Delayed self-closing type excrement flushing valve

Abstract

The utility model relates to the technical field of flushing valves, and provides a time-delay self-closing type excrement flushing valve which comprises a main body, a connecting piece arranged at the top of the main body, a valve element assembly arranged in the main body and a pushing assembly connected to the main body and capable of opening the valve element assembly. The connecting piece is used for being connected with an external water pipe, a first step is arranged on the inner wall of the main body, a water outlet gasket is arranged on the first step, an inner ring of the water outlet gasket is a water outlet, a groove is formed in the outer wall of the water outlet gasket, an O-shaped ring is installed in the groove and abuts against the inner wall of the main body, and the O-shaped ring is connected with the water outlet gasket. The valve element assembly can block the water outlet, and the pushing assembly can push the valve element assembly to open the water outlet. The flushing valve facilitates direct production of finished products by using section bars, is simple in structure and convenient to produce, improves production efficiency, and solves the technical problems that an existing flushing valve is complex in structure, high in cost and low in production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of flush valves, in particular to a delayed self-closing toilet flush valve. Background Art

[0002] Flush valves are used in more and more scenarios and are widely applied to people's daily life. The water flow mode of flush valves is generally side-in bottom-out or bottom-in side-out, and the water passing structure is complex. The main body of the flush valve usually needs to be cast, which consumes a lot of energy, pollutes the environment, and has a high mold opening cost, increasing the production and processing cost and reducing the production efficiency. The delayed self-closing toilet flush valve proposed by the utility model has a simple structure, which is beneficial to directly producing finished products by using profiles and improving the production efficiency. Content of the Utility Model

[0003] Therefore, in view of the above problems, the utility model proposes a delayed self-closing toilet flush valve, which solves the technical problems of the existing flush valve with complex structure, high processing cost and low production efficiency.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A delayed self-closing toilet flush valve includes a main body, a connecting piece arranged at the top of the main body, a valve core assembly arranged inside the main body, and a pushing assembly connected to the main body and capable of opening the valve core assembly. An upper and lower through water inlet channel is formed inside the main body. The connecting piece is used to connect an external water pipe. A first step is arranged on the inner wall of the main body. A water outlet gasket is arranged on the first step. The inner ring of the water outlet gasket is the water outlet. A groove is arranged on the outer wall of the water outlet gasket. An O-ring is installed in the groove and abuts against the inner wall of the main body. The valve core assembly can block the water outlet, and the pushing assembly can push the valve core assembly to open the water outlet.

[0006] Further:

[0007] External threads are arranged at the top of the main body. A locking piece is threadedly connected to the main body. The top of the locking piece bends inward to form a blocking part. The edge of the connecting piece abuts against the blocking part, and the connecting piece is fixed by the blocking part.

[0008] The valve core assembly includes a valve core and a water passing piece. The water passing piece includes a top plate and a limiting ring arranged at the bottom of the top plate. The edge of the top plate extends out of the limiting ring. The space between the top plate and the limiting ring is sealed. A plurality of water passing ports are arranged at the edge of the top plate. The space between the outer wall of the limiting ring and the main body is the water inlet channel. Water flow can flow into the water inlet channel from the water passing ports. The valve core can move along the limiting ring.

[0009] The inner wall of the main body is provided with a second step, the edge of the top plate abuts against the second step, a washer is provided at the top edge of the top plate, the top of the washer abuts against the bottom of the connecting piece, and the bottom of the washer abuts against the top of the top plate and the main body.

[0010] A valve rod groove is provided on the valve core, a valve rod is movably installed in the valve rod groove, the pushing component can push the valve rod to tilt so that water flows out of the valve rod groove, upper and lower sealing rings are provided on the valve core, the upper sealing ring can abut against the inner wall of the limiting ring, the lower sealing ring can block the water outlet, and a pressurized water inlet groove is provided on the inner wall of the water passing member.

[0011] A first spring is provided between the valve core and the top plate, and the first spring can push the valve core towards the water outlet.

[0012] At least three positioning blocks are provided at the bottom of the valve core, and the positioning blocks can extend to the water outlet.

[0013] A threaded port is provided on the main body, the pushing component includes a fixing piece threadedly connected to the threaded port, a push rod passing through the fixing piece, a second spring arranged around the push rod, and a pressing piece located at one end of the fixing piece. The two ends of the second spring respectively abut against the fixing piece and the push rod, one end of the push rod extends into the main body, and the push rod can push the valve core.

[0014] The pressing piece is a cap connected to the fixing piece or a pedal rotatably connected to the main body.

[0015] The water inlet channel is a straight structure or an arc structure.

[0016] By adopting the foregoing technical solutions, the beneficial effects of the present utility model are:

[0017] The water inlet channel of the present utility model runs through from top to bottom, which is conducive to directly producing finished products using profiles, facilitating production. Compared with the current production process of valve bodies that must be completed by casting, the present utility model can reduce production links, reduce the production cycle, reduce environmental pollution caused by casting, reduce processing costs, improve production efficiency, and is convenient and fast for installation and disassembly. When flushing water, the water inside the valve body does not need to turn 90 degrees, reducing the resistance of water flow; further, through the blocking part, there is no need to set external threads on the connecting piece, the structure is streamlined, the blocking part can prevent the connecting piece from shaking, and the sealing performance is good, avoiding water leakage; further, the structure of the water passing part is convenient for production, without casting, reducing production costs; further, the washer can play a good role in preventing water leakage; further, through the water passing part, the valve core, the upper sealing ring, the lower sealing ring and the valve rod, a better delayed self-closing effect can be achieved, and the flushing is cleaner; further, the first spring can push the valve core towards the water outlet direction, playing an auxiliary role when closing water, and can also ensure that the lower sealing ring can firmly seal the water outlet, preventing water leakage; further, through the positioning block, the valve core can move up and down as vertically as possible, more stable during movement, without large deviation and rotation, ensuring that the lower sealing ring can accurately seal the water outlet; further, the washer can prevent the connecting piece from directly abutting against the water passing part, causing the connecting piece to block the water passing port, and by setting the washer, water leakage from the connection between the connecting piece and the main body can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the present utility model;

[0019] Figure 2 is a schematic internal structural view of the present utility model;

[0020] Figure 3 is Figure 2 a partial enlarged view of

[0021] Figure 4 is a schematic structural view of the main body with a water outlet gasket installed;

[0022] Figure 5 is Figure 4 a partial enlarged view of

[0023] Figure 6 is a schematic structural view of the main body;

[0024] Figure 7 is a schematic structural view of the valve core;

[0025] Figure 8 is a schematic structural view of the water passing part;

[0026] Figure 9 is a schematic structural view of the connecting piece;

[0027] Figure 10 It is a schematic structural diagram of the locking part;

[0028] Figure 11 It is a schematic structural diagram with the cap replaced by a pedal

[0029] In the figure: 1. Main body; 2. Connecting part; 3. Spool assembly; 4. Pushing assembly; 5. Water inlet channel; 11. First step; 12. Second step; 6. Outlet gasket; 61. O-ring; 62. Outlet; 7. Locking part; 71. Blocking part; 31. Spool; 32. Water passing part; 321. Top plate; 322. Limiting ring; 323. Water passing port; 324. Pressurized water inlet groove; 9. Gasket; 33. Upper sealing ring; 34. Lower sealing ring; 35. First spring; 36. Positioning block; 37. Valve stem; 13. Threaded port; 41. Fixing part; 42. Push rod; 43. Second spring; 44. Pressing part. Specific embodiments

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] Refer to Figures 1 to 10 , the present invention provides a time-delay self-closing toilet flushing valve, which includes a main body 1, a connecting part 2 provided at the top of the main body 1, a spool assembly 3 provided inside the main body 1, and a pushing assembly 4 connected to the main body 1 and capable of opening the spool assembly 3. A vertically penetrating water inlet channel 5 is formed inside the main body 1. The connecting part 2 is used to connect an external water pipe. A first step 11 is provided on the inner wall of the main body 1. An outlet gasket 6 is provided on the first step 11. The inner ring of the outlet gasket 6 is the outlet 62. A groove is provided on the outer wall of the outlet gasket 6. An O-ring 61 is installed in the groove. The O-ring 61 abuts against the inner wall of the main body 1. The spool assembly 3 can block the outlet 62. The pushing assembly 4 can push the spool assembly 3 to open the outlet 62. An external thread is provided at the top of the main body 1. A locking part 7 is threadedly connected to the main body 1. The top of the locking part 7 bends inward to form a blocking part 71. The edge of the connecting part 2 abuts against the blocking part 71. The connecting part 2 is fixed by the blocking part 71.

[0032] The valve core assembly 3 includes a valve core 31 and a water passage member 32. The water passage member 32 includes a top plate 321 and a limiting ring 322 provided at the bottom of the top plate 321. The edge of the top plate 321 extends out of the limiting ring 322. The space between the top plate 321 and the limiting ring 322 is sealed. A plurality of water passage openings 323 are provided at the edge of the top plate 321. The gap between the outer wall of the limiting ring 322 and the main body 1 is the water inlet passage 5. Water flow can flow into the water inlet passage 5 from the water passage openings 323. The valve core 31 can move along the limiting ring 322. A second step 12 is provided on the inner wall of the main body 1. The edge of the top plate 321 abuts against the second step 12. A washer 9 is provided at the top edge of the top plate 321. The top of the washer 9 abuts against the bottom of the connecting member 2, and the bottom of the washer 9 abuts against the top of the top plate 321 and the main body 1. A valve rod groove 37 is provided on the valve core 31. A valve rod 37 is movably installed in the valve rod groove 37. The pushing component 4 can push the valve rod 37 to be inclined so that the water flow flows out from the valve rod groove 37. An upper sealing ring 33 and a lower sealing ring 34 are provided on the valve core 31. The upper sealing ring 33 can abut against the inner wall of the limiting ring 322, and the lower sealing ring 34 can block the water outlet 62. A pressurized water inlet groove 324 is provided on the inner wall of the water passage member 32. A first spring 35 is provided between the valve core 31 and the top plate 321. The first spring 35 can push the valve core 31 towards the water outlet 62. A plurality of positioning blocks 36 are provided at the bottom of the valve core 31. The positioning blocks 36 can extend to the water outlet 62.

[0033] A threaded port 13 is provided on the main body 1. The pushing component 4 includes a fixing member 41 threadedly connected to the threaded port 13, a push rod 42 passing through the fixing member 41, a second spring 43 disposed around the push rod 42, and a pressing member 44 located at one end of the fixing member 41. The two ends of the second spring 43 respectively abut against the fixing member 41 and the push rod 42. One end of the push rod 42 extends into the main body 1. The push rod 42 can push the valve core 31. The pressing member 44 is a cap connected to the fixing member 41.

[0034] The above-mentioned water outlet gasket 6 can also be connected to the main body 1 by welding to form an integral body. In this embodiment, the water outlet gasket 6 is directly placed on the step. The O-ring 61 can not only play a sealing role in preventing water leakage, but also play an anti-slip role in preventing the water outlet gasket 6 from sliding, which is specifically set according to the situation.

[0035] The top plate 321 and the limiting ring 322 of the above-mentioned water passage member 32 are fixed together by welding, which is specifically set according to the situation.

[0036] The above-mentioned water passage holes can be one, two, three, four or even more, and can be in the shape of a hole, a fan or other structures, which is specifically set according to the situation.

[0037] The above-mentioned first spring 35 is a conical spring. After being compressed, the conical spring has a small thickness. It can also be a spring with other structures, which is specifically set according to the situation.

[0038] The above-mentioned upper sealing ring 33 and lower sealing ring 34 can be made of rubber, silica gel or other elastic materials, which are specifically set according to the situation.

[0039] The cross-section of the above-mentioned upper sealing ring 33 is a triangular structure or a trapezoidal structure with a longer lower base. With this structure, the water in the inner cavity of the water passing member 32 is easy to flow out, but the external water is not easy to flow into the inner cavity of the water passing member 32.

[0040] The above-mentioned washer 9 can be made of soft materials such as rubber or silica gel, or can also be made of hard materials, which are specifically set according to the situation.

[0041] The above-mentioned water inlet channel 5 can be a straight line or an arc structure. The present utility model adopts a straight line structure. With this structure, there are fewer corners, reducing the accumulation of scale and silt inside, which is specifically set according to the situation.

[0042] Anti-slip protrusions or anti-slip patterns can be provided on the top of the above-mentioned pedal, which are specifically set according to the situation.

[0043] Reference Figure 11 , the above-mentioned pressing member 44 can also be a pedal rotatably connected to the main body 1, which is specifically set according to the situation.

[0044] The working mode of the present utility model is as follows:

[0045] When flushing, the pressing member 44 is pushed to make the valve rod 37 tilt. Most of the water in the inner cavity of the water passing member 32 flows out from the groove of the valve rod 37. The pressurized tap water outside will push the valve core up and press it into the water passing member 32, so that the water flows smoothly out of the water inlet. After the external force is withdrawn, the valve rod 37 resets to block the groove of the valve rod 37. The tap water slowly enters the inner cavity of the water passing member 32 from the pressurized water inlet groove 324. The inner cavity of the water passing member 32 accumulates pressurized tap water again. At this time, after the internal and external water pressures reach balance, the first spring 35 pushes the valve core towards the water outlet 62 until the lower sealing ring 34 blocks the water outlet 62, thus achieving the effect of delayed self-closing.

[0046] Although the present utility model is specifically shown and described in combination with the preferred implementation scheme, those skilled in the art should understand that various changes can be made to the present utility model in terms of form and details without departing from the spirit and scope of the present utility model defined by the appended claims, and all of them are within the protection scope of the present utility model.

Claims

1. A delayed self-closing stool flush valve, characterized by: The water outlet valve comprises a main body, a connecting piece provided on the top of the main body, a valve core assembly provided in the main body, and a pushing assembly connected to the main body and capable of opening the valve core assembly. A water inlet channel running through the main body is formed in the main body. The connecting piece is used to connect an external water pipe. A first step is provided on the inner wall of the main body. A water outlet gasket is provided on the first step. The inner ring of the water outlet gasket is the water outlet. A groove is provided on the outer wall of the water outlet gasket. An O-ring is installed in the groove. The O-ring abuts against the inner wall of the main body. The valve core assembly can block the water outlet. The pushing assembly can push the valve core assembly to open the water outlet.

2. The delayed self-closing stool flush valve according to claim 1, characterized in that: The top of the main body is provided with an external thread, and a locking piece is threadedly connected to the main body. The top of the locking piece is bent inward to form a blocking portion, and the edge of the connecting piece is against the blocking portion, and the connecting piece is fixed by the blocking portion.

3. The delayed self-closing stool flush valve according to claim 1, characterized in that: The valve core assembly includes a valve core and a water-passing part, and the water-passing part includes a top plate and a limiting ring arranged at the bottom of the top plate. The limiting ring extends from the edge of the top plate, and the top plate and the limiting ring are sealed. A plurality of water passages are provided at the edge of the top plate, and the gap between the outer wall of the limiting ring and the main body is a water inlet channel. Water can flow into the water inlet channel from the water passage, and the valve core can move along the limiting ring.

4. The delayed self-closing stool flush valve according to claim 3, characterized in that: The inner wall of the main body is provided with a second step, the edge of the top plate abuts against the second step, the top edge of the top plate is provided with a gasket, the top of the gasket abuts against the bottom of the connector, and the bottom of the gasket abuts against the top plate and the top of the main body.

5. The delayed self-closing stool flush valve according to claim 3, characterized in that: The valve core is provided with a valve stem groove, and a valve stem is movably installed in the valve stem groove. The pushing assembly can push the valve stem to tilt so that water flows out of the valve stem groove. The valve core is provided with an upper sealing ring and a lower sealing ring. The upper sealing ring can abut against the inner wall of the limit ring, and the lower sealing ring can block the water outlet. The inner wall of the water-passing part is provided with a pressurized water inlet groove.

6. The delayed self-closing stool flush valve according to claim 5, characterized in that: A first spring is provided between the valve core and the top plate, and the first spring can push the valve core to move toward the water outlet.

7. The delayed self-closing stool flush valve according to claim 3, characterized in that: At least three positioning blocks are provided at the bottom of the valve core, and the positioning blocks can extend to the water outlet.

8. The delayed self-closing stool flush valve according to claim 1, characterized in that: The main body is provided with a threaded opening, and the pushing assembly includes a fixing part threadedly connected to the threaded opening, a push rod passing through the fixing part, a second spring arranged around the push rod, and a pressing part located at one end of the fixing part, the two ends of the second spring respectively abut against the fixing part and the push rod, one end of the push rod extends into the main body, and the push rod can push the valve core.

9. The delayed self-closing stool flush valve according to claim 8, characterized in that: The pressing member is a cap connected to the fixing member or a pedal rotatably connected to the main body.

10. The delayed self-closing stool flush valve according to claim 1, characterized in that: The water inlet channel is a straight line structure or an arc structure.

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