Dust cover fixing support of air spring

Abstract

According to the dust cover fixing support of the air spring, the side edge structures on the two sides of the support body are attached to the peripheral face of an aluminum protective cylinder, and ventilation design is provided; the problems that due to machining quality control defects or temperature changes of a working environment and the like, the sealing condition of the contact face between a support body and an attached and fixed aluminum protective cylinder is changed, and a ventilation structure at the position of a dust cover support loses efficacy or the fixing and supporting effect of the support loses efficacy are solved. Bonding boss structures integrated with the side edge structures are arranged between the side edge structures used for forming the ventilation structure of the support body, support between the side edge structures and the aluminum pile casing is increased through the bonding boss structures, and the shape of the top end face of each bonding boss structure can be matched with the peripheral face of the aluminum pile casing in a concave-convex mode. Therefore, it is guaranteed that the bonding boss structure can play a good supporting role to guarantee the ventilation capacity of the support, and the attaching fixing strength of the support body and the aluminum pile casing can be improved through the attaching area increased by the bonding boss structure.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and more specifically, to a dust cover fixing bracket for an air spring. Background Technology

[0002] An air spring is a sealed container filled with compressed air, utilizing the compressibility of gas to achieve its elastic effect. Air springs possess ideal non-linear elastic characteristics; with the addition of a height adjustment device, the vehicle height does not change with load variations, and the spring stiffness can be designed to be lower, resulting in good ride comfort. However, existing air springs suffer from insufficient airflow due to structural design, leading to unstable airbag contraction during operation. To address this, a fixed bracket is needed to control the airflow. This bracket is installed on the outer circumference of one end of the airbag and secured with clamps on its outer edge, serving both to control airflow and to fix the dust cover.

[0003] The mounting bracket has vents and inlets on both sides and needs to operate throughout its lifespan in an environment with a room temperature range of 20℃-150℃. The bracket must withstand the clamping pressure from the clamps and maintain good working condition at room temperature. Considering that the bracket operates at room temperature, it is prone to shrinkage and cavity shrinkage over long periods, affecting the airflow through the vents. Furthermore, the manufacturing process of the bracket is often difficult to monitor, and the injection molding process is easily affected by temperature, posing a significant risk of deformation. This further increases the risk of affecting the airflow capacity of the bracket.

[0004] In summary, existing dust cover brackets for automotive air springs have a technical problem: the bracket structure is prone to deformation, which affects the airflow of the air spring. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the dust cover bracket for existing automotive air springs is prone to deformation, which affects the air flow of the air spring.

[0006] To address the aforementioned problems, this utility model provides a dust cover fixing bracket for an air spring, comprising a bracket body with a circular ring structure. The inner circumferential surface of the bracket body is fitted with an aluminum protective sleeve of the air spring, and the outer circumferential surface of the bracket body is fitted and fixed to the inner edge surface of the air spring dust cover. Both the upper and lower sides of the inner circumferential surface of the bracket body are provided with protruding side ribs. The side ribs are arc-shaped, with their length direction parallel to the length direction of the bracket body. The side ribs have notches, and the space between the notches and the inner side of the aluminum protective sleeve is used for air intake and exhaust. The inner circumferential surface of the bracket body also has an adhesive boss structure. The top surface of the adhesive boss structure is a concave arc surface that mates with the aluminum protective sleeve. The protrusion height of the adhesive boss structure and the side rib structure are consistent, and the two are integrally connected. The top surface of the adhesive boss structure is fitted and fixed to the outer circumferential surface of the aluminum protective sleeve.

[0007] This design provides a dust cover mounting bracket for an air spring. The side ribs on both sides of the bracket body are used to fit against the outer circumference of the aluminum casing, providing ventilation through these ribs. Specifically, this is achieved by creating notches to allow communication between the two end faces of the bracket body. To prevent changes in the sealing between the bracket body and the fixed aluminum casing due to manufacturing defects or temperature variations in the working environment, which could lead to failure of the ventilation structure or the bracket's fixing and support effects, notches are provided between the side ribs forming the ventilation structure of the bracket body. The integrated adhesive boss structure increases the support between the bracket and the aluminum casing. The shape of the top end face of the adhesive boss structure can form a concave-convex fit with the outer circumference of the aluminum casing. This ensures that the adhesive boss structure can not only provide good support to guarantee the air passage of the bracket, but also increase the bonding strength between the bracket body and the aluminum casing through the increased bonding area. This avoids the failure of the bracket reinforcement effect due to deformation of the bracket body structure, and effectively solves the technical problem of the dust cover bracket of existing automotive air springs being prone to deformation, which affects the air passage of the air spring.

[0008] As a preferred embodiment, both the adhesive boss structure and the side rib structure are integrally injection molded with the bracket body. This design further optimizes the bracket body design. The protruding structure on the inner circumferential surface of the bracket body facing the aluminum casing, namely the adhesive boss structure and the side rib structure, are integrally injection molded with the bracket body, optimizing the bracket's processing and molding design, making molding convenient and cost-effective.

[0009] As a preferred embodiment, a 3M adhesive pad is provided between the top surface of the adhesive boss structure and the aluminum casing. This design optimizes the bonding and fixing method between the adhesive boss structure and the aluminum casing. The two are bonded together using a 3M adhesive pad. The material properties of the 3M pad ensure good bonding performance under normal ambient temperatures ranging from -40℃ to 80℃, and it is easy to implement, simple to operate, and inexpensive to use.

[0010] As a preferred embodiment, the bracket body includes two interlocking semi-rings at their ends, each semi-ring having an adhesive boss structure. This mechanism optimizes the overall design of the bracket body by using two interlocking semi-rings to form a complete ring. This structure is suitable for fixing dust cover brackets and avoids the difficulties in installation and scratches that can easily occur during installation when using a full-ring structure.

[0011] As a preferred embodiment, one end of the semi-ring component is provided with a socket structure, and the other end is provided with a plug structure. The two semi-ring components are connected to form a complete ring through the plug structure and the socket structure. This design optimizes the connection method between the two semi-ring components. Both adopt a design with a plug structure at one end and a socket structure at the other end. The plug at one end of the semi-ring component is plugged into the socket at the other end of the other semi-ring component for mutual fixation. This design is simple in structure, easy to install, and firmly fixed, and is suitable for the elastic material of the bracket body itself.

[0012] As a preferred embodiment, the outer circumferential surface of the support body is provided with an annular groove structure for engaging and fixing with a clamp structure. This design further optimizes the support body design. The annular groove structure on the outer circumference of the support body is recessed inward, forming a concave-convex fit with the clamp that assists in fixing the support body, increasing the tightness of the connection between the support body and the clamp, and preventing the clamp from falling off after being fastened and fixed to the outer edge of the support body.

[0013] As a preferred embodiment, the side ribs on both sides of the support body are evenly distributed with notches at predetermined intervals, and the notches on the side ribs are interconnected within the support body. This design optimizes the structure of the notches on the support body, and the interconnected notches on both sides of the support body ensure good ventilation at the support body location.

[0014] As a preferred embodiment, the aluminum sleeve of the dust cover fixing bracket that fits the air spring has an annular recessed groove structure on its inner edge. The side edge of the bracket body is recessed into the recessed groove structure to form a concave-convex fit. To accommodate the fastening and fixing between the bracket body and the aluminum sleeve, an annular recessed groove structure is provided at the fastening position between the outer periphery of the aluminum sleeve and the bracket body. The size of the recessed groove structure matches the shape of the outer edge of the bracket body, making it less likely for the bracket body to fall off the aluminum sleeve.

[0015] As a preferred embodiment, the width of the sinkhole structure ranges from 18.0mm to 18.4mm, and the width of the support body ranges from 16.0mm to 16.4mm. This design optimizes the size selection of the support body and the sinkhole structure. The optimal choice is a width of 16.2mm for the support body and 18.2mm for the sinkhole structure, ensuring that the distance between the outer edge of the support body and the inner edge of the sinkhole structure on one side is approximately 1mm. This size design ensures both the secure fastening of the support body and ease of installation. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a dust cover fixing bracket for an air spring provided by this utility model;

[0017] Figure 2 for Figure 1 Partial structure of the main body of the dust cover fixing bracket for the air spring;

[0018] Figure 3 for Figure 1 A cross-sectional structural diagram of the installation position of the dust cover fixing bracket for the air spring.

[0019] in, Figures 1-3 middle:

[0020] 1. Side rib structure; 2. Notch structure; 3. Adhesive boss structure; 4. Slot structure; 5. Plug structure; 6. Socket structure; 7. Bracket body; 8. Aluminum protective sleeve; 9. Air spring dust cover; 10. Clamp structure; 11. Sinking structure. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Before providing a detailed explanation of the working principle of this utility model, further clarification is needed regarding its description: In this description, terms such as "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a welded connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] refer to Figures 1-3 The following examples illustrate this. Figure 1 A schematic diagram of the overall structure of a dust cover fixing bracket for an air spring provided by this utility model; Figure 2 for Figure 1 Partial structure of the main body of the dust cover fixing bracket for the air spring; Figure 3 for Figure 1 A cross-sectional structural diagram of the installation position of the dust cover fixing bracket for the air spring.

[0025] The dust cover fixing bracket for the air spring provided in this embodiment includes a bracket body 7 with a circular structure. The aluminum protective sleeve 8 of the air spring is attached to the inner circumferential surface of the bracket body 7. The outer circumferential surface of the bracket body 7 is attached and fixed to the inner edge surface of the air spring dust cover 9. The upper and lower sides of the inner circumferential surface of the bracket body 7 are provided with protruding side rib structures 1. The side rib structure 1 is arc-shaped and its length direction is parallel to the length direction of the bracket body 7. The side rib structure 1 is provided with a notch structure 2. The space between the notch structure 2 and the inner side of the aluminum protective sleeve 8 is used for air intake and exhaust. The inner circumferential surface of the bracket body 7 is also provided with an adhesive boss structure 3. The top surface of the adhesive boss structure 3 is a concave arc surface that matches the aluminum protective sleeve 8. The protrusion height of the adhesive boss structure 3 and the side rib structure 1 are the same. The two are integrally connected. The top surface of the adhesive boss structure 3 is attached and fixed to the outer circumferential surface of the aluminum protective sleeve 8.

[0026] This design provides a dust cover mounting bracket for an air spring. The side ribs 1 on both sides of the bracket body 7 are used to fit against the outer circumference of the aluminum casing 8, and provide ventilation through these side ribs 1. Specifically, this is achieved by setting notches 2 to allow communication between the two end faces of the bracket body 7. To prevent changes in the sealing between the bracket body 7 and the fitted aluminum casing 8 due to manufacturing defects or temperature variations in the working environment, which could cause the ventilation structure at the dust cover bracket position to fail or the bracket's fixing and supporting effect to fail, notches 2 are provided between the side ribs 1 that constitute the ventilation structure of the bracket body 7. The integral bonding boss structure 3 of the rib structure 1 increases the support between the bracket and the aluminum sleeve 8. The shape of the top end face of the bonding boss structure 3 can form a concave-convex fit with the outer peripheral surface of the aluminum sleeve 8. This ensures that the bonding boss structure 3 can not only provide good support to ensure the air passage of the bracket, but also increase the bonding and fixing strength between the bracket body 7 and the aluminum sleeve 8 through the increased bonding area of ​​the bonding boss structure 3. This avoids the failure of the bracket reinforcement effect due to the deformation of the bracket body 7, and effectively solves the technical problem of the dust cover bracket of the existing automotive air spring having a bracket structure that is easy to deform, thus affecting the air passage of the air spring.

[0027] In the technical solution provided in this embodiment, both the bonding boss structure 3 and the side rib structure 1 are integrally injection molded with the bracket body 7. This design further optimizes the design of the bracket body 7. The protruding structures on the inner circumferential surface of the bracket body 7 facing the aluminum casing 8, namely the bonding boss structure 3 and the side rib structure 1, are integrally injection molded with the bracket body 7, optimizing the processing and molding design of the bracket, making molding convenient and cost-effective.

[0028] In the technical solution provided in this embodiment, a 3M adhesive pad is provided between the top surface of the adhesive boss structure 3 and the aluminum casing 8. This design optimizes the bonding and fixing method between the adhesive boss structure 3 and the aluminum casing 8. The two are bonded together using a 3M adhesive pad. The material properties of the 3M pad can ensure a good bonding effect under normal ambient temperatures ranging from -40℃ to 80℃, and it is easy to implement, simple to operate, and inexpensive to use.

[0029] In the technical solution provided in this embodiment, the bracket body 7 includes two semi-ring components that interlock at their ends, and each semi-ring component is provided with an adhesive boss structure 3. This mechanism optimizes the overall design of the bracket body 7, using a design where two semi-rings interlock to form a complete ring. This structure is suitable for the fixing design of dust cover brackets, avoiding the situation where the bracket body 7 with a complete ring structure is difficult to install and is easily scratched during the installation process.

[0030] In the technical solution provided in this embodiment, one end of the semi-ring is provided with a socket structure 6, and the other end is provided with a plug structure 5. The two semi-rings are connected to form a complete ring through the plug structure 5 and the socket structure 6. This design optimizes the connection method between the two semi-rings. Both adopt a design with a plug structure 5 at one end and a socket structure 6 at the other end. The plug at one end of the semi-ring is connected and fixed to the socket at the other end of the other semi-ring. This design is simple in structure, easy to install and firmly fixed, and suitable for the elastic material of the bracket body 7 itself.

[0031] In the technical solution provided in this embodiment, an annular groove structure 4 is provided on the outer peripheral surface of the support body 7 for engaging and fixing with the clamp structure 10. This design further optimizes the design of the support body 7. The annular groove structure 4 is provided on the outer peripheral edge of the support body 7. The groove structure 4 is recessed inward, which can form a concave-convex fit with the clamp that assists in fixing the support body 7, increasing the tightness of the connection between the support body 7 and the clamp, and preventing the clamp from falling off after being fastened and fixed to the outer edge of the support body 7.

[0032] In the technical solution provided in this embodiment, the side rib structures 1 located on both sides of the support body 7 are evenly distributed with notch structures 2 at preset intervals, and the notch structures 2 located on both sides of the side rib structures 1 are connected within the support body 7. This design optimizes the structure of the notch structures 2 on the support body 7, and the notch structures 2 on both sides of the support body 7 are interconnected within the support body 7, ensuring the ventilation effect at the position of the support body 7.

[0033] In the technical solution provided in this embodiment, the aluminum sleeve 8 of the dust cover fixing bracket that fits the air spring is provided with an annular groove structure 11. The side edge of the bracket body 7 is recessed into the groove structure 11 to form a concave-convex fit. In order to adapt to the fastening and fixing between the bracket body 7 and the aluminum sleeve 8, an annular groove structure 11 is provided at the fastening position between the outer periphery of the aluminum sleeve 8 and the bracket body 7. The size of the groove structure 11 is adapted to the shape of the outer edge of the bracket body 7, so that the bracket body 7 is not easy to fall off the aluminum sleeve 8.

[0034] In the technical solution provided in this embodiment, the width of the sinkhole structure 11 ranges from 18.0mm to 18.4mm, and the width of the support body 7 ranges from 16.0mm to 16.4mm. This design optimizes the size selection of the support body 7 and the sinkhole structure 11. The optimal selection is a width of 16.2mm for the support body 7 and a width of 18.2mm for the sinkhole structure 11, ensuring that the distance between the outer edge of the support body 7 and the inner edge of the sinkhole structure 11 on one side is about 1mm. This size design ensures both the secure fastening of the support body 7 and the ease of installation.

[0035] Although this application discloses the information as described above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A dust cover fixing bracket for an air spring, comprising a bracket body (7) with a circular structure, wherein the inner circumferential surface of the bracket body (7) is fitted with an aluminum protective sleeve (8) of the air spring, and the outer circumferential surface of the bracket body (7) is fitted and fixed with the inner edge surface of the air spring dust cover (9), characterized in that, The upper and lower sides of the inner circumferential surface of the bracket body (7) are provided with protruding side rib structures (1). The side rib structure (1) is arc-shaped and its length direction is parallel to the length direction of the bracket body (7). The side rib structure (1) is provided with a notch structure (2). The space between the notch structure (2) and the inner side of the aluminum casing (8) is used for air intake and exhaust. The inner circumferential surface of the bracket body (7) is also provided with an adhesive boss structure (3). The top surface of the adhesive boss structure (3) is a concave arc surface that matches the aluminum casing (8). The protrusion height of the adhesive boss structure (3) is the same as that of the side rib structure (1). The two are connected as one piece. The top surface of the adhesive boss structure (3) is fixed to the outer circumferential surface of the aluminum casing (8).

2. The dust cover fixing bracket for the air spring according to claim 1, characterized in that, The adhesive boss structure (3) and the side rib structure (1) are both integrally injection molded with the bracket body (7).

3. The dust cover fixing bracket for the air spring according to claim 1, characterized in that, A 3M adhesive pad is provided between the top surface of the adhesive boss structure (3) and the aluminum casing (8).

4. The dust cover fixing bracket for the air spring according to claim 1, characterized in that, The main body of the bracket (7) includes two semi-rings that are interlocked at their ends, and each semi-ring is provided with the adhesive boss structure (3).

5. The dust cover fixing bracket for the air spring according to claim 4, characterized in that, One end of the semi-ring is provided with a socket structure (6), and the other end is provided with a plug structure (5). The two semi-rings are connected to the socket structure (6) through the plug structure (5) to form a complete ring.

6. The dust cover fixing bracket for the air spring according to claim 1, characterized in that, The outer circumferential surface of the bracket body (7) is provided with an annular groove structure (4) for use in conjunction with the clamp structure (10) for snap-fit ​​fixation.

7. The dust cover fixing bracket for the air spring according to claim 1, characterized in that, The side rib structures (1) located on both sides of the support body (7) are evenly distributed with notch structures (2) at a preset distance, and the notch structures (2) located on both sides of the side rib structures (1) are connected inside the support body (7).

8. The dust cover fixing bracket for the air spring according to claim 1, characterized in that, The aluminum sleeve (8) of the dust cover fixing bracket that fits the air spring is provided with an annular groove structure (11), and the side edge of the bracket body (7) is sunk into the groove structure (11) to form a concave-convex fit.

9. The dust cover fixing bracket for the air spring according to claim 8, characterized in that, The width of the sinkhole structure (11) ranges from 18.0mm to 18.4mm, and the width of the support body (7) ranges from 16.0mm to 16.4mm.

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