Turbine oil precision oil filtering machine oil pipeline reverse switching device

Abstract

The invention discloses a turbine oil precision oil filtering engine oil pipeline reverse switching device, and relates to the technical field of oil pipeline switching. The oil filter comprises an oil filter body, two connecting pipes, two external pipes and a switching valve, one end of each connecting pipe is fixedly connected with one side of the oil filter body, and the switching valve is mounted at the top end of the oil filter body. When pressure generated by flowing of liquid in the pipeline is large, the blocking cloth is impacted by the liquid to sink inwards, so that the top plate moves towards the interior of the hollow block, and when a guide block makes contact with the warping plate, the guide block drives the warping plate to move towards the inner wall of the connecting pipe, so that a clamping block is separated from a protruding block, and limitation to the moving ring is relieved; the moving ring slides on the sliding rod in the impact process of the impact force, and is matched with the buffer spring, and the increased distance between a first spoiler and a second spoiler in the shifting mechanism, so that the spoiler range is enlarged, the damping effect is improved, and vibration borne by a pipeline and a filter element in the oil filter is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of oil pipeline switching, and in particular to an oil pipeline reverse switching device for a turbine oil precision filter. Background Art

[0002] Turbine oil, also known as steam turbine oil, is a lubricating oil specifically used for steam turbines and related equipment. The precision oil filter oil line reverse switching device is mainly used to purify the lubricating oil in the bearing oil tank. It can simplify the operating procedures of the turbine oil system, improve the quality of the purified oil, shorten the unit maintenance time, and maintain the stable operation of the guide bearing and thrust bearing.

[0003] In the existing turbine oil precision oil filter oil pipeline reverse switching device, at the moment the precision oil filter switches, the hydraulic pressure generated by the liquid flow in the pipeline increases. Due to the lack of a mechanism to protect the pipeline and the filter element in the precision oil filter, the increased hydraulic pressure impacts the pipeline, causing the pipeline to vibrate. At the same time, the liquid directly rushes into the oil filter, which can easily damage the filter element. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a turbine oil precision oil filter oil pipeline reverse switching device to solve the problem of lack of a mechanism to protect the pipeline and the filter element in the precision oil filter, which increases the impact of hydraulic pressure in the pipeline and causes pipeline vibration.

[0005] To achieve the above-mentioned object, the present invention specifically adopts the following technical solutions: a device for switching the oil pipeline of a precision oil filter for turbine oil, comprising an oil filter body, a connecting pipe, an external pipe, and a switching valve, wherein two connecting pipes and two external pipes are provided, one end of each connecting pipe is fixedly connected to one side of the oil filter body, the switching valve is installed at the top of the oil filter body, one end of each external pipe is connected to the two connecting pipes via connecting flanges, and a placement groove is provided on the opposite end of each connecting pipe and external pipe; It also includes a guide mechanism, a pushing mechanism, a toggle mechanism, a buffer mechanism and an extension mechanism. The guide mechanism, the toggle mechanism and the extension mechanism are placed in sequence inside the connecting tube from front to back. Two groups of first spoilers are provided inside the guide mechanism and the toggle mechanism. A group of second spoilers is rotatably provided inside the extension mechanism. The pushing mechanism is provided at the front end of the guide mechanism. Two support rods are provided between the guide mechanism and the pushing mechanism. Two sliding rods are provided on the rear side of the toggle mechanism, and the two sliding rods both pass through the rear side of the extension mechanism. The extension mechanism is slidably provided on the two sliding rods. The buffer mechanism is provided on the outside of the sliding rod. The toggle mechanism and the extension mechanism are detachably connected.

[0006] Preferably, a group of guide holes are respectively provided on the front sides of the guide mechanism, the toggle mechanism and the extension mechanism, and the guide holes in each group are respectively provided in a ring array on the front sides of the guide mechanism, the toggle mechanism and the extension mechanism.

[0007] Preferably, two limit blocks are fixedly connected to the inner wall of the placement groove in the external tube, and one side of the two limit blocks is in contact with the front side of the guide mechanism.

[0008] Preferably, the guiding mechanism includes a placement ring, a movable hole, a connecting block, a movable hole, a guide block and a special-shaped block. The placement ring is placed inside the placement groove. Two movable holes are opened on one side of the placement ring. The two movable holes are equidistantly arranged in a circular array. The two movable holes are fixedly connected to the inside of the two movable holes. A guide block is arranged on the outside of the connecting block. A movable hole is opened on one side of the guide block, and the guide block is slidably connected to the connecting block through the movable hole. A special-shaped block is fixedly connected to one end of the guide block.

[0009] Preferably, the pushing mechanism includes a hollow block, a fixed rod, a slider, a tension spring, a rotating seat, a rotating plate and a top plate, one end of the hollow block is fixedly connected to one end of the special-shaped block, a fixed rod is fixedly connected to the inside of the hollow block, two sliders are slidably connected to the outside of the fixed rod, a tension spring is fixedly connected between the two sliders, and the tension spring is located on the outside of the fixed rod, one side of the two sliders is fixedly connected to the rotating seat, a rotating plate is rotatably connected to the inside of the rotating seat, one end of the two rotating plates is rotatably connected to the same top plate, one end of the hollow block is fixedly connected to the barrier cloth, and one end of the top plate is in contact with the inner side of the barrier cloth.

[0010] Preferably, the toggle mechanism includes a fixing ring, a mounting hole, a limiting rod, a rocker and a clamping block. The fixing ring is placed inside the placement groove. Two mounting holes are opened on one side of the fixing ring. The two mounting holes are equidistantly arranged in a circular array. The inside of the two mounting holes is fixedly connected with a limiting rod. The limiting rod is rotatably connected to the rocker, and one end of the rocker is fixedly connected to the clamping block.

[0011] Preferably, the buffer mechanism includes a limiting block and a buffer spring, and there are two limiting blocks. One end of the two limiting blocks is fixedly connected to one end of the two sliding rods respectively. A buffer spring is provided on the outside of the sliding rod, and one end of the buffer spring is fixedly connected to one side of the limiting block, and the other end is fixedly connected to the extension mechanism.

[0012] Preferably, one end of the two limiting blocks contacts one side of the inner wall of the placement groove in the connecting pipe.

[0013] Preferably, the extension mechanism includes a movable ring, a connecting hole and a protrusion. The movable ring is placed inside the placement groove. Two connecting holes are opened on one side of the movable ring. The two connecting holes are arranged equidistantly in a circular array. One side of the movable ring is fixedly connected with a protrusion near the outer side of the two connecting holes.

[0014] Preferably, both of the rocker plates pass through the extension mechanism.

[0015] The beneficial effects of the present invention are as follows: When the pressure generated by the flow of liquid in the pipeline of the present invention is relatively large, the barrier cloth is sunken inwardly by the impact of the liquid, so that the top plate moves toward the inside of the hollow block, and then the tension spring is stretched. At this time, the guide block approaches the seesaw. When the guide block contacts the seesaw, due to the action of the impact force, the guide block drives the seesaw to move toward the inner wall of the connecting pipe, so that the clamping block is separated from the protrusion, and the restriction on the moving ring is released, so that the moving ring slides on the slide rod during the impact of the impact force, and cooperates with the buffer spring and the increased distance between the first spoiler and the second spoiler in the toggle mechanism to expand the spoiler range, improve the shock absorption effect, and reduce the vibration of the pipeline and the filter element inside the oil filter.

[0016] When the pressure generated by the flow of liquid in the pipeline is relatively small, the present invention facilitates the use of a tension spring to drive the top plate to lift and support the barrier cloth, and cooperates with the first spoiler and guide hole on the placement ring to further disturb the liquid, so that the liquid can flow stably in the pipeline and the oil filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 is a cross-sectional view of the connecting pipe of the present invention; Figure 3 It is a front view of the connecting pipe of the present invention; Figure 4 It is a schematic diagram of the connecting pipe of the present invention; Figure 5 is a schematic diagram of a first spoiler of the present invention; Figure 6 This invention Figure 5 Schematic diagram of area A in the middle; Figure 7 is a cross-sectional view of a hollow block of the present invention; Figure 8 Schematic diagram of the buffer spring of the present invention; Figure 9 This invention Figure 8 Schematic diagram of area B in the middle; Figure 10 Schematic diagram of the seesaw of the present invention.

[0018] Reference numerals: 1, oil filter body; 2, connecting pipe; 3, external pipe; 4, placement tank; 5. Guide mechanism; 501. Placement ring; 502. Movable hole; 503. Connecting block; 504. Movable hole; 505. Guide block; 506. Special-shaped block; 6. Pushing mechanism; 601. Hollow block; 602. Fixed rod; 603. Slider; 604. Tension spring; 605. Rotating seat; 606. Rotating plate; 607. Top plate; 608. Barrier cloth; 7. Support rod; 8. Toggle mechanism; 801. Fixing ring; 802. Mounting hole; 803. Limiting rod; 804. Rocker; 805. Clamping block; 9. Buffer mechanism; 901. Limiting block; 902. Buffer spring; 10. Extension mechanism; 1001. Moving ring; 1002. Connecting hole; 1003. Bump 11. First spoiler; 12. Second spoiler; 13. Switching valve; 14. Limit block; 15. Guide hole; 16. Sliding rod. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation. The structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0020] Figures 1-10 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1 -Attached Figure 10 The present invention is further described.

[0021] The oil pipeline reversing switching device for a turbine oil precision oil filter includes an oil filter body 1, a connecting pipe 2, an external pipe 3, and a switching valve 13. Two connecting pipes 2 and two external pipes 3 are provided. One end of each connecting pipe 2 is fixedly connected to one side of the oil filter body 1. The switching valve 13 is installed at the top of the oil filter body 1. One end of each external pipe 3 is connected to the two connecting pipes 2 via connecting flanges. A placement groove 4 is provided on the opposite end of each connecting pipe 2 and external pipe 3. It also includes a guide mechanism 5, a pushing mechanism 6, a toggle mechanism 8, a buffer mechanism 9 and an extension mechanism 10. The guide mechanism 5, the toggle mechanism 8 and the extension mechanism 10 are placed in the interior of the connecting tube 2 from front to back. Two groups of first spoilers 11 are provided inside the guide mechanism 5 and the toggle mechanism 8. A group of second spoilers 12 is rotatably provided inside the extension mechanism 10. The pushing mechanism 6 is provided at the front end of the guide mechanism 5. Two support rods 7 are provided between the guide mechanism 5 and the pushing mechanism 6. Two slide rods 16 are provided on the rear side of the toggle mechanism 8, and the two slide rods 16 both pass through the rear side of the extension mechanism 10. The extension mechanism 10 is slidably provided on the two slide rods 16. The buffer mechanism 9 is provided on the outside of the slide rod 16. The toggle mechanism 8 and the extension mechanism 10 are detachable. Unloading clamping setting; specifically, when the pressure generated by the flow of liquid in the pipeline is large, the pushing mechanism 6 is used to convert the impact force generated by the flow of liquid into thrust, and the thrust generated drives the guide mechanism 5 to move, and due to the movement of the guide mechanism 5, the guide mechanism 5 drives the toggle mechanism 8 to rotate. At this time, with the left and right of the buffer mechanism 9, the extension mechanism 10 is close to the guide mechanism 5, and a gap appears at the connection between the toggle mechanism 8 and the extension mechanism 10, so that the toggle mechanism 8 releases the restriction on the extension mechanism 10, and again cooperates with the buffer mechanism 9 and the impact force, so that the distance between the extension mechanism 10 and the toggle mechanism 8 is increased. Due to the distance between the first spoiler 11 and the rotatable second spoiler 12, the spoiler range is expanded and the seismic effect is improved.

[0022] A group of guide holes 15 is respectively provided on the front side of the guide mechanism 5, the toggle mechanism 8 and the extension mechanism 10, and the guide holes 15 in each group are respectively arranged in a ring array on the front side of the guide mechanism 5, the toggle mechanism 8 and the extension mechanism 10; specifically, when the pressure generated by the flow of liquid in the pipeline is large, the pressure on the guide mechanism 5, the toggle mechanism 8 and the extension mechanism 10 is easily shared through the action of multiple groups of guide holes 15.

[0023] Two limit blocks 14 are fixedly connected to the inner wall of the placement groove 4 in the external tube 3, and one side of the two limit blocks 14 is in contact with the front side of the guide mechanism 5; specifically, through the two limit blocks 14, when the connecting pipe 2 and the external tube 3 are connected through the connecting flange, at this time, one side of the two limit blocks 14 on the inner wall of the placement groove 4 in the external tube 3 is in contact with the front side of the guide mechanism 5, thereby limiting the guide mechanism 5.

[0024] The guiding mechanism 5 includes a placing ring 501, a movable hole 502, a connecting block 503, a movable hole 504, a guide block 505 and a special-shaped block 506. The placing ring 501 is placed inside the placing groove 4. Two movable holes 502 are opened on one side of the placing ring 501. The two movable holes 502 are equidistantly arranged in a circular array. The two movable holes 502 are fixedly connected with the connecting block 503. A guide block 505 is arranged on the outside of the connecting block 503. A movable hole 504 is opened on one side of the guide block 505, and the guide block 505 is slidingly connected to the connecting block 503 through the movable hole 504. One end of the guide block 505 is fixedly connected to the special-shaped block 506; specifically, one side of the two limit blocks 14 is in contact with the front side of the placing ring 501, and one end of the guide block 505 is set on an arc-shaped surface recessed to the outer wall of the placing ring 501.

[0025] The pushing mechanism 6 includes a hollow block 601, a fixed rod 602, a slider 603, a tension spring 604, a rotating seat 605, a rotating plate 606 and a top plate 607. One end of the hollow block 601 is fixedly connected to one end of the special-shaped block 506. The interior of the hollow block 601 is fixedly connected to the fixed rod 602. The outside of the fixed rod 602 is slidably connected to two sliders 603. A tension spring 604 is fixedly connected between the two sliders 603, and the tension spring 604 is located outside the fixed rod 602. One side of the two sliders 603 is fixedly connected to the rotating seat 605. The rotating plate 606 is rotatably connected inside the rotating seat 605. One end of the two rotating plates 606 is rotatably connected to the same top plate 607, one end of the hollow block 601 is fixedly connected to the barrier cloth 608, and one end of the top plate 607 is in contact with the inner side of the barrier cloth 608; specifically, when the pressure generated by the flow of liquid in the pipeline is small, due to the force of the tension spring 604, the two sliders 603 are driven to approach each other, thereby driving the top plate 607 to lift and support the barrier cloth 608, and cooperating with the first spoiler 11 and the guide hole 15 on the placement ring 501, it is convenient to further disturb the flow of the liquid, so that the liquid can flow stably in the pipeline and the oil filter body 1.

[0026] The toggle mechanism 8 includes a fixing ring 801, a mounting hole 802, a limiting rod 803, a rocker 804 and a clamping block 805. The fixing ring 801 is placed inside the placement slot 4. Two mounting holes 802 are provided on one side of the fixing ring 801. The two mounting holes 802 are equidistantly arranged in a circular array. The limiting rod 803 is fixedly connected to the inside of the two mounting holes 802. The limiting rod 803 is rotatably connected to the rocker 804. One end of the rocker 804 is fixedly connected to the clamping block 805; specifically, one end of the clamping block 805 is set to be hook-shaped, and the corners of the hook are rounded.

[0027] The buffer mechanism 9 includes a limiting block 901 and a buffer spring 902. Two limiting blocks 901 are provided. One end of the two limiting blocks 901 is fixedly connected to one end of the two sliding rods 16 respectively. A buffer spring 902 is provided on the outside of the sliding rod 16. One end of the buffer spring 902 is fixedly connected to one side of the limiting block 901, and the other end is fixedly connected to the extension mechanism 10; specifically, the impact force of the liquid in the pipeline can be buffered by the buffer spring 902 and the first spoiler 11.

[0028] One end of the two limiting blocks 901 contacts one side of the inner wall of the placement groove 4 in the connecting pipe 2; specifically, it is convenient to connect and fix the connecting pipe 2 and the external pipe 3 through the connecting flange. At this time, one side of the two limiting blocks 14 on the inner wall of the placement groove 4 in the external pipe 3 contacts one side of the placement ring 501, thereby fixing the position of the placement ring 501.

[0029] The extension mechanism 10 includes a movable ring 1001, a connecting hole 1002 and a protrusion 1003. The movable ring 1001 is placed inside the placement groove 4. Two connecting holes 1002 are provided on one side of the movable ring 1001. The two connecting holes 1002 are equidistantly arranged in a circular array. One side of the movable ring 1001 is fixedly connected to the outside of the two connecting holes 1002; specifically, one end of the buffer spring 902 is fixedly connected to one side of the limiting block 901, and the other end is fixedly connected to one side of the movable ring 1001. One end of the protrusion 1003 is set to a rounded corner. Several second spoilers 12 in a group are rotatably connected to the inner wall of the movable ring 1001. When one end of the clamping block 805 contacts the protrusion 1003, the buffer spring 902 can drive the movable ring 1001 to move slightly to the left and right, thereby facilitating the slight movement of the clamping block 805, so that the clamping block 805 is separated from the protrusion 1003.

[0030] The two seesaws 804 both pass through the extension mechanism 10 ; specifically, the outer sides of the two seesaws 804 both pass through the connection hole 1002 , and a distance is left between the outer sides of the seesaws 804 and the inner wall of the connection hole 1002 .

[0031] In summary: when the present invention is in use, the placement ring 501 is pulled and the placement ring 501 is placed inside the placement groove 4 in the connecting pipe 2, so that the placement ring 501 drives the two slide bars 16 on the outside of the movable ring 1001 to move, and when the slide bar 16 drives the limiting block 901 to contact the inner wall of the placement groove 4 in the connecting pipe 2, the placement of the placement ring 501 is completed, and then the connecting pipe 2 and the external pipe 3 are connected and fixed through the connecting flange. At this time, one side of the two limiting blocks 14 on the inner wall of the placement groove 4 in the external pipe 3 contacts one side of the placement ring 501, thereby fixing the position of the placement ring 501. When the pressure generated by the flow of liquid in the pipeline When the pressure is large, the barrier cloth 608 is impacted by the liquid and dented inwards, and the barrier cloth 608 drives the top plate 607 to move toward the inside of the hollow block 601, so that the top plate 607 drives the two rotating plates 606 to stretch toward both sides of the hollow block 601, and then the rotating plate 606 drives the slider 603 to move on the fixed rod 602. As the distance between the two sliders 603 increases, the tension spring 604 is stretched, and the impact force on the barrier cloth 608 drives the special-shaped block 506 to move toward one end of the seesaw 804, so that the special-shaped block 506 drives one end of the guide block 505 to contact one end of the seesaw 804, so that one end of the seesaw 804 moves along the guide block 505. 5 moves to one side. At this time, the rocker 804 moves toward the inner wall of the connecting pipe 2 under the action of the limiting rod 803, and the other end drives the clamping block 805 to separate from the protrusion 1003, releasing the restriction on the moving ring 1001, so that the moving ring 1001 slides on the slide bar 16 during the impact of the impact force. Since one side of the moving ring 1001 is connected to one end of the buffer spring 902, in combination with the buffer spring 902 and the increased distance between the first spoiler 11 and the second spoiler 12 on the fixed ring 801, the spoiler range can be expanded, the anti-seismic effect can be improved, and the vibration of the pipeline and the filter element inside the oil filter body 1 can be reduced. When the pipeline When the pressure generated by the liquid flow is relatively small, the impact force generated by the liquid flow is reduced by the disturbance of the first spoiler 11 in the placement ring 501 and the disturbance of the first spoiler 11 in the fixed ring 801. When the flowing liquid impacts the second spoiler 12, the second spoiler 12 is driven to rotate, and due to the force of the tension spring 604, the two sliders 603 are driven to approach each other, thereby driving the top plate 607 to lift and support the barrier cloth 608, and cooperating with the first spoiler 11 and the guide hole 15 on the placement ring 501, it is convenient to further disturb the liquid, so that the liquid can flow stably in the pipeline and the oil filter body 1.

[0032] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any other manner. Any person skilled in the art may utilize the above-disclosed technical content to modify or modify the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. Turbine oil precision filter oil pipeline reverse switching device, characterized in that: The oil filter comprises an oil filter body (1), a connecting pipe (2), an external pipe (3) and a switching valve (13), wherein two connecting pipes (2) and two external pipes (3) are provided, one end of each of the two connecting pipes (2) is fixedly connected to one side of the oil filter body (1), the switching valve (13) is installed at the top of the oil filter body (1), one end of each of the two external pipes (3) is connected to the two connecting pipes (2) through a connecting flange, and a placement groove (4) is provided at the opposite end of each of the connecting pipe (2) and the external pipe (3); The invention also includes a guide mechanism (5), a pushing mechanism (6), a toggle mechanism (8), a buffer mechanism (9) and an extension mechanism (10). The guide mechanism (5), the toggle mechanism (8) and the extension mechanism (10) are sequentially placed inside the connecting tube (2) from front to back. Two groups of first spoilers (11) are provided inside the guide mechanism (5) and the toggle mechanism (8). A group of second spoilers (12) is rotatably provided inside the extension mechanism (10). The pushing mechanism (6) is provided at the front end of the guide mechanism (5). Two support rods (7) are provided between the guide mechanism (5) and the pushing mechanism (6). Two slide rods (16) are provided at the rear side of the toggle mechanism (8), and the two slide rods (16) both pass through the rear side of the extension mechanism (10). The extension mechanism (10) is slidably provided on the two slide rods (16). The buffer mechanism (9) is provided outside the slide rod (16). The toggle mechanism (8) and the extension mechanism (10) are detachably connected.

2. The reverse switching device for the oil pipeline of a turbine oil precision filter according to claim 1 is characterized in that: A group of guide holes (15) is respectively provided on the front side of the guide mechanism (5), the toggle mechanism (8) and the extension mechanism (10), and the guide holes (15) in each group are respectively provided in a ring array on the front side of the guide mechanism (5), the toggle mechanism (8) and the extension mechanism (10).

3. The reverse switching device for the oil pipeline of a turbine oil precision filter according to claim 1 is characterized in that: Two limit blocks (14) are fixedly connected to the inner wall of the placement groove (4) located in the external tube (3), and one side of the two limit blocks (14) is in contact with the front side of the guide mechanism (5).

4. The reverse switching device for the oil pipeline of a turbine oil precision filter according to claim 1 is characterized in that: The guide mechanism (5) comprises a placement ring (501), a movable hole (502), a connecting block (503), a movable hole (504), a guide block (505) and a special-shaped block (506). The placement ring (501) is placed inside the placement groove (4). Two movable holes (502) are provided on one side of the placement ring (501). The two movable holes (502) are equidistantly arranged in a ring array. The two movable holes (502) are fixedly connected to the connecting block (503). A guide block (505) is provided on the outside of the connecting block (503). A movable hole (504) is provided on one side of the guide block (505). The guide block (505) is slidably connected to the connecting block (503) through the movable hole (504). One end of the guide block (505) is fixedly connected to the special-shaped block (506).

5. The reverse switching device for the oil pipeline of a turbine oil precision filter according to claim 4 is characterized in that: The pushing mechanism (6) comprises a hollow block (601), a fixed rod (602), a slider (603), a tension spring (604), a rotating seat (605), a rotating plate (606) and a top plate (607). One end of the hollow block (601) is fixedly connected to one end of the special-shaped block (506). The interior of the hollow block (601) is fixedly connected to the fixed rod (602). The exterior of the fixed rod (602) is slidably connected to two sliders (603). There is a space between the two sliders (603). A tension spring (604) is fixedly connected, and the tension spring (604) is located outside the fixed rod (602). One side of the two sliders (603) is fixedly connected to a rotating seat (605). The rotating seat (605) is rotatably connected to a rotating plate (606). One end of the two rotating plates (606) is rotatably connected to the same top plate (607). One end of the hollow block (601) is fixedly connected to a barrier cloth (608), and one end of the top plate (607) is in contact with the inner side of the barrier cloth (608).

6. The reverse switching device for the oil pipeline of a turbine oil precision filter according to claim 1 is characterized in that: The toggle mechanism (8) comprises a fixing ring (801), a mounting hole (802), a limiting rod (803), a seesaw (804) and a clamping block (805). The fixing ring (801) is placed inside the placement groove (4). Two mounting holes (802) are provided on one side of the fixing ring (801). The two mounting holes (802) are equidistantly arranged in a circular array. The two mounting holes (802) are fixedly connected to the inside of the limiting rod (803). The limiting rod (803) is rotatably connected to the seesaw (804). One end of the seesaw (804) is fixedly connected to the clamping block (805).

7. The reverse switching device for the oil pipeline of a turbine oil precision filter according to claim 1 is characterized in that: The buffer mechanism (9) includes a limiting block (901) and a buffer spring (902). Two limiting blocks (901) are provided. One end of the two limiting blocks (901) is fixedly connected to one end of two slide bars (16) respectively. A buffer spring (902) is provided on the outside of the slide bar (16). One end of the buffer spring (902) is fixedly connected to one side of the limiting block (901), and the other end is fixedly connected to the extension mechanism (10).

8. The reverse switching device for the oil pipeline of a turbine oil precision filter according to claim 7 is characterized in that: One end of the two limiting blocks (901) contacts one side of the inner wall of the placement groove (4) located in the connecting pipe (2).

9. The reverse switching device for the oil pipeline of a turbine oil precision filter according to claim 1 is characterized in that: The extension mechanism (10) comprises a moving ring (1001), a connecting hole (1002) and a protrusion (1003); the moving ring (1001) is placed inside the placement groove (4); two connecting holes (1002) are provided on one side of the moving ring (1001); the two connecting holes (1002) are arranged equidistantly in a circular array; and protrusions (1003) are fixedly connected to the outer sides of the two connecting holes (1002) on one side of the moving ring (1001).

10. The reverse switching device for the oil pipeline of a turbine oil precision filter according to claim 6, characterized in that: Both of the rockers (804) pass through the extension mechanism (10).

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