Adjustable shock absorber

Abstract

The utility model provides an adjustable shock absorber, and belongs to the technical field of shock absorbers. An adjustable shock absorber comprises a cylinder barrel and a piston rod, the piston rod and a hydraulic cavity are installed together through a steel plate spring, a main piston is fixed to the bottom of the piston rod and slides in the cylinder barrel, two balance holes are formed in the main piston, and control assemblies are arranged in the piston rod and the main piston. The control assembly comprises an adjusting sliding block sliding in the main piston, an adjusting hole is formed in the adjusting sliding block, the adjusting hole is communicated with the balance hole, the adjusting sliding block can be driven to move through rotation of the adjusting disc, the adjusting hole and the balance hole can be mutually staggered, and therefore the adjusting sliding block can be conveniently adjusted. Therefore, the throughput of the hydraulic oil in unit time is reduced, the shock absorption strength of the shock absorber can be improved with the small throughput, the shock absorber is made to adapt to more complex environments, and complex replacement operation is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of shock absorbers, and in particular relates to an adjustable shock absorber. Background Art

[0002] The working principle of the shock absorber is that when the frame (or body) and the axle vibrate and move relative to each other, the piston in the shock absorber moves up and down, and the oil in the shock absorber cavity repeatedly flows from one cavity to another through different pores. At this time, the friction between the pore wall and the oil and the internal friction between the oil molecules form a damping force on the vibration. The shock absorbing effect of the shock absorber is generally related to the size of the pore wall. Nowadays, the size of the pore wall is a constant value. When a shock absorber with better shock absorbing effect is needed in a more complex environment, the shock absorber needs to be replaced, which greatly increases the difficulty of replacement. Utility Model Content

[0003] The utility model aims at solving the deficiencies of the prior art and provides an adjustable shock absorber.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: an adjustable shock absorber, comprising a cylinder and a piston rod, characterized in that: the piston rod and the hydraulic chamber are installed together through a leaf spring, a main piston is fixed to the bottom of the piston rod, the main piston slides in the cylinder, and two balancing holes are provided in the main piston,

[0005] A control assembly is provided in the piston rod and the main piston;

[0006] The control component includes an adjusting slider sliding in the main piston, an adjusting hole is provided in the adjusting slider, the adjusting hole is connected with the balancing hole, an adjusting disk is rotatably connected in the main piston, and the end faces of the adjusting disk and the adjusting slider are connected.

[0007] Optionally, a hydraulic chamber is opened in the cylinder barrel, and the main piston slides in the hydraulic chamber. A secondary piston block is also installed at the bottom of the hydraulic chamber through a shock-absorbing spring. The main piston divides the hydraulic chamber into two chambers, and the two chambers are connected through a balance hole.

[0008] Optionally, an adjusting rod is rotatably connected inside the piston rod, the adjusting rod is fixed together with the adjusting disk, a rotating rod is provided on the top of the adjusting rod, a knob is mounted on the outer peripheral side of the rotating rod, and the rotating rod rotates slightly inside the piston rod.

[0009] Optionally, two slide grooves are provided in the main piston, the slide grooves pass through the balancing hole, and the adjusting slider is located in the slide grooves.

[0010] Optionally, the adjustment hole and the balancing hole are both arranged as straight slots, and the hole size of the balancing hole can be changed by interlacing the two.

[0011] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. Due to the setting of the control component, the adjustment slider can be moved by rotating the adjustment disk, so that the adjustment hole and the balance hole can be staggered, thereby reducing the amount of hydraulic oil passing through per unit time. A small amount of passing can increase the shock absorption strength of the shock absorber, making it adapt to more complex environments and avoiding complicated replacement operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model.

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0016] 10. Cylinder barrel; 11. Piston rod; 12. Hydraulic chamber; 13. Auxiliary piston block; 14. Leaf spring; 15. Main piston; 16. Adjusting rod; 17. Adjusting disk; 18. Slide groove; 19. Adjusting slider; 20. Adjusting hole; 21. Balancing hole; 22. Rotating rod; 23. Knob. DETAILED DESCRIPTION

[0017] In order to make the technical personnel in this field better understand the present invention, the following will be combined with the present invention embodiment

[0018] The accompanying drawings provide a clear and complete description of the technical solutions in the embodiments of the present utility model.

[0019] As shown in Figures 1-3, an adjustable shock absorber includes a cylinder 10 and a piston rod 11, characterized in that: the piston rod 11 and the hydraulic chamber 12 are installed together through a leaf spring 14, an adjusting rod 16 is rotatably connected in the piston rod 11, a rotating rod 22 is provided on the top of the adjusting rod 16, a knob 23 is sleeved on the outer peripheral side of the rotating rod 22, the rotating rod 22 rotates slightly in the piston rod 11, a main piston 15 is fixed at the bottom of the piston rod 11, the main piston 15 slides in the cylinder 10, and two flat The balance hole 21, the piston rod 11 and the main piston 15 are provided with a control component, the control component includes an adjusting slider 19 sliding in the main piston 15, an adjusting hole 20 is opened in the adjusting slider 19, the adjusting hole 20 is connected with the balance hole 21, the adjusting hole 20 and the balance hole 21 are both arranged as straight slots, the two are staggered to change the size of the hole through the balance hole 21, the main piston 15 is also rotatably connected with an adjusting disk 17, the adjusting rod 16 and the adjusting disk 17 are fixed together, and the end faces of the adjusting disk 17 and the adjusting slider 19 are connected.

[0020] A hydraulic chamber 12 is provided in the cylinder 10, and a main piston 15 slides in the hydraulic chamber 12. A secondary piston block 13 is also installed at the bottom of the hydraulic chamber 12 through a shock-absorbing spring. The main piston 15 divides the hydraulic chamber 12 into two chambers, and the two chambers are connected through a balancing hole 21. Two slide grooves 18 are provided in the main piston 15, and the slide grooves 18 pass through the balancing hole 21. The adjusting slider 19 is located in the slide groove 18.

[0021] When in use, the hydraulic chamber 12 is filled with hydraulic oil. When the shock absorber is working, the piston rod 11 drives the main piston 15 to squeeze the hydraulic oil directly in the hydraulic chamber 12 and the auxiliary piston block 13, so that the hydraulic oil slowly flows into the upper chamber of the hydraulic chamber 12 through the balancing hole 21, so as to achieve the shock absorption effect. When the shock absorption effect of the device needs to be improved, the knob 23 is rotated, and the adjusting rod 16 is driven to rotate through the rotating rod 22. The adjusting rod 16 can drive the adjusting disk 17 to rotate. The rotation of the adjusting disk 17 can drive the adjusting slider 19 to move to the side close to the center line of the main piston 15 through the end surface thread, so that the adjusting hole 20 and the balancing hole 21 are staggered with each other. At this time, when shock absorption is performed, when the hydraulic oil in the chamber on the lower side of the hydraulic chamber 12 enters the last hydraulic oil, due to the staggered positions of the adjusting hole 20 and the balancing hole 21, the amount of passage per unit time is reduced. A small amount of passage can increase the shock absorption strength of the shock absorber, so that it can adapt to more complex environments.

[0022] Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. An adjustable shock absorber, comprising a cylinder (10) and a piston rod (11), characterized in that: The piston rod (11) and the hydraulic chamber (12) are mounted together via a leaf spring (14); a main piston (15) is fixed to the bottom of the piston rod (11); the main piston (15) slides in the cylinder (10); two balancing holes (21) are provided in the main piston (15); and control components are provided in the piston rod (11) and the main piston (15); The control assembly comprises an adjusting slider (19) sliding in the main piston (15), an adjusting hole (20) being provided in the adjusting slider (19), the adjusting hole (20) being communicated with the balancing hole (21), an adjusting disk (17) being rotatably connected in the main piston (15), and the end faces of the adjusting disk (17) and the adjusting slider (19) being connected.

2. An adjustable shock absorber according to claim 1, characterized in that: A hydraulic chamber (12) is provided in the cylinder (10), the main piston (15) slides in the hydraulic chamber (12), a secondary piston block (13) is installed at the bottom of the hydraulic chamber (12) via a damping spring, and the main piston (15) divides the hydraulic chamber (12) into two chambers, which are connected via a balancing hole (21).

3. The adjustable shock absorber according to claim 1, characterized in that: An adjusting rod (16) is rotatably connected inside the piston rod (11), and the adjusting rod (16) is fixed together with the adjusting disk (17). A rotating rod (22) is provided on the top of the adjusting rod (16), and a knob (23) is mounted on the outer peripheral side of the rotating rod (22). The rotating rod (22) rotates slightly inside the piston rod (11).

4. The adjustable shock absorber according to claim 1, characterized in that: Two slide grooves (18) are provided in the main piston (15), the slide grooves (18) pass through the balancing hole (21), and the adjusting slider (19) is located in the slide grooves (18).

5. The adjustable shock absorber according to claim 1, characterized in that: The adjustment hole (20) and the balance hole (21) are both arranged as straight slots, and the hole size of the balance hole (21) can be changed by interlacing the two.

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