CN2189786Y

CN2189786Y - Singal-phase double-pole rotary-sheet type universal plug not capable of reconducting

Info

Publication number: CN2189786Y
Application number: CN 93246302
Authority: CN
Inventors: 周小明
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-26
Filing date: 1993-11-26
Publication date: 1995-02-15
Anticipated expiration: 2003-11-26

Abstract

The utility model relates to a single-phase double-pole rotary-sheet type universal plug not capable of reconnecting, belonging to a novel plug with wide using range in the technical field of the daily used electrical appliance. Inserting pieces only need to be symmetrically rotated, and the utility model can be used on a single-phase two-pole socket or a single-phase three-pole socket. The utility model is composed of three parts of a plug body, a plug pin, and a positioning pin. A guide sleeve is welded with a plug cord, and is inserted into the plug body. The plug pin is in integral injection mould by the inserting pieces and a rotation shaft, the ends of the inserting pieces are inserted into the guide sleeve, and the positioning pin passes through the positioning slot of the rotation shaft to be fixed in the positioning hole of the plug body. The utility model is suitable for matching with various portable single-phase two-pole electric appliances.

Description

Singal-phase double-pole rotary-sheet type universal plug not capable of reconducting

The utility model belongs to a kind of single-phase the two poles of the earth rotating piece type automatic common pin that can not the reclosing type in the household appliance technical field.

For a long time, the basic structural feature of single-phase the two poles of the earth plug is exactly: adopt fixed inserted sheet.Its structures shape its application limitation, that is: can only on single-phase two pole sockets, use, and can't insert single-phase three pole sockets.In order to improve this situation, improve the versatility of single-phase the two poles of the earth plug, " button " single-phase the two poles of the earth common pins (CN88219115.2) are successively arranged; The single-phase the two poles of the earth of monolithic devices shifting rotary type common pin series of productss such as (CN90214443X) has been realized the general utility functions of plug to two kinds of sockets with different conversion regimes, in research to above-mentioned various plugs, released a kind of more new-type plug today again, that is: can not the single-phase the two poles of the earth of reclosing type rotating piece type automatic common pin.

The purpose of this utility model is: by improvement, changes the function conversion regime into " rotating piece type automatic " by " shifting rotary type ", realizes the one-time-reach-place of function transformation energy CN90214443.X, and convenient, and can simplify process structure, and reduce cost, improve positioning accuracy.

Structure of the present utility model is seen shown in the 1st page in the accompanying drawing: Fig. 1 is plug body external form and cutaway view; Fig. 2, Fig. 3 are respectively the end surface shape of single-phase the two poles of the earth and three utmost points (only referring to N, the L utmost point) plug slice; Fig. 4 is the front view of latch; Fig. 5 is the profile of latch; Fig. 6 is the vertical view of latch.

Whole plug is by plug body (1), the latch (see figure 4), alignment pin (6) three parts are formed: first is a plug body, two stepped holes of its end face symmetrical distribution, concentric with bore end guide pin bushing (2), guide pin bushing (2) and plug cord (3) welding back embedding is annotated in plug body (1), and plug body (1) goes up plane symmetry two location holes that distribute, and the axis in hole and front aperture are tangent and perpendicular to last lower plane.Second portion latch (see figure 4) is injected into one by inserted sheet (4) and rotating shaft (5), inserted sheet (4) is step-like, on the big transverse plane location hole is arranged, the middle part is injected into one with rotating shaft (5), have an elastic groove on the little transverse plane, its outer garden is pressed in guide pin bushing (2) hole in the plug head hole, rotating shaft (5) is the garden cylindricality, with plug body (1) front end macropore movingly, there is location notch in the stage casing, bottom surface, groove top is parallel with inserted sheet (4), 150 ° of bottom and top angles, and the garden arc connects between two sections location notchs.Third part is alignment pin (6), and it passes the location notch in rotating shaft (5) stage casing, is fixed in the location hole on the plug body, and latch is play axially and the angle location effect.

The purpose of this utility model is achieved in that

When needs with plug from first kind of state (see figure 2) during to the conversion of second kind of state (see figure 3), promptly from single-phase the two poles of the earth when single-phase three utmost points (only referring to N, the L utmost point) state exchange, only need outwards rotate left and right inserted sheet symmetrically respectively, can realize.The small end of inserted sheet this moment (4) is along with rotor rotates in guide pin bushing (2), when simultaneously the bottom surface, location notch top in rotating shaft (5) stage casing is then by beginning and the fit-state of alignment pin (6) along with rotor, formed an angle gradually, the angle state that the location notch bottom face is then formed by when beginning and alignment pin (6) is along with rotor, angle is more and more littler, so that recline, finish angle location with alignment pin (6).Otherwise, inside rotor symmetrically again, inserted sheet (4) promptly sets back, and has realized general on two kinds of sockets thus.

Advantage of the present utility model is:

1. adopting can not the reclosing type, and it is directly supporting to be suitably for single-phase the two poles of the earth electrical equipment most.

2. adopted rotating piece type automatic, compared with CN90214443X, function conversion one-time-reach-place is convenient; Save two springs and two collars, annotated by the embedding that changes into movingly in past between inserted sheet (2) and the rotating shaft, simplified process structure, reduced cost, also reduced accumulated error, improved positioning accuracy and intensity.

3. keep comparatively stable contact pressure between inserted sheet (4) end and the guide pin bushing, improved the admittance quality.

Application of the present utility model will make single-phase the two poles of the earth electrical equipment go everywhere without any hindrance here on the 220V power line socket.

The best way that the utility model is implemented is as follows:

Guide pin bushing after the processing (material is a copper tube) welds with plug cord, annotates in plug body (1) plug body material suggestion polyvinyl chloride by the injection moulding embedding; The inserted sheet material is the H68 brass sheet, carries out nickel plating after the drawing, and embedding is annotated in rotating shaft (5) again, and rotating shaft (5) alignment pin (6) can outpour in a mould, and material can be used ABS.The utility model is easy to assembly, only needs the latch (see figure 4) that processes is inserted respectively in two holes of plug body (1) front end face, is pressed into alignment pin (6) again and promptly is assembled into shape.

The corner and the axial location function that have according to above-mentioned latch (see figure 4) and alignment pin (6); change the elastic groove of inserted sheet small end into a screw; join a screw and packing ring again; be used to compress plug cord, plug body changes upper and lower two into, and alignment pin and plug body design are together; line outlet can be made into big garden arc or horn-like; also available flexible PVC is made to wag the tail and is pressed in line outlet, the protection plug cord, and upper and lower two of plug body tightens up by screw and nut.New, practical, as to be suitable for user's replacing most new plug, that is: " packaging " single-phase the two poles of the earth rotating piece type automatic common pin have so just been formed.See the 2nd page in accompanying drawing, Fig. 7 is the profile and the cutaway view of plug, and Fig. 8 is the decomposing schematic representation of plug, and wherein:

part

7,11 is a screw and nut;

Part

8,10 is upper and lower of plug body; Part 9 is a latch, and

part

12,13 is the screw and the packing ring of line ball; The plug body material is optional with urea-formaldehyde moulding powder or ABS, and screw, nut, packing ring adopt zinc-plated standard component, and inserted sheet adopts the H68 brass sheet, and embedding is annotated among the rotating shaft of ABS material after punching out, the nickel plating.

Claims

1, a kind of by plug body, latch, alignment pin form can not the single-phase the two poles of the earth of reclosing type rotating piece type automatic common pin, it is characterized in that: two stepped holes are symmetrically distributed on the plug body end face, concentric with the bore end guide pin bushing, guide pin bushing and plug cord welding back embedding are annotated in plug body, plane symmetry two location holes that distribute on the plug body, the axis in hole and front end face are tangent and perpendicular to last lower plane; Latch is injected into one by inserted sheet and rotating shaft, inserted sheet is step-like sheet copper, on the big transverse plane location hole is arranged, and the middle part embedding is annotated in rotating shaft, have an elastic groove on the little transverse plane, its outer garden is pressed in the dowel hole in the plug body front aperture, and rotating shaft is the garden cylindricality, with plug body front end macropore movingly, there is location notch in the stage casing, the bottom surface, top is parallel with inserted sheet, 150 ° of bottom and top angles, and the garden arc connects between two sections location notchs; Alignment pin is the garden cylindricality.

2, common pin according to claim 1 is characterized in that: the elastic groove of inserted sheet small end changes screw into, and joins a screw and packing ring; Plug body changes upper and lower two into, and alignment pin and plug body design together, and line outlet can be made into big garden arcuation or bell mouth shape, and also available flexible PVC is made to wag the tail and is stuck in line outlet; Fastening from the middle part between upper and lower two plug body by screw and nut.