CN202878199U - Screwdriver with self screw-clamping function - Google Patents

Abstract

The utility model discloses a self-clamping screwdriver, comprising a screwdriver, a sliding sleeve (2) is set on the taper rod (1) of the screwdriver, and two symmetrical elastic clamping plates are arranged on the front end of the sliding sleeve (2). 4), the ends of the two clamping plates (4) have arc-shaped grooves and the front ends of the two clamping plates (4) are bent inward, and the two clamping plates (4) are equipped with The rod guides the guide groove (7). Two pairs of guide posts (3, 5) with top caps are arranged on the tapered rod (1) of the screwdriver. The guide posts (3, 5) match the guide groove (7). When the sleeve (2) slides forward, the end of the clamping plate (4) opens, and when the sliding sleeve (2) slides backward, the end of the clamping plate (4) closes up to clamp the screw. Compared with the prior art, after using the self-clamping screwdriver of the utility model, taking the secondary wiring of the transformer as an example, the wiring efficiency is increased by more than 5 times.

Description

self-holding screwdriver

technical field

The utility model relates to a screwdriver, in particular to a self-clamping screwdriver.

Background technique

In the power system, in order to ensure good conduction effect in the secondary wiring position of many devices, the screws used are all copper screws, and the screws are relatively short, generally no more than one centimeter. In order to ensure that the wiring does not loosen, there are flat pads and spring pads on the screws. When the secondary wire is put on the screw for wiring, due to the small space in the junction box, the copper screw does not respond to the magnetic screwdriver, and the screw will not be fixed well, which seriously affects the wiring efficiency. Therefore, designing a kind of self-clamping screwdriver is a technical problem to be solved at present.

Contents of the invention

The technical problem to be solved by the utility model is to provide a self-clamping screwdriver.

The technical scheme that the utility model solves its technical problem is:

Self-clamping screwdrivers, including screwdrivers, are fitted with a sliding sleeve on the cone rod of the screwdriver. The front end of the sliding sleeve is provided with two symmetrical elastic clamping plates. The ends of the two clamping plates have arc-shaped grooves and two The front ends of the two clamping plates are all bent inward, and rod-oriented guide grooves are provided on the two clamping plates, and two pairs of guide posts with top caps are arranged on the taper rod of the screwdriver. To match, the ends of the clamping plate open when the sliding sleeve slides forward, and the ends of the clamping plate close when the sliding sleeve slides backward to clamp the screw.

As a preferred solution of the utility model, a handle is provided on the sliding sleeve.

As a preferred solution of the present utility model, the guide column with a top cap is a round-head screw, and the round-head screw is screwed into the screw hole on the tapered rod. The screw holes are through holes or blind holes.

Said screwdriver is a flat-head screwdriver or a cross-head screwdriver. The taper rod of the screwdriver is a round rod or a square rod.

Compared with the prior art, after using the self-clamping screwdriver of the utility model, taking the secondary wiring of the transformer as an example, the wiring efficiency is increased by more than 5 times.

Description of drawings

Fig. 1 is the front view of the structural representation of the utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is A-A to sectional view among Fig. 1;

Fig. 4 is an enlarged view of part I in Fig. 1;

Fig. 5 is a partial view along the direction B of Fig. 1 .

Detailed ways

As shown in the figure, the self-clamping screwdriver, including the screwdriver, is fitted with a sliding sleeve 2 on the taper rod 1 of the screwdriver, and the front end of the sliding sleeve 2 is provided with two symmetrical elastic clamping plates 4, two clamping plates 4 There are arc-shaped grooves at the ends of the two clamping plates 4, and the front ends of the two clamping plates 4 are all bent inwardly. The two clamping plates 4 are provided with rod-oriented guide grooves 7, and the taper rod 1 of the screwdriver is provided with Two pairs of guide posts 3 and 5 with top caps, the guide posts 3 and 5 are matched with the guide groove 7, when the sliding sleeve 2 slides forward, the end of the clamping plate 4 is opened, when the sliding sleeve 2 slides backward, clamp The end of holding plate 4 closes clamping screw.

A handle 6 is provided on the sliding sleeve 2 .

The guide columns 3 and 5 with top caps are round-head screws, and the round-head screws are screwed in the screw holes on the tapered rod 1 .

The screw holes are through holes or blind holes.

Said screwdriver is a flat-head screwdriver or a cross-head screwdriver.

The taper rod 1 of screwdriver is round rod or square rod.

Claims (6)

1. Self-clamping screwdrivers, including screwdrivers, are characterized in that a sliding sleeve (2) is set on the cone rod (1) of the screwdriver, and the front end of the sliding sleeve (2) is provided with two symmetrical elastic clamping plates ( 4), the ends of the two clamping plates (4) have arc-shaped grooves and the front ends of the two clamping plates (4) are bent inward, and the two clamping plates (4) are equipped with The rod guides the guide groove (7). Two pairs of guide posts (3, 5) with top caps are arranged on the tapered rod (1) of the screwdriver. The guide posts (3, 5) match the guide groove (7). When the sleeve (2) slides forward, the end of the clamping plate (4) opens, and when the sliding sleeve (2) slides backward, the end of the clamping plate (4) closes up to clamp the screw. 2. The self-clamping screwdriver according to claim 1, characterized in that a handle (6) is provided on the sliding sleeve (2). 3. The self-clamping screwdriver according to claim 1 or 2, characterized in that, the guide posts (3, 5) with top caps are round-head screws, and the round-head screws are screwed on the cone rod (1 ) in the screw holes on the 4. The self-clamping screwdriver according to claim 3, wherein the screw holes are through holes or blind holes. 5. The self-clamping screwdriver according to claim 1, wherein the screwdriver is a slotted head screwdriver or a cross head screwdriver. 6. The self-clamping screwdriver according to claim 1, characterized in that the taper rod (1) of the screwdriver is a round rod or a square rod.

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