TWI741642B - Torque wrench - Google Patents

Abstract

A torque wrench includes a main body, a driving portion, a positioning member, a torque adjusting assembly, a rotating member, an adjusting member and an abutting assembly. The main body defines an axial direction. The driving portion is disposed on one end of the main body. The positioning member is fixedly arranged in the main body. The rotating member is rotatably assembled with the torque adjusting assembly. The adjusting member is axially screwed to the rotating member. The abutting assembly includes a first abutting portion and a second abutting portion. The first abutting portion is disposed on the positioning member. The second abutting portion is axially movable relative to the rotating member to be in a first position or a second position.

Description

Torque wrench

The invention relates to a torque wrench.

Press, the general torque wrench is usually available for setting the torque value, so that it can be selected according to the assembly and disassembly process of various components, and the appropriate torque setting value is selected. The body of the conventional torque wrench has a driving head at one end, and the body of the torque wrench The other end is equipped with a central push rod to adjust the torque setting value, and an adjustable rotating part is installed at this end. When the rotating part is rotated, the central push rod will be driven by the rotating part to move axially, thereby achieving the adjustment of the torque The torque setting value of the wrench can then be locked by the user. The patent described in Patent No. TWM540019 belongs to this category. In order to avoid arbitrary rotation of the rotating part, the rotating part can slide along the axial direction to a locked position and a locking position. Release position. When in the locked position, the teeth of the rotating member and the teeth of the main body are engaged, and the rotating member cannot be rotated. If you want to adjust the torque value, you must first move the rotating member to the released position to make the rotation Only when the teeth of the piece and the teeth of the body do not engage with each other, the rotating piece can be rotated.

However, after the conventional torque wrench is used for a period of time, the rotating part is easy to loosen and cause any sliding relative to the body. Therefore, during the process of using the torque wrench, the rotating part is easy to move to the release position accidentally, resulting in the torque wrench The torque setting value changes, causing errors in the operation, and there are shortcomings that need to be improved urgently.

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

The main purpose of the present invention is to provide a torque wrench with an adjusting member that locks or releases the rotation of the rotating member by screwing, so that it can be ensured that the adjusting member will not arbitrarily release the rotation of the rotating member. Rotate to avoid errors in operation.

In order to achieve the above object, the present invention provides a torque wrench, which includes a body, a driving part, a positioning member, a torque adjusting component, a rotating component, an adjusting component, and a snapping component. The body defines an axis. The driving part is arranged at one end of the main body, and an idling phenomenon occurs when the driving part receives a torque greater than a torque setting value. The positioning member is fixed in the body. The torque adjusting component can move along the axial direction to adjust the torque setting value. The rotating member can be rotatably assembled with the torque adjustment assembly relative to the main body to drive the torque adjustment assembly to move along the axial direction. The adjusting piece is screwed on the rotating piece along the axial direction. The engaging component includes a first engaging portion and a second engaging portion. The first engaging portion is provided on the positioning member, and the second engaging portion is provided on the rotating member and is capable of moving along the rotating member relative to the rotating member. Sliding axially between a first position and a second position. Wherein, when the second engaging portion is located at the first position, the second engaging portion does not engage with the first engaging portion; the second engaging portion can be driven to move by screwing the adjusting member To the second position, the second engaging portion is engaged with the first engaging portion.

The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

Please refer to Figures 1 to 6, which show a preferred embodiment of the present invention. The torque wrench of the present invention includes a body 1, a driving portion 2, a positioning member 3, a torque adjusting component 4, a rotating member 5, and a Adjusting part 6 and a snapping component 7.

The body 1 defines an axis 11.

The driving part 2 is arranged at one end of the main body 1, and an idling phenomenon occurs when the driving part 2 receives a torque greater than a torque setting value.

The positioning member 3 is fixed in the main body 1. In this embodiment, a pin member radially penetrates the main body 1 and is inserted into the positioning member 3 to fix the positioning member 3 to the main body 1.

The torque adjusting component 4 can move along the axial direction 11 to adjust the torque setting value.

The rotating member 5 is rotatably assembled to the torque adjustment assembly 4 relative to the main body 1 to drive the torque adjustment assembly 4 to move along the axial direction 11.

The adjusting member 6 is screwed on the rotating member 5 along the axial direction 11.

The engaging component 7 includes a first engaging portion 71 and a second engaging portion 72. The first engaging portion 71 is provided on the positioning member 3, and the second engaging portion 72 is provided on the rotating member 5 and The rotating member 5 can be slid between a first position and a second position along the axial direction 11 relative to the rotating member 5.

Wherein, when the second engaging portion 72 is located at the first position, the second engaging portion 72 does not engage with the first engaging portion 71, and the rotating member 5 can be arbitrarily rotated to drive the torque adjustment assembly 4 Move along the axial direction 11 to adjust the torque setting value; by screwing the adjusting member 6 to drive the second engaging portion 72 to move to the second position, the second engaging portion 72 and the first When a locking portion 71 is locked, the rotating member 5 is locked and cannot rotate relative to the main body 1 and cannot drive the torque adjusting assembly 4 to move along the axial direction 11, that is, the torque setting value cannot be adjusted. Therefore, in the present invention, the adjusting member 6 is screwed to lock or release the rotation of the rotating member 5. Therefore, it can ensure that the adjusting member 6 moves freely so that the second engaging portion 72 does not interact with the first engaging portion 72. The abutment portion 71 is locked to ensure that the rotation of the rotating member 5 will not be arbitrarily released, so as to avoid the arbitrary change of the torque setting value and cause the error in the locking operation.

Specifically, one of the first engaging portion 71 and the second engaging portion 72 includes at least one pin 721, and the other includes at least one insertion hole 711. When the second engaging portion 72 is located at the first Position, each of the pins 721 is not inserted into a socket 711, the rotating member 5 can rotate relative to the main body 1; when the second engaging portion 72 moves to the second position, each of the pins 721 is inserted In one of the insertion holes 711, the rotating member 5 cannot rotate relative to the main body 1.

In this embodiment, the first engaging portion 71 includes the at least one insertion hole 711 provided on the positioning member 3, and the positioning member 3 has a plurality of recesses arranged at intervals along the circumferential direction on the end surface of the positioning member 3 facing the rotating member 5. Jack 711. The second engaging portion 72 includes the at least one pin 721, the rotating member 5 includes a bottom wall 51, the bottom wall 51 is non-rotatably sleeved on the torque adjustment assembly 4, and the bottom wall 51 is along the axial direction 11 At least one pin hole 52 is penetrated, and the at least one pin 721 is slidably penetrated through the at least one pin hole 52. In this embodiment, the number of the at least one pin 721 and the number of the at least one pin hole 52 is two respectively, which can have a strong structural strength to lock the rotating member 5 from rotating relative to the main body 1. It should be noted that, in other embodiments, the at least one pin 721 is provided on the positioning member 3, and the insertion holes 711 are slidably provided on the rotating member 5, and it is not limited thereto.

Furthermore, the torque adjusting assembly 4 includes an abutting member 41 and a spindle 42. The spindle 42 is rotatably disposed on the body 1 around the axial direction 11 and is screwed to the abutting member 41. The abutting member 41 41 is non-rotatably slidably disposed on the main body 1, the mandrel 42 is further penetrated through the positioning member 3, and the rotating member 5 is non-rotatably sleeved on the mandrel 42. Preferably, the bottom wall 51 is provided with a non-circular hole 53 along the axial direction 11, the non-circular hole 53 is non-rotatably sleeved on the mandrel 42, and a locking member 54 is locked to the shaft along the axial direction 11 The bottom wall 51 and one end of the mandrel 42 prevent the rotating member 5 from separating from the mandrel 42. When the rotating member 5 rotates, the mandrel 42 is driven to rotate, and the mandrel 42 drives the abutting member 41 along the Slide the axis 11 to change the torque setting. In this embodiment, the driving portion 2 includes an elastic member 21, the abutting member 41 springs against the second elastic member 21, the abutting member 41 includes a blocking wall 411, and the spindle 42 is screwed to the blocking member. A wall 411, the blocking wall 411 abuts the elastic member 21, and the compression degree of the abutment member 41 abuts the elastic member 21 to change the magnitude of the torque setting value.

Furthermore, the peripheral edge of the bottom wall 51 of the rotating member 5 is protrudingly provided with a ring wall 55 in a direction away from the positioning member 3. The ring wall 55 defines a chamber 56 into which the two bolts 721 extend In 56, the adjusting member 6 abuts against an end of the two pins 721 away from the positioning member 3 along the axial direction 11.

In addition, the ring wall 55 of the rotating member 5 is further assembled with a connecting member 81, and the adjusting member 6 is screwed on the connecting member 81. The adjusting member 6 is provided with a head 61 at one end away from the positioning member 3. 6 Toward one end of the positioning member 3, a pushing member 62 is fixedly provided. The pushing member 62 is located in the chamber 56 and abuts against the two plug pins 721 along the axial direction 11 so as to stack the plug pin 721 relative to the main body. 1 moves along the axial direction 11. In this embodiment, the pushing member 62 is in the shape of a disc so as to have a sufficient radial dimension to abut against the two bolts 721.

In addition, preferably, the head 61 is non-rotatably sheathed with a non-circular torsion member 82, and the connecting member 81 is located between the rotating member 5 and the torsion member 82. In this embodiment, the torsion member 82 The outer peripheral wall is an equiangular polygon, and the torsion member 82 can be conveniently held and rotated by the user to quickly adjust the second engaging portion 72 to switch between the first position and the second position.

In this embodiment, the rotating member 5 is screwed with a cylindrical grip 83 toward one end of the driving portion 2 to facilitate the user to hold and perform the locking operation. The connecting member 81 is screwed to the rotating member. 5. To facilitate assembly.

In summary, the torque wrench of the present invention locks or releases the rotation of the rotating member by screwing the adjusting member, so it can ensure that the adjusting member moves freely so that the second engaging portion does not interact with the first engaging portion. The abutting parts are locked together to ensure that the rotation of the rotating part will not be arbitrarily released, so as to avoid any change of the torque setting value and cause errors in the locking operation.

1: body

11: Axial

2: drive part

21: Elastic parts

3: positioning parts

4: Torque adjustment component

41: top piece

42: Mandrel

411: Block Wall

5: Rotating parts

51: bottom wall

52: pin hole

53: non-circular hole

54: lock firmware

55: Ring Wall

56: Room

6: Adjusting parts

61: head

62: Push the piece

7: Card to the component

71: The first card arrives

72: The second card arrives

711: jack

721: bolt

81: connecting piece

82: twist

83: Grip

Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is an exploded view of a preferred embodiment of the present invention. Figure 3 is a partial perspective view of a preferred embodiment of the present invention. Fig. 4 is a partial side sectional view of a preferred embodiment of the present invention. 5 and 6 are schematic diagrams of the partial enlarged operation of FIG. 4.

1: body

21: Elastic parts

3: positioning parts

4: Torque adjustment component

41: top piece

411: Block Wall

42: Mandrel

5: Rotating parts

51: bottom wall

55: Ring Wall

56: Room

6: Adjusting parts

62: Push the piece

7: Card to the component

721: bolt

Claims (8)

A torque wrench includes: a body defining an axial direction; a driving part arranged at one end of the body; when the driving part receives a torque greater than a torque setting value, idling will occur; and a positioning part fixed at The body; a torque adjustment component that can move along the axial direction to adjust the torque setting value; a rotating piece that can be rotatably assembled with the torque adjustment component relative to the body to drive the torque adjustment component along the axial direction Move; an adjusting member screwed on the rotating member along the axial direction; and a snapping component, including a first snapping portion and a second snapping portion, the first snapping portion is provided on the positioning member, The second abutting portion is disposed on the rotating member and can slide between a first position and a second position along the axial direction relative to the rotating member; wherein, when the second abutting portion is located at the first position , The second engaging portion does not engage with the first engaging portion; by screwing the adjusting member, the second engaging portion can be driven to move to the second position, and the second engaging portion is in contact with the The first abutting part is locked and pressed; wherein the torque adjusting assembly includes a abutting piece and a spindle, and the spindle is rotatably arranged on the body around the axial direction and is screwed with the abutting piece, the abutting The part is non-rotatably slidable on the body, the mandrel is pierced through the positioning part, the rotating part is non-rotatably sleeved on the mandrel; the bottom wall is provided with a non-circular hole along the axial direction, the non-circular hole The circular hole is non-rotatably sleeved on the mandrel, and a locking member is locked on the bottom wall and one end of the mandrel along the axial direction. The torque wrench according to claim 1, wherein one of the first engaging portion and the second engaging portion includes at least one pin, and the other includes at least one socket, and when the second engaging portion is located at the NS In one position, each of the pins is not inserted into one of the sockets; when the second engaging portion moves to the second position, each of the pins is inserted into one of the sockets. The torque wrench according to claim 2, wherein the first engaging portion includes the at least one insertion hole provided on the positioning member, the second engaging portion includes the at least one pin, and the rotating member includes a bottom wall, The bottom wall is non-rotatably sleeved on the torsion adjustment assembly, the bottom wall is provided with at least one pin hole along the axial direction, and the at least one pin is slidably penetrated through the at least one pin hole. The torque wrench according to claim 3, wherein the peripheral edge of the bottom wall of the rotating member protrudes in a direction away from the positioning member with a ring wall, the ring wall defines a chamber, and the at least one pin extends into the chamber Indoors, the adjusting member abuts against an end of the at least one plug away from the positioning member along the axial direction. The torque wrench according to claim 4, wherein the ring wall of the rotating member is further assembled with a connecting member, the adjusting member is screwed on the connecting member, and an end of the adjusting member away from the positioning member is provided with a head, the adjusting member A pushing member is fixedly arranged on one end of the positioning member toward the positioning member, and the pushing member is located in the containing chamber and abuts against the at least one pin along the axial direction. The torque wrench according to claim 5, wherein the head is non-rotatably sheathed with a non-circular torsion member, and the connecting member is located between the rotating member and the torsion member. The torque wrench according to claim 2, wherein the end surface of the positioning member facing the rotating member is recessed with a plurality of the receptacles arranged at intervals in the circumferential direction. The torque wrench according to claim 1, wherein the peripheral edge of the bottom wall of the rotating member is protruded with a ring wall in a direction away from the positioning member, the ring wall defines a chamber, and the at least one pin extends into the chamber Indoors, the adjusting member abuts against an end of the at least one pin away from the positioning member along the axial direction; the ring wall of the rotating member is further assembled with a connecting member, the adjusting member is screwed on the connecting member, and the adjusting member is far away One end of the positioning member is provided with a head, and one end of the adjustment member facing the positioning member is fixedly provided with a pushing member, the pushing member Located in the chamber and abuts against the at least one pin along the axial direction; the head is non-rotatably sheathed with a non-circular torsion member, and the connecting member is located between the rotating member and the torsion member; the positioning The end surface of the member facing the rotating member is recessed with a plurality of the insertion holes arranged at intervals in the circumferential direction; the driving portion includes an elastic member, and the abutting member springs against the second elastic member; the abutting member includes a stopper The mandrel is screwed to the retaining wall, and the retaining wall abuts against the elastic member; the pushing member is disc-shaped; the outer peripheral wall of the torsion member is an equiangular polygon; and the rotating member faces the driving part One end is screwed with a cylindrical grip, and the connecting piece is screwed on the rotating piece.

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