CN112337310A - Water purifier adopting loose joint device to connect upper control module with U-shaped filter container bin - Google Patents

Abstract

The invention relates to the water treatment industry, in particular to drinking water filtration. The invention discloses a water purifier which adopts a loose joint device to connect an upper control module and a U-shaped filter container bin. The device comprises a filter liner, a water passing control part, a water passing pipeline, a movable upper control module, a U-shaped filter liner bin for placing and fixing the filter liner, an upper control module and a swing locking device; the water passing pipeline is connected with a plurality of filter liners and a water passing control component to form a filter channel; the film stripping device also comprises an undercut structure corresponding to the swing locking device and a stripping window arranged along the vertical direction for arranging the undercut structure; the undercut structure is formed by injection molding with the demoulding window and the part where the undercut structure is positioned near the matching end and forms a concave-convex side wall structure with the corresponding vertical side wall; the lock catch piece swings around the swing shaft to enable a buckle on the lock catch piece to be in clamping fit with a clamping seat structure on the second component, and the upper control module and the U-shaped filter liner bin are connected into a whole; the upper control module can be lifted by disengaging the buckle of the locking piece.

Description

Water purifier adopting loose joint device to connect upper control module with U-shaped filter container bin

Technical Field

The invention relates to the water treatment industry, in particular to the aspects of deep filtration and purification of drinking water.

Background

The horizontal water purifier is very convenient to use: can be placed on the table-board of a kitchen cabinet and can also be placed in the cabinet; the machine is directly placed on the use position without punching and hanging the machine. Because the filter liner is positioned above the machine base, the filter liner is convenient to replace, and time and labor are saved relatively. However, the biggest problem of adopting the horizontal water purifier structure is that the operation surface of the machine is small, the display part and the operation control device can only be arranged on the side vertical surface of the machine, the top surface is used for replacing the filter liner, and the water passing control part can be placed everywhere. Since the water purifier has limited length, width and height, generally less than 500 mm × 200mm × 450 mm, the installation of the display control device on the side vertical surface of the machine affects the number of the filter cartridges. When the closed filter container is used, the water port of the filter container faces downwards, so that water in the filter container can flow out from the water port of the filter container to pollute the surrounding environment during replacement. The water in the front and rear filter containers of the filter container to be replaced also flows out from the water inlet and outlet pipelines of the corresponding base of the filter container to be removed respectively until the water level in the water purifier is balanced again, so that the horizontal water purifier has the characteristic of convenient filter container extraction, but the mode is rarely adopted. Therefore, the water purifier with the built-in upper control module and the lower filter container cabin movably connected with the upper control module through the swing locking device has the following advantages: the setting machine has simple structure, stable assembly quality of control parts and high efficiency; the disassembly and the assembly are easy and labor-saving; the machine has a double-layer structure, so that an upper operation surface and an operation and maintenance space with larger area are formed in a limited size space; meanwhile, the requirements of display control, part maintenance, filter liner replacement and machine operation functions are met, and the manufacturing requirements of the machine on simple structure and low cost are met; the user can open overhead control module by oneself and change the filter core, avoids making an appointment inconvenience and the service expenditure that the service arouses of going to the door by professional, has correspondingly reduced the use cost of filter core, has also made things convenient for remote user simultaneously. However, the swing lock device requires a through-long undercut structure on the vertical side wall of the machine housing in the vertical direction, and since the swing lock device needs to bear the weight of the water passing machine of 15-20 kg, and the pipe pressure of the tap water in the filter channel of the built-in loose joint of the machine, a plurality of swing lock devices need to be arranged. For the original quite tense size of the water purifier, a plurality of vertical through-long side grooves are arranged in a lower filter liner bin (U-shaped filter liner bin) with a plurality of side groove structures, so that the cross sectional area of the lower filter liner bin is reduced, the arrangement of a built-in filter liner and a booster pump is influenced, particularly, the arrangement of a filtering scheme is influenced because the filter liners are difficult to arrange side by side and only a single row of filter liners (the diameter of a conventional filter liner is 70-80mm, the diameter of a 400G closed reverse osmosis membrane filter liner is 90-100 mm; a filtering channel is usually provided with 3-6 filter liners, the size of the booster pump is 100mm in diameter and 200mm in length) is difficult, the originally limited water storage amount of the lower filter liner bin serving as a concentrated water discharge storage water tank is reduced, a concentrated water discharge recycling system is frequently switched, or TDS in concentrated water cannot be effectively diluted and can only be directly discharged, influences the normal switching operation state of the machine concentrated discharge water recycling system and the pipeline tap water. In addition, the vertical side wall of the machine shell is provided with a plurality of vertical through-length side grooves, so that the defects of poor overall appearance and shape and low product grade are caused. The above-mentioned drawbacks and disadvantages make it difficult to widely popularize the water purifier.

Disclosure of Invention

The invention mainly solves the technical problem of providing a simple and practical water purifier which adopts a loose joint device to connect an upper control module and a U-shaped filter chamber, so as to overcome the defects and shortcomings.

A water purifier adopting a loose joint device to connect an overhead control module and a U-shaped filter container cabin comprises a filter container, a water passing control part, a water passing pipeline, an overhead control module, a U-shaped filter container cabin and a swing locking device, wherein the overhead control module is used for placing the control part and arranging a downward matching end on a vertical side wall; the control component or the electric control component or the combined device of the water passing control component and the electric control component; the water passing pipeline is connected with a plurality of filter liners and a water passing control component to form a filter channel; the upper control module is arranged above the filter liner in the U-shaped filter liner bin and is in contact fit with the U-shaped filter liner bin, and the upper control module and the U-shaped filter liner bin are connected into a whole through a swinging locking device; the swing locking device swinging along the longitudinal direction is a single-shaft swing locking device provided with a swing shaft, a locking piece with a buckle and a clamping seat structure, or a swing shaft, a swing connecting rod structure swinging around the swing shaft and a double-shaft swing locking device hinged with the swing connecting rod structure through a middle swing shaft and provided with the locking piece with the buckle and the clamping seat structure; the device is characterized by also comprising an undercut structure corresponding to the swing locking device and a stripping window which is arranged on a part shell of the undercut structure along the vertical direction and is correspondingly arranged on the part shell; the demoulding window vertically corresponds to the clamping seat structure or the swing shaft and the concave space structure positioned on the inner side of the clamping seat structure or the swing shaft; the side concave structure is arranged near the matching end on the vertical side wall and forms a concave-convex side wall structure with the corresponding vertical side wall, and is formed by injection molding with the demoulding window, the concave-convex space structure and the part where the concave-convex space structure is positioned, or an external side concave structure which supports the swing shaft and the lock catch piece and is positioned on the first part, or an internal side concave structure which supports the card holder structure and is positioned on the second part, or a combined side concave structure which is formed by combining the external side concave structure which supports the swing shaft and the lock catch piece and is positioned on the first part and the internal side concave structure which supports the card holder structure and is positioned on the second part; the lock catch piece on the first component swings around the swing shaft, so that the buckle on the lock catch piece is clamped and matched with the clamping seat structure on the second component, and the upper control module and the U-shaped filter liner bin are connected into a whole; the buckle which is separated from the locking piece can be opened and the overhead control module can be lifted.

The undercut structure is provided with an undercut connecting structure at the joint with the vertical side wall; this undercut connection structure or window frame or shelter from the structure, wherein to the window frame, the inner chamber of part at this window frame part shelters from: the demoulding window on the part shell where the window frame is located vertically corresponds to the clamping seat structure or the swing shaft through the window frame, and the concave space structure arranged on the inner side of the clamping seat structure or the swing shaft is a through concave space structure and vertically corresponds to the rear side of the window frame along the vertical demoulding direction; to sheltering from the structure, should shelter from the inner chamber of structure sheltering from the part and respectively with the vertical correspondence of demoulding window and cassette structure or pendulum shaft on the part casing at place: the concave space structure arranged on the inner side of the clamping seat structure or the swing shaft is a through concave space structure and corresponds to the shielding structure along the vertical demoulding direction, a swing space structure is arranged between the shielding structure and the clamping seat structure or the swing shaft, and in the process of injection molding of the side concave structure, the demoulding window and the part where the side concave structure is connected, the swing space structure is formed through a transverse rib drawing mode perpendicular to the vertical demoulding direction.

The device also comprises a sealing cover; the sealing cover corresponds to the demoulding window or the window frame or corresponds to the demoulding window and the window frame respectively; the sealing cover is connected with the component where the demoulding window is positioned into a whole and seals the demoulding window or the window frame through a fastening standard component or plastic welding or plastic bonding or elastic extrusion of a rubber body.

The device also comprises an external undercut structure part for supporting the swing shaft; the undercut structure is a single built-in undercut structure; a gap facing the second component is vertically arranged near the matching end of the vertical side wall of the first component corresponding to the built-in undercut structure; the external undercut structure for supporting the pendulum shaft is fixed on the inner side of the opening through a fastening standard part or plastic welding or plastic bonding, and forms a concave-convex side wall structure with the corresponding vertical side wall; the lock catch piece swings around the swing shaft arranged on the outer side concave structural part to enable the buckle on the lock catch piece to be in clamping fit with the clamping seat structure arranged on the built-in side concave structure on the second component.

The undercut structure is either a single external undercut structure or a combined undercut structure including the external undercut structure; the external undercut structure or the conjoined pendulum shaft connected with the side wall is arranged, and the lock catch piece or the swinging connecting rod structure and the lock catch piece swing around the conjoined pendulum shaft to enable the buckle to be in loose joint fit with the corresponding cassette structure, or the two-shaft hole structure which is positioned on the two opposite side walls and corresponds to the two-shaft hole structure is arranged, and the lock catch piece or the swinging connecting rod structure and the lock catch piece swing around the pendulum shaft arranged on the shaft hole structures on the two sides to enable the buckle on the lock catch piece to be in loose joint fit with the corresponding cassette structure, the two-shaft hole structure is either a shaft hole structure provided with a vertical elastic contraction opening, or a shaft hole structure provided with a one-way vertical opening and an internal thread structure, or a shaft hole structure provided with a two-way vertical opening, or a combined shaft hole structure formed by a one-way vertical opening and an internal thread structure, wherein for the shaft hole structure provided with a vertical, the vertical elastic contraction notch faces or faces the second component or is opposite to the second component and corresponds to the demoulding window on the first component, and the pendulum shaft is clamped into the shaft hole structure along the vertical elastic contraction notch; for the shaft hole structure provided with the one-way vertical gap and the internal thread structure, the vertical gap is connected and matched with the internal thread structure through an additional pressing plate and a screw to form a closed shaft hole structure so as to limit the separation of the swing shaft arranged in the shaft hole structure and the external undercut structure; for the shaft hole structure provided with the bidirectional vertical notch, two groups of shaft hole structures with opposite vertical notches are arranged on the side walls of the two sides of the external undercut structure side by side, and a lock catch piece or a swinging connecting rod structure which is arranged between the two groups of shaft hole structures and is provided with a shaft hole is connected with the two groups of shaft hole structures in series by a separate swinging shaft to form a hinge mechanism; to combination shaft hole structure, one side lateral wall of external undercut structure sets up a set of shaft hole structure of taking the vertical opening of opposite orientation side by side, the opposite side lateral wall of external undercut structure sets up one-way vertical opening and internal thread structure and constitutes closed shaft hole structure through the clamp plate and the screw of establishing in addition and internal thread structural connection cooperation, the hasp piece or the swing connecting rod structure that set up the disjunctor pendulum shaft violently insert along the pendulum shaft axis, the front end pendulum shaft inserts the shaft hole structure that sets up two-way vertical opening, the rear end pendulum shaft is arranged in the shaft hole structure of taking vertical opening and is connected the cooperation through clamp plate and screw and internal thread structure, restriction pendulum shaft and external undercut structural separation then.

The locking mechanism is arranged on the first component and the swing locking device and is in contact fit with the first component and the swing locking device to form a locking mechanism for limiting the swing of the locking piece, so that the locking piece is prevented from being disengaged from the clamping fit with the clamping seat structure; the locking mechanism is either a contact locking mechanism or a lock hook locking mechanism, wherein for the contact locking mechanism, when a lock fastener is clamped and matched with the clamping seat structure and the upper control module and the two parts of the U-shaped filter liner bin are connected and fixed together, two matching structures respectively arranged on the first part and the swinging locking device are also in mutual contact and matching; the lock hook locking mechanism also comprises a lock hook locking mechanism which is formed by a lock hook or a lock column which is arranged on the first part and is used as a matching structure and a lock column or a lock hook which is arranged on the double-shaft swinging locking device and is used as a matching structure, wherein a movable part in the lock column and the lock hook which are movably matched is controlled to be positioned at a movable joint position which is movably matched with the fixed part and corresponds to the reset position of a reset spring by the additionally arranged reset spring, and the movable joint direction of the lock hook locking mechanism is different from the clamping direction of the double-shaft swinging locking device; when a lock catch piece of the double-shaft lock catch device is in clamping fit with the card holder structure and the upper control module is connected and fixed with the two parts of the U-shaped filter container bin, the lock catch or the lock column arranged on the part I and the movable joint between the lock column or the lock hook arranged at the rear end of the lock catch piece close to the middle swing shaft or the swing connecting rod structure are matched and correspond to the reset position of the reset spring, and when external force is applied to overcome the resilience force of the reset spring to influence the moving piece in the lock column and the lock hook, the movable piece is moved and corresponds to the deformation position of the reset spring when the movable joint is withdrawn from the fixed piece; the moving part moves and resets under the action of the resilience force of the reset spring after the applied external force is removed.

The moving part and the return spring are arranged on the double-shaft swinging locking device and are arranged in a sliding sleeve with a limit at the rear end of the locking piece or the swinging connecting rod structure; the demoulding window on the shell of the first component is of an outward U-shaped demoulding window structure and is vertically connected with the side wall of the external undercut structure to form an outer side vertical face of the first component, and then the demoulding window which is originally positioned on the inner side of the vertical side wall is made into a U-shaped demoulding window structure arranged on the vertical side wall; the fixing piece corresponding to the inside of the U-shaped stripping window structure is vertically and correspondingly arranged with the swing shaft on the external undercut structure; after the movable part capable of vertically moving vertically moves to the position that the lower moving edge is disengaged from the loose joint of the fixed part, the fastener on the fastener swings around the swing shaft to disengage from the U-shaped filter liner bin clamping seat structure.

The swing spring respectively acts between the external undercut structure and the swing connecting rod structure; the locking mechanism is a lock hook locking mechanism; the reset position of the swing spring corresponds to the hinged end of the swing connecting rod structure and the lock catch piece close to the clamping seat structure on the second part, and the deformation position of the swing spring corresponds to the hinged end of the swing connecting rod structure and the lock catch piece far away from the clamping seat structure on the second part.

The lock catch piece resetting mechanism is also included; the reset mechanism of the locking part is respectively provided with a reset position and a deformation position, or the locking part is respectively acted on a locking part spring between the locking part and the swing connecting rod structure, or the limiting structure is arranged at the inner side of the second clamping seat structure of the component, wherein for the locking part spring, the reset position of the locking part spring is far away from the clamping seat structure on the second component corresponding to the hinged end of the swing connecting rod structure and the locking part, and the deformation position of the locking part spring is close to the clamping seat structure on the second component corresponding to the hinged end of the swing connecting rod structure and the locking part; for the limiting structure, the lock catch piece swings around the swing shaft along with the swing connecting rod structure, one end of the buckle of the lock catch piece moves from the position matched with the clamping seat structure to be contacted with the clamping seat structure, exits from the position matched with the clamping seat structure along the limiting structure and is far away from the clamping seat position on the second component.

Also includes a support structure; the lock catch piece is provided with a lifting window structure; the supporting structure is arranged on the inner side of the lock catch piece in the external undercut structure on the vertical side wall of the upper control module and corresponds to the lifting window structure; when the locking fastener is in clamping fit with the clamping seat structure and the upper control module and the two parts of the U-shaped filter container bin are connected and fixed together, the supporting structure is in contact fit with the lifting window structure positioned below the supporting structure to limit the lifting window structure and the locking fastener to move upwards.

The upper control module concave-convex side wall structure and the U-shaped filter liner bin concave-convex side wall structure are arranged in an up-and-down alignment mode or in an up-and-down staggered mode, and form a channel communicated with the inner cavity of the U-shaped filter liner bin, wherein the channel communicated with the inner cavity of the U-shaped filter liner bin is formed in the up-and-down staggered mode, and the channel is additionally provided with a baffle; the baffle is movably connected and matched with the external undercut structure or the external undercut structural part into a whole through a slot structure or a fastening standard part or through elastic interference fit or plastic welding or plastic bonding, and shields a channel leading to the U-shaped filter container cabin.

The upper end face of the upper control module is provided with a control panel, and the control panel is used for shielding a stripping window positioned on the inner side of the vertical side wall.

Compared with the existing water purifier, the invention has the following advantages: firstly, the lower filter liner storehouse (U type filter liner storehouse) of avoiding appearing setting up a plurality of undercut structures sets up many vertical side flutes that lead to long, then reduce the cross-sectional area in lower filter liner storehouse, both influence the setting of built-in filter liner and booster pump, make the lower filter liner storehouse as row's dense water storage tank originally limited deposit water volume become still less again, or lead to row's dense water recycling system frequently to switch over and use the pipeline running water, or lead to row's TDS in the dense water to be worth can not effectual dilution and be in higher state and can only directly discharge, influence the defect and the not enough of the normal switch running state of machine row's dense water recycling system and pipeline running water. Secondly, the lock hook locking mechanism avoids the fastener to be disengaged from being matched with the clamping of the clamping seat structure, so that the clamping mode of the double-shaft swinging locking device is more stable and reliable, and the double-shaft swinging locking device is more convenient for old and young weak consumers to operate more easily. And thirdly, an external undercut structure with a larger thickness or an external undercut structural part arranged on the U-shaped filter container cabin is adopted to be matched with an internal undercut structure with a smaller thickness on the U-shaped filter container cabin correspondingly, so that a more abundant lifting space can be provided for the inner side of the lifting window structure, and the size of the port of the U-shaped filter container cabin can be enlarged, so that a filter container with a larger size can be placed conveniently. Fourthly, the defects that a plurality of vertical through-length side grooves are formed in the vertical side wall of the machine shell, the overall appearance is poor in shape and the product grade is low are avoided. In addition, the upper control module and the U-shaped filter container bin which adopt the technical scheme have the advantages of simpler and more convenient manufacture, lower manufacture cost and higher efficiency.

Description of the drawings:

FIG. 1 is a longitudinal section schematic diagram of a combined structure formed by an external undercut structure, a U-shaped stripping window, a connected single-arm swing shaft, a swing connecting rod structure with a notch shaft hole structure and a middle swing shaft, a locking piece with a sliding sleeve internal moving part with a limit position and a return spring, an upper control module of a swing hook locking mechanism, a U-shaped filter container bin with an internal undercut structure, a clamping seat structure, an internal concave space structure and a stripping window, moving up and down and in contact fit, and a double-shaft swing locking device.

FIG. 2 is a schematic top view of the overhead control module of the present invention using the structure of FIG. 1.

FIG. 3 is a schematic longitudinal cross-sectional view of the present invention in the form of a combination of the structure of FIG. 1 and a window frame.

FIG. 4 is a longitudinal sectional view of the combined structure of the structure of FIG. 1 and the shielding structure according to the present invention.

Detailed Description

Generally, the filtering channels connecting the filtering bladders and the water passing control component are respectively connected with the water inlet and outlet pipelines of the machine base to form the filtering channels. And selecting relevant water passing control components to control relevant water passing pipelines in the filtering channel of the machine base. The water passing control part is at least one of a waterway switcher, a water passing control valve, a water pressure control switch, a flow sensor, a water pump, a membrane concentrated water discharge flow control device, a TDS probe and a water level monitoring device.

The water flow control components are conventional in the prior art, and it is not described that all of the water flow control components are necessarily adopted in the present application. As to which water passing control components need to be configured in a water purifier provided with a microfiltration membrane, an ultrafiltration membrane, a reverse osmosis membrane filter liner or a nanofiltration membrane filter liner, the water passing control components need to be configured according to specific needs of various machine types and connected with corresponding water passing pipelines, and the water passing control components belong to common knowledge in the field except for special description. The function and principle of the common water passing control part and the connected water passing pipeline are not repeated in the scheme.

Example 1. A water purifier adopting a loose joint device to connect an overhead control module and a U-shaped filter container cabin comprises a filter container, a water passing control part, a water passing pipeline, an overhead control module, a U-shaped filter container cabin and a swing locking device, wherein the overhead control module is used for placing the control part and arranging a downward matching end on a vertical side wall; the control component or the electric control component or the combined device of the water passing control component and the electric control component; the water passing pipeline is connected with a plurality of filter liners and the water passing control component to form a filter channel.

The upper control module is arranged above the filtering liner in the U-shaped filtering liner bin and is in contact fit with the U-shaped filtering liner bin, and the upper control module and the U-shaped filtering liner bin are connected into a whole through a swinging locking device.

The upper control module or part or all of the upper control module is arranged on the vertical side wall of the U-shaped liner filtering bin. When the upper control module part is arranged on the vertical side wall of the U-shaped filter container cabin, the U-shaped filter container cabin is inserted and connected through a partial structure arranged in the vertical side wall of the U-shaped filter container cabin, and then the contact between the upper part and the lower part is stabilized (positioned) so as to be convenient for movably connecting through the swing locking device.

When the upper module part is arranged in the U-shaped filter container bin and positioned above the filter container, the upper module part can be directly contacted and matched with the U-shaped filter container bin, and can also be connected with the filter container in the U-shaped filter container bin into a whole through an additionally arranged loose joint device, so that the connection and the matching of the upper module and the U-shaped filter container bin are realized. The latter is also regarded as the connection and matching of the upper module and the U-shaped filter container cabin.

The swing locking device swinging along the longitudinal direction is a single-shaft swing locking device provided with a swing shaft, a locking piece with a buckle and a clamping seat structure, or a swing shaft, a swing connecting rod structure swinging around the swing shaft and a double-shaft swing locking device hinged with the swing connecting rod structure through a middle swing shaft and provided with a locking piece with a buckle and a clamping seat structure.

In the two parts of the upper control module and the U-shaped filter container bin, a part provided with a pendulum shaft and a locking piece with a buckle is a first part, and a part provided with a clamping seat structure is a second part.

The water purifier also comprises an undercut structure corresponding to the swing locking device and a stripping window which is arranged on the shell of the component on which the undercut structure is arranged along the vertical direction; the demoulding window vertically corresponds to the clamping seat structure or the swing shaft and the concave space structure positioned on the inner side of the clamping seat structure or the swing shaft.

The side concave structure is arranged near the matching end on the vertical side wall and forms a concave-convex side wall structure with the corresponding vertical side wall, and forms an undercut structure with the demoulding window, the concave-convex space structure and the part where the concave-convex space structure is formed in an injection molding mode, or supports the swing shaft and the locking piece and is positioned on the first part, or supports the clamping seat structure and is positioned on the second part, or supports the swing shaft and the locking piece respectively and is positioned on the first part and is combined with the external undercut structure and the internal undercut structure which is positioned on the second part to form a combined undercut structure.

The lock catch piece on the first component swings around the swing shaft, so that the buckle on the lock catch piece is clamped and matched with the clamping seat structure on the second component, and the upper control module and the U-shaped filter liner bin are connected into a whole; the upper control module can be lifted by disengaging the buckle of the locking piece.

It should be noted that when the undercut structure is an external undercut structure supporting the pivot shaft and the locking member and is provided with the release window, the structure corresponding to the single external undercut structure is a separate component of the internal undercut structure, i.e., an internal undercut structure, which is manufactured separately. The buckle on the hasp piece is matched with the clamping seat structure clamping connection on the built-in lateral concave structure on the component II through a swing channel (a non-shielding swing space structure and the same structure at the bottom) by vertically arranging a corresponding structure near the matching end of the vertical lateral wall of the component II corresponding to the external lateral concave structure and connecting and fixing the built-in lateral concave structure piece through a fastening standard piece to form a concave-convex lateral wall structure. At this time, the inner side concave structure and the corresponding concave-convex side wall structure are equal to the inner side concave structure which is arranged near the matching end on the vertical side wall and is formed by injection molding with the demoulding window and the component II and the concave-convex side wall structure formed by the corresponding vertical side wall.

The built-in undercut structure can be connected and fixed through fastening standard parts, and can also be connected with the second component into a whole through plastic welding or plastic bonding.

No matter the undercut structure or the external undercut structure (piece) or the internal undercut structure (piece) or the combined undercut structure provided with the stripping window is arranged, the basic requirements of the swing channel required by the clamping fit of the swing locking device locking fastener swinging around the swing shaft and the clamping seat structure are met.

The undercut structure is disposed adjacent the mating end on the vertical sidewall and forms a concave-convex sidewall structure with the corresponding vertical sidewall. In this embodiment, it has relative meaning to place swing latch device in the unsmooth lateral wall structure of vertical lateral wall. The vertical side wall connected with the side wall of the side concave structure is a side convex structure in the concave-convex side wall structure.

In the present case, "for setting up this undercut structure and the corresponding demoulding window that sets up along vertical direction on its place part", both can correspond the undercut structure that sets up disjunctor pendulum shaft or biax pore structure and the demoulding window that sets up, also can correspond and set up the undercut structure to and set up fixed knot with biax pore structure cooperation pendulum shaft's fixed knot and construct, the demoulding window that sets up like internal thread structure or card structure soon, can also correspond the fixed knot who sets up fixed and biax pore structure cooperation pendulum shaft alone, the demoulding window that sets up like internal thread structure or card structure soon. In summary, the external undercut structure is provided to support and fix the pendulum shaft on the first component; the built-in undercut structure is arranged to support and fix the clamping seat structure on the second part, so that a window arranged on a shell of a part (an upper control module or a U-shaped filter container bin) where the swing shaft or the clamping seat structure is located along the vertical direction for fixing the swing shaft or the clamping seat structure, a part (the upper control module or the U-shaped filter container bin) with an inner cavity, the swing shaft or the clamping seat structure and a demoulding window arranged by connected injection molding of a concave space structure located on the inner side of the clamping seat structure or the swing shaft belong to 'corresponding demoulding windows correspondingly arranged on a shell of the part where the undercut structure is located along the vertical direction for setting the undercut structure'.

In this embodiment, the upper control module may be set as a first component, and the U-shaped bladder chamber may be set as a second component (preferred mode); the U-shaped filter container bin can be set as a first component, and the upper control module can be set as a second component.

As an improvement, when the lock catch piece is in clamping fit with the clamping seat structure and connects and fixes the upper control module and the two parts of the U-shaped filter container cabin together, the outer side face of the lock catch piece and the outer vertical faces of the vertical side walls of the upper control module and the two parts of the U-shaped filter container cabin are positioned on the same side vertical face.

As an improvement, the upper control module is provided with an upper cover. The upper cover is a movable cover which is movably matched with the upper control module or a turnover cover, the rear side of the turnover cover is hinged with the rear side of the upper control module through a mutually arranged shaft and shaft sleeve matching mechanism, and the front side of the turnover cover is in swing fit with the upper control module through a shaft.

The matching modes of the shaft sleeve and the pendulum shaft are three types: 1. the upper control module is provided with a shaft sleeve with a notch, and the rear side wall of the U-shaped filter chamber is provided with a swing shaft bracket; the shaft sleeve is hinged and matched with the pendulum shaft through the gap and swings around the pendulum shaft. 2. The overhead control module is provided with a supporting plate with a shaft hole, and the rear side wall of the U-shaped filter liner bin is provided with a cantilever swing shaft frame of which one end is connected with a swing shaft; the supporting plate is inserted into the swing shaft from the non-connecting end of the swing shaft through the shaft hole and swings around the swing shaft. 3. The upper control module is provided with a shaft sleeve, and the rear side wall of the U-shaped filter liner bin is provided with a supporting plate with a shaft hole and a movable swing shaft; the pendulum shaft passes through the shaft sleeve and shaft holes on the supporting plates on two sides of the shaft sleeve and enables the shaft sleeve to swing around the pendulum shaft.

Swing latch device or unipolar swing latch device, or set up the unipolar swing latch device of the hasp piece that the pendulum shaft and area lock colluded and lock post, or biax swing latch device, wherein:

to unipolar swing locking device, this unipolar swing locking device's pendulum shaft and hasp piece arrange U type in strain courage storehouse and put the part one in two parts of control module in, make the buckle of the last other end of hasp piece and the cassette structure contact cooperation of setting on two parts of U type strain courage storehouse and put two parts of control module through hasp piece around pendulum shaft swing and elastic deformation, strain courage storehouse two parts of upper control module with upper control module and be connected fixedly together, open the buckle of this hasp piece alright in order to propose overhead control module. The lock catch piece swinging around the swing shaft can be connected with the swing shaft or separated from the swing shaft.

In addition, similar to the single-shaft swinging locking device, the rear end of a part I arranged on the U-shaped filter container bin and provided with a locking piece is hinged with a swinging shaft arranged on the part I, and a lock hook of which the front end corresponds to the buckle is movably connected (clamped) with a clamping seat structure on the part II or a lock column serving as the clamping seat structure under the action of an elastic resetting mechanism. Because only one swing shaft is arranged, the single-shaft swinging locking device adopting the lock hook and the lock column also belongs to the single-shaft swinging locking device in the scheme. In addition, as a derived mechanism mode of the single-shaft swinging locking device provided with the locking piece and the locking hook, the locking piece can be arranged on one of the two parts, and is in contact fit with a clamping seat structure on the second part or a locking column serving as the clamping seat structure under the action of a return spring, so that the upper control module and the U-shaped filter container bin (or the filter container) are connected into a whole; the lock catch piece overcomes the acting force of the return spring and swings around the swing shaft, and the lock hook on the lock catch piece is disengaged from the lock column.

The principle of the single-shaft swinging locking device is the same. In the present case, the mechanism mode of the single-axis swing locking device adopting the lock hook and the lock column is seen from the broad concept, and the single-axis swing locking device adopting the lock hook and the lock column is treated equally with the single-axis swing locking device adopting the buckle and the clamping seat structure.

For the double-shaft swinging locking device, a swing shaft of the double-shaft swinging locking device and a locking piece hinged with the other end of the swinging connecting rod structure through a non-fixed middle swing shaft are arranged on one of the U-shaped filter container cabin and the upper control module, the swinging connecting rod structure swings around the swinging shaft in the positive direction (close to the clamping seat structure) to drive the hinged locking fastener (swing around the shaft), and the buckle at the other end (clamping end) of the lock catch piece is contacted and matched with the clamping seat structure on the second part, under the premise of keeping the contact and matching of the buckle of the locking piece and the clamping seat structure, the swinging connecting rod structure swings reversely around the swing shaft to drive the locking piece to swing reversely (around the shaft) to a supporting point where the buckle is in contact and matching with the clamping seat structure, and the hinged pivot of the swinging connecting rod structure and the lock catch piece are respectively positioned at two sides of the pivot of the swinging shaft, and then the upper control module and the U-shaped filter chamber are fixedly connected together.

Typically the line joining the three fulcrums makes an angle equal to 180 °. At the moment, the upward acting force born by the overhead control module is on a vertical straight line, no component force for enabling the lock catch piece to swing in the positive direction exists, and the overhead control module is stably connected with the U-shaped filter container bin. On the basis, for higher safety, the angle formed by the connecting lines of the three supporting points can be larger than 180 degrees (the upper control module is limited to move only vertically). The upward force applied to the upper control module produces a corresponding component force which is opposite to the component force required for the forward swinging (releasing) of the locking fastener. Under special circumstances, when the angle formed by connecting lines of the three fulcrums is less than 180 degrees, the component force generated by the upward acting force born by the upper control module by means of other structures overcomes the component force generated by the forward swing (disconnection) of the locking fastener, and the upper control module and the U-shaped liner bin are stably connected and fixed together.

The swinging connecting rod structure swings around the swinging shaft in the positive direction to drive the buckle on the lock catch piece to be separated from the contact fit with the clamping seat structure on the second component, so that the overhead control module can be opened and put away. The swing connecting rod structure swinging around the swing shaft can be connected with the swing shaft or separated from the swing shaft.

Because the swing link structure swings around the swing shaft and drives the latch member hinged with the swing link structure to swing (around the shaft) through the middle swing shaft, the swing of the latch member of the double-shaft swing latch device is regarded as swinging (indirectly) around the swing shaft.

In the scheme, the swinging of the locking fastener which swings around a swing shaft in the positive direction along with a connecting rod structure (the middle swing shaft is close to a clamping seat structure) is regarded as the forward swinging around the shaft; the swinging of the locking fastener which swings reversely around the swing shaft along with the swinging connecting rod structure (the middle swing shaft is far away from the clamping seat structure) is regarded as the swinging around the reverse shaft. The swing connecting rod structure can be connected with the swing shaft and swing around the shaft, and can also be separated from the swing shaft and swing around the shaft.

Example 2. On the basis of the embodiment 1, an undercut connecting structure is arranged at the connecting position of the undercut structure and the vertical side wall; the undercut attachment structure may be a window frame. The window frame partially shields the inner cavity of the part, namely the window of the window frame is communicated with the inner cavity of the part, and the periphery of the window shields the inner cavity of the part; the demoulding window on the part shell where the window frame is positioned vertically corresponds to the clamping seat structure or the swing shaft through the window frame; the concave space structure arranged on the inner side of the clamping seat structure or the swing shaft is a through concave space structure and vertically corresponds to the rear side of the window frame along the vertical demoulding direction. At the moment, the film is removed in one direction along the vertical film removing direction through the window frame, so that the injection molding manufacturing of the clamping seat structure or the swing shaft and part of inner cavities (vertical space) of the part is realized. The injection molding of the space structure is realized by demoulding the concave space structure part corresponding to the rear part of the window frame in the other opposite direction along the vertical demoulding direction.

Preferred modes: the undercut structure arranged near the upward mating end of the U-shaped filter container cabin is a built-in undercut structure which is provided with a window frame and arranged near the mating end of the vertical side wall; the demoulding window is vertically arranged on a U-shaped filter container bin base (shell) and corresponds to a partial inner cavity of the U-shaped filter container bin arranged at the lower part of the window frame, and the swinging space structure is arranged at the upper part of the window frame and below the clamping seat structure through the window frame. The related structure is injection molded through a downward stripping process. And the concave space structure part corresponding to the rear part of the window frame is subjected to upward demoulding along the vertical demoulding direction, so that the injection molding of the space structure is realized.

When the undercut structure arranged near the upward mating end of the U-shaped filter container cabin is an external undercut structure which is provided with a window frame and is arranged near the mating end of the vertical side wall, a demoulding window arranged on a base (shell) of the U-shaped filter container cabin vertically corresponds to a partial inner cavity of the U-shaped filter container cabin arranged at the lower part of the window frame, and a swing space structure which is arranged at the upper part of the window frame and below the swing shaft through the window frame. The inner concave space structure arranged on the inner side of the swing shaft is an inner concave space structure which is communicated up and down and vertically corresponds to the rear side of the window frame along the vertical demoulding direction.

In addition, a similar structural pattern may be used when the undercut structure disposed adjacent the downward mating end of the overhead control module is an external undercut structure or an internal undercut structure disposed adjacent the mating end of the vertical sidewall with the window frame.

Example 3. On the basis of the embodiment 1, an undercut connecting structure is arranged at the connecting position of the undercut structure and the vertical side wall; the undercut connecting structure may be a blind structure. The shielding structure shields the inner cavity of the part; the shielding structure vertically corresponds to the stripping window and the clamping seat structure or the swing shaft on the part shell respectively: the concave space structure arranged on the inner side of the clamping seat structure or the swing shaft is a through concave space structure and corresponds to the shielding structure along the vertical demoulding direction; a swing space structure is arranged between the shielding structure and the clamping seat structure or the swing shaft; in the process of injection molding of the undercut structure, the demoulding window and the part where the undercut structure is located, the swing space structure is formed in a transverse ribbing mode perpendicular to the vertical demoulding direction.

Preferred modes: the undercut structure arranged near the mating end of the U-shaped filter container bin is a built-in undercut structure which is provided with a shielding structure and arranged near the mating end of the vertical side wall; the demoulding window is vertically arranged on the U-shaped filtering container bin base (shell) and corresponds to a partial inner cavity of the U-shaped filtering container bin arranged at the lower part of the shielding structure, and the partial structure is formed by injection molding through a downward demoulding process. The concave space structure corresponding to the rear part of the shielding structure and the clamping seat structure adopts a through concave space structure and is subjected to upward demoulding along the vertical demoulding direction, so that the injection molding of the concave space structure is realized. The swing space structure is formed in the injection molding process through a transverse ribbing mode perpendicular to the vertical demolding direction.

When the undercut structure arranged near the mating end on the U-shaped filter container bin is an external undercut structure provided with a shielding structure and arranged near the mating end of the vertical side wall, the demoulding window arranged on the U-shaped filter container bin base (shell) vertically corresponds to a partial inner cavity of the U-shaped filter container bin arranged at the lower part of the shielding structure, and the partial structure is formed by injection molding through a downward demoulding process. The inner concave space structure arranged on the inner side of the swing shaft is an inner concave space structure which is communicated up and down and vertically corresponds to the rear side of the window frame along the vertical demoulding direction. The swing space structure arranged at the upper part of the shielding structure and below the swing shaft is formed in a transverse ribbing mode perpendicular to the vertical demoulding direction in the injection molding process.

In addition, when the undercut structure disposed near the downward mating end of the upper control module is an external undercut structure or an internal undercut structure disposed near the mating end of the vertical sidewall with a shielding structure, a similar structural pattern may also be employed.

Example 4. On the basis of the embodiments 1 and 2, the sealing device also comprises a sealing cover; the sealing cover corresponds to the demoulding window or the window frame or corresponds to the demoulding window and the window frame respectively; the sealing cover is connected with the component where the demoulding window is positioned into a whole and seals the demoulding window or the window frame through a fastening standard component or plastic welding or plastic bonding or elastic extrusion of a rubber body. Wherein:

the sealing cover is correspondingly provided with a stripping window, and the sealing cover is connected with the U-shaped filter container cabin in a sealing way through a fastening standard part or plastic welding or plastic bonding or rubber body elastic extrusion to form a cavity of the back cover.

As an improvement, the cavity of the back cover is used as a concentrated water drainage water storage tank in a concentrated water drainage recycling system for storing concentrated water drained by a reverse osmosis membrane and recycling, and the space between the U-shaped filter liner bin and the filter liner is used for storing water, namely the water storage filter liner bin: the filter liner is in the state of water passing through the inner part and the outer part.

The water storage filter container cabin is either a single-cavity structure mode only provided with a water storage area or a double-cavity structure mode provided with a water storage cavity for placing the filter container and a water-free cavity for placing the water passing control component.

The sealing cover is correspondingly provided with the window frame, and the sealing cover is connected and matched with the window frame structure through a fastening standard part or plastic welding or plastic bonding or rubber body elastic extrusion to shield an exposed window generated by arranging a clamping seat structure or a swing shaft, particularly a U-shaped filter container bin, so that the sealing cover can be used as a concentrated water drainage water storage tank for storing and draining concentrated water and can prevent the sealing cover from being polluted by environment and insect pests.

On the basis, the sealing covers of the stripping window and the window frame are correspondingly arranged, and the sealing covers can also be arranged to respectively correspond to the stripping window and the window frame.

Example 5. On the basis of the embodiments 1, 2, 3 and 4, the swing arm further comprises an external undercut structure part for supporting the swing shaft; the undercut structure is a single built-in undercut structure; a gap facing the second component is vertically arranged near the matching end of the vertical side wall of the first component corresponding to the built-in undercut structure; the outer side concave structural parts which are positioned at two sides of the swing shaft and support the swing shaft are fixed at the inner side of the gap through fastening standard parts, and form a concave-convex side wall structure with the corresponding vertical side wall; at the moment, the outer side concave structural part and the corresponding concave-convex side wall structure are equal to an external side concave structure which is arranged near the matching end on the vertical side wall and is formed by injection molding with the demoulding window and the part in a one-piece mode, and the concave-convex side wall structure formed by the corresponding vertical side wall.

The lock catch piece swings around the swing shaft arranged on the outer side concave structural part to enable the buckle on the lock catch piece to be in clamping fit with the clamping seat structure arranged on the built-in side concave structure on the second component.

The external undercut structure is connected and fixed through fastening standard parts, and can be connected with the parts to form a whole through plastic welding or plastic bonding.

Example 6. In addition to embodiments 1, 2, 3, and 4, the undercut structure may be a single external undercut structure, or a combined undercut structure including the external undercut structure.

This external undercut structure or set up the disjunctor pendulum shaft of connecting the lateral wall or set up and be located double-shaft hole structure (left and right lateral wall respectively sets up relative shaft hole) that double-phase lateral wall just corresponds, wherein:

for the connected pendulum shaft mode, the lock catch piece (single-shaft swinging lock catch device) or the swinging connecting rod structure and the lock catch piece (double-shaft swinging lock catch device) hinged with the lock catch piece (single-shaft swinging lock catch device) swing around the connected pendulum shaft, so that a buckle (or a lock hook or a lock column) on the lock catch piece is movably connected and matched with a corresponding card seat structure (or a lock column or a lock hook) arranged on the second component.

The connected swing shaft can be a fixed shaft (a simply supported beam structure) with two ends respectively connected with the side walls on two sides of the external undercut structure, or a single-arm fixed shaft (a cantilever beam structure) with one end connected with the side wall on one side of the external undercut structure and the other end suspended in the air. On the basis, a fixed shaft with the other end suspended in the air can be arranged on the side wall of the other side of the external undercut structure, the two fixed shafts are coaxial, the suspended ends of the two fixed shafts are opposite, and a gap (into which a torsion spring can be placed) is reserved between the two fixed shafts.

The connected swing shaft mode in the scheme can also be as follows: the lock catch piece or the swing connecting rod structure with the front side (the inserting direction) provided with the shaft sleeve and the swing shaft at the rear side is transversely inserted into the single-arm fixed shaft at one side of the external undercut structure, the swing shaft at the rear side is arranged in the shaft hole structure of the vertical opening and is connected and matched with the internal thread structure through the pressing plate and the screw to be arranged in the shaft hole structure of the combination, and then the swing shaft is limited to be separated from the external undercut structure. The position of the internal thread structure is limited by the position which does not hinder the locking fastener or the swinging connecting rod structure and the locking fastener along the single-arm fixed shaft and the connecting line (swinging axis) of the combined shaft hole structure to transversely move to and swing corresponding to the clamping seat structure on the component II, and the transverse limit is carried out by the pressing plate which is fixedly matched with the internal thread structure.

The preferred mode of the connected swing shaft structure which is hinged and matched with the connected swing shaft and the locking piece is as follows: one end of the swinging connecting rod structure is provided with a shaft hole structure with an elastic contraction opening and is hinged with the connected swinging shaft, and the other end of the swinging connecting rod structure is provided with a mode that the swinging shaft structure is hinged with a locking piece of the shaft hole structure with the elastic contraction opening.

As an improvement, under the premise that the upper control module is connected with the U-shaped filter container bin through the double-shaft swinging locking device to form a whole, the swinging connecting rod structure and the locking piece are provided with a notch orientation (transverse direction) of a shaft hole structure with an elastic contraction notch, and the notch orientation is perpendicular to the vertical direction of the locking piece in the double-shaft swinging locking device in clamping fit with the clamping seat structure.

In the present case, the "shaft hole structure with a vertical elastic contraction gap" (the same applies below) means that the narrowest part of the vertical elastic contraction gap is smaller than the diameter of the shaft hole swing shaft, the swing shaft in hinged fit with the shaft hole is clamped into the gap under the action of external force, and the swing shaft enters the shaft hole structure through the vertical elastic contraction gap by elastic deformation in the contact fit process with the two sides of the gap.

For the double-shaft hole structure mode, the locking piece (single-shaft swinging locking device) or the swinging connecting rod structure and the locking piece (double-shaft swinging locking device) hinged with the swinging connecting rod structure swing around the swinging shafts arranged on the left shaft hole structure and the right shaft hole structure, so that the buckle on the locking piece is movably connected and matched with the corresponding clamping seat structure arranged on the second component.

When this external undercut structure setting is located double-phase relative lateral wall and relative biax pore structure (left and right lateral wall respectively sets up relative shaft hole), the biax pore structure of external undercut structure or for setting up the shaft hole structure of taking vertical elastic shrinkage opening, or for setting up the shaft hole structure of one-way vertical opening and internal thread structure, or for setting up the shaft hole structure of two-way vertical opening, or for one side sets up the shaft hole structure of two-way vertical opening and the combination shaft hole structure that the opposite side set up one-way vertical opening and internal thread structure and constitute, wherein:

for the shaft hole structure with the vertical elastic contraction notch, the vertical elastic contraction notch faces or faces the second component or is opposite to the second component and corresponds to the demoulding window on the first component; the pendulum shaft is clamped into the shaft hole structure along the vertical elastic contraction gap. The vertical elastic contraction gap has a certain limiting function on a pendulum shaft arranged in the shaft hole structure.

The mode is preferably as follows: the vertical elastic contraction notch faces to the opposite direction of the second component and corresponds to the demoulding window on the first component.

For the shaft hole structure provided with the one-way vertical opening and the internal thread structure, the vertical opening is connected and matched with the internal thread structure through the additionally arranged pressing plate and the screw to form a closed shaft hole structure so as to limit the swinging shaft arranged in the vertical opening to be separated from the external undercut structure. When the overhead control module is lifted, the closed shaft hole structure limits the pendulum shaft to be separated from the component, and no vertical displacement exists between the corresponding overhead control module and the U-shaped filter container bin.

The mode is preferably as follows: the orientation of the internal thread structure and the one-way vertical notch which are in threaded connection with the screw face the component II together, so that the assembly of the swing shaft and the connecting piece is facilitated.

As an improvement, an internal thread structure in threaded connection with the screw is connected with the side wall provided with the one-way vertical notch and corresponds to the demoulding window on the component I. The internal thread structure and the one-way vertical gap face the component II together.

In the present case, will set up vertical elastic shrinkage opening and with the clamp plate be connected the shaft hole structure of combination, also regard as "set up one-way vertical opening and with the clamp plate be connected the shaft hole structure of combination".

To the shaft hole structure that sets up two-way vertical opening, the both sides lateral wall of external undercut structure all sets up two sets of shaft hole structures of taking the vertical opening of opposite orientation side by side to with discrete pendulum shaft will arrange in between two sets of shaft hole structures and set up the hasp piece in shaft hole or swing connecting rod structure and two sets of shaft hole structures and concatenate and constitute hinge mechanisms.

The side wall at one end of the swing shaft is provided with a group of shaft hole structures with vertical notches in opposite directions side by side, wherein the adjacent connected bodies of the two vertical notches in opposite directions corresponding to the width of the shaft hole structures form a group of shaft hole structures with vertical notches in opposite directions. Use the overhead control module as part one as an example, one side of external undercut structure sets up vertical opening as the inside wall that is close to the hasp piece at the lateral wall that corresponds a shaft hole structural width part (thickness), and set up the vertical opening of opposite orientation at the lateral wall that corresponds another part of shaft hole structural width (thickness) as the lateral wall of keeping away from the hasp piece, and the vertical opening of two opposite orientations passes through interior, the lateral wall disjunctor, constitute closed a set of shaft hole structure then, the restriction pendulum shaft is separated along vertical direction with part one.

When the upper control module is manufactured, the demoulding window positioned on the upper end surface of the upper control module and the lower part of the upper control module are used as a vertical demoulding space, the external undercut structure, the shaft hole structure with the opposite vertical opening and the upper control module with the demoulding window are subjected to injection moulding together, so that the manufacturing difficulty and the manufacturing cost are reduced, the assembly process is simplified, and the assembly efficiency is improved. On the basis, a lock catch piece (a single-shaft swinging lock catch device) or a swinging connecting rod structure (a double-shaft swinging lock catch device) which is arranged between the two groups of shaft hole structures and is provided with the shaft holes is transversely connected in series with the independent swinging shafts, and the two groups of shaft hole structures with opposite vertical notches are connected in series to form the hinge mechanism.

The mode is preferably as follows: and the inner side wall of the side wall at one end of the pendulum shaft is provided with a vertical notch facing away from the second component and corresponding to the demoulding window on the first component, and the outer side wall of the side wall is provided with a vertical notch facing towards the second component.

In a similar way, when the first component is a U-shaped filter container cabin, the external undercut structure can be molded together with the shaft hole structure with the opposite vertical opening and the U-shaped filter container cabin with the demoulding window.

For the combined shaft hole structure, one side wall of the external undercut structure is provided with a group of shaft hole structures with opposite vertical notches side by side, and the other side wall of the external undercut structure is provided with a one-way vertical notch and an internal thread structure and is connected and matched with the internal thread structure through an additionally arranged pressing plate and a screw to form the combined closed shaft hole structure. The lock catch piece or the swinging connecting rod structure and the lock catch piece which are provided with the connected swing shafts are transversely inserted from the side of a combined closed shaft hole structure, the swing shaft at the front end of the lock catch piece is inserted into the shaft hole structure provided with the bidirectional vertical opening, the swing shaft at the rear end of the lock catch piece is arranged in the shaft hole structure of the vertical opening and is connected and matched with the internal thread structure through the pressing plate and the screw to be arranged in the combined closed shaft hole structure, and then the swing shaft is limited to be separated from the external undercut structure. The position of the internal thread structure is limited by a group of shaft hole structures with opposite directions and provided with vertical openings, which do not hinder the lock catch piece or the swing connecting rod structure and the lock catch piece which are provided with the connected swing shaft, and the connecting line (swing axis) of the combined closed shaft hole structure transversely moves to and corresponds to the swing position of the clamping seat structure on the component II, and is transversely limited by a pressing plate which is fixedly matched with the internal thread structure.

As the preferred mode of this embodiment, the closed shaft hole structure of combination in the combination shaft hole structure adopts the same orientation with screw threaded connection's internal thread structure and one-way vertical gap to face part two, is convenient for then the assembly of pendulum shaft and connecting piece.

Example 7. On the basis of the embodiments 1, 2, 3, 4, 5 and 6, the locking mechanism is formed by the contact and matching of two matching structures respectively arranged on the first part and the swing locking device, so that the swinging of the locking piece is limited, the stability is further improved, and the locking piece is prevented from being disengaged from being clamped and matched with the clamping seat structure; this locking mechanism or contact locking mechanism or lock hook locking mechanism, wherein:

for the contact locking mechanism, when the locking fastener is in clamping fit with the clamping seat structure and the upper control module is fixedly connected with the two parts of the U-shaped filter container cabin, the two matching structures respectively arranged on the first part and the swinging locking device are also in mutual contact fit.

The arrangement of the contact locking mechanism can be a mode (mode one, preferred) that the arrangement of the contact locking mechanism can be a swing shaft and a matching structure which is arranged on the swing locking device and moves, and the arrangement of the component I is provided with a shaft hole structure with a vertical elastic contraction gap facing the component II and the outer side of the fixed matching structure.

The contact locking mechanism can also be arranged in a mode (mode II) that the first component is provided with a shaft hole structure with a vertical elastic contraction gap back to the second component and the inner side of a fixed matching structure.

The lock hook locking mechanism also comprises a lock hook locking mechanism which is formed by a lock hook or a lock column which is arranged on the first part and is used as a matching structure and a lock column or a lock hook which is arranged on the double-shaft swinging locking device and is used as a matching structure, wherein a movable part in the lock column and the lock hook which are movably matched is controlled to be positioned at a movable joint position which is movably matched with the fixed part and corresponds to the reset position of a reset spring by the additionally arranged reset spring; when a lock catch piece of the double-shaft lock catch device is in clamping fit with the card holder structure and the upper control module is connected and fixed with the two parts of the U-shaped filter container bin, the lock catch or the lock column arranged on the part I and the movable joint between the lock column or the lock hook arranged at the rear end of the lock catch piece close to the middle swing shaft or the swing connecting rod structure are matched and correspond to the reset position of the reset spring, and when external force is applied to overcome the resilience force of the reset spring to influence the moving piece in the lock column and the lock hook, the movable piece is moved and corresponds to the deformation position of the reset spring when the movable joint is withdrawn from the fixed piece; the moving part moves and resets under the action of the resilience force of the reset spring after the applied external force is removed.

The lock hook locking mechanism has four basic modes. The first capture mode: when the lock catch piece of the double-shaft locking device is in clamping fit with the clamping seat structure and the upper control module is fixedly connected with the two parts of the U-shaped filter container bin, the lock hook serving as the matching structure of the fixing piece is arranged on the part I, the movable joint between the lock posts serving as the matching structure of the movable piece is arranged at the rear end of the lock catch piece close to the middle swing shaft and corresponds to the reset position of the reset spring which is additionally arranged, the movable piece in the movable lock post and the lock hook is moved under the influence of the resilience force of the spring when external force is applied, the deformation position of the reset spring is corresponding to the deformation position when the movable piece is withdrawn from the movable joint fit with the fixing piece, and the movable piece is moved to reset under the effect of the resilience force of the spring after the applied external force.

Second capture mode (preferred): when the lock catch piece of the double-shaft locking device is in clamping fit with the clamping seat structure and the upper control module is fixedly connected with the two parts of the U-shaped filter container bin, the lock post serving as the matching structure of the fixing piece is arranged on the part I, the movable joint between the lock hooks serving as the matching structure of the movable piece is arranged at the rear end of the lock catch piece close to the middle swing shaft and corresponds to the reset position of the reset spring arranged additionally, the movable piece in the movable lock post and the lock hooks is influenced by the resilience force of the spring when external force is applied, the deformation position of the reset spring corresponds to the movable piece when the movable piece retreats from the movable joint fit with the fixing piece, and the movable piece moves to reset under the effect of the resilience force of the spring after the applied external force is removed and corresponds to the reset.

In addition, for the mode that the middle swing shaft of the swing connecting rod structure hinged with the locking piece is positioned in the middle of the swing connecting rod structure (not far away from the swing shaft and the far end hinged with the swing connecting rod structure), the locking hook locking mechanism is also adopted in two modes (the rear end of the swing connecting rod structure is used for replacing the rear end of the locking piece):

third capture mode: when the lock catch piece of the double-shaft locking device is in clamping fit with the clamping seat structure and the upper control module is fixedly connected with the two parts of the U-shaped filter container cabin, a lock hook serving as a fixed fit structure is arranged on the part I, the rear end of a swing connecting rod structure close to the middle swing shaft is provided with a movable fit between lock posts serving as movable fit structures and a reset position corresponding to a reset spring, a movable part in the movable lock post and the lock hook is influenced by resilience force of the reset spring when external force is applied to overcome the deformation position corresponding to the reset spring when the movable part is withdrawn from the movable fit with the fixed part, and the movable part is withdrawn by the applied external force and then is moved to reset under the effect of the resilience force of the reset spring and corresponds to the reset position of the reset spring.

Fourth capture mode: when the lock catch piece of the double-shaft locking device is in clamping fit with the clamping seat structure and the upper control module is fixedly connected with the two parts of the U-shaped filter container bin, a lock column serving as a fixed fit structure is arranged on the part I, and the rear end of a swing connecting rod structure close to the middle swing shaft is provided with a movable fit between lock hooks serving as a movable fit structure and corresponds to the reset position of a reset spring, and when external force is applied to overcome the influence of resilience force of the reset spring on moving parts between the lock column and the lock hooks to withdraw from the movable fit with the fixed part, the deformation position of the reset spring is corresponding to the deformation position of the reset spring, and after the applied external force is withdrawn, the moving part moves to reset under the effect of the resilience force of the reset spring and corresponds to the reset position of the.

In addition, the structural modes of the first locking mode and the second locking mode of the locking hook locking mechanism are also applicable to the third locking mode and the fourth locking mode.

In the four loose joint matching modes of the lock hook locking mechanism, the movable part and the fixed part in the lock column and the lock hook can be respectively the lock hook and the lock column, and can also be respectively the lock column and the lock hook. On this basis, mobilizable moving part both can set up on the hasp piece and move and reset spring's both ends are used in respectively on moving part and hasp piece along the guide structure that the hasp piece set up. In addition, the movable part can also be arranged on the first part and move along a guide structure (such as a sliding sleeve) arranged on the first part, and two ends of the return spring respectively act on the movable part and the first part.

In the four loose joint matching modes of the lock hook locking mechanism, the return spring can be a return pressure spring, a return tension spring or a return torsion spring, and the movement of the corresponding moving part can be linear movement or swinging. In addition, as a derivative mode of the movable part vertically moving to extrude the reset pressure spring and separating from the loose joint matching mode with the fixed part, a button provided with a cone structure can also be adopted to transversely penetrate through and be exposed out of the locking piece, and external force is transversely applied to the button to ensure that the cone structure positioned at the rear part of the locking piece moves inwards to pull the movable part to move to extrude the reset pressure spring and separate from the loose joint matching with the fixed part; and the movable piece moves under the action of the reset pressure spring after the applied external force is removed, so that the cone structure moves outwards and the button is exposed.

The lock hook locking mechanism is arranged, so that old, young and weak consumers can operate the double-shaft swinging locking device more easily, and the clamping mode of the double-shaft swinging locking device is more stable and reliable.

In this case, as a preferred mode, the movable member and the return spring are disposed in the rear end mechanism of the latch member or the swing link structure near the intermediate swing shaft, and the movable member is vertically operated to move vertically.

Generally, a sliding sleeve built-in movable part with a limit and a return spring are arranged at the rear end of a locking piece or a swinging connecting rod structure close to a middle swinging shaft.

The locking mechanism is also suitable for an outer concave structural member correspondingly matched with a single built-in side concave structure. That is, the fixed matching structure can be arranged in the external undercut structure or in the external undercut structure.

Example 8. On the basis of embodiment 7, the moving part and the return spring are arranged on the double-shaft swinging locking device, and a sliding sleeve with a limit is arranged at the rear end of a locking piece or a swinging connecting rod structure which is arranged near the middle swinging shaft; the demoulding window on the shell of the first component is of an outward U-shaped demoulding window structure and is vertically connected with the side wall of the external undercut structure to form an outer side vertical face of the first component, and then the demoulding window which is originally positioned on the inner side of the vertical side wall is made into a U-shaped demoulding window structure arranged on the vertical side wall; the fixing piece corresponding to the inside of the U-shaped stripping window structure is vertically and correspondingly arranged with the swing shaft on the external undercut structure; after the movable part capable of vertically moving vertically moves to the position that the lower moving edge is disengaged from the loose joint of the fixed part, the fastener on the fastener swings around the swing shaft to disengage from the U-shaped filter liner bin clamping seat structure.

For the mode that the component I is arranged on the upper control module, the moving lower edge corresponding to the deformation position of the return spring is positioned below the upper end (the lock hook or the lock column) of the moving part corresponding to the return position of the return spring. After the movable part capable of vertically moving moves downwards to the position of the lower moving edge and is disengaged from the movable joint of the fixed part, the locking piece or the swinging connecting rod structure swings around the swing shaft, and the buckle on the locking piece is disengaged from the U-shaped filter liner bin clamping seat structure.

For the mode that the first component is arranged on the U-shaped filter container bin, the moving lower edge corresponding to the deformation position of the return spring is positioned above the lower end (a lock hook or a lock column) of the moving part corresponding to the return position of the return spring. After the movable piece capable of vertically moving moves upwards to the position of the moving lower edge and is disengaged from the loose joint of the fixed piece, the locking piece or the swinging connecting rod structure swings around the swing shaft, and the buckle on the locking piece is disengaged from the two clamping seat structures of the component on the upper control module.

In addition, with respect to the structure described in example 5: a gap facing the second component is vertically arranged near the matching end of the vertical side wall of the first component corresponding to the built-in undercut structure; the outer side concave structural parts which are positioned at two sides and support the swing shaft are fixed at the inner side of the gap through fastening standard parts, and form a concave-convex side wall structure with the corresponding vertical side wall. At the moment, the outer side concave structural part and the corresponding concave-convex side wall structure are equal to an external side concave structure which is arranged near the matching end on the vertical side wall and is formed by injection molding with the demoulding window and the part where the demoulding window is located, and the concave-convex side wall structure and the corresponding vertical side wall structure are formed.

On the basis, the demoulding window adopts an outward U-shaped demoulding window structure and is vertically connected with the side wall of the external undercut structure to form an outer side vertical face of the component I, and then the demoulding window which is originally positioned on the inner side of the vertical side wall becomes the U-shaped demoulding window structure arranged on the vertical side wall.

Therefore, the structural mode of the U-shaped release window for the lock hook locking mechanism in this embodiment covers the structural mode of the "outer concave structure" in embodiment 5.

In this embodiment, for the stripping window, the outer side wall close to the outer side vertical surface is removed, and the rest of the stripping window is connected with the side wall of the undercut structure of the located component to form a U-shaped stripping window structure.

The 'demoulding window is an outward opening structure' means that aiming at the arranged lock hook locking mechanism, the loose joint direction of the lock hook locking mechanism is different from the clamping direction of the double-shaft swinging locking device, the demoulding window is used as the outer edge of the window and the outer side wall (outer side vertical surface) correspondingly connected with the outer edge, so that a moving part arranged in a locking piece or a sliding sleeve with a limit arranged at the rear end of the swinging connecting rod structure is conveniently placed in the demoulding window with an opening on the transverse end surface of the shell. The U-shaped stripping window structure is convenient for the moving part in the vertical operation sliding sleeve to move, and the reset pressure spring is extruded and is disengaged from the loose joint matching with the fixed part.

In the scheme, the U-shaped stripping window structure on the first component is a specially designed structure for the lock hook locking mechanism, and belongs to a derivative structure of a stripping window for an external undercut structure. As for the technical scheme that only a U-shaped stripping window structure aiming at the external undercut structure is arranged and a matched locking hook locking mechanism is not arranged, the technical scheme is not in the coverage range of the technical scheme of the embodiment.

Example 9. On the basis of the embodiments 7 and 8, the swing mechanism further comprises swing springs which respectively act between the external undercut structure and the swing connecting rod structure; the locking mechanism is a lock hook locking mechanism; the reset position of the swing spring is close to the clamping seat structure on the second part corresponding to the hinged end of the swing connecting rod structure and the lock catch piece, and the deformation position of the swing spring is far away from the clamping seat structure on the second part corresponding to the hinged end of the swing connecting rod structure and the lock catch piece, wherein when the swing spring is a tension spring, one end of the tension spring acts on the swing connecting rod structure and is positioned near the hinged end of the swing shaft; when the swing spring is a pressure spring, one end of the pressure spring acts on the swing connecting rod structure; when the swing spring is a torsion spring, one end of the torsion spring sleeved on the swing shaft acts on the swing connecting rod structure. The other ends of the three types of swing springs act on the external undercut structure.

When external force is applied, the movable part moves to be disengaged from the movable joint of the fixed part, and the swing spring forces the swing connecting rod structure to swing to a reset position close to the clamping seat structure on the second part from a deformation position far away from the clamping seat structure on the second part around the swing shaft.

The oscillating spring is preferably in a torsion spring mode. The torsion spring is sleeved on the single-arm connected swing shaft or the swing shaft matched with the double-shaft hole structure.

In embodiments 7, 8, and 9, the recessed space structure inside the lock cylinder or the lock hook in the lock hook locking mechanism may be a "recessed space structure" (as shown in fig. 1, a top surface structure; if the corresponding bottom surface of the built-in undercut structure is connected to the card socket structure when the card socket structure is disposed on the upper control module), or a "through recessed space structure" (as shown in fig. 3 and 4), which is described in embodiments 2 and 3, may be connected to the card socket structure corresponding to the end surface of the built-in undercut structure. The clamping seat structures corresponding to the two concave space structure modes are arranged on the built-in side concave structure.

Example 10. On the basis of embodiments 1, 2, 3, 4, 5, 6, 7, 8 and 9, the device further comprises a latch piece resetting mechanism; set up the hasp piece canceling release mechanical system who resets position and deformation position respectively or be used in hasp piece spring between hasp piece and the swing connecting rod structure respectively, or set up the limit structure at two cassette structure inboards of part, wherein:

for the lock catch piece spring, the reset position of the lock catch piece spring corresponds to the swing connecting rod structure and the hinged end of the lock catch piece to be far away from the clamping seat structure on the second component, and the deformation position of the lock catch piece spring corresponds to the swing connecting rod structure and the hinged end of the lock catch piece to be close to the clamping seat structure on the second component. When the bayonet of the locking fastener is disengaged from the clamping fit with the clamping seat structure, the locking fastener swings reversely by means of the locking fastener spring to move back to the reset position and is far away from the clamping seat structure on the component II.

For the limiting structure, the lock catch piece swings around the swing shaft along with the swing connecting rod structure, one end of the buckle of the lock catch piece moves from the position matched with the clamping seat structure to be contacted with the clamping seat structure, exits from the position matched with the clamping seat structure along the limiting structure and is far away from the clamping seat position on the second component.

The lock catch part resetting mechanism has a smaller swing radius in the track of controlling the movement (swinging around the middle swing shaft) of the lock catch part clamping end, so that the basis is provided for the connection position of the built-in undercut structure and the second component, and the clamping and matching of the clamping buckle and the clamping seat structure are easy to separate.

The lock catch element is a spring, a tension spring, a pressure spring or a torsion spring, and preferably a torsion spring mode sleeved on the middle swing shaft.

On the basis of the two modes, the lock catch piece resetting mechanism can also be simultaneously provided with a lock catch piece spring mode and a limiting structure mode.

Example 11. Embodiment 11 is the most preferred embodiment. On the basis of embodiments 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, the fastener is provided with a lifting window structure; the external undercut structure positioned on the vertical side wall of the upper control module is provided with a support structure at the inner side of the lock catch piece and corresponds to the lifting window structure; when the locking fastener is in clamping fit with the clamping seat structure and the upper control module and the U-shaped filter container bin are fixedly connected together, the supporting structure is in contact fit with the lifting window structure positioned below the supporting structure to limit the lifting window structure and the locking fastener to move upwards. The contact fit of the support structure and the lifting window structure is also in a structural mode covered by the contact capture mechanism.

The pendulum shaft which is hinged and matched with the lock catch piece can be arranged on the upper control module and also can be arranged on the U-shaped filter container cabin. No matter the pendulum shaft sets up the unsmooth lateral wall structure on the vertical lateral wall in overhead control module or U type filter courage storehouse, nevertheless the window structure of pulling on the lock catch piece corresponds the bearing structure who arranges unsmooth lateral wall structure on the vertical lateral wall of overhead control module in.

Example 12. On the basis of embodiment 11, the concave-convex side wall structure of the upper control module and the concave-convex side wall structure of the U-shaped filter chamber are arranged in an up-and-down alignment manner or in an up-and-down (large-and-small) staggered manner.

Considering that the respective corresponding ends of the upper control module and the U-shaped filter container bin are correspondingly contacted and matched, the concave-convex side wall structure of the upper control module related to the upper and lower contraposition arrangement or the upper and lower dislocation arrangement mainly refers to an external concave structure (or piece) or an internal side concave structure (or piece) on the upper control module; the unsmooth lateral wall structure in courage storehouse is strained to U type mainly refers to external concave structure spare or built-in undercut structure spare on the courage storehouse is strained to the U type, wherein:

to the mode that upper and lower counterpoint set up, arrange in on the vertical lateral wall of U type filter container storehouse and have the less built-in undercut structure of thickness size, correspond with external undercut structure or the external undercut structure of connecting fixedly in addition and set up the inner chamber that shelters from the machine on arranging the vertical lateral wall of overhead control module in and have the same thickness size.

For the mode of upper and lower dislocation set, arrange in on the vertical lateral wall of U type filter courage storehouse and have the less built-in undercut structure of thickness size, with arrange in on the vertical lateral wall of overhead control module and have the great external undercut structure of thickness size or connect fixed external undercut structure spare in addition and correspond the setting to form the passageway of intercommunication U type filter courage storehouse inner chamber between the rear wall of external undercut structure or external undercut structure spare (also be the vertical lateral wall of overhead control module) and the rear wall of built-in undercut structure.

In the scheme, an upper (large) and lower (small) staggered arrangement mode is adopted between an external undercut structure with a larger thickness and an internal undercut structure with a smaller thickness. And then, a left and a right more spacious lifting spaces are provided for the undercut structures arranged at the left and the right sides of the machine shell so as to lift the overhead control module or the whole machine through the lifting window structure, and the lateral extending structure arranged on the overhead control module shields a channel communicated with the inner cavity of the U-shaped filter container bin, so that the bin opening of the U-shaped filter container bin has a larger size, and the requirement of arranging large-size filter containers side by side is met as far as possible. However, the new problem to be solved is that the channel formed by the mode of 'upper and lower dislocation arrangement' and communicated with the inner cavity of the U-shaped filter container bin is easy to cause the inner cavity of the U-shaped filter container bin to be polluted by environment and insect pests, and is particularly more important for the inner cavity of the U-shaped filter container bin used as a concentrated water drainage water storage tank for storing and draining concentrated water.

On the basis, for the undercut structures (movable covers) arranged at the front side and the rear side or the undercut structures (turnover covers) arranged at the front side, only the size of a large bin opening is considered (such as the requirement of side-by-side arrangement of large-size filter liners is met), and the upper control module external undercut structure and the U-shaped filter liner bin internal undercut structure can be arranged in an up-and-down alignment manner.

For a channel which is formed by the upper and lower staggered arrangement and is communicated with the inner cavity of the U-shaped filter container bin, a baffle can be additionally arranged to shield the channel in a connecting and matching way with a transverse window structure arranged at the lower end of the vertical side wall at the inner side (the back of the lock catch piece, the lower part of the lock catch piece) of the lock catch piece.

The baffle plate can be movably connected and matched with the external undercut structure or the external undercut structural part into a whole through a slot structure or a fastening standard part or in elastic interference fit to shield a channel leading to the U-shaped filter container cabin. The baffle plate can also be connected and matched with the external undercut structure or the external undercut structural part through plastic welding or plastic bonding to form a whole and shield a channel leading to the U-shaped filter container cabin.

The transverse window structure is formed by combining a notch arranged at the lower end of the vertical side wall of the upper module and the upper end of the vertical side wall of the U-shaped filter container cabin, or a notch arranged at the upper end of the vertical side wall of the U-shaped filter container cabin and the lower end of the vertical side wall of the upper module, or a notch arranged at the lower end of the vertical side wall of the upper module and a notch arranged at the upper end of the vertical side wall of the U-shaped filter container cabin respectively.

The structure of the above embodiments will be described with reference to fig. 1 and 2. FIG. 1 is a longitudinal section diagram of a structure formed by an external undercut structure, a U-shaped stripping window, a connected single-arm swing shaft, a swing connecting rod structure with a notch shaft hole structure and a middle swing shaft, a locking piece with a sliding sleeve internal moving part with a limit position and a return spring, and an upper control module of a swing hook locking mechanism, which are in contact fit with the upper part and the lower part of a U-shaped filter container cabin with an internal undercut structure and a clamping seat structure, a window frame and a stripping window and are connected into a whole by a double-shaft swing locking device.

In fig. 1, a plurality of clamping structures 71 with built-in undercuts 7 are arranged on the side wall 21 of the U-shaped filter container bin 2. The upper end surface of the clamping seat structure 71 of the built-in undercut 7 corresponds to the upward matching end 3 of the side wall 21 of the U-shaped filter container bin 2, and can be on the same horizontal line, and can be lower or higher than the matching end 3. The external undercut structure 4 on the upper control module is corresponding to the internal undercut 7 on the U-shaped filter chamber 2 up and down. The bottom of the U-shaped filter container bin 2 is provided with a stripping window 8 corresponding to the built-in undercut 7.

A gap 81 communicated with the inner cavity of the U-shaped filter container cabin is arranged at the joint of the built-in undercut 7 and the vicinity of the matching end 3 of the side wall 21 of the U-shaped filter container cabin 2. The cross section of the gap 81 may be a circular arc cross section, a transverse straight cross section, or other cross section. The demoulding window 8 directly corresponds to the clamping seat structure 71, the concave space structure 72 corresponding to the clamping seat structure connected with the top surface of the built-in side concave structure and the swing space structure 74 below the clamping seat structure 71 through the opening 81, and is formed by injection molding together.

The vertical side wall 11 of the overhead control module 1 is provided with a plurality of external undercut structures 4. The left and right side walls of the external undercut structure 4 are provided with a one-piece single-arm swing shaft 41. The space 42 between the free ends of the two single-arm swing shafts 41 is used for being sleeved with the torsion spring 94. One end of the swinging connecting rod structure 5 is provided with a shaft hole structure 51 with an elastic contraction opening and hinged with the connected swinging shaft 41, and the other end is provided with a middle swinging shaft 52 and hinged with a locking piece 6 provided with a shaft hole structure 61 with an elastic contraction opening. The opening orientation (horizontal) of the 'shaft hole structure with elastic contraction opening' of the swing connecting rod structure 5 and the locking piece 6 is perpendicular to the vertical direction of the clamping fit of the locking piece 6 and the clamping seat structure 71 in the double-shaft swing locking device.

The rear end (the extending end where the middle swing shaft 52 is matched) of the locking piece 6 is provided with a sliding sleeve 63 with a limit. The movable member 9 and the return spring 93 are disposed in the sliding sleeve 63, and the outward extending locking hook 91 is correspondingly engaged with the fixing member 92 for locking. In addition, the catch member 6 may be provided with a lift window structure 65. The overhead control module 1 and the U-shaped bladder filter 2 connected thereto are lifted by the lifting window structure 65. At this point, the catch member 6 bears the full weight of the water machine.

In order to facilitate the operation of the lock hook locking mechanism, the demoulding window 8 is reformed on a component shell corresponding to the moving part on the double-shaft swinging locking device: removing the outer edge (edge) 84 and the corresponding side wall 11 which are close to one side of the outer side wall of the shell, and then enabling the demoulding window 8 which is originally positioned on the inner side of the vertical side wall 11 to be a U-shaped demoulding window structure 8a which is arranged on the vertical side wall 11; the fixing piece 92 corresponding to the U-shaped stripping window structure 8a is vertically arranged corresponding to the swing shaft 41 on the external undercut structure 4; after the vertically movable moving piece 9 vertically moves downwards until the moving lower edge 64 is disengaged from the movable joint of the fixed piece 92, the buckle 62 on the locking piece 6 which swings around the swing shaft 41 is disengaged from the clamping seat structure 71 of the U-shaped filter container cabin 2.

As an improvement, the fixing element 92 in the U-shaped demoulding window structure 8a, the concave space structure 72 for placing the outward extending locking hook 91 of the movable element 9 and the swing shaft 41 on the external concave structure 4 are vertically arranged in a staggered manner, so that the U-shaped demoulding window structure 8a, the fixing element 92, the concave space structure 72, the external concave structure 4, the connected swing shaft 41 (or a double-shaft hole structure) and the supporting structure 12 are connected with the upper control module by injection molding, and the position of the sliding sleeve 63 is reserved outside the fixing element 92.

The downward matching end 3 of the side wall 11 of the upper control module 1 is in direct contact fit with the upward matching end 3 of the side wall 2 of the U-shaped filter container bin.

The external undercut structure 4 or external undercut structural member on the upper control module 1 has a larger thickness dimension so as to provide a more spacious lifting space for the inner (inside) side of the lifting window structure. When the baffle plate 14 is adopted to shield the U-shaped filter container, the baffle plate 14 is connected and matched with the external undercut structure or the external undercut structural member into a whole through a fastening standard member or plastic welding or plastic bonding or elastic interference fit, and shields a channel leading to the U-shaped filter container bin.

The built-in undercut structure 7 of 21 on the vertical lateral wall of U type filter container storehouse 2 has less thickness dimension, enlarges the size of 2 ports in U type filter container storehouse to in place the filter container of great size.

Swing connecting rod structure 5 one end is around pendulum shaft 41 forward swing (being close to cassette structure 71), and the other end drives rather than articulated hasp piece 6 (pivoting) swing to make buckle 62 and the cassette structure 71 contact on the U type filter chamber of the other end on the hasp piece 6, drive hasp piece 6 reverse swing (pivoting) and keep buckle 62 and cassette structure 71 contact fit with pendulum shaft 41 reverse swing with swing connecting rod structure 5 again, then be connected fixedly together with two parts in U type filter chamber 2 overhead control module 1.

A limiting structure is arranged in an inwards concave space structure 72 of a built-in side concave structure 7 on a vertical side wall 21 of the U-shaped filter container cabin 2 and used for controlling a lock catch part resetting mechanism adopting the limiting structure, and the lock catch part swings around a swing shaft along with a swing connecting rod structure to move the track of one end of a buckle of the swing connecting rod structure. On the basis, the rear side wall 73 (also the rear side wall of the concave space structure) with the built-in undercut structure can be set to be a limiting structure, and then the size of the U-shaped filter container bin port is enlarged, so that a filter container with a larger size can be placed conveniently.

The swinging connecting rod structure 5 swings around the swinging shaft 41 in the positive direction to drive the buckle 62 on the locking piece 6 to be disengaged from the clamping fit with the clamping seat structure 71 on the U-shaped filter container cabin, so that the overhead control module 1 can be opened and the overhead control module can be lifted.

As a first mode of the clamping fit between the latch member 6 of the overhead control module and the clamping seat structure 71 on the U-shaped filter container, the lower end of the latch member 6 in the assembled state can be fastened 62 lower than the lower end (the mating end 3) of the vertical side wall 11 of the overhead control module, as shown in fig. 1: the upper end surface of the card socket structure 71 is arranged horizontally with the mating end 3. And a second mode: the lower end of the buckle 62 may also be on the same horizontal line with the lower end (mating end 3) of the vertical side wall 11 of the overhead control module. And a third mode: the lower end of the catch 62 may also be located above the lower end (mating end 3) of the overhead control module vertical side wall 11. In the second and third modes, the upper end surface of the clamping seat structure 71 of the U-shaped filter container bin is higher than the upward matching end 3 of the vertical side wall 21. In addition, the upper end surface of the clamping seat structure 71 of the U-shaped filter container bin can be arranged lower than the matching end 3.

As a modification, the locking piece 6 is provided with a lifting window structure 65; the external undercut structure 4 on the vertical side wall 11 of the overhead control module 1 is provided with a support structure 12 on the inner side of the locking piece 6 and corresponds to the lifting window structure 65; when the locking fastener 6 is in clamping fit with the clamping seat structure 71 and the upper control module 1 and the U-shaped filter chamber 2 are connected and fixed together, the supporting structure 12 is in contact fit with the lifting window structure 65 located below the supporting structure, and the lifting window structure 65 and the locking fastener 6 located on the supporting structure are limited to move upwards. The contacting engagement of the support structure 12 with the lift window structure 65 is also in the mode of construction covered by the contact capture mechanism.

In the same way, for the structural modes of the first component and the second component, namely the U-shaped filter container bin 2 and the overhead control module 1, the external side concave part 4 of the swing shaft and the locking fastener is arranged or is connected with the vertical side wall 21 of the U-shaped filter container bin 2 into a whole through a fastening standard part or plastic welding or plastic bonding. The lock catch piece 6 is arranged on the U-shaped filter container bin 2, a built-in undercut structure or a built-in undercut structural member (discrete member) provided with a clamping seat structure 71 and an undercut spatial structure 72 is arranged on the upper control module 1, and a swing passage required by the lock catch piece swinging around a swing shaft and clamping and matching with the clamping seat structure is arranged.

For the overhead control module with a low height, the clamping seat structure 71 may be disposed at the lower part of the vertical side wall of the overhead control module 1, or the clamping seat structure 71 may be disposed on the upper end surface of the casing of the overhead control module 1 and the side wall 11 of the overhead control module 1 may be vertically disposed to be a through concave-convex side wall structure. When the locking fastener 6 is in clamping fit with the clamping seat structure 71 and connects and fixes the upper control module 1 and the U-shaped filter container 2 together, the outer side surface of the locking fastener 6 and the outer vertical surfaces of the vertical side walls of the upper control module 1 and the U-shaped filter container 2 are positioned on the same vertical surface.

In addition, on the basis of fig. 1, the double-shaft swing locking device in fig. 1 can be changed into a simple single-shaft swing locking device. On this basis, the pendulum shaft and the locking piece of the single-shaft swinging locking device can also be arranged on the U-shaped filter container bin 2.

FIG. 2 is a schematic top view of the overhead control module of the present invention using the structure of FIG. 1. In fig. 2, the upper control module 1 is provided with an operation display interface 13. The part enclosed by the dotted line in the figure is a U-shaped stripping window structure 8a in the sliding sleeve 63 with a limit inside. The U-shaped stripping window structure 8a is connected with the side wall of the external undercut structure 4 to form an outer side wall (outer vertical surface) 11 of the first component, so that the stripping window 8 (see the stripping window 8 in fig. 1) originally positioned on the inner side of the vertical side wall becomes the U-shaped stripping window structure 8a arranged on the vertical side wall 11. The sliding sleeve 63 with the built-in moving piece 9 with the locking hook 91 has a moving lower edge 64 arranged on the outer edge.

FIG. 3 is a schematic longitudinal cross-sectional view of the present invention in the form of a combination of the structure of FIG. 1 and a window frame. In fig. 3, a window frame 82 having a circular arc cross section (or a horizontal straight cross section) is provided at a joint between the inner undercut 7 and the vicinity of the mating end 3 of the side wall 21 of the U-shaped bladder chamber 2. The window of the window frame 82 is communicated with the inner cavity of the U-shaped filter container cabin, and the periphery of the window shields the inner cavity of the U-shaped filter container cabin. The window frame 82 corresponds to the upper cassette structure 71, the concave space structure 72a as the concave space structure 72 and penetrating up and down, and the lower stripping window 8, respectively. The built-in clamping seat structure 71 and the built-in undercut 7 of the through concave space structure 72a are injection molded together with the U-shaped filter container bin 2 through the stripping window 8 and the window frame 82, and the position of a locking fastener is reserved on the outer side of the clamping seat structure 71. The through concave space structure 72a disposed inside the cartridge structure or the swing shaft vertically corresponds to the rear side of the window frame 82 in the vertical stripping direction. And the penetrating concave space structure 72a corresponding to the rear side part of the window frame 82 is stripped upwards along the vertical stripping direction, so that the injection molding of the penetrating concave space structure 72a is realized.

FIG. 4 is a longitudinal sectional view of the combined structure of the structure of FIG. 1 and the shielding structure according to the present invention. In fig. 4, a shielding structure 83 is arranged at the joint of the built-in undercut 7 and the vicinity of the mating end 3 of the side wall 21 of the U-shaped filter container 2 to shield the inner cavity of the U-shaped filter container 2. A swing space structure 74 is arranged between the shielding structure 83 and the clamping seat structure 71; during the injection molding of the undercut structure with the release window and the component in which it is located, the swing space structure 74 is formed by a transverse ribbing process mode perpendicular to the vertical release direction.

As an improvement of the above embodiments, in order to increase the aesthetic feeling, four corners of the upper control module and the U-shaped bladder chamber are configured to be circular arc structures, and 1 to 4 closed decoration bands 15 with certain width and height are arranged at the periphery of the upper end face of the upper control module, and the width of the decoration band 15 corresponds to the contour of the sliding sleeve 63 and the movable member 9. In order to enhance the rigidity of the top cover, one or two or all of the 1-4 decorative strip combined structures can be arranged into a decorative groove structure so as to form two parallel reinforcing ribs. In addition, the combination structure of 1-4 decorative belts 15 can be provided with a slant or U-shaped or n-shaped decorative belt combination structure.

As an improvement of the above embodiments, a control panel is disposed on the upper end face of the upper control module, and the control panel is used to shield a demoulding window (non-U-shaped demoulding window structure) which is located inside the vertical side wall and is closed.

As an improvement of the above embodiments, handles are arranged on the left side and the right side of the upper control module.

In the above embodiments 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10, when the control unit on the upper control module is a combination of the water passing control unit and the electric control unit, the water passing pipeline connects the multiple filter bladders and the water passing control unit to form the upper and lower double-layer filtering channels. The water passing pipeline on the upper control module is in contact fit with the water passing pipeline on the U-shaped filter liner bin along with the upper part and the lower part so as to be mutually sealed and inserted. The pipe pressure of tap water in the water passing pipeline is borne between the upper control module and the U-shaped filter container cabin, and then the upper control module pushes the upper control module upwards to move upwards, so that the upper control module is forced to be separated from the U-shaped filter container cabin. In addition. The swing locking device connects the upper control module and the U-shaped filter container bin into a whole, and for the upper control module provided with the lifting handle, the locking piece in the upper lifting machine is required to bear the weight of the U-shaped filter container bin filled with tap water in the filter water channel.

The swing locking device is characterized in that the swing locking device is arranged on the swing shaft and the clamping seat structure and comprises a stress action line (single swing locking device) between two action points through control of the swing shaft and the clamping seat structure, or the swing shaft is controlled, a swing connecting rod structure and a non-fixed middle swing shaft (hinged structure) hinged with a locking piece, and the stress action line (double swing locking device) between three action points of the clamping seat structure ensures that the locking piece and the clamping seat structure are stably clamped, the clamping matching stability between the locking piece and the clamping seat structure can be enhanced through a locking mechanism, and then the clamping matching between the locking piece and the clamping seat structure is safer when the acting force of the U-shaped filter liner bin and the control module arranged on the large separation is borne.

To setting up the shaft hole structure of taking vertical elastic shrinkage opening, or setting up the shaft hole structure of one-way vertical opening, can also bear the pipe pressure of running water in the water pipeline in upper and lower double-deck filtration passageway through the locking mechanism, restriction pendulum shaft and part one separation then.

In the above embodiments, the following three structural modes are adopted in the filtering channel connecting the filter container:

first filter channel connection mode:

the upper control module of the water purifier is provided with a water passing control part and a water passing pipeline communicated with the water passing control part and a downward upper butt joint water gap; the two-nozzle filter liner is provided with two upward filter liners which are butted with the nozzles downwards; when the upper control module is in upper and lower contact fit with the U-shaped filter liner bin, the upward downward butt joint water gap of the filter liner is in mutual sealing butt joint with the downward upward upper plug-in water gap of the upper control module. Namely:

the upper part of the filter liner shell is provided with a filter liner with a 'two-way water feeding port' structure, and the filter liner shell is provided with a fastening device at the lower part thereof and is fixedly connected with the U-shaped filter liner bin to form a whole. The two upward downward butt joint water gaps of the filter liner are hermetically connected with the downward upward butt joint water gap of the upper control module and the water passing pipeline to form a movable water passing pipeline of the filter channel.

Second filter channel connection mode:

the upper control module of the water purifier is provided with a downward upper butt joint water gap and a water passing pipeline; an upward downward butt joint water gap and a water passing pipeline are arranged on the bottom surface of the U-shaped filter liner bin; the filter liner is respectively provided with an upward lower butt joint water gap and a downward upper butt joint water gap (namely a non-return water gap); after the filter liner is fixed on the bottom surface of the U-shaped filter liner bin through the fixing device, the downward upper butt joint water gap of the filter liner is in sealed butt joint with the upward lower plug joint water gap and the water passing pipeline of the bottom surface of the U-shaped filter liner bin; when the upper control module is in upper and lower contact fit with the U-shaped filter liner bin, the upward downward butt joint water gap of the filter liner and the downward upward upper plug-in water gap of the upper control module are mutually in sealed butt joint to form a movable water passing pipeline of the filter channel.

In this embodiment, the two structural modes of the liner water gap ("two upward water gaps" and "different direction water gaps") are both regarded as structural modes of the liner water gap covered by structural modes of "the liner in the filtering channel is partially or completely hermetically connected with the downward upward butt water gap of the upper control module and the water passing pipeline connected with the water passing control component through the downward butt water gap arranged at the upper part to form a loose water passing pipeline of the filtering channel".

Third filtration channel connection mode:

the filter liner connected in the filter channel comprises a filter liner with two water ports in the same direction, and is fixedly connected with the U-shaped filter liner bin to form a whole through a fastening device arranged near the two water ports in the same direction. The two equidirectional water ports of the filter liner belong to two downward upward butt joint water ports, are in sealed butt joint with the upward downward butt joint water port on the bottom surface of the U-shaped filter liner bin and are connected through a water pipeline on the bottom surface of the U-shaped filter liner bin to form a filter channel.

The water flow line may be provided on the overhead control module, on the bottom surface of the overhead control module and the U-shaped filter cartridge, or on the bottom surface of the U-shaped filter cartridge, respectively, with reference to the three filter channel connection modes (the filter cartridge is regarded as the water flow line). When the first and second filtering channel connection modes are adopted, the water passing pipeline connecting the upper and lower butted water openings is a movable water passing pipeline.

The water passing control component can be arranged on the upper control module, or on the bottom surface of the U-shaped filter container bin, or on the bottom surfaces of the upper control module and the U-shaped filter container bin respectively according to the actual control requirements of each component.

For the three-nozzle filter liner, such as a reverse osmosis membrane or a nanofiltration membrane filter liner, it can be considered that a nozzle is additionally arranged on the basis of a 'two-way water feeding nozzle' or a 'non-return nozzle' in the first and second filter channel connection modes, or that a nozzle is additionally arranged on the basis of a two-way water feeding nozzle in the third filter channel connection mode.

When the first and second filtering channel connection modes are adopted, the double-shaft swinging locking device bears the water passing pressure in the water passing pipeline movably connected between the upper control module and the U-shaped filtering liner bin.

In the above embodiments, the upper control module may be a base structure provided with the water passing pipeline and the upper docking nozzle, or a base structure not provided with the water passing pipeline and the upper docking nozzle.

In the above embodiments, the movable connection device for the upper control module to cooperate with the lower water-collecting type filter chamber to form an integral body, or the swing locking device (single-shaft swing locking device or double-shaft swing locking device), or the locking hook device, or the elastic locking device, or the device with a rotary clamping structure, or the device with a thread structure, all belong to the prior art in the field.

Claims (10)

1. A water purifier adopting a loose joint device to connect an overhead control module and a U-shaped filter container cabin comprises a filter container, a water passing control part, a water passing pipeline, an overhead control module, a U-shaped filter container cabin and a swing locking device, wherein the overhead control module is used for placing the control part and arranging a downward matching end on a vertical side wall; the control component or the electric control component or the combined device of the water passing control component and the electric control component; the water passing pipeline is connected with a plurality of filter liners and a water passing control component to form a filter channel; the upper control module is arranged above the filter liner in the U-shaped filter liner bin and is in contact fit with the U-shaped filter liner bin, and the upper control module and the U-shaped filter liner bin are connected into a whole through a swinging locking device; the swing locking device swinging along the longitudinal direction is a single-shaft swing locking device provided with a swing shaft, a locking piece with a buckle and a clamping seat structure, or a swing shaft, a swing connecting rod structure swinging around the swing shaft and a double-shaft swing locking device hinged with the swing connecting rod structure through a middle swing shaft and provided with the locking piece with the buckle and the clamping seat structure; the device is characterized by also comprising an undercut structure corresponding to the swing locking device and a stripping window which is arranged on a part shell of the undercut structure along the vertical direction and is correspondingly arranged on the part shell; the demoulding window vertically corresponds to the clamping seat structure or the swing shaft and the concave space structure positioned on the inner side of the clamping seat structure or the swing shaft; the side concave structure is arranged near the matching end on the vertical side wall and forms a concave-convex side wall structure with the corresponding vertical side wall, and is formed by injection molding with the demoulding window, the concave-convex space structure and the part where the concave-convex space structure is positioned, or an external side concave structure which supports the swing shaft and the lock catch piece and is positioned on the first part, or an internal side concave structure which supports the card holder structure and is positioned on the second part, or a combined side concave structure which is formed by combining the external side concave structure which supports the swing shaft and the lock catch piece and is positioned on the first part and the internal side concave structure which supports the card holder structure and is positioned on the second part; the lock catch piece on the first component swings around the swing shaft, so that the buckle on the lock catch piece is clamped and matched with the clamping seat structure on the second component, and the upper control module and the U-shaped filter liner bin are connected into a whole; the buckle which is separated from the locking piece can be opened and the overhead control module can be lifted.

2. The water purifier adopting the loose joint device to connect the overhead control module and the U-shaped filter container bin as claimed in claim 1, wherein the undercut structure is provided with an undercut connecting structure at the joint with the vertical side wall; this undercut connection structure or window frame or shelter from the structure, wherein to the window frame, the inner chamber of part at this window frame part shelters from: the demoulding window on the part shell where the window frame is located vertically corresponds to the clamping seat structure or the swing shaft through the window frame, and the concave space structure arranged on the inner side of the clamping seat structure or the swing shaft is a through concave space structure and vertically corresponds to the rear side of the window frame along the vertical demoulding direction; to sheltering from the structure, should shelter from the inner chamber of structure sheltering from the part and respectively with the vertical correspondence of demoulding window and cassette structure or pendulum shaft on the part casing at place: the concave space structure arranged on the inner side of the clamping seat structure or the swing shaft is a through concave space structure and corresponds to the shielding structure along the vertical demoulding direction, a swing space structure is arranged between the shielding structure and the clamping seat structure or the swing shaft, and in the process of injection molding of the side concave structure, the demoulding window and the part where the side concave structure is connected, the swing space structure is formed through a transverse rib drawing mode perpendicular to the vertical demoulding direction.

3. The water purifier adopting the loose joint device to connect the overhead control module and the U-shaped filter container bin as claimed in claim 1 or 2, further comprising a sealing cover; the sealing cover corresponds to the demoulding window or the window frame or corresponds to the demoulding window and the window frame respectively; the sealing cover is connected with the component where the demoulding window is positioned into a whole and seals the demoulding window or the window frame through a fastening standard component or plastic welding or plastic bonding or elastic extrusion of a rubber body.

4. The water purifier adopting the loose joint device to connect the overhead control module and the U-shaped filter chamber as claimed in claim 1 or 2, further comprising an external undercut structure member for supporting the swing shaft; the undercut structure is a single built-in undercut structure; a gap facing the second component is vertically arranged near the matching end of the vertical side wall of the first component corresponding to the built-in undercut structure; the external undercut structure for supporting the pendulum shaft is fixed on the inner side of the opening through a fastening standard part or plastic welding or plastic bonding, and forms a concave-convex side wall structure with the corresponding vertical side wall; the lock catch piece swings around the swing shaft arranged on the outer side concave structural part to enable the buckle on the lock catch piece to be in clamping fit with the clamping seat structure arranged on the built-in side concave structure on the second component.

5. The water purifier adopting the loose joint device to connect the upper control module and the U-shaped filter container bin as claimed in claim 1 or 2, wherein the undercut structure is either a single external undercut structure or a combined undercut structure including the external undercut structure; the external undercut structure or the conjoined pendulum shaft connected with the side wall is arranged, and the lock catch piece or the swinging connecting rod structure and the lock catch piece swing around the conjoined pendulum shaft to enable the buckle to be in loose joint fit with the corresponding cassette structure, or the two-shaft hole structure which is positioned on the two opposite side walls and corresponds to the two-shaft hole structure is arranged, and the lock catch piece or the swinging connecting rod structure and the lock catch piece swing around the pendulum shaft arranged on the shaft hole structures on the two sides to enable the buckle on the lock catch piece to be in loose joint fit with the corresponding cassette structure, the two-shaft hole structure is either a shaft hole structure provided with a vertical elastic contraction opening, or a shaft hole structure provided with a one-way vertical opening and an internal thread structure, or a shaft hole structure provided with a two-way vertical opening, or a combined shaft hole structure formed by a one-way vertical opening and an internal thread structure, wherein for the shaft hole structure provided with a vertical, the vertical elastic contraction notch faces or faces the second component or is opposite to the second component and corresponds to the demoulding window on the first component, and the pendulum shaft is clamped into the shaft hole structure along the vertical elastic contraction notch; for the shaft hole structure provided with the one-way vertical gap and the internal thread structure, the vertical gap is connected and matched with the internal thread structure through an additional pressing plate and a screw to form a closed shaft hole structure so as to limit the separation of the swing shaft arranged in the shaft hole structure and the external undercut structure; for the shaft hole structure provided with the bidirectional vertical notch, two groups of shaft hole structures with opposite vertical notches are arranged on the side walls of the two sides of the external undercut structure side by side, and a lock catch piece or a swinging connecting rod structure which is arranged between the two groups of shaft hole structures and is provided with a shaft hole is connected with the two groups of shaft hole structures in series by a separate swinging shaft to form a hinge mechanism; to combination shaft hole structure, one side lateral wall of external undercut structure sets up a set of shaft hole structure of taking the vertical opening of opposite orientation side by side, the opposite side lateral wall of external undercut structure sets up one-way vertical opening and internal thread structure and constitutes closed shaft hole structure through the clamp plate and the screw of establishing in addition and internal thread structural connection cooperation, the hasp piece or the swing connecting rod structure that set up the disjunctor pendulum shaft violently insert along the pendulum shaft axis, the front end pendulum shaft inserts the shaft hole structure that sets up two-way vertical opening, the rear end pendulum shaft is arranged in the shaft hole structure of taking vertical opening and is connected the cooperation through clamp plate and screw and internal thread structure, restriction pendulum shaft and external undercut structural separation then.

6. The water purifier adopting the loose joint device to connect the overhead control module and the U-shaped filter cartridge chamber as claimed in claim 5, further comprising a locking mechanism for limiting the swing of the locking member by contacting and matching two matching structures respectively arranged on the first component and the swing locking device, so as to prevent the locking member from disengaging from the clamping and matching with the clamping seat structure; the locking mechanism is either a contact locking mechanism or a lock hook locking mechanism, wherein for the contact locking mechanism, when a lock fastener is clamped and matched with the clamping seat structure and the upper control module and the two parts of the U-shaped filter liner bin are connected and fixed together, two matching structures respectively arranged on the first part and the swinging locking device are also in mutual contact and matching; the lock hook locking mechanism also comprises a lock hook locking mechanism which is formed by a lock hook or a lock column which is arranged on the first part and is used as a matching structure and a lock column or a lock hook which is arranged on the double-shaft swinging locking device and is used as a matching structure, wherein a movable part in the lock column and the lock hook which are movably matched is controlled to be positioned at a movable joint position which is movably matched with the fixed part and corresponds to the reset position of a reset spring by the additionally arranged reset spring, and the movable joint direction of the lock hook locking mechanism is different from the clamping direction of the double-shaft swinging locking device; when a lock catch piece of the double-shaft lock catch device is in clamping fit with the card holder structure and the upper control module is connected and fixed with the two parts of the U-shaped filter container bin, the lock catch or the lock column arranged on the part I and the movable joint between the lock column or the lock hook arranged at the rear end of the lock catch piece close to the middle swing shaft or the swing connecting rod structure are matched and correspond to the reset position of the reset spring, and when external force is applied to overcome the resilience force of the reset spring to influence the moving piece in the lock column and the lock hook, the movable piece is moved and corresponds to the deformation position of the reset spring when the movable joint is withdrawn from the fixed piece; the moving part moves and resets under the action of the resilience force of the reset spring after the applied external force is removed.

7. The water purifier adopting the loose joint device to connect the overhead control module and the U-shaped liner bin as claimed in claim 6, wherein the moving part and the return spring are arranged on the double-shaft swinging locking device and are arranged in a sliding sleeve with a limit at the rear end of the locking piece or the swinging connecting rod structure; the demoulding window on the shell of the first component is of an outward U-shaped demoulding window structure and is vertically connected with the side wall of the external undercut structure to form an outer side vertical face of the first component, and then the demoulding window which is originally positioned on the inner side of the vertical side wall is made into a U-shaped demoulding window structure arranged on the vertical side wall; the fixing piece corresponding to the inside of the U-shaped stripping window structure is vertically and correspondingly arranged with the swing shaft on the external undercut structure; after the movable part capable of vertically moving vertically moves to the position that the lower moving edge is disengaged from the loose joint of the fixed part, the fastener on the fastener swings around the swing shaft to disengage from the U-shaped filter liner bin clamping seat structure.

8. The water purifier adopting the loose joint device to connect the overhead control module and the U-shaped filter chamber as claimed in claim 6 or 7, further comprising swing springs respectively acting between the external undercut structure and the swing link structure; the locking mechanism is a lock hook locking mechanism; the reset position of the swing spring corresponds to the hinged end of the swing connecting rod structure and the lock catch piece close to the clamping seat structure on the second part, and the deformation position of the swing spring corresponds to the hinged end of the swing connecting rod structure and the lock catch piece far away from the clamping seat structure on the second part.

9. The water purifier adopting the loose joint device to connect the overhead control module and the U-shaped filter chamber as claimed in claim 1, 2, 6 or 7, further comprising a lock catch piece resetting mechanism; the reset mechanism of the locking part is respectively provided with a reset position and a deformation position, or the locking part is respectively acted on a locking part spring between the locking part and the swing connecting rod structure, or the limiting structure is arranged at the inner side of the second clamping seat structure of the component, wherein for the locking part spring, the reset position of the locking part spring is far away from the clamping seat structure on the second component corresponding to the hinged end of the swing connecting rod structure and the locking part, and the deformation position of the locking part spring is close to the clamping seat structure on the second component corresponding to the hinged end of the swing connecting rod structure and the locking part; for the limiting structure, the lock catch piece swings around the swing shaft along with the swing connecting rod structure, one end of the buckle of the lock catch piece moves from the position matched with the clamping seat structure to be contacted with the clamping seat structure, exits from the position matched with the clamping seat structure along the limiting structure and is far away from the clamping seat position on the second component.

10. The water purifier adopting the loose joint device to connect the overhead control module and the U-shaped filter chamber as claimed in claim 1, 2, 6 or 7, further comprising a support structure; the lock catch piece is provided with a lifting window structure; the supporting structure is arranged on the inner side of the lock catch piece in the external undercut structure on the vertical side wall of the upper control module and corresponds to the lifting window structure; when the locking fastener is in clamping fit with the clamping seat structure and the upper control module and the two parts of the U-shaped filter container bin are connected and fixed together, the supporting structure is in contact fit with the lifting window structure positioned below the supporting structure to limit the lifting window structure and the locking fastener to move upwards.

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