A series spring shock absorber

Abstract

The present invention discloses a series spring shock absorber, comprising a top plate and a bottom plate, wherein the top plate is located directly above the bottom plate, a movable rod is arranged between the top plate and the bottom plate, the top of the movable rod is elastically connected to the top plate through a first extrusion spring, and the bottom is elastically connected to the bottom plate through a second extrusion spring, a fixed plate is sleeved on the outer wall of the movable rod, and the bottom of the fixed plate is fixedly connected to the bottom plate through an electric telescopic rod. In the present invention, the top plate and the bottom plate are respectively connected to devices that need to be shock-absorbed, and then the intensity of shock absorption can be adjusted, and the electric telescopic rod is started to drive the fixed plate to squeeze the first extrusion spring or the second extrusion spring, thereby changing the elastic strength of the first extrusion spring or the second extrusion spring, and then when the first extrusion spring or the second extrusion spring is stressed, the compression degree is different, and the function of adjustable shock absorption intensity of the shock absorber is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of shock absorbers, and in particular to a series spring shock absorber. Background Art

[0002] Shock absorbers are used to suppress the shock caused by the rebound of springs after absorbing shock and the impact from the road surface. They are widely used in automobiles to accelerate the attenuation of frame and body vibrations to improve the driving smoothness of the car. When passing through uneven roads, although the shock-absorbing spring can filter the vibration of the road, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jumping.

[0003] However, the existing shock absorbers still have shortcomings during use. First, the shock absorption strength of the existing shock absorbers cannot be adjusted, which reduces the use range of the shock absorbers. Second, the existing shock absorbers experience too many ups and downs during the release of elastic potential energy, and the shock absorption effect is weak. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a series spring shock absorber.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A series spring shock absorber comprises a top plate and a bottom plate, wherein the top plate is located directly above the bottom plate, a movable rod is arranged between the top plate and the bottom plate, the top of the movable rod is elastically connected to the top plate via a first extrusion spring, and the bottom is elastically connected to the bottom plate via a second extrusion spring, a fixed plate is sleeved on the outer wall of the movable rod, and the bottom of the fixed plate is fixedly connected to the bottom plate via an electric telescopic rod, two sliding rods are symmetrically arranged on both sides of the top horizontal end of the bottom plate, sliding sleeves are sleeved on the two sliding rods, and the sliding sleeve is rotatably connected to the top plate via a support rod.

[0007] As a further description of the above technical solution:

[0008] Both ends of the vertical end of the movable rod are respectively welded to the first extrusion spring and the second extrusion spring through connecting plates.

[0009] As a further description of the above technical solution:

[0010] The fixed plate is slidably connected to the movable rod, and there is a clearance fit between the fixed plate and the movable rod.

[0011] As a further description of the above technical solution:

[0012] There are two electric telescopic rods in total, and the two electric telescopic rods are respectively located on both sides of the horizontal end of the second extrusion spring, and the two electric telescopic rods are electrically connected to an external power supply.

[0013] As a further description of the above technical solution:

[0014] Both ends of the two sliding rods are welded to the bottom plate through fixing blocks.

[0015] As a further description of the above technical solution:

[0016] Both ends of the sliding sleeve are elastically connected to the fixing block via a third extrusion spring.

[0017] As a further description of the above technical solution:

[0018] Both ends of the support rod are rotatably connected to the top plate and the sliding sleeve respectively through a connecting seat, wherein the support rod and the connecting seat are rotatably connected through a pin shaft.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] 1. In the present invention, the top plate and the bottom plate are respectively connected to the device that needs to be shock-absorbed, and then the intensity of the shock absorption can be adjusted. The electric telescopic rod is started to drive the fixed plate to squeeze the first extrusion spring or the second extrusion spring, thereby changing the elastic strength of the first extrusion spring or the second extrusion spring, so that when the first extrusion spring or the second extrusion spring is subjected to force, the compression degree is different, thereby realizing the function of adjustable shock absorption intensity of the shock absorber.

[0021] 2. In the present invention, when the top plate or the bottom plate is subjected to force, the first extrusion spring and the second extrusion spring will be forced to shrink, and at the same time, the support rod will be tilted under the action of pressure, thereby changing the distance between the bottom ends of the two support rods, so that the sliding sleeve can slide on the sliding rod. On the one hand, part of the impact force can be decomposed by the sliding rod, and on the other hand, the number of times the sliding sleeve falls can be reduced by the third extrusion spring, the speed at which the shock absorber releases elastic potential energy can be weakened, and the shock absorption stability of the shock absorber can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the shock absorber in the present invention;

[0023] Figure 2 It is a schematic diagram of the side structure of the shock absorber in the present invention;

[0024] Figure 3 It is a schematic diagram of the top view structure of the bottom plate of the present invention.

[0025] Legend:

[0026] 1. Top plate; 2. First extrusion spring; 3. Connecting seat; 4. Support rod; 5. Bottom plate; 6. Movable rod; 7. Connecting plate; 8. Second extrusion spring; 9. Electric telescopic rod; 10. Fixed plate; 11. Sliding sleeve; 12. Sliding rod; 13. Fixed block; 14. Third extrusion spring. DETAILED DESCRIPTION

[0027] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] The model of the electric telescopic rod 9 involved in the present invention is: (XTL-100 electric telescopic rod).

[0029] Reference Figure 1-3 A series spring shock absorber includes a top plate 1 and a bottom plate 5. The top plate 1 is located directly above the bottom plate 5. A movable rod 6 is arranged between the top plate 1 and the bottom plate 5. The top of the movable rod 6 is elastically connected to the top plate 1 through a first extrusion spring 2, and the bottom is elastically connected to the bottom plate 5 through a second extrusion spring 8. A fixed plate 10 is sleeved on the outer wall of the movable rod 6, and the bottom of the fixed plate 10 is fixedly connected to the bottom plate 5 through an electric telescopic rod 9. Two sliding rods 12 are symmetrically arranged on both sides of the top horizontal end of the bottom plate 5. A sliding sleeve 11 is sleeved on the two sliding rods 12, and the sliding sleeve 11 is rotatably connected to the top plate 1 through a support rod 4.

[0030] Both ends of the vertical end of the movable rod 6 are welded to the first extrusion spring 2 and the second extrusion spring 8 respectively through the connecting plate 7, the fixed plate 10 is slidably connected to the movable rod 6, and the fixed plate 10 and the movable rod 6 are clearance-fitted, a total of two electric telescopic rods 9 are provided, and the two electric telescopic rods 9 are respectively located on both sides of the horizontal end of the second extrusion spring 8, and the two electric telescopic rods 9 are electrically connected to the external power supply, both ends of the two sliding rods 12 are welded to the bottom plate 5 through the fixed block 13, both ends of the sliding sleeve 11 are elastically connected to the fixed block 13 through the third extrusion spring 14, and both ends of the support rod 4 are rotatably connected to the top plate 1 and the sliding sleeve 11 respectively through the connecting seat 3, wherein the support rod 4 and the connecting seat 3 are rotatably connected through a pin shaft.

[0031] The third extrusion springs 14 are arranged at both ends of the sliding sleeve 11. Through the interaction of the two third extrusion springs 14, the release speed of the elastic potential energy is weakened, the ups and downs of the shock absorber are reduced, and the shock absorption effect is improved.

[0032] Working principle: When in use, the top plate 1 and the bottom plate 5 are respectively connected to the device that needs shock absorption, and then the intensity of shock absorption can be adjusted. The electric telescopic rod 9 is started, and the first extrusion spring 2 or the second extrusion spring 8 is squeezed by driving the fixed plate 10, thereby changing the elastic strength of the first extrusion spring 2 or the second extrusion spring 8, so that when the first extrusion spring 2 or the second extrusion spring 8 is subjected to force, the compression degree is different, thereby realizing the function of adjustable shock absorption strength of the shock absorber. When the adjustment is completed, when the top plate 1 or the bottom plate 5 is subjected to force, the first extrusion spring 2 and the second extrusion spring 8 will be forced to shrink, and at the same time, the support rod 4 will tilt under the action of pressure, thereby changing the distance between the bottom ends of the two support rods 4, so that the sliding sleeve 11 slides on the sliding rod 12. On the one hand, part of the impact force can be decomposed by the sliding rod 12, and on the other hand, the number of ups and downs of the sliding sleeve 11 can be reduced by the third extrusion spring 14, thereby reducing the speed at which the shock absorber releases elastic potential energy, and improving the shock absorption stability of the shock absorber.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A series spring shock absorber, comprising a top plate (1) and a bottom plate (5), characterized in that: The top plate (1) is located directly above the bottom plate (5), and a movable rod (6) is arranged between the top plate (1) and the bottom plate (5). The top of the movable rod (6) is elastically connected to the top plate (1) via a first extrusion spring (2), and the bottom is elastically connected to the bottom plate (5) via a second extrusion spring (8). A fixed plate (10) is sleeved on the outer wall of the movable rod (6), and the bottom of the fixed plate (10) is fixedly connected to the bottom plate (5) via an electric telescopic rod (9). Two sliding rods (12) are symmetrically arranged on both sides of the top horizontal end of the bottom plate (5), and the two sliding rods (12) are sleeved with sliding sleeves (11), and the sliding sleeves (11) are rotatably connected to the top plate (1) via a support rod (4); Both ends of the vertical end of the movable rod (6) are respectively welded to the first extrusion spring (2) and the second extrusion spring (8) through a connecting plate (7); The fixed plate (10) and the movable rod (6) are slidably connected, and there is a clearance fit between the fixed plate (10) and the movable rod (6); The electric telescopic rods (9) are provided with two in total, and the two electric telescopic rods (9) are respectively located on both sides of the horizontal end of the second extrusion spring (8), and the two electric telescopic rods (9) are electrically connected to an external power supply; Both ends of the two sliding rods (12) are welded to the bottom plate (5) via a fixing block (13); Both ends of the sliding sleeve (11) are elastically connected to the fixed block (13) via a third extrusion spring (14); Both ends of the support rod (4) are rotatably connected to the top plate (1) and the sliding sleeve (11) respectively via a connecting seat (3), wherein the support rod (4) and the connecting seat (3) are rotatably connected via a pin shaft.

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