Steel structure profile hoisting equipment

By designing steel structural profile lifting equipment and using components such as electronically controlled support frames and sliding seats, the problem of limited use of large cranes in narrow environments is solved, and stable lifting and low-energy consumption lifting effects are achieved.

CN120517992APending Publication Date: 2025-08-22CHINA CONSTR SECOND ENG BUREAU LTD
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Patent Information

Application Number
CN202510784849.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-12
Publication Date
2025-08-22

AI Technical Summary

Technical Problem

Large cranes are limited in narrow and short construction environments, and traditional cranes consume a lot of energy, making them difficult to operate flexibly.

Method used

A steel structure profile hoisting equipment is designed, including a drag platform, a mount platform, an electric push rod, a telescopic hanger, a sliding drive group and a winch. The stability is increased through the electronically controlled support frame, the sliding seat and limit rod prevent tilting, and the gear frame and the hanging claw cooperate to achieve lifting flexibility and safety.

Benefits of technology

It realizes stable lifting in complex environments, reduces energy consumption, extends the service life of the equipment, and ensures the safety and flexibility of the lifting process.

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Abstract

The invention relates to the technical field of steel structure engineering, in particular to steel structure profile hoisting equipment which comprises a trailer platform, the trailer platform is used for being fixedly connected with a transport vehicle head, a control room is loaded on the left side of the upper portion of the trailer platform and conducts circuit control on the whole hoisting equipment, and fences are fixedly installed on the four sides of the control room. A plurality of electric control supporting frames are installed on the front side and the rear side of the bottom of the trailer platform. When the lifting device is used, the lifting device and the transport vehicle are separated in a running and towing mode, and the displacement adjusting device of the lifting device on the transport vehicle is additionally arranged, so that the use requirements under different complex environments can be met, and the operation limitation of a crane of large-tonnage equipment is avoided; and the energy consumption of the traditional crane needing to be moved can be reduced, and the equipment operation is ensured.
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Description

Technical Field

[0001] The present invention relates to the technical field of steel structure engineering, and in particular to a steel structure profile hoisting device. Background Art

[0002] Steel structure engineering is one of the main types of building structures. It is one of the more common structural forms in modern construction. China was the first country to use iron to manufacture load-bearing structures. Steel structure engineering is a structure primarily made of steel. Many major projects use steel structure as the main construction technology.

[0003] In modern construction projects, large cranes are often used. These large cranes are independent vehicles, which leads to restrictions on the flexible use of large-tonnage cranes in narrow and short construction environments. At the same time, these large-tonnage equipment vehicles spend a lot of time and energy on driving during the transportation process, which is not conducive to work needs. Summary of the Invention

[0004] Those skilled in the art have provided a steel structure profile lifting device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides a steel structure profile lifting equipment, comprising Trailer platform, which is used for fixed connection with the transport vehicle head; The erection platform is fixedly installed on the right side of the top of the trailer platform. Slide rails are fixedly installed on the front and back sides of the top of the erection platform, and a slidable sliding seat is provided on the upper end of each slide rail; Electric push rods: two electric push rods are fixedly installed on the top of each sliding seat. The extension and retraction of the electric push rods are controlled by the control room. The tops of the four electric push rods are fixedly installed on the same ceiling platform. Telescopic hanger, the telescopic hanger is fixedly installed at the bottom center of the ceiling platform; The sliding drive group serves as the driving unit of the sliding seat.

[0006] In a preferred embodiment: a control room is installed on the left side above the trailer platform, and the control room performs circuit control on the overall lifting equipment. Fences are fixedly installed on the four sides of the control room, and several electric control support frames are installed on the front and back sides of the bottom of the trailer platform.

[0007] By adopting the above technical solution, the electric-controlled support frame is used to extend and retract the support after the transport vehicle is transported to the designated location, thereby increasing the contact area between the towing platform and the ground and increasing the weighing capacity, ensuring the stability of the base during the lifting process and preventing shaking during the lifting process.

[0008] In a preferred embodiment: the sliding seat includes a sliding base, the sliding base serves as a supporting base and a sliding platform of the sling, pulleys are fixedly installed on the front and rear sides of the bottom of the sliding base, a number of limiting rods are installed on the left and right sides of the bottom of the sliding base, and two groups of left-right symmetrical first limiting wheels are provided at the bottom of the sliding base.

[0009] By adopting the above technical solution, multiple limit rods are set on the left and right sides of the slide rail. The limit rods can prevent the sliding base from tipping over, and the first limit wheel can assist the sliding base in sliding on the slide rail through the pulley.

[0010] In a preferred embodiment, a plurality of counterweight groups are fixedly installed on the front and rear sides of the ceiling platform.

[0011] By adopting the above technical solution, the counterweight group can increase the weight of the lifting equipment to prevent the equipment from tipping over due to the heavy weight of the cargo during the cargo transfer process.

[0012] In a preferred embodiment: the base of the telescopic hanger is a fixed hanger installed on the steel at the bottom of the ceiling platform, and a gear rack is fixedly installed in the top center of the fixed hanger. The gear rack is in the shape of a gantry as a whole, and gears are rotatably set on the left and right sides of the gear rack. A motor is installed on the gear rack, and a movable sliding hanger is set between the gear rack and the fixed hanger. A rack is fixedly installed on the top of the sliding hanger, and the sliding hanger is an I-shaped steel. A sling seat is set below the sliding hanger, and the sling seat is concave. A plurality of second limiting wheels are symmetrically installed on the inner wall of the sling seat, and a plurality of second limiting wheels are arranged inside the I-shaped groove of the sliding hanger. An I-shaped sling is fixedly installed on the bottom of the sling seat symmetrically, and a limiting chain is fixedly installed between the front right end of the sling seat and the fixed hanger.

[0013] By adopting the above technical solution, the gears are driven to rotate synchronously by the motor, and both gears are engaged with the teeth of the rack, so that the sliding hoist can slide horizontally to adapt to the size requirements of different hoisted objects. At the same time, multiple second limiting wheels are used to slide inside the I-shaped groove of the sliding hoist to ensure that the sling seat can slide on the sliding hoist and be stably mounted under the sliding hoist. The limiting chain is used to limit the sliding distance of the sling seat to prevent the sling seat from slipping and detaching. The I-shaped sling is used to insert the bayonet of the hoisted goods to assist in transportation, thereby ensuring the stability of the transportation process.

[0014] In a preferred embodiment: a plurality of connecting frame steels are fixedly installed between the two sliding seats, a plurality of corresponding slots are opened on the top of the connecting frame steel and the bottom of the ceiling platform, and a plurality of supporting steels are arranged between the connecting frame steel and the ceiling platform, and the supporting steels are correspondingly plugged into the slots.

[0015] By adopting the above technical solution, the supporting steel is placed in the slot, and the lifting equipment can provide stable support after the electric push rod is raised, so that the hoisted goods will not put all the load on the electric push rod, causing the electric push rod to be overloaded and affecting its service life.

[0016] In a preferred embodiment: the sliding drive group uses a drive motor as the driving unit of the pulley, the drive motor is fixed on the adjacent connecting frame steel, the lower end of the drive motor is fixedly installed with a speed regulator, the left and right output shafts of the speed regulator are fixedly installed with a drive rod, the end of the drive rod is fixedly installed with a hinged connecting rod, the end of the hinged connecting rod is fixedly installed with a connecting rod, and the two connecting rods are respectively connected to the central axis of the adjacent pulley.

[0017] By adopting the above technical solution, the driving motor drives the rotation of the driving rod through the speed regulator, and the movable rotation of the hinged connecting rod drives the rotation of the pulley fixed on the connecting rod, so that the sliding base can move on the slide rail, and the lifting equipment can be adjusted in position according to the complex working environment. Then, the limit rod is used to limit the sliding base to protect it from tipping over, ensuring the safe use of the device.

[0018] In a preferred embodiment, a hoist is added to the top of the ceiling platform, and the I-shaped sling at the bottom of the sling seat is replaced with a lifting claw, which is connected to the lifting claw with a steel cable wound on the hoist.

[0019] By adopting the above technical solution, the lifting drive of the winch and the change of direction of the steel cable on the directional pulley can effectively lift and lower the cargo, avoid the reciprocating lifting of the telescopic hanger, reduce mechanical fatigue, ensure the service life of the device, and the grabbing of the lifting claw replaces the insertion of the I-shaped spreader to ensure the safe retrieval of the corresponding cargo during the transportation process.

[0020] Compared with the prior art, the technical solution of the present invention has the following beneficial effects: 1. When the present invention is used, the lifting equipment and the transport vehicle are separated by operating and towing, and an adjustment and displacement device is added to the transport vehicle to meet the use requirements in different complex environments, avoid the operation restrictions of cranes with large tonnage equipment, and reduce the energy consumption required for the migration of traditional cranes to ensure the operation of the equipment.

[0021] 2. When the present invention is used, the winch and the lifting claw are installed according to the size and shape of the cargo. The lifting drive of the winch and the change of direction of the steel cable on the directional pulley can effectively lift and lower the cargo, avoid the reciprocating lifting of the telescopic hanger, reduce mechanical fatigue, and ensure the service life of the device. The grabbing of the lifting claw replaces the insertion of the I-shaped spreader to ensure the safe retrieval of the corresponding cargo during the transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of Example 1 provided in this application; Figure 2 It is a top view provided by this application; Figure 3 It is the front view provided by this application; Figure 4 It is a structural schematic diagram of the sliding seat provided by this application; Figure 5 It is a schematic diagram of the structure of the support steel provided in this application; Figure 6 It is a structural diagram of the slip drive group provided by this application; Figure 7 This is a schematic diagram of the structure of Example 2 provided in this application; Figure 8 It is a structural schematic diagram of the lifting claw provided by this application; Figure: 1. Towing platform; 2. Control room; 3. Fence; 4. Erection platform; 5. Electric control support frame; 6. Slide rail; 7. Sliding seat; 8. Electric push rod; 9. Ceiling platform; 10. Telescopic hanger; 11. Sliding drive group; 12. Counterweight group; 13. Support steel; 14. Winch; 15. Lifting claw; 16. Connecting frame steel. 71. Sliding base; 72. Pulley; 73. Limiting rod; 74. First limiting wheel; 101. Fixed hanging seat; 102. Sliding hanging steel; 103. Spreader seat; 104. Second limiting wheel; 105. Limiting chain; 106. Rack; 107. Gear; 108. Gear rack; 109. Motor; 111. Driving motor; 112. Speed ​​regulator; 113. Driving rod; 114. Articulated connecting rod; 115. Connecting rod. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0026] Example 1: Please refer to Figures 1 to 6 As shown, in this embodiment, a steel structure profile lifting device is provided, comprising: The trailer platform 1 is used for fixed connection with the transport vehicle head. A control room 2 is installed on the left side above the trailer platform 1. The control room 2 controls the circuit of the entire lifting equipment. Fences 3 are fixedly installed on the four sides of the control room 2. Several electric control support frames 5 are installed on the front and rear sides of the bottom of the trailer platform 1. The electric control support frames 5 are used to extend and retract after the transport vehicle is transported to the designated location, increase the contact area between the trailer platform 1 and the ground, and increase the weighing capacity, to ensure the stability of the base during the lifting process and prevent shaking during the lifting process; The erection platform 4 is fixedly mounted on the top right side of the towing platform 1, and slide rails 6 are fixedly mounted on the front and rear sides of the top of the erection platform 4. A slidable sliding seat 7 is provided on the upper end of each slide rail 6. The sliding seat 7 includes a sliding base 71. The sliding base 71 serves as a supporting base and a sliding platform for the sling. Pulleys 72 are fixedly mounted on the front and rear sides of the bottom of the sliding base 71. Several limiting rods 73 are installed on the left and right sides of the bottom of the sliding base 71, and multiple limiting rods 73 are arranged on the left and right sides of the slide rail 6. The limiting rods 73 can prevent the sliding base 71 from tipping over. Two groups of left-right symmetrical first limiting wheels 74 are provided on the bottom of the sliding base 71. The first limiting wheels 74 can assist the sliding of the sliding base 71 on the slide rail 6 through the pulley 72; Electric push rods 8, two electric push rods 8 are fixedly installed on the top of each sliding seat 7, and the extension and retraction of the electric push rods 8 are controlled by the control room 2. The top of the four electric push rods 8 is fixedly installed with the same ceiling platform 9, and a number of counterweight groups 12 are fixedly installed on the front and back sides of the ceiling platform 9. The counterweight group 12 can increase the weight of the lifting equipment to prevent the equipment from tipping over due to the heavy weight of the goods during the cargo transfer process; Telescopic hanger 10, telescopic hanger 10 is fixedly installed at the bottom center of ceiling platform 9, the base of telescopic hanger 10 is fixed hanger 101 built of steel installed at the bottom of ceiling platform 9, and gear rack 108 is fixedly installed at the top center of fixed hanger 101. Gear rack 108 is gantry-shaped as a whole, and gears 107 are rotatably provided on the left and right sides of gear rack 108. Motor 109 is installed on gear rack 108, and gear 107 is synchronously driven to rotate by motor 109. A movable sliding hanger steel 102 is provided between gear rack 108 and fixed hanger 101, and rack 106 is fixedly installed on the top of sliding hanger steel 102. Two gears 107 are meshed with the teeth of rack 106, so that sliding hanger steel 102 can slide horizontally to adapt to the size requirements of different hoisting objects. The sliding lifting steel 102 is an I-shaped steel, and a sling seat 103 is arranged under the sliding lifting steel 102. The sling seat 103 is concave, and a plurality of second limiting wheels 104 are symmetrically installed on the inner wall of the sling seat 103, and a plurality of second limiting wheels 104 are arranged inside the I-shaped groove of the sliding lifting steel 102, so as to ensure that the sling seat 103 can slide on the sliding lifting steel 102 while being stably mounted under the sliding lifting steel 102. An I-shaped sling is fixedly installed on the bottom of the sling seat 103 symmetrically, and the bayonet of the hoisted goods is inserted into the bayonet to help transport the goods. A limiting chain 105 is fixedly installed between the front right end of the sling seat 103 and the fixed sling 101, and the sliding distance of the sling seat 103 is limited by the limiting chain 105 to prevent the sling seat 103 from slipping and detaching; Connecting frame steel 16, multiple connecting frame steels 16 are fixedly installed between the two sliding seats 7, and a number of corresponding notches are opened on the top of the connecting frame steel 16 and the bottom of the ceiling platform 9. A number of supporting steels 13 are set between the connecting frame steel 16 and the ceiling platform 9, and the supporting steels 13 are placed in the notches, so as to ensure that the hoisting equipment can provide stable support after the electric push rod 8 is raised, so that the hoisted goods will not put all the load on the electric push rod 8, resulting in excessive load on the electric push rod 8 and affecting the service life of the electric push rod 8; The sliding drive group 11 uses a driving motor 111 as the driving unit of the pulley 72. The driving motor 111 is fixed on the adjacent connecting frame steel 16. The lower end of the driving motor 111 is fixedly installed with a speed regulator 112. The left and right output shafts of the speed regulator 112 are fixedly installed with a driving rod 113. The end of the driving rod 113 is fixedly installed with a hinged connecting rod 114. The end of the hinged connecting rod 114 is fixedly installed with a connecting rod 115, and the two connecting rods 115 are respectively connected to the adjacent pulley 72 through the central axis.

[0027] like Figure 2 and 3 As shown, the second limiting wheel 104 slides in the inner groove of the sliding hanger 102 in advance, the position of the sling seat 103 on the sliding hanger 102 is moved and then locked, and then the motor 109 is started to drive the gear 107 on the gear frame 108 to rotate through the speed regulator 112, so that the two gears 107 are engaged with the rack 106, so that the sliding hanger 102 can slide back and forth horizontally, and the I-shaped sling is inserted into the bayonet of the hoisted goods to help transfer, thereby adapting to the size requirements of different hoisted objects.

[0028] like Figure 4 and 6 As shown, the driving motor 111 drives the driving rod 113 to rotate through the speed regulator 112, and the movable rotation of the hinged connecting rod 114 drives the pulley 72 fixed on the connecting rod 115 to rotate, so that the sliding base 71 can move on the slide rail 6, so that the lifting equipment can adjust its position according to the complex working environment, and then cooperate with the limiting rod 73 to protect the sliding base 71 from tipping over, ensuring the safe use of the device.

[0029] Example 2: Please refer to Figure 7 and 8 As shown, in this embodiment, a winch 14 is added to the top of the ceiling platform 9, and the bottom I-shaped sling of the sling seat 103 is replaced with a lifting claw 15, and the steel cable wrapped around the winch 14 is connected to the lifting claw 15, so as to meet the lifting requirements of different goods.

[0030] By implementing the structure of 2, the lifting drive of the winch 14 and the change of direction of the steel cable on the directional pulley can effectively lift and lower the cargo, avoid the reciprocating lifting of the telescopic hanger 10, reduce mechanical fatigue, and ensure the service life of the device. The grabbing of the lifting claw 15 replaces the insertion of the I-shaped spreader to ensure the safety of the corresponding cargo during the transportation process.

[0031] Specific implementation process: The technical solution of this application is mainly used in relatively narrow and short construction environments, where the flexible use of large-tonnage cranes is required. The entire trailer platform 1 is carried and transported by a traditional transport truck head. After the lifting equipment is delivered to the target area, the electric control support frame 5 is retracted to increase the contact area between the trailer platform 1 and the ground, and increase the weighing capacity, thereby ensuring the stability of the base during the lifting process and preventing shaking during the lifting process; Next, the electric push rod 8 is driven to rise, and the telescopic hanger 10 is raised to the specified position, and the support steel 13 is fixedly installed to ensure that the hoisting equipment can provide stable support after the electric push rod 8 is raised, so that the hoisted goods will not put all the load on the electric push rod 8, resulting in excessive load on the electric push rod 8 and affecting the service life of the electric push rod 8; Finally, the driving motor 111 drives the driving rod 113 through the speed regulator 112, and the movable rotation of the hinged connecting rod 114 drives the pulley 72 fixed on the connecting rod 115 to rotate, so that the sliding base 71 can move on the slide rail 6, so that the hoisting equipment can adjust its position according to the complex working environment. Then the motor 109 is started to drive the gear 107 on the gear rack 108 through the speed regulator 112, so that the two gears 107 are engaged with the rack 106, so that the sliding hoist steel 102 can reciprocate horizontally. Slide and insert the I-shaped spreader into the bayonet of the hoisted goods to help transfer, so as to adapt to the size requirements of different hoisted objects. In this process, the hoist 14 and the lifting claw 15 are installed according to the size and shape of the goods. The hoisting drive of the hoist 14 and the change of direction of the steel cable on the directional pulley can effectively lift and lower the goods for transportation, avoid the reciprocating lifting of the telescopic hanger 10, reduce mechanical fatigue, and ensure the service life of the device. The grabbing of the lifting claw 15 replaces the insertion of the I-shaped spreader to ensure the safety of the corresponding goods in the transfer process. This application separates the lifting equipment and the transport vehicle by operating and towing, and adds an adjustment and displacement device to the lifting equipment on the transport vehicle, so as to meet the usage requirements in different complex environments, avoid the operation restrictions of cranes with large tonnage equipment, and reduce the energy consumption required for the migration of traditional cranes to ensure the operation of the equipment.

[0032] The above is only a preferred specific embodiment of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with this technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the scope of protection of the present invention.

Claims

1. A steel structure profile lifting equipment, characterized in that: described A trailer platform (1), the trailer platform (1) is used for fixed connection with the transport vehicle head; A mounting platform (4) is fixedly mounted on the right side of the top of the towing platform (1), and slide rails (6) are fixedly mounted on both the front and rear sides of the top of the mounting platform (4), and a slidable sliding seat (7) is provided at the upper end of each slide rail (6); Electric push rods (8), two electric push rods (8) are fixedly installed on the top of each sliding seat (7), and the extension and retraction of the electric push rods (8) are controlled by the control room (2), and the tops of the four electric push rods (8) are fixedly installed with the same ceiling platform (9); A telescopic hanger (10), the telescopic hanger (10) is fixedly mounted at the bottom center of the ceiling platform (9); The sliding drive group (11) serves as a driving unit of the sliding seat (7).

2. The steel structure profile lifting equipment according to claim 1, characterized in that: A control room (2) is mounted on the left side above the trailer platform (1), fences (3) are fixedly installed on four sides of the control room (2), and a plurality of electric control support frames (5) are installed on both the front and rear sides of the bottom of the trailer platform (1).

3. The steel structure profile lifting equipment according to claim 2, characterized in that: The sliding seat (7) includes a sliding base (71), the sliding base (71) serves as a supporting base and a sliding platform for the sling, pulleys (72) are fixedly installed on both the front and rear sides of the bottom of the sliding base (71), a plurality of limiting rods (73) are installed on both the left and right sides of the bottom of the sliding base (71), and two groups of left-right symmetrical first limiting wheels (74) are provided on the bottom of the sliding base (71).

4. The steel structure profile lifting equipment according to claim 3, characterized in that: A plurality of counterweight groups (12) are fixedly mounted on the front and rear sides of the ceiling platform (9).

5. The steel structure profile lifting equipment according to claim 4, characterized in that: The base of the telescopic hanger (10) is a fixed hanger (101) installed on the bottom steel of the ceiling platform (9), a gear rack (108) is fixedly installed at the center of the top of the fixed hanger (101), the gear rack (108) is in the shape of a gantry, and gears (107) are rotatably provided on both the left and right sides of the gear rack (108), a motor (109) is installed on the gear rack (108), a movable sliding hanger steel (102) is provided between the gear rack (108) and the fixed hanger (101), and a rack ( 106), the sliding hoist steel (102) is an I-shaped steel, a sling seat (103) is arranged below the sliding hoist steel (102), the sling seat (103) is concave, and a plurality of second limiting wheels (104) are symmetrically installed on the inner wall of the sling seat (103), and the plurality of second limiting wheels (104) are arranged inside the I-shaped groove of the sliding hoist steel (102), an I-shaped sling is fixedly installed symmetrically on the bottom of the sling seat (103), and a limiting chain (105) is fixedly installed between the front right end of the sling seat (103) and the fixed sling (101).

6. The steel structure profile lifting equipment according to claim 5, characterized in that: A plurality of connecting frame steels (16) are fixedly installed between the two sliding seats (7), and a plurality of corresponding notches are provided on the top of the connecting frame steel (16) and the bottom of the ceiling platform (9). A plurality of supporting steels (13) are provided between the connecting frame steel (16) and the ceiling platform (9), and the supporting steels (13) are correspondingly plugged into the notches.

7. The steel structure profile lifting equipment according to claim 6, characterized in that: The sliding drive group (11) is composed of a driving motor (111) as a driving unit of the pulley (72), the driving motor (111) is fixed on the adjacent connecting frame steel (16), the driving motor (111) is fixedly installed with a speed regulator (112) at the lower end of the driving motor (111), the left and right output shafts of the speed regulator (112) are fixedly installed with a driving rod (113), the end of the driving rod (113) is fixedly installed with a hinged connecting rod (114), the end of the hinged connecting rod (114) is fixedly installed with a connecting rod (115), and the two connecting rods (115) are respectively connected to the adjacent pulley (72) through a central axis.

8. The steel structure profile lifting equipment according to claim 7, characterized in that: A hoist (14) is added to the top of the ceiling platform (9), and the bottom I-shaped sling of the sling seat (103) is replaced with a sling claw (15), and the steel cable wound on the hoist (14) is connected to the sling claw (15).