CN109921210B

CN109921210B - Outdoor grounding device

Info

Publication number: CN109921210B
Application number: CN201910193746.1A
Authority: CN
Inventors: 刘波; 游小华; 郭明杰; 曾小平; 曾尚德; 李丽; 刘毅; 刘彦欣
Original assignee: FUJIAN ELECTRIC VOCATIONAL AND TECHNICAL COLLEGE; Quanzhou Electric Power Technology Institute of State Grid Fujian Electric Power Co Ltd
Current assignee: FUJIAN ELECTRIC VOCATIONAL AND TECHNICAL COLLEGE; Quanzhou Electric Power Technology Institute of State Grid Fujian Electric Power Co Ltd
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2020-11-27
Anticipated expiration: 2039-03-14
Also published as: CN109921210A

Abstract

The invention provides an outdoor grounding device which comprises a base, a shell, a winding drum, a clamping ring, a spring, a grounding copper wire and a rotating shaft, wherein the base is detachably arranged on a cross arm of a tower, the shell is arranged on the base through a fixing mechanism, the rotating shaft is positioned in the shell, two ends of the rotating shaft are respectively arranged on the shell, the winding drum is rotatably arranged on the rotating shaft, the periphery of the winding drum is provided with a first groove for the grounding copper wire to be wound, the spring is arranged in the winding drum to form a spring ring concentric with the winding drum, two ends of the spring are respectively arranged on the winding drum and the rotating shaft, the clamping ring is arranged on the inner side of the winding drum to prevent the spring from falling and rotating along with the winding drum, and a wire passing hole. The invention can reduce the number of tools carried in operation, simplify operation procedures, improve working efficiency, reduce operation difficulty and operation risk, and protect a grounding wire.

Description

Outdoor grounding device

Technical Field

The invention relates to an outdoor grounding device.

Background

The transmission lines are mostly located in remote mountainous areas and mountain highways, and a large amount of working tools and materials need to be carried in power failure maintenance operation. The arrival of the worker at the site is often exhausted. When the device works on a line, electricity testing and hanging ground needs to be carried out firstly, and the conventional electricity testing and hanging ground has the following defects: a plurality of groups of grounding wires need to be carried, and the device is very heavy; each time of grounding hanging needs an operator to lift the grounding wire on the cross arm of the tower, the grounding wire needs to be removed and bound after the operation is finished and then is transmitted back to the ground, and the removing process is unchanged, so that the operation procedure is complicated, the workload is large, and the working efficiency is reduced; after the grounding is hung, the grounding copper wire is in a loose and drooping state and is easy to swing, so that the safety distance between the grounding copper wire and a lower part or a peripheral adjacent charged body is reduced, and the operation risk is increased; if the grounding wire is carried and lifted for a long time, the grounding wire is easy to wear, so that the phenomena of electric leakage and the like are caused during grounding, and unsafe factors exist.

Disclosure of Invention

The invention aims to provide an outdoor grounding device aiming at the defects of the prior art, which reduces the number of tools carried in operation, simplifies operation procedures, improves working efficiency, reduces operation difficulty and operation risk and can protect a grounding wire.

The invention is realized by the following technical scheme:

the utility model provides an outdoor earthing device, the on-line screen storage device comprises a base, a housing, the bobbin, the snap ring, a spring, ground connection copper line and axis of rotation, base detachably sets up on the shaft tower cross arm, the casing passes through fixed establishment and sets up on the base, the axis of rotation is located the casing and both ends set up respectively on the casing, the bobbin rotationally sets up in the axis of rotation, the bobbin periphery has the first recess that supplies ground connection copper line around establishing, the spring sets up in order to form and the endocentric spring coil of bobbin in the bobbin, the spring both ends set up respectively in bobbin and axis of rotation, the snap ring sets up and drops and rotate along with the bobbin in order to stop the spring in the bobbin inboard, be provided with the line hole of crossing that supplies.

Further, the bobbin comprises a cylinder, a circular plate arranged in the cylinder and used for sealing the cylinder, a hollow shaft arranged on the circular plate and concentric with the cylinder, a buckle arranged on the inner side of the cylinder and a placing groove arranged on the inner side of the cylinder, wherein a first through hole communicated with the cylinder is formed in the circular plate, the two ends of the cylinder are provided with first bending parts which are bent outwards in the radial direction of the cylinder to form the first groove, the spring is wound around the hollow shaft serving as an axis and one end of the spring is clamped on the buckle, the placing groove and the end part of the hollow shaft are located on the same plane, the buckle is placed in the placing groove to abut against the spring, and the rotating shaft sequentially penetrates through the circular plate, the hollow shaft and the.

Further, the base includes relative interval arrangement's last diaphragm and lower diaphragm, sets up the riser at last, lower diaphragm one end, sets up the first screw on the diaphragm down, upwards passes the first bolt of first screw and sets up the base at last diaphragm top, upper and lower diaphragm is located the shaft tower cross arm both sides, rotate first bolt and can press from both sides tightly or loosen the shaft tower cross arm.

Further, the casing includes circular shape procapsid and back casing, and preceding, the relative one end of back casing has two outside second portions of bending respectively, and two second portions of bending are gone up to correspond the interval and are provided with a plurality of protruding pieces, are provided with the second through-hole on the protruding piece, the base top is the arc that matches with preceding, back casing, and is provided with the two second portions of bending male arc wall that can supply, is provided with in the arc wall and supplies protruding piece male slot, the base runs through the hole of stepping down that is provided with the slot intercommunication, and after protruding piece inserted the slot, the second bolt passed the hole of stepping down and the locking in the nut behind the second through-hole on the protruding piece.

Furthermore, the buckle is including setting up and keeping away from the inboard second recess of the first portion of bending of plectane and one end setting are in card on the plectane, the card other end is located the second recess and has the clearance with this first portion of bending, spring one end is through this clearance around establishing on the card.

Furthermore, the corresponding positions of the front shell and the rear shell are provided with the wire passing holes.

Furthermore, the inner side of the cylinder is provided with a convex ring which is convex inwards along the radial direction of the cylinder, the convex ring and the end part of the hollow shaft are positioned on the same plane, and the convex ring and the cylinder on the outer side of the convex ring form the placing groove.

Furthermore, the grounding device also comprises a wire clamp detachably arranged at one end of the grounding copper wire.

The invention has the following beneficial effects:

the grounding device can be placed on the tower cross arm (the tower cross arm is a grounding end) for a long time through the base, and an operator can test electricity and hang the ground on an operation site only by carrying one operating rod and one electricity testing head, so that the number of tools and appliances carried during operation is effectively reduced, and the burden of the operator is reduced; when the grounding copper wire is not used, the grounding copper wire is wound on the winding drum to be contained in the shell, so that the grounding copper wire can be prevented from being damaged in an outdoor environment for a long time, and the grounding copper wire can be prevented from being worn due to actions such as long-term transportation, lifting and the like; when grounding is needed, one end of the grounding copper wire is pulled out of the shell by the operating rod and is fixed on a corresponding wire, and therefore the grounding operation can be completed, so that tools can be prevented from being transferred back and forth for many times by the rod, the operation procedure is simplified, the working strength and difficulty of operators are reduced, and the working efficiency is improved; the spring is arranged in the bobbin, two ends of the spring are respectively arranged on the bobbin and the rotating shaft, and when the operating rod pulls out the grounding copper wire, the spring generates an upward pulling force on the grounding copper wire, so that the grounding copper wire is in a tightened state after being connected with a lead, the phenomenon that the grounding copper wire swings due to loosening and sagging to reduce the safety distance between the grounding copper wire and a lower part or a peripheral adjacent charged body is avoided, and the operation risk is reduced; after the operation is completed, the grounding copper wire and the lead are disassembled, and the grounding copper wire automatically retracts into the shell under the action of the spring, so that the operation is safe and simple.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic structural view of the bobbin and the spring according to the present invention.

Wherein, 1, a base; 11. an upper transverse plate; 12. a lower transverse plate; 13. a vertical plate; 14. a first screw hole; 15. a base; 16. an arc-shaped slot; 17. a slot; 18. a hole of abdication; 21. a front housing; 22. a rear housing; 23. a second bending portion; 24. a protruding block; 25. a second through hole; 26. a wire passing hole; 3. a bobbin; 31. a cylinder; 32. a circular plate; 33. a hollow shaft; 35. a second groove; 36. a card; 37. a raised ring; 38. a first bending portion; 4. a snap ring; 5. a rotating shaft; 6. a spring.

Detailed Description

As shown in fig. 1 to 3, the outdoor grounding device comprises a base 1, a housing, a bobbin 3, a snap ring 4, a spring 6, a grounding copper wire, a rotating shaft 5 and a wire clamp, wherein the base 1 is detachably arranged on a cross arm of a tower, the housing is arranged on the base 1 through a fixing mechanism, the rotating shaft 5 is arranged in the housing, two ends of the rotating shaft are respectively arranged on the housing, the bobbin 3 is rotatably arranged on the rotating shaft 5, the periphery of the bobbin 3 is provided with a first groove for winding the grounding copper wire, the spring 6 is arranged in the bobbin 3 to form a spring 6 coil concentric with the bobbin 3, two ends of the spring 6 are respectively arranged on the bobbin 3 and the rotating shaft 5, the snap ring 4 is arranged at the inner side of the bobbin 3 to prevent the spring 6 from falling and rotates along with the bobbin 3, the housing is provided with a wire passing hole 26 for passing the grounding copper wire, and the wire clamp is detachably arranged at one end, the concrete structure of the wire clamp is the prior art.

The base 1 comprises an upper transverse plate 11 and a lower transverse plate 12 which are arranged at intervals relatively, a vertical plate 13 arranged at one end of the upper transverse plate 12 and at one end of the lower transverse plate 12, a first screw hole 14 arranged on the lower transverse plate 12, a first bolt upwards penetrating through the first screw hole 14 and a base 15 arranged at the top of the upper transverse plate 11, the upper transverse plate 11 and the lower transverse plate 12 are positioned at two sides of a tower cross arm, namely, during installation, the tower cross arm is positioned between the upper transverse plate 11 and the lower transverse plate 12, the first bolt is rotated to upwards support the tower cross arm, so that the outdoor grounding device is fixed on the tower cross arm, and when the outdoor grounding device is detached, the first bolt is rotated in the opposite direction to separate the outdoor grounding device from the tower cross arm, so that the outdoor grounding device is detached from the tower cross arm, and in practical use.

The shell comprises a circular front shell 21 and a circular rear shell 22, wherein the front shell 21 and the rear shell 22 are both provided with wire through holes 26, one ends of the front shell 21 and the rear shell 22 opposite to each other are respectively provided with two outward second bending parts 23, the two second bending parts 23 are correspondingly provided with three convex blocks 24 at intervals, each convex block 24 is provided with a second through hole 25, the top of the base 15 is in an arc shape matched with the front shell 21 and the rear shell 22 and is provided with an arc-shaped groove 16 into which the two second bending parts 23 can be inserted, the arc-shaped groove 16 is internally provided with a slot 17 into which the convex block 24 can be inserted, the base 15 is provided with a abdicating hole 18 communicated with the slot 17 in a penetrating way, after the convex block 24 is inserted into the slot 17, a second bolt passes through the abdicating hole 18 and the second through hole 25 on the convex block 24 and is locked in a nut, so that the front shell 21 and the rear shell, the front case 21 and the rear case 22 are more stably provided on the base 1.

The bobbin 3 comprises a cylinder 31, a circular plate 32 arranged in the cylinder 31 and closing the cylinder 31, a hollow shaft 33 arranged on the circular plate 32 and concentric with the cylinder 31, a buckle arranged on the inner side of the cylinder 31 and a placing groove arranged on the inner side of the cylinder 31, wherein the circular plate 32 is provided with a first through hole communicated with the cylinder 31, two ends of the cylinder 31 are provided with a first bending part 38 bent outwards along the radial direction of the cylinder to form a first groove, the spring 6 is wound by taking the hollow shaft 33 as an axis and one end of the spring is clamped on the buckle, the placing groove and the end part of the hollow shaft 33 are positioned on the same plane, the clamping ring 4 is placed in the placing groove to abut against the spring 6, wherein the inner side of the cylinder 31 is provided with a convex ring 37 protruding inwards along the radial direction of the cylinder 31, the convex ring 37 and the end part of the hollow shaft 33 are positioned on the same plane, the convex ring 37 and the cylinder 31 on the, the two ends of the rotating shaft 5 are fixed on the front casing 21 and the rear casing 22 respectively, and the structure and the arrangement mode of the rotating shaft 5 are the prior art.

The snap comprises a second groove 35 arranged at the inner side of a first bending part 38 far away from the circular plate 32 and a clamping piece 36 with one end arranged on the circular plate 32, the other end of the clamping piece 36 is positioned in the second groove 35 and has a gap with the first bending part 38, and one end of the spring 6 is wound on the clamping piece 36 through the gap.

The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents and modifications within the scope of the description.

Claims

1. An outdoor grounding device, characterized in that: the base is detachably arranged on a cross arm of a tower, the shell is arranged on the base through a fixing mechanism, the rotating shaft is located in the shell, two ends of the rotating shaft are respectively arranged on the shell, the bobbin is rotatably arranged on the rotating shaft, a first groove for the grounding copper wire to be wound is formed in the periphery of the bobbin, the spring is arranged in the bobbin to form a spring ring concentric with the bobbin, two ends of the spring are respectively arranged on the bobbin and the rotating shaft, the snap ring is arranged on the inner side of the bobbin to prevent the spring from falling and rotating along with the bobbin, and a wire passing hole for the grounding copper wire to pass through is formed in the shell; the base comprises an upper transverse plate and a lower transverse plate which are arranged at intervals relatively, a vertical plate arranged at one end of the upper transverse plate and one end of the lower transverse plate, a first screw hole arranged on the lower transverse plate, a first bolt which upwards passes through the first screw hole and a base arranged at the top of the upper transverse plate, the upper transverse plate and the lower transverse plate are positioned at two sides of the tower cross arm, and the tower cross arm can be clamped or loosened by rotating the first bolt; the casing includes circular shape procapsid and back casing, and preceding, the relative one end of back casing has two outside second portions of bending respectively, and two second portions of bending are gone up to correspond the interval and are provided with a plurality of protruding pieces, are provided with the second through-hole on the protruding piece, the base top is the arc that matches with preceding, back casing, and is provided with the inserted arc wall that can supply two second portions of bending, is provided with in the arc wall and supplies protruding piece male slot, the base runs through the hole of stepping down that is provided with the slot intercommunication, and after the protruding piece inserted the slot, the second bolt passed the hole of stepping down and was locked in the nut behind the second through-hole on the protruding piece.

2. An outdoor grounding device according to claim 1, wherein: the bobbin includes the drum, set up in the drum and seal the plectane of drum, set up on the plectane and with the endocentric hollow shaft of drum, set up at the inboard buckle of drum and set up the standing groove in the drum, set up the first through-hole with the drum intercommunication on the plectane, the drum both ends have along its radial outside first portion of bending in order to form first recess, the spring uses the hollow shaft to establish and one end card on the buckle as the axle, and standing groove and hollow shaft tip are in the coplanar, the snap ring is placed in the standing groove in order to support the spring, the axis of rotation passes plectane, hollow shaft and snap ring in proper order.

3. An outdoor grounding device according to claim 2, wherein: the buckle is including setting up and keeping away from inboard second recess of the first portion of bending and one end setting of plectane are in card on the plectane, the card other end is located the second recess and has the clearance with this first portion of bending, spring one end is around establishing on the card through this clearance.

4. An outdoor grounding device according to claim 1, wherein: the corresponding positions of the front shell and the rear shell are provided with the wire passing holes.

5. An outdoor grounding device according to claim 2, wherein: the inner side of the cylinder is provided with a convex ring which is convex inwards along the radial direction of the cylinder, the convex ring and the end part of the hollow shaft are positioned on the same plane, and the convex ring and the cylinder on the outer side of the convex ring form the placing groove.

6. An outdoor earthing device according to claim 1 or 2, characterized in that: the grounding copper wire clamp further comprises a wire clamp detachably arranged at one end of the grounding copper wire.