Flushing device for hydraulic oil pipeline

By using a support and positioning device in conjunction with a drive motor and lead screw, the problem of the hydraulic oil pipeline cleaning device being difficult to access is solved, achieving efficient cleaning and positioning inside the oil pipeline and ensuring the cleaning effect.

CN121776200APending Publication Date: 2026-04-03HARBIN GUANGHAN GAS TURBINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-02
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing hydraulic oil line cleaning devices have difficulty effectively entering the inside of hoses, resulting in inconvenience in cleaning and difficulty in positioning.

Method used

A flushing device including a support device, a positioning device, and a displacement device was designed. The device uses a hydraulic cylinder to press the oil pipe for linear positioning, and combines a drive motor and a lead screw to move the sponge head and nozzle to achieve cleaning and flushing of the inner wall of the oil pipe.

Benefits of technology

It achieves straight positioning and efficient internal cleaning of hydraulic oil pipes, ensuring that the cleaning device can accurately enter and thoroughly clean the inside of the oil pipes.

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Abstract

The flushing device for the hydraulic oil pipeline comprises a supporting device, a positioning device is fixedly installed on the right side of the supporting device, a displacement device is connected into the supporting device in a threaded and sleeved mode, the displacement device comprises a sponge head, a connecting rod and an L-shaped support, and the sponge head is fixedly installed at the rear end of the connecting rod; the connecting rod is fixedly installed at the front end of the L-shaped support, the supporting device comprises an auxiliary support, a driving motor, a lead screw, a guide rod, a supporting base, a hydraulic oil pipe and a first support, the driving motor is fixedly installed at the front end of the supporting base, and the lead screw is fixedly installed in the center of the rear end of the driving motor; the guide rods are symmetrically and fixedly installed in the supporting base and located above the lead screw, and the first support is fixedly installed at the top end of the supporting base. Through the arrangement of the displacement device, the supporting device and the positioning device, the purpose of quickly positioning and cleaning the hydraulic pipeline is achieved.
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Description

Technical Field

[0001] This invention belongs to the field of hydraulic pipeline cleaning technology, specifically relating to a flushing device for hydraulic oil pipelines. Background Technology

[0002] Hydraulic pipelines refer to the general term for the piping systems used in hydraulic systems to connect components such as hydraulic pumps, hydraulic cylinders, hydraulic motors, and hydraulic valves, and to guide the flow of hydraulic oil. They must not only withstand the system's working pressure but also ensure reliable sealing, low pressure loss, and resistance to vibration and corrosion.

[0003] For example, a flushing device for hydraulic oil pipelines, as disclosed in Chinese Patent Publication No. CN218797892U, belongs to the field of pipeline flushing and includes: a water tank, a pump, a motor, a water pipeline, and a return water pipeline; a filter structure is provided on the side of the water tank, and one end of the return water pipeline is connected to the filter structure; the filter structure includes a solid filter component and an oil filter component, with the solid filter component located above the oil filter component.

[0004] When cleaning existing hydraulic lines, because hydraulic lines are flexible hoses, the cleaning device cannot enter the line straight, making it difficult to locate the hydraulic line and clean its interior. Summary of the Invention

[0005] The purpose of this invention is to provide a flushing device for hydraulic oil pipelines.

[0006] A flushing device for hydraulic oil pipelines includes a support device, a positioning device fixedly installed on the right side of the support device; a displacement device is threadedly connected inside the support device; the displacement device includes a sponge head, a connecting rod and an L-shaped bracket; the sponge head is fixedly installed at the rear end of the connecting rod; the connecting rod is fixedly installed at the front end of the L-shaped bracket.

[0007] Furthermore, the support device includes an auxiliary bracket, a drive motor, a lead screw, a guide rod, a support base, a hydraulic oil pipe, and a first support; the drive motor is fixedly installed at the front end of the support base; the lead screw is fixedly installed at the center of the rear end of the drive motor; the guide rods are symmetrically fixedly installed inside the support base, and the guide rods are located above the lead screw; the first support is fixedly installed at the top end of the support base; the hydraulic oil pipe is placed at the top end of the first support; and the auxiliary bracket is fixedly installed at the top front end of the support base.

[0008] Furthermore, the positioning device includes an extension frame, a connecting arm, a screw, a nozzle, a second support, and a hydraulic cylinder; the hydraulic cylinder is fixedly installed on the left side of the extension frame; the second support is fixedly installed at the bottom end of the hydraulic cylinder; the connecting arm is fixedly installed at the top front end of the second support; the screw is threaded into the front end of the connecting arm; and the nozzle is rotatably installed at the bottom end of the screw.

[0009] Furthermore, the extension frame is fixedly installed on the right side of the support base; the L-shaped bracket is slidably sleeved on the outer ring of the guide rod.

[0010] Furthermore, a sliding hole is provided at the top front end of the support base.

[0011] Furthermore, both the top center of the first support and the bottom center of the second support are provided with arc grooves.

[0012] Furthermore, the L-shaped bracket has a threaded hole at its bottom interior and symmetrical slots at its top interior.

[0013] Furthermore, a limiting rod is symmetrically fixedly installed at the top of the nozzle, and the limiting rod slides through the inside of the top of the connecting arm.

[0014] The beneficial effects of this invention are as follows: When the hydraulic cylinder is started, it can squeeze the second support to press the hydraulic oil pipe to the top of the first support, so that the hydraulic oil pipe can be pressed straight. At the same time, when the drive motor is started, the lead screw can drive the L-shaped bracket and the sponge head to move, so that the sponge head can enter the interior of the hydraulic oil pipe. After the interior of the hydraulic oil pipe is cleaned, the nozzle is moved downward by turning the screw to align with the hydraulic oil pipe, so that water can rinse the interior of the hydraulic oil pipe, thus completing the cleaning and rinsing work of the interior of the hydraulic oil pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the displacement device structure of the present invention; Figure 3 This is a schematic diagram of the support device structure of the present invention; Figure 4 This is a schematic diagram of the positioning device of the present invention.

[0016] In the diagram: 1. Displacement device, 2. Support device, 3. Positioning device, 4. Sponge head, 5. Connecting rod, 6. L-shaped bracket, 7. Auxiliary bracket, 8. Drive motor, 9. Lead screw, 10. Guide rod, 11. Support base, 12. Hydraulic oil pipe, 13. First support, 14. Extension frame, 15. Connecting arm, 16. Screw, 17. Nozzle, 18. Second support, 19. Hydraulic cylinder. Detailed Implementation

[0017] The present invention will now be further described with reference to the accompanying drawings.

[0018] like Figures 1-4 A flushing device for hydraulic oil pipelines includes a support device 2, a positioning device 3 fixedly installed on the right side of the support device 2, and a displacement device 1 threadedly connected inside the support device 2. The displacement device 1 includes a sponge head 4, a connecting rod 5 and an L-shaped bracket 6. The sponge head 4 is fixedly installed at the rear end of the connecting rod 5, and the connecting rod 5 is fixedly installed at the front end of the L-shaped bracket 6.

[0019] The support device 2 includes an auxiliary bracket 7, a drive motor 8, a lead screw 9, a guide rod 10, a support base 11, a hydraulic oil pipe 12, and a first support 13. The drive motor 8 is fixedly installed at the front end of the support base 11, the lead screw 9 is fixedly installed at the rear center of the drive motor 8, the guide rod 10 is symmetrically fixedly installed inside the support base 11 and is located above the lead screw 9, the first support 13 is fixedly installed at the top of the support base 11, the hydraulic oil pipe 12 is placed at the top of the first support 13, and the auxiliary bracket 7 is fixedly installed at the top front end of the support base 11. The connecting rod 5 slides inside the auxiliary bracket 7, which can support the stable sliding of the sponge head 4.

[0020] The positioning device 3 includes an extension frame 14, a connecting arm 15, a screw 16, a nozzle 17, a second support 18, and a hydraulic cylinder 19. The hydraulic cylinder 19 is fixedly installed on the left side of the extension frame 14, the second support 18 is fixedly installed on the bottom end of the hydraulic cylinder 19, the connecting arm 15 is fixedly installed on the top front end of the second support 18, the screw 16 is threaded into the front end of the connecting arm 15, and the nozzle 17 is rotatably installed on the bottom end of the screw 16. A flexible hose is installed on the top end of the nozzle 17 to allow the nozzle 17 to move up and down.

[0021] The extension frame 14 is fixedly installed on the right side of the support base 11, and the L-shaped bracket 6 is slidably sleeved on the outer ring of the guide rod 10, which can ensure that the L-shaped bracket 6 moves in a straight line.

[0022] A sliding hole is provided at the top front end of the support base 11, allowing the L-shaped bracket 6 to move towards the front end inside the support base 11.

[0023] Both the top center of the first support 13 and the bottom center of the second support 18 are provided with arc grooves. When the second support 18 is in contact with the first support 13, the hydraulic oil pipe 12, which is in a bent state, can be straightened.

[0024] The L-shaped bracket 6 has a threaded hole at its bottom and symmetrical slots at its top to ensure that it moves in a straight line.

[0025] A limiting rod is symmetrically fixedly installed at the top of the nozzle 17, and the limiting rod slides through the inside of the top of the connecting arm 15. When the screw 16 rotates in the forward and reverse directions, the limiting rod restricts the nozzle 17 to move up and down in a straight line.

[0026] Working principle: In use, first place the hydraulic oil pipe 12 in the arc groove inside the top of the first support 13, then turn on the hydraulic cylinder 19. The piston rod inside the hydraulic cylinder 19 is connected to the second support 18, so that the second support 18 can be moved downward by the piston rod inside the hydraulic cylinder 19 until the second support 18 is in contact with the first support 13, which can press the hydraulic oil pipe 12 straight. Then, open the water valve to the outside through the nozzle 17, so that water can be discharged into the hydraulic oil pipe 12 through the nozzle 17. At the same time, when the second support 18 moves to be in contact with the first support 13, the nozzle 17 can be horizontally aligned with the center of the hydraulic oil pipe 12, so that the nozzle 17 can accurately spray water. Inside the hydraulic oil pipe 12, after the inside of the hydraulic oil pipe 12 is moistened, the screw 16 is turned, which drives the nozzle 17 to move upward. The limiting rod at the top of the nozzle 17 slides into the connecting arm 15, ensuring that the nozzle 17 moves up and down in a straight line. This allows the nozzle 17 to be misaligned with the hydraulic oil pipe 12, preventing interference between the sponge head 4 and the nozzle 17. Then, external cleaning agent is poured onto the surface of the sponge head 4, and the drive motor 8 is turned on, driving the lead screw 9 to rotate. The L-shaped bracket 6 is threaded onto the outer ring of the lead screw 9, so that when the lead screw 9 rotates, it can drive the L-shaped bracket 6 and the sponge head 4 to move. When the sponge head 4 enters the hydraulic oil pipe 12, the... The outer surface of the sponge head 4 is in contact with the inner surface of the hydraulic oil pipe 12, allowing the sponge head 4 to clean the inner wall of the hydraulic oil pipe 12. This continues until the L-shaped bracket 6 moves to its rearward limit on the screw 9, at which point the sponge head 4 can move to its rearward limit inside the hydraulic oil pipe 12, thus cleaning the inside of the hydraulic oil pipe 12. Then, the drive motor 8 can be turned on again, causing the screw 9 to rotate in the opposite direction, allowing the L-shaped bracket 6 to move the sponge head 4 to its frontward reset position. Once the sponge head 4 is reset, it can be removed from inside the hydraulic oil pipe 12. At this point, the screw 16 can be turned again, moving the nozzle 17 downwards until it is horizontally aligned with the hydraulic oil pipe 12. Finally, the water valve is opened, allowing the nozzle... 17. Water can be sprayed into the interior of the hydraulic oil pipe 12 to clean it. At the same time, the L-shaped bracket 6 slides on the outer ring of the guide rod 10 during displacement, which supports the L-shaped bracket 6 to move in a straight line, improving the docking accuracy between the sponge head 4 and the hydraulic oil pipe 12. Furthermore, the sliding hole at the front end of the support base 11 allows the L-shaped bracket 6 to slide inside the support base 11. After the interior of the hydraulic oil pipe 12 is cleaned, the hydraulic cylinder 19 can be opened to move the second support 18 upward, releasing the hydraulic oil pipe 12. At this time, the user can remove the hydraulic oil pipe 12, completing the cleaning work inside the hydraulic oil pipe 12.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A flushing device for hydraulic oil pipelines, comprising a support device (2), wherein a positioning device (3) is fixedly installed on the right side of the support device (2); a displacement device (1) is connected internally to the support device (2) via a threaded sleeve; characterized in that, The displacement device (1) includes a sponge head (4), a connecting rod (5) and an L-shaped bracket (6); the sponge head (4) is fixedly installed at the rear end of the connecting rod (5); the connecting rod (5) is fixedly installed at the front end of the L-shaped bracket (6).

2. The flushing device for hydraulic oil pipelines according to claim 1, characterized in that, The support device (2) includes an auxiliary bracket (7), a drive motor (8), a lead screw (9), a guide rod (10), a support base (11), a hydraulic oil pipe (12), and a first support (13); the drive motor (8) is fixedly installed at the front end of the support base (11); the lead screw (9) is fixedly installed at the center of the rear end of the drive motor (8); the guide rod (10) is symmetrically fixedly installed inside the support base (11), and the guide rod (10) is located above the lead screw (9); the first support (13) is fixedly installed at the top end of the support base (11); the hydraulic oil pipe (12) is placed at the top end of the first support (13); and the auxiliary bracket (7) is fixedly installed at the top front end of the support base (11).

3. A flushing device for hydraulic oil pipelines according to claim 1, characterized in that, The positioning device (3) includes an extension frame (14), a connecting arm (15), a screw (16), a nozzle (17), a second support (18), and a hydraulic cylinder (19); the hydraulic cylinder (19) is fixedly installed on the left side of the extension frame (14); the second support (18) is fixedly installed at the bottom end of the hydraulic cylinder (19); the connecting arm (15) is fixedly installed at the top front end of the second support (18); the screw (16) is threaded into the front end of the connecting arm (15); and the nozzle (17) is rotatably installed at the bottom end of the screw (16).

4. A flushing device for hydraulic oil pipelines according to claim 3, characterized in that, The extension frame (14) is fixedly installed on the right side of the support base (11); the L-shaped bracket (6) is slidably sleeved on the outer ring of the guide rod (10).

5. A flushing device for hydraulic oil pipelines according to claim 4, characterized in that, The front end of the support base (11) has a sliding hole.

6. A flushing device for hydraulic oil pipelines according to claim 2, characterized in that, Both the top center of the first support (13) and the bottom center of the second support (18) are provided with arc grooves.

7. A flushing device for hydraulic oil pipelines according to claim 1, characterized in that, The L-shaped bracket (6) has a threaded hole at its bottom and symmetrical slots at its top.

8. A flushing device for hydraulic oil pipelines according to claim 3, characterized in that: A limiting rod is symmetrically fixedly installed at the top of the nozzle (17), and the limiting rod slides through the inside of the top of the connecting arm (15).

Citation Information

Patent Citations

  • A flushing device for hydraulic oil lines

    CN218797892U