CN115432614A - A construction site intelligent lifting system - Google Patents

Abstract

The invention relates to the field of building construction, in particular to an intelligent hoisting system for a building site, which comprises a bottom plate, wherein two sides of the upper end of the bottom plate are fixedly connected with an installation mechanism, the upper end of the middle part of the bottom plate is fixedly connected with a hoisting mechanism, one side of the hoisting mechanism is fixedly connected with a driving mechanism, the installation mechanism at the upper end of the driving mechanism is fixedly connected with a power supply mechanism, one side of the hoisting mechanism, which is far away from the bottom plate, is fixedly connected with a hooking mechanism, when the intelligent hoisting system is used, a round gear, a winding rod and a winding wheel are conveniently and rapidly driven under the action of the driving rod and the gear rod to rotate the winding traction rope through the arrangement of a driving motor, a first transmission wheel and a second transmission wheel, and simultaneously, the gear rod synchronously drives a second bevel gear through the connecting rod and the first bevel gear when rotating, so that a threaded sleeve is conveniently driven to rotate while the traction rope is wound, the height of the traction rope is adjusted while the object is hoisted, the hoisting efficiency is increased, and the energy consumption is reduced.

Description

A construction site intelligent lifting system

technical field

The invention relates to the field of building construction, in particular to an intelligent lifting system for a construction site.

Background technique

A construction site is a place where construction projects are being developed and civil engineering is being carried out. Its scope is often closed by hoardings, barbed wire or walls, restricting the entry and exit of personnel, materials, machinery and vehicles, guarded by property management administrators, and access may be required. Register your identity, wear a helmet, etc. At the same time, materials need to be transported by lifting devices during infrastructure construction on construction sites.

The lifting devices on the construction site are basically fixedly installed on the roof of the building. They are started and used by an external power supply. They are usually controlled manually. When in use, special personnel must be arranged to take care of the control. However, in order to avoid the waste of manpower, thus It requires people to run back and forth, increasing labor intensity, and it is inconvenient to use intelligent control. At the same time, the lifting height is fixed and cannot be adjusted during lifting, so it is inconvenient to increase the height during lifting to further increase the lifting efficiency, and the lifting device on the construction site It is inconvenient to use during a power outage and reduces subsequent work efficiency.

Contents of the invention

Aiming at the problems in the prior art, the invention provides an intelligent lifting system for a construction site.

The technical solution adopted by the present invention to solve the technical problem is: an intelligent lifting system for a construction site, including a base plate, an installation mechanism is fixedly connected to both sides of the upper end of the base plate, and a lifting mechanism is fixedly connected to the upper end of the middle part of the base plate A driving mechanism is fixedly connected to one side of the lifting mechanism, a power supply mechanism is fixedly connected to the installation mechanism at the upper end of the driving mechanism, a hooking mechanism is fixedly connected to the side of the lifting mechanism away from the bottom plate, and the There is a limit mechanism fixedly connected on both sides of the bottom plate;

The installation mechanism includes a first vertical plate, the first vertical plate is fixedly connected to the upper side of the bottom plate, and a mounting hole with a bearing is opened at a position close to the lower end of the first vertical plate, away from the The bottom plate on one side of the first vertical plate is fixedly connected with a second vertical plate, and the side of the second vertical plate close to the first vertical plate is provided with a first chute, and the upper end of the second vertical plate is rotatably connected with a a first pulley;

The lifting mechanism includes two side plates, which are symmetrically arranged and fixedly connected to the center of the upper surface of the bottom plate, and the inner side walls of the two side plates near the upper end are rotatably connected to a winding rod through bearings , one side of the winding rod is fixedly sleeved with a winding wheel, and the other side of the winding rod is fixedly sleeved with a circular gear, and the lower end of the circular gear is meshed with a gear rod, and the gear rod is far away from One side of the first vertical plate is fixedly connected with a connecting rod, and the other side of the connecting rod is fixedly connected with a first bevel gear, and the upper end of the bottom plate located on the side of the first bevel gear is rotatably connected with a A threaded sleeve, the position of the threaded sleeve near the lower end is fixedly sleeved with a second bevel gear, the second bevel gear is meshed and connected to the first bevel gear, and the internal thread of the upper end of the threaded sleeve A lifting rod is connected, and a lifting plate is fixedly connected to the upper end of the lifting rod. A second pulley is connected in rotation, and a traction rope is actively wound up on the winding wheel, and one side of the traction rope passes through the second pulley and the first pulley and extends to the outside of the second riser.

Specifically, the drive mechanism includes a drive rod, the drive rod is rotatably connected in the mounting hole through a bearing, the side of the drive rod close to the gear rod is fixedly connected to the gear rod, and the other side of the drive rod A first transmission wheel is fixedly connected, and a belt is connected to the upper end of the first transmission wheel, and a second transmission wheel is connected to the upper end of the belt, and the second transmission wheel is fixed on the side close to the first riser. A drive motor is connected, and the drive motor is fixedly connected to the first riser.

Specifically, the power supply mechanism includes a horizontal plate, the horizontal plate is fixedly connected to the first vertical plate, a second chute is opened on one side of the upper end of the horizontal plate, and a second chute is opened on the upper end of the other side of the horizontal plate. There is a third chute, a nut sleeve is fixedly connected to the center of the upper surface of the horizontal plate, and a threaded rod is connected to the inner thread of the nut sleeve, and the side of the threaded rod close to the second chute is rotatably connected by a bearing There is a push plate, the lower end of the push plate is slidably connected in the second chute, the other side of the push plate is fixedly connected with a connecting plate, and the center of the upper end of the connecting plate is connected with an electric telescopic rod through a rotating shaft. The upper surface of the side of the connecting plate far away from the push plate is connected with a fixed plate through a rotating shaft, and a fourth chute is opened on the top of the fixed plate, and a slider is slidably connected in the fourth chute. The lower end of the slider is rotatably connected to the upper end of the electric telescopic rod through a rotating shaft, and a solar panel is fixedly connected to the side of the fixed plate away from the electric telescopic rod.

Specifically, a support plate is slidably connected in the third chute, the upper end of the support plate passes through the notch of the third chute and extends to the upper end of the horizontal plate, and the upper end of the support plate is fixedly connected with a stepping motor, The output end of the stepping motor is fixedly connected to the threaded rod.

Specifically, the hooking mechanism includes a connecting ring, the connecting ring is fixedly connected to the lower end of the traction rope, a split ring is fixedly connected to the lower end of the connecting ring, and a slot is opened at the lower end of the split ring. The opening of the upper end of the split ring is connected with a limit rod through the rotation of the rotating shaft, the lower end of the limit rod is slidably connected in the slot, and the lower end of the split ring is provided with several ring grooves.

Specifically, the limiting mechanism includes several square plates with threaded holes through them. The several square plates are symmetrically arranged and fixedly connected to the outer sidewalls on both sides of the bottom plate. An insertion rod, and a turntable is fixedly connected to the upper ends of several insertion rods.

Specifically, four rectangular self-locking universal wheels are fixedly connected to both sides of the lower surface of the bottom plate.

Beneficial effects of the present invention:

(1) An intelligent lifting system for a construction site and its usage method according to the present invention, by setting the driving motor, the first transmission wheel and the second transmission wheel, it is convenient to quickly drive the circular gear and the retracting wheel under the action of the drive rod and the gear rod. The winding rod and the rewinding wheel rotate to rewind the traction rope. At the same time, when the gear rod rotates, the second bevel gear is synchronously driven through the connecting rod and the first bevel gear, which is convenient to drive the threaded sleeve to rotate while rewinding the traction rope. When lifting objects, adjust the height of the traction rope to increase lifting efficiency and reduce energy consumption.

(2) An intelligent lifting system for a construction site and its usage method according to the present invention, it is convenient to store electricity for the lifting device by setting a solar electric hammer plate, so that it can still work when there is a power failure. It is convenient to adjust the position of the solar panel when the threaded rod rotates, and at the same time adjust the angle of the solar panel through the sliding action of the fourth chute and the slider to cooperate with the electric telescopic rod, so as to facilitate better power storage.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic diagram of the overall structure of a construction site intelligent lifting system provided by the present invention;

Fig. 2 is an enlarged structural schematic diagram of part A in Fig. 1 of a construction site intelligent lifting system provided by the present invention;

Fig. 3 is a structural schematic diagram of a power supply mechanism in a construction site intelligent lifting system provided by the present invention;

Fig. 4 is a structural schematic diagram of a hooking mechanism in a construction site intelligent lifting system provided by the present invention;

Fig. 5 is a top view sectional structural schematic diagram of a rewinding rod and a rewinding wheel of a construction site intelligent lifting system provided by the present invention;

Fig. 6 is a schematic bottom view of the structure of the first bevel gear, the second bevel gear and the threaded sleeve of a construction site intelligent lifting system provided by the present invention;

Fig. 7 is a three-dimensional structural schematic diagram of a square block, an insertion rod and a turntable of an intelligent lifting system for a construction site provided by the present invention.

In the figure: 1, bottom plate; 2, installation mechanism; 21, first vertical plate; 22, installation hole; 23, second vertical plate; 24, first chute; 25, first pulley; 3, lifting mechanism; 31 , side plate; 32, winding rod; 33, winding wheel; 34, circular gear; 35, gear rod; 36, connecting rod; 37, first bevel gear; 38, threaded sleeve; 39, second cone Shaped gear; 310, lifting lever; 311, lifting plate; 312, vertical bar; 313, the second pulley; 314, traction rope; 4, driving mechanism; 41, driving rod; 42, the first drive wheel; 43, belt; 44, the second transmission wheel; 45, the driving motor; 5, the power supply mechanism; 51, the horizontal plate; 52, the second chute; 53, the nut sleeve; 54, the threaded rod; 55, the push plate; 56, the connecting plate; 57 , electric telescopic rod; 58, fixed plate; 59, fourth chute; 510, slider; 511, solar panel; 512, third chute; 513, support plate; 514, stepping motor; 6, hook Mechanism; 61, connecting ring; 62, split ring; 63, card slot; 64, limit rod; 65, ring groove; 7, limit mechanism; 71, square plate; 72, inserting rod; 73, turntable; 8, Self-locking universal wheels.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

As shown in Figures 1-7, an intelligent lifting system for a construction site of the present invention includes a base plate 1, a mounting mechanism 2 is fixedly connected to both sides of the upper end of the base plate 1, and a lifting mechanism 3 is fixedly connected to the upper end of the middle of the base plate 1 One side of the lifting mechanism 3 is fixedly connected with a driving mechanism 4, the installation mechanism 2 located at the upper end of the driving mechanism 4 is fixedly connected with a power supply mechanism 5, and the side of the lifting mechanism 3 far away from the bottom plate 1 is fixedly connected with a hooking mechanism 6, and A limit mechanism 7 is fixedly connected to both sides of the bottom plate 1;

The installation mechanism 2 includes a first vertical plate 21, the first vertical plate 21 is fixedly connected to one side of the upper surface of the bottom plate 1, and a mounting hole 22 with a bearing is opened through the position near the lower end of the first vertical plate 21, far away from the first vertical plate 21. A second riser 23 is fixedly connected to the bottom plate 1 on one side of the riser 21, and a first sliding groove 24 is opened on the side of the second riser 23 close to the first riser 21, and the upper end of the second riser 23 is rotatably connected to There is a first pulley 25;

The hoisting mechanism 3 includes two side plates 31, which are symmetrically arranged and fixedly connected to the center of the upper surface of the bottom plate 1, and the inner side walls of the two side plates 31 near the upper end are rotatably connected to a winding rod 32 through bearings. One side of the winding rod 32 is fixedly sleeved with a winding wheel 33, the other side of the winding rod 32 is fixedly sleeved with a circular gear 34, and the lower end of the circular gear 34 is meshed with a gear rod 35, and the gear rod 35 is far away from the first One side of a riser 21 is fixedly connected with a connecting rod 36, and the other side of the connecting rod 36 is fixedly connected with a first bevel gear 37, and the upper end of the bottom plate 1 located on the side of the first bevel gear 37 is rotatably connected There is a threaded sleeve 38, and the position near the lower end of the threaded sleeve 38 is fixedly sleeved with a second bevel gear 39, the second bevel gear 39 is meshed and connected to the first bevel gear 37, and the inside of the upper end of the threaded sleeve 38 is A lifting rod 310 is threadedly connected, and a lifting plate 311 is fixedly connected to the upper end of the lifting rod 310. One side of the lifting plate 311 is slidingly connected in the first chute 24, and a vertical rod 312 is fixedly connected to the upper end of the lifting plate 311. The vertical rod 312 The upper end is rotatably connected with a second pulley 313 , and the winding wheel 33 is movably rewound with a traction rope 314 , one side of the traction rope 314 passes through the second pulley 313 and the first pulley 25 and extends to the outside of the second riser 23 .

Specifically, the driving mechanism 4 includes a driving rod 41, the driving rod 41 is rotatably connected in the mounting hole 22 through a bearing, the side of the driving rod 41 close to the gear rod 35 is fixedly connected to the gear rod 35, and the other side of the driving rod 41 A first transmission wheel 42 is fixedly connected, and a belt 43 is connected to the upper end of the first transmission wheel 42, and a second transmission wheel 44 is connected to the upper end of the belt 43, and the second transmission wheel 44 is close to the side of the first vertical plate 21. A driving motor 45 is fixedly connected, and the driving motor 45 is fixedly connected on the first vertical plate 21, which is conducive to driving the driving rod 41 to rotate under the action of the second transmission wheel 44, the first transmission wheel 42 and the belt 43 through the driving motor 45. , so that it is convenient to drive the lifting mechanism 3.

Specifically, the power supply mechanism 5 includes a horizontal plate 51 fixedly connected to the first vertical plate 21, a second sliding slot 52 is provided on one side of the upper end of the horizontal plate 51, and a A third chute 512, the center of the upper surface of the horizontal plate 51 is fixedly connected with a nut sleeve 53, the nut sleeve 53 is internally threaded with a threaded rod 54, and the side of the threaded rod 54 close to the second chute 52 is rotatably connected by a bearing There is a push plate 55, the lower end of the push plate 55 is slidably connected in the second chute 52, the other side of the push plate 55 is fixedly connected with a connecting plate 56, and the center of the upper end of the connecting plate 56 is connected with an electric telescopic rod 57 through a rotating shaft. The upper surface of the connecting plate 56 away from the side of the push plate 55 is connected with a fixed plate 58 through the rotating shaft, the upper end of the fixed plate 58 is provided with a fourth chute 59, and a slider 510 is slidably connected in the fourth chute 59, The lower end of the slide block 510 is connected to the upper end of the electric telescopic rod 57 through the rotation of the rotating shaft, and the side of the fixed plate 58 away from the electric telescopic rod 57 is fixedly connected with a solar panel 511, which is conducive to convenient adjustment and push by the stepping motor 514 and the threaded rod 54. The positions of the board 55 and the solar panel 511 are adjusted in angle under the action of the electric telescopic rod 57 , the slide block 510 and the fourth chute 59 at the same time.

Specifically, a support plate 513 is slidably connected in the third chute 512, the upper end of the support plate 513 passes through the notch of the third chute 512 and extends to the upper end of the horizontal plate 51, and the upper end of the support plate 513 is fixedly connected with a stepper motor 514 , the output end of the stepping motor 514 is fixedly connected to the threaded rod 54 , which facilitates the stepping motor 514 and the support plate 513 to slide inside the third chute 512 , and is convenient for driving the threaded rod 54 stably.

Specifically, the hooking mechanism 6 includes a connecting ring 61, the connecting ring 61 is fixedly connected to the lower end of the traction rope 314, the lower end of the connecting ring 61 is fixedly connected with a split ring 62, and the lower end of the split ring 62 is opened with a card slot 63, and the split ring The opening of the upper end of 62 is connected with a limit rod 64 through the rotation of the rotating shaft, and the lower end of the limit rod 64 is slidably connected in the card groove 63. Several ring grooves 65 are provided inside the lower end of the split ring 62, which is beneficial to cooperate with the limit rod through the split ring 62. 64 is convenient to hook up the rope, so that the rope can be limited and lifted quickly under the action of the ring groove 65.

Specifically, the limit mechanism 7 includes several square plates 71 with threaded holes through them. The several square plates 71 are symmetrically arranged and fixedly connected to the outer side walls of the bottom plate 1, and each of the several square plates 71 is threaded with a plug. Rod 72, several insertion rods 72 upper ends are all fixedly connected with a rotating disk 73, help to drive insertion rod 72 to rotate by rotating disk 73, be convenient to be inserted on the ground and limit the base plate 1.

Specifically, four self-locking universal wheels 8 arranged in a rectangular shape are fixedly connected to both sides of the lower surface of the bottom plate 1, which is beneficial to facilitate the movement of the equipment through the bottom plate 1 through the self-locking universal wheels 8, thereby facilitating transportation.

When in use, the bottom plate 1 and the equipment are moved to a suitable position through four self-locking universal wheels 8, and then several turntables 73 are rotated, and several turntables 73 drive several insertion rods 72 to rotate. 71 drives the insertion rod 72 to descend to limit the position of the bottom plate 1. The solar panel 511 converts electric energy through solar energy and stores it in the battery it carries, and then starts the stepping motor 514 through an external sensor, and the output end of the stepping motor 514 drives the threaded rod 54 Rotate, push the push plate 55 to slide inside the second chute 52 through the action of the nut sleeve 53, and when the threaded rod 54 rotates and moves, the support plate 513 is driven by the stepper motor 514 to slide inside the third chute 512, and at the same time, the The electric power starts the electric telescopic rod 57, and the electric telescopic rod 57 passes through the fourth chute 59 and the slide block 510 under the action of sliding limit, thereby adjusting the angle of the solar panel 511 under the action of several rotating shafts to absorb solar energy well. , when it is necessary to lift, slide the limit rod 64 from the inside of the card slot 63 through the rotating shaft, and then offset the ropes that bind the object with several ring slots 65. At this time, the drive motor 45 is started under the action of the battery power of the solar panel 511 , the output end of the drive motor 45 drives the second transmission wheel 44, the second transmission wheel 44 drives the first transmission wheel 42 through the belt 43, the first transmission wheel 42 synchronously drives the drive rod 41 to rotate through the mounting hole 22, and the drive rod 41 drives the gear lever 35 and the connecting rod 36 rotate, and the upper end of the gear rod 35 meshes to drive the circular gear 34 to rotate, and the circular gear 34 drives the winding rod 32 and the winding wheel 33 to rotate, and the winding wheel 33 will pass through the first pulley 25 and the second pulley 313. Stable rewinding of the traction rope 314, while the connecting rod 36 drives the first bevel gear 37 to rotate, the engagement of the first bevel gear 37 drives the second bevel gear 39 to rotate, and the second bevel gear 39 drives the threaded sleeve 38 to rotate through the bearing At this time, the lifting rod 310 is driven up by the sliding limit action of the first chute 24 and the lifting plate 311, and the lifting rod 310 adjusts the height of the second pulley 313 through the lifting plate 311 and the vertical rod 312, increasing the traction rope 314 and opening The rising height of the ring 62 increases the use efficiency.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also There are various changes and improvements, and these changes and improvements all fall within the scope of protection of the present invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. An intelligent lifting system for a construction site, characterized in that it includes a base plate (1), and an installation mechanism (2) is fixedly connected to both sides of the upper end of the base plate (1), and the upper end of the middle part of the base plate (1) is fixed A lifting mechanism (3) is connected, a driving mechanism (4) is fixedly connected to one side of the lifting mechanism (3), and a power supply mechanism (2) located at the upper end of the driving mechanism (4) is fixedly connected to 5), the lifting mechanism (3) is fixedly connected with a hooking mechanism (6) on the side away from the base plate (1), and a limit mechanism (7) is fixedly connected with both sides of the base plate (1); The installation mechanism (2) includes a first vertical plate (21), the first vertical plate (21) is fixedly connected to the upper surface side of the bottom plate (1), and the first vertical plate (21) is close to the lower end A mounting hole (22) with a bearing is opened through the position, and the bottom plate (1) on the side away from the first vertical plate (21) is fixedly connected with a second vertical plate (23), and the second vertical plate (23) The side of the plate (23) close to the first vertical plate (21) is provided with a first chute (24), and the upper end of the second vertical plate (23) is rotatably connected with a first pulley (25); The lifting mechanism (3) includes two side plates (31), which are symmetrically arranged and fixedly connected to the center of the upper surface of the bottom plate (1), and the two side plates (31) A winding rod (32) is connected to the inner side wall near the upper end through bearing rotation, and a winding wheel (33) is fixedly sleeved on one side of the winding rod (32), and the other side of the winding rod (32) One side is fixedly sleeved with a circular gear (34), and the lower end of the circular gear (34) is meshed with a gear rod (35), and the side of the gear rod (35) away from the first vertical plate (21) is fixed A connecting rod (36) is connected, and a first bevel gear (37) is fixedly connected to the other side of the connecting rod (36). The bottom plate (1) on one side of the first bevel gear (37) ) is rotatably connected with a threaded sleeve (38) through a bearing, and a second bevel gear (39) is fixedly sleeved near the lower end of the threaded sleeve (38), and the second bevel gear (39) ) is meshed and connected to the first bevel gear (37), the upper end of the threaded sleeve (38) is internally threaded with a lifting rod (310), and the upper end of the lifting rod (310) is fixedly connected with a lifting plate (311 ), one side of the lifting plate (311) is slidingly connected in the first chute (24), the upper end of the lifting plate (311) is fixedly connected with a vertical rod (312), and the upper end of the vertical rod (312) rotates A second pulley (313) is connected, and the take-up wheel (33) is actively rewound with a traction rope (314), and one side of the traction rope (314) passes through the second pulley (313) and the first pulley (25) and extend to the outside of the second vertical board (23). 2. The construction site intelligent lifting system according to claim 1, characterized in that: the driving mechanism (4) includes a driving rod (41), and the driving rod (41) is rotatably connected to the mounting In the hole (22), the side of the drive rod (41) close to the gear rod (35) is fixedly connected to the gear rod (35), and the other side of the drive rod (41) is fixedly connected to a first transmission wheel (42), the upper end of the first transmission wheel (42) is connected to a belt (43), the upper end of the belt (43) is connected to a second transmission wheel (44), and the second transmission wheel (44 ) is fixedly connected to a side of the first vertical board (21) with a driving motor (45), and the driving motor (45) is fixedly connected to the first vertical board (21). 3. The construction site intelligent lifting system according to claim 1, characterized in that: the power supply mechanism (5) includes a horizontal plate (51), and the horizontal plate (51) is fixedly connected to the first vertical plate (21), a second chute (52) is opened on one side of the upper end of the horizontal plate (51), and a third chute (512) is opened on the upper end of the other side of the horizontal plate (51), so A nut sleeve (53) is fixedly connected to the center of the upper surface of the horizontal plate (51), and a threaded rod (54) is connected to the inner thread of the nut sleeve (53), and the threaded rod (54) is close to the second chute One side of (52) is rotatably connected with a push plate (55), the lower end of the push plate (55) is slidingly connected in the second chute (52), and the other side of the push plate (55) is fixedly connected There is a connecting plate (56), the center of the upper end of the connecting plate (56) is connected with an electric telescopic rod (57) through the rotating shaft, and the upper surface of the connecting plate (56) away from the push plate (55) passes through A fixed plate (58) is rotatably connected to the rotating shaft, and a fourth chute (59) is opened on the upper end of the fixed plate (58), and a slider (510) is slidably connected in the fourth chute (59), The lower end of the slider (510) is rotatably connected to the upper end of the electric telescopic rod (57) through a rotating shaft, and a solar panel (511) is fixedly connected to the side of the fixed plate (58) away from the electric telescopic rod (57). 4. The construction site intelligent lifting system according to claim 3, characterized in that: a support plate (513) is slidably connected to the third chute (512), and the upper end of the support plate (513) wears Go through the notch of the third chute (512) and extend to the upper end of the horizontal plate (51), the upper end of the support plate (513) is fixedly connected with a stepping motor (514), and the output end of the stepping motor (514) is fixed Attaches to threaded rod (54). 5. The construction site intelligent lifting system according to claim 1, characterized in that: the hooking mechanism (6) includes a connecting ring (61), and the connecting ring (61) is fixedly connected to the traction rope ( 314) lower end, the lower end of the connecting ring (61) is fixedly connected with a split ring (62), the lower end opening of the split ring (62) is provided with a card slot (63), and the upper end opening of the split ring (62) passes through A limit rod (64) is rotatably connected to the rotating shaft, and the lower end of the limit rod (64) is slidably connected in the slot (63), and several ring grooves (65) are opened inside the lower end of the split ring (62). 6. The construction site intelligent lifting system according to claim 1, characterized in that: the limit mechanism (7) includes several square plates (71) with threaded holes penetrating through them, and several square plates (71) (71) is symmetrically arranged and fixedly connected to the outer side walls of both sides of the bottom plate (1), and several square plates (71) are internally threaded with an insertion rod (72), and the upper ends of several insertion rods (72) are connected to each other. Fixed connection has a rotating disk (73). 7. The construction site intelligent lifting system according to claim 1, characterized in that four rectangular self-locking universal wheels (8) are fixedly connected to both sides of the lower surface of the bottom plate (1).

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