Front piston outer cylinder check ring assembly
By introducing a buffer ring and a skeleton into the front piston outer cylinder retaining ring assembly, the torsion problem during assembly was solved, the accuracy and stability of the structure were improved, and the dimensional tolerance requirements were met.
Patent Information
- Application Number
- CN202520752618.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-21
AI Technical Summary
The existing air spring front piston outer cylinder retaining ring structure of new energy vehicles is made of pure plastic, which makes it easy to twist during assembly and has insufficient dimensional accuracy, failing to meet tolerance requirements.
Design a front piston outer cylinder retaining ring assembly, including a buffer ring, a skeleton, and an O-ring. The buffer ring increases friction and buffer space, improving assembly stability, while the skeleton improves dimensional accuracy.
The problem of torsion during assembly was solved, the accuracy and stability of the structure were improved, and the tolerance requirements of the drawings were met.
Smart Images
Figure CN223854736U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to air spring technical field, in particular to a front piston outer tube check ring subassembly. BACKGROUND
[0002] The prior art new energy automobile air spring front piston outer tube check ring structure is a pure plastic piece without rubber pad, and torsion phenomenon is prone to occur during assembly and use, and important size engineering capability is insufficient and cannot meet the tolerance requirement of drawings. Therefore, we need to design a new structure and high-precision air spring front piston outer tube check ring subassembly to meet customer demand. SUMMARY
[0003] In view of the problems mentioned in the background art, the utility model aims to provide a front piston outer tube check ring subassembly to solve the problems mentioned in the background art.
[0004] The above technical purpose of the utility model is realized through the following technical scheme:
[0005] A front piston outer tube check ring subassembly, comprising a shock absorber and a piston outer tube, a buffer ring is installed between the bottom end of the piston outer tube and the outer wall of the shock absorber.
[0006] Preferably, a framework is installed on the inner wall of the bottom end of the piston outer tube, and a tray is installed on the shock absorber in the axial direction, and the buffer ring is installed between the tray and the shock absorber.
[0007] Preferably, the bottom end of the framework is fixedly connected to the top end of the buffer ring.
[0008] Preferably, the outer side wall of the framework is fixedly connected to the inner wall of the bottom end of the piston outer tube.
[0009] Preferably, it further comprises a dust cover, and the framework is fixedly connected to the inner wall of the bottom end of the dust cover and the connection is sealed.
[0010] Preferably, it further comprises an O-ring, and the O-ring is installed between the outer wall of the shock absorber and the inner wall of the piston outer tube.
[0011] The utility model designs a front piston outer tube check ring subassembly, which increases the friction between part two through the buffer ring, solves the torsion phenomenon during movement after assembly; when the size precision of the framework is high, the buffer ring provides a certain buffer interval, increases the precision and stability of the structure.
[0012] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1A perspective view of a front piston outer cylinder check ring assembly is provided in the utility model.
[0014] Figure 2 A front piston outer cylinder check ring assembly is provided in the utility model.
[0015] Figure 3 For Figure 2 A sectional view along the A-A direction.
[0016] Reference signs: 1, dust cover; 2, shock absorber; 3, buffer ring; 4, skeleton; 5, O-ring; 6, tray; 7, piston outer cylinder. DETAILED DESCRIPTION
[0017] The embodiments of the utility model are described in detail below, and the examples of the embodiments are represented in the drawings, wherein the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model and cannot be understood as a limitation on the utility model.
[0018] Embodiment 1
[0019] Reference Figures 1 to 3 The front piston outer cylinder check ring assembly described in the embodiment comprises a dust cover 1, a shock absorber 2 and a piston outer cylinder 7, and the buffer ring 3 is installed between the bottom end of the piston outer cylinder 7 and the outer wall of the shock absorber 2.
[0020] Preferably, the piston outer cylinder 7 is made of aluminum profile.
[0021] Specifically, the skeleton 4 is installed on the inner wall of the bottom end of the piston outer cylinder 7, the bottom end of the skeleton 4 is fixedly connected with the top end of the buffer ring 3, the tray 6 is installed on the shock absorber 2 in the axial direction, and the buffer ring 3 is installed between the tray 6 and the shock absorber 2.
[0022] Preferably, the skeleton 4 is in the shape of a grass hat without a top, the inner side wall of the skeleton 4 is fixedly connected with the outer wall of the shock absorber 2, and the outer side wall of the skeleton 4 is fixedly connected with the inner wall of the bottom end of the piston outer cylinder 7.
[0023] The skeleton 4 is fixedly connected with the inner wall of the bottom end of the dust cover 1 and the connection is sealed.
[0024] Preferably, the skeleton 4 is made of plastic, the buffer ring 3 is made of rubber, the bottom end of the skeleton 4 is coated with glue, and the rubber pad is integrally vulcanized and bonded with the plastic skeleton 4.
[0025] Further comprising an O-ring 5, which is installed between the outer wall of the shock absorber 2 and the inner wall of the piston outer cylinder 7.
[0026] The O-ring 5 is located above the skeleton 4 and is used for sealing between the piston and the shock absorber 2.
[0027] The buffer ring 3 increases the friction between the frame 4 and the tray 6, solving the problem of easy torsion during movement after assembly; when the dimensional accuracy of the frame 4 is required to be high, the buffer ring 3 provides a certain buffer space to increase the accuracy and stability of the structure.
[0028] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A front piston outer tube retainer assembly comprising a shock absorber (2) and a piston outer tube (7), characterized in that: The buffer ring (3) is installed between the bottom end of the piston outer cylinder (7) and the outer wall of the shock absorber (2).
2. The front piston outer barrel retainer ring assembly of claim 1, wherein: The skeleton (4) is installed on the inner wall of the bottom end of the piston outer cylinder (7), and the tray (6) is installed on the shock absorber (2) in the axial direction, and the buffer ring (3) is installed between the tray (6) and the shock absorber (2).
3. The front piston outer barrel retainer ring assembly of claim 2, wherein: The bottom end of the skeleton (4) is fixedly connected with the top end of the buffer ring (3).
4. The front piston outer barrel retainer ring assembly of claim 2, wherein: The outer side wall of the skeleton (4) is fixedly connected with the inner wall of the bottom end of the piston outer cylinder (7).
5. The front piston outer barrel retainer ring assembly of claim 2, wherein: The dust cover (1) is further included, the skeleton (4) is fixedly connected with the inner wall of the bottom end of the dust cover (1), and the connection part is sealed.
6. The front piston outer barrel retainer assembly of any one of claims 1-5, wherein: The O-shaped ring (5) is further included, and the O-shaped ring (5) is installed between the outer wall of the shock absorber (2) and the inner wall of the piston outer cylinder (7).