A lifting device for installing a power distribution cabinet

Abstract

The present invention relates to the technical field of lifting equipment, and specifically discloses a lifting device for installing a distribution cabinet, comprising: a slide rail, a lifting box and a steel wire rope, the lifting box is slidably assembled on the slide rail, the steel wire rope is arranged in the lifting box and can be wound or released, an upper rod body is fixedly installed on the bottom of the lifting box, a lower rod body is arranged directly below the upper rod body, and the steel wire rope passes through the upper rod body and the lower rod body in sequence, and a telescopic component is arranged between the upper rod body and the lower rod body for adjusting the distance between the upper rod body and the lower rod body; the lifting device for installing a distribution cabinet of the present invention can, during the process of lowering the parts, the telescopic component cooperates with the traction component to drive the lower bracket to automatically push the parts to the installation station, thereby eliminating the trouble of manual dragging by the staff, reducing the work intensity of the staff, enabling the parts to be quickly moved to the installation station, and improving the convenience and efficiency of the installation of the parts.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting equipment, and in particular to a hoisting device for installing a power distribution cabinet. Background Art

[0002] The distribution cabinet (box) is divided into power distribution cabinet (box), lighting distribution cabinet (box), and metering cabinet (box). It is the final equipment of the power distribution system. The distribution cabinet is a general term for the motor control center. The distribution cabinet is used in places where the load is relatively dispersed and there are fewer circuits; the motor control center is used in places where the load is concentrated and there are more circuits. They distribute the power of a circuit of the upper-level distribution equipment to the nearest load.

[0003] The internal structure of the power distribution cabinet usually includes switchgear, measuring instruments, protective electrical appliances and auxiliary equipment, which are assembled in a closed or semi-closed metal cabinet or on a screen to form a low-voltage power distribution device. When the power distribution cabinet is operating normally, the circuit can be connected or disconnected through manual or automatic switches; in the event of a fault or abnormal operation, the protective electrical appliance can cut off the circuit or alarm, while the measuring instrument can display various parameters during operation and adjust certain electrical parameters. When the power distribution cabinet is in use, it is usually necessary to first install the switchgear, measuring instruments, protective electrical appliances and auxiliary equipment into the cabinet. During the installation process, the switchgear, measuring instruments, protective electrical appliances and auxiliary equipment and other components are hoisted to the cabinet through a hoisting device, and then installed. After the installation is completed, the power distribution cabinet is put into normal use.

[0004] The patent application document with publication number CN107879256A discloses a distribution cabinet handling device, including a base, a first support column is fixedly connected to a middle position on the top of the base, support rods are rotatably connected to symmetrical positions on the outer surface of the first support column, an end of the first support column away from the base is fixedly connected to a hydraulic device, a side of the hydraulic device away from the first support column is fixedly connected to a rotating chassis, a side of the rotating chassis away from the hydraulic device is rotatably connected to an L-shaped support frame, a telescopic device is fixedly connected to the bottom of the inner surface of the L-shaped support frame, a first groove is provided on the side of the L-shaped support frame away from the rotating chassis, a rotating rod is provided in the inner cavity of the first groove, a winding device is fixedly connected to one end of the rotating rod close to the L-shaped support frame, a counterweight is fixedly connected to the side of the winding device close to the rotating chassis, a steel wire rope is slidably connected to the side of the winding device close to the rotating rod, a second groove is provided on the side of the rotating rod away from the telescopic device, and the bottom of the inner cavity of the second groove is fixedly connected to one side of the L-shaped support frame The gear wheel is connected with the gear of the first motor, and the gear wheel is connected with the gear of the second motor through the coupling, and the gear wheel is connected with the gear of the first motor to the gear wheel of the second motor.

[0005] However, the following problems still exist in this solution. During the lifting process of the components of the distribution cabinet, after the components are moved into the interior of the distribution cabinet, most of the components can only be moved to the side of the installation station. During the lowering process, workers need to cooperate in dragging the components to enable the components to fully enter the installation station of the distribution cabinet. However, the weight of the components is often large, and it is difficult and slow for workers to drag them. Not only is the labor intensity high and the installation efficiency low, but the workers are too close to the lowered components during the dragging process, which increases the risk factor and is not conducive to the safe and efficient assembly of the distribution cabinet. Summary of the invention

[0006] The present invention provides a lifting device for installing a power distribution cabinet, aiming to solve the problem in the related art that during the lowering process of parts, workers need to cooperate in dragging so that the parts can completely enter the installation position in the power distribution cabinet.

[0007] A lifting device for installing a power distribution cabinet of the present invention comprises a slide rail, a lifting box and a steel wire rope, wherein the lifting box is slidably mounted on the slide rail, the steel wire rope is arranged in the lifting box and can be wound or released, an upper rod body is fixedly mounted on the bottom of the lifting box, a lower rod body is arranged directly below the upper rod body, and the steel wire rope passes through the upper rod body and the lower rod body in sequence, a telescopic assembly is arranged between the upper rod body and the lower rod body, and is used to adjust the distance between the upper rod body and the lower rod body, and a traction assembly is arranged on one side of the telescopic assembly, and is used to pull the telescopic assembly to rotate relative to the upper rod body;

[0008] The telescopic assembly includes a crossbar and a cylinder, the cylinder is fixedly mounted on the end of the crossbar, the base of the cylinder is rotatably mounted on the bottom of the upper rod body, and the telescopic end of the cylinder is arranged on the lower rod body;

[0009] The traction assembly comprises a traction disc and a traction rope. The traction disc has two traction discs which are both rotatably arranged at the bottom of the upper rod body. The traction rope is arranged in the traction disc, and one end of the traction rope away from the traction disc is arranged on the cross bar.

[0010] Beneficial effect: After the wire rope suspends the components to the side of the installation station, when the wire rope is released, the traction assembly pulls the telescopic assembly and the lower rod body to rotate under the upper rod body, so that the lower rod body pushes the wire rope to move the components toward the installation station, and at the same time, the telescopic assembly pushes the lower rod body gradually away from the upper rod body, increasing the distance between the upper rod body and the lower rod body, so that the lower rod body can push the wire rope and the components to a farther distance, so that after the components are moved to the side of the installation station, they can be automatically pushed to the installation station without the need for staff to drag them, thereby reducing the work intensity of staff, improving the convenience and safety factor of component installation, and making the lifting of components more convenient.

[0011] Preferably, an upper ring body is fixedly mounted on the end of the upper rod body, the wire rope passes through the upper ring body, two symmetrically arranged side plates are fixedly mounted on the upper rod body, and two traction discs are rotatably mounted on the bottom of the two side plates respectively.

[0012] Beneficial effects: The upper ring body provides limited support for the wire rope to reduce the swing amplitude of the parts, and the side plate supports the traction disc so that the traction disc maintains a certain distance from the upper rod body to facilitate the winding of the traction rope.

[0013] Preferably, a pulley is fixedly installed at the bottom of the side panel, the traction rope is carried in the pulley, a connecting rod is fixedly installed at the top of the side panel, and the top end of the connecting rod is fixedly connected to the bottom of the lifting box.

[0014] Preferably, the lower rod body includes a fixed rod, a movable rod, a rotating shaft and a screw. The fixed rod is fixedly mounted on the telescopic end of the cylinder, the rotating shaft is rotatably assembled inside the fixed rod, two screws are provided and are respectively fixedly connected to the two ends of the rotating shaft, two movable rods are provided and are respectively threadedly connected to the outside of the two screws, a lower ring body is fixedly mounted on the end of the movable rod, and the wire rope passes through the upper ring body and then passes through the inside of the lower ring body.

[0015] Beneficial effect: By adjusting the distance between the two lower rod bodies, the drooping spacing of the two steel ropes can be adjusted, and then the distance between the two steel ropes and the fixing points of the components can be adjusted according to the length of the components, so as to better bear the load and facilitate the lifting of components of different lengths; at the same time, the lower ring body provides secondary limit support for the steel rope, which can further limit the swing amplitude of the components, and by rotating the rotating shaft to make the lead screw push the movable rod to move, the distance between the two movable rods can be adjusted, and then the limit position between the two lower ring bodies and the steel ropes can be adjusted to improve the lifting effect of the steel rope for components of different lengths.

[0016] Preferably, the end of the fixed rod is fixedly connected to a limiting rod, a plug hole is provided inside the movable rod, and the limiting rod is slidably connected inside the plug hole.

[0017] Beneficial effect: The movable rod can be limited by the sliding of the limit rod in the socket, so that the lead screw will not drive the movable rod to rotate, but can only push the movable rod to move horizontally. At the same time, the limit rod can share the pressure on the lead screw, avoiding the lead screw from bending and deformation due to excessive pressure.

[0018] Preferably, connecting seats are fixedly installed on two opposite sides of the middle of the cross bar, and the bottom end of the traction rope is fixedly connected to the connecting seat.

[0019] Preferably, a gear is rotatably mounted on the bottom of the upper rod body, a gear ring is fixedly mounted on the traction disc, and the gear ring is meshed with the gear, a motor is fixedly mounted on the top of the upper rod body, and the output end of the motor is fixed to the gear.

[0020] Beneficial effect: The motor drives the gear to rotate, pushing the gear ring to rotate the traction disc, and then the traction rope can be reeled in or released.

[0021] Preferably, a winch is provided inside the hoisting box, and the top end of the wire rope is arranged on the reel of the winch.

[0022] Preferably, a U-shaped clip is installed at the end of the steel wire rope, and bolts are threadedly connected on two opposite side walls of the U-shaped clip to close the opening of the U-shaped clip.

[0023] Beneficial effect: The U-shaped clip and the bolt are used to fix the steel wire rope to the parts.

[0024] The beneficial effects of the present invention are:

[0025] 1. When the present invention is in use, during the process of lowering parts, the telescopic assembly cooperates with the traction assembly to drive the lower bracket to automatically push the parts to the installation station, eliminating the trouble of manual dragging by the staff, which can reduce the work intensity of the staff, enable the parts to be quickly moved to the installation station, and improve the convenience and efficiency of the installation of parts. In addition, during the lowering of parts, the staff can be kept away from the parts, thereby improving the safety factor and making the lifting of parts safer and more efficient.

[0026] 2. When the present invention is in use, the sagging spacing of the two steel wire ropes can be adjusted by adjusting the distance between the two lower rods, and then the distance between the two steel wire ropes and the fixing points of the components can be adjusted according to the length of the components, so as to better bear the load and facilitate the lifting of components of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a structural schematic diagram of the present invention showing the connection relationship between the telescopic assembly and the upper bracket.

[0029] Figure 3 It is a structural schematic diagram of the present invention showing the connection relationship between the traction assembly and the upper bracket.

[0030] Figure 4 It is a structural schematic diagram of the present invention showing the connection relationship between the driving assembly and the upper rod body.

[0031] Figure 5 It is a structural schematic diagram showing the disassembled state of the lower rod body of the present invention.

[0032] Reference numerals:

[0033] 10. Slide rail; 20. Lifting box; 21. Wire rope; 22. U-shaped clip; 23. Bolt; 24. Support shaft; 30. Upper bracket; 31. Upper rod body; 32. Upper ring body; 33. Side plate; 34. Pulley; 35. Connecting rod; 40. Lower bracket; 41. Lower rod body; 411. Fixed rod; 412. Movable rod; 413. Rotating shaft; 414. Lead screw; 415. Limit rod; 416. Socket; 42. Lower ring body; 50. Telescopic assembly; 51. Cross bar; 511. Connecting seat; 52. Cylinder; 60. Traction assembly; 61. Traction disc; 62. Traction rope; 70. Driving assembly; 71. Gear; 72. Gear ring; 73. Motor. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figures 1 to 5 As shown, a lifting device for installing a distribution cabinet of the present invention includes a slide rail 10, a lifting box 20, an upper bracket 30, a lower bracket 40, a telescopic assembly 50 and a traction assembly 60. The lifting box 20 is arranged at the bottom of the slide rail 10, and can slide along the slide rail 10 for lifting parts. The upper bracket 30 and the lower bracket 40 are both located below the lifting box 20, and can provide limited support for the parts during lifting. The telescopic assembly 50 is arranged between the upper bracket 30 and the lower bracket 40, and is used to adjust the distance between the upper bracket 30 and the lower bracket 40. The traction assembly 60 is arranged between the upper bracket 30 and the telescopic assembly 50, and can pull the telescopic assembly 50 to rotate on the upper bracket 30 to adjust the angle between the telescopic assembly 50 and the upper bracket 30.

[0036] refer to Figure 1-Figure 4 A wire rope 21 and a winch are arranged inside the hoisting box 20. There are two wire ropes 21 and both are arranged on the reel of the winch. The winch can reel in or release the wire rope 21. A U-shaped card 22 is installed at the end of the wire rope 21. A connecting rod (not shown in the figure) can be fixedly arranged on the U-shaped card 22. The end of the wire rope 21 is rotatably matched with the connecting rod. The thread on the connecting rod is matched with a conical locking sleeve for squeezing, locking and unlocking the wire rope 21, so that The U-shaped card 22 can be rotated and adjusted on the wire rope 21 and then locked; bolts 23 are threadedly connected on the opposite side walls of the U-shaped card 22, which are used to close the opening of the U-shaped card 22, so as to fix the parts to the bottom end of the wire rope 21, and then the wire rope 21 is reeled in by the winch to lift the parts. The bottom of the lifting box 20 is rotatably equipped with a support shaft 24 to support the wire rope 21 and reduce the friction force on the wire rope 21 during the retraction and release.

[0037] refer to Figure 1 and Figure 2 The upper bracket 30 includes an upper rod body 31 and an upper ring body 32. The upper rod body 31 is fixedly installed at the bottom of the lifting box 20. The upper ring body 32 has two ends fixedly installed on the upper rod body 31. The two steel wire ropes 21 pass through the two upper ring bodies 32 respectively. During the lifting of parts, the steel wire ropes 21 can be initially limited and supported, reducing the distance between the swinging part of the steel wire rope 21 and the parts, thereby reducing the swingable range of the steel wire rope 21, thereby achieving the purpose of reducing the swing amplitude of the parts.

[0038] refer to Figure 1 , Figure 3 as well as Figure 4Two symmetrically arranged side panels 33 are fixedly mounted on the upper rod body 31, and pulleys 34 are fixedly mounted at the bottom of the two side panels 33 to facilitate the installation of the traction assembly 60. A connecting rod 35 is fixedly mounted on the top of the side panel 33, and the top end of the connecting rod 35 is fixedly connected to the bottom of the lifting box 20. The upper rod body 31 is fixed to the bottom of the lifting box 20 through the connecting rod 35, so that the lifting box 20 can provide stable support for the wire rope 21.

[0039] refer to Figure 1 and Figure 2 The lower bracket 40 includes a lower rod body 41 and a lower ring body 42. The lower rod body 41 is located directly below the upper rod body 31. The lower ring body 42 has two ends respectively arranged at the lower rod body 41. The wire rope 21 passes through the upper ring body 32 and then passes through the inside of the lower ring body 42. During the lifting of parts, the wire rope 21 can be supported by a secondary limit position, further reducing the distance between the swinging part of the wire rope 21 and the parts, reducing the swingable range of the wire rope 21, and then reducing the swing amplitude of the parts again.

[0040] refer to Figure 2 and Figure 5 The lower rod body 41 includes a fixed rod 411, a movable rod 412, a rotating shaft 413 and a screw 414. The rotating shaft 413 is rotatably assembled inside the fixed rod 411. There are two screws 414, which are respectively fixedly connected to the two ends of the rotating shaft 413. There are two movable rods 412, which are respectively threadedly connected to the outside of the two screws 414, and the two lower ring bodies 42 are respectively fixedly installed on the ends of the two movable rods 412. By rotating the rotating shaft 413, the screw 414 is rotated to push the movable rod 412 to move, so that the two movable rods 412 and the lower ring body 42 are moved away from each other, thereby increasing the distance between the two steel wire ropes 21, so as to better fix parts of different lengths.

[0041] refer to Figure 5 The end of the fixed rod 411 is fixedly connected to the limiting rod 415, and a socket 416 is provided inside the movable rod 412, and the limiting rod 415 is slidably connected inside the socket 416. The movable rod 412 is limited by the sliding of the limiting rod 415 in the socket 416, so that it cannot rotate with the screw 414 and can only move horizontally. At the same time, the limiting rod 415 can support the movable rod 412 to share the pressure on the screw 414, thereby preventing the screw 414 from bending due to excessive load.

[0042] refer to Figure 1 and Figure 2The telescopic assembly 50 includes a cross bar 51 and a cylinder 52. The cross bar 51 is arranged between the upper rod body 31 and the lower rod body 41. There are two cylinders 52, which are fixedly installed at both ends of the cross bar 51 respectively. The base of the cylinder 52 is rotatably assembled at the bottom of the upper rod body 31. The telescopic end of the cylinder 52 is fixedly installed on the fixed rod 411 of the lower rod body 41. The lower rod body 41 is driven to rise and fall by the extension and contraction of the cylinder 52, and then the distance between the upper rod body 31 and the lower rod body 41 can be adjusted. Connecting seats 511 are fixedly installed on the opposite sides of the middle part of the cross bar 51 for connecting the traction assembly 60 with the cross bar 51.

[0043] refer to Figure 3 and Figure 4 The traction assembly 60 includes a traction disc 61 and a traction rope 62. The traction disc 61 and the traction rope 62 have two traction discs 61 and traction ropes 62. The two traction discs 61 are respectively rotatably connected to the bottom of the two side plates 33. The two traction ropes 62 are respectively arranged in the two traction discs 61, and the two traction ropes 62 are respectively carried in the two pulleys 34, and one end of the two traction ropes 62 away from the traction discs 61 is respectively fixedly connected to the two connecting seats 511. A driving assembly 70 is arranged on one side of the traction disc 61 for driving the two traction discs 61 to rotate synchronously, so that one of the traction discs 61 releases the traction rope 62 during rotation, and the other traction disc 61 reels the traction rope 62 during rotation, pulls the connecting seat 511 and the cross bar 51 to move, and the cylinder 52 rotates at the bottom of the upper rod body 31, so that the lower ring body 42 pushes the wire rope 21 to gradually move the hoisted parts to the side, and at the same time, the winch lowers the wire rope 21 during the movement of the parts, and then automatically pushes and lowers the parts to the installation station, saving the trouble of the staff to drag the parts.

[0044] refer to Figure 3 and Figure 4 The drive assembly 70 includes a gear 71 and a gear ring 72. The gear 71 is rotatably assembled at the bottom of the upper rod body 31. Two gear rings 72 are respectively fixedly mounted on the two traction discs 61, and the two gear rings 72 are meshed with the gear 71. The two gear rings 72 are driven by the rotation of the gear 71, so that the two traction discs 61 can rotate synchronously, one of which releases the traction rope 62 and the other reels the traction rope 62. In this solution, in order to facilitate the rotation of the drive gear 71, a motor 73 is also fixedly mounted on the upper rod body 31, and the output end of the motor 73 is fixed to the gear 71, so that the motor 73 can drive the gear 71 to rotate. In other examples, a hydraulic cylinder and a rack can also be used to cooperate, and the hydraulic cylinder drives the rack to move, so that the rack drives the gear 71 to rotate, so as to achieve the purpose of driving the gear 71 to rotate.

[0045] In the present invention, during the lowering process of parts, the telescopic assembly 50 cooperates with the traction assembly 60 to drive the lower bracket 40 to automatically push the parts to the installation station, eliminating the trouble of manual dragging by the staff, which can not only reduce the work intensity of the staff, but also enable the parts to be quickly moved to the installation station, thereby improving the convenience and efficiency of the installation of parts, and during the lowering of the parts, the staff can be kept away from the parts, thereby improving the safety factor and making the lifting of the parts safer and more efficient; by adjusting the distance between the two lower ring bodies 42, the drooping spacing of the two steel ropes 21 can be adjusted, and then the distance between the two steel ropes 21 and the fixed points of the parts can be adjusted according to the length of the parts, so as to better bear the load and facilitate the lifting of parts of different lengths.

[0046] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A lifting device for installing a power distribution cabinet, comprising a slide rail (10), a lifting box (20) and a steel wire rope (21), wherein the lifting box (20) is slidably mounted on the slide rail (10), and the steel wire rope (21) is arranged in the lifting box (20) and can be wound or released, characterized in that: An upper rod body (31) is fixedly mounted on the bottom of the lifting box (20); a lower rod body (41) is arranged directly below the upper rod body (31); and a steel wire rope (21) passes through the upper rod body (31) and the lower rod body (41) in sequence; a telescopic assembly (50) is arranged between the upper rod body (31) and the lower rod body (41) for adjusting the distance between the upper rod body (31) and the lower rod body (41); and a traction assembly (60) is arranged on one side of the telescopic assembly (50) for pulling the telescopic assembly (50) to rotate relative to the upper rod body (31); The telescopic assembly (50) comprises a cross bar (51) and a cylinder (52), wherein the cylinder (52) is fixedly mounted on the end of the cross bar (51), the base of the cylinder (52) is rotatably mounted on the bottom of the upper rod body (31), and the telescopic end of the cylinder (52) is arranged on the lower rod body (41); The traction assembly (60) comprises a traction disc (61) and a traction rope (62). The traction disc (61) has two traction rods which are both rotatably arranged at the bottom of the upper rod body (31). The traction rope (62) is arranged in the traction disc (61), and one end of the traction rope (62) away from the traction disc (61) is arranged on the cross bar (51).

2. A lifting device for installing a power distribution cabinet according to claim 1, characterized in that: An upper ring body (32) is fixedly mounted on the end of the upper rod body (31), and the steel wire rope (21) passes through the upper ring body (32). Two symmetrically arranged side plates (33) are fixedly mounted on the upper rod body (31), and two traction discs (61) are rotatably mounted on the bottoms of the two side plates (33), respectively.

3. A lifting device for installing a power distribution cabinet according to claim 2, characterized in that: A pulley (34) is fixedly mounted on the bottom of the side plate (33), and a traction rope (62) is carried in the pulley (34). A connecting rod (35) is fixedly mounted on the top of the side plate (33), and the top end of the connecting rod (35) is fixedly connected to the bottom of the lifting box (20).

4. A lifting device for installing a power distribution cabinet according to claim 1, characterized in that: The lower rod body (41) comprises a fixed rod (411), a movable rod (412), a rotating shaft (413) and a lead screw (414); the fixed rod (411) is fixedly mounted on the telescopic end of the cylinder (52); the rotating shaft (413) is rotatably mounted inside the fixed rod (411); two lead screws (414) are provided and are respectively fixedly connected to the two ends of the rotating shaft (413); two movable rods (412) are provided and are respectively threadedly connected to the outside of the two lead screws (414); a lower ring body (42) is fixedly mounted on the end of the movable rod (412); and the steel wire rope (21) passes through the upper ring body (32) and then passes through the inside of the lower ring body (42).

5. A lifting device for installing a power distribution cabinet according to claim 4, characterized in that: The end of the fixed rod (411) is fixedly connected to the limiting rod (415), a plug hole (416) is provided inside the movable rod (412), and the limiting rod (415) is slidably connected inside the plug hole (416).

6. A lifting device for installing a power distribution cabinet according to claim 1, characterized in that: Connecting seats (511) are fixedly mounted on two opposite sides of the middle of the crossbar (51), and the bottom end of the traction rope (62) is fixedly connected to the connecting seat (511).

7. A lifting device for installing a power distribution cabinet according to claim 1, characterized in that: A gear (71) is rotatably mounted on the bottom of the upper rod body (31), a gear ring (72) is fixedly mounted on the traction plate (61), and the gear ring (72) meshes with the gear (71), and a motor (73) is fixedly mounted on the top of the upper rod body (31), and an output end of the motor (73) is fixed to the gear (71).

8. A lifting device for installing a power distribution cabinet according to claim 1, characterized in that: A winch is arranged inside the hoisting box (20), and the top end of the steel wire rope (21) is arranged on a reel of the winch.

9. A lifting device for installing a power distribution cabinet according to claim 8, characterized in that: A U-shaped clamp (22) is installed at the end of the steel wire rope (21), and bolts (23) are threadedly connected on two opposite side walls of the U-shaped clamp (22) for closing the opening of the U-shaped clamp (22).

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