A fall protection device and a suspension clamp purging device

Abstract

The present application relates to the technical field of electric power fittings, and discloses a falling-prevention device and a suspension clamp blowing device, which comprises a vertical flexible guide rail arranged on a straight tower along a straight tower height direction; cross arm flexible guide rails arranged horizontally and transversely on the straight tower, wherein one cross arm flexible guide rail is arranged on the straight tower body, and the remaining cross arm flexible guide rails are arranged on the cross arms of the conductors of each layer of the straight tower; and a suspension clamp arranged along the straight tower height direction; the cross arm flexible guide rail comprises a first fixing seat arranged on the tower foot of the straight tower, and a connecting piece for connecting adjacent first fixing seats; through the cooperation between the vertical flexible guide rail and the cross arm flexible guide rail, and through the connection between the lock buckle worn on the body of the maintenance personnel and the stainless steel strands in the vertical flexible guide rail and the cross arm flexible guide rail, the maintenance personnel can move along the stainless steel strands in the straight tower height direction and the horizontal direction, so that the maintenance personnel can be prevented from falling.

Description

Technical Field

[0001] This invention relates to the technical field of power fittings, specifically to a fall protection device and a suspension clamp blowing device. Background Technology

[0002] Power fittings are metal accessories used in power lines to connect, fix, anchor, and protect conductors, ground wires, and towers. They are essential basic components of power transmission systems. They mainly include categories such as connection, tension, suspension, and protection, and must meet technical requirements of high strength, low resistance, corrosion resistance, and fatigue resistance to ensure the mechanical stress and electrical operation safety of the lines. They are widely used in power projects of all voltage levels.

[0003] For example, Chinese Patent Publication No. CN119834143A discloses an electrical fitting, including a base, a movable groove on the outer peripheral surface of the base, a movable ring that can rotate about the axis of the base; a bracket, the bracket is disposed on the outer wall of the movable ring and extends radially along the base, the bracket is provided with a mounting groove, a plurality of positioning holes are equidistantly provided at the bottom of the mounting groove, a plurality of slides are slidably sleeved on the bracket, and a fixing block is movably disposed on the slide along a direction perpendicular to the mounting groove, the fixing block includes a first end for inserting into the positioning hole and a second end for connecting and clamping a positioning clamp for holding the cable to be fixed.

[0004] However, existing power fittings still have some problems. Existing straight-line towers include not only the tower body but also the side branches installed on the tower body. Therefore, when it is necessary to maintain the tower body and side branches, workers need to climb to the designated position to complete the maintenance work. In this process, if only the interlocking between the workers and the tower body is relied upon, firstly, because the tower body is spliced ​​together from multiple intersecting steel members, there will be many obstacles in its movement. Secondly, most of the tower body is made of angled steel, with few fixed points, making it difficult for maintenance personnel to reach the designated position.

[0005] Therefore, how to enable maintenance personnel to climb the linear tower smoothly is a problem that needs to be solved. Summary of the Invention

[0006] This invention provides a fall protection device and a suspension clamp blowing device to solve the above-mentioned problems existing in the prior art.

[0007] A fall protection device, comprising:

[0008] Vertical flexible guide rails are installed along the height direction of the straight tower and on the straight tower.

[0009] The crossarm flexible guide rails are arranged horizontally along the straight tower, with one crossarm flexible guide rail arranged on the tower body and the remaining crossarm flexible guide rails arranged on the conductor crossarms of each layer of the straight tower.

[0010] A suspension clamp, positioned along the height of the straight tower, is used to limit the vertical flexible guide rail.

[0011] The crossarm flexible guide rail includes first fixed seats respectively disposed on the tower feet of the straight tower, and connecting members for connecting adjacent first fixed seats. The connecting members have the same structure and the crossarm flexible guide rail has a rectangular structure when viewed from above.

[0012] The vertical flexible guide rail includes a second fixed base disposed at the top and bottom of the straight tower, a second U-shaped ring movably connected to the second fixed base, a second tension clamp disposed on the second U-shaped ring, and a second stainless steel stranded wire for connecting the second tension clamp.

[0013] The straight tower is also equipped with multiple anti-sway rings;

[0014] Both the suspension clamp and the anti-sway ring abut against the second stainless steel stranded wire.

[0015] Furthermore, the connector includes a first U-shaped ring movably connected to one of the first fixed seats, a first stainless steel stranded wire connected to the first U-shaped ring, a first tension clamp connected to the first stainless steel stranded wire, and a turnbuckle connected to the first tension clamp.

[0016] The turnbuckle is connected to an adjacent first fixing seat;

[0017] Each of the first fixed seats is provided with a first U-shaped ring and a turnbuckle.

[0018] A suspension clamp blowing device is used to blow clean the suspension clamps in a fall arrestor, comprising:

[0019] A purge table, including a clamping mechanism disposed on the purge table, the purge table being used for placing a suspension clamp, and the clamping mechanism being used for fixing the position of the suspension clamp;

[0020] A lifting mechanism is installed on the purging platform;

[0021] The purging unit is connected to the lifting mechanism. The working area of ​​the purging unit is changed by the movement of the lifting mechanism to purify the through holes or blind holes on the suspension clamp.

[0022] Both the clamping mechanism and the lifting mechanism are existing technologies. The clamping mechanism is used to fix the position of the suspension clamp; the lifting mechanism is used to adjust the position of the purging unit.

[0023] Furthermore, the purging unit includes an air injection assembly connected to the lifting mechanism, a switching unit connected to the air injection assembly, and an execution unit connected to the switching unit.

[0024] During the through-hole purging operation, gas can not only be ejected circumferentially from the gas injection component, but also rotate as the actuator passes through the through hole, thereby cleaning the inner wall of the through hole.

[0025] During blind hole purging, the actuator contacts the bottom of the blind hole. As the actuator rotates, the gas can switch directions and be ejected from the axial direction of the gas injection assembly to contact the bottom of the blind hole, thus avoiding gas blockage.

[0026] Furthermore, the air injection assembly includes a connecting seat connected to the lifting mechanism, an air inlet seat disposed at one end of the connecting seat, a connecting block located in the air inlet seat and rotatably connected to the air inlet seat, a rotating shaft connected to the connecting block, an air injection part sleeved on the rotating shaft and located between the connecting seat and the rotating shaft, and a connecting shaft connected to the rotating shaft.

[0027] Furthermore, the gas injection assembly also includes a first transition seat disposed at the other end of the connecting seat and sleeved on the connecting shaft, a second transition seat sleeved on the connecting shaft and movably connected to the connecting shaft, and a plurality of support rods evenly disposed on the end face of the second transition seat.

[0028] The other end of the support rod is connected to the switching unit;

[0029] The first transition seat is provided with a plurality of first air holes, and the second transition seat is provided with a plurality of second air holes along the axial direction.

[0030] Furthermore, the air injection unit includes a chamber disposed in the air inlet seat, a communicating groove communicating with the chamber, a connecting pipe sleeved on the rotating shaft, three placement grooves opened in the circumference of the rotating shaft and extending toward the axis of the rotating shaft, a fitting plate located in the placement groove, and a plurality of first air inlets and a plurality of second air inlets disposed on the connecting pipe.

[0031] The connecting groove communicates with the space between the connecting pipe and the connecting seat, and is used to transport gas into the connecting pipe.

[0032] Furthermore, the fitting plate divides the connecting pipe into three regions of different areas, and the area of ​​each region decreases continuously along the direction of rotation of the axis of rotation. The region with the largest area is connected to the first air inlet, and the second air inlet is located in the region with the smallest area. Gas is discharged from the connecting pipe through the second air inlet and is discharged from the space between the connecting pipe and the connecting seat through the first air hole on the first transition seat.

[0033] Furthermore, the switching unit includes an exhaust seat connected to the connecting seat, a connecting rod disposed on the execution unit, a support block connected to one end of the connecting rod, an L-shaped conveying hole opened on the support block, and an annular first channel opened on the exhaust seat pipe wall;

[0034] The outer wall of the execution unit and the inner wall of the exhaust seat are provided with a third channel, and a second channel is provided on the exhaust seat to connect the first channel and the third channel.

[0035] Furthermore, the execution unit includes a limiting seat disposed in the exhaust seat, the other end of the connecting rod passing through the limiting seat and extending a certain distance out of the exhaust seat, an abutment block disposed at the other end of the connecting rod, a support spring for connecting the abutment block and the exhaust seat, a limiting ear disposed in the connecting rod, and a return spring for connecting the limiting ear and the limiting seat.

[0036] A gas flow gap is reserved between the connecting rod and the exhaust seat;

[0037] The support block is connected to the support rod.

[0038] Beneficial Effects: This invention discloses a fall protection device and a suspension clamp blowing device. Through the cooperation between the vertical flexible guide rail and the crossarm flexible guide rail, when maintenance personnel are performing maintenance work on the straight-line tower, the buckle worn by the maintenance personnel connects to the stainless steel stranded wire in the vertical and crossarm flexible guide rails. This allows the maintenance personnel to move along the stainless steel stranded wire in both the height and horizontal direction of the straight-line tower, enabling them to smoothly reach the designated maintenance area and complete the corresponding straight-line tower maintenance work. Simultaneously, the stainless steel stranded wire and the buckle worn by the maintenance personnel prevent them from slipping and falling, ensuring their safety. Furthermore, the blowing device can clean the inner walls or threads of blind holes or through holes on different types of suspension clamps, avoiding air blockage during blind hole cleaning and ensuring smooth hole cleaning. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the installation of a fall protection device according to the present invention;

[0040] Figure 2This is a schematic diagram of the flexible guide rail structure of the crossarm of the present invention;

[0041] Figure 3 This is a schematic diagram of the suspension clamp structure of the present invention;

[0042] Figure 4 This is a schematic diagram of the flexible guide rail for the crossarm of the present invention;

[0043] Figure 5 This is a schematic diagram of the vertical flexible guide rail structure of the present invention;

[0044] Figure 6 This is a schematic diagram of the purging device structure of the present invention;

[0045] Figure 7 This is a schematic diagram of the purging unit structure of the present invention;

[0046] Figure 8 This is a cross-sectional view of the purging unit of the present invention;

[0047] Figure 9 This is a schematic diagram of the gas injection section structure of the present invention;

[0048] Figure 10 This is a schematic diagram of the gas injection section of the present invention;

[0049] Figure 11 This is a schematic diagram of the switching unit of the present invention;

[0050] Figure 12 This is a cross-sectional view of the switching unit of the present invention;

[0051] Figure 13 This is a schematic diagram of the execution unit of the present invention.

[0052] Reference numerals: 1. Straight-line tower; 2. Crossarm flexible guide rail; 21. First fixed seat; 22. First U-shaped ring; 23. First stainless steel stranded wire; 24. First tension clamp; 25. Turnbuckle; 26. Hook feeder; 3. Vertical flexible guide rail; 31. Second fixed seat; 32. Second U-shaped ring; 33. Second tension clamp; 34. Anti-sway ring; 35. Second stainless steel stranded wire; 4. Suspension clamp; 5. Blowing table; 6. Lifting mechanism; 7. Blowing unit; 71. Air injection assembly; 711. Connecting seat; 712. Air inlet seat; 713. Connecting block; 714. Rotating shaft; 71 5. Connecting shaft; 716. First transition seat; 717. Second transition seat; 718. Support rod; 719. Air injection section; 7191. Connecting groove; 7192. Connecting pipe; 7193. First air inlet; 7194. Second air inlet; 7195. Fitting plate; 72. Switching unit; 721. Support block; 722. Conveying hole; 723. First channel; 724. Connecting rod; 725. Exhaust seat; 726. Third channel; 73. Execution unit; 731. Limiting ear; 732. Return spring; 733. Support spring; 734. Abutment block; 735. Limiting seat. Detailed Implementation

[0053] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0054] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0055] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0056] This invention discloses a fall prevention device and a suspension clamp blowing device, with reference to Figures 1-13 ,include:

[0057] A vertical flexible guide rail 3 is installed along the height direction of the straight tower 1 and on the straight tower 1; a crossarm flexible guide rail 2 is arranged horizontally along the straight tower 1, with one crossarm flexible guide rail 2 located on the tower body of the straight tower 1 and the remaining crossarm flexible guide rails 2 arranged on the conductor crossarms of each layer of the straight tower 1; a suspension clamp 4 is installed along the height direction of the straight tower 1 to limit the vertical flexible guide rail 3; the crossarm flexible guide rail 2 includes a first fixing seat 21 respectively installed on the tower feet of the straight tower 1 for connecting adjacent first fixing seats 21. The connecting components have the same structure, and the crossarm flexible guide rail 2 has a rectangular structure when viewed from above; the vertical flexible guide rail 3 includes a second fixed base 31 disposed at the top and bottom of the linear tower 1, a second U-shaped ring 32 movably connected to the second fixed base 31, a second tension clamp 33 disposed on the second U-shaped ring 32, and a second stainless steel stranded wire 35 for connecting the second tension clamp 33; the linear tower 1 is also provided with a plurality of anti-sway rings 34; the suspension clamp 4 and the anti-sway rings 34 both abut against the second stainless steel stranded wire 35.

[0058] When the installation of the linear tower 1 is completed, the second fixed base 31, the second U-shaped ring 32, the second tension clamp 33, the second stainless steel stranded wire 35, and the anti-sway ring 34 are installed in sequence at the corresponding positions of the linear tower 1. Then, when the maintenance personnel need to move in the height direction of the linear tower 1, the buckle on the maintenance personnel is fitted onto the second stainless steel stranded wire 35. Through the connection between the buckle and the second stainless steel stranded wire 35, the maintenance personnel can move in the height direction of the linear tower 1 along the installation direction of the vertical flexible guide rail 3, so that they can move to the predetermined position.

[0059] The vertical flexible guide rail 3 runs continuously from the top to the bottom of the tower, and the second stainless steel stranded wire 35 is continuous without any breaks. The locking buckle is always engaged with the stranded wire during the entire movement of maintenance personnel, and there is no dangerous section without a safety hook point during the climb. Unlike the traditional single-point hook method, there is no need to repeatedly remove and install the safety belt during the up and down movement, and there is no risk of temporary loss of protection and fall.

[0060] The vertical flexible guide rail 3 relies on two second fixed seats 31 at the top and bottom of the tower as anchoring bases. It is equipped with a second U-shaped ring 32 and a second tension clamp 33 to lock the stainless steel stranded wire. It can be pre-stretched to the standard tension, and the stranded wire is taut and not loose. It is not easy to sag or deform after being stepped on or pulled by personnel, and it is not easy to collapse after long-term use. The stainless steel stranded wire is a flexible component. When the straight tower 1 is subjected to wind force and load, the stranded wire can adapt to the slight deformation. Unlike rigid rails, it will not crack due to stress concentration caused by slight deformation of the tower body. It is resistant to wind vibration and fatigue in the long term outdoors and is suitable for the complex working conditions of transmission towers in the field. Multiple sets of first fixed seats 21 at the tower feet are connected by connectors of uniform specifications, forming a rectangular closed-loop stranded wire frame when viewed from above. The force is balanced on all four sides, and the overall tilt of the guide rail will not be caused by personnel pulling on one side. The connectors of uniform specifications reduce the difficulty of on-site assembly. The parts are universal and easy to construct and replace and maintain later.

[0061] The connector includes a first U-shaped ring 22 movably connected to one of the first fixed seats 21, a first stainless steel stranded wire 23 connected to the first U-shaped ring 22, a first tension clamp 24 connected to the first stainless steel stranded wire 23, and a turnbuckle 25 connected to the first tension clamp 24; the turnbuckle 25 is connected to an adjacent first fixed seat 21; each first fixed seat 21 is provided with a first U-shaped ring 22 and a turnbuckle 25; the straight tower 1 is also provided with a hook 26 that abuts against the first stainless steel stranded wire 23;

[0062] When it is necessary to move the linear tower 1 in the horizontal direction, the latch is connected to the first stainless steel strand 23, so that the maintenance personnel can move on the linear tower 1 along the arrangement direction of the crossarm flexible guide rail 2 on the linear tower 1, thereby completing the maintenance work of the linear tower 1.

[0063] Turnbuckle 25 is connected in series between tension clamp and adjacent fixing seat. During construction, turnbuckle 25 can be rotated to tighten or loosen the first stainless steel strand 23 in real time, precisely controlling the tension of the entire crossarm guide rail, avoiding slack and excessive swaying of the steel strand, ensuring that the guide rail is straight when personnel walk, and that the locking buckle slides smoothly without jamming. After maintenance personnel reach the corresponding floor height, the safety belt buckle can be directly attached to the first stainless steel strand 23, and they can move horizontally along the tower body and each floor of the crossarm, directly reaching the remote work points such as conductors, insulators and hardware, solving the pain point of traditional iron towers lacking continuous safety attachment points in the horizontal direction and the difficulty in reaching the far end of the crossarm. After personnel reach the target crossarm height along the vertical flexible guide rail 3, they can directly switch the safety buckle from the vertical second stainless steel strand 35 to the horizontal first stainless steel strand 23 without additional disassembly and assembly of the safety belt attachment point, quickly switching to the horizontal walking mode, reducing the operation steps of disassembling and assembling protective equipment at high altitudes, shortening the maintenance operation time, and reducing the safety hazards caused by frequent disassembly and assembly at high altitudes.

[0064] A purging device for a suspension clamp 4 includes: a purging table 5, including a clamping mechanism disposed on the purging table 5, the purging table 5 being used to place the suspension clamp 4, and the clamping mechanism being used to fix the position of the suspension clamp 4; a lifting mechanism 6 disposed on the purging table 5; and a purging unit 7 connected to the lifting mechanism 6, the working area of ​​the purging unit 7 being changed by the movement of the lifting mechanism 6 to purify the through holes or blind holes on the suspension clamp 4; through the purging device, the inner walls or threads of blind holes or through holes on different types of suspension clamps 4 can be purged, and air blockage can be avoided when purging blind holes, ensuring the smooth progress of hole cleaning work.

[0065] The purging unit 7 includes an air injection assembly 71 connected to the lifting mechanism 6, a switching unit 72 connected to the air injection assembly 71, and an execution unit 73 connected to the switching unit 72. When purging through holes, gas can not only be ejected circumferentially from the air injection assembly 71, but also rotate as the execution unit 73 passes through the through hole, thereby cleaning the inner wall of the through hole. When purging blind holes, the execution unit 73 contacts the bottom of the blind hole, and as the execution unit 73 rotates, the gas can switch directions and be ejected from the axial direction of the air injection assembly 71, contacting the bottom of the blind hole to avoid air blockage.

[0066] The air injection assembly 71 includes a connecting seat 711 connected to the lifting mechanism 6, an air inlet seat 712 disposed at one end of the connecting seat 711, a connecting block 713 located in the air inlet seat 712 and rotatably connected to the air inlet seat 712, a rotating shaft 714 connected to the connecting block 713, an air injection part 719 sleeved on the rotating shaft 714 and located between the connecting seat 711 and the rotating shaft 714, and a connecting shaft 715 connected to the rotating shaft 714.

[0067] The air injection assembly 71 further includes a first transition seat 716 disposed at the other end of the connecting seat 711 and sleeved on the connecting shaft 715, a second transition seat 717 sleeved on the connecting shaft 715 and movably connected to the connecting shaft 715, and a plurality of support rods 718 evenly disposed on the end face of the second transition seat 717; the other end of the support rods 718 is connected to the switching unit 72; the first transition seat 716 is provided with a plurality of first air holes, and the second transition seat 717 is provided with a plurality of second air holes in the axial direction; the air injection part 719 includes a first transition seat 71 disposed at the air inlet seat 71. The chamber in section 2 includes a connecting groove 7191 that connects to the chamber, a connecting pipe 7192 fitted on the rotating shaft 714, three placement grooves extending circumferentially towards the axis of the rotating shaft 714, a fitting plate 7195 located in the placement grooves, and multiple first air inlets 7193 and multiple second air inlets 7194 provided on the connecting pipe 7192. The connecting groove 7191 communicates with the space between the connecting pipe 7192 and the connecting seat 711, and is used to deliver gas to the connecting pipe 7192. The connecting seat 711 is provided with an air jet hole.

[0068] When purging is required, the air pump and pipeline work together to allow gas to enter the cavity in the air inlet 712. The gas then flows through the connecting groove 7191 into the space, and then through the first air inlet 7193 on the connecting pipe 7192 into the space between the connecting pipe 7192 and the rotating shaft 714. Due to the different distances between the fitting plate 7195 on the rotating shaft 714 and the connecting pipe 7192, once the space between the connecting pipe 7192 and the rotating shaft 714 is filled with gas, the gas will then interact with the longest fitting plate 715 extending from the rotating shaft 714. The 95 contact is pushed by the mating plate 7195, which drives the rotating shaft 714 to rotate. As the rotating shaft 714 rotates, the mating plate 7195 will gradually retract into the rotating shaft 714. The area between the mating plate 7195, the rotating shaft 714 and the connecting pipe 7192 gradually decreases. At this time, the gas is discharged from the second air inlet 7194 and discharged through the first air hole on the first transition seat 716. Then the gas can enter the switching unit 72. At this time, the gas can be ejected from the jet hole, which can then blow the inner wall of the hole.

[0069] At the same time, the movement of airflow drives the connecting shaft 715 to rotate, which in turn causes the abutment block 734 to move, thereby enabling the cleaning of the inner wall and bottom of the hole and ensuring the smooth progress of the blind hole purging operation.

[0070] Conventional external motor-driven nozzles suffer from misalignment in motor start / stop, speed, and air pump jet timing, easily leading to continuous jetting even when the nozzle doesn't rotate, resulting in localized debris accumulation. This structure uses the air supply as both the purging medium and the rotational power source; it rotates when air is supplied and stops when air is cut off, ensuring complete synchronization between air jetting and 360° rotation, eliminating localized missed areas. When the nozzle rotates at high speed, the airflow is deflected outwards by centrifugal force, easily creating purging blind spots at the bottom of blind holes. This solution addresses this by using layered buffering and pressure stabilization in the first and second transition seats 717, and multiple support rods 718 to evenly distribute axial airflow, counteracting the airflow eccentricity caused by rotation. Even in deep and narrow blind holes, the airflow pressure at the center of the hole bottom remains balanced, making it specifically suited for narrow, enclosed cavities like the 4-hole deep micro-hole of the suspension clamp.

[0071] The fitting plate 7195 divides the connecting pipe 7192 into three regions of different areas, and the area of ​​each region decreases continuously along the direction of rotation of the rotation axis 714. The region with the largest area is connected to the first air inlet 7193, and the second air inlet 7194 is located in the region with the smallest area. Gas is discharged from the connecting pipe 7192 through the second air inlet 7194 and discharged from the space between the connecting pipe 7192 and the connecting seat 711 through the first air hole on the first transition seat 716.

[0072] The switching unit 72 includes an exhaust seat 725 connected to the connecting seat 711, a connecting rod 724 disposed on the execution unit 73, a support block 721 connected to one end of the connecting rod 724, an L-shaped conveying hole 722 opened on the support block 721, and an annular first channel 723 opened on the pipe wall of the exhaust seat 725; the outer wall of the execution unit 73 and the inner wall of the exhaust seat 725 are provided with a third channel 726, and a second channel for connecting the first channel 723 and the third channel 726 and disposed on the exhaust seat 725; by controlling the position of the second transition seat 717, the first channel 723, the second channel and the third channel 726 are connected, thereby changing the direction of airflow and completing the purging work of the blind hole.

[0073] The execution unit 73 includes a limiting seat 735 disposed in the exhaust seat 725, the other end of the connecting rod 724 passing through the limiting seat 735 and extending a certain distance out of the exhaust seat 725, an abutment block 734 disposed at the other end of the connecting rod 724, a support spring 733 for connecting the abutment block 734 and the exhaust seat 725, a limiting ear 731 disposed in the connecting rod 724, and a return spring 732 for connecting the limiting ear 731 and the limiting seat 735; a gas flow gap is reserved between the connecting rod 724 and the exhaust seat 725; when the abutment block 734 contacts the bottom of the blind hole Then, the abutment block 734 approaches the limiting seat 735. At this time, the moving abutment block 734 can drive the support block 721 to move through the movement of the connecting rod 724. Then, the moving support block 721 can drive the second transition seat 717 to move on the connecting shaft 715 through the set support rod 718. At this time, the second transition seat 717 blocks the jet hole, and the first channel 723, the second channel and the third channel 726 are connected. At this time, the gas can be ejected from the third channel 726 to the exhaust seat 725, thereby completing the blowing and cleaning of the blind hole. A long flat key is provided between the connecting shaft 715 and the second transition seat 717.

[0074] The long flat key provides a long-distance stable guide. When the abutment block 734 fits against the bottom of the blind hole, the second transition seat 717 can slide to close the lateral jet hole simultaneously. The gas no longer disperses to the surrounding walls of the hole, and all the airflow is turned axially to the bottom of the hole. There will be no superposition of lateral jet and axial jet at the same time. High-pressure air masses will not accumulate inside the closed blind hole. The dispersed impurities can be discharged outward along the airflow gap between the connecting rod 724 and the exhaust seat 725, ensuring smooth purging of the bottom of the hole.

[0075] Working principle description: When installing the linear tower 1, the second fixed base 31, the second U-shaped ring 32, the second tension clamp 33, the second stainless steel stranded wire 35, and the anti-sway ring 34 are installed sequentially at the corresponding positions on the linear tower 1. Then, when maintenance personnel need to move the linear tower 1 in the height direction, the buckle on the maintenance personnel is fitted onto the second stainless steel stranded wire 35. Through the connection between the buckle and the second stainless steel stranded wire 35, the maintenance personnel can move along the installation direction of the vertical flexible guide rail 3 in the height direction of the linear tower 1 to the predetermined position. When it is necessary to move the linear tower 1 in the horizontal direction, the buckle is connected to the first stainless steel stranded wire 23, and the maintenance personnel can move along the arrangement direction of the crossarm flexible guide rail 2 on the linear tower 1 to complete the maintenance work of the linear tower 1.

[0076] When purging is required, the air pump and pipeline work together to allow gas to enter the cavity in the air inlet 712. The gas then flows through the connecting groove 7191 into the space, and then through the first air inlet 7193 on the connecting pipe 7192 into the space between the connecting pipe 7192 and the rotating shaft 714. Due to the different distances between the fitting plate 7195 on the rotating shaft 714 and the connecting pipe 7192, once the space between the connecting pipe 7192 and the rotating shaft 714 is filled with gas, the gas will then interact with the longest fitting plate 715 extending from the rotating shaft 714. The 95 contact is pushed by the mating plate 7195, which drives the rotating shaft 714 to rotate. As the rotating shaft 714 rotates, the mating plate 7195 will gradually retract into the rotating shaft 714. The area between the mating plate 7195, the rotating shaft 714 and the connecting pipe 7192 gradually decreases. At this time, the gas is discharged from the second air inlet 7194 and discharged through the first air hole on the first transition seat 716. Then the gas can enter the switching unit 72. At this time, the gas can be ejected from the jet hole, which can then blow the inner wall of the hole.

[0077] Simultaneously, the airflow drives the connecting shaft 715 to rotate, which in turn moves the abutment block 734, thus cleaning the inner wall and bottom of the hole and ensuring the smooth progress of the blind hole purging operation. When the abutment block 734 contacts the bottom of the blind hole, it approaches the limiting seat 735. The moving abutment block 734 can then drive the support block 721 to move through the movement of the connecting rod 724. The moving support block 721, through the support rod 718, can drive the second transition seat 717 to move on the connecting shaft 715. At this time, the second transition seat 717 blocks the jet hole, connecting the first channel 723, the second channel, and the third channel 726. Gas can then be ejected from the third channel 726 to the exhaust seat 725, thereby completing the purging operation of the blind hole.

[0078] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A fall protection device, characterized in that, include: A vertical flexible guide rail (3) is installed on the straight tower (1) along the height direction of the straight tower (1); The crossarm flexible guide rail (2) is arranged horizontally along the straight tower (1), with one crossarm flexible guide rail (2) arranged on the tower body of the straight tower (1), and the remaining crossarm flexible guide rails (2) are arranged on the conductor crossarms of each layer of the straight tower (1); A suspension clamp (4) is provided in the height direction of the straight tower (1) to limit the vertical flexible guide rail (3); The crossarm flexible guide rail (2) includes a first fixed seat (21) respectively set on the tower foot of the straight tower (1), and a connector for connecting adjacent first fixed seats (21). The connectors have the same structure and the crossarm flexible guide rail (2) is a rectangular structure when viewed from above. The vertical flexible guide rail (3) includes a second fixed seat (31) disposed at the top and bottom of the straight tower (1), a second U-shaped ring (32) movably connected to the second fixed seat (31), a second tension clamp (33) disposed on the second U-shaped ring (32), and a second stainless steel stranded wire (35) for connecting the second tension clamp (33). The straight tower (1) is also equipped with multiple anti-sway rings (34); The suspension clamp (4) and the anti-sway ring (34) both abut against the second stainless steel strand (35).

2. The fall arrestor according to claim 1, characterized in that: The connector includes a first U-shaped ring (22) movably connected to one of the first fixed seats (21), a first stainless steel stranded wire (23) connected to the first U-shaped ring (22), a first tension clamp (24) connected to the first stainless steel stranded wire (23), and a turnbuckle (25) connected to the first tension clamp (24). The turnbuckle (25) is connected to an adjacent first fixing seat (21); A first U-shaped ring (22) and a turnbuckle (25) are respectively provided on a first fixed seat (21).

3. A purging device for a suspension clamp (4), used for purging the suspension clamp (4) in a fall arrestor as described in any one of claims 1 to 2, characterized in that, include: The purge table (5) includes a clamping mechanism disposed on the purge table (5). The purge table (5) is used for placing the suspension clamp (4). The clamping mechanism is used to fix the position of the suspension clamp (4). A lifting mechanism (6) is installed on the blowing table (5); The purging unit (7) is connected to the lifting mechanism (6). The working area of ​​the purging unit (7) is changed by the movement of the lifting mechanism (6) to purify the through holes or blind holes on the suspension clamp (4).

4. The suspension clamp (4) purging device according to claim 3, characterized in that: The purging unit (7) includes an air injection assembly (71) connected to the lifting mechanism (6), a switching unit (72) connected to the air injection assembly (71), and an execution unit (73) connected to the switching unit (72). During the through-hole purging operation, gas can not only be ejected from the circumferential direction of the gas injection assembly (71), but also rotate as the execution unit (73) passes through the through hole, thereby cleaning the inner wall of the through hole; During the blind hole purging operation, the actuator (73) contacts the bottom of the blind hole. As the actuator (73) rotates, the gas can switch directions and be ejected from the axial direction of the gas injection assembly (71) to contact the bottom of the blind hole, thus avoiding the formation of air blockage.

5. The suspension clamp (4) purging device according to claim 4, characterized in that: The air injection assembly (71) includes a connecting seat (711) connected to the lifting mechanism (6), an air inlet seat (712) disposed at one end of the connecting seat (711), a connecting block (713) located in the air inlet seat (712) and rotatably connected to the air inlet seat (712), a rotating shaft (714) connected to the connecting block (713), an air injection part (719) sleeved on the rotating shaft (714) and located between the connecting seat (711) and the rotating shaft (714), and a connecting shaft (715) connected to the rotating shaft (714).

6. The suspension clamp (4) purging device according to claim 5, characterized in that: The gas injection assembly (71) further includes a first transition seat (716) disposed at the other end of the connecting seat (711) and sleeved on the connecting shaft (715), a second transition seat (717) sleeved on the connecting shaft (715) and movably connected to the connecting shaft (715), and a plurality of support rods (718) evenly disposed on the end face of the second transition seat (717). The other end of the support rod (718) is connected to the switching unit (72); The first transition seat (716) is provided with a plurality of first air holes, and the second transition seat (717) is provided with a plurality of second air holes in the axial direction.

7. The suspension clamp (4) purging device according to claim 6, characterized in that: The air injection unit (719) includes a chamber disposed in the air inlet seat (712), a connecting groove (7191) communicating with the chamber, a connecting pipe (7192) sleeved on the rotating shaft (714), three placement grooves opened in the circumference of the rotating shaft (714) and extending toward the axis of the rotating shaft (714), a fitting plate (7195) located in the placement groove, and a plurality of first air inlets (7193) and a plurality of second air inlets (7194) disposed on the connecting pipe (7192). The connecting groove (7191) communicates with the space between the connecting pipe (7192) and the connecting seat (711) and is used to transport gas into the connecting pipe (7192).

8. A purging device for a suspension clamp (4) according to claim 7, characterized in that: The interlocking plate (7195) divides the connecting pipe (7192) into three regions with different areas. The area of ​​each region decreases continuously along the direction of rotation of the axis (714). The region with the largest area is connected to the first air inlet (7193), and the second air inlet (7194) is located in the region with the smallest area. Gas is discharged from the connecting pipe (7192) through the second air inlet (7194) and discharged from the space between the connecting pipe (7192) and the connecting seat (711) through the first air hole on the first transition seat (716).

9. A purging device for a suspension clamp (4) according to claim 8, characterized in that: The switching unit (72) includes an exhaust seat (725) connected to the connecting seat (711), a connecting rod (724) disposed on the execution unit (73), a support block (721) connected to one end of the connecting rod (724), an L-shaped conveying hole (722) opened on the support block (721), and an annular first channel (723) opened on the pipe wall of the exhaust seat (725). The outer wall of the execution unit (73) and the inner wall of the exhaust seat (725) are provided with a third channel (726), and a second channel for connecting the first channel (723) and the third channel (726) and disposed on the exhaust seat (725).

10. A purging device for a suspension clamp (4) according to claim 9, characterized in that: The execution unit (73) includes a limiting seat (735) disposed in the exhaust seat (725), the other end of the connecting rod (724) passing through the limiting seat (735) and extending a certain distance out of the exhaust seat (725), an abutment block (734) disposed at the other end of the connecting rod (724), a support spring (733) for connecting the abutment block (734) and the exhaust seat (725), a limiting ear (731) disposed in the connecting rod (724), and a return spring (732) for connecting the limiting ear (731) and the limiting seat (735). A gas flow gap is reserved between the connecting rod (724) and the exhaust seat (725).

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