CN118888365B - A dual power supply isolating switch with leakage protection in underground mines - Google Patents
A dual power supply isolating switch with leakage protection in underground mines Download PDFInfo
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- CN118888365B CN118888365B CN202411394255.0A CN202411394255A CN118888365B CN 118888365 B CN118888365 B CN 118888365B CN 202411394255 A CN202411394255 A CN 202411394255A CN 118888365 B CN118888365 B CN 118888365B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/60—Auxiliary means structurally associated with the switch for cleaning or lubricating contact-making surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/08—Bases; Stationary contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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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
- H01H31/023—Base and stationary contacts mounted thereon
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention belongs to the technical field of electrical switches, in particular to a double-power isolating switch with leakage protection in a well, which comprises an installation seat, wherein the front side of the installation seat is provided with a controller, the front side of controller rotates the grafting has the knob that is used for switching power, the bilateral symmetry of controller is provided with the switch body, a plurality of wiring holes have all been seted up to the top and the bottom of switch body, fixed mounting has the terminal in the wiring hole. According to the invention, the connecting assembly is arranged, in the whole process of switching the power supply, the knob on the controller not only realizes the switching operation of the power supply, but also cuts off the connection operation with the corresponding switch body along with the rotation of the connecting ring in the corresponding switch body when one power supply is used, so that the electric leakage phenomenon caused by the environmental humidity is avoided, and the underground electricity safety of the electric explosion-proof rubber-tyred vehicle after the power supply is switched is greatly improved.
Description
Technical Field
The invention belongs to the technical field of electrical switches, and particularly relates to a double-power-supply isolating switch with an underground leakage protection function.
Background
The underground explosion-proof trackless rubber-tyred vehicle for the coal mine has the advantages of flexible maneuvering operation and high transportation efficiency, and is widely applied to various mining areas in China. With the development of electric automobile technology and the improvement of the requirements of underground coal mine on energy conservation and emission reduction, various novel pure electric explosion-proof trackless rubber-tyred vehicles taking explosion-proof storage batteries as power sources are generated, and the traditional diesel explosion-proof trackless rubber-tyred vehicles are gradually replaced by virtue of the characteristics of low noise and zero pollution. But is limited by the development of mine safety regulation requirements and chemical battery technology, the electric explosion-proof trackless rubber-tyred vehicle needs explosion-proof treatment by using electric components such as a motor, a storage battery and the like, and the dead weight of the components subjected to the explosion-proof treatment is greatly improved, so that the specific energy of the explosion-proof storage battery is lower, and the endurance mileage of the vehicle is seriously insufficient, so that the vehicle needs frequent lifting and charging, the working efficiency of the electric explosion-proof rubber-tyred vehicle is seriously restricted, and the underground continuous operation requirement can not be completely met.
In order to solve the problem, the existing electric explosion-proof rubber-tyred vehicle is generally provided with a dual-power structure, electric energy is replaced by utilizing clean ground energy to generate electricity, the key technology of intelligent charging and changing of ground photovoltaic and underground power supply dual-power is researched and developed, the energy supplementing requirement of the underground electric vehicle is met, the problem of insufficient endurance mileage of the electric explosion-proof rubber-tyred vehicle is solved, and the vehicle utilization rate is improved. When the dual power supply is used for supplying power, a dual power supply isolating switch is generally adopted for controlling and switching the dual power supply. However, due to the fact that the underground environment is moist, the electric leakage phenomenon of the other power supply cannot occur due to the moist environment when the power supply of the power supply is switched only by the aid of the switching function of the controller of the dual-power isolating switch, and therefore the safety of the electric power consumption of the electric anti-explosion rubber-tyred vehicle cannot be guaranteed.
Therefore, it is necessary to provide a dual power isolation switch with leakage protection downhole to solve the above-mentioned problems.
Disclosure of Invention
The invention provides a double-power isolating switch with leakage protection in a well, aiming at the problems, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a take dual supply isolator of electric leakage protection in pit, includes the mount pad, the controller is installed to the front side of mount pad, the front side of controller rotates the grafting has the knob that is used for switching power supply, the bilateral symmetry of controller is provided with the switch body, a plurality of wiring holes have all been seted up to the top and the bottom of switch body, wiring downthehole fixed mounting has the terminal, two spread grooves have been seted up to switch body front side level, two the spread groove is relative with a plurality of wiring hole place areas of switch body top and bottom respectively, the spread groove has been seted up the spread hole with the relative position of wiring hole, and the wiring hole communicates with the wiring hole that corresponds, the position that is provided with coupling assembling in the spread groove and the coupling hole is relative, the inside of controller is provided with the actuating assembly that drives coupling assembling and remove, coupling assembling's top and bottom all are provided with the metal connecting block, one of them metal connecting block insert in the coupling hole and with the terminal fixed connection that corresponds, another metal fixed connection is on the spread groove that corresponds one side and the inside protection casing of switch body and the protection casing that the side wall is connected with the switch body, two side protection casing, the protection casing that just has the electric connection groove is all installed to the side.
Further, coupling assembling includes the go-between, the go-between divide into two metal sections and two insulating sections that are identical, and the outside of go-between all keeps laminating with two metal connecting blocks that correspond, two the metal section is alternately distributed with two insulating sections, and fixedly connected with metal pole between the opposite one side of two metal sections, vertically run through the grafting between the front and back side at metal pole middle part has insulating pivot, the rear end and the spread groove rear side cell wall of pivot rotate perpendicularly and are connected, the front end of pivot rotates and is connected with the fixed block, the cell wall fixed connection that fixed block and spread groove are close to spread hole one side, the fixed transmission gear that has cup jointed near the position of front end of pivot.
Further, the drive assembly includes the rack, and tooth and a plurality of drive gear on the rack all keep the meshing, two fixedly connected with U shaped plate between the rack front side in the spread groove, spacing spout has been seted up to switch body front side, the position fixedly connected with spacing slider that U shaped plate and spacing spout are relative, spacing slider slidable mounting is in spacing spout, one side fixedly connected with pull rod that U shaped plate is close to the controller, and the pull rod on two U shaped plates is with knob rotational symmetry, the notch has been run through to one side that the protection casing is close to the controller and the position that the pull rod is relative, and the pull rod is pegged graft in the notch, the part of knob in the controller is fixed to have cup jointed the missing gear, circular gear groove has been seted up to the position that the inside of controller is relative with missing gear, and missing gear is located the gear groove, the slot has all been seted up the slot with the position that two pull rods free ends are relative, and two pull rods slide respectively and peg graft in two slots, one section tooth has evenly distributed with the opposite side of missing gear and tooth can mesh with missing gear.
Further, the knob controls two power supply gears and a neutral position, the neutral position is symmetrically distributed between the two power supply gears, the two power supply gears are opposite to the two switch bodies respectively, in an initial state, the knob is opposite to the neutral position, at the moment, two insulation sections on the connecting rings in the two switch bodies are opposite to corresponding metal connecting blocks respectively, when the knob is opposite to one of the power supply gears, the metal sections of the connecting rings in the switch bodies corresponding to the power supply gears are electrically connected with the corresponding two metal connecting blocks together, and the insulation sections on the connecting rings in the other switch bodies are opposite to the corresponding two metal connecting blocks.
Further, one side that metal connecting block and go-between are relative is the cambered surface design, and the cambered surface can be in the same place with the perfect laminating of go-between surface, the recess has been seted up to one side that metal connecting block and connecting block are relative, sliding grafting has the movable block of metal in the recess, and the one end that the movable block is close to the go-between is also the cambered surface design, and the centre of a circle of movable block cambered surface and the centre of a circle coincidence of metal connecting block cambered surface, one side fixedly connected with metallic telescopic link of one side that the connecting ring was kept away from to the movable block, one end and recess correspondence one side cell wall fixed connection that the telescopic link kept away from, compression spring has been cup jointed on the telescopic link, compression spring's both ends respectively with movable block and recess inner wall fixed connection.
Further, the switch body and the controller are detachably arranged on the mounting seat and are electrically connected together.
Further, the tooth part and the tooth part on the gear lack are distributed in half, and when the tooth part of the gear lack is meshed with the tooth on one pull rod, the tooth part of the gear lack can be opposite to the tooth on the other pull rod.
Further, the ball is evenly installed to the rear side of spacing slider, and the ball can laminate with the inner wall of spacing spout.
Further, a supporting bar is fixedly connected to one side, away from the transmission gear, of the rack, a bar groove is formed in the groove wall on the side, opposite to the supporting bar, of the connecting groove, and the supporting bar is slidably mounted in the bar groove.
Further, a plurality of storage grooves are uniformly formed in the outer side of the connecting ring insulating section, friction strips are fixedly connected in the storage grooves, and the friction strips are flush with the outer side of the connecting ring insulating section.
The invention has the technical effects and advantages that:
1. according to the invention, the connecting assembly is arranged, in the whole process of switching the power supply, besides the switching operation of the power supply, when one power supply is used, the incoming line and the outgoing line on the other power supply can be cut off along with the rotation of the connecting ring in the corresponding switch body and are connected with the corresponding switch body, so that the electric leakage phenomenon caused by the environmental humidity is avoided, and the underground electricity safety of the electric explosion-proof rubber-tyred vehicle after the power supply is switched is greatly improved;
2. According to the invention, the movable blocks are arranged, when the connecting ring is attached to the two opposite metal connecting blocks, the two movable blocks can be attached to the metal sections of the connecting ring under the action of the corresponding compression springs, so that stable electric connection between the metal connecting blocks and the connecting ring is ensured;
3. according to the invention, the support bar is arranged, when the rack drives the transmission gear to rotate, the support bar can slide along the bar-shaped groove, and a support force is provided for the rack from one side of the rack away from the transmission gear, so that the rack and the transmission gear can be stably meshed together;
4. through being provided with the friction strip, at go-between pivoted in-process, the friction strip can polish one side that metal connecting block and movable block are relative with the go-between to avoid metal connecting block and movable block to produce the oxidation because of long-time friction, guarantee that go-between metal segment and metal connecting block and movable block keep stable electric connection.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic perspective view of all but the shield of the present invention;
FIG. 3 is a perspective cross-sectional view of a controller according to the present invention;
FIG. 4 is a schematic perspective view of the switch body, terminal and connection assembly of the present invention;
FIG. 5 is a schematic perspective view of a portion of the drive assembly, ball and support bar of the present invention;
FIG. 6 is a schematic perspective view of the connection assembly, rack and support bar of the present invention;
FIG. 7 is a perspective cross-sectional view of the post and metallic connection block of the present invention;
fig. 8 is a schematic perspective view of a knob and a gear-missing in the present invention.
In the figure, 1, a mounting seat; 2, a controller, 3, a knob, 4, a switch body, 5, a binding post, 6, a connecting groove, 7, a connecting hole, 8, a connecting component, 81, a connecting ring, 811, a metal section, 812, an insulating section, 82, a metal rod, 83, a rotating shaft, 84, a fixed block, 85, a transmission gear, 9, a driving component, 91, a rack, 92, a U-shaped plate, 93, a limit chute, 94, a limit slide block, 95, a pull rod, 96, a gear lack, 97, a gear groove, 98, a slot, 10, a metal connecting block, 11, a protective cover, 12, a power supply gear, 13, a neutral position, 14, a movable block, 15, a telescopic rod, 16, a compression spring, 17, a ball, 18, a support bar, 19, a strip groove, 20 and a friction strip.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
The invention provides a double-power-supply isolating switch with an underground leakage protection as shown in figures 1 to 8, which comprises a mounting seat 1, wherein a controller 2 is mounted on the front side of the mounting seat 1, a knob 3 for switching power supply is rotatably inserted on the front side of the controller 2, switch bodies 4 are symmetrically arranged on two sides of the controller 2, a plurality of wiring holes are formed in the top and the bottom of the switch bodies 4, a wiring post 5 is fixedly mounted in each wiring hole, two connecting grooves 6 are horizontally formed in the front side of the switch bodies 4, the two connecting grooves 6 are respectively opposite to the areas where the plurality of wiring holes in the top and the bottom of the switch bodies 4 are located, connecting holes 7 are formed in the positions where the connecting grooves 6 are opposite to the wiring holes in a penetrating manner, the connecting holes 7 are communicated with the corresponding wiring holes, a connecting component 8 is arranged in the positions where the connecting grooves 6 are opposite to the connecting holes 7, driving components 9 for driving the connecting components 8 to move are arranged in the controller 2, metal 10 are arranged on the top and the bottom of the connecting components 8, one of the metal 10 is fixedly inserted into the corresponding wiring holes and is fixedly connected with the corresponding protection cover 4 on the inner side of the corresponding switch bodies 4, the two protection covers are fixedly connected with the two protection covers 4, and the two protection covers are electrically connected with the corresponding protection covers 4, and are fixedly connected with the two protection covers 11 on the two sides of the inner sides of the corresponding protection covers 4, and the protection covers are fixedly connected with the two protection covers 4;
The knob 3 controls two power supply rails 12 and a neutral position 13, the neutral position 13 is symmetrically distributed between the two power supply rails 12, the two power supply rails 12 are opposite to the two switch bodies 4 respectively, in an initial state, the knob 3 is opposite to the neutral position 13, at this time, two insulation sections 812 on the connection ring 81 in the two switch bodies 4 are opposite to the corresponding metal connection blocks 10 respectively, when the knob 3 is opposite to one of the power supply rails 12, the metal sections 811 of the connection ring 81 in the corresponding switch body 4 of the power supply rail 12 are electrically connected with the corresponding two metal connection blocks 10, and the insulation sections 812 on the connection ring 81 in the other switch body 4 are opposite to the corresponding two metal connection blocks 10;
when the electric power switch is used, incoming wires and outgoing wires of two power supplies are respectively connected to corresponding connecting columns on two switch bodies 4, and when a knob 3 is in a neutral position 13, the connecting assemblies 8 in the two switch bodies 4 can disconnect the electric connection between the two opposite metal connecting blocks 10, so that the electric leakage phenomenon is avoided when the electric power switch is not used;
when the power supply gear 12 is switched through the knob 3, the knob 3 is twisted towards the power supply gear 12 direction corresponding to the power supply, and along with the twisting of the knob 3, the connecting assembly 8 in the corresponding switch body 4 can rotate under the drive of the driving assembly 9, so that the two opposite metal connecting blocks 10 can be electrically connected through the connecting assembly 8 gradually, and in the process, the connecting assembly 8 in the other switch body 4 can be kept static, so that the incoming line and outgoing line of the power supply which is not switched can be disconnected with the switch body 4, the electric leakage phenomenon caused by the environmental humidity can be avoided, and the underground electricity safety of the electric explosion-proof rubber-tyred vehicle after the power supply is switched is greatly increased.
As shown in fig. 2 to 8, the connection assembly 8 includes a connection ring 81, the connection ring 81 is divided into two identical metal sections 811 and two insulation sections 812, the outer sides of the connection ring 81 and the corresponding two metal connection blocks 10 are kept in contact, the two metal sections 811 and the two insulation sections 812 are alternately distributed, a metal rod 82 is fixedly connected between opposite sides of the two metal sections 811, an insulated rotating shaft 83 vertically penetrates and is inserted between front and rear sides of the middle of the metal rod 82, the rear end of the rotating shaft 83 is vertically and rotatably connected with a groove wall at the rear side of the connection groove 6, the front end of the rotating shaft 83 is rotatably connected with a fixing block 84, the fixing block 84 is fixedly connected with a groove wall at one side of the connection groove 6 close to the connection hole 7, and a transmission gear 85 is fixedly sleeved at a position of the rotating shaft 83 close to the front end;
The driving assembly 9 comprises racks 91, teeth on the racks 91 are engaged with a plurality of transmission gears 85, a U-shaped plate 92 is fixedly connected between the front sides of the racks 91 in two connecting grooves 6, a limiting sliding groove 93 is formed in the front side of the switch body 4, a limiting sliding block 94 is fixedly connected to the position, opposite to the limiting sliding groove 93, of the U-shaped plate 92, a pull rod 95 is fixedly connected to one side, close to the controller 2, of the U-shaped plate 92, the pull rods 95 on the two U-shaped plates 92 are rotationally symmetrical with respect to a knob 3, a notch is formed in the position, opposite to the pull rod 95, of one side, close to the controller 2, of the protecting cover 11, a part, opposite to the pull rod 95, of the knob 3, of the knob 2 is fixedly sleeved with a notch gear 96, a circular gear groove 97 is formed in the position, opposite to the notch gear 96, the position, opposite to the free ends of the two pull rods 95, of the gear groove 97 are respectively, slots 98 are formed in the position, opposite to the free ends of the two notch gears 96, and the two notch gears 95 can be engaged with one of the notch teeth 96, and the teeth 95 can be engaged with the teeth on the other notch segment of the teeth 95 when the two notch teeth are uniformly distributed on the notch segment of the two notch teeth 95;
In the initial state, the knob 3 is opposite to the neutral 13, at this time, two insulation sections 812 on the connecting ring 81 in the two switch bodies 4 are opposite to the corresponding metal connecting blocks 10 respectively, and when the gear is switched, as the knob 3 is twisted, the teeth on one pull rod 95 are just meshed with the teeth on the gear-lack 96, and the teeth on the other pull rod 95 are opposite to the gear-lack 96, therefore, as the knob 3 is continuously twisted, the pull rod 95 meshed with the gear-lack 96 can pull the two racks 91 connected with the pull rod through the corresponding U-shaped plate 92 to synchronously move, as the racks 91 move, the plurality of transmission gears 85 meshed with the racks 91 can start to rotate under the driving of the racks 91, so that the two metal sections 811 on the connecting ring 81 can gradually rotate towards the corresponding metal connecting blocks 10, when the two metal sections 811 on the connecting ring 81 are connected with the two metal connecting blocks 10 together, the wire on the wiring terminal 5 can realize that the two metal sections 811 on the connecting ring 81 and the metal rod 82 can realize the mutual connection of the two metal connecting blocks 10, the two metal connecting blocks 10 can be firstly twisted, the two metal connecting blocks 10 can be continuously connected with the other metal connecting blocks 95, the two connecting blocks can be continuously rotated, the two metal connecting blocks can be continuously connected with the knob 12, the other connecting blocks 12 can be continuously rotated, the two metal connecting blocks can be continuously connected with the other connecting blocks 12 can be continuously in the power supply 12, the power supply 12 can be continuously rotated, the other connecting ring can be continuously connected with the other connecting ring 3 can be continuously, and the other connecting blocks can be continuously rotated, the power supply 12 can be continuously connected with the power supply 12 can be continuously in the opposite to the power supply 12, and the power can be continuously connected with the power, and the power supply can be continuously connected with the continuously and continuously in the different in the state, and the state, when the power supply can be continuously connected to be continuously in need to be continuously and required to be continuously connected to be electrically and rotated and connected to be electrically and connected to be connected and required to and connected and, thereby completing the switching operation of the other power supply stage 12;
And because the connecting component 8 exists, in the whole process of switching the power supply rail 12, besides realizing the switching operation of the power supply, when one power supply is used, the incoming line and the outgoing line on the other power supply can be cut off along with the rotation of the connecting ring 81 in the corresponding switch body 4 and the connection operation of the corresponding switch body 4, thereby avoiding the electric leakage phenomenon caused by the environmental humidity and greatly increasing the underground electricity safety of the electric explosion-proof rubber-tyred vehicle after switching the power supply.
As shown in fig. 7, the opposite side of the metal connecting block 10 to the connecting ring 81 is designed as a cambered surface, the cambered surface can be perfectly attached to the surface of the connecting ring 81, a groove is formed on the opposite side of the metal connecting block 10 to the connecting block, a movable block 14 of metal is inserted in the groove in a sliding manner, one end of the movable block 14 close to the connecting ring 81 is designed as a cambered surface, the circle center of the cambered surface of the movable block 14 coincides with the circle center of the cambered surface of the metal connecting block 10, one side of the movable block 14 far away from the connecting ring 81 is fixedly connected with a metal telescopic rod 15, one end of the telescopic rod 15 far away from the movable block 14 is fixedly connected with the groove wall on the corresponding side of the groove, a compression spring 16 is sleeved on the telescopic rod 15, and two ends of the compression spring 16 are respectively fixedly connected with the movable block 14 and the inner wall of the groove;
By arranging the movable blocks 14, when the connecting ring 81 is attached to the two opposite metal connecting blocks 10, the movable blocks 14 can be attached to the outer sides of the connecting ring 81 under the action of the compression springs 16, so that when the two metal sections 811 of the connecting ring 81 are respectively opposite to the two metal connecting blocks 10 in the process of rotating the connecting ring 81, the two movable blocks 14 can be attached to the metal sections 811 of the connecting ring 81 under the action of the corresponding compression springs 16, and stable electrical connection between the metal connecting blocks 10 and the connecting ring 81 is further ensured;
In addition, the movable block 14 can generate pressure on the connecting ring 81 under the pushing action of the compression spring 16, so that when the teeth of the pull rod 95 are not meshed with the teeth on the gear-missing wheel 96, the pressure generated by the movable block 14 on the connecting ring 81 can also ensure the stability of the static state of the connecting ring 81.
As shown in fig. 5, the balls 17 are uniformly mounted on the rear side of the limit slider 94, and the balls 17 can be attached to the inner wall of the limit chute 93;
through being provided with ball 17, when spacing slider 94 slides along spacing spout 93, the ball 17 can reduce the frictional force between spacing slider 94 and the spacing spout 93 to make rack 91 can be under the drive of U-shaped plate 92 the lighter drive gear 85 rotate.
As shown in fig. 4 to 6, a supporting bar 18 is fixedly connected to one side of the rack 91 away from the transmission gear 85, a bar groove 19 is formed on a groove wall of the side opposite to the connecting groove 6 and the supporting bar 18, and the supporting bar 18 is slidably mounted in the bar groove 19;
By being provided with the support bar 18, when the rack 91 drives the transmission gear 85 to rotate, the support bar 18 can slide along the bar slot 19 and provide a supporting force for the rack 91 from the side of the rack 91 away from the transmission gear 85, thereby ensuring that the rack 91 and the transmission gear 85 can be stably meshed together.
As shown in fig. 6, a plurality of storage grooves are uniformly formed on the outer side of the insulating section 812 of the connecting ring 81, friction strips 20 are fixedly connected in the storage grooves, and the friction strips 20 are flush with the outer side of the insulating section 812 of the connecting ring 81;
Through being provided with friction bar 20, at the rotatory in-process of go-between 81, friction bar 20 can polish the opposite one side of metal connecting block 10 and movable block 14 and go-between 81 to avoid metal connecting block 10 and movable block 14 to produce the oxidation because of long-time friction, guarantee that go-between 81 metal segment 811 and metal connecting block 10 and movable block 14 remain stable electric connection.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (6)
1. The utility model provides a double-power isolating switch with leakage protection in pit, includes mount pad (1), its characterized in that mount pad (1) front side installs controller (2), the front side of controller (2) rotates the grafting and has knob (3) that are used for switching power, the bilateral symmetry of controller (2) is provided with switch body (4), a plurality of wiring holes have all been seted up to the top and the bottom of switch body (4), wiring hole internally fixed mounting has terminal (5), two spread grooves (6) have been seted up to switch body (4) front side level, two spread grooves (6) respectively with a plurality of wiring hole place areas of switch body (4) top and bottom are relative, connecting hole (7) have been seted up in the position that spread groove (6) are relative with the wiring hole, and connecting hole (7) and corresponding wiring hole intercommunication, the position that is relative with connecting hole (7) in spread groove (6) is provided with coupling assembling (8), the inside of controller (2) is provided with drives coupling assembling (8) and removes terminal (9), the metal coupling assembling (10) and corresponding in junction assembling (10) are connected with corresponding terminal (10) in top and corresponding junction block (5), the other metal connecting block (10) is fixedly connected to the wall of the connecting groove (6) at the corresponding side and is electrically connected with a circuit element in the switch body (4), the front side of the switch body (4) is provided with a protective cover (11), and the two connecting grooves (6) are both positioned at the inner side of the protective cover (11);
The connecting assembly (8) comprises a connecting ring (81), the connecting ring (81) is divided into two identical metal sections (811) and two insulating sections (812), the outer sides of the connecting ring (81) are respectively attached to the corresponding two metal connecting blocks (10), the two metal sections (811) and the two insulating sections (812) are alternately distributed, a metal rod (82) is fixedly connected between one opposite sides of the two metal sections (811), an insulating rotating shaft (83) vertically penetrates through and is inserted between the front side and the rear side of the middle part of the metal rod (82), the rear end of the rotating shaft (83) is vertically connected with the groove wall of the rear side of the connecting groove (6) in a rotating mode, the front end of the rotating shaft (83) is rotationally connected with a fixed block (84), the fixed block (84) is fixedly connected with the groove wall of one side, close to the connecting hole (7), of the rotating shaft (83), and a transmission gear (85) is fixedly sleeved at the position, close to the front end, of the rotating shaft (83);
The driving assembly (9) comprises racks (91), teeth on the racks (91) are meshed with a plurality of transmission gears (85), two U-shaped plates (92) are fixedly connected between the front sides of the racks (91) in the connecting grooves (6), limiting sliding grooves (93) are formed in the front sides of the switch bodies (4), limiting sliding blocks (94) are fixedly connected to the positions, opposite to the limiting sliding grooves (93), of the U-shaped plates (92), the limiting sliding blocks (94) are slidably mounted in the limiting sliding grooves (93), one side, close to the controller (2), of each U-shaped plate (92) is fixedly connected with a pull rod (95), pull rods (95) on the two U-shaped plates (92) are rotationally symmetrical with respect to a knob (3), notches are formed in penetrating positions, opposite to the pull rods (95), of one side, close to the controller (2), of each protecting cover (11) are inserted into the corresponding notches, a part, located in the controller (2), of each knob (3) is fixedly sleeved with a notch gear (96), the position, opposite to the corresponding notch (97), of each gear (97) is formed in the corresponding groove (97), the two pull rods (95) are respectively inserted into the two slots (98) in a sliding manner, one section of teeth are uniformly distributed on one side, opposite to the gear lack (96), of the pull rods (95), and the teeth can be meshed with the gear lack (96);
The knob (3) controls two power supply gears (12) and a neutral position (13), the neutral position (13) is symmetrically distributed between the two power supply gears (12), the two power supply gears (12) are respectively opposite to the two switch bodies (4), in an initial state, the knob (3) is opposite to the neutral position (13), at the moment, two insulation sections (812) on a connecting ring (81) in the two switch bodies (4) are respectively opposite to corresponding metal connecting blocks (10), when the knob (3) is opposite to one of the power supply gears (12), a metal section (811) of the connecting ring (81) in the corresponding switch body (4) of the power supply gear (12) is electrically connected with the corresponding two metal connecting blocks (10), and an insulation section (812) on the connecting ring (81) in the other switch body (4) is opposite to the corresponding two metal connecting blocks (10);
The utility model discloses a metal connecting block, including metal connecting block (10), connecting ring (81), recess, compression spring (16) have been seted up to metal connecting block (10), metal connecting block (10) and connecting block are relative one side for the cambered surface design, and the one end that movable block (14) is close to connecting ring (81) is also cambered surface design, and the centre of a circle of movable block (14) cambered surface coincides with the centre of a circle of metal connecting block (10) cambered surface, one side fixedly connected with metal telescopic link (15) of connecting ring (81) are kept away from to movable block (14), one end and recess corresponding one side cell wall fixed connection of movable block (14) that telescopic link (15) kept away from, compression spring (16) have been cup jointed on telescopic link (15), the both ends and movable block (14) and recess inner wall fixed connection respectively.
2. The underground double-power-supply isolating switch with leakage protection according to claim 1, wherein the switch body (4) and the controller (2) are detachably arranged on the mounting seat (1) and are electrically connected together.
3. A dual power supply isolating switch with leakage protection in a well as defined in claim 1, wherein the tooth part and the tooth part of the gear lack (96) are distributed in half, and when the tooth part of the gear lack (96) is meshed with the tooth of one pull rod (95), the tooth lack part of the gear lack (96) can be opposite to the tooth of the other pull rod (95).
4. The underground double-power-supply isolating switch with leakage protection according to claim 1, wherein the balls (17) are uniformly arranged on the rear side of the limiting slide block (94), and the balls (17) can be attached to the inner wall of the limiting slide groove (93).
5. The underground double-power-supply isolating switch with leakage protection according to claim 1, wherein one side of the rack (91) far away from the transmission gear (85) is fixedly connected with a supporting bar (18), a slot wall on the opposite side of the connecting slot (6) and the supporting bar (18) is provided with a slot (19), and the supporting bar (18) is slidably arranged in the slot (19).
6. The underground double-power-supply isolating switch with leakage protection according to claim 1, wherein a plurality of storage grooves are uniformly formed in the outer side of the insulating section (812) of the connecting ring (81), friction strips (20) are fixedly connected in the storage grooves, and the friction strips (20) are flush with the outer side of the insulating section (812) of the connecting ring (81).
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| CN202411394255.0A CN118888365B (en) | 2024-10-08 | 2024-10-08 | A dual power supply isolating switch with leakage protection in underground mines |
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| CN202411394255.0A CN118888365B (en) | 2024-10-08 | 2024-10-08 | A dual power supply isolating switch with leakage protection in underground mines |
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| CN119482025B (en) * | 2024-12-16 | 2025-05-23 | 深圳市宝安任达电器实业有限公司 | A ring main unit with dual power supply fast switching |
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| CN109192596A (en) * | 2018-09-18 | 2019-01-11 | 常熟市谷雷特机械产品设计有限公司 | A kind of stable high voltage isolator |
| CN113593961A (en) * | 2021-05-05 | 2021-11-02 | 深圳市龙星辰电源有限公司 | Dual-power transfer switch for medical places |
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| US10176943B1 (en) * | 2017-10-30 | 2019-01-08 | Spx Transformer Solutions, Inc. | High-voltage switch for series/parallel applications and tap changer applications |
| CN213990267U (en) * | 2020-11-06 | 2021-08-17 | 天津牧云科技有限公司 | Energy-saving dual-power switch controller |
| CN117711850A (en) * | 2022-09-07 | 2024-03-15 | 上海正泰智能科技有限公司 | Remote control rotary isolation switch |
| CN116092862A (en) * | 2022-12-29 | 2023-05-09 | 科世达(上海)机电有限公司 | Movable knob switch and vehicle |
| WO2024153200A1 (en) * | 2023-01-19 | 2024-07-25 | 上海良信电器股份有限公司 | Isolation switch body, isolation switch, and power distribution system |
| CN220208768U (en) * | 2023-06-25 | 2023-12-19 | 沈阳精锐科技有限公司 | Protective cover of emergency brake separating device |
| CN117174508B (en) * | 2023-11-02 | 2024-01-23 | 布勒德电气江阴有限公司 | Universal change-over switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109192596A (en) * | 2018-09-18 | 2019-01-11 | 常熟市谷雷特机械产品设计有限公司 | A kind of stable high voltage isolator |
| CN113593961A (en) * | 2021-05-05 | 2021-11-02 | 深圳市龙星辰电源有限公司 | Dual-power transfer switch for medical places |
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