TWI842568B - Rotational positioning device for power tools - Google Patents

Abstract

A rotary positioning device for a power tool is provided with a rotary group and a positioning group. The rotary group is arranged between a handle and an actuating head of a power tool and is provided with at least one engaging portion and a locking member. The at least one engaging portion is arranged on the outer surface of the actuating head, and the locking member is arranged on the actuating head and is engaged with the at least one engaging portion. The positioning group is arranged between the handle and the actuating head and corresponds to the rotary group and is provided with a coupling portion, a plurality of positioning portions and an operating key. When the actuating head rotates relative to the handle, one of the positioning portions can move into the coupling portion, and the operating key can be movably engaged with the coupling portion and can be engaged with the positioning portion located in the coupling portion, thereby providing a rotary positioning device that can adjust the angle and can be stably fixed.

Description

Rotational positioning device for power tools

The present invention relates to a rotary positioning device, in particular to a rotary positioning device for a power tool that can adjust the angle and stably fix the position.

According to the existing power tool, a handle and an actuator head combined with the handle are combined in a fixed form, and the direction of the actuator head is the same as the pressing direction of the trigger of the handle. Therefore, when the user holds the handle of the existing power tool to process the workpiece located at the corner of the wall or at a special angle, when the front side of the handle is close to the surrounding environment, the user cannot smoothly press the trigger located at the front side of the handle to process, which will increase the inconvenience in use. Therefore, the structural state of the fixed handle of the existing power tool will be limited by the surrounding environment or the state of the workpiece structure during use, which will not only increase the inconvenience in use, but also affect the practicality of the existing power tool.

In view of this, an adjustable power tool has been developed on the market. Although the handle of the existing adjustable power tool can be rotated and adjusted relative to the actuator head according to the needs of the user, the existing power tool does not have any mechanism or device for positioning the handle and the actuator head between the handle and the actuator head. When the existing adjustable power tool is driven by electricity or gas, the handle and the actuator head are prone to relative shaking or rotation due to vibration, which will affect the safety of use. The shaking actuator head will also affect its operating quality. Therefore, the structural type of the existing adjustable power tool really needs to be improved.

In order to solve the problem that the handle and the actuator head of the existing adjustable power tool will shake or rotate relative to each other due to vibration during use, which will not only increase the inconvenience in use, but also affect the operating quality of the existing adjustable power tool. The present invention provides a rotation positioning device for a power tool, which can provide a stable fixed position effect after the handle rotates relative to the actuator head, so that after the actuator head adjusts the angle relative to the handle, the direction of the handle and the actuator head can be stably positioned, thereby providing a rotation positioning device for a power tool that can adjust the angle and stably fix the position.

Based on the above purpose, the present invention is to provide a rotation positioning device for a power tool, which is arranged between a handle and an actuating head of a power tool, the handle is provided with a coupling groove at the top, and the bottom of the actuating head is rotatably arranged at the coupling groove of the handle, and the rotation positioning device for the power tool is provided with: a rotation group, the rotation group is arranged between the handle and the actuating head and is provided with at least one clamping part and a clamping member, the at least one clamping part is arranged on the outer surface of the actuating head, the clamping member is arranged on the actuating head and is clamped and combined with the at least one clamping part; and a certain Positioning group, the positioning group is arranged between the handle and the actuator head and corresponds to the rotating group, the positioning group is provided with a coupling part, a plurality of positioning parts and an operating key, the coupling part is arranged on the handle and adjacent to the coupling groove, the plurality of positioning parts are arranged on the clamping part at intervals, when the actuator head rotates relative to the handle, the plurality of positioning parts rotate relative to the handle along with the actuator head via the clamping part, so that one of the positioning parts moves into the coupling part, the operating key can be movably coupled with the coupling part and can be clamped and coupled with the positioning part located in the coupling part.

Furthermore, in the above-mentioned rotation positioning device of the power tool, each of the engaging parts is an engaging surface formed on the outer surface of the actuator head, and the clamping member is an annular body set on the actuator head, and a clamping surface is provided on the inner surface to be clamped and combined with the at least one engaging part, so that the clamping member can be fixed on the actuator head through the at least one engaging part.

Furthermore, in the above-mentioned rotary positioning device for a power tool, the coupling portion is a through slot connected to the coupling slot, so that the plurality of positioning portions on the actuator head can enter the through slot through the coupling slot and correspond to the operating key.

Preferably, in the above-mentioned rotary positioning device for a power tool, each positioning portion is a positioning protrusion disposed downward and surrounding the bottom surface of the clamping member, and the operating key has at least one positioning protrusion disposed upward on the inner side extending into the through slot and can be clamped with the positioning protrusion.

Preferably, in the above-mentioned rotary positioning device for a power tool, the operating key is provided with a push unit at the bottom, the push unit is located in the coupling portion and pushes the operating key to move upward, so that the positioning protrusion of the operating key is maintained in engagement with the positioning protrusion moved into the coupling portion.

Preferably, as in the above-mentioned rotary positioning device for a power tool, the operating key is provided with a push plate protruding on the outer side, the push plate shields the coupling part and abuts against the outer surface of the handle, so that the operating key can move up and down relative to the coupling part along the outer surface of the handle; the positioning assembly is provided with two guide parts, the two guide parts are spaced apart on the outer surface of the handle and are respectively located on both sides of the coupling part, and the push plate is located between the two guide parts.

Preferably, as in the above-mentioned rotary positioning device for a power tool, the positioning assembly is provided with a set rod and a limit rod, the set rod is longitudinally passed through the operating key and combined with the handle, the push unit is sleeved on the set rod and pushes against the bottom of the operating key, and the limit rod is transversely passed through the top of the handle and is located above the set rod, so as to prevent the set rod from being separated from the operating key through the top of the handle.

Based on the above purpose, the present invention is to provide a rotation positioning device for a power tool, which is arranged between a handle and an actuating head of a power tool, the handle is provided with a coupling groove at the top, and the bottom of the actuating head is rotatably arranged at the coupling groove of the handle. The rotation positioning device for the power tool is provided with: A rotation group, the rotation group is arranged between the handle and the actuating head and is provided with a plurality of clamping parts and at least one clamping member, the plurality of clamping parts are arranged at intervals at the top of the handle and extend into the coupling groove, the at least one clamping member is arranged on the actuating head, when the actuating head is combined with the handle, the at least one clamping member A clamping member can be selectively clamped and combined with one of the clamping parts; and a positioning group, the positioning group is arranged between the handle and the actuating head and corresponds to the rotating group, the positioning group is provided with a coupling part, a plurality of positioning parts and an operating key, the coupling part is arranged on the handle and adjacent to the coupling groove, the plurality of positioning parts are arranged on the actuating head at intervals and respectively correspond to the positions of the plurality of clamping parts, when the actuating head rotates relative to the handle, one of the positioning parts can move into the coupling part, the operating key can be movably combined with the coupling part and can be clamped and combined with the positioning part located in the coupling part.

Furthermore, in the above-mentioned rotary positioning device for a power tool, each of the engaging parts is an engaging groove, each of the engaging grooves is axially recessed at the top of the handle and connected to the coupling groove, and the at least one engaging member is radially retractable and arranged on the outer surface of the actuator head to extend into one of the engaging grooves.

Furthermore, in the above-mentioned rotary positioning device for a power tool, the at least one clamping member is provided with a receiving groove, a bead and a butt-joint member, the receiving groove is radially recessed on the outer surface of the actuator head, the bead is movably arranged in the receiving groove and can extend out of the receiving groove to be engaged with one of the engaging grooves, the butt-joint member is arranged in the receiving groove and abuts against the bead, and the bead can be engaged with one of the engaging grooves by the push of the butt-joint member.

Preferably, in the above-mentioned rotary positioning device for a power tool, the coupling portion is a through slot connected to the coupling slot, so that the plurality of positioning portions on the actuator head can enter the through slot through the coupling slot and correspond to the operating key.

Preferably, as in the above-mentioned rotary positioning device for a power tool, each positioning portion is a positioning groove with an opening facing downward and axially recessed on the actuator head, and the operating key is provided with a positioning protrusion protruding upward on the inner side extending into the through groove and capable of engaging with the positioning groove.

Preferably, in the above-mentioned rotary positioning device for a power tool, the operating key is provided with a push unit at the bottom, the push unit is located in the coupling part and pushes the operating key to move upward, so that the positioning protrusion of the operating key is maintained to be engaged with the positioning groove moved into the coupling part.

Preferably, in the above-mentioned rotary positioning device for a power tool, the operating key is provided with a push plate protruding from the outer side, the push plate shields the coupling portion and abuts against the outer surface of the handle, so that the operating key can move up and down relative to the coupling portion along the outer surface of the handle.

Preferably, the rotation positioning device of the power tool as described above, wherein the positioning assembly is provided with two guide parts, the two guide parts are spaced apart on the outer surface of the handle and are respectively located on both sides of the coupling part, and the push plate is located between the two guide parts.

Preferably, as in the above-mentioned rotary positioning device for a power tool, the positioning assembly is provided with a set rod and a limit rod, the set rod is longitudinally passed through the operating key and combined with the handle, the push unit is sleeved on the set rod and pushes against the bottom of the operating key, and the limit rod is transversely passed through the top of the handle and is located above the set rod, so as to prevent the set rod from being separated from the operating key through the top of the handle.

By virtue of the above technical features, when the rotary positioning device of the power tool of the present invention is used, when the user wants to adjust the angle of the actuator head relative to the handle, the user pushes the push plate downward with one hand, driving the operating key to move downward along the sleeve rod relative to the coupling part and compressing the push unit, so that the positioning protrusion is separated from the positioning part located in the coupling part. At this time, the user can rotate the actuator head relative to the handle with the other hand to rotate the actuator head to the desired angle. At this time, the positioning part that is linearly opposite to the engaging part will move into the coupling part. After the user removes the hand that pushes the push plate, the compressed push unit will push the operating key relative to the coupling part. The engaging part moves upward, so that the positioning protrusion is engaged with the positioning part moved into the engaging part. By setting the rotating group and the positioning group between the handle and the actuator head, the user can conveniently adjust the angle of the actuator head relative to the handle for use without being restricted by the surrounding environment or the state of the workpiece structure. The rotating actuator head can be stably engaged with the handle after rotation, and the actuator head will not shake or rotate relative to the handle due to vibration. This can not only improve the safety of using the power tool, but also improve the operating quality of the power tool, thereby providing a rotation positioning device for a power tool that can adjust the angle and stably fix the position.

10,10A: Rotating group

11,11A: snap-fit part

12,12A: Card device

121A: Storage slot

122A: Bead

123A: Top piece

20,20A: Positioning group

21,21A: junction

22,22A: Positioning part

23,23A: Operation keys

231,231A: Positioning bump

232,232A: Push unit

233,233A: Push plate

24,24A: Guidance Department

25,25A: Set rod

26,26A: Limit rod

40: Handle

41: Binding slot

42: Locking seat

50: Actuator head

Figure 1 is a three-dimensional appearance diagram of the first preferred embodiment of the present invention.

Figure 2 is a three-dimensional exploded view of the first preferred embodiment of the present invention.

Figure 3 is another three-dimensional exploded view of the first preferred embodiment of the present invention.

Figure 4 is a partially enlarged three-dimensional cross-sectional view of the first preferred embodiment of the present invention.

Figure 5 is a cross-sectional side view of the first preferred embodiment of the present invention.

Figures 6 and 7 are schematic diagrams of the angle adjustment operation of the second preferred embodiment of the present invention.

Figure 8 is a three-dimensional appearance diagram of the second preferred embodiment of the present invention.

Figure 9 is a three-dimensional exploded view of the second preferred embodiment of the present invention.

Figure 10 is a partially enlarged three-dimensional cross-sectional view of the second preferred embodiment of the present invention.

Figure 11 is a partially enlarged cross-sectional side view of the second preferred embodiment of the present invention.

Figure 12 is a cross-sectional side view of the angle adjustment of the second preferred embodiment of the present invention.

Figures 13 and 14 are schematic diagrams of the operation of adjusting the angle of the second preferred embodiment of the present invention.

In order to understand the technical features and practical effects of the present invention in detail and to implement it according to the contents of the manual, the preferred embodiments shown in the drawings are further described as follows: The present invention is a rotary positioning device for a power tool, and its first preferred embodiment is shown in Figures 1 to 4. It is arranged between a handle 40 and an actuator 50 of a power tool, wherein the handle 40 has an opening at the top. The handle 40 has a mouth-shaped coupling groove 41, and a locking seat 42 extending to the coupling groove 41 is provided inside. The locking seat 42 is rotatably provided in the handle 40. The bottom of the actuator 50 is provided in the coupling groove 41 and coupled with the locking seat 42, so that the actuator 50 can be rotatably provided at the top of the handle 40. The first preferred embodiment of the rotary positioning device of the power tool of the present invention has a rotary The rotating assembly 10 and a positioning assembly 20, wherein: please refer to FIG. 2 and FIG. 3, the rotating assembly 10 is disposed between the handle 40 and the actuator 50 and is provided with at least one engaging portion 11 and a locking member 12, the at least one engaging portion 11 is provided on the outer surface of the actuator 50, preferably, the rotating assembly 10 is provided with a plurality of engaging portions 11 disposed at intervals, and each of the engaging portions 11 is formed on the The engaging surface on the outer surface of the actuator head 50, the engaging member 12 is arranged on the actuator head 50 and is engaged with the at least one engaging portion 11. Preferably, the engaging member 12 is a ring-shaped body arranged on the actuator head 50, and has an engaging surface on the inner surface that is engaged with the at least one engaging portion 11, so that the engaging member 12 can be fixed on the actuator head 50 through the at least one engaging portion 11.

Please refer to FIG. 2 and FIG. 3 , the positioning group 20 is disposed between the handle 40 and the actuator 50 and is combined with the rotation group 10. The positioning group 20 includes a coupling portion 21, a plurality of positioning portions 22 and an operating key 23. The coupling portion 21 is disposed on the handle 40 and adjacent to the coupling groove 41. The plurality of positioning portions 22 are disposed at intervals on the clamping member 12. When the actuator 50 rotates relative to the handle 40, the plurality of positioning portions 22 are disposed at intervals on the clamping member 12. The positioning parts 22 can rotate relative to the handle 40 along with the actuator 50 via the clamping member 12, so that one of the positioning parts 22 moves into the coupling part 21, and the operating key 23 can be movably coupled with the coupling part 21 and can be clamped and coupled with the positioning part 22 located in the coupling part 21, so that the actuator 50 can be positioned through the clamping relationship between the operating key 23 and one of the positioning parts 22 after rotating relative to the handle 40.

Furthermore, the coupling portion 21 is a through slot connected to the coupling slot 41, so that the plurality of positioning portions 22 on the actuator head 50 can enter the through slot through the coupling slot 41 and correspond to the operating key 23; preferably, each positioning portion 22 is a positioning protrusion disposed downward and surrounding the bottom surface of the clamping member 12, and the operating key 23 is inserted into the through slot. The side is provided with at least one positioning protrusion 231 which can be engaged with the positioning protrusion. Furthermore, the operation key 23 is provided with a push unit 232 at the bottom. The push unit 232 is located in the coupling portion 21 and pushes the operation key 23 to move upward, so that the positioning protrusion 231 of the operation key 23 is maintained to be engaged with the positioning protrusion moved into the coupling portion 21.

Furthermore, the operation key 23 is provided with a push plate 233 on the outer side, the push plate 233 shields the coupling portion 21 and abuts against the outer surface of the handle 40, so that the operation key 23 can move up and down relative to the coupling portion 21 along the outer surface of the handle 40; preferably, the positioning assembly 20 is provided with two guide portions 24, the two guide portions 24 are spaced apart and arranged on the outer surface of the handle 40 The push plate 233 is located between the two guide portions 24, so that when the operation key 23 moves relative to the combination portion 21 and the handle 40, the push plate 233 can move relative to the two guide portions 24, so that the positioning protrusion 231 of the operation key 23 can be accurately engaged with the positioning protrusion located in the combination portion 21.

Furthermore, the positioning assembly 20 is provided with a set rod 25 and a limit rod 26. The set rod 25 is longitudinally penetrated through the operation key 23 and combined with the handle 40. The push unit 232 is sleeved on the set rod 25 and pushes against the bottom of the operation key 23. The limit rod 26 is transversely penetrated through the top of the handle 40 and is located above the set rod 25 to prevent the set rod 25 from being separated from the operation key 23 through the top of the handle 40. Preferably, the push unit 232 can be an elastic member.

Please refer to FIG. 5, FIG. 6 and FIG. 7. When the rotary positioning device of the power tool of the present invention is used, when the user wants to adjust the angle of the actuator 50 relative to the handle 40, as shown in FIG. 5, the user pushes the push plate 233 downward with one hand, driving the operating key 23 to move downward along the sleeve rod 25 relative to the coupling portion 21 and compressing the push unit 232, so that the positioning protrusion 231 and the positioning protrusion located in the coupling portion 21 are aligned. The positioning portion 22 is separated from the positioning portion 22. At this time, the user can rotate the actuating head 50 relative to the handle 40 with the other hand as shown in FIG6, so that the actuating head 50 rotates to a desired angle. During the rotation process, the clamping member 12 rotates with the actuating head 50 via the at least one clamping portion 11. At this time, one of the positioning portions 22 located at the bottom of the clamping member 12 moves into the coupling portion 21. The user removes the push plate as shown in FIG7. 233, the compressed push unit 232 pushes the operation key 23 to move upward relative to the coupling portion 21, so that the positioning protrusion 231 and the positioning portion 22 moved into the coupling portion 21 are engaged with each other as shown in FIG. 4 and FIG. 5, providing a positioning effect. By arranging the rotating group 10 and the positioning group 20 between the handle 40 and the actuator head 50, the user can conveniently adjust the position of the actuator head 50 relative to the handle. The handle 40 can be used at any angle without being restricted by the surrounding environment or the state of the workpiece structure, so that the actuator head 50 can be stably combined with the handle 40 after rotation, and the actuator head 50 will not shake or rotate relative to the handle 40 due to vibration. This can not only improve the safety of using power tools, but also improve the operating quality of power tools, thereby providing a rotation positioning device for power tools that can adjust the angle and stably fix the position.

Please refer to FIG. 8 to FIG. 11 , a second preferred embodiment of the rotary positioning device of the power tool of the present invention is provided with a rotary assembly 10A and a positioning assembly 20A, the rotary assembly 10A is provided between the handle 40 and the actuator 50 and is provided with a plurality of engaging portions 11A and at least one engaging member 12A, the plurality of engaging portions 11A are provided at intervals at the top of the handle 40 and extend to the actuator 50. In the coupling groove 41, the at least one clamping member 12A is disposed on the actuator head 50. When the actuator head 50 is coupled with the handle 40, the at least one clamping member 12A can selectively be coupled with one of the engaging portions 11A, so that the actuator head 50 can be rotated relative to the handle 40 and the first stage of positioning can be performed through the clamping relationship between the at least one clamping member 12A and one of the engaging portions 11A.

Furthermore, each of the engaging portions 11A is an engaging groove, each of which is axially recessed at the top of the handle 40 and communicates with the coupling groove 41. Preferably, each of the engaging grooves has a semicircular cross-section, and the at least one engaging member 12A is radially retractable and arranged on the outer surface of the actuator head 50 and can extend into one of the engaging grooves, wherein the at least one engaging member 12A is provided with a receiving groove 121A, a bead 122A and a top member 123A, the receiving groove 121A is radially recessed at the outer surface of the actuator head 50, the bead 122A is movably arranged in the receiving groove 121A and can extend out of the receiving groove 121A and be engaged with one of the engaging grooves, the top member 123A is arranged in the receiving groove 121A and is engaged with the bead The bead 122A abuts against the bead 122A, and the bead 122A can be engaged with one of the engagement grooves by the push of the abutting member 123A; preferably, the rotating assembly 10A is provided with six engagement parts 11A, and the six engagement parts 11A are arranged at equal angles at intervals on the top of the handle 40, so that the actuator 50 can rotate relative to the handle 40 at an angle of 60 degrees; further, the positions of the plurality of engagement parts 11A and the at least one setting part 12A can be reversed, that is, the plurality of engagement parts 11A are arranged on the actuator 50, and the at least one setting part 12A is arranged on the handle 40. As long as the at least one setting part 12A can be engaged with one of the engagement parts 11A, it is within the scope of protection of the present invention.

Please refer to FIG. 9 and FIG. 10 , the positioning group 20A is disposed between the handle 40 and the actuator 50 and corresponds to the rotation group 10A. The positioning group 20A includes a coupling portion 21A, a plurality of positioning portions 22A and an operating key 23A. The coupling portion 21 is disposed on the handle 40 and adjacent to the coupling groove 41. The plurality of positioning portions 22A are disposed on the actuator 50 at intervals and are respectively aligned with the positions of the plurality of engaging portions 11A. Correspondingly, when the actuator 50 rotates relative to the handle 40, one of the positioning parts 22A can move into the coupling part 21A, and the operating key 23A can be movably coupled with the coupling part 21A and can be clamped and coupled with the positioning part 22A located in the coupling part 21A, so that the actuator 50 can be rotated relative to the handle 40 and the second stage of positioning can be performed through the clamping relationship between the operating key 23A and one of the positioning parts 22A.

Furthermore, the coupling portion 21A is a through slot connected to the coupling groove 41, so that the plurality of positioning portions 22A located on the actuator head 50 can enter the through slot through the coupling groove 41 and correspond to the operating key 23A; preferably, each positioning portion 22A is a positioning groove with an opening facing downward and axially recessed on the actuator head 50, and the operating key 23A is inserted into the inner side of the through slot. A positioning protrusion 231A is protruding upward and can be locked with the positioning groove. Furthermore, the operation key 23A is provided with a push unit 232A at the bottom. The push unit 232A is located in the coupling part 21A and pushes the operation key 23A to move upward, so that the positioning protrusion 231A of the operation key 23A is maintained and locked with the positioning groove moved to the coupling part 21A.

Furthermore, the operation key 23A is provided with a push plate 233A on the outer side, the push plate 233A covers the coupling portion 21A and abuts against the outer surface of the handle 40, so that the operation key 23A can move up and down relative to the coupling portion 21A along the outer surface of the handle 40; preferably, the positioning assembly 20A is provided with two guide portions 24A, and the two guide portions 24A are spaced apart on the outer surface of the handle 40. The push plate 233A is located between the two guide portions 24A, so that when the operation key 23A moves relative to the combination portion 21A and the handle 40, the push plate 233A can move relative to the two guide portions 24A, so that the positioning protrusion 231A of the operation key 23A can be accurately engaged with the positioning groove located in the combination portion 21A.

Furthermore, the positioning assembly 20A is provided with a set rod 25A and a limit rod 26A. The set rod 25A is longitudinally penetrated through the operation key 23A and combined with the handle 40. The push unit 232A is sleeved on the set rod 25A and pushes against the bottom of the operation key 23A. The limit rod 26A is transversely penetrated through the top of the handle 40 and is located above the set rod 25A, so as to Prevent the sleeve rod 25A from being separated from the operating key 23A through the top of the handle 40; preferably, the plurality of positioning parts 22A and the plurality of engaging parts 11A are respectively in line with each other; preferably, the positioning group 20A is provided with the same number of positioning parts 22A as the engaging parts 11A; preferably, the abutting member 123A and the pushing unit 232A can be respectively an elastic member.

Please refer to FIG. 12, FIG. 13 and FIG. 14. When the rotary positioning device of the power tool of the present invention is used, when the user wants to adjust the angle of the actuator 50 relative to the handle 40, as shown in FIG. 12, the user pushes the push plate 233A downward with one hand, driving the operating key 23A to move downward along the sleeve rod 25A relative to the coupling portion 21A and compressing the push unit 232A, so that the positioning protrusion 231A is separated from the positioning portion 22A located in the coupling portion 21A. At this time, the user can use another hand as shown in FIG. The actuator head 50 is rotated relative to the handle 40 by hand to rotate the actuator head 50 to the desired angle. During the rotation process, the bead 122A of the clamping member 12A partially retracts into the receiving groove 121A and presses against the abutment member 123A. When the clamping member 12A moves to the other clamping portion 11A as the actuator head 50 rotates, the compressed abutment member 123A pushes the bead 122A to move outward and clamps with the clamping portion 11A, providing the first stage of positioning effect. At this time, The positioning portion 22A which is in line with the engaging portion 11A will move into the engaging portion 21A. When the user removes the hand which is pushing the push plate 233A as shown in FIG. 14, the compressed pushing unit 232A will push the operating key 23A to move upward relative to the engaging portion 21A, so that the positioning protrusion 231A and the positioning portion 22A which has moved into the engaging portion 21A are engaged with each other as shown in FIG. 11, thereby providing the second stage of the positioning effect. By setting the rotating group 10A and the positioning group 20A between the handle 40 and the actuator head 50, The method allows the user to conveniently adjust the angle of the actuator head 50 relative to the handle 40 for use without being restricted by the surrounding environment or the state of the workpiece structure. The two-stage positioning operation allows the actuator head 50 to be stably combined with the handle 40 after rotation, and the actuator head 50 will not shake or rotate relative to the handle 40 due to vibration. This can not only improve the safety of using power tools, but also improve the operating quality of power tools, thereby providing a rotation positioning device for power tools that can adjust the angle and stably fix the position.

The above is only the preferred embodiment of the present invention and does not limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, within the scope of the technical solution proposed by the present invention, can make partial changes or modifications to the technical content disclosed by the present invention, and the equivalent embodiments that do not deviate from the technical solution content of the present invention are still within the scope of the technical solution of the present invention.

10: Rotation group

11: Snap-fit section

12: Card device

20: Positioning group

21: Junction

22: Positioning unit

23: Operation keys

231: Positioning bump

232: Push unit

233: Push board

24: Guidance Department

25: Set rod

26: Limit rod

40: Handle

41: Binding slot

42: Locking seat

50: Actuator head

Claims (10)

A rotary positioning device for a power tool is provided between a handle and an actuating head of the power tool, wherein the handle is provided with a coupling groove at the top, and the bottom of the actuating head is rotatably provided at the coupling groove of the handle. The rotary positioning device for the power tool comprises: a rotary group, which is provided between the handle and the actuating head and is provided with at least one engaging portion and a clamping member, wherein the at least one engaging portion is provided on the outer surface of the actuating head, and the clamping member is provided on the actuating head and is clamped and combined with the at least one engaging portion; and a positioning group, wherein the positioning group Located between the handle and the actuator and corresponding to the rotating group, the positioning group is provided with a coupling part, a plurality of positioning parts and an operating key. The coupling part is provided on the handle and adjacent to the coupling groove. The plurality of positioning parts are provided on the clamping part at intervals. When the actuator rotates relative to the handle, the plurality of positioning parts rotate relative to the handle along with the actuator through the clamping part, so that one of the positioning parts moves into the coupling part. The operating key can be movably coupled with the coupling part and can be clamped and coupled with the positioning part located in the coupling part. As described in claim 1, the rotation positioning device of the power tool, wherein each of the engaging portions is an engaging surface formed on the outer surface of the actuator, the engaging member is an annular body set on the actuator, and a engaging surface engaged with the at least one engaging portion is provided on the inner surface, so that the engaging member can be fixed on the actuator through the at least one engaging portion. As described in claim 2, the rotary positioning device of the power tool, wherein the coupling portion is a through slot connected to the coupling slot, so that the plurality of positioning portions located on the actuator head can enter the through slot through the coupling slot and correspond to the operating key. As described in claim 3, the rotational positioning device of the power tool, wherein each positioning portion is a positioning convex tooth disposed downward and surrounding the bottom surface of the clamping member, and the operating key is provided with at least one positioning convex block protruding upward on the inner side extending into the through slot and capable of being clamped with the positioning convex tooth. As described in claim 4, the rotary positioning device of the power tool, wherein the operating key is provided with a push unit at the bottom, the push unit is located in the coupling part and pushes the operating key to move upward, so that the positioning protrusion of the operating key is maintained to be engaged with the positioning protrusion moved into the coupling part. As described in claim 5, the rotary positioning device of the power tool, wherein the operating key is provided with a push plate protruding on the outer side, the push plate shields the coupling part and abuts against the outer surface of the handle, so that the operating key can move up and down relative to the coupling part along the outer surface of the handle; the positioning assembly is provided with two guide parts, the two guide parts are spaced apart on the outer surface of the handle and are respectively located on both sides of the coupling part, and the push plate is located between the two guide parts. As described in claim 6, the rotation positioning device of the power tool, wherein the positioning assembly is provided with a set rod and a limit rod, the set rod is longitudinally penetrated through the operating key and combined with the handle, the push unit is sleeved on the set rod and pushes against the bottom of the operating key, and the limit rod is transversely penetrated through the top of the handle and is located above the set rod, so as to prevent the set rod from being separated from the operating key through the top of the handle. A rotational positioning device for a power tool is provided between a handle and an actuating head of the power tool, wherein the handle is provided with a coupling groove at the top, and the bottom of the actuating head is rotatably provided at the coupling groove of the handle. The rotational positioning device for the power tool comprises: a rotational group, which is provided between the handle and the actuating head and is provided with a plurality of engaging parts and at least one engaging member, wherein the plurality of engaging parts are provided at intervals at the top of the handle and extend into the coupling groove, and the at least one engaging member is provided on the actuating head, and when the actuating head is coupled with the handle, the at least one engaging member can selectively and a positioning group, which is arranged between the handle and the actuating head and corresponds to the rotating group, and the positioning group is provided with a coupling part, a plurality of positioning parts and an operating key, the coupling part is arranged on the handle and adjacent to the coupling groove, the plurality of positioning parts are arranged on the actuating head at intervals and correspond to the positions of the plurality of coupling parts respectively, when the actuating head rotates relative to the handle, one of the positioning parts can move into the coupling part, the operating key can be movably coupled with the coupling part and can be coupled with the positioning part located in the coupling part. A rotational positioning device for a power tool as described in claim 8, wherein: each of the engaging portions is an engaging groove, each of the engaging grooves is axially recessed at the top of the handle and communicates with the coupling groove, and the at least one engaging member is radially retractably arranged on the outer surface of the actuator head and can extend into one of the engaging grooves; the at least one engaging member is provided with a receiving groove, a bead body and a top-butting member, the receiving groove is radially recessed at the outer surface of the actuator head, the bead body is movably arranged in the receiving groove and can extend out of the receiving groove to be engaged with one of the coupling grooves, The abutment is arranged in the receiving groove and abuts against the bead, and the bead can be engaged with one of the engaging grooves by the abutment; the engaging portion is a through groove connected to the engaging groove, so that the plurality of positioning portions on the actuator head can enter the through groove through the engaging groove and correspond to the operating key; and each positioning portion is a positioning groove with an opening facing downward and axially recessed on the actuator head, and the operating key is provided with a positioning protrusion upwardly protruding on the inner side extending into the through groove and can be engaged with the positioning groove. A rotational positioning device for a power tool as described in claim 9, wherein: the operating key is provided with a push unit at the bottom, the push unit is located in the coupling portion and pushes the operating key to move upward, so that the positioning protrusion of the operating key is maintained and engaged with the positioning groove moved into the coupling portion, and the operating key is provided with a push plate protruding on the outer side, the push plate covers the coupling portion and abuts against the outer surface of the handle, so that the operating key can move up and down relative to the coupling portion along the outer surface of the handle; and the positioning assembly There are two guide parts, a set rod and a limit rod. The two guide parts are arranged at intervals on the outer surface of the handle and are respectively located on both sides of the combination part, and the push plate is located between the two guide parts. The set rod is longitudinally penetrated through the operation key and combined with the handle. The push unit is sleeved on the set rod and pushes against the bottom of the operation key. The limit rod is transversely penetrated through the top of the handle and is located above the set rod to prevent the set rod from being separated from the operation key through the top of the handle.

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