A high formwork angle monitoring device and monitoring method

Abstract

The present invention belongs to the technical field of high formwork angle monitoring, and in particular relates to a high formwork angle monitoring device and a monitoring method thereof, wherein the equipment includes: a mounting plate, a pre-tightening mechanism, for adjusting the horizontal position to achieve fixation of the entire device; a first fixing component, for fitting the steel pipe bracket, and assisting the pre-tightening mechanism to achieve installation and fixation of the entire device; an auxiliary fixing component, which is buckled up and down with the first fixing component, thereby assisting the pre-tightening mechanism to complete fixation of the entire device; a monitoring component, for detecting and identifying the high formwork angle; a high formwork safety monitoring system; through the set monitoring component, the change of the light source illumination point is used to realize the monitoring of the angle change of the fixed end of the pipe fitting, and the deformation displacement and angle change generated by the high formwork under stress change are converted into changes in the position of the light source point on the monitoring component, and the displacement signal is converted into an electrical signal and compared, identified and monitored in real time, thereby realizing monitoring and early warning of the high support edge angle.

Description

Technical Field

[0001] The present invention belongs to the technical field of high formwork angle monitoring, and in particular relates to a high formwork angle monitoring device and a monitoring method thereof. Background Art

[0002] With economic development and accelerated urbanization, the construction of large and complex engineering projects is increasing. High-support formwork systems are increasingly being used as the formwork support system for such projects. In actual construction, the manufacturing process for high-support formwork systems is relatively complex. During and after concrete pouring, some settlement and displacement may occur due to pressure. If these changes are significant, collapse accidents can occur, posing a high risk. In recent years, high-support formwork collapse accidents have occurred frequently, posing a serious threat to the construction safety of large buildings. To promptly monitor changes in the high-support formwork support system and prevent accidents, safety monitoring is an integral part of high-support formwork support systems.

[0003] The patent with publication number CN111750818A discloses a high-support formwork angle monitoring device and a monitoring method thereof that can be quickly disassembled. The device includes a detection mechanism and a disassembly mechanism, and the disassembly mechanism includes two magnetic conductors, a connecting piece, a rotatable permanent magnet, and a non-magnetic isolation plate. The two magnetic conductors are arranged opposite to each other and installed on the high-support formwork. A separation space and a rotation space are reserved between the two magnetic conductors. The two ends of the connecting piece connect the detection mechanism and the two magnetic conductors. The rotatable permanent magnet is rotatably installed in the rotating space, and two magnetic poles are arranged oppositely along the radial direction of rotation, and the magnetism of the two magnetic poles is opposite. The present invention only needs to rotate the rotatable permanent magnet 90 degrees to realize the installation or removal process, which is more convenient and quick, and can not only improve the disassembly efficiency, but also improve the utilization rate of the device.

[0004] During the plastic solidification of the high-support formwork, due to actual construction requirements, the concrete on the bottom support solidifies while the upper support requires bending and tying of rebar. Therefore, the formwork itself is subject to vibrations from the operators and construction operations. Because the aforementioned equipment uses magnetic attachment for installation, the magnetic attachment installation method can loosen due to vibrations during construction operations during the plastic solidification of the formwork, causing the monitoring terminal to fall off, resulting in data errors and making it impossible to ensure continuous monitoring. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-support formwork angle monitoring device and a monitoring method thereof to solve the problems raised in the above background technology. To achieve the above purpose, the following technical solution is provided: a high-support formwork angle monitoring device and a monitoring method thereof, wherein the device comprises:

[0006] There are two mounting plates, each of which is slidably provided with a pre-tightening mechanism for adjusting the horizontal position to achieve the fixation of the entire device;

[0007] The first fixing assembly is fixedly connected to the left end of the pre-tightening mechanism and is used to fit the steel pipe bracket and assist the pre-tightening mechanism in achieving the installation and fixation of the entire device;

[0008] The auxiliary fixing assembly is fixedly arranged at the lower end of the mounting plate and is engaged with the first fixing assembly in an upper and lower manner, thereby assisting the pre-tightening mechanism in completing the fixing of the entire device;

[0009] The monitoring component is installed on the vertical surfaces of the two mounting plates and is used to detect and identify the angle of the high formwork;

[0010] The high formwork safety monitoring system is fixed at the upper end of the mounting plate and is used to process the signals collected at the monitoring components and issue early warnings.

[0011] In the present technical solution, when performing angle detection of high formwork, first adjust the position of the auxiliary fixing assembly according to the size of the formwork pipe rack and fix it with bolts; then manually shake the pre-tightening mechanism to drive the pre-tightening mechanism to move through threaded transmission. When the pre-tightening mechanism moves, it drives the first fixing assembly to continuously approach the other side of the formwork steel pipe, and finally fixes it with the auxiliary fixing assembly. At this time, adjust the position of the monitoring assembly to align it. Finally, the high formwork safety monitoring system compares and identifies the angle of the formwork pipe rack by monitoring the changes in the points between the components, and then issues an early warning.

[0012] In any of the above technical solutions, further, the pre-tightening mechanism includes:

[0013] A horizontal slide groove is fixedly provided on the upper end surface of the mounting plate, a slider is provided for sliding in the horizontal slide groove, a translation plate is fixedly provided at the upper end surface of the slider, a threaded hole is fixedly provided at the left end of the translation plate, a protrusion is fixedly provided on the mounting plate, a threaded rod is rotatably provided on the protrusion, the middle part of the threaded rod is threadedly connected to the threaded hole, and a limit block is fixedly provided on the mounting plate, the upper end of the threaded hole is rotatably connected to the limit block, which is used to limit the horizontal degree of freedom of the threaded hole, and a handle is fixedly provided at the upper end of the threaded hole, and the handle is used to drive the threaded hole to rotate by hand.

[0014] In this technical solution, the handle is rotated, and the handle drives the threaded rod and the threaded hole to transmit the thread. At this time, the movable plate drives the slider and the movable plate downward under the action of the threaded transmission. In the process of the movable plate moving downward, the first fixed component is driven close to one end of the high-support formwork pipe. The threaded transmission itself has a self-locking property, so it ensures that the handle can remain stable in any hovering position, thereby realizing the installation and fixation of the entire device by the pre-tightening mechanism.

[0015] In any of the above technical solutions, further, the pre-tightening mechanism further includes:

[0016] The tension spring is fixedly connected to the lower end surface of the translation plate, and the lower end of the tension spring is fixedly set in the middle of the mounting plate. The initial state is in a stretched state, which is used to eliminate the lost motion difference caused by the rotation of the threaded rod and the threaded hole, and ensure the stability of the hovering position of the preload mechanism.

[0017] In this technical solution, when the pre-tightening mechanism is performing thread transmission, due to the idle stroke difference between the threads, the elastic force of the tension spring allows the threaded rod to always fit in with the threaded hole during thread transmission, thereby ensuring the stability of the thread transmission and avoiding the loosening of the pre-tightening mechanism due to external vibrations.

[0018] In any of the above technical solutions, further, the first fixing component includes:

[0019] The movable clamping ring is semicircular in shape. The right end of the movable clamping ring is fixedly connected to the left end of the movable plate, and a first annular clamping groove is fixedly provided at the inner ring end face of the movable clamping ring. The first annular clamping groove is also arc-shaped and is used to contact the mold support pipe rack to assist the pre-tightening mechanism to achieve the fixation of the entire device.

[0020] In this technical solution, the first annular groove can fit tightly with the outer ring wall of the steel pipe, so that the first fixing component can clamp the device under the drive of the pre-tightening mechanism, so that it can be safely and firmly fixed on the detection end of the steel pipe.

[0021] In any of the above technical solutions, further, the auxiliary fixing component includes:

[0022] A square card slot has a threaded hole at its lower end, which is opened at the upper end surface of the mounting plate in the vertical direction. A buckle block is embedded in the square card slot, and the buckle block is fixed to the mounting plate by a fixing bolt, and a second clamping ring is fixed to the left end of the buckle block. A second annular card slot is fixed at the inner ring end surface of the second clamping ring. The second annular card slot is also arc-shaped and is used to contact the other end of the formwork pipe rack, and together with the first fixing component, the entire device is fixed.

[0023] In this technical solution, when the diameter of the pipe changes, the formation of the pre-tightening mechanism cannot ensure that the first fixing component and the auxiliary fixing component can achieve the clamping of the entire device. At this time, by adjusting the connection position of the auxiliary fixing component, it is ensured that the distance between the second annular groove and the first annular groove can clamp the steel pipe.

[0024] In any of the above technical solutions, further, the monitoring component includes: two fixed bars, which are fixedly arranged at the right end surface of the mounting plate respectively, and a slot is provided on the fixed bar, and an insert block is embedded in the slot, the right end of the insert block is fixedly connected to the radio frequency lamp, and the other insert block is fixedly connected to the dark plate, and photosensors are evenly arranged on the dark plate, and the photosensors can perform real-time detection of the angle of the high formwork between the photosensitive sensors and the radio frequency lamp.

[0025] In this technical solution, when the pre-tightening mechanism is driven to rotate, so that the first fixing component and the auxiliary fixing component complete the clamping of the steel pipe, the radio frequency lamp and the photosensitive sensor are inserted into the slot and their positions are adjusted so that the light source emitted by the radio frequency lamp shines on the middle of the photosensitive sensor, and the correction of the initial position of the monitoring component is completed.

[0026] The high formwork safety monitoring system is fixedly connected to the mounting plate, and the high formwork safety monitoring system can measure and identify the landing point of the light source signal on the photosensitive sensor, thereby issuing an early warning of the angular deviation of the high formwork.

[0027] In this technical solution, after the monitoring components have completed the initial calibration, the two ends of the two monitoring components are fixed on the supporting pipe rack of the high-support formwork. When the support formwork collapses due to the solidification of the concrete at the upper end and the quality factors cause the support to be rigidly deformed, or when the support is bent due to excessive stress on the support, the original position between the two monitoring components is destroyed, which causes the irradiation point of the light source emitted by the radio frequency lamp to change on the photosensor; the high-support formwork safety monitoring system compares the change in the light source irradiation point at the monitoring component with the established preset value, thereby realizing early warning of the angle change. The high-support formwork safety monitoring system is composed of multi-layer software and hardware application systems such as sensors, data acquisition terminals, cloud servers, and monitoring centers. Based on the wireless transmission technology of the monitoring components, the collected sensor data is transmitted to the high-support formwork safety monitoring system for real-time comparison and analysis, and finally the data is viewed remotely and in real time through the terminal, thereby achieving the purpose of long-distance and all-round real-time monitoring.

[0028] A monitoring method for a high formwork angle monitoring device:

[0029] Step 1: Adjust the position of the auxiliary fixing assembly according to the size of the formwork support pipe rack and fix it with bolts;

[0030] Step 2: The hand shakes the handle to drive the pre-tightening mechanism to move through the threaded transmission. When the pre-tightening mechanism moves, it drives the first fixing component to continuously approach the other side of the formwork steel pipe, and finally fixes it with the auxiliary fixing component;

[0031] Step 3: Adjust the position of the monitoring component to align it;

[0032] Step 4: The high-support formwork safety monitoring system compares and identifies the angles of the formwork pipe racks by monitoring the changes in the points between the components, and then issues an early warning.

[0033] The beneficial effects of the present invention are as follows: through the setting of the monitoring component, the change of the irradiation point of the light source is utilized to realize the monitoring of the angle change of the fixed end of the pipe fitting, and the deformation displacement and angle change caused by the high-support formwork under stress change are converted into changes in the position of the light source point on the monitoring component. The displacement signal is converted into an electrical signal through the high-support formwork safety monitoring system and compared and identified, and monitored in real time, thereby realizing the monitoring and early warning of the high-support edge angle; and the pre-tightening mechanism is used to realize the installation and fixation of the entire device, avoiding the vibration of the device caused by external environmental factors, thereby avoiding the deviation of the monitoring data and the error early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0035] Figure 2 is a three-dimensional schematic diagram of the pre-tightening mechanism of the present invention;

[0036] Figure 3 It is a three-dimensional schematic diagram of the photosensor in the present invention.

[0037] The reference numbers in the figure are: 10. Mounting plate; 20. Pre-tightening mechanism; 21. Horizontal slide groove; 22. Slider; 23. Translation plate; 24. Limit block; 25. Threaded hole; 26. Bump; 27. Threaded rod; 28. Handle; 29. ​​Tension spring; 30. First fixing component; 31. Movable retaining ring; 32. First annular groove; 40. Auxiliary fixing component; 41. Square groove; 42. Buckle block; 43. Second retaining ring; 44. Second annular groove; 45. Fixing bolt; 50. Monitoring component; 51. Fixing bar; 52. Slot; 53. Insert block; 54. Radio frequency lamp; 55. Dark plate; 56. Photosensitive sensor; 60. High-support formwork safety monitoring system. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0039] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0040] Example 1:

[0041] like Figure 1 As shown, this embodiment provides a high formwork angle monitoring device and a monitoring method thereof, wherein the device includes:

[0042] There are two mounting plates 10, on which a pre-tightening mechanism 20 is slidably provided for adjusting the horizontal position to achieve the fixation of the entire device;

[0043] The first fixing assembly 30 is fixedly connected to the left end of the pre-tightening mechanism 20 and is used to fit the steel pipe bracket and assist the pre-tightening mechanism 20 in achieving the installation and fixation of the entire device;

[0044] The auxiliary fixing assembly 40 is fixedly provided at the lower end of the mounting plate 10 and is engaged with the first fixing assembly 30 in an upper and lower manner, thereby assisting the pre-tightening mechanism 20 in completing the fixing of the entire device;

[0045] The monitoring assembly 50 is provided on the vertical surfaces of the two mounting plates 10 and is used for detecting and identifying the angle of the high formwork;

[0046] The high formwork safety monitoring system 60 is fixedly arranged at the upper end of the mounting plate 10 and is used to process the signals collected at the monitoring component 50 and issue an early warning.

[0047] In the present technical solution, when performing angle detection of high formwork, the position of the auxiliary fixing assembly 40 is first adjusted according to the size of the formwork pipe rack and fixed with bolts; then the pre-tightening mechanism 20 is manually shaken to drive the pre-tightening mechanism 20 to move through threaded transmission. When the pre-tightening mechanism 20 moves, it drives the first fixing assembly 30 to continuously approach the other side of the formwork steel pipe, and finally fixes it with the auxiliary fixing assembly 40. At this time, the position of the monitoring assembly 50 is adjusted to align it. Finally, the high formwork safety monitoring system 60 compares and identifies the angle of the formwork pipe rack by monitoring the changes in the points between the monitoring assemblies 50, and then issues an early warning.

[0048] As shown in Figures 1 and 2, specifically,

[0049] The pre-tightening mechanism 20 comprises:

[0050] A horizontal slide groove 21 is fixedly provided on the upper end surface of the mounting plate 10, and a slider 22 is slidably provided in the horizontal slide groove 21, and a translation plate 23 is fixedly provided at the upper end surface of the slider 22, and a threaded hole 25 is fixedly provided at the left end of the translation plate 23. A protrusion 26 is fixedly provided on the mounting plate 10, and a threaded rod 27 is rotatably provided on the protrusion 26. The middle part of the threaded rod 27 is threadedly connected to the threaded hole 25, and a limit block 24 is fixedly provided on the mounting plate 10. The upper end of the threaded hole 25 is rotatably connected to the limit block 24 for limiting the horizontal degree of freedom of the threaded hole 25. A handle 28 is fixedly provided at the upper end of the threaded hole 25, and the handle 28 is used to drive the threaded hole 25 to rotate by hand.

[0051] In the present technical solution, the handle 28 is rotated, and the handle 28 drives the threaded rod 27 and the threaded hole 25 to perform threaded transmission. At this time, the movable plate 23 drives the slider 22 and the movable plate 23 to move downward under the action of the threaded transmission. In the process of the movable plate 23 moving downward, the first fixing component 30 is driven to approach one end of the high-support formwork pipe. The threaded transmission itself has a self-locking property, so it ensures that the handle 28 can remain stable in any hovering position, thereby realizing the installation and fixation of the entire device by the pre-tightening mechanism 20.

[0052] As shown in Figures 1 and 2, specifically,

[0053] The pre-tightening mechanism 20 further includes:

[0054] The tension spring 29 is fixedly connected to the lower end surface of the translation plate 23, and the lower end of the tension spring 29 is fixedly set in the middle of the mounting plate 10. The initial state is in a stretched state, which is used to eliminate the lost motion difference caused by the rotation of the threaded rod 27 and the threaded hole 25, and ensure the stability of the hovering position of the preload mechanism 20.

[0055] In this technical solution, when the pre-tightening mechanism 20 is performing thread transmission, due to the idle stroke difference between the threads, the elastic force of the tension spring 29 allows the threaded rod 27 to always fit with the threaded hole 25 during thread transmission, thereby ensuring the stability of the thread transmission and avoiding the pre-tightening mechanism 20 from loosening due to external vibrations.

[0056] Example 2:

[0057] As shown in FIG1 , specifically, the first fixing assembly 30 includes:

[0058] The movable snap ring 31 is semicircular in shape. The right end of the movable snap ring 31 is fixedly connected to the left end of the translation plate 23, and a first annular groove 32 is fixedly provided at the inner ring end surface of the movable snap ring 31. The first annular groove 32 is also arc-shaped and is used to contact the mold support pipe rack to assist the pre-tightening mechanism 20 in fixing the entire device.

[0059] In this technical solution, the first annular groove 32 can fit tightly against the outer ring wall of the steel pipe, so that the first fixing component 30 can clamp the device under the drive of the pre-tightening mechanism 20, so that it can be safely and firmly fixed on the detection end of the steel pipe.

[0060] Example 3:

[0061] As shown in FIG2 , specifically, the auxiliary fixing assembly 40 includes:

[0062] The square card slot 41 has a threaded hole at its lower end, which is opened at the upper end surface of the mounting plate 10 in the vertical direction. A buckle block 42 is embedded in the square card slot 41. The buckle block 42 is fixed to the mounting plate 10 by a fixing bolt 45, and a second snap ring 43 is fixed to the left end of the buckle block 42. A second annular card slot 44 is fixed at the inner ring end surface of the second snap ring 43. The second annular card slot 44 is also arc-shaped and is used to contact the other end of the formwork pipe rack, and together with the first fixing component 30, the entire device is fixed.

[0063] In the present technical solution, when the diameter of the pipe changes, the formation of the pre-tightening mechanism 20 cannot ensure that the first fixing component 30 and the auxiliary fixing component 40 can achieve the clamping of the entire device. At this time, by adjusting the connection position of the auxiliary fixing component 40, it is ensured that the distance between the second annular groove 44 and the first annular groove 32 can clamp the steel pipe.

[0064] Example 4:

[0065] As shown in Figures 2 and 3, specifically,

[0066] The monitoring component 50 includes: two fixed bars 51, which are fixedly arranged at the right end surface of the mounting plate 10 respectively. A slot 52 is opened on the fixed bar 51, and an insert block 53 is embedded in the slot 52. The right end of the insert block 53 is fixedly connected to the radio frequency lamp 54, and the other insert block 53 is fixedly connected to the dark plate 55. The dark plate 55 is evenly provided with photosensitive sensors 56. The photosensitive sensors 56 can perform real-time detection of the angle of the high formwork between themselves and the radio frequency lamp 54.

[0067] In this technical solution, when the pre-tightening mechanism 20 is driven to rotate so that the first fixing component 30 and the auxiliary fixing component 40 complete the clamping of the steel pipe, the radio frequency lamp 54 and the photosensitive sensor 56 are inserted into the slot 52 and their positions are adjusted so that the light source emitted by the radio frequency lamp 54 shines on the middle of the photosensitive sensor 56. At this time, the correction of the initial position of the monitoring component 50 is completed.

[0068] The high formwork safety monitoring system 60 is fixedly connected to the mounting plate 10, and the high formwork safety monitoring system 60 can measure and identify the landing point of the light source signal on the photosensor 56, thereby issuing an early warning of the angular deviation of the high formwork.

[0069] In this technical solution, after the monitoring assembly 50 completes the preliminary calibration, the two ends of the two monitoring assemblies 50 are respectively fixed on the supporting pipe rack of the high-support ridge formwork. When the ridge formwork collapses due to the solidification of the concrete at the upper end and the quality factors cause the support of the bracket to undergo rigid deformation, or when the bracket is bent due to excessive stress, the original position between the two monitoring assemblies 50 is destroyed, thereby causing the light source irradiation point emitted by the radio frequency lamp 54 to change on the photosensor 56; the high-support formwork safety monitoring system 60 compares the change in the light source irradiation point at the monitoring assembly 50 with the established preset value, thereby realizing early warning of the angle change. The high-support formwork safety monitoring system 60 is composed of a multi-layer software and hardware application system such as sensors, data acquisition terminals, cloud servers, and monitoring centers. Based on the wireless transmission technology of the monitoring assembly 50, the collected sensor data is transmitted to the high-support formwork safety monitoring system 60 for real-time comparison and analysis, and finally the data is viewed remotely and in real time through the terminal, thereby achieving the purpose of long-distance and all-round real-time monitoring.

[0070] A monitoring method for a high formwork angle monitoring device:

[0071] Step 1: Adjust the position of the auxiliary fixing assembly 40 according to the size of the formwork support pipe rack and fix it with bolts;

[0072] Step 2: The hand shakes the handle 28 to drive the pre-tightening mechanism 20 to move through the threaded transmission. When the pre-tightening mechanism 20 moves, it drives the first fixing assembly 30 to continuously approach the other side of the formwork steel pipe, and finally fixes it with the auxiliary fixing assembly 40;

[0073] Step 3: Adjust the position of the monitoring component 50 so that it is aligned;

[0074] Step 4: The high formwork safety monitoring system 60 compares and identifies the angles of the formwork pipe racks by monitoring the changes in the points between the components 50, and then issues an early warning.

[0075] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A high formwork angle monitoring device, characterized in that: include: There are two mounting plates (10), and a pre-tightening mechanism (20) is slidably provided on the mounting plates (10) for adjusting the horizontal position to achieve the fixation of the entire device; A first fixing assembly (30) is fixedly connected to the left end of the pre-tightening mechanism (20) and is used to fit the steel pipe bracket and assist the pre-tightening mechanism (20) in achieving installation and fixation of the entire device; an auxiliary fixing assembly (40) fixedly disposed at the lower end of the mounting plate (10) and engaging with the first fixing assembly (30) in an upper and lower manner, thereby assisting the pre-tightening mechanism (20) in completing the fixing of the entire device; A monitoring assembly (50) is provided on the vertical surfaces of the two mounting plates (10) and is used for detecting and identifying the high formwork angle; A high-support formwork safety monitoring system (60) is fixedly arranged at the upper end of the mounting plate (10) and is used to process the signals collected at the monitoring component (50) and issue an early warning; The pre-tightening mechanism (20) comprises: a transverse slide groove (21) fixedly arranged on the upper end surface of the mounting plate (10); a slider (22) slidingly arranged in the transverse slide groove (21); a translation plate (23) fixedly arranged at the upper end surface of the slider (22); a threaded hole (25) fixedly opened at the left end of the translation plate (23); a protrusion (26) fixedly arranged on the mounting plate (10); a threaded rod (27) rotatably arranged on the protrusion (26); a middle part of the threaded rod (27) is threadedly connected to the threaded hole (25); a limit block (24) fixedly arranged on the mounting plate (10); the upper end of the threaded hole (25) is rotatably connected to the limit block (24) for limiting the horizontal degree of freedom of the threaded hole (25); a handle (28) fixedly arranged at the upper end of the threaded hole (25); the handle (28) is used to drive the threaded hole (25) to rotate by hand.

2. The high formwork angle monitoring device according to claim 1, characterized in that: The pre-tightening mechanism (20) further comprises: a tension spring (29) fixedly connected to the lower end surface of the translation plate (23), and the lower end of the tension spring (29) is fixedly arranged in the middle of the mounting plate (10), and is in a stretched state in the initial state, and is used to eliminate the idle travel difference generated by the rotation of the threaded rod (27) and the threaded hole (25), thereby ensuring the stability of the hovering position of the pre-tightening mechanism (20).

3. The high formwork angle monitoring device according to claim 1, characterized in that: The first fixing assembly (30) includes: a movable snap ring (31) in a semicircular arc shape, the right end of the movable snap ring (31) is fixedly connected to the left end of the translation plate (23), and a first annular groove (32) is fixedly provided at the inner ring end surface of the movable snap ring (31), the first annular groove (32) also in a circular arc shape, and is used to contact the mold support pipe rack to assist the pre-tightening mechanism (20) in achieving the fixation of the entire device.

4. The high formwork angle monitoring device according to claim 3, characterized in that: The auxiliary fixing assembly (40) comprises: a square card slot (41), a threaded hole is provided at the lower end thereof, and is opened on the upper end surface of the mounting plate (10) in the vertical direction; a buckle block (42) is embedded in the square card slot (41); the buckle block (42) is fixed to the mounting plate (10) by a fixing bolt (45); and a second snap ring (43) is fixed at the left end of the buckle block (42); a second annular card slot (44) is fixed at the inner ring end surface of the second snap ring (43); the second annular card slot (44) is also in an arc shape, and is used for contacting the other end of the formwork pipe rack, and together with the first fixing assembly (30) realizes the fixation of the entire device.

5. The high formwork angle monitoring device according to claim 1, characterized in that: The monitoring assembly (50) comprises: two fixed bars (51) fixedly arranged at the right end surface of the mounting plate (10), the fixed bars (51) being provided with a slot (52), the slot (52) being embedded with an insert block (53), the right end of the insert block (53) being fixedly connected to a radio frequency lamp (54), and the other insert block (53) being fixedly connected to a dark plate (55), the dark plate (55) being evenly provided with light sensors (56), and the light sensors (56) being capable of performing real-time detection of the angle of the high formwork between the light sensors (56) and the radio frequency lamp (54).

6. The high formwork angle monitoring device according to claim 5, characterized in that: The high formwork safety monitoring system (60) is fixedly connected to the mounting plate (10), and the high formwork safety monitoring system (60) is capable of measuring and identifying the landing point of the light source signal on the photosensor (56), thereby providing an early warning of the angular deviation of the high formwork.

7. A monitoring method for the high formwork angle monitoring device according to any one of claims 1 to 6, characterized in that: Step 1: Adjust the position of the auxiliary fixing assembly (40) according to the size of the mold support pipe rack and fix it with bolts; Step 2: The hand shakes the handle (28) to drive the pre-tightening mechanism (20) to move through the threaded transmission. When the pre-tightening mechanism (20) moves, it drives the first fixing component (30) to continuously approach the other side of the supporting steel pipe, and finally achieves its fixation with the auxiliary fixing component (40); Step 3: Adjust the position of the monitoring component (50) so that it is aligned; Step 4: The high formwork safety monitoring system (60) compares and identifies the angles of the formwork pipe racks by monitoring the changes in the points between the components (50), and then issues an early warning.

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