Concrete slump test detector

Abstract

The invention relates to the technical field of concrete detection, and particularly discloses a concrete slump test detector which is used for solving the problem of inconvenience in use in the prior art. Comprising a conveying belt used for supporting concrete, mounting side plates are symmetrically arranged on the two sides of the conveying belt, conveying motors used for driving the conveying belt to work are arranged on the mounting side plates, supporting legs used for supporting are symmetrically arranged on the two sides of the mounting side plates, and a plurality of slump cylinders used for forming concrete columns are arranged at the upper end of the conveying belt. The slump cylinder is connected with a separating mechanism used for driving the slump cylinder to be separated from the concrete column, and a supporting vertical plate is arranged on the other side, opposite to the separating mechanism, of the conveying belt. A plurality of concrete testing main bodies are designed and constructed according to existing requirements, the testing accuracy is improved, the conveying belt can be used for rotating before and after testing, so that concrete is transferred into the collecting mechanism, and the cleaning difficulty is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete detection, in particular to a concrete slump tester. Background Art

[0002] In the construction industry, concrete, as a core building material, has a quality that directly impacts the structural safety and service life of buildings. Concrete slump, a key indicator of its performance, quantifies the fluidity and plasticity of the concrete mix, providing a crucial parameter for concrete pouring and construction, ensuring that the concrete possesses excellent molding properties and construction adaptability.

[0003] The concrete quality tester disclosed in the existing patent (authorization announcement number CN222825540U) uses a mechanical structure to drive the tamping rod body to move intermittently along a spiral path at equal intervals, and cooperates with a reciprocating lifting mechanism to realize the alternating downward movement and equidistant offset of the tamping rod. Through standardized control of tamping force, depth and uniformity, the accuracy of the slump test results is effectively improved. However, this detection scheme still has limitations: First, a single test is only for a single sample. The singleness of the sample data makes it difficult for the test results to fully reflect the overall performance of the concrete mixture. When the sample discreteness is large, it is easy to cause detection deviations; second, in the cleaning link after the test is completed, there is a lack of an efficient concrete residue cleaning mechanism. The residual concrete is easy to adhere to the key parts of the detection device, which not only increases the burden of manual cleaning, but also interferes with the subsequent detection process due to the hardening of the residual concrete, significantly reducing the detection efficiency and making it difficult to meet the needs of large-scale, continuous engineering testing.

[0004] Based on this, a concrete slump tester is now provided to eliminate the drawbacks of existing devices. Summary of the Invention

[0005] The purpose of the present invention is to provide a concrete slump test detector, which solves the problem of inconvenience in use in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A concrete slump test detector comprises a conveyor belt for supporting concrete, and mounting side plates are symmetrically provided on both sides of the conveyor belt, and a transmission motor for driving the conveyor belt is provided on the mounting side plates, and legs for supporting are symmetrically provided on both sides of the mounting side plates, and a plurality of slump cones for forming concrete columns are provided on the upper end of the conveyor belt, and the slump cones are connected to a separation mechanism for driving them to separate from the concrete columns, and a support vertical plate is provided on the other side of the conveyor belt opposite to the separation mechanism, and the bottom of the support vertical plate is connected to a horizontal mechanism for driving it to move horizontally along the transmission direction of the mounting side plates, and a buffer cylinder for storing concrete is provided on one side of the support vertical plate, and the buffer cylinder is connected to a lifting mechanism for driving it to move up and down, and the bottom of the buffer cylinder is a conical structure. A discharge barrel is provided at the bottom, and the diameter of the discharge barrel does not exceed half of the diameter of the upper port of the slump barrel, which is convenient for concrete to enter the slump barrel. A tamping mechanism is provided on the upper end of the buffer barrel for allowing concrete to enter the slump barrel. The tamping mechanism allows the concrete in the slump barrel to be smoothly filled, and the concrete discharge in the discharge barrel can also be dredged, which greatly improves the operating efficiency. A scraping mechanism is provided on the outside of the discharge barrel for scraping off the concrete overflowing from the upper end of the slump barrel, so that the upper end of the slump barrel can be leveled. A collecting mechanism is provided at the end of the conveyor belt for collecting concrete. The collection of concrete can be quickly completed through the collecting mechanism, which greatly improves the cleaning efficiency for re-inspection. A camera measurement component for quickly detecting the height of concrete is provided on the support vertical plate.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional solution, a horizontal support plate is further provided between the two mounting side plates, and a surface of the horizontal support plate in contact with the conveyor belt is provided with a polishing layer.

[0010] In an optional solution: the collecting mechanism includes a scraper ramp that is in pressure contact with the lower side of the conveyor belt, a collecting box for collecting concrete is provided below the scraper ramp, and a support rod connected to the scraper ramp is provided on the collecting box.

[0011] In an optional solution: the scraping mechanism includes a scraping arm fixed to the outside of the discharge barrel, the end of the scraping arm is fixedly connected to the trowel plate, and the trowel plate is arranged horizontally.

[0012] In an optional solution: the compacting mechanism includes a transmission slide rod passing through the discharge barrel, a center guide sleeve is provided for sliding on the outside of the transmission slide rod, a blocking block is provided at the lower end of the transmission slide rod, the blocking block matches the inner diameter of the discharge barrel, and a dredging side rod is provided on the outside of the transmission slide rod near the blocking block to assist the falling of concrete, and the transmission slide rod is connected to a reciprocating pusher for driving its reciprocating motion.

[0013] In an optional solution: a rotation guide pattern is provided on the outer side of the transmission slide rod, a connector matching the eccentric connecting rod is rotatably provided on the upper end of the transmission slide rod, and a protruding structure matching the rotation guide pattern is provided on the inner wall of the center guide sleeve.

[0014] In an optional solution: the reciprocating pusher includes a turntable mounting plate fixedly connected to the upper end of the cache cylinder, a transmission shaft is rotatably provided on the turntable mounting plate, an eccentric turntable is provided at the end of the transmission shaft, a driving side shaft is installed on the surface of the eccentric turntable, the outer end of the driving side shaft is rotatably connected to the eccentric connecting rod, the lower end of the eccentric connecting rod is rotatably connected to the upper end of the transmission slide rod, an eccentric adjustment unit for adjusting the eccentric position of the driving side shaft is provided on the eccentric turntable, the other end of the transmission shaft is connected to a worm gear, the lower side of the worm gear is engaged with the worm, and the worm is connected to a flip motor for driving its rotation.

[0015] In an optional solution: the eccentric adjustment unit includes an eccentric slider slidingly arranged on the surface of the eccentric turntable, the eccentric slider is provided with a mounting hole rotatably connected to the driving side shaft, the eccentric slider is threadedly arranged on the eccentric screw, the eccentric screw is arranged along the diameter direction of the eccentric turntable, the eccentric screw is connected to the eccentric motor for driving it to rotate, and the other end of the eccentric screw is rotatably connected to the bearing block on the surface of the eccentric turntable.

[0016] In an optional solution: the lifting mechanism includes a cache slide connected to the cache tube, two lifting guide rods are vertically provided on the outer side of the support vertical plate, the ends of the two lifting guide rods are fixedly connected to the mounting block on the surface of the support vertical plate, the cache slide is slidably set on the lifting guide rod, and a lifting screw is threaded on the cache slide, the lower end of the lifting screw is rotatably connected to the mounting block, and the upper end of the lifting screw is connected to a lifting motor for driving it to rotate.

[0017] In an optional solution: the horizontal mechanism includes two horizontal guide rods fixed on the outside of the mounting side panel, the horizontal guide rods are slidingly arranged with the supporting vertical plate, the two ends of the horizontal guide rods are connected and fixed with the fixed blocks on the outside of the mounting side panel, a horizontal screw rod is threaded on the supporting vertical plate, one end of the horizontal screw rod is rotatably connected to the fixed block, and the other end of the horizontal screw rod is connected to a horizontal motor for driving its rotation.

[0018] In an optional solution: the separation mechanism includes a lifting bracket arranged above the mounting side plate, the two ends of the lifting bracket are connected and fixed to the mounting side plate through vertical guide rods, a collapse lifting push rod is installed at the center position of the upper end of the lifting bracket, the output end of the collapse lifting push rod is connected to the floating cross bar, the two ends of the floating cross bar are slidably arranged with the vertical guide rod, and a plurality of lifting cross bars connected to the collapse cylinder are provided on the outside of the vertical guide rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention is designed according to existing needs and constructs multiple concrete testing bodies, which improves the accuracy of the test. Before and after the test, the conveyor belt can be rotated to transfer the concrete to the collection mechanism, reducing the difficulty of cleaning.

[0021] 2. The present invention is designed according to existing needs. It can dredge and discharge the concrete in the buffer cylinder and compact the concrete in the collapse cylinder, killing two birds with one stone. At the same time, the collapse effect of multiple concrete columns can be quickly obtained through video measurement, which greatly improves the test efficiency, eliminates the need for manual reading, and improves the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of one side of the present invention.

[0023] Figure 2 It is a structural schematic diagram of another side of the present invention.

[0024] Figure 3 It is a schematic diagram of the lower structure of the present invention.

[0025] Figure 4 This is a schematic diagram of the cache cylinder structure of the present invention.

[0026] Figure 5 For the present invention Figure 2 A partial enlarged view of the structure.

[0027] Figure 6 It is a structural schematic diagram of one side of the eccentric turntable of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the other side of the eccentric turntable of the present invention.

[0029] Figure 8 Schematic diagram of the rotation guide pattern structure of the present invention.

[0030] Reference numerals: mounting side plate 100, conveyor belt 101, scraper ramp 102, collection box 103, support leg 104, conveying motor 105;

[0031] Slump lifting push rod 200, lifting bracket 201, lifting cross bar 202, floating cross bar 203, vertical guide rod 204, slump cylinder 205;

[0032] Display terminal 300;

[0033] Buffer cylinder 400, buffer slide 401, support vertical plate 402, lifting motor 403, eccentric turntable 404, lifting guide rod 405, lifting screw 406, discharge barrel 407, horizontal guide rod 408, horizontal screw 409, horizontal motor 410, transmission slide 411, dredging side rod 412, blocking block 413, scraper arm 414, trowel plate 415, turntable mounting plate 416, transmission shaft 417, worm gear 418, worm 419, flip motor 420, eccentric connecting rod 422, driving side shaft 423, eccentric slider 424, eccentric screw 425, eccentric motor 426, crossbeam frame 427, center guide sleeve 428, rotation guide pattern 429;

[0034] Camera measurement component 500. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0036] like Figures 1-8As shown, the embodiment of the present invention provides a concrete slump tester, including a conveyor belt 101 for supporting concrete, and symmetrically provided with mounting side plates 100 on both sides of the conveyor belt 101, and a transmission motor 105 for driving the conveyor belt 101 to work is provided on the mounting side plates 100, and symmetrically provided with supporting legs 104 on both sides of the mounting side plates 100, and a plurality of slump cones 205 for forming concrete columns are provided on the upper end of the conveyor belt 101, and the slump cones 205 are connected to a separation mechanism for driving the separation of the slump cones from the concrete columns. Under the action of the separation mechanism, the slump cones 205 are formed. The cylinder 205 contacts the surface of the conveyor belt 101. After the concrete filling inside the slump cylinder 205 is completed, the slump cylinder 205 is driven upward by the separation mechanism, and the formed concrete column will collapse. A support vertical plate 402 is provided on the other side of the conveyor belt 101 opposite to the separation mechanism. The bottom of the support vertical plate 402 is connected to a horizontal mechanism for driving it to move horizontally along the transmission direction of the installation side plate 100. A buffer cylinder 400 for storing concrete is provided on one side of the support vertical plate 402. The buffer cylinder 400 is connected to a lifting mechanism for driving it to move up and down. The buffer cylinder 400 The bottom is a conical structure, and a discharge barrel 407 is provided at the bottom of the buffer barrel 400. The diameter of the discharge barrel 407 does not exceed half the diameter of the upper port of the slump cone 205, which is convenient for concrete to enter the slump cone 205. The upper end of the buffer barrel 400 is provided with a tamping mechanism for allowing concrete to enter the slump cone 205. The tamping mechanism allows the concrete in the slump cone 205 to be filled smoothly, and the concrete discharge in the discharge barrel 407 can also be dredged, which greatly improves the operating efficiency. The outer side of the discharge barrel 407 is provided with a scraper for scraping off the concrete overflowing from the upper end of the slump cone 205. The mechanism can make the upper end of the slump cone 205 flat. The end of the conveyor belt 101 is provided with a collection mechanism for collecting concrete. The collection mechanism can quickly complete the collection of concrete, greatly improving the cleaning efficiency for re-inspection. The support vertical plate 402 is provided with a camera measurement component 500 for quickly detecting the height of concrete. In this way, the flow of the concrete column within a predetermined time can be quickly detected as needed, thereby detecting the slump of the concrete. Here, through camera detection, there is no need for manual operation by the staff, which effectively improves the detection efficiency.

[0037] The transmission motor 105, the compacting mechanism, the lifting mechanism, the separating mechanism, the leveling mechanism, and the camera measurement assembly 500 are electrically connected to a control terminal, which is provided with a touch screen display;

[0038] A horizontal support plate is further provided between the two mounting side plates 100. The surface of the horizontal support plate in contact with the conveyor belt 101 is provided with a polishing layer to reduce friction loss. The horizontal support plate contacts the inner side surface of the conveyor belt 101 to provide sufficient support force to the upper end surface of the conveyor belt 101.

[0039] The collecting mechanism includes a scraper ramp 102 that is in contact with the lower side of the conveyor belt 101. A collecting box 103 for collecting concrete is provided below the scraper ramp 102. A support rod connected to the scraper ramp 102 is provided on the collecting box 103. When the conveyor belt 101 rotates, the scraper ramp 102 contacts the surface of the conveyor belt 101 and can scrape off the concrete on the surface of the conveyor belt 101.

[0040] The scraping mechanism includes a scraping arm 414 fixed to the outside of the discharge barrel 407, the end of the scraping arm 414 is fixedly connected to the trowel plate 415, and the trowel plate 415 is arranged horizontally. By driving the trowel plate 415 to move horizontally, the concrete on the upper end of the lifting guide rod 405 can be smoothed. The conveyor belt 101 here is transported horizontally to transport the smoothed concrete away, further improving the cleaning efficiency;

[0041] The compacting mechanism includes a transmission slide 411 that passes through the discharge barrel 407. A central guide sleeve 428 is slidingly provided on the outer side of the transmission slide 411. A blocking block 413 is provided at the lower end of the transmission slide 411. The blocking block 413 matches the inner diameter of the discharge barrel 407. A dredging side rod 412 is provided on the outer side of the transmission slide 411 near the blocking block 413 to assist the falling of concrete. The transmission slide 411 is connected to a reciprocating pusher for driving its reciprocating motion. The reciprocating pusher drives the transmission slide 411 to reciprocate up and down, thereby stirring the concrete inside the discharge barrel 407 to improve the smoothness of the discharge.

[0042] In order to improve the dredging effect, a rotation guide pattern 429 is provided on the outer side of the transmission slide rod 411, and a connector matching the eccentric connecting rod 422 is rotatably provided on the upper end of the transmission slide rod 411, and a protruding structure matching the rotation guide pattern 429 is provided on the inner wall of the center guide sleeve 428. In this way, when the transmission slide rod 411 moves up and down along the center guide sleeve 428, the rotation guide pattern 429 matches the protruding structure, which can make the transmission slide rod 411 rotate, so that the dredging side rod 412 can rotate while moving up and down, thereby improving the dredging effect.

[0043] The reciprocating pusher includes a turntable mounting plate 416 fixedly connected to the upper end of the buffer cylinder 400, a transmission shaft 417 is rotatably provided on the turntable mounting plate 416, an eccentric turntable 404 is provided at the end of the transmission shaft 417, a driving side shaft 423 is installed on the surface of the eccentric turntable 404, the outer end of the driving side shaft 423 is rotatably connected to the eccentric connecting rod 422, the lower end of the eccentric connecting rod 422 is rotatably connected to the upper end of the transmission slide 411, and an eccentric adjustment unit for adjusting the eccentric position of the driving side shaft 423 is provided on the eccentric turntable 404. The other end of the driving shaft 417 is connected to the worm gear 418, and the lower side of the worm gear 418 is meshed with the worm 419. The worm 419 is connected to the flip motor 420 for driving it to rotate. Under the drive of the flip motor 420, the worm 419 matches the worm gear 418 to drive the transmission shaft 417 to rotate, and the transmission shaft 417 drives the eccentric turntable 404 to rotate, thereby providing a power source for reciprocating propulsion. In addition, the self-locking effect of the worm gear transmission pair is utilized here to lock the position of the blocking block 413, so that the lower end of the discharge barrel 407 can be blocked later.

[0044] The eccentric adjustment unit includes an eccentric slider 424 slidably arranged on the surface of the eccentric rotating disk 404, and the eccentric slider 424 is provided with a mounting hole rotatably connected to the driving side shaft 423. The eccentric slider 424 is threadedly arranged on the eccentric screw 425, and the eccentric screw 425 is arranged along the diameter direction of the eccentric rotating disk 404. The eccentric screw 425 is connected to the eccentric motor 426 for driving it to rotate, and the other end of the eccentric screw 425 is rotatably connected to the bearing block on the surface of the eccentric rotating disk 404. Under the drive of the eccentric motor 426, the eccentric screw 425 and the eccentric slider 424 rotate relative to each other. Under the action of the thread, the eccentric slider 424 slides along the surface of the eccentric rotating disk 404, thereby adjusting the amplitude of the reciprocating movement;

[0045] The lifting mechanism includes a cache slide 401 connected to the cache barrel 400, two lifting guide rods 405 are vertically provided on the outer side of the support vertical plate 402, and the ends of the two lifting guide rods 405 are fixedly connected to the mounting blocks on the surface of the support vertical plate 402, and the cache slide 401 is slidably set on the lifting guide rods 405, and a lifting screw 406 is threaded on the cache slide 401, and the lower end of the lifting screw 406 is rotatably connected to the mounting block, and the upper end of the lifting screw 406 is connected to a lifting motor 403 for driving it to rotate. Under the drive of the lifting motor 403, the lifting screw 406 and the cache slide 401 rotate relative to each other, and under the action of the thread, the cache slide 401 slides up and down along the lifting guide rods 405, thereby providing power for adjusting the height of the cache barrel 400;

[0046] The horizontal mechanism includes two horizontal guide rods 408 fixed to the outside of the mounting side plate 1002, the horizontal guide rods 408 and the support vertical plate 402 are slidably arranged, and the two ends of the horizontal guide rods 408 are connected and fixed to the fixed blocks on the outside of the mounting side plate 100, and a horizontal screw rod 409 is threaded on the support vertical plate 402, one end of the horizontal screw rod 409 is rotatably connected to the fixed block, and the other end of the horizontal screw rod 409 is connected to a horizontal motor 410 for driving the rotation thereof. Driven by the horizontal motor 410, the horizontal screw rod 409 and the support vertical plate 402 rotate relative to each other, and under the action of the thread, the support vertical plate 402 slides horizontally along the horizontal guide rods 408, providing power for the horizontal displacement of the support vertical plate 402;

[0047] The separation mechanism includes a lifting bracket 201 arranged above the mounting side plate 100, and the two ends of the lifting bracket 201 are connected and fixed to the mounting side plate 100 through vertical guide rods 204. A collapse lifting push rod 200 is installed at the center position of the upper end of the lifting bracket 201, and the output end of the collapse lifting push rod 200 is connected to the floating cross bar 203. The two ends of the floating cross bar 203 are slidingly arranged with the vertical guide rod 204. A plurality of lifting cross bars 202 connected to the collapse cone 205 are provided on the outside of the vertical guide rod 204. Under the push of the collapse lifting push rod 200, the floating cross bar 203 slides along the vertical guide rod 204, and the vertical guide rod 204 drives the collapse cone 205 to move up and down through the lifting cross bar 202.

[0048] Working principle: In actual use, the lower ends of multiple slump cones 205 are placed flat on the upper end of the conveyor belt 101, and then the concrete to be tested is added to the buffer cylinder 400. The position of the buffer cylinder 400 is adjusted by the lifting mechanism and the horizontal mechanism. Then, the discharge barrel 407 is aligned with the upper end of the slump cone 205, and the transmission slide 411 is driven up and down by the reciprocating pusher. In this way, the concrete inside the discharge barrel 407 can be stirred to improve the smoothness of the discharge. The falling concrete enters the slump cone 205 along the discharge barrel 407 to complete the filling of the concrete. Processing, the amplitude of the reciprocating movement of the transmission slide 411 is adjusted up and down by the eccentric adjustment unit, so that the blocking block 413 and the dredging side rod 412 will also extend into the slump cone 205, thereby assisting in compacting the concrete in the slump cone 205. After the state is completed, the height of the trowel plate 415 is adjusted by the lifting mechanism, and then the movement of the horizontal mechanism is coordinated to smooth the concrete overflowing from the upper end of the slump cone 205. The excess concrete will fall on the surface of the conveyor belt 101. With the transmission of the conveyor belt 101 and the collection of the collection mechanism, the excess concrete will be transferred away and will not affect subsequent inspections.

[0049] After the preparation work is completed, the separation mechanism drives the slump cone 205 to move upward, thereby separating the concrete column from the slump cone 205. At this time, the concrete column will automatically collapse. After a predetermined time, the height of multiple concrete columns is obtained through the camera measurement component 500, and then an average value is taken to improve the accuracy of the test;

[0050] Measuring component to detect concrete column height logic:

[0051] (1) Image acquisition: The video measurement component is equipped with a high-definition camera, which starts shooting at a predetermined time (e.g., 15-30 seconds after the collapse is completed, until the concrete shape stabilizes). The camera is fixedly installed to ensure that the shooting angle is perpendicular to the top plane of the concrete column and the center of the lens is aligned with the initial central axis of the collapse cylinder to ensure that there is no obvious visual distortion of the concrete column in the image. At the same time, to ensure image clarity and color reproduction, the camera is equipped with auxiliary lighting equipment to provide uniform and stable lighting during shooting.

[0052] (2) Image preprocessing: Grayscale the collected raw images, converting color images into grayscale images to reduce the amount of data and highlight grayscale differences within the image for subsequent analysis. Next, a filtering algorithm (such as median filtering or Gaussian filtering) is used to remove noise from the image, smooth image edges, and prevent noise interference from affecting height detection.

[0053] (3) Edge Detection and Contour Extraction: An edge detection algorithm (such as the Canny edge detection algorithm) is used to identify the edges of the concrete columns in the image. This algorithm uses Gaussian filtering to suppress noise, calculates gradient magnitude and direction, refines edges using non-maximum suppression, and uses a dual-threshold algorithm and hysteresis thresholding to determine the final edge, thereby accurately capturing the edge contours of the concrete columns. Then, based on the extracted edges, a contour tracking algorithm is used to obtain the complete contour information of the concrete columns.

[0054] (IV) Height Calculation: The extracted concrete column contour is analyzed based on the proportional relationship between the preset image coordinate system and the actual physical dimensions (during the equipment installation and commissioning phase, a mapping relationship between image pixel distance and actual physical distance is established by measuring a standard object of known height). The highest point of the concrete column contour is searched upward from the bottom of the image. The actual height of the concrete column is calculated based on the position of this point in the image coordinate system and the aforementioned proportional relationship. To improve measurement accuracy, height measurements can be taken at multiple locations on the concrete column (such as the center or multiple points equidistantly distributed along the edge), and the average value is taken as the concrete column height for that measurement.

[0055] 2. Mathematical model for slump calculation Assume that the height data of the concrete column obtained by the camera measurement component through the above process are h1, h2, ..., h n(n is the number of measurements), the initial height of the slump cone is H (fixed value, generally the slump cone height is 300mm). First calculate the average height of the concrete column The calculation formula is:

[0056] Then, the calculation of the concrete slump S is based on the difference between the initial height of the slump cone and the average height of the concrete column, as follows:

[0057] For example, if the slump cone height H = 300mm, the camera measurement component obtains 5 concrete column height data of 220mm, 218mm, 222mm, 221mm, and 219mm respectively through the above detection process, then the average value is

[0058] Slump S=300-220=80mm.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A concrete slump tester, comprising a conveyor belt (101) for supporting concrete, wherein mounting side plates (100) are symmetrically provided on both sides of the conveyor belt (101), a plurality of slump cones (205) for forming concrete columns are provided at the upper end of the conveyor belt (101), and the slump cones (205) are connected to a separation mechanism for driving the slump cones to separate from the concrete columns; Its characteristics are: A support vertical plate (402) is provided on the other side of the conveyor belt (101) opposite to the separation mechanism. The bottom of the support vertical plate (402) is connected to a horizontal mechanism for driving it to move horizontally along the transmission direction of the installation side plate (100). A buffer cylinder (400) for storing concrete is provided on one side of the support vertical plate (402). The buffer cylinder (400) is connected to a lifting mechanism for driving it to move up and down. A discharge cylinder (407) is provided at the bottom of the buffer cylinder (400). A tamping mechanism for allowing concrete to enter the slump cylinder (205) is provided at the upper end of the buffer cylinder (400). A scraping mechanism for scraping off the concrete overflowing from the upper end of the slump cylinder (205) is provided on the outer side of the discharge cylinder (407). A collecting mechanism for collecting concrete is provided at the end of the conveyor belt (101). The collection of concrete can be quickly completed through the collecting mechanism. A camera measurement component (500) for quickly detecting the height of concrete is provided on the support vertical plate (402).

2. The concrete slump tester according to claim 1, characterized in that: A horizontal support plate is further provided between the two mounting side plates (100), and a polishing layer is provided on the surface of the horizontal support plate that contacts the conveyor belt (101).

3. The concrete slump tester according to claim 1, characterized in that: The collecting mechanism comprises a scraper inclined plate (102) in contact with the lower side of the conveyor belt (101), a collecting box (103) for collecting concrete is provided below the scraper inclined plate (102), and a support rod connected to the scraper inclined plate (102) is provided on the collecting box (103).

4. The concrete slump tester according to claim 1, characterized in that: The scraping mechanism comprises a scraping arm (414) fixed on the outside of the discharge barrel (407), the end of the scraping arm (414) is fixedly connected to a trowel plate (415), and the trowel plate (415) is arranged horizontally.

5. The concrete slump tester according to claim 1, characterized in that: The compacting mechanism includes a transmission slide bar (411) that passes through the discharge barrel (407), a central guide sleeve (428) is provided on the outer side of the transmission slide bar (411) for sliding, a blocking block (413) is provided at the lower end of the transmission slide bar (411), and the blocking block (413) matches the inner diameter of the discharge barrel (407), and a dredging side rod (412) for assisting the falling of concrete is provided on the outer side of the transmission slide bar (411) near the blocking block (413), and the transmission slide bar (411) is connected to a reciprocating pusher for driving its reciprocating motion.

6. The concrete slump tester according to claim 5, characterized in that: The outer side of the transmission slide bar (411) is provided with a rotation guide pattern (429), the upper end of the transmission slide bar (411) is rotatably provided with a connector that matches the eccentric connecting rod (422), and the inner wall of the center guide sleeve (428) is provided with a protrusion structure that matches the rotation guide pattern (429).

7. The concrete slump tester according to claim 5, characterized in that: The reciprocating pusher includes a turntable mounting plate (416) fixedly connected to the upper end of the cache barrel (400), a transmission shaft (417) is rotatably provided on the turntable mounting plate (416), an eccentric turntable (404) is provided at the end of the transmission shaft (417), a driving side shaft (423) is installed on the surface of the eccentric turntable (404), the outer end of the driving side shaft (423) is rotatably connected to the eccentric connecting rod (422), the lower end of the eccentric connecting rod (422) is rotatably connected to the upper end of the transmission slide (411), an eccentric adjustment unit for adjusting the eccentric position of the driving side shaft (423) is provided on the eccentric turntable (404), the other end of the transmission shaft (417) is connected to the worm gear (418), the lower side of the worm gear (418) is meshed with the worm (419), and the worm (419) is connected to the flip motor (420) for driving its rotation.

8. The concrete slump tester according to claim 7, characterized in that: The eccentric adjustment unit comprises an eccentric slider (424) slidably arranged on the surface of the eccentric rotating disk (404); the eccentric slider (424) is provided with a mounting hole rotatably connected to the driving side shaft (423); the eccentric slider (424) is threadedly arranged on an eccentric screw (425); the eccentric screw (425) is arranged along the diameter direction of the eccentric rotating disk (404); the eccentric screw (425) is connected to an eccentric motor (426) for driving the eccentric screw (425) to rotate; the other end of the eccentric screw (425) is rotatably connected to a bearing block on the surface of the eccentric rotating disk (404).

9. The concrete slump tester according to claim 1, characterized in that: The lifting mechanism includes a cache slide (401) connected to the cache tube (400), two lifting guide rods (405) are vertically provided on the outer side of the support vertical plate (402), and the ends of the two lifting guide rods (405) are fixedly connected to the mounting block on the surface of the support vertical plate (402). The cache slide (401) is slidably set on the lifting guide rod (405), and a lifting screw (406) is threaded on the cache slide (401). The lower end of the lifting screw (406) is rotatably connected to the mounting block, and the upper end of the lifting screw (406) is connected to a lifting motor (403) for driving the rotation thereof.

10. The concrete slump tester according to claim 1, characterized in that: The separation mechanism comprises a lifting bracket (201) arranged above the mounting side plate (100), the two ends of the lifting bracket (201) are connected and fixed to the mounting side plate (100) through vertical guide rods (204), a collapse lifting push rod (200) is installed at the center position of the upper end of the lifting bracket (201), the output end of the collapse lifting push rod (200) is connected to a floating cross bar (203), the two ends of the floating cross bar (203) are slidably arranged with the vertical guide rod (204), and a plurality of lifting cross bars (202) connected to the collapse cylinder (205) are provided on the outer side of the vertical guide rod (204).

Images