TWM549139U - Torque wrench structure - Google Patents

Description

Torque wrench structure

This creation is about a torque wrench, especially a torque wrench structure that avoids jamming of internal components during operation.

For example, Taiwan Patent Publication No. M463172 discloses a wrench capable of adjusting torque, which comprises a tool head having a driving portion and a fixing portion; a wrench body having a first end and a second end, and The inner portion of the wrench body is provided with an elastic linking unit, one end of which can be connected to the fixing portion; a grip having a first end and a second end, and the first end of the grip can be sleeved with the wrench body a second end; and a screw, the movement is disposed at the second end of the grip, and the screw is abutted against the other end of the elastic linking unit, and the rotating grip drives the screw to generate displacement of the elastic linkage unit, and is actuated The driving part, according to the user's operating habits, can adjust the torque value by rotating the grip.

However, when the wrench is in the locked state and the triggering drive member is executed, the structural components inside the wrench body may generate a pulling force toward the tool head direction, which may easily cause the component to be stuck, which is not conducive to subsequent Adjustment of torque action.

In order to solve the above problems, the present invention discloses a torque wrench structure which is provided with an elastic member at the end of the screw for torque feeding to provide a buffering effect to avoid the occurrence of a stuck shape caused by the pulling operation.

In order to achieve the above object, a torque wrench structure according to an embodiment of the present invention includes: a tool member having a driving portion and a fixing portion; a tube body having a first end and a second end, One end is for receiving the fixing portion; a torque adjusting elastic component is disposed in the tube body and one end is connected to the fixing portion; an adjusting grip is sleeved on the second end of the tube body, and the adjusting grip can adjust the elastic component with the torque The other end generates a clutching action to enable the adjustment grip to be able to slip or rotate along the axis of the tubular body; a screw is disposed in the adjustment grip, which can be rotated with the adjustment grip, the screw has a connection The end and the abutting end are connected to the torsion adjusting elastic component; and an elastic member has one end abutting against the abutting end and the other end abutting the adjusting grip.

Therefore, the present invention supports the elastic component and the end of the screw by the elastic member to provide a buffering effect, so that the internal component of the torque wrench does not have a pulling force toward the tool member when the torque wrench is pulled. A stuck condition of the component occurs to ensure the quality of use.

In addition, a coarse adjustment scale is arranged on one side of the pipe body, and a fine adjustment scale is provided on the adjustment grip, so that when the adjustment of the grip is adjusted, the setting of the fine adjustment scale and the coarse adjustment scale can be used to clearly define the precise torque. The standard value avoids the situation where the user applies excessive force.

The exemplified embodiments of the present invention are described in detail below with reference to the accompanying drawings, and are not intended to limit the technical principles of the present invention to the specific disclosed embodiments, and the scope of the present invention is limited only by the scope of the patent application, including alternatives, modifications, and Equivalent.

Referring to Figures 1 to 4, the torque wrench structure of the present invention includes:

A tool member 10 has a driving portion 11 and a fixing portion 12, and the driving portion 11 is a socket for socketing the sleeve member.

A tubular body 20 has a first end 21 and a second end 22, and the first end 21 extends into the receiving portion 12 of the tool member 10.

A torque adjusting elastic component 30 is disposed in the tubular body 20 and connected to the fixing portion 12 at one end. In the present embodiment, the torque adjusting elastic component 30 includes a fastener 31, three movable blocks 32, and a spring 33. , a connecting member 34 and a tuning block 35. The fastener 31 is disposed on the second end 22 of the tubular body 20, and a first limiting portion 311 is disposed on one end of the fastening member 31, and a fixing unit 312 is disposed on a side of the fastening member 31. Above the limiting portion 311, in addition, a fixing member 313 is disposed on the side of the fixing unit 312. The adjustment block 35 is disposed between any two adjacent movable blocks 32. In the present embodiment, the connecting member 34 is coupled to the fixing portion 12 of the tool member 10, and the spring 33 is disposed on the connecting member 34 and its movable portion Between blocks 32. The torsion adjusting elastic assembly 30 further includes a screw seat 36 located behind the movable block 32 farthest from the driving portion 11.

An adjustment grip 40 is sleeved on the second end 22 of the tubular body 20, and the adjustment grip 40 can be engaged with the fastener 31 of the torsion adjustment elastic assembly 30 to enable the adjustment grip 40 to be along the tubular body. The direction of the axis of 20 produces a slip or rotation. The adjustment grip 40 is hollow, and has a second limiting portion 41 that can be used for engaging the first limiting portion 311 at one end. In addition, the adjusting grip 40 has a receiving groove 42 and a receiving groove. The inner end of the 42 is provided with a limiting slot 43 that communicates with each other, and the limiting slot 43 has a hexagonal shape.

Furthermore, a first recess 44 and a second recess 45 are disposed on the outer side of the open end of the accommodating groove 42 , and a card portion 46 is further disposed corresponding to the first recess 44 . The first recess 44 and the second recess 45 can be selectively engaged with the fixing unit 312 of the fastener 31, respectively, and the latch 46 is mutually blocked with the screw stabilizer 313 of the fastener 31. When the first recess 44 of the adjustment grip 40 is engaged with the fixing unit 312, the adjustment grip 40 can be rotated relative to the tubular body 20, and when the adjustment grip 40 is advanced, the second recess 45 is engaged with the fixing unit 312. The adjustment grip 40 is in a fixed state. The aforementioned screw seat 36 is disposed in the adjustment grip 40.

A screw 50 is disposed in the receiving groove 42 of the adjusting grip 40, and is rotatable with the adjusting grip 40. The screw 50 has a connecting end 51 and a hexagonal abutting end 52, and the abutting end The recess 52 is provided with a recess 53 to which the connecting end 51 is coupled. The connecting end 51 of the screw 50 is threaded through the screw seat 36 and screwed to the screw 50, and the connecting end 51 can abut against the torsion force adjusting the movable block 32 of the elastic component 30, and the abutting end 52 can be slidably disposed on the adjusting grip. The limiting groove 43 of 40, which is a non-circular structure sliding fit, does not cause relative rotation. Therefore, when the adjustment grip 40 is in the disengaged state, the adjustment grip 40 can be rotated to drive the screw 50 to adjust the displacement of the feed to the torsion adjustment elastic assembly 30, thereby interlocking the linkage 34 of the torsion adjustment elastic assembly 30 and actuating In the driving portion 11, the urging force acts on the torsion adjusting elastic member 30, shortens the overall length thereof, changes the distance between the urging point and the operating point, and adjusts the torque value.

An elastic member 60 is disposed in the receiving groove 42 of the adjusting grip 40. The elastic member 60 is a spring. One end of the elastic member 60 abuts against the receiving hole 53 of the abutting end 52, and the other end abuts against the adjusting grip 40. Limit slot 43. The end portion of the torsion adjusting elastic member 30 can be supported by the elastic member 60 so that the torque adjusting elastic member 30 does not cause the member to lock up during work.

In addition, a fine adjustment scale 70 is attached to the second end 22 of the adjustment grip 40 adjacent to the tubular body 20. The card fastener 31 has a viewing hole 314, and the viewing hole 314 can be provided with a lens (if not), and the fine adjustment scale 70 has an upper row of scales 71 and a lower row of scales 72 for adjusting the grip 40. When sliding relative to the tubular body 20, the upper row of scales 71 or the lower row of scales 72 can be exposed by the viewing apertures 314 for direct viewing by the operator.

Further, the present invention is provided with a coarse adjustment scale 80 on the inner side of the tubular body 20. The outer side of the coarse adjustment scale 80 exposes the tubular body 20, and the inner side thereof is connected with the torsion adjustment elastic assembly 30 and adjusts the scale value as it moves. The inner side of the coarse adjustment scale 80 is locked to the adjustment block 35 of the torsion adjustment elastic assembly 30. When the torsion adjustment elastic assembly 30 is actuated and the movable block 32 is displaced, the adjustment block 35 can be moved to the coarse adjustment. Scale 80 for direct viewing by the user.

Thereby, the present invention is supported by the elastic member 60 at the end of the torsion adjusting elastic assembly 30 and the screw 50 to provide a cushioning effect, so that the internal components of the torque wrench during the pulling operation are not caused by the torque wrench facing the tool member 10 The pulling force causes the component to be stuck to ensure the quality of use.

As shown in FIGS. 1, 3, and 4, when the adjustment grip 40 is disengaged from the fastener 31, the upper scale 71 of the fine adjustment scale 70 is exposed by the viewing aperture 314 (as shown in FIG. 3); When the grip 40 is in the engaged state with respect to the fastener 31, the lower scale 72 of the fine adjustment scale 70 can be exposed by the viewing hole 314 (as shown in FIG. 3), so that when the user adjusts the torque value, the direct calibration can be directly The viewing aperture 314 observes the torque value of the fine adjustment scale 70 to clearly define the high precision torque standard value.

In addition, the tube body 20 is provided with an observation hole corresponding to one side of the coarse adjustment scale 80, so that the coarse adjustment scale 80 is exposed, and of course, a dust shield can be added as a protection, so that the observation hole can be used for the user to observe nearby. To avoid excessive force operation.

Therefore, by using the setting of the fine adjustment scale 70 and the coarse adjustment scale 80, it is possible to clearly establish a precise torque standard value, thereby avoiding a situation in which the user excessively applies the force.

Although the present invention has been described in terms of a preferred embodiment, it is obvious to those skilled in the art that various changes can be made without departing from the spirit and scope of the invention. The above embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Any modification or change that is not in violation of the spirit of this creation is the scope of patent application for this creation.

10‧‧‧Tools

12‧‧‧ Fixed Department

21‧‧‧ first end

30‧‧‧Torque adjustment elastic components

311‧‧‧First Limitation Department

313‧‧‧ screw retainer

32‧‧‧active blocks

34‧‧‧Connecting parts

36‧‧‧ screw seat

41‧‧‧ Second Limit Department

43‧‧‧Limited slot

45‧‧‧Second recess

50‧‧‧ screw

52‧‧‧Abutment

60‧‧‧Flexible parts

71‧‧‧Upscale

80‧‧‧ coarse scale

11‧‧‧ Drive Department

20‧‧‧ tube body

22‧‧‧ second end

31‧‧‧Card Firmware

312‧‧‧Fixed unit

314‧‧ ‧ viewing hole

33‧‧‧ Spring

35‧‧‧ Tuning block

40‧‧‧Adjust grip

42‧‧‧ accommodating slots

44‧‧‧First recess

46‧‧‧Card Department

51‧‧‧Connecting end

53‧‧‧ hole

70‧‧‧ fine-tuning scale

72‧‧‧lower scale

[Fig. 1] is an exploded view of the authoring structure. [Fig. 2] is a schematic cross-sectional view of the grip adjustment for the present creation. [Fig. 3] is a schematic diagram of the upper scale of the fine adjustment scale for the grip adjustment of the present creation. [Fig. 4] is a schematic diagram of the lower scale of the fine adjustment scale for the grip adjustment of the present creation.

10‧‧‧Tools

11‧‧‧ Drive Department

12‧‧‧ Fixed Department

20‧‧‧ tube body

21‧‧‧ first end

22‧‧‧ second end

30‧‧‧Torque adjustment elastic components

31‧‧‧Card Firmware

311‧‧‧First Limitation Department

312‧‧‧Fixed unit

313‧‧‧ screw retainer

314‧‧ ‧ viewing hole

32‧‧‧active blocks

33‧‧‧ Spring

34‧‧‧Connecting parts

35‧‧‧ Tuning block

36‧‧‧ screw seat

40‧‧‧Adjust grip

41‧‧‧ Second Limit Department

42‧‧‧ accommodating slots

43‧‧‧Limited slot

44‧‧‧First recess

45‧‧‧Second recess

46‧‧‧Card Department

50‧‧‧ screw

51‧‧‧Connecting end

52‧‧‧Abutment

53‧‧‧ hole

60‧‧‧Flexible parts

70‧‧‧ fine-tuning scale

71‧‧‧Upscale

72‧‧‧lower scale

80‧‧‧ coarse scale

Claims (10)

A torque wrench structure comprising: a tool member having a driving portion and a fixing portion; a tube body having a first end and a second end, the first end being received by the fixing portion; The torsion adjusting elastic component is disposed in the tube body and has one end connected to the fixing portion; an adjusting grip is sleeved on the second end of the tube body, and the adjusting grip can adjust the elastic component with the torsion force a clutching action is generated at one end to enable the adjusting grip to be slid or rotated along the axial direction of the tubular body; a screw is disposed in the adjusting grip, and is rotatable with the adjusting grip The screw has a connecting end and an abutting end connected to the torsion adjusting elastic component; and an elastic member having one end abutting the abutting end and the other end abutting the adjusting grip. The torque wrench structure of claim 1, wherein the abutting end has a hole for receiving the end of the elastic member. The torque wrench structure of claim 2, wherein the adjustment grip has a receiving groove for the screw, and the inner end of the receiving groove is provided with a limiting groove for sliding the abutting end of the screw And does not produce relative rotation. The torque wrench structure of claim 3, wherein the abutting end and the limiting groove are in a sliding fit with a non-circular structure. The torque wrench structure of claim 4, wherein the torsion adjusting elastic component comprises a screw seat disposed in the adjusting grip for the connecting end of the screw to be threaded and screwed with the screw. The torque wrench structure of claim 1, wherein the elastic member is a spring. The torque wrench structure of claim 1 , wherein the torque adjustment elastic component comprises a fastener disposed at the second end of the tubular body, the fastener can be engaged with the adjustment grip at one end, and the fastener has a fixing unit having a first recess and a second recess, the first recess or the second recess being selectively engaged with the fixing unit. The torque wrench structure of claim 7, wherein the adjustment grip is fixed with a fine adjustment scale adjacent to the second end of the tubular body. The torque wrench structure of claim 8, wherein the fastener has a viewing aperture, the fine adjustment scale has an upper row scale and a lower row scale, when the adjustment grip is slipped relative to the tube body, The upper scale or the lower scale can be exposed by the viewing aperture. The torque wrench structure of claim 1, wherein the inside of the pipe body is provided with a coarse adjustment scale, the pipe body is exposed outside the coarse adjustment scale, and the inner side is connected with the torque adjustment elastic component and adjusted according to the operation thereof. Scale value.