Novel piston

By using a piston design formed by stamping metal sheets, combined with a hollow cylinder rod structure and detachable connection, the problems of heavy piston weight, high cost, and jamming are solved, achieving lightweight and smooth operation.

CN223868282UActive Publication Date: 2026-02-03LAIZHOU HUWEI MASCH TECH CO LTD
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Patent Information

Application Number
CN202520333297.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-03
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing pistons are heavy, have high production costs, low strength, and are prone to jamming. Existing cylinder rod designs are heavy and not smooth.

Method used

The piston is made of metal sheet by stamping, and has a sealing groove and a retaining edge. It has an inner hole reinforcing boss in the center. The cylinder rod is hollow and is connected by internal and external threads to achieve a detachable connection.

Benefits of technology

The overall weight of the piston and cylinder rod is reduced, production costs are lowered, smooth return to position is ensured, jamming is avoided, and loading and unloading efficiency is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a novel piston, and belongs to the technical field of pneumatic pistons for gas cap oil brake pumps, the novel piston comprises a piston, a sealing groove and a flange are arranged on the piston, and an inner hole reinforcing boss is arranged in the center of the piston. The stability of connection between the piston and the oil cylinder rod is enhanced through the inner hole reinforcing boss, the overall weight of the piston and the oil cylinder rod is effectively reduced through the hollow structure of the oil cylinder rod, the production cost is effectively reduced, quick assembly and disassembly are facilitated, smooth return in application is ensured, and the jamming condition is avoided.
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Description

Technical Field

[0001] This utility model relates to a novel piston, belonging to the technical field of pneumatic pistons for air-operated hydraulic brake pumps. Background Technology

[0002] The piston is a core component of a pneumatic system, and its design and maintenance directly affect system performance and service life. Pistons are typically made of high-strength steel, aluminum alloy, or cast iron. Cylinder rods are made of high-strength steel, and seals are usually made of rubber or polyurethane, requiring oil resistance, high temperature resistance, and wear resistance. Most existing pistons are made of cast aluminum, which is heavy, has high production costs, low strength, and suffers from casting porosity and sand holes. Current cylinder rods are solid designs, which are also heavy and expensive. After equipment installation, they do not return smoothly and are prone to jamming. Therefore, developing a new type of piston is crucial. Utility Model Content

[0003] This invention addresses the shortcomings of the existing technology by providing a novel piston.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A novel piston includes a piston having a sealing groove and a retaining edge, and an inner hole reinforcing boss having a center on the piston.

[0006] Furthermore, the piston is formed by stamping a metal sheet.

[0007] Furthermore, the piston has a connecting inner hole at its center.

[0008] Furthermore, the connecting inner hole is provided with threads.

[0009] Furthermore, the piston is provided with a detachably connected cylinder rod.

[0010] Furthermore, the cylinder rod has a hollow structure.

[0011] Furthermore, one end of the cylinder rod is provided with an internal thread, and the other end is provided with an external thread.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the piston structure of this application is lighter in weight, the sealing element is installed through the sealing groove, the sealing element is limited by the retaining edge, the inner hole reinforcing boss strengthens the stability of the connection with the cylinder rod, and the hollow structure of the cylinder rod more effectively reduces the overall weight of the piston and cylinder rod, effectively reducing production costs, facilitating quick loading and unloading, ensuring smooth return in application, and avoiding jamming. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the piston structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the cylinder rod structure of this utility model.

[0016] In the diagram, 1 is the cylinder rod; 2 is the internal thread; 3 is the external thread; 4 is the piston; 5 is the sealing groove; 6 is the flange; and 7 is the inner hole reinforcing boss. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0018] like Figures 1-3 As shown, a novel piston includes a piston 4, which has a sealing groove 5 and a retaining edge 6. The piston 4 also has an inner bore reinforcing boss 7 at its center. This design effectively reduces the weight of the piston 4 and lowers production costs. The sealing groove 5 is used to install a seal, the retaining edge 6 is used to define the seal, and the inner bore reinforcing boss 7 ensures a stable connection with the cylinder rod 1.

[0019] The piston 4 is formed by stamping a metal sheet. This effectively reduces production costs and ensures product quality. Stamping effectively avoids the problems of porosity and sand holes associated with casting.

[0020] The piston 4 has a connecting inner hole at its center.

[0021] The connecting inner hole is threaded.

[0022] The piston 4 is equipped with a detachably connected cylinder rod 1.

[0023] The cylinder rod 1 has a hollow structure. This hollow structure effectively reduces the product's weight and cost, ensures smooth return during application, and prevents jamming.

[0024] The cylinder rod 1 has an internal thread 2 at one end and an external thread 3 at the other end. This allows for a detachable connection between the internal thread 2 and the plug, and a detachable connection between the external thread 3 and the piston 4.

[0025] The piston structure of this application is lightweight. The seal is installed through the sealing groove 5 and the seal is limited by the flange 6. The inner hole reinforcing boss 7 strengthens the stability of the connection with the cylinder rod 1. The hollow structure of the cylinder rod 1 further reduces the overall weight of the piston 4 and the cylinder rod 1, effectively reducing production costs, facilitating quick installation and removal, ensuring smooth return in application, and avoiding jamming.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel piston, comprising a piston (4), characterized in that: The piston (4) is provided with a sealing groove (5) and a retaining edge (6), and the piston (4) is provided with an inner hole reinforcing boss (7) at the center.

2. The novel piston according to claim 1, characterized in that: The piston (4) is formed by stamping metal sheet.

3. The novel piston according to claim 1 or 2, characterized in that: The piston (4) has a connecting inner hole at its center.

4. The novel piston according to claim 3, characterized in that: The connecting inner hole is threaded.

5. The novel piston according to claim 1 or 2, characterized in that: The piston (4) is provided with a detachably connected cylinder rod (1).

6. The novel piston according to claim 5, characterized in that: The cylinder rod (1) has a hollow structure.

7. The novel piston according to claim 6, characterized in that: The cylinder rod (1) has an internal thread (2) at one end and an external thread (3) at the other end.