CN209903077U

CN209903077U - Insulating torque wrench

Info

Publication number: CN209903077U
Application number: CN201920593902.9U
Authority: CN
Inventors: 欧阳定文
Original assignee: Shanghai Ou Wei Si Instrument Manufacturing Co Ltd
Current assignee: Shanghai Ou Wei Si Instrument Manufacturing Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-01-07
Anticipated expiration: 2029-04-28

Abstract

The utility model relates to a torque wrench, and discloses an insulated torque wrench, which comprises a tube body, a wrench head inserted into the tube body, a jacking piece, a slipping mechanism and a torque adjusting mechanism; the slipping mechanism comprises a butting seat and an elastic piece butting against one end of the butting seat far away from the jacking piece, and one end of the elastic piece far away from the butting seat is butted with the torsion adjusting mechanism; the torque force adjusting mechanism comprises a butting column which is in transmission connection with the butting seat and is in threaded connection with the inside of the pipe body, the butting column butts against the elastic piece, a scale plate is sleeved on the butting column and extends out of the pipe body, an indicating piece is connected with the outside of the pipe body, and the butting column is in direct butting connection with the elastic piece; torsion adjustment mechanism's torsion is positive correlation with the length of butt post screw in pipe shaft, thereby rotates the butt seat and can drive the butt post and change torsion adjustment mechanism at the pipe shaft internal rotation, and the scale plate moves along with the butt post, and the directive scale of indicator also takes place corresponding change to show current torsion in real time.

Description

Insulating torque wrench

Technical Field

The utility model relates to a torque wrench, more specifically says that it relates to an insulating torque wrench.

Background

Torque wrenches, also known as torque wrenches or torque wrenches, are one type of wrench that is primarily characterized by the ability to set torque for tightening bolts. The high-strength bolt can be divided into a torsional shear type and a large hexagonal type, the high-strength bolt is generally fastened firstly and then finally, each step needs strict torque requirements, and a fixed torque wrench must be used for the initial fastening and the final fastening of the large hexagonal high-strength bolt.

Most of the existing torque wrenches are mostly unadjustable and cannot display torque in real time through scales, so that wrenches with different torques need to be used when different torques are needed, and the work efficiency can be greatly reduced when the wrenches are replaced.

SUMMERY OF THE UTILITY MODEL

To current technical problem, the utility model provides an insulating torque wrench, it has the adjustable and advantage that can show in real time of torsion.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an insulated torque wrench comprises a tube body, a wrench head inserted into the tube body, a jacking piece hinged with the wrench head, a slipping mechanism abutted with the jacking piece and a torque adjusting mechanism abutted with the slipping mechanism;

the slipping mechanism comprises a butting seat butted with the propping piece and an elastic piece butted on one end of the butting seat far away from the propping piece, and one end of the elastic piece far away from the butting seat is butted with the torsion adjusting mechanism;

the torque force adjusting mechanism comprises a butting column which is in transmission connection with the butting seat and is in threaded connection with the pipe body, the butting column butts against the elastic piece, a scale plate is sleeved on the butting column and extends out of the pipe body, an indicating piece which indicates scales on the scale plate is fixedly connected with the outside of the pipe body, and the butting column is in direct butting with the elastic piece.

Through above-mentioned technical scheme, torsion adjustment mechanism's torsion is positive correlation with the length of butt post screw in pipe shaft, thereby rotates the butt seat and can drive the butt post and change torsion adjustment mechanism at the pipe shaft internal rotation, and the scale plate moves along with the butt post, and the directive scale of indicator also takes place corresponding change to current torsion shows in real time.

Further, the indicating part comprises an indicating sleeve fixedly connected to the outside of the pipe body, the indicating sleeve wraps the scale plate, and an indicating groove exposing scales is formed in the indicating sleeve.

Through above-mentioned technical scheme, indicate the cover to cover the scale plate in order to let the mark that indicates the groove and expose needs the show.

Furthermore, the indication groove is internally connected with a transparent window in a clamping manner, and the transparent window is fixedly connected with an indication line.

Through above-mentioned technical scheme, the transparent window can let the user see the scale of the inside, and the scale of current torsion is instructed to the instruction line.

Furthermore, a limiting piece is pressed between the abutting column and the abutting seat.

Through above-mentioned technical scheme, the locating part can be after letting the butt post break away from the body.

Furthermore, the middle part of the wrench head is hinged with the pipe body, the insertion end of the wrench head is provided with a crimping sharp corner, and the part of the jacking piece abutted against the wrench head is provided with a crimping groove matched with the crimping sharp corner in shape.

Through above-mentioned technical scheme, the spanner head receives reaction force to rotate the back on the pipe shaft and drives the top through crimping closed angle and crimping recess and hold a butt and connect the slippage structure, adjusts the elasticity that the structure changed the elastic component through torsion, changes the torsion of spanner, and the crimping closed angle can drive the top and hold a piece in the crimping recess.

Furthermore, the top holding piece is far away from be provided with on the lateral wall of spanner head with the top holding circular arc limit of slippage mechanism contact, the constant head tank has been seted up on the top holding circular arc limit, the constant head tank butt has the top to hold the ball, top hold the ball with butt seat butt.

Through above-mentioned technical scheme, the top is held the circular arc limit and is held the ball butt cooperation with the top, can make the torsion on the spanner head be greater than and make the spanner head rotate until between the unable pivoted region of spanner head after the torsion that the elastic component moved, keeps torsion unchangeable.

Furthermore, an abutting arc-shaped groove matched with the abutting spherical shape is formed in the abutting seat.

Through the technical scheme, the jacking ball rotates in the abutting arc-shaped groove, so that the position of the jacking ball is limited.

Compared with the prior art, the beneficial effects of the utility model are that: the spanner head receives the reaction force to rotate the back on the pipe shaft and drives the top through crimping closed angle and crimping recess and hold a butt joint slippage structure, through the elasticity of torsion adjustment structural change elastic component, change the torsion of spanner, the crimping closed angle cooperates with the crimping recess, torsion adjustment mechanism's torsion is positive correlation with the length of butt post screw in pipe shaft, thereby it can drive the butt post and change torsion adjustment mechanism at the pipe shaft internal rotation to rotate the butt seat, and the butt post is followed to the scale plate and is removed together, the corresponding change also takes place for the directional scale of indicator, thereby carry out real-time display to current torsion.

Drawings

FIG. 1 is a schematic view of an overall structure of a wrench head and a slipping mechanism according to an embodiment of the present invention;

fig. 2 is a schematic view of an overall structure of the torque adjusting mechanism and the indicating member according to the embodiment of the present invention.

Reference numerals: 1. a tube body; 2. a wrench head; 3. pressing a sharp corner; 4. a holding member; 41. crimping the groove; 42. supporting the arc edge; 43. positioning a groove; 5. supporting the ball; 6. a butting seat; 61. abutting against the arc-shaped groove; 7. an elastic member; 8. a butting post; 9. a limiting member; 10. a scale plate; 11. an indicator; 111. an indicating sleeve; 112. an indication groove; 113. a transparent window; 114. an indicator line; 12. a connecting rod.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Examples

An insulating torque wrench, as shown in fig. 1, comprises a square tube body 1, a long plate-shaped wrench head 2 is inserted into the tube body 1, the middle part of the wrench head 2 is rotatably connected with the tube body 1 through a rotating shaft, one end of the wrench head 2 extends out of the tube body 1, and the other end of the wrench head 2 is rotatable in the tube body 1 and is abutted against the inner wall of the tube body 1. The end that spanner head portion 2 is located pipe shaft 1 is for inserting the end and an organic whole is provided with crimping closed angle 3, and crimping closed angle 3 butt has a top to hold 4, holds on the top to offer on 4 with crimping closed angle 3 shape fit and the crimping recess 41 of pegging graft each other. The propping piece 4 is hinged with the inserting end through the connecting rod 12, and the connecting rod 12 prevents the crimping sharp corner 3 from completely separating from the crimping groove 41.

The side of the top holding piece 4 far away from the wrench head 2 is abutted with a slip-off mechanism. The side wall of the propping piece 4 far away from the wrench head 2 is provided with a propping arc edge 42 contacted with the slipping mechanism, and the crimping sharp corner 3 does not face the center of the propping arc edge 42. The top holding arc edge 42 is provided with a positioning groove 43 with an opening facing the slipping structure, the positioning groove 43 is abutted with the top holding ball 5, and the volume of the top holding ball 5 is larger than that of the positioning groove 43. One end of the supporting piece 4 far away from the supporting ball 5 is abutted with a plate-shaped abutting seat 6, and the abutting seat 6 is provided with an abutting arc-shaped groove 61 matched with the supporting ball 5 in shape. The slipping mechanism comprises a butting seat 6 and an elastic piece 7 which is butted on one end of the butting seat 6 far away from the propping piece 4, the elastic piece 7 is a spring, and one end of the elastic piece 7 far away from the butting seat 6 is butted with a torsion adjusting mechanism.

As shown in fig. 2, the torque force adjusting mechanism includes a cylindrical abutting column 8 screwed in the pipe body 1, one end of the abutting column 8 abuts against the elastic member 7, the other end of the abutting column is set to be hexagonal, a hexagonal groove for sleeving the end part of the abutting column 8 is formed in the abutting seat 6 towards one end of the pipe body 1, the abutting seat 6 can drive the abutting column 8 to rotate together after rotating, and the abutting column 8 is enabled to move in the pipe body 1. A limiting part 9 made of a spring is pressed between the abutting column 8 and the abutting seat 6. The side of the abutting column 8 is provided with an annular groove with a coaxial line, the annular groove is sleeved with a scale plate 10, one end of the scale plate 10 extends out of the pipe body 1, the extending end part of the scale plate 10 is parallel to the side wall of the pipe body 1, and a scale representing the torque force value is carved on the surface of the end part, far away from the pipe body 1.

The pipe shaft 1 is externally clamped with an indicating piece 11 for indicating scales on the scale plate 10, the indicating piece 11 comprises an indicating sleeve 111 fixed outside the pipe shaft 1 in a clamping manner, the indicating sleeve 111 wraps the scale plate 10, and the indicating sleeve 111 is provided with an indicating groove 112 exposing the scales. The inner edge of the indication groove 112 is clamped with a transparent window 113 made of transparent plastic or transparent glass, and a protruding indication line 114 or a recessed indication line 114 is engraved on the transparent window 113 in an integral injection molding manner.

When using the insulated torque wrench, the user holds the indicating sleeve 111, and the indicating sleeve 111 is made of an insulating material, so that electric shock can be prevented. Spanner head 2 receives reaction force and rotates on pipe shaft 1, it drives crimping closed angle 3 through the pin joint with pipe shaft 1 and is the arc motion to rotate the back, 3 tops of crimping closed angle connect crimping recess 41's inner wall and draw through connecting rod 12 and connect the top and hold piece 4, let the top hold piece 4 and be circular motion, and the top is held ball 5 and is injectd by pipe shaft 1 inner wall in 1 inside of pipe shaft, the top is held 4 and is made the top after rotating and hold ball 5 and climb out constant head tank 43, and to the direction motion of keeping away from spanner head 2, compress elastic component 7 through butt joint seat 6. The wrench head 2 impacts the inner wall of the pipe body 1 to make a sound to indicate that the torque value is reached. Drive through crimping closed angle 3 and crimping recess 41 and push up and hold 4 tops and connect the slippage structure, through the elasticity that the structure changed elastic component 7 is adjusted to torsion, change the torsion of spanner, connecting rod 12 limits crimping closed angle 3 in crimping recess 41, and the cooperation of crimping closed angle 3 and crimping recess 41 can avoid spanner head 2 and the top to hold slippage between 4, reduces unnecessary wearing and tearing between the two, has improved life.

Through the elasticity that torsion adjustment structure changed elastic component 7, change the torsion of spanner, crimping closed angle 3 and crimping recess 41 cooperation, torsion adjustment mechanism's torsion is positive correlation with the length of 8 screw in pipes of butt post 1, thereby it can drive the butt post 8 and change torsion adjustment mechanism in the internal rotation of pipes 1 to rotate butt seat 6, and scale plate 10 follows butt post 8 and removes together, the instruction line 114 on the indicator 11 is unchangeable, therefore corresponding change also takes place for directional scale, thereby show current torsion in real time, have that torsion is adjustable and can real time display's advantage

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An insulated torque wrench is characterized by comprising a tube body (1), a wrench head (2) inserted into the tube body (1), a jacking piece (4) hinged with the wrench head (2), a slipping mechanism abutted with the jacking piece (4) and a torque adjusting mechanism abutted with the slipping mechanism;

the slipping mechanism comprises a butting seat (6) butted with the propping piece (4) and an elastic piece (7) butted on one end, far away from the propping piece (4), of the butting seat (6), and one end, far away from the butting seat (6), of the elastic piece (7) is butted with the torsion adjusting mechanism;

the torque force adjusting mechanism comprises a butting column (8) connected with the butting seat (6) in a transmission mode and in threaded connection with the pipe body (1), the butting column (8) butts against the elastic piece (7), a scale plate (10) is sleeved on the butting column (8), the scale plate (10) extends out of the pipe body (1), an indicating piece (11) for indicating scales on the scale plate (10) is fixedly connected to the outer side of the pipe body (1), and the butting column (8) is directly abutted to the elastic piece (7).

2. The insulated torque wrench according to claim 1, wherein the indicating member (11) comprises an indicating sleeve (111) fixedly connected to the outside of the tube body (1), the indicating sleeve (111) wraps the scale plate (10), and the indicating sleeve (111) is provided with an indicating groove (112) exposing the scale.

3. The insulated torque wrench according to claim 2, wherein a transparent window (113) is clamped in the indication groove (112), and an indication line (114) is fixedly connected to the transparent window (113).

4. The insulating torque wrench according to claim 1, characterized in that a stopper (9) is compressed between the abutment post (8) and the abutment seat (6).

5. The insulated torque wrench according to claim 1, wherein the middle part of the wrench head (2) is hinged to the tube body (1), the insertion end of the wrench head (2) is provided with a crimping sharp corner (3), and the part of the jacking piece (4) abutting against the wrench head (2) is provided with a crimping groove (41) which is matched with the crimping sharp corner (3) in shape.

6. The insulated torque wrench according to claim 1, wherein a top circular arc edge (42) contacting the slipping mechanism is disposed on a side wall of the top holder (4) away from the wrench head (2), a positioning groove (43) is disposed on the top circular arc edge (42), a top holding ball (5) abuts against the positioning groove (43), and the top holding ball (5) abuts against the abutting seat (6).

7. The insulated torque wrench according to claim 6, wherein the abutment seat (6) is provided with an abutment arc-shaped groove (61) which is matched with the abutment ball (5) in shape.