Pressurized drainage device for toilet, water tank assembly and toilet

Abstract

A pressurized drainage device for a toilet, comprising a piston cylinder, a piston member, and a locking member. The piston cylinder is movably disposed in the water storage chamber of a water tank. The piston cylinder in a closed position can close the drain outlet of the water tank, and the piston cylinder is also provided with a water inlet. The piston member is movably disposed in the piston cylinder and can be positioned in a pressurized initial position. The piston member comprises a piston end extending into the interior of the piston cylinder, and a pressurized end disposed opposite the piston end. A pressurized space is formed between the piston end and the piston cylinder, the pressurized space being connected to the water inlet. The piston member is provided with a drain outlet so that the pressurized end is located in the drain chamber. The locking member is disposed in the water tank and can be moved to a locking position. The locking member in the locking position can prevent the piston member in the pressurized initial position from moving toward the side where the pressurized end is located. The piston cylinder in the trigger position can drive the locking member out of the locking position. The above-mentioned pressurized drainage device can improve the flushing effect and is stable and reliable. It also relates to a water tank assembly and a toilet.

Description

Technical Field

[0001] The present application relates to a drainage device, in particular to a pressure-boosting drainage device for a toilet. The present application also relates to a water tank and a toilet having the pressure-boosting drainage device. Background Art

[0002] Existing toilet flushing systems require a pressurized drainage device to increase the force of the water tank's drainage. When designing this device, it's important to consider whether the device's pressurized drainage action can coordinate with the tank's own drainage action to ensure a positive flushing effect. Furthermore, the complexity and reliability of the tank's overall structure must be considered.

[0003] The pressurized drainage device of the existing toilet cannot meet the above technical requirements. Summary of the Invention

[0004] In response to the above problems, the present application discloses a pressurized drainage device for a toilet to overcome the above problems or at least partially solve the above problems.

[0005] The present application also discloses a water tank assembly having the above-mentioned pressurized drainage device.

[0006] The application also discloses a toilet having the water tank assembly.

[0007] In order to achieve the above objectives, this application adopts the following technical solutions:

[0008] The present application discloses a pressurized drainage device for a toilet, which can be assembled to a water tank of the toilet. The water tank has a water storage chamber and a drainage chamber, and the water storage chamber is connected to the drainage chamber through a drainage port. The pressurized drainage device includes a piston cylinder, a piston member, and a locking member. The piston cylinder can be movably arranged in the water storage chamber of the water tank and can be moved to a closed position and a trigger position. The piston cylinder in the closed position can close the drainage port, and the piston cylinder is also provided with a water inlet. The piston member can be movably arranged in the piston cylinder and can be located in a pressurized initial position. The piston member includes a piston end extending into the interior of the piston cylinder, and a pressurized end arranged opposite to the piston end. A pressurized space is formed between the piston end and the piston cylinder, and the pressurized space is connected to the water inlet. The piston member is passed through the drainage port so that the pressurized end is located in the drainage chamber of the water tank. The locking member is arranged in the water tank and can be moved to a locking position. The locking member in the locking position can prevent the piston member in the initial boosting position from moving toward the side where the boosting end is located. The piston cylinder in the triggering position can drive the locking member out of the locking position.

[0009] The toilet pressure-boosting drainage device with the above structure ensures that flushing has already begun before the piston reaches its trigger position. After flushing begins, the locking member disengages from its locked position, and the internal pressure of the pressurizing space causes the piston to move toward its pressurizing end. This end then boosts the pressure of the drainage, improving the flushing effect and providing a controllable and stable pressurizing action. Furthermore, the toilet pressure-boosting drainage device itself boasts a simple and ingenious structure, eliminating the need for an additional power unit within the water tank to achieve the pressurization action.

[0010] In an exemplary embodiment of the pressurized drainage device for a toilet, the piston cylinder can return to the closed position under the action of gravity. The above structure can make the piston cylinder return automatically.

[0011] In an exemplary embodiment of a pressurized drainage device for a toilet, a float is provided at the piston end of the piston member. Under the action of buoyancy, the float can drive the piston member to move toward the side where the piston end is located. The above structure can make the piston member automatically return to its original position.

[0012] In an exemplary embodiment of the pressurized drainage device of a toilet, the locking member is rotatably disposed on the water tank, and the locking member rotates back to a locking position under the action of gravity.

[0013] In an exemplary embodiment of a pressurized drainage device for a toilet, the locking member includes a locking portion. A pressurized plate is provided at the pressurized end of the piston member, and a snap-fit ​​member corresponding to the locking portion is provided on the side of the pressurized plate facing the piston end. The locking portion in the locking position can abut against the snap-fit ​​member in the initial pressurized position. The snap-fit ​​member returning to the initial pressurized position can push the locking portion out of the locking position until the snap-fit ​​member reaches the initial pressurized position. The above structure can help the locking member and the piston member return to their pre-pressurized position.

[0014] In an exemplary embodiment of the pressurized drainage device for a toilet, the locking member further comprises a linkage portion, the piston cylinder is provided with a trigger member corresponding to the linkage portion, and the trigger member in the trigger position can pull the locking member through the linkage portion to disengage the locking member from the locked position.

[0015] In one exemplary embodiment of a pressurized drainage device for a toilet, a trigger member is rotatably mounted on the piston cylinder and, under the action of gravity, can return to a pulled position where it contacts and pulls the locking member. As the piston cylinder returns to the closed position, a linkage located in the locked position pushes the trigger member away from its pulled position, allowing the piston cylinder to return to the closed position. This structure helps the locking member and piston cylinder return to their pre-pressurization position.

[0016] The present application also provides a toilet water tank assembly comprising a water tank and the aforementioned pressurized drainage device. The water tank has a water storage chamber and a drainage chamber, with the water storage chamber connected to the drainage chamber via a drainage port. The pressurized drainage device includes a piston cylinder movably disposed within the water storage chamber. When the piston cylinder is in a closed position, it can seal the drainage port. A piston member is disposed through the drainage port, positioning the pressurized end within the drainage chamber. A locking member is disposed within the water tank.

[0017] The water tank assembly of the above structure can improve the flushing effect and make the entire pressurizing action controllable and stable, without the need to add an additional power device in the water tank to complete the pressurizing action.

[0018] In one exemplary embodiment of the water tank assembly, the water tank includes a water tank body and a drain cylinder. The water tank body defines a water storage cavity and is provided with a drain outlet. The drain cylinder can be assembled to the water tank body and defines a drain cavity. This modularizes the overall structure and reduces the difficulty of production and assembly.

[0019] The present application also provides a toilet, which includes the above-mentioned water tank assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0021] Figure 1 A schematic diagram of a three-dimensional exploded structure used to illustrate an exemplary embodiment of a pressurized drainage device for a toilet.

[0022] Figure 2 A planar assembly diagram for illustrating an exemplary embodiment of a pressurized drainage device for a toilet.

[0023] Figure 3 yes Figure 2 The schematic diagram of the planar structure of the toilet after the booster drainage device is assembled is shown.

[0024] Figures 4 to 7 A schematic diagram illustrating the working process of a toilet's pressurized drainage device during drainage.

[0025] Figures 8 to 11 A schematic diagram illustrating the reset process of a toilet's pressurized drainage device after drainage.

[0026] Description of labels:

[0027] 10. Pressurized drainage device

[0028] 12 piston cylinder

[0029] 122 water inlet

[0030] 124 Pressurized Space

[0031] 126 trigger

[0032] 14 piston parts

[0033] 142 piston end

[0034] 143 floating body

[0035] 144 boost end

[0036] 145 Booster Plate

[0037] 146 snap-fit ​​parts

[0038] 16 Locking parts

[0039] 162 Locking part

[0040] 164 Joint Department

[0041] 50 water tank

[0042] 51 lower box

[0043] 52 water storage chamber

[0044] 53 upper box

[0045] 54 Drain

[0046] 55 Drainage Canister

[0047] 552 flushing port

[0048] 56 Drainage cavity DETAILED DESCRIPTION

[0049] To make the purpose, technical solutions, and advantages of this application more clear, the following will provide a clear and complete description of the technical solutions of this application in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0050] In this document, “illustrative” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “illustrative” should not be interpreted as a more preferred or more advantageous technical solution.

[0051] To simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled.

[0052] Herein, “horizontal”, “vertical”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in production or use.

[0053] The following describes in detail the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0054] Figure 1 A schematic diagram of a three-dimensional exploded structure of a schematic embodiment of a toilet pressurized drainage device. In order to more clearly express the toilet pressurized drainage device, Figure 2 and Figure 3 A simplified planar structural diagram schematically illustrates the assembly relationship of various structures within the pressurized drainage device of a toilet.

[0055] See also Figure 1 The pressurized drainage device 10 of the toilet can be assembled to the water tank 50 of the toilet. The water tank is shown as a structure with dotted lines in the figure. In this embodiment, the water tank includes a water tank body and a drainage cylinder 55. The water tank body is composed of a lower box body 51 and an upper box body 53. The drainage cylinder 55 is assembled to the bottom of the lower box body 51 along the assembly relationship marked with dotted lines in the figure. The water tank body composed of the lower box body 51 and the upper box body 53 can form a water storage chamber 52, and the drainage cylinder 55 can form a drainage chamber 56. The water storage chamber 52 and the drainage chamber 56 are connected through a drainage port 54. For the structural relationship between the water storage chamber 52, the drainage chamber 56 and the drainage port 54, please refer to Figure 3 , Figure 3 In order to express the result relationship more clearly, the water tank body is omitted and only the water storage chamber 52 formed in the water tank body is shown.

[0056] The drain cylinder 55 is also provided with a flush port 552. After the liquid in the water storage chamber 52 flows into the drain chamber 54 through the drain port 54, it will be discharged from the flush port 552 into the pelvic cavity of the toilet to complete the final flushing action. The pressurized drainage device 10 can increase the drainage impact force of the flushing action.

[0057] like Figures 1 to 3As shown, the booster drainage device 10 of the toilet is the structure shown by the solid line in the figure, and includes a piston cylinder 12, a piston member 14, and a locking member 16. The piston cylinder 12 is disposed in the water storage chamber 52 of the water tank 50, and the piston member 14 is adapted to fit the piston cylinder 12, that is, the piston member 14 can be assembled to the piston cylinder and can extend into the drainage chamber 56 of the water tank 50 through the drainage port 54. The specific structure is as follows:

[0058] The piston cylinder 12 is movably disposed in the water storage chamber 52 of the water tank 50 and is capable of moving to a closed position and a trigger position within the water storage chamber 52. In the embodiment shown in the figure, the piston cylinder 12 is capable of moving in the height direction of the water tank 50. The closed position and the trigger position are respectively two positions in the height direction. The closed position can be seen in FIG. Figure 3 In the closed position, the piston cylinder 12 can close the drain port 54, so that the liquid in the water storage chamber 52 cannot flow into the drain chamber 56 through the drain port 54. The trigger position will be described later. The piston cylinder 12 is also provided with a water inlet hole 122.

[0059] The piston member 14 is movably disposed on the piston cylinder 12, that is, the piston member 14 can move relative to the piston cylinder 12 along the extension direction of the piston cylinder 12. The piston member 14 can be located at an initial pressure boosting position, which can be seen in FIG. Figure 3 The position of the middle piston 14, in which the piston 14 has not yet started the pressurizing action, will be described in detail later.

[0060] The piston member 14 includes a piston end 142 and a pressurizing end 144 disposed opposite to the piston end 142 .

[0061] The piston end 142 of the piston member 14 can extend into the interior of the piston cylinder 12, and a pressurized space 124 is formed between the piston end 142 and the piston cylinder 12. Figure 3 The boosting space 124 is connected to the water inlet 122 of the piston cylinder 12. It can be imagined that injecting liquid into the boosting space 124 through the water inlet 122 will increase the pressure in the boosting space 124, and this pressure will provide power for the relative movement between the piston member 14 and the piston cylinder 12.

[0062] Those skilled in the art will understand that the pressurized space 124 formed here by the piston end 142 of the piston member 14 and the piston cylinder 12 does not require a sealed connection relationship between the piston end 142 of the piston member 14 and the piston cylinder 12, that is, there may be a gap between the piston end 142 of the piston member 14 and the piston cylinder 12 to allow liquid to pass through.

[0063] The piston member 14 is passed through the drain outlet 54 so that the boosting end 144 is located in the drain chamber of the water tank, that is, after assembly, the boosting end 144 can be located in the drain chamber 56 of the drain cylinder 55. When the piston member 14 moves relative to the piston cylinder 12, the boosting end 144 of the piston member can provide additional thrust to the liquid inside the drain chamber 56 to achieve a pressurization effect, which will be described in detail later.

[0064] The locking member 16 is disposed within the water tank 50 and is movable to a locked position and, of course, disengaged from the locked position. In the embodiment shown in the figure, the locking member 16 is disposed at the location where the water tank body has a drain outlet 54. Of course, the location of the locking member 16 is not limited to this, depending on the design requirements.

[0065] Figure 3 The locking member 16 is shown in its locking position. The locking member 16 in the locking position can prevent the piston member 14 in the initial boosting position from moving toward the boosting end 144. Based on the above positional matching relationship, the initial boosting position of the piston member 14 can also be understood as the position of the piston member 14 when it is blocked by the locking member 16 in the locking position.

[0066] The locking member 16 is disengaged from the above-mentioned locking position by the piston cylinder 12. Specifically, when the piston cylinder 12 moves to the trigger position in the water storage chamber 52, it will drive the locking member 16 to disengage from the locking position. At this time, the piston member 14 located at the initial boost position is allowed to move toward the side where the boost end 144 is located.

[0067] The working process of the pressurized drainage device 10 of the toilet will now be described by taking a drainage process as an example.

[0068] See first Figure 4 , Figure 4 It shows the positional relationship between the booster drainage device and the water tank 50 before the flushing starts, which is consistent with the previously mentioned Figure 3 The positional relationship shown is the same, except that both the water storage chamber 52 and the drainage chamber 56 contain liquid for flushing. To keep the picture simple, the liquid in the water storage chamber 52 is not shown in the figure.

[0069] exist Figure 4 In the positional relationship shown, the piston cylinder 12 is in the closed position of its closed drain outlet 54, preventing the liquid in the water storage chamber 52 from flowing to the drain chamber 56. At this time, all the liquid in the water tank 50 is in a static state, and the liquid pressure on both sides of the flushing port 552 is also kept consistent, and no liquid will flow out of the flushing port 552.

[0070] exist Figure 4In the position relationship shown, the locking member 16 is also in its locking position. In this position, the locking member 16 can prevent the piston member 14 shown in the figure from moving toward the side where the boost end 144 is located. However, in actual conditions, before flushing begins, the inside of the water tank 50 is relatively static, and the piston member 14 does not have the power to move toward the side where the boost end 144 is located. Therefore, the piston member 14 is not necessarily in contact with the locking member 16, and it is impossible to determine whether the piston member 14 is in its initial boost position.

[0071] exist Figure 4 In the embodiment shown, the locking member 16 is rotatably arranged on the water tank 50, and the locking member will rotate back to its locking position under the action of gravity, that is, in the absence of external force, the locking member 16 will automatically remain in its locking position. Figure 4 In the static condition shown, the latch member 16 is in its latched position.

[0072] exist Figure 4 Flushing begins in the state shown. First, water is injected into the boosting space 124 through the water inlet hole 122 of the piston cylinder 12 to increase the liquid pressure in the boosting space 124. The liquid pressure will simultaneously form a thrust acting on the piston cylinder 12 and the piston member 14 on opposite sides, that is, the piston cylinder 12 is subjected to an upward thrust in the figure, and the piston member 14 is subjected to a downward thrust in the figure.

[0073] After receiving the downward thrust shown in the figure, the piston member 14 should originally move toward the boost end 144 side. However, due to the blocking effect of the locking member 16 in the locking position, the piston member 14 can no longer move toward the boost end 144 side after contacting the locking member 16 and reaching the boost initial position.

[0074] In this embodiment, the locking member 16 has a locking portion 162, which can be seen at the same time. Figure 2 A boosting plate 145 is provided at the boosting end 144 of the piston member 14. A locking member 146 is provided on the side of the boosting plate 145 facing the piston end 142. The locking portion 162 in the locked position abuts against the locking member 146 in the initial boosting position, preventing the piston member 16 from moving toward the boosting end 144. Of course, depending on design requirements, the locking member 16 can also cooperate with other structures elsewhere on the piston member 14 to achieve the aforementioned coordination. Therefore, the corresponding structure of the piston member 14 is not limited to that shown in the figure. Furthermore, the location of the locking member 16 in the water tank 50 and its own structure are not limited to those shown in the figure.

[0075] When the piston 14 is locked by the locking portion 162 and cannot move toward the boosting end 144, the gradually increasing internal pressure in the boosting space 124 will drive the piston cylinder 12 to move upward. Figure 4 The closed position shown moves upward to Figure 5In the position shown, the piston cylinder 12 that has left the closed position no longer closes the drain port 54. The liquid in the water storage chamber 52 flows to the drain chamber 56 under the action of gravity, and at the same time causes the liquid in the drain chamber 56 to begin to flow out from the flushing port 552. At this time, the static state in the water tank 50 is broken and the flushing process begins.

[0076] Continue to add water into the pressurized space 124 through the water inlet hole 122. During the upward movement of the piston cylinder 12, it will gradually move to its trigger position. The piston cylinder 12 at the trigger position can drive the locking member 16 to disengage from its locking position. Figure 6 The state of the locking member 16 is that the locking member no longer prevents the piston member 14 from moving toward the side of its boosting end 144. Under the pressure in the boosting space 124, the boosting end 144 of the piston member 14 is driven to move downward in the drainage chamber 56, thereby boosting the pressure of the liquid flowing out of the flushing port 552 and improving the flushing effect. The maximum stroke of the boosting end 144 can be to move to the lowest end of the drainage chamber 56. Figure 7 As shown, in this position, the piston cylinder 12 has also moved upward to its highest position.

[0077] In the specific implementation manner, see Figure 2 The lock member 16 also has a linkage portion 164, and the piston cylinder 12 is provided with a trigger member 126. The trigger member 126 that follows the piston cylinder 12 to reach the trigger position can pull the lock member 16 to rotate through the linkage portion 164. Figure 6 As shown, the locking member 16 is disengaged from the locking position.

[0078] The pressurized drainage device 10 of the toilet with the above structure ensures that the flushing of the toilet has started before the piston cylinder 12 reaches its triggering position. Figure 5 After the flushing starts, the locking member 16 is disengaged from its locking position, and the internal pressure of the boosting space 124 is used to move the piston member 14 toward the side where the boosting end 144 is located, and the boosting end 144 is used to complete the boosting action of the drainage, thereby improving the flushing effect.

[0079] By controlling the distance between the closed and triggered positions of the piston cylinder 12 through structural design, the timing of the pressurization action after the flush is initiated can be precisely controlled, ensuring consistent flushing results with each flush. The maximum stroke of the piston 14 can also be controlled through structural design, thereby controlling the duration of the pressurization action in conjunction with the water inflow rate into the pressurization chamber 124. This makes the entire pressurization action more controllable and stable. Furthermore, the toilet's pressurization drainage device itself features a clever and simple structure, eliminating the need for an additional power unit within the water tank to achieve the pressurization action.

[0080] On the basis of the above structural design, the pressurized drainage device can also complete the return action by itself after completing the pressurization action.

[0081] For example, in one embodiment, the piston cylinder 12 can be made to return to its closed position by itself under the action of gravity. That is, in the height direction, the trigger position of the piston cylinder 12 is above the closed position. After completing a pressurization action, if no liquid is injected into the pressurization space, the piston cylinder 12 will return to its closed position by itself under the action of its own gravity, and the connection between the water storage chamber and the drainage chamber will be blocked again, so that the flushing action is automatically terminated. The automatic return process of the piston cylinder 12 under the action of gravity can be seen in FIG. Figures 7 to 9 The above design enables the automatic return of the piston cylinder 12 without the need for additional reset devices, making the overall structure simpler and more compact.

[0082] Of course, depending on the design requirements, the piston cylinder 12 can also be helped to return to its original position by other reset devices, such as a spring mechanism. Of course, in this case, it is not required that the trigger position of the piston cylinder 12 must be above the closed position in the height direction. For example, the entire structure can also be placed horizontally, and the movement direction of the piston cylinder 12 is not limited to the height direction.

[0083] In addition to the solution of returning the piston cylinder 12 to its original position by gravity, the piston member 14 can also be automatically returned. In one embodiment, a float 143 can be provided at the piston end 142 of the piston member 14. Under the action of buoyancy, the float 143 can drive the piston member 14 to move toward the side where the piston end 142 is located. Figures 9 to 11 After a pressurization cycle is complete, if no further liquid is added to the pressurization space, both the drainage chamber 56 and the pressurization space 124 are filled with liquid. The buoyancy of the float 143 causes the piston 14 to move upward as a whole, returning to at least its initial pressurization position. This design eliminates the need for an additional reset device to automatically return the piston 14, making the overall structure simpler and more compact.

[0084] Of course, depending on the design requirements, the piston member 14 can also be helped to return to its original position by other reset devices, such as a spring mechanism. Like the piston cylinder solution, with other reset devices, the movement direction of the piston member 14 is not limited to the height direction.

[0085] Based on the above-mentioned return action, other corresponding structures can also be designed to adapt to the structure. For example, in one embodiment, the locking member 16 can be rotatably set on the water tank 50, and the locking member 16 will rotate back to the locking position under the action of gravity. A locking portion 162 is provided on the locking member 16. A boosting plate 145 is provided on the boosting end 144 of the piston member 14, and a snap-fit ​​member 146 is provided on the side of the boosting plate 145 facing the piston end 142. Regarding the matching requirements between the locking portion 162 and the snap-fit ​​member 146, it is necessary to make the locking portion 162 in the locking position able to abut against the snap-fit ​​member 146 in the initial boosting position, see Figure 4 、 Figure 5 The structural relationship has been described above and will not be repeated here. On the basis of this structure, in order to cooperate with the automatic return of the piston member 14, it is also necessary to enable the engaging member 146 returning to the initial pressurization position to push the locking portion 162 to leave the locking position, so that the locking portion 162 avoids the engaging member 146 of the piston member 14 until the engaging member reaches its initial pressurization position. The locking portion 162 will return to its locking position under the action of gravity. This process can be seen in Figure 10 、 Figure 11 .

[0086] The above-mentioned requirements for the cooperation between the locking portion 162 and the engaging member 146 can be simply summarized as follows: when the engaging member 146 moves downward from the top of the locking portion 162, the locking portion 162 can prevent the engaging member 146 from moving downward; when the engaging member 146 moves upward from the bottom of the locking portion 162, the engaging member 146 can push the locking portion 162 away and move to the top of the locking portion 162, and then the locking portion 162 can return to the locked position under the action of gravity. Figure 10 As shown, when moving upward from the bottom, the engaging member 146 can push the locking portion 162 through the inclined surface design.

[0087] The above structure is cleverly designed, and no additional power mechanism is required for the entire process.

[0088] To complete the return, in one embodiment, the trigger member 126 can be rotatably arranged on the piston cylinder 126 and can be returned to the pulling position where it can contact and pull the lock member 16 under the action of gravity. The state of the trigger member 126 pulling the lock member 16 in the pulling position can be seen in FIG. Figure 6 In other figures, the trigger member 126 also returns to the pulling position under the action of gravity when no external force is applied. However, in the process of the piston cylinder 12 returning to the closed position, see Figure 8 and Figure 9 The linkage portion 164 of the locking member 16 in the locking position can push the trigger member 126 away from its pulled position, so that the piston cylinder 12 can return to the closed position, and thereafter, the trigger member 126 of the piston cylinder 12 will return to the pulled position under the action of gravity.

[0089] Those skilled in the art will understand that in the above structure, in order to ensure that the linkage portion 164 of the locking member 16 in the locking position can push the trigger member 126 to leave its pulled position, the locking member 16 in the locking position can be designed to rotate only in one direction. For example, the locking member 16 on the left side of the figure can only rotate counterclockwise after reaching the locking position, and the locking member 16 on the right side of the figure can only rotate clockwise after reaching the locking position.

[0090] The requirements for the cooperation between the trigger member 126 and the linkage portion 164 of the lock member 16 can be simply summarized as follows: when the trigger member 126 moves upward from below the linkage portion 164, the trigger member 126 can pull the linkage portion 164 to drive the lock member 16 out of the locked position; when the trigger member 126 moves downward from above the linkage portion 164, the linkage portion 164 can push the trigger member 126 away from its pulled position until the trigger member 126 moves below the linkage portion 164, after which the trigger member 126 can return to the pulled position under the action of gravity. Figure 8 As shown, when moving downward from the top, the trigger member 126 can be pushed by the linkage portion 164 through the inclined surface design.

[0091] The above structure is cleverly designed, and no additional power mechanism is required for the entire process.

[0092] The present application also provides a toilet water tank assembly, comprising a water tank 50 and the aforementioned pressurized drainage device 10. The water tank 50 has a water storage chamber 52 and a drainage chamber 56, with the water storage chamber 52 connected to the drainage chamber 56 via a drainage port 54. The piston cylinder 12 of the pressurized drainage device 10 is movably disposed within the water storage chamber 52 of the water tank 50. When the piston cylinder 12 is in a closed position, it can seal the drainage port 54. A piston member 14 is disposed through the drainage port 54, with the pressurized end 144 of the piston member 14 positioned within the drainage chamber 56 of the water tank 50. A locking member 16 is disposed within the water tank 50.

[0093] The water tank assembly of the above structure can improve the flushing effect and make the entire pressurizing action controllable and stable, without the need to add an additional power device in the water tank to complete the pressurizing action.

[0094] In the embodiment shown in the figure, the water tank 50 can be used as a split structure, including a water tank body (composed of Figure 1 The water tank body is formed by combining a lower box body 51 and an upper box body 53), and a drain cylinder 55. The water tank body is formed with a water storage chamber 52 and a drain outlet 54. The drain cylinder 55 can be assembled to the water tank body and forms a drain chamber 56. This solution modularizes the overall structure of the water tank, reducing the difficulty of production and assembly.

[0095] The present application also provides a toilet having the above-mentioned water tank assembly.

[0096] The above description is only a specific embodiment of the present application. Based on the above teachings of the present application, those skilled in the art may make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above description is only a better explanation of the purpose of the present application, and the scope of protection of the present application shall be based on the scope of protection of the claims.

Claims

1. A pressurized drainage device for a toilet, wherein the pressurized drainage device can be assembled to a water tank of the toilet, The water tank has a water storage chamber and a drainage chamber, and the water storage chamber is connected to the drainage chamber through a drainage port. It is characterized in that the pressurized drainage device includes: A piston cylinder, the piston cylinder being movably disposed in the water storage chamber of the water tank and being movable to a closed position and a triggered position. The piston cylinder in the closed position is capable of closing the drain port, and the piston cylinder is further provided with a water inlet hole; a piston member movably disposed in the piston barrel and capable of being positioned at a pressurizing initial position, the piston member comprising a piston end extending into the interior of the piston barrel and a pressurizing end disposed opposite the piston end, a pressurizing space being formed between the piston end and the piston barrel, the pressurizing space being connected to the water inlet, and the piston member being disposed through the drain port so that the pressurizing end is located in the drain chamber of the water tank; A locking member is arranged in the water tank and can be moved to a locking position. The locking member in the locking position can prevent the piston member located at the initial boosting position from moving toward the side where the boosting end is located, and the piston cylinder located at the triggering position can drive the locking member to disengage from the locking position.

2. The pressurized drainage device according to claim 1, characterized in that: The piston cylinder can return to the closed position under the action of gravity.

3. The pressurized drainage device according to claim 2, characterized in that: The piston end of the piston member is provided with a float. Under the action of buoyancy, the float can drive the piston member to move toward the side where the piston end is located.

4. The pressurized drainage device according to claim 2, characterized in that: The locking member is rotatably arranged on the water tank, and the locking member rotates back to the locking position under the action of gravity.

5. The pressurized drainage device according to claim 4, characterized in that: The locking member has a locking portion, The boosting end of the piston is provided with a boosting plate, and a clamping member corresponding to the locking portion is provided on the side of the boosting plate facing the piston end. The locking portion at the locking position can abut against the engaging member at the initial boost position. The engaging member returning to the pressurization initial position can push the locking portion to leave the locking position until the engaging member reaches the pressurization initial position.

6. The pressurized drainage device according to claim 4, characterized in that: The locking member also has a linkage portion. The piston cylinder is provided with a trigger member corresponding to the linkage portion. The trigger member located at the trigger position can pull the locking member through the linkage portion to disengage the locking member from the locking position.

7. The pressurized drainage device according to claim 6, characterized in that: The trigger is rotatably mounted on the piston cylinder and can return to a pulling position under the action of gravity to contact and pull the locking member. During the process of the piston cylinder returning to the closed position, the linkage portion located at the locking position can push the trigger member to leave its pulled position, so that the piston cylinder can return to the closed position.

8. A water tank assembly for a toilet, characterized in that: It includes: The water tank has a water storage chamber and a drainage chamber, and the water storage chamber is connected to the drainage chamber through a drainage port. According to the pressurized drainage device as described in any one of claims 1 to 7, the piston cylinder of the pressurized drainage device can be movably arranged in the water storage chamber, the piston cylinder in the closed position can close the drain port, the piston member is passed through the drain port so that the pressurized end is located in the drain chamber, and the locking member is arranged in the water tank.

9. The water tank assembly according to claim 8, wherein: The water tank includes a water tank body and a drainage cylinder. The water tank body is formed with the water storage cavity and provided with the drainage port. The drainage cylinder can be assembled to the water tank body and is formed with the drainage cavity.

10. A toilet, characterized in that It comprises the water tank assembly according to any one of claims 8 or 9.

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