TWI790183B - Angle-adjustable power tools - Google Patents

Abstract

The present invention is an angle-adjustable power tool, which includes a handle, an actuating head and a positioning group. The handle is provided with a clamping seat and a clamping plate. Facing the actuating head, there is a communicating groove and a fixing groove, the clamping disk is set in the fixing groove of the clamping seat, the actuating head is rotatably combined with the handle and is provided with a pivot seat and a head, the pivoting seat is arranged at the bottom of the actuating head and is rotatably combined with the handle, so that the clamping seat and the clamping plate are located between the handle and the pivoting seat, and the positioning assembly is arranged on A positioning seat, an elastic member, an abutting seat and a triggering member are arranged between the handle and the actuating head, so as to provide an angle-adjustable power tool with a simplified structure, accurate positioning and cost saving.

Description

Angle-adjustable power tools

The invention relates to a power tool, in particular to an angle-adjustable power tool with simple structure, accurate positioning and cost saving.

Existing power tools can be driven by electricity or gas to process workpieces. Existing power tools are provided with a handle and an actuating head combined with the handle. When the user holds the handle and uses the actuating head to When the workpiece is processed, if the relative position between the user and the workpiece cannot be processed through the actuator, it will increase the inconvenience in use. Therefore, it is currently installed between the handle and the actuator of the existing power tool. A pivoting device is used to adjust the angle of the actuating head relative to the handle through the pivoting device, so that the user can process the workpiece at an appropriate angle.

However, although existing power tools can adjust the angle between the actuating head and the handle by arranging the pivoting device to achieve the effect of convenient use, the pivoting device located between the actuating head and the handle lacks The structure can be stably positioned, so that the angle-adjusted actuator may swing relative to the handle during processing, which is likely to cause damage to the workpiece and endanger work safety. Furthermore, if the existing power tools are operated with gas When driving, in order to accurately transmit the gas to the actuating head through the handle and the pivoting device, the existing power tool must be provided with a complex shape and difficult-to-process gas between the handle, the pivoting device and the actuating head. The flow channel relatively increases the cost and time required for manufacturing. To sum up, the existing power tools have some points to be improved.

In order to solve the problem that after adjusting the angle of the actuating head in the existing power tools, the actuating head will easily swing relative to the handle during processing, and a complex-shaped and difficult-to-process gas flow channel is provided between the handle, the pivoting device, and the actuating head , increase the cost and time required for manufacturing and other problems and deficiencies, the present invention provides an angle-adjustable power tool, which is mainly to set an automatically resettable positioning group between the handle and the actuating head, so that the actuating After adjusting the angle, the head can be firmly combined with the handle, and through the arrangement of space and structure, a streamlined flow channel is formed between the handle and the actuating head, so as to provide a simple structure, accurate positioning and Cost-saving power tool with adjustable angle.

Based on the above purpose, the present invention is to provide an angle-adjustable power tool, which is provided with a handle, an actuating head and a positioning group, wherein: the handle is provided with a clamping seat and a clamping plate, the clamping The seat is fixed on the top of the handle and is provided with a communication groove and a fixing groove, the fixing groove communicates with the communication groove and faces the actuating head, and the clamping plate is arranged in the fixing groove of the clamping seat ; The actuating head is pivotally combined with the handle and is provided with a pivot seat and a head, the pivot seat is arranged at the bottom of the actuating head and is rotatably pivotally combined with the handle, so that The clamping seat and the clamping plate are arranged between the handle and the pivot seat; and the positioning group is arranged between the handle and the actuating head, so as to fix the angle of the actuating head relative to the handle, the The positioning group is provided with a positioning seat, an elastic member, an abutting seat and a pulling member. The positioning seat is rotatably and movably arranged between the handle and the pivot seat, and can be selectively connected with the clamping seat. The disk is clamped and combined, the elastic member is set in the communication groove of the clamping seat and abuts against the positioning seat, pushes against the positioning seat and is clamped with the clamping plate, and the abutting seat is arranged on the handle It is away from the outer surface of the pivoting seat and is fixed to the clamping seat and abuts against the elastic member. The triggering member is combined with the positioning seat and rotatably abuts against the abutting seat; wherein when the When the triggering member rotates relative to the abutting seat, it will drive the positioning seat to separate from the clamping plate and compress the elastic member, and the rotation of the pivoting seat relative to the handle can adjust the position of the actuating head relative to the handle. Angle, and after adjustment, through the compressed elastic member, the positioning seat moves toward the clamping plate and is locked with it for positioning.

Further, as the above-mentioned angle-adjustable power tool, wherein the abutting seat is provided with at least one sliding slot on the outer surface, and the side surface of the pulling member facing the abutting seat is provided with at least one protrusion, and the at least one The protrusion can be selectively arranged in the at least one sliding slot or abut against the outer surface of the abutting seat, so that the positioning seat can move relative to the locking plate as the pulling member rotates.

Still further, as the above-mentioned angle-adjustable power tool, wherein the positioning seat is provided with a connecting head and a positioning plate, the connecting head is arranged at one end of the positioning seat and is fixedly combined with the pivoting seat, the positioning plate The positioning plate is arranged in the middle section of the positioning seat and combined with the connecting head. The positioning plate is movably set in the communication groove of the clamping seat and is clamped and combined with the clamping plate.

Preferably, as the aforementioned angle-adjustable power tool, wherein the clamping plate is provided with several clamping units, the several clamping units are formed on the side of the clamping plate facing the handle, and the positioning plate A positioning structure is provided on the side facing the clamping disc with the clamping units, and the positioning structure can be clamped and combined with each clamping unit of the clamping disc.

Preferably, as the above-mentioned angle-adjustable power tool, wherein the positioning structure of the positioning disc is a helical gear, and each locking unit of the clamping disc is a helical gear meshed with the helical gear. tooth structure.

Preferably, the angle-adjustable power tool described above, wherein the clamping disc is provided with at least one air hole, and the at least one vent hole axially passes through the clamping disc and the plurality of clamping units and is connected to the communication groove Pass.

Preferably, the angle-adjustable power tool described above, wherein the handle is provided with a receiving groove and a pivoting groove, the receiving groove transversely runs through the top of the handle and faces the actuating head, the pivot The rotating groove is recessed laterally on the top of the handle and communicated with the accommodating groove, the engaging seat is arranged in the pivoting groove, and the elastic member is arranged between the pivoting groove and the communicating groove.

Preferably, the angle-adjustable power tool as mentioned above, wherein: the handle is provided with a coupling head, the accommodating groove and the pivoting groove are formed on the coupling head, and the coupling head is located at the center of the pivoting groove A communication air groove is longitudinally arranged at the bottom, and the communication air groove communicates with the pivot groove and the bottom of the joint head; The bottom of the bottom is radially recessed with a groove that communicates with the communication groove and the communication air groove; The side of the pivot seat facing the coupling head is recessed in the transverse direction, and the part of the engaging seat protruding from the coupling head is accommodated in the coupling groove.

With the above-mentioned technical features, when the angle-adjustable power tool of the present invention is in use, only by rotating the wrench relative to the abutting seat, the positioning seat can be driven to move relative to the bonding head, so that the The positioning structure of the positioning disc is separated from each clamping unit of the clamping disc, so that the positioning seat is no longer limited by the clamping of the clamping disc, and the user can rotate the actuating head according to his needs to change its relative position to the clamping disc. The angle of the handle, and after the angle is adjusted, the compressed elastic member can automatically push against the positioning seat and move away from the bonding head, so that the positioning plate and the clamping plate are locked together, and the card can be passed through Set the structural relationship between the plate, the positioning seat, the abutting seat and the triggering member, stably and accurately position the angle of the actuator head relative to the handle, and avoid the occurrence of the actuator head relative to the handle during processing. Swing, causing damage to the workpiece and endangering industrial safety; and setting the communication groove, the at least one communication hole, the ring groove and the pivot seat by setting the communication groove on the joint head, the clamping seat The airway is set so that the high-pressure gas entering through the housing can enter the head of the actuating head through the communication groove, communication groove, perforation and the airway of the simplified structure configuration, so as to drive the head to the workpiece For processing, there is no need to set up gas channels with complex shapes and difficult processing, which can effectively reduce the cost and time required for manufacturing; The communication groove, the perforation and the air passage enter into the head, and, except through the elastic member In addition to pushing against the positioning plate and the clamping plate for positioning, the high-pressure gas entering the joint head through the communication gas groove and the communication groove can also be pushed against the positioning plate and the clamping plate to be firmly fixed for clamping. The angle-adjustable power tool of the present invention can be used by combining the actuating head firmly with the handle before and after rotation, thereby providing an angle-adjustable power tool with a simplified structure, accurate positioning, and cost savings .

10: handle

11: storage tank

12: Pivot slot

13: card seat

131: Locking piece

132: Connecting slot

133: Groove

134: fixed slot

14: card setting disk

141: perforation

142: card setting unit

143: ventilation hole

15: Combined head

151: Connected air groove

20: Actuating head

21: Pivot seat

211: combination slot

212: Set hole

213: airway

22: head

30: Positioning group

31: positioning seat

32: Elastic parts

33: abutment seat

331: sliding card slot

34: Wrench

341: convex part

35: connector

351: Fixing hole

352:Fixer

36: Positioning plate

361: Positioning structure

d: gap

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

Fig. 2 is another perspective view of the preferred embodiment of the present invention.

Fig. 3 is a three-dimensional exploded view of a part of a preferred embodiment of the present invention.

Fig. 4 is an exploded perspective view of another part of the preferred embodiment of the present invention.

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

Fig. 6 is a cross-sectional side view of a preferred embodiment of the present invention along the section line A-A of Fig. 5 .

Fig. 7 is a sectional side view of a preferred embodiment of the present invention along the section line B-B of Fig. 5 .

Fig. 8 is a schematic diagram of the operation of the cross-sectional side view of adjusting the angle of the preferred embodiment of the present invention (rotated).

Fig. 9 is a schematic view (rotated) of the angle adjustment operation in the preferred embodiment of the present invention.

Fig. 10 is a top sectional view of a preferred embodiment of the present invention after angle adjustment.

Fig. 11 is a perspective cross-sectional view of a preferred embodiment of the present invention after angle adjustment.

In order to understand the technical characteristics and practical effects of the present invention in detail, and to realize them according to the contents of the specification, the preferred embodiments shown in the drawings are further described in detail as follows: The present invention is an angle-adjustable power tool, and its preferred embodiment is shown in Fig. 1 to Fig. 4, which includes a handle 10, an actuating head 20 and a positioning group 30, wherein: Fig. 1 to Fig. 4, the handle 10 is provided with an accommodating groove 11, a pivoting groove 12, a clamping seat 13 and a clamping plate 14, the accommodating groove 11 runs through the top of the handle 10 transversely and faces the For the actuating head 20, the pivoting groove 12 is recessed laterally on the top of the handle 10 and communicates with the accommodating groove 11. Preferably, the inner diameter of the pivoting groove 12 is larger than the inner diameter of the accommodating groove 11 diameter, so that a step is formed between the pivoting groove 12 and the receiving groove 11, further, the handle 10 is provided with a joint head 15, and the receiving groove 11 and the pivoting groove 12 are formed on the joint head 15 On, preferably, the joint head 15 of the handle 10 is combined with a casing (not shown) at the bottom, and can be connected with a high-pressure air source through the casing, as shown in Fig. 4 and Fig. 5, the joint head 15 is longitudinally provided with a communication air groove 151 below the pivot groove 12, and the communication air groove 151 communicates with the pivot groove 12 and the bottom of the joint head 15, so that the high-pressure gas source can be used as As shown in FIG. 5 , it enters the pivoting slot 12 through the bottom of the coupling head 15 , the communicating air slot 151 and the accommodating slot 11 .

The clamping seat 13 is set in the pivot groove 12 and protrudes from the joint head 15. Preferably, the clamping seat 13 is provided with several locking pieces 131 passing through the joint head 15. The locking member 131 is fixedly combined with the coupling head 15, and the engaging seat 13 is recessed with a communication groove 132 on the side facing the pivoting groove 12. A groove 133 communicated with the communicating groove 132 and the communicating air groove 151 is radially recessed at the bottom of the side surface, and a groove 133 communicated with the communicating groove 132 is recessed on the other side of the locking seat 13 away from the pivoting groove 12 . The fixed groove 134 communicates axially, and the inner diameter of the fixed groove 134 is smaller than the inner diameter of the communicating groove 132 , so that an annular step is formed between the fixing groove 134 and the communicating groove 132 .

The clamping disc 14 is fixedly combined with the clamping seat 13 and is located in the fixing groove 134. Further, the clamping disc 14 and the clamping seat 13 can be separated or integrally formed, and will not be described here. Limitation, the clamping disc 14 is provided with a perforation 141, several clamping units 142 and at least one vent hole 143, wherein the perforation 141 axially penetrates the clamping disc 14 and communicates with the communication groove 132 through the fixing groove 134 , The plurality of locking units 142 are formed on the side of the locking plate 14 facing the pivot groove 12 at intervals and surround the through hole 141. Preferably, each locking unit 142 is A tooth portion, the at least one vent hole 143 axially passes through the clamping plate 14 and the plurality of clamping units 142 to communicate with the communication groove 132, preferably, the clamping plate 14 is provided with several 141 provides ventilation holes 143 .

As shown in Figures 3 and 4, the actuating head 20 is pivotally combined with the handle 10, the actuating head 20 is provided with a pivot seat 21 and a head 22, the pivot seat 21 is located on the The bottom of the actuating head 20 is an annular structure. The pivot base 21 is rotatably combined with the joint head 15 of the handle 10. The pivot base 21 is provided with a joint groove 211 and a set of holes 212. and an air passage 213, the coupling groove 211 is recessed laterally on the side of the pivot seat 21 facing the coupling head 15, and the part of the clamping seat 13 protruding from the coupling head 15 is accommodated in the coupling groove 211, The clamping seat 13 is arranged between the pivot groove 12 of the coupling head 15 and the coupling groove 211 of the pivot base 21 , wherein as shown in FIG. 5 , when the pivot base 21 is combined with the coupling head 15 There is a gap d between the inner surface of the pivot base 21 and the inner surface of the coupling head 15, and the sleeve hole 212 is recessed on the outer surface of the pivot base 21 away from the coupling head 15 and connected to the coupling groove. 211, preferably, the sleeve hole 212 is a polygonal hole, the air channel 213 is formed longitudinally inside the pivot seat 21 and connects with at least one air hole 143 of the clamping plate 14 through the coupling groove 211 The head 22 is arranged on the top of the actuating head 20 and is connected with the pivot seat 21. The head 22 is provided with components such as a cylinder, a rotor, and a steering assembly. The aforementioned components are the same as those of the prior art, and here Not to be described, wherein the air channel 213 communicates with the interior of the head 22 .

As shown in Figure 3, Figure 4 and Figure 5, the positioning group 30 is located between the handle 10 and the operating head 20, so as to fix the angle of the operating head 20 relative to the handle 10, the positioning group 30 is provided with a Positioning seat 31, an elastic member 32, an abutting seat 33 and a triggering member 34, the positioning seat 31 is rotatably and movably arranged on the coupling head 15 of the handle 10 and the pivoting seat 21 of the actuating head 20 between, and can be selectively clamped and combined with the clamping plate 14, the positioning seat 31 is provided with a connecting head 35 and a positioning plate 36, the connecting head 35 is arranged at one end of the positioning seat 31 and pivots with the The sleeve hole 212 of the seat 21 is combined so that the positioning seat 31 can follow the connection The joint 35 rotates together with the pivot base 21. The joint 35 is provided with a fixing hole 351 and a fixing piece 352. The fixing hole 351 is axially recessed in the connecting head 35. The side of 21 away from the coupling head 15 is fixedly combined with the fixing hole 351 through the sleeve hole 212 , so that the positioning seat 31 is fixedly combined with the pivoting seat 21 through the connecting head 35 .

The positioning disc 36 is located at the middle section of the positioning seat 31 and combined with the connecting head 35. The positioning disc 36 is movably arranged in the communication groove 132 of the clamping seat 13. The positioning disc 36 faces the card A positioning structure 361 is provided on one side of the setting plate 14 provided with several locking units 142, and the positioning structure 361 can be combined with each locking unit 142 of the locking plate 14. Preferably, the positioning structure 361 It is a gear that meshes with each of the tooth parts. Preferably, as shown in FIG. The part is a helical tooth structure meshed with the helical gear, through the meshing mode of the helical gear and the helical tooth structure, not only can the structural strength and stability of the clamping combination of the positioning plate 36 and the clamping plate 14 be improved, but also reduce the The backlash between the helical gear and the helical tooth structure enables accurate clamping.

As shown in FIG. 2 to FIG. 5 , the other end of the positioning seat 31 away from the connecting head 35 protrudes from the coupling head 15 through the communication groove 132 of the engaging seat 13 , the pivoting groove 12 and the accommodating groove 11 . outside, and the elastic member 32 is set in the communication groove 132 of the clamping seat 13 and sleeved on the outer surface of the positioning seat 31, one end of the elastic member 32 abuts against the positioning plate 36 and pushes against the positioning plate 36 is locked and combined with the locking plate 14, and the other end of the elastic member 32 is extended to the receiving groove 11; as shown in Figure 3, Figure 4 and Figure 5, the abutting seat 33 is located on the The joint head 15 is away from the outer surface of the pivot seat 21, and the abutting seat 33 is fixedly combined with the locking seat 13 via the plurality of locking members 131, and is located on the joint head 15 and is connected to the elastic member 32. One end abuts against each other, and the abutting seat 33 is provided with at least one sliding slot 331 on the outer surface. Preferably, the abutting seat 33 is provided with several annular sliding slots 331 arranged at intervals.

The triggering member 34 is combined with the positioning seat 31 via the coupling head 15 and rotatably abuts against the abutting seat 33 , and at least one protrusion is provided on a side of the abutting member 34 facing the abutting seat 33 . department 341, the at least one protrusion 341 can be selectively arranged in the at least one sliding slot 331 or abut against the outer surface of the abutting seat 33, so that the positioning seat 31 is relatively The clamping plate 14 moves, so that the positioning plate 36 is separated from the clamping plate 14, and at the same time, the pivoting seat 21 is driven towards the coupling head 15 through the positioning seat 31, that is, the pivoting seat 21 and the connecting head 15 are narrowed. The gap d between the bonding heads 15.

Please refer to FIG. 5 and FIG. 8 , when the angle-adjustable power tool of the present invention is in use, when the user wants to adjust the angle of the actuating head 20 relative to the handle 10, it is by turning the trigger member 34 Rotate relative to the abutting seat 33, so that the at least one protrusion 341 breaks away from the at least one sliding slot 331 with the rotation of the wrench 34, and abuts against the outer surface of the abutting seat 33, so that the wrench The movable part 34 moves outward relative to the coupling head 15. At this time, the positioning seat 31 fixedly combined with the triggering part 34 will move relative to the coupling head 15 and the pivot seat 21 as the triggering part 34 moves. Move, so that the positioning structure 361 of the positioning plate 36 is separated from each locking unit 142 of the clamping plate 14, and compress the elastic member 32 between the positioning plate 36 and the abutting seat 33, due to the positioning Seat 31 is no longer limited by the clamping of clamping plate 14. At this time, as shown in FIG. The seat 21 is fixedly combined with the positioning seat 31, so that the pivoting seat 21 can rotate relative to the joint head 15 due to the movement of the positioning seat 31, so that the actuating head 20 is relatively to the handle as shown in Figure 8 10 moves to the left to narrow the gap d between the pivotal seat 21 and the coupling head 15 .

As shown in FIG. 10 , after the actuating head 20 is rotated to a desired angle, the user can rotate the trigger member 34 to move the at least one protrusion 341 from the outer surface of the abutting seat 33 to the at least one Slide the slot 331, at this time, the compressed elastic member 32 will push against the positioning plate 36, so that the positioning seat 31 moves away from the bonding head 15, so that the positioning structure 361 of the positioning plate 36 is aligned with the card. Each locking unit 142 of the setting plate 14 is locked in phase, and then through the structural relationship between the locking plate 14, the positioning seat 31, the abutting seat 33 and the pulling member 34, the positioning of the locking plate 14 can be stably and accurately positioned. The angle of the actuating head 20 relative to the handle 10 prevents the actuating head 20 from swinging relative to the handle 10 during processing, causing damage to the workpiece and endangering work safety. Opposite to the positioning seat 31 The handle 10 moves, so the actuating head 20 can stably rotate relative to the handle 10 during the process of adjusting the swing angle.

Further, please refer to FIG. 3 to FIG. 7 , the angle-adjustable power tool of the present invention is provided with the communicating air groove 151 through the joint head 15, the communicating groove 132 provided on the clamping seat 13, and the at least one The perforation 141 and the way of the air passage 213 on the pivot seat 21 allow the high-pressure gas entering through the casing to enter the action through the communication air groove 151, the communication groove 132, the perforation 141 and the air passage 213 which are simplified in structure. The head 22 of the head 20 is used to drive the head 22 to process the workpiece, without the need to set a gas flow channel with a complex shape and difficult to process, which can effectively reduce the cost and time required for manufacturing; and when the actuating head 20 is relatively the handle After the handle 10 is rotated, it can still enter the head 22 through the communicating air groove 151, the communicating groove 132, the perforation 141 and the air channel 213 as shown in FIG. In addition to pushing against the positioning plate 36 and the clamping plate 14 for positioning, the high-pressure gas entering the coupling head 15 through the communicating air groove 151 and the communicating groove 132 can also push against the positioning plate 36 and the clamping plate 14 is firmly fixed and clamped, so that the adjustable angle power tool of the present invention can allow the actuating head 20 to be firmly combined with the handle 10 before and after rotation, so as to provide a simple structure, accurate positioning and Cost-saving power tool with adjustable angle.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Anyone with ordinary knowledge in the technical field can use the present invention within the scope of the technical solution proposed in the present invention. Equivalent embodiments with partial changes or modifications made in the disclosed technical content, and without departing from the technical solution content of the present invention, all still fall within the scope of the technical solution of the present invention.

10: handle

15: Combined head

20: Actuating head

21: Pivot seat

22: head

33: abutment seat

34: Wrench

Claims (10)

A power tool with adjustable angle, which includes a handle, an actuating head and a positioning group, wherein: The handle is provided with a clamping seat and a clamping plate, the clamping seat is fixed on the top of the handle and is provided with a communication groove and a fixing groove, the fixing groove communicates with the communication groove and faces the actuating head, the clamping plate is set in the fixing groove of the clamping seat; The actuating head is pivotably combined with the handle and is provided with a pivot seat and a head. The pivot seat is arranged at the bottom of the actuating head and is rotatably pivotally combined with the handle so that the The clamping seat and the clamping plate are arranged between the handle and the pivotal seat; and The positioning group is arranged between the handle and the actuating head to fix the angle of the actuating head relative to the handle. The positioning group is provided with a positioning seat, an elastic member, an abutting seat and a pulling member. The positioning seat is rotatably and movably arranged between the handle and the pivot seat, and can be selectively engaged with the clamping plate. The elastic member is provided in the communication groove of the clamping seat and is connected to The positioning seat abuts against, pushes against the positioning seat and the clamping plate, and the abutting seat is arranged on the outer surface of the handle away from the pivot seat and is fixed with the clamping seat and is connected with the elastic member abut against, the triggering member is combined with the positioning seat and rotatably abuts against the abutting seat; Wherein, when the triggering member rotates relative to the abutting seat, it will drive the positioning seat to separate from the clamping plate and compress the elastic member, and the rotation of the pivoting seat relative to the handle can adjust the movement of the actuating head relative to the handle. The angle of the handle, and after adjustment, through the compressed elastic member, the positioning seat moves toward the clamping plate and is locked with it for positioning. The angle-adjustable power tool as described in claim 1, wherein the abutting seat is provided with at least one sliding slot on the outer surface, and the side of the pulling member facing the abutting seat is provided with at least one protrusion, the At least one protrusion can be selectively disposed in the at least one sliding slot or abut against the outer surface of the abutting seat, so that the positioning seat can move relative to the locking plate as the pulling member rotates. The angle-adjustable power tool as described in claim 1 or 2, wherein the positioning seat is provided with a connecting head and a positioning plate, the connecting head is arranged at one end of the positioning seat and is fixedly combined with the pivoting seat, The positioning disc is arranged at the middle section of the positioning seat and combined with the connecting head. The positioning disc is movably arranged in the communication groove of the clamping seat and is clamped and combined with the clamping disc. The angle-adjustable power tool as described in claim 3, wherein the clamping plate is provided with several clamping units, and the several clamping units are formed on the side of the clamping plate facing the handle, and the positioning plate is A positioning structure is provided on the side facing the clamping disc with the clamping units, and the positioning structure can be clamped and combined with each clamping unit of the clamping disc. The angle-adjustable power tool as described in claim 4, wherein the positioning structure of the positioning disc is a helical gear, and each clamping unit of the clamping disc is a helical tooth meshing with the helical gear structure. The angle-adjustable power tool as described in claim 5, wherein the clamping disc is provided with at least one air hole, and the at least one vent hole axially passes through the clamping disc and the plurality of clamping units and communicates with the communication groove . The angle-adjustable power tool as described in claim 1 or 2, wherein the handle is provided with a receiving groove and a pivoting groove, the receiving groove runs through the top of the handle and faces the actuating head, the The pivoting groove is recessed laterally on the top of the handle and communicated with the accommodating groove, the locking seat is arranged in the pivoting groove, and the elastic member is arranged between the pivoting groove and the communicating groove. The angle-adjustable power tool as described in Claim 7, wherein: The handle is provided with a coupling head, the accommodating groove and the pivoting groove are formed on the coupling head, the coupling head is longitudinally provided with a communicating air groove below the pivoting groove, the communicating air groove and the pivoting groove and the bottom of the joint head; The clamping seat is fixedly combined with the coupling head, and a groove communicating with the communication groove and the communication air groove is radially recessed at the bottom of the side of the clamping seat facing the pivot groove; and The pivot seat is rotatably combined with the joint head of the handle and is provided with a joint groove. The joint groove is laterally recessed on the side of the pivot seat facing the joint head. A part of the combination head is accommodated in the combination groove. The angle-adjustable power tool as described in Claim 1, wherein the clamping plate is provided with several clamping units, and the several clamping units are formed on the side of the clamping plate facing the handle, and the positioning seat is A positioning structure is provided on the side facing the clamping disc with the clamping units, and the positioning structure can be clamped and combined with each clamping unit of the clamping disc. The angle-adjustable power tool as described in claim 9, wherein the positioning structure of the positioning seat is a helical gear, and each locking unit of the clamping disc is a helical tooth meshing with the helical gear structure.

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