A precast component transport fixture and method of use

Abstract

The application discloses a prefabricated component transportation fixing device and a use method, and belongs to the technical field of building engineering. The prefabricated component transportation fixing device comprises a fixing base, the top surface of the fixing base is provided with four groups of inclined grooves which are arranged along the connecting lines from the center point of the fixing base to the corners of the fixing base, the four groups of inclined grooves are slidably provided with fixing strips, the inside of the fixing base is provided with a cavity, the cavity is slidably provided with a pair of connecting frames which are arranged along the long edges of the cavity, the long edges of the connecting frames are parallel to the wide edges of the cavity, the pair of connecting frames are slidably provided with a pair of sliding blocks, the four groups of sliding blocks and the four groups of fixing strips are in one-to-one correspondence, the fixing strips are fixed to the top surfaces of the sliding blocks, the cavity is provided with a driving element, the driving element drives the pair of connecting frames to move synchronously and reversely, the two sides of the fixing base are provided with U-shaped seats, the groove of one of the U-shaped seats is provided with a fixing rod, the groove of the other U-shaped seat is rotationally connected with a winding shaft through a winding spring, the outer side of the winding shaft is wound with a fixing belt, and the top end of the fixing belt is provided with a clamping element.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a prefabricated component transportation and fixing device and its usage method. Background Technology

[0002] Precast components refer to steel, wood, or concrete components that are prefabricated in a factory or on-site according to design specifications. There are various types of molds for precast components, commonly including concrete component molds, component molds, hexagonal reservoir slope protection molds, bridge cover molds, urban road curbstone molds, cement component molds, cement product component molds, concrete product molds, canal cover molds, hollow hexagonal slope protection brick molds, road and bridge cover molds, cable trough cover molds, roadbed cover molds, power cover molds, water conservancy irrigation molds, plastic manhole cover molds, water conservancy cover molds, ditch cover molds, tunnel cover molds, and trench cover molds. Many other shapes of precast components are also available. The production of precast components places demands on their transportation. Currently, the most common method is to directly place the precast components on the transport vehicle. However, this method can lead to problems such as the precast components tipping over or colliding and rubbing against the vehicle or adjacent precast components. Alternatively, a fixing frame can be placed on the transport vehicle to secure the precast components. Common traditional fixing devices are usually frame structures welded from rods. These fixing devices cannot be adjusted according to the size of the precast components being transported, resulting in high transportation costs. Therefore, in order to ensure stable and safe transportation, precast component production workshops need to be equipped with a stable transportation fixing device. Summary of the Invention

[0003] The purpose of this invention is to provide a prefabricated component transportation and fixing device and a method of use to solve the problems mentioned in the background art.

[0004] In view of the above problems, the technical solution proposed by the present invention is as follows:

[0005] A precast component transport and fixing device includes a fixed base. The top surface of the fixed base has four sets of inclined grooves, which are arranged along the line connecting the center point of the fixed base to its corner. A fixing strip slides within each of the four sets of inclined grooves. The fixed base has an internal cavity, within which a pair of connecting frames slides. The pair of connecting frames are arranged along the long side of the cavity, and the long side of the connecting frames is parallel to the wide side of the cavity. A pair of sliders slides within each pair of connecting frames. The four sets of sliders correspond one-to-one with the four sets of fixing strips, and the fixing strips are fixed to the top surface of the sliders. A driving component is provided within the cavity, which drives the pair of connecting frames to move synchronously in opposite directions. U-shaped seats are installed on both sides of the fixed base. A fixing rod is installed in the groove of one U-shaped seat, and a coil spring rotates the groove of the other U-shaped seat. The device includes a spool with a fixing strap wound around its outer side. The top of the fixing strap has a locking element that engages with a fixing rod. A driving component cooperates with a pair of connecting frames, enabling the connecting frames to move synchronously in opposite directions within the cavity. The connecting frames then drive an internal slider to slide, which in turn moves a fixing strip along an inclined groove. This allows the four sets of fixing strips to be adjusted towards or away from the center point of the fixed base to accommodate prefabricated components of different sizes, solving the problem that traditional fixing devices cannot be adjusted according to the size of the prefabricated components. Simultaneously, fixing rods and fixing straps with spools are respectively installed on the U-shaped seats on both sides of the fixed base. The locking element at the top of the fixing strap engages with the fixing rod, enabling vertical fixation of the prefabricated component. Combined with the lateral fixation of the fixing strips, this achieves multi-directional fixation of the prefabricated component, preventing it from tipping over, colliding, or rubbing during transportation.

[0006] Furthermore, the driving component includes a pair of threaded rods rotatably mounted in the cavity, arranged along the long side of the cavity. The threads of the pair of threaded rods are opposite, and a coupling connects the pair of threaded rods. A connecting block is mounted on the bottom surface of the connecting frame. The threaded rods and the connecting block are threadedly engaged. A connecting shaft is rotatably connected to the outer side of the fixed base. One end of the connecting shaft is coaxially connected to one of the threaded rods, and the other end of the connecting shaft is coaxially connected to a handwheel. The handwheel cooperates with the connecting shaft, facilitating manual rotation of the threaded rods without the need for complex electric equipment, thus lowering the barrier to entry for the device. The coupling connects the pair of threaded rods with opposite threads, enabling the two threaded rods to rotate synchronously. The threaded rods are threadedly engaged with the connecting block, and the rotating threaded rods can drive the connecting block and the connecting frame to move. Because the threads are opposite, the pair of connecting frames can move synchronously in opposite directions, ensuring that the four sets of fixing strips can move evenly towards the center or open outwards, guaranteeing the stability and symmetry of the precast component fixation, and preventing the precast component from shifting due to uneven fixing force.

[0007] Furthermore, a limiting block is installed on the bottom surface of the connecting block, and a pair of limiting grooves are opened on the bottom surface of the cavity. The limiting block slides in the limiting groove. The limiting block on the bottom surface of the connecting block cooperates with the limiting groove on the bottom surface of the cavity to restrict the movement direction of the connecting block, so as to prevent the connecting block from rotating or deviating when it moves under the drive of the threaded rod. This ensures that the connecting block always moves stably along the length direction of the threaded rod, thereby ensuring the stability of the moving connecting frame. Finally, the fixing strip can move accurately along the inclined groove and fit against the outer wall of the precast component, improving the fixing accuracy.

[0008] Furthermore, a limiting plate is installed on the bottom surface of the slider, the limiting plate abuts against the bottom surface of the connecting frame, and a groove is provided on the top surface of the connecting block, the limiting plate can slide in the groove, and the limiting plate on the bottom surface of the slider abuts against the bottom surface of the connecting frame, which can prevent the slider from detaching from the connecting frame and ensure the connection stability between the slider and the connecting frame.

[0009] Furthermore, a first anti-slip pad is installed on the outer side of the fixed base, and the connecting shaft passes through the inner ring of the first anti-slip pad. A second anti-slip pad slides on the outer side of the connecting shaft. The first anti-slip pad can engage with the second anti-slip pad. A pair of slots are opened on the outer side of the connecting shaft. A pair of connecting plates are installed on the inner ring of the second anti-slip pad. The connecting plates slide in the slots and are connected to the end of the slots near the handwheel by a spring. The first anti-slip pad and the second anti-slip pad cooperate and can engage or disengage under the elastic force of the spring, thereby locking or unlocking the connecting shaft. When locked, it can prevent the connecting shaft from rotating on its own due to vibration or other factors during transportation, and avoid the prefabricated component from failing to fix due to loosening of the fixing strip. When unlocked, it is convenient for the staff to turn the handwheel to adjust the position of the fixing strip. The structure is simple and easy to operate, improving the safety and reliability of the device.

[0010] Furthermore, both ends of the inclined groove are provided with slots, and a shaft is rotatably connected to the slot via a coil spring. A dustproof strip is wound around the outside of the shaft, and the free end of the dustproof strip is connected to a fixing strip. The shaft in the slot at both ends of the inclined groove cooperates with the dustproof strip, and the free end of the dustproof strip is connected to the fixing strip. When the fixing strip moves along the inclined groove, the dustproof strip can unfold or retract with the movement of the fixing strip, always covering the part of the inclined groove not covered by the fixing strip, preventing dust, sand and other debris from entering the inclined groove, avoiding debris from affecting the sliding of the fixing strip in the inclined groove, ensuring the smoothness of the fixing strip adjustment, and reducing the frequency of device maintenance.

[0011] Furthermore, the dustproof belt and the inclined trough are of equal width, which ensures that the dustproof belt completely covers the opening of the inclined trough when it is unfolded, without any gaps in the width direction. This prevents dust, sand and other debris from entering the inclined trough through the gaps, further improving the dustproof effect and ensuring that the fixing strip slides in the inclined trough without being disturbed by debris, thus maintaining the long-term stable operation of the device.

[0012] Furthermore, the side of the fixing rod is provided with a slot, and the engaging component includes a metal edging that fits over the free end of the fixing strap. A connecting rod is installed on the top surface of the metal edging, and a buckle is rotatably connected to the top of the connecting rod via a torsion spring. The connecting rod and the buckle can slide within the slot, and the buckle can abut against the outer side of the fixing rod. The metal edging at the free end of the fixing strap can enhance the structural strength of the end of the fixing strap and prevent the end of the fixing strap from wearing and breaking after long-term use. The connecting rod and the buckle cooperate with the slot on the side of the fixing rod to achieve quick engagement and disengagement of the fixing strap and the fixing rod. The buckle is kept abutting against the outer side of the fixing rod by the torsion spring to ensure that it is not easy to fall off after engagement, ensuring the stability of the fixing strap in vertical fixation of the precast component, while facilitating operation by workers and improving loading and unloading efficiency.

[0013] On the other hand, the present invention also proposes a method for using a prefabricated component transportation and fixing device, comprising the following steps:

[0014] S1: Place the fixed base on the bearing surface of the transport vehicle and put the fixing strips in the four sets of inclined grooves in the initial position. Push the second anti-slip pad to move away from the first anti-slip pad along the connecting axis. At this time, the spring is compressed and the interlocking structure of the first anti-slip pad and the second anti-slip pad is separated, thereby releasing the locking state of the handwheel.

[0015] S2: Hoist the prefabricated component to the center area of ​​the top surface of the fixed base. If the surface of the prefabricated component has a protrusion or groove structure, adjust the position of the component so that the contact surface of the fixing strip avoids the protrusion.

[0016] S3: Turn the handwheel to drive one of the threaded rods to rotate via the connecting shaft. This threaded rod drives another threaded rod with a reverse thread to rotate synchronously via the coupling. As the threaded rod rotates, the connecting block that engages with the threaded rod drives a pair of connecting frames to move synchronously in opposite directions along the long side of the cavity. During the movement of the connecting frames, the slider inside slides along the long side of the connecting frames, while simultaneously driving the fixing strips to move along the inclined groove towards the center point of the fixed base, until the inner sides of all four sets of fixing strips are tightly fitted against the outer wall of the precast component. Then, stop turning the handwheel, release the second anti-slip pad, and the spring returns to its original position, pushing the second anti-slip pad towards the first anti-slip pad, so that the interlocking structure of the two engages and locks the connecting shaft.

[0017] S4: Pull the free end of the fixing strap to overcome the spring force on the spool, and pass the fixing strap over the top surface of the precast component, aligning the locking piece at the metal edging with the fixing rod; rotate the buckle and insert the connecting rod and buckle together into the slot, then release the buckle to allow it to return to its original position around the torsion spring, so that the buckle abuts against the outer wall of the fixing rod. At this time, the spring on the spool is in a stretched state, applying a continuous vertical constraint force to the precast component through the fixing strap.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. Through the cooperation of fixing strips, connecting frames, sliders, threaded rods, connecting blocks, handwheels, connecting shafts, and couplings, four sets of fixing strips are driven to move along the inclined groove towards the center and fit tightly against the outer wall of the precast component, thus fixing the precast component laterally and restricting its lateral movement. At the same time, through the cooperation of fixing belts, rollers, coil springs, fixing rods, connecting rods, buckles, and slots, the fixing belts pass around the top surface of the precast component and engage with the fixing rods. The spring force is used to apply a vertical constraint force to the precast component, restricting its vertical movement. The combination of lateral and vertical fixing forms a multi-directional fixing, effectively preventing the precast component from tipping over during transportation and from colliding and rubbing against vehicles and adjacent components.

[0020] Second, by engaging a pair of threaded rods with opposite threads with a coupling, turning the handwheel drives a pair of connecting frames to move synchronously in opposite directions. The connecting frames drive the slider and fixing strip to move along the inclined groove, allowing the distance between the fixing strips to be flexibly adjusted according to the size of the precast components, adapting to precast components of different sizes. This eliminates the need to equip precast components of different sizes with separate fixing devices, reducing transportation costs. In addition, the cooperation of the first anti-slip pad, the second anti-slip pad, the spring, the connecting plate, and the slot can lock the connecting shaft, prevent the fixing strips from loosening, and ensure the stability of precast components of different sizes after fixing. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the prefabricated component transportation and fixing device disclosed in an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged schematic diagram of structure A in the middle;

[0023] Figure 3 for Figure 1 Enlarged schematic diagram of structure B in the middle;

[0024] Figure 4 for Figure 1 Enlarged schematic diagram of the C-structure;

[0025] Figure 5 This is a first cross-sectional structural diagram of the prefabricated component transportation and fixing device disclosed in an embodiment of the present invention;

[0026] Figure 6 for Figure 5 Enlarged schematic diagram of the D-structure;

[0027] Figure 7 This is a second cross-sectional structural schematic diagram of the prefabricated component transportation and fixing device disclosed in an embodiment of the present invention;

[0028] Figure 8This is a third cross-sectional structural diagram of the prefabricated component transportation and fixing device disclosed in an embodiment of the present invention;

[0029] Figure 9 for Figure 8 A magnified schematic diagram of the E-structure.

[0030] In the diagram: 1. Fixed base; 2. Inclined groove; 3. Dustproof strip; 4. Fixing strip; 5. U-shaped seat; 6. Fixing rod; 7. Fixing strap; 8. Connecting rod; 9. Buckle; 10. Slot; 11. Connecting shaft; 12. Handwheel; 13. First anti-slip pad; 14. Second anti-slip pad; 15. Slot; 16. Connecting plate; 17. Spring; 18. Cavity; 19. Threaded rod; 20. Coupling; 21. Connecting frame; 22. Connecting block; 23. Slider; 24. Limiting plate; 25. Limiting groove; 26. Hollow groove; 27. Shaft. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-9This invention provides a technical solution: a precast component transportation and fixing device, including a fixed base 1. The top surface of the fixed base 1 has four sets of inclined grooves 2, and the inclined grooves 2 are arranged along the line connecting the center point of the fixed base 1 to its corner. Fixing strips 4 slide within each of the four sets of inclined grooves 2. A cavity 18 is formed inside the fixed base 1, and a pair of connecting frames 21 slide within the cavity 18. The pair of connecting frames 21 are arranged along the long side of the cavity 18, and the long side of the connecting frames 21 is parallel to the wide side of the cavity 18. Each frame 21 has a pair of sliding sliders 23. The four sets of sliders 23 correspond one-to-one with the four sets of fixing bars 4, and the fixing bars 4 are fixed to the top surface of the sliders 23. A driving component is provided in the cavity 18. The driving component drives the pair of connecting frames 21 to move synchronously in opposite directions. U-shaped seats 5 are installed on both sides of the fixed base 1. A fixing rod 6 is installed in the groove of one U-shaped seat 5. A roller is rotatably connected to the groove of the other U-shaped seat 5 through a coil spring. A fixing strap 7 is wound around the outside of the roller. A locking component is provided at the top of the fixing strap 7. The engaging component and the fixing rod 6 are engaged and connected. First, the fixing base 1 is placed on the bearing surface of the transport vehicle. Then, the driving component drives a pair of connecting frames 21 to move synchronously in opposite directions along the long side of the cavity 18. Since the long side of the connecting frame 21 is parallel to the wide side of the cavity 18, the movement of the connecting frame 21 will drive the internal slider 23 to slide along the long side of the connecting frame 21. The slider 23 then drives the fixing strip 4 fixed on the top surface to slide in the inclined groove 2. Because the inclined groove 2 is along the line connecting the center point of the fixing base 1 to the corner... Therefore, the fixing strip 4 will move towards or away from the center point of the fixing base 1. After the precast component is placed in the center area of ​​the top surface of the fixing base 1, the fixing strip 4 is adjusted to fit against the outer wall of the precast component to achieve horizontal fixation. Then, the fixing band 7 is pulled to overcome the elastic force of the coil spring on the roller and pass over the top surface of the precast component. Then, the locking piece at the top of the fixing band 7 is locked with the fixing rod 6 on the U-shaped seat 5 on the other side. The elastic force of the coil spring is used to keep the fixing band 7 taut to achieve vertical fixation of the precast component.

[0033] As an embodiment of the present invention, the driving component further includes a pair of threaded rods 19 rotatably mounted in the cavity 18, the pair of threaded rods 19 being arranged along the long side of the cavity 18, the threads of the pair of threaded rods 19 being opposite, and a coupling 20 connecting the pair of threaded rods 19. A connecting block 22 is mounted on the bottom surface of the connecting frame 21, and the threaded rods 19 and the connecting block 22 are threadedly engaged. A connecting shaft 11 is rotatably connected to the outer side of the fixed base 1, one end of the connecting shaft 11 being coaxially connected to one of the threaded rods 19, and the other end of the connecting shaft 11 being coaxially connected to a handwheel 12. The operator first holds the handwheel 12 and rotates it, and the handwheel 12 drives the threaded rods 19 to rotate. The connecting shaft 11, which is connected by the axis, rotates outside the fixed base 1. The connecting shaft 11 then drives one of the threaded rods 19, which is coaxially connected to it, to rotate in the cavity 18. Since the two threaded rods 19 are connected by a coupling 20, this threaded rod 19 will drive the other threaded rod 19 to rotate synchronously through the coupling 20. Since the threads of the pair of threaded rods 19 are opposite and both are threaded into the connecting block 22 on the bottom surface of the connecting frame 21, the two synchronously rotating threaded rods 19 will drive the connecting blocks 22 connected to them to move synchronously in opposite directions along the length of the threaded rods 19. The connecting blocks 22 then drive the connecting frame 21 on the top surface to move synchronously in opposite directions in the cavity 18.

[0034] As an embodiment of the present invention, a limiting block is further installed on the bottom surface of the connecting block 22, and a pair of limiting grooves 25 are provided on the bottom surface of the cavity 18. The limiting block slides in the limiting grooves 25. When the threaded rod 19 rotates and drives the connecting block 22 to move, the limiting block on the bottom surface of the connecting block 22 will slide in the limiting grooves 25 on the bottom surface of the cavity 18. Since the limiting grooves 25 are arranged along the long side of the cavity 18 and the shape of the limiting block matches the limiting grooves 25, the limiting grooves 25 will constrain the movement trajectory of the limiting block, so that the limiting block can only move along the length direction of the limiting grooves 25, thereby driving the connecting block 22 to move only along the length direction of the threaded rod 19, preventing the connecting block 22 from rotating with the threaded rod 19 or shifting in other directions.

[0035] As an embodiment of the present invention, a limiting plate 24 is further installed on the bottom surface of the slider 23. The limiting plate 24 abuts against the bottom surface of the connecting frame 21, and a groove is provided on the top surface of the connecting block 22. The limiting plate 24 can slide in the groove. When the connecting frame 21 moves, it will drive the slider 23 inside to move. The limiting plate 24 on the bottom surface of the slider 23 will slide in the groove on the top surface of the connecting block 22. At the same time, the limiting plate 24 always abuts against the bottom surface of the connecting frame 21. Since the size of the limiting plate 24 is larger than the size of the contact part between the slider 23 and the connecting frame 21, the bottom surface of the connecting frame 21 will support and block the limiting plate 24, preventing the slider 23 from detaching from the connecting frame 21 upward.

[0036] As an embodiment of the present invention, a first anti-slip pad 13 is further installed on the outer side of the fixed base 1, and the connecting shaft 11 passes through the inner ring of the first anti-slip pad 13. A second anti-slip pad 14 slides on the outer side of the connecting shaft 11. The first anti-slip pad 13 can be engaged with the second anti-slip pad 14. A pair of slots 15 are provided on the outer side of the connecting shaft 11. A pair of connecting plates 16 are installed on the inner ring of the second anti-slip pad 14. The connecting plates 16 slide in the slots 15, and a spring 17 is connected between the connecting plates 16 and the end of the slots 15 near the handwheel 12. When it is necessary to adjust the fixing strip 4, the operator pushes the second anti-slip pad 13. 4. Move along the connecting shaft 11 away from the first anti-slip pad 13. The connecting plate 16 will slide in the slot 15. At the same time, the connecting plate 16 will compress the spring 17. As the second anti-slip pad 14 moves, its engagement structure with the first anti-slip pad 13 will separate, the connecting shaft 11 will be unlocked, and the handwheel 12 can be rotated. After the adjustment is completed, release the second anti-slip pad 14. The spring 17 will return to its original state and push the connecting plate 16 to slide in the opposite direction in the slot 15. The connecting plate 16 will drive the second anti-slip pad 14 to move towards the first anti-slip pad 13 until the engagement structure of the two engages. The connecting shaft 11 will be locked and cannot rotate on its own.

[0037] As an embodiment of the present invention, further, both ends of the inclined groove 2 are provided with empty grooves 26. A shaft 27 is rotatably connected to the empty groove 26 through a coil spring. A dustproof strip 3 is wrapped around the outside of the shaft 27. The free end of the dustproof strip 3 is connected to the fixing strip 4. When the fixing strip 4 moves along the inclined groove 2 toward the center point of the fixed base 1, the fixing strip 4 will pull the free end of the dustproof strip 3 connected to it. The dustproof strip 3 drives the shaft 27 to rotate in the empty groove 26. The coil spring on the shaft 27 is twisted and stores force. At this time, the dustproof strip 3 on the side of the inclined groove 2 away from the moving direction of the fixing strip 4 will unfold from the shaft 27 and cover the corresponding part of the inclined groove 2. When the fixing strip 4 moves away from the center point, the coil spring on the shaft 27 returns to its original state and drives the shaft 27 to rotate in the opposite direction, re-wrap the dustproof strip 3 around the outside of the shaft 27. The dustproof strip 3 is retracted with the movement of the fixing strip 4, always maintaining the coverage of the inclined groove 2.

[0038] As an embodiment of the present invention, the dustproof belt 3 and the inclined groove 2 are of the same width. When the dustproof belt 3 moves and unfolds in the inclined groove 2 with the fixing strip 4, the two side edges of the dustproof belt 3 can fit against the two side inner walls of the inclined groove 2, completely blocking the opening of the inclined groove 2. No matter where the fixing strip 4 is in the inclined groove 2, the dustproof belt 3 can achieve full coverage of the opening of the inclined groove 2 by its own size being the same as that of the inclined groove 2, preventing debris from entering.

[0039] As an embodiment of the present invention, the fixing rod 6 is further provided with a slot 10 on its side. The engaging component includes a metal edging sleeved on the free end of the fixing strap 7. A connecting rod 8 is installed on the top surface of the metal edging. The top end of the connecting rod 8 is rotatably connected to a buckle 9 via a torsion spring. The connecting rod 8 and the buckle 9 can slide within the slot 10. The buckle 9 can abut against the outer side of the fixing rod 6. When it is necessary to fix the prefabricated component in a vertical position, the worker pulls the free end of the fixing strap 7, causing the metal edging to move the connecting rod 8 and the buckle 9 to the fixing rod 6. First, rotate the buckle 9 to overcome the spring force and rotate it to a state roughly parallel to the connecting rod 8. Then, insert the connecting rod 8 and the buckle 9 together into the slot 10 on the side of the fixing rod 6. Then, release the buckle 9. The spring returns to its original state and drives the buckle 9 to rotate in the opposite direction until the buckle 9 abuts against the outside of the fixing rod 6. At this time, the connecting rod 8 and the buckle 9 are restricted in the slot 10, and the fixing strap 7 is engaged and fixed with the fixing rod 6. When disassembly is required, rotate the buckle 9 again and remove it and the connecting rod 8 from the slot 10.

[0040] Please see Figures 1-9 The present invention provides a technical solution: a method for using a prefabricated component transportation and fixing device, comprising the following steps:

[0041] S1: Place the fixed base 1 on the bearing surface of the transport vehicle and make the fixing strips 4 in the four sets of inclined grooves 2 in the initial position. Push the second anti-slip pad 14 to move away from the first anti-slip pad 13 along the connecting shaft 11. At this time, the spring 17 is compressed, and the interlocking structure of the first anti-slip pad 13 and the second anti-slip pad 14 is separated, thereby releasing the locking state of the handwheel 12.

[0042] S2: Hoist the prefabricated component to the center area of ​​the top surface of the fixed base 1. If the surface of the prefabricated component has a protrusion or groove structure, adjust the position of the component so that the contact surface of the fixing strip 4 avoids the protrusion.

[0043] S3: Rotate the handwheel 12 to drive one of the threaded rods 19 to rotate via the connecting shaft 11. This threaded rod 19 drives another threaded rod 19 with a reverse thread to rotate synchronously via the coupling 20. As the threaded rod 19 rotates, the connecting block 22, which is threadedly engaged with the threaded rod 19, drives a pair of connecting frames 21 to move synchronously in the opposite direction along the long side of the cavity 18. During the movement of the connecting frame 21, the slider 23 inside it slides along the long side of the connecting frame 21, and at the same time drives the fixing strip 4 to move along the inclined groove 2 towards the center point of the fixed base 1, until the inner sides of the four sets of fixing strips 4 are tightly attached to the outer wall of the precast component. Then stop rotating the handwheel 12, release the second anti-slip pad 14, and the spring 17 resets and pushes the second anti-slip pad 14 to move towards the first anti-slip pad 13, so that the interlocking structure of the two engages and locks the connecting shaft 11.

[0044] S4: Pull the free end of the fixing strap 7 to overcome the elastic force of the coil spring on the spool, and pass the fixing strap 7 around the top surface of the precast component so that the locking piece at the metal edge is aligned with the fixing rod 6; rotate the buckle 9 and insert the connecting rod 8 and the buckle 9 into the slot 10 together, then release the buckle 9 so that it returns to its original position around the torsion spring, so that the buckle 9 abuts against the outer wall of the fixing rod 6. At this time, the coil spring on the spool is in a stretched state, and a continuous vertical constraint force is applied to the precast component through the fixing strap 7.

[0045] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a control cabinet. The control circuit can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A prefabricated component transportation and fixing device, characterized in that, Includes a fixed base (1), the top surface of which has four sets of inclined grooves (2), and the inclined grooves (2) are arranged along the line connecting the center point of the fixed base (1) to its corner. A fixing strip (4) slides within each of the four sets of inclined grooves (2). The fixed base (1) has an interior cavity (18), within which a pair of connecting frames (21) slides. The pair of connecting frames (21) are arranged along the long side of the cavity (18), and the long side of the connecting frames (21) is parallel to the wide side of the cavity (18). A pair of sliders (23) slide within each pair of connecting frames (21). The four sets of... The slider (23) and the four sets of fixing bars (4) correspond one-to-one, and the fixing bars (4) are fixed on the top surface of the slider (23). The cavity (18) is provided with a driving component, which drives a pair of connecting frames (21) to move synchronously in opposite directions. Both sides of the fixed base (1) are equipped with U-shaped seats (5). A fixing rod (6) is installed in the groove of one of the U-shaped seats (5), and a roller is rotatably connected to the groove of the other U-shaped seat (5) through a coil spring. A fixing belt (7) is wound around the outside of the roller. A locking component is provided at the top of the fixing belt (7), and the locking component and the fixing rod (6) are locked together.

2. The prefabricated component transportation and fixing device according to claim 1, characterized in that, The drive unit includes a pair of threaded rods (19) rotatably mounted in the cavity (18), and the pair of threaded rods (19) are arranged along the long side of the cavity (18). The threads of the pair of threaded rods (19) are opposite, and a coupling (20) is connected between the pair of threaded rods (19). A connecting block (22) is mounted on the bottom surface of the connecting frame (21). The threaded rods (19) and the connecting block (22) are threadedly engaged. A connecting shaft (11) is rotatably connected to the outside of the fixed base (1). One end of the connecting shaft (11) is coaxially connected to one of the threaded rods (19), and the other end of the connecting shaft (11) is coaxially connected to a handwheel (12).

3. The prefabricated component transportation and fixing device according to claim 2, characterized in that, The bottom surface of the connecting block (22) is equipped with a limiting block, and the bottom surface of the cavity (18) is provided with a pair of limiting grooves (25), and the limiting block slides in the limiting grooves (25).

4. A prefabricated component transportation and fixing device according to claim 2, characterized in that, The bottom surface of the slider (23) is fitted with a limiting plate (24), the limiting plate (24) and the bottom surface of the connecting frame (21) abut against each other, and the top surface of the connecting block (22) is provided with a groove, and the limiting plate (24) can slide in the groove.

5. A prefabricated component transportation and fixing device according to claim 2, characterized in that, A first anti-slip pad (13) is installed on the outer side of the fixed base (1), and the connecting shaft (11) passes through the inner ring of the first anti-slip pad (13). A second anti-slip pad (14) slides on the outer side of the connecting shaft (11). The first anti-slip pad (13) can be engaged with the second anti-slip pad (14). A pair of slots (15) are provided on the outer side of the connecting shaft (11). A pair of connecting plates (16) are installed on the inner ring of the second anti-slip pad (14). The connecting plate (16) slides in the slot (15) and is connected to the end of the slot (15) near the handwheel (12) by a spring (17).

6. A prefabricated component transportation and fixing device according to claim 1, characterized in that, Both ends of the inclined groove (2) are provided with empty grooves (26). A shaft (27) is rotatably connected in the empty groove (26) by a coil spring. A dustproof strip (3) is wrapped around the outside of the shaft (27). The free end of the dustproof strip (3) is connected to a fixing strip (4).

7. A prefabricated component transportation and fixing device according to claim 6, characterized in that, The dustproof belt (3) and the inclined groove (2) are of the same width.

8. A prefabricated component transportation and fixing device according to claim 1, characterized in that, The side of the fixing rod (6) is provided with a slot (10). The locking component includes a metal edging sleeved on the free end of the fixing strap (7). A connecting rod (8) is installed on the top surface of the metal edging. The top end of the connecting rod (8) is rotatably connected to a buckle (9) by a torsion spring. The connecting rod (8) and the buckle (9) can slide in the slot (10). The buckle (9) can abut against the outside of the fixing rod (6).

9. A method of using a precast component transport and fixing device, as described in claims 1-8, characterized in that, Includes the following steps: S1: Place the fixed base (1) on the bearing plane of the transport vehicle and make the fixing strip (4) in the four sets of inclined grooves (2) in the initial position. Push the second anti-slip pad (14) to move away from the first anti-slip pad (13) along the connecting shaft (11). At this time, the spring (17) is compressed, and the biting structure of the first anti-slip pad (13) and the second anti-slip pad (14) is separated, thereby releasing the locking state of the handwheel (12). S2: Hoist the precast component to the center area of ​​the top surface of the fixed base (1). If the surface of the precast component has a protrusion or groove structure, adjust the position of the component so that the contact surface of the fixing strip (4) avoids the protrusion. S3: Turn the handwheel (12) to drive one of the threaded rods (19) to rotate through the connecting shaft (11). The threaded rod (19) drives another threaded rod (19) with a reverse thread to rotate synchronously through the coupling (20). As the threaded rod (19) rotates, the connecting block (22) that is threaded with the threaded rod (19) drives a pair of connecting frames (21) to move synchronously in the opposite direction along the long side of the cavity (18). During the movement of the connecting frame (21), the slider (23) inside it slides along the long side of the connecting frame (21), and at the same time drives the fixing strip (4) to move along the inclined groove (2) towards the center point of the fixed base (1) until the inner side of the four sets of fixing strips (4) is tightly attached to the outer wall of the precast component. Then stop turning the handwheel (12), loosen the second anti-slip pad (14), and the spring (17) resets and pushes the second anti-slip pad (14) to move towards the first anti-slip pad (13), so that the two interlocking structures are engaged and the connecting shaft (11) is locked. S4: Pull the free end of the fixing strap (7) to overcome the elastic force of the coil spring on the spool, and pass the fixing strap (7) around the top surface of the precast component so that the locking piece at the metal edge is aligned with the fixing rod (6); rotate the buckle (9) and insert the connecting rod (8) and the buckle (9) into the slot (10) together, then release the buckle (9) so that it returns to its original position around the torsion spring, so that the buckle (9) abuts against the outer wall of the fixing rod (6). At this time, the coil spring on the spool is in a stretched state, and a continuous vertical constraint force is applied to the precast component through the fixing strap (7).

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