Electric tool

Abstract

The utility model belongs to the technical field of electric tools, in particular to an electric tool, which comprises an electric tool main body and a switch assembly arranged on the electric tool main body, the switch assembly comprises a button and a lock knob, one end of the button is hinged with the electric tool main body, the middle end of the lock knob is rotatably arranged on the button, and the other end of the lock knob is hinged with the electric tool main body. The inner end of the lock knob extends into the electric tool body, the outer end of the lock knob extends out of the electric tool body, a connecting groove is formed in the electric tool body, a limiting portion is arranged in the connecting groove, the inner end of the lock knob abuts against the limiting portion, and the lock knob is driven to rotate relative to the button so that the inner end of the lock knob can be driven to be disengaged from abutting against the limiting portion. A connecting part is further arranged in the connecting groove, a clamping hook part is arranged at the inner end of the lock knob in a protruding mode, after the lock knob is driven to rotate, the clamping hook part on the lock knob rotates to the connecting part, the button is loosened, at the moment, the clamping hook part on the lock knob is connected with the connecting part in a hooked mode, resetting of the button is limited, and the electric tool is simple in structure and has the back locking function and the self-locking function.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric tools, in particular to an electric tool. Background Art

[0002] Electric tools are commonly used in daily life, such as electric wrenches, electric drills, angle grinders, etc. Currently, all electric tools on the market are designed with a switch to start, and the functions of the switches of such electric tools are relatively simple, either with an anti-locking function but no self-locking function, or with a self-locking function but no anti-locking function, which poses a safety hazard to users due to accidental operation. Therefore, there is a need for an electric tool with both anti-locking and self-locking functions. Summary of the invention

[0003] The utility model aims to provide an electric tool with a simple structure and both reverse locking and self-locking functions.

[0004] The purpose of the utility model is achieved in this way:

[0005] An electric tool comprises an electric tool body and a switch assembly arranged on the electric tool body, the switch assembly comprises a button and a lock button, one end of the button is hinged to the electric tool body, the middle end of the lock button is rotatably arranged on the button, the inner end of the lock button extends into the electric tool body, and the outer end extends out of the electric tool body, a connecting groove is provided in the electric tool body, a limiting portion is provided in the connecting groove, the inner end of the lock button abuts against the limiting portion, and driving the lock button to rotate relative to the button can drive the inner end of the lock button to disengage from the abutment with the limiting portion, a connecting portion is also provided in the connecting groove, and a hook portion is convexly provided at the inner end of the lock button. After the lock button is driven to rotate, the hook portion on the lock button rotates to the connecting portion, and the button is released. At this time, the hook portion on the lock button is hooked with the connecting portion and limits the reset of the button.

[0006] Furthermore, a rotating hole is opened in the middle of the lock button, a rotating shaft is arranged in the rotating hole, the lock button is rotatably connected to the button through the rotating shaft, a torsion spring is also arranged on the rotating shaft, one end of the torsion spring abuts against the button, and the other end abuts against the lock button.

[0007] Furthermore, a U-shaped groove is provided in the middle of the button, a rotating shaft is provided in the U-shaped groove, and the lock button is rotatably connected to the button via the rotating shaft.

[0008] Furthermore, a blocking portion is convexly provided in the U-shaped groove, and the blocking portion is respectively arranged on the inner walls on both sides of the U-shaped groove and limits the separation of the rotating shaft.

[0009] Furthermore, a limiting platform is provided on the power tool body, and an abutting end is protruded from one end of the button, and the abutting end abuts against the limiting platform and limits the button from being separated from the power tool body.

[0010] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0011] The utility model discloses an electric tool, comprising an electric tool body and a switch assembly arranged on the electric tool body, the switch assembly comprising a button and a lock button, one end of the button is hinged to the electric tool body, the middle end of the lock button is rotatably arranged on the button, the inner end of the lock button extends into the electric tool body, and the outer end extends out of the electric tool body, a connecting groove is arranged in the electric tool body, a limiting part is arranged in the connecting groove, the inner end of the lock button abuts against the limiting part, driving the lock button to rotate relative to the button can drive the inner end of the lock button to break away from the abutment with the limiting part, a connecting part is also arranged in the connecting groove, a hook part is convexly arranged at the inner end of the lock button, after the lock button is driven to rotate, the hook part on the lock button rotates to the connecting part, the button is released, at this time the hook part on the lock button is hooked with the connecting part and limits the reset of the button, the electric tools currently on the market are too single in switch function, or the design The utility model has both self-locking and anti-locking functions, and has stronger functionality. It improves the practicality and safety of workers. By setting a limiting portion in the connecting groove in the electric tool body, the inner end of the lock button cannot move against the limiting portion, the user cannot start it, and there is no possibility of accidental touch, thus completing self-locking and greatly improving safety. When the user needs to use it, he needs to push the lock button to rotate first so that the inner end of the lock button rotates out of the limiting portion. At this time, the inner end of the lock button is released from the restriction, the button can be pressed, and the lock button continues to be rotated. At this time, the inner end of the lock button rotates to the connecting portion, and a hook portion is provided at the inner end of the lock button. When the hook portion comes to the connecting portion, the hook portion is hooked with the connecting portion. At this time, the user does not need to manually press the button all the time and can continue to work, thus completing the anti-locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a stereogram of the utility model.

[0013] Figure 2 It is a cross-sectional view of the self-locking of the utility model.

[0014] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0015] Figure 4 It is a cross-sectional view of the utility model when locked.

[0016] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle.

[0017] Figure 6 This is a separation diagram of the electric tool body and the switch assembly of the utility model.

[0018] Figure 7It is an exploded view of the switch assembly of the utility model.

[0019] Figure 8 It is a side view of the lock button of the utility model.

[0020] The meaning of the symbols in the figure:

[0021] 1-power tool body; 2-switch assembly; 3-button; 4-lock button; 5-connection slot; 6-limiting part; 7-connecting part; 8-hook part; 10-rotating shaft; 11-U-shaped slot; 12-blocking part; 13-limiting platform;

[0022] 14-butting end. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with specific embodiments:

[0024] A power tool comprises a power tool body 1 and a switch assembly 2 arranged on the power tool body 1, the switch assembly 2 comprises a button 3 and a lock button 4, one end of the button 3 is hinged to the power tool body 1, the middle end of the lock button 4 is rotatably arranged on the button 3, the inner end of the lock button 4 extends into the power tool body 1, and the outer end extends out of the power tool body 1, a connecting groove 5 is provided in the power tool body 1, a limiting portion 6 is provided in the connecting groove 5, the inner end of the lock button 4 abuts against the limiting portion 6, driving the lock button 4 to rotate relative to the button 3 can drive the inner end of the lock button 4 to break away from the abutment with the limiting portion 6, a connecting portion 7 is also provided in the connecting groove 5, a hook portion 8 is convexly provided at the inner end of the lock button 4, after the lock button 4 is driven to rotate, the hook portion 8 on the lock button 4 rotates to the connecting portion 7, and the button 3 is released. At this time, the hook portion 8 on the lock button 4 is hooked with the connecting portion 7 and limits the reset of the button 3.

[0025] The utility model discloses an electric tool, comprising an electric tool body 1 and a switch assembly 2 arranged on the electric tool body 1, wherein the switch assembly 2 comprises a button 3 and a lock button 4, wherein one end of the button 3 is hinged to the electric tool body 1, and the middle end of the lock button 4 is rotatably arranged on the button 3, the inner end of the lock button 4 extends into the electric tool body 1, and the outer end extends out of the electric tool body 1, wherein a connecting groove 5 is arranged in the electric tool body 1, and a limiting portion 6 is arranged in the connecting groove 5, and the inner end of the lock button 4 abuts against the limiting portion 6, and the lock button 4 is driven to rotate relative to the button 3 so as to drive the inner end of the lock button 4 to be separated from the abutment with the limiting portion 6, and a connecting portion 7 is also arranged in the connecting groove 5, and a hook portion 8 is convexly arranged at the inner end of the lock button 4, and after the lock button 4 is driven to rotate, the hook portion 8 on the lock button 4 rotates to the connecting portion 7, and the button 3 is released, at which time the hook portion 8 on the lock button 4 is hooked with the connecting portion 7 and limits the reset of the button 3, and the electric tools currently on the market have too many problems in terms of switch function. In the single, either the anti-locking function is designed but the self-locking function is not, or the self-locking function is designed but the anti-locking function is not. The utility model is provided with both self-locking and anti-locking, which is more functional and improves the practicality and safety for workers. By providing a limiting portion 6 in the connecting groove 5 in the electric tool body 1, the inner end of the lock button 4 abuts against the limiting portion 6 and cannot move, the user cannot start it, and there is no possibility of accidental touch, thus completing self-locking and greatly improving safety. When the user needs to use it, he needs to first push the lock button 4 to rotate so that the inner end of the lock button 4 rotates out of the limiting portion 6. At this time, the inner end of the lock button 4 releases the restriction, the button 3 can be pressed, and the lock button 4 continues to be rotated. At this time, the inner end of the lock button 4 rotates to the connecting portion 7, and the inner end of the lock button 4 is provided with a hook portion 8. When the hook portion 8 comes to the connecting portion 7, the hook portion 8 is hooked with the connecting portion 7. At this time, the user does not need to manually press the button 3 all the time and can continue to work to complete the anti-locking.

[0026] Preferably, a rotating hole is opened in the middle of the lock button 4, and a rotating shaft 10 is arranged in the rotating hole. The lock button 4 is rotationally connected with the button 3 through the rotating shaft 10. A torsion spring is also arranged on the rotating shaft 10. One end of the torsion spring abuts against the button 3, and the other end abuts against the lock button 4. The rotation mode of the lock button 4 and the button 3 of the utility model is rotationally connected through the rotating shaft 10. Driving the lock button 4 can be equivalent to rotating the button 3 through the rotating shaft 10. When the hook portion 8 at the inner end of the lock button 4 is hooked with the connecting portion 7, the user releases his fingers and the torsion spring will push the button 3 to rebound.

[0027] Preferably, a U-shaped groove 11 is opened in the middle of the button 3, and a rotating shaft 10 is arranged in the U-shaped groove 11. The lock button 4 is rotatably connected to the button 3 through the rotating shaft 10, which is convenient for manufacturers to assemble, and the detachable connection is convenient for replacing the rotating shaft 10.

[0028] Preferably, a blocking portion 12 is convexly provided in the U-shaped groove 11, and the blocking portion 12 is respectively arranged on the inner walls on both sides of the U-shaped groove 11 and limits the detachment of the rotating shaft 10 to prevent the rotating shaft 10 from detaching from the U-shaped groove 11. The protruding U-shaped groove 11 can effectively block the movement of the rotating shaft 10. During disassembly, the user only needs to overcome the blocking force, but the force of the torsion spring cannot cause the rotating shaft 10 to detach from the U-shaped groove 11.

[0029] Preferably, a limiting platform 13 is further provided on the power tool body 1 , and an abutment end 14 is protruding from one end of the button 3 , the abutment end 14 abuts against the limiting platform 13 and limits the button 3 from detaching from the power tool body 1 , thereby preventing the button 3 from detaching from the power tool body 1 .

[0030] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric tool, comprising an electric tool body (1) and a switch assembly (2) arranged on the electric tool body (1), characterized in that: The switch assembly (2) comprises a button (3) and a lock button (4); one end of the button (3) is hinged to the electric tool body (1); the middle end of the lock button (4) is rotatably arranged on the button (3); the inner end of the lock button (4) extends into the electric tool body (1); the outer end of the lock button (4) extends out of the electric tool body (1); a connecting groove (5) is provided in the electric tool body (1); a limiting portion (6) is provided in the connecting groove (5); the inner end of the lock button (4) abuts against the limiting portion (6) ), the lock button (4) is driven to rotate relative to the button (3) so that the inner end of the lock button (4) can be driven to disengage from the contact with the limiting portion (6); a connecting portion (7) is further provided in the connecting groove (5); a hook portion (8) is convexly provided at the inner end of the lock button (4); after the lock button (4) is driven to rotate, the hook portion (8) on the lock button (4) rotates to the connecting portion (7), and the button (3) is released. At this time, the hook portion (8) on the lock button (4) is hooked with the connecting portion (7) and limits the reset of the button (3).

2. The electric tool according to claim 1, characterized in that: A rotation hole is provided in the middle of the lock button (4), a rotation shaft (10) is provided in the rotation hole, the lock button (4) is rotationally connected to the button (3) via the rotation shaft (10), a torsion spring is also provided on the rotation shaft (10), one end of the torsion spring abuts against the button (3), and the other end abuts against the lock button (4).

3. The electric tool according to claim 1, characterized in that: A U-shaped groove (11) is provided in the middle of the button (3), a rotating shaft (10) is provided in the U-shaped groove (11), and the lock button (4) is rotatably connected to the button (3) via the rotating shaft (10).

4. The electric tool according to claim 3, characterized in that: A blocking portion (12) is convexly provided inside the U-shaped groove (11), and the blocking portion (12) is respectively arranged on the inner walls on both sides of the U-shaped groove (11) and restricts the rotation shaft (10) from detaching.

5. The electric tool according to claim 1, characterized in that: A limiting platform (13) is also provided on the electric tool body (1), and an abutment end (14) is protruding from one end of the button (3); the abutment end (14) abuts against the limiting platform (13) and limits the button (3) from being separated from the electric tool body (1).

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