Shock absorber assembly

Abstract

The utility model relates to the technical field of shock absorption, in particular to a shock absorber assembly which comprises an outer cylinder. The inner cylinder is coaxially arranged in the outer cylinder, an oil storage cavity is formed between the inner cylinder and the outer cylinder, oil is contained in the inner cylinder, a piston rod is slidably assembled in the inner cylinder, and the upper end of the piston rod is used for being connected with an automobile suspension. The rebuilt valve is arranged on the piston rod and matched with the inner cylinder, the interior of the inner cylinder is divided into an upper cavity and a lower cavity by the rebuilt valve, and the upper cavity and the lower cavity are communicated through the rebuilt valve and are both communicated with the oil storage cavity; the distribution valve is arranged on the outer side wall of the outer cylinder and communicates with the oil storage cavity, the distribution valve is connected with a distribution motor and an energy accumulator, and the energy accumulator is used for discharging oil into the oil storage cavity or pumping out oil in the oil storage cavity. When the shock absorber assembly is used, the structure is simple, meanwhile, the pressure of oil liquid is adjusted through the distribution valve and the energy accumulator, and finally the purpose that a good shock absorption effect of an automobile can be guaranteed under different working conditions is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration reduction, in particular to a vibration reducer assembly. Background Art

[0002] With the development of the automobile industry, people have higher requirements for the smoothness of vehicle driving and operational stability. Although the newly emerging semi-active suspension in China can automatically adjust the suspension damping force parameters according to the vibration and working condition changes during vehicle operation, so that the vehicle vibration frequency is controlled within the ideal range, the effect is not obvious during vehicle steering, starting, braking and other working conditions. Utility Model Content

[0003] The utility model provides a shock absorber assembly to solve the technical problem that the semi-active suspension in the prior art has a poor shock absorption effect during working conditions such as automobile steering, starting and braking.

[0004] In order to solve the above problems, the utility model provides a shock absorber assembly adopting the following technical solutions:

[0005] A shock absorber assembly includes an outer cylinder, and the axial direction of the outer cylinder is defined as the up and down direction; an inner cylinder is coaxially arranged in the outer cylinder and an oil storage chamber is formed between the inner cylinder and the outer cylinder, the inner cylinder is filled with oil, and a piston rod is slidably assembled in the inner cylinder, and the upper end of the piston rod is used to connect with the automobile suspension; a restoring valve is arranged on the piston rod and adapted to the inner cylinder, and the restoring valve divides the interior of the inner cylinder into an upper chamber and a lower chamber, and the upper chamber and the lower chamber are connected through the restoring valve and are both connected to the oil storage chamber; a distribution valve is arranged on the outer side wall of the outer cylinder and is connected to the oil storage chamber, and the distribution valve is connected to a distribution motor and an accumulator, and the accumulator is used to discharge oil into the oil storage chamber or to extract the oil in the oil storage chamber.

[0006] The beneficial effect is that when the shock absorber assembly of the utility model is in use, the distribution motor drives the distribution valve to work, so that the accumulator discharges oil to the oil storage chamber through the distribution valve or extracts the oil in the oil storage chamber to change the amount of oil in the upper chamber and the lower chamber, and then change the oil pressure in the upper chamber and the lower chamber, and finally achieve the purpose of ensuring a good shock absorption effect of the automobile under different working conditions. When the shock absorber assembly of the utility model is in use, the structure is simple, and the pressure of the oil is adjusted by the distribution valve and the accumulator at the same time, and finally achieves the purpose of ensuring a good shock absorption effect of the automobile under different working conditions.

[0007] Furthermore, the outer cylinder is provided with a first through hole and a second through hole for communicating with the distribution valve, and the first through hole and the second through hole are both connected to the oil storage chamber. An annular plate is provided on the outer wall of the inner cylinder, and the annular plate divides the oil storage chamber into an upper part connected to the first through hole and a lower part connected to the second through hole. The upper end of the upper part is connected to the upper chamber, and the lower end of the lower part is connected to the lower chamber.

[0008] Beneficial effects: The structure is simple and it is convenient to change the oil pressure in the upper chamber and the lower chamber.

[0009] Furthermore, a mounting piece is coaxially provided on the outer side wall of the outer cylinder to fix the outer cylinder.

[0010] Beneficial effect: easy to install and fix.

[0011] Furthermore, the piston rod includes a round rod section and a sleeve section connected below the round rod section, an electromagnetic valve and a valve stem are provided in the sleeve section, the valve stem includes a circular ring section provided at the lower end of the sleeve section to seal the interior of the sleeve section, and a straight cylinder section coaxially connected below the circular ring section, the electromagnetic valve is provided above the circular ring section, and the recovery valve is provided at the lower end of the sleeve section.

[0012] Beneficial effect: It is convenient to adjust the oil pressure in the upper chamber and the lower chamber, thereby adjusting the damping force in the upper chamber and the lower chamber, so that the shock absorber assembly can ensure a good vibration reduction effect under different working conditions.

[0013] Furthermore, guide members are provided at the upper ends of the outer cylinder and the inner cylinder, and sliding holes extending in the up-down direction are opened on the guide members. The round rod segment is adapted to the sliding hole and is slidably assembled in the sliding hole in the up-down direction.

[0014] Beneficial effect: Improve the sliding stability of the round rod segment and avoid the shaking of the piston rod.

[0015] Furthermore, a U-shaped piece is coaxially provided on the outer side wall of the outer cylinder, and the distribution valve is installed on the U-shaped piece.

[0016] Beneficial effects: simple structure, convenient installation and removal of the distribution valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

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

[0019] Figure 2 It is a cross-sectional view of a shock absorber assembly of the utility model;

[0020] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0022] Figure 5 It is a schematic diagram of the structure inside the inner cylinder of a shock absorber assembly of the utility model;

[0023] Figure 6 The utility model is a cross-sectional view of the internal structure of the inner cylinder of the shock absorber assembly.

[0024] Description of reference numerals:

[0025] 1. Outer cylinder; 2. Inner cylinder; 3. Piston rod; 4. Round rod section; 5. Sleeve section; 6. Solenoid valve; 7. Valve stem; 8. Circular ring section; 9. Straight cylinder section; 10. Restoration valve; 11. Upper chamber; 12. Lower chamber; 13. Guide member; 14. Sliding hole; 15. Base; 16. Guide hole; 17. Mounting member; 18. U-shaped member; 19. Distribution valve; 20. Distribution motor; 21. Accumulator; 22. Ring plate; 23. Oil storage chamber; 24. First through hole; 25. Second through hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0028] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0029] Embodiment 1 of a shock absorber assembly provided by the utility model:

[0030] like Figures 1 to 6 As shown, a shock absorber assembly of the utility model comprises an outer cylinder 1, an inner cylinder 2 coaxially arranged in the outer cylinder 1, a piston rod 3, a valve stem 7 and a restoring valve 10, wherein the axial direction of the outer cylinder 1 is the up-down direction.

[0031] like Figure 1 and Figure 2 As shown, the outer wall of the outer cylinder 1 is provided with a mounting member 17 and a U-shaped member 18. The mounting member 17 is coaxially sleeved on the outer side of the outer cylinder 1. The mounting member 17 is used to fix the outer cylinder 1 on the vehicle body.

[0032] like Figure 1 and Figure 4As shown, a U-shaped member 18 is disposed on the outer wall of the outer tube 1, and a distribution valve 19 is disposed on the U-shaped member 18. The distribution valve 19 is connected to a distribution motor 20 and an accumulator 21. The outer tube 1 is provided with a first through hole 24 and a second through hole 25 for communicating with the distribution valve, and the first through hole 24 and the second through hole 25 are both communicated with the inner cavity of the outer tube 1.

[0033] A base 15 is also provided at the bottom of the outer tube 1, and the base 15 is used to seal the bottom of the outer tube 1. A guide member 13 is also provided at the upper end of the outer tube 1, and a sliding hole 14 extending in the up-down direction is opened on the guide member 13.

[0034] like Figure 3 As shown, the upper end of the inner cylinder 2 is fixedly connected to the guide member 13 and the inner cylinder 2 is arranged on the base 15. The inner cylinder 2 is coaxially arranged in the outer cylinder 1. An oil storage chamber 23 is formed between the inner cylinder 2 and the outer cylinder 1. An annular plate 22 is coaxially arranged on the outer wall of the inner cylinder 2. The annular plate 22 divides the oil storage chamber 23 into an upper part connected to the first through hole 24 and a lower part connected to the second through hole 25. The upper end of the upper part is connected to the upper chamber 11, and the lower end of the lower part is connected to the lower chamber 12.

[0035] In this embodiment, a guide hole 16 for connecting the upper chamber with the oil storage chamber 23 is formed on the guide member 13 .

[0036] like Figure 2 , Figure 5 and Figure 6 As shown, the piston rod 3 comprises a round rod section 4 and a sleeve section 5 connected below the round rod section 4 .

[0037] The upper end of the round rod segment 4 is used to connect with the automobile suspension and is coaxially slidably assembled in the sliding hole 14. The round rod segment 4 is sealed and slidably connected with the guide member 13. A connecting hole is opened on the circumference of the sleeve segment 5. The sleeve segment 5 is provided with a solenoid valve 6. The solenoid valve 6 connects the inside of the sleeve segment 5 with the outside through the connecting hole.

[0038] The valve stem 7 includes a circular ring section 8 provided at the lower end of the sleeve section 5 to seal the interior of the sleeve section 5 and a straight cylinder section 9 coaxially connected below the circular ring section 8. The circular ring section 8 is provided below the electromagnetic valve 6. The valve stem 7 is used to connect the electromagnetic valve 6 with the inner cavity of the inner cylinder 2.

[0039] The restoring valve 10 is sleeved on the straight tube section 9 and adapted to the inner tube 2. The restoring valve 10 divides the interior of the inner tube 2 into an upper chamber 11 and a lower chamber 12. The upper chamber 11 and the lower chamber 12 are connected through the restoring valve 10. One end of the solenoid valve 6 is connected to the upper chamber 11, and the other end is connected to the lower chamber 12 through the valve stem 7.

[0040] When a shock absorber assembly of the utility model is in use, the distribution motor 20 drives the distribution valve 19 to work, so that the accumulator 21 discharges oil to the oil storage chamber 23 through the distribution valve 19 or extracts the oil in the oil storage chamber 23, so as to change the oil volume in the upper chamber 11 and the lower chamber 12, and then change the oil pressure in the upper chamber 11 and the lower chamber 12, and finally achieve the purpose of ensuring a good shock absorption effect of the automobile under different working conditions.

[0041] The shock absorber assembly of the utility model has a simple structure when in use, and the pressure of the oil is adjusted by the distribution valve and the accumulator, thereby finally achieving the purpose of ensuring a good shock absorption effect of the automobile under different working conditions.

[0042] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "upper", "lower", "bottom", "inner" and other terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings of this specification, which are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

[0044] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A shock absorber assembly, characterized in that: include: The outer cylinder is defined as having an axial direction of the outer cylinder as the up-down direction; The inner cylinder is coaxially arranged in the outer cylinder and an oil storage chamber is formed between the inner cylinder and the outer cylinder. The inner cylinder is filled with oil. A piston rod is slidably mounted in the inner cylinder. The upper end of the piston rod is used to connect with the automobile suspension. A recovery valve is arranged on the piston rod and is adapted to the inner cylinder. The recovery valve divides the inner cylinder into an upper chamber and a lower chamber. The upper chamber and the lower chamber are connected through the recovery valve and are both connected to the oil storage chamber. The distribution valve is arranged on the outer wall of the outer cylinder and is connected to the oil storage chamber. The distribution valve is connected to a distribution motor and an accumulator. The accumulator is used to discharge oil to the oil storage chamber through the distribution valve or to extract the oil in the oil storage chamber.

2. A shock absorber assembly according to claim 1, characterized in that: The outer cylinder is provided with a first through hole and a second through hole for communicating with the distribution valve, and the first through hole and the second through hole are both connected to the oil storage chamber. An annular plate is provided on the outer wall of the inner cylinder, and the annular plate divides the oil storage chamber into an upper part connected to the first through hole and a lower part connected to the second through hole. The upper end of the upper part is connected to the upper chamber, and the lower end of the lower part is connected to the lower chamber.

3. A shock absorber assembly according to claim 1, characterized in that: A mounting piece is coaxially arranged on the outer side wall of the outer cylinder to fix the outer cylinder.

4. A shock absorber assembly according to any one of claims 1 to 3, characterized in that: The piston rod includes a round rod section and a sleeve section connected below the round rod section. An electromagnetic valve and a valve stem are arranged in the sleeve section. The valve stem includes a circular ring section arranged at the lower end of the sleeve section to seal the interior of the sleeve section and a straight cylinder section coaxially connected below the circular ring section. The electromagnetic valve is arranged above the circular ring section, and the recovery valve is arranged at the lower end of the sleeve section.

5. A shock absorber assembly according to claim 4, characterized in that: The upper ends of the outer cylinder and the inner cylinder are provided with guide pieces, and the guide pieces are provided with sliding holes extending in the up-down direction. The round rod section is adapted to the sliding hole and is slidably assembled in the sliding hole in the up-down direction.

6. A shock absorber assembly according to claim 5, characterized in that: A U-shaped piece is coaxially arranged on the outer side wall of the outer cylinder, and the distribution valve is installed on the U-shaped piece.

7. A shock absorber assembly according to any one of claims 1 to 3, characterized in that: A base is provided at the bottom of the outer cylinder, and the inner cylinder is fixedly supported on the base.

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