A spiral grounding wire

Abstract

The present invention relates to the field of grounding wire technology, and more particularly to a spiral grounding wire comprising an insulating outer tube and a conductive fixing clamp fixed to the top of the insulating outer tube. The insulating outer tube is slidably engaged with a movable clamp that can move toward or away from the fixing clamp. The insulating outer tube is slidably connected to an adjustment assembly for controlling the movement of the movable clamp, and the adjustment assembly is provided with a locking assembly for securing the movable clamp. The present invention utilizes an adjustment assembly to control the movement of the movable clamp and a locking assembly to secure the movable clamp, enabling faster adjustment of the movable clamp and providing a very secure fixation of the movable clamp, thereby improving the speed and quality of wire grounding.

Description

Technical Field

[0001] The present application relates to the technical field of grounding wires, and in particular to a spiral grounding wire. Background Art

[0002] As my country's power engineering technology continues to improve, the application of spiral, rotatable grounding wires is also evolving. Currently, 10kV, 110kV, and 220kV substations mostly use flat-end spiral grounding wires. While this type of grounding wire offers a secure clamping mechanism, the clamp is directly attached to the spiral structure. When the grounding wire is installed and tightened, the clamp rotates in the same direction as the spiral, making it difficult to install the grounding wire.

[0003] When staff conduct a power outage inspection on a section of a substation line, they need to disconnect the power to that section of the line. To further ensure the personal safety of the staff, multiple temporary grounding wires need to be hung at both ends of the inspection line. A typical grounding wire includes an insulating tube and a clamping device set at the top of the insulating tube for clamping the wire. The insulating rod includes a sleeve and an inner rod threadedly connected to the sleeve. The clamping device includes a fixed part set on the sleeve and a movable part set on the inner rod. When in use, the inner rod is rotated to clamp the wire. However, the clamping device is adjusted by a threaded connection. The thread stroke is long, the adjustment efficiency is low, and it is very cumbersome to use. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present application is that the clamping device of the general grounding wire adopts a threaded connection for adjustment, the thread stroke is long, the adjustment efficiency is low, and it is very troublesome to use.

[0005] In order to solve the above-mentioned technical problems, an embodiment of the present application provides a spiral grounding wire, which adopts the following technical solution: it includes an insulating outer tube and a conductive fixed clamp fixed to the top of the insulating outer tube, the insulating outer tube is slidably connected to a movable clamp that can move closer to or away from the fixed clamp, the sliding connection of the insulating outer tube is provided with an adjustment component for controlling the movement of the movable clamp, and the adjustment component is provided with a locking component for fixing the movable clamp.

[0006] Furthermore, the adjustment assembly includes an inner rod arranged in an insulating outer cylinder, a connecting rod fixed at the top end of the inner rod, and a threaded rod fixed at the top end of the connecting rod. The movable clamp and the part located in the insulating outer cylinder are slidably engaged with a sliding sleeve, the sliding sleeve is slidably engaged with the insulating sleeve, the sliding sleeve is provided with a retaining ring, the connecting rod is provided with a ring groove, the retaining ring is engaged with the ring groove, and the connecting rod can rotate in the retaining ring.

[0007] Furthermore, the locking assembly includes a locking block movably arranged on the sliding sleeve, a locking groove arranged on the inner wall of the insulating outer tube and engaged with the locking block, a locking member arranged on the sliding sleeve and used to control the locking block to be inserted into the locking groove, and an unlocking member used to control the locking block to be separated from the locking groove.

[0008] Furthermore, the plurality of locking grooves are ratchet grooves arranged axially and obliquely upward along the insulating outer cylinder, the side wall of the sliding sleeve is provided with a mounting groove, the locking block is hinged to the mounting groove, the locking block includes a locking end that is snap-fitted with the ratchet groove, the locking member is an elastic member, the elastic member is installed in the mounting groove, the end of the elastic member away from the mounting groove is connected to the locking end, and when the elastic member is in a natural state, the locking end abuts the bottom of the ratchet groove.

[0009] Furthermore, the locking block includes an unlocking end away from the locking end, the unlocking end is located in the sliding sleeve, and the unlocking piece is arranged on the outer wall of the connecting rod. Rotating the connecting rod can make the unlocking piece abut the unlocking end. When the unlocking end abuts the unlocking piece, the locking end can be disengaged from the ratchet groove.

[0010] Furthermore, the unlocking member is a guide plate obliquely arranged on the outer wall of the connecting rod in the shape of a propeller blade, the inclination direction of the guide plate is opposite to the inclination direction of the thread line, the top end of the guide plate is higher than the unlocking end, and the unlocking end is provided with an inclined surface, and the inclination direction of the inclined surface is the same as the inclination direction of the guide plate.

[0011] Furthermore, the fixed clamp is L-shaped and includes a supporting portion connected to the insulating outer tube and a first clamping portion fixed at the top of the supporting portion, and the bottom end of the first clamping portion is provided with a first anti-slip groove; the movable clamp is L-shaped and includes a sliding portion that is slidably engaged with the insulating outer tube and a second clamping portion fixed at the top of the sliding portion and abuts against the clamping portion, and the top end of the second clamping portion is provided with a second anti-slip groove.

[0012] Furthermore, a clamping protrusion is provided on the outer wall of the sliding portion along the axial direction of the sliding portion, a limiting plate is provided on the top end of the insulating outer cylinder, and a limiting hole is provided on the limiting plate to slide with the sliding portion.

[0013] Furthermore, the insulating outer cylinder is a detachably connected extension component.

[0014] Furthermore, the extension component includes an extension outer cylinder and an extension rod, the extension outer cylinder is threadedly connected to the insulating outer cylinder, and the extension rod is located in the extension outer cylinder and threadedly connected to the adjustment component.

[0015] Compared with the prior art, the embodiments of the present application have the following main beneficial effects: the present invention adopts an adjustment component to control the movement of the movable clamp and adopts a locking component to fix the movable clamp, which can adjust the movable clamp more quickly and fix the movable clamp very firmly, thereby improving the speed and quality of wire grounding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the internal structure of an embodiment of the present application;

[0019] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0020] Figure 4 This is a cross-sectional view of an extension component according to an embodiment of the present application.

[0021] Explanation of reference numerals: 10, fixed clamp; 11, supporting portion; 12, first clamping portion; 13, first anti-slip groove; 20, movable clamp; 21, second clamping portion; 22, second anti-slip groove; 23, sliding portion; 24, clamping protrusion; 30, insulating outer cylinder; 31, first clamping groove; 32, ratchet groove; 33, limiting plate; 331, limiting hole; 34, first internal thread; 41, internal rod; 411, third internal thread; 42, connecting rod; 421 , annular groove; 43, threaded rod; 44, sliding sleeve; 441, retaining ring; 443, second retaining groove; 444, mounting groove; 50, locking assembly; 51, locking block; 511, locking end; 512, unlocking end; 513, inclined plane; 52, unlocking member; 53, elastic member; 60, extension assembly; 61, extended outer cylinder; 611, first external thread; 612, second internal thread; 62, extension rod; 621, second external thread; 622, fourth internal thread. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0023] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0025] Example

[0026] like Figure 1 As shown, a spiral grounding wire includes an insulating outer tube 30 and a conductive fixing clamp 10 fixed to the top of the insulating outer tube 30. The insulating outer tube 30 is slidably connected to a movable clamp 20 that can move closer to or away from the fixing clamp 10. The sliding connection of the insulating outer tube 30 is connected to an adjustment component (not marked in the figure) for controlling the movement of the movable clamp 20. The adjustment component is provided with a locking component 50 (see FIG. 5 ) for fixing the movable clamp 20. Figure 3 During operation, the fixed clamp 10 is first hung on the wire, and then the movable clamp 20 is controlled to move upward by the adjustment component so that the fixed clamp 10 and the movable clamp 20 clamp the wire. Then, the movable clamp 20 is fixed by the locking component 50. A wire is connected to the fixed clamp 10 for grounding. The present invention uses the adjustment component to control the movement of the movable clamp 20 and the locking component 50 to fix the movable clamp 20. This allows for faster adjustment of the movable clamp 20 and a very firm fixation of the movable clamp 20, thereby improving the speed and quality of wire grounding.

[0027] like Figure 1 and Figure 2As shown, the fixed clamp 10 is L-shaped and includes a support portion 11 connected to the insulating outer tube 30 and a first clamping portion 12 fixed at the top of the support portion 11, and the bottom end of the first clamping portion 12 is provided with a first anti-slip groove 13; the movable clamp 20 is L-shaped and includes a sliding portion 23 that is slidably engaged with the insulating outer tube 30 and a second clamping portion 21 that is fixed at the top of the sliding portion 23 and abuts against the clamping portion, and the top end of the second clamping portion 21 is provided with a second anti-slip groove 22. Specifically, the fixed clamp 10 and the movable clamp 20 are both made of conductive materials. The first clamping part 12 is bent upward, which makes it convenient to hang the first clamping part 12 on the wire. The second clamping part 21 is concavely adapted to the first clamping part 12, and the second anti-slip groove 22 of the second clamping part 21 is recessed downward. When the wire is clamped between the first anti-slip groove 13 and the second anti-slip groove 22, it is not easy to separate from the first clamping part 12 and the second clamping part 21.

[0028] Preferably, the outer wall of the sliding portion 23 is provided with a snap-fitting protrusion 24 along the axial direction of the sliding portion 23. A limit plate 33 is provided at the top end of the insulating outer cylinder 30. The limit plate 33 defines a limit hole 331 that slidably engages with the sliding portion 23. The sliding portion 23 can slide along the limit hole 331 but cannot rotate relative to the insulating outer sleeve, thereby facilitating adjustment of the movable clamp 20 and preventing the adjustment assembly from separating from the insulating outer sleeve.

[0029] like Figure 3 As shown, the adjustment assembly includes an inner rod 41 arranged in the insulating outer cylinder 30, a connecting rod 42 fixed at the top of the inner rod 41, and a threaded rod 43 fixed at the top of the connecting rod 42. The movable clamp 20 and the part located in the insulating outer cylinder 30 are slidably engaged with a sliding sleeve 44. The sliding sleeve 44 is slidably engaged with the insulating sleeve. The sliding sleeve 44 is provided with a snap ring 441, and the connecting rod 42 is provided with a ring groove 421. The snap ring 441 is engaged with the ring groove 421, and the connecting rod 42 can rotate in the snap ring 441. Specifically, the inner wall of the insulating outer cylinder 30 is provided with a first card groove 31 along its axial direction, the outer wall of the sliding sleeve 44 is provided with a first protrusion (not shown in the figure) that is slidably engaged with the first card groove 31, and the inner wall of the sliding sleeve 44 is provided with a second card groove 443 along its axial direction. The engaging protrusion 24 is slidably engaged with the second card groove 443. A threaded hole is provided at the bottom of the sliding part 23, and the threaded rod 43 is threadedly connected to the threaded hole. Rotating the inner rod 41 can make the sliding part 23 move upward or downward relative to the limit plate 33.

[0030] like Figure 3As shown, the locking assembly 50 includes a locking block 51 movably arranged on the sliding sleeve 44, a locking groove arranged on the inner wall of the insulating outer tube 30 and engaged with the locking block 51, a locking member arranged on the sliding sleeve 44 and used to control the locking block 51 to be engaged in the locking groove, and an unlocking member 52 for controlling the locking block 51 to be disengaged from the locking groove. Specifically, the plurality of locking grooves are ratchet grooves 32 arranged axially and tilted upward along the insulating outer cylinder 30. The sidewall of the sliding sleeve 44 is provided with a mounting groove 444. The locking block 51 is hingedly connected to the mounting groove 444. The locking block 51 includes a locking end 511 that engages with the ratchet groove 32. The locking member is an elastic member 53, which can be a spring or a spring plate. Here, a spring plate is used for installation. The elastic member 53 is installed in the mounting groove 444. The end of the elastic member 53 away from the mounting groove 444 is connected to the locking end 511. When the elastic member 53 is in a natural state, the locking end 511 abuts the bottom of the ratchet groove 32. In this embodiment, the locking groove is a ratchet groove 32, which is tilted upward. When the inner rod 41 is pushed upward, the locking end 511 can slide upward along the ratchet groove 32. Under the action of the elastic member 53, the locking end 511 can be stuck in the ratchet groove 32, making it difficult for the inner rod 41 to slide down. During the specific operation, the fixed clamp 10 is hung on the wire, and then the inner tube is pushed upward to make the movable clamp 20 abut against the wire, and then the inner rod 41 is rotated to make the sliding part 23 move upward relative to the limit plate 33, so that the fixed clamp 10 and the movable clamp 20 clamp the wire.

[0031] like Figure 3As shown, the locking block 51 includes an unlocking end 512 away from the locking end 511. The unlocking end 512 is located within the sliding sleeve 44. The unlocking member 52 is disposed on the outer wall of the connecting rod 42. Rotating the connecting rod 42 causes the unlocking member 52 to abut against the unlocking end 512. When the unlocking end 512 abuts against the unlocking member 52, the locking end 511 can be disengaged from the ratchet groove 32. Specifically, the unlocking member 52 is a propeller-blade-shaped guide plate obliquely disposed on the outer wall of the connecting rod 42. The inclination direction of the guide plate is opposite to the inclination direction of the thread line. The top of the guide plate is higher than the unlocking end 512. The unlocking end 512 is provided with an inclined surface 513, and the inclination direction of the inclined surface 513 is the same as that of the guide plate. As shown in the figure, when the threaded rod 43 rotates from left to right, the threaded rod 43 disengages from the threaded hole, the sliding portion 23 moves upward relative to the sliding sleeve 44, and the upper end surface of the guide plate first contacts the unlocking end 512. Since the guide plate is in the shape of a propeller blade, the unlocking end 512 slides from the bottom end of the guide plate to the top end of the guide plate relative to the guide plate. After the unlocking end 512 slides a distance to the middle of the guide plate, it can flip over the guide plate. At this time, the locking end 511 has not disengaged from the ratchet groove 32. Therefore, after completing the first clamping portion 12 and the second When the clamping portion 21 clamps the wire, the movable clamp 20 does not slide down. When the threaded rod 43 rotates from right to left, it enters the threaded hole, causing the sliding portion 23 to move downward relative to the sliding sleeve 44. The lower end surface of the guide plate first contacts the unlocking end 512, which then slides relative to the guide plate from the upper end to the lower end. When the unlocking end 512 slides to the lower end of the guide plate, the locking end 511 disengages the ratchet groove 32, allowing the sliding sleeve 44 to slide relative to the insulating outer cylinder 30. The locking device of the present invention can complete the locking and unlocking processes by changing the rotation direction of the inner rod 41, thereby improving the grounding speed of the wire.

[0032] like Figure 4As shown, to accommodate wires of varying heights, the insulating outer cylinder 30 is detachably connected to an extension assembly 60. The extension assembly 60 comprises an extension outer cylinder 61 and an extension rod 62. The extension outer cylinder 61 is threadedly connected to the insulating outer cylinder 30, and the extension rod 62 is located within the extension outer cylinder 61 and threadedly connected to the adjustment assembly. Specifically, the bottom end of the insulating outer cylinder 30 is provided with a first internal thread 34, one end of the extension outer cylinder 61 is provided with a first external thread 611 threadedly connected to the first internal thread 34, and the other end of the extension outer cylinder 61 is provided with a second internal thread 612. The first external thread 611 and the second internal thread 612 between the two extension outer cylinders 61 are threadably adapted. The bottom end of the inner rod 41 is provided with a third internal thread 411, one end of the extension rod 62 is provided with a second external thread 621 threadedly connected to the third internal thread 411, and the other end of the extension rod 62 is provided with a fourth internal thread 622, and the second external thread 621 between the two extension rods 62 is threadably adapted to the fourth internal thread 622.

[0033] Working principle:

[0034] Wiring process: first hang the fixed clamp 10 on the wire, then push the inner tube upward to make the movable clamp 20 abut the wire, and then rotate the inner rod 41 to make the sliding part 23 move upward relative to the limit plate 33, so that the fixed clamp 10 and the movable clamp 20 clamp the wire; Disassembly process: rotate the inner rod 41 in the opposite direction so that the cut surface of the unlocking end 512 abuts the lower end surface of the guide plate. At this time, the locking end 511 disengages from the ratchet groove 32, and then pull the inner rod 41 downward to make the movable clamp 20 away from the wire, and finally remove the fixed clamp 10.

[0035] To sum up, the present invention adopts an adjustment component to control the movement of the movable clamp 20, and adopts a locking component 50 to fix the movable clamp 20. By changing the rotation direction of the inner rod 41, the locking and unlocking process can be completed, thereby adjusting the movable clamp 20 more quickly, and the movable clamp 20 is also fixed very firmly, thereby improving the speed and quality of wire grounding.

[0036] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.

Claims

1. A spiral grounding wire comprising an insulating outer tube and a conductive fixing clamp fixed to the top of the insulating outer tube, characterized in that: The insulating outer cylinder is slidably connected to a movable clamp that can move closer to or away from the fixed clamp. The insulating outer cylinder is slidably connected to an adjustment component for controlling the movement of the movable clamp. The adjustment component is provided with a locking component for fixing the movable clamp. The adjustment assembly includes an inner rod disposed in an insulating outer cylinder, a connecting rod fixed to the top end of the inner rod, and a threaded rod fixed to the top end of the connecting rod. The movable clamp located in the insulating outer cylinder is slidably engaged with a sliding sleeve, the sliding sleeve is slidably engaged with the insulating sleeve, the sliding sleeve is provided with a snap ring, and the connecting rod is provided with an annular groove. The snap ring is engaged with the annular groove, and the connecting rod can rotate within the snap ring. The locking assembly includes a locking block movably mounted on the sliding sleeve, a locking groove provided on the inner wall of the insulating outer cylinder and engaging with the locking block, a locking member provided on the sliding sleeve and used to control the locking block to be engaged in the locking groove, and an unlocking member used to control the locking block to be disengaged from the locking groove; The plurality of locking grooves are ratchet grooves arranged axially and obliquely upward along the insulating outer cylinder; the side wall of the sliding sleeve is provided with a mounting groove; the locking block is hingedly connected to the mounting groove; the locking block includes a locking end that is engaged with the ratchet groove; the locking member is an elastic member installed in the mounting groove; the end of the elastic member away from the mounting groove is connected to the locking end; when the elastic member is in a natural state, the locking end abuts against the bottom of the ratchet groove; When the inner rod is pushed upward, the locking end slides upward along the ratchet groove, and under the action of the elastic member, the locking end is stuck in the ratchet groove; The insulating outer cylinder includes a detachably connected extension assembly; the extension assembly includes an extension outer cylinder and an extension rod, the extension outer cylinder is threadedly connected to the insulating outer cylinder, and the extension rod is located inside the extension outer cylinder and threadedly connected to the adjustment assembly; The bottom end of the insulating outer tube is provided with a first internal thread, one end of the extended outer tube is provided with a first external thread threadedly connected to the first internal thread, the other end of the extended outer tube is provided with a second internal thread, and the first external thread between the two extended outer tubes is threadedly adapted to the second internal thread; the bottom end of the inner rod is provided with a third internal thread, one end of the extended rod is provided with a second external thread threadedly connected to the third internal thread, the other end of the extended rod is provided with a fourth internal thread, and the second external thread between the two extended rods is threadedly adapted to the fourth internal thread.

2. A spiral grounding wire according to claim 1, characterized in that: The locking block includes an unlocking end away from the locking end, the unlocking end is located in the sliding sleeve, and the unlocking piece is arranged on the outer wall of the connecting rod. Rotating the connecting rod can make the unlocking piece abut the unlocking end. When the unlocking end abuts the unlocking piece, the locking end can be disengaged from the ratchet groove.

3. A spiral grounding wire according to claim 2, characterized in that: The unlocking member is a guide plate arranged obliquely on the outer wall of the connecting rod in the shape of a propeller blade. The inclination direction of the guide plate is opposite to the inclination direction of the thread line. The top end of the guide plate is higher than the unlocking end. The unlocking end is provided with an inclined surface, and the inclination direction of the inclined surface is the same as that of the guide plate.

4. A spiral grounding wire according to any one of claims 1 to 3, characterized in that: The fixed clamp is L-shaped and includes a support portion connected to the insulating outer tube and a first clamping portion fixed at the top of the support portion, and the bottom end of the first clamping portion is provided with a first anti-slip groove; the movable clamp is L-shaped and includes a sliding portion that is slidably engaged with the insulating outer tube and a second clamping portion fixed at the top of the sliding portion and abuts against the clamping portion, and the top end of the second clamping portion is provided with a second anti-slip groove.

5. The spiral grounding wire according to claim 4, characterized in that: The outer wall of the sliding part is provided with a clamping protrusion along the axial direction of the sliding part, and the top end of the insulating outer cylinder is provided with a limit plate, and the limit plate is provided with a limit hole that is slidably matched with the sliding part.

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