Two-stage piston structure
By introducing a pressure relief seal assembly into the two-stage piston structure, including two-stage holes, limiting bodies and pressure relief bodies, the problem of poor sealing and pressure relief structure of the existing two-stage piston is solved, and the safety and stability of the piston during long-term work is achieved.
Patent Information
- Application Number
- CN202421748340.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-23
AI Technical Summary
Most of the existing two-stage pistons do not have a good sealing or pressure relief structure, which leads to the continuous rise of high pressure during long-term work, which poses great safety hazards.
A two-stage piston structure is adopted, including a plug body and a pressure relief seal assembly, which includes a two-stage hole, a restriction body and a pressure relief body, and the sealing and pressure relief functions are realized through the design of these components.
It effectively solves the problem of high pressure rise in two-stage pistons during long-term work, ensuring the safety and stability of the piston structure.
Smart Images
Figure CN222879775U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pistons, in particular to a two-stage piston structure. Background Art
[0002] The car piston is like the central part of the car engine. It plays an extremely important role when the engine is started. The car piston is used to withstand gas pressure and drive the crankshaft to rotate through the piston pin. The top of the piston is also a component of the combustion chamber.
[0003] The piston is generally divided into a primary piston and a secondary piston. The primary double cylinder refers to the double-acting cylinder, and the two-stage single cylinder refers to the single-acting cylinder. In fact, the former is a piston rod, a set of cylinder bodies, and two sets of inlet and outlet valves; the latter is two piston cylinders, two cylinder bodies, and two sets of inlet and outlet valves. However, most of the existing two-stage pistons do not have a good sealing or pressure relief structure, which will lead to a continuous increase in high pressure during long-term work, which will pose a great safety hazard.
[0004] Therefore, there is an urgent need for a two-stage piston structure with good pressure release or sealing structure. Utility Model Content
[0005] The utility model aims to provide a two-stage piston structure, which solves the problem that most existing two-stage pistons do not have a good sealing or pressure release structure, which will lead to a continuous increase in high pressure during long-term work, and there will be great safety hazards.
[0006] To achieve the above-mentioned purpose, the utility model adopts a two-stage piston structure, including a plug body and a pressure relief sealing assembly, the pressure relief sealing assembly includes a two-stage hole, a limiting body and a pressure relief body, the two-stage hole is fixedly connected to the plug body and is located inside the plug body, the limiting body is fixedly connected to the plug body and is located at the external center of the plug body, and the pressure relief body is fixedly connected to the plug body and is located at the external upper end of the plug body.
[0007] Wherein, the pressure relief sealing assembly also includes a limiting ring and a film ring, wherein the limiting ring is fixedly connected to the limiting body and is located on the outer surface of the limiting body, and the film ring is detachably connected to the pressure relief body and is located above the outside of the pressure relief body.
[0008] Among them, the pressure relief sealing assembly also includes a sealing ring, a pressure relief ring and a pressure relief groove. The sealing ring is fixedly connected to the pressure relief body and is located on the side of the pressure relief body away from the film ring. The pressure relief ring is fixedly connected to the pressure relief body and is located on the side of the pressure relief body close to the sealing ring. The pressure relief groove is fixedly connected to the pressure relief body and is located on the inner side of the pressure relief body close to the sealing ring.
[0009] Among them, the two-stage piston structure also includes an extension protection component, which includes an extension body and an extension hole. The extension body is fixedly connected to the plug body and is located above the plug body. The extension hole is fixedly connected to the extension body and is located inside the extension body, and the extension hole is arranged on one side of the extension body close to the two-stage hole.
[0010] Wherein, the extension protection assembly also includes a protection ring and a protection groove, the protection ring is fixedly connected to the extension body and is located on the outer surface of the extension body, and the protection groove is fixedly connected to the protection ring and is located inside the protection ring.
[0011] The utility model discloses a two-stage piston structure, including a plug body and a pressure relief sealing assembly, wherein the pressure relief sealing assembly includes a two-stage hole, a limiting body and a pressure relief body, the two-stage hole is fixedly connected to the plug body and is located inside the plug body, the limiting body is fixedly connected to the plug body and is located at the outer center of the plug body, and the pressure relief body is fixedly connected to the plug body and is located at the outer upper end of the plug body. Since the traditional piston structure is replaced by the pressure relief sealing assembly, the problem that most of the existing two-stage pistons do not have a good sealing or pressure relief structure is actively and effectively solved, which will lead to a great safety hazard during long-term work accompanied by a continuous increase in high pressure. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0013] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.
[0014] Figure 2 It is an overall front view of the first embodiment of the utility model.
[0015] Figure 3 This utility model Figure 2 A magnified view of the local structure at A.
[0016] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.
[0017] 101-plug body, 102-two-stage hole, 103-limiting ring, 104-sealing ring, 105-pressure relief ring, 106-pressure relief groove, 107-film ring, 108-limiting body, 109-pressure relief body, 201-extension body, 202-extension hole, 203-protective ring, 204-protective groove. DETAILED DESCRIPTION
[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0019] First embodiment
[0020] See also Figure 1 to Figure 3 , Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 It is a front view of the whole of the first embodiment of the utility model. Figure 3 This utility model Figure 2 A magnified view of the local structure at A.
[0021] The utility model provides a two-stage piston structure, including a plug body 101 and a pressure relief sealing assembly, wherein the pressure relief sealing assembly includes a two-stage hole 102, a limiting body 108, a pressure relief body 109, a limiting ring 103, a film ring 107, a sealing ring 104, a pressure relief ring 105 and a pressure relief groove 106. The above-mentioned scheme solves the problem that most of the existing two-stage pistons do not have a good sealing or pressure relief structure, which will lead to a continuous increase in high pressure during long-term work, and there will be great safety hazards. It can be understood that the above-mentioned scheme can be used when the piston is used, and the sealing ring 104 will perform a sealing operation on it, which will effectively convert the internal energy, and the pressure relief ring 105 and the pressure relief groove 106 will release the internal energy after the energy reaches the sealing limit, thereby ensuring the overall safety of the hollow in continuous and long-term applications, and actively and effectively solves the problem that most of the existing two-stage pistons do not have a good sealing or pressure relief structure, which will lead to a continuous increase in high pressure during long-term work, and there will be great safety hazards.
[0022] According to this specific embodiment, the two-stage hole 102 is fixedly connected to the plug body 101 and is located inside the plug body 101, the limiting body 108 is fixedly connected to the plug body 101 and is located at the outer center of the plug body 101, and the pressure relief body 109 is fixedly connected to the plug body 101 and is located at the outer upper end of the plug body 101.
[0023] Among them, the limiting ring 103 is fixedly connected to the limiting body 108 and is located on the outer surface of the limiting body 108. The film ring 107 is detachably connected to the pressure relief body 109 and is located above the outside of the pressure relief body 109. The limiting ring 103 is the main component that mainly limits the movement range of the piston.
[0024] Secondly, the sealing ring 104 is fixedly connected to the pressure relief body 109 and is located on the side of the pressure relief body 109 away from the film ring 107. The pressure relief ring 105 is fixedly connected to the pressure relief body 109 and is located on the side of the pressure relief body 109 close to the sealing ring 104. The pressure relief groove 106 is fixedly connected to the pressure relief body 109 and is located on the inner side of the pressure relief body 109 close to the sealing ring 104. The sealing ring 104 is the main component that performs sealing operations and can effectively convert internal energy, while the pressure relief ring 105 and the pressure relief groove 106 will release the internal energy after the energy reaches the sealing limit, thereby ensuring the overall safety of the hollow body in continuous and long-term applications.
[0025] When the utility model is used, the sealing ring 104 will perform a sealing operation on it, which will effectively convert the internal energy, and the pressure relief ring 105 and the pressure relief groove 106 will release the internal energy after the energy reaches the sealing limit, thereby ensuring the overall safety of the hollow in continuous and long-term applications, actively and effectively solving the problem that most of the existing two-stage pistons do not have a good sealing or pressure relief structure, which will lead to a continuous increase in high pressure during long-term work, and there will be great safety hazards.
[0026] Second embodiment
[0027] See also Figure 4 , Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.
[0028] On the basis of the first embodiment, a two-stage piston structure of the utility model further includes an extension protection assembly, and the extension protection assembly includes an extension body 201 , an extension hole 202 , a protection ring 203 and a protection groove 204 .
[0029] According to this specific embodiment, the extension body 201 is fixedly connected to the plug body 101 and is located above the plug body 101. The extension hole 202 is fixedly connected to the extension body 201 and is located inside the extension body 201. The extension hole 202 is arranged on a side of the extension body 201 close to the two-stage hole 102. The extension body 201 is the main component of the main extension body, and the extension hole 202 will cooperate with the two-stage hole 102 to perform two-way air guide operation.
[0030] The protective ring 203 is fixedly connected to the extension body 201 and is located on the outer surface of the extension body 201. The protective groove 204 is fixedly connected to the protective ring 203 and is located inside the protective ring 203. The protective ring 203 is the main component for protecting the plug body 101, and the protective groove 204 is the main component for enhancing the protective effect of the protective ring 203.
[0031] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.
Claims
1. A two-stage piston structure, comprising a piston body, characterized in that: It also includes a pressure relief sealing assembly, which includes a two-stage hole, a limiting body and a pressure relief body. The two-stage hole is fixedly connected to the plug body and is located inside the plug body. The limiting body is fixedly connected to the plug body and is located at the external center of the plug body. The pressure relief body is fixedly connected to the plug body and is located at the external upper end of the plug body.
2. The two-stage piston structure according to claim 1, characterized in that: The pressure relief sealing assembly also includes a restriction ring and a film ring. The restriction ring is fixedly connected to the restriction body and is located on the outer surface of the restriction body. The film ring is detachably connected to the pressure relief body and is located above the outside of the pressure relief body.
3. The two-stage piston structure according to claim 2, characterized in that: The pressure relief sealing assembly also includes a sealing ring, a pressure relief ring and a pressure relief groove. The sealing ring is fixedly connected to the pressure relief body and is located on a side of the pressure relief body away from the film ring. The pressure relief ring is fixedly connected to the pressure relief body and is located on a side of the pressure relief body close to the sealing ring. The pressure relief groove is fixedly connected to the pressure relief body and is located on an inner side of the pressure relief body close to the sealing ring.
4. The two-stage piston structure according to claim 3, characterized in that: The two-stage piston structure also includes an extension protection component, which includes an extension body and an extension hole. The extension body is fixedly connected to the plug body and is located above the plug body. The extension hole is fixedly connected to the extension body and is located inside the extension body. The extension hole is arranged on one side of the extension body close to the two-stage hole.
5. The two-stage piston structure according to claim 4, characterized in that: The extension protection assembly also includes a protection ring and a protection groove. The protection ring is fixedly connected to the extension body and is located on the outer surface of the extension body. The protection groove is fixedly connected to the protection ring and is located inside the protection ring.