Concrete permeability coefficient detection device

Abstract

The invention discloses a concrete permeability coefficient detection device which comprises a detection box, a cover body capable of being opened and closed is arranged at the top end of the detection box, a water spraying assembly is arranged on the cover body, a sample groove is formed in the detection box, a plurality of rows of permeable holes are formed in the lower end of the sample groove at intervals, a partition plate is arranged in the detection box, and a plurality of filtering holes are formed in the partition plate; a water guide cylinder is arranged below the partition plate, and a measuring cylinder is placed at the lower end of the water guide cylinder; the anti-blocking assembly comprises a first telescopic motor arranged on the side wall of the detection box, an output shaft of the first telescopic motor is connected with a supporting frame, the supporting frame is located below the sample groove, a plurality of needle rods are arranged on the supporting frame at intervals, the diameter of the needle rods is smaller than that of the water permeable holes, and the water permeable holes are communicated with the supporting frame. And the top end of the needle rod is slightly lower than the water permeable hole. By arranging the needle rod, the first telescopic motor and the supporting frame, residues in the water permeable holes can be removed at any time, and the water permeable holes are prevented from being blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete testing equipment, and more specifically, to a concrete water permeability coefficient testing device. Background Art

[0002] Permeable concrete is also called porous concrete, sandless concrete, and permeable floor. It is a porous lightweight concrete made of aggregate, cement, reinforcing agent, and water. It does not contain fine aggregate. The surface of the coarse aggregate is covered with a thin layer of cement slurry and bonded to each other to form a honeycomb structure with evenly distributed holes. Therefore, it has the characteristics of air permeability, water permeability and light weight. In the process of permeable concrete processing and production, in order to detect its performance, the detection of water permeability coefficient is also one of the indicators. The patent with application number "202222345934.1" discloses a detection device for the water permeability coefficient of permeable concrete. The patent may have the problem of clogging of water permeable holes during the detection process, which affects the accuracy of the detection. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0004] Another object of the present invention is to provide a concrete water permeability coefficient detection device, which can remove residues in the water permeable hole at any time by arranging a needle rod, a first telescopic motor, and a support frame to avoid clogging the water permeable hole.

[0005] In order to achieve these purposes and other advantages of the present invention, a concrete water permeability coefficient detection device is provided, comprising:

[0006] A detection box, the top of which is provided with an openable cover, the cover is provided with a water spray assembly, a sample tank is provided in the detection box, a plurality of rows of water holes are provided at intervals at the lower end of the sample tank, each row of water holes includes a plurality of water holes, a partition plate is provided in the detection box, a plurality of filter holes are provided on the partition plate, a water guide cylinder is provided below the partition plate, and a measuring cylinder is placed at the lower end of the water guide cylinder;

[0007] An anti-clogging component includes a first telescopic motor arranged on the side wall of the detection box, the output shaft of the first telescopic motor is connected to a support frame, the support frame is located below the sample slot, a plurality of needle bars are arranged on the support frame at intervals, the plurality of needle bars are arranged in the water permeable hole one by one, and the diameter of the needle bar is smaller than the diameter of the water permeable hole, and the top of the needle bar is slightly lower than the water permeable hole.

[0008] Preferably, the horizontal cross-section of the detection box is rectangular.

[0009] Preferably, the diameter of the needle rod is smaller than the radius of the water permeable hole.

[0010] Preferably, a support frame with a rectangular horizontal surface is provided on the partition plate, the top of the support frame is connected to the sample slot, a vertical plate is provided in the support basket, a plurality of filter holes on the partition plate are divided into two groups, the vertical plate is provided between the two groups of filter holes, the top of the vertical plate is lower than the top of the support frame, wherein one of the relatively parallel side walls of the partition plate does not contact the detection box, and a slag cleaning port is provided at the lower part of the detection box;

[0011] A water guide mechanism, comprising two water guide plates hinged to the bottom of the sample slot, and two groups of driving components, the two water guide plates are respectively located on both sides of the vertical plate, the two groups of driving components are arranged one-to-one with the two water guide plates to drive the water guide plates to rotate, the driving component comprises a groove arranged on the side wall of the support frame, a spring arranged in the groove, and a retractable wheel arranged on the side wall of the detection box, the notch of the groove is arranged toward the vertical plate, the spring is connected to the corresponding water guide plate, a driving rope is wound around the retractable wheel, and the driving rope passes through the support frame and is connected to the water guide plate;

[0012] The slag discharge mechanism comprises two second telescopic motors arranged on the side walls of the detection box, the two second telescopic motors are arranged in one-to-one correspondence with the two groups of filter holes, the output shaft of the second telescopic motor seals and slides through the side wall of the support frame and extends into the support frame, the end of the output shaft of the second telescopic motor is connected with a scraper, the lower end of the scraper is in contact with the upper surface of the partition plate, and the scraper is perpendicular to the vertical plate, wherein two slag discharge ports are provided on the side wall of the support frame opposite to the scraper, the two slag discharge ports are arranged in one-to-one correspondence with the two scrapers, and an openable and closable cover is provided at the slag discharge port.

[0013] Preferably, a portion of the support frame located above the slag discharge port is provided with a sliding cavity, the sliding cavity is communicated with the slag discharge port, a first telescopic cylinder is provided at the top of the sliding cavity, a cover plate is connected to the end of the output shaft of the first telescopic cylinder, and the cover plate is sealingly and slidably connected to the sliding cavity.

[0014] Preferably, the side wall of the support frame opposite to the slag discharge port is recessed to form two accommodating grooves to respectively accommodate two scrapers.

[0015] Preferably, the water guiding cylinder comprises a vertical portion disposed below the partition plate, a water guiding portion with an upper end having a larger diameter than a lower end and connected to a lower end of the vertical portion, the measuring cylinder is detachably connected to the water guiding portion, and the horizontal cross-section of the vertical portion is a rectangle.

[0016] Preferably, two third telescopic motors are provided on the side wall of the detection box, and the output shaft of the third telescopic motor slides horizontally and seals through the vertical part and extends into the vertical part. The ends of the output shafts of the two third telescopic motors are commonly connected to a slag receiving box, and the horizontal cross-section of the slag receiving box is rectangular. A fourth telescopic motor is provided at the bottom end of the slag receiving box, and the end of the output shaft of the fourth telescopic motor is connected to an inclined plate, and a plurality of hole cleaning rods are arranged at intervals on the inclined plate, and the plurality of hole cleaning rods are arranged one-to-one corresponding to the plurality of filter holes in any group of filter holes. A slag removal port is provided on the side wall of the slag receiving box corresponding to the lower end of the inclined plate, and a chute is provided on the slag receiving box, and the chute is connected to the slag cleaning port. A second telescopic cylinder is provided in the chute, and a sealing plate is connected to the end of the second telescopic cylinder, and a plurality of drainage holes are arranged at intervals on the sealing plate, wherein the diameter of the hole cleaning rod is smaller than the diameter of the filter hole, and when the slag receiving box is located below one group of filter holes, the projection of the group of filter holes on the horizontal plane is in the slag receiving box.

[0017] Preferably, the inclined plate is sealingly and slidingly connected to the side wall of the slag receiving box.

[0018] The present invention has at least the following beneficial effects:

[0019] The present invention can clear the residue in the water permeable hole at any time by arranging a needle rod, a first telescopic motor and a support frame to avoid clogging the water permeable hole; the present invention can spray water into the sample slot by arranging a water spray assembly, and can filter the water by arranging a partition plate to avoid residue entering the measuring cylinder, thereby improving the accuracy of detection; the present invention can divide the partition plate into two groups of filter spaces by arranging a support frame and a vertical plate, and can realize that when one group of filter spaces is clearing residues, the other group of filter spaces is filtering by arranging two water guide plates, and can timely clear the residue on the filter holes by arranging a scraper and a residue cleaning port; the present invention can timely clear the residue on the filter holes without affecting the water permeability detection test, thereby improving the accuracy of detection; the present invention can clear the residue stuck in the filter hole by arranging a hole cleaning rod, and can further avoid small particles of residue entering the measuring cylinder by arranging a residue receiving box and a residue removing port, and can effectively guide water into the measuring cylinder through the drainage hole.

[0020] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a concrete water permeability coefficient detection device according to one of the technical solutions of the present invention;

[0022] Figure 2 for Figure 1 A magnified view of middle;

[0023] Figure 3 A schematic diagram of the structure of a partition plate according to one of the technical solutions of the present invention;

[0024] Figure 4 This is a schematic structural diagram of an anti-blocking component described in one of the technical solutions of the present invention;

[0025] Figure 5 This is a structural schematic diagram of a cover plate according to one of the technical solutions of the present invention;

[0026] Figure 6 This is a schematic structural diagram of a slag receiving box according to one of the technical solutions described in the present invention. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0028] like Figure 1-5 As shown, the present invention provides a concrete water permeability coefficient detection device, comprising:

[0029] The detection box 1 has a cover 24 that can be opened and closed at the top, and a water spray assembly is provided on the cover 24. The detection box 1 has a sample tank 2, and multiple rows of water holes 3 are provided at intervals at the lower end of the sample tank 2. Each row of water holes 3 includes multiple water holes 3. The detection box 1 has a partition plate 6, and multiple filter holes 7 are provided on the partition plate 6. A water guide cylinder is provided below the partition plate 6, and a measuring cylinder 18 is placed at the lower end of the water guide cylinder.

[0030] The anti-clogging component includes a first telescopic motor (the output shaft of the first telescopic cylinder is telescopic in the horizontal direction) 32 arranged on the side wall of the detection box 1, and the output shaft of the first telescopic motor 32 is connected to a support frame 5, and the support frame 5 is located below the sample slot 2. A plurality of needle rods 4 are arranged on the support frame 5 at intervals, and the plurality of needle rods 4 are arranged in the water permeable hole 3 one by one, and the diameter of the needle rod 4 is smaller than the diameter of the water permeable hole 3, and the top of the needle rod 4 is slightly lower than the water permeable hole 3.

[0031] In this technical solution, two support plates 22 are provided on the outer side wall of the detection box 1, and a third telescopic cylinder 23 is provided on the support plate 22. The end of the output shaft of the third telescopic cylinder 23 (the output shaft of the third telescopic motor 23 is telescopic in the vertical direction) is connected to the cover body 24 to drive the cover body 24 to move up and down. The water spray assembly includes a water tank provided on the cover body 24, a fifth telescopic motor 25 provided on the cover body 24 (the output shaft of the fifth telescopic cylinder extends vertically downward), a rod body connected to the end of the output shaft of the fifth telescopic motor 25, a bracket provided on the rod body, and a plurality of nozzles 26 provided on the bracket. A water outlet pipe is connected to the water tank, and a plurality of branch pipes are connected to the water outlet pipe, and the plurality of branch pipes are connected to the plurality of nozzles 26 in a one-to-one correspondence. The lower part of the side wall of the detection box 1 is provided with An opening is provided at the opening with an openable and closable lid, so as to facilitate taking out the measuring cylinder 18 (the opening is located at the lower part of the side wall of the detection box 1, and the opening is located opposite to the position of the measuring cylinder. In actual use, the measuring cylinder can be placed under the water-conducting cylinder first, and then the measuring cylinder can be moved upward so that the high end of the measuring cylinder is higher than the low end of the water-conducting cylinder, and then a pad is placed under the measuring cylinder to support the measuring cylinder) or observe the situation in the detection box 1. Specifically, the cover body 24 can be set as a transparent plate; the water flowing out of the filter hole 7 can enter the water-conducting cylinder; the needle rod 4 is vertically arranged; in order to ensure the detection accuracy of the concrete water permeability coefficient detection device, different amounts of water (without adding concrete samples) can be sprayed into the sample slot 2, and then the amount of water collected in the measuring cylinder 18, the outflow time, etc. are observed to judge the error.

[0032] During use, the third telescopic cylinder 23 is started, the cover 24 is opened, the concrete sample is placed in the sample slot 2, and water is sprayed toward the concrete sample through the water spray assembly. The water enters the measuring cylinder 18 from the water permeable hole 3 and the filter hole 7. The water permeability coefficient is calculated based on the amount of water collected in the measuring cylinder 18. During use, the first telescopic motor 32 can be started to drive the support frame 5 to reciprocate, thereby driving the needle rod 4 to reciprocate in the horizontal direction to avoid clogging of the water permeable hole 3.

[0033] By adopting this technical solution, the present invention realizes clearing the residue in the water permeable hole 3 at any time by setting the needle rod 4, the first telescopic motor 32, and the support frame 5 to avoid clogging the water permeable hole 3; the present invention realizes spraying water into the sample slot 2 by setting the water spray component, and realizes filtering the water by setting the partition plate 6 to prevent the residue from entering the measuring cylinder 18, thereby improving the accuracy of the detection.

[0034] In another technical solution, the horizontal cross section of the detection box 1 is a rectangle. This technical solution improves the stability of the device.

[0035] In another technical solution, the diameter of the needle rod 4 is smaller than the radius of the water permeable hole 3. With this technical solution, it is convenient to remove the residue in the water permeable hole 3 at any time.

[0036] In another technical solution, a support frame 8 with a rectangular horizontal surface is provided on the partition plate 6, the support frame 8 is fixedly connected to the partition plate 6, the top of the support frame 8 is connected to the sample slot 2, a vertical plate 14 is provided in the support basket, the multiple filter holes 7 on the partition plate 6 are divided into two groups, the vertical plate 14 is provided between the two groups of filter holes 7, the top of the vertical plate 14 is lower than the top of the support frame 8, wherein one of the relatively parallel side walls of the partition plate 6 does not contact the detection box 1, and a slag cleaning port is provided at the lower part of the detection box 1, and an openable and closable closing plate is provided at the slag cleaning port;

[0037] A water guide mechanism, which includes two water guide plates 11 hinged at the bottom end of the sample slot 2, and two groups of driving components. The two water guide plates 11 are respectively located on both sides of the vertical plate 14. The two groups of driving components are arranged in a one-to-one correspondence with the two water guide plates 11 to drive the water guide plates 11 to rotate. The driving component includes a groove 9 arranged on the side wall of the support frame 8, a spring 10 arranged in the groove 9, and a retracting wheel 12 arranged on the side wall of the detection box 1 (two third rotating motors are arranged in the detection box 1, and the output shafts of the two third rotating motors are connected to the two retracting wheels 12 in a one-to-one correspondence to drive the retracting wheels 12 to rotate). The notch of the groove 9 is arranged toward the vertical plate 14, the spring 10 is connected to the corresponding water guide plate 11, and a driving rope 13 is wound around the retracting wheel 12, and the driving rope 13 passes through the support frame 8 and is connected to the water guide plate 11;

[0038] The slag discharge mechanism includes two second telescopic motors 33 arranged on the side walls of the detection box 1, and the two second telescopic motors 33 are arranged in a one-to-one correspondence with the two groups of filter holes 7. The output shaft of the second telescopic motor 33 (the output shaft of the second telescopic motor extends horizontally) seals and slides through the side wall of the support frame 8 and extends into the support frame 8. The end of the output shaft of the second telescopic motor 33 is connected with a scraper 34, and the lower end of the scraper 34 contacts the upper surface of the partition plate 6. The scraper 34 is perpendicular to the vertical plate 14 (the top of the vertical plate 14 can be specifically provided with a first sealing strip, and the three sides of the water guide plate 11 that are not hinged to the sample slot 2 are provided with second sealing strips. During use, the first sealing strip abuts against the second sealing strip to prevent water from leaking from between the water guide plate 11 and the vertical plate 14). Two slag discharge ports are arranged on the opposite side walls, and the two slag discharge ports are arranged one-to-one with the two scrapers 34. The slag discharge ports are provided with an openable cover plate 36. When the residue needs to be removed, the group of filter holes 7 that need to be removed rotates the retracting wheel 12. Under the elastic force of the spring 10, the spring 10 drives the water guide plate 11 to move toward the top of the vertical plate 14 until the lower end of the water guide plate 11 contacts the upper end of the vertical plate 14. At this time, the water guide plate closes the space above the group of filter holes 7, and the second telescopic motor 33 is started to drive the scraper 34 to move on the filter holes to realize the slag removal process of the group of filter holes. The water guide plate 11 corresponding to the other group of filter holes 7, under the action of the retracting wheel 12, the water guide plate 11 is attached to the side wall of the support frame 8. At this time, one group of filter holes 7 is removing the residue, while the other group of filter holes 7 can perform the filtering operation normally. By adopting this technical solution, the present invention divides the partition plate 6 into two groups of filter spaces by providing a support frame 8 and a vertical plate 14, and by providing two water guide plates 11, one group of filter spaces is filtering while the other group of filter spaces is clearing residues, and by providing a scraper 34 and a residue discharge port, the residues on the filter holes 7 can be removed in time. The present invention can remove the residues on the filter holes 7 in time without affecting the water permeability detection test, thereby improving the accuracy of the detection.

[0039] In another technical solution, the support frame 8 is provided with a sliding cavity at the part above the slag discharge port, the sliding cavity is connected to the slag discharge port, a first telescopic cylinder 35 is provided at the top of the sliding cavity, a cover plate 36 is connected to the end of the output shaft of the first telescopic cylinder 35 (the output shaft of the first telescopic cylinder 35 is telescopic in the vertical direction), and the cover plate 36 is sealingly slidably connected to the sliding cavity. With this technical solution, the residue on the partition plate can be removed at any time to avoid affecting the water permeability of the filter hole 7.

[0040] In another technical solution, the side wall of the support frame 8 opposite to the slag discharge port is recessed to form two receiving grooves (the receiving groove is opposite to the slag discharge port, the receiving groove and the second telescopic motor 33 are located on the same side, and when the scraper 34 is located in the corresponding receiving groove, the surface of the scraper 34 is flush with the side wall of the support frame 8 where the receiving groove is located) to respectively accommodate the two scrapers 34. This technical solution is used to accommodate the scrapers 34 to reduce the impact of the scrapers 34 on the water flow when water seeps through.

[0041] In another technical solution, the water guide cylinder includes a vertical portion 16 disposed below the partition plate 6, a water guide portion 17 with a larger upper diameter than a lower diameter and connected to the lower end of the vertical portion 16, a water guide pipe connected to the lower end of the water guide portion, a diameter of the measuring cylinder 18 is larger than the diameter of the water guide pipe, and a horizontal cross section of the vertical portion 16 is rectangular. This technical solution facilitates water diversion into the measuring cylinder 18.

[0042] In another technical solution, two third telescopic motors (the output shaft of the third telescopic motor extends in the horizontal direction) 15 are provided on the side wall of the detection box 1, and the output shaft of the third telescopic motor 15 slides horizontally and seals through the vertical portion 16 and extends into the vertical portion 16 (the two third telescopic motors 15 are respectively arranged near different side walls of the vertical portion 16, as shown in the attached Figure 6As shown), the ends of the output shafts of the two third telescopic motors 15 are commonly connected to a slag receiving box 19 (the top of the slag receiving box 19 is slidably connected to the lower surface of the partition plate 6 in the horizontal direction), the horizontal cross-section of the slag receiving box 19 is rectangular, and the bottom end of the slag receiving box 19 is provided with a fourth telescopic motor 40, and the end of the output shaft of the fourth telescopic motor 40 (the output shaft of the fourth telescopic motor 40 is telescoped in the vertical direction) is connected to an inclined plate 20, and a plurality of hole cleaning rods 21 are spaced apart on the inclined plate 20, and the plurality of hole cleaning rods 21 are connected to any The plurality of filter holes 7 in a group of filter holes 7 are arranged one by one, the side wall of the slag receiving box 19 corresponding to the lower end of the inclined plate 20 is provided with a slag removal port, the slag receiving box 19 is provided with a chute 29, the chute 29 is communicated with the slag removal port 27, a second telescopic cylinder (the output shaft of the second telescopic cylinder is telescopic in the vertical direction) 30 is arranged in the chute 29, the end of the second telescopic cylinder 30 is connected to a sealing plate 31, and a plurality of drainage holes are arranged on the sealing plate 31 at intervals, wherein the hole cleaning rod 21 The diameter of the filter hole 7 is smaller than the diameter of the filter hole 7. When the slag box 19 is located below one group of filter holes 7, the projection of the group of filter holes 7 on the horizontal plane is in the slag box 19. When it is necessary to remove the slag in the filter holes 7 during the detection process, the slag box 19 is moved to below the filter holes 7 where slag needs to be removed (in actual use, there will be a little residue in the slag box 19 after the concrete water permeability coefficient detection device has been used for a period of time), the sealing plate 31 closes the slag removal port, and the fourth telescopic motor 40 is started to drive the inclined plate 20 upward Move the hole cleaning rod 21 to the corresponding filter hole 7 to clean the hole, water enters the measuring cylinder from the drainage hole, and a small amount of residue may fall on the inclined plate 20, which can further reduce the residue entering the measuring cylinder. When the detection device needs to be cleaned (no concrete sample is placed at this time), the second telescopic cylinder 30 drives the sealing plate to move upward to open the slag removal port, and then flushes water into the sample tank 2. The residue on the inclined plate 20 is discharged from the slag removal port into the water guide part (a slag receiving bucket can be placed under the water guide part at this time) and enters the detection box 1. With this technical solution, the present invention realizes the removal of the residue stuck in the filter hole 7 by setting the hole cleaning rod 21. By setting the slag receiving box 19 and the slag removal port, on the one hand, small particles of residue can be further prevented from entering the measuring cylinder 18, and on the other hand, water is introduced into the measuring cylinder 18 through the drainage hole.

[0043] In another technical solution, the inclined plate 20 is sealed and slidably connected to the side wall of the slag receiving box 19. With this technical solution, it is reduced that the residue enters below the inclined plate 20 and affects the normal use of the fourth telescopic motor 40.

[0044] The number of devices and processing scales described here are used to simplify the description of the present invention. The application, modification and variation of the concrete water permeability coefficient detection device of the present invention will be obvious to those skilled in the art.

[0045] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A device for detecting water permeability of concrete, characterized in that: include: A detection box, the top of which is provided with an openable cover, the cover is provided with a water spray assembly, a sample tank is provided in the detection box, a plurality of rows of water holes are provided at intervals at the lower end of the sample tank, each row of water holes includes a plurality of water holes, a partition plate is provided in the detection box, a plurality of filter holes are provided on the partition plate, a water guide cylinder is provided below the partition plate, and a measuring cylinder is placed at the lower end of the water guide cylinder; An anti-clogging component includes a first telescopic motor arranged on the side wall of the detection box, the output shaft of the first telescopic motor is connected to a support frame, the support frame is located below the sample slot, a plurality of needle bars are arranged on the support frame at intervals, the plurality of needle bars are arranged in the water permeable hole one by one, and the diameter of the needle bar is smaller than the diameter of the water permeable hole, and the top of the needle bar is slightly lower than the water permeable hole.

2. The concrete water permeability coefficient detection device according to claim 1, characterized in that: The horizontal cross section of the detection box is rectangular.

3. The concrete water permeability coefficient detection device according to claim 1, characterized in that: The diameter of the needle rod is smaller than the radius of the water permeable hole.

4. The concrete water permeability coefficient detection device according to claim 2, characterized in that: The partition plate is provided with a support frame with a rectangular horizontal surface, the top of the support frame is connected to the sample slot, a vertical plate is provided in the support basket, a plurality of filter holes on the partition plate are divided into two groups, the vertical plate is provided between the two groups of filter holes, the top of the vertical plate is lower than the top of the support frame, wherein one of the relatively parallel side walls of the partition plate does not contact the detection box, and a slag cleaning port is provided at the bottom of the detection box; A water guide mechanism, comprising two water guide plates hinged to the bottom of the sample slot, and two groups of driving components, the two water guide plates are respectively located on both sides of the vertical plate, the two groups of driving components are arranged one-to-one with the two water guide plates to drive the water guide plates to rotate, the driving component comprises a groove arranged on the side wall of the support frame, a spring arranged in the groove, and a retractable wheel arranged on the side wall of the detection box, the notch of the groove is arranged toward the vertical plate, the spring is connected to the corresponding water guide plate, a driving rope is wound around the retractable wheel, and the driving rope passes through the support frame and is connected to the water guide plate; The slag discharge mechanism comprises two second telescopic motors arranged on the side walls of the detection box, the two second telescopic motors are arranged in one-to-one correspondence with the two groups of filter holes, the output shaft of the second telescopic motor seals and slides through the side wall of the support frame and extends into the support frame, the end of the output shaft of the second telescopic motor is connected with a scraper, the lower end of the scraper is in contact with the upper surface of the partition plate, and the scraper is perpendicular to the vertical plate, wherein two slag discharge ports are provided on the side wall of the support frame opposite to the scraper, the two slag discharge ports are arranged in one-to-one correspondence with the two scrapers, and an openable and closable cover is provided at the slag discharge port.

5. The concrete water permeability coefficient detection device according to claim 4, characterized in that: The support frame is provided with a sliding cavity at the part above the slag discharge port, the sliding cavity is communicated with the slag discharge port, a first telescopic cylinder is provided at the top of the sliding cavity, a cover plate is connected to the end of the output shaft of the first telescopic cylinder, and the cover plate is sealingly and slidably connected to the sliding cavity.

6. The concrete water permeability coefficient detection device according to claim 5, characterized in that: The side wall of the support frame opposite to the slag discharge port is recessed to form two accommodating grooves to respectively accommodate two scrapers.

7. The concrete water permeability coefficient detection device according to claim 6, characterized in that: The water guide cylinder comprises a vertical portion arranged below the partition plate, a water guide portion with an upper end having a larger diameter than a lower end and connected to the lower end of the vertical portion, the measuring cylinder is detachably connected to the water guide portion, and the horizontal cross-section of the vertical portion is a rectangle.

8. The concrete water permeability coefficient detection device according to claim 7, characterized in that: The detection box side wall is provided with two third telescopic motors, the output shaft of the third telescopic motor horizontally seals and slides through the vertical part and extends into the vertical part, the ends of the output shafts of the two third telescopic motors are commonly connected to a slag receiving box, the horizontal cross-section of the slag receiving box is rectangular, the bottom end of the slag receiving box is provided with a fourth telescopic motor, the end of the output shaft of the fourth telescopic motor is connected to an inclined plate, a plurality of hole cleaning rods are arranged at intervals on the inclined plate, and the plurality of hole cleaning rods are arranged one-to-one corresponding to the plurality of filter holes in any group of filter holes, a slag removal port is provided on the side wall of the slag receiving box corresponding to the lower end of the inclined plate, a chute is provided on the slag receiving box, the chute is connected to the slag removal port, a second telescopic cylinder is provided in the chute, the end of the second telescopic cylinder is connected to a sealing plate, a plurality of drainage holes are arranged at intervals on the sealing plate, wherein the diameter of the hole cleaning rod is smaller than the diameter of the filter hole, and when the slag receiving box is located below one group of filter holes, the projection of the group of filter holes on the horizontal plane is in the slag receiving box.

9. The concrete water permeability coefficient detection device according to claim 8, characterized in that: The inclined plate is sealingly and slidably connected to the side wall of the slag receiving box.

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