Novel hollow piston rod adjustable structure

Abstract

The utility model relates to an adjustable shock absorber, in particular to a novel hollow piston rod adjustable structure. A novel hollow piston rod adjustable structure comprises a piston rod, an adjusting rod is arranged at one end of the piston rod, an adjusting valve element is arranged on the front side of the adjusting rod, the adjusting valve element is in contact with a spring and a check block, and the check block is in contact with a movable rod. The damping device has the advantages that the structure is novel, the damping force is slowly attenuated by controlling the change of the damping force through the spring and the check block, the adjusting rod, the spring and the check block in the adjusting system are communicated with one another, the length of the spring can be shortened through the in-out of the adjusting rod, and the change of the damping force can be controlled.

Description

Technical Field

[0001] The utility model relates to the field of shock absorbers, in particular to a novel regulating valve core structure of a shock absorber with an adjustable barrel. Background Art

[0002] The adjustable shock absorber piston rod has an adjustable structure, such as Figure 5 As shown, the old design often uses friction coils, and the adjustment effect is cut off quickly, and the damping force attenuates greatly. Summary of the Invention

[0003] In order to solve the above-mentioned technical problem of large damping force attenuation, the utility model provides a novel hollow piston rod adjustable structure.

[0004] The technical solution of the utility model is as follows:

[0005] A novel hollow piston rod adjustable structure includes a piston rod, one end of the piston rod is provided with an adjusting rod, the front side of the adjusting rod is provided with an adjusting valve core, the adjusting valve core contacts with a spring and a stopper, and the stopper contacts with a movable rod.

[0006] The outer wall of the front part of the regulating valve core is concave to form a concave ring, a ring body is provided on the concave ring, and a rod head is provided at the rear end of the regulating valve core, and the rod head is inserted into the regulating rod.

[0007] A ventilation hole is provided on the piston rod outside the regulating valve core.

[0008] The two sides of the stopper are chamfered, and the diameter of the stopper is larger than the diameter of the inner wall of the left tube body.

[0009] The technical solution of the utility model has a novel structure. It relies on the spring and the block to control the change of the damping force so that the damping force decays more slowly. The adjusting rod, spring and block in the adjustment system are interconnected. The entry and exit of the adjusting rod can shorten the length of the spring, which can be used to control the change of the damping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the utility model;

[0011] Figure 2 This is a structural diagram of the piston rod of the utility model;

[0012] Figure 3 This is a structural diagram of the regulating valve core of the utility model;

[0013] Figure 4 It is a structural diagram of the adjusting rod of the utility model;

[0014] Figure 5 This is a schematic diagram of the structure before improvement. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0016] like Figure 1 、 2 A new type of hollow piston rod adjustable structure shown in 3 and 4 includes a piston rod 7, an adjusting rod 6 is provided at one end of the piston rod 7, and a regulating valve core 1 is provided on the front side of the adjusting rod 6. The regulating valve core 1 is in contact with the spring 3 and the stopper 2, and the stopper 2 is in contact with the movable rod.

[0017] The outer wall of the front portion of the regulating valve core 1 is recessed to form a recessed ring, a ring body is provided on the recessed ring, and a rod head is provided at the rear end of the regulating valve core 1 , and the rod head is inserted into the regulating rod 6 .

[0018] A ventilation hole is provided on the piston rod 7 outside the regulating valve core 1.

[0019] The two sides of the stopper 2 are chamfered, and the diameter of the stopper 2 is larger than the diameter of the inner wall of the left tube body.

[0020] When in use, the regulating rod 6 in the hollow piston rod 7 regulates the valve core 1 and the spring 3 and the stopper 2 to make the spring 3 expand and contract under the action of the external regulator. The regulator is located on the left side of the piston rod 7 and pushes the movable rod to move. When the spring 3 is tightened, the damping force is the largest. When the regulator is turned to make the spring 3 fully open, the damping force is the smallest. In the original structure, the valve core diameter is close to the inner wall diameter. The coil on the valve core contacts and rubs on the inner wall, and the damping force decays quickly.

[0021] It should be understood that the above description is only a preferred embodiment of the present invention and is not sufficient to limit the technical solutions of the present invention. For ordinary technicians in this field, within the spirit and principles of the present invention, additions, substitutions, changes or improvements can be made according to the above description, and all these additions, substitutions, changes or improvements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A novel hollow piston rod adjustable structure, including a piston rod (7), characterized in that: An adjusting rod (6) is provided at one end of the piston rod (7), and an adjusting valve core (1) is provided on the front side of the adjusting rod (6). The adjusting valve core (1) contacts the spring (3) and the stopper (2), and the stopper (2) contacts the movable rod.

2. The novel hollow piston rod adjustable structure according to claim 1, characterized in that: The outer wall of the front portion of the regulating valve core (1) is recessed to form a recessed ring, a ring body is provided on the recessed ring, and a rod head is provided at the rear end of the regulating valve core (1), and the rod head is inserted into the regulating rod (6).

3. The novel hollow piston rod adjustable structure according to claim 1, characterized in that: A ventilation hole is provided on the piston rod (7) outside the regulating valve core (1).

4. The novel hollow piston rod adjustable structure according to claim 1 is characterized in that: Both sides of the stopper (2) are chamfered, and the diameter of the stopper (2) is larger than the diameter of the inner wall of the left tube body.

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