Maintenance auxiliary device for power transmission line

Abstract

An electric power transmission line maintenance auxiliary device disclosed by the present invention comprises a first straight ladder, a mounting plate is mounted at the bottom of the rear side of the first straight ladder through a rotary connecting piece, the two ends of the rear side of the mounting plate are respectively provided with a fixing plate, and a bidirectional lead screw is rotatably connected between the two fixing plates. The two ends of the bidirectional lead screw are in threaded connection with corresponding nut seats respectively, one side of each of the two nut seats is fixedly connected with an arc-shaped clamping plate, and the opening parts of the two arc-shaped clamping plates are oppositely arranged. The two ends of the bidirectional lead screw are in threaded connection with the corresponding nut seats respectively, and the opening parts of the two arc-shaped clamping plates are oppositely arranged. The electric pole clamping device is simple in structure and drives the arc-shaped clamping plates fixedly connected with the electric pole clamping device to move synchronously, so that openings of the two sets of arc-shaped clamping plates are gradually close to each other, the electric pole is clamped, it is ensured that the centers of the two sets of arc-shaped clamping plates coincide with the center of the first straight ladder, and deviation to one side during use is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary equipment for power transmission line maintenance, and specifically provides an auxiliary device for power transmission line maintenance. Background Art

[0002] During the operation of the power system, the power transmission line is an important part of electric energy transmission. To ensure the normal use of the power transmission line, power workers need to regularly inspect the power transmission line to promptly detect abnormal phenomena such as line aging or foreign objects.

[0003] According to the Chinese patent with the publication number CN218828772U, an auxiliary equipment for power transmission line maintenance is disclosed, which includes a straight ladder. A fixing frame is fixedly connected to the outer surface of the upper end of the straight ladder. A circular groove is formed in the inner surface of the right side of the fixing frame. A rotating shaft is rotatably connected to the inner surface of the circular groove on the right side of the fixing frame. A rotating plate is fixedly connected to the outer circular surface of the rotating shaft. A first sliding groove is formed in the outer surface of the lower end of the rotating plate. A connecting block is slidably connected to the inner surface of the first sliding groove at the lower end of the rotating plate. A fixing plate is fixedly connected to the outer surface of the lower end of the connecting block. A groove is formed in the outer surface of the left side of the fixing plate. A telescopic block is slidably connected to the inner surface of the groove on the left side of the fixing plate. This auxiliary equipment for power transmission line maintenance has the advantage of being able to fix the straight ladder on the utility pole, solving the problem that there is a risk of slipping after the top of the straight ladder stops at the utility pole, and once the straight ladder slips, it will endanger the lives of maintenance personnel who are performing line maintenance.

[0004] The above-mentioned auxiliary equipment for power transmission line maintenance has some problems in use. If the moving distances of the two groups of connecting blocks on the surface of the threaded rod are different, it is very likely that the centers of the two groups of fixing plates do not coincide with the center of the straight ladder, and when maintenance personnel climb the ladder, it is very likely that the center of gravity will shift. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary device for power transmission line maintenance to solve the problem that the moving distances of the two groups of connecting blocks on the surface of the threaded rod are different, which is very likely to cause the centers of the two groups of fixing plates not to coincide with the center of the straight ladder, and when maintenance personnel climb the ladder, it is very likely that the center of gravity will shift as mentioned in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An overhaul auxiliary device for a power transmission line includes a first straight ladder, above which a second straight ladder is provided. At the top of the front side of the first straight ladder, a hinge is fixedly connected, and the rotating end of the hinge is fixedly connected to the bottom of the front side of the second straight ladder. At the bottom of the front side of one group of vertical rods of the first straight ladder, there is a limiting member for limiting the second straight ladder when the second straight ladder is flipped to one side of the first straight ladder; a mounting plate, which is installed at the bottom of the rear side of the first straight ladder through a rotating connecting member. At both ends of the rear side of the mounting plate, fixing plates are respectively provided. Between the two fixing plates, a bidirectional lead screw is rotatably connected. The two ends of the bidirectional lead screw are respectively threadedly connected with corresponding nut seats. On one side of each of the two nut seats, an arc-shaped clamping plate is fixedly connected. The mouths of the two arc-shaped clamping plates are arranged oppositely; a locking component, which is installed in the middle of the mounting plate and is used to prevent the bidirectional lead screw from rotating; wherein

[0008] At the top of the first straight ladder, there is a strengthening member for enhancing the connection strength with the second straight ladder when the second straight ladder is flipped along the hinge to the upper part of the first straight ladder.

[0009] Preferably, the locking component includes a ratchet ring fixedly sleeved on the middle surface of the bidirectional lead screw. A through hole is opened on the middle surface of the mounting plate. A butting block is inserted into the mouth of the through hole close to the ratchet ring. One end of the butting block can be inserted between the ratchet teeth on the surface of the ratchet ring. The other end of the butting block is fixedly connected with an internally threaded tube. The internally threaded tube passes through the other mouth of the through hole and is fixedly connected with an anti-disengagement member for preventing the butting block from disengaging from the inner cavity of the through hole. A second spring is sleeved on the surface of the internally threaded tube located in the inner cavity of the through hole. One end of the second spring abuts against the surface of the butting block, and the other end of the second spring abuts against the surface of the anti-disengagement member;

[0010] The rotating connecting member includes a U-shaped frame slidably connected to the lower parts of both sides of the first straight ladder. At both ends of one side of the two U-shaped frames facing each other, connecting blocks are fixedly connected. In the middle of the opposite sides of the two connecting blocks, fixed columns are rotatably connected. The opposite ends of the two fixed columns are respectively fixedly connected to the corresponding sides of the mounting plate. In the inner cavities of the two U-shaped frames, there are connecting members for connecting the corresponding sides of the first straight ladder;

[0011] The limiting member includes a circular cavity opened inside the other end of one set of the U-shaped frames. One end of the circular cavity is slidably connected with a limiting disc. One side of the limiting disc is fixedly connected with a connecting rod. One end of the connecting rod penetrates through the inner wall of the corresponding circular cavity and extends to the outside of the U-shaped frame. A first spring is sleeved on the surface of the connecting rod located inside the circular cavity. The first spring contacts one side surface of the limiting disc and one side inner wall of the circular cavity respectively. One end of the connecting rod located outside the U-shaped frame is fixedly connected with a connecting strip. A first pull ring is fixedly connected to the outer surface of the connecting strip. A limiting strip is fixedly connected to the inner side of the end of the connecting strip away from the U-shaped frame.

[0012] Preferably, the anti-disengagement member includes a connecting piece arranged on one side of the mounting plate. One side of the connecting piece is provided with a detachable connecting member for connecting the orifice of the through hole. One end of the internal thread tube penetrates through the connecting piece. A threaded rod is threadedly connected to the orifice of the internal thread tube penetrating through the connecting piece. One end of the threaded rod is fixedly connected with a circular ring. The circular ring abuts against the surface of the connecting piece.

[0013] Preferably, the connecting member includes T-shaped grooves opened on the lower surfaces of both sides of the first straight ladder. T-shaped blocks are respectively slidably connected to the inner cavities of the two T-shaped grooves. First bolts are respectively threadedly connected to the middle parts of the opposite sides of the two U-shaped frames. One ends of the two first bolts respectively threadedly penetrate through the corresponding U-shaped frames and the T-shaped blocks in sequence and abut against the inner cavities of the T-shaped grooves.

[0014] Preferably, the detachable connecting member includes a threaded ring fixedly connected to the middle of the connecting piece. The connecting piece is threadedly connected to the orifice of the through hole through the threaded ring. One end of the second spring abuts against one end surface of the threaded ring.

[0015] Preferably, the reinforcing member includes chutes on both sides of the opposite ends of the first straight ladder and the second straight ladder. Limiting plates are respectively slidably connected to the inner cavities of the chutes located on both sides of the first straight ladder. Fixing members are provided on the surface of the second straight ladder for fixing the limiting plates to prevent the limiting plates from disengaging from the chutes on both sides of the second straight ladder.

[0016] Preferably, the fixing member includes limiting holes opened at the lower part at the rear side of the second straight ladder. Connecting square bars are respectively fixedly connected to the opposite side surfaces of the two limiting plates. Anti-bending plates are respectively fixedly connected to one ends of the two connecting square bars. One ends of the two anti-bending plates extend inwards relatively. The two anti-bending plates can slide up and down along the rear side of the first straight ladder. Nuts are respectively fixedly connected to the tops of the outer sides of the two anti-bending plates. Second bolts are respectively threadedly connected to the inner cavities of the two nuts. When one end at the top of the limiting plate is inserted into the limiting groove of the second straight ladder, one end of the second bolt threadedly penetrates through the anti-bending plate and is inserted into the inner cavity of the limiting hole.

[0017] Preferably, square holes are respectively formed in the front side surfaces of the two vertical rods of the second straight ladder. The two square holes on the same side are arranged vertically. A shoulder strap is arranged in the inner cavities of the two square holes on the same side. One end of the shoulder strap sequentially passes through the two square holes on the same side and is sewn together with the other end.

[0018] Preferably, connecting columns are respectively rotatably connected to the upper parts of the opposite sides of the two vertical rods of the second straight ladder. A group of arc-shaped plates are fixedly connected between the two connecting columns. A first rubber pad is bonded to the arc surface of the arc-shaped plate.

[0019] Preferably, second rubber pads are respectively bonded to the inner arc surfaces of the two arc-shaped clamping plates.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. Through the settings of the hinge and the bidirectional lead screw, the first straight ladder and the second straight ladder are connected by the hinge, and corresponding limiting parts and strengthening parts are equipped, so that the straight ladder can be folded and unfolded according to needs, increasing the portability of the equipment, facilitating transportation and storage. At the same time, rotate the bidirectional lead screw to drive the two nut seats to move inward simultaneously, and drive the arc-shaped clamping plates fixedly connected thereto to move synchronously, so that the mouths of the two arc-shaped clamping plates gradually approach, thereby clamping the electric pole, and ensuring that the centers of the two arc-shaped clamping plates coincide with the center of the first straight ladder, avoiding deviation to one side during use.

[0022] 2. Through the setting of the arc-shaped plate, when the second straight ladder leans against the surface of the electric pole, the arc-shaped plate at the upper part of the second straight ladder can better fit the contact surface, increasing the contact area, thereby improving the stability between the overall equipment and the electric pole, preventing sliding or displacement due to poor contact. At the same time, the first rubber pad bonded to the arc surface of the arc-shaped plate can not only play a buffering role, reducing the collision and wear between the equipment and the contact object, but also increasing the friction force.

[0023] 3. Through the settings of the strengthening part and the fixing part, the limiting plate in the strengthening part cooperates with the sliding grooves of the first straight ladder and the second straight ladder, and is fixed by the second bolt and the anti-fold plate, which can significantly enhance the connection strength between the first straight ladder and the second straight ladder in the unfolded state. When the straight ladder bears a large load, such as when people climb or place heavy objects, it can still remain stable without safety hazards such as shaking, deformation or disconnection, ensuring the personal safety of users. At the same time, the setting of the anti-fold plate not only increases the reliability of the fixation, but also can prevent the limiting plate from being bent or damaged during use, further improving the structural stability of the strengthening part.

[0024] 4. Through the setting of the locking component, the ratchet ring in the locking component cooperates with the abutting block, which can effectively prevent the bidirectional lead screw from rotating during use, ensuring the fixed position of the arc-shaped clamping plate after clamping the electric pole, and preventing the loss of clamping force or the loosening of the object due to the accidental rotation of the lead screw. This improves the reliability and stability of the clamping operation, ensures the safety of the equipment during use. At the same time, the setting of the second spring enables the abutting block to always maintain close contact with the ratchet ring. Even when the equipment is affected by vibration or other external force disturbances, it can quickly return to the locked position, further enhancing the locking effect. At the same time, the elastic force of the spring can also buffer the impact force between the abutting block and the ratchet ring to a certain extent, reduce the wear of components, and extend the service life of the equipment.

[0025] 5. Through the setting of the detachable connecting piece, it is convenient to inspect, repair or replace components such as the abutting block and the second spring when needed. Remove the threaded ring, so that the connecting piece can be separated from the mouth of the through hole, exposing the inner cavity of the through hole, and then it is convenient to repair or replace the abutting block and the second spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the maintenance auxiliary device for the power transmission line of the present invention;

[0027] Figure 2 is a schematic structural diagram of the folded state of the present invention;

[0028] Figure 3 is a schematic structural diagram of the present invention during use;

[0029] Figure 4 is a schematic exploded structural diagram of the present invention;

[0030] Figure 5 is a schematic structural diagram of the installation position of the ratchet ring of the present invention;

[0031] Figure 6 is a schematic sectional structural diagram of the mounting plate of the present invention;

[0032] Figure 7 is a schematic structural diagram of the threaded ring of the present invention;

[0033] Figure 8 is a schematic sectional structural diagram of the U-shaped frame of the present invention;

[0034] Figure 9 is a schematic structural diagram of the arc-shaped plate of the present invention.

[0035] In the figure: 100, the first straight ladder; 101, the hinge; 102, the second straight ladder; 103, the shoulder strap; 104, the square hole; 105, the T-shaped groove;

[0036] 200, limit strip; 201, connecting strip; 202, first pull ring; 203, circular cavity; 204, first spring; 205, limit plate; 206, connecting rod;

[0037] 300, U-shaped frame; 301, fixing column; 302, connecting block; 303, first bolt; 304, T-shaped block;

[0038] 400, connecting column; 401, arc plate; 402, first rubber pad;

[0039] 500, slide groove; 501, limit plate; 502, nut; 503, second bolt; 504, anti-bend plate; 505, limit hole; 506, connecting square bar;

[0040] 600, arc-shaped clamping plate; 601, bidirectional screw; 602, nut seat; 603, bearing; 604, fixing plate; 605, mounting plate; 606, second rubber pad;

[0041] 700, ratchet ring; 701, abutment block; 702, through hole; 703, threaded ring; 704, second spring; 705, connecting piece; 706, circular ring; 707, threaded rod; 708, internal threaded tube. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figures 1-9, this embodiment provides a maintenance assistance device for a power transmission line, which is used for assisting in the maintenance of the power transmission line. It includes a first straight ladder 100, above which there is a second straight ladder 102. At the top of the front side of the first straight ladder 100, there is a hinge 101 fixedly connected, and the rotating end of the hinge 101 is fixedly connected to the bottom of the front side of the second straight ladder 102. At the bottom of the front side of one group of vertical rods of the first straight ladder 100, there is a limiting member for limiting the second straight ladder 102 when the second straight ladder 102 is flipped to one side of the first straight ladder 100; a mounting plate 605, which is installed at the bottom of the rear side of the first straight ladder 100 through a rotating connection member. At both ends of the rear side of the mounting plate 605, there are fixed plates 604 respectively. Between the two groups of fixed plates 604, there is a bidirectional lead screw 601 rotatably connected. The two ends of the bidirectional lead screw 601 are respectively threadedly connected with corresponding nut seats 602. On one side of each of the two groups of nut seats 602, there is an arc-shaped clamping plate 600 fixedly connected. The mouths of the two groups of arc-shaped clamping plates 600 are arranged oppositely; a locking assembly, which is installed in the middle of the mounting plate 605 and is used to prevent the bidirectional lead screw 601 from rotating back; among them

[0044] At the top of the first straight ladder 100, there is a strengthening member for enhancing the connection strength with the second straight ladder 102 when the second straight ladder 102 is flipped along the hinge 101 to the upper part of the first straight ladder 100. Through the settings of the hinge 101 and the bidirectional lead screw 601, the first straight ladder 100 and the second straight ladder 102 are connected through the hinge 101, and corresponding limiting members and strengthening members are equipped, so that the straight ladder can be folded and unfolded according to needs, increasing the portability of the equipment, facilitating transportation and storage. At the same time, rotate the bidirectional lead screw 601 to drive the two groups of nut seats 602 to move inward simultaneously, and drive the arc-shaped clamping plates 600 fixedly connected thereto to move synchronously, so that the mouths of the two groups of arc-shaped clamping plates 600 gradually approach, thereby clamping the electric pole, and ensuring that the centers of the two groups of arc-shaped clamping plates 600 coincide with the center of the first straight ladder 100 to avoid offsetting to one side during use.

[0045] Among them, at both ends of the bidirectional lead screw 601, there are bearing sleeves 603 respectively. The two groups of bearing sleeves 603 are respectively embedded in the middle of the corresponding side fixed plates 604, and one end of the bidirectional lead screw 601 extends to the outside of the corresponding side fixed plate 604.

[0046] Further, the locking component includes a ratchet ring 700 fixedly sleeved on the middle surface of the bidirectional lead screw 601. A through hole 702 is formed in the middle surface of the mounting plate 605. A contact block 701 is inserted into the mouth of the through hole 702 close to the ratchet ring 700. One end of the contact block 701 can be inserted between the ratchet teeth on the surface of the ratchet ring 700. The other end of the contact block 701 is fixedly connected to an internally threaded tube 708. The internally threaded tube 708 passes through the other side mouth of the through hole 702 and is fixedly connected to an anti-disengagement member for preventing the contact block 701 from disengaging from the inner cavity of the through hole 702. A second spring 704 is sleeved on the surface of the internally threaded tube 708 located in the inner cavity of the through hole 702. One end of the second spring 704 abuts against the surface of the contact block 701, and the other end of the second spring 704 abuts against the surface of the anti-disengagement member. Through the setting of the locking component, the ratchet ring 700 and the contact block 701 in the locking component cooperate to effectively prevent the bidirectional lead screw 601 from rotating during use, ensuring the fixed position of the arc-shaped clamping plate 600 after clamping the electric pole, and preventing the loss of clamping force or the loosening of the object due to the accidental rotation of the lead screw, improving the reliability and stability of the clamping operation, ensuring the safety of the equipment during use. At the same time, the setting of the second spring 704 enables the contact block 701 to always maintain close contact with the ratchet ring 700. Even when the equipment is affected by vibration or other external force disturbances, it can quickly return to the locked position, further enhancing the locking effect. At the same time, the elastic force of the spring can also buffer the impact force between the contact block 701 and the ratchet ring 700 to a certain extent, reduce the wear of components, and extend the service life of the equipment;

[0047] The rotating connection member includes a U-shaped frame 300 slidably connected to the lower parts on both sides of the first straight ladder 100. Connecting blocks 302 are fixedly connected to both sides of one end of the two U-shaped frames 300 facing each other. Fixed columns 301 are rotatably connected to the middle parts of the opposite sides of the two connecting blocks 302. The opposite ends of the two fixed columns 301 are respectively fixedly connected to the corresponding sides of the mounting plate 605. A connecting member for connecting the corresponding sides of the first straight ladder 100 is arranged in the inner cavity of the two U-shaped frames 300. Through the setting of the rotating connection member, the sliding connection between the U-shaped frame 300 and the first straight ladder 100 and the rotating connection with the mounting plate 605 in the rotating connection member enable the mounting plate 605 to achieve multi-degree-of-freedom adjustment in the horizontal and vertical directions, and can flexibly adjust the position and angle of the mounting plate 605 to achieve the best use effect;

[0048] Among them, the cross-section of the fixed column 301 is T-shaped.

[0049] The limiting member includes a circular cavity 203 formed inside the other end of one set of U-shaped frames 300. One end of the circular cavity 203 is slidably connected with a limiting disk 205. One side of the limiting disk 205 is fixedly connected with a connecting rod 206. One end of the connecting rod 206 penetrates through the inner wall of the corresponding circular cavity 203 and extends to the outside of the U-shaped frame 300. A first spring 204 is sleeved on the surface of the connecting rod 206 inside the circular cavity 203. The first spring 204 contacts one side surface of the limiting disk 205 and one side inner wall of the circular cavity 203 respectively. One end of the connecting rod 206 located outside the U-shaped frame 300 is fixedly connected with a connecting strip 201. A first pull ring 202 is fixedly connected to the outer surface of the connecting strip 201. A limiting strip 200 is fixedly connected to the inner side of the end of the connecting strip 201 far away from the U-shaped frame 300. Through the setting of the limiting member, when the second straight ladder 102 is folded to one side of the first straight ladder 100, the limiting member can accurately limit it, prevent the second straight ladder 102 from undergoing excessive flipping or displacement due to accidental shaking or external force, ensure that the folded straight ladder has a compact and stable structure, is convenient for carrying and storing, and at the same time reduces the risk of component damage that may be caused by improper folding;

[0050] Furthermore, the anti-detachment member includes a connecting piece 705 arranged on one side of the mounting plate 605. A detachable connecting member for connecting the mouth of the through hole 702 is arranged on one side of the connecting piece 705. One end of the internal thread tube 708 penetrates through the connecting piece 705. A threaded rod 707 is threadedly connected to the mouth of the end of the internal thread tube 708 penetrating through the connecting piece 705. One end of the threaded rod 707 is fixedly connected with a circular ring 706. The circular ring 706 abuts against the surface of the connecting piece 705. Through the setting of the anti-detachment member, components such as the connecting piece 705, the threaded rod 707 and the circular ring 706 in the anti-detachment member cooperate with the internal thread tube 708, which can effectively prevent the abutting block 701 from detaching from the inner cavity of the through hole 702, avoid the locking failure caused by the detachment of the abutting block 701, and further improve the reliability and safety of the equipment.

[0051] Preferably, the connecting member includes T-shaped grooves 105 formed on the lower surfaces of both sides of the first straight ladder 100. T-shaped blocks 304 are respectively slidably connected to the inner cavities of the two T-shaped grooves 105. First bolts 303 are respectively threadedly connected to the middle parts of the opposite sides of the two U-shaped frames 300. One ends of the two first bolts 303 respectively threadedly penetrate through the corresponding U-shaped frames 300 and T-shaped blocks 304 in sequence and abut against the inner cavities of the T-shaped grooves 105. Through the setting of the connecting member, the connecting member adopts the cooperation of the T-shaped block 304 and the T-shaped groove 105 and is fixed by the first bolt 303, which not only ensures the firmness of the connection but also is convenient for installation and disassembly. When maintenance, repair or component replacement of the equipment is required, the mounting plate 605 can be quickly separated from the first straight ladder 100, improving the maintainability and operability of the equipment.

[0052] It should be noted that the detachable connecting piece includes a threaded ring 703 fixedly connected to the middle of the connecting piece 705. The connecting piece 705 is threadedly connected to the mouth of the through hole 702 through the threaded ring 703. One end of the second spring 704 abuts against one end surface of the threaded ring 703. Through the setting of the detachable connecting piece, it is convenient to inspect, repair or replace components such as the abutting block 701 and the second spring 704 when needed. The threaded ring 703 is disassembled, so that the connecting piece 705 is disengaged from the mouth of the through hole 702, exposing the inner cavity of the through hole 702, and then it is convenient to overhaul or replace the abutting block 701 and the second spring 704.

[0053] Preferably, the reinforcing member includes sliding grooves 500 on both sides of the opposite ends of the first straight ladder 100 and the second straight ladder 102. Limiting plates 501 are respectively slidably connected to the inner cavities of the sliding grooves 500 on both sides of the first straight ladder 100. A fixing member for fixing the limiting plates 501 to prevent the limiting plates 501 from disengaging from the sliding grooves 500 on both sides of the second straight ladder 102 is provided on the surface of the second straight ladder 102. The fixing member includes a limiting hole 505 opened at the lower rear side of the second straight ladder 102. Connecting square bars 506 are respectively fixedly connected to the opposite side surfaces of the two limiting plates 501. One ends of the two connecting square bars 506 are respectively fixedly connected with anti-folding plates 504. The opposite ends of the two anti-folding plates 504 extend inward respectively. The two anti-folding plates 504 can slide up and down along the rear side of the first straight ladder 100. Nuts 502 are respectively fixedly connected to the tops of the outer ends of the two anti-folding plates 504. Second bolts 503 are respectively threadedly connected to the inner cavities of the two nuts 502. When one end of the top of the limiting plate 501 is inserted into the limiting groove of the second straight ladder 102, one end of the second bolt 503 threadedly penetrates through the anti-folding plate 504 and is inserted into the inner cavity of the limiting hole 505. Through the setting of the reinforcing member and the fixing member, the limiting plates 501 in the reinforcing member cooperate with the sliding grooves 500 of the first straight ladder 100 and the second straight ladder 102, and are fixed by the second bolts 503 and the anti-folding plates 504, which can significantly enhance the connection strength between the first straight ladder 100 and the second straight ladder 102 in the unfolded state, so that the straight ladder can still remain stable when bearing a large load, such as when people climb or place heavy objects, without safety hazards such as shaking, deformation or disconnection, ensuring the personal safety of users. At the same time, the setting of the anti-folding plate 504 not only increases the reliability of the fixation, but also can prevent the limiting plate 501 from being bent or damaged during use, further improving the structural stability of the reinforcing member.

[0054] It should be noted that the lengths of the sliding grooves 500 on both sides of the first straight ladder 100 are the same as the length of the limiting plate 501, so that the limiting plate 501 can be inserted into the sliding grooves 500 on both sides of the first straight ladder 100, and at the same time, the lengths of the sliding grooves 500 on both sides of the second straight ladder 102 are half of the length of the limiting plate 501.

[0055] Furthermore, square holes 104 are respectively formed in the front side surfaces of the two sets of vertical rods of the second straight ladder 102. The two sets of square holes 104 on the same side are arranged vertically. A shoulder strap 103 is arranged in the inner cavities of the two sets of square holes 104 on the same side. One end of the shoulder strap 103 sequentially passes through the two sets of square holes 104 on the same side and is sewn together with the other end. Through the arrangement of the shoulder strap 103, the shoulder strap 103 arranged on the vertical rod of the second straight ladder 102 provides convenience for carrying the device. The user can put the shoulder strap 103 on the shoulder and easily carry the device on the body without using additional handling tools, especially suitable for scenarios where there is no transportation equipment or the device needs to be moved in complex terrains, improving the mobility and flexibility of the device.

[0056] Preferably, connecting columns 400 are respectively rotatably connected to the upper parts of the opposite sides of the two sets of vertical rods of the second straight ladder 102. A set of arc-shaped plates 401 are fixedly connected between the two sets of connecting columns 400. A first rubber pad 402 is bonded to the arc surface of the arc-shaped plate 401. Through the arrangement of the arc-shaped plate 401, when the second straight ladder 102 leans against the surface of the electric pole, the arc-shaped plate 401 at the upper part of the second straight ladder 102 can better fit the contact surface, increasing the contact area, thereby improving the stability between the overall device and the electric pole, preventing sliding or displacement due to poor contact. At the same time, the first rubber pad 402 bonded to the arc surface of the arc-shaped plate 401 can not only play a buffering role, reducing the collision and wear between the device and the contacted object, but also increasing the friction force.

[0057] It should be noted that second rubber pads 606 are respectively bonded to the inner arc surfaces of the two sets of arc-shaped clamping plates 600. Through the arrangement of the rubber pads, the second rubber pads 606 bonded to the inner arc surfaces of the arc-shaped clamping plates 600 can significantly increase the friction force between the clamping plates and the clamped object, effectively preventing the clamped object from sliding under the clamping force. When clamped on the surface of the electric pole, it can ensure the reliability of clamping, preventing the sliding of the object from affecting the working efficiency or causing safety accidents.

[0058] Working principle;

[0059] When the second straight ladder 102 needs to be used, pull the first pull ring 202 of the limiting member, so that the connecting bar 201 drives the limiting bar 200 to move outward against the elastic force of the first spring 204, disengaging from the limiting cooperation with the second straight ladder 102. Then, flip the second straight ladder 102 upward along the hinge 101 to the upper part of the first straight ladder 100. Subsequently, push the anti-fold plate 504 upward, driving the limiting plate 501 to move upward through the connecting square bar 506, so as to insert into the chute 500 of the second straight ladder 102. And tighten the second bolt 503. The second bolt 503 penetrates through the anti-fold plate 504 and is inserted into the inner cavity of the limiting hole 505 to fix the anti-fold plate 504 and prevent the anti-fold plate 504 from sliding downward, thereby enhancing the connection strength between the first straight ladder 100 and the second straight ladder 102 and ensuring the stability during use;

[0060] Subsequently, lean the unfolded first straight ladder 100 and the second straight ladder 102 against the surface of the electric pole. At the same time, make the inner arc surface of the arc-shaped plate 401 inside the upper part of the second straight ladder 102 adhere to the surface of the electric pole, and make the first straight ladder 100 and the second straight ladder 102 form a certain inclination angle with the electric pole;

[0061] At this time, pull the mounting plate 605 upward, thereby driving the U-shaped frame 300 to slide upward along the T-shaped groove 105 until the electric pole is located between the middle parts of the two groups of arc-shaped clamping plates 600. Subsequently, tighten the first bolts 303 on both sides of the U-shaped frame 300 in sequence, so that the first bolts 303 thread through the U-shaped frame 300 and the T-shaped block 304 and abut against the inner cavity of the chute 500, thereby fixing the mounting plate 605 at a certain height and being able to adapt to different inclination angles. At this time, lift the arc-shaped clamping plates 600 upward until they are horizontally aligned with the electric pole transversely;

[0062] Immediately afterwards, by rotating the bidirectional lead screw 601, drive the two nut seats 602 to move inward simultaneously, and drive the arc-shaped clamping plates 600 fixedly connected thereto to move synchronously, so that the mouths of the two groups of arc-shaped clamping plates 600 gradually approach, thereby clamping the electric pole. At the same time, the second rubber pads 606 adhered to the inner arc surfaces of the arc-shaped clamping plates 600 can not only increase the friction force with the clamped object and prevent the arc-shaped clamping plates 600 from sliding;

[0063] When the locking cam 704 is in the state of being loosened, the locking cam 704 will be in the state of being loosened, and the locking cam 704 will be in the state of being loosened, so that the locking cam 704 can be locked to the locking cam 704 when the locking cam 704 is in the state of being loosened.

[0064] Afterwards, the staff climbed up the ladder to inspect the power transmission line on top of the pole;

[0065] When the inspection is completed, the second bolts 503 are loosened in sequence to disengage them from the inner cavity of the limiting holes 505, and the limiting plates 501 slide into the slide grooves 500 on both sides of the first ladder 100 under the influence of gravity. Then, the second ladder 102 is flipped downward with the hinge 101 as the axis, and the first pull ring 202 is pulled outward to make the limiting strip 200 away from the first ladder 100. When the second ladder 102 is flipped to one side of the first ladder 100, the pull ring is released, and the first spring 204 pushes the limiting plate 205 to slide inward, and the limiting strip 200 is driven to move inward via the connecting rod 206, so as to be clamped at the edge of the second ladder 102 to limit the second ladder 102.

[0066] The shoulder strap 103 on the vertical rod of the second ladder 102 is convenient for the user to carry or move the device. The user can put his arm through the shoulder strap 103 and carry the device on his body, thereby improving the portability of the device.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A maintenance auxiliary device for a power transmission line, characterized in that: The auxiliary maintenance device for power transmission lines is used for auxiliary maintenance of power transmission lines, and comprises: A first straight ladder (100), a second straight ladder (102) is arranged above the first straight ladder (100), a hinge (101) is fixedly connected to the front top of the first straight ladder (100), a rotating end of the hinge (101) is fixedly connected to the front bottom of the second straight ladder (102), and a limiting member is provided at the front bottom of one group of vertical rods of the first straight ladder (100) for limiting the second straight ladder (102) when the second straight ladder (102) is turned to one side of the first straight ladder (100); A mounting plate (605), the mounting plate (605) being mounted on the rear bottom of the first straight ladder (100) via a rotating connecting piece, a fixing plate (604) being respectively arranged at both ends of the rear side of the mounting plate (605), a bidirectional lead screw (601) being rotatably connected between two groups of the fixing plates (604), both ends of the bidirectional lead screw (601) being respectively threadedly connected to corresponding nut seats (602), one side of the two groups of the nut seats (602) being fixedly connected to an arc-shaped clamping plate (600), and the mouths of the two groups of the arc-shaped clamping plates (600) being arranged opposite to each other; A locking assembly is installed in the middle of the mounting plate (605), and is used to prevent the bidirectional lead screw (601) from rotating; wherein A reinforcing member is provided at the top of the first straight ladder (100) for enhancing the connection strength with the second straight ladder (102) when the second straight ladder (102) is turned over along the hinge (101) to the upper part of the first straight ladder (100).

2. The maintenance auxiliary device for a power transmission line according to claim 1, characterized in that: The locking assembly comprises a ratchet ring (700) fixedly sleeved on the middle surface of the bidirectional lead screw (601), a through hole (702) is opened on the middle surface of the mounting plate (605), an abutment block (701) is inserted into the mouth of the through hole (702) near the ratchet ring (700), one end of the abutment block (701) can be inserted into the ratchet teeth on the surface of the ratchet ring (700), and the other end of the abutment block (701) is fixedly connected to an internal threaded tube (708) ), the internal threaded tube (708) extends through the other side opening of the through hole (702) and is fixedly connected with an anti-slip piece for preventing the abutment block (701) from escaping from the inner cavity of the through hole (702), and a second spring (704) is sleeved on the surface of the internal threaded tube (708) located in the inner cavity of the through hole (702), one end of the second spring (704) abuts against the surface of the abutment block (701), and the other end of the second spring (704) abuts against the surface of the anti-slip piece; The rotatable connecting member comprises a C-shaped frame (300) slidably connected to the lower parts of both sides of the first straight ladder (100); two groups of the C-shaped frames (300) are fixedly connected to the two sides facing each other at one end; the middle parts of the opposite sides of the two groups of the connecting blocks (302) are rotatably connected to fixed columns (301); the opposite ends of the two groups of the fixed columns (301) are respectively fixedly connected to the corresponding sides of the mounting plate (605); and the inner cavities of the two groups of the C-shaped frames (300) are provided with connecting members for connecting the corresponding sides of the first straight ladder (100); The limiting member comprises a circular cavity (203) opened inside the other end of one group of the U-shaped frames (300); one end of the circular cavity (203) is slidably connected to a limiting plate (205); one side of the limiting plate (205) is fixedly connected to a connecting rod (206); one end of the connecting rod (206) penetrates the inner wall of the corresponding circular cavity (203) and extends to the outside of the U-shaped frame (300); the surface of the connecting rod (206) inside the circular cavity (203) is The face cover is provided with a first spring (204), the first spring (204) respectively contacts a surface of one side of the limiting plate (205) and an inner wall of one side of the circular cavity (203), one end of the connecting rod (206) located outside the U-shaped frame (300) is fixedly connected to a connecting strip (201), the outer surface of the connecting strip (201) is fixedly connected to a first pull ring (202), and the inner side of one end of the connecting strip (201) away from the U-shaped frame (300) is fixedly connected to the limiting strip (200).

3. The maintenance auxiliary device for a power transmission line according to claim 2, characterized in that: The anti-slip component comprises a connecting piece (705) arranged on one side of the mounting plate (605), a detachable connecting piece for connecting to the mouth of the through hole (702) is arranged on one side of the connecting piece (705), one end of the internal threaded tube (708) passes through the connecting piece (705), the internal threaded tube (708) passes through one end of the connecting piece (705) and is threadedly connected to a threaded rod (707), one end of the threaded rod (707) is fixedly connected to a circular ring (706), and the circular ring (706) abuts against the surface of the connecting piece (705).

4. The maintenance auxiliary device for a power transmission line according to claim 2, characterized in that: The connecting member comprises T-shaped slots (105) provided on the lower surfaces of both sides of the first straight ladder (100); the inner cavities of the two groups of the T-shaped slots (105) are respectively slidably connected with T-shaped blocks (304); the middle parts of the two groups of the U-shaped frames (300) facing each other are respectively threadedly connected with first bolts (303); one ends of the two groups of the first bolts (303) are respectively threadedly penetrated through the corresponding side U-shaped frames (300) and the T-shaped blocks (304) in sequence and abut against the inner cavities of the T-shaped slots (105).

5. The maintenance auxiliary device for power transmission lines according to claim 3, characterized in that: The detachable connecting member comprises a threaded ring (703) fixedly connected to the middle of the connecting piece (705); the connecting piece (705) is threadedly connected to the mouth of the through hole (702) through the threaded ring (703); one end of the second spring (704) abuts against one end surface of the threaded ring (703).

6. The maintenance auxiliary device for power transmission lines according to claim 1, characterized in that: The reinforcement member comprises sliding grooves (500) on both sides of opposite ends of the first straight ladder (100) and the second straight ladder (102); the inner cavities of the sliding grooves (500) on both sides of the first straight ladder (100) are respectively slidably connected to limit plates (501); and the surface of the second straight ladder (102) is provided with fixing members for fixing the limit plates (501) to prevent the limit plates (501) from being separated from the sliding grooves (500) of the second straight ladder (102).

7. The maintenance auxiliary device for power transmission lines according to claim 6, characterized in that: The fixing member comprises a limiting hole (505) opened at the lower rear side of the second straight ladder (102); the surfaces of the two groups of limiting plates (501) facing each other are respectively fixedly connected with connecting square bars (506); one end of the two groups of connecting square bars (506) is respectively fixedly connected with an anti-folding plate (504); the opposite ends of the two groups of anti-folding plates (504) extend inward respectively; the two groups of anti-folding plates (504) can slide up and down along the rear side of the first straight ladder (100); the tops of the two groups of anti-folding plates (504) close to the outer sides are fixedly connected with nuts (502); the inner cavities of the two groups of nuts (502) are respectively threadedly connected with second bolts (503); when one end of the top of the limiting plate (501) is completely inserted into the limiting groove of the second straight ladder (102), one end of the second bolt (503) is threadedly penetrated through the anti-folding plate (504) and inserted into the inner cavity of the limiting hole (505).

8. The maintenance auxiliary device for power transmission lines according to claim 1, characterized in that: The front surfaces of the two groups of vertical rods of the second straight ladder (102) are respectively provided with square holes (104), and the two groups of square holes (104) on the same side are arranged up and down. The inner cavities of the two groups of square holes (104) on the same side are provided with shoulder straps (103), and one end of the shoulder strap (103) passes through the two groups of square holes (104) on the same side in sequence and is sewn together with the other end.

9. The maintenance auxiliary device for power transmission lines according to claim 1, characterized in that: The upper parts of the two groups of vertical rods on the opposite sides of the second straight ladder (102) are rotatably connected with connecting columns (400), and a group of arc plates (401) are fixedly connected between the two groups of connecting columns (400), and the arc surface of the arc plates (401) is bonded with a first rubber pad (402).

10. The maintenance auxiliary device for power transmission lines according to claim 1, characterized in that: The inner arc surfaces of the two groups of arc-shaped clamping plates (600) are respectively bonded with second rubber pads (606).

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