Anti-siphoning toilet refill valve

Abstract

The utility model discloses a kind of toilet water replenishing valves of anti-siphon, it is related to water replenishing valve technical field, including water outlet seat, water inlet seat, gland, sealing mechanism and open-close mechanism, water inlet seat is sleeved in the outside of water outlet seat, gland is fixedly connected in the top of water inlet seat, the top of gland is equipped with pressure relief hole, sealing mechanism is set on gland, open-close mechanism is set on one side of water inlet seat.The utility model utilizes the setting mode that gland, sealing mechanism and open-close mechanism cooperate, sealing mechanism can make that adjusting rod is adjusted to the travel of sealing pad inside gland by driving rod, to accurately control water level and water inlet speed, can ensure that water tank always maintains proper water level in water replenishing process, prevent the formation of negative pressure, further reduce siphon risk, user can adjust water replenishing speed at any time according to actual demand, avoid that water replenishing speed is higher and generates larger noise, improve the overall performance and environmental protection benefit of toilet.

Description

Technical Field

[0001] This utility model relates to the field of water supply valve technology, and in particular to an anti-siphon toilet water supply valve. Background Technology

[0002] The toilet refill valve is an important component of the toilet, which replenishes water to the tank promptly after flushing. It precisely controls the water level to ensure the appropriate water volume in the tank, guaranteeing normal toilet operation. It features a simple structure, efficient water replenishment, and good stability.

[0003] Existing toilet refill valves typically open and close the water outlet by sliding a sealing gasket inside the pressure cover, thus enabling water inlet and outlet operations. The key feature is the pressure relief hole on the pressure cover, which allows the sealing gasket to be raised or lowered. However, the fixed height of the pressure cover results in a fixed lifting distance for the sealing gasket, making it impossible to adjust the water inlet speed as needed, which is quite inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide an anti-siphon toilet fill valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-siphon toilet fill valve, comprising:

[0006] Water outlet seat;

[0007] A water inlet seat, which is fitted over the water outlet seat;

[0008] A pressure cap is fixedly connected to the top of the water inlet seat, and a pressure relief hole is provided at the top of the pressure cap;

[0009] A sealing mechanism, which is disposed on the pressure cap, is used to adjust the water inlet speed;

[0010] An opening and closing mechanism is provided on one side of the water inlet seat and is used to open and close the pressure relief hole.

[0011] Preferably, the sealing mechanism includes:

[0012] A sleeve, which is fixedly connected to the top of the gland;

[0013] An adjusting rod is slidably inserted into the inner cavity of the sleeve;

[0014] A drive rod is rotatably disposed inside the sleeve, and the drive rod and the adjusting rod form a screw drive;

[0015] A knob is fixedly connected to the top of the drive rod, and the outer wall of the knob is provided with anti-slip texture.

[0016] Preferably, the sealing mechanism further includes:

[0017] A sealing gasket is disposed inside the pressure cap and is slidably inserted into the inner cavity of the water outlet seat;

[0018] The extrusion rod has an extrusion groove at its bottom end. The extrusion rod is fixedly connected to the top of the sealing gasket, and the extrusion rod is slidably inserted into the inner cavity of the extrusion groove.

[0019] A compression spring, wherein the compression spring is disposed inside the compression groove.

[0020] Preferably, one end of the compression spring is fixedly connected to the extrusion rod, and the other end of the compression spring is fixedly connected to the top end of the inner wall of the extrusion groove.

[0021] Preferably, the opening and closing mechanism includes:

[0022] An adjusting frame, which is sleeved on the outside of the water inlet seat;

[0023] The water inlet seat has equidistant fixing holes on its outer wall, and the fixing pin passes through the adjusting bracket and is threaded into the inner cavity of the fixing hole.

[0024] Preferably, the opening and closing mechanism further includes:

[0025] Hollow seat, which is slidably inserted into the inner cavity of the adjusting frame;

[0026] A lifting rod, which is fixedly connected to the top of the hollow base;

[0027] A swing rod is rotatably mounted on the top of the pressure cap, and a through groove is provided at the top of the swing rod, with the sleeve located inside the through groove;

[0028] A sliding block is fixedly connected to both sides of the lifting rod. Sliding grooves are provided on both sides of the inner wall of the swing rod, and the sliding block is slidably inserted into the inner cavity of the sliding groove.

[0029] A sealing pad is fixedly connected to the bottom end of the swing rod and is used to open and close the pressure relief hole.

[0030] The technical effects and advantages of this utility model are as follows:

[0031] This utility model utilizes a combination of a pressure cap, a sealing mechanism, and an opening and closing mechanism. The sealing mechanism, via a drive rod, allows the adjusting rod to adjust the displacement of the sealing gasket within the pressure cap. The opening and closing mechanism controls the start and stop of water inflow, thereby precisely controlling the water level and inflow speed. This effectively prevents siphoning caused by excessively low water levels. Furthermore, proper adjustment ensures that the water tank maintains an appropriate water level during replenishment, preventing negative pressure formation and further reducing the risk of siphoning. In addition, users can adjust the water replenishment speed according to their actual needs, avoiding excessive noise from high water replenishment rates, thus improving the overall performance and environmental benefits of the toilet. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0033] Figure 2 This is a schematic diagram of the internal structure of the sealing mechanism of this utility model from the front.

[0034] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0035] Figure 4 This is a schematic diagram of the hollow seat structure of this utility model.

[0036] In the diagram: 1. Water outlet seat; 2. Water inlet seat; 3. Pressure cap; 4. Sealing mechanism; 41. Sleeve; 42. Adjusting rod; 43. Drive rod; 44. Knob; 45. Sealing gasket; 46. Extrusion rod; 47. Compression spring; 5. Opening and closing mechanism; 51. Adjusting frame; 52. Fixing pin; 53. Hollow seat; 54. Lifting rod; 55. Swing rod; 56. Sliding block; 57. Sealing gasket. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] This utility model provides, for example Figure 1-4The toilet fill valve shown includes an outlet seat 1, an inlet seat 2, a pressure cap 3, a sealing mechanism 4, and an opening and closing mechanism 5. The inlet seat 2 is fitted onto the outside of the outlet seat 1, and the pressure cap 3 is fixedly connected to the top of the inlet seat 2. A pressure relief hole is provided at the top of the pressure cap 3. The sealing mechanism 4 is set on the pressure cap 3 and is used to adjust the water inlet speed. The opening and closing mechanism 5 is set on one side of the inlet seat 2 and is used to open and close the pressure relief hole. The sealing mechanism 4 and the opening and closing mechanism 5 can control the water level and the water inlet speed, effectively avoiding siphoning caused by excessively low water levels. At the same time, reasonable adjustment can ensure that the water tank always maintains an appropriate water level during the filling process, preventing the formation of negative pressure and further reducing the risk of siphoning. In addition, users can adjust the water filling speed at any time according to actual needs to avoid excessive noise caused by high water filling speed, thus improving the overall performance and environmental benefits of the toilet.

[0039] The sealing mechanism 4 includes a sleeve 41, an adjusting rod 42, a driving rod 43, and a knob 44. The sleeve 41 is fixedly connected to the top of the pressure cap 3. The adjusting rod 42 is slidably inserted into the inner cavity of the sleeve 41. The driving rod 43 is rotatably disposed inside the sleeve 41. The driving rod 43 and the adjusting rod 42 form a screw drive. The knob 44 is fixedly connected to the top of the driving rod 43. The outer wall of the knob 44 is provided with anti-slip texture. The anti-slip texture increases the friction between the operator's hand and the knob 44, making it easier to rotate the knob 44. The knob 44 can drive the driving rod 43 to rotate, thereby allowing the adjusting rod 42 to move back and forth in the vertical direction, thus limiting the displacement distance of the sealing gasket 45.

[0040] The sealing mechanism 4 also includes a sealing gasket 45, a squeezing rod 46, and a compression spring 47. The sealing gasket 45 is located inside the pressure cap 3 and is slidably inserted into the inner cavity of the water outlet seat 1. The bottom end of the adjusting rod 42 has a squeezing groove. The squeezing rod 46 is fixedly connected to the top end of the sealing gasket 45 and is slidably inserted into the inner cavity of the squeezing groove. The compression spring 47 is located inside the squeezing groove. One end of the compression spring 47 is fixedly connected to the squeezing rod 46, and the other end of the compression spring 47 is fixedly connected to the top end of the inner wall of the squeezing groove. The compression spring 47 always provides a stable elastic force to the sealing gasket 45, so that the sealing gasket 45 can stably seal the water outlet seat 1. When the pressure relief hole is opened, the water pressure exceeds the elastic force, which can push the sealing gasket 45 open, so that water can be delivered to the inside of the toilet through the water inlet seat 2. After the pressure relief hole is closed, the sealing gasket 45 resets and reseals the water outlet seat 1.

[0041] The opening and closing mechanism 5 includes an adjusting frame 51, a fixing pin 52, a hollow seat 53, a lifting rod 54, a swing rod 55, a sliding block 56, and a sealing pad 57. The adjusting frame 51 is sleeved on the outside of the water inlet seat 2. The outer wall of the water inlet seat 2 is provided with fixing holes at equal intervals. The fixing pin 52 passes through the adjusting frame 51 and is threaded into the inner cavity of the fixing hole. By connecting the fixing pin 52 with fixing holes of different heights, the height of the adjusting frame 51 can be adjusted, thereby controlling the height of the water level in the toilet tank. The hollow seat 53 is slidably inserted into the inner cavity of the adjusting frame 51. The lifting rod 54 is fixedly connected to the top of the hollow seat 53. The swing rod 55 is rotatably set at the top of the pressure cover 3. A through groove is opened at the top of the swing rod 55. The sleeve 41 is located inside the through groove. The sliding block 56 is fixedly connected to both sides of the lifting rod 54. Sliding grooves are opened on both sides of the inner wall of the swing rod 55. The sliding block 56 is slidably inserted into the inner cavity of the sliding groove. The sealing pad 57 is fixedly connected to the bottom of the swing rod 55 and is used to open and close the pressure relief hole. Utilizing the height of the water level inside the toilet tank, the swing rod 55 can be rotated by the floating and falling of the hollow seat 53 through the sliding block 56. This allows the sealing pad 57 to close the pressure relief hole when the water level reaches a certain height, thus turning off automatic water replenishment. After the water is drained, it can be reopened to continue replenishing water.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A siphon-preventing toilet refill valve, characterized in that ,include: Water outlet seat (1); Water inlet seat (2), which is sleeved on the outside of water outlet seat (1); Pressure cap (3), the pressure cap (3) is fixedly connected to the top of the water inlet seat (2), and the top of the pressure cap (3) is provided with a pressure relief hole; A sealing mechanism (4) is provided on the pressure cap (3) and is used to adjust the water inlet speed; The opening and closing mechanism (5) is located on one side of the water inlet seat (2) and is used to open and close the pressure relief hole.

2. A siphoning-preventing toilet refill valve according to claim 1, wherein The sealing mechanism (4) includes: Sleeve (41), which is fixedly connected to the top of the pressure cap (3); Adjusting rod (42), which is slidably inserted into the inner cavity of sleeve (41); A drive rod (43) is rotatably disposed inside a sleeve (41), and the drive rod (43) and the adjusting rod (42) form a screw drive; A knob (44) is fixedly connected to the top of the drive rod (43), and the outer wall of the knob (44) is provided with anti-slip texture.

3. A siphoning-preventing toilet refill valve according to claim 2, wherein The sealing mechanism (4) further includes: A sealing gasket (45) is disposed inside the pressure cap (3), and the sealing gasket (45) is slidably inserted into the inner cavity of the water outlet seat (1); The extrusion rod (46) has an extrusion groove at the bottom end of the adjusting rod (42). The extrusion rod (46) is fixedly connected to the top end of the sealing gasket (45). The extrusion rod (46) is slidably inserted into the inner cavity of the extrusion groove. Compression spring (47) is disposed inside the compression groove.

4. A siphoning-preventing toilet refill valve according to claim 3, wherein One end of the compression spring (47) is fixedly connected to the extrusion rod (46), and the other end of the compression spring (47) is fixedly connected to the top of the inner wall of the extrusion groove.

5. A siphoning-preventing toilet refill valve according to claim 2, wherein The opening and closing mechanism (5) includes: Adjustment frame (51), the adjustment frame (51) is sleeved on the outside of the water inlet seat (2); The fixing pin (52) has fixing holes equidistantly opened on the outer wall of the water inlet seat (2), and the fixing pin (52) passes through the adjusting bracket (51) and is threadedly connected to the inner cavity of the fixing hole.

6. A siphoning-preventing toilet refill valve according to claim 5, wherein The opening and closing mechanism (5) also includes: Hollow seat (53), the hollow seat (53) is slidably inserted into the inner cavity of the adjusting frame (51); A lifting rod (54) is fixedly connected to the top of the hollow seat (53); A swing rod (55) is rotatably mounted on the top of the pressure cap (3). A through groove is provided at the top of the swing rod (55), and the sleeve (41) is located inside the through groove. The sliding block (56) is fixedly connected to both sides of the lifting rod (54). The two sides of the inner wall of the swing rod (55) are provided with sliding grooves. The sliding block (56) is slidably inserted into the inner cavity of the sliding groove. A sealing pad (57) is fixedly connected to the bottom end of the swing rod (55) and is used to open and close the pressure relief hole.

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