Air bag type push switch for pneumatic control drain valve

Abstract

The utility model relates to the technical field of push switches, in particular to an air bag type push switch for an air control drain valve, which comprises a base, an air bag component and a push seat, a cavity is arranged in the base, and a spring is axially mounted in the cavity; the air bag assembly extends into the spring and can be compressed in the axial direction of the spring. The pressing seat is detachably and fixedly connected with the base, pressing blocks used for pressing the air bag are movably arranged on the pressing seat, according to the air bag type pressing switch for the air control drainage valve, pressing is conducted through the different pressing blocks on the pressing seat, so that the air bag assembly is driven to generate different air pressure changes, and therefore the air flow of the air control drainage valve is controlled; the elasticity of the air bag is maintained by adding the spring outside the air bag, so that the service life of the air bag is longer.

Description

Technical Field

[0001] This utility model relates to the field of push-button switch technology, specifically a pneumatically controlled pneumatic drain valve pneumatically controlled push-button switch. Background Technology

[0002] Pneumatically controlled drain valves (or air-pressure drain valves) are key components widely used in modern water-saving sanitary ware. Their working principle involves operating a push-button switch located on the tank lid, which is connected to the drain valve body at the bottom of the tank via an air-controlled conduit. When the user presses the switch, the mechanism inside compresses the air in the conduit, using the air pressure to trigger the opening and closing of the drain valve, thus achieving drainage or water stoppage.

[0003] However, because the airbag is elastic, pressing it too many times will cause it to contract, thus reducing the amount of air released. Utility Model Content

[0004] The purpose of this invention is to provide a pneumatic pressure switch for a pneumatically controlled drain valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatically controlled drain valve pneumatically controlled push-button switch, comprising a base, a pneumatically controlled pneumatically controlled assembly, and a push-button seat. The base has a chamber inside, and a spring is installed axially inside the chamber. The pneumatically controlled pneumatically controlled drain valve is controlled by pressing the pneumatically controlled pneumatically controlled assembly.

[0006] Preferably, the chamber is provided with an upper connecting groove that mates with the airbag assembly.

[0007] Preferably, the airbag assembly includes:

[0008] An airbag, which is an elastic airbag, has an upper protrusion at the top and a lower protrusion at the bottom. A sealing ring is fitted on the upper protrusion. The top of the airbag extends into the upper connecting groove through the upper protrusion and presses the sealing ring to fix it in the upper connecting groove.

[0009] The connecting seat has at least two drive rods at its bottom, each drive rod corresponding to a pressing block. The connecting seat has at least one through hole and a lower connecting groove at its top. The bottom of the airbag is fixed in the lower connecting groove by a lower protruding post.

[0010] The connecting sleeve has the airbag inserted and fixedly installed inside it. The connecting sleeve has at least one insert plate with an opening extending upward from the bottom of the insert plate, forming support legs on both sides of the opening. The bottom of the support legs has an extension block. When the two support legs are pressed in opposite directions, they can pass through the through hole. After the support legs are reset, the extension block limits the upward displacement of the connecting sleeve relative to the connecting seat.

[0011] Preferably, the connecting seat is provided with at least two protrusions, and the chamber is provided with corresponding grooves. The connecting seat extends into the grooves through the protrusions, so that the connecting seat can stably press the airbag.

[0012] Preferably, one of the drive rods is located directly below the airbag, and the compression of the airbag by the drive rod located directly below the airbag is greater than the compression of the airbag by the other drive rods.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This type of pneumatically controlled drain valve uses a pneumatically controlled push-button switch to press different push-button blocks on the push-button base, thereby causing different air pressure changes in the pneumatically controlled drain valve.

[0015] 2. By adding springs to the outside of the airbag to maintain its elasticity, the lifespan of the airbag is extended. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the airbag assembly installation structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the distribution structure of the pressing blocks on the pressing base of this utility model;

[0019] Figure 4 This is a schematic diagram of the drive rod mounting structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the airbag assembly structure of this utility model.

[0021] In the attached diagram, the following are the reference numerals: 1. Base; 11. Upper connecting groove; 12. Groove; 2. Spring; 3. Airbag assembly; 31. Airbag; 311. Upper protrusion; 312. Sealing ring; 313. Lower protrusion; 32. Connecting seat; 321. Drive rod; 322. Lower connecting groove; 323. Through hole; 324. Protrusion; 33. Connecting sleeve; 331. Insert plate; 332. Opening; 333. Support leg; 334. Extension block; 4. Pressing seat; 41. Pressing block. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] Example: Please refer to Figures 1-5 This utility model provides a technical solution: a pneumatically controlled drain valve with an airbag-type push-button switch, including a base 1, an airbag assembly 3, and a push-button seat 4. The base 1 has two chambers inside, and a spring 2 is installed axially inside each chamber. One end of the spring 2 is fixed to the inner wall of the chamber, and the other end of the spring 2 is a free end. The airbag assembly 3 extends into the spring 2 and can be compressed axially. The spring 2 is added to the outside of the airbag assembly 3 to maintain the elasticity of the airbag assembly 3, so that the service life of the airbag assembly 3 is longer. The push-button seat 4 is detachably and fixedly connected to the base 1. A push-button block 41 for pressing the airbag 31 is movably arranged on the push-button seat 4. The push-button block 41 drives the airbag 31 to generate air pressure changes, thereby controlling the gas flow of the pneumatically controlled drain valve.

[0024] In this embodiment, the chamber is provided with an upper connecting groove 11 that is connected to the airbag assembly 3, so that the top of the airbag assembly 3 is fixed inside the chamber.

[0025] In this embodiment, the airbag assembly 3 includes an airbag 31, a connecting seat 32, and a connecting sleeve 33. The airbag 31 is an elastic airbag. The top of the airbag 31 is provided with an upper protrusion 311, and the bottom of the airbag 31 is provided with a lower protrusion 313. A sealing ring 312 is fitted on the upper protrusion 311. The sealing ring 312 is an elastic sealing ring. The overall width of the upper protrusion 311 after the sealing ring 312 is fitted is slightly smaller than the width of the upper connecting groove 11. The top of the airbag 31 extends into the upper connecting groove 11 through the upper protrusion 311 and squeezes the sealing ring 312 to fix it in the upper connecting groove 11.

[0026] The bottom of the connecting seat 32 is provided with at least two drive rods 321, preferably two drive rods 321. The drive rods 321 correspond one-to-one with the pressing block 41. One of the drive rods 321 is located directly below the airbag 31. The compression amount of the drive rod 321 located directly below the airbag 31 on the airbag 31 is greater than the compression amount of the other drive rod 321 on the airbag 31.

[0027] The connecting seat 32 has four through holes 323, and the top of the connecting seat 32 has a lower connecting groove 322. The bottom of the airbag 31 is fixed in the lower connecting groove 322 by a lower protrusion 313. By fixing the top and bottom of the airbag 31 between the upper connecting groove 11 and the lower connecting groove 322 respectively, the spring 2 can drive the airbag 31 back to the highest point with each press, avoiding excessive pressing that could cause the airbag 31 to contract. The airbag 31 extends into and is fixedly installed inside the connecting sleeve 33. The device includes at least one insert plate 331, preferably four insert plates 331. The bottom of the insert plate 331 extends upward and has an opening 332, forming support legs 333 on both sides of the opening 332. The bottom end of the support legs 333 is provided with an extension block 334. The insert plate 331 is made of thermoplastic elastomer and has elasticity. When the two support legs 333 are pressed in opposite directions, they can pass through the through hole 323. After the support legs 333 are reset, the extension block 334 limits the upward displacement of the connecting sleeve 33 relative to the connecting seat 32, preventing the connecting sleeve 33 from falling off the connecting seat 32.

[0028] In this embodiment, the connecting seat 32 is provided with at least two protrusions 324, and the cavity is provided with a corresponding groove 12. The connecting seat 32 extends into the groove 12 through the protrusions 324, so that the connecting seat 32 can stably press the airbag 31.

[0029] In this embodiment, when the airbag 31 is compressed by the drive rod 321 located directly below the airbag 31 driven by a pressing block 41, the gas flow rate of the pneumatic drain valve is relatively large, resulting in a shorter drainage length. When the airbag 31 is compressed by the corresponding drive rod 321 driven by another pressing block 41, the gas flow rate of the pneumatic drain valve is relatively small, resulting in a longer drainage length. The driving principle of the pneumatic drain valve is disclosed in detail in the patent "A Single-Line Double-Control Pneumatic Drain Valve" with publication number CN 119663946A, and will not be repeated here.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pneumatically operated pneumatic drain valve with a pneumatic bladder-type push-button switch, characterized in that, include: The base (1) has a cavity inside, and a spring (2) is installed axially inside the cavity; An airbag assembly (3) extends into and is installed inside a spring (2) and can be compressed along its axial direction. The airbag assembly (3) includes an airbag (31) connected to a venting tube for connecting to a pneumatically controlled drain valve. The pressing base (4) is detachably and fixedly connected to the base (1), and the pressing base (4) is movably provided with a pressing block (41) for pressing the airbag (31).

2. The pneumatic pressure switch for a pneumatically controlled drain valve according to claim 1, characterized in that: The chamber is provided with an upper connecting groove (11) that is connected to the airbag assembly (3).

3. The pneumatic pressure switch for a pneumatically controlled drain valve according to claim 1, characterized in that: The airbag assembly (3) includes: The airbag (31) is an elastic airbag. The top of the airbag (31) is provided with an upper protrusion (311), and the bottom of the airbag (31) is provided with a lower protrusion (313). A sealing ring (312) is fitted on the upper protrusion (311). The top of the airbag (31) extends into the upper connecting groove (11) through the upper protrusion (311) and squeezes the sealing ring (312) to fix it in the upper connecting groove (11). The connecting seat (32) has at least two drive rods (321) at its bottom, and the drive rods (321) correspond one-to-one with the pressing block (41). The connecting seat (32) has at least one through hole (323), and the top of the connecting seat (32) has a lower connecting groove (322). The bottom of the airbag (31) is fixed in the lower connecting groove (322) by a lower protrusion (313). The connecting sleeve (33) is into which the airbag (31) extends and is fixedly installed. The connecting sleeve (33) is provided with at least one insert plate (331). The bottom of the insert plate (331) extends upward and has an opening (332), so that the two sides of the opening (332) form support legs (333). The bottom end of the support leg (333) is provided with an extension block (334). The two support legs (333) can pass through the through hole (323) when pressed in opposite directions. After the support leg (333) is reset, the extension block (334) limits the upward displacement of the connecting sleeve (33) relative to the connecting seat (32).

4. The pneumatic pressure switch for a pneumatically controlled drain valve according to claim 3, characterized in that: The connecting seat (32) is provided with at least two protrusions (324), and the cavity is provided with a corresponding groove (12). The connecting seat (32) extends into the groove (12) through the protrusions (324) to achieve stable pressing of the airbag (31) by the connecting seat (32).

5. A pneumatic pressure switch for a pneumatically controlled drain valve according to claim 4, characterized in that: One of the drive rods (321) is located directly below the airbag (31). The compression of the airbag (31) by the drive rod (321) located directly below the airbag (31) is greater than the compression of the airbag (31) by the other drive rods (321).

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