CN216354012U - Plastic casing type circuit breaker - Google Patents

Abstract

The utility model discloses a plastic shell type circuit breaker, which relates to the field of circuit breakers and comprises a circuit breaker shell, wherein a plurality of connecting grooves are formed in the circuit breaker shell, two mounting blocks are fixedly mounted on the inner walls of the two sides of the circuit breaker shell, mounting grooves are formed in the four mounting blocks, supporting blocks are fixedly mounted in the two mounting grooves at the same height, the connection stability between the supporting blocks and the mounting blocks is ensured, the same supporting base plate is fixedly mounted on the two supporting blocks, and a plurality of telescopic sliding holes are formed in the supporting base plate. According to the utility model, through the arrangement of the pressing block and other structures, when the circuit breaker is connected with an electric wire, only the wire end needs to be inserted into the connecting groove, and then the supporting bottom plate is pulled to drive the pressing block to slide in the connecting groove and press the wire end, so that the stable connection between the wire end and the circuit breaker is ensured, the wire end can be conveniently detached, and the condition that the circuit breaker is damaged due to screw corrosion is avoided.

Description

Plastic casing type circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a plastic shell type circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time.

Among the prior art, the both ends of circuit breaker all need connect the electric wire, but the connection of electric wire generally uses the screw fixation, and the circuit breaker generally exposes the setting, and the screw rusts after long-time use, just leads to the electric wire to break easily, causes the circuit breaker to damage, causes certain loss, consequently needs a plastic casing formula circuit breaker to satisfy people's demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a plastic shell type circuit breaker, which solves the problem that the circuit breaker provided by the background technology is generally exposed, and the screw is rusted after long-time use, so that the electric wire is easily broken, and the circuit breaker is damaged.

In order to achieve the purpose, the utility model provides the following technical scheme: a plastic shell type circuit breaker comprises a circuit breaker shell, wherein a plurality of connecting grooves are formed in the circuit breaker shell, two mounting blocks are fixedly mounted on the inner walls of two sides of the circuit breaker shell, mounting grooves are formed in the four mounting blocks, supporting blocks are fixedly mounted in the two mounting grooves at the same height, the connection stability between the supporting blocks and the mounting blocks is guaranteed, the same supporting bottom plate is fixedly mounted on the two supporting blocks, a plurality of telescopic sliding holes are formed in the supporting bottom plate, the same U-shaped positioning rod is sleeved in the two adjacent telescopic sliding holes in a sliding mode and used for fixing an electric wire, a buffering transverse plate is fixedly mounted at the top of each U-shaped positioning rod, two telescopic sliding rods are symmetrically and fixedly mounted at the bottom of the buffering transverse plate and sleeved on the supporting bottom plate in a sliding mode, the wire ends of the electric wire are inserted into the connecting grooves by a user, insert the spread groove with the briquetting afterwards to pull supporting baseplate makes the supporting shoe insert the mounting groove in, insert first screw hole and second screw hole with the threaded rod afterwards, rotate the fixed block and make the threaded rod can block in first screw hole and the second screw hole, accomplish the installation stability of installation piece and supporting shoe, make supporting baseplate drive the briquetting groove insert in the spread groove, and then push down the end of a thread of electric wire, guaranteed the stability of being connected of electric wire and circuit breaker.

Preferably, a first threaded hole is formed in the supporting block, a second threaded hole is formed in the inner wall of the mounting groove, the first threaded hole is communicated with the second threaded hole, the threaded rod is inserted into the first threaded hole and the second threaded hole, and the fixing block is rotated to enable the threaded rod to be clamped into the first threaded hole and the second threaded hole.

Preferably, the same threaded rod is installed in the first threaded hole and the second threaded hole, the fixed block is fixedly installed on the threaded rod, and the connection stability between the installation block and the supporting block is guaranteed through the interaction of the threaded rod and the first threaded hole and the second threaded hole.

Preferably, the supporting bottom plate is provided with a buffering slide hole, the telescopic slide rod is sleeved in the buffering slide hole in a sliding manner, and the buffering slide hole ensures the sliding stability of the telescopic slide rod.

Preferably, the telescopic slide rod is fixedly sleeved with a limiting ring, the limiting ring is in contact with the supporting bottom plate, and the limiting ring is used for preventing the telescopic slide rod from falling off from the buffer slide hole, so that the installation stability of the telescopic slide rod is ensured.

Preferably, the telescopic slide rod is sleeved with a supporting spring in a sliding manner, the supporting spring is used for supporting the buffering transverse plate to enable the buffering transverse plate to reset, one end of the supporting spring is in contact with the buffering transverse plate, and the other end of the supporting spring is in contact with the supporting bottom plate.

Preferably, fixed mounting has a plurality of briquetting on the supporting baseplate, and briquetting slidable mounting is in the spread groove, and the briquetting is used for the extrusion electric wire to make the connection that the electric wire end of a thread can be stable on the circuit breaker.

The utility model has the beneficial effects that:

according to the utility model, through the arrangement of the pressing block and other structures, when the breaker is connected with an electric wire, only the wire end needs to be inserted into the connecting groove, and then the supporting bottom plate is pulled to drive the pressing block to slide in the connecting groove and press the wire end, so that the stable connection between the wire end and the breaker is ensured, the wire end can be conveniently detached, and the condition that the breaker is damaged due to screw corrosion is avoided.

According to the utility model, through the arrangement of the structures such as the U-shaped positioning rod, the circuit breaker can fix the electric wire through the U-shaped positioning rod after the electric wire is connected, the condition that the electric wire falls off due to shaking in the use of the circuit breaker is avoided, and the connection stability of the electric wire is ensured.

Drawings

Fig. 1 is a schematic general view of a plastic case type circuit breaker according to the present invention;

fig. 2 is a schematic view of a connection structure of a plastic case type circuit breaker according to the present invention;

fig. 3 is a schematic cross-sectional view of a plastic case type circuit breaker according to the present invention;

fig. 4 is a schematic structural diagram of a portion a in fig. 3 of a plastic case type circuit breaker according to the present invention.

In the figure: 1. a circuit breaker housing; 2. connecting grooves; 3. mounting blocks; 4. mounting grooves; 5. a support block; 6. a support base plate; 7. a telescopic slide hole; 8. a U-shaped positioning rod; 9. a fixed block; 10. a buffer slide hole; 11. a telescopic slide bar; 12. a buffering transverse plate; 13. a limiting ring; 14. a support spring; 15. briquetting; 16. a first threaded hole; 17. a second threaded hole; 18. a threaded rod.

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.

Referring to fig. 1-4, a plastic casing type circuit breaker, including a circuit breaker casing 1, the circuit breaker casing 1 is provided with a plurality of connecting grooves 2, two mounting blocks 3 are fixedly mounted on the inner walls of both sides of the circuit breaker casing 1, mounting grooves 4 are formed on four mounting blocks 3, supporting blocks 5 are fixedly mounted in two mounting grooves 4 at the same height, the connection stability between the supporting blocks 5 and the mounting blocks 3 is ensured, the same supporting bottom plate 6 is fixedly mounted on the two supporting blocks 5, a plurality of telescopic sliding holes 7 are formed on the supporting bottom plate 6, the same U-shaped positioning rod 8 is sleeved in the adjacent two telescopic sliding holes 7 in a sliding manner, the U-shaped positioning rod 8 is used for fixing electric wires, a buffer transverse plate 12 is fixedly mounted on the top of the U-shaped positioning rod 8, two telescopic sliding rods 11 are symmetrically and fixedly mounted on the bottom of the buffer transverse plate 12, and the two telescopic sliding rods 11 are sleeved on the supporting bottom plate 6 in a sliding manner, the user inserts the electric wire end into spread groove 2, insert briquetting 15 into spread groove 2 afterwards, and pull supporting baseplate 6 and make supporting shoe 5 insert in mounting groove 4, insert threaded rod 18 into first screw hole 16 and second screw hole 17 afterwards, it makes threaded rod 18 can block into in first screw hole 16 and the second screw hole 17 to rotate fixed block 9, accomplish the installation stability of installation piece 3 and supporting shoe 5, make supporting baseplate 6 drive briquetting 15 groove insert in spread groove 2, and then push down the end of a thread of electric wire, the connection stability of electric wire and circuit breaker has been guaranteed.

Referring to fig. 4, a first threaded hole 16 is formed in the supporting block 5, a second threaded hole 17 is formed in the inner wall of the mounting groove 4, the first threaded hole 16 is communicated with the second threaded hole 17, a threaded rod 18 is inserted into the first threaded hole 16 and the second threaded hole 17, and the threaded rod 18 can be clamped into the first threaded hole 16 and the second threaded hole 17 by rotating the fixing block 9.

Referring to fig. 4 in the utility model, the same threaded rod 18 is internally threaded in the first threaded hole 16 and the second threaded hole 17, the fixed block 9 is fixedly mounted on the threaded rod 18, and the connection stability between the mounting block 3 and the supporting block 5 is ensured through the interaction of the threaded rod 18 and the first threaded hole 16 and the second threaded hole 17.

Referring to fig. 2, a buffer slide hole 10 is formed in a support base plate 6, a telescopic slide rod 11 is sleeved in the buffer slide hole 10 in a sliding mode, and the buffer slide hole 10 ensures the sliding stability of the telescopic slide rod 11.

Referring to fig. 2 in the utility model, a limit ring 13 is fixedly sleeved on the telescopic slide rod 11, the limit ring 13 is in contact with the support bottom plate 6, and the limit ring 13 is used for preventing the telescopic slide rod 11 from falling off from the buffer slide hole 10, so that the installation stability of the telescopic slide rod 11 is ensured.

Referring to fig. 2-3 in the utility model, a support spring 14 is slidably sleeved on the telescopic slide rod 11, the support spring 14 is used for supporting the buffering transverse plate 12 to be reset, one end of the support spring 14 is in contact with the buffering transverse plate 12, and the other end of the support spring 14 is in contact with the support bottom plate 6.

Referring to fig. 3, a plurality of pressing blocks 15 are fixedly installed on the supporting bottom plate 6, the pressing blocks 15 are slidably installed in the connecting grooves 2, and the pressing blocks 15 are used for extruding the electric wire so that the wire end of the electric wire can be stably connected to the circuit breaker.

The working principle of the utility model is as follows:

the user inserts the wire end of the electric wire into the connecting groove 2, then inserts the pressing block 15 into the connecting groove 2, pulls the supporting bottom plate 6 to insert the supporting block 5 into the mounting groove 4, then inserts the threaded rod 18 into the first threaded hole 16 and the second threaded hole 17, rotates the fixing block 9 to enable the threaded rod 18 to be clamped into the first threaded hole 16 and the second threaded hole 17, completes the mounting stability of the mounting block 3 and the supporting block 5, enables the supporting bottom plate 6 to drive the pressing block 15 to be inserted into the connecting groove 2, further presses the wire end of the electric wire, ensures the connection stability of the electric wire and the breaker, can press the buffering transverse plate 12 in the process of connecting the electric wire, enables the buffering transverse plate 12 to downwards extrude the U-shaped positioning rod 8 to downwards slide in the telescopic sliding hole 7, inserts the electric wire into the U-shaped positioning rod 8, and then drives the buffering transverse plate 12 to upwards slide under the action of the supporting spring 14, and then make U type locating lever 8 fix the electric wire, avoided the electric wire to take place to rock after accomplishing to connect, wherein, flexible slide bar 11 has guaranteed the activity stability of buffering diaphragm 12, and spacing ring 13 prevents that flexible slide bar 11 from droing in buffering slide hole 10, has guaranteed the installation stability of flexible slide bar 11.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (7)

1. The utility model provides a plastic casing formula circuit breaker, includes circuit breaker shell (1), a plurality of spread groove (2), its characterized in that have been seted up on circuit breaker shell (1): equal fixed mounting has two installation pieces (3) on the both sides inner wall of circuit breaker shell (1), mounting groove (4) have all been seted up on four installation pieces (3), equal fixed mounting has supporting shoe (5) in two mounting grooves (4) that are located same height, fixed mounting has same supporting baseplate (6) on two supporting shoes (5), a plurality of flexible slide opening (7) have been seted up on supporting baseplate (6), slide in two adjacent flexible slide opening (7) and cup jointed same U type locating lever (8), the top fixed mounting of U type locating lever (8) has buffering diaphragm (12), the bottom symmetry fixed mounting of buffering diaphragm (12) has two flexible slide bar (11), two flexible slide bar (11) all slide cup joint on supporting baseplate (6).

2. The plastic case type circuit breaker according to claim 1, wherein: a first threaded hole (16) is formed in the supporting block (5), a second threaded hole (17) is formed in the inner wall of the mounting groove (4), and the first threaded hole (16) is communicated with the second threaded hole (17).

3. The plastic case type circuit breaker according to claim 2, wherein: the first threaded hole (16) and the second threaded hole (17) are internally provided with the same threaded rod (18), and the threaded rod (18) is fixedly provided with a fixing block (9).

4. The plastic case type circuit breaker according to claim 1, wherein: the supporting bottom plate (6) is provided with a buffering slide hole (10), and the telescopic slide rod (11) is sleeved in the buffering slide hole (10) in a sliding manner.

5. The plastic case type circuit breaker according to claim 1, wherein: the telescopic sliding rod (11) is fixedly sleeved with a limiting ring (13), and the limiting ring (13) is in contact with the supporting bottom plate (6).

6. The plastic case type circuit breaker according to claim 1, wherein: the telescopic sliding rod (11) is sleeved with a supporting spring (14) in a sliding mode, one end of the supporting spring (14) is in contact with the buffering transverse plate (12), and the other end of the supporting spring (14) is in contact with the supporting bottom plate (6).

7. The plastic case type circuit breaker according to claim 1, wherein: a plurality of pressing blocks (15) are fixedly mounted on the supporting bottom plate (6), and the pressing blocks (15) are slidably mounted in the connecting grooves (2).

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