A method for fixing embedded bolts of precast stairs

Abstract

The present invention relates to the technical field of building construction, and particularly to a method for fixing embedded bolts of precast stairs, which includes step S1 of fixing a precast stair module to a support device; step S2 of adjusting the attitude of the precast stair module and controlling the support device to rise to a preset installation height; step S3 of controlling the hydraulic support plate to extend and driving the precast stair module to horizontally move towards the direction of the embedded bolt; step S4 of repeating steps S1 to S3 to form a precast stair; and step S5 of pouring concrete into the precast stair, and after the concrete solidifies, removing the support lifting truss to complete the installation. The present invention accurately controls the positioning of the precast stair and the embedded bolt through the support device, avoids improper installation caused by swaying, and screens out unqualified precast stair modules by real-time detecting the matching process between the precast stair module and the embedded bolt, ensuring the effective installation of the precast stair and improving the installation efficiency of the precast stair.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a method for fixing embedded bolts of precast stairs. Background Art

[0002] Precast stairs are fabricated in a factory under standardized conditions and then transported to the construction site for hoisting and installation. As a type of precast component, they are an important part of prefabricated buildings, offering advantages such as a safe working environment, guaranteed quality of building components, standardization of precast part dimensions and characteristics that can significantly accelerate the installation speed and construction progress, low cost, a significant reduction in on-site operations at construction sites using precast parts, and a significant reduction in dust and noise pollution. Moreover, as the country requires construction projects to meet the assembly rate requirements, precast stairs are increasingly being widely used in engineering projects. Currently, the reserved holes in the precast stairs actually produced by factories often deviate, resulting in difficulties in adjusting bolts during the subsequent installation of precast stairs, affecting the installation efficiency. And when the deviation is large, in order to ensure the normal installation of precast stairs on-site, it is common to cut off the reserved bolts, thus affecting the structural safety.

[0003] Chinese Patent Publication No.: CN115519657A. It discloses a fixing and positioning device and construction method for embedded bolts of precast stairs. The technical point is to quickly and accurately locate the position of the embedded bolts according to the actual position of the reserved holes on the precast stairs. It can be seen that in the prior art, the positioning process of precast stairs and precast bolts is unstable, and the matching effect after positioning is poor. There is a lack of real-time detection during the construction process, and unqualified precast stairs cannot be screened out in a timely manner, thus unable to ensure effective installation and affecting the structural safety. Summary of the Invention

[0004] Therefore, the present invention provides a method for fixing embedded bolts of precast stairs to overcome the problem in the prior art that during the construction process of precast stairs and precast bolts, due to the easy swaying of precast stairs, the matching effect after positioning is poor, thus unable to ensure effective installation.

[0005] To achieve the above object, the present invention provides a method for fixing embedded bolts of precast stairs, including:

[0006] Step S1, obtaining the preset installation position of the precast stair module, controlling the hoisting device to lift a precast stair module to the preset installation position, moving the support device under the precast stair, and controlling the hoisting device to lower the precast stair module onto the support plate of the support device, and fixing the precast stair through the buckle provided on the support plate;

[0007] Step S2, according to the preset inclination angle range, control the support rod to extend or retract to adjust the real-time inclination angle of the precast staircase module within the preset inclination angle range, control the support lifting truss to rise to the preset installation height, and control the rollers to turn on the brakes;

[0008] Step S3, calculate the real-time area ratio according to the area of the embedded bolts in the reserved holes, control the hydraulic support plate to extend, drive the precast staircase module to horizontally move towards the direction of the embedded bolts to the standard reserved displacement, detect the horizontal friction resistance of the rollers in real time, and determine whether to control the hydraulic support plate to stop extending according to the standard fixed pressure;

[0009] Step S4, repeat the operations of Step S1 to Step S3 to complete the installation of all precast staircase modules and form a precast staircase;

[0010] Step S5, pour concrete into the precast staircase. After the concrete solidifies, remove the support lifting truss to complete the fixed installation of the precast staircase.

[0011] Further, the support device includes:

[0012] A support lifting truss for driving the fixing mechanism to rise or fall, with a pressure sensor arranged on its lower side, the pressure sensor is used to detect the horizontal friction resistance of the rollers, and the support lifting truss is also provided with a camera device for collecting images of the precast staircase module, images of the reserved holes of the precast staircase module, and the real-time vertical projection of the precast staircase module on the support plate;

[0013] A fixing mechanism, which is arranged on the upper part of the support lifting truss, includes a hydraulic support plate connected to a support plate provided with a number of locking hooks and clamping members through a number of support rods. The hydraulic support plate is used to drive the support plate to horizontally move towards the direction of the embedded bolts. The support rods drive the support plate to rise or fall by extending or retracting. An inclination angle detector is arranged on the support plate to detect the real-time inclination angle of the precast staircase module;

[0014] A moving mechanism, which is arranged on the lower part of the support lifting truss, includes a number of rollers with brakes;

[0015] A controller, which is connected to the support lifting truss, the fixing mechanism and the moving mechanism, and is used to control the operating states of each component.

[0016] Further, in Step S2, a preset inclination angle range is set in the controller. The controller can obtain the real-time inclination angle of the precast staircase module detected by the inclination angle detector and determine the real-time inclination angle according to the preset inclination angle range.

[0017] If the real-time tilt angle is lower than the preset tilt angle range, the controller will control the support rod to retract to adjust the real-time tilt angle within the preset tilt angle range;

[0018] If the real-time tilt angle is within the preset tilt angle range, the controller will obtain the preset installation height of the precast staircase module;

[0019] If the real-time tilt angle is higher than the preset tilt angle range, the controller will control the support rod to extend to adjust the real-time tilt angle within the preset tilt angle range.

[0020] Further, when the controller determines that the real-time tilt angle of the precast staircase module is within the preset tilt angle range, it obtains the preset installation height of the precast staircase module, controls the support lifting truss to rise to the preset installation height, and controls the rollers to activate the brakes.

[0021] Further, in the step S3, an image of the reserved hole of the precast staircase module is collected by a camera device, and the collected image is transmitted to the controller. The controller is provided with a first standard area ratio and a second standard area ratio. When the precast staircase module is at the preset installation height, the controller obtains the area of the embedded bolt in the reserved hole of the precast staircase module and calculates the real-time area ratio. The controller determines the real-time area ratio according to the first standard area ratio and the second standard area ratio.

[0022] If the real-time area ratio is less than the first standard area ratio, the controller will control the hoisting device to perform step S4 on another precast staircase module;

[0023] If the real-time area ratio is between the first standard area ratio and the second standard area ratio, the controller controls the hydraulic support plate to extend and makes a real-time determination of the real-time fixing pressure of the precast staircase according to the standard fixing pressure range;

[0024] If the real-time area ratio is greater than the second standard area ratio, the controller controls the hydraulic support plate to extend;

[0025] Wherein, the real-time area ratio is the ratio of the area of the embedded bolt in the reserved hole of the precast staircase module detected by the camera device to the area of the reserved hole of the precast staircase module.

[0026] Further, in the step S3, a standard fixed pressure range of the embedded bolts of the precast staircase is set in the controller. When the controller determines that the real-time area ratio is between the first standard area ratio and the second standard area ratio, it controls the hydraulic support plate to extend, driving the precast staircase module to horizontally move towards the direction of the embedded bolts to the standard reserved displacement. The horizontal friction resistance of the roller detected by the pressure sensor is obtained in real time, and the horizontal friction resistance of the roller is determined according to the standard fixed pressure range.

[0027] If the horizontal friction resistance is less than the standard fixed pressure range, the controller will continue to control the hydraulic support plate to extend, driving the precast staircase module to horizontally move towards the direction of the embedded bolts to the standard reserved displacement.

[0028] If the horizontal friction resistance is greater than the standard fixed pressure, the controller will determine the horizontal friction resistance according to the maximum fixed pressure.

[0029] Further, in the step S3, the maximum fixed pressure when the precast staircase matches the embedded bolts is set in the controller. When the controller determines that the horizontal friction resistance is greater than the standard fixed pressure, a real-time image of the precast staircase module is obtained and compared.

[0030] If the precast staircase module is deformed and cracked in the real-time image, control the hydraulic support plate to stop extending.

[0031] If the precast staircase module is not deformed and cracked in the real-time image, control the hydraulic support plate to continue extending, and control the hydraulic support plate to stop extending when the horizontal friction resistance is greater than the maximum fixed pressure.

[0032] Further, when the controller determines that the real-time area ratio is less than the standard area ratio, the precast staircase module is removed, and another precast staircase module is controlled to repeat steps S1 to S3, and the real-time area ratio of another precast staircase module is determined according to the standard area ratio.

[0033] If the real-time area ratio of another precast staircase module is less than the standard area ratio, a signal prompt is transmitted to the external management terminal through the wireless communication device.

[0034] If the real-time area ratio of another precast staircase module is greater than the standard area ratio, it is determined that the reserved hole of the previous precast staircase module is invalid.

[0035] Further, in the step S1, when controlling the hoisting device to hoist the precast staircase module, the preset installation position of the precast staircase module is obtained, and the precast staircase module is hoisted to the preset installation position through the hoisting device.

[0036] Among them, the preset installation position includes the standard horizontal distance of the precast staircase module from the wall surface, the preset installation height from the floor surface, and the vertical distance from the support device when the reserved hole of the precast staircase module and the matching embedded bolt are on the same horizontal plane.

[0037] Further, when the precast staircase module is lifted to the preset installation position, the support device is moved to below the precast staircase module by controlling the moving mechanism of the support device, and the real-time vertical projection of the precast staircase module is detected by the camera device in the support device.

[0038] If the real-time vertical projection is within the plane of the support plate, the hoisting device lowers the precast staircase module onto the support plate, and the precast staircase is fixed by the locking buckle and the clamping member arranged on the support plate;

[0039] If the real-time vertical projection is not within the plane of the support plate, the hoisting device moves the precast staircase module until the real-time vertical projection is within the plane of the support plate.

[0040] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a hoisting device to lift the precast staircase module to the preset installation height, lowering the precast staircase module onto the support plate of the support device by the hoisting device, and fixing the precast staircase by the locking buckle arranged on the support plate, accurately controlling the positioning of the precast staircase and the embedded bolt through the support device, avoiding improper installation caused by swaying, adjusting the real-time inclination angle of the precast staircase module to within the preset inclination angle range by controlling the extension or contraction of the support rod, and controlling the support lifting truss to rise to the preset installation height to correct the installation attitude of the precast staircase module; calculating the real-time area ratio by obtaining the area of the precast bolt in the reserved hole to determine the matching degree between the precast staircase module and the embedded bolt; setting a pressure sensor to detect the horizontal friction resistance of the roller in real time, thereby determining whether to control the hydraulic support plate to stop extending according to the real-time force during the matching process between the precast staircase module and the embedded bolt, detecting the matching process between the precast staircase module and the embedded bolt in real time, screening out unqualified precast staircase modules, ensuring the effectiveness of precast staircase installation and improving the installation efficiency of precast staircases.

[0041] Furthermore, by setting up a fixing mechanism, the precast staircase is fixed on the support plate to prevent improper installation caused by the swing of the precast staircase module during the positioning process of the precast staircase module and the embedded bolts. By setting up a support rod, it is used to drive the support plate to rotate clockwise or counterclockwise to adjust the real-time inclination angle of the precast staircase module, accurately adjust the inclination of the precast staircase module. By setting up a hydraulic strut, it is used to drive the support plate to move horizontally to complete the position matching between the precast staircase module and the precast bolt, effectively ensuring the fixation of the precast staircase module and the precast bolt.

[0042] In particular, the preset inclination angle range represents the optimal inclination range of the precast staircase under this construction operation, which is set according to the floor height and the diagonal length of the staircase to ensure compliance with safety and building codes. By setting up the preset inclination angle range, the controller is used to control the extension or retraction of the support rod to correct the inclination of the precast staircase module and ensure the effective installation of the precast staircase module.

[0043] Furthermore, by setting up a support lifting truss, it is used to drive the precast staircase module to rise to the preset installation height by controlling the rise of the support lifting truss, stably adjust the spatial position of the precast staircase module, and ensure that the precast staircase module matches the embedded bolts in the corrected preset posture. By controlling the roller to turn on the brake, it is used to fix the support lifting truss to stop moving, thereby ensuring the stability during the matching operation between the precast staircase and the embedded bolts and avoiding poor matching operation effects caused by the shaking of the precast staircase itself.

[0044] In particular, by setting up a camera device, it is used to detect the area of the embedded bolt in the reserved hole of the precast staircase module. By calculating the real-time area ratio, it is used to determine the matching degree between the precast staircase module and the precast bolt. If the real-time area ratio is less than the first standard area ratio, the controller determines that the matching degree between the precast staircase module and the precast bolt cannot complete the fixing operation under this condition, and the staff needs to conduct on-site inspection to determine the quality problems of the precast bolt and this precast staircase module. If the real-time area ratio is between the first standard area ratio and the second standard area ratio, the controller will make a real-time determination of the real-time fixing pressure to determine whether the matching degree between the precast staircase module and the precast bolt can complete the fixing operation under this condition. If the real-time area ratio is greater than the second standard area ratio, it means that the matching degree between the precast staircase module and the precast bolt can complete the fixing operation.

[0045] Furthermore, the standard fixing pressure range represents the resistance range that can complete the matching operation during the matching process between the precast staircase module and the embedded bolt, and is also related to the relative friction between the precast staircase module and the embedded bolt.

[0046] By setting a standard fixed pressure range in the controller to determine the horizontal frictional resistance for the controller, where the horizontal frictional resistance is the frictional force received by the roller, which is positively correlated with the resistance received during the matching process between the precast staircase module and the embedded bolts. If the controller determines that the horizontal frictional resistance is less than the standard fixed pressure range, it continues to control the hydraulic support plate to extend, driving the precast staircase module to horizontally move in the direction of the embedded bolts to the standard reserved displacement, thereby continuing the matching operation. If the controller determines that the horizontal frictional resistance is greater than the standard fixed pressure, it will determine whether the horizontal frictional resistance exceeds the maximum fixed pressure.

[0047] In particular, by obtaining a real-time image of the precast staircase module to determine whether the precast staircase module is damaged. If there is no deformation or damage, by setting a maximum fixed pressure, the controller compares the horizontal frictional resistance with the maximum fixed pressure to determine whether the horizontal frictional resistance exceeds the maximum fixed pressure. When the horizontal frictional resistance is greater than the maximum fixed pressure, it indicates that there is an obstruction during the matching of the precast staircase module and the embedded bolts, and this obstruction is related to the depth of the reserved hole.

[0048] Further, when the controller determines that the real-time area ratio is less than the standard area ratio, steps S1 to S3 are repeated for another precast staircase module. If the controller determines that the real-time area ratio of another precast staircase module is less than the standard area ratio, it is determined that the real-time area ratio is less than the standard area ratio due to the deviation of the position of the embedded bolts. If the controller determines that the real-time area ratio of another precast staircase module is greater than the standard area ratio, it is determined that the reserved hole of the previous precast staircase module is invalid, resulting in the real-time area ratio being less than the standard area ratio. The previous precast staircase module needs to be removed from the site to screen out unqualified precast staircase modules and avoid ineffective installation.

[0049] In particular, the preset installation position refers to the spatial position of the precast staircase module when the reserved hole of the precast staircase module can match the fixed position of the embedded bolts based on the fixed position of the embedded bolts. The preset installation position is also related to the actual construction conditions and is set according to the actual building safety and building codes.

[0050] Further, by setting a camera device, the hoisting module is controlled to adjust the spatial position of the precast staircase module to correspond to the support plate of the support device through the obtained real-time vertical projection, ensuring the effective development of the fixed operation of the precast bolts of the precast staircase through the support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a schematic flow chart of the method for fixing the embedded bolts of the precast staircase in the embodiment of the present invention;

[0052] Figure 2 It is a schematic structural diagram of the support device in the embodiment of the present invention. Detailed implementation manners

[0053] In order to make the objectives and advantages of the present invention more clearly understood, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0054] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0055] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0056] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0057] Please refer to Figure 1 as shown in Figure 1 is a flowchart of the precast staircase embedded bolt fixing method according to an embodiment of the present invention. The present invention discloses a precast staircase embedded bolt fixing method, including:

[0058] Step S1: Obtain the preset installation position of the precast staircase module, control the hoisting device to hoist a precast staircase module to the preset installation position, move the support device under the precast staircase, and control the hoisting device to lower the precast staircase module onto the support plate of the support device, and fix the precast staircase through the buckle provided on the support plate;

[0059] Step S2: According to the preset inclination angle range, control the support rod to extend or contract to adjust the real-time inclination angle of the precast staircase module within the preset inclination angle range, control the support lifting truss to rise to the preset installation height, and control the roller to turn on the brake;

[0060] Step S3: Calculate the real-time area ratio based on the area of the embedded bolts in the reserved holes, control the hydraulic support plate to extend, drive the precast stair module to horizontally move towards the direction of the embedded bolts to the standard reserved displacement, detect the horizontal friction resistance of the rollers in real time, and determine whether to control the hydraulic support plate to stop extending according to the standard fixed pressure.

[0061] Step S4: Repeat the operations of Step S1 to Step S3 to complete the installation of all precast stair modules and form a precast stair.

[0062] Step S5: Pour concrete into the precast stair. After the concrete solidifies, remove the support lifting truss to complete the fixed installation of the precast stair.

[0063] In this embodiment, the precast stair modules are connected by bolts. After connection, they are grouted at the joint parts and hinged with the cast-in-place section to form an integral body, achieving reliable connection of components and meeting the safety and durability of the structure. In the precast component factory, in order to ensure the accurate positions of the embedded steel bar meshes at the bottom of the precast wall panels, the reserved lifting rings, lifting nails of the precast composite components, and the embedded lifting nuts of the precast stairs, effective positioning measures using processing templates are adopted. When fabricating the precast component templates, the bolts are connected to the inner side of the templates using positioning pin seats. After the concrete of the components reaches a certain strength, demoulding is carried out to complete the accurate positioning of the component connection. The upper ends of the inclined support rods of the precast wall panels are installed on the precast wall panels with bolts, and the lower ends are installed on the fixed connection parts of the embedded bolts on the cast-in-place floor slabs for preliminary adjustment to ensure the rough verticality of the wall panels.

[0064] After the precast stair modules in this embodiment are corrected, the stair modules are connected to the embedded bolts of the stair beam by grouting. The upper end is a fixed hinge support, and the lower end is a sliding hinge support. On the upper stair beam, M15 cement mortar is used for leveling. The embedded bolt holes are filled with C40 grade CGM grouting material and the surface is sealed with mortar to ensure smoothness, density, and flatness. On the lower part of the stair beam, a layer of felt and M15 cement mortar are used for leveling. The bolt holes are cavities, fixed with nuts and sealed with mortar to ensure smoothness, density, and flatness. Slow operation is required, and rapid and violent placement is strictly prohibited to avoid damaging the stair modules by vibration.

[0065] By setting up a hoisting device to lift the precast stair module to a preset installation height, lowering the precast stair module onto the support plate of the support device through the hoisting device, and fixing the precast stair through the locking buckle arranged on the support plate, so as to accurately control the positioning of the precast stair and the embedded bolt through the support device, avoid improper installation caused by swaying, adjust the real-time inclination angle of the precast stair module to within the preset inclination angle range by controlling the extension or contraction of the support rod, control the support lifting truss to rise to the preset installation height to correct the installation attitude of the precast stair module, calculate the real-time area ratio by obtaining the area of the precast bolt in the reserved hole to determine the matching degree between the precast stair module and the embedded bolt, set a pressure sensor to detect the horizontal friction resistance of the roller in real time, and thus determine whether to control the hydraulic support plate to stop extending according to the real-time force during the matching process between the precast stair module and the embedded bolt, detect the matching process between the precast stair module and the embedded bolt in real time, screen out the precast stair modules with unqualified quality, and ensure the effective installation of the precast stair and improve the installation efficiency of the precast stair.

[0066] Please continue to refer to Figure 2 as shown in Figure 2 FIG. is a schematic structural diagram of the support device in an embodiment of the present invention, including a support lifting truss 1, a fixing mechanism 2, a support rod 201, a locking buckle 202, a clamping member 203, a support plate 204, an inclination angle detector 205, a hydraulic support plate 206, a reserved hole 207, a camera device (not shown in the figure), a moving mechanism 3, a roller 301, a pressure sensor 302, and a controller (not shown in the figure), wherein,

[0067] Specifically, the support device includes:

[0068] The support lifting truss 1 is used to drive the fixing mechanism 2 to rise or fall. A pressure sensor 302 is arranged on its lower side, and the pressure sensor 302 is used to detect the horizontal friction resistance of the roller 301. The support lifting truss is also provided with a camera device for collecting images of the precast stair module, images of the reserved holes 207 of the precast stair module, and the real-time vertical projection of the precast stair module on the support plate;

[0069] The fixing mechanism 2 is arranged on the upper part of the support lifting truss 1 and includes a hydraulic support plate 206 connected to a support plate 204 provided with a plurality of locking buckles 202 and clamping members 203 through a plurality of support rods 201. The hydraulic support plate 206 is used to drive the support plate 204 to move horizontally towards the direction of the embedded bolt. The support rod 201 drives the support plate 204 to rise or fall by extending or retracting. An inclination angle detector 205 is arranged on the support plate 204 to detect the real-time inclination angle of the precast stair module;

[0070] The moving mechanism 3 is arranged at the lower part of the supporting lifting truss 1 and includes a number of rollers 301 with brakes;

[0071] The controller is connected to the supporting lifting truss 1, the fixing mechanism 2 and the moving mechanism 3, and is used to control the operating states of each component.

[0072] By setting the fixing mechanism 2, the precast staircase is fixed on the supporting plate 204, avoiding improper installation caused by the swing of the precast staircase module during the positioning process of the precast staircase module and the embedded bolts. By setting the support rod 201, it is used to drive the supporting plate 204 to rotate clockwise or counterclockwise so as to adjust the real-time inclination angle of the precast staircase module, accurately adjust the inclination of the precast staircase module. By setting the hydraulic strut, it is used to drive the supporting plate 204 to move horizontally to complete the position matching between the precast staircase module and the precast bolts, effectively ensuring the fixation of the precast staircase module and the precast bolts.

[0073] Specifically, in the step S2, a preset inclination angle range is set in the controller. The controller can obtain the real-time inclination angle of the precast staircase module detected by the inclination angle detector 205, and judge the real-time inclination angle according to the preset inclination angle range.

[0074] If the real-time inclination angle is lower than the preset inclination angle range, the controller will control the support rod 201 to retract to adjust the real-time inclination angle within the preset inclination angle range;

[0075] If the real-time inclination angle is within the preset inclination angle range, the controller will obtain the preset installation height of the precast staircase module;

[0076] If the real-time inclination angle is higher than the preset inclination angle range, the controller will control the support rod 201 to extend to adjust the real-time inclination angle within the preset inclination angle range.

[0077] The preset inclination angle range represents the optimal inclination angle range of the precast staircase under this construction operation, which is set according to the floor height and the diagonal length of the staircase to ensure compliance with safety and building codes; by setting the preset inclination angle range, the controller is used to control the extension or retraction of the support rod 201 to correct the inclination of the precast staircase module and ensure the effective installation of the precast staircase module.

[0078] Specifically, when the controller determines that the real-time inclination angle of the precast staircase module is within the preset inclination angle range, it obtains the preset installation height of the precast staircase module, controls the supporting lifting truss 1 to rise to the preset installation height, and controls the brakes of the rollers 301 to be turned on.

[0079] By setting up the support lifting truss 1, it is used to drive the precast stair module to rise to the preset installation height by controlling the rise of the support lifting truss 1, stably adjust the spatial position of the precast stair module, ensure that the precast stair module matches the embedded bolts in the corrected preset posture, and by controlling the brake of the roller 301 to fix the support lifting truss 1 to stop moving, so as to ensure the stability during the matching operation between the precast stair and the embedded bolts, and avoid poor matching operation effect caused by the shaking of the precast stair itself.

[0080] Specifically, in the step S3, the image of the reserved hole 207 of the precast stair module is collected by the camera device, and the collected image is transmitted to the controller. The first standard area ratio and the second standard area ratio are set in the controller. When the precast stair module is at the preset installation height, the controller obtains the area of the embedded bolt in the reserved hole 207 of the precast stair module and calculates the real-time area ratio. The controller determines the real-time area ratio according to the first standard area ratio and the second standard area ratio.

[0081] If the real-time area ratio is less than the first standard area ratio, the controller will control the hoisting device to perform step S4 on another precast stair module;

[0082] If the real-time area ratio is between the first standard area ratio and the second standard area ratio, the controller controls the hydraulic support plate 206 to extend and determines the real-time fixing pressure of the precast stair according to the standard fixing pressure range in real time;

[0083] If the real-time area ratio is greater than the second standard area ratio, the controller controls the hydraulic support plate 206 to extend;

[0084] Among them, the real-time area ratio is the ratio of the area of the embedded bolt in the reserved hole 207 of the precast stair module detected by the camera device to the area of the reserved hole 207 of the precast stair module.

[0085] By setting up a camera device to detect the area of the embedded bolt in the reserved hole 207 of the precast stair module, and calculating the real-time area ratio to determine the matching degree between the precast stair module and the precast bolt. If the real-time area ratio is less than the first standard area ratio, the controller determines that the matching degree between the precast stair module and the precast bolt under this condition cannot complete the fixing operation, and the staff needs to conduct on-site inspection to determine the quality problems of the precast bolt and the precast stair module. If the real-time area ratio is between the first standard area ratio and the second standard area ratio, the controller will make a real-time judgment on the real-time fixing pressure to determine whether the matching degree between the precast stair module and the precast bolt under this condition can complete the fixing operation. If the real-time area ratio is greater than the second standard area ratio, it means that the matching degree between the precast stair module and the precast bolt can complete the fixing operation.

[0086] Specifically, in the step S3, a standard fixing pressure range of the precast stair embedded bolt is set in the controller. When the controller determines that the real-time area ratio is between the first standard area ratio and the second standard area ratio, it controls the hydraulic support plate 206 to extend, driving the precast stair module to horizontally move towards the direction of the embedded bolt to the standard reserved displacement, and real-time obtains the horizontal frictional resistance of the roller 301 detected by the pressure sensor 302, and determines the horizontal frictional resistance of the roller 301 according to the standard fixing pressure range.

[0087] If the horizontal frictional resistance is less than the standard fixing pressure range, the controller will continue to control the hydraulic support plate 206 to extend, driving the precast stair module to horizontally move towards the direction of the embedded bolt to the standard reserved displacement;

[0088] If the horizontal frictional resistance is greater than the standard fixing pressure, the controller will determine the horizontal frictional resistance according to the maximum fixing pressure.

[0089] The standard fixing pressure range represents the resistance range that can complete the matching operation during the matching process between the precast stair module and the embedded bolt, and is also related to the relative friction between the precast stair module and the embedded bolt.

[0090] By setting a standard fixing pressure range in the controller for the controller to determine the horizontal frictional resistance, the horizontal frictional resistance is the frictional force received by the roller 301, which is positively correlated with the resistance received during the matching process between the precast stair module and the embedded bolt. If the controller determines that the horizontal frictional resistance is less than the standard fixing pressure range, it will continue to control the hydraulic support plate 206 to extend, driving the precast stair module to horizontally move towards the direction of the embedded bolt to the standard reserved displacement, so as to continue the matching operation. If the controller determines that the horizontal frictional resistance is greater than the standard fixing pressure, it will determine whether the horizontal frictional resistance exceeds the maximum fixing pressure.

[0091] Specifically, in the step S3, the maximum fixing pressure when the precast staircase and the embedded bolt match is set in the controller. When the controller determines that the horizontal frictional resistance is greater than the standard fixing pressure, the real-time image of the precast staircase module is acquired and compared.

[0092] If the precast staircase module is deformed and cracked in the real-time image, control the hydraulic support plate 206 to stop extending;

[0093] If the precast staircase module is not deformed and cracked in the real-time image, control the hydraulic support plate 206 to continue extending, and control the hydraulic support plate 206 to stop extending when the horizontal frictional resistance is greater than the maximum fixing pressure.

[0094] The maximum fixing pressure is the acting force when the maximum cross-section of the embedded bolt contacts the concrete part of the precast staircase module;

[0095] By acquiring the real-time image of the precast staircase module to determine whether the precast staircase module is damaged. If there is no deformation and damage, by setting the maximum fixing pressure, the controller compares the horizontal frictional resistance with the maximum fixing pressure to determine whether the horizontal frictional resistance exceeds the maximum fixing pressure. When the horizontal frictional resistance is greater than the maximum fixing pressure, it indicates that there is an obstruction when the precast staircase module and the embedded bolt match, and this obstruction is related to the depth of the reserved hole 207.

[0096] Specifically, when the controller determines that the real-time area ratio is less than the standard area ratio, the precast staircase module is demolished, and another precast staircase module is controlled to repeat steps S1 to S3, and the real-time area ratio of another precast staircase module is determined according to the standard area ratio;

[0097] If the real-time area ratio of another precast staircase module is less than the standard area ratio, a signal prompt is transmitted to the external management terminal through the wireless communication device;

[0098] If the real-time area ratio of another precast staircase module is greater than the standard area ratio, it is determined that the reserved hole 207 of the previous precast staircase module is invalid.

[0099] When the controller determines that the real-time area ratio is less than the standard area ratio, steps S1 to S3 are repeated for another precast stair module. If the controller determines that the real-time area ratio of the other precast stair module is less than the standard area ratio, it is determined that the real-time area ratio is less than the standard area ratio due to the deviation of the embedded bolt position. If the controller determines that the real-time area ratio of the other precast stair module is greater than the standard area ratio, it is determined that the reserved hole 207 of the previous precast stair module is invalid, resulting in the real-time area ratio being less than the standard area ratio. The previous precast stair module needs to be removed from the site, and the unqualified precast stair modules are screened out to avoid ineffective installation.

[0100] Specifically, in step S1, when controlling the hoisting device to hoist the precast stair module, the preset installation position of the precast stair module is obtained, and the precast stair module is hoisted to the preset installation position by the hoisting device.

[0101] Among them, the preset installation position includes the standard horizontal distance of the precast stair module from the wall, the preset installation height from the floor of the floor, and the vertical distance from the support device when the reserved hole 207 of the precast stair module and the matching embedded bolt are on the same horizontal plane.

[0102] The preset installation position represents the spatial position of the precast stair module when the reserved hole 207 of the precast stair module can match the fixed position of the embedded bolt based on the fixed position of the embedded bolt. The preset installation position is also related to the actual construction conditions and is set according to the actual building safety and building codes.

[0103] Specifically, when the precast stair module is hoisted to the preset installation position, the support device is moved to below the precast stair module by controlling the moving mechanism 3 of the support device, and the real-time vertical projection of the precast stair module is detected by the camera device in the support device.

[0104] If the real-time vertical projection is within the plane of the support plate 204, the hoisting device lowers the precast stair module onto the support plate 204, and the precast stair is fixed by the lock 202 and the clamping member 203 provided on the support plate 204.

[0105] If the real-time vertical projection is not within the plane of the support plate 204, the hoisting device moves the precast stair module until the real-time vertical projection is within the plane of the support plate 204.

[0106] By setting the camera device, the spatial position of the precast stair module is controlled by the obtained real-time vertical projection to adjust the precast stair module to correspond to the support plate 204 of the support device, ensuring the effective development of the precast bolt fixing operation of the precast stair through the support device.

[0107] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

[0108] The above are only the preferred embodiments of the present invention and are not used to limit the present invention; for those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for fixing embedded bolts of a precast staircase, characterized in that, including Step S1: Obtain the preset installation position of the precast staircase module, control the hoisting device to lift a precast staircase module to the preset installation position, move the support device under the precast staircase, and control the hoisting device to lower the precast staircase module onto the support plate of the support device, and fix the precast staircase through the locking buckle arranged on the support plate; Step S2: According to the preset inclination angle range, control the support rod to extend or contract to adjust the real-time inclination angle of the precast staircase module within the preset inclination angle range, control the support lifting truss to rise to the preset installation height, and control the roller to turn on the brake; Step S3: Calculate the real-time area ratio according to the area of the embedded bolts in the reserved hole, control the hydraulic support plate to extend, drive the precast staircase module to horizontally move towards the direction of the embedded bolts to the standard reserved displacement, detect the horizontal friction resistance of the roller in real time, and determine whether to control the hydraulic support plate to stop extending according to the standard fixing pressure; Step S4: Repeat the operations of Step S1 to Step S3 to complete the installation of all precast staircase modules and form a precast staircase; Step S5: Pour concrete into the precast staircase. After the concrete solidifies, remove the support lifting truss to complete the fixed installation of the precast staircase; The support device includes A support lifting truss for driving the fixing mechanism to rise or fall, with a pressure sensor arranged on its lower side, the pressure sensor is used to detect the horizontal friction resistance of the roller, and the support lifting truss is also provided with a camera device for collecting images of the precast staircase module, images of the reserved holes of the precast staircase module, and the real-time vertical projection of the precast staircase module on the support plate; A fixing mechanism arranged on the upper part of the support lifting truss, including a hydraulic support plate connected to a support plate provided with a plurality of locking buckles and clamping members through a plurality of support rods, the hydraulic support plate is used to drive the support plate to horizontally move towards the direction of the embedded bolts, the support rod drives the support plate to rise or fall by extending or retracting, and an inclination angle detector is arranged on the support plate to detect the real-time inclination angle of the precast staircase module; A moving mechanism arranged on the lower part of the support lifting truss, including a plurality of rollers with brakes; A controller connected to the support lifting truss, the fixing mechanism, and the moving mechanism for controlling the operating states of each component.

2. The method for fixing embedded bolts of a precast staircase according to claim 1, characterized in that, In Step S2, a preset inclination angle range is set in the controller. The controller can obtain the real-time inclination angle of the precast staircase module detected by the inclination angle detector and determine the real-time inclination angle according to the preset inclination angle range. If the real-time inclination angle is lower than the preset inclination angle range, the controller will control the support rod to retract to adjust the real-time inclination angle within the preset inclination angle range; If the real-time inclination angle is within the preset inclination angle range, the controller will obtain the preset installation height of the precast staircase module; If the real-time inclination angle is higher than the preset inclination angle range, the controller will control the support rod to extend to adjust the real-time inclination angle within the preset inclination angle range.

3. The method for fixing embedded bolts of a precast staircase according to claim 2, characterized in that, When the controller determines that the real-time inclination angle of the precast stair module is within the preset inclination angle range, obtain the preset installation height of the precast stair module, control the support lifting truss to rise to the preset installation height, and control the rollers to turn on the brakes.

4. The method for fixing embedded bolts of a precast staircase according to claim 3, characterized in that, In step S3, the image of the reserved hole of the precast stair module is collected by the camera device, and the collected image is transmitted to the controller. The first standard area ratio and the second standard area ratio are set in the controller. When the precast stair module is at the preset installation height, the controller obtains the area of the embedded bolt in the reserved hole of the precast stair module and calculates the real-time area ratio. The controller determines the real-time area ratio according to the first standard area ratio and the second standard area ratio; If the real-time area ratio is less than the first standard area ratio, the controller will control the hoisting device to perform step S4 on another precast stair module; If the real-time area ratio is between the first standard area ratio and the second standard area ratio, the controller controls the hydraulic support plate to extend, and determines the real-time fixing pressure of the precast stair according to the standard fixing pressure range in real time; If the real-time area ratio is greater than the second standard area ratio, the controller controls the hydraulic support plate to extend; Among them, the real-time area ratio is the ratio of the area of the embedded bolt in the reserved hole of the precast stair module detected by the camera device to the area of the reserved hole of the precast stair module.

5. The method for fixing embedded bolts of a precast staircase according to claim 4, characterized in that, In step S3, the standard fixing pressure range of the precast stair embedded bolt is set in the controller. When the controller determines that the real-time area ratio is between the first standard area ratio and the second standard area ratio, it controls the hydraulic support plate to extend, drives the precast stair module to move horizontally towards the direction of the embedded bolt to the standard reserved displacement, and obtains the horizontal frictional resistance of the roller detected by the pressure sensor in real time, and determines the horizontal frictional resistance of the roller according to the standard fixing pressure range. If the horizontal frictional resistance is less than the standard fixing pressure range, the controller will continue to control the hydraulic support plate to extend, driving the precast stair module to move horizontally towards the direction of the embedded bolt to the standard reserved displacement; If the horizontal frictional resistance is greater than the standard fixing pressure, the controller will determine the horizontal frictional resistance according to the maximum fixing pressure.

6. The method for fixing embedded bolts of a precast staircase according to claim 5, characterized in that, In step S3, the maximum fixing pressure when the precast stair and the embedded bolt are matched is set in the controller. When the controller determines that the horizontal frictional resistance is greater than the standard fixing pressure, it obtains the real-time image of the precast stair module and makes a comparison. If the precast stair module is deformed and cracked in the real-time image, control the hydraulic support plate to stop extending; If the precast stair module does not deform and crack in the real-time image, control the hydraulic support plate to continue to extend, and control the hydraulic support plate to stop extending when the horizontal frictional resistance is greater than the maximum fixing pressure.

7. The method for fixing embedded bolts of a precast staircase according to claim 4, characterized in that, When the controller determines that the real-time area ratio is less than the standard area ratio, the precast stair module is demolished, and another precast stair module is controlled to repeat steps S1 to S3, and the real-time area ratio of another precast stair module is determined according to the standard area ratio; If the real-time area ratio of another precast stair module is less than the standard area ratio, a signal prompt is transmitted to the external management terminal through the wireless communication device; If the real-time area ratio of another precast stair module is greater than the standard area ratio, it is determined that the reserved hole of the previous precast stair module is invalid.

8. The precast staircase embedded bolt fixing method according to claim 1, characterized in that, In the step S1, when controlling the hoisting device to hoist the precast stair module, the preset installation position of the precast stair module is obtained, and the precast stair module is hoisted to the preset installation position through the hoisting device; Among them, the preset installation position includes the standard horizontal distance of the precast stair module from the wall, the preset installation height from the floor of the floor, and the vertical distance from the support device when the reserved hole of the precast stair module and the matching embedded bolt are on the same horizontal plane.

9. The precast staircase embedded bolt fixing method according to claim 8, characterized in that, When the precast stair module is hoisted to the preset installation position, the support device is moved to the lower part of the precast stair module by controlling the moving mechanism of the support device, and the real-time vertical projection of the precast stair module is detected by the camera device in the support device; If the real-time vertical projection is within the plane of the support plate, the hoisting device lowers the precast stair module onto the support plate, and the precast stair is fixed by the lock and the clamping member provided on the support plate; If the real-time vertical projection is not within the plane of the support plate, the hoisting device moves the precast stair module until the real-time vertical projection is within the plane of the support plate.

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