CN2662479Y

CN2662479Y - An electric joint capable of being used in harsh environments

Info

Publication number: CN2662479Y
Application number: CN 200320109711
Authority: CN
Inventors: 刘正圃
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-31
Filing date: 2003-10-31
Publication date: 2004-12-08
Anticipated expiration: 2013-10-31

Abstract

The utility model relates to an electrical connector which is used conveniently in bad environment. A socket assembly comprises a loading housing and a socket insulator; the socket insulator is inner-connected with the loading housing, the socket insulator is provided with a conductor socket hole; the bottom of the conductor socket hole is connected with wires; a swelling head and a back-aiding spring are arranged in the inner hole of the conductor plug, a limiting screw is arranged on the top end of the swelling head bar and the back-aiding spring; the bar of the back-aiding spring on the swelling head is connected with the conductor plug; the other end of the conductor socket is fixedly connected with a fixing nut; wires and cables are fixedly connected with the hole on the bottom of the conductor plug; the outside of the conductor plug is connected with a plug insulator; a sealing ring is arranged between the plug assembly and the socket assembly; a spire cover is connected with the outer side of the plug insulator; a power cover is connected with the outer side of the cables. The utility model has the advantages of simple structure, convenient operation, rapid connection and good sealing performance. And the utility model is used to transfer the under-well heating loads with voltage above 1000V and current above 60A and is applied to the spicing work situation of cables which transfers large current in field construction, and avoids slurry infestation and is low in consumption.

Description

A kind of electric connection that can in adverse circumstances, use

Technical field

The utility model relates to a kind of electric connection, particularly a kind of electric connection of using in the adverse circumstances under oilfield of being suitable for.

Background technology

At present, the mode of connection of oil well lower wire is the on-the-spot then sealing of manual wiring, perhaps uses the connected mode of ordinary plug.The major defect of its existence is: use extremely inconvenience, connect more time-consuming taking a lot of work, and reliability is relatively poor; Poor sealing incompatibility adverse circumstances, short circuit easily; Loose contact easily produces spark and causes the danger of fire to take place.

Summary of the invention

It is a kind of simple in structure, easy to operate that the utility model provides, and connects fast, and sealing is good, does not produce the possibility of spark, contacts a kind of completely electric connection that can use in adverse circumstances.

The technical scheme that realizes goal of the invention is to solve like this: comprise plug assembly and socket assembly, its improvements of the present utility model are that said socket assembly comprises and are connected with the socket insulator in the load shell, on the socket insulator, be provided with two or more conductor socket apertures at least, be connected with electric wire in the bottom of conductor socket aperture; Said plug assembly comprises that pin insulator is provided with at least two or more and the corresponding conductor plug of conductor socket aperture, be connected with in the endoporus of conductor plug to overlap on rise head and the head extending rod and help extractor, one end of head extending rod is provided with limited screw, one end of conductor plug is fixedlyed connected with hold-down nut, hole by the conductor plug bottom connects electric wire and cable, the outside of conductor plug is connected with pin insulator, between plug assembly and socket assembly, be provided with sealing ring, the outside at pin insulator connects helical casing, the outside at cable also is connected with the power supply cover, and pin insulator is connected with the load shell and by screw.

The utility model compared with prior art, and is simple in structure, easy to operate, connects fast, and sealing is good, does not produce the possibility of spark, is applicable to connection electric heater unit under the oil well.The degree of depth of oil well reaches thousands of rice, and electric heater unit is positioned at foot.The special cable 10 that uses the utility model electric connection to connect in calandria and the oil pick-up tube can reach the heating tube wall, reduces the viscosity of high viscous oil, high wax oil, thereby reaches the purpose that improves output.Electric connection is used to transmit the down-hole heating load of 1000V, the above electric current of 60A.Also can be used for the middle of electric power transfer connects.The utility model electric connection can also be used for the use occasion that continues of the big electric current removal cable of field construction, can accelerate connecting time, avoids muddy water to invade and harass.Easy to operate, contact is good, and loss is little.

Description of drawings

Fig. 1 is the utility model master TV structure profile;

Fig. 2 is the three-dimensional half sectional view of the socket of Fig. 1;

Fig. 3 is the three-dimensional half sectional view of the plug of Fig. 1.

Embodiment

Accompanying drawing is a specific embodiment of the utility model.

Below in conjunction with accompanying drawing content of the present utility model is described further.

With reference to Fig. 1, Fig. 2, shown in Figure 3, comprise plug assembly and socket assembly.Said socket assembly comprises and is connected with socket insulator 2 in the load shell 1, is provided with two or more conductor socket apertures 3 at least on socket insulator 2, is connected with electric wire 16 in the bottom of conductor socket aperture 3; Said plug assembly comprises that pin insulator 7 is provided with at least two or more and conductor socket aperture 3 corresponding conductor plugs 6, be connected with in the endoporus of conductor plug 6 rise 4 and head extending rod on cover help extractor 5, one end of head extending rod is provided with limited screw 14, one end of conductor plug 6 is fixedlyed connected with hold-down nut 8, hole by conductor plug 6 bottoms connects electric wire 17 and cable 10, the outside of conductor plug 6 is connected with pin insulator 7, between plug assembly and socket assembly, be provided with sealing ring 12,15, the outside at pin insulator 7 connects helical casing 9, also be connected with power supply cover 11 in the outside of cable 10, pin insulator 7 and load shell 1 also fixedlyed connected by screw 13, and said conductor plug 6 and conductor socket aperture 3 can be that copper or aluminium or other electric conducting materials are made.

Given conductor plug 6, the conductor socket aperture 3 of accompanying drawing is copper spare, when helical casing 9 screws, oppresses sealing ring 12,15 on the one hand, makes the part that electrically connects of joint be hedged off from the outer world, and forms sealed environment; On the one hand plug copper spare 6 is headed into socket copper spare 3, blind hole bottom compressing a rising taper hole of 4 indentation plug copper spares 6 of socket copper spare 3, the inner conical surface that 4 the male cone (strobilus masculinus) of rising struts the plug copper spare 6 that has fluting expands it and realizes closely contacting with socket copper spare 3, helical casing 9 revolves tightly more, closely the pressure of contact is big more, 6 and 3 contact resistance is more little, and sealing is good more simultaneously.When unclamping helical casing 9, help extractor 5 to rise and 4 eject, plug copper spare 6 retractions withdraw from socket copper spare 3 smoothly.

Be installed as the power unit assembly of one, promptly helical casing 9, pin insulator 7, plug copper spare 6, rise 4, help extractor 5, limited screw 14 etc., with the load assembly, promptly load shell 1, socket insulator 2, socket copper spare 3 break away from, and finish the grafting function.

According to technique scheme, the utility model also has following measure: the hole of each socket copper spare 3 cooperates suitably with the external diameter of plug copper spare 6, simultaneously the front portion of plug copper spare 6 has 4 flutings to make its be risen 4 to head into after the cone distending 0.5mm promptly inflatable tensioning socket copper spare 3; Each angle of taper of 4 of rising is suitable, makes when helical casing 9 unclamps, help extractor 5 to be easy to 4 eject from plug copper spare 6 rising, and limited screw 14 has limited the distance of the head ejection of rising; The contact-making surface of socket insulator 2 and pin insulator 7 fixed copper spares is provided with the high annular protrusion of 6mm respectively and corresponding recesses is used to increase interelectrode creepage distance, make its dielectric strength be not less than 2000V, plug copper spare 6 is circumferential arrangement with socket copper spare 3 on insulator; Two positions that contact with top and the bottom of helical casing 9, the heat-resisting oil resistant seal washer 12,15 of rubber-like with rubber or organic material matter.

Be applicable to connection electric heater unit under the oil well.The degree of depth of oil well reaches thousands of rice, and electric heater unit is positioned at foot.The special cable 10 that uses the utility model electric connection to connect in calandria and the oil pick-up tube can reach the heating tube wall, reduces the viscosity of high viscous oil, high wax oil, thereby reaches the purpose that improves output.Only need during connection the plug assembly of power unit is aimed at the socket assembly that connects load, screw helical casing 9 with pipe wrench then and get final product.Because the down-hole object is immersed in the mixture of oil, water, natural gas, if it is abnormally dangerous to run into electric spark, the utility model electric connection good seal, contact stops to produce the possibility of electric spark fully.Plug copper spare 6 contacts fully with socket copper spare 3, can bear than big electric current and not generate heat.The utility model electric connection is used to transmit the down-hole heating load of 1000V, the above electric current of 60A.Above-mentioned oil well reaches thousands of rice, connects same the utility model electric connection that uses in the middle of the electric power transfer.The utility model electric connection can also be used for the use occasion that continues of the big electric current removal cable of field construction, can accelerate connecting time, avoids muddy water to invade and harass.Easy to operate, contact is good, and loss is little.

Claims

1, a kind of electric connection that can in adverse circumstances, use, comprise plug assembly and socket assembly, it is characterized in that said socket assembly comprises is connected with socket insulator (2) in the load shell (1), on socket insulator (2), be provided with two or more conductor socket apertures (3) at least, be connected with electric wire (16) in the bottom of conductor socket aperture (3); Said plug assembly comprises that also pin insulator (7) is provided with at least two or more and the corresponding conductor plug of conductor socket aperture (3) (6), be connected with in the endoporus of conductor plug (6) to overlap on rise head (4) and the head extending rod and help extractor (5), one end of head extending rod is provided with limited screw (14), one end of conductor plug (6) is fixedlyed connected with hold-down nut (8), hole by conductor plug (6) bottom connects electric wire (17) and cable (10), the outside of conductor plug (6) is connected with pin insulator (7), between plug assembly and socket assembly, be provided with sealing ring (12,15), the outside at pin insulator (7) connects helical casing (9), also be connected with power supply cover (11) in the outside of cable (10), pin insulator (7) is also fixedlyed connected by screw (13) with load shell (1).

2, according to described a kind of electric connection that can use in adverse circumstances of right 1, the front portion that it is characterized in that said conductor plug (6) is provided with 4 flutings makes its head (4) that risen head into distending 0.3-1.0mm after the cone.

3,, it is characterized in that the axial contact-making surface of said socket insulator (2) and pin insulator (7) fixed conductor is provided with annular protrusion and corresponding recesses respectively according to described a kind of electric connection that can in adverse circumstances, use of right 1.

4,, it is characterized in that said conductor plug (6) and conductor socket aperture (3) are circumferential arrangement on insulator according to described a kind of electric connection that can in adverse circumstances, use of right 1.

5,, it is characterized in that said conductor plug (6) and conductor socket aperture (3) can be that copper or aluminium or other electric conducting materials are made according to described a kind of electric connection that can in adverse circumstances, use of right 1.