CN214946574U

CN214946574U - Water inlet valve with filtering and water replenishing channel

Info

Publication number: CN214946574U
Application number: CN202121283041.8U
Authority: CN
Inventors: 钟建苗; 任静; 徐江良
Original assignee: Zhejiang Chunhui Intelligent Control Co Ltd
Current assignee: Zhejiang Chunhui Intelligent Control Co Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-11-30
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a water intaking valve of moisturizing passageway is filtered in area, which comprises a housin, the casing includes the moisturizing passageway, moisturizing control channel, inhalant canal, exhalant canal, hot water passageway and water pump interface intercommunication, inhalant canal and exhalant canal pass through the water course intercommunication, moisturizing passageway intercommunication water course, the moisturizing device is installed to moisturizing control channel, the moisturizing device can communicate or cut off moisturizing passageway and hot water passageway, the end cap is installed to the moisturizing passageway, filter body and check valve, the check valve is pegged graft in the inner of filtering the body, the outer end of filtering the body is connected in the inner of end cap, the inner intercommunication water course of check valve, the moisturizing device can communicate or cut off filter body and hot water passageway, the end cap is connected in the outer end of moisturizing passageway. The utility model realizes the function of zero cold water by replacing the plug without the baffle; the water replenishing channel is designed to be filtered, so that impurities can be prevented from entering the water pump during water replenishing; the water replenishing function is provided with a one-way valve, so that water flow backflushing is prevented, and the water pump is protected.

Description

Water inlet valve with filtering and water replenishing channel

Technical Field

The utility model belongs to the technical field of hanging stove water intaking valve technique and specifically relates to a take water intaking valve of filtering moisturizing passageway is related to.

Background

The water inlet valve for the wall-mounted furnace at present has the following problems:

firstly, the water inlet valve has no zero cold water function.

Secondly, the water inlet valve does not have a filter screen or a one-way valve, so that impurities can enter a circulating hot water channel during water replenishing, and the service life of the pump is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a water inlet valve with a filtering and water supplementing channel, which can realize the function of zero cold water by replacing the water inlet valve with a plug without a baffle; the water replenishing channel is designed to be filtered, so that impurities can be prevented from entering the water pump during water replenishing; the water replenishing has the function of a one-way valve, so that water flow backflushing is prevented, and the water pump is protected.

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

the utility model provides a take water intaking valve of filtering moisturizing passageway, includes the casing, the casing includes moisturizing passageway, moisturizing control channel, inhalant canal, exhalant canal, hot water passageway and water pump interface intercommunication, inhalant canal and exhalant canal pass through the water course intercommunication, moisturizing passageway intercommunication water course, moisturizing control channel installs the moisturizing device, the moisturizing device can communicate or cut off moisturizing passageway and hot water passageway, the end cap is installed to the moisturizing passageway, filters body and check valve, the check valve is pegged graft in the inner of filtering the body, the outer end of filtering the body is connected in the inner of end cap, the inner intercommunication water course of check valve, the moisturizing device can communicate or cut off filters body and hot water passageway, the end cap is connected in the outer end of moisturizing passageway.

The filter body comprises a filter part, and the water supplementing device can be communicated with or cut off the filter part and the hot water channel.

The outer end of the filter body is provided with a filter body notch and a filter body convex buckle which are circumferentially and uniformly distributed, the filter body notch and the filter body convex buckle are distributed in a staggered mode, the inner end of the plug is provided with a through groove and a positioning convex strip which are circumferentially and uniformly distributed, the positioning convex strip is correspondingly inserted into the filter body notch, and the filter body convex buckle is correspondingly buckled in the through groove.

The inner wall of the plug is provided with a baffle, and the plug is divided into an inner space and an outer space through the baffle.

The outer periphery of the convex end cap buckle is in clearance fit with the peripheral wall of the channel concave part, and the convex end cap buckle can be switched and moved in the channel concave part and the channel positioning hole.

When the convex buckle of the plug is positioned in the channel positioning hole, the convex buckle is propped against the inner peripheral wall of the water supplementing channel.

And a chute is arranged on one side of the channel concave part, which is far away from the channel positioning hole, the chute is gradually inclined downwards from one end, which is far away from the channel positioning hole, to one end, which is close to the channel positioning hole, of the chute, and one end, which is far away from the channel positioning hole, of the chute is higher than one end, which is close to the channel positioning hole, of the chute.

The check valve comprises a check valve cover, a check valve base, a check valve spring and a check valve sealing seat, wherein the check valve cover comprises a valve cover inner ring part and a valve cover outer ring part which are concentrically distributed inside and outside, the valve cover outer ring part and the valve cover inner ring part are connected through valve cover connecting strips which are uniformly distributed in the circumferential direction, the outer wall of the valve cover outer ring part is provided with a valve cover step part, the check valve base is assembled at the valve cover step part in an interference manner, the check valve base comprises a base inner ring plate and a base outer ring plate which are concentrically distributed inside and outside, the base inner ring plate and the base outer ring plate are connected through base connecting strips which are uniformly distributed in the circumferential direction, the upper end face of the base outer ring plate is provided with a sealing bulge which protrudes upwards, the outer edge of the upper end of the base outer ring plate extends upwards to form a base convex edge, the base convex edge is assembled at the valve cover step part in the interference manner, the check valve sealing seat comprises a spring seat and a sealing seat guide rod which is connected with the spring seat and is concentric with the spring seat, the up end of spring holder is equipped with the spring groove, the spring groove is located seal receptacle guide arm periphery, the outer fringe of seal receptacle guide arm is equipped with the guide arm rib, the internal perisporium step position of filter body is supported to the outer end of valve gap outer ring portion, the seal receptacle guide arm that is located the outer end passes the annular inner wall of the outer fringe butt valve gap inner ring portion of valve gap inner ring portion and guide arm rib, the seal receptacle guide arm that is located inner passes the annular inner wall of the outer fringe butt base inner ring plate of base inner ring plate and guide arm rib, the check valve spring is located the periphery of valve gap inner ring portion, the check valve spring outer end supports the valve gap connecting strip, the spring groove is gone into to the inner butt of check valve spring, the water course includes the water course intercommunicating pore rather than the intercommunication, the inner ring plate of base stretches into the water course intercommunicating pore.

And the outer end of the plug is provided with a convex ring, and the inner end surface of the convex ring props against the outer end surface of the water supplementing channel.

The outer end of the plug is provided with a clamping screw seat, and the clamping screw seat is provided with a clamping screw hole.

The utility model has the advantages that:

firstly, the function of carrying zero cold water is realized by replacing the plug without the baffle and installing a zero cold water pump on the clamping screw seat.

Secondly, the water replenishing channel is designed to be filtered, so that impurities can be prevented from entering the water pump during water replenishing; the plug and the filter body are designed together, and the plug is arranged on the front side, so that the replacement after sale is very convenient; the water replenishing has the function of a one-way valve, so that water flow backflushing is prevented, and the water pump is protected.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a bottom view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an exploded view of the water replenishing device according to the present invention;

FIG. 5 is an enlarged view at C of FIG. 4;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 7 is an enlarged view taken at D in FIG. 6;

fig. 8 is a first perspective view of the housing of the present invention;

fig. 9 is a second perspective view of the housing of the present invention;

FIG. 10 is a perspective view of the fitting of the plug, the filter body and the check valve of the present invention;

FIG. 11 is an exploded view of the fitting of the plug, the filter and the check valve of the present invention;

fig. 12 is an exploded view of the check valve of the present invention;

fig. 13 is a perspective view of the check valve base of the present invention.

In the figure: the water replenishing device comprises a shell 1, a water replenishing channel 11, a channel concave part 111, a chute 112, a channel positioning hole 113, a water replenishing channel bypass port 114, a water replenishing control channel 12, a limiting piece mounting seat 121, a limiting piece socket 122, a water inlet channel 13, a water channel 14, a water channel communication hole 141, a shell fixing hole 15, a water outlet channel 151, a hot water channel 152, a bypass channel 1521, a water pump interface 16, a flow sensor 2, a plug 3, a clamping screw seat 31, a clamping screw hole 32, a plug convex buckle 33, a bulge 34, a through groove 35, a positioning convex strip 36, a baffle 37, a convex ring 38, a filter body 4, a filter body notch 41, a filter body convex buckle 42, a filter part 43, a filter body sealing groove 44, an inserting plate 45, a water replenishing device 5, a water replenishing handle 51, a handle limiting part 511, a handle convex body 512, a water replenishing sealing body 52, a limiting column 521, a sealing ring 522, a sealing ring groove 5221, a transition ring 523, a transition ring convex body 5231, a limiting screw 53, The check valve comprises a limiting piece 54, a limiting piece convex part 541, a fixing screw 55, a water replenishing sealing ring 56, a check valve 6, a check valve cover 61, a valve cover outer ring part 611, a valve cover inner ring part 612, a valve cover connecting strip 613, a valve cover stepped part 614, a check valve base 62, a check valve base sealing groove 621, a base outer ring plate 622, a base inner ring plate 623, a base connecting strip 624, a base convex edge 625, a sealing protrusion 626, a check valve spring 63, a check valve sealing seat 65, a spring seat 651, a sealing seat guide rod 652, a guide rod rib 653 and a spring groove 654.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 13, a water inlet valve with a filtering and water replenishing channel comprises a housing 1, wherein the housing 1 is made of a plastic material.

Casing 1 includes moisturizing passageway 11, moisturizing control passage 12, inhalant canal 13, exhalant canal 151, hot water passageway 152 and water pump interface 16 intercommunication, inhalant canal 13 and exhalant canal 151 pass through water course 14 intercommunication, and what circulate in inhalant canal 13, exhalant canal 151, the water course 14 is normal atmospheric temperature water, installs flow sensor 2 in the water course 14. The water outlet passage 151 and the hot water passage 152 are connected to the heat exchange plate. The shell 1 is provided with shell fixing holes 15 penetrating through the front and the rear of the shell, and the shell fixing holes 15 are fixedly connected with the heat exchange plate. The hot water passage 152 is filled with hot water, and the hot water and the normal temperature water are not communicated with each other in normal use and only exchange heat, which is a conventional technology in the field.

11 intercommunication water course 14 of moisturizing passageway, moisturizing control channel 12 installs moisturizing device 5, moisturizing device 5 can communicate or cut off moisturizing passageway 11 and hot water passageway 152, when the hot water of used cyclically reduces to some extent and need carry out the moisturizing to it, opens moisturizing device 5, and normal atmospheric temperature water just can get into hot water passageway 152 and carry out the moisturizing operation.

The water replenishing channel 11 is provided with a plug 3, a filter body 4 and a one-way valve 6, the inner peripheral wall of the outer end of the water replenishing channel 11 is provided with a channel concave part 111 and a channel positioning hole 113, the channel concave part 111 is communicated with the channel positioning hole 113, the outer end of the channel concave part 111 penetrates through the outer end of the water replenishing channel 11, and the number of the channel concave parts 111 and the number of the channel positioning holes 113 are two.

The plug 3 is connected to the outer end of the water replenishing channel 11. The outer wall of the plug 3 is provided with a plug convex buckle 33 and a bulge 34, the plug convex buckle 33 and the bulge 34 are distributed in a staggered mode, and the number of the plug convex buckles 33 and the number of the bulges 34 are two.

The outer edge dimension of the plug buckle 33 is larger than the peripheral wall dimension of the water replenishing channel 11, the outer edge dimension of the plug buckle 33 is smaller than the peripheral wall dimension of the channel concave part 111, the outer edge of the plug buckle 33 is in clearance fit with the peripheral wall of the channel concave part 111, the plug buckle 33 can be switched and moved in the channel concave part 111 and the channel positioning hole 113, when the plug buckle 33 moves clockwise (namely the plug 3 is installed in the water replenishing channel 11) by taking the graph of fig. 9 as a reference, the plug buckle 33 moves from the channel concave part 111 into the channel positioning hole 113, and when the plug buckle 33 moves anticlockwise (namely the plug 3 is taken out of the water replenishing channel 11), the plug buckle 33 moves out of the channel positioning hole 113 and enters the channel concave part 111. After the plug convex buckle 33 is screwed into the channel positioning hole 113, the inner and outer end faces are attached to the channel positioning hole 113, so that the plug 3 cannot be pulled out by moving outwards but can be pulled out by rotating.

When the plug buckle 33 is located in the channel positioning hole 113, the protrusion 34 abuts against the inner peripheral wall of the water replenishing channel 11, the outer wall of the protrusion 34 is circular arc-shaped, and a certain force is required to rotate the plug 3 counterclockwise. The side of the channel recess 111 away from the channel positioning hole 113 is provided with a chute 112, the chute 112 is gradually inclined downwards from one end away from the channel positioning hole 113 to one end close to the channel positioning hole 113, and one end of the chute 112 away from the channel positioning hole 113 is higher than one end close to the channel positioning hole 113 (refer to fig. 9). When the plug 3 is rotated counterclockwise, the plug protrusion 33 is separated from the channel positioning hole 113 and enters the channel concave part 111, and finally is screwed out along the track of the inclined channel 112, so that the installation and the disassembly are both very convenient, and a wire clamping part is omitted.

With reference to fig. 12, the check valve 6 includes a check valve cover 61, a check valve base 62, a check valve spring 63 and a check valve sealing seat 65, the check valve cover 61 includes a valve cover inner ring portion 612 and a valve cover outer ring portion 611 concentrically distributed inside and outside, the valve cover outer ring portion 611 and the valve cover inner ring portion 612 are connected by valve cover connecting strips 613 uniformly distributed in the circumferential direction, a valve cover step portion 614 is disposed on an outer wall of the valve cover outer ring portion 611, the check valve base 62 is interference-assembled on the valve cover step portion 614, a check valve base sealing groove 621 is disposed on an outer wall of the check valve base 62, and an O-ring can be installed in the check valve base sealing groove 621 (the check valve base 62 is an internal universal component, in this embodiment, the O-ring is not installed, and sealing between the two is achieved only by interference-assembling the filter 4 and the check valve 6). The check valve base 62 comprises an inner base ring plate 623 and an outer base ring plate 622 which are concentrically distributed inside and outside, the inner base ring plate 623 and the outer base ring plate 622 are connected through base connecting strips 624 which are uniformly distributed in the circumferential direction, an upward protruding sealing protrusion 626 is arranged on the upper end face of the outer base ring plate 622, the outer edge of the upper end of the outer base ring plate 622 extends upwards to form a base convex edge 625, and the base convex edge 625 is assembled on the valve cover step 614 in an interference mode. The one-way valve seal seat 65 comprises a spring seat 651 and a seal seat guide rod 652 which is connected to the spring seat 651 and is concentric with the spring seat 651, the upper end face of the spring seat 651 is provided with a spring groove 654, the spring groove 654 is positioned at the periphery of the seal seat guide rod 652, the outer edge of the seal seat guide rod 652 is provided with a guide rod rib 653, and the cross section of the seal seat guide rod 652 is quincunx.

The outer end of the outer ring part 611 of the valve cover props against the step part of the inner peripheral wall of the filter body 4, the seal seat guide rod 652 at the outer end penetrates through the inner ring part 612 of the valve cover, and the outer edge of the guide rod rib 653 props against the annular inner wall of the inner ring part 612 of the valve cover. Seal holder guide 652 at the inner end passes through inner base ring plate 623 and the outer edge of guide rib 653 abuts the inner annular wall of inner base ring plate 623. The provision of the guide rib 653 facilitates guidance of the movement of the check valve seal holder 65.

The one-way valve spring 63 is located on the periphery of the bonnet inner ring portion 612, the outer end of the one-way valve spring 63 abuts against the bonnet connecting bar 613, the inner end of the one-way valve spring 63 abuts against the spring groove 654, and the inner end face of the spring seat 651 abuts against the sealing protrusion 626 under the action of the one-way valve spring 63. When the circulating hot water is supplemented by the normal-temperature water, the normal-temperature water can overcome the acting force of the one-way valve spring 63 to further open the one-way valve 6, and in the water supplementing process, the hot water cannot flow to a channel where the normal-temperature water is located through the one-way valve 6 due to the existence of the one-way valve 6.

The inner end of the one-way valve 6 is communicated with the water channel 14, the water channel 14 comprises a water channel communication hole 141 communicated with the water channel 14, and the inner ring plate 623 of the base of the one-way valve 6 extends into the water channel communication hole 141.

The check valve 6 is inserted into the inner end of the filter body 4, the inner end of the filter body 4 is provided with inserting plates 45 which are uniformly distributed in the circumferential direction, and the check valve 6 is inserted along the inserting plates 45 and is sealed with the filter body 4 outside the inserting plates 45 in an interference fit manner.

The filter body 4 is provided with a filter body sealing groove 44, an O-shaped ring is arranged in the filter body sealing groove 44, and the sealing between the filter body 4 and the inner peripheral wall of the water replenishing channel 11 is realized through the O-shaped ring of the filter body sealing groove 44.

The outer end of the filter body 4 is connected to the inner of the plug 3, the outer end of the filter body 4 is provided with a filter body gap 41 and a filter body convex buckle 42 which are circumferentially and uniformly distributed, the filter body gap 41 and the filter body convex buckle 42 are staggered and distributed, the inner end of the plug 3 is provided with a through groove 35 and a positioning convex strip 36 which are circumferentially and uniformly distributed, the positioning convex strip 36 is correspondingly inserted into the filter body gap 41, and the filter body convex buckle 42 is correspondingly buckled on the through groove 35.

The water supplementing device 5 can be communicated with or separate the filter body 4 and the hot water channel 152, the shell 1 is provided with a bypass channel 1521 communicated with the hot water channel 152, and the water supplementing device 5 can be communicated with or separate the filter body 4 and the bypass channel 1521.

The filter body 4 includes a filter part 43, and the water replenishing device 5 can connect or disconnect the filter part 43 and the hot water passage 152. The filtering portion 43 is an annular body provided with filtering holes, and the normal temperature water must pass through the filtering portion 43 to enter the channel where the hot water is located.

The inner wall of the plug 3 is provided with a baffle 37, and the plug 3 is divided into an inner space and an outer space by the baffle 37.

The moisturizing passageway 11 of this embodiment designs into the area and filters, can prevent impurity entering water pump when the moisturizing. The plug 3 and the filter body 4 are designed together, and the plug 3 is arranged on the front side, so that the replacement after sale is very convenient. The embodiment has the function of a one-way valve for water replenishing, prevents water flow from backflushing, and is favorable for protecting the water pump.

The outer end of the plug 3 is provided with a convex ring 38 and a clamping screw seat 31, and the inner end surface of the convex ring 38 props against the outer end surface of the water supplementing channel 11 after the plug 3 is installed.

The clip seat 31 is provided with a clip hole 32. The plug 3 with the baffle 37 of this embodiment can be used when the zero cold water function is not required. When the function of zero cold water is needed, the plug 3 without the baffle 37 can be replaced, so that the zero cold water pump can be installed on the clamping screw seat 31 and fixed by the clamping screw installed in the clamping screw hole 32.

The water replenishment control passage 12 of the present embodiment is vertically arranged. The water replenishing channel 11 is perpendicular to the water channel 14, the water replenishing channel 11 faces the front face, the water replenishing control channel 12 is located below the water replenishing channel 11 and is vertically distributed, a vertical water replenishing mode is adopted, the water replenishing control channel is in plane contact with a bottom plate (not shown in the drawing, the bottom plate is the prior art), the sealing requirement can be completely met (sealing is easy between the plane and the plane), mice can be prevented from entering, and the water replenishing control channel can be used for a condensing machine.

Moisturizing device 5 includes moisturizing handle 51, moisturizing seal 52 and stop screw 53, but moisturizing handle 51 swing joint in the outer end of moisturizing seal 52 and moisturizing handle 51 and moisturizing seal 52 synchronous revolution, moisturizing seal 52 is including the spacing post 521 that is located the outer end, the inner wall of moisturizing handle 51 is equipped with the spacing portion 511 of handle that matches with the outer wall profile of spacing post 521, the outer wall and two synchronous revolution of spacing post 521 are located to the spacing portion 511 cover of handle, and spacing post 521 outline is the hexagon, and the profile of the spacing portion 511 of handle also is the hexagon, can guarantee both synchronous revolutions like this.

Moisturizing sealing body 52 is including being located the inboard sealing ring 522 of spacing post 521, sealing ring 522's periphery wall is equipped with seal ring groove 5221, moisturizing sealing body 52 is through installing in seal ring groove 5221O type circle and moisturizing control channel 12 inner wall sealing connection. The inner wall of the water replenishing control channel 12 is provided with a step part, and the water replenishing sealing body 52 is arranged at the inner end surface of the sealing ring 522 until abutting against the step part of the inner wall of the water replenishing control channel 12.

The water replenishing sealing body 52 is in threaded connection with the inner wall of the water replenishing control channel 12, and the threaded part of the outer wall of the water replenishing sealing body 52 is positioned on the inner side of the sealing ring 522.

Moisturizing passageway 11 can be sealed to block up in moisturizing seal 52's the inner so that moisturizing passageway 11 and hot water passageway 152 cut off, and moisturizing sealing washer 56 is installed to moisturizing seal 52's the inner, and moisturizing passageway 11 includes rather than the moisturizing passageway by pass 114 that communicates, and moisturizing sealing washer 56 can be sealed to block up moisturizing passageway by pass 114.

The moisturizing seal 52 is including being located the inboard transition ring 523 of spacing post 521, the transition ring 523 is located between spacing post 521 and the sealing ring 522, and the outer wall of transition ring 523 is equipped with transition ring convex body 5231, moisturizing handle 51 is including being located the inboard handle convex body 512 of handle spacing portion 511, the external diameter of transition ring convex body 5231 is greater than the internal diameter of handle convex body 512, the handle convex body 512 can cross transition ring convex body 5231 when the spacing portion of handle 511 moves along spacing post 521. The cooperation of the handle protrusion 512 and the transition ring protrusion 5231 prevents the refill handle 51 from falling down during normal use, and when the refill handle 51 needs to be used, only a certain force is needed to pull the refill handle 51 downward.

The limit screw 53 is in threaded connection with the outer end of the water supplementing sealing body 52, and the water supplementing handle 51 can move along the water supplementing sealing body 52 and move outwards to be limited on the limit screw 53. The handle limiting portion 511 can move along the limiting column 521 and move outwards to be limited at the head of the limiting screw 53. Namely, the profile of the handle limiting part 511 is larger than the profile of the head of the limiting screw 53, and the limit screw 53 limits the outward movement stroke of the water replenishing handle 51, so that the water replenishing handle 51 cannot be separated.

The shell 1 is provided with a limiting piece mounting seat 121, the limiting piece mounting seat 121 is provided with a limiting piece 54, and the limiting piece 54 is mounted on the limiting piece mounting seat 121 through a fixing screw 55. The limiting piece 54 includes a limiting piece protrusion 541, and the water replenishing sealing body 52 may be screwed out until the outer end surface of the sealing ring 522 is limited by the limiting piece protrusion 541. The limiting piece convex portion 541 extends to the range of the water replenishing control channel 12, the limiting piece inserting opening 122 into which the limiting piece convex portion 541 correspondingly extends is arranged on the outer end face of the water replenishing control channel 12, and when the water replenishing sealing body 52 is screwed out along with the water replenishing handle 51, the water replenishing sealing body cannot be screwed out excessively and separated from the water replenishing control channel 12.

The water supplementing handle 51 is designed to be retractable, the water supplementing handle 51 retracts when water is not supplemented, and the water supplementing handle 51 is pulled out when water is supplemented, so that the flexibility of water supplementing is improved. Due to the fact that the water replenishing handle 51 is shortened, the water replenishing handle is not prone to damage during transportation, meanwhile, the wrench cannot interfere when the connecting pipe is installed, and the wrench is wide in force range. The operator can apply force after the refill handle 51 is pulled out.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a take water intaking valve of filtering moisturizing passageway, includes casing (1), its characterized in that: the shell (1) comprises a water supplementing channel (11), a water supplementing control channel (12), a water inlet channel (13), a water outlet channel (151), a hot water channel (152) and a water pump interface (16), the hot water channel (152) is communicated with the water pump interface (16), the water inlet channel (13) is communicated with the water outlet channel (151) through a water channel (14), the water supplementing channel (11) is communicated with the water channel (14), a water supplementing device (5) is installed on the water supplementing control channel (12), the water supplementing device (5) can be communicated with or cut off the water supplementing channel (11) and the hot water channel (152), a plug (3), a filter body (4) and a one-way valve (6) are installed on the water supplementing channel (11), the one-way valve (6) is inserted into the inner end of the filter body (4), the outer end of the filter body (4) is connected with the inner end of the plug (3), and the inner end of the one-way valve (6) is communicated with the water channel (14), the water supplementing device (5) can be communicated with or cut off the filter body (4) and the hot water channel (152), and the plug (3) is connected to the outer end of the water supplementing channel (11).

2. A fill valve with filtered refill passage as claimed in claim 1, wherein: the filter body (4) comprises a filter part (43), and the water supplementing device (5) can be communicated with or cut off the filter part (43) and the hot water channel (152).

3. A fill valve with filtered refill passage as claimed in claim 1, wherein: the outer end of the filter body (4) is provided with a filter body notch (41) and a filter body convex buckle (42) which are circumferentially and uniformly distributed, the filter body notch (41) and the filter body convex buckle (42) are staggered and distributed, the inner end of the plug (3) is provided with a through groove (35) and a positioning convex strip (36) which are circumferentially and uniformly distributed, the positioning convex strip (36) is correspondingly inserted into the filter body notch (41), and the filter body convex buckle (42) is correspondingly buckled in the through groove (35).

4. A fill valve with filtered refill passage as claimed in claim 1, wherein: the inner wall of the plug (3) is provided with a baffle (37), and the plug (3) is divided into an inner space and an outer space through the baffle (37).

5. A fill valve with filtered refill passage as claimed in claim 1, wherein: the inner peripheral wall of the outer end of the water supplementing channel (11) is provided with a channel concave portion (111) and a channel positioning hole (113), the channel concave portion (111) is communicated with the channel positioning hole (113), the outer end of the channel concave portion (111) penetrates through the outer end of the water supplementing channel (11), the outer wall of the plug (3) is provided with a plug convex buckle (33) and a protrusion (34), the plug convex buckle (33) and the protrusion (34) are distributed in a staggered mode, the size of the outer edge of the plug convex buckle (33) is larger than the size of the peripheral wall of the water supplementing channel (11), the outer edge of the plug convex buckle (33) is in clearance fit with the peripheral wall of the channel concave portion (111), and the plug convex buckle (33) can be switched and moved in the channel concave portion (111) and the channel positioning hole (113).

6. A fill valve with filtered refill passage as claimed in claim 5, wherein: when the plug convex buckle (33) is positioned in the channel positioning hole (113), the bulge (34) supports against the inner peripheral wall of the water replenishing channel (11).

7. A fill valve with filtered refill passage as claimed in claim 5, wherein: a chute (112) is arranged on one side, away from the channel positioning hole (113), of the channel concave portion (111), the chute (112) is gradually inclined downwards from one end, away from the channel positioning hole (113), to one end, close to the channel positioning hole (113), of the chute, and one end, away from the channel positioning hole (113), of the chute (112) is higher than one end, close to the channel positioning hole (113).

8. A fill valve with filtered refill passage as claimed in claim 1, wherein: the check valve (6) comprises a check valve cover (61), a check valve base (62), a check valve spring (63) and a check valve sealing seat (65), the check valve cover (61) comprises a valve cover inner ring part (612) and a valve cover outer ring part (611) which are concentrically distributed inside and outside, the valve cover outer ring part (611) and the valve cover inner ring part (612) are connected through valve cover connecting strips (613) which are uniformly distributed in the circumferential direction, a valve cover step part (614) is arranged on the outer wall of the valve cover outer ring part (611), the check valve base (62) is in interference fit with the valve cover step part (614), the check valve base (62) comprises a base inner ring plate (623) and a base outer ring plate (622) which are concentrically distributed inside and outside, the base inner ring plate (623) and the base outer ring plate (622) are connected through base connecting strips (624) which are uniformly distributed in the circumferential direction, and an upward convex sealing protrusion (626) is arranged on the upper end surface of the base outer ring plate (622), the outer edge of the upper end of the outer base ring plate (622) extends upwards to form a base convex edge (625), the base convex edge (625) is assembled on the step part (614) of the valve cover in an interference mode, the one-way valve seal seat (65) comprises a spring seat (651) and a seal seat guide rod (652) which is connected with the spring seat (651) and is concentric with the spring seat (651), the upper end face of the spring seat (651) is provided with a spring groove (654), the spring groove (654) is positioned at the periphery of the seal seat guide rod (652), the outer edge of the seal seat guide rod (652) is provided with a guide rod rib (653), the outer end of the outer valve cover ring part (611) is abutted against the step part of the inner peripheral wall of the filter body (4), the seal seat guide rod (652) positioned at the outer end penetrates through the inner valve cover ring part (612) and the outer edge of the guide rod rib (653) is abutted against the annular inner wall of the inner base ring part (612), the seal seat guide rod (652) positioned at the inner end penetrates through the inner base ring plate (623) and the outer edge of the guide rod rib (653) is abutted against the annular inner wall of the inner base ring plate (623), the check valve spring (63) is located on the periphery of the inner ring portion (612) of the valve cover, the outer end of the check valve spring (63) abuts against the valve cover connecting strip (613), the inner end of the check valve spring (63) abuts against the spring groove (654), the water channel (14) comprises a water channel communicating hole (141) communicated with the water channel, and the inner ring plate (623) of the base extends into the water channel communicating hole (141).

9. A fill valve with filtered refill passage as claimed in claim 1, wherein: the outer end of the plug (3) is provided with a convex ring (38), and the inner end face of the convex ring (38) is propped against the outer end face of the water supplementing channel (11).

10. A fill valve with filtered refill passage as claimed in claim 1, wherein: the outer end of the plug (3) is provided with a clamping screw seat (31), and the clamping screw seat (31) is provided with a clamping screw hole (32).