CN210272121U - Electric tool switch with quick breaking function - Google Patents
Electric tool switch with quick breaking function Download PDFInfo
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- CN210272121U CN210272121U CN201920272211.9U CN201920272211U CN210272121U CN 210272121 U CN210272121 U CN 210272121U CN 201920272211 U CN201920272211 U CN 201920272211U CN 210272121 U CN210272121 U CN 210272121U
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Abstract
The utility model relates to a switch field especially relates to electric tool switch with quick disconnected. The movable block is connected with the movable contact frame through an energy storage device; two sides of the back of the movable block are oppositely provided with inwards sunken mounting grooves, and a fulcrum pressing device is mounted in each mounting groove; mounting holes are formed in the side faces of the movable blocks below the mounting grooves, and auxiliary pressing devices are mounted in the mounting holes; the body on both sides of the energy storage tank is provided with an output end piece, the side edge of the output end piece extends towards the inside of the body to form a support, and a triangular flange is arranged on the side edge of one side of the support, which is far away from the output end piece; a movable contact spring is arranged between the triangular flange and the fulcrum pressing device, and the bottom end of the movable contact spring is fixedly connected with a movable contact; the two sides of the front surface of the body are both provided with fixed contact pieces, and the vertical part of the end of each fixed contact piece extending towards the inner side of the body is connected with a fixed contact; the inner side wall surfaces at the two sides of the body are respectively provided with a triangular lug which is matched with the auxiliary pressing device; the switch is made to reduce the gas discharge time.
Description
Technical Field
The invention relates to the field of switches, in particular to an electric tool switch with quick breaking.
Background
The switch is a device which can switch on or off the current in the whole circuit loop, particularly in a main control circuit, if the switch is switched on and fails, the whole circuit cannot work, equipment and machinery cannot be used, and if the switch is switched off and fails, the current is switched on for a long time, so that safety accidents are easily caused. The switch contacts are usually made of silver alloy, and when the switch is turned on and off, gas discharge is generated between the contacts due to the characteristics of current and voltage, sparks are generated, and electric corrosion is generated. The switch failure is generally caused by that the switch contact is subjected to large electric corrosion when being switched on and switched off, and the silver alloy on the contact splashes or is gasified and lost; absent a silver alloy contact, the bond or discontinuity occurs very quickly. The switch is thus disabled, causing a short circuit or an open circuit in the circuit. The gas discharge between the contacts is reduced or avoided, a simpler and effective method is to shorten the switching time of the contacts between connection and disconnection, a special mechanism is adopted to ensure that the switching of the contacts between connection and disconnection is instantaneous action, the realization is very fast, the gas discharge between the contacts is reduced, and the loss of the material of the contact surface is reduced or eliminated. Thus, the service life of the switch can be ensured.
The general design on the market is as shown in fig. 1-fig. 2: in the main body 49 of the switch, a fixed contact piece 50 is installed at the bottom of one side, one end of the fixed contact piece 50 extends into the main body 49 and is riveted with a fixed contact 50, a screw 51 is arranged at the other end of the fixed contact piece for connecting a power line, a fixed piece 47 is installed at the other side of the main body 49 and is used for connecting a machine and outputting, a movable contact piece 48 which is contacted together in use is installed on the fixed piece 47, a movable contact 53 is riveted at one end of the movable contact piece 48, a main spring 54 is installed at the bottom of the movable contact frame 44, special slotted holes are formed in two sides of the movable contact frame 44, a fulcrum 45 and a fulcrum spring 46 are installed in the special slotted holes, an upper cover 43 covers the main body 49, and a pressing. When the movable contact frame 44 is pressed, the movable contact frame 44 drives the fulcrum 45 to move downwards together, the movable contact 48 is pressed on the fixed sheet 47 by the fulcrum under the action of the fulcrum spring 46, the fulcrum slides on the surface of the movable contact 48 and climbs, after the movable contact 48 slides over the salient point of the fixed sheet, the movable contact 48 starts to generate a seesaw movement due to the pressure, and the movable contact 53 is connected with the fixed contact 52 downwards. The switch is energized.
The disadvantages of the generic design are: the contact is connected quickly and slowly according to the speed of the movable contact frame 44 when being pressed down and the linear area of the end surface of the convex point of the position of the fixed piece 47 for supporting the movable contact piece 48, the movable contact piece moves quickly when the pressing speed is high, the contact is closed quickly, and the contact is closed slowly when the pressing speed is low. The salient points of the fixed sheet 47 have narrow line shape of the end surface, so the movable contact is closed quickly, the wide line shape is closed slowly, even long-time contact-like non-contact can be generated, and very serious electrical erosion is caused.
Disclosure of Invention
The invention aims to provide an electric tool switch with quick breaking, which reduces the time of a process of switching on a movable contact and a fixed contact, reduces the gas discharge time and reduces the corrosion of electric sparks.
The technical scheme of the invention is as follows:
the electric tool switch with quick breaking comprises a body and a movable block arranged in the center of the body; a movable contact frame capable of moving up and down is arranged in a first through hole in the center of the movable block, and a main spring is arranged in a second through hole in the center of the movable contact frame; the back of the movable block is connected with the back of the movable contact frame through an energy storage device; two sides of the back of the movable block are oppositely provided with inwards sunken mounting grooves, and a fulcrum pressing device is mounted in each mounting groove; mounting holes are formed in the side faces of the movable blocks below the mounting grooves, and auxiliary pressing devices are mounted in the mounting holes; the body on both sides of the energy storage tank is provided with an output end piece, the side edge of the output end piece extends towards the inside of the body to form a support, and a triangular flange is arranged on the side edge of one side of the support, which is far away from the output end piece; a movable contact spring is arranged between the triangular flange and the fulcrum pressing device, and the bottom end of the movable contact spring is fixedly connected with a movable contact; the two sides of the front surface of the body are both provided with fixed contact pieces, and the vertical part of the end of the fixed contact piece extending towards the inner side of the body is connected with a fixed contact; and triangular lugs matched with the auxiliary pressing device are arranged on the inner side wall surfaces of the two sides of the body.
The energy storage device comprises an energy storage groove arranged on the back of the movable block, a first quick spring is installed in the energy storage groove, guide grooves are formed in the upper end and the lower end of the energy storage groove, and an upper block and a lower block which can stretch into the guide grooves are arranged on the back of the movable contact frame. Meanwhile, the movable contact frame is provided with an upper block and a lower block which extend into an energy storage groove of the movable block, wherein the movable block is provided with a quick spring; through setting up the direction fluting, on the one hand play the effect of direction to upper and lower piece, on the other hand still has spacing effect.
The auxiliary pressing device comprises an auxiliary block and an auxiliary spring which are arranged in the round hole. Two side ends of the movable block are respectively provided with a round hole, and an auxiliary block and an auxiliary spring are arranged inside the round holes; the middle of the movable block is provided with a groove, and a first quick spring is arranged in the groove; the end surface of the auxiliary block is hemispherical, when the switch is in an off state, the hemisphere of the auxiliary block is arranged at the upper end of the triangular lug, and the hemisphere surface is in contact with the upper inclined surface of the lug; when the switch is in a switch-on state, the hemisphere of the auxiliary block is arranged at the lower end of the triangular lug, and the hemisphere surface is in contact with the lower inclined surface of the lug.
The fulcrum pressing device comprises a fulcrum arranged in the mounting groove and used for pressing the movable contact piece, and a fulcrum spring for keeping pressure for the fulcrum and the movable contact piece. The left side and the right side of the movable block are respectively provided with a symmetrical cavity, and a fulcrum for pressing on the movable contact piece and a fulcrum spring for keeping pressure for the fulcrum and the movable contact piece are arranged in the cavity.
The upper end of the body is provided with an upper cover. The upper cover is installed, so that dust is prevented from entering the body, and parts inside the body can be protected.
And a sealing sleeve is arranged between the upper cover and the movable contact frame. A sealing sleeve is arranged between the upper cover and the movable contact frame and used for preventing dust from entering the body along with the up-and-down movement of the movable contact frame.
The middle parts of the outer side wall surfaces of the two sides of the body are provided with first steps. A labyrinth design is formed by combining the first step, the top surface of the body and the upper cover, so that the body and the upper cover are in a labyrinth design, and dust can be effectively prevented from entering the body and the upper cover.
The movable contact is spherical. And the spherical contact is adopted, so that the contact effect is better.
The edge of the top surface of the body is bent inwards to form a limiting hook. The movable block is limited in the body by the internal limiting hook of the body.
And one end of the fixed contact piece positioned on the outer side of the body is in threaded connection with the power line. The body has threads extending to the outside of the body and screws are screwed thereon for connection to a power cord.
The two sides of the bottom end of the movable contact frame are oppositely provided with tail hooks, and the two sides of the bottom surface of the movable block are provided with limiting slots matched with the tail hooks for use. At ordinary state, the main spring gives the movable contact frame an ascending ejection force all the time, because the tail colludes and is located spacing fluting and stretches out outside spacing fluting for movable contact frame top position is spacing, makes this ascending ejection force collude through the tail of movable contact frame afterbody, shifts for the movable block.
The invention has the beneficial effects that: the switch is provided with a body, one side of the body is fixedly provided with an output end sheet, a support body is designed at the position where an output terminal is communicated with the inside of the body, the other side of the body is provided with a fixed contact sheet, and one end of the fixed contact sheet is riveted with a fixed contact; the center of the inside of the body is provided with a movable block. The center of the movable block is provided with a movable contact frame, a hole is arranged in the movable contact frame, and a main spring for total reset is arranged in the hole; the movable contact piece is arranged on the bracket of the output end piece and is always kept in contact with the bracket, and the other end of the movable contact piece is riveted with a spherical movable contact; the auxiliary pressing device is arranged at the upper end of the triangular lug when the switch is in an off state, and the auxiliary pressing device is in contact with the upper inclined plane of the lug. When the switch is in a switch-on state, the auxiliary pressing device is arranged at the lower end of the triangular lug and is in contact with the lower inclined surface of the lug.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Wherein: FIG. 1 is a schematic diagram of a general design architecture;
FIG. 2 is a schematic diagram of a main spring structure in a general design;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a schematic view of a first quick spring according to the present invention;
FIG. 5 is a schematic view of the movable contact spring structure of the present invention;
FIG. 6 is a schematic view of a guide slot configuration of the present invention;
in the drawing, 1 is a sealing sleeve, 2 is an upper cover, 3 is a movable contact frame, 4 is a fulcrum spring, 5 is a fulcrum, 6 is an auxiliary block, 7 is an auxiliary spring, 8 is a body, 9 is a fixed contact piece, 10 is a movable contact piece, 11 is a screw, 12 is an output end piece, 13 is a first quick spring, 14 is a movable contact, 15 is a fixed contact, 16 is a main spring, 17 is a movable block, 18 is a mounting groove, 19 is a mounting hole, 20 is a support, 21 is a triangular flange, 22 is a triangular lug, 23 is an energy storage groove, 24 is a guide slot, 25 is an upper block, 26 is a lower block, 27 is a first step, 28 is a limit hook and 29 is a tail hook.
Detailed Description
Referring to fig. 3 to 6, the power tool switch with quick disconnection includes a body and a movable block installed at the center of the body; a movable contact frame capable of moving up and down is arranged in a first through hole in the center of the movable block, and a main spring is arranged in a second through hole in the center of the movable contact frame; the back of the movable block is connected with the back of the movable contact frame through an energy storage device; two sides of the back of the movable block are oppositely provided with inwards sunken mounting grooves 18, and a fulcrum pressing device is mounted in each mounting groove; mounting holes 19 are formed in the side faces of the movable blocks below the mounting grooves, and auxiliary pressing devices are mounted in the mounting holes; output end pieces are arranged on the bodies on the two sides of the energy storage tank 23, the side edges of the output end pieces extend towards the inside of the body to form a support, and triangular flanges are arranged on the side edges of the support far away from the output end pieces; a movable contact spring is arranged between the triangular flange and the fulcrum pressing device, and the bottom end of the movable contact spring is fixedly connected with a movable contact; the two sides of the front surface of the body are both provided with fixed contact pieces, and the vertical part of the end of the fixed contact piece extending towards the inner side of the body is connected with a fixed contact; and triangular lugs matched with the auxiliary pressing device are arranged on the inner side wall surfaces of the two sides of the body. The switch is provided with a body 8, one side of the body is fixedly provided with an output end sheet 12, a support body 20 is designed at the position where the output end sheet 12 is communicated with the inside of the body, the other side of the body is provided with a fixed contact sheet 9, and one end of the fixed contact sheet 9 is riveted with a fixed contact 15; a movable block 17 is arranged in the center of the body 8, a movable contact frame 3 is arranged in the center of the movable block, a hole is arranged in the movable contact frame 3, and a main spring 16 for total reset is arranged in the hole; the movable contact piece 10 is arranged on the bracket of the output end piece 12 and is always kept in contact with the output end piece, and the other end of the movable contact piece 10 is riveted with a spherical movable contact 14; two inner side wall surfaces of the body 8 are respectively provided with a triangular lug 22 with an inclined surface, the auxiliary pressing device is arranged at the upper end of the triangular lug 22 when the switch is in an off state, and the auxiliary pressing device is contacted with the upper inclined surface of the lug 22. The auxiliary pressing device is arranged at the lower end of the triangular lug 22 in the switch-on state, and the auxiliary pressing device is in contact with the lower inclined surface of the lug 22.
The energy storage device comprises an energy storage groove arranged on the back of the movable block, a first quick spring is installed in the energy storage groove, guide grooves 24 are formed in the upper end and the lower end of the energy storage groove, and an upper block and a lower block which can stretch into the guide grooves are arranged on the back of the movable contact frame. Meanwhile, the movable contact frame 3 is provided with an upper block 25 and a lower block 26 which extend into an energy storage groove of the movable block 17 provided with the quick spring 13; through setting up the direction fluting, on the one hand play the effect of direction to upper and lower piece, on the other hand still has spacing effect.
The auxiliary pressing device comprises an auxiliary block and an auxiliary spring which are arranged in the round hole. Two side ends of the movable block 17 are respectively provided with a round hole, the inside of the movable block is provided with the auxiliary block 6 and the auxiliary spring 7, the middle of the movable block 17 is provided with a groove, and the inside of the movable block is provided with the quick spring 13; the end face of the auxiliary block 6 is hemispherical, and when the switch is in an off state, the hemisphere of the auxiliary block is arranged at the upper end of the triangular lug 22, and the hemisphere face is in contact with the upper inclined face of the lug 22. When the switch is in an on state, the hemisphere of the auxiliary block is arranged at the lower end of the triangular lug 22, and the hemisphere surface is contacted with the lower inclined surface of the lug 22.
The fulcrum pressing device comprises a fulcrum arranged in the mounting groove and used for pressing the movable contact piece, and a fulcrum spring for keeping pressure for the fulcrum and the movable contact piece. The left side and the right side of the movable block 17 are respectively provided with a symmetrical cavity, and a fulcrum 5 used for pressing the movable contact piece 10 and a fulcrum spring 4 used for keeping pressure for the fulcrum 5 and the movable contact piece 10 are arranged in the cavity.
The movable contact is spherical. And the spherical contact is adopted, so that the contact effect is better.
The upper end of the body is provided with an upper cover. The upper cover is installed, so that dust is prevented from entering the body, and parts inside the body can be protected.
And a sealing sleeve 1 is arranged between the upper cover and the movable contact frame. A sealing sleeve 1 is arranged between the upper cover 2 and the movable contact frame 3 and is used for preventing dust from entering the body 8 along with the up-and-down movement of the movable contact frame 3.
The middle parts of the outer side wall surfaces of two sides of the body are provided with first steps 27. A labyrinth design is formed by combining the first step, the top surface of the body and the upper cover, so that the body 8 and the upper cover 2 are in the labyrinth design, and dust can be effectively prevented from entering.
The edges of the top surface of the body are bent inwards to form limiting hooks 28. The movable block 17 is limited in the body 8 by an internal limit hook 28 of the body 8.
And one end of the fixed contact piece positioned on the outer side of the body is in threaded connection with the power line. Extending to the exterior of the body is a screw thread with a screw 11 for connection to a power cord.
Two sides of the bottom end of the movable contact frame are oppositely provided with tail hooks 29, and two sides of the bottom surface of the movable block are provided with limiting slots matched with the tail hooks for use. In a normal state, the main spring 16 always gives an upward ejection force to the movable contact frame 3, and the tail hook is positioned in the limiting groove and extends out of the limiting groove, so that the position above the movable contact frame is limited, and the upward ejection force is transferred to the movable block through the tail hook at the tail part of the movable contact frame 3.
The following description of the motion is specifically provided:
1. in the initial state, due to the action of the main spring 16, the tail of the movable contact frame 3 hooks the G to prop against the movable block 17, so that the movable block 17 is at the maximum propping position and is hooked by the limiting hook 28 of the body 8 without being popped out of the body, and the whole body is formed. The fulcrum 5 in the movable block 17 presses the movable contact 10 on the support 20 of the output contact piece 12 under the action of the fulcrum spring 4, a triangular step is arranged in the support 20, the highest point is 21 points, the movable contact stays on the upper inclined plane of the 21 points of the support 20, and the half end tilts. The upper end of the upper block 25 of the movable contact frame is contacted with the upper end of the sliding chute of the energy storage groove of the movable block, the upper end surface of the lower block 26 extrudes the quick spring 13 and enables the quick spring to be compressed, and the upward compression force is combined with the limiting hook 28 on the body 8 and the upward force generated by the upper inclined end surfaces of the auxiliary block 6 and the body convex block 22, so that the movable block is stabilized in the body and does not move. At this time, the movable contact and the fixed contact are at the farthest distance, and the switch is in an off hold state.
2. The moving contact frame 3 of the switch is pressed downwards, at this time, the moving contact frame 3 goes downwards, and the lower block 26 on the moving contact frame 3 gradually releases the upward pressure on the quick spring until the pressure becomes zero. The movable block 17, still stationary, is in the off-state as other forces are still present.
3. The movable contact frame 3 is pressed downwards continuously, at the same time, the upper block 25 of the movable contact frame begins to press the quick spring 13, the movable block 17 begins to move downwards, but because the auxiliary block 6 is acted by the upward force of the convex block 22 on the body 8, the fulcrum 5 and the fulcrum spring 4 act on the movable contact piece 10, the movable contact piece 10 is acted by the upward oblique force of the triangular platform in the bracket 20 on the output end piece 12, and therefore the movable block 17 is kept still. Until the lower end surface of the upper block 25 contacts with the upper end surface of the guide slot in the energy storage slot of the movable block 17. The movable contact frame 3 starts to force the movable block 17 to move downwards
4. And then the movable contact frame 3 is continuously pressed, the upper block 25 in the movable contact frame 3 forces the movable block 17 to move downwards together, at this time, the auxiliary block 6 contracts towards the inside of the groove of the movable block 17 under the action of the lug 22 on the body 8 and extrudes the auxiliary spring 7, the movable block 17 simultaneously drives the fulcrum 5 to move downwards, and the fulcrum spring is compressed under the action of the triangular projection on the upper bracket 20 of the output end sheet 12, when the central point of the fulcrum 5 reaches the highest point 21 of the bracket 20, the auxiliary block 6 also reaches the highest points of the two lugs 22 in the body 8, at this time, the auxiliary spring, the fulcrum spring and the quick spring are all in the maximum compression state, and great energy is stored.
5. The movable block 17 is moved downwards again by pressing down the movable contact frame 3, and at this time, the hemispherical end face of the auxiliary block 6 is acted by the lower inclined face of the triangular end face of the convex block 22 of the body 8 under the action of the auxiliary spring to generate a downward acting force. The fulcrum 5 is acted by the fulcrum spring 4, passes through the point 21 on the bracket 20 and is acted by a downward force. The quick spring 13 is pressed by the lower end face of the upper block 25 on the movable contact frame 3 to give a downward force to the movable block 17. Under the combined action of several downward forces, the movable block 17 moves rapidly downward, and at the same time, the fulcrum presses the movable contact 10 to move it together to make a seesaw motion, so that the movable contact 14 is closed with the fixed contact 15 at the fastest speed. At which time the switch is on.
6. The movable contact frame 3 is pressed, the switch is in a stable contact state, the auxiliary block is positioned at the lower bevel edge of the triangle of the convex block 22 of the body 8, the fulcrum 5 is positioned below the high point 21 of the bracket 20, and the upper block 25 of the movable contact frame compresses the quick spring 13 again.
7. When the movable contact frame 3 is released, the movable contact frame 3 bounces and the movable block 17 rises. All parts move as when the moving contact 3 is pushed, but in the opposite direction, until the switch returns to its original initial state.
Thus, the switch is not affected by the moving speed of the movable contact frame 3 whether the switch is on or off. Therefore, the process time of the connection of the movable contact and the fixed contact is shortened, the gas discharge time is shortened, and the corrosion of electric sparks is reduced. Increase of life
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiment according to the present invention are within the scope of the present invention.
Claims (11)
1. The electric tool switch with quick breaking comprises a body and a movable block arranged in the center of the body; a movable contact frame capable of moving up and down is arranged in a first through hole in the center of the movable block, and a main spring is arranged in a second through hole in the center of the movable contact frame; the movable contact device is characterized in that the back of the movable block is connected with the back of the movable contact frame through an energy storage device; two sides of the back of the movable block are oppositely provided with inwards sunken mounting grooves, and a fulcrum pressing device is mounted in each mounting groove; mounting holes are formed in the side faces of the movable blocks below the mounting grooves, and auxiliary pressing devices are mounted in the mounting holes; the energy storage device comprises an energy storage groove arranged on the back of the movable block, output end pieces are arranged on the bodies on the two sides of the energy storage groove, the side edges of the output end pieces extend towards the inside of the bodies to form a support, and a triangular flange is arranged on the side edge of one side of the support, which is far away from the output end pieces; a movable contact spring is arranged between the triangular flange and the fulcrum pressing device, and the bottom end of the movable contact spring is fixedly connected with a movable contact; the two sides of the front surface of the body are both provided with fixed contact pieces, and the vertical part of the end of the fixed contact piece extending towards the inner side of the body is connected with a fixed contact; and triangular lugs matched with the auxiliary pressing device are arranged on the inner side wall surfaces of the two sides of the body.
2. The electric tool switch with the quick breaking function according to claim 1, wherein a first quick spring is installed in the energy storage groove, guide grooves are formed in the upper end and the lower end of the energy storage groove, and an upper block and a lower block which can extend into the guide grooves are arranged on the back of the movable contact frame; meanwhile, the movable contact frame is provided with an upper block and a lower block which extend into an energy storage groove of the movable block, wherein the movable block is provided with a quick spring; through setting up the direction fluting, on the one hand play the effect of direction to upper and lower piece, on the other hand still has spacing effect.
3. The power tool switch with quick disconnection of claim 1, wherein the auxiliary pressing means comprises an auxiliary block and an auxiliary spring installed in the circular hole.
4. A power tool switch with a quick disconnect according to claim 1, wherein said fulcrum pressing means includes a fulcrum mounted in the mounting groove for pressing the movable contact piece, and a fulcrum spring for giving a holding force to the fulcrum and the movable contact piece.
5. The power tool switch with quick disconnection of claim 1, wherein the upper end of the body is provided with an upper cover.
6. An electric tool switch with quick disconnection according to claim 5, wherein a sealing sleeve is arranged between the upper cover and the movable contact frame.
7. The electric tool switch with quick disconnection as claimed in claim 5, wherein the body has first steps at the middle of the outer side wall surfaces of both sides.
8. An electric tool switch with quick disconnect of claim 5, characterized in that the moving contact is ball shaped.
9. The power tool switch with quick disconnect of claim 1, wherein the body top surface edges are all bent inward to form a retaining hook.
10. The power tool switch with quick disconnect of claim 1, wherein the end of the fixed contact piece located outside the body is threaded to a power cord.
11. The power tool switch with the quick breaking function according to claim 1, wherein the movable contact frame is provided with tail hooks at two opposite sides of the bottom end thereof, and the movable block is provided with limiting slots at two sides of the bottom surface thereof for matching with the tail hooks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920272211.9U CN210272121U (en) | 2019-03-04 | 2019-03-04 | Electric tool switch with quick breaking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920272211.9U CN210272121U (en) | 2019-03-04 | 2019-03-04 | Electric tool switch with quick breaking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210272121U true CN210272121U (en) | 2020-04-07 |
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ID=70010267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920272211.9U Active CN210272121U (en) | 2019-03-04 | 2019-03-04 | Electric tool switch with quick breaking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210272121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109994330A (en) * | 2019-03-04 | 2019-07-09 | 常州云杰电器有限公司 | Power tool switch with quick disconnect |
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2019
- 2019-03-04 CN CN201920272211.9U patent/CN210272121U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109994330A (en) * | 2019-03-04 | 2019-07-09 | 常州云杰电器有限公司 | Power tool switch with quick disconnect |
| CN109994330B (en) * | 2019-03-04 | 2024-10-29 | 常州云杰电器有限公司 | Electric tool switch with quick breaking function |
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