Conical adjusting core for adjusting restoring force of shock absorber within range of end part of piston rod

Abstract

The utility model relates to a conical adjusting core, and provides a conical adjusting core for adjusting the restoring force of a shock absorber within the range of the end part of a piston rod, the conical adjusting core comprises the piston rod, a fastening plug and a conical adjusting core, the fastening plug is in threaded connection with the end part of the piston rod, and oil enters from the end part of the fastening plug; the conical adjusting core is arranged in the piston rod, and one end of the conical adjusting core is further sleeved with two sealing rings. Wherein the piston rod and the double sealing rings on the conical adjusting core form a semi-closed cavity, and the size of a gap between the conical surface of the conical adjusting core and an inner hole formed in the fastening plug is changed by moving the conical adjusting core, so that the oil quantity is adjusted; according to the conical adjusting core, the problems that the rebound damping force value of a traditional structure cannot be adjusted, or the adjusting range of the damping force value of a type structure is small, and the type structure is only suitable for pavement are solved, the larger adjustable range of the rebound damping force value can be obtained, and therefore customers can meet the requirement for cross-country performance, and meanwhile the comfort of the pavement can be considered.

Description

Technical Field

[0001] The utility model relates to a conical adjusting core, in particular to a conical adjusting core for adjusting the restoring force of a shock absorber within the range of a piston rod end. Background Art

[0002] Shock absorbers are structures that relieve vibrations generated when the vehicle body and frame accelerate, thereby improving ride comfort.

[0003] The rebound damping force of the shock absorber cannot usually be adjusted by general civilian shock absorbers, and the force value is relatively small, so it can only be used on paved roads. The damping force value on unpaved roads has obvious thermal attenuation, or the adjustable range is small, and it is impossible to take into account the performance on both paved and unpaved roads. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a conical adjustment core for adjusting the restoring force of a shock absorber within the range of a piston rod end, aiming to solve the problems existing in the above-mentioned background technology.

[0005] The utility model is implemented in this way: a conical adjustment core for adjusting the restoring force of a shock absorber at the end range of a piston rod comprises a piston rod, and also comprises:

[0006] A fastening plug, wherein the fastening plug is threadedly connected to the end of the piston rod, and oil enters from the end of the fastening plug;

[0007] A conical adjusting core, which is arranged inside the piston rod, and one end of which is sleeved with two sealing rings;

[0008] Among them, the piston rod and the double sealing ring on the conical adjusting core form a semi-closed cavity, and the semi-closed cavity is closed by a fastening plug. The conical adjusting core is moved to change the size of the gap between its conical surface and the inner hole opened on the fastening plug to achieve adjustment of the oil volume.

[0009] Preferably, two side holes with a diameter of 4.5 mm are provided on the piston rod to facilitate the oil to flow out after passing through the conical surface of the conical regulating core.

[0010] Preferably, the cone angle of the conical adjusting core is adjustable.

[0011] Preferably, the cone angle of the conical adjustment core is preferably 28°, so as to obtain a larger adjustable range of the rebound damping force value.

[0012] The utility model embodiment provides a conical adjustment core for adjusting the restoring force of the shock absorber within the range of the piston rod end, which solves the problem that the rebound damping force value of the traditional structure cannot be adjusted, or the adjustment range of the damping force value of the type of structure is small and is only suitable for paved roads. A larger adjustable range of the rebound damping force value can be obtained, thereby matching the damping force value of the corresponding working condition for the customer, allowing the customer to meet the off-road performance while taking into account the comfort of the paved road. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a conical adjustment core for adjusting the restoring force of a shock absorber within the range of a piston rod end provided by an embodiment of the utility model;

[0014] Figure 2 A schematic structural diagram of a conical adjustment core for adjusting the restoring force of a shock absorber at a piston rod end range provided by an embodiment of the utility model when the cone surface angle is 28°;

[0015] In the attached figure: 1-piston rod; 2-fastening plug; 3-conical adjusting core; 4-sealing ring. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0017] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0018] like Figure 1 to Figure 2 As shown, it is a structural diagram of a conical adjustment core for adjusting the restoring force of a shock absorber within the range of a piston rod end provided by an embodiment of the utility model, comprising a piston rod 1, a fastening plug 2 and a conical adjustment core 3, wherein the fastening plug 2 is threadedly connected to the end of the piston rod 1, and oil enters from the end of the fastening plug 2; the conical adjustment core 3 is arranged inside the piston rod 1, and one end of the conical adjustment core 3 is also sleeved with two sealing rings 4; wherein the piston rod 1 and the double sealing rings 4 on the conical adjustment core 3 form a semi-closed cavity, and the conical adjustment core 3 is moved to change the size of the gap between its conical surface and the inner hole opened on the fastening plug 2, thereby realizing the adjustment of the oil amount.

[0019] The conical adjustment core for adjusting the restoring force of the shock absorber within the range of the piston rod end provided in the present application solves the problem that the rebound damping force value of the traditional structure cannot be adjusted, or the adjustment range of the damping force value of the type of structure is small and is only suitable for paved roads. A larger adjustable range of the rebound damping force value can be obtained, thereby matching the damping force value of the corresponding working condition for the customer, allowing the customer to meet the off-road performance while taking into account the comfort of the paved road.

[0020] In an example of the present invention, the sealing rings 4 are arranged in pairs and are located at one end of the conical adjusting core 3 that contacts the inner wall of the semi-enclosed cavity of the piston rod 1 , and the semi-enclosed cavity is closed by the fastening plug 2 .

[0021] like Figure 1 As shown in FIG. 1 , as a preferred embodiment of the present utility model, two side holes with a diameter of 4.5 mm are provided on the piston rod 1 so as to facilitate the oil to flow out after passing through the conical surface of the conical regulating core 3 .

[0022] In one example of the utility model, when in use, oil enters from the end of the fastening plug 2, and the size of the gap between its conical surface and the inner hole of the fastening plug 2 is changed by moving the conical adjusting core 3 forward and backward. After the oil flows through the conical surface of the conical adjusting core 3, it flows out from the side hole set on the piston rod 1.

[0023] like Figure 1 and Figure 2 As shown, as another preferred embodiment of the utility model, the cone angle of the cone adjustment core 3 is adjustable, and the staff can change the cone angle synchronously.

[0024] In one example of the utility model, the cone angle of the conical adjustment core 3 is preferably 28°. When the cone angle is changed to 28°, the difference between the maximum rebound damping force and the minimum damping force can be established, so as to obtain a larger adjustable range of the rebound damping force value, so that customers can meet the off-road performance while taking into account the comfort of paved roads.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A conical adjustment core for adjusting the restoring force of a shock absorber at the end range of a piston rod, comprising a piston rod, characterized in that: Also includes: A fastening plug, wherein the fastening plug is threadedly connected to the end of the piston rod, and oil enters from the end of the fastening plug; A conical adjusting core, which is arranged inside the piston rod, and one end of which is sleeved with two sealing rings; The piston rod and the double sealing ring on the conical adjusting core form a semi-enclosed cavity, and the semi-enclosed cavity is closed by a fastening plug. The conical adjusting core is moved to change the size of the gap between its conical surface and the inner hole opened on the fastening plug, so as to adjust the oil volume. The cone surface angle of the cone-shaped adjusting core is adjustable, and the cone surface angle of the cone-shaped adjusting core is 28°, thereby obtaining a larger adjustable range of the rebound damping force value.

2. A conical adjustment core for adjusting the restoring force of a shock absorber at the piston rod end range according to claim 1, characterized in that: Two side holes with a diameter of 4.5 mm are provided on the piston rod to facilitate the oil to flow out after passing through the conical surface of the conical regulating core.

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