Double-positioning-pin type air suspension

Abstract

The utility model discloses a double-positioning-pin type air suspension which comprises a guide arm, a pressing plate, a U-shaped bolt assembly, an axle with a rectangular section, a lower bracket, an upper bracket, a support connected with one end of the guide arm, an air spring assembly connected with the other end of the guide arm, a shock absorber and a connecting plate connected with the upper bracket and the lower bracket. The upper bracket is provided with a mounting groove used for mounting the guide arm, the pressing plate is arranged on the upper end face of the guide arm, and the lower bracket, the upper bracket, the pressing plate and the guide arm are locked through the U-shaped bolt assembly. At least two positioning pins are further included, at least two first positioning holes arranged in the extending direction of the guide arm are formed in the mounting groove, second positioning holes in one-to-one correspondence with the first positioning holes are formed in the guide arm, and the two ends of the positioning pins extend into the first positioning holes and the second positioning holes respectively. The guide arm assembly has the advantages that the at least two positioning pins are arranged, so that the assembly efficiency can be improved, and the tendency that the guide arm swings in the width direction can be overcome when the guide arm is subjected to lateral force.

Description

Technical Field

[0001] The utility model relates to the field of vehicle parts, in particular to a double-locating pin type air suspension. Background Art

[0002] Air suspension is a system that allows cars to have the comfort of a sedan while taking into account the performance of an off-road vehicle. The air suspension system can raise or lower the chassis height according to the ups and downs of the road, so that the vehicle can adapt to driving needs under various road conditions. The air suspension system is mostly used on off-road vehicles that often travel under harsh road conditions to ensure that the vehicle can smoothly pass through muddy, wading, gravel and other roads. The structure of the air suspension includes an axle, a guide arm, an axle upper support seat, an axle lower support seat and other structures. The axle upper support seat is usually provided with a groove for installing the guide arm. In order to limit the extension and contraction of the guide arm along the groove, a positioning pin is provided in the groove to achieve the positioning assembly between the guide arm and the axle upper support seat. There is a problem with this method: due to the assembly gap between the groove and the guide arm, the assembly efficiency of a single positioning pin can still be improved in matching the axle upper support seat and the guide arm. At the same time, due to the assembly gap, the guide arm can have a gap displacement in the groove, especially when the guide arm is subjected to lateral force, no positioning pin will slide left and right in the groove, and only one positioning pin will cause the guide arm to swing along the positioning pin.

[0003] In view of this, it is necessary to provide a double-locating pin type air suspension. Summary of the invention

[0004] The utility model provides a double-locating pin type air suspension, which effectively solves the problems of low efficiency and poor effect of existing coil dispensing.

[0005] The technical solution adopted by the utility model is

[0006] A double locating pin type air suspension includes a guide arm, a pressure plate, a U-bolt assembly, a vehicle bridge with a rectangular cross section, a lower support seat for supporting the lower end face of the vehicle bridge, an upper support seat arranged on the upper end face of the vehicle bridge, a bracket connected to one end of the guide arm, an air spring assembly connected to the other end of the guide arm, a shock absorber with two ends respectively connected to the bracket and the upper support seat, and a connecting plate connecting the upper support seat and the lower support seat, wherein the upper support seat is provided with a mounting groove for installing the guide arm, the pressure plate is arranged on the upper end face of the guide arm, and the U-bolt assembly locks the lower support seat, the upper support seat, the pressure plate and the guide arm. It also includes at least two locating pins, wherein the mounting groove is provided with at least two No. 1 locating holes arranged along the extension direction of the guide arm, the guide arm is provided with a No. 2 locating hole corresponding to the No. 1 locating hole, and the two ends of the locating pin extend into the No. 1 locating hole and the No. 2 locating hole respectively.

[0007] Furthermore, the U-bolt assembly includes a No. 1 U-bolt, a No. 2 U-bolt, two No. 1 nuts and two No. 2 nuts, the lower bracket is provided with a No. 1 arc groove for positioning with the No. 1 U-bolt and a No. 2 arc groove for positioning with the No. 2 U-bolt, the upper bracket is provided with a No. 1 vertical groove for positioning with the No. 1 U-bolt and a No. 2 vertical groove for positioning with the No. 2 U-bolt, the pressure plate is provided with two No. 1 through holes and two No. 2 through holes, both ends of the No. 1 U-bolt pass through the two No. 1 through holes respectively and are threadedly connected with the No. 1 nut, and both ends of the No. 2 U-bolt pass through the two No. 2 through holes respectively and are threadedly connected with the No. 2 nut.

[0008] Furthermore, the pressure plate includes a body and protrusions arranged at the four corners of the body and protruding downward, the No. 1 through hole and the No. 2 through hole are respectively arranged on the four protrusions, and the two protrusions arranged along the width direction of the guide arm are used to abut against the two sides of the guide arm.

[0009] Furthermore, both ends of the positioning pin are provided with chamfers.

[0010] Furthermore, gaskets are provided on the upper end surface and the lower end surface of the guide arm.

[0011] The beneficial effects of the utility model are as follows: by providing at least two positioning pins, the assembly efficiency can be improved, and when the guide arm is subjected to lateral force, the tendency of the guide arm to swing along the width direction can be overcome. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 An overall schematic diagram of a double locating pin air suspension provided in an embodiment of the present application.

[0013] Figure 2 A schematic diagram of a U-bolt assembly, an upper bracket, a locating pin, a lower bracket and a pressure plate of a double locating pin air suspension provided in an embodiment of the present application.

[0014] Figure 3 for Figure 2 Exploded diagram.

[0015] The markings in the figure are: 1, guide arm; 2, pressure plate; 3, U-bolt assembly; 4, axle; 5, lower bracket; 6, upper bracket; 7, bracket; 8, air spring assembly; 9, shock absorber; 10, connecting plate; 60, mounting groove; 11, positioning pin; 31, No. 1 U-bolt; 32, No. 2 U-bolt; 33, No. 1 nut; 34, No. 2 nut; 51, No. 1 arc groove; 52, No. 2 arc groove; 201, No. 1 through hole; 202, No. 2 through hole; 21, body; 22, protrusion; 110, chamfer; 61, No. 1 vertical groove; 62, No. 2 vertical groove; DETAILED DESCRIPTION

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0017] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a double locating pin 11 type air suspension, whose structure includes a guide arm 1, a pressure plate 2, a U-bolt assembly 3, an axle 4 with a rectangular cross-section, a lower support seat 5 for supporting the lower end surface of the axle 4, an upper support seat 6 arranged on the upper end surface of the axle 4, a bracket 7 connected to one end of the guide arm 1, an air spring assembly 8 connected to the other end of the guide arm 1, a shock absorber 9 connected to the bracket 7 and the upper support seat 6 at both ends respectively, and a connecting plate 10 connecting the upper support seat 6 and the lower support seat 5, the upper support seat 6 is provided with a mounting groove 60 for mounting the guide arm 1, the pressure plate 2 is arranged on the upper end surface of the guide arm 1, and the U-bolt assembly 3 locks the lower support seat 5, the upper support seat 6, the pressure plate 2 and the guide arm 1. It also includes at least two positioning pins 11. The installation groove 60 is provided with at least two No. 1 positioning holes arranged along the extension direction of the guide arm 1. The guide arm 1 is provided with a No. 2 positioning hole corresponding to the No. 1 positioning hole one by one. The two ends of the positioning pin 11 extend into the No. 1 positioning hole and the No. 2 positioning hole respectively.

[0018] During actual assembly, the positioning pin 11 is first assembled into the No. 1 positioning hole, and then the guide arm 1 is assembled with the positioning pin 11 so that the upper end of the positioning pin 11 extends into the No. 2 positioning hole. During actual use, when the guide arm 1 is subjected to lateral force, the positioning pin 11 arranged along the extension direction of the guide arm 1 prevents the guide arm 1 from swinging left and right.

[0019] In the above design, by providing at least two positioning pins 11, the assembly efficiency can be improved, and the tendency of the guide arm 1 to swing along the width direction can be overcome when the guide arm 1 is subjected to a lateral force.

[0020] Specifically: Figure 2 and Figure 3As shown, the U-shaped bolt assembly 3 includes a No. 1 U-shaped bolt 31, a No. 2 U-shaped bolt 32, two No. 1 nuts 33 and two No. 2 nuts 34, the lower bracket 5 is provided with a No. 1 arc groove 51 for positioning the No. 1 U-shaped bolt 31 and a No. 2 arc groove 52 for positioning the No. 2 U-shaped bolt 32, the upper bracket 6 is provided with a No. 1 vertical groove 61 for positioning the No. 1 U-shaped bolt 31 and a No. 2 vertical groove 62 for positioning the No. 2 U-shaped bolt 32, the pressure plate 2 is provided with two No. 1 through holes 201 and two No. 2 through holes 202, both ends of the No. 1 U-shaped bolt 31 pass through the two No. 1 through holes 201 respectively and are threadedly connected with the No. 1 nut 33, and both ends of the No. 2 U-shaped bolt 32 pass through the two No. 2 through holes 202 respectively and are threadedly connected with the No. 2 nut 34.

[0021] During actual assembly, the lower bracket 5 assembles the No. 1 U-shaped bolt 31 through the No. 1 arc groove 51, assembles the No. 2 U-shaped bolt 32 through the No. 2 arc groove 52, limits the No. 1 U-shaped bolt 31 and the No. 1 vertical groove 61, and limits the No. 2 U-shaped bolt 32 and the No. 2 vertical groove 62, so that the four ends of the upper bracket 6 limit the No. 1 U-shaped bolt 31 and the No. 2 U-shaped bolt 32.

[0022] In the above design, the upper supporting seat 6 and the lower supporting seat 5 can be effectively fixed.

[0023] Specifically: Figure 2 and Figure 3 As shown, the pressure plate 2 includes a main body 21 and protrusions 22 arranged at the four corners of the main body 21 and protruding downward. The No. 1 through hole 201 and the No. 2 through hole 202 are respectively arranged on the four protrusions 22. The two protrusions 22 arranged along the width direction of the guide arm 1 are used to abut against the two sides of the guide arm 1.

[0024] In actual use, the two protrusions 22 arranged along the width direction of the guide arm 1 are used to abut against the two sides of the guide arm 1, so that the guide arm 1 is limited.

[0025] In the above design, the structural design and specific implementation of the pressing plate 2 can effectively fix the guide arm 1.

[0026] Specifically: Figure 3 As shown, chamfers 110 are provided at both ends of the positioning pin 11 .

[0027] In the above design, the chamfer 110 is designed to facilitate the assembly of the positioning pin 11 .

[0028] Specifically: gaskets are provided on the upper end surface and the lower end surface of the guide arm 1.

[0029] In the above design, the friction between the guide arm 1 and the upper support seat 6 and the lower support seat 5 can be further achieved through the gasket.

[0030] To further explain in detail, it should be understood that the above is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double locating pin (11) type air suspension, comprising a guide arm (1), a pressure plate (2), a U-bolt assembly (3), an axle (4) with a rectangular cross section, a lower support seat (5) for supporting the lower end surface of the axle (4), an upper support seat (6) arranged on the upper end surface of the axle (4), a bracket (7) connected to one end of the guide arm (1), an air spring assembly (8) connected to the other end of the guide arm (1), a shock absorber (9) having two ends respectively connected to the bracket (7) and the upper support seat (6), and a connecting plate (10) connecting the upper support seat (6) and the lower support seat (5), wherein the upper support seat (6) is provided with a mounting groove (60) for mounting the guide arm (1), the pressure plate (2) is arranged on the upper end surface of the guide arm (1), and the U-bolt assembly (3) locks the lower support seat (5), the upper support seat (6), the pressure plate (2) and the guide arm (1), and is characterized in that: It also includes at least two positioning pins (11), the installation groove (60) is provided with at least two No. 1 positioning holes arranged along the extension direction of the guide arm (1), the guide arm (1) is provided with No. 2 positioning holes corresponding to the No. 1 positioning holes one by one, and the two ends of the positioning pin (11) extend into the No. 1 positioning hole and the No. 2 positioning hole respectively.

2. The double-locating pin air suspension according to claim 1, characterized in that: The U-shaped bolt assembly (3) includes a No. 1 U-shaped bolt (31), a No. 2 U-shaped bolt (32), two No. 1 nuts (33) and two No. 2 nuts (34); the lower bracket (5) is provided with a No. 1 arc groove (51) for positioning with the No. 1 U-shaped bolt (31) and a No. 2 arc groove (52) for positioning with the No. 2 U-shaped bolt (32); the upper bracket (6) is provided with a No. 1 vertical groove for positioning with the No. 1 U-shaped bolt (31) (61) and a No. 2 vertical groove (62) for positioning with a No. 2 U-shaped bolt (32), the pressure plate (2) is provided with two No. 1 through holes (201) and two No. 2 through holes (202), the two ends of the No. 1 U-shaped bolt (31) respectively pass through the two No. 1 through holes (201) and are threadedly connected with the No. 1 nut (33), and the two ends of the No. 2 U-shaped bolt (32) respectively pass through the two No. 2 through holes (202) and are threadedly connected with the No. 2 nut (34).

3. The double-locating pin air suspension according to claim 2, characterized in that: The pressure plate (2) comprises a body (21) and protrusions (22) arranged at four corners of the body (21) and protruding downwards, the No. 1 through hole (201) and the No. 2 through hole (202) are respectively arranged on the four protrusions (22), and the two protrusions (22) arranged along the width direction of the guide arm (1) are used to abut against two sides of the guide arm (1).

4. The double-locating pin air suspension according to claim 1, characterized in that: Both ends of the positioning pin (11) are provided with chamfers (110).

5. The double-locating pin air suspension according to claim 1, characterized in that: The upper end surface and the lower end surface of the guide arm (1) are both provided with gaskets.

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