Double-spring shock absorber

Abstract

The double-spring shock absorber comprises an upper connecting plate and a lower connecting plate, shock absorption mechanisms are arranged on the left side and the right side of the middle end of the upper connecting plate and the left side and the right side of the middle end of the lower connecting plate respectively, and each shock absorption mechanism comprises a lower stand column, an upper stand column, a shock absorption spring, a sliding cavity, a buffer spring and an extrusion plate. A moving assembly is arranged between the two damping mechanisms, by arranging the damping mechanisms and the two sets of damping mechanisms, the damping capacity of the whole device can be improved, the bearing weight of the whole device can be shared, the bearing weight of the whole device is more uniform, and the device adapts to various damping environments; the position of the damping mechanism located on the right side can be changed, when the two sets of damping mechanisms are pressed, the damping mechanism on the right side can move rightwards through the moving assembly, and therefore the distance between the two sets of damping mechanisms is changed, and when the whole device is extruded by external force, extrusion force can be evenly shared by the two sets of damping mechanisms.

Description

Technical Field

[0001] The utility model relates to a double-spring shock absorber, belonging to the technical field of shock absorbers. Background Art

[0002] Shock absorbers are used to suppress the vibration caused by the rebound of the spring after absorbing shock and the impact from the road. 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 out the vibration of the road, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jump.

[0003] A Chinese patent (publication number: CN 217977144 U) discloses a double spring shock absorber, comprising a cylinder, a lower support seat is sleeved on the outer surface of the cylinder, a first annular groove is provided on the upper surface of the lower support seat, and a through opening is provided on the outer surface of the first annular groove, an annular movable block is provided inside the first annular groove, a lifting assembly is provided inside the lower support seat, a piston rod is inserted inside the cylinder, an upper support seat is provided on the top of the piston rod, and a fixing hole is provided inside the upper support seat;

[0004] In the utility model, a threaded rod, a rotating rod and a first bevel gear are arranged. When the rotating rod is rotated, the two groups of first bevel gears drive the two groups of second bevel gears to rotate, and drive the two groups of threaded rods to rotate. The two groups of threaded rods are restricted by the two groups of threaded grooves, so that when the two groups of threaded rods rotate, they will drive the annular movable block to move up and down, thereby achieving the purpose of adjusting the spring height and improving the comfort. Although the above patent improves the shock absorption effect by arranging two groups of springs, and also adds a component that can adjust the spring height, it is essentially only one shock-absorbing spring, which cannot share the weight, resulting in the weight that one shock-absorbing spring has to bear is too large, and the shock absorption effect is also poor.

[0005] To this end, a double spring shock absorber is proposed. Utility Model Content

[0006] In view of this, the utility model provides a double spring shock absorber to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0007] The technical solution of the utility model is implemented as follows: a double spring shock absorber, including an upper connecting plate and a lower connecting plate, shock absorbing mechanisms are arranged on the left and right sides of the middle ends of the upper connecting plate and the lower connecting plate, the shock absorbing mechanism includes a lower column, an upper column, a shock absorbing spring, a sliding cavity, a buffer spring and an extrusion plate, a moving assembly is arranged between the two shock absorbing mechanisms, and the moving assembly includes a connecting rod and a moving rod.

[0008] Further preferably, the lower column is located at the middle end of the upper connecting plate and the lower connecting plate, and the bottom of the lower column located on the left side is fixedly connected to the left side of the top of the lower connecting plate, the upper column is arranged at the top of the lower column, and the top of the upper column located on the left side is fixedly connected to the left side of the bottom of the upper connecting plate, the shock-absorbing spring is wound around the outer surface of the upper column, and the top and bottom of the shock-absorbing spring respectively conflict with the bottom of the upper connecting plate and the top of the lower column, the sliding cavity is opened on the inner surface of the lower column, and the buffer spring is arranged on the inner side of the sliding cavity.

[0009] Further preferably, there are two connecting rods, which are respectively fixedly connected to the inner sides of the two lower columns, the inner sides of the connecting rods are rotatably connected to triangular plates via a rotating shaft, the inner sides of the front and rear sides of the triangular plates are rotatably connected to swing rods via a rotating shaft, the moving rod is located on the inner sides of the two connecting rods, the front and rear sides of the moving rod are fixedly connected to limiting plates, the front and rear sides of the outer surface of the moving rod are slidably connected to sliding sleeves, the left and right sides of the sliding sleeves are fixedly connected to connecting blocks, and the inner sides of the connecting blocks are rotatably connected to the other end of the swing rod via a rotating shaft.

[0010] Further preferably, the extrusion plate is fixedly connected to the bottom of the upper column, and the extrusion plate is slidably connected to the inner side of the sliding cavity, and the top and bottom of the buffer spring are respectively in conflict with the bottom of the extrusion plate and the bottom of the sliding cavity.

[0011] Further preferably, a compression spring is wound around the outer surface of the moving rod, and the front and rear sides of the compression spring are respectively in contact with the inner sides of the two sliding sleeves.

[0012] Further preferably, a T-shaped groove is opened on the right side of the inner side of the upper connecting plate and the lower connecting plate, and the top and bottom of the shock absorbing mechanism located on the right side are fixedly connected with a T-shaped slider, and the T-shaped slider is slidably connected to the inner side of the T-shaped groove.

[0013] Further preferably, the left and right sides of the upper connecting plate and the lower connecting plate are fixedly connected with fixing plates, the front and rear sides of the top of the fixing plate are slidably connected with bolts, and the bottom of the bolts is provided with threads.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. The utility model provides a shock absorbing mechanism. By providing two groups of shock absorbing mechanisms, the shock absorbing capacity of the entire device can be improved, the weight of the entire device can be shared, the weight of the entire device can be made more uniform, and the device can be adapted to various shock absorbing environments.

[0016] 2. The utility model can change the position of the shock absorbing mechanism on the right side by setting a moving component. When the two groups of shock absorbing mechanisms are subjected to pressure, the shock absorbing mechanism on the right side will move to the right side through the moving component, thereby changing the distance between the two groups of shock absorbing mechanisms. When the overall device is squeezed by external force, the squeezing force can be evenly distributed to the two groups of shock absorbing mechanisms, thereby improving the bearing capacity and shock absorbing effect of the overall device.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the front structure of the main body of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the lower column of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the mobile component of the utility model from a top view;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the upper connecting plate of the utility model.

[0023] Figure numerals: 1. upper connecting plate; 2. lower connecting plate; 3. shock absorbing mechanism; 301. lower column; 302. upper column; 303. shock absorbing spring; 304. sliding chamber; 305. buffer spring; 306. extrusion plate; 4. moving assembly; 401. connecting rod; 402. triangular plate; 403. swing rod; 404. moving rod; 405. limit plate; 406. sliding sleeve; 407. connecting block; 408. compression spring; 5. T-type slide groove; 6. T-type slider; 7. fixing plate; 8. bolt. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figure 1-4 As shown, the embodiment of the utility model provides a double spring shock absorber, including an upper connecting plate 1 and a lower connecting plate 2, shock absorbing mechanisms 3 are arranged on the left and right sides of the middle ends of the upper connecting plate 1 and the lower connecting plate 2, the shock absorbing mechanism 3 includes a lower column 301, an upper column 302, a shock absorbing spring 303, a sliding cavity 304, a buffer spring 305 and an extrusion plate 306, a moving component 4 is arranged between the two shock absorbing mechanisms 3, the moving component 4 includes a connecting rod 401 and a moving rod 404, the lower column 301 is located at the middle ends of the upper connecting plate 1 and the lower connecting plate 2, and The bottom of the lower column 301 located on the left side is fixedly connected to the left side of the top of the lower connecting plate 2, the upper column 302 is arranged on the top of the lower column 301, and the top of the upper column 302 located on the left side is fixedly connected to the left side of the bottom of the upper connecting plate 1, the shock-absorbing spring 303 is wound around the outer surface of the upper column 302, and the top and bottom of the shock-absorbing spring 303 are respectively in conflict with the bottom of the upper connecting plate 1 and the top of the lower column 301, the sliding cavity 304 is opened on the inner surface of the lower column 301, and the buffer spring 305 is arranged on the inner side of the sliding cavity 304.

[0028] By providing the shock absorbing mechanism 3 and two groups of shock absorbing mechanisms 3, the shock absorbing capability of the whole device can be improved, the weight borne by the whole device can be shared, the weight borne by the whole device can be made more uniform, and the weight borne by the whole device can be adapted to various shock absorbing environments.

[0029] Example 2

[0030] In one embodiment, there are two connecting rods 401, which are fixedly connected to the inner sides of the two lower columns 301 respectively. The inner sides of the connecting rods 401 are rotatably connected to the triangular plates 402 through a rotating shaft. The inner sides of the front and rear sides of the triangular plates 402 are rotatably connected to the swing rods 403 through a rotating shaft. The moving rod 404 is located on the inner sides of the two connecting rods 401. The front and rear sides of the moving rod 404 are fixedly connected to the limiting plates 405. The front and rear sides of the outer surface of the moving rod 404 are slidably connected to the sliding sleeves 406. The left and right sides of the sliding sleeves 406 are fixedly connected to the connecting blocks 407, and the inner sides of the connecting blocks 407 are rotatably connected to the other end of the swing rod 403 through a rotating shaft.

[0031] By setting the moving component 4, the position of the shock absorbing mechanism 3 on the right side can be changed. When the two groups of shock absorbing mechanisms 3 are subjected to pressure, the shock absorbing mechanism 3 on the right side will move to the right through the moving component 4, thereby changing the distance between the two groups of shock absorbing mechanisms 3. When the overall device is squeezed by external force, the squeezing force can be evenly distributed to the two groups of shock absorbing mechanisms 3, thereby improving the bearing capacity and shock absorbing effect of the overall device.

[0032] Example 3

[0033] In one embodiment, the extrusion plate 306 is fixedly connected to the bottom of the upper column 302, and the extrusion plate 306 is slidably connected to the inner side of the sliding cavity 304, the top and bottom of the buffer spring 305 are respectively in conflict with the bottom of the extrusion plate 306 and the bottom of the sliding cavity 304, the outer surface of the moving rod 404 is wrapped with a compression spring 408, and the front and rear sides of the compression spring 408 are respectively in conflict with the inner sides of the two sliding sleeves 406, a T-shaped groove 5 is provided on the right side of the inner side of the upper connecting plate 1 and the lower connecting plate 2, the top and bottom of the shock absorbing mechanism 3 on the right side are fixedly connected with a T-shaped slider 6, and the T-shaped slider 6 is slidably connected to the inner side of the T-shaped groove 5, the left and right sides of the upper connecting plate 1 and the lower connecting plate 2 are fixedly connected with a fixing plate 7, the front and rear sides of the top of the fixing plate 7 are slidably connected with a bolt 8, and the bottom of the bolt 8 is provided with a thread.

[0034] By providing the extrusion plate 306, when the upper column 302 moves downward due to external extrusion, the extrusion plate 306 can be driven to move downward, so that the buffer spring 305 is squeezed by the downward force of the extrusion plate 306 to play a buffering role. By providing the T-shaped slide groove 5 and the T-shaped slider 6, the stability of the shock absorbing mechanism 3 located on the right side when moving to the right can be improved. By providing the fixing plate 7 and the bolt 8, the overall device can be easily installed in a preset position.

[0035] When the utility model is working: first, the whole device is installed in the preset position through the fixing plate 7 and the bolt 8. When 1 and 2 are subjected to force, the bolt 8 will slide on the inner side of the fixing plate 7, but the outer side of the bolt 8 will be threadedly connected with the preset position, so that the whole device can be easily moved up and down under the action of the extrusion force. When the top of the upper connecting plate 1 is squeezed, the shock absorbing mechanism 3 on the right side will slide to the right side under the action of the T-shaped slide groove 5 and the T-shaped slider 6, thereby driving the swing rod 403 on the right side to swing. During the swinging process, the swing rod 403 on the right side drives the sliding sleeve 406 to move inward at the same time, and squeezes the compression spring 408, causing the compression spring 408 to deform. The sliding sleeve 406 moves In the process, the swing rod 403 on the left side will also be driven to swing, so that the shock absorbing mechanism 3 on the right side moves to the right more stably, sharing the weight of the top of the upper connecting plate 1, making the shock absorbing effect of the overall device more significant, and after the top of the upper connecting plate 1 is subjected to force, the upper column 302 will drive the extrusion plate 306 to move downward, and the extrusion plate 306 squeezes the buffer spring 305, causing the buffer spring 305 to deform, and in the process of the upper column 302 moving downward, the shock absorbing spring 303 will also be squeezed, and the shock absorbing spring 303 will be deformed. Under the action of the shock absorbing spring 303 and the buffer spring 305, and by setting two sets of shock absorbing mechanisms 3, the shock absorbing effect can be enhanced, and the shock absorbing performance of the overall device is improved.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A double spring shock absorber, Features: The invention comprises an upper connecting plate (1) and a lower connecting plate (2), wherein a shock absorbing mechanism (3) is arranged on the left and right sides of the middle ends of the upper connecting plate (1) and the lower connecting plate (2), wherein the shock absorbing mechanism (3) comprises a lower column (301), an upper column (302), a shock absorbing spring (303), a sliding cavity (304), a buffer spring (305) and an extrusion plate (306), and a moving assembly (4) is arranged between the two shock absorbing mechanisms (3), wherein the moving assembly (4) comprises a connecting rod (401) and a moving rod (404).

2. A double spring shock absorber according to claim 1, Features: The lower column (301) is located at the middle end of the upper connecting plate (1) and the lower connecting plate (2), and the bottom of the lower column (301) located on the left side is fixedly connected to the left side of the top of the lower connecting plate (2); the upper column (302) is arranged on the top of the lower column (301), and the top of the upper column (302) located on the left side is fixedly connected to the left side of the bottom of the upper connecting plate (1); the shock-absorbing spring (303) is wound around the outer surface of the upper column (302), and the top and bottom of the shock-absorbing spring (303) are respectively in conflict with the bottom of the upper connecting plate (1) and the top of the lower column (301); the sliding cavity (304) is opened on the inner surface of the lower column (301), and the buffer spring (305) is arranged on the inner side of the sliding cavity (304).

3. A double spring shock absorber according to claim 2, Features: There are two connecting rods (401), which are respectively fixedly connected to the inner sides of the two lower columns (301); the inner sides of the connecting rods (401) are rotatably connected to a triangular plate (402) via a rotating shaft; the inner sides of the front and rear sides of the triangular plate (402) are rotatably connected to a swing rod (403) via a rotating shaft; the moving rod (404) is located on the inner sides of the two connecting rods (401); the front and rear sides of the moving rod (404) are fixedly connected to a limiting plate (405); the front and rear sides of the outer surface of the moving rod (404) are slidably connected to a sliding sleeve (406); the left and right sides of the sliding sleeve (406) are fixedly connected to a connecting block (407); and the inner sides of the connecting block (407) are rotatably connected to the other end of the swing rod (403) via a rotating shaft.

4. A double spring shock absorber according to claim 2, Features: The extrusion plate (306) is fixedly connected to the bottom of the upper column (302), and the extrusion plate (306) is slidably connected to the inner side of the sliding cavity (304), and the top and bottom of the buffer spring (305) are respectively in contact with the bottom of the extrusion plate (306) and the bottom of the sliding cavity (304).

5. A double spring shock absorber according to claim 3, Features: A compression spring (408) is wound around the outer surface of the moving rod (404), and the front and rear sides of the compression spring (408) are respectively in contact with the inner sides of the two sliding sleeves (406).

6. A double spring shock absorber according to claim 1, Features: A T-shaped slide groove (5) is provided on the right side of the inner side of the upper connecting plate (1) and the lower connecting plate (2), and a T-shaped slide block (6) is fixedly connected to the top and bottom of the shock absorbing mechanism (3) on the right side, and the T-shaped slide block (6) is slidably connected to the inner side of the T-shaped slide groove (5).

7. A double spring shock absorber according to claim 1, Features: The upper connecting plate (1) and the lower connecting plate (2) are fixedly connected to fixing plates (7) on both left and right sides, and the front and rear sides of the top of the fixing plate (7) are slidably connected to bolts (8), and the bottom of the bolts (8) is provided with threads.

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