CN2657222Y

CN2657222Y - Power supply plug

Info

Publication number: CN2657222Y
Application number: CN 200320118327
Authority: CN
Inventors: 黄子成
Original assignee: SONGGANG YISHENG PRODUCT MANUFACTORY BAO'AN DISTRICT SHENGZHEN
Current assignee: SONGGANG YISHENG PRODUCT MANUFACTORY BAO'AN DISTRICT SHENGZHEN
Priority date: 2003-11-17
Filing date: 2003-11-17
Publication date: 2004-11-17
Anticipated expiration: 2013-11-17

Abstract

The utility model discloses a power plug which comprises a plug body and a plug inner shell. The top of the plug inner shell has a cut, and the plug inner shell is fixed in the plug body. The inner wall of the lateral wall of the plug shell extends inwards into a baffle which can separate the three polarity electric connection terminal riveting feet of the plug body. The bottom of the inner wall of the literal wall of the plug shell has a barb which is hung on the terminal surface bottom up. The out wall of the literal wall of the plug shell has a guide groove which matches the polarity pole of the plug body. The power plug of the utility model can prevent the short circuit between electrode and electrode, and also will not result in metal copper wire loosing and an open circuit due to the metal outside force, and also will not result in the electric bad phenomenon due to the metal copper wire being outside the PVC, thus guaranteeing the utility safety of the power plug and the safety of production and assembly; at the same time, because the assembly is guide direct push type, the production cost is saved, the quality is guaranteed and the assembly is much easier and faster.

Description

Attaching plug

[technical field]

The utility model relates to a kind of attaching plug, relates in particular to a kind of attaching plug that can prevent to exist between internal electrode and the electrode electric bad plug inner casing that has.

[background technology]

At present, along with the development and the technological progress of social civilization, the kind of household electrical appliance is increasing, and quality also improves constantly, and it has brought convenience for people's life.But the place that generally makes electrical appliance at home mostly is the exposure place of easy touch, and household electrical appliance need be connected to switch with power supply by plug in use.Existing attaching plug manufacturer is innumerable, form each one, but because of the factor of technology, generation electric shock incident can't be protected human life's property in rapid succession when plug uses and cause at home.

See also Fig. 1, it is the stereogram of existing attaching plug 10.The riveted joint pin 11 of three polarity electric connection terminals of this attaching plug 10 and the exposed metal copper cash (figure does not show) that electrically connects with these three polarity electric connection terminals expose, therefore cause short circuit easily between electrode and the electrode, and can open circuit because of external shock power causes copper lines to get loose, copper lines is exposed at outside the PVC lining and can causes electric bad phenomenon in addition.

[summary of the invention]

Have electric bad shortcoming in order to overcome between internal electrode that existing attaching plug exists and the electrode, the utility model provides a kind of attaching plug that can prevent to exist between internal electrode and the electrode electric bad plug inner casing that has.

For realizing the purpose of this utility model, the technical scheme that the utility model adopted is: a kind of attaching plug is provided, it comprises header body and plug inner casing, the top of this plug inner casing offers opening, this plug inner casing is fixed in this header body, and the inwall of the sidewall of this plug inner casing extends internally out, and be positioned at can be with the plate washer of the separated position of riveted joint pin of three polarity electric connection terminals of this header body.

The bottom of the sidewall of this plug inner casing is provided with barb, and it tips upside down on the terminal surface of this header body.

The outer wall of the sidewall of this plug inner casing has gathering sill, and it cooperates with the polar column of this header body.

The beneficial effects of the utility model are: be positioned at the riveted joint pin and the exposed metal copper cash that the plug inner casing of the plate washer of the separated position of riveted joint pin of three polarity electric connection terminals of header body can be coated fully three polarity electric connection terminals because attaching plug of the present utility model adopts the inwall of sidewall to extend internally out, three polar regions are come every branch, therefore can avoid the short circuit between electrode and the electrode, also can not open circuit because of external shock power causes copper lines to get loose, and can not cause copper lines to be exposed at the electric bad phenomenon that produces outside the PVC lining, therefore guaranteed the safety in utilization of attaching plug and the fail safe of production and assembly; Because assembling is the guiding direct-push, therefore makes and on producing, save cost simultaneously, guarantee quality, and easily assembled quick.

[description of drawings]

Fig. 1 is the stereogram of existing attaching plug.

Fig. 2 is the exploded view of the utility model attaching plug.

Fig. 3 is the upward view of the plug inner casing of attaching plug shown in Figure 2.

Fig. 4 is the assembly drawing of the utility model attaching plug.

[embodiment]

See also Fig. 2 to Fig. 4, attaching plug 20 of the present utility model comprises header body 21 and plug inner casing 22.Wherein header body 21 comprises the exposed metal copper cash (figure does not show) that riveted joint pin 211, terminal surface 212, the polar column 213 of three polarity electric connection terminals of distribution triangular in shape reach and the riveted joint pin 211 of these three polarity electric connection terminals electrically connects; Plug inner casing 22 comprises sidewall 221 and shell top 222, one " U " shape mouth 227 is offered in the centre on shell top 222, the inwall of sidewall 221 in the two-port position of " U " shape mouth 227 extends the two parallel plate washers 223 perpendicular to shell top 222,228, this two parallel plate washer 223,228 and shell top 222 between all have the space that can hold the copper lines that the riveted joint pin with this polarity electric connection terminal electrically connects, this two parallel plate washer 223,228 separate with the riveted joint pin 211 of three polarity electric connection terminals of header body 21 and with the exposed metal copper cash that the riveted joint pin 211 of these three polarity electric connection terminals electrically connects, copper lines passes from " U " shape mouth 227 on shell top 222, the bottom 224 of sidewall 221 is provided with two barbs 225 and 226, it tips upside down on terminal surface 212, so that plug inner casing 22 is fixed on header body 21, the parallel plate washer 223 with two of sidewall 22 1, the opposite side of 228 correspondences is provided with the gathering sill 229 of one " eight " font, and it cooperates with the polar column 213 of header body 21.

Attaching plug 20 of the present utility model also can be fixed in header body 21 with plug inner casing 22 by other securing members such as screws.

When assembling attaching plug 20 of the present utility model, the gathering sill 229 of plug inner casing 22 polar column 213 along header body 21 is down pushed away, two barbs 225 and 226 with the bottom 224 of sidewall 221 tip upside down on the terminal surface 212 of header body 21 at last, thereby finish the assembling of attaching plug 20.

Claims

1, a kind of attaching plug, it comprises header body, it is characterized in that: this attaching plug also comprises the plug inner casing, the top of this plug inner casing offers opening, this plug inner casing is fixed in this header body, and the inwall of the sidewall of this plug inner casing extends internally out, and be positioned at can be with the plate washer of the separated position of riveted joint pin of three polarity electric connection terminals of this header body.

2. attaching plug as claimed in claim 1 is characterized in that the bottom of the sidewall of this plug inner casing is provided with barb, and it tips upside down on the terminal surface of this header body.

3. attaching plug as claimed in claim 1 or 2 is characterized in that having between the top of this plate washer and this plug inner casing the space that can hold the copper lines that the riveted joint pin with this polarity electric connection terminal electrically connects.

4. attaching plug as claimed in claim 3 is characterized in that the outer wall of the sidewall of this plug inner casing has gathering sill, and it cooperates with the polar column of this header body.