Slump detection device for constructional engineering

Abstract

The invention relates to the technical field of constructional engineering detection, in particular to a constructional engineering slump detection device which comprises racks, a detection platform connected between the two racks, a portal frame connected between the two racks, a first lifting plate located above the detection platform and arranged on the portal frame, and a slump cylinder rotationally arranged in the middle of the first lifting plate. The portal frame is provided with a first driving piece used for driving the first lifting plate to ascend and descend, vibration generators are installed on the outer wall of the slump cylinder in the circumferential direction at intervals, and the first lifting plate is provided with a quantifying mechanism used for quantitatively putting concrete into the slump cylinder. When a weight sensor senses that the weight of concrete on a bearing plate reaches a preset value, an electric push rod works to push a connecting rod to rotate, so that a material blocking plate is driven by a rotating shaft to rotate to block a feeding opening of a feeding frame, quantitative feeding is achieved, it is guaranteed that the amount of the concrete fed every time is consistent, errors are reduced, and the working efficiency is improved. Therefore, the accuracy and the reliability of slump detection are improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering detection, and in particular to a slump detection device for construction engineering. Background Art

[0002] As a vital building material, concrete is widely used in building structures, infrastructure construction and various engineering fields. Its quality directly affects the durability, safety and service life of buildings. Among the many factors that affect the performance of concrete, workability is a key indicator, which mainly covers three aspects: fluidity, cohesion and water retention. These characteristics not only determine the ease of operation during the concrete construction process, but also significantly affect the quality of the final structure. In order to evaluate the fluidity of concrete, the commonly used methods in the industry include slump test and Vebe consistency test. Among them, the slump test is widely used because of its easy operation and simple equipment required.

[0003] After searching, a Chinese patent with patent announcement number CN117723441B is found, which is a concrete fluidity testing device, including a slump plate, a fixing frame is fixedly provided with a circumferential array on the upper side of the edge of the slump plate, a fixing ring is fixedly connected to one end of the fixing frame, a hollow column is coaxially rotated in the fixing ring, a hollow screw is coaxially rotated on the outer side of the hollow column, a pouring hood is coaxially fixed on the upper side of the hollow column, a nut is coaxially threadedly connected to the outer side of the hollow screw, a lifting and closing mechanism is arranged in an array together with the hollow column and the nut, and each lifting and closing mechanism is fixedly connected with a cylindrical fan.

[0004] Although the above patent can detect the slump of concrete, it cannot achieve quantitative feeding of the barrel fan. Since it relies on manual feeding, it is difficult to ensure that the amount of concrete fed each time is exactly the same. Even slight changes may cause fluctuations in the slump measurement value, thereby affecting the accuracy and reliability of the test data. In order to compensate for the errors caused by inaccurate feeding, more tests may be required to obtain more accurate data, which will undoubtedly increase time and material costs. Summary of the invention

[0005] The object of the present invention is to provide a slump detection device for construction engineering in order to solve the above-mentioned problem, which can realize quantitative feeding to ensure that the amount of concrete input each time is consistent, thereby reducing errors and improving the accuracy and reliability of detection.

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme: a slump detection device for construction engineering, comprising a frame, a detection platform connected between two frames, a gantry connected between the two frames, a lifting plate one located above the detection platform is provided on the gantry, a slump cylinder is rotatably provided in the middle of the lifting plate one, a driving member one for driving the lifting plate one to rise and fall is provided on the gantry, vibration generators are installed at intervals along the circumferential direction on the outer wall of the slump cylinder, a quantitative mechanism for quantitatively feeding concrete into the slump cylinder is provided on the lifting plate one, and the quantitative mechanism includes A feeding frame is connected to the lifting plate, the feeding frame is located on the upper side of the slump cylinder and is connected to the slump cylinder, the feeding port of the feeding frame is rotatably connected with a material blocking plate through a rotating shaft, an electric push rod is installed on the outside of the feeding frame, a connecting rod is hinged on the telescopic rod of the electric push rod, the connecting rod is connected to the rotating shaft, a weight sensor is installed on the top of the detection platform, the weight sensor is connected to a load-bearing plate located just below the slump cylinder, the top of the load-bearing plate is flush with the top of the detection platform, the gantry is connected to a connecting frame, and the connecting frame is connected to a collection frame for collecting excess concrete.

[0007] Preferably, a scraping mechanism is provided on the lifting plate one for scraping off concrete adhered to the inner wall of the slump cylinder, the scraping mechanism comprises a mounting frame connected to the lifting plate one, a lifting plate two is provided in the mounting frame, a driving member two for driving the lifting plate two to lift and lower is provided on the mounting frame, a connecting plate is rotatably connected to the lifting plate two via a rotating shaft, a scraper one is connected to the connecting plate, both the connecting plate and the scraper one pass through the top of the feeding frame, a contact plate is connected to the rotating shaft, the contact plate moves downward and contacts with the feeding frame, a spring is connected between the connecting plate and the lifting plate two, and a driving component for driving the slump cylinder to rotate is provided on the lifting plate two.

[0008] Preferably, a cleaning mechanism for cleaning the detection platform is provided between the two frames, the cleaning mechanism includes two mounting shells respectively connected to the two frames, the mounting shells are located on the outside of the detection platform, two connecting shafts are symmetrically rotatably connected between the two mounting shells, two belts are provided between the two connecting shafts via pulley sleeves, and two scrapers are connected between the two belts at intervals for scraping concrete on the detection platform, one of the mounting shells is provided with a second motor, and the second motor is connected to the corresponding connecting shaft.

[0009] Preferably, a nozzle 1 is connected to the connecting plate to spray water toward scraper 1 to rinse scraper 1, and a nozzle 2 is connected to the bottom of the detection platform to spray water downward to spray water onto scraper 2 to rinse scraper 2.

[0010] Preferably, a material guide trough is connected between the bottoms of the two mounting shells, and the inner bottom surface of the material guide trough is designed to be high in the middle and low on the outside, which is used to divert concrete and sewage. A partition plate for separating sewage and concrete is connected to the middle of the inner bottom surface of the material guide trough.

[0011] Preferably, the driving assembly comprises a motor 1 mounted on a lifting plate 1, and an output shaft of the motor 1 is transmission-connected to the slump cylinder via a gear set.

[0012] Preferably, two screw rods are symmetrically threadedly connected at the lower part of the frame, and the bottom ends of the screw rods are connected to support blocks.

[0013] Preferably, a stopper rod in contact with the upper portion of the connecting plate is connected to the lifting plate 2 for positioning the connecting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When the weight sensor senses that the weight of the concrete on the load-bearing plate reaches the preset value, the electric push rod works to push the connecting rod to rotate, thereby driving the blocking plate to rotate through the rotating shaft to block the feed port of the feeding frame to achieve quantitative feeding, thereby ensuring that the amount of concrete fed each time is consistent, thereby reducing errors and improving the accuracy and reliability of slump detection.

[0016] 2. The scraper on the scraping mechanism can scrape off the concrete adhering to the inner wall of the slump cylinder, so as to realize the automatic cleaning of the slump cylinder and prevent the concrete from adhering and solidifying on the inner wall of the slump cylinder, which will affect the subsequent concrete slump detection.

[0017] 3. The scraper 2 on the cleaning mechanism can scrape off the concrete on the detection platform to achieve automatic cleaning of the detection platform, avoiding the concrete from adhering and solidifying on the detection platform and affecting the subsequent concrete slump detection.

[0018] 4. Spray water onto scraper one through nozzle one to rinse scraper one, and spray water downward onto scraper two through nozzle two to rinse scraper two, so as to prevent concrete from solidifying on scraper one and scraper two and affecting subsequent scraping efficiency.

[0019] 5. Through the cooperation of the screw and the support block, the horizontal deviation of the frame can be corrected, thereby realizing the horizontal deviation correction of the detection platform, ensuring that the horizontal detection platform is in a horizontal state for slump detection, thereby ensuring the accuracy of slump detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the quantitative mechanism of the present invention.

[0023] Figure 4 It is a partial three-dimensional structural schematic diagram of the quantitative mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the scraping mechanism of the present invention.

[0025] Figure 6 It is a partial three-dimensional structural schematic diagram of the scraping mechanism of the present invention.

[0026] Figure 7 This is a schematic diagram of the installation of the nozzle 1 of the present invention.

[0027] Figure 8 It is a schematic diagram of the installation of the cleaning mechanism of the present invention.

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of the cleaning mechanism of the present invention.

[0029] Fig.10 This is a schematic diagram of the installation of the nozzle 2 of the present invention.

[0030] Fig.11 It is a schematic diagram of the three-dimensional structure of the material guide trough and the partition plate of the present invention.

[0031] The serial numbers in the figure are: 1-frame, 2-detection platform, 3-gantry, 4-lifting plate 1, 5-driving part 1, 6-slump cylinder, 61-vibration generator, 71-feeding frame, 72-rotating shaft, 73-blocking plate, 74-electric push rod, 75-connecting rod, 76-weight sensor, 77-load-bearing plate, 78-connecting frame, 79-collecting frame, 81-installation frame, 82-driving part 2, 83-lifting Lowering plate two, 84-rotating shaft, 85-connecting plate, 86-scraper one, 87-contact plate, 88-spring, 91-motor one, 92-gear set, 10-resist rod, 111-mounting shell, 112-connecting shaft, 113-belt, 114-motor two, 115-scraper two, 12-nozzle one, 13-nozzle two, 14-material guide trough, 15-partition plate, 16-screw, 17-support block. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] See also Figure 1-Figure 4A slump detection device for construction engineering comprises a frame 1, a detection platform 2 is connected between the inner sides of the left and right frames 1, a gantry 3 is connected between the outer sides of the left and right frames 1, a lifting plate 4 is slidably connected to the gantry 3 through a guide rod, the lifting plate 4 is located above the detection platform 2, a slump cylinder 6 is rotatably provided in the middle of the lifting plate 4, a driving member 5 for driving the lifting plate 4 to rise and fall is provided on the left side of the gantry 3, in a specific implementation, the driving member 5 is a screw motor, the screw on the screw motor is threadedly connected to the lifting plate 4, the screw motor drives the lifting plate 4 to rise and fall with high precision and good stability, four vibration generators 61 are installed at intervals along the circumferential direction on the outer wall of the slump cylinder 6, a quantitative mechanism for quantitatively feeding concrete into the slump cylinder 6 is provided on the lifting plate 4, the quantitative mechanism comprises a feeding frame 71 connected to the lifting plate 4, the feeding frame 71 is located on the upper side of the slump cylinder 6 and The feeding frame 71 is connected to the slump cylinder 6, and the feeding frame 71 is rotatably matched with the slump cylinder 6. The feeding port of the feeding frame 71 is rotatably connected with a rotating shaft 72, and the rotating shaft 72 is connected with a material blocking plate 73 located in the feeding frame 71. Electric push rods 74 are installed on the outer walls of the left and right sides of the feeding frame 71. The telescopic rod of the electric push rod 74 is hinged with a connecting rod 75, and the connecting rod 75 is connected to the rotating shaft 72. A weight sensor 76 is installed on the top of the detection platform 2. A load-bearing plate 77 is connected to the bottom of the slump cylinder 6, and the top of the load-bearing plate 77 is flush with the top of the detection platform 2. A connecting frame 78 is connected to the front side of the gantry 3. The connecting frame 78 is connected to a collecting frame 79 located in front of and below the feeding frame 71, which is used to collect excess concrete diverted from the blocking plate 73. The collecting frame 79 consists of an outer frame and an inner frame. The outer frame is connected to the connecting frame 78, and the inner frame is placed inside the outer frame to facilitate the processing of the collected excess concrete.

[0034] Manually put concrete into the slump cylinder 6 through the feeding frame 71. At the same time, control the vibration generator 61 to work, transmit the vibration to the slump cylinder 6, so that the concrete in the slump cylinder 6 vibrates, so that the concrete inside the slump cylinder 6 is filled tightly, avoiding the generation of internal cavities and bubbles, so that the concrete reaches the dense state required for measurement. When the weight sensor 76 senses that the weight of the concrete on the load-bearing plate 77 reaches a preset value, the weight sensor 76 sends a signal to the controller (the controller is not shown in the figure, the controller is a prior art, and will not be repeated here). After receiving the signal, the controller controls the telescopic rod of the electric push rod 74 to extend to push the connecting rod 75 to rotate upward, thereby driving the material blocking plate 73 to rotate through the rotating shaft 72 to block the feeding port of the feeding frame 71 to achieve quantitative feeding, thereby ensuring that the amount of concrete put in each time is consistent, thereby reducing errors, so as to improve the accuracy and reliability of slump detection. After the blocking plate 73 rotates, the excess concrete on it is guided forward and downward into the collection frame 79 for collection. Then, the driving member 5 is controlled to drive the lifting plate 4 to drive the slump cone 6 to move upward. After the slump cone 6 is moved upward, the concrete collapses due to its own weight. Then, the operator uses a measuring ruler to measure the height of the highest point of the concrete after collapse. The height of the slump cone 6 minus the height of the highest point of the concrete after collapse is the slump of the concrete, thereby testing the fluidity of the concrete. After the slump test is completed, the telescopic rod of the electric push rod 74 is controlled to retract to pull the connecting rod 75 to rotate downward, thereby driving the blocking plate 73 to rotate and open through the rotating shaft 72.

[0035] See also Figure 5-Figure 6, a scraping mechanism is provided on the lifting plate 1 4 for scraping off the concrete adhered to the inner wall of the slump cylinder 6, the scraping mechanism comprises a mounting frame 81 connected to the lifting plate 1 4, a lifting plate 2 83 is slidably connected to the mounting frame 81 through a guide rod, a driving member 2 82 for driving the lifting plate 2 83 to rise and fall is provided on the rear side of the mounting frame 81, in a specific implementation, the driving member 2 82 is a screw motor, the screw on the screw motor is threadedly connected to the lifting plate 2 83, the screw motor drives the lifting plate 2 83 to rise and fall with high precision and good stability, the front side of the lifting plate 2 83 is rotatably connected to a rotating shaft 84, a connecting plate 85 is connected to the rotating shaft 84, a scraper 1 86 is connected to the connecting plate 85, the connecting plate 85 and the scraper 1 86 both pass through the top of the feeding frame 71, and the rotating shaft 84 is symmetrically connected to the left and right. There are two contact plates 87 located on the outside of the connecting plate 85, and the contact plate 87 moves down to contact the feeding frame 71. A spring 88 is connected between the connecting plate 85 and the lifting plate 83. The lifting plate 83 is provided with a driving assembly for driving the slump cylinder 6 to rotate. The driving assembly includes a motor 91 installed on the lifting plate 4. The motor 91 is located on the right side of the slump cylinder 6. The output shaft of the motor 91 is connected to the slump cylinder 6 through a gear set 92. The gear set 92 consists of a small gear and a large gear set 92. The small gear is connected to the output shaft of the motor 91, and the large gear is connected to the upper part of the outer wall of the slump cylinder 6. The large gear is meshed with the small gear. The lifting plate 83 is connected with a push rod 10 that contacts the upper rear part of the connecting plate 85 for positioning the connecting plate 85. The push rod 10 is located above the spring 88.

[0036] After the slump test is completed, the control driving member 2 82 drives the lifting plate 2 83 to move downward, thereby driving the connecting plate 85 to move downward through the rotating shaft 84, and then driving the scraper 1 86 to move downward into the slump tube 6. When the contact plate 87 follows the rotating shaft 84 to move downward and contact the feeding frame 71, the contact plate 87 cannot move downward further, so the rotating shaft 84 drives the contact plate 87 to continue to move downward, so that the contact plate 87 is pushed by the feeding frame 71 to rotate, and the rotation of the contact plate 87 drives the connecting plate 85 to swing through the rotating shaft 84, stretching the spring 88, and the swing of the connecting plate 85 drives the scraper 1 86 to swing and closely adhere to the inner wall of the slump tube 6. Then the control motor 1 91 works to drive the gear set 92 to drive the slump tube 6 to rotate. During the rotation of the slump tube 6, the concrete stuck on its inner wall is scraped off by the scraper 1 86, so as to realize automatic cleaning of the slump tube 6, and prevent the concrete from adhering to and solidifying on the inner wall of the slump tube 6, which affects the subsequent concrete slump test. After the slump cylinder 6 is cleaned, the control driving member 2 82 drives the lifting plate 2 83 to move up and reset, thereby driving the rotating shaft 84, the connecting plate 85, the scraper 1 86 and the contact plate 87 to move up and reset. When the contact plate 87 moves up and disengages from the feeding frame 71, the connecting plate 85 is pulled to swing back to the vertical state under the reset action of the spring 88, thereby driving the scraper 1 86 to swing back to the vertical state, so that the scraper 1 86 can enter the slump cylinder 6 next time. The connecting plate 85 can be positioned by the stop rod 10 to prevent the connecting plate 85 from swinging too much, and ensure that the connecting plate 85 is accurately swung back to the vertical state, so as to avoid affecting the next time the connecting plate 85 drives the scraper 1 86 to enter the slump cylinder 6.

[0037] See also Figure 8-Figure 9 A cleaning mechanism for cleaning the detection platform 2 is provided between the two frames 1. The cleaning mechanism includes two mounting shells 111 respectively connected to the two frames 1. The mounting shells 111 are located on the outside of the detection platform 2. Two connecting shafts 112 are symmetrically rotatably connected between the two mounting shells 111. Two left and right belts 113 are sleeved between the two connecting shafts 112 through a pulley. The two belts 113 are respectively located in the two mounting shells 111. Two scrapers 115 are connected between the two belts 113 at intervals for scraping concrete on the detection platform 2. A motor 114 is installed on the front side of the right mounting shell 111. The motor 114 is connected to the front connecting shaft 112.

[0038] After the slump test is completed, the control motor 114 is operated to drive the front connecting shaft 112 to drive the belt 113 to rotate, so that the scraper 115 moves to scrape the concrete on the test platform 2 backwards, so as to automatically clean the test platform 2 and prevent the concrete from adhering to and solidifying on the test platform 2, thereby affecting the subsequent concrete slump test. A collection container is placed at the lower back of the test platform 2 to collect the concrete scraped from the test platform 2 for secondary use.

[0039] See also Figure 5-Figure 10 A nozzle 12 is connected to the connecting plate 85 for spraying water toward the scraper 86 , and a nozzle 13 is connected to the front side of the bottom of the detection platform 2 for spraying water downward so as to spray water onto the scraper 115 .

[0040] The nozzle 12 and the nozzle 2 13 are connected to an external infusion device to input water into the nozzle 12 and the nozzle 2 13, and the water is sprayed toward the scraper 1 86 through the nozzle 12 to wash the scraper 1 86 to prevent the concrete from solidifying on the scraper 1 86 and affecting the subsequent scraping efficiency. The water is sprayed downward onto the scraper 2 115 through the nozzle 2 13 to wash the scraper 2 115 to prevent the concrete from solidifying on the scraper 2 115 and affecting the subsequent scraping efficiency.

[0041] See also Figure 8 and Fig.11 A material guide trough 14 is connected between the bottoms of the two mounting shells 111. The inner bottom surface of the material guide trough 14 is designed to be high in the middle and low outside, and is used to divert concrete and sewage. A partition plate 15 for separating sewage and concrete is connected to the middle of the inner bottom surface of the material guide trough 14.

[0042] The concrete scraped from the detection platform 2 can be directed backward and downward through the guide trough 14, and the sewage after the washing scraper 115 can be directed forward and downward to realize the diversion of concrete and sewage. The partition plate 15 can separate the concrete and sewage to avoid mixing of concrete and sewage, so as to facilitate the subsequent classification and collection of concrete and sewage.

[0043] See also Figure 1 and Figure 8 The lower part of the frame 1 is symmetrically threaded with two screw rods 16 , and the bottom end of the screw rod 16 is connected with a support block 17 .

[0044] When the ground is uneven, the frame 1 will be placed unevenly, causing the detection platform 2 to tilt and affect the slump detection accuracy. The screw 16 can be turned to drive the support block 17 to adjust the height of the frame 1 to achieve horizontal deviation correction of the frame 1, thereby achieving horizontal deviation correction of the detection platform 2, ensuring that the horizontal detection platform 2 is in a horizontal state for slump detection, thereby ensuring the slump detection accuracy.

[0045] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A slump detection device for construction engineering, comprising a frame (1), a detection platform (2) connected between two frames (1), a gantry (3) connected between the two frames (1), a lifting plate (4) located above the detection platform (2) provided on the gantry (3), a slump cylinder (6) rotatably provided in the middle of the lifting plate (4), a driving member (5) for driving the lifting plate (4) to rise and fall, characterized in that: Vibration generators (61) are installed at intervals along the circumferential direction on the outer wall of the slump cylinder (6); a quantitative mechanism for quantitatively feeding concrete into the slump cylinder (6) is provided on the lifting plate (4); the quantitative mechanism comprises a feeding frame (71) connected to the lifting plate (4); the feeding frame (71) is located on the upper side of the slump cylinder (6) and is connected to the slump cylinder (6); a material blocking plate (73) is rotatably connected to the feeding port of the feeding frame (71) via a rotating shaft (72); an electric push rod (73) is installed outside the feeding frame (71) 74), a connecting rod (75) is hinged on the telescopic rod of the electric push rod (74), the connecting rod (75) is connected to the rotating shaft (72), a weight sensor (76) is installed on the top of the detection platform (2), the weight sensor (76) is connected to a load-bearing plate (77) located just below the slump cylinder (6), the top of the load-bearing plate (77) is flush with the top of the detection platform (2), the gantry (3) is connected to a connecting frame (78), and the connecting frame (78) is connected to a collection frame (79) for collecting excess concrete.

2. A slump detection device for construction engineering according to claim 1, characterized in that: The lifting plate 1 (4) is provided with a scraping mechanism for scraping concrete adhered to the inner wall of the slump tube (6). The scraping mechanism comprises a mounting frame (81) connected to the lifting plate 1 (4), a lifting plate 2 (83) is arranged in the mounting frame (81), a driving member 2 (82) for driving the lifting plate 2 (83) to move up and down is arranged on the mounting frame (81), a connecting plate (85) is rotatably connected to the lifting plate 2 (83) through a rotating shaft (84), a scraper 1 (86) is connected to the connecting plate (85), both the connecting plate (85) and the scraper 1 (86) pass through the top of the feeding frame (71), a contact plate (87) is connected to the rotating shaft (84), the contact plate (87) moves downward to contact the feeding frame (71), a spring (88) is connected between the connecting plate (85) and the lifting plate 2 (83), and a driving assembly for driving the slump tube (6) to rotate is arranged on the lifting plate 2 (83).

3. A slump detection device for construction engineering according to claim 2, characterized in that: A cleaning mechanism for cleaning the detection platform (2) is provided between the two frames (1), the cleaning mechanism comprising two mounting shells (111) respectively connected to the two frames (1), the mounting shells (111) being located outside the detection platform (2), two connecting shafts (112) being symmetrically rotatably connected between the two mounting shells (111), two belts (113) being arranged between the two connecting shafts (112) via a belt pulley sleeve, a second scraper (115) being spaced apart between the two belts (113) for scraping concrete on the detection platform (2), a second motor (114) being installed on one of the mounting shells (111), the second motor (114) being connected to the corresponding connecting shaft (112).

4. A slump detection device for construction engineering according to claim 3, characterized in that: The connecting plate (85) is connected to a nozzle (12) for spraying water toward the scraper (86) to wash the scraper (86), and the bottom of the detection platform (2) is connected to a nozzle (13) for spraying water downwards to spray water onto the scraper (115) to wash the scraper (115).

5. A slump detection device for construction engineering according to claim 4, characterized in that: A material guide trough (14) is connected between the bottoms of the two mounting shells (111). The inner bottom surface of the material guide trough (14) is designed to be high in the middle and low outside and is used to divert concrete and sewage. A partition plate (15) for separating sewage and concrete is connected to the middle of the inner bottom surface of the material guide trough (14).

6. A slump detection device for construction engineering according to claim 5, characterized in that: The driving assembly comprises a motor 1 (91) mounted on a lifting plate 1 (4), and an output shaft of the motor 1 (91) is transmission-connected to a slump cylinder (6) via a gear set (92).

7. A slump detection device for construction engineering according to claim 6, characterized in that: The lower part of the frame (1) is symmetrically threaded with two screw rods (16), and the bottom ends of the screw rods (16) are connected with support blocks (17).

8. A slump detection device for construction engineering according to claim 7, characterized in that: The second lifting plate (83) is connected with a stopper (10) in contact with the upper part of the connecting plate (85) for positioning the connecting plate (85).

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