Ground wire take-up and pay-off device

Abstract

The utility model relates to the technical field of temporary grounding, in particular to a grounding wire take-up and pay-off device, which is characterized in that an embedded part is connected with one end of a grounding cable, the lower end of the embedded part is inserted into soil, the other end of the grounding cable is connected with grounding equipment through a connecting cable, and the middle part of the grounding cable is wound on a take-up assembly; the supporting frame is fixedly connected with the fixing frame, the fixing frame is fixedly connected with one end of the connecting pipe, the outer ring of the first bearing is fixedly connected with the rotating pipe, the end of the rotating pipe is fixedly connected with the end plate, the ends of the supporting rods are fixedly connected with the end plate, the middle of the grounding cable is arranged in the clamping piece, and the fixing clamping plate is fixedly connected with the two supporting rods. A movable clamping plate is arranged on the two supporting rods, the distance between the movable clamping plate and the fixed clamping plate is adjusted through an adjusting bolt, a grounding cable is in lap joint with the outer portion of the rotating pipe and penetrates out of the position between the fixed clamping plate and the movable clamping plate, and the distance between the movable clamping plate and the fixed clamping plate is adjusted through the adjusting bolt to limit movement of the grounding cable.

Description

Technical Field

[0001] The utility model relates to the technical field of temporary grounding, in particular to a grounding wire retracting and extending device. Background Art

[0002] Temporary grounding wires are essential for ensuring personal and equipment safety. When power is removed from equipment or lines, a temporary grounding wire must be installed before maintenance to prevent potential damage to operators or equipment from a sudden power surge.

[0003] Generally speaking, the process for operators to use temporary grounding wires is: moving out the temporary grounding wire → transporting it to the temporary grounding wire installation location → unfolding the temporary grounding wire → installing the temporary grounding wire → removing the temporary grounding wire → winding the temporary grounding wire. Since the distance between the grounding points is always changing, the existing grounding wire storage equipment requires all the grounding wires wrapped around it to be removed before grounding, which is inconvenient. Utility Model Content

[0004] The utility model provides a grounding wire retracting and extending device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A grounding wire retracting and releasing device includes an embedded part, the embedded part is connected to one end of the grounding cable, the lower end of the embedded part is inserted into the soil, the other end of the grounding cable is connected to the grounding device through a connecting cable, the middle part of the grounding cable is wound on the wire retracting assembly, the wire retracting assembly includes a support frame, the support frame is fixedly connected to the fixing frame, the fixing frame is fixedly connected to one end of the connecting pipe, a plurality of bearings are mounted on the connecting pipe, the outer ring of the bearing is fixedly connected to the rotating tube, the end of the rotating tube is fixedly connected to the end plate, and a plurality of bearings are mounted on the connecting pipe. There are several support rods, the ends of the support rods are fixedly connected to the end plates, the support rods are in a circular array on the end plates, and a clamping member is provided between two adjacent support rods, and the clamping member includes a fixed splint and a movable splint, the fixed splint is fixedly connected to the two support rods, and a movable splint is installed on the two support rods, and the distance between the movable splint and the fixed splint is adjusted by adjusting bolts. The grounding cable is overlapped on the outside of the rotating tube and passes through between the fixed splint and the movable splint. The distance between the movable splint and the fixed splint is adjusted by adjusting bolts to limit the movement of the grounding cable.

[0007] Furthermore, the fixed splint includes a plate body 1, one end of the plate body 1 is fixedly connected to the plate body 2, the angle between the plate body 1 and the plate body 2 is α, three circular holes 1 are provided on the plate body 1, the circular holes 1 located on both sides are fixedly connected to the support rod, the circular hole 1 located in the middle is concentrically arranged with the inner ring of the bearing 2, the bearing 2 is fixedly connected to the plate body 1, and the inner ring of the bearing 2 is fixedly connected to the adjusting bolt.

[0008] Furthermore, the movable splint includes a plate body three, one end of the plate body three is fixedly connected to the plate body four, the angle between the plate body three and the plate body four is β, two circular holes two are provided on the plate body three, the support rod passes through the circular hole two, and a threaded hole is also provided on the plate body three, and the threaded hole is connected to the adjusting bolt through a thread.

[0009] Furthermore, the handle includes a support plate, which is fixedly connected to the mounting piece. The mounting piece is provided with a sliding rod, which can slide axially on the mounting piece. The bottom of the sliding rod is fixedly connected to the clamping piece. A spring is provided between the clamping piece and the mounting piece, and the spring is sleeved on the sliding rod.

[0010] Furthermore, the length of the pressing member is smaller than the distance between the two end plates.

[0011] Furthermore, the mounting member includes a mounting plate 1 and a mounting plate 2 arranged in parallel, a connecting plate 3 being fixed between the mounting plate 1 and the mounting plate 2, an end of the mounting plate 1 being fixedly connected to the support plate, a circular hole 3 being provided on the mounting plate 1, and a circular hole 4 being provided on the mounting plate 2, the circular hole 3 being concentrically arranged with the circular hole 4, and the sliding rod being arranged in the circular hole 3. The diameter of the circular hole 3 is equal to the diameter of the circular hole 4, and the outer diameter of the sliding rod is equal to the diameter of the circular hole 3. If there are multiple circular holes 3 and 4, then the number of circular holes 3 is equal to the number of circular holes 4, and each circular hole 3 has a circular hole 4 concentrically arranged therewith. This arrangement enables the sliding rod to pass through the circular holes 3 and 4 simultaneously, and the sliding rod can slide axially in the circular holes 3 and 4.

[0012] Furthermore, the end of the mounting plate 1 is fixedly connected to the transverse plate of the support plate. The mounting plate 1 and the transverse plate are fixed together by welding.

[0013] Furthermore, the support plate includes a vertical plate, the vertical plate is fixedly connected to the horizontal plate, and the vertical plate is perpendicular to the horizontal plate, and the vertical plate is fixedly connected to the fixing frame.

[0014] Furthermore, the pressing member includes a contact member, the upper end surface of the contact member is fixedly connected to the end of the sliding rod, and a tilting member is provided on each side of the contact member, and the side surface of the tilting member is arc-shaped.

[0015] Furthermore, a limiting member is fixed to the upper end surface of the sliding rod.

[0016] The utility model reduces the distance between the movable splint and the fixed splint, so that the movable splint plate body three and the fixed splint plate body three fix the grounding cable between the movable splint and the fixed splint, and then rotates the end plate by the rotating handle, and drives the rotating tube to rotate on the bearing one of the connecting tube through the end plate, so that the two ends of the grounding cable are wound around the outside of the support rod, and the winding method is to wind it from the middle part of the support rod to the two ends. After one layer is wound, it is wound from the two ends of the support rod to the middle part of the support rod. The cable one from the middle part to the connecting piece one is the winding section one, and the cable one from the middle part to the connecting piece two is the winding section two, so that the winding section one and the winding section two of the grounding cable are respectively wound around the two sides of the support rod, and the two sides are parts extending to the two ends with the clamping piece as the center, so that the winding section one and the winding section two do not interfere with each other, and by winding the grounding cable, the two ends of the grounding cable can be wound up or released at the same time on the wire-reeling assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection between the grounding cable and the connecting cable in the present utility model;

[0019] Figure 3 Schematic diagram of the grounding cable in the present invention;

[0020] Figure 4 The three-dimensional structure of the take-up assembly in the utility model Figure 1 ;

[0021] Figure 5 The three-dimensional structure of the take-up assembly in the utility model Figure 2 ;

[0022] Figure 6 The three-dimensional structure of the take-up assembly in the utility model Figure 3 ;

[0023] Figure 7 For this utility model Figure 6 A magnified view of point A1 in the middle;

[0024] Figure 8 For this utility model Figure 6 A perspective view of the central rotating tube;

[0025] Figure 9 This is a three-dimensional diagram of the support plate in the take-up assembly of the present invention;

[0026] Figure 10 This is a front view of the support plate in the take-up assembly of the present invention;

[0027] Figure 11 This is a three-dimensional diagram of the mounting member in the wire take-up assembly of the present invention;

[0028] Figure 12 This is a front view of the mounting member in the take-up assembly of the present invention;

[0029] Figure 13 The three-dimensional structure of the pressing part and the sliding rod in the wire take-up assembly of the utility model Figure 1 ;

[0030] Figure 14 The three-dimensional structure of the pressing part and the sliding rod in the wire take-up assembly of the utility model Figure 2 ;

[0031] Figure 15 This is a right side view of the pressing member and the sliding rod in the wire take-up assembly of the present invention;

[0032] Figure 16 The three-dimensional fixed splint in the utility model Figure 1 ;

[0033] Figure 17 The three-dimensional fixed splint in the utility model Figure 2 ;

[0034] Figure 18 This is a top view of the fixed splint in the utility model;

[0035] Figure 19 It is a three-dimensional diagram of the movable splint in the utility model;

[0036] Figure 20 It is a top view of the movable splint in the utility model;

[0037] Figure 21 The three-dimensional structure of the connecting pipe in the utility model Figure 1 ;

[0038] Figure 22 The three-dimensional structure of the connecting pipe in the utility model Figure 2 ;

[0039] Figure 23 It is a structural diagram of the connecting cable in the utility model.

[0040] In the figure, 1 is the embedded component, 2 is the grounding cable, 3 is the take-up assembly, and 4 is the connecting cable;

[0041] 201 Cable 1, 202 Fastener 1, 203 Connecting plate 1, 204 Connecting piece 1, 205 Connecting plate 2, 206 Connecting piece 2;

[0042] 401 cable 2, 402 fastener 2, 403 connecting plate 3, 404 connecting piece 3;

[0043] 301 support frame, 302 fixed frame, 303 handle, 304 connecting tube, 305 end plate, 306 rotating tube, 307 support rod, 308 clamping member, 309 rotating handle;

[0044] 30301 support plate, 30302 mounting piece, 30303 pressing piece, 30304 sliding rod, 30305 limiting piece, 30306 spring;

[0045] 303011 vertical board, 303012 horizontal board;

[0046] 303021 Mounting plate 1, 303022 Connecting plate 3, 303023 Mounting plate 2, 303024 Round hole 3, 303025 Round hole 4;

[0047] 303031 contact piece, 303032 lifting piece;

[0048] 30401 tube body 1, 30402 limit plate;

[0049] 30601 tube body 2, 30602 bearing 1, 30603 fixing plate;

[0050] 30801 fixed splint, 30802 movable splint, 30803 bearing 2, 30804 adjusting bolt;

[0051] 308011 Plate 1, 308012 Plate 2, 308013 Round hole 1, 30814 Bearing 3;

[0052] 308021 Plate body three, 308022 Plate body four, 308023 Round hole two, 308024 Threaded hole. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0054] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0055] Reference Figure 1-Figure 23As shown, the utility model is a grounding wire retracting and releasing device, including an embedded part 1, which is connected to one end of a grounding cable 2, the lower end of the embedded part 1 is inserted into the soil, the other end of the grounding cable 2 is connected to the grounding device through a connecting cable 4, the middle part of the grounding cable 2 is wound on a wire-reeling assembly 3, and the wire-reeling assembly 3 includes a support frame 301, the support frame 301 is fixedly connected to a fixing frame 302, the fixing frame 302 is fixedly connected to one end of a connecting tube 304, a plurality of bearings 1 are provided on the connecting tube 304, the outer ring of the bearing 1 is fixedly connected to a rotating tube 306, the end of the rotating tube 306 is fixedly connected to an end plate 305, a plurality of support rods 307 are provided between the two end plates 305, the ends of the support rods 307 are fixedly connected to the end plates 305, and the support rods 307 are arranged in a circular array on the end plates 305. A clamping member 308 is provided in the middle part of the outer wall of the rotating tube 306, and the clamping member 308 includes a fixed splint 30801 and a movable splint 30802. The fixed splint 30801 is fixedly connected to the two support rods 307, and the two support rods 307 are equipped with a movable splint 30802. The distance between the movable splint 30802 and the fixed splint 30801 is adjusted by adjusting the bolt 30804. The grounding cable is overlapped on the outside of the rotating tube and passes through between the fixed splint 30801 and the movable splint 30802. The distance between the movable splint 30802 and the fixed splint 30801 is adjusted by adjusting the bolt 30804 to limit the movement of the grounding cable. The movable splint 30802 and the fixed splint 30801 can limit the axial movement of the grounding cable, and can also limit the movement of the grounding cable within the range of the two end plates.

[0056] The utility model provides an embodiment, referring to Figure 16-Figure 18 , the fixed splint 30801 includes a plate body 1 308011, one end of the plate body 1 308011 is fixedly connected to the plate body 2 308012, the angle between the plate body 1 308011 and the plate body 2 308012 is α, the range of α is [145-179], preferably 165°, three circular holes 1 308013 are provided on the plate body 1 308011, the circular holes 1 308013 located on both sides are fixedly connected to the support rods, the support rods pass through the circular holes 1 308013 located on both sides, a support rod is provided in each circular hole 1 308013, the circular hole 1 308013 located in the middle is concentrically arranged with the inner ring of the bearing 3 308014, the bearing 3 308014 is fixedly connected to the plate body 1 308011, and the inner ring of the bearing 3 308014 is fixedly connected to the adjusting bolt 30804.

[0057] The utility model provides an embodiment, referring to Figure 19-20The movable splint 30802 includes a plate body three 308021, one end of the plate body three 308021 is fixedly connected to the plate body four 308022, the angle between the plate body three 308021 and the plate body four 308022 is β, the range of β is [145-179], preferably 165°, two circular holes 308023 are provided on the plate body three 308021, the support rod passes through the circular hole 308023, and a threaded hole 308024 is also provided on the plate body three 308021, and the threaded hole 308024 is connected to the adjusting bolt 30804 by a thread.

[0058] When the grounding cable 2 is set in the clamping member 308, when the grounding cable 2 is wound on the wire take-up assembly 3, the middle part of the grounding cable 2 is overlapped on the rotating tube, and the two ends of the grounding cable are passed through the gap between the movable clamping plate 30802 and the fixed clamping plate 30801, and the adjusting bolt 30804 is rotated and the adjusting bolt 30804 is screwed into the threaded hole 308024 through the cooperation between the adjusting bolt 30804 and the threaded hole 308024. The distance between the movable clamping plate 30802 and the fixed clamping plate 30801 is reduced, that is, the movable clamping plate 30802 moves on the support rod toward the fixed clamping plate 30801 through the second circular hole 308023. By reducing the distance between the movable clamping plate 30802 and the fixed clamping plate 30801, the plate body 308021 of the movable clamping plate 30802 and the plate body 308021 of the fixed clamping plate 30801 fix the grounding cable 2 on the movable clamping plate. The first and second ends of the grounding cable 2 are wound around the outer sides of the support rod 307, and the first and second ends of the grounding cable 2 are wound around the outer sides of the support rod 307.

[0059] When the embedded part 1 is connected to the grounding cable 2, the connection hole 1 of the connector 1 204 at the end of the grounding cable 2 is concentrically arranged with the connection hole 4 on the embedded part 1, and the connection hole 1 and the connection hole 4 are fixed together by bolts; when the grounding cable 2 is connected to the connecting cable 4, the connection hole 3 of the connector 3 404 at the end of the grounding cable 2 is concentrically arranged with the connection hole 2 of the connector 2 206 at the end of the grounding cable 2, and the connection hole 3 and the connection hole 2 are fixed together by bolts.

[0060] Reference Figure 8 The rotating tube 306 includes a second tube body 30601, with several fixing plates 30603 fixed to the ends of the second tube body 30601. The fixing plates 30603 are fixedly connected to the end plates 305. The connecting tube 304 includes a first tube body 30401, with a limit plate 30402 fixed to the first tube body 30401. The limit plate 30402 is disposed between the fixed frame 302 and the fixing plates 30603 of the rotating tube 306. The fixed frame 302 is fixedly connected to the handle 303. A rotating handle 309 is fixed to the outer side of one end plate 305 away from the fixed frame 302.

[0061] The utility model provides an embodiment, referring to Figure 3 The grounding cable 2 includes a cable 1 201, wherein the interior of the cable 1 201 is a conductor, the conductor is made of a non-insulating material, preferably copper, and an insulating sheath is provided on the outside of the conductor, the insulating sheath is preferably made of PVC material, one end of the cable 1 201 is fixed to the connecting plate 1 203 through a fastener 1 202, the connecting plate 1 203 is fixedly connected to the connecting piece 1 204, the connecting plate 1 203 and the connecting piece 1 204 are both made of non-insulating material, preferably copper, and a connecting hole 1 is provided on the connecting piece 1 204, the other end of the cable 1 201 is fixed to the connecting plate 2 205 through another fastener 1 202, the connecting plate 2 205 is fixedly connected to the connecting piece 2 206, the connecting plate 2 205 and the connecting piece 2 206 are both made of non-insulating material, preferably copper, at least two connecting holes 2 are provided on the connecting piece 2 206, and the fastener 1 202 is preferably made of PVC material. Cable 1 201 and connecting plate 1 203 can also be fixed together by welding, and fastener 1 202 is put on the outside of cable 1 201 and connecting plate 1 203. Cable 1 201 and connecting plate 2 205 can also be fixed together by welding, and fastener 1 202 is put on the outside of cable 1 201 and connecting plate 2 205.

[0062] The utility model provides an embodiment, referring to Figure 23The connecting cable 4 includes a second cable 401. Both ends of the second cable 401 are fixed to a third connecting plate 403 via a second fastener 402. The third connecting plate 403 is fixedly connected to a third connecting member 404. Both the third connecting plate 403 and the third connecting member 404 are made of a non-insulating material, preferably copper. The third connecting member 404 is provided with a third connecting hole. The second cable 401 and the third connecting plate 403 can also be fixed together by welding. The second fastener 402 is placed over the outside of the second cable 401 and the third connecting plate 403. The first fastener 202 is preferably made of PVC. The embedded part 1 is provided with a fourth connecting hole. The embedded part 1 is made of a non-insulating material, preferably copper.

[0063] The utility model provides an embodiment, referring to Figure 4-Figure 6 The handle includes a support plate 30301, which is fixedly connected to a mounting member 30302. A sliding rod 30304 is mounted on the mounting member 30302. The sliding rod 30304 can slide axially on the mounting member 30302. The bottom of the sliding rod 30304 is fixedly connected to a pressing member 30303. A spring 30306 is provided between the pressing member 30303 and the mounting member 30302. The spring 30306 is sleeved on the sliding rod 30304. The length of the pressing member 30303 is less than the distance between the two end plates, allowing the pressing member 30303 to enter between the two end plates without interfering with each other.

[0064] The utility model provides an embodiment, referring to Figure 11-12The mounting member 30302 includes a first mounting plate 303021 and a second mounting plate 303023, which are arranged in parallel. A third connecting plate 303022 is fixed between the first and second mounting plates 303021 and 303023. The end of the first mounting plate 303021 is fixedly connected to the support plate 30301. The first mounting plate 303021 is provided with a third circular hole 303024, and the second mounting plate 303023 is provided with a fourth circular hole 303025. The third circular hole 303024 and the fourth circular hole 303025 are arranged concentrically. The sliding rod 30304 is disposed in the third circular hole 303024. The diameter of the third circular hole 303024 is equal to the diameter of the fourth circular hole 303025, and the outer diameter of the sliding rod 30304 is equal to the diameter of the third circular hole 303024. If there are multiple circular holes 303024 and 303025, then the number of circular holes 303024 is equal to the number of circular holes 303025. Each circular hole 303024 has a circular hole 4 303025 concentrically arranged therewith. This arrangement allows the sliding rod 30304 to pass through both circular holes 303024 and 303025 simultaneously, and the sliding rod 30304 can slide axially in the circular holes 303024 and 303025. At the same time, the first mounting plate 303021 serves as a connection, the second mounting plate 303023 serves as a limiter for the spring 30306, and the mounting member 30302 as a whole also serves as a grip, allowing a worker to lift the entire device using the mounting member 30302. When the spring 30306 is at normal length, the contact plate of the clamping member 30303 can connect with the support rod, and the lower end of the spring 30306 is fixedly connected to the upper end surface of the contact plate, and the upper end of the spring 30306 is fixedly connected to the mounting plate 2 303023 of the mounting member 30302.

[0065] When more and more grounding cables are wound around the support rod, the overall thickness of the grounding cables increases, and the increase in thickness will cause the contact plate to move upward, and the upward movement of the contact plate will put pressure on the spring 30306. When the grounding cable needs to be released, under the pressure of the contact plate, except for the released part of the grounding cable on the support rod, the other grounding cables still wound around the support rod will remain wound around the support rod, avoiding the phenomenon of the wound part loosening during the release process. The end of the mounting plate 303021 is fixedly connected to the horizontal plate 303012 of the support plate 30301. The mounting plate 303021 and the horizontal plate 303012 are fixed together by welding. Reference Figure 10 The support plate 30301 includes a vertical plate 303011, which is fixedly connected to the horizontal plate 303012. The vertical plate 303011 and the horizontal plate 303012 are vertically arranged, and the vertical plate 303011 is fixedly connected to the fixing frame.

[0066] The utility model provides an embodiment, referring to Figure 13-15 The pressing member 30303 includes a contact member 303031, the upper end of which is fixedly connected to the end of the sliding rod 30304. A tilting member 303032 is provided on each side of the contact member 303031, each with an arc-shaped side surface. The arc-shaped side surfaces of the tilting members 303032 ensure smooth contact between the pressing member 30303 and the grounding cable, preventing damage to the surface of the grounding cable. A limiter 30305 is fixed to the upper end of the sliding rod 30304. The limiter 30305 prevents the sliding rod 30304 from falling off the mounting member 30302.

[0067] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grounding wire retracting and releasing device, comprising an embedded part, wherein the embedded part is connected to one end of the grounding cable, the lower end of the embedded part is inserted into the soil, the other end of the grounding cable is connected to the grounding device through a connecting cable, the middle part of the grounding cable is wound around the wire reel assembly, the wire reel assembly comprises a support frame, the support frame is fixedly connected to the fixing frame, the fixing frame is fixedly connected to one end of the connecting pipe, a plurality of bearings are mounted on the connecting pipe, the outer ring of the bearing is fixedly connected to the rotating tube, the end of the rotating tube is fixedly connected to the end plate, a plurality of support rods are provided between the two end plates, the ends of the support rods are fixedly connected to the end plates, and the support rods are arranged in a circular array on the end plate, characterized in that: A clamping piece is provided between two adjacent support rods, and the clamping piece includes a fixed splint and a movable splint. The fixed splint is fixedly connected to the two support rods, and a movable splint is installed on the two support rods. The distance between the movable splint and the fixed splint is adjusted by adjusting bolts. The grounding cable is overlapped on the outside of the rotating tube and passes through between the fixed splint and the movable splint. The distance between the movable splint and the fixed splint is adjusted by adjusting bolts to limit the movement of the grounding cable.

2. A ground wire retracting and extending device according to claim 1, characterized in that: The fixed splint includes a plate body 1, one end of the plate body 1 is fixedly connected to the plate body 2, the angle between the plate body 1 and the plate body 2 is α, three circular holes 1 are provided on the plate body 1, the circular holes 1 located on both sides are fixedly connected to the support rod, the circular hole 1 located in the middle is concentrically arranged with the inner ring of the bearing 3, the bearing 3 is fixedly connected to the plate body 1, and the inner ring of the bearing 3 is fixedly connected to the adjusting bolt.

3. The ground wire retracting device according to claim 1, characterized in that: The movable splint includes a plate body three, one end of which is fixedly connected to a plate body four, and the angle between the plate body three and the plate body four is β. Two circular holes two are provided on the plate body three, and the support rod passes through the circular hole two. A threaded hole is also provided on the plate body three, and the threaded hole is connected to the adjusting bolt through a thread.

4. The ground wire retracting device according to claim 1, characterized in that: The fixing frame is fixedly connected to the handle, and the handle includes a support plate, and the support plate is fixedly connected to the mounting piece. The mounting piece is provided with a sliding rod, and the sliding rod can slide axially on the mounting piece. The bottom of the sliding rod is fixedly connected to the clamping piece. A spring is provided between the clamping piece and the mounting piece, and the spring is sleeved on the sliding rod.

5. The ground wire retracting device according to claim 4, characterized in that: The length of the pressing member is smaller than the distance between the two end plates.

6. The ground wire retracting and extending device according to claim 4, characterized in that: The mounting member includes a mounting plate 1 and a mounting plate 2 arranged in parallel, a connecting plate 3 is fixed between the mounting plate 1 and the mounting plate 2, the end of the mounting plate 1 is fixedly connected to the support plate, a circular hole 3 is provided on the mounting plate 1, and a circular hole 4 is provided on the mounting plate 2. The circular hole 3 is concentrically arranged with the circular hole 4, and the sliding rod is arranged in the circular hole 3. The diameter of the circular hole 3 is equal to the diameter of the circular hole 4, and the outer diameter of the sliding rod is equal to the diameter of the circular hole 3.

7. The ground wire retracting and extending device according to claim 6, characterized in that: The end of the mounting plate 1 is fixedly connected to the horizontal plate of the support plate, and the mounting plate 1 and the horizontal plate are fixed together by welding.

8. The ground wire retracting and extending device according to claim 6, characterized in that: The support plate includes a vertical plate, which is fixedly connected to the horizontal plate. The vertical plate and the horizontal plate are vertically arranged, and the vertical plate is fixedly connected to the fixing frame.

9. The ground wire retracting and extending device according to claim 4, characterized in that: The pressing member includes a contact member, the upper end surface of the contact member is fixedly connected to the end of the sliding rod, and a tilting member is provided on each side of the contact member, and the side surface of the tilting member is arc-shaped.

10. The ground wire retracting and extending device according to claim 4, characterized in that: A limiting piece is fixed to the upper end surface of the sliding rod.

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