Portable single-person ground wire winding and unwinding device

Abstract

The portable single-person ground wire winding and unwinding device comprises a U-shaped groove, a first pipe clamp and a second pipe clamp are fixed to the two sides of the bottom of the U-shaped groove respectively, the first pipe clamp and the second pipe clamp are matched to be used for fixing a rod body of a ground rod, and limiting plates are fixed to the two sides of a groove opening of the U-shaped groove respectively; the groove wall of the U-shaped groove is used for providing the winding position of a grounding wire on the grounding rod, and the limiting plate is used for preventing the grounding wire from falling off from the U-shaped groove. Compared with the prior art, a traditional winding and unwinding mode of winding the grounding wire on the grounding rod is changed, the grounding rod is fixed at the bottom of the U-shaped groove through the pipe clamp, and the grounding wire is wound on the U-shaped groove and clamped between the limiting plate and the rod body. And time and physical power required for winding and unwinding the grounding wire can be effectively reduced, single-person operation is facilitated, and the winding and unwinding efficiency of the grounding wire is greatly improved. The overall structure is simple, portability is good, operation is easy, the grounding wire in the middle of the U-shaped groove serves as a handheld part in the transportation process, and the weight and cost are further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of ground wire retraction and extension, and in particular to a portable single-person ground wire retraction and extension device. Background Art

[0002] Currently, during normal operations within a substation, two people are required to retract and release the grounding wires. One person is responsible for gathering and lifting the operating rod while the other winds the copper wire. When releasing the wires, one person is responsible for releasing the wires while the other manages the wires and separates the operating rod. This traditional method of retracting and releasing the wires requires two people, making the process time-consuming and labor-intensive. The winding method also leads to disorganized retraction, making it extremely inconvenient for the next use. When the workload is heavy and the number of grounding wire groups is large, a single person is often required to retract and release the grounding wires. However, due to the extremely long and heavy operating rods of some grounding wires and the fact that the team's frontline staff is predominantly female, retracting and releasing the grounding wires by one person is inefficient and also places a heavy physical strain on frontline workers.

[0003] Therefore, it is necessary to provide a portable single-person retractable grounding wire device that can be identified through testing to solve the above technical problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies in the above-mentioned prior art and disclose a portable single-person grounding wire retractable device to solve the problem of low efficiency and high labor intensity caused by the existing grounding wire being wrapped around the grounding rod.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a portable single-person grounding wire retracting and releasing device, including a U-shaped groove, a first pipe clamp and a second pipe clamp are respectively fixed on both sides of the bottom of the U-shaped groove, the first pipe clamp and the second pipe clamp cooperate to fix the rod body of the grounding rod, and a limit plate is respectively fixed on both sides of the notch of the U-shaped groove, the groove wall of the U-shaped groove is used to provide a position for the grounding wire on the grounding rod to be wound, and the limit plate is used to prevent the grounding wire from falling off the U-shaped groove.

[0006] Preferably, the U-shaped groove includes a first L-shaped plate and a second L-shaped plate, the first L-shaped plate and the second L-shaped plate are detachably connected, and the groove width of the U-shaped groove is adjusted by the first L-shaped plate and the second L-shaped plate.

[0007] Preferably, the first L-shaped plate and the second L-shaped plate are fixed by fastening bolts, and the second L-shaped plate is provided with adjustment holes adapted to the fastening bolts.

[0008] Preferably, the first pipe clamp includes a first half hoop and a second half hoop, one end of the first half hoop is hinged to the second half hoop, a locking assembly is provided between the other end of the first half hoop and the second half hoop, and the first half hoop is fixed to the U-shaped groove.

[0009] Preferably, the locking assembly includes a pin rod hinged on the first half hoop, and the pin rod passes through the second half hoop and is threadedly connected to the fixing nut.

[0010] Preferably, the second half hoop is provided with a side hole adapted to fit the pin rod.

[0011] Preferably, the fixing nut is a butterfly nut.

[0012] Preferably, rubber pads are provided on the inner sides of the first half hoop and the second half hoop.

[0013] Preferably, the structure of the second pipe clamp is the same as that of the first pipe clamp.

[0014] Preferably, there are three of each of the first pipe clamps and the second pipe clamps.

[0015] Compared to the existing technology, this invention changes the traditional method of winding the grounding wire around the rod. The rod is fixed to the bottom of the U-shaped groove with a pipe clamp, and the grounding wire is wrapped around the U-shaped groove and clamped between the retaining plate and the rod body. This effectively reduces the time and effort required to retract and extend the grounding wire, facilitates single-person operation, and greatly improves the efficiency of grounding wire retraction and extension. The overall structure is simple, portable, and easy to operate. The grounding wire in the middle of the U-shaped groove serves as a portable part during transportation, further reducing the number of accessories required for the device, reducing its weight and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 A structural schematic diagram of another perspective of an embodiment of the present invention;

[0018] Figure 3 A rear view of an embodiment of the present invention;

[0019] Figure 4 for Figure 1 A magnified schematic diagram of the structure at center A;

[0020] Figure 5 This is a schematic diagram of the structure of the present invention when the ground wire is wound;

[0021] Figure 6 The figure shows the structure of the grounding wire of the present invention.

[0022] Description of reference numerals:

[0023] 1. U-shaped groove, 2. First pipe clamp, 3. Second pipe clamp, 4. Ground rod, 5. Limit plate, 6. Ground wire, 11. First L-shaped plate, 12. Second L-shaped plate, 13. Fastening bolt, 121. Adjustment hole, 21. First half hoop, 22. Second half hoop, 221. Side hole, 23. Locking assembly, 231. Pin rod, 232. Fixing nut. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in this field based on these embodiments are all within the scope of protection of the present invention.

[0025] The following is combined with Figure 1 and attached Figure 3 To further illustrate the present invention, a portable, single-person grounding wire retracting and unretracting device comprises a U-shaped groove 1. A first pipe clamp 2 and a second pipe clamp 3 are fixed to either side of the bottom of the U-shaped groove 1. The first pipe clamp 2 and the second pipe clamp 3 cooperate to secure the body of a grounding rod 4. A limiting plate 5 is fixed to either side of the notch of the U-shaped groove 1. The groove wall of the U-shaped groove 1 provides a position for winding the grounding wire 6 on the grounding rod 4. The limiting plate 5 prevents the grounding wire 6 from falling off the U-shaped groove 1. The body of the grounding rod 4 is secured by the first pipe clamp 2 and the second pipe clamp 3. The grounding wire 6 of the grounding rod 4 is then wound around the outside of the U-shaped groove 1. At this point, the grounding wire 6 is trapped between the limiting plate 5 and the body. The present invention changes the traditional method of winding the grounding wire 6 around the grounding rod 4. Instead, the grounding wire 6 is wound around the U-shaped groove 1 by placing the grounding rod 4 on the ground. This facilitates single-person operation, saves effort, reduces the difficulty of winding the wire, and improves its efficiency.

[0026] Specifically, a binding tape is used to fix the grounding terminal on the copper wire of the grounding cable 6 after it is wound to prevent the terminal from being worn or lost.

[0027] As another embodiment of the present invention: Figure 2 The U-shaped groove 1 includes a first L-shaped plate 11 and a second L-shaped plate 12 , which are detachably connected. The U-shaped groove 1 adjusts the groove width through the first L-shaped plate 11 and the second L-shaped plate 12 .

[0028] An embodiment of a detachable connection between the first L-shaped plate 11 and the second L-shaped plate 12: the first L-shaped plate 11 and the second L-shaped plate 12 are fixed by fastening bolts 13, and the second L-shaped plate 12 is provided with adjustment holes 121 adapted to the fastening bolts 13. The fastening bolts 13 pass through different adjustment holes 121 to adjust the distance between the first L-shaped plate 11 and the second L-shaped plate 12, that is, to adjust the width of the U-shaped groove 1. For ground wires 6 of different lengths, the width of the U-shaped groove 1 can be adjusted through the adjustment holes 121 to expand the winding space, effectively improving the versatility of the device. Through this arrangement, the U-shaped groove 1 has a simple structure, few components, is light in weight, is easy to carry, and has low production cost.

[0029] Specifically, the dimensions of the U-shaped groove 1 are: width: 200mm; height: 102mm; thickness: 2mm; the number of adjustment holes 121 on the second L-shaped plate 12 is 12. The distance between the two adjustment holes 121 is 30mm. The two L-shaped plates can move up to 360mm, and the maximum length of the U-shaped groove 1 can reach 960mm.

[0030] An embodiment of the first pipe clamp 2: Figure 4 The first pipe clamp 2 includes a first half hoop 21 and a second half hoop 22. One end of the first half hoop 21 is hinged to the second half hoop 22. A locking assembly 23 is provided between the other end of the first half hoop 21 and the second half hoop 22. The first half hoop 21 and the second half hoop 22 are fixed together by the locking assembly 23. The first half hoop 21 is fixed to the U-shaped groove 1. The first half hoop 21 and the second half hoop 22 are closed together to clamp the rod of the ground rod 4.

[0031] One embodiment of the locking assembly 23: The locking assembly 23 includes a pin 231 hinged to the first half hoop 21. The pin 231 passes through the second half hoop 22 and is threadedly connected to the fixing nut 232. Specifically, the pin 231 is a T-shaped rod.

[0032] A way of matching the pin rod 231 and the second half hoop 22: the second half hoop 22 is provided with a side hole 221 that is compatible with the pin rod 231. After the first half hoop 21 and the second half hoop 22 are closed, the pin rod 231 is rotated to enter the side hole 221 from one end of the second half hoop 22. This setting can quickly fix the first half hoop 21 and the second half hoop 22 through the pin rod 231, thereby quickly fixing the rod body.

[0033] Another way of matching the pin rod 231 with the second half hoop 22: a waist-shaped hole that matches the pin rod 231 is provided on the second half hoop 22. After the first half hoop 21 and the second half hoop 22 are closed, the pin rod 231 passes through the waist-shaped hole on the second half hoop 22 and is connected to the fixing nut 232.

[0034] As another embodiment of the present invention, the fixing nut 232 is a butterfly nut, which is easy to rotate.

[0035] As another embodiment of the present invention, rubber pads are provided on the inner sides of the first half hoop 21 and the second half hoop 22 to prevent wear during installation and removal of the grounding rod 4 .

[0036] Another embodiment of the locking assembly 23: the locking assembly 23 includes a locking bolt passing through the first half hoop 21, and the locking bolt passes through the waist-shaped hole on the second half hoop 22 and is threadedly connected to the locking nut.

[0037] As another embodiment of the present invention, the structure of the second pipe clamp 3 is the same as that of the first pipe clamp 2 .

[0038] As another embodiment of the present invention: there are three first pipe clamps 2 and three second pipe clamps 3, and the plurality of first pipe clamps 2 are distributed along the width direction of the first L-shaped plate 11, and the plurality of second pipe clamps 3 are distributed along the width direction of the second L-shaped plate 12. Specifically, the first L-shaped plate 11 and the second L-shaped plate 12 are fixed with extension plates in their width directions, and the first pipe clamp 2 and the second pipe clamp 3 are fixed on the extension plates. The grounding wires 6 currently used in the operation process are basically three-phase grounding wires 6. During the switching operation, the three-phase grounding wires 6 are often entangled, and it takes a long time to untie the grounding wires 6 and put them in the corresponding position. The present invention can fix three grounding rods 4 at a time, and wind three grounding wires 6 on the U-shaped groove 1, thereby improving the efficiency of wire retraction and release.

[0039] Specifically, the U-shaped groove 1, the limiting plate 5, the first pipe clamp 2 and the second pipe clamp 3 are all made of aluminum alloy.

[0040] The portable single-person grounding wire retractable device provided by the present invention is suitable for use in power system 10 kV and above switching operation sites and transmission line and distribution network line repair processes. The grounding wire 6 is retractable and fast.

[0041] The present invention counts the time it takes to retract the ground wire 6 after using the device, and the statistical results are shown in the following table.

[0042]

[0043] Statistics of 10kV single-person line-collecting time using the device

[0044]

[0045]

[0046] Statistics of 35kV single-person winding time using the device

[0047]

[0048] Statistics table of single-person line-collecting time using the device for 110kV. The present invention counts the time for placing the ground wire after using the device, and the statistical results are shown in the table.

[0049]

[0050] Statistics of 10kV single-person laying time using the device

[0051]

[0052] Statistics of single-person line laying time using 35kV device

[0053]

[0054] Statistics of 110kV single-person laying time using the device

[0055] Voltage level Average time for paying out and retracting 10kV 1 minute 40 seconds 35kV 1 minute 55 seconds 110kV 2 minutes and 34 seconds

[0056] Statistics of the average time for a single person to reel in and pay out the line using the device

[0057] Analysis shows that using the portable single-person grounding wire retraction and extension device, the average total time for 110kV grounding wire retraction and extension is 2 minutes and 34 seconds, the average time for 35kV grounding wire retraction and extension is 1 minute and 55 seconds, and the average time for 10kV grounding wire retraction and extension is 1 minute and 40 seconds. In summary, after field testing, the portable single-person grounding wire retraction and extension device has demonstrated excellent portability, high reliability, and strong versatility.

[0058] A portable single-person ground wire retractable device has the following beneficial effects:

[0059] (1) Reliability: The fixed structure is safe and reliable, and the grounding wire 6 will not loosen or fall off during the transfer process;

[0060] (2) Convenience: The device has a simple and lightweight structure and can be used and transferred by one person. After the device is promoted and used, compared with the traditional grounding wire 6 retraction method, only one person is needed to retract and extend the grounding wires 6 of different voltage levels, which reduces the waste of personnel. When there are multiple sets of grounding wires 6 that need to be retracted and extended, the work efficiency will be increased by at least 2 times. This device has changed the previous cumbersome way of retracting and extending the grounding wire 6, so that female front-line employees can also quickly retract and extend the grounding wires 6 of different voltage levels by using this device, reducing the physical burden of employees and reflecting the "people-oriented" safety production concept. The average time for retracting and extending the grounding wire 6 is reduced by 3 minutes and 29 seconds. According to the 997 operations that require the use of the grounding wire 6 in 2020, it can save at least 57.88 hours of working time, improve work efficiency, and reduce the time required for line power outages.

[0061] (3) Versatility: It can meet the requirements of grounding wires of different voltage levels and manufacturers.

[0062] (4) Economical: The manufacturing cost of a single device is low. Secondly, the use of this device reduces the time required to retract and extend the grounding wire by an average of 3 minutes and 29 seconds, reducing the time required for line power transmission, reducing the power loss caused by power outages, and increasing the company's economic efficiency.

[0063] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0064] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A portable single-person grounding wire retractable device, characterized in that: The invention comprises a U-shaped groove, wherein a first pipe clamp and a second pipe clamp are respectively fixed on both sides of the bottom of the U-shaped groove, and the first pipe clamp and the second pipe clamp cooperate to fix the rod body of the grounding rod. A limiting plate is respectively fixed on both sides of the notch of the U-shaped groove, and the groove wall of the U-shaped groove is used to provide a position for the grounding wire on the grounding rod to be wound, and the limiting plate is used to prevent the grounding wire from falling off the U-shaped groove.

2. The portable single-person grounding wire retractable device according to claim 1, characterized in that: The U-shaped groove includes a first L-shaped plate and a second L-shaped plate, the first L-shaped plate and the second L-shaped plate are detachably connected, and the groove width of the U-shaped groove is adjusted by the first L-shaped plate and the second L-shaped plate.

3. The portable single-person grounding wire retractable device according to claim 2, characterized in that: The first L-shaped plate and the second L-shaped plate are fixed by fastening bolts, and the second L-shaped plate is provided with adjustment holes adapted to the fastening bolts.

4. The portable single-person grounding wire retractable device according to claim 1, characterized in that: The first pipe clamp includes a first half hoop and a second half hoop, one end of the first half hoop is hinged to the second half hoop, a locking assembly is provided between the other end of the first half hoop and the second half hoop, and the first half hoop is fixed to the U-shaped groove.

5. The portable single-person ground wire retractable device according to claim 4, characterized in that: The locking assembly includes a pin rod hinged on the first half hoop, and the pin rod passes through the second half hoop and is threadedly connected to the fixing nut.

6. The portable single-person ground wire retractable device according to claim 5, characterized in that: The second half hoop is provided with a side hole matched with the pin rod.

7. The portable single-person ground wire retractable device according to claim 6, characterized in that: The fixing nut is a butterfly nut.

8. The portable single-person ground wire retractable device according to claim 7, characterized in that: The inner sides of the first half hoop and the second half hoop are both provided with rubber pads.

9. The portable single-person ground wire retractable device according to claim 8, characterized in that: The structure of the second pipe clamp is the same as that of the first pipe clamp.

10. The portable single-person ground wire retractable device according to claim 9, characterized in that: There are three of each of the first pipe clamps and the second pipe clamps.

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