A sliding grounding device

Abstract

The present invention relates to the technical field of grounding devices, and specifically provides a sliding grounding device, which includes a connecting frame. Two connecting hooks are provided at both ends of the connecting frame, and the hook tips of the two connecting hooks face in opposite directions. A grounding cable is arranged between the two connecting hooks, and the grounding cable can be wound around the surface of the cable. Compared with the traditional conductor clip and clamping plate, the contact area between the grounding cable and the cable is greatly increased. At the same time, the helix direction and pitch of the spiral winding of the grounding cable are set to be the same as the helix direction and pitch of the cable surface, further increasing the contact area and making the contact pressure distribution more uniform, thereby effectively reducing the contact resistance, ensuring the stability of the grounding system during the transmission of current, and reducing the energy loss and safety hazards caused by poor contact.

Description

Technical Field

[0001] The present invention relates to the technical field of grounding devices, and particularly to a sliding grounding device. Background Art

[0002] The grounding device is a key component to ensure the safe operation of the power cable system. Its main function is to introduce the abnormal voltage of the cable metal sheath into the ground to prevent personal electric shock and equipment damage.

[0003] For example, Chinese Patent CN117878631B discloses a high-voltage wire grounding device with a locking function. The solution includes a conductor clamp and a grounding clamp. A connecting cable is connected between the conductor clamp and the grounding clamp. The conductor clamp is hung on the high-voltage wire, and the grounding clamp is used for grounding. Clamping plates are slidably installed on both the conductor clamp and the grounding clamp. Through the configuration of a mechanical lock body, a voltmeter, a mounting device, and a locking device, the clamping plate is locked in the mechanical lock body by a lock head, and then the key is pulled out. After installation, the mounting plate is moved so that the clamping frame disengages from the card slot, enabling the insulating rod to disengage from the conductor clamp, thus completing the cable grounding operation.

[0004] However, when the cable is clamped by the conductor clamp and the clamping plate in the above solution, the conductor clamp and the clamping plate can only clamp a part of the surface of the cable, resulting in a large contact resistance of the cable, unstable connection, and unstable conduction. Moreover, when the cable shakes, it will rotate relative to the conductor clamp and the clamping plate, thereby causing wear to the cable and affecting the connection strength. Summary of the Invention

[0005] Based on this, in view of the problems of large contact resistance of the cable and easy wear of the cable when the current grounding device connects the cable, it is necessary to provide a sliding grounding device.

[0006] The above object is achieved by the following technical solutions:

[0007] A sliding grounding device, comprising:

[0008] A connecting frame, with a connecting hook provided at each end of the connecting frame. The two connecting hooks are used to be hung on the cable, and the tip directions of the two connecting hooks are opposite;

[0009] A grounding cable, with both ends of the grounding cable passing through the tips of the two connecting hooks respectively. The part of the grounding cable between the two connecting hooks can surround the outer circumference of the cable;

[0010] A tightening assembly configured to slacken the grounding cable when the grounding cable surrounds the outer circumference of the cable and tighten the grounding cable after the grounding cable surrounds the outer circumference of the cable.

[0011] Furthermore, the two connecting hooks can move closer to or further away from each other, and the part of the grounding cable located between the two connecting hooks is spirally wrapped around the outer circumference of the cable, and the rotation direction and pitch of the spiral wrapping are the same as the rotation direction and pitch of the spiral texture on the surface of the cable. A sensing component is provided at the upper ends of the hook tips of the two connecting hooks, and the sensing component can sense the rotation direction and pitch of the spiral texture on the surface of the cable.

[0012] Furthermore, the sensing component includes a sensing hook, a sensing cone rod and a sliding rod. The sensing hook is fixedly connected to the top of the hook tip of the connecting hook, and the hook tips of the two sensing hooks are facing in the same direction. The sliding rod is fixedly set on the hook tip part of the sensing hook, and the axis of the sliding rod is perpendicular to the plane where the sensing hook is located. The sensing cone rod is slidably set on the sliding rod, and the tip of the sensing cone rod can contact the surface of the cable when the sensing hook is hooked with the cable. The distance that the sensing cone rod slides on the sliding rod is positively correlated with the pitch of the spiral texture on the surface of the cable.

[0013] Furthermore, an elastic member is provided on the sliding rod, one end of the elastic member is connected to the end of the sliding rod, and the other end of the elastic member is connected to the sensing cone rod. The elastic member makes the sensing cone rod located in the middle position of the sliding rod or makes the sensing cone rod tend to return to the middle position of the sliding rod.

[0014] Furthermore, a guide telescopic rod and a threaded column are provided between the connecting frame and the two connecting hooks, the fixed end of the guide telescopic rod is fixed on the connecting frame, the telescopic end of the guide telescopic rod is fixed on the lower part of the connecting hook, one end of the threaded column is rotated on the connecting frame, and the other end of the threaded column is spirally connected to the lower part of the connecting hook.

[0015] Furthermore, the tensioning assembly includes a fixed frame, a power storage gear, a first pulley and a second pulley, the first pulley and the second pulley are rotatably arranged at the lower part of the connecting hook, the grounding cable is clamped between the outer periphery of the first pulley and the second pulley, the fixed frame is fixedly arranged at the lower part of the connecting hook and is located above the second pulley, the power storage gear is rotatably arranged inside the fixed frame, and a power storage groove, a locking groove and a rotation groove are vertically arranged in the fixed frame in sequence, the locking groove is respectively connected to the power storage groove and the rotation groove, the rotating shaft of the power storage gear can be switched among the power storage groove, the locking groove and the rotation groove, and when the rotating shaft of the power storage gear is located in the rotation groove, the power storage gear is meshed with the second pulley.

[0016] Furthermore, the locking groove in the fixed frame is a rectangular groove, the power storage groove and the rotation groove in the fixed frame are both circular grooves, the rotating shaft of the power storage gear is a square shaft, and the size of the square shaft matches the size of the rectangular groove.

[0017] Furthermore, a slider is provided on the fixed frame for vertical sliding, the rotating shaft of the power storage gear passes through the slider and the two can rotate relative to each other, a knob is coaxially and fixedly provided on the rotating shaft of the power storage gear, and a mounting rod is detachably connected to the bottom of the connecting frame, and the mounting rod can pull the slider to slide downward when it is detached from the connecting frame.

[0018] Furthermore, a guide wheel is rotatably provided on the lower part of the connecting hook, and the guide wheel is located above the first pulley. The grounding cable passes around the guide wheel and enters between the first pulley and the second pulley.

[0019] Furthermore, the grounding cable is composed of a plurality of conductive cables, and the plurality of conductive cables are parallel to each other.

[0020] The beneficial effects of the present invention are:

[0021] The present invention adopts a method of wrapping the grounding cable around the cable, which greatly increases the contact area between the grounding cable and the cable compared to the traditional conductor clamp and clamping plate. At the same time, the rotation direction and spacing of the spiral wrapping of the grounding cable are set to be the same as the rotation direction and pitch of the cable surface, further increasing the contact area and making the contact pressure distribution more uniform, thereby effectively reducing the contact resistance, ensuring the stability of the grounding system during the current transmission process, and reducing energy loss and safety hazards caused by poor contact.

[0022] The present invention is capable of sensing the rotation direction and pitch of the spiral texture on the surface of different cables by arranging a sensing component at the upper end of the hook tip of the connecting hook. The operator can adjust the distance between the two connecting hooks through the guide telescopic rod and the threaded column according to the data obtained by the sensing component, so that the pitch of the grounding cable wrapped around the cable surface is the same as the pitch of the spiral texture on the cable surface, and change the rotation direction of the connecting frame to ensure that the rotation direction of the grounding cable is the same as the rotation direction of the cable surface, thereby enhancing the adaptability of the device to different cables.

[0023] The present invention arranges a guide telescopic rod and a threaded column between the connecting frame and the connecting hook, which makes it convenient for the operator to adjust the distance between the connecting hook and the connecting frame. The tensioning component is cleverly designed, and the loosening and tightening operations of the grounding cable are conveniently realized through the coordination of power storage gears, different slots, knobs and other structures. The bottom of the connecting frame is detachably connected to the mounting rod, and a transmission wheel and a toggle wheel are arranged on the mounting rod, which makes it convenient for the operator to rotate the threaded column. The grounding cable can also be automatically tightened by pulling the rope when the mounting rod is removed. The operation is convenient and efficient.

[0024] The grounding cable of the present invention is composed of multiple mutually parallel conductive cables. When tightened, the multiple conductive cables closely adhere to the surface of the cable and are distributed according to a spiral texture, further improving the contact area and connection strength between the cable and the grounding cable. A guiding ring and a guiding wheel are provided on the connection hook to ensure better tightening effect of the grounding cable and more stable and reliable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. is a schematic structural diagram of a sliding grounding device provided by an embodiment of the present invention;

[0026] Figure 2 FIG. is a partial structural diagram of a sliding grounding device provided by an embodiment of the present invention;

[0027] Figure 3 is Figure 2 a cross-sectional view of the sliding grounding device provided by an embodiment in [reference] along A-A;

[0028] Figure 4 FIG. is a partial structural diagram of the sliding grounding device provided by an embodiment of the present invention without connecting the cable;

[0029] Figure 5 is Figure 4 a rear view of the sliding grounding device provided by an embodiment in [reference];

[0030] Figure 6 is Figure 5 a partial view of the induction hook of the sliding grounding device provided by an embodiment in [reference];

[0031] Figure 7 is Figure 6 a cross-sectional view of the induction hook of the sliding grounding device provided by an embodiment in [reference] along B-B;

[0032] Figure 8 is Figure 4 a left view of the sliding grounding device provided by an embodiment in [reference];

[0033] Figure 9 is Figure 8 a cross-sectional view of the sliding grounding device provided by an embodiment in [reference] along C-C;

[0034] Figure 10 is Figure 5 a partial enlarged view of part X of the sliding grounding device provided by an embodiment in [reference];

[0035] Figure 11 is Figure 9 a partial enlarged view of part Y of the sliding grounding device provided by an embodiment in [reference];

[0036] Figure 12This is a state diagram of the sliding grounding device provided by one embodiment of the present invention during installation.

[0037] in:

[0038] 100, connecting frame; 110, protrusion; 120, mounting rod; 130, mounting hole; 140, guide telescopic rod; 150, threaded column; 160, receiving groove; 170, rotating wheel; 180, transmission wheel; 190, toggle wheel;

[0039] 200, connecting hook; 210, upper portion; 220, lower portion; 230, grounding cable; 231, conductive cable; 240, first pulley; 250, second pulley; 260, guide wheel; 270, guide ring;

[0040] 300, fixed frame; 310, power storage gear; 320, rotating shaft; 330, power storage slot; 340, locking slot; 350, rotating slot; 360, slider; 370, knob;

[0041] 400, induction hook; 410, induction cone rod; 420, slide rod; 430, fixing block; 440, elastic member;

[0042] 500. Cable. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0045] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0046] The following will refer to Figures 1 - 12 to describe a sliding grounding device provided by the present invention.

[0047] A sliding grounding device includes a connecting frame 100. Two connecting hooks 200 are provided at both ends of the connecting frame 100. The two connecting hooks 200 are used for hanging on a cable 500. The tip directions of the two connecting hooks 200 are opposite. A grounding cable 230 is provided on the connecting frame 100. The grounding cable 230 is used to connect the cable 500 so as to ground the cable 500. Both ends of the grounding cable 230 respectively pass through the tips of the two connecting hooks 200. A tightening and loosening assembly is provided on the lower parts 220 of the two connecting hooks 200. After both ends of the grounding cable 230 pass through the tips of the connecting hooks 200, they pass through the tightening and loosening assembly. The tightening and loosening assembly can tighten or loosen both ends of the grounding cable 230. The tightening and loosening assembly is configured to make the grounding cable 230 slack during the process that the part of the grounding cable 230 between the two connecting hooks 200 is wound around the outer periphery of the cable 500. After the part of the grounding cable 230 between the two connecting hooks 200 is wound around the outer periphery of the cable 500, the grounding cable 230 is tightened, so that the grounding cable 230 tightly surrounds the outer periphery of the cable 500.

[0048] It should be noted that, as Figure 12As shown in the state, during the process of connecting the grounding cable 230 to the outer periphery of the cable 500, it is necessary to first make the connection line of the two connection hooks 200 perpendicular to the axis of the cable 500. The operator pushes the connection frame 100 upward so that the part of the grounding cable 230 between the two connection hooks 200 can contact the lower part of the cable 500. After contacting the cable 500, continue to push the connection frame 100 upward. Since the grounding cable 230 is in a relaxed state, the tip heights of the two connection hooks 200 gradually exceed the height of the cable 500. After exceeding the height of the cable 500, rotate the connection frame 100. Stop after the connection frame 100 rotates 90°. At this time, the grounding cable 230 is spirally wound around the outer periphery of the cable 500. The operator pulls down the connection frame 100, and the connection frame 100 hooks the two connection hooks 200 on the surface of the cable 500 at the same time. Since the two ends of the grounding cable 230 pass through the tips of the two connection hooks 200 facing different directions, the tips of the two connection hooks 200 facing different directions can spiral the grounding cable 230 around the surface of the cable 500 and only wind one turn. When the tensioning device tightens the grounding cable 230, it can tightly wind the grounding cable 230 around the surface of the cable 500.

[0049] When the grounding cable 230 in the present invention is wound around the cable 500, the contact area between the grounding cable 230 and the cable 500 is increased, which is much larger than the contact area when the cable 500 is clamped by a conductor clip and a clamping plate, thereby reducing the contact resistance of the cable 500. And by tightly winding the grounding cable 230 around the outer periphery of the cable 500, relative rotation between the grounding cable 230 and the cable 500 can also be avoided, thereby reducing the wear of the cable 500.

[0050] Specifically, the grounding cable 230 between the two connection hooks 200 of the present invention is spirally wound around the cable 500, and the two connection hooks 200 can approach or move away from each other so as to adjust the distance of the grounding cable 230 between the two connection hooks 200. The winding direction of the grounding cable 230 around the surface of the cable 500 is the same as the winding direction and pitch of the spiral texture on the surface of the cable 500. It should be noted that during the manufacturing process of the cable 500, especially for some multi-layer structured cables 500, different wire cores or insulating layers need to be stranded. During the stranding process, in order to ensure the structural stability and performance of the cable 500, the stranding is carried out in a spiral shape according to certain rules and directions, which will form a spiral texture on the surface of the cable 500, and the spiral texture has a certain depth. If the winding direction and pitch of the grounding cable 230 are set to be the same as those of the spiral on the surface of the cable 500, the contact area between the two is significantly increased, and the contact pressure distribution is more uniform. On the one hand, the contact resistance is effectively reduced, ensuring the stability of the grounding system during the transmission of current, and reducing energy loss and safety hazards caused by poor contact. On the other hand, the mechanical connection strength between the grounding cable 230 and the cable 500 is enhanced. When the cable 500 is subjected to external pulling, bending or vibration, the grounding cable 230 can deform synchronously with the cable 500, avoiding problems such as displacement and loosening, and greatly improving the reliability and service life of the overall system.

[0051] More specifically, an induction component is provided at the tip of the hook of the two connection hooks 200 of the present invention. The induction component is used to sense the winding direction and pitch of the spiral texture on the surface of the cable 500. Since the winding direction and pitch of the spiral texture on the surface of the cable 500 to be grounded are different, an induction component is needed to determine the winding direction and pitch of the spiral texture on the surface of the cable 500. The induction component includes an induction hook 400, an induction cone rod 410 and a slide rod 420, as Figure 4 、 Figure 6 and Figure 7As shown, there are two induction hooks 400. The two induction hooks 400 are respectively fixedly arranged at the top of the hook tips of the two connecting hooks 200, and the hook tips of the two induction hooks 400 face the same direction. A fixing block 430 is arranged at the hook tip of the induction hook 400. A groove with the same arc as the hook tip of the induction hook 400 is opened at the lower end of the fixing block 430. A sliding rod 420 is fixedly arranged on the fixing block 430, and the axis of the sliding rod 420 is perpendicular to the plane where the induction hook 400 is located. An induction cone rod 410 is slidably connected to the sliding rod 420, and the axis of the induction cone rod 410 is perpendicular to the axis of the sliding rod 420. The induction cone rod 410 can slide along the axial direction of the sliding rod 420. When the two induction hooks 400 are hung on the surface of the cable 500, the tip of the induction cone rod 410 can contact the spiral texture on the surface of the cable 500. The operator pushes the connecting frame 100 to make the hook tips of the two induction hooks 400 rotate around the axis of the cable 500. At this time, the induction cone rod 410 moves along the axial direction of the sliding rod 420 under the action of the spiral texture on the surface of the cable 500. The rotation direction of the two induction hooks 400 driven by the connecting frame 100 and the moving direction of the induction cone rod 410 can be used to infer the helix direction of the spiral texture on the surface of the cable 500. Then, the pitch of the spiral texture on the surface of the cable 500 can be inferred from the distance that the induction cone rod 410 moves on the sliding rod 420. In this embodiment, the distance that the induction cone rod 410 slides on the sliding rod 420 is positively correlated with the pitch of the cable 500 surface. That is to say, the larger the pitch of the spiral texture on the surface of the cable 500, the farther the induction cone rod 410 moves on the sliding rod 420, and the smaller the pitch of the spiral texture on the surface of the cable 500, the closer the induction cone rod 410 moves on the sliding rod 420.

[0052] It should be noted that a distance sensor (not shown in the figure) can be arranged on the sliding rod 420. The distance sensor is used to measure the distance that the induction cone rod 410 moves and transmit the recorded data to a display screen (not shown in the figure). The operator can adjust the distance between the two connecting hooks 200 according to the obtained data and adjust the helix direction of the grounding cable 230 to be the same as the helix direction of the spiral texture on the surface of the cable 500. For example, Figure 12 taking the helix direction of the spiral texture on the surface of the cable 500 shown in Figure 12 as an example, the operator pushes the connecting frame 100 upward so that the grounding cable 230 contacts the cable 500 and the height of the connecting hook 200 is higher than that of the cable 500. Then, looking down from top to bottom, the connecting frame 100 is rotated counterclockwise. At this time, the helix direction of the grounding cable 230 is the same as the helix direction of the spiral texture on the surface of the cable 500; if the helix direction of the spiral texture on the surface of the cable 500 is opposite to that shown in

[0053] The operator adjusts the distance between the two connecting hooks 200 according to the helix direction and pitch of the spiral texture on the surface of the cable 500 obtained by the induction component, so that the pitch of the grounding cable 230 wound around the surface of the cable 500 is the same as the pitch of the spiral texture on the surface of the cable 500. At the same time, the direction of rotation of the rotating connecting frame 100 is changed, so that when the connecting frame 100 drives the two connecting hooks 200 to rotate by 90°, the helix direction of the grounding cable 230 spirally wound around the cable 500 is the same as the helix direction on the surface of the cable 500.

[0054] To facilitate the adjustment of the distance between the two connecting hooks 200, as Figure 2 and Figure 4 shown, the present invention is provided with a guiding telescopic rod 140 and a threaded rod 150 between the connecting frame 100 and the two connecting hooks 200. The fixed ends of the guiding telescopic rods 140 are fixedly connected to both ends of the connecting frame 100, and the telescopic ends of the guiding telescopic rods 140 are connected to the lower part 220 of the connecting hook 200. The threaded rod 150 is rotatably connected to the connecting frame 100. Threads are respectively provided at both ends of the threaded rod 150, and the helix directions of the two threads are opposite. And both ends of the threaded rod 150 are helically connected to the lower part 220 of the connecting hook 200. The operator can adjust the distance between the connecting hook 200 and the connecting frame 100 by rotating the threaded rod 150.

[0055] Specifically, as Figure 7 shown, in this embodiment, two elastic members 440 are respectively sleeved at both ends of the sliding rod 420. The elastic members 440 are compression springs or tension springs. One end of the elastic member 440 is fixed to one end of the sliding rod 420, and the other end of the elastic member 440 is connected to the induction cone rod 410. The setting of the two elastic members 440 enables the induction cone rod 410 to be located in the middle position of the sliding rod 420 or enables the induction cone rod 410 to have a tendency to reset.

[0056] More specifically, as Figure 5 、 Figure 9 、 Figure 10 and Figure 11As shown in the figure, the tensioning component of the present invention includes a fixed frame 300, a power storage gear 310, a first pulley 240 and a second pulley 250. The first pulley 240 and the second pulley 250 are both rotatably connected to the lower part 220 of the two connecting hooks 200. The outer circumferences of the first pulley 240 and the second pulley 250 have annular grooves, and the outer circumferences of the first pulley 240 and the second pulley 250 have contacting parts. Both ends of the grounding cable 230 pass through this part, so that the grounding cable 230 is clamped by the first pulley 240 and the second pulley 250. When the first pulley 240 and the second pulley 250 rotate, they can drive the grounding cable 230 to slacken or tighten. The fixed frame 300 is fixedly arranged on the lower part 220 of the connecting hook 200, and the fixed frame 300 is located above the second pulley 250. A power storage groove 330, a locking groove 340 and a rotating groove 350 are sequentially arranged vertically in the fixed frame 300. The locking groove 340 communicates with the power storage groove 330 and the rotating groove 350 respectively. The power storage gear 310 is rotatably arranged in the fixed frame 300, and the rotating shaft 320 of the power storage gear 310 can slide in the vertical direction, so that it can slide inside the power storage groove 330, the locking groove 340 and the rotating groove 350. A torsion spring (not shown in the figure) is arranged on the rotating shaft 320 of the power storage gear 310. When the power storage gear 310 rotates, the torsion spring can store power. When the power storage gear 310 is released, the torsion spring releases elastic force to drive the power storage gear 310 to rotate. And when the power storage gear 310 is released, the power storage gear 310 meshes with the second pulley 250. Therefore, the power storage gear 310 drives the second pulley 250 to rotate, and then the grounding cable 230 can be tightened.

[0057] It should be noted that, as Figure 10 and Figure 11As shown, in this embodiment, the locking groove 340 in the fixed frame 300 is a rectangular groove, the energy storage groove 330 and the rotation groove 350 are both circular grooves, and the rotating shaft 320 of the energy storage gear 310 is a square shaft. The diameter of the circular groove is slightly larger than the diagonal length of the square shaft so that the square shaft can rotate in the circular groove, and the size of the square shaft is adapted to the rectangular size of the locking groove 340. When the rotating shaft 320 of the energy storage gear 310 is located in the energy storage groove 330, the energy storage gear 310 can be manually rotated to pull the torsion spring to store energy. After the energy storage is completed, the rotating shaft 320 of the energy storage gear 310 is pushed into the locking groove 340. Since the rectangular size of the locking groove 340 is adapted to the rotating shaft 320, the locking groove 340 can lock the rotating shaft 320, and at this time, the energy storage gear 310 cannot rotate, that is, the torsion spring on the energy storage gear 310 cannot be released. When it is necessary to tighten the grounding cable 230, the rotating shaft 320 of the energy storage gear 310 can be pushed into the rotation groove 350. At this time, the rotating shaft 320 of the energy storage gear 310 is no longer restricted, and when the rotating shaft 320 of the energy storage gear 310 enters the rotation groove 350, the energy storage gear 310 meshes with the second pulley 250. Therefore, the energy storage gear 310 rotates to drive the second pulley 250 to rotate to tighten the grounding cable 230.

[0058] Specifically, for the convenience of the operator to push the energy storage gear 310 to move in the energy storage groove 330, the locking groove 340 and the rotation groove 350, as Figure 9 and Figure 10 shown, a vertical sliding groove is formed on the fixed frame 300. The vertical sliding groove is communicated with the energy storage groove 330, the locking groove 340 and the rotation groove 350 at the same time. A slider 360 is slidably arranged in the vertical sliding groove. The rotating shaft 320 of the energy storage gear 310 passes through the slider 360. The rotating shaft 320 of the energy storage gear 310 and the slider 360 can rotate relatively, and a knob 370 is coaxially and fixedly connected to the rotating shaft 320 of the energy storage gear 310. The operator can push the knob 370 upward to drive the rotating shaft 320 of the energy storage gear 310 to move upward through the slider 360 so as to enter the energy storage groove 330. The operator turns the knob 370 to store energy in the torsion spring. After the energy storage is completed, the operator moves downward so that the rotating shaft 320 of the energy storage gear 310 enters the locking groove 340 to lock the energy storage gear 310.

[0059] It should be noted that the bottom of the connecting frame 100 of the present invention is detachably connected to a mounting rod 120, and the mounting rod 120 facilitates the operator to lift the connecting frame 100 to a higher height, thereby facilitating the two connecting hooks 200 on the connecting frame 100 to be hung on the cable 500. A protrusion 110 is fixedly provided at the bottom of the connecting frame 100, and the mounting rod 120 is installed on the protrusion 110. A mounting hole 130 is provided on the side wall of the mounting rod 120, and a telescopic latch is provided on the protrusion 110. When the mounting rod 120 is installed on the protrusion 110, the telescopic latch on the protrusion 110 is shortened, and when the mounting hole 130 on the mounting rod 120 corresponds to the telescopic latch, the telescopic latch is The mounting rod 120 is extended to fix it on the protrusion 110. A pull rope (not shown in the figure) can be provided on the mounting rod 120 of the present invention. One end of the pull rope is connected to the mounting rod 120, and the other end of the pull rope is installed on the knob 370. When the mounting rod 120 is removed, the knob 370 can be pulled by the pull rope, and the knob 370 drives the slider 360 to slide downward so that the power storage gear 310 engages with the second pulley 250. At this time, the rotating shaft 320 of the power storage gear 310 moves from the locking groove 340 to the rotating groove 350. The rotating shaft 320 starts to rotate under the action of the elastic force released by the torsion spring, so that the second pulley 250 rotates to tighten the grounding cable 230.

[0060] Specifically, such as Figure 1 、 Figure 3 and Figure 4 As shown, in order to facilitate the operator to rotate the threaded column 150, a receiving groove 160 is opened on the part of the connecting frame 100 that is rotatably connected to the threaded column 150, and a rotating wheel 170 is rotatably arranged in the accommodating groove 160. The rotating wheel 170 is coaxial with the threaded column 150 and is fixedly connected, and a transmission wheel 180 and a toggle wheel 190 are rotatably arranged on the mounting rod 120. The transmission wheel 180 is in rolling contact with the outer periphery of the rotating wheel 170, and the toggle wheel 190 is in rolling contact with the outer periphery of the transmission wheel 180. The operator only needs to drive the toggle wheel 190 by hand to rotate, and the transmission wheel 180 can drive the rotating wheel 170 to rotate, and the rotating wheel 170 drives the threaded column 150 to rotate. The rotation of the threaded column 150 drives the two connecting hooks 200 to move closer to or away from each other.

[0061] More specifically, Figure 4 and Figure 12As shown, to ensure the effect of tightening the grounding cable 230, a plurality of guiding rings 270 are provided on the upper part 210 of the connecting hook 200. The plurality of guiding rings 270 are distributed along the hook tip of the connecting hook 200. The grounding cable 230 passes through each guiding ring 270 in sequence. A guiding wheel 260 is rotatably provided on the lower parts 220 of the two connecting hooks 200, and the guiding wheel 260 is located above the first pulley 240. The grounding cable 230 enters between the first pulley 240 and the second pulley 250 after bypassing the guiding wheel 260. Through the settings of the guiding wheel 260 and the guiding rings 270, the grounding cable 230 is tightened more evenly.

[0062] In a further embodiment, as Figure 3 shown, the grounding cable 230 of the present invention is composed of a plurality of conductive cables 231, and the plurality of conductive cables 231 are parallel to each other. When the grounding cable 230 is tightened, the plurality of conductive cables 231 surrounding the surface of the cable 500 will closely adhere to the surface of the cable 500, and the plurality of conductive cables 231 are more adapted to the spiral texture distribution on the surface of the cable 500, thereby further increasing the contact area between the cable 500 and the grounding cable 230.

[0063] The specific use process of a sliding grounding device provided by the present invention will be described in combination with the above embodiments:

[0064] Loosen the grounding cable 230:

[0065] The operator first moves the knob 370 upward, so that the slider 360 drives the rotating shaft 320 of the energy storage gear 310 into the energy storage groove 330. Then the operator rotates the knob 370, and the knob 370 drives the rotating shaft 320 of the energy storage gear 310 to rotate. At this time, the torsion spring (not shown in the figure) on the rotating shaft 320 gradually stores energy. After the energy storage is completed, the operator pushes the knob 370 downward, so that the slider 360 drives the rotating shaft 320 of the energy storage gear 310 into the locking groove 340. The locking groove 340 locks the rotating shaft 320 of the energy storage gear 310. At this time, the torsion spring is in the energy storage state, and the first pulley 240 and the second pulley 250 are not restricted and can rotate arbitrarily. At this time, the grounding cable 230 between the first pulley 240 and the second pulley 250 is in a relaxed state.

[0066] Obtain the helix direction and pitch of the spiral texture on the surface of the cable 500:

[0067] The operator lifts the mounting rod 120 to raise the connecting frame 100. The two sensing hooks 400 on the two connecting hooks 200 of the connecting frame 100 are hung on the surface of the cable 500. At this time, the sensing cone rod 410 on the sensing hook 400 contacts the surface of the cable 500. The operator pushes the mounting rod 120 to rotate around the axis of the cable 500 at a certain angle with the hanging position of the sensing hook 400 as the center. At this time, the sensing cone rod 410 on the sensing hook 400 moves along the spiral texture on the surface of the cable 500, and the distance sensor on the sensing hook 400 The distance moved by the sensing hook 400 is measured to obtain the pitch of the spiral texture on the surface of the cable 500, and the rotation direction of the spiral texture on the surface of the cable 500 is inferred based on the direction of movement of the sensing cone rod 410. The operator rotates the toggle wheel 190 according to the obtained data, and the toggle wheel 190 drives the transmission wheel 180 to rotate, the transmission wheel 180 drives the rotating wheel 170 to rotate, the rotating wheel 170 drives the threaded column 150 to rotate, and the threaded column 150 drives the two connecting hooks 200 to move closer to or away from each other, thereby adjusting the distance between the two connecting hooks 200.

[0068] The grounding cable 230 is spirally wrapped around the surface of the cable 500:

[0069] After the operator has completed the adjustment, he lifts the mounting rod 120, which drives the connecting frame 100, and connects the two connecting hooks 200 on the connecting frame 100 perpendicular to the axis of the cable 500. Then, he continues to lift the mounting rod 120 so that the grounding cable 230 contacts the bottom of the cable 500 and the hook tips of the two connecting hooks 200 exceed the height of the cable 500. Then, he rotates the mounting rod 120 according to the rotation direction of the cable 500, for example Figure 12 As shown in FIG, the operator rotates the mounting rod 120 counterclockwise (counterclockwise refers to Figure 12 The two connecting hooks 200 are hung on the cable 500 at 90 degrees (counterclockwise when viewed from top to bottom). At this time, the grounding cable 230 is spirally wrapped around the surface of the cable 500, and the rotation direction of the grounding cable 230 is the same as the rotation direction of the spiral texture on the surface of the cable 500.

[0070] Tighten the ground cable 230:

[0071] When the operator removes the mounting rod 120, since a pulling rope (not shown in the figure) is provided between the mounting rod 120 and the knob 370, when the mounting rod 120 is removed, the pulling rope on the mounting rod 120 can pull the knob 370 downward. The knob 370 drives the slider 360 to move downward, and the slider 360 drives the rotating shaft 320 of the energy storage gear 310 into the rotating groove 350. At the same time, the energy storage gear 310 meshes with the second pulley 250, and the rotating shaft 320 of the energy storage gear 310 is no longer restricted. The energy storage gear 310 drives the second pulley 250 to rotate under the action of the torsion spring. The second pulley 250 and the first pulley 240 tighten the grounding cable 230, so that each conductive cable 231 of the grounding cable 230 tightly surrounds the surface of the cable 500. The specific state is as Figure 2 shown, thereby increasing the contact area between the grounding cable 230 and the cable 500, and the connection strength between the two is relatively high.

[0072] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0073] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A sliding grounding device, characterized in that, include: A connecting frame, wherein each end of the connecting frame is provided with a connecting hook, the two connecting hooks are used to hang on the cable, and the hook tips of the two connecting hooks face in opposite directions; A grounding cable, with both ends of the grounding cable passing through the hook tips of the two connecting hooks, and the portion of the grounding cable between the two connecting hooks being able to wrap around the outer circumference of the cable; a tightening assembly configured to loosen the grounding cable while the grounding cable is being wound around the outer circumference of the cable, and to tighten the grounding cable after the grounding cable is wound around the outer circumference of the cable; The two connecting hooks can move closer to or farther from each other. The portion of the grounding cable located between the two connecting hooks is spirally wrapped around the outer circumference of the cable, and the rotation direction and pitch of the spiral wrapping are the same as the rotation direction and pitch of the spiral texture on the surface of the cable. The upper ends of the hook tips of the two connecting hooks are provided with a sensing component, which can sense the rotation direction and pitch of the spiral texture on the surface of the cable. The sensing assembly includes a sensing hook, a sensing cone rod and a sliding rod. The sensing hook is fixedly connected to the top of the hook tip of the connecting hook, and the hook tips of the two sensing hooks face the same direction. The sliding rod is fixedly set on the hook tip of the sensing hook, and the axis of the sliding rod is perpendicular to the plane where the sensing hook is located. The sensing cone rod is slidably set on the sliding rod. The tip of the sensing cone rod can contact the surface of the cable when the sensing hook is hooked with the cable. The sliding distance of the sensing cone rod on the sliding rod is positively correlated with the pitch of the spiral texture on the surface of the cable. A guide telescopic rod and a threaded column are provided between the connecting frame and the two connecting hooks, wherein the fixed end of the guide telescopic rod is fixed to the connecting frame, and the telescopic end of the guide telescopic rod is fixed to the lower part of the connecting hook. One end of the threaded column is rotated on the connecting frame, and the other end of the threaded column is spirally connected to the lower part of the connecting hook. The tensioning assembly includes a fixed frame, a power storage gear, a first pulley and a second pulley, the first pulley and the second pulley are rotatably arranged at the lower part of the connecting hook, the grounding cable is clamped between the outer periphery of the first pulley and the second pulley, the fixed frame is fixedly arranged at the lower part of the connecting hook and is located above the second pulley, the power storage gear is rotatably arranged inside the fixed frame, and a power storage groove, a locking groove and a rotation groove are vertically arranged in sequence in the fixed frame, the locking groove is respectively connected to the power storage groove and the rotation groove, the rotating shaft of the power storage gear can be switched among the power storage groove, the locking groove and the rotation groove, and when the rotating shaft of the power storage gear is located in the rotation groove, the power storage gear is meshed with the second pulley.

2. The sliding grounding device according to claim 1, wherein An elastic member is provided on the sliding rod, one end of the elastic member is connected to the end of the sliding rod, and the other end of the elastic member is connected to the sensing cone rod. The elastic member makes the sensing cone rod located in the middle position of the sliding rod or makes the sensing cone rod return to the middle position of the sliding rod.

3. The sliding grounding device according to claim 1, characterized in that, The locking groove in the fixed frame is a rectangular groove, the energy storage groove and the rotating groove in the fixed frame are both circular grooves, the rotating shaft of the energy storage gear is a square shaft, and the size of the square shaft is matched with the size of the rectangular groove.

4. The sliding grounding device according to claim 1, characterized in that, A slider is vertically slidably arranged on the fixed frame. The rotating shaft of the energy storage gear passes through the slider and the two can rotate relative to each other. A knob is coaxially and fixedly arranged on the rotating shaft of the energy storage gear. The bottom of the connecting frame is detachably connected with an installation rod. When the installation rod is separated from the connecting frame, it can pull the slider to slide downwards.

5. The sliding grounding device according to claim 1, wherein, A guide wheel is rotatably arranged on the lower part of the connecting hook. The guide wheel is located above the first pulley. The grounding cable bypasses the guide wheel and enters between the first pulley and the second pulley.

6. The sliding grounding device according to claim 1, characterized in that The grounding cable is composed of multiple conductive cables, and the multiple conductive cables are parallel to each other.

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