A building construction hoisting device

Abstract

The application belongs to the technical field of lifting equipment, and discloses a building construction lifting device, which comprises a base, winding components are arranged on the two sides of the base, an installation frame is arranged on the top of the base, and a load frame is movably sleeved on the inner surface of the installation frame. The application is characterized in that the limiting frame and the limiting plate are continuously lubricated when being lifted, and the top plate and the positioning top rod fixedly arranged above are matched, so that the energy storage mechanism is automatically extruded again when the load frame moves to the top, secondary lubrication is realized, the lubrication effect at the limiting position during actual lifting is greatly improved, the lubrication effect is further improved through twice lubrication of the upper and lower positions before and after lifting in the construction lifting condition, the wear of the limiting frame and the limiting plate caused by the sliding plate during lifting is reduced, noise is reduced, the lifting shaking problem caused by the increase of the gap due to wear is avoided, the material lifting is stable and reliable, the service life of the sliding position parts is long, and the use effect is good.

Description

Technical Field

[0001] This invention belongs to the field of lifting equipment technology, specifically a building construction lifting device. Background Technology

[0002] In the construction industry, it is often necessary to lift and lower building materials between floors to meet construction needs. For high-rise buildings, materials can be lifted using specialized cranes, while for mid- to low-rise buildings, materials are often lifted and transported using hydraulic lifting devices.

[0003] In existing construction lifting devices, steel rope winding is typically used to lift the material carrier frame. However, when using steel rope winding to move the frame up and down, the frame is prone to swaying, affecting lifting stability. Currently, a fixed limiting frame is added in conjunction with a sliding plate on the side of the frame to achieve limiting sliding. However, with the friction from the up and down movement, the sliding plate wears down in the limiting frame, reducing the wall thickness of the limiting frame and widening the gap between the sliding plate and the limiting frame. This causes the sliding plate to wobble in the wear gap when sliding in the limiting frame, resulting in swaying during actual lifting. The actual effect of stable lifting is not obvious, and the friction noise during lifting is also high. With the increase of use, the lifting stability decreases rapidly, resulting in poor performance.

[0004] Furthermore, in existing construction lifting devices, when materials are lifted to the target height, they are still located outside the building wall during the vertical lifting process. For construction workers, when unloading the lifted materials, they usually need to manually load and unload them towards the side of the lifting device closest to the building wall. This close proximity to the outside of the building during loading and unloading poses a safety risk. Additionally, for safety reasons, loading and unloading materials from the lifting device towards the outside of the building reduces efficiency and results in poor performance. Summary of the Invention

[0005] The purpose of this invention is to provide a building construction lifting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a building construction lifting device, comprising a base, with winding components on both sides of the base, an installation frame on the top of the base, a carrier frame movably fitted onto the inner surface of the installation frame, a height adjustment mechanism fixedly installed on the top surface of the base, an assembly mechanism fixedly installed on the top surface of the height adjustment mechanism, a sliding plate fixedly connected to the side of the installation frame, a steel rope fixedly connected to the top of the sliding plate, the steel rope driving the other end to pass around the top assembly mechanism and wind around the winding components, a limiting frame fixedly connected to the top of the base, a limiting plate movably fitted onto the side of the limiting frame, the upper end of the limiting plate being fixedly connected to the assembly mechanism, the outer surface of the sliding plate movably fitted onto the limiting frame, transverse grooves provided on both sides of the sliding plate, a curved tube fixedly connected to one side of the sliding plate, a sleeve rod fixedly connected to the front of the carrier frame, the movable end of the sleeve rod fitted into one end of the curved tube, and the outer surface of the curved tube fixedly fitted with... The assembly mechanism includes an installation ring, a first spring fixedly connected between the installation ring and the frame, an energy storage mechanism fixedly connected to the top of the outer surface of the curved tube, a top plate fixedly connected to the side of the assembly mechanism, a positioning rod fixedly connected to the bottom of the top plate, a fixed ring fixedly sleeved in the other end of the curved tube, a movable plug movably sleeved in the other end of the curved tube, a second spring fixedly connected between the movable plug and the slide plate, a sealing rod fixedly connected to the side of the movable plug, a sleeve hole opened on the side of the slide plate, the inner surface of the sleeve hole movably sleeved with the sealing rod, a through hole opened on the top of the outer surface of the sealing rod, a connecting cavity and an oil outlet hole opened on the inside and side of the slide plate, a storage sleeve fixedly connected to the top of the slide plate, a top hole opened on the top of the slide plate, the upper and lower ends of the top hole connected to the storage sleeve and the connecting cavity respectively, the inner and outer ends of the oil outlet hole connected to the connecting cavity and the transverse groove respectively, and a hydraulic mechanism provided on the side of the base.

[0007] Preferably, the socket is connected to the communicating cavity, and the socket is located directly below the top hole.

[0008] Preferably, the horizontal grooves are evenly spaced and distributed on both sides of the slide plate, the side of the limiting frame is provided with a side groove, the inner surface of the side groove is movably sleeved with the limiting plate, and the inner side of the limiting frame and the inner side of the limiting plate are located on the same horizontal plane.

[0009] Preferably, the energy storage mechanism includes a short tube, a storage cylinder, a No. 3 spring, and a movable plate. The short tube is fixedly connected to the top of the curved tube, the storage cylinder is fixedly connected to the top of the short tube, the No. 3 spring is fixedly connected to the inside of the storage cylinder, and the movable plate is fixedly connected to the top of the No. 3 spring and movably sleeved inside the storage cylinder. The storage cylinder is located directly below the positioning top rod, and the diameter of the small hole on the top surface of the storage cylinder is larger than the diameter of the positioning top rod.

[0010] Preferably, the top surface and the interior of the base are respectively provided with a circular hole and an annular cavity, and the back of the base is provided with a side opening. The annular cavity is connected to both the circular hole and the side opening, and the circular hole is connected to the height adjustment mechanism.

[0011] Preferably, the height adjustment mechanism includes a fixed tube, a support rod, and a movable head. The fixed tube is fixedly connected to the top surface of the base and communicates with the circular hole. The support rod and the movable head are both movably sleeved in the fixed tube, and the movable head is fixedly connected to the bottom surface of the support rod.

[0012] Preferably, the assembly mechanism includes an assembly plate, an assembly groove, and a pulley. The assembly plate is fixedly connected to the top surface of the support rod. The assembly groove is opened at the top of the assembly plate. The pulley is rotatably installed in the assembly groove. The inner surface of the pulley is in contact with the steel rope. The bottom surface of the assembly plate is fixedly connected to the limiting plate. The assembly plate is fixedly connected to the end face of the top plate.

[0013] Preferably, the hydraulic mechanism includes a connecting sleeve, a fixed plate, an oil pump, an oil tank, and an intermediate pipe. The connecting sleeve is fixedly connected to the back of the base and communicates with the side opening. The fixed plate is fixedly connected to the side of the base. The oil pump and the oil tank are both installed on the top surface of the fixed plate. The intermediate pipe is fixedly connected between the oil pump and the connecting sleeve.

[0014] Preferably, the cross-section of the communicating cavity is "T" shaped, and the horizontal grooves of the oil outlet holes correspond one-to-one.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention utilizes a transverse groove on the side of the slide plate, along with a connecting cavity and oil outlet in the slide plate. When the energy storage mechanism is pressurized, the hydraulic oil in the storage cylinder is further squeezed into the curved tube, increasing the internal hydraulic pressure. This increased hydraulic pressure causes the sealing rod fitted to the side of the slide plate to move laterally. When the through hole on the sealing rod moves below the top hole, the connecting cavity inside the slide plate and the storage sleeve are connected. Combined with the lubricating oil flow effect, the oil gradually flows out into the transverse groove on the side of the slide plate, achieving initial lubrication before lifting. This lubricates the limiting frame and limiting plate during continuous lifting. Furthermore, the fixed top plate and positioning rod ensure that when the frame moves to the top, the energy storage mechanism is automatically squeezed again, achieving secondary lubrication. This significantly improves the lubrication effect at the limiting position during actual lifting. For construction lifting scenarios, the double lubrication at the upper and lower points before and after lifting further enhances the lubrication effect, reducing wear on the limiting frame and limiting plate during lifting. This reduces noise and avoids lifting swaying caused by increased gaps due to wear. Material lifting is stable and reliable, and the sliding parts have a long service life, resulting in excellent performance.

[0017] 2. This invention utilizes a carrier frame movably mounted on an installation frame, with a sleeve rod on the front of the carrier frame connected to the other end of a curved tube. When actually lifted to the top, as the positioning top rod compresses the energy storage mechanism, secondary lubrication is achieved. As the oil pressure in the curved tube continues to rise, the sleeve rod is pushed outward under hydraulic thrust. This causes the carrier frame, connected to the curved tube via a first spring, to move laterally along with the sleeve rod. Upon reaching the top, it automatically moves laterally from the outside of the building wall into the building body, thereby enabling the direct transport of materials out of the lifting device. This allows for safe and efficient loading and unloading operations for workers located away from the building wall, resulting in high safety and convenient operation.

[0018] 3. This invention utilizes a hydraulic pump to deliver hydraulic oil, enabling top height adjustment of the height adjustment mechanism. Combined with the winding and lifting action of the winding component, this sequentially completes the adjustment at the highest point of the device and the lifting of the frame. The height can be adjusted according to actual needs, making the overall height of the device adjustable, saving space. Furthermore, it ensures that the adjusted lifting height is always the maximum height required for lifting, guaranteeing that the frame is lifted directly to the highest point of the lifting device each time. This avoids situations where the frame hangs at a designated height when lifting to other target heights, and eliminates the need for braking the frame in the middle of the lifting device. It reduces the need for additional intermediate braking components, as the braking control after height increase is achieved from the top, optimizing the control process of the lifting device. Simultaneously, by enabling control of the highest point of the device according to actual requirements, it ensures secondary lubrication and automatic material pushing for lifting at different heights, greatly expanding the application range in construction lifting and demonstrating excellent performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a top view of the base of the present invention;

[0021] Figure 3 This is a cross-sectional schematic diagram of the slide plate and curved tube of the present invention;

[0022] Figure 4 This is an exploded view of the sleeve and curved tube of the present invention;

[0023] Figure 5 This is an exploded schematic diagram of the curved tube of the present invention;

[0024] Figure 6 This is a cross-sectional schematic diagram of the skateboard of the present invention;

[0025] Figure 7 This is a cross-sectional schematic diagram of the base of the present invention;

[0026] Figure 8This is a schematic diagram of the assembly mechanism of the present invention;

[0027] Figure 9 This is an exploded view of the height adjustment mechanism of the present invention;

[0028] Figure 10 This is an exploded view of the limiting frame and limiting plate of the present invention.

[0029] In the diagram: 1. Base; 2. Rewinding component; 3. Mounting frame; 4. Carrier frame; 5. Height adjustment mechanism; 51. Fixing tube; 52. Support rod; 53. Moving head; 6. Assembly mechanism; 61. Assembly plate; 62. Assembly slot; 63. Pulley; 7. Slide plate; 8. Steel rope; 9. Top plate; 10. Limiting frame; 11. Limiting plate; 12. Side slot; 13. Curved tube; 14. Sleeve rod; 15. Mounting ring; 16. Spring No. 1; 17. Energy storage mechanism; 171. Short tube; 172. Storage Cylinder; 173, No. 3 spring; 174, movable plate; 18, transverse groove; 19, fixed ring; 20, movable plug; 21, No. 2 spring; 22, sealing rod; 23, through hole; 24, connecting cavity; 25, oil outlet; 26, top hole; 27, sleeve hole; 28, storage sleeve; 29, positioning top rod; 30, annular cavity; 31, round hole; 32, side opening; 33, hydraulic mechanism; 331, connecting sleeve; 332, fixed plate; 333, oil pump; 334, oil tank; 335, intermediate pipe. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1 to 10As shown, this embodiment of the invention provides a building construction lifting device, including a base 1, with winding components 2 on both sides of the base 1, a mounting frame 3 on the top of the base 1, a carrier frame 4 movably fitted onto the inner surface of the mounting frame 3, a height adjustment mechanism 5 fixedly installed on the top surface of the base 1, an assembly mechanism 6 fixedly installed on the top surface of the height adjustment mechanism 5, a sliding plate 7 fixedly connected to the side of the mounting frame 3, and a steel rope 8 fixedly connected to the top of the sliding plate 7. The steel rope 8 drives the other end to pass around the top assembly mechanism 6 and wind around the winding components 2. In the middle, the top of the base 1 is fixedly connected to the limiting frame 10, the side of the limiting frame 10 is movably fitted with the limiting plate 11, the upper end of the limiting plate 11 is fixedly connected to the assembly mechanism 6, the outer surface of the slide plate 7 is movably fitted in the limiting frame 10, both sides of the slide plate 7 are provided with transverse grooves 18, one side of the slide plate 7 is fixedly connected to the curved tube 13, the front of the carrier frame 4 is fixedly connected to the sleeve rod 14, the movable end of the sleeve rod 14 is fitted in one end of the curved tube 13, the outer surface of the curved tube 13 is fixedly fitted with the mounting ring 15, the mounting ring 15 and the carrier frame 4 are connected together. A first spring 16 is fixedly connected between the two. An energy storage mechanism 17 is fixedly connected to the top of the outer surface of the curved tube 13. A top plate 9 is fixedly connected to the side of the assembly mechanism 6. A positioning rod 29 is fixedly connected to the bottom surface of the top plate 9. A fixing ring 19 is fixedly sleeved in the other end of the curved tube 13. A movable plug 20 is movably sleeved in the other end of the curved tube 13. A second spring 21 located in the curved tube 13 is fixedly connected between the movable plug 20 and the slide plate 7. A sealing rod 22 is fixedly connected to the side of the movable plug 20. A sealing rod 22 is opened on the side of the slide plate 7. The inner surface of the socket 27 is movably sleeved with the sealing rod 22. The top of the outer surface of the sealing rod 22 is provided with a through hole 23. The inside and side of the slide plate 7 are respectively provided with a connecting cavity 24 and an oil outlet hole 25. The top of the slide plate 7 is fixedly connected to a storage sleeve 28. The top of the slide plate 7 is provided with a top hole 26. The upper and lower ends of the top hole 26 are respectively connected to the storage sleeve 28 and the connecting cavity 24. The inner and outer ends of the oil outlet hole 25 are respectively connected to the connecting cavity 24 and the transverse groove 18. The side of the base 1 is provided with a hydraulic mechanism 33.

[0032] First embodiment: After the lifting device is set up, press down along the top of the energy storage mechanism 17, so that the movable plate 174 in the energy storage mechanism 17 compresses the third spring 173 downward, and the hydraulic oil in the storage cylinder 172 is introduced into the curved pipe 13, so that the hydraulic pressure in the curved pipe 13 rises. As the hydraulic pressure rises, it pushes the movable plug 20 inside one end of the curved pipe 13, so that the movable plug 20 drives the sealing rod 22 to move along the sleeve hole 27 on the side of the slide plate 7. As the second spring 21 is compressed, the through hole 23 at the top of the sealing rod 22 moves laterally into the interior of the slide plate 7, and the top of the through hole 23 communicates with the top hole 26. The lubricating oil in the storage sleeve 28 flows downward along the top hole 26 and the through hole 23 to the connecting cavity 24 under the influence of gravity, and overflows into the transverse groove 18 on the side of the slide plate 7 through the connecting cavity 24 and the oil outlet hole 25. After the debugging is completed, the operation of the energy storage mechanism 17 is canceled. After resetting, the material is placed in the carrier frame 4, and the winding component 2 is started. As the winding component 2 winds up the steel rope 8, the installation... The frame 3, carrying the carrier frame 4, is lifted upwards. Simultaneously, the slide plate 7 slides along the inner sides of the limiting frame 10 and the limiting plate 11. During the sliding process, the lubricating oil in the transverse groove 18 fully adheres to the inner sides of the limiting frame 10 and the limiting plate 11, resulting in low sliding friction and low lifting noise. As it is gradually lifted to the top, the top of the energy storage mechanism 17 moves closer to the positioning rod 29, causing the positioning rod 29 to be inserted along the top of the storage cylinder 172 and press the movable plate 174 again. This causes the oil pressure in the curved tube 13 to rise, and the sealing rod 22 moves laterally again, connecting the through hole 23 and the top hole 26. As the lubricating oil flows out, secondary lubrication is completed. At the same time, after the sealing rod 22 moves to its limit position, the oil pressure in the curved tube 13 continues to rise as the energy storage mechanism 17 continues to press, gradually pushing the sleeve rod 14 connected to the other end of the curved tube 13 to move laterally. This causes the sleeve rod 14 to carry the carrier frame 4 laterally along the other end of the curved tube 13, pushing the carrier frame 4 from the outside of the building wall into the building body, allowing workers to unload the materials.

[0033] First, by opening a transverse groove 18 on the side of the slide plate 7, and cooperating with the connecting cavity 24 and oil outlet 25 in the slide plate 7, the hydraulic oil in the storage cylinder 172 is further squeezed into the curved tube 13 when the energy storage mechanism 17 is pressurized, which increases the hydraulic pressure inside the curved tube 13. The increased hydraulic pressure causes the sealing rod 22 sleeved on the side of the slide plate 7 to move laterally, so that when the through hole 23 on the sealing rod 22 moves below the top hole 26, the connecting cavity 24 and the storage sleeve 28 inside the slide plate 7 are connected. With the lubricating oil flow effect, it gradually flows out into the transverse groove 18 on the side of the slide plate 7, achieving initial lubrication before lifting, so that the limit frame is continuously lifted. The limit plate 10 and the limiting plate 11 are lubricated and lifted, and together with the top plate 9 and the positioning rod 29 fixedly installed above, the energy storage mechanism 17 is automatically squeezed again when the frame 4 moves to the top, realizing secondary lubrication. This greatly improves the lubrication effect at the limit position during actual lifting. For construction lifting, the lubrication effect is further improved by lubricating the upper and lower parts before and after lifting, reducing the wear of the sliding plate 7 on the limit frame 10 and the limiting plate 11 during lifting. This reduces noise and avoids lifting swaying caused by increased gaps due to wear. The material lifting is stable and reliable, the sliding part has a long service life, and the use effect is good.

[0034] Furthermore, by utilizing the carrier frame 4, which is movably installed in the mounting frame 3, and with the sleeve rod 14 on the front of the carrier frame 4 connected to the other end of the curved tube 13, when actually lifted to the top, as the positioning top rod 29 compresses the energy storage mechanism 17, after secondary lubrication, as the oil pressure in the curved tube 13 continues to rise, the sleeve rod 14 is pushed outward under hydraulic thrust. This causes the carrier frame 4, which is connected to the curved tube 13 via the first spring 16, to move laterally with the sleeve rod 14. When lifted to the top, it automatically moves laterally from the outside of the building wall into the building body, thereby realizing the direct transport of materials out of the lifting device. This allows for safe and efficient loading and unloading operations for workers far from the building wall, resulting in high safety and convenient operation.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 10As shown, the socket 27 is connected to the connecting cavity 24. The socket 27 is located directly below the top hole 26. The horizontal grooves 18 are evenly distributed on both sides of the slide plate 7. The side of the limiting frame 10 is provided with a side groove 12. The inner surface of the side groove 12 is movably connected to the limiting plate 11. The inner side of the limiting frame 10 and the inner side of the limiting plate 11 are on the same horizontal plane. The energy storage mechanism 17 includes a short tube 171, a storage cylinder 172, a No. 3 spring 173, and a movable plate 174. The short tube 171 is fixed. The top of the curved tube 13 is connected to the storage cylinder 172, which is fixedly connected to the top of the short tube 171. The third spring 173 is fixedly connected to the inside of the storage cylinder 172. The movable plate 174 is fixedly connected to the top of the third spring 173 and is movably sleeved inside the storage cylinder 172. The storage cylinder 172 is located directly below the positioning top rod 29. The diameter of the small hole on the top surface of the storage cylinder 172 is larger than the diameter of the positioning top rod 29. The cross section of the connecting cavity 24 is "T" shaped, and the oil outlet 25 and the horizontal groove 18 correspond one-to-one.

[0036] During use, by controlling the positions of the connecting cavity 24 and the top hole 26, the through hole 23 on the sealing rod 22 after horizontal movement is ensured to be below and connected to the top hole 26, thereby releasing the lubricating oil in the storage sleeve 28. The lubricating oil is introduced into the transverse groove 18 through the oil outlet hole 25 connected to the connecting cavity 24. The lubricating oil stored in the transverse groove 18 lubricates the limiting frame 10 and the limiting plate 11 during sliding. When the energy storage mechanism 17 is pressed at the top, the oil pressure of the energy storage mechanism 17 is squeezed out to release the hydraulic thrust. The increased hydraulic pressure in the curved tube 13 is used to control the movement of the sealing rod 22. With the help of the positioning rod 29 at the top, a second enhanced lubrication can be performed when it is lifted to the top. After the movement of the movable plug 20 at one end of the sealing rod 22 is limited, the hydraulic pressure is applied to the sleeve rod 14 to ensure that the carrier frame 4 is automatically pushed out when the top is lifted. The corresponding oil outlet holes 25 ensure that there are enough oil outlet holes to avoid complete blockage.

[0037] like Figure 1 , Figure 2 , Figure 7 , Figure 8 and Figure 9As shown, the top surface and interior of the base 1 are respectively provided with a circular hole 31 and an annular cavity 30. The back of the base 1 is provided with a side opening 32. The annular cavity 30 is connected to both the circular hole 31 and the side opening 32. The circular hole 31 is connected to the height adjustment mechanism 5. The height adjustment mechanism 5 includes a fixed tube 51, a support rod 52, and a movable head 53. The fixed tube 51 is fixedly connected to the top surface of the base 1 and is connected to the circular hole 31. The support rod 52 and the movable head 53 are both movably sleeved in the fixed tube 51. The movable head 53 is fixedly connected to the bottom surface of the support rod 52. The assembly mechanism 6 includes an assembly plate 61, an assembly groove 62, and a pulley 63. The assembly plate 61 is fixedly connected to the top surface of the support rod 52, and the assembly groove 62 is fixedly connected to the bottom surface of the support rod 52. 2 is located on the top of the assembly plate 61. The pulley 63 is rotatably installed in the assembly groove 62. The inner surface of the pulley 63 is in contact with the steel rope 8. The bottom surface of the assembly plate 61 is fixedly connected to the limiting plate 11. The assembly plate 61 is fixedly connected to the end face of the top plate 9. The hydraulic mechanism 33 includes a connecting sleeve 331, a fixing plate 332, an oil pump 333, an oil tank 334, and an intermediate pipe 335. The connecting sleeve 331 is fixedly connected to the back of the base 1 and communicates with the side opening 32. The fixing plate 332 is fixedly connected to the side of the base 1. The oil pump 333 and the oil tank 334 are both installed on the top surface of the fixing plate 332. The intermediate pipe 335 is fixedly connected between the oil pump 333 and the connecting sleeve 331.

[0038] During use, each set of circular holes 31 is connected through the annular cavity 30, facilitating the distribution of hydraulic oil to each set of height adjustment mechanisms 5. The hydraulic mechanism 33 provides the hydraulic driving force for height adjustment, and the load of the lifted goods is applied to the support rod 52 through the steel rope 8 passing through the top assembly mechanism 6. When the pump is turned off, the hydraulic oil filled into the fixed pipe 51 utilizes the incompressibility of the hydraulic oil, combined with the self-weight of the top, to maintain stability after height adjustment. The pulley 63 in the assembly mechanism 6 passes through the assembly groove 62. The fixed shaft is movably connected to ensure the stable rotation of the pulley 63, maintain the support and winding sliding of the steel rope 8, and utilize the limiting plate 11 on the bottom surface of the assembly plate 61 so that the slide plate 7 has a stable sliding limit under height adjustment. When the lifting height is high, the limiting plate 11 moves upward from the top of the limiting frame 10, ensuring that the slide plate 7 moves up along the limiting frame 10 first, and can continue to move up along the limiting plate 11 afterwards, ensuring a good limiting effect when lifting in different height ranges, and avoiding swaying when the steel rope is wound up or down.

[0039] Second embodiment: When lifting for different target heights, the winding component 2 is loosened, and the hydraulic mechanism 33 is activated. The oil pump 333 in the hydraulic mechanism 33 draws hydraulic oil from the oil tank 334 and pumps it to the intermediate pipe 335. The oil pump 333 and the oil tank 334 are conventionally arranged on the fixed plate 332 and are connected by an oil pipe (not shown in the figure). The hydraulic oil is delivered to the annular cavity 30 through the connecting sleeve 331 and the side port 32. Thus, the annular cavity 30 passes the input hydraulic oil through the round hole 31 into each set of height adjustment mechanisms 5. As the hydraulic oil in the height adjustment mechanism 5 increases, it pushes the support rod 52 to move upward, driving the assembly mechanism 6 to lift. As the assembly mechanism 6 is lifted, the assembly mechanism 6 drives the bottom limiting plate 11 to lift along the inside of the limiting frame 10 and to the target height, starting the lifting of the winding component 2 and the load frame 4.

[0040] First, by using the hydraulic pump of the hydraulic mechanism 33 to deliver hydraulic oil, the top height of the height adjustment mechanism 5 is adjusted. This, combined with the winding and lifting of the winding component 2, sequentially completes the adjustment at the highest point of the device and the lifting action of the frame. The height can be adjusted according to actual needs, making the overall height of the device adjustable and saving space. Furthermore, it ensures that the adjusted lifting height is always the maximum height during lifting, guaranteeing that the frame 4 is lifted directly to the highest point of the lifting device each time. This avoids the frame 4 suspending at a specified height when lifting to other target heights, and avoids the need for the frame 4 to stop in the middle of the lifting device, reducing the need for additional intermediate braking components. Limiting from the top allows for braking control after height increase, optimizing the control process of the lifting device. Simultaneously, by enabling control of the highest point of the device according to actual requirements, secondary lubrication and automatic material pushing can be achieved for lifting at different heights, greatly expanding the application range of building construction lifting and demonstrating excellent performance.

[0041] Working principle and usage process: During use, loosen the winding component 2, start the hydraulic mechanism 33, so that the oil pump 333 in the hydraulic mechanism 33 draws hydraulic oil from the oil tank 334 and pumps it to the intermediate pipe 335. The oil pump 333 and the oil tank 334 are conventionally arranged on the fixed plate 332 and are connected by an oil pipe (not shown in the figure). The hydraulic oil is delivered to the annular cavity 30 through the connecting sleeve 331 and the side port 32. Thus, the annular cavity 30 passes the input hydraulic oil through the round hole 31 into each set of height adjustment mechanisms 5. As the hydraulic oil in the height adjustment mechanism 5 increases, it pushes the support rod 52 to move upward, driving the assembly mechanism 6 to lift. As the assembly mechanism 6 is lifted, the assembly... Mechanism 6 drives the bottom limiting plate 11 to rise along the inside of the limiting frame 10 and to the target height, completing the highest point adjustment of the device; pressing down along the top of the energy storage mechanism 17 causes the movable plate 174 in the energy storage mechanism 17 to compress the third spring 173 downward, and causes the hydraulic oil in the storage cylinder 172 to be introduced into the curved tube 13, causing the hydraulic pressure in the curved tube 13 to rise. As the hydraulic pressure rises, it pushes the movable plug 20 inside one end of the curved tube 13, thereby causing the movable plug 20 to drive the sealing rod 22 to move along the socket 27 on the side of the slide plate 7. As the second spring 21 is compressed, the through hole 23 at the top of the sealing rod 22 moves laterally into the inside of the slide plate 7, and the top of the through hole 23 is aligned with the top of the slide plate 7. With hole 26 connected, the lubricating oil in storage sleeve 28 flows downwards under gravity along top hole 26 and through hole 23 to connecting cavity 24, and overflows through connecting cavity 24 and oil outlet hole 25 into transverse groove 18 on the side of slide plate 7. After debugging, the operation of energy storage mechanism 17 is canceled, and after resetting, the material is placed in carrier frame 4, and winding component 2 is started. As winding component 2 winds up steel rope 8, mounting frame 3 is lifted and moved upwards along carrier frame 4. At the same time, slide plate 7 slides along the inner side of limit frame 10 and limit plate 11. During the sliding process, the lubricating oil in transverse groove 18 fully adheres to the inner side of limit frame 10 and limit plate 11, resulting in low sliding friction and low lifting noise. When gradually lifted to the top, with the energy storage... The top of mechanism 17 moves closer to positioning rod 29, causing positioning rod 29 to fit along the top of storage cylinder 172 and press the movable plate 174 again. As the oil pressure in curved tube 13 increases, sealing rod 22 moves laterally again, connecting through hole 23 and top hole 26. As lubricating oil flows out, secondary lubrication is completed. At the same time, after sealing rod 22 moves to its limit position, as the energy storage mechanism 17 continues to press, the oil pressure in curved tube 13 continues to increase and gradually pushes the sleeve rod 14 connected to the other end of curved tube 13 to move laterally. This causes sleeve rod 14 to move laterally along the other end of curved tube 13 with the carrier frame 4, pushing the carrier frame 4 from the outside of the building wall into the building body, so that workers can unload the materials.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction lifting device, comprising a base (1), characterized in that: The base (1) has winding components (2) on both sides, a mounting frame (3) on the top, a carrier frame (4) movably fitted onto the inner surface of the mounting frame (3), a height adjustment mechanism (5) fixedly mounted on the top surface of the base (1), an assembly mechanism (6) fixedly mounted on the top surface of the height adjustment mechanism (5), a sliding plate (7) fixedly connected to the side of the mounting frame (3), a steel rope (8) fixedly connected to the top of the sliding plate (7), the steel rope (8) drives the other end to pass around the top assembly mechanism (6) and wind around the winding component (2), and a limit frame (10) fixedly connected to the top of the base (1). The side of the limiting frame (10) is movably fitted with a limiting plate (11), the upper end of the limiting plate (11) is fixedly connected to the assembly mechanism (6), the outer surface of the sliding plate (7) is movably fitted in the limiting frame (10), the two sides of the sliding plate (7) are provided with transverse grooves (18), one side of the sliding plate (7) is fixedly connected with a curved tube (13), the front of the carrier frame (4) is fixedly connected with a sleeve rod (14), the movable end of the sleeve rod (14) is fitted in one end of the curved tube (13), the outer surface of the curved tube (13) is fixedly fitted with an installation ring (15), and a No. 1 spring (16) is fixedly connected between the installation ring (15) and the carrier frame (4). The top of the outer surface of the curved tube (13) is fixedly connected to an energy storage mechanism (17). The side of the assembly mechanism (6) is fixedly connected to a top plate (9). The bottom surface of the top plate (9) is fixedly connected to a positioning rod (29). A fixing ring (19) is fixedly sleeved in the other end of the curved tube (13). A movable plug (20) is movably sleeved in the other end of the curved tube (13). A second spring (21) located in the curved tube (13) is fixedly connected between the movable plug (20) and the slide plate (7). A sealing rod (22) is fixedly connected to the side of the movable plug (20). A sleeve hole (27) is opened on the side of the slide plate (7). The inner surface of the socket (27) is movably sleeved with the sealing rod (22). The top of the outer surface of the sealing rod (22) is provided with a through hole (23). The inside and side of the slide plate (7) are provided with a connecting cavity (24) and an oil outlet hole (25). The top of the slide plate (7) is fixedly connected to a storage sleeve (28). The top of the slide plate (7) is provided with a top hole (26). The upper and lower ends of the top hole (26) are connected to the storage sleeve (28) and the connecting cavity (24) respectively. The inner and outer ends of the oil outlet hole (25) are connected to the connecting cavity (24) and the transverse groove (18) respectively. The side of the base (1) is provided with a hydraulic mechanism (33).

2. The construction lifting device according to claim 1, characterized in that: The socket (27) is connected to the connecting cavity (24), and the socket (27) is located directly below the top hole (26).

3. The construction lifting device according to claim 1, characterized in that: The horizontal grooves (18) are evenly spaced and distributed on both sides of the slide plate (7). The side of the limiting frame (10) is provided with a side groove (12). The inner surface of the side groove (12) is movably connected with the limiting plate (11). The inner side of the limiting frame (10) and the inner side of the limiting plate (11) are located on the same horizontal plane.

4. A construction lifting device according to claim 1, characterized in that: The energy storage mechanism (17) includes a short tube (171), a storage cylinder (172), a No. 3 spring (173), and a movable plate (174). The short tube (171) is fixedly connected to the top of the curved tube (13), the storage cylinder (172) is fixedly connected to the top of the short tube (171), the No. 3 spring (173) is fixedly connected to the inside of the storage cylinder (172), and the movable plate (174) is fixedly connected to the top of the No. 3 spring (173) and movably sleeved inside the storage cylinder (172). The storage cylinder (172) is located directly below the positioning rod (29), and the diameter of the small hole on the top surface of the storage cylinder (172) is larger than the diameter of the positioning rod (29).

5. A construction lifting device according to claim 1, characterized in that: The base (1) has a round hole (31) and an annular cavity (30) on its top surface and inside, respectively. The base (1) has a side opening (32) on its back side. The annular cavity (30) is connected to both the round hole (31) and the side opening (32). The round hole (31) is connected to the height adjustment mechanism (5).

6. A construction lifting device according to claim 1, characterized in that: The height adjustment mechanism (5) includes a fixed tube (51), a support rod (52) and a movable head (53). The fixed tube (51) is fixedly connected to the top surface of the base (1) and communicates with the round hole (31). The support rod (52) and the movable head (53) are both movably sleeved in the fixed tube (51). The movable head (53) is fixedly connected to the bottom surface of the support rod (52).

7. A construction lifting device according to claim 1, characterized in that: The assembly mechanism (6) includes an assembly plate (61), an assembly groove (62), and a pulley (63). The assembly plate (61) is fixedly connected to the top surface of the support rod (52). The assembly groove (62) is opened on the top of the assembly plate (61). The pulley (63) is rotatably installed in the assembly groove (62). The inner surface of the pulley (63) is in contact with the steel rope (8). The bottom surface of the assembly plate (61) is fixedly connected to the limiting plate (11). The assembly plate (61) is fixedly connected to the end face of the top plate (9).

8. A construction lifting device according to claim 1, characterized in that: The hydraulic mechanism (33) includes a connecting sleeve (331), a fixing plate (332), an oil pump (333), an oil tank (334), and an intermediate pipe (335). The connecting sleeve (331) is fixedly connected to the back of the base (1) and communicates with the side opening (32). The fixing plate (332) is fixedly connected to the side of the base (1). The oil pump (333) and the oil tank (334) are both installed on the top surface of the fixing plate (332). The intermediate pipe (335) is fixedly connected between the oil pump (333) and the connecting sleeve (331).

9. A construction lifting device according to claim 1, characterized in that: The cross-section of the connecting cavity (24) is "T" shaped, and the oil outlet (25) corresponds one-to-one with the transverse groove (18).

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