CN213716824U

CN213716824U - Wiring screw for circuit breaker

Info

Publication number: CN213716824U
Application number: CN202120094317.1U
Authority: CN
Inventors: 屠林明
Original assignee: Yueqing Yehe Electric Co ltd
Current assignee: Yueqing Yehe Electric Co ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-07-16
Anticipated expiration: 2031-01-14

Abstract

The utility model relates to the technical field of electrical parts, and discloses a wiring screw for a circuit breaker, which comprises a screw, a nut is fixedly arranged at the top end of the screw, a connecting block is rotatably arranged at the top of an inner cavity of the screw, a connecting rod is rotatably arranged inside the screw, a spring is fixedly arranged at the bottom of the connecting block, and a clamping block is fixedly arranged at the bottom end of the connecting rod, the wiring screw for the circuit breaker compresses the spring by rotating the nut matching screw and the connecting rod, and then the clamping block is driven by the rebound force of the spring to fix the electric wire, thereby improving the fixing effect of the screw on the electric wire, avoiding the problem that the electric wire is damaged due to over-tightening of the electric wire pressed by the screw, effectively preventing the problem that the screw slips, pressing a double-size spring into the clamping block by the electric wire matching movable block, and then driving the movable block to slightly fix the, the staff of being convenient for installs the electric wire above the circuit breaker.

Description

Wiring screw for circuit breaker

Technical Field

The utility model relates to an electric parts technical field specifically is a wiring screw for circuit breaker.

Background

The circuit breaker is a switching device capable of closing, bearing and breaking a current under a normal circuit condition and closing, bearing and breaking a current under an abnormal circuit condition within a specified time, and can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply line, a motor and the like, automatically breaking a circuit when faults such as severe overload, short circuit, undervoltage and the like occur, and fixing the circuit breaker by using a wiring screw when the circuit breaker is connected with an electric wire.

When using, the existing wiring screw for the circuit breaker is poor in fixing effect of an electric wire, the electric wire is easily damaged due to the fact that the screw presses the electric wire too tightly, and the problem of wire sliding easily occurs in the process of screwing the screw tightly, so that the electric wire is inconvenient to install, and the installation efficiency of workers is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a wiring screw for circuit breaker possesses the fixed effect that can improve the electric wire, avoided the screw to press down the damage that the electric wire leads to the electric wire tension, smooth silk can not appear in the screw at the tight in-process of commentaries on classics, the staff of being convenient for installs advantages such as above the circuit breaker with the electric wire, it is not good to have solved the fixed effect of screw to the electric wire, the screw is pressed down the electric wire tension and is leaded to the electric wire to damage easily, and smooth silk appears in the tight in-process of commentaries on classics easily in the screw, the electric wire installation is inconvenient.

(II) technical scheme

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a wiring screw for circuit breaker, includes the screw, the top fixed mounting of screw has the nut, the top of screw inner chamber is rotated and is installed the connecting block, the inside of screw is rotated and is installed the connecting rod, the bottom fixed mounting of connecting block has a spring, the bottom fixed mounting of connecting rod has the fixture block.

Preferably, the bottom of the first spring is fixedly connected with the top of the connecting rod.

Preferably, the bottom end of the connecting rod penetrates through the screw and extends to the outside of the screw.

Preferably, the top of the inner cavity of the fixture block is fixedly provided with five springs.

Preferably, the inside slidable mounting of fixture block has the movable block, the top and the bottom fixed connection of No. two springs of movable block.

Preferably, the bottom of the movable block penetrates through the fixture block and extends to the outside of the fixture block.

(III) advantageous effects

Compared with the prior art, the utility model provides a wiring screw for circuit breaker possesses following beneficial effect: this wiring screw for circuit breaker accessible electric wire cooperation movable block presses two No. springs to fixture block inside, then drives the movable block through the bounce of No. two springs and slightly fixes the electric wire in the wire casing, compresses No. one spring through rotating nut cooperation screw and connecting rod after that, and the bounce cooperation connecting rod of rethread spring drives the fixture block and fixes the electric wire.

1. This wiring screw for circuit breaker compresses a spring through rotating nut cooperation screw and connecting rod, and the bounce-back cooperation connecting rod of rethread spring drives the fixture block and fixes the electric wire, has improved the fixed effect of screw to the electric wire, has avoided the screw to press down the problem that the electric wire leads to the electric wire to damage by the electric wire tension, has effectively prevented the problem that smooth silk appears in the screw.

2. This wiring screw for circuit breaker presses the double number spring to the fixture block inside through electric wire cooperation movable block, then drives the movable block through the bounce of No. two springs and slightly fixes the electric wire in the wire way, does not need staff's control on the one hand electric wire to rotate the screw on the other hand, and the staff of being convenient for installs the electric wire on the circuit breaker, has improved the efficiency that the staff installed.

Drawings

Fig. 1 is a perspective view of the external structure of the present invention.

Fig. 2 is a front view of the internal structure of the screw of the present invention.

Fig. 3 is a longitudinal sectional view of the internal structure of the clamping block of the present invention.

In the figure: 1. a screw; 2. a nut; 3. connecting blocks; 4. a connecting rod; 5. a first spring; 6. a clamping block; 7. a second spring; 8. a movable block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a wiring screw for a circuit breaker includes a screw 1, a nut 2 is fixedly mounted at the top end of the screw 1, a connecting block 3 is rotatably mounted at the top of an inner cavity of the screw 1, a connecting rod 4 is rotatably mounted inside the screw 1, a first spring 5 is fixedly mounted at the bottom of the connecting block 3, a clamping block 6 is fixedly mounted at the bottom end of the connecting rod 4, the bottom end of the first spring 5 is fixedly connected with the top end of the connecting rod 4, the bottom end of the connecting rod 4 penetrates through the screw 1 and extends to the outside of the screw 1, a second spring 7 is fixedly mounted at the top of the inner cavity of the clamping block 6, the number of the second springs 7 is five, a movable block 8 is slidably mounted inside the clamping block 6, the top end of the movable block 8 is fixedly connected with the bottom end of the second spring 7, and.

The working principle is as follows: at first during the staff inserts the circuit breaker wire casing with the electric wire, the electric wire is at the insertion in-process through the movable block 8 to the inside double spring 7 of pressing of fixture block 6, then drive the movable block 8 through the bounce of No. two springs 7 and slightly fix the electric wire in the wire casing, drive screw 1 through rotating nut 2 and move down after that, screw 1 drives connecting rod 4 and compresses a spring 5 and connecting block 3 to screw 1 inside moving down in-process, the bounce cooperation connecting rod 4 of rethread spring 5 drives fixture block 6 and fixes the electric wire.

In conclusion, the wiring screw for the circuit breaker can press the double-gauge spring 7 towards the inside of the clamping block 6 through the electric wire matching with the movable block 8, then the movable block 8 is driven by the rebound force of the second spring 7 to slightly fix the electric wire in the electric wire groove, then the first spring 5 is compressed through the rotating nut 2 matching with the screw 1 and the connecting rod 4, and then the clamping block 6 is driven by the rebound force of the first spring 5 matching with the connecting rod 4 to fix the electric wire.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a wiring screw for circuit breaker, includes screw (1), the top fixed mounting of screw (1) has nut (2), its characterized in that: the top of screw (1) inner chamber is rotated and is installed connecting block (3), connecting rod (4) are installed in the inside rotation of screw (1), the bottom fixed mounting of connecting block (3) has spring (5), the bottom fixed mounting of connecting rod (4) has fixture block (6).

2. A connector screw for a circuit breaker according to claim 1, wherein: the bottom of the first spring (5) is fixedly connected with the top of the connecting rod (4).

3. A connector screw for a circuit breaker according to claim 1, wherein: the bottom end of the connecting rod (4) penetrates through the screw (1) and extends to the outside of the screw (1).

4. A connector screw for a circuit breaker according to claim 1, wherein: the top of the inner cavity of the fixture block (6) is fixedly provided with a second spring (7), and the number of the second springs (7) is five.

5. A connector screw for a circuit breaker according to claim 1, wherein: the inside slidable mounting of fixture block (6) has movable block (8), the top of movable block (8) and the bottom fixed connection of No. two spring (7).

6. The connector screw for circuit breaker according to claim 5, wherein: the bottom of the movable block (8) penetrates through the fixture block (6) and extends to the outside of the fixture block (6).