Air suspension lower connecting structure

Abstract

The utility model discloses an air suspension lower connecting structure which comprises a support used for bearing an air bag and a shock absorber and connected with a transverse connecting rod, a longitudinal connecting rod and a stabilizer bar, the support is provided with a transverse rod mounting seat, a longitudinal rod mounting seat and an air bag fixing hole, and the center points of the transverse rod mounting seat, the longitudinal rod mounting seat and the air bag fixing hole are all located on the same side of the support. On one hand, the number of support connecting joints is reduced and the structure is simplified in cooperation with the composite stabilizer bar, and on the other hand, the transverse connecting rod, the longitudinal connecting rod and the air bag are arranged on the same straight line on one side of the support to balance the stress of the support and further improve the durability.

Description

Technical Field

[0001] The utility model relates to the field of air suspensions, in particular to a lower connection structure of an air suspension. Background Art

[0002] The existing air-suspended connection structure is as follows Figure 1 It is shown that the support 1 is connected to the first longitudinal link 3a, the second longitudinal link 3b, the transverse link 5, and the balance bar 6 through various ball joints. There are many connection nodes, the assembly process is time-consuming, and it is difficult to replace it in the after-sales stage. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of the present invention is to provide an air suspension lower connection structure to reduce the number of parts and reduce the complexity of assembly.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An air suspension lower connection structure includes a support for carrying an airbag and a shock absorber and connected to a transverse link, a longitudinal link and a stabilizer bar. The support has a transverse bar mounting seat, a longitudinal bar mounting seat and an airbag fixing hole, all of which have their center points located on the same side of the support.

[0006] Furthermore, a virtual line connecting the fixing center of the transverse connecting rod and the transverse rod mounting seat, the fixing center of the longitudinal connecting rod and the longitudinal rod mounting seat, and the axis of the airbag fixing hole is a straight line, and the virtual line is biased toward one side of the support.

[0007] Furthermore, the crossbar mounting seat and the longitudinal bar mounting seat are respectively arranged on both sides of the support and each comprises a pair of bosses protruding upwards, and the longitudinal connecting rod and the transverse connecting rod are respectively fixed between the bosses.

[0008] Furthermore, a stabilizing rod mounting seat for fixing the stabilizing rod is also provided on the support, and the stabilizing rod mounting seat is located on the side of the longitudinal rod mounting seat and has an opening extending downward.

[0009] Furthermore, the opening is in a semicircular arc shape so that the rod wall of the stabilizing rod can fit tightly with the opening through the buffer space.

[0010] Furthermore, it also includes a shock absorber mounting hole which is penetrated through the support and opposite to the longitudinal rod mounting seat.

[0011] Furthermore, a reinforcing structure for improving the bearing capacity of the lower end of the airbag is provided at the bottom of the support.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides an air suspension lower connection structure, which, on the one hand, cooperates with a composite stabilizer bar to reduce the number of support connection joints and simplify the structure, and on the other hand, balances the support force by arranging the transverse and longitudinal connecting rods and the airbag on a straight line on one side of the support, thereby further improving the durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 It is a schematic diagram of the existing connection structure.

[0016] Figure 2 It is a schematic diagram of the connection structure of the utility model.

[0017] Figure 3 This is the structural diagram of the support Figure 1 .

[0018] Figure 4 This is the structural diagram of the support Figure 2 . DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are professional terms well known to those skilled in the art. The above description is simplified for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0020] The singular forms "a", "said" and "the" used in the specification include plural forms unless clearly indicated. The terms "include", "comprises" and "comprising" used in the specification indicate the presence of the claimed features, but do not exclude the presence of one or more other features.

[0021] In the specification, when an element is said to be "on", "fixed" to, "connected" to, "engaged" to, etc., another element, the element may be directly on, fixed to, connected to, engaged to, or in contact with the other element, or there may be intervening elements. In the specification, when a feature is arranged "adjacent" to another feature, it may mean that the feature has a portion overlapping with the adjacent feature or a portion located above or below the adjacent feature.

[0022] It is to be understood that although the terms "first", "second", etc. may be used herein to describe different elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Therefore, a first element may be referred to as a second element without departing from the teachings of the present application.

[0023] The following will describe exemplary embodiments of the present application with reference to the accompanying drawings. However, it should be understood that the present application can be presented in a variety of different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments. In all drawings, the same reference numerals represent the same or functionally identical elements.

[0024] refer to Figure 2 An air suspension lower connection structure is provided, in which the stabilizer bar 20 integrates the functions of a balance bar and a longitudinal link in the existing structure, and the force on the lower end of the airbag 7 is balanced by placing the connection point of the stabilizer bar 20, the longitudinal link 3, and the transverse link 5 on one side of the support 10.

[0025] Figure 3 The specific structure of the support is shown, and the crossbar mounting seat 12 and the longitudinal rod mounting seat 14 are respectively located at the two ends of the long side direction of the support 1. The crossbar mounting seat 12 is composed of a pair of opposing bosses 10b, and the end ball joint of the transverse connecting rod 5 passes through the boss 10b and is twisted and fixed. Similarly, the longitudinal rod mounting seat 14 is also composed of a pair of opposing bosses 10a, and the end ball joint of the longitudinal connecting rod 3 passes through the boss 10a and is fixed. Since the longitudinal connecting rod 3 and the transverse connecting rod 5 respectively bear the tension in two different directions from the wheel, the extension direction of the opening of the longitudinal rod mounting seat 14 is different from the extension direction of the opening of the crossbar mounting seat 12 and is perpendicular to each other. Furthermore, the axis of the transverse link 3 intersects with the transverse rod mounting seat 12 at the centering position 19, and the longitudinal link 5 intersects with the longitudinal rod mounting seat 14 at the centering position 19. A virtual line 18 is made between the centering positions 19 and 19, and the virtual line 18 is biased toward one side of the support 10. The airbag fixing hole 11 is set on the virtual line 18 so that the three stress points are located on the same straight line, thereby better balancing the stress on the support 10 and improving durability. The stabilizer bar mounting seat 15 is located at one end of the support 10 on the same side as the longitudinal rod mounting seat 14. The stabilizer bar mounting seat 15 has a half hole 16 with an opening downward. The inner surface of the half hole 16 is smooth and arc-shaped, so that the rod wall of the stabilizer bar 20 is tightly fitted with the half hole 16 through the buffer rubber member. In contrast, the shock absorber mounting hole 13 for fixing the lower end of the shock absorber 2 is located on the support 10 on the other side of the virtual line 18.

[0026] In one embodiment, the support 10 further has a truncated cone 17, and the airbag fixing hole 11 is arranged at the center of the truncated cone 17. The surface of the truncated cone 17 is flat, so that the airbag 7 is fixed in the airbag fixing hole 11 so that the lower part fits closely with the truncated cone 17 and the force is dispersed.

[0027] refer to Figure 4 In one embodiment, the bottom of the support 10 is provided with an I-shaped structure 10c, which is specifically located at the lower side of the truncated cone 17, and its center is concentric with the airbag fixing hole 11. The I-shaped structure cooperates with the truncated cone 17 to form a reinforcement structure to further enhance the bearing capacity of the support 10 for the airbag 7.

Claims

1. An air suspension lower connection structure, comprising a support for carrying an airbag and a shock absorber and connected to a transverse link, a longitudinal link and a stabilizer bar, characterized in that: The support is provided with a crossbar mounting seat, a longitudinal bar mounting seat and an airbag fixing hole, all of which have their center points located on the same side of the support.

2. The lower connection structure of an air suspension according to claim 1, characterized in that: A virtual line connecting the fixing center of the transverse connecting rod and the transverse rod mounting seat, the fixing center of the longitudinal connecting rod and the longitudinal rod mounting seat and the axis of the airbag fixing hole is a straight line, and the virtual line is biased toward one side of the support.

3. The lower connection structure of an air suspension as claimed in claim 2, characterized in that: The crossbar mounting seat and the longitudinal bar mounting seat are respectively arranged on both sides of the support and each comprises a pair of bosses protruding upwards, and the longitudinal connecting rod and the transverse connecting rod are respectively fixed between the bosses.

4. The lower connection structure of an air suspension as claimed in claim 2, characterized in that: The support is also provided with a stabilizing rod mounting seat for fixing the stabilizing rod. The stabilizing rod mounting seat is located on the side of the longitudinal rod mounting seat and has an opening extending downward.

5. The lower connection structure of an air suspension as claimed in claim 4, characterized in that: The opening is in a semicircular arc shape so that the rod wall of the stabilizing rod can fit closely with the opening through the buffer space.

6. An air suspension lower connection structure according to any one of claims 2 to 5, characterized in that: It also includes a shock absorber mounting hole which is penetrated through the support and faces the longitudinal rod mounting seat.

7. An air suspension lower connection structure according to any one of claims 2 to 5, characterized in that: The bottom of the support is provided with a reinforcing structure for improving the bearing capacity of the lower end of the airbag.

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