Rigidity-variable adjustable air bag shock absorber
By incorporating adjusting components and washers into the airbag shock absorber, the airbag stiffness and damping force can be adjusted synchronously, solving the problem of poor airbag shock absorber adjustment in existing technologies and improving the adjustment efficiency and ride comfort of heavy truck cabs.
Patent Information
- Application Number
- CN202520554810.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-03-27
AI Technical Summary
During the calibration process of existing airbag shock absorbers, the stiffness of the airbag cannot be adjusted after the damping force is adjusted, resulting in the inability to achieve the expected calibration effect and meet the usage requirements.
A variable stiffness adjustable airbag shock absorber was designed. By setting an adjusting component between the airbag base and the oil reservoir, the installation height of the airbag can be adjusted using adjusting washers to adjust the stiffness. Combined with the damping force adjustment of the detachable shock absorber, the stiffness and damping force of the airbag can be adjusted simultaneously.
The damping force and stiffness of the airbag shock absorber were adjusted simultaneously, which improved the adjustment efficiency and comfort of the heavy truck cab and met the usage requirements.
Smart Images
Figure CN223754527U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of shock absorber, concretely relates to a variable stiffness adjustable air bag shock absorber. BACKGROUND
[0002] The term "shock absorber" is a general term in the automotive chassis industry, and the automotive shock absorber is actually a vibration damper. The shock absorber is not only used in the suspension of the automobile, but also applied in other positions, such as the cab, the seat, the steering wheel, etc., and can also be used as a bumper on the vehicle bumper. The quality of the shock absorber will directly affect the comfort of the automobile passengers. However, in order to confirm the performance requirements such as damping force and spring stiffness of the vehicle, the shock absorber needs to be repeatedly disassembled to provide different damping forces, and then the shock absorber adjustment is completed, and the detachable shock absorber is born.
[0003] At present, the shock absorber used by the heavy truck cab adopts the air bag type shock absorber, and the air bag shock absorber is composed of a cylinder type shock absorber and an air bag. In order to conveniently complete the adjustment of the damping force, the cylinder type shock absorber adopts a detachable shock absorber, and the air bag is connected to the detachable shock absorber through the base and the upper cover. However, after the damping force is adjusted through the detachable shock absorber, the position and state of the air bag on the detachable shock absorber are inconvenient, so the working stiffness is constant, which cannot be well matched with the damping force of the detachable shock absorber, and thus the expected adjustment effect cannot be achieved, and the use requirement cannot be met. UTILITY MODEL CONTENTS
[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a variable stiffness adjustable air bag shock absorber, which is used to solve the technical problem that the stiffness of the air bag cannot be adjusted after the adjustment of the damping force in the current air bag shock absorber adjustment process, and thus the use requirement cannot be met.
[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a variable stiffness adjustable air bag shock absorber, which comprises a detachable shock absorber, an air bag, an air bag base and an air bag upper cover. One end of the air bag is connected to the oil storage cylinder of the detachable shock absorber through the air bag base, and the other end is connected to the piston rod of the detachable shock absorber through the air bag upper cover. The end of the oil storage cylinder is provided with a spring seat for supporting the air bag base. An adjusting piece is arranged between the spring seat and the air bag base and supported therebetween, and is used to adjust the connecting position of the air bag base on the oil storage cylinder.
[0006] Preferably, the adjusting piece adopts a split structure and comprises a plurality of adjusting washers with the same structure.
[0007] Preferably, the adjusting washers adopt plastic washers.
[0008] Preferably, the spring seat is connected to the oil storage cylinder by welding.
[0009] Preferably, the detachable shock absorber further comprises a working cylinder, a piston and a detachable end cover to realize detachability.
[0010] Preferably, the working cylinder is arranged in the oil storage cylinder and connected by the detachable end cover, the piston rod extends into the working cylinder through the detachable end cover, and the piston is connected to the end of the piston rod.
[0011] The technical scheme of the detachable shock absorber has the following beneficial effects:
[0012] The detachable shock absorber is combined with the air bag with adjustable stiffness, so that the damping force of the shock absorber and the stiffness of the air bag are simultaneously adjusted, thereby improving the adjustment efficiency and effect of the air bag shock absorber of the heavy truck cab. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is an embodiment schematic view of the air bag shock absorber with adjustable stiffness.
[0014] Among them, Figure 1 1, detachable shock absorber, 11, piston rod, 12, detachable end cover, 13, oil storage cylinder, 14, working cylinder, 15, piston, 2, air bag base, 3, air bag, 4, air bag cover, 5, adjusting piece, 6, spring seat. DETAILED DESCRIPTION
[0015] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application, and do not limit the scope of the present application.
[0016] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 a limitation on the present application.
[0017] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "mount", "link", "connect" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be two element internal communication, for ordinary skilled person in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific circumstances.
[0018] Specific implementation is as follows:
[0019] As shown in Figure, Figure 1 A variable stiffness adjustable air bag shock absorber, the air bag shock absorber includes detachable shock absorber 1, air bag 3, air bag base 2 and air bag upper cover 4.
[0020] Detachable shock absorber 1 includes piston rod 11, detachable end cover 12, oil storage cylinder 13, working cylinder 14 and piston 15.Working cylinder 14 is placed in oil storage cylinder 13, and oil storage cylinder 13 and working cylinder 14 are connected through detachable end cover 12, realizing detachable function.Piston rod 11 penetrates detachable end cover 12 and enters working cylinder 14, and the end of piston rod 11 extending into working cylinder 14 is connected with piston 15.Detachable shock absorber 1 adopts detachable shock absorber in prior art, and other structures are not described in detail here.
[0021] Spring seat 6 is arranged at the end of oil storage cylinder 13 away from detachable end cover 12, for supporting air bag base 2 connected on oil storage cylinder 13.Air bag base 2 is connected at the end of air bag 3, and the other end of air bag 3 is connected at the end of piston rod 11 through air bag upper cover 4, realizing the connection of air bag 3 and detachable shock absorber 1.Adjusting piece 5 is arranged between spring seat 6 and air bag base 2, and the width of adjusting piece 5 is adjustable, for adjusting the connecting position of air bag base 2 on oil storage cylinder 13, and further realizing the adjustment of the installation height of air bag 3.
[0022] Further, adjusting piece 5 adopts split structure, including a plurality of adjusting washers with same structure.Based on this, according to the adjusted damping force of detachable shock absorber 1, the number of adjusting washers is selected and verified, the installation height of air bag 3 is adjusted to realize the adjustment of air bag stiffness, and the adjustment flexibility is better.
[0023] In the embodiment, the adjusting washer adopts plastic washer, for example, PA66-GF30 material, and meets Shore hardness ≥60.
[0024] Further, spring seat 6 adopts annular metal pipe material, has certain impact strength, and is connected on oil storage cylinder 13 through welding, guaranteeing the firmness of connection and support.
[0025] The variable stiffness adjustable air bag shock absorber of the embodiment is used in working, and the detachable shock absorber 1 is convenient for adjusting the damping force according to the requirement, so as to improve the driving comfort. After the damping force of the detachable shock absorber 1 is adjusted, the proper installation height of the air bag 3 is adjusted by selecting the proper number of plastic washers, so that the air bag 3 provides the required stiffness. The above-mentioned arrangement realizes the synchronous adjustment of the damping force of the detachable shock absorber 1 and the stiffness of the air bag 3, improves the adjustment efficiency and effect of the heavy truck cab air bag shock absorber, better meets the use requirement, and improves the driving comfort.
[0026] The utility model is described exemplarily above in combination with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various non-essential improvements are made by adopting the technical scheme of the utility model, or the concept and technical scheme of the utility model are directly applied to other occasions without improvement, all of which are within the protection scope of the utility model.
Claims
1. A variable stiffness adjustable gas bag shock absorber, comprising a detachable shock absorber, a gas bag, a gas bag base and a gas bag upper cover, one end of the gas bag is connected to the oil storage cylinder of the detachable shock absorber through the gas bag base, the other end of the gas bag is connected to the piston rod of the detachable shock absorber through the gas bag upper cover, characterized in that, The end of the oil storage cylinder is provided with a spring seat for supporting the air bag base, and an adjusting piece is arranged between the spring seat and the air bag base and supported therebetween for adjusting the connecting position of the air bag base on the oil storage cylinder.
2. A variable-stiffness adjustable gas-chamber shock absorber according to claim 1, characterized in that, The adjusting piece adopts a split structure and comprises a plurality of adjusting washers with the same structure.
3. A variable-stiffness adjustable gas-chamber shock absorber according to claim 2, characterized in that, The adjusting washers adopt plastic washers.
4. A variable-stiffness adjustable gas-chamber shock absorber according to claim 1, characterized in that, The spring seat is connected to the oil storage cylinder by welding.
5. A variable-stiffness adjustable gas-chamber shock absorber according to claim 1, characterized in that, The detachable shock absorber further comprises a working cylinder, a piston and a detachable end cover to realize detachability.
6. A variable-stiffness adjustable gas-chamber shock absorber according to claim 5, characterized in that, The working cylinder is arranged in the oil storage cylinder and connected through the detachable end cover, the piston rod extends into the working cylinder through the detachable end cover, and the piston is connected to the end of the piston rod.