CN2078048U - Intermediate joint of cable core wire - Google Patents

Abstract

The utility model relates to a novel intermediate joint of a cable core wire, which is not easy to generate heat, can be used repeatedly for a long term, and is safer in action. The utility model is characterized in that the utility model is provided with a joint body, and both ends of the joint body are respectively provided with a purpose-made nut; cable cores penetrating both of the two ends of the joint body can be connected after locked tightly while the purpose-made nuts on both of the two ends are respectively screwed in. The intermediate joint can be made into serial products. The utility model does not need the methods that the joint is welded, compressed and connected, or is propped tightly from the lateral face by using a plurality of screws. Consequently, the construction is easy, and the utility model can not be prohibited and limited in the construction occasions because of the safety reason of touching fire.

Description

Intermediate joint of cable core wire

The utility model relates to a kind of novel cable core transition joint, and it is applicable to the occasion between the stube cable heart yearn.

At present, the joint that connects between cable core, general adopt " welding ", the end that is about to two cable cores is welded in the joint short tube.The employing that also has " crimping method " is about to the end of two heart yearns, be inserted in the aluminium hydraulic pressed connecting pipe relatively after, aluminium hydraulic pressed connecting pipe inwardly is deformed into a little or the pit of multiple spot with mechanical means; Or be pressed into the chase of wire or ring-type, come affixed thereby make it be close to the cable core that is inserted to inner bulge part.But these several joints also exist following deficiency: the one, the former not only complex process, be difficult for welding but also cost height, and owing to the security reason that whether can get angry is subjected to welding forbidding of occasion or limits.The 2nd, the latter is because after complete outer power makes its joint Internal Hole Deformation, be adjacent to its heart yearn and affixed, the contact-making surface that therefore may have only a point or a plurality of point or one or more ringed line, thereby can closely not cause contact resistance big with crimping because of contact-making surface is little, so after date when using a section, when carrying heavy current in particularly heavy in section cable, often because of the affixed lax or disengaging of heating.So not only have a strong impact on the safety in the electrical operation, and then power supply is produced threat, and be that energy consumption is big.In such cases, patrol rotation once electric personnel and check out, can only take to cut off two end cables with the joint junction, and more renew joint and solve, so the joint waste is big, cost is high.

The purpose of this utility model is to provide a kind of more difficult heating, and the safer reliable novel cable heart yearn transition joint that can repeat and use and be in operation for a long time.

Task of the present utility model is finished in the following way, and it has a fittings body.The two ends of fittings body, the front is bullet, and the back is cylinder, and interior respectively have a circular blind hole.The bullet at two ends all respectively mills symmetry or four uniform or many axial notch; The discontinuous ring tooth of three roads or multiple tracks is all respectively arranged on the circular blind hole at two ends, thereby make the bullet at two ends respectively constitute four slit bamboo or chopped woods or the meniscate taper ring plate of many slit bamboo or chopped woods.On the cylinder outer surface at two ends screw thread is arranged respectively, so that respectively with after the special nut of a lengthening is inserted in corresponding bullet connect it.Lengthening on the special nut at two ends partly in, taper hole is all respectively arranged, each matches its tapering with the tapering of corresponding crescent taper ring plate.Special nut lengthening external diameter partly all can respectively be made taper or circle.Like this after the cable core that need to connect penetrates in the crescent cone sheets at fittings body two ends respectively,, thereby just the special nut that is enclosed within on the fittings body two ends can be tightened with spanner respectively because the fittings body middle part is square or rectangle or hexagon.Along with special nut constantly is screwed into respectively separately, can makes four slit bamboo or chopped woods at fittings body two ends or many slit bamboo or chopped woods crescent taper ring plate obtain constantly locking separately, thereby have enough coupling mechanism forces that two cable cores are coupled together securely by this transition joint.This kind structure is because big and fully with the contact-making surface of cable core, so the little and difficult heating of contact resistance, even adstante febre only need further be tightened this special nut to get final product, need not to cut off with the heart yearn of two end cables of fittings body junction and more renews joint.Thereby not only prolonged the operating period, and can repeat and long-term the use, and because structural characteristics can be regulated within the specific limits, so the utility model can be made into series of products, its product specification significantly reduces than prior art.In order to adapt to the requirement on electric, its material adopts copper or aluminum all can in addition.Consider easy on the mechanical processing technique in addition, when mechanical strength that does not influence the utility model middle part and sectional area thereof, the blind hole at fittings body two ends can be changed a social system and is through hole.

The utility model has the advantages that to need not welding, crimping, thereby easy construction can not be subjected to forbidding of occasion because of the security reason of getting angry and limits.And because the contact-making surface of junction is big.Cause the little and more difficult heating of contact resistance, safety and reliability is in operation.Can repeat simultaneously and long-term the use, thereby comparatively speaking, its cost is also low.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is vertical half sectional view of the present utility model.

With reference to Fig. 1, when cable core that need connect from after B is in the left circular blind hole (3) that penetrates fittings body (4), block the partly middle of fittings body (4) with spanner--on the square body (5), use another spanner that the special nut (2) of the left end on the fittings body (4) constantly is screwed on the left screw thread of fittings body (4) again, because the lengthening of special nut (2) partly has taper hole, thereby make the left crescent taper ring plate (1) of fittings body (4) also is constantly to lock thereupon, is therefore coupled together securely to the left end of cable core that penetrates and fittings body (4) by B.(6) be the special nut of the right-hand member on the fittings body (4), from C to the right-hand member connection method of another root cable core that penetrates and fittings body (4) with above-mentioned.

Claims (4)

1, the transition joint between a kind of cable core, it is that a joint has through hole or two ends respectively are the short tube of circular blind hole, of the present utility model being characterised in that:

A, it has a fittings body, the two ends of fittings body, the front all respectively is a bullet, the back all respectively is a cylinder, a circular blind hole is all respectively arranged in the body at fittings body two ends, the bullet at two ends all respectively mills symmetry or four uniform or many axial notch, and screw thread is all respectively arranged on the cylindrical outer surface at two ends

B, with fittings body on the two terminal circle cartridge outer surface on the special nut that a lengthening is all respectively arranged that is complementary of screw thread, the lengthening of this special nut partly all respectively has taper hole, its tapering all each with fittings body on the bullet at two ends match.

2, transition joint according to claim 1 is characterized in that on the circular blind hole at two ends the discontinuous ring tooth of three roads or multiple tracks being arranged respectively all.

3, transition joint according to claim 1, but it is characterized in that its material copper or aluminum.

4, transition joint according to claim 1 is characterized in that the circular blind hole at fittings body two ends, also can change a social system to be through hole.