CN219553538U - Small-sized circuit breaker - Google Patents

Abstract

The utility model discloses a small-sized circuit breaker, which comprises a circuit breaker shell, wherein clamping mechanisms are arranged on the outer walls of two sides of the circuit breaker shell, each clamping mechanism comprises a half-rotation groove and a half-rotation disc, a half-annular clamping groove is arranged on each half-rotation groove, each half-rotation disc is rotatably arranged on each half-rotation groove, each half-rotation disc is provided with a half-annular clamping strip, each half-annular clamping strip is in sliding fit with each half-annular clamping groove, a half-cylindrical rod groove communicated with the front surface of the circuit breaker shell is arranged at the front end of each half-rotation groove, a half transmission rod is arranged in each half-cylindrical rod groove, and the inner end of each half transmission rod is fixedly connected with each half-rotation disc. When a plurality of miniature circuit breakers are combined side by side, the two spliced semi-transmission rods are rotated, so that one circuit breaker can be clamped with the semi-annular clamping groove of the other circuit breaker through the semi-annular clamping strip arranged on the semi-rotation disc, the assembly of the two circuit breakers and the semi-annular clamping groove is realized, the installation efficiency is higher, and the single circuit breaker is convenient to detach and replace for maintenance when one circuit breaker is damaged.

Description

Small-sized circuit breaker

Technical Field

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

Background

The use of the circuit breaker can effectively improve the safety of electrical equipment. The existing small intelligent circuit breaker generally adopts a clamping rail mounting mode, namely the small intelligent circuit breaker is clamped on the clamping rail, and when the small intelligent circuit breaker breaks down and needs to be detached for maintenance, a worker needs to detach the small intelligent circuit breaker from the clamping rail and then mount the small intelligent circuit breaker. When the existing small intelligent circuit breaker is used, the shell structure of the existing small intelligent circuit breaker is mainly connected through screw, mortise-tenon connection and other modes, and the mode can ensure the connection strength and stability of the shell, for example, the shell structure of the CN202123207069.6 small intelligent circuit breaker; the drawbacks of the above prior art are: the intelligent circuit breaker combination is inconvenient to detach and replace singly when one damage occurs in the parallel use process, and only one group of intelligent circuit breaker combination can be replaced integrally. Therefore, the improvement is made by us, and a miniature circuit breaker is provided, which is convenient for combined use and single disassembly and maintenance.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a small-sized circuit breaker which is convenient to assemble and disassemble between two adjacent circuit breakers.

The utility model solves the technical problems by adopting the technical scheme that: the utility model provides a miniature circuit breaker, includes the circuit breaker casing, and the top and the bottom of circuit breaker casing all are equipped with binding post, and the front of circuit breaker casing is equipped with the switch handle that is used for the divide-shut brake operation, all be equipped with joint mechanism on the both sides outer wall of circuit breaker casing, joint mechanism includes half gyration groove and half rolling disc, is equipped with half annular draw-in groove on the half gyration groove, half rolling disc is installed in the rotation of half gyration groove, is equipped with half annular draw-in bar on the half rolling disc, half annular draw-in bar and half annular draw-in groove sliding fit, half gyration groove's front end is equipped with the positive semicylindrical pole groove of intercommunication circuit breaker casing, and half transfer line is laid to the semicylindrical pole inslot, and half transfer line's inner fixed connection half rolling disc is equipped with half rolling handle.

Further perfecting, the upper end and the lower end of the semi-annular clamping groove are respectively provided with a guide taper hole.

Further perfecting, a positioning magnet is fixedly arranged on the side surface of the semi-transmission rod.

The beneficial effects of the utility model are as follows: when a plurality of miniature circuit breakers of this kind are combined side by side, rotate two half transfer lines that piece together for one of them circuit breaker can carry out the joint through the semi-annular draw-in groove of semi-annular draw-in strip that sets up on the semi-rotating disk with another circuit breaker, realize the equipment of both, compare with traditional mounting means that cooperatees or mortise-tenon joint through screw and through-hole between two adjacent circuit breakers, installation effectiveness is higher, and convenient single dismantlement is changed and is maintained when one of them damages moreover.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is an enlarged schematic view of the structure of the clamping mechanism in fig. 1.

Fig. 3 is a perspective view of a half-turn disc and other components of the snap-in mechanism.

Reference numerals illustrate: 1. the circuit breaker casing, 2, binding post, 3, switch handle, 4, half gyration groove, 5, half rolling disc, 6, semi-annular draw-in groove, 7, semi-annular card strip, 8, semi-cylindrical pole groove, 9, half transfer line, 10, half rolling handle, 11, guide taper hole, 12, location magnet.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

referring to fig. 1-2: the small-sized circuit breaker comprises a circuit breaker shell 1, wherein wiring terminals 2 are arranged at the top and the bottom of the circuit breaker shell 1, a switch handle 3 used for opening and closing operations is arranged on the front face of the circuit breaker shell 1, clamping mechanisms are arranged on the outer walls of two sides of the circuit breaker shell 1, each clamping mechanism comprises a half rotary groove 4 and a half rotary disc 5, a half annular clamping groove 6 is arranged on each half rotary groove 4, the half rotary disc 5 is rotatably arranged in each half rotary groove 4, a half annular clamping strip 7 is arranged on each half rotary disc 5, the half annular clamping strips 7 are in sliding fit with the half annular clamping grooves 6, a semi-cylindrical rod groove 8 used for communicating the front face of the circuit breaker shell 1 is arranged at the front end of each half rotary groove 4, a half transmission rod 9 is arranged in each semi-cylindrical rod groove 8, the inner end of each half transmission rod 9 is fixedly connected with the corresponding half rotary disc 5, and a half rotary handle 10 is arranged at the outer end of each half transmission rod 9.

Working principle: when the two half-rotating handle 10 is used, the two half-rotating grooves 4, the two half-rotating discs 5, the two half-transmission rods 9, the two half-rotating handles 10 and the like are spliced together, then the two half-rotating handles 10 are pinched simultaneously to rotate 90 degrees to enable the two half-rotating handles to rotate from a vertical state to a horizontal state, in the rotating process, the two half-transmission rods 9 drive the two half-rotating discs 5 to rotate, one ends of the two half-annular clamping strips 7 are respectively and slidably clamped into the opposite-side half-annular clamping grooves 6, so that the two circuit breaker shells 1 are combined together to facilitate the combination of the two half-rotating discs and the use, and compared with the traditional installation mode of matching or mortise-tenon connection between the two adjacent circuit breakers through screws, the installation efficiency is higher, and in addition, the two half-rotating handles 10 are convenient to be singly detached for replacement and maintenance when damaged, and only the two half-rotating handles 10 are required to rotate 90 degrees to be rotated from the horizontal state to the vertical state, so that the two circuit breaker shells 1 are separated.

The upper end and the lower end of the semi-annular clamping groove 6 are respectively provided with a guide taper hole 11 with the outer size and the inner size, and the guide taper holes 11 can conveniently guide one end of the semi-annular clamping strip 7 to be respectively and slidably clamped into the semi-annular clamping groove 6 on the opposite side, so that a transition effect is achieved. A positioning magnet 12 is fixedly arranged on the side face of the semi-transmission rod 9, so that the two breaker shells 1 can be conveniently attracted and positioned through the magnet, and the two breaker shells can be conveniently and rapidly aligned.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims (3)

1. The utility model provides a miniature circuit breaker, includes circuit breaker casing (1), and the top and the bottom of circuit breaker casing (1) all are equipped with binding post (2), and the front of circuit breaker casing (1) is equipped with switch handle (3) that are used for the divide-shut brake operation, its characterized in that: all be equipped with joint mechanism on the both sides outer wall of circuit breaker casing (1), joint mechanism includes half gyration groove (4) and half rolling disc (5), is equipped with half annular draw-in groove (6) on half gyration groove (4), half rolling disc (5) are installed in half gyration groove (4) internal rotation, are equipped with half annular card strip (7) on half rolling disc (5), half annular card strip (7) and half annular draw-in groove (6) sliding fit, the front end of half gyration groove (4) is equipped with the positive semicylindrical pole groove (8) of intercommunication circuit breaker casing (1), lays half transfer line (9) in semicylindrical pole groove (8), the inner fixed connection half rolling disc (5) of half transfer line (9), and the outer end of half transfer line (9) is equipped with half rotation handle (10).

2. A miniature circuit breaker according to claim 1, characterized in that: the upper end and the lower end of the semi-annular clamping groove (6) are respectively provided with a guide taper hole (11).

3. A miniature circuit breaker according to claim 1, characterized in that: a positioning magnet (12) is fixedly arranged on the side surface of the semi-transmission rod (9).