CN219677100U - Switch mechanism and electric tool - Google Patents
Switch mechanism and electric tool Download PDFInfo
- Publication number
- CN219677100U CN219677100U CN202321374369.XU CN202321374369U CN219677100U CN 219677100 U CN219677100 U CN 219677100U CN 202321374369 U CN202321374369 U CN 202321374369U CN 219677100 U CN219677100 U CN 219677100U
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- trigger
- limiting
- deflector rod
- electric tool
- limiting plate
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- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 230000000694 effects Effects 0.000 claims abstract description 8
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 8
- 238000005498 polishing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- Portable Power Tools In General (AREA)
Abstract
The utility model relates to a switch mechanism and an electric tool, wherein the switch mechanism comprises: the switch main body is arranged in the shell of the electric tool and is used for starting and stopping the electric tool; a trigger movably arranged on a casing of the electric tool and used for switching on and off of the switch main body; the deflector rod is movably arranged on the shell of the electric tool; the electric tool is characterized in that a first limiting component is arranged between the deflector rod and the trigger, the first limiting component is used for preventing the trigger from moving towards the switch main body, a second limiting component is further arranged between the deflector rod and the trigger, the deflector rod is provided with a first position and a second position relative to a shell of the electric tool, and when the deflector rod moves from the first position to the second position, the first limiting component and the second limiting component take effect. The electric tool has higher safety.
Description
[ field of technology ]
The present disclosure relates to power tools, and particularly to a switch mechanism for a power tool.
[ background Art ]
With the development of technology, the types and styles of electric tools are more and more, and the functions are more and more diversified. The power tool is generally controlled to start and stop by a switch, and in order to trigger the switch, a casing of the power tool is provided with a movable trigger, the switch is turned on when the trigger is pressed to enable the power tool to be electrified, and the switch is turned off when the trigger is released to enable the power tool to be powered off. Because the trigger switch's action is simple, carelessly touching the trigger just can start electric tool, has certain use potential safety hazard.
To solve the above problems, chinese patent publication No. CN211507440U discloses a switch structure for an electric tool, which prevents a trigger from being erroneously operated to turn on a switch by moving a lock lever to make a lock block on the lock lever abut against a protrusion on the trigger. Although the switch structure can prevent the trigger from being misoperation, the condition that the lock rod cannot move in place or excessively moves easily occurs in the process of moving the lock rod, so that the lock block cannot be just abutted on the lug, the trigger can still be pressed, and potential safety hazards exist.
In view of the foregoing, it is desirable to provide an improved switching mechanism for a power tool that overcomes the shortcomings of the prior art.
[ utility model ]
Aiming at the defects of the prior art, the utility model aims to provide a switching mechanism with higher safety and an electric tool.
The utility model solves the problems in the prior art by adopting the following technical scheme: a switching mechanism, comprising: the switch main body is arranged in the shell of the electric tool and is used for starting and stopping the electric tool; a trigger movably arranged on a casing of the electric tool and used for switching on and off of the switch main body; the deflector rod is movably arranged on the shell of the electric tool; the electric tool is characterized in that a first limiting component is arranged between the deflector rod and the trigger, the first limiting component is used for preventing the trigger from moving towards the switch main body, a second limiting component is further arranged between the deflector rod and the trigger, the deflector rod is provided with a first position and a second position relative to a shell of the electric tool, and when the deflector rod moves from the first position to the second position, the first limiting component and the second limiting component take effect.
The further improvement scheme is as follows: the movement direction of the trigger is orthogonal to the movement direction of the deflector rod.
The further improvement scheme is as follows: the first limiting component comprises a first limiting member arranged on the trigger and a second limiting member arranged on the deflector rod, and when the first limiting component is effective, the first limiting member is abutted with the second limiting member.
The further improvement scheme is as follows: the second limiting member is detachably arranged on the deflector rod, the second limiting member comprises a connecting rod, one end of the connecting rod is rotatably arranged on the switch main body, the other end of the connecting rod is rotatably arranged on the deflector rod and provided with a first convex rib, and the trigger is provided with a second convex rib which is in fit and butt joint with the first convex rib.
The further improvement scheme is as follows: one end of the connecting rod is provided with a pivot, and the switch main body is provided with a shaft hole which is matched with the pivot for pivot.
The further improvement scheme is as follows: the other end of the connecting rod is also provided with a pin, the pin is arranged on one side of the connecting rod opposite to the first convex rib, and the deflector rod is provided with a bracket for the pin to pass through.
The further improvement scheme is as follows: the trigger is provided with a first groove for accommodating the first convex rib.
The further improvement scheme is as follows: the second limiting assembly comprises a first limiting plate arranged on the deflector rod and a second limiting plate arranged on the trigger, at least part of the second limiting plate is positioned on the moving path of the first limiting plate, and the first limiting plate is arranged to be abutted on the second limiting plate when the deflector rod moves from the first position to the second position.
The further improvement scheme is as follows: the trigger is provided with a second groove for accommodating the first limiting plate.
The utility model also provides a power tool comprising a housing provided with a switching mechanism as described above.
Compared with the prior art, the utility model has the following beneficial effects: according to the switch mechanism provided by the utility model, the second limiting component is arranged between the deflector rod and the trigger, so that the deflector rod is ensured to move from the first position to the second position enabling the first limiting component to take effect, the electric tool is prevented from being started due to the fact that the trigger is touched carelessly, and the switch mechanism has higher safety.
[ description of the drawings ]
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:
FIG. 1 is a schematic view of a switch mechanism for a polishing machine according to an embodiment of the present utility model;
FIG. 2 is a disassembled view of the components of the switching mechanism shown in FIG. 1;
FIG. 3 is an assembled view of the components of the switching mechanism shown in FIG. 1;
fig. 4 is a schematic view of the trigger structure of the switch mechanism shown in fig. 1.
100. Polishing machine; 110. a housing; 200. a switching mechanism; 210. a switch main body; 211. a shaft hole; 220. a trigger; 221. the second convex rib; 222. a first groove; 223. a second limiting plate; 224. a second groove; 230. a deflector rod; 231. a bracket; 232. a first limiting plate; 240. a first limit assembly; 241. a first limit member; 242. a second limit member; 243. a connecting rod; 244. a pivot; 245. the first convex rib; 246. a pin; 250. and the second limiting assembly.
[ detailed description ] of the utility model
The utility model will be described in further detail with reference to the drawings and embodiments.
The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The words such as "upper", "lower", "front", "rear", "left", "right", etc., indicating an azimuth or a positional relationship are merely based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electric tool, which is exemplified by a polishing machine 100, and the polishing machine 100 includes a housing 110 and a switch mechanism 200 disposed on the housing 110.
In the present embodiment, the switch mechanism 200 includes a switch main body 210, a trigger 220 and a shift lever 230, wherein the switch main body 210 is disposed in the casing 110 of the polishing machine 100 and is used for starting and stopping the polishing machine 100; the trigger 220 is movably disposed on the casing 110 and located at a front side of the switch body 210, the trigger 220 being used to switch the switch body 210 on and off, for example, when a user presses the trigger 220 in a front-to-rear direction, the switch body 210 is turned on, and when the user releases the trigger 220, the trigger 220 returns to an initial position in a rear-to-front direction such that the switch body 210 is turned off; a lever 230 is movably provided on the housing 110 of the polisher 100, and it is possible to control whether the trigger 220 can be pressed by moving the lever 230, for example, when the user pushes the lever 230 in a left-to-right direction, the lever 230 prevents the trigger 220 from moving backward, and when the user pushes the lever 230 in a right-to-left direction, the lever 230 allows the trigger 220 to move backward.
Referring to fig. 2 to 4, a first limiting component 240 is disposed between the driving lever 230 and the trigger 220, the first limiting component 240 is configured to prevent the trigger 220 from moving toward the switch main body 210, a second limiting component 250 is disposed between the driving lever 230 and the trigger 220, the driving lever 230 is disposed at a first position and a second position relative to the housing 110 of the polishing machine 100, and the first limiting component 240 and the second limiting component 250 are effective when the driving lever 230 moves from the first position to the second position.
In this embodiment, the movement direction of the trigger 220 is orthogonal to the movement direction of the lever 230, for example, the movement direction of the trigger 220 is the front-back direction, the movement direction of the lever 230 is the left-right direction, and the first position of the lever 230 refers to the position of the lever 230 on the casing 110 of the polishing machine 100 near the left side, that is, the initial position of the lever 230; the second position of the lever 230 refers to the position where the lever 230 just prevents the trigger 220 from moving rearward, i.e., the final position of the lever 230.
In this embodiment, the first limiting component 240 includes a first limiting member 241 disposed on the trigger 220 and a second limiting member 242 disposed on the lever 230, when the first limiting component 240 is in effect, the first limiting member 241 abuts against the second limiting member 242, that is, when the first limiting component 240 in effect refers to a state where the first limiting component 240 acts to prevent the trigger 220 from moving backward, and correspondingly, when the first limiting component 240 is not in effect, the first limiting member 241 does not abut against the second limiting member 242, and at this time, the trigger 220 is allowed to move backward.
In the present embodiment, the second limiting member 242 is a detachable structure, which is detachably connected to both the lever 230 and the trigger 220.
Specifically, the second limiting member 242 includes a link 243, one end of the link 243 is rotatably disposed on the switch main body 210, for example, one end of the link 243 is provided with a pivot 244, the switch main body 210 is provided with a shaft hole 211 that is pivoted in cooperation with the pivot 244, and the pivot 244 is embedded in the shaft hole 211; the other end of the connecting rod 243 is rotatably arranged on the deflector rod 230 and provided with a first convex rib 245, the trigger 220 is provided with a second convex rib 221 matched and abutted with the first convex rib 245, and when the first limiting component 240 is effective, the first convex rib 245 is abutted with the second convex rib 221.
The other end of the link 243 is further provided with a pin 246, the pin 246 is disposed on the opposite side of the link 243 from the first rib 245, and the lever 230 is provided with a bracket 231 through which the pin 246 passes. In this embodiment, the pin 246 is disposed on the upper side of the link 243 and extends upward, the first bead 245 is disposed on the lower side of the link 243 and extends downward, and the bracket 231 is a U-shaped bracket 231 and opens toward the front side.
In this embodiment, the pin 246 is pivotally connected to the bracket 231, and during the process of moving the shifter lever 230 left and right, the bracket 231 on the shifter lever 230 moves left and right together with the pin 246, and accordingly, the first rib 245 located on the lower side of the pin 246 also moves left and right along with the movement of the shifter lever 230. When the lever 230 is in the first position, the first rib 245 is located on the left side of the second rib 221, and when the lever 230 is in the second position, the first rib 245 is located on the right rear side of the second rib 221.
The trigger 220 is provided with a first groove 222 for accommodating the first rib 245, the first groove 222 is located at the left side of the second rib 221, when the lever 230 is located at the first position, the trigger 220 can be pressed backward, and at this time, the first rib 245 moves into the first groove 222.
In this embodiment, the second limiting assembly 250 includes a first limiting plate 232 disposed on the lever 230 and a second limiting plate 223 disposed on the trigger 220, at least a portion of the second limiting plate 223 is located on the moving path of the first limiting plate 232, the first limiting plate 232 is disposed to abut against the second limiting plate 223 when the lever 230 moves from the first position to the second position, at this time, the second limiting assembly 250 is effective, that is, the second limiting assembly 250 is in a state where it acts to prevent the lever 230 from moving to the right, and accordingly, when the second limiting assembly 250 is not in an effect, the first limiting plate 232 is not in abutment with the second limiting plate 223, and the lever 230 can move to the right continuously.
The first limiting plate 232 may extend downward from the right side of the support 231 of the lever 230, the second limiting plate 223 may be a right side wall of the trigger 220, when the lever 230 moves from the first position to the second position along the left-to-right direction, the second limiting plate 223 blocks the first limiting plate 232, when the first limiting plate 232 abuts against the second limiting plate 223, the lever 230 cannot move continuously to the right, at this time, the first rib 245 is just located at the right rear side of the second rib 221 and the first rib 245 abuts against the second rib 221, so that the trigger 220 cannot be pressed backward.
The trigger 220 is provided with a second groove 224 for accommodating the first limiting plate 232, the second groove 224 is located on the right side of the second rib 221, when the driving lever 230 is located at the first position, the trigger 220 can be pressed backwards, and at this time, the first limiting plate 232 moves into the second groove 224.
When the utility model is used, the deflector rod 230 is pushed to the right so that the deflector rod 230 moves from the first position to the second position, when the first limiting plate 232 on the deflector rod 230 is abutted against the second limiting plate 223 on the trigger 220, the deflector rod 230 cannot be pushed to the right continuously, at the moment, the deflector rod 230 reaches the second position, the first convex rib 245 on the deflector rod 230 is positioned at the right rear side of the second convex rib 221 on the trigger 220, and the first convex rib 245 is abutted against the second convex rib 221, so that the trigger 220 cannot be pressed backwards.
When it is desired to press trigger 220 backward to activate polisher 100, pushing lever 230 leftward causes lever 230 to move from the second position to the first position, when lever 230 is pushed to the far left, lever 230 reaches the first position, first rib 245 on lever 230 is offset from second rib 221 on trigger 220, at which point trigger 220 can be pressed backward, polisher 100 is activated, and during the process of pressing trigger 220 backward by the user, first rib 245 moves into first groove 222 of trigger 220, and second rib 221 moves into second groove 224 of trigger 220.
The second limiting assembly 250 is arranged between the deflector rod 230 and the trigger 220, so that the deflector rod 230 can be accurately moved to the second position each time, the first convex rib 245 and the second convex rib 221 can be effectively abutted when the deflector rod 230 is in the second position, the trigger 220 is prevented from being pressed due to false touch, and the use safety is improved.
The present utility model is not limited to the above-described embodiments. Those skilled in the art will readily appreciate that many other alternatives to the power tool of the present utility model are possible without departing from the spirit and scope of the present utility model. The protection scope of the present utility model is subject to the claims.
Claims (10)
1. A switching mechanism, comprising:
the switch main body is arranged in the shell of the electric tool and is used for starting and stopping the electric tool;
a trigger movably arranged on a casing of the electric tool and used for switching on and off of the switch main body;
the deflector rod is movably arranged on the shell of the electric tool;
be provided with first spacing subassembly between the driving lever with the trigger, first spacing subassembly sets up to prevent the trigger orientation the switch main part removes, its characterized in that: and a second limiting assembly is further arranged between the deflector rod and the trigger, the deflector rod is provided with a first position and a second position relative to the shell of the electric tool, and when the deflector rod moves from the first position to the second position, the first limiting assembly and the second limiting assembly take effect.
2. The switching mechanism of claim 1, wherein: the movement direction of the trigger is orthogonal to the movement direction of the deflector rod.
3. The switching mechanism of claim 1, wherein: the first limiting component comprises a first limiting member arranged on the trigger and a second limiting member arranged on the deflector rod, and when the first limiting component is effective, the first limiting member is abutted with the second limiting member.
4. A switching mechanism according to claim 3, wherein: the second limiting member is detachably arranged on the deflector rod, the second limiting member comprises a connecting rod, one end of the connecting rod is rotatably arranged on the switch main body, the other end of the connecting rod is rotatably arranged on the deflector rod and provided with a first convex rib, and the trigger is provided with a second convex rib which is in fit and butt joint with the first convex rib.
5. The switch mechanism as recited in claim 4, wherein: one end of the connecting rod is provided with a pivot, and the switch main body is provided with a shaft hole which is matched with the pivot for pivot.
6. The switch mechanism as recited in claim 4, wherein: the other end of the connecting rod is also provided with a pin, the pin is arranged on one side of the connecting rod opposite to the first convex rib, and the deflector rod is provided with a bracket for the pin to pass through.
7. The switch mechanism as recited in claim 4, wherein: the trigger is provided with a first groove for accommodating the first convex rib.
8. The switching mechanism of claim 1, wherein: the second limiting assembly comprises a first limiting plate arranged on the deflector rod and a second limiting plate arranged on the trigger, at least part of the second limiting plate is positioned on the moving path of the first limiting plate, and the first limiting plate is arranged to be abutted on the second limiting plate when the deflector rod moves from the first position to the second position.
9. The switch mechanism as recited in claim 8, wherein: the trigger is provided with a second groove for accommodating the first limiting plate.
10. An electric tool, includes casing, its characterized in that: the housing is provided with a switching mechanism as claimed in claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321374369.XU CN219677100U (en) | 2023-05-31 | 2023-05-31 | Switch mechanism and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321374369.XU CN219677100U (en) | 2023-05-31 | 2023-05-31 | Switch mechanism and electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219677100U true CN219677100U (en) | 2023-09-12 |
Family
ID=87925096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321374369.XU Active CN219677100U (en) | 2023-05-31 | 2023-05-31 | Switch mechanism and electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219677100U (en) |
-
2023
- 2023-05-31 CN CN202321374369.XU patent/CN219677100U/en active Active
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| GR01 | Patent grant |