CN111952785A

CN111952785A - Anti-drop plug and socket based on thermal expansion principle

Info

Publication number: CN111952785A
Application number: CN202010812506.8A
Authority: CN
Inventors: 付相勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2020-11-17

Abstract

The invention belongs to the technical field of electrical equipment, and particularly relates to an anti-drop plug and a socket based on a thermal expansion principle, which comprise a plug, a socket, and an electric plug and an external connection wire which are arranged in the plug, wherein a cavity is arranged in the plug, the bottom of the plug is fixedly connected with a clamping block, the upper surface of the socket is provided with a clamping groove matched with the clamping block, a transparent shell is arranged in the cavity, the transparent shell is filled with mixed gas of nitrogen dioxide and dinitrogen tetroxide, the inner side wall of the transparent shell is fixedly connected with a heating pipe, a heating wire is arranged in the heating pipe, the electric plug comprises a live wire electric plug and a zero wire electric plug, the live wire electric plug is electrically connected with the external connection wire through the heating wire, and a sliding cavity is arranged in the. The invention can fix and lock the position of the plug and the socket when in work, and effectively avoids the problem of plug falling caused by artificial error touch, collision or external wire traction and the like.

Description

Anti-drop plug and socket based on thermal expansion principle

Technical Field

The invention belongs to the technical field of electrical equipment, and particularly relates to an anti-drop plug and an anti-drop socket based on a thermal expansion principle.

Background

The plug and the socket are common electrical equipment accessories, good convenience and safety performance are provided for daily use of electrical equipment, however, after the traditional plug is used for a long time, the traditional plug is often not tightly matched with the socket due to the deformation of the plug sheet, so that the problem of poor contact is caused in the use process, the plug and the socket which are not tightly matched are easy to cause plug falling due to the reasons of artificial error contact, collision or external wire stumbling, and the like, so that troubles are brought to users, and certain risks exist.

To solve the above problems, we propose a separation-proof type plug and socket based on the principle of thermal expansion.

Disclosure of Invention

The invention aims to provide an anti-falling plug and an anti-falling socket which are not easy to fall off and are based on the thermal expansion principle, aiming at the problem that the plug is easy to fall off.

In order to achieve the purpose, the invention adopts the following technical scheme: an anti-drop plug and a socket based on a thermal expansion principle comprise a plug, a socket, and a plug-in sheet and an external connection wire which are arranged in the plug, wherein a cavity is arranged in the plug, the bottom of the plug is fixedly connected with a clamping block, and the upper surface of the socket is provided with a clamping groove matched with the clamping block;

a transparent shell is arranged in the cavity, a mixed gas of nitrogen dioxide and dinitrogen tetroxide is filled in the transparent shell, a heating pipe is fixedly connected to the inner side wall of the transparent shell, and an electric heating wire is arranged in the heating pipe;

the power plug comprises a live wire power plug and a zero wire power plug, and the live wire power plug is electrically connected with an external connecting wire through a heating wire;

a sliding cavity is arranged in the clamping block and is communicated with the transparent shell through a communicating pipe, two T-shaped sliding blocks are connected in the sliding cavity in a sealing and sliding mode, the two T-shaped sliding blocks are made of magnetic materials, opposite poles of the two T-shaped sliding blocks are attracted, and the ends, far away from each other, of the two T-shaped sliding blocks penetrate through the side wall of the sliding cavity respectively and extend out of the clamping block;

and the side wall of the clamping groove is provided with a limiting groove which is matched with the T-shaped sliding block.

The invention has the advantages that:

when the novel socket is used, the plug is inserted into the upper surface of the socket, when the electric appliance is not powered on, no current flows in the live wire inserted into the battery, the two T-shaped sliding blocks are close to each other under the action of magnetic attraction and are completely positioned in the sliding cavities, and the plug can be freely pulled out and inserted.

When the electric appliance works, current passes through the live wire plug-in sheet, the electric heating wire is electrified to generate heat, the heat is conducted into the transparent shell by the heating pipe, the temperature of mixed gas of nitrogen dioxide and dinitrogen tetroxide in the transparent shell is raised, the balance is moved towards the direction generated by the nitrogen dioxide, the volume of the mixed gas expands, two T-shaped sliding blocks are pushed to be away from each other, one end of each T-shaped sliding block slides to the limiting groove, the plug and the socket are fixed and locked, the problems of manual error contact, collision or external wire traction and the like are effectively avoided, and the plug is led to fall off.

After the electrical appliance is powered off, the T-shaped sliding block resets after the temperature in the heating pipe is gradually cooled, and the plug can be pulled out from the surface of the socket.

Preferably, the top surface that cavity was run through to the upper end of transparent casing sets up, and when using electrical apparatus in the use, nitrogen dioxide and nitrogen tetroxide gas mixture's balance moved to the direction that nitrogen dioxide generated, because of nitrogen dioxide is reddish brown, nitrogen tetroxide is colorless, then the transparent casing internal color deepens, plays good warning effect, prevents artificially to pull out the plug by mistake.

Preferably, many the bottom fixedly connected with of plug swell the strip that absorbs water, many it is arranged to extending all around by the center department of plug bottom surface to be annular array, many the swell the strip that absorbs water divide into the interval of a plurality of mutual isolations with the contact surface of plug and socket, live wire plug-in strip and zero line plug-in strip divide be in different intervals, when preventing that the socket surface from having water stain, water directly switches on the circuit between live wire plug-in strip and the zero line plug-in strip, take place the short circuit danger, and when the socket surface has water stain, swell after absorbing water stain with the swell that the swell strip that absorbs water, jack up the plug slightly, leave less clearance between messenger's plug and the socket, through the heating of heating wire, can rapid evaporation to dryness water stain, further reduce the possibility that danger takes place.

Drawings

Fig. 1 is a schematic structural view of an embodiment 1 of a separation-proof plug and socket based on the thermal expansion principle according to the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a schematic bottom structure view of the anti-drop plug and socket according to the thermal expansion principle of the invention, in embodiment 2.

In the figure, a plug 1, a live wire plug 11, a zero wire plug 12, a socket 2, an external connecting wire 3, a cavity 4, a clamping block 5, a sliding cavity 51, a sliding block 52T, a clamping groove 6, a limiting groove 61, a transparent shell 7, a heating pipe 71, a heating wire 72 and a water absorption expansion strip 8 are arranged.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1-2, an anti-drop plug and socket based on thermal expansion principle comprises a plug 1, a socket 2, and a plug blade and an external connection wire 3 installed in the plug 1, wherein a cavity 4 is arranged in the plug 1, a clamping block 5 is fixedly connected to the bottom of the plug 1, and a clamping groove 6 matched with the clamping block 5 is formed in the upper surface of the socket 2;

a transparent shell 7 is arranged in the cavity 4, a mixed gas of nitrogen dioxide and dinitrogen tetroxide is filled in the transparent shell 7, a heating pipe 71 is fixedly connected to the inner side wall of the transparent shell 7, an electric heating wire 72 is arranged in the heating pipe 71, and the upper end of the transparent shell 7 penetrates through the top surface of the cavity 4;

the power strip comprises a live wire power strip 11 and a zero wire power strip 12, and the live wire power strip 11 is electrically connected with the external connection wire 3 through a heating wire 72;

a sliding cavity 51 is arranged in the clamping block 5, the sliding cavity 51 is communicated with the transparent shell 7 through a communicating pipe, two T-shaped sliding blocks 52 are connected in the sliding cavity 51 in a sealing and sliding mode, the two T-shaped sliding blocks 52 are made of magnetic materials, opposite poles of the two T-shaped sliding blocks 52 are attracted, and the ends, far away from each other, of the two T-shaped sliding blocks 52 penetrate through the side wall of the sliding cavity 51 and extend to the outside of the clamping block 5;

the side wall of the clamping groove 6 is provided with a limiting groove 61 which is matched with the T-shaped sliding block 52.

The working principle of the embodiment is as follows: when the plug is used, the plug 1 is inserted into the upper surface of the socket 2, when the electric appliance is not electrified, no current flows in the live wire plug sheet 11, at the moment, the two T-shaped sliding blocks 52 are close to each other under the action of magnetic attraction and are completely positioned in the sliding cavity 51, and the plug 1 can be freely plugged.

When the electric appliance works, current passes through the live wire plug piece 11, the electric heating wire 72 is electrified to generate heat, the heat is conducted into the transparent shell 7 through the heating pipe 71, the temperature of the mixed gas of nitrogen dioxide and dinitrogen tetroxide in the transparent shell 7 is raised, the mixed gas moves towards the direction of nitrogen dioxide generation in a balanced manner, the volume of the mixed gas expands, two T-shaped sliding blocks 52 are pushed to be away from each other, one ends of the T-shaped sliding blocks 52 slide into the limiting grooves 61, the plug 1 and the socket 2 are fixed and locked in position, and the problem that the plug 1 falls off due to the fact that the plug 1 is touched by mistake, collided or an external wire is involved is effectively avoided.

After the electrical appliance is powered off, the temperature in the heating pipe 71 is gradually cooled, the T-shaped sliding block 52 is reset, and the plug 1 can be pulled out from the surface of the socket 2.

Example 2

As shown in fig. 3, the present embodiment is different from embodiment 1 in that: the bottom fixedly connected with many water swelling strips 8 of absorbing of plug 1, many water swelling strips 8 of absorbing are arranged to extending all around by the center department of plug 1 bottom surface and are the annular array.

In this embodiment, many water swelling strips 8 that absorb water divide into the interval of a plurality of mutual isolations with plug 1 and socket 2's contact surface, the live wire is inserted electric piece 11 and is located different intervals with zero line plug electric piece 12 branch, when preventing that socket 2 surface from having water stain, water directly switches on the live wire and inserts the circuit between electric piece 11 and zero line plug electric piece 12, take place the short circuit danger, and when socket 2 surface has water stain, water swelling strip 8 can absorb the water stain back inflation, jack-up plug 1 slightly, leave less clearance between messenger plug 1 and the socket 2, heating through heating wire 72, but rapid evaporation water stain, further reduce the dangerous possibility of taking place.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An anti-drop plug and a socket based on a thermal expansion principle comprise a plug (1), a socket (2), and a plug sheet and an external connection wire (3) which are arranged in the plug (1), and are characterized in that a cavity (4) is arranged in the plug (1), the bottom of the plug (1) is fixedly connected with a clamping block (5), and the upper surface of the socket (2) is provided with a clamping groove (6) matched with the clamping block (5);

a transparent shell (7) is arranged in the cavity (4), the transparent shell (7) is filled with a nitrogen dioxide and dinitrogen tetroxide mixed gas, a heating pipe (71) is fixedly connected to the inner side wall of the transparent shell (7), and an electric heating wire (72) is arranged in the heating pipe (71);

the power plug comprises a live wire power plug (11) and a zero wire power plug (12), and the live wire power plug (11) is electrically connected with the external connection wire (3) through an electric heating wire (72);

a sliding cavity (51) is arranged in the clamping block (5), the sliding cavity (51) is communicated with the transparent shell (7) through a communicating pipe, two T-shaped sliding blocks (52) are connected in the sliding cavity (51) in a sealing and sliding mode, the two T-shaped sliding blocks (52) are made of magnetic materials, heteropolarity attraction is formed between the two T-shaped sliding blocks (52), and one ends, far away from each other, of the two T-shaped sliding blocks (52) penetrate through the side wall of the sliding cavity (51) respectively and extend to the outside of the clamping block (5) to be arranged;

and a limiting groove (61) which is matched with the T-shaped sliding block (52) is arranged on the side wall of the clamping groove (6).

2. The thermal expansion principle-based separation-proof type plug and socket according to claim 1, wherein the upper end of the transparent casing (7) is disposed through the top surface of the cavity (4).

3. The anti-drop plug and socket based on the thermal expansion principle of claim 1, wherein the bottom of the plug (1) is fixedly connected with a plurality of water-absorbing expansion strips (8), and the water-absorbing expansion strips (8) are arranged in an annular array by extending from the center of the bottom surface of the plug (1) to the periphery.