CN218887710U

CN218887710U - Anti-reverse-plugging safety plug and socket

Info

Publication number: CN218887710U
Application number: CN202222839912.0U
Authority: CN
Inventors: 卢林
Original assignee: Lu Zuxiong
Current assignee: Lu Zuxiong
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-04-18
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a safety plug and socket for preventing reverse plugging, which comprises a plug and a socket, wherein the plug comprises a plug pin and a plug pin base, the plug pin comprises a first plug pin and a second plug pin, and the length of the first plug pin is less than that of the second plug pin; the socket comprises a first jack and a second jack, wherein a first contact copper sheet is arranged in the first jack, a second contact copper sheet is arranged in the second jack, the first contact copper sheet is matched with the first plug pin, and the second contact copper sheet is matched with the second plug pin; the utility model discloses a structure that first bolt left side zero line is 2-3 millimeters less than the second bolt right side live wire, and the socket adopts the second jack to reduce the cooperation structure of 2-3 millimeters than first jack, realizes just inserting the safe electricity principle that the effect accords with the construction, need connect the zero line earlier during the construction, connect the live wire again for constructor's personal safety obtains the guarantee.

Description

Anti-reverse-plugging safety plug and socket

Technical Field

The utility model relates to a safety plug and socket technical field specifically indicates a prevent safe plug and socket-outlet of reverse plug.

Background

The plug is a connector of electrical equipment, has a rod shape and a copper plate shape, and needs to be selected according to actual needs. The socket can be used for connecting one or more circuits, so that daily use is satisfied.

The safety performance standard of the plug and socket in China requires that two-pole and three-pole plugs are adopted to match with a five-hole socket. Two-pole two-hole, three-pole three-hole plug and socket, their differences are as follows:

1. the rated power of the plug is different, the two-pole plug is mostly used for low-current electrical appliances, and the rated current of the general plug is 10A; the three-pole plug is divided into 10A and 16A according to different power of the electric appliance;

2. the two-pole plug has no ground wire, and the three-pole plug has a ground wire;

3. the two-pole plug is parallel, can be inserted in a forward direction or in a reverse direction, and the three-pole plug is arranged in an inverted splayed shape and cannot be inserted in a reverse direction;

the same point and wiring specifications for both are:

1. the jacks all comply with the wiring specification of left fire, zero fire and right fire;

2. the live wires are all purple, and the zero wires are all blue.

The problems in the prior art are that: the two-pole parallel plug has the risk of electric leakage, and the electric leakage risk also exists although the electric appliance power of the two-pole plug is low, because no ground wire exists; the parallel plug of two poles of earth can just insert also can insert conversely, and the AC plug of 3C authentication does not mark which utmost point is N and L at present, and the user inserts or inserts conversely at will, leads to leading into live wire and zero line access circuit in the circuit and changes, leads to switch, protective tube to lose the safety control to the live wire, takes place the electric leakage easily, and serious meeting damages the circuit.

Therefore, a safety plug and socket with reverse plugging prevention is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is that the two-pole parallel plug has the risk of electric leakage, and the electric leakage risk exists even if the electric power of the two-pole plug is low, because no ground wire exists; the parallel plug of two poles of earth can just insert also can insert conversely, and the AC plug of 3C authentication does not mark which utmost point is N and L at present, and the user inserts or inserts conversely at will, leads to leading into live wire and zero line access circuit in the circuit and changes, leads to switch, protective tube to lose the safety control to the live wire, takes place the electric leakage easily, and serious meeting damages the circuit.

In order to solve the technical problem, the utility model provides a technical scheme does: a safety plug and socket capable of preventing reverse plugging comprises a plug and a socket, wherein the plug comprises a plug pin and a plug pin base, the plug pin comprises a first plug pin and a second plug pin, and the length of the first plug pin is smaller than that of the second plug pin;

the socket comprises a first jack and a second jack, wherein a first contact copper sheet is arranged in the first jack, a second contact copper sheet is arranged in the second jack, the first contact copper sheet is matched with the first plug pin, and the second contact copper sheet is matched with the second plug pin.

Furthermore, the first contact copper sheet is connected with a zero line.

Further, the second contact copper sheet is connected with a live wire.

Further, the first pin is 2-3 mm shorter than the second pin.

Furthermore, the first bolt and the second bolt are both provided with insulating sheaths.

Further, the height of the second contact copper sheet is 2-3 mm lower than that of the first contact copper sheet.

Compared with the prior art, the utility model the advantage lie in: the utility model adopts a structure that the left zero line of the first bolt is 2-3 mm shorter than the right live line of the second bolt, and the socket adopts a matching structure that the second jack is 2-3 mm lower than the first jack, so that the forward insertion effect conforms to the safe power connection principle of construction, and during construction, the zero line is firstly connected and then the live line is connected, so that the personal safety of constructors is guaranteed;

under the condition of keeping the two poles parallel, the problem of reverse insertion conduction of the two poles can be prevented; the left side is short, the right side is long, the two poles are just contacted in place and electrified, the first bolt is firstly contacted with a zero line in the first jack, and the second bolt is continuously inserted downwards to be contacted with a live line in the second jack; when the plug is pulled out, the live wire is firstly disconnected, and the zero line is disconnected;

once reversely inserted, the first bolt is long and can be inserted into the first jack to contact the zero line contact copper sheet, but the first bolt is short, the second jack cannot be inserted into the live line contact copper sheet, and the first bolt is not electrified, so that electric shock can be prevented;

the utility model discloses it is easy and simple to handle, reasonable in design is worth wideling popularize.

Drawings

Fig. 1 is a schematic structural diagram of a plug in a reverse-plugging prevention safety plug and socket of the present invention.

Fig. 2 is a schematic structural diagram of a socket in the anti-reverse-plugging safety plug and socket of the present invention.

Fig. 3 is a cross-sectional view of a receptacle in a safety plug and receptacle for preventing reverse insertion according to the present invention.

As shown in the figure: 1. the plug comprises a plug body, 2, a socket body, 3, a plug pin, 4, a plug pin base, 5, a first plug pin, 6, a second plug pin, 7, a first jack, 8, a second jack, 9, a first contact copper sheet, 10, a second contact copper sheet, 11 and an insulating sheath.

Detailed Description

The following describes the anti-reverse-plugging safety plug and socket in further detail with reference to the accompanying drawings.

The present invention will be described in detail with reference to the accompanying drawings 1-3.

A safety plug and socket for preventing reverse plugging comprises a plug 1 and a socket 2, wherein the plug 1 comprises a plug pin 3 and a plug pin base 4, the plug pin 3 comprises a first plug pin 5 and a second plug pin 6, and the length of the first plug pin 5 is smaller than that of the second plug pin 6;

the socket 2 comprises a first jack 7 and a second jack 8, a first contact copper sheet 9 is arranged in the first jack 7, a second contact copper sheet 10 is arranged in the second jack 8, the first contact copper sheet 9 is matched with the first plug pin 5, and the second contact copper sheet 10 is matched with the second plug pin 6.

The first contact copper sheet 5 is connected with a zero line.

The second contact copper sheet 6 is connected with a live wire.

The first pin 5 is shorter than the second pin 6 by 2-3 mm.

And the first pin 5 and the second pin 6 are both provided with an insulating sheath 11.

The height of the second contact copper sheet 10 is 2-3 mm lower than that of the first contact copper sheet 9.

The utility model relates to a prevent safe plug and socket's of back-plugging concrete implementation process as follows: firstly, the length of the first bolt 5 is shorter than that of the second bolt 6, so that the height of the first contact copper sheet 9 is higher than that of the second contact copper sheet 10, the first contact copper sheet 9 is connected with a zero line, the second contact copper sheet 10 is connected with a live line, the first contact copper sheet 9 is arranged in the first jack 7, and the second contact copper sheet 10 is arranged in the second jack 8, so that the normal use can be realized.

The utility model adopts a structure that the left zero line of the first bolt 5 is 2-3 mm shorter than the right live line of the second bolt 6, the socket 2 adopts a matching structure that the second jack 8 is 2-3 mm lower than the first jack 7, the forward insertion effect is realized to accord with the safe power connection principle of construction, the zero line is firstly connected and then the live line is connected during construction, so that the personal safety of constructors is ensured;

under the condition of keeping the two poles parallel, the problem of reverse insertion conduction of the two poles can be prevented; the left side is short, the right side is long, the two poles are just contacted in place and electrified, the first bolt 5 is firstly contacted with a zero line in the first jack 7, and the second bolt 6 is continuously inserted downwards to be contacted with a live line in the second jack 8; when the plug 1 is pulled out, the live wire is firstly disconnected, and the zero line is then disconnected;

once reversely inserted, the first plug pin is long and can be inserted into the first jack 7 to contact with the zero line contact copper sheet, but the first plug pin 6 is short, the second jack 8 cannot be inserted into the live line contact copper sheet, and the electricity is not supplied, so that the electric shock can be prevented;

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a prevent safe plug and socket of plug, includes plug (1) and socket (2), its characterized in that: the plug (1) comprises a plug pin (3) and a plug pin base (4), the plug pin (3) comprises a first plug pin (5) and a second plug pin (6), and the length of the first plug pin (5) is smaller than that of the second plug pin (6);

the socket (2) comprises a first jack (7) and a second jack (8), wherein a first contact copper sheet (9) is arranged in the first jack (7), a second contact copper sheet (10) is arranged in the second jack (8), the first contact copper sheet (9) is matched with the first plug pin (5), and the second contact copper sheet (10) is matched with the second plug pin (6).

2. A reverse-insertion preventing safety plug and socket set forth in claim 1, wherein: the first contact copper sheet (9) is connected with a zero line.

3. A reverse-insertion preventing safety plug and socket set forth in claim 2, wherein: the second contact copper sheet (10) is connected with a live wire.

4. A reverse-plugging prevention safety plug and socket as claimed in claim 1, wherein: the first bolt (5) is shorter than the second bolt (6) by 2-3 mm.

5. A reverse-plugging prevention safety plug and socket as claimed in claim 4, wherein: and the first plug pin (5) and the second plug pin (6) are both provided with insulating sheaths (11).

6. A reverse-plugging prevention safety plug and socket as claimed in claim 3, wherein: the height of the second contact copper sheet (10) is 2-3 mm lower than that of the first contact copper sheet (9).