A bottom valve system for lateral dampers

Abstract

This invention discloses a bottom valve system for a lateral shock absorber, mainly comprising a bottom valve seat, a bottom valve body, an oil reservoir, a working cylinder, a bottom valve compensation valve assembly, a bottom valve compression valve assembly, and bolts. The valve seat is welded to the oil reservoir to form a sealed cavity. Bolts mount the bottom valve compression valve assembly and the bottom valve compensation valve assembly onto the bottom valve body, forming an internal cavity seal with the working cylinder. The bottom valve body and bottom valve seat form a circumferential seal, leaving an oil passage for oil flow to generate damping force. This invention solves the technical problem in the prior art where, when the shock absorber is installed laterally, the upper end of the bottom valve body cannot be sealed, allowing air to flow and causing idle travel and lack of damping force in the shock absorber.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle shock absorbers, in particular to a bottom valve system for a lateral shock absorber. BACKGROUND

[0002] The lateral shock absorber of the driver's cab restrains the lateral vibration and roll of the vehicle during driving, and improves the lateral suspension characteristics of the vehicle through the extension damping force and compression damping force. As one of the most important components of commercial vehicles, the damping performance of the lateral shock absorber directly affects the driving experience of the driver.

[0003] In the existing conventional shock absorber, the flow space of the bottom valve body is uniformly distributed in the circumference. When the shock absorber is installed horizontally, the upper end of the bottom valve body is exposed to the oil, which is exposed to the air, causing the air to flow and causing the damping stroke to appear. During the driving process of the vehicle, the shock absorber loses the damping performance. SUMMARY

[0004] The present application provides a bottom valve system for a lateral shock absorber to solve the technical problem that the upper end of the bottom valve body cannot be sealed when the shock absorber is installed horizontally, causing air to flow and causing the shock absorber to have a stroke and no damping force.

[0005] To achieve the above-mentioned purpose, the present application provides a bottom valve system for a lateral shock absorber, which comprises a bottom valve seat, a bottom valve body, an oil storage cylinder, a working cylinder, a bottom valve compensation valve system combination, a bottom valve compression valve system combination and a bolt, characterized in that the valve seat and the oil storage cylinder are welded to form a sealed cavity, the bolt is used to install the bottom valve compression valve system combination and the bottom valve compensation valve system combination on the bottom valve body, and the bottom valve body and the bottom valve seat form a circumferential seal and an inner cavity seal with the working cylinder.

[0006] Further, the bolt passes through the bottom valve compression valve system combination, then passes through the bottom valve body and the bottom valve compensation valve system combination, and then uses a pressure pad to press the valve system, and finally uses the tightening torque of the nut to assemble the combination to form the bottom valve system.

[0007] Further, the inside of the bottom valve system cooperates with the working cylinder to form a sealed cavity, and the outside cooperates with the bottom valve seat and the oil storage cylinder to form a sealed cavity.

[0008] Further, the bottom valve compensation valve system combination is arranged in the inner cavity of the working cylinder and the upper end of the bottom valve body.

[0009] Further, the bottom valve compression valve system combination is arranged in the circumferential sealed cavity connected between the bottom valve seat and the lower end of the bottom valve body.

[0010] Further, the circumferential seal formed by the connection of the bottom valve seat and the bottom valve body leaves an oil flow channel for the flow of oil to form damping force.

[0011] Further, the oil passage is arranged at the lower end of the shock absorber during installation.

[0012] Based on the above technical solution, the embodiment of the present application can at least produce the following technical effects:

[0013] 1. The bottom valve valve system for a lateral shock absorber provided by the present application forms a bottom valve valve system through valve combination, cooperates with a working cylinder to form a sealed cavity inside, cooperates with a bottom valve body and an oil storage cylinder to form a sealed cavity outside, and only leaves an oil passage, which is located at the lower end during installation of the shock absorber. During movement of the shock absorber, all oil can only pass through this part, forming a damper, avoiding air circulation in the valve system, solving the problem of air gap formed during lateral installation of the shock absorber, and suppressing body roll and lateral vibration of the vehicle, thereby providing good comfort and handling performance for users.

[0014] 2. The bottom valve valve system for a lateral shock absorber provided by the present application tightly fixes the bottom valve valve system through thread connection between a bolt and a nut, and adopts a compression pad to prevent oil in the sealed cavity from leaking into the circumferential seal due to poor sealing. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the embodiment of the present application;

[0016] In the figure: 1, bottom valve seat; 2, bottom valve body; 3, oil storage cylinder; 4, working cylinder; 5, nut; 6, compression pad; 7, bottom valve compensation valve combination; 8, bottom valve compression valve combination; 9, bolt; 10, oil passage. DETAILED DESCRIPTION

[0017] In order to better understand the purpose, structure and function of the present application, the bottom valve valve system for a lateral shock absorber of the present application is further described in detail below in combination with the drawings.

[0018] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “lateral”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms “first”, “second”, “third” are only for description purposes and cannot be understood as indicating or implying relative importance.

[0019] As shown in the figure, the bottom valve valve system for the lateral damper of the present application comprises a bottom valve seat 1, a bottom valve body 2, an oil storage cylinder 3, a working cylinder 4, a bottom valve compensation valve system combination 7, a bottom valve compression valve system combination 8 and a bolt 9, wherein the bottom valve seat 1 is connected with the bottom valve body 2 to form a circumferential seal, the bottom valve body 1 is an arc surface with a semicircular protrusion, the bottom valve body 2 is a cylindrical platform with a groove, the bottom valve compression valve system combination 8 is arranged in the groove of the bottom valve body 2 and is fixed and limited by the bolt 9, the bottom valve compensation valve system combination 7 is installed on the back of the bottom valve body 2, the bolt 9 passes through the bottom valve body 2 and the bottom valve compensation valve system combination 7, a nut 5 is installed at the end of the bolt 9 to be screwed, the components connected on the bolt 9 are assembled by tightening torque, the bottom valve valve system is formed, and a pressure pad 6 is arranged between the nut 5 and the bottom valve compensation valve system combination 7 to ensure the sealing between the bottom valve valve systems.

[0020] The bottom valve seat 1 and the oil storage cylinder 3 are connected by welding to form a sealed cavity, the inside of the bottom valve valve system formed by the valve system combination cooperates with the working cylinder 4 to form an inner sealed cavity, the outside of the bottom valve valve system cooperates with the bottom valve body 2 and the oil storage cylinder 3 to form an outer sealed cavity, and an oil passage 10 is left at the lower end of the outer sealed cavity for oil flow to form damping force.

[0021] The specific operation mode of the present application is as follows: the bottom valve seat 1 and the oil storage cylinder 3 are fixedly connected by welding to form a sealed cavity, the bottom valve compression valve system combination 8 is installed in the groove of the bottom valve body 2 under the action of the bolt 9, the bottom valve compensation valve system combination 7 is installed on the back of the bottom valve body 2, the pressure pad 6 is arranged on the bottom valve compensation valve system combination 7, the combination is assembled and sealed by the tightening torque of the nut 5, and the bottom valve valve system is formed; the back of the bottom valve body 2 is press-fitted with the working cylinder 4 to form an inner cavity seal, the tapered surface of the bottom valve body 2 is connected and fixed with the inner cavity tapered surface of the bottom valve seat 1 to form a circumferential seal, only one oil passage 10 is left in the circumferential seal for oil flow to form damping force, and a certain amount of damper oil is injected into the sealed cavity. When the damper is installed, the oil passage 10 is located at the lower end, and during the movement of the damper, all the oil can only pass through this part to form a damper, avoiding the circulation of air in the valve system, solving the problem of the idle stroke formed when the damper is installed laterally, and inhibiting the roll and lateral vibration of the vehicle body, thereby providing good comfort and handling performance for users.

[0022] It can be understood that the present application is described by some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, these features and embodiments can be modified to adapt to specific conditions and materials under the guidance of the present application without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope of the present application.

Claims

1. A bottom valve valve train system for a transverse shock absorber, comprising a bottom valve seat (1), a bottom valve body (2), an oil reservoir (3), a working cylinder (4), a compression valve train assembly (8) and a compensation valve train assembly (7). cylinder (4), bottom valve compensation valve train combination (7), bottom valve compression valve train combination (8) and bolt (9), characterized in that The bottom valve seat (1) and the oil reservoir (3) are welded to form a sealed cavity, and a bolt (9) is used to mount the bottom valve compression valve train assembly (8) and the bottom valve compensation valve train assembly (7) on the bottom valve body (2), and the bottom valve body (2) forms a circumferential seal with the bottom valve seat (1) and an inner cavity seal with the working cylinder (4). The circumferential seal formed by the connection of the bottom valve seat (1) and the bottom valve body (2) leaves an oil passage (10) for the flow of oil to generate damping force. The oil passage (10) is arranged at the lower end of the shock absorber during installation.

2. A base valve valve train system for a lateral damper as defined in claim 1, wherein, The bolt (9) passes through the bottom valve compression valve train assembly (8), then through the bottom valve body (2) and the bottom valve compensation valve train assembly (7), and is assembled by the tightening torque of the nut (5) on the compression pad (6) and the valve train assembly to form the bottom valve valve train.

3. A base valve valve train system for a lateral damper as defined in claim 2, wherein, The inside of the bottom valve valve train cooperates with the working cylinder (4) to form a sealed cavity, and the outside cooperates with the bottom valve seat (1) and the oil reservoir (3) to form a sealed cavity.

4. A base valve valve train system for a lateral damper as defined in claim 1, wherein, The bottom valve compensation valve train assembly (7) is arranged in the inner cavity of the working cylinder (4) and the bottom valve body (2).

5. A base valve valve train system for a lateral damper as defined in claim 1, wherein, The bottom valve compression valve train assembly (8) is arranged in the circumferential seal cavity connected by the bottom valve seat (1) and the bottom valve body (2).

Images