Front shock absorber assembly

Abstract

The utility model discloses a front shock absorber assembly which comprises a left front shock absorber and a right front shock absorber, the left front shock absorber comprises a first damping cylinder and a first piston rod extending into the first damping cylinder, and a first gasket, a first valve system, a first piston, a first elastic gasket, a first valve seat and a first nut are sequentially installed at the end of the first piston rod; the right front shock absorber comprises a second damping cylinder and a second piston rod extending into the second damping cylinder; a second valve seat, a second elastic washer, a second piston, a second valve system, a second washer and a second nut are sequentially mounted at the end part of the second piston rod; the first piston is in sliding fit with the first piston rod; the second piston is in sliding fit with the second piston rod; the mounting directions of the first piston and the second piston are opposite, and oil through holes are formed in the first piston and the second piston; the damping force of the front shock absorber and the damping force of the right front shock absorber in the compression and recovery process are asymmetric, and the shock absorption and reset performance of the vehicle in the running state can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of front shock absorbers, in particular to a front shock absorber assembly. Background Art

[0002] The front shock absorber of the motorcycle includes a left front shock absorber and a right front shock absorber, and shock absorbing springs and a damping valve system are arranged in the two shock absorbers, and the damping valve system is a symmetrical structure. During use, the left front shock absorber and the right front shock absorber generate damping force when compressed at the same time, but do not generate damping force when restored. Therefore, in situations such as turning, the vehicle may become unstable, such as the body tilting, affecting the riding stability and comfort of the vehicle. Utility Model Content

[0003] 1. Technical issues

[0004] The utility model aims to provide a front shock absorber assembly to solve the problem in the prior art that the internal damping valves of the left front shock absorber and the right front shock absorber are symmetrical, resulting in an unstable state of the vehicle during shock absorption, affecting the riding stability and comfort of the vehicle.

[0005] (II) Technical solution

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A front shock absorber assembly includes a left front shock absorber and a right front shock absorber, wherein the left front shock absorber includes a first damping cylinder and a first piston rod extending into the first damping cylinder, and the end of the first piston rod is sequentially mounted with a first gasket, a first valve system, a first piston, a first elastic gasket, a first valve seat and a first nut; the right front shock absorber includes a second damping cylinder and a second piston rod extending into the second damping cylinder, and the end of the second piston rod is sequentially mounted with a second valve seat, a second elastic gasket, a second piston, a second valve system, a second gasket and a second nut; the first piston is slidably matched with the first piston rod, and the second piston is slidably matched with the second piston rod; the first piston and the second piston are installed in opposite directions, and the first piston and the second piston are both provided with oil holes.

[0008] Preferably, a first cylinder seat is installed at the end of the first damping cylinder, and a first spring is sleeved on the first piston rod, one end of the first spring abuts against the first cylinder seat, and the other end of the first spring abuts against the first washer.

[0009] Preferably, a first buffer plug for limiting the sliding movement of the first cylinder seat is installed on the first piston rod.

[0010] Preferably, the left front shock absorber includes a first outer cylinder and a first inner cylinder slidably installed in the first outer cylinder, a third damping cylinder is installed in the first outer cylinder, the first piston rod is installed in the third damping cylinder, the first cylinder seat slides into the third damping cylinder, and the first damping cylinder is installed in the first inner cylinder; a second spring is sleeved on the first damping cylinder, and the second spring abuts against the end of the third damping cylinder.

[0011] Preferably, a first sliding sealing seat for sealing the first inner tube is provided at the end of the first outer tube.

[0012] Preferably, a second cylinder seat is installed at the end of the second damping cylinder, and a third spring is sleeved on the second piston rod, one end of the third spring abuts against the second cylinder seat, and the other end of the third spring abuts against the second valve seat.

[0013] Preferably, a second buffer plug for limiting the sliding movement of the second cylinder seat is installed on the second piston rod.

[0014] Preferably, the right front shock absorber includes a second outer cylinder and a second inner cylinder slidably installed in the second outer cylinder, a fourth damping cylinder is installed in the second outer cylinder, the second piston rod is installed in the fourth damping cylinder, the second cylinder seat slides into the fourth damping cylinder, and the second damping cylinder is installed in the second inner cylinder; a fourth spring is sleeved on the second damping cylinder, and the fourth spring abuts against the end of the fourth damping cylinder.

[0015] Preferably, a second sliding sealing seat for sealing the second inner cylinder is provided at the end of the second outer cylinder.

[0016] (III) Beneficial effects

[0017] During the compression process, the hydraulic oil in the left front shock absorber flows from the first side through the first valve system to the second side to generate a compression damping force, and the hydraulic oil in the right front shock absorber flows from the first side through the oil hole of the second piston to the second side without generating a damping force; during the recovery process, the hydraulic oil in the left front shock absorber flows from the second side through the oil hole of the first piston to the first side without generating a damping force, while the hydraulic oil in the right front shock absorber flows from the first side through the second valve system to the second side to generate a recovery damping force; thereby, during the compression and recovery processes, one side of the left and right front shock absorbers generates a damping force while the other side does not generate a damping force, that is, the damping forces of the left and right front shock absorbers are asymmetric, which can ensure the shock absorbing and resetting performance of the vehicle in the running state and avoid excessive tilting of the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the left front shock absorber in the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 3 It is a structural schematic diagram of the right front shock absorber in the utility model;

[0021] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure at B in the middle;

[0022] exist Figures 1 to 4 In the figure, the corresponding relationship between the component names or lines and the figure numbers is as follows:

[0023] Left front shock absorber 1, first damping cylinder 11, first piston rod 12, first gasket 13, first valve system 14, first piston 15, first valve seat 16, first nut 17, first cylinder seat 18, first spring 19, first buffer plug 110, first outer cylinder 111, first inner cylinder 112, third damping cylinder 113, second spring 114, first sliding sealing seat 115, first elastic gasket 116, right front shock absorber 2, second damping cylinder 21, second piston rod 22, second valve seat 23, second elastic gasket 24, second piston 25, second valve system 26, second gasket 27, second nut 28, second cylinder seat 29, third spring 210, second buffer plug 211, second outer cylinder 212, second inner cylinder 213, fourth damping cylinder 214, fourth spring 215, second sliding sealing seat 216, oil through hole 3. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-Figure 4As shown, in the embodiment of the utility model, a front shock absorber assembly is proposed, including a left front shock absorber 1 and a right front shock absorber 2, the relative sliding parts are all sliding seals, and the internal hydraulic oil flows according to the fluid channel. Specifically, the left front shock absorber 1 includes a first damping cylinder 11 and a first piston rod 12 extending into the first damping cylinder 11, and the end of the first piston rod 12 is sequentially installed with a first gasket 13, a first valve system 14, a first piston 15, a first elastic gasket 116, a first valve seat 16 and a first nut 17. According to the arrangement of the first valve system 14 and the first piston 15, when compressed, the hydraulic oil needs to be subjected to the damping force of the first valve system 14 when flowing from the first damping cylinder 11 side (hereinafter referred to as the first side) to the first piston rod 12 side (hereinafter referred to as the second side), and the compression process has a buffering effect; and when restoring, the hydraulic oil flows directly through the first piston 15 when flowing from the second side to the first side, and no damping force is generated, so that the restoration is faster.

[0026] The right front shock absorber 2 includes a second damping cylinder 21 and a second piston rod 22 extending into the second damping cylinder 21, and the end of the second piston rod 22 is sequentially installed with a second valve seat 23, a second elastic gasket 24, a second piston 25, a second valve system 26, a second gasket 27 and a second nut 28; according to the arrangement of the second piston 25 and the second valve system 26, during compression, when the hydraulic oil flows from one side of the second damping cylinder 21 (the first side) to the side of the second piston rod 22 (the second side), it flows directly through the second piston 25 without generating damping force; during recovery, the hydraulic oil flows from the second side to the first side through the second valve system 26 to generate damping force.

[0027] The first piston 15 is in sliding cooperation with the first piston rod 12, and the second piston 25 is in sliding cooperation with the second piston rod 22, specifically, in sliding sealing cooperation. The first piston 15 and the second piston 25 are installed in opposite directions, and both the first piston 15 and the second piston 25 are provided with oil holes 3, and the internal hydraulic oil can only flow through the oil holes 3.

[0028] Therefore, during compression, the left front shock absorber 1 generates damping force, and the right front shock absorber 2 generates no damping force; during recovery, the left front shock absorber 1 generates no damping force, and the right front shock absorber 2 generates damping force, so that the damping forces of a pair of shock absorbers are asymmetric, which can ensure the stability of the vehicle during operation and prevent excessive tilting of the vehicle body.

[0029] Specifically, a first cylinder seat 18 is installed at the end of the first damping cylinder 11, and a first spring 19 is sleeved on the first piston rod 12, one end of the first spring 19 abuts against the first cylinder seat 18, and the other end of the first spring 19 abuts against the first gasket 13, and the first spring 19 realizes elastic support for the first gasket 13, that is, generates a force for the opening and closing of the first valve system 14. The first cylinder seat 18 plays a role in limiting the relative sliding distance of the first damping cylinder 11.

[0030] A first buffer plug 110 for limiting the sliding of the first cylinder seat 18 is installed on the first piston rod 12 , and the first buffer plug 110 cooperates with the first cylinder seat 18 to limit the relative sliding distance of the first damping cylinder 11 with respect to the first piston rod 12 .

[0031] At the same time, the entire left front shock absorber 1 includes a first outer cylinder 111 and a first inner cylinder 112 slidably installed in the first outer cylinder 111, a third damping cylinder 113 is installed in the first outer cylinder 111, the first piston rod 12 is installed in the third damping cylinder 113, the first cylinder seat 18 slides into the third damping cylinder 113, the first damping cylinder 11 is installed in the first inner cylinder 112, a second spring 114 is sleeved on the first damping cylinder 11, and the second spring 114 abuts against the end of the third damping cylinder 113. The first piston rod 12 is supported by the relatively sliding first outer cylinder 111, and the third damping tube supports and guides the relative sliding of the first damping tube, that is, the internal and external synchronous guiding of the first damping cylinder 11 is realized to ensure the stability of the relative sliding.

[0032] A good seal also needs to be maintained when the first outer cylinder 111 and the first inner cylinder 112 slide relative to each other. Specifically, a first sliding sealing seat 115 for sealing the first inner cylinder 112 is provided at the end of the first outer cylinder 111. The sliding seal of the first inner cylinder 112 is achieved through the first sliding sealing seat 115, and a commonly used sliding sealing structure can be used.

[0033] Specifically, a second cylinder seat 29 is installed at the end of the second damping cylinder 21, and a third spring 210 is sleeved on the second piston rod 22. One end of the third spring 210 abuts against the second cylinder seat 29, and the other end of the third spring 210 abuts against the second valve seat 23. The second valve seat 23 is pressed by the third spring 210, and the sliding distance of the second damping cylinder 21 relative to the second piston rod 22 is limited by the second cylinder seat 29.

[0034] Meanwhile, a second buffer plug 211 for limiting the sliding of the second cylinder seat 29 is installed on the second piston rod 22 , and the sliding length of the second damping cylinder 21 relative to the second piston rod 22 is limited by the second buffer plug 211 .

[0035] Specifically, the entire right front shock absorber 2 includes a second outer cylinder 212 and a second inner cylinder 213 slidably mounted in the second outer cylinder 212, a fourth damping cylinder 214 is mounted in the second outer cylinder 212, the second piston rod 22 is mounted in the fourth damping cylinder 214, the second cylinder seat 29 slides into the fourth damping cylinder 214, and the second damping cylinder 21 is mounted in the second inner cylinder 213; a fourth spring 215 is sleeved on the second damping cylinder 21, and the fourth spring 215 abuts against the end of the fourth damping cylinder 214; similarly, the sliding of the second damping cylinder 21 is supported by the fourth damping cylinder 214, and the sliding cooperation of the second piston 25 and the second damping cylinder 21 is combined to realize the synchronous guiding function of the internal and external sliding, thereby improving the sliding stability. Moreover, the sliding cooperation of the second outer cylinder 212 and the second inner cylinder 213 realizes the overall external guided sliding, and under the multiple concentric sliding guiding functions, the sliding process of the entire shock absorber is more stable.

[0036] Specifically, a second sliding sealing seat 216 for sealing the second inner tube 213 is provided at the end of the second outer tube 212 . The second sliding sealing seat 216 with a mature structure is also used to seal the relative sliding process of the second inner tube 213 .

[0037] In addition, it should be noted that other components of the hydraulic shock absorber are all existing technologies. Although not mentioned in this embodiment, the structures required in the specific shock absorption process can directly adopt the existing technologies.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] 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 essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, 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 be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A front shock absorber assembly, comprising a left front shock absorber and a right front shock absorber, characterized in that: The left front shock absorber comprises a first damping cylinder and a first piston rod extending into the first damping cylinder, and the end of the first piston rod is sequentially mounted with a first gasket, a first valve system, a first piston, a first elastic gasket, a first valve seat and a first nut; The right front shock absorber comprises a second damping cylinder and a second piston rod extending into the second damping cylinder, and the end of the second piston rod is sequentially mounted with a second valve seat, a second elastic washer, a second piston, a second valve system, a second washer and a second nut; The first piston is in sliding cooperation with the first piston rod, and the second piston is in sliding cooperation with the second piston rod; The first piston and the second piston are installed in opposite directions, and both the first piston and the second piston are provided with oil holes.

2. A front shock absorber assembly according to claim 1, characterized in that: A first cylinder seat is installed at the end of the first damping cylinder, a first spring is sleeved on the first piston rod, one end of the first spring abuts against the first cylinder seat, and the other end of the first spring abuts against the first washer.

3. A front shock absorber assembly according to claim 2, characterized in that: The first piston rod is provided with a first buffer plug for limiting the sliding movement of the first cylinder seat.

4. A front shock absorber assembly according to claim 3, characterized in that: The left front shock absorber comprises a first outer cylinder and a first inner cylinder slidably mounted in the first outer cylinder, a third damping cylinder is mounted in the first outer cylinder, the first piston rod is mounted in the third damping cylinder, the first cylinder seat slides into the third damping cylinder, and the first damping cylinder is mounted in the first inner cylinder; The first damping cylinder is sleeved with a second spring, and the second spring abuts against the end of the third damping cylinder.

5. A front shock absorber assembly according to claim 4, characterized in that: A first sliding sealing seat for sealing the first inner cylinder is disposed at the end of the first outer cylinder.

6. The front shock absorber assembly according to claim 1, characterized in that: A second cylinder seat is installed at the end of the second damping cylinder, and a third spring is sleeved on the second piston rod. One end of the third spring abuts against the second cylinder seat, and the other end of the third spring abuts against the second valve seat.

7. A front shock absorber assembly according to claim 6, characterized in that: The second piston rod is provided with a second buffer plug for limiting the sliding movement of the second cylinder seat.

8. The front shock absorber assembly according to claim 6, characterized in that: The right front shock absorber comprises a second outer cylinder and a second inner cylinder slidably mounted in the second outer cylinder, a fourth damping cylinder is mounted in the second outer cylinder, the second piston rod is mounted in the fourth damping cylinder, the second cylinder seat slidably extends into the fourth damping cylinder, and the second damping cylinder is mounted in the second inner cylinder; The second damping cylinder is sleeved with a fourth spring, and the fourth spring abuts against the end of the fourth damping cylinder.

9. A front shock absorber assembly according to claim 8, characterized in that: A second sliding sealing seat for sealing the second inner cylinder is disposed at the end of the second outer cylinder.

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