Dust cover fixing support of air spring
By designing staggered air grooves and an integrally formed bracket structure, the problems of unstable ventilation and easy clogging of the air spring dust cover bracket are solved, the stability and reliability of the air intake and exhaust functions are achieved, and the processing difficulty and cost are reduced.
Patent Information
- Application Number
- CN202422811018.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The dust cover bracket of the existing automobile air spring has the problem that the air intake and exhaust functions are easily failed, including unstable ventilation volume, easy blockage and deformation leading to functional failure.
A dust cover fixing bracket was designed with a circular structure. The inner circumference was fitted with the aluminum casing of the air spring, and the outer circumference was fitted and fixed to the inner edge of the dust cover. Raised side rib structures were set on the upper and lower sides of the inner circumference. Air grooves were evenly distributed on the side rib structures, and the air grooves on both sides were staggered. The bracket body was integrally injection-molded using PA66+GF30 polymer composite materials. The semi-ring parts were connected by pins and socket structures, and a slot structure was set on the outer circumference to fix the cable tie.
It effectively avoids the influence of pore blockage and deformation, ensures the stability and reliability of the intake and exhaust functions, and reduces processing difficulty and cost.
Smart Images
Figure CN223483271U_ABST
Abstract
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 fixed 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 fixed bracket must withstand the clamping pressure from the clamps and maintain good working condition at room temperature. Considering that the fixed bracket operates at room temperature, it is prone to shrinkage and pore shrinkage over long periods, thus affecting the airflow of 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. In addition, since the bracket's joint area functions as an air spring for air intake and exhaust, debris can easily enter and clog the vents during long-term use, hindering its function. The risk of bracket deformation combined with the risk of vent blockage can easily cause the dust cover bracket to malfunction.
[0004] In summary, existing dust cover brackets for automotive air springs have a technical problem where the intake and exhaust functions are prone to failure. 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 failure in terms of air intake and exhaust functions.
[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. The upper and lower sides of the inner circumferential surface of the bracket body are provided with protruding side rib structures. The length direction of the side rib structures is parallel to the length direction of the bracket body and is arc-shaped. The side rib structures are uniformly distributed with notched air grooves. The air spring enters and exits through the air grooves, and the air grooves on the side rib structures on both sides of the bracket body are staggered.
[0007] The dust cover mounting bracket provided by this utility model has side rib structures on both sides of the bracket body for fitting the outer circumference of the aluminum protective cylinder, and provides ventilation through the side rib structures. Specifically, it achieves communication between the two end faces of the bracket body by setting air grooves. To avoid the failure of the air intake and exhaust function of the bracket body due to impurities entering the air holes and clogging, processing quality control defects, or temperature changes in the working environment, the air holes of the side rib structures on the upper and lower sides of the bracket body are staggered, rather than adopting a symmetrical design on both sides. This can minimize the functional impact caused by deformation of the bracket itself. When local deformation of the bracket affects the ventilation of one side air hole, it effectively prevents the air hole on the other side from being blocked. When impurities enter the air holes inside the bracket body, the staggered arrangement of the air holes on both sides makes it less likely to directly cause blockage. This effectively solves the technical problem of the failure of the air intake and exhaust function in existing dust cover brackets for automotive air springs.
[0008] As a preferred embodiment, the side rib structures are all integrally injection molded with the main body of the bracket. This design further optimizes the design of the main body of the bracket. The protruding structures, i.e., the side rib structures, on the inner circumferential surface of the main body of the bracket facing the aluminum casing are all integrally injection molded with the main body of the bracket, which optimizes the processing and molding design of the bracket, making molding convenient and cost-effective. The injection molding material is preferably a high-molecular composite material of PA66+GF30.
[0009] As a preferred embodiment, the bracket body includes two interlocking semi-rings at their ends, which interlock to form a complete ring shape. 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 the risk of scratches during installation associated with a full-ring structure.
[0010] As a preferred embodiment, one end of the semi-ring is provided with a socket structure, and the other end is provided with a pin structure. The two semi-rings are connected end-to-end by the pin structure and the socket structure. This design optimizes the connection method between the two semi-rings, both of which adopt a design with a pin structure at one end and a socket structure at the other end. The plug at one end of the semi-ring is plugged into the socket at the other end of the other semi-ring for 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.
[0011] As a preferred embodiment, the pin structure includes a pin body parallel to the length direction of the bracket body. Two protruding limiting bosses are integrally connected to both sides of the pin body. The socket structure has cross-shaped grooves that respectively engage with the pin body and the limiting bosses. This design optimizes the specific shape of the pin and socket. The pin body, aligned with the length direction of the bracket body, ensures easy installation of the semi-ring parts. Furthermore, to prevent the pin from easily detaching after engagement, extended structures are provided on both sides of the pin body. The overall strength of the two semi-ring parts after engagement is enhanced through the concave-convex limiting engagement of the limiting bosses and the cross-shaped grooves that fit the socket structure.
[0012] As a preferred embodiment, the outer circumferential surface of the bracket body is provided with an annular groove structure for engaging with the dust cover cable ties to secure the edge of the dust cover. This design further optimizes the bracket body design. The annular groove structure on the outer circumference of the bracket body is recessed inward, forming a concave-convex fit with the cable ties used to secure the bracket body, increasing the tightness of the connection between the bracket body and the cable ties and preventing the cable ties from falling off after being fastened and secured to the outer edge of the bracket body.
[0013] As a preferred embodiment, the width of the groove between the two side ribs of the support body is in the range of 6.5mm-7.0mm. This design optimizes the width of the groove between the two side ribs of the support body, with the optimal choice being a groove width of 6.7mm. This dimension effectively ensures the ventilation of the groove and adapts to the size of the support body.
[0014] As a preferred embodiment, the width of the air grooves on the side rib structure ranges from 4.8mm to 5.2mm, and the depth ranges from 2.0mm to 2.3mm. This design optimizes the dimensions of the air grooves on the side rib structure of the support body, with the optimal choice being a groove width of 5.0mm and a depth of 2.15mm. This dimension effectively ensures the ventilation effect of the air grooves and guarantees that the strength of the support body meets the requirements for fixing the dust cover.
[0015] As a preferred embodiment, the slot width of the card slot structure ranges from 12.0mm to 12.2mm, and the slot depth ranges from 0.5mm to 1.5mm. This design provides a preferred card slot structure size, with the most preferred being a slot width of 12.1mm and a slot depth of 1.0mm, effectively ensuring that the cable ties are securely fastened and do not easily come loose. 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 1A schematic diagram of the semi-ring structure of the dust cover fixing bracket for an air spring;
[0018] Figure 3 for Figure 1 A partial structural diagram of the pin structure of the dust cover fixing bracket for the air spring;
[0019] Figure 4 for Figure 1 A partial structural diagram of the insertion structure of the dust cover fixing bracket for the air spring;
[0020] in, Figure 1-Figure 4 middle:
[0021] 1. Support body; 2. Side rib structure; 3. Air groove; 4. Pin structure; 4-1. Pin body; 4-2. Limiting boss; 5. Insertion structure; 6. Slot structure. Detailed Implementation
[0022] 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.
[0023] 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.
[0024] 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.
[0025] refer to Figure 1-Figure 4 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 1A schematic diagram of the semi-ring structure of the dust cover fixing bracket for an air spring; Figure 3 for Figure 1 A partial structural diagram of the pin structure of the dust cover fixing bracket for the air spring; Figure 4 for Figure 1 A partial structural diagram of the insertion structure of the dust cover fixing bracket for the air spring.
[0026] The dust cover fixing bracket for the air spring provided in this embodiment includes a bracket body 1 with a circular structure. The aluminum protective sleeve of the air spring is attached to the inner circumferential surface of the bracket body 1, and the outer circumferential surface of the bracket body 1 is attached and fixed to the inner edge surface of the air spring dust cover. The upper and lower sides of the inner circumferential surface of the bracket body 1 are provided with protruding side rib structures 2. The length direction of the side rib structure 2 is parallel to the length direction of the bracket body 1 and is arc-shaped. The side rib structure 2 is evenly distributed with notched air grooves 3. The air spring enters and exits through the air grooves 3. The air grooves 3 located on the side rib structures 2 on both sides of the bracket body 1 are staggered.
[0027] The dust cover mounting bracket provided by this utility model has side rib structures 2 on both sides of the bracket body 1 for fitting the outer circumference of the aluminum protective cylinder, and provides ventilation through the side rib structures 2. Specifically, it achieves communication between the two end faces of the bracket body 1 by setting air grooves 3. In order to avoid the failure of the air intake and exhaust function of the bracket body 1 due to impurities entering the air holes and blockage, processing quality control defects, or temperature changes in the working environment, the air holes of the side rib structures 2 on the upper and lower sides of the bracket body 1 are staggered, instead of adopting a symmetrical design on both sides. This can minimize the functional impact caused by the deformation of the bracket itself. When the local deformation of the bracket affects the ventilation of one side air hole, it effectively prevents the air hole on the other side from being blocked. When impurities enter the air holes inside the bracket body 1, the staggered arrangement of the air holes on both sides makes it less likely to directly cause blockage. This effectively solves the technical problem of the failure of the air intake and exhaust function of the dust cover bracket of the existing automotive air spring.
[0028] In the technical solution provided in this embodiment, the side rib structures 2 are all integrally injection molded with the bracket body 1. This design further optimizes the design of the bracket body 1. The protruding structures, i.e., the side rib structures 2, on the inner circumferential surface of the bracket body 1 facing the aluminum casing are all integrally injection molded with the bracket body 1, which optimizes the processing and molding design of the bracket, making molding convenient and cost-effective. The injection molding material is preferably a high-molecular composite material of PA66+GF30.
[0029] In the technical solution provided in this embodiment, the bracket body 1 includes two semi-ring components that interlock at their ends, forming a complete ring shape of the bracket body 1 by interlocking the two semi-ring components end to end. This mechanism optimizes the overall design of the bracket body 1 by using a design where two semi-rings interlock to form a complete ring shape. This structure is suitable for the fixing design of dust cover brackets, avoiding the situation where a bracket body 1 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 5, and the other end is provided with a pin structure 4. The two semi-rings are connected end to end by the pin structure 4 and the socket structure 5. This design optimizes the connection method between the two semi-rings. Both adopt a design with a pin structure 4 at one end and a socket structure 5 at the other end. The plug at one end of the semi-ring is plugged into the socket at the other end of the other semi-ring and fixed together. This design is simple in structure, easy to install and firmly fixed, and suitable for the elastic material of the bracket body 1 itself.
[0031] In the technical solution provided in this embodiment, the pin structure 4 includes a pin body 4-1 parallel to the length direction of the bracket body 1. Two protruding limiting bosses 4-2 are integrally connected to both sides of the pin body 4-1. The socket structure 5 has a cross-shaped groove that mates with the pin body 4-1 and the limiting bosses 4-2 respectively. This design optimizes the specific shape design of the pin and the socket. The pin body 4-1, which is consistent with the length direction of the bracket body 1, can ensure easy installation of the semi-ring parts. In addition, in order to ensure that the pin is not easy to come out after it is connected with the socket, an extension structure is provided on both sides of the pin body 4-1. Through the limiting bosses 4-2 and the cross-shaped grooves of the socket structure 5, the overall strength of the two semi-ring parts after they are connected is improved.
[0032] In the technical solution provided in this embodiment, an annular groove structure 6 is provided on the outer peripheral surface of the bracket body 1 for use in conjunction with the dust cover cable ties to secure the edge of the dust cover. This design further optimizes the design of the bracket body 1. The annular groove structure 6 on the outer peripheral edge of the bracket body 1 is recessed inward, which can form a concave-convex fit with the cable ties that assist in fixing the bracket body 1, increasing the tightness of the connection between the bracket body 1 and the cable ties and preventing the cable ties from falling off after being fastened and fixed to the outer edge of the bracket body 1.
[0033] In the technical solution provided in this embodiment, the width of the groove between the two side rib structures 2 of the support body 1 ranges from 6.5mm to 7.0mm. This design optimizes the width of the groove between the two side rib structures 2 of the support body 1, with the optimal choice being a groove width of 6.7mm. This size effectively ensures the ventilation of the groove and adapts to the size of the support body 1.
[0034] In the technical solution provided in this embodiment, the width of the air groove 3 on the side rib structure 2 ranges from 4.8mm to 5.2mm, and the depth of the air groove 3 ranges from 2.0mm to 2.3mm. This design optimizes the dimensions of the air groove 3 on the side rib structures 2 of the bracket body 1. The optimal choice is an air groove 3 width of 5.0mm and a depth of 2.15mm. This dimension effectively ensures the ventilation effect of the air groove 3 and ensures that the strength of the bracket body 1 meets the fixing effect of the dust cover.
[0035] In the technical solution provided in this embodiment, the groove width of the card slot structure 6 ranges from 12.0mm to 12.2mm, and the groove depth ranges from 0.5mm to 1.5mm. This design provides a preferred size for the card slot structure 6, with the most preferred groove width being 12.1mm and the groove depth being 1.0mm, effectively ensuring that the cable tie is not easily detached.
[0036] Although this application discloses the above information, the scope of protection disclosed herein 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 (1) with a circular ring structure, wherein the inner circumferential surface of the bracket body (1) is fitted with an aluminum protective sleeve of the air spring, and the outer circumferential surface of the bracket body (1) is fitted and fixed to the inner edge surface of the air spring dust cover, characterized in that, The upper and lower sides of the inner circumferential surface of the support body (1) are provided with protruding side rib structures (2). The length direction of the side rib structure (2) is parallel to the length direction of the support body (1) and is arc-shaped. The side rib structure (2) is evenly distributed with notched air grooves (3). The air springs enter and exit through the air grooves (3). The air grooves (3) on the side rib structures (2) on both sides of the support body (1) are staggered.
2. The dust cover fixing bracket for the air spring according to claim 1, characterized in that, The side rib structure (2) is integrally injection molded with the bracket body (1).
3. The dust cover fixing bracket for the air spring according to claim 1, characterized in that, The support body (1) includes two semi-ring pieces that are interlocked at their ends, and the two semi-ring pieces are interlocked end to end to form a complete ring-shaped support body (1).
4. The dust cover fixing bracket for the air spring according to claim 3, characterized in that, One end of the semi-ring is provided with a socket structure (5), and the other end is provided with a pin structure (4). The two semi-rings are connected end to end by the pin structure (4) and the socket structure (5).
5. The dust cover fixing bracket for the air spring according to claim 4, characterized in that, The pin structure (4) includes a pin body (4-1) parallel to the length direction of the bracket body (1). Two protruding limiting bosses (4-2) are integrally connected on both sides of the pin body (4-1). The insertion structure (5) has a cross-shaped groove that is in concave-convex fit with the pin body (4-1) and the limiting bosses (4-2).
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 (1) is provided with a circular groove structure (6) for use in conjunction with the dust cover cable ties to secure the edge of the dust cover.
7. The dust cover fixing bracket for the air spring according to claim 1, characterized in that, The width of the groove between the two side rib structures (2) of the main body (1) of the bracket is in the range of 6.5mm-7.0mm.
8. The dust cover fixing bracket for the air spring according to claim 1, characterized in that, The width of the air groove (3) on the side rib structure (2) ranges from 4.8mm to 5.2mm, and the depth of the air groove (3) ranges from 2.0mm to 2.3mm.