Flushing switch and flushing system

Abstract

The utility model provides a flushing switch and a flushing system. The flushing switch comprises a switch body, a pressing piece and an elastic piece. The switch body is provided with an inner cavity, and the inner cavity is provided with a receding opening and an air outlet. The pressing piece comprises a pressing portion and a piston head, the piston head is movably arranged in an inner cavity of the switch body, the piston head and the inner cavity form a closed action cavity, the air outlet is communicated with the action cavity, the pressing portion extends to the outside of the switch body through the receding opening, and the elastic piece is arranged between the switch body and the pressing piece. Reset force for compressing the action cavity is provided for the piston head. According to the flushing switch provided by the utility model, the piston type pressing piece and the elastic piece are arranged, air supply can be formed after the pressing piece is pressed and released, air can be supplied to other switches needing to be started by an air source, and the flushing switch adopts a pure mechanical structure and is not influenced by power failure.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a flushing switch and a flushing system. Background Technology

[0002] A flush switch, used in toilets, senses the user's actions of sitting down and getting up / stepping on / releasing the flush button, thus controlling the flushing system to flush when the user gets up / releases the button. Currently, most flush switches on the market use electronic sensor switches, which are simple to control, have a simple implementation principle, and are easy to manufacture. However, this type of switch or toilet must use electricity. When the power is off, flushing will not work, resulting in a poor user experience. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a purely mechanical switch structure.

[0004] In a first aspect, a flushing switch is provided, comprising a switch body, a pressing element, and a resilient element, wherein...

[0005] The switch body has an inner cavity, and the inner cavity has a clearance port and an air outlet.

[0006] The pressing element includes a pressing part and a piston head. The piston head is movably disposed in the inner cavity of the switch body and forms a closed working cavity with the inner cavity. The air outlet communicates with the working cavity. The pressing part extends to the outside of the switch body through a relief port. The elastic element is disposed between the switch body and the pressing element.

[0007] In use, the piston head moves within the inner cavity by being pushed or pulled by the pressing part.

[0008] The elastic element provides the piston head with a restoring force to compress the working chamber. After the pressing part is released, the piston head returns to its original position and compresses the working chamber. The working chamber exhausts air through the air outlet and shrinks. At this time, the exhaust from the air outlet can supply air to other switches that require an air source to start.

[0009] The flushing switch provided by this utility model, by setting a piston-type pressing element and configuring an elastic element, can form an air supply after the pressing element is pressed and released, thereby supplying air to other switches that require an air source to start. Moreover, it adopts a purely mechanical structure, so even if the power is off, it will not affect its operation.

[0010] Preferably, the inner cavity is further provided with an air supply port, which is equipped with a one-way valve for one-way airflow. When the working chamber expands, air is drawn in through the air supply port to replenish the air lost in the working chamber and avoid insufficient air supply.

[0011] Preferably, the inner cavity is a groove, or, to avoid the piston head being exposed, the inner cavity is also a closed cavity, and is divided into the working cavity and the expansion cavity by the piston head. The expansion cavity is also provided with a connecting port. When the working cavity is in an expanded state, the expansion cavity releases pressure through the connecting port, and when the working cavity is in a compressed state, the expansion cavity draws air through the connecting port.

[0012] Preferably, for ease of assembly, the switch body includes a base and an end cap, the inner cavity is disposed within the base, and the end cap closes the opening of the inner cavity.

[0013] Preferably, the end cap and the piston head constitute the two ends of the working cavity, respectively.

[0014] Preferably, the end cap and the seat are assembled together by means of threads, welding, bonding, snap-fit, or integral molding.

[0015] Preferably, both the air outlet and the connecting hole are located on the periphery of the switch body.

[0016] Preferably, the clearance opening is located at the end of the inner cavity, and the pressing part is rod-shaped, with one end connected to the middle of the piston head and the other end extending from the clearance opening. The pressing rod expands the working cavity by pushing the piston rod, resulting in a simple structure.

[0017] Preferably, the relief opening is extended to form a guide hole, which can provide a guiding effect for the movement of the pressing member.

[0018] Preferably, the elastic element is a spring, which is compressed and installed in the inner cavity. One end of the spring abuts against the side of the piston head facing away from the working cavity, and the other end abuts against the inner wall of the switch body. The structure is simple, easy to assemble, and low in cost.

[0019] In a second aspect, a flushing system is provided, comprising the flushing switch and flushing valve described in the first aspect. The flushing valve includes a cover and a pneumatic actuation element.

[0020] The cover includes a pressure relief chamber and a mounting chamber. A pressure relief hole is provided between the pressure relief chamber and the mounting chamber. The mounting chamber has a connecting hole that communicates with the outside. The pneumatic actuation component includes a sealing component and a pneumatic actuation plate. The sealing component is movably installed in the mounting chamber and seals / opens the pressure relief hole. The pneumatic actuation plate is installed in the mounting chamber and is located at the top of the connecting hole. The pneumatic actuation plate and the top of the mounting chamber form a sealed space. The sealed space has an air inlet and an air outlet. The air inlet is connected to the air outlet of the flushing switch, and the air outlet has an air valve. The pneumatic actuation plate drives the sealing component to open the pressure relief hole through movement or elastic deformation.

[0021] The rinsing system also includes a seat ring, and the rinsing switch is installed between the seat ring and the ceramic body. The pressing element is pressed down by the seat ring. Alternatively, the rinsing system also includes a foot switch, and the rinsing switch is installed inside the foot switch, or the rinsing switch is a foot switch.

[0022] Install the inlet flushing valve onto the pilot valve; at this point, a closed space is created.

[0023] In use, gas is injected into the sealed space through the air inlet via the flushing switch, increasing the air pressure in the sealed space. This presses down on the air pressure drive plate, causing it to move or deform elastically, and moves the sealing component, thereby opening the pressure relief hole and connecting the pressure relief chamber and the mounting chamber. Since the mounting chamber can be connected to the outside through the connecting hole, the liquid in the pressure relief chamber can be discharged through the pressure relief hole into the mounting chamber, and then discharged to the outside through the connecting hole, thus releasing the water pressure in the pressure relief chamber. At this time, under the water pressure on the outlet side of the water inlet channel, the pressure relief plate of the pilot valve disengages from the outlet of the water inlet channel, opening the outlet of the water inlet channel and allowing water to flow into the inlet of the outlet channel. When it is necessary to close the water valve, simply open the vent valve of the vent hole of the cover to release the air in the sealed space. At this time, the air pressure drive plate will return to normal and no longer exert force on the sealing member. The sealing member will reset and seal the pressure relief hole again. The pressure relief chamber will also become relatively closed again. The water pressure will increase and press the pressure relief plate against the outlet of the water inlet channel again through the water pressure, and the water valve will close.

[0024] As can be seen from the above description of this utility model, this utility model has the following beneficial effects:

[0025] The flushing switch provided by this utility model, by setting a piston-type pressing element and configuring an elastic element, can form an air supply after the pressing element is pressed and released, thereby supplying air to other switches that require an air source to start. Moreover, it adopts a purely mechanical structure, so even if the power is off, it will not affect its operation.

[0026] The inner cavity is also provided with an air inlet, which is equipped with a one-way valve for one-way air flow. When the working chamber expands, air is drawn in through the air inlet to replenish the air lost in the working chamber and avoid insufficient air supply.

[0027] The inner cavity can be a groove or a closed cavity, allowing for flexible structure;

[0028] The extended relief opening forms a guide hole, which can guide the movement of the pressing member and improve the sealing effect of the piston head.

[0029] The flushing system provided by this utility model can replace the traditional control conversion component, and has the advantages of high sensitivity and strong durability. At the same time, it adopts a pneumatic start method, which can avoid the problem of rust compared with the steel rope traction mechanism. In addition, the direction can be flexibly changed during the force transmission process. Attached Figure Description

[0030] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0031] in:

[0032] Figure 1 This is an axonometric view of a flushing switch;

[0033] Figure 2 A front view of a flush switch Figure 1 ;

[0034] Figure 3 A cross-section of a flush switch Figure 1 ;

[0035] Figure 4 A cross-section of a flush switch Figure 2 ;

[0036] Figure 5 A front view of a flush switch Figure 2 ;

[0037] Figure 6 A cross-section of a flush switch Figure 3 ;

[0038] Figure 7 This is an axonometric view of a flushing system;

[0039] Figure 8 A cross-section of a flushing system Figure 1 ;

[0040] Figure 9 A cross-section of a flushing system Figure 2 ;

[0041] Figure 10 A cross-section of a flushing system Figure 3 ;

[0042] Figures 1 to 10The components are labeled as follows: flushing switch 1, switch body 11, inner cavity 111, working cavity 1111, expansion cavity 1112, clearance port 112, air inlet 113, air outlet 114, one-way valve 115, connecting port 116, pressing component 12, pressing part 121, piston head 122, elastic component 13, flushing valve 2, cover 21, pressure relief cavity 211, mounting cavity 212, pressure relief hole 213, connecting hole 214, air inlet 215, air outlet 216, air outlet valve 217, pneumatic drive component 22, sealing component 221, and pneumatic drive plate 222. Detailed Implementation

[0043] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Example 1:

[0044] Please see Figures 1 to 6 A flushing switch 1 is provided, comprising a switch body 11, a pressing member 12, and a resilient member 13, wherein,

[0045] The switch body 11 has an inner cavity 111, and the inner cavity 111 has a clearance port 112 and an air outlet 114.

[0046] The pressing member 12 includes a pressing part 121 and a piston head 122. The piston head 122 is movably disposed in the inner cavity 111 of the switch body 11 and forms a closed working cavity 1111 with the inner cavity 111. The air outlet 114 communicates with the working cavity 1111. The pressing part 121 extends to the outside of the switch body 11 through the relief port 112. The elastic member 13 is disposed between the switch body 11 and the pressing member 12.

[0047] In this embodiment, to prevent the piston head 122 from being exposed, the inner cavity 111 is also a closed cavity, and is divided by the piston head 122 into the working cavity 1111 and the expansion cavity 1112. The expansion cavity 1112 is also provided with a connecting port 116. When the working cavity 1111 is in an expanded state, the expansion cavity 1112 releases pressure through the connecting port 116, and when the working cavity 1111 is in a compressed state, the expansion cavity 1112 draws in air through the connecting port 116. Alternatively, in another embodiment, the inner cavity 111 is a groove, with one end open away from the working cavity 1111, to facilitate the installation of the pressing member 12.

[0048] Based on the above embodiments, for ease of assembly, the switch body 11 includes a base and an end cap. The inner cavity 111 is disposed within the base, and the end cap closes the opening of the inner cavity 111. The end cap and the piston head 122 respectively constitute the two ends of the working cavity 1111. Preferably, the end cap and the base are assembled together by means of threads, welding, bonding, snap-fit, or integral molding.

[0049] Furthermore, both the air outlet 114 and the connecting hole 214 are located on the periphery of the switch body 11. The clearance opening 112 is located at the end of the inner cavity 111. The pressing part 121 is rod-shaped, with one end connected to the middle of the piston head 122 and the other end extending from the clearance opening 112. The pressing rod expands the working cavity 1111 by pushing the piston rod, resulting in a simple structure. Preferably, the clearance opening 112 is extended to form a guide hole, which can provide guidance for the movement of the pressing member 12.

[0050] Based on the above embodiments, the elastic element 13 is a spring, which is compressed and installed in the inner cavity 111. One end of the spring abuts against the side of the piston head 122 facing away from the working cavity 1111, and the other end abuts against the inner wall of the switch body 11. The structure is simple, easy to assemble, and low in cost.

[0051] In use, the piston head 122 moves in the inner cavity 111 by pushing or pulling the pressing part 121. At this time, the switch supplied by the flushing switch sends air back into the working cavity 1111, and the working cavity 1111 expands.

[0052] The elastic element 13 provides the piston head 122 with the restoring force of the compression chamber 1111. After the pressing part 121 is released, the piston head 122 is reset and the chamber 1111 is compressed. The chamber 1111 is vented and reduced through the air outlet 114. At this time, the exhaust from the air outlet 114 can supply air to other switches that require an air source to start.

[0053] Alternatively, in another embodiment, to prevent insufficient air supply during subsequent use due to air leakage between the flushing switch and the operating chamber 1111, one embodiment further includes an air replenishment port 113 with a one-way valve 115 for unidirectional airflow. When the operating chamber 1111 expands, it draws air through the air replenishment port 113, thereby replenishing the air lost within the operating chamber 1111 and preventing insufficient air supply.

[0054] The flushing switch provided by this utility model, by setting a piston-type pressing member 12 and configuring an elastic member 13, can form a gas supply after the pressing member 12 is pressed and released, thereby supplying gas to other switches that require a gas source to start. Moreover, it adopts a purely mechanical structure, so even if the power is off, it will not affect its operation. Example 2:

[0055] Please see Figures 1 to 10 A flushing system is provided, including the flushing switch 1 and flushing valve 2 as described in the first aspect.

[0056] The flushing valve 2 includes a cover 21 and a pneumatic drive component 22.

[0057] The cover 21 includes a pressure relief chamber 211 and a mounting chamber 212. A pressure relief hole 213 is provided between the pressure relief chamber 211 and the mounting chamber 212. The mounting chamber 212 is provided with a connecting hole 214 communicating with the outside. The pneumatic drive component 22 includes a sealing component 221 and a pneumatic drive plate 222. The sealing component 221 is movably installed in the mounting chamber 212 and seals / opens the pressure relief hole 213. The pneumatic drive plate 222 is installed in the mounting chamber 212 and is located at the top of the connecting hole 214. The pneumatic drive plate 222 and the top of the mounting chamber 212 form a sealed space. The sealed space is provided with an air inlet 215 and an air outlet 216. The air inlet 215 is connected to the air outlet 114 of the flushing switch, and the air outlet 216 is provided with an exhaust valve 217. The pneumatic drive plate 222 drives the sealing component 221 to open the pressure relief hole 213 through movement or elastic deformation.

[0058] In this embodiment, the flushing system further includes a seat ring, and the flushing switch 1 is installed between the seat ring and the ceramic body. When the user sits on the seat ring, the pressing member 12 is pressed, and when the user leaves the seat ring, the pressing member 12 is released, and the flushing switch 1 supplies air to the flushing valve 2 to start flushing. Alternatively, in another embodiment, the flushing system further includes a foot switch, and the flushing switch 1 is installed inside the foot switch. Alternatively, the flushing switch 1 is a foot switch. When the user steps on the foot switch, the pressing member 12 is pressed, and when the user releases the foot switch, the pressing member 12 is released, and the flushing switch 1 supplies air to the flushing valve 2 to start flushing.

[0059] Install the inlet flushing valve onto the pilot valve; at this point, a closed space is created.

[0060] In use, gas is injected into the sealed space through the air inlet 215 via the flushing switch, increasing the air pressure in the sealed space. This presses down on the air pressure drive plate 222, causing it to move or undergo elastic deformation, which in turn moves the sealing member 221. This opens the pressure relief hole 213, connecting the pressure relief chamber 211 and the mounting chamber 212. Since the mounting chamber 212 is connected to the outside through the connecting hole 214, the liquid in the pressure relief chamber 211 can be discharged through the pressure relief hole 213 into the mounting chamber 212, and then discharged to the outside through the connecting hole 214, thus releasing the water pressure in the pressure relief chamber 211. At this time, under the water pressure on the outlet side of the water inlet channel, the pressure relief plate of the pilot valve disengages from the outlet of the water inlet channel, opening the outlet of the water inlet channel and allowing water to flow into the inlet of the outlet channel. When it is necessary to close the water valve, simply open the vent valve 217 of the vent hole 216 of the cover 21 to release the air in the sealed space. At this time, the air pressure drive plate 222 returns to normal and no longer applies force to the sealing member 221. The sealing member 221 resets and seals the pressure relief hole 213 again. The pressure relief chamber 211 also becomes relatively closed again. The water pressure increases and presses the pressure relief plate against the outlet of the water inlet channel again through the water pressure, and the water valve closes.

[0061] The flushing system provided by this utility model can replace the traditional control conversion component, and has the advantages of high sensitivity and strong durability. At the same time, it adopts a pneumatic start method, which can avoid the problem of rust compared with the steel rope traction mechanism. In addition, the direction can be flexibly changed during the force transmission process.

[0062] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0065] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0066] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0067] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A flushing switch, characterized in that, Includes the switch body, pressing element, and elastic element; The switch body has an inner cavity, and the inner cavity has a clearance port and an air outlet; The pressing element includes a pressing part and a piston head. The piston head is movably disposed in the inner cavity of the switch body and forms a closed working cavity with the inner cavity. The air outlet communicates with the working cavity. The pressing part extends to the outside of the switch body through a relief opening. The elastic element is disposed between the switch body and the pressing element. The piston head moves by pushing or pulling the pressing part; The elastic element provides the piston head with a restoring force for the compression chamber, which is vented and reduced in size through the outlet.

2. A flushing switch according to claim 1, characterized in that, The inner cavity is also provided with an air inlet, which is equipped with a one-way valve. When the working cavity expands, air is drawn in through the air inlet.

3. A flushing switch according to claim 1, characterized in that, The inner cavity is a groove, or the inner cavity is also a closed cavity, and is divided into the working cavity and the expansion cavity by the piston head. The expansion cavity is also provided with a connecting port. When the working cavity is in an expanded state, the expansion cavity releases pressure through the connecting port, and when the working cavity is in a compressed state, the expansion cavity draws air through the connecting port.

4. A flushing switch according to claim 3, characterized in that, The switch body includes a base and an end cap. The inner cavity is disposed in the base, and the end cap closes the opening of the inner cavity. The end cap and the piston head respectively constitute the two ends of the working cavity.

5. A flushing switch according to claim 4, characterized in that, The end cap and the base are assembled together by means of threads, welding, bonding, snap-fit, or integral molding.

6. A flushing switch according to claim 3, characterized in that, Both the air outlet and the connecting hole are located on the periphery of the switch body.

7. A flushing switch according to claim 1, characterized in that, The clearance opening is located at the end of the inner cavity. The pressing part is rod-shaped, with one end connected to the middle of the piston head and the other end extending from the clearance opening. The pressing part expands the working cavity by pushing the piston rod.

8. A flushing switch according to claim 7, characterized in that, The clearance opening is extended to form a guide hole.

9. A flushing switch according to claim 1, characterized in that, The elastic element is a spring, which is compressed and installed in the inner cavity. One end of the spring presses against the side of the piston head facing away from the working cavity, and the other end presses against the inner wall of the switch body.

10. A flushing system, characterized in that, Includes the flushing switch and flushing valve as described in any one of claims 1 to 9; the flushing valve includes a cover and a pneumatic actuation element; The cover includes a pressure relief chamber and a mounting chamber; a pressure relief hole is provided between the pressure relief chamber and the mounting chamber; the mounting chamber has a connecting hole to the outside; the pneumatic drive component includes a sealing component and a pneumatic drive plate; the sealing component is movably installed in the mounting chamber and seals / opens the pressure relief hole; the pneumatic drive plate is installed in the mounting chamber and is located at the top of the connecting hole; the pneumatic drive plate and the top of the mounting chamber form a sealed space; the sealed space has an air inlet and an air outlet, the air inlet is connected to the air outlet of the flushing switch, and the air outlet has an air valve; the pneumatic drive plate drives the sealing component to open the pressure relief hole through movement or elastic deformation; The flushing system further includes a seat ring, the flushing switch is installed between the seat ring and the ceramic body, and the pressing element is pressed down by the seat ring; or, the flushing system further includes a foot switch, the flushing switch is installed inside the foot switch, or the flushing switch is a foot switch.

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