CN112156557A

CN112156557A - Filter and hot water equipment with from water locking function

Info

Publication number: CN112156557A
Application number: CN202011072978.0A
Authority: CN
Inventors: 艾穗江; 李鹏飞; 徐扬; 邓海燕
Original assignee: Guangdong Macro Gas Appliance Co Ltd
Current assignee: Guangdong Macro Gas Appliance Co Ltd
Priority date: 2020-09-17
Filing date: 2020-10-09
Publication date: 2021-01-01

Abstract

The invention discloses a filter with a self-locking water function, which comprises: the filter cartridge is arranged at the water inlet end and the water outlet end of the filter cartridge; the water path conversion device is characterized in that the filter cylinder is connected with a water supply pipeline through a water path receiving device, the water path receiving device comprises a valve body and a water path conversion piece, the valve body comprises a water inlet cavity, a water outlet cavity and an installation cavity communicated with the water inlet cavity and the water outlet cavity, the water path conversion piece is arranged in the installation cavity, a second water flow channel matched with the water inlet end and the water outlet end of the filter cylinder is arranged on the water path conversion piece, and when the water path conversion piece rotates or axially moves under the action of assembly force of the filter cylinder, the second water flow channel and the water path conversion piece alternately conduct the water inlet cavity and the water outlet cavity. The water leakage condition after the filter cartridge is disassembled is avoided, and the normal work of the hot water equipment is not influenced even if the filter cartridge is not installed. The invention also provides a hot water device with the filter.

Description

Filter and hot water equipment with from water locking function

Technical Field

The invention relates to the technical field of water heating equipment, in particular to a filter with a self-locking water function and water heating equipment.

Background

The filter that current water heater was equipped with, no matter leading filter or rearmounted filter are changing or wash the filter in-process, must carry out the water route dismantlement after closing water intaking valve manually, if only dismantle the filter flask, the water route is destroyed, can continuously spout rivers, and it is inconvenient that the user changes to tear open and wash the filter flask, changes the inefficiency.

Patent CN201810029867.8 discloses a double water stop structure for filter, which includes a base and a filter element, wherein the base includes a water inlet passage, a water outlet passage and a chamber for assembling the filter element; the water inlet and outlet paths are respectively communicated with the accommodating chamber; the double-water-stop structure is arranged in the containing chamber; the double water stopping structure comprises a water stopping seat and an elastic piece; the water stop seat is arranged in the containing chamber, one end of the water stop seat is used for pushing the filter element, and the other end of the water stop seat is matched with the elastic piece; two ends of the elastic piece respectively act on the water stop seat and the inner wall of the accommodating chamber; the invention provides a double-water-stop structure for a filter, which has the advantages of simple structure, low cost and easy realization; the water stopping seat is slightly loosened, the water inlet valve does not need to be closed when the filter element is replaced, the bidirectional water stopping can be easily realized, the overall structure is small in size, reasonable in design and modular design is realized, the water stopping seat is jacked open during the assembly of the filter element, and the water way is communicated. When the filter element is detached, the water stop seat cuts off water inlet and water outlet at the same time. Although the double-water-stop structure solves the problem that water needs to be cut off when the filter device is replaced, the double-water-stop structure is not suitable for the situation that water still needs to be used after the filter device is detached.

Disclosure of Invention

In view of the problems in the prior art, an object of the present invention is to provide a filter having a water self-locking function, which can remove and replace a filter cartridge without cutting off water inflow and does not affect normal water use even if the filter cartridge is not mounted.

The invention also provides a hot water device with the filter.

In order to achieve the above purpose, the invention adopts the following technical scheme:

a filter with a self-locking water function comprises: the filter cartridge is arranged at the water inlet end and the water outlet end of the filter cartridge; the water path conversion device is characterized in that the filter cylinder is connected with a water supply pipeline through a water path receiving device, the water path receiving device comprises a valve body and a water path conversion piece, the valve body comprises a water inlet cavity, a water outlet cavity and an installation cavity communicated with the water inlet cavity and the water outlet cavity, the water path conversion piece is arranged in the installation cavity, a second water flow channel matched with the water inlet end and the water outlet end of the filter cylinder is arranged on the water path conversion piece, and when the water path conversion piece rotates or axially moves under the action of assembly force of the filter cylinder, the second water flow channel and the water path conversion piece alternately conduct the water inlet cavity and the water outlet cavity.

As a further explanation of the above scheme, the waterway conversion member comprises a ball valve arranged in the mounting cavity, and a rotating plate fixedly connected with the ball valve; a containing chamber for rotatably installing the rotating plate is arranged on one side of the installation chamber, the water inlet chamber is communicated with the containing chamber through a water inlet hole, and the water outlet chamber is communicated with the containing chamber through a water outlet hole; the rotating plate is provided with two second water flow channels respectively matched with the water inlet hole and the water outlet hole; the two second water flow channels are in one-to-one inserting fit with the water inlet end and the water outlet end; when the rotating plate rotates under the action of the assembling force of the filter cylinder, the water inlet cavity and the water outlet cavity are alternatively communicated by the two second water flow channels and the through hole of the ball valve.

As a further explanation of the above scheme, two first water flow channels are arranged on the filter cartridge, and the two first water flow channels respectively form a water inlet end and a water outlet end of the filter cartridge; the first water flow channel is a water flow channel groove, and the second water flow channel is a water flow channel column which can be inserted into the water flow channel groove; a spring is arranged in the water flow channel groove, and a plug is arranged on the spring; and a pressing plate is pressed on the filter cylinder and is in interference fit with the plug to block the water flow channel groove.

As a further explanation of the above solution, a filter cartridge head is provided at one end of the filter cartridge, and the first water flow channel is provided on the filter cartridge head; the filter cartridge head is in threaded connection with the filter cartridge.

As a further explanation of the above scheme, an installation groove is provided on the accommodating chamber, and the installation groove limits the rotating plate in the accommodating chamber.

As a further explanation of the above scheme, a clamping groove is arranged in the mounting groove, a clamping block matched with the clamping groove is arranged on the periphery of the filter cylinder, and the filter cylinder is rotatably clamped with the mounting groove.

As a further explanation of the above scheme, a connecting rod connected with the ball valve is arranged at the central part of the rotating plate, and a through hole for the connecting rod to pass through is arranged on the side wall of the ball valve installation cavity.

As a further explanation of the above scheme, the waterway conversion member includes a boss-shaped conduction seat installed in the installation cavity, an adapter member and an elastic member which are matched with the conduction seat; the installation cavity is internally provided with an annular groove communicated with the water inlet cavity and accommodating the protruding part of the conduction seat to enter, the adapter is connected with one side of the water inlet cavity relative to the installation cavity, the second water flow channel comprises a water outlet channel which is arranged on the adapter and matched with the water outlet end of the filter cylinder, and a water inlet through hole which is arranged on the side surface of the protruding part and matched with the water inlet end of the filter cylinder, the two ends of the elastic part respectively act on the installation cavity and the conduction seat, and the conduction seat is linked with the elastic part to be pressed or reset when the filter cylinder moves axially under the action of assembly force, so that the second water flow channel and the conduction seat are alternately conducted with the water inlet cavity and the water outlet cavity.

As a further explanation of the above solution, the conduction seat is a hollow member, and includes a protrusion, a boss disposed at the bottom of the protrusion, and a stress ring disposed in the boss.

As a further explanation of the above solution, the adaptor includes an upper chamber connected to the mounting chamber and a lower chamber connected to the filter cartridge; the upper cavity is internally provided with a containing groove for containing the stress ring, and the water outlet channel is arranged at the periphery of the containing groove and communicated with the upper cavity and the lower cavity.

As a further explanation of the above scheme, an inner spring is arranged between the accommodating groove and the force bearing ring.

As a further explanation of the above scheme, the filter cartridge comprises a cartridge body, a filter element cap sleeved on the cartridge body, and a filter element cartridge rotatably clamped with the filter element cap and arranged in the cartridge body; a water nozzle which is in plug-in fit with the stress ring is arranged on the filter element cap, and a water inlet hole which is matched with the water inlet through hole is arranged on the water nozzle to form a water inlet end of the filter cylinder; and a water flow channel matched with the water outlet channel is arranged on the filter element cap to form the water outlet end of the filter cylinder.

The water heating equipment is provided with a water inlet pipe and a water outlet pipe, and is characterized in that the water inlet pipe or the water outlet pipe is provided with the filter with the self-water-locking function.

As a further explanation of the above scheme, the hot water apparatus is an electric water heater, a gas water heater or a solar water heater.

As a further explanation of the above solution, the water receiving waterway device is partially hidden and installed in the hot water apparatus.

The invention has the beneficial effects that:

the normal working water path of the hot water equipment cannot be influenced even if the filter cartridge is not installed, and a user can conveniently and automatically select whether to install a filter component according to the use condition after the filter cartridge is installed on the hot water equipment, so that the filter component is conveniently installed; the water inlet end and the water outlet end of the filter cartridge and the waterway conversion piece alternately conduct the water inlet cavity and the water outlet cavity; when the filter component needs to be installed, the waterway conversion piece converts the waterway after the filter cartridge is installed, so that the waterway reaches the water outlet cavity after the filter cartridge, and when the filter cartridge needs to be replaced or cleaned, the waterway conversion piece directly detaches the filter cartridge, so that the water inlet cavity and the water outlet cavity are directly communicated while water locking is realized, and the situations of water leakage and water path reconnection needs to be avoided.

The filter cartridge is rotationally clamped or in threaded connection with the waterway receiving device, and in the process of fixing the filter cartridge, the waterway conversion piece is driven to rotate or axially move to disconnect the water inlet cavity and the water outlet cavity from being directly communicated, and meanwhile, the water inlet end of the filter cartridge is communicated with the water inlet cavity, and the water outlet end of the filter cartridge is communicated with the water outlet cavity, so that water is filtered by the filter cartridge and then is discharged; in the process of disassembling the filter cartridge, the waterway adapter is driven to enable the water inlet end and the water outlet end of the filter cartridge to be respectively separated from the water inlet cavity and the water outlet cavity or staggered to cut off the waterway of the filter cartridge, and the water inlet cavity and the water outlet cavity are simultaneously communicated; the installation and the disassembly of the filter cartridge are convenient.

And thirdly, installing internal parts for opening and closing the water flow channel groove in the water flow channel groove, preventing water in the filter cartridge from flowing back after the filter cartridge is disassembled, and further avoiding water leakage.

And fourthly, the filter cylinder is in threaded connection with a filter cylinder head, so that the filter element in the filter cylinder is convenient to replace and clean.

Drawings

Fig. 1 is an exploded view of a filter with a self-locking water function according to a first embodiment.

Fig. 2 is a cross-sectional view of a bottom support of a filter with a self-locking water function according to an embodiment.

Fig. 3 is a front view of a bottom bracket of a filter with a self-locking water function provided by the first embodiment.

Fig. 4 is a cross-sectional view of a rotating plate of a filter with a self-locking water function according to an embodiment.

Fig. 5 is a front view of a rotating plate of a filter with a self-locking water function according to an embodiment.

Fig. 6 is a waterway diagram of the installed waterway receiving device of the filter with the self-locking function according to the first embodiment.

Fig. 7 is a water path diagram of the filter with the self-locking function according to the first embodiment after installation.

Fig. 8 is an exploded view of the filter with self-locking function according to the second embodiment.

Fig. 9 is a structural diagram of a filter with a self-locking water function according to a second embodiment.

Fig. 10 is a schematic view of a filter cartridge head structure of a filter with a self-locking water function according to a second embodiment.

Fig. 11 is a schematic view of a conduction seat of a filter with a self-locking function according to a second embodiment.

Fig. 12 is a schematic structural view of an adapter of a filter with a self-locking water function according to a second embodiment.

Fig. 13 is a schematic diagram illustrating a structure of a filter element cap of a filter with a self-locking water function according to a second embodiment.

Fig. 14 is a waterway diagram of the waterway receiving device of the filter with the self-locking function according to the second embodiment after installation.

Fig. 15 is a water path diagram of the filter with the self-locking function according to the second embodiment after installation.

Fig. 16 is a schematic structural diagram of a water heating device provided by the third embodiment.

Fig. 17 is a schematic view of a filter partially hidden installation structure with a self-locking water function according to a third embodiment.

Description of reference numerals:

1: a filter cartridge, 2: filter cartridge head, 3: spring support, 4: pressing plate, 5: mounting groove, 6: the rotating plate is provided with a rotating plate and a rotating plate,

7: rotating plate sealing ring, 8: collet, 9: water flow passage column seal ring, 10: ball valve seal gasket, 11: ball with ball-shaped section

Valve, 12: water flow passage groove seal ring, 13: plug, 14: a spring.

61: connecting rod, 62: water flow channel column, 63: first solid seal, 81: water inlet chamber, 82: water outlet cavity, 83: inlet opening, 84: water outlet hole, 85: ball valve installation cavity, 86: a second solid seal.

201: cartridge head, 202: outer spring, 203: waterway seal gasket, 204: conduction seat, 205: inner spring, 206: first sealing gasket, 207: second sealing gasket, 208: adaptor, 209: filter element cap, 210: cartridge gasket, 211: cartridge, 212: cylinder, 213: water inlet through hole, 214: annular groove, 215: inlet opening, 216: and a water outlet channel.

:2011: intake chamber, 2012: outlet lumen, 2013: mounting cavity, 2041: boss, 2042: force ring, 2043: plateau, 2044: second sealing washer installation position, 2081: storage tank, 2082: outlet passage, 2091: a snap flange.

200: filter with auto-lock water function, 300: a hot water apparatus.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present invention, unless otherwise specified and limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following describes the embodiments of the present invention with reference to the drawings of the specification, so that the technical solutions and the advantages thereof are more clear and clear. The embodiments described below are exemplary and are intended to be illustrative of the invention, but are not to be construed as limiting the invention.

Example one

As shown in fig. 1 to 5, a filter having a self-locking water function includes: the filter cartridge comprises a filter cartridge 1 and two first water flow channels, wherein the two first water flow channels are arranged on the filter cartridge and respectively form a water inlet end and a water outlet end of the filter cartridge 1; the filter cartridge is characterized in that the filter cartridge 1 is connected with a water supply pipeline through a receiving waterway device, the receiving waterway device comprises a base support 8, a rotating plate 6 and a ball valve 11 connected with the rotating plate 6, the base support 8 comprises a water inlet cavity 81, a water outlet cavity 82, a ball valve mounting cavity 85 which is used for connecting the water inlet cavity 81 and the water outlet cavity 82 and is used for mounting the ball valve 11, and a chamber which is arranged on one side of the ball valve mounting cavity 85 and is used for mounting the rotating plate 6, the water inlet cavity 81 is communicated with the chamber through a water inlet 83, the water outlet cavity 82 is communicated with the chamber through a water outlet 84, the rotating plate is rotatably mounted in the chamber, second water flow channels matched with the water inlet 83 and the water outlet 84 are arranged on the rotating plate 6, and the two first water flow channels are in one-to-one inserting fit with the second water flow channels; when the rotating plate 6 is rotated, the water inlet cavity and the water outlet cavity are alternatively communicated by the two second water flow channels and the through holes of the ball valves.

Wherein, the filter cylinder head 2 is arranged at one end of the filter cylinder 1, and the first water flow channel is arranged on the filter cylinder head 2. The filter cartridge head 2 is in threaded connection with the filter cartridge 1, so that the filter cartridge can be conveniently opened to replace and clean a filter element in the filter cartridge.

The first water flow channel is a water flow channel groove, and the second water flow channel is a water flow channel column 62 which can be inserted into the water flow channel groove. An inner part for controlling the opening and closing of the water flow channel is arranged in the water flow channel and comprises a spring bracket 3, a spring 14 arranged on the spring bracket 3 and a plug 13 arranged on the spring 14; and a pressing plate 4 is pressed on the filter cartridge head 2, and the pressing plate 4 and the plug 13 are in interference fit to block the water flow channel groove. When the filter cartridge is installed, the water flow channel column 62 is poked into the water flow channel groove, and the plug 13 is pressed inwards to open the water channel of the filter cartridge, so that water can flow into the water flow channel groove; after the filter cartridge is disassembled, the water flow channel column 62 leaves the water flow channel groove, and the plug blocks the water flow channel groove again under the action of the spring, so that the water in the filter cartridge is prevented from flowing back.

Preferably, the accommodating chamber is provided with a mounting groove 5, the mounting groove 5 is provided with a mounting hole for allowing the water flow channel column to pass through, the mounting groove 5 is connected with the accommodating chamber through a screw, and the mounting groove 5 limits the rotating plate 6 in the accommodating chamber. The filter cartridge is characterized in that a clamping groove is formed in the mounting groove 5, clamping blocks matched with the clamping groove are arranged on the periphery of the filter cartridge head 2, and the filter cartridge head 2 is rotatably clamped in the mounting groove 5, so that the filter cartridge is convenient to disassemble, install and filter.

The central part of the rotating plate 6 is provided with a connecting rod 61 connected with the ball valve 11, the side wall of the ball valve installation cavity 85 is provided with a through hole for the connecting rod 61 to pass through, and the rotating plate and the ball valve are linked through the connecting rod.

Two first solid sealing pieces 63 matched with the water inlet hole 83 and the water outlet hole 84 are arranged on the contact surface of the rotating plate 6 and the accommodating chamber. Two second solid seals 86 are provided on the interface of the chamber and the rotating plate that mate with the water flow channel post 62. The first solid seal 63 and the second solid seal 86 increase the sealing performance and also play a role in mounting and positioning the rotating plate.

The water outlet cavity or the water inlet cavity is arranged at the water inlet end or the water outlet end of the hot water equipment through threads, the water flow channel column of the rotating plate needs to be arranged by aiming at the second solid sealing piece 86 of the accommodating chamber, and the ball valve is firmly connected with the connecting rod of the rotating plate; the waterway in the bottom support after the waterway receiving device is installed is ensured to be as shown in figure 7. The water channel column of the filter cartridge is used as a positioning part, the water channel column is directly stabbed into the water channel groove of the filter cartridge head and slides into the mounting groove through rotation, so that the installation of the filter cartridge is realized, the water channel of the filter after the installation of the filter cartridge is completed is shown in fig. 6, the water channel of the rotary plate is communicated with the water inlet hole and the water outlet hole to connect the water channel of the filter cartridge, and meanwhile, the ball valve rotates to disconnect the water inlet cavity and the water outlet cavity. The ball valve is adopted to control the on-off of the water inlet cavity and the water outlet cavity; the rotary plate is adopted to control the on-off of the water path of the filter cylinder. The water flow channel groove of the filter cylinder is fixedly installed in a rotating mode after being plugged with the water flow channel column of the rotating plate, in the rotating and fixing process of the filter cylinder, the rotating plate is driven to rotate to enable the water flow channel of the rotating plate to be communicated with the water inlet hole and the water outlet hole so as to connect a water path of the filter cylinder, and meanwhile the rotating plate is connected with the ball valve so that the ball valve rotates to disconnect the water inlet cavity and the water outlet cavity. In the process of rotationally disassembling the filter cartridge, the rotating plate is driven to rotate, so that the water flow channel, the water inlet hole and the water outlet hole are staggered to cut off the water path of the filter cartridge, and meanwhile, the ball valve rotates to connect the water inlet cavity and the water outlet cavity.

Further preferably, a scale inhibitor or a scale inhibitor such as a stainless steel filter screen, asbestos, activated carbon, KDF, MSAP, or the like is placed in the filter cartridge 1; and materials such as medicinal materials and essence which are harmless to human body and can improve the bathing comfort level can also be placed.

And a rotating plate sealing ring 7 is arranged between the rotating plate 6 and the accommodating chamber to play a role in sealing.

And a water flow channel groove sealing ring 12 is arranged between the pressure plate 4 and the water flow channel groove, so that the sealing performance of the pressure plate and the water flow channel groove is improved.

Be equipped with ball valve seal ring 10 in ball valve installation cavity 85, ball valve seal ring 10 increases the leakproofness of ball valve 11 and ball valve installation cavity 85, prevents to leak.

And a water flow channel column sealing ring 9 is arranged between the water flow channel column and the water inlet hole and between the water flow channel column and the water outlet hole, and plays a role in sealing.

Compared with the prior art, the filter with the self-locking water function that this embodiment provided has following characteristics: 1) the water path bearing device automatically locks water after the filter cartridge is disassembled, the water leakage is avoided, the water path needs to be reconnected in the filter replacement process, the normal work of hot water equipment is not influenced, the filter cartridge can be replaced without cutting off water inflow, and the operation is convenient and rapid. 2) The inner part for controlling the opening or closing of the water flow channel groove is arranged in the water flow channel groove, so that the water in the filter cartridge is prevented from flowing back after the filter cartridge is detached, and water leakage is further avoided. 3) The filter cartridge is in threaded connection with the filter cartridge head, so that the filter element in the filter cartridge can be conveniently replaced and cleaned.

Example two

As shown in fig. 8 to 10, a filter having a self-locking water function includes: the filter cartridge is arranged at the water inlet end and the water outlet end of the filter cartridge; the water filter is characterized in that the filter cylinder is connected with a water supply pipeline through a water receiving channel device, the water receiving channel device comprises a filter cylinder head 201 and a water channel conversion piece, the filter cylinder head 201 comprises a water inlet cavity 2011, a water outlet cavity 2012 and a mounting cavity 2013 communicated with the water inlet cavity 2011 and the water outlet cavity 2012, the water channel conversion piece comprises a conduction seat 204 which is arranged in the mounting cavity and is in a boss shape, an adapter 208 matched with the conduction seat 204 and an elastic piece, an annular groove 214 communicated with the water inlet cavity and allowing a bulge of the conduction seat 204 to enter is arranged in the mounting cavity, a water outlet channel 2082 matched with the water outlet end of the filter cylinder is arranged on the adapter 208, a water inlet through hole 213 matched with the water inlet end of the filter cylinder is arranged on the side surface of the bulge of the conduction seat 204, and two ends of the elastic piece respectively act on the mounting cavity 2013 and the conduction seat 204, the conducting seat 204 is sleeved on the adapter under the action of the elastic piece to block the water inlet through hole 213 and the water outlet channel 2082, and when the conducting seat 204 axially moves under the action of the assembly force of the filter cartridge, the conducting seat is linked with the elastic piece to be pressed or reset, so that the water inlet through hole, the water outlet channel and the water channel conversion piece alternately conduct the water inlet cavity and the water outlet cavity.

As shown in fig. 11, the conducting seat 204 is a hollow member, and includes a protruding portion 2041 and a boss 2043 disposed at the bottom of the protruding portion, and a force-bearing ring 2042 inserted into the filter cartridge is disposed in the boss 2043.

As shown in connection with fig. 12, the adaptor 208 includes an upper chamber connected to the mounting chamber and a lower chamber connected to the filter cartridge; a containing groove 2081 for containing the stress ring is arranged in the upper cavity, and a water outlet passage 2082 is arranged at the periphery of the containing groove and communicated with the upper cavity and the lower cavity. An inner spring is arranged between the stressed ring 2042 and the accommodating groove 2081, and a limiting protrusion for limiting the inner spring is arranged in the accommodating groove. The stress ring is contacted with the bottom of the containing groove under the action of the inner spring. As shown in fig. 14, the elastic member extrudes the conduction seat 204 downward to press the boss 2043 against the adaptor so as to block the water outlet channel of the adaptor, and the protrusion 2041 is sleeved on the accommodating groove by the extrusion of the elastic member so that the accommodating groove 2081 blocks the water inlet through hole 213 on the protrusion to lock water; at this time, the water leaving the annular groove from the protruding table 2043 can reach the water outlet cavity from the water inlet cavity through the annular groove and the gap between the conducting seat and the annular groove, and the conducting seat conducts the water inlet cavity and the water outlet cavity under the action of the elastic member.

Preferably, as shown in fig. 13, the filter cartridge includes a filter cartridge cap 209, a filter cartridge 211 rotatably clamped with the filter cartridge cap 209, and a cylinder 212 sleeved outside the filter cartridge 211 and the filter cartridge cap 209; a water nozzle which is in inserted connection and matching with the stress ring 2042 is arranged on the filter element cap 209, and a water inlet hole 215 which is matched with the water inlet through hole is arranged on the water nozzle to form a water inlet end of the filter cylinder; a water flow channel 216 matched with the water outlet channel is arranged on the filter element cap 209 to form the water outlet end of the filter cylinder. The barrel is in threaded connection with the adapter. The filter element cap 209 is provided with a buckle flange 2091 rotationally clamped with the filter element cylinder, and the periphery of the top of the filter element cylinder is provided with a buckle groove matched with the buckle flange. As shown in fig. 15, the water nozzle of the filter element cap 209 penetrates into the stress ring, the filter element cap 209 drives the conduction seat 204 to compress the elastic member to move upwards in the process of screwing the cylinder body and the adapter, the conduction seat 204 gradually leaves the adapter to enable the water inlet through hole 213 to be gradually exposed until the protrusion 2041 completely extends into the annular groove 214, the boss 2043 is attached to and sealed with the annular groove 214 at this time, water enters the conduction seat 204 from the annular groove 214 through the water inlet through hole 213 of the protrusion and then enters the filter element cylinder from the stress ring and the water inlet hole 215 of the filter element cap for filtration, and the filtered water flows from the filter element cylinder to the cylinder body and then enters the water outlet cavity of the filter element head through the water flow passage 216 of the filter element cap and the water outlet passage 2082 of the adapter to discharge water.

The adapter 208 is in threaded connection with the mounting cavity, external threads matched with the filter cartridge are arranged at the bottom of the adapter 208, and internal threads matched with the adapter are arranged in the filter cartridge.

A second sealing gasket fixing position 2044 extending outwards is arranged at the bottom of the boss 2043, a second sealing gasket 207 is adhered to the second sealing gasket fixing position 2044, and a gasket groove matched with the second sealing gasket 207 is arranged on the adaptor 208. The second sealing washer functions to seal the boss and the adaptor to prevent water leakage when the filter cartridge is not installed.

The first sealing washer 206 is disposed in the protrusion 2041, and the first sealing washer 206 functions to seal the protrusion 2041 and the receiving groove 2081, thereby preventing water leakage when the filter cartridge is not installed.

The top surface of the boss 2043 is provided with a waterway sealing gasket 203, so that the waterway switching function is realized by sealing the boss and the annular groove, and water is prevented from entering the water outlet cavity without passing through the filter cartridge.

A filter cartridge sealing ring 210 is arranged between the cylinder 212 and the adaptor 208, and the filter cartridge sealing ring 210 is arranged at the bottom of the threaded groove of the cylinder to prevent water leakage after the filter cartridge is arranged.

Further preferably, the elastic member is an outer spring 202.

Stainless steel or asbestos can be arranged outside the filter element cylinder, and substances for improving the bathing comfort degree, such as activated carbon, KDF and the like, or medicinal materials, essence, skin refreshing agent and the like can be placed inside the filter element cylinder.

Compared with the prior art, the filter with the self-locking water function that this embodiment provided has following characteristics: even if the filter cartridge is not installed, the normal working water path of the hot water equipment is not influenced, and after the filter cartridge is installed on the hot water equipment, a user can conveniently and automatically select whether to install the filter component according to the use condition, so that the filter component is conveniently installed; the water inlet end and the water outlet end of the filter cartridge and the waterway conversion piece alternately conduct the water inlet cavity and the water outlet cavity; when the filter component needs to be installed, the waterway conversion piece converts the waterway after the filter cartridge is installed, so that the waterway reaches the water outlet cavity after the filter cartridge, and when the filter cartridge needs to be replaced or cleaned, the waterway conversion piece directly detaches the filter cartridge, so that the water inlet cavity and the water outlet cavity are directly communicated while water locking is realized, and the situations of water leakage and water path reconnection needs to be avoided.

EXAMPLE III

As shown in fig. 16, a water heating apparatus 300 is provided with a water inlet pipe and a water outlet pipe, and is characterized in that a filter 200 with a water self-locking function as in the first embodiment or the second embodiment is provided on the water inlet pipe or the water outlet pipe.

Wherein, the hot water equipment is a gas water heater, an electric water heater or a solar water heater.

As shown in fig. 17, the waterway receiving device can be partially hidden in the hot water apparatus, which is beautiful.

The water heating device provided by the embodiment has all the advantages of the embodiment, and details are not described herein, and as for the specific structure of the water heating device, the existing structure or the future structure may be adopted.

It will be appreciated by those skilled in the art from the foregoing description of construction and principles that the invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the teachings of the art may be made without departing from the scope of the invention as defined by the appended claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.

Claims

1. A filter with a self-locking water function comprises: the filter cartridge is arranged at the water inlet end and the water outlet end of the filter cartridge; the water path conversion device is characterized in that the filter cylinder is connected with a water supply pipeline through a water path receiving device, the water path receiving device comprises a valve body and a water path conversion piece, the valve body comprises a water inlet cavity, a water outlet cavity and an installation cavity communicated with the water inlet cavity and the water outlet cavity, the water path conversion piece is arranged in the installation cavity, a second water flow channel matched with the water inlet end and the water outlet end of the filter cylinder is arranged on the water path conversion piece, and when the water path conversion piece rotates or axially moves under the action of assembly force of the filter cylinder, the second water flow channel and the water path conversion piece alternately conduct the water inlet cavity and the water outlet cavity.

2. The filter with the self-locking function of water of claim 1, wherein the waterway conversion member comprises a ball valve arranged in the mounting cavity and a rotating plate fixedly connected with the ball valve; a containing chamber for rotatably installing the rotating plate is arranged on one side of the installation chamber, the water inlet chamber is communicated with the containing chamber through a water inlet hole, and the water outlet chamber is communicated with the containing chamber through a water outlet hole; the rotating plate is provided with two second water flow channels respectively matched with the water inlet hole and the water outlet hole; the two second water flow channels are in one-to-one inserting fit with the water inlet end and the water outlet end; when the rotating plate rotates under the action of the assembling force of the filter cylinder, the water inlet cavity and the water outlet cavity are alternatively communicated by the two second water flow channels and the through hole of the ball valve.

3. The filter with the function of self-locking water as recited in claim 2, wherein two first water flow channels are arranged on the filter cartridge, and the two first water flow channels respectively form a water inlet end and a water outlet end of the filter cartridge; the first water flow channel is a water flow channel groove, and the second water flow channel is a water flow channel column which can be inserted into the water flow channel groove; a spring is arranged in the water flow channel groove, and a plug is arranged on the spring; and a pressing plate is pressed on the filter cylinder and is in interference fit with the plug to block the water flow channel groove.

4. The filter with the function of self-locking water as recited in claim 3, wherein a filter cartridge head is arranged at one end of the filter cartridge, and the first water flow channel is arranged on the filter cartridge head; the filter cartridge head is in threaded connection with the filter cartridge.

5. The filter with the function of self-locking water as claimed in claim 2, wherein a mounting groove is provided on the chamber, and the mounting groove limits the rotating plate in the chamber.

6. The filter with the function of self-locking water as recited in claim 4, wherein a clamping groove is formed in the mounting groove, a clamping block matched with the clamping groove is arranged on the periphery of the filter cartridge, and the filter cartridge is rotatably clamped with the mounting groove.

7. The filter with the function of self-locking water as claimed in claim 2, wherein a connecting rod connected with the ball valve is arranged at the central part of the rotating plate, and a through hole for the connecting rod to pass through is arranged on the side wall of the mounting cavity.

8. The filter with the function of self-locking water as claimed in claim 1, wherein the waterway conversion member comprises a boss-shaped conduction seat installed in the installation cavity, an adapter member matched with the conduction seat and an elastic member; the mounting cavity is internally provided with an annular groove communicated with the water inlet cavity and accommodating the protruding part of the conduction seat to enter, the adapter is connected with one side of the water inlet cavity relative to the mounting cavity, the second water flow channel comprises a water outlet channel which is arranged on the adapter and matched with the water outlet end of the filter cylinder, and a water inlet through hole which is arranged on the side surface of the protruding part and matched with the water inlet end of the filter cylinder, the two ends of the elastic part respectively act on the mounting cavity and the conduction seat, and the conduction seat axially moves and is linked under the action of the assembly force of the filter cylinder to press or reset the elastic part so that the second water flow channel and the conduction seat alternately conduct the water inlet cavity and the water outlet cavity.

9. The filter with the function of self-locking water as recited in claim 8, wherein the conduction seat is a hollow member and comprises a protrusion, a boss arranged at the bottom of the protrusion, and a stress ring arranged in the boss.

10. The filter with the function of self-locking water as recited in claim 9, wherein the adaptor comprises an upper cavity connected with the installation cavity and a lower cavity connected with the filter cartridge; the upper cavity is internally provided with a containing groove for containing the stress ring, and the water outlet channel is arranged at the periphery of the containing groove and communicated with the upper cavity and the lower cavity.

11. The filter with self-locking function for water according to claim 10, wherein an inner spring is provided between said container and said force-bearing ring.

12. The filter with the function of self-locking water as recited in claim 9, wherein the filter cartridge comprises a cartridge body, a filter element cap sleeved on the cartridge body, and a filter element cartridge rotatably clamped with the filter element cap and arranged in the cartridge body; a water nozzle which is in plug-in fit with the stress ring is arranged on the filter element cap, and a water inlet hole which is matched with the water inlet through hole is arranged on the water nozzle to form a water inlet end of the filter cylinder; and a water flow channel matched with the water outlet channel is arranged on the filter element cap to form the water outlet end of the filter cylinder.

13. A water heating device is provided with a water inlet pipe and a water outlet pipe, and is characterized in that the water inlet pipe or the water outlet pipe is provided with a filter with a water self-locking function according to any one of claims 1 to 12.

14. A hot water appliance according to claim 13, characterized in that the hot water appliance is an electric water heater, a gas water heater or a solar water heater.

15. A hot water appliance according to claim 13, wherein the water receiving circuit means is mounted partially concealed within the hot water appliance.