Multi-damping structure of shock absorber

Abstract

The utility model discloses a multi-damping structure of a shock absorber, and relates to the technical field of shock absorber, comprising a piston cylinder, wherein the top of the piston cylinder is slidably connected with a piston rod, a limiting ring is fixed on the outer wall of the top of the piston cylinder, a slider filter mechanism is arranged at the outer wall of the piston cylinder below the limiting ring, an inner thread ring block is threadedly connected to the outer wall of the bottom of the piston cylinder, a bottom cylinder is fixed on the bottom of the piston cylinder, a thread groove is cut on the bottom of the bottom cylinder, when pressure acts on an upper spring to generate pressure on the slider filter mechanism, the slider filter mechanism is subjected to pressure to cause a ring-shaped slider to slide up and down the piston cylinder, which will drive the slide cylinder to descend together, and a sealing ring clamped between the slide cylinder and the bottom ring plate can filter dust on the outer wall of the piston cylinder to prevent the dust from entering between the slide cylinder and the inner wall of the ring-shaped slider, and to avoid scratches and movement blockage caused by extrusion and friction, thereby achieving an effective protective effect.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a multi-damping structure of a shock absorber. Background Art

[0002] The advantages of automobile shock absorbers are significant and important. They can effectively suppress the bumps of the vehicle during driving and provide passengers with a more stable and comfortable riding experience. The shock absorbers are not only highly adaptable and can maintain stable performance under various environmental conditions, but also can adjust the damping force according to the driver's needs to achieve a personalized driving experience. In addition, it can also improve the vehicle's handling and stability, reduce roll and pitch, and enhance driving safety. In short, automobile shock absorbers play an important role in improving driving comfort, safety and handling.

[0003] The double spring shock absorber is a type of multi-damping shock absorber. It can not only reduce shock through the hydraulic piston, but also the outer walls of its piston rod and piston cylinder are provided with springs, and the two springs can also achieve the second and third shock reduction.

[0004] In the process of implementing this solution, the inventors found that the following problems existed in the prior art and have not been well solved: when the slider between the two springs slides on the piston cylinder, it is easy for the sliding to be blocked by dust, and the inner wall of the slider and the outer wall of the piston cylinder are scratched and damaged; when the sliding is blocked, the lower spring cannot be freely extended and retracted, resulting in a decrease in the shock absorbing effect after the extension and retraction is blocked. Utility Model Content

[0005] The main purpose of the utility model is to provide a multi-damping structure of a shock absorber, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The multi-damping structure of the shock absorber comprises a piston cylinder, the top of which is slidably connected to a piston rod, a limiting ring is fixed to the outer wall of the top of the piston cylinder, a slider filter mechanism is arranged at the outer wall of the piston cylinder below the limiting ring, an inner thread ring block is threadedly connected to the outer wall of the bottom of the piston cylinder, a bottom cylinder is fixed to the bottom of the piston cylinder, a thread groove 1 is drilled at the bottom of the bottom cylinder, both ends of the bottom cylinder located inside the thread groove 1 are drilled with through holes, long screws are inserted in the two through holes, pin seats are fixed at the bottom of the bottom cylinder and the top of the piston rod, a thread column is fixed at the top of the pin seat below, a thread groove 3 is drilled through the side wall of the thread column, a spring is sleeved on the outer wall of the piston cylinder between the slider filter mechanism and the inner thread ring block and the outer wall of the piston rod located between the pin seat and the slider filter mechanism;

[0008] The slider filter mechanism includes a ring-shaped slider, a slide cylinder is provided at the bottom of the ring-shaped slider, a bottom ring plate is provided at the bottom of the slide cylinder, a groove is chiseled on the inner wall of the bottom ring plate, a sealing ring is embedded in the groove, a plurality of installation grooves are chiseled at the bottom of the bottom ring plate, short screws are inserted through the inside of the installation grooves, and a second thread groove is chiseled at the bottom of the slide cylinder at the short screw position.

[0009] Preferably, the ring-shaped sliding block and the sliding cylinder are respectively slidably connected to the piston cylinder, the sealing ring is in contact with a side close to the sliding cylinder, and the inner wall of the sealing ring is in contact with the outer wall of the piston cylinder.

[0010] Preferably, one end of the short screw rod passes through the installation groove and is respectively inserted into the second thread groove of matching position and is threadedly connected thereto.

[0011] Preferably, the threaded column is inserted into the interior of thread groove one and threadedly connected thereto, and one end of the long screw located inside thread groove one is respectively inserted into the interior of thread groove three and threadedly connected thereto.

[0012] Preferably, the top of the upper spring contacts the bottom of the upper pin seat, the bottom of the upper spring contacts the top of the ring-shaped slider, the top of the lower spring contacts the bottom of the ring-shaped slider, and the inner diameter of the lower spring is larger than the outer diameter of the slide tube, and the bottom of the lower spring contacts the top of the internal threaded ring block.

[0013] Preferably, the outer diameter of the bottom cylinder is smaller than the outer diameter of the piston cylinder.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. When pressure acts on the upper spring and generates pressure on the slider filter mechanism, the slider filter mechanism will receive pressure and cause the ring-shaped slider to slide up and down on the piston cylinder, which will drive the slide cylinder to descend together. The sealing ring clamped between the slide cylinder and the bottom ring plate can filter the dust on the outer wall of the piston cylinder to prevent it from entering between the slide cylinder and the inner wall of the ring-shaped slider, avoiding scratches and movement blockage caused by extrusion and friction, and playing an effective protective effect.

[0016] 2. After the long screw is rotated, it can be pulled out from the through hole of the bottom cylinder and the thread groove three of the threaded column. Then, the rotating threaded column of the lower pin seat is taken out from the bottom cylinder, so that the inner thread ring block can be separated from the piston cylinder after rotation, and then the lower spring can be taken out from the outer wall of the piston cylinder. The rotation of the short screw can disconnect the bottom ring plate and the sliding cylinder, and then the sealing ring can be taken out and replaced. At the same time, the slider filter mechanism can be removed and the two springs with damaged elasticity can be replaced at the same time, avoiding the problem of being unable to replace parts due to obstruction of the pin seat in traditional technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the multi-damping structure of the shock absorber of the utility model;

[0018] Figure 2 It is a schematic diagram of the exploded structure of the piston cylinder and the slider filter mechanism of the multi-damping structure of the shock absorber of the utility model;

[0019] Figure 3 It is a schematic diagram of the separation structure of the bottom cylinder, the threaded column and the long screw of the multi-damping structure of the shock absorber of the utility model;

[0020] Figure 4 It is a schematic diagram of the exploded structure of the slider filter mechanism of the multi-damping structure of the shock absorber of the utility model after being cut away;

[0021] Figure 5 It is a schematic diagram of the enlarged structure of point A of the multi-damping structure of the shock absorber of the utility model.

[0022] In the figure: 1. piston cylinder; 11. limit ring; 2. piston rod; 3. internal thread ring block; 4. bottom cylinder; 41. thread groove one; 42. perforation; 5. slider filter mechanism; 51. ring-shaped slider; 52. slide cylinder; 53. bottom ring plate; 54. groove; 55. mounting groove; 56. thread groove two; 6. spring; 7. pin seat; 8. thread column; 81. thread groove three; 82. long screw; 9. short screw; 10. sealing ring. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-4 As shown, the multi-damping structure of the shock absorber comprises a piston cylinder 1, the top of the piston cylinder 1 is slidably connected with a piston rod 2, a limiting ring 11 is fixed to the outer wall of the top of the piston cylinder 1, a slider filter mechanism 5 is arranged at the outer wall of the piston cylinder 1 below the limiting ring 11, an inner threaded ring block 3 is threadedly connected to the outer wall of the bottom of the piston cylinder 1, a bottom cylinder 4 is fixed to the bottom of the piston cylinder 1, a threaded groove 41 is drilled at the bottom of the bottom cylinder 4, both ends of the bottom cylinder 4 located inside the threaded groove 41 are drilled with through holes 42, long screws 82 are inserted in the two through holes 42, a pin seat 7 is fixed at the bottom of the bottom cylinder 4 and the top of the piston rod 2, a threaded column 8 is fixed to the top of the lower pin seat 7, a threaded groove 81 is drilled through the side wall of the threaded column 8, and a spring 6 is sleeved on the outer wall of the piston cylinder 1 between the slider filter mechanism 5 and the inner threaded ring block 3 and the outer wall of the piston rod 2 located between the pin seat 7 and the slider filter mechanism 5;

[0025] The slider filter mechanism 5 includes a ring-shaped slider 51, a slide tube 52 is provided at the bottom of the ring-shaped slider 51, a bottom ring plate 53 is provided at the bottom of the slide tube 52, a groove 54 is drilled on the inner wall of the bottom ring plate 53, a sealing ring 10 is embedded in the groove 54, a plurality of installation grooves 55 are drilled at the bottom of the bottom ring plate 53, short screws 9 are inserted through the inside of the installation grooves 55, and a threaded groove 56 is drilled at the bottom of the slide tube 52 at the position of the short screw 9.

[0026] Specifically, the ring-shaped slider 51 and the slide cylinder 52 are respectively slidably connected to the piston cylinder 1, the sealing ring 10 contacts the side close to the slide cylinder 52, and the inner wall of the sealing ring 10 contacts the outer wall of the piston cylinder 1, so as to filter the dust particles on the outer wall of the piston cylinder 1.

[0027] Specifically, one end of the short screw 9 passes through the installation groove 55 and is inserted into the second thread groove 56 of matching position and threadedly connected thereto, so that the slide cylinder 52 and the bottom ring plate 53 are conveniently disassembled and assembled, and the sealing ring 10 can be replaced after disassembly.

[0028] Specifically, the threaded column 8 is inserted into the interior of the thread groove 1 41 and threadedly connected thereto, and one end of the long screw 82 located inside the thread groove 1 41 is respectively inserted into the interior of the thread groove 3 81 and threadedly connected thereto, thereby achieving a stabilizing effect of double connection.

[0029] Specifically, the top of the upper spring 6 contacts the bottom of the upper pin seat 7, the bottom of the upper spring 6 contacts the top of the ring-shaped slider 51, the top of the lower spring 6 contacts the bottom of the ring-shaped slider 51, and the inner diameter of the lower spring 6 is larger than the outer diameter of the slide tube 52, and the bottom of the lower spring 6 contacts the top of the internal threaded ring block 3.

[0030] Specifically, the outer diameter of the bottom cylinder 4 is smaller than the outer diameter of the piston cylinder 1 , so that the internal threaded ring block 3 can be removed from the outer walls of the piston cylinder 1 and the bottom cylinder 4 after rotation.

[0031] Working principle: When pressure acts on the upper spring 6 and generates pressure on the slider filter mechanism 5, the slider filter mechanism 5 is subjected to pressure and causes the ring-shaped slider 51 to slide up and down on the piston cylinder 1, which will drive the slide cylinder 52 to descend together. The sealing ring 10 clamped between the slide cylinder 52 and the bottom ring plate 53 can filter the dust on the outer wall of the piston cylinder 1 to prevent it from entering between the slide cylinder 52 and the inner wall of the ring-shaped slider 51, avoiding scratches and movement blockage caused by extrusion and friction, and playing an effective protective effect. After the long screw 82 rotates, it can pass through the perforation 42 of the bottom cylinder 4 and The threaded column 8 is pulled out from the thread groove 3 81, and then the rotating threaded column 8 of the lower pin seat 7 is taken out from the bottom cylinder 4, so that the internal threaded ring block 3 can be separated from the piston cylinder 1 after rotation, and then the lower spring 6 can be taken out from the outer wall of the piston cylinder 1, and the rotation of the short screw 9 can disconnect the bottom ring plate 53 and the sliding cylinder 52, and then the sealing ring 10 can be taken out and replaced therebetween, and at the same time, the slider filter mechanism 5 can be removed and the two springs 6 with damaged elasticity can be replaced at the same time, avoiding the problem of being unable to replace components due to the obstruction of the pin seat 7 in traditional technology.

[0032] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-damping structure of a shock absorber, comprising a piston cylinder (1), characterized in that: The top of the piston cylinder (1) is slidably connected to a piston rod (2); a limit ring (11) is fixed to the outer wall of the top of the piston cylinder (1); a slider filter mechanism (5) is provided on the outer wall of the piston cylinder (1) below the limit ring (11); an inner thread ring block (3) is threadedly connected to the outer wall of the bottom of the piston cylinder (1); a bottom cylinder (4) is fixed to the bottom of the piston cylinder (1); a thread groove (41) is bored at the bottom of the bottom cylinder (4); and holes are bored at both ends of the inside of the thread groove (41) of the bottom cylinder (4). (42), long screws (82) are inserted into the two through holes (42), a pin seat (7) is fixed below the bottom cylinder (4) and on the top of the piston rod (2), a threaded column (8) is fixed on the top of the pin seat (7) below, a threaded groove (81) is drilled through the side wall of the threaded column (8), and a spring (6) is sleeved on the outer wall of the piston cylinder (1) between the slider filter mechanism (5) and the internal threaded ring block (3) and the outer wall of the piston rod (2) between the pin seat (7) and the slider filter mechanism (5); The slider filter mechanism (5) comprises a ring-shaped slider (51), a slide tube (52) is arranged at the bottom of the ring-shaped slider (51), a bottom ring plate (53) is arranged at the bottom of the slide tube (52), a groove (54) is bored on the inner wall of the bottom ring plate (53), a sealing ring (10) is embedded in the groove (54), a plurality of mounting grooves (55) are bored at the bottom of the bottom ring plate (53), a short screw rod (9) is inserted through the inside of each mounting groove (55), and a second thread groove (56) is bored at the bottom of the slide tube (52) at the position of the short screw rod (9).

2. The multi-damping structure of the shock absorber according to claim 1, characterized in that: The ring-shaped sliding block (51) and the sliding cylinder (52) are respectively slidably connected to the piston cylinder (1), the sealing ring (10) is in contact with a side close to the sliding cylinder (52), and the inner wall of the sealing ring (10) is in contact with the outer wall of the piston cylinder (1).

3. The multi-damping structure of the shock absorber according to claim 1, characterized in that: One end of the short screw rod (9) passing through the installation groove (55) is inserted into the interior of the second thread groove (56) at a matching position and is threadedly connected thereto.

4. The multi-damping structure of the shock absorber according to claim 1, characterized in that: The threaded column (8) is inserted into the interior of the first thread groove (41) and is threadedly connected thereto, and one end of the long screw rod (82) located inside the first thread groove (41) is respectively inserted into the interior of the third thread groove (81) and is threadedly connected thereto.

5. The multi-damping structure of the shock absorber according to claim 1, characterized in that: The top of the upper spring (6) contacts the bottom of the upper pin seat (7), the bottom of the upper spring (6) contacts the top of the ring-shaped slider (51), the top of the lower spring (6) contacts the bottom of the ring-shaped slider (51), and the inner diameter of the lower spring (6) is larger than the outer diameter of the slide tube (52), and the bottom of the lower spring (6) contacts the top of the internal threaded ring block (3).

6. The multi-damping structure of the shock absorber according to claim 1, characterized in that: The outer diameter of the bottom cylinder (4) is smaller than the outer diameter of the piston cylinder (1).

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