Power tool capable of being locked safely and adjusted at multiple angles

Abstract

The utility model discloses a multi-angle adjusting power tool capable of being locked safely, which comprises a fixing part, an actuating group, a fixing seat and a rotating seat, the actuating group comprises a shell, a working part is arranged on the shell, a locking adjusting assembly is arranged between the fixing seat and the rotating seat, and the fixing part and the shell are connected through the fixing seat. The rotating seat is rotatably connected with the locking adjusting assembly, so that the shell and the holding part are fixed or the pitching angle between the shell and the holding part is rotatably adjusted, and the locking adjusting assembly comprises an adjusting piece, a locking piece, a first rotating piece, a second rotating piece, a connecting piece and an elastic piece. According to the power tool disclosed by the utility model, the shell or the holding part can be rotated and the multi-angle working direction of the working part on the shell can be adjusted only by pressing the adjusting piece, and then the adjusting piece is fixed and locked by rotating the locking piece, so that the working error and the safety problem caused by accidentally pressing the adjusting piece can be prevented; therefore, the power tool is suitable for being used under various environmental conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to power tool technical field, concretely is a kind of multi-angle adjustment's power tool of safe locking. BACKGROUND

[0002] There are many kinds of hand tools, for example but not limited to, wrench, pliers, hammer, pneumatic tool, electric tool and the like, in daily life or in processing factory, user can often see to be used to rotate screw, bolt, nut and various fasteners;Among them, power tool such as pneumatic tool, electric tool is preferred by user because it does not need user to drive by exerting force.

[0003] Among them, in order to meet the needs of different operation space and working angle, the working head and the grip part can be relatively rotated and adjusted power tool is developed.Generally speaking, the working head and the grip part of adjustable angle power tool are combined by shaft and nut, however, when the working angle needs to be adjusted, wrench or similar tool must be used to loosen or lock nut, which cannot be directly adjusted, which is very inconvenient, and affects working efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of multi-angle adjustment's power tool of safe locking to solve the problems existing in the above background technology.

[0005] In order to solve the above technical problem, the utility model realizes by the following technical scheme:

[0006] A kind of multi-angle adjustment's power tool of safe locking, including holding part, actuating group, fixed seat and rotating seat, the actuating group includes shell, the shell is provided with working part, fixed seat and rotating seat are provided with locking adjusting assembly, the holding part and shell are connected by fixed seat, rotating seat and locking adjusting assembly rotationally, make shell and holding part fixed or the rotation adjustment between two between pitch angle, the locking adjusting assembly includes adjusting piece, locking piece, first rotating piece, second rotating piece, connecting piece and elastic piece, by releasing or pressing adjusting piece make shell and holding part fixed or the rotation adjustment between two between pitch angle, by rotating locking piece make adjusting piece elastic expansion or fixed lock.

[0007] As preferred, the fixing seat is arranged at the upper end of the holding part, a through hole and a fixing groove are arranged on the fixing seat, the rotating seat is arranged at the lower end of the shell, a rotating groove is arranged on the rotating seat, the first rotating piece is arranged on the fixing groove, the second rotating piece is arranged on the rotating groove, one end of the connecting piece passes out from the second rotating piece and the first rotating piece in sequence, and abuts against the end of the adjusting piece inserted into the fixing groove, the other end of the connecting piece movably sleeves in the rotating groove, the elastic piece is located between the connecting piece and the rotating groove, the upper end of the locking piece rotatably sleeves on the connecting piece, the lower end of the locking piece passes out from the fixing seat and is connected with the outer wall of the holding part in a matched mode, and the first rotating piece is connected with or separated from the connecting piece by releasing or pressing the adjusting piece.

[0008] As preferred, the locking piece comprises a locking block and a pushing block, a baffle is further formed between the locking block and the pushing block, the lower end of the pushing block passes out from the holding part and is clamped on the holding part through the baffle, the locking block movably sleeves on the connecting piece, and the outer wall of the locking block is provided with limiting grooves arranged at intervals, and the inner wall of the adjusting piece is provided with limiting columns matched with the limiting grooves.

[0009] As preferred, the connecting piece comprises a connecting plate, a connecting head and a plurality of connecting columns are arranged on one side of the connecting plate, the connecting columns are arranged at intervals on the outer side of the connecting head, the outer end of the connecting head is formed with a recess, the locking piece rotatably sleeves on the recess, the elastic piece is located between the connecting plate and the rotating groove, the connecting head elastically moves along the second rotating piece and the first rotating piece, the first rotating piece and the second rotating piece are correspondingly and at intervals provided with connecting holes and connecting grooves, the connecting holes are matched with the connecting columns, and the connecting grooves are matched with the corresponding fixing grooves or rotating grooves.

[0010] As preferred, first clamping columns are arranged at intervals on the inner wall of the fixing groove, the first clamping columns are matched with the connecting grooves on the first rotating piece, the rotating groove is provided with a mounting groove for sleeving the connecting piece and a second clamping column for matched connection with the connecting groove on the second rotating piece, and the second clamping column is arranged at intervals on the outer side of the mounting groove.

[0011] As preferred, a recess is further arranged on the outer side of the holding part, the recess is communicated with the fixing groove to form a gap for the pushing block to extend into and rotate, two locking columns are arranged on the recess, and a locking groove connected with the locking columns is arranged on the pushing block.

[0012] As preferred, the fixing seat is arranged at the lower end of the shell, the fixing seat is provided with a through hole and a fixing groove, the rotating seat is arranged at the upper end of the holding part, the rotating seat is provided with a rotating groove, a hollow column is arranged in the rotating groove, the first rotating part is arranged on the fixing groove, the second rotating part is arranged on the rotating groove, one end of the connecting part passes out from the second rotating part and the first rotating part in sequence, and abuts against the one end of the adjusting part inserted into the fixing groove, the other end of the connecting part movably sleeves in the rotating groove, the other end of the adjusting part passes out the locking part, the locking part movably sleeves on the adjusting part, and the rotating surface of the locking part is located outside the holding part, the elastic part is located between the connecting part and the rotating seat, the first rotating part is connected with or separated from the connecting part by releasing or pressing the adjusting part, and the adjusting part is elastically expanded or fixedly locked by rotating the locking part.

[0013] As preferred, the adjusting part is provided with a clamping block and a sliding column, the sliding column movably sleeves in the hollow column, the locking part is provided with a limiting clamping groove for moving and locking the clamping block, and the rotating surface of the locking part is provided with a protrusion and an indication mark, the connecting part includes a connecting plate and a connecting head, the connecting plate movably locates in the rotating groove, the connecting plate is further provided with connecting columns at intervals, the connecting head sleeves outside the hollow column, the end of the clamping block abuts against the connecting head, the elastic part is located between the connecting plate and the rotating groove, the first rotating part and the second rotating part are correspondingly provided with connecting holes and connecting grooves at intervals, the connecting holes are connected with the connecting columns, and the connecting grooves are connected with the corresponding fixing grooves or rotating grooves, the connecting columns are connected with or separated from the first rotating part by pressing the adjusting part, so that the holding part is fixed relative to the shell or the pitch angle between the holding part and the shell is adjusted.

[0014] As preferred, the holding part includes a first handle and a second handle which are detachably spliced, the shell includes a first shell and a second shell which are detachably connected, and the first handle and the first shell and the second handle and the second shell are respectively connected through the fixing seat, the rotating seat and the locking and adjusting assembly.

[0015] As preferred, the first rotating part and the second rotating part are the same in structure, the lower end of the shell is further detachably sleeved with an extension rod, and the working part is fixedly connected to the shell or detachably connected to the shell, when the working part is detachably connected to the shell, the working part is a replaceable working head.

[0016] The utility model discloses a power tool, simple structure is through fixed seat, rotating seat and locking adjustment component and is connected, only need to press the adjusting piece, can rotate the shell or fixed holding part, adjust the multi -angle work direction of the working part on the shell, then again through the rotation locking piece, the adjusting piece is fixed and locked, can prevent accidental pressing adjusting piece and cause the work failure and safety problem, make the power tool suitable for a variety of environmental conditions and use, convenient operation and stable, improve the use availability, convenience and safety of power tool. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of example 1 in the utility model;

[0018] Figure 2 It is the structure schematic diagram of example 1 in the utility model;

[0019] Figure 3 It is Figure 1 The split structure schematic diagram of example 1 in the utility model;

[0020] Figure 4 It is the split structure schematic diagram between fixed holding part and elastic piece in example 1 in the utility model;

[0021] Figure 5 It is the split structure schematic diagram between fixed holding part, shell and adjustment component in example 1 in the utility model;

[0022] Figure 6 It is the split structure schematic diagram between fixed holding part and adjustment component in example 1 in the utility model;

[0023] Figure 7 It is the split structure schematic diagram of example 2 in the utility model;

[0024] Figure 8 It is the structure schematic diagram between locking piece and adjustment piece in example 2 in the utility model.

[0025] In the drawing: 1-fixed holding part;2-fixed seat;3-rotating seat;4-shell;5-working part;6-adjusting piece;7-locking piece;8-first rotating piece;9-second rotating piece;10-connecting piece;11-elastic piece;12-lock block;13-pushing block;14-baffle;15-limiting slot;16-limiting column;17-connecting plate;18-connecting head;19-connecting column;20-connecting hole;21-connecting slot;22-first clamping column;23-second clamping column;24-locking column;25-locking slot;26-hollow column;27-clamping block;28-sliding column;29-limiting clamping slot;30-protruding block;31-elongated rod. DETAILED DESCRIPTION

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] like Figures 1-6 As shown, a power tool with a securely lockable multi-angle adjustable design includes a holding part 1, an actuating assembly, a fixed base 2, and a rotating base 3. The actuating assembly includes a housing 4, on which a working part 5 is provided. A locking adjustment assembly is provided between the fixed base 2 and the rotating base 3. The holding part 1 and the housing 4 are rotatably connected via the fixed base 2, the rotating base 3, and the locking adjustment assembly, allowing the housing 4 and the holding part 1 to be fixed or rotated to adjust their pitch angle. The locking adjustment assembly includes an adjusting member 6, a locking member 7, a first rotating member 8, a second rotating member 9, a connecting member 10, and an elastic member 11. The fixed base 2 is located at the upper end of the holding part 1 and has a through hole and a fixing groove. The rotating base 3 is located at the lower end of the housing 4 and has a rotating groove. The first rotating member 8 is located in the fixing groove, and the second rotating member 9 is located in the rotating groove. One end of the connecting member 10 passes through the second rotating member 9 and the first rotating member 8 in sequence and connects with the adjusting member 6. 6. One end of the connector 10 is inserted into the fixed groove and pressed against it. The other end of the connector 10 is movably fitted into the rotating groove. The elastic element 11 is located between the connector 10 and the rotating groove. The locking element 7 includes a locking block 12 and a moving block 13. A baffle 14 is also formed between the locking block 12 and the moving block 13. The lower end of the moving block 13 extends out of the holding part 1 and is locked onto the holding part 1 by the baffle 14. The locking block 12 is movably fitted onto the connector 10, and limit grooves 15 are provided at intervals on the outer wall of the locking block 12. The inner wall of the component 6 is provided with a limiting post 16 that matches and connects to the limiting groove 15. The outer side of the holding part 1 is also provided with a groove. The groove communicates with the fixing groove to form a notch for the actuating block 13 to extend and rotate. Two locking posts 24 are provided on the groove. The actuating block 13 is provided with a locking groove 25 connected to the locking posts 24. By releasing or pressing the adjusting component 6, the first rotating component 8 is connected to or disengaged from the adjusting component 6. By rotating the locking component 7, the adjusting component 6 is elastically extended or locked.

[0029] In use, first press the lock slot 18 on the dial block 13 on the lock post 24 (the outer wall of the fixed seat is provided with unlocking and locking marks corresponding to the two lock posts 24, and a rotating arrow mark is also arranged between the two marks) under the unlocking mark, at this time, the limiting slot 15 on the locking piece 7 matches the limiting column 16 on the adjusting piece 6, press the adjusting piece 6, the adjusting piece 6 will force the connecting piece 10, so that the connecting piece 10 compresses the elastic piece 11, so that the connecting piece 10 moves to the direction of the rotating slot, so that the connecting piece 10 is separated from the first rotating piece 8, at this time, rotating the outer shell 4 can bring the second rotating piece 9 and the connecting piece 10 to rotate, that is, adjust the pitch angle of the working part 5 relative to the holding part 1, when the required position angle is adjusted, the adjusting piece 6 is released, under the action of the elastic piece 11, the connecting piece 10 rebounds in the opposite direction and is connected with the first rotating piece 8, the angle adjustment is completed, and finally the dial block 13 is separated from the lock post 24 and rotated to another lock post 24, at this time, the limiting slot 15 on the locking piece 7 and the limiting column 16 on the adjusting piece 6 are not corresponding, so that the elastic piece 6 cannot be pressed, and the locking of the adjusting assembly is realized.

[0030] The power tool designed above has simple structure, especially the design of the locking and adjusting assembly, which requires fewer accessories, has strong connection stability, is convenient to operate, can flexibly adjust the working angle of the power tool according to different use environments, and can lock the adjusting piece 6 through the locking piece 7, so that accidental force cannot press the adjusting piece 6, thereby improving the use stability, safety and convenience of the power tool.

[0031] Specifically, the connecting piece 10 includes a connecting plate 17, one side of the connecting plate 17 is protruded to form a connecting head 18 and a plurality of connecting columns 19, the connecting columns 19 are spaced apart on the outside of the connecting head 18, the outer end of the connecting head 18 is formed with a recess, the locking piece 7 is rotatably arranged on the recess, the elastic piece 11 is located between the connecting plate 17 and the rotating slot, the connecting head 18 elastically moves along the second rotating piece 9 and the first rotating piece 8, the first rotating piece 8 and the second rotating piece 9 are correspondingly and spaced apart provided with a connecting hole 20 and a connecting slot 21, the connecting hole 20 is matched and connected with the connecting column 19, and the connecting slot 21 is matched and connected with the corresponding fixed slot or rotating slot.

[0032] The structure design of the connecting piece 10 facilitates the stable matching of the connecting piece 10 in the rotating slot, facilitates the stable operation of the adjusting assembly, thereby improving the operation stability and use effectiveness of the product, the plurality of connecting columns 19 and the matched design of the connecting hole 20 on the rotating piece can improve the fixing effect after the angle adjustment, prevent the product from working incorrectly due to accidental disconnection, and the design of the connecting slot 21 facilitates the accurate and stable connection of the rotating piece.

[0033] Specifically, the inner wall of the fixing groove is provided with a first locking post 22 at intervals. The first locking post 22 is connected to the connecting groove 21 on the first rotating member 8. The rotating groove is provided with an installation groove for fitting the connecting member 10, and a second locking post 23 for connecting the connecting groove 21 on the second rotating member 9. The second locking post 23 is located at intervals on the outside of the installation groove.

[0034] The design of the first locking post 22 can improve the connection stability between the second rotating part 9 and the fixed groove, and the design of the second locking post 23 can improve the connection stability between the first rotating part 8 and the rotating groove. At the same time, in order to strengthen the connection of the rotating parts, screws can be added between the second rotating part 9 and the fixed groove, and between the first rotating part 8 and the rotating groove. Therefore, a stepped groove is also added at the connecting groove 21 through which the screw passes, for accommodating the screw head, so that the screw head sinks below the rotating plane of the rotating part to avoid rotational interference.

[0035] Example 2

[0036] like Figures 7-8 As shown, the fixing seat 2 is located at the lower end of the outer shell 4, and the fixing seat 2 is provided with a through hole and a fixing groove. The rotating seat 3 is located at the upper end of the holding part 1, and the rotating seat 3 is provided with a rotating groove. A hollow column 26 is raised in the rotating groove. The first rotating member 8 is provided on the fixing groove, and the second rotating member 9 is provided on the rotating groove. One end of the connecting member 10 passes through the second rotating member 9 and the first rotating member 8 in sequence, and abuts against the end of the adjusting member 6 that extends into the fixing groove. The other end of the connecting member 10 is movably sleeved in the rotating groove. The other end of the adjusting member 6 passes through the locking member 7, and the locking member 7 is movably sleeved on the adjusting member 6. The rotating surface of the locking member 7 is located on the outside of the holding part 1. The adjusting member 6 is provided with a locking block 27 and a sliding column 28. The sliding column 28 is movably sleeved in the hollow column 26. The locking member 7 is provided with a mechanism for moving the locking block 27. The locking and locking limit slot 29 is provided, and the rotating surface of the locking member 7 is provided with a protrusion 30 and an indicator mark. The connecting member 10 includes a connecting plate 17 and a connecting head 18. The connecting plate 17 is movably located in the rotating groove. The connecting plate 17 is also provided with connecting posts 19 at intervals. The connecting head 18 is sleeved on the outside of the hollow post 26. The end of the locking block 27 abuts against the connecting head 18. The elastic member 11 is located between the connecting plate 17 and the rotating groove. The first rotating member 8 and the second rotating member 9 are provided with connecting holes 20 and connecting grooves 21 at intervals. The connecting holes 20 are connected to the connecting posts 19. The connecting grooves 21 are connected to the corresponding fixed grooves or rotating grooves. The first rotating member 8 is connected to or disengaged from the connecting member 10 by releasing or pressing the adjusting member 6. The adjusting member 6 is elastically extended or locked by rotating the locking member 7.

[0037] In use, first press the protrusion 30 on the locking member 7, rotate the locking member 7 to the unlocking mark (the rotating surface is provided with unlocking and locking marks, and a rotating arrow mark is further provided between the two marks), at this time, the clamping block 27 on the adjusting member 6 can pass through the limiting groove 29 on the locking member 7, press the adjusting member 6, the slide column 28 on the adjusting member 6 will move along the hollow column 26 in the rotating groove, the clamping block 27 will extrude the connecting member 10, the connecting member 10 will compress the elastic member 11, move in the direction of the rotating groove, the connecting column 19 on the connecting member 10 will be separated from the first rotating member 8, at this time, rotating the holding part 1 can bring the second rotating member 9 and the connecting member 10 to rotate, that is, adjust the pitch angle of the working part 5 relative to the holding part 1, when the required position angle is reached, release the adjusting member 6, under the action of the elastic member 11, the connecting member 10 will rebound in the opposite direction and be connected with the first rotating member 8, complete the angle adjustment and fixation, finally rotate the locking member 7 to the locking mark, at this time, the clamping block 27 on the adjusting member 6 is clamped on the limiting groove 29 on the locking member 7, so that the adjusting member 6 cannot be pressed inwards, realizing the locking of the adjusting assembly.

[0038] The power tool designed above, compared with embodiment 1, exchanges the positions of the fixing seat 2 and the rotating seat 3, adjusts the working angle of the working head by rotating the holding part 1, at the same time, applies different structures of the rotating seat 3, the adjusting member 6 and the locking member 7, realizes the power tool with multiple locking structures, can be flexibly selected according to the use demand of customers, and moreover, the locking member 7 can also lock the adjusting member 6, so that accidental force extruding the adjusting member 6 can be avoided, the stability, safety and convenience of the power tool are improved.

[0039] Specifically, the holding part 1 includes a first handle and a second handle which can be detachably spliced, the shell 4 includes a first shell and a second shell which can be detachably connected, the first handle and the first shell, and the second handle and the second shell are respectively rotatably connected through the fixing seat 2, the rotating seat 3 and the locking adjusting assembly. The above design divides the holding part 1 and the shell 4 into two parts which can be detachably connected, facilitates the installation and replacement of accessories, at the same time, the symmetrical operation of the two positions can make the adjustment operation and fixed use operation of the power tool more stable and accurate.

[0040] Specifically, the first rotating member 8 and the second rotating member 9 are identical in structure, the lower end of the shell 4 is further detachably sleeved with an extension rod 31, and the working part 5 is fixedly connected to the shell 4 or detachably connected to the shell 4, wherein, when detachably connected to the shell 4, the working part 5 is a replaceable working head. The above design has the advantages that the structures of the two rotating members are designed to be identical, facilitating the machining and use of the rotating members with the same mold and reducing machining cost; the flexible installation of the extension rod 31 enables the power tool to be more conveniently used for high-altitude operation; and the connection structure of the working part 5 and the shell 4 can be flexibly selected according to actual conditions, achieving multi-head operation of the same tool.

[0041] The above is only the preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious change made by using the content of the present application should be included in the protection scope of the present application.

Claims

1. A power tool with a securely lockable, multi-angle adjustable design, comprising a holding part, an actuating assembly, a fixed base, and a rotating base, wherein the actuating assembly includes a housing, a working part is disposed on the housing, a locking adjustment assembly is disposed between the fixed base and the rotating base, and the holding part and the housing are rotatably connected via the fixed base, the rotating base, and the locking adjustment assembly, characterized in that: The locking adjusting assembly comprises an adjusting piece, a locking piece, a first rotating piece, a second rotating piece, a connecting piece and an elastic piece, the adjusting piece is released or pressed to fix or rotationally adjust the pitch angle between the shell and the holding part, and the locking piece is rotated to elastically stretch or fix the adjusting piece.

2. A safely lockable multi-angle adjustable power tool according to claim 1, characterized in that: The fixing seat is arranged at the upper end of the holding part, the fixing seat is provided with a through hole and a fixing groove, the rotating seat is arranged at the lower end of the shell, the rotating seat is provided with a rotating groove, the first rotating piece is arranged on the fixing groove, the second rotating piece is arranged on the rotating groove, one end of the connecting piece passes out from the second rotating piece and the first rotating piece in sequence, and abuts against one end of the adjusting piece inserted into the fixing groove, the other end of the connecting piece movably sleeves in the rotating groove, the elastic piece is located between the connecting piece and the rotating groove, the upper end of the locking piece rotatably sleeves on the connecting piece, the lower end of the locking piece passes out from the fixing seat and is connected with the outer wall of the holding part, and the first rotating piece is connected with or separated from the connecting piece by releasing or pressing the adjusting piece.

3. A safely lockable multi-angle adjustable power tool according to claim 2, characterized in that: The locking piece comprises a locking block and a pushing block, a baffle is further formed between the locking block and the pushing block, the lower end of the pushing block passes out from the holding part and is clamped on the holding part through the baffle, the locking block movably sleeves on the connecting piece, and the outer wall of the locking block is provided with limiting grooves at intervals, and the inner wall of the adjusting piece is provided with limiting columns matched with the limiting grooves.

4. A safely lockable multi-angle adjustable power tool according to claim 3, characterized in that: The connecting piece comprises a connecting plate, a connecting head and a plurality of connecting columns are formed on one side of the connecting plate and protrude, the connecting columns are arranged at intervals on the outer side of the connecting head, the outer end of the connecting head is formed with a recess, the locking piece rotatably sleeves on the recess, the elastic piece is located between the connecting plate and the rotating groove, the connecting head elastically moves along the second rotating piece and the first rotating piece, the first rotating piece and the second rotating piece are correspondingly and intermittently provided with connecting holes and connecting grooves, the connecting holes are matched and connected with the connecting columns, and the connecting grooves are matched and connected with the corresponding fixing grooves or rotating grooves.

5. A safely lockable multi-angle adjustable power tool according to claim 4, characterized in that: First clamping columns are arranged at intervals on the inner wall of the fixing groove and protrude, the first clamping columns are matched and connected with the connecting grooves on the first rotating piece, the rotating groove is provided with a mounting groove for sleeving the connecting piece and a second clamping column for matched connection with the connecting grooves on the second rotating piece, and the second clamping column is arranged at intervals on the outer side of the mounting groove.

6. A safely lockable multi-angle adjustable power tool according to claim 5, characterized in that: The outer side of the holding part is further provided with a recess, the recess is communicated with the fixing groove to form a gap for the pushing block to enter and rotate, two locking columns are arranged on the recess, and a locking groove matched with the locking columns is arranged on the pushing block.

7. The safely lockable, multi-angle adjustable power tool of claim 1, wherein: The fixed seat is arranged at the lower end of the shell, and a through hole and a fixed groove are arranged on the fixed seat; the rotating seat is arranged at the upper end of the holding part, and a rotating groove is arranged on the rotating seat, and a hollow column is arranged in the rotating groove; the first rotating part is arranged on the fixed groove, and the second rotating part is arranged on the rotating groove; one end of the connecting part passes out from the second rotating part and the first rotating part in sequence, and abuts against the other end of the adjusting part which extends into the fixed groove; the other end of the connecting part movably sleeves in the rotating groove; the other end of the adjusting part passes out the locking part; the locking part movably sleeves on the adjusting part, and the rotating surface of the locking part is located outside the holding part; and the elastic part is located between the connecting part and the rotating seat.

8. A safely lockable multi-angle adjustable power tool according to claim 7, characterized in that: The adjusting part is provided with a clamping block and a sliding column, and the sliding column movably sleeves in the hollow column; the locking part is provided with a limiting clamping groove for movement and locking of the clamping block, and the rotating surface of the locking part is provided with a protruding block and an indication mark; the connecting part comprises a connecting plate and a connecting head; the connecting plate movably locates in the rotating groove; the connecting plate is further provided with connecting columns at intervals; the connecting head sleeves outside the hollow column; the end of the clamping block abuts against the connecting head; the elastic part is located between the connecting plate and the rotating groove; the first rotating part and the second rotating part are correspondingly provided with connecting holes and connecting grooves at intervals; the connecting holes are connected with the connecting columns; and the connecting grooves are connected with the corresponding fixed grooves or rotating grooves.

9. A safely lockable multi-angle adjustable power tool according to claim 6 or 8, characterized in that: The holding part comprises a first handle and a second handle which are detachably spliced; the shell comprises a first shell and a second shell which are detachably connected; the first handle and the first shell, and the second handle and the second shell are respectively connected by the fixed seat, the rotating seat and the locking and adjusting assembly.

10. The safely lockable, multi-angle adjustable power tool of claim 1, wherein: The first rotating part and the second rotating part are the same in structure; the lower end of the shell is further detachably sleeved with an extension rod; and the working part is fixedly connected with the shell, or is detachably connected with the shell. When the working part is detachably connected with the shell, the working part is a replaceable working head.

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