Automobile shock absorber

Abstract

The invention discloses an automobile shock absorber which comprises a plurality of barrel bodies which are distributed at equal intervals in the circumferential direction. The plurality of piston rods are respectively connected with the cylinders in a sliding manner; the pistons are fixedly connected with the ends, located in the barrel, of the piston rods respectively and are arranged on the inner wall of the barrel in a sealed and sliding mode. The baffles are fixedly connected with the ends, located outside the cylinder body, of the piston rods respectively and fixedly connected with the semi-circle-shaped protruding blocks. The shock absorber leather bag can slightly roll between the cab and the frame along the virtual central axis of the shock absorber leather bag, so that a group of piston rods can always bear impact force caused by obstacles on the road surface more accurately, and the included angle between the virtual axis of the piston rod more accurately selected and the impact force is always minimum; and the component force perpendicular to the virtual axis in the impact force is effectively weakened, so that the counterbalance force of the piston rod and the cylinder body is weakened, and the protection effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of spring shock absorbers, in particular to an automobile shock absorber. Background Art

[0002] Spring shock absorbers are mainly used to suppress the shock caused by the spring rebounding after shock absorption and the impact from the road surface. They are mainly composed of a cylinder, a piston, a piston rod, and a spring.

[0003] During actual use, due to irregular obstacles on the road surface, the shock absorber located between the cab and the frame may be subjected to impact forces in directions not completely along the virtual axis of the piston rod. The impact force acting on the piston rod is divided into a component along the virtual axis of the piston rod and a component perpendicular to the virtual axis. The component along the virtual axis of the piston rod is consumed by spring compression, rebound and damping, while the component perpendicular to the virtual axis is counterbalanced by the piston rod and the cylinder. Therefore, the existing technology will improve and strengthen the hardness and strength of the piston rod and the cylinder, but the improvement and strengthening of the hardness and strength has an upper limit. Summary of the invention

[0004] The purpose of the present invention is to provide an automobile shock absorber which can effectively reduce the component of impact force perpendicular to the virtual axis.

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

[0006] An automobile shock absorber, comprising:

[0007] Multiple cylinders, the multiple cylinders are arranged equidistantly around the circumference;

[0008] A plurality of piston rods are slidably connected to each cylinder respectively;

[0009] A plurality of pistons are respectively fixedly connected to one end of each piston rod located in the cylinder and are sealingly slidably arranged with the inner wall of the cylinder;

[0010] A plurality of baffles are respectively fixedly connected to one end of each piston rod located outside the cylinder, and are fixedly connected to the semicircular shaped convex block;

[0011] A plurality of springs are respectively sleeved on the outer wall of each piston rod, one end of which is connected to the baffle plate and the other end is connected to the cylinder body;

[0012] The bladder is cylindrical in shape and hollow inside. It is made of elastic rubber and wraps around each piston rod and makes elastic point contact with the bumps on each piston rod.

[0013] The pores are opened on the bladder to connect the inside and outside of the bladder;

[0014] The shock absorber is located between the cab and the frame, and the cab and the frame are in elastic point contact with the bladder.

[0015] Preferably, the shock absorber also includes an upper cover body and a lower cover body, the middle section of the upper cover body has a rotating connection portion, the rotating connection portion is rotatably connected to the cab, the lower cover body is fixedly connected to the frame by fastening bolts, and the upper cover body and the lower cover body have an arc surface on the opposite sides, the arc of the arc surface is greater than the arc of the bladder, the bladder is located between the upper cover body and the lower cover body and is in elastic point contact with the upper cover body and the lower cover body.

[0016] Preferably, the shock absorber also includes a center block located inside the bladder, the interior of the center block is hollow, and multiple cylinders are fixedly connected to the center block. The center block is cylindrical in shape, and both sides of the center block are in contact with the bladder. The center block is also fixedly connected to a contact plate. The setting of the contact plate ensures that the shock absorber is always located between the upper cover body and the lower cover body.

[0017] Preferably, a fixing ring is fixedly connected inside the cylinder, a ring groove is opened in the fixing ring, a coil is arranged inside the ring groove, the coil is fixedly arranged inside the ring groove in a winding manner, and the coils are connected end to end to form a closed circuit, and one end of the piston rod located inside the cylinder is fixedly connected to an extension rod, the extension rod passes through the piston and extends toward the center of the bladder, and is fixedly connected to the first magnetic block, having N and S magnetic poles.

[0018] Preferably, a center ring is fixedly connected inside the center block, and the circumferential side wall of the center ring is slidably connected to a sliding rod. One end of the sliding rod outside the center ring is fixedly connected to a second magnetic block. The second magnetic block has the same relative magnetic poles as the first magnetic block, which acts as a mutual repulsion.

[0019] Preferably, a slide plate is slidably arranged inside the center ring, and the slide plate is sealingly and slidably connected to the inner wall of the center ring. A tension spring is also arranged inside the center ring, and the two ends of the tension spring are respectively connected to the slide plate and the center block. The side of the slide plate away from the tension spring is connected to one end of each sliding rod located inside the center ring through a plurality of wires.

[0020] Preferably, the sliding rod is a hollow structure, the sliding rod passes through the second magnetic block, the extension rod is a hollow structure, the extension rod passes through the first magnetic block, the piston rod is hollow inside, and a freely flowing liquid is set in the center ring and the center block.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention can roll slightly between the cab and the frame with its virtual central axis through the shock absorber bag, and can always find a group of piston rods to more accurately bear the impact force caused by obstacles on the road surface, and the angle between the virtual axis of the piston rod selected more accurately and the impact force is always the smallest, thereby effectively reducing the component of the impact force perpendicular to the virtual axis, so that the counterbalancing force of the piston rod and the cylinder is weakened, thereby playing a protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of an automobile shock absorber proposed by the present invention;

[0024] Figure 2 A schematic diagram of the internal structure of an automobile shock absorber proposed by the present invention;

[0025] Figure 3 This is a structural schematic diagram of a bladder, piston rods and cylinders in an automobile shock absorber proposed by the present invention;

[0026] Figure 4 A schematic diagram of the connection structure between a central block and a wire in an automobile shock absorber proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the connection structure between a piston rod and a cylinder of an automobile shock absorber proposed by the present invention.

[0028] In the figure: 1. cylinder; 2. piston rod; 3. piston; 4. baffle; 5. bump; 6. spring; 7. bladder; 8. air hole; 9. upper cover; 10. lower cover; 11. rotating connection part; 12. center block; 13. contact plate; 14. fixing ring; 15. ring groove; 16. coil; 17. extension rod; 18. first magnetic block; 19. center ring; 20. sliding rod; 21. second magnetic block; 22. slide plate; 23. tension spring; 24. wire. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Reference Figure 1 -Attached Figure 5 , an automobile shock absorber, comprising:

[0031] A plurality of cylinders 1 are arranged equidistantly around the circumference;

[0032] A plurality of piston rods 2 are slidably connected to each cylinder 1;

[0033] A plurality of pistons 3 are respectively fixedly connected to one end of each piston rod 2 located in the cylinder 1 and are sealed and slidably arranged with the inner wall of the cylinder 1;

[0034] A plurality of baffles 4 are respectively fixedly connected to one end of each piston rod 2 located outside the cylinder body 1, and are fixedly connected to a semicircular shaped protrusion 5;

[0035] A plurality of springs 6 are respectively sleeved on the outer wall of each piston rod 2, one end of which is connected to the baffle 4, and the other end is connected to the cylinder 1;

[0036] The bladder 7 is cylindrical in shape and hollow inside, made of elastic rubber material, wraps each piston rod 2, and is in elastic point contact with the bumps 5 on each piston rod 2;

[0037] The air hole 8 is provided on the leather bag 7 so that the inner and outer sides of the leather bag 7 are connected;

[0038] The shock absorber is located between the cab and the frame, and the cab and the frame are in elastic point contact with the bladder 7 .

[0039] Through the above technical solution, in actual use, the shock absorber bag 7 can roll slightly between the cab and the frame with its virtual center axis, and can always find a group (two corresponding piston rods 2) of piston rods 2 to more accurately bear the impact force caused by obstacles on the road surface, and the angle between the virtual axis of the more accurately selected piston rod 2 and the impact force is always the smallest, which effectively weakens the component of the impact force perpendicular to the virtual axis, so that the counterbalancing force of the piston rod 2 and the cylinder 1 is weakened, thereby playing a protective role.

[0040] The shock absorber also includes an upper cover body 9 and a lower cover body 10. The middle section of the upper cover body 9 has a rotating connection part 11, which is rotatably connected to the cab. The lower cover body 10 is fixedly connected to the frame by fastening bolts. The upper cover body 9 and the lower cover body 10 have an arc surface on the opposite side, and the arc of the arc surface is greater than the arc of the bladder 7. The bladder 7 is located between the upper cover body 9 and the lower cover body 10 and is in elastic point contact with the upper cover body 9 and the lower cover body 10.

[0041] The shock absorber also includes a central block 12 located in the bladder 7. The interior of the central block 12 is hollow. Multiple cylinders 1 are fixedly connected to the central block 12. The central block 12 is cylindrical in shape. Both sides of the central block 12 are in contact with the bladder 7. The central block 12 is also fixedly connected to a resistance plate 13. The setting of the resistance plate 13 ensures that the shock absorber is always located between the upper cover body 9 and the lower cover body 10, thereby playing a limiting role.

[0042] Although the spring 6 can absorb and filter the vibration of the road surface, the spring 6 itself will also have reciprocating motion, so the following settings are made:

[0043] A fixing ring 14 is fixedly connected inside the cylinder 1, and a ring groove 15 is provided inside the fixing ring 14. A coil 16 is arranged inside the ring groove 15. The coil 16 is fixedly arranged inside the ring groove 15 in a winding manner, and the coil 16 is connected end to end to form a closed circuit. An end of the piston rod 2 located inside the cylinder 1 is fixedly connected to an extension rod 17, and the extension rod 17 passes through the piston 3 and extends toward the center of the bladder 7, and is fixedly connected to a first magnetic block 18 having N and S magnetic poles. When the piston rod 2 moves toward the inside of the cylinder 1, the first magnetic block 18 moves toward the direction of the coil 16, causing a change in magnetic flux. According to the Lenz law According to the principle of Lenz's law, the change of magnetic flux is always hindered, so the first magnetic block 18 is hindered from approaching the coil 16. When the piston rod 2 moves toward the outside of the cylinder 1, the first magnetic block 18 moves toward the protrusion 5, causing the change of magnetic flux. According to the principle of Lenz's law, the change of magnetic flux is always hindered, so the first magnetic block 18 is hindered from moving away from the coil 16. Through the arrangement of the coil 16 and the first magnetic block 18, the kinetic energy of the piston rod 2 is partially converted during shock absorption to achieve the purpose of consumption, and at the same time, the amplitude and number of reciprocating motions of the spring 6 are weakened, and the spring 6 is matched to achieve faster and better shock absorption.

[0044] A center ring 19 is also fixedly connected inside the center block 12, and a sliding rod 20 is slidably connected to the circumferential side wall of the center ring 19. One end of the sliding rod 20 outside the center ring 19 is fixedly connected to a second magnetic block 21. The second magnetic block 21 has the same relative magnetic poles as the first magnetic block 18, which acts as a mutual repulsion. According to the change of magnetic flux, the coil 16 will also generate N and S magnetic poles, which will attract or repel the second magnetic block 21.

[0045] A slide plate 22 is slidably arranged inside the center ring 19, and the slide plate 22 is sealed and slidably connected to the inner wall of the center ring 19. A tension spring 23 is also arranged inside the center ring 19, and the two ends of the tension spring 23 are respectively connected to the slide plate 22 and the center block 12. The side of the slide plate 22 away from the tension spring 23 is connected to one end of each sliding rod 20 located inside the center ring 19 through a plurality of wires 24.

[0046] The sliding rod 20 is a hollow structure, and passes through the second magnetic block 21. The extension rod 17 is a hollow structure, and passes through the first magnetic block 18. The interior of the piston rod 2 is hollow, and a freely flowing liquid is set in the center ring 19 and the center block 12.

[0047] Working principle of the present invention:

[0048] In actual use, the piston rod 2 is subjected to impact force, the spring 6 is compressed, the first magnetic block 18 approaches the coil 16, and a magnetic flux is generated. The change in magnetic flux causes the coil 16 to form opposite magnetic poles to hinder the first magnetic block 18 from approaching, and at the same time, the second magnetic block 21 is attracted to approach the coil 16, and the second magnetic block 21 has the same corresponding magnetic pole as the first magnetic block 18, further hindering the first magnetic block 18 from approaching, thereby reducing the degree of compression of the spring 6;

[0049] When the second magnetic block 21 is close to the coil 16, the wire 24 is pulled so that the slide plate 22 overcomes the tension of the tension spring 23, squeezing the liquid in the center ring 19. The squeezed liquid enters the cylinder 1 and the piston rod 2 through the slide rod, exerting outward pressure on the cylinder 1 and the piston rod 2, further counteracting the component of the impact force perpendicular to the virtual axis, and effectively weakening the component of the impact force perpendicular to the virtual axis.

[0050] The present invention is conceived to:

[0051] In view of the obstruction of irregular obstacles on the road surface during driving, the impact forces on the shock absorber caused by the cab and the frame in different directions will make the component force perpendicular to the virtual axis counterbalanced by the piston rod 2 and the cylinder 1. The existing technology can only improve and strengthen the hardness and strength of the piston rod 2 and the cylinder 1. The present application sets an arc between the upper cover body 9 rotatably connected to the cab and the lower cover body 10 fixedly connected to the frame, and the circumferentially arranged piston rods 2 are vertically placed therein. The rotating upper cover body 9 rotates accordingly according to the actual road conditions, and the two connection points between the bladder 7 and the upper cover body 9 and the lower cover body 10 are connected to form a virtual line segment. The virtual line segment will rotate accordingly with the rotation of the upper cover body 9, and a group of two piston rods 2 with the smallest angle between the line segment can always be found in the bladder 7, so as to more accurately bear the impact force caused by the obstacles on the road surface, effectively weaken the component force perpendicular to the virtual axis in the impact force, so that the counterbalance of the piston rod 2 and the cylinder 1 is weakened;

[0052] The piston rod 2 reciprocates inside the cylinder 1 to eliminate vibration. A closed circuit coil 16 is arranged inside the cylinder 1. The movement of the piston rod 2 inside the cylinder 1 is always hindered by the change of magnetic flux, so that the kinetic energy of the piston rod 2 is partially converted and consumed during shock absorption. At the same time, the amplitude and number of reciprocating motions of the spring 6 are also reduced, so that the shock absorption is faster and better with the spring 6.

[0053] The liquid set in the present application causes the sliding rod 20 to move away from the center of the center ring 19 through the above-mentioned change in magnetic flux, and the slide plate 22 is pulled close to the sliding rod 20 by the traction of the wire 24, exerting pressure on the liquid, so that the liquid passes into the cylinder 1 and the piston rod 2. At the same time, the pressure is also evenly distributed on the inner walls of the cylinder 1 and the piston rod 2, which plays a role in offsetting the component of the impact force perpendicular to the virtual axis, thereby reducing the impact force of the component of the impact force perpendicular to the virtual axis on the cylinder 1 and the piston rod 2.

[0054] 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. An automobile shock absorber, characterized in that: include: A plurality of cylinders (1), wherein the plurality of cylinders (1) are arranged equidistantly around the circumference; A plurality of piston rods (2) are slidably connected to each cylinder (1); A plurality of pistons (3) are respectively fixedly connected to one end of each piston rod (2) located inside the cylinder (1) and are sealingly slidably arranged with the inner wall of the cylinder (1); A plurality of baffles (4) are respectively fixedly connected to one end of each piston rod (2) located outside the cylinder (1), and are fixedly connected to a semicircular shaped protrusion (5); A plurality of springs (6) are respectively sleeved on the outer wall of each piston rod (2), one end of each spring is connected to the baffle (4), and the other end is connected to the cylinder (1); The leather bag (7) is cylindrical in shape and hollow inside, and is made of elastic rubber material, wraps each piston rod (2), and is in elastic point contact with the protrusion (5) on each piston rod (2); The air hole (8) is formed on the leather bag (7) so that the inner and outer sides of the leather bag (7) are connected; The shock absorber is located between the cab and the frame, and the cab and the frame are in elastic point contact with the bladder (7).

2. The automobile shock absorber according to claim 1, characterized in that: The shock absorber also includes an upper cover body (9) and a lower cover body (10). The middle section of the upper cover body (9) has a rotating connection part (11), and the rotating connection part (11) is rotatably connected to the cab. The lower cover body (10) is fixedly connected to the frame by fastening bolts. The upper cover body (9) and the lower cover body (10) have an arc surface on the opposite side, and the arc of the arc surface is greater than the arc of the bladder (7). The bladder (7) is located between the upper cover body (9) and the lower cover body (10) and is in elastic point contact with the upper cover body (9) and the lower cover body (10).

3. The automobile shock absorber according to claim 2, characterized in that: The shock absorber also includes a central block (12) located in the bladder (7). The interior of the central block (12) is hollow. The plurality of cylinders (1) are fixedly connected to the central block (12). The central block (12) is cylindrical in shape. Both sides of the central block (12) are in contact with the bladder (7). The central block (12) is also fixedly connected to a contact plate (13). The arrangement of the contact plate (13) ensures that the shock absorber is always located between the upper cover (9) and the lower cover (10).

4. The automobile shock absorber according to claim 1, characterized in that: A fixing ring (14) is fixedly connected inside the cylinder (1), an annular groove (15) is provided inside the fixing ring (14), a coil (16) is arranged inside the annular groove (15), the coil (16) is fixedly arranged inside the annular groove (15) in a winding manner, and the coils (16) are connected end to end to form a closed circuit, one end of the piston rod (2) located inside the cylinder (1) is fixedly connected to an extension rod (17), the extension rod (17) passes through the piston (3) and extends toward the center of the bladder (7), and is fixedly connected to a first magnetic block (18) having N and S magnetic poles.

5. The automobile shock absorber according to claim 4, characterized in that: A center ring (19) is also fixedly connected inside the center block (12), and a sliding rod (20) is slidably connected to the circumferential side wall of the center ring (19). One end of the sliding rod (20) located outside the center ring (19) is fixedly connected to a second magnetic block (21). The second magnetic block (21) has the same relative magnetic poles as the first magnetic block (18), thereby achieving a mutual repulsion effect.

6. The automobile shock absorber according to claim 5, characterized in that: A slide plate (22) is slidably arranged inside the center ring (19), and the slide plate (22) is sealingly slidably connected to the inner wall of the center ring (19). A tension spring (23) is also arranged inside the center ring (19), and two ends of the tension spring (23) are respectively connected to the slide plate (22) and the center block (12), and a side of the slide plate (22) away from the tension spring (23) is respectively connected to one end of each sliding rod (20) located inside the center ring (19) through a plurality of wires (24).

7. The automobile shock absorber according to claim 5, characterized in that: The sliding rod (20) is a hollow structure, the sliding rod (20) passes through the second magnetic block (21), the extension rod (17) is a hollow structure, the extension rod (17) passes through the first magnetic block (18), the interior of the piston rod (2) is hollow, and a freely flowing liquid is arranged in the center ring (19) and the center block (12).

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