CN212934514U - Quick plug-in type air circuit breaker - Google Patents
Quick plug-in type air circuit breaker Download PDFInfo
- Publication number
- CN212934514U CN212934514U CN202021245999.3U CN202021245999U CN212934514U CN 212934514 U CN212934514 U CN 212934514U CN 202021245999 U CN202021245999 U CN 202021245999U CN 212934514 U CN212934514 U CN 212934514U
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- Prior art keywords
- card line
- circuit breaker
- piece
- line piece
- electric wire
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- 238000003825 pressing Methods 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 abstract description 13
- 230000006378 damage Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model relates to an air switch especially relates to a quick plug-in type air circuit breaker. Quick plug-in type air circuit breaker, including the circuit breaker body, be provided with the switch driving lever on the circuit breaker body, be used for the circuit socket of external electric wire and be used for with the electrically conductive sheetmetal of external electric wire, the circuit breaker body includes casing and lower casing, the internal portion of inferior valve one side integrated into one piece near circuit socket have a location chamber, location intracavity sliding connection has a card line piece, runs through on the card line piece and is provided with the card line hole, the one end of sheetmetal is located the card line hole, the one end of card line piece is provided with the press cap that is used for pressing down the card line piece, the card line piece is kept away from and is provided with reset spring between the lateral wall in press cap. The utility model discloses have can realize electric wire quick assembly disassembly, be convenient for maintenance and maintenance, need not the outage operation when maintenance and maintenance, improve maintenance efficiency, avoid causing beneficial effect such as destruction to the equipment in the electronic box.
Description
Technical Field
The utility model relates to an air switch especially relates to a quick plug-in type air circuit breaker.
Background
The existing air circuit breaker is a very important electric appliance in a low-voltage distribution network and an electric power dragging system. The air circuit breaker is connected with an external wire through a line socket and is electrically connected with a circuit inside the air circuit breaker through a conductive metal sheet, and when the current in the circuit exceeds the rated current, the switch deflector rod automatically trips to cut off the circuit. When external connection of electric wires, need open upper casing and lower casing, pass through the bolt wire-wound with the metal core in the electric wire and fix on the sheetmetal, then with upper casing and lower casing butt joint, realize the connection of electric wires. When the electric wire needs to be replaced, the upper shell and the lower shell are required to be opened, so that the maintenance operation is not convenient, the main power supply is required to be closed, and the electric shock of an operator caused by the fact that the internal circuit of the air circuit breaker is connected with electricity is avoided.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at the above problem, provide one kind can realize electric wire quick assembly disassembly, be convenient for maintenance and maintenance, need not the outage operation when maintenance and maintenance, improve maintenance efficiency, avoid causing the quick plug-in type air circuit breaker of destruction to the equipment in the electronic box.
The purpose of the utility model is mainly realized by the following scheme: the utility model provides a quick plug-in type air circuit breaker, includes the circuit breaker body, is provided with the switch driving lever on the circuit breaker body, is used for the circuit socket of external electric wire and is used for with the electrically conductive sheetmetal of external electric wire, the circuit breaker body includes casing and lower casing, the internal portion of inferior valve one side integrated into one piece near circuit socket have a location chamber, location intracavity sliding connection has the card line piece, the slip direction of card line piece is perpendicular with circuit socket's axis direction, it is provided with the card line hole to run through on the card line piece, the axis direction of card line hole is parallel with circuit socket's axis direction, the one end of sheetmetal is located the card line hole, the one end of card line piece is provided with the press cap that is used for pressing the card line piece, the card line piece is kept away from and is provided with. Go up casing and casing down and adopt working of plastics injection moulding usually, at casing forming process down, there is the location chamber at the position integrated into one piece that is close to the circuit socket, at location intracavity installation card line piece, the location chamber can be spacing to the both sides of card line piece, can supply the card line piece to slide at the location intracavity simultaneously, the slip direction of card line piece is perpendicular with the axis of circuit socket. During the assembly, earlier at location intracavity installation reset spring, installation card line piece on reset spring makes the press cap free end on the card line piece wear out the casing outside down, and at this moment, the sheetmetal wears to locate the card line downthehole of card line piece, and reset spring promotes card line piece orientation and moves according to the direction of press cap, makes the sheetmetal press close to the inside one end that is close to reset spring of card line hole, will go up casing and lower casing butt joint again and assemble. When installing external electric wire, penetrate this internally with external electric wire by the circuit socket circuit breaker, exert pressure to pressing the cap, make the joint piece remove and extrude reset spring towards reset spring direction, the joint piece is followed in the card line hole and is moved towards reset spring's direction, makes the card line hole be close to the increase of distance between reset spring's a lateral wall and the sheetmetal, continues to insert the electric wire between card line hole and the sheetmetal. Loosen and press the cap, reset spring resets and promotes the direction removal that the joint piece was kept away from reset spring towards, and the card line hole is close to one side and the sheetmetal distance reduction of reset spring and cooperates the sheetmetal to compress tightly the electric wire between the two, realizes the joint to the electric wire. In a similar way, when the electric wire is dismantled to needs and the maintenance is carried out, exert pressure and extrusion reset spring according to the pressure cap, make the card line hole be close to reset spring's one side and sheetmetal distance increase, the pressure that the electric wire received reduces, alright take out the electric wire. Casing integrated into one piece location chamber under whole air circuit breaker, install mobilizable card line piece at the location intracavity, utilize reset spring's elasticity to exert external force to card line piece, the cooperation that utilizes card line hole and sheetmetal compresses tightly the electric wire, the dismouting of the electric wire of being convenient for, press the cap moreover, go up casing and lower casing and all adopt the insulating material preparation, at electric wire dismouting in-process, need not to cut off the power supply to air circuit breaker, alright with the quick assembly disassembly who realizes the electric wire, air circuit breaker also need not to dismantle, avoid causing the risk of unexpected damage to other equipment in the electronic box.
Preferably, the pressing cap is connected with the wire clamping block through a connecting column, one end of the connecting column is in threaded connection with the wire clamping block, and the other end of the connecting column is in threaded connection with the pressing cap. Be connected with the spliced pole between card line piece and the pressure cap, the one end threaded connection of spliced pole is on card line piece, and the other end threaded connection of spliced pole is convenient for production and assembly on pressing the cap.
Preferably, the lower shell is provided with a guide hole, the pressing cap is positioned in the guide hole and is in sliding connection with the guide hole, and one end of the pressing cap, which is close to the wire clamping block, extends radially to form a limiting boss with a diameter larger than that of the guide hole. The shaping is pour to the shaping in casing forming process down and has the guide hole, wears to establish in the guide hole and can slide along the guide hole according to the press cap, and the one end integrated into one piece that the press cap is close to card line piece has the spacing boss of radial extension, and inside spacing boss part was located casing down, the diameter that utilizes spacing boss diameter to be greater than the guide hole can realize spacing according to the press cap, avoids breaking away from in the casing down according to the press cap.
Preferably, the metal sheet is an arc surface. The sheetmetal is the cambered surface and can cooperate the card line hole to compress tightly the electric wire, and the increase sheetmetal improves electrically conductive stability and compresses tightly the firmness with the area of contact in card line hole.
Preferably, the metal sheet is close to reset spring's a side and the card line hole and keep away from one side internal surface of pressing the cap and all be provided with the barb, barb on the metal sheet and the card line hole all incline towards opposite direction and intermeshing. When the sheetmetal production, a side processing that is close to reset spring at the sheetmetal has the barb, and is the same, corresponds one side at the card line hole and also sets up the barb, and barb on the sheetmetal and the barb in the card line hole all incline and intermeshing towards opposite direction in addition, receive when the electric wire and compress tightly the back, and the barb can penetrate the insulating cover of electric wire in, plays the effect that prevents external force and pull out to the electric wire.
Preferably, the upper shell and the lower shell are connected through bolts.
Preferably, the side wall of the positioning cavity and the side wall of the wire clamping block are coaxially provided with positioning columns, and the end part of the return spring is sleeved on the positioning columns. In the forming process of the positioning cavity and the wire clamping block, positioning columns which correspond to each other in the axial direction are formed respectively, one end of a reset spring is sleeved on the positioning column on the positioning cavity during assembly, the other end of the reset spring is sleeved on the positioning column on the wire clamping block, so that the two ends of the reset spring are positioned in the axial direction of the corresponding positioning columns, and the deviation of the axis of the reset spring is avoided.
Therefore, the utility model discloses a quick plug-in type air circuit breaker possesses following advantage: casing integrated into one piece location chamber under whole air circuit breaker, install mobilizable card line piece at the location intracavity, utilize reset spring's elasticity to exert external force to card line piece, the cooperation that utilizes card line hole and sheetmetal compresses tightly the electric wire, the dismouting of the electric wire of being convenient for, press the cap moreover, go up casing and lower casing and all adopt the insulating material preparation, at electric wire dismouting in-process, need not to cut off the power supply to air circuit breaker, alright with the quick assembly disassembly who realizes the electric wire, air circuit breaker also need not to dismantle, avoid causing the risk of unexpected damage to other equipment in the electronic box.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a partial enlarged view of the line socket of the present invention;
fig. 3 is an enlarged partial cross-sectional view of the line inlet in the state of wire connection in embodiment 1;
fig. 4 is an enlarged partial sectional view of the line inlet in embodiment 2.
Illustration of the drawings: 1-upper shell, 2-lower shell, 3-switch deflector rod, 4-line socket, 5-wire, 6-positioning cavity, 7-wire clamping block, 8-wire clamping hole, 9-reset spring, 10-positioning column, 11-connecting column, 12-pressing cap, 13-metal sheet, 14-limiting boss and 15-barb.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example 1: as shown in fig. 1, 2 and 3, the quick plug-in type air circuit breaker comprises a breaker body, wherein a switch driving lever 3, a line socket 4 for an external electric wire 5 and a metal sheet 13 for conducting with the external electric wire are arranged on the breaker body, the breaker body comprises an upper shell 1 and a lower shell 2, and the upper shell and the lower shell are connected through bolts. One side integrated into one piece that inferior valve internal portion is close to circuit socket has location chamber 6, location intracavity sliding connection has card line piece 7, the slip direction of card line piece is perpendicular with the axis direction of circuit socket, it is provided with card line hole 8 to run through on the card line piece, the axis direction in card line hole is parallel with the axis direction of circuit socket, the one end of sheetmetal is located card line hole, the one end of card line piece is provided with the pressure cap 12 that is used for pressing down the card line piece, the card line piece is kept away from and is provided with reset spring 9 between the lateral wall in one end of pressing the pressure cap and location chamber. The pressing cap is connected with the wire clamping block through a connecting column 11, one end of the connecting column is in threaded connection with the wire clamping block, and the other end of the connecting column is in threaded connection with the pressing cap. The lower shell is provided with a guide hole, the pressing cap is positioned in the guide hole and is in sliding connection with the guide hole, and one end of the pressing cap, which is close to the wire clamping block, radially extends to form a limiting boss 14 with a diameter larger than that of the guide hole. The metal sheet is in a cambered surface. The side wall of the positioning cavity and the side wall of the wire clamping block are coaxially provided with positioning columns 10, and the end parts of the return springs are sleeved on the positioning columns.
Go up casing and casing down and adopt working of plastics injection moulding usually, at casing forming process down, there is the location chamber at the position integrated into one piece that is close to the circuit socket, at location intracavity installation card line piece, the location chamber can be spacing to the both sides of card line piece, can supply the card line piece to slide at the location intracavity simultaneously, the slip direction of card line piece is perpendicular with the axis of circuit socket. During the assembly, earlier at location intracavity installation reset spring, installation card line piece on reset spring makes the press cap free end on the card line piece wear out the casing outside down, and at this moment, the sheetmetal wears to locate the card line downthehole of card line piece, and reset spring promotes card line piece orientation and moves according to the direction of press cap, makes the sheetmetal press close to the inside one end that is close to reset spring of card line hole, will go up casing and lower casing butt joint again and assemble. When installing external electric wire, penetrate this internally with external electric wire by the circuit socket circuit breaker, exert pressure to pressing the cap, make the joint piece remove and extrude reset spring towards reset spring direction, the joint piece is followed in the card line hole and is moved towards reset spring's direction, makes the card line hole be close to the increase of distance between reset spring's a lateral wall and the sheetmetal, continues to insert the electric wire between card line hole and the sheetmetal. Loosen and press the cap, reset spring resets and promotes the direction removal that the joint piece was kept away from reset spring towards, and the card line hole is close to one side and the sheetmetal distance reduction of reset spring and cooperates the sheetmetal to compress tightly the electric wire between the two, realizes the joint to the electric wire. In a similar way, when the electric wire is dismantled to needs and the maintenance is carried out, exert pressure and extrusion reset spring according to the pressure cap, make the card line hole be close to reset spring's one side and sheetmetal distance increase, the pressure that the electric wire received reduces, alright take out the electric wire. Casing integrated into one piece location chamber under whole air circuit breaker, install mobilizable card line piece at the location intracavity, utilize reset spring's elasticity to exert external force to card line piece, the cooperation that utilizes card line hole and sheetmetal compresses tightly the electric wire, the dismouting of the electric wire of being convenient for, press the cap moreover, go up casing and lower casing and all adopt the insulating material preparation, at electric wire dismouting in-process, need not to cut off the power supply to air circuit breaker, alright with the quick assembly disassembly who realizes the electric wire, air circuit breaker also need not to dismantle, avoid causing the risk of unexpected damage to other equipment in the electronic box. Be connected with the spliced pole between card line piece and the pressure cap, the one end threaded connection of spliced pole is on card line piece, and the other end threaded connection of spliced pole is convenient for production and assembly on pressing the cap. The shaping is pour to the shaping in casing forming process down and has the guide hole, wears to establish in the guide hole and can slide along the guide hole according to the press cap, and the one end integrated into one piece that the press cap is close to card line piece has the spacing boss of radial extension, and inside spacing boss part was located casing down, the diameter that utilizes spacing boss diameter to be greater than the guide hole can realize spacing according to the press cap, avoids breaking away from in the casing down according to the press cap. The sheetmetal is the cambered surface and can cooperate the card line hole to compress tightly the electric wire, and the increase sheetmetal improves electrically conductive stability and compresses tightly the firmness with the area of contact in card line hole. In the forming process of the positioning cavity and the wire clamping block, positioning columns which correspond to each other in the axial direction are formed respectively, one end of a reset spring is sleeved on the positioning column on the positioning cavity during assembly, the other end of the reset spring is sleeved on the positioning column on the wire clamping block, so that the two ends of the reset spring are positioned in the axial direction of the corresponding positioning columns, and the deviation of the axis of the reset spring is avoided.
Example 2: this embodiment has substantially the same structure as embodiment 1, except that, as shown in fig. 4, barbs 15 are provided on both a side surface of the metal piece close to the return spring and an inner surface of a side of the card wire hole away from the pressing cap, and the barbs on the metal piece and the barbs on the card wire hole are inclined in opposite directions and engaged with each other. When the sheetmetal production, a side processing that is close to reset spring at the sheetmetal has the barb, and is the same, corresponds one side at the card line hole and also sets up the barb, and barb on the sheetmetal and the barb in the card line hole all incline and intermeshing towards opposite direction in addition, receive when the electric wire and compress tightly the back, and the barb can penetrate the insulating cover of electric wire in, plays the effect that prevents external force and pull out to the electric wire.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (7)
1. The utility model provides a quick plug-in type air circuit breaker, includes the circuit breaker body, is provided with the switch driving lever on the circuit breaker body, is used for the circuit socket of external electric wire and is used for with the electrically conductive sheetmetal of external electric wire, the circuit breaker body includes casing and lower casing, a serial communication port, the internal portion of inferior valve one side integrated into one piece near circuit socket have a location chamber, location intracavity sliding connection has the card line piece, the slip direction of card line piece is perpendicular with circuit socket's axis direction, it is provided with the card line hole to run through on the card line piece, the axis direction of card line hole is parallel with circuit socket's axis direction, the one end of sheetmetal is located the card line hole, the one end of card line piece is provided with the cap of pressing that is used for pressing the card line piece, the card line piece is kept away from and is.
2. The quick plug-in type air circuit breaker according to claim 1, wherein the push cap is connected to the wire-clamping block through a connection post, one end of the connection post is threadedly connected to the wire-clamping block, and the other end is threadedly connected to the push cap.
3. The quick plug-in type air circuit breaker according to claim 2, wherein the lower case is provided with a guide hole, the pressing cap is located in the guide hole and slidably connected with the guide hole, and one end of the pressing cap adjacent to the wire clamping block extends radially to be provided with a limit boss having a diameter larger than that of the guide hole.
4. A quick plug-in air circuit breaker according to claim 1, 2 or 3, characterized in that said metal sheet is cambered.
5. A quick plug-in type air circuit breaker according to claim 1, 2 or 3, wherein the metal plate has barbs on one side close to the return spring and on the inner surface of the card wire hole on the side far from the pressing cap, and the barbs on the metal plate and the barbs on the card wire hole are inclined toward opposite directions and engaged with each other.
6. A quick plug-in type air circuit breaker according to claim 1, 2 or 3, wherein the upper case and the lower case are bolted.
7. The quick plug-in type air circuit breaker according to claim 1, 2 or 3, wherein the side wall of the positioning cavity and the side wall of the wire clamping block are coaxially provided with positioning columns, and the end part of the return spring is sleeved on the positioning columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021245999.3U CN212934514U (en) | 2020-06-28 | 2020-06-28 | Quick plug-in type air circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021245999.3U CN212934514U (en) | 2020-06-28 | 2020-06-28 | Quick plug-in type air circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212934514U true CN212934514U (en) | 2021-04-09 |
Family
ID=75327202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021245999.3U Expired - Fee Related CN212934514U (en) | 2020-06-28 | 2020-06-28 | Quick plug-in type air circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212934514U (en) |
-
2020
- 2020-06-28 CN CN202021245999.3U patent/CN212934514U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210409 |