CN218018215U

CN218018215U - Torque wrench

Info

Publication number: CN218018215U
Application number: CN202221244993.3U
Authority: CN
Inventors: 白利锋; 王亚洲
Original assignee: Suzhou Industrial Park Jietai Packaging Materials Co ltd
Current assignee: Suzhou Industrial Park Jietai Packaging Materials Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-12-13
Anticipated expiration: 2032-05-23

Abstract

The utility model relates to a torque wrench, including the cassette, the joint sleeve, ball and adjustment mechanism, be provided with the jack catch on the cassette, the joint sleeve is connected with the cassette, adjustment mechanism includes rotatory sleeve, the utility model discloses an inlay the second lug of ball in locating rotatory sleeve's through-hole, through removing rotatory sleeve, utilize through-hole and second lug to make the ball remove, because the ball activity sets up in the joint sleeve, the joint sleeve is fixed motionless, the ball removes and makes the recess contact extrusion on first lug and the joint sleeve produce the frictional force and provide invariable moment of torsion, and can predetermine required torque value according to actual need, recycle first spacing groove and the crisscross back support ball conduction moment of torsion of second spacing groove, at last drive the jack catch rotation on the cassette through rotating the joint sleeve, and then drive the turning block rotation, adjust the stroke of dog, the constant torque output has been realized, the harmful effects that the too big production of moment of torsion has been avoided, the reliability of dog stroke regulation has been improved greatly.

Description

Torque wrench

Technical Field

The utility model belongs to the technical field of the anchor clamps tool technique and specifically relates to indicate a torque wrench.

Background

When transporting optical film, generally adopt to place optical film in the box, the reuse stopper carries out spacing transportation, because the box size differs, therefore the stopper is swing joint usually, for the dead state of non-lock, will appear following condition: the box constantly shakes the striking stopper in transit, stopper will produce not hard up long-time, lead to spacing inefficacy, make the diaphragm rock in the box, cause the damage of diaphragm easily, so generally will increase supporting mechanism at the rear of stopper, supporting mechanism sets up in the spacing groove, supporting mechanism includes the lead screw and sets up in the dog at lead screw both ends, still be provided with the turning block on the lead screw, adjust the stroke of dog through rotating the turning block, make two dogs be close to each other or keep away from each other, when adjusting two dogs and keep away from each other to the stopper of dying, the dog can support the stopper with the constant force, thereby improve the spacing reliability of stopper, nevertheless because the size of box differs, all need carry out the regulation of stroke to the dog when consequently loading, the stroke of adjusting the dog at present mainly is twisted or is adjusted according to the hand, when twisted or twisted the turning block when the hand, because the assurance of dynamics is inconsistent, consequently can have the condition that the moment of torsion is too big or the undersize, when the moment of torsion is too big, the dog can push the stopper and push the diaphragm in the extrusion box, lead to the damage of diaphragm, when the moment of torsion is too little, the stopper is not hard up in the long-time not hard up, the transportation probably not hard up.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved in the present invention is to overcome the problem of low reliability of stroke adjustment of the stop block in the prior art, and therefore, it is necessary to provide a highly reliable torque wrench.

In order to solve the technical problem, the utility model provides a torque wrench, include:

the clamping seat is provided with a clamping jaw at one end, and a first limiting groove is formed in the clamping seat;

the joint sleeve is connected with the clamping seat, and a plurality of grooves are formed in the inner side of the joint sleeve in a radial direction in an annular mode;

the ball is movably arranged in the joint sleeve, a plurality of first convex blocks matched with the grooves are annularly arranged on the ball along the radial direction of the joint sleeve, and a second convex block is arranged on the ball along the axial direction of the joint sleeve;

the adjusting mechanism comprises a rotating sleeve, the rotating sleeve is sleeved outside the joint sleeve, one end of the rotating sleeve extends into the clamping seat, a second limiting groove matched with the first limiting groove is formed in the rotating sleeve, a through hole matched with the second lug is formed in the rotating sleeve, the adjusting mechanism moves the rotating sleeve, the ball is driven to move by the through hole and the second lug so as to adjust the friction force between the first lug and the groove to provide torque, the first limiting groove and the second limiting groove are staggered and then support the ball to conduct torque, and the jaw on the clamping seat is driven to rotate by the joint sleeve.

In an embodiment of the present invention, the adjusting mechanism further includes:

the friction seat is clamped between the rotating sleeve and the joint sleeve, one end of the friction seat is connected with the joint sleeve in a sliding mode, and the other end of the friction seat extends out of the rotating sleeve;

the inner sleeve is sleeved outside the friction seat and is connected with the rotating sleeve;

the outer sleeve is sleeved outside the inner sleeve and is in threaded connection with the inner sleeve;

and the elastic piece is arranged in the inner sleeve, one end of the elastic piece is abutted against the outer sleeve, and the other end of the elastic piece is abutted against the friction seat.

In one embodiment of the present invention, the adjustment mechanism further comprises a spacer sandwiched between the end of the inner sleeve and the end of the outer sleeve.

In an embodiment of the present invention, the rotating sleeve is provided with an alarm component, the inner side of the rotating sleeve is provided with a first elastic sheet, the outer side of the joint sleeve is provided with a second elastic sheet, and the alarm component alarms when the first elastic sheet abuts against the second elastic sheet.

In an embodiment of the present invention, an end of the outer sleeve away from the friction seat is marked with a torque scale indicating line.

In an embodiment of the present invention, the friction seat is T-shaped.

In an embodiment of the present invention, the groove and the first bump are arranged in an array.

In an embodiment of the present invention, the joint sleeve is connected to the clamping seat through a screw.

In an embodiment of the present invention, a placing slot is disposed on the card seat, and is used for placing a power supply.

In an embodiment of the present invention, the alarm component includes a buzzer and an indicator light.

Compared with the prior art, the technical scheme of the utility model have following advantage:

the utility model discloses an inlay the second lug with the ball in locating rotatory sleeve's through-hole, adjustment mechanism is through removing rotatory sleeve, utilize through-hole and second lug to make the ball remove, because the ball activity sets up in joint sleeve, joint sleeve rigidity, the ball removes and makes recess contact extrusion on first lug and the joint sleeve produce frictional force and provide invariable moment of torsion, and can predetermine required torque value according to actual need, support ball conduction moment of torsion after first spacing groove and the second spacing groove are crisscross, at last drive the jack catch on the cassette through rotating joint sleeve and rotate, and then drive the turning block and rotate, adjust the stroke of dog, the constant torque output has been realized, the harmful effects that the too big undersize of moment of torsion produced have been avoided, the reliability of dog stroke control has been improved greatly.

Drawings

In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which

FIG. 1 is a schematic cross-sectional view of a torque wrench in a preferred embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of the torque wrench of fig. 1 at another angle.

Description reference numbers indicate: 1. a card holder; 2. a joint sleeve; 3. a ball bearing; 4. an adjustment mechanism; 5. an alarm component; 6. a power source; 11. a claw; 12. a first limit groove; 13. a placement groove; 21. a groove; 22. a second elastic sheet; 31. a first bump; 32. a second bump; 41. rotating the sleeve; 42. a friction seat; 43. an inner sleeve; 44. an outer sleeve; 45. an elastic member; 46. a cushion block; 51. a buzzer; 52. an indicator light; 411. a second limit groove; 412. a through hole; 413. a first spring plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.

The utility model discloses an embodiment that torque wrench is preferred.

Referring to fig. 1, a torque wrench includes:

the clamping seat 1 is provided with a clamping jaw 11 for clamping a rotating block, the clamping jaw 11 is matched with the adjusted rotating block in shape, so that torque is applied to drive the rotating block to rotate through rotating the clamping jaw 11, and the clamping seat 1 is provided with a first limiting groove 12.

Joint sleeve 2, joint sleeve 2 and cassette 1 pass through threaded connection, can be according to actual need jack catch 11's size, change jack catch 11 through changing cassette 1 for this torque wrench is applicable to more application scenarios, and the inboard of joint sleeve 2 is provided with a plurality of recesses 21 along radial array.

Ball 3, ball 3 activity sets up in joint sleeve 2, the radial array along joint sleeve 2 is provided with a plurality of first lugs 31 with recess 21 adaptation on the ball 3, the axial along joint sleeve 2 is provided with second lug 32 on the ball 3, when removing ball 3, because joint sleeve 2 is fixed in and maintains motionless on the cassette 1, first lug 31 on the ball 3 can produce frictional force in order to provide invariable moment of torsion with the recess 21 contact extrusion on the joint sleeve 2, and can predetermine required torque value according to actual need, the universality of torque wrench has been improved.

The adjusting mechanism 4, the adjusting mechanism 4 includes a rotating sleeve 41, the rotating sleeve 41 is sleeved outside the joint sleeve 2, and one end of the rotating sleeve 41 extends into the card seat 1, a second limiting groove 411 matched with the first limiting groove 12 is arranged on the rotating sleeve 41, a through hole 412 matched with the second bump 32 is arranged on the rotating sleeve 41, and the second bump 32 is embedded in the through hole 412, when the joint sleeve 2 moves, the ball 3 is driven to move under the action of the through hole 412 and the first bump 31, so as to adjust the friction force between the first bump 31 and the groove 21 to provide the torque, at this moment, because the rotating sleeve 41 moves upwards, the first limiting groove 12 on the card seat 1 and the second limiting groove 411 on the rotating sleeve 41 can be staggered, the torque is transmitted by supporting the ball 3 through the crossed intersection point, and finally, the jaw 11 on the card seat 1 is driven to rotate by rotating the joint sleeve 2, the jaw 11 is rotated by a constant torque, thereby realizing the rotation of the jaw 11 by a constant torque, avoiding adverse effect caused by an excessively large torque, and greatly improving the reliability of the adjustment of the stroke of the dog.

Specifically, the adjusting mechanism 4 further includes a friction seat 42, an inner sleeve 43, an outer sleeve 44 and an elastic element 45, the friction seat 42 is T-shaped, the friction seat 42 is clamped between the rotating sleeve 41 and the joint sleeve 2, one end of the friction seat 42 is slidably connected with the joint sleeve 2, the other end of the friction seat extends out of the rotating sleeve 41, the inner sleeve 43 is sleeved outside the friction seat 42 and is fixedly connected with the rotating sleeve 41, the outer sleeve 44 is sleeved outside the inner sleeve 43 and is in threaded connection with the inner sleeve 43, the elastic element 45 is arranged in the inner sleeve 43, one end of the elastic element 45 is abutted against the outer sleeve 44, the other end is abutted against the friction seat 42, when in use, torque can be applied downwards to rotate the outer sleeve 44 downwards to extrude the elastic element 45 in the inner sleeve 43, the elastic element 45 generates a restoring force to act downwards on the friction seat 42 after being subjected to extrusion force, because the friction seat 42 is connected with the fixed joint sleeve 2 and can not move, the elastic piece 45 conducts the acting force reversely upwards, so that the rotating sleeve 41 moves upwards, and further the ball 3 is driven to move upwards through the action of the through hole 412 and the second bump 32, so that the first bump 31 on the ball 3 is in contact with and extrudes the groove 21 on the joint sleeve 2 to generate friction force to provide constant torque, at the moment, because the rotating sleeve 41 moves upwards, the first limit groove 12 on the clamping seat 1 and the second limit groove 411 on the rotating sleeve 41 can be staggered, the intersection point generated after the staggering is utilized to support the ball 3 to conduct torque, and finally the jaw 11 on the clamping seat 1 is driven to rotate through rotating the joint sleeve 2, so that the rotating block is driven to rotate, and the stroke of the jaw is adjusted.

Specifically, the adjusting mechanism 4 further includes a cushion block 46, the cushion block 46 is clamped between an end portion of the inner sleeve 43 and an end portion of the outer sleeve 44, a diameter of the cushion block 46 is smaller than a diameter of the inner sleeve 43, the outer sleeve 44 extrudes the elastic member 45 in the inner sleeve 43 through the extrusion cushion block 46, so that the elastic member 45 is uniformly stressed, and accuracy of a preset torque value is further ensured, in addition, a torque scale indicating line is marked at one end, far away from the friction seat 42, of the outer sleeve 44, and an operator can clearly determine a size of the preset torque value.

Specifically, the alarm component 5 is arranged on the rotating sleeve 41, the alarm component 5 comprises a buzzer 51 and an indicator lamp 52, a first elastic sheet 413 is arranged on the inner side of the rotating sleeve 41, a second elastic sheet 22 is arranged on the outer side of the joint sleeve 2, a placing groove 13 for placing a power supply 6 is arranged on the clamping seat 1, the power supply 6 is electrically connected with the first elastic sheet 413 and the second elastic sheet 22 respectively, after a torque wrench with a set torque blocks a turning block through a clamping jaw 11, the torque wrench starts to rotate, when a torque value required by turning the turning block is greater than a preset torque value, friction force generated between a first lug 31 on a ball 3 and a groove 21 on the joint sleeve 2 cannot support the wrench to continue rotating so as to generate torque slip, at the moment, the rotating sleeve 41 can incline by a certain angle relative to the clamping seat 1, so that the first elastic sheet 413 on the rotating sleeve 41 and the second elastic sheet 22 on the joint sleeve 2 are abutted against each other, a loop is formed by power supplied by the power supply 6, the trigger 51 and the indicator lamp 52 give an alarm, closed-loop control is realized, and accurate control of the torque is realized.

Specifically, when the wrench is used, firstly, a torque can be applied downwards to downwardly rotate the outer sleeve 44 to extrude the elastic member 45 in the inner sleeve 43, the elastic member 45 generates a restoring acting force to downwardly act on the friction seat 42 after receiving an extrusion force, the friction seat 42 is connected with the fixed joint sleeve 2 and cannot move, the elastic member 45 conducts the acting force reversely and upwardly, so that the rotating sleeve 41 moves upwardly, further the ball 3 is driven to move upwardly through the action of the through hole 412 and the second bump 32, so that the first bump 31 on the ball 3 and the groove 21 on the joint sleeve 2 are contacted and extruded to generate a friction force to provide a constant torque, a preset torque value is obtained, at this time, as the rotating sleeve 41 moves upwardly, the first limit groove 12 on the chuck 1 and the second limit groove 411 on the rotating sleeve 41 are staggered, the ball 3 is supported by using a crossing point generated after the staggering, finally, the jaw 11 on the chuck 1 is driven to rotate by rotating the joint sleeve 2, the rotating block is driven to rotate, a stroke of the stopper is adjusted, when the torque value required by the rotating block is greater than the preset torque value, the torque bump 31 on the joint sleeve 3 and the torque groove 21 on the chuck 2, a torque indicator socket 21 on the wrench is abutted against the rotating sleeve 41, a certain angle, a buzzer 52 is triggered, and a certain angle is generated, so that the torque indicator lamp 22 and a certain angle of the rotating sleeve 41 and a buzzer 52 is generated by the rotating sleeve 2, and a certain angle indicator can be abutted against the rotating lamp, and a buzzer 52, and a certain angle indicator.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims

1. A torque wrench, comprising:

a clamping base, wherein one end of the clamping base is provided with a clamping jaw, and a first limiting groove is formed in the clamping base;

the adjusting mechanism comprises a rotating sleeve, the rotating sleeve is sleeved outside the joint sleeve, one end of the rotating sleeve extends into the clamping seat, a second limiting groove matched with the first limiting groove is formed in the rotating sleeve, a through hole matched with the second lug is formed in the rotating sleeve, the adjusting mechanism drives the ball to move by moving the rotating sleeve and utilizing the through hole and the second lug to adjust the friction force between the first lug and the groove so as to provide torque, the first limiting groove and the second limiting groove are staggered and then support the ball to conduct torque, and the joint sleeve drives the clamping jaw on the clamping seat to rotate.

2. The torque wrench of claim 1, wherein the adjustment mechanism further comprises:

3. The torque wrench of claim 2, wherein the adjustment mechanism further includes a spacer block interposed between an end of the inner sleeve and an end of the outer sleeve.

4. The torque wrench according to claim 1, wherein the rotating sleeve is provided with an alarm assembly, the inner side of the rotating sleeve is provided with a first elastic sheet, the outer side of the joint sleeve is provided with a second elastic sheet, and the alarm assembly gives an alarm when the first elastic sheet abuts against the second elastic sheet.

5. The torque wrench according to claim 2, wherein an end of the outer sleeve remote from the friction seat is marked with a torque scale indicator.

6. The torque wrench according to claim 2, wherein the friction seat is T-shaped.

7. The torque wrench of claim 1, wherein the recess and the first protrusion are arranged in an array.

8. The torque wrench according to claim 1, wherein the socket is threadedly coupled to the socket.

9. The torque wrench according to claim 1, wherein the socket is provided with a placement slot for placing a power source.

10. The torque wrench of claim 4, wherein the alarm assembly includes a buzzer and an indicator light.