Grounding device for separating type wire pole suspended at high place

Abstract

The utility model provides a kind of ground device of separation formula of convenient high place suspension wire pole, including three insulating poles, three wire end clamps and ground end clamp, insulating pole includes first pole body and second pole body, first pole body is connected with second pole body by first locking assembly, first locking assembly includes the taper sleeve of being connected on the upper end of second pole body and being set on the outer periphery of first pole body and the extrusion sleeve of being threadedly connected on the outer periphery of taper sleeve, the end of taper sleeve is equipped with several tight embrace plates, the end of extrusion sleeve is equipped with extrusion part, extrusion part can extrude tight embrace plate and be tightly embraced on the outer periphery of first pole body;Three wire end clamps are set on the upper end of three first pole body;Ground end clamp is connected with three wire end clamps by ground wire.The ground device of separation formula of convenient high place suspension wire pole provided by the utility model can be detachably designed by first pole body and second pole body, reduce the occupied space of vehicle, improve the convenience of transportation.

Description

Technical Field

[0001] This utility model belongs to the field of grounding clamp technology, and more specifically, it relates to a grounding device that is easy to separate from a high-altitude suspended pole. Background Technology

[0002] During the construction, inspection, and maintenance of power systems, grounding devices are critical equipment for ensuring the safety of workers. Their function is to reliably ground equipment during power outages, preventing electric shock accidents caused by accidental power restoration or sudden surges in induced current. A grounding device typically consists of four parts: conductor end clamps, grounding end clamps, an insulating rod, and a grounding conductor.

[0003] Traditional grounding devices often employ an integrated structure where an insulating rod is fixedly connected to the conductor end clamp. The insulating rod itself is also an integrated structure, which presents significant drawbacks in transportation and storage. Because the insulating rod is typically several meters or even longer to ensure a safe and effective insulation distance, this rigid, integrated design results in a bulky and inflexible form, requiring considerable space in the vehicle during transport and reducing its convenience. Utility Model Content

[0004] This utility model provides a grounding device that is easy to separate from a high-altitude suspended pole. The design of the first pole and the second pole is detachable, which reduces the space occupied by the vehicle and improves the convenience of transportation.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A grounding device for easy separation of suspended poles at high altitudes is provided, comprising three insulating poles, three conductor end clamps, and a grounding end clamp. Each insulating pole includes a first pole body and a second pole body, connected to the first pole body via a first locking assembly. The first locking assembly includes a conical sleeve connected to the upper end of the second pole body and fitted around the outer periphery of the first pole body, and a compression sleeve threaded to the outer periphery of the conical sleeve. The end of the conical sleeve has several clamping plates extending axially along the conical sleeve and inclined towards the axis of the conical sleeve. The end of the compression sleeve has a compression portion extending inclined towards the axis, which can compress the clamping plates to hold the outer periphery of the first pole body to lock the axial position of the first and second pole bodies. The three conductor end clamps are correspondingly disposed on the upper ends of the three first pole bodies, and are used to clamp the three-phase power conductors. The grounding end clamp is connected to the three conductor end clamps via grounding conductors, and is used to clamp the grounding source.

[0006] In one possible implementation, the outer peripheral wall of the first rod is provided with a circumferentially extending annular groove, and the upper edge of the clamping plate can enter the annular groove under the extrusion of the extrusion section.

[0007] In one possible implementation, a first clamping opening with an opening facing one side edge is provided through one side of the wire end clamp. A first clamping block is slidably connected to the inner wall of the first clamping opening along the axial direction of the first rod. The first rod extends into the first clamping opening and is threadedly connected to the wire end clamp. The upper end of the first rod is rotatably connected to the first clamping block.

[0008] In some embodiments, a polygonal groove is provided on the lower end face of the first rod, and a receiving groove is provided on the upper end face of the second rod. A polygonal insert is provided on the inner bottom wall of the receiving groove to engage with the polygonal groove.

[0009] In one possible implementation, the grounding conductor includes three branches, a junction box, and a main bus. One end of each of the three branches is connected to a clamp on one of the three conductor ends, and the other end is connected to the junction box. One end of the main bus is connected to a clamp on the grounding end, and the other end is connected to the junction box.

[0010] In some embodiments, a first connector is provided at the end of the bus furthest from the grounding clamp, and the first connector is connected to the converging head via a second locking assembly.

[0011] In some embodiments, a first copper lug is provided at one end of the bus near the grounding clamp, and the first copper lug is connected to the grounding clamp via a first bolt assembly.

[0012] In some embodiments, a second copper lug is connected to the conductor end clamp via a second bolt assembly, a second connector is connected to the second copper lug, and a third connector is connected to the end of the branch line near the conductor end clamp. The second connector and the third connector are connected by a third locking assembly.

[0013] In some embodiments, a second clamping opening with an opening facing one side edge is provided through one side of the grounding terminal clamp, and a second clamping block is slidably connected to the inner side wall of the second clamping opening in the vertical direction. A screw extending upward into the second clamping opening is threadedly connected to the bottom of the grounding terminal clamp, and the screw is rotatably connected to the second clamping block.

[0014] In one possible implementation, an insulating sleeve is fitted onto the lower outer peripheral wall of the second rod.

[0015] The grounding device for easy separation of high-altitude suspended poles provided in this embodiment, compared with the prior art, allows the first pole and the second pole to be separated when transportation is required by loosening the compression sleeve and releasing the clamping plate. The detachable design of the first and second poles reduces the space occupied by the vehicle and improves the convenience of transportation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A partial cross-sectional view of the grounding device for easy separation of high-altitude suspended poles provided in this embodiment of the utility model; Figure 2 This is an embodiment of the present utility model. Figure 1 A magnified schematic diagram of the local structure at point I; Figure 3 This is an embodiment of the present utility model. Figure 1 A magnified schematic diagram of the local structure at point II; Figure 4 This is an embodiment of the present utility model. Figure 1 A magnified schematic diagram of the structure at point III.

[0018] The following are the labeling elements in the figure: 10. Insulating rod; 11. First rod body; 111. Annular groove; 112. Polygonal groove; 12. Second rod body; 121. Receiving groove; 122. Polygonal insert; 20. First locking assembly; 21. Conical sleeve; 22. Extrusion sleeve; 23. Tightening plate; 24. Extrusion part; 30. Wire end clamp; 31. First clamping opening; 32. First clamping block; 40. Grounding end clamp; 41. Second clamping opening; 42. Second clamping block; 43. Screw; 50. Grounding wire; 51. Branch line; 52. Converging head; 53. Main line; 60. First connector; 61. Second locking assembly; 70. First copper lug; 71. First bolt assembly; 80. Second copper lug; 81. Second bolt assembly; 82. Second connector; 83. Third connector; 84. Third locking assembly; 90. Insulating sleeve. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a number" means two or more, unless otherwise explicitly specified.

[0021] The vertical direction mentioned throughout the text is Figure 1 The direction indicated by the middle arrow.

[0022] During the construction, inspection, and maintenance of power systems, grounding devices are crucial equipment for ensuring the safety of workers. Their function is to reliably ground equipment during power outages, preventing electric shock accidents caused by accidental power restoration or sudden surges in induced current. A grounding device typically consists of four parts: three conductor end clamps, one grounding end clamp, three insulating rods, and a grounding conductor.

[0023] The three insulating rods are connected to the three conductor end clamps one by one, and the three conductor end clamps are connected to the grounding end clamp through the grounding wire.

[0024] The three conductor end clamps are used to clamp the three-phase power conductors (phase A, phase B, and phase C), i.e., the three live wires. The grounding end clamp is used to clamp the grounding source (grounding flat iron, grounding flat iron, grounding down conductor of iron tower or pole, temporary grounding stake, and special grounding terminal or bolt).

[0025] Traditional grounding devices often employ an integrated structure where an insulating rod is fixedly connected to the conductor end clamp. The insulating rod itself is also an integrated structure, which presents significant drawbacks in transportation and storage. Because the insulating rod is typically several meters or even longer to ensure a safe and effective insulation distance, this rigid, integrated design results in a bulky and inflexible form, requiring considerable space in the vehicle during transport.

[0026] Please see Figures 1 to 4The present invention provides a detachable grounding device for high-altitude suspended utility poles. The detachable grounding device for high-altitude suspended utility poles includes three insulating rods 10, three conductor end clamps 30, and a grounding end clamp 40. Each insulating rod 10 includes a first rod body 11 and a second rod body 12. The first rod body 11 and the second rod body 12 are connected by a first locking assembly 20. The first locking assembly 20 includes a conical sleeve 21 connected to the upper end of the second rod body 12 and sleeved around the outer periphery of the first rod body 11, and a compression sleeve 22 threadedly connected to the outer periphery of the conical sleeve 21. The end of the conical sleeve 21 has several segments extending axially along the conical sleeve 21 and tapering towards the cone. The sleeve 21 has an inclined clamping plate 23 on one side of its axis. The end of the compression sleeve 22 is provided with a compression part 24 extending inclined towards the axis. The compression part 24 can compress the clamping plate 23 to hug the outer periphery of the first rod 11 to lock the axial position of the first rod 11 and the second rod 12. Three conductor end clamps 30 are respectively arranged on the upper end of the three first rods 11. The three conductor end clamps 30 are used to clamp the three-phase power conductors respectively. The grounding end clamp 40 is connected to the three conductor end clamps 30 through the grounding conductor 50 and is used to clamp the grounding source.

[0027] This application provides a detachable grounding device for high-altitude suspended poles. In actual use, the three detachable insulating poles 10 solve the problem of inconvenience in transporting, storing and carrying long insulating poles 10, making it particularly suitable for use in complex terrain and space-constrained work sites.

[0028] The first locking component 20 is designed to enable quick and secure connection and quick separation between the first rod 11 and the second rod 12. It is simple to operate, saves time and effort, and improves work efficiency.

[0029] The three-phase power conductors are clamped by three conductor end clamps 30 respectively, and are uniformly connected to the grounding end clamp 40 through the grounding conductor 50. This ensures that the three-phase power conductors are reliably short-circuited and grounded, effectively preventing electric shock accidents caused by accidental power supply or induced electricity, and ensuring personnel safety.

[0030] The insulating pole 10 provides the necessary safety distance and insulation strength, allowing operators to work from a safe location on the ground or tower, avoiding direct contact with high-voltage conductors.

[0031] The process of using it is as follows: select a suitable working location and confirm that the grounding source (such as a grounding stake) has been reliably set up.

[0032] Insert the lower end of the first rod 11 into the conical sleeve 21 at the upper end of the second rod 12, and then tighten the compression sleeve 22. When the compression sleeve 22 moves down, its compression part 24 will force the clamping plate 23 at the conical end to contract inward, tightly gripping the first rod 11, thereby firmly locking the two rod sections.

[0033] Secure the grounding terminal clamp 40 to the grounding source reliably.

[0034] The operator holds the assembled insulating rod 10 and approaches and clamps the conductor end clamp 30 one by one onto the corresponding high-voltage conductor. The three insulating rods 10 can be operated independently, providing high flexibility.

[0035] Ensure all clamps are secure and the grounding wire 50 is connected correctly.

[0036] After the operation is completed, proceed in reverse order: first, use the insulating rod 10 to remove the wire end clamps 30 one by one, then loosen the squeezing sleeve 22 to loosen the clamping plate 23, which will separate the first rod body 11 and the second rod body 12. Finally, retract the grounding end clamp 40.

[0037] The grounding device for easy separation of high-altitude suspended poles provided in this embodiment, compared with the prior art, allows the first pole 11 and the second pole 12 to be separated when transportation is required by loosening the squeezing sleeve 22 and releasing the clamping plate 23. The detachable design of the first pole 11 and the second pole 12 reduces the space occupied by the vehicle and improves the convenience of transportation.

[0038] In one possible implementation, the first rod 11 described above adopts the following... Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The outer peripheral wall of the first rod 11 is provided with a circumferentially extending annular groove 111, and the upper edge of the clamping plate 23 can enter the annular groove 111 under the extrusion of the extrusion part 24.

[0039] Specifically, the annular groove 111 provides a clear locking position for the clamping plate 23, preventing it from sliding axially under force, making the locking more secure and reliable, and increasing its tensile strength.

[0040] During the tightening of the compression sleeve 22, the operator continuously applies torque until a significant increase in resistance is felt, indicating that the upper edge of the clamping plate 23 has successfully engaged in the annular groove 111 of the first rod 11. At this point, tightening can be stopped, and the connection is complete.

[0041] In one possible implementation, the aforementioned conductor end clamp 30 adopts as follows: Figure 1 The structure shown is described in the following document. Figure 1 One side of the wire end clamp 30 is provided with a first clamping opening 31 with the opening facing one side edge. A first clamping block 32 is slidably connected to the inner side wall of the first clamping opening 31 along the axial direction of the first rod 11. The first rod 11 extends into the first clamping opening 31 and is threadedly connected to the wire end clamp 30. The upper end of the first rod 11 is rotatably connected to the first clamping block 32.

[0042] Specifically, the first clamping block 32, which is slidably connected by the first rod 11, can accommodate wires of different diameters, ensuring that the clamping surface has sufficient contact area with the surface of the three-phase power wire.

[0043] By utilizing the self-locking properties and labor-saving principle of the thread, a huge clamping force can be generated at the far end by rotating the insulating rod 10, ensuring good contact between the wire end clamp 30 and the three-phase power wire and reducing contact resistance.

[0044] The operator inserts the first clamp 31 of the conductor end clamp 30 into the three-phase power conductor and then rotates the entire insulating rod 10. Since the first rod body 11 is threadedly connected to the conductor end clamp 30, rotation causes the first rod body 11 to rotate relative to the clamp body and move upwards. Because the upper end of the first rod body 11 is rotatably connected to the first clamp block 32, it does not cause the first clamp block 32 to rotate, but instead pushes the first clamp block 32 to slide upwards, thereby engaging with the inner wall of the fixed first clamp 31 and firmly clamping the three-phase power conductor.

[0045] In some embodiments, see Figure 2 The lower end face of the first rod 11 is provided with a polygonal groove 112, and the upper end face of the second rod 12 is provided with a receiving groove 121. The inner bottom wall of the receiving groove 121 is provided with a polygonal plug 122 that is inserted and matched with the polygonal groove 112.

[0046] Specifically, the cooperation between the polygonal slot 112 and the polygonal insert 122 achieves circumferential positioning when the first and second rods 12 are connected. When operating the wire end clamp 30 (which requires rotating the first rod 11), the second rod 12 can be rotated directly, making it easier for ground operators to hold the rod stably.

[0047] The irregular plug-in structure can quickly guide the alignment of the two rod sections, facilitating initial assembly.

[0048] In one possible implementation, the aforementioned grounding conductor 50 adopts, as shown in... Figure 1 The structure shown is described in the following document. Figure 1 The grounding conductor 50 includes three branch lines 51, a junction box 52, and a main line 53. One end of each of the three branch lines 51 is connected to one of the three conductor end clamps 30, and the other end is connected to the junction box 52. One end of the main line 53 is connected to the grounding end clamp 40, and the other end is connected to the junction box 52.

[0049] Specifically, the three branch lines 51 are combined into a single bus 53 by the junction head 52, which avoids the problem of multiple wires being tangled and inconvenient to drag, making the device easier to manage and store.

[0050] Compared to the three branch lines 51 directly connecting to the grounding clamp 40, this design reduces the number of connection points of the grounding clamp 40, simplifying the final step of the operation.

[0051] In some embodiments, see Figure 1 and Figure 4 The end of the bus 53 away from the grounding clamp 40 is provided with a first connector 60, and the first connector 60 is connected to the converging head 52 through the second locking assembly 61.

[0052] Specifically, the first connector 60 and the second locking assembly 61 enable quick connection and disconnection of the bus 53 and the converging head 52, further improving installation and disassembly efficiency.

[0053] Furthermore, the structure of the second locking component 61 is the same as that of the first locking component 20, and will not be described in detail here.

[0054] In some embodiments, see Figure 1 The bus 53 is provided with a first copper nose 70 at one end near the grounding terminal clamp 40, and the first copper nose 70 is connected to the grounding terminal clamp 40 through a first bolt assembly 71.

[0055] Specifically, the first copper nose 70 (copper terminal block) and bolt assembly provide a large-area, low-resistance, high-mechanical-strength electrical connection point, ensuring that short-circuit current can pass safely without overheating and melting due to poor contact.

[0056] It adopts standard copper lugs and bolt crimping method, which ensures reliable connection and complies with electrical safety specifications.

[0057] In some embodiments, see Figure 1 and Figure 3 A second copper lug 80 is connected to the conductor end clamp 30 via a second bolt assembly 81. A second connector 82 is connected to the second copper lug 80. A third connector 83 is connected to one end of the branch line 51 near the conductor end clamp 30. The second connector 82 and the third connector 83 are connected by a third locking assembly 84.

[0058] Specifically, the second connector 82 and the third connector 83 are connected by the third locking assembly 84, and the first connector 60 and the converging head 52 are connected by the second locking assembly 61. This allows the branch line 51 and the main line 53 to be directly unlocked when other lengths or specifications need to be changed, eliminating the cumbersome process of disassembling the first bolt assembly 71 and the second bolt assembly 81 and improving the convenience of disassembly.

[0059] It also uses quick connectors, which facilitates the rapid assembly and connection of various components on the job site.

[0060] Furthermore, the structure of the third locking component 84 is the same as that of the first locking component 20, and will not be described in detail here.

[0061] In some embodiments, see Figure 1 The grounding clamp 40 has a second clamping opening 41 with an opening facing one side edge through it. A second clamping block 42 is slidably connected to the inner wall of the second clamping opening 41 in the vertical direction. The bottom of the grounding clamp 40 is threadedly connected to a screw 43 that extends upward into the second clamping opening 41. The screw 43 is rotatably connected to the second clamping block 42.

[0062] Specifically, the grounding terminal clamp 40 adopts a driving structure similar to that of the conductor terminal clamp 30, which can firmly clamp grounding sources of different shapes and sizes (such as grounding flat iron, grounding ring, and grounding stake) to ensure the reliability of the grounding circuit.

[0063] Engage the second clamping jaw 41 of the grounding terminal clamp 40 onto the grounding source, and then rotate the screw 43 of the grounding terminal clamp 40. The screw 43 pushes the second clamping block 42 to move, thereby engaging with the inner wall of the fixed second clamping jaw 41 to firmly clamp the grounding source.

[0064] In one possible implementation, the second rod 12 described above adopts the following... Figure 1 The structure shown is described in the following document. Figure 1 An insulating sleeve 90 is fitted on the lower outer peripheral wall of the second rod 12.

[0065] Specifically, the insulating sleeve 90 increases the friction of the hand grip, making the operator's grip more secure and comfortable, especially in humid weather.

[0066] It provides an additional layer of insulation protection, further increasing the safety of operators.

[0067] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grounding device that is easy to detach from a high-altitude suspended pole, characterized in that, include: Three insulating rods, each rod comprising a first rod body and a second rod body, the first rod body and the second rod body being connected by a first locking assembly. The first locking assembly includes a conical sleeve connected to the upper end of the second rod body and fitted around the outer periphery of the first rod body, and a compression sleeve threaded to the outer periphery of the conical sleeve. The end of the conical sleeve is provided with a plurality of clamping plates extending axially along the conical sleeve and inclined toward the axis of the conical sleeve. The end of the compression sleeve is provided with a compression portion extending inclined toward the axis. The compression portion can compress the clamping plates to clamp tightly around the outer periphery of the first rod body to lock the axial position of the first rod body and the second rod body. Three conductor end clamps are respectively set on the upper end of the three first rods, and the three conductor end clamps are used to clamp the three-phase power conductors respectively. as well as The grounding terminal clamp is connected to the three wire terminal clamps respectively via a grounding conductor, and is used to clamp the grounding source.

2. The grounding device for easy separation from high-altitude suspended poles as described in claim 1, characterized in that, The outer peripheral wall of the first rod is provided with a circumferentially extending annular groove, and the upper edge of the clamping plate can enter the annular groove under the compression of the extrusion part.

3. The grounding device for easy separation from high-altitude suspended poles as described in claim 1, characterized in that, The wire end clamp has a first clamping opening through one side, with the opening facing one side edge. A first clamping block is slidably connected to the inner side wall of the first clamping opening along the axial direction of the first rod. The first rod extends into the first clamping opening and is threadedly connected to the wire end clamp. The upper end of the first rod is rotatably connected to the first clamping block.

4. The grounding device for easy separation from high-altitude suspended poles as described in claim 2, characterized in that, The lower end face of the first rod is provided with a polygonal groove, and the upper end face of the second rod is provided with a receiving groove. The inner bottom wall of the receiving groove is provided with a polygonal plug that is inserted and matched with the polygonal groove.

5. The grounding device for easy separation of high-altitude suspended poles as described in claim 1, characterized in that, The grounding conductor includes three branch lines, a junction box, and a main line. One end of each of the three branch lines is connected to one of the three conductor end clamps, and the other end is connected to the junction box. One end of the main line is connected to the grounding end clamp, and the other end is connected to the junction box.

6. The grounding device for easy separation of high-altitude suspended poles as described in claim 5, characterized in that, The bus is provided with a first connector at the end away from the grounding terminal clamp, and the first connector is connected to the converging head through a second locking assembly.

7. The grounding device for easy separation from high-altitude suspended poles as described in claim 6, characterized in that, The bus is provided with a first copper lug at one end near the grounding terminal clamp, and the first copper lug is connected to the grounding terminal clamp by a first bolt assembly.

8. The grounding device for easy separation of high-altitude suspended poles as described in claim 5, characterized in that, A second copper lug is connected to the conductor end clamp via a second bolt assembly, and a second connector is connected to the second copper lug. A third connector is connected to one end of the branch line near the conductor end clamp, and the second connector and the third connector are connected by a third locking assembly.

9. The grounding device for easy separation from high-altitude suspended poles as described in claim 7, characterized in that, The grounding clamp has a second clamping opening through one side, with the opening facing one side edge. A second clamping block is slidably connected to the inner wall of the second clamping opening in the vertical direction. The bottom of the grounding clamp is threadedly connected to a screw extending upward into the second clamping opening. The screw is rotatably connected to the second clamping block.

10. The grounding device for easy separation from high-altitude suspended poles as described in claim 1, characterized in that, An insulating sleeve is fitted onto the lower outer peripheral wall of the second rod.

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