Swing arm structure of vehicle suspension

Abstract

The utility model relates to the technical field of vehicle suspensions, in particular to a vehicle suspension swing arm structure which comprises a swing arm, a longitudinal beam, a shock absorber and two sets of buffering components, a first penetrating opening is formed in the surface of the swing arm, a second penetrating opening is formed in the surface of the longitudinal beam, one end of the shock absorber penetrates through the first penetrating opening and is connected with the swing arm, and the other end of the shock absorber penetrates through the second penetrating opening. The other end of the buffering component penetrates through the second penetrating opening and then is fixedly connected with the vehicle body, the buffering component comprises two arc-shaped plates and a plurality of buffering springs, and the buffering springs are vertically and fixedly installed between the two arc-shaped plates respectively; the lower surface of the longitudinal beam and the upper surface of the swing arm are each provided with an annular groove with the shock absorber as the circle center, and the two arc-shaped plates can be inserted into the annular grooves. The multiple buffer springs located between the swing arm and the longitudinal beam are distributed on the periphery of the shock absorber, so that when the buffer springs are replaced, the buffer springs can be directly disassembled, and the situation that the installation between the longitudinal beam or the swing arm and the shock absorber is removed firstly and then the buffer springs are disassembled is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle suspension technical field especially relates to a vehicle suspension swing arm structure. BACKGROUND

[0002] The buffer spring and the shock absorber are important components of a vehicle suspension system, and the arrangement of the buffer spring and the shock absorber is generally divided into two categories: one is that the spring and the shock absorber are integrated into a slide column assembly, which is commonly used in front suspension; the other is that the spring and the shock absorber are separated, which is commonly used in rear suspension.

[0003] A suspension damping structure and a vehicle are disclosed in Chinese Patent No. CN215552409U, which cancels the structure of the buffer spring and the shock absorber arranged side by side in the prior art. The first end of the shock absorber passes through the longitudinal beam, and the buffer spring is sleeved outside the shock absorber, so that the buffer spring is installed between the longitudinal beam and the suspension swing arm, and the shock absorber is installed between the vehicle body and the suspension swing arm. This not only reduces the installation space, but also achieves the corresponding damping effect of the shock absorber and the buffer spring.

[0004] The buffer spring in the above patent document is sleeved outside the shock absorber. When it is necessary to remove and replace the buffer spring, the installation between the longitudinal beam or the swing arm and the shock absorber must be removed first, and the buffer spring cannot be directly removed, which is relatively cumbersome. UTILITY MODEL CONTENTS

[0005] The utility model discloses a vehicle suspension swing arm structure to solve the following shortcomings in the prior art. The buffer spring in the existing vehicle suspension swing arm structure is sleeved outside the shock absorber. When it is necessary to remove and replace the buffer spring, the installation between the longitudinal beam or the swing arm and the shock absorber must be removed first, and the buffer spring to be replaced cannot be directly removed, which is relatively cumbersome. The utility model provides a vehicle suspension swing arm structure.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A vehicle suspension swing arm structure includes a swing arm, a longitudinal beam, a shock absorber, and two sets of buffer components. The surface of the swing arm is provided with a first through hole, and the surface of the longitudinal beam is provided with a second through hole. One end of the shock absorber passes through the first through hole and is connected with the swing arm, and the other end passes through the second through hole and is fixedly connected with the vehicle body. The buffer components include two arc-shaped plates and multiple buffer springs, and the multiple buffer springs are vertically fixedly installed between the two arc-shaped plates. The lower surface of the longitudinal beam and the upper surface of the swing arm are both provided with an annular groove for inserting the two arc-shaped plates, with the shock absorber as the center. A vertical rod is fixedly installed in the annular groove in a symmetrical manner. The surface of one of the arc-shaped plates in the buffer components is provided with a through hole for the vertical rod to pass through. The bottom end of the vertical rod is provided with a mounting groove, and the mounting groove is provided with a limiting component for limiting the vertical movement of the arc-shaped plate.

[0008] Preferably, the limiting component comprises a mounting rod fixedly installed in the mounting groove in vertical and two limiting blocks with longitudinal section being right trapezoid, surfaces of the vertical rod are symmetrically provided with sliding ports, the two limiting blocks are respectively slidably arranged in the two sliding ports, and the mutually close surfaces of the two limiting blocks are fixedly connected with the surface of the mounting rod through the telescopic component.

[0009] Preferably, the telescopic component comprises a spring rod, and the two ends of the spring rod are fixedly connected with the limiting block and the mounting rod respectively.

[0010] Preferably, the bottom end of the limiting block is fixedly provided with a straight rod, and the distance between the two straight rods located at the bottom end of the vertical rod is smaller than the diameter of the vertical rod.

[0011] Preferably, the distance between the upper surface of the limiting block and the groove wall of the annular groove located above the limiting block is matched with the thickness of the arc-shaped plate.

[0012] Preferably, the inclined surface of the limiting block is coated with smooth paint, and the smooth paint is polytetrafluoroethylene paint.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The plurality of buffer springs between the swing arm and the longitudinal beam are distributed around the shock absorber, so that when the buffer spring needs to be replaced, the buffer spring can be individually removed, without the need of removing the mounting between the longitudinal beam or the swing arm and the shock absorber before the buffer spring is removed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front perspective structural schematic view of a vehicle suspension swing arm structure according to the utility model;

[0016] Figure 2 It is a bottom perspective structural schematic view of a vehicle suspension swing arm structure according to the utility model;

[0017] Figure 3 It is a partial perspective structural schematic view of a longitudinal beam in a vehicle suspension swing arm structure according to the utility model;

[0018] Figure 4 It is a partial perspective structural schematic view of a swing arm in a vehicle suspension swing arm structure according to the utility model;

[0019] Figure 5 It is a partial perspective structural schematic view of a buffer component in a vehicle suspension swing arm structure according to the utility model;

[0020] Figure 6A part of the split three-dimensional structure schematic diagram of the limiting assembly in the vehicle suspension swing arm structure is provided in the utility model.

[0021] Figure 7 For Figure 2 The structure enlarged view of A in the middle.

[0022] In the drawing: 1 swing arm, 2 longitudinal beam, 3 shock absorber, 4 arc plate, 5 buffer spring, 6 annular groove, 7 vertical rod, 8 through port, 9 mounting rod, 10 limiting block, 11 spring rod, 12 straight rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] The terms such as "up", "down", "left", "right", "middle" and "one" cited in the utility model are only for the convenience of clear description, not to limit the scope of the utility model that can be implemented, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model that can be implemented without substantial change of the technical content.

[0025] Referring to Figures 1-7 A vehicle suspension swing arm structure, including swing arm 1, longitudinal beam 2 and shock absorber 3 and two groups of buffer components, the surface of swing arm 1 is provided with first through port, the surface of longitudinal beam 2 is provided with second through port, one end of shock absorber 3 passes through first through port and is connected with swing arm 1, and the other end passes through second through port and is fixedly connected with vehicle body, and buffer component includes two arc plates 4 and multiple buffer springs 5, and multiple buffer springs 5 are vertically fixedly installed between two arc plates 4.

[0026] The lower surface of the longitudinal beam 2 and the upper surface of the swing arm 1 are both provided with annular grooves 6 for inserting two arc-shaped plates 4, and the annular grooves 6 located above are symmetrically provided with vertical rods 7; the surface of one of the arc-shaped plates 4 is provided with through holes 8 for the vertical rods 7 to pass through; the bottom end of the vertical rod 7 is provided with a mounting groove, and the mounting groove is provided with a limiting assembly for limiting the vertical movement of the arc-shaped plate 4; the limiting assembly comprises a mounting rod 9 vertically fixedly installed in the mounting groove and two limiting blocks 10 with a vertical section of a right trapezoid; the surface of the vertical rod 7 is symmetrically provided with sliding openings, and the two limiting blocks 10 are respectively slidably arranged in the sliding openings; and the surface of the mounting rod 9 is fixedly connected with one side of each of the two limiting blocks 10 through an elastic component; the elastic component comprises a spring rod 11, and the two ends of the spring rod 11 are respectively fixedly connected with the limiting block 10 and the mounting rod 9; the bottom end of the limiting block 10 is fixedly provided with a straight rod 12, and the distance between the two straight rods 12 located at the bottom end of the vertical rod 7 is smaller than the diameter of the vertical rod 7; and the distance between the upper surface of the limiting block 10 and the groove wall of the annular groove 6 located above the limiting block 10 is matched with the thickness of the arc-shaped plate 4.

[0027] When the two sets of buffer components are installed, first, the through holes 8 provided on the surfaces of the two arc-shaped plates 4 are respectively aligned with the two vertical rods 7, and then the two vertical rods 7 are respectively passed through the two through holes 8; in this process, the hole wall of the through hole 8 is in sliding contact with the inclined surface of the limiting block 10; under the abutting action of the inclined surface, the two limiting blocks 10 are close to each other, and the plurality of spring rods 11 are also contracted; until the arc-shaped plate 4 enters the annular groove 6 provided on the lower surface of the longitudinal beam 2, at this time, the through hole 8 is no longer in contact with the limiting block 10, and the abutting force applied to the limiting block 10 also disappears; the limiting block 10 is quickly moved and reset under the elastic potential energy of the spring rod 11, the upper surface of the limiting block 10 is abutted with the lower surface of the arc-shaped plate 4, so as to lock the arc-shaped plate 4 located above in the annular groove 6 located above, and limit the vertical movement of the arc-shaped plate 4; then, the two arc-shaped plates 4 located below are placed in the annular groove 6 provided on the upper surface of the swing arm 1, and the installation is completed.

[0028] When the buffer components need to be disassembled, only the two straight rods 12 located below the vertical rod 7 are controlled to be close to each other, so that the two limiting blocks 10 located on the side wall of the vertical rod 7 are close to each other, until the upper surfaces of the two limiting blocks 10 are no longer abutted with the lower surface of the arc-shaped plate 4, the limitation on the arc-shaped plate 4 is released; then, the arc-shaped plate 4 located above is taken out of the annular groove 6 located above, and the arc-shaped plate 4 located below is taken out of the annular groove 6 located below, and the disassembly of the buffer components is completed.

[0029] The inclined surface of the limiting block 10 is coated with smooth paint, and the smooth paint is polytetrafluoroethylene paint, which can reduce the friction between the inclined surface of the limiting block 10 and the contact surface of the hole wall of the through hole 8.

[0030] The multiple buffer springs 5 between the swing arm 1 and the longitudinal beam 2 are distributed around the shock absorber 3, and are not sleeved on the shock absorber 3, so that when the buffer spring 5 needs to be replaced, the buffer spring 5 can be directly disassembled, without the need to first remove the installation between the longitudinal beam 2 or the swing arm 1 and the shock absorber 3, and then disassemble the buffer spring 5, thereby simplifying the steps of disassembling the buffer spring 5.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly.

[0032] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A vehicle suspension swing arm arrangement comprising a swing arm (1), a longitudinal beam (2) and a shock absorber (3) and two sets of cushioning members, characterised in that, The surface of the swing arm (1) is provided with a first through hole, the surface of the longitudinal beam (2) is provided with a second through hole, one end of the shock absorber (3) passes through the first through hole and is connected with the swing arm (1), and the other end passes through the second through hole and is fixedly connected with the vehicle body, the buffer component comprises two arc-shaped plates (4) and a plurality of buffer springs (5), the plurality of buffer springs (5) are respectively vertically fixedly installed between the two arc-shaped plates (4); the lower surface of the longitudinal beam (2) and the upper surface of the swing arm (1) are both provided with an annular groove (6) for inserting the two arc-shaped plates (4) and taking the shock absorber (3) as the center, the vertical rod (7) is symmetrically fixedly installed in the annular groove (6) located at the upper side, the surface of one of the arc-shaped plates (4) in the buffer component is provided with a through hole (8) for the vertical rod (7) to pass through, the bottom end of the vertical rod (7) is provided with a mounting groove, and the mounting groove is provided with a limiting component for limiting the vertical movement of the arc-shaped plate (4).

2. A vehicle suspension swing arm structure according to claim 1, wherein The limiting component comprises a mounting rod (9) and two limiting blocks (10) with longitudinal sections being right trapezoids, the surface of the vertical rod (7) is symmetrically provided with sliding openings, the two limiting blocks (10) are respectively slidably arranged in the two sliding openings, and the surface of the mounting rod (9) is fixedly connected with one side of each of the two limiting blocks (10) close to each other through an extension component.

3. A vehicle suspension swing arm structure according to claim 2, wherein The extension component comprises a spring rod (11), and the two ends of the spring rod (11) are fixedly connected with the limiting block (10) and the mounting rod (9) respectively.

4. A vehicle suspension swing arm arrangement according to claim 3, wherein The bottom end of the limiting block (10) is fixedly provided with a straight rod (12), and the distance between the two straight rods (12) located at the bottom end of the vertical rod (7) is smaller than the diameter of the vertical rod (7).

5. The swing arm structure for a vehicle suspension according to claim 2, wherein The distance between the upper surface of the limiting block (10) and the groove wall of the annular groove (6) located above the limiting block (10) is matched with the thickness of the arc-shaped plate (4).

6. The swing arm structure for a vehicle suspension according to claim 2, wherein The inclined surface of the limiting block (10) is coated with smooth paint, and the smooth paint is polytetrafluoroethylene paint.

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