Intelligent concrete test piece size measuring device

Abstract

The invention relates to the technical field of vision measurement, in particular to an intelligent concrete test piece size measuring device which comprises a shell, a focusing mechanism is mounted on one side in the shell, the shell is adjustably connected with a scanner through the focusing mechanism, a rotating table is mounted on the other side in the shell, and the rotating table is adjustably connected with the scanner through the focusing mechanism. According to the device, the position of a test piece can be corrected before measurement, the test piece can be dynamically limited in the detection process, the measurement deviation is effectively reduced, the test piece can be pre-measured, mechanical measurement and visual measurement are effectively combined, and the measurement accuracy is improved. The double detection of the test piece is realized, the effectiveness of the alignment and focusing work of the scanner is ensured, the measurement precision is greatly improved, the synchronous detection of multiple groups of concrete test pieces can be realized from two levels of machinery and vision, and the measurement precision is ensured while the measurement efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of visual measurement technology, specifically to an intelligent device for measuring the dimensions of concrete specimens. Background Technology

[0002] Concrete specimen size measuring devices are of great significance for ensuring the accuracy of concrete specimen dimensions and engineering quality, and are closely related to the safety of the project. They are indispensable tools in construction engineering. Chinese patent discloses a rapid measuring device for concrete compressive strength test blocks, application number: 202121195655.0. This device combines a 3D high-precision binocular scanner with 3D model processing software to achieve the purpose of rapid measurement of concrete test blocks.

[0003] However, current dimensional measuring devices cannot effectively correct and limit the position of concrete specimens when visually inspecting them. It is difficult to achieve effective alignment and focusing of the scanner. Simple visual measurement cannot effectively measure the validity and reliability of the measurement data, nor can it achieve simultaneous measurement of the side length, angle and flatness of multiple sets of concrete specimens, resulting in insufficient measurement efficiency and poor detection accuracy. Summary of the Invention

[0004] This invention provides an intelligent concrete specimen size measurement device, which can effectively solve the problems mentioned in the background art. Current size measurement devices cannot effectively correct and limit the position of concrete specimens when visually inspecting them, making it difficult to achieve effective alignment and focusing of the scanner. Simple visual measurement cannot effectively measure the validity and reliability of the measurement data, nor can it achieve simultaneous measurement of the side length, angle and flatness of multiple sets of concrete specimens, resulting in insufficient measurement efficiency and poor detection accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent concrete specimen size measuring device, comprising a housing, a focusing mechanism installed on one side inside the housing, and a scanner tunably connected to the housing via the focusing mechanism; a rotating platform installed on the other side inside the housing; a rotating disk rotatably mounted on the top of the rotating platform; and an auxiliary pressure prediction mechanism installed on the top of the rotating disk.

[0006] The auxiliary pressure prediction mechanism includes a workbench;

[0007] A worktable is embedded at the top of the rotating disk. Several longitudinal cavities are formed at equal angles along the circumference inside the worktable. A transverse cavity is formed at the top of the longitudinal cavities inside the worktable. A pusher is installed in the middle of the side end face of both the longitudinal and transverse cavities. A plug is slidably installed inside the pusher. A push rod is installed in the middle of the side end face of the plug. A piston is slidably installed inside both the longitudinal and transverse cavities. Several double-cavity boxes are formed at equal angles along the circumference at the top of the worktable. Side boxes are installed on both sides of the double-cavity boxes at the edge of the top of the worktable.

[0008] A bent pipe is symmetrically installed at the bottom corner of the double-chamber box, a conduit is installed at the bottom edge of the side box, and symmetrical chambers are opened inside the double-chamber box. Guide plates are slidably installed inside the chambers and the side box. A support rod is installed in the middle of the side end face of the guide plate, a clamping plate is installed at the end of the support rod, and a pressure sensor is installed in the middle of the side end face of the clamping plate.

[0009] A connecting rod is installed in the middle of the piston side end face, and a plug plate is installed at the end of the connecting rod. An isolation cylinder is installed in the longitudinal cavity and the transverse cavity at the position corresponding to the plug plate. A pressure sensor is installed at the end of the isolation cylinder, and a guide seat is installed at the end of the push cylinder. Several air pipes are installed at equal angles along the circumferential direction at the bottom of the guide seat.

[0010] Preferably, a core disk is embedded and installed at the top of the worktable corresponding to the position of the transverse cavity, and a glass is installed at the top of the worktable at the top of the core disk. Several ball bearings are embedded and rolled at equal angles along the circumference at the outer position of the glass on the top of the worktable. The scanner, pressure sensor and air pressure sensor are all connected to an external detection terminal.

[0011] Preferably, the dual-cavity box consists of a longitudinal cavity box and a transverse cavity box. The longitudinal cavity is connected to the internal chamber of the longitudinal cavity box through a bent pipe, and the longitudinal cavity corresponds one-to-one with the internal chamber of the longitudinal cavity box. The transverse cavity is connected to the internal chamber of the transverse cavity box through a bent pipe, and the transverse cavity corresponds one-to-one with the internal chamber of the transverse cavity box.

[0012] Preferably, the side box is composed of a vertical box and a horizontal box. The vertical cavity is connected to the vertical box through a conduit, and the vertical cavity corresponds to the vertical box one by one. The horizontal cavity is connected to the horizontal box through a conduit, and the horizontal cavity corresponds to the horizontal box one by one.

[0013] Preferably, the plug is connected to the piston via a push rod, the piston is connected to the plug plate via a connecting rod, and the interior of the isolation cylinder is filled with air at the position between the plug plate and the pressure sensor.

[0014] Preferably, the piston area is five times the area of ​​the plug, the maximum sliding distance of the piston is one-fifth of the maximum sliding distance of the plug, and the longitudinal and transverse cavities are filled with hydraulic fluid at the position between the piston and the isolation cylinder.

[0015] Preferably, a steering waste collection mechanism is installed on the outside of the auxiliary pressure prediction mechanism, and the steering waste collection mechanism includes a protective sleeve;

[0016] A protective cylinder is installed at the bottom edge of the rotary table, a material box is installed at the bottom of the protective cylinder, a rotating cylinder is installed at the top center of the material box inside the protective cylinder, a hollow shaft is installed at the bottom center of the rotary table, a turbine is installed at the bottom end of the hollow shaft inside the rotating cylinder, an air pump is installed at the center of the side end face of the material box, a conveying pipe is embedded at the bottom of the outer curved surface of the rotating cylinder, an octagonal box is embedded at the top center of the worktable, a central cylinder is installed at the top center of the octagonal box, and a connecting seat is installed at the bottom of the central cylinder.

[0017] An inner tube is installed at the bottom center of the connecting seat. A vertical plug is slidably installed inside the central cylinder. Several through holes are opened at equal angles along the circumference at the position of the vertical plug on the outer curved surface of the central cylinder. An air valve is embedded in the center of the top of the central cylinder. A corner box is embedded in the corner of the top of the workbench. An air box is installed at the center of the side end face of the workbench at the position of the double-chamber box. Through tubes are installed at the top of the side end face of the octagonal box at the positions of the corner box and the air box.

[0018] Filter plates are embedded in the end face of the corner box, the two inclined surfaces of the air box, and the top of the inclined surface of the octagonal box. A drawer is slidably embedded in the side end face of the material box. A filter box is slidably embedded in the other end face of the material box at the end of the drawer. A side groove is opened inside the workbench at the outer position of the longitudinal cavity and the transverse cavity. A mesh plate is embedded in the top of the side groove. A hopper is installed at the bottom of the side groove. A cover plate is installed on the top edge of the rotary drum.

[0019] Preferably, the air pump inlet is connected to the inner cavity of the material box through the filter box, the air pump outlet is connected to the bottom of the inner cavity of the rotating drum through the delivery pipe, the filter box is filled with activated carbon and filter sponge, and the air pump input is electrically connected to the external power supply output.

[0020] Preferably, the inner tube is located inside the hollow shaft, and its end is connected to the inner cavity of the rotating drum. Both the inner tube and the air pipe are connected to the inner cavity of the central cylinder via a connecting seat.

[0021] Preferably, the thickness of the vertical plug is greater than the inner diameter of the through hole, the interior of the central cylinder is filled with air at the top of the vertical plug, and both the corner box and the air box are connected to the inner cavity of the octagonal box through a through pipe, and the inner cavity of the octagonal box is connected to the through hole.

[0022] Compared with the prior art, the advantages of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use;

[0023] 1. Equipped with an auxiliary pressure prediction mechanism, this device utilizes a worktable, double-chamber box, side box, chamber, guide plate, support rod, clamping plate, and pressure sensor to construct a synchronous limiting structure. This enables synchronous limiting of the concrete specimen, effectively improving its stability. Combined with the gas-liquid pressure conversion function of the longitudinal cavity, transverse cavity, push cylinder, plug, push rod, and piston, along with the equivalent detection function of the connecting rod, plug plate, isolation cylinder, and pressure sensor, it can correct the position of the concrete specimen before measurement, significantly improving the reliability and effectiveness of the specimen position correction. This makes specimen placement and scanner focusing easier, effectively reducing measurement errors caused by positional deviations and significantly improving detection accuracy. Simultaneously, it can dynamically limit the concrete specimen during testing, improving the flexibility and reliability of the limiting function, ensuring appropriate limiting force, guaranteeing the stability of the concrete specimen during testing, improving its anti-interference effect, and effectively reducing measurement deviations caused by specimen vibration and displacement during testing.

[0024] On the other hand, it can predict the quantity of concrete specimens by measuring length and width before the scanner performs full measurement. This effectively combines mechanical and visual measurement, enabling dual detection of concrete specimens through both visual and mechanical physical inspection. This ensures the validity and reliability of the measurement data, guarantees the effectiveness of the scanner's alignment and focusing, and significantly improves measurement accuracy. By using bends, guides, guide seats, and air pipes, a stable medium delivery path can be constructed, effectively improving the stability and efficiency of the device's power transmission. This allows for more efficient and stable operation of the device and ensures the synchronization and coordination of position correction, limiting, and prediction of quantities for each concrete specimen. Combined with the scanner's visual inspection, it enables simultaneous detection of multiple sets of concrete specimens from both mechanical and visual perspectives. It can also measure multiple parameters of the concrete specimens, improving measurement efficiency while ensuring measurement accuracy and enhancing the diversity of measurement work.

[0025] 2. Equipped with a steering and waste collection mechanism, this device, through the cooperation of a central cylinder, connecting seat, inner tube, vertical plug, through hole, and air valve, can construct a flow-dividing and pressure-limiting structure. This enables dynamic airflow guidance, significantly improving the stability of airflow. On one hand, it can dynamically limit the maximum airflow pressure, ensuring the stability of air pressure during concrete specimen measurement. This makes the limiting pressure on the concrete specimen more balanced and stable, greatly improving the limiting effect on the concrete specimen without damaging it. This effectively enhances the reliability, flexibility, and convenience of the limiting work, making the concrete specimen more stable. It also improves the sufficiency of airflow pressure, further enhancing the smoothness and effectiveness of the concrete specimen position correction work. This allows the accuracy and stability of the limiting correction and testing work to be improved simultaneously. Furthermore, it can be used in conjunction with a rotating cylinder, hollow shaft, and turbine to utilize airflow pressure to adjust the deflection of the concrete specimen, making the turning of the concrete specimen more stable and improving the stability and comprehensiveness of the scanner's scanning work.

[0026] On the other hand, it can be used in conjunction with conveying pipes, octagonal boxes, corner boxes, air boxes, through pipes, and filter plates to construct airflow discharge channels and further dynamically guide the airflow. It can effectively utilize the airflow pressure provided by the air pump to simultaneously clean impurities and fallen residues on the surface of concrete specimens, greatly improving the timeliness, effectiveness, and reliability of the cleaning work. While avoiding interference from impurities and residues with measurement and testing work, it can also be used in conjunction with protective casings, material boxes, drawers, filter boxes, side grooves, mesh plates, discharge hoppers, and cover plates to construct a complete airflow circulation channel, allowing the airflow to circulate inside the shell and using airflow pressure to collect impurities and residues in a concentrated manner. This greatly improves the convenience and efficiency of residue and impurity cleaning work and avoids the spillage and dispersion of residues and impurities, thus improving the environmental friendliness of the device.

[0027] In summary, this measuring device effectively combines industrial visual inspection and mechanical physical inspection, enabling simultaneous measurement of multiple parameters on multiple sets of concrete specimens. It quickly achieves automatic correction of the concrete specimen position and rapid alignment and focusing of the scanner, significantly improving measurement efficiency and accuracy. Furthermore, it can simultaneously and centrally collect impurities adhering to the concrete specimens and fallen residues, effectively improving the convenience of impurity cleaning and further enhancing measurement accuracy while improving environmental friendliness. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2This is a schematic diagram of the scanner installation structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the workbench mounting structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the auxiliary pressure prediction mechanism of the present invention;

[0033] Figure 5 This is a schematic diagram of the pusher cylinder mounting structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the guide seat mounting structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the steering and waste collection mechanism of the present invention;

[0036] Figure 8 This is a schematic diagram of the octagonal box mounting structure of the present invention;

[0037] Figure 9 This is a schematic diagram of the inner tube installation structure of the present invention;

[0038] The diagram is labeled as follows: 100, housing; 101, focusing mechanism; 102, scanner; 103, rotating stage; 104, rotating disk; 105, core disk; 106, glass.

[0039] 200. Auxiliary pressure prediction mechanism; 201. Worktable; 202. Longitudinal cavity; 203. Transverse cavity; 204. Push cylinder; 205. Plug; 206. Push rod; 207. Piston; 208. Double-chamber box; 209. Side box; 210. Bend; 211. Guide tube; 212. Chamber; 213. Guide plate; 214. Support rod; 215. Clamping plate; 216. Pressure sensor; 217. Connecting rod; 218. Plug plate; 219. Isolation cylinder; 220. Air pressure sensor; 221. Guide seat; 222. Air tube;

[0040] 2011, Ball bearing; 2081, Longitudinal cavity box; 2082, Horizontal cavity box; 2091, Longitudinal box; 2092, Horizontal box;

[0041] 300. Steering waste collection mechanism; 301. Protective casing; 302. Material bin; 303. Rotary drum; 304. Hollow shaft; 305. Turbine; 306. Air pump; 307. Conveying pipe; 308. Octagonal box; 309. Central cylinder; 310. Connecting seat; 311. Inner tube; 312. Vertical plug; 313. Through hole; 314. Air valve; 315. Angle box; 316. Air box; 317. Through pipe; 318. Filter plate; 319. Drawer; 320. Filter box; 321. Side groove; 322. Mesh plate; 323. Discharge hopper; 324. Cover plate. Detailed Implementation

[0042] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0043] Example: Figure 1-9 As shown, the present invention provides a technical solution: an intelligent concrete specimen size measuring device, including a housing 100. A focusing mechanism 101 is installed on one side inside the housing 100, and a scanner 102 is tunably connected to the housing 100 through the focusing mechanism 101. The focusing mechanism 101 consists of a horizontal adjustment component, a vertical adjustment component, and an angle adjustment component. The vertical adjustment component is tunably connected to the housing 100 through the horizontal adjustment component, and the scanner 102 is tunably connected to the vertical adjustment component through the angle adjustment component, thereby realizing the horizontal and vertical position adjustment of the scanner 102 and adjusting the deflection angle of the scanner 102. A rotating stage 103 is installed on the other side inside the housing 100, and a rotating disk 104 is rotatably installed on the top of the rotating stage 103. An auxiliary pressure prediction mechanism 200 is installed on the top of the rotating disk 104.

[0044] The auxiliary pressure prediction mechanism 200 includes a worktable 201, a longitudinal cavity 202, a transverse cavity 203, a push cylinder 204, a plug block 205, a push rod 206, a piston 207, a double-chamber box 208, a side box 209, a bend 210, a guide tube 211, a chamber 212, a guide plate 213, a support rod 214, a clamping plate 215, a pressure sensor 216, a connecting rod 217, a plug plate 218, an isolation cylinder 219, a pressure sensor 220, a guide seat 221, and an air pipe 222;

[0045] A worktable 201 is embedded in the top of the rotating disk 104. Several longitudinal cavities 202 are formed at equal angles along the circumference inside the worktable 201. A transverse cavity 203 is formed at the top of the longitudinal cavities 202 inside the worktable 201. Push cylinders 204 are installed in the middle of the side end faces of both the longitudinal cavities 202 and the transverse cavities 203. A stopper 205 is slidably installed inside the push cylinder 204. A push rod 206 is installed in the middle of the side end face of the stopper 205. Pistons 206 are slidably installed inside both the longitudinal cavities 202 and the transverse cavities 203. 07. The area of ​​piston 207 is five times that of plug 205. The maximum sliding distance of piston 207 is one-fifth of the maximum sliding distance of plug 205. The longitudinal cavity 202 and the transverse cavity 203 are filled with hydraulic fluid at the position between piston 207 and isolation cylinder 219 to achieve synchronous linkage. Several double-chamber boxes 208 are installed at equal angles along the circumferential direction at the top of worktable 201. Side boxes 209 are installed on both sides of the double-chamber boxes 208 at the top edge of worktable 201.

[0046] A bend 210 is symmetrically installed at the bottom corner of the double-cavity box 208, and a guide tube 211 is installed at the bottom edge of the side box 209. The side box 209 is composed of a longitudinal box 2091 and a transverse box 2092. The longitudinal cavity 202 is connected to the longitudinal box 2091 through the guide tube 211, and the longitudinal cavity 202 corresponds one-to-one with the longitudinal box 2091. The transverse cavity 203 is connected to the transverse box 2092 through the guide tube 211, and the transverse cavity 203 corresponds one-to-one with the transverse box 2092, so as to realize the prediction of the concrete specimen.

[0047] The double-cavity box 208 has symmetrically arranged chambers 212 inside. The double-cavity box 208 consists of a longitudinal cavity box 2081 and a transverse cavity box 2082. The longitudinal cavity 202 is connected to the chamber 212 inside the longitudinal cavity box 2081 through a bend 210, and the longitudinal cavity 202 corresponds one-to-one with the chamber 212 inside the longitudinal cavity box 2081. The transverse cavity 203 is connected to the chamber 212 inside the transverse cavity box 2082 through a bend 210, and the transverse cavity 203 corresponds one-to-one with the chamber 212 inside the transverse cavity box 2082, so as to realize the alignment correction and synchronous detection of concrete specimens. Guide plates 213 are slidably installed inside the chamber 212 and the side box 209. A support rod 214 is installed in the middle of the side end face of the guide plate 213. A clamping plate 215 is installed at the end of the support rod 214. A pressure sensor 216 is installed in the middle of the side end face of the clamping plate 215.

[0048] A connecting rod 217 is mounted on the middle of the side end face of piston 207, and a stopper plate 218 is mounted on the end of connecting rod 217. Isolation cylinders 219 are installed inside the longitudinal cavity 202 and the transverse cavity 203 at positions corresponding to the stopper plate 218. A pressure sensor 220 is mounted on the end of the isolation cylinder 219. A stopper block 205 is connected to piston 207 via push rod 206, and piston 207 is connected to stopper plate 218 via connecting rod 217. Air is filled inside the isolation cylinder 219 at the position between stopper plate 218 and pressure sensor 220 to facilitate pressure transmission conversion. The worktable 201... A core disk 105 is embedded and installed at the position corresponding to the transverse cavity 203 at the top. A glass 106 is installed at the top of the worktable 201 at the top position of the core disk 105. Several ball bearings 2011 are embedded and rolled at the outer position of the top of the worktable 201 along the circumferential direction at equal angles. The scanner 102, pressure sensor 216 and air pressure sensor 220 are all connected to an external detection terminal to achieve rapid detection. A guide seat 221 is installed at the end of the push cylinder 204. Several air pipes 222 are installed at the bottom of the guide seat 221 along the circumferential direction at equal angles.

[0049] A steering and waste collection mechanism 300 is installed on the outside of the auxiliary pressure prediction mechanism 200. The steering and waste collection mechanism 300 includes a protective cylinder 301, a material box 302, a rotating drum 303, a hollow shaft 304, a turbine 305, an air pump 306, a conveying pipe 307, an octagonal box 308, a central cylinder 309, a connecting seat 310, an inner tube 311, a vertical plug 312, a through hole 313, an air valve 314, an angle box 315, an air box 316, a through pipe 317, a filter plate 318, a drawer 319, a filter box 320, a side groove 321, a mesh plate 322, a discharge hopper 323, and a cover plate 324.

[0050] A protective sleeve 301 is installed at the bottom edge of the rotary table 103. A material box 302 is installed at the bottom of the protective sleeve 301. A rotating drum 303 is installed at the top center of the material box 302, located inside the protective sleeve 301. A hollow shaft 304 is installed at the bottom center of the rotary disc 104. A turbine 305 is installed at the bottom of the hollow shaft 304, located inside the rotating drum 303. An air pump 306 is installed at the center of the side end face of the material box 302. A conveying pipe 307 is embedded at the bottom of the outer curved surface of the rotating drum 303. An octagonal box 308 is embedded at the top center of the worktable 201. A central cylinder 309 is installed at the top center of the octagonal box 308. A connecting seat 310 is installed at the bottom of the central cylinder 309.

[0051] An inner tube 311 is installed at the bottom center of the connecting seat 310. The inner tube 311 is located inside the hollow shaft 304, and the end of the inner tube 311 is connected to the inner cavity of the rotating drum 303. The inner tube 311 and the air pipe 222 are both connected to the inner cavity of the central cylinder 309 through the connecting seat 310 for diversion and guidance. A vertical plug 312 is slidably installed inside the central cylinder 309. Several through holes 313 are opened at equal angles along the circumference on the outer curved surface of the central cylinder 309 corresponding to the position of the vertical plug 312. An air valve 314 is embedded in the middle of the top of the central cylinder 309. A corner box 315 is embedded in the corner of the top of the worktable 201.

[0052] An air box 316 is installed at the position of the double-chamber box 208 in the middle of the side end face of the workbench 201. A through pipe 317 is installed at the position of the corner box 315 and the air box 316 at the top of the side end face of the octagonal box 308. The thickness of the vertical plug 312 is greater than the inner diameter of the through hole 313. The interior of the central cylinder 309 is filled with air at the top position of the vertical plug 312. The corner box 315 and the air box 316 are connected to the inner cavity of the octagonal box 308 through the through pipe 317. The inner cavity of the octagonal box 308 is connected to the through hole 313 for cleaning residue and impurities.

[0053] Filter plates 318 are embedded in the end face of corner box 315, the two inclined surfaces of air box 316, and the top of the inclined surface of octagonal box 308. A drawer 319 is slidably installed on the side end face of material box 302. A filter box 320 is slidably installed on the other end face of material box 302 at the end of drawer 319. The air inlet of air pump 306 is connected to the inner cavity of material box 302 through filter box 320. The air outlet of air pump 306 is connected to the bottom of inner cavity of rotating drum 303 through conveying pipe 307. Filter box 320 is filled with activated carbon and filter sponge. The input end of air pump 306 is electrically connected to the output end of external power supply to provide stable driving force. Side grooves 321 are opened inside the worktable 201 at the outer positions of longitudinal cavity 202 and transverse cavity 203. A mesh plate 322 is embedded in the top of side groove 321. A hopper 323 is installed at the bottom of side groove 321. A cover plate 324 is installed on the top edge of rotating drum 303.

[0054] The working principle and usage process of this invention: In actual use, the housing 100 is first opened, and the external inflation device is connected to the air valve 314. Air is injected into the central cylinder 309 through the air valve 314, forcing the vertical plug 312 to abut against the bottom of the central cylinder 309 under the action of air pressure and its own weight, blocking the through hole 313. By adjusting the air pressure at the top of the vertical plug 312, the air pressure required for the vertical plug 312 to rise can be limited. The air pressure that drives the vertical plug 312 to rise will also be applied to the concrete specimen for limiting the concrete specimen. That is, by adjusting the air pressure at the top of the vertical plug 312, the limiting pressure on the concrete specimen during the measurement process can be limited. The air pressure required for the vertical plug 312 to rise is referred to as the limiting air pressure.

[0055] During the measurement of concrete specimens of the same batch specifications, the above adjustment work only needs to be carried out before the first measurement. During the measurement of concrete specimens, the air pump 306 is started. The air pump 306 will draw air from the inside of the material box 302 and send the airflow into the protective cylinder 301 through the delivery pipe 307, forcing the turbine 305 to rotate under the impact of the airflow. Then the airflow enters the connecting seat 310 through the inner pipe 311. When the airflow pressure is lower than the limit air pressure, it is not enough to overcome the weight of the vertical plug 312 itself and the air pressure at the top of the vertical plug 312 to make the vertical plug 312 rise. At this time, the airflow will flow into the air pipe 222 first.

[0056] Subsequently, the airflow enters the guide seat 221 through the air pipe 222, and simultaneously enters each pusher cylinder 204 under the delivery of the guide seat 221. This forces the plug block 205 in each pusher cylinder 204 to slide accordingly under the action of air pressure, causing the piston 207 in each longitudinal cavity 202 and transverse cavity 203 to slide accordingly under the drive of the push rod 206. Then, under the push of the piston 207, part of the hydraulic fluid in each transverse cavity 203 will be pressed into the corresponding transverse box 2092 through each conduit 211, and part will be pressed into the chamber 212 in the corresponding transverse cavity box 2082 through the bend pipe 210. Meanwhile, under the push of the piston 207, part of the hydraulic fluid in each longitudinal cavity 202 will be pressed into the corresponding longitudinal box 2091 through each conduit 211, and part will be pressed into the chamber 212 in the corresponding longitudinal cavity box 2081 through the bend pipe 210.

[0057] Subsequently, the guide plates 213 inside each double-chamber box 208 and side box 209 will slide accordingly through the support rod 214 under the action of hydraulic fluid, and the clamping plates 215 will slide accordingly. Since the limit correction process of the four concrete specimens on the top of the workbench 201 is completely the same, for the sake of convenience, the adjustment process of one of the concrete specimens will be used as an example for explanation.

[0058] Under the hydraulic action inside the longitudinal cavity box 2081 and longitudinal box 2091, the clamping plates 215 on the longitudinal cavity box 2081 and longitudinal box 2091 will move towards each other in the longitudinal direction, and push the concrete specimen to move in the longitudinal direction when in contact with the concrete specimen. Under the hydraulic action inside the transverse cavity box 2082 and transverse box 2092, the clamping plates 215 on the transverse cavity box 2082 and transverse box 2092 will move towards each other in the transverse direction, and push the concrete specimen to move in the transverse direction when in contact with the concrete specimen. The presence of the ball bearing 2011 can greatly reduce the friction force that needs to be overcome during the displacement of the concrete specimen, so that the concrete specimen can move more stably with the push of the clamping plates 215. Finally, the clamping plates 215 on all four sides of the concrete specimen will contact the concrete specimen at the same time. At this time, the center of the concrete specimen will be located directly above the core plate 105, realizing the position correction of the concrete specimen.

[0059] During the above process, as the clamping plate 215 moves, a corresponding amount of hydraulic fluid is pumped from the corresponding longitudinal cavity 202 and transverse cavity 203 into the corresponding longitudinal cavity box 2081, transverse cavity box 2082, longitudinal box 2091 and transverse box 2092 respectively. Correspondingly, the piston 207 will move a corresponding distance. Under the linkage of the connecting rod 217, the plug plate 218 in the isolation cylinder 219 inside the corresponding longitudinal cavity 202 and transverse cavity 203 will also slide a corresponding distance. In turn, the plug plate 218 will squeeze the air in the isolation cylinder 219, causing the air pressure in the isolation cylinder 219 to change accordingly. That is, the displacement distance of the clamping plate 215 corresponds one-to-one with the displacement distance of the piston 207 and the air pressure value in the isolation cylinder 219.

[0060] During the measurement of the concrete specimen, when the clamping plates 215 on all four sides of the concrete specimen come into contact with the concrete specimen at the same time, the pressure sensor 216 will feed back the signal to the external detection terminal, indicating that the calibration of the concrete specimen is completed at this time. At the same time, the air pressure sensor 220 will feed back the air pressure in the corresponding isolation cylinder 219 to the external detection terminal. The external terminal can obtain the distance that the corresponding clamping plate 215 moves in the lateral and longitudinal directions by converting and processing the air pressure data. The length and width dimensions of the concrete specimen can be obtained by subtracting the displacement distance of the clamping plate 215 from the initial distance between the corresponding clamping plates 215.

[0061] During the above process, with the guide seat 221 connected, the air pressure applied to each plug 205 will remain consistent, and the corresponding clamps 215 corresponding to each concrete specimen will move synchronously. When some of the clamps 215 first come into contact with the concrete specimen, they are restricted by the concrete specimen, and the air pressure will preferentially drive the clamps 215 that have not come into contact with the concrete specimen to move. That is, it will preferentially drive the clamps 215 with the smaller required driving pressure to move. This automatic adjustment is repeated until the clamps 215 on all four sides of each concrete specimen fix the concrete specimen directly above the core plate 105 with the same force. The synchronous measurement of each concrete specimen is achieved through the above process. This measurement is an auxiliary prediction quantity.

[0062] After completing the position correction and auxiliary prediction of the concrete specimen, the external testing terminal drives the scanner 102 to move through the focusing mechanism 101. With the calibration function of the core disk 105, the scanner 102 can be accurately aligned with the concrete specimen. The scanner 102 is then focused vertically. The lens and sensor on the scanner 102 will accurately scan the concrete specimen and feed the scan data back to the external testing terminal to obtain the side length, angle and flatness data of the concrete specimen. The external testing terminal compares this data with the predicted data. According to actual needs, only if the difference between the measurement data of the scanner 102 and the predicted data is within the standard range can the alignment of the concrete specimen and the scanner 102 be guaranteed to be accurate enough, the measurement data of the scanner 102 be valid, and the testing can be carried out for concrete specimens of different sizes, types and specifications.

[0063] Meanwhile, during the testing of concrete specimens, the turbine 305 drives the rotating disk 104 to rotate through the hollow shaft 304, so that each concrete specimen rotates synchronously under the drive of the worktable 201, allowing the scanner 102 to scan the concrete specimens more comprehensively. The air pressure driving the turbine 305 increases gradually, which makes the starting process of the worktable 201 rotation more stable.

[0064] When the airflow pressure is not lower than the limiting air pressure, it is sufficient to overcome the weight of the vertical plug 312 itself and the air pressure at the top of the vertical plug 312, causing the vertical plug 312 to rise. At this time, the vertical plug 312 will rise under the action of air pressure and eventually no longer block the through hole 313. The airflow will enter the octagonal box 308 through the through hole 313, keeping the air pressure inside the connecting seat 310 at the limiting air pressure, and using this air pressure to limit each concrete specimen. Then, the airflow will enter each corner box 315 and air box 316 under the guidance of the through pipe 317, and finally pass through each filter plate 318 and spray onto the concrete specimen to clean the surface of the concrete specimen.

[0065] As the air inside the material box 302 is drawn out by the air pump 306, a negative pressure is formed inside the material box 302. This negative pressure forces the air inside the side groove 321 into the protective sleeve 301, and then into the material box 302 from the protective sleeve 301, thus forming a circulating airflow. A negative pressure is also formed at the mesh plate 322. Combined with the blowing action of the airflow at each filter plate 318, the residue and impurities that fall off the concrete specimen are forced to fall into the side groove 321 with the airflow. Under the limitation of the discharge hopper 323 and the cover plate 324, they fall into the drawer 319 along the protective sleeve 301 for centralized collection.

[0066] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent concrete specimen size measuring device, comprising a housing (100), characterized in that: A focusing mechanism (101) is installed on one side of the shell (100), and the shell (100) is adjustably connected to a scanner (102) via the focusing mechanism (101); a rotating platform (103) is installed on the other side of the shell (100); a rotating disk (104) is rotatably installed on the top of the rotating platform (103); and an auxiliary pressure prediction mechanism (200) is installed on the top of the rotating disk (104); The auxiliary pressure prediction mechanism (200) comprises a workbench (201); A workbench (201) is embedded and installed at the top of the rotating disk (104); a plurality of longitudinal cavities (202) are provided at equal angles in the circumferential direction inside the workbench (201); a transverse cavity (203) is provided at the top of the longitudinal cavity (202) inside the workbench (201); a push cylinder (204) is installed in the middle of the side end surfaces of the longitudinal cavity (202) and the transverse cavity (203); a plug (205) is slidably installed inside the push cylinder (204); a push rod (206) is installed in the middle of the side end surface of the plug (205); a piston (207) is slidably installed inside the longitudinal cavity (202) and the transverse cavity (203); a plurality of double-cavity boxes (208) are provided at equal angles in the circumferential direction at the top of the workbench (201); and side boxes (209) are installed at the sides of the double-cavity boxes (208) at the top edge of the workbench (201); A curved pipe (210) is symmetrically installed at the bottom corner of the double-chamber box (208), a conduit (211) is installed at the bottom edge of the side box (209), a chamber (212) is symmetrically opened inside the double-chamber box (208), a guide plate (213) is slidably installed inside the chamber (212) and the side box (209), a support rod (214) is installed in the middle of the side end surface of the guide plate (213), a clamping plate (215) is installed at the end of the support rod (214), and a pressure sensor (216) is installed in the middle of the side end surface of the clamping plate (215); A connecting rod (217) is installed in the middle of the side end face of the piston (207), and a plug plate (218) is installed at the end of the connecting rod (217). Isolation cylinders (219) are installed at positions corresponding to the plug plate (218) inside the longitudinal cavity (202) and the transverse cavity (203), and an air pressure sensor (220) is installed at the end of the isolation cylinder (219). A guide seat (221) is installed at the end of the push cylinder (204), and a plurality of air pipes (222) are installed at equal angles along the circumferential direction at the bottom end of the guide seat (221).

2. An intelligent concrete specimen size measuring device according to claim 1, characterized in that: A core disk (105) is embedded and installed at a position corresponding to the horizontal cavity (203) at the top of the workbench (201); a glass (106) is installed at a position on the top of the core disk (105) at the top of the workbench (201); a plurality of balls (2011) are embedded and installed in a rolling manner at equal angles along a circumferential direction at a position outside the glass (106); and the scanner (102), the pressure sensor (216) and the air pressure sensor (220) are all connected to an external detection terminal.

3. The intelligent concrete specimen size measuring device according to claim 1 is characterized in that: The double-cavity box (208) is composed of a longitudinal cavity box (2081) and a transverse cavity box (2082); the longitudinal cavity (202) is connected to a cavity (212) inside the longitudinal cavity box (2081) via a curved tube (210), and the longitudinal cavity (202) corresponds to the cavity (212) inside the longitudinal cavity box (2081) in a one-to-one manner; the transverse cavity (203) is connected to a cavity (212) inside the transverse cavity box (2082) via a curved tube (210), and the transverse cavity (203) corresponds to the cavity (212) inside the transverse cavity box (2082) in a one-to-one manner.

4. The intelligent concrete specimen size measuring device according to claim 1 is characterized in that: The side box (209) is composed of a longitudinal box (2091) and a transverse box (2092); the longitudinal cavity (202) is connected to the longitudinal box (2091) via a conduit (211), and the longitudinal cavity (202) corresponds to the longitudinal box (2091) one-to-one; the transverse cavity (203) is connected to the transverse box (2092) via a conduit (211), and the transverse cavity (203) corresponds to the transverse box (2092) one-to-one.

5. The intelligent concrete specimen size measuring device according to claim 1 is characterized in that: The plug block (205) is connected to the piston (207) via a push rod (206), and the piston (207) is connected to the plug plate (218) via a connecting rod (217). The interior of the isolation cylinder (219) is filled with air at a position between the plug plate (218) and the air pressure sensor (220).

6. The intelligent concrete specimen size measuring device according to claim 1 is characterized in that: The area of ​​the piston (207) is five times the area of ​​the plug (205), the maximum sliding distance of the piston (207) is one fifth of the maximum sliding distance of the plug (205), and the longitudinal cavity (202) and the transverse cavity (203) are filled with hydraulic fluid at a position between the piston (207) and the isolation cylinder (219).

7. The intelligent concrete specimen size measuring device according to claim 1 is characterized in that: A steering waste collection mechanism (300) is installed outside the auxiliary pressure prediction mechanism (200); The diverting waste collection mechanism (300) comprises a casing (301); A protective sleeve (301) is installed at the bottom edge of the rotating table (103), a material box (302) is installed at the bottom of the protective sleeve (301), a rotating drum (303) is installed at the middle of the top of the material box (302) at a position inside the protective sleeve (301), a hollow shaft (304) is installed at the middle of the bottom of the rotating disk (104), a turbine (305) is installed at the bottom of the hollow shaft (304) at a position inside the rotating drum (303), an air pump (306) is installed at the middle of the side end surface of the material box (302), a conveying pipe (307) is embedded and installed at the bottom of the outer curved surface of the rotating drum (303), an octagonal box (308) is embedded and installed at the middle of the top of the working table (201), a central tube (309) is installed at the middle of the top of the octagonal box (308), and a connecting seat (310) is installed at the bottom of the central tube (309); An inner tube (311) is installed in the middle of the bottom end of the connecting seat (310), a vertical plug (312) is slidably installed inside the central tube (309), a plurality of through holes (313) are opened at equal angles in the circumferential direction at the position of the vertical plug (312) on the outer curved surface of the central tube (309), and an air valve (314) is embedded in the middle of the top end of the central tube (309), a corner box (315) is embedded in the top corner of the workbench (201), an air box (316) is installed in the middle of the side end surface of the workbench (201) at a position corresponding to the double-cavity box (208), and a through pipe (317) is installed at the top of the side end surface of the octagonal box (308) at positions corresponding to the corner box (315) and the air box (316); The end surface of the corner box (315), the inclined surfaces on both sides of the air box (316) and the top of the inclined surface of the octagonal box (308) are all embedded with filter plates (318); the side end surface of the material box (302) is embedded with a drawer (319) for sliding installation; the other end surface of the material box (302) is located at the end of the drawer (319) and is embedded with a filter box (320) for sliding installation; the inside of the workbench (201) is provided with a side groove (321) at the outer position of the longitudinal cavity (202) and the transverse cavity (203); the top end of the side groove (321) is embedded with a mesh plate (322); the bottom end of the side groove (321) is installed with a lower hopper (323); and the top edge of the rotating drum (303) is installed with a cover plate (324).

8. The intelligent concrete specimen size measuring device according to claim 7 is characterized in that: The air inlet end of the air pump (306) is connected to the inner cavity of the material box (302) through the filter box (320), and the air outlet end of the air pump (306) is connected to the bottom of the inner cavity of the rotating drum (303) through the delivery pipe (307). The filter box (320) is filled with activated carbon and filter sponge. The input end of the air pump (306) is electrically connected to the output end of an external power supply.

9. The intelligent concrete specimen size measuring device according to claim 7, characterized in that: The inner tube (311) is located inside the hollow shaft (304), and the end of the inner tube (311) is in communication with the inner cavity of the rotating cylinder (303). The inner tube (311) and the air pipe (222) are both in communication with the inner cavity of the central cylinder (309) via the connecting seat (310).

10. The intelligent concrete specimen size measuring device according to claim 7, characterized in that: The thickness of the vertical plug (312) is greater than the inner diameter of the through hole (313); the interior of the central tube (309) located at the top of the vertical plug (312) is filled with air; the corner box (315) and the air box (316) are both connected to the inner cavity of the octagonal box (308) through the through pipe (317); and the inner cavity of the octagonal box (308) is connected to the through hole (313).

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