An auxiliary positioning device for precast laminated slab construction

Abstract

The application discloses an auxiliary positioning device for prefabricated laminated slab construction, which comprises a lifting rope, a stabilizing mechanism is arranged outside the lifting rope, the stabilizing mechanism comprises a circular plate, an annular groove is formed in the outer arc surface of the circular plate, two groups of arc strips are rotationally connected inside the annular groove, a supporting plate is fixedly connected to the outer surfaces of the two groups of arc strips, an extension plate is fixedly connected to the outer surface of the supporting plate, one end of the lifting rope is fixedly connected to the outer surface of the extension plate, a line binding sleeve is movably connected to the other end of the lifting rope, a plummet is arranged on the top of the circular plate, and a connecting rope is fixedly connected to the outer surface of the plummet, and the application relates to the technical field of laminated slab installation. The application solves the problems of the prior art, such as the fixed structure of the laminated slab hoisting device, the maladaptation to single-specification hoisting, the large overall quality, the risk of hoisting shaking, the time-consuming and labor-consuming hoisting, the large abrasion, the high use cost and the low efficiency.

Description

Technical Field

[0001] This invention relates to the field of composite slab installation technology, specifically to an auxiliary positioning device for the construction of precast composite slabs. Background Technology

[0002] When using traditional hoisting methods for composite slabs, operators need to perform precise alignment, which can easily lead to operator fatigue and affect the accuracy and efficiency of initial positioning. Invention patent with publication number CN119191080A, a hoisting device and method for constructing composite slabs are disclosed, including a lifting frame, which keeps the composite slabs stable during hoisting, avoiding collisions and damage caused by shaking. Stable hoisting and precise positioning reduce the risk of shaking and collisions of composite slabs during hoisting and installation, and improve operational safety.

[0003] Although this device has the advantages mentioned above, it still has the following drawbacks in practical use: 1) This device uses a hook to perform secondary suspension to avoid the swaying of the composite plate caused by the lifting rope. This not only wastes time and effort and reduces the overall lifting efficiency, but also easily increases wear and tear and operating costs. Furthermore, when the lifting rope moves the composite plate, both the lifting rope and the hoisting rope can easily cause the composite plate to sway, increasing the risk of lifting and reducing the efficiency of subsequent lifting. 2) The positioning measures set on the side of the device can easily affect the connection and unhooking operation between the hook and the composite slab reinforcement. They are also prone to damage and corrosion. In addition, the overall structure of the device is complex and the weight is large, which increases the risk of swaying during hoisting. At the same time, the overall structure is fixed, which means that the device is only suitable for hoisting composite slabs of a single specification.

[0004] Therefore, it is necessary to address the existing problems with the existing hoisting equipment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an auxiliary positioning device for the construction of precast composite slabs. It solves the problems of existing composite slab hoisting devices, which are limited to a single specification and have a large overall mass, making them prone to swaying during hoisting. In addition, they also suffer from time-consuming and labor-intensive hoisting, high wear and tear, high operating costs, and low efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary positioning device for the construction of precast composite slabs, comprising a lifting rope, a stabilizing mechanism provided outside the lifting rope, the stabilizing mechanism comprising a circular plate, an annular groove formed on the outer arc surface of the circular plate, two sets of arc strips rotatably connected inside the annular groove, support plates fixedly connected to the outer surfaces of the two sets of arc strips, extension plates fixedly connected to the outer surfaces of the support plates, one end of the lifting rope fixedly connected to the outer surface of the extension plate, and a wire harness sleeve movably connected to the other end of the lifting rope, a plumb bob provided at the top of the circular plate, a connecting rope fixedly connected to the outer surface of the plumb bob, one end of the connecting rope fixedly connected to the outer surface of the lifting rope, and through slots formed on the bodies of the two sets of support plates, with pins slidably connected inside the through slots, one end of the pin abutting against the outer surface of the support plate, and the other end of the pin fixedly connected to a connecting plate.

[0007] Preferably, a fixed plate is fixedly connected to the top of the circular plate, and a screw is rotatably connected through the body of the fixed plate. The two sides of the outer surface of the screw are respectively threaded through to the bodies of the two sets of connecting plates.

[0008] Preferably, a suspension assembly is provided on the outside of the extension plate. The suspension assembly includes a slide rail, the outer surface of which is fixedly connected to the outer surface of the extension plate. A slider is slidably connected to the outer surface of the slide rail. Both ends of the slide rail are fixedly connected to a locking plate. A pull rope is provided on the outside of the slider, and a rope hook is fixedly connected to one end of the pull rope.

[0009] Preferably, the bottom of the slider is provided with a cylinder, the top of the cylinder is embedded and rotatably connected with an I-beam wheel, the top of the I-beam wheel is fixedly connected to the bottom of the slider, the bottom of the cylinder is provided with a rotating groove, the inside of the rotating groove is rotatably connected with an ear plate, and the outer surface of the ear plate is fixedly connected to the other end of the pull rope.

[0010] Preferably, a positioning component is provided on the outside of the extension plate. The positioning component includes two rotating plates that fit together vertically. The rotating plates are located on the outside of the extension plate. A battery compartment is provided on the top of each of the two rotating plates. A groove is provided on the bottom of each of the two rotating plates. An optical module is provided inside the groove.

[0011] Preferably, the rotating plate has an inner cavity, and a mounting plate is fixedly connected inside the inner cavity. The bottom of the mounting plate is fixedly connected to the top of the optical module, and a control plate is fixedly connected to the top of the mounting plate. Signal modules are provided on both sides of the mounting plate, and the outer surface of the signal modules is fixedly connected to the inside of the inner cavity.

[0012] Preferably, the rotating plate is provided with an adjustment unit on its exterior. The adjustment unit includes a circular groove, which is opened at the top of the upper rotating plate. A rotating rod is rotatably connected inside the circular groove. One end of the rotating rod is rotatably connected to the bodies of the two rotating plates in sequence and extends to the exterior of the lower rotating plate. A key shaft is fixedly connected through the outer surface of the rotating rod. A retainer is slidably connected through the outer surface of the key shaft. The outer surface of the retainer is slidably connected to the interior of the circular groove. Two sets of slots are connected inside the circular groove. One set of slots is opened at the bottom of the upper rotating plate and is in a through state. The other set of slots is opened at the top of the lower rotating plate. The two ends of the retainer are respectively engaged with the interiors of the two sets of slots.

[0013] Preferably, a sliding groove plate is provided on the outside of the rotating rod, and the outer surface of the sliding groove plate is fixedly connected to the outer surface of the extension plate. The outer surfaces of both rotating plates are movably connected to the inside of the sliding groove plate. A ball screw is provided inside the sliding groove plate. One end of the ball screw is rotatably connected to the body of the sliding groove plate and extends to the outside of the sliding groove plate. The sliding end of the ball screw is rotatably connected to the other end of the rotating rod. A compression spring is sleeved on the outside of the key shaft. The two ends of the compression spring are fixedly connected to the outer surface of the card holder and the sliding end of the ball screw, respectively.

[0014] Beneficial effects This invention provides an auxiliary positioning device for the construction of precast composite slabs. Compared with the prior art, it has the following advantages: (1) By setting up a stabilizing mechanism, the plumb bob is connected to the lifting rope via a connecting rope, which plays a damping role during the lifting of the composite plate by the lifting rope, so that the composite plate can be quickly stabilized above the installation area, which facilitates the quick positioning of the composite plate and the installation position, thereby reducing the risk of swaying during lifting and improving the lifting efficiency. Furthermore, by using extension plates of different specifications to be fixedly connected to the support plates, and by the support plates moving inside the arc groove through the arc strip, the two sets of support plates drive the corresponding extension plates to rotate in a scissor shape, thereby adapting to the lifting of composite plates of different specifications, increasing the scope of application of the device, and minimizing the overall mass, further avoiding the risk of swaying during lifting.

[0015] (2) By setting up a suspension assembly, the slider slides along the slide rail and drives the pull rope and rope hook to move through the I-beam wheel and cylinder. This allows the rope hook to be close to the steel bar above the composite slab. Then, by rotating the cylinder around the I-beam wheel and the ear plate rotating inside the slot, the rope hook can directly hook the steel bar without twisting the rope, thus avoiding the problem of the rope being twisted and damaged. This improves the service life of the rope and the stability of the composite slab hoisting. This method can be adapted to the hoisting of composite slabs of different specifications, thereby expanding the scope of application of the device.

[0016] (3) By setting up a positioning device, the two rotating plates are attached vertically and parallel to each other, and the optical module is hidden by the groove, which can protect the optical module from external damage. The two rotating plates are set perpendicular to each other and set on the outside of one side of the extension plate, so that the two sets of optical modules can identify the periphery of the installation area, thereby realizing the rapid positioning of the composite plate hoisting. The use of optical recognition is not only highly accurate and efficient, but also reduces the cost of manual positioning.

[0017] (4) By setting an adjustment unit, the two rotating plates can be adjusted to be parallel and vertical by using the card holder, key shaft and card slot, which facilitates the positioning, use and storage of the rotating plates. At the same time, the rotating plates can be moved inside the slide plate by using the ball screw, which allows the optical module to be moved to the top of the corner of the installation station. The slide plate can support the rotating plates and further improve the hiding and protection effect of the optical module. Attached Figure Description

[0018] Figure 1 This is a perspective view of the external structure of the suspension rope of the present invention; Figure 2 This is a perspective view of the external structure of the circular plate of the present invention; Figure 3 This is a perspective view of the external structure of the slide rail of the present invention; Figure 4 This is a perspective view of the internal structure of the rotating plate of the present invention; Figure 5 This is a perspective view of the external structure of the rotating rod of the present invention.

[0019] In the diagram: 1. Suspension rope; 2. Circular plate; 3. Annular groove; 4. Arc strip; 5. Support plate; 6. Extension plate; 7. Suspension assembly; 71. Slide rail; 72. Slider; 73. Clamping plate; 74. Pull rope; 75. Rope hook; 76. Cylinder; 77. I-beam wheel; 78. Rotary groove; 79. Ear plate; 8. Positioning assembly; 81. Rotary plate; 82. Adjustment unit; 821. Circular groove; 822. Rotating rod; 823. Key shaft 824. Card holder; 825. Card slot; 826. Slide plate; 827. Ball screw; 828. Compression spring; 83. Battery compartment; 84. Groove; 85. Optical module; 86. Inner cavity; 87. Mounting plate; 88. Control board; 89. Signal module; 9. Cable harness sleeve; 10. Plumb ball; 11. Connecting rope; 12. Through groove; 13. Pin; 14. Connecting plate; 15. Fixing plate; 16. Screw. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 This invention provides a technical solution: an auxiliary positioning device for the construction of precast composite slabs. The system includes a lifting rope 1, which is connected to a crane. A stabilizing mechanism is installed on the outside of the lifting rope 1, comprising a circular plate 2. The circular plate 2 provides fixed support. An annular groove 3 is formed on the outer arc surface of the circular plate 2. Two sets of arc bars 4 are rotatably connected inside the annular groove 3. The arc bars 4 are T-shaped and their external dimensions match the internal dimensions of the annular groove 3, serving as a connection and limiting mechanism. Support plates 5 are fixedly connected to the outer surfaces of both sets of arc bars 4, providing connection and support. Each set of support plates 5 has two plates arranged in a V-shape. The support plates 5 rotate in a scissor-like manner. An extension plate 6 is fixedly connected to the outer surface of the support plate 5, acting as a lever arm. The extension plate 6 is available in different lengths to accommodate the lifting requirements of different sizes of composite slabs. One end of the lifting rope 1 is fixedly connected to the outer surface of the extension plate 6, and the other end of the lifting rope 1 is movably connected to a cable tie 9, which holds the lifting rope... The ends of the circular plate 1 are bundled together for connection with the hoist. The top of the circular plate 2 is provided with a plumb bob 10. The plumb bob 10 is made of a heavy material and has a wear-resistant and corrosion-resistant coating on the outside. The outer surface of the plumb bob 10 is fixedly connected to a connecting rope 11. The connecting rope 11 and the plumb bob 10 form a swing damping effect, which can prevent the stacked plate from swaying during hoisting. One end of the connecting rope 11 is fixedly connected to the outer surface of the hoisting rope 1. The bodies of the two sets of support plates 5 are provided with through slots 12. The inside of the through slots 12 is slidably connected to a pin 13. The outer diameter of the pin 13 is adapted to the inner width of the through slot 12. One end of the pin 13 abuts against the support plate 5, which plays a connecting and supporting role. One end of the pin 13 abuts against the outer surface of the support plate 5. The other end of the pin 13 is fixedly connected to a connecting plate 14. The connecting plate 14 is fixedly connected to the two pins 13, which can drive the two support plates 5 of each set to move synchronously.

[0022] A fixed plate 15 is fixedly connected to the top of the circular plate 2. A screw 16 is rotatably connected through the body of the fixed plate 15. The connection between the screw 16 and the fixed plate 15 is provided with an axial limiting measure. The threads on both sides of the surface of the screw 16 are arranged in opposite directions to facilitate the synchronous reverse movement of the connecting plates 14 on both sides. The two sides of the outer surface of the screw 16 are respectively threaded through to the bodies of the two sets of connecting plates 14.

[0023] A suspension assembly 7 is provided on the outside of the extension plate 6. The suspension assembly 7 includes a slide rail 71. The length of the slide rail 71 is adapted to the length of the extension plate 6. The outer surface of the slide rail 71 is fixedly connected to the outer surface of the extension plate 6. A slider 72 is slidably connected to the outer surface of the slide rail 71. The surface of the slider 72 has a groove with a longitudinal limiting function, and the internal size of the groove is adapted to the external size of the slide rail 71. Both ends of the slide rail 71 are fixedly connected to a locking plate 73, which is fixed by bolts. The slide rail 71 is designed to facilitate the removal of the slider 72, allowing the slider 72 to be connected to extension plates 6 of different specifications. The slider 72 is equipped with a pull rope 74, which is made of the same material as the hoisting rope 1, for suspending the composite plate. The pull rope 74 is designed to be shorter so that the composite plate is integrated with the circular plate 2 when it is hoisted, thus avoiding the problem of the composite plate swaying. One end of the pull rope 74 is fixedly connected to a rope hook 75, which is used to hook the reinforcing bars on the top of the composite plate.

[0024] The bottom of the slider 72 is provided with a cylinder 76, and the top of the cylinder 76 is embedded and rotatably connected to an I-beam wheel 77. The connection between the cylinder 76 and the I-beam wheel 77 allows for radial rotation so that the rope hook 75 can face the reinforcing bars at the top of the composite plate. The top of the I-beam wheel 77 is fixedly connected to the bottom of the slider 72. The bottom of the cylinder 76 is provided with a rotating groove 78, and an ear plate 79 is rotatably connected inside the rotating groove 78. The ear plate 79 rotates inside the rotating groove 78, which allows the rope hook 75 to approach the composite plate and hook up with the top reinforcing bars, thereby avoiding the problem of wear caused by twisting the pull rope 74 when the rope hook 75 hooks the reinforcing bars. The outer surface of the ear plate 79 is fixedly connected to the other end of the pull rope 74.

[0025] The extension plate 6 is provided with a positioning component 8. The positioning component 8 includes two rotating plates 81 that fit together vertically. The rotating plates 81 are located on the outside of the extension plate 6. A battery compartment 83 is provided on the top of each of the two rotating plates 81. A battery (not shown in the figure) is provided inside the battery compartment 83 for power supply. The battery compartment 83 is located on the top of the rotating plates 81, which facilitates the removal and placement of the battery and prevents the battery from falling out. A groove 84 is provided on the bottom of each of the two rotating plates 81. An optical module 85 is provided inside the groove 84. The optical module 85 can be made of a camera with a variable aperture.

[0026] The interior of the turntable 81 has an inner cavity 86, which reduces the overall weight of the turntable 81 and provides storage space. A mounting plate 87 is fixedly connected inside the inner cavity 86. The surface of the mounting plate 87 has a mounting station (not shown in the figure) for fixing the optical module 85. The bottom of the mounting plate 87 is fixedly connected to the top of the optical module 85. A control board 88 is fixedly connected to the top of the mounting plate 87. The control board 88 is made of a PCB board with control circuitry. The PCB board is electrically connected to the battery compartment 83 and the power connection components in the mounting station of the optical module 85. Signal modules 89 are provided on both sides of the mounting plate 87. The signal modules 89 are electrically connected to the control circuitry of the control board 88 and are used for wireless signal transmission. Two modules are provided to improve the stability and accuracy of signal transmission. The outer surface of the signal modules 89 is fixedly connected to the interior of the inner cavity 86.

[0027] An adjustment unit 82 is provided on the outside of the rotating plate 81. The adjustment unit 82 includes a circular groove 821, which is formed on the top of the upper rotating plate 81. A rotating rod 822 is rotatably connected inside the circular groove 821. The connection between the rotating rod 822 and the rotating plate 81 is provided with an axial limiting measure (not shown in the figure) to improve the relative stability of the position of the rotating plate 81. One end of the rotating rod 822 is rotatably connected to the bodies of the two rotating plates 81 in sequence and extends to the outside of the lower rotating plate 81. A key shaft 823 is fixedly connected through the outer surface of the rotating rod 822. A bracket 824 is slidably connected through the outer surface of the key shaft 823. The bracket 824 is U-shaped and can only slide longitudinally by connecting with the key shaft 823. The outer surface of the bracket 824 is slidably connected to the inside of the circular groove 821. There are two sets of card slots 825 connected together. The lower set of card slots 825 has two slots at equal angles, and the upper set of card slots 825 has four slots at equal angles. The four upper card slots 825 are connected to the two lower card slots 825 respectively, and the upper and lower card slots 825 are engaged with the two ends of the card holder 824, so that the upper and lower rotating plates 81 can be kept parallel and perpendicular. As a preferred method, a magnetic block (not shown in the figure) can be set inside the lower card slot 825. The magnetic attraction between the magnetic block and the card holder 824 improves the stability of the angle between the card holder 824 and the two rotating plates 81. One set of card slots 825 is opened at the bottom of the upper rotating plate 81 and is in a through state, and the other set of card slots 825 is opened at the top of the lower rotating plate 81. The two ends of the card holder 824 are engaged with the interior of the two sets of card slots 825 respectively.

[0028] A sliding plate 826 is provided on the outside of the rotating rod 822. A through-slot is formed on the sliding plate 826 to adjust the relative position of the rotating plates 81, so that the optical module 85 on the rotating plates 81 can be vertically aligned with the markings in the mounting area of ​​the composite plate. The outer surface of the sliding plate 826 is fixedly connected to the outer surface of the extension plate 6. The outer surfaces of both rotating plates 81 are movably connected to the interior of the sliding plate 826. A ball screw 827 is provided inside the sliding plate 826. The sliding end of the ball screw 827 can drive the rotating plates 81 to reciprocate within the sliding plate 826 via the rotating rod 822. The other end of the rotating rod 822 is connected to a rotary damper (not shown in the figure). The sliding end of the ball screw 827 is connected to the key shaft 823 so that the rotating rod 822 can improve the radial stability of the rotating plate 81. One end of the ball screw 827 is rotatably connected to the body of the slide plate 826 and extends to the outside of the slide plate 826. The sliding end of the ball screw 827 is rotatably connected to the other end of the rotating rod 822. A compression spring 828 is sleeved on the outside of the key shaft 823. The compression spring 828 can improve the stability of the card holder 824 through its own elasticity so that the card holder 824 can be stably engaged with the card slot 825. The two ends of the compression spring 828 are fixedly connected to the outer surface of the card holder 824 and the sliding end of the ball screw 827, respectively.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] Working principle: According to the specifications of the composite slab to be constructed, select the corresponding specification of the extension plate 6, and fix both ends of the extension plate 6 to the support plate 5 and the slide plate 826 respectively with bolts. Then, slide the slider 72 to the slide rail 71 at the bottom of the extension plate 6, and fix the clamping plate 73 at both ends of the slide rail 71 to limit the sliding of the slider 72. In this way, the extension plate 6 of the corresponding specification is fixed on the four support plates 5 in sequence. Then, hold the screw 16 by hand or clamp the screw 16 with a wrench and screw it to connect the screw 16 to the two sets of connecting plates 14 through the thread, so that the connecting plate 14 drives the pin 13 to slide inside the through groove 12, thereby driving the pin 13 to drive each set of two support plates 5 to move synchronously in opposite directions around the outer arc surface of the circular plate 2, so as to adjust the included angle of each set of two support plates 5, so that the line connecting the edge and center of the composite slab is parallel to the axis of the ball screw 827. Next, hold the card holder 824 and lift it along the key shaft 823 to disengage it from the locking of the rotating plate 81. Then rotate the upper rotating plate 81 so that the upper and lower rotating plates 81 are perpendicular to each other. Then release the card holder 824 and let the spring 828 return to its original position so that the card holder 824 maintains the angle between the upper and lower rotating plates 81 by locking with the upper and lower sets of card slots 825. Then rotate the two rotating plates 81 by the key shaft 823 and the rotating rod 822 so that the two rotating plates 81 are parallel to the adjacent sides of the stacked plate. At the same time, according to the distance between the installation position mark and the stacked plate after installation, attach the crank handle to the exposed end of the ball screw 827. Rotate the ball screw 827 by the crank handle so that the two rotating plates 81 move to the corresponding position inside the slide plate 826 so that the rotating plates 81 can overlap with the mark during hoisting. During hoisting, the crane moves the circular plate 2 to directly above the center of the top of the composite slab using the hoisting rope 1. Then, it picks up the rope hook 75 and pulls the slider 72 along the slide rail 71, allowing the rope hook 75 to move to the outside of the top reinforcing bar of the composite slab. Next, the cylinder 76 rotates around the I-beam 77 so that the rope hook 75 is aligned with the top reinforcing bar. Pulling the rope hook 75 again causes the ear plate 79 to rotate inside the rotating groove 78, thus hooking the rope hook 75 with the top reinforcing bar. After the four rope hooks 75 are hooked together, they form an inverted cone-shaped suspension of the composite slab (i.e., all four pull ropes 74 pull the composite slab obliquely upwards). It can be adapted to the hoisting of composite panels of different specifications, and can avoid the problem of swaying of composite panels during hoisting. Then, the crane hoists the composite panel through the hoisting rope 1. When the composite panel is moved directly above the installation area, the damping effect formed by the connecting rope 11 and the plumb ball 10 can make the composite panel quickly stabilized. Then, the optical module 85 inside the groove 84 identifies the mark, determines the installation accuracy, and generates a positioning confirmation signal. The positioning confirmation signal is transmitted to the operator through the control board 88 and the signal module 89. Then, the crane can lower the composite panel to install it on the installation position.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary positioning device for the construction of precast composite slabs, comprising a lifting rope (1), characterized in that: The suspension rope (1) is provided with a stabilizing mechanism on its exterior. The stabilizing mechanism includes a circular plate (2). The outer arc surface of the circular plate (2) is provided with an annular groove (3). Two sets of arc strips (4) are rotatably connected inside the annular groove (3). Support plates (5) are fixedly connected to the outer surfaces of the two sets of arc strips (4). Extension plates (6) are fixedly connected to the outer surfaces of the support plates (5). One end of the suspension rope (1) is fixedly connected to the outer surface of the extension plate (6). The other end of the suspension rope (1) is movably connected to a cable tie sleeve (9). The top of the circular plate (2) is provided with a plumb bob (10), and a connecting rope (11) is fixedly connected to the outer surface of the plumb bob (10). One end of the connecting rope (11) is fixedly connected to the outer surface of the hanging rope (1). Both sets of support plates (5) have through slots (12) in their bodies. A pin (13) is slidably connected inside the through slot (12). One end of the pin (13) abuts against the outer surface of the support plate (5), and the other end of the pin (13) is fixedly connected to a connecting plate (14).

2. The auxiliary positioning device for precast composite slab construction according to claim 1, characterized in that: The top of the circular plate (2) is fixedly connected to a fixed plate (15), and the body of the fixed plate (15) is rotatably connected to a screw (16). The two sides of the outer surface of the screw (16) are respectively threadedly connected to the bodies of two sets of connecting plates (14).

3. The auxiliary positioning device for precast composite slab construction according to claim 1, characterized in that: The extension plate (6) is provided with a suspension assembly (7) on its exterior. The suspension assembly (7) includes a slide rail (71). The outer surface of the slide rail (71) is fixedly connected to the outer surface of the extension plate (6). A slider (72) is slidably connected to the outer surface of the slide rail (71). Both ends of the slide rail (71) are fixedly connected to a locking plate (73). A pull rope (74) is provided on the exterior of the slider (72). One end of the pull rope (74) is fixedly connected to a rope hook (75).

4. The auxiliary positioning device for precast composite slab construction according to claim 3, characterized in that: The bottom of the slider (72) is provided with a cylinder (76), and the top of the cylinder (76) is embedded and rotatably connected with an I-beam wheel (77). The top of the I-beam wheel (77) is fixedly connected to the bottom of the slider (72). The bottom of the cylinder (76) is provided with a rotating groove (78), and an ear plate (79) is rotatably connected inside the rotating groove (78). The outer surface of the ear plate (79) is fixedly connected to the other end of the pull rope (74).

5. The auxiliary positioning device for precast composite slab construction according to claim 1, characterized in that: The extension plate (6) is provided with a positioning component (8) on its exterior. The positioning component (8) includes two rotating plates (81) that fit together vertically. The rotating plates (81) are located on the exterior of the extension plate (6). A battery compartment (83) is provided on the top of each of the two rotating plates (81). A groove (84) is provided on the bottom of each of the two rotating plates (81). An optical module (85) is provided inside the groove (84).

6. The auxiliary positioning device for precast composite slab construction according to claim 5, characterized in that: The rotating plate (81) has an inner cavity (86) inside, and a mounting plate (87) is fixedly connected inside the inner cavity (86). The bottom of the mounting plate (87) is fixedly connected to the top of the optical module (85), and a control plate (88) is fixedly connected to the top of the mounting plate (87). Signal modules (89) are provided on both sides of the mounting plate (87), and the outer surface of the signal modules (89) is fixedly connected to the inside of the inner cavity (86).

7. An auxiliary positioning device for precast composite slab construction according to claim 5, characterized in that: An adjustment unit (82) is provided on the outside of the rotating plate (81). The adjustment unit (82) includes a circular groove (821). The circular groove (821) is opened on the top of the upper rotating plate (81). A rotating rod (822) is rotatably connected inside the circular groove (821). One end of the rotating rod (822) is rotatably connected to the bodies of the two rotating plates (81) and extends to the outside of the lower rotating plate (81). A key shaft (823) is fixedly connected through the outer surface of the rotating rod (822). A key shaft (823) has a sliding bracket (824) that is slidably connected to its outer surface. The outer surface of the bracket (824) is slidably connected to the inside of a circular groove (821). The inside of the circular groove (821) is connected to two sets of slots (825). One set of slots (825) is located at the bottom of the upper rotating plate (81) and is in a through state. The other set of slots (825) is located at the top of the lower rotating plate (81). The two ends of the bracket (824) are respectively engaged with the inside of the two sets of slots (825).

8. An auxiliary positioning device for precast composite slab construction according to claim 7, characterized in that: The rotating rod (822) is provided with a sliding plate (826) on its outside. The outer surface of the sliding plate (826) is fixedly connected to the outer surface of the extension plate (6). The outer surfaces of the two rotating plates (81) are movably connected to the inside of the sliding plate (826). The sliding plate (826) is provided with a ball screw (827) inside. One end of the ball screw (827) is rotatably connected to the body of the sliding plate (826) and extends to the outside of the sliding plate (826). The sliding end of the ball screw (827) is rotatably connected to the other end of the rotating rod (822). The key shaft (823) is sleeved with a compression spring (828). The two ends of the compression spring (828) are fixedly connected to the outer surface of the bracket (824) and the sliding end of the ball screw (827), respectively.

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