Lifting device for constructional engineering

Abstract

The invention discloses a hoisting device for constructional engineering, and relates to the field of hoisting equipment, the hoisting device comprises a supporting frame, a fixing frame, a hoisting frame, a first adjusting mechanism and a second adjusting mechanism, the bottom end of the fixing frame is rotatably connected with the supporting frame through a rotating shaft, the axis of the rotating shaft is perpendicular to the length direction of the supporting frame, and the hoisting frame is installed on the supporting frame; the lifting frame can move in the length direction of the supporting frame, and the first adjusting mechanism is installed on the fixing frame. The two ends of the fixing frame are connected through the pull rope, the length, located on the two sides of the supporting frame, of the pull rope is adjusted through the adjusting component, so that the fixing frame is kept stable during inclination and cannot rotate or shake around the rotating shaft, the stability of the hoisting device is effectively improved, and potential safety hazards in the construction process are reduced; the fixing frame is driven to incline by utilizing the self weight of the component, the moment generated by gravity center shift and the tension of the pull rope form couple balance, the driving load is reduced, and the safety of the device is further improved.

Description

Technical Field

[0001] The invention relates to lifting equipment technology, in particular to a lifting device used in construction engineering. Background Art

[0002] In the field of construction engineering, the lifting and installation of heavy objects such as prefabricated components and pipes have significant pain points: traditional lifting equipment can only achieve single-position transportation in the horizontal or vertical direction, and in actual construction, it is often necessary to adjust the components in the horizontal transportation state to the vertical installation state. For example, prefabricated wall panels are stacked horizontally during transportation to save space, but need to be erected vertically during installation; large pipes need to be turned from flat to upright before being hoisted to the bracket.

[0003] The existing technology generally adopts a step-by-step operation scheme, first lifting the component to the target position by a crane, and then adjusting the posture with the help of manual or auxiliary machinery, which leads to the following problems: the secondary adjustment increases the operation time by 30% to 50%. Especially in the construction of high-rise buildings, the time cost of tower crane scheduling increases significantly, which is easy to cause component shaking and collision. According to statistics, 15% of construction accidents in my country in 2023 are related to instability in lifting operations, and special posture adjustment equipment or increased manual intervention are required. The equipment utilization rate is low in small and medium-sized projects;

[0004] For example, a Chinese invention patent with publication number CN117003119A discloses a large-span high-grid electromechanical pipeline lifting device and an installation method thereof. The large-span high-grid electromechanical pipeline lifting device and an installation method thereof control the inclination state of the lifting frame by controlling the retraction and extension of the lifting cables by two lifting components, thereby making the pipeline incline so that the pipeline can pass between the steel frame structures of the building after being tilted, and the clamping point of the pipeline can be changed, thereby changing the position of the pipeline lifting point; however, in actual lifting work, when the clamping point of the pipeline is changed, that is, when the center of gravity is changed, the lifting frame is prone to overturning and swinging, and there is a certain lifting risk. Summary of the invention

[0005] The purpose of the present invention is to provide a lifting device for construction projects to solve the problem that the lifting device in the prior art cannot dynamically adjust the tilt angle according to the installation requirements of the hoisted objects, and lacks a center of gravity compensation mechanism, resulting in poor stability.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a lifting device for construction engineering, comprising a supporting frame, a fixing frame, a lifting frame, a first adjusting mechanism and a second adjusting mechanism;

[0007] The bottom end of the fixed frame is rotatably connected to the support frame through a rotating shaft, and the axis of the rotating shaft is perpendicular to the length direction of the support frame;

[0008] The lifting frame is installed on the supporting frame, and the lifting frame can move along the length direction of the supporting frame;

[0009] The first adjustment mechanism is installed on the fixed frame, and the first adjustment mechanism is used to drive the lifting frame to move along the length direction of the fixed frame;

[0010] The second adjustment mechanism includes a pull rope and an adjustment component, and the two ends of the fixed frame are defined as end A and end B respectively, one end of the pull rope is connected to the fixed frame near end A, and the other end of the pull rope is connected to the fixed frame near end B, and the middle section of the pull rope is connected to the support frame, and the adjustment component is used to adjust the length of the pull rope on both sides of the support frame;

[0011] When the first adjustment mechanism drives the lifting frame to move along the length direction of the support frame toward the A end of the support frame, the adjustment component can adjust: the length of the pull rope on the side of the support frame close to the A end of the fixed frame increases, and the length of the pull rope on the side of the support frame close to the B end of the fixed frame decreases;

[0012] When the first adjustment mechanism drives the lifting frame to move along the length direction of the support frame toward the B end of the support frame, the adjustment component can adjust: the length of the pull rope on the side of the support frame close to the B end of the fixed frame increases, and the length of the pull rope on the side of the support frame close to the A end of the fixed frame decreases.

[0013] Furthermore, the first adjustment mechanism includes a guide member, a screw and a first rotating drive member. The outer side of the lifting frame is connected to the guide member, and the guide member is used to limit the movement of the lifting frame along the length direction of the fixed frame. The outer wall of the screw is threadedly connected to the lifting frame, and the outer walls at both ends of the screw are rotatably connected to the fixed frame. One end of the screw is fixedly connected to the output shaft end of the first rotating drive member.

[0014] Furthermore, the guide member is a slide groove opened on the fixed frame, the cross section of the slide groove is T-shaped, the inner wall of the slide groove is slidably connected to the lifting frame, and the length direction of the slide groove is the same as the length direction of the fixed frame.

[0015] Furthermore, the adjusting component includes a winding roller and a rotating drive assembly. The outer walls at both ends of the winding roller are respectively rotatably connected to the support frame. The middle section of the pull rope is spirally wound around the outside of the winding roller. One side of the winding roller is connected to a rotating drive assembly for driving the winding roller to rotate around its own axis.

[0016] Furthermore, the rotary drive assembly includes a rack, the lower surface of the rack is fixedly connected to the lifting frame, the upper side of the rack is meshed with a gear, the gear is fixedly sleeved on the outside of the rotating shaft, and the rotating shaft is connected to the winding roller through a transmission belt.

[0017] Furthermore, the rotary drive assembly is a second rotary drive member, an output shaft end of the second rotary drive member is fixedly connected to one end of the winding roller, and the second rotary drive member is fixedly mounted on the support frame.

[0018] Furthermore, the surface of the winding roller is provided with anti-slip grooves, and anti-slip baffles are provided at both ends of the winding roller.

[0019] Furthermore, an inclination sensor is provided, which is mounted on the fixing frame and is used to monitor the inclination angle of the fixing frame.

[0020] Furthermore, a hook is fixedly installed on the top of the support frame.

[0021] Furthermore, the pull rope is a steel wire rope.

[0022] Compared with the prior art, the present invention provides a lifting device for construction engineering. By connecting the two ends of the fixing frame with a pull rope, and adjusting the length of the pull rope on both sides of the support frame by an adjusting component, the fixing frame can remain stable when tilted and will not rotate or shake around the rotating shaft, thereby effectively improving the stability of the lifting device and reducing the potential safety hazards during the construction process. By shifting the center of gravity and utilizing the deadweight of the component to drive the fixing frame to tilt, the torque generated by the center of gravity shift and the tension of the pull rope form a couple balance, thereby reducing the driving load and further improving the safety of the device.

[0023] Through the cooperation between the first adjustment mechanism and the second adjustment mechanism, the movement of the hoisting frame and the length of the pull rope are synchronously adjusted to form three-dimensional stability in space, so that the device can adapt to complex and changeable construction scenes;

[0024] The inclination angle of the fixed frame is monitored in real time by the inclination sensor, that is, the inclination angle of the hoisted component is monitored in real time, providing accurate inclination angle data for the construction personnel, which helps to control the construction process more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 A schematic diagram of a first external stereoscopic structure provided by an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of a front cross-sectional structure provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of a side cross-sectional structure provided by an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the combination of a pull rope and a winding roller provided in an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the combination of a rotating shaft, a lifting frame and a second adjustment mechanism provided in an embodiment of the present invention;

[0031] Figure 6 A bottom-up structural schematic diagram provided for an embodiment of the present invention;

[0032] Figure 7 A second external stereoscopic schematic diagram provided by an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 100, support frame; 200, fixed frame; 300, rotating shaft; 400, lifting frame; 500, first adjusting mechanism; 510, screw; 520, first rotating drive member; 600, second adjusting mechanism; 610, pull rope; 620, adjusting component; 621, winding roller; 622, rack; 623, gear; 624, second rotating drive member; 700, inclination sensor; 800, hook. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] See also Figures 1 to 4 , a lifting device for construction engineering, comprising a supporting frame 100, a fixing frame 200, a lifting frame 400, a first adjusting mechanism 500 and a second adjusting mechanism 600;

[0037] The bottom end of the fixing frame 200 is rotatably connected to the supporting frame 100 via a rotating shaft 300, and the axis of the rotating shaft 300 is perpendicular to the length direction of the supporting frame 100;

[0038] The lifting frame 400 is installed on the supporting frame 100, and the lifting frame 400 can move along the length direction of the supporting frame 100;

[0039] The first adjustment mechanism 500 is installed on the fixing frame 200, and the first adjustment mechanism 500 is used to drive the lifting frame 400 to move along the length direction of the fixing frame 200;

[0040] The second adjustment mechanism 600 includes a pull rope 610 and an adjustment component 620, and the two ends of the fixed frame 200 are defined as end A and end B respectively. One end of the pull rope 610 is connected to the fixed frame 200 near end A, and the other end of the pull rope 610 is connected to the fixed frame 200 near end B. The middle section of the pull rope 610 is connected to the support frame 100, and the adjustment component 620 is used to adjust the length of the pull rope 610 on both sides of the support frame 100;

[0041] When the first adjustment mechanism 500 drives the hoisting frame 400 to move along the length direction of the support frame 100 toward the A end of the support frame 100, the adjustment component 620 can adjust: the length of the pull rope 610 on the side of the support frame 100 close to the A end of the fixing frame 200 increases, and the length of the pull rope 610 on the side of the support frame 100 close to the B end of the fixing frame 200 decreases;

[0042] When the first adjustment mechanism 500 drives the lifting frame 400 to move along the length direction of the support frame 100 toward the B end of the support frame 100, the adjustment component 620 can adjust: the length of the pull rope 610 on the side of the support frame 100 close to the B end of the fixed frame 200 increases, and the length of the pull rope 610 on the side of the support frame 100 close to the A end of the fixed frame 200 decreases.

[0043] In construction, it is often necessary to hoist objects, such as prefabricated parts and pipes. When these construction components are transported to the construction site, they are usually placed horizontally. When they are installed, they need to be installed vertically. As a result, when they are hoisted to the installation point, the placement of the components needs to be adjusted twice for installation, resulting in low construction efficiency.

[0044] To this end, in the present application, the component to be lifted is fastened to the lifting frame 400 by means of binding parts such as straps, and the support frame 100 is connected to the wire rope of the crane or tower crane. During the lifting process, if the component needs to be tilted to facilitate installation, the lifting frame 400 can be driven by the first adjustment mechanism 500 to move along the length direction of the support frame 100 in the direction in which the tilt is required. At this time, the lifting frame 400 drives the lifted component to move, so that the center of gravity is shifted. At this time, the adjustment component 620 adjusts the length of the pull rope 610 on both sides of the support frame 100, so that the length of the pull rope 610 at the end of the support frame 100 close to the downward tilt of the component is increased, and the pull rope is pulled. The length of the rope 610 on the other side of the support frame 100 is reduced, and the fixed frame 200 is tilted. When the fixed frame 200 is tilted, the fixed frame 200 drives the lifting frame 400 to tilt, thereby tilting the lifted component. Since the two ends of the pull rope 610 are respectively connected to the two ends of the fixed frame 200, no matter which direction the fixed frame 200 tilts, one end of the pull rope 610 will always be in a straight state, so that the fixed frame 200 will not rotate and shake around the rotating shaft 300, which effectively improves the stability of the lifting device. By shifting the center of gravity and driving the fixed frame 200 to tilt by the dead weight of the component, the load required by the adjustment component 620 to adjust the pull rope 610 can also be greatly reduced.

[0045] See also Figure 2In one embodiment of the present invention, the first adjustment mechanism 500 includes a guide member, a screw rod 510 and a first rotary drive member 520. The outer side of the lifting frame 400 is connected to the guide member, and the guide member is used to limit the lifting frame 400 from moving along the length direction of the fixed frame 200. The outer wall of the screw rod 510 is threadedly connected to the lifting frame 400. The outer walls of both ends of the screw rod 510 are rotatably connected to the fixed frame 200. One end of the screw rod 510 is fixedly connected to the output shaft end of the first rotary drive member 520. The first rotary drive member 520 adopts a rotary cylinder or a motor. The first rotary drive member 520 is fixedly installed on the fixed frame 200.

[0046] Specifically, the screw rod 510 is driven to rotate by the first rotating driving member 520. Under the limitation of the guide member, the screw rod 510 drives the lifting frame 400 to move along the length direction of the fixed frame 200. The lifting frame 400 drives the lifted component to move, so that the center of gravity is shifted by the change in the position of the component, so as to realize the rotation and tilting of the fixed frame 200.

[0047] In one embodiment of the present invention, the guide member is a slide groove provided on the fixing frame 200, the cross section of the slide groove is T-shaped, the inner wall of the slide groove is slidably connected to the lifting frame 400, and the length direction of the slide groove is the same as the length direction of the fixing frame 200;

[0048] Specifically, the movement of the lifting frame 400 is limited by the slide groove, and the cross section of the slide groove is set to be T-shaped. The slide groove supports the lifting frame 400 to improve the stability of the device.

[0049] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 In one embodiment of the present invention, the adjusting component 620 includes a winding roller 621 and a rotation driving assembly. The outer side walls of both ends of the winding roller 621 are respectively rotatably connected to the support frame 100. The middle section of the pull rope 610 is spirally wound around the outside of the winding roller 621. One side of the winding roller 621 is connected to the rotation driving assembly for driving the winding roller 621 to rotate around its own axis.

[0050] Specifically, the winding roller 621 is driven to rotate by the rotating driving assembly. When rotating, the winding roller 621 can reel in one end of the pull rope 610 and unreel the other end of the pull rope 610, thereby adjusting the length of the pull rope 610 on both sides of the support frame 100 to adjust the inclination angle of the fixed frame 200.

[0051] See also Figure 2 , Figure 3 and Figure 5In one embodiment of the present invention, the rotary drive assembly includes a rack 622, the lower surface of the rack 622 is fixedly connected to the lifting frame 400, the upper side of the rack 622 is meshed with a gear 623, the gear 623 is fixedly sleeved on the outside of the rotating shaft 300, the rotating shaft 300 can rotate around its own axis relative to the supporting frame 100 and the fixing frame 200, the rotating shaft 300 is connected to the winding roller 621 through a transmission belt, the rotating shaft 300 and the winding roller 621 are both fixedly sleeved with transmission wheels, and the two transmission wheels are sleeved with the same transmission belt.

[0052] Specifically, when the hoisting frame 400 moves under the drive of the first adjustment mechanism 500, the hoisting frame 400 drives the rack 622 to move, and when the rack 622 moves, it drives the gear 623 to rotate, and the gear 623 drives the rotating shaft 300 to rotate, and when the rotating shaft 300 rotates, it drives the transmission belt to drive the winding roller 621 to rotate, and the winding roller 621 synchronously winds and unwinds the two ends of the pull rope 610 to adjust the length of the pull rope 610 on both sides of the support frame 100;

[0053] In order to achieve transmission stability, the transmission belt can be set as a synchronous belt, or the transmission belt drive can be replaced by a sprocket drive.

[0054] See also Figure 7 In one embodiment of the present invention, the rotary drive assembly is a second rotary drive member 624, the output shaft end of the second rotary drive member 624 is fixedly connected to one end of the winding roller 621, the second rotary drive member 624 is fixedly mounted on the support frame 100, and the second rotary drive member 624 adopts a rotary cylinder or a motor;

[0055] Specifically, in order to improve the applicability of the lifting device, the second rotating drive member 624 is used to directly drive the winding roller 621 to rotate so as to adjust the length of the pull rope 610 on both sides of the support frame 100. When the objects being lifted are irregular and it is difficult to achieve that the center of gravity of the objects is at the center of the lifting device, the support frame 100 is connected to the rotating shaft 300 of the fixed frame 200 to provide horizontal rotation freedom, and the movement of the lifting frame 400 and the synchronous adjustment of the pull rope 610 form a three-dimensional spatial stability system, which is suitable for complex construction scenarios.

[0056] In one embodiment of the present invention, the surface of the winding roller 621 is provided with anti-slip grooves, and both ends of the winding roller 621 are provided with anti-slip baffles;

[0057] Specifically, the anti-skid grooves are provided to reduce the probability of the pull rope 610 slipping relative to the winding roller 621, and the anti-slip baffle is provided to prevent the pull rope 610 from escaping from the winding roller 621.

[0058] See also Figure 6In one embodiment of the present invention, a tilt sensor 700 is further provided. The tilt sensor 700 is mounted on the fixing frame 200. The tilt sensor 700 is used to monitor the tilt angle of the fixing frame 200.

[0059] Specifically, the tilt angle sensor 700 is provided to monitor the tilt angle of the fixing frame 200 in real time, that is, the tilt angle of the hoisted component is monitored in real time.

[0060] See also Figure 1 In one embodiment of the present invention, a hook 800 is fixedly installed on the top of the support frame 100 to facilitate connection with a crane or a tower crane.

[0061] In one embodiment of the present invention, the pull rope 610 is made of a steel wire rope to improve the durability of the pull rope 610 .

[0062] In one embodiment of the present invention, a corresponding control unit can be set for use. The control unit can select any controller to be connected to the electrical parts in the present application, so as to control the opening and closing operation of each electrical part. This part is the prior art. Here, a single-chip microcomputer can be provided as a control unit for display. The single-chip microcomputer in this embodiment is a typical embedded microcontroller (Microcontroller Unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., which is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but it has a small storage capacity, a simple input and output interface, and low functional consumption.

[0063] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed 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 elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0067] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0068] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting device for construction engineering, characterized in that: include: Support frame (100); A fixed frame (200), the bottom end of which is rotatably connected to the support frame (100) via a rotating shaft (300), and the axis of the rotating shaft (300) is perpendicular to the length direction of the support frame (100); A lifting frame (400) is installed on the supporting frame (100), and the lifting frame (400) can move along the length direction of the supporting frame (100); A first adjustment mechanism (500) is installed on the fixing frame (200), and the first adjustment mechanism (500) is used to drive the lifting frame (400) to move along the length direction of the fixing frame (200); The second adjustment mechanism (600) comprises a pull rope (610) and an adjustment component (620), wherein the two ends of the fixed frame (200) are defined as end A and end B respectively, one end of the pull rope (610) is connected to the fixed frame (200) near end A, the other end of the pull rope (610) is connected to the fixed frame (200) near end B, the middle section of the pull rope (610) is connected to the support frame (100), and the adjustment component (620) is used to adjust the length of the pull rope (610) located on both sides of the support frame (100); When the first adjustment mechanism (500) drives the lifting frame (400) to move along the length direction of the support frame (100) toward the A end of the support frame (100), the adjustment component (620) can adjust: the length of the pull rope (610) located on the side of the support frame (100) close to the A end of the fixed frame (200) increases, and the length of the pull rope (610) located on the side of the support frame (100) close to the B end of the fixed frame (200) decreases; When the first adjustment mechanism (500) drives the lifting frame (400) to move along the length direction of the support frame (100) toward the B end of the support frame (100), the adjustment component (620) can adjust: the length of the pull rope (610) on the side of the support frame (100) close to the B end of the fixed frame (200) is increased, and the length of the pull rope (610) on the side of the support frame (100) close to the A end of the fixed frame (200) is reduced.

2. A lifting device for construction engineering according to claim 1, characterized in that: The first adjustment mechanism (500) comprises a guide member, a screw rod (510) and a first rotation driving member (520); the outer side of the lifting frame (400) is connected to the guide member, and the guide member is used to limit the movement of the lifting frame (400) along the length direction of the fixed frame (200); the outer side wall of the screw rod (510) is threadedly connected to the lifting frame (400); the outer side walls at both ends of the screw rod (510) are rotationally connected to the fixed frame (200); and one end of the screw rod (510) is fixedly connected to the output shaft end of the first rotation driving member (520).

3. A lifting device for construction engineering according to claim 2, characterized in that: The guide member is a slide groove provided on the fixed frame (200), the cross section of the slide groove is T-shaped, the inner wall of the slide groove is slidably connected to the lifting frame (400), and the length direction of the slide groove is the same as the length direction of the fixed frame (200).

4. A lifting device for construction engineering according to claim 1, characterized in that: The adjusting component (620) comprises a winding roller (621) and a rotation driving assembly. The outer side walls at both ends of the winding roller (621) are respectively rotatably connected to the support frame (100). The middle section of the pull rope (610) is spirally wound around the outside of the winding roller (621). One side of the winding roller (621) is connected to the rotation driving assembly for driving the winding roller (621) to rotate around its own axis.

5. A lifting device for construction engineering according to claim 4, characterized in that: The rotary drive assembly comprises a rack (622), the lower surface of the rack (622) is fixedly connected to the lifting frame (400), the upper side of the rack (622) is meshed with a gear (623), the gear (623) is fixedly sleeved on the outside of the rotating shaft (300), and the rotating shaft (300) is transmission-connected to the winding roller (621) via a transmission belt.

6. A lifting device for construction engineering according to claim 4, characterized in that: The rotary drive component is a second rotary drive member (624), the output shaft end of the second rotary drive member (624) is fixedly connected to one end of the winding roller (621), and the second rotary drive member (624) is fixedly mounted on the support frame (100).

7. A lifting device for construction engineering according to claim 4, characterized in that: The surface of the winding roller (621) is provided with anti-skid grooves, and both ends of the winding roller (621) are provided with anti-slip baffles.

8. A lifting device for construction engineering according to claim 1, characterized in that: A tilt sensor (700) is also provided. The tilt sensor (700) is mounted on the fixing frame (200). The tilt sensor (700) is used to monitor the tilt angle of the fixing frame (200).

9. A lifting device for construction engineering according to claim 1, characterized in that: A hook (800) is fixedly mounted on the top of the support frame (100).

10. A lifting device for construction engineering according to claim 1, characterized in that: The pull rope (610) adopts a steel wire rope.

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