CN105161903A

CN105161903A - Waterproof connector for connecting cables

Info

Publication number: CN105161903A
Application number: CN201510360241.1A
Authority: CN
Inventors: 郭卫东
Original assignee: Shanghai Aerospace Science and Industry Appliance Co Ltd
Current assignee: Shanghai Aerospace Science and Industry Appliance Co Ltd
Priority date: 2015-06-26
Filing date: 2015-06-26
Publication date: 2015-12-16
Anticipated expiration: 2035-06-26
Also published as: CN105161903B

Abstract

The present invention discloses a waterproof connector for connecting cables, comprising a nut, an elastic ring, a cable clamp, an insulating terminal base, contact terminals, a first seal ring and a second seal ring; wherein the elastic ring is arranged in a cylinder of the cable clamp, the internal thread of the nut is engaged with the external thread of the cable clamp, the contact terminals are arranged in a terminal base of the insulating terminal base, the insulating terminal base is sleeved on a cable clamp base of the cable clamp. According to the waterproof connector of the present invention, a structure consisting of the nut, the elastic ring and the cable clamp is adopted, the elastic ring is compressed by the nut and the cable clamp, and cables and the elastic ring are extruded to form seal, therefore, the waterproof connector has the advantages of simple and compact structure, convenient installation, repeatable application, and good sealing effect.

Description

A kind of water-proof connector of connection cable

Technical field

The present invention relates to technical field of electric connectors, especially a kind of water-proof connector of connection cable.

Background technology

The cable water-proof connector of prior art generally adopts swivel nut locking mechanism or potting structure waterproof sealing, swivel nut locking mechanism adopts cable through after insulation cushion rubber, by the end face extruding cushion rubber of swivel nut, force cushion rubber to compress and extrude cable, the gap of cable and cushion rubber junction is filled, reach sealing effectiveness, Problems existing is, this structure needs swivel nut to have larger torsion, swivel nut could be tightened by the instrument of using, sealing effectiveness is poor, and swivel nut causes cushion rubber to be extruded distortion under larger torsion, cushion rubber after distortion can not reply original shape, cannot reuse, although potting structure good seal performance, Problems existing is, production efficiency is low, is not suitable for producing in enormous quantities, and after encapsulating, product is non-dismountable, not easy care.

Summary of the invention

The water-proof connector of a kind of connection cable provided for the deficiencies in the prior art is provided, the present invention adopts nut, elastic ring and cable clamp structure, by nut, wire clamp elasticity of compression circle, extruding cable and elastic ring form and seal, have simple and compact for structure, install convenient, can repeated application and the advantage of good sealing effect.

The concrete technical scheme realizing the object of the invention is:

A kind of water-proof connector of connection cable, its feature comprises nut, elastic ring, wire clamp, insulative terminal base, contact terminal, first sealing ring and the second sealing ring composition, the endoporus of described nut is made up of taper hole and straight hole two parts, straight hole section is provided with internal thread, elastic ring is the column that two ends are provided with dome, several through hole is axially arranged with along column, wire clamp is bonded by the wire clamp head of cylindrical shape and the wire clamp seat of rectangle, wherein, cylindric head is provided with cone cylinder, and cone barrel has several helicla flute, the outer wall of cylinder is provided with external screw thread, wire clamp seat is provided with installing hole, the square hole through with cylinder is provided with in wire clamp seat, square hole peripheral hardware first seal groove, insulative terminal base establishes wire clamp mouth and terminal base in being, outer face is provided with the rectangular block of the second seal groove,

Described elastic ring is located in the cylinder of wire clamp, nut is located on the wire clamp head of wire clamp, and the internal thread of nut engages with the external screw thread of wire clamp, the taper hole of nut touches wire clamp and bores helicla flute on barrel, contact terminal is located in the terminal base of insulative terminal base, the wire clamp muzzle of insulative terminal base is contained on the wire clamp seat of wire clamp, first sealing ring is located between the first seal groove of wire clamp and the wire clamp mouth of insulative terminal base, and the second sealing ring is located in the second seal groove of insulative terminal base.

The present invention adopts nut, elastic ring and cable clamp structure, and by nut, wire clamp elasticity of compression circle, extruding cable and elastic ring form and seal, have simple and compact for structure, install convenient, can repeated application and the advantage of good sealing effect.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the structural representation of nut of the present invention;

Fig. 3 is the structural representation of wire clamp of the present invention;

Fig. 4 is the structural representation of elastic ring of the present invention;

Fig. 5 is the using state schematic diagram of wire clamp of the present invention;

Fig. 6 is using state schematic diagram of the present invention.

Embodiment

Consult Fig. 1 ~ Fig. 4, the present invention includes nut 31, elastic ring 32, wire clamp 33, insulative terminal base 34, contact terminal 35, first sealing ring 36 and the second sealing ring 37 form, the endoporus of described nut 31 is made up of taper hole 312 and straight hole two parts, straight hole section is provided with internal thread 311, elastic ring 32 is provided with the column of dome 322 for two ends, several through hole 321 is axially arranged with along column, wire clamp 33 is bonded by the wire clamp head of cylindrical shape and the wire clamp seat of rectangle, wherein, cylindric head is provided with cone cylinder, and cone barrel has several helicla flute 332, the outer wall of cylinder is provided with external screw thread 331, wire clamp seat is provided with installing hole 335, the square hole 333 through with cylinder is provided with in wire clamp seat, square hole 333 peripheral hardware first seal groove 334, insulative terminal base 34 establishes wire clamp mouth 341 and terminal base 342 in being, outer face is provided with the rectangular block of the second seal groove 343,

Described elastic ring 32 is located in the cylinder of wire clamp 33, nut 31 is located on the wire clamp head of wire clamp 33, and the internal thread 311 of nut 31 engages with the external screw thread 331 of wire clamp 33, the taper hole 312 of nut 31 touches wire clamp 33 and bores helicla flute 332 on barrel, contact terminal 35 is located in the terminal base 342 of insulative terminal base 34, the wire clamp mouth 341 of insulative terminal base 34 is sleeved on the wire clamp seat of wire clamp 33, first sealing ring 36 is located between the first seal groove 334 of wire clamp 33 and the wire clamp mouth 341 of insulative terminal base 34, second sealing ring 37 is located in the second seal groove 343 of insulative terminal base 34.

The present invention uses like this:

Consult Fig. 1 ~ Fig. 4, first many cables are passed by the through hole 321 of nut 31 and elastic ring 32 one by one, then pass by square hole 333 through with cylinder on wire clamp 33, finally many cables are connected with contact terminal 35 one by one; Contact terminal 35 is located in the terminal base 342 of insulative terminal base 34; First sealing ring 36 is loaded in the first seal groove 334 of wire clamp 33, again the wire clamp mouth 341 of insulative terminal base 34 is sleeved on the wire clamp seat of wire clamp 33, the first sealing ring 36 is sealed between the first seal groove 334 of wire clamp 33 and the wire clamp mouth 341 of insulative terminal base 34; Again by elastic ring 32 in the cylinder that cable moves to wire clamp 33, nut 31 is buckled on the wire clamp head of wire clamp 33, the internal thread 311 of nut 31 is engaged with the external screw thread 331 of wire clamp 33, with tightening of nut 31, the taper hole 312 of nut 31 touches wire clamp 33 helicla flute 332 of boring on barrel forces the helicla flute 332 of taper hole 312 to draw in, while helicla flute 332 draws in, elastic ring 32 is oppressed by taper hole 312, and is compressed in by cable in the through hole 321 of elastic ring 32, will import the cable seal of wire clamp 33 into;

Consult Fig. 1, Fig. 5, Fig. 6, finally, the second sealing ring 37 is loaded in the second seal groove 343 of insulative terminal base 34, the present invention is loaded on rack, be connected with rack by the installing hole 335 on wire clamp seat with screw, meanwhile, the second sealing ring 37 seals between insulative terminal base 34 and rack.

Consult Fig. 1 ~ Fig. 4, elastic ring 32 of the present invention is provided with the column of dome 322 for two ends, when elastic ring 32 is loaded in the cylinder of wire clamp 33, first the dome 322 at elastic ring 32 two ends touches with the barrel of wire clamp 33, when nut 3 is tightened, force the helicla flute 332 of taper hole 312 to draw in, while helicla flute 332 draws in, elastic ring 32 is oppressed by taper hole 312, and the dome 322 at elastic ring 32 two ends is more firm with the seal degree of wire clamp 33 cylindrical inner; Elastic ring 32 be axially arranged with several through hole 321, through hole 321 can insert cable 4, when the internal thread 311 of nut 31 engages with the external screw thread 331 of wire clamp 33, with tightening of nut 31, the helicla flute 332 of taper hole 312 is forced to draw in, cable is compressed in the through hole 321 of elastic ring 32, realizes the sealing between cable and elastic ring 32 through hole 321.

Claims

1. the water-proof connector of a connection cable, it is characterized in that it comprises nut (31), elastic ring (32), wire clamp (33), insulative terminal base (34), contact terminal (35), first sealing ring (36) and the second sealing ring (37) composition, the endoporus of described nut (31) is made up of taper hole (312) and straight hole two parts, straight hole section is provided with internal thread (311), elastic ring (32) is provided with the column of dome (322) for two ends, several through hole (321) is axially arranged with along column, wire clamp (33) is bonded by the wire clamp head of cylindrical shape and the wire clamp seat of rectangle, wherein, cylindric head is provided with cone cylinder, and cone barrel has several helicla flute (332), the outer wall of cylinder is provided with external screw thread (331), wire clamp seat is provided with installing hole (335), the square hole (333) through with cylinder is provided with in wire clamp seat, square hole (333) peripheral hardware first seal groove (334), insulative terminal base (34) establishes wire clamp mouth (341) and terminal base (342) in being, outer face is provided with the rectangular block of the second seal groove (343), described elastic ring (32) is located in the cylinder of wire clamp (33), nut (31) is located on the wire clamp head of wire clamp (33), and the internal thread (311) of nut (31) engages with the external screw thread (331) of wire clamp (33), the taper hole (312) of nut (31) touches the helicla flute (332) on wire clamp (33) cone barrel, contact terminal (35) is located in the terminal base (342) of insulative terminal base (34), the wire clamp mouth (341) of insulative terminal base (34) is sleeved on the wire clamp seat of wire clamp (33), first sealing ring (36) is located between first seal groove (334) of wire clamp (33) and the wire clamp mouth (341) of insulative terminal base (34), second sealing ring (37) is located in second seal groove (343) of insulative terminal base (34).