Inverted switching device for precision oil filtering engine oil pipeline

Abstract

The invention relates to the technical field of oil pipeline reversing, in particular to a precision oil filtering engine oil pipeline reversing switching device which comprises a reversing assembly, a reversing assembly, a reversing assembly, a reversing assembly, a reversing assembly and a reversing assembly. The reversing assembly comprises an oil tank and a bearing arranged at the bottom end of the oil tank, and the bearing and the side wall of the oil tank are provided with oil filters; a first valve and a second valve are installed at the positions where the oil filter is connected with the oil tank and the bearing, and a reversing piece is arranged at the position of a pipeline where the oil filter is connected with the oil tank and the bearing and used for conducting reversing switching operation on oil. The fixing assembly comprises a connecting pipe arranged at the inlet and outlet position of the oil filter, a plug connector used for limiting the connecting pipe and the inlet and outlet of the oil filter is installed between the connecting pipe and the inlet and outlet of the oil filter, and a shifting piece used for fixing the plug connector is installed on the side wall of the oil filter. Reverse oil feeding is directly carried out through the reversing piece without taking back the connecting pipe, environmental pollution caused by oil leakage is avoided, direct reverse oil conveying can be carried out, the working efficiency is improved, and the labor cost is reduced.

Description

Technical Field

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

[0002] At present, precision oil filters are mainly used to purify lubricating oil in bearing oil tanks in industrial applications such as hydropower stations. However, existing precision oil filters have the following technical problems: when the bearing oil level is added to the normal oil level, since the precision oil filter does not have the function of reverse oil delivery, the lubricating oil often leaks during the process of retracting the oil pipe, thereby polluting the environment, and manually switching the oil pipeline is time-consuming and labor-intensive. If the bearing oil level is found to be too high during the oil filling process and the oil level needs to be adjusted, the oil pipeline needs to be manually switched, which is not only time-consuming but also labor-intensive. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the problems that lubricating oil may leak during the oil pipe retraction process and that manual oil pipe switching is time-consuming and labor-intensive, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a precision oil filter oil pipeline reverse switching device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a precision oil filter oil pipeline reverse switching device, comprising, a reverse assembly, including an oil tank, a bearing arranged at the bottom end of the oil tank, an oil filter is installed on the side wall of the bearing and the oil tank, a first valve and a second valve are installed at the position where the oil filter is connected to the oil tank and the bearing, and a reverse member is arranged at the pipeline where the oil filter is connected to the oil tank and the bearing for performing a reverse switching operation on the oil;

[0007] A fixing component comprises a connecting pipe arranged at the inlet and outlet of the oil filter, wherein the inlet and outlet of the oil filter are narrow in the middle and wide at both ends, and sealing rings are installed on the side walls of the inlet and outlet of the oil filter, and a limiting ring is installed in the middle of the sealing ring to match the sealing gasket on the connecting pipe, a plug-in component for limiting the connecting pipe and the inlet and outlet of the oil filter is installed between the connecting pipe and the inlet and outlet of the oil filter, and a toggle component for fixing the plug-in component is installed on the side wall of the oil filter.

[0008] As a preferred solution of the oil pipeline reverse switching device of the precision oil filter according to the present invention, the reversing member includes a third valve, a fourth valve, a fifth valve and a sixth valve arranged on the connecting pipe, the third valve and the fourth valve are located at the inlet of the oil filter, and the fifth valve and the sixth valve are located at the outlet of the oil filter.

[0009] As a preferred solution of the precision oil filter oil pipeline reverse switching device of the present invention, the reversing member also includes a first branch pipe and a second branch pipe arranged on the side wall of the connecting pipe, the first branch pipe and the second branch pipe are cross-arranged, and the first branch pipe and the second branch pipe are respectively provided with a seventh valve and an eighth valve.

[0010] As a preferred solution of the oil pipeline reverse switching device of the precision oil filter of the present invention, the connector includes an insertion rod arranged at the end of the connecting pipe, the insertion rod is inserted into the interior of the fixed cylinder at the end of the oil filter and ejects the sliding cylinder, wherein the connecting pipe and the oil filter are sealed by a flange.

[0011] As a preferred solution of the reverse switching device of the precision oil filter oil pipeline of the present invention, the connector also includes a spring shaft arranged at the end of the sliding cylinder, the side wall of the spring shaft is sleeved with a ratchet, the front view of the ratchet is an inverted "J" shape, and the sliding cylinder is sleeved on the side wall of the fixed cylinder.

[0012] As a preferred solution of the precision oil filter oil pipeline reverse switching device described in the present invention, the toggle member includes a ratchet wheel arranged on the side wall of the oil filter inlet and outlet, the inner wall of the ratchet wheel is threadedly arranged and threadedly connected to the outer wall of the oil filter inlet and outlet, and the side wall of the ratchet wheel is provided with a ratchet block matching the ratchet tooth.

[0013] As a preferred solution of the reverse switching device for the precision oil filter oil pipeline of the present invention, wherein: the toggle member further includes a baffle plate arranged on the side wall of the ratchet, the baffle plate is used to limit the range of movement of the ratchet, and a first telescopic spring is arranged between the sliding cylinder and the fixed cylinder;

[0014] The first telescopic spring is sleeved on the side wall of the fixed cylinder, one end of the first telescopic spring is connected to the fixed cylinder, and one end of the first telescopic spring away from the fixed cylinder is connected to the sliding cylinder.

[0015] As a preferred solution of the reverse switching device of the precision oil filter oil pipeline of the present invention, the toggle member also includes a limit groove arranged on the side wall of the sliding cylinder, and the ratchet and the ratchet block are used to limit the moving direction of the ratchet wheel.

[0016] As a preferred solution of the reverse switching device of the precision oil filter oil pipeline of the present invention, the toggle member also includes a pin rod arranged at the bottom end of the sliding cylinder, and the top end of the pin rod passes through the sliding cylinder and extends to the fixed cylinder to be inserted into the interior of the insertion rod to connect and seal the connecting pipe, and the side wall of the pin rod is sleeved with a second telescopic spring.

[0017] As a preferred solution of the reverse switching device for the oil pipeline of the precision oil filter of the present invention, the toggle member further includes a telescopic ring arranged on the side wall of the ratchet, and the bottom end of the pin rod is inclined to match the ratchet.

[0018] Beneficial effects of the present invention: After the bearing oil level of the present invention is added to the normal oil level, since the precision oil filter does not have the reverse oil delivery function, oil leakage will occur when the connecting pipe is retracted, causing environmental pollution. After the modification, there is no need to retract the connecting pipe to directly reverse the oil delivery to avoid oil leakage and environmental pollution. If the bearing oil level is too high during oil filling, it is time-consuming and labor-intensive to manually switch the connecting pipeline when the oil level needs to be adjusted. After the modification, direct reverse oil delivery can be achieved, which improves work efficiency and reduces labor costs. Through the design of the connector and the toggle member, the connection pipe and the oil filter inlet and outlet can be quickly connected and disassembled, which greatly reduces the operation time and improves work efficiency. The coordination of the ratchet and the ratchet teeth, as well as the insertion of the pin rod, ensure the stability of the connecting pipe during use and effectively prevent accidental falling off. The insertion of the pin rod not only completes the fixation of the connecting pipe, but also ensures the sealing of the connection, reducing the risk of oil leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without any creative labor.

[0020] Figure 1 The present invention is a schematic diagram of the overall guiding process of a precision oil filter oil pipeline reverse switching device.

[0021] Figure 2 The present invention is a schematic diagram of the connection structure between the fixed components of a precision oil filter oil pipeline reverse switching device and the oil filter.

[0022] Figure 3 The present invention is a schematic diagram of the fixed component structure of a precision oil filter oil pipeline reverse switching device.

[0023] Figure 4 This is a schematic diagram of the disassembly of the fixed components of a precision oil filter oil pipeline reverse switching device.

[0024] Figure 5 The present invention is a schematic diagram of the front view structure of a toggle member of a reverse switching device for an oil pipeline of a precision oil filter.

[0025] Figure 6 The present invention is a schematic diagram of the cross-sectional structure of a sliding cylinder of a reverse switching device for the oil pipeline of a precision oil filter.

[0026] Figure 7 It is a bottom-up schematic diagram of the cross-sectional structure of a sliding cylinder of a reverse switching device for an oil pipeline of a precision oil filter.

[0027] Figure 8 The present invention is a schematic diagram of the connection structure between the ratchet and telescopic ring of a precision oil filter oil pipeline reverse switching device.

[0028] Reference numerals:

[0029] 100, reverse assembly; 101, oil tank; 102, bearing; 103, oil filter; 104, first valve; 105, second valve; 106, reverse member;

[0030] 106a, the third valve; 106b, the fourth valve; 106c, the fifth valve; 106d, the sixth valve; 106e, the first branch pipe; 106f, the second branch pipe; 106g, the seventh valve; 106h, the eighth valve;

[0031] 200, fixing assembly; 201, connecting pipe; 202, sealing ring; 203, limiting ring; 204, sealing pad; 205, plug-in component; 206, toggle component;

[0032] 205a, plug rod; 205b, fixed cylinder; 205c, sliding cylinder; 205d, spring shaft; 205e, ratchet;

[0033] 206a, ratchet; 206b, ratchet block; 206c, baffle; 206d, first telescopic spring; 206e, limiting groove; 206f, pin rod; 206g, second telescopic spring; 206h, telescopic ring. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0038] Example 1, reference Figure 1 , which is the first embodiment of the present invention, and provides a precision oil filter oil pipeline reverse switching device, including a reverse assembly 100, including an oil tank 101, a bearing 102 arranged at the bottom of the oil tank 101, an oil filter 103 is installed on the side wall of the bearing 102 and the oil tank 101, a first valve 104 and a second valve 105 are installed at the position where the oil filter 103 is connected to the oil tank 101 and the bearing 102, and a reverse member 106 is provided at the pipeline connecting the oil filter 103 to the oil tank 101 and the bearing 102 for performing reverse switching operation on the oil.

[0039] Furthermore, the inverting member 106 includes a third valve 106a, a fourth valve 106b, a fifth valve 106c and a sixth valve 106d arranged on the connecting pipe 201, the third valve 106a and the fourth valve 106b are located at the inlet of the oil filter 103, and the fifth valve 106c and the sixth valve 106d are located at the outlet of the oil filter 103.

[0040] Furthermore, the inverting member 106 also includes a first branch pipe 106e and a second branch pipe 106f arranged on the side wall of the connecting pipe 201. The first branch pipe 106e and the second branch pipe 106f are arranged crosswise. The first branch pipe 106e and the second branch pipe 106f are respectively provided with a seventh valve 106g and an eighth valve 106h.

[0041] Operation process: Currently, the oil filter 103 only has the first valve 104 and the second valve 105. After the oil level of the bearing 102 is added to the normal oil level, the precision oil filter 103 does not have a reverse function. After the transformation, the oil filter 103 operates normally, the seventh valve 106g and the eighth valve 106h are closed, the oil tank 101 is connected to the oil suction port of the oil filter 103 through the third valve 106a, the fourth valve 106b and the first valve 104, and the oil is filtered by the oil filter 103 and flows out through the second valve 105, the fifth valve 106c and the sixth valve 106d to inject oil into the bearing 102; when running in reverse, the fifth valve 106c and the fourth valve 106b are closed, the seventh valve 106g and the eighth valve 106h are opened, and the bearing oil flows through the sixth valve 106d, the eighth valve 106h and the first valve 104 into the oil filter 103 for filtration, and then enters the oil tank 101 through the second valve 105, the seventh valve 106g and the third valve 106a, completing the reverse operation.

[0042] Example 2, reference Figure 2 to Figure 4 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that quick connection and disassembly are achieved through the plug-in connector 205, and the sealing ring 202 and the limiting ring 203 ensure good sealing performance.

[0043] Specifically, the fixing component 200 includes a connecting pipe 201 arranged at the inlet and outlet of the oil filter 103. The inlet and outlet of the oil filter 103 are narrow in the middle and wide at both ends, and sealing rings 202 are installed on the side walls of the inlet and outlet of the oil filter 103. A limiting ring 203 is installed in the middle of the sealing ring 202 to match the sealing gasket 204 on the connecting pipe 201. A connector 205 for limiting the connecting pipe 201 and the inlet and outlet of the oil filter 103 is installed between the two, and a toggle member 206 for fixing the connector 205 is installed on the side wall of the oil filter 103.

[0044] Furthermore, the connector 205 includes an insert rod 205a arranged at the end of the connecting pipe 201, and the insert rod 205a is inserted into the interior of the fixed cylinder 205b at the end of the oil filter 103 and ejected from the sliding cylinder 205c, wherein the connecting pipe 201 and the oil filter 103 are sealed by a flange.

[0045] Furthermore, the connector 205 also includes a spring shaft 205d arranged at the end of the sliding cylinder 205c, the side wall of the spring shaft 205d is sleeved with a ratchet 205e, the front view of the ratchet 205e is an inverted "J" shape, and the sliding cylinder 205c is sleeved on the side wall of the fixed cylinder 205b.

[0046] The rest of the structure is the same as that of Example 1.

[0047] Operation process: Align the end of the connecting pipe 201 with the insertion rod 205a at the inlet and outlet position of the oil filter 103. Insert the insertion rod 205a into the fixed cylinder 205b at the end of the oil filter 103 and push out the sliding cylinder 205c. As the sliding cylinder 205c moves, the ratchet 205e also moves accordingly to contact the ratchet block 206b, wherein the ratchet block 206b can effectively prevent the ratchet 205e from moving in the opposite direction. During the movement of the sliding cylinder 205c, the first telescopic spring 206d on it is compressed to provide a reset force for the sliding cylinder 205c. The plug-in component 205 is fixed by rotating the toggle member 206. At this time, the ratchet 205e is fixed in the opposite direction, so it can only move in one direction. When the ratchet 206a moves in the opposite direction, it will be stuck by the ratchet 205e, so it can only move in the correct direction to prevent installation errors. The connecting pipe 201 and the inlet and outlet of the oil filter 103 are sealed by flanges. The sealing ring 202 and the stop ring 203 ensure the sealing of the connection. The plug-in connector 205 is loosened by reversing the operation of the toggle member 206. The sliding cylinder 205c moves back under the action of the first telescopic spring 206d. The plug-in rod 205a is pulled out of the fixed cylinder 205b, and the connecting pipe 201 is separated from the oil filter 103. The plug-in connector 205 is used to achieve quick connection and disassembly. The sealing ring 202 and the stop ring 203 ensure good sealing performance. The toggle member 206 simplifies the operation process.

[0048] Example 3, reference Figures 5 to 8 , which is the third embodiment of the present invention. This embodiment is different from the above embodiments in that quick connection and disassembly are achieved through the plug-in component 205 and the toggle component 206, and the design of the toggle component 206 simplifies the operation process.

[0049] Specifically, the toggle member 206 includes a ratchet 206a disposed on the side wall of the inlet and outlet of the oil filter 103, the inner wall of the ratchet 206a is threadedly arranged and threadedly connected to the outer wall of the inlet and outlet of the oil filter 103, and the side wall of the ratchet 206a is provided with a ratchet block 206b matching the ratchet tooth 205e.

[0050] Furthermore, the toggle member 206 further includes a baffle 206c disposed on the side wall of the ratchet 205e, the baffle 206c is used to limit the range of motion of the ratchet 205e, and a first telescopic spring 206d is disposed between the sliding cylinder 205c and the fixed cylinder 205b;

[0051] The first telescopic spring 206d is sleeved on the side wall of the fixed cylinder 205b, and one end of the first telescopic spring 206d is connected to the fixed cylinder 205b, and one end of the first telescopic spring 206d away from the fixed cylinder 205b is connected to the sliding cylinder 205c.

[0052] Furthermore, the toggle member 206 further includes a limiting groove 206e disposed on the side wall of the sliding cylinder 205c, and the ratchet teeth 205e and the ratchet block 206b are used to limit the moving direction of the ratchet wheel 206a.

[0053] Furthermore, the toggle member 206 also includes a pin rod 206f arranged at the bottom end of the sliding cylinder 205c, and the top end of the pin rod 206f extends through the sliding cylinder 205c to the fixed cylinder 205b and is inserted into the interior of the insertion rod 205a to connect and seal the connecting tube 201, and the side wall of the pin rod 206f is provided with a second telescopic spring 206g.

[0054] Furthermore, the toggle member 206 also includes a telescopic ring 206h arranged on the side wall of the ratchet 205e, and the bottom end of the pin rod 206f is inclined to match the ratchet 206a.

[0055] The rest of the structure is the same as that of Example 2.

[0056] Operation process: When the device is in use, first, the connecting pipe 201 is connected to the oil tank 101, the oil filter 103 and the bearing 102. Because the bearing 102 is previously connected by a clamp and then tightened, and the clamp is also loosened for disassembly, the installation and disassembly of the connecting pipe 201 is more troublesome. Now, a plug-in fixing method is adopted, in which the plug rod 205a on the connecting pipe 201 is directly inserted into the position of the flange where it needs to be installed. The insertion force will drive the sliding cylinder 205c to slide in the fixed cylinder 205b, so that the sliding cylinder 205c The ratchet 205e on the ratchet 205e contacts the ratchet block 206b, and the moving sliding cylinder 205c squeezes and stores force on the first telescopic spring 206d, and then rotates the ratchet 206a, and the ratchet 205e is moved by the ratchet 206a to cause it to deflect. While moving the ratchet 205e, the diameter of the inclined block on the ratchet 205e becomes larger and larger, so the pin rod 206f is driven to move upward and insert into the inside of the insertion rod 205a to fix the connecting tube 201, and at the same time, the second telescopic spring 206g is squeezed and stored. In order to ensure the safety during installation, To ensure its sealing performance, we use an annular U-shaped sealing ring 202, and a limiting ring 203 is used in the middle to limit the sealing ring 202, and an extended pipe is used at the inlet and outlet and fits with the inner wall of the connecting pipe 201. Even if the oil in the pipe leaks, it needs to overflow from the inlet and outlet to between the connecting pipe 201 and the inlet and outlet, and then it can leak out from the connecting pipe 201, thereby improving the sealing performance of the installation. When the connection of the connecting pipe 201 needs to be released, the telescopic ring 206h is pulled to drive the ratchet 205e to move in one direction for expansion, wherein the telescopic ring 206h is pulled to drive the ratchet 205e to move in one direction for expansion, and ... The shrink ring 206h and the telescopic rod are similarly far away and move in only one direction, so the deflected ratchet 205e can cancel the direction limitation of the ratchet 205e on the ratchet wheel 206a. Therefore, the ratchet wheel 206a is rotated in the opposite direction and the diameter is slowly reduced. The pin rod 206f can be effectively removed from the insertion rod 205a through the elastic force of the second telescopic spring 206g. After the insertion rod 205a is removed from the fixed tube 205b, the elastic force of the first telescopic spring 206d can effectively drive the ratchet 205e to move back.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A precision oil filter oil pipeline reverse switching device, characterized in that: include, A reversing assembly (100) comprises an oil tank (101), a bearing (102) arranged at the bottom end of the oil tank (101), an oil filter (103) being installed on the side wall of the bearing (102) and the oil tank (101), a first valve (104) and a second valve (105) being installed at the position where the oil filter (103) is connected to the oil tank (101) and the bearing (102), and a reversing member (106) for performing a reversing switching operation on the oil is arranged at the pipe where the oil filter (103) is connected to the oil tank (101) and the bearing (102); The fixing assembly (200) comprises a connecting pipe (201) arranged at the inlet and outlet of the oil filter (103); the inlet and outlet of the oil filter (103) are arranged to be narrow in the middle and wide at both ends; a sealing ring (202) is installed on the side wall of the inlet and outlet of the oil filter (103); a limiting ring (203) is installed in the middle of the sealing ring (202) to match the sealing gasket (204) on the connecting pipe (201); a plug-in component (205) for limiting the connection pipe (201) and the inlet and outlet of the oil filter (103) is installed between the connecting pipe (201) and the inlet and outlet of the oil filter (103); and a toggle component (206) for fixing the plug-in component (205) is installed on the side wall of the oil filter (103).

2. The reverse switching device for the oil pipeline of a precision oil filter according to claim 1, characterized in that: The inverting member (106) comprises a third valve (106a), a fourth valve (106b), a fifth valve (106c) and a sixth valve (106d) arranged on the connecting pipe (201); the third valve (106a) and the fourth valve (106b) are located at the inlet of the oil filter (103); and the fifth valve (106c) and the sixth valve (106d) are located at the outlet of the oil filter (103).

3. The reverse switching device for the oil pipeline of a precision oil filter as claimed in claim 2, characterized in that: The inverting member (106) further comprises a first branch pipe (106e) and a second branch pipe (106f) arranged on the side wall of the connecting pipe (201); the first branch pipe (106e) and the second branch pipe (106f) are arranged in a cross-shaped manner; and the first branch pipe (106e) and the second branch pipe (106f) are respectively provided with a seventh valve (106g) and an eighth valve (106h).

4. The reverse switching device for the oil pipeline of a precision oil filter as claimed in claim 3, characterized in that: The plug-in connector (205) comprises an insertion rod (205a) arranged at the end of the connecting pipe (201), and the insertion rod (205a) is inserted into the interior of the fixed cylinder (205b) at the end of the oil filter (103) to eject the sliding cylinder (205c), wherein the connecting pipe (201) and the oil filter (103) are sealed by a flange.

5. The reverse switching device for the oil pipeline of a precision oil filter as claimed in claim 4, characterized in that: The plug-in connector (205) further comprises a spring shaft (205d) arranged at the end of the sliding cylinder (205c), the side wall of the spring shaft (205d) is sleeved with a ratchet (205e), the front view of the ratchet (205e) is in an inverted "J" shape, and the sliding cylinder (205c) is sleeved on the side wall of the fixed cylinder (205b).

6. The reverse switching device for the oil pipeline of a precision oil filter as claimed in claim 5, characterized in that: The toggle member (206) comprises a ratchet (206a) arranged on the side wall of the inlet and outlet of the oil filter (103); the inner wall of the ratchet (206a) is threadedly arranged and threadedly connected to the outer wall of the inlet and outlet of the oil filter (103); and the side wall of the ratchet (206a) is provided with a ratchet block (206b) matching the ratchet tooth (205e).

7. The reverse switching device for the oil pipeline of a precision oil filter as claimed in claim 6, characterized in that: The toggle member (206) further comprises a baffle (206c) arranged on the side wall of the ratchet (205e), wherein the baffle (206c) is used to limit the range of movement of the ratchet (205e), and a first telescopic spring (206d) is arranged between the sliding cylinder (205c) and the fixed cylinder (205b); The first telescopic spring (206d) is sleeved on the side wall of the fixed cylinder (205b), and one end of the first telescopic spring (206d) is connected to the fixed cylinder (205b), and one end of the first telescopic spring (206d) away from the fixed cylinder (205b) is connected to the sliding cylinder (205c).

8. The reverse switching device for the oil pipeline of a precision oil filter as claimed in claim 7, characterized in that: The toggle member (206) further comprises a limiting groove (206e) arranged on the side wall of the sliding cylinder (205c), and the ratchet teeth (205e) and the ratchet block (206b) are used to limit the moving direction of the ratchet wheel (206a).

9. The reverse switching device for the oil pipeline of a precision oil filter as claimed in claim 8, characterized in that: The toggle member (206) further comprises a pin rod (206f) arranged at the bottom end of the sliding cylinder (205c), and the top end of the pin rod (206f) passes through the sliding cylinder (205c) and extends to the fixed cylinder (205b) and is inserted into the interior of the insertion rod (205a) to connect and seal the connecting tube (201), and the side wall of the pin rod (206f) is sleeved with a second telescopic spring (206g).

10. The oil pipeline reversing switching device for a precision oil filter as claimed in claim 9, characterized in that: The toggle member (206) further comprises a telescopic ring (206h) arranged on the side wall of the ratchet (205e), and the bottom end of the pin rod (206f) is arranged at an angle to match the ratchet (206a).

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