CN113643926A - Auxiliary grounding switch of environment-friendly gas insulation ring main unit - Google Patents
Auxiliary grounding switch of environment-friendly gas insulation ring main unit Download PDFInfo
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- CN113643926A CN113643926A CN202111037193.4A CN202111037193A CN113643926A CN 113643926 A CN113643926 A CN 113643926A CN 202111037193 A CN202111037193 A CN 202111037193A CN 113643926 A CN113643926 A CN 113643926A
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- 238000009413 insulation Methods 0.000 title claims abstract description 24
- 230000007613 environmental effect Effects 0.000 claims abstract description 16
- 230000005570 vertical transmission Effects 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 42
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 abstract description 6
- 230000000670 limiting effect Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 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
- 230000006698 induction Effects 0.000 description 1
- 238000010030 laminating 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
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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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
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- Mechanisms For Operating Contacts (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to the technical field of network cabinets, and discloses an auxiliary grounding switch of an environment-friendly gas-insulated ring main unit, which comprises a triangular switch base and an auxiliary positioning base, wherein the top of the switch base is fixedly provided with the 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 rotatably connected with a vertical transmission pull rod. This earthing switch is assisted to environmental protection gas insulation looped netowrk cabinet makes the vertical transfer line take place to rotate fast, and then makes contact carrier and auxiliary switch contact rotate fast, and then auxiliary switch contact and the inside fuse contact of net cabinet, and then make the inside fusible core of fuse take place the fusing rapidly, make the net cabinet outage, realize parallelly connected ground connection, improve device moving speed and outage speed, and then guaranteed the safety of net cabinet in the at utmost, realize the purpose of quick outage, guarantee fortune dimension personnel's safety, the probability of occurence of failure is reduced.
Description
Technical Field
The invention relates to the technical field of a network cabinet, in particular to an auxiliary grounding switch of an environment-friendly gas insulation ring main unit.
Background
At present, with the rapid development of economy in China, the construction of a power grid and the transformation of an urban network are deepened continuously, a large number of electric equipment are increased, and meanwhile, the requirements on power supply reliability and safety are higher and higher. High-voltage switchgear has also increased substantially. The terminal type user more adopts prepackage type box-type substation, and this product is integrated to an outdoor box with high-tension loop-network cabinets, transformer, low-voltage switchgear in, can realize quick hoist and mount and use at once, is liked by the user very much. Inside high-voltage ring main unit, along with national environmental protection, more and more users cut the gaseous insulating ring main unit of beginning to use of environmental protection step by step, adopt the gaseous insulating combined electrical apparatus looped netowrk cabinet of environmental protection to transformer protection, this product internally mounted fuse, when transformer and power supply line break down, can cut off the power supply at once, realize quick protection, after troubleshooting, the fuse need in time change inside fusible core, because the fuse both ends all have suspension induction potential, in order to ensure fortune dimension personnel's personal safety, need carry out ground connection in parallel to the fuse both ends, prevent 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. Tests show that when the oil immersed transformer is short-circuited, in order to prevent the tank body of the oil tank from deforming or even cracking, the fault must be removed within 20 ms. If the circuit breaker is adopted for protection, the fastest full-on-off time (relay protection action time plus the arcing time of the inherent action time of the circuit breaker) of the circuit breaker generally needs about 3 cycles (60ms), and the current-limiting fuse can remove faults and limit short-circuit current within 10ms, so that the transformer can be effectively protected. Therefore, it is preferable to adopt a load switch-fuse combination electrical switching apparatus for protecting a transformer having a capacity of 630kVA or less.
When the earthing switch is connected with the fuse, the earthing switch is required to be connected with the fuse within 20ms, however, when some existing earthing switches are connected with the fuse, the earthing switch is driven to move by a power output device inside a net cabinet, and then the earthing switch is connected with the fuse, so that the two ends of the fuse are grounded in parallel, electric shock accidents are prevented, when the existing earthing switch operates by the power output device inside the net cabinet, the transmission is slow, the time for connecting an auxiliary switch contact with the fuse is easy to prolong, and when a short circuit occurs, the auxiliary switch contact cannot be rapidly connected with the fuse, and therefore the earthing switch capable of operating rapidly is required.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the auxiliary grounding switch of the environment-friendly gas insulation ring main unit, which has the advantages of conveniently and quickly connecting the contact of the auxiliary switch with the fuse and the like, and solves the problem that the time for connecting the contact of the auxiliary switch with the fuse is easily prolonged due to slow transmission when the grounding switch is operated through a power output device in the ring main unit.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: an auxiliary earthing switch of an environment-friendly gas insulation ring main unit comprises a triangular switch base and an auxiliary positioning base, wherein the top of the switch base is fixedly provided with an earthing switch base, the surface of the earthing switch base is provided with a straight chute, the straight chute is provided with a sliding connection assembly, the surface of the sliding connection assembly is rotatably connected with a vertical transmission pull rod, the surface of the vertical transmission pull rod is rotatably connected with a connection crank arm, the surface of the sliding connection assembly is provided with an inclined chute in an inclined shape, the inside of the inclined chute is slidably connected with a connection slide rod, one end of the connection slide rod, which is far away from the inclined chute, is fixedly connected with a transverse pull rod, the straight chute, the inclined chute and the transverse chute are internally provided with the same sliding device, the switch base is provided with a power assisting device, the auxiliary positioning base is rotatably connected with a longitudinal transmission rod, and the surface of the longitudinal transmission rod is fixedly connected with three contact supports arranged at equal intervals, be provided with the auxiliary switch contact on the contact support, the clockwork spring has been cup jointed in the rotation on the both ends that vertical transfer line is close to the assistance-localization real-time base, the fixed surface of the relative one end of two clockwork springs and vertical transfer line is connected, the one end that two clockwork springs carried on the back mutually is fixed connection on the assistance-localization real-time base, two backup pads of fixedly connected with on the vertical transfer line, the inside of two backup pads is provided with latch device, the fixed surface cover of vertical transfer line has cup jointed the gear, rotate on the horizontal pull rod and be connected with the rack with gear engagement, the top fixedly connected with elastic spring of rack, elastic spring's upper end is fixed connection on the horizontal pull rod.
Preferably, a transverse sliding groove is formed in the switch base, a connecting sliding rod fixedly connected with the transverse pull rod is connected to the inner portion of the transverse sliding groove in a sliding mode, and a connecting sliding rod slidably connected with the straight sliding groove is connected to the sliding connection assembly in a sliding mode.
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 embedded in the transverse sliding groove in a sliding mode, the sliding groove in the shape of a semicircle is formed in the transverse sliding groove, the ball is connected to the inside of the sliding groove in a rolling mode, and the surface of the ball is connected with the outer surface of the rubber belt in a rolling mode.
Preferably, booster unit includes the dwang, and the dwang rotates in switch base's inside to be connected, and the fixed surface of dwang is connected with the seesaw, and the upper end and the horizontal pull rod contact of seesaw, the lower extreme of seesaw rotate and are connected with movable pull rod, and movable pull rod's upper end and sliding connection subassembly rotate to be connected.
Preferably, the dwang is slidingly sleeved with a first torsion spring, 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 dwang, is fixedly connected with the dwang.
Preferably, the upper end of the contact support is fixedly connected with a transmission shaft, the auxiliary switch contact is rotatably sleeved on the surface of the transmission shaft, the transmission shaft is rotatably sleeved with two second torsion springs, one ends, opposite to the two second torsion springs, are fixedly connected with the surface of the transmission shaft, and the other ends, opposite to the second torsion springs, are fixedly connected with the auxiliary switch contact.
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 formed 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 clamped with the clamping block 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 slide rail, one end, close to the slide rail, of the rack is connected to the slide rail in a sliding mode, the slide rail is connected to the slide rail in a sliding mode, the top of the slide rail is fixedly connected with a stop block in a trapezoidal shape, a tension spring is fixedly mounted on the slide plate, and one end, far away from the slide plate, of the tension spring is fixedly connected to the inside of the slide rail.
Preferably, a positioning shaft is fixedly mounted at one sliding end of the rack inside the sliding rail, a hook is sleeved on the surface of the positioning shaft in a rotating mode, an included angle formed by the hook and the rack is clamped with the sliding plate, a third torsion spring is sleeved on the positioning shaft, and two torsion arms of the third torsion spring are fixedly connected with the hook and the rack respectively.
(III) advantageous effects
Compared with the prior art, the invention provides the auxiliary grounding switch of the environment-friendly gas insulation ring main unit, which has the following beneficial effects:
1. the auxiliary grounding switch of the environment-friendly gas insulation ring main unit is characterized in that the transverse pull rod moves and is obliquely arranged, so that when the transverse pull rod moves forwards, the rack slides in the slide rail, when the rack is contacted with the stop block, the rack slides along the slope on the stop block, the rack rotates, the elastic spring is extruded, the rack is separated from the gear, meanwhile, as the transverse pull rod moves, the clamping block is separated from the clamping groove, the longitudinal transmission rod is not blocked, the longitudinal transmission rod rapidly rotates under the torsion action of the spring, the contact support and the auxiliary switch contact rapidly rotate, the auxiliary switch contact is contacted with a fuse inside the ring main unit, the fuse core inside the fuse core is rapidly fused, the ring main unit is powered off, parallel grounding is realized, and the running speed and the power-off speed of the device are improved, and then guaranteed the safety of net cabinet to the at utmost, realized the purpose of quick outage, guaranteed fortune dimension personnel's safety, reduced the probability that the accident took place.
2. The environment-friendly gas insulation ring main unit auxiliary grounding switch is characterized in that an auxiliary positioning base and a switch base are fixed inside a net cabinet through bolts, a connecting crank arm is fixedly connected with a power output end in the net cabinet, the connecting crank arm eccentrically rotates, the connecting crank arm rotates to drive a vertical transmission pull rod to move upwards, a sliding connection assembly is further pulled to move upwards, a connecting slide rod on the sliding connection assembly slides inside a straight chute, the sliding connection assembly drives a movable pull rod to move upwards, one end of a seesaw is further pulled to move upwards, the other end of the seesaw can provide thrust for a transverse pull rod, and further provides a sliding trend for the transverse pull rod, the transverse pull rod is conveniently pushed to move, so that the sliding smoothness of the transverse pull rod is ensured, the smoothness of the whole device is ensured, the phenomenon of clamping is avoided, and the operating speed of the device is influenced, the running speed of the device is increased, and then the quick power-off is realized.
3. The auxiliary grounding switch of the environment-friendly gas insulation ring main unit can enable the connecting slide bar to slide in the inclined sliding groove when the sliding connection assembly moves upwards, further enable the connecting slide bar to slide in the inclined sliding groove, further enable the transverse pull rod to move, further enable the connecting slide bar on the transverse pull rod to slide in the transverse sliding groove, enable the connecting slide bar on the sliding connection assembly to slide in the straight sliding groove, further enable the connecting slide bar to drive the rubber belt to slide in the groove in the process of sliding in the transverse sliding groove, further enable the rubber belt and the ball to generate friction force to drive the ball to roll in the sliding groove, further reduce the friction force of the connecting slide bar in the sliding in the transverse sliding groove, ensure the smoothness of the operation of the device, avoid the phenomenon of blocking, further improve the operation speed of the device, and facilitate the realization of quick power failure, the speed is increased for the operation of the whole device.
4. This earthing switch is assisted to environmental protection gas insulation 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 bar is gliding, to a great extent has reduced the frictional force of device, improves gliding smoothness degree.
5. This earthing switch is assisted to environmental protection gas insulation looped netowrk cabinet, when the auxiliary switch contact carries out high-speed joint with the fuse, because the auxiliary switch contact can collide with the fuse rapidly, and then when the auxiliary switch contact striking fuse contacts, the auxiliary switch contact can rotate on the surface of transmission shaft, and then make two second torsion spring take place deformation, and then reduce the impact of auxiliary switch contact to the 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 the phenomenon of breaking away from.
6. In the auxiliary grounding switch of the environment-friendly gas insulation ring main unit, the rack moves backwards, so that one end of the sliding plate is clamped in an included angle formed by the hook and the rack, when the rack moves backwards, the gear is driven to rotate and the sliding plate slides in the sliding rail, the tension spring is extruded to deform the clockwork spring, and the transverse pull rod extrudes the clamping block when the clamping block is contacted with the transverse pull rod, thereby extruding the return spring, further contracting the fixture block into the limiting slide way, when the fixture block is contacted with the clamping groove, the fixture block is reset by the elastic force of the return spring, and then the inside of card income draw-in groove conveniently restricts clockwork spring and assistance-localization real-time base, and then guarantees the smoothness degree that the device used next time, improves the reuse of device, improves the restriction effect to vertical transfer line, provides power for next removal.
7. This earthing switch is assisted to environmental protection gas insulation looped netowrk cabinet, because the draw-in groove is greater than the fixture block, and then when the fixture block card advances the inside of draw-in groove, can continue to remove, and then because horizontal pull rod and rack continue to remove, and then make tension spring take place maximum deformation, and then the slide receives and blocks, and then unable continuation slip, and then deformation takes place for third torsion spring, make the crotch rotate on the surface of location axle, and then the slide is not receiving and blocks, and then reset through tension spring's spring action, and then accomplish the effect that resets of whole device, for rack breaks away from the gear next time and creates the condition, be favorable to the used repeatedly of whole device, improve the number of times of use of device.
Drawings
Fig. 1 is a schematic structural view of an auxiliary grounding switch of the environment-friendly gas-insulated ring main unit according to the present invention;
fig. 2 is a schematic structural diagram of an auxiliary grounding switch of the environment-friendly gas-insulated ring main unit according to the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic diagram 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 hook structure of the present invention.
In the figure: the switch comprises a switch base 1, a grounding switch base 2, a sliding connection assembly 3, a vertical transmission pull rod 4, a connecting crank arm 5, a straight sliding groove 6, a connecting sliding rod 7, an inclined sliding groove 8, a transverse pull rod 9, a rack 10, a supporting plate 11, a clamping groove 12, a clamping block 13, an auxiliary switch contact 14, a contact support 15, a clockwork spring 16, an auxiliary positioning base 17, a rubber belt 18, a sliding groove 19, a seesaw 20, a first torsion spring 21, a rotating rod 22, a ball 23, a transverse sliding groove 24, a transmission shaft 25, a second torsion spring 26, a longitudinal transmission rod 27, a return spring 28, a limiting slideway 29, an outer rod 30, a gear 31, an elastic spring 32, a sliding rail 33, a tension spring 34, a stop 35, a sliding plate 36, a movable pull rod 37, a bent hook 38, a positioning shaft 39 and a third torsion spring 40.
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. 1-6, the present invention provides a new technical solution: the auxiliary earthing switch of the environment-friendly gas insulation ring main unit comprises a triangular switch base 1 and an auxiliary positioning base 17, an earthing switch base 2 is fixedly installed at the top of the switch base 1, a straight sliding groove 6 is formed in the surface of the earthing switch base 2, a sliding connection assembly 3 is arranged on the straight sliding groove 6, a vertical transmission pull rod 4 is rotatably connected to the surface of the sliding connection assembly 3, a connection crank arm 5 is rotatably connected to the surface of the vertical transmission pull rod 4, an inclined sliding groove 8 in an inclined shape is formed in the surface of the sliding connection assembly 3, a connection sliding rod 7 is slidably connected to the inner portion of the inclined sliding groove 8, a transverse pull rod 9 is fixedly connected to one end, far away from the inclined sliding groove 8, of the connection sliding rod 7, a transverse sliding groove 24 is formed in the switch base 1, a connection sliding rod 7 fixedly connected with the transverse pull rod 9 is also slidably connected to the inner portion of the transverse sliding groove 24, a connection sliding rod 7 slidably connected with the straight sliding groove 6 is also fixedly connected to the sliding connection assembly 3, the same sliding devices are arranged inside the straight sliding chute 6, the inclined sliding chute 8 and the transverse sliding chute 24;
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 embedded in a transverse sliding groove 24 in a sliding mode, a sliding groove 19 in a semicircular shape is formed in the transverse sliding groove 24, a ball 23 is connected to the inside of the sliding groove 19 in a rolling mode, the surface of the ball 23 is connected with the outer surface of the rubber belt 18 in a rolling mode, 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 rotatably connected inside 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 rotatably connected with a movable pull rod 37, the upper end of the movable pull rod 37 is rotatably connected with the sliding connection assembly 3, a first torsion spring 21 is slidably sleeved on the rotating rod 22, one end, close to the sliding connection assembly 3, of the first torsion spring 21 is fixedly connected with the sliding connection assembly 3, one end, close to the rotating rod 22, of the first torsion spring 21 is fixedly connected with the rotating rod 22, a longitudinal transmission rod 27 is rotatably connected to the auxiliary positioning base 17, three contact supports 15 which are arranged at equal intervals are fixedly connected to 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, the opposite ends of the two second torsion springs 26 are fixedly connected with the surface of the transmission shaft 25, the opposite ends of the second torsion springs 26 are fixedly connected with the auxiliary switch contact 14, the two ends of the longitudinal transmission rod 27 close to the auxiliary positioning base 17 are rotatably sleeved with the spiral springs 16, the opposite ends of the two spiral springs 16 are fixedly connected with the surface of the longitudinal transmission rod 27, the opposite ends of the two spiral springs 16 are fixedly connected on the auxiliary positioning base 17, the longitudinal transmission rod 27 is fixedly connected with two support plates 11, and clamping devices are arranged inside the two support plates 11;
the clamping device comprises an outer rod 30, the outer rod 30 is fixedly connected inside the two support plates 11, a limiting slide way 29 is arranged inside the outer rod 30, a semicircular clamping block 13 is connected inside the limiting slide way 29 in a sliding mode, 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 limiting slide way 29, a clamping groove 12 clamped with the clamping block 13 is formed in the bottom of one end, in contact with the clamping block 13, of the transverse pull rod 9, a gear 31 is fixedly sleeved on the surface of the longitudinal transmission rod 27, a rack 10 meshed with the gear 31 is rotatably connected to 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 to the transverse pull rod 9;
a slide rail 33 is fixedly installed on the auxiliary positioning base 17, one end of the rack 10 close to the slide rail 33 is connected in the slide rail 33 in a sliding manner, a slide plate 36 is connected in the slide rail 33 in a sliding manner, a stopper 35 in the shape of a trapezoid is fixedly connected to the top of the slide plate 36, a tension spring 34 is fixedly installed on the slide plate 36, one end of the tension spring 34 far away from the slide plate 36 is fixedly connected with the inside of the slide rail 33, a positioning shaft 39 is fixedly installed at one end of the rack 10 sliding in the slide rail 33, 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 slide 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 respectively fixedly connected with the hook 38 and the rack 10;
the auxiliary positioning base 17 and the switch base 1 are fixed inside a net cabinet through bolts, the connecting crank arm 5 is fixedly connected with a power output end in the net cabinet, 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 further pulled to move upwards, the connecting slide rod 7 on the sliding connection assembly 3 slides inside the straight slide groove 6, the sliding connection assembly 3 drives the movable pull rod 37 to move upwards, one end of the seesaw 20 is further pulled to move upwards, the other end of the seesaw 20 can provide thrust for the transverse pull rod 9, and further provides a sliding trend for the transverse pull rod 9, the transverse pull rod 9 is conveniently pushed to move, the sliding fluency of the transverse pull rod 9 is further ensured, the fluency of the whole device is ensured, the phenomenon of blocking is avoided, and the operating speed of the device is influenced, the running speed of the device is increased, so that rapid power failure is realized, when the seesaw 20 rotates, the first torsion spring 21 contracts, so that the first torsion spring 21 can be conveniently reset when the sliding connection assembly 3 moves downwards, and the smoothness of resetting is improved;
when the sliding connection assembly 3 moves upwards, the connecting slide rod 7 can slide in the inclined sliding groove 8, further, because the inclined sliding groove 8 is inclined, the connecting slide rod 7 can slide in the inclined sliding groove 8, further, the transverse pull rod 9 can move, further, because the connecting slide rod 7 on the transverse pull rod 9 slides in the transverse sliding groove 24, the connecting slide rod 7 on the sliding connection assembly 3 can slide in the straight sliding groove 6, further, because the part of the switch base 1, which is overlapped with the transverse sliding groove 24, is provided with a groove in sliding connection with the rubber belt 18, the groove has the function of limiting the rubber belt 18, the rubber belt 18 can only slide in the groove, and further, in the process that the connecting slide rod 7 slides in the transverse sliding groove 24, the rubber belt 18 is driven to slide in the groove, further, the rubber belt 18 and the ball 23 generate friction force to drive the ball 23 to roll in the sliding groove 19, the friction force of the connecting sliding rod 7 sliding in the transverse sliding groove 24 is further reduced, the smoothness of the device operation is guaranteed, the phenomenon of blocking is avoided, the operation speed of the device is further improved, the rapid power-off is convenient to realize, and the speed is increased for the operation of the whole device;
because the same sliding devices are arranged inside the straight sliding chute 6, the inclined sliding chute 8 and the transverse sliding chute 24, when the three connecting sliding rods 7 slide, the friction force of the device is reduced to a great extent, and the sliding fluency is improved;
because the transverse pull rod 9 moves and the transverse pull rod 9 is arranged obliquely, when the transverse pull rod 9 moves forwards, the rack 10 slides in the slide rail 33, and when the rack 10 contacts the stop block 35, the rack 10 slides along the slope on the stop block 35, so that the rack 10 rotates, the elastic spring 32 is extruded, the rack 10 is separated from the gear 31, meanwhile, the fixture block 13 is separated from the clamping groove 12 due to the movement of the transverse pull rod 9, so that the longitudinal transmission rod 27 is not blocked, and further, the longitudinal transmission rod 27 rotates rapidly under the torsion action of the spiral spring 16, so that the contact support 15 and the auxiliary switch contact 14 rotate rapidly, the auxiliary switch contact 14 contacts with the fuse inside the net cabinet, and further, the fuse core inside the fuse is rapidly fused, the net cabinet is powered off, parallel grounding is realized, and the operating speed and the power-off speed of the device are improved, the safety of the net cabinet is guaranteed to the maximum extent, the purpose of quick power off is achieved, the safety of operation and maintenance personnel is guaranteed, the transverse pull rod 9 continuously moves, the rack 10 slides on the surface of the stop block 35, the rack 10 can enter the sliding rail 33 again to slide when not sliding on the surface of the stop block 35, and the rack 10 is meshed with the gear 31 again when being separated from the sliding rail 33;
when the auxiliary switch contact 14 is in quick connection with the fuse, the auxiliary switch contact 14 can collide with the fuse rapidly, and then when the auxiliary switch contact 14 collides with the fuse for contact, the auxiliary switch contact 14 can rotate on the surface of the transmission shaft 25, so that the two second torsion springs 26 deform, and further the impact force of the auxiliary switch contact 14 on the fuse is reduced, the safety of the fuse is protected, the attachment degree between the auxiliary switch contact 14 and the fuse is ensured, the tightness of the connection between the auxiliary switch contact 14 and the fuse is ensured, and the separation phenomenon is avoided;
when the connecting crank arm 5 continues to rotate, because the connecting crank arm 5 moves eccentrically when being 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, the sliding plate 36 slides in the sliding rail 33 to extrude the tension spring 34, the longitudinal transmission rod 27 rotates reversely, the clockwork spring 16 deforms, 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, because one end of the transverse pull rod 9 is arc-shaped, the transverse pull rod 9 extrudes the clamping block 13, the return spring 28 is extruded, and the clamping block 13 contracts into the limiting slide way 29, when the fixture block 13 is in contact with the clamping groove 12, the fixture block 13 is reset through the elastic force of the reset spring 28 and then clamped into the clamping groove 12, so that the clockwork spring 16 and the auxiliary positioning base 17 are conveniently limited, the smoothness of the next use of the device is further ensured, the reutilization of the device is improved, the limiting effect on the longitudinal transmission rod 27 is improved, and power is provided for the next movement;
because draw-in groove 12 is greater than fixture block 13, and then when fixture block 13 blocks into the inside of draw-in groove 12, can continue to move, and then because horizontal pull rod 9 and rack 10 continue to move, and then make tension spring 34 take place the biggest deformation, and then slide 36 receives and blocks, and then can't continue to slide, and then third torsion spring 40 takes place deformation, make crotch 38 rotate on the surface of location axle 39, and then slide 36 is not receiving and blocks, and then reset through tension spring 34's spring action, and then accomplish the effect that resets of whole device, create the condition for rack 10 breaks away from gear 31 next time, be favorable to the used repeatedly of whole device, improve the number of times of use of device.
The working principle is as follows:
this earthing switch is assisted to environmental protection gas insulation looped netowrk cabinet, when using:
firstly, fixing an auxiliary positioning base 17 and a switch base 1 inside a net cabinet through bolts, fixedly connecting a connecting crank arm 5 with a power output end in the net cabinet, enabling the connecting crank arm 5 to eccentrically rotate, further enabling the connecting crank arm 5 to rotate to drive a vertical transmission pull rod 4 to move upwards, further pulling a sliding connection assembly 3 to move upwards, enabling a connecting slide rod 7 on the sliding connection assembly 3 to slide inside a straight slide groove 6, further enabling the sliding connection assembly 3 to drive a movable pull rod 37 to move upwards, further pulling one end of a seesaw 20 to move upwards, enabling the other end of the seesaw 20 to provide thrust for a transverse pull rod 9, and further providing a sliding trend for the transverse pull rod 9;
secondly, when the sliding connection assembly 3 moves upwards, the connecting slide rod 7 can slide in the inclined slide groove 8, so that the connecting slide rod 7 can slide in the inclined slide groove 8, and the transverse pull rod 9 can move, and further, as the connecting slide rod 7 on the transverse pull rod 9 slides in the transverse slide groove 24, the connecting slide rod 7 on the sliding connection assembly 3 can slide in the straight slide groove 6, and further, in the process that the connecting slide rod 7 slides in the transverse slide groove 24, the rubber belt 18 is driven to slide in the groove, and further, the rubber belt 18 and the ball 23 generate friction force to drive the ball 23 to roll in the slide groove 19;
thirdly, as the same sliding devices are arranged inside the straight sliding chute 6, the inclined sliding chute 8 and the transverse sliding chute 24, when the three connecting sliding rods 7 slide, the friction force of the device is reduced to a great extent, and the sliding fluency is improved;
fourthly, as 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 slide rail 33, and when the rack 10 is contacted with the stop block 35, the rack 10 slides along the slope on the stop block 35, so that the rack 10 rotates, the elastic spring 32 is extruded, the rack 10 is separated from the gear 31, meanwhile, as the transverse pull rod 9 moves, the fixture block 13 is separated from the clamping groove 12, so that the longitudinal transmission rod 27 is not blocked, and further, the longitudinal transmission rod 27 rapidly rotates under the torsion action of the clockwork spring 16, so that the contact support 15 and the auxiliary switch contact 14 rapidly rotate;
fifthly, when the auxiliary switch contact 14 is in quick connection with the fuse, since the auxiliary switch contact 14 can rapidly collide with the fuse, when the auxiliary switch contact 14 collides with the fuse for contact, the auxiliary switch contact 14 can rotate on the surface of the transmission shaft 25, and then the two second torsion springs 26 are deformed;
sixthly, when the connecting crank arm 5 continues to rotate, due to eccentric motion when the connecting crank arm 5 is connected, the vertical transmission pull rod 4 is further moved downwards, the transverse pull rod 9 is further moved backwards, the rack 10 is further moved 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 is moved backwards, the gear 31 is driven to rotate, the sliding plate 36 slides in the sliding rail 33 to extrude the tension spring 34, the longitudinal transmission rod 27 rotates reversely, the clockwork spring 16 is deformed, the auxiliary switch contact 14 is not in contact with the fuse, when the fixture block 13 is in contact with the transverse pull rod 9, due to the fact that one end of the transverse pull rod 9 is arc-shaped, the transverse pull rod 9 extrudes the fixture block 13, the return spring 28 is extruded, and the fixture block 13 is contracted into the limiting slide way 29, when the latch 13 contacts the card slot 12, the latch 13 is reset by the elastic force of the reset spring 28, and then is clamped into the card slot 12;
seventhly, the clamping groove 12 is larger than the clamping block 13, so that when the clamping block 13 is clamped into the clamping groove 12, the clamping block can continuously move, the transverse pull rod 9 and the rack 10 continuously move, the tension spring 34 is enabled to deform to the maximum extent, the sliding plate 36 is blocked and cannot slide continuously, the third torsion spring 40 deforms, the hook 38 rotates on the surface of the positioning shaft 39, the sliding plate 36 is not blocked, and the elastic force of the tension spring 34 is used for resetting.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. Supplementary earthing switch of environmental protection gas insulation looped netowrk cabinet, including triangular switch base (1) and assistance-localization real-time base (17), its characterized in that: the switch is characterized in that a grounding switch base (2) is fixedly installed at the top of the switch base (1), a straight sliding groove (6) is formed in the surface of the grounding switch base (2), a sliding connection assembly (3) is arranged on the straight sliding groove (6), a vertical transmission pull rod (4) is rotatably connected to the surface of the sliding connection assembly (3), a connection crank arm (5) is rotatably connected to the surface of the vertical transmission pull rod (4), an inclined sliding groove (8) which is inclined in shape is formed in the surface of the sliding connection assembly (3), a connection sliding rod (7) is slidably connected to the inner portion of the inclined sliding groove (8), a transverse pull rod (9) is fixedly connected to one end, far away from the inclined sliding groove (8), of the connection sliding rod (7), the same sliding devices are arranged in the straight sliding groove (6), the inclined sliding groove (8) and the transverse sliding groove (24), and a power assisting device is arranged on the switch base (1), a longitudinal transmission rod (27) is rotatably connected to the auxiliary positioning base (17), three contact supports (15) which are arranged at equal intervals are fixedly connected to the surface of the longitudinal transmission rod (27), an auxiliary switch contact (14) is arranged on each contact support (15), springs (16) are rotatably sleeved on the two ends, close to the auxiliary positioning base (17), of the longitudinal transmission rod (27), one ends, opposite to each other, of the two springs (16) are fixedly connected to the surface of the longitudinal transmission rod (27), one ends, opposite to each other, of the two springs (16) are fixedly connected to the auxiliary positioning base (17), two support plates (11) are fixedly connected to the longitudinal transmission rod (27), clamping devices are arranged inside the two support plates (11), a gear (31) is fixedly sleeved on the surface of the longitudinal transmission rod (27), and a rack (10) meshed with the gear (31) is rotatably connected to the transverse pull rod (9), the top of the rack (10) is fixedly connected with an elastic spring (32), and the upper end of the elastic spring (32) is fixedly connected on the transverse pull rod (9).
2. The auxiliary grounding switch of the environmental protection gas insulation ring main unit according to claim 1, wherein: the switch base (1) is provided with a transverse sliding groove (24), the inside of the transverse sliding groove (24) is also slidably connected with a connecting sliding rod (7) fixedly connected with a transverse pull rod (9), and the sliding connection assembly (3) is also fixedly connected with a connecting sliding rod (7) slidably connected with a straight sliding groove (6).
3. The auxiliary grounding switch of the environmental protection gas insulation ring main unit according to claim 1, wherein: 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 embedded in the transverse sliding groove (24) in a sliding mode, the sliding groove (19) in a semicircular shape is formed in the transverse sliding groove (24), the ball (23) is connected to the inner portion of the sliding groove (19) in a rolling mode, and the surface of the ball (23) is connected with the outer surface of the rubber belt (18) in a rolling mode.
4. The auxiliary grounding switch of the environmental protection gas insulation ring main unit according to claim 1, wherein: the power assisting device comprises a rotating rod (22), the rotating rod (22) is rotatably connected inside 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), a movable pull rod (37) is rotatably connected to the lower end of the seesaw (20), and the upper end of the movable pull rod (37) is rotatably connected with the sliding connection assembly (3).
5. The environment-friendly gas-insulated ring main unit auxiliary grounding switch according to claim 4, wherein: dwang (22) are gone up the slip and are cup jointed first torsion spring (21), and one end and sliding connection subassembly (3) fixed connection that first torsion spring (21) are close to sliding connection subassembly (3), and one end and dwang (22) fixed connection that first torsion spring (21) are close to dwang (22).
6. The auxiliary grounding switch of the environmental protection gas insulation ring main unit according to claim 1, wherein: the upper end fixedly connected with transmission shaft (25) of contact support (15), auxiliary switch contact (14) rotate on the surface of transmission shaft (25) and cup joint, rotate on transmission shaft (25) and cup joint two second torsion spring (26), the relative one end of two second torsion spring (26) and the fixed surface connection of transmission shaft (25), the one end that second torsion spring (26) carried on the back mutually and auxiliary switch contact (14) fixed connection.
7. The auxiliary grounding switch of the environmental protection gas insulation ring main unit according to claim 1, wherein: clamping device includes outer pole (30), and outer pole (30) are at the inside fixed connection of two backup pads (11), and spacing slide (29) have been seted up to the inside of outer pole (30), and the inside sliding connection of spacing slide (29) has semicircular fixture block (13), and the bottom fixedly connected with reset spring (28) of fixture block (13), the lower extreme of reset spring (28) and the bottom fixed connection of spacing slide (29), draw-in groove (12) with fixture block (13) joint are seted up to the bottom of horizontal pull rod (9) and fixture block (13) contact one end.
8. The auxiliary grounding switch of the environmental protection gas insulation ring main unit according to claim 1, wherein: fixed mounting has slide rail (33) on auxiliary positioning base (17), and rack (10) are close to the inside sliding connection of one end in slide rail (33) of slide rail (33), and the inside sliding connection of slide rail (33) has slide (36), and the top fixedly connected with shape of slide (36) is trapezoidal dog (35), and fixed mounting has tension spring (34) on slide (36), and the one end that slide (36) were kept away from in tension spring (34) and the inside fixed connection of slide rail (33).
9. The auxiliary grounding switch of the environmental protection gas insulation ring main unit according to claim 8, wherein: rack (10) have location axle (39) at the inside gliding one end fixed mounting of slide rail (33), the surface of location axle (39) is rotated and is cup jointed crotch (38), contained angle and slide (36) joint that crotch (38) and rack (10) formed, cup jointed third torsion spring (40) on location axle (39), two torsion arms of third torsion spring (40) respectively with crotch (38) and rack (10) fixed connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN113643926A true CN113643926A (en) | 2021-11-12 |
| CN113643926B CN113643926B (en) | 2024-03-01 |
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|---|---|
| CN113643926B (en) | 2024-03-01 |
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