An overhead cable temporary support device for power construction

Abstract

This invention discloses a temporary overhead cable support device for power construction, relating to the field of power construction technology. The aim is to allow operators to perform cable height adjustment, placement, and limiting operations from the ground by linking height adjustment and cable limiting operations at a lower position. The proposed technical solution includes a base, a guide sleeve above the base, multiple positioning parts on the guide sleeve, a lifting rod slidably mounted inside the guide sleeve, a support plate, a locking element, and a pressing handle on the lifting rod, with a preset height difference between the pressing handle and the support plate. The pressing handle is connected to the locking element via a linkage element. A return spring is provided between the pressing handle and the lifting rod. An arc-shaped clamp is rotatably mounted on the support plate. A connecting rod traction assembly is provided between the pressing handle and the rotating element, one end of which is connected to the pressing handle, and the other end is hinged to the rotating element, with the hinge point offset from the rotation axis of the rotating element. This invention allows for free height adjustment, automatic height locking, and cable containment.

Description

Technical Field

[0001] This invention relates to the field of power construction technology, and specifically to a temporary support device for overhead cables used in power construction. Background Technology

[0002] During power construction, temporary overhead supports are often required to prevent cables from being damaged by direct contact with the ground, while also ensuring ground access and construction safety. Various devices for temporary cable support have been developed in the existing technology.

[0003] For example, Chinese patent CN110277753A discloses a support frame suitable for temporary cable support at power infrastructure construction sites. It includes a vertical support rod with a clamp at the top for clamping the cable and a fork at the bottom for inserting into soft soil. In use, the fork is pressed into the soil to fix the support rod, and the cable is clamped by the clamp at the top of the support rod, thus achieving temporary support for the cable.

[0004] However, in this existing technology, the cable fixing mechanism (i.e., the clamp) is located at the top of the support rod, at the highest point of the entire device. In power construction, common work scenarios include: cables being laid but not yet taut; existing cables requiring temporary lifting due to excessive sag; or cables needing to be elevated during maintenance work on existing lines. In these scenarios, the minimum passage height for temporary overhead cables is typically no less than 2.5 meters to ensure safe passage below. Operators need to raise the support device to this height so that the fixing mechanism can support the cable.

[0005] However, as the support pole rises, the fixing mechanism also rises to a position of 2.5 meters or even higher. Most adult operators standing on the ground cannot reach the highest fixing mechanism and cannot complete the cable insertion or limiting operation. To fix cables at high altitudes, operators often need to use ladders or other climbing equipment, which is inconvenient and poses safety hazards for working at heights. Summary of the Invention

[0006] This invention provides a temporary support device for overhead cables in power construction. The purpose is to enable operators to perform cable height adjustment, insertion, and limiting operations while standing on the ground by linking the height adjustment operation with the cable limiting operation at a lower position.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0008] A temporary overhead cable support device for power construction includes a base, a guide sleeve on top of the base, multiple positioning parts on the guide sleeve, a lifting rod slidably disposed inside the guide sleeve, a support plate fixed to the top of the lifting rod, and a locking element movably disposed on the lifting rod; a pressing handle movably disposed on the lifting rod, with a preset height difference between the pressing handle and the support plate, and the pressing handle being connected to the locking element via a linkage; a return spring is disposed between the pressing handle and the lifting rod, one end of which is connected to the pressing handle and the other end of which is connected to the lifting rod; a rotating component is rotatably disposed on the support plate, and an arc-shaped clamp is fixed on the rotating component; a connecting rod traction assembly is disposed between the pressing handle and the rotating component, one end of which is connected to the pressing handle and the other end of which is hinged to the rotating component, with the hinge point offset from the rotation axis of the rotating component.

[0009] Furthermore, the preset height difference between the pressing handle and the support plate is 1-1.5 meters.

[0010] Furthermore, the multiple positioning parts are multiple positioning holes spaced apart along the height direction of the guide sleeve, and the locking element is an insertion rod that cooperates with the positioning holes;

[0011] The linkage includes a sliding crossbar and a fixed plate. A horizontal sliding sleeve is fixed on the lifting rod. The sliding crossbar slides through the horizontal sliding sleeve. One end of the crossbar is fixedly connected to the pressing handle, and the other end is fixedly connected to the fixed plate. The insertion rod is fixed on the fixed plate.

[0012] Furthermore, the linkage traction assembly includes a fixed bar and a hinge bar. The fixed bar is fixed to the pressing handle, and one end of the hinge bar is hinged to the fixed bar, while the other end is hinged to the rotating component.

[0013] Furthermore, the rotating component is a horizontally rotating crossbar that is rotatably connected to the side wall of the pallet, and there are two arc-shaped clamps, which are fixed to the two ends of the rotating crossbar respectively.

[0014] Furthermore, a fixed cylinder is fixed on the lifting rod, and a return spring is set inside the fixed cylinder. One end of the return spring is fixedly connected to the inner side wall of the fixed cylinder, and the other end is fixedly connected to the side wall of the pressing handle.

[0015] Furthermore, the base includes a support ring and a plurality of support legs fixedly connected to the bottom of the support ring.

[0016] Furthermore, it also includes a counterweight adjustment unit, which includes a fixed housing, a ball, an upper rod, a lower rod, and a counterweight block; the fixed housing is fixedly connected to the top of the support ring, and a spherical cavity is provided inside the fixed housing, in which the ball is rolled and disposed; the lower end of the upper rod is fixedly connected to the ball, and the upper end is fixedly connected to the guide sleeve; the upper end of the lower rod is fixedly connected to the ball, and the lower end is fixedly connected to the counterweight block.

[0017] Furthermore, it also includes a reinforcement unit, which includes a vertical sliding sleeve, a vertical insert rod, a connecting frame, and a driving component; the vertical sliding sleeve is vertically and fixedly connected to the support leg; the vertical insert rod is slidably disposed inside the vertical sliding sleeve, with a tapered tip at the bottom end; the connecting frame is fixedly connected to the top of all the vertical insert rods, and the driving component is disposed on the support ring and drivenly connected to the connecting frame.

[0018] Furthermore, the reinforcement unit also includes a second clamping block, an internal threaded sleeve, a second threaded crossbar, a first gear, a second gear, a vertical rack, a worm gear, and a worm.

[0019] The second clamping block is movably disposed within the fixed housing, and has an arc-shaped surface on the side facing the sphere that matches the outer spherical surface of the sphere; one end of the internal threaded sleeve is rotatably connected to the second clamping block, and the other end is threadedly connected to the second threaded crossbar; the first gear and the worm wheel are sequentially fixedly sleeved on the second threaded crossbar along the axial direction; the second gear meshes with the first gear; the vertical rack meshes with the second gear, and its bottom end is fixedly connected to the connecting frame; the worm meshes with the worm wheel, and a second rotating handle is fixedly connected to the top end of the worm.

[0020] The present invention has the following beneficial effects:

[0021] Operators can adjust and limit the cable height from the ground, eliminating the need to climb and avoiding the safety hazards of working at height. Pressing the handle simultaneously releases the height lock and opens the arc-shaped clamp, allowing for free adjustment of the support plate height; releasing it automatically locks the height and surrounds the cable. A single pressing action completes two functions simultaneously, making operation convenient and efficient.

[0022] A 1-1.5 meter height difference between the pressing handle and the support plate ensures comfortable operation for users of average height while standing on the ground, meeting ergonomic requirements. The positioning hole and insertion rod work together, resulting in a simple structure with reliable multi-position locking to meet different overhead height requirements. The sliding crossbar and fixed plate rigidly transmit the pressing displacement to the insertion rod, providing direct unlocking or locking responses without lag. The fixed bar and hinge bar form a simple linkage mechanism, converting the linear motion of the pressing handle into the rotational motion of the rotating component through an eccentric hinge point, resulting in a compact structure and reliable transmission. Two symmetrically arranged arc-shaped clamps enclose the support plate, providing stable cable limiting and good anti-detachment performance. The fixed cylinder provides stable housing space for the return spring, preventing spring deflection and detachment, ensuring reliable return of the pressing handle after each operation, and guaranteeing synchronous completion of height locking and clamp closure.

[0023] When the device is placed on an inclined surface, the counterweight automatically rolls the ball under gravity, keeping the upper rod and guide sleeve vertical and the support plate in the correct supporting posture. No manual leveling with shims is required, saving time and effort. The vertical insertion rod is raised and lowered synchronously via the connecting frame, and its tapered tip facilitates insertion into the soil. The device has strong ground anchoring force and improved anti-overturning ability. A single rotation of the worm gear simultaneously completes the ball's clamping and locking posture and the vertical insertion rod's insertion into the soil for anchoring, making operation simple. The worm gear transmission has a self-locking characteristic; once locked, it will not loosen on its own and remains stable under external forces such as wind loads and cable off-center loads. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of the temporary support device for overhead cables in power construction provided by the present invention;

[0025] Figure 2 This is an overall sectional view of the temporary support device for overhead cables used in power construction according to the present invention;

[0026] Figure 3 This is another perspective view of the temporary support device for overhead cables used in power construction according to the present invention;

[0027] Figure 4 This is a schematic diagram of the structure at the upper opening in this invention;

[0028] Figure 5 This is a schematic diagram of the structure at the insertion rod in this invention;

[0029] Figure 6 This is a schematic diagram of the lifting rod structure in this invention;

[0030] Figure 7 This is a cross-sectional view of the fixed cylinder in this invention;

[0031] Figure 8 This is a schematic diagram of the structure of the sphere in this invention;

[0032] Figure 9 for Figure 3 Enlarged view of point A in the image;

[0033] Figure 10 This is a schematic diagram of the structure at the fixed housing in this invention;

[0034] Figure 11 This is a schematic diagram of the connecting frame in this invention;

[0035] Figure 12 This is a partial structural diagram of the counterweight adjustment unit in this invention;

[0036] Figure 13 This is a schematic diagram of the mounting bracket in this invention.

[0037] Figures 1 to 13 The reference numerals in the accompanying drawings represent: 1. Support ring; 2. Support leg; 3. Support plate; 4. Counterweight adjustment unit; 41. Counterweight component; 411. Fixed housing; 412. Sphere; 413. Upper opening; 414. Lower opening; 415. Lower rod; 416. Counterweight block; 417. Upper rod; 42. Pressing component; 421. First sliding groove chamber; 422. First threaded crossbar; 423. First rotating handle; 424. First pressing block; 5. Height adjustment unit; 51. Height adjustment component; 511. Guide sleeve; 512. Lifting rod; 513. Horizontal fixed handle; 514. Fixed cylinder; 515. Horizontal sliding sleeve; 52. Pressing component; 521. Pressing handle; 522. Sliding crossbar; 523. 524. Fixed plate; 525. Insertion rod; 526. Clearance through hole; 527. Positioning hole; 528. Long slot hole; 529. Return spring; 600. Anti-detachment unit; 601. Rotating component; 602. Arc-shaped clamping plate; 603. Hinge strip; 604. Fixing strip; 71. Reinforcing unit; 71. Insertion component; 711. Connecting frame; 712. Vertical sliding sleeve; 713. Vertical insertion rod; 72. Drive component; 721. Second sliding groove chamber; 722. Second clamping block; 723. Internal threaded sleeve; 724. Vertical sliding groove; 725. First gear; 726. Second gear; 727. Vertical rack; 728. Worm gear; 729. Worm; 7210. Second rotating handle; 7211. Second threaded crossbar; 8. Mounting bracket. Detailed Implementation

[0038] The present application will now be described with reference to the accompanying drawings. It should be understood that directional terms used in the following description, such as up, down, left, right, top, bottom, etc., are all based on... Figure 2 The orientation shown is only used to clearly describe the structural relationships, not to limit the scope of protection.

[0039] Please refer to Figure 1-3 This embodiment describes in detail a temporary overhead cable support device for power construction, including a base for supporting the ground. A guide sleeve 511 is provided above the base, and the guide sleeve 511 has multiple positioning parts for engaging with locking components to achieve height locking. A lifting rod 512 is slidably disposed within the guide sleeve 511, and a support plate 3 is fixed to the top of the lifting rod 512 for supporting the cable. A locking component is movably disposed on the lifting rod 512, and the locking component can selectively engage with any positioning part to lock the height of the lifting rod 512 relative to the guide sleeve 511. When the locking component engages with a positioning part, the lifting rod 512 is fixed at the current height; when the locking component disengages from the positioning part, the lifting rod 512 can slide up and down along the guide sleeve 511 to adjust the height of the support plate 3.

[0040] A pressing handle 521 is movably mounted on the lifting rod 512, and a horizontal sliding sleeve 515 is fixed to the lifting rod 512. A horizontal fixing handle 513 is fixedly fitted on the outer side of the horizontal sliding sleeve 515. The operator can adjust the height by simultaneously raising and lowering the lifting rod 512 by holding the horizontal fixing handle 513. The pressing handle 521 is located below the support plate 3, and there is a preset height difference between the pressing handle 521 and the support plate 3. This height difference allows the operator to operate the pressing handle 521 while standing on the ground without the need for a ladder.

[0041] The pressing handle 521 is connected to the locking member via a linkage. When the pressing handle 521 is pressed, the pressing handle 521 drives the locking member out of the positioning part via the linkage, releasing the height lock of the lifting rod 512. After the pressing handle 521 is released, the linkage drives the locking member back to the position that cooperates with the positioning part, relocking the height of the lifting rod 512. A return spring 528 is provided between the pressing handle 521 and the lifting rod 512 to drive the pressing handle 521 to reset. One end of the return spring 528 is connected to the pressing handle 521, and the other end is connected to the lifting rod 512. When the pressing handle 521 is pressed, the return spring 528 is compressed. After the release, the return spring 528 pushes the pressing handle 521 to reset. A rotating member 601 is rotatably provided on the support plate 3. An arc-shaped clamping plate 602 is fixed on the rotating member 601. The arc-shaped clamping plate 602 cooperates with the support plate 3 to clamp the cable and prevent the cable from coming out from above the support plate 3.

[0042] A connecting rod traction assembly is provided between the pressing handle 521 and the rotating component 601. One end of the assembly is connected to the pressing handle 521, and the other end is hinged to the rotating component 601, with the hinge point offset from the rotation axis of the rotating component 601. When the pressing handle 521 is pressed, the pressing handle 521 drives the rotating component 601 to rotate forward through the connecting rod traction assembly, causing the arc-shaped clamp 602 to open outward, facilitating the placement or removal of the cable from the tray 3. After the pressing handle 521 is released, the pressing handle 521 returns to its original position under the action of the return spring 528, and drives the rotating component 601 to rotate in the opposite direction through the connecting rod traction assembly, causing the arc-shaped clamp 602 to rotate back to the position where it surrounds the cable with the tray 3, thereby limiting the cable.

[0043] In the above structure, the guide sleeve 511, lifting rod 512, positioning part, locking part, linkage part, pressing handle 521, and return spring 528 together constitute the height adjustment unit 5. The height adjustment unit 5 includes a height adjustment component 51 and a pressing component 52: the height adjustment component 51 includes the guide sleeve 511, the lifting rod 512, and multiple positioning parts disposed on the guide sleeve 511; the pressing component 52 includes a pressing handle 521, linkage part, locking part, and return spring 528. Each guide sleeve 511 has a through-hole 527 for the horizontal sliding sleeve 515 to pass through. The horizontal sliding sleeve 515 passes through the corresponding through-hole 527, and the through-hole 527 is arranged along the length direction of the vertical sleeve 511. The through-hole 527 provides a guide for the lifting stroke of the horizontal sliding sleeve 515.

[0044] The rotating component 601, the arc-shaped clamping plate 602, and the connecting rod traction assembly together constitute the anti-detachment unit 6.

[0045] In use, the operator holds the guide sleeve 511 with one hand and presses the pressing handle 521 with the other. The pressing handle 521, through the linkage, drives the locking part to disengage from the positioning part, and simultaneously drives the rotating part 601 to rotate through the connecting rod traction assembly, causing the arc-shaped clamp 602 to open. At this time, the operator can move the lifting rod 512 up and down to adjust the support plate 3 to the required height. After adjustment, the pressing handle 521 is released. Under the action of the return spring 528, the pressing handle 521 returns to its original position, the locking part inserts into the corresponding positioning part, and the height of the lifting rod 512 is locked; at the same time, the arc-shaped clamp 602 rotates, enclosing the cable with the support plate 3, completing the support and limiting of the cable. The entire operation can be completed by the operator standing on the ground, without the need for climbing, making the operation convenient, safe and reliable.

[0046] To facilitate operation by having operators stand on the ground to complete all pressing, adjusting, and releasing actions, in this embodiment, the preset height difference between the pressing handle 521 and the support plate 3 is 1-1.5 meters. This height difference range is based on considerations of actual construction scenarios: when the entire device is supported on the ground, the support plate 3 is located at an overhead height of more than 2.5 meters to meet traffic safety requirements, while the pressing handle 521 is located 1-1.5 meters below the support plate 3, that is, approximately 1-1.5 meters above the ground. This height is within the range where an adult operator of normal height can operate the device with their arm naturally hanging down or slightly raised, without the need for ladders or other climbing equipment.

[0047] In this embodiment, the multiple positioning parts are multiple positioning holes 526 spaced apart along the height direction of the guide sleeve 511. The positioning holes 526 penetrate the sleeve wall of the guide sleeve 511 laterally, and the multiple positioning holes 526 are arranged at equal intervals, so that the lifting rod 512 can be locked at multiple different height positions to meet the adjustment requirements of different cable overhead heights.

[0048] The locking element is an insertion rod 524, which is movably mounted on the lifting rod 512 and can be selectively inserted into any positioning hole 526. When the insertion rod 524 is inserted into the positioning hole 526 at a certain height, the relative position of the lifting rod 512 and the guide sleeve 511 is fixed, and the support plate 3 is held at that height; when the insertion rod 524 is removed from the positioning hole 526, the lifting rod 512 can slide freely up and down along the guide sleeve 511.

[0049] To reliably convert the horizontal pressing motion of the pressing handle into the unlocking or locking action of the insert rod, in this embodiment, the linkage includes a sliding crossbar 522 and a fixed plate 523. The sliding crossbar 522 slides through the transverse sliding sleeve 515. The axis of the sliding crossbar 522 is perpendicular to the lifting direction of the lifting rod 512, and the sliding crossbar 522 can reciprocate along its own axis. One end of the sliding crossbar 522 is fixedly connected to the pressing handle 521, and the other end is fixedly connected to the fixed plate 523. The fixed plate 523 has a transverse through-hole 525 for avoiding the fixed cylinder 514. The insert rod 524 is fixed to the fixed plate 523, and the axis of the insert rod 524 is parallel to the axis of the sliding crossbar 522.

[0050] When the pressing handle 521 is pressed, it pushes the sliding crossbar 522 to slide laterally along the lifting rod 512. The sliding crossbar 522 moves the fixing plate 523, and the fixing plate 523 causes the insertion rod 524 to retract from the positioning hole 526, releasing the height lock. After releasing the pressing handle 521, the pressing handle 521 returns to its original position under the action of the return spring 528. The sliding crossbar 522 and the fixing plate 523 move in opposite directions, and the insertion rod 524 re-inserts into the corresponding positioning hole 526, restoring the height lock.

[0051] To provide a simple linkage mechanism that achieves the eccentric conversion of the linear motion of the pressing handle to the rotational motion of the rotating component, ensuring the reliable opening and closing of the arc-shaped clamp 602, this embodiment includes a linkage traction assembly comprising a fixed bar 604 and a hinge bar 603. The fixed bar 604 is fixed to the pressing handle 521 and moves synchronously with it. One end of the hinge bar 603 is hinged to the fixed bar 604, and the other end is hinged to the rotating component 601, with the hinge point offset from the rotation axis of the rotating component 601.

[0052] When the pressing handle 521 is pressed, the fixing bar 604 moves with the pressing handle 521 and pulls the hinge bar 603. The hinge bar 603 applies a rotational torque to the rotating component 601 through the eccentric hinge point, causing the rotating component 601 to rotate in the positive direction around its own axis. The arc-shaped clamp 602 opens outward as the rotating component 601 rotates. When the pressing handle 521 is released, the pressing handle 521 resets and drives the fixing bar 604 and the hinge bar 603 in the opposite direction, causing the rotating component 601 to rotate in the opposite direction. The arc-shaped clamp 602 rotates back to the position where it surrounds the cable with the support plate 3.

[0053] To improve the stability and reliability of cable positioning and anti-detachment, in this embodiment, the rotating component 601 is a horizontally rotating crossbar rotatably connected to the side wall of the support plate 3. The crossbar is horizontally positioned, with its two ends extending out from both sides of the support plate 3. Two arc-shaped clamping plates 602 are fixed to the two ends of the crossbar. The two arc-shaped clamping plates 602 are symmetrically arranged and each has an arc-shaped groove, which faces the arc-shaped support surface of the support plate 3, forming a closed-loop positioning structure for the cable. When the crossbar rotates, the two arc-shaped clamping plates 602 rotate synchronously, opening or closing simultaneously, thus improving the stability and symmetry of cable positioning.

[0054] To ensure the stable installation of the return spring 528 and guarantee its reliable return to its original position after the pressing handle is released, preventing spring misalignment or detachment, a fixing cylinder 514 is fixed to the lifting rod 512 in this embodiment. The fixing cylinder 514 has an internal receiving cavity, and the return spring 528 is disposed within it. One end of the return spring 528 is fixedly connected to the inner wall of the fixing cylinder 514, and the other end is fixedly connected to the side wall of the pressing handle 521.

[0055] The fixed cylinder 514 provides a stable mounting base for the return spring 528, preventing the return spring 528 from tilting or falling off during pressing and resetting. When the pressing handle 521 is pressed, the pressing handle 521 compresses the return spring 528; after releasing, the return spring 528 returns to its original length and pushes the pressing handle 521 to reset, ensuring that the pressing handle 521 can reliably return to its initial position after each operation, so that the height locking and the closing action of the arc-shaped clamp 602 are completed synchronously.

[0056] To provide stable support and adapt the device to various ground conditions, in this embodiment, the base includes a support ring 1 and multiple support legs 2 fixedly connected to the bottom of the support ring 1. The number of support legs 2 is 3-4, evenly distributed along the circumference of the support ring 1 to provide stable support. Each support leg 2 may have a pointed tip or anti-slip pad at its bottom end to adapt to different ground conditions. A guide sleeve 511 is disposed on the top of the support ring 1. The support ring 1 serves to connect and support, stably supporting the guide sleeve 511 and its upper components on the ground.

[0057] When the device is placed on an inclined surface, the weight of the counterweight 416 can automatically adjust the posture of the upper rod 417, keeping the guide sleeve and support plate vertical without the need for manual leveling with shims. In this embodiment, the device also includes a counterweight adjustment unit 4, which includes a fixed housing 411, a ball 412, an upper rod 417, a lower rod 415, and a counterweight 416.

[0058] The fixed housing 411 is fixedly connected to the top of the support ring 1. The fixed housing 411 has a spherical chamber inside, and the ball 412 is rolled inside the spherical chamber. The inner wall of the spherical chamber is adapted to the outer surface of the ball 412. The lower end of the upper rod 417 passes through the upper opening 413 and is fixedly connected to the ball 412, and the upper end is fixedly connected to the guide sleeve 511. The upper end of the lower rod 415 passes through the lower opening 414 and is fixedly connected to the ball 412, and the lower end is fixedly connected to the counterweight 416.

[0059] When the device is placed on an inclined surface, the support ring 1 tilts with the ground, but the counterweight 416 always tends to move vertically downwards under the action of gravity, causing the lower rod 415 and the ball 412 to roll freely in the spherical cavity until the counterweight 416 is at its lowest point. Due to the rolling of the ball 412, the upper rod 417 maintains a vertically upward posture in space, thereby keeping the guide sleeve 511, the lifting rod 512, and the support plate 3 vertical. This ensures stable support of the cable by the support plate 3 without the need for manual leveling with shims.

[0060] To improve the device's anti-overturning capability on the ground and enhance its overall stability, this embodiment further includes a reinforcement unit 7, which includes an insertion component 71 and a driving component 72. The insertion component 71 includes a vertical sliding sleeve 712, a vertical insertion rod 713, a connecting frame 711, and the driving component 72.

[0061] A vertical sliding sleeve 712 is vertically and fixedly connected to the support leg 2, and each support leg 2 has a vertical sliding sleeve 712. A vertical insertion rod 713 is slidably disposed within the vertical sliding sleeve 712, and the bottom end of the vertical insertion rod 713 forms a tapered tip, which facilitates insertion into the soil. A connecting frame 711 is fixedly connected to the top ends of all vertical insertion rods 713, enabling all vertical insertion rods 713 to rise and fall synchronously.

[0062] The drive component 72 is mounted on the support ring 1 and connected to the connecting frame 711. It drives the connecting frame 711 and all the vertical rods 713 to move up and down along the vertical sliding sleeve 712. When it is necessary to enhance the ground anchoring force of the device, the operator drives the connecting frame 711 downward through the drive component 72. The connecting frame 711 drives all the vertical rods 713 to slide downward along the vertical sliding sleeve 712. The conical tips at the bottom of the vertical rods 713 insert into the ground soil, firmly anchoring the device to the ground and improving the device's anti-overturning ability.

[0063] In this embodiment, the driving component 72 specifically includes a second sliding groove chamber 721, a second clamping block 722, an internal threaded sleeve 723, a second threaded crossbar 7211, a mounting bracket 8, a first gear 725, a second gear 726, a vertical rack 727, a worm gear 728, a worm 729, and a second rotating handle 7210. The second sliding groove chamber 721 is located inside the fixed housing 411 on the other side, and the second clamping block 722 is slidably disposed within the second sliding groove chamber 721. One end of the internal threaded sleeve 723 extends into the second sliding groove chamber 721 and abuts against the second clamping block 722. The mounting bracket 8 is fixedly connected to the outer wall of the fixed housing 411, and the second threaded crossbar 7211 is laterally rotatably connected to the mounting bracket 8 and threadedly connected to the internal threaded sleeve 723. The first gear 725 and the worm gear 728 are sequentially fixed along the axial direction. The first gear 725 is meshed with the first gear 725 and is rotatably connected to the mounting bracket 8. The vertical slide groove 724 is vertically opened through the mounting bracket 8, and the vertical rack 727 slides through the vertical slide groove 724 and meshes with the second gear 726. The bottom end of the vertical rack 727 is fixedly connected to the connecting bracket 711. The worm 729 is vertically opened through the mounting bracket 8 and rotatably connected to the mounting bracket 8 and meshes with the worm wheel 728. The top end of the worm 729 is fixedly connected to the second rotating handle 7210.

[0064] When the second handle 7210 is rotated, the worm 729 drives the worm wheel 728 to rotate, which in turn drives the second threaded crossbar 7211 to rotate. The second threaded crossbar 7211, on one hand, drives the internal threaded sleeve 723 to move through threaded engagement, pushing the second clamping block 722 to press against the ball 412; on the other hand, it drives the first gear 725 to rotate, which in turn drives the second gear 726 to rotate. The second gear 726 drives the vertical rack 727 to move downwards along the vertical slide groove 724, thereby pushing the connecting frame 711 and all the vertical insertion rods 713 downwards into the soil, achieving simultaneous completion of attitude locking and ground anchoring. The transmission between the worm 729 and the worm wheel 728 has a self-locking characteristic, preventing the transmission mechanism from reversing under normal operating conditions.

[0065] In addition, the counterweight adjustment unit 4 may also be equipped with a first pressing component 42, used to press the ball 412 when light fixation is required. The first pressing component 42 includes a first sliding groove chamber 421, a first pressing block 424, a first threaded crossbar 422, and a first rotating handle 423. The first sliding groove chamber 421 is opened inside one side of the fixed housing 411. The first pressing block 424 is slidably disposed in the first sliding groove chamber 421, and has an arc-shaped surface on the side facing the ball 412 that matches the outer spherical surface of the ball 412. The first threaded crossbar 422 is threaded laterally through and connected to one side of the fixed housing 411. One end of the crossbar extends into the first sliding groove chamber 421 and is rotatably connected to the first pressing block 424, and the other end is fixedly connected to the first rotating handle 423. Rotating the first rotating handle 423 can push the first pressing block 424 to press the ball 412, locking the posture of the counterweight component 41, which is suitable for use on flat ground or in scenarios with small external forces. The two clamping methods prevent the device from tilting when subjected to cable eccentricity or external force, thus meeting the requirement for stable cable support during power construction.

[0066] It should be noted that in this embodiment, the drive component 72 can also be replaced by a conventional transmission structure such as a lead screw nut or a pneumatic cylinder, as long as it can convert the input motion into the up and down displacement of the connecting frame and the vertical insertion rod; the connecting rod traction assembly can be replaced by a crank connecting rod, which can convert the linear motion of the pressing handle into the rotational motion of the rotating part, and the connection point is off the axis of rotation; the rotating part can be replaced by a rotatable support structure such as a rotating shaft or a hinge shaft, which is used to install the arc-shaped clamp and realize opening and closing.

Claims

1. A temporary support device for overhead cables used in power construction, characterized in that, Includes a base, a guide sleeve (511) is provided on the top of the base, the guide sleeve (511) is provided with multiple positioning parts, a lifting rod (512) is slidably arranged inside the guide sleeve (511), a support plate (3) is fixed at the top of the lifting rod (512), and a locking element is movably arranged on the lifting rod (512); a pressing handle (521) is movably arranged on the lifting rod (512), and there is a preset height difference between the pressing handle (521) and the support plate (3), and the pressing handle (521) is connected to the locking element through a linkage element; the pressing handle (521) A return spring (528) is provided between the pressing handle (521) and the lifting rod (512), one end of which is connected to the pressing handle (521) and the other end is connected to the lifting rod (512); a rotating part (601) is rotatably provided on the support plate (3), and an arc-shaped clamp (602) is fixed on the rotating part (601); a connecting rod traction assembly is provided between the pressing handle (521) and the rotating part (601), one end of which is connected to the pressing handle (521) and the other end is hinged to the rotating part (601), and the hinge point is offset from the rotation axis of the rotating part (601).

2. The temporary support device for overhead cables in power construction according to claim 1, characterized in that, The preset height difference between the pressing handle (521) and the tray (3) is 1-1.5 meters.

3. A temporary support device for overhead cables in power construction according to claim 1, characterized in that, The multiple positioning parts are multiple positioning holes (526) spaced apart along the height direction of the guide sleeve (511), and the locking member is an insertion rod (524), which cooperates with the positioning holes (526); The linkage includes a sliding crossbar (522) and a fixed plate (523). A horizontal sliding sleeve (515) is fixed on the lifting rod (512). The sliding crossbar (522) slides through the horizontal sliding sleeve (515). One end of the sliding crossbar is fixedly connected to the pressing handle (521), and the other end is fixedly connected to the fixed plate (523). The insertion rod (524) is fixed on the fixed plate (523).

4. A temporary support device for overhead cables in power construction according to claim 1, characterized in that, The linkage traction assembly includes a fixed bar (604) and a hinge bar (603). The fixed bar (604) is fixed to the pressing handle (521). One end of the hinge bar (603) is hinged to the fixed bar (604), and the other end is hinged to the rotating part (601).

5. A temporary support device for overhead cables in power construction according to claim 1, characterized in that, The rotating component (601) is a horizontally rotating crossbar that is rotatably connected to the side wall of the pallet (3). There are two arc-shaped clamps (602), which are respectively fixed to the two ends of the rotating crossbar.

6. A temporary support device for overhead cables in power construction according to claim 1, characterized in that, A fixed cylinder (514) is fixed on the lifting rod (512), and the reset spring (528) is disposed inside the fixed cylinder (514). One end of the reset spring (528) is fixedly connected to the inner side wall of the fixed cylinder (514), and the other end is fixedly connected to the side wall of the pressing handle (521).

7. A temporary support device for overhead cables in power construction according to claim 1, characterized in that, The base includes a support ring (1) and a plurality of support legs (2) fixedly connected to the bottom of the support ring (1).

8. A temporary support device for overhead cables in power construction according to claim 7, characterized in that, It also includes a counterweight adjustment unit (4), which includes a fixed housing (411), a ball (412), an upper rod (417), a lower rod (415), and a counterweight (416). The fixed housing (411) is fixedly connected to the top of the support ring (1), and a spherical cavity is provided inside the fixed housing (411). The ball (412) is rolled in the spherical cavity. The lower end of the upper rod (417) is fixedly connected to the ball (412), and the upper end is fixedly connected to the guide sleeve (511). The upper end of the lower rod (415) is fixedly connected to the ball (412), and the lower end is fixedly connected to the counterweight (416).

9. A temporary support device for overhead cables in power construction according to claim 7, characterized in that, It also includes a reinforcement unit (7), which includes a vertical sliding sleeve (712), a vertical insert rod (713), a connecting frame (711), and a driving component (72); the vertical sliding sleeve (712) is vertically and fixedly connected to the support leg (2); the vertical insert rod (713) is slidably disposed in the vertical sliding sleeve (712), and a tapered tip is formed at the bottom end; the connecting frame (711) is fixedly connected to the top of all the vertical insert rods (713), and the driving component (72) is disposed on the support ring (1) and is drivenly connected to the connecting frame (711).

10. A temporary support device for overhead cables in power construction according to claim 9, characterized in that, The reinforcement unit (7) also includes a second clamping block (722), an internal threaded sleeve (723), a second threaded crossbar (7211), a first gear (725), a second gear (726), a vertical rack (727), a worm gear (728), and a worm (729). The second clamping block (722) is movably disposed inside the fixed housing (411), and has an arc-shaped surface on the side facing the sphere (412) that is adapted to the outer spherical surface of the sphere (412); one end of the internal threaded sleeve (723) is rotatably connected to the second clamping block (722), and the other end is threadedly connected to the second threaded crossbar (7211); the first gear (725) and the worm wheel (728) are fixedly sleeved on the second threaded crossbar (7211) in sequence along the axial direction; the second gear (726) meshes with the first gear (725); the vertical rack (727) meshes with the second gear (726), and its bottom end is fixedly connected to the connecting frame (711); the worm (729) meshes with the worm wheel (728), and the top end of the worm (729) is fixedly connected to the second rotating handle (7210).

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