Split type air spring piston body
By designing the split air spring piston body, using the material of plastic instead of aluminum instead of steel and the injection molding process of molding, the problems of complex structure and heavy weight in the existing technology are solved, and the production efficiency and product performance are improved.
Patent Information
- Application Number
- CN202420930070.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing air spring rolling piston has a complex structure and needs to be assembled, resulting in complex production processes and inefficient efficiency. At the same time, the main structure uses steel or alloy materials, which increases weight and fuel consumption.
A split air spring piston body is designed, using plastic instead of aluminum instead of steel, and is injection molded by molding, reducing the post-assembly process, and the assembly is achieved through snap structure and positioning pin design.
It achieves an improvement in production efficiency, reduces weight and fuel consumption, and ensures the high-temperature and high-pressure performance of the product and the overall sealing and strength requirements.
Smart Images
Figure CN222732012U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of auto parts, in particular to a split air spring piston body. Background Art
[0002] The air spring rolling piston assembly is an important component of the air spring assembly. After searching, an air spring with an elastic air spring corrugated airbag with application number CN2021900008261 is found, in which the air spring corrugated airbag is sealingly connected to the air spring cover at its first open end and is sealingly connected to the air spring piston at its second open end. A conical sealing seat and a radially circumferential retaining lug can be easily formed in the material as needed, because the piston shoulder attachment can be assembled in subsequent working steps.
[0003] Although the device has the above advantages, it still has the following defects in actual use: first, the structure of the device is complex and needs to be assembled after production, which increases the production process and reduces production efficiency. Secondly, the main structure of the device is made of steel or alloy material, which increases the weight of the main body and increases fuel consumption. Therefore, it is necessary to solve the problems that still exist in the above device. Utility Model Content
[0004] In view of the shortcomings of the prior art, the utility model provides a split air spring piston body, which solves the problems of the existing air spring rolling piston, which has a complex structure and needs to be assembled, resulting in a complicated production process and low efficiency. At the same time, the main structure is made of steel and alloy materials, thereby improving the quality and fuel consumption.
[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a split air spring piston body, including a rolling piston body, the outer sleeve of the rolling piston body is provided with two rolling piston shells, the outer surfaces of the two rolling piston shells fit each other, one side of the outer surface of the rolling piston body is fixedly connected with a steel ring support ring, the other side of the outer surface of the rolling piston body is embedded with a metal nut, the other side of the outer surface of the rolling piston body is fixedly connected with a metal locating pin, the two rolling piston shells are positioned by installing locating pins and locating grooves, and are clamped on the rolling piston body through a snap-fit structure to form an outer circle to protect the inside of the piston, the installing locating pin is fixedly set on the rolling piston body, and the locating groove is opened on the rolling piston shell.
[0006] Preferably, the buckle structure comprises a clamping groove, the clamping groove is provided on the outer shell of the rolling piston, a clamping column is clamped inside the clamping groove, and the clamping column is fixedly arranged on the rolling piston body.
[0007] Preferably, a clamping plate is clamped on the outside of the clamping column, and the clamping plates are respectively arranged on both sides of the inside of the clamping slot.
[0008] Preferably, the metal locating pin, steel ring support ring and metal nut are integrally injection molded on the rolling piston body through a mold, and the mounting locating pin and clamping column are made of plastic instead of steel and are integrally injection molded on the rolling piston body through a mold.
[0009] Preferably, the two rolling piston shells and the rolling piston body are made of plastic instead of aluminum or steel, the two clamping plates are made of plastic instead of steel, and are integrally injection-molded on the rolling piston shell together with the clamping groove through a mold.
[0010] Beneficial Effects
[0011] The utility model provides a split air spring piston body. Compared with the prior art, it has the following beneficial effects:
[0012] The utility model uses plastic instead of aluminum instead of steel, and is light in weight; it is easy to install and ensures the air spring rolling piston assembly effect; the airbag end is injection-molded and embedded in the steel ring support ring to ensure that the product does not fall off or creep under high temperature and high pressure, and meets the overall sealing and strength requirements of the air spring. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is the front view of the external structure of the utility model;
[0014] Figure 2 It is a top view of the internal structure of the utility model.
[0015] In the figure: 1. rolling piston body; 2. rolling piston shell; 3. steel ring support ring; 4. metal locating pin; 5. metal nut; 6. installation locating pin; 7. locating groove; 8. clamping groove; 9. clamping column; 10. clamping plate. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1-2 The utility model provides a technical solution: a split air spring piston body:
[0018] Embodiment 1:
[0019] It includes a rolling piston body 1, which is made of PA66+GF50 material through injection molding. Two rolling piston shells 2 are arranged on the outside of the rolling piston body 1. The rolling piston shells 2 are made of PA66+GF50 material through injection molding. The outer surfaces of the two rolling piston shells 2 fit each other. A steel ring support ring 3 is fixedly connected to one side of the outer surface of the rolling piston body 1, and a metal nut 5 is embedded and fixedly connected to the other side of the outer surface of the rolling piston body 1. A metal locating pin 4 is fixedly connected to the other side of the outer surface of the rolling piston body 1. The two rolling piston shells 2 are positioned by installing a locating pin 6 and a locating groove 7, and are snapped onto the rolling piston body 1 through a snap-fit structure to form an outer circle, protect the inside of the piston, and enhance the strength of the piston. The locating pin 6 is fixedly arranged on the rolling piston body 1, and the locating groove 7 is opened on the rolling piston shell 2.
[0020] Embodiment 2:
[0021] The buckle structure includes a slot 8 which is provided on the rolling piston housing 2 . A post 9 is clamped inside the slot 8 . The post 9 has a T-shaped cross section to improve the stability of the connection. The post 9 is fixedly arranged on the rolling piston body 1 .
[0022] The outside of the clamping column 9 is clamped with a clamping plate 10 , which limits the T-shaped end of the clamping column 9 to achieve connection and fixation of the rolling piston housing 2 . The clamping plates 10 are respectively arranged on both sides of the inside of the clamping groove 8 .
[0023] The metal locating pin 4, the steel ring support ring 3, and the metal nut 5 are integrally injection molded on the rolling piston body 1, and the steel ring support ring 3 is embedded in the airbag end of the air spring through an injection molding process. The installation locating pin 6 and the clamping column 9 are both made of plastic instead of steel and are integrally injection molded on the rolling piston body 1 through a mold, thereby reducing the post-assembly process and reducing the production cost.
[0024] The two rolling piston shells 2 and the rolling piston body 1 are made of plastic instead of aluminum or steel, and the two clamping plates 10 are made of plastic instead of steel, and are integrally injection molded on the rolling piston shell 2 together with the clamping slot 8 through a mold, thereby reducing the post-assembly process and reducing the production cost.
[0025] Embodiment 3: This embodiment is obtained by combining embodiments 1 and 2. The utility model uses plastic instead of aluminum instead of steel, and is light in weight. It is easy to install and ensures the effect of the air spring rolling piston assembly. The airbag end is injection-molded and embedded in the steel ring support ring 3 to ensure that the product does not fall off or creep under high temperature and high pressure, and meets the overall sealing and strength requirements of the air spring.
[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A split air spring piston body, comprising a rolling piston body (1), characterized in that: The outer sleeve of the rolling piston body (1) is provided with two rolling piston shells (2), the outer surfaces of the two rolling piston shells (2) are fitted with each other, one side of the outer surface of the rolling piston body (1) is fixedly connected with a steel ring support ring (3), the other side of the outer surface of the rolling piston body (1) is embedded with a metal nut (5), and the other side of the outer surface of the rolling piston body (1) is fixedly connected with a metal positioning pin (4). The two rolling piston shells (2) are positioned by installing positioning pins (6) and positioning grooves (7), and are snap-fitted to the rolling piston body (1) through a snap-fit structure to form an outer circle to protect the inside of the piston. The installing positioning pin (6) is fixedly arranged on the rolling piston body (1), and the positioning groove (7) is provided on the rolling piston shell (2).
2. The split air spring piston body according to claim 1, characterized in that: The buckle structure comprises a clamping groove (8), wherein the clamping groove (8) is provided on the rolling piston housing (2), a clamping column (9) is clamped inside the clamping groove (8), and the clamping column (9) is fixedly arranged on the rolling piston body (1).
3. The split air spring piston body according to claim 2, characterized in that: The outside of the clamping column (9) is clamped with a clamping plate (10), and the clamping plates (10) are respectively arranged on two sides of the inside of the clamping slot (8).
4. The split air spring piston body according to claim 2, characterized in that: The metal positioning pin (4), the steel ring support ring (3), and the metal nut (5) are integrally molded on the rolling piston body (1) through a mold, and the mounting positioning pin (6) and the clamping column (9) are both made of plastic instead of steel and integrally molded on the rolling piston body (1) through a mold.
5. The split air spring piston body according to claim 3, characterized in that: The two rolling piston shells (2) and the rolling piston body (1) are made of plastic instead of aluminum or steel, and the two clamping plates (10) are made of plastic instead of steel, and are integrally injection-molded on the rolling piston shell (2) together with the clamping groove (8) through a mold.