A highly stable prefabricated building material hoisting equipment for construction.

Abstract

This invention discloses a highly stable prefabricated building material hoisting device for construction, relating to the field of construction technology. The invention includes a hanger, with lifting blocks at both ends of the top of the hanger. A slider is slidably connected to the bottom of the hanger, and a first central rod is rotatably mounted on the bottom of the slider. A screw is threadedly connected to the bottom of the first central rod, and a second central rod is fixedly connected to the bottom of the screw. Lifting devices are welded to the outer sides of both sets of telescopic rods. This invention, by setting lifting blocks at both ends of the top of the hanger, ensures that the hanger remains horizontal during hoisting. Simultaneously, by setting telescopic lifting devices at both ends of the sleeve and controlling the telescopic distance of the two sets of lifting devices to be the same, the center of the sleeve and the hoisting center of gravity of the prefabricated component are located on the same vertical line. Furthermore, the setting of the central rod and slider ensures that the prefabricated component rises along the hoisting center, preventing swaying during hoisting and ensuring stable hoisting.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and specifically to a highly stable prefabricated building material hoisting equipment for building construction. Background Technology

[0002] With the development of modern industrial technology, houses can be manufactured in batches. Prefabricated house components are simply transported to the construction site and assembled. Prefabricated buildings began to attract people's interest in the early 20th century. Due to their fast construction speed and low production cost, prefabricated buildings have been rapidly promoted around the world.

[0003] Currently, prefabricated components for prefabricated buildings are mostly constructed using pre-embedded hooks. This involves bending steel bars into hooks and embedding them within the prefabricated component. Upon arrival at the construction site, wire ropes or slings are threaded through the hooks, and a crane lifts the component to the work surface. After installation, the hooks are removed using a flame gun to prevent them from interfering with subsequent construction processes. However, existing lifting frames often fail to align the lifting center with the prefabricated component's center of gravity on the same vertical line. This results in the component shifting after leaving the ground during lifting, causing it to sway and resulting in poor lifting stability. Furthermore, operator errors or adverse weather conditions can cause the component to sway. Existing lifting frames lack cushioning, making the lifting cables prone to swaying. Such swaying significantly reduces the safety of the lifting process. Summary of the Invention

[0004] The purpose of this invention is to address the problems that prefabricated components will have a certain position after leaving the ground, making them prone to swaying, resulting in poor hoisting stability, the lack of buffer function in the hoisting frame, and the easy swaying of the hoisting cable, which leads to poor hoisting safety. This invention provides a highly stable prefabricated building material hoisting equipment for construction.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A highly stable prefabricated building material hoisting device for construction includes a hanger. Both ends of the top of the hanger are equipped with lifting blocks. Each lifting block has a lifting hole for attaching a hook. The bottom of the hanger has a T-shaped groove, and a slider is slidably connected inside the T-shaped groove. A first central rod is rotatably mounted on the bottom of the slider. A screw is threadedly connected to the bottom of the first central rod. A second central rod is fixedly connected to the bottom of the screw. A sleeve is rotatably mounted on the bottom of the second central rod, with the second central rod located at the center of the sleeve. Telescopic rods are slidably connected to both ends of the sleeve. Lifting devices are welded to the outer sides of both sets of telescopic rods. A steel wire rope connects the lifting devices to the slider.

[0007] It also includes a buffer cylinder installed at the middle position of the top of the hanger. The buffer cylinder has a buffer piston rod slidably connected inside. A slot for inserting the buffer piston rod is opened at the middle position of the top of the slider.

[0008] Furthermore, a hanging groove is provided at the top inner part of the lifting hole, and a hanging plate is slidably connected inside the hanging groove. A support spring is provided between the hanging plate and the inner wall of the hanging groove. A transmission cylinder is installed on the top of the lifting block, and a transmission piston rod is slidably connected inside the transmission cylinder. The transmission piston rod is fixedly connected to the hanging plate, and the transmission cylinder is connected to the buffer cylinder through an air pipe.

[0009] Furthermore, the bottom of the mounting plate has a rounded design.

[0010] Furthermore, the width of the hanging groove is the same as the thickness of the hook.

[0011] Furthermore, a drive wheel is fixedly connected to the bottom of the second center rod. The drive wheel is located inside the sleeve. A telescopic spiral rod is rotatably installed inside the sleeve. A first bevel gear that meshes with the drive wheel is provided on the outer side of the telescopic spiral rod. A telescopic nut is threadedly connected to the outer side of the telescopic spiral rod. The telescopic nut is fixedly connected to the telescopic rod.

[0012] Furthermore, the spiral directions at both ends of the telescopic screw are opposite.

[0013] Furthermore, a transmission wheel is rotatably mounted on the outer side of the first central rod, and friction damping is provided between the transmission wheel and the first central rod. A movable gear is rotatably mounted on the back of the slider, and a second bevel gear is fixedly connected to the front of the movable gear. The second bevel gear meshes with the transmission wheel. A rack is provided at the bottom of the hanger, and the movable gear meshes with the rack.

[0014] Furthermore, the frictional resistance generated by the frictional damping is the same as the weight of the assembled building materials.

[0015] Furthermore, both the first center rod and the second center rod have rotation friction grooves on their outer sides to increase hand friction and facilitate manual rotation.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. This invention, by setting lifting blocks at both ends of the top of the hanger, ensures that the hanger remains horizontal during lifting. At the same time, by setting retractable lifting devices at both ends of the sleeve and controlling the retraction distance of the two sets of lifting devices to be the same, the center of the sleeve and the lifting center of gravity of the precast component are located on the same vertical line. Furthermore, by setting the center rod and the slider, it is ensured that the precast component rises along the lifting center, and no swaying occurs during lifting, thus ensuring stable lifting.

[0018] 2. In this invention, by setting up a buffer piston rod and a slot, when a large swing occurs during hoisting, the inertial force of the precast component is greater than the buffering force given by the buffer cylinder. At this time, the slider can slide in the opposite direction relative to the hanger. The slider can reduce the swing amplitude of the precast component and prevent it from being affected by external factors, resulting in high hoisting stability.

[0019] 3. The present invention, through the arrangement of the first central rod, the second central rod and two sets of wire ropes, enables the two sets of lifting devices to withstand greater lifting forces during lifting. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of the present invention along the positive axis;

[0022] Figure 3 This is a cross-sectional schematic diagram of the lifting block of the present invention;

[0023] Figure 4 This is the present invention. Figure 2 Enlarged diagram of part A in the middle;

[0024] Figure 5 This is a side view of the present invention;

[0025] Figure 6 This is the present invention. Figure 5 Enlarged schematic diagram of part B in the middle.

[0026] Reference numerals: 1. Hanger; 2. Lifting block; 3. Sliding block; 4. First center rod; 5. Screw; 6. Second center rod; 7. Sleeve; 8. Telescopic rod; 9. Lifting device; 10. Wire rope; 11. Slot; 12. Buffer cylinder; 13. Buffer piston rod; 14. Lifting hole; 15. Hanging groove; 16. Hanging plate; 17. Support spring; 18. Transmission cylinder; 19. Transmission piston rod; 20. Drive wheel; 21. Telescopic screw rod; 22. First bevel gear; 23. Telescopic nut; 24. Transmission wheel; 25. Moving gear; 26. Second bevel gear; 27. Rack. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0028] like Figures 1-6As shown, a highly stable prefabricated building material hoisting equipment for construction includes a hanger 1. Both ends of the top of the hanger 1 are provided with lifting blocks 2. The interior of the lifting blocks 2 is provided with lifting holes 14 for hanging hooks. The bottom of the hanger 1 is provided with a T-shaped slide groove. A slider 3 is slidably connected inside the T-shaped slide groove. A first central rod 4 is rotatably installed at the bottom of the slider 3. A screw rod 5 is threadedly connected to the bottom of the first central rod 4. A second central rod 6 is fixedly connected to the bottom of the screw rod 5. A sleeve 7 is rotatably installed at the bottom of the second central rod 6. The second central rod 6 is located at the center of the sleeve 7. Both ends of the sleeve 7 are slidably connected with telescopic rods 8. Lifting devices 9 are welded to the outside of both sets of telescopic rods 8. A wire rope 10 is connected between the lifting devices 9 and the slider 3.

[0029] It also includes a buffer cylinder 12 installed at the top center of the hanger 1. The buffer cylinder 12 has a buffer piston rod 13 slidably connected inside. The top center of the slider 3 has a slot 11 for inserting the buffer piston rod 13.

[0030] When in use, hang the two sets of hooks in the lifting holes 14 at both ends respectively, so that the hanger 1 can always be kept horizontal during hoisting, and the hanger 1 can be hoisted smoothly even when the hoisting center of the precast part does not coincide with the center line of the hanger. Then lower the hanger 1 to move the sleeve 7 to the position of the precast part.

[0031] At this time, the telescopic rods 8 at both ends extend simultaneously and to the same distance. When both sets of lifting devices 9 can be connected to the hooks on the precast component, the telescopic rods 8 stop extending and retracting. At this time, the lifting devices 9 are connected to the hooks. While the telescopic rods 8 are extending and retracting, the second center rod 6 is controlled to rotate relative to the first center rod 4. Under the action of the screw 5, the second center rod 6 drives the first center rod 4 to approach the sleeve 7. The first center rod 4 drives the slider 3 to approach the sleeve 7, ensuring that the wire rope 10 will not affect the extension and retraction of the telescopic rods 8, and the extension and retraction are stable. Moreover, during hoisting, the wire rope 10 can provide a certain supporting force to the lifting device 9, and the hoisting is stable.

[0032] When the lifting center of the hanger 1 and the lifting center of the precast component are not on the same vertical line, the air pressure inside the buffer cylinder 12 is reduced. At this time, the buffer piston rod 13 does not restrict the sliding of the slider 3 and controls the slider 3 to slide relative to the hanger 1. Since the second center rod 6 is located at the center of the sleeve 7, the second center rod 6 coincides with the lifting center of the precast component. When the second center rod 6 is vertical, the slider 3 is stopped from moving. At this time, when the precast component is lifted, the lifting center of the precast component remains vertical and is offset from the lifting center of the hanger 1. There is no need to adjust the position of the hanger 1, and the precast component will not have horizontal displacement during lifting. The lifting stability is high.

[0033] At this time, the internal air pressure of the buffer cylinder 12 is increased. As the hanger 1 moves the precast part, the precast part will drive the slider 3 to move relative to the hanger 1. When the slider 3 moves the slot 11 to the position of the buffer piston rod 13, the buffer piston rod 13 is engaged in the slot 11, and the slider 3 is fixed, ensuring that the device is more stable during assembly.

[0034] When hoisting, if the outside wind is strong, the wind will cause the precast component to swing. When the inertial force of the precast component is greater than the limiting force of the buffer piston rod 13, the slider 3 can slide relative to the hanger 1 again, which can reduce the swing amplitude of the precast component and make the hoisting stability high.

[0035] like Figure 2 , Figure 3 As shown, in some embodiments, a hanging groove 15 is provided at the inner top of the hanging hole 14, a hanging plate 16 is slidably connected inside the hanging groove 15, a support spring 17 is provided between the hanging plate 16 and the inner wall of the hanging groove 15, a transmission cylinder 18 is installed on the top of the hanging block 2, a transmission piston rod 19 is slidably connected inside the transmission cylinder 18, the transmission piston rod 19 is fixedly connected to the hanging plate 16, and the transmission cylinder 18 is connected to the buffer cylinder 12 through an air pipe.

[0036] When not being lifted, the hook does not apply tension to the hanging plate 16. At this time, the support spring 17 drives the hanging plate 16 to descend, and the hanging plate 16 drives the transmission piston rod 19 to descend. The transmission piston rod 19 causes the transmission cylinder 18 to generate suction. The transmission cylinder 18 reduces the internal air pressure of the buffer cylinder 12 through the air pipe. The buffer piston rod 13 moves away from the slot 11, and the slider 3 can slide relative to the hanger 1, which is convenient for adjustment.

[0037] After lifting, the hook drives the hanging plate 16 to slide upward, and the hanging plate 16 drives the transmission piston rod 19 to rise. The transmission piston rod 19 pressurizes the gas inside the transmission cylinder 18 into the buffer cylinder 12. The air pressure inside the buffer cylinder 12 increases, and the buffer piston rod 13 can restrict the slider 3, making the assembly stable. At the same time, the bottom of the buffer piston rod 13 is designed with a rounded arc, which makes it easy to disengage from the slot 11, and the structure operates stably.

[0038] like Figure 3 As shown, in some embodiments, the bottom of the hanging plate 16 is designed with an arc to increase the contact area with the hook and make the hoisting stable.

[0039] like Figure 3 As shown, in some embodiments, the width of the hanging groove 15 is the same as the thickness of the hook. This design prevents the hook from shifting when it enters the hanging groove 15, further improving the stability of the hanger 1.

[0040] like Figure 4As shown, in some embodiments, a drive wheel 20 is fixedly connected to the bottom of the second central rod 6. The drive wheel 20 is located inside the sleeve 7. A telescopic screw rod 21 is rotatably installed inside the sleeve 7. A first bevel gear 22 that meshes with the drive wheel 20 is provided on the outer side of the telescopic screw rod 21. A telescopic nut 23 is threadedly connected to the outer side of the telescopic screw rod 21. The telescopic nut 23 is fixedly connected to the telescopic rod 8.

[0041] The first central rod 4 is restricted from rotating, while the second central rod 6 is rotated. The second central rod 6 drives the drive wheel 20 to rotate, which in turn drives the first bevel gear 22 to rotate. The first bevel gear 22 drives the telescopic screw rod 21 to rotate, which in turn drives the telescopic nut 23 to rotate. The telescopic nut 23 then drives the telescopic rod 8 to extend and retract. At the same time, the second central rod 6, under the action of the screw 5, drives the first central rod 4 to move closer to the sleeve 7. The first central rod 4 then drives the slider 3 to move closer to the sleeve 7, ensuring that the wire rope 10 does not affect the extension and retraction of the telescopic rod 8. The extension and retraction are stable. The extension and retraction of the telescopic rod 8 and the tension of the wire rope 10 can be controlled simultaneously through a single mechanism, resulting in a compact structure.

[0042] like Figure 4 As shown, in some embodiments, the spiral directions at both ends of the telescopic screw rod 21 are opposite. With this design, only one set of telescopic screw rods 21 is needed to synchronously drive two sets of telescopic rods 8 to extend and retract in opposite directions, resulting in a compact structure.

[0043] like Figure 5 , Figure 6 As shown, in some embodiments, a transmission wheel 24 is rotatably mounted on the outer side of the first central rod 4, and friction damping is provided between the transmission wheel 24 and the first central rod 4. A movable gear 25 is rotatably mounted on the back of the slider 3, and a second bevel gear 26 is fixedly connected to the front of the movable gear 25. The second bevel gear 26 meshes with the transmission wheel 24. A rack 27 is provided at the bottom of the hanger 1, and the movable gear 25 meshes with the rack 27.

[0044] When the precast component sways during hoisting, and the slider 3 is displaced relative to the hanger 1, the slider 3 drives the moving gear 25 to move relative to the rack 27. The rack 27 drives the moving gear 25 to rotate, and the moving gear 25 drives the second bevel gear 26 to rotate. The second bevel gear 26 provides driving force to the transmission wheel 24. Since the lifting device 9 is connected to the hook, the telescopic rod 8 cannot extend or retract. The telescopic rod 8 restricts the rotation of the second center rod 6 through the telescopic nut 23 and the telescopic screw rod 21. At the same time, under the restriction of the wire rope 10, the first center rod 4 cannot rotate relative to the second center rod 6. Therefore, the first center rod 4 cannot rotate either. The first center rod 4 provides sliding restriction force to the slider 3 through frictional damping between itself and the transmission wheel 24, preventing the slider 3 from sliding too fast and further providing buffer force to the device, resulting in a good anti-sway effect.

[0045] like Figure 6As shown, in some embodiments, the frictional resistance generated by frictional damping is the same as the weight of the assembled building materials, which more effectively and quickly reduces the sway amplitude of the precast components.

[0046] like Figure 1 As shown, in some embodiments, the outer sides of the first center rod 4 and the second center rod 6 are provided with rotation friction grooves to increase the friction of the hand and facilitate manual rotation. This design makes it easier to control the first center rod 4 and the second center rod 6 and facilitates rotation.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A highly stable prefabricated building material hoisting equipment for construction, comprising a hoist (1), characterized in that, The top of the hanger (1) is provided with two lifting blocks (2) at both ends. The lifting block (2) has a lifting hole (14) for hanging hooks. The bottom of the hanger (1) has a T-shaped groove. The sliding block (3) is slidably connected inside the T-shaped groove. The bottom of the sliding block (3) is rotatably installed with a first central rod (4). The bottom of the first central rod (4) is threadedly connected with a screw (5). The bottom of the screw (5) is fixedly connected with a second central rod (6). The bottom of the second central rod (6) is rotatably installed with a sleeve (7). The second central rod (6) is located at the center of the sleeve (7). Both ends of the sleeve (7) are slidably connected with telescopic rods (8). The outer sides of the two sets of telescopic rods (8) are welded with lifting devices (9). The lifting devices (9) are connected to the sliding block (3) with a wire rope (10). It also includes a buffer cylinder (12) installed at the middle position of the top of the hanger (1), and a buffer piston rod (13) is slidably connected inside the buffer cylinder (12). A slot (11) for inserting the buffer piston rod (13) is provided at the middle position of the top of the slider (3). The top of the lifting hole (14) is provided with a hanging groove (15), and a hanging plate (16) is slidably connected inside the hanging groove (15). A support spring (17) is provided between the hanging plate (16) and the inner wall of the hanging groove (15). A transmission cylinder (18) is installed on the top of the lifting block (2). A transmission piston rod (19) is slidably connected inside the transmission cylinder (18). The transmission piston rod (19) is fixedly connected to the hanging plate (16). The transmission cylinder (18) is connected to the buffer cylinder (12) through an air pipe. A drive wheel (20) is fixedly connected to the bottom of the second center rod (6). The drive wheel (20) is located inside the sleeve (7). A telescopic screw rod (21) is rotatably installed inside the sleeve (7). A first bevel gear (22) that meshes with the drive wheel (20) is provided on the outside of the telescopic screw rod (21). A telescopic nut (23) is threadedly connected to the outside of the telescopic screw rod (21). The telescopic nut (23) is fixedly connected to the telescopic rod (8).

2. The prefabricated building material hoisting equipment for construction with high stability according to claim 1, characterized in that, The bottom of the hanging plate (16) is designed with an arc.

3. The prefabricated building material hoisting equipment for construction with high stability according to claim 2, characterized in that, The width of the hanging groove (15) is the same as the thickness of the hook.

4. The prefabricated building material hoisting equipment for construction with high stability according to claim 1, characterized in that, The spiral directions at both ends of the telescopic spiral rod (21) are opposite.

5. The prefabricated building material hoisting equipment for construction with high stability according to claim 4, characterized in that, A transmission wheel (24) is rotatably mounted on the outer side of the first central rod (4). Friction damping is provided between the transmission wheel (24) and the first central rod (4). A moving gear (25) is rotatably mounted on the back of the slider (3). A second bevel gear (26) is fixedly connected to the front of the moving gear (25). The second bevel gear (26) meshes with the transmission wheel (24). A rack (27) is provided at the bottom of the hanger (1). The moving gear (25) meshes with the rack (27).

6. The prefabricated building material hoisting equipment for construction with high stability according to claim 5, characterized in that, The frictional resistance generated by the friction damping is the same as the weight of the assembled building materials.

7. A highly stable prefabricated building material hoisting equipment for construction according to any one of claims 1-6, characterized in that, Both the first center rod (4) and the second center rod (6) have rotation friction grooves on their outer sides to increase hand friction and facilitate manual rotation.

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