A concrete prefabricated composite floor strength testing device

Abstract

The present invention relates to the technical field of strength detection, and provides a concrete prefabricated composite floor strength detection device, comprising a frame assembly, a conveying component, an ultrasonic detection body, a computer control module, a drive system and a multi-point continuous detection mechanism, wherein the ultrasonic detection body and the computer control module are mounted on the surface of the frame assembly, the drive system is simultaneously connected to the conveying component and the multi-point continuous detection mechanism in a transmission manner, the conveying component is used to convey the composite plate, the multi-point continuous detection mechanism comprises a transmission component, a detection component and a longitudinal movement component, the detection component and the longitudinal movement component are both connected to the transmission component, the rotational motion of the transmission component can simultaneously control an ultrasonic generator and an ultrasonic receiver to perform horizontal and longitudinal motion, the ultrasonic generator and the ultrasonic receiver are both connected to the ultrasonic detection body in a communication manner, and the device has the characteristics of uniform measurement point selection, comprehensive measurement data and accurate measurement results.

Description

Technical Field

[0001] The invention relates to the technical field of strength detection, and in particular to a strength detection device for a prefabricated concrete composite floor slab. Background Art

[0002] Precast composite floor slabs are assembled integral floor slabs composed of precast panels and cast-in-place reinforced concrete layers. The precast part of the precast composite floor slab can adopt prestressed solid thin plates, and it can also adopt reinforced concrete hollow plates. It is widely used in engineering.

[0003] In the prior art, there are several non-destructive testing technologies for the strength of concrete and precast concrete parts, including the rebound method, the ultrasonic method and the ultrasonic-rebound combined method. The testing of the strength of concrete and precast concrete parts is of great significance to the safety of buildings.

[0004] Patent No. CN109142540B discloses a concrete strength testing device, including a testing device body, an ultrasonic receiver protective cover, an ultrasonic generator protective cover and an intelligent processing system. Rubber handshakes are fixedly installed at both ends of the testing device body, grooves are provided at both ends of the rubber handshakes, and fixing rods are fixedly installed in the grooves. Annular cushions are fixedly installed at the bottoms of the ultrasonic receiver protective cover and the ultrasonic generator protective cover, and circular grooves are provided at the center positions of the bottoms of the ultrasonic receiver protective cover and the ultrasonic generator protective cover. An LED detection light is fixedly installed on the inner side wall of the circular groove away from the opening end, and a mounting hole is provided at the center position of the inner side wall of the circular groove away from the opening end. The concrete strength testing device is reasonably designed, easy to use, and can effectively improve the accuracy of concrete strength detection.

[0005] Since in the production process of prefabricated composite floor slabs, there is an industry problem that a large number of prefabricated composite floor slabs need to be tested for strength and a large number of testing points on the surface of each prefabricated composite floor slab need to be sampled and tested. Although the above technical solutions can effectively improve the accuracy of concrete strength testing, they are not enough to solve the above technical problems. Therefore, a concrete prefabricated composite floor slab strength testing equipment that can automatically and continuously perform multi-point sampling and testing is needed to solve this industry problem. Summary of the invention

[0006] The purpose of the present invention is to provide a prefabricated concrete composite floor slab strength testing device, aiming to solve the problems existing when using an existing prefabricated concrete composite floor slab strength testing device.

[0007] To achieve the above object, the present invention provides the following technical solution: a prefabricated concrete composite floor strength detection device, comprising a frame assembly, a conveying assembly, an ultrasonic detection body and a computer control module, wherein the ultrasonic detection body and the computer control module are mounted on the surface of the frame assembly, the conveying assembly comprises a conveyor belt and a belt roller, the belt roller is connected to the frame assembly, the conveyor belt is connected to the belt roller, a composite plate is placed on the surface of the belt roller, and the device further comprises:

[0008] A drive system, the drive system comprising a drive motor, a first drive shaft, a drive gear, a sector gear and an electromagnet, the drive motor and the electromagnet are both fixedly connected to the frame assembly, the first drive shaft is connected to the drive motor, the drive gear is fixedly connected to the first drive shaft, the sector gear is sleeved on the surface of the first drive shaft, and the electromagnet is magnetically connected to the sector gear;

[0009] A multi-point continuous detection mechanism, the multi-point continuous detection mechanism includes a transmission assembly, a detection assembly and a longitudinal movement assembly, the transmission assembly includes a first transmission gear, a transverse transmission roller, a curved groove and a longitudinal transmission wheel, the two transverse transmission rollers are symmetrical about the stacking plate, a first transmission gear is arranged on one side of the lower transverse transmission roller, the fan gear is in transmission connection with the first transmission gear, a curved groove is arranged on the surface of the transverse transmission roller, a ratchet is installed on the surface of the frame assembly, and the first transmission gear is meshed with the ratchet;

[0010] The detection assembly includes an ultrasonic generator, an ultrasonic receiver, a curved pipe, a straight rod, a coordinate sensor and a CCD camera module, wherein the ultrasonic generator and the ultrasonic receiver are respectively fixedly connected to the curved pipe, one end of the straight rod is slidably connected to the curved groove, one end of the straight rod is movably connected to the curved pipe, and the coordinate sensor and the CCD camera module are respectively arranged on both sides of the curved pipe;

[0011] The longitudinal moving assembly includes a pulley and a V-shaped frame, the pulley is fixedly connected to the V-shaped frame, the longitudinal transmission wheel is slidably connected to the pulley, both sides of the V-shaped frame are slidably connected to the frame assembly, and one end of the curved pipe away from the straight rod is movably sleeved on the surface of the V-shaped frame;

[0012] The conveyor belt further comprises a second transmission gear, the belt roller is fixedly connected to the second transmission gear, and the driving gear is transmission-connected to the second transmission gear;

[0013] The ultrasonic wave generator and the ultrasonic wave receiver are both connected to the ultrasonic wave detection body for communication. The ultrasonic wave detection body, the driving motor, the electromagnet, the coordinate sensor and the CCD camera module are all connected to the computer control module for communication.

[0014] As a further solution of the present invention, it further includes a calibration component, which includes a flipping plate, a pressure sensor, a driving motor, and a rotating shaft. The pressure sensor is fixedly connected to the flipping plate. The driving motor is connected to the rotating shaft. The flipping plate is fixedly connected to the rotating shaft. The frame assembly is fixedly connected to the driving motor. The computer control module is communicatively connected to the pressure sensor.

[0015] As a further solution of the present invention, the surface of the longitudinal transmission wheel is provided with a first curve track and a second curve track at intervals. A plurality of first curve tracks and second curve tracks are symmetric about the center of the longitudinal transmission wheel. The pulley is slidably connected between the first curve track and the second curve track.

[0016] As a further solution of the present invention, the driving system further includes a key bar, a return spring, and a fixed seat. The surface of the first driving shaft is provided with a key bar. The surface of the sector gear is provided with a key groove. The key bar is slidably connected to the key groove. The frame assembly is fixedly connected to the fixed seat. The electromagnet is embedded on the surface of the fixed seat. The return spring is connected between the sector gear and the fixed seat.

[0017] As a further solution of the present invention, the transmission component further includes a first transmission shaft, a second transmission shaft, and a belt transmission part. Both the first transmission shaft and the second transmission shaft are connected to the frame assembly. Two transverse transmission rollers are respectively fixedly sleeved on the surfaces of the first transmission shaft and the second transmission shaft. The first transmission gear is fixedly connected to the first transmission shaft. The belt transmission part is connected between the first transmission shaft and the second transmission shaft.

[0018] As a further solution of the present invention, the detection component further includes a ball head, a pressing spring, a collar, and a fixing piece. The ball head is fixedly connected to the straight rod. The curve groove is slidably connected to the ball head. The elbow pipe is fixedly connected to the collar. The collar is movably sleeved on the surface of the C-shaped frame. Fixing pieces are fixedly connected to the surfaces of both the elbow pipe and the straight rod. The pressing spring is connected between the two fixing pieces.

[0019] As a further solution of the present invention, the longitudinal moving component further includes a balance plate and a limiting piece. The balance plate is fixedly connected between the C-shaped frame and the limiting piece. A limiting groove is provided on the surface of the frame assembly. The balance plate is slidably connected in the limiting groove. The limiting piece is in sliding contact with the surface of the frame assembly.

[0020] As a further solution of the present invention, it further includes a deviation correction plate. An elastic movable part is connected to the surface of the deviation correction plate. The elastic movable part is connected to the frame assembly.

[0021] As a further solution of the present invention, a scraping plate is installed on the surface of the frame assembly. The surface of the laminated plate is in sliding contact with the scraping plate.

[0022] The beneficial effects of the present invention are: the design of the mutual coordination between the drive system, the multi-point continuous detection mechanism, the conveying component, the ultrasonic detection body and the computer control module. On the one hand, the drive system utilizes the drive gear and the fan gear to be respectively connected to the second transmission gear and the first transmission gear to achieve the purpose of simultaneously moving the overlapping plate and adjusting the horizontal and longitudinal positions of the ultrasonic generator and the ultrasonic receiver. When the overlapping plate stops, the ultrasonic generator and the ultrasonic receiver can be cycled multiple times in sequence to detect the two sides and the middle position of the overlapping plate, realizing the function of automatic continuous and uniform step-by-step point testing on the surface of the overlapping plate, and has the characteristics of convenient measurement, uniform selection of measurement points, comprehensive measurement data and accurate measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a first cross-sectional view of a prefabricated concrete composite floor slab strength detection device according to an embodiment of the present invention.

[0024] Figure 2 An exploded view of a precast concrete composite floor slab strength testing device according to an embodiment of the present invention.

[0025] Figure 3 It is a three-dimensional diagram of a driving system according to an embodiment of the present invention.

[0026] Figure 4 It is an exploded diagram of the multi-point continuous detection mechanism according to an embodiment of the present invention.

[0027] Figure 5 It is a three-dimensional diagram of a transmission assembly according to an embodiment of the present invention.

[0028] Figure 6 It is a stereoscopic diagram of a detection assembly according to an embodiment of the present invention.

[0029] Figure 7 It is a three-dimensional diagram of a longitudinal moving component according to an embodiment of the present invention.

[0030] Figure 8 It is a three-dimensional diagram of the multi-point continuous detection mechanism according to an embodiment of the present invention.

[0031] Fig. 9 For the present invention Figure 8 A partial enlarged view of point a in the middle.

[0032] Fig.10 It is a three-dimensional diagram of a conveying assembly according to an embodiment of the present invention.

[0033] Fig.11 It is a stereoscopic diagram of the calibration component of the embodiment of the present invention.

[0034] Fig.12 This is a first stereoscopic diagram of a prefabricated concrete composite floor slab strength detection device according to an embodiment of the present invention.

[0035] Fig.13 This is the second perspective view of the strength detection device for a precast concrete composite floor slab according to an embodiment of the present invention.

[0036] Fig.14 This is the second cross-sectional view of the strength detection device for a precast concrete composite floor slab according to an embodiment of the present invention.

[0037] Fig.15 This is the third cross-sectional view of the strength detection device for a precast concrete composite floor slab according to an embodiment of the present invention.

[0038] Fig.16 For the present invention Fig.15 The partial enlarged view at position b.

[0039] Fig.17 This is the side view of the strength detection device for a precast concrete composite floor slab according to an embodiment of the present invention.

[0040] Fig.18 This is the trend distribution diagram of the measurement points on the surface of the composite floor slab in an embodiment of the present invention.

[0041] Reference numerals: 1 - frame assembly, 11 - limit groove, 12 - pawl, 13 - scraper, 2 - drive system, 21 - drive motor, 22 - first drive shaft, 221 - key bar, 23 - drive gear, 24 - sector gear, 241 - magnetic sheet, 25 - electromagnet, 26 - return spring, 27 - fixed seat, 3 - multi-point continuous detection mechanism, 31 - transmission component, 311 - first transmission shaft, 312 - second transmission shaft, 313 - first transmission gear, 314 - transverse transmission roller, 315 - curve groove, 316 - longitudinal transmission wheel, 3161 - first curve track, 3162 - second curve track, 317 - belt transmission part, 32 - detection component, 321 - ultrasonic generator, 322 - ultrasonic receiver, 323 - elbow pipe, 324 - straight rod, 3241 - ball head, 325 - pressure spring, 326 - collar, 327 - coordinate sensor, 328 - CCD camera module, 329 - fixing piece, 33 - longitudinal movement component, 331 - pulley, 332 - C-shaped frame, 333 - balance plate, 334 - limit piece, 4 - conveying component, 41 - conveyor belt, 42 - belt roller, 43 - second transmission gear, 5 - calibration component, 51 - flip plate, 52 - pressure sensor, 53 - drive motor, 54 - rotating shaft, 6 - deviation correction plate, 61 - elastic movable piece, 7 - ultrasonic detection main body, 8 - computer control module, 9 - composite floor slab, 91 - steel bar frame. Detailed implementation manners

[0042] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific 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.

[0043] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0044] See also Figures 1 to 18 In one embodiment of the present invention, a concrete prefabricated composite floor strength detection device includes a frame assembly 1, a conveying assembly 4, an ultrasonic detection body 7 and a computer control module 8, wherein the ultrasonic detection body 7 and the computer control module 8 are installed on the surface of the frame assembly 1, the conveying assembly 4 includes a conveyor belt 41 and a belt roller 42, the belt roller 42 is connected to the frame assembly 1, the conveyor belt 41 is connected to the belt roller 42, and a composite plate 9 is placed on the surface of the belt roller 42, and further includes:

[0045] The driving system 2 includes a driving motor 21, a first driving shaft 22, a driving gear 23, a sector gear 24 and an electromagnet 25. The driving motor 21 and the electromagnet 25 are both fixedly connected to the frame assembly 1. The first driving shaft 22 is connected to the driving motor 21, the driving gear 23 is fixedly connected to the first driving shaft 22, the sector gear 24 is sleeved on the surface of the first driving shaft 22, and the electromagnet 25 is magnetically connected to the sector gear 24.

[0046] A multi-point continuous detection mechanism 3, the multi-point continuous detection mechanism 3 includes a transmission component 31, a detection component 32 and a longitudinal movement component 33, the transmission component 31 includes a first transmission gear 313, a transverse transmission roller 314, a curved groove 315 and a longitudinal transmission wheel 316, the two transverse transmission rollers 314 are symmetrical about the stacking plate 9, a first transmission gear 313 is arranged on one side of the lower transverse transmission roller 314, the sector gear 24 is in transmission connection with the first transmission gear 313, a curved groove 315 is arranged on the surface of the transverse transmission roller 314, a ratchet 12 is installed on the surface of the frame assembly 1, and the first transmission gear 313 is meshed with the ratchet 12;

[0047] The detection assembly 32 includes an ultrasonic generator 321, an ultrasonic receiver 322, a curved tube 323, a straight rod 324, a coordinate sensor 327 and a CCD camera module 328. The ultrasonic generator 321 and the ultrasonic receiver 322 are respectively fixedly connected to the curved tube 323, one end of the straight rod 324 is slidably connected to the curved groove 315, one end of the straight rod 324 is movably connected to the curved tube 323, and the coordinate sensor 327 and the CCD camera module 328 are respectively arranged on both sides of the curved tube 323;

[0048] The longitudinal moving assembly 33 includes a pulley 331 and a shaped frame 332, the pulley 331 is fixedly connected to the shaped frame 332, the longitudinal transmission wheel 316 is slidably connected to the pulley 331, the two sides of the shaped frame 332 are slidably connected to the frame assembly 1, and the end of the curved pipe 323 away from the straight rod 324 is movably sleeved on the surface of the shaped frame 332;

[0049] The conveyor belt 41 further includes a second transmission gear 43, the belt roller 42 is fixedly connected to the second transmission gear 43, and the driving gear 23 is transmission-connected to the second transmission gear 43;

[0050] The ultrasonic generator 321 and the ultrasonic receiver 322 are both connected to the ultrasonic detection body 7 for communication. The ultrasonic detection body 7, the drive motor 21, the electromagnet 25, the coordinate sensor 327 and the CCD camera module 328 are all connected to the computer control module 8 for communication. The coordinate sensor 327 can not only monitor the position coordinates of the ultrasonic generator 321 and the ultrasonic receiver 322, but the ultrasonic generator 32 is composed of an ultrasonic generator and a protective cover, and the ultrasonic generator is located inside the protective cover. The ultrasonic receiver 322 is composed of an ultrasonic receiver and a protective cover, and the ultrasonic receiver is located inside the protective cover. The ultrasonic generator 321 and the ultrasonic receiver are both connected to the ultrasonic detection body 7 for communication. Since the protective cover in the ultrasonic generator 32 is consistent with the protective cover in the ultrasonic receiving element 322, the names of the two protective covers are not individually marked and distinguished here. When the ultrasonic generator 321 and the ultrasonic receiving element 322 are fitted with the laminated plate 9 for detection, they can also be used to monitor the coordinate data of the detected points on the surface of the laminated plate 9. Each position coordinate corresponds to a measurement data. The CCD camera module 328 takes a picture of each measurement, thereby ensuring the accuracy of the measurement point and the integrity of the measurement data.

[0051] See also Fig. 9 Furthermore, the surface of the longitudinal transmission wheel 316 is provided with a first curved track 3161 and a second curved track 3162 at intervals, and the plurality of first curved tracks 3161 and second curved tracks 3162 are symmetrical about the center of the longitudinal transmission wheel 316, and the pulley 331 is slidably connected between the first curved track 3161 and the second curved track 3162, and the number of the first curved track 3161 and the second curved track 3162 are both three, and the sizes of the three curved tracks 3161 and the second curved track 3162 are consistent.

[0052] See also Figure 3 and Fig.16, Further, the drive system 2 further includes a key bar 221, a return spring 26, and a fixed seat 27. A key bar 221 is provided on the surface of the first drive shaft 22. A key groove is provided on the surface of the sector gear 24. The key bar 221 is slidably connected to the key groove. The frame assembly 1 is fixedly connected to the fixed seat 27. The electromagnet 25 is embedded in the surface of the fixed seat 27. The return spring 26 is connected between the sector gear 24 and the fixed seat 27. A magnetic sheet 241 is embedded on the surface of the sector gear 24. The energized electromagnet 25 is magnetically attached to the magnetic sheet 241. After the laminated plate 9 is detected, the electromagnet 25 is controlled to be de-energized. The elastic force of the return spring 26 controls the sector gear 24 to automatically reset and disengage from the first transmission gear 313.

[0053] Please refer to Figure 5 and Figure 8 , Further, the transmission assembly 31 further includes a first transmission shaft 311, a second transmission shaft 312, and a belt transmission part 317. The first transmission shaft 311 and the second transmission shaft 312 are both connected to the frame assembly 1. The two transverse transmission rollers 314 are respectively fixedly sleeved on the surfaces of the first transmission shaft 311 and the second transmission shaft 312. The first transmission gear 313 is fixedly connected to the first transmission shaft 311. The belt transmission part 317 is connected between the first transmission shaft 311 and the second transmission shaft 312. The belt transmission part 317 is relatively common in the prior art and will not be elaborated here.

[0054] Please refer to Figure 6 and Figure 8 , Further, the detection assembly 32 further includes a ball head 3241, a pressure spring 325, a collar 326, and a fixing piece 329. The ball head 3241 is fixedly connected to the straight rod 324. The curved groove 315 is slidably connected to the ball head 3241. The elbow pipe 323 is fixedly connected to the collar 326. The collar 326 is movably sleeved on the surface of the C-shaped frame 332. Fixing pieces 329 are fixedly connected to the surfaces of the elbow pipe 323 and the straight rod 324. The pressure spring 325 is connected between the two fixing pieces 329. The pressure of the pressure spring 325 can press the ultrasonic generating element 321 and the ultrasonic receiving element 322 tightly against the surface of the laminated plate 9, thereby preventing external sound waves from affecting the inside of the ultrasonic generating element 321 and the ultrasonic receiving element 322.

[0055] Please refer to Figure 1 , Figure 7 and Figure 8, Further, the longitudinal movement component 33 further includes a balance plate 333 and a limit piece 334. The balance plate 333 is fixedly connected between the C-shaped frame 332 and the limit piece 334. A limit groove 11 is provided on the surface of the frame assembly 1. The balance plate 333 is slidably connected in the limit groove 11. The limit piece 334 is in sliding contact with the surface of the frame assembly 1. The balance plate 333 and the limit piece 334 can prevent the C-shaped frame 332 from having a lateral displacement. When the C-shaped frame 332 is limited, the detection component 32 connected to the C-shaped frame 332 through the collar 326 is also limited, so that when the ball head 3241 slides in the curve groove 315, the bent pipe 323 and the straight rod 324 can horizontally displace along the C-shaped frame 332.

[0056] In the embodiment of the present invention, the pawl 12 functions to limit the first transmission gear 313. When the sector gear 24 is disengaged from the first transmission gear 313, the pawl 12 can prevent the first transmission gear 313 from rotating in the reverse direction. During the process of the sector gear 24 engaging with and disengaging from the first transmission gear 313, it can exactly drive the ball head 3241 to move one-third of the distance in the curve groove 315, and can exactly drive the pulley 331 to move from the midpoint of the second curve track 3162 of the rotating longitudinal transmission wheel 316 to the midpoint of the first curve track 3161 or from the midpoint of the first curve track 3161 to the midpoint of the second curve track 3162.

[0057] Please refer to Figure 1 , Figures 11 to 15 In an embodiment of the present invention, it further includes a calibration component 5. The calibration component 5 includes a flip plate 51, a pressure sensor 52, a drive motor 53, and a rotating shaft 54. The pressure sensor 52 is fixedly connected to the flip plate 51. The drive motor 53 is connected to the rotating shaft 54. The flip plate 51 is fixedly connected to the rotating shaft 54. The frame assembly 1 is fixedly connected to the drive motor 53. The computer control module 8 is communicatively connected to the pressure sensor 52.

[0058] In the embodiment of the present invention, when the moving laminated plate 9 contacts the pressure sensor 52, the pressure sensor 52 monitors the pressure of the laminated plate 9. The computer control module 8 determines the position of the laminated plate 9 reaching the reference point by receiving the pressure signal of the pressure sensor 52, and sends a shutdown signal to the drive motor 21 to stop the conveyor belt 41. At this time, the sector gear 24 is exactly disengaged from the first transmission gear 313, the ball head 3241 is located at the midpoint of the curve groove 315, and the pulley 331 is located at the midpoint of the first curve track 3161.

[0059] Please refer to Figure 1 , Figures 11 to 15In one embodiment of the present invention, a deviation correcting plate 6 is further included, and an elastic movable member 661 is connected to the surface of the deviation correcting plate 6 , and the elastic movable member 661 is connected to the frame assembly 1 .

[0060] In an embodiment of the present invention, the elastic movable part 661 is composed of a spring and a movable pin, the movable pin is fixedly connected to the correcting plate 6, the frame assembly 1 is movably connected to the movable pin, the spring is connected between the correcting plate 6 and the movable pin, and the correcting plate 6 is used to prevent the overlapping plate 9 from deflecting during movement, thereby ensuring that the ultrasonic generator 321 and the ultrasonic receiver 322 are accurately positioned and detected on the surface of the overlapping plate 9.

[0061] See also Fig.12 and Fig.13 In one embodiment of the present invention, a scraper 13 is installed on the surface of the frame assembly 1, and the surface of the overlapping plate 9 is in sliding contact with the scraper 13.

[0062] In the embodiment of the present invention, the scraper 13 is made of rubber, which can clean up foreign objects such as gravel on the surface of the overlapping plate 9 during its movement, thereby preventing the above foreign objects from affecting the measurement.

[0063] Working principle: In the initial state, the ball head 3241 is located at one end of the curved groove 315, the pulley 331 is located at the midpoint of the second curved track 3162 of the longitudinal transmission wheel 316, and the corresponding ultrasonic generator 321 and ultrasonic receiver 322 are both located near the edge of the composite plate 9, and the distance between the ultrasonic generator 321 and the ultrasonic receiver 322 and the composite plate 9 is the largest.

[0064] When the stacking plate 9 is placed on the surface of the conveyor belt 41 for strength testing, first, the driving motor 21 drives the driving gear 23 to rotate through the first driving shaft 22, and the rotating driving gear 23 drives the belt roller 42 to rotate through the second transmission gear 43. The rotating belt roller 42 drives the stacking plate 9 to move toward the flip plate 51 through the conveyor belt 41. In this process, the correction plate 6 can prevent the stacking plate 9 from deviating during the movement. When the CCD camera module 328 detects that the stacking plate 9 passes by, it further controls the driving motor 53 to drive the flip plate 51 through the rotating shaft 54. 1 rotates 90 degrees, the computer control module 8 controls the electromagnet 25 to be energized, and the magnetic attraction force generated between the energized electromagnet 25 and the magnetic sheet 241 controls the sector gear 24 to move along the first drive shaft 22 and the key bar 221 to a position in transmission connection with the first transmission gear 313. At this time, the sector gear 24 rotating with the first drive shaft 22 controls the first transmission shaft 311, the second transmission shaft 312 and the transverse transmission roller 314 to rotate through the first transmission gear 313, and the rotating transverse transmission roller 314 is slidably connected with the ball head 3241 through the curved groove 315. The purpose of driving the straight rod 324, the curved tube 323, the collar 326, the ultrasonic generator 321 and the ultrasonic receiver 322 to move laterally along the yoke 332 is achieved. The pulley 331 moves from the midpoint of the second curved track 3162 of the rotating longitudinal transmission wheel 316 toward the midpoint of the first curved track 3161. When the pressure sensor 52 detects the pressure of the laminated plate 9, the sector gear 24 disengages from the first transmission gear 313, the ball head 3241 is located at the midpoint of the curved groove 315, and the pulley 331 is located at the midpoint of the first curved track 3161. The computer control module 8 determines the position where the overlapping plate 9 reaches the reference point by receiving the pressure signal from the pressure sensor 52, and sends a closing signal to the drive motor 21 to stop the conveyor belt 41. At this time, the ultrasonic generator 321 and the ultrasonic receiver 322 are exactly in contact with the middle position on both sides of the overlapping plate 9 respectively. Controlling the ultrasonic generator 321 and the ultrasonic receiver 322 to move away from the overlapping plate 9 or to move longitudinally can also prevent the ultrasonic generator 321 or the ultrasonic receiver 322 from interfering with the steel frame 91 on the surface of the overlapping plate 9.

[0065] Then, the ultrasonic generator 321 sends an ultrasonic signal to the superimposed plate 9, the ultrasonic receiver 322 receives the ultrasonic signal, and the ultrasonic detection body 7 processes the received ultrasonic signal and transmits it to the computer control module 8 for storage and further processing: the coordinate sensor 327 is used to monitor the position coordinates of the ultrasonic generator 321 and the ultrasonic receiver 322 on the surface of the superimposed plate 9, each position coordinate corresponds to a measurement data, and the CCD camera module 328 takes a picture of each measurement, so as to ensure the accuracy of the measurement point and the integrity of the measurement data.

[0066] Then the driving motor 21 drives the driving gear 23 and the fan gear 24 to rotate again through the first driving shaft 22. When the fan gear 24 disengages from the first transmission gear 313 again, it stops. At this time, the ball head 3241 is located at the other end of the curved groove 315, and the pulley 331 is located at the midpoint of the next first curved track 3161. At this time, the ultrasonic generator 321 and the ultrasonic receiver 322 again detect the edge position of the overlapping plate 9. This cycle is repeated to realize the function of automatic continuous and uniform step-by-step point testing on the surface of the overlapping plate 9, which has the characteristics of convenient measurement, uniform selection of measurement points, comprehensive measurement data and accurate measurement results.

[0067] In summary, the design of the mutual coordination among the drive system 2, the multi-point continuous detection mechanism 3, the conveying assembly 4, the ultrasonic detection body 7 and the computer control module 8, on the one hand, the drive system 2 utilizes the drive gear 23 and the fan gear 24 to be respectively connected to the second transmission gear 43 and the first transmission gear 313 to achieve the purpose of simultaneously moving the overlapping plate 9 and adjusting the horizontal and longitudinal positions of the ultrasonic generator 321 and the ultrasonic receiver 322; when the overlapping plate 9 stops, the ultrasonic generator 321 and the ultrasonic receiver 322 can be cycled multiple times in sequence to detect the two sides and the middle position of the overlapping plate 9, thereby realizing the function of automatically performing continuous and uniform step-by-step point testing on the surface of the overlapping plate 9, and having the characteristics of convenient measurement, uniform selection of measurement points, comprehensive measurement data and accurate measurement results.

[0068] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the subject matter of the invention. These embodiments and their variations are included in the scope and subject matter of the invention, and are included in the invention described in the claims and the scope of their equivalents.

[0069] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A concrete prefabricated composite floor strength testing device, comprising a frame assembly (1), a conveying assembly (4), an ultrasonic detection body (7) and a computer control module (8), wherein the ultrasonic detection body (7) and the computer control module (8) are mounted on the surface of the frame assembly (1), the conveying assembly (4) comprises a conveyor belt (41) and a belt roller (42), the belt roller (42) is connected to the frame assembly (1), the conveyor belt (41) is connected to the belt roller (42), and a composite plate (9) is placed on the surface of the belt roller (42), characterized in that: Also includes: A drive system (2), the drive system (2) comprising a drive motor (21), a first drive shaft (22), a drive gear (23), a sector gear (24) and an electromagnet (25), the drive motor (21) and the electromagnet (25) being fixedly connected to the frame assembly (1), the first drive shaft (22) being connected to the drive motor (21), the drive gear (23) being fixedly connected to the first drive shaft (22), the sector gear (24) being sleeved on the surface of the first drive shaft (22), and the electromagnet (25) being magnetically connected to the sector gear (24); A multi-point continuous detection mechanism (3), the multi-point continuous detection mechanism (3) comprising a transmission component (31), a detection component (32) and a longitudinal movement component (33), the transmission component (31) comprising a first transmission gear (313), a transverse transmission roller (314), a curved groove (315) and a longitudinal transmission wheel (316), the two transverse transmission rollers (314) being symmetrical about the stacking plate (9), the first transmission gear (313) being arranged on one side of the lower transverse transmission roller (314), the sector gear (24) being transmission-connected to the first transmission gear (313), the surface of the transverse transmission roller (314) being arranged with a curved groove (315), the surface of the frame assembly (1) being mounted with a ratchet (12), the first transmission gear (313) being meshed with the ratchet (12); The detection assembly (32) comprises an ultrasonic generator (321), an ultrasonic receiver (322), a curved tube (323), a straight rod (324), a coordinate sensor (327) and a CCD camera module (328); the ultrasonic generator (321) and the ultrasonic receiver (322) are respectively fixedly connected to the curved tube (323); one end of the straight rod (324) is slidably connected to the curved groove (315); one end of the straight rod (324) is movably connected to the curved tube (323); and the coordinate sensor (327) and the CCD camera module (328) are respectively arranged on both sides of the curved tube (323); The longitudinal moving assembly (33) comprises a pulley (331) and a shaped frame (332), the pulley (331) is fixedly connected to the shaped frame (332), the longitudinal transmission wheel (316) is slidably connected to the pulley (331), both sides of the shaped frame (332) are slidably connected to the frame assembly (1), and one end of the curved pipe (323) away from the straight rod (324) is movably sleeved on the surface of the shaped frame (332); The conveyor belt (41) further comprises a second transmission gear (43), the belt roller (42) is fixedly connected to the second transmission gear (43), and the driving gear (23) is transmission-connected to the second transmission gear (43); The ultrasonic wave generating element (321) and the ultrasonic wave receiving element (322) are both connected in communication with the ultrasonic wave detection body (7), and the ultrasonic wave detection body (7), the driving motor (21), the electromagnet (25), the coordinate sensor (327) and the CCD camera module (328) are all connected in communication with the computer control module (8).

2. A prefabricated concrete composite floor strength testing device according to claim 1, characterized in that: The device also includes a calibration component (5), wherein the calibration component (5) includes a flip plate (51), a pressure sensor (52), a drive motor (53) and a rotating shaft (54), wherein the pressure sensor (52) is fixedly connected to the flip plate (51), the drive motor (53) is connected to the rotating shaft (54), the flip plate (51) is fixedly connected to the rotating shaft (54), the frame assembly (1) is fixedly connected to the drive motor (53), and the computer control module (8) is communicatively connected to the pressure sensor (52).

3. The prefabricated concrete composite floor strength testing device according to claim 1, characterized in that: The surface of the longitudinal transmission wheel (316) is provided with a first curved track (3161) and a second curved track (3162) at intervals, and a plurality of the first curved tracks (3161) and the second curved tracks (3162) are symmetrical about the center of the longitudinal transmission wheel (316), and the pulley (331) is slidably connected between the first curved track (3161) and the second curved track (3162).

4. The prefabricated concrete composite floor strength testing device according to claim 1, characterized in that: The driving system (2) further comprises a key bar (221), a return spring (26) and a fixed seat (27); the surface of the first driving shaft (22) is provided with a key bar (221); the surface of the sector gear (24) is provided with a key slot; the key bar (221) is slidably connected to the key slot; the frame assembly (1) is fixedly connected to the fixed seat (27); the electromagnet (25) is embedded in the surface of the fixed seat (27); and the return spring (26) is connected between the sector gear (24) and the fixed seat (27).

5. The prefabricated concrete composite floor strength testing device according to claim 1, characterized in that: The transmission assembly (31) further comprises a first transmission shaft (311), a second transmission shaft (312) and a belt transmission part (317); the first transmission shaft (311) and the second transmission shaft (312) are both connected to the frame assembly (1); the two transverse transmission rollers (314) are respectively fixedly sleeved on the surfaces of the first transmission shaft (311) and the second transmission shaft (312); the first transmission gear (313) is fixedly connected to the first transmission shaft (311); and the belt transmission part (317) is connected between the first transmission shaft (311) and the second transmission shaft (312).

6. The prefabricated concrete composite floor strength testing device according to claim 1, characterized in that: The detection component (32) also includes a ball head (3241), a pressure spring (325), a collar (326) and a fixing plate (329); the ball head (3241) is fixedly connected to the straight rod (324); the curved groove (315) is slidably connected to the ball head (3241); the curved tube (323) is fixedly connected to the collar (326); the collar (326) is movably sleeved on the surface of the yoke (332); the surfaces of the curved tube (323) and the straight rod (324) are both fixedly connected with fixing plates (329); and the pressure spring (325) is connected between the two fixing plates (329).

7. A prefabricated concrete composite floor strength testing device according to claim 6, characterized in that: The longitudinal moving component (33) further comprises a balance plate (333) and a limit plate (334); the balance plate (333) is fixedly connected between the shaped frame (332) and the limit plate (334); a limit groove (11) is provided on the surface of the frame assembly (1); the balance plate (333) is slidably connected in the limit groove (11); and the limit plate (334) is in slidable contact with the surface of the frame assembly (1).

8. The prefabricated concrete composite floor strength testing device according to claim 1, characterized in that: It also comprises a deviation correction plate (6), the surface of which is connected to an elastic movable part (661), and the elastic movable part (661) is connected to the frame assembly (1).

9. A prefabricated concrete composite floor strength testing device according to claim 1, wherein a scraper (13) is installed on the surface of the frame assembly (1), and the surface of the composite plate (9) is in sliding contact with the scraper (13).

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