CN105006691A

CN105006691A - Improved plug

Info

Publication number: CN105006691A
Application number: CN201510354642.6A
Authority: CN
Inventors: 冯双喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-24
Filing date: 2015-06-24
Publication date: 2015-10-28

Abstract

An improved plug comprises a plug body, wherein the lower end surface of the plug body is provided with metal pins, the rear end of the plug body is connected with a power line. The improved plug is characterized in that a through hole which penetrate through vertically is formed in a central position between metal pins on the plug body, and a screw rod is inserted in the through hole from top to bottom and is matched, connected and fixed with a nut fixed inside the plug body in an up and down movable manner. The product is simple in structure and very convenient to use, the screw rod is arranged on the plug, the metal pins are pushed to move by pressing the screw rod against the socket surface, thus the unplugging of the socket is very simple and safe, the risk of electric shock is avoided, the connection between the screw rod and the plug is stable and not liable to fracture and damage, and the improved plug is simple in structure, convenient to use and low in cost.

Description

A kind of improved plug

Technical field

The present invention relates to a kind of attaching plug, especially a kind of power supply improved plug of electric equipment products.

Background technology

In daily life; along with increasing of household electrical appliance; often can need to plug attaching plug; generally, people extract outward by holding plug, but plug is all generally more firmly be inserted on socket; so when firmly choosing; socket will be difficult to fix, and is not drawn out easily, and just has the danger of electric shock if hand humidity is chosen during plug.Also there is a lot of improved plug now, improve the applicability of plug, avoid the supporting member fracture damage of described plug simultaneously, but this plug construction is more complicated, manufacturing cost is also higher, and conflict strength is large not, on big current socket, effect is undesirable, easily causes supporting member fracture damage.

The maximum 50N of conventional jack UL standard contact engaging and separating force, user can extract.And the socket current-carrying part of big current is relative to large and wide conventional jack, chucking power UL standard normal, can be very large about 356N (not having the upper limit), therefore not easily inserts and extract.

Summary of the invention

Technical problem to be solved by this invention be provide for the above-mentioned state of the art that a kind of structure is simple, easy to use, conflict strength is large, be adapted at improved plug that big current socket uses.

The present invention solves the problems of the technologies described above adopted technical scheme: a kind of improved plug, comprise header body, the lower surface of header body is provided with metal pin, the rear end of header body is connected with power line, it is characterized in that: the centre position in described header body, between metal pin is provided with about one through hole run through, the screw rod of a band handle portion be inserted in from top to bottom to coordinate in through hole and with a nut be fixed in header body can be up and down be connected and fixed.

As improvement, be provided with in described header body:

One pedestal, it is provided with a storage tank, a limit chamber is formed at the middle part of storage tank, described limit chamber and header body run through through hole on the same axis and interconnect, described nut is embedded in limit chamber, is provided with for the fixing slot of metal pin plant in the outside surrounding of the bottom of storage tank, limit chamber;

One lid, is placed in the top of pedestal, is connected with pedestal is involutory, and lid is provided with the hollow joint pin coordinated with nut position;

Described screw rod through the through hole of header body, the hollow joint pin of lid, is threaded with the screw of nut from top to bottom movably.

As improvement, described limit chamber is hexagon cavity, and described nut is hexagonal (hexagon)nut.

Improve, described pedestal and the rear end of lid form the mutually corresponding recess placed for wire again.

Improve, described header body adopts PVC plastic glue to make again, described pedestal and lid involutory after be fixed together by header body integral coating.

Further improvement, described metal pin is three conductive inserts and a grounding copper piece.

Finally, the upper end of described screw rod is provided with handle portion.

Compared with prior art, the invention has the advantages that: product structure is simple, very easy to use, plug arranges the screw rod of band handle portion, the socket of correspondence of being conflicted by screw rod, promote plug outward movment, metal pin certainly will be driven to depart from jack on socket, thus the plug that makes to choose becomes very simple, safety, avoid the danger of electric shock, and screw rod and plug stable connection, not easily fracture damage, plug strength is large, can 540N be reached, structure of the present invention is simple, easy to use, cost is lower.

Accompanying drawing explanation

Fig. 1 is the structural upright schematic diagram of the embodiment of the present invention;

Fig. 2 is the structure cutaway view of the embodiment of the present invention;

Fig. 3 is the STRUCTURE DECOMPOSITION figure of the embodiment of the present invention;

Fig. 4 is the structural representation of screw rod under the state of stretching out of the embodiment of the present invention.

Embodiment

Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.

As shown in Figures 1 to 4, a kind of improved plug, comprise all-in-one-piece header body 5, described header body 5 adopts PVC plastic glue to make, the lower surface of header body 5 is provided with metal pin, the rear end of header body 5 is connected with power line, described metal pin is three conductive inserts 6 and a grounding copper piece 1, in being arranged on the lower surface of header body 5 up and down, in described header body 5, the center being positioned at three conductive inserts 6 and a grounding copper piece 1 is provided with about one through hole run through 2, one screw rod 4 is inserted in through hole 2 from top to bottom, and coordinate with a nut 10 be fixed in header body 5 can be up and down be connected and fixed, be provided with in described header body 5: a pedestal 8, it is provided with a storage tank 15, a hexagonal limit chamber 14 is formed at the middle part of storage tank 15, described limit chamber 14 and header body 5 run through through hole 2 on the same axis and interconnect, described nut 10 is hexagonal (hexagon)nut, be embedded at limit chamber 14 internal fixtion, in the bottom of storage tank 15, the outside surrounding of limit chamber 14 is provided with and plants fixing slot 13,16 for metal pin, one lid 7, is placed in the top of pedestal 8, is connected with pedestal 8 is involutory, and lid 7 is provided with the hollow joint pin 11 coordinated with nut 10 position, described screw rod 4 is from top to bottom through the through hole 2 of header body 5, the hollow joint pin 11 of lid 7, be threaded movably with the screw of nut 7, and be provided with handle portion 3 in the upper end of screw rod 4, when needing to choose plug, as long as rotatable handle portion 3, screw rod 4 is moved down stretch out the bottom through-hole 2 of header body 5, as shown in Figure 4, thus the surface of conflict socket, promote metal pin upwards movable, and then pull the plug out of the socket easily, described three conductive inserts 6 are inserted in the slot 16 of left and right, the below of limit chamber 14 respectively, described grounding copper piece 1 is inserted in the top slot 13 of limit chamber 14, described pedestal 8 and the rear end of lid 7 form the mutually corresponding recess 12,17 placed for wire, together with being coated and fixed by header body 5 after described pedestal 8 is involutory with lid 7.

Its operation principle is, utilize screw-drive mechanism principle dexterously, rotate the handle portion 3 of screw rod 4 by hand, screw rod 4 is moved down, pass the through hole 2 of header body 5, and stretch out downwards, naturally contact in receptacle face, because nut, inserted sheet are fixed together, such plug will be pushed up lentamente by screw rod 4 and pull out from socket, when screw rod is screwed into completely, inserted sheet just in time departs from socket interpolation spring bite, facilitates user easily to pull the plug out of the socket like this;

The about 52mm of handle portion 3 diameter of screw rod 4, screw pitch 3mm, handle rotates a circle displacement 163mm, and lead-screw moves forward 3mm, according to screw-drive mechanism principle simultaneously, transmission and the displacement of power are inversely proportional to, ignore friction loss=163/3 ≈ 54 times, namely make in handle portion the revolving force adding 10N, ignore friction loss, the thrust of screw tip just can reach 540N, and the socket being highly suitable for big current is applied.

Claims

1. an improved plug, comprise header body, the lower surface of header body is provided with metal pin, the rear end of header body is connected with power line, it is characterized in that: the centre position in described header body, between metal pin is provided with about one through hole run through, the screw rod of a band handle portion be inserted in from top to bottom to coordinate in through hole and with a nut be fixed in header body can be up and down be connected and fixed.

2. improved plug according to claim 1, it is characterized in that being provided with in described header body: a pedestal, it is provided with a storage tank, a limit chamber is formed at the middle part of storage tank, described limit chamber and header body run through through hole on the same axis and interconnect, described nut is embedded in limit chamber, is provided with for the fixing slot of metal pin plant in the outside surrounding of the bottom of storage tank, limit chamber; One lid, is placed in the top of pedestal, is connected with pedestal is involutory, and lid is provided with the hollow joint pin coordinated with nut position; Described screw rod through the through hole of header body, the hollow joint pin of lid, is threaded with the screw of nut from top to bottom movably.

3. improved plug according to claim 2, it is characterized in that described limit chamber is hexagon cavity, described nut is hexagonal (hexagon)nut.

4. improved plug according to claim 3, is characterized in that described pedestal and the rear end of lid form the mutually corresponding recess placed for wire.

5. improved plug according to claim 4, is characterized in that described header body adopts PVC plastic glue, described pedestal and lid involutory after be fixed together by header body integral coating.

6. the improved plug according to the arbitrary claim of claim 1 to 5, is characterized in that described metal pin is three conductive inserts and a grounding copper piece.