CN112992596A - Arc extinguishing device of air-blowing type load switch and implementation method thereof - Google Patents
Arc extinguishing device of air-blowing type load switch and implementation method thereof Download PDFInfo
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- CN112992596A CN112992596A CN202110255483.XA CN202110255483A CN112992596A CN 112992596 A CN112992596 A CN 112992596A CN 202110255483 A CN202110255483 A CN 202110255483A CN 112992596 A CN112992596 A CN 112992596A
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- wall
- arc extinguishing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/22—Selection of fluids for arc-extinguishing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
- H01H2009/526—Cooling of switch parts of the high voltage switches
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses an arc extinguishing device of an air-blowing type load switch and an implementation method thereof, wherein the arc extinguishing device comprises a first chute, a first spring, an arc extinguishing knife switch, a cylinder, an arc contact, a nozzle, a piston, a first rack, a handle, a driving gear, a driven gear, a second rack, a limiting block, a second spring, a limiting rod, an air outlet, a motor, an air suction fan and a filter screen; step two, blowing arc extinction; step three, air suction cooling; step four, manually switching on; the air-blast arc extinguishing device is safe and reliable, and simple in structure and achieves the purpose of rapid air-blast arc extinguishing through the matched use of the first spring, the arc-extinguishing knife switch, the cylinder, the arc contact, the nozzle, the piston, the first rack, the driving gear, the driven gear, the second rack, the limiting block, the second spring and the limiting rod; through the cooperation use of gas outlet, motor, suction fan and filter screen, when switching off the arc extinguishing, get rid of high temperature fast, reduce the potential safety hazard.
Description
Technical Field
The invention relates to the technical field of load switches, in particular to an arc extinguishing device of an air-blowing type load switch and an implementation method thereof.
Background
The load switch is mainly used for switching on and off load current, and can be matched with a high-voltage fuse for use to replace a circuit breaker, and the load switch is convenient to use and reasonable in price, so that the load switch is widely used in a 10kV distribution network system, and the market has mobile requirements on the use of some load switches; however, the existing load switch has a simple structure, is inconvenient to mount and dismount, and affects use, and the existing load switch mostly generates higher temperature when in use, so that potential safety hazards are easily caused; therefore, it is necessary to invent an arc extinguishing device for a gas-blowing type load switch and a method for implementing the same.
Disclosure of Invention
The present invention is directed to an arc extinguishing device of a gas-blowing type load switch and a method for implementing the same, so as to solve the problems of the background art.
In order to solve the technical problems, the invention provides the following technical scheme: an arc extinguishing device of an air-blowing type load switch comprises a mounting plate, a collision bolt, a machine shell, a first chute, a wiring end, a fastening screw, a mounting seat, a porcelain bottle, a wire inlet end, a first rotating shaft, a first spring, an insulating rotating block, a main knife switch, an arc-extinguishing knife switch, a main contact, a wire outlet end, a protective seat, a cylinder, an arc contact, a nozzle, a piston, a first rack, a second chute, a second rotating shaft, a handle, a driving gear, a third rotating shaft, a driven gear, a third chute, a second rack, a limiting block, a sleeve, a second spring, a limiting rod, a gas outlet, a motor, an air suction fan and a filter screen, wherein the collision bolt is distributed on the outer wall of one side of the mounting plate, the machine shell is arranged on the outer wall of one side of the machine shell, the first chute is arranged on the outer wall of one side of the machine shell, and, the outer wall of one side of the shell is provided with wiring ends, the outer wall of one side of the shell is in threaded connection with fastening screws, the inner wall of one side of the shell is fixedly connected with a mounting seat, the outer wall of the top end of the mounting seat is fixedly connected with a porcelain insulator, the outer wall of the top end of the porcelain insulator is provided with a wire inlet end, the inner wall of one side of the shell is fixedly connected with a first rotating shaft, the outer wall of one side of the first rotating shaft is sleeved with a first spring, the outer wall of one side of the first spring is sleeved with an insulating rotating block, the outer wall of one side of the insulating rotating block is fixedly connected with a main knife, the outer wall of one side of the main knife is provided with an arc extinguishing knife switch, the outer wall of one end of the main knife switch is provided with a main contact, the outer wall of one side of the main contact is fixedly connected, the air cylinder is fixedly connected to the inner wall of one side of the protection seat, the arc contact is arranged on the outer wall of the top end of the air cylinder, the piston is connected to the inner wall of one side of the air cylinder in a sliding manner, the first rack is fixedly connected to the outer wall of one side of the piston and is connected to the inner wall of one side of the protection seat in a sliding manner, the second rotating shaft is rotatably connected to the inner wall of one side of the casing, the driving gear is fixedly connected to the outer wall of one side of the second rotating shaft, the third rotating shaft is rotatably connected to the inner wall of one side of the casing, the driven gear is fixedly connected to the outer wall of one side of the third rotating shaft, the third sliding groove is formed in the inner wall of one side of the casing, the second rack is slidably connected to the inner wall of one side of the third sliding groove, the driven gear is meshed with the, and stopper sliding connection is on one side inner wall of third spout, fixedly connected with sleeve on one side inner wall of casing, it has the second spring to peg graft on the telescopic one side inner wall, it has the gag lever post to peg graft on one side inner wall of second spring, it has seted up the gas outlet to link up on one side inner wall of casing, fixedly connected with motor on one side inner wall of casing, fixedly connected with suction fan on the one end outer wall of motor output shaft.
An implementation method of an arc extinguishing device of an air-blowing type load switch comprises the steps of firstly, installing the load switch; step two, blowing arc extinction; step three, air suction cooling; step four, manually switching on;
in the first step, a plurality of collision bolts are inserted into the mounting plate, then one ends of the collision bolts are fixedly connected into the wall, the load switch slides into the mounting plate through the first sliding chute, the connecting wire is inserted into the wire inlet end, and the connecting wire is fastened through the fastening screw;
in the second step, the handle is manually rotated, so that the first rack pushes the piston to move upwards, the piston compresses arc extinguishing gas in the cylinder, and simultaneously, under the action of the handle, the limiting block is driven to move so as to abut against the limiting rod to move upwards, and under the action of the limiting rod, the arc extinguishing knife on the main knife is driven to rotate, so that one end of the arc extinguishing knife abuts against the arc contact, the arc extinguishing gas in the cylinder is sprayed out through the nozzle, and the gas-blast arc extinguishing is realized;
in the third step, when the second step is used for blowing arc extinction, the motor is started to drive the suction fan to rotate, so that high temperature generated when the negative pressure switch is opened is discharged through the air outlet;
in the fourth step, when the switch needs to be switched on, the handle is manually rotated to enable the piston on the first rack to move downwards, the limiting block is driven to move under the action of the cylinder, the limiting rod is reset under the action of the second spring, and the main switch knife is reset under the action of the first spring to achieve the switch-on action.
According to the technical scheme, the outer wall of the top end of the air cylinder is provided with the nozzle.
According to the technical scheme, the second sliding groove is formed in the inner wall of one side of the machine shell, and one end of the first rack is connected to the inner wall of one side of the second sliding groove in a sliding mode.
According to the technical scheme, the outer wall of one side of the shell is rotatably connected with the handle, and the second rotating shaft is fixedly connected to the inner wall of one side of the handle.
According to the technical scheme, the inner wall of one side of the air outlet is connected with the filter screen in an embedded mode.
Compared with the prior art, the invention has the following beneficial effects: the invention is safe and reliable, and has simple structure and convenient installation and disassembly of the load switch by matching the installation plate, the collision bolt and the first chute; the first spring, the insulating rotating block, the main knife switch, the arc extinguishing knife switch, the cylinder, the arc contact, the nozzle, the piston, the first rack, the handle, the driving gear, the driven gear, the second rack, the limiting block, the second spring and the limiting rod are matched for use, the structure is simple, and the purpose of rapid air-blowing arc extinguishing is achieved; through the cooperation use of gas outlet, motor, suction fan and filter screen, when switching off the arc extinguishing, get rid of high temperature fast, reduce the potential safety hazard.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective view of a load switch according to the present invention;
FIG. 2 is a schematic overall front view of the present invention;
FIG. 3 is a front sectional view of the housing of the present invention;
FIG. 4 is an enlarged view of the structure of the area A in FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the structure of the area B in FIG. 3 according to the present invention;
FIG. 6 is a flow chart of a method of the present invention;
in the figure: 1. mounting a plate; 2. a collision bolt; 3. a housing; 4. a first chute; 5. a terminal; 6. fastening screws; 7. a mounting seat; 8. a porcelain bottle; 9. a wire inlet end; 10. a first rotating shaft; 11. a first spring; 12. an insulating turning block; 13. a main knife switch; 14. an arc extinguishing knife switch; 15. a main contact; 16. a wire outlet end; 17. a protective seat; 18. a cylinder; 19. an arcing contact; 20. a spout; 21. a piston; 22. a first rack; 23. a second chute; 24. a second rotating shaft; 25. a handle; 26. a driving gear; 27. a third rotating shaft; 28. a driven gear; 29. a third chute; 30. a second rack; 31. a limiting block; 32. a sleeve; 33. a second spring; 34. a limiting rod; 35. an air outlet; 36. a motor; 37. an air suction fan; 38. and (4) a filter screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: an arc extinguishing device of an air-blowing type load switch comprises a mounting plate 1, a collision bolt 2, a machine shell 3, a first chute 4, a wiring terminal 5, a fastening screw 6, a mounting seat 7, a porcelain bottle 8, a wire inlet end 9, a first rotating shaft 10, a first spring 11, an insulating rotating block 12, a main knife switch 13, an arc-extinguishing knife switch 14, a main contact 15, a wire outlet end 16, a protective seat 17, a cylinder 18, an arc contact 19, a nozzle 20, a piston 21, a first rack 22, a second chute 23, a second rotating shaft 24, a handle 25, a driving gear 26, a third rotating shaft 27, a driven gear 28, a third chute 29, a second rack 30, a limiting block 31, a sleeve 32, a second spring 33, a limiting rod 34, a gas outlet 35, a motor 36, an air suction fan 37 and a filter screen 38, wherein the collision bolt 2 is connected to the outer wall of one side of the mounting plate 1 in a threaded distribution manner, the machine shell 3 is, a first chute 4 is arranged on the outer wall of one side of the casing 3, the mounting plate 1 is connected to the inner wall of one side of the first chute 4 in a sliding manner, a wiring terminal 5 is distributed on the outer wall of one side of the casing 3, a fastening screw 6 is distributed on the outer wall of one side of the casing 3 in a threaded manner, a mounting seat 7 is fixedly connected to the inner wall of one side of the casing 3, a porcelain bottle 8 is fixedly connected to the outer wall of the top end of the mounting seat 7, a wire inlet terminal 9 is arranged on the outer wall of the top end of the porcelain bottle 8, a first rotating shaft 10 is fixedly connected to the inner wall of one side of the casing 3, a first spring 11 is sleeved on the outer wall of one side of the first rotating shaft 10, an insulating rotating block 12 is sleeved on the outer wall of one side of the first spring 11, a main switch blade 13 is fixedly connected to the outer wall of one side of the insulating rotating block 12, a wire outlet end 16 is fixedly connected to the outer wall of one side of the main contact 15, a protection seat 17 is fixedly connected to the inner wall of one side of the casing 3, a cylinder 18 is fixedly connected to the inner wall of one side of the protection seat 17, an arc contact 19 is arranged on the outer wall of the top end of the cylinder 18, a piston 21 is slidably connected to the inner wall of one side of the cylinder 18, a first rack 22 is fixedly connected to the outer wall of one side of the piston 21, the first rack 22 is slidably connected to the inner wall of one side of the protection seat 17, a second rotating shaft 24 is rotatably connected to the inner wall of one side of the casing 3, a driving gear 26 is fixedly connected to the outer wall of one side of the second rotating shaft 24, a third rotating shaft 27 is rotatably connected to the inner wall of one side of the casing 3, a driven gear 28 is fixedly connected to the outer wall of one side of the casing 3, a third sliding groove 29, the driven gear 28 is meshed and connected to the outer wall of one side of the second rack 30, the outer wall of one end of the second rack 30 is fixedly connected with a limiting block 31, the limiting block 31 is connected to the inner wall of one side of the third sliding groove 29 in a sliding manner, the inner wall of one side of the shell 3 is fixedly connected with a sleeve 32, the inner wall of one side of the sleeve 32 is inserted with a second spring 33, the inner wall of one side of the second spring 33 is inserted with a limiting rod 34, the inner wall of one side of the shell 3 is provided with an air outlet 35 in a penetrating manner, the inner wall of one side of the shell 3 is fixedly connected with a motor 36, and the outer wall of one; a nozzle 20 is arranged on the outer wall of the top end of the cylinder 18, and the nozzle 20 is arranged to facilitate the ejection of arc extinguishing gas; a second sliding groove 23 is formed in the inner wall of one side of the housing 3, one end of the first rack 22 is connected to the inner wall of one side of the second sliding groove 23 in a sliding manner, and the second sliding groove 23 is arranged to ensure stable sliding of the first rack 22; a handle 25 is rotatably connected to the outer wall of one side of the casing 3, the second rotating shaft 24 is fixedly connected to the inner wall of one side of the handle 25, and the handle 25 is arranged to facilitate driving the driving gear 26 on the second rotating shaft 24 to rotate; the inner wall of one side of the air outlet 35 is connected with a filter screen 38 in an embedded mode, and the filter screen 38 is arranged to prevent dust from entering the load switch.
Referring to fig. 6, the present invention provides a technical solution: an implementation method of an arc extinguishing device of an air-blowing type load switch comprises the steps of firstly, installing the load switch; step two, blowing arc extinction; step three, air suction cooling; step four, manually switching on;
in the first step, a plurality of collision bolts 2 are inserted into the mounting plate 1, then one ends of the collision bolts 2 are fixedly connected into the wall, the load switch is slid onto the mounting plate 1 through the first sliding chute 4, the connecting wire is inserted into the wire inlet end 9, and the fastening is carried out through the fastening screw 6;
in the second step, the handle 25 is manually rotated, so that the first rack 22 pushes the piston 21 to move upwards, the piston 21 compresses arc extinguishing gas in the cylinder 18, meanwhile, the limiting block 31 is driven to move under the action of the handle 25, the limiting block 31 abuts against the limiting rod 34 to move upwards, the arc extinguishing knife 14 on the main knife 13 is driven to rotate under the action of the limiting rod 34, one end of the arc extinguishing knife 14 abuts against the arc contact 19, and the arc extinguishing gas in the cylinder 18 is sprayed out through the nozzle 20, so that arc extinguishing by gas blowing is realized;
in the third step, while the second step performs the arc quenching by blowing, the motor 36 is started to drive the suction fan 37 to rotate, so that the high temperature generated when the negative pressure switch is opened is discharged through the air outlet 35;
in the fourth step, when the switch needs to be switched on, the handle 25 is manually rotated to move the piston 21 on the first rack 22 downward, so that the cylinder 18 is filled with arc extinguishing gas to prepare for next arc extinguishing, and at the same time, the limiting block 31 is driven to move under the action of the handle 25, the limiting rod 34 is reset under the action of the second spring 33, and the main switch blade 13 is reset under the action of the first spring 11, so that the switch-on action is realized.
Based on the above, the invention has the advantages that when the invention is installed and used, firstly, the plurality of collision bolts 2 are inserted into the mounting plate 1, then one ends of the collision bolts 2 are fixedly connected into the wall, the load switch is slid into the mounting plate 1 through the first sliding chute 4, the connecting wire is inserted into the wire inlet end 9, and the fastening is carried out through the fastening screw 6; in use, the handle 25 is manually rotated to rotate the driving gear 26 on the second rotating shaft 24, the driven gear 28 is driven to rotate by the driving gear 26, the first rack 22 is driven to move by the driven gear 28, the piston 21 is pushed by the first rack 22 to move upwards, under the action of the piston 21, the piston 21 compresses the arc extinguishing gas in the cylinder 18, and at the same time, under the action of the driving gear 26, the second rack 30 is driven to slide in the third sliding groove 29, and further the limiting block 31 is driven to move, under the action of the limiting block 31, the limiting block 31 abuts against the limiting rod 34 to move upwards, and under the action of the limiting rod 34, the arc extinguishing knife 14 on the main knife 13 is driven to rotate, so that one end of the arc extinguishing knife 14 abuts against the arc contact 19, arc extinguishing gas in the cylinder 18 is sprayed out through the nozzle 20, and gas blast arc extinguishing is realized; when the arc is extinguished by blowing, the motor 36 is started to drive the suction fan 37 to rotate, so that high temperature generated when the negative pressure switch is opened is discharged through the air outlet 35; when the switch needs to be switched on, the handle 25 is manually rotated to drive the piston 21 on the first rack 22 to move downwards, so that the cylinder 18 is filled with arc extinguishing gas to prepare for next arc extinguishing, and meanwhile, under the action of the handle 25, the second rack 30 is driven to slide in the third sliding groove 29, so that the limiting block 31 is driven to move, under the action of the second spring 33, the limiting rod 34 is reset, and meanwhile, under the action of the first spring 11, the main switch blade 13 is reset, so that the switch-on action is realized.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an air-blast formula load switch's arc control device, including mounting panel (1), collision bolt (2), casing (3), first spout (4), wiring end (5), fastening screw (6), mount pad (7), vase (8), line inlet end (9), first axis of rotation (10), first spring (11), insulating turning block (12), main brake sword (13), arc-extinguishing brake sword (14), main contact (15), leading-out terminal (16), protection seat (17), cylinder (18), arc contact (19), spout (20), piston (21), first rack (22), second spout (23), second axis of rotation (24), handle (25), driving gear (26), third axis of rotation (27), driven gear (28), third spout (29), second rack (30), stopper (31), sleeve (32), second spring (33), Gag lever post (34), gas outlet (35), motor (36), suction fan (37) and filter screen (38), its characterized in that: the mounting structure is characterized in that the outer wall of one side of the mounting plate (1) is connected with collision bolts (2) in a distributed threaded manner, the outer wall of one side of the mounting plate (1) is provided with a casing (3), the outer wall of one side of the casing (3) is provided with a first chute (4), the mounting plate (1) is connected with the inner wall of one side of the first chute (4) in a sliding manner, the outer wall of one side of the casing (3) is provided with a wiring end (5) in a distributed manner, the outer wall of one side of the casing (3) is connected with fastening screws (6) in a distributed threaded manner, the inner wall of one side of the casing (3) is fixedly connected with a mounting seat (7), the outer wall of the top end of the mounting seat (7) is fixedly connected with a porcelain bottle (8), the outer wall of the top end of the porcelain bottle (8) is provided with a wire inlet end (9), the inner wall of one side of the, an insulating rotating block (12) is sleeved on the outer wall of one side of the first spring (11), a main knife switch (13) is fixedly connected to the outer wall of one side of the insulating rotating block (12), an arc extinguishing knife switch (14) is arranged on the outer wall of one side of the main knife switch (13), a main contact (15) is arranged on the outer wall of one end of the main knife switch (13), a wire outlet end (16) is fixedly connected to the outer wall of one side of the main contact (15), a protection seat (17) is fixedly connected to the inner wall of one side of the casing (3), a cylinder (18) is fixedly connected to the inner wall of one side of the protection seat (17), an arc contact (19) is arranged on the outer wall of the top end of the cylinder (18), a piston (21) is slidably connected to the inner wall of one side of the cylinder (18), a first rack (22) is fixedly connected to the outer wall of one side of the piston (21), and the first rack (22) is slidably connected to the inner, a second rotating shaft (24) is rotatably connected to the inner wall of one side of the casing (3), a driving gear (26) is fixedly connected to the outer wall of one side of the second rotating shaft (24), a third rotating shaft (27) is rotatably connected to the inner wall of one side of the casing (3), a driven gear (28) is fixedly connected to the outer wall of one side of the third rotating shaft (27), a third sliding groove (29) is formed in the inner wall of one side of the casing (3), a second rack (30) is slidably connected to the inner wall of one side of the third sliding groove (29), the driven gear (28) is meshed and connected to the outer wall of one side of the second rack (30), a limiting block (31) is fixedly connected to the outer wall of one end of the second rack (30), the limiting block (31) is slidably connected to the inner wall of one side of the third sliding groove (29), and a sleeve (32) is fixedly connected to the inner wall, the utility model discloses a motor, including sleeve (32), one side inner wall of sleeve (32) is gone up to peg graft and is had second spring (33), peg graft on one side inner wall of second spring (33) and is had gag lever post (34), link up on one side inner wall of casing (3) and seted up gas outlet (35), fixedly connected with motor (36) on one side inner wall of casing (3), fixedly connected with suction fan (37) on the one end outer wall of motor (36) output shaft.
2. An implementation method of an arc extinguishing device of an air-blowing type load switch comprises the steps of firstly, installing the load switch; step two, blowing arc extinction; step three, air suction cooling; step four, manually switching on; the method is characterized in that:
in the first step, a plurality of collision bolts (2) are inserted into the mounting plate (1), then one ends of the collision bolts (2) are fixedly connected into the wall, the load switch is slid into the mounting plate (1) through the first sliding groove (4), the connecting wire is inserted into the wire inlet end (9), and the connecting wire is fastened through the fastening screw (6);
in the second step, the handle (25) is manually rotated, so that the first rack (22) pushes the piston (21) to move upwards, the piston (21) compresses arc extinguishing gas in the cylinder (18), meanwhile, the limiting block (31) is driven to move under the action of the handle (25), the limiting block (31) abuts against the limiting rod (34) to move upwards, the arc extinguishing switch (14) on the main switch (13) is driven to rotate under the action of the limiting rod (34), one end of the arc extinguishing switch (14) abuts against the arc contact (19), and the arc extinguishing gas in the cylinder (18) is sprayed out through the nozzle (20), so that gas blowing arc extinguishing is realized;
in the third step, when the second step is used for blowing arc extinction, the motor (36) is started to drive the suction fan (37) to rotate, so that high temperature generated when the negative pressure switch is opened is discharged through the air outlet (35);
in the fourth step, when the switch needs to be switched on, the handle (25) is manually rotated to enable the piston (21) on the first rack (22) to move downwards, so that the cylinder (18) is filled with arc extinguishing gas to prepare for next arc extinguishing, meanwhile, the limiting block (31) is driven to move under the action of the handle (25), the limiting rod (34) is reset under the action of the second spring (33), and meanwhile, the main switch blade (13) is reset under the action of the first spring (11), so that the switch-on action is realized.
3. The arc extinguishing device of the air-blown load switch according to claim 1, wherein: and a nozzle (20) is arranged on the outer wall of the top end of the cylinder (18).
4. The arc extinguishing device of the air-blown load switch according to claim 1, wherein: a second sliding groove (23) is formed in the inner wall of one side of the machine shell (3), and one end of the first rack (22) is connected to the inner wall of one side of the second sliding groove (23) in a sliding mode.
5. The arc extinguishing device of the air-blown load switch according to claim 1, wherein: the outer wall of one side of the machine shell (3) is rotatably connected with a handle (25), and the second rotating shaft (24) is fixedly connected to the inner wall of one side of the handle (25).
6. The arc extinguishing device of the air-blown load switch according to claim 1, wherein: and a filter screen (38) is embedded and connected on the inner wall of one side of the air outlet (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110255483.XA CN112992596A (en) | 2021-03-09 | 2021-03-09 | Arc extinguishing device of air-blowing type load switch and implementation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110255483.XA CN112992596A (en) | 2021-03-09 | 2021-03-09 | Arc extinguishing device of air-blowing type load switch and implementation method thereof |
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| CN112992596A true CN112992596A (en) | 2021-06-18 |
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| CN202110255483.XA Pending CN112992596A (en) | 2021-03-09 | 2021-03-09 | Arc extinguishing device of air-blowing type load switch and implementation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810504A (en) * | 2014-12-28 | 2016-07-27 | 黑龙江宏宇电站设备有限公司 | Pneumatic type high pressure load switch and opening method thereof |
| CN208385295U (en) * | 2018-06-01 | 2019-01-15 | 江苏硕德电力技术有限公司 | A kind of control structure of high voltage load switch |
-
2021
- 2021-03-09 CN CN202110255483.XA patent/CN112992596A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810504A (en) * | 2014-12-28 | 2016-07-27 | 黑龙江宏宇电站设备有限公司 | Pneumatic type high pressure load switch and opening method thereof |
| CN208385295U (en) * | 2018-06-01 | 2019-01-15 | 江苏硕德电力技术有限公司 | A kind of control structure of high voltage load switch |
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