CN216180105U

CN216180105U - Pneumatic wrench with conveniently-replaced wrench head

Info

Publication number: CN216180105U
Application number: CN202122647450.8U
Authority: CN
Inventors: 杜恒; 连菲
Original assignee: Dunn Wuhan Machinery Co ltd
Current assignee: Dunn Wuhan Machinery Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-05
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses a pneumatic wrench with a wrench head convenient to replace, which comprises a pneumatic wrench body, wherein a loop bar is rotated on the pneumatic wrench body, an installation groove is formed in the loop bar, a fixed block is slidably inserted into the installation groove, the wrench head is fixed on the fixed block, and the loop bar is provided with an installation bar for locking the fixed block; according to the utility model, the fixing block of the mounting rod limiting quadrangular structure is mounted in the loop bar to support the wrench head, the mounting rod is separated from the fixing block through upward sliding, so that the wrench head can be slid to separate the fixing block from the loop bar, and other wrench heads can be conveniently replaced.

Description

Pneumatic wrench with conveniently-replaced wrench head

Technical Field

The utility model relates to the field of pneumatic wrenches, in particular to a pneumatic wrench with a wrench head convenient to replace.

Background

A pneumatic wrench, also called a ratchet wrench and an electric tool assembly, mainly provides a tool with high torque output with minimum consumption, the pneumatic wrench drives a loop bar to rotate, and drives a wrench head connected with the loop bar to rotate, loosen and fasten a bolt.

When the sleeve rod of traditional pneumatic wrench installation is connected with the wrench head, the wrench head is difficult to dismantle, and the wrench head is installed on the sleeve rod and is difficult to support tightly, is unfavorable for tearing loose, fastening hexagon socket head cap screw, and for this reason, we propose a conveniently change pneumatic wrench of wrench head and be used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide the pneumatic wrench with the wrench head convenient to replace.

The utility model provides the following technical scheme: a pneumatic wrench convenient for replacing a wrench head comprises a pneumatic wrench body, wherein a loop bar is rotated on the pneumatic wrench body, the loop bar is provided with an installation groove, a fixed block is slidably inserted into the installation groove, the wrench head is fixed on the fixed block, and the loop bar is provided with an installation rod used for locking the fixed block;

a rectangular sliding column used for tightly abutting against the fixed block slides in the sleeve rod, a pressing block is connected to the rectangular sliding column in a threaded mode, the pressing block is in close contact with the fixed block, and a second spring is fixed between the rectangular sliding column and the sleeve rod.

Preferably, the loop bar is slidably connected with the mounting bar, the mounting bar is slidably inserted into the fixing block, and a first spring is fixed between the mounting bar and the loop bar.

Preferably, the loop bar is connected with a sliding bar of a T-shaped structure in a sliding manner, one end of the sliding bar is fixed with a locking bar, and the locking bar of the L-shaped structure is in close contact with the top end of the mounting bar.

Preferably, the fixing block is provided with a jack.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the fixing block for limiting the quadrangular structure by the mounting rod is mounted in the sleeve rod to support the wrench head, and the mounting rod is separated from the fixing block by sliding upwards, so that the wrench head can be slid to separate the fixing block from the sleeve rod, and the replacement of other wrench heads is facilitated.

2. The elastic force of the second spring in the compressed state pushes the pressing block to extrude the fixing block, so that the fixing block abuts against the mounting rod, the fixing block and the wrench head are prevented from loosening, and the loosening and fastening of the hexagon socket head cap screw are facilitated.

3. When the fixed block is separated from the loop bar, the press block is rotated to move left, so that the compression degree of the second spring is adjusted when the fixed block is contacted with the press block, and different types of wrench heads can be supported tightly according to requirements.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the construction of the loop bar, mounting bar and mounting block of the present invention;

FIG. 3 is a schematic structural diagram of the wrench head of the present invention.

In the figure: 1. the pneumatic wrench comprises a pneumatic wrench body, 2, a sleeve rod, 3, a wrench head, 4, an installation rod, 5, a fixing block, 6, a first spring, 7, a jack, 8, a locking rod, 9, a sliding rod, 10, a rectangular sliding column, 11, a second spring, 12, a pressing block, 13 and an installation groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a pneumatic wrench convenient for replacing a wrench head comprises a pneumatic wrench body 1, wherein a loop bar 2 is rotated on the pneumatic wrench body 1, a mounting groove 13 is formed in the loop bar 2, a fixing block 5 is slidably inserted into the mounting groove 13, the wrench head 3 is fixed on the fixing block 5, and a mounting rod 4 used for locking the fixing block 5 is arranged on the loop bar 2; according to the utility model, the sleeve rod 2 and the wrench head 3 are driven to rotate through the work of the pneumatic wrench body 1, the hexagon socket head cap screw is driven to rotate to loosen and fasten, the fixing block 5 with the quadrangular prism structure limited by the mounting rod 4 is mounted in the sleeve rod 2 to support the wrench head 3, the upper sliding mounting rod 4 is separated from the fixing block 5, the wrench head 3 can be slid to separate the fixing block 5 from the sleeve rod 2, and the replacement of other wrench heads 3 is facilitated.

A rectangular sliding column 10 for tightly abutting against the fixed block 5 slides in the sleeve rod 2, a pressing block 12 is connected to the rectangular sliding column 10 in a threaded mode, the pressing block 12 is in close contact with the fixed block 5, a spring II 11 is fixed between the rectangular sliding column 10 and the sleeve rod 2, the cross section of the rectangular sliding column 10 is of a square structure, the rectangular sliding column 10 cannot rotate, and therefore the pressing block 12 can be rotated; fixed block 5 is spacing in loop bar 2 through installation pole 4 in, the elasticity of two 11 springs of compression state promotes briquetting 12 extrusion fixed block 5, make fixed block 5 support tight installation pole 4, prevent fixed block 5, wrench end 3 is not hard up, do benefit to the pine of tearing open of carrying on hexagon socket head cap screw, the fastening, when fixed block 5 breaks away from loop bar 2, rotate 12 left side shifts of briquetting, adjust two 11 compression degrees of spring when making

fixed block

5 and 12 contacts of briquetting, do benefit to and support tight different grade type wrench end 3 according to the demand.

As a technical optimization scheme of the utility model, the loop bar 2 is connected with the mounting bar 4 in a sliding manner, the mounting bar 4 is inserted into the fixing block 5 in a sliding manner, and a spring I6 is fixed between the mounting bar 4 and the loop bar 2; the mounting rod 4 is tightly propped against the sleeve rod 2 and the fixing block 5 through the elastic force of the first spring 6, so that the fixing block 5 is locked in the sleeve rod 2.

As a technical optimization scheme of the utility model, the loop bar 2 is connected with a slide bar 9 with a T-shaped structure in a sliding way, one end of the slide bar 9 is fixed with a locking bar 8, the loop bar 2 is provided with a sliding chute for the slide bar 9 to slide, the slide bar 9 with the T-shaped structure cannot be separated from the sliding chute, and the locking bar 8 with the L-shaped structure is tightly contacted with the top end of the mounting bar 4; by sliding the slide rod 9 to the right, the locking rod 8 is moved to be separated from the top end of the mounting rod 4, and the mounting rod 4 can slide upwards to be separated from the fixing block 5.

As a technical optimization scheme of the utility model, the fixing block 5 is provided with a jack 7, and the jack 7 is used for sucking in the mounting rod 4 and limiting and locking the mounting block 4.

The working principle is as follows: according to the utility model, the sleeve rod 2 and the wrench head 3 are driven to rotate through the work of the pneumatic wrench body 1, the hexagon socket head cap screw is driven to rotate for loosening and fastening, the fixing block 5 with the quadrangular prism structure limited by the mounting rod 4 is mounted in the sleeve rod 2 to support the wrench head 3, the upper sliding mounting rod 4 is separated from the fixing block 5, the wrench head 3 can be slid to separate the fixing block 5 from the sleeve rod 2, the replacement of other wrench heads 3 is facilitated, and the elastic force of the spring II 11 pushes the pressing block to abut against the mounting block 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a conveniently change air wrench of spanner head, includes air wrench body (1), air wrench body (1) rotates has loop bar (2), its characterized in that: the sleeve rod (2) is provided with an installation groove (13), the installation groove (13) is inserted with a fixed block (5) in a sliding manner, the fixed block (5) is fixed with a wrench head (3), and the sleeve rod (2) is provided with an installation rod (4) used for locking the fixed block (5);

a rectangular sliding column (10) used for abutting against the fixing block (5) is arranged in the sleeve rod (2) in a sliding mode, a pressing block (12) is connected to the rectangular sliding column (10) in a threaded mode, the pressing block (12) is in close contact with the fixing block (5), and a second spring (11) is fixed between the rectangular sliding column (10) and the sleeve rod (2).

2. The pneumatic wrench with the wrench head convenient to replace as claimed in claim 1, wherein: loop bar (2) sliding connection installation pole (4), installation pole (4) sliding insertion in fixed block (5), installation pole (4) with be fixed with spring (6) between loop bar (2).

3. The pneumatic wrench with the wrench head convenient to replace as claimed in claim 1, wherein: the loop bar (2) is connected with a sliding bar (9) of a T-shaped structure in a sliding mode, a locking bar (8) is fixed at one end of the sliding bar (9), and the locking bar (8) of the L-shaped structure is in close contact with the top end of the installation bar (4).

4. The pneumatic wrench with the wrench head convenient to replace as claimed in claim 1, wherein: the fixed block (5) is provided with an insertion hole (7).