CN2891347Y

CN2891347Y - Improved power supply plug structure

Info

Publication number: CN2891347Y
Application number: CN 200520146991
Authority: CN
Inventors: 张庆康
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-26
Filing date: 2005-12-26
Publication date: 2007-04-18
Anticipated expiration: 2015-12-26

Abstract

The utility model relates to a power plug, which comprises a patch area for receiving electric outlet plugs. Electric conductors which form a circle switching together with the electric outlet plugs are respectively arranged on the axial and the radial directions of the patch area, wherein at least an elastic fastener is arranged on the radial direction of the electric outlet hole which is relative to the patch area. When the power plug is plugged into the electric outlet to locate, the elastic fastener offsets a hole edge of the electric outlet, and the joining strength of the power plug and the electric outlet is increased to prevent the abnormal separation of the power plug.

Description

The structure-improved of attaching plug

Technical field

The relevant a kind of attaching plug of the utility model, especially the electrical prong structure at the supply socket form that meets automobile cigarette lighter is improved, aim to provide a kind of bond strength that can effectively increase attaching plug and supply socket, prevent the undesired anti-loose structure that comes off of attaching plug.

Background technology

As shown in Figure 1, structure cutaway view after the attaching plug 20 that uses of matching for the supply socket 10 of general automobile cigarette lighter and with it engages, wherein supply socket 10 has one in order to attaching plug 20 fixations, and have the metal sleeve 11 of ground connection effect, be provided with a power output end 12 in the position that corresponds to metal sleeve 11 heels; As for, 20 cordings of attaching plug a grafting section 21 that inserts supply socket 10 is arranged, be respectively equipped with the

electric conductor

22,23 that continues with the supply socket forming circuit at the axially and radially position of grafting section 21.

When attaching plug 20 inserts supply socket 10 to the location, the electric conductor 22 at attaching plug 20 axial positions is to contact with the power output end 12 of

supply socket

10,23 of electric conductors radially are to contact with the metal sleeve 11 of supply socket 10, and then constitute basic power supply supply loop, and attaching plug 20 radially the electric conductor more than 23 at position be the structure kenel that is designed to the shell fragment shape, produce comparatively urgent grafting effect in the hope of metal sleeve 11, can keep basic joint effect after making attaching plug 20 insert supply sockets 10 with supply socket 10.

When reality is used, general and the supply socket of automobile cigarette lighter match, and mostly the attaching plug of use is to be connected with a power line and affiliated electric device connects mutually, therefore through regular meeting because this power line is pullled and attaching plug is come off, some attaching plug of using of matching with the supply socket of automobile cigarette lighter is to be form as shown in Figure 2 even, the tail end of this attaching plug 20 is to be provided with to change the supply hub 24 of angle by electricity, allow the attaching plug 20 of same format peg graft, make external attaching plug 20 have the function of angle adjustment; Yet, the strength when this attaching plug 20 that directly plugs with supply socket 10 will be extracted out because of external attaching plug 20 and with supply socket 10 disengagings, cause the inconvenience in the use.

The utility model content

The purpose of this utility model provides a kind of bond strength that can effectively increase attaching plug and supply socket, prevents the undesired anti-loose structure that comes off of attaching plug.

In view of this, attaching plug of the present utility model is respectively equipped with the electric conductor that continues with the supply socket forming circuit except the axially and radially position at the grafting section, further be provided with at least one spring secures rail to sleeper at the radially position that the grafting section corresponds to the supply socket peritreme, and insert supply socket when locating at attaching plug, compress peritreme place with supply socket by spring secures rail to sleeper, increase the bond strength of attaching plug and supply socket, come off to prevent that attaching plug is undesired.

Description of drawings

Fig. 1 is an engagement state cutaway view of commonly using attaching plug and supply socket;

Fig. 2 is an appearance assumption diagram of commonly using attaching plug;

Fig. 3 is the attaching plug appearance assumption diagram of the utility model first embodiment;

Fig. 4 is the attaching plug of the utility model first embodiment and the engagement state cutaway view of supply socket;

Fig. 5 is the attaching plug appearance assumption diagram of the utility model second embodiment;

Fig. 6 is the attaching plug of the utility model second embodiment and the engagement state cutaway view of supply socket;

Fig. 7 is the attaching plug appearance assumption diagram of the utility model the 3rd embodiment.

[figure number explanation]

10 supply sockets, 22 electric conductors

11 metal sleeves, 23 electric conductors

12 power output ends, 24 supply hubs

20 attaching plugs, 25 elasticity buttons

21 grafting sections

Embodiment

The structure-improved of the utility model attaching plug, the basic structure of its whole attaching plug is formed as shown in Figures 3 and 4, be to have a grafting section 21 that inserts supply socket 10, axially and radially position at grafting section 21 is respectively equipped with the

electric conductor

22,23 that continues with supply socket 10 forming circuits, when implementing, axially the electric conductor 22 at position is the columnar structures of stretching out ora terminalis, radially 23 elastic piece structure bodies for protrusion grafting section 21 outer rims of the electric conductor at position.

When attaching plug 20 inserts supply socket 10 to the location, the electric conductor 22 at attaching plug 20 axial positions can contact with the power output end 12 of

supply socket

10,23 of electric conductors radially contact with the metal sleeve 11 of supply socket 10, and then constitute basic power supply supply loop, and produce urgent grafting effect with the metal sleeve 12 of supply socket 10, make attaching plug 20 can keep basic joint effect after inserting supply sockets 10.

Especially, attaching plug 20 further is provided with at least one spring secures rail to sleeper 25 at the radially position that grafting section 21 corresponds to supply socket 10 peritremes, and when attaching plug 20 inserts supply socket 10 to the location, compress peritreme place with supply socket 10 by spring secures rail to sleeper 25, increase the bond strength of attaching plug 20 and supply socket 10, come off to prevent that attaching plug is undesired; Therefore, when attaching plug 20 of the present utility model is for as shown in the figure, be be provided with in its end can rotational angle supply hub 24 and during structure kenel that can external other attaching plug 20, the pulling force that the bond strength of itself and supply socket 10 is enough to bear external power supply plug 20 when extracting out prevents attaching plug 20 undesired coming off.

In the middle of Fig. 3 and embodiment shown in Figure 4, spring secures rail to sleeper 25 is made of the bulbous member of protruding grafting section 21 outer rims, in the specific implementation, spring secures rail to sleeper 25 can be made of the strip member as Fig. 5 and protrusion grafting section 21 outer rims shown in Figure 6, or as shown in Figure 7, constituted by the loop shaped member that protrudes grafting section 21 outer rims, all reached the bond strength of above-mentioned increase attaching plug 20 and supply socket 10, to prevent the attaching plug 20 undesired purposes that come off.

As mentioned above, the utility model provides a preferable feasible electrical prong structure, so offer the application of novel patent in accordance with the law; Yet, above implementation and graphic shown in, be the utility model preferred embodiment, be not to limit to the utility model with this, be with, approximate with structure of the present utility model, device, feature etc., identical such as, all should belong to of the present utility model founding within purpose and the claim.

Claims

1, a kind of structure-improved of attaching plug is to have a grafting section that inserts supply socket, is respectively equipped with the electric conductor that continues with the supply socket forming circuit at the axially and radially position of grafting section; It is characterized in that:

The radially position that this grafting section corresponds to the supply socket peritreme is provided with at least one and inserts supply socket when locating at attaching plug, compress peritreme place with supply socket, increase the bond strength of attaching plug and supply socket, to prevent the undesired spring secures rail to sleeper that comes off of attaching plug.

2, the structure-improved of attaching plug as claimed in claim 1 is characterized in that, this spring secures rail to sleeper is for protruding the bulbous member of grafting section outer rim.

3, the structure-improved of attaching plug as claimed in claim 1 is characterized in that, this spring secures rail to sleeper is for protruding the strip member of grafting section outer rim.

4, the structure-improved of attaching plug as claimed in claim 1 is characterized in that, this spring secures rail to sleeper is for protruding the loop shaped member of grafting section outer rim.