A water inlet valve for realizing water path switching

Abstract

The present invention provides a water inlet valve for realizing waterway switching, comprising a water stop body, a brush ring control mechanism, a water tank control mechanism and an outer float; the water stop body is provided with a total water inlet flow channel, a brush ring water inlet hole and a water tank water inlet hole; the outer float is provided with a water tank cavity and a brush ring cavity; the brush ring control mechanism comprises a brush ring water stop assembly, a brush ring float assembly and a brush ring lifting rod, the brush ring water stop assembly is blocked in the brush ring water inlet hole, and the brush ring float assembly is arranged in the brush ring cavity; one end of the brush ring lifting rod is connected to the brush ring float assembly, and the other end is connected to the brush ring water stop assembly; the water tank control mechanism comprises a water tank water stop assembly, a water tank float assembly and a water tank lifting rod, the water tank water stop assembly is blocked in the water tank water inlet hole, and the water tank float assembly is arranged in the water tank cavity; one end of the water tank lifting rod is connected to the water tank float assembly, and the other end is connected to the water tank water stop assembly. Advantages of the present invention: the purpose of water supply control for two waterways is achieved, and the purely mechanical control method has better stability.

Description

[Technical field]

[0001] The present invention relates to the technical field of water inlet valves, and in particular to a water inlet valve for realizing waterway switching. [Background technology]

[0002] A toilet is also called a toilet bowl. It is a covered bucket for defecation and urination, and can be seen everywhere in daily life. The flushing structure is an indispensable structure in a toilet bowl. The flushing structure of an existing toilet bowl generally includes a brush ring water channel leading to the upper part of the toilet bowl and a jet water channel leading to the bottom of the toilet bowl. The brush ring water channel is used to supply water for washing the inner wall of the toilet bowl, and the jet water channel is used to spray water to the jet hole at the bottom of the toilet bowl.

[0003] In order to meet the water demand of the brush ring waterway and the jet waterway, the main waterway used to supply water to the toilet usually needs to be divided into two ways for water supply, one for the brush ring waterway and the other for the jet waterway. In order to achieve the control of the water supply waterway, a water stop structure must be used. When controlling the water supply waterway, the prior art mostly uses a battery valve to control the opening and closing of the pressure relief valve in the water stop structure. However, the solenoid valve requires a power supply and will not work once a power outage occurs, which makes it extremely inconvenient to use in practice.

[0004] After searching, it is found that there is also a pneumatic control method used in the prior art to control the opening and closing of the pressure relief valve in the water-stop structure. For example, the Chinese invention patent with the application date of 2019.05.15 and the application number of 201910403131.7 discloses a pneumatically controlled toilet with a water tank hidden under the toilet seat. The toilet uses a double set of water-stop structures to achieve control of two water supply waterways. However, the brush ring waterway in this technical solution is controlled by an airbag, and the compression force of the airbag is affected by the water pressure. In addition, the parts at the sealing position of the product require high precision, and the channel of the pressure relief hole is too small. The product is prone to water stopping during actual use.

[0005] In view of the fact that the prior art has not yet provided a stable and reliable double-set water-stopping structure that can be used to control the two water supply channels of a toilet, the inventor of this case conducted an in-depth study on the issue and thus came up with this case. [Summary of the invention]

[0006] The technical problem to be solved by the present invention is to provide a water inlet valve for realizing water channel switching, so as to solve the problem that the existing water-stopping structure is not stable and reliable enough.

[0007] The present invention is implemented as follows: a water inlet valve for realizing waterway switching, comprising a water stop body, a brush ring control mechanism, a water tank control mechanism and an outer buoy;

[0008] The water stop body is provided with a main water inlet channel, a brush ring water inlet hole and a water tank water inlet hole, the brush ring water inlet hole is connected to the main water inlet channel, and the water tank water inlet hole is connected to the main water inlet channel; the outer buoy is provided with a water tank inner cavity and a brush ring inner cavity;

[0009] The brush ring control mechanism includes a brush ring water stop assembly, a brush ring float assembly and a brush ring lifting rod. The brush ring water stop assembly is sealed in the brush ring water inlet hole, and the brush ring float assembly is arranged in the inner cavity of the brush ring; one end of the brush ring lifting rod is connected to the brush ring float assembly, and the other end of the brush ring lifting rod is rotatably connected to the pressure relief end of the brush ring water stop assembly, and the brush ring lifting rod is linked to the brush ring float assembly to control the opening and closing of the brush ring water stop assembly;

[0010] The water tank control mechanism includes a water tank water stop assembly, a water tank float assembly and a water tank lifting rod. The water tank water stop assembly is sealed in the water inlet hole of the water tank, and the water tank float assembly is arranged in the inner cavity of the water tank; one end of the water tank lifting rod is connected to the water tank float assembly, and the other end of the water tank lifting rod is rotatably connected to the pressure relief end of the water tank water stop assembly. The opening and closing of the water tank water stop assembly is controlled by the water tank float assembly and the water tank lifting rod.

[0011] Furthermore, the inner cavity of the brush ring is higher than the inner cavity of the water tank.

[0012] Furthermore, a drainage hole for delaying is provided at the bottom of the inner cavity of the water tank.

[0013] Furthermore, a time-delay one-way valve is provided on the drainage hole, and a time-delay small hole for drainage is provided on the time-delay one-way valve.

[0014] Furthermore, the outer wall of the upper end of the water stop body is provided with a first extension section, and the outer end surface of the first extension section is provided with a first water stop member installation hole connected to the water inlet hole of the brush ring.

[0015] Furthermore, a second extension section is provided on the outer wall of the upper end of the water stop body, and a second water stop installation hole connected to the water inlet hole of the water tank is provided on the outer end surface of the second extension section.

[0016] Furthermore, the first extension section and the second extension section are arranged in parallel on both sides of the upper end of the water-stop body.

[0017] Furthermore, the inner cavity of the brush ring is located directly below the second extension section.

[0018] Furthermore, the inner cavity of the water tank is located directly below the first extension section.

[0019] Furthermore, the brush ring lifting rod is located on one side of the first extension section and the second extension section in the horizontal direction.

[0020] Furthermore, the water tank lifting rod is located on the other side of the first extension section and the second extension section in the horizontal direction.

[0021] Furthermore, the lower part of the water-stop body is a main water inlet pipe, and the main water inlet flow channel is located in the main water inlet pipe.

[0022] Furthermore, a pipe insertion hole is provided in the middle of the outer buoy, and the main water inlet pipe is inserted into the pipe insertion hole.

[0023] Furthermore, the inner wall of the pipe jack is provided with a vertical positioning groove, and the outer wall of the main water inlet pipe is provided with a vertical positioning block matching the vertical positioning groove.

[0024] Furthermore, a water tank water channel outlet is provided on the top of the water-stop body, and the water tank water channel outlet is communicated with the water inlet hole of the water tank.

[0025] Furthermore, a first water replenishment port for replenishing water to the water tank is provided at the water outlet of the water tank.

[0026] Furthermore, a second water replenishment port for replenishing water to the inner cavity of the brush ring is provided at the water outlet of the water tank.

[0027] Furthermore, the second water replenishment port is provided with a brush ring water replenishment pipe extending to the top of the brush ring inner cavity.

[0028] Furthermore, an anti-siphon component is provided at the upper end of the water tank water outlet.

[0029] Furthermore, a brush ring water channel interface is provided on the outer wall of the upper end of the water stop body, and the brush ring water channel interface is connected to the brush ring water inlet hole.

[0030] Furthermore, the brush ring buoy assembly includes a brush ring buoy and a brush ring screw, the brush ring buoy is placed in the brush ring inner cavity, and the brush ring screw is fixed to the outer wall of the brush ring buoy.

[0031] Furthermore, the outer wall of the outer buoy is provided with a first avoidance groove for the brush ring screw to pass through.

[0032] Furthermore, the water tank buoy assembly includes a water tank buoy and a water tank screw. The water tank buoy is placed in the inner cavity of the water tank, and the water tank screw is fixed to the outer wall of the water tank buoy.

[0033] Furthermore, the outer wall of the outer buoy is provided with a second avoidance groove for the water tank screw to pass through.

[0034] Furthermore, the brush ring water-stop assembly includes a water-stop tube, a first water-stop cover, a first water-stop rubber pad, a first sealing pad and a sealing ring; the water-stop tube is installed at the water inlet hole of the brush ring, the water-stop tube is provided with a first water-stop port, and the sealing ring is sleeved on the insertion end of the water-stop tube; the first water-stop cover is buckled on the end of the first extension section, the first water-stop rubber pad is provided between the water-stop tube and the first water-stop cover for sealing on the first water-stop port; the first water-stop cover is provided with a first pressure relief chamber located on the side of the first water-stop rubber pad facing away from the first water-stop port, the first water-stop rubber pad is provided with a first pressurizing hole for allowing water in the total water inlet channel to enter the first pressure relief chamber, the first water-stop cover is provided with a first pressure relief hole for connecting the first pressure relief chamber with the external atmospheric pressure; the first sealing pad is sealed on the first pressure relief hole.

[0035] Furthermore, one end of the brush ring lifting rod is sleeved on the upper end of the brush ring screw, and the other end of the brush ring lifting rod is rotatably connected to the first water stop cover; the rotating end of the brush ring lifting rod is provided with a first extension portion downward, and the inner surface of the first extension portion is provided with a first placement groove for placing the first sealing gasket.

[0036] Furthermore, the water tank water-stopping assembly includes a water-stopping core, a second water-stopping cover, a second water-stopping rubber pad and a second sealing pad; the water-stopping core is installed at the water inlet hole of the water tank, and the water-stopping core is provided with a second water-stopping port; the second water-stopping cover is buckled on the end of the second extension section, and the second water-stopping rubber pad is arranged between the water-stopping core and the second water-stopping cover for sealing the second water-stopping port; the second water-stopping cover is provided with a second pressure relief chamber located on the side of the second water-stopping rubber pad facing away from the second water-stopping port, the second water-stopping rubber pad is provided with a second pressurizing hole for allowing water in the total water inlet channel to enter the second pressure relief chamber, the second water-stopping end cover is provided with a second pressure relief hole for connecting the second pressure relief chamber with the external atmospheric pressure, and the second sealing pad is sealed on the second pressure relief hole.

[0037] Furthermore, one end of the water tank lifting rod is sleeved on the upper end of the water tank screw, and the other end of the water tank lifting rod is rotatably connected to the second water stop cover; the rotating end of the water tank lifting rod is downwardly provided with a second extension portion, and the inner surface of the second extension portion is provided with a second placement groove for placing the second sealing gasket.

[0038] The advantages of the present invention are:

[0039] 1. Two sets of water-stopping mechanisms are used, one of which is used to independently control the brush ring waterway, and the other is used to independently control the water tank waterway; at the same time, both waterways are controlled by float assemblies. Compared with the existing solenoid valve control method or airbag control method, it not only achieves the purpose of water supply control for both waterways, but also has better stability in the purely mechanical control method, and will not cause power failure and water stopping;

[0040] 2. An external mechanism is used in the brush ring water circuit to press down the brush ring float assembly to realize the discharge of the inner cavity of the brush ring, and a delayed one-way valve is used in the water tank water circuit to realize delayed discharge. Therefore, the technical solution of the present invention can well realize the mutual switching of the brush ring and the water tank water circuits, so as to achieve the purpose of brushing the ring first and then the water tank, which is extremely convenient to use.

Brief Description of the Drawings

[0041] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0042] Figure 1 It is a front stereoscopic view of a water inlet valve for realizing waterway switching according to the present invention.

[0043] Figure 2 It is a back stereoscopic view of a water inlet valve for realizing waterway switching according to the present invention.

[0044] Figure 3 It is one of the structural schematic diagrams of the water stop body in the present invention.

[0045] Figure 4 This is the second structural schematic diagram of the water stop body in the present invention.

[0046] Figure 5 It is the third structural schematic diagram of the water stop body in the present invention.

[0047] Figure 6 It is a cross-sectional view of the water stop body of the present invention.

[0048] Figure 7 It is a schematic diagram of the internal structure of the outer buoy in the present invention.

[0049] Figure 8 It is a schematic diagram of the outer bottom structure of the outer buoy in the present invention.

[0050] Fig. 9 It is a structural schematic diagram of the time-delay one-way valve in the present invention.

[0051] Fig.10 It is a structural schematic diagram of the brush ring float assembly in the present invention.

[0052] Fig.11 It is a structural schematic diagram of the water tank buoy assembly in the present invention.

[0053] Fig.12 It is an exploded view of the brush ring water-stop assembly of the present invention.

[0054] Fig.13 It is an exploded view of the water tank water stop assembly in the present invention.

[0055] Fig.14 It is a structural schematic diagram of the anti-siphon component in the present invention.

[0056] Fig.15 This is one of the cross-sectional views of a water inlet valve for realizing waterway switching according to the present invention.

[0057] Fig.16 This is the second cross-sectional view of a water inlet valve for realizing waterway switching according to the present invention.

[0058] Explanation of the reference numerals: 1-water stop body, 11-total water inlet channel, 12-brush ring water inlet hole, 13-water tank water inlet hole, 14-first extension section, 141-first water stop installation hole, 15-second extension section, 151-second water stop installation hole, 16-total water inlet pipe, 161-vertical positioning block, 17-water tank water channel outlet, 171-first water replenishment port, 172-second water replenishment port, 173-brush ring water replenishment pipe, 18-anti-siphon assembly, 19-brush ring water channel interface, 2-brush ring control mechanism, 21-brush ring water stop assembly, 211 water stop conduit, 212 first water stop cover, 2121-first pressure relief hole, 213 first water stop rubber pad, 214-first sealing pad, 215-sealing ring, 22-brush ring float assembly, 221- Brush ring float, 222-brush ring screw, 23-brush ring lifting rod, 231-first extension part, 2311-first placement groove, 3-water tank control mechanism, 31-water tank water stop assembly, 311-water stop core, 312-second water stop cover, 3121-second pressure relief hole, 313-second water stop rubber pad, 314-second sealing pad, 32-water tank float assembly, 321-water tank float, 322-water tank screw, 33-water tank lifting rod, 331-second extension part, 3311-second placement groove, 4-outer float, 41-water tank inner cavity, 411-drainage hole, 42-brush ring inner cavity, 43-pipe jack, 431-vertical positioning groove, 44-first avoidance groove, 45-second avoidance groove, 5-delay one-way valve, 51-delay small hole. [Specific implementation method]

[0059] See also Figures 1 to 16 As shown, the present invention is a water inlet valve for realizing waterway switching, the water inlet valve comprises a water stop body 1, a brush ring control mechanism 2, a water tank control mechanism 3 and an outer buoy 4;

[0060] The water stop body 1 has a main water inlet channel 11, a brush ring water inlet hole 12 and a water tank water inlet hole 13. The brush ring water inlet hole 12 is connected to the main water inlet channel 11 for supplying water to the brush ring waterway, and the water tank water inlet hole 13 is connected to the main water inlet channel 11 for supplying water to the water tank waterway. The outer buoy 4 has a water tank inner cavity 41 and a brush ring inner cavity 42.

[0061] The brush ring control mechanism 2 includes a brush ring water stop assembly 21, a brush ring float assembly 22 and a brush ring lifting rod 23. The brush ring water stop assembly 21 is sealed in the brush ring water inlet hole 12 to realize independent control of the brush ring water channel. The brush ring float assembly 22 is arranged in the brush ring inner cavity 42; one end of the brush ring lifting rod 23 is connected to the brush ring float assembly 22, and the other end of the brush ring lifting rod 23 is rotatably connected to the pressure relief end of the brush ring water stop assembly 21. The brush ring float assembly 22 is linked to the brush ring lifting rod 23 to control the opening and closing of the brush ring water stop assembly 21, thereby realizing the on-off control of the brush ring water channel;

[0062] The water tank control mechanism 3 includes a water tank water-stopping assembly 31, a water tank float assembly 32 and a water tank lifting rod 33. The water tank water-stopping assembly 31 is sealed in the water inlet hole 13 of the water tank, and the water tank float assembly 32 is arranged in the inner cavity 41 of the water tank; one end of the water tank lifting rod 33 is connected to the water tank float assembly 32, and the other end of the water tank lifting rod 33 is rotatably connected to the pressure relief end of the water tank water-stopping assembly 31. The water tank float assembly 32 is linked to the water tank lifting rod 33 to control the opening and closing of the water tank water-stopping assembly 31, thereby realizing the on-off control of the water channel of the water tank.

[0063] From the above, it can be seen that the present invention adopts two sets of water-stopping mechanisms, one set of water-stopping structures is used to independently control the brush ring water channel, and the other set of water-stopping structures is used to independently control the water tank water channel; at the same time, both water channels are controlled by float assemblies. Compared with the existing solenoid valve control method or airbag control method, it not only achieves the purpose of controlling the water supply of the two water channels, but also the pure mechanical control method has better stability, and there will be no situation where the water cannot be used due to power outages or water will not stop.

[0064] In the present invention, in order to achieve the purpose of brushing the circle first, the inner cavity 42 of the brush circle is higher than the inner cavity 41 of the water tank.

[0065] In the present invention, in order to realize the time-delay function, a drainage hole 411 is provided at the bottom of the water tank inner cavity 41 .

[0066] In the present invention, in order to realize the water circuit switching of brushing the circle first and then the water tank, a time-delay one-way valve 5 is provided on the drainage hole 411, and a time-delay small hole 51 for drainage is provided on the time-delay one-way valve 5.

[0067] When the present invention is working, since the brush ring cavity 42 is higher than the water tank cavity 41, the water level of the brush ring cavity 42 is higher than the working water level of the water tank; when the working water level of the water tank drops, the brush ring float assembly 22 is driven by an external mechanism (not shown) to quickly press down to squeeze out the water in the brush ring cavity 42, and the brush ring water stop assembly 21 opens to allow the water in the total water inlet flow channel 11 to enter the brush ring waterway, thereby achieving the purpose of brushing the ring. Since the bottom of the water tank cavity 41 is provided with a delay check valve 5, the water in the water tank cavity 41 will be slowly discharged through the delay hole 51 of the delay check valve 5. When the water in the water tank cavity 41 is emptied, the water tank float assembly 32 drops, and the water tank water stop assembly 31 opens to allow the water in the total water inlet flow channel 11 to enter the water tank waterway, thereby achieving the purpose of storing water in the water tank. As can be seen from the above, the technical solution of the present invention can well realize the mutual switching of the two waterways of the brush ring and the water tank, so as to achieve the purpose of brushing the ring first and then the water tank, which is extremely convenient to use.

[0068] In the present invention, in order to facilitate the installation of the brush ring water stop assembly 21, the outer wall of the upper end of the water stop body 1 is provided with a first extension section 14, and the outer end surface of the first extension section 14 is provided with a first water stop member installation hole 141 connected to the brush ring water inlet hole 12.

[0069] In the present invention, in order to facilitate the installation of the water tank water stop assembly 31, the outer wall of the upper end of the water stop body 1 is provided with a second extension section 15, and the outer end surface of the second extension section 15 is provided with a second water stop installation hole 151 connected to the water tank water inlet hole 13.

[0070] In the present invention, in order to facilitate the arrangement and operation of the lifting rod, the first extension section 14 and the second extension section 15 are arranged in parallel on both sides of the upper end of the water stop body 1. At the same time, the parallel arrangement of the first extension section 14 and the second extension section 15 can also make the entire water inlet valve structure look more compact and beautiful.

[0071] In the present invention, in order to facilitate the installation and operation of the brush ring lifting rod 23, the brush ring inner cavity 42 is located directly below the second extension section 15. Since the brush ring buoy assembly 22 and the brush ring water stop assembly 21 need to be connected through the brush ring lifting rod 23 to realize the brush ring waterway control during the specific operation, the brush ring inner cavity 42 is arranged directly below the second extension section 15, which can be very convenient for the installation and swinging operation of the brush ring lifting rod 23.

[0072] In the present invention, in order to facilitate the installation and operation of the water tank lifting rod 33, the water tank inner cavity 41 is located directly below the first extension section 14. Since the water tank lifting rod 33 is required to connect the water tank float assembly 32 and the water tank water stop assembly 31 to realize the water tank waterway control during the specific operation, the water tank inner cavity 41 is arranged directly below the first extension section 14, which can be very convenient for the installation and swinging operation of the water tank lifting rod 33.

[0073] In the present invention, in order to make the overall structure of the entire water inlet valve more compact and beautiful, the brush ring lifting rod 23 is located on one side of the first extension section 14 and the second extension section 15 in the horizontal direction, and the brush ring lifting rod 23 is set as close to the first extension section 14 and the second extension section 15 as possible.

[0074] In the present invention, in order to avoid mutual influence between the brush ring lifting rod 23 and the water tank lifting rod 33, the water tank lifting rod 33 is located on the other side of the first extension section 14 and the second extension section 15 in the horizontal direction, and the water tank lifting rod 33 is arranged as close to the first extension section 14 and the second extension section 15 as possible.

[0075] In the present invention, since water supply pipelines are generally laid on the ground, in order to facilitate the access of water supply pipelines, the lower part of the water stop body 1 is the main water inlet pipeline 16, and the main water inlet channel 11 is located in the main water inlet pipeline 16.

[0076] In the present invention, in order to facilitate the installation of the main water inlet pipe 16 and make the structure of the water inlet valve more compact, a pipe plug hole 43 is provided in the middle of the outer buoy 4, and the main water inlet pipe 16 is inserted into the pipe plug hole 43.

[0077] In the present invention, in order to limit the main water inlet pipe 16 and prevent the main water inlet pipe 16 from axial rotation, the inner wall of the pipe jack 43 is provided with a vertical positioning groove 431, and the outer wall of the main water inlet pipe 16 is provided with a vertical positioning block 161 matching the vertical positioning groove 431. In a specific implementation, in order to achieve more effective positioning, the inner wall of the pipe jack 43 is symmetrically provided with two vertical positioning grooves 431 along the axial direction, and the outer wall of the main water inlet pipe 16 is equipped with two vertical positioning blocks 161.

[0078] In the present invention, in order to facilitate water replenishment, a water tank water channel outlet 17 is provided on the top of the water stop body 1, and the water tank water channel outlet 17 is connected to the water tank water inlet hole 13.

[0079] In the present invention, in order to replenish water to the water tank, a first water replenishment port 171 for replenishing water to the water tank is provided at the water outlet 17 of the water tank.

[0080] In the present invention, in order to replenish water to the brush ring inner cavity 42, a second water replenishment port 172 for replenishing water to the brush ring inner cavity 42 is provided at the water tank water path outlet 17. That is, in the present invention, the water tank water path outlet 17 can provide a part of the water in the water tank water path to the water tank, and at the same time, can provide another part of the water to the brush ring inner cavity 42, so as to facilitate closing the brush ring water stop assembly 21 after the brushing is completed.

[0081] In the present invention, in order to more accurately and quickly replenish water to the brush ring inner cavity 42 , the second water replenishment port 172 is provided with a brush ring water replenishment pipe 173 extending to the top of the brush ring inner cavity 42 .

[0082] In the present invention, in order to prevent water in the water tank water channel from escaping from the top and avoid water backflow, an anti-siphon component 18 is provided at the upper end of the water tank water channel outlet 17. The anti-siphon component 18 is an existing component and will not be described in detail here.

[0083] In the present invention, in order to facilitate the connection with the brush ring water channel on the upper part of the toilet bowl, the outer wall of the upper end of the water stop body 1 is provided with a brush ring water channel interface 19, and the brush ring water channel interface 19 is connected to the brush ring water inlet hole 12.

[0084] In the present invention, the brush ring float assembly 22 includes a brush ring float 221 and a brush ring screw 222. The brush ring float 221 is placed in the brush ring inner cavity 42, and the brush ring screw 222 is fixed to the outer wall of the brush ring float 221. By setting the brush ring screw 222 on the outer wall of the brush ring float 221, it is possible to avoid damaging the sealing of the bottom of the brush ring inner cavity 42. When working, the water in the brush ring inner cavity 42 is squeezed out by pressing the brush ring screw 222.

[0085] In the present invention, in order to facilitate the passing of the brush ring screw 222 , the outer wall of the outer buoy 4 is provided with a first avoidance groove 44 for the brush ring screw 222 to pass through.

[0086] In the present invention, the water tank float assembly 32 includes a water tank float 321 and a water tank screw 322. The water tank float 321 is placed in the water tank inner cavity 41, and the water tank screw 322 is fixed to the outer wall of the water tank float 321. By setting the water tank screw 322 on the outer wall of the water tank float 321, it is possible to avoid damaging the bottom structure of the water tank inner cavity 41. During operation, when the water in the water tank inner cavity 41 is discharged to cause the water tank float 321 to descend, the water tank screw 322 can drive the water tank lifting rod 33 to open the water tank water stop assembly 31.

[0087] In the present invention, in order to facilitate the passage of the water tank screw 322 , the outer wall of the outer buoy 4 is provided with a second avoidance groove 45 for the water tank screw 322 to pass through.

[0088] In the present invention, the brush ring water-stop assembly 21 includes a water-stop conduit 211, a first water-stop cover 212, a first water-stop rubber pad 213, a first sealing pad 214 and a sealing ring 215; the water-stop conduit 211 is installed at the brush ring water inlet hole 12, the water-stop conduit 211 is provided with a first water-stop port (not shown), and the sealing ring 215 is sleeved on the insertion end of the water-stop conduit 211; the first water-stop cover 212 is buckled on the end of the first extension section 14, and the first water-stop rubber pad 213 is provided between the water-stop conduit 211 and the first The water stop cover 212 is used to seal the first water stop port; the first water stop cover 212 is provided with a first pressure relief chamber (not shown) located on the side of the first water stop rubber pad 213 facing away from the first water stop port, the first water stop rubber pad 213 is provided with a first pressurization hole (not shown) for allowing water in the total water inlet channel 11 to enter the first pressure relief chamber, the first water stop cover 212 is provided with a first pressure relief hole 2121 for connecting the first pressure relief chamber with the external atmospheric pressure; the first sealing pad 214 is sealed on the first pressure relief hole 2121. During operation, when the first sealing gasket 214 is tightly sealed on the first pressure relief hole 2121, the first water-stopping rubber pad 213 will block the first water-stopping port under the action of internal pressure, so that the brush ring water path is disconnected; and when the first sealing gasket 214 does not block the first pressure relief hole 2121, the internal pressure will be discharged through the first pressure relief hole 2121 so that the first water-stopping rubber pad 213 does not block the first water-stopping port, thereby making the brush ring water path conductive and realizing the brush ring function. Since the brush ring water-stopping assembly 21 is an existing water-stopping assembly, the brush ring water-stopping assembly 21 will not be further introduced here.

[0089] In the present invention, one end of the brush ring lifting rod 23 is sleeved on the upper end of the brush ring screw 222, and the other end of the brush ring lifting rod 23 is rotatably connected to the first water stop cover 212, and specifically, the rotatable connection with the first water stop cover 212 can be achieved through a rotating shaft; in order to effectively prevent the first sealing gasket 214 from running out, a first extension portion 231 is downwardly provided at the rotating end of the brush ring lifting rod 23, and the inner surface of the first extension portion 231 is provided with a first placement groove 2311 for placing the first sealing gasket 214.

[0090] In the present invention, the water tank water stop assembly 31 includes a water stop core 311, a second water stop cover 312, a second water stop rubber pad 313 and a second sealing pad 314; the water stop core 311 is installed at the water inlet hole 13 of the water tank, and a second water stop opening (not shown) is provided on the water stop core 311; the second water stop cover 312 is buckled on the end of the second extension section 15, and the second water stop rubber pad 313 is provided between the water stop core 311 and the second water stop cover 312 for sealing the second water stop. The second water stop cover 312 is provided with a second pressure relief cavity (not shown) located on the side of the second water stop rubber pad 313 facing away from the second water stop port. The second water stop rubber pad 313 is provided with a second pressurizing hole (not shown) for allowing the water in the total water inlet channel 11 to enter the second pressure relief cavity. The second water stop end cover 312 is provided with a second pressure relief hole 3121 for connecting the second pressure relief cavity with the external atmospheric pressure. The second sealing gasket 314 is sealed on the second pressure relief hole 3121. During operation, when the second sealing gasket 314 is tightly sealed on the second pressure relief hole 3121, the second water stop rubber pad 313 will block the second water stop port under the action of internal pressure to disconnect the water path of the water tank; and when the second sealing gasket 314 does not block the second pressure relief hole 3121, the internal pressure will be discharged through the second pressure relief hole 3121 so that the second water stop rubber pad 313 does not block the second water stop port, thereby making the water path of the water tank conductive and realizing the water replenishment function. Since the water tank water-stopping assembly 31 is an existing water-stopping assembly, the water tank water-stopping assembly 31 will not be further introduced here.

[0091] In the present invention, one end of the water tank lifting rod 33 is sleeved on the upper end of the water tank screw 322, and the other end of the water tank lifting rod 33 is rotatably connected to the second water stop cover 312, and specifically, the rotatable connection with the second water stop cover 312 can be achieved through a rotating shaft; in order to effectively prevent the second sealing gasket 314 from running out, a second extension portion 331 is downwardly provided at the rotating end of the water tank lifting rod 33, and the inner surface of the second extension portion 331 is provided with a second placement groove 3311 for placing the second sealing gasket 314.

[0092] The waterway switching working principle of the water inlet valve of the present invention is as follows: when the working water level of the water tank drops, the brush ring float assembly 22 is driven by an external mechanism to quickly press down to squeeze out the water in the brush ring inner cavity 42, and the brush ring water stop assembly 21 opens to allow the water in the total water inlet flow channel 11 to enter the brush ring waterway, thereby achieving the brushing of the toilet bowl. At the same time, the water in the water tank inner cavity 41 is slowly discharged through the delay hole 51 of the delay check valve 5. When the water in the water tank inner cavity 41 is emptied, the water tank float assembly 32 drops, and the water tank water stop assembly 31 opens to allow the water in the total water inlet flow channel 11 to enter the water tank waterway. A part of the water in the water circuit of the water tank will enter the brush ring cavity 42 through the brush ring water supply pipe 173. Since the bottom of the brush ring cavity 42 is closed, the brush ring float assembly 22 will slowly float up to close the brush ring water stop assembly 21. Another part of the water in the water circuit of the water tank will enter the water tank cavity 41 through the first water supply port 171. Since there is a drainage hole at the bottom of the water tank cavity 41, the working water level of the water tank will slowly rise and gradually fill the water tank cavity 41. After the water tank cavity 41 is filled with water, the water tank float assembly 32 floats up to close the water tank water stop assembly 31. When the working water level of the water tank reaches the preset height, the water level of the brush ring cavity 42 is higher than the working water level of the water tank, and the brush ring water stop assembly 21 and the water tank water stop assembly 31 are both in a closed state.

[0093] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A water inlet valve for realizing waterway switching, characterized in that: It includes a water stop body, a brush ring control mechanism, a water tank control mechanism and an external buoy; The water stop body is provided with a main water inlet channel, a brush ring water inlet hole and a water tank water inlet hole, the brush ring water inlet hole is connected to the main water inlet channel, and the water tank water inlet hole is connected to the main water inlet channel; the outer buoy is provided with a water tank inner cavity and a brush ring inner cavity; The brush ring control mechanism includes a brush ring water stop assembly, a brush ring float assembly and a brush ring lifting rod. The brush ring water stop assembly is sealed in the brush ring water inlet hole, and the brush ring float assembly is arranged in the inner cavity of the brush ring; one end of the brush ring lifting rod is connected to the brush ring float assembly, and the other end of the brush ring lifting rod is rotatably connected to the pressure relief end of the brush ring water stop assembly, and the brush ring lifting rod is linked to the brush ring float assembly to control the opening and closing of the brush ring water stop assembly; The water tank control mechanism comprises a water tank water stop assembly, a water tank float assembly and a water tank lifting rod. The water tank water stop assembly is sealed in the water inlet hole of the water tank, and the water tank float assembly is arranged in the inner cavity of the water tank; one end of the water tank lifting rod is connected to the water tank float assembly, and the other end of the water tank lifting rod is rotatably connected to the pressure relief end of the water tank water stop assembly, and the water tank lifting rod is linked to the water tank float assembly to control the opening and closing of the water tank water stop assembly; The outer wall of the upper end of the water-stop body is provided with a brush ring water channel interface, which is connected to the brush ring water inlet hole; the top of the water-stop body is provided with a water tank water channel outlet, which is connected to the water tank water inlet hole.

2. A water inlet valve for realizing waterway switching as claimed in claim 1, characterized in that: The inner cavity of the brush ring is higher than the inner cavity of the water tank.

3. A water inlet valve for realizing waterway switching as claimed in claim 2, characterized in that: The bottom of the inner cavity of the water tank is provided with a drainage hole for delaying.

4. A water inlet valve for realizing waterway switching as claimed in claim 3, characterized in that: The drainage hole is provided with a time-delay one-way valve, and the time-delay one-way valve is provided with a time-delay small hole for drainage.

5. A water inlet valve for realizing waterway switching as claimed in claim 4, characterized in that: The outer wall of the upper end of the water stop body is provided with a first extension section, and the outer end surface of the first extension section is provided with a first water stop member installation hole connected to the water inlet hole of the brush ring.

6. A water inlet valve for realizing waterway switching as claimed in claim 5, characterized in that: The outer wall of the upper end of the water stop body is provided with a second extension section, and the outer end surface of the second extension section is provided with a second water stop installation hole connected to the water inlet hole of the water tank.

7. A water inlet valve for realizing waterway switching as claimed in claim 6, characterized in that: The first extension section and the second extension section are arranged in parallel on both sides of the upper end of the water-stop body.

8. A water inlet valve for realizing waterway switching as claimed in claim 7, characterized in that: The brush ring inner cavity is located directly below the second extension section.

9. A water inlet valve for realizing waterway switching as claimed in claim 8, characterized in that: The water tank inner cavity is located directly below the first extension section.

10. A water inlet valve for realizing waterway switching as claimed in claim 9, characterized in that: The brush ring lifting rod is located on one side of the first extension section and the second extension section in the horizontal direction.

11. A water inlet valve for realizing waterway switching as claimed in claim 10, characterized in that: The water tank lifting rod is located on the other side of the first extension section and the second extension section in the horizontal direction.

12. A water inlet valve for realizing waterway switching according to claim 11, characterized in that: The lower part of the water-stop body is a main water inlet pipe, and the main water inlet flow channel is located in the main water inlet pipe.

13. A water inlet valve for realizing waterway switching according to claim 12, characterized in that: A pipeline insertion hole is arranged in the middle of the outer buoy, and the main water inlet pipeline is inserted into the pipeline insertion hole.

14. A water inlet valve for realizing waterway switching as claimed in claim 13, characterized in that: The inner wall of the pipeline jack is provided with a vertical positioning groove, and the outer wall of the main water inlet pipeline is provided with a vertical positioning block matching the vertical positioning groove.

15. A water inlet valve for realizing waterway switching as claimed in claim 14, characterized in that: A first water replenishment port for replenishing water to the water tank is provided at the water channel outlet of the water tank.

16. A water inlet valve for realizing waterway switching as claimed in claim 15, characterized in that: A second water replenishment port for replenishing water to the inner cavity of the brush ring is provided at the water outlet of the water tank.

17. A water inlet valve for realizing waterway switching according to claim 16, characterized in that: The second water replenishment port is equipped with a brush ring water replenishment pipeline extending to the top of the brush ring inner cavity.

18. A water inlet valve for realizing waterway switching according to claim 17, characterized in that: An anti-siphon component is provided at the upper end of the water tank waterway outlet.

19. A water inlet valve for realizing waterway switching as claimed in claim 18, characterized in that: The brush ring float assembly comprises a brush ring float and a brush ring screw. The brush ring float is placed in the inner cavity of the brush ring, and the brush ring screw is fixed to the outer wall of the brush ring float.

20. A water inlet valve for realizing waterway switching as claimed in claim 19, characterized in that: The outer wall of the outer buoy is provided with a first avoidance groove for the brush ring screw to pass through.

21. A water inlet valve for realizing waterway switching as claimed in claim 20, characterized in that: The water tank buoy assembly comprises a water tank buoy and a water tank screw. The water tank buoy is placed in the inner cavity of the water tank, and the water tank screw is fixed to the outer wall of the water tank buoy.

22. A water inlet valve for realizing waterway switching according to claim 21, characterized in that: The outer wall of the outer buoy is provided with a second avoidance groove for the water tank screw to pass through.

23. A water inlet valve for realizing waterway switching according to claim 22, characterized in that: The brush ring water-stop assembly includes a water-stop tube, a first water-stop cover, a first water-stop rubber pad, a first sealing pad and a sealing ring; the water-stop tube is installed at the water inlet hole of the brush ring, the water-stop tube is provided with a first water-stop port, and the sealing ring is sleeved on the insertion end of the water-stop tube; the first water-stop cover is buckled on the end of the first extension section, the first water-stop rubber pad is provided between the water-stop tube and the first water-stop cover for sealing on the first water-stop port; the first water-stop cover is provided with a first pressure relief chamber located on the side of the first water-stop rubber pad facing away from the first water-stop port, the first water-stop rubber pad is provided with a first pressurizing hole for allowing water in the total water inlet channel to enter the first pressure relief chamber, the first water-stop cover is provided with a first pressure relief hole for connecting the first pressure relief chamber with the external atmospheric pressure; the first sealing pad is sealed on the first pressure relief hole.

24. A water inlet valve for realizing waterway switching as claimed in claim 23, characterized in that: One end of the brush ring lifting rod is sleeved on the upper end of the brush ring screw, and the other end of the brush ring lifting rod is rotatably connected to the first water stop cover; a first extension portion is provided downwardly at the rotating end of the brush ring lifting rod, and an inner surface of the first extension portion is provided with a first placement groove for placing a first sealing gasket.

25. A water inlet valve for realizing waterway switching as claimed in claim 24, characterized in that: The water tank water-stopping assembly includes a water-stopping core, a second water-stopping cover, a second water-stopping rubber pad and a second sealing pad; the water-stopping core is installed at the water inlet hole of the water tank, and the water-stopping core is provided with a second water-stopping port; the second water-stopping cover is buckled on the end of the second extension section, and the second water-stopping rubber pad is arranged between the water-stopping core and the second water-stopping cover for sealing the second water-stopping port; the second water-stopping cover is provided with a second pressure relief chamber located on the side of the second water-stopping rubber pad facing away from the second water-stopping port, the second water-stopping rubber pad is provided with a second pressurizing hole for allowing water in the total water inlet channel to enter the second pressure relief chamber, the second water-stopping end cover is provided with a second pressure relief hole for connecting the second pressure relief chamber with the external atmospheric pressure, and the second sealing pad is sealed on the second pressure relief hole.

26. A water inlet valve for realizing waterway switching as claimed in claim 25, characterized in that: One end of the water tank lifting rod is sleeved on the upper end of the water tank screw, and the other end of the water tank lifting rod is rotatably connected to the second water stop cover; a second extension portion is provided downwardly at the rotating end of the water tank lifting rod, and a second placement groove for placing a second sealing gasket is provided on the inner surface of the second extension portion.

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