CN203192612U - Explosion-proof switch terminal - Google Patents

Abstract

The utility model discloses an explosion-proof switch terminal with convenient operation and high performance reliability. It includes a body and a nut. The upper part of the body is provided with a radial groove, and a movable briquetting block is embedded in the radial groove. Both ends of the movable briquetting block protrude from the radial groove. , the lower part of the body is provided with a hexagonal boss, and the bottom of the body is provided with a screw hole. Because the utility model adopts the body with the radial groove, the movable pressing block is embedded in the radial groove, and the nut is screwed on the structure of the body. The cable connection end can be operated only by peeling off the skin, and the core wire directly penetrates into the radial groove, and the core wire is tightly pressed on the bottom of the radial groove through the cooperation of the pressing block and the nut, which has good contact and reliability. high.

Description

Explosion-proof switch terminal

technical field

The utility model relates to a switch, in particular to a terminal on an explosion-proof switch.

Background technique

At present, the connection methods of various incoming and outgoing cables and explosion-proof switches in coal mines are usually claw-type connections. The specific operation is to first peel off the cable connection end to expose the copper core wire, and then dispose of the copper core wire from the end. Split into two bundles, surround the two bundles of core wires around the inner terminal of the switch, and then fix them with claws and screws. This is cumbersome since the cable must be stripped. When fixing the core wire, the fastening force is applied along the axial direction of the terminal. Therefore, the contact between the core wire and the terminal is unreliable, and the problem of poor contact is prone to occur, which will cause heat, aging, or even short circuit at the joint, which will bring serious problems to coal mine production. to safety hazards.

Contents of the invention

The purpose of the utility model is to provide an explosion-proof switch terminal with convenient operation and high performance reliability.

The technical scheme of the utility model is: including a body and a nut, and the feature is that: the upper part of the body is provided with a radial groove, the bottom of the radial groove is semicircular, and a movable pressing block is embedded in the radial groove, and the movable pressing block There are radial grooves at both ends of the movable briquetting block, a groove on the upper surface of the body, a nut is screwed on the thread, a hexagonal boss on the lower body, and a screw hole on the bottom of the body.

Because the utility model adopts the body with radial grooves, the radial grooves are embedded with movable briquetting blocks, and the nuts are screwed on the structure of the body. The cable connection end can be operated only by peeling off the skin, and the core wire directly penetrates into the radial groove, and the core wire is tightly pressed on the bottom of the radial groove through the cooperation of the pressing block and the nut, which has good contact and reliability. high.

Description of drawings

Fig. 1 is a three-dimensional schematic view of the structure of the utility model.

FIG. 2 is a schematic exploded view of the structure of FIG. 1 .

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings and embodiments, but does not constitute any limitation to the utility model. As shown in Figures 1 and 2, the utility model includes a body 1 and a nut 3, the upper part of the body 1 is provided with a radial groove, the bottom of the radial groove is semicircular, and a movable pressing block 2 is embedded in the radial groove. Both ends of the movable briquetting block 2 protrude from radial grooves, the bottom of the movable briquetting block 2 has a groove, the upper surface of the body 1 is provided with threads, the nut 3 is screwed on the threads, the lower part of the body 1 is provided with a hexagonal boss, and the bottom of the body 1 With screw holes.

Before use, turn the hexagonal boss on the body 1 with a wrench, so that the screw hole at the bottom of the body 1 is screwed into the panel on the power control cabinet as a whole. When in use, put the core wire of the peeled cable into the radial groove, put it into the movable pressing block 2, put the bottom of the movable pressing block 2 on the core wire, and then screw in the nut 3, so that the lower surface of the nut 3 is tightly pressed The upper surface of the movable briquetting block 2 finally tightly fits the core wire with the radial groove and the movable briquetting block 2 .

Claims (1)

1. An explosion-proof switch terminal, including a body (1) and a nut (3), characterized in that: the upper part of the body (1) is provided with a radial groove, the bottom of the radial groove is semicircular, and the radial groove A movable briquetting block (2) is embedded in it, radial grooves protrude from both ends of the movable briquetting block (2), there is a groove at the bottom of the movable briquetting block (2), threads are provided on the surface of the upper section of the body (1), and nuts (3) Screw on the thread, the lower part of the body (1) is provided with a hexagonal boss, and the bottom of the body (1) is provided with a screw hole.

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