Air spring positioning ring low in cost, light in weight and easy to install

Abstract

The utility model relates to the technical field of air spring positioning rings, and discloses an air spring positioning ring which is low in cost, light in weight and easy to install and comprises a positioning ring shell, a connecting ring is integrally formed on the upper side of the positioning ring shell, and a second sealing plane is integrally formed at the lower end of the positioning ring shell. A positioning boss is fixedly arranged at the lower end of the second sealing plane, a plurality of second hollow cavities are formed in the inner side of the positioning ring shell, the inner side of the connecting ring and the inner side of the second sealing plane, and the second hollow cavities are distributed on the inner side of the positioning ring shell at equal intervals according to the circumference. According to the utility model, the wall thickness of the shell is uniformly thinned by the structure, and the integrated injection molding process of plastic materials is matched, so that the injection molding cooling time is effectively shortened, the production efficiency is obviously improved, and the energy consumption is reduced. The design of the second hollow cavity with the right trapezoid section further optimizes stress distribution, the sink mark defect caused by sudden change of the wall thickness is avoided, and light weight and forming quality are both considered.

Description

Technical Field

[0001] This utility model relates to the field of air spring positioning ring technology, and in particular to a low-cost, lightweight, and easy-to-install air spring positioning ring. Background Technology

[0002] As a key component of the vehicle suspension system, the air spring locating ring's performance directly affects the air spring's sealing performance, load-bearing capacity, and assembly efficiency. Traditional locating rings are mostly made of metal or solid plastic, resulting in high material costs, heavy weight, and complex molding processes. Especially in the automotive industry, where lightweighting is increasingly urgent, traditional metal locating rings struggle to meet energy conservation and emission reduction requirements. While existing plastic locating rings can reduce weight to some extent, their unreasonable structural design leads to excessive wall thickness, long injection molding cooling times, and low production efficiency. These problems restrict the performance optimization and cost control of the air spring assembly, necessitating an innovative structure that balances lightweight design, low cost, and ease of assembly. Therefore, we propose a low-cost, lightweight, and easy-to-install air spring locating ring. Utility Model Content

[0003] The present invention aims to solve the technical problems existing in the prior art and provide a low-cost, lightweight and easy-to-install air spring positioning ring.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a low-cost, lightweight, and easy-to-install air spring positioning ring, comprising a positioning ring housing, a connecting ring integrally formed on the upper side of the positioning ring housing, a second sealing plane integrally formed on the lower end of the positioning ring housing, a positioning boss fixedly provided on the lower end of the second sealing plane, a second hollow cavity opened on the inner side of the positioning ring housing, the connecting ring, and the second sealing plane, a plurality of the second hollow cavities being distributed equidistantly on the inner side of the positioning ring housing, and a first hollow cavity opened on the inner side of the connecting ring corresponding to the upper part of the second hollow cavity.

[0005] Preferably, the positioning boss is a rectangular block, and a third hollow cavity is formed at the bottom of the positioning boss, which extends into the interior of the second sealing plane. The third hollow cavity is a rectangular cavity.

[0006] Preferably, the positioning ring housing has a cross-section of a right-angled trapezoidal ring, and the second hollow cavity has a hollow body in the shape of a right-angled trapezoid.

[0007] Preferably, the connecting ring is a circular ring with a rectangular cross-section, and a connecting groove is provided on the outer side of the connecting ring.

[0008] Preferably, the positioning ring housing and the positioning boss are integrally formed, and the bottom edge of the positioning boss is provided with an arc-shaped chamfer.

[0009] Preferably, the upper end of the connecting ring is integrally formed with a first sealing plane, which is a ring with a rectangular cross-section.

[0010] Preferably, the positioning ring housing, connecting ring, first sealing plane and second sealing plane are all made of plastic material. Beneficial effects

[0011] This invention provides a low-cost, lightweight, and easy-to-install air spring positioning ring. It offers the following advantages:

[0012] (1) This low-cost, lightweight, and easy-to-install air spring positioning ring forms a multi-layer hollow structure through the circumferentially distributed second and first hollow cavities designed on the inner side of the positioning ring shell, connecting ring, and sealing plane. This significantly reduces material usage and weight while ensuring load-bearing strength. This structure allows for uniform thinning of the shell wall thickness. Combined with the one-piece injection molding process of plastic material, it effectively shortens the injection cooling time, significantly improves production efficiency, and reduces energy consumption. The right-angled trapezoidal cross-section of the second hollow cavity further optimizes stress distribution, avoids shrinkage defects caused by abrupt changes in wall thickness, and balances lightweight design with molding quality.

[0013] (2) This low-cost, lightweight, and easy-to-install air spring positioning ring features a rectangular third hollow cavity at the bottom of the positioning boss with an interference fit design. This allows the boss to undergo elastic deformation under pressure during installation, reducing insertion resistance and enhancing its resistance to detachment after assembly. Simultaneously, the hollow structure formed by the second hollow cavity reduces the contact area between the positioning ring and the piston rod, and, combined with the arc-shaped chamfer guide at the bottom of the positioning boss, enables rapid alignment and installation. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side sectional view of the present invention;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Legend:

[0020] 1. Positioning ring housing; 2. Connecting ring; 3. First sealing plane; 4. Second sealing plane; 5. First hollow cavity; 6. Second hollow cavity; 7. Connecting groove; 8. Positioning boss; 9. Chamfer; 10. Third hollow cavity. Detailed Implementation

[0021] 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.

[0022] like Figures 1-3 As shown, a low-cost, lightweight, and easy-to-install air spring positioning ring includes a positioning ring housing 1. A connecting ring 2 is integrally formed on the upper side of the positioning ring housing 1. A second sealing plane 4 is integrally formed on the lower end of the positioning ring housing 1. A positioning boss 8 is fixedly provided at the lower end of the second sealing plane 4. A second hollow cavity 6 is formed inside the positioning ring housing 1, the connecting ring 2, and the second sealing plane 4. Several second hollow cavities 6 are distributed equidistantly around the circumference of the positioning ring housing 1. A first hollow cavity 5 is formed above the second hollow cavity 6 on the inner side of the connecting ring 2. The positioning boss 8 allows for quick installation of the second sealing plane 4. The second hollow cavity 6 and the first hollow cavity 5 inside the plane 4 and the connecting ring 2 reduce the overall weight, material consumption and product weight, thus achieving a lightweight effect. During assembly, the hollow structure created by the first hollow cavity 5 and the second hollow cavity 6 reduces the contact area with the piston rod, making it easier to install and position. The upper end of the connecting ring 2 is integrally formed with a first sealing plane 3, which is a circular ring with a rectangular cross-section. The first sealing plane 3 ensures the sealing of the upper end of the connecting ring 2. The positioning ring housing 1, the connecting ring 2, the first sealing plane 3 and the second sealing plane 4 are all made of plastic material. The connecting ring 2 is a circular ring with a rectangular cross-section, and a connecting groove 7 is opened on the outer side of the connecting ring 2.

[0023] The positioning boss 8 is a rectangular block. The bottom end of the positioning boss 8 is provided with a third hollow cavity 10. The third hollow cavity 10 extends into the interior of the second sealing plane 4. The third hollow cavity 10 is a rectangular cavity. During the installation process, the positioning boss 8 and the mounting hole of the fixing seat are provided with a certain interference. The positioning boss 8 is deformed by compression, which ensures easy installation and prevents it from falling off.

[0024] The positioning ring housing 1 is a right-angled trapezoidal ring in cross-section, and the second hollow cavity 6 is a right-angled trapezoidal hollow cavity. The overall thickness is reduced by the first hollow cavity 5 and the second hollow cavity 6, which shortens the injection molding cooling time, improves production efficiency, and reduces costs. The positioning ring housing 1 and the positioning boss 8 are integrally molded structures. The bottom edge of the positioning boss 8 is provided with an arc-shaped chamfer 9. The chamfer 9 at the bottom of the positioning boss 8 facilitates better insertion of the positioning boss 8 into the mounting hole of the fixing seat.

[0025] The working principle of this utility model:

[0026] During assembly, the chamfered corner 9 at the bottom of the positioning boss 8 first contacts the mounting hole of the fixed seat, serving as a guide and reducing initial insertion resistance. Because the positioning boss 8 has a rectangular third hollow cavity 10 inside, and is designed with an interference fit with the mounting hole, the boss absorbs the compressive force through the elastic deformation of the third hollow cavity 10 after being compressed, causing the outer wall of the boss to tightly adhere to the inner wall of the mounting hole, forming an elastic snap-fit. Simultaneously, the hollow structure formed by the second hollow cavity 6 inside the positioning ring housing 1 and the first hollow cavity 5 of the connecting ring 2 reduces the contact area with the piston rod, lowering frictional resistance. Combined with the inclined surface guidance of the right-angled trapezoidal housing section, rapid alignment and installation are achieved. After installation, the first sealing plane 3 at the upper end and the second sealing plane 4 at the lower end of the connecting ring 2 press against the upper and lower components of the air spring, respectively. The dual-plane design forms a double sealing interface through evenly distributed pressure, avoiding the risk of leakage caused by localized stress concentration. When the air spring is inflated and compressed, the right-angled trapezoidal section of the positioning ring housing 1 converts the vertical load into a radial expansion force, which is then evenly distributed through the circumferentially distributed second hollow cavity 6 to prevent the housing from deforming. Meanwhile, the one-piece molded plastic material utilizes its elastic modulus characteristics to produce slight deformation when subjected to dynamic loads, further conforming to the sealing surface and improving long-term sealing reliability.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A low-cost, lightweight, and easy-to-install air spring positioning ring, comprising a positioning ring housing (1), wherein a connecting ring (2) is integrally formed on the upper side of the positioning ring housing (1), characterized in that: The lower end of the positioning ring housing (1) is integrally formed with a second sealing plane (4), and the lower end of the second sealing plane (4) is fixedly provided with a positioning boss (8). The positioning ring housing (1), the connecting ring (2), and the second sealing plane (4) are provided with a second hollow cavity (6). There are several second hollow cavities (6) and they are distributed equidistantly on the inner side of the positioning ring housing (1) in a circular pattern. The inner side of the connecting ring (2) is provided with a first hollow cavity (5) above the second hollow cavity (6).

2. The low-cost, lightweight, and easy-to-install air spring positioning ring according to claim 1, characterized in that: The positioning boss (8) is a rectangular block, and a third hollow cavity (10) is provided at the bottom end of the positioning boss (8). The third hollow cavity (10) extends into the interior of the second sealing plane (4). The third hollow cavity (10) is a rectangular cavity.

3. The low-cost, lightweight, and easy-to-install air spring positioning ring according to claim 1, characterized in that: The positioning ring housing (1) has a cross-section of a right trapezoidal ring, and the second hollow cavity (6) is a right trapezoidal hollow cavity.

4. The low-cost, lightweight, and easy-to-install air spring positioning ring according to claim 1, characterized in that: The connecting ring (2) is a circular ring with a rectangular cross-section, and a connecting groove (7) is provided on the outer side of the connecting ring (2).

5. The low-cost, lightweight, and easy-to-install air spring positioning ring according to claim 1, characterized in that: The positioning ring housing (1) and the positioning boss (8) are integrally formed structures, and the bottom edge of the positioning boss (8) is provided with an arc-shaped chamfer (9).

6. The low-cost, lightweight, and easy-to-install air spring positioning ring according to claim 1, characterized in that: The upper end of the connecting ring (2) is integrally formed with a first sealing plane (3), which is a ring with a rectangular cross-section.

7. A low-cost, lightweight, and easy-to-install air spring positioning ring according to claim 6, characterized in that: The positioning ring housing (1), connecting ring (2), first sealing plane (3), and second sealing plane (4) are all made of plastic material.

Images