CN213212397U

CN213212397U - Steel pipe grounding jumper structure for expansion joint

Info

Publication number: CN213212397U
Application number: CN202022231145.6U
Authority: CN
Inventors: 赵炳松
Original assignee: Tianjin Anxin Tongda Mechanical And Electrical Equipment Installation Engineering Co ltd
Current assignee: Tianjin Anxin Tongda Mechanical And Electrical Equipment Installation Engineering Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-05-14
Anticipated expiration: 2030-10-09

Abstract

The utility model relates to a steel pipe ground connection jumper structure for expansion joint, it includes connecting box and two threading steel pipes, the connecting box includes take-up reel and telescopic machanism, be equipped with the steel pipe connecting wire in the take-up reel, the connecting box body is passed at steel pipe connecting wire both ends, connects on two threading steel pipes, telescopic machanism connects between threading steel pipe and connecting box body, the take-up reel includes pivot, wind spring and fixed station, the pivot is rotated and is connected at the inside center of connecting box, be equipped with the pillow block in the pivot, wind spring one end fixed connection is in the pivot, and other end fixed connection is on the fixed station, fixed station fixed connection is in the connecting box bottom surface, the steel pipe connecting wire is worn to establish in pivot and pillow block to the winding is on the lateral. The present application has the effect that the ground wire fixedly connected between two threading steel pipes can be rotatably received into the connection box, thereby reducing the damage caused by the ground wire and the influence of the external environment.

Description

Steel pipe grounding jumper structure for expansion joint

Technical Field

The application relates to the field of electrical apparatus wiring, especially relates to a steel pipe ground connection jumper structure for expansion joint.

Background

The ground jumper is a ground metal connector (such as a wire, round steel, flat copper and the like) between two metal bodies (such as a cabinet, a wire groove, a reinforcing steel bar, a steel pipe and the like) and is used for connecting a ground bus when the ground bus meets an obstacle (such as a building expansion joint, a settlement joint and the like) and needs to be crossed.

The grounding jumper structure in the related art comprises two steel pipes, an exposed wire box and two jumpers, wherein the steel pipes are arranged on the exposed wire box in a penetrating mode, one jumper is connected between the steel pipes and the exposed wire box, and the other jumper is connected between the two steel pipes, so that the purpose that the steel pipes are communicated and grounded is achieved.

In view of the above-mentioned related art, the inventors consider that there is a defect that the jumper is exposed outside the metal box body and is easily worn and stirred.

SUMMERY OF THE UTILITY MODEL

In order to improve the jumper wire and expose outside the metal box body, have easy wearing and tearing and mix people's problem, this application provides a steel pipe ground connection jumper structure for expansion joint.

The application provides a steel pipe ground connection jumper structure for expansion joint adopts following technical scheme:

the utility model provides a steel pipe ground connection jumper structure for expansion joint which characterized in that: including connecting box and two threading steel pipes, the connecting box includes take-up reel and telescopic machanism, be equipped with the steel pipe connecting wire in the take-up reel, the steel pipe connecting wire both ends are passed the connecting box body, connect on two threading steel pipes, telescopic machanism connects between threading steel pipe and connecting box body.

Through adopting above-mentioned technical scheme, the take-up reel can accomodate the rotatory connection box of the earth connection of fixed connection between two threading steel pipes in, reduce the earth connection and mix the damage that people and receive external environment influence to lead to.

Preferably, the take-up reel includes pivot, wind spring and fixed station, the pivot is rotated and is connected at the inside center of connecting box, the fixed station center is worn to establish by the pivot, be equipped with the pillow block in the pivot, wind spring one end fixed connection is in the pivot, and other end fixed connection is on the fixed station, fixed station fixed connection is in the connecting box bottom surface, the steel pipe connecting wire is worn to establish in pivot and pillow block to the winding is on the lateral wall of pillow block.

Through adopting above-mentioned technical scheme, realized that the pivot rotates to be connected in the connecting box, driven the earth connection and in the extension shrink of pillow block, reached the effect of extension shrink earth connection, the coil spring that sets up simultaneously in the fixed station can make the pivot reset, reduces the earth connection and spills outside the connecting box, can effectively prevent that the earth connection is impaired.

Preferably, the side face of the box body of the connecting box is fixedly connected with a box body connecting wire, and the other end of the box body connecting wire is fixedly connected to the threading steel pipe.

Through adopting above-mentioned technical scheme, realized the purpose of connecting through the earth connection between two sections steel pipes to can connect on the connecting box body, realize the effect of whole ground connection.

Preferably, the steel tube connecting wires and the box connecting wires are of a braided flat wire structure.

By adopting the technical scheme, the flat wire has the characteristics of bending resistance, easiness in storage, no kinking and the like, and the service life of the jumper wire is prolonged.

Preferably, telescopic machanism includes two nuts and two cushion collars, the cushion collar cover is established on the threading steel pipe, nut threaded connection is on the threading steel pipe, and one of them nut fixed connection is on the outer threading steel pipe of connecting box, and another nut fixed connection is on the threading steel pipe in the connecting box, cushion collar one end butt is on the connecting box body, and the other end butt is in the nut side.

Through adopting above-mentioned technical scheme, the fixed cushion collar of nut can play the cushioning effect between connecting box and threading steel pipe, prevents that the expansion joint deformation from leading to threading steel pipe and connecting box to warp.

Preferably, a wiring line card is clamped on the threading steel pipe, and the opening end of the wiring line card is fixedly connected with a steel pipe connecting line.

Through adopting above-mentioned technical scheme, the wiring ply-yarn drill can more firmly fix the steel pipe connecting wire, has the characteristics of easy to assemble dismantlement simultaneously.

Preferably, one end of the wiring line clamp opposite to the opening end is provided with a bending bulge.

Through adopting above-mentioned technical scheme, the arch of bending can make the wiring ply-yarn drill have certain expansion allowance, makes the wiring ply-yarn drill can adapt to the steel pipe of different diameters.

Preferably, a circle of convex ribs are arranged on the inner circle of the wiring line clamp.

Through adopting above-mentioned technical scheme, the bead can make the wiring ply-yarn drill fix at the steel pipe outer wall more firmly.

Preferably, the outer layer of the threading steel pipe is provided with a zinc coating.

By adopting the technical scheme, the zinc coating has the characteristics of friction resistance and corrosion resistance, can protect the wiring steel pipe and prolong the service life of the wiring steel pipe.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the winding roll can rotatably accommodate the grounding wire fixedly connected between the two threading steel pipes into the connecting box, so that the damage of the grounding wire caused by people mixing and external environment influence is reduced;

2. the fixed buffer sleeve of nut can play the cushioning effect between connecting box and threading steel pipe, prevents that the expansion joint deformation from leading to threading steel pipe and connecting box to warp.

Drawings

Fig. 1 is a schematic view of the overall structure of a steel pipe jumper grounding wire in the embodiment of the present application.

Fig. 2 is a schematic view of the internal structure of the steel pipe cross-over grounding wire in the embodiment of the present application.

Fig. 3 is a schematic cross-sectional structure diagram of a wire connector in an embodiment of the present application.

Description of reference numerals: 1. a connection box; 11. a take-up reel; 111. a rotating shaft; 112. a coil spring; 113. a fixed table; 114. connecting a steel pipe; 115. a pillow block; 12. a telescoping mechanism; 121. a nut; 122. a buffer sleeve; 13. a box body connecting line; 2. threading a steel pipe; 21. a wiring line card; 211. bending the bulge; 212. and (7) a rib.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a steel pipe ground connection jumper structure for expansion joint. Referring to fig. 1, steel pipe ground connection bridging structure includes cuboid metallic interconnect box 1 and zinc-plated threading steel pipe 2, the one end that threading steel pipe 2 wore to establish at connecting box 1 is equipped with the screw thread section, fixedly connected with take-up reel 11 and telescopic machanism 12 in the connecting box 1, telescopic machanism 12 includes two nuts 121 and two rubber material's hollow circular cylinder cushion collar 122, two nuts 121 threaded connection respectively are at the screw thread section both ends, the inside and outside both sides of connecting box 1, the cushion collar 122 cover is established in the screw thread section, wherein one end butt is on nut 121, the other end butt is on connecting box 1 box body.

Referring to fig. 2, the connection box 1 further includes a winding roll 11 and a box body connection line 13, the winding roll 11 includes a rotation shaft 111 rotatably connected to the box bottom and the box cover center of the connection box 1 and a fixing platform 113 fixedly connected to the box bottom, the rotation shaft 111 is arranged at the center of the fixing platform 113 in a penetrating manner, the fixing platform 113 is a hollow body with one closed end, a hole for the rotation shaft 111 to pass through is formed in the closed surface of the fixing platform 113, a coil spring 112 is fixedly connected to the middle of the fixing platform 113, the outer end of the coil spring 112 is fixedly connected to the inner side wall of the fixing platform 113, and the inner.

Fixedly connected with boss 115 in pivot 111, the boss 115 has bored the plug wire hole with pivot 111 side, steel pipe connecting wire 114 wears to establish in the plug wire hole and rotatory winding is at boss 115 lateral wall, it has bored the square hole on the lateral wall that connecting box 1 box body is connected with threading steel pipe 2, box body connecting wire 13 one end fixed connection is on the box body inner wall of non-connection threading steel pipe 2, the other end passes square hole fixed connection on the wiring ply-yarn drill 21 of threading steel pipe 2, steel pipe connecting wire 114 both ends pass square hole fixed connection on the wiring ply-yarn drill 21 of two threading steel pipes 2.

Referring to fig. 3, the wiring line card 21 is a metal line card with an opening on one side and a bending protrusion 211 on the other side, two pressing plates are arranged on the opening side of the wiring line card 21, the connecting line is clamped in the pressing plates through screws, and a circle of convex ribs 212 are arranged on the inner side surface of the line card, so that the clamping strength of the wiring line card 21 is higher.

The implementation principle of a steel pipe ground connection jumper structure for expansion joint of the embodiment of this application is: two threading steel pipes 2 are arranged on two parallel side surfaces of a connecting box 1 in a penetrating way, two nuts 121 are connected on the threading steel pipes 2 in a threaded way, two buffer sleeves 122 are sleeved between the two nuts 121 on the threading steel pipes 2, the two buffer sleeves 122 are clamped on two sides of the side surface of the connecting box 1, so that a certain deformation resistance is realized between the threading steel pipes 2 and the connecting box 1, a rotating shaft 111 is rotatably connected at the box bottom and the box cover center of the connecting box 1, a fixed platform 113 is fixedly connected at the box bottom of the connecting box 1, the rotating shaft 111 is arranged at the center of the fixed platform 113 in a penetrating way, a coil spring 112 is fixedly connected between the fixed platform 113 and the rotating shaft 111, the coil spring 112 can enable the rotating shaft 111 to return to an initial position under the condition of no force, a shaft platform 115 is arranged on the rotating shaft 111, a steel pipe connecting line 114 is arranged in the shaft platform, when the position of the threading steel pipes 2 is changed, the steel pipe connecting line 114 can be extended or shortened to fit the distance between the threading steel pipes 2, and the steel pipe connecting line 114 is prevented from leaking.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a steel pipe ground connection jumper structure for expansion joint which characterized in that: including connecting box (1) and two threading steel pipes (2), connecting box (1) includes take-up reel (11) and telescopic machanism (12), be equipped with steel pipe connecting wire (114) in take-up reel (11), steel pipe connecting wire (114) both ends are passed and are connected box (1) box body, connect on two threading steel pipes (2), telescopic machanism (12) are connected between threading steel pipe (2) and connecting box (1) box body.

2. The steel pipe ground jumper structure for expansion joints of claim 1, wherein: take-up reel (11) are including pivot (111), coil spring (112) and fixed station (113), pivot (111) rotate to be connected at the inside center of connecting box (1), fixed station (113) center is worn to establish in pivot (111), be equipped with pillow block (115) on pivot (111), coil spring (112) one end fixed connection is on pivot (111), and other end fixed connection is on fixed station (113), fixed station (113) fixed connection is in connecting box (1) bottom surface, steel pipe connecting wire (114) are worn to establish in pivot (111) and pillow block (115) to the winding is on the lateral wall of pillow block (115).

3. The steel pipe ground jumper structure for expansion joints of claim 1, wherein: connect box (1) box body side fixedly connected with box body connecting wire (13), box body connecting wire (13) other end fixed connection is on threading steel pipe (2).

4. The steel pipe ground jumper structure for expansion joints of claim 3, wherein: the steel tube connecting wire (114) and the box body connecting wire (13) are of a braided flat wire structure.

5. The steel pipe ground jumper structure for expansion joints of claim 1, wherein: telescopic machanism (12) include two nuts (121) and two cushion collar (122), cushion collar (122) cover is established on threading steel pipe (2), nut (121) threaded connection is on threading steel pipe (2), and one of them nut (121) fixed connection is on threading steel pipe (2) outside connecting box (1), and on threading steel pipe (2) in connecting box (1) of another nut (121) fixed connection, cushion collar (122) one end butt is on connecting box (1) box body, and the other end butt is in nut (121) side.

6. The steel pipe ground jumper structure for expansion joints of claim 4, wherein: the wire connecting device is characterized in that a wire connecting wire clip (21) is clamped on the threading steel pipe (2), and an opening end of the wire connecting wire clip (21) is fixedly connected with a steel pipe connecting wire (114).

7. The steel pipe ground jumper structure for expansion joints of claim 6, wherein: and a bending bulge (211) is arranged at one end of the wiring line card (21) opposite to the opening end.

8. The steel pipe ground jumper structure for expansion joints of claim 6, wherein: the inner circle of the wiring line card (21) is provided with a circle of convex ribs (212).

9. The steel pipe ground jumper structure for expansion joints of claim 1, wherein: the outer layer of the threading steel pipe (2) is provided with a zinc coating.