Prefabricated part hoisting device

Abstract

The invention relates to the technical field of component hoisting, in particular to a prefabricated component hoisting device which comprises a hoisting rod poured in a component preformed hole and a bottom fixing part arranged on a mold, the top of the bottom fixing part is fixedly connected with a positioning rod penetrating through and inserted into an inner cavity of the hoisting rod, and the top of the hoisting rod is in threaded connection with a threaded connecting rod. According to the prefabricated part hoisting device, during hoisting, the multiple hoisting rods bear the downward gravity of a component, at the moment, one part of the gravity acts on the connecting positions of the threaded connecting rods and the hoisting rods, the other part of the gravity acts between the stress bearing blocks and the clamping grooves, and the situation that threads on the surfaces of the threaded connecting rods bear too large stress, so that misalignment is caused can be prevented; in the later period, the threaded connecting rod cannot be effectively taken down, after hoisting is completed, the component is moved to a designated position, hoisting is completed, the bottom fixing piece is pulled out of the hoisting rod, then the hoisting rod is knocked from top to bottom, the hoisting rod is knocked out of the reserved hole, and then the threaded connecting rod is taken down and separated.

Description

Technical Field

[0001] The invention relates to the technical field of component hoisting, in particular to a prefabricated component hoisting device. Background Art

[0002] In recent years, the construction industrialization characterized by standardized design, factory production, assembly construction, integrated decoration, etc. has become an inevitable trend in the development of my country's construction industry. At present, the production of prefabricated components has problems such as complicated processes, high labor intensity, low work efficiency, large floor space, high production costs, and poor surface flatness of manually finished products. The conventional practice for temporary lifting of prefabricated components in the factory is to reserve lifting rings (steel bending anchors) on the prefabricated wall panels, or to reserve lifting nails, lifting pipes and other embedded parts for lifting. The disadvantage of this lifting method is that after the lifting is completed, the protruding plate steel bars must be cut off and the cut parts must be repaired. There are product quality problems such as color difference in the appearance of the product. This method has complicated processes and low production efficiency, and wastes embedded materials, repair materials, labor and other materials.

[0003] According to a prefabricated component suspension rod lifting structure described in Patent No. CN218149893U, when the prefabricated component is used for lifting, the threads on the surface of the threaded connecting rod are subjected to excessive force, resulting in misalignment, and the threaded connecting rod cannot be effectively removed later. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a prefabricated component hoisting device to solve the above-mentioned problems.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions: a prefabricated component hoisting device, comprising a suspension rod cast in a reserved hole of the component and a bottom fixing piece arranged on a mold, the top of the bottom fixing piece is fixedly connected with a positioning rod penetrating and plugged into the inner cavity of the suspension rod, the top of the suspension rod is threadedly connected with a threaded connecting rod, the top of the threaded connecting rod is fixedly connected with a lifting ring connected to a lifting mechanism, and the surface of the suspension rod is a round table surface with a small top and a large bottom;

[0006] The cam is provided with a plurality of locking plates, and the locking plates are provided with a plurality of locking plates, the locking plates having a plurality of locking plates and a plurality of locking plates respectively. The receiving block stretches the reset spring to move outward and is inserted into the card slot in the hanger rod. When the hanger rod is lifted, a part of the gravity is borne by the force-bearing receiving block, which effectively reduces the external force received by the surface thread of the threaded connecting rod. It is more convenient to unscrew the threaded connecting rod in the later stage. After the installation is completed, pouring is carried out. After waiting for the concrete to reach the concrete demoulding strength, the lifting ring is hung on the lifting chain for lifting. During lifting, multiple hangers all bear the downward gravity of the component. At this time, part of the gravity acts on the connection between the threaded connecting rod and the hanger rod, and the other part acts between the force-bearing receiving block and the card slot, which can prevent the surface thread of the threaded connecting rod from being subjected to excessive force, resulting in misalignment, and the threaded connecting rod cannot be effectively removed in the later stage. After the lifting is completed, the component is moved to the designated position to complete the lifting, the bottom fixing is pulled out of the hanger rod, and then the hanger rod is knocked from top to bottom to knock it out of the reserved hole, and then the threaded connecting rod is removed for separation.

[0007] As a further solution of the present invention: the surfaces of the suspension rod and the bottom fixing member are wrapped with waterproof membrane. The waterproof membrane is used for wrapping, which can effectively protect the suspension rod while allowing the internal components to be reused.

[0008] As a further solution of the present invention: when the reset spring is in the initial state, the two force-bearing blocks are located in the inner cavity of the connecting tube, and the force-bearing blocks can be limited by the reset spring to prevent them from getting stuck.

[0009] As a further solution of the present invention: the push rod is a truncated cone rod which is larger at the top and smaller at the bottom, and the opposite sides of the two force-bearing blocks are provided with inclined surfaces which are adapted to the surface of the push rod. The threaded connecting rod is screwed into the interior of the suspension rod, and the plug-in rod drives the push rod to move downward to squeeze the side of the force-bearing block. The two force-bearing blocks stretch the reset springs to move outward and are plugged into the clamping grooves in the suspension rod. When the suspension rod is lifted, part of the gravity is borne by the force-bearing blocks, which effectively reduces the external force acting on the surface of the threaded connecting rod, making it more convenient to unscrew the threaded connecting rod later.

[0010] As a further solution of the present invention: the surface of the suspension rod is plated with a protective layer, and the protective layer is zinc.

[0011] Compared with the prior art, the present invention has the following beneficial effects: during lifting, multiple lifting rods all bear the downward gravity of the component. At this time, part of the gravity acts on the connection between the threaded connecting rod and the lifting rod, and the other part acts between the force-bearing block and the clamping groove, which can prevent the surface thread of the threaded connecting rod from being subjected to excessive force, resulting in misaligned threads, and the threaded connecting rod cannot be effectively removed later. After the lifting is completed, the component is moved to the designated position to complete the lifting, the bottom fixing part is pulled out of the lifting rod, and then the lifting rod is knocked from top to bottom to knock it out of the reserved hole, and then the threaded connecting rod is removed for separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 It is a structural schematic diagram of the suspension rod of the present invention;

[0014] Figure 3 It is a structural cross-sectional view of the suspension rod of the present invention;

[0015] Figure 4 For the present invention Figure 3 A partial enlarged view of point A in the middle.

[0019] In the figure: 1. lifting ring; 2. lifting rod; 3. bottom fixing piece; 4. positioning rod; 5. round table; 6. threaded connecting rod; 7. plug-in rod; 8. connecting tube; 9. push rod; 10. sliding groove; 11. load-bearing block; 12. clamping groove; 13. reset spring; 14. round table rod; 15. inclined surface; 16. waterproof membrane; 17. mold. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] See also Figure 1-4 The present invention provides a technical solution: a prefabricated component hoisting device, comprising a suspension rod 2 cast in a reserved hole of a component and a bottom fixing member 3 arranged on a mold 17, the top of the bottom fixing member 3 is fixedly connected with a positioning rod 4 penetrating and plugged into the inner cavity of the suspension rod 2, the top of the suspension rod 2 is threadedly connected with a threaded connecting rod 6, the top of the threaded connecting rod 6 is fixedly connected with a lifting ring 1 connected to a lifting mechanism, and the surface of the suspension rod 2 is a round table surface 5 with a small top and a large bottom;

[0022] The inner cavity of the suspension rod (2) is movably connected to a connecting tube (8), and the inner cavity of the connecting tube (8) is slidably connected to a force-bearing block (11) through a sliding groove (10). One side of the force-bearing block (11) passes through and extends to the inner cavity of the suspension rod (2). The inner cavity of the suspension rod (2) is provided with a clamping groove (12) clamped with the force-bearing block (11). Two force-bearing blocks (11) are provided, and the opposite sides of the two force-bearing blocks (11) are fixedly connected to a return spring (13). The bottom of the threaded connecting rod (6) is fixedly connected to a plug-in rod ( 7), the inner cavity of the connecting tube (8) is provided with a plug-in groove adapted to the plug-in rod (7), the end of the plug-in rod (7) is fixedly connected with a push rod (9) connected to the side of the force-bearing block (11), the reserved hole of the component is positioned according to the drawing of the component, the bottom fixing part (3) of the lifting device is installed on the table of the mold (17) to limit the position, the bottom end of the suspension rod (2) is plugged into the positioning rod (4) at the top of the bottom fixing part (3), and then the threaded connecting rod (6) is screwed into the inner cavity of the suspension rod (2), and the plug-in rod (7) drives the push rod (9) to move downward, so as to bear the force The side of the block (11) is squeezed, and the two force-bearing blocks (11) stretch the reset spring (13) to move outward and are inserted into the clamping groove (12) in the suspension rod (2). When the suspension rod (2) is lifted, a part of the gravity is borne by the force-bearing block (11), which effectively reduces the external force on the surface thread of the threaded connecting rod (6). It is more convenient to screw out the threaded connecting rod (6) later. After installation is completed, pouring is carried out. After waiting for the concrete to reach the concrete demoulding strength, the lifting chain is hung on the lifting ring (1) for lifting. During lifting, multiple suspension rods (2) are subjected to structural The downward gravity of the component, at this time, part of the gravity acts on the connection between the threaded connecting rod (6) and the suspension rod (2), and the other part acts between the load-bearing block (11) and the clamping groove (12), which can prevent the threaded connecting rod (6) from being subjected to excessive force on the surface of the thread, resulting in misalignment and the inability to effectively remove the threaded connecting rod (6) later. After the lifting is completed, the component is moved to the designated position to complete the lifting, and the bottom fixing piece (3) is pulled out of the suspension rod (2), and then the suspension rod (2) is knocked from top to bottom to knock it out of the reserved hole, and then the threaded connecting rod (6) is removed for separation.

[0023] The surfaces of the suspension rod (2) and the bottom fixing member (3) are both wrapped with waterproof coiled material (16). The waterproof coiled material (16) is used for wrapping, which not only enables the suspension but also plays an effective protective role, and the internal components can be reused.

[0024] When the reset spring (13) is in the initial state, the two force-bearing blocks (11) are located in the inner cavity of the connecting tube (8), and the reset spring (13) can limit the force-bearing blocks (11) to prevent them from getting stuck.

[0025] The push rod (9) is a truncated cone rod (14) that is larger at the top and smaller at the bottom. The two opposite sides of the two load-bearing blocks (11) are each provided with an inclined surface (15) that matches the surface of the push rod (9). The threaded connecting rod (6) is screwed into the interior of the suspension rod (2). The plug-in rod (7) drives the push rod (9) to move downward, squeezing the side of the load-bearing block (11). The two load-bearing blocks (11) stretch the reset spring (13) to move outward and are plugged into the clamping groove (12) in the suspension rod (2). When the suspension rod (2) is lifted, part of the gravity is borne by the load-bearing block (11), effectively reducing the external force on the surface of the threaded connecting rod (6), making it more convenient to screw out the threaded connecting rod (6) later.

[0026] The surface of the suspension rod (2) is plated with a protective layer, which is zinc.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A prefabricated component hoisting device, comprising a hanger (2) cast in a pre-reserved hole of a component and a bottom fixing member (3) arranged on a mold (17), characterized in that: The top of the bottom fixing member (3) is fixedly connected with a positioning rod (4) which penetrates through and is inserted into the inner cavity of the suspension rod (2); the top of the suspension rod (2) is threadedly connected with a threaded connecting rod (6); the top of the threaded connecting rod (6) is fixedly connected with a lifting ring (1) connected to the lifting mechanism; the surface of the suspension rod (2) is a round table surface (5) which is smaller at the top and larger at the bottom; The inner cavity of the suspension rod (2) is movably connected to a connecting tube (8), and the inner cavity of the connecting tube (8) is slidably connected to a force-bearing block (11) through a sliding groove (10). One side of the force-bearing block (11) passes through and extends to the inner cavity of the suspension rod (2). The inner cavity of the suspension rod (2) is provided with a clamping groove (12) clamped with the force-bearing block (11). There are two force-bearing blocks (11), and the opposite sides of the two force-bearing blocks (11) are fixedly connected with a return spring (13). The bottom of the threaded connecting rod (6) is fixedly connected with a plug-in rod (7), and the inner cavity of the connecting tube (8) is provided with a plug-in groove adapted to the plug-in rod (7). The end of the plug-in rod (7) is fixedly connected with a push rod (9) connected to the side of the force-bearing block (11).

2. The prefabricated component hoisting device according to claim 1, characterized in that: The surfaces of the suspension rod (2) and the bottom fixing member (3) are both covered with waterproof coiled material (16).

3. The prefabricated component hoisting device according to claim 1, characterized in that: When the reset spring (13) is in the initial state, the two force-bearing blocks (11) are located in the inner cavity of the connecting tube (8).

4. The prefabricated component hoisting device according to claim 1, characterized in that: The push rod (9) is a truncated cone rod (14) that is larger at the top and smaller at the bottom. The two opposite sides of the two force-bearing blocks (11) are each provided with an inclined surface (15) that matches the surface of the push rod (9).

5. The prefabricated component hoisting device according to claim 1, characterized in that: The surface of the suspension rod (2) is plated with a protective layer.

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