CN218137692U - Flexible wrench capable of increasing clamping force - Google Patents

Abstract

The utility model discloses an increase clamping-force's flexible spanner, including handle, E type retaining ring, strap, round pin axle, the front end design of handle has square groove, round pin axle hole, and the round pin axle passes through E type retaining ring to be fixed in the round pin axle hole that is arranged in the square groove, and the strap cover is at the round pin epaxial, is the arc pressure surface below the handle front end, is the profile of tooth cambered surface above the square groove front end, and the strap twines on the tight work piece of clamp that needs along the profile of tooth cambered surface, passes between work piece and the arc pressure surface, returns again between profile of tooth cambered surface and the strap, and the handle is rotatory a little along the work piece outside, and the pull strap presss from both sides the work piece tightly, compresses tightly the handle along the opposite direction again and can fix or turn round the work piece soon to do not have the injury to the work piece. The utility model relates to a rationally, simple structure, easy manufacturing uses, convenient operation, has improved operator's work efficiency greatly.

Description

Flexible wrench capable of increasing clamping force

Technical Field

The utility model belongs to the technical field of manual hardware and tools technique and specifically relates to an increase clamping-force's flexible spanner.

Background

At present, in the actual production working process, a workpiece needs to be clamped or rotated sometimes, meanwhile, the surface of the workpiece cannot be damaged, at the moment, a flexible wrench needs to be used, the clamping force of the existing flexible wrench is small, the flexible wrench is easy to loosen, and the limitation on actual production operation is brought.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art and providing the flexible wrench which has reasonable design, simple structure, easy manufacture and convenient use and increases the clamping force.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an increase clamping-force's flexible spanner, includes handle, E type retaining ring, strap, round pin axle, its characterized in that the front end design of handle has square groove, round pin axle hole, be equipped with the arc below the square groove and press the face, square groove front end upper face is equipped with the profile of tooth cambered surface, the round pin axle is worn in the round pin axle hole that is located the square groove, and inject the position of round pin axle through E type retaining ring, strap one end is equipped with the cover shape structure and overlaps on the round pin axle, the arc of this spanner is pressed on the work piece, the strap twines on the work piece that needs to press from both sides tightly along the profile of tooth cambered surface, continue to pass between work piece and the arc pressure face, again along returning between profile of tooth cambered surface and the strap, the handle is rotatory a little along the opposite direction of centre gripping, the hand pull strap is pressed from both sides tightly the work piece, again along pressing tightly the handle can fix or turn round the work piece soon to the no injury to the work piece surface, the profile of tooth cambered surface has increased its frictional force with the strap to increased the clamping-force, thereby has ensured that the clamping-force is difficult for becoming flexible strap is not hard up.

The utility model relates to a rationally, simple structure, easy manufacturing uses, convenient operation, and labour saving and time saving has improved operator's work efficiency greatly.

Drawings

Figure 1 is the clamping schematic diagram of the utility model.

Fig. 2 is a top view of fig. 1 according to the present invention.

Fig. 3 is a schematic view of the head of the handle of the present invention.

Fig. 4 is a front schematic view of the cloth belt of the present invention.

FIG. 5 is a schematic side view of the cloth belt of the present invention

The labels in the figure are: the device comprises a handle 1, a cloth belt 2, an E-shaped retainer ring 3, a pin shaft 4, a tooth-shaped cambered surface 111, an arc-shaped pressing surface 112, a square groove 113, a pin shaft hole 114 and a workpiece 222.

Detailed Description

As shown in fig. 1 to 5: a flexible wrench for increasing clamping force comprises a handle 1, a cloth belt 2, an E-shaped retainer ring 3 and a pin shaft 4, and is characterized in that a square groove 113 and a pin shaft hole 114 are designed at the front end of the handle 1, an arc-shaped pressing surface 112 is arranged below the square groove 113, a tooth-shaped arc surface 111 is arranged above the front end of the square groove 113, the pin shaft 4 is fixed in the pin shaft hole 114 in the square groove 113 through the E-shaped retainer ring 3, a sleeve-shaped structure is arranged at one end of the cloth belt 2 and sleeved on the pin shaft 4, the arc-shaped pressing surface 112 of the wrench is pressed on a workpiece 222, the cloth belt 2 is wound on the workpiece 222 to be clamped along the tooth-shaped arc surface 111, the workpiece 222 continuously passes through the arc-shaped pressing surface 112 and returns back to the position between the tooth-shaped arc surface 111 and the cloth belt 2, the handle 1 slightly rotates along the clamping direction, the workpiece 222 is clamped by pulling the cloth belt 2 by hand, and the handle 1 is pressed along the clamping direction, and the workpiece 222 can be fixed or twisted.

To sum up, the utility model relates to a rationally, simple structure, easy manufacturing, use, convenient operation, labour saving and time saving easily realizes that an instrument realizes multiple functions in the hand, has improved operator's work efficiency greatly.

Claims (2)

1. The utility model provides an increase clamping-force's flexible spanner, includes handle, E type retaining ring, strap, round pin axle, its characterized in that the front end design of handle has square groove, round pin shaft hole, is equipped with the arc below the square groove and presses the face, and square groove front end upper face is equipped with the profile of tooth cambered surface, and the round pin axle is fixed in the round pin shaft hole in the square groove through E type retaining ring, and strap one end is equipped with the cover shape structure and overlaps and sell epaxially.

2. A flexible spanner for increasing the clamping force as claimed in claim 1, wherein the tooth-shaped structures on the tooth-shaped arc surface are uniformly distributed along the arc surface, and the tooth tip is toward the handle.

Images