TWI660819B - Torque wrench - Google Patents

Abstract

The invention relates to a torque wrench, which comprises a body, a torque adjusting member, a locking member and an adjusting assembly. The main body defines an axial direction, and one end of the main body is provided with a driving part, and a torque setting value is adjusted by rotating the torque adjusting member. The locking member is non-rotatably disposed in the body and is provided with a first locking portion. The adjusting assembly includes a rotating member, a pressing member, and a positioning member. The rotating member is rotatably provided on the other end of the body. The pressing member is non-rotatably provided on the rotating member. The pressing member can be along the axial direction. Sliding in a first position and a second position relative to the body, the positioning member is non-rotatably disposed in the rotating member and is rotatably connected to the torque adjusting member, and one of the pressing member and the positioning member is provided with a circular slide The other part is provided with a card abutting member, and the card abutting member slides in the circulating slide groove.

Description

Torque wrench

The invention relates to a torque wrench.

Press, when the general industry is still performing the locking operation, a torque wrench that can be used to set the torque value is used to avoid problems such as damage to the locked object due to over-tightening of the lock or damage to the screw teeth of the lock. There is a working part at one end of the body of the conventional torque wrench, a torque adjusting shaft is provided in the body to adjust the torque setting value, and a rotatable set is installed at the other end of the body, and the set is screwed with the torque adjusting shaft. When the kit is rotated, the torque adjustment shaft will be driven by the kit to move axially, thereby achieving the function of adjusting the torque setting value, and then the user can perform the locking operation.

However, this type of conventional torque wrench has the following disadvantages. Because the torque wrench is held in the kit to apply force when in use, when the locking operation is performed, the torque setting value is often changed by accidentally turning the handle. This will change the preset locking force during locking, which will cause the locking function of the locking fixture to decrease. Therefore, it is necessary to repeatedly perform the action of adjusting the torque value, which affects the efficiency at work and has the disadvantages of urgent improvement.

Therefore, it is necessary to provide a novel and progressive torque wrench to solve the above problems.

The main object of the present invention is to provide a torque wrench with the function of quickly locking and releasing the torque wrench to adjust a preset torque value, so as to improve work efficiency, and has a simple and durable structure.

To achieve the above object, the present invention provides a torque wrench, which includes a body, a torque adjusting member, a locking member, and an adjusting assembly. The main body defines an axial direction, and one end of the main body is provided with a driving part. When the driving part receives a torque greater than a torque setting value, an idling phenomenon will occur. The torque adjusting member is rotatably disposed in the body, and the torque setting value is adjusted by rotating the torque adjusting member. The locking member is non-rotatably disposed in the body and is provided with a first locking portion. The adjusting assembly includes a rotating member, a pressing member, and a positioning member. The rotating member is rotatably provided on the other end of the body. The pressing member is non-rotatably provided on the rotating member. The pressing member can be along the axial direction. A spring is slid between the pressing member and the positioning member relative to the main body, so that the pressing member has a tendency to move toward the first position. The pressing member is provided with a A second clamping portion, the positioning member is non-rotatably disposed in the rotating member and is rotatably connected to the torque adjusting member, one of the pressing member and the positioning member is provided with a circulating chute, and the other is provided with a snapping member The circulating chute is provided with an upper step portion and a lower step portion, and the latching member slides in the circulating chute. Wherein, when the pressing member is located in the first position, the first card portion does not rotate to interfere with the second card portion and the card abutting member is abutted against the upper step portion; when the pressing member is located in the second position , The first card portion and the second card portion rotate to interfere with each other and the card abutting member abuts against the lower step portion.

1‧‧‧ Ontology

2‧‧‧ adjustment components

42‧‧‧plate

51‧‧‧ long slot

3‧‧‧rotating parts

4‧‧‧Press pieces

5‧‧‧ Positioning piece

6‧‧‧Circular chute

11‧‧‧ axial

12‧‧‧Driver

13‧‧‧Torque adjustment

14‧‧‧Lock

15‧‧‧spring

141‧‧‧The first card department

21‧‧‧Card Arrival

22‧‧‧Fan Slot

41‧‧‧Second Card Department

61‧‧‧Upper Department

62‧‧‧The first arc guide groove

63‧‧‧The first limit slot

64‧‧‧ Lower Stage

65‧‧‧Second limit slot

66‧‧‧Second arc guide groove

67‧‧‧ bump

68‧‧‧ Block

671‧‧‧first inclined guide surface

672‧‧‧Second Inclined Guide

673‧‧‧peak

681‧‧‧ third inclined guide surface

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

FIG. 2 is an exploded view of a preferred embodiment of the present invention.

FIG. 3 is a partial perspective view of a preferred embodiment of the present invention.

FIG. 4 is a motion trajectory diagram of a circulating chute according to a preferred embodiment of the present invention.

5 to 8 are operation diagrams of the latching member and the circulating chute according to a preferred embodiment of the present invention.

The following only illustrates the possible implementation aspects of the present invention by way of examples, but is not intended to limit the scope of the present invention to be protected, which will be described first.

Please refer to FIGS. 1 to 8, which show a preferred embodiment of the present invention. The torque wrench of the present invention includes a body 1, a torque adjusting member 13, a locking member 14, and an adjusting assembly 2.

The main body 1 defines an axial direction 11, and one end of the main body 1 is provided with a driving part 12 for connecting with a sleeve or a locking member. When the driving part 12 receives a torque greater than a torque setting value, Idling will occur.

The torque adjusting member 13 is rotatably disposed in the body 1, and the torque setting value is adjusted by rotating the torque adjusting member 13.

The locking member 14 is non-rotatably disposed in the body 1 and has a first locking portion 141.

The adjusting assembly 2 includes a rotating member 3, a pressing member 4, and a positioning member 5. The rotating member 3 is rotatably provided on the other end of the body 1. The pressing member 4 is non-rotatably provided on the rotating member 3. The pressing member 4 can be slid in a first position and a second position relative to the main body 1 along the axial direction 11. In this embodiment, the first position is away from one side of the driving portion 12, and the second position is Adjacent to one side of the driving portion 12, a spring 15 springs between the pressing member 4 and the positioning member 5, so that the pressing member 4 has a tendency to move toward the first position (that is, away from the driving portion 12 direction movement), the pressing member 4 is provided with a second clamping portion 41, and the positioning member 5 is non-rotatably disposed in the rotating member 3 and is rotatably connected to the torque adjusting member 13. In this embodiment, the rotating member The inner peripheral wall of 3 is a non-circular hole wall. The rotating member 3 is sleeved on the pressing member 4 and the positioning member 5 in a non-rotatable manner. One of the pressing member 4 and the positioning member 5 is provided with a circulating chute 6. , The other is provided with a latching member 21, the circulating chute 6 is provided with an upper step portion 61 and a lower step portion 64, and the latching member 21 slides on the 6 the chute ring.

Wherein, when the pressing member 4 is located in the first position (as shown in FIG. 5), the first latching portion 141 does not interfere with the second latching portion 41 and the latching portion 21 latches against the upper portion. 61. The rotating member 3 can be rotated relative to the main body 1 to adjust the torque setting value. When the pressing member 4 is located in the second position (as shown in FIG. 6), the first clamping portion 141 and the The second latching portion 41 interferes with the rotation and the latching member 21 latches against the lower step portion 64. The pivoting member 3 cannot rotate relative to the main body 1, that is, the locking effect is achieved, so as to prevent the torque adjusting member 13 from rotating and causing the The torque setting is changed.

Specifically, the pressing member 4 is provided along the axial direction 11 with a plate 42, and the plate 42 is provided with the second clamping portion 41 at one end of the pressing member 4. One of the plate members 42 is concavely provided with the circulation chute 6, one end of the latching member 21 is disposed on the positioning member 5, and the other end of the latching member 21 abuts against the circulation chute 6.

Further, in this embodiment, the latching member 21 is a zigzag rod member with elastic recovery, and the plate member 42 is recessed with a fan-shaped groove 22, and the fan-shaped groove 22 faces the circulation slide 6. The direction of the card is gradually expanded, and the card-receiving member 21 is accommodated in the groove of the fan-shaped groove 22, so that the card-receiving member 21 can perform bending and swinging in the fan-shaped groove 22.

In this embodiment, the locking member 14 is fixed to the body 1 and sleeved on the torque adjusting member 13. The positioning member 5 is provided with a long groove 51 recessed on one side in the radial direction, and the long groove 51 faces the axial direction 11. Extending, the plate 42 is slid in the long groove 51. When the pressing member 4 is located in the second position, the plate 42 exceeds the long groove 51 and the second card portion 41 abuts against the first card portion 141. The first latching portion 141 is a plurality of recessed holes arranged in a ring shape, and the second latching portion 41 is at least one insert. The at least one insert can be selectively inserted into a recess to enable the locking member 14 and the pressing member to be pressed. The piece 4 cannot rotate relative to each other.

For example, as shown in FIG. 4, in this embodiment, the circulating chute 6 is provided with the upper step portion 61, a first arc guide groove 62, a first limiting groove 63, and the lower step portion in this order. 64. A second limiting groove 65 and a second arc-guiding groove 66. The above structure forms a closed loop loop. In addition, the lower step portion 64 faces the first limiting groove 63 and the second limiting groove 65. When the user presses the pressing member 4 in the direction of the driving portion 12, the circulation chute 6 and the latching member 21 slide relative to each other, and the latching member 21 abuts against one end of the circulation chute 6. The upper step portion 61 (shown in FIG. 5), the first limit slot 63 (shown in FIG. 6), the lower step portion 64 (shown in FIG. 7), and the second limit position can be sequentially performed. The groove 65 (shown in FIG. 8) slides, and since the spring 15 normally pushes the pressing member 4 in the first direction, the locking member 21 can only be pressed against the spring when it is not pressed by external force. The upper step portion 61 (that is, located at the first position) or the lower step portion 64 (that is, located at the second position). Therefore, the user only needs to repeatedly press the pressing member 4 and switch the pressing member 4 to the first position and the second position to lock or release the rotation of the rotating member 3 relative to the main body 1 to achieve fast switching. Its function.

Preferably, the circulation chute 6 is provided with a bump 67, and the lower portion 64 is provided on one side away from the upper portion 61, and the convex portion 67 is provided on one side facing the upper portion 61. There is a first inclined guide surface 671 and a second inclined guide surface 672. The first inclined guide surface 671 and the second inclined guide surface 672 form a peak 673, which is adjacent to the second arc guide groove 66. The first inclined guide surface 671 corresponds to the upper step portion 61 along the axial direction 11 to prevent the latching member 21 from moving backward against the one end of the circulating chute 6 (that is, sliding opposite to FIG. 4). Track). In addition, a blocking portion 68 is protruded between the first limiting slot 63 and the second limiting slot 65. The blocking portion 68 is provided with a third inclined guide surface 681, and the third inclined guide surface 681 faces the second limit. The slot 65 is inclined, and the third inclined guide surface 681 corresponds to the lower step portion 64 in the direction of the axial direction 11. Similarly, the latching member 21 can be prevented from moving backward against the one end of the circulating slide 6.

In summary, in the torque wrench of the present invention, the user only needs to repeatedly press the pressing member, and switch the pressing member to the first position and the second position for the purpose of locking or releasing the rotation of the rotating member relative to the body, In order to achieve the function of fast switching.

Claims (11)

A torque wrench includes: a body defining an axial direction; a driving portion is provided at one end of the body; when the driving portion receives a torque greater than a torque setting value, an idling phenomenon occurs; a torque adjusting member is rotatably provided Within the body, the torque setting value is adjusted by turning the torque adjusting member; a lock member is non-rotatably disposed in the body, and is provided with a first clamping portion; an adjusting assembly includes a rotating member, a pressing member And a positioning member, the rotating member is rotatably provided on the other end of the body, the pressing member is non-rotatably provided on the rotating member, and the pressing member can slide in a first position relative to the body along the axial direction and In a second position, a spring is springed between the pressing member and the positioning member, so that the pressing member has a tendency to move toward the first position. The pressing member is provided with a second clamping portion, and the positioning member is not rotatable. It is grounded in the rotating member and is rotatably connected with the torque adjusting member. One of the pressing member and the positioning member is provided with a circulating chute, and the other is provided with a snapping member. The circulating chute is provided with an upper step. With The card holder slides in the circulation chute; when the pressing member is in the first position, the first card portion does not interfere with the rotation of the second card portion and the card holder abuts against the An upper step portion; when the pressing member is located at the second position, the first card portion and the second card portion rotate to interfere with each other and the card abutting member abuts against the lower step portion. The torque wrench according to claim 1, wherein the pressing member is provided with a plate extending along the axial direction, and the second clamping portion is provided at one end of the plate facing the positioning member. The torque wrench according to claim 2, wherein one side of the plate is concavely provided with the circulating chute, one end of the card abutting member is provided on the positioning member, and the other end of the card abutting member abuts against the circulating slide. groove. The torque wrench according to claim 3, wherein the abutting member is a zigzag-shaped rod with elastic recovery, and the plate is recessed with a fan-shaped groove, and the fan-shaped groove gradually moves in the direction of the circulating slide groove. The card abutment is accommodated in the fan-shaped groove. The torque wrench according to claim 4, wherein the locking member is fixed to the body and sleeved on the torque adjusting member, and one of the positioning members is concavely provided with a long groove on one side in the radial direction, and the long groove extends toward the axial direction. The plate is slidably disposed in the long slot, and when the pressing member is located in the second position, the plate extends beyond the long slot and the second card portion is abutted against the first card portion. The torque wrench according to claim 5, wherein the first clamping portion is a plurality of recessed holes arranged in a ring shape, the second clamping portion is at least one insert, and the at least one insert can be selectively inserted into one recess. The torque wrench according to claim 1, wherein the circulating chute is sequentially provided with the upper step portion, a first arc guide groove, a first limiting groove, the lower step portion, and a second limiting groove. A second arc-guiding groove, the above structure forms a closed loop loop. The torque wrench according to claim 7, wherein the circulating chute is provided with a protrusion, the protrusion is provided on a side away from the upper stage, and the protrusion is provided on a side facing the upper stage. There is a first inclined guide surface and a second inclined guide surface. The first inclined guide surface and the second inclined guide surface form a peak top, the peak top is adjacent to the second arc guide groove, and the first inclined guide surface. Corresponding to the upper step portion in the axial direction. The torque wrench according to claim 7, wherein the lower step portion faces the first limiting groove and the second limiting groove. The torque wrench according to claim 9, wherein a stop portion is convexly protruded between the first limit slot and the second limit slot, the stop portion is provided with a third inclined guide surface, and the third inclined guide surface faces The second limiting groove is inclined, and the third inclined guide surface corresponds to the lower step portion along the axial direction. The torque wrench according to claim 1, wherein the inner peripheral wall of the rotating member is a non-circular hole wall, and the rotating member is sleeved on the pressing member and the positioning member in a non-rotatable manner.