CN112636080A

CN112636080A - Plug for overcurrent protection automatic power off and disconnection of electric wire

Info

Publication number: CN112636080A
Application number: CN202110025955.2A
Authority: CN
Inventors: 王英艳
Original assignee: Shanghai Yangqi Electronic Technology Co ltd
Current assignee: Shanghai Yangqi Electronic Technology Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-04-09

Abstract

The invention discloses a plug for overcurrent protection automatic power-off disconnection of an electric wire, which comprises a plug, wherein a motor cavity is arranged in the plug, the left end of the plug is fixedly connected with a pin which is symmetrical up and down and takes the central line of the plug as a symmetrical shaft, the inner wall of the right side of the motor cavity is fixedly connected with a motor, the left end of the motor is in power connection with an output shaft, the periphery of the output shaft is fixedly connected with an output bevel gear, the upper end and the lower end of the output bevel gear are in meshing connection with a symmetrical bevel gear which is symmetrical up and down and takes the central line of the output shaft as a symmetrical shaft, and the end, which is far away from each other, of the symmetrical bevel gear is fixedly connected with a symmetrical rotating shaft. Preventing fire caused by overcurrent.

Description

Plug for overcurrent protection automatic power off and disconnection of electric wire

Technical Field

The invention relates to the related technical field of overcurrent protection circuit devices, in particular to a plug for automatically cutting off and connecting a wire in overcurrent protection.

Background

At present, more and more electrical appliances are used in a home, overcurrent can be caused by using too many electrical appliances, a fuse can be directly blown off when overcurrent occurs, the fuse is troublesome to replace, current leakage or fire can be caused by overcurrent sometimes, and therefore when overcurrent occurs, a plug is pulled down immediately to disconnect the plug and an electric wire, so that the fire is prevented.

Disclosure of Invention

In order to solve the problems, the plug for the overcurrent protection automatic power-off disconnection electric wire is designed in the embodiment, and comprises a plug, a motor cavity is arranged in the plug, the left end of the plug is fixedly connected with vertically symmetrical bolts taking the central line of the plug as a symmetrical axis, the inner wall of the right side of the motor cavity is fixedly connected with a motor, the left end of the motor is in power connection with an output shaft, the periphery of the output shaft is fixedly connected with an output bevel gear, the upper end and the lower end of the output bevel gear are in meshing connection with vertically symmetrical bevel gears taking the central line of the output shaft as a symmetrical axis, one ends of the symmetrical bevel gears, which are far away from each other, are fixedly connected with symmetrical rotating shafts, the periphery of the symmetrical rotating shafts is fixedly connected with a right belt wheel, a bolt is arranged in the bolt, the left side of the symmetrical rotating shafts is provided with a left belt, one end of the threaded shaft, which is close to each other, is rotatably connected to the inner wall of one side, which is close to each other, of the belt cavity, a transverse belt is connected between the left belt wheel and the right belt wheel, one side, which is far away from each other, of the belt cavity is provided with a threaded slider cavity, one end, which is far away from each other, of the threaded shaft is rotatably connected to the inner wall of one side, which is far away from each other, of the threaded slider cavity, the outer periphery of the threaded shaft is in threaded connection with a threaded slider, one end, which is far away from each other, of the threaded slider is fixedly connected with a baffle, one side, which is close to each other, of the threaded slider is provided with a trapezoidal block, the right end of the trapezoidal block is fixedly connected with a rack, the right side of the threaded slider cavity is provided with a rack cavity with a leftward opening, the, the periphery of the thin screw rod is in threaded connection with a small sliding block, one end of the small sliding block, which is far away from each other, is fixedly connected with a stop block, one side of the threaded sliding block cavity, which is far away from each other, is provided with a pushing cavity with a left opening, the inner wall of the right side of the pushing cavity is fixedly connected with a fixed shell, a pushing column cavity with a left opening is arranged in the fixed shell, a pushing column is slidably connected in the pushing column cavity, the right end of the pushing column is fixedly connected with a stop block, the right end of the stop block is fixedly connected with a pushing spring, the right end of the pushing spring is fixedly connected with the inner wall of the right side of the pushing column cavity, the stop block penetrates through the inner wall of the end, which is close to each other, when a circuit overflows, the motor is started, the output shaft is driven to rotate, the, thereby driving the horizontal belt to rotate, further driving the left belt wheel to rotate, further driving the threaded shaft to rotate, further driving the threaded slider to move to a side close to each other, further driving the baffle to move to a side close to each other, thereby playing a role of opening the push cavity, moving the threaded slider to a side close to each other, further driving the threaded slider to be in contact connection with the trapezoidal block, further driving the trapezoidal block to move rightwards, further driving the rack to move rightwards, further driving the internal gear to rotate, further driving the thin screw rod to rotate, further driving the small slider to move to a side close to each other, further driving the stopper to move to a side close to each other, thereby disengaging the stopper from contact connection with the stopper, the push spring will release energy, thereby ejecting the push pillar leftwards, thereby pushing the plug out of the socket and disconnecting the plug from the socket to cut off the power.

Beneficially, the outer periphery of the output shaft is in threaded connection with a threaded sliding block, one end, away from each other, of the threaded sliding block is in contact connection with a symmetrical sliding block, one end, away from each other, of the symmetrical sliding block is fixedly connected with a thin rod, one end, away from each other, of the thin rod is fixedly connected with a moving rod, the upper side and the lower side of a motor cavity are provided with an opening cavity which is symmetrical up and down and takes a motor cavity central line as a symmetrical axis, the moving rod is in sliding connection in the opening cavity, the right end of the moving rod is fixedly connected with a clamping column, the right end of a plug is fixedly connected with a clamping column support which is symmetrical up and down and takes the plug central line as a symmetrical axis, the clamping column is in sliding connection in the clamping column support, the right end of the plug is provided with an opening chute which is opened right, electric wires are in sliding connection in the opening, the clamping column is connected in the clamping groove in a sliding manner, the right end of the motor is connected with a right output shaft in a power mode, an electric wire inner cavity with a left opening is arranged in the electric wire, the right output shaft is connected in the electric wire inner cavity in a threaded manner, when the output shaft rotates, reciprocating threads are arranged on the periphery of the output shaft to drive the threaded sliding block to move leftwards, further drive the symmetrical sliding blocks to move towards one side away from each other, further drive the thin rods to move towards one side away from each other, further drive the moving rods to move towards one side away from each other, further drive the clamping column to move towards one side away from each other, so that the clamping column is separated from the clamping groove, at the moment, the right end of the motor is started to further drive the right output shaft to rotate, further drive the electric wire to move rightwards, and, thereby playing the function of disconnecting the plug and the electric wire.

Beneficially, gear cavities are arranged on the upper side and the lower side of the motor cavity and are symmetrical up and down with the center line of the motor cavity as a symmetry axis, a pusher cavity with an opening towards one side away from each other is arranged in the symmetry axis, a pusher is fixedly connected to the inner wall of one side close to each other of the pusher cavities, one end far away from each other of the pusher is dynamically connected with a push rod, an outer rotating shaft is arranged on one side far away from each other of the symmetry axis, one end far away from each other of the outer rotating shaft is rotatably connected to the inner wall of one side far away from each other of the gear cavities, an open slot with an opening towards one side away from each other is arranged in the outer rotating shaft, an outer bevel gear is fixedly connected to the periphery of the outer rotating shaft, the rear end of the outer bevel gear is in meshing connection with a rear bevel gear, the rear end of the, the left end of the pull rope is fixedly connected to the right end of the limiting block, when the push column needs to be reset, the pusher is started at the moment, the push rod is driven to move towards one end away from each other, so that the push rod and the open slot are in a connection state, when the symmetrical rotating shaft rotates, the outer rotating shaft is driven to rotate, the outer bevel gear is driven to rotate, the rear rotating shaft is driven to rotate, the winding wheel is driven to rotate, the pull rope is driven to move rightwards, the limiting block is driven to move rightwards, the push column is driven to move rightwards, and therefore the function of resetting the push column is achieved.

Beneficially, the right end of the trapezoidal block is fixedly connected with a small spring, the right end of the small spring is fixedly connected to the inner wall of the rack cavity, one ends, far away from each other, of the symmetrical sliding blocks are fixedly connected with a thin spring, one ends, far away from each other, of the thin springs are fixedly connected to the inner walls of the upper side and the lower side of the motor cavity, the small spring has a function of resetting the trapezoidal block, and the thin spring has a function of resetting the symmetrical sliding blocks.

The left side and the right side of the symmetrical sliding block are provided with bilaterally symmetrical protective plates taking the center line of the symmetrical sliding block as a symmetry axis, the protective plates are fixedly connected to the inner wall of the motor cavity, and the protective plates play a role in preventing the threaded sliding block from contacting other parts.

The invention has the beneficial effects that: when having detected electrical apparatus and having crossed the current, need the auto-power-off to protect electrical apparatus, pull out the plug automatically and make electrical apparatus outage, if the tension that the plug was inserted is difficult to oneself drop also can break away from the connection with plug and electric wire simultaneously to played the function that makes electrical apparatus disconnected, prevented to cross the current and the conflagration that leads to takes place.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of an overcurrent protection automatic power-off wire-disconnecting plug according to the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1.

Fig. 3 is an enlarged schematic view of B in fig. 1.

Fig. 4 is an enlarged schematic view of C in fig. 1.

Fig. 5 is a schematic diagram of the structure D-D in fig. 2.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The plug for overcurrent protection automatic power-off disconnection of the electric wire comprises a plug 11, a motor cavity 12 is arranged in the plug 11, the left end of the plug 11 is fixedly connected with vertically symmetrical bolts 18 taking the central line of the plug 11 as a symmetrical axis, the inner wall of the right side of the motor cavity 12 is fixedly connected with a motor 56, the left end of the motor 56 is in power connection with an output shaft 52, the periphery of the output shaft 52 is fixedly connected with an output bevel gear 53, the upper end and the lower end of the output bevel gear 53 are in meshing connection with vertically symmetrical bevel gears 65 taking the central line of the output shaft 52 as a symmetrical axis, one ends of the symmetrical bevel gears 65 far away from each other are fixedly connected with symmetrical rotating shafts 13, the periphery of the symmetrical rotating shafts 13 is fixedly connected with right belt wheels 64, the bolts 18 are arranged in the plug 18, the left side of the symmetrical rotating shafts 13 is provided with a left belt, one end of the threaded shaft 31 close to each other is rotatably connected to the inner wall of one side of the belt cavity 30 close to each other, a transverse belt 46 is connected between the left belt wheel 51 and the right belt wheel 64, one side of the belt cavity 30 far away from each other is provided with a threaded slider cavity 32, one end of the threaded shaft 31 far away from each other is rotatably connected to the inner wall of one side of the threaded slider cavity 32 far away from each other, the periphery of the threaded shaft 31 is in threaded connection with a threaded slider 33, one end of the threaded slider 33 far away from each other is fixedly connected with a baffle 35, one side of the threaded slider 33 close to each other is provided with a trapezoidal block 50, the right end of the trapezoidal block 50 is fixedly connected with a rack 47, the right side of the threaded slider cavity 32 is provided with a rack cavity 44 with a left opening, the rack 47 is slidably connected in the rack cavity 44, the front end of the rack 47 is engaged with an internal gear 45, the lower end of the thin screw 43 is rotatably connected to the inner wall of one side of the rack cavity 44 close to each other, the outer periphery of the thin screw 43 is in threaded connection with a small sliding block 42, one end of the small sliding block 42 away from each other is fixedly connected with a stop block 41, one side of the threaded sliding block cavity 32 away from each other is provided with a pushing cavity 34 with a leftward opening, the inner wall of the right side of the pushing cavity 34 is fixedly connected with a fixed shell 37, a pushing column cavity 38 with a leftward opening is arranged in the fixed shell 37, a pushing column 36 is slidably connected in the pushing column cavity 38, the right end of the pushing column 36 is fixedly connected with a stop block 39, the right end of the stop block 39 is fixedly connected with a pushing spring 40, the right end of the pushing spring 40 is fixedly connected to the inner wall of the right side of the pushing column cavity 38, the stop block 41 penetrates through the inner wall of one end of the fixed shell 37, thereby driving the output bevel gear 53 to rotate, further driving the symmetrical bevel gear 65 to rotate, further driving the symmetrical rotating shaft 13 to rotate, further driving the right belt wheel 64 to rotate, further driving the horizontal belt 46 to rotate, further driving the left belt wheel 51 to rotate, further driving the threaded shaft 31 to rotate, further driving the threaded slider 33 to move to a side close to each other, further driving the baffle 35 to move to a side close to each other, thereby functioning to open the pushing cavity 34, moving the threaded slider 33 to a side close to each other, further driving the threaded slider 33 to contact and connect with the trapezoidal block 50, further driving the trapezoidal block 50 to move to the right, further driving the rack 47 to move to the right, further driving the internal gear 45 to rotate, further driving the thin screw 43 to rotate, further driving the small slider 42 to move to a side close to each other, and then the stop blocks 41 are driven to move towards the sides close to each other, so that the stop blocks 41 are separated from the contact connection with the limit blocks 39, the push springs 40 release energy, so that the push columns 36 are ejected leftwards, the bolt 18 is pushed out of the socket, and the bolt 18 is separated from the socket to cut off the power.

Beneficially, the outer periphery of the output shaft 52 is in threaded connection with a threaded sliding block 66, one end of the threaded sliding block 66, which is far away from each other, is in contact connection with a symmetrical sliding block 55, one end of the symmetrical sliding block 55, which is far away from each other, is fixedly connected with a thin rod 62, one end of the thin rod 62, which is far away from each other, is fixedly connected with a moving rod 15, the upper side and the lower side of the motor cavity 12 are respectively provided with an opening cavity 14, which is symmetrical up and down and has a symmetrical opening and a rightward, the moving rod 15 is slidably connected in the opening cavity 14, the right end of the moving rod 15 is fixedly connected with a clamping column 16, the right end of the plug 11 is fixedly connected with a clamping column support 17, which is symmetrical up and down and has a symmetrical shaft, the central line of the plug 11 is the symmetrical shaft, the clamping column 16 is slidably, the upper side and the lower side of the electric wire 59 are provided with clamping grooves 61 which are symmetrical up and down and have openings which are far away from each other, the clamping column 16 is connected in the clamping grooves 61 in a sliding manner, the right end of the motor 56 is connected with a right output shaft 57 in a power manner, the electric wire 59 is internally provided with an electric wire inner cavity 60 with a left opening, the right output shaft 57 is connected in the electric wire inner cavity 60 in a threaded manner, when the output shaft 52 rotates, reciprocating threads are arranged on the periphery of the output shaft 52 to drive the threaded sliding block 66 to move leftwards, further drive the symmetrical sliding block 55 to move towards the far away side, further drive the thin rod 62 to move towards the far away side, further drive the moving rod 15 to move towards the far away side, further drive the clamping column 16 to move towards the far away side, and further separate the clamping column 16 from the clamping grooves 61, at this time, the right end of the motor 56 is started, so that the right output shaft 57 is driven to rotate, and the electric wire 59 is driven to move rightwards, so that the right output shaft 57 is disconnected from the electric wire inner cavity 60, and a function of disconnecting the plug and the electric wire is achieved.

Beneficially, gear cavities 20 which are symmetrical up and down are arranged on the upper side and the lower side of the motor cavity 12 and use the center line of the motor cavity 12 as a symmetry axis, a pusher cavity 28 which is opened to the side far away from each other is arranged in the symmetry axis 13, a pusher 27 is fixedly connected to the inner wall of the side close to the pusher cavity 28, a push rod 29 is dynamically connected to the end far away from each other of the pusher 27, an outer spindle 21 is arranged on the side far away from each other of the symmetry axis 13, the end far away from each other of the outer spindle 21 is rotatably connected to the inner wall of the side far away from the gear cavity 20, an open slot 26 which is opened to the side far away from each other is arranged in the outer spindle 21, an outer bevel gear 25 is fixedly connected to the periphery of the outer spindle 21, a rear bevel gear 23 is connected to the rear end of the outer bevel gear 25 in a meshing manner, a rear rotation axis 24 is fixedly, the periphery of the winding wheel 22 is connected with a pulling rope 19 in a winding manner, the left end of the pulling rope 19 is fixedly connected to the right end of the limiting block 39, when the pushing post 36 needs to be reset, the pushing machine 27 is started at the moment, the pushing rod 29 is driven to move towards the end away from each other, so that the pushing rod 29 and the open slot 26 are in a connection state, when the symmetric rotating shaft 13 rotates, the outer rotating shaft 21 is driven to rotate, the outer bevel gear 25 is driven to rotate, the rear bevel gear 23 is driven to rotate, the rear rotating shaft 24 is driven to rotate, the winding wheel 22 is driven to rotate, the pulling rope 19 is driven to move rightwards, the limiting block 39 is driven to move rightwards, the pushing post 36 is driven to move rightwards, and the function of resetting the pushing post 36 is achieved.

Beneficially, the right end of the trapezoidal block 50 is fixedly connected with a small spring 49, the right end of the small spring 49 is fixedly connected to the inner wall of the rack cavity 44, the ends, away from each other, of the symmetrical sliding blocks 55 are fixedly connected with a thin spring 63, the ends, away from each other, of the thin springs 63 are fixedly connected to the inner walls of the upper side and the lower side of the motor cavity 12, the small spring 49 plays a role in resetting the trapezoidal block 50, and the thin springs 63 play a role in resetting the symmetrical sliding blocks 55.

Advantageously, the symmetrical sliding blocks 55 are provided with left and right symmetrical protection plates 54 taking the center line of the symmetrical sliding blocks 55 as the symmetry axis, the protection plates 54 are fixedly connected to the inner wall of the motor cavity 12, and the protection plates 54 play a role in preventing the threaded sliding blocks 66 from contacting other parts.

The following describes in detail the use steps of an overcurrent protection automatic power-off disconnecting plug with an electric wire with reference to fig. 1 to 5:

in the initial state, the clamping column 16 is connected with the electric wire 59, the right output shaft 57 is connected with the electric wire 59, and the push rod 29 is not connected with the open slot 26;

when the circuit is over-current, the motor 56 is started, so as to drive the output shaft 52 to rotate, further drive the output bevel gear 53 to rotate, further drive the symmetrical bevel gear 65 to rotate, further drive the symmetrical rotating shaft 13 to rotate, further drive the right belt wheel 64 to rotate, further drive the transverse belt 46 to rotate, further drive the left belt wheel 51 to rotate, further drive the threaded shaft 31 to rotate, further drive the threaded slider 33 to move towards one side close to each other, further drive the baffle 35 to move towards one side close to each other, thereby playing a role in opening the pushing cavity 34, moving the threaded slider 33 towards one side close to each other, further drive the threaded slider 33 to be in contact connection with the trapezoidal block 50, further drive the trapezoidal block 50 to move rightwards, further drive the rack 47 to move rightwards, further drive the internal gear 45 to rotate, further drive the thin screw 43 to rotate, further drive the small slider 42, and then drive the stop block 41 to move towards the side close to each other, thereby separating the stop block 41 from the contact connection with the limit block 39, the pushing spring 40 will release energy, thereby ejecting the push post 36 leftwards, thereby pushing the bolt 18 out of the socket, thereby performing the function of separating the bolt 18 from the socket and cutting off the power, when the output shaft 52 rotates, the output shaft 52 is provided with reciprocating screw threads on the periphery, thereby driving the screw thread sliding block 66 to move leftwards, thereby driving the symmetrical sliding block 55 to move towards the side away from each other, thereby driving the thin rod 62 to move towards the side away from each other, thereby driving the moving rod 15 to move towards the side away from each other, thereby driving the clamp post 16 to move towards the side away from each other, thereby separating the clamp post 16 from the clamp groove 61, at this time, the right end of the motor 56 is started, thereby driving the right output shaft 57 to rotate, when the push post 36 needs to be reset, the pusher 27 is started at this moment, and then the push rod 29 is driven to move towards the end away from each other, so that the push rod 29 and the open slot 26 are in a connected state, and when the symmetric rotating shaft 13 rotates, the outer rotating shaft 21 is driven to rotate, and then the outer bevel gear 25 is driven to rotate, and then the rear bevel gear 23 rotates, and then the rear rotating shaft 24 rotates, and then the winding wheel 22 rotates, and then the pull rope 19 is driven to move towards the right, and then the limit block 39 is driven to move towards the right, and further the push post 36 is driven to move towards the right, so that the function of resetting the push post 36 is achieved.

The invention has the beneficial effects that: when the overcurrent of the electric appliance is detected, the automatic power-off is needed to protect the electric appliance, the plug is automatically pulled down to power off the electric appliance, and the plug and the electric wire can be disconnected at the same time if the plug is too tight to fall off, so that the function of disconnecting the electric appliance is achieved, and the fire caused by overcurrent is prevented.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a plug of overcurrent protection auto-power-off disconnection electric wire, includes the plug, its characterized in that: a motor cavity is arranged in the plug, the left end of the plug is fixedly connected with a pin which is symmetrical up and down and takes the central line of the plug as a symmetrical shaft, the inner wall of the right side of the motor cavity is fixedly connected with a motor, the left end of the motor is in power connection with an output shaft, the periphery of the output shaft is fixedly connected with an output bevel gear, the upper end and the lower end of the output bevel gear are in meshing connection with a symmetrical bevel gear which is symmetrical up and down and takes the central line of the output shaft as a symmetrical shaft, the end, away from each other, of the symmetrical bevel gear is fixedly connected with a symmetrical rotating shaft, the periphery of the symmetrical rotating shaft is fixedly connected with a right belt wheel, the pin is arranged in the plug, the left side of the symmetrical rotating shaft is provided with a left belt wheel, the left belt wheel is fixedly connected with a concentric threaded, the belt cavity is provided with a threaded slide block cavity at one side far away from each other, one end of the threaded shaft far away from each other is rotatably connected to the inner wall of one side far away from each other, the threaded shaft is connected with a threaded slide block through threads at the periphery, one end of the threaded slide block far away from each other is fixedly connected with a baffle, one side of the threaded slide block near to each other is provided with a trapezoidal block, the right end of the trapezoidal block is fixedly connected with a rack, the right side of the threaded slide block cavity is provided with a rack cavity with a left opening, the rack is slidably connected in the rack cavity, the front end of the rack is engaged and connected with an internal gear, the internal gear is fixedly connected with a concentric thin screw rod, the lower end of the thin screw rod is rotatably connected to the inner wall of one side near to each other of the rack cavity, the periphery of the thin screw rod is connected with a small, promote and linked firmly the set casing on the chamber right side inner wall, be equipped with the promotion post chamber of opening left in the set casing, promote the sliding connection in post chamber and push away the post, the post right-hand member that pushes away has linked firmly the stopper, the stopper right-hand member has linked firmly push spring, push spring right-hand member links firmly promote on the post chamber right side inner wall, the dog passes on the one end inner wall that the set casing is close to each other.

2. The plug of claim 1, wherein the plug is capable of automatically breaking an electric wire under overcurrent protection, and comprises: the periphery of the output shaft is in threaded connection with a threaded sliding block, one end of the threaded sliding block, which is far away from each other, is in contact connection with a symmetrical sliding block, one end of the symmetrical sliding block, which is far away from each other, is fixedly connected with a moving rod, the upper side and the lower side of a motor cavity are provided with an opening cavity with a right opening and a vertical symmetry with the central line of the motor cavity as a symmetry axis, the moving rod is in sliding connection in the opening cavity, the right end of the moving rod is fixedly connected with a clamping column, the right end of a plug is fixedly connected with a clamping column support with the central line of the plug as the symmetry axis, the clamping column is in sliding connection in the clamping column support, the right end of the plug is provided with an opening chute with the right opening, the opening chute is in sliding connection with an electric wire, the upper side and the lower side of the electric wire are provided with, the clamping column is connected in the clamping groove in a sliding mode, the right end of the motor is connected with a right output shaft in a power mode, an electric wire inner cavity with a left opening is formed in the electric wire, and the right output shaft is connected in the electric wire inner cavity in a threaded mode.

3. The plug of claim 2, wherein the plug is capable of automatically breaking an electric wire under overcurrent protection, and comprises: gear cavities which are symmetrical up and down and take the central line of the motor cavity as a symmetrical axis are arranged on the upper side and the lower side of the motor cavity, a pusher cavity with an opening towards one side far away from each other is arranged in the symmetrical rotating shaft, a pusher is fixedly connected on the inner wall of one side of the pusher cavity close to each other, one end of the pushing machine far away from each other is dynamically connected with a push rod, one side of the symmetrical rotating shafts far away from each other is provided with an outer rotating shaft, one end of the outer rotating shaft, which is far away from each other, is rotatably connected to the inner wall of one side of the gear cavity, which is far away from each other, an open slot with an opening towards one side away from each other is arranged in the outer rotating shaft, an outer bevel gear is fixedly connected with the periphery of the outer rotating shaft, the rear end of the outer bevel gear is engaged and connected with a rear bevel gear, the rear end of the rear bevel gear is fixedly connected with a rear rotating shaft, the periphery of the rear rotating shaft is fixedly connected with a winding wheel, the periphery of the winding wheel is connected with a pull rope in a winding mode, and the left end of the pull rope is fixedly connected with the right end of the limiting block.

4. The plug of claim 1, wherein the plug is capable of automatically breaking an electric wire under overcurrent protection, and comprises: the right end of the trapezoidal block is fixedly connected with a small spring, the right end of the small spring is fixedly connected to the inner wall of the rack cavity, one ends, far away from each other, of the symmetrical sliding blocks are fixedly connected with a thin spring, and one ends, far away from each other, of the thin springs are fixedly connected to the inner walls of the upper side and the lower side of the motor cavity.

5. The plug of claim 4 for overcurrent protection automatic power off and wire connection, wherein: the left side and the right side of the symmetrical sliding block are provided with protective plates which are symmetrical left and right and take the central line of the symmetrical sliding block as a symmetrical axis, and the protective plates are fixedly connected to the inner wall of the motor cavity.