CN2211663Y - Multifunctional assembled expanding joint - Google Patents

Abstract

The utility model relates to a supplying and distributing electric apparatus for large current, particularly a multifunctional assembled expanding joint. The utility model is characterized in that a combination wire is composed of a conductive core body of an expansion pipe which is matched with the conductive core body of a ready bus bar and is provided with an expansion seam, a protective sleeve pipe which is matched with the outer diameter of the ready bus bar, and an insulation layer between the conductive core body of an expansion pipe and the protective sleeve pipe; during the construction time, the ready bus bar is inserted in the combination wire, and a tightening device is adopted to squeeze on the inserted part of the protective sleeve pipe to form tightening grooves to keep the simultaneously integral matching between the core bodies among the tightening grooves and outer pipes; the trial shows that the utility model can replace the existing expanding joints, and the utility model has the functions of length adjusting, bending head manufacture, volume changing, weatherproof function, etc.

Description

Multifunctional assembled expanding joint

Multifunction combined expansion joint.

The utility model relates to big electric current conveying and joins power supply device of air, particularly a kind of multifunction combined expansion joint.

Existing big electric current is carried and is joined in the power supply gas system, what the transmission line that causes for the transfer variations in temperature expanded with heat and contract with cold and brings elongates or shortens, adopt tabular superimposed mode, allowing fastening bolt be fixed on versatilely in the elongate slots of adapter plate realizes, this expansion joint because adopted the tabular superimposed fastening connection that adds, must form the position away from fastening bolt in actual use, superimposed gap increases, and contact resistance increases thereupon.Therefore, this transfer can not be oversize apart from the length with elongate slots, so the adjustable range of existing expansion joint is all about 5 centimetres, and can only be used in the error of the transmission line that regulating expands with heat and contract with cold causes, and along with big electric current is carried increasing day by day for match system, it is bigger to design a kind of spacing, the usefulness of the flexible transfer of circuit that can cause as expanding with heat and contract with cold, can satisfy needs such as length, turning, varying capacity, rain and snow in the circuit installation again simultaneously, the multifunction combined expansion joint that can also assemble construction at the scene easily is necessary.

The purpose of this utility model is to design a kind of expansion joint that has improved, make it and to cause the usefulness of route telescopic adjustment as expanding with heat and contract with cold, can satisfy needs such as length that circuit installs, turning, varying capacity, rain and snow again simultaneously, the multifunction combined expansion joint that can also assemble easily at the scene, construct.

The purpose of this utility model is achieved in that a kind of multifunction combined expansion joint, the utility model is characterised in that by at least 2 buses to be connect, at least 1 design when installing just the group party line of the binding groove of extrusion modling form, wherein, waiting to connect bus is made up of bus sheath bar-shaped or tubulose conductive core and its peripheral bus insulation layer and bus insulation layer outside; Group party line is made up of the assemble line protecting pipe that the external diameter with the bus protecting pipe outside the expansion tube conductive core that matches with external diameter bar-shaped or the tubulose conductive core and its peripheral assemble line insulating barrier and the assemble line insulating barrier matches.

The multifunction combined expansion joint that the utility model implements to obtain is tried out in big electric current and is shown below advantage in the match system: 1, can substitute existing expansion joint fully, play and regulate the length variations that circuit causes because of expanding with heat and contract with cold, and its spacing reaches about 20 centimetres above about 5 lis of existing expansion joint; 2, utilize general tool and common bus adjustable distance length in the installation at the scene.And can be made into elbow, so can be used in circuit length adjustment in the installation, the needs of turning, turning to widely; 3, the group party line of different tube diameters with wait to connect that bus is overlapping when being used in combination, can substitute existing varying capacity joint easily, play from main line the needs of current capacity variation minute branch line.When 4, the binding groove of extrusion modling is on the assemble line protecting pipe that the bus protecting pipe inserts assemble line protecting pipe position when site operation, the inwall of binding groove has played the sealing function between assemble line protecting pipe and the bus sheath, make the utility model not as existing expansion joint, need to increase in addition the facility that rain and snow is invaded, directly be exposed in the sleet and waterproof infiltration; 5, the expand design of joint close has been adopted connected mode of the present utility model to insert to expand and is closed connection, and compares tabular superimposed connection of existing expansion joint, has contact area big, and contact resistance is little, the advantage that conductor joint heating is few, reasonably reduced volume.6, as long as be made into the group party line of corresponding specification series according to the bus of different size series, general tool commonly used when adding construction just can be easily at the scene according to actual conditions assembling construction, and this standardization, seriation, generalization of joining electric power system for big electric current provides comparatively desirable base components.

Fig. 1 is for meeting schematic diagram of the present utility model.

In conjunction with the accompanying drawings implementation detail of the present utility model is described as follows: a kind of multifunction combined expansion joint, feature of the present utility model by at least 2 wait to connect 1, at least 1 design of bus when installing just the group party line 2 of the binding groove 2-4 of extrusion modling forms, wherein wait to connect bus 1 and form by the bus protecting pipe 1-3 outside bus insulation layer 1-2, the bus insulation layer 1-2 of bar-shaped or tubulose conductive core 1-1, bar-shaped or tubulose conductive core 1-1 periphery; Group party line 2 is made up of the assemble line protecting pipe 2-3 that the external diameter with bus protecting pipe 1-3 outside assemble line insulating barrier 2-2, the assemble line insulating barrier 2-2 of the expansion tube conductive core 2-1 that matches with external diameter bar-shaped or tubulose conductive core 1-1, expansion tube conductive core 2-1 periphery matches.Wait to connect bus 1 and can select single line conductor in the monomer heat radiation composite type bus for use, its bus protecting pipe 1-3 can select for use plastics, rubber or fiberglass to make through conventional process such as injection moulding or molding sulfurations.The implementation process of group party line 2 is the hollow pipes that adopt the metallic conduction material to make, open bloated joint close 2-1-1 shown in A view among Fig. 1 through mechanical drawing process, being made into expansion tube conductive core 2-1 is inserted in the assemble line insulating barrier 2-2 of the tubulose that insulating material makes then, as select plastics for use, the tubulose assemble line insulating barrier that the glass fibre steel is made, face puts the assemble line protecting pipe 2-3 that metal material is made outside assemble line insulating barrier 2-2 again, utilize draw plant equipment that assemble line protecting pipe 2-3 is imposed suitable draw pressure then, triplicity becomes whole with assemble line protecting pipe 2-3 with assemble line insulating barrier 2-2 to make expansion tube conductive core 2-1.The group party line 1 that the external diameter this and external diameter of waiting to connect the bar-shaped of bus 2 or tubulose conductive core 1-1 and bus protecting pipe 1-3 matches can be made corresponding different size series, only need select and wait to connect the group party line 2 of bus 1 corresponding specification when constructing at the scene for use, the link of waiting to connect bus 1 is peelled off the bus protecting pipe 1-3 and the bus insulation layer 1-2 of certain-length, and within the expansion tube conductive core 2-1 of the bar-shaped or tubulose conductive core 1-1 insertion group party line 2 that will expose, bus protecting pipe 1-3 inserts within the assemble line protecting pipe 2-3 simultaneously, become binding groove 1-4 with the extrusion modling after corresponding site makes this position plastic deformation to the assemble line protecting pipe 2-3 application of force of organizing party line of banding plant equipment then, formation is to the lasting pressure between expansion tube conductive core 2-1 and bar-shaped or the tubulose conductive core 1-1, making has good insertion to expand between the two to close cooperation, same technology makes to connect between assemble line sheath 2-3 and the bus protecting pipe 1-3 becomes integral body, and at this moment the inwall of binding groove 1-4 has played the sealing function between assemble line protecting pipe 2-3 and the bus protecting pipe 1-3.

Claims (3)

1, a kind of multifunction combined expansion joint, of the present utility model be characterised in that by at least 2 wait to connect 1, at least 1 design of bus when installing just the group party line 2 of the binding groove 2-4 of extrusion modling form,

--wait to connect bus 1 and form by the bus protecting pipe 1-3 of bus insulation layer 1-2, the bus insulation layer 1-2 outside of bar-shaped or tubulose conductive core 1-1, bar-shaped or tubulose conductive core 1-1 periphery;

--group party line 2 is made up of the assemble line protecting pipe 2-3 that matches with bus protecting pipe 1-3 external diameter of assemble line insulating barrier 2-2, the assemble line insulating barrier 2-2 outside of the expansion tube conductive core 2-1 that matches with external diameter bar-shaped or tubulose conductive core 1-1, expansion tube conductive core 2-1 periphery.

2, a kind of multifunction combined expansion joint by claim 1 regulation, the binding groove 2-4 of ability extrusion modling is positioned on the assemble line protecting pipe 2-3 at bar-shaped or tubulose conductive core 1-1 insertion expansion tube conductive core 2-1 position when it is characterized in that described the installation, is positioned in addition on the assemble line protecting pipe 2-3 at bus protecting pipe 1-3 insertion assemble line protecting pipe 2-3 position.

3, a kind of multifunction combined expansion joint by claim 1 regulation is characterized in that described expansion tube conductive core 2-1 goes up design bloated joint close 2-1-1 is arranged.

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