Steering high-pressure oil pipe assembly structure

Abstract

The utility model provides a steering high-pressure oil pipe assembly structure, and relates to the technical field of steering high-pressure oil pipes. A high-pressure oil pipe B is connected into the high-pressure oil pipe A. The high-pressure oil pipe A and the high-pressure oil pipe B form a steering high-pressure oil pipe. The end part of the high-pressure oil pipe A is in threaded connection with a nut; the high-pressure oil pipe B penetrates through the nut; the exterior of the high-pressure oil pipe A is in threaded connection with a pumping and drainage hydraulic cylinder, hydraulic oil is contained in the pumping and drainage hydraulic cylinder, a ventilation cover is installed outside the pumping and drainage hydraulic cylinder, and a bolt is connected into the ventilation cover; according to actual use requirements, the connecting portion of the high-pressure oil pipe A and the high-pressure oil pipe B can be adjusted in a sliding mode, the length of the steering high-pressure oil pipe is changed, actual use requirements are better met, the universality is high, the sealing ring A and the sealing ring B are matched with each other, and the effect of sealing the connecting portion of the high-pressure oil pipe A and the high-pressure oil pipe B is achieved; the use stability of the steering high-pressure oil pipe is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steering high-pressure oil pipes, in particular to a steering high-pressure oil pipe assembly structure. Background Art

[0002] The mechanical steering device of a car can realize the steering of the car, but when the steering shaft load is large, it is difficult to steer smoothly relying solely on the driver's physical strength as the steering energy. In order to reduce the driver's force in operating the steering wheel, people add a power steering assist device on the basis of the mechanical steering device. The power steering assist device relies on the hydraulic force generated by the hydraulic oil to drive the steering shaft to rotate, thereby reducing the driver's force in operating the steering wheel. The high-pressure oil pipe in the power steering assist device is the main component for transmitting hydraulic power.

[0003] In order to ensure its own sealing, the existing steering high-pressure oil pipe usually adopts an integrated design. In actual application, it can only be used for connection operations with the same distance. When a longer distance needs to be connected, an extended steering high-pressure oil pipe needs to be customized. The customization process takes a long time and has limitations in use. Utility Model Content

[0004] The disclosed embodiment relates to a steering high-pressure oil pipe assembly structure, which solves the problem that the existing steering high-pressure oil pipe usually adopts an integrated design to ensure its own sealing. In actual application, it can only be used for connection operations with the same distance. When a longer distance connection is required, an extended steering high-pressure oil pipe needs to be customized. The customization process takes a long time and has limitations in use.

[0005] The utility model provides a steering high-pressure oil pipe assembly structure, which specifically includes: a high-pressure oil pipe A; a high-pressure oil pipe B is connected inside the high-pressure oil pipe A, and the high-pressure oil pipe A and the high-pressure oil pipe B constitute a steering high-pressure oil pipe; a nut is threadedly connected to the end of the high-pressure oil pipe A, and the high-pressure oil pipe B runs through the nut; the high-pressure oil pipe A is threadedly connected to a pumping hydraulic cylinder outside, the pumping hydraulic cylinder contains hydraulic oil, a breathable cover is installed outside the pumping hydraulic cylinder, bolts are connected inside the breathable cover, and the breathable cover is fixedly connected to the pumping hydraulic cylinder through the bolts; a piston is installed inside the pumping hydraulic cylinder, a manual screw is connected inside the breathable cover, and the end of the manual screw is connected to the piston.

[0006] Furthermore, the end of the high-pressure oil pipe A is provided with an active cavity, the end of the high-pressure oil pipe B is slidably connected in the active cavity, and the end of the high-pressure oil pipe B is installed with a sealing ring A, which is in sliding contact with the inner wall of the active cavity.

[0007] Furthermore, a sealing ring B is installed inside the nut, and the high-pressure oil pipe B runs through the sealing ring B. The sealing ring B is in contact with the high-pressure oil pipe A. The connection part between the high-pressure oil pipe A and the high-pressure oil pipe B can be slidably adjusted according to actual use requirements to change the length of the steering high-pressure oil pipe to better meet actual use requirements.

[0008] Furthermore, the movable chamber is provided with an inlet and outlet hole outside, and the pumping and exhausting hydraulic cylinder is provided with a pumping and exhausting hole outside, and the pumping and exhausting hole is communicated with the inlet and outlet hole.

[0009] Furthermore, the piston is slidably connected in the pumping and exhausting hydraulic cylinder, and a sealing ring C is installed outside the piston, and the sealing ring C contacts the inner wall of the pumping and exhausting hydraulic cylinder.

[0010] Furthermore, the air permeable cover is provided with air holes inside, and the air holes are connected with the inside of the pumping hydraulic cylinder.

[0011] Furthermore, a screw hole is provided inside the breathable cover, and a manual screw is threadedly connected to the screw hole. The end of the manual screw is rotatably connected to the piston. When the length of the steering high-pressure oil pipe needs to be extended, the hydraulic oil inside the active chamber enters the pumping hydraulic cylinder through the inlet and outlet holes, and the hydraulic oil drives the high-pressure oil pipe B to move outward, and the length of the steering high-pressure oil pipe is extended. When the length of the steering high-pressure oil pipe needs to be shortened, the hydraulic oil inside the pumping hydraulic cylinder enters the active chamber through the pumping hole, and the hydraulic oil pushes the high-pressure oil pipe B inward for use, and the length of the steering high-pressure oil pipe is shortened.

[0012] The utility model provides a steering high-pressure oil pipe assembly structure, which has the following beneficial effects:

[0013] When the utility model is in use, the connection part between the high-pressure oil pipe A and the high-pressure oil pipe B can be slidably adjusted according to actual use needs, so as to change the length of the steering high-pressure oil pipe, which is better suitable for actual use needs and has strong universal performance. The sealing ring A and the sealing ring B cooperate with each other to achieve a sealing effect on the connection part between the high-pressure oil pipe A and the high-pressure oil pipe B, thereby ensuring the stability of the use of the steering high-pressure oil pipe.

[0014] In addition, when it is necessary to extend the length of the steering high-pressure oil pipe, turn the bolt, the bolt drives the piston to move outward, the air inside the hydraulic cylinder is discharged through the air hole, the hydraulic oil inside the active chamber enters the hydraulic cylinder through the inlet and outlet holes, the hydraulic oil drives the high-pressure oil pipe B to move outward, thereby extending the length of the steering high-pressure oil pipe; when it is necessary to shorten the length of the steering high-pressure oil pipe, the bolt drives the piston to move inward, the air enters the hydraulic cylinder through the air hole, the hydraulic oil inside the hydraulic cylinder enters the active chamber through the outlet holes, the hydraulic oil pushes the high-pressure oil pipe B inward for use, thereby shortening the length of the steering high-pressure oil pipe, and the operation is easy.

[0015] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture:

[0019] Figure 1 The overall axial side structure schematic diagram of the steering high-pressure oil pipe of the present application is shown;

[0020] Figure 2 A schematic diagram of the cross-section connection structure of the high-pressure oil pipe A and the high-pressure oil pipe B of the steering high-pressure oil pipe of the present application is shown;

[0021] Figure 3 A schematic diagram of the cross-sectional structure of the pumping and exhausting hydraulic cylinder of the steering high-pressure oil pipe of the present application is shown;

[0022] Figure 4 A schematic diagram of the axial side structure of the air permeable cover of the steering high-pressure oil pipe of the present application is shown.

[0023] Reference numerals list

[0024] 1. High-pressure oil pipe A; 101. Movable cavity; 1011. Inlet and outlet holes; 2. High-pressure oil pipe B; 201. Sealing ring A; 3. Nut; 301. Sealing ring B; 4. Pumping and exhaust hydraulic cylinder; 401. Pumping and exhaust hole; 5. Breathable cover; 501. Air hole; 502. Screw hole; 6. Bolt; 7. Piston; 701. Sealing ring C; 8. Manual screw. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1: Please refer to Figures 1 to 4 :

[0027] The utility model proposes a steering high-pressure oil pipe assembly structure, including: a high-pressure oil pipe A1; a high-pressure oil pipe B2 is connected inside the high-pressure oil pipe A1, and the high-pressure oil pipe A1 and the high-pressure oil pipe B2 constitute a steering high-pressure oil pipe; a nut 3 is threadedly connected to the end of the high-pressure oil pipe A1, and the high-pressure oil pipe B2 runs through the nut 3; a pumping hydraulic cylinder 4 is threadedly connected to the outside of the high-pressure oil pipe A1, and the pumping hydraulic cylinder 4 contains hydraulic oil, and a breathable cover 5 is installed outside the pumping hydraulic cylinder 4, and a bolt 6 is connected inside the breathable cover 5, and the breathable cover 5 is fixedly connected to the pumping hydraulic cylinder 4 through the bolt 6; a piston 7 is installed inside the pumping hydraulic cylinder 4, and a manual screw 8 is connected inside the breathable cover 5, and the end of the manual screw 8 is connected to the piston 7; a movable Cavity 101, the end of the high-pressure oil pipe B2 is slidably connected in the active cavity 101, and a sealing ring A201 is installed at the end of the high-pressure oil pipe B2, and the sealing ring A201 is in sliding contact with the inner wall of the active cavity 101; a sealing ring B301 is installed inside the nut 3, and the high-pressure oil pipe B2 runs through the sealing ring B301, and the sealing ring B301 is in contact with the high-pressure oil pipe A1. The connection part between the high-pressure oil pipe A1 and the high-pressure oil pipe B2 can be slidably adjusted according to actual use requirements to change the length of the steering high-pressure oil pipe, which is better suitable for actual use requirements and has strong universal performance. The sealing ring A201 and the sealing ring B301 cooperate with each other to seal the connection part between the high-pressure oil pipe A1 and the high-pressure oil pipe B2, thereby ensuring the stability of the steering high-pressure oil pipe.

[0028] In the embodiment of the present disclosure, an inlet and outlet hole 1011 is provided on the outside of the movable chamber 101, a pumping hole 401 is provided on the outside of the pumping and exhausting hydraulic cylinder 4, the pumping and exhausting hole 401 is communicated with the inlet and outlet hole 1011, the piston 7 is slidably connected to the pumping and exhausting hydraulic cylinder 4, a sealing ring C701 is installed on the outside of the piston 7, the sealing ring C701 is in contact with the inner wall of the pumping and exhausting hydraulic cylinder 4, an air hole 501 is provided inside the air permeable cover 5, the air hole 501 is communicated with the inside of the pumping and exhausting hydraulic cylinder 4, a screw hole 502 is provided inside the air permeable cover 5, a manual screw rod 8 is threadedly connected to the screw hole 502, and the end of the manual screw rod 8 is rotatably connected to the piston 7; adopting the above technical solution, when it is necessary to extend the steering high-pressure oil When the length of the steering high-pressure oil pipe is increased, the bolt 6 is turned, and the bolt 6 drives the piston 7 to move outward, and the air inside the hydraulic cylinder 4 is discharged through the air hole 501, and the hydraulic oil inside the active chamber 101 enters the hydraulic cylinder 4 through the inlet and outlet hole 1011, and the hydraulic oil drives the high-pressure oil pipe B2 to move outward, so that the length of the steering high-pressure oil pipe needs to be extended; when the length of the steering high-pressure oil pipe needs to be shortened, the bolt 6 drives the piston 7 to move inward, and the air enters the hydraulic cylinder 4 through the air hole 501, and the hydraulic oil inside the hydraulic cylinder 4 enters the active chamber 101 through the exhaust hole 401, and the hydraulic oil pushes the high-pressure oil pipe B2 inward for use, so that the length of the steering high-pressure oil pipe needs to be shortened, and the operation is simple.

[0029] The working principle of this embodiment is as follows: first, the length of the steering high-pressure oil pipe required for the connection part is measured, and the bolt 6 is rotated according to the measured value; when the length of the steering high-pressure oil pipe needs to be extended, the bolt 6 is rotated, and the bolt 6 drives the piston 7 to move outward, and the air inside the hydraulic cylinder 4 is discharged through the air hole 501, and the hydraulic oil inside the active chamber 101 enters the inside of the hydraulic cylinder 4 through the inlet and outlet hole 1011, and the hydraulic oil drives the high-pressure oil pipe B2 to move outward, so as to extend the length of the steering high-pressure oil pipe; when the length of the steering high-pressure oil pipe needs to be shortened, the bolt 6 drives the piston 7 to move inward, and the air enters the inside of the hydraulic cylinder 4 through the air hole 501, and the hydraulic oil inside the hydraulic cylinder 4 enters the inside of the active chamber 101 through the exhaust hole 401, and the hydraulic oil pushes the high-pressure oil pipe B2 to be used inward, so as to shorten the length of the steering high-pressure oil pipe; by changing the length of the steering high-pressure oil pipe, it is better suitable for actual use needs, has strong universal performance, and the sealing ring A201 and the sealing ring B301 cooperate with each other to play a sealing effect on the connection part between the high-pressure oil pipe A1 and the high-pressure oil pipe B2.

[0030] In this article, there are a few points to note:

[0031] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0032] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0033] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A steering high-pressure oil pipe assembly structure, comprising: A high-pressure oil pipe A (1); characterized in that the high-pressure oil pipe A (1) is internally connected to a high-pressure oil pipe B (2), and the high-pressure oil pipe A (1) and the high-pressure oil pipe B (2) constitute a steering high-pressure oil pipe; the end of the high-pressure oil pipe A (1) is threadedly connected to a nut (3), and the high-pressure oil pipe B (2) runs through the nut (3); the high-pressure oil pipe A (1) is externally threadedly connected to a pumping hydraulic cylinder (4), the pumping hydraulic cylinder (4) contains hydraulic oil, a breathable cover (5) is installed on the outside of the pumping hydraulic cylinder (4), the breathable cover (5) is internally connected to a bolt (6), and the breathable cover (5) is fixedly connected to the pumping hydraulic cylinder (4) by the bolt (6); a piston (7) is installed on the inside of the pumping hydraulic cylinder (4), a manual screw (8) is connected to the inside of the breathable cover (5), and the end of the manual screw (8) is connected to the piston (7).

2. A steering high-pressure oil pipe assembly structure according to claim 1, characterized in that: The end of the high-pressure oil pipe A (1) is provided with an active cavity (101), the end of the high-pressure oil pipe B (2) is slidably connected in the active cavity (101), and the end of the high-pressure oil pipe B (2) is installed with a sealing ring A (201), and the sealing ring A (201) is in sliding contact with the inner wall of the active cavity (101).

3. The steering high-pressure oil pipe assembly structure according to claim 1, characterized in that: A sealing ring B (301) is installed inside the nut (3), and the high-pressure oil pipe B (2) passes through the sealing ring B (301), and the sealing ring B (301) is in contact with the high-pressure oil pipe A (1).

4. The steering high-pressure oil pipe assembly structure according to claim 2, characterized in that: The movable chamber (101) is provided with an inlet and outlet hole (1011) outside, and the pumping and exhausting hydraulic cylinder (4) is provided with a pumping and exhausting hole (401) outside, and the pumping and exhausting hole (401) is communicated with the inlet and outlet hole (1011).

5. The steering high-pressure oil pipe assembly structure according to claim 1, characterized in that: The piston (7) is slidably connected to the inside of the pumping and exhausting hydraulic cylinder (4), and a sealing ring C (701) is installed outside the piston (7), and the sealing ring C (701) is in contact with the inner wall of the pumping and exhausting hydraulic cylinder (4).

6. The steering high-pressure oil pipe assembly structure according to claim 1, characterized in that: The air permeable cover (5) is provided with an air hole (501) inside, and the air hole (501) is connected with the inside of the pumping hydraulic cylinder (4).

7. The steering high-pressure oil pipe assembly structure according to claim 1, characterized in that: The air permeable cover (5) is provided with a screw hole (502) inside, a manual screw rod (8) is threadedly connected in the screw hole (502), and the end of the manual screw rod (8) is rotationally connected to the piston (7).

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