Protective device for plug

Abstract

The utility model provides a protective device for a plug, which comprises the plug and a socket, a sliding protective sleeve is arranged in the plug, the two sides of the protective sleeve are sleeved on the pins of the plug, a spring is arranged in the plug, and the end part of the spring abuts against the protective sleeve; a boss is fixedly arranged on the outer side of the end portion of the protective sleeve and abuts against the socket. The protective sleeve made of an insulating tubular material is sleeved on the two insertion legs of the plug, so that the metal sheets of the insertion legs are separated from the outside, and the spring is used as a reset device, so that the protective sleeve can be automatically pushed out after the plug is pulled out, and the protective sleeve can be retracted into the plug when the plug is inserted into the socket hole. And when the plug is pulled out, the protective sleeve is pushed out under the action of the spring to wrap the pin metal sheet, so that electric shock caused by exposure of the pins of the plug in the plug-in use process is avoided, and the safety of children at home is ensured.

Description

Technical Field

[0001] The utility model relates to the field of electricity protection, in particular to a protection device for a plug. Background Art

[0002] When I was growing up, my father's most stringent requirement for me was not to touch the sockets at home, fearing that I would accidentally get an electric shock. He also told me that if I got an electric shock, I would never see my parents again. At that time, I was still young and didn't know anything. I was also very curious about sockets. I always thought that the holes on the wall were magical. The lights would light up as soon as they were plugged in, and the fans would start to rotate as soon as they were plugged in. So my parents simply blocked the spare sockets at home with protective covers. I kept my parents' strict requirements in mind, so I also had strict requirements for my younger brother. But my younger brother is very naughty and curious about everything. It is inevitable that he will be out of sight when adults are doing housework. I also found a very serious problem. The plugs of electrical appliances at home are always easy to loosen and pull out a little. At this time, a gap is formed between the plug and the socket panel, and the metal sheets of the two pins of the plug are exposed. My younger brother's fingers are thin, so if he tries to pull out the plug, it will easily touch the pins, which is very dangerous. I thought that if I put a pair of insulating pants on the pins, my hands would not touch the metal sheets. So, under the guidance of my father, I consulted a lot of information and designed a protective device for the plug that can automatically put on pants.

[0003] In 2022, there were 11,200 electric shock accidents in China, killing more than 13,000 people. Tragedy continues to occur. my country's voltage is 220 volts, and if you are not rescued in time within two or three minutes of electric shock, you will die. Therefore, electric shock is as fierce as a tiger, and you must avoid electric shock injuries.

[0004] At present, there are many types of household sockets in various countries around the world, which can be generally divided into two types: one is the recessed socket represented by the German socket, and the other is the flat-type socket represented by the Chinese socket. Since the recessed socket plug is embedded in the socket panel, the problem of electric shock in the gap between the plug and the socket is fully avoided, while the flat-type socket cannot do this. There must be a gap between the plug and the socket, and the metal sheet of the pin is exposed. However, hundreds of millions of households in China use flat-type sockets, and the plug shapes are also different. It is not easy to switch to recessed sockets now. Utility Model Content

[0005] The main purpose of the utility model is to provide a protective device for a plug to solve the problems in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: comprising a plug and a socket, wherein a sliding protective sleeve is provided in the plug, and both sides of the protective sleeve are sleeved on the pins of the plug, and a spring is provided in the plug, and the end of the spring abuts against the protective sleeve;

[0007] A boss is fixedly arranged on the outer side of the end of the protective sleeve, and the boss abuts against the socket.

[0008] Preferably, a guide post is fixed in the plug, the middle part of the protective sleeve slides against the guide post, the spring is sleeved on the guide post, one end of the spring rests in the plug, and the other end rests on the protective sleeve.

[0009] Preferably, a sliding sleeve is provided between the protective sleeve and the guide column, the sliding sleeve is fixed on the protective sleeve, and the sliding sleeve slides against the guide column.

[0010] Preferably, the protective cover is higher than the pins so that the pins are hidden in the protective cover;

[0011] The boss is arranged at the end of the protective sleeve, the end of the protective sleeve is in the plug hole of the socket, and the boss abuts against the outer side of the plug hole.

[0012] Preferably, a mounting seat is fixedly provided between the end of the guide column and the plug, one end of the spring is clamped on the mounting seat, and the other end is clamped on the sliding sleeve.

[0013] The utility model provides a protective device for a plug. The protective sleeve is made of an insulating tubular material and is sleeved on two plug legs of the plug so that the metal sheets of the plug pins are isolated from the outside. A spring is used as a reset device so that the protective sleeve can be automatically pushed out after the plug is pulled out. In this way, the protective sleeve can be retracted into the plug when the plug is inserted into the socket hole, and the protective sleeve can be pushed out again under the action of the spring to wrap the metal sheets of the plug pins when the plug is pulled out, so as to avoid electric shock caused by the exposed plug pins during the use of the plug, thereby ensuring the safety of children at home. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a sectional view of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the plug of the utility model;

[0017] Figure 3 It is a schematic diagram of the plug of the utility model being inserted into a socket;

[0018] Figure 4 This is a schematic diagram of the utility model plug being fully inserted into the socket;

[0019] In the figure: plug 1; pin 101; guide column 102; spring 103; socket 2; contact block 201; protective cover 3; sliding sleeve 301; boss 302. DETAILED DESCRIPTION

[0020] like Figures 1 to 4As shown, a protective device for a plug comprises a plug 1 and a socket 2, wherein a sliding protective cover 3 is provided in the plug 1, and both sides of the protective cover 3 are sleeved on the pins 101 of the plug 1, and a spring 103 is provided in the plug 1, and the end of the spring 103 abuts against the protective cover 3;

[0021] A boss 302 is fixedly arranged on the outer side of the end of the protective sleeve 3, and the boss 302 abuts against the socket 2. With this structure, the protective sleeve 3 can always be wrapped around the outer side of the pin 101 under the action of the spring 103. When the plug 1 is inserted into the socket 2, the boss 302 on the outer side of the protective sleeve 3 abuts against the socket 2. During the insertion process, the spring 103 is compressed, and the pin 101 extends out of the protective sleeve 3 and enters the socket 2. During the removal process, the spring 103 pushes the protective sleeve 3 against the socket 2, and the pin 101 is removed from the socket 2. During use, the pin 101 is completely wrapped in the protective sleeve 3 and cannot touch the pin 101, so there is no risk of accidental electric shock.

[0022] Preferably, a guide post 102 is fixed in the plug 1, the middle of the protective sleeve 3 slides against the guide post 102, the spring 103 is sleeved on the guide post 102, one end of the spring 103 is against the plug 1, and the other end is against the protective sleeve 3. With this structure, the protective sleeve 3 is in the shape of "trousers", the two trouser legs are wrapped on the pin 101 and slide, the middle of the protective sleeve 3 is against the guide post 102, and the sliding is smoother, and the spring 103 is also sleeved on the guide post 102, ensuring that the spring 103 is smoother when compressed and reset.

[0023] Preferably, a sliding sleeve 301 is provided between the protective sleeve 3 and the guide column 102, the sliding sleeve 301 is fixed on the protective sleeve 3, and the sliding sleeve 301 slides against the guide column 102. With this structure, the protective sleeve 3 slides against the guide column 102 through the sliding sleeve 301, and the sliding is smoother.

[0024] Preferably, the protective cover 3 is higher than the pin 101, so that the pin 101 is hidden in the protective cover 3;

[0025] The boss 302 is arranged at the end of the protective sleeve 3, and the end of the protective sleeve 3 is in the jack of the socket 2, and the boss 302 abuts against the outside of the jack. With this structure, the protective sleeve 3 is higher than the pin 101, and can completely wrap the pin 101 during use; the boss 302 is at a certain distance from the end face of the protective sleeve 3, so that the end of the protective sleeve 3 can be inserted into the jack of the socket 2 for positioning during insertion. After being inserted and positioned into the jack, the boss 302 abuts against the outside of the jack, and continuous insertion can compress the spring 103, so that the protective sleeve 3 retracts into the plug 1, and the pin 101 abuts against the contact block 201 of the socket 2, making the use of protection more convenient.

[0026] Preferably, a mounting seat is fixed between the end of the guide column 102 and the plug 1, one end of the spring 103 is clamped on the mounting seat, and the other end is clamped on the sliding sleeve 301. With this structure, the two ends of the spring 103 are respectively fixed on the mounting seat and the sliding sleeve 301, and the installation and use are more reliable.

[0027] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A protective device for a plug, comprising a plug (1) and a socket (2), characterized in that: The plug (1) is provided with a sliding protective sleeve (3), with two sides of the protective sleeve (3) sleeved on the plug pins (101) of the plug (1), and a spring (103) is provided in the plug (1), with the end of the spring (103) resting on the protective sleeve (3); A boss (302) is fixedly provided on the outer side of the end of the protective sleeve (3), and the boss (302) abuts against the socket (2).

2. A protective device for a plug according to claim 1, characterized in that: A guide post (102) is fixedly provided in the plug (1), the middle portion of the protective sleeve (3) slides against the guide post (102), the spring (103) is sleeved on the guide post (102), one end of the spring (103) rests in the plug (1), and the other end rests on the protective sleeve (3).

3. A protective device for a plug according to claim 2, characterized in that: A sliding sleeve (301) is provided between the protective sleeve (3) and the guide column (102); the sliding sleeve (301) is fixed on the protective sleeve (3), and the sliding sleeve (301) slides against the guide column (102).

4. A protective device for a plug according to claim 1, characterized in that: The protective cover (3) is higher than the pin (101), so that the pin (101) is hidden in the protective cover (3); The boss (302) is arranged at the end of the protective sleeve (3), the end of the protective sleeve (3) is in the insertion hole of the socket (2), and the boss (302) abuts against the outside of the insertion hole.

5. A protective device for a plug according to claim 2, characterized in that: A mounting seat is fixedly provided between the end of the guide column (102) and the plug (1); one end of the spring (103) is clamped on the mounting seat, and the other end is clamped on the sliding sleeve (301).

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