Multifunctional hoisting device for building construction

Abstract

The invention discloses a multifunctional hoisting device for building construction, which is characterized in that the bottoms of two supporting seats are rotationally connected with horizontal lower supporting rollers in the front-back direction respectively, the two lower supporting rollers are jointly wound with a flexible supporting belt in a spiral shape, and upper supporting rollers are mounted on the upper parts of the two supporting seats in the front-back direction respectively; sliding blocks are rotationally connected to the front portions and the rear portions of the two upper supporting rollers correspondingly, the sliding blocks are connected with the supporting bases in an up-down sliding mode, and elastic pieces are fixed to the sliding blocks correspondingly. When a reinforcing steel bar bundle and a steel plate are hoisted, the supporting belt with the proper size can enable the middle of the reinforcing steel bar bundle and the middle of the steel plate to fall downwards, so that the gravity center is stably located above the supporting belt, and the risk that the reinforcing steel bar bundle and the steel plate slide to the two sides can be greatly reduced; and then the two ends of the steel bar bundle or the steel belt can fall to the ground, so that the scratching damage of the two ends to the ground is reduced.

Description

Technical Field

[0001] This invention relates to the field of load-bearing components, and more particularly to a multi-functional hoisting device for building construction. Background Technology

[0002] When it is necessary to lift objects with different structures and shapes, different lifting devices are often used. For example, objects with irregular structures are often lifted using flexible slings, while regular and flat objects are often lifted using suction cups or clamps.

[0003] Existing hoisting equipment uses slings or clamps to secure bundles of reinforcing bars or stacked steel plates to the middle before lifting. This method has certain drawbacks. When placing the bent reinforcing bars or plates, the ends droop and initially contact the placement surface. As the bars or plates are lowered, the ends move away from each other, easily scraping and damaging the placement surface. This is particularly detrimental to placement surfaces made of soft materials such as rubber. Furthermore, when using hoisting equipment to lift reinforcing bars or steel plates (especially steel plates), this method is problematic. The two sides of the reinforcing bar bundle or steel plate will droop downwards. Therefore, when there is a significant offset between the center of gravity of the upper reinforcing bar or steel plate and the hoisting device, there is a risk of it sliding down to the drooping side. When hoisting steel coils, slings or chains are often used to hoist them through the holes in the middle of the steel coil. This hoisting method is relatively simple, but it cannot prevent the risk of the steel coil's elastic release. In addition, due to the small contact area with the steel coil, the surface of the steel strip or sling is easily damaged, which is not conducive to the safety of hoisting. Furthermore, the existing hoisting devices do not have a transfer function, highlighting the shortcomings of the existing technology. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-functional hoisting device for building construction to solve the above-mentioned technical problems.

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

[0006] A multi-functional hoisting device for building construction includes two support bases, lower support rollers, a support belt, upper support rollers, sliders, a lower gear, an upper gear, a lower lifting ring, a tightening bolt, a toothed plate, a sling, an upper lifting ring, a left support frame, a right support frame, and support wheels. The bottoms of the two support bases are rotatably connected to horizontal lower support rollers in the front-to-back direction. A flexible support belt is spirally wound around both lower support rollers. Upper support rollers are mounted on the upper parts of the two support bases in the front-to-back direction. Sliders are rotatably connected to the front and rear parts of each upper support roller, and these sliders are slidably connected to the support bases. Each slider is fixed with an elastic element, the other end of which is fixed to the support base. Lower gears are coaxially fixed to the front and rear parts of each of the two lower support rollers, and upper gears are coaxially fixed to the front and rear parts of each of the two upper support rollers. The upper and lower gears correspond vertically. Under the elastic force of the elastic elements, the upper support rollers tend to move away from the lower support rollers. Each support has two vertical lower lifting rings fixed at the top front and rear. Vertical tightening bolts are threaded onto the upper front and upper rear parts of the support. A toothed plate is rotatably connected to the bottom of each tightening bolt, and the toothed plate slides vertically with the support. Lifting cables are installed on both supports, and upper lifting rings are fixed to the two ends of each cable. Each upper lifting ring is movably inserted into each lower lifting ring. A vertical left support frame is fixed to the support on the left side of the support belt, and a vertical right support frame is fixed to the support on the right side of the support belt. A set of support wheels is rotatably connected to the front and rear parts of both the left and right support frames. Each set of support wheels contains multiple support wheels. The support wheels in the two sets of support wheels rotatably connected to the left support frame are arranged in an "L" shape. The support wheels in the two sets of support wheels rotatably connected to the right support frame are mirror images of the support wheels rotatably connected to the left support frame.

[0007] Based on the above technical solution, the elastic element is a compression spring. The top end of the compression spring is fixed to the bottom end of the slider, and the bottom end of the compression spring is fixed to the support seat. Each of the two support seats has a horizontal limiting platform fixed at its front and rear ends. The limiting platform is located between the upper support roller and the lower support roller. When the tightening bolt rotates in both directions, it can make the toothed plate slide up and down along the support seat. The toothed plate can mesh with the upper gear. When the upper support roller is pressed down to a certain position, it can make the upper gear mesh with the lower gear. When the upper gear and the lower gear mesh, the bottom end of the slider can just fit and contact the top end of the limiting platform.

[0008] Based on the above technical solution, each of the front and rear ends of the left support frame is fixed with a horizontal left connecting seat, and each of the two left connecting seats has a vertical threaded hole. Each of the front and rear ends of the right support frame is fixed with a horizontal right connecting seat, and each of the two right connecting seats is rotatably connected to a vertical transmission cylinder. When the transmission cylinder and the threaded hole are in a coaxial state, they can be threaded together to a detachable adjusting screw.

[0009] Based on the above technical solution, the front and rear ends of the lower support roller are respectively coaxially fixed with a main hexagonal prism, one end of the adjusting screw is coaxially fixed with a secondary hexagonal prism, and the top end of the transmission cylinder is coaxially fixed with a vertical hexagonal cylinder, which can be threadedly connected to the adjusting screw.

[0010] Compared with the prior art, the present invention has the following advantages: When in use, the present invention utilizes the meshing of the toothed plate, the upper gear and the lower gear to limit the length of the released support belt, thereby limiting the maximum spacing between the upper support rollers and the maximum spacing between the lower support rollers, thus enabling it to adapt to steel bar bundles and steel plates of different lengths, as well as steel coils of different diameters.

[0011] When hoisting steel bar bundles and steel plates, a support belt of appropriate size allows the middle of the bundle or plate to hang downwards, thus keeping the center of gravity stably above the support belt. This greatly reduces the risk of slipping to the sides. At the same time, during placement, the middle of the bundle or plate will contact the ground first through the support belt, and then the two ends of the bundle or plate will fall towards the ground, thereby reducing the scraping damage to the ground at the ends.

[0012] When hoisting steel coils, the support belt partially wraps around the outer circumference of the coil, increasing the contact area and reducing the pressure per unit area of ​​the support belt at the contact points. This reduces damage to the support belt and the surface of the steel coil, while also effectively preventing the elastic release of the steel coil, thus ensuring the safety of hoisting.

[0013] The spacing between the lower support rollers can be limited by using the adjusting screw, and then the support belt can be used to support the steel bar bundle, steel plate or steel beam. Then, the sling is pulled to drag it, and the object being transported can be transferred by the rolling friction between the support wheel and the ground. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the axial structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the axial structure of the left and right connecting seats of the present invention.

[0016] Figure 3 This is a schematic diagram illustrating the operation of the present invention when hoisting steel plates, steel bar bundles, and steel coils.

[0017] Figure 4 This is a partially enlarged structural diagram of point A in the present invention.

[0018] Figure 5 This is a schematic diagram illustrating the operation of the present invention when transferring steel plates, reinforcing bar bundles, and steel beams.

[0019] In the diagram: 1. Support base, 2. Lower support roller, 3. Support belt, 4. Upper support roller, 5. Slider, 6. Lower gear, 7. Upper gear, 8. Lower lifting ring, 9. Tightening bolt, 10. Gear plate, 11. Lifting cable, 12. Upper lifting ring, 13. Left support frame, 14. Right support frame, 15. Support wheel, 16. Compression spring, 17. Limiting platform, 18. Left connecting seat, 19. Threaded hole, 20. Right connecting seat, 21. Transmission cylinder, 22. Adjusting screw, 23. Main hexagonal prism, 24. Secondary hexagonal prism, 25. Hexagonal cylinder. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-5As shown, a multi-functional hoisting device for building construction includes two support bases 1, lower support rollers 2, support belts 3, upper support rollers 4, sliders 5, lower gears 6, upper gears 7, lower lifting rings 8, tightening bolts 9, toothed plates 10, slings 11, upper lifting rings 12, a left support frame 13, a right support frame 14, and support wheels 15. The bottoms of the two support bases 1 are rotatably connected to horizontal lower support rollers 2 in the front-to-back direction. The two lower support rollers 2 are wound together with a flexible support belt 3 in a spiral shape. Upper support rollers 4 are respectively installed on the upper parts of the two support bases 1 in the front-to-back direction. Slider 5s are rotatably connected to the front and rear parts of each of the two upper support rollers 4. The sliders 5 are connected to... The support base 1 is slidably connected vertically. Each slider 5 is fixed with an elastic element, the other end of which is fixed to the support base 1. Lower gears 6 are coaxially fixed to the front and rear sections of the two lower support rollers 2, and upper gears 7 are coaxially fixed to the front and rear sections of the two upper support rollers 4. The upper gears 7 and lower gears 6 correspond vertically. Under the elastic force of the elastic elements, the upper support roller 4 tends to move away from the lower support roller 2, thus allowing the upper gears 7 and lower gears 6 to disengage when the upper support roller 4 is not pressed downwards to a certain position. This prevents the rotation of the lower support roller 2 and the upper support roller 4 from interfering with each other. The support base 1... Vertical lower lifting rings 8 are fixed at the front and rear of the top. Vertical tightening bolts 9 are threaded to the upper front and upper rear of the support base 1. The bottom of the tightening bolts 9 is rotatably connected to toothed plates 10. The toothed plates 10 are slidably connected to the support base 1. The two support bases 1 are respectively equipped with slings 11. The two ends of the two slings 11 are respectively fixed with upper lifting rings 12. Each upper lifting ring 12 is movably inserted into each lower lifting ring 8. A vertical left support frame 13 is fixed to the support base 1 on the left side of the support belt 3. A vertical right support frame 14 is fixed to the support base 1 on the right side of the support belt 3. The left support frame 13 is front and rear. Each of the two supports and the right support frame 14 is rotatably connected to a set of support wheels 15. Each set of support wheels 15 contains multiple support wheels 15. The support wheels 15 in the two sets of support wheels 15 rotatably connected to the left support frame 13 are arranged in an "L" shape. When the "L"-shaped support wheels 15 roll and rub against the ground, it is convenient to adjust the distance between the two support seats 1, and thus to adjust the distance between the two upper support rollers 4. The support wheels 15 in the two sets of support wheels 15 rotatably connected to the right support frame 14 are mirror images of the support wheels 15 rotatably connected to the left support frame 13.

[0022] The elastic element is a compression spring 16. The top end of the compression spring 16 is fixed to the bottom end of the slider 5. The bottom end of the compression spring 16 is fixed to the support base 1. Each of the two support bases 1 has a horizontal limiting platform 17 fixed at its front and rear ends. The limiting platform 17 is located between the upper support roller 4 and the lower support roller 2. When the tightening bolt 9 rotates forward and backward, the toothed plate 10 can slide up and down along the support base 1. The toothed plate 10 can mesh with the upper gear 7. When the upper support roller 4 is pressed down to a certain position, the upper gear 7 can mesh with the lower gear 6. When the upper gear 7 and the lower gear 6 mesh, the bottom end of the slider 5 can just fit against the top end of the limiting platform 17, thereby using the limiting platform 17 to support the slider 5 and prevent the load borne by the upper support roller 4 from being completely transmitted to the upper gear 7 and the lower gear 6 and causing damage.

[0023] The left support frame 13 has horizontal left connecting seats 18 fixed at both its front and rear ends. Each of the two left connecting seats 18 has a vertical threaded hole 19. The right support frame 14 has horizontal right connecting seats 20 fixed at both its front and rear ends. Each of the two right connecting seats 20 is rotatably connected to a vertical transmission cylinder 21. When the transmission cylinder 21 and the threaded hole 19 are coaxial, they are threaded together to a detachable adjusting screw 22. By setting the transmission cylinder 21, the distance between the left connecting seat 18 and the right connecting seat 20 can be easily adjusted. When the adjusting screw 22 rotates synchronously in both directions, the left connecting seat 18 can move closer to and further away from the right connecting seat 20, thereby indirectly adjusting the distance between the two lower support rollers 2, and indirectly matching the length of the released support belt 3. When the transmission cylinder 21 and the right connecting seat 20 remain relatively stationary, and the adjusting screw 22 is rotated, the position of the adjusting screw 22 relative to the left connecting seat 18 and the right connecting seat 20 can be adjusted to make its position appropriate, so that the adjusting screw 22 can better limit the distance between the left connecting seat 18 and the right connecting seat 20.

[0024] The lower support roller 2 has a main hexagonal prism 23 coaxially fixed at both ends. The adjusting screw 22 has a secondary hexagonal prism 24 coaxially fixed at one end. The transmission cylinder 21 has a vertical hexagonal cylinder 25 coaxially fixed at its top end. The hexagonal cylinder 25 can be threadedly connected to the adjusting screw 22. By setting the main hexagonal prism, secondary hexagonal prism 24 and hexagonal cylinder 25, the lower support roller 2, adjusting screw 22 and transmission cylinder 21 can be rotated conveniently respectively.

[0025] The working principle of this invention is as follows: When it is necessary to lift the bundled steel bars or steel strips, the adjusting screw 22 is removed and the steel bars or steel strips are placed on the top of the two upper support rollers 4. The upper support rollers 4 are then pressed down, which allows the upper gear 7 to mesh with the upper gear 6. At this time, the bottom end of the slider 5 is in contact with the top end of the limiting platform 17. Then, the tightening bolt 9 is rotated to make the toothed plate 10 mesh with the upper gear 7, which indirectly prevents the upper gear 7, upper support roller 4, lower gear 6 and lower support roller 2 from rotating. The support belt 3 is used to limit the maximum distance between the two upper support rollers 4. Before pressing down the upper support rollers 4, the main hexagonal prism 23 is rotated appropriately, so that the distance between the two upper support rollers 4 is greater than half the length of the steel bar or steel plate. The length of the steel bar or steel plate is less than the total length of the steel bar or steel plate. At the same time, the two upper support rollers 4 are located at the lower left and lower right of the steel bar, respectively. At this time, the device can be lifted by two slings 11, so that the middle part of the steel bar or steel plate can fall downward under the action of gravity and always have a downward tendency. Compared with the downward tendency of the sides, the downward tendency of the middle part is stronger. At this time, the center of gravity of the steel bar and steel plate will be stably located above the support belt 3 and can be supported by the support belt 3. Then, the steel bar bundle and steel plate can be stably lifted and transported, and it is difficult to slip. When placing, the bottom of the middle part of the steel bar bundle or steel strip will contact the ground first through the support belt 3, and then the two ends of the steel bar bundle or steel strip will gradually fall, which can reduce the scratch damage of the two ends to the ground.

[0026] When steel coils need to be hoisted, based on the above, the maximum distance between the two upper support rollers 4 is adjusted to be greater than half the outer circumference of the steel coil but less than its outer circumference. Then, the steel coil is completely placed on the top of the support belt 3, so that the support belt 3 contacts and adheres to the circumference of the steel belt. Then, the device can be hoisted using two slings 11, so that the steel coil can fall downward under the action of gravity. At this time, the center of gravity of the steel coil will be stably located above the support belt 3, and its outer circumference can be partially surrounded by the support belt 3, which increases the contact area and reduces the pressure per unit area of ​​the contact part on the support belt 3, thereby reducing damage to the support belt 3 and the surface of the steel coil. At the same time, it can effectively prevent the elastic release of the steel coil, thus ensuring the safety of hoisting.

[0027] When it is necessary to transfer the bundled steel bars, steel plates, and steel beams, the left support frame 13 is flipped to the left, causing the vertically arranged support wheels 15 on the left side of the left support frame 13 to roll and rub against the ground. The right support frame 14 is flipped to the right, causing the vertically arranged support wheels 15 on the right side of the right support frame 14 to roll and rub against the ground. Then, the distance between the two lower support rollers 2 is adjusted so that the distance between the two lower support rollers 2 is greater than half the length of the steel bars, steel plates, and steel beams. Then, the tightening bolt 9 is rotated to make the toothed plate 10 mesh with the upper gear 7, and further make the upper gear 7 mesh with the lower gear 6, thereby enabling... To prevent the upper gear 7 and lower gear 6 from rotating, the adjusting screw 22 is threadedly connected to the threaded hole 19, the transmission cylinder 21 and the hexagonal cylinder 25, thereby limiting the distance between the two lower support rollers 2. Then, the steel bar bundle, steel plate and steel beam are placed at the top of the support belt 3, so that the middle part of the steel bar bundle or steel strip is in the upper middle of the support belt 3. At this time, the middle part of the steel bar bundle or steel strip will hang down under the action of gravity, and the support belt 3 can be used to stably support the steel bar bundle or steel strip. Then, by pulling the sling 11, the device together with the steel bar bundle, steel plate and steel beam can be dragged to realize the transfer.

[0028] The above description represents a preferred embodiment of the present invention. For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of the present invention, based on the teachings of the present invention, still fall within the protection scope of the present invention.

Claims

1. A multi-functional hoisting device for building construction, comprising two support bases (1), a lower support roller (2), a support belt (3), an upper support roller (4), a slider (5), a lower gear (6), an upper gear (7), a lower lifting ring (8), a tightening bolt (9), a toothed plate (10), a sling (11), an upper lifting ring (12), a left support frame (13), a right support frame (14), and a support wheel (15), characterized in that: The bottom of each of the two support bases (1) is rotatably connected to a horizontal lower support roller (2) in the front-to-back direction. The two lower support rollers (2) are wound together with a flexible support belt (3) in a spiral shape. The upper part of each of the two support bases (1) is equipped with an upper support roller (4) in the front-to-back direction. The front and rear parts of each of the two upper support rollers (4) are rotatably connected to a slider (5). The slider (5) is slidably connected to the support base (1) in a vertical manner. Each slider (5) is fixed with an elastic element. The other end of the elastic element is fixed to the support base (1). The two lower support rollers (1) are rotatably connected to a horizontal lower support roller (2) in the front-to-back direction. The two lower support rollers (2) are rotatably connected to a horizontal lower support roller (3) in the front-to-back direction. The two lower support rollers (2) are rotatably connected to a horizontal lower support roller (3) in the front-to-back direction. The two lower support rollers (2) are rotatably connected to a horizontal lower support roller (4) in the front-to-back direction. The two lower support rollers (2) are rotatably connected to a horizontal lower support roller (3 ... The support roller (2) has a lower gear (6) fixed coaxially at its front and rear ends respectively. The two upper support rollers (4) have an upper gear (7) fixed coaxially at their front and rear ends respectively. The upper gear (7) and the lower gear (6) are vertically aligned. Under the elastic force of the elastic element, the upper support roller (4) tends to move away from the lower support roller (2). The support base (1) has vertical lower lifting rings (8) fixed at its front and rear ends. The upper front and upper rear ends of the support base (1) are threaded with vertical tightening bolts (9). The bottom of the tightening bolts (9) Each of the two support seats (1) is rotatably connected to a toothed plate (10), which slides vertically and vertically with the support seat (1). Each of the two support seats (1) is equipped with a sling (11), and each of the two slings (11) has an upper lifting ring (12) fixed at one end. Each upper lifting ring (12) is movably inserted into each lower lifting ring (8). A vertical left support frame (13) is fixed to the support seat (1) on the left side of the support belt (3), and a vertical right support frame (14) is fixed to the support seat (1) on the right side of the support belt (3). The left support frame (13)... 13) The front and rear parts and the right support frame (14) are each rotatably connected to a set of support wheels (15). Each set of support wheels (15) contains multiple support wheels (15). The support wheels (15) in the two sets of support wheels (15) rotatably connected to the left support frame (13) are arranged in an "L" shape. The support wheels (15) in the two sets of support wheels (15) rotatably connected to the right support frame (14) are mirror images of the support wheels (15) rotatably connected to the left support frame (13).

2. The multi-functional hoisting device for building construction according to claim 1, characterized in that: The elastic element is a compression spring (16). The top end of the compression spring (16) is fixed to the bottom end of the slider (5). The bottom end of the compression spring (16) is fixed to the support seat (1). Each of the two support seats (1) has a horizontal limiting platform (17) fixed at the front and rear. The limiting platform (17) is located between the upper support roller (4) and the lower support roller (2). When the tightening bolt (9) rotates forward and backward, the toothed plate (10) can slide up and down along the support seat (1). The toothed plate (10) can mesh with the upper gear (7). When the upper support roller (4) is pressed down to a certain position, the upper gear (7) can mesh with the lower gear (6). When the upper gear (7) meshes with the lower gear (6), the bottom end of the slider (5) can just fit and contact the top end of the limiting platform (17).

3. The multi-functional hoisting device for building construction according to claim 2, characterized in that: The left support frame (13) has horizontal left connecting seats (18) fixed at both ends. The two left connecting seats (18) are respectively threaded through vertical threaded holes (19). The right support frame (14) has horizontal right connecting seats (20) fixed at both ends. The two right connecting seats (20) are respectively rotatably connected to vertical transmission cylinders (21). When the transmission cylinders (21) and the threaded holes (19) are in a coaxial state, they can be threaded together to a detachable adjusting screw (22).

4. The multi-functional hoisting device for building construction according to claim 3, characterized in that: The lower support roller (2) has a main hexagonal prism (23) coaxially fixed at both ends. The adjusting screw (22) has a secondary hexagonal prism (24) coaxially fixed at one end. The transmission cylinder (21) has a vertical hexagonal tube (25) coaxially fixed at the top end. The hexagonal tube (25) can be threadedly connected to the adjusting screw (22).

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