CN222962193U - A water inlet valve for a toilet tank - Google Patents

Abstract

The utility model provides a water inlet valve for a toilet water tank, which comprises a valve body, a water stopping assembly and a filter element, wherein a water inlet channel, a water outlet channel and a valve port are arranged in the valve body, the valve port is positioned between the water inlet channel and the water outlet channel, a second filter screen is integrally formed on one side of the water inlet channel, the valve port is positioned on one side of the water outlet channel to form a water stopping surface, the water stopping assembly comprises a water stopping pad movably arranged in the valve body, the water stopping pad is matched with the water stopping surface to open or close the valve port, the part of the water inlet channel positioned at the upper part of the valve body forms a filter cavity for installing the filter element, the filter cavity upwards penetrates through the valve body to form a top end opening at the top end of the valve body, the filter element is detachably arranged in the filter cavity through the top end opening, the valve port is arranged on the side wall of the filter cavity, the axis of the filter cavity is longitudinally arranged, and the axis of the valve port is arranged along the radial direction of the filter cavity. The water inlet valve provided by the utility model has reliable functions, can effectively avoid the problem that the water stop pad is attached or blocked by impurities to cause abnormal water stop, and can effectively improve the noise problem.

Description

Water inlet valve for toilet cistern

Technical Field

The utility model relates to a water inlet valve for a toilet water tank.

Background

Most of the water inlet valves for the existing toilet water tanks adopt the principle of pressure difference to control water inlet and water stop. It typically includes a water stop pad, which is typically provided with a very fine flow-through channel so that the water flow of the inlet channel can flow through the fine flow-through channel into the back pressure chamber. The flow passage is very fine, so that the flow passage is relatively easy to be blocked. In addition, if the impurities of the inflow water are attached to the water stop pad, the water stop pad may not normally seal the water stop. In order to avoid that the water-passing channel is blocked by impurities or the water-stopping cushion is attached with impurities so as not to stop water, a filter is usually arranged in the water-inlet channel of the water inlet valve, and the filter is used for blocking the impurities in the water.

The filter element in the prior art is designed to be detachable so as to be convenient for cleaning the filter element, and in order to facilitate the disassembly and assembly of the filter element, the filter element is installed on the upper part of the valve body by a plurality of water inlet valves in the prior art, so that the valve body can be installed or pulled out through an opening at the top of the valve body, and the disassembly and the assembly are more convenient and easier. And the water inlet valve of filter overhead, for the convenience of overall arrangement, its stagnant water subassembly sets up in the lateral part of valve body generally.

Disclosure of utility model

The inventor finds that the water inlet valve arranged on the top of the filter element in the prior art has the following two defects that firstly, impurities intercepted by the filter element are likely to be brought to the downstream of the filter element in the process of disassembling and cleaning the filter element, so that after the cleaned filter element is reinstalled, the impurities positioned at the downstream of the filter element cannot be intercepted again by the filter element, and further can flow to the position of a water passing channel of a water stopping pad to block the water passing channel or be adhered to the water stopping pad to cause the water inlet valve to stop water normally, secondly, when water is fed, water flow filtered by the filter element flows to the downstream from the position of a valve port opened by the water stopping pad after being turned by 90 degrees, and the water flow is turned sharply at the position of the valve port to cause the water inlet to flow back to collide on one hand, and simultaneously collide with the pipe wall to cause larger noise at the position, so that the using experience is reduced.

In order to solve the technical problems, one of the purposes of the utility model is to provide a water inlet valve with more reliable functions, which can prevent the water stop pad from being attached or blocked by impurities, and effectively avoid the problem that the water stop pad cannot stop water normally;

The second purpose of the present utility model is to provide a water inlet valve capable of improving noise so as to improve the experience of product use.

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

a toilet tank fill valve comprising:

the valve body is internally provided with a water inlet channel, a water outlet channel and a valve port, the valve port is positioned between the water inlet channel and the water outlet channel, a second filter screen is integrally formed on one side of the valve port positioned on the water inlet channel, and a water stop surface is formed on one side of the valve port positioned on the water outlet channel;

The water stopping assembly comprises a water stopping pad movably arranged in the valve body, and the water stopping pad is matched with the water stopping surface to open or close the valve port;

The filter, the water inlet channel is located the part on valve body upper portion forms and is used for installing the filter chamber of filter, the filter upwards runs through the valve body is in order to form the open-top in the top of valve body, the filter passes through open-top detachably locates in the filter chamber, the valve port is located the lateral wall of filter chamber, the axis of filter chamber is along vertical setting, the axis of valve port is along the radial direction setting of filter chamber.

In a preferred embodiment, the filter member is provided with a first filter screen, and the first filter screen is arranged at an interval upstream of the second filter screen.

In a preferred embodiment, the filter member is provided with a first filter screen, the first filter screen is located upstream of the second filter screen, and the first filter screen is located below the second filter screen.

In a preferred embodiment, the filter chamber forms a three-way structure having the top end opening, the bottom end opening, and the side opening, the top end opening and the bottom end opening of the filter chamber are disposed opposite each other, and the valve port forms the side opening of the filter chamber.

In a preferred embodiment, the filter element is capable of carrying dirt trapped on the side of the second filter screen facing away from the water stop pad when removed from the top opening.

In a preferred embodiment, the filter element is equipped with filter segment, linkage segment and seal section in proper order along inserting the direction of filter chamber, the filter segment is equipped with first filter screen the seal section seals the filter chamber the external diameter size of linkage segment is less than the internal diameter size of filter chamber, the filter element inserts when the filter chamber is in place, the position of linkage segment with the second filter screen corresponds, the seal section with the filter segment is located respectively the upper and lower both sides of second filter screen.

In a preferred embodiment, the first filter screen is conical, the outer diameter of the first filter screen gradually increases along the direction of inserting the first filter screen into the filter cavity, and the outer diameter of the bottom end of the first filter screen is matched with the inner diameter of the filter cavity.

In a preferred embodiment, the filter further comprises an end cover, wherein the end cover is screwed on the top end opening and is rotatably connected with the filter element, and the filter element is limited in the filter cavity when the end cover is screwed on the top end opening; when the threads of the end cover and the top end opening are unscrewed, the filter piece can be pulled out of the filter cavity.

In a preferred embodiment, the filter cavity is cylindrical, the side wall of the second filter screen on one side of the filter cavity is arranged along the radian of the inner wall of the filter cavity, and the side wall of the second filter screen on one side far away from the filter cavity extends towards one side of the water stop surface along the thickness direction.

In a preferred embodiment, the water stopping assembly further comprises a pressing cover and a lifting rod, the pressing cover is fixedly connected with the side part of the valve body, a back pressure cavity is formed by surrounding one side, facing away from the water stopping surface, of the water stopping pad, a pressure release hole communicated with the back pressure cavity is formed in the pressing cover, the lifting rod is rotationally arranged on the side part of the valve body, one end of the lifting rod is matched with the pressure release hole in an opening and closing mode, the other end of the lifting rod is connected with a buoyancy assembly, and the water stopping pad moves transversely.

Compared with the prior art, the utility model has at least the following beneficial effects:

1. According to the utility model, the second filter screen is integrally formed at the position of the valve port at one side of the water inlet channel, and the second filter screen is positioned between the filter element and the water stopping component in the water flow direction, so that two-stage filtration is formed, impurities can be further effectively intercepted, particularly, the problem that the filter element brings the impurities intercepted by the filter element to the water stopping component in the process of pulling out the filter cavity can be effectively avoided, and a barrier is formed at the front end of the water stopping component, so that the water stopping component is not easy to be blocked or attached by the impurities, and reliable water stopping is realized.

2. The axis of the filter cavity of the water inlet valve is arranged along the longitudinal direction, the axis of the valve port is arranged along the radial direction of the filter cavity, and the water flow of the water inlet valve with the internal arrangement turns at the valve port by 90 degrees. Therefore, the second filter screen is integrally formed at the position (namely, the 90-degree turning position) of the valve port on one side of the water inlet channel, on one hand, the second filter screen is similar to a hollowed water baffle plate, and can prevent part of water flow from flowing back and colliding at the turning position, on the other hand, the second filter screen can disperse one large water flow at the turning position to form a plurality of small water flows, the flow directions of the small water flows tend to be consistent, the single energy is smaller, so that the steady flow effect is achieved, the energy loss is reduced, and the noise generated by the collision of the single small water flow with the pipe wall is also smaller, thereby achieving the effect of reducing the integral noise of the water inlet valve.

3. The second filter screen is integrally formed in the valve body, so that the structure is simple, the second filter screen is not required to be independently assembled, and the whole assembly of the water inlet valve is convenient;

In summary, the second filter screen is integrally formed at the position of the valve port on one side of the water inlet channel, so that the filter can form multistage filtration with the filter element at the front end to further effectively intercept impurities, and the problem that the filter element can not stop water due to the fact that the filter element brings the impurities intercepted by the filter element to the water stopping assembly in the process of pulling out the filter cavity is effectively avoided. The water stopping function of the water inlet valve is more reliable, the noise is smaller and the conception is ingenious by simply arranging the second filter screen at the specific position of the valve port on one side of the water inlet channel.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model.

Wherein:

FIG. 1 is a schematic perspective view of a fill valve according to an embodiment of the present utility model;

FIG. 2 is an exploded perspective view of a fill valve in accordance with one embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a fill valve in accordance with an embodiment of the present utility model;

FIG. 4 is a partial cross-sectional view of a fill valve in accordance with an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a cross-sectional view of an exploded view of a fill valve in accordance with an embodiment of the present utility model;

FIG. 7 is a perspective view of the valve body of the inlet valve according to one embodiment of the present utility model;

FIG. 8 is another angular perspective view of the valve body of the inlet valve of an embodiment of the utility model;

Fig. 9 is a perspective view showing a filter member of a water inlet valve according to an embodiment of the present utility model.

The reference numerals in the drawings are:

10-valve body, 11-water inlet channel, 111-filter cavity, 1111-top end opening, 1112-bottom end opening, 12-water outlet channel, 13-valve port, 131-water stop surface and 14-second filter screen;

20-of a water stopping component, 21-of a water stopping pad, 22-of a gland, 221-of a pressure relief hole, 23-of a lifting rod and 24-of a back pressure cavity;

30-filtering parts, 31-filtering sections, 311-first filter screens, 32-connecting sections, 33-sealing sections and 331-sealing rings;

40-end caps;

a 50-buoyancy assembly;

L1-the axis of the filter chamber;

l2-axis of the valve port.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 9, a water inlet valve for a toilet tank according to a preferred embodiment of the present utility model includes:

The valve body 10 is internally provided with a water inlet channel 11, a water outlet channel 12 and a valve port 13, wherein the valve port 13 is positioned between the water inlet channel 11 and the water outlet channel 12, and water flows from the water inlet channel 11 to the water outlet channel 12 after passing through the valve port 13 so as to flow into a water tank (not shown) of the toilet;

The water stopping assembly 20 comprises a water stopping pad 21 movably arranged in the valve body 10, wherein the water stopping pad 21 is matched with the water stopping surface 131 to open or close the valve port 13, specifically, the water stopping pad 21 closes the valve port 13 when being attached to the water stopping surface 131, so that water stopping of the water inlet valve is realized, and the water stopping pad 21 opens the valve port 13 when being separated from the water stopping surface 131, so that water inlet of the water inlet valve is realized;

The filter member 30, the portion of the water inlet passage 11 located at the upper portion of the valve body 10 forms a filter chamber 111 for mounting the filter member 30, that is, the filter chamber 111 is a part of the water inlet passage 11. The filter chamber 111 penetrates the valve body 10 upward to form a top opening 1111 at the top end of the valve body 10, and the filter member 30 is detachably provided in the filter chamber 111 through the top opening 1111 so that the filter member 30 can be removed for cleaning. Referring to fig. 4, the valve port 13 is provided on the side wall of the filter cavity 111, the axis L1 of the filter cavity 111 is arranged along the longitudinal direction, and the axis L2 of the valve port 13 is arranged along the radial direction of the filter cavity 111, that is, the water inlet valve of the utility model is an improvement on the structure of the water inlet valve with 90-degree turning of the water flow of the filter cavity 111 at the valve port 13.

In this embodiment, referring to fig. 3 and 4, the filter 30 is provided with the first filter screen 311, and the first filter screen 311 is disposed at intervals upstream of the second filter screen 14, that is, the first filter screen 311 is integrally located upstream of the second filter screen 14, specifically, the first filter screen 311 is integrally located below the second filter screen 14, so that the second filter screen 14 and the first filter screen 311 form multi-stage filtration, and the filtration effect is better. And the second filter screen 14 and the first filter screen 311 are arranged at intervals, the space for storing impurities in the embodiment is increased and thus the blockage is less likely compared with the scheme of arranging two-stage filtration on the filter element 30 itself in the prior art.

In this embodiment, the size of the hole of the second filter 14 is preferably larger than that of the first filter 311, so that the effect is better because the second filter 14 can intercept impurities without limiting the flow of the through-flow.

In this embodiment, the filter chamber 111 forms a three-way structure having a top opening 1111, a bottom opening 1112, and a side opening, the top opening 1111 and the bottom opening 1112 of the filter chamber 111 are disposed opposite to each other, and the valve port 13 forms the side opening of the filter chamber 111.

In this embodiment, referring to fig. 6 and 9, the filter 30 is preferably constructed such that a filter segment 31, a connection segment 32 and a sealing segment 33 are sequentially provided in the direction of insertion into the filter cavity 111. The filter section 31 is provided with a first filter screen 311, and the sealing section 33 is provided with a sealing ring 331 to seal the filter cavity 111, and the outer diameter of the connecting section 32 is smaller than the inner diameter of the filter cavity 111. When filter element 30 is inserted into filter cavity 111, connecting section 32 is positioned corresponding to second filter 14, and sealing section 33 and filter section 31 are positioned on upper and lower sides of second filter 14.

In order to make the anti-blocking effect better, in this embodiment, when the filter 30 is taken out from the top opening 1111, dirt intercepted on the side of the second filter screen 14 opposite to the water stop pad 21 (i.e. the side of the second filter screen 14 located on the filter cavity 111) can be carried out, so that in the process of cleaning the filter 30, the second filter screen 14 is cleaned and blocked simultaneously, which is convenient and simple.

Further preferably, in this embodiment, the first filter screen 311 is conical, and its external diameter gradually increases along the direction of inserting the filter chamber 111, compared with the cylindrical filter element adopted in the prior art, the conical design can make the filtration area of the first filter screen 311 bigger on the one hand, improves the filter effect, and on the other hand can also increase the water passing space between the outer wall of the first filter screen 311 and the inner wall of the filter chamber 111, and this water passing space also serves as the storage impurity space of the second filter screen 14 simultaneously, thereby more impurities can be filtered, and the filter is less prone to blockage.

In this embodiment, the outer diameter of the bottom end of the first filter screen 311 is designed to match the inner diameter of the filter chamber 111, that is, the bottom end of the first filter screen 311 is brought into contact with the inner wall of the filter chamber 111. In this way, when the filter 30 is taken out from the top opening 1111, the bottom end of the first filter screen 311 can bring out the dirt blocked on the side of the second filter screen 14 facing away from the water stop pad 21, so that the purpose of bringing out the dirt blocked on the side of the second filter screen 14 facing away from the water stop pad 21 when the filter 30 is taken out from the top opening 1111 is achieved, and the structure is simple and reliable.

In this embodiment, the water inlet valve further comprises an end cover 40, the end cover 40 is screwed to the top opening 1111 and rotatably connected with the filter element 30, the filter element 30 is limited in the filter cavity 111 when the end cover 40 is screwed to the top opening 1111, and the filter element 30 can be pulled out of the filter cavity 111 through the end cover 40 when the end cover 40 is unscrewed from the top opening 1111. The filter element 30 is limited and pulled by arranging the end cover 40, so that the disassembly and assembly are more convenient. And the end cover 40 is fixedly connected with the valve body 10 in a threaded connection mode, so that the connection is firmer, and the problem that the filter element 30 and the end cover 40 are ejected out of the filter cavity 111 by the water pressure of the water inlet channel 11 can be effectively avoided.

In this embodiment, the filter cavity 111 is cylindrical, and the side wall of the second filter 14 on one side of the filter cavity 111 is disposed along the arc of the inner wall of the filter cavity 111, so that the second filter 14 and the valve body 10 are formed integrally. In some embodiments, the side of second filter 14 away from filter cavity 111 may extend toward the side of water stop surface 131 in the thickness direction, that is, the wall thickness of second filter 14 may be designed to be larger, so that the rectifying and stabilizing effects of second filter 14 may be better.

In this embodiment, the water stop assembly 20 further includes a pressing cover 22 and a lifting rod 23, and the pressing cover 22 is fixedly connected with the side portion of the valve body 10. The back pressure cavity 24 is surrounded by the gland 22 and the side of the water stop pad 21, which is opposite to the water stop surface 131, and the gland 22 is provided with a pressure relief hole 221 communicated with the back pressure cavity 24. The lifting rod 23 is rotatably arranged on the side of the valve body 10, one end of the lifting rod 23 is matched with the pressure release hole 221 in an opening and closing manner, the other end of the lifting rod is connected with a buoyancy assembly 50, and the water stop pad 21 moves transversely. The structure of the water stopping assembly 20 adopts the prior known structure, the working principle of water inflow and water stopping is not developed in detail here, namely when the buoyancy assembly 50 falls along with the water level in the toilet water tank, the lifting rod 23 is driven to open the pressure relief hole 221, the water stopping pad 21 can be far away from the water stopping surface 131 under the action of the water pressure of the water inflow channel 11 to open the valve port 13, when the buoyancy assembly 50 floats along with the water level in the toilet water tank, the lifting rod 23 is driven to close the pressure relief hole 221, and the water stopping pad 21 can be attached to the water stopping surface 131 under the action of the back pressure cavity 24 to close the valve port 13.

According to the water inlet valve, the second filter screen is integrally formed at the position of the valve port on one side of the water inlet channel and is positioned between the filter piece and the water stopping component in the water flow direction, so that two-stage filtration is formed, impurities can be further effectively intercepted, particularly, the problem that the filter piece brings impurities intercepted by the filter piece to the water stopping component in the process of pulling out the filter cavity can be effectively avoided, a barrier is formed at the front end of the water stopping component, the water stopping component is not easy to be blocked or attached by the impurities, and reliable water stopping is realized.

In the water inlet valve, the axis L1 of the filter cavity is longitudinally arranged, the axis L2 of the valve port is radially arranged in the filter cavity, and the water flow of the water inlet valve with the internal arrangement turns at the valve port by 90 degrees. Therefore, the second filter screen is integrally formed at the position (namely, the 90-degree turning position) of the valve port on one side of the water inlet channel, on one hand, the second filter screen is similar to a hollowed water baffle plate, and can prevent part of water flow from flowing back and colliding at the turning position, on the other hand, the second filter screen can disperse one large water flow at the turning position to form a plurality of small water flows, the flow directions of the small water flows tend to be consistent, the single energy is smaller, so that the steady flow effect is achieved, the energy loss is reduced, and the noise generated by the collision of the single small water flow with the pipe wall is also smaller, thereby achieving the effect of reducing the integral noise of the water inlet valve.

The second filter screen is integrally formed in the valve body, so that the structure is simple, the second filter screen is not required to be independently assembled, and the whole assembly of the water inlet valve is convenient;

In summary, the second filter screen is integrally formed at the position of the valve port on one side of the water inlet channel, so that the filter can form multistage filtration with the filter element at the front end to further effectively intercept impurities, and the problem that the filter element can not stop water due to the fact that the filter element brings the impurities intercepted by the filter element to the water stopping assembly in the process of pulling out the filter cavity is effectively avoided. The water stopping function of the water inlet valve is more reliable, the noise is smaller and the conception is ingenious by simply arranging the second filter screen at the specific position of the valve port on one side of the water inlet channel.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the utility model are adopted, all within the scope of the utility model.

Claims (10)

1. A toilet tank fill valve comprising:

the valve body is internally provided with a water inlet channel, a water outlet channel and a valve port, the valve port is positioned between the water inlet channel and the water outlet channel, a second filter screen is integrally formed on one side of the valve port positioned on the water inlet channel, and a water stop surface is formed on one side of the valve port positioned on the water outlet channel;

The water stopping assembly comprises a water stopping pad movably arranged in the valve body, and the water stopping pad is matched with the water stopping surface to open or close the valve port;

The filter, the water inlet channel is located the part on valve body upper portion forms and is used for installing the filter chamber of filter, the filter upwards runs through the valve body is in order to form the open-top in the top of valve body, the filter passes through open-top detachably locates in the filter chamber, the valve port is located the lateral wall of filter chamber, the axis of filter chamber is along vertical setting, the axis of valve port is along the radial direction setting of filter chamber.

2. The inlet valve of claim 1 wherein a first filter screen is provided on the filter member, the first filter screen being spaced upstream of the second filter screen.

3. The inlet valve of claim 1, wherein the filter member has a first filter screen disposed thereon, the first filter screen being located upstream of the second filter screen, and the first filter screen being located below the second filter screen.

4. The fill valve of claim 1, wherein the filter chamber forms a three-way structure having the top, bottom and side openings, the top and bottom openings of the filter chamber being disposed opposite one another, the valve port forming the side opening of the filter chamber.

5. The fill valve of claim 1, wherein said filter member is adapted to carry dirt trapped on a side of said second filter screen facing away from said water stop pad when removed from said top opening.

6. The water inlet valve according to claim 3, wherein the filter element is sequentially provided with a filter section, a connecting section and a sealing section along the direction of inserting the filter cavity, the filter section is provided with a first filter screen, the sealing section seals the filter cavity, the outer diameter of the connecting section is smaller than the inner diameter of the filter cavity, when the filter element is inserted into the filter cavity in place, the position of the connecting section corresponds to the second filter screen, and the sealing section and the filter section are respectively positioned on the upper side and the lower side of the second filter screen.

7. The fill valve of claim 6, wherein said first filter screen has a conical shape with an outer diameter that tapers in a direction of insertion into said filter chamber, and wherein an outer diameter of a bottom end of said first filter screen matches an inner diameter of said filter chamber.

8. The fill valve of claim 1, further comprising an end cap threadably received in said top opening and rotatably coupled to said filter, wherein said end cap threadably engages said top opening to retain said filter within said filter cavity, and wherein said end cap threadably disengages said top opening to pull said filter out of said filter cavity.

9. The water inlet valve according to claim 1, wherein the filter chamber is cylindrical, and the side wall of the second filter screen positioned at one side of the filter chamber is arranged along the radian of the inner wall of the filter chamber;

The side wall of the second filter screen far away from one side of the filter cavity extends towards one side of the water stop surface along the thickness direction.

10. The water inlet valve according to claim 1, wherein the water stopping assembly further comprises a pressing cover and a lifting rod, the pressing cover is fixedly connected with the side part of the valve body, a back pressure cavity is formed by surrounding one side, facing away from the water stopping surface, of the pressing cover and the water stopping pad, a pressure relief hole communicated with the back pressure cavity is formed in the pressing cover, the lifting rod is rotatably arranged on the side part of the valve body, one end of the lifting rod is matched with the pressure relief hole in an opening and closing mode, the other end of the lifting rod is connected with a buoyancy assembly, and the water stopping pad moves transversely.