A concrete prefabricated component hoisting device and construction method

Abstract

The invention provides a concrete prefabricated component hoisting device and a construction method, belonging to the technical field of building construction. The device comprises two groups of hoisting frames and a detection mechanism respectively arranged at two ends of the prefabricated component; the hoisting frame comprises a balance beam, a connecting rod and a cross beam, the cross beam is arranged at the bottom of the prefabricated component, the balance beam is arranged above the prefabricated component, and the connecting rod is vertically arranged between the balance beam and the cross beam; the detection mechanism comprises a magnetic ball, a positioning sensor, an electronic tag and a central control console, the magnetic ball is arranged between the two groups of hoisting frames, a magnetic induction sensor is arranged inside the magnetic ball, the positioning sensor and the electronic tag are both embedded in the surface of the prefabricated component, and the output ends of the magnetic induction sensor and the positioning sensor are both communicatively connected with the central control console. The device solves the problems of large flexibility of the hoisting rope and unbalanced hoisting in the traditional hoisting method through the hoisting frame, and is convenient and reliable to use. At the same time, the stability of the hoisting process is detected in real time through the detection mechanism to ensure the safety of the hoisting process.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a prefabricated concrete component hoisting device and a construction method. Background Art

[0002] Precast concrete components are now widely used in construction projects such as bridges and house construction. However, due to the large size of precast components, for example, in bridge erection, large-scale bridge erection machinery is usually used for lifting during the erection process. However, when a bridge erection machine cannot be used, a steel wire rope (or sling) is usually used to pass through the lifting hole to bundle the precast concrete components. The rope is then hung on a lifting equipment such as a gantry crane or a crane to achieve the transportation and erection of the precast box girder. Due to the contact between the rope and the precast component, it is easy to damage the lifting hole and belly of the component, and it is also very easy to damage the rope, which not only affects the quality of the box girder, but also brings safety hazards to the reuse of the rope. During the lifting process, both ends need to be lifted at the same time, but due to the large flexibility of the rope or improper operation, the precast component is prone to tilting, which brings great difficulties to the installation of the precast component and requires constant adjustment.

[0003] The lifting of large prefabricated components is a key step in structural construction. Currently, most lifting operations are still managed using traditional manual command and the crane's own stand-alone monitoring system, lacking the use of information technology. In the construction industry, there is also little research on the detection of the posture during the lifting process, making the risk of prefabricated component lifting construction uncontrollable. Summary of the invention

[0004] The embodiment of the present invention provides a concrete prefabricated component lifting device and construction method, which solves the problems of large flexibility of the lifting rope and unbalanced lifting in the traditional lifting method through a lifting frame, and the prefabricated components are not easily damaged during the lifting process. The use is convenient and reliable, and the stability of the lifting process is detected in real time by a detection mechanism to ensure the safety of the lifting process.

[0005] In view of the above problems, the technical solution proposed by the present invention is:

[0006] The present invention provides a prefabricated concrete component hoisting device, comprising two sets of hoisting frames and a detection mechanism respectively arranged at both ends of the prefabricated component;

[0007] The hoisting frame includes a balance beam, a connecting rod and a cross beam, wherein the cross beam is arranged at the bottom of the prefabricated component, the balance beam is arranged above the prefabricated component, a lifting ring for connecting a lifting machine is arranged at the top center of the balance beam, two connecting rods are arranged and vertically arranged between the balance beam and the cross beam, and collars are symmetrically arranged at the bottom of the balance beam and the top of the cross beam, and both ends of the connecting rod are detachably connected to the collars through pins;

[0008] The detection mechanism includes a magnetic ball, a positioning sensor, an electronic tag and a central console. The magnetic ball is arranged between the two groups of the hoisting frames. The magnetic ball is used to collect posture monitoring data of the prefabricated component hoisting process. A magnetic induction sensor is arranged inside the magnetic ball. The positioning sensor and the electronic tag are both embedded in the surface of the prefabricated component. The positioning sensor is used to locate the position information of the prefabricated component in real time. The electronic tag is bound to the information of the prefabricated component, including the component number, size, weight and production date. The output ends of the magnetic induction sensor and the positioning sensor are both communicatively connected to the central console. The central console is used to receive sensor detection signals and monitor the hoisting posture of the prefabricated component in real time.

[0009] As a preferred technical solution of the present invention, both ends of the connecting rod are provided with a through socket, the central axis of the socket is perpendicular to the central axis of the connecting rod, the collar is welded and fixed to the balance beam and the cross beam, the outer side of the collar is provided with a through mounting hole, the center of the mounting hole coincides with the center of the socket, and the pin shaft is inserted into the mounting hole and the socket.

[0010] As a preferred technical solution of the present invention, the inner wall of the mounting hole is symmetrically provided with a limiting groove, and both ends of the pin shaft are symmetrically provided with a limiting block, the shape and size of the limiting block are adapted to the shape and size of the limiting groove, the limiting block is embedded in the limiting groove, and the shape and size of the jack are the same as the shape and size of the mounting hole.

[0011] As a preferred technical solution of the present invention, both ends of the pin shaft are provided with screws after extending to the outside of the ring, and both ends of the pin shaft are provided with limit nuts, the limit nuts are threadedly connected to the screw rod, and one end of the limit nut abuts against the outer wall of the ring.

[0012] As a preferred technical solution of the present invention, an anti-skid pad is arranged on the top of the crossbeam, the anti-skid pad is made of rubber material, and the top of the anti-skid pad abuts against the bottom of the prefabricated component.

[0013] As a preferred technical solution of the present invention, two balance beams close to each other are each provided with a hook, and two elastic ropes are symmetrically provided on the outer wall of the magnetic ball, and the other ends of the elastic ropes are respectively connected to the hooks, and the material and length of the two elastic ropes are the same.

[0014] As a preferred technical solution of the present invention, a fixed magnetic block and a moving magnetic block are arranged inside the magnetic moving ball, the fixed magnetic block is fixedly connected to the inner top wall of the magnetic moving ball, the moving magnetic block is movably arranged below the fixed magnetic block, the magnetic poles of one end of the fixed magnetic block and the moving magnetic block that are close to each other are opposite, and the magnetic induction sensor is arranged between the fixed magnetic block and the moving magnetic block.

[0015] As a preferred technical solution of the present invention, a composite layer is provided on the inner bottom wall surface of the magnetic moving ball, the moving magnetic block is slidably arranged on the surface of the composite layer, and the composite layer is made of a nano-composite film.

[0016] On the other hand, a method for hoisting a precast concrete component comprises the following steps:

[0017] S1, prefabricated components enter the site, transport the prefabricated components to the construction site, embed the positioning sensor and electronic tag into the surface of the prefabricated components, and use the card reader to scan the electronic tag and bind the prefabricated component information;

[0018] S2, installation of the hoisting frame, place the balance beam and the cross beam on the top and bottom of the prefabricated component respectively, then insert the ends of the two connecting rods into the corresponding collars respectively, align the sockets with the mounting holes, insert the pins into the mounting holes in turn, and install the limit nuts at both ends of the pins;

[0019] S3, detection mechanism installation, hook the elastic ropes on both sides of the magnetic ball to the hooks on the hanging frames on both sides respectively, and then establish data transmission connection between the positioning sensor and the magnetic induction sensor in the magnetic ball and the central console, so that the central console can receive sensor signals in real time;

[0020] S4, prefabricated component hoisting, using a handheld device pre-connected to the central console to scan the electronic tag on the prefabricated component, and after checking the prefabricated component information, use the lifting equipment to hoist the prefabricated component to the installation location, and simultaneously perform the hoisting posture detection during the hoisting process;

[0021] S5, the hoisting device is recovered. After the prefabricated components are installed and fixed, the magnetic ball, hoisting frame, positioning sensor and electronic tag are disassembled in sequence, and the information in the electronic tag is reset.

[0022] As a preferred technical solution of the present invention, in the step S4, the hoisting step of the prefabricated component specifically includes connecting the lifting ring to the lifting equipment, starting the lifting equipment, lifting the balance beam, pulling up the crossbeam through the connecting rod, and the crossbeam drives the prefabricated component to lift and move; the detection step of the hoisting posture specifically includes, the positioning sensor detects the position of the prefabricated component in real time, and transmits the data to the central console for monitoring the hoisting trajectory. At the same time, the magnetic moving ball detects the balance stability data of the hoisting of the prefabricated component. When the stability of the hoisting frames on both sides changes, the moving magnet slides in the magnetic moving ball to maintain the horizontality, causing the magnetic balance in the magnetic moving ball to change. After the magnetic induction sensor detects the magnetic change, it transmits the signal to the central console. The central console determines the hoisting posture according to the motion trajectory signal and the balance deviation signal and sends a warning signal.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] (1) The hoisting frames are all made of rigid components, which have good stability during the hoisting process, so that the prefabricated components are always in a horizontal position during the hoisting process, which is convenient for positioning and can reduce the damage of the prefabricated components. At the same time, the hoisting frames can be used repeatedly and have a long service life. Compared with traditional hoisting methods, the operation is simple and the construction is safe, which greatly improves the efficiency and practicality of hoisting prefabricated components, and also has obvious advantages in safety and economy;

[0025] (2) The detection mechanism detects the movement trajectory and posture of the prefabricated component in real time. The magnetic ball reflects the balance change of the prefabricated component. The magnetic induction sensor collects the change signal, thereby accurately judging the stability of the prefabricated component during the lifting process, effectively helping construction personnel to detect lifting abnormalities in time, reduce lifting risks, and ensure the safety and reliability of lifting construction.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a precast concrete component hoisting device disclosed in an embodiment of the present invention;

[0028] Figure 2 is a structural schematic diagram of a hanging frame disclosed in an embodiment of the present invention;

[0029] Figure 3 yes Figure 2 Schematic diagram of the decomposed structure at A in the middle;

[0030] Figure 4It is a schematic diagram of the internal structure of the magnetic moving ball disclosed in the embodiment of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the magnetic moving ball disclosed in the embodiment of the present invention when the internal magnetic force balance changes;

[0032] Figure 6 is an electrical connection block diagram of the detection mechanism disclosed in the embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of the steps of a method for hoisting a prefabricated concrete component disclosed in an embodiment of the present invention;

[0034] Explanation of the reference numerals in the accompanying drawings: 100, lifting frame; 101, balance beam; 1011, lifting ring; 1012, hook; 102, connecting rod; 1021, socket; 103, crossbeam; 1031, anti-slip pad; 104, ring; 1041, mounting hole; 1042, limiting groove; 105, pin; 1051, limiting block; 1052, screw; 106, limiting nut; 200, detection mechanism; 201, magnetic ball; 2011, elastic rope; 2012, fixed magnetic block; 2013, moving magnetic block; 2014, magnetic induction sensor; 2015, composite layer; 202, positioning sensor; 203, electronic tag; 204, center console. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] Embodiment 1

[0041] See attached Figure 1-6 As shown, the present invention provides a technical solution: a precast concrete component hoisting device, comprising two sets of hoisting frames 100 and a detection mechanism 200 respectively arranged at both ends of the precast component, the hoisting frame 100 pulls both ends of the precast component upward synchronously to ensure the hoisting balance of the precast component, and the detection mechanism 200 collects the posture parameters of the precast component in real time during the hoisting process;

[0042] The hoisting frame 100 includes a balance beam 101, a connecting rod 102 and a cross beam 103. The cross beam 103 is arranged at the bottom of the prefabricated component. The cross beam 103 lifts the bottom of the prefabricated component, increases the force-bearing area, and improves the force load. The balance beam 101 is arranged above the prefabricated component. The top center of the balance beam 101 is provided with a lifting ring 1011 for connecting a lifting machinery. The balance beam 101 plays a balancing role to prevent the hoisting frame 100 from tilting and sliding. Two connecting rods 102 are provided and are vertically arranged between the balance beam 101 and the cross beam 103. The bottom of the balance beam 101 and the top of the cross beam 103 are symmetrically provided with rings 104. Both ends of the connecting rod 102 are connected by The pin 105 is detachably connected to the collar 104. A through hole is provided on the prefabricated component at a position corresponding to the connecting rod 102. The through hole avoids the structural reinforcement of the prefabricated component to reduce the impact on the structural strength of the component. The connecting rod 102 passes through the through hole and respectively connects and fixes the balance beam 101 and the cross beam 103. The structure of the hanging frame 100 is stable and will not cause damage to the prefabricated component body. The connecting rod 102 is fixedly connected by the pin 105 and the collar 104. The fixing is firm and reliable, avoiding the displacement of the connecting rod 102, and the disassembly and assembly are convenient, which improves the assembly performance of the hanging frame 100, so that the hanging frame 100 can be used for multiple cycles, effectively saving construction costs.

[0043] The detection mechanism 200 includes a magnetic ball 201, a positioning sensor 202, an electronic tag 203 and a central control console 204. The magnetic ball 201 is arranged between two groups of hoisting frames 100. The magnetic ball 201 is used to collect posture monitoring data during the hoisting process of prefabricated components. A magnetic induction sensor 2014 is arranged inside the magnetic ball 201. The lifting level of the two groups of hoisting frames 100 affects the change of magnetic flux lines in the magnetic ball 201. The magnetic flux line sensor measures the magnetic induction intensity according to the Hall effect, thereby obtaining a hoisting balance signal. The positioning sensor 202 and the electronic tag 203 are both embedded in the surface of the prefabricated component. The positioning sensor 202 is used to locate the position information of the prefabricated component in real time. The electronic tag 203 is bound to the information of the prefabricated component, including the component number, size, weight and production date. The output ends of the magnetic induction sensor 2014 and the positioning sensor 202 are both communicated with the central control console 204. The central control console 204 is used to receive sensor detection signals and monitor the hoisting posture of the prefabricated component in real time.

[0044] The embodiment of the present invention is also implemented through the following technical solutions.

[0045] In the embodiment of the present invention, both ends of the connecting rod 102 are provided with through-holes 1021, the central axis of the hole 1021 is perpendicular to the central axis of the connecting rod 102, the collar 104 is welded and fixed to the balance beam 101 and the cross beam 103, the outer side of the collar 104 is provided with a through-mounting hole 1041, the center of the mounting hole 1041 coincides with the center of the hole 1021, the pin 105 is inserted into the mounting hole 1041 and the inside of the hole 1021, after the connecting rod 102 is inserted into the collar 104, the connecting rod 102 and the collar 104 are plugged and limited by the pin 105, so that the connecting rod 1 02 The balance beam 101 and the cross beam 103 are stably connected, the inner wall of the mounting hole 1041 is symmetrically provided with a limiting groove 1042, and both ends of the pin shaft 105 are symmetrically provided with a limiting block 1051, the shape and size of the limiting block 1051 are adapted to the shape and size of the limiting groove 1042, the limiting block 1051 is embedded in the limiting groove 1042, the shape and size of the jack 1021 are the same as the shape and size of the mounting hole 1041, the cooperation between the limiting block 1051 and the limiting groove 1042 prevents the pin shaft 105 from rotating, and ensures that the pin shaft 105 is fixed in the mounting hole 1041.

[0046] In an embodiment of the present invention, both ends of the pin shaft 105 are extended to the outside of the ring 104 and are provided with a screw rod 1052. Both ends of the pin shaft 105 are provided with a limiting nut 106. The limiting nut 106 is threadedly connected to the screw rod 1052, and one end of the limiting nut 106 abuts against the outer wall of the ring 104. The cooperation between the limiting nut 106 and the screw rod 1052 at the end of the pin shaft 105 prevents the pin shaft 105 from being displaced and coming out. The limiting nut 106 limits both ends of the pin shaft 105, and cooperates with the anti-rotation structure of the limiting block 1051 to prevent the pin shaft 105 from being displaced and coming out, thereby effectively preventing the possibility of the connecting rod 102 falling off during the lifting process, thereby ensuring safe and stable lifting.

[0047] In an embodiment of the present invention, an anti-skid pad 1031 is provided on the top of the beam 103. The anti-skid pad 1031 is made of rubber. The top of the anti-skid pad 1031 abuts against the bottom of the prefabricated component. The anti-skid pad 1031 increases the friction between the prefabricated component and the beam 103, making the prefabricated component more stable and ensuring the safety of lifting.

[0048] In an embodiment of the present invention, two balance beams 101 that are close to each other are both provided with a hook 1012, and two elastic ropes 2011 are symmetrically provided on the outer wall of the magnetic ball 201. The other ends of the elastic ropes 2011 are respectively connected to the hooks 1012. The two elastic ropes 2011 are made of the same material and have the same length. The elastic ropes 2011 install the magnetic ball 201 above the prefabricated component. The elastic force of the elastic ropes 2011 keeps the magnetic ball 201 at the center position of the two sets of lifting frames 100, and is aligned with the center of gravity of the prefabricated component as much as possible, so that the magnetic ball 201 can more accurately detect the lifting balance posture.

[0049] In the embodiment of the present invention, a fixed magnetic block 2012 and a moving magnetic block 2013 are arranged inside the magnetic moving ball 201, the fixed magnetic block 2012 is fixedly connected to the inner top wall of the magnetic moving ball 201, and the moving magnetic block 2013 is movably arranged below the fixed magnetic block 2012, and the magnetic poles of the ends of the fixed magnetic block 2012 and the moving magnetic block 2013 that are close to each other are opposite, and they are respectively in the shape of a circular arc protrusion and a circular arc concave structure, so that a repulsive force is formed between the fixed magnetic block 2012 and the moving magnetic block 2013, and the magnetic induction sensor 2014 is arranged between the fixed magnetic block 2012 and the moving magnetic block 2013, refer to the attached Figure 4-5 , the dotted lines in the figure are magnetic flux lines. When the fixed magnetic block 2012 and the moving magnetic block 2013 are in a balanced state, the fixed magnetic block 2012 and the moving magnetic block 2013 are aligned with the center of the magnetic moving ball 201. The magnetic force is strong near the center of the magnetic moving ball 201, and weakens along the center to the outer components around. When the lifting balance deviates, the magnetic moving ball 201 rotates, driving the fixed magnetic block 2012 to rotate, while the moving magnetic block 2013 always remains horizontal in the magnetic moving ball 201. Therefore, the magnetic balance between the fixed magnetic block 2012 and the moving magnetic block 2013 is destroyed, and the magnetic force gathers toward the low position direction of the magnetic moving ball 201, thereby changing the magnetic field. The magnetic induction sensor 2014 collects the magnetic change signal and transmits it to the central console 204 for early warning.

[0050] In an embodiment of the present invention, a composite layer 2015 is provided on the inner bottom wall surface of the magnetic moving ball 201, and the moving magnetic block 2013 is slidably arranged on the surface of the composite layer 2015. The composite layer 2015 adopts a nano-composite film, which has stable chemical properties and good self-lubrication and wear resistance. The composite layer 2015 reduces the friction between the moving magnetic block 2013 and the inner wall of the magnetic moving ball 201, so that when the magnetic moving ball 201 is deflected, the moving magnetic block 2013 can slide quickly and sensitively to maintain horizontality, so that the signal acquisition of the magnetic induction sensor 2014 is more accurate and the response speed is faster.

[0051] Embodiment 2

[0052] See attached Figure 7 As shown, an embodiment of the present invention further provides a method for hoisting a prefabricated concrete component, comprising the following steps:

[0053] S1, prefabricated components are transported to the construction site, the positioning sensor 202 and the electronic tag 203 are embedded and installed on the surface of the prefabricated components, and the electronic tag 203 is scanned and bound to the prefabricated component information using a card reader;

[0054] S2, install the hanging frame 100, place the balance beam 101 and the cross beam 103 on the top and bottom of the prefabricated component respectively, then insert the ends of the two connecting rods 102 into the corresponding collars 104 respectively, align the insertion hole 1021 with the installation hole 1041, insert the pin 105 into the installation hole 1041 in turn, and install the limit nuts 106 at both ends of the pin 105;

[0055] S3, the detection mechanism 200 is installed, the elastic ropes 2011 on both sides of the magnetic ball 201 are hooked to the hooks 1012 on the hanging frames 100 on both sides, and then the positioning sensor 202 and the magnetic induction sensor 2014 in the magnetic ball 201 are connected to the central console 204 to establish a data transmission connection, so that the central console 204 can receive the sensor signal in real time;

[0056] S4, prefabricated component hoisting, using a handheld device pre-connected to the central console 204 to scan the electronic tag 203 on the prefabricated component, and after checking the prefabricated component information, use the lifting equipment to hoist the prefabricated component to the installation position, and synchronously detect the hoisting posture during the hoisting process;

[0057] Among them, the hoisting steps of the prefabricated components specifically include connecting the lifting ring 1011 to the lifting equipment, starting the lifting equipment, lifting the balance beam 101, pulling up the crossbeam 103 through the connecting rod 102, and the crossbeam 103 drives the prefabricated components to lift and move; the detection step of the hoisting posture specifically includes, the positioning sensor 202 detects the position of the prefabricated components in real time, and transmits the data to the central control console 204 for monitoring the hoisting trajectory. At the same time, the magnetic ball 201 detects the balance stability data of the prefabricated component hoisting. When the stability of the hoisting frames 100 on both sides changes, the moving magnet block 2013 slides in the magnetic ball 201 to maintain the horizontality, causing the magnetic balance in the magnetic ball 201 to change. After the magnetic induction sensor 2014 detects the magnetic change, it transmits the signal to the central control console 204. The central control console 204 judges the hoisting posture according to the motion trajectory signal and the balance deviation signal and sends out a warning signal.

[0058] S5, the hoisting device is recovered, and after the prefabricated components are installed and fixed, the magnetic ball 201, the hoisting frame 100, the positioning sensor 202 and the electronic tag 203 are disassembled in sequence, and the information in the electronic tag 203 is reset.

[0059] This method monitors the posture of the prefabricated component lifting process, ensures the safety of the lifting, and timely feedbacks and warns the posture parameters of the lifting process, which is convenient for the control of the lifting and hoisting equipment, making the lifting of prefabricated components more precise, accurate and reliable, and also facilitating construction safety management.

[0060] It should be noted that the specific models and specifications of the magnetic induction sensor 2014, positioning sensor 202, electronic tag 203 and central console 204 need to be selected and determined according to the actual specifications of the device, etc. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0061] The power supply and principle of the magnetic induction sensor 2014, the positioning sensor 202, the electronic tag 203 and the central control console 204 are clear to those skilled in the art and will not be described in detail here.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A precast concrete component hoisting device, characterized in that: It comprises two sets of hanging frames (100) and a detection mechanism (200) respectively arranged at two ends of a prefabricated component; The hoisting frame (100) comprises a balance beam (101), a connecting rod (102) and a cross beam (103); the cross beam (103) is arranged at the bottom of the prefabricated component; the balance beam (101) is arranged above the prefabricated component; a lifting ring (1011) for connecting a lifting machine is arranged at the top center of the balance beam (101); two connecting rods (102) are arranged and are vertically arranged between the balance beam (101) and the cross beam (103); collars (104) are symmetrically arranged at the bottom of the balance beam (101) and the top of the cross beam (103); both ends of the connecting rod (102) are detachably connected to the collars (104) via a pin shaft (105); and both ends of the pin shaft (105) are symmetrically arranged with limit blocks (1051) and limit nuts (106); The detection mechanism (200) comprises a magnetic ball (201), a positioning sensor (202), an electronic tag (203) and a central control console (204); the magnetic ball (201) is arranged between two groups of the hoisting frames (100); the magnetic ball (201) is used to collect posture monitoring data during the hoisting process of the prefabricated component; two elastic ropes (2011) are symmetrically arranged on the outer wall of the magnetic ball (201); and a positioning sensor (202) is arranged inside the magnetic ball (201). A magnetic block (2012) and a moving magnetic block (2013), wherein the fixed magnetic block (2012) is fixedly connected to the inner top wall of the magnetic moving ball (201), and the moving magnetic block (2013) is movably arranged below the fixed magnetic block (2012). The magnetic poles of the ends of the fixed magnetic block (2012) and the moving magnetic block (2013) that are close to each other are opposite, and they are respectively in the form of a circular arc convex and a circular arc concave structure. A magnetic induction sensor (2013) is arranged inside the magnetic moving ball (201). 014), the magnetic induction sensor (2014) is arranged between the fixed magnetic block (2012) and the moving magnetic block (2013), the inner bottom wall surface of the magnetic moving ball (201) is provided with a composite layer (2015), the moving magnetic block (2013) is slidably arranged on the surface of the composite layer (2015), the composite layer (2015) adopts a nano-composite film, the positioning sensor (202) and the electronic tag (203) are both embedded in the surface of the prefabricated component, the positioning sensor (202) is used to locate the position information of the prefabricated component in real time, the electronic tag (203) is bound to the information of the prefabricated component, including the component number, size, weight and production date, the output ends of the magnetic induction sensor (2014) and the positioning sensor (202) are both connected to the central control console (204) for communication, and the central control console (204) is used to receive sensor detection signals and monitor the hoisting posture of the prefabricated component in real time.

2. A precast concrete component hoisting device according to claim 1, characterized in that: Both ends of the connecting rod (102) are provided with through-holes (1021), the central axis of the through-hole (1021) is perpendicular to the central axis of the connecting rod (102), the collar (104) is welded and fixed to the balance beam (101) and the cross beam (103), the outer side of the collar (104) is provided with a through-mounting hole (1041), the center of the mounting hole (1041) coincides with the center of the through-hole (1021), and the pin shaft (105) is inserted into the mounting hole (1041) and the through-hole (1021).

3. A precast concrete component hoisting device according to claim 2, characterized in that: The inner wall of the mounting hole (1041) is symmetrically provided with a limiting groove (1042); the shape and size of the limiting block (1051) are matched with the shape and size of the limiting groove (1042); the limiting block (1051) is embedded in the limiting groove (1042); and the shape and size of the plug hole (1021) are the same as those of the mounting hole (1041).

4. The precast concrete component hoisting device according to claim 1, characterized in that: Both ends of the pin shaft (105) are provided with screw rods (1052) after extending to the outside of the collar (104), the limiting nut (106) is threadedly connected to the screw rod (1052), and one end of the limiting nut (106) abuts against the outer wall of the collar (104).

5. The precast concrete component hoisting device according to claim 1, characterized in that: An anti-skid pad (1031) is provided on the top of the crossbeam (103); the anti-skid pad (1031) is made of rubber material; the top of the anti-skid pad (1031) abuts against the bottom of the prefabricated component.

6. The precast concrete component hoisting device according to claim 1, characterized in that: A draw hook (1012) is provided on the side of the two balance beams (101) close to each other, and the other ends of the elastic ropes (2011) are respectively connected to the draw hooks (1012), and the two elastic ropes (2011) are made of the same material and have the same length.

7. A method for hoisting a precast concrete component, applied to a precast concrete component hoisting device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1, prefabricated components are brought into the construction site, the prefabricated components are transported to the construction site, the positioning sensor (202) and the electronic tag (203) are embedded and installed on the surface of the prefabricated components, and the electronic tag (203) is scanned and bound to the prefabricated component information using a card reader; S2, installing the hanging frame (100), placing the balance beam (101) and the cross beam (103) on the top and bottom of the prefabricated component respectively, then inserting the ends of the two connecting rods (102) into the corresponding collars (104) respectively, aligning the insertion holes (1021) with the mounting holes (1041), inserting the pins (105) into the mounting holes (1041) in turn, and installing limit nuts (106) at both ends of the pins (105); S3, installing the detection mechanism (200), hooking the elastic ropes (2011) on both sides of the magnetic ball (201) to the hooks (1012) on the hanging frames (100) on both sides respectively, and then establishing a data transmission connection between the positioning sensor (202) and the magnetic induction sensor (2014) in the magnetic ball (201) and the central console (204), so that the central console (204) can receive sensor signals in real time; S4, hoisting of the prefabricated component, using a handheld device pre-connected to the central control console (204) to scan the electronic tag (203) on the prefabricated component, and after checking the information of the prefabricated component, using a lifting device to hoist the prefabricated component to the installation position, and synchronously detecting the hoisting posture during the hoisting process; S5, the hoisting device is recovered, and after the prefabricated component is installed and fixed, the magnetic ball (201), the hoisting frame (100), the positioning sensor (202) and the electronic tag (203) are disassembled in sequence, and the information in the electronic tag (203) is reset.

8. A method for hoisting and installing precast concrete components according to claim 7, characterized in that: In step S4, the prefabricated component hoisting step specifically includes connecting the lifting ring (1011) to the lifting equipment, starting the lifting equipment, lifting the balance beam (101), pulling up the cross beam (103) through the connecting rod (102), and the cross beam (103) drives the prefabricated component to move upward; the hoisting posture detection step specifically includes the positioning sensor (202) detecting the position of the prefabricated component in real time, and transmitting the data to the central control console (204) for monitoring the hoisting trajectory, and at the same time, the magnetic moving ball ( 201) detects the balance stability data of the prefabricated component hoisting. When the stability of the hoisting frames (100) on both sides changes, the moving magnetic block (2013) slides in the magnetic moving ball (201) to maintain horizontality, causing the magnetic force balance in the magnetic moving ball (201) to change. After the magnetic induction sensor (2014) detects the magnetic force change, it transmits the signal to the central control console (204). The central control console (204) determines the hoisting posture according to the motion trajectory signal and the balance deviation signal and issues a warning signal.

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