A modular assembled safety lifting device

Abstract

The present invention relates to the field of prefabricated buildings, and in particular to a modular prefabricated safety lifting device, comprising four symmetrically distributed cross bars, wherein a combined structure is installed on the outer wall of one end of the cross bars close to each other, and an adjustment hole is provided on the top of the outer wall of the other end of the cross bars, and a limiting groove is provided on the outer wall of both sides of the cross bars at the adjustment hole, and an adjustment structure is installed on the outer wall of the cross bars at the adjustment hole and the limiting groove; the adjustment structure comprises an adjustment plate slidably connected to the outer wall of the cross bars at the limiting groove, positioning holes provided at intervals on the outer wall at the center of the adjustment plate and at the center of one side of the cross bars, and a fixed shaft inserted in the positioning hole. The present invention removes the pin shaft in the pin hole at one end of the fixed shaft and unscrews the fastening nut, adjusts the position of pulley one in the adjustment hole, and the adjustment plate slides from bottom to top to adjust the position of pulley two, and after the adjustment is completed, the fixed shaft is inserted into the positioning hole, so as to facilitate adjustment according to the size of the prefabricated part.

Description

Technical Field

[0001] The invention relates to the technical field of assembled buildings, and in particular to a modular assembled safety lifting device. Background Art

[0002] With the development of modern industrial technology, houses can be built in batches and sets like machine production. All you need to do is transport the prefabricated house components to the construction site and assemble them.

[0003] Prefabricated buildings are buildings assembled on site from prefabricated components. According to the form and construction method of prefabricated components, they are divided into five types: block buildings, plate buildings, box buildings, skeleton plate buildings and lifting plate and lifting floor buildings. The prefabricated structural parts are transported to the designated area and the prefabricated components are combined and spliced ​​using crane equipment to complete the assembly;

[0004] However, when the crane is lifting the prefabricated building, the crane is connected to the prefabricated parts through the lifting rope, which causes the prefabricated parts to be unbalanced and offset after they are floated, making it inconvenient to splice and assemble. Summary of the invention

[0005] The purpose of the present invention is to propose a modular assembled safety lifting device in view of the above-mentioned problems and shortcomings: the cross bar, the force-bearing frame and the force-bearing rod form a balance frame at the same time, so that the force applied by the lifting rope on the prefabricated part is the same, avoiding the displacement of the prefabricated part during lifting, facilitating lifting, maintaining the balance of lifting, solving the balance problem in the lifting process and improving the stability of lifting.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A modular assembled safety lifting device comprises four symmetrically distributed cross bars, a combined structure is installed on the outer wall of one end of the cross bars close to each other, and an adjustment hole is opened on the top of the outer wall of the other end of the cross bar, limiting grooves are opened on the outer walls on both sides of the cross bar at the adjustment holes, and an adjustment structure is installed on the outer wall of the cross bar at the adjustment hole and the limiting groove; the adjustment structure comprises an adjustment plate slidably connected to the outer wall of the cross bar at the limiting groove, positioning holes opened at intervals at the outer wall at the center of the adjustment plate and the center of one side of the cross bar, a fixed shaft inserted in the positioning hole, a pulley 1 rotatably connected to the center of the fixed shaft, and a pulley 2 arranged between the bottom ends of the adjustment plates; the combined structure comprises a force frame and a force rod.

[0008] Preferably, a floating shaft is rotatably connected at the center of the pulley 2, and a floating groove is opened at the center of the outer wall on one side close to one end of the adjustment plate, and the outer walls at both ends of the floating shaft are slidably connected in the floating groove.

[0009] Preferably, the pulley is rotatably connected to the outer wall of the fixed shaft at the adjustment hole, and a thread groove is provided on the outer wall of one end of the fixed shaft, a fastening nut is threadedly connected to the outer wall of the fixed shaft at the thread groove, and a pin hole is provided on the fixed shaft at the thread groove, and a pin shaft is inserted in the pin hole.

[0010] Preferably, the outer wall of the limit groove of the cross bar is welded with equidistantly distributed positioning protrusions on both sides of the positioning hole, and the outer wall of one side of the adjustment plates close to each other is provided with a positioning groove at the positioning protrusion.

[0011] Preferably, the outer wall of one side of the adjustment plate is slidably connected to the outer wall of the limit groove and the outer wall of the positioning protrusion, and the outer walls of the floating shaft are rotatably connected with hooks at both ends, and the outer wall of one end of the fixed shaft and the outer wall of one end of the fastening nut are respectively in contact with the outer wall of the adjustment plate.

[0012] Preferably, connecting grooves 2 are provided on both sides of the outer wall at one end of the cross bar, and connecting grooves 1 are provided on the outer walls of the cross bars close to one end. Connecting protrusions are welded on the outer walls of the force frame and the force rod close to the cross bar, and fixing holes are provided at the connecting grooves 1 and 2 respectively on the cross bar, the force frame and the force rod.

[0013] Preferably, the bottom outer wall of one end of the cross bar is connected to a lifting rope, and the outer wall of the other end of the lifting rope is provided with a lifting ring, the other end of the lifting rope is fixed to the outer wall of the lifting ring, and the outer wall of the lifting rope is respectively wrapped around the outer wall of pulley one and pulley two.

[0014] Preferably, a second positioning groove is provided on the top outer wall of the cross bar at the lifting rope, and a first positioning groove is provided at the center of the top outer wall of the force-bearing frame at the lifting ring, and the lifting rope and the lifting ring are placed in the second positioning groove and the first positioning groove respectively.

[0015] The beneficial effects of the present invention are:

[0016] 1. At the same time, the crossbar, the force-bearing frame and the force-bearing rod form a balance frame, so that the force exerted by the lifting rope on the prefabricated part is the same, avoiding the deviation of the prefabricated part during lifting, facilitating lifting and maintaining the balance of lifting;

[0017] 2. The crane pulls the lifting rope upward to lift the prefabricated part. Pulley 1 and pulley 2 cooperate with the lifting rope to form a simple labor-saving structure, which reduces the weight of the prefabricated part carried by the crane, saves effort, facilitates lifting, and reduces the load on the equipment;

[0018] 3. Remove the pin in the pin hole at one end of the fixed shaft and unscrew the fastening nut, adjust the position of pulley 1 in the adjustment hole, slide the adjustment plate from bottom to top to adjust the position of pulley 2, and insert the fixed shaft into the positioning hole after the adjustment is completed, so as to facilitate adjustment according to the size of the prefabricated part;

[0019] 4. Use force rods and force frames to splice the cross bars, and use long rod screws and other parts to screw into the fixing holes to fix the cross bars, force rods and force frames into a whole, which is convenient for assembly and disassembly, and easy for transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a modular assembled safety lifting device proposed by the present invention;

[0021] Figure 2 A schematic diagram of the structure of a cross bar, a stress-bearing rod and a stress-bearing frame of a modular assembled safety lifting device proposed by the present invention;

[0022] Figure 3 A schematic diagram of the structure of one end of a crossbar of a modular assembled safety lifting device proposed by the present invention;

[0023] Figure 4 A schematic diagram of the crossbar deployment structure of a modular assembled safety lifting device proposed by the present invention;

[0024] Figure 5 A schematic diagram of a lifting rope connection structure of a modular assembled safety lifting device proposed by the present invention;

[0025] Figure 6 This is a schematic diagram of the stress-bearing frame and stress-bearing rod structure of a modular assembled safety lifting device proposed by the present invention.

[0026] In the figure: 1 cross bar, 2 connecting groove 1, 3 connecting groove 2, 4 force frame, 5 force rod, 6 connecting protrusion, 7 fixing hole, 8 combined structure, 9 adjusting hole, 10 limiting groove, 11 adjusting plate, 12 positioning hole, 13 fixed shaft, 14 fastening nut, 15 pin hole, 16 pulley 1, 17 positioning protrusion, 18 positioning groove, 19 floating groove, 20 floating shaft, 21 pulley 2, 22 hook, 23 adjusting structure, 24 lifting rope, 25 lifting ring, 26 positioning groove 1, 27 positioning groove 2. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Embodiment 1:

[0029] Reference Figure 1-2 and Figure 6A modular assembled safety lifting device comprises four cross bars 1 which are symmetrically distributed, a combined structure 8 is installed on the outer wall of one end of the cross bars 1 which is close to each other, and an adjustment hole 9 is opened on the top of the outer wall of the other end of the cross bars 1, and limiting grooves 10 are opened on the outer walls of both sides of the cross bars 1 at the adjusting holes 9, and an adjustment structure 23 is installed on the outer wall of the cross bars 1 at the adjusting holes 9 and the limiting grooves 10;

[0030] The combined structure 8 includes a force frame 4 and a force rod 5. The cross bar 1, the force rod 5 and the force frame 4 form a balance frame to ensure the balance of lifting. The cross bar 1, the force rod 5 and the force frame 4 are combined with connecting protrusions 6, connecting grooves 1 2 and connecting grooves 2 3 to facilitate assembly and disassembly, and to facilitate transfer and transportation.

[0031] Connecting grooves 2 3 are provided on both sides of the outer wall of one end of the cross bar 1, and connecting grooves 1 2 are provided on the outer walls of the cross bars 1 close to one end. Connecting protrusions 6 are welded to the outer walls of the force frame 4 and the force rod 5 on one side close to the cross bar 1. Fixing holes 7 are provided at the connecting grooves 1 2 and 2 3 of the cross bar 1, the force frame 4 and the force rod 5, respectively. At the same time, the cross bar 1, the force frame 4 and the force rod 5 form a balancing frame, so that the force applied by the lifting rope 24 on the prefabricated parts is the same, avoiding the displacement of the prefabricated parts during lifting and facilitating lifting.

[0032] The outer wall of the bottom of one end of the crossbar 1 is connected with a hanging rope 24, and the outer wall of the other end of the hanging rope 24 is provided with a hanging ring 25, the other end of the hanging rope 24 is fixed to the outer wall of the hanging ring 25, and the outer wall of the hanging rope 24 is respectively wound around the outer wall of the pulley 1 16 and the pulley 2 21;

[0033] A second positioning groove 27 is provided on the top outer wall of the cross bar 1 at the position of the hanging rope 24, and a first positioning groove 26 is provided at the center of the top outer wall of the force-bearing frame 4 at the position of the hanging ring 25. The hanging rope 24 and the hanging ring 25 are placed in the second positioning groove 27 and the first positioning groove 26 respectively. The second positioning groove 27 on the cross bar 1 and the first positioning groove 26 on the force-bearing frame 4 are used to organize the hanging rope 24 and the hanging ring 25 when they are not in use to prevent the hanging rope 24 from being scattered and tangled.

[0034] Embodiment 2:

[0035] Reference Figure 1-5 The adjusting structure 23 includes an adjusting plate 11 slidably connected to the outer wall of the cross bar 1 at the limiting groove 10, a positioning hole 12 arranged at intervals on the outer wall at the center of the adjusting plate 11 and the center of one side of the cross bar 1, a fixed shaft 13 inserted in the positioning hole 12, a pulley 16 rotatably connected at the center of the fixed shaft 13 and a pulley 21 arranged between the bottom ends of the adjusting plate 11, the pulley 16 and the pulley 21 are respectively a fixed pulley and a movable pulley, and one end of the lifting rope 24 is fixed in the cross bar 1, and the formed labor-saving structure reduces the force of the prefabricated parts when lifting the prefabricated parts, reduces the load of the crane, and facilitates lifting;

[0036] The center of the pulley 21 is rotatably connected with a floating shaft 20, and a floating groove 19 is opened at the center of the outer wall of one side close to each other at one end of the adjusting plate 11. The outer walls of both ends of the floating shaft 20 are slidably connected in the floating groove 19. When the crane lifts the prefabricated part through the lifting ring 25, the pulley 21 is subjected to force and slides through the floating shaft 20 with the lifting rope 24 to be slidably connected in the floating groove 19. The fixed shaft 13 on the cross bar 1 is pulled out from the positioning hole 12, and the pulley 16 can be removed from the adjusting hole 9. The pulley 16 is adjusted in the positioning holes 12 at different positions of the adjusting hole 9. Finally, the cross bar 1 is inserted into the positioning hole 12 to adjust the position of the pulley 16, so as to facilitate the adjustment of the position of the pulley 16.

[0037] The pulley 16 is rotatably connected to the outer wall of the fixed shaft 13 at the adjusting hole 9, and a thread groove is provided on the outer wall of one end of the fixed shaft 13, and a fastening nut 14 is threadedly connected to the outer wall of the fixed shaft 13 at the thread groove, and a pin hole 15 is provided on the fixed shaft 13 at the thread groove, and a pin shaft is inserted in the pin hole 15. After the outer wall of one end of the fixed shaft 13 contacts the outer wall of the adjusting plate 11, the fastening screw 14 is screwed in the thread groove for fastening, and the pin shaft is inserted into the pin hole 15 to limit the fastening screw 14 to prevent the screw from loosening and falling off, thereby ensuring the safety of lifting;

[0038] The outer wall of the limiting groove 10 of the cross bar 1 is welded with equidistantly distributed positioning protrusions 17 on both sides of the positioning hole 12, and the outer wall of the adjustment plate 11 close to one side is provided with a positioning groove 18 at the positioning protrusion 17. The adjustment plate 11 is fixed in the limiting groove 10 of the cross bar 1 by the fixing shaft 13 and the fastening screw 14. The positioning protrusion 17 cooperates with the positioning groove 18 to prevent the adjustment plate 11 from rotating while maintaining the sliding stability of the adjustment plate 11.

[0039] The outer wall of one side of the adjustment plate 11 is slidably connected to the outer wall of the limit groove 10 and the outer wall of the positioning protrusion 17, and the outer walls of the floating shaft 20 are rotatably connected with hooks 22 at both ends. The outer wall of one end of the fixed shaft 13 and the outer wall of one end of the fastening nut 14 are respectively in contact with the outer wall of the adjustment plate 11. After the fixed shaft 13 is removed from the positioning hole 12, the adjustment plate 11 loses its restriction and falls downward. The adjustment plate 11 is slidably connected to the outer wall of the positioning protrusion 17 at the pulley 16 through the positioning groove 18. The fixed shaft 13 is inserted into the positioning holes 12 of different heights on the adjustment plate 11 to adjust the position of the pulley 21.

[0040] Working principle: When in use, after reaching the specified position, use the force rod 5 and the force frame 4 to splice the cross bar 1, and insert the connecting protrusions 6 at both ends of the force frame 4 and the force rod 5 into the connecting groove 1 2 and the connecting groove 2 3 on the cross bar 1 respectively. After the splicing is completed, use long rod screws and other parts to screw into the fixing hole 7 to fix the cross bar 1, the force rod 5 and the force frame 4 into a whole. According to the size of the current hoisted prefabricated part, the position of the pulley 16 and the pulley 2 21 is adjusted, the pin in the pin hole 15 at one end of the fixed shaft 13 is removed and the fastening nut 14 is unscrewed, the fixed shaft 13 is pulled out from the adjusting plate 11 and the positioning hole 12 on the cross bar 1, and the position of the pulley 16 is adjusted in the adjusting hole 9. The adjusting plate 11 slides from bottom to top on the outer wall of the positioning protrusion 17 connected to the pulley 16, and the sliding adjustment plate 11 can adjust the position of the pulley 2 21 After the adjustment is completed, the fixed shaft 13 is inserted into the positioning hole 12, and the fastening screw 14 cooperates with the fixed shaft 13 to fix the adjusting plate 11 in the limiting groove 10 of the cross bar 1. After the adjustment is completed, the lifting rope 24 and the lifting ring 25 are respectively located in the positioning groove 27 of the cross bar 1 and the positioning groove 1 26 of the force frame 4. The hook of the crane lifts the cross bar 1 as a whole through the lifting ring 25, and uses the hook 22 on the outer wall of the floating shaft 20 to hang on the prefabricated part. The crane pulls the lifting rope 24 upward to lift the prefabricated part. The pulley 16 and the pulley 21 cooperate with the lifting rope 24 to form a simple labor-saving structure, which reduces the weight of the prefabricated part carried by the crane, is convenient for labor saving, and is convenient for lifting. At the same time, the cross bar 1, the force frame 4 and the force bar 5 form a balancing frame, so that the force applied by the lifting rope 24 on the prefabricated part is the same, which avoids the displacement of the prefabricated part during lifting and is convenient for lifting.

[0041] The exemplary embodiments of the present invention are described in detail with reference to the embodiments, but it is understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the present invention can be made without exceeding the scope of protection of the present invention, which is determined by the attached claims. The foregoing description of the specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different choices and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A modular assembled safety lifting device, comprising four symmetrically distributed cross bars (1), characterized in that: The outer wall of one end of the cross bar (1) close to each other is installed with a combined structure (8), and the top of the outer wall of the other end of the cross bar (1) is provided with an adjustment hole (9), the outer walls on both sides of the cross bar (1) are provided with limit grooves (10) at the adjustment hole (9), and the outer wall of the cross bar (1) at the adjustment hole (9) and the limit groove (10) is installed with an adjustment structure (23); The adjustment structure (23) comprises an adjustment plate (11) slidably connected to the outer wall of the cross bar (1) at the limit groove (10), positioning holes (12) arranged at intervals on the outer wall at the center of the adjustment plate (11) and at the center of one side of the cross bar (1), a fixed shaft (13) inserted into the positioning hole (12), a pulley 1 (16) rotatably connected to the center of the fixed shaft (13), and a pulley 2 (21) arranged between the bottom ends of the adjustment plate (11); The combined structure (8) comprises a force-bearing frame (4) and a force-bearing rod (5).

2. A modular assembled safety lifting device according to claim 1, characterized in that: A floating shaft (20) is rotatably connected at the center of the second pulley (21), and a floating groove (19) is provided at the center of the outer wall of one end of the adjustment plate (11) close to each other, and the outer walls at both ends of the floating shaft (20) are slidably connected in the floating groove (19).

3. A modular assembled safety lifting device according to claim 1, characterized in that: The pulley 1 (16) is rotatably connected to the outer wall of the fixed shaft (13) at the adjustment hole (9), and a thread groove is provided on the outer wall of one end of the fixed shaft (13). A fastening nut (14) is threadedly connected to the outer wall of the fixed shaft (13) at the thread groove, and a pin hole (15) is provided on the fixed shaft (13) at the thread groove, and a pin shaft is inserted into the pin hole (15).

4. A modular assembled safety lifting device according to claim 1, characterized in that: The outer wall of the limiting groove (10) of the cross bar (1) is welded with equidistantly distributed positioning protrusions (17) at both sides of the positioning hole (12), and the outer wall of the adjustment plate (11) on one side close to the positioning protrusion (17) is provided with a positioning groove (18).

5. A modular assembled safety lifting device according to claim 1, characterized in that: The outer wall of one side of the adjustment plate (11) is slidably connected to the outer wall of the limiting groove (10) and the outer wall of the positioning protrusion (17), and the outer walls of the floating shaft (20) are rotatably connected with hooks (22), and the outer wall of one end of the fixed shaft (13) and the outer wall of one end of the fastening nut (14) are respectively in contact with the outer wall of the adjustment plate (11).

6. A modular assembled safety lifting device according to claim 1, characterized in that: The outer wall of one end of the cross bar (1) is provided with a second connection groove (3) on both sides, and the outer wall of the cross bar (1) close to one end is provided with a first connection groove (2), the outer wall of the force frame (4) and the force rod (5) close to the cross bar (1) is welded with a connection protrusion (6), and the cross bar (1), the force frame (4) and the force rod (5) are respectively provided with a fixing hole (7) at the first connection groove (2) and the second connection groove (3).

7. A modular assembled safety lifting device according to claim 1, characterized in that: The outer wall of the bottom of one end of the cross bar (1) is connected to a suspension rope (24), and the outer wall of the other end of the suspension rope (24) is provided with a suspension ring (25), the other end of the suspension rope (24) is fixed to the outer wall of the suspension ring (25), and the outer wall of the suspension rope (24) is respectively wound around the outer wall of the pulley 1 (16) and the outer wall of the pulley 2 (21).

8. A modular assembled safety lifting device according to claim 1, characterized in that: The top outer wall of the cross bar (1) is provided with a second positioning groove (27) at the location of the suspension rope (24), and the top outer wall of the force-bearing frame (4) is provided with a first positioning groove (26) at the location of the suspension ring (25) at the center thereof, and the suspension rope (24) and the suspension ring (25) are respectively placed in the second positioning groove (27) and the first positioning groove (26).

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