A switch button assembly of a power tool

Abstract

The utility model discloses a switch button subassembly of electric tool, including mounting bracket, be provided with the engagement mechanism on the mounting bracket, the engagement mechanism includes the joint sleeve, slide hole, arc rod, card block, push sleeve, card pipe and card slot, the joint sleeve is installed on the mounting bracket, the slide hole is provided with multiple groups distribution on the joint sleeve, the arc rod slides in multiple the slide hole, the card block is installed in multiple the arc rod bottom, the push sleeve is set in the joint sleeve, the card block is set in the joint sleeve, the card slot is provided with multiple groups distribution in the card pipe outer wall, the joint sleeve outer wall is provided with locking mechanism, the locking mechanism includes transmission sleeve, lock block, lock hole, rotation sleeve, gear ring, side block, screw rod, gear and positioning mechanism, and the design of joint sleeve, slide hole and arc rod is used to the reliable joint of button rod and card pipe through the cooperation of the sliding of arc rod and card block and card slot.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric tool technical field, more specifically, it relates to a switch button subassembly of electric tool. BACKGROUND

[0002] In the use process of electric tool, the switch button is the frequently operated component, bears the important function of starting and closing the tool, however, since the switch button is usually exposed in the external environment, after long time use, dust, sludge and other impurities are easy to enter the inside through the gap between the button and the shell, gradually accumulate in the assembly, this not only can affect the flexibility of the button, still can lead to poor contact, influence the normal operation of electric tool;

[0003] In addition, the switch button subassembly in the prior art adopts the fixed type mounting structure, and the dismounting process is complicated, usually needs to use the special tool, and can take down the button after dismounting multiple components, this design not only increases the maintenance difficulty, still can cause the assembly damage or assembly not in place due to improper operation in the dismounting process, further influence the tool nature. UTILITY MODEL CONTENT

[0004] (I) the technical problem solved

[0005] In view of the problems in the prior art, the utility model provides a switch button subassembly of electric tool to solve the technical problem mentioned in the background art.

[0006] (II) technical scheme

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a switch button subassembly of electric tool, including mounting frame, the mounting frame is provided with clamping mechanism, the clamping mechanism includes clamping sleeve, sliding hole, arc rod, clamping block, push sleeve, clamping pipe and clamping groove, the clamping sleeve is installed on the mounting frame, the sliding hole is provided with multiple groups distributed on the clamping sleeve, the arc rod slides in multiple groups sliding hole, the clamping block is installed at the bottom end of multiple groups arc rod, the push sleeve is arranged in the clamping sleeve, the clamping block is arranged in the clamping sleeve, the clamping groove is provided with multiple groups distributed on the outer wall of clamping pipe, the outer wall of clamping sleeve is provided with locking mechanism, the locking mechanism includes transmission sleeve, lock block, lock hole, rotating sleeve, gear ring, side block, screw rod, gear and positioning mechanism, the transmission sleeve is slidably installed on the outer wall of clamping sleeve, the lock block is provided with multiple groups installed on the top surface of transmission sleeve, the lock hole is arranged on multiple groups arc rod, the rotating sleeve is rotatably installed on the outer wall of clamping sleeve, the gear ring is installed on the rotating sleeve, the side block is provided with multiple groups installed on the outer wall of clamping sleeve, the screw rod is rotatably installed on multiple groups side block, and the gear is installed at the bottom end of multiple groups screw rod and is engaged with gear ring.

[0008] The utility model further sets up, button rod outer wall is equipped with limit strip, limit strip is equipped with multiple groups all with card pipe sliding connection, and the sliding connection design of limit strip and card pipe effectively improves the operation stability of button rod, avoids the abnormality of jamming or friction caused by deviation, prolongs the service life of button subassembly.

[0009] The utility model further sets up, button rod outer wall is equipped with limit strip, limit strip is equipped with multiple groups all with card pipe sliding connection, and the sliding connection design of limit strip and card pipe effectively improves the operation stability of button rod, avoids the abnormality of jamming or friction caused by deviation, prolongs the service life of button subassembly.

[0010] The utility model further sets up, multiple the slide hole lateral wall all are equipped with side groove, multiple the arc rod outer wall all are equipped with side strip, multiple the side strip all slide in side groove, and the design of side strip and side groove ensures the stability of arc rod sliding, reduces the error in mechanical structure operation, improves the precision and reliability of clamping mechanism.

[0011] The utility model further sets up, multiple the arc rod top all are equipped with top block, multiple the top block and the inner wall of card joint cover all are connected and equipped with compression spring, and the elastic reset function of compression spring provides reliable reset power for arc rod, guarantees the self-resetting ability of clamping mechanism, makes structure can recover initial state after dismounting, simplifies the operation step.

[0012] The utility model further sets up, the push cover and the inner top of card joint cover are connected and equipped with return spring, the return spring is equipped with multiple groups, and the design of return spring provides automatic reset ability for push cover, improves the operation flexibility of device, ensures that push cover can recover initial state quickly in the process of dismounting, improves the stability and operation efficiency of overall structure.

[0013] The utility model further sets up, the inner wall of card joint cover is equipped with positioning strip, the outer wall of card pipe is equipped with positioning groove, the positioning strip and positioning groove all are equipped with multiple groups and are connected slidingly, and the design of positioning strip and positioning groove effectively prevents the inclination and deviation of card pipe, enhances the operation stability when installing and dismounting, improves the operation precision of whole button subassembly.

[0014] The utility model further sets up, the positioning mechanism includes fixed block, fixed slot, tension spring, lock sleeve and unlocking slot, the fixed block is equipped with multiple groups and is installed slidingly on rotating sleeve, the fixed slot is equipped with multiple groups and is distributed on the outer wall of card joint cover, the tension spring is installed on the top of multiple fixed blocks and is connected with the outer wall of rotating sleeve, the unlocking slot is equipped with multiple groups and is distributed on the lock sleeve, and the positioning mechanism realizes the reset function of fixed block by the cooperation of fixed block and fixed slot and the elastic force of tension spring.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the present invention provides a switch button assembly for power tools, which has the following advantages:

[0017] 1. The locking mechanism, through the design of the locking sleeve, sliding hole, and arc-shaped rod, utilizes the sliding of the arc-shaped rod and the cooperation of the locking block and the locking groove to achieve reliable locking between the button rod and the locking tube. The side groove on the side wall of the sliding hole cooperates with the side strip on the outer wall of the arc-shaped rod to ensure the guiding effect when the arc-shaped rod slides, avoiding offset during the locking process. At the same time, the combination of the top block and the compression spring provides a reset function, which can quickly drive the arc-shaped rod to reset in the unlocked state, improving the efficiency of locking and disassembly operations. The overall design ensures the installation stability and disassembly convenience of the button rod, and is suitable for repeated operations.

[0018] 2. The locking mechanism achieves precise operation of the locking block through the linkage of the transmission sleeve, gear ring, and gear. The meshing transmission of the gear ring and gear can smoothly drive the locking block to insert or withdraw from the locking hole on the arc rod, realizing the locking or unlocking control of the arc rod. The threaded engagement between the screw and the transmission sleeve further provides stability for longitudinal movement, ensuring that there will be no loosening or jamming during locking or unlocking. The overall design allows the button rod to remain stable during operation, while facilitating quick release of the locking state during disassembly. The operation is simple and reliable.

[0019] 3. The positioning mechanism uses the cooperation between the fixed block and the fixed groove, and the elasticity of the tension spring to realize the reset function of the fixed block. When the locking sleeve rotates, it can push the fixed block into the fixed groove to lock the rotating sleeve, ensuring that the locking mechanism will not shift or loosen during operation. When unlocking is required, the movement of the unlocking groove can quickly release the fixed block, and the tension spring makes the fixed block disengage from the fixed groove and return to a free state. The overall design ensures the positioning accuracy of the locking mechanism, while also having the flexibility of repeated operation, further improving the operational reliability of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a switch button assembly for an electric tool according to the present invention;

[0021] Figure 2 This is a cross-sectional view of the tube clamp in this utility model;

[0022] Figure 3 This is a cross-sectional view of the locking mechanism in this utility model;

[0023] Figure 4 This is a cross-sectional view of the snap-fit ​​sleeve in this utility model;

[0024] Figure 5 This is a cross-sectional view of the rotating sleeve in this utility model;

[0025] Figure 6 It is the structural schematic view of the arc-shaped rod in the utility model.

[0026] In the figure: 1, mounting frame; 2, clamping sleeve; 3, sliding hole; 4, arc-shaped rod; 5, clamping block; 6, push sleeve; 7, clamping pipe; 8, clamping groove; 9, transmission sleeve; 10, locking block; 11, locking hole; 12, rotating sleeve; 13, gear ring; 14, side block; 15, screw; 16, gear; 17, button rod; 18, return spring; 19, limiting strip; 20, side groove; 21, side strip; 22, top block; 23, compression spring; 24, return spring; 25, positioning strip; 26, positioning groove; 27, fixed block; 28, fixed groove; 29, tension spring; 30, locking sleeve; 31, unlocking groove. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0029] In the utility model, unless otherwise stated, the orientation such as "up, down" used is usually for the direction shown in the drawings, or for the vertical, perpendicular or gravity direction; Similarly, for the convenience of understanding and description, "left, right" is usually for the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0030] Please refer to Figures 1-5The utility model provides a switch button assembly of electric tool, including mounting frame 1, be provided with clamping mechanism on mounting frame 1, and clamping mechanism includes clamping sleeve 2, slide hole 3, arc rod 4, clamping block 5, push sleeve 6, clamping pipe 7 and clamping groove 8, clamping sleeve 2 is installed on mounting frame 1, slide hole 3 is provided with multiple groups of distribution on clamping sleeve 2, arc rod 4 slides in multiple groups of slide hole 3, clamping block 5 is installed at the bottom end of multiple groups of arc rod 4, push sleeve 6 is arranged in clamping sleeve 2, clamping block 5 is arranged in clamping sleeve 2, clamping groove 8 is provided with multiple groups of distribution on the outer wall of clamping pipe 7, the outer wall of clamping sleeve 2 is provided with locking mechanism, and locking mechanism includes transmission sleeve 9, lock block 10, lock hole 11, rotary sleeve 12, gear ring 13, side block 14, screw 15, gear 16 and positioning mechanism, transmission sleeve 9 is slidably installed on the outer wall of clamping sleeve 2, lock block 10 is provided with multiple groups of installation on the top surface of transmission sleeve 9, lock hole 11 is arranged on multiple groups of arc rod 4, rotary sleeve 12 is rotatably installed on the outer wall of clamping sleeve 2, gear ring 13 is installed on rotary sleeve 12, side block 14 is provided with multiple groups of installation on the outer wall of clamping sleeve 2, screw 15 is rotatably installed on multiple groups of side block 14, and gear 16 is installed at the bottom end of multiple groups of screw 15 and is engaged with gear ring 13.

[0031] Button rod 17 is slidably arranged in clamping pipe 7, reset spring 18 is connected between button rod 17 and the inner bottom surface of clamping pipe 7, when button rod 17 is pressed, reset spring 18 is compressed to store elastic potential energy, when the pressing force is released, reset spring 18 releases the elastic potential energy to push button rod 17 to reset to the initial position.

[0032] Limiting strip 19 is arranged on the outer wall of button rod 17, and the limiting strip 19 is provided with multiple groups of sliding connection with the clamping pipe 7, the limiting strip 19 provides sliding guide for the button rod 17 in the clamping pipe 7, ensures the button rod 17 to move along the predetermined direction, and prevents the button rod 17 from deviating or tilting.

[0033] The side wall of multiple groups of slide holes 3 is provided with side groove 20, the outer wall of multiple groups of arc rods 4 is provided with side strip 21, multiple groups of side strips 21 are slidably arranged in the side grooves 20, and the side strip 21 provides guiding action in the side groove 20, so that the arc rod 4 stably slides along the slide hole 3, and swinging or tilting of the arc rod 4 in the movement process is avoided.

[0034] Multiple groups of arc rods 4 are provided with top block 22, and multiple groups of top blocks 22 are connected with the inner wall of clamping sleeve 2 through compression spring 23, when the top block 22 is pressed, the compression spring 23 is compressed to store elastic force, when the pressure is released, the compression spring 23 releases the elastic force to push the top block 22 to reset, and drives the arc rod 4 to return to the initial position.

[0035] Return spring 24 is connected between push sleeve 6 and the inner top surface of clamping sleeve 2, and the return spring 24 is provided with multiple groups, the push sleeve 6 compresses the return spring 24 under the action of pressing force, after the pressing force is released, the return spring 24 pushes the push sleeve 6 to reset through the elastic action.

[0036] The inner wall of the clamping sleeve 2 is provided with positioning strips 25, and the outer wall of the clamping pipe 7 is provided with positioning grooves 26. The positioning strips 25 and the positioning grooves 26 are provided with multiple groups and are in sliding connection. The positioning strips 25 and the positioning grooves 26 are in sliding connection, which provides directional restriction for the movement of the clamping pipe 7, so that the clamping pipe 7 can only move along a predetermined track.

[0037] In the embodiment, the mounting frame 1 is installed on the outer wall of the electric tool, and the button rod 17 is aligned and matched with the electronic trigger element. Pressing the button rod 17 makes it slide along the clamping pipe 7 and simultaneously extrudes the return spring 18. The bottom end of the button rod 17 contacts the electronic trigger element to operate the switch. When it is necessary to disassemble the button rod 17 and the clamping pipe 7, the rotating sleeve 12 is rotated to drive the gear ring 13 to rotate. The gear ring 13 is in meshing transmission with the multiple groups of gears 16, thereby driving the multiple groups of gears 16 to rotate. The gear 16 drives the screw rod 15 to rotate. The screw rod 15 is in threaded cooperation with the transmission sleeve 9, thereby driving the transmission sleeve 9 to move longitudinally along the screw rod 15 and simultaneously driving the multiple groups of lock blocks 10 to move out of the lock holes 11. At this time, the multiple groups of arc-shaped rods 4 are in an unlocked state. The multiple groups of compression springs 23 are elastically reset to push the top blocks 22. The top blocks 22 drive the arc-shaped rods 4 to slide and reset along the sliding holes 3. The arc-shaped rods 4 drive the clamping blocks 5 to withdraw from the clamping grooves 8, thereby releasing the clamping of the clamping pipe 7. Then, the multiple groups of return springs 24 push the push sleeve 6. The push sleeve 6 pushes the clamping pipe 7. The clamping pipe 7 is pushed to withdraw from the clamping sleeve 2 by the reverse force of the return spring 24, thereby completing the disassembly. When it is necessary to install, the clamping pipe 7 is inserted into the clamping sleeve 2. The top end of the clamping pipe 7 pushes the push sleeve 6. The push sleeve 6 pushes the top blocks 22 provided at the top ends of the multiple groups of arc-shaped rods 4. The top blocks 22 push the arc-shaped rods 4 to slide and push the clamping blocks 5 to be clamped in the clamping grooves 8. Then, the rotating sleeve 12 is rotated to drive the gear ring 13 to mesh with the gears 16, thereby driving the screw rod 15 to be in threaded cooperation with the transmission sleeve 9, thereby driving the transmission sleeve 9 to push the multiple groups of lock blocks 10 to be inserted into the lock holes 11, thereby limiting the multiple groups of arc-shaped rods 4. Then, the rotating sleeve 12 is fixed by the positioning mechanism, thereby completing the installation.

[0038] Please refer to Figures 3-5 , as an embodiment of the positioning mechanism: the positioning mechanism comprises a fixed block 27, a fixed groove 28, a tension spring 29, a lock sleeve 30 and an unlocking groove 31. The fixed block 27 is provided with multiple groups of sliding installation on the rotating sleeve 12. The fixed groove 28 is provided with multiple groups of distribution on the outer wall of the clamping sleeve 2. The tension spring 29 is installed at the top end of the multiple groups of fixed blocks 27 and is connected with the outer wall of the rotating sleeve 12. The unlocking groove 31 is provided with multiple groups of distribution on the lock sleeve 30.

[0039] More specifically, rotating the lock sleeve 30 makes the inner side abut and push the top end of the plurality of fixed blocks 27, so that the bottom end of the plurality of fixed rods is clamped in the plurality of fixed grooves 28 arranged on the outer wall of the clamping sleeve 2, and the locking is completed. When unlocking is needed, the unlocking groove 31 is moved again by rotating the rotating sleeve 12, and when the unlocking groove 31 moves to the outside of the fixed block 27, the plurality of pull springs 29 extend outward to pull the fixed block 27 to move outward, so that the plurality of positioning blocks are separated from the fixed groove 28, and the locking of the rotating sleeve 12 is released.

[0040] In summary, when the overall device is in use or operation: the mounting frame 1 is installed on the outer wall of the electric tool, and the button rod 17 is aligned and matched with the electronic trigger element. Pressing the button rod 17 makes it slide along the clamping pipe 7, and at the same time, the reset spring 18 is extruded. The switch operation is performed by the contact between the bottom end of the button rod 17 and the electronic trigger element. When the button rod 17 and the clamping pipe 7 need to be disassembled, the gear ring 13 is rotated by rotating the rotating sleeve 12, and the gear ring 13 is rotated and engaged with the plurality of gears 16 to drive the plurality of gears 16 to rotate. The gear 16 drives the screw rod 15 to rotate, and the screw rod 15 is threadedly matched with the transmission sleeve 9 to drive the transmission sleeve 9 to move longitudinally along the screw rod 15, and at the same time, the plurality of lock blocks 10 are moved out of the lock hole 11. At this time, the plurality of arc-shaped rods 4 are in an unlocked state. The top block 22 is pushed to reset by the elastic reset of the plurality of compression springs 23, the top block 22 drives the arc-shaped rod 4 to slide and reset along the sliding hole 3, the arc-shaped rod 4 drives the clamping block 5 to withdraw from the clamping groove 8, and the clamping pipe 7 is released. Subsequently, the push sleeve 6 is pushed by the plurality of return springs 24, the push sleeve 6 pushes the clamping pipe 7, and the clamping pipe 7 is pushed out of the clamping sleeve 2 by the reverse force of the return spring 24, and the disassembly is completed. When installation is needed, the clamping pipe 7 is inserted into the clamping sleeve 2, the push sleeve 6 is pushed by the top end of the clamping pipe 7, the push sleeve 6 pushes the top block 22 arranged at the top end of the plurality of arc-shaped rods 4, the top block 22 pushes the arc-shaped rod 4 to slide and push the clamping block 5 to be clamped in the clamping groove 8 along the sliding hole 3, and then the rotating sleeve 12 is rotated to engage the gear ring 13 with the gear 16 to drive the screw rod 15 to be threadedly matched with the transmission sleeve 9, so that the transmission sleeve 9 pushes the plurality of lock blocks 10 to be inserted into the lock hole 11 to limit the plurality of arc-shaped rods 4. Subsequently, the rotating sleeve 12 is fixed by the positioning mechanism, and the installation is completed.

[0041] Rotating the lock sleeve 30 makes the inner side abut and push the top end of the plurality of fixed blocks 27, so that the bottom end of the plurality of fixed rods is clamped in the plurality of fixed grooves 28 arranged on the outer wall of the clamping sleeve 2, and the locking is completed. When unlocking is needed, the unlocking groove 31 is moved again by rotating the rotating sleeve 12, and when the unlocking groove 31 moves to the outside of the fixed block 27, the plurality of pull springs 29 extend outward to pull the fixed block 27 to move outward, so that the plurality of positioning blocks are separated from the fixed groove 28, and the locking of the rotating sleeve 12 is released.

[0042] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection mode, which will not be described here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A switch button assembly of a power tool comprising a mounting bracket (1), characterized in that: The mounting frame (1) is provided with a clamping mechanism, the clamping mechanism comprises a clamping sleeve (2), a sliding hole (3), an arc-shaped rod (4), a clamping block (5), a push sleeve (6), a clamping pipe (7) and a clamping groove (8), the clamping sleeve (2) is installed on the mounting frame (1), the sliding hole (3) is provided with a plurality of groups which are distributed on the clamping sleeve (2), the arc-shaped rod (4) slides in the sliding hole (3), the clamping block (5) is installed at the bottom end of the arc-shaped rod (4), the push sleeve (6) is arranged in the clamping sleeve (2), the clamping block (5) is arranged in the clamping sleeve (2), the clamping groove (8) is provided with a plurality of groups which are distributed on the outer wall of the clamping pipe (7), the outer wall of the clamping sleeve (2) is provided with a locking mechanism, the locking mechanism comprises a transmission sleeve (9), a locking block (10), a locking hole (11), a rotating sleeve (12), a gear ring (13), a side block (14), a screw rod (15), a gear (16) and a positioning mechanism, the transmission sleeve (9) is slidably installed on the outer wall of the clamping sleeve (2), the locking block (10) is provided with a plurality of groups which are installed on the top surface of the transmission sleeve (9), the locking hole (11) is arranged on the arc-shaped rod (4), the rotating sleeve (12) is rotatably installed on the outer wall of the clamping sleeve (2), the gear ring (13) is installed on the rotating sleeve (12), the side block (14) is provided with a plurality of groups which are installed on the outer wall of the clamping sleeve (2), the screw rod (15) is rotatably installed on the side block (14), and the gear (16) is installed at the bottom end of the screw rod (15) and is engaged with the gear ring (13).

2. The switch button assembly of claim 1, wherein: The clamping pipe (7) is provided with a button rod (17) which is connected with the inner bottom surface of the clamping pipe (7) and is provided with a reset spring (18).

3. The switch button assembly of claim 2, wherein: The outer wall of the button rod (17) is provided with a limiting strip (19), and the limiting strip (19) is provided with a plurality of groups which are slidably connected with the clamping pipe (7).

4. The switch button assembly of claim 3, wherein the plurality of sets of contacts are arranged in a plurality of rows. The side wall of the sliding hole (3) is provided with a side groove (20), the outer wall of the arc-shaped rod (4) is provided with a side strip (21), and the side strip (21) is slidably arranged in the side groove (20).

5. The switch button assembly of claim 4, wherein the plurality of sets of magnets are arranged in a circular pattern. 5 The top end of the arc-shaped rod (4) is provided with a top block (22), and the top block (22) is connected with the inner wall of the clamping sleeve (2) and is provided with a compression spring (23).

6. The switch button assembly of claim 5 wherein: The push sleeve (6) and the inner top surface of the clamping sleeve (2) are connected and provided with a return spring (24), and the return spring (24) is provided with a plurality of groups.

7. The switch button assembly of claim 6 wherein: The inner wall of the clamping sleeve (2) is provided with a positioning strip (25), the outer wall of the clamping pipe (7) is provided with a positioning groove (26), and the positioning strip (25) and the positioning groove (26) are provided with a plurality of groups and are slidably connected.

8. The switch button assembly of claim 7, wherein: The positioning mechanism comprises a fixed block (27), a fixed groove (28), a tension spring (29), a locking sleeve (30) and an unlocking groove (31), the fixed block (27) is provided with a plurality of groups which are slidably installed on the rotating sleeve (12), the fixed groove (28) is provided with a plurality of groups which are distributed on the outer wall of the clamping sleeve (2), the tension spring (29) is installed at the top end of the fixed block (27) and is connected with the outer wall of the rotating sleeve (12), and the unlocking groove (31) is provided with a plurality of groups which are distributed on the locking sleeve (30).

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