CN203367630U

CN203367630U - Lock-type power plug socket

Info

Publication number: CN203367630U
Application number: CN 201320302834
Authority: CN
Inventors: 丘公还
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-29
Filing date: 2013-05-29
Publication date: 2013-12-25
Anticipated expiration: 2023-05-29

Abstract

The utility model discloses a lock-type power plug socket which comprises a plug and a socket. The plug is provided with at least two electrical terminals. The socket is provided with at least two plug holes which are respectively corresponding to the electrical terminals. The interior of each of the plug holes is provided with an electrical contact. The plug is also provided with a positioning pin. Two support arms extend along the length direction of the positioning pin and are located at the lower end part. Each of the support arms is provided with a snapping mouth. The socket is provided with a positioning hole which is corresponding to the positioning pin. The interior of the socket is provided with a push rod which can slide elastically along the length direction in a preset travel. The push rod is provided with a fin. One end of the push rod is located outside the socket. When the plug is plugged into the socket, the positioning pin passes through the positioning hole, the two support arms are respectively disposed above the push rod in a spanning manner, and the fin is snapped inside the snapping mouths. The plug socket avoids a phenomenon of heating or fire striking, and also avoids the separation, caused by touching or pulling, of the plug and the socket, and greatly improves safety of electricity application.

Description

A kind of bayonet type plug and socket of power source

Technical field

The utility model relates to a kind of plug and socket of power source, relates in particular to a kind of bayonet type plug and socket of power source.

Background technology

Plug and socket is a kind of electric connector be used in conjunction with each other, be applicable to daily life and industrial production, the mode that plugs together of existing plugs and sockets, no matter be to be threaded, bayonet socket connects, or direct insertion connection, to rely on the effect of the elastic reaction of electrical contact in socket and frictional force and the electric terminal of plug is clamped mostly, the plug and socket of this connected mode, because electrical contact and electric terminal are to rely on the effect of elasticity and frictional force to realize being electrically connected to, so phenomenon overheated or sparking easily occurs, simultaneously, the user in use, easily because touching or pulling, plug and socket is separated, cause device powers down, shutdown, especially for some precision instruments, suddenly the power down phenomenon will have a strong impact on the useful life of equipment.

Therefore, existing plugs and sockets exists and electrically contacts defective tightness and the segregative defect of plug and socket.

The utility model content

The technical problems to be solved in the utility model is, a kind of bayonet type plug and socket of power source is provided, make plug can snap close on socket, thereby avoided the two the phenomenon of heating or sparking to occur, simultaneously, can also avoid causing the two separation because touching or pulling, improve electrical safety.

For solving the problems of the technologies described above, the utility model adopts following technical scheme.

A kind of bayonet type plug and socket of power source, it includes a plug and a socket, described plug is provided with at least two electric terminals, offer accordingly at least two jacks with described electric terminal on described socket, be provided with electrical contact in described jack, also be provided with an alignment pin on described plug, extend two support arms along the length direction of alignment pin and the bottom that is positioned at alignment pin, offer the screens mouth on described support arm, offer accordingly location hole with described alignment pin on described socket, in this socket, be provided with one can be along its length and in default stroke the push rod of Elastic Sliding, described push rod is provided with a fin, one end of this push rod is positioned at outside socket, when described plug is inserted on socket, alignment pin is through location hole, two support arms are located on push rod, within described fin is sticked in the screens mouth.

Preferably, the end that described fin is sticked in the screens mouth is tapered end, and described screens mouth is wedge-shaped opening.

Preferably, the end that described push rod is positioned within socket is arranged with a spring, and an end and the fin of described spring offset, and its other end and socket offset.

Preferably, described electrical contact is the torsionspring contact, and the bottom of this electrical contact is bent with a collet, and the bottom of described collet and electric terminal offsets, and the upper end of described electrical contact and the side of electric terminal offset.

In the disclosed bayonet type plug and socket of power source of the utility model, snap action by fin and screens mouth, within alignment pin can firmly be positioned socket, make lock catch of plug on socket, when the user wants to pull out plug, need press the end of push rod, make push rod slide along its length, until fin separates with the screens mouth and the snap action of the two disappears, afterwards plug is extracted from socket.The plugs and sockets of this bayonet type has avoided the two the phenomenon of heating or sparking to occur, simultaneously, has also avoided causing the two separation because touching or pulling, and especially for some precision instruments, has greatly improved electrical safety.

The accompanying drawing explanation

Fig. 1 is the forward cutaway view of plug while being inserted in socket.

Fig. 2 is the forward cutaway view of plug while separating with socket.

The side sectional view that Fig. 3 is fin plug and socket while being sticked in the screens mouth.

The side sectional view that Fig. 4 is fin plug and socket while separating with the screens mouth.

The side direction structural representation that Fig. 5 is plug.

The vertical view that Fig. 6 is push rod.

The end view that Fig. 7 is push rod.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in more detail.

The utility model proposes a kind of bayonet type plug and socket of power source, shown in Fig. 1 and Fig. 2, it includes a plug 1 and a socket 2, described plug 1 is provided with at least two electric terminals 10, offer accordingly at least two jacks 20 with described electric terminal 10 on described socket 2, be provided with electrical contact 22 in described jack 20, when plug 1 is inserted on socket 2, electric terminal 10 offsets with electrical contact 22.

For by plug 1 snap close on socket 2, in conjunction with shown in Fig. 1 to Fig. 4, also be provided with an alignment pin 11 on described plug 1, extend two support arms 110 along the length direction of alignment pin 11 and the bottom that is positioned at alignment pin 11, offer screens mouth 111 on described support arm 110, offer accordingly location hole 23 with described alignment pin 11 on described socket 2, in this socket 2, be provided with one can be along its length and in default stroke the push rod 21 of Elastic Sliding, described push rod 21 is provided with a fin 210, one end of this push rod 21 is positioned at outside socket 2, when described plug 1 is inserted on socket 2, alignment pin 11 is through location hole 23, two support arms 110 are located on push rod 21, within described fin 210 is sticked in screens mouth 111 under elastic reaction, and under the snap action of fin 210 and screens mouth 111, within alignment pin 11 firmly is positioned to socket 2, thereby realized plug 1 snap close on socket 2, when the user wants to pull out plug 1, need press the end of push rod 21, to make push rod 21 slide along its length, and fin 210 separates with screens mouth 111, make the snap action of the two disappear, afterwards plug 1 is extracted from socket 2.

Shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, within more easily fin 210 being sticked in to screens mouth 111, the end that described fin 210 is sticked in screens mouth 111 is tapered end, and described screens mouth 111 is wedge-shaped opening.

In order to realize push rod 21 Elastic Sliding in default stroke, shown in Fig. 2, Fig. 3, Fig. 6 and Fig. 7, the end that described push rod 21 is positioned within socket 2 is arranged with a spring 211, and an end and the fin 210 of described spring 211 offset, and its other end and socket 2 offset.

Shown in Fig. 1 and Fig. 2, described electrical contact 22 is the torsionspring contact, the bottom of this electrical contact 22 is bent with a collet 220, described collet 220 offsets with the bottom of electric terminal 10, the side of the upper end of described electrical contact 22 and electric terminal 10 offsets, wherein, under the elastic reaction of electrical contact 22, the upper end of electrical contact 22 can closely be electrically connected on electric terminal 10, when the user wants to pull out plug 1, press an end of the push rod 21 be positioned at outside socket 2, make fin 210 separate with screens mouth 111 and the snap action of the two disappears, collet 220 pops up electric terminal 10, until electric terminal 10 ejects jack 20, and plug 1 separates automatically with socket 2, wherein, under the effect of torsionspring contact, electrical connection between plug 1 and socket 2 is tightr, simultaneously, the two can also rely on elasticity automatically to separate, use procedure is simple and convenient.

In the disclosed bayonet type plug and socket of power source of the utility model, snap action by fin 210 and screens mouth 111, within alignment pin 11 can firmly be positioned socket 2, make plug 1 snap close on socket 2, when the user wants to pull out plug 1, need press the end of push rod 21, make push rod 21 slide along its length, until fin 210 separates with screens mouth 111 and the snap action of the two disappears, afterwards plug 1 is extracted from socket 2.The plugs and sockets of this bayonet type has avoided the two the phenomenon of heating or sparking to occur, simultaneously, has also avoided causing the two separation because touching or pulling, and especially for some precision instruments, has greatly improved electrical safety.In addition, because electrical contact 22 is the torsionspring contact, so under its elastic reaction, the electrical connection between plug 1 and socket 2 is tightr, and can rely on elasticity automatically to separate, make the utility model have more reliability and automation performance.

The above is the utility model preferred embodiment, is not limited to the utility model, all modifications of making in technical scope of the present utility model, is equal to and replaces or improvement etc., all should be included in the scope that the utility model protects.

Claims

1. a bayonet type plug and socket of power source, it includes a plug (1) and a socket (2), described plug (1) is provided with at least two electric terminals (10), described socket (2) is upper offers at least two jacks (20) accordingly with described electric terminal (10), be provided with electrical contact (22) in described jack (20), it is characterized in that, also be provided with an alignment pin (11) on described plug (1), extend two support arms (110) along the length direction of alignment pin (11) and the bottom that is positioned at alignment pin (11), offer screens mouth (111) on described support arm (110), described socket (2) is upper offers location hole (23) accordingly with described alignment pin (11), in this socket (2), be provided with one can be along its length and in default stroke the push rod (21) of Elastic Sliding, described push rod (21) is provided with a fin (210), one end of this push rod (21) is positioned at outside socket (2), when described plug (1) is inserted on socket (2), alignment pin (11) is through location hole (23), two support arms (110) are located on push rod (21), within described fin (210) is sticked in screens mouth (111).

2. bayonet type plug and socket of power source as claimed in claim 1, is characterized in that, the end that described fin (210) is sticked in screens mouth (111) is tapered end, and described screens mouth (111) is wedge-shaped opening.

3. bayonet type plug and socket of power source as claimed in claim 1, it is characterized in that, the end that described push rod (21) is positioned within socket (2) is arranged with a spring (211), and an end of described spring (211) and fin (210) offset, and its other end and socket (2) offset.

4. bayonet type plug and socket of power source as claimed in claim 1, it is characterized in that, described electrical contact (22) is the torsionspring contact, the bottom of this electrical contact (22) is bent with a collet (220), described collet (220) offsets with the bottom of electric terminal (10), and the side of the upper end of described electrical contact (22) and electric terminal (10) offsets.