General water tank water inlet valve

Abstract

The utility model discloses a general water tank water inlet valve, including valve body, plug, telescopic pole and floating ball, the valve body is provided in the toilet water tank bottom, the plug is provided in the valve body up and down movably to open and close the water inlet valve, the telescopic pole is vertically provided, the floating ball is connected with the plug through the telescopic pole, and the floating ball is connected with the plug through the telescopic pole. The floating ball drives the telescopic rod and the plug to ascend or descend along with the change of the water level in the closestool water tank, so that the water inlet valve is closed or opened; according to the utility model, the floating ball is connected with the plug through the vertically arranged telescopic rod, and the telescopic rod can be telescopically adjusted in length, so that the height of the floating ball can be adjusted to adapt to toilet water tanks with different sizes, and the water inlet quantity of the toilet water tank can be adjusted under the condition that the size of the toilet water tank is fixed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of water inlet valve, especially relates to a general water tank water inlet valve. BACKGROUND

[0002] The water inlet valve of the conventional closestool water tank on the market is mostly of upper water inlet structure, and lacks lower water inlet structure, because the lower water inlet valve mostly has problems of insufficient control precision, easy leakage and difficult maintenance, and the float ball water inlet valve solves the above problems.

[0003] The existing float ball water inlet valve mostly adopts a lever structure to connect the float ball and the valve core of the water inlet valve, one end of the lever structure is connected with the float ball, the other end is generally connected with the valve core perpendicularly, and the middle part of the lever structure is further pivoted with the water inlet valve body, the structure is complex, is not easy to install, and occupies a large horizontal space, affecting the installation of other water devices inside the water tank, and there is also a structure that the float ball is connected with the water inlet valve vertically, such as the automatic water inlet valve with vertically-central lifting of float ball disclosed in patent CN98219620.2, the water inlet structure is provided with a plurality of chambers in the valve body, the structure is relatively complex, and the water level in the water tank rises to push the float ball to float to close the water inlet valve, the final water level of the water tank is controlled by the height of the float ball, if the size of the water tank is fixed, the height of the float ball also controls the water inlet amount of the water tank, and the height of the float ball of the existing float ball water inlet valve is fixed, the water inlet amount cannot be adjusted, it is also difficult to adapt to water tanks of different sizes, the universality is poor, and the market demand cannot be met. SUMMARY

[0004] The utility model aims at providing a general water tank water inlet valve, the height of the float ball can be adjusted to adjust the water inlet amount of the closestool water tank, and the water tank of different sizes can be adapted, the structure is simple, and the occupied space is small.

[0005] To achieve the above purpose, the solution of the utility model is as follows: a general water tank water inlet valve, including valve body, plug, telescopic rod and float ball, the valve body is arranged at the bottom of the closestool water tank, the plug is movably arranged in the valve body to open and close the water inlet valve, the telescopic rod is vertically arranged, the float ball is connected with the plug through the telescopic rod, and the float ball is driven by the change of the water level in the closestool water tank to drive the telescopic rod and the plug to rise or fall, so as to close or open the water inlet valve.

[0006] Further, the telescopic rod includes an inner rod and an outer rod, the bottom of the outer rod is connected with the plug, the inside of the outer rod is hollow, the bottom of the inner rod is movably arranged in the outer rod, and the bottom of the inner rod is provided with a locking structure for locking or unlocking with the outer rod, and the top of the inner rod is connected with the float ball.

[0007] Furthermore, the locking structure is an elastic sphere provided at the bottom of the inner rod, the elastic sphere is interference fit with the inner wall of the outer rod, and the top of the outer rod is provided with an opening with a diameter smaller than that of the elastic sphere.

[0008] Furthermore, the locking structure is an external thread provided at the bottom of the inner rod, and the inner wall of the outer rod is provided with an internal thread to be threadedly connected to the bottom of the inner rod.

[0009] Furthermore, a water inlet channel and a water outlet channel are provided inside the valve body, a water outlet connected to the water outlet channel is provided on the top of the water inlet channel, a diaphragm for opening and closing the water outlet is provided above the water outlet, the valve body is provided with a pressure relief channel above the diaphragm, a pressure relief hole is provided on the top of the pressure relief channel, the plug is movably arranged in the pressure relief channel to open and close the pressure relief hole, and a back pressure chamber connected to the pressure relief channel is formed between the plug and the diaphragm.

[0010] Furthermore, a spring connected to the diaphragm is provided in the back pressure chamber, a ejector pin is provided in the middle of the spring, a water supply hole is provided in the middle of the diaphragm, the ejector pin is passed through the water supply hole, and a through hole connected to the back pressure chamber and a fixing hole for fixing the ejector pin are provided at the bottom of the pressure relief channel.

[0011] Furthermore, a diaphragm seat is provided on the water outlet, the bottom opening of the diaphragm seat is connected to the water outlet, the side wall of the diaphragm seat is provided with a first water hole, and the side wall of the valve body on the outer periphery of the diaphragm seat is provided with a second water hole, the first water hole and the second water hole are connected to form a water outlet channel, and the diaphragm is arranged on the diaphragm seat to open and close the bottom opening of the diaphragm seat.

[0012] Furthermore, the valve body includes a water inlet joint and a pressure relief joint, the pressure relief joint is arranged above the water inlet joint and is sealed with the water inlet joint, the water inlet channel is arranged in the lower part of the water inlet joint, the diaphragm seat is arranged in the upper part of the water inlet joint and is located between the water outlet and the pressure relief joint, the second water hole is arranged on the upper side wall of the water inlet joint, and the pressure relief channel is arranged in the pressure relief joint.

[0013] Furthermore, the valve body also includes a fixed joint, which is fixed on the top of the pressure relief joint. A guide channel connected to the pressure relief channel is provided inside the fixed joint, and the bottom of the telescopic rod is movably arranged in the guide channel.

[0014] Furthermore, a connecting rod extending into the guide channel is provided on the top of the plug, the bottom of the telescopic rod is threadedly connected to the connecting rod, and the top of the telescopic rod is threadedly connected to the float.

[0015] After adopting the above solution, the beneficial effects of the utility model are:

[0016] The float of this utility model is connected to the plug via a vertically mounted telescopic rod. This vertical connection between the float and the valve body creates a simple structure that does not occupy the lateral space of the toilet tank, thereby preventing interference with the installation of other water components within the tank. More importantly, the telescopic rod can be adjusted to its length, thereby adjusting the height of the float to accommodate toilet tanks of varying sizes. This provides excellent versatility and meets market demand. Furthermore, even with a fixed tank size, the water intake can be adjusted to meet diverse usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0020] Figure 4 This is an exploded view of the utility model;

[0021] Figure 5 This is a structural diagram of the diaphragm seat of the utility model;

[0022] Figure 6 This is a schematic diagram of the utility model installed inside the toilet tank.

[0023] Description of labels:

[0024] 1. Valve body; 11. Water inlet channel; 12. Water outlet; 13. Pressure relief channel; 14. Pressure relief hole; 15. Back pressure chamber; 16. Second water hole; 17. Water inlet joint; 18. Pressure relief joint; 181. Annular sealing cover; 19. Fixed joint; 191. Guide channel; 2. Diaphragm; 21. Water supply hole; 22. Annular convex edge; 3. Plug; 31. Connecting rod; 4. Spring; 41. Ejector pin; 5. Float; 6. Telescopic rod; 61. Inner rod; 62. Outer rod; 63. Elastic sphere; 7. Toilet tank; 8. Diaphragm seat; 81. First water hole; 9. Water inlet pipe. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-6As shown, the utility model provides a universal water tank inlet valve, including a valve body 1, a diaphragm 2, a plug 3, a spring 4, a float 5 and a telescopic rod 6. The valve body 1 is arranged at the bottom of the toilet water tank 7, so that the water inlet valve has a bottom water inlet structure; the plug 3 is arranged inside the valve body 1 and can be moved up and down to control the opening and closing of the water inlet valve. Specifically, the valve body 1 is provided with an inlet channel 11 and a water outlet channel. The bottom of the inlet channel 11 is connected to an inlet pipe 9 to connect natural water to the water inlet valve. The top of the inlet channel 11 is provided with an outlet 12 connected to the outlet channel. The diaphragm 2 is arranged above the outlet 12. The deformation of the diaphragm 2 can block or open the outlet 12, thereby disconnecting or connecting the inlet channel 11 and the outlet channel to realize the opening and closing of the water inlet valve.

[0027] The valve body 1 is provided with a pressure relief channel 13 above the diaphragm 2. A pressure relief hole 14 is provided at the top of the pressure relief channel 13. The plug 3 is movably arranged in the pressure relief channel 13 to open and close the pressure relief hole 14. A back pressure chamber 15 is formed between the plug 3 and the diaphragm 2. The back pressure chamber 15 is connected to the pressure relief channel 13. A spring 4 connected to the diaphragm 2 is provided in the back pressure chamber 15. When the diaphragm 2 blocks the water outlet 12, the spring 4 is in a stretched and reset state. The telescopic rod 6 is arranged vertically, and the top and bottom of the telescopic rod 6 are connected to the float 5 and the plug 3 respectively. The telescopic rod 6 is a telescopic connecting rod structure, and its length can be adjusted. When the toilet tank 7 is drained and the water level drops, the float 5 falls due to gravity, and at the same time drives the telescopic rod 6 and the plug 3 down until the plug 3 opens the pressure relief hole 14 and the back pressure chamber 15 is depressurized. The diaphragm 2 is pushed upward by the water flow to compress the spring 4 and open the water outlet 12. The water inlet channel 11 is connected with the water outlet channel, and the water flows out from the water outlet channel into the toilet tank 7, allowing the water inlet valve to enter. As the water inlet valve enters, the water level inside the toilet tank 7 rises. After the water level rises to the position of the float 5, the float 5 rises due to buoyancy, and at the same time drives the telescopic rod 6 and the plug 3 up until the plug 3 blocks the pressure relief hole 14. The pressure in the back pressure chamber 15 increases, and the spring 4 stretches and resets the diaphragm 2, causing it to block the water outlet 12, disconnecting the water inlet channel 11 from the water outlet channel, and allowing the water inlet valve to close and enter.

[0028] Specifically, a pin 41 is provided in the middle of the spring 4, and a water supply hole 21 is provided in the middle of the diaphragm 2. The pin 41 is inserted into the water supply hole 21. After the plug 3 blocks the pressure relief hole 14, the water flow of the water inlet channel 11 will flow into the back pressure chamber 15 from the water supply hole 21. The diaphragm 2 will move downward under the push of the water flow to stretch the spring 4 and block the water outlet 12.

[0029] Therefore, the floating ball 5 is connected with the valve body 1 through the vertical telescopic rod 6, the floating ball 5 is vertically connected with the valve body 1, the structure is simple, the horizontal space of the closestool water tank 7 is not occupied, and therefore the installation of other water devices in the water tank is not affected. In addition, the telescopic rod 6 can be telescopically adjusted in length, so that the height of the floating ball 5 can be adjusted. The higher the height of the floating ball 5 is, the higher the water level in the closestool water tank 7 needs to be raised to drive the floating ball 5 to float, and then the water inlet valve is closed, and vice versa. Therefore, the water inlet valve can be adapted to closestool water tanks 7 of different sizes, has good universality, meets market demand, and can also adjust the water inflow of the closestool water tank 7 under the condition that the size of the closestool water tank 7 is fixed, so as to meet different use requirements.

[0030] With reference to Figure 2 , the telescopic rod 6 comprises an inner rod 61 and an outer rod 62, the bottom of the outer rod 62 is located in the guide channel 191 and is connected with the plug 3, the inner part of the outer rod 62 is hollow, and the bottom of the inner rod 61 is movably arranged in the inner part of the outer rod 62 to realize telescopic adjustment, and the top of the inner rod 61 is connected with the floating ball 5.

[0031] Specifically, the bottom of the inner rod 61 is provided with a locking structure for locking or unlocking the outer rod 62, after the length of the telescopic rod 6 is adjusted, the inner rod 61 and the outer rod 62 can be locked and fixed through the locking structure, and the telescopic rod 6 cannot be telescopically adjusted any more, and vice versa, the inner rod 61 and the outer rod 62 can be unlocked to adjust the length of the telescopic rod 6, and the locking structure can adopt various ways and can unlock or lock the inner rod 61 and the outer rod 62, which is not limited herein. For example, in an embodiment, the locking structure is an external thread arranged at the bottom of the inner rod 61, and the inner wall of the outer rod 62 is provided with an internal thread to be threadedly connected with the bottom of the inner rod 61, and the length of the telescopic rod 6 can be adjusted by rotating the inner rod 61.

[0032] In another preferred embodiment, the locking structure is an elastic ball 63 arranged at the bottom of the inner rod 61, the elastic ball 63 is in interference fit with the inner wall of the outer rod 62, so that the inner rod 61 and the outer rod 62 are locked and fixed, and since the elastic ball 63 has elasticity, when the outer rod 62 is fixed and force is applied to the inner rod 61 upward or downward, the elastic ball 63 will move upward or downward, so that the inner rod 61 moves upward or downward relative to the outer rod 62, and the length of the telescopic rod 6 is adjusted, and the material of the elastic ball 63 is rubber or other elastic material. In addition, the top of the outer rod 62 is provided with an opening with a diameter smaller than that of the elastic ball 63, and when the inner rod 61 moves upward excessively, the elastic ball 63 will be clamped in the opening to prevent the inner rod 61 from being separated from the outer rod 62.

[0033] With reference to Figure 3 and Figure 5, the water outlet 12 is provided with a diaphragm seat 8, the bottom opening of the diaphragm seat 8 is communicated with the water outlet 12, the side wall of the diaphragm seat 8 is provided with a first water passing hole 81, the side wall of the valve body 1 on the outer periphery of the diaphragm seat 8 is provided with a second water passing hole 16, the diaphragm 2 is arranged on the diaphragm seat 8 to open and close the bottom opening of the diaphragm seat 8, after the diaphragm 2 opens the bottom opening of the diaphragm seat 8, the water flow will flow out from the first water passing hole 81 to the inside between the valve body 1 and the diaphragm seat 8, and then flow out from the second water passing hole 16 to the inside of the toilet tank 7, so that the first water passing hole 81 and the second water passing hole 16 are communicated to form a water outlet channel.

[0034] With reference to the drawings Figure 3-4 , the valve body 1 comprises a water inlet connector 17 and a pressure relief connector 18, the pressure relief connector 18 is arranged above the water inlet connector 17 and is sealingly connected with the water inlet connector 17, specifically through an annular sealing cover 181 and a sealing ring, the outer side wall of the pressure relief connector 18 and the inner side wall of the water inlet connector 17 are abutted with a sealing ring, the annular sealing cover 181 is sleeved on the bottom outer periphery of the pressure relief connector 18, and the inner side wall of the annular sealing cover 181 is threadedly connected with the outer side wall of the water inlet connector 17. As shown in Figure 6 , when the valve body 1 is arranged at the bottom of the toilet tank 7, the water inlet connector 17 extends out of the outside of the toilet tank 7 and is connected with the water inlet pipe 9. The water inlet channel 11 is arranged in the lower part of the water inlet connector 17, the diaphragm seat 8 is arranged in the upper part of the water inlet connector 17 and is located between the water outlet 12 and the pressure relief connector 18, the bottom of the diaphragm seat 8 is sealingly connected with the water outlet 12, only the bottom opening thereof is communicated with the water outlet 12, and a filter screen can be arranged between the diaphragm seat 8 and the water outlet 12 to filter impurities. The diaphragm seat 8 and the pressure relief connector 18 are also sealingly connected, an annular groove can be formed between the diaphragm seat 8 and the pressure relief connector 18, the edge of the diaphragm 2 forms an annular convex edge 22, the annular convex edge 22 is sealingly embedded in the annular groove to form an annular sealing structure. In addition, the second water passing hole 16 is arranged on the upper side wall of the water inlet connector 17 to correspond to the first water passing hole 81, the pressure relief channel 13 is arranged in the pressure relief connector 18, the bottom of the pressure relief channel 13 is provided with a through hole communicated with the back pressure cavity 15 and a fixing hole for fixing the plunger 41.

[0035] Further, the valve body 1 further comprises a fixing connector 19, the fixing connector 19 is fixed at the top of the pressure relief connector 18, the inside of the fixing connector 19 is provided with a guide channel 191 communicated with the pressure relief channel 13, the bottom of the telescopic rod 6 is arranged in the guide channel 191, the guide channel 191 has a guiding effect and can prevent the telescopic rod 6 from deviating when it is lifted and lowered. The top of the plug 3 is provided with a connecting rod 31 extending into the guide channel 191, the bottom of the telescopic rod 6 is threadedly connected with the connecting rod 31, and the top of the telescopic rod 6 is threadedly connected with the floating ball 5, so as to facilitate disassembly and replacement of the telescopic rod 6.

[0036] Specifically, the bottom inner periphery of the fixed joint 19 is threadedly connected to the top outer periphery of the pressure relief joint 18, the pressure relief hole 14 is opened at the top of the pressure relief channel 13, and a sealing ring is provided between the plug 3 and the pressure relief hole 14. Specifically, an annular groove is provided on the top inner periphery of the pressure relief channel 13, and a sealing ring is provided in the annular groove. The top of the sealing ring abuts against the pressure relief joint 18. When the plug 3 moves upward to contact the bottom of the sealing ring, the pressure relief hole 14 is blocked.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. Any equivalent changes made based on the key design of this case shall fall within the scope of protection of this case.

Claims

1. A universal water tank inlet valve, characterized by: It includes a valve body, a plug, a telescopic rod and a float. The valve body is arranged at the bottom of the toilet water tank. The plug is arranged inside the valve body for upward and downward movement to open and close the water inlet valve. The telescopic rod is arranged vertically. The float is connected to the plug through the telescopic rod. The float drives the telescopic rod and the plug to rise or fall due to the change of water level inside the toilet water tank, thereby closing or opening the water inlet valve.

2. A universal water tank inlet valve according to claim 1, characterized in that: The telescopic rod includes an inner rod and an outer rod. The bottom of the outer rod is connected to a plug. The interior of the outer rod is hollow. The bottom of the inner rod is movably arranged inside the outer rod, and the bottom of the inner rod is provided with a locking structure for locking or unlocking with the outer rod. The top of the inner rod is connected to a float.

3. A universal water tank inlet valve according to claim 2, characterized in that: The locking structure is an elastic sphere arranged at the bottom of the inner rod. The elastic sphere is interference fit with the inner wall of the outer rod. The top of the outer rod is provided with an opening with a diameter smaller than that of the elastic sphere.

4. A universal water tank inlet valve according to claim 2, characterized in that: The locking structure is an external thread provided at the bottom of the inner rod, and the inner wall of the outer rod is provided with an internal thread to be threadedly connected with the bottom of the inner rod.

5. The universal water tank inlet valve according to claim 1, characterized in that: A water inlet channel and a water outlet channel are provided inside the valve body. A water outlet connected to the water outlet channel is provided on the top of the water inlet channel. A diaphragm for opening and closing the water outlet is provided above the water outlet. A pressure relief channel is provided above the diaphragm of the valve body. A pressure relief hole is provided on the top of the pressure relief channel. The plug is movably arranged in the pressure relief channel to open and close the pressure relief hole. A back pressure chamber connected to the pressure relief channel is formed between the plug and the diaphragm.

6. A universal water tank inlet valve according to claim 5, characterized in that: A spring connected to the diaphragm is provided in the back pressure chamber, a thimble is provided in the middle of the spring, a water supply hole is provided in the middle of the diaphragm, the thimble is passed through the water supply hole, and a through hole communicating with the back pressure chamber and a fixing hole for fixing the thimble are provided at the bottom of the pressure relief channel.

7. The universal water tank inlet valve according to claim 5, characterized in that: A diaphragm seat is provided on the water outlet, the bottom opening of the diaphragm seat is connected to the water outlet, the side wall of the diaphragm seat is provided with a first water hole, and the side wall of the valve body outside the diaphragm seat is provided with a second water hole. The first water hole and the second water hole are connected to form a water outlet channel, and the diaphragm is arranged on the diaphragm seat to open and close the bottom opening of the diaphragm seat.

8. The universal water tank inlet valve according to claim 7, characterized in that: The valve body includes a water inlet joint and a pressure relief joint. The pressure relief joint is arranged above the water inlet joint and is sealed with the water inlet joint. The water inlet channel is arranged in the lower part of the water inlet joint. The diaphragm seat is arranged in the upper part of the water inlet joint and is located between the water outlet and the pressure relief joint. The second water hole is arranged on the upper side wall of the water inlet joint, and the pressure relief channel is arranged in the pressure relief joint.

9. A universal water tank inlet valve according to claim 8, characterized in that: The valve body also includes a fixed joint, which is fixed to the top of the pressure relief joint. A guide channel connected to the pressure relief channel is provided inside the fixed joint, and the bottom of the telescopic rod is movably arranged in the guide channel.

10. The universal water tank inlet valve according to claim 9, characterized in that: A connecting rod extending into the guide channel is provided on the top of the plug, the bottom of the telescopic rod is threadedly connected to the connecting rod, and the top of the telescopic rod is threadedly connected to the floating ball.

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