Switching mechanism with locking function for electric tool

Abstract

The utility model discloses an electric tool switch mechanism with a locking function, which comprises a combination mechanism, a stop mechanism and an operation assembly, the combination mechanism comprises a driving shell, a driven shell, a first fixing frame, a second fixing frame and a connecting rod, and the stop mechanism comprises a pressing piece, a rotating shaft, a first spring, a second spring and a clamping plate. The operation assembly comprises a pressure-sensitive sensor, a connecting wire and an installation disc, under the mutual cooperation effect of the mechanisms, the switch mechanism of the device can be rapidly assembled on the tool body, the production process is simplified, the labor cost is reduced, a user or a maintainer can easily replace a damaged switch through the rapid assembly design, and then the operation efficiency is improved. The stop mechanism of the device provides accurate switching operation, prevents the switch from premature rebounding or failure, ensures stable operation of the tool, and prevents the tool from being stopped or out of control due to accidental touch in the operation process through mechanical locking.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric tool technical field, concretely is a switch mechanism with locking function for electric tool. BACKGROUND

[0002] The switch mechanism with locking function for electric tool is a mechanical or electronic device for controlling the start and stop of electric tools and supporting locking function.

[0003] Firstly, the traditional non-fast assembly switch needs more manual and tool installation, increases production cost, and once the switch is damaged, it is difficult and time-consuming to disassemble, and the whole tool body may need to be replaced.

[0004] Secondly, the traditional non-mechanical control switch may be easily out of control due to accidental touch or vibration, affecting the continuous operation of the tool, and the tool may be accidentally stopped or started due to accidental touch or switch failure, increasing the safety hazard.

[0005] Finally, the traditional switch structure may need additional adjustment of the tool or use of other auxiliary equipment, which is complicated and tedious to operate. INVENTION CONTENTS

[0006] (I) Technical problems solved

[0007] In view of the deficiencies of the prior art, the utility model provides a switch mechanism with locking function for electric tool to solve the technical problems mentioned in the background art.

[0008] (II) Technical scheme

[0009] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a switch mechanism with locking function for electric tool, comprising a combination mechanism, a stop mechanism and a running assembly, the combination mechanism comprises a driving shell, a driven shell, a first fixed frame, a second fixed frame and a connecting rod, the driving shell and the driven shell are connected, the first fixed frame and the second fixed frame are installed on the driving shell and the driven shell and are respectively detachably connected with the driving shell and the driven shell, the connecting rod is installed on the first fixed frame and is rotatably connected with the first fixed frame, the stop mechanism comprises a pressing piece, a rotating shaft, a first spring, a second spring and a clamping plate, the pressing piece is installed inside the driving shell and the driven shell and is slidably connected with the driving shell and the driven shell, the rotating shaft is installed inside the driving shell and is rotatably connected with the driving shell and the driven shell, the first spring is fixedly installed inside the driving shell and its other end is fixedly connected with the pressing piece, the second spring is fixedly installed on the driving shell and the driven shell and its other end is fixedly connected with the clamping plate, and the clamping plate is connected with the rotating shaft.

[0010] Preferably, the operating assembly comprises a pressure-sensitive sensor, a connecting line and a mounting disc, the pressure-sensitive sensor is fixedly mounted on the mounting disc, one end of the connecting line is fixedly connected with the pressure-sensitive sensor, and the mounting disc is mounted inside the driving shell and the driven shell and is connected with the driving shell and the driven shell respectively.

[0011] Preferably, in a further aspect, the driving shell is provided with an insertion rod, the driven shell is provided with an insertion hole, and the insertion rod is connected with the insertion hole, so as to facilitate the connection of the driving shell and the driven shell.

[0012] Preferably, in a further aspect, the driving shell and the driven shell are provided with dismounting screws, the dismounting screws are screwed with the driving shell and the driven shell respectively, the driving shell and the driven shell are provided with wire through holes, and the connecting line passes through the wire through holes, so as to facilitate the operation of the battery-driven tool.

[0013] Preferably, in a further aspect, the driving shell and the driven shell are provided with mounting grooves, the mounting disc is connected with the mounting grooves, the driving shell and the driven shell are provided with engaging holes, and the connecting rod is connected with the engaging holes, so as to facilitate the assembly of the device.

[0014] Preferably, in a further aspect, one end of the connecting rod is provided with an engaging block and an extension plate, the engaging block is connected with the engaging hole, the driving shell and the driven shell are provided with engaging rings, the first mounting frame is provided with an engaging groove, and the engaging ring is connected with the engaging groove, so as to facilitate the connection and fixation between the driving shell and the driven shell.

[0015] Preferably, in a further aspect, the pressing piece is provided with a flexible block and a sliding block, the rotating shaft is provided with a sliding groove, the flexible block is connected with the pressure-sensitive sensor, and the sliding block is slidingly connected with the sliding groove, so as to facilitate the operation of the stop mechanism.

[0016] Preferably, in a further aspect, the clamping plate is provided with a positioning block, the rotating shaft is provided with a positioning hole, and the positioning hole is connected with the positioning block, so as to facilitate the fixation of the position of the rotating shaft.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides a switch mechanism with locking function for electric tool, has the following beneficial effects:

[0019] In the utility model, through setting combination mechanism, under the mutual cooperation of driving shell, driven shell, first fixed frame, second fixed frame and connecting rod and the like components, the switch mechanism of the device can be quickly assembled on the tool body, the production process is simplified, the labor cost is reduced, and the quick assembly design enables users or maintenance personnel to easily replace damaged switches, shortens the maintenance time and reduces the downtime cost.

[0020] The utility model discloses a locking function's electric tool switch mechanism total structure schematic diagram, the utility model discloses a combination mechanism explosion view, the utility model discloses a main drive shell and passive shell internal structure explosion view, the utility model discloses another angle main drive shell and passive shell internal structure explosion view, the utility model discloses a stop mechanism explosion view.

[0021] The utility model discloses a locking function's electric tool switch mechanism total structure schematic diagram, the utility model discloses a combination mechanism explosion view, the utility model discloses a main drive shell and passive shell internal structure explosion view, the utility model discloses another angle main drive shell and passive shell internal structure explosion view, the utility model discloses a stop mechanism explosion view. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model discloses a locking function's electric tool switch mechanism total structure schematic diagram, the utility model discloses a combination mechanism explosion view, the utility model discloses a main drive shell and passive shell internal structure explosion view, the utility model discloses another angle main drive shell and passive shell internal structure explosion view, the utility model discloses a stop mechanism explosion view.

[0023] Figure 2 The utility model discloses a locking function's electric tool switch mechanism total structure schematic diagram, the utility model discloses a combination mechanism explosion view, the utility model discloses a main drive shell and passive shell internal structure explosion view, the utility model discloses another angle main drive shell and passive shell internal structure explosion view, the utility model discloses a stop mechanism explosion view.

[0024] Figure 3 The utility model discloses a locking function's electric tool switch mechanism total structure schematic diagram, the utility model discloses a combination mechanism explosion view, the utility model discloses a main drive shell and passive shell internal structure explosion view, the utility model discloses another angle main drive shell and passive shell internal structure explosion view, the utility model discloses a stop mechanism explosion view.

[0025] Figure 4 The utility model discloses a locking function's electric tool switch mechanism total structure schematic diagram, the utility model discloses a combination mechanism explosion view, the utility model discloses a main drive shell and passive shell internal structure explosion view, the utility model discloses another angle main drive shell and passive shell internal structure explosion view, the utility model discloses a stop mechanism explosion view.

[0026] Figure 5 The utility model discloses a locking function's electric tool switch mechanism total structure schematic diagram, the utility model discloses a combination mechanism explosion view, the utility model discloses a main drive shell and passive shell internal structure explosion view, the utility model discloses another angle main drive shell and passive shell internal structure explosion view, the utility model discloses a stop mechanism explosion view.

[0027] 1, main drive shell;2, passive shell;3, first fixed frame;4, second fixed frame;5, connecting rod;6, presser;7, rotating shaft;8, first spring;9, second spring;10, clamping plate;11, pressure sensor;12, connecting line;13, mounting disc;14, insertion rod;15, insertion hole;16, dismounting screw;17, wire hole;18, mounting groove;19, occlusion hole;20, occlusion block;21, extension plate;22, occlusion ring;23, occlusion groove;24, flexible block;25, sliding block;26, sliding groove;27, positioning block;28, positioning hole. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0029] Embodiment 1:

[0030] Please refer to Figures 1-5 The utility model provides a switch mechanism with locking function for electric tool, including combination mechanism, stop mechanism and operation assembly, the combination mechanism includes initiative shell 1, passive shell 2, first fixed frame 3, second fixed frame 4 and connecting rod 5, initiative shell 1 and passive shell 2 are connected, first fixed frame 3 and second fixed frame 4 are installed on initiative shell 1 and passive shell 2 and are respectively detachably connected with initiative shell 1 and passive shell 2, connecting rod 5 is installed on first fixed frame 3 and is rotatably connected with first fixed frame 3, the stop mechanism includes presser 6, rotating shaft 7, first spring 8, second spring 9 and clamping plate 10, presser 6 is installed inside initiative shell 1 and passive shell 2 and is slidably connected with initiative shell 1 and passive shell 2 respectively, rotating shaft 7 is installed inside initiative shell 1 and is rotatably connected with initiative shell 1 and passive shell 2 respectively, first spring 8 is fixedly installed inside initiative shell 1 and is fixedly connected with presser 6 at the other end, second spring 9 is fixedly installed on initiative shell 1 and passive shell 2 and is fixedly connected with clamping plate 10 at the other end, clamping plate 10 is connected with rotating shaft 7.

[0031] In the embodiment, the combination mechanism includes initiative shell 1, passive shell 2, first fixed frame 3, second fixed frame 4 and connecting rod 5, in use, first, the device is assembled, at this time, the mounting plate is placed into the mounting groove 18 in initiative shell 1, and the connecting line 12 is placed into the wire hole 17 in initiative shell 1, then the rotating shaft 7 is installed into initiative shell 1 and the presser 6 is installed in initiative shell 1, then passive shell 2 is installed on initiative shell 1, at this time, the insertion hole 15 on passive shell 2 and the insertion rod 14 on initiative shell 1 are connected, when the two are contacted, at this time, the first fixed frame 3 can be installed on initiative shell 1 and passive shell 2, when the first fixed frame 3 is installed on initiative shell 1 and passive shell 2, the engagement ring 22 on the first fixed frame 3 is connected with the engagement groove 23 on initiative shell 1 and passive shell 2, so that the first fixed frame 3 can be firmly installed on the initiative frame and the driven frame, and at this time, the connecting rod 5 can be rotated, and the engagement block 20 at one end of the connecting rod 5 is inserted into the insertion hole 15 in initiative shell 1 and passive shell 2, so as to begin to strengthen the fixation of the first fixed frame 3, and the second fixed frame 4 is directly installed on the initiative frame and the driven frame, and at this time, the dismounting bolt can be installed through the clamping plate 10 on initiative shell 1 and passive shell 2, when the device is dismounted, the connecting rod 5 can be taken up through the extension plate 21, and then the initiative shell 1 and the passive shell 2 are dismounted according to the above.

[0032] In the embodiment, the stop mechanism comprises a pressing piece 6, a rotating shaft 7, a first spring 8, a second spring 9 and a clamping plate 10. In use, the clamping plate 10 is first pushed outward and the pressing piece 6 is pressed, so that the pressing piece 6 can slide in the active shell 1 and the passive shell 2 and compress the first spring 8, and the flexible block 24 on the pressing piece 6 contacts the pressure-sensitive sensor 11. When the pressure-sensitive sensor 11 is contacted, the pressure-sensitive sensor 11 can drive the working state of the tool according to the pressure. If the working state reaches a certain state, the working state needs to be maintained. At this time, the clamping plate 10 can be sent away, so that the compressed second spring 9 pushes the clamping plate 10 to slide on the dismounting bolt and finally contacts the rotating shaft 7. The positioning block 27 on the clamping plate 10 and the positioning hole 28 on the rotating shaft 7 are connected, so that the rotating shaft 7 is fixed, the sliding block 25 on the pressing piece 6 cannot slide in the sliding groove 26 on the rotating shaft 7, so that the pressure transmitted to the pressure-sensitive resistor by the sliding block is always consistent, and the fixing of the working state of the tool is completed.

[0033] Embodiment 2

[0034] In use, the device is assembled first, at this time the mounting plate is placed into the mounting slot 18 in the driving shell 1, and the connecting wire 12 is placed into the wire hole 17 in the driving shell 1, then the rotating shaft 7 is installed into the driving shell 1 and the pressing piece 6 is installed in the driving shell 1, then the driven shell 2 is installed onto the driving shell 1, at this time the insertion hole 15 on the driven shell 2 and the insertion rod 14 on the driving shell 1 are connected, when the two are in contact, the first fixing frame 3 can be installed onto the driving shell 1 and the driven shell 2, at this time the first fixing frame 3 is installed onto the driving shell 1 and the driven shell 2, the engaging ring 22 on the first fixing frame 3 is connected with the engaging slot 23 on the driving shell 1 and the driven shell 2, so that the first fixing frame 3 can be firmly installed on the driving shell and the driven shell, and at this time the connecting rod 5 can be rotated, and the engaging block 20 at one end of the connecting rod 5 is inserted into the insertion hole 15 in the driving shell 1 and the driven shell 2, so as to start to strengthen the fixing of the first fixing frame 3, and the second fixing frame 4 is directly installed onto the driving shell and the driven shell, and at this time the dismounting bolt can be installed through the clamping plate 10 and installed on the driving shell 1 and the driven shell 2, when the device is dismounted, the connecting rod 5 can be lifted by the extension plate 21, then the driving shell 1 and the driven shell 2 are dismounted as described above, and in this way, the device is very convenient to maintain, when the device is working, the clamping plate 10 is first pushed outward and the pressing piece 6 is pressed, so that the pressing piece 6 can slide in the driving shell 1 and the driven shell 2 and press the first spring 8, so that the flexible block 24 on the pressing piece 6 contacts the pressure sensitive sensor 11, at this time after contacting the pressure sensitive sensor 11, the pressure sensitive sensor 11 will actuate the working state of the tool according to the pressure, if a certain state is reached and the state needs to be continuously maintained, at this time the clamping plate 10 can be sent away, so that the second spring 9 that is compressed pushes the clamping plate 10 to slide on the dismounting bolt and finally contacts the rotating shaft 7, so that the positioning block 27 on the clamping plate 10 and the positioning hole 28 on the rotating shaft 7 are connected, so as to fix the rotating shaft 7, so that the sliding block 25 on the pressing piece 6 cannot slide in the sliding groove 26 on the rotating shaft 7, so that the pressure transmitted to the pressure sensitive resistor by the flexible block is always consistent, so as to complete the fixing of the working state of the tool.

[0035] 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 methods, which will not be described one by one. In the above, when it is mentioned that it is fixedly connected, it is preferred to be welded. 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 mechanism for a power tool having a locking function, comprising a combination mechanism, a stop mechanism and a running assembly, characterized in that, The combination mechanism comprises a driving shell (1), a passive shell (2), a first fixing frame (3), a second fixing frame (4) and a connecting rod (5), the driving shell (1) and the passive shell (2) are connected in cooperation, the first fixing frame (3) and the second fixing frame (4) are installed on the driving shell (1) and the passive shell (2) and are detachably connected with the driving shell (1) and the passive shell (2) respectively, and the connecting rod (5) is installed on the first fixing frame (3) and is rotatably connected with the first fixing frame (3).

2. The switch mechanism for a power tool having a locking function according to claim 1, characterized in that: The running assembly comprises a pressure-sensitive sensor (11), a connecting wire (12) and a mounting disc (13), the pressure-sensitive sensor (11) is fixedly installed on the mounting disc (13), one end of the connecting wire (12) is fixedly connected with the pressure-sensitive sensor (11), and the mounting disc (13) is installed in the driving shell (1) and the passive shell (2) and is connected with the driving shell (1) and the passive shell (2) in cooperation respectively.

3. The switch mechanism for a power tool having a lock function according to claim 2, characterized in that: An insertion rod (14) is arranged on the driving shell (1), an insertion hole (15) is arranged on the passive shell (2), and the insertion rod (14) is connected with the insertion hole (15) in cooperation.

4. The switch mechanism for a power tool having a locking function according to claim 2, characterized in that: A dismounting screw (16) is installed on the driving shell (1) and the passive shell (2), the dismounting screw (16) is threadedly engaged with the driving shell (1) and the passive shell (2) respectively, a wire passing hole (17) is arranged on the driving shell (1) and the passive shell (2), and the connecting wire (12) passes through the wire passing hole (17).

5. The switch mechanism for a power tool having a locking function according to claim 2, characterized in that: An installation groove (18) is arranged on the driving shell (1) and the passive shell (2), the mounting disc (13) is connected with the installation groove (18) in cooperation, a clamping hole (19) is arranged on the driving shell (1) and the passive shell (2), and the connecting rod (5) is connected with the clamping hole (19) in cooperation.

6. The switch mechanism with a locking function for a power tool according to claim 5, characterized in that: One end of the connecting rod (5) is provided with a clamping block (20) and an extension plate (21), the clamping block (20) is connected with the clamping hole (19) in cooperation, a clamping ring (22) is arranged on the driving shell (1) and the passive shell (2), a clamping groove (23) is arranged on the first fixing frame (3), and the clamping ring (22) is connected with the clamping groove (23) in cooperation.

7. The switch mechanism with a locking function for a power tool according to claim 2, characterized in that: The pressing piece (6) is provided with a flexible block (24) and a sliding block (25), the rotating shaft (7) is provided with a sliding groove (26), the flexible block (24) is connected with the pressure-sensitive sensor (11), and the sliding block (25) is connected with the sliding groove (26).

8. The switch mechanism with a locking function for a power tool according to claim 1, characterized in that: The clamping plate (10) is provided with a positioning block (27), the rotating shaft (7) is provided with a positioning hole (28), and the positioning hole (28) is connected with the positioning block (27).

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