CN108963535B

CN108963535B - Socket and safety door thereof

Info

Publication number: CN108963535B
Application number: CN201810718916.9A
Authority: CN
Inventors: 陈泽; 陈贵
Original assignee: Huizhou Confidence Electrical Appliance Manufacturing Co Ltd
Current assignee: Huizhou Confidence Electrical Appliance Manufacturing Co Ltd
Priority date: 2018-07-04
Filing date: 2018-07-04
Publication date: 2020-03-31
Anticipated expiration: 2038-07-04
Also published as: CN108963535A

Abstract

The invention relates to a socket and a safety door thereof, wherein the safety door comprises a safety door cover, at least two through holes arranged at the bottom of the safety door cover, a first sliding block and a second sliding block; the at least two vias include a first via and a second via; the first slider comprises a first shielding part capable of slidably shielding or opening the first via hole and a second shielding part connected with the first shielding part and capable of slidably shielding or opening the second via hole; the second slider comprises a third shielding portion and a fourth shielding portion, the third shielding portion can slidably shield or open the first via hole and is arranged opposite to the first shielding portion, the fourth shielding portion can slidably shield or open the second via hole and is arranged opposite to the second shielding portion, and the safety door further comprises a first opening state, a first protection state and a first closing state. The safety door can be used for preventing one pin of a plug from being inserted into a socket, so that the pin is conducted with a connecting sheet in the socket, and electric shock hazard is caused; which can be used to improve the safety of the socket.

Description

Socket and safety door thereof

Technical Field

The invention relates to an electric appliance, in particular to a socket and a safety door thereof.

Background

In the existing socket, a through hole under a face cover of the existing socket is generally communicated with a conductive metal connecting sheet arranged below the through hole, when one pin of a plug is inserted into a certain through hole, the pin naturally touches a conductive metal connecting piece below the through hole, so that potential safety hazards exist in the socket, and electric shock accidents are easily caused.

Disclosure of Invention

The invention aims to provide a socket and a safety door thereof, which can reduce the potential safety hazard of the socket and avoid electric shock accidents.

The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a safety door, which comprises a safety door cover, at least two through holes arranged at the bottom of the safety door cover, and a first sliding block and a second sliding block which are arranged in the safety door cover and can slide in the safety door cover along a first direction;

the at least two through holes comprise a first through hole and a second through hole which are matched for inserting a pin of the first plug;

the first slider comprises a first shielding part capable of slidably shielding or opening the first via hole and a second shielding part connected with the first shielding part and capable of slidably shielding or opening the second via hole;

the second slider comprises a third shielding part which can slidably shield or open the first via hole and is arranged opposite to the first shielding part, and a fourth shielding part which can slidably shield or open the second via hole and is arranged opposite to the second shielding part;

the safety door further comprises a first opening state for opening the first through hole and the second through hole to allow the pins of the first plug to penetrate through when the first sliding block and the second sliding block synchronously slide along the first direction;

when the first slider or the second slider slides along the first direction, the third shielding part shields the first via hole, the fourth shielding part shields the second via hole, or the first shielding part shields the first via hole, and the second shielding part shields a first protection state of the second via hole; and

when the first slider and the second slider do not slide, the first shielding portion shields the first via hole, the second shielding portion shields the second via hole, the third shielding portion shields the first via hole, and the fourth shielding portion shields the first closed state of the second via hole.

Preferably, a first elastic piece is arranged between the first sliding block and the safety door cover;

the first shielding part is provided with a first connecting shaft connected with the first elastic piece;

a yielding hole is formed between the first shielding part and the second shielding part;

the bottom surface of the safety door cover is provided with a limiting baffle which penetrates out of the abdicating hole to limit the position of the first sliding block;

the first elastic piece is arranged in the first direction, one end of the first elastic piece is connected with the first shielding part, and the other end of the first elastic piece is abutted to the limiting baffle.

Preferably, a second elastic piece is arranged between the second sliding block and the safety door cover; the second sliding block further comprises a first baffle plate and a second baffle plate which are arranged on two sides of the fourth shielding portion and extend along the direction of the first via hole to be connected with the third shielding portion;

the fourth shielding part is provided with a second connecting shaft connected with the second elastic piece; the second elastic piece is arranged in the first direction, one end of the second elastic piece is connected with the fourth shielding part, and the other end of the second elastic piece is abutted against the inner side wall of the safety door cover;

a guide channel for the first sliding block to penetrate through is formed at the interval between the first baffle and the second baffle; the guide passage extends from the third shielding portion to the bottom of the fourth shielding portion.

Preferably, the second slider is arranged at the periphery of the first slider;

the first sliding block extends into the guide channel; the first shielding part is arranged on the third shielding part; the second shielding part is arranged below the fourth shielding part to slide out of the guide channel;

the limiting baffle penetrates out of the guide channel and is located between the fourth shielding part and the first shielding part.

Preferably, the bottom surface of the first shielding part is stepped, and a clamping position which is recessed towards the top of the first shielding part and allows the third shielding part to slide is arranged on the bottom surface of the first shielding part;

the width of the third shielding part is smaller than that of the clamping position so as to slide in the clamping position.

Preferably, the at least two vias further include a third via hole for insertion of a pin of a second plug in cooperation with the second via hole;

a third sliding block which can be blocked in a sliding mode or can open the third through hole in a sliding mode along a second direction is arranged on the third through hole; a limiting component for limiting sliding of the third sliding block and the second sliding block is arranged between the third sliding block and the second sliding block;

the safety door further comprises a second opening state that the first sliding block and the second sliding block synchronously slide along the first direction, and the third through hole and the second through hole are opened when the third sliding block synchronously slides along the second direction;

when the second slider slides along the first direction and the first slider does not slide, or the first slider slides and the second slider and the third slider do not slide, the second shielding part shields the second via hole, the third slider shields the third via hole, or the third slider shields the third via hole, and the fourth shielding part shields a second protection state of the second via hole;

when the first slider, the second slider and the third slider do not slide, the second shielding part and the fourth shielding part shield the second via hole, and the third slider shields the second closed state of the third via hole.

Preferably, the first direction is arranged perpendicular to the second direction;

the limiting assembly comprises a limiting hole formed in the third sliding block and a limiting convex rib arranged on the second sliding block and capable of being inserted into the limiting hole.

Preferably, a third elastic piece is arranged between the third sliding block and the safety door cover; the third elastic piece is positioned in the second direction, one end of the third elastic piece is connected with the third sliding block, and the other end of the third elastic piece is abutted against the inner side wall of the safety door cover;

the third sliding block comprises a sliding block main body and a third connecting hole which is arranged in the sliding block main body and connected with the third elastic piece; the limiting hole is formed in the sliding block main body, and the limiting convex rib is arranged on the first baffle.

The invention also constructs a socket which comprises a box body and the safety door; the safety door is arranged in the box body; the box body comprises a bottom box and a surface cover covering the bottom box;

the face cover is provided with at least two jacks which are arranged corresponding to the at least two through holes; the at least two jacks comprise a first jack and a second jack which are matched for inserting the pins of the first plug; the first sliding block is arranged below the first jack, the second sliding block is arranged below the second jack, and a connecting piece connected with pins of a plug is arranged in the bottom box and below the via hole.

Preferably, the at least two jacks further comprise a third jack and a fourth jack which are matched with the second jack and used for inserting the pins of a second plug; the second plug is a three-pin plug.

The socket and the safety door thereof have the following beneficial effects: the safety door can open the first through hole and the second through hole when the first sliding block and the second sliding block synchronously slide along the first direction to form a first open state, and pins of the first plug can penetrate through the safety door; when the first slider or the second slider slides along the first direction, the third shielding part shields the first via hole, the fourth shielding part shields the second via hole, or the first shielding part shields the first via hole, and the second shielding part shields the second via hole to form a first protection state, so that the electric shock hazard caused by inserting any pin of the first plug into the first via hole or the second via hole is avoided; when the first slider and the second slider do not slide, the first shielding part shields the first via hole, the second shielding part shields the second via hole, the third shielding part shields the first via hole, and the fourth shielding part shields the second via hole, so that a first closed state is formed. The safety door can be used for preventing one pin of a plug from being inserted into the socket, so that the pin is conducted with a connecting sheet in the socket, and electric shock danger is caused; which can be used to improve the safety of the socket.

The socket provided by the invention has the advantages that the safety door provided by the invention can reduce the occurrence of electric shock risks and has high safety performance.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

figure 1 is a schematic view of the safety door of the present invention;

figure 2 is a schematic view of the safety door of figure 1 at another angle;

figure 3 is an exploded view of the safety door of the present invention;

figure 4 is a schematic view of the security door of the present invention in a first open position for insertion of a first receptacle;

figure 5 is a schematic view of a first protective condition of the security gate of the present invention;

figure 6 is another schematic view of the first protective condition of the security gate of the present invention;

figure 7 is a schematic view of the security door of the present invention in a second open position for insertion of a second receptacle;

figure 8 is a schematic view of a first protective condition of the security gate of the present invention;

FIG. 9 is a schematic view of the construction of the socket of the present invention;

FIG. 10 is a cross-sectional view of the socket of the present invention;

fig. 11 is a cross-sectional view of another angle of the socket of the present invention.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Figures 1 to 8 show a preferred embodiment of the security gate of the present invention.

The safety door can be arranged in the socket and is used for avoiding electric shock risks when any pin of the plug is inserted into the jack on the socket, the electric shock risks of the socket can be reduced, and the safety performance of the socket is improved.

As shown in fig. 1 to 8, the safety door 10 includes a safety door cover 11, at least two through holes 111, a first slider 12 and a second slider 13; the safety door cover 11 can be used to be disposed in the socket, which plays a role of safety protection, and the at least two through holes 111 are disposed at the bottom of the safety door cover 11, which can be inserted with plugs. The first slider 12 and the second slider 13 are disposed in the safety door casing 11, and are slidable in a first direction, and when both are slid in the first direction, the through hole 111 is opened, facilitating the insertion of a plug.

The safety door cover 11 may be made of plastic, but it may be made of ceramic or other insulating material. The socket can be placed in the socket and is positioned below the socket jack, and the safety protection effect is achieved. The bottom surface of the safety door cover 11 is further provided with a limiting baffle 112, the limiting baffle 112 is perpendicular to the bottom surface of the safety door cover 11 and protrudes towards the outside of the safety door cover 11, and the limiting baffle 112 can be used for limiting the positions of the first sliding block 12 and the second sliding block 13.

As shown in fig. 2, 4 to 6, the at least two through holes 111 include a first through hole 1111 and a second through hole 1112 that are matched to insert a pin into which the first plug 30 is inserted. The first plug 30 includes two pins that can be inserted into the first via 1111 and the second via 1112, respectively. The first through hole 1111 and the second through hole 1112 are separately and parallelly disposed and are adapted to the pins of the first plug 30, and the two pins of the first plug 30 can be inserted into the first through hole 1111 and the second through hole 1112.

As shown in fig. 2, 7 to 8, in the present embodiment, the at least two vias 111 may further include a third via 1113 for the pin of the second plug 40 to be inserted into in cooperation with the second via 1112; in this embodiment, the second plug 40 includes three pins, one of which is cylindrical and is used for grounding, and the other two pins are perpendicular to each other, one is longitudinally distributed and the other is transversely distributed; the third via hole 1113 is perpendicular to the first via hole 1111 and is connected to the first via hole 1111 to form a T-shape, and the arrangement of the third via hole 1113 is matched with the arrangement of the pins of the second plug 40. It is understood that the third via 1113 may be omitted and the at least two vias 111 may include two, three or more vias.

As shown in fig. 1 to 3, the first slider 12 is disposed on the first via 1111 and the second via 1112, and covers the first via 1111 and the second via 1112; which includes a first shielding portion 121 and a second shielding portion 122. One side of the first shielding portion 121 opposite to the second shielding portion 122 is provided with an arc surface, and the arc surface can be used for contacting with a pin of a plug. The first shielding portion 121 can slidably shield or open the first via 1111; the second shielding portion 122 is connected to the first shielding portion 121, and can slidably shield or open the second via hole 1112. A yielding hole 123 is arranged between the first shielding part 121 and the second shielding part 122; the limiting baffle 112 can be disposed through the receding hole 123 to limit the position of the first slider 12.

Further, a first elastic element 14 is arranged between the first sliding block 12 and the safety door cover 11; specifically, the first elastic member 14 may be a return spring. The first elastic element 14 is disposed in the first direction, the first shielding portion 121 can be disposed with a first connecting shaft 1211 connected to the first elastic element 14, one end of the first elastic element 14 is connected to the first connecting shaft 1211, and the other end of the first elastic element is abutted to the inner sidewall of the safety door 11. Specifically, the first connection shaft 1211 is disposed to extend toward an inner side wall of the safety door cover 11, the first elastic member 14 is sleeved on the first connection shaft 1211, when the first slider 12 is pushed in the first direction, the first elastic member 14 can generate an elastic force to facilitate the sliding of the first slider 12, when the first slider 12 is not pressed in the first direction, the first elastic member 14 can restore the first slider 12, the number of the first elastic members 14 is not limited, in this embodiment, preferably, the number of the first elastic members 14 is two, correspondingly, the number of the first connection shaft 1211 is two, and a limit groove 113 corresponding to the first elastic member 14 can be disposed on the inner side wall of the safety door cover 11; the number of the limiting grooves 113 corresponds to the number of the first elastic elements 14, and the first elastic elements 14 may be disposed in the limiting grooves 113 and abut against the safety door cover 11, but it is understood that in other embodiments, the limiting grooves 113 may be omitted.

The second slider 13 is disposed on the first via 1111 and the second via 1112, and covers the first via 1111 and the second via 1112; the second slider includes a third shielding portion 131 and a fourth shielding portion 132. The third shielding portion 131 is connected to the fourth shielding portion 132, and the third shielding portion 131 can slidably shield or open the first via 1111; the fourth shielding portion 132 can slidably shield or open the second via 1112.

The third shielding portion 131 is disposed above the first via 1111 and opposite to the first shielding portion 121, and specifically, disposed below the first shielding portion 121, and can be used to slidably shield or open the first via 1111; the bottom surface of the first shielding portion 121 is stepped, and is provided with a position-locking portion 1212 for the third shielding portion 131 to slide, the position-locking portion 1212 is recessed toward the top of the first shielding portion 121, and the width of the third shielding portion 131 is smaller than the width of the position-locking portion 1212, so that the third shielding portion 131 can slide in the position-locking portion 1212.

The fourth shielding portion 132 is disposed above the first via hole 1111 and opposite to the second shielding portion 122, and specifically, can be disposed above the second shielding portion 122 and can be used for slidably shielding or opening the second via hole 1112. The fourth shielding portion 132 is provided with an arc surface at a side opposite to the third shielding portion 131, and the arc surface can be used for contacting with the pin of the plug; the fourth shielding portion 132 may further include a second connecting shaft 1321 connectable to the second elastic member 137. The second connecting shaft 1321 is disposed in the first direction.

In this embodiment, the second slider 13 further includes a first blocking plate 133 and a second blocking plate 134 disposed at both sides of the fourth shielding portion 132; the first baffle 133 and the second baffle 134 extend along the first through hole 1111 direction and are connected to the third shielding portion 131, and the first baffle 133 and the second baffle 134 are disposed on the periphery of the first slider 12, so that the second slider 13 is disposed on the periphery of the first slider 12.

The heights of the first baffle 133 and the second baffle 134 are greater than the height of the third shielding portion 131, and a guide channel 135 is formed between the first baffle 133 and the fourth baffle 134, so that the first slider 12 is inserted into the guide channel 135, and the first slider 12 can slide along the guide channel 135. The guiding channel 135 extends from the third shielding portion 131 to the bottom of the fourth shielding portion 132, the first slider 12 extends from the guiding channel 135, the first shielding portion 121 is located on the third shielding portion 131, the second shielding portion 122 is located below the fourth shielding portion 132, and the second shielding portion 122 can slide out from the guiding channel 135. The first slider 12 and the second slider 13 are arranged crosswise, thereby playing a role of mutual restriction. The position-limiting baffle 112 extends out of the guide channel 135 and is located between the fourth shielding portion 132 and the first shielding portion 121, which can limit the position of the second slider 13.

A second elastic element 137 is arranged between the second sliding block 13 and the safety door cover 11; the second elastic element 137 is connected to the second connecting shaft 1321, and specifically, is sleeved on the second connecting shaft 1321. The second elastic element 137 is disposed in the first direction, one end of the second elastic element is connected to the fourth shielding portion 132, and the other end of the second elastic element abuts against the inner sidewall of the safety door 11. When the fourth shielding portion 132 is pushed in the first direction, the second elastic member 137 generates an elastic force to facilitate the second slider 13 to slide in the first direction, and when the fourth shielding portion 132 is not pressed in the first direction, the second elastic member 137 can restore the second slider 13, and accordingly, the inner sidewall of the safety door cover 11 can be provided with the limiting groove 113 corresponding to the second elastic member 137; the number of the limiting grooves 113 corresponds to the number of the second elastic members 137, and the second elastic members 137 may be disposed in the limiting grooves 113 and abut against the safety door cover 11, but it is understood that in other embodiments, the limiting grooves 113 may be omitted.

The safety door 10 further includes a first open state, a first protection state, and a first closed state. When in the first open state, the first via 1111 and the second via 1112 are both open, into which the pin of the first plug 30 can be inserted; when in the first protection state, any pin of the first plug 30 cannot be inserted into the first through hole 1111 or the second through hole 1112, thereby playing a role of protection and electric shock prevention.

As shown in fig. 1 and 4, when the two pins of the first plug 30 are inserted into the safety door 10, the pins thereof push the first slider 12 and the second slider 13 to slide synchronously along the first direction, and the first through hole 1111 and the second through hole 1112 are both opened, thereby forming a first open state, at this time, the two pins of the first plug 30 can be inserted into the first through hole 1111 and the second through hole 1112, respectively.

As shown in fig. 1 and 5, when any pin of the first plug 30 is inserted between the fourth shielding portion 132 and the limiting baffle 112, the second slider 13 slides along the first direction, at this time, the first slider 12 does not slide, the first shielding portion 121 shields the first via hole 1111, and the second shielding portion 122 shields the second via hole 1112, so as to form the first protection state, and the pin is supported by the second shielding portion 122 and is not inserted into the second via hole 1112, so as to play a role in protection.

As shown in fig. 1 and 6, or when any pin of the first plug 30 is inserted into the front end of the first shielding portion 121, the first shielding portion 121 is pressed by the pin, so that the first slider 12 slides along the first direction, at this time, the second slider 13 does not slide, the third shielding portion 131 shields the first via 1111, and the second shielding portion 132 shields the second via 1112, so as to form the first protection state, and the pin of the first plug 30 cannot be inserted into the first via 1111 because the third shielding portion 131 shields the first via 1111, thereby playing a role in protection.

When no plug is inserted into the safety door 10 and the first slider 12 and the second slider 13 do not slide, the first shielding portion 121 shields the first via hole 1111 and the second shielding portion 122 shields the second via hole 1112; the third shielding portion 131 shields the first via hole 1111, and the fourth shielding portion 132 shields the second via hole 1112, thereby forming a first closed state.

As further shown in fig. 1 to 3, in the present embodiment, the safety door 10 further includes a third slider 15; the third slider 15 is disposed on the third via 1113 and slidably covers or slides in the second direction to open the third via 113. In this embodiment, the second direction is perpendicular to the first direction.

The third slider 15 includes a slider main body 151 and a third connection hole 152 disposed on the slider main body 151 and capable of being connected to an elastic member, the slider main body 151 is wedge-shaped, the wedge-shaped portion of the slider main body is disposed toward the third via hole 113, and the slider main body 151 is disposed adjacent to the first slider 12. The third connecting hole 152 is disposed in the second direction and at an end away from the wedge portion.

A limiting component which limits sliding mutually is arranged between the third sliding block 15 and the second sliding block 13; the limiting component comprises a limiting hole 1511 arranged in the third sliding block 15 and a limiting convex rib 136 arranged on the second sliding block 13 and capable of being inserted into the limiting hole 1511; specifically, the limiting hole 1511 is disposed on the slider body 151, and the limiting rib 136 is disposed on the first barrier 133. When the limiting rib 136 extends from the limiting hole 1511, the third sliding block 15 can slide along the second direction.

A third elastic element 16 is arranged between the third sliding block 15 and the safety door cover 11; the third elastic element 16 is disposed in the second direction, one end of the third elastic element passes through the third connecting hole 152 to be connected to the slider body 151, and the other end of the third elastic element abuts against the inner sidewall of the safety door 11. When the transverse pin of the second plug 40 is inserted between the fourth shielding portion 132 and the limiting baffle 112 and the second sliding block 13 slides along the first direction, the limiting rib 136 slides along the first direction, and when the longitudinal pin of the second plug 40 is inserted from the inclined surface of the wedge portion, the third sliding block 15 is pressed to slide along the second direction, the first sliding block 12 slides along the first direction, so that the second through hole 1112 and the third through hole 1113 are opened, and the second plug 40 is inserted. When the plug 40 is pulled out, the third slider 15 can be reset under the action of the third elastic element 16, two separated and side-by-side projections are arranged on the inner side wall of the safety door cover 11, and a limit position clip 114 corresponding to the third elastic element 16 is formed at the interval between the two projections; the number of the position-limiting detents 114 corresponds to the number of the third elastic elements 16, and the third elastic elements 16 can be engaged in the position-limiting detents 114 and abut against the safety door cover 11, but it is understood that in other embodiments, the position-limiting detents 114 can be omitted.

The emergency gate 10 further includes a second open state, a second protective state, and a second closed state. The second open state is a state when the pins of the second plug 40 are inserted into the safety door 10 and the second via 1112 and the third via 1113 are all opened, and the second protection state is a state when any one pin of the plug 40 is inserted and the second via 1112 and the third via 1113 are all blocked; the second closed state is when the unplugged, second via 1112 and third via 1113 are both blocked.

As shown in fig. 1 to 3 and 7, when the pins of the second plug 40 are inserted into the safety door 10, the transverse pin is inserted between the fourth shielding portion 132 and the limit stop 112, the longitudinal pin is inserted from the front end of the third slider 15, the first slider 12 and the second slider 13 slide synchronously in the first direction, the second slider 15 slides synchronously in the second direction, and the third via 1113 and the second via 1112 are opened to form the second opened state, at this time, the pin of the second plug 40 can be inserted into the second via 1112 and the third via 1113.

As shown in fig. 1 to 3 and 7, when any pin of the second plug 40 is inserted into the wedge portion of the third slider 15 and contacts with the wedge portion, the second slider 13 cannot be pushed, the limiting rib 136 is located in the limiting hole 1511, so as to limit the third slider 15 to slide, so that the third slider 15 blocks the third via hole 1113, and the fourth blocking portion 132 blocks the second via hole 1112, so as to form the second protection state, so that the second plug 40 cannot be inserted, and the electric shock prevention effect is achieved.

When any pin of the second plug 40 is inserted between the fourth shielding portion 132 and the limiting baffle 112, the second slider 13 is pushed to slide along the first direction, the first slider 12 does not slide, the second shielding portion 122 shields the second via hole 1113, and the third slider 15 does not slide, so as to form a second protection state, at this time, the second shielding portion 122 abuts against the pin, so that the pin cannot be inserted into the second via hole 1113, and the electric shock prevention effect is further achieved.

When the headless pin is inserted into the safety door 10, the first slider 12, the second slider 13 and the third slider 15 do not slide, the second shielding portion 122 and the fourth shielding portion 132 shield the second through hole 1112, and the third slider 15 shields the third through hole 1113, thereby forming the second closed state.

Fig. 1 to 11 show a preferred embodiment of the socket of the present invention. The socket can reduce the electric shock risk and has the advantage of high safety performance.

As shown in fig. 1 to 11, the receptacle includes a case 20, and a security door 10 of the present invention; the safety door 10 is disposed in the case 20 to serve as a safety guard. The box body 20 includes a bottom box 22 and a surface cover 21 covering the bottom box 22. The bottom case 22 can form a receiving space for receiving the safety door 10, and the face cover 21 can cover the bottom case 22 to protect it.

In the present embodiment, two safety doors 10 are provided in the case 20, and the two safety doors 10 are separately provided in the case 20. It is to be understood that the number of the safety doors 10 is not limited, and may be one, two or more. The safety door 11 may be located at an upper portion of the case 20, and is coupled to the cover 21, and the first elastic member 14 is disposed along a width direction of the case 20. In this embodiment. The width direction of the case 20 forms the first direction, and the length direction of the case 20 may form the second direction. The safety door 10 has been previously discussed and reference is made to the above description, which is not repeated herein.

The face cover 21 is provided with at least two insertion holes 211 corresponding to the at least two through holes 111. The at least two insertion holes 211 into which plugs can be inserted. The number of the insertion holes 211 is matched with the number of the through holes 111. In this embodiment, the at least two insertion holes 211 include a first insertion hole 2111 and a second insertion hole 2112 which are fitted to each other for insertion of the pins of the first plug 30; the dimensions and the layout of the first and

second sockets

2111 and 2112 are adapted to the dimensions and the layout of the pins of the first plug 30. The first slider 12 is disposed below the first insertion hole 2111, the second slider 13 is disposed below the second insertion hole 2112, and the bottom case 22 and below the through hole 111 are all provided with a connecting piece 23 connected with the pin of the plug, in this embodiment, the connecting piece 23 includes a 15A stator and a 20A stator; the 15A still is disposed under the first via 1111 and the second via 1112, and the 20A still may be disposed under the third via 1113.

The pin of the first plug 30 is inserted from the first insertion hole 2111, one side of the pin contacts with the arc surface of the first slider 12, the other side of the pin contacts with the third slider 15, the first slider 12 is pushed to slide, so as to pass through the first through hole 1111, and the pin is inserted from the second insertion hole 21112, one side of the pin contacts with the arc surface of the second slider 13, the other side of the pin contacts with the limit stop 112 of the safety door cover 11, which can push the second slider 13, so as to pass through the second through hole 1112, so that the pin of the first plug 30 realizes a force balance position, is inserted downwards and connected with the connecting piece 23, and is conducted. If only one pin is inserted into one of the jacks, the first sliding block 12 does not slide because the second sliding block 13 slides, or the first sliding block 12 does not slide and the second sliding block 13 does not slide, the pin of the first plug 30 is pressed by the first sliding block 12 or the second sliding block 13 and cannot be connected with the connecting piece 23, so that the safety protection effect is achieved.

In this embodiment, the at least two insertion holes 211 further include a third insertion hole 2113 and a fourth insertion hole 2114 which are matched with the second insertion hole 2112 for inserting the pins of the second plug 40; wherein the second plug 40 is a three-pin plug. The third sliding block 15 can be arranged below the third inserting hole 2113, when only one pin of the second plug 40 is inserted, because the second sliding block 13 does not slide, the limiting convex rib 136 buckles the third sliding block 15, so that the pin inserted from the third inserting hole 2113 is supported by the third sliding block 15 and can not be inserted, thereby playing a role of safety protection; or when only one pin of the second plug 40 is inserted, the second slider 13 slides, but the first slider 12 and the third slider 13 do not slide, so that the pin inserted from the second insertion hole 2112 is held by the first slider 12 and cannot be inserted, thereby playing a role of safety protection. When the second plug 40 is inserted, one side of the transverse pin is in contact with the arc surface of the second sliding block 13, and the other side of the transverse pin is in contact with the limit baffle 112 to push the second sliding block 13 to move, so that the buckling position of the second sliding block 13 is separated from the buckling groove of the third sliding block 15; when the bottom of the pin contacts the inclined surface of the third slide block 15 after the longitudinal pin is inserted, the third slide block 15 is pushed to retreat, meanwhile, the second plug 40 is contacted with the arc surface of the first slide block 12 to push the first slide block 12 to move, and the second plug 40 is inserted and is respectively contacted with the 15A static piece and the 20A static piece to conduct electricity.

It is to be understood that the foregoing examples, while indicating the preferred embodiments of the invention, are given by way of illustration and description, and are not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. A safety door is characterized by comprising a safety door cover (11), at least two through holes (111) arranged at the bottom of the safety door cover (11), and a first sliding block (12) and a second sliding block (13) which are arranged in the safety door cover (11) and can slide in the safety door cover (11) along a first direction;

the at least two vias (111) include a first via (1111) and a second via (1112) that cooperate to receive a pin of a first plug (30);

the first slider (12) comprises a first shielding part (121) which can slidably shield or open the first through hole (1111), and a second shielding part (122) which is connected with the first shielding part (121) and can slidably shield or open the second through hole (1112);

the second slider (13) comprises a third shielding part (131) which can slidably shield or open the first via hole (1111) and is arranged opposite to the first shielding part (121), and a fourth shielding part (132) which can slidably shield or open the second via hole (1112) and is arranged opposite to the second shielding part (122);

the second sliding block (13) further comprises a first baffle plate (133) and a second baffle plate (134) which are arranged on two sides of the fourth shielding part (132) and extend along the direction of the first through hole (1111) to be connected with the third shielding part (131);

the interval between the first baffle plate (133) and the second baffle plate (134) forms a guide channel (135) for the first sliding block (12) to penetrate through; the guide passage (135) extends from the third shielding portion (131) to the bottom of the fourth shielding portion (132); the first sliding block (12) extends into the guide channel (135) and is crossed with the second sliding block (13) to restrict each other;

the safety door further comprises a first opening state for opening the first through hole (1111) and the second through hole (1112) to allow the pins of the first plug (30) to penetrate when the first slider (12) and the second slider (13) synchronously slide along the first direction;

when the first slider (12) or the second slider (13) slides in the first direction, the third shielding portion (131) shields the first via hole (1111), the fourth shielding portion (132) shields the second via hole (1112), or the first shielding portion (121) shields the first via hole (1111), and the second shielding portion (122) shields a first protection state of the second via hole (1112); and

when the first slider (12) and the second slider (13) do not slide, the first shielding part (121) shields the first via hole (1111), the second shielding part (122) shields the second via hole (1112), the third shielding part (131) shields the first via hole (1111), and the fourth shielding part (132) shields the first closed state of the second via hole (1112).

2. The safety door according to claim 1, characterized in that a first elastic member (14) is provided between the first slider (12) and the safety door cover (11);

a first connecting shaft (1211) connected with the first elastic piece (14) is arranged on the first shielding part (121);

a yielding hole (123) is formed between the first shielding part (121) and the second shielding part (122);

a limiting baffle (112) is arranged on the bottom surface of the safety door cover (11), and the limiting baffle (112) penetrates out of the abdicating hole (123) to limit the position of the first sliding block (12);

the first elastic member (14) is provided in the first direction, and has one end connected to the first blocking portion (1211) and the other end abutting against the safety door cover (11).

3. The safety door according to claim 2, wherein a second elastic member (137) is provided between the second slider (13) and the safety door cover (11);

the fourth shielding part (132) is provided with a second connecting shaft (1321) connected with the second elastic piece (137); the second elastic piece (137) is arranged in the first direction, one end of the second elastic piece is connected with the second connecting shaft (1321), and the other end of the second elastic piece is abutted to the inner side wall of the safety door cover (11).

4. A safety door according to claim 3, characterized in that said second slider (13) is arranged at the periphery of said first slider (12);

the first shielding portion (121) is provided on the third shielding portion (131); the second shielding portion (122) is disposed below the fourth shielding portion (132) to slide out from the guide passage (135);

the limit baffle (112) penetrates out of the guide channel (135) and is positioned between the fourth shielding part (132) and the first shielding part (121).

5. The safety door according to claim 4, characterized in that the bottom surface of the first shielding part (121) is stepped, and the bottom surface of the first shielding part (121) is provided with a clamping position (1212) which is concave towards the top of the first shielding part (121) and is used for the sliding of the third shielding part (131);

the width of the third shielding part (131) is smaller than that of the position clip (1212) so as to slide in the position clip (1212).

6. A safety door according to claim 3, wherein said at least two through holes (111) further comprise a third through hole (1113) for the insertion of the pin of the second plug (40) in cooperation with said second through hole (1112);

a third sliding block (15) capable of slidably shielding or opening the third via hole (1113) along a second direction is arranged on the third via hole (1113); a limiting component for limiting sliding is arranged between the third sliding block (15) and the second sliding block (13);

the safety door further comprises a second opening state that the first slider (12) and the second slider (13) synchronously slide along the first direction, and the third through hole (1113) and the second through hole (1112) are opened when the third slider (15) synchronously slides along the second direction;

when the second slider (13) slides along the first direction and the first slider (12) does not slide, or the first slider (12) slides and the second slider (13) and the third slider (15) do not slide, the second shielding portion (122) shields the second via hole (1113), the third slider (15) shields the third via hole (1113), or the third slider (13) shields the third via hole (1113), and the fourth shielding portion (132) shields the second via hole (1112);

when the first slider (12), the second slider (13) and the third slider (15) do not slide, the second shielding portion (122) and the fourth shielding portion (132) shield the second via hole (1112), and the third slider (15) shields the third via hole (1113) in a second closed state.

7. The security gate of claim 6, wherein the first direction is disposed perpendicular to the second direction;

the limiting assembly comprises a limiting hole (1511) arranged in the third sliding block (15) and a limiting convex rib (136) arranged on the second sliding block (13) and capable of being inserted into the limiting hole (1511).

8. The safety door according to claim 7, characterized in that a third elastic member (16) is provided between the third slider (15) and the safety door cover (11); the third elastic piece (16) is positioned in the second direction, one end of the third elastic piece is connected with the third sliding block (15), and the other end of the third elastic piece is abutted against the inner side wall of the safety door cover (11);

the third sliding block (15) comprises a sliding block main body (151) and a third connecting hole (152) which is arranged on the sliding block main body (151) and connected with the third elastic piece (16); the limiting hole (1511) is formed in the sliding block main body (151), and the limiting convex rib (136) is arranged on the first baffle (133).

9. A socket, characterized by comprising a case (20), and the security door (10) of any one of claims 1 to 8; the safety door (10) is arranged in the box body (20); the box body (20) comprises a bottom box (22) and a surface cover (21) covering the bottom box (22);

at least two insertion holes (211) which are arranged corresponding to the at least two through holes (111) are arranged on the face cover (21); the at least two sockets (211) include a first socket (2111) and a second socket (2112) which cooperate for insertion of a pin of a first plug (30); the first sliding block (12) is arranged below the first jack (2111), the second sliding block (13) is arranged below the second jack (2112), and a connecting piece (23) connected with a pin of a plug is arranged in the bottom box (22) and below the through hole (111).

10. A socket according to claim 9, wherein the at least two sockets (211) further comprise a third socket (2113) and a fourth socket (2114) for mating with the second socket (2112) for insertion of a pin of a second plug (40); the second plug (40) is a three-pin plug.