Stable drain valve and toilet stool thereof

Abstract

The invention discloses a stable drain valve and a toilet stool with the same. The drain valve comprises a water passing opening and a guide structure. The full-drainage assembly comprises a valve element pipe, a floating barrel and a water stopping piece, the valve element pipe can be controlled to move in the axial direction of the inner cavity of the valve body, the water stopping piece is arranged at the bottom end of the valve element pipe, and the water stopping piece can move along with the valve element pipe to be separated from the sealing fit with the water passing opening; the semi-drainage assembly comprises a balance weight part and a swing part, and the swing part is in hooked connection with or disengaged from the valve element pipe in a swing mode under the action of the guide structure in the movement process of the balance weight part. The swing part comprises a first swing rod and a second swing rod which are hinged to each other, the first swing rod and the second swing rod are hinged to the balance weight part, and when one of the first swing rod and the second swing rod is disengaged from being hinged, the other one of the first swing rod and the second swing rod is in a tight holding state and prevents the swing part from falling off. And the problem of failure of the semi-drainage state caused by falling of the swinging piece is avoided.

Description

Technical Field

[0001] This application generally relates to the technical field of bathroom fixtures, and more specifically, to a drain valve with good stability and a toilet. Background Technology

[0002] The existing wall-mounted dual-flush drain valves require disassembly and reassembly of the wall after installation, resulting in a large amount of maintenance work. Therefore, improving the service life and stability of the wall-mounted water tank can bring consumers a completely different consumer experience.

[0003] In dual-stage drain valves, the half-drainage state is often differentiated from the full-drainage state by reducing the drainage time through a counterweight. However, in existing technology, the counterweight is connected to the valve core tube via a swinging component. Due to the continuous swinging motion of the swinging component, it is frequently observed that the swinging component may detach, causing the half-drainage state to fail. Summary of the Invention

[0004] A primary objective of this application is to provide a product with excellent stability for a dual-stage drain valve by improving the swing element from the existing single-stage swing arm to a two-stage swing arm, and by using a special setting of the two-stage swing arm to achieve a barrier that allows the two pole swing arms to disengage from each other through hinges. This, in turn, overcomes at least to some extent one or more problems caused by the limitations and defects of related technologies.

[0005] To achieve the above-mentioned objectives, this application adopts the following technical solution: According to one aspect of this application, a drain valve is provided for controlled discharge of flush water into a toilet, comprising: Water inlet and guide structure; The full-discharge assembly includes a valve core tube, a float, and a water stop. The valve core tube can be controlled to move along the axial direction of the valve body cavity. The water stop is located at the bottom end of the valve core tube and can disengage from the sealing fit with the water outlet as the valve core tube moves. The float is located on the valve core tube and above the water stop. The float is located in the first water storage cavity of the valve body. The half-discharge assembly includes a counterweight and a swinging component. The counterweight is disposed on the valve core tube and located in the second water storage chamber of the valve body. The swinging component is oscillatingly connected to the counterweight. The counterweight can be controlled to move along the axial direction of the inner cavity of the valve body and synchronously move the valve core tube in the same direction. During the movement of the counterweight, the swinging component can swing and engage or disengage with the valve core tube under the action of the guide structure. The swinging component includes a first swing arm and a second swing arm that are hinged to each other. The first swing arm and the second swing arm are respectively hinged to the counterweight. When one of the first swing arm and the second swing arm is disengaged, the other swing arm is in a holding state and prevents the swinging component from falling off. The drain valve includes a full drain state and a half drain state with different discharge volumes. In the full drain state, the valve core tube is moved by a starter, and in the half drain state, the counterweight is moved by a starter. When the half-drainage state is activated, the counterweight moves in conjunction with the full-drainage assembly to start drainage, and the swinging component moves together with the counterweight. The guide structure guides the swinging component to swing and connect with the valve core tube, so that the valve core tube increases the load-bearing capacity of the counterweight. After the drainage is completed, the full-drainage assembly and the counterweight reset, and the guide structure guides the swinging component to reset synchronously.

[0006] According to one embodiment of this application, the guide structure includes a first inclined surface and a second inclined surface. The first inclined surface is used to cooperate with the top end of the first rocker arm and guide the top end of the first rocker arm toward the valve core tube. The second inclined surface is used to cooperate with the bottom end of the second rocker arm and guide the second rocker arm to disengage from the valve core tube in conjunction with the top end of the first rocker arm.

[0007] According to one embodiment of this application, both the first inclined surface and the second inclined surface are inclined from low to high in a direction that gradually approaches the valve core tube.

[0008] According to one embodiment of this application, the counterweight has an opening in the radial direction, and the swing member is disposed on one of the sidewalls on both sides of the opening.

[0009] According to one embodiment of this application, the hinge points of the first swing arm and the second swing arm on the side wall are respectively located at different heights and on different axes.

[0010] According to one embodiment of this application, the top end of the first rocker arm has a protrusion extending radially along its own top surface, and the valve core tube is correspondingly provided with a boss extending outwardly along its own radial direction for cooperating with the protrusion.

[0011] According to one embodiment of this application, the top of the counterweight is provided with a first cavity for holding water for counterweighting.

[0012] According to one embodiment of this application, the drain valve includes a full-drain pull rod and a half-drain pull rod. The full-drain pull rod cooperates with the valve core tube, and the half-drain pull rod cooperates with the counterweight. The full-drain pull rod and the half-drain pull rod are respectively cooperated with a starting component.

[0013] According to one embodiment of this application, the first water storage chamber and the second water storage chamber are separated from each other, and the first water storage chamber and the second water storage chamber are respectively provided with a drainage adjustment mechanism on their respective side walls.

[0014] According to one aspect of this application, a toilet is provided, comprising: The toilet body includes a toilet bowl and a water inlet connected to the toilet bowl; The water tank has a water tank drain outlet that is connected to the water inlet of the toilet. And the aforementioned drain valve, which is installed inside the water tank and is used to control the opening and closing of the drain outlet of the water tank.

[0015] In this application, by adopting a two-stage lever structure for the swing component, if either the first or second swing arm tends to detach, they will mutually restrict and prevent it from detaching, thereby ensuring a stable fit between the swing component and the counterweight, and avoiding the problem of failure of the half-drainage state due to the detachment of the swing component.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The above and other features and advantages of this application will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a drain valve according to an exemplary embodiment; Figure 2 This is an exploded view of a drain valve according to an exemplary embodiment; Figure 3 This is a schematic diagram of the structure of a drain valve according to an exemplary embodiment; Figure 4 yes Figure 3 A cross-sectional view along the AA direction with the drain valve in the closed position; Figure 5 yes Figure 3 A cross-sectional view of the structure along the AA direction with the drain valve in full drainage mode; Figure 6 yes Figure 3 A cross-sectional view of the structure along the AA direction with the drain valve in a half-drainage state.

[0019] The reference numerals in the attached figures are explained as follows: Drain valve; 11. Valve body; 12. Adjustment structure; 13. Valve seat; 14. Water inlet; 15. Water passage hole; 16. Valve shell; 17. Valve cover; 18. Through hole; 19. First water storage chamber; 10. Second water storage chamber; 11. First inclined surface; 12. Second inclined surface; 13. Divider; Full drain assembly; 21, water stop component; 22, valve core tube; 221, retaining ring; 222, boss; 23, float; 24, full drain tie rod; 30, Half-row assembly; 31, Counterweight; 32, Swing component; 33, Half-row tie rod; 321, First swing rod; 322, Second swing rod. Detailed Implementation

[0020] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0021] In the bathroom industry, the drain valve 100 is typically installed in the toilet tank. The tank has an actuator or a tank-linked actuator that controls the opening and closing of the drain valve 100, thereby controlling the opening and closing of the tank's drain outlet. The actuator can be a mechanical button, a pneumatic button, or other form of control structure.

[0022] See Figures 1 to 6 The dual-drain valve 100 includes a valve body 10, a full-drain assembly 20, and a half-drain assembly 30, which are assembled on the valve body 10. The full-drain assembly 20 and the half-drain assembly 30 are activated to either full-drain or half-drain states by an activation operation of an actuator.

[0023] In some embodiments, the valve body 10 includes a valve shell 15 and a valve seat 12. The valve shell 15 can be detachably assembled onto the valve seat 12. The top of the valve seat 12 and the bottom of the valve shell 15 can be provided with corresponding snap-fit ​​structures to achieve detachable assembly. The bottom of the valve seat 12 can be assembled onto the drain port of the water tank through a threaded structure or other forms of structure. A water passage 13 is provided on the bottom of the valve seat 12, and a water passage hole 14 is provided on the side wall of the valve seat 12. When the water stop 21 is disengaged from the sealing fit with the water passage 12, water can enter the valve seat 12 through the water passage hole 14 and be discharged from the water passage 12. The valve shell 15 can be a detachable structure. For example, the first water storage chamber 151 and the second water storage chamber 152 are respectively provided in two detachable structures, which can be assembled to form a valve shell 15. A detachable valve cover 16 is provided on the top of the valve shell 15 to facilitate the installation of the full-drain assembly 20 and the half-drain assembly 30.

[0024] The valve housing 15 has an axially oriented mounting cavity in its central part for assembling the valve core tube 22. A partition 155 is located in the middle of the valve housing 15, dividing it into two independently configured water storage chambers: a first water storage chamber 151 and a second water storage chamber 152. Drainage adjustment structures 11 are respectively provided on the side walls of the first and second water storage chambers 151 and 152. Specifically, the adjustment structure 11 includes a through hole 17 on the side wall and an adjusting plate assembled on the side wall. Adjusting the adjusting plate up and down along the side wall changes the size of the through hole 17, thereby changing the drainage rate of the water in the first and second water storage chambers 151 and 152, changing the duration of the water stop 21's disengagement from the sealing fit, and thus changing the drainage volume.

[0025] In some embodiments, the full-drain assembly 20 includes a full-drain pull rod 24, a valve core tube 22, a float 23, and a water-stopping element 21. The valve core tube 22 is assembled in the mounting cavity of the valve housing 15 and can be controlled to move along the axial direction of the mounting cavity. The full-drain pull rod 24 is assembled on the top of the valve core tube 22 and can be connected to the actuating element. The water-stopping element 21 is located at the bottom end of the valve core tube 22 and can move with the valve core tube 22. The float 23 is located on the valve core tube 22 and above the water-stopping element 21, and is located in the first water storage cavity 151 of the valve body 10. The water-stopping element 21 can be composed of several sealing gaskets and can seal against the valve seat 12 at the water inlet 13 to close the water flow at the water inlet 13. The valve core tube 22 can be a hollow structure used to connect the water supply pipe. After flushing, a certain amount of water can be added to the toilet bowl through the water supply pipe during the water inlet valve to form a water seal effect and prevent the backflow of sewer odors. The float 23 can be a common float 23 structure in the prior art, which is fixedly assembled on the valve core tube 22, and the two basically maintain synchronous movement.

[0026] In some embodiments, the half-row assembly 30 includes a half-row pull rod 33, a counterweight 31, and a swing member 32. The counterweight 31 is mounted on the valve core tube 22 and located within the second water storage chamber 152 of the valve body 10. The half-row pull rod 33 can be detachably assembled with the counterweight 31 and can extend beyond the valve housing 15 to connect with the actuating component. The swing member 32 is oscillatingly connected to the counterweight 31. The counterweight 31 can be controlled to move axially along the inner cavity of the valve body 10 and synchronously move the valve core tube 22 in the same direction. During the movement of the counterweight 31, the swing member 32 can swing and engage or disengage with the valve core tube 22 under the action of the guide structure. A retaining ring 221 can be provided above the counterweight 31 on the valve core tube 22. When the counterweight 31 moves upward, it overlaps and abuts against the retaining ring 221, thereby causing the counterweight 31 to move in conjunction with the valve core tube 22.

[0027] The drain valve 100 includes a full drain state and a half drain state with different discharge volumes. In the full drain state, the valve core tube 22 is moved by the starter, and in the half drain state, the counterweight 31 is moved by the starter.

[0028] See Figure 4 In the closed state of drain valve 100: the water-stopping element 21 covers and seals the valve inlet 13, meaning the water-stopping element 21 and valve seat 12 are in a sealed fit. The normal operating water level of drain valve 100 is located below the top opening of valve core tube 22, with a certain distance between the water level line and the top opening of valve core tube 22, and the water level line is above the top of valve body 10. Drain valve 100 is essentially submerged in water, and the interior of valve housing 15 is also filled with water. For example, the drainage adjustment mechanism on the side wall of valve housing 15 has a through hole 17, there is a gap between float 23 and valve housing 15, and there is also a gap between counterweight 31 and valve housing 15, allowing water in the tank to enter the first water storage chamber 151 and the second water storage chamber 152. Under water pressure, the water-stopping element 21 maintains a stable seal with valve seat 12. For even better sealing, a flange can be raised on valve seat 12. The water-stopping element 21 can also be configured with multiple layers of seals along the longitudinal direction.

[0029] See Figure 5 The process of achieving full drainage is as follows: Pulling the full drainage lever 24 upwards drives the entire full drainage assembly 20 to move upwards along the axial direction of the valve core tube 22. The water stop 21 disengages from the sealing fit with the water outlet 13, and water flows from the water inlet into the valve seat 12, and then flows out of the water tank from the water outlet 13 into the toilet bowl. At this time, since the counterweight 31 does not move upwards, the half drainage assembly 30 remains in its initial state, the swinging part 32 is disengaged from the valve core tube 22, and the counterweight 31 does not press against the valve core tube 22. After releasing the starting part, the gravity of the full drainage assembly 20 will drive it to fall. As the water level in the tank drops, the volume of the float 23 submerged in water decreases, and the buoyancy of the float 23 gradually decreases. When the buoyancy is less than its own weight, the full drainage assembly 20 re-seals the water outlet 13.

[0030] See Figure 6The process of achieving partial drainage is as follows: Pulling the partial drainage lever 33 upwards causes the counterweight 31 to move upwards as well. The counterweight 31, in conjunction with the full drainage assembly 20, moves and opens the drainage system. The water stop 21 disengages from its sealing fit with the water outlet 13, allowing water to flow out of the tank and into the toilet bowl. Simultaneously, the swinging component 32 moves with the counterweight 31. The guide structure guides the swinging component 32 to swing and engage with the valve core tube 22, increasing the load-bearing capacity of the counterweight 31 on the valve core tube 22. After drainage, the full drainage assembly 20 and the counterweight 31 return to their original positions, and the guide structure guides the swinging component 32 to return to its original position synchronously. Because the weight of the counterweight 31 acts on the valve core tube 22, the descent speed of the full drainage assembly 20 is faster than when there is no counterweight, resulting in a smaller total amount of water flowing out of the tank, thus achieving a different drainage method than full drainage.

[0031] In a specific embodiment, the counterweight 31 has an opening in the radial direction, and the swing member 32 is provided on one of the side walls on both sides of the opening. The top of the counterweight 31 is provided with a first cavity for holding water for counterweighting. The counterweight 31 may only have a counterweight cavity at the top, or it may also have a buoyancy cavity at the bottom of the counterweight 31. It can be configured according to the buoyancy and counterweight requirements of the counterweight 31 during use.

[0032] In a specific embodiment, the swing member 32 includes a first swing rod 321 and a second swing rod 322 hinged to each other. The first swing rod 321 and the second swing rod 322 are respectively hinged to the counterweight 31. When one of the first swing rod 321 and the second swing rod 322 is disengaged, the other is in a holding state and prevents the swing member 32 from falling off. The hinge points of the first swing rod 321 and the second swing rod 322 on the side wall are respectively located at different heights and on different axes. The top end of the first swing rod 321 has a protrusion extending radially along its own top surface. The valve core tube 22 is correspondingly provided with a boss 222 extending outward along its own radial direction for cooperating with the protrusion. The bottom of the second swing rod 322 may be provided with a roller that cooperates with the second inclined surface 154, so that the second inclined surface 154 pushes the second swing rod 322 to move more smoothly.

[0033] The guiding structure includes a first inclined surface 153 and a second inclined surface 154. The first inclined surface 153 is disposed on the inner wall of the valve housing 15 and located in the upper middle part of the second water storage cavity 152. The second inclined surface 154 is disposed on the corresponding outer wall of the mounting cavity and located at the bottom of the second water storage cavity 152. Both the first inclined surface 153 and the second inclined surface 154 are inclined from low to high in a direction gradually approaching the valve core tube 22, and their inclination angles can be kept consistent. The first inclined surface 153 is used to cooperate with the top end of the first rocker arm 321 and guide the top end of the first rocker arm 321 toward the valve core tube 22. The second inclined surface 154 is used to cooperate with the bottom end of the second rocker arm 322 and guide the second rocker arm 322 to disengage from the top end of the first rocker arm 321 in conjunction with the valve core tube 22.

[0034] In another embodiment, a toilet includes a toilet body, a water tank, and a drain valve 100. The toilet body has a bowl and a water inlet communicating with the bowl, the water tank has a drain outlet communicating with the water inlet, and the drain valve 100 is installed inside the water tank and is used to control the opening and closing of the drain outlet.

[0035] In the embodiments of this application, the terms "fitting," "connection," and other such terms should be interpreted broadly. For example, "connection" can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0036] In the description of this specification, the terms "some embodiments," "specific embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the claims. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The above are merely preferred embodiments of the application examples and are not intended to limit the application examples. For those skilled in the art, the application examples can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the application examples should be included within the protection scope of the application examples.

Claims

1. A stable drain valve for controlled discharge of flush water into a toilet, characterized in that, include: The valve body is equipped with a water inlet and a guide structure; The full-discharge assembly includes a valve core tube, a float, and a water stop. The valve core tube can be controlled to move along the axial direction of the valve body cavity. The water stop is located at the bottom end of the valve core tube and can disengage from the sealing fit with the water outlet as the valve core tube moves. The float is located on the valve core tube and above the water stop. The float is located in the first water storage cavity of the valve body. The half-discharge assembly includes a counterweight and a swinging component. The counterweight is disposed on the valve core tube and located in the second water storage chamber of the valve body. The swinging component is oscillatingly connected to the counterweight. The counterweight can be controlled to move along the axial direction of the inner cavity of the valve body and synchronously move the valve core tube in the same direction. During the movement of the counterweight, the swinging component can swing and engage or disengage with the valve core tube under the action of the guide structure. The swinging component includes a first swing arm and a second swing arm that are hinged to each other. The first swing arm and the second swing arm are respectively hinged to the counterweight. When one of the first swing arm and the second swing arm is disengaged, the other swing arm is in a holding state and prevents the swinging component from falling off. The drain valve includes a full drain state and a half drain state with different discharge volumes. In the full drain state, the valve core tube is moved by a starter, and in the half drain state, the counterweight is moved by a starter. When the half-drainage state is activated, the counterweight moves in conjunction with the full-drainage assembly to start drainage, and the swinging component moves together with the counterweight. The guide structure guides the swinging component to swing and connect with the valve core tube, so that the valve core tube increases the load-bearing capacity of the counterweight. After the drainage is completed, the full-drainage assembly and the counterweight reset, and the guide structure guides the swinging component to reset synchronously.

2. The drain valve as described in claim 1, characterized in that, The guide structure includes a first inclined surface and a second inclined surface. The first inclined surface is used to cooperate with the top end of the first rocker arm and guide the top end of the first rocker arm toward the valve core tube. The second inclined surface is used to cooperate with the bottom end of the second rocker arm and guide the second rocker arm to disengage from the top end of the first rocker arm in conjunction with the valve core tube.

3. The drain valve as described in claim 2, characterized in that, Both the first and second inclined surfaces slope upwards towards the valve core tube.

4. The drain valve as described in claim 2, characterized in that, The counterweight has an opening in the radial direction, and the swinging member is disposed on one of the sidewalls on both sides of the opening.

5. The drain valve as described in claim 3, characterized in that, The hinge points of the first and second pendulum rods on the side wall are respectively located at different heights and on different axes.

6. The drain valve as described in claim 4, characterized in that, The top end of the first rocker arm has a protrusion that extends radially along its own top surface, and the valve core tube is correspondingly provided with a boss that extends outward along its own radial direction for cooperating with the protrusion.

7. The drain valve as described in claim 1, characterized in that, The top of the counterweight is provided with a first cavity for holding water as a counterweight.

8. The drain valve as described in claim 1, characterized in that, The drain valve includes a full-drain lever and a half-drain lever. The full-drain lever is engaged with the valve core tube, and the half-drain lever is engaged with the counterweight. The full-drain lever and the half-drain lever are each engaged with one of the starting components.

9. The drain valve as described in claim 1, characterized in that, The first water storage chamber and the second water storage chamber are separated from each other, and the first water storage chamber and the second water storage chamber are respectively provided with drainage adjustment mechanisms on their respective side walls.

10. A toilet, characterized in that, include: The toilet body includes a toilet bowl and a water inlet connected to the toilet bowl; The water tank has a water tank drain outlet that is connected to the water inlet of the toilet. And the drain valve according to any one of claims 1 to 1, wherein the drain valve is installed inside the water tank and the drain valve is used to control the opening and closing of the drain outlet of the water tank.

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