Shock absorber damping adjustment structure

Abstract

This utility model discloses a damping adjustment structure for a shock absorber, including a matching piston cylinder, piston rod, and spring 1. A sleeve is threadedly connected to the piston cylinder near its tail end. In use, the sleeve can be rotated to adjust the elastic force of spring 1, thereby adjusting the damping. In this design, a locking rod is added. After the sleeve rotates to the corresponding position, the head end of the locking rod engages in a groove on the peripheral wall of the sleeve to restrict its circumferential rotation, thereby maintaining the damping of the shock absorber and facilitating its use.

Description

Technical Field

[0001] This utility model relates to the field of automotive device technology, specifically to a shock absorber damping adjustment structure. Background Technology

[0002] Shock absorbers are widely used in vehicles, typically to suppress the oscillations caused by the rebound after the spring absorbs the shock. They can greatly improve the vehicle's shock absorption performance and enhance its adaptability, comfort, and stability to varying degrees. However, most shock absorbers currently cannot adjust their damping, thus failing to adjust the damping according to different road conditions, which affects ride comfort and needs improvement. Utility Model Content

[0003] To address at least one of the aforementioned technical deficiencies, this utility model provides the following technical solution:

[0004] This application discloses a damping adjustment structure for a shock absorber, including a piston cylinder, a piston rod, and a spring. A sleeve is threadedly connected to the piston cylinder near its tail end. The spring is disposed between the sleeve and a fixed seat at the end of the piston rod. Grooves are spaced apart on the peripheral wall of the sleeve and extend to the tail end. A locking rod is radially elastically connected to the fixed seat at the tail end of the piston cylinder, and the first end of the locking rod is inserted into the groove. When the first end of the locking rod is in the groove, the circumferential rotation of the sleeve and the piston cylinder is restricted.

[0005] In use, the sleeve can be rotated to adjust the elastic force of spring one, thereby adjusting the damping. In addition, a locking rod is added to this solution. After the sleeve is rotated to the corresponding position, the first end of the locking rod is locked into the groove on the peripheral wall of the sleeve to restrict its circumferential rotation, thereby maintaining the damping of the shock absorber and making it convenient to use.

[0006] Furthermore, the fixed base two is provided with opposite movable holes, and the locking rod passes through the movable holes from its tail end and is elastically connected to the fixed base two. The movable holes are reserved for the radial movement of the locking rod, which helps to guide the movement of the locking rod and facilitates the pulling of the locking rod.

[0007] Furthermore, a locking post one is provided at the peripheral wall of the tail end of the locking rod, and a locking post two is provided at the peripheral wall of the corresponding fixing seat two. A spring two is provided between the locking post one and the locking post two to form an elastic connection between the locking rod and the fixing seat two. The two ends of the spring two are fixed to the locking post one and the locking post two respectively. In the initial state, the spring force of the spring two keeps the head end of the locking rod in the groove. The placement of the locking post one and the locking post two facilitates the connection and installation of the spring two.

[0008] Furthermore, the peripheral wall of the sleeve is stepped along the axial direction, and a groove is provided at the middle step surface. The stepped configuration can help reduce weight.

[0009] Furthermore, the first fixing seat has a horizontal fixing hole 1 along its upper edge, and the second fixing seat has a horizontal fixing hole 2 along its upper edge, which facilitates docking with other structures.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. The improved structure of this utility model restricts the rotation of the sleeve through a locking rod with elastic connection, which facilitates maintaining the damping to the adjusted level and makes it convenient to use. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the damping adjustment structure of the shock absorber in Example 1;

[0014] Figure 2 This is a schematic diagram of the locking rod's connection structure;

[0015] The attached figures are labeled as follows:

[0016] 1. Piston rod; 2. Piston cylinder; 3. Sleeve; 4. Fixing seat one; 5. Fixing hole one; 6. Fixing seat two; 7. Spring one; 8. Fixing hole two; 9. Locking rod; 10. Spring two; 11. Groove; 12. Movable hole; 13. Locking post one; 14. Locking post two. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Example 1

[0019] like Figure 1 , Figure 2 As shown, in this example, the damping adjustment structure of the shock absorber includes a matching piston cylinder 2, piston rod 1 and spring 7. For example, a fixing seat 4 is installed at the tail end of the piston cylinder 2, and a fixing seat 6 is installed at the head end of the piston rod 1. Fixing holes 5 and 8 are formed horizontally at the ends of fixing seats 4 and 6, respectively, and are then connected and installed with other mechanisms through fixing holes 1 and 2.

[0020] In this example, a threaded surface is formed on the piston cylinder 2 near its tail end, and a meshing threaded surface is formed on the inner wall of the sleeve 3. The sleeve 3 is fitted onto the piston cylinder 2, and the two threaded surfaces are connected by threaded engagement. A spring 7 is installed between the sleeve 3 and the fixed seat 4 at the end of the piston rod 1. If the spring 7 is fitted onto the piston cylinder 2 and the corresponding piston rod 1, one end of the spring 7 abuts against the fixed seat 4 and the other end abuts against the sleeve 3.

[0021] In this example, grooves 11 are formed circumferentially at intervals on the peripheral wall of the sleeve 3. The grooves 11 extend axially to the tail end of the sleeve. Specifically, the peripheral wall of the sleeve 3 is stepped along the axial direction, and the grooves 11 are formed at the middle stepped surface. The locking rod 9 is radially elastically connected to the fixing seat 6 at the tail end of the piston cylinder 2, and the head end of the locking rod 9 is inserted into the groove 11. When the head end of the locking rod 9 is in the groove 11, the circumferential rotation of the sleeve and the piston cylinder 2 is restricted. Specifically, a movable hole 12 is formed axially at the relative position of the fixing seat 6. The tail end of the locking rod 9 extends out from the movable hole 12. The movable hole is waist-shaped and provides space for the locking rod to move radially. Then, by moving the locking rod, its head end is disengaged from the groove.

[0022] The tail end of the locking rod 9 is connected to the corresponding peripheral wall of the fixed seat 2 6 by an elastic element, such as spring 2 10 as the elastic element. The peripheral wall of the tail end of the locking rod 9 is radially fixed with a locking post 13, and the peripheral wall of the corresponding fixed seat 2 is radially fixed with a locking post 2 14. The head end and tail end of spring 2 10 are fixed to the corresponding locking post 13 and locking post 2 14, respectively. In the initial state, spring 2 is in a stretched state. The elastic force of spring 2 makes the head end of the locking rod in the groove. At this time, the circumferential rotation of the sleeve is restricted. Force needs to be applied to move the locking rod radially outward, so that the head end of the locking rod is disengaged from the groove. Then the sleeve can be rotated to adjust the damping. After the sleeve rotates to the predetermined position, the force pulling the locking rod outward is removed. Under the action of spring 2, the locking rod is reset, and the head end of the locking rod is locked into the groove to restrict the circumferential rotation of the sleeve.

[0023] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A damping adjustment structure for a shock absorber, comprising a matching piston cylinder, piston rod, and spring, characterized in that, A sleeve is threadedly connected to the piston cylinder near its tail end. A spring is provided between the sleeve and a fixed seat at the end of the piston rod. Grooves are provided at intervals on the circumferential wall of the sleeve, and the grooves extend to the tail end. A locking rod is radially elastically connected to a fixed seat at the tail end of the piston cylinder, and the first end of the locking rod is inserted into the groove. When the first end of the locking rod is in the groove, the circumferential rotation of the sleeve and the piston cylinder is restricted.

2. The damping adjustment structure of the shock absorber as described in claim 1, characterized in that: The fixed base 2 is provided with movable holes, and the locking rod passes through the movable holes from its tail end and is elastically connected to the fixed base 2. The movable holes are reserved to allow the locking rod to move radially.

3. The damping adjustment structure of the shock absorber as described in claim 2, characterized in that: A locking post 1 is provided at the peripheral wall of the tail end of the locking rod, and a locking post 2 is provided at the peripheral wall of the corresponding fixing seat 2. A spring 2 is provided between the locking post 1 and the locking post 2 to form an elastic connection between the locking rod and the fixing seat 2. The two ends of the spring 2 are fixed to the locking post 1 and the locking post 2 respectively. In the initial state, the spring force of the spring 2 makes the head end of the locking rod in the groove.

4. The damping adjustment structure of the shock absorber as described in claim 1, characterized in that: The sleeve has a stepped shape along the axial direction on its peripheral wall, and a groove is provided at the middle stepped surface.

5. The damping adjustment structure of the shock absorber as described in claim 1, characterized in that: The first fixing seat is provided with a first fixing hole horizontally along its upper edge, and the second fixing seat is provided with a second fixing hole horizontally along its upper edge.

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