Portable electric wire lifting and ladder climbing device

Abstract

The invention relates to the field of electric power construction equipment, and discloses a portable electric wire lifting and ladder climbing device, which comprises a ladder climbing part for an operator to climb; the upper fixing end is mounted at the top end of the ladder stand part, is hook-shaped and is hung on the cross arm; the lower lifting rod is mounted at the bottom end of the ladder stand part; and the two lifting parts are mounted on the lower lifting rod and are used for grasping a lead connected with the bottom end of the composite insulator. According to the invention, the two functions of wire lifting and ladder climbing are combined, and the portable design is adopted, so that an operator does not need to use an additional ladder or rope ladder when replacing insulators, the operation process is simplified, the working efficiency and speed of replacing the insulators in batches can be improved, accurate control and stable lifting of the lower lifting end are also realized, and the labor intensity of the operator is reduced. The operation is simpler and quicker.

Description

Technical Field

[0001] The invention relates to the field of electric power construction equipment, in particular to a portable electric conductor lifting and ladder climbing device. Background Art

[0002] In the power system, transmission lines are important channels for electric energy transmission, and their stability and safety are of vital importance. Composite insulators, as key components of transmission lines, are exposed to the natural environment for a long time, and are subject to the influence of various factors such as mechanical stress, electrical stress and environmental erosion. Their performance will gradually decline over time. Therefore, according to relevant regulations of the power industry, composite insulators that have been in operation for more than 15 years need to be replaced in batches to ensure the safe operation of transmission lines.

[0003] When replacing composite insulators vertically set on the crossarm, the upper crossarm and the lower conductor are mainly connected and brought closer by a hand winch to replace the insulator. Although the hand winch can meet the construction needs to a certain extent, it is large in size and heavy in weight, and is relatively cumbersome to operate. Especially when the line span is large and the conductor is heavy, it is troublesome to assemble the hand winch.

[0004] Traditional construction techniques require workers to use special ladders or soft ladders to climb from the pole tower crossarm to the conductor suspension clamp to perform operations when removing the connecting bolts between insulators and wire clamps. The fixing methods of these ladders or soft ladders pose safety hazards because they are usually only fixed on the pole tower crossarm at the upper end and there is no fixing point at the lower end. Workers are prone to falling or losing balance accidentally when working on the ladder, and the conductor lifting structure and ladder structure cannot be used together. Summary of the invention

[0005] In order to solve the above-mentioned problems, the present invention is implemented through the following technical solutions.

[0006] A portable electric conductor lifting and ladder climbing device comprises: a ladder part for workers to climb; an upper fixed end, which is installed at the top of the ladder part and is in a hook shape, and the upper fixed end is hung on a cross arm; a lower lifting rod, which is installed at the bottom end of the ladder part; two lifting parts, which are installed on the lower lifting rod, and the lifting parts are used to grasp the wire connected to the bottom end of a composite insulator; the lower lifting rod is arranged to move on the ladder part, and is used to lift the wire to loosen the fixed point at the lower end of the composite insulator; the two lifting parts are arranged to move on the lower lifting rod, and are used to adjust the spacing between the two lifting parts, and are used to grasp two wires with different spacings at the same time; the upper fixed end comprises a self-locking device, which is installed at one end of the upper fixed end, and is arranged that when the upper fixed end is close to the cross arm, the self-locking device rotates at one end of the upper fixed end, and is used to lock the position of the upper fixed end on the cross arm.

[0007] The upper fixed end also includes: a pressure sensor installed on the upper fixed end, the pressure sensor is in contact with the cross arm, and is used to detect the pressure borne by the upper fixed end and the ladder part.

[0008] The ladder part includes: a plurality of climbing rods respectively installed on both sides of the ladder part and distributed in a linear array; a through hole opened on one side of the ladder part; a moving groove opened at the bottom end of the ladder part, and a lower lifting rod is connected in the moving groove.

[0009] The ladder part also includes: a winding wheel, which is arranged in the through hole; a lifting member, one end of which is connected to the lower lifting rod, and the other end passes through the movable groove and extends into the through hole, and the lifting member is wound on the winding wheel; two adapter seats, which are respectively connected to the two sides of the winding wheel, and the two rotating seats are both arranged in the through hole.

[0010] The ladder part also includes: a ratchet installed on one side of the winding wheel, and the ratchet is arranged between the winding wheel and the adapter seat; a movable groove is opened at the top of the through hole; a control seat is installed on the top of the through hole, and the control seat is arranged to move in the through hole; a pawl is connected to the control seat, and the pawl is connected to the ratchet.

[0011] The control seat includes: a groove, which is opened at the bottom of the control seat, and the pawl is connected in the groove; an elastic member, which is installed on the inner wall of the groove, the pawl contacts the elastic member, and the elastic member is used to provide the pawl with a restoring force at the initial position; two control rods, which are respectively installed on both sides of the control seat.

[0012] The adapter seat includes: an adapter interface, which is opened at one end of the adapter seat; a moving hole, which is opened on the inner wall of the adapter interface; a trigger rod, which is connected to the moving hole, one end of which extends into the adapter interface and the other end of which extends to the outside of the adapter seat; a push plate, which is arranged on the outer ring of the adapter seat, one end of the trigger rod is connected to the push plate, and one end of the control rod is in contact with the push plate.

[0013] The lifting part includes: a grab hook installed on the lifting part; a connecting groove opened on the grab hook; a self-locking hook connected in the connecting groove, which is configured so that when the wire contacts the self-locking hook, the self-locking hook is squeezed and rotates, so that when the grab hook lifts the wire, the self-locking hook locks the wire on the grab hook.

[0014] A thread groove is arranged on the surface of the lower lifting rod, and a nut is connected to the top of the lifting part, and the nut is connected to the thread groove.

[0015] A protrusion is formed on the top of the upper fixed end for mounting on a cross arm.

[0016] The present invention provides a portable electric wire lifting and ladder climbing device. Compared with the prior art, it has the following beneficial effects: The portable design is smaller in size and lighter in weight, making it easy to carry and assemble, thus simplifying the construction process. The winding wheel, ratchet and other structures are driven by electric tools and other equipment to achieve precise control and stable lifting of the lower lifting end. The operation is simpler and faster, and the wires can be quickly connected and fixed, so that the operators can efficiently complete the replacement of the insulators, thereby improving the working efficiency. The upper fixed end adopts a hook shape that fits tightly with the crossarm, and is equipped with a self-locking device to achieve automatic locking, ensuring that the position of the device on the crossarm is stable and reliable. The lower lifting end is stably lifted by structures such as lifting pieces and winding wheels, thus avoiding the safety hazards of traditional ladder or soft ladder fixing methods. By combining the wire lifting structure and the ladder structure, the operators no longer need to use additional ladders or soft ladders when replacing insulators, thereby reducing the risks during the operation. By adjusting the spacing of the lifting part on the lower lifting rod, this solution can adapt to wires with different spacings, thereby improving the applicability and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the use status of the present invention.

[0018] Figure 2 This is a schematic diagram of the usage status from another perspective of the present invention.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure proposed by the present invention.

[0020] Figure 4 This is a partial enlarged view of the upper fixing end proposed by the present invention.

[0021] Figure 5 It is a partial enlarged view of the lower lifting rod and the lifting part proposed by the present invention.

[0022] Figure 6 This is an enlarged partial cross-sectional view of the ladder portion proposed by the present invention.

[0023] Figure 7 This is an enlarged partial cross-sectional view of the ladder portion and the lower lifting rod proposed by the present invention.

[0024] Figure 8 It is an enlarged view of the winding wheel, ratchet, rotating seat and control seat proposed by the present invention.

[0025] Fig. 9 This is an enlarged partial cross-sectional view of the ratchet and control seat proposed by the present invention.

[0026] Fig.10 This is a schematic diagram of another usage state of the upper fixed end.

[0027] The reference numerals in the figure are: 1. Ladder part; 101. Climbing rod; 102. Through hole; 103. Moving groove; 2. Upper fixed end; 201. Self-locking device; 202. Pressure sensor; 3. Lower lifting rod; 301. Threaded groove; 4. Lifting part; 401. Nut; 402. Grab hook; 403. Connecting groove; 404. Self-locking hook; 5. Winding wheel; 501. Lifting piece; 6. Ratchet; 7. Adapter; 701. Adapter; 702. Trigger rod; 703. Push plate; 8. Control seat; 801. Control rod; 802. Ratchet; 803. Elastic member; 804. Groove. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with specific examples. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of protection of the present invention.

[0029] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0030] Embodiment 1 Reference Figure 1-Figure 9A portable electric conductor lifting and climbing device comprises: a ladder part 1, which is used for workers to climb and provides a climbing channel for workers to ensure the safety of workers when replacing composite insulators; an upper fixed end 2, which is installed at the top of the ladder part 1 and is in a hook shape, and the upper fixed end 2 is mounted on a cross arm; a lower lifting rod 3, which is installed at the bottom end of the ladder part 1; two lifting parts 4, which are installed on the lower lifting rod 3, and the lifting part 4 is used to grasp the wire connected to the bottom end of the composite insulator to ensure the stability of the wire when replacing the composite insulator; the lower lifting rod 3 is configured to move on the ladder part 1, and is used to lift the wire to relax the lower end fixing point of the composite insulator. By moving and adjusting the position, the wire can be lifted and the lower end fixing point of the composite insulator can be relaxed; the two lifting parts 4 are configured to be The lower lifting rod 3 moves on the upper part to adjust the distance between the two lifting parts 4, and is used to simultaneously grasp two wires with different distances; the upper fixed end 2 includes a self-locking device 201, which is installed at one end of the upper fixed end 2 and is configured so that when the upper fixed end 2 is close to the cross arm, the self-locking device 201 rotates at one end of the upper fixed end 2 to lock the position of the upper fixed end 2 on the cross arm; the upper part of the device can be fixed on the cross arm, and the lifting part 4 of the lower part can be fixed on the wire at the bottom end of the composite insulator, which can not only realize the rapid assembly of the device, but also stabilize the positions of the two ends of the ladder part 1, so that workers can climb freely on the ladder part 1. When replacing the composite insulator, only the device needs to be carried, and there is no need to prepare a manual hoist and a ladder. The device can combine the functions of the two to realize rapid and safe replacement of the composite insulator.

[0031] The hook shape of the upper fixed end 2 is similar to the crossarm structure. When in use, the upper fixed end 2 is hung on the crossarm. The upper fixed end 2 can fit the crossarm well, making the entire structure more stable. After the self-locking device 201 is squeezed by the surface of the crossarm, the self-locking device 201 rotates and automatically locks. The upper fixed end 2 can maintain close contact with the crossarm under stress, and the self-locking device 201 will not unload the force. The position of the ladder part 1 and the upper fixed end 2 on the crossarm can always be stabilized. Only when the entire device is not under stress, the ladder part 1 is lifted upward, and the locker is separated from the crossarm, it can be automatically unlocked to ensure the stability of the upper fixed end 2.

[0032] The upper fixed end 2 also includes: a pressure sensor 202, which is installed on the upper fixed end 2. The pressure sensor 202 is in contact with the cross arm and is used to detect the pressure borne by the upper fixed end 2 and the ladder part 1. The pressure sensor 202 is located at the position where the upper fixed end 2 contacts the cross arm. A safety pressure threshold can be set. When the pressure detected by the pressure sensor 202 exceeds the normal range, the operator is reminded in time, which greatly protects the safety of the operator.

[0033] The ladder portion 1 includes: a plurality of climbing rods 101, which are respectively installed on both sides of the ladder portion 1 and distributed in a linear array. The plurality of climbing rods 101 distributed in a linear array increase the stability and safety of the operation; a through hole 102, which is opened on one side of the ladder portion 1; a movable groove 103, which is opened at the bottom end of the ladder portion 1, and the lower lifting rod 3 is connected in the movable groove 103.

[0034] The ladder part 1 also includes: a winding wheel 5, which is arranged in the through hole 102; a lifting member 501, one end of which is connected to the lower lifting rod 3, and the other end of which passes through the movable groove 103 and extends into the through hole 102, and the lifting member 501 is wound on the winding wheel 5. The lifting member 501 adopts a steel wire rope or a nylon rope. The lifting member 501 can be controlled to be retracted and released by rotating the winding wheel 5, thereby driving the lower lifting rod 3 to rise and fall in the movable groove 103; two adapter seats 7, which are respectively connected to the two sides of the winding wheel 5, and the two rotating seats are both arranged in the through hole 102; a ratchet 6 , installed on one side of the winding wheel 5, the ratchet 6 is arranged between the winding wheel 5 and the adapter seat 7; the movable groove 103 is opened at the top of the through hole 102; the control seat 8 is installed on the top of the through hole 102, and the control seat 8 is arranged to move in the through hole 102; the pawl 802 is connected to the control seat 8, and the pawl 802 is connected to the ratchet 6. The arrangement of the ratchet 6 and the pawl 802 ensures the stability and safety during the lifting process. When the pawl 802 is in a connected state with the ratchet 6, the winding wheel 5 can only rotate in one direction to prevent accidental slipping.

[0035] The control seat 8 includes: a groove 804, which is opened at the bottom of the control seat 8, and the pawl 802 is connected in the groove 804; an elastic member 803, which is installed on the inner wall of the groove 804, and the pawl 802 contacts the elastic member 803, and the elastic member 803 is used to provide a restoring force for the initial position of the pawl 802. The elastic member 803 adopts a spring sheet and can also adopt an elastic sheet; two control rods 801, which are respectively installed on both sides of the control seat 8.

[0036] The adapter 7 includes: an adapter port 701, which is opened at one end of the adapter 7; a moving hole, which is opened on the inner wall of the adapter port 701; a trigger rod 702, which is connected to the moving hole, one end of which extends into the adapter port 701, and the other end of which extends to the outside of the adapter 7; a push plate 703, which is arranged on the outer ring of the adapter 7, one end of the trigger rod 702 is connected to the push plate 703, one end of the control rod 801 is in contact with the push plate 703, and the adapter port 701 is inserted into the adapter port 701 through an electric tool or other equipment. The electric tool adopts a hand drill, which can drive the adapter 7 to rotate, and the adapter 7 drives the winding wheel 5 to rotate. When the rotating head of the electric tool is inserted into one of the adapter ports 701, the trigger rod 702 can be squeezed, and the trigger rod 702 drives the push plate 703 to move, and the push plate 703 drives the control rod 801 moves, the control rod 801 drives the control seat 8 to move in the through hole 102, the control seat 8 can drive the pawl 802 to disengage from the ratchet 6, and the electric tool can be used to drive the winding wheel 5 to rotate counterclockwise, so that the winding wheel 5 releases the lifting member 501. Conversely, after the rotating head of the electric tool is inserted into another adapter 701, the corresponding trigger rod 702 can be squeezed, and the trigger rod 702 drives the push plate 703 to move, and the push plate 703 drives the control rod 801 to move, and the control rod 801 drives the control seat 8 to move in the through hole 102, the control seat 8 can drive the pawl 802 to contact with the ratchet 6, and the electric tool can be used to drive the winding wheel 5 to rotate clockwise, so that the winding wheel 5 reels the lifting member 501, thereby driving the lower lifting rod 3 and the lifting part 4 to move closer to the upper fixed end 2.

[0037] The lifting part 4 includes: a grab hook 402, which is installed on the lifting part 4; a connecting groove 403, which is opened on the grab hook 402; a self-locking hook 404, which is connected in the connecting groove 403 and is configured to rotate when the wire contacts the self-locking hook 404, so that the self-locking hook 404 locks the wire on the grab hook 402 when the grab hook 402 lifts the wire. The setting of the self-locking hook 404 can automatically lock the wire when the grab hook 402 lifts the wire, thereby improving the safety and efficiency of the operation. The connection and movement adjustment function with the lower lifting rod 3 enables the entire device to adapt to wires of different spacings; a threaded groove 301 is opened on the surface of the lower lifting rod 3, and a nut 401 is connected to the top of the lifting part 4, and the nut 401 is connected to the threaded groove 301. The setting of the threaded groove 301 and the nut 401 enables the lifting part 4 to be conveniently connected and fixed to the lower lifting rod 3, and the position of the lifting part 4 on the lower lifting rod 3 can also be driven by rotating the nut 401, thereby improving the stability and reliability of the entire device.

[0038] Embodiment 2 Reference Fig.10 The difference between this embodiment and the first embodiment is that a protrusion is formed on the top of the upper fixed end 2 for mounting on a cross arm, and the protrusion can mount the upper fixed end 2 on the cross arm with an opening facing upward.

[0039] During use, the operator carries the portable electric conductor lifting and ladder device to the work site, hangs the upper fixed end 2 of the device on the crossarm of the transmission line, and ensures that the shape of the hook fits tightly with the crossarm structure. If the crossarm opening in the working environment faces upward, the protrusion of the upper fixed end 2 is used to connect it. This device can adapt to crossarms in different states. The self-locking device 201 automatically rotates and locks after being squeezed by the surface of the crossarm, stabilizes the position of the device on the crossarm, confirms that the pressure sensor 202 is in good contact with the crossarm, and sets a safe pressure threshold. During the operation, the upper fixed end is continuously monitored. 2 and the pressure of the ladder part 1 are ensured to be within a safe range. According to the conductor spacing at the bottom end of the composite insulator to be replaced, the positions of the two lifting parts 4 on the lower lifting rod 3 are moved and adjusted to ensure that the grab hook 402 can grab two conductors at the same time. The grab hook 402 of the lifting part 4 is brought close to the conductor. When the conductor contacts the self-locking hook 404, the self-locking hook 404 is squeezed and rotated to automatically lock the conductor. An electric tool is used to insert the adapter 7 into the adapter interface 701 of the adapter seat 7, and the trigger rod 702 is squeezed to drive the push plate 703 and the control rod 801 to move. When the control rod 801 moves, it drives the control seat 8 to The pawl 802 moves in the through hole 102, thereby disengaging or contacting the ratchet 6. When the pawl 802 is disengaged from the ratchet 6, the electric tool can be used to drive the winding wheel 5 to rotate counterclockwise to release the lifting member 501, so that the lower lifting rod 3 and the lifting part 4 are lowered, and the fixing point at the lower end of the composite insulator is loosened. When the pawl 802 is in contact with the ratchet 6, the electric tool can be used to drive the winding wheel 5 to rotate clockwise to reel in the lifting member 501, lift the lower lifting rod 3 and the lifting part 4, and the wire is stably lifted. After the wire is stably lifted, the operator can safely climb to the wire suspension clamp to remove the old composite insulator. Close the connecting bolts between the insulator and the wire clamp, install the new composite insulator on the wire clamp, and tighten the connecting bolts. According to needs, adjust the position of the lifting part 4 on the lower lifting rod 3 and control the rotation of the winding wheel 5 to adjust the position of the wire to ensure that the new insulator is installed correctly and stably. After completing the replacement of the composite insulator, use an electric tool to drive the winding wheel 5 to rotate counterclockwise, release the lifting piece 501, lower the lower lifting rod 3 and the lifting part 4, lift the entire device upward, disengage the lock from the crossarm, automatically unlock the upper fixed end 2, remove the device from the crossarm, and evacuate the work site.

[0040] In summary, compared with the prior art, the present invention has the following beneficial effects: The portable design is smaller in size and lighter in weight, which makes it easy to carry and assemble, and simplifies the construction process. The winding wheel 5 is driven by electric tools and other equipment to achieve precise control and stable lifting of the lower lifting end. The operation is simpler and faster, and the wires can be quickly connected and fixed, so that the operators can efficiently complete the replacement of the insulators, thereby improving the working efficiency.

[0041] The upper fixed end 2 is in the shape of a hook and fits tightly with the cross arm, and is equipped with a self-locking device 201 to achieve automatic locking, ensuring that the position of the device on the cross arm is stable and reliable. The lower lifting end is stably lifted through structures such as the lifting member 501 and the winding wheel 5, avoiding the safety hazards of traditional ladder or soft ladder fixing methods.

[0042] By combining the conductor lifting structure and the ladder structure together, operators no longer need to use additional ladders or soft ladders when replacing insulators, thereby reducing the risks during the operation. By adjusting the spacing of the lifting part 4 on the lower lifting rod 3, this solution can adapt to conductors with different spacings, thereby improving the applicability and flexibility of the device.

[0043] Thus, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the foregoing disclosure, and it should be understood that in some cases, some features of the invention will be employed without the corresponding use of other features without departing from the scope and spirit of the proposed invention. Thus, many modifications may be made to adapt a particular environment or material to the essential scope and spirit of the invention. The invention is not intended to be limited to the specific terms used in the claims below and / or the specific embodiments disclosed as the best mode contemplated for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the invention will be determined solely by the appended claims.

Claims

1. A portable electric wire lifting and ladder climbing device, characterized in that: include: A ladder part (1) is used for workers to climb up; An upper fixed end (2) is mounted on the top of the ladder portion (1) and is in the shape of a hook. The upper fixed end (2) is mounted on a cross arm. A lower lifting rod (3) mounted on the bottom end of the ladder portion (1); Two lifting parts (4) are mounted on the lower lifting rod (3), and the lifting parts (4) are used to grasp the conductor connected to the bottom end of the composite insulator; The lower lifting rod (3) is arranged to move on the ladder portion (1) and is used to lift the conductor so as to loosen the fixing point at the lower end of the composite insulator; The two lifting parts (4) are arranged to move on the lower lifting rod (3) so as to adjust the distance between the two lifting parts (4) and to simultaneously grasp two wires at different distances; The upper fixed end (2) comprises a self-locking device (201) mounted on one end of the upper fixed end (2), and is configured such that when the upper fixed end (2) is close to the cross arm, the self-locking device (201) rotates at one end of the upper fixed end (2) to lock the position of the upper fixed end (2) on the cross arm.

2. A portable electric wire lifting and ladder climbing device according to claim 1, characterized in that: The upper fixed end (2) further comprises: A pressure sensor (202) is mounted on the upper fixed end (2), the pressure sensor (202) being in contact with the cross arm and being used to detect the pressure borne by the upper fixed end (2) and the ladder portion (1).

3. A portable electric wire lifting and ladder climbing device according to claim 1, characterized in that: The ladder part (1) comprises: A plurality of climbing poles (101) are respectively installed on both sides of the ladder portion (1) and are distributed in a linear array; A through hole (102) is formed on one side of the ladder portion (1); The movable groove (103) is formed at the bottom end of the ladder portion (1), and the lower lifting rod (3) is connected in the movable groove (103).

4. A portable electric wire lifting and ladder climbing device according to claim 3, characterized in that: The ladder part (1) further comprises: A winding wheel (5) is arranged in the through hole (102); A lifting member (501), one end of which is connected to the lower lifting rod (3), and the other end of which passes through the movable groove (103) and extends into the through hole (102), and the lifting member (501) is wound on the winding wheel (5); Two transfer seats (7) are respectively connected to two sides of the winding wheel (5), and the two rotating seats are both arranged in the through hole (102).

5. A portable electric wire lifting and ladder climbing device according to claim 4, characterized in that: The ladder part (1) further comprises: A ratchet wheel (6) is mounted on one side of the winding wheel (5), and the ratchet wheel (6) is arranged between the winding wheel (5) and the adapter seat (7); A movable groove (103) is formed at the top of the through hole (102); A control seat (8) is mounted on the top of the through hole (102), and the control seat (8) is configured to move within the through hole (102); A ratchet pawl (802) is connected to the control seat (8), and the ratchet pawl (802) is connected to the ratchet wheel (6).

6. A portable electric wire lifting and ladder climbing device according to claim 5, characterized in that: The control seat (8) comprises: A groove (804) is formed at the bottom of the control seat (8), and the pawl (802) is connected in the groove (804); An elastic member (803) is mounted on the inner wall of the groove (804), the pawl (802) is in contact with the elastic member (803), and the elastic member (803) is used to provide a restoring force for the pawl (802) to its initial position; Two control rods (801) are respectively mounted on two sides of the control seat (8).

7. A portable electric wire lifting and ladder climbing device according to claim 6, characterized in that: The adapter (7) comprises: An adapter port (701) is provided at one end of the adapter seat (7); A movable hole is provided on the inner wall of the transfer interface (701); A trigger rod (702) is connected to the moving hole, one end of which extends into the transfer port (701) and the other end of which extends to the outside of the transfer seat (7); A push plate (703) is arranged on the outer ring of the adapter seat (7), one end of the trigger rod (702) is connected to the push plate (703), and one end of the control rod (801) is in contact with the push plate (703).

8. A portable electric wire lifting and ladder climbing device according to claim 1, characterized in that: The lifting part (4) comprises: A grab hook (402) mounted on the lifting portion (4); A connecting groove (403) is provided on the grab hook (402); The self-locking hook (404) is connected in the connection groove (403) and is configured so that when the wire contacts the self-locking hook (404), the self-locking hook (404) is squeezed and rotates, so that when the grab hook (402) lifts the wire, the self-locking hook (404) locks the wire on the grab hook (402).

9. A portable electric wire lifting and ladder climbing device according to claim 1, characterized in that: A thread groove (301) is provided on the surface of the lower lifting rod (3), and a nut (401) is connected to the top of the lifting portion (4), wherein the nut (401) is connected to the thread groove (301).

10. A portable electric wire lifting and ladder climbing device according to claim 1, characterized in that: A protrusion is formed on the top of the upper fixed end (2) for mounting on a cross arm.

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