CN2212845Y

CN2212845Y - Single-phase dual-purpose safety plug

Info

Publication number: CN2212845Y
Application number: CN 94248852
Authority: CN
Inventors: 王建
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-21
Filing date: 1994-12-21
Publication date: 1995-11-15
Anticipated expiration: 2004-12-21

Abstract

The utility model relates to a single-phase dual-purpose safety plug, comprising an inserter (3) and a safety sleeve seat (1). One end of the inserter (3) extends out three contact pieces of an earth contact piece, a fire contact piece, and a zero contact piece, and the other end of the inserter (3) extends a fire contact piece and a zero contact piece. The inserter (3) is connected with the sleeve seat (1) by a fastening screw. The formed single-phase dual-purpose safety plug can be used as a single-phase safety plug, and can also be used as a common plug. The use is convenient and safe.

Description

Single-phase dual-purpose safety plug

The utility model relates to a kind of single-phase Two-purpose safety socket.

In existing technology, the form of plug is varied, but plug will be sat in the right seat in use.General plug only inserts general socket.The individual event safety plug inserts the individual event safety socket only, and purposes is single.Some is that the lower end is general plug, and the upper end is individual event safety socket or multipurpose socket.Perhaps the lower end is the individual event safety plug, and the upper end is general socket or multipurpose socket.All can when the socket plug unreserved seating, the user be used easily.But this lower end is plug upper end is that the connector assembly of the transition type of the socket point of pegging graft when using is many, uses inconvenient.

The purpose of this utility model is a kind of individual event safety plug of design, can do single-phase safety plug usefulness, can make the plug easy to use that general plug is used again.

Scheme of the present utility model is as follows: design a plug-in unit, an end is three contacts of the safety plug that stretches out: zero line sheet, live wire sheet, insurance ground wire sheet, other end insurance ground wire contact does not stretch out, and only stretches out zero line contact, live wire contact.Three leads that connect three contacts can stretch out in the line hole from the side.Above-mentioned plug-in unit is enclosed within the safe block set and with connector fixes.When using as single-phase safety socket, the end that three contacts are arranged of plug-in unit upwards; When using as general plug, the end that two contacts are arranged of plug-in unit upwards.Be that the utility model makes two kinds of plugs two combine into one, easy to use, no matter be to have only under the situation of single-phase safety socket, still all can use having under the situation of general socket, and easy to use.

Below in conjunction with accompanying drawing the utility model is illustrated:

Fig. 1-Fig. 7 is the utility model embodiment.Shape figure when Fig. 1 makees general plug for the utility model; Fig. 2 is the state diagram of plug-in unit (3) when inserting safe block set (1); Fig. 3, Fig. 4 are the structure chart when doing safety socket.Fig. 3 is a cutaway view, and Fig. 4 is the vertical view of Fig. 3.Fig. 5, Fig. 6 are the structure chart of a parts attic base (10) in the plug-in unit, and Fig. 5 is a vertical view, and Fig. 6 is that A-A is to view.Fig. 7 is the structure chart of contact.

Plug-in unit (3) is enclosed within the safe block set (1).The upper end of plug-in unit is illustrated in figure 2 as when making the individual event safety plug three contacts (4) upwards.The other end of plug-in unit is upwards done general plug usefulness in the time of as shown in Figure 1, at this moment two contacts upwards.

As shown in Figure 3, Figure 4, plug-in unit is made of chassis (10), loam cake (12), attachment screw (18).Plug-in unit is enclosed within on the safe block set (1).Fixing by Screw (15).When need changing-over safety plug during, back out to refill after the screw commutation and get final product to general plug.Insurance ground wire contact (14), zero line contact (22), live wire contact (23) three contacts of plug-in unit when making single-phase safety plug all protrude upward outside the loam cake.The chassis of plug-in unit (10) is as Fig. 5, shown in Figure 6.All there is screw (17) in the centre of three boss (5) on the chassis (10), (9), (16) in order to fixed touch plate.Boss (9), (16) have microscler open-work (8) can make the other end of live wire contact (23), zero line contact (22) form general plug through chassis (10).Boss (7) is located the screw (18) of connection loam cake (12) and chassis (10).

Three contact shapes as shown in Figure 7.* number locate bending once, can meet with safety socket preferably in the time of just can making three contacts stretch out lid (12); The contact that stretches out chassis (10) part can meet with general socket preferably.

Claims

1, single-phase Two-purpose safety socket, it is characterized in that an end of plug-in unit (3) stretches out three contacts of single-phase safety plug: insurance ground wire contact, live wire contact and zero line contact, the other end stretches out two contacts of general plug: zero line contact, live wire contact, plug-in unit (3) sleeve is in a safe block set (1).

2, single-phase Two-purpose safety socket according to claim 1, it is characterized in that above-mentioned plug-in unit is by chassis (10), loam cake (12), overcoat (13) and three contacts: insurance ground wire contact (14), zero line contact (22), live wire contact (23) are formed, loam cake (12) is stretched out in live wire contact (23), zero line contact (22) upper end, chassis (10) is stretched out in the lower end, and insurance ground wire inserted sheet (14) only upper end stretches out loam cake (12).