Lifting suspension structure

Abstract

The utility model discloses a lifting suspension structure which comprises two front supports fixedly connected to a vehicle frame, one side of each front support is rotationally connected with one end of a Z-shaped guide arm, the other end of each Z-shaped guide arm is provided with an air bag lower plate support, and the top of each air bag lower plate support is provided with a bearing air bag. A lifting air chamber is installed at the bottom of the front support, a turnover center shaft is rotatably installed on one side of the front support, the end of the Z-shaped guide arm is installed on the turnover center shaft, the end of the turnover center shaft is connected with a turnover mechanism, the top of one end of the turnover mechanism is installed on a limiting block, and the limiting block is located at the bottom of the Z-shaped guide arm. The top of an air chamber push rod of the lifting air chamber is located at the bottom of the turnover mechanism. The lifting air chamber is used as driving force for lifting the suspension, the lifting air chamber is arranged on the inclined lower portion of the front support and acts on the turning plate mechanism, the occupied space is small, aging resistance is achieved, lifting force is large, and lifting is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of air suspension, in particular to a lifting suspension structure. Background Art

[0002] The use of trailer air suspension is becoming increasingly popular. In order to avoid unnecessary wear on tires when empty or lightly loaded, air suspension is often equipped with a lifting function to lift the entire axle off the ground. This lifting device usually uses a dedicated lifting air spring as the acting element.

[0003] The working principle of this lifting method is: the upper plate of the air spring is fixed to the frame, the compressed air in the load-bearing air spring is first exhausted, and then the lifting spring is inflated to move the guide arm part connected to the lower plate of the air spring downward, and the other end of the guide arm is lifted by the rotating shaft, thereby lifting the axle through the lever principle.

[0004] Nowadays, many trailers and semi-trailers have added a lifting mechanism in addition to the load-bearing airbag. The lifting airbag is generally used as the lifting component. The disadvantages of the lifting airbag are that the airbag skin is prone to aging, leakage and failure, the airbag occupies a relatively large space, and is afraid of scratches, heat sources and other layout issues. Utility Model Content

[0005] The purpose of the present utility model is to provide a lifting suspension structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a lifting suspension structure, comprising two front brackets fixedly connected to a vehicle frame, one side of the front bracket being rotatably connected to one end of a Z-shaped guide arm, the other end of the Z-shaped guide arm being mounted with an airbag lower plate drag, and a load-bearing airbag being mounted on top of the airbag lower plate drag;

[0007] A lifting air chamber is installed at the bottom of the front bracket, and a flip center shaft is rotatably installed on one side of the front bracket. The end of the Z-shaped guide arm is installed on the flip center shaft. The end of the flip center shaft is connected to a flip mechanism, and the top of one end of the flip mechanism is installed on a limit block. The limit block is located at the bottom of the Z-shaped guide arm, and the top of the air chamber push rod of the lifting air chamber is located at the bottom of the flip mechanism.

[0008] Preferably, the front bracket is fixed to the vehicle frame by bolts.

[0009] Preferably, upper and lower bridge drags are installed on the horizontal section of the Z-shaped guide arm, and a sling is installed on one side of the upper and lower bridge drags, and the sling is vertically arranged.

[0010] Preferably, a Z-arm bushing is provided at the end of the Z-shaped guide arm, and the Z-arm bushing is sleeved on the flip center axis.

[0011] Preferably, the flip mechanism is a flip plate.

[0012] Preferably, both ends of the flip central axis extend outside the front bracket and are sleeved with locking pads and rotating pads, and the locking pads are sleeved with anti-collision pads.

[0013] Preferably, a turning block is installed at the bottom of the turning mechanism, and the end of the air chamber push rod that lifts the air chamber is buckled with the turning block.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The lifting element has been changed and the lifting air chamber has been used instead of the lifting air bag. The lifting air chamber has stronger lifting force, occupies less space, and has no aging, scratch resistance, or heat source problems.

[0016] 2. Use the lifting air chamber as the driving force for lifting the suspension. The lifting air chamber is arranged diagonally below the front bracket and acts on the flip mechanism. It occupies a small space, is resistant to aging, has a large lifting force, and is easy to lift. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a side view structural diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the turning mechanism of the utility model.

[0020] In the figure: 1. Z-shaped guide arm; 2. Front bracket; 3. Upper and lower bridge drag; 4. Sling; 5. Airbag lower plate drag; 6. Load-bearing airbag; 7. Lifting air chamber; 8. Flip center axis; 9. Flip mechanism; 10. Limit block; 11. Air chamber push rod; 12. Rotating pad; 13. Locking pad. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-3The utility model provides a technical solution: a lifting suspension structure, comprising two front brackets 2 fixedly connected to a vehicle frame, one side of the front bracket 2 being rotatably connected to one end of a Z-shaped guide arm 1, the other end of the Z-shaped guide arm 1 being installed with an airbag lower plate drag 5, and a load-bearing airbag 6 being installed on the top of the airbag lower plate drag 5;

[0023] A lifting air chamber 7 is installed at the bottom of the front bracket 2, and a flip center shaft 8 is rotatably installed on one side of the front bracket 2. The end of the Z-shaped guide arm 1 is installed on the flip center shaft 8. The end of the flip center shaft 8 is connected to a flip mechanism 9, and the top of one end of the flip mechanism 9 is installed on a limit block 10. The limit block 10 is located at the bottom of the Z-shaped guide arm 1, and the top of the air chamber push rod 11 of the lifting air chamber 7 is located at the bottom of the flip mechanism 9.

[0024] In the present invention, the front bracket 2 is fixedly mounted on the vehicle frame by means of bolts.

[0025] In the present invention, an upper and lower bridge drag 3 is installed on the horizontal section of the Z-shaped guide arm 1, and a sling 4 is installed on one side of the upper and lower bridge drag 3, and the sling 4 is vertically arranged.

[0026] In the present invention, a Z-shaped arm bushing is provided at the end of the Z-shaped guide arm 1 , and the Z-shaped arm bushing is sleeved on the flip center shaft 8 .

[0027] In the present invention, the turning mechanism 9 is a turning plate.

[0028] In the present invention, both ends of the flip center shaft 8 extend outside the front bracket 2 and are sleeved with a locking pad 13 and a rotating pad 12 , and the locking pad 13 is sleeved with an anti-collision pad.

[0029] In the present invention, a turning block is installed at the bottom of the turning mechanism 9, and the end of the air chamber push rod 11 of the lifting air chamber 7 is buckled with the turning block.

[0030] The utility model: the front bracket is fixedly connected to the frame by bolts; the lifting air chamber is fixedly connected to the lower plate of the front bracket by bolts, the end of the air chamber push rod is buckled with the flip block, the lifting air chamber push rod is maintained between 100-160mm, the lifting air chamber pushes out the air chamber push rod by inflation, and pushes the flip mechanism upward, and the flip mechanism lifts the Z-shaped guide arm with the flip center axis as the rotation point, and the anti-collision gasket prevents the end of the guide arm from tilting left and right and colliding with the front bracket during vehicle driving; the locking gasket presses the rubber bushing to prevent loosening; the rotating gasket ensures that the flip mechanism can flip smoothly and will not fall off; the utility model changes the lifting element, and uses a lifting air chamber instead of a lifting airbag. The lifting air chamber has a stronger lifting force, occupies less space, and has no problems of aging, scratch resistance, and heat source protection.

[0031] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting suspension structure comprising two front brackets (2) fixedly connected to a vehicle frame, characterized in that: One side of the front bracket (2) is rotatably connected to one end of a Z-shaped guide arm (1), the other end of the Z-shaped guide arm (1) is installed with an airbag lower plate drag (5), and the top of the airbag lower plate drag (5) is installed with a load-bearing airbag (6); A lifting air chamber (7) is installed at the bottom of the front bracket (2), and a turning center shaft (8) is rotatably installed on one side of the front bracket (2). The end of the Z-shaped guide arm (1) is installed on the turning center shaft (8). The end of the turning center shaft (8) is connected to a turning mechanism (9), and the top of one end of the turning mechanism (9) is installed on a limit block (10). The limit block (10) is located at the bottom of the Z-shaped guide arm (1). The top of the air chamber push rod (11) of the lifting air chamber (7) is located at the bottom of the turning mechanism (9).

2. The lifting suspension structure according to claim 1, characterized in that: The front bracket (2) is fixedly mounted on the vehicle frame by means of bolts.

3. The lifting suspension structure according to claim 1, characterized in that: An upper and lower bridge drag (3) is installed on the horizontal section of the Z-shaped guide arm (1), and a sling (4) is installed on one side of the upper and lower bridge drag (3), and the sling (4) is vertically arranged.

4. The lifting suspension structure according to claim 1, characterized in that: The end of the Z-shaped guide arm (1) is provided with a Z-shaped arm bushing, and the Z-shaped arm bushing is sleeved on the flip center shaft (8).

5. The lifting suspension structure according to claim 1, characterized in that: The turning mechanism (9) is a turning plate.

6. The lifting suspension structure according to claim 1, characterized in that: Both ends of the flip center shaft (8) extend outside the front bracket (2) and are sleeved with a locking pad (13) and a rotating pad (12), and the locking pad (13) is sleeved with an anti-collision pad.

7. The lifting suspension structure according to claim 1, characterized in that: A turning block is installed at the bottom of the turning mechanism (9), and the end of the air chamber push rod (11) of the lifting air chamber (7) is buckled with the turning block.

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