High-voltage vacuum circuit breaker

Abstract

The invention belongs to the technical field of circuit breakers, and discloses a high-voltage vacuum circuit breaker, which comprises a circuit breaker main body, and is characterized in that the circuit breaker main body comprises a left side mounting plate and a right side mounting plate; a cabinet; the positioning assembly comprises a positioning plate fixedly arranged on the inner bottom wall of the cabinet and plug boards fixedly arranged at the bottom ends of the left side mounting plate and the right side mounting plate respectively, and the upper surface of the positioning plate is provided with insertion grooves matched with the two plug boards and slidably connected with the surfaces of the two plug boards respectively. According to the invention, through the positioning assembly, when the circuit breaker main body is installed, the rotating block can be rotated to drive the two groups of locking columns to move into the locking holes in the two plug boards, so that effective fixation of the plug boards and the inner walls of the insertion grooves is realized, and rapid installation and positioning of the circuit breaker main body are further realized; the top of the left mounting plate and the top of the right mounting plate can be effectively fixed and limited, so that the stability of the circuit breaker main body after mounting is effectively ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a high-voltage vacuum circuit breaker. Background Art

[0002] Vacuum circuit breakers are named for their arc-extinguishing medium and the insulating medium in the contact gap after arc extinguishing, both of which are high vacuum. They are compact, lightweight, suitable for frequent operation, and require no maintenance during arc extinguishing, making them widely used in distribution networks. Vacuum circuit breakers are indoor power distribution devices in 3-10kV, 50Hz three-phase AC systems. They are used to protect and control electrical equipment in industrial and mining enterprises, power plants, and substations. They are particularly suitable for applications requiring oil-free operation, minimal maintenance, and frequent operation. Circuit breakers can be deployed in central cabinets, double-layer cabinets, and fixed cabinets to control and protect high-voltage electrical equipment.

[0003] Currently, existing vacuum circuit breakers include a closing and opening drive unit, as well as electric energy storage, manual energy storage, and manual closing and opening. During installation, the side panels are bolted to the cabinet. This requires manual tools to tighten multiple bolts within the confined cabinet, which is inconvenient and prone to bolts falling or being lost, seriously impacting installation efficiency. Summary of the Invention

[0004] The present invention aims to solve the problems existing in the prior art and provides the following technical solutions: High voltage vacuum circuit breaker, including: A circuit breaker body, comprising a left mounting plate and a right mounting plate, and closing and opening drive units respectively disposed between the left and right mounting plates for protecting the circuit and controlling the circuit switch, and a closing electromagnet and an opening electromagnet corresponding to the closing and opening drive units, respectively, and a closing and opening switching auxiliary switch disposed between the left and right mounting plates. The outer surfaces of the left and right mounting plates are provided with electric energy storage, manual energy storage, manual closing, and manual opening. The outer surfaces of the left and right mounting plates are respectively provided with an energy storage switching microswitch, a counter, a closing and opening indicator, and an energy storage indicator; A cabinet, which is used to place the circuit breaker body; A positioning assembly is used to fix the circuit breaker body placed inside the cabinet. The positioning assembly includes a positioning plate fixed to the bottom wall of the cabinet, and plug-in plates fixed to the bottom ends of the left mounting plate and the right mounting plate respectively. The upper surface of the positioning plate is provided with insertion grooves that are adapted to the two plug-in plates and are respectively slidably connected to the surfaces of the two plug-in plates.

[0005] As an improvement to the above technical solution, a rectangular cavity is provided inside the positioning plate, and the inner wall of the rectangular cavity is slidably provided on the sliding plate, and two sets of locking columns are symmetrically fixed on the surface of the sliding plate, and a sliding hole is provided on the inner side wall of the rectangular cavity, which passes through one insertion groove and extends into the inside of the other insertion groove for sliding the locking column, and locking holes are provided on the side surfaces of the two plug-in plates that are adapted to the locking columns, and a rotating block is provided on the outer surface of the cabinet for driving the sliding plate to move; A threaded column is rotatably provided on the inner wall of the rectangular cavity, and a threaded hole is provided on the side of the sliding plate for threaded connection with the outer surface of the threaded column. One end of the threaded column extends to the outer surface of the cabinet, and a rotating block is provided at the end of the threaded column.

[0006] As an improvement of the above technical solution, the positioning assembly also includes fixing plates respectively fixed on the top of the left mounting plate and the right mounting plate, and rectangular grooves corresponding to the fixing plates are opened on the top wall of the cabinet, and a lifting plate is slidably provided on the inner wall of the rectangular groove. Two groups of positioning columns corresponding to the two fixing plates are fixed on the lower surface of the lifting plate, and a positioning groove adapted to the positioning columns is opened on the upper surface of the fixing plate.

[0007] As an improvement of the above technical solution, bidirectional screws are rotatably provided on the inner walls of both sides of the rectangular groove, and two symmetrical moving blocks are slidably provided on the inner top wall of the rectangular groove, and the surfaces of the two moving blocks are provided with threaded holes that are threadedly connected to the surfaces of the bidirectional screws.

[0008] As an improvement of the above technical solution, a rotating groove is provided at the bottom end of the moving block, and a rotating frame corresponding to the moving block is fixed on the upper surface of the lifting plate. A top plate is provided on the inner wall of the rotating groove through a rotating shaft, and the bottom end of the top plate is rotatably connected to the inner wall of the rotating frame through a rotating shaft.

[0009] As an improvement of the above technical solution, a vertical cavity is opened inside the cabinet body of the cabinet, and a vertical rod is rotatably provided on the inner top wall of the vertical cavity. One end of the threaded column and the bidirectional lead screw extend into the interior of the vertical cavity. The surface of the threaded column and the bottom end of the vertical rod are fixed with a first bevel gear that meshes with each other, and the surface of the vertical rod and the end of the bidirectional lead screw are fixed with a second bevel gear that meshes with each other.

[0010] As an improvement to the above technical solution, a lubrication assembly for lubricating the two first bevel gears and the two second bevel gears is provided inside the vertical cavity.

[0011] As an improvement of the above technical solution, the lubrication assembly includes a vertical pipe fixed on the inner side wall of the vertical cavity, and two atomizing nozzles embedded in the surface of the vertical pipe and connected to the vertical pipe, and the two atomizing nozzles correspond to the first bevel gear and the second bevel gear respectively.

[0012] As an improvement of the above technical solution, the lubrication assembly also includes a rectangular box fixed on the outer surface of the cabinet, and the inner walls of the rectangular box are respectively provided with two independent storage chambers and drive chambers, the interior of the storage chamber stores lubricating oil, and the inner top wall of the storage chamber is embedded with an oil pipe, one end of the oil pipe extends to the inner bottom of the storage chamber, and the other end of the oil pipe extends to the interior of the vertical pipe, and a filling pipe for adding lubricating oil to the interior of the storage chamber is provided on the back of the rectangular box, and a sealing plug is provided at the end of the filling pipe, the end of the threaded column extends to the interior of the drive chamber and is fixed with a reciprocating screw, one end of the reciprocating screw extends to the outer surface of the rectangular box, and the rotating block is fixed at the end of the reciprocating screw.

[0013] As an improvement of the above technical solution, a rectangular plate is slidingly provided on the inner wall of the driving chamber, and a threaded hole is provided on the surface of the rectangular plate that is threadedly connected to the outer surface of the reciprocating screw. A press-type air pump is fixed on the side of the rectangular plate, and the other end of the press-type air pump is fixedly connected to the inner wall of the driving chamber. The ends of the press-type air pump are respectively provided with a pressure pipe and an air intake pipe, and the top of the pressure pipe extends to the interior of the storage chamber, and a filter is provided inside the air intake pipe. The surfaces of the pressure pipe and the air intake pipe are respectively provided with an inflation one-way valve and an air intake one-way valve, and the inner wall of the driving chamber is provided with an air vent extending to the back of the rectangular box, and the inner side wall of the vertical chamber is provided with an oil drain pipe extending to the outer surface of the cabinet, and the surface of the oil drain pipe is provided with an oil drain valve.

[0014] As an improvement of the above technical solution, the interior of the rectangular cavity is provided with a cleaning component for cleaning the dust inside the insertion slot before fixing the plug-in board, and the cleaning component includes two symmetrical folding and telescopic airbags fixedly mounted on the inner wall of the rectangular cavity, and the pressing end of the folding and telescopic airbags is fixedly connected to the surface of the sliding plate, and the inner wall of the folding and telescopic airbags is fixedly provided with a reset spring, and the inner wall of the rectangular cavity is embedded with connecting tubes extending to the inside of the two insertion slots respectively, and the inner wall of the rectangular cavity is provided with a rectangular blowing groove connected to the connecting tube, the ends of the two folding and telescopic airbags are provided with Y-shaped inflation tubes connected to the connecting tube, and the ends of the folding and telescopic airbags are also provided with ventilation tubes extending to the outer surface of the positioning plate, and the surfaces of the Y-shaped inflation tube and the ventilation tube are both provided with one-way valves.

[0015] Beneficial effects of the present invention: 1. The present invention provides a positioning assembly. When installing the circuit breaker body, the rotating block can be rotated to drive the two sets of locking posts to move into the locking holes on the two plug-in plates, thereby effectively fixing the plug-in plates to the inner walls of the insertion slots, thereby achieving rapid installation and positioning of the circuit breaker body. At the same time, during the rotation of the threaded posts, the tops of the left and right mounting plates can be effectively fixed and limited, thereby effectively ensuring the stability of the circuit breaker body after installation and enabling rapid installation of the circuit breaker body in a narrow space.

[0016] 2. The present invention provides a lubrication assembly. In the process of quickly fixing the circuit breaker body by driving the threaded column through the rotating block, the rotation of the rotating block can drive the reciprocating screw to rotate, and the rotation of the reciprocating screw can drive the rectangular plate to move back and forth. The back and forth movement of the rectangular plate realizes continuous pressing of the push-type air pump, so that the push-type air pump can continuously reciprocate to inflate the interior of the storage chamber, so that the lubricating oil inside the storage chamber can enter the vertical pipe through the oil pipeline and be sprayed to the first bevel gear and the second bevel gear respectively through two atomizing nozzles, thereby achieving the purpose of effectively lubricating the two meshing first bevel gears and the two meshing second bevel gears.

[0017] 3. The present invention provides a cleaning assembly. Before the circuit breaker body and the cabinet are installed, the rotating block can be rotated to drive the threaded column to rotate. The rotation of the threaded column drives the sliding plate to move. The movement of the sliding plate realizes the compression of the two foldable telescopic airbags, so that the air in the two foldable telescopic airbags can enter the interior of the connecting pipe through the Y-shaped inflation tube and enter the rectangular blowing grooves on the inner walls of the two insertion slots through the connecting tube. The air flow can automatically blow out the dust on the inner wall of the insertion slot through the rectangular blowing groove, thereby achieving the purpose of quickly cleaning the inner wall of the insertion slot, preventing the dust and debris remaining in the insertion slot from affecting the position of the plug-in board in the insertion slot, and then making the locking hole on the plug-in board correspond to the locking column, thereby improving the installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the circuit breaker body of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the cabinet of the present invention; Figure 4 This is a schematic diagram of the top cross-sectional structure of the positioning plate of the present invention; Figure 5 This is a schematic diagram of the front cross-section structure of the cabinet of the present invention; Figure 6 For the present invention Figure 5 A in the middle is an enlarged structural diagram; Figure 7For the present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 8 For the present invention Figure 5 The enlarged structural diagram at C in the middle; Figure 9 This is a schematic diagram of the top cross-sectional structure of the positioning plate in the third embodiment of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point D in the middle.

[0019] In the picture: 100. Circuit breaker body; 101. Left mounting plate; 102. Right mounting plate; 200, cabinet; 300, positioning assembly; 301, positioning plate; 302, plug-in plate; 303, insertion slot; 304, rectangular cavity; 305, sliding plate; 306, locking column; 307, locking hole; 308, rotating block; 309, threaded column; 3010, fixed plate; 3011, lifting plate; 3012, positioning column; 3013, positioning slot; 3014, bidirectional lead screw; 3015, moving block; 3016, rotating frame; 3017, top plate; 3018, vertical cavity; 3019, vertical rod; 3020, first bevel gear; 3021, second bevel gear; 400, lubrication assembly; 401, vertical pipe; 402, atomizing nozzle; 403, rectangular box; 404, storage chamber; 405, drive chamber; 406, oil delivery pipe; 407, reciprocating screw; 408, rectangular plate; 409, push-type air pump; 4010, pressurizing pipe; 4011, suction pipe; 500, cleaning assembly; 501, foldable and telescopic airbag; 502, connecting tube; 503, rectangular blowing slot; 504, Y-shaped inflation tube. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] Example 1

[0022] Please refer to Figures 1-8 As shown, the present invention provides a high-voltage vacuum circuit breaker, comprising: The circuit breaker body 100 includes a left mounting plate 101 and a right mounting plate 102, and closing and opening drive units respectively arranged between the left mounting plate 101 and the right mounting plate 102 for protecting the circuit and controlling the circuit switch. In addition, a closing electromagnet and an opening electromagnet corresponding to the closing and opening drive units, respectively, and a closing and opening switching auxiliary switch are arranged between the left mounting plate 101 and the right mounting plate 102. The closing electromagnet and the opening electromagnet correspond to the closing and opening drive units, respectively, and they drive the operation of the drive units through electromagnetic force. When the closing electromagnet is energized, a strong electromagnetic attraction is generated, pulling the closing drive mechanism to achieve a fast and reliable closing operation. After receiving the opening signal, the opening electromagnet also uses electromagnetic force to quickly push the opening drive mechanism, causing the contacts to quickly separate. The use of electromagnets makes the closing and opening operations of the circuit breaker more sensitive and accurate, greatly shortens the operation time, improves the response speed of the circuit breaker, and can cut off the fault current in a very short time, effectively protecting the circuit and equipment.

[0023] Specifically, the closing and opening drive units of the circuit breaker body 100 cooperate with the closing electromagnet and the opening electromagnet, and rely on electromagnetic force drive to achieve fast, sensitive and accurate closing and opening operations. Compared with the existing technology, the operation time is greatly shortened, and the fault current can be cut off in a very short time. The protection capability of the circuit and equipment is stronger, which greatly improves the reliability and safety of the power system.

[0024] The outer surfaces of the left mounting plate 101 and the right mounting plate 102 are provided with electric energy storage, manual energy storage, manual closing and manual opening; The circuit breaker body 100 has two energy storage modes: electric energy storage and manual energy storage. Electric energy storage is easy to operate and highly efficient, making it suitable for routine operation scenarios. Manual energy storage ensures that the circuit breaker has sufficient operating energy when the electric energy storage fails or when special operation is required. The two complement each other and greatly improve the reliability and flexibility of the circuit breaker compared to existing technologies, ensuring normal operation in various complex situations. The outer surfaces of the left mounting plate 101 and the right mounting plate 102 are respectively provided with: The energy storage switching micro switch, in which the closing and opening switching auxiliary switch of the circuit breaker body 100 can monitor the closing and opening status of the circuit breaker in real time and accurately, and promptly feed back the status signal to the control system, providing a reliable basis for the automatic control and remote monitoring of the power system. In addition, the energy storage switching micro switch detects the energy storage status in real time; Counter, wherein the counter of the circuit breaker body 100 accurately records the number of closing and opening operations, so that the operation and maintenance personnel can clearly understand the usage frequency and service life of the circuit breaker, and thus formulate a more reasonable inspection and maintenance plan; Closing and opening indication and energy storage indication, among which the closing and opening indication and energy storage indication devices intuitively display the working status. These functions work together, and compared with existing technologies, they significantly improve the intelligence level and management efficiency of power system operation, and reduce the risk of operational errors.

[0025] The cabinet 200 is used to place the circuit breaker body 100; Specifically, through the above technical solution, in the prior art, the mounting plates of many circuit breakers only serve a simple supporting and fixing function, and have limited protection capabilities for internal components, making it difficult to effectively resist erosion in harsh environments. The arrangement of the left mounting plate 101 and the right mounting plate 102 of the circuit breaker body 100 and the cabinet 200 not only firmly supports the internal components, but also jointly constructs a solid shell that can effectively block interference from external factors such as dust and moisture. Compared with traditional designs, the protection level of internal precision drive units, electromagnets and other components is greatly improved, the service life of the circuit breaker is significantly extended, and the failure rate caused by environmental factors is reduced.

[0026] The positioning assembly 300 is used to fix the circuit breaker body 100 placed inside the cabinet 200. The positioning assembly 300 includes a positioning plate 301 fixed to the bottom wall of the cabinet 200, and plug-in plates 302 fixed to the bottom ends of the left mounting plate 101 and the right mounting plate 102 respectively. The upper surface of the positioning plate 301 is provided with insertion slots 303 that are adapted to the two plug-in plates 302 and are respectively slidably connected to the surfaces of the two plug-in plates 302.

[0027] like Figure 4 and Figure 5 As shown, a rectangular cavity 304 is provided inside the positioning plate 301, and the inner wall of the rectangular cavity 304 is slidably provided on the sliding plate 305, and two groups of locking columns 306 are symmetrically fixed on the surface of the sliding plate 305. The inner wall of the rectangular cavity 304 is provided with a sliding hole that passes through one insertion groove 303 and extends to the inside of the other insertion groove 303 for the locking column 306 to slide, and the sides of the two plug-in plates 302 are provided with locking holes 307 that are compatible with the locking columns 306. The outer surface of the cabinet 200 is provided with a rotating block 308 for driving the sliding plate 305 to move; a threaded column 309 is rotatably provided on the inner wall of the rectangular cavity 304, and a threaded hole threadedly connected to the outer surface of the threaded column 309 is provided on the side of the sliding plate 305. One end of the threaded column 309 extends to the outer surface of the cabinet 200, and the rotating block 308 is provided at the end of the threaded column 309.

[0028] With the above solution, the rotation of the threaded column 309 can drive the sliding plate 305 to automatically move, thereby achieving the purpose of automatically inserting the locking column 306 into the locking hole 307 .

[0029] like Figure 4 and Figure 5 As shown, the positioning assembly 300 also includes a fixing plate 3010 respectively fixed on the top of the left mounting plate 101 and the right mounting plate 102, and a rectangular groove corresponding to the fixing plate 3010 is opened on the top wall of the cabinet 200, and a lifting plate 3011 is slidingly provided on the inner wall of the rectangular groove. Two groups of positioning columns 3012 corresponding to the two fixing plates 3010 are fixed on the lower surface of the lifting plate 3011, and a positioning groove 3013 adapted to the positioning column 3012 is opened on the upper surface of the fixing plate 3010.

[0030] By adopting the above solution, the lifting plate 3011 can be moved downward to drive the positioning column 3012 to be inserted into the positioning slot 3013 on the fixing plate 3010, thereby effectively fixing the top of the left mounting plate 101 and the right mounting plate 102 to the cabinet 200.

[0031] like Figure 5 、 Figure 7 and Figure 8 As shown, a bidirectional lead screw 3014 is rotatably provided on the inner walls of both sides of the rectangular groove, and two symmetrical moving blocks 3015 are slidably provided on the inner top wall of the rectangular groove. The surfaces of the two moving blocks 3015 are provided with threaded holes that are threadedly connected to the surface of the bidirectional lead screw 3014.

[0032] By adopting the above solution, the two moving blocks 3015 can be driven to move to both sides simultaneously through the rotation of the bidirectional lead screw 3014, thereby automatically pushing the lifting plate 3011 through the top plate 3017.

[0033] like Figure 6 and Figure 7 As shown, a rotating groove is provided at the bottom end of the moving block 3015, and a rotating frame 3016 corresponding to the moving block 3015 is fixed on the upper surface of the lifting plate 3011. A top plate 3017 is provided on the inner wall of the rotating groove through a rotating shaft, and the bottom end of the top plate 3017 is rotatably connected to the inner wall of the rotating frame 3016 through a rotating shaft.

[0034] By adopting the above solution, the top end of the top plate 3017 can be rotatably connected to the bottom end of the moving block 3015 , and the bottom end of the top plate 3017 can be rotatably connected to the upper surface of the lifting plate 3011 .

[0035] like Figure 6 and Figure 7As shown, a vertical cavity 3018 is opened inside the cabinet body of the cabinet 200, and a vertical rod 3019 is rotatably provided on the inner top wall of the vertical cavity 3018. One end of the threaded column 309 and the bidirectional lead screw 3014 both extend into the interior of the vertical cavity 3018. The surface of the threaded column 309 and the bottom end of the vertical rod 3019 are both fixed with a first bevel gear 3020 that meshes with each other, and the surface of the vertical rod 3019 and the end of the bidirectional lead screw 3014 are both fixed with a second bevel gear 3021 that meshes with each other.

[0036] By adopting the above solution, the vertical rod 3019 can be driven to rotate by the rotation of the threaded column 309 and under the action of the two first bevel gears 3020. At the same time, the vertical rod 3019 can drive the bidirectional screw 3014 to rotate automatically under the action of the two second bevel gears 3021 when rotating.

[0037] In this embodiment, by providing a positioning assembly 300, when the circuit breaker body 100 is installed, the circuit breaker body 100 can be slid into the two insertion slots 303 on the bottom positioning plate 301 in the cabinet 200 through the two plug-in plates 302, and then the rotating block 308 is rotated. The rotation of the rotating block 308 drives the threaded column 309 to rotate, and the rotation of the threaded column 309 drives the sliding plate 305 to move. The movement of the sliding plate 305 drives the two sets of locking columns 306 to move into the locking holes 307 on the two plug-in plates 302, thereby effectively fixing the plug-in plates 302 and the inner walls of the insertion slots 303, thereby realizing rapid installation and positioning of the circuit breaker body 100. At the same time, during the rotation of the threaded column 309, The two first bevel gears 3020 drive the vertical rod 3019 to rotate. The rotation of the vertical rod 3019 drives the bidirectional screw 3014 to rotate under the action of the two second bevel gears 3021. The rotation of the bidirectional screw 3014 drives the two moving blocks 3015 to move to both sides at the same time, thereby pushing the lifting plate 3011 downward through the top plate 3017, thereby driving the two groups of positioning columns 3012 on the lower surface of the lifting plate 3011 to insert into the positioning grooves 3013 on the surface of the fixed plate 3010 on the left mounting plate 101 and the right mounting plate 102, respectively, to achieve effective fixed limit of the top of the left mounting plate 101 and the right mounting plate 102, thereby effectively ensuring the stability of the circuit breaker body 100 after installation.

[0038] Example 2

[0039] Based on the first embodiment, Figures 3 to 6 And the difference from the first embodiment is that: Figure 5 and Figure 6 As shown, a lubrication assembly 400 is provided inside the vertical cavity 3018 for lubricating the two first bevel gears 3020 and the two second bevel gears 3021 respectively.

[0040] By adopting the above solution, the two first bevel gears 3020 and the second bevel gear 3021 can be effectively lubricated by the lubrication assembly 400, thereby increasing the service life.

[0041] like Figure 5 and Figure 6 As shown, the lubrication assembly 400 includes a vertical pipe 401 fixed to the inner wall of the vertical cavity 3018, and two atomizing nozzles 402 embedded in the surface of the vertical pipe 401 and connected to the vertical pipe 401, and the two atomizing nozzles 402 correspond to the first bevel gear 3020 and the second bevel gear 3021 respectively.

[0042] By adopting the above solution, the lubricating oil can be sprayed out through the atomizing nozzle 402 on the vertical pipe 401 to accurately lubricate the first bevel gear 3020 and the second bevel gear 3021 .

[0043] like Figure 5 and Figure 6 As shown, the lubrication assembly 400 also includes a rectangular box 403 fixed on the outer surface of the cabinet 200, and the inner walls of the rectangular box 403 are respectively provided with two independent storage chambers 404 and a drive chamber 405, the storage chamber 404 stores lubricating oil, and the inner top wall of the storage chamber 404 is embedded with an oil pipe 406, one end of the oil pipe 406 extends to the inner bottom of the storage chamber 404, and the other end of the oil pipe 406 extends to the inside of the vertical pipe 401, and the back of the rectangular box 403 is provided with a filling pipe for adding lubricating oil to the inside of the storage chamber 404, and a sealing plug is provided at the end of the filling pipe, the end of the threaded column 309 extends to the inside of the drive chamber 405 and is fixed with a reciprocating screw 407, one end of the reciprocating screw 407 extends to the outer surface of the rectangular box 403, and the rotating block 308 is fixed at the end of the reciprocating screw 407.

[0044] By adopting the above solution, the lubricating oil can be stored in the storage chamber 404 and simultaneously can be delivered to the vertical pipe 401 through the oil delivery pipe 406 .

[0045] like Figure 5 and Figure 6As shown, a rectangular plate 408 is slidingly provided on the inner wall of the driving chamber 405, and a threaded hole is opened on the surface of the rectangular plate 408 which is threadedly connected to the outer surface of the reciprocating screw 407, a press-type air pump 409 is fixed on the side of the rectangular plate 408, and the other end of the press-type air pump 409 is fixedly connected to the inner wall of the driving chamber 405, and a pressure pipe 4010 and an air suction pipe 4011 are respectively provided at the ends of the press-type air pump 409, and the top of the pressure pipe 4010 extends to the interior of the storage chamber 404, and a filter is provided inside the air suction pipe 4011, and an inflation one-way valve and an air suction one-way valve are respectively provided on the surfaces of the pressure pipe 4010 and the air suction pipe 4011, and an air vent extending to the back of the rectangular box 403 is provided on the inner wall of the driving chamber 405, and an oil drain pipe extending to the outer surface of the cabinet 200 is provided on the inner side wall of the vertical chamber 3018, and an oil drain valve is provided on the surface of the oil drain pipe.

[0046] By adopting the above solution, the rectangular plate 408 can be driven to move back and forth automatically by the rotation of the reciprocating screw 407, thereby achieving the purpose of continuously reciprocating pressing of the push-type air pump 409, and further achieving the purpose of continuously pressurizing the interior of the storage chamber 404.

[0047] In this embodiment, by providing a lubrication assembly 400, in the process of quickly fixing the circuit breaker body 100 by driving the threaded column 309 by the rotating block 308, the rotation of the rotating block 308 can drive the reciprocating screw 407 to rotate, and the rotation of the reciprocating screw 407 can drive the rectangular plate 408 to move back and forth. The back and forth movement of the rectangular plate 408 realizes continuous pressing of the push-type air pump 409, so that the push-type air pump 409 can continuously reciprocate to inflate the interior of the storage chamber 404, so that the lubricating oil inside the storage chamber 404 can enter the vertical pipe 401 through the oil delivery pipe 406, and be sprayed to the first bevel gear 3020 and the second bevel gear 3021 respectively through the two atomizing nozzles 402, thereby achieving the purpose of effectively lubricating the two meshing first bevel gears 3020 and the two meshing second bevel gears 3021.

[0048] Example 3

[0049] Based on the first embodiment, Figure 9 and Figure 10 , and the difference from the first embodiment is that: The interior of the rectangular cavity 304 is provided with a cleaning component 500 for cleaning dust inside the insertion slot 303 before fixing the plug-in board 302. The cleaning component 500 includes two symmetrical foldable telescopic airbags 501 fixed on the inner wall of the rectangular cavity 304, and the pressing end of the foldable telescopic airbag 501 is fixedly connected to the surface of the sliding plate 305. The inner wall of the foldable telescopic airbag 501 is fixed with a reset spring. The inner wall of the rectangular cavity 304 is embedded with connecting pipes 502 extending to the inside of the two insertion slots 303 respectively, and the inner wall of the rectangular cavity 304 is provided with a rectangular blowing groove 503 connected to the connecting pipe 502. The ends of the two foldable telescopic airbags 501 are provided with Y-shaped inflation tubes 504 connected to the connecting tube 502, and the end of the foldable telescopic airbag 501 is also provided with a ventilation tube extending to the outer surface of the positioning plate 301. The surfaces of the Y-shaped inflation tube 504 and the ventilation tube are both provided with one-way valves.

[0050] In this embodiment, by providing the cleaning assembly 500, before installing the circuit breaker body 100 and the cabinet 200, the rotating block 308 can be rotated to rotate the threaded column 309. The rotation of the threaded column 309 drives the sliding plate 305 to move. The movement of the sliding plate 305 compresses the two foldable telescopic airbags 501, so that the air in the two foldable telescopic airbags 501 can enter the interior of the connecting tube 502 through the Y-shaped inflation tube 504, and then enter the rectangular blowing grooves 503 on the inner walls of the two insertion slots 303 through the connecting tube 502. The air flow can automatically blow out dust on the inner walls of the insertion slots 303 through the rectangular blowing grooves 503, thereby quickly cleaning the inner walls of the insertion slots 303, preventing dust and debris remaining in the insertion slots 303 from affecting the position of the plug-in board 302 in the insertion slot 303, and further allowing the locking holes 307 on the plug-in board 302 to align with the locking columns 306, thereby improving the installation accuracy.

[0051] The working principle and use process of the present invention: Before installing the circuit breaker body 100 and the cabinet 200, the rotating block 308 can be rotated to drive the threaded column 309 to rotate. The rotation of the threaded column 309 drives the sliding plate 305 to move. The movement of the sliding plate 305 realizes the compression of the two foldable telescopic air bags 501, so that the air in the two foldable telescopic air bags 501 can enter the interior of the connecting pipe 502 through the Y-shaped inflation tube 504, and enter the rectangular blowing grooves 503 on the inner walls of the two insertion slots 303 through the connecting pipe 502, so that the air flow can automatically blow out the dust on the inner wall of the insertion slot 303 through the rectangular blowing grooves 503, thereby quickly cleaning the inner wall of the insertion slot 303, preventing the dust and debris remaining in the insertion slot 303 from affecting the position of the plug-in board 302 in the insertion slot 303, and further making the locking hole 307 on the plug-in board 302 correspond to the locking column 306, thereby improving the installation accuracy; When installing the circuit breaker body 100, the circuit breaker body 100 can be slid into the two insertion slots 303 on the bottom positioning plate 301 in the cabinet 200 through the two plug-in plates 302. Then, the rotating block 308 is rotated. The rotation of the rotating block 308 drives the threaded column 309 to rotate. The rotation of the threaded column 309 drives the sliding plate 305 to move. The movement of the sliding plate 305 drives the two sets of locking columns 306 to move into the locking holes 307 on the two plug-in plates 302, thereby effectively fixing the plug-in plates 302 to the inner walls of the insertion slots 303. Thus, the circuit breaker body 100 can be quickly installed and positioned. At the same time, during the rotation of the threaded column 309, the vertical rod 3019 can be driven to rotate under the action of the two first bevel gears 3020. The rotation of the vertical rod 3019 drives the bidirectional screw 3014 to rotate under the action of the two second bevel gears 3021. The rotation of the bidirectional screw 3014 drives the two moving blocks 3015 to move to both sides at the same time, thereby pushing the lifting plate 3011 downward through the top plate 3017, thereby driving the two sets of positioning columns 3015 on the lower surface of the lifting plate 3011. 12 are respectively inserted into the positioning grooves 3013 on the surface of the fixing plate 3010 on the left mounting plate 101 and the right mounting plate 102, thereby effectively fixing and limiting the top of the left mounting plate 101 and the right mounting plate 102, thereby effectively ensuring the stability of the circuit breaker body 100 after installation. At the same time, when the rotating block 308 drives the threaded column 309 to quickly fix the circuit breaker body 100, the rotation of the rotating block 308 can drive the reciprocating screw 407 to rotate, and the rotation of the reciprocating screw 407 can drive the rectangular plate 408 The rectangular plate 408 moves back and forth to realize continuous pressing on the push-type air pump 409, so that the push-type air pump 409 can continuously and reciprocally inflate the interior of the storage chamber 404, so that the lubricating oil inside the storage chamber 404 can enter the vertical pipe 401 through the oil pipe 406, and be sprayed out to the first bevel gear 3020 and the second bevel gear 3021 respectively through the two atomizing nozzles 402, thereby achieving the purpose of effectively lubricating the two meshing first bevel gears 3020 and the two meshing second bevel gears 3021.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. High voltage vacuum circuit breaker, characterized in that, include: A circuit breaker body (100), the circuit breaker body (100) comprising a left mounting plate (101) and a right mounting plate (102), and closing and opening drive units respectively arranged between the left mounting plate (101) and the right mounting plate (102) for protecting the circuit and controlling the circuit switch, and a closing electromagnet and an opening electromagnet respectively corresponding to the closing and opening drive units, as well as a closing and opening switching auxiliary switch are arranged between the left mounting plate (101) and the right mounting plate (102), and the outer surfaces of the left mounting plate (101) and the right mounting plate (102) are provided with electric energy storage, manual energy storage, manual closing and manual opening, and the outer surfaces of the left mounting plate (101) and the right mounting plate (102) are respectively provided with an energy storage switching microswitch, a counter, a closing and opening indication and an energy storage indication; A cabinet (200) for placing the circuit breaker body (100); A positioning assembly (300) is used to fix a circuit breaker body (100) placed inside a cabinet (200), the positioning assembly (300) comprising a positioning plate (301) fixed to the inner bottom wall of the cabinet (200), and plug-in plates (302) respectively fixed to the bottom ends of the left mounting plate (101) and the right mounting plate (102), wherein the upper surface of the positioning plate (301) is provided with insertion slots (303) adapted to the two plug-in plates (302) and respectively slidably connected to the surfaces of the two plug-in plates (302).

2. The high-voltage vacuum circuit breaker according to claim 1, characterized in that: A rectangular cavity (304) is provided inside the positioning plate (301), and the inner wall of the rectangular cavity (304) is slidably provided on the sliding plate (305), and two groups of locking columns (306) are symmetrically fixed on the surface of the sliding plate (305), and a sliding hole is provided on the inner side wall of the rectangular cavity (304) that penetrates one insertion groove (303) and extends to the inside of another insertion groove (303) for sliding the locking column (306), and locking holes (307) that are compatible with the locking columns (306) are provided on the side surfaces of the two plug-in plates (302), and a rotating block (308) for driving the sliding plate (305) to move is provided on the outer surface of the cabinet (200); A threaded column (309) is rotatably provided on the inner wall of the rectangular cavity (304), and a threaded hole threadedly connected to the outer surface of the threaded column (309) is provided on the side of the sliding plate (305), one end of the threaded column (309) extends to the outer surface of the cabinet (200), and a rotating block (308) is provided at the end of the threaded column (309).

3. The high-voltage vacuum circuit breaker according to claim 2, characterized in that: The positioning assembly (300) further comprises a fixing plate (3010) fixedly mounted on the top of the left mounting plate (101) and the top of the right mounting plate (102), respectively, and a rectangular groove corresponding to the fixing plate (3010) provided on the inner top wall of the cabinet (200), wherein a lifting plate (3011) is slidably provided on the inner wall of the rectangular groove, two groups of positioning columns (3012) corresponding to the two fixing plates (3010) are fixedly mounted on the lower surface of the lifting plate (3011), and a positioning groove (3013) adapted to the positioning columns (3012) is provided on the upper surface of the fixing plate (3010).

4. The high-voltage vacuum circuit breaker according to claim 3, characterized in that: Two-way lead screws (3014) are rotatably provided on the inner walls of both sides of the rectangular groove, and two symmetrical moving blocks (3015) are slidably provided on the inner top wall of the rectangular groove. The surfaces of the two moving blocks (3015) are provided with threaded holes that are threadedly connected to the surfaces of the two-way lead screws (3014).

5. The high-voltage vacuum circuit breaker according to claim 4, characterized in that: A rotation groove is provided at the bottom end of the moving block (3015), and a rotation frame (3016) corresponding to the moving block (3015) is fixedly provided on the upper surface of the lifting plate (3011). A top plate (3017) is provided on the inner wall of the rotation groove via a rotating shaft, and the bottom end of the top plate (3017) is rotatably connected to the inner wall of the rotation frame (3016) via a rotating shaft.

6. The high-voltage vacuum circuit breaker according to claim 5, characterized in that: A vertical cavity (3018) is provided inside the cabinet body of the cabinet (200), and a vertical rod (3019) is rotatably provided on the inner top wall of the vertical cavity (3018), and one end of the threaded column (309) and the bidirectional lead screw (3014) both extend into the interior of the vertical cavity (3018), and a first bevel gear (3020) that meshes with each other is fixedly provided on the surface of the threaded column (309) and the bottom end of the vertical rod (3019), and a second bevel gear (3021) that meshes with each other is fixedly provided on the surface of the vertical rod (3019) and the end of the bidirectional lead screw (3014).

7. The high-voltage vacuum circuit breaker according to claim 6, characterized in that: A lubrication assembly (400) for lubricating the two first bevel gears (3020) and the two second bevel gears (3021) is provided inside the vertical cavity (3018).

8. The high-voltage vacuum circuit breaker according to claim 7, characterized in that: The lubrication assembly (400) comprises a vertical pipe (401) fixed to the inner wall of the vertical cavity (3018), and two atomizing nozzles (402) embedded in the surface of the vertical pipe (401) and connected to the vertical pipe (401), and the two atomizing nozzles (402) respectively correspond to the first bevel gear (3020) and the second bevel gear (3021).

9. The high-voltage vacuum circuit breaker according to claim 8, characterized in that: The lubrication assembly (400) further comprises a rectangular box (403) fixedly mounted on the outer surface of the cabinet (200), and the inner wall of the rectangular box (403) is respectively provided with two independent storage chambers (404) and a drive chamber (405), wherein lubricating oil is stored in the storage chamber (404), and an oil delivery pipe (406) is embedded in the inner top wall of the storage chamber (404), one end of the oil delivery pipe (406) extends to the inner bottom of the storage chamber (404), and the other end of the oil delivery pipe (406) extends to the inner bottom of the storage chamber (404). One end extends to the interior of the vertical tube (401), and a refueling pipe for adding lubricating oil to the interior of the storage chamber (404) is provided on the back of the rectangular box (403), and a sealing plug is provided at the end of the refueling pipe. The end of the threaded column (309) extends to the interior of the drive chamber (405) and is fixed with a reciprocating screw (407). One end of the reciprocating screw (407) extends to the outer surface of the rectangular box (403), and a rotating block (308) is fixed to the end of the reciprocating screw (407); A rectangular plate (408) is slidably provided on the inner wall of the driving chamber (405), and a threaded hole is provided on the surface of the rectangular plate (408) for threaded connection with the outer surface of the reciprocating screw (407), a press-type air pump (409) is fixedly provided on the side of the rectangular plate (408), and the other end of the press-type air pump (409) is fixedly connected to the inner wall of the driving chamber (405), and the ends of the press-type air pump (409) are respectively provided with a pressurizing pipe (4010) and an air suction pipe (4011), and the pressurizing pipe (4010) and the air suction pipe (4011) are fixedly provided at the ends of the press-type air pump (409). The top end of the pressure pipe (4010) extends to the interior of the storage chamber (404), a filter is provided inside the suction pipe (4011), the surfaces of the pressure pipe (4010) and the suction pipe (4011) are respectively provided with an inflation one-way valve and an intake one-way valve, and the inner wall of the driving chamber (405) is provided with an air vent extending to the back of the rectangular box (403), and the inner side wall of the vertical chamber (3018) is provided with an oil drain pipe extending to the outer surface of the cabinet (200), and the surface of the oil drain pipe is provided with an oil drain valve.

10. The high voltage vacuum circuit breaker according to claim 2, characterized in that: The interior of the rectangular cavity (304) is provided with a cleaning assembly (500) for cleaning dust inside the insertion slot (303) before fixing the plug-in board (302). The cleaning assembly (500) comprises two symmetrical folding telescopic airbags (501) fixedly provided on the inner wall of the rectangular cavity (304), and the pressing end of the folding telescopic airbags (501) is fixedly connected to the surface of the sliding plate (305). The inner wall of the folding telescopic airbags (501) is fixedly provided with a return spring. The inner wall of the rectangular cavity (304) is embedded with a split spring. The foldable and telescopic airbags (501) are provided with connecting tubes (502) extending into the interior of the two insertion grooves (303), and the inner wall of the rectangular cavity (304) is provided with a rectangular blowing groove (503) communicating with the connecting tube (502). The ends of the two foldable and telescopic airbags (501) are provided with Y-shaped inflation tubes (504) communicating with the connecting tubes (502), and the ends of the foldable and telescopic airbags (501) are also provided with ventilation tubes extending to the outer surface of the positioning plate (301). The surfaces of the Y-shaped inflation tube (504) and the ventilation tube are both provided with one-way valves.

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