CN211163733U

CN211163733U - Preset torque wrench

Info

Publication number: CN211163733U
Application number: CN201921997772.1U
Authority: CN
Inventors: 柯善淼
Original assignee: Wuhan Tianyuda Precision Machinery Co ltd
Current assignee: Wuhan Tianyuda Precision Machinery Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-08-04
Anticipated expiration: 2029-11-19

Abstract

The utility model relates to a spanner field specifically discloses preset torque wrench, including wrench end subassembly, the body of rod, sleeve, handle, its characterized in that wrench end subassembly is connected with sleeve one end, sleeve one end is connected with the body of rod, the body of rod other end sets up the handle, set up one on the body of rod and can follow the gliding casing of the body of rod, can contact with the handle when the casing slides to handle department, when the casing to the sleeve slides, can expose handle department scale, the internal diameter of casing is less than the diameter of handle, the handle rear end is connected with locking device. The utility model discloses simple structure, and can effectually prevent the wearing and tearing of scale.

Description

Preset torque wrench

Technical Field

The utility model relates to a spanner field, concretely relates to preset torque wrench.

Background

The torque wrench is also called a torque meter and a torque screwdriver. The device is designed according to the bending principle of a beam, the bending principle of a torsion bar and the compression principle of a spiral spring, and can measure the moment acting on a nut.

The preset torque wrench has the following characteristics:

1. with preset torque values and sound means. When the tightening torque of the fastener reaches a preset value, the fastening torque can automatically send out a click signal accompanied by obvious hand feeling vibration to prompt the completion of work. After the acting force is relieved, all related parts of the wrench can be automatically reset.

2. Two directions can be switched. When the ratchet wheel steering switch is turned, the spanner can apply force counterclockwise.

3. Metric and imperial (N.m, 1bf.ft) double scale lines; handle differential scale lines. The reading is clear and accurate.

4. The alloy steel material is forged, and is firm and durable, and the service life is long. Calibration dates back to the national institute of technology and standards (NBS).

However, the preset torque wrench is provided with the graduated scale, so that the preset torque wrench is easy to wear in the use process, namely the graduated scale and the square tenon.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at overcoming the defect among the prior art, provide preset torque wrench, can effectually prevent the wearing and tearing of spanner handle department scale mark.

The utility model discloses a preset torque wrench, including wrench end subassembly, the body of rod, sleeve, handle, wrench end subassembly is connected with sleeve one end, sleeve one end is connected with the body of rod, the body of rod other end sets up the handle, handle department sets up one and can follow the gliding shell structure of handle, shell structure's internal diameter is less than the diameter of handle shell, the handle rear end is connected with locking device.

Further, the sleeve can be disassembled and replaced.

Furthermore, an anti-abrasion layer is plated at the joint of the sleeve and the square tenon.

Further, a main scale window is arranged at the handle.

The utility model has the advantages that: the utility model discloses a preset torque wrench prevents the wearing and tearing of handle department scale mark through setting up the slidable casing, plates the abrasionproof layer in sleeve and square tenon junction, prevents the wearing and tearing of kneck.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a side view of the present invention;

fig. 2 is a top view of the present invention.

Reference numerals: 1. the wrench head assembly comprises a wrench head assembly, a rod body 2, a sleeve 3, a handle 4, a shell 5 and a main scale window 6.

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.

As shown in fig. 1, the preset torque wrench in this embodiment includes a wrench head assembly 1, a rod body 2, a sleeve 3, and a handle 4, the wrench head assembly 1 is connected to one end of the sleeve 3, one end of the sleeve 3 is connected to the rod body 2, the other end of the rod body 2 is provided with the handle 4, a casing 5 capable of sliding along the rod body 2 is disposed on the rod body 2, the casing 5 can contact with the handle 4 when sliding to the handle 4, the casing 5 can slide to the sleeve 3 to expose a graduated scale at the handle 4, the inner diameter of the casing 5 is smaller than the diameter of the handle 4, and the rear end of the handle 4 is connected to a locking device.

Before the use, slide 5 sleeve directions with the casing, expose the scale, adjust spanner to required torsion value department, then pull the spanner, when reaching this predetermined moment, pointer on the indicator will rotate to round pin axle one side, and the pointer collides with the round pin axle at last, leads to sensing signal and tells the operator, uses up the back, slides 5 handle places with the casing, and the protection scale does not receive wearing and tearing.

In this embodiment, the sleeve 3 can be removed and replaced, and different types of joints can be used.

In this embodiment, the joint of the sleeve 3 and the square tenon is plated with an anti-abrasion layer to prevent the interface from being abraded.

In this embodiment, handle 4 department still sets up main scale window, makes things convenient for the reading.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. Preset torque wrench, including wrench end subassembly (1), the body of rod (3), sleeve (2), handle (4), its characterized in that: wrench head subassembly (1) is connected with sleeve (2) one end, sleeve (2) one end is connected with the body of rod (3), the body of rod (3) other end is connected with handle (4), set up one on the body of rod (3) and can follow body of rod (3) gliding casing (5), locate to slide to handle (4) when casing (5) and can offset with handle (4), when casing (5) to sleeve (2) slides, can expose the scale on the body of rod (3), the internal diameter of casing (5) is less than the external diameter of handle (4), handle (4) rear end is connected with locking device.

2. The preset torque wrench as claimed in claim 1, wherein: the sleeve (2) and the rod body (3) are detachably connected.

3. The preset torque wrench as claimed in claim 1, wherein: and an anti-abrasion layer is plated at the joint of the sleeve (2) and the square tenon.

4. The preset torque wrench as claimed in claim 1, wherein: a main scale window (6) is also arranged at the handle (4).