Full-active shock absorber with double intermediate cylinders and double external electromagnetic valves

Abstract

The utility model relates to the technical field of shock absorbers, in particular to a double-intermediate-cylinder double-external-electromagnetic-valve full-active shock absorber which comprises an oil storage cylinder, the axis direction of the oil storage cylinder is defined as the left-right direction, a working cylinder is coaxially arranged in the oil storage cylinder, a piston rod is assembled in the working cylinder in a sliding mode, and a piston rod is arranged in the piston rod. A compression valve is arranged at the left end of the working cylinder; the compression cylinder sleeves the working cylinder, and a compression oil duct cavity is formed between the compression cylinder and the working cylinder; the restoring cylinder sleeves the working cylinder, and a restoring oil channel cavity is formed between the restoring cylinder and the working cylinder; the compression oil pipe is arranged on the outer side wall of the oil storage cylinder and communicates with the compression oil channel cavity. The recovery oil pipe is arranged on the outer side wall of the oil storage cylinder and communicates with the recovery oil channel cavity. When the full-active shock absorber with the double middle cylinders and the double external electromagnetic valves is used, the piston rod is actively driven to move through the compression oil pipe and the recovery oil pipe, the posture of a vehicle is adjusted, and comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a full-active shock absorber with double intermediate cylinders and double external electromagnetic valves. Background Art

[0002] With the advancement of technology, automobiles are developing towards electrification and intelligence; traditional passive suspension and semi-active suspension can no longer meet the requirements of intelligent chassis for automobiles to control the body posture and comfort at the same time. In the past, shock absorbers were only force-bearing components with a fixed amount of oil; single / double solenoid valve semi-active shock absorbers could only adjust the internal oil pressure of the shock absorber, and the height adjustment of the body posture could only be achieved by air springs, resulting in limited adjustment functions of such intelligent suspension systems. Utility Model Content

[0003] The utility model provides a double-intermediate-cylinder double-external electromagnetic valve full-active shock absorber, so as to solve the technical problem that the existing shock absorber can only bear force and passively absorb shock.

[0004] In order to solve the above problems, the utility model provides a dual-intermediate-cylinder dual-external solenoid valve fully active shock absorber adopts the following technical solutions:

[0005] A double-intermediate-cylinder double-external-solenoid-valve fully-active shock absorber comprises an oil storage cylinder, wherein the axial direction of the oil storage cylinder is defined as the left-right direction, a working cylinder is coaxially arranged in the oil storage cylinder, a piston rod is slidably mounted in the working cylinder, a restoring valve is arranged at the left end of the piston rod, a compression valve is arranged at the left end of the working cylinder, and the compression valve is used to connect the inner cavity of the working cylinder with the inner cavity of the oil storage cylinder; a compression cylinder is sleeved on the working cylinder and a compression oil passage cavity is formed between the working cylinder and the working cylinder, and the compression oil passage cavity is connected with the inner cavity of the working cylinder on the left side of the restoring valve; a restoring cylinder is sleeved on the working cylinder and a recovery oil passage cavity is formed between the working cylinder and the working cylinder, and the recovery oil passage cavity is connected with the inner cavity of the working cylinder on the right side of the recovery valve; a compression oil pipe is arranged on the outer side wall of the oil storage cylinder and connected with the compression oil passage cavity; and a recovery oil pipe is arranged on the outer side wall of the oil storage cylinder and connected with the recovery oil passage cavity.

[0006] The beneficial effect is as follows: when the utility model is in use, a double-intermediate-cylinder double-external solenoid valve fully active shock absorber inputs oil into the compression oil channel cavity through the compression oil pipe to deliver oil to the inner cavity of the working cylinder on the left side of the restoring valve, thereby driving the piston rod to move to the right; inputs oil into the re-entry oil channel cavity through the re-entry oil pipe to deliver oil to the inner cavity of the working cylinder on the right side of the re-entry valve, thereby driving the piston rod to move to the left; and further, when the right end of the piston rod is not under force, the piston rod can be driven to move according to the vehicle condition, and the piston rod can be actively driven to move through the compression oil pipe and the re-entry oil pipe to adjust the vehicle posture and improve comfort. When the utility model is in use, a double-intermediate-cylinder double-external solenoid valve fully active shock absorber actively drives the piston rod to move through the compression oil pipe and the re-entry oil pipe to adjust the vehicle posture and improve comfort.

[0007] Furthermore, a compression solenoid valve and a restoration solenoid valve are also provided on the oil storage cylinder. The compression solenoid valve controls the flow rate of the compression valve, and the restoration solenoid valve controls the flow rate of the restoration valve.

[0008] Furthermore, the restoration solenoid valve is communicated with the restoration oil passage cavity, and a check valve is provided at the position where the restoration solenoid valve is communicated with the restoration oil passage cavity, so that the oil can only flow into the restoration oil passage cavity.

[0009] Beneficial effect: During the compression process, it is unidirectionally cut off to prevent the leakage of the flow path of the restoration solenoid valve from affecting the compression stroke.

[0010] Furthermore, a guide seat is provided at the right end of the oil storage cylinder, and the piston rod is slidably assembled in the guide seat.

[0011] Beneficial effect: The structure is simple and the sliding is stable.

[0012] Furthermore, a buffer oil pipe is also connected to the oil storage cylinder. One end of the buffer oil pipe is communicated with the inner cavity of the oil storage cylinder, and the other end is connected with an accumulator.

[0013] Beneficial effect: It ensures the stability of the internal oil pressure of the shock absorber. At the same time, the size of the accumulator can be adjusted according to the shock absorber specifications, and the arrangement position can be changed according to the vehicle body structure.

[0014] Furthermore, three oil pipe seats are provided on the oil storage cylinder, and oil pipe joints can be detachably connected to each oil pipe seat. The buffer oil pipe, the compression oil pipe, and the restoration oil pipe correspond to the three oil pipe joints one by one and are connected to the corresponding oil pipe joints.

[0015] Beneficial effect: The structure is simple, convenient for installation and disassembly, and easy to maintain.

[0016] Furthermore, the oil pipe joint is provided with an external thread section, and the oil pipe seat is provided with an internal thread hole. The oil pipe joint is threadedly connected to the corresponding oil pipe seat.

[0017] Beneficial effect: The structure is simple and convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present invention will become readily understandable. In the drawings, several embodiments of the present invention are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0019] Figure 1 is a schematic structural diagram of a double intermediate cylinder and double external solenoid valve fully active shock absorber of the present invention;

[0020] Figure 2A cross-sectional view of a double intermediate cylinder and double external solenoid valve fully active shock absorber of the present utility model;

[0021] Figure 3 is Figure 2 an enlarged schematic view of portion A in;

[0022] Figure 4 A cross-sectional view of the rebound solenoid valve of the present utility model.

[0023] Explanation of reference numerals in the drawings:

[0024] 1. Oil storage cylinder; 2. Working cylinder; 3. Piston rod; 4. Rebound valve; 5. Compression valve; 6. Compression cylinder; 7. Compression oil passage cavity; 8. Rebound cylinder; 9. Rebound oil passage cavity; 10. Compression oil pipe; 11. Rebound oil pipe; 12. Compression solenoid valve; 13. Rebound solenoid valve; 14. Check valve; 15. Guide seat; 16. Buffer oil pipe; 17. Accumulator; 18. Oil pipe seat; 19. Oil pipe joint; 20. Compression oil hole; 21. Rebound oil hole. Specific implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present 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 of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present utility model.

[0026] The quantity of any element in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.

[0027] Next, with reference to several representative implementation manners of the present utility model, the principles and spirits of the present utility model will be elaborated in detail.

[0028] Embodiment 1 of a double intermediate cylinder and double external solenoid valve fully active shock absorber provided by the present utility model:

[0029] As Figures 1 to 4 shown, a double intermediate cylinder and double external solenoid valve fully active shock absorber of the present utility model includes an oil storage cylinder 1, a compression cylinder 6, a rebound cylinder 8, a compression oil pipe 10, a rebound oil pipe 11, a compression solenoid valve 12, and a rebound solenoid valve 13.

[0030] Define the axial direction of the oil storage cylinder 1 as the left-right direction, and a guide seat 15 is provided at the right end of the oil storage cylinder 1.

[0031] As Figure 2 and Figure 3As shown in the figure, a working cylinder 2 is coaxially arranged inside an oil storage cylinder 1. A piston rod 3 is slidably assembled inside the working cylinder 2. The piston rod 3 is slidably assembled inside a guide seat 15. A return valve 4 is arranged at the left end of the piston rod 3. A compression valve 5 is arranged at the left end of the working cylinder 2. The compression valve 5 is used to communicate the inner cavity of the working cylinder 2 and the inner cavity of the oil storage cylinder 1.

[0032] Compression oil holes 20 and return oil holes 21 are formed in the side wall of the working cylinder 2.

[0033] A compression cylinder 6 is sleeved on the working cylinder 2, and a compression oil passage cavity 7 is formed between the compression cylinder 6 and the working cylinder 2. The compression oil passage cavity 7 is communicated with the inner cavity of the working cylinder 2 on the left side of the return valve 4 through the compression oil hole 20.

[0034] A return cylinder 8 is sleeved on the working cylinder 2, and a return oil passage cavity 9 is formed between the return cylinder 8 and the working cylinder 2. The return oil passage cavity 9 is communicated with the inner cavity of the working cylinder 2 on the right side of the return valve 4 through the return oil hole 21.

[0035] A compression oil pipe 10 is arranged on the outer side wall of the oil storage cylinder 1 and is communicated with the compression oil passage cavity 7.

[0036] A return oil pipe 11 is arranged on the outer side wall of the oil storage cylinder 1 and is communicated with the return oil passage cavity 9.

[0037] Both the compression oil pipe 10 and the return oil pipe 11 are connected with a driving structure to drive the oil flow into the corresponding chamber.

[0038] A compression solenoid valve 12 is arranged on the oil storage cylinder 1 and is used to control the flow rate of the compression valve 5. A return solenoid valve 13 is arranged on the oil storage cylinder 1 and is used to control the flow rate of the return valve 4. As Figure 4 shown, the return solenoid valve 13 is communicated with the return oil passage cavity 9, and a check valve 14 is arranged at the position where the return solenoid valve 13 is communicated with the return oil passage cavity 9, so that the oil can only flow into the return oil passage cavity 9.

[0039] To ensure the stability of the internal oil pressure of the shock absorber, a buffer oil pipe 16 is further connected to the oil storage cylinder 1. One end of the buffer oil pipe 16 is communicated with the inner cavity of the oil storage cylinder 1, and the other end is connected with an accumulator 17.

[0040] To facilitate the maintenance, replacement and installation of the buffer oil pipe 16, the compression oil pipe 10 and the return oil pipe 11, three oil pipe seats 18 are arranged on the oil storage cylinder 1. Each oil pipe seat 18 is provided with an internal thread hole. An oil pipe joint 19 is threadedly connected in the internal thread hole of each oil pipe seat 18. The oil pipe joint 19 is provided with an external thread section. The buffer oil pipe 16, the compression oil pipe 10 and the return oil pipe 11 correspond to the three oil pipe joints 19 one by one and are connected with the corresponding oil pipe joints 19.

[0041] When a double middle cylinder and double external solenoid valve fully active shock absorber of the present utility model is in use, oil is input into the compression oil passage cavity 7 through the compression oil pipe 10 to deliver oil to the inner cavity of the working cylinder 2 on the left side of the return valve 4, thereby driving the piston rod 3 to move to the right; oil is input into the return oil passage cavity 9 through the return oil pipe 11 to deliver oil to the inner cavity of the working cylinder 2 on the right side of the return valve 4, thereby driving the piston rod 3 to move to the left; furthermore, when there is no force on the right end of the piston rod 3, the piston rod 3 can also be driven to move according to the vehicle condition, and the piston rod 3 is actively driven to move through the compression oil pipe 10 and the return oil pipe 11, so as to adjust the vehicle posture and improve the comfort.

[0042] When a double middle cylinder and double external solenoid valve fully active shock absorber of the present utility model is in use, the piston rod is actively driven to move through the compression oil pipe and the return oil pipe, so as to adjust the vehicle posture and improve the comfort.

[0043] Embodiment 2 of a double middle cylinder and double external solenoid valve fully active shock absorber provided by the present utility model:

[0044] The main difference between it and Embodiment 1 is that in Embodiment 1, the return solenoid valve is communicated with the return oil passage cavity, and a check valve is provided at the position where the return solenoid valve is communicated with the return oil passage cavity, so that the oil can only flow into the return oil passage cavity.

[0045] In this embodiment, the check valve is not provided.

[0046] Embodiment 3 of a double middle cylinder and double external solenoid valve fully active shock absorber provided by the present utility model:

[0047] The main difference between it and Embodiment 1 is that in Embodiment 1, a buffer oil pipe is further connected to the oil storage cylinder, one end of the buffer oil pipe is communicated with the inner cavity of the oil storage cylinder, and the other end is connected with an accumulator.

[0048] In this embodiment, the buffer oil pipe is not provided.

[0049] Embodiment 4 of a double middle cylinder and double external solenoid valve fully active shock absorber provided by the present utility model:

[0050] The main difference between it and Embodiment 1 is that in Embodiment 1, the oil pipe joint is provided with an external thread section, the oil pipe seat is provided with an internal thread hole, and the oil pipe joint is threadedly connected to the corresponding oil pipe seat.

[0051] In this embodiment, the oil pipe joint and the oil pipe seat are connected by plugging and matching with a sealing ring.

[0052] Based on the above description of this specification, those skilled in the art can also understand the following terms used, such as "upper", "lower", "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner", "outer", etc. Terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in the specific orientation. Therefore, the above terms of orientation or positional relationship cannot be understood or interpreted as a limitation to the solution of the present invention.

[0053] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed methods and technical contents within the scope of the technical solution of the present invention to form equivalent embodiments of equivalent changes. However, as long as the content does not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

[0054] In addition, in the description of this specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise specifically and clearly defined.

Claims

1. A fully active shock absorber with double intermediate cylinders and double external solenoid valves, characterized in that: include: The oil storage cylinder is defined as having an axial direction of left and right, a working cylinder is coaxially arranged in the oil storage cylinder, a piston rod is slidably mounted in the working cylinder, a restoring valve is arranged at the left end of the piston rod, and a compression valve is arranged at the left end of the working cylinder, and the compression valve is used to connect the inner cavity of the working cylinder with the inner cavity of the oil storage cylinder; The compression cylinder is sleeved on the working cylinder and forms a compression oil passage cavity with the working cylinder, and the compression oil passage cavity is communicated with the inner cavity of the working cylinder on the left side of the restoring valve; The recovery cylinder is sleeved on the working cylinder and forms a recovery oil gallery cavity with the working cylinder, and the recovery oil gallery cavity is communicated with the inner cavity of the working cylinder on the right side of the recovery valve; A compression oil pipe is arranged on the outer wall of the oil storage cylinder and is connected with the compression oil channel cavity; The recovery oil pipe is arranged on the outer side wall of the oil storage cylinder and is communicated with the recovery oil channel cavity.

2. A dual-intermediate-cylinder dual-external solenoid valve fully active shock absorber according to claim 1, characterized in that: A compression solenoid valve and a recovery solenoid valve are also provided on the oil storage cylinder. The compression solenoid valve controls the flow of the compression valve, and the recovery solenoid valve controls the flow of the recovery valve.

3. A dual-intermediate-cylinder dual-external solenoid valve fully active shock absorber according to claim 2, characterized in that: The restoring solenoid valve is communicated with the restoring oil gallery cavity, and a one-way valve is arranged at the communication position between the restoring solenoid valve and the restoring oil gallery cavity, so that the oil can only flow to the restoring oil gallery cavity.

4. A dual-intermediate-cylinder dual-external solenoid valve fully active shock absorber according to any one of claims 1 to 3, characterized in that: A guide seat is arranged at the right end of the oil storage cylinder, and the piston rod is slidably assembled in the guide seat.

5. A dual-intermediate-cylinder dual-external solenoid valve fully active shock absorber according to any one of claims 1 to 3, characterized in that: The oil storage cylinder is also connected with a buffer oil pipe, one end of which is communicated with the inner cavity of the oil storage cylinder, and the other end of which is connected with an accumulator.

6. A dual-intermediate-cylinder dual-external solenoid valve fully active shock absorber according to claim 5, characterized in that: The oil storage cylinder is provided with three oil pipe seats, each of which is detachably connected with an oil pipe joint. The buffer oil pipe, compression oil pipe and recovery oil pipe correspond to the three oil pipe joints one by one and are connected with the corresponding oil pipe joints.

7. A dual-intermediate-cylinder dual-external solenoid valve fully active shock absorber according to claim 6, characterized in that: The oil pipe joint is provided with an external thread section, the oil pipe seat is provided with an internal thread hole, and the oil pipe joint is threadedly connected to the corresponding oil pipe seat.

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