Concrete shrinkage laser measurement and maintenance integrated test box

Abstract

The invention relates to a concrete shrinkage laser determination and maintenance integrated test box, and relates to the technical field of concrete test detection, the concrete shrinkage laser determination and maintenance integrated test box comprises a hollow main box, the main box is internally provided with multiple groups of determination boxes with one sides extending to the outer surface of the main box, the determination boxes are internally provided with placing boxes, and the placing boxes are internally provided with limiting mechanisms and lifting mechanisms; the distance between two first limiting pieces and two second limiting pieces in the limiting mechanism can be adjusted to be equal in length and width of concrete blocks, the concrete blocks are limited when the concrete blocks are placed in the limiting mechanism, it is guaranteed that the concrete blocks are located at the same position on each placing table, and measurement uniformity is guaranteed; the first limiting piece and the second limiting piece are tightly attached to the side face of the concrete block, the lifting mechanism lifts the first limiting piece and the second limiting piece to scrape off water drops on the side face of the concrete block, and it is avoided that the water drops refract laser of the laser distance sensor to affect normal detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete test detection, in particular to a concrete shrinkage laser measurement and curing integrated test box. BACKGROUND

[0002] Concrete, commonly known as "concrete", is an engineering composite material in which the aggregate is cemented into a whole by cementitious materials. The commonly referred to concrete is cement concrete, which is a mixture of cement, sand and stone, water (may contain additives and admixtures), and is widely used in civil engineering and construction. The quality of concrete is crucial in construction, so when pouring in cold or hot weather, the shrinkage and expansion of concrete need to be detected to reserve a certain space during construction to avoid safety hazards, so a concrete deformation detection device is needed to detect the deformation of concrete.

[0003] The patent with publication number CN220819633U discloses a concrete shrinkage test device, which can obtain the shrinkage value of the concrete sample in real time. The first touch sensor monitors the contact with the concrete sample in real time, the control module controls the driving member to drive the sliding platform and the concrete sample thereon to maintain contact with the fixed plate. The laser ranging sensor monitors the shrinkage data information of the concrete sample in real time and transmits the data information to the control module, which displays the data information through the touch display.

[0004] However, the above prior art has the following technical defects: First, this prior art directly places the concrete block on the sliding platform for measurement. However, generally, multiple concrete blocks of the same size need to be measured to ensure the accuracy of the measurement results. In order to ensure uniformity, the concrete blocks need to be placed at the same position on the sliding platform. However, there are no components on the sliding platform to ensure the uniformity of the positions of the concrete blocks placed before and after, thereby increasing the measurement error in the later stage.

[0005] Second, in order to measure the expansion value of the concrete block under different humidity environments, the device needs to be placed in different humidity environments for testing. During the experiment, high humidity can cause water droplets to adhere to the side of the concrete block. When the laser of the laser ranging sensor shines on the water droplets, refraction occurs, affecting the measurement results.

[0006] Therefore, on the basis of the existing technology, there is still room for improvement to overcome the above technical defects. SUMMARY

[0007] To solve the above problems, the present application provides a concrete shrinkage laser measurement and curing integrated test box, which adopts the following technical solution: It comprises a main box with a hollow interior.

[0008] The main box is internally provided with multiple groups of measuring boxes extending to the outer surface of the main box, a placing box is slidably arranged in the measuring box, a placing table and a limiting mechanism for laterally limiting the concrete block placed on the placing table are arranged in the placing box, the limiting mechanism comprises two limiting pieces one and two which are relatively movable to adjust the spacing, the two limiting pieces one are horizontally arranged on the placing table, and the two limiting pieces two are vertically arranged on the placing table.

[0009] Further comprising a lifting mechanism arranged in the placing box and used for driving the limiting pieces one and two to lift, the limiting mechanism and the lifting mechanism cooperate to lift the limiting pieces one and two close to the side surface of the concrete block to scrape off the water droplets on the side surface of the concrete block before measurement.

[0010] Preferably, the measuring box is internally provided with an electric cylinder two used for driving the placing box to extend or retract.

[0011] Preferably, a group of sliding rods are installed between the inner walls of the measuring box below the placing box, and a sliding seat connected with the placing box is slidably arranged on the sliding rods.

[0012] Preferably, further comprising a driving mechanism for adjusting the positions of the limiting pieces one and two, the driving mechanism comprises two groups of electromagnets arranged in the placing table, one group of the electromagnets is horizontally arranged and corresponds to the two limiting pieces one, and the other group of the electromagnets is vertically arranged and corresponds to the two limiting pieces two, and the driving mechanism further comprises a driving assembly for adjusting the spacing of the horizontal electromagnets or the vertical electromagnets.

[0013] Preferably, an iron block one aligned with the outer side surface of the limiting piece one is installed above the adjacent horizontal electromagnet, and an iron block two aligned with the outer side surface of the limiting piece two is installed above the adjacent vertical electromagnet, and the electromagnet can generate a magnetic force with the corresponding iron block one or iron block two when electrified.

[0014] Preferably, the lifting mechanism comprises multiple groups of electric cylinders one, each group of the electric cylinders one is arranged on one side of the corresponding limiting piece one or limiting piece two, and the upper end of the corresponding group of the electric cylinders one of the limiting piece one or limiting piece two is installed with a connecting frame connected therewith.

[0015] Preferably, the lifting mechanism further comprises a rectangular rod installed on the upper side of the placing table, a lower end of the electric cylinder one connected with the limiting piece one is installed with a sliding block one sliding on the rectangular rod, and a lower end of the electric cylinder one connected with the limiting piece two is installed with a sliding block two sliding on the rectangular rod.

[0016] Preferably, a laser distance sensor facing the center of the placing box is installed at the center of two adjacent inner walls of the placing box, and a controller is installed on the outer side surface of the main box.

[0017] Preferably, a horizontal pipe is installed at the center of the top surface of the determination box, and a downward spray head is installed on the side of the horizontal pipe.

[0018] Preferably, a heating rod is installed on the top surface of the determination box, and a temperature sensor is installed on the inner wall of the placing box.

[0019] In summary, the present application has at least one of the following beneficial technical effects: First, the present application is provided with multiple determination boxes, and each determination box is provided with a spacing-adjustable limiting mechanism. The spacing between the two limiting pieces one and the two limiting pieces two in the limiting mechanism can be adjusted to be the same as the length and width of the concrete block. When the concrete block is placed, the limiting mechanism limits the concrete block to ensure that the concrete block on each placing table is in the same position, ensuring the uniformity of the measurement. Moreover, multiple determination boxes are provided, so that multiple concrete blocks can be measured at one time, improving the measurement efficiency. Moreover, the limiting mechanism in each determination box can be independently adjusted, so that multiple concrete blocks of different lengths and widths can also be measured at one time, increasing the application range of the device.

[0020] Second, the limiting mechanism and the lifting mechanism cooperate to make the limiting piece one and the limiting piece two tightly adhere to the side surface of the concrete block before each detection of the laser distance sensor, and the limiting piece one and the limiting piece two are lifted by the lifting mechanism to scrape off the water droplets on the side surface of the concrete block, avoiding the refraction of the laser of the laser distance sensor by the water droplets and affecting the normal detection.

[0021] Third, the inner side surface of the limiting piece one and the limiting piece two in the limiting mechanism is also provided with a water-absorbing sponge, which can completely absorb the residual water stains on the side surface of the concrete block during the water scraping process, ensuring thorough cleaning. When the limiting piece one and the limiting piece two are driven away from the concrete block by the subsequent driving mechanism, the energized electromagnet will cause the pressing plate to squeeze the water-absorbing sponge to clean the water inside. At this time, the sponge is in a compressed state, and the water in the determination box will not enter the water-absorbing sponge during the subsequent water spraying process of the spray head. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below in conjunction with the drawings and examples.

[0023] Figure 1 is a structural schematic diagram of the present application.

[0024] Figure 2 is a side view of the present application.

[0025] Figure 3 is a working state structural schematic diagram of the present application.

[0026] Figure 4 is a structural schematic diagram of the determination box of the present application.

[0027] Figure 5is the sectional view of the determination box of the present application.

[0028] Figure 6 is the schematic diagram of the main body structure of the present application.

[0029] Figure 7 is the schematic diagram of the lifting mechanism structure of the present application.

[0030] Figure 8 is the schematic diagram of the first part of the lifting mechanism structure of the present application.

[0031] Figure 9 is the schematic diagram of the second part of the lifting mechanism structure of the present application.

[0032] Figure 10 is the schematic diagram of the driving mechanism structure of the present application.

[0033] Figure 11 is the schematic diagram of the limiting mechanism structure of the present application.

[0034] Figure 12 is the side view of the limiting mechanism of the present application.

[0035] Figure 13 is the schematic diagram of the water absorption assembly structure of the present application.

[0036] Figure 14 is the side view of the water absorption assembly of the present application.

[0037] Figure: 1, main box; 2, limiting mechanism; 201, limiting piece one; 202, limiting piece two; 203, water absorption sponge; 204, pressing plate; 205, pressure sensor; 206, iron block one; 207, iron block two; 208, L-shaped connecting rod; 209, U-shaped rod; 210, iron block three; 211, rectangular block; 212, spring; 3, lifting mechanism; 301, rectangular rod; 302, sliding block one; 303, sliding block two; 304, electric cylinder one; 305, connecting frame; 306, support frame; 4, driving mechanism; 401, two-way screw one; 402, threaded seat one; 403, two-way screw two; 404, threaded seat two; 405, electromagnet; 406, motor; 5, determination box; 6, placing box; 7, placing table; 8, laser distance sensor; 9, sliding rod; 10, sliding seat; 11, electric cylinder two; 12, cross pipe; 13, spray head; 14, heating rod; 15, temperature sensor; 16, humidity sensor; 17, controller; 18, water supply pipe; 19, electromagnetic valve. DETAILED DESCRIPTION

[0038] The following Figure 1 - Figure 14 The embodiments of the present application are described in detail.

[0039] The embodiment of the application discloses a concrete shrinkage laser measurement maintenance integrated test box, which is provided with multiple measurement boxes, and a spacing-adjustable limiting mechanism is arranged in each measurement box, the spacing between the two limiting sheets one and the two limiting sheets two in the limiting mechanism can be adjusted to be the same as the length and width of the concrete block, the limiting mechanism is used for limiting the concrete block when the concrete block is placed, the concrete block on each placement table is ensured to be in the same position, the uniformity of measurement is ensured, multiple measurement boxes are arranged, thus multiple concrete blocks can be measured at a time, the measurement efficiency is improved, and the limiting mechanism in each measurement box can be independently adjusted, thus multiple concrete blocks with different length and width can also be measured at a time, and the application range of the device is increased.

[0040] Embodiment one:

[0041] As shown in Figure 1 , Figure 3 and Figure 4 , the device comprises a main box 1 with a hollow interior, a plurality of measurement boxes 5 extending to the outer surface of the main box 1 are arranged in the interior of the main box 1, a placement box 6 extending to the outer surface of the measurement box 5 and having an open upper side is slidably arranged in the measurement box 5, a placement table 7 with a hollow interior is arranged at the center of the bottom surface of the placement box 6, the placement box 6 is first moved out of the measurement box 5, the concrete block is placed on the placement table 7 through the opening of the placement box 6, and then the placement box 6 is sent back into the measurement box 5.

[0042] As shown in Figure 4 and Figure 5 , a group of slide rods 9 are arranged between the inner walls of the measurement box 5 below the placement box 6, a slide base 10 connected with the placement box 6 is slidably arranged on the slide rods 9, an electric cylinder two 11 is arranged between the two slide rods 9 in the measurement box 5, the extension arm end of the electric cylinder two 11 extends to the outside of the measurement box 5 and is connected with the side surface of the placement box 6, the extension of the electric cylinder two 11 can drive the placement box 6 to extend out of the measurement box 5, and the moving placement box 6 drives the slide base 10 to slide on the slide rods 9, and the retraction of the electric cylinder two 11 drives the placement box 6 to return to the measurement box 5.

[0043] As shown in Figure 4 and Figure 5 , two adjacent inner walls of the placement box 6 are each provided with a laser distance sensor 8 facing the center of the placement box 6, a controller 17 with a display is arranged on the outer surface of the main box 1, the laser distance sensor 8 is electrically connected with the controller 17, the distance from the two laser distance sensors 8 to the side surface of the concrete block is measured, and the result is sent to the controller 17 for display on the display, when the concrete block shrinks, the volume of the concrete block changes, and then the distance between the laser distance sensor 8 and the concrete block changes, and the change amount before and after is the shrinkage value of the concrete block.

[0044] As shown in Figure 4 and Figure 5As shown in the figure, the top center of the determination box 5 is provided with a horizontal pipe 12, the side of the horizontal pipe 12 is provided with a downward spray head 13, the input end of the horizontal pipe 12 extends to the outside of the main box 1 and is jointly provided with a water supply pipe 18, the water supply pipe 18 is connected with the external water supply end, and the water in the water supply pipe 18 enters the horizontal pipe 12 and is sprayed by each spray head 13 into the determination box 5, so as to adjust the humidity in the determination box 5 and realize the environmental curing in the determination box 5, and then the shrinkage value of the concrete under different humidity can be determined.

[0045] As shown in the figure, Figure 2 and Figure 4 The inner wall of the placing box 6 is also provided with a humidity sensor 16, and each horizontal pipe 12 is provided with an electromagnetic valve 19 near the water supply pipe 18, and the humidity sensor 16 and the electromagnetic valve 19 are electrically connected with the controller 17, and the humidity sensor 16 on each placing box 6 corresponds to the electromagnetic valve 19 on the horizontal pipe 12 in the corresponding determination box 5, when the humidity sensor 16 detects that the humidity in the determination box 5 reaches a predetermined value, it sends a signal to the controller 17, and the controller 17 controls the corresponding electromagnetic valve 19 of the humidity sensor 16 to close, and then stops the spray head 13 from continuing to spray water into the determination box 5.

[0046] As shown in the figure, Figure 4 The placing box 6 is provided with a limiting mechanism 2 for limiting the lateral position of the concrete block placed on the placing table 7 and a lifting mechanism 3 for cleaning the water droplets on the side surface of the concrete block.

[0047] As shown in the figure, Figure 6 and Figure 7 The limiting mechanism 2 includes two limiting pieces one 201 and two limiting pieces two 202 which can move relatively to adjust the distance, the two limiting pieces one 201 are transversely arranged on the placing table 7, and the two limiting pieces two 202 are longitudinally arranged on the placing table 7, the limiting pieces two 202 are located below the limiting pieces one 201, the distance between the two limiting pieces one 201 is adjusted to be the same as the length of the concrete block, and the distance between the two limiting pieces two 202 is adjusted to be the same as the width of the concrete block, so that when the concrete block is placed subsequently, the limiting pieces one 201 and the limiting pieces two 202 limit the concrete block on each placing table 7 to be in the same position, ensuring the accuracy of the measurement.

[0048] As shown in the figure, Figure 10 and Figure 12As shown, the device also includes a driving mechanism 4 for adjusting the positions of the limit pieces one 201 and the limit pieces two 202, the driving mechanism 4 includes two groups of electromagnets 405 arranged inside the placing table 7, one group of the electromagnets 405 is arranged horizontally, and the other group is arranged vertically, the outer side of the limit piece one 201 is provided with an iron block one 206 arranged above the corresponding horizontal electromagnet 405, and the outer side of the limit piece two 202 is provided with an iron block two 207 arranged above the corresponding vertical electromagnet 405, the electromagnets 405 are powered, the horizontal electromagnets 405 generate magnetic torque with the two iron blocks one 206 on the limit piece one 201, and the vertical electromagnets 405 generate magnetic torque with the two iron blocks two 207 on the limit piece two 202.

[0049] The surfaces of the iron block one 206 and the iron block two 207 are coated with an anti-rust coating.

[0050] As shown, Figure 10 the driving mechanism 4 also includes a driving assembly for adjusting the spacing of the horizontal electromagnets 405 or the vertical electromagnets 405, so that adjusting the spacing of the horizontal electromagnets 405 can adjust the spacing of the two limit pieces one 201 through magnetic torque, and adjusting the spacing of the vertical electromagnets 405 can adjust the spacing of the two limit pieces two 202.

[0051] As shown, Figure 10 the driving assembly includes a bidirectional screw two 403 rotatably arranged between the inner walls of the placing table 7 below the horizontal electromagnets 405, and the bidirectional screw two 403 is provided with a threaded seat two 404 on each thread, which is connected with the horizontal electromagnet 405 on the same side, and the bidirectional screw two 403 is reversed to drive the two horizontal electromagnets 405 to move closer to or farther away from each other through the two threaded seats two 404.

[0052] As shown, Figure 10 the bidirectional screw one 401 is rotatably arranged between the inner walls of the placing table 7 below the vertical electromagnets 405 and above the bidirectional screw two 403, and the bidirectional screw one 401 is provided with a threaded seat one 402 on each thread, which is connected with the vertical electromagnet 405 on the same side, and the bidirectional screw one 401 is reversed to adjust the spacing of the two vertical electromagnets 405 through the two threaded seats one 402.

[0053] As shown, Figure 10 the side of the placing table 7 is provided with a motor 406 having a driving end connected with one end of the bidirectional screw one 401 and the bidirectional screw two 403, the outer side of the motor 406 is provided with a waterproof cover (not shown), and the motor 406 is electrically connected with the controller 17, and all the motors 406 are controlled by the controller 17 to ensure that the spacing of each group of limit pieces one 201 and the spacing of each group of limit pieces two 202 in the device are uniform.

[0054] The inner side of one of the limiting pieces 201 and the limiting piece 202 in each group is embedded with a distance sensor (not shown) facing the other limiting piece 201 or the limiting piece 202 in the group, and is electrically connected to the controller 17. The distance between the limiting pieces 201 in each group can be clearly known through the distance sensor, ensuring the accuracy of the distance adjustment.

[0055] In summary, the distance between the limiting pieces 201 and the limiting piece 202 in each group is adjusted by the driving mechanism 4 until the length and width of the concrete block are the same. Then the electric cylinder 11 is extended to move the placement box 6 out of the measuring box 5, and the concrete block is placed in the inner side area of the limiting piece 201 and the limiting piece 202 on the placement table 7. The limiting piece 201 and the limiting piece 202 limit all the concrete blocks on the placement table 7 to be in the same area, ensuring uniformity. Then the electric cylinder 11 is shortened to retract the placement box 6 into the measuring box 5. Then the driving mechanism 4 drives each group of limiting pieces 201 and limiting pieces 202 to move away from each other to release the limiting of the concrete block. The nozzle 13 sprays into the measuring box 5 to adjust the humidity in the measuring box 5. When the predetermined humidity is reached, the water spraying is stopped. In the predetermined measurement period, the laser distance sensor 8 measures the side distance of the concrete block at fixed intervals and sends the results to the display screen of the controller 17 for display. The worker can clearly know the shrinkage value of the concrete block.

[0056] As shown in Figure 11 The inner side of the limiting piece 201 and the limiting piece 202 is embedded with a pressure sensor 205 above the slot. The pressure sensor 205 corresponds to the electromagnet 405 below the same side. When the pressure sensor 205 is subjected to a constant pressure, the corresponding electromagnet 405 is de-energized.

[0057] When the two limiting pieces 201 and the limiting piece 202 in each group are adjusted by the driving mechanism 4 to closely adhere to the side surface of the concrete block, the side surface position of the concrete block changes due to shrinkage. When the limiting piece 201 is attached to the concrete block, the other limiting piece 201 has not been attached yet, which will cause the limiting piece 201 attached to the concrete block to squeeze the concrete block and cause the pressure sensor 205 on it to be subjected to pressure. When the pressure reaches a constant value, a signal is sent to the controller 17. The controller 17 controls the electromagnet 405 corresponding to the pressure sensor 205 to be closed and not to generate a magnetic torque, so that the limiting piece 201 attached to the concrete block will not continue to move.

[0058] And in another limit sheet 201 after the paste on the concrete block on its pressure sensor 205 by the fixed value of the pressure after the corresponding solenoid 405, when the same group of solenoids 405 are all closed, the controller 17 control this group of solenoids 405 corresponding to the two-way screw rod two 403 stop rotating, two limit sheet two 202 paste on the concrete block on its principle is the same as the above method, after all the limit sheet two 202 paste, the controller 17 control two-way screw rod one 401 stop rotating.

[0059] In contrast, the two-way screw rod two 403 reverse drive two screw seat two 404 drive horizontal solenoid 405 away from each other, when the horizontal solenoid 405 power, when the horizontal solenoid 405 close to the iron block one 206, the two will re generate magnetic force torque, and the moving horizontal solenoid 405 will drive the limit sheet one 201 away from the concrete block, reverse two-way screw rod one 401 also let limit sheet two 202 away from the concrete block.

[0060] As shown in Figures 7-9 The lifting mechanism 3 includes a plurality of groups of electric cylinder one 304, each group of electric cylinder one 304 is arranged on the side of the corresponding limit sheet one 201 or limit sheet two 202, the upper end of the corresponding group of electric cylinder one 304 of the limit sheet one 201 or limit sheet two 202 is provided with a connecting frame 305 connected therewith, the upper side of the limit sheet one 201 and the limit sheet one 201 is inclined to the outside, after the limit sheet one 201 and the limit sheet two 202 are pasted on the side of the concrete block, let all the electric cylinder one 304 elongate, drive the limit sheet one 201 and the limit sheet two 202 upward through the connecting frame 305, use the limit sheet one 201 or limit sheet two 202 to scrape the water droplets on the corresponding side of the concrete block, and the upper side is inclined to the outside, so that the scraped water droplets fall from the outside of the limit sheet one 201 or limit sheet two 202, when the electric cylinder one 304 is elongated to the longest, immediately retract to the shortest, drive the limit sheet one 201 and the limit sheet two 202 to restore the position, realize the cleaning of the water droplets on the side of the concrete block, avoid the adhesion of the water droplets on the side of the concrete block to refract the laser of the laser distance sensor 8.

[0061] The outer side of the electric cylinder one 304 is provided with a waterproof shell (not shown) matched therewith for waterproofing.

[0062] At the same time, the installation position of the laser distance sensor 8 is above the initial position of the limit sheet one 201 and the limit sheet two 202, so as to ensure that the limit sheet one 201 and the limit sheet two 202 can clean the water droplets in the detection area of the laser distance sensor 8.

[0063] As shown in Figure 7As shown, the lifting mechanism 3 further includes a rectangular rod 301 mounted on the upper side of the placement table 7, a slide block 302 sliding on the rectangular rod 301 is mounted at the lower end of the electric cylinder 304 connected with the limiting sheet 201, a slide block 303 sliding on the rectangular rod 301 is mounted at the lower end of the electric cylinder 304 connected with the limiting sheet 202, the limiting sheet 201 is driven to slide horizontally on the rectangular rod 301 by the electric cylinder 304 and the connecting frame 305, and the limiting sheet 202 drives the slide block 303 to slide vertically on the rectangular rod 301.

[0064] In summary, when the laser distance sensor 8 is turned on to measure the distance of the side surface of the concrete block, first, all the motors 406 are operated to drive each set of limiting sheet 201 and limiting sheet 202 to approach each other, so that the limiting sheet 201 and the limiting sheet 202 are attached to the side surface of the concrete block. Then, all the electric cylinders 304 are elongated to drive the limiting sheet 201 and the limiting sheet 202 to rise through the connecting frame 305. The limiting sheet 201 or the limiting sheet 202 is used to scrape off the water droplets on the corresponding side surface of the concrete, and the upper side is inclined outward, so that the scraped water droplets fall from the outside of the limiting sheet 201 or the limiting sheet 202, thereby achieving the cleaning of the water droplets on the side surface of the concrete block.

[0065] Example Two:

[0066] Based on example one, as shown in Figure 4 and Figure 5 , a heating rod 14 is installed on the top surface of the measuring box 5 on one side of the horizontal pipe 12, a temperature sensor 15 is installed on the inner wall of the placement box 6 on one side of the humidity sensor 16, the heating rod 14 and the temperature sensor 15 are electrically connected with the controller 17. The heating rod 14 is used to heat the inside of the measuring box 5, so that the shrinkage value of the concrete block under various temperatures can be measured, and the temperature sensor 15 is used to monitor the temperature inside the measuring box 5 in real time.

[0067] Example Three:

[0068] Based on example one, as shown in Figure 13 and Figure 14 , the limiting mechanism 2 further includes a water absorption assembly, the water absorption assembly includes a plurality of strip-shaped grooves opened on the inner side of the limiting sheet 201 and the limiting sheet 202 close to the bottom, a water absorption sponge 203 is installed on the inner bottom of the strip-shaped groove, and a pressing plate 204 is slidingly arranged above the water absorption sponge 203 in the strip-shaped groove. During the rising and falling of the limiting sheet 201 or the limiting sheet 202, the water droplets on the side surface of the concrete block are scraped off first, and then the water absorption sponge 203 is used to absorb the small water stains remaining on the side surface, thereby achieving complete cleaning of the water droplets on the side surface of the concrete block.

[0069] After the limit piece one 201 and the limit piece two 202 are away from the concrete block, the pressing plate 204 compresses the water absorption sponge 203 to squeeze out the water in it.

[0070] As shown in Figure 13 and Figure 14 , the iron block three 210 is slidably arranged on both sides of the iron block one 206 or the iron block two 207, the L-shaped connecting rod 208 is installed on the side surface of the iron block three 210, the U-shaped rod 209 extending into the strip-shaped groove and connected with the pressing plate 204 is installed on the upper side of the L-shaped connecting rod 208, when the water scraping is completed and the transverse electromagnet 405 or the longitudinal electromagnet 405 is away from each other to drive the limit piece one 201 or the limit piece two 202 to be away from each other, the electromagnet 405 is restarted to generate the magnetic torque with the iron block one 206 or the iron block two 207 again, the electromagnet 405 also attracts the iron block three 210 on both sides of the iron block one 206 or the iron block two 207 to descend through the magnetic force, and then the pressing plate 204 is driven to descend through the L-shaped connecting rod 208 and the U-shaped rod 209, and the water absorption sponge 203 is compressed to squeeze out the water in it.

[0071] As shown in Figure 13 and Figure 14 , a group of springs 212 are installed on the lower side of the L-shaped connecting rod 208, the lower end of each spring 212 is installed with a rectangular block 211 connected with the limit piece one 201 or the limit piece two 202, the descending L-shaped connecting rod 208 will compress the spring 212 in cooperation with the rectangular block 211, and after the magnetic force of the electromagnet 405 disappears, the spring 212 rebounds to drive the position of the pressing plate 204 to restore.

[0072] In summary, during the ascending and descending of the limit piece one 201 or the limit piece two 202, the water droplets on the side surface of the concrete block are scraped off first, and then the small water stains remaining on the side surface are absorbed by the water absorption sponge 203, so that the water droplets on the side surface of the concrete block are completely cleaned, when the water scraping is completed and the transverse electromagnet 405 or the longitudinal electromagnet 405 is away from each other to drive the limit piece one 201 or the limit piece two 202 to be away from each other, the electromagnet 405 is restarted to generate the magnetic torque with the iron block one 206 or the iron block two 207 again, the electromagnet 405 also attracts the iron block three 210 on both sides of the iron block one 206 or the iron block two 207 to descend through the magnetic force, and then the pressing plate 204 is driven to descend through the L-shaped connecting rod 208 and the U-shaped rod 209, and the water absorption sponge 203 is compressed to squeeze out the water in it, and the descending L-shaped connecting rod 208 also compresses the spring 212, and when the electromagnet 405 is powered off next time, the spring 212 rebounds to drive the pressing plate 204 to expand to restore the water absorption sponge 203.

[0073] The application also discloses a use method of the concrete shrinkage laser measuring and curing integrated test box. S1, spacing adjustment, according to the length and width of the concrete block, the spacing between each set of limiting sheet one 201 and limiting sheet two 202 is adjusted. Specifically, the bidirectional screw two 403 and bidirectional screw one 401 in each drive mechanism 4 are rotated, the two electromagnets 405 in the transverse group and the electromagnets 405 in the longitudinal group are driven to approach each other through the threaded seat two 404 and threaded seat one 402, at the same time, a corresponding set of two limiting sheet one 201 and two limiting sheet two 202 are driven to approach each other, until the spacing between the limiting sheet one 201 is the same as the length of the concrete block, and the spacing between the limiting sheet two 202 is the same as the width of the concrete block, then the adjustment can be stopped.

[0074] S2, put in the concrete block, the concrete block with the same length, width and height and smooth surface is cut in advance and put into each measuring box 5 in turn. Specifically, the electric cylinder two 11 is elongated to drive the placing box 6 to move out of the measuring box 5, the concrete block is placed on the placing table 7 inside the limiting sheet one 201 and limiting sheet two 202, and the limiting sheet one 201 and limiting sheet two 202 are used to limit all the concrete blocks on the placing table 7 to be in the same area, so as to ensure uniformity. Then the electric cylinder two 11 is shortened to drive the placing box 6 to retract into the measuring box 5, and then the drive mechanism 4 is used to drive each set of limiting sheet one 201 and limiting sheet two 202 to move away from each other to release the limiting of the concrete block.

[0075] S3, humidity adjustment, the humidity in the measuring box 5 is adjusted by spraying water into the measuring box 5 through the nozzle 13. Specifically, the water supply pipe 18 is connected with the external water supply end, the water in the water supply pipe 18 enters the horizontal pipe 12 and is sprayed into the measuring box 5 through each nozzle 13, so as to adjust the humidity in the measuring box 5. When the humidity sensor 16 detects that the humidity in the measuring box 5 reaches the predetermined value, it sends a signal to the controller 17, the controller 17 controls the corresponding electromagnetic valve 19 of the humidity sensor 16 to close, and then stops the corresponding nozzle 13 from continuing to spray water into the measuring box 5.

[0076] S4, water bead cleaning, the water bead on the side of the concrete block is cleaned by the lifting mechanism 3 cooperating with the limiting mechanism 2. Specifically, when the laser distance sensor 8 is turned on to measure the distance of the side of the concrete block, first, all the motors 406 are operated to drive each set of limiting sheet one 201 and limiting sheet two 202 to approach each other, so that the limiting sheet one 201 and limiting sheet two 202 are attached to the side of the concrete block. Then all the electric cylinders one 304 are elongated to drive the limiting sheet one 201 and limiting sheet two 202 to rise through the connecting frame 305, and the water bead on the corresponding side of the concrete block is scraped off by the limiting sheet one 201 or limiting sheet two 202, and the upper side is inclined outward, so that the scraped water bead falls from the outside of the limiting sheet one 201 or limiting sheet two 202, realizing the cleaning of the water bead on the side of the concrete block.

[0077] S5, distance measurement, the distance of the concrete block side is measured by the laser distance sensor 8 for many times, specifically, the distance of the concrete block side is measured by the laser distance sensor 8 at fixed interval time within a predetermined measurement period, and the result is sent to the display screen of the controller 17 for display, so that the staff can clearly know the shrinkage value of the concrete block.

[0078] It is apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments, and that the application can be implemented in other specific forms without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, whether viewed from any point of view.

[0079] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A concrete shrinkage laser measurement and curing integrated test box, comprising a main box (1) with a hollow interior, characterized in that: a plurality of measurement boxes (5) extending to one side of the outer surface of the main box (1) are arranged in the interior of the main box (1), a placing box (6) is slidably arranged in the measurement box (5), a placing table (7) and a limiting mechanism (2) for laterally limiting a concrete block placed on the placing table (7) are arranged in the placing box (6), the limiting mechanism (2) comprises two limiting pieces one (201) and two limiting pieces two (202) which are relatively movable to adjust the spacing, the two limiting pieces one (201) are horizontally arranged on the placing table (7), and the two limiting pieces two (202) are vertically arranged on the placing table (7); further comprising a lifting mechanism (3) arranged in the placing box (6) for driving the limiting pieces one (201) and the limiting pieces two (202) to lift, the limiting mechanism (2) and the lifting mechanism (3) cooperate to lift the limiting pieces one (201) and the limiting pieces two (202) close to the side surface of the concrete block by the lifting mechanism (3) before measurement to remove water droplets on the side surface of the concrete block.

2. The concrete shrinkage and laser curing integrated test chamber according to claim 1, characterized in that: An electric cylinder two (11) is arranged in the measurement box (5) for driving the placing box (6) to extend or retract.

3. The concrete shrinkage and laser-induced curing integrated test chamber according to claim 2, characterized in that: A set of slide rods (9) are installed between the inner walls of the measurement box (5) below the placing box (6), and a sliding seat (10) connected with the placing box (6) is slidably arranged on the slide rods (9).

4. The test chamber of claim 1, wherein: Further comprising a driving mechanism (4) for adjusting the positions of the limiting pieces one (201) and the limiting pieces two (202), the driving mechanism (4) comprises two groups of electromagnets (405) arranged in the interior of the placing table (7), one group of the electromagnets (405) is horizontally arranged and corresponds to the two limiting pieces one (201), and the other group of the electromagnets (405) is vertically arranged and corresponds to the two limiting pieces two (202), the driving mechanism (4) further comprises a driving assembly for adjusting the spacing of the horizontal electromagnets (405) or the vertical electromagnets (405).

5. The concrete shrinkage and laser curing integrated test chamber according to claim 4, characterized in that: An iron block one (206) aligned with the outer side of the limiting piece one (201) is installed above the adjacent horizontal electromagnet (405), and an iron block two (207) aligned with the outer side of the limiting piece two (202) is installed above the adjacent vertical electromagnet (405), the electromagnet (405) can generate a magnetic force with the corresponding iron block one (206) or iron block two (207) when energized.

6. The concrete shrinkage and laser curing integrated test chamber according to claim 1, characterized in that: The lifting mechanism (3) comprises a plurality of electric cylinder one (304), each group of electric cylinder one (304) is arranged on one side of the corresponding limiting piece one (201) or limiting piece two (202), and the upper end of the corresponding group of electric cylinder one (304) of the limiting piece one (201) or limiting piece two (202) is provided with a connecting frame (305) connected therewith.

7. The test chamber of claim 6, wherein: The lifting mechanism (3) further comprises a rectangular rod (301) installed on the upper side of the placing table (7), the lower end of the electric cylinder one (304) connected with the limiting piece one (201) is provided with a sliding block one (302) sliding on the rectangular rod (301), and the lower end of the electric cylinder one (304) connected with the limiting piece two (202) is provided with a sliding block two (303) sliding on the rectangular rod (301).

8. The concrete shrinkage and laser curing integrated test chamber according to claim 1, characterized in that: The two adjacent inner walls of the placing box (6) are each provided with a laser distance sensor (8) facing the center of the placing box (6), and the outer side of the main box (1) is provided with a controller (17).

9. The concrete shrinkage and laser curing integrated test chamber according to claim 1, characterized in that: The top center of the measuring box (5) is provided with a horizontal pipe (12), the side of the horizontal pipe (12) is provided with a downward nozzle (13), and the inner wall of the placing box (6) is further provided with a humidity sensor (16).

10. The concrete shrinkage and laser curing integrated test chamber according to claim 1, characterized in that: The top of the measuring box (5) is provided with a heating rod (14), and the inner wall of the placing box (6) is provided with a temperature sensor (15).

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