Gas holder piston anti-torsion device

Abstract

The utility model provides an anti-torsion device for a gas holder piston, which relates to the technical field of gas holder pistons and comprises a gas holder body and a piston body arranged in an inner cavity of the gas holder body, a guide wheel groove is arranged on the inner wall of the gas holder body, and a sealing component is arranged on the side surface of the piston body and comprises a mounting frame fixedly connected to the side surface of the piston body. A first connecting rod is arranged at the bottom of the mounting frame, one end of the first connecting rod is rotationally connected with a second fixing rod, an inner cavity of the second fixing rod is rotationally connected with a second connecting rod, the end, away from the second fixing rod, of the second connecting rod is rotationally connected with the first fixing rod, and the end, away from the second connecting rod, of the second fixing rod is fixedly connected with a sealing gasket. The guide wheel groove is formed, so that the movement track of the piston body can be limited, the situation that the piston body is twisted is avoided, and the mounting frame is mounted at the bottom of the piston body, so that the first connecting rod and the sealing gasket can be supported.

Description

Technical Field

[0001] This utility model relates to the field of gas holder piston technology, and in particular to a gas holder piston anti-torsion device. Background Technology

[0002] Gas holder piston anti-torsion devices are commonly used in various wet or dry gas holders, including coal gas holders. Their main function is to prevent the piston from shifting or twisting under gas pressure, thus avoiding gas leakage due to gaps between the piston and the gas holder. They can also be used in conjunction with alarm systems to alert staff when abnormalities occur, ensuring the safety and stability of the gas holder's operation.

[0003] In practical applications, existing piston anti-torsion devices, using guide rails and guide wheels, can meet the basic requirement of preventing piston misalignment, but the following problems still exist:

[0004] Common dry gas holders typically have guide wheels around the piston to ensure smooth movement of the piston within the gas holder. However, since the piston and guide wheels are slidably connected to the gas holder body, a certain gap remains. Furthermore, when the piston moves up and down, the seals deform, further increasing the gap and ultimately leading to leakage, which affects the gas storage effect. Therefore, this application provides a gas holder piston anti-torsion device to meet this requirement. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a gas holder piston anti-torsion device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gas holder piston anti-torsion device, comprising a gas holder body and a piston body disposed in the inner cavity of the gas holder body, wherein a guide wheel groove is provided on the inner wall of the gas holder body.

[0007] A sealing assembly is disposed on the side of the piston body. The sealing assembly includes a mounting bracket fixedly connected to the side of the piston body. A first connecting rod is provided at the bottom of the mounting bracket. A second fixed rod is rotatably connected to one end of the first connecting rod. A second connecting rod is rotatably connected to the inner cavity of the second fixed rod. A first fixed rod is rotatably connected to the end of the second connecting rod away from the second fixed rod. A sealing gasket is fixedly connected to the end of the second fixed rod away from the second connecting rod.

[0008] A quick-connect assembly is placed inside the mounting bracket. The quick-connect assembly includes a fixing plate that is fixedly connected to the inner wall of the mounting bracket, and a sliding groove is provided on the side of the fixing plate.

[0009] Furthermore, a spring is fixedly connected to one end of the first fixing rod, and a second fixing block is fixedly connected to the end of the spring away from the first fixing rod.

[0010] The technical effect of adopting the above technical solution is that by setting a second fixing block, the support plate and the mounting bracket can be quickly connected.

[0011] Furthermore, the top of the second fixing rod is rotatably connected to the first fixing block, and the bottom of the mounting bracket is fixedly connected to the mounting base.

[0012] The technical effect of adopting the above technical solution is that the gasket can be quickly disassembled by setting the mounting base.

[0013] Furthermore, the bottom of the mounting base is provided with a first groove, one end of the first fixing block extends into the inner cavity of the first groove, and one end of the first fixing block is slidably connected to the inner cavity of the first groove.

[0014] The technical effect of adopting the above technical solution is that the movement trajectory of the second fixed rod can be limited by the cooperation of the first fixed block and the first groove.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] By setting guide wheel grooves, the movement trajectory of the piston body can be restricted, preventing the piston body from twisting. By installing a mounting bracket at the bottom of the piston body, the first connecting rod and the sealing gasket can be supported. The top of the first connecting rod is connected to the bottom of the mounting bracket using a snap-fit ​​connector for easy replacement. During the use of the piston body, the cooperation of the first connecting rod, the second connecting rod, and the second fixing rod ensures that the sealing gasket always remains in contact with the inner cavity of the guide wheel groove, effectively improving the sealing effect and enhancing the sealing performance. This also prevents the sealing gasket from shifting position due to the rise and fall of the piston body during use. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a gas holder piston anti-torsion device provided by this utility model;

[0018] Figure 2 A schematic diagram of the internal cross-sectional structure of a gas holder piston anti-torsion device provided by this utility model;

[0019] Figure 3 A cross-sectional view of a quick-connect assembly for an anti-torsion device for a gas holder piston provided by this utility model;

[0020] Figure 4 A cross-sectional structural schematic diagram of a sealing assembly for an anti-torsion device of a gas holder piston provided by this utility model.

[0021] Legend:

[0022] 1. Gas holder body; 11. Guide wheel groove; 12. Piston body;

[0023] 2. Sealing assembly; 21. Mounting bracket; 22. First connecting rod; 23. First fixing rod; 24. Spring piece; 25. Second connecting rod; 26. Second fixing rod; 27. First fixing block; 28. Mounting base; 29. ​​First groove; 210. Sealing gasket; 211. Second fixing block;

[0024] 3. Quick-connect assembly; 31. Fixing plate; 32. Slide groove; 33. Slider; 34. Support plate; 35. Protrusion; 36. Second groove; 37. Roller. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a gas holder piston anti-torsion device, a gas holder body 1 and a piston body 12 disposed in the inner cavity of the gas holder body 1, and a guide wheel groove 11 is provided on the inner wall of the gas holder body 1.

[0027] The sealing assembly 2 is located on the side of the piston body 12. The sealing assembly 2 includes a mounting bracket 21 fixedly connected to the side of the piston body 12. A first connecting rod 22 is provided at the bottom of the mounting bracket 21. A second fixing rod 26 is rotatably connected to one end of the first connecting rod 22. A second connecting rod 25 is rotatably connected to the inner cavity of the second fixing rod 26. A first fixing rod 23 is rotatably connected to the end of the second connecting rod 25 away from the second fixing rod 26. A sealing gasket 210 is fixedly connected to the end of the second fixing rod 26 away from the second connecting rod 25.

[0028] Quick-connect assembly 3 is placed inside the mounting bracket 21. Quick-connect assembly 3 includes a fixing plate 31 fixedly connected to the inner wall of the mounting bracket 21. A sliding groove 32 is provided on the side of the fixing plate 31. A spring piece 24 is fixedly connected to one end of the first fixing rod 23. A second fixing block 211 is fixedly connected to the end of the spring piece 24 away from the first fixing rod 23. The top of the second fixing rod 26 is rotatably connected to the first fixing block 27. A mounting base 28 is fixedly connected to the bottom of the mounting bracket 21. A first groove 29 is provided at the bottom of the mounting base 28. One end of the first fixing block 27 extends into the inner cavity of the first groove 29 and is slidably connected to the inner cavity of the first groove 29. By setting the guide wheel groove 11, the movement trajectory of the piston body 12 can be restricted, preventing the piston body 12 from twisting. By installing the mounting bracket 21 at the bottom of the piston body 12, the first connecting rod 22 and the sealing... The sealing gasket 210 provides support. The top of the first connecting rod 22 is connected to the bottom of the mounting bracket 21 using a snap-fit ​​connector. Meanwhile, the side of the support plate 34 has a groove that matches the second fixing block 211. When installing the piston body 12, the second fixing block 211 and the first connecting rod 22 work together to enable quick assembly and disassembly. A certain distance is provided between the support plate 34 and the fixing plate 31. During the use of the piston body 12, the first connecting rod 22, the second connecting rod 25, and the second fixing rod 26 work together to convert the vibration stress generated by the movement of the piston body 12 into an outward pushing axial stress. This ensures that the sealing gasket 210 always remains in contact with the inner cavity of the guide wheel groove 11, effectively improving the sealing effect and enhancing the sealing performance. It also prevents the sealing gasket 210 from shifting position due to the movement of the piston body 12 during use.

[0029] Furthermore, such as Figure 2 and Figure 3 As shown: A slider 33 is slidably connected to the inner cavity of the slide groove 32. A support plate 34 is fixedly connected to one end of the slider 33. A second groove 36 is provided on the side of the mounting bracket 21. A roller 37 is fixedly connected to the inner cavity of the second groove 36. By setting a fixing plate 31, the support plate 34 can be supported. Through the cooperation of the slide groove 32 and the slider 33, the sealing assembly 2 can be quickly connected to the piston body 12, improving working efficiency. By setting the second groove 36, the roller 37 can be supported. Through the cooperation of the roller 37 and the guide wheel groove 11, the movement trajectory of the piston body 12 can be limited, preventing the position of the piston body 12 from twisting.

[0030] During the lifting and lowering of the piston body 12, due to the space reserved between the fixed plate 31 and the support plate 34, the movement direction of the support plate 34 is not fixed, such as... Figure 3As shown: In this scheme, a protrusion 35 is fixedly connected to the side of the support plate 34, and the inner cavity of the mounting frame 21 is provided with an opening that matches the protrusion 35. After the support plate 34 is installed, one end of the protrusion 35 enters the inner cavity of the mounting frame 21, thereby enabling secondary fixation of the movement trajectory of the support plate 34.

[0031] like Figure 1-4 As shown:

[0032] In use: First, push the support plate 34 into the inner cavity of the mounting bracket 21, thereby causing the slider 33 to move along the inner cavity of the slide groove 32, which in turn engages the support plate 34 with the piston body 12. At this time, push the mounting seat 28 and the sealing gasket 210 into the side of the mounting bracket 21. When the mounting seat 28 moves to a certain position, the support plate 34 and the mounting bracket 21 are connected by the cooperation of the second fixing block 211 and the first connecting rod 22. After installation, place the piston body 12 into the inner cavity of the gas holder body 1. During the use of the piston body 12, when the piston body 12 enters... During the lifting and lowering motion, the stress at the bottom is transmitted to the first fixed rod 23 through the support plate 34, thereby causing the first fixed rod 23 to move upward. When the first fixed rod 23 moves upward, the second connecting rod 25 and the second fixed rod 26 cooperate to apply stress to the sealing gasket 210, thereby ensuring that the sealing gasket 210 is in close contact with the inner cavity of the guide wheel groove 11, preventing the sealing gasket 210 from falling off during the movement and effectively improving the sealing performance. At the same time, during the movement of the piston body 12, the roller 37 cooperates with the guide wheel groove 11 to ensure that the piston body 12 does not twist.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A gas holder piston anti-torsion device, characterized in that, include: The gas holder body (1) and the piston body (12) disposed in the inner cavity of the gas holder body (1) are provided with guide wheel groove (11). A sealing assembly (2) is placed on the side of the piston body (12). The sealing assembly (2) includes a mounting bracket (21) fixedly connected to the side of the piston body (12). A first connecting rod (22) is provided at the bottom of the mounting bracket (21). A second fixing rod (26) is rotatably connected to one end of the first connecting rod (22). A second connecting rod (25) is rotatably connected to the inner cavity of the second fixing rod (26). A first fixing rod (23) is rotatably connected to one end of the second connecting rod (25) away from the second fixing rod (26). A sealing gasket (210) is fixedly connected to one end of the second fixing rod (26) away from the second connecting rod (25). The quick-connect assembly (3) is placed in the inner cavity of the mounting bracket (21). The quick-connect assembly (3) includes a fixing plate (31) fixedly connected to the inner wall of the mounting bracket (21). The side of the fixing plate (31) is provided with a sliding groove (32).

2. The anti-torsion device for a gas holder piston according to claim 1, characterized in that, One end of the first fixing rod (23) is fixedly connected to a spring piece (24), and the end of the spring piece (24) away from the first fixing rod (23) is fixedly connected to a second fixing block (211).

3. The anti-torsion device for a gas holder piston according to claim 1, characterized in that, The top of the second fixing rod (26) is rotatably connected to the first fixing block (27), and the bottom of the mounting bracket (21) is fixedly connected to the mounting base (28).

4. The anti-torsion device for a gas holder piston according to claim 3, characterized in that, The bottom of the mounting base (28) is provided with a first groove (29), one end of the first fixing block (27) extends into the inner cavity of the first groove (29), and one end of the first fixing block (27) is slidably connected to the inner cavity of the first groove (29).

5. The anti-torsion device for a gas holder piston according to claim 1, characterized in that, The inner cavity of the groove (32) is slidably connected to a slider (33), and one end of the slider (33) is fixedly connected to a support plate (34).

6. The anti-torsion device for a gas holder piston according to claim 5, characterized in that, The side of the support plate (34) is fixedly connected with a protrusion (35).

7. The anti-torsion device for a gas holder piston according to claim 1, characterized in that, The mounting bracket (21) has a second groove (36) on its side, and a roller (37) is fixedly connected to the inner cavity of the second groove (36).

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