CN2307372Y - Plug - Google Patents

Abstract

The utility model discloses a plug which can work reliably and safely and is convenient to produce. A solid which can be attracted by a magnet and is not a permanent magnet is arranged between the plug pins of a reached plug, causing the solid to be installed on the plug instead of a permanent magnet. A solid which can be attracted and is not a permanent magnet is used for replacing a permanent magnet, so the utility model has the advantages of convenient production and expanding production, and low cost.

Description

Plug

The utility model relates to a kind of plug that switches on or off circuit between power supply and the electrical appliance.

In present prior art, the contact matching of plug and socket is by the sheet metal of socket the clamping action of the pin of plug to be realized, it is the good contact matching that new fashion can keep plug and socket that this structure is worked as product, after using a period of time, owing to the unavoidable undue force of actor, on the one hand because the thermal effect of electric current makes the socket sheet deformation produce loose contact, local electrical resistance increases in addition on the one hand, even strike sparks, burn out, the situation of effort takes place to insert and extract.

For addressing this problem, Chinese patent application (application number 96206351.7) proposes fixed permanent magnet on plug, socket, relies on the attraction between two blocks of permanent magnets, and plug is closely contacted with socket.But, thereby produce inconvenient because permanent magnet is not general material.

The purpose of this utility model provides a kind of plug, and not only result of use is good for it, and convenient for production, cost is not high.

The purpose of this utility model is achieved in that the position installation between the pin on the existing plug can be attracted and not be the solid of permanent magnet by magnet, the permanent magnet that makes this solid replace installing on the plug is attracted by the magnet on the socket, realizes the good result of use that closely contacts between the plug and socket.

Owing to adopt such scheme, can when realizing the good function of use of pin, reduce cost, be convenient to produce; With the solid replacement permanent magnet that can be attracted and not be permanent magnet by magnet, effect is remarkable.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the installation diagram (single-phase two utmost points) of first embodiment of plug.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 1.

Fig. 4 is the installation diagram (single-phase three utmost points) of first embodiment of plug.

Fig. 5 is the installation diagram (single-phase two utmost points) of second embodiment of plug.

Fig. 6 is the C-C cutaway view of Fig. 5.

Fig. 7 is the installation diagram (single-phase three utmost points) of second embodiment of plug.

In Fig. 1, plug is made up of plug body (1), pin (2), solid (3), bolt (4), terminal screw (5), and plug body (1) adopts two opposite structures, and is together firm by bolt (4); Pin (2), solid (3) are installed on the plug body (1), and solid (3) is positioned at the position between the pin (2), and its part is exposed the extraneous space in plug body (1); Wire hole (10) is left in plug body (1) lower end.

In Fig. 2, be shaped on location notch (7) on the pin (2), the position of going up corresponding location notch (7) in plug body (1) is shaped on boss (9), and when plug was assembled, boss (9) embedded in the location notch (7), and pin (2) is fixed on the plug body (1); Pin (2) is equipped with terminal screw (5).

In Fig. 3, be shaped on location notch (6) on the solid (3), the position of going up corresponding location notch (6) in plug body (1) is shaped on boss (8), and when plug was assembled, boss (8) embedded in the location notch (6), and solid (3) is fixed on the plug body (1); It is fastening with plug body (1) that bolt (4) penetrates plug body (1).

In Fig. 4, plug is made up of plug body (1), pin (2), solid (3), bolt (4), terminal screw (5).Solid (3) is installed in the position between the pin (2), and solid (3) one ends embed in the hole (12) of plug body (1), and the other end of solid (3) embeds in the location notch (11) of plug body (1); Bolt (4) penetrates plug body (1) and it is fastening; Terminal screw (5) is installed on the pin (2).

In Fig. 5, plug is made up of plug body (1), pin (2), solid (3).Plug body (1) is built in becoming an integral body that pin (2), solid (3) and electric wire (13) is fixing; The part of solid (3) is exposed the peripheral space in plug body (1).

In Fig. 6, solid (3) cooperates with plug body (1) by location notch on it (6) and is fixed on the plug body (1).

In Fig. 7, pin (2) is triangularly arranged, and the position of solid (3) is positioned between the pin (2).

Claims (4)

1, a kind of plug, it is made up of plug body (1), pin (2) with electric action, and it is characterized in that: the position between pin (2) is equipped with the solid (3) that can be attracted and not be permanent magnet by magnet.

2, plug according to claim 1, plug body (1) is formed by two, involutory back tightens together with bolt (4), it is characterized in that: be shaped on location notch (6) and location notch (7) on solid (3) and the pin (2) respectively, the position that while plug body (1) goes up corresponding location notch (6) and location notch (7) is shaped on boss (8) and boss (9) respectively, and boss (8) and boss (9) embed respectively in location notch (6) and the location notch (7).

3, plug according to claim 1 is characterized in that: plug body (1) is made an integral body, and pin (2), solid (3) and electric wire are fixed.

4, according to claim 1,2 or 3 described plugs, it is characterized in that: solid (3) is inclusive in plug body (1) inside fully or its part is exposed to plug body (1) space outerpace.

Images