Single lever double lift suspension device

Abstract

The utility model discloses a single-lever double lifting suspension device, which belongs to the technical field of amphibious vehicles, including a vehicle beam, a wheel, a suspension support frame, a push-pull rod, a lever, a shock absorber and a swing arm. The rear end of the suspension support frame is hinged to the middle part of the vehicle beam, and the front end of the suspension support frame is hinged to the upper part of the vehicle beam through a hydraulic cylinder; the suspension support frame is provided with a first hinge seat of the bracket, the upper end of the push-pull rod is hinged to the vehicle beam, the lower end of the push-pull rod is hinged to one end of the lever, the middle part of the lever is hinged to the first hinge seat of the bracket, the other end of the lever is hinged to the upper end of the shock absorber, the lower end of the shock absorber is hinged to the lower part of the swing arm, one end of the swing arm is hinged to the suspension support frame, and the other end of the swing arm is connected to the wheel through the wheel bracket. The utility model solves the problem of short lifting stroke of the wheels of existing amphibious ships and vehicles.

Description

Technical Field

[0001] The utility model belongs to the technical field of amphibious vehicles and relates to a suspension device which adopts a single lever to realize the dual lifting of a suspension support frame and a wheel. Background Art

[0002] An amphibious vehicle combines the dual performance of a car and a boat, and can travel on land like a car, and can travel on water like a boat. In order to reduce the resistance of traveling in water, the mode switching of an amphibious vehicle requires changing the state of the wheels. There are some wheel lifting devices in the prior art, such as a wheel lifting mechanism for an amphibious vehicle (application number: 202311519267.7), which includes a bracket, the top of the bracket is connected to a lifting drive mechanism, and the bottom of the bracket is symmetrically installed with two or more shock absorbers relative to its center. The end of the shock absorber is connected to a cradle mechanism through a hinge, and one end of the cradle mechanism is used to connect to the vehicle body, and the other end of the two sets of cradle mechanisms are connected to the wheels through wheel brackets. Its lifting drive mechanism mainly drives the gear through a motor to lift the rack and drive the wheel to lift. The wheel lifting stroke of this technology depends on the length of the rack. For example, when driving in deep water, if the wheel lifting stroke is insufficient, it may cause the wheel to be partially immersed in water, increasing driving resistance and even affecting vehicle stability. In order to increase the wheel lifting height, it is necessary to increase the length of the rack. However, the length of the rack is limited by the internal space at the front and rear of the vehicle, resulting in the wheel lifting height being unable to meet the needs of driving in deep water. Utility Model Content

[0003] The utility model provides a single-lever double-lift suspension device to solve the problem of short lifting travel of wheels of existing amphibious vessels and vehicles.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is: it includes a vehicle frame and a wheel, and also includes a suspension support frame, a push-pull rod, a lever, a shock absorber and a swing arm, the rear end of the suspension support frame is hinged to the middle part of the vehicle frame, and the front end of the suspension support frame is hinged to the upper part of the vehicle frame through a hydraulic cylinder; the suspension support frame is provided with a first hinge seat of the bracket, the upper end of the push-pull rod is hinged to the vehicle frame, the lower end of the push-pull rod is hinged to one end of the lever, the middle part of the lever is hinged to the first hinge seat of the bracket, the other end of the lever is hinged to the upper end of the shock absorber, the lower end of the shock absorber is hinged to the lower part of the swing arm, one end of the swing arm is hinged to the suspension support frame, and the other end of the swing arm is connected to the wheel through the wheel bracket.

[0005] In the above technical scheme, a more specific technical scheme can also be: the swing arm includes an upper swing arm and a lower swing arm, the lower part of the lower swing arm is provided with a swing arm hinge seat, the upper and lower parts of the suspension support frame are respectively provided with a bracket second hinge seat and a bracket third hinge seat, one end of the upper swing arm is hinged to the bracket second hinge seat, the other end of the upper swing arm is hinged to the upper part of the wheel bracket, one end of the lower swing arm is hinged to the bracket third hinge seat, the other end of the lower swing arm is hinged to the lower part of the wheel bracket, and the lower end of the shock absorber is hinged to the swing arm hinge seat.

[0006] Further: a first hinge seat is provided at the upper part of the vehicle beam, a second hinge seat is provided at the middle part of the vehicle beam, a fourth hinge seat is provided at the front end of the suspension support frame, the rear end of the suspension support frame is hinged to the second hinge seat of the beam, the cylinder body of the hydraulic cylinder is hinged to the first hinge seat of the beam, and the telescopic rod of the hydraulic cylinder is hinged to the fourth hinge seat of the bracket.

[0007] Furthermore: a third hinge seat of the beam is also provided on the upper part of the vehicle beam, and the upper end of the push-pull rod is hinged on the third hinge seat of the beam.

[0008] Furthermore: the upper end of the push-pull rod is hinged to the third hinge seat of the beam through a fisheye bearing, and the lower end of the push-pull rod is hinged to the lever through a fisheye bearing.

[0009] Due to the adoption of the above technical scheme, the utility model has the following beneficial effects compared with the prior art: while the suspension support frame is tilted up by the hydraulic cylinder to drive the wheel to rise, the push-pull rod presses one end of the lever downward to lift the other end of the lever upward, so that the shock absorber pulls up the swing arm to drive the wheel to rise, and vice versa, thereby realizing the function of lifting and lowering both the suspension support frame and the wheel with a single lever, effectively increasing the lifting stroke of the wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 yes Figure 1 Schematic diagram of the structure with the wheels in the rising state.

[0012] Figure 3 yes Figure 1 Schematic diagram of the structure of the wheel in the lowered state when viewed from the left.

[0013] Figure 4 yes Figure 3 Schematic diagram of the structure with the wheels in the rising state.

[0014] In the figure: 1. vehicle frame; 11. first hinge seat of frame; 12. second hinge seat of frame; 13. third hinge seat of frame; 2. suspension support frame; 21. first hinge seat of bracket; 22. second hinge seat of bracket; 23. third hinge seat of bracket; 24. fourth hinge seat of bracket; 3. hydraulic cylinder; 4. push-pull rod; 5. lever; 6. shock absorber; 7. upper swing arm; 8. lower swing arm; 81. swing arm hinge seat; 9. wheel; 91. wheel bracket. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below with reference to the accompanying drawings:

[0016] like Figures 1 to 4 The single-lever double-lift suspension device shown in the figure includes a vehicle frame 1 and a wheel 9, and also includes a suspension support frame 2, a push-pull rod 4, a lever 5, a shock absorber 6 and a swing arm. The rear end of the suspension support frame 2 is hinged to the middle part of the vehicle frame 1, and the front end of the suspension support frame 2 is hinged to the upper part of the vehicle frame 1 through a hydraulic cylinder 3. The hydraulic cylinder 3 is used to control the lifting and lowering of the suspension support frame 2. In this example, the use of two hydraulic cylinders 3 can increase the lifting and lowering stability of the suspension support frame 2; the swing arm includes an upper swing arm 7 and a lower swing arm 8. The lower part of the lower swing arm 8 is provided with a swing arm hinge seat 81. The suspension support frame 2 is provided with a first hinge seat 21 of the bracket, a second hinge seat 22 of the bracket and a third hinge seat 23 of the bracket. 22 is located at the upper part of the suspension support frame 2, the third hinge seat 23 of the support is located at the lower part of the suspension support frame 2, one end of the upper swing arm 7 is hinged on the second hinge seat 22 of the support, the other end of the upper swing arm 7 is hinged to the upper part of the wheel bracket 91, one end of the lower swing arm 8 is hinged on the third hinge seat 23 of the support, the other end of the lower swing arm 8 is hinged to the lower part of the wheel bracket 91, and the swing arm hinge seat 81 is close to the lower part of the wheel bracket 91; the upper end of the push-pull rod 4 is hinged on the vehicle beam 1, the lower end of the push-pull rod 4 is hinged to one end of the lever 5, the middle part of the lever 5 is hinged to the first hinge seat 21 of the support, the other end of the lever 5 is hinged to the upper end of the shock absorber 6, and the lower end of the shock absorber 6 is hinged to the swing arm hinge seat 81. The upper part of the vehicle beam 1 is provided with a first beam hinge seat 11, the middle part of the vehicle beam 1 is provided with a second beam hinge seat 12, the front end of the suspension support frame 2 is provided with a fourth support hinge seat 24, the rear end of the suspension support frame 2 is hinged on the second beam hinge seat 12, the cylinder body of the hydraulic oil cylinder 3 is hinged on the first beam hinge seat 11, and the telescopic rod of the hydraulic oil cylinder 3 is hinged on the fourth support hinge seat 24. The upper part of the vehicle beam 1 is also provided with a third beam hinge seat 13, and the upper end of the push-pull rod 4 is hinged on the third beam hinge seat 13. The upper end of the push-pull rod 4 is hinged to the third beam hinge seat 13 through a fisheye bearing, and the lower end of the push-pull rod 4 is hinged to the lever 5 through a fisheye bearing.

[0017] During operation, the hydraulic cylinder 3 controls the retraction of the telescopic rod to make the suspension support frame 2 tilt upward with the third hinge seat 13 of the beam as the center, so that the wheel 9 rises accordingly. At this time, the push-pull rod 4 presses one end of the lever 5 downward to make the lever 5, and the lever 5 lifts the other end upward with the first hinge seat 21 of the bracket as the center, so that the shock absorber 6 pulls up the lower arm 8 to drive the wheel 9 to rise. During the rising process, the wheel 9 rises with the rising of the suspension support frame 2, and then the wheel 9 continues to rise through the lever 5, so that the rising stroke of the wheel 9 is increased, and the decline is vice versa.

Claims

1. A single-lever double-lift suspension device, comprising a vehicle beam and wheels, characterized in that: It also includes a suspension support frame, a push-pull rod, a lever, a shock absorber and a swing arm, the rear end of the suspension support frame is hinged to the middle part of the vehicle frame, and the front end of the suspension support frame is hinged to the upper part of the vehicle frame through a hydraulic cylinder; the suspension support frame is provided with a first hinge seat of the bracket, the upper end of the push-pull rod is hinged to the vehicle frame, the lower end of the push-pull rod is hinged to one end of the lever, the middle part of the lever is hinged to the first hinge seat of the bracket, the other end of the lever is hinged to the upper end of the shock absorber, the lower end of the shock absorber is hinged to the lower part of the swing arm, one end of the swing arm is hinged to the suspension support frame, and the other end of the swing arm is connected to the wheel through the wheel bracket.

2. The single-lever double-lift suspension device according to claim 1, characterized in that: The swing arm includes an upper swing arm and a lower swing arm, the lower part of the lower swing arm is provided with a swing arm hinge seat, the upper and lower parts of the suspension support frame are respectively provided with a bracket second hinge seat and a bracket third hinge seat, one end of the upper swing arm is hinged to the bracket second hinge seat, the other end of the upper swing arm is hinged to the upper part of the wheel bracket, one end of the lower swing arm is hinged to the bracket third hinge seat, the other end of the lower swing arm is hinged to the lower part of the wheel bracket, and the lower end of the shock absorber is hinged to the swing arm hinge seat.

3. The single-lever double-lift suspension device according to claim 2, characterized in that: A first hinge seat is provided at the upper part of the vehicle beam, a second hinge seat is provided at the middle part of the vehicle beam, a fourth hinge seat is provided at the front end of the suspension support frame, and the rear end of the suspension support frame is hinged to the second hinge seat of the beam. The cylinder body of the hydraulic cylinder is hinged to the first hinge seat of the beam, and the telescopic rod of the hydraulic cylinder is hinged to the fourth hinge seat of the bracket.

4. The single-lever double-lift suspension device according to claim 3, characterized in that: The upper part of the vehicle beam is also provided with a beam third hinge seat, and the upper end of the push-pull rod is hinged on the beam third hinge seat.

5. The single-lever double-lift suspension device according to claim 4, characterized in that: The upper end of the push-pull rod is hinged to the third hinge seat of the beam through a fisheye bearing, and the lower end of the push-pull rod is hinged to the lever through a fisheye bearing.

Images