CN116474453A - Filter element connection mounting structure and pure water machine thereof - Google Patents

Abstract

The invention relates to a filter element connecting and mounting structure, which comprises a connecting seat and a rotating seat which is located in a cavity of the connecting seat and can horizontally rotate relative to the connecting seat, wherein the lower end part of a filter element can be inserted into an upper port of the cavity, a plurality of connecting columns which are the same as the interfaces of the filter element and can be inserted into corresponding interfaces of the filter element are arranged on the upper surface of the rotating seat, axial channels are formed in each connecting column, a plurality of radial channels which are the same as the interfaces of the filter element and are communicated with the axial channels on the corresponding connecting columns are formed in the rotating seat, water flow channels corresponding to the radial channels are formed in the connecting seat, a first sealing ring which is in contact fit with the peripheral surface of the rotating seat is arranged on the inner end surface of each water flow channel, and when the rotating seat rotates relative to the connecting seat, the radial channels on the rotating seat are communicated with or misplaced with the corresponding water flow channels on the connecting seat. Meanwhile, the water purifier with the filter element connection and installation structure is also disclosed, so that the filter element of the water purifier is easy to install and has good sealing performance.

Description

Filter element connection mounting structure and pure water machine thereof

Technical Field

The invention relates to the technical field of purified water machines, in particular to a purified water machine with a filter element connecting and mounting structure, and more particularly relates to a filter element connecting and mounting structure of a purified water machine.

Background

Along with the improvement of living standard, the requirements of people on drinking water are also continuously improved. Currently, in order to obtain healthy and healthy drinking water, a pure water machine is generally used for filtering impurities and microorganisms in tap water. Thus, the pure water machine has been developed.

Among the numerous purified water machines, the purified water machine with compact and small structure and attractive appearance is popular among people. Therefore, manufacturers begin to develop high-composite and high-integration composite filter elements, and users can obtain the small water purifier on the premise of not sacrificing the product quality.

However, because the height of the filter element is compounded, even the compounding of the front filter element and the rear filter element, the diameter and the volume of the compound filter element are both increased, the number of water inlets and water outlets of the filter element are synchronously increased, and the number and the size of the required sealing rings are correspondingly increased.

When the existing filter element is installed, the filter element is usually placed in the filter element barrel firstly, then the filter element barrel is positioned on the filter element seat, and the connection sealing mode of the filter element barrel and the filter element seat is not more than two: one is to seal the outer circle of the joint radially, each water inlet and outlet is required to be provided with one to two O-shaped rings for sealing, then the filter element barrel and the filter element are rotated, and the filter element barrel and the filter element are fixed by locking buckles or are directly inserted into elastic buckles for locking. The other is that the end face seal ring seals, each water inlet and water outlet is sealed by a seal ring, and the filter element barrel and the filter element are fixed by a locking buckle after rotating. Obviously, by adopting the former sealing mode, the O-shaped seal has a large number of turns, large size, large friction force during screwing and difficult installation. When the latter sealing mode is adopted, the number of the sealing rings is relatively small, the size is also small, but the locking force required by plane sealing is large, the friction force generated during screwing is relatively smaller than that of the former, but the plane bearing capacity is poor, and the sealing bearing is difficult.

At present, a rotary water-stopping filter element device is designed, such as a structure disclosed in a document with a Chinese patent grant publication number of CN210214839U, in the device, a rotary seat which rotates relative to the filter element barrel is additionally arranged on the filter element barrel, the relative positions of the filter element barrel, the filter element and a central water collecting pipe are unchanged, and the rotary seat and the filter element barrel rotate relative to each other, so that each water passing channel is in a communicating state or a blocking state. By adopting the structure, the filter element can be assembled and disassembled without water leakage.

However, the axial water passing channel is formed on the rotary seat in the document, and the arranged sealing ring (the sealing ring indicated by the reference numeral 15 in the figure) still belongs to end face sealing, so that the defects of poor plane bearing capacity and difficult sealing bearing exist.

Further improvements are now needed.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a filter element connection installation structure which is easy to install and good in sealing performance aiming at the current state of the art.

The second technical problem to be solved by the invention is to provide the purified water machine with the filter element connecting and mounting structure aiming at the current state of the art, so that the filter element of the purified water machine is easy to mount and has good sealing performance.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a filter core connection mounting structure, includes the connecting seat that has the cavity and sits in the cavity of connecting seat and can relative connecting seat horizontal rotation's roating seat, the lower tip of filter core can be supplied to the last port of the cavity of connecting seat to insert, be equipped with on the upper surface of roating seat with the interface quantity of filter core the same and can insert a plurality of spliced poles in the corresponding interface of filter core, open at each spliced pole has axial passageway, its characterized in that: the rotary seat is also provided with a plurality of radial channels which are the same in number with the interfaces of the filter element and are communicated with the corresponding axial channels on the connecting columns, the connecting seat is provided with water flow channels corresponding to the radial channels, the inner end surface of each water flow channel is provided with a first sealing ring which is in contact fit with the peripheral surface of the rotary seat, and when the rotary seat rotates relative to the connecting seat, the radial channels on the rotary seat are communicated with or staggered with the corresponding water flow channels on the connecting seat.

In the above scheme, it is further improved that each water flow channel consists of a radial water flow channel and an axial water flow channel, a core body with a radial through hole and a spring with one end acting on the core body are arranged in the radial water flow channel, the spring can enable the core body to always move radially inwards to be exposed out of the radial water flow channel, the through hole on the core body becomes a part of the water flow channel, and the first sealing ring is positioned on the inner end surface of the core body. So that the installation of the filter element is easier.

In order to facilitate processing and assembly, a plug which is abutted with the other end of the spring is also arranged in each radial water flow channel.

In order to prevent leakage between the core and the radial water flow channels, it is preferred that a second sealing ring is mounted on the contact surface of the core and the corresponding radial water flow channel.

In each scheme, the number of the connecting columns is four, and the number of the radial channels and the number of the water flow channels are correspondingly four respectively, so that the installation of the composite filter element is met.

In the above-mentioned various schemes, in order to conveniently restrain the rotating seat in the connecting seat, preferably, an upper shoulder propping against the upper surface of the rotating seat is arranged on the inner wall of the connecting seat, and a bottom cover which is positioned below the rotating seat and can restrain the rotating seat in the connecting seat is also detachably connected on the connecting seat.

In order to be assembled with the filter element rapidly, more practical, the inner wall of the upper port of the cavity of the connecting seat is also provided with a positioning rib which extends along the circumferential direction and is matched with the locking buckle on the filter element.

The invention solves the second technical problem by adopting the technical proposal that: the utility model provides a pure water machine, is including the filter core and supply the filter core connection mounting structure of filter core installation, its characterized in that: the filter element connection and installation structure adopts the filter element connection and installation structure.

Compared with the prior art, the radial channel is additionally arranged on the rotating seat, and the water flow channel corresponding to the radial channel is additionally arranged on the connecting seat, so that the first sealing ring is matched and sealed with the peripheral surface of the rotating seat, and the sealing mode of the outer peripheral surface of the radial channel absorbs the respective advantages of radial sealing and end face sealing in the prior art, and has the characteristics of easiness in sealing, small friction force when the filter element is screwed and easy installation. Especially when installing first sealing washer on the interior terminal surface of core, when radial passageway and corresponding rivers passageway are in under the intercommunication state, because both ends of core are under the pressure of water, therefore first sealing washer need not bear water pressure, and the diameter of first sealing washer is little, and the pressurized is little, even under the condition of not releasing pressure, it is also very light to change the filter core. The invention has the advantages that the simple structure is adopted to achieve the technical effect of easy thinking, the service life of the first sealing ring is long, the sealing performance is good, and the filter element is convenient to replace, so that the use experience of the pure water machine is obviously improved, the popularization of the pure water machine is facilitated, and the pure water machine is more suitable for being applied to the pure water machine with the composite filter element.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention with a filter cartridge installed;

FIG. 2 is a partial perspective view of the reset cartridge of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 1;

FIG. 4 is a schematic perspective view of FIG. 1 with the filter element removed;

FIG. 5 is a schematic cross-sectional view of FIG. 4;

FIG. 6 is a schematic cross-sectional view of A-A of FIG. 5 (on state);

FIG. 7 is a schematic view of the structure of the rotary base of FIG. 6 after being rotated relative to the connecting base (dislocated state);

FIG. 8 is a schematic perspective view of the other direction of FIG. 4;

fig. 9 is a schematic perspective view of a rotating base in an embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and because the disclosed embodiments of the present invention may be arranged in different directions, these directional terms are merely for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to directions opposite or coincident with the direction of gravity. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

The filter element connecting and mounting structure is applied to a water purifier and used for mounting the filter element, and the filter element can be a single filter element or a composite filter element in the prior art. In this embodiment, the filter element connection mounting structure will be described below by taking a composite filter element as an example.

As shown in fig. 1 to 3, a composite filter element 10 is schematically inserted on the filter element connection mounting structure 20, a handle 30 is provided at the top of the composite filter element, so that the composite filter element can be held by a user, and the diameter of the lower end of the composite filter element 10 is reduced to form an insertion end 101, which can be inserted into an upper port of a connection seat 1 described below. In order to be fixed to the connection socket 1, a locking buckle 102 is provided on the outer circumferential wall of the insertion end 101, and the locking buckle 102 is formed as a block extending in the circumferential direction, although other structures in the prior art are also possible. Since the locking buckle 102 and the composite cartridge 10 and handle 30 are both prior art, they will not be described in detail herein.

The filter element connection and installation structure 20 mainly comprises a connection seat 1 and a rotation seat 2, please refer to fig. 4 to 9, wherein the connection seat 1 is provided with a cavity 11, and the cavity 11 can be arranged in a manner of penetrating through the connection seat 1 up and down, or can be only penetrated through the upper surface of the connection seat 1. In the figure, the cavity 11 is provided in the former manner, and the lower port is shielded by a bottom cover 3 described below. The upper end of the cavity 11 of the connecting seat 1 can be inserted into the insertion end 101 of the composite filter element 10, and corresponds to the locking buckle 102 on the reset filter element 10, the inner wall of the upper end of the cavity of the connecting seat 1 is also provided with a positioning rib 12 extending along the circumferential direction, the positioning rib 12 is designed into a transverse L shape, a chute matched with the locking buckle 102 is formed between the inner wall of the cavity 11, when the lower end of the reset filter element 10 is inserted into the upper end of the cavity 11, the lower end of the reset filter element 10 rotates by an angle according to the arrow direction shown in fig. 4, the locking buckle 102 on the composite filter element 10 slides into the chute according to the arrow direction, and the positioning rib 12 is matched and abutted with the locking buckle on the composite filter element 10, so that the composite filter element 10 is prevented from being axially separated from the connecting seat 1, therefore, the connecting mode is also the prior art, and the connecting mode is not described in detail.

The rotating base 2 is located in the cavity 11 of the connecting base 1 and can horizontally rotate relative to the connecting base 1. The rotation seat 2 can be restrained to rotate in the connection seat 1 in various structures. In this embodiment, specifically, an upper shoulder 13 abutting against the upper surface of the rotating seat 2 is provided on the inner wall of the connecting seat 1, the bottom cover 3 located below the rotating seat is detachably connected to the connecting seat 1, and the bottom cover 3 can be fixed to the bottom of the connecting seat 1 by a screw, see fig. 5 and 8, so that when the rotating seat 2 is installed into the cavity 11 of the connecting seat 1 from bottom to top, the upper surface abuts against the upper shoulder 13 to limit the axial upward movement of the rotating seat 2, and then the bottom cover 3 is used to cover the lower port of the cavity 11 of the connecting seat 1 to limit the axial downward movement of the rotating seat 2. Obviously, in this embodiment, the rotating seat 2 can be restrained in the cavity 11 of the connecting seat 1 by adopting a simple structure, so that the rotating seat can horizontally rotate relative to the connecting seat 1 as required.

In order to realize the communication with the interfaces 103 in the composite filter element 10, the upper surface of the rotating seat 2 is provided with a plurality of connecting columns 21 which are the same as the interfaces 103 of the composite filter element 10 in number and can be inserted into the corresponding interfaces of the composite filter element 10, and as can be seen from the combination of the figures, the composite filter element is provided with four interfaces 103, therefore, the upper surface of the rotating seat 2 is provided with four connecting columns 21, each connecting column 21 is internally provided with an axial channel 22, meanwhile, the rotating seat 2 is also provided with four radial channels 23 which are the same as the interfaces of the composite filter element and are communicated with the axial channels 22 on the corresponding connecting columns 21, and the ports of each radial channel 23 are positioned on the peripheral surface of the rotating seat 2, as can be seen from fig. 9. Correspondingly, the connecting seat 1 is provided with water flow channels 14 corresponding to the radial channels, in this embodiment, each water flow channel 14 is composed of a radial water flow channel 141 and an axial water flow channel 142, referring to fig. 3 and 5, the upper end of the axial water flow channel 142 is communicated with the radial water flow channel 141, and the lower end is used for connecting with an internal waterway of the purified water machine, so that purified water filtered by the composite filter element and generated heavy water flow out of the purified water machine. Also installed in each radial water flow passage 141 are a core 4 with a radial through hole 41 and a spring 5 having one end acting on the core 4, the other end of the spring 5 being abutted against a plug 6, the plug 6 being also positioned in the radial water flow passage 141, and the plug 6 being screwed into the outer port of the radial water flow passage 141 for convenience in positioning the plug 6. Thus, the preload of the spring 5 can also be adjusted by rotating the plug 6. The pre-tightening force of the spring can lead the core body 4 to always have a trend of moving radially inwards and exposing the inner port of the radial water flow channel 141, the through hole 41 on the core body 4 becomes a part of the water flow channel 14, and the inner end surface of the core body 4 is provided with a first sealing ring 7 in contact fit with the outer peripheral surface of the rotary seat 2. When the connecting post 21 on the rotary seat 2 is inserted into the corresponding interface of the composite filter element 10, the rotary seat 2 is driven to horizontally rotate relative to the connecting seat 1 along with the rotation of the composite filter element 10, and when the locking buckle 102 on the composite filter element 10 rotates to be abutted against the vertical part on the positioning rib 12, the radial channel 23 on the rotary seat 2 is communicated with the corresponding water flow channel 14 on the connecting seat 1 (refer to fig. 6), at this time, because both ends of the core body 4 are under the pressure of water, the first sealing ring 7 does not need to bear the water pressure, the diameter of the first sealing ring 7 is small, the pressure is small, and even under the condition of no pressure relief, the rotary composite filter element 10 and the rotary seat 2 can be easily rotated. When the composite filter element needs to be replaced or maintained, the composite filter element 10 and the rotary seat 2 are rotated reversely, so that the locking buckle 102 on the composite filter element 10 is completely separated from the positioning rib 12, and at this time, the radial channel 23 on the rotary seat 2 is dislocated from the corresponding water flow channel 14 on the connecting seat 1 (see fig. 7), and in this state, the composite filter element 10 can be lifted upwards, so that the composite filter element 10 is separated from the connecting seat 1 and the rotary seat 2. Because the water stop valve 40 (one-way valve) is arranged in each interface of the composite filter element 10, namely the structure of drip prevention is provided, water in the composite filter element 10 can be prevented from falling. The water in the axial passage 22 and the radial passage 23 in the rotary seat 2 flows into the gap between the rotary seat 2 and the connection seat 1 in a small amount, but naturally evaporates due to the small gap. The radial water flow channel 141, the axial water flow channel 142 and water in the water path inside the water purifier can effectively prevent the water from leaking due to the sealing fit between the first sealing ring 7 and the peripheral wall of the rotary seat 2, and in the rotating process, the pressure bearing of each first sealing ring is small, the friction force is small, and the composite filter element 10 and the rotary seat 2 can be rotated easily and conveniently.

In the process of rotating the rotating seat 2, the core body can move in the radial water flow channel 141 under the action of the spring 5, and in the moving process, in order to prevent the leakage phenomenon between the core body 4 and the radial water flow channel 141, a second sealing ring 8 is further installed on the contact surface between the core body 4 and the corresponding radial water flow channel 141, and in the figure, the second sealing ring 8 is installed on the outer peripheral surface of the core body 4. Of course, the radial water flow passage 141 may be provided on the inner wall surface thereof, as required. Also, in order to prevent leakage between the plug 6 and the radial water flow passage 141, a third sealing ring 9 is provided on the plug 6 to be fitted with the inner wall of the radial water flow passage 141.

Besides the water flow channel in the embodiment, the water flow channel can be directly designed into a radial distribution mode, and meanwhile, the core body, the spring and the plug are omitted, so that the outer port of the radial channel is directly communicated with an internal waterway of the water purifier, and the first sealing ring is directly arranged on the inner end surface of the water flow channel and is also in contact fit with the peripheral surface of the rotating seat.

Claims (8)

1. The utility model provides a filter core connection mounting structure, includes connecting seat (1) and the roating seat (2) that sits in the cavity of connecting seat and can relative connecting seat horizontal rotation that have cavity (11), the lower tip of filter core can be supplied to the last port of the cavity of connecting seat (1) inserts, be equipped with on the upper surface of roating seat (2) with the interface quantity of filter core the same and can insert a plurality of spliced pole (21) in the corresponding interface of filter core, open in each spliced pole has axial passageway (22), its characterized in that: the rotary seat (2) on still open have the same and with the interface quantity of filter core and with the axial passageway on the spliced pole that corresponds a plurality of radial passageway (23) that are linked together, then open on the connecting seat (1) with each radial passageway corresponding rivers passageway (14), be equipped with on the interior terminal surface of each rivers passageway with the global contact complex first sealing washer (7) of rotary seat (2) take place when rotating relative connecting seat (1), radial passageway (23) on rotary seat (2) are linked together (14) or are misplaced with the corresponding rivers passageway on connecting seat (1).

2. The cartridge attachment mounting arrangement of claim 1, wherein: each water flow channel (14) consists of a radial water flow channel (141) and an axial water flow channel (142), a core body (4) with a radial through hole (41) and a spring (5) with one end acting on the core body are arranged in the radial water flow channel (141), the spring can enable the core body to always have a trend of moving radially inwards to be exposed out of the radial water flow channel, the through hole (41) on the core body (4) becomes a part of the water flow channel (14), and the first sealing ring (7) is positioned on the inner end face of the core body (4).

3. The cartridge connecting mounting structure according to claim 2, wherein: and plugs (6) which are abutted against the other ends of the springs (5) are also arranged in the radial water flow channels (141).

4. The cartridge connecting mounting structure according to claim 2, wherein: and a second sealing ring (8) is arranged on the contact surface of the core body (4) and the corresponding radial water flow channel (141).

5. A cartridge attachment mounting arrangement according to any one of claims 1 to 4, wherein: the number of the connecting columns (21) is four, and the number of the radial channels (22) and the number of the water flow channels (14) are correspondingly four.

6. A cartridge attachment mounting arrangement according to any one of claims 1 to 4, wherein: an upper shoulder (13) propping against the upper surface of the rotating seat (2) is arranged on the inner wall of the connecting seat (1), and the connecting seat (1) is also detachably connected with a bottom cover (3) which is positioned below the rotating seat (2) and can restrict the rotating seat (2) in the connecting seat (1).

7. A cartridge attachment mounting arrangement according to any one of claims 1 to 4, wherein: the inner wall of the upper port of the cavity of the connecting seat (1) is also provided with a positioning rib (12) which extends along the circumferential direction and is used for being matched with the locking buckle on the filter element.

8. The utility model provides a pure water machine, is including the filter core and supply the filter core connection mounting structure of filter core installation, its characterized in that: the filter element connecting and mounting structure adopts the filter element connecting and mounting structure as claimed in any one of claims 1 to 7.