CN205290765U - Adjustable spanner - Google Patents

Abstract

The utility model discloses an adjustable spanner, including handle, fixed clamp splice, activity clamp splice, fixed clamp splice and handle are as an organic whole, are equipped with the hexagon trepanning on the fixed clamp splice, are equipped with spout, worm wheel on the handle, are equipped with movable clamp splice in the spout, are equipped with the screw on the activity clamp splice, screw thread and worm wheel interlock. This spanner simple structure, convenient operation, utilization have fixed clamp splice and a movable clamp splice of certain angle, make it when the wrench movement nut, make three times even atresss on the nut, reduce to turn round the probability of decreasing the nut edges and corners, but the hexagonal triangle nut of the multiple specification variation in size of wrench movement.

Description

adjustable wrench

Technical Field The utility model relates to the field of hardware tools, in particular to an adjustable wrench.

Background of the Invention A wrench is a commonly used hand tool installed on dismantling tools to twist bolts, nuts and other openings or socketed fasteners that tighten bolts or nuts with threads by using the principle of leverage. The more common ones are adjustable wrench, dead wrench, ring wrench and socket wrench. In terms of the force applied to twist the hexagon nut, the ordinary wrench and the wrench apply the torque on the two symmetrical surfaces of the hexagon nut. If the force is slightly larger, it is easy to deform the corners of the nut and damage the nut; the ring wrench Torque is applied to the six faces of the nut with the box wrench, but such tools are all set of kits. A little carelessness in use and storage can easily lose a single piece, making the whole set of kits inconvenient to use.

SUMMARY OF THE INVENTION In order to overcome the above-mentioned disadvantages, the utility model provides an adjustable wrench that makes the three sides of the hex nut bear force.

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

An adjustable wrench, comprising a handle, a fixed clip, and a movable clip, the fixed clip and the handle are integrated, the fixed clip is provided with a hexagonal sleeve hole, the handle is provided with a chute, a worm wheel, and a chute A movable clamping block is arranged inside, and a screw thread is arranged on the movable clamping block, and the screw thread is engaged with the worm gear.

The six corners of the hexagonal hole are all 120°, and the included angle between the extension lines of sides a and b is 60°.

The front end of the handle is provided with a chute with a rectangular cross section.

The beneficial effect of the utility model: the structure is simple, the operation is convenient, and the fixed clamping block with a certain angle and a movable clamping block are used to make the nut bear three times of force evenly when twisting the nut, reducing the risk of twisting the corner of the nut. The machine can twist a variety of hexagonal triangular nuts with different specifications and sizes.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation when the utility model uses;

The side sectional view of the utility model of Fig. 3;

1. Handle; 2. Worm wheel; 3. Movable clamp block; 4. Fixed clamp block; 5. Nut.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An adjustable wrench includes a handle 1, a fixed clamp 4, and a movable clamp 3. The fixed clamp 4 and the handle 1 are integrated, and the fixed clamp 4 is provided with a hexagonal sleeve hole. The handle 1 The front end of the chute is provided with a chute with a rectangular cross section, and a movable clamp block 3 is provided in the chute, and a screw thread is provided on the movable clamp block 3. Since the screw thread is engaged with the worm wheel 2, when in use, the worm wheel 2 is rotated to Move the movable clamping block 3 to achieve the purpose of clamping the nut. Side a, side b of the hexagonal hole and side c of the movable clamping block 3 form an equilateral triangle clamping mode, and when the handle is twisted, the force on the three sides of the hexagonal nut is achieved.

Compared with ordinary wrench, dead wrench and ring wrench, adjustable wrench has simple structure and convenient operation.

Claims (3)

1. an adjustable wrench, it is characterized in that: include handle (1), fixing fixture block (4), movable clip block (3), described fixing fixture block and what handle was integrated, fixing fixture block is provided with hexagon trepanning, handle is provided with chute, worm gear (2), being provided with movable clip block (3) in chute, movable clip block is provided with screw thread, and described screw thread is engaged with worm gear.

2. adjustable wrench according to claim 1, it is characterised in that: six angles of described hexagon trepanning are 120 ��.

3. adjustable wrench according to claim 1, it is characterised in that: it is rectangular chute that the front end of described handle is provided with cross section.