A hoisting device for construction

Abstract

The application discloses a hoisting device for building construction, which comprises a hoisting frame, a lifting tool and a traction assembly. The hoisting frame comprises a crossbeam and two vertical beams. The bottom of each vertical beam is provided with a universal wheel. The two ends of the crossbeam are fixedly connected with the top of each vertical beam, and the crossbeam is provided with a mounting cavity. The lifting tool is arranged below the crossbeam and can be lifted along a second direction. The traction assembly comprises a lifting rope, a power element, a first guide wheel and a second guide wheel. The first guide wheel and the second guide wheel are arranged in the mounting cavity at intervals and can rotate relative to the crossbeam. The power element is fixed on one of the vertical beams, and the output shaft of the power element is connected with a guide element. The guide element can be lifted along the second direction synchronously with the output shaft of the power element. The two ends of the lifting rope are connected with the two ends of the lifting tool respectively, and the lifting rope is sequentially arranged around the first guide wheel, the guide element and the second guide wheel. The universal wheels arranged at the bottom of the vertical beams can improve the flexibility of the whole hoisting device and make up for the mobility defects of small cranes.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to a lifting device for building construction. Background Technology

[0002] Lifting refers to the general term for the installation and positioning of equipment using cranes or hoisting mechanisms. During inspection or maintenance, various lifting tools are used to lift equipment, workpieces, tools, materials, etc., causing them to change position. In construction, there are often many large and heavy building materials, so cranes or hoisting mechanisms are frequently seen. The use of lifting devices ensures the transportation of materials in construction, thus greatly reducing construction difficulty and time. However, in current construction projects, large and small cranes are often used in combination for transporting goods. Large cranes are unsuitable for lifting environments with limited space, while small cranes are inconvenient to move on large construction sites, making it difficult to turn and move horizontally after lifting, resulting in low lifting efficiency. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a lifting device for building construction.

[0004] This application provides a lifting device for construction, comprising: A lifting frame includes a crossbeam and two vertical beams. The two vertical beams are spaced apart in a first direction and extend along a second direction. Both vertical beams are provided with casters at their bottoms. The crossbeam is located between the two vertical beams along the first direction. Both ends of the crossbeam are fixedly connected to the tops of the two vertical beams, and the crossbeam has a mounting cavity. The first direction is perpendicular to the second direction. A lifting device, which is located below the crossbeam and can be raised and lowered in the second direction; The traction assembly includes a lifting rope, a power component, a first guide wheel, and a second guide wheel. The first guide wheel and the second guide wheel are spaced apart in the mounting cavity and can rotate relative to the crossbeam. The power component is fixed on one of the vertical beams, and the output shaft of the power component is connected to a guide component. The guide component can rise and fall synchronously with the output shaft of the power component in the second direction. The two ends of the lifting rope are respectively connected to the two ends of the lifting device, and the lifting rope passes sequentially around the first guide wheel, the guide component, and the second guide wheel.

[0005] In one possible implementation, the traction assembly further includes a third guide wheel rotatably connected to one end of the crossbeam and located on the same side as the first guide wheel, with the third guide wheel positioned above the first guide wheel. The lifting rope is sequentially wound around the first guide wheel, the third guide wheel, the guide member, and the second guide wheel.

[0006] In one possible implementation, the lifting device includes a crossbar and a hook. The crossbar is positioned below the crossbeam along the first direction. A first connector and a second connector are fixedly connected to the upper and lower surfaces of both ends of the crossbar, respectively. The two ends of the lifting rope are fixedly connected to the two first connectors on the upper surface of the crossbar, respectively. The hook is connected to the two second connectors on the lower surface of the crossbar via a rope, and the hook is used to connect the building material to be lifted.

[0007] In one possible implementation, the crossbeam includes two side plates, which are fixedly mounted at intervals on top of the two vertical beams, and the mounting cavity is defined between the two side plates.

[0008] In one possible implementation, a rotating shaft is also included, wherein the middle portions of the first guide wheel and the second guide wheel are each provided with through holes, and the rotating shaft passes through the corresponding through holes, so that the first guide wheel and the second guide wheel are rotatably disposed within the mounting cavity.

[0009] In one possible implementation, the guide includes a connecting frame and a guide post. The connecting frame is threaded to the output shaft of the power component, and two spaced connecting pieces are fixed to the upper end of the connecting frame, defining a connection position between the two connecting pieces. The guide post passes through the connection position in a first direction and is fixedly connected to the connecting pieces. The lifting rope passes through the connection position and goes around the guide post.

[0010] In one possible implementation, a brake element is also included, which is located on the outside of the caster and connected to the drive shaft of the caster, for limiting the rotation of the drive shaft to achieve braking of the caster.

[0011] In one possible implementation, a reinforcing strip is also included, which is disposed below the crossbeam and whose two ends are respectively fixedly connected to the two vertical beams.

[0012] The technical solutions provided in this application have the following advantages compared with the prior art: By installing a first guide wheel and a second guide wheel at intervals within the mounting cavity of the crossbeam, and then connecting both ends of the lifting rope to both ends of the lifting device, the lifting rope is sequentially wound around the first guide wheel, the guide member, and the second guide wheel. This allows the power component to drive the lifting of the guide member, thereby transmitting power to the lifting rope to tighten or release it, thus achieving the purpose of lifting building materials. In other words, this lifting device can precisely guide the movement trajectory of the lifting rope, avoiding the problems of easy tangling and deviation of the lifting rope in traditional small cranes, and reducing the interruption of lifting operations due to rope failure. At the same time, casters are installed at the bottom of the vertical beam to improve the overall flexibility and compensate for the lack of maneuverability of small cranes. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a hoisting device for building construction according to this utility model; Figure 2 This is a structural schematic diagram of the lifting component in a lifting device for building construction according to this utility model; Figure 3 This is a schematic diagram of the lifting device in a construction hoisting apparatus according to the present invention; Figure 4 This is a structural schematic diagram of the power component and guide component in a hoisting device for building construction according to this utility model.

[0014] Icon labels: 10. Lifting frame; 11. Vertical beam; 12. Horizontal beam; 20. Lifting device; 21. Horizontal bar; 22. Hook; 23. First connector; 24. Second connector; 30. Traction assembly; 31. Lifting rope; 32. Third guide wheel; 33. Power component; 34. Guide component; 341. Connecting frame; 342. Connecting piece; 343. Guide column; 35. First guide wheel; 36. Second guide wheel; 37. Rotating shaft; A. Mounting cavity; B. Connection position; X. First direction; Y. Second direction. Detailed Implementation

[0015] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0016] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0017] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0018] In this embodiment, the first and second perpendicular directions are defined to facilitate the description of the positional relationship between components. Specifically, the vertical beam can be used as a reference, the first direction refers to the width direction of the vertical beam, and the second direction is the length direction of the vertical beam.

[0019] like Figures 1 to 4As shown in the figure, a hoisting device for construction work according to an embodiment of the present invention includes a hoisting frame 10, a lifting device 20, and a traction assembly 30. The hoisting frame 10 includes a horizontal beam 12 and two vertical beams 11. The two vertical beams 11 are spaced apart in a first direction X and extend along a second direction Y. Both vertical beams 11 are equipped with casters at their bottoms. The horizontal beam 12 is positioned between the two vertical beams 11 along the first direction X, with both ends of the horizontal beam 12 fixedly connected to the tops of the two vertical beams 11. The horizontal beam 12 has a mounting cavity A. The lifting device 20 is located below the horizontal beam 12 and can be raised and lowered along the second direction Y. The traction assembly 30 includes a lifting rope 31, a power component 33, a first guide wheel 35, and a second guide wheel 36. The first guide wheel 35 and the second guide wheel 36 are spaced apart in the mounting cavity A and can rotate relative to the crossbeam 12. The power component 33 is fixed on one of the vertical beams 11, and the output shaft of the power component 33 is connected to a guide component 34. The guide component 34 can rise and fall synchronously with the output shaft of the power component 33 along the second direction Y. The two ends of the lifting rope 31 are respectively connected to the two ends of the lifting device 20, and the lifting rope 31 passes through the first guide wheel 35, the guide component 34, and the second guide wheel 36 in sequence.

[0020] In practical applications, when it is necessary to lift an item, the power component 33 (such as a motor, hydraulic rod, etc.) is activated, and its output shaft drives the guide component 34 to move downward along the second direction Y. Since the lifting rope 31 passes through the first guide wheel 35, the guide component 34, and the second guide wheel 36 in sequence, and the two ends of the lifting rope 31 are respectively connected to the two ends of the lifting device 20, the downward movement of the guide component 34 will pull the lifting rope 31 to move synchronously. At this time, the lifting rope 31 is tightened. Through the steering guidance of the first guide wheel 35 and the second guide wheel 36, the upward pulling force of the guide component 34 is converted into an upward lifting force on the lifting device 20, thereby driving the lifting device 20 to rise along the second direction Y, thus lifting the item suspended on the lifting device 20 upward. When it is necessary to lower the item, the power component 33 drives the guide component 34 to move upward along the second direction Y, so that the lifting rope 31 is released. Then, under the action of the lifting device 20 and the weight of the item, the lifting device 20 descends along the second direction Y until the item is placed at the target position.

[0021] The lifting device for construction in this embodiment uses a first guide wheel 35 and a second guide wheel 36 spaced apart in the mounting cavity A of the crossbeam 12. The two ends of the lifting rope 31 are then connected to the two ends of the lifting device 20. The lifting rope 31 is then wound sequentially around the first guide wheel 35, the guide member 34, and the second guide wheel 36. This allows the power member 33 to drive the guide member 34 to rise and fall, thereby transmitting power to the lifting rope 31 to tighten or release it, thus achieving the purpose of lifting building materials. In other words, this lifting device can precisely guide the movement trajectory of the lifting rope 31, avoiding the problems of easy tangling and deviation of the lifting rope 31 in traditional small cranes, and reducing lifting interruptions caused by rope failure. At the same time, casters are installed at the bottom of the vertical beam 11 to improve overall flexibility and compensate for the mobility deficiencies of small cranes.

[0022] In one possible implementation, the traction assembly 30 further includes a third guide wheel 32, which is rotatably connected to one end of the crossbeam 12 and located on the same side as the first guide wheel 35, with the third guide wheel 32 positioned above the first guide wheel 35. The lifting rope 31 is sequentially wound around the first guide wheel 35, the third guide wheel 32, the guide member 34, and the second guide wheel 36.

[0023] In one possible implementation, the lifting device 20 includes a crossbar 21 and a hook 22. The crossbar 21 is disposed below the crossbeam 12 along the first direction X. The upper and lower surfaces of both ends of the crossbar 21 are respectively fixedly connected to a first connector 23 and a second connector 24. The two ends of the lifting rope 31 are respectively fixedly connected to the two first connectors 23 on the upper surface of the crossbar 21. The hook 22 is connected to the two second connectors 24 on the lower surface of the crossbar 21 by a rope, and the hook 22 is used to connect the building material to be lifted.

[0024] In one possible implementation, the crossbeam 12 includes two side plates, which are fixedly installed at intervals on the tops of the two vertical beams 11, and the two side plates define a mounting cavity A. That is, the mounting cavity A, formed by the two side plates, is a semi-enclosed space that can enclose the first guide wheel 35 and the second guide wheel 36. This effectively prevents dust, sand, and splashes from the construction environment from eroding or colliding with the guide wheels, reducing jamming and wear caused by external interference, and extending their service life. Furthermore, the spacing between the two side plates can be precisely designed according to the size of the guide wheels, allowing the guide wheels to be stably installed within the mounting cavity A. The spacing between the two guide wheels is also easier to control (positioned along the length of the side plates), ensuring the regularity of the lifting rope 31's winding path, preventing the lifting rope 31 from shifting or tangling, and ensuring the stability of the power transmission of the traction assembly 30.

[0025] In one possible implementation, a rotating shaft 37 is also included. The middle portions of the first guide wheel 35 and the second guide wheel 36 each have through holes. The rotating shaft 37 passes through the corresponding through holes, allowing the first guide wheel 35 and the second guide wheel 36 to be rotatably mounted within the mounting cavity A. That is, the through holes in the middle portions of the first guide wheel 35 and the second guide wheel 36 cooperate with the rotating shaft 37, allowing the guide wheels to be mounted within the mounting cavity A with the rotating shaft 37 as a fixed rotation axis. This prevents excessive swaying between the wheel body and the rotating shaft 37, ensuring that the lifting rope 31 remains in contact with the wheel surface of the guide wheel during winding, ensuring a stable tension direction (=), and further improving the smoothness of the lifting device 20.

[0026] In one possible implementation, the guide member 34 includes a connecting frame 341 and a guide post 343. The connecting frame 341 is threadedly connected to the output shaft of the power member 33, and two spaced connecting pieces 342 are fixed to the upper end of the connecting frame 341, defining a connection position B between the two connecting pieces 342. The guide post 343 passes through the connection position B along the first direction X and is fixedly connected to the connecting pieces 342. The lifting rope 31 passes through the connection position B and wraps around the guide post 343. That is, by using the two spaced connecting pieces 342 to define the connection position B, and by fixing the guide post 343 through the connection position B along the first direction X, the lifting rope 31 can only wrap around the outer periphery of the guide post 343 after passing through the connection position B. At this time, the barriers formed by the connecting pieces 342 on both sides can prevent the lifting rope 31 from deviating along the first direction X, and the guide post 343 restricts the movement of the lifting rope 31 along the second direction Y. The two work together to strictly constrain the movement trajectory of the lifting rope 31 within a preset path. This constraint completely avoids the risk of the lifting rope 31 detaching from the guide post 343, rubbing against or tangling with other components during the pulling process, ensuring that the force transmission of the traction assembly 30 is always smooth.

[0027] In one possible implementation, a brake is also included. The brake is located on the outside of the caster and connected to the drive shaft of the caster. It restricts the rotation of the drive shaft to brake the caster. Thus, after the brake locks the drive shaft, the lifting frame 10 is firmly fixed in the working position, preventing the caster from rolling due to force and causing displacement of the device. This avoids tilting of the lifting device 20 and swaying of the object, ensuring positional stability during the lifting process. It should be noted that the brake can be an existing electric brake; its specific structure and control method are common knowledge to those skilled in the art and will not be described in detail here.

[0028] In one possible implementation, a reinforcing strip is also included, located below the crossbeam 12, with both ends of the reinforcing strip fixedly connected to the two vertical beams 11. This connects the two vertical beams 11 to form a whole, thereby improving the overall structural strength of the crane.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A lifting device for construction, characterized in that, include: A lifting frame includes a crossbeam and two vertical beams. The two vertical beams are spaced apart in a first direction and extend along a second direction. Both vertical beams are provided with casters at their bottoms. The crossbeam is located between the two vertical beams along the first direction. Both ends of the crossbeam are fixedly connected to the tops of the two vertical beams, and the crossbeam has a mounting cavity. The first direction is perpendicular to the second direction. A lifting device, which is located below the crossbeam and can be raised and lowered in the second direction; The traction assembly includes a lifting rope, a power component, a first guide wheel, and a second guide wheel. The first guide wheel and the second guide wheel are spaced apart in the mounting cavity and can rotate relative to the crossbeam. The power component is fixed on one of the vertical beams, and the output shaft of the power component is connected to a guide component. The guide component can rise and fall synchronously with the output shaft of the power component in the second direction. The two ends of the lifting rope are respectively connected to the two ends of the lifting device, and the lifting rope passes sequentially around the first guide wheel, the guide component, and the second guide wheel.

2. The hoisting device for building construction according to claim 1, characterized in that, The traction assembly also includes a third guide wheel, which is rotatably connected to one end of the crossbeam and located on the same side as the first guide wheel, and the third guide wheel is located above the first guide wheel. The lifting rope is sequentially wound around the first guide wheel, the third guide wheel, the guide member, and the second guide wheel.

3. The hoisting device for building construction according to claim 1, characterized in that, The lifting device includes a horizontal bar and a hook. The horizontal bar is located below the crossbeam along the first direction. A first connector and a second connector are fixedly connected to the upper and lower surfaces of both ends of the horizontal bar, respectively. The two ends of the lifting rope are fixedly connected to the two first connectors on the upper surface of the horizontal bar, respectively. The hook is connected to the two second connectors on the lower surface of the horizontal bar via a rope, and the hook is used to connect the building material to be lifted.

4. The hoisting device for building construction according to claim 1, characterized in that, The crossbeam includes two side plates, which are fixedly mounted at intervals on the top of the two vertical beams, and the mounting cavity is defined between the two side plates.

5. The hoisting device for building construction according to claim 4, characterized in that, It also includes a rotating shaft, and both the middle of the first guide wheel and the middle of the second guide wheel are provided with through holes. The rotating shaft passes through the corresponding through holes so that the first guide wheel and the second guide wheel are rotatably disposed in the mounting cavity.

6. The hoisting device for building construction according to claim 1, characterized in that, The guide includes a connecting frame and a guide post. The connecting frame is threaded to the output shaft of the power component, and two spaced connecting pieces are fixed at the upper end of the connecting frame. A connection position is defined between the two connecting pieces. The guide post passes through the connection position in a first direction and is fixedly connected to the connecting pieces. The lifting rope passes through the connection position and goes around the guide post.

7. The hoisting device for building construction according to claim 1, characterized in that, It also includes a brake component, which is located on the outside of the caster and connected to the drive shaft of the caster, and is used to limit the rotation of the drive shaft in order to brake the caster.

8. The hoisting device for building construction according to claim 1, characterized in that, It also includes a reinforcing strip, which is located below the crossbeam and whose two ends are fixedly connected to the two vertical beams respectively.

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