CN113643926B - Auxiliary grounding switch of environment-friendly gas-insulated ring main unit - Google Patents
Auxiliary grounding switch of environment-friendly gas-insulated ring main unit Download PDFInfo
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- CN113643926B CN113643926B CN202111037193.4A CN202111037193A CN113643926B CN 113643926 B CN113643926 B CN 113643926B CN 202111037193 A CN202111037193 A CN 202111037193A CN 113643926 B CN113643926 B CN 113643926B
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- rod
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- 230000007613 environmental effect Effects 0.000 claims abstract description 14
- 230000005570 vertical transmission Effects 0.000 claims abstract description 13
- 238000012546 transfer Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 38
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/12—Adaptation for built-in fuse
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/18—Disposition or arrangement of fuses
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/075—Earthing arrangements
Abstract
The invention relates to the technical field of net cabinets and discloses an environment-friendly gas-insulated ring main unit auxiliary grounding switch which comprises a triangular switch base and an auxiliary positioning base, wherein the top of the switch base is fixedly provided with a grounding switch base, the surface of the grounding switch base is provided with a straight sliding groove, a sliding connection assembly is arranged on the straight sliding groove, and the surface of the sliding connection assembly is rotationally connected with a vertical transmission pull rod. This supplementary earthing switch of environmental protection gas-insulated looped netowrk cabinet makes vertical transfer line take place fast rotation, and then makes contact support and auxiliary switch contact fast rotation, and then auxiliary switch contact and the inside fuse of net cabinet contact, and then makes the inside fuse core of fuse take place the fuse rapidly, makes the net cabinet outage, realizes the parallel connection ground, improves device moving speed and outage speed, and then furthest has guaranteed the safety of net cabinet, realizes the purpose of quick outage, guarantees fortune dimension personnel's safety, reduces the probability of accident.
Description
Technical Field
The invention relates to the technical field of net cabinets, in particular to an auxiliary grounding switch of an environment-friendly gas-insulated ring main unit.
Background
At present, with the rapid development of economy in China, the construction of a power grid and the transformation of a city combining network are deepened continuously, electric equipment is greatly increased, and meanwhile, requirements on power supply reliability and safety are also higher and higher. High voltage switchgear is also greatly increased. The terminal user adopts the preassembled box-type transformer substation more, and the product integrates the high-voltage loop-network cabinet, the transformer and the low-voltage switch cabinet into an outdoor box body, so that the quick hoisting can be realized for immediate use, and the transformer is very popular with users. Inside high-voltage ring network cabinet, along with national environmental protection, more and more users cut the step and begin to use environmental protection gas-insulated looped netowrk cabinet, adopt environmental protection gas-insulated composite apparatus looped netowrk cabinet to transformer protection, this product internally mounted has the fuse, when transformer and power supply line break down, can cut off the power at once, realize quick protection, after the trouble is got rid of, the fuse needs in time to change inside and melts the core, because the fuse both ends all have suspension response potential, in order to ensure fortune dimension personnel's personal safety, need carry out the parallel connection ground to the fuse both ends, prevent to appear the electric shock accident.
The load switch-fuse combination is simpler and more practical than a circuit breaker switch in terms of operation and maintenance and operation, and is more economical in terms of protection of a distribution transformer. Experiments show that when the oil immersed transformer is short circuited, in order to prevent the oil tank body from deforming or even cracking, the fault must be cut off within 20 ms. If the circuit breaker is used for protection, the fastest full-open time (relay protection action time plus inherent action time of the circuit breaker plus arcing time) of the circuit breaker generally needs about 3 cycles (60 ms), and the current limiting fuse can cut off faults and limit short-circuit current within 10ms, so that the transformer can be effectively protected. Therefore, the transformer protection with the capacity below 630kVA is suitable for the switch equipment of the load switch-fuse combined electrical appliance.
When the grounding switch is connected with the fuse, the grounding switch is required to be connected with the fuse within 20ms, however, when the grounding switch is connected with the fuse, the grounding switch is required to be driven to move through a power output device in the net cabinet, and then the grounding switch is connected with the fuse, so that the two ends of the fuse are connected in parallel, electric shock accidents are prevented, when the grounding switch is operated through the power output device in the net cabinet, the time for connecting an auxiliary switch contact with the fuse is easy to be prolonged due to slow transmission, and when a short circuit occurs, the auxiliary switch contact cannot be connected with the fuse rapidly, so that the grounding switch which is operated rapidly is required.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the auxiliary grounding switch of the environment-friendly gas-insulated ring main unit, has the advantages of being convenient and rapid to connect an auxiliary switch contact with a fuse, and solves the problem that the time for connecting the auxiliary switch contact with the fuse is long because the transmission is slower when the grounding switch runs through a power output device in the network cabinet.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an auxiliary grounding switch of environmental protection gas-insulated looped netowrk cabinet, includes triangle-shaped's switch base and auxiliary positioning base, its characterized in that: the top of the switch base is fixedly provided with a grounding switch base, the surface of the grounding switch base is provided with a straight chute, a sliding connection component is arranged on the straight chute, the surface of the sliding connection component is rotationally connected with a vertical transmission pull rod, the surface of the vertical transmission pull rod is rotationally connected with a connecting crank arm, the surface of the sliding connection component is provided with an inclined chute in an inclined shape, the inner part of the inclined chute is slidingly connected with a connecting slide rod, one end of the connecting slide rod far away from the inclined chute is fixedly connected with a transverse pull rod, the switch base is provided with a transverse chute, the insides of the straight chute, the inclined chute and the transverse chute are all provided with the same sliding device, the switch base is provided with a booster device, the booster device comprises a rotating rod, the rotating rod is rotationally connected in the inside of the switch base, the surface of the rotating rod is fixedly connected with a seesaw, the upper end of the seesaw is contacted with a transverse pull rod, the lower end of the seesaw is rotationally connected with a movable pull rod, the upper end of the movable pull rod is rotationally connected with a sliding connection assembly, a longitudinal transmission rod is rotationally connected on an auxiliary positioning base, three contact brackets which are arranged at equal intervals are fixedly connected on the surface of the longitudinal transmission rod, an auxiliary switch contact is arranged on the contact brackets, springs are rotationally sleeved on the two ends of the longitudinal transmission rod, which are close to the auxiliary positioning base, opposite one ends of the two springs are fixedly connected with the surface of the longitudinal transmission rod, one ends of the two springs, which are opposite, are fixedly connected on the auxiliary positioning base, two support plates are fixedly connected on the longitudinal transmission rod, a clamping device is arranged inside the two support plates, a gear is fixedly sleeved on the surface of the longitudinal transmission rod, a rack meshed with the gear is rotationally connected on the transverse pull rod, an elastic spring is fixedly connected on the top of the rack, the upper end of the elastic spring is fixedly connected with the transverse pull rod.
Preferably, the inside of the transverse sliding groove is also connected with a connecting sliding rod fixedly connected with the transverse pull rod in a sliding way, and the sliding connecting component is also connected with a connecting sliding rod fixedly connected with the straight sliding groove in a sliding way.
Preferably, the sliding device comprises a rubber belt, the inner surface of the rubber belt is fixedly connected with the surface of the connecting sliding rod, the rubber belt is slidably embedded in the transverse sliding groove, the transverse sliding groove is internally provided with a semicircular sliding groove, the sliding groove is internally provided with a ball in rolling connection, and the surface of the ball is in rolling connection with the outer surface of the rubber belt.
Preferably, the rotating rod is sleeved with a first torsion spring in a sliding manner, one end of the first torsion spring, which is close to the sliding connection assembly, is fixedly connected with the sliding connection assembly, and one end of the first torsion spring, which is close to the rotating rod, is fixedly connected with the rotating rod.
Preferably, the upper end fixedly connected with transmission shaft of contact support, auxiliary switch contact rotate at the surface of transmission shaft and cup joint, rotate on the transmission shaft and cup joint two second torsion springs, the opposite one end and the fixed surface connection of transmission shaft of two second torsion springs, the opposite one end and auxiliary switch contact fixed connection of second torsion spring.
Preferably, the clamping device comprises an outer rod, the outer rod is fixedly connected with the inside of the two supporting plates, a limiting slide way is arranged in the outer rod, a semicircular clamping block is connected to the inside of the limiting slide way in a sliding mode, a reset spring is fixedly connected to the bottom of the clamping block, the lower end of the reset spring is fixedly connected with the bottom of the limiting slide way, and a clamping groove connected with the clamping block in a clamping mode is formed in the bottom of one end, in contact with the clamping block, of the transverse pull rod.
Preferably, the auxiliary positioning base is fixedly provided with a sliding rail, one end of the rack, which is close to the sliding rail, is in sliding connection with the sliding rail, the sliding rail is in sliding connection with the sliding plate, the top of the sliding plate is fixedly connected with a stop block which is trapezoidal in shape, the sliding plate is fixedly provided with a tension spring, and one end of the tension spring, which is far away from the sliding plate, is fixedly connected with the sliding rail.
Preferably, the rack is fixedly arranged at one end of the sliding rail, which slides, a positioning shaft is fixedly arranged at one end of the sliding rail, the surface of the positioning shaft is rotatably sleeved with a hook, an included angle formed by the hook and the rack is in clamping connection with the sliding plate, a third torsion spring is sleeved on the positioning shaft, and two torsion arms of the third torsion spring are respectively and fixedly connected with the hook and the rack.
(III) beneficial effects
Compared with the prior art, the invention provides the environment-friendly gas-insulated ring main unit auxiliary grounding switch, which has the following beneficial effects:
1. this supplementary earthing switch of environmental protection gas-insulated looped netowrk cabinet because horizontal pull rod removes and horizontal pull rod is the slope setting, and then when horizontal pull rod moves forward, the rack can slide in the inside of slide rail, and then when rack and dog contact, the rack can slide along the slope on the dog, and then make the rack rotate, extrude spring, make rack and gear break away from, simultaneously because horizontal pull rod removes, make the fixture block break away from the draw-in groove, and then vertical transfer line is not being blocked, and then torsion effect through the clockwork, make vertical transfer line take place fast rotation, and then make contact support and auxiliary switch contact fast rotation, and then auxiliary switch contact and the inside fuse contact of net cabinet, and then make the inside fuse core of fuse take place fuse rapidly, make the net cabinet outage, realize and connect the ground, improve device moving speed and outage speed, and the furthest have guaranteed the safety of net cabinet, realize quick outage's purpose, guarantee fortune dimension personnel's safety, reduce the probability of accident.
2. This supplementary earthing switch of environmental protection gas-insulated looped netowrk cabinet passes through the bolt fastening with assistance-localization real-time base and switch base in the inside of cabinet, power take-off end fixed connection in connecting the crank with the cabinet, because the eccentric rotation takes place for connecting the crank, and then make the crank rotate and drive vertical transmission pull rod and upwards move, and then the pulling slip coupling assembling upwards moves, make the connection slide bar on the slip coupling assembling slide in the inside of straight spout, and then the slip coupling assembling drive movable pull rod upwards move, and then the one end of pulling seesaw upwards moves, the other end of seesaw can give a thrust for horizontal pull rod, and then give a gliding trend of horizontal pull rod, conveniently promote horizontal pull rod and remove, and then guarantee horizontal pull rod gliding smoothness, the smoothness of whole device has been guaranteed, avoid appearing the phenomenon of card dun, the functioning speed of device is influenced, the speed of device operation is improved, and then realize quick outage.
3. This supplementary earthing switch of environmental protection gas-insulated looped netowrk cabinet, when sliding connection subassembly upwards moves, can make the inside slip of connecting the slide bar at the slope spout, and then make transverse pull rod remove, and then because the inside slip of connecting the slide bar at the transverse spout on the transverse pull rod, make the inside slip of connecting the slide bar at straight spout on the sliding connection subassembly, and then connect the inside gliding in-process of slide bar at the transverse spout, drive the rubber tape and slide in the inside of recess, and then make rubber tape and ball produce frictional force and drive the ball and roll in the inside of spout, and then reduce the frictional force of connecting the slide bar in the inside gliding of transverse spout, guaranteed the smooth degree of device operation, avoid appearing the phenomenon of blocking, further improve the speed of device operation, be convenient for realize quick outage, for the operation lifting speed of whole device.
4. This supplementary earthing switch of environmental protection gas-insulated looped netowrk cabinet, because the inside of straight spout, slope spout and horizontal spout all is provided with the same slider, and then when three connection slide bars are gliding, very big degree has reduced the frictional force of device, improves gliding smoothness degree.
5. This supplementary earthing switch of environmental protection gas-insulated looped netowrk cabinet, when auxiliary switch contact and fuse carry out quick connect, because auxiliary switch contact can collide with the fuse rapidly, and then when auxiliary switch contact bumps the fuse and contacts, auxiliary switch contact can rotate on the surface of transmission shaft, and then make two second torsion springs take place deformation, and then reduce auxiliary switch contact to the impact force of fuse, the safety of fuse has been protected, still be favorable to guaranteeing the laminating degree between auxiliary switch contact and the fuse, guarantee the inseparable type that auxiliary switch contact and fuse are connected, avoid taking place to break away from the phenomenon.
6. This supplementary earthing switch of environmental protection gas-insulated looped netowrk cabinet, the rack moves backward, and then make the one end card of slide in the contained angle that crotch and rack formed, and then when the rack moves backward, can drive the gear and take place to rotate and slide at the inside of slide rail slides, extrude tension spring, make the clockwork spring take place deformation, and then when fixture block and transverse pull rod contact, transverse pull rod extrudees the fixture block, and then extrude reset spring, and then make the inside of limiting slideway of fixture block shrink, when fixture block and draw-in groove contact, make the fixture block reset through reset spring's elasticity effect, and then the card advances the inside of draw-in groove, conveniently restrict clockwork spring and assistance-localization real-time base, and then guarantee the smoothness of device use next time, reuse of device improves the restriction effect to vertical transfer line, provide power for the next time.
7. This supplementary earthing switch of environmental protection gas-insulated looped netowrk cabinet, because the draw-in groove is greater than the fixture block, and then when the inside of draw-in groove is advanced to the fixture block card, can continue to remove, and then because transverse pull rod and rack continue to remove, and then make tension spring take place maximum deformation, and then the slide receives blocking, and then can't continue to slide, and then third torsion spring takes place deformation, make the crotch rotate on the surface of location axle, and then the slide is not receiving blocking, and then resets through tension spring's elasticity effect, and then accomplish the reset effect of whole device, create conditions for the rack breaks away from the gear next time, be favorable to the repeatedly used of whole device, improve the number of times of use of device.
Drawings
FIG. 1 is a schematic diagram of an auxiliary grounding switch of an environment-friendly gas-insulated ring main unit;
FIG. 2 is a schematic diagram of an auxiliary grounding switch of the environment-friendly gas-insulated ring main unit;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
FIG. 4 is a schematic view of the internal structure of the switch base of the present invention;
FIG. 5 is a schematic view of the internal structure of the outer rod of the present invention;
fig. 6 is a schematic view of the structure of the hook of the present invention.
In the figure: the three-way switch comprises a switch base, a grounding switch base, a 3 sliding connection assembly, a 4 vertical transmission pull rod, a 5 connecting crank arm, a 6 straight sliding chute, a 7 connecting sliding rod, an 8 inclined sliding chute, a 9 transverse pull rod, a 10 rack, a 11 supporting plate, a 12 clamping groove, a 13 clamping block, a 14 auxiliary switch contact, a 15 contact support, a 16 spring, a 17 auxiliary positioning base, a 18 rubber belt, a 19 sliding chute, a 20 seesaw, a 21 first torsion spring, a 22 rotating rod, a 23 ball, a 24 transverse sliding chute, a 25 transmission shaft, a 26 second torsion spring, a 27 longitudinal transmission rod, a 28 return spring, a 29 limiting sliding chute, a 30 outer rod, a 31 gear, a 32 elastic spring, a 33 sliding rail, a 34 tension spring, a 35 stop block, a 36 sliding plate, a 37 movable pull rod, a 38 hook, a 39 positioning shaft and a 40 third torsion spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a new technical solution: the auxiliary grounding switch of the environment-friendly gas-insulated ring main unit comprises a triangular switch base 1 and an auxiliary positioning base 17, wherein the top of the switch base 1 is fixedly provided with a grounding switch base 2, the surface of the grounding switch base 2 is provided with a straight sliding groove 6, the straight sliding groove 6 is provided with a sliding connection assembly 3, the surface of the sliding connection assembly 3 is rotationally connected with a vertical transmission pull rod 4, the surface of the vertical transmission pull rod 4 is rotationally connected with a connecting crank arm 5, the surface of the sliding connection assembly 3 is provided with an inclined sliding groove 8 in an inclined shape, the inside of the inclined sliding groove 8 is slidingly connected with a connecting sliding rod 7, one end of the connecting sliding rod 7 far away from the inclined sliding groove 8 is fixedly connected with a transverse pull rod 9, the inside of the switch base 1 is provided with a transverse sliding groove 24, the inside of the transverse sliding groove 24 is also slidingly connected with a connecting sliding rod 7 fixedly connected with the transverse pull rod 9, the sliding connection assembly 3 is also fixedly connected with a connecting sliding rod 7 slidingly connected with the straight sliding groove 6, and the inside of the straight sliding groove 6, the inclined sliding groove 8 and the transverse sliding groove 24 are provided with the same sliding device;
the sliding device comprises a rubber belt 18, the inner surface of the rubber belt 18 is fixedly connected with the surface of the connecting sliding rod 7, the rubber belt 18 is slidably embedded in a transverse sliding groove 24, a sliding groove 19 with a semicircular shape is formed in the transverse sliding groove 24, a ball 23 is connected in the sliding groove 19 in a rolling manner, the surface of the ball 23 is in rolling connection with the outer surface of the rubber belt 18, and a power assisting device is arranged on the switch base 1;
the power assisting device comprises a rotating rod 22, the rotating rod 22 is rotationally connected in the switch base 1, a seesaw 20 is fixedly connected to the surface of the rotating rod 22, the upper end of the seesaw 20 is in contact with a transverse pull rod 9, the lower end of the seesaw 20 is rotationally connected with a movable pull rod 37, the upper end of the movable pull rod 37 is rotationally connected with a sliding connection assembly 3, a first torsion spring 21 is sleeved on the rotating rod 22 in a sliding manner, one end of the first torsion spring 21, which is close to the sliding connection assembly 3, is fixedly connected with the sliding connection assembly 3, one end of the first torsion spring 21, which is close to the rotating rod 22, is fixedly connected with a longitudinal transmission rod 27 on an auxiliary positioning base 17, three contact supports 15 which are equidistantly arranged are fixedly connected with the surface of the longitudinal transmission rod 27, and auxiliary switch contacts 14 are arranged on the contact supports 15;
the upper end of the contact support 15 is fixedly connected with a transmission shaft 25, the auxiliary switch contact 14 is rotatably sleeved on the surface of the transmission shaft 25, two second torsion springs 26 are rotatably sleeved on the transmission shaft 25, opposite ends of the two second torsion springs 26 are fixedly connected with the surface of the transmission shaft 25, opposite ends of the second torsion springs 26 are fixedly connected with the auxiliary switch contact 14, two ends of a longitudinal transmission rod 27, which are close to an auxiliary positioning base 17, are rotatably sleeved with springs 16, opposite ends of the two springs 16 are fixedly connected with the surface of the longitudinal transmission rod 27, opposite ends of the two springs 16 are fixedly connected with the auxiliary positioning base 17, two support plates 11 are fixedly connected with the longitudinal transmission rod 27, and clamping devices are arranged inside the two support plates 11;
the clamping device comprises an outer rod 30, wherein the outer rod 30 is fixedly connected with the interiors of two supporting plates 11, a limit slide way 29 is arranged in the outer rod 30, a semicircular clamping block 13 is connected in a sliding manner in the limit slide way 29, a return spring 28 is fixedly connected to the bottom of the clamping block 13, the lower end of the return spring 28 is fixedly connected with the bottom of the limit slide way 29, a clamping groove 12 which is clamped with the clamping block 13 is formed in the bottom of one end, which is contacted with the clamping block 13, of a transverse pull rod 9, a gear 31 is fixedly sleeved on the surface of a longitudinal transmission rod 27, a rack 10 meshed with the gear 31 is rotationally connected on the transverse pull rod 9, an elastic spring 32 is fixedly connected to the top of the rack 10, and the upper end of the elastic spring 32 is fixedly connected with the transverse pull rod 9;
the auxiliary positioning base 17 is fixedly provided with a sliding rail 33, one end of the rack 10, which is close to the sliding rail 33, is in sliding connection with the inside of the sliding rail 33, a sliding plate 36 is in sliding connection with the inside of the sliding rail 33, the top of the sliding plate 36 is fixedly connected with a stop block 35 in a trapezoid shape, the sliding plate 36 is fixedly provided with a tension spring 34, one end of the tension spring 34, which is far away from the sliding plate 36, is fixedly connected with the inside of the sliding rail 33, one end of the rack 10, which is in sliding connection with the inside of the sliding rail 33, is fixedly provided with a positioning shaft 39, the surface of the positioning shaft 39 is rotatably sleeved with a hook 38, an included angle formed by the hook 38 and the rack 10 is clamped with the sliding plate 36, the positioning shaft 39 is sleeved with a third torsion spring 40, and two torsion arms of the third torsion spring 40 are respectively fixedly connected with the hook 38 and the rack 10;
the auxiliary positioning base 17 and the switch base 1 are fixed in the net cabinet through bolts, the connecting crank arm 5 is fixedly connected with the power output end in the net cabinet, and the connecting crank arm 5 eccentrically rotates, so that the connecting crank arm 5 rotates to drive the vertical transmission pull rod 4 to move upwards, the sliding connection assembly 3 is pulled to move upwards, the connecting slide rod 7 on the sliding connection assembly 3 slides in the straight sliding groove 6, the sliding connection assembly 3 drives the movable pull rod 37 to move upwards, one end of the seesaw 20 is pulled to move upwards, the other end of the seesaw 20 pushes the transverse pull rod 9, the transverse pull rod 9 slides, the transverse pull rod 9 is pushed to move conveniently, the smoothness of sliding of the transverse pull rod 9 is guaranteed, the smoothness of the whole device is guaranteed, the phenomenon of blocking is avoided, the running speed of the device is influenced, the running speed of the device is improved, the quick power-off is realized, when the seesaw 20 rotates, the first torsion spring 21 contracts, the first torsion spring 21 is enabled to move downwards, the first torsion spring 21 is enabled to reset smoothly, and the smoothness of the reset is improved conveniently;
when the sliding connection assembly 3 moves upwards, the connecting sliding rod 7 slides in the inclined sliding groove 8, and then the connecting sliding rod 7 slides in the inclined sliding groove 8 due to the inclined sliding groove 8, so that the transverse pull rod 9 moves, and then the connecting sliding rod 7 on the sliding connection assembly 3 slides in the transverse sliding groove 24 due to the connecting sliding rod 7 on the transverse pull rod 9 slides in the transverse sliding groove 24, so that the connecting sliding rod 7 on the sliding connection assembly 3 slides in the straight sliding groove 6, and further, the switch base 1 and the overlapping part of the transverse sliding groove 24 are provided with grooves in sliding connection with the rubber belt 18, the grooves have the function of limiting the rubber belt 18, so that the rubber belt 18 can only slide in the grooves, and then the connecting sliding rod 7 slides in the grooves, so that the rubber belt 18 and the balls 23 generate friction force to drive the balls 23 to roll in the grooves 19, so that the friction force of the connecting sliding rod 7 slides in the transverse sliding groove 24 is reduced, the smooth running of the device is ensured, the phenomenon of blocking is avoided, the running speed of the device is further improved, and the quick power-off running of the device is conveniently realized;
the same sliding devices are arranged in the straight sliding groove 6, the inclined sliding groove 8 and the transverse sliding groove 24, so that when the three connecting sliding rods 7 slide, the friction force of the device is reduced to a great extent, and the sliding smoothness is improved;
because the transverse pull rod 9 moves and the transverse pull rod 9 is obliquely arranged, when the transverse pull rod 9 moves forwards, the rack 10 slides in the sliding rail 33, when the rack 10 contacts with the stop block 35, the rack 10 slides along a slope on the stop block 35, the rack 10 rotates, the elastic spring 32 is extruded, the rack 10 is separated from the gear 31, meanwhile, the clamping block 13 is separated from the clamping groove 12, the longitudinal transmission rod 27 is not blocked, the longitudinal transmission rod 27 rotates rapidly under the torsion action of the spring 16, the contact support 15 rotates rapidly with the auxiliary switch contact 14, the auxiliary switch contact 14 contacts with a fuse in the net cabinet, the fuse core in the fuse is fused rapidly, the net cabinet is powered off, the running speed and the power-off speed of the device are improved, the safety of the net cabinet is guaranteed to the greatest extent, the safety of a maintenance person is guaranteed, the transverse pull rod 9 moves continuously, the rack 10 slides on the surface of the stop block 35, and then the rack 10 slides on the surface of the gear 33 again when the rack 10 does not slide on the surface of the stop block 35, and enters the sliding rail 33 again when the rack 10 slides on the surface of the stop block 33;
when the auxiliary switch contact 14 is in quick connection with the fuse, the auxiliary switch contact 14 can collide with the fuse quickly, so that when the auxiliary switch contact 14 collides with the fuse, the auxiliary switch contact 14 can rotate on the surface of the transmission shaft 25, so that the two second torsion springs 26 are deformed, the collision force of the auxiliary switch contact 14 on the fuse is reduced, the safety of the fuse is protected, the bonding degree between the auxiliary switch contact 14 and the fuse is guaranteed, the connection tightness between the auxiliary switch contact 14 and the fuse is guaranteed, and the separation phenomenon is avoided;
when the connecting crank arm 5 continues to rotate, as the connecting crank arm 5 moves eccentrically, the vertical transmission pull rod 4 moves downwards, the transverse pull rod 9 moves backwards, the rack 10 moves backwards, one end of the sliding plate 36 is clamped in an included angle formed by the hook 38 and the rack 10, the gear 31 is driven to rotate and the sliding plate 36 slides in the sliding rail 33 when the rack 10 moves backwards, the tension spring 34 is extruded, the longitudinal transmission rod 27 rotates reversely, the spring 16 is deformed, the auxiliary switch contact 14 is not contacted with the fuse, when the clamping block 13 is contacted with the transverse pull rod 9, the clamping block 13 is extruded by the transverse pull rod 9 due to the arc-shaped end of the transverse pull rod 9, the reset spring 28 is extruded, the clamping block 13 is contracted into the limiting slideway 29, the clamping block 13 is reset under the elastic action of the reset spring 28 when the clamping block 13 is contacted with the clamping slot 12, the clamping block 13 is clamped into the clamping slot 12, the clamping block 16 and the auxiliary positioning base 17 are conveniently limited, the next time the device is used, the repeated utilization degree of the device is improved, and the longitudinal transmission effect of the device is improved, and the next smooth movement is realized;
because draw-in groove 12 is greater than fixture block 13, and then when fixture block 13 card advances the inside of draw-in groove 12, and then can continue to remove, and then because transverse pull rod 9 and rack 10 continue to remove, and then make tension spring 34 take place the biggest deformation, and then slide 36 receives blocking, and then can't continue to slide, and then third torsion spring 40 takes place the deformation, make crotch 38 rotate on the surface of location axle 39, and then slide 36 is not receiving blocking, and then reset through tension spring 34's elasticity effect, and then accomplish the reset effect of whole device, create the condition for rack 10 breaks away from gear 31 next time, be favorable to the reuse of whole device, improve the number of times of use of device.
Working principle:
this supplementary earthing switch of environmental protection gas-insulated looped netowrk cabinet, when using:
the first step, fixing an auxiliary positioning base 17 and a switch base 1 in a net cabinet through bolts, fixedly connecting a connecting crank arm 5 with a power output end in the net cabinet, and driving a vertical transmission pull rod 4 to move upwards by rotating the connecting crank arm 5 due to eccentric rotation of the connecting crank arm 5, and further pulling a sliding connection assembly 3 to move upwards, so that a connecting slide rod 7 on the sliding connection assembly 3 slides in a straight sliding groove 6, and further the sliding connection assembly 3 drives a movable pull rod 37 to move upwards, and further one end of a seesaw 20 is pulled to move upwards, and the other end of the seesaw 20 can push a transverse pull rod 9, and further a sliding trend is given to the transverse pull rod 9;
secondly, when the sliding connection assembly 3 moves upwards, the connecting slide rod 7 slides in the inclined slide groove 8, the transverse pull rod 9 moves, the connecting slide rod 7 on the sliding connection assembly 3 slides in the straight slide groove 6 due to the fact that the connecting slide rod 7 on the transverse pull rod 9 slides in the transverse slide groove 24, and the connecting slide rod 7 slides in the transverse slide groove 24, the rubber belt 18 slides in the groove, and the rubber belt 18 and the ball 23 generate friction force to drive the ball 23 to roll in the slide groove 19;
the third step, because the straight chute 6, the inclined chute 8 and the transverse chute 24 are all provided with the same sliding device, when the three connecting sliding rods 7 slide, the friction force of the device is reduced to a great extent, and the sliding smoothness is improved;
fourth, because the transverse pull rod 9 moves and the transverse pull rod 9 is obliquely arranged, when the transverse pull rod 9 moves forwards, the rack 10 slides in the sliding rail 33, when the rack 10 contacts the stop block 35, the rack 10 slides along the slope on the stop block 35, the rack 10 rotates, the elastic spring 32 is extruded, the rack 10 is separated from the gear 31, meanwhile, the clamping block 13 is separated from the clamping groove 12 due to the movement of the transverse pull rod 9, the longitudinal transmission rod 27 is not blocked, the longitudinal transmission rod 27 rotates rapidly under the torsion action of the spring 16, and the contact support 15 and the auxiliary switch contact 14 rotate rapidly;
fifth, when the auxiliary switch contact 14 is connected with the fuse quickly, the auxiliary switch contact 14 collides with the fuse quickly, so that when the auxiliary switch contact 14 collides with the fuse to contact, the auxiliary switch contact 14 rotates on the surface of the transmission shaft 25, and the two second torsion springs 26 deform;
sixthly, when the connecting crank arm 5 continues to rotate, due to eccentric movement when the connecting crank arm 5 is connected, the vertical transmission pull rod 4 moves downwards, the transverse pull rod 9 moves backwards, the rack 10 moves backwards, one end of the sliding plate 36 is clamped in an included angle formed by the hook 38 and the rack 10, when the rack 10 moves backwards, the gear 31 is driven to rotate and the sliding plate 36 slides in the sliding rail 33, the tension spring 34 is extruded, the longitudinal transmission rod 27 rotates reversely, the spring 16 is deformed, the auxiliary switch contact 14 is not in contact with the fuse, when the clamping block 13 is in contact with the transverse pull rod 9, the clamping block 13 is extruded by the transverse pull rod 9, the reset spring 28 is extruded, the clamping block 13 is contracted into the limiting slideway 29, and when the clamping block 13 is in contact with the clamping groove 12, the clamping block 13 is reset by the action of the reset spring 28, and then clamped into the clamping groove 12;
seventh, because draw-in groove 12 is greater than fixture block 13, and then when the inside of draw-in groove 12 is gone into to fixture block 13 card, and then can continue to remove, and then because transverse pull rod 9 and rack 10 continue to remove, and then make tension spring 34 take place the biggest deformation, and then slide 36 receives blocking, and then can't continue to slide, and then third torsion spring 40 takes place deformation, makes crotch 38 rotate on the surface of locating shaft 39, and then slide 36 is not receiving blocking, and then resets through tension spring 34's elasticity effect.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an auxiliary grounding switch of environmental protection gas-insulated looped netowrk cabinet, includes triangle-shaped's switch base (1) and auxiliary positioning base (17), its characterized in that: the top fixed mounting of switch base (1) has earthing switch base (2), the surface of earthing switch base (2) has seted up straight spout (6), be provided with sliding connection subassembly (3) on straight spout (6), sliding connection subassembly (3)'s surface rotation is connected with vertical transmission pull rod (4), vertical transmission pull rod (4)'s surface rotation is connected with connection turning arm (5), inclined spout (8) for the slope form are seted up on sliding connection subassembly (3)'s surface, inclined spout (8)'s inside sliding connection has connection slide bar (7), the one end fixedly connected with horizontal pull rod (9) of connecting slide bar (7) keep away from inclined spout (8), lateral sliding groove (24) have been seted up on switch base (1), straight spout (6), inclined spout (8) and lateral sliding groove (24)'s inside all are provided with the same slider, be provided with booster on switch base (1), booster includes dwang (22), dwang (22) are at switch base's inside rotation connection, the fixed connection of surface of dwang (22) has seesaw (20), seesaw (20) are connected with seesaw (20) on seesaw (20), seesaw (20) contact with seesaw (20), the upper end and sliding connection subassembly (3) rotation of movable pull rod (37) are connected, the last rotation of auxiliary positioning base (17) is connected with vertical transfer line (27), the fixed surface of vertical transfer line (27) is connected with contact support (15) that three equidistance set up, be provided with auxiliary switch contact (14) on contact support (15), the rotation has cup jointed clockwork spring (16) on the both ends that vertical transfer line (27) are close to auxiliary positioning base (17), the opposite one end and the fixed surface of vertical transfer line (27) of two clockwork springs (16) are connected, the one end that two clockwork springs (16) are on the back of the body is fixed connection on auxiliary positioning base (17), the fixed surface of vertical transfer line (27) is connected with two backup pads (11), the inside of two backup pads (11) is provided with joint device, the fixed surface of vertical transfer line (27) cup joints gear (31), the last rotation of transverse pull rod (9) is connected with rack (10) with the meshing of gear (31), the top fixedly connected with elasticity spring (32), the upper end of elasticity spring (32) is fixed connection on transverse pull rod (9).
2. The environmentally friendly gas insulated ring main unit auxiliary grounding switch of claim 1, wherein: the inside of the transverse sliding groove (24) is also connected with a connecting sliding rod (7) fixedly connected with the transverse pull rod (9) in a sliding way, and the sliding connecting component (3) is also connected with the connecting sliding rod (7) fixedly connected with the straight sliding groove (6) in a sliding way.
3. The environmentally friendly gas insulated ring main unit auxiliary grounding switch of claim 1, wherein: the sliding device comprises a rubber belt (18), wherein the inner surface of the rubber belt (18) is fixedly connected with the surface of a connecting sliding rod (7), the rubber belt (18) is embedded in the transverse sliding groove (24) in a sliding manner, a sliding groove (19) with a semicircular shape is formed in the transverse sliding groove (24), balls (23) are connected in the sliding groove (19) in a rolling manner, and the surface of the balls (23) is connected with the outer surface of the rubber belt (18) in a rolling manner.
4. The environmentally friendly gas insulated ring main unit auxiliary grounding switch of claim 1, wherein: the rotating rod (22) is sleeved with a first torsion spring (21) in a sliding manner, one end of the first torsion spring (21) close to the sliding connection assembly (3) is fixedly connected with the sliding connection assembly (3), and one end of the first torsion spring (21) close to the rotating rod (22) is fixedly connected with the rotating rod (22).
5. The environmentally friendly gas insulated ring main unit auxiliary grounding switch of claim 1, wherein: the upper end fixedly connected with transmission shaft (25) of contact support (15), auxiliary switch contact (14) rotate at the surface of transmission shaft (25) and cup joint, rotate on transmission shaft (25) and cup joint two second torsion springs (26), the relative one end of two second torsion springs (26) and the surface fixed connection of transmission shaft (25), the one end that second torsion springs (26) are on the back of the body and auxiliary switch contact (14) fixed connection.
6. The environmentally friendly gas insulated ring main unit auxiliary grounding switch of claim 1, wherein: the clamping device comprises an outer rod (30), wherein the outer rod (30) is fixedly connected with the inside of two supporting plates (11), a limiting slide way (29) is arranged in the outer rod (30), a semicircular clamping block (13) is connected to the inside of the limiting slide way (29) in a sliding mode, a reset spring (28) is fixedly connected to the bottom of the clamping block (13), the lower end of the reset spring (28) is fixedly connected with the bottom of the limiting slide way (29), and a clamping groove (12) connected with the clamping block (13) in a clamping mode is formed in the bottom of one end, in contact with the clamping block (13), of the transverse pull rod (9).
7. The environmentally friendly gas insulated ring main unit auxiliary grounding switch of claim 1, wherein: the auxiliary positioning base (17) is fixedly provided with a sliding rail (33), one end of the rack (10) close to the sliding rail (33) is in sliding connection with the sliding rail (33), the sliding rail (33) is in sliding connection with a sliding plate (36), the top of the sliding plate (36) is fixedly connected with a stop block (35) in a trapezoid shape, the sliding plate (36) is fixedly provided with a tension spring (34), and one end of the tension spring (34) far away from the sliding plate (36) is fixedly connected with the sliding rail (33).
8. The environmentally friendly gas insulated ring main unit auxiliary grounding switch of claim 7, wherein: the rack (10) is fixedly mounted with a positioning shaft (39) at one end of the sliding rail (33) in a sliding manner, a hook (38) is rotatably sleeved on the surface of the positioning shaft (39), an included angle formed by the hook (38) and the rack (10) is clamped with the sliding plate (36), a third torsion spring (40) is sleeved on the positioning shaft (39), and two torsion arms of the third torsion spring (40) are fixedly connected with the hook (38) and the rack (10) respectively.
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| CN202111037193.4A CN113643926B (en) | 2021-09-06 | 2021-09-06 | Auxiliary grounding switch of environment-friendly gas-insulated ring main unit |
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| CN202111037193.4A CN113643926B (en) | 2021-09-06 | 2021-09-06 | Auxiliary grounding switch of environment-friendly gas-insulated ring main unit |
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| CN113643926B true CN113643926B (en) | 2024-03-01 |
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| CN113643926A (en) | 2021-11-12 |
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