TWI778853B - Torque tool - Google Patents

Abstract

A torque tool includes a sleeve; a drive group includes an end sleeve, a drive member and a spring A spring, the end part sleeves the driving part, the spring is in the sleeve with one end facing the driving part and the other end sleeves a pressing sleeve; the pressing sleeve forms a fixed end sleeve with the set groove; the fixed end sleeve has an inner sleeve A screw hole, an outer edge, and the outer edge is assembled with the other end of the sleeve; a pressure regulating shaft is located in the sleeve and has a connected external thread segment and a non-circular segment. The shape segment passes through the sleeve; and a rotating sleeve has a non-circular hole, the non-circular hole sleeve sets the non-circular segment and rotates the pressure regulating shaft, and the pressure regulating shaft rotates in the inner screw hole and drives the pressure sleeve to change the spring compression drive To adjust the torque setting value, avoid the friction loss of the structure caused by the operation and improve the smoothness of the torque setting value adjustment operation.

Description

Torque Tool

The present invention relates to the technical field of hand tool equipment, in particular to a torque tool.

For example, the invention patent No. I680839 "torque sleeve" was published, and the purpose of its creation is to shorten the overall length of the torsion sleeve, so as to improve the work efficiency in a narrow working environment, and to facilitate the storage effect; An abutting piece is slidably installed in the body in a non-rotatable manner, and an accommodating groove is opened in the direction of the driving part of the main body, so that the elastic piece of the driving part is inserted into the accommodating groove and abuts against the abutting piece, and the abutting piece is A screw hole is drilled; a mandrel is rotatably arranged in the body relative to the body and a threaded section is provided, and the threaded section is screwed into the screw hole; and a set is rotatably sleeved on the body and is non-rotatable. It is assembled with an end of the mandrel away from the thread segment, so as to drive the mandrel to rotate by rotating the sleeve, the thread segment drives the abutting member to slide along the axial direction to adjust the torque setting value.

However, in the above-mentioned prior art, in order to enable the abutting member to only slide relative to the body without rotating, as described in paragraph 0016 of the specification, the body is further provided with a first insertion hole in the radial direction, and the abutting member is opened along the axial direction There is a sliding groove, and a first pin is inserted into the sliding groove and the first socket structure; it not only causes the body to be structurally damaged due to the setting of the first socket, but also the abutting member along the edge of the structure. The structural damage caused by the axial section with a chute will be more obvious.

Moreover, the abutting member slides relative to the first pin member through the chute formed by the broken ring without rotating, so that the sliding of the inner groove surface of the chute relative to the external thread of the first pin member will be subject to the force from the axial movement and the Resisting the double force of rotation, resulting in relatively serious friction loss between the chute and the first pin, It may cause the chute to gradually expand and affect the smoothness and accuracy of the operation, and the external thread of the first pin will fall off after being worn out because it cannot be screwed to the body, resulting in the inability to perform the torque adjustment operation and loss of use function.

The main purpose of the present invention is to provide a torsion tool, which does not use a damaged structure in the combined components, and does not perform a contact operation operation through the damaged structure, so as to avoid the friction loss caused by the use and operation, and make the torque setting value more stable. Adjustment effectively improves smoothness.

In order to achieve the above purpose and effect, a torque tool of the present invention includes: a sleeve, one end of which is provided with a driving group and the other end is provided with a fixed end sleeve.

The drive set includes an end sleeve, a drive member and a spring, the end sleeve is sleeved on one end of the sleeve and sets the drive member, and the spring pushes toward the drive member with one end in the sleeve, And the other end of the spring is set with a pressing sleeve; the sleeve has a plurality of axial guide grooves recessed in the inner cylinder wall, the driving set includes a snap ring located between the driving part and the spring, the snap ring has The plurality of convex guide portions are radially protruded and slidably assembled on the axial guide grooves. The axial guide grooves drive the snap ring to rotate, and the snap ring is pushed by the spring to engage and drive the drive member to rotate.

The pressing sleeve is located in the sleeve and has a set of grooves facing the opposite end of the driving group, and an outer flange provided at the open end of the sleeve groove and abutting against the spring, and the sleeve groove sets the fixed end sleeve.

The fixed end sleeve has an inner screw hole and an outer edge, and the outer edge is located at the opposite end of the driving group and assembled with the sleeve.

A pressure regulating shaft is located in the sleeve and has a connected external thread segment and a non-circular segment, the external thread segment is screwed with the inner thread hole, and the non-circular segment penetrates out of the sleeve.

And a swivel sleeve with a non-circular hole, the swivel sleeve sets the non-circular segment through the non-circular hole and rotates the pressure regulating shaft, the pressure regulating shaft rotates in the inner threaded hole with the external thread segment and rotates along the sleeve The cylinder axially drives the compression sleeve to displace, and the compression sleeve changes the degree to which the spring compresses the driving member to adjust the torque setting value.

10: Sleeve

11: Internal thread segment

12: Limit hole

13: Outer clamping surface

14: Axial guide groove

15: Axial observation hole

16: Drive end

17: Adjustment end

20: Drive group

21: End sleeve

22: Drivers

221: drive slot

222: Snap Flange

223: Guide post

224: Grit

2241: Miter Face

23: Spring

24: Bite Ring

241: Middle hole

242: Second bite

2421: Second Miter Surface

243: convex guide

30: press sleeve

31: Outer flange

32: Slots

40: Fixed end sleeve

41: Internal screw hole

42: Outer edge

421: External thread segment

422: outside the face

423: Card hole

50: Pressure regulating shaft

51: External thread segment

52: Non-circular segment

60: Turn sets

61: non-circular hole

62: Abutment surface

63: Elastic steel ball

70: Turn the handle

71: Girdle

711: inner clip surface

712: Fixed pin

80: Support seat

81: Ring base

811: Groove

82: Socket

821: Slots

A: screwdriver

The first figure is a schematic diagram of a three-dimensional assembly of the present invention.

The second figure is a schematic exploded perspective view of the present invention.

The third figure is an exploded perspective view of the driving element and the snap ring of the present invention.

The fourth figure is a schematic cross-sectional view of the line segment IV-IV of the first figure.

The fifth figure is a schematic diagram of the adjustment operation of changing the torque setting value of the present invention.

Fig. 6 is a schematic diagram of disengaging from the engagement when the driving element of the present invention is subjected to a torsion force greater than the torque setting value, so that the chamfered surface of the bite teeth provides a sliding relative abutment of the second bite teeth.

The seventh figure is a three-dimensional schematic diagram of the present invention further having a turning handle.

Figure 8 is a schematic plan view of the labor-saving operation of rotating the sleeve through the longer lever arm of the turning handle according to the present invention.

The ninth figure is a perspective exploded schematic view of the present invention further using the support base to provide the sleeve storage support.

Fig. 10 is a schematic diagram of the present invention further providing a support sleeve with a support seat in an upright storage state.

Please refer to Figures 1 to 10, a torque tool of the present invention includes: a sleeve 10 having a driving end 16 and an adjusting end 17, one end of which (the driving end 16 shown in the figure) is provided with a driving group 20 and the other end (the adjustment end 17 is shown in the figure) is provided with a fixed end sleeve 40; The driving group 20 includes an end sleeve 21, a driving member 22 and a spring 23. The end sleeve 21 is disposed on one end of the sleeve 10 (the driving end 16 shown in the figure) and sets the driving member 22. One end of the spring 23 pushes in the direction of the driving member 22 in the sleeve 10, and the other end of the spring 23 is assembled with a pressing sleeve 30; the pressing sleeve 30 is located in the sleeve 10 and has a direction toward the driving group A set of grooves 32 at the opposite end of 20, and an outer flange 31 located at the open end of the set of grooves 32 and abutting against the spring 23, the set of grooves 32 sets the fixed end sleeve 40; the fixed end sleeve 40 has an inner The screw hole 41 and an outer edge 42, the outer edge 42 is located at the opposite end of the driving group 20 and assembled with the sleeve 10; a pressure regulating shaft 50 is located in the sleeve 10 and has a connected outer A thread segment 51, a non-circular segment 52, the outer thread segment 51 is screwed with the inner thread hole 41 and the non-circular segment 52 passes through the sleeve 10; and a swivel 60 with a non-circular hole 61. The rotating sleeve 60 sets the non-circular segment 52 with the non-circular hole 61 and rotates the pressure regulating shaft 50. The pressure regulating shaft 50 rotates with the external thread segment 51 in the inner screw hole 41 and rotates along the axis of the sleeve 10 To drive the pressure sleeve 30 to move, the pressure sleeve 30 changes the degree to which the spring 23 compresses the driving member 22 to adjust the torque setting value.

The foregoing are the main technical features of the main embodiment of the present invention, which correspond to the content of the first item in the scope of the patent application of this case, so that the purpose and implementation form of the present invention can be known in detail, and the technical features described in the scope of the other subsidiary applications are for the purpose of The detailed description or additional technical features of the first item of the scope of the patent application are not intended to limit the scope of the first item of the scope of the patent application. technical characteristics.

Continuing with the above content, the embodiment, the use effect and the use effect of the present invention will be described in detail. Since the drive group 20 provided at one end of the sleeve 10 of the present invention includes an end sleeve 21, a drive member 22 and a spring 23, the spring 23 is located in the sleeve One end of the cylinder 10 pushes the driving member 22, and the other end is set to press the sleeve 30, and the press sleeve 30 is set. A fixed end sleeve 40 is assembled. The fixed end sleeve 40 is assembled on the other end of the sleeve 10 and has an inner screw hole 41; a pressure regulating shaft 50 has an external thread section 51 and a non-circular section 52. The pressure regulating shaft 50 In the structure in which the outer thread segment 51 is screwed into the inner thread hole 41 in the sleeve 10, and the non-circular segment 52 is passed through the inner thread hole 41 and is combined with the swivel sleeve 60, any combination element is not damaged. structure.

Moreover, when the present invention adjusts the torque setting value, as shown in the fifth figure, the non-circular segment 52 of the rotating sleeve 60 rotates the outer thread segment 51 of the pressure regulating shaft 50 to rotate the inner thread hole 41 to form a displacement, and pushes the pressure When the sleeve 30 descends along the axial direction of the sleeve 10 (the direction of the arrow in the figure), the complete inner groove wall of the sleeve groove 32 forms a unidirectional force along the outer peripheral surface of the fixed end sleeve 40 to change the displacement to compress the spring 23 and the driving member 22. It can guide the pressing sleeve 30 smoothly to reduce wear and make the adjustment of the torque setting value more accurate. Actions by contacting each other through the destroyed structure

Therefore, compared with the above-mentioned wear and tear caused by the contact between the damaged structures in the prior art, the compression sleeve 30 of the torque tool of the present invention changes the degree of compressing the spring 23 and the driving member 22 by the displacement of the unidirectional force, which can effectively avoid Cause friction loss in operation, and improve the smoothness and accuracy of torque setting value adjustment.

The features of each element of the present invention will be described in further detail below. In the first to tenth figures above, the sleeve 10 has an inner threaded section 11 disposed on the inner cylinder wall, and the outer edge 42 has an inner threaded section 11 disposed on the outer periphery. The external thread segment 421 is screwed to the internal thread segment 11, as shown in the fourth figure; therefore, the sleeve 10 and the outer edge 42 of the fixed end sleeve 40 can be combined and fixed.

Next, as shown in Figures 7 and 8, it further includes a turning handle 70 having a sleeve 71 pivoted at one end, the sleeve 71 having two opposite inner clamping surfaces 711, and the sleeve 10 having opposite two outer clamping surfaces Surface 13, the two outer clamping surfaces 13 are located on the outer peripheral surface of one end of the sleeve 10 close to the fixed end sleeve 40, the sleeve 71 is assembled on the end of the sleeve 10 close to the fixed end sleeve 40, and the two inner clamps The surface 711 is fixed against the two outer clamping surfaces 13; Therefore, by the two inner clamping surfaces 711 being clamped against the two outer clamping surfaces, the sleeve 10 can be rotated through the longer lever arm of the turning handle 70 , so that the driving member 22 of the driving group 20 can drive the driving slot 221 more easily. The screwdriver bit A of the inner set to achieve labor-saving operation.

Furthermore, the sleeve 10 has two limiting holes 12 disposed on the two outer clamping surfaces 13 , and the binding sleeve 71 has two fixing pins 712 radially penetrating the two inner clamping surfaces 711 , and the two fixing pins 712 can pass through. The inner ends of the two inner clamping surfaces 711 are abutted against the two limiting holes 12 and fixed; therefore, the firmness of the combination of the binding sleeve 71 and the sleeve 10 can be enhanced, and the stability of the sleeve 10 can be smoothly rotated. .

In addition, as shown in the third and sixth figures, the sleeve 10 has a plurality of axial guide grooves 14 recessed in the inner cylinder wall, and the driving group 20 includes a snap ring between the driving member 22 and the spring 23 24. The snap ring 24 has a plurality of convex guide portions 243 radially protruding and slidingly assembled on the axial guide grooves 14. The axial guide groove 14 drives the snap ring 24 to rotate, and the snap ring 24 is pushed by the spring 23 The occlusion drives the driving member 22 to rotate. Moreover, the driving member 22 has a driving slot 221 at one end, an engaging flange 222 at the other end, a guide post 223 and a plurality of bite teeth 224, the guide post 223 protruding from the engaging flange 222 toward the engaging In the center of the surface of the ring 24 , the plurality of bite teeth 224 are annularly arranged on the engagement flange 222 outside the guide post 223 at a distance, and the engagement ring 24 has a center hole 241 and a plurality of second bite teeth 242 for assembling the guide post 223 , the plurality of second bite teeth 242 are located on the outer peripheral side of the middle hole 241 and protrude toward the gap ring row of the plurality of bite teeth 224 and engage with each other. The plurality of second bite teeth 242 respectively have a second chamfered surface 2421 abutting against each other; therefore, as shown in the sixth figure, the torsion force of the axial guide groove 14 of the sleeve 10 to drive the bite ring 24 to rotate is greater than the torsion force When the value is set, the chamfered surfaces 2241 of the plurality of bite teeth 224 provide the second chamfered surfaces 2421 of the second bite teeth 242 to abut against each other to form sliding and disengage from the bite.

In addition, as shown in the first and second figures, the sleeve 10 has an axial observation hole 15 penetrating the cylinder wall, and the axial observation hole 15 is provided at one end close to the pressing sleeve 30 (the adjustment end is shown in the figure). 17); therefore, the displacement position of the pressing sleeve 30 can be observed during the operation of adjusting the torque setting value provided by the driving member 22 to assist the operation of adjusting the torque setting value provided by the driving member 22.

Moreover, as shown in the second and fifth figures, the outer edge 42 has an outer backing surface 422 facing the rotating sleeve 60 and a plurality of locking holes 423 disposed on the outer backing surface 422, and the plurality of locking holes 423 are connected to the inner screw The outer peripheral side of the holes 41 is arranged concavely on the outer abutting surface 422 at equal angular intervals. The rotating sleeve 60 has an abutting surface 62 opposite to the outer abutting surface 422 and at least one elastic steel ball 63 protruding from the abutting surface 62 , and the at least one elastic steel ball 63 is relatively pushed into one of the plurality of clamping holes 423 ; therefore, when the rotating sleeve 60 rotates the pressure regulating shaft 50 to change the operation of adjusting the torque setting value provided by the driving member 22 , The elastic steel ball 63 is pushed into one of the plurality of card holes 423 to abut against the limit to form an operating feel with a change in the rotational tightness to assist the operation of adjusting the torque setting value.

Finally, as shown in the ninth and tenth figures, a support base 80 is further included. The support base 80 includes a ring base 81 and a socket part 82 protruding from the center of the upper surface of the ring base 81 . The socket part 82 has A set of grooves 821, the ring base 81 has a plurality of insert grooves 811 recessed on the peripheral side of the socket portion 82 and provided for accommodating the driver bit A; therefore, the groove 821 is provided with the opening upward to provide the sleeve 10 to set the The lower end sleeve of the end sleeve 21 is assembled, and supports the sleeve 10 to form a vertical storage state that can save space, as shown in Figure 10.

10: Sleeve

15: Axial observation hole

20: Drive group

21: End sleeve

40: Fixed end sleeve

42: Outer edge

60: Turn sets

Claims (8)

A torsion tool, comprising: a sleeve, one end of which is provided with a driving group and the other end is provided with a fixed end sleeve; the driving group includes one end sleeve, a driving member and a spring, and the end is sleeved on the sleeve One end of the spring is assembled with the driver, one end of the spring is pushed in the direction of the driver in the sleeve, and the other end of the spring is assembled with a pressure sleeve; a guide groove, the driving group includes a snap ring located between the drive member and the spring, the snap ring has a plurality of convex guide portions radially protruding and slidingly assembled on the axial guide grooves, the axial guide groove drives the The snap ring rotates, and the snap ring is pushed by the spring to engage and drive the driving member to rotate; the pressing sleeve is located in the sleeve and has a set of grooves facing the opposite end of the driving group, and is provided at the open end of the set of grooves and is Abutting against an outer flange of the spring, the groove sleeve assembles the fixed end sleeve; the fixed end sleeve has an inner screw hole and an outer edge, the outer edge is located toward the opposite end of the driving group and assembled with the sleeve A cylinder; a pressure regulating shaft, which is located in the sleeve and has a connected external thread segment and a non-circular segment, the external thread segment is screwed with the internal thread hole and the non-circular segment passes out of the sleeve ; And a swivel sleeve with a non-circular hole, the swivel sleeve sets the non-circular segment with the non-circular hole and rotates the pressure regulating shaft, and the pressure regulating shaft rotates in the inner threaded hole with the external thread segment and along the The sleeve axially drives the compression sleeve to displace, and the compression sleeve changes the degree to which the spring compresses the driving member to adjust the torque setting value. The torque tool as claimed in claim 1, wherein the sleeve has an inner thread segment arranged on the inner cylinder wall, the outer edge has an outer thread segment arranged at the outer periphery, and the outer thread segment is screwed into the inner thread Threaded segment. The torque tool of claim 1, further comprising a handle having a sleeve pivoted at one end, the sleeve has two opposite inner clamping surfaces, and the sleeve has two opposite outer clamping surfaces, the two outer clamping surfaces The surface is located on the outer peripheral surface of one end of the sleeve close to the fixed end sleeve, and the bundle sleeve is assembled on the end of the sleeve close to the fixed end sleeve and fixed with the two inner clamping surfaces against the two outer clamping surfaces. The torque tool as claimed in claim 3, wherein the sleeve has two limiting holes disposed on the two outer clamping surfaces, the tie sleeve has two fixing pins radially passing through the two inner clamping surfaces, and the two fixing pins can be The inner ends penetrating the two inner clamping surfaces are pressed against the two limiting holes and fixed. The torque tool as claimed in claim 1, wherein the driving member has a driving groove at one end and an engagement flange at the other end, a guide post and a plurality of bite teeth, the guide post is protruding from the engagement flange toward In the center of the surface of the bite ring, the plurality of bite teeth are arranged in a spaced ring on the bite flange outside the guide post, the bite ring has a center hole for assembling the guide post and a plurality of second bite teeth, the plurality of second bite teeth The teeth are located on the outer peripheral side of the middle hole and are protruded towards the gap ring row of the plurality of bite teeth and meshed with each other. A second miter surface. The torque tool as claimed in claim 1, wherein the sleeve has an axial observation hole penetrating the cylinder wall, and the axial observation hole is provided at one end close to the pressing sleeve. The torque tool as claimed in claim 1, wherein the outer edge has an outer backing surface facing the turning sleeve and a plurality of clamping holes arranged on the outer backing surface, the plurality of clamping holes are on the outer peripheral side of the inner screw hole and so on. The angularly spaced arrangement is concavely arranged on the outer abutment surface, the rotating sleeve has an abutment surface opposite to the outer abutment surface and at least one elastic steel ball protruding on the abutment surface, and the at least one elastic steel ball is relatively pushed into the outer abutment surface One of the plural card holes. The torque tool as claimed in claim 1, further comprising a support seat, the support seat includes a ring base and a socket part protruding from the center of the upper surface of the ring base, the socket part has a set of grooves, the ring base part There are a plurality of insert grooves which are concavely arranged on the peripheral side of the socket and provide the driver bit accommodation.

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