An easy-to-maintain power tower

Abstract

The present application relates to the field of power towers, and discloses an easily repairable power tower, including a support platform, a column, a tower body, and a climbing ladder. A movable ladder is arranged on one side of the support platform located on the climbing ladder. The movable ladder includes mutually parallel support tubes, a plurality of ladder plates rotatably arranged between the support tubes on both sides, and wheels rotatably arranged at the bottom of the support tubes. A pushing mechanism for pushing the movable ladder in an inclined state is arranged below the support platform, and a rotating mechanism for rotating the ladder plates is arranged inside the support tubes. The ladder plates are horizontal when the movable ladder is in an inclined state, and are vertical when the movable ladder is in a vertical state. The present application solves the technical problem in the prior art that it is inconvenient for maintenance personnel to climb to a higher position above the power tower to climb the ladder, and realizes that the ladder carried separately can be unfolded and folded, so as to facilitate maintenance personnel to climb to the power tower from the ground.

Description

Technical Field

[0001] The present application relates to the technical field of power towers, and in particular to an easily repairable power tower. Background Art

[0002] A power tower is a frame that supports and reinforces circuits during long-distance transmission. A power tower is a trapezoidal or triangular tower-shaped building, usually 25-40 meters high. It is a steel frame structure. To ensure power supply safety, the tower is generally high. When inspecting and installing circuits, workers need to climb to the top of the tower to perform operations.

[0003] In order to facilitate maintenance personnel to inspect the existing power tower, a ladder is generally provided inside the power tower. At the same time, in order to prevent irrelevant personnel from inspecting the ladder, the bottom of the ladder is generally set higher so that irrelevant personnel cannot climb the ladder. However, this design also brings a lot of inconvenience to the maintenance personnel. When the maintenance personnel need to inspect the power tower, they need to bring a shorter stepladder or other tools to climb, which brings great inconvenience to the maintenance personnel. Summary of the invention

[0004] The embodiment of the present application solves the technical problem in the prior art that it is inconvenient for maintenance personnel to climb to a higher position above the power tower using a climbing ladder by providing an easy-to-maintain power tower. It enables an additional ladder to be unfolded and folded to facilitate maintenance personnel to climb up the power tower from the ground.

[0005] The embodiment of the present application provides an easy-to-maintain power tower, including a support platform, a column fixed on the ground and used to support the support platform, a tower body installed on the support platform, and a climbing ladder fixed on the tower body. The support platform is located on one side of the climbing ladder and a movable ladder is provided. The movable ladder includes support tubes parallel to each other, a plurality of ladder plates rotatably arranged between the support tubes on both sides, and wheels rotatably arranged at the bottom of the support tubes. A pushing mechanism for pushing the movable ladder in an inclined state is provided below the support platform, and a rotating mechanism for rotating the ladder plates is provided in the support tubes. The ladder plates are horizontal when the movable ladder is in an inclined state, and are vertical when the movable ladder is in a vertical state.

[0006] Furthermore, the pushing mechanism includes vertical poles symmetrically arranged and vertically fixed to the bottom surface of the support platform, a cross pole rotatably arranged between the vertical poles on both sides and close to the support platform, a support pole one hinged to the bottom of the vertical poles and the middle of the support tube, a support pole two with one end hinged to the bottom of the support tube and the other end located below the support platform, and a support pole three with one end fixed to the cross pole and the other end located below the support platform; an end of the support pole three away from the cross pole and an end of the support pole two away from the support tube are hinged to each other; a connecting rod is coaxially connected between the rotation axes of the hinge points of the support pole three and the support pole two on both sides; and a driving mechanism for driving the cross pole to rotate is installed on the bottom surface of the support platform.

[0007] Furthermore, the driving mechanism includes a bevel gear 1 coaxially connected to the cross bar, a rotating rod vertically rotatably arranged on the bottom surface of the supporting platform, a bevel gear 2 coaxially connected to the rotating rod and meshing with the bevel gear 1, a worm gear 1 coaxially connected to the rotating rod, and a driving assembly that drives the worm gear 1 to rotate.

[0008] Furthermore, the driving assembly includes mounting plates respectively located above the cross bar and the connecting rod and vertically fixed to the bottom surface of the supporting platform, a screw rod rotatably arranged between the mounting plates on both sides, a nut seat installed on the screw rod, a guide rod fixed between the mounting plates on both sides and passing through the nut seat, a worm one coaxially connected to the end of the screw rod and meshing with the worm gear one, and a driving motor installed on the mounting plate and driving the screw rod to rotate.

[0009] The cam is configured to move the movable base to the support frame, and the movable base is configured to move the movable base upwardly and downwardly. The movable base is configured to move the movable base upwardly and downwardly. The movable base is configured to move the movable base upwardly and downwardly.

[0010] Furthermore, one end of the shaft rod away from the vertical plate extends out of the side surface of the nut seat away from the vertical plate.

[0011] Furthermore, one end of the long slot away from the triangular slot is close to the rotating rod.

[0012] Furthermore, the rotating mechanism includes a corod located in the support tube and coaxially connected to the second support rod, a second worm coaxially connected to the corod, a strip rod rotatably arranged at both ends of the support tube, and a second worm wheel coaxially connected to the strip rod and meshing with the second worm wheel. The corod is coaxially connected to the rotation axis of one of the ladder pieces, the strip rod is coaxially connected to a third worm wheel near each ladder piece, and the rotation axis of each ladder piece away from the corod is coaxially connected to a third worm wheel meshing with the third worm wheel.

[0013] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0014] Due to the use of a pushing mechanism, the mobile ladder can be moved into an inclined state. During the movement of the mobile ladder, the ladder plates on the mobile ladder are unfolded, and the maintenance personnel can use the mobile ladder to climb to the supporting platform, and then use the climbing ladder on the tower body to climb to the top of the tower body. In this way, the maintenance personnel do not need to bring their own herringbone ladder to climb onto the tower body, which is convenient for the maintenance personnel to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the power tower in the embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the overall structure of the moving ladder and the driving mechanism in the embodiment of the present application;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure in the upward direction, mainly showing the structure of the propulsion mechanism;

[0018] Figure 4 for Figure 3 The schematic diagram of the middle part structure mainly illustrates the structure of the driving mechanism;

[0019] Figure 5 for Figure 4 The enlarged schematic diagram of part A in the middle mainly illustrates the partial structure of the driving mechanism;

[0020] Figure 6 for Figure 4 An exploded schematic diagram of the middle structure, mainly showing the structure of the hook and the moving seat;

[0021] Figure 7 for Figure 2 A schematic cross-sectional view of the middle support tube, mainly illustrating the structure of the rotating mechanism;

[0022] In the figure: 101, support platform; 102, column; 103, tower body; 104, climbing ladder; 1, mobile ladder; 11, support pipe; 12, ladder plate; 13, wheel; 2, pushing mechanism; 21, vertical rod; 22, cross rod; 23, support rod 1; 24, support rod 2; 25, support rod 3; 26, connecting rod; 3, rotating mechanism; 31, same rod; 32, worm gear 2; 33, strip rod; 34, worm gear 2; 35, worm gear 3; 36, worm gear 3; 4 , driving mechanism; 41, bevel gear one; 42, rotating rod; 43, bevel gear two; 44, worm gear one; 45, driving assembly; 451, mounting plate; 452, screw rod; 453, nut seat; 454, guide rod; 455, worm gear one; 456, driving motor; 5, vertical plate; 51, guide groove; 511, triangular groove; 512, short groove; 513, long groove; 6, moving seat; 61, shaft rod; 62, hook; 63, pendulum bar; 64, guide rod. DETAILED DESCRIPTION

[0023] The embodiment of the present application discloses an easily repairable power tower, which utilizes a driving assembly 45 to drive a rotating rod 42 in a driving mechanism 4 to rotate, and the rotating rod 42 drives a cross bar 22 to rotate. The rotation of the cross bar 22 can cause the support rod three 25 to swing downward, and the support rod three 25 can drive the support rod two 24 to push the wheels 13 of the mobile ladder 1 to move, so that the mobile ladder 1 can be moved into an inclined state. During the movement of the mobile ladder 1, the ladder plates 12 on the mobile ladder 1 can be unfolded by the rotating mechanism 3, and maintenance personnel can use the mobile ladder 1 to climb onto the supporting platform 101, and then use the climbing ladder 104 on the tower body 103 to climb to the top of the tower body 103, so that the maintenance personnel can climb onto the tower body 103 without bringing their own herringbone ladder, which is convenient for maintenance personnel to operate.

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Figure 1 and Figure 2 A power tower that is easy to maintain includes a supporting platform 101, a column 102, a tower body 103, a climbing ladder 104, a moving ladder 1 and a pushing mechanism 2. The supporting platform 101 is horizontally arranged, and four columns 102 are provided and vertically fixed to the four corners of the bottom surface of the supporting platform 101, respectively. The bottom end of the column 102 is fixed to the ground, the tower body 103 is installed on the supporting platform 101, the climbing ladder 104 is fixed to one side of the tower body 103, the moving ladder 1 is located on one side of the supporting platform 101, the moving ladder 1 is located below the climbing ladder 104, one end of the moving ladder 1 is located above the supporting platform 101, and the other end is close to the ground. The pushing mechanism 2 is located below the supporting platform 101 and is used to push the moving ladder 1 and pull back the moving ladder 1.

[0026] Reference Figure 2 The mobile ladder 1 includes a support tube 11, ladder pieces 12 and wheels 13. Two support tubes 11 are provided and are symmetrically arranged. When the support tube 11 is in a vertical state, one end is located above the support platform 101 and the other end is close to the ground. Two wheels 13 are provided. The two wheels 13 are rotatably arranged at the bottom of the support tube 11 respectively, and the wheels 13 are in contact with the ground. A plurality of ladder pieces 12 are provided, and the plurality of ladder pieces 12 are evenly distributed along the length direction of the support tube 11, and the ladder pieces 12 are rotatably arranged between the support tubes 11 on both sides.

[0027] Reference Figure 3 The pushing mechanism 2 includes a vertical rod 21, a horizontal rod 22, a support rod 1 23, a support rod 24, a support rod 3 25 and a connecting rod 26. Two vertical rods 21 are provided, and the two vertical rods 21 are symmetrically arranged and vertically fixed to the bottom surface of the support platform 101. The bottom ends of the vertical rods 21 are fixed to the ground, and the vertical rods 21 are located at the edge of the support platform 101 close to the moving ladder 1; the horizontal rod 22 is rotatably arranged between the vertical rods 21 on both sides, and the horizontal rod 22 is located below the edge of the support platform 101 close to the moving ladder 1 and close to the bottom surface of the support platform 101; the support rod 1 23 is hinged between the bottom of the vertical rod 21 and the middle of the support tube 11; the support rod 2 One end of the support rod 24 is hinged to the bottom of the support tube 11, and the other end of the support rod 24 is located below the support platform 101 and on the side of the cross bar 22 away from the moving ladder 1; one end of the support rod 3 25 is fixed to the cross bar 22, and the other end is located below the support platform 101 and on the side of the cross bar 22 away from the moving ladder 1. The end of the support rod 3 25 away from the cross bar 22 and the end of the support rod 24 away from the support tube 11 are mutually hinged; the connecting rod 26 is coaxially connected between the rotation axes of the hinge points of the support rods 3 25 and the support rods 2 24 on both sides. When the moving ladder 1 is in a vertical state, the connecting rod 26 is close to the bottom surface of the support platform 101, and when the moving ladder 1 is in an inclined state, the connecting rod 26 is close to the middle of the column 102. The bottom surface of the support platform 101 is installed with a driving mechanism 4 for driving the cross bar 22 to rotate.

[0028] The driving mechanism 4 is used to rotate the cross bar 22, and the rotation of the cross bar 22 drives the support rod three 25 to swing downward, and the downward swinging of the support rod three 25 drives the connecting rod 26 to swing downward, thereby driving the support rod two 24 to push the bottom of the movable ladder 1 to move to the side away from the supporting platform 101. At this time, under the support of the support rod one 23, the top of the movable ladder 1 will gradually approach the top surface of the supporting platform 101, and finally be loaded on the supporting platform 101, so that the movable ladder 1 can be inclined and connected between the supporting platform 101 and the ground.

[0029] Reference Figure 4 and Figure 5The driving mechanism 4 includes a bevel gear 1 41, a rotating rod 42, a bevel gear 2 43, a worm gear 1 44 and a driving assembly 45. The bevel gear 1 41 is coaxially connected to the middle of the crossbar 22; the rotating rod 42 is vertically rotatably arranged on the bottom surface of the supporting platform 101; the bevel gear 2 43 is coaxially connected to the rotating rod 42, and the bevel gear 2 43 and the bevel gear 1 41 are meshed with each other; the worm gear 1 44 is coaxially connected to the rotating rod 42, and the worm gear 1 44 is close to the bottom surface of the supporting platform 101.

[0030] Reference Figure 4 and Figure 5 The driving assembly 45 includes a mounting plate 451, a screw rod 452, a nut seat 453, a guide rod 454, a worm 455, and a driving motor 456. Two mounting plates 451 are provided, and the two mounting plates 451 are symmetrically arranged and vertically fixed to the bottom surface of the supporting platform 101, and the two mounting plates 451 are respectively located above the cross bar 22 and the connecting rod 26; the screw rod 452 is rotatably arranged between the mounting plates 451 on both sides, and the end of the screw rod 452 close to the cross bar 22 passes through the mounting plate 451; the nut seat 453 is installed on the screw rod 452; the guide rod 454 is fixed between the mounting plates 451 on both sides, and the guide rod 454 passes through the nut seat 453; the worm 455 is connected to the end of the screw rod 452 passing through one end of the mounting plate 451, and meshes with the worm wheel 44; the driving motor 456 is installed on the mounting plate 451 away from one end of the worm 455, and the driving motor 456 is used to drive the screw rod 452 to rotate.

[0031] The driving motor 456 is used to drive the screw rod 452 to rotate, the screw rod 452 drives the worm 455 to rotate, the worm 455 drives the worm wheel 44 to rotate, the worm wheel 44 drives the rotating rod 42 to rotate, the rotating rod 42 drives the bevel gear 2 43 to rotate, the bevel gear 2 43 drives the bevel gear 1 41 to rotate, and the bevel gear 1 41 drives the cross bar 22 to rotate.

[0032] As shown in Reference 6, a vertical plate 5 is vertically fixed to the bottom surface of the support platform 101, and the length direction of the vertical plate 5 is consistent with the length direction of the screw rod 452, and the vertical plate 5 is located on one side of the screw rod 452. A guide groove 51 is provided on the side of the vertical plate 5 close to the screw rod 452, and the guide groove 51 includes a short groove 512, a long groove 513 and a triangular groove 511 that are interconnected. The short groove 512 and the long groove 513 are respectively located on both sides of the triangular groove 511, and the length direction of the short groove 512 and the long groove 513 is consistent with the length direction of the vertical plate 5. The short groove 512 and the triangular groove 511 are both located at one end of the vertical plate 5 close to the connecting rod 26, and the end of the long groove 513 away from the triangular groove 511 is close to the rotating rod 42. A moving seat 6 is fixedly connected to the bottom surface of the nut seat 453, and a shaft rod 61 perpendicular to the vertical plate 5 is rotatably arranged on the moving seat 6. Two ends of the shaft rod 61 are located on both sides of the moving seat 6, and one end of the shaft rod 61 away from the vertical plate 5 extends out of the side of the nut seat 453 away from the vertical plate 5. A hook 62 is fixedly connected to the end of the shaft rod 61 away from the vertical plate 5. The hook 62 is used to hook the connecting rod 26 of the moving ladder 1 in a vertical state. The end of the shaft rod 61 close to the vertical plate 5 is vertically fixed to a swing bar 63 parallel to the vertical plate 5, and the end of the swing bar 63 away from the shaft rod 61 is vertically fixed to a guide rod 64 perpendicular to the vertical plate 5.

[0033] When the hook 62 hooks the connecting rod 26, the guide rod 64 is located in the short slot 512; when the movable seat 6 moves with the nut seat 453, the guide rod 64 first enters the triangular slot 511, and then passes over the triangular slot 511 to enter the long slot 513. After the guide rod 64 passes over the triangular slot 511, the hook 62 will flip and detach from the connecting rod 26, thereby unlocking the connecting rod 26 and ensuring that the connecting rod 26 swings downward. When the guide rod 64 passes over the triangular slot 511 from the long slot 513 to the short slot 512, the hook 62 can flip and hook the connecting rod 26, thereby preventing the connecting rod 26 from swinging downward, and thus locking the connecting rod 26.

[0034] Reference Figure 7 As shown, a rotating mechanism 3 for rotating the ladder piece 12 is arranged in the support tube 11, and the rotating mechanism 3 includes a common rod 31, a second worm 32, a strip rod 33, a second worm wheel 34, a third worm 35 and a third worm wheel 36. The common rod 31 is located in the support tube 11 and is coaxially connected to the second support rod 24. The common rod 31 is coaxially connected to the rotation axis of the ladder piece 12 that is closest to the plurality of pieces; the second worm 32 is coaxially connected to the common rod 31; the length direction of the strip rod 33 is consistent with the length direction of the support tube 11. The strip rod 33 is rotatably arranged at both ends of the support tube 11 in the same degree direction; the worm gear 2 34 is coaxially connected to the strip rod 33 and meshes with the worm gear 2 32; a plurality of worm gears 3 36 are provided, and the plurality of worm gears 3 36 are coaxially connected to the rotating shafts of each ladder piece 12 away from the same rod 31; a plurality of worm gears 3 35 are provided, and the plurality of worm gears 3 35 are respectively meshed with each worm gear 3 36, and the worm gear 3 35 is coaxially connected to the strip rod 33.

[0035] The swing of the support rod 24 can drive the rod 31 to rotate, and the rod 31 can drive the ladder piece 12 coaxially connected thereto to rotate, and the rotation of the rod 31 can drive the worm 2 32 to rotate, and the worm 2 32 drives the worm wheel 2 34 to rotate, and the rotation of the worm wheel 2 34 can drive the strip rod 33 to rotate, and the rotation of the strip rod 33 can drive each worm three 35 to rotate, and the worm three 35 can drive each worm wheel three 36 to rotate, and each worm wheel three 36 can drive the ladder piece 12 coaxially connected thereto to rotate, so that when the movable ladder 1 is moving in an inclined state, the ladder piece 12 will rotate and rotate to a horizontal state, so that maintenance personnel can use the movable ladder 1 to climb, and when the movable ladder 1 returns to a vertical state, the ladder piece 12 will reset to a vertical state, so that non-maintenance personnel cannot use the movable ladder 1 to climb.

[0036] This application can explain its functional principle through the following operation methods:

[0037] When the nut seat 453 in the driving assembly 45 moves, the moving seat 6 can move with the nut seat 453. When the moving seat 6 moves with the nut seat 453, the guide rod 64 will first enter the triangular groove 511, and then cross the triangular groove 511 to enter the long groove 513. After the guide rod 64 crosses the triangular groove 511, the hook 62 will flip over and disengage from the connecting rod 26, so that the connecting rod 26 can be unlocked.

[0038] As the connecting rod 26 is unlocked, the rotating rod 42 in the driving mechanism 4 will rotate driven by the driving assembly 45, and the rotating rod 42 will eventually drive the cross bar 22 to rotate. The rotation of the cross bar 22 can make the support rod three 25 swing downward, and the support rod three 25 can drive the support rod two 24 to push the wheels 13 of the moving ladder 1 to move, so that the moving ladder 1 can be moved into an inclined state. During the movement of the moving ladder 1, the swing of the support rod two 24 can drive the rotating mechanism 3 to unfold the ladder plates 12 on the moving ladder 1. The maintenance personnel can use the moving ladder 1 to climb onto the supporting platform 101, and then use the climbing ladder 104 on the tower body 103 to climb to the top of the tower body 103, so that the maintenance personnel can climb onto the tower body 103 without bringing their own herringbone ladder, which is convenient for the maintenance personnel to operate.

[0039] In addition, when the movable ladder 1 is reset to a vertical state, the connecting rod 26 will be reset close to the supporting platform 101, so that the connecting rod 26 is in a higher position, which can prevent unrelated personnel from pulling the connecting rod 26 downward, thereby further preventing non-maintenance personnel from using the movable ladder 1.

[0040] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. An easily repairable power tower, comprising a support platform (101), a column (102) fixed on the ground and used to support the support platform (101), a tower body (103) installed on the support platform (101), and a climbing ladder (104) fixed on the tower body (103), characterized in that: The support platform (101) is provided with a movable ladder (1) on one side of the climbing ladder (104), the movable ladder (1) comprising mutually parallel support tubes (11), a plurality of ladder plates (12) rotatably arranged between the support tubes (11) on both sides, and wheels (13) rotatably arranged at the bottom of the support tubes (11); a pushing mechanism (2) for pushing the movable ladder (1) in an inclined state is provided below the support platform (101); a rotating mechanism (3) for rotating the ladder plates (12) is provided inside the support tubes (11); the ladder plates (12) are horizontal when the movable ladder (1) is in an inclined state, and are vertical when the movable ladder (1) is in a vertical state; The pushing mechanism (2) comprises vertical rods (21) symmetrically arranged and vertically fixed to the bottom surface of the supporting platform (101), a horizontal rod (22) rotatably arranged between the vertical rods (21) on both sides and close to the supporting platform (101), a first support rod (23) hinged to the bottom of the vertical rod (21) and the middle of the supporting tube (11), a second support rod (24) one end of which is hinged to the bottom of the supporting tube (11) and the other end of which is located below the supporting platform (101), and a second support rod (24) one end of which is fixed to the bottom of the supporting tube (11) and the other end of which is located below the supporting platform (101). A support rod (25) is on the cross bar (22) and the other end of which is located below the support platform (101); the end of the support rod (25) away from the cross bar (22) and the end of the support rod (24) away from the support tube (11) are hinged to each other; a connecting rod (26) is coaxially connected between the rotation axes of the hinge points of the support rod (25) and the support rod (24) on both sides; and a driving mechanism (4) for driving the cross bar (22) to rotate is installed on the bottom surface of the support platform (101); The rotating mechanism (3) comprises a co-rod (31) located in the support tube (11) and coaxially connected to the second support rod (24), a second worm (32) coaxially connected to the co-rod (31), a strip rod (33) rotatably arranged at both ends of the support tube (11), and a second worm wheel (34) coaxially connected to the strip rod (33) and meshing with the second worm (32); the co-rod (31) is coaxially connected to the rotation axis of one of the ladder pieces (12); the strip rod (33) is coaxially connected to a third worm (35) near each ladder piece (12); and the rotation axis of each ladder piece (12) away from the co-rod (31) is coaxially connected to a third worm wheel (36) meshing with the third worm (35); The driving mechanism (4) comprises a bevel gear 1 (41) coaxially connected to the crossbar (22), a rotating rod (42) vertically rotatably arranged on the bottom surface of the supporting platform (101), a bevel gear 2 (43) coaxially connected to the rotating rod (42) and meshing with the bevel gear 1 (41), a worm gear 1 (44) coaxially connected to the rotating rod (42), and a driving assembly (45) for driving the worm gear 1 (44) to rotate.

2. The easy-to-maintain power tower according to claim 1, characterized in that: The driving assembly (45) comprises mounting plates (451) respectively located above the cross bar (22) and the connecting rod (26) and vertically fixed to the bottom surface of the supporting platform (101), a screw rod (452) rotatably arranged between the mounting plates (451) on both sides, a nut seat (453) mounted on the screw rod (452), a guide rod (454) fixed between the mounting plates (451) on both sides and passing through the nut seat (453), a worm (455) coaxially connected to the end of the screw rod (452) and meshing with the worm gear (44), and a driving motor (456) mounted on the mounting plate (451) and driving the screw rod (452) to rotate.

3. The easy-to-maintain power tower according to claim 2, characterized in that: A vertical plate (5) fixedly connected to the bottom surface of the support platform (101) is arranged on one side of the screw rod (452); a guide groove (51) is provided on the side of the vertical plate (5) close to the screw rod (452); a moving seat (6) is fixedly connected to the bottom surface of the nut seat (453); a shaft (61) perpendicular to the vertical plate (5) is rotatably arranged on the moving seat (6); a hook (62) is fixedly connected to one end of the shaft (61) away from the vertical plate (5); the hook (62) is used to hook the connecting rod (26) when the movable ladder (1) is in a vertical state; and a shaft (61) is vertically fixedly connected to the connecting rod (26) at one end close to the vertical plate (5). A swing bar (63) is parallel to the vertical plate (5), and one end of the swing bar (63) away from the shaft rod (61) is vertically fixedly connected to a guide rod (64) vertical to the vertical plate (5). The guide groove (51) includes a triangular groove (511) opened on the vertical plate (5), short grooves (512) and long grooves (513) located on both sides of the triangular groove (511). When the hook (62) is hooked on the connecting rod (26), the guide rod (64) is located in the short groove (512). After the guide rod (64) passes over the triangular groove (511) and enters the long groove (513), the hook (62) flips over and detaches from the connecting rod (26).

4. The easy-to-maintain power tower according to claim 3, characterized in that: One end of the shaft rod (61) away from the vertical plate (5) extends out from the side of the nut seat (453) away from the vertical plate (5).

5. The easy-to-maintain power tower according to claim 3, characterized in that: One end of the long slot (513) away from the triangular slot (511) is close to the rotating rod (42).

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