Maintenance device for the rotating part of the isolating switch

Abstract

The present invention discloses a maintenance device for the rotating part of an isolating switch in the technical field of maintenance devices, comprising an air compressor, an air pipe and a dual-purpose spray gun, wherein an input end of the dual-purpose spray gun is connected to an output end of the air compressor through the air pipe; the dual-purpose spray gun comprises a switch handle, a front end of the switch handle is connected to a diverter component for diverting the intake air into two air paths, a switching component for controlling the air to switch between the two air paths and only pass to one of the air paths is arranged between the diverter component and the front end of the switch handle, a gun body corresponding to the output connection of the two air paths is connected to the front end of the diverter component, and a storage component for storing anti-rust paint and lubricating grease is connected to the lower end of the gun body. The maintenance device for the rotating part of the isolating switch of the present invention integrates pressure adjustment, switching function, efficient cleaning, rapid air drying and sufficient lubrication functions, does not require disassembly of the rotating part, and improves work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of maintenance devices, in particular to a maintenance device for the rotating part of an isolating switch. Background Art

[0002] An isolating switch is a switching device that is mainly used for "isolating power supply, switching operation, connecting and disconnecting small current circuits" and has no arc extinguishing function. When the isolating switch is in the open position, there is an insulation distance that meets the specified requirements and an obvious disconnection mark between the contacts; when in the closed position, it can carry the current under normal circuit conditions and the current under abnormal conditions such as short circuit within a specified time. It is generally used as a high-voltage isolating switch, that is, an isolating switch with a rated voltage of more than 1kV. Its working principle and structure are relatively simple, but due to its large usage and high requirements for working reliability, it has a great impact on the design, construction and safe operation of substations and power plants. The main feature of the isolating switch is that it has no arc extinguishing ability and can only open and close the circuit without load current. The entry introduces the functions, characteristics, types, applications, error prevention improvements, maintenance, common problems, etc. of the isolating switch.

[0003] Whether the rotating parts of the isolating switch are flexible is a key factor in the reliable operation and movement of the equipment. At present, there are dried sludge, paint, and rust on the rotating parts, which cannot be effectively treated by daily maintenance processes, resulting in safety hazards such as equipment operation jams and refusal to move. If the rotating parts are disassembled and repaired every time, it will be time-consuming and laborious.

[0004] Based on this, the present invention designs a maintenance device for the rotating part of an isolating switch to solve the above-mentioned problem. Summary of the invention

[0005] The purpose of the invention is to provide a maintenance device for the rotating part of an isolating switch to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the invention provides the following technical solutions: a maintenance device for the rotating part of an isolating switch, comprising an air compressor, an air pipe and a dual-purpose spray gun, wherein the input end of the dual-purpose spray gun is connected to the output end of the air compressor through the air pipe;

[0007] The dual-purpose spray gun includes a switch handle, the front end of the switch handle is connected to a diverter component that diverts the incoming air into two air paths, a switching component is provided between the diverter component and the front end of the switch handle for controlling the switching of air between the two air paths and only leading to one of the air paths, the front end of the diverter component is connected to a gun body corresponding to the connection outputs of the two air paths respectively, and the lower end of the gun body is connected to a storage component for storing anti-rust paint and lubricating grease.

[0008] Preferably, the switch handle comprises a handle, the upper end of the handle is integrally connected with a connection end cover, the lower end of the handle is provided with an air intake pipe, the upper end of the air intake pipe extends into the connection end cover through the inner cavity of the handle, a valve switch for controlling the air supply of the air intake pipe is provided on the side of the handle, the switching member is provided in the connection end cover, and a clearance hole is provided on the connection end cover for exposing the control end of the switching member;

[0009] The flow divider comprises a disc body, a circular arc blind groove is formed on the rear end surface of the disc body, a purge air hole and a push air hole penetrating the disc body are formed at both ends of the circular arc blind groove, a gas path isolation frame is formed on the front end surface of the disc body, and the front ends of the purge air hole and the push air hole are respectively located on the outer side and the inner side of the gas path isolation frame;

[0010] The switching member comprises a circular plate body, a connecting air hole for free air flow is arranged below the circular plate body, a circular arc boss is integrally arranged at the front end of the circular plate body, the circular arc boss is embedded in the circular arc blind groove, and the circular plate body is rotated to cover the purge air hole or the push air hole, and a switching rod is connected to the middle of the rear end surface of the circular plate body, and the rear end of the switching rod extends out of the giving way hole;

[0011] A purge air outlet gun barrel connected to the purge air hole is arranged on the side of the gun body, a piston mounting cavity is arranged inside the gun body, and a piston member for pushing out anti-rust paint or grease is arranged in the piston mounting cavity, a pushing connecting hole is opened at the rear end of the piston mounting cavity, and the air path isolation frame connects the pushing air hole with the pushing connecting hole, a rust-proof lubrication gun barrel connected to the piston mounting cavity is arranged at the front end of the gun body, a connecting seat is arranged below the gun body, and a rust-proof lubrication channel is opened inside the connecting seat to connect the storage member with the rear end of the rust-proof lubrication gun barrel.

[0012] Preferably, the piston member includes a T-shaped push rod piston and a T-shaped sleeve piston, the push rod of the T-shaped push rod piston is inserted into the through circular hole of the T-shaped sleeve piston and maintains a movable and fitting connection, and a piston compression spring is provided between the T-shaped push rod piston and the T-shaped sleeve piston to separate and press the two.

[0013] Preferably, the storage component includes a storage tank connected to the bottom of the gun body, a handle rod is provided below the storage tank, the upper end of the handle rod movably passes through the bottom of the storage tank and then extends into the inner cavity of the storage tank and is connected to a push piston, the area above the push piston in the storage tank is a storage space, and the outer wall of the handle rod at one end of the inner cavity of the storage tank is provided with a push compression spring, and the upper and lower ends of the push compression spring are respectively abutted against the push piston and the bottom of the inner cavity of the storage tank.

[0014] Preferably, a pressure regulating valve is provided on the gas pipeline.

[0015] Compared with the prior art, the invention has the following beneficial effects:

[0016] The maintenance device for the rotating part of the isolating switch of the present invention integrates the functions of pressure adjustment, switching, efficient cleaning, rapid air drying and sufficient lubrication, and does not require disassembly of the rotating part, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the dual-purpose spray gun of the present invention;

[0020] Figure 3 The explosion structure of the dual-purpose spray gun of the present invention is schematically shown. Figure 2 ;

[0021] Figure 4 It is a schematic diagram of the internal structure of the dual-purpose spray gun of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 100-air compressor, 200-air pipe, 300-dual-purpose spray gun, 310-switch handle, 311-handle, 312-connecting end cover, 313-inlet pipe, 314-valve switch, 315-allowance hole, 320-diverter, 321-disc body, 322-arc blind groove, 323-purge air hole, 324-push air hole, 325-air path isolation frame, 330-switching part, 331-circular plate body, 332-connecting air hole, 333-arc boss, 33 4-switching lever, 340-gun body, 341-purge air outlet gun barrel, 342-piston mounting chamber, 343-piston member, 3431-T-shaped push rod piston, 3432-T-shaped sleeve piston, 3433-piston compression spring, 344-pushing connecting hole, 345-rust-proof lubricating gun barrel, 346-rust-proof lubricating channel, 347-connecting seat, 350-storage member, 351-canning tank, 352-handle pull rod, 353-push piston, 354-push compression spring, 400-pressure regulating valve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0025] See also Figure 1-4 The invention provides a technical solution: a maintenance device for the rotating part of an isolating switch, comprising an air compressor 100, an air pipe 200 and a dual-purpose spray gun 300, wherein the input end of the dual-purpose spray gun 3 is connected to the output end of the air compressor 100 through the air pipe 200;

[0026] The dual-purpose spray gun 300 includes a switch handle 310, the front end of which is connected to a diverter 320 for diverting the incoming air into two air paths, a switching member 330 for controlling the switching of air between the two air paths and only leading to one of the air paths is arranged between the diverter 320 and the front end of the switch handle 310, the front end of the diverter 320 is connected to a gun body 340 corresponding to the connection outputs of the two air paths respectively, and the lower end of the gun body 340 is connected to a storage member 350 for storing anti-rust paint and lubricating grease.

[0027] Specifically, the switch handle 310 includes a handle 311, the upper end of the handle 311 is integrally connected with a connecting end cover 312, the lower end of the handle 311 is provided with an air inlet pipe 313, the upper end of the air inlet pipe 313 extends into the connecting end cover 312 through the inner cavity of the handle 311, a valve switch 314 for controlling the air supply on and off of the air inlet pipe 313 is provided on the side of the handle 311, and a switching member 330 is provided in the connecting end cover 312. The control end exposes a yield hole 315; when working, the air inlet pipe 313 is connected to the output end of the air supply pipe 200 through the air pipe joint, and the compressed air enters the air inlet pipe 313 and is transported to the connecting end cover 312 along the inner cavity channel of the handle 311. The valve switch 314 is a touch-type normally closed valve. When ventilation is required, the valve switch 314 is pressed to connect the inner cavity channel of the handle 311. When idle, the valve switch 314 is released, and the valve switch 314 automatically resets and rebounds to close the inner cavity channel of the handle 311.

[0028] The diverter 320 includes a disc body 321, a circular arc blind groove 322 is provided on the rear end surface of the disc body 321, and a purge air hole 323 and a push air hole 324 that pass through the disc body 321 are respectively provided at both ends of the circular arc blind groove 322. An air path isolation frame 325 is provided on the front end surface of the disc body 321, and the front ends of the purge air hole 323 and the push air hole 324 are respectively located on the outside and inside of the air path isolation frame 325; depending on the working mode, compressed air can only pass through one of the purge air hole 323 and the push air hole 324. When air flows through the purge air hole 323, it is a purge mode, and the compressed air is directly output to the part of the isolating switch that needs to be cleaned. When the compressed air passes through the push air hole 324, the air pressure is used to push the front end mechanism to discharge the anti-rust paint or lubricating grease. The anti-rust paint or lubricating grease acts on the cleaned isolating switch for maintenance.

[0029] The switching member 330 includes a circular plate body 331, and a connecting air hole 332 for free air flow is arranged below the circular plate body 331. A circular arc boss 333 is integrally arranged at the front end of the circular plate body 331. The circular arc boss 333 is embedded in the circular arc blind groove 322, and the circular plate body 331 rotates to cover the purge air hole 323 or the push air hole 324. A switching rod 334 is connected to the middle of the rear end surface of the circular plate body 331, and the rear end of the switching rod 334 extends out from the clearance hole 315; the connecting air hole 332 is used to guide the compressed air from the switch handle 310 to the diverter 320. The circular arc boss 333 and the circular arc blind groove 322 have the same width, but the arc length of the circular arc boss 333 is shorter than that of the circular arc blind groove 322. 3 can move along the arc track in the arc blind groove 322. When the arc boss 333 moves to the side of the purge air hole 323, the purge air hole 323 is shielded by the arc boss 333. At this time, the pushing air hole 324 is connected, and the compressed air flows from the pushing air hole 324 to act in the front pushing mechanism, which is the same as pushing the anti-rust paint or lubricant. On the contrary, when the arc boss 333 moves to the side of the pushing air hole 324, the pushing air hole 324 is shielded by the arc boss 333. At this time, the purge air hole 323 is connected, and the compressed air flows from the purge air hole 323, which is the purge mode, and the compressed air is directly output to the part of the disconnector that needs to be cleaned; the control of the arc boss 333 is switched by the rear end rotation of the switching rod 334.

[0030] The gun body 340 is provided with a purge air outlet gun tube 341 connected to the purge air hole 323 on the side thereof, and the front end of the purge air outlet gun tube 341 is connected to a corresponding purge nozzle, the gun body 340 has a piston mounting chamber 342 inside thereof, and a piston member 343 for pushing out anti-rust paint or grease is provided in the piston mounting chamber 342, a pushing connecting hole 344 is provided at the rear end of the piston mounting chamber 342, and the air path isolation frame 325 connects the pushing air hole 324 with the pushing connecting hole 344, and the front end of the gun body 340 is provided with an anti-rust lubrication gun tube 345 connected to the piston mounting chamber 342, and the front end of the anti-rust lubrication gun tube 345 is connected to a corresponding injection nozzle A connecting seat 347 is provided under the gun body 340, and an anti-rust lubrication channel 346 is provided inside the connecting seat 347 for connecting the storage unit 350 with the rear end of the anti-rust lubrication barrel 345. When working, the purge air outlet barrel 341 can directly export compressed air for purge, while the anti-rust lubrication barrel 345 needs compressed air to act on the piston 343 to export the anti-rust paint or lubricant. Under the pushing and retracting action of the piston 343, the anti-rust paint or lubricant in the storage unit 350 can be intermittently exported, and intermittently exported at the same frequency as the pushing and retracting of the piston 343 to perform maintenance on the isolating switch.

[0031] Furthermore, the piston member 343 includes a T-shaped push rod piston 3431 and a T-shaped sleeve piston 3432. The push rod of the T-shaped push rod piston 3431 is inserted into the through-hole of the T-shaped sleeve piston 3432 and maintains a movable and fitting connection. A piston compression spring 3433 is provided between the T-shaped push rod piston 3431 and the T-shaped sleeve piston 3432 to separate and press the two. Under normal conditions, the T-shaped push rod piston 3431 and the T-shaped sleeve piston 3432 are in a state of being pressed by the piston compression spring 3433. The two ends of the piston mounting cavity 342 are respectively abutted by the lower part, and the inner hole of the T-shaped sleeve piston 3432 is correspondingly connected to the inner end of the anti-rust lubrication barrel 345, so that the compressed air pushes the T-shaped push rod piston 3431, and the push rod of the T-shaped push rod piston 3431 extends into the front end of the inner hole of the T-shaped sleeve piston 3432, and the anti-rust paint or lubricant that is lifted to the inner end of the anti-rust lubrication channel 346 by the storage part 350 is pushed out from the inner end of the anti-rust lubrication channel 346 to the front end, completing the discharge process.

[0032] The storage unit 350 includes a container 351 connected to the lower part of the gun body 340, a handle rod 352 is arranged at the lower part of the container 351, the upper end of the handle rod 352 movably passes through the bottom of the container 351 and then extends into the inner cavity of the container 351 and is connected with a push piston 353, the area above the push piston 353 in the container 351 is a storage space, the handle rod 352 is located at one end of the inner cavity of the container 351 and is sleeved with a push compression spring 354, the upper and lower ends of the push compression spring 354 are respectively in contact with the push piston 353 and the bottom of the inner cavity of the container 351; when working, the storage unit 350 is moved to the storage unit 351, and the storage unit 351 is moved to the storage unit 351. 50 is removed from the gun body 340, and the handle rod 352 is pulled down to drive the push piston 353 to move downward to vacate the filling space. After the anti-rust paint or lubricant is loaded into the converted space, the handle rod 352 is kept pulled down to prevent the push piston 353 from rebounding until the filling tank 351 is reconnected and installed with the gun body 340, and the handle rod 352 can be released. After installation, the push piston 353 is lifted up by the push compression spring 354, and the anti-rust paint or lubricant in the filling space is pushed to the rear end of the inner cavity of the anti-rust lubrication barrel 345 through the anti-rust lubrication channel 346, so as to be discharged by the piston member 343.

[0033] In addition, a pressure regulating valve 400 is provided on the gas delivery pipe 200 for adjusting the purge and push gas pressures.

[0034] Working principle example:

[0035] Start the air compressor to store air, first rotate the switching rod 334 in the switching member 330, switch the dual-purpose spray gun 300 to the purge mode, adjust the pressure regulating valve 400 to a suitable purge pressure, hold the dual-purpose spray gun 300 and aim the nozzle at the front end of the purge air outlet gun barrel 341 at the part that needs to be cleaned, press the valve switch 314 to open the purge air flow channel, and purge and clean the corresponding parts of the isolation switch; after cleaning, adjust the pressure regulating valve 400 to a suitable injection pressure, hold the dual-purpose spray gun 300 and aim the nozzle at the front end of the anti-rust lubrication gun barrel 345 at the part that needs maintenance, press the valve switch 314 to open the injection air flow channel, and inject liquid to maintain the corresponding parts of the isolation switch.

[0036] In the description of the invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0037] In the invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the invention according to the specific circumstances.

[0038] Although embodiments of the invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A maintenance device for the rotating part of an isolating switch, characterized in that: It comprises an air compressor (100), an air pipe (200) and a dual-purpose spray gun (300), wherein the input end of the dual-purpose spray gun (300) is connected to the output end of the air compressor (100) through the air pipe (200); The dual-purpose spray gun (300) comprises a switch handle (310), the front end of which is connected to a flow divider (320) for dividing the intake air into two air paths, a switching member (330) for controlling the air to switch between the two air paths and to flow only to one of the air paths is arranged between the flow divider (320) and the front end of the switch handle (310), the front end of which is connected to a gun body (340) for connecting and outputting the two air paths respectively, and the lower end of the gun body (340) is connected to a storage member (350) for storing anti-rust paint and lubricating grease; The switch handle (310) comprises a handle (311), the upper end of the handle (311) is integrally connected with a connecting end cover (312), the lower end of the handle (311) is provided with an air intake pipe (313), the upper end of the air intake pipe (313) extends into the connecting end cover (312) through the inner cavity of the handle (311), a valve switch (314) for controlling the air supply of the air intake pipe (313) is provided on the side of the handle (311), the switching member (330) is arranged in the connecting end cover (312), and a clearance hole (315) is provided on the connecting end cover (312) for exposing the control end of the switching member (330); The flow divider (320) comprises a disc body (321), a rear end surface of the disc body (321) is provided with an arc blind groove (322), two ends of the arc blind groove (322) are respectively provided with a purge air hole (323) and a push air hole (324) penetrating the disc body (321), a front end surface of the disc body (321) is provided with an air path isolation frame (325), and the front ends of the purge air hole (323) and the push air hole (324) are respectively located on the outer side and the inner side of the air path isolation frame (325); The switching member (330) comprises a circular plate body (331), a connecting air hole (332) for free air flow is arranged below the circular plate body (331), a circular arc boss (333) is integrally arranged at the front end of the circular plate body (331), the circular arc boss (333) is embedded in the circular arc blind groove (322), and the circular plate body (331) rotates to cover the purge air hole (323) or the push air hole (324), and a switching rod (334) is connected to the middle of the rear end surface of the circular plate body (331), and the rear end of the switching rod (334) extends out from the clearance hole (315); A purge air outlet gun barrel (341) connected to the purge air hole (323) is arranged on the side of the gun body (340); a piston mounting chamber (342) is arranged inside the gun body (340), and a piston member (343) for pushing out anti-rust paint or grease is arranged in the piston mounting chamber (342); a pushing connecting hole (344) is arranged at the rear end of the piston mounting chamber (342); the air path isolation frame (325) connects the pushing air hole (324) with the pushing connecting hole (344); a rust-proof lubricating gun barrel (345) connected to the piston mounting chamber (342) is arranged at the front end of the gun body (340); a connecting seat (347) is arranged below the gun body (340); a rust-proof lubricating gun barrel (345) is arranged inside the connecting seat (347) for connecting a storage member (350) with the rear end of the rust-proof lubricating gun barrel (345).

2. The maintenance device for the rotating part of the isolating switch according to claim 1 is characterized in that: The piston member (343) comprises a T-shaped push rod piston (3431) and a T-shaped sleeve piston (3432), wherein the push rod of the T-shaped push rod piston (3431) is inserted into the through circular hole of the T-shaped sleeve piston (3432) and maintains a movable and fitting connection, and a piston compression spring (3433) is provided between the T-shaped push rod piston (3431) and the T-shaped sleeve piston (3432) to separate and press the two.

3. The maintenance device for the rotating part of the isolating switch according to claim 1 is characterized in that: The storage element (350) comprises a container (351) connected to the bottom of the gun body (340), a handle rod (352) is arranged below the container (351), the upper end of the handle rod (352) movably passes through the bottom of the container (351) and then extends into the inner cavity of the container (351) and is connected to a push piston (353), the area above the push piston (353) in the container (351) is a storage space, and a push compression spring (354) is sleeved on the outer wall of one end of the handle rod (352) located in the inner cavity of the container (351), and the upper and lower ends of the push compression spring (354) are respectively in contact with the push piston (353) and the bottom of the inner cavity of the container (351).

4. The maintenance device for the rotating part of the isolating switch according to claim 1 is characterized in that: The gas transmission pipe (200) is provided with a pressure regulating valve (400).

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