Anti-drop plug and socket

Abstract

The present invention discloses an anti-dropping plug and socket, belonging to the field of electrical safety. It includes a push switch, a transformer, and an electromagnetic device. The push switches are respectively installed on both sides of the plug, the induction coil is installed on the contact surface between the plug and the socket, and the adsorption sheet is installed on the socket at a position corresponding to the installation position of the electromagnetic coil on the plug. When the plug is powered on, it cannot be easily pulled out by external force; it can only be easily pulled out when there is no current in the socket, or when the buttons on both sides are pressed at the same time, which solves the problems of the existing plug being easily affected by external forces and causing it to drop off during use, and the safety hazards caused by children accidentally touching the powered plug. It has a simple structure, is safe and usable, is easy to promote, and has high practicality.

Description

Technical Field

[0001] The invention provides an anti-dropping plug and a socket, belonging to the field of electrical appliance safety. Background Art

[0002] With the rapid development of science and technology, electronic devices are used more and more frequently. The power connection of electronic devices generally uses plugs and sockets. In real life, the plugs on household appliances need to be plugged in and out of the power socket. The connection between the plugs and sockets in life is mostly direct connection. During use, they are easily affected by external forces and fall off. In groups with children at home, children's accidental unplugging can easily cause extremely serious safety accidents. Most of the existing technologies use mechanical structures to fasten the plugs, and some use electromagnetic methods to fasten them. The existing structures that use electromagnetic methods for fastening are mostly complex and costly, which is not conducive to large-scale promotion. Therefore, in order to solve the existing problems, a simple structure is designed to provide magnetic force to fasten the plug and the socket, which achieves strong adsorption force, simple structure, safety and reliability, and easy promotion. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an anti-dropping plug and socket, which solves the problems raised in the above-mentioned background technology through a press switch, an electromagnetic lock device, and an adsorption sheet. The present invention has a simple structure, strong adsorption force, safety and effectiveness, low cost, and is easy to promote.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: an anti-dropping plug, including a push switch, a transformer, and an electromagnetic device, wherein: the push switch is composed of a button, a contact piece, a push piece, and a reset spring. There are two push switches, which are respectively located on the sides of the plug, the lower end of the button is fixed to the push piece, the outer ends of the contact pieces are respectively connected to the power supply wires, the inner ends of the contact pieces are overlapped on the push pieces and separated by the button, one end of the reset spring is connected to the inside of the plug and fixed, and the other end of the reset spring is fixed to the lower end of the push piece; when there is no external force on the button, the contact piece is always in contact with the push piece, and when the button is subjected to external force, the contact piece moves to the upper end of the button; the transformer is an AC transformer, the transformer input is the plug current, and the output is connected to the electromagnetic device; the electromagnetic device is at least one electromagnetic induction coil installed at the plug port.

[0005] Furthermore, the button is made of insulating material and the contact piece is a conductor.

[0006] Furthermore, there are three electromagnetic induction coils.

[0007] Furthermore, the upper end of the pressing sheet is a conductive layer and the lower end is a non-conductive layer.

[0008] Furthermore, the socket panel is provided with an adsorption sheet that cooperates with the electromagnetic induction coil.

[0009] Furthermore, the adsorption sheet is an iron sheet or other magnetizable material.

[0010] The beneficial effects of the present invention are as follows: the magnetic force generated by the electromagnetic induction coil after the voltage transformation is used to fasten the plug to the socket. The plug can be easily unplugged only when the switches on both sides are pressed at the same time or there is no current in the socket. On the one hand, it plays a role of assisting when inserting into the socket; on the other hand, it ensures the safety of the plug, preventing the plug from being easily removed by external force and electric shock accidents caused by live plugging and unplugging. The combined design of the contact piece, the pressing piece and the reset spring makes it easy to use the electromagnet to press and cut off the power. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Shown is a structural diagram of the plug of the present invention;

[0012] Figure 2 Shown is a structural diagram of the socket of the present invention;

[0013] Figure 3 Shown is a partial enlarged view of the pressed button;

[0014] Figure 4 Shown is a schematic diagram of the adsorption structure;

[0015] In the figure: 1. Shell; 2. Button; 3. Electromagnetic induction coil; 4. Contact piece; 5. Adsorption piece; 6. Reset spring; 7. Pressing piece; 8. Socket shell; 9. Transformer. DETAILED DESCRIPTION

[0016] Below, the present invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0017] An anti-drop plug includes a push switch, a voltage transformer, and an electromagnetic device. The push switch is composed of a button 2, a contact piece 4, a push piece 7, and a reset spring 6. There are two push switches, which are respectively located on the sides of the plug. The outer ends of the contact pieces 4 are respectively connected to the power supply wires, and the inner ends of the contact pieces 4 are overlapped on the push piece 7 and separated by the button 2. The button is made of insulating material. In this embodiment, the button is made of plastic material, and the contact piece is a conductor. In this embodiment, the contact piece is a copper piece. The upper end of the push piece is a conductive copper piece, and the lower end is a non-conductive plastic piece. One end of the reset spring is connected to the inside of the plug and fixed, and the other end is fixed to the plastic layer at the lower end of the push piece 7. When there is no external force on the button 2, the contact piece 4 is always in contact with the push piece 7. When the button is subjected to external force, the contact piece moves to the upper end of the button. The voltage transformer is an AC transformer 9, and the transformer 9 inputs the plug current, and the output is connected to the electromagnetic device. The electromagnetic device is three electromagnetic induction coils 3 installed at the plug port, and the electromagnetic induction coils are fixed on both sides of the two metal pieces of the plug, such as Figure 1 shown.

[0018] The socket panel is provided with an adsorption sheet 5 that cooperates with the electromagnetic induction coil 3. The adsorption sheet is an iron sheet or other magnetizable materials such as iron, nickel, cobalt, etc., and in this embodiment, it is an iron sheet. Three iron sheets are located on both sides of the socket, and the positions correspond to the electromagnetic induction coils of the plug.

[0019] In this embodiment, the transformer 9 connected in parallel with the live wire and the neutral wire reduces the household voltage 220V to 12V (the number of turns drawn in the figure is not the actual number of turns), and can also be reduced to other suitable voltages as needed. At the moment of power-on, the current passes through Figure 1 The electromagnetic induction coil 3 shown generates an induced magnetic field, which fits with the adsorption sheet on the socket. Figure 4 As shown; the plug can be stably combined with the socket. When both push buttons are subjected to external force or there is no current in the socket, the electromagnetic induction coil does not generate a magnetic field and the plug can be easily unplugged.

Claims

1. An anti-drop plug, comprising a push switch, a voltage transformer, and an electromagnetic device, characterized in that: The push switch is composed of a button (2), a contact sheet (4), a push sheet (7), and a return spring (6). There are two push switches, which are respectively located on the side of the plug. The lower end of the button is fixed to the push sheet. The outer ends of the contact sheets (4) are respectively connected to the power supply wires. The inner ends of the contact sheets (4) overlap the push sheet (7) and are separated by the button (2). One end of the return spring is connected to the inside of the plug and fixed, and the other end of the return spring is fixed to the lower end of the push sheet (7). When there is no external force on the button (2), the contact sheet (4) is always in contact with the push sheet (7). When the button is subjected to external force, the contact sheet moves to the upper end of the button. The transformer is an AC transformer (9). The input of the transformer (9) is the plug current, and the output is connected to the electromagnetic device. The electromagnetic device is at least one electromagnetic induction coil (3) installed at the plug port. An adsorption sheet (5) cooperating with the electromagnetic induction coil (3) is provided on the socket panel. The button is made of insulating material, and the contact sheet (4) is a conductor.

2. The anti-drop plug according to claim 1, characterized in that: There are three electromagnetic induction coils (3).

3. The anti-drop plug according to claim 1, characterized in that: The pressing sheet (7) has a conductive layer at the upper end and a non-conductive layer at the lower end.

4. The socket of the anti-drop plug according to claim 1, characterized in that: The adsorption sheet (5) is an iron sheet or other magnetizable material.

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