CN112821148A

CN112821148A - Safe electricity taking device

Info

Publication number: CN112821148A
Application number: CN202011634807.2A
Authority: CN
Inventors: 章德忠
Original assignee: Hangzhou Chengyi Electric Appliance Co ltd
Current assignee: Hangzhou Chengyi Electric Appliance Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-18

Abstract

The invention discloses a safe electricity taking device which comprises a plug, a socket and a safety cover, wherein the plug is arranged on the socket; the plug comprises a shell, two power taking terminals and two lead parts; a through hole is formed in the shell between the two power taking terminals, a sliding block is connected in the through hole in a sliding mode, an expansion head is arranged at one end, located in the shell, of the sliding block, and a fixing block is further arranged in the shell; the expansion head is provided with a deformation piece. The socket includes a housing; the surface of the shell is provided with a sunken part, the bottom surface of the sunken part is provided with an insertion hole, and the side wall of the sunken part is provided with a through hole; the recess is suitable for accommodating the shell; the inside of shell is provided with gets the electric subassembly. The safety cover comprises a cover plate and a rotating plate; the rotating plate is positioned between the bottom surface of the concave part and the cover plate; the rotating plate is rotatably connected to the cover plate, and a first torsion spring is arranged between the rotating plate and the cover plate. The safe electricity taking device comprises the socket, the plug and the safety cover, so that the safety of electricity utilization is guaranteed, and the risk of electric shock is reduced.

Description

Safe electricity taking device

Technical Field

The invention relates to the technical field of safe electricity utilization, in particular to a safe electricity taking device.

Background

Electric energy is an essential energy source in modern life, and household electrical equipment can normally work after electricity is required to be supplied. In order to conveniently take electricity, a socket is generally arranged on the wall to supply electricity to the electric appliance equipment. At present, the socket on the market mainly includes the shell, sets up the jack on the shell, and circuit structure installs in the shell, sets up the electrode in the jack, can accomplish when electrical equipment's plug inserts the jack and get the electricity. Such a receptacle is usually in an open state, or simply an elastic stop piece is arranged in the receptacle, which is curious and lively for children, and if a child inserts a metal object (such as stainless steel chopsticks) into the receptacle, there is a danger of electric shock. In addition, the existing plug is often electrically conductive only by contacting with the jack (i.e. the plug is not inserted in place at the moment), and if the front end of the plug has the problems of corrosion, corrosion and the like, poor contact with the socket is easily caused, thereby bringing certain potential safety hazard.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a safe power taking device which comprises a socket, a plug and a safety cover, wherein the socket is matched with the safety cover, so that power can be taken only when two power taking terminals of the plug are simultaneously inserted, and the plug can conduct electricity only when the power taking terminals are deeply inserted into the socket, so that the power utilization safety is ensured, and the risk of electric shock is reduced.

The purpose of the invention is realized by adopting the following technical scheme:

a safe electricity taking device comprises a plug, a socket and a safety cover;

the plug comprises a shell, two power taking terminals and two lead parts; the power taking terminal is fixedly connected with the shell, a first end of the power taking terminal is positioned outside the shell, and a second end of the power taking terminal is positioned inside the shell; the two lead parts are suitable for fixing an external lead, and each lead part is also provided with a power-taking abutting piece which is electrically connected with the external lead; the shell is internally provided with two reset elastic sheets and two power taking rods, the power taking rods can be rotatably connected to the shell, and the first ends of the power taking rods are electrically connected with the second ends of the power taking terminals; the two reset elastic sheets are suitable for applying mutually close elastic force to the two power taking rods so as to separate the two power taking rods from the two power taking abutting parts; a through hole is formed in the shell between the two power taking terminals, a sliding block is connected in the through hole in a sliding mode, an expansion head is arranged at one end, located in the shell, of the sliding block, a fixed block is further arranged in the shell, and the fixed block is located in the sliding direction of the sliding block; the deformation piece is arranged on the expansion head and located between the two electricity taking rods, and when the sliding block moves towards the inside of the shell, the deformation piece is suitable for being extruded and expanded between the expansion head and the fixed block so as to drive the two electricity taking rods to be away from each other to abut against the electricity taking abutting piece;

the receptacle includes a housing; the surface of the shell is provided with a sunken part, the sunken part is provided with a bottom surface and a side wall, the bottom surface of the sunken part is provided with an insertion hole, and the side wall of the sunken part is provided with a through hole; the concave part is suitable for accommodating the shell, and the jack is suitable for allowing the power taking terminal to pass through; the power taking assembly is arranged inside the shell; the electricity taking assembly comprises two conductive clamps, two conductive rods, two elastic pieces and two rotating pieces; the two conductive clamps are suitable for being electrically connected with the two power taking terminals, and the two conductive rods are suitable for being electrically connected with an external power supply; the first end of each conducting rod can be rotatably connected to the shell, and the two elastic pieces are suitable for applying elastic force which is far away from each other to the two conducting rods so as to separate the two conducting rods from the two conducting clamps; the rotating parts are provided with a first end and a second end, the middle parts of the rotating parts are rotatably connected to the shell, the first ends of the rotating parts are suitable for penetrating through the through holes and being suitable for being pushed back into the shell by the shell, and when the first ends of the two rotating parts are pushed back into the shell, the second ends of the two rotating parts are suitable for approaching each other to drive the two conducting rods to be abutted against the two conducting clamps;

the safety cover is arranged above the bottom surface of the concave part; the safety cover comprises a cover plate and a rotating plate; the rotating plate is positioned between the bottom surface of the concave part and the cover plate; the rotating plate is rotatably connected to the cover plate, and a first torsion spring is arranged between the rotating plate and the cover plate; the cover plate is provided with a first socket for the electricity taking terminal to pass through, and the first socket and the jack are positioned on the same straight line; a second socket is formed in the rotating plate, a guide plate inclining towards the bottom surface of the concave portion is arranged at the edge of the second socket, and the guide plate is suitable for shielding a part of the first socket; the rotating plate is further provided with a locking rod, the first end of the locking rod is hinged to the rotating plate, the second end of the locking rod is provided with a protrusion facing the cover plate, a second torsion spring is arranged between the locking rod and the rotating plate and is suitable for applying elasticity facing the cover plate to the second end of the locking rod, the protrusion is suitable for shielding the other part of the first socket, and the protrusion is suitable for being clamped in the other part of the first socket; get the electric terminal orientation when first socket inserts, be suitable for with the arch pushes away from another part of first socket to drive the rotor plate through the deflector simultaneously and rotate in order to expose first socket, just it is suitable for wearing out from the second socket to get the electric terminal.

Further, two lead parts are made of metal materials, and the electricity taking abutting piece is electrically connected with the lead parts.

Further, the electricity taking abutting piece and the lead part are integrally formed.

Further, the electricity taking abutting part is a metal reed.

Further, get the first end of pole with the second end of getting the electric terminal all is the hemisphere type that the radius equals, it is tangent with the second end of getting the electric terminal to get the first end of pole.

Further, the first end of the rotating member is arc-shaped.

Further, the elastic member is a spring.

Furthermore, the conductive clip comprises a first metal plate and a second metal plate which are arranged oppositely, a first metal elastic sheet is arranged on the surface of the first metal plate opposite to the second metal plate, a second metal elastic sheet is arranged on the surface of the second metal plate opposite to the first metal plate, and the first metal sheet and the second metal elastic sheet are both in a convex arc shape.

Further, the rotating plate is circular.

Furthermore, the first end of the locking rod is hinged with the rotating plate through a pin shaft.

Compared with the prior art, the invention has the beneficial effects that:

(1) in the arrangement mode of the plug, the two reset elastic sheets are suitable for applying mutually close elastic force to the two power taking rods so as to separate the two power taking rods from the two power taking abutting pieces; therefore, when the power taking terminal of the plug is just contacted with the conductive clamp of the socket, the expansion head of the sliding block is positioned in the shell, other parts are positioned outside the shell, and the external lead is not communicated with the power taking rod; and when the electrically conductive clamp of getting the electric terminal and all inserting the socket when the plug, the one end that the expansion head was kept away from to the slider will the butt on the apron of safety lid, this in-process slider has the inside motion of orientation casing promptly, and the deformation piece will be extruded then the extension at this in-process to drive two and get the electric pole and keep away from each other until and get electric butt, outside wire will get the electric pole switch-on this moment. According to the process, the plug can be electrified only after the power taking terminal of the plug is completely inserted into the conductive clamp of the socket, so that potential safety hazards caused by poor contact of the front end of the power taking terminal of the plug are avoided.

(2) In the arrangement mode of the socket, the two elastic pieces are suitable for applying elastic force which is far away from each other to the two conducting rods so as to separate the two conducting rods from the two conducting clamps; therefore, when the shell of the plug is not accommodated in the concave part of the shell, the second ends of the rotating pieces cannot be close to each other, and the two conductive clips are not electrified; and after the casing of plug held into the depressed part of shell, the first end that the rotation piece passed through the perforation will be pushed back to the shell by the casing in, correspondingly, the second end of rotation piece then can be close to each other to promote two conducting rods to with two electrically conductive clamp butt, two electrically conductive clamp circular telegrams this moment. It can be seen from the above process that the two conductive clips are powered on only after the shell of the plug is accommodated in the recessed portion, so that when the shell is not accommodated in the recessed portion, even if a child inserts the conductive clips by holding a metal object, no electric shock hazard is generated, and the safety of power utilization is ensured.

(3) In the arrangement mode of the safety cover, the guide plate is suitable for shielding one part of the first socket, and the protrusion is suitable for shielding the other part of the first socket, so that the jack of the socket is sealed, a dustproof effect is achieved, and meanwhile certain safety is achieved. And because the arch is suitable for the joint in another part of first socket, when getting electric terminal and inserting towards first socket, the arch will be pushed away from another part of first socket, has carried out the unblock to the rotor plate through getting electric terminal rather, makes it can rotate. It should be noted that the number of the first sockets is two, and the number of the protrusions matched with the first sockets is also two, so that the rotating plate can be unlocked only when the two power taking terminals are inserted simultaneously; if only when getting the electric terminal and inserting, then have a arch and first socket joint all the time to make the rotor plate be in not rotatable state, and then stopped the handheld metal object of children and inserted the possibility in the socket, guaranteed the security.

Drawings

FIG. 1 is a schematic diagram of the safety cover and the socket when the safety electricity-taking device plug is not inserted;

FIG. 2 is a schematic diagram of the safety power-taking device of the present invention when the plug is not inserted;

FIG. 3 is a schematic view of FIGS. 1 and 2 when unmated;

FIG. 4 is a schematic view of the assembled structure of FIGS. 1 and 2;

FIG. 5 is a schematic view of the socket and the safety cover of FIG. 4;

FIG. 6 is a schematic view of the plug of FIG. 4 in a state;

FIG. 7 is a schematic view of a first state of the safety cover according to the present invention;

fig. 8 is a schematic view of a second state of the safety cap according to the present invention.

In the figure: 100. a plug; 200. a socket; 300. a safety cover; 1. a housing; 11. a power taking terminal; 12. a lead part; 13. a power-taking abutting part; 14. resetting the elastic sheet; 15. taking an electric pole; 16. a slider; 161. a head is expanded; 17. a fixed block; 18. a deformation member; 2. a housing; 21. a recessed portion; 211. a jack; 212. perforating; 22. a conductive clip; 221. a first metal plate; 222. a first metal spring sheet; 223. a second metal plate; 224. a second metal dome; 23. a conductive rod; 24. an elastic member; 25. a rotating member; 31. a cover plate; 311. a first socket; 32. a rotating plate; 321. a second socket; 322. a guide plate; 33. a locking lever; 331. a protrusion; 4. an external lead.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 8, the safety electricity-taking device provided by the embodiment of the invention is shown, and includes a plug 100, a socket 200 and a safety cover 300.

Referring to fig. 2-3, 4 and 6, the plug 100 includes a housing 1, two power-taking terminals 11 and two lead portions 12; the power taking terminal 11 is fixedly connected with the shell 1, a first end of the power taking terminal 11 is positioned outside the shell 1, and a second end of the power taking terminal 11 is positioned inside the shell 1; the two lead parts 12 are suitable for fixing the external lead 4, each lead part 12 is also provided with a power taking abutting piece 13, and the power taking abutting pieces 13 are electrically connected with the external lead 4; two reset spring pieces 14 and two power taking rods 15 are further arranged in the shell 1, the power taking rods 15 are rotatably connected to the shell 1, and a first end of each power taking rod 15 is electrically connected with a second end of the power taking terminal 11; the two reset elastic sheets 14 are suitable for applying elastic force close to each other to the two power taking rods 15 so as to separate the two power taking rods 15 from the two power taking abutting pieces 13; a through hole is formed in the shell 2 between the two power taking terminals 11, a sliding block 16 is connected in the through hole in a sliding manner, an expansion head 161 is arranged at one end of the sliding block 16 positioned in the shell 1, a fixed block 17 is further arranged in the shell 1, and the fixed block 17 is positioned in the sliding direction of the sliding block 16; be provided with on the enlarged footing 161 and warp piece 18, warp piece 18 and be located between two power takeoff poles 15, when slider 16 was to casing 1 internal motion, warp piece 18 was suitable for and is extrudeed and expand between enlarged footing 161 and fixed block 17 to drive two power takeoff poles 15 and keep away from each other to with power takeoff butt piece 13 butt.

Referring to fig. 1, 3 and 4-5, a receptacle 200 includes a housing 2; the surface of the shell 2 is provided with a concave part 21, the concave part 21 is provided with a bottom surface and a side wall, the bottom surface of the concave part 21 is provided with an insertion hole 211, and the side wall of the concave part 21 is provided with a through hole 212; the recess 21 is adapted to accommodate the housing 1, and the insertion hole 211 is adapted to allow the electric terminal 11 to pass through; the inside of the shell 2 is provided with a power taking assembly; the electricity taking assembly comprises two conductive clamps 22, two conductive rods 23, two elastic pieces 24 and two rotating pieces 25; the two conductive clips 22 are adapted to be electrically connected with the two power-taking terminals 11, and the two conductive rods 23 are adapted to be electrically connected with an external power supply; a first end of each conductive rod 23 is rotatably connected to the housing 2, and the two elastic members 24 are adapted to apply an elastic force to the two conductive rods 23 away from each other to separate the two conductive rods 23 from the two conductive clips 22; the rotating members 25 have a first end and a second end, the middle of the rotating members 25 are rotatably connected to the housing 2, the first ends of the rotating members 25 are adapted to pass through the through holes 212 and are adapted to be pushed back into the housing 2 by the casing 1, and when the first ends of the two rotating members 25 are pushed back into the housing 2, the second ends of the two rotating members 25 are adapted to approach each other to bring the two conductive rods 23 into abutment with the two conductive clips 22. Specifically, the elastic member 24 is a spring.

Referring to fig. 1, 3, 4-5, and 4-8, a safety cap 300 is disposed over the bottom surface of the recess 21; the safety cover 300 includes a cover plate 31 and a rotation plate 32; the rotating plate 32 is positioned between the bottom surface of the recess 21 and the cover plate 31; the rotating plate 32 is rotatably connected to the cover plate 31, and a first torsion spring is arranged between the rotating plate 32 and the cover plate 31; the cover plate 31 is provided with a first socket 311 for the electric terminal 11 to pass through, and the first socket 311 and the jack 211 are positioned on the same straight line; a second socket 321 is formed on the rotating plate 32, a guide plate 322 inclined towards the bottom surface of the recess 21 is arranged at the edge of the second socket 321, and the guide plate 322 is suitable for shielding a part of the first socket 311; the rotating plate 32 is further provided with a locking rod 33, a first end of the locking rod 33 is hinged with the rotating plate 32, a protrusion 331 facing the cover plate 31 is arranged at a second end of the locking rod 33, a second torsion spring is arranged between the locking rod 33 and the rotating plate 32 and is suitable for applying elastic force to the second end of the locking rod 33 and facing the cover plate 31, the protrusion 331 is suitable for shielding the other part of the first socket 311, and the protrusion 331 is suitable for being clamped in the other part of the first socket 311; when the power-taking terminal 11 is inserted towards the first socket 311, the protrusion 331 is adapted to be pushed away from another portion of the first socket 311, and the guide plate 322 drives the rotating plate 32 to rotate to expose the first socket 311, and the power-taking terminal 11 is adapted to pass through the second socket 321. Specifically, the rotating plate 32 has a circular shape. A first end of the locking lever 33 is hinged to the pivotal plate 32 by a pin.

In the arrangement mode of the plug 100, the two reset spring pieces 14 are suitable for applying mutually close elastic force to the two power taking rods 15 so as to separate the two power taking rods 15 from the two power taking abutting pieces 13; therefore, when the power-taking terminal 11 of the plug 100 is just contacted with the conductive clip 22 of the socket 200, the enlarged head 161 of the slider 16 is located inside the housing 1, and the other part is located outside the housing 1, and the external wire 4 is not connected to the power-taking rod 15; when the power-taking terminal 11 of the plug 100 is fully inserted into the conductive clip 22 of the socket 200, one end of the slider 16 away from the enlarged head 161 abuts against the cover plate 31 of the safety cover 300, that is, the slider 16 moves toward the inside of the housing 1 in the process, and the deformation element 18 is squeezed and then expanded in the process (as shown by the middle deformation element 18 in fig. 3 and 4), so as to drive the two power-taking poles 15 to be away from each other until abutting against the power-taking abutting element 13, and at this time, the external lead 4 is connected with the power-taking pole 15. As can be seen from the above process, the plug 100 is powered on only after the power-taking terminals 11 of the plug 100 are all inserted into the conductive clips 22 of the socket 200, so that the potential safety hazard caused by poor contact at the front ends of the power-taking terminals 11 of the plug 100 is avoided.

In the above-mentioned arrangement of the socket 200, the two elastic members 24 are adapted to apply an elastic force to the two conductive rods 23 away from each other so as to separate the two conductive rods 23 from the two conductive clips 22; when the housing 1 of the plug 100 is not received in the recess 21 of the housing 2, the second ends of the rotating members 25 do not approach each other, and the two conductive clips 22 are not energized; after the housing 1 of the plug 100 is received in the recess 21 of the housing 2, the rotating member 25 is pushed back into the housing 2 by the housing 1 through the first end of the through hole 212, and correspondingly, the second ends of the rotating members 25 approach each other, so as to push the two conductive rods 23 to abut against the two conductive clips 22, and then the two conductive clips 22 are powered on. As can be seen from the above process, the two conductive clips 22 are energized only after the housing 1 of the plug 100 is received in the recess 21, so that when the housing 1 is not received in the recess 21, even if a child inserts a metal object into the conductive clips 22 by hand, there is no electric shock hazard, and the safety of power utilization is ensured.

In the above arrangement of the safety cover 300, the guiding plate 322 is adapted to shield a portion of the first socket 311, and the protrusion 331 is adapted to shield another portion of the first socket 311, so that the insertion hole 211 corresponding to the socket 200 is sealed, thereby playing a role of dust prevention and having certain safety. And because the protrusion 331 is adapted to be clamped in another portion of the first socket 311, when the power-taking terminal 11 is inserted towards the first socket 311, the protrusion 331 is pushed away from another portion of the first socket 311, and the rotating plate 32 is unlocked by the power-taking terminal 11, so that the rotating plate can rotate. It should be noted that the number of the first sockets 311 is two, and the number of the protrusions 331 matching with the first sockets 311 is also two, so that the rotating plate 32 can be unlocked only when two power-taking terminals 11 are inserted simultaneously; if only one power-taking terminal 11 is inserted, one protrusion 331 is always connected with the first socket 311 in a clamping manner, so that the rotating plate 32 is in a non-rotatable state, and the possibility that a metal object held by a child is inserted into the socket 200 is further eliminated. Specifically, referring to fig. 3, 4, and 7-8, it should be noted that the rotating plate 32 of fig. 8 can be obtained by rotating the rotating plate 32 in fig. 7 in the direction of the arrow; when two get electric terminal 11 and insert simultaneously, two are protruding 331 will be pushed away from first socket 311 simultaneously, and simultaneously, get electric terminal 11 and will be acted on deflector 322, because deflector 322 is towards the bottom surface slope of depressed part 21, so deflector 322 will rotate to drive rotor plate 32 and rotate, finally expose first socket 311, make get electric terminal 11 and can pass first socket 311, second socket 321 smoothly and get the electricity in getting the jack 211 that gets electric terminal 200.

In conclusion, the plug 100 is matched with the safety cover 300, so that the possibility that a metal object held by a child is inserted into the jack 211 is avoided, and the plug 100 avoids potential safety hazards caused by poor contact of the front end of the power taking terminal 11 of the plug 100; the power utilization safety of the safety power taking device is greatly improved on the whole.

In a preferred embodiment, both the lead portions 12 are made of metal, and the current-taking contact piece 13 is electrically connected to the lead portions 12. That is, in the present invention, the lead portion 12 serves as an intermediate conductive member to electrically connect the power take-up abutment 13 with the external lead wire 4.

Preferably, the current-taking abutment 13 is integrally formed with the lead portion 12. Through integrated into one piece's mode for get the processing of electric butt piece 13 and lead wire portion 12 more convenient, one process can be accomplished, has promoted production efficiency.

Preferably, the electrical contact member 13 is a metal spring. The metal spring leaves enable the electricity getting abutting piece 13 to have certain elasticity, and therefore the reliability of the electric connection between the electricity getting rod 15 and the electricity getting abutting piece 13 is guaranteed.

Preferably, the first end of the power-taking rod 15 and the second end of the power-taking terminal 11 are both in a hemispherical shape with the same radius, and the first end of the power-taking rod 15 is tangent to the second end of the power-taking terminal 11. By such arrangement, the power-taking rod 15 will always maintain the electrical connection with the power-taking terminal 11 during the rotation process. Of course, in addition to this, the two can be electrically connected by a flexible wire.

Preferably, the first end of the rotating member 25 is arc-shaped. The first end of the rotation member 25 is formed in an arc shape, so that the housing 1 of the plug 100 can be smoothly inserted into the recess 21 of the socket 200, and the blocking feeling can be reduced.

Preferably, referring to fig. 1, the conductive clip 22 includes a first metal plate 221 and a second metal plate 223 that are disposed opposite to each other, a first metal spring 222 is disposed on a surface of the first metal plate 221 opposite to the second metal plate 223, a second metal spring 224 is disposed on a surface of the second metal plate 223 opposite to the first metal plate 221, and both the first metal sheet and the second metal spring 224 are in a convex arc shape. Through the arrangement mode, a certain clamping force is formed between the first metal elastic sheet 222 and the second metal elastic sheet 224, so that the reliability of the electric connection between the electricity taking terminal 11 of the plug 100 and the conductive clip 22 is ensured.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a get electric installation safely which characterized in that: comprises a plug, a socket and a safety cover;

2. The safety power taking device according to claim 1, characterized in that: two the lead wire portion is the metal material, get electric butt piece and lead wire portion electricity and be connected.

3. The safety power taking device according to claim 2, characterized in that: the electricity taking abutting piece and the lead part are integrally formed.

4. The safety power taking device according to claim 2, characterized in that: the electricity taking abutting piece is a metal reed.

5. The safety power taking device according to claim 1, characterized in that: the first end of getting the electric pole with the second end of getting the electric terminal all is the hemisphere type that the radius equals, the first end of getting the electric pole is tangent with the second end of getting the electric terminal.

6. The safety power taking device according to claim 1, characterized in that: the first end of the rotating member is arc-shaped.

7. The safety power taking device according to claim 1, characterized in that: the elastic piece is a spring.

8. The safety power taking device according to claim 1, characterized in that: the conductive clamp comprises a first metal plate and a second metal plate which are arranged oppositely, a first metal elastic sheet is arranged on the surface of the first metal plate opposite to the second metal plate, a second metal elastic sheet is arranged on the surface of the second metal plate opposite to the first metal plate, and the first metal sheet and the second metal elastic sheet are both in a convex arc shape.

9. The safety power taking device according to claim 1, characterized in that: the rotating plate is circular.

10. The safety power taking device according to claim 1, characterized in that: the first end of the locking rod is hinged with the rotating plate through a pin shaft.