Anti-loose plug socket

Abstract

The application discloses a plug and socket which can prevent from loosening and falling off. The plug comprises a shell and a plug pin, and further comprises an opening device arranged on the outer surface of the shell and an upper hook body arranged in the shell and connected to the opening device. The upper hook body can move with the opening device. A lower hook body is arranged on the socket at a position corresponding to the upper hook body when the plug is inserted into the socket. The upper hook body can be hooked and fixed on the lower hook body when the plug is inserted into the socket. The opening device and the upper and lower hook bodies are used to fix the plug and the socket, so that the plug and the socket can be prevented from loosening and falling off. The plug and the socket are convenient to use when being inserted and pulled out, and the structure of the plug and the socket is firm and not easy to be damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to a plug socket, in particular to a plug socket that prevents loosening and falling off. BACKGROUND

[0002] Traditional plug sockets, usually ordinary plug-in plug sockets, have the following problems: the plug is prone to loosening after being plugged into the socket for a long time, causing the electrical appliance to be powered off and unable to be used normally, and even causing electric shock and fire hazards. In particular, plug sockets used in PDU (Power Distribution Unit) devices require plug sockets that prevent loosening and falling off, because the PDU device has a large power and once it falls off, it will cause greater hidden dangers.

[0003] In recent years, some plug sockets that prevent loosening have appeared, such as the plug socket disclosed in Chinese Utility Model Application Publication No. CN205452676U, which fixes the plug on the socket through a cylindrical thread connection. Each time the plug socket is plugged in, the cylindrical part needs to be rotated to fix and unlock it, which is very troublesome, and the structure is not very firm, and the thread and other structures can be damaged after a long period of use. SUMMARY

[0004] The present application aims to solve the technical problem of providing a plug socket that prevents loosening and falling off, which solves the problem of easy loosening during use of the existing plug socket, and is simple and convenient to operate, and the structure is firm and not easily damaged.

[0005] Technical solution: The plug socket that prevents loosening and falling off comprises a plug and a socket. The plug comprises a shell and a plug pin. The plug further comprises an opening device arranged on the outer surface of the shell and an upper hook body arranged inside the shell and connected to the opening device. The upper hook body can move with the opening device. A lower hook body is arranged on the socket at a position corresponding to the upper hook body when the plug is plugged in. When the plug is plugged into the socket, the upper hook body can be hooked and fixed on the lower hook body.

[0006] Further, the lower end of the opening device is fixedly connected to one side of the upper end of the upper hook body, and the other side of the upper end of the upper hook body is fixed to the inside of the plug through an elastic device. The lower surface of the hook head of the upper hook body is provided with an inclined surface. In order to combine the upper and lower surfaces smoothly, the upper surface of the hook head of the lower hook body is also provided with an inclined surface that matches the inclined surface of the hook head of the upper hook body. The elastic device is a compression spring.

[0007] In order to isolate the electric arc and meet the demand of hot plugging, the shell of the plug is provided with a guard plate at the metal sheet exposed by the plug pin, which wraps the metal sheet exposed by the plug pin in the guard plate, and the socket is provided with a socket hole that allows the guard plate to be inserted.

[0008] In order to facilitate flexible installation, the plug shell is provided with a wire outlet hole on each side, and wires can be connected on both sides, and a wire protection sleeve is arranged at the wire outlet hole on one side to protect the wire, and a plug is arranged at the wire outlet hole on the other side to seal.

[0009] In order to facilitate plugging and unplugging of the plug, the opening device is provided with a long strip-shaped protrusion or indentation, and the other side of the plug shell relative to the opening device is also provided with a long strip-shaped protrusion or indentation.

[0010] In order to fix the plug pin more firmly, the plug shell is composed of an upper shell and a lower shell, and the inner side of the upper shell is provided with a reinforcing rib which cooperates with the lower shell to fix the plug pin in the cavity of the lower shell.

[0011] Beneficial effects: Compared with the prior art, the present application has the following outstanding advantages:

[0012] (1) The opening device and the upper and lower hook bodies are used to fix the plug and the socket, prevent loosening and falling off, facilitate easy use during plugging and unplugging, and the structure of the plug and the socket is firm and not easy to be damaged.

[0013] (2) The plug pin is provided with a protective plate, which can isolate electric arc when the plug is plugged into and unplugged from the high-power PDU device, meet the demand of hot plugging, and protect the plug pin during transportation of the plug.

[0014] (3) The plug adopts a symmetrical structure, wires can be connected on both sides of the plug, and the protrusion and the indentation are arranged, facilitating plugging and unplugging of the plug. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a whole structure diagram of the present application;

[0016] Figure 2 is a perspective structure diagram of the plug;

[0017] Figure 3 is an exploded view of the plug and the socket;

[0018] Figure 4 is a schematic view of the plug and the socket in a plugged state;

[0019] Figure 5 is a schematic view of the opening device and the upper hook body in a connected state;

[0020] Figure 6 is a schematic view of wires connected to both sides of the plug;

[0021] Figure 7 is a schematic view of the upper shell of the plug. DETAILED DESCRIPTION

[0022] As Figure 1As shown, the present application is composed of a plug 1 and a socket 2 matched with the plug 1. The structure of the plug 1 in the embodiment is shown in Figure 2 As shown, the shell is composed of an upper shell 11 and a lower shell 10 which can be disassembled and combined, and the pins 12 are installed in the lower shell 10 in a symmetrical structure, and can install the wires in two directions to meet the wiring requirements of both sides of the plug. As shown Figures 3 to 5 As shown, the opening device 3 is arranged on the outer surface of the shell, and the upper hook body 4 is arranged inside the shell. The upper hook body 4 is a cuboid plate structure, the lower end is bent to one side to form a hook structure, and the lower surface of the hook head has an inclined surface. One side of the upper part of the upper hook body 4 is fixedly connected to the lower part of the opening device 3, and the other side of the upper part of the upper hook body 4 is provided with a boss, and a compression spring 5 is arranged on the boss. The other side of the compression spring 5 is fixedly installed on the overall structure inside the plug. The socket 2 is provided with a lower hook body 6 at the corresponding position of the upper hook body 4 when the plug 1 is plugged in. The lower hook body 6 is fixed to the outside of the socket 2, and the upper surface of the hook head of the lower hook body 6 is also provided with an inclined surface which is matched with the inclined surface of the hook head of the upper hook body 4. When the plug 1 is plugged into the socket 2, the upper hook body 4 can be hooked and fixed on the lower hook body 6. When the plug 1 is plugged into the socket 2, the upper hook body 4 moves to the inside of the plug 1 under the reaction force of the lower hook body 6 of the socket, and compresses the compression spring 5; after the plug 1 and the socket 2 are plugged in, the compression spring 5 is released, and under the action of the spring force, the upper hook body 4 hooks the lower hook body 6 of the socket 2, thereby fixing the plug and the socket, and preventing the plug 1 from loosening and falling off after being plugged in; when the plug 1 is pulled out, the opening device 3 is pressed first, and the compression spring 5 is compressed, and the upper hook body 4 is separated from the lower hook body 6 of the socket, so that the plug 1 can be pulled out. In this way, the plug 1 and the socket 2 can be fixed together without extra action when plugging in, and the plug 1 can be pulled out only by pressing the opening device 3, so that the plugging is very convenient and easy to use, and the compact and firm arrangement of the components improves the durability. In order to further facilitate the plugging and unplugging, the opening device 3 is provided with a long strip-shaped protrusion or indentation, and the other side of the shell relative to the opening device 3 is also provided with a long strip-shaped protrusion or indentation.

[0023] The plug 1 is also provided with a guard plate 7 at the plug-in position of the pin 12. The guard plate 7 is also made of insulating material and is fixed to the shell to wrap the exposed metal sheet of the pin 12 in the guard plate 7. The socket 2 is provided with a suitable insertion hole for the guard plate 7. The guard plate 7 can prevent the metal sheet of the pin 12 from being exposed to the outside, and can isolate the electric arc during plugging to meet the requirements of hot plugging and make the plugging process, especially the plugging process of high-power electrical appliances, safer.

[0024] As shown Figure 6As shown, in order to further facilitate the use of plug 1, each side of the plug 1 housing is provided with a wire outlet hole, and wires can be connected to both sides. When wiring, a wire protector 8 is provided at one wire outlet hole for protection, and a plug 9 is provided at the other wire outlet hole to seal it.

[0025] like Figure 7 As shown, a reinforcing rib 14 is provided on the inner side of the upper shell 11 of the plug 1. The reinforcing rib 14 cooperates with the lower shell 10 of the plug 1 to fix the pin 12 in the cavity 13 in the lower shell 10, making the installation of the pin 12 more secure.

Claims

1. A plug and socket anti-loosening device, comprising a plug (1) and a socket (2), the plug (1) comprising a shell and a pin (12), characterized in that: The plug (1) further comprises an opening device (3) arranged on the outer surface of the shell and an upper hook body (4) arranged inside the shell and connected to the opening device (3), the upper hook body (4) being movable with the opening device (3), the socket (2) being provided with a lower hook body (6) corresponding to the position of the upper hook body (4) when the plug (1) is inserted into the socket (2), the upper hook body (4) being able to hook and fix on the lower hook body (6) when the plug (1) is inserted into the socket (2); the lower end of the opening device (3) is fixedly connected to one side of the upper end of the upper hook body (4), and the other side of the upper end of the upper hook body (4) is fixedly connected to the inside of the plug (1) through an elastic device, the lower surface of the hook head of the upper hook body (4) is provided with an inclined surface; the upper surface of the hook head of the lower hook body (6) is also provided with an inclined surface which is in contact with the inclined surface of the hook head of the upper hook body (4); The inclined surfaces of the upper hook body (4) and the lower hook body (6) are configured to guide the movement of the upper hook body (4) by sliding with each other and compress the elastic device during the insertion process, until the upper hook body (4) hooks after passing over the lower hook body (6), and forms a surface contact through the contact of the inclined surfaces after hooking; When the opening device (3) pushes the upper hook body (4) to move, the elastic device is compressed, so that the upper hook body (4) is separated from the lower hook body (6); the shell of the plug (1) is provided with a protective plate (7) at the exposed metal sheet of the pin (12), which wraps the exposed metal sheet of the pin (12) in the protective plate (7), and the socket (2) is provided with a socket hole into which the protective plate (7) can be inserted; The depth of the protective plate (7) inserted into the socket hole is configured to form an isolation in the socket hole before the pin (12) is in electrical contact with the conductive part of the socket (2).

2. The anti-loosening and falling plug socket according to claim 1, characterized in that: The elastic device is a compression spring (5).

3. The anti-loosening and falling plug socket according to claim 1, characterized in that: The shell of the plug (1) is provided with wire outlet holes on both sides, and wires can be connected on both sides, and a wire protection sleeve (8) is arranged at one side of the wire outlet hole to protect the wires during connection, and a plug (9) is arranged at the other side of the wire outlet hole to seal it. The opening device (3) is provided with a long strip-shaped protrusion or indentation, and the other side of the shell of the plug (1) relative to the opening device (3) is also provided with a long strip-shaped protrusion or indentation.

4. The anti-loosening and falling plug socket according to claim 1, characterized in that: The shell of the plug (1) is composed of an upper shell (11) and a lower shell (10), and the inner side of the upper shell (11) is provided with a reinforcing rib (14) which cooperates with the lower shell (10) to fix the pin (12) in the cavity (13) of the lower shell. ​ 5. The anti-loosening and falling plug socket according to claim 1, characterized in that: ​ ​

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