Prefabricated road plate hoisting structure

Abstract

The utility model relates to the technical field of hoisting tools, and discloses a prefabricated road plate hoisting structure which comprises a hoisting cross beam and two hoisting frame bodies, the two hoisting frame bodies are symmetrically arranged at the bottom of the hoisting cross beam and used for fixing a prefabricated road plate body, the side faces of the hoisting frame bodies abut against one side of the prefabricated road plate body, and the hoisting frame bodies are arranged on the hoisting cross beam. A vertically inward supporting plate is arranged on one side of the bottom of the lifting frame body, two slidable connecting seats are arranged on the lower surface of the lifting cross beam, and at least two first lifting ropes are arranged at the bottoms of the connecting seats. Compared with the prior art, the hoisting device has the following beneficial effects that the tensioning mechanisms are arranged, the supporting plates on the two hoisting frame bodies are clamped to the lower surface of the prefabricated road plate body, then the prefabricated road plate body can be hoisted, the hoisting efficiency of the prefabricated road plate body is improved, and operation is convenient and fast during hoisting.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting tools, in particular to a prefabricated road slab hoisting structure. Background Art

[0002] Precast panels are modules or panels used in engineering projects. They are precast concrete parts produced and processed in precast yards and transported directly to the construction site for installation. Precast roads are precast concrete parts produced and processed in precast yards and used for paving and splicing roads. Due to the heavy weight of precast road panels, lifting equipment is required to assist in on-site laying in order to improve construction efficiency.

[0003] To improve safety during the hoisting of prefabricated road slabs, numerous improvements have been made to the hoisting structure of prefabricated road slabs in the prior art. For example, patent publication number CN217296982U discloses an adjustable hoisting tool for the construction of prefabricated road slabs. The tool comprises a prefabricated slab with insertion holes formed on the top of each slab surface. The top inner walls of the four insertion holes are each provided with a spherical groove. The top of each spherical groove is provided with an adjustable hoisting mechanism, which includes a rubber hemisphere. The adjustable hoisting mechanism comprises a hemispherical rubber structure and a dedicated anti-drop pull rod. When the prefabricated beam is pre-embedded with the rubber sphere to ensure sufficient hoisting space, the prefabricated slab can be directly hoisted by simply hooking the hook on the anti-drop pull rod after disassembly. The tool has a simple structure and is easy to operate. It avoids the danger of prefabricated slabs falling during hoisting, thereby enhancing the hoisting effect and preventing the cost increase caused by damage.

[0004] The above patents have obvious beneficial effects, but still have the following deficiencies in actual operation:

[0005] The above-mentioned comparative documents disclose that spherical grooves are reserved on the prefabricated road slabs and the prefabricated road slabs are hoisted with pull rods and hooks. However, in actual operation, after the prefabricated road slabs are assembled, the spherical grooves need to be repaired after the slabs are assembled. In addition, when hoisting the prefabricated road slabs, the pull rods need to be installed with nuts, which makes hoisting the prefabricated road slabs more troublesome and increases the construction steps after the prefabricated road slabs are installed, thereby reducing the installation efficiency of the prefabricated road slabs. Therefore, a device is needed to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a prefabricated road slab hoisting structure, which solves the problem of low efficiency in the hoisting and installation process of the prefabricated road slab.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a prefabricated road slab lifting structure, including a lifting beam and a lifting frame, wherein two lifting frames are provided and symmetrically arranged at the bottom of the lifting beam to fix the prefabricated road slab body, the side surface of the lifting frame is tightly pressed against one side of the prefabricated road slab body, one side of the bottom of the lifting frame is provided with a lifting plate vertically arranged inwardly, the lower surface of the lifting beam is provided with two slidable connecting seats, the bottom of the connecting seat is provided with at least two first lifting ropes, the connecting seat is connected to the lifting frame through the first lifting rope, and the top of the lifting beam is fixedly connected with a lifting ring;

[0008] An adjusting mechanism for adjusting the distance between the connecting seats is provided inside the hoisting crossbeam, and a tightening mechanism for tightening the hoisting frames is provided between the two hoisting frames.

[0009] Optionally, the tensioning mechanism includes a hinged rod, a movable seat and a fixed plate, the hinged rod is hingedly arranged on one side of the lifting frame, the hinged rod is hingedly connected to the movable seat on the side away from the lifting frame, the fixed plate is fixedly connected to the upper surface of the movable seat, the top of the fixed plate is fixedly connected to the second lifting rope, and a rope winding machine is provided in the middle of the lifting beam for tightening the second lifting rope, and the second lifting rope is wrapped around the rotating part of the rope winding machine.

[0010] Optionally, a guide column is connected through the interior of the fixing plate, a first spring is provided between the two fixing plates and is sleeved on the side of the guide column, and both ends of the guide column are fixedly connected with a stopper.

[0011] Optionally, a first connecting rod and a second connecting rod are provided on the outer side of the movable seat, the second connecting rod is fixedly connected to the side of the movable seat, and an adjustment groove adapted to the first connecting rod is opened at one end of the second connecting rod, and the position of the first connecting rod in the adjustment groove is adjustable, and the first connecting rod is L-shaped so that the two first connecting rods clamp the front and rear sides of the prefabricated road slab body.

[0012] Optionally, a plurality of limiting holes are provided on the surface of the first connecting rod, and a through hole matching the limiting holes is provided on the surface of the second connecting rod. A limiting rod for fixing the first connecting plate is provided inside the through hole, and the limiting rod penetrates the through hole and is plugged into the limiting hole at the same time. A second spring is provided on the outside of the limiting rod, and one end of the second spring is fixedly connected to the surface of the second connecting rod.

[0013] Optionally, the adjustment mechanism includes an adjusting screw and a movable groove, the movable groove is opened on the lower surface of the lifting beam, the connecting seat is slidably arranged inside the movable groove, the adjusting screw is arranged on one side of the lifting beam and passes through the interior of the movable groove, and the two ends of the outer circular surface of the adjusting screw are respectively provided with threads in opposite directions. The adjusting screw passes through two connecting seats at the same time and is threadedly connected to the connecting seats. The movable groove is rectangular, and the connecting seat is adapted to the shape of the movable groove.

[0014] Optionally, a pull ring is fixedly connected to the back side of the hanging frame.

[0015] The utility model provides a prefabricated road slab hoisting structure, which has the following beneficial effects:

[0016] 1. By setting a tensioning mechanism, during the hoisting process, the rope winder tightens the second hoisting rope, and while the second hoisting rope is tightened, the bottom fixed plates are pulled closer to each other. In the process of the fixed plates approaching, the bottom movable plate is driven to move together, and the hinged rod on the outside of the movable plate is further driven to rotate, so that the hoisting frame connected to the other end of the hinged rod is connected to the bottom of the prefabricated road slab body, and the lifting plates on the two hoisting frames are clamped on the lower surface of the prefabricated road slab body, so that the prefabricated road slab body can be hoisted, thereby improving the efficiency of hoisting the prefabricated road slab body, and the hoisting operation is convenient and quick, and there is no need to preset holes on the prefabricated road slab body.

[0017] 2. By coordinating the first connecting rod and the second connecting rod, the position of the first connecting rod can be adjusted so that the first connecting rod can be clamped on the other two sides of the prefabricated road slab body, further fixing the threshold road slab body and reducing the possibility of sliding.

[0018] 3. By setting the adjusting screw on one side of the hanging frame, the distance between the connecting seats inside the hanging frame can be adjusted by rotating the adjusting screw, thereby further improving the application range of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the prefabricated road slab body when it is hoisted in the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the overall bottom structure of the utility model;

[0022] Figure 4 This is a schematic structural diagram of the first connecting rod and the second connecting rod of the utility model;

[0023] Figure 5 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0024] Figure 6 For this utility model Figure 3 Enlarged structural diagram at point B in the middle.

[0025] In the figure: 1. lifting beam; 2. prefabricated road slab body; 3. lifting frame; 4. lifting plate; 5. first lifting rope; 6. lifting ring; 7. connecting seat; 10. hinged rod; 11. movable seat; 12. fixed plate; 13. second lifting rope; 14. first connecting rod; 15. second connecting rod; 16. adjusting screw; 17. movable groove; 19. guide column; 20. first spring; 21. stopper; 22. adjusting groove; 23. limiting hole; 24. through hole; 25. limiting rod; 26. second spring; 27. pull ring; 28. rope winding machine. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 6 The utility model provides a technical solution: a prefabricated road slab lifting structure, including a lifting beam 1 and a lifting frame 3, two lifting frames 3 are provided, and are symmetrically arranged at the bottom of the lifting beam 1 to fix the prefabricated road slab body 2, the side of the lifting frame 3 is tightly pressed against one side of the prefabricated road slab body 2, and one side of the bottom of the lifting frame 3 is provided with a lifting plate 4 arranged vertically inward, and two slidable connecting seats 7 are provided on the lower surface of the lifting beam 1, and at least two first lifting ropes 5 are provided at the bottom of the connecting seat 7, which are connected to the lifting frame 3 through the first lifting rope 5, and the top of the lifting beam 1 is fixedly connected with a lifting ring 6.

[0028] An adjusting mechanism for adjusting the distance between the connecting seats 7 is provided inside the hoisting beam 1 , and a tightening mechanism for tightening the hoisting frames 3 is provided between the two hoisting frames 3 .

[0029] When the lifting device is lifted, the lifting beam 1 is moved to the top of the prefabricated road slab body 2 by a lifting equipment such as a crane, and the spacing between the two connecting seats 7 is adjusted by an adjusting mechanism so that the spacing between the two is smaller than the width of the prefabricated road slab body 2. The operator pulls the lifting frame 3 to move outward, and at the same time, the lifting equipment lowers the lifting beam 1 so that the supporting plate 4 on one side of the lifting frame 3 can be stuck on the lower surface of the prefabricated road slab body 2. At this time, the second lifting rope 13 is tightened by the tensioning mechanism. When the second lifting rope 13 is tightened, the outer lifting frame 3 will be driven to retract inward, thereby making the connection between the outer lifting frame 3 and the prefabricated road slab body 2 more firm, which is more convenient and safer during lifting.

[0030] In this embodiment, as a preferred solution, the tensioning mechanism includes a hinged rod 10, a movable seat 11 and a fixed plate 12. The hinged rod 10 is hingedly set on one side of the lifting frame 3, and the hinged rod 10 is hingedly connected to the movable seat 11 on the side away from the lifting frame 3. The fixed plate 12 is fixedly connected to the upper surface of the movable seat 11, and the top of the fixed plate 12 is fixedly connected to the second lifting rope 13. A rope winding machine 28 is provided in the middle of the lifting beam 1 for tightening the second lifting rope 13. The second lifting rope 13 is wrapped around the rotating part of the rope winding machine 28. A guide column 19 is connected to the inside of the fixed plate 12, and a first spring 20 is provided between the two fixed plates 12 and is sleeved on the side of the guide column 19. Both ends of the guide column 19 are fixedly connected with a block 21.

[0031] During the operation of the rope winding machine 28, the second lifting rope 13 can be continuously wound on the output end of the rope winding machine 28. When the second lifting rope 13 is tightened, the fixed plate 12 connected at one end will be pulled to move, so that the distance between the two fixed plates is reduced. When the fixed plate 12 moves, the movable seat 11 at the bottom is driven to move. When the movable seat 11 moves inward, the external hinged rod 10 will rotate, so that the lifting frame 3 connected to the other end of the hinged rod 10 moves inward, so that the lifting bracket clamps and fixes the prefabricated road slab body 2. The first spring 20 is a compression spring. After the prefabricated road slab body 2 is lowered, the rope winding machine 28 When the second lifting rope 13 is loosened, the first spring 20 will push the fixed plates 12 on both sides outward, and the fixed plates 12 will drive the moving seat 11 to move outward. During the outward movement of the moving seat 11, the hinged rod 10 will be driven to deflect, thereby pushing the lifting frame 3 outward, so that the lifting frame 3 is separated from the prefabricated road slab body 2. The guide column 19 can limit the moving direction of the fixed plate 12 while also supporting the first spring 20 sleeved on the outside to prevent the first spring 20 from radial deformation. The blocks 21 set at both ends of the guide column 19 can prevent the fixed plate 12 from escaping from the guide column 19, thereby improving safety during use.

[0032] In this embodiment, as a preferred solution, a first connecting rod 14 and a second connecting rod 15 are provided on the outer side of the movable seat 11, and the second connecting rod 15 is fixedly connected to the side of the movable seat 11. An adjustment groove 22 adapted to the first connecting rod 14 is provided at one end of the second connecting rod 15, and the position of the first connecting rod 14 is adjustable in the adjustment groove 22. The first connecting rod 14 is L-shaped so that the two first connecting rods clamp the front and rear side surfaces of the prefabricated road slab body 2. A plurality of limiting holes 23 are provided on the surface of the first connecting rod 14, and a through hole 24 adapted to the limiting hole 23 is provided on the surface of the second connecting rod 15. A limiting rod 25 for fixing the first connecting plate is provided inside the through hole 24. The limiting rod 25 penetrates the through hole 24 and is plugged into the limiting hole 23 at the same time. A second spring 26 is sleeved on the outside of the limiting rod 25, and one end of the second spring 26 is fixedly connected to the surface of the second connecting rod 15.

[0033] When the movable seat 11 moves, the second connecting rod 15 fixed on the outside will be driven to move, and the second connecting rod 15 will further drive the first connecting rod 14 to move, so that the L-shaped protrusion of one section of the first connecting rod 14 can clamp the two sides of the prefabricated road slab body 2, reducing the shaking of the prefabricated road slab. The first connecting rod 14 can be telescopically adjusted within the second connecting rod 15. When hoisting prefabricated road slab bodies 2 of different lengths, the extension length of the first connecting rod 14 can be adjusted. During adjustment, the limiting rod 25 is pulled upward to disengage the limiting rod 25 from the limiting hole 23. At this time, the extension length of the first connecting rod 14 can be slid and adjusted. After sliding to the appropriate position, the through hole 24, the limiting hole 23 and the limiting rod 25 are aligned. The second spring 26 is a tension spring. After loosening the limiting rod 25, the second spring 26 will pull the limiting rod 25 downward, so that the limiting rod 25 is inserted into the limiting hole 23 to fix the extension length of the first connecting rod 14.

[0034] In this embodiment, as a preferred solution, the adjustment mechanism includes an adjusting screw 16 and a movable groove 17. The movable groove 17 is opened on the lower surface of the lifting beam 1, and the connecting seat 7 is slidably arranged inside the movable groove 17. The adjusting screw 16 is arranged on one side of the lifting beam 1 and penetrates into the interior of the movable groove 17. The two ends of the outer circular surface of the adjusting screw 16 are respectively provided with threads in opposite directions. The adjusting screw 16 penetrates the two connecting seats 7 at the same time and is threadedly connected to the connecting seats 7. The cross-section of the movable groove 17 is rectangular, and the connecting seat 7 is adapted to the shape of the movable groove 17, so as to prevent the connecting seat 7 from rotating when moving in the movable groove.

[0035] The adjusting screw 16 penetrates into the interior of the movable groove 17 and is threadedly connected to the two connecting seats 7 set in the movable groove 17, and the thread directions are opposite. When the adjusting screw 16 is rotated, the two connecting seats 7 will be driven to move inward or outward at the same time, and the adjusting seat will further drive the lifting frame 3 connected at the bottom to move, thereby adjusting the distance between the lifting frames 3. When the adjusting screw 16 penetrates into the movable groove 17, it is staggered with the rope winding machine 28. When the second lifting rope 13 penetrates into the lifting beam 1, a limit ring is used to limit it to prevent the adjusting screw 16 from interfering with the second lifting rope 13 during rotation. The connecting seat 7 and the movable groove 17 are both rectangular. When the adjusting screw 16 rotates, the movable groove 17 can limit the connecting seat 7 to prevent the connecting seat 7 from rotating with the adjusting screw 16.

[0036] In this embodiment, as a preferred solution, a pull ring 27 is fixedly connected to the back side of the hanging frame 3 .

[0037] The pull ring 27 is arranged on the outside of the hoisting frame 3, which is convenient for the operator to pull the hoisting frame 3 to move outward during hoisting.

[0038] In the present invention, the working steps of the device are as follows:

[0039] 1. Before lifting, rotate the adjusting screw 16 to adjust the spacing of the connecting seat 7 in the movable groove 17 to be smaller than the width of the prefabricated road body. Use the lifting equipment to hook the lifting ring 6 on the top of the lifting beam 1 and lower the lifting beam 1. In the process of lowering the lifting beam 1, the user pulls the pull ring 27 on the outside of the lifting frame 3 to pull the lifting frame 3 outward, and places the lifting plate 4 on one side of the lifting frame 3 on the bottom of the prefabricated road slab body 2.

[0040] 2. After the lifting frame 3 is placed in the correct position, start the rope winding machine 28 to tighten the second lifting rope 13, so that the second lifting rope 13 pulls the outer lifting frame 3 inward, so that the lifting frame 3 is stuck on the lateral sides of the prefabricated road slab. At the same time, pull the limit column outward and adjust the extension length of the first connecting rod 14 so that the first connecting rod 14 is stuck on the longitudinal sides of the prefabricated road slab body 2 to fix the prefabricated road slab body 2.

[0041] 3. After fixing, lift the lifting beam 1, move the prefabricated road slab body 2 to the required position and then lower the lifting beam 1. At the same time, the rope winding machine 28 releases the second lifting rope 13 to release the limit of the lifting frame 3. The construction personnel pull the lifting frame 3 outward to separate the lifting plate 4 from the prefabricated road slab body 2 and install it in place. Then move it to the next prefabricated road slab body 2 for lifting operation.

[0042] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0043] The above is a detailed introduction to the specific implementation methods provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A prefabricated road slab hoisting structure, characterized by: It comprises a lifting beam (1) and a lifting frame (3), wherein two lifting frames (3) are provided and symmetrically arranged at the bottom of the lifting beam (1) for fixing the prefabricated road slab body (2), the side of the lifting frame (3) is pressed against one side of the prefabricated road slab body (2), one side of the bottom of the lifting frame (3) is provided with a vertically inwardly arranged lifting plate (4), the lower surface of the lifting beam (1) is provided with two slidable connecting seats (7), the bottom of the connecting seat (7) is provided with at least two first lifting ropes (5), the connecting seat (7) is connected to the lifting frame (3) through the first lifting ropes (5), and the top of the lifting beam (1) is fixedly connected with a lifting ring (6); An adjusting mechanism for adjusting the spacing between the connecting seats (7) is provided inside the hoisting crossbeam (1), and a tensioning mechanism for tightening the hoisting frames (3) is provided between the two hoisting frames (3).

2. The prefabricated road slab hoisting structure according to claim 1, characterized in that: The tensioning mechanism includes a hinged rod (10), a movable seat (11) and a fixed plate (12), wherein the hinged rod (10) is hingedly arranged on one side of the hoisting frame (3), and the side of the hinged rod (10) away from the hoisting frame (3) is hingedly connected to the movable seat (11), and the fixed plate (12) is fixedly connected to the upper surface of the movable seat (11), and the top of the fixed plate (12) is fixedly connected to the second hoisting rope (13), and a rope winding machine (28) is provided in the middle of the hoisting beam (1) for tightening the second hoisting rope (13), and the second hoisting rope (13) is wound around the rotating part of the rope winding machine (28).

3. The prefabricated road slab hoisting structure according to claim 2, characterized in that: A guide column (19) is connected through the interior of the fixing plate (12), a first spring (20) sleeved on the side of the guide column (19) is provided between the two fixing plates (12), and both ends of the guide column (19) are fixedly connected with a stopper (21).

4. A prefabricated road slab hoisting structure according to claim 2 or 3, characterized in that: A first connecting rod (14) and a second connecting rod (15) are provided on the outer side of the movable seat (11). The second connecting rod (15) is fixedly connected to the side of the movable seat (11). An adjustment groove (22) adapted to the first connecting rod (14) is provided at one end of the second connecting rod (15). The position of the first connecting rod (14) is adjustable in the adjustment groove (22). The first connecting rod (14) is L-shaped so that the two first connecting rods clamp the front and rear side surfaces of the prefabricated road slab body (2).

5. The prefabricated road slab hoisting structure according to claim 4, characterized in that: The surface of the first connecting rod (14) is provided with a plurality of limiting holes (23), the surface of the second connecting rod (15) is provided with a through hole (24) adapted to the limiting hole (23), the interior of the through hole (24) is provided with a limiting rod (25) for fixing the first connecting plate, the limiting rod (25) penetrates the through hole (24) and is plugged into the limiting hole (23), the exterior of the limiting rod (25) is provided with a second spring (26), and one end of the second spring (26) is fixedly connected to the surface of the second connecting rod (15).

6. A prefabricated road slab hoisting structure according to any one of claims 1 to 3, characterized in that: The adjusting mechanism comprises an adjusting screw (16) and a movable groove (17), wherein the movable groove (17) is provided on the lower surface of the hoisting beam (1), and the connecting seat (7) is slidably arranged inside the movable groove (17). The adjusting screw (16) is arranged on one side of the hoisting beam (1) and penetrates into the movable groove (17). Both ends of the outer cylindrical surface of the adjusting screw (16) are respectively provided with threads in opposite directions. The adjusting screw (16) simultaneously penetrates two connecting seats (7) and is threadedly connected to the connecting seats (7). The movable groove (17) is rectangular, and the shapes of the connecting seat (7) and the movable groove (17) are adapted.

7. A prefabricated road slab hoisting structure according to any one of claims 1 to 3, characterized in that: A pull ring (27) is fixedly connected to the back of the hanging frame (3).

Images