Buoy assembly and valve body for closestool

Abstract

The utility model provides a float bowl assembly and a valve body for a closestool. The float bowl assembly comprises a float bowl cup, a float bowl and a balance weight small float bowl. The buoy cup is provided with an opening and a drain hole, and a one-way valve with buoyancy is arranged at the drain hole. And the buoy is arranged in the buoy cup. And the counterweight small buoy is positioned above the one-way valve and is assembled with the one-way valve. And the counterweight small buoy is provided with a counterweight drain hole and a counterweight water inlet. According to the utility model, the counterweight small float bowl higher than the one-way valve in mounting position is arranged, so that water can be fed into the water inlet valve in advance for the second time, when the water inlet valve is used in a closestool with a pre-moistening function, the effect of saving pre-moistening water is achieved, and after the pre-moistening water is discharged, the action of the one-way valve can be matched, so that water can be supplemented to the water tank of the closestool.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen and bathroom, in particular to a float assembly and a valve body for a toilet. Background Art

[0002] The water inlet valve for toilets can add water to the toilet tank. At present, most toilet water inlet valves on the market use floats to directly control the switching of water inlet and water stop according to the water level in the water tank. However, these float structures are relatively simple, and when the water pressure is low, there is a problem that the water stop speed is slow or even cannot be completely stopped. Therefore, in order to solve the above technical problems, the prior art usually provides a float cup, and the float is placed in the float cup so that it can move up and down. The bottom of the float cup is provided with a drain hole, and the drain hole is controlled to open and close by a one-way valve with a buoyancy chamber. However, the existing technology with a float cup has a relatively low position of the drain hole of the float cup. In some scenarios where a secondary water inlet valve is required (i.e., after the toilet tank discharges a certain amount of water, it is necessary to immediately refill the toilet tank with water to restore its water level to the initial level), for example, in some toilets with a pre-moistening function, before defecation or urination, the toilet tank discharges a certain amount of pre-moistening water to pre-moisten the inner wall of the toilet. After that, the water level in the toilet tank needs to be lowered to below the position of the drain hole of the float cup before the water inlet valve can be opened again to replenish water in the toilet tank to return the water level in the tank to the initial position. Otherwise, the toilet will have insufficient flushing water in the subsequent post-defecation flushing stage.

[0003] The inventor found that, because the drain hole of the existing float cup is located at a relatively low position, the water level of the toilet tank needs to be lowered to below the drain hole of the float cup before the water inlet valve can be opened again to replenish the toilet tank with water, which will cause excessive pre-moistening water to flow out, resulting in water waste. Therefore, the utility model provides a float structure that can solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a buoy structure which can realize secondary water inlet of a water inlet valve in advance to save pre-moistening water.

[0005] In a first aspect, a float assembly is provided for controlling the opening and closing of a water inlet valve of a toilet tank, comprising a float cup, a float and a small weighted float.

[0006] The float cup is installed in the toilet water tank, with an opening for water inlet at the top and a drain hole at the bottom. A buoyant one-way valve is set at the drain hole. The one-way valve floats up and closes the drain hole under the action of water in the toilet water tank, and opens the drain hole when the one-way valve falls.

[0007] The float is installed in the float cup and rises or falls with the water level in the float cup. Therefore, when the water level in the water tank reaches the top of the float cup and fills the float cup, the float can quickly float to a state where the water inlet valve can completely stop water, thereby avoiding the problem that the water inlet valve has a slow water-stopping speed or even cannot completely stop water when the water pressure is low.

[0008] The small counterweight buoy is assembled with the one-way valve, and the small counterweight buoy is located above the one-way valve. The small counterweight buoy is provided with a counterweight drain hole and a counterweight water inlet, and the counterweight drain hole is located at the lower part of the small counterweight buoy. The small counterweight buoy introduces counterweight water through the counterweight water inlet and discharges the counterweight water through the counterweight drain hole.

[0009] When the one-way valve and the small counterweight float are immersed in the water of the toilet tank, the sum of the buoyancy forces on the one-way valve and the small counterweight float is greater than the sum of their own weights, so that when the tank is full of water, the one-way valve is in a state of blocking the drain hole.

[0010] When part of the counterweight small float is exposed above the water surface of the toilet tank, the sum of the buoyancy forces on the one-way valve and the counterweight small float is less than the sum of the deadweights of the one-way valve, the counterweight small float and the counterweight water above the water surface of the tank.

[0011] When the water in the water tank is partially discharged or drawn out, when the water level is higher than the one-way valve, the one-way valve can be controlled by the small counterweight float to open the drain hole of the float cup in advance, without the need to open the one-way valve until the water level drops to the position of the one-way valve, so that part of the water in the float cup can be discharged in advance, so that the internal water level can be lowered, and then the float can be lowered, and the water inlet valve of the toilet can be opened to replenish the water in the toilet water tank, that is, after the toilet is pre-moistened with water, the water tank of the toilet can be replenished with water to avoid the problem of insufficient hydraulic power and water volume and incomplete flushing during subsequent use. Since the small counterweight float is located above the one-way valve, compared with the background technology without the small counterweight float, this solution can realize the secondary water inlet of the water inlet valve in advance (here "secondary water inlet" means that after the toilet water tank discharges a certain amount of water, it is necessary to immediately refill the toilet water tank to restore its water level to the initial water level).

[0012] After the water in the water tank is drained, the weighted water of the weighted small float is discharged through the weighted drain hole. When the water tank is filled with water again, the one-way valve is immersed in the water in the toilet tank. The buoyancy of the one-way valve is greater than the sum of the deadweight of the one-way valve and the weighted small float, so that it can float up quickly and block the drain hole of the float cup, preventing water from entering the float cup through the drain hole, thereby achieving the above-mentioned effect of quickly and completely stopping water from the water inlet valve.

[0013] The float assembly provided by the utility model can achieve the effect of quickly and reliably closing the water inlet valve under the cooperation of the one-way valve, and in addition, by arranging a small counterweight float higher than the installation position of the one-way valve, the effect of saving pre-moistening water can be achieved. After the pre-moistening water is discharged, the one-way valve can be cooperated with to achieve the water replenishment of the toilet tank.

[0014] Preferably, the small counterweight buoy is assembled with a one-way valve in a height-adjustable manner, so that the water output of the pre-moistening water can be adjusted.

[0015] Preferably, the one-way valve includes an adjusting rod arranged in a vertical direction, and the small counterweight buoy is height-adjustably connected to the adjusting rod.

[0016] Preferably, the small counterweight buoy is provided with an adjusting screw hole in the vertical direction, the circumference of the adjusting rod is provided with screw threads, and the adjusting rod passes through the adjusting screw hole of the small counterweight buoy through the screw threads, forming a height adjustment structure with a simple structure.

[0017] Preferably, a pair of mounting ears arranged up and down are provided on the side of the float cup, and the mounting ears are provided with a C-shaped guide opening with the axial direction in the vertical direction. The two ends of the adjusting rod are movably installed in the two mounting ears up and down through the C-shaped guide opening, so that the installation of various components of the float assembly is more compact.

[0018] In the second aspect, a valve body for a toilet is provided, comprising an inlet valve and the float assembly described in the first aspect, the inlet valve being provided with a first lifting rod for controlling water inlet or water stop, the float of the float assembly being connected to the first lifting rod, and when the float falls, the first lifting rod controls the water inlet valve to discharge water, and when the float rises, the first lifting rod controls the water inlet valve to stop water.

[0019] Preferably, it also includes a switching valve, which is provided with a water inlet channel, a first water channel, and a second water channel. The switching valve is provided with a second lifting rod for controlling the water inlet channel to switch and connect the first water channel and the second water channel. The float of the float assembly is connected to the second lifting rod, and when the float falls, the second lifting rod controls the switching valve to switch to the water inlet channel to connect the second water channel. When the float rises, the second lifting rod controls the switching valve to switch to the water inlet channel to connect the first water channel.

[0020] Preferably, the switching valve is provided with a back pressure chamber with a pressure relief hole and a water-stopping rubber pad, and the switching valve also includes a plug and a return spring; the water-stopping rubber pad is located between the pressure relief hole and the water outlet end of the water inlet channel, and the water-stopping rubber pad is also located between the water outlet end of the water inlet channel and the water inlet end of the first water channel; the water inlet channel and the second water channel are provided with a connecting hole, the plug and the return spring are arranged at one end of the water inlet channel connected to the second water channel, and the plug blocks the connecting hole under the action of the return spring; the water inlet channel is connected to the outlet of the pump used to suck water in the toilet tank. The two openings are connected, the second lifting rod is swingably installed close to the pressure relief hole, and when the second lifting rod blocks the pressure relief hole, the water-stopping rubber pad blocks the water outlet end of the water inlet channel, and the first water channel is in a water-stop state. The plug compresses the reset spring under the action of water pressure and opens the connecting hole, and the second water channel is connected to the water inlet channel, and water flows out; when the second lifting rod opens the pressure relief hole, the water-stopping rubber pad opens the water outlet end of the water inlet channel, and the first water channel is in a water-out state, the plug is reset and blocks the connecting hole, and the second water channel is in a water-stop state.

[0021] Preferably, the water inlet valve also adopts a back pressure chamber structure.

[0022] Preferably, the small counterweight float receives the water discharged from the pressure relief hole, so that in the initial stage of draining the water tank, by continuously replenishing the counterweight water in the small counterweight float, the problem of insufficient water volume after the counterweight water partially leaks out from the counterweight drain hole and being unable to press down the one-way valve to open the drain hole of the float cup can be avoided.

[0023] Preferably, in order to allow the drainage from the pressure relief hole to smoothly enter the small counterweight float and replenish more counterweight water, the pressure relief hole is located at the top of the switching valve, and a water guide enclosure surrounding the pressure relief hole is provided at the top of the switching valve, the water guide enclosure is provided with an opening, and the switching valve is provided with a water guide groove and a water guide plate at the bottom of the opening, the small counterweight float is located at the bottom of the water guide plate, and the counterweight water inlet is located at the top of the small counterweight float, and receives the flowing water from the water guide plate.

[0024] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0025] The utility model provides a float assembly, which is achieved by assembling a small counterweight float and a one-way valve of a float cup, wherein the small counterweight float is located above the one-way valve, and is provided with a counterweight drain hole and a counterweight water inlet, wherein the counterweight drain hole is located at the lower part of the small counterweight float, and the small counterweight float introduces counterweight water through the counterweight water inlet, and discharges the counterweight water through the counterweight drain hole. In this way, when the water level in the toilet tank drops to the position of the small counterweight float, the gravity of the counterweight water of the small counterweight float can act on the one-way valve, thereby causing the one-way valve to drop in advance, thereby discharging the water in the float cup in advance, and realizing the early water filling of the water inlet valve, without the water level in the toilet tank dropping to the position of the one-way valve, and the one-way valve drops to open the water inlet valve only after losing its buoyancy. Compared with the prior art, the utility model can realize the secondary water inlet of the water inlet valve in advance by setting a small counterweight float higher than the installation position of the one-way valve. When it is used in a toilet with a pre-moistening function, it has the effect of saving pre-moistening water, and after the pre-moistening water is discharged, it can cooperate with the action of the one-way valve to realize the water replenishment of the toilet water tank;

[0026] The small counterweight float is provided with counterweight water to increase its own weight, thereby ensuring that the one-way valve is opened; in addition, the counterweight water can leak out through the counterweight drain hole, thereby ensuring that the one-way valve is not affected by the counterweight water when it floats again under the action of its own buoyancy, and the one-way valve can float reliably.

[0027] The valve body for toilets provided by the utility model has a pressure relief hole in its back pressure chamber, in which drainage can continuously replenish the counterweight water of the small counterweight float, thereby preventing the problem that after the counterweight water partially leaks out from the counterweight drainage hole, the water volume is insufficient and the one-way valve cannot be pressed down to open the drainage hole of the float cup, thereby affecting the water inlet of the water inlet valve and the switching timing of the switching valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0029] in:

[0030] Figure 1 A buoy assembly in a side view Figure 1 ;

[0031] Figure 2 A buoy assembly in a side view Figure 2 ; (cut open state)

[0032] Figure 3 Axial side view of a valve body for a toilet Figure 1 ;

[0033] Figure 4 Axial side view of a valve body for a toilet Figure 2 ;

[0034] Figure 5 It is an exploded view of a valve body for a toilet;

[0035] Figure 6 A cross-sectional view of a valve body for a toilet Figure 1 ; (When the water tank is full, the pressure relief hole is open and the water leakage hole is closed)

[0036] Figure 7 A cross-sectional view of a valve body for a toilet Figure 2 ; (The water tank is full and the water inlet valve stops water supply)

[0037] Figure 8 A cross-sectional view of a valve body for a toilet Figure 3 ; (In the early stage of drainage, the pump starts and water flows out of the first water channel)

[0038] Fig. 9 A cross-sectional view of a valve body for a toilet Figure 4 ; (In the early stage of drainage, the pump starts and water flows out of the first water channel)

[0039] Fig.10 A cross-sectional view of a valve body for a toilet Figure 5 ; (In the early stage of drainage, the pump starts and water flows out of the first water channel)

[0040] Fig.11 A cross-sectional view of a valve body for a toilet Figure 6 ; (When the water level in the water tank is low, the pressure relief hole is closed and the water leakage hole is open)

[0041] Fig.12 A cross-sectional view of a valve body for a toilet Figure 7 ; (The water level in the water tank is low and water is flowing into the water inlet valve)

[0042] Fig.13 A cross-sectional view of a valve body for a toilet Figure 8 ; (At the end of drainage, the pump starts and water flows out of the second water channel)

[0043] Fig.14 A cross-sectional view of a valve body for a toilet Figure 9 ; (At the end of drainage, the pump starts and water flows out of the second water channel)

[0044] Figures 1 to 14The symbols are: toilet valve body 1, water inlet channel 13, first water channel 14, second water channel 15, water inlet valve 20, first lifting rod 24, switching valve 30, back pressure chamber 31, water stop rubber pad 312, pressure relief hole 313, second lifting rod 314, plug 321, return spring 322, water guide enclosure 33, water guide groove 34, water guide plate 35, float assembly 40, float 41, float cup 42, opening 421, water leakage hole 422, one-way valve 423, adjusting rod 4231, counterweight small float 43, counterweight water leakage hole 431, counterweight water inlet 432, pump 2. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0046] See also Figure 1 and Figure 2 A float assembly 40 is used to control the opening and closing of a water inlet valve of a toilet tank, and includes a float cup 42, a float 41 and a small counterweight float 43.

[0047] The float cup 42 is installed in the toilet water tank, and is provided with an opening 421 for water inlet at the top and a drain hole 422 at the bottom. A buoyant one-way valve 423 is provided at the drain hole 422. The one-way valve 423 floats up and closes the drain hole 422 under the action of the water in the toilet water tank, and opens the drain hole 422 when the one-way valve 423 falls.

[0048] The float 41 is installed in the float cup 42 and floats up or down with the water level in the float cup 42, so that when the water level in the water tank reaches the top of the float cup 42 and fills the float cup 42, the float 41 can quickly float to a state where the water inlet valve 20 can completely stop water, avoiding the problem that the water inlet valve has a slow water-stopping speed or even cannot completely stop water when the water pressure is low.

[0049] The small counterweight buoy 43 and the one-way valve 423 are assembled together, and the small counterweight buoy 43 is located above the one-way valve 423. The small counterweight buoy 43 is provided with a counterweight drain hole 431 and a counterweight water inlet 432, and the counterweight drain hole 431 is located at the lower part of the small counterweight buoy. The small counterweight buoy 43 introduces counterweight water through the counterweight water inlet 432, and discharges the counterweight water through the counterweight drain hole 431.

[0050] Preferably, the small counterweight float 43 is assembled with the one-way valve 423 in a height-adjustable manner, so that the opening timing of the one-way valve 423 can be adjusted, and then the water output of the pre-moistening water of the toilet with the pre-moistening function can be adjusted. In one embodiment, the one-way valve 423 includes an adjusting rod 4231 arranged in a vertical direction, and the small counterweight float 43 is height-adjustably connected to the adjusting rod 4231. Specifically, optionally, the small counterweight float 43 is provided with an adjusting screw hole in the vertical direction, and the adjusting rod 4231 is provided with screw threads around the periphery, and the adjusting rod 4231 passes through the adjusting screw hole of the small counterweight float 43 through the screw threads to form a height adjustment structure with a simple structure.

[0051] Based on the above embodiments, in one embodiment, a pair of mounting ears arranged up and down are provided on the side of the float cup 42, and the mounting ears are provided with a C-shaped guide opening with the axial direction in the vertical direction. The two ends of the adjustment rod 4231 are movably installed up and down in the two mounting ears through the C-shaped guide opening, so that the installation of various components of the float assembly 40 is more compact.

[0052] During the toilet flushing stage, there are several states:

[0053] When the water tank is full of water, the one-way valve 423 and the small counterweight float 43 are both immersed in the water of the toilet tank. The sum of the buoyancy forces acting on the one-way valve 423 and the small counterweight float 43 is greater than the sum of their own weights. Therefore, when the water tank is full of water, the one-way valve 423 blocks the drain hole 422.

[0054] When the water level in the water tank drops, the small counterweight float 43 partially exposes the water surface of the toilet water tank, and the sum of the buoyancy forces on the one-way valve 423 and the small counterweight float 43 is less than the sum of the deadweights of the one-way valve 423, the small counterweight float 43 and the counterweight water above the water surface of the water tank. At this time, the one-way valve 423 begins to drop and open the drain hole 422 of the float cup 42. That is, when part of the water in the water tank is discharged or drawn out, when the water level is higher than the one-way valve 423, the one-way valve 423 can be controlled by the small counterweight float 43 to open the drain hole 422 of the float cup 42 in advance, without the need to open the one-way valve 423 until the water level drops to the position of the one-way valve 423, so that part of the water in the float cup 42 can be discharged in advance, so that the water level inside the float cup 42 is lowered, and then the float 41 can be lowered, and the water inlet valve 20 of the toilet is opened to replenish the toilet water tank. That is, after the toilet is pre-moistened with water, the water tank of the toilet can be replenished with water to avoid the problem of insufficient hydraulic power or water volume and incomplete flushing during subsequent use. Since the small counterweight float 43 is located above the one-way valve 423, compared with the background technology without the small counterweight float 43, this solution can realize the secondary water inlet of the water inlet valve in advance.

[0055] After the toilet is flushed, the water in the water tank is basically drained away, and the weighted water in the small counterweight float 43 is discharged through the weighted drain hole 431. When the water tank is filled with water again, as the water level of the water tank rises, when the one-way valve 423 is immersed in the water of the toilet tank, the buoyancy of the one-way valve 423 is greater than the sum of the weight of the one-way valve 423 and the small counterweight float 43 (at this time, there is no weighted water in the small counterweight float 43), so that the one-way valve 423 can float up quickly and block the drain hole 422 of the float cup 42, preventing water from entering the float cup 42 through the drain hole 422, thereby achieving the above-mentioned effect of quickly and completely stopping the water inlet valve 20. The weighted water in the small counterweight float 43 is discharged through the weighted drain hole 431, which can prevent the weighted water from affecting the re-floating of the one-way valve 423.

[0056] The float assembly 40 provided by the utility model, wherein the float cup 42 provided by the utility model can realize the effect of quickly closing the water inlet valve 20 under the cooperation of the one-way valve 423. In addition, by setting a small counterweight float 43 installed at a higher position than the one-way valve 423, the effect of saving pre-moistening water can be realized. After the pre-moistening water is discharged, the one-way valve 423 can be cooperated with to realize the water replenishment of the toilet tank.

[0057] See also Figures 1 to 14 In another embodiment, a valve body 1 for a toilet is provided, including an inlet valve 20 and the above-mentioned float assembly 40, the inlet valve 20 is provided with a first lifting rod 24 for controlling water inlet or water stop, the float 41 of the float assembly 40 is connected to the first lifting rod 24, and when the float 41 falls, the first lifting rod 24 controls the water inlet valve 20 to let water in, and when the float 41 rises, the first lifting rod 24 controls the water inlet valve 20 to stop water.

[0058] On the basis of the above embodiments, in one embodiment, the valve body 1 for the toilet further includes a switching valve 30, wherein the switching valve 30 is provided with a water inlet channel 13, a first water channel 14, and a second water channel 15, and the switching valve 30 is provided with a second lifting rod 314 for controlling the water inlet channel 13 to switch and connect the first water channel 14 and the second water channel 15, the float 41 of the float assembly 40 is connected to the second lifting rod 314, and when the float 41 falls, the second lifting rod 314 controls the switching valve 30 to switch to the water inlet channel 13 to connect the second water channel 15, and when the float 41 rises, the second lifting rod 314 controls the switching valve 30 to switch to the water inlet channel 13 to connect the first water channel 14.

[0059] The switching of the switching valve 30 of this embodiment is controlled by the buoy assembly 40. Therefore, by adjusting the height of the small counterweight buoy 43, it is also possible to adjust the switching timing of the switching valve 30. Specifically, when the position of the small counterweight buoy 43 is adjusted to be higher, the water inlet channel 13 will switch from being connected to the first water channel 14 to being connected to the second water channel 15 earlier; when the position of the small counterweight buoy 43 is adjusted to be lower, the water inlet channel 13 will switch from being connected to the first water channel 14 to being connected to the second water channel 15 later.

[0060] Specifically, the switching valve 30 is provided with a back pressure chamber 31 with a pressure relief hole 313 and a water-stopping rubber pad 312, and the switching valve 30 also includes a plug 321 and a return spring 322. The water-stopping rubber pad 312 is located between the pressure relief hole 313 and the water outlet end of the water inlet channel 13, and the water-stopping rubber pad 312 is also located between the water outlet end of the water inlet channel 13 and the water inlet end of the first water channel 14. The water inlet channel 13 and the second water channel 15 are provided with a connecting hole, and the plug 321 and the return spring 322 are provided at one end of the water inlet channel 13 connected to the second water channel 15, and the plug 321 blocks the connecting hole under the action of the return spring 322. The water inlet channel 13 is connected with the outlet of the pump 2 for pumping water in the toilet tank. The second lifting rod 314 is swingably installed close to the pressure relief hole 313. When the second lifting rod 314 blocks the pressure relief hole 313, the water-stopping rubber pad 312 blocks the water outlet end of the water inlet channel 13, and the first water channel 14 is in a water-stop state. The plug 321 compresses the reset spring 322 under the action of water pressure and opens the connecting hole. The second water channel 15 is connected with the water inlet channel 13 and water flows out. When the second lifting rod 314 opens the pressure relief hole 313, the water-stopping rubber pad 312 opens the water outlet end of the water inlet channel 13. The first water channel 14 is in a water-out state. The plug 321 resets and blocks the connecting hole, and the second water channel 15 is in a water-stop state. Of course, in some other embodiments, the switching valve 30 may also adopt other switching valve structures, such as using a rotating switching plate to alternately open the first water channel 14 and the second water channel 15, etc., as long as the switching valve can realize the switching of the water channel.

[0061] In this embodiment, the water inlet valve 20 also adopts a back pressure chamber structure with a pressure relief hole and a water-stop rubber pad, that is, the water inlet valve 20 adopts a well-known back pressure valve (or also called a pilot valve in this field), and the specific structure of the water inlet valve 20 is not described in detail here.

[0062] On the basis of the above embodiment, the small counterweight float 43 receives the water discharged from the pressure relief hole 313, so that in the initial stage of water tank drainage, by continuously replenishing the counterweight water in the small counterweight float 43, it is possible to avoid the problem that the counterweight water is partially discharged from the counterweight drain hole 431 and the water volume is insufficient to press down the one-way valve 423 to open the drain hole 422 of the float cup 42. The small counterweight float 43 receives the water discharged from the pressure relief hole 313, which can ensure that there is enough counterweight water to act on the one-way valve 423 and smoothly open the one-way valve 423.

[0063] Preferably, in order to allow the drainage of the pressure relief hole 313 to smoothly enter the counterweight small float 43 and replenish more counterweight water, the pressure relief hole 313 is located at the top of the switching valve 30, and the top of the switching valve 30 is provided with a water guide enclosure 33 surrounding the pressure relief hole 313, and the water guide enclosure 33 is provided with an opening 421, and the switching valve 30 is provided with a water guide groove 34 and a water guide plate 35 at the bottom of the opening 421, the counterweight small float 43 is located at the bottom of the water guide plate 35, and the counterweight water inlet 432 is located at the top of the counterweight small float 43, and receives the flowing water of the water guide plate 35.

[0064] When the toilet is flushed, the pump 2 supplies water to the water inlet channel 13 .

[0065] In the initial stage of flushing, the toilet tank is full of water, the float 41 floats up, and the second lifting rod 314 is linked to open the pressure relief hole 313. The pressure relief hole 313 is connected to the water inlet channel 13. The water stop rubber pad 312 opens the water outlet end of the water inlet channel 13 under the action of water pressure. The first water channel 14 is in a water outlet state, and the plug 321 blocks the connecting hole under the action of the reset spring 322, and the second water channel 15 is in a water stop state.

[0066] When the water level in the toilet tank drops and the float 41 also drops, the float 41 links the second lifting rod 314 to block the pressure relief hole 313, and the water-stop rubber pad 312 closes the water outlet end of the water inlet channel 13 under the back pressure of the back pressure chamber 31. The first water channel 14 is in a water-stop state, and the plug 321 compresses the reset spring 322 under the action of water pressure and opens the connecting hole. The second water channel 15 is connected to the water inlet channel 13, and water flows out.

[0067] When the toilet flushing is finished, the pump 2 stops pumping water, and since the float 41 is in a descending state, the first lifting rod 24 controls the water inlet valve 20 to allow water to enter, so that the water level in the water tank is restored, and the toilet valve body 1 and its float assembly 40 are restored to the state before flushing.

[0068] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A float assembly for controlling the opening and closing of a water inlet valve of a toilet tank, characterized in that: Including float cup, float and small weighted float; The float cup is installed in the toilet water tank, with a water inlet opening at the top and a drain hole at the bottom. A one-way valve with buoyancy is arranged at the drain hole. The one-way valve floats up and closes the drain hole under the action of the water in the toilet water tank, and opens the drain hole when the one-way valve falls. The float is installed in the float cup and floats up or down following the water level in the float cup; The small counterweight float and the one-way valve are assembled together, and the small counterweight float is located above the one-way valve; the small counterweight float is provided with a counterweight drain hole and a counterweight water inlet, and the counterweight drain hole is located at the lower part of the small counterweight float. The small counterweight float introduces counterweight water through the counterweight water inlet and discharges the counterweight water through the counterweight drain hole.

2. A buoy assembly according to claim 1, characterized in that: When the one-way valve and the small counterweight float are immersed in the water of the toilet tank, the sum of the buoyancy forces on the one-way valve and the small counterweight float is greater than the sum of their own weights; When part of the small counterweight float is exposed above the water surface of the toilet tank, the sum of the buoyancy forces on the one-way valve and the small counterweight float is less than the sum of the deadweights of the one-way valve, the small counterweight float and the part of the counterweight water above the water surface of the tank; When the one-way valve is immersed in the water of the toilet tank, the buoyancy applied to the one-way valve is greater than the sum of the deadweights of the one-way valve and the small counterweight float.

3. A buoy assembly according to claim 1, characterized in that: The small counterweight buoy is assembled with the one-way valve in a height-adjustable manner.

4. A buoy assembly according to claim 3, characterized in that: The one-way valve comprises an adjusting rod arranged in a vertical direction, and the small counterweight buoy is height-adjustably connected to the adjusting rod.

5. A buoy assembly according to claim 4, characterized in that: The side of the float cup is provided with a pair of mounting ears arranged up and down, and the mounting ears are provided with a C-shaped guide opening with the axial direction in the vertical direction. The two ends of the adjustment rod are respectively movably installed in the two mounting ears up and down through the C-shaped guide opening.

6. A valve body for a toilet, characterized in that: It comprises an inlet valve and a float assembly as claimed in any one of claims 1 to 5, wherein the inlet valve is provided with a first lifting rod for controlling water inlet or water stop, the float of the float assembly is connected to the first lifting rod, and when the float falls, the first lifting rod controls the inlet valve to let water in, and when the float rises, the first lifting rod controls the inlet valve to stop water.

7. A toilet valve body according to claim 6, characterized in that: It also includes a switching valve, which is provided with a water inlet channel, a first water channel, and a second water channel. The switching valve is provided with a second lifting rod for controlling the water inlet channel to switch and connect the first water channel and the second water channel. The float of the float assembly is connected to the second lifting rod, and when the float falls, the second lifting rod controls the switching valve to switch to the water inlet channel to connect the second water channel. When the float rises, the second lifting rod controls the switching valve to switch to the water inlet channel to connect the first water channel.

8. A toilet valve body according to claim 7, characterized in that: The switching valve is provided with a back pressure chamber with a pressure relief hole and a water-stopping rubber pad, and the switching valve also includes a plug and a return spring; the water-stopping rubber pad is located between the pressure relief hole and the water outlet end of the water inlet channel, and the water-stopping rubber pad is also located between the water outlet end of the water inlet channel and the water inlet end of the first water channel; the water inlet channel and the second water channel are provided with a connecting hole, the plug and the return spring are arranged at one end of the water inlet channel connected to the second water channel, and the plug blocks the connecting hole under the action of the return spring; the water inlet channel is connected to the outlet of the pump used to suck water in the toilet tank. The second lifting rod is swung and installed close to the pressure relief hole, and when the second lifting rod blocks the pressure relief hole, the water-stopping rubber pad blocks the water outlet end of the water inlet channel, and the first water channel is in a water-stop state. The plug compresses the reset spring under the action of water pressure and opens the connecting hole, and the second water channel is connected to the water inlet channel, and water flows out. When the second lifting rod opens the pressure relief hole, the water-stopping rubber pad opens the water outlet end of the water inlet channel, and the first water channel is in a water-out state. The plug is reset and blocks the connecting hole, and the second water channel is in a water-stop state.

9. A toilet valve body according to claim 8, characterized in that: The small counterweight buoy receives the water discharged from the pressure relief hole.

10. A toilet valve body according to claim 9, characterized in that: The pressure relief hole is located at the top of the switching valve, and a water guide enclosure surrounding the pressure relief hole is provided at the top of the switching valve, the water guide enclosure is provided with an opening, and the switching valve is provided with a water guide groove and a water guide plate at the bottom of the opening, the small counterweight float is located at the bottom of the water guide plate, and the counterweight water inlet is located at the top of the small counterweight float, and receives the flowing water of the water guide plate.

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