A vehicle shock absorber

Abstract

The present application relates to the field of shock absorber, especially a kind of vehicle shock absorber, including fixed on the side of mounting plate push rod, and the fixed hole being arranged on push rod, and rotating on push rod cross connecting rod, and the two U-shaped sliding groove being arranged on cross connecting rod, and sliding pin being slid in two U-shaped sliding groove, and sliding pin being arranged on the upper end of vertical connecting rod.Vertical connecting rod is slid in the sliding groove on adjusting seat, and the lower end of vertical connecting rod is fixed with push-pull rod, and push-pull rod is slid in the pipe in adjusting seat, and spring III is fixed between push-pull rod and adjusting seat.Adjusting seat is fixed on cylinder body, and the pipe in adjusting seat is through to cylinder body, and piston rod is slid in cylinder body, and piston rod is fixed on the side of mounting plate.Spring seat is rotated on cross connecting rod, and spring II is fixed on spring seat, and the other end of spring II is fixed below support plate.The present application can automatically adjust the softness and hardness of shock absorber according to the size of impact received during vehicle driving.

Description

Technical Field

[0001] This invention relates to the field of shock absorbers, and in particular to a vehicle shock absorber. Background Technology

[0002] Shock absorbers are fragile components in a car's operation. Their performance affects both the vehicle's stability and the lifespan of other parts, so they should always be in good working order. Shock absorbers are crucial for absorbing shocks from earthquakes and road impacts as the springs bounce back. While the springs filter vibrations from uneven surfaces, they also reciprocate, and the shock absorbers suppress this bouncing. If the shock absorbers are too soft, the car will bounce up and down; if they are too stiff, they will create too much resistance, hindering the springs' proper function. When modifying the suspension system, stiffer shock absorbers need to be matched to stiffer springs. The spring stiffness is closely related to the vehicle's weight, so heavier vehicles often use stiffer shock absorbers. Shock absorbers are connected to the crankshaft, which induces impacts, to counteract the crankshaft's torsional vibrations. Currently, most shock absorbers on vehicles require manual adjustment by a mechanic, and some are not adjustable, necessitating replacement of the shock absorber springs. Summary of the Invention

[0003] The purpose of this invention is to provide a vehicle shock absorber that can automatically adjust the stiffness of the shock absorber according to the magnitude of the impact experienced by the vehicle during driving.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A vehicle shock absorber includes a push rod fixed to the upper side of a mounting plate, a fixing hole disposed on the push rod, a cross link rotatably mounted on the push rod, two U-shaped grooves disposed on the cross link, a sliding pin sliding within the two U-shaped grooves, and the sliding pin being disposed at the upper end of a vertical link.

[0006] The vertical connecting rod slides in the groove on the adjusting seat. A push-pull rod is fixed to the lower end of the vertical connecting rod. The push-pull rod slides in the pipe inside the adjusting seat. A spring III is fixed between the push-pull rod and the adjusting seat.

[0007] The adjusting seat is fixed on the cylinder body, and the pipe inside the adjusting seat extends into the cylinder body. A piston rod slides inside the cylinder body and is fixed to the upper side of the mounting plate.

[0008] A spring seat is rotatably mounted on the cross link, and a spring II is fixed on the spring seat. The other end of the spring II is fixed below the support plate. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of the shock absorber;

[0010] Figure 2 is a structural schematic diagram of an adaptive device;

[0011] Figure 3 is a structural schematic diagram of a damping device;

[0012] Figure 4 is a structural schematic diagram of an impact receiving device;

[0013] Figure 5 is a half cut structural schematic diagram of an impact receiving device Figure 1 ;

[0014] Figure 6 is a half cut structural schematic diagram of an impact receiving device Figure 2 ;

[0015] Figure 7 is a partial enlarged structural schematic diagram of Figure 6 ;

[0016] Figure 8 is a structural schematic diagram of an adjusting device;

[0017] Figure 9 is a structural schematic diagram of an extension device;

[0018] Figure 10 is a half cut structural schematic diagram of an extension device Figure 1 ;

[0019] Figure 11 is a half cut structural schematic diagram of an extension device Figure 2 .

[0020] In the figure:

[0021] wheel 101; support shaft 102; fixed plate 103; spring I 104; mounting plate 105; swing shaft seat 106; swing shaft 107;

[0022] push rod 201; fixed hole 202; spring II 203; sliding pin 204; horizontal connecting rod 205; vertical connecting rod 206; spring seat 207;

[0023] piston rod 301; cylinder 302; adjusting seat 303; push-pull rod 304; spring III 305;

[0024] frame 401; support plate 402; extension rod 403; sliding block 404; rack I 405; rack II 406; gear 407; gear seat 408; hydraulic cylinder 409. DETAILED DESCRIPTION

[0025] As shown in Figures 1-11 :

[0026] A kind of vehicle shock absorber, push rod 201 is fixed on the upper side of mounting plate 105, fixed hole 202 is arranged on the upper end of push rod 201, the short shaft of cross connecting rod 205 rotates in fixed hole 202, two U-shaped sliding grooves are arranged on cross connecting rod 205, sliding pin 204 slides in U-shaped sliding groove, sliding pin 204 is arranged on the upper end of vertical connecting rod 206.

[0027] When being impacted, mounting plate 105 will move up and down, push rod 201 fixed on mounting plate 105 will also move, cross connecting rod 205 and push rod 201 are connected by fixed hole 202 arranged on push rod 201, the side of cross connecting rod 205 connected with push rod 201 is provided with a short rotating shaft, the rotating shaft rotates in fixed hole 202 of push rod 201, when push rod 201 pushes or pulls cross connecting rod 205, fixed hole 202 limits the movement of cross connecting rod 205, cross connecting rod 205 can only move with push rod 201 and provide rotating support; Hollow U-shaped sliding groove is arranged on the upper of cross connecting rod 205, to provide movement track for sliding pin 204 on vertical connecting rod 206, so that sliding pin 204 can slide in cross connecting rod 205, when vertical connecting rod 206 drives sliding pin 204 to slide in cross connecting rod 205, the length of force arm of cross connecting rod 205 on both sides of sliding pin 204 is changed, so that the size of force applied to both ends of cross connecting rod 205 is changed, lever principle is applied, that is to say, in the case of same elongation, the farther sliding pin 204 is from spring II 203 rotating at one end of cross connecting rod 205, the greater force needs to be applied to the other end of cross connecting rod 205, the greater impact load is received in the process of vehicle driving, the farther sliding pin 204 is from spring II 203, the stiffer overall shock absorber is, to improve driving comfort, when cross connecting rod 205 rotates, sliding pin 204 on vertical connecting rod 206 acts as rotating center.

[0028] In use, vertical connecting rod 206 moves to corresponding position according to the size of impact, vertical connecting rod 206 drives sliding pin 204 to move in U-shaped sliding groove of cross connecting rod 205, to change the length of force arm of cross connecting rod 205 on both ends, when being impacted, mounting plate 105 drives push rod 201 to move upward, cross connecting rod 205 connected with push rod 201 through fixed hole 202 moves upward, one end of cross connecting rod 205 connected with spring II 203 moves downward, spring II 203 is stretched.

[0029] As shown in Figures 3-6

[0030] Sliding groove in adjusting seat 303 slides vertical connecting rod 206, push-pull rod 304 is fixed on the lower end of vertical connecting rod 206, push-pull rod 304 slides in the pipeline in adjusting seat 303, spring III 305 is arranged between push-pull rod 304 and adjusting seat 303.

[0031] ​When the vertical connecting rod 206 moves, the lower end of the vertical connecting rod 206 slides in the groove arranged at the upper end of the adjusting seat 303, the groove limits the front and back movement of the vertical connecting rod 206, and only left and right movement along the direction of the groove is allowed, the push-pull rod 304 can slide in the pipe of the adjusting seat 303, and the other end of the push-pull rod 304 is fixed to the lower end of the vertical connecting rod 206. When the air pressure is constant, the push-pull rod 304 will be pushed to slide in the pipe, and the push-pull rod 304 can drive the vertical connecting rod 206 to move. The spring III 305 is fixed between the push-pull rod 304 and the adjusting seat 303, and functions to return the push-pull rod 304 to the original position. When the pressure decreases, the spring III 305 can push the push-pull rod 304 back. The spring III 305 also functions to set the pressure control threshold. The greater the impact on the vehicle, the greater the pressure in the pipe, and the greater the compression of the spring III 305. The longer the pipe portion of the push-pull rod 304 extends out of the adjusting seat 303, the farther the vertical connecting rod 206 can be pushed.

[0032] In use, when the vehicle runs on a bumpy road section, the pressure in the pipe of the adjusting seat 303 fluctuates, the pressure drives the push-pull rod 304 to move in the pipe, the spring III 305 is compressed, the pressure decreases, the spring III 305 pushes the push-pull rod 304 back, the other end of the push-pull rod 304 is fixed to the vertical connecting rod 206, and the push-pull rod 304 moves while driving the vertical connecting rod 206 to reciprocally slide in the groove of the adjusting seat 303.

[0033] As shown in Figure 6

[0034] The cylinder body 302 is fixed with the adjusting seat 303, and a pipe is arranged in the shell of the cylinder body 302 and the inside of the adjusting seat 303, the pipe penetrates into the cylinder body 302, and the piston rod 301 slides in the cylinder body 302. The upper side of the mounting plate 105 is fixed with the piston rod 301.

[0035] The adjusting seat 303 is fixed with the cylinder body 302, the overall rigidity is increased, and the structure is more compact. A communicating pipe is arranged in the shell of the cylinder body 302 and the adjusting seat 303, and is used for circulation of high-pressure gas. When an impact load is received, the piston rod 301 moves up and down with the mounting plate 105. When the piston rod 301 moves upward, the gas in the cylinder body 302 is compressed, the pressure in the cylinder body 302 rises, the high-pressure gas directly acts on the push-pull rod 304 through the pipe, and the push-pull rod 304 slides. The pipe is arranged in the shell of the cylinder body 302 and the adjusting seat 303, avoiding the use of an external pipe. Because the external pipe is exposed, it is easy to be damaged. Moreover, the wall of the external pipe is generally thin, and cannot withstand the instantaneous pressure generated by the vehicle when running on a bumpy road for a long time, and the risk of damage is greater. Moreover, when the gas in the cylinder body 302 is compressed, a large amount of heat is generated, and the shell of the cylinder body 302 and the adjusting seat 303 have a large heat dissipation area, and can be well heat dissipated. ​

[0036] In use, the installation plate 105 moves up and down to drive the piston rod 301 to slide in the cylinder 302, and when the piston rod 301 slides, the gas in the cylinder 302 is compressed, and the compressed gas acts on the push-pull rod 304 through the pipeline in the outer shell of the cylinder 302 and the adjusting seat 303, so that the push-pull rod 304 can slide in the pipeline.

[0037] As shown in the figure: Figure 8

[0038] The spring seat 207 is rotatably arranged on the cross connecting rod 205, the spring II 203 is fixed on the spring seat 207, and the other end of the spring II 203 is fixed on the support plate 402.

[0039] The spring seat 207 is rotatably arranged on the cross connecting rod 205, the spring II 203 is fixed on the spring seat 207, and the other end of the spring II 203 is fixed on the support plate 402.

[0040] In use, the cross connecting rod 205 rotates under stress, the end of the cross connecting rod 205 connected to the spring II 203 moves upward, and the spring seat 207 rotatably arranged on the cross connecting rod 205 moves upward together with the spring II 203, and the upward movement of the spring seat 207 compresses the spring II 203 fixed on the spring seat 207.

[0041] As shown in the figure: Figure 2

[0042] The two springs I 104 are symmetrically arranged on the lower side of the installation plate 105, the other end of the spring I 104 is fixed on the upper side of the fixed plate 103, the two support shafts 102 are symmetrically fixed on the lower side of the fixed plate 103, and the two wheels 101 are rotatably arranged on the two support shafts 102 respectively.

[0043] ​​Two springs 104 are symmetrically arranged between the mounting plate 105 and the fixed plate 103, which can reduce the shock to some extent, and more importantly, the two springs 104 on both sides can be compressed and stretched respectively according to the swing of the fixed plate 103, and two support shafts 102 with wheels 101 are fixed below the fixed plate 103, which can better fit the ground and increase the grip according to different terrains, and the two wheels 101 can be at different heights in complex terrain, which can push the fixed plate 103 to tilt and swing through the support shaft 102, and the two springs 104 symmetrically arranged between the mounting plate 105 and the fixed plate 103 can be compressed and stretched respectively to ensure the stability of the mounting plate 105.

[0044] In use, the two wheels 101 move at different heights, respectively driving the support shaft 102 to move, and the two support shafts 102 force the fixed plate 103 to tilt, and the two springs 104 are compressed and stretched respectively, while the mounting plate 105 fixed to the other end of the two springs 104 remains horizontal.

[0045] The swing shaft 107 is fixed below the mounting plate 105, and the swing shaft 107 rotates in the swing shaft seat 106, and the upper side of the fixed plate 103 is fixed with the swing shaft seat 106.

[0046] The swing shaft seat 106 is fixed on the fixed plate 103, and the swing shaft 107 is fixed below the mounting plate 105, and the connection between the fixed plate 103 and the mounting plate 105 is indirectly realized through the swing shaft seat 106 and the swing shaft 107. The swing shaft 107 can rotate in the swing shaft seat 106 to provide a fulcrum for the relative movement of the fixed plate 103 and the mounting plate 105. When the fixed plate 103 swings, the swing shaft seat 106 fixed on the fixed plate 103 is relatively stationary, so the fixed plate 103 can swing up and down with the swing shaft seat 106 as the center. At the same time, the swing shaft 107 supports the fixed plate 103 and the mounting plate 105, so that the centers of the two plates always maintain a certain distance, leaving space for the swing of the fixed plate 103.

[0047] In use, the fixed plate 103 swings, and the swing shaft 107 fixed below the mounting plate 105 rotates in the swing shaft seat 106.

[0048] Two connecting plates are fixed on both sides of the support plate 402, the adjusting seat 303 is fixed at the lower end of the two connecting plates, the extension rod 403 is fixed on the support plate 402, the sliding block 404 is fixed at the other end of the extension rod 403, and the sliding block is slidably arranged in the rack 401.

[0049] Two connecting rods are used to connect and fix the support plate 402 and the adjusting seat 303, so that the support plate 402 can move with the adjusting seat 303 and the device above the adjusting seat 303, and play a supporting and fixing role. An extension rod 403 is used to connect between the sliding block 404 and the support plate 402, and the extension rod 403 is used to extend the height of the entire shock absorber. When the sliding block 404 slides and extends, the extension rod 403 can drive the structure below the support plate to extend, and when the height difference between the two sides of the vehicle is too large, the extension rod 403 can be used for height compensation, so that the vehicle can be kept as horizontal as possible, and the driving experience is improved. A square sliding groove is arranged in the rack 401 and matched with the sliding block 404, so that the sliding block 404 can slide in the rack 401 without rotating.

[0050] In use, the sliding block 404 slides in the rack 401, the sliding block 404 drives the extension rod 403 to move synchronously, the extension rod 403 is fixed with the support plate 402, so that the support plate 402 and the structure below the support plate 402 move together, so that the vehicle can always keep horizontal.

[0051] As shown in Figures 9-11

[0052] The rack I 405 is fixed on the sliding block 404, the rack I 405 and the rack II 406 are symmetrically arranged, the gear 407 is respectively meshed with the rack I 405 and the rack II 406, and the rack II 406 is fixed in the rack 401.

[0053] The rack II 406 is fixed in the rack 401, when the gear 407 moves between the rack I 405 and the rack II 406, the gear 407 rotates clockwise, the rack I 405 moves downward, when the gear 407 rotates counterclockwise, the rack I 405 moves upward, so as to realize driving long distance movement with short distance movement, the structure is more compact, and the transmission efficiency is higher, the precision is high, and a larger impact load can be borne.

[0054] In use, the gear 407 rotates, the gear 407 is meshed with the rack II 406, the rack II 406 is fixed in the rack 401, the gear 407 rotates along the vertical direction of the rack II 406, on the other side, the gear 407 is meshed with the rack I 405, the movement direction of the rack I 405 and the gear 407 is same, and the sliding block 404 fixed with the rack I 405 moves simultaneously.

[0055] Two center shafts are arranged on the two sides of the gear 407 respectively, and the two center shafts of the gear 407 rotate in the gear seat 408. The gear seat 408 is used for installing the gear 407, so that the gear 407 can rotate in the gear seat 408 through the two center shafts, and the gear 407 can be connected with the driving mechanism through the gear seat 408, so that the gear 407 can move up and down.

[0056] ​The hydraulic cylinder 409 has its hydraulic rod fixed to the gear carrier 408, and the machine frame 401 has a hydraulic cylinder fixed thereto. The hydraulic cylinder 409 is used to drive the gear 407 by pushing the gear carrier 408, the hydraulic cylinder 409 can provide more direct linear motion, and the hydraulic cylinder 409 can provide sufficient pushing force, and when distance compensation is needed, the vehicle can be supported.

Claims

1. A vehicle shock absorber, characterized in that: It includes a push rod (201) fixed on the upper side of the mounting plate (105), a fixing hole (202) provided on the push rod (201), a horizontal connecting rod (205) rotating on the push rod (201), two U-shaped sliding grooves provided on the horizontal connecting rod (205), and a sliding pin (204) sliding in the two U-shaped sliding grooves, and the sliding pin (204) is provided at the upper end of the vertical connecting rod (206); The vertical connecting rod (206) slides in the groove on the adjusting seat (303), and a push-pull rod (304) is fixed at the lower end of the vertical connecting rod (206). The push-pull rod (304) slides in the pipe inside the adjusting seat (303), and a spring III (305) is fixed between the push-pull rod (304) and the adjusting seat (303). The adjusting seat (303) is fixed on the cylinder body (302), and the pipe inside the adjusting seat (303) extends into the cylinder body (302). A piston rod (301) slides inside the cylinder body (302), and the piston rod (301) is fixed on the upper side of the mounting plate (105).

2. A vehicle shock absorber according to claim 1, characterized in that: A spring seat (207) is rotatably mounted on the cross link (205), and a spring II (203) is fixed on the spring seat (207). The other end of the spring II (203) is fixed below the support plate (402).

3. A vehicle shock absorber according to claim 1, characterized in that: Two springs I (104) are symmetrically arranged on the lower side of the mounting plate (105). The other end of each spring I (104) is fixed to the upper side of the fixing plate (103). Two support shafts (102) are symmetrically fixed on the lower side of the fixing plate (103). The other end of each support shaft (102) has a wheel (101) that rotates.

4. A vehicle shock absorber according to claim 3, characterized in that: A swing shaft (107) is fixed below the mounting plate (105). The swing shaft (107) rotates inside the swing shaft seat (106), which is fixed on the upper side of the fixing plate (103).

5. A vehicle shock absorber according to claim 3, characterized in that: It also includes a support plate (402), on which two connecting plates are fixed on both sides. The lower ends of the two connecting plates are fixed on both sides of the adjusting seat (303). An extension rod (403) is fixed on the support plate (402), and a slider (404) is fixed on the other end of the extension rod (403). The slider (404) slides inside the frame (401).

6. A vehicle shock absorber according to claim 5, characterized in that: The slider (404) is fixed with rack I (405), rack I (405) meshes with gear (407), and the other side of gear (407) meshes with rack II (406). Rack II (406) is fixed in the frame (401).

7. A vehicle shock absorber according to claim 6, characterized in that: The gear (407) has a central shaft at its center, and the central shaft rotates within the gear seat (408).

8. A vehicle shock absorber according to claim 7, characterized in that: The gear seat (408) is fixed with the hydraulic rod of the hydraulic cylinder (409), and the hydraulic cylinder (409) is fixed on the frame (401).

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