Hydraulic jacking light derrick lifting device

Abstract

The invention relates to the technical field of holding pole lifting, and discloses a hydraulic jacking light holding pole lifting device which comprises a holding tower column body and a bearing mechanism used for bearing the holding tower column body, an outer stay wire mechanism is arranged at the top of the holding tower column body, and the bearing mechanism is connected to a main material of an iron tower through a plurality of tower body connecting pieces. A hydraulic mechanism is fixedly connected to the bottom end of the tower embracing column body and comprises an outer protective steel frame, and four hydraulic cylinders are fixedly installed in the outer protective steel frame. The hydraulic jacking mechanism is additionally arranged on the basis of an original internal suspension type derrick, a bearing system is improved, and the effect of rapidly lifting a tower cylinder can be achieved through cooperation of operation of the hydraulic mechanism and the bearing mechanism; compared with a traditional lifting mode, an external traction rope and corresponding traction devices and spare and accessory parts do not need to be arranged before the derrick is lifted every time, derrick lifting operation is faster and more efficient, cooperation of multiple groups of personnel is not needed, the labor cost is saved, and the operation difficulty is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of boom lifting, and more specifically to a hydraulic jacking light boom lifting device. Background Art

[0002] The boom is a kind of column used for lifting, which usually works with winches, pulleys, wire ropes, etc., and can lift heavy objects on site. Among them, the internal suspension boom is the most common type of boom in tower construction. The internal suspension boom mainly relies on its unique suspension system and lifting mechanism. During the tower assembly process, the internal suspension boom uses the assembled tower body section to suspend the boom in the center of the tower body truss through the supporting mechanism (composed of supporting wire ropes, balance pulleys and other components, used to support the boom and keep it suspended in the center of the tower body truss) and the external tensioning mechanism (composed of multiple wire ropes and corresponding rigging, fixed on the four main materials of the tower or other stable structures). In this way, the boom can be used as a lifting fulcrum, and the various components of the tower can be gradually lifted to the predetermined height using ropes or similar equipment to complete the assembly.

[0003] The traditional internal suspension boom lifting method is to use external traction equipment in conjunction with traction ropes and multiple pulley groups to stretch the bottom end of the boom upward to achieve the boom lifting effect. However, this lifting method is complicated. Each lifting process requires the traction rope, pulley group and other components to be rearranged and adjusted. During operation, multiple groups of workers need to coordinate and cooperate, which makes the operation difficult and inefficient. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a hydraulic jacking light boom lifting device to solve the problems of difficult operation and low efficiency of the existing boom lifting method in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a hydraulic jacking light-weight arm lifting device, comprising a tower holding column and a supporting mechanism for supporting the tower holding column, the top of the tower holding column is provided with an external wire pulling mechanism, the supporting mechanism is connected to the main material of the iron tower through a plurality of tower body connecting pieces, the bottom end of the tower holding column is fixedly connected with a hydraulic mechanism, the hydraulic mechanism comprises an outer protective steel frame, and four hydraulic cylinders are fixedly installed inside the outer protective steel frame; The supporting mechanism is composed of four load-bearing steel wires and four suspension pulleys. The suspension pulleys are connected to the tower body connecting parts. One ends of the four load-bearing steel wires are respectively fixed at the four corners of the bottom end of the outer protective steel frame. The other ends of the four load-bearing steel wires respectively pass through the four suspension pulleys and connect with the output ends of four hydraulic cylinders. The output of the hydraulic cylinder is used to expand the distance between the two ends of the load-bearing steel wires, shorten the distance between the bottom end of the outer protective steel frame and the tower body connecting parts, and lift the tower column.

[0006] Furthermore, the output end of the hydraulic cylinder is fixedly connected to a supporting pulley, the bottom center of the outer protective steel frame is fixedly connected to a central column, and the load-bearing steel wire passes around the bottom of the supporting pulley and is connected to the central column.

[0007] Furthermore, a U-shaped anti-slip frame is fixedly connected to the bottom of the support pulley, a support frame is fixedly connected to the bottom of the hydraulic cylinder, and the load-bearing steel wire passes through the inside of the U-shaped anti-slip frame.

[0008] Furthermore, a truncation is provided on the load-bearing steel wire, and a telescopic steel wire group is fixedly connected to the truncation. The telescopic steel wire group is used to adjust the length of the load-bearing steel wire and to limit the section of the load-bearing steel wire that reaches the connection point of the outer protective steel frame with the suspension pulley as the node to always have an inclination.

[0009] Furthermore, the telescopic steel wire group includes a winding mechanism and a pulley connector. One side of the winding mechanism is fixedly connected to a main wire through a connecting block, and the other end of the main wire passes around the pulley connector and docks with the winding end of the winding mechanism.

[0010] Furthermore, the winding mechanism includes a shell plate, a winding disk is movably sleeved on one side of the shell plate, a worm gear transmission mechanism is arranged inside the shell plate, a motor is fixedly mounted on the top of the shell plate, the output end of the motor is connected to the winding disk through the worm gear transmission mechanism, an anti-slip ring is arranged on one side of the shell plate, and the main wire passes through the anti-slip ring and is wound on the winding disk.

[0011] Furthermore, the suspension pulley includes a fixed shell, a pulley groove c and an accessory groove d are arranged inside the fixed shell, a pulley main part is movably sleeved in the pulley groove c, a U-shaped plate is arranged in the accessory groove, a turntable is movably sleeved on the inner wall of the U-shaped plate, an arc-shaped protrusion is arranged on the side wall of the turntable, and teeth are arranged on the side wall of the arc-shaped protrusion, the turntable is transmission-connected to the inner wall of the U-shaped plate through a torsion spring, and a hook is fixedly connected to the top of the fixed shell.

[0012] Furthermore, a vertical slide groove is provided in the accessory groove d inside the fixed shell, and the U-shaped plate is slidably sleeved in the vertical slide groove. A through hole that penetrates into the accessory groove d is opened at the top of the fixed shell, and a double-headed telescopic rod is fixedly connected in the through hole. The bottom end of the double-headed telescopic rod is fixedly connected to the top of the double-headed telescopic rod, and the top end is fitted with the end of the double-headed telescopic rod. The double-headed telescopic rod is used to synchronously control the opening and closing of the hook opening and the lifting and lowering of the U-shaped plate.

[0013] Furthermore, the double-headed telescopic rod includes a cylinder shell, which is fixedly connected to the inner wall of the through hole of the fixed shell, a rotary block is rotatably sleeved inside the cylinder shell, a threaded column 1 is fixedly connected to the bottom of the rotary block, a bottom column is threadedly sleeved on one side wall of the threaded column, the bottom end of the bottom column is fixedly connected to the U-shaped plate, a top column is fixedly connected to the top of the rotary block, a threaded column 2 is slidably sleeved on the side wall of the top column, a threaded cylinder is fixedly connected to the top of the cylinder shell, and the threaded column 2 is threadedly sleeved on the inner wall of the threaded cylinder.

[0014] Furthermore, the bottom column and the top column are both polygonal columns, the shape and size of the inner cavity of the cylinder shell match those of the bottom column, and the shape and size of the inner cavity of the threaded column match those of the top column.

[0015] Technical effects and advantages of the present invention: The present invention adds a hydraulic jacking mechanism on the basis of the original internal suspension type holding pole, and improves the supporting system. Through the operation of the hydraulic mechanism and the supporting mechanism, the effect of quickly lifting the tower column can be achieved. Compared with the traditional lifting method, there is no need to lay an external traction rope and corresponding traction devices and spare parts before each holding pole lifting, making the holding pole lifting operation faster and more efficient, and no need for multiple groups of personnel to cooperate to save labor costs and reduce the difficulty of operation; The supporting mechanism is mainly composed of four load-bearing steel wires and a suspension pulley for connecting the tower body connector. A telescopic steel wire group is also provided on the load-bearing steel wire. By providing the telescopic steel wire group, the length of the load-bearing steel wire can be conveniently adjusted. When the connection distance between the suspension pulley and the tower body connector is too long or too short, the length of the load-bearing steel wire can be adjusted to improve the fault tolerance of the connection between the supporting mechanism and the tower body connector. At the same time, it also has a limiting effect on the angle of the load-bearing steel wire to avoid the safety hazard caused by the load-bearing steel wire tending to the horizontal state; In addition, the suspension pulley structure has been improved to limit the load-bearing steel wire to one-way sliding, preventing the tower column from falling during the retraction of the hydraulic mechanism, thereby improving the safety performance of the device. At the same time, the structural design of the suspension pulley also has an important function, that is, when the suspension pulley is disconnected from the tower body connecting piece, it can automatically cancel the one-way restriction effect on the load-bearing steel wire, so that after the tower column is lifted, the supporting mechanism can reduce the operating steps when docking with the higher tower body connecting piece, making the device more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the supporting mechanism and hydraulic mechanism structure; Figure 3 For the present invention Figure 2 Schematic diagram of the bottom structure of the outer protective steel frame; Figure 4For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 For the present invention Figure 2 Schematic diagram of the load-bearing steel wire structure; Figure 6 For the present invention Figure 5 A schematic diagram of the structure of the telescopic wire group; Figure 7 For the present invention Figure 6 Schematic diagram of the winding mechanism structure; Figure 8 For the present invention Figure 2 Schematic diagram of the suspension pulley structure in FIG. Fig. 9 For the present invention Figure 8 Schematic diagram of the double-ended telescopic rod structure.

[0017] The accompanying drawings are marked as follows: 1, tower holding column; 2, external wire pulling mechanism; 3, supporting mechanism; 4, tower body connecting piece; 5, hydraulic mechanism; 31, load-bearing steel wire; 32, hanging pulley; 51, outer protective steel frame; 52, hydraulic cylinder; 53, center column; 54, supporting pulley; 55, U-shaped anti-slip frame; 56, supporting frame; 311, telescopic steel wire group; 312, main body wire; 313, winding mechanism; 314, pulley connecting piece; 315 , shell plate; 316, winding disk; 317, worm gear transmission mechanism; 318, motor; 319, anti-slip ring; 321, fixed shell; 322, hook; 323, pulley main part; 324, U-shaped plate; 325, turntable; 326, double-headed telescopic rod; 327, cylinder shell; 328, turn block; 329, threaded column one; 3210, bottom column; 3211, top column; 3212, threaded column two; 3213, threaded cylinder. DETAILED DESCRIPTION

[0018] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0019] Reference Figure 1 and Figure 2The present invention provides a hydraulic jacking light-weight arm lifting device, comprising a tower holding column 1 and a supporting mechanism 3 for supporting the tower holding column 1, an external wire pulling mechanism 2 is arranged on the top of the tower holding column 1, the supporting mechanism 3 is connected to the main material of the iron tower through a plurality of tower body connecting pieces 4, a hydraulic mechanism 5 is fixedly connected to the bottom end of the tower holding column 1, the hydraulic mechanism 5 comprises an outer protective steel frame 51, and four hydraulic cylinders 52 are fixedly installed inside the outer protective steel frame 51; the supporting mechanism 3 is composed of four load-bearing steel wires 31 and four suspension pulleys 32, the suspension pulleys 32 are connected to the tower body connecting piece 4, one end of the four load-bearing steel wires 31 is respectively fixed at the four corners of the bottom end of the outer protective steel frame 51, the other ends of the four load-bearing steel wires 31 respectively bypass the four suspension pulleys 32 and dock with the output ends of the four hydraulic cylinders 52, the output of the hydraulic cylinder 52 is used to expand the distance between the two ends of the load-bearing steel wires 31, shorten the distance between the bottom end of the outer protective steel frame 51 and the tower body connecting piece 4 to lift the tower holding column 1.

[0020] When the arm is lifted, two hydraulic cylinders 52 are used to transport the two diagonal load-bearing wires 31, so that the bottom ends of the two diagonal load-bearing wires 31 are subjected to the downward pulling force of the hydraulic cylinders 52. At this time, the two diagonal load-bearing wires 31 slide on the suspension pulley 32, and the distance between the two ends of the load-bearing wires 31 increases, so that the tower holding column 1 is controlled to be lifted (such as the attached Figure 2 The load-bearing steel wire 31 shown in the figure is divided into section a and section b with the suspension pulley 32 as the node. When the load-bearing steel wire 31 is pulled and slides, the distance from one end of the load-bearing steel wire 31 used for connecting the outer steel frame 51 to the tower body connecting piece 4 is shortened, that is, section a is shortened, and the distance from one end of the load-bearing steel wire 31 used for docking the hydraulic cylinder 52 to the tower body connecting piece 4 is enlarged, that is, section b is enlarged. By shortening section a and keeping the position of the tower body connecting piece 4 unchanged, the lifting effect of the outer steel frame 51 can be controlled, thereby controlling the tower column 1 to be lifted). As the position of the outer steel frame 51 is raised, The two load-bearing steel wires 31 are in a relaxed state. The suspension pulleys 32 connected to the two load-bearing steel wires 31 are disconnected from the tower body connection piece 4 and connected to the tower body connection piece 4 at a higher position, so that the load effect of the two load-bearing steel wires 31 used to lift the outer protective steel frame 51 is transferred to the two load-bearing steel wires 31 used to suspend at a higher position. Then, the two output hydraulic cylinders 52 are retracted, and the two suspension pulleys 32 at a lower position are disconnected from the tower body connection piece 4, and the load is transferred to the connection with the tower body connection piece 4 at a higher position to share the force, thereby completing the lifting of the pole; In addition, since the single load-bearing steel wire 31 is folded in half to form a two-point connection with the hydraulic mechanism 5, the load-bearing capacity of the single load-bearing steel wire 31 can be improved, and the tension on the single connecting part between the supporting mechanism 3 and the hydraulic mechanism 5 can be reduced, so that the stress on each component is reduced and the service life is increased.

[0021] Reference Figure 3 , 4The output end of the hydraulic cylinder 52 is fixedly connected to a supporting pulley 54 , and the center position of the bottom of the outer protective steel frame 51 is fixedly connected to a center column 53 . The load-bearing steel wire 31 passes around the bottom of the supporting pulley 54 and is connected to the center column 53 .

[0022] When the hydraulic cylinder 52 outputs and pulls the load-bearing steel wire 31 downward, the load-bearing steel wire 31 will also apply a lateral pulling force to the hydraulic cylinder 52, which may cause the output shaft of the hydraulic cylinder 52 to bend or break. To avoid this situation, the load-bearing steel wire 31 can form an angle at the bottom of the hydraulic cylinder 52 through the cooperation of the center column 53 and the support pulley 54, and the output end of the hydraulic cylinder 52 is pushed downward toward the angle to achieve the effect of pulling the load-bearing steel wire 31 downward. In this way, both sides of the bottom end of the hydraulic cylinder 52 can be subjected to tension, thereby balancing the lateral tension and avoiding damage to the output shaft of the hydraulic cylinder 52.

[0023] Reference Figure 3 , 4 A U-shaped anti-slip frame 55 is fixedly connected to the bottom of the support pulley 54 , a support frame 56 is fixedly connected to the bottom of the hydraulic cylinder 52 , and the load-bearing steel wire 31 passes through the inside of the U-shaped anti-slip frame 55 .

[0024] When the load-bearing steel wire 31 is in a relaxed state, it is easy to fall off from the bottom of the supporting pulley 54. The U-shaped anti-falling frame 55 can be provided to avoid the load-bearing steel wire 31 and the supporting pulley 54 from falling off. In addition, the holding rod will be supported on the ground in the initial state of the resistance tower. The supporting frame 56 can be provided to cope with this situation, and the hydraulic cylinder 52 is placed in contact with the ground to cause wear.

[0025] Reference Figure 5 A truncation is provided on the load-bearing steel wire 31, and a telescopic steel wire group 311 is fixedly connected to the truncation. The telescopic steel wire group 311 is used to adjust the length of the load-bearing steel wire 31 and to limit the section of the load-bearing steel wire 31 that reaches the connection point of the outer protective steel frame 51 with the suspension pulley 32 as the node to always have an inclination.

[0026] Since the suspension pulley 32 and the tower body connecting piece 4 are disconnected and connected to the higher tower body connecting piece 4 during the lifting process of the holding rod, there may be a length error in the load-bearing wire 31 during this process, resulting in the inability to smoothly connect the suspension pulley 32 and the tower body connecting piece 4. The telescopic function of the telescopic wire group 311 can achieve the effect of controlling the total length of the load-bearing wire 31, thereby adjusting the length of the load-bearing wire 31, thereby improving the installation position tolerance of the tower body connecting piece 4 and making the device more convenient to use. By using the suspension pulley 32 as the node for the load-bearing wire 31 to reach the node of the connection point of the outer protective steel frame 51 The segment a is always restricted to an inclined state (i.e., the load-bearing steel wire segment 31a is always kept inclined). When the segment a is tending to be horizontal, this will cause the externally assembled iron tower to be subjected to a large lateral pulling force when the holding rod is used for hoisting objects, which can easily cause the iron tower to deform. Through the structural setting of the telescopic steel wire group 311, the telescopic steel wire group 311 can be prevented from sliding toward the output end of the hydraulic cylinder 52 through the suspension pulley 32, thereby limiting the minimum length of the load-bearing steel wire 31a segment. When the minimum length of the segment a is greater than the distance from the suspension pulley 32 to the axis of the outer protective steel frame 51 in the horizontal direction, it can ensure that the load-bearing steel wire 31a segment is always kept in an inclined state.

[0027] Reference Figure 6 The telescopic wire group 311 includes a winding mechanism 313 and a pulley connector 314. One side of the winding mechanism 313 is fixedly connected to the main wire 312 through a connecting block, and the other end of the main wire 312 passes around the pulley connector 314 and connects with the winding end of the winding mechanism 313.

[0028] The distance from the winding mechanism 313 to the pulley connector 314 is the length of the telescopic steel wire group 311. When the winding mechanism 313 is running to wind up the main wire 312, the pulley connector 314 can be pulled to reduce the distance from the winding mechanism 313 to the pulley connector 314. Similarly, controlling the winding mechanism 313 to unwind increases the distance from the winding mechanism 313 to the pulley connector 314, thereby achieving the length adjustment effect of the telescopic steel wire group 311.

[0029] Reference Figure 7 The winding mechanism 313 includes a shell plate 315, and a winding disk 316 is movably sleeved on one side of the shell plate 315. A worm gear transmission mechanism 317 is arranged inside the shell plate 315. A motor 318 is fixedly installed on the top of the shell plate 315. The output end of the motor 318 is connected to the winding disk 316 through the worm gear transmission mechanism 317. An anti-slip ring 319 is arranged on one side of the shell plate 315, and the main wire 312 passes through the anti-slip ring 319 and is wound on the winding disk 316.

[0030] The motor 318 outputs and controls the winding drum 316 to rotate, thereby achieving the winding effect of the winding mechanism 313 on the main wire 312. By setting up a worm gear transmission mechanism 317 for transmission, it can avoid the winding drum 316 from passively unwinding when the telescopic wire group 311 is subjected to tension, thereby improving safety performance.

[0031] Reference Figure 8 The hanging pulley 32 includes a fixed shell 321, a pulley groove c and an accessory groove d are arranged inside the fixed shell 321, a pulley main part 323 is movably sleeved in the pulley groove c, a U-shaped plate 324 is arranged in the accessory groove, a turntable 325 is movably sleeved on the inner wall of the U-shaped plate 324, a curved protrusion is arranged on the side wall of the turntable 325, and teeth are arranged on the side wall of the curved protrusion, the turntable 325 is transmission connected to the inner wall of the U-shaped plate 324 through a torsion spring, and a hook 322 is fixedly connected to the top of the fixed shell 321.

[0032] When the load-bearing steel wire 31 is docked with the suspension pulley 32, the load-bearing steel wire 31 is bypassed by the side wall of the pulley main component 323. When the load-bearing steel wire 31 slides in the output direction of the hydraulic cylinder 52, the load-bearing steel wire 31 can apply a force to the arc-surface protrusion of the rotating disk 325, so that the rotating disk 325 rotates. At this time, the arc-surface protrusion moves away from the side wall of the pulley main component 323, so that the load-bearing steel wire 31 can slide normally. Since the rotating disk 325 is acted upon by the torsion spring, it can ensure that the arc-surface protrusion of the side wall of the rotating disk 325 When the load-bearing steel wire 31 contacts the load-bearing steel wire 31 and slides in the opposite direction, friction is generated under the action of the teeth of the arc-surface protrusion, and the turntable 325 rotates in the opposite direction to make the arc-surface protrusion approach the pulley main part 323 to press the load-bearing steel wire 31, thereby limiting the load-bearing steel wire 31 to only slide in one direction along the pulley main part 323. Therefore, when the connection between the hydraulic cylinder 52 and the load-bearing steel wire 31 is damaged and disconnected, the suspension pulley 32 can provide emergency protection measures to prevent the boom from falling directly.

[0033] Reference Figure 8 A vertical slide groove is provided in the accessory groove d inside the fixed shell 321, and the U-shaped plate 324 is slidably sleeved in the vertical slide groove. A through hole that penetrates into the accessory groove d is opened at the top of the fixed shell 321, and a double-headed telescopic rod 326 is fixedly connected in the through hole. The bottom end of the double-headed telescopic rod 326 is fixedly connected to the top of the double-headed telescopic rod 326, and the top end is fitted with the end of the double-headed telescopic rod 326. The double-headed telescopic rod 326 is used to synchronously control the opening and closing of the hook 322 and the lifting and lowering of the U-shaped plate 324.

[0034] After the suspension pulley 32 is disconnected from the tower body connecting piece 4 and connected to a higher tower body connecting piece 4, the suspension pulley 32 needs to release the one-way locking effect on the load-bearing steel wire 31. By setting a double-headed telescopic rod 326 to control the lifting of the U-shaped plate 324, the turntable 325 can be moved away from the pulley main part 323 to achieve the unlocking effect. In addition, the double-headed telescopic rod 326 is used to close the opening of the hook 322 to prevent the suspension pulley 32 from falling off the tower body connecting piece 4. During dismantling, the double-headed telescopic rod 326 synchronously controls the opening of the hook 322 and the lifting and lowering of the U-shaped plate 324, thereby saving operating steps and improving work efficiency.

[0035] Reference Fig. 9 The double-head telescopic rod 326 includes a cylinder shell 327, which is fixedly connected to the inner wall of the through hole of the fixed shell 321, and a rotary block 328 is rotatably sleeved inside the cylinder shell 327. A threaded column 329 is fixedly connected to the bottom of the rotary block 328, and a bottom column 3210 is threadedly sleeved on the side wall of the threaded column 329. The bottom end of the bottom column 3210 is fixedly connected to the U-shaped plate 324, and a top column 3211 is fixedly connected to the top of the rotary block 328. A threaded column 3212 is slidably sleeved on the side wall of the top column 3211. A threaded cylinder 3213 is fixedly connected to the top of the cylinder shell 327, and the threaded column 3212 is threadedly sleeved on the inner wall of the threaded cylinder 3213.

[0036] By rotating the threaded column 2 3212 and engaging the threaded barrel 3213, the threaded column 2 3212 can be lowered so that its top end is away from the end of the hook 322, thereby achieving the effect of opening the hook 322. At the same time, when the threaded column 2 3212 rotates, under the connection effect of the top column 3211, the rotary block 328, and the threaded column 1 329, the threaded column 1 329 can be synchronously rotated, so that the threaded column 1 329 and the bottom column 3210 are threadably engaged, thereby achieving the effect of controlling the lifting and lowering of the bottom column 3210, thereby synchronously controlling the lifting and lowering of the U-shaped plate 324, and during the process, the threaded column 2 3212 descends and the bottom column 3210 rises.

[0037] Reference Fig. 9 The bottom column 3210 and the top column 3211 are both polygonal columns, the inner shape and size of the cylinder shell 327 match the bottom column 3210, and the inner shape and size of the threaded column 3212 match the top column 3211. Through the shape setting of the bottom column 3210 and the top column 3211, the bottom column 3210 can be prevented from rotating with the threaded column 1 329, and the top column 3211 can be driven to rotate by the threaded column 2 3212.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. The present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hydraulic jacking light-weight pole lifting device, comprising a tower holding column (1) and a supporting mechanism (3) for supporting the tower holding column (1), wherein an external pull wire mechanism (2) is arranged on the top of the tower holding column (1), and the supporting mechanism (3) is connected to the main material of the iron tower through a plurality of tower body connecting pieces (4), characterized in that: The bottom end of the tower-holding column (1) is fixedly connected to a hydraulic mechanism (5), wherein the hydraulic mechanism (5) comprises an outer protective steel frame (51), and four hydraulic cylinders (52) are fixedly installed inside the outer protective steel frame (51); The supporting mechanism (3) is composed of four load-bearing steel wires (31) and four suspension pulleys (32). The suspension pulleys (32) are connected to the tower body connecting piece (4). One end of the four load-bearing steel wires (31) is respectively fixed to the four corners of the bottom end of the outer protective steel frame (51). The other ends of the four load-bearing steel wires (31) respectively pass through the four suspension pulleys (32) and dock with the output ends of four hydraulic cylinders (52). The output of the hydraulic cylinder (52) is used to expand the distance between the two ends of the load-bearing steel wires (31), shorten the distance between the bottom end of the outer protective steel frame (51) and the tower body connecting piece (4), and lift the tower holding column (1).

2. A hydraulic jacking light-duty pole lifting device according to claim 1, characterized in that: The output end of the hydraulic cylinder (52) is fixedly connected to a support pulley (54), the center position of the bottom of the outer protective steel frame (51) is fixedly connected to a center column (53), and the load-bearing steel wire (31) passes around the bottom of the support pulley (54) and is connected to the center column (53).

3. A hydraulic jacking light-duty pole lifting device according to claim 2, characterized in that: The bottom of the support pulley (54) is fixedly connected to a U-shaped anti-slip frame (55), the bottom of the hydraulic cylinder (52) is fixedly connected to a support frame (56), and the load-bearing steel wire (31) passes through the inside of the U-shaped anti-slip frame (55).

4. A hydraulic jacking light-duty pole lifting device according to claim 1, characterized in that: The load-bearing steel wire (31) is provided with a cut-off opening, to which a telescopic steel wire group (311) is fixedly connected, the telescopic steel wire group (311) being used to adjust the length of the load-bearing steel wire (31) and to limit the section of the load-bearing steel wire (31) that reaches the connection point of the outer protective steel frame (51) with the suspension pulley (32) as a node to always have an inclination.

5. A hydraulic jacking light-weight pole lifting device according to claim 4, characterized in that: The telescopic steel wire group (311) comprises a winding mechanism (313) and a pulley connector (314); one side of the winding mechanism (313) is fixedly connected to a main wire (312) via a connecting block; the other end of the main wire (312) passes around the pulley connector (314) and docks with the winding end of the winding mechanism (313).

6. A hydraulic jacking light-weight pole lifting device according to claim 5, characterized in that: The winding mechanism (313) comprises a shell plate (315), a winding disk (316) is movably sleeved on one side of the shell plate (315), a worm gear transmission mechanism (317) is arranged inside the shell plate (315), a motor (318) is fixedly mounted on the top of the shell plate (315), an output end of the motor (318) is transmission-connected to the winding disk (316) via the worm gear transmission mechanism (317), an anti-slip ring (319) is arranged on one side of the shell plate (315), and the main body wire (312) passes through the anti-slip ring (319) and is wound on the winding disk (316).

7. The hydraulic jacking light-duty pole lifting device according to claim 1 is characterized in that: The suspension pulley (32) comprises a fixed shell (321), a pulley groove c and an accessory groove d are arranged inside the fixed shell (321), a pulley main part (323) is movably sleeved in the pulley groove c, a U-shaped plate (324) is arranged in the accessory groove, a rotating disk (325) is movably sleeved on the inner wall of the U-shaped plate (324), a curved surface protrusion is arranged on the side wall of the rotating disk (325), and teeth are arranged on the side wall of the curved surface protrusion, the rotating disk (325) is transmission-connected to the inner wall of the U-shaped plate (324) via a torsion spring, and a hook (322) is fixedly connected to the top of the fixed shell (321).

8. The hydraulic jacking light-duty pole lifting device according to claim 7 is characterized in that: A vertical slide groove is provided in the accessory groove d inside the fixed shell (321), and the U-shaped plate (324) is slidably sleeved in the vertical slide groove. A through hole penetrating into the accessory groove d is provided at the top of the fixed shell (321), and a double-headed telescopic rod (326) is fixedly connected in the through hole. The bottom end of the double-headed telescopic rod (326) is fixedly connected to the top of the double-headed telescopic rod (326), and the top end is fitted with the end of the double-headed telescopic rod (326). The double-headed telescopic rod (326) is used to synchronously control the opening and closing of the hook (322) and the lifting and lowering of the U-shaped plate (324).

9. The hydraulic jacking light-weight pole lifting device according to claim 8, characterized in that: The double-head telescopic rod (326) comprises a cylinder shell (327), the cylinder shell (327) being fixedly connected to the inner wall of the through hole of the fixed shell (321), a rotary block (328) being rotatably sleeved inside the cylinder shell (327), a threaded column 1 (329) being fixedly connected to the bottom of the rotary block (328), a bottom column (3210) being threadedly sleeved on the side wall of the threaded column 1 (329), a bottom end of the bottom column (3210) being fixedly connected to the U-shaped plate (324), a top column (3211) being fixedly connected to the top of the rotary block (328), a threaded column 2 (3212) being slidably sleeved on the side wall of the top column (3211), a threaded cylinder (3213) being fixedly connected to the top of the cylinder shell (327), and the threaded column 2 (3212) being threadedly sleeved on the inner wall of the threaded cylinder (3213).

10. A hydraulic jacking light-duty pole lifting device according to claim 9, characterized in that: The bottom column (3210) and the top column (3211) are both polygonal columns. The inner cavity shape and size of the cylindrical shell (327) match those of the bottom column (3210), and the inner cavity shape and size of the second threaded column (3212) match those of the top column (3211).

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