CN215580181U

CN215580181U - Cable bridge grounding device

Info

Publication number: CN215580181U
Application number: CN202121699421.XU
Authority: CN
Inventors: 朱新宏
Original assignee: Xi'an Xingfei Electric Technology Co ltd
Current assignee: Xi'an Xingfei Electric Technology Co ltd
Priority date: 2021-07-24
Filing date: 2021-07-24
Publication date: 2022-01-18
Anticipated expiration: 2031-07-24

Abstract

The utility model relates to a cable testing bridge earthing device relates to the field of electrical engineering construction technology, and it includes a plurality of monomer crane span structures, a plurality of mounting and a plurality of connecting line, adjacent two the monomer crane span structure passes through mounting fixed connection, two adjacent monomer crane span structures pass through connecting line electric connection. In the installation, through mounting fixed connection between the adjacent monomer crane span structure, then will make through the line of connection communicate between two adjacent monomer crane span structures, then will connect the line of connection and earth switch-on, can make the crane span structure wholly keep reliable ground connection, connect the monomer crane span structure through the UNICOM, can not cause the damage to crane span structure self to be convenient for change the maintenance to the line of connection. This application has the life's that can prolong cable testing bridge effect.

Description

Cable bridge grounding device

Technical Field

The application relates to the field of electrical engineering construction technology, in particular to a cable bridge grounding device.

Background

According to the regulation in the national standard 'construction quality acceptance standard for electrical and architectural engineering': when the total length of the ladder frame, the tray and the groove box is not more than 30m, the total length is not less than 2 parts which are reliably connected with the protective conductor; when the total length is more than 30m, a connection point is added every 20 m-30 m, and the starting end and the terminal end are both reliably grounded.

In the related art, the cable bridge is connected into an integral bridge by a plurality of single bridges according to requirements. Because the surface of the bridge frame body is coated with the organic coating with poor conductivity, in order to ensure the reliable grounding of the whole system, the bridge frames are usually connected by welding through electric conductors after the bridge frames are connected.

In view of the above-mentioned related technologies, the inventor believes that the connection between the individual bridges by means of the conductive welding may cause the problem of perforation or melting deformation of the cable bridge, which is not favorable for the cable bridge to maintain a long service life.

SUMMERY OF THE UTILITY MODEL

In order to prolong the service life of the cable bridge, the application provides a cable bridge grounding device.

The application provides a cable testing bridge earthing device adopts following technical scheme:

the utility model provides a cable testing bridge earthing device, includes a plurality of monomer testing bridges, a plurality of mounting and a plurality of line of connecting, adjacent two the monomer testing bridge passes through mounting fixed connection, adjacent two monomer testing bridges pass through the line of connecting electric connection.

Through adopting above-mentioned technical scheme, through mounting fixed connection between the adjacent monomer crane span structure, then will make the intercommunication between two adjacent monomer crane span structures through the connecting line, then will connecting line and earth switch-on, can make the crane span structure wholly keep reliable ground connection, connect the monomer crane span structure through the UNICOM, can not cause the damage to crane span structure self to be convenient for change the maintenance to the connecting line, effectively prolonged the life of cable crane span structure.

Optionally, the mounting includes connecting plate, bolt and nut, a plurality of mounting holes have been seted up to monomer crane span structure tip, seted up on the connecting plate with the connecting hole that the mounting hole corresponds, the bolt passes in proper order the connecting hole with the mounting hole with nut threaded connection, the connecting line includes first wire and solid fixed ring, gu fixed ring is equipped with two, two gu fixed ring respectively with first wire both ends fixed connection, first wire both ends are passed through gu fixed ring overlaps respectively on the bolt of two adjacent monomer crane spans.

Through adopting above-mentioned technical scheme, when installing the cable testing bridge, align two monomer crane span structures and mounting hole respectively with the connecting hole on the connecting plate, then pass the connecting hole of connecting plate and the mounting hole of monomer crane span structure with the bolt in proper order, and with nut threaded connection, can install two monomer crane span structures, after the crane span structure is installed, establish the solid fixed ring at first wire both ends respectively on the bolt of two adjacent monomer crane span structures, then the nut that rotates will gu fixed ring chucking, after the crane span structure is installed, again with earth connection and the intercommunication line switch-on of ground switch-on can, above-mentioned structure is convenient for install the monomer crane span structure, and be convenient for install and ground connection the intercommunication line, the efficiency of construction of installation cable crane span structure has effectively been improved.

Optionally, a fastener is arranged on the bolt, the fastener comprises a gasket and a spring pad, and the gasket and the spring pad are all sleeved on the bolt.

Through adopting above-mentioned technical scheme, set up gasket and spring pad and can prevent that the nut is not hard up, effectively improved the connection reliability between the monomer crane span structure.

Optionally, an insulating pad is arranged at a joint of two adjacent single bridges.

Through adopting above-mentioned technical scheme, set up the insulating pad and can make each monomer crane span structure keep the insulating state in the installation to reduce the problem that the cable electric leakage hit the people wounded, improved the security in the monomer crane span structure installation.

Optionally, the connecting plate is made of an insulating material.

Through adopting above-mentioned technical scheme, set up the connecting plate into insulating material, can make each monomer crane span structure keep insulating state in the cabling process, further improved the security in the monomer crane span structure work progress.

Optionally, a clamping groove is formed in the end portion of each single bridge and is fixedly connected with a clamping block, two adjacent single bridges are matched and spliced with the clamping groove through the clamping block, and the fixing piece is used for fixing the single bridges.

Through adopting above-mentioned technical scheme, when installing the cable testing bridge, the mounting means of two arbitrary monomer testing bridges is: a monomer crane span structure passes through the fixture block and pegs graft in the draw-in groove of another monomer crane span structure, then connects two monomer crane span structures with the mounting, then will make through the connecting line and communicate between two adjacent monomer crane span structures, then will connect the connecting line and put through with the ground, can make the crane span structure wholly keep reliable ground connection, connect the monomer crane span structure through the UNICOM line, can not cause the damage to crane span structure self, and be convenient for change the maintenance to the connecting line, effectively prolonged the life of cable crane span structure.

Optionally, the mounting includes connecting rod, stopper, dog and spring, run through on the cell wall of draw-in groove and seted up the locating hole, connecting rod sliding connection in the locating hole, the stopper with the connecting rod is close to the one end fixed connection of fixture block, the dog with the connecting rod is kept away from the one end fixed connection of stopper, the spring housing is located on the connecting rod, the spring makes the stopper has the orientation and is close to the trend that the fixture block removed, set up the confession on the fixture block the spacing groove that the stopper was pegged graft, the line of connection includes second wire and snap ring, the snap ring is equipped with two, two the snap ring respectively with second wire both ends fixed connection, the second wire both ends are passed through the snap ring is passed through on the connecting rod of two adjacent monomer crane span structures of joint respectively.

Through adopting above-mentioned technical scheme, when installing the cable testing bridge, operating personnel stimulates the dog to drive the stopper and moves towards the direction of keeping away from the crane span structure monomer, the spring is compressed this moment, then peg graft the fixture block of arbitrary monomer crane span structure in the draw-in groove of another monomer crane span structure, then loosen the dog, the spring resets and drives the stopper joint and accomplish the installation of two monomer crane span structures in the spacing inslot of fixture block promptly, after the crane span structure is installed, with second wire both ends and snap ring joint respectively on the connecting rod of two adjacent monomer crane span structures, the crane span structure is installed the back, again with the earth connection of ground switch-on with the ground with the earth switch-on can, the structure is convenient for install the monomer crane span structure, and be convenient for install and ground connection the intercommunication line, the efficiency of construction of installation cable crane span structure has effectively been improved.

Optionally, an insulating layer is coated on the fixture block.

By adopting the technical scheme, the insulating layer can keep each single bridge in an insulating state in the process of laying cables, and the safety in the construction process of the single bridge is improved.

Optionally, the stop block is fixedly connected with a limiting column, and the clamping ring is provided with a limiting hole for the limiting column to be inserted.

Through adopting above-mentioned technical scheme, during the installation connecting wire, operating personnel stimulates the dog for the dog moves towards the direction of keeping away from the monomer crane span structure, then with the snap ring joint on the connecting rod, then operating personnel loosens the dog, and the spring resets and drives the dog and remove towards the direction that is close to the monomer crane span structure, and it is downthehole in the spacing of snap ring to drive the fibre to live to peg graft when the dog removes, thereby prevents that the snap ring from droing from the connecting rod, has effectively improved the connection reliability of connecting wire and monomer crane span structure.

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

1. the two adjacent single bridges are fixedly connected through the fixing piece, then the two adjacent single bridges are communicated through the communication line, and the communication line is communicated with the ground after the bridges are installed, so that the bridges can be reliably grounded integrally, welding is not needed in the installation process, the bridges are not damaged, the communication line is convenient to replace and overhaul, and the service life of the cable bridge is effectively prolonged;

2. carry out fixed connection to monomer crane span structure through connecting plate, bolt and nut, then locate the bolt of two adjacent crane spans with first wire through solid fixed ring cover, above-mentioned structure is convenient for install monomer crane span structure to be convenient for install and ground connection the intercommunication line, effectively improved the efficiency of construction of installation cable crane span structure.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

fig. 2 is a schematic view of a partial explosion structure of embodiment 1 of the present application;

fig. 3 is a schematic view of a partial explosion structure of embodiment 1 of the present application;

FIG. 4 is a schematic view of the overall structure of embodiment 2 of the present application;

FIG. 5 is a partial sectional view of embodiment 2 of the present application;

fig. 6 is a schematic view of a partial explosion structure of embodiment 2 of the present application.

Reference numerals: 1. a single bridge frame; 11. mounting holes; 12. an insulating pad; 13. a card slot; 131. positioning holes; 132. an accommodation hole; 14. a clamping block; 141. a limiting groove; 2. a fixing member; 21. a connecting plate; 211. connecting holes; 22. a bolt; 23. a nut; 24. a fastener; 241. a gasket; 242. a spring pad; 25. a connecting rod; 251. a limiting ring; 26. a limiting block; 27. a stopper; 271. a limiting column; 28. a spring; 3. a connecting line; 31. a first conductive line; 32. a fixing ring; 33. a second conductive line; 34. a snap ring; 341. a U-shaped groove; 342. and a limiting hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a cable bridge grounding device.

Example 1

Referring to fig. 1, a cable tray grounding device includes a plurality of individual trays 1, a plurality of fixing members 2, and a plurality of connection lines 3.

Referring to fig. 1, 2 and 3, the single bridge 1 is a groove-type cable bridge, and the ends of two adjacent single bridges 1 are connected by two fixing pieces 2; the mounting 2 includes connecting plate 21, bolt 22 and nut 23, a plurality of mounting holes 11 have been seted up respectively to 1 tip of monomer crane span structure in the both sides wall that is parallel to each other, four in this embodiment, four mounting holes 11 enclose into the square, connecting plate 21 is polyethylene resin insulating material, connecting plate 21 is located the recess of 1 tip of monomer crane span structure, eight connecting holes 211 have been seted up on the connecting plate 21, connecting hole 211 of connecting plate 21 corresponds with two adjacent mounting holes 11 of monomer crane span structure 1, bolt 22 and nut 23 are equipped with eight, each bolt 22 passes connecting hole 211 and mounting hole 11 in proper order and with a nut 23 threaded connection, the junction joint of two adjacent monomer crane span structures 1 has insulating pad 12, insulating pad 12 is the rubber pad.

Referring to fig. 2 and 3, the connecting line 3 includes a first wire 31 and two fixing rings 32, the first wire 31 is a copper wire, the fixing rings 32 are circular copper sheets, the inner diameter of the fixing rings 32 is larger than the diameter of the bolt 22, the fixing rings 32 are two, the two fixing rings 32 are welded to two ends of the first wire 31 respectively, two ends of the first wire 31 are sleeved on the bolts 22 of the two adjacent single bridges 1 through the fixing rings 32 respectively, and the nuts 23 compress the fixing rings 32.

Referring to fig. 2 and 3, the bolt 22 is provided with a fastener 24, the fastener 24 includes a washer 241 and a spring washer 242, the washer 241 and the spring washer 242 are sequentially sleeved on the bolt 22 in a direction away from the single bridge 1, the fixing ring 32 is located between the washer 241 and the side wall of the single bridge 1, and in the installation process, the nut 23 sequentially presses the spring washer 242, the washer 241 and the fixing ring 32.

The implementation principle of the embodiment 1 is as follows: when the cable bridge is installed, the single bridges 1 with the required number for construction are selected, then the plurality of single bridges 1 are connected end to end, then the connecting holes 211 of the connecting plates 21 are aligned with the mounting holes 11 of the two adjacent single bridges 1, then the bolts 22 sequentially penetrate through the connecting holes 211 and the mounting holes 11 and are in threaded connection with the nuts 23, and then the single bridges 1 can be installed.

After the single bridge frame 1 is installed, one nut 23 at the end part of each of two adjacent single bridge frames 1 is screwed off, then the fixing rings 32 at the two ends of the first lead 31 are respectively sleeved on the bolts 22 with the nuts 23 screwed off, then the nuts 23 are screwed, the spring pad 242, the gasket 241 and the fixing rings 32 are sequentially pressed, and after the cable is laid, the connecting wire 3 is connected with the grounding wire, so that the stable grounding of the cable bridge frame can be realized.

Example 2

Referring to fig. 1 and 2, the single bridge 1 is a groove type cable bridge, two clamping grooves 13 are formed in the end portion of the single bridge 1, two clamping blocks 14 are welded to the end portion of the single bridge, insulating layers are coated on the clamping blocks 14, the end portions of two adjacent single bridges 1 are connected in the clamping grooves 13 in an inserting mode through the clamping blocks 14, the end portions of two adjacent single bridges 1 are connected through two fixing pieces 2, and the two fixing pieces 2 are located at the clamping blocks 14 at the end portions of two adjacent single bridges 1 respectively.

Referring to fig. 1 and 2, the fixing member 2 includes a connecting rod 25, a limiting block 26, a stopper 27 and a spring 28, a positioning hole 131 is formed in a groove wall of the clamping groove 13 in a penetrating manner, the connecting rod 25 is slidably connected in the positioning hole 131, the limiting block 26 and the connecting rod 25 are welded at one end close to the clamping block 14, one end of the connecting rod 25 far away from the limiting block 26 extends out of the positioning hole 131, the stopper 27 and the connecting rod 25 are welded at one end extending out of the positioning hole 131, a receiving hole 132 is formed in a peripheral wall of the positioning hole 131, a limiting ring 251 is coaxially welded on the connecting rod 25, the outer diameter of the limiting ring 251 is larger than that of the positioning hole 131, the limiting ring 251 is located in the receiving hole 132 at one end close to the limiting block 26, the spring 28 is located in the receiving hole 132, the spring 28 is coaxially sleeved on the connecting rod 25, one end of the spring 28 is abutted against an inner wall of the positioning hole 131, and the other end is abutted against the limiting ring 251.

Referring to fig. 1 and 2, the spring 28 makes the stopper 26 have a tendency of moving toward the block 14, the block 14 is provided with a stopper groove 141, when the spring 28 is in a normal state, the stopper ring 251 abuts against the end wall of the positioning hole 131 far from the baffle, and at this time, the stopper 26 at the end of the connecting rod 25 abuts against the stopper groove 141.

Referring to fig. 2 and 3, the connecting wire 3 includes a second wire 33 and a clamping ring 34, the second wire 33 is a copper wire, the clamping ring 34 is a circular copper sheet provided with a U-shaped groove 341, the clamping ring 34 is provided with two parts, the two clamping rings 34 are welded with two ends of the second wire 33 respectively, two ends of the first wire 31 are respectively connected to the connecting rods 25 of the two adjacent single bridges 1 through the clamping rings 34, two limit holes 342 are formed in the clamping ring 34 in a penetrating manner, one side of the stop block 27 close to the single bridges 1 is welded with two limit posts 271, and the limit posts 271 are inserted into the limit holes 342.

The implementation principle of the embodiment 2 is as follows: when installing the cable testing bridge, select the monomer crane span structure 1 of the required quantity of construction earlier, then align adjacent two monomer crane span structures 1 tip, then stimulate dog 27, dog 27 drives stopper 26 and moves towards the free direction of keeping away from the crane span structure, spring 28 is compressed this moment, then insert draw-in groove 13 with fixture block 14 in, then loosen dog 27, spring 28 resets and drives stopper 26 joint in the spacing groove 141 of fixture block 14, can accomplish the installation of adjacent two monomer crane span structures 1, then install a plurality of monomer crane span structures 1 in proper order can.

After the monomer crane span structure 1 is installed, stimulate dog 27 with two adjacent monomer crane span structures 1 tip respectively, then the snap ring 34 with first wire 31 both ends respectively the joint on connecting rod 25, and make spacing hole 342 on spacing post 271 and the snap ring 34 align, then loosen dog 27, spring 28 resets and drives dog 27 and remove towards the direction that is close to monomer crane span structure 1, thereby drive spacing post 271 and peg graft in spacing hole 342, in order to avoid snap ring 34 to drop from connecting rod 25, the stable ground connection of cable crane span structure can be realized with the earth connection switch-on of connecting wire 3 after the cable laying.

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 cable testing bridge earthing device which characterized in that: the cable bridge comprises a plurality of single bridge frames (1), a plurality of fixing pieces (2) and a plurality of communication lines (3), wherein the adjacent two single bridge frames (1) are fixedly connected through the fixing pieces (2), and the adjacent two single bridge frames (1) are electrically connected through the communication lines (3).

2. The cable tray grounding assembly of claim 1, wherein: fixing part (2) include connecting plate (21), bolt (22) and nut (23), a plurality of mounting holes (11) have been seted up to monomer crane span structure (1) tip, seted up on connecting plate (21) with connecting hole (211) that mounting hole (11) correspond, bolt (22) pass in proper order connecting hole (211) with mounting hole (11) with nut (23) threaded connection, connecting wire (3) include first wire (31) and solid fixed ring (32), gu fixed ring (32) are equipped with two, two gu fixed ring (32) respectively with first wire (31) both ends fixed connection, first wire (31) both ends are passed through gu fixed ring (32) overlaps respectively on bolt (22) of two adjacent monomer crane span structures (1).

3. The cable tray grounding assembly of claim 2, wherein: be equipped with fastener (24) on bolt (22), fastener (24) include gasket (241) and spring pad (242), gasket (241) with spring pad (242) all overlap and are located on bolt (22).

4. The cable tray grounding assembly of claim 1, wherein: and an insulating pad (12) is arranged at the joint of two adjacent single bridges (1).

5. The cable tray grounding assembly of claim 2, wherein: the connecting plate (21) is made of insulating materials.

6. The cable tray grounding assembly of claim 1, wherein: the end part of each single bridge frame (1) is provided with a clamping groove (13) and a clamping block (14), two adjacent single bridge frames (1) are matched and spliced through the clamping blocks (14) and the clamping grooves (13), and the fixing piece (2) is used for fixing the single bridge frames (1).

7. The cable tray grounding assembly of claim 6, wherein: the fixing piece (2) comprises a connecting rod (25), a limiting block (26), a stop block (27) and a spring (28), a positioning hole (131) is formed in the groove wall of the clamping groove (13) in a penetrating mode, the connecting rod (25) is connected in the positioning hole (131) in a sliding mode, the limiting block (26) and the connecting rod (25) are close to one end of the clamping block (14) in a fixed connection mode, the stop block (27) and one end, far away from the limiting block (26), of the connecting rod (25) are fixedly connected, the spring (28) is sleeved on the connecting rod (25), the limiting block (26) is enabled to have a trend of moving towards the direction close to the clamping block (14) through the spring (28), a limiting groove (141) for the limiting block (26) to be connected in an inserting mode is formed in the clamping block (14), and the connecting line (3) comprises a second lead (33) and a clamping ring (34), snap ring (34) are equipped with two, two snap ring (34) respectively with second wire (33) both ends fixed connection, second wire (33) both ends are passed through snap ring (34) joint respectively on connecting rod (25) of two adjacent monomer crane span structures (1).

8. The cable tray grounding assembly of claim 6, wherein: the fixture block (14) is coated with an insulating layer.

9. The cable tray grounding assembly of claim 7, wherein: the stop block (27) is fixedly connected with a limiting column (271), and the clamping ring (34) is provided with a limiting hole (342) for the insertion of the limiting column (271).