Homogeneity testing device for self-compacting concrete

Abstract

The utility model relates to a self-compacting concrete homogeneity testing device, which belongs to the technical field of building material detection and comprises a testing frame. The device has the beneficial effects that when the homogeneity of the self-compacting concrete needs to be detected, the rotating plate is propped against the bearing plate below the rotating plate and is tightly attached to the container, so that the leakage of the concrete can be reduced before detection, the cleanness of the test board can be ensured, and the uniformity of the self-compacting concrete can be ensured along with the operation of the transmission mechanism. When the concrete homogeneity testing device is used, the container is driven to continuously move in the direction away from one side of the bearing plate, at the moment, a rotating plate at the bottom of the container loses the contact of the bearing plate, then the rotating plate is automatically opened and is matched with a testing mechanism to test the concrete homogeneity, and the bottom end of the container is detachable through the matched use of a magnetic part and an iron part; in this way, the remaining coarse aggregate can be conveniently taken out, aired and weighed, and then the testing efficiency and using convenience of concrete can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building material detection, in particular to a self-compacting concrete homogeneity testing device. Background Art

[0002] After being still, self-compacting concrete often shows more or less stratification phenomena such as aggregate floating or sinking, segregation, and slurry exudation. The concrete has poor homogeneity, resulting in loose filling during pouring, defects on the hardened surface, and pipe blockage, bursting, or unsuccessful pumping during pumping. Therefore, the detection of the homogeneity of self-compacting concrete is particularly important.

[0003] After searching, a Chinese patent discloses a device for detecting the homogeneity of concrete (authorization announcement number CN207020033U), which includes a support column, on which a flushing box is fixedly mounted, the cross-section of the flushing box being a tank body of a fan-shaped structure, the side wall of the flushing box being provided with an opening, at least four guide plates being equidistantly mounted on the inner side of the flushing box, bearings being mounted on the upper part of the support column near the guide plate, and material taking containers of the same structure being fixedly mounted on the bearings, a conduit being provided in the support column, a valve being mounted on the lower part of the side wall of the support column, the valve being connected to the conduit, the flushing pipes being connected to the conduit, a flushing joint being mounted on the end of the flushing pipe away from the support column, a flushing pan being mounted on the bottom of the flushing joint, and the flushing pan being located on the upper part of the material taking container. Although this patented technology is convenient for taking materials, simple to operate, and has a short detection cycle, it is easy to use.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that the concrete homogeneity detection device uses a material dispensing container to load the concrete to be tested. However, before the material dispensing container rotates, its bottom is not covered. This will inevitably cause the concrete to fall through the filter screen onto the test table, causing the test table to be dirty. The test table needs to be cleaned after the test is completed. Moreover, after the test is completed, coarse aggregate will remain on the filter screen, and the material dispensing container cannot be disassembled, which will make it difficult to remove the coarse aggregate. Utility Model Content

[0005] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide a self-compacting concrete homogeneity testing device.

[0006] The technical solution of the present utility model is as follows: a self-compacting concrete homogeneity testing device includes a test frame, the inner wall of the test frame is fixedly connected to a receiving plate, the top of the receiving plate is slidably connected to a container, the bottom end of the container is provided with a rotating plate, the outside of the container is provided with two hinges, the container and the rotating plate are connected by a hinge, the bottom of the container is provided with a frame groove, the inner wall of the frame groove is embedded with an iron piece, the inside of the frame groove is clamped with a magnetic piece, the bottom end of the magnetic piece is fixedly connected to a bottom plate, and the inside of the bottom plate is fixedly connected to a filter.

[0007] By adopting the above technical solution, the rotating plate is subject to resistance from the receiving plate below it and will fit tightly with the container, thereby reducing leakage of concrete before testing and ensuring the cleanliness of the test bench. As the transmission mechanism operates, the container will be driven to continuously move away from the receiving plate. At this time, the rotating plate at the bottom of the container will lose the resistance of the receiving plate and will then automatically open.

[0008] As a preferred embodiment, a weighing mechanism is provided on the top of the test stand and above the container, and the weighing mechanism includes a circular groove opened inside the test stand, a weighing box is rotatably installed inside the circular groove, a weighing sensor is installed inside the weighing box, and a weighing plate is provided inside the weighing box.

[0009] By adopting the above technical solution, the weight of the concrete on the weighing plate can be detected through the action of the weighing sensor.

[0010] As a preferred embodiment, a display mechanism is provided at the top of the test frame, and the display mechanism includes a rotating shaft rotatably installed inside the test frame, one end of the rotating shaft extends to the inside of the circular groove and is fixedly connected to the rotating shaft of the weighing box, a display screen is fixedly installed at the top of the test frame, and a controller is fixedly installed at the top of the test frame.

[0011] By adopting the above technical solution and transmitting the information data to the controller, the weight result is then displayed on the display screen, so that the weight of the concrete to be tested is consistent, and the concrete to be tested falls into the container by rotating the shaft.

[0012] As a preferred embodiment, a transmission mechanism is provided inside the test frame, and the transmission mechanism includes a screw rotatably installed inside the test frame, a limiting rod is fixedly connected to the inside of the test frame and on one side of the screw, the outer side of the screw is threadedly connected to a threaded block, and the outer side of the limiting rod is slidably connected to a slider, and the threaded block and the slider are fixedly connected to the two sides of the container respectively.

[0013] By adopting the above technical solution and arranging the limiting rod and the slider, the stability of the container during movement can be ensured, and at the same time, an important limiting effect can be played on the container.

[0014] As a preferred embodiment, a testing mechanism is provided inside the test stand, and the testing mechanism includes a water spray head fixedly mounted on the top of the inner wall of the test stand, and a water receiving box is fixedly mounted inside the test stand and below the water spray head. A connecting pipe is fixedly connected to the top of the test stand, one end of the connecting pipe extends to the interior of the water spray head, and a flange is fixedly connected to the end of the connecting pipe away from the water spray head.

[0015] By adopting the above technical solution, the self-compacting concrete in the container can be flushed through the water spray head to screen out the coarse aggregate. After the flushing is completed, the coarse aggregate is dried and weighed, and the mass ratio of the coarse aggregate in the container is calculated.

[0016] As a preferred embodiment, a servo motor is fixedly mounted on the outer side of the test frame, and the output shaft of the servo motor passes through the test frame and is fixedly connected to the screw.

[0017] By adopting the above technical solution, the screw can be driven by the rotation of the output shaft of the servo motor.

[0018] As a preferred embodiment, both ends of the bottom of the test stand are fixedly connected to support plates, the bottom end of the water receiving box is fixedly connected to a sewage pipe, and a valve is provided on the outside of the sewage pipe.

[0019] By adopting the above technical solution and setting up a sewage pipe, sewage can be discharged for treatment.

[0020] As a preferred embodiment, the servo motor, weighing sensor and display screen are all electrically connected to the controller.

[0021] By adopting the above technical solution, the servo motor, weighing sensor and display screen can be controlled to start and stop through the controller.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are:

[0023] 1. In the present invention, when it is necessary to conduct a homogeneity test on self-compacting concrete, the rotating plate is subject to resistance from the receiving plate below it and will fit tightly with the container, thereby reducing leakage of concrete before testing, thereby ensuring the cleanliness of the test bench, and as the transmission mechanism operates, the container will be driven to continuously move in the direction away from the receiving plate. At this time, the rotating plate at the bottom of the container will lose the resistance of the receiving plate, and then it will automatically open and cooperate with the testing mechanism to test the homogeneity of the concrete. The use of magnetic parts and iron parts makes the bottom end of the container detachable, thereby facilitating the removal of the remaining coarse aggregate, drying and weighing, thereby improving the testing efficiency and convenience of concrete.

[0024] 2. In the present invention, by placing the self-compacting concrete on the weighing plate in the weighing box and using the weighing sensor, the weight of the concrete on the weighing plate can be detected, and the information data can be transmitted to the controller, and the weight result can be displayed on the display screen, so that the weight of the concrete to be tested is consistent, thereby ensuring the accuracy of the self-compacting concrete test. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model provides an overall stereogram of the self-compacting concrete homogeneity testing device;

[0026] Figure 2 A rear view of the self-compacting concrete homogeneity testing device is provided for the present invention;

[0027] Figure 3 A schematic diagram of the internal structure of a container providing a self-compacting concrete homogeneity testing device according to the present invention;

[0028] Figure 4 The utility model provides a schematic structural diagram of the weighing mechanism of a self-compacting concrete homogeneity testing device.

[0029] Legend: 1. Test stand; 2. Socket plate; 3. Threaded block; 4. Slider; 5. Screw; 6. Limit rod; 7. Servo motor; 8. Weighing box; 9. Weighing plate; 10. Water receiving box; 11. Controller; 12. Sprinkler head; 13. Weighing sensor; 14. Rotating shaft; 15. Container; 16. Rotating plate; 17. Bottom plate; 18. Filter; 19. Iron parts; 20. Magnetic parts; 21. Hinge; 22. Display screen. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] Reference Figure 1-4 , a self-compacting concrete homogeneity testing device includes a test frame 1, the inner wall of the test frame 1 is fixedly connected with a receiving plate 2, the top of the receiving plate 2 is slidably connected with a container 15, the bottom end of the container 15 is provided with a rotating plate 16, the outer side of the container 15 is provided with two hinges 21, the container 15 and the rotating plate 16 are connected by the hinge 21, the bottom of the container 15 is provided with a frame groove, the inner wall of the frame groove is embedded with an iron piece 19, the inside of the frame groove is clamped with a magnetic piece 20, the bottom end of the magnetic piece 20 is fixedly connected with a bottom plate 17, the inside of the bottom plate 17 is fixedly connected with a filter screen 18, when it is necessary to perform a homogeneity test on the self-compacting concrete, at this time, the rotating plate 16 is subjected to pressure from below The interference of the receiving plate 2 will fit tightly with the container 15, so as to reduce the leakage of concrete before testing, thereby ensuring the cleanliness of the test bench, and with the operation of the transmission mechanism, the container 15 will be driven to continuously move in the direction away from the receiving plate 2. At this time, the rotating plate 16 at the bottom of the container 15 will lose the interference of the receiving plate 2, and then it will automatically open and cooperate with the testing mechanism to test the homogeneity of the concrete. The use of the magnetic piece 20 and the iron piece 19 makes the bottom end of the container 15 detachable, which is convenient for taking out the remaining coarse aggregate, drying it and weighing it, thereby improving the testing efficiency and convenience of concrete.

[0032] Reference Figure 4 A weighing mechanism is provided at the top of the test frame 1 and above the container 15. The weighing mechanism includes a circular groove opened inside the test frame 1, a weighing box 8 is rotatably installed inside the circular groove, a weighing sensor 13 is installed inside the weighing box 8, and a weighing plate 9 is provided inside the weighing box 8. A display mechanism is provided at the top of the test frame 1. The display mechanism includes a rotating shaft 14 rotatably installed inside the test frame 1, one end of the rotating shaft 14 extends to the inside of the circular groove and is fixedly connected to the rotating shaft of the weighing box 8. A display screen 22 is fixedly installed on the top of the test frame 1, and a controller 11 is fixedly installed on the top of the test frame 1. By placing the self-compacting concrete on the weighing plate 9 in the weighing box 8 and through the action of the weighing sensor 13, the weight of the concrete on the weighing plate 9 can be detected, and the information data can be transmitted to the controller 11, and the weight result is then displayed through the display screen 22, so that the weight of the concrete to be tested is consistent, thereby ensuring the accuracy of the self-compacting concrete test.

[0033] Reference Figure 3 A transmission mechanism is provided inside the test frame 1, and the transmission mechanism includes a screw 5 rotatably installed inside the test frame 1. A limiting rod 6 is fixedly connected to the inside of the test frame 1 and located on one side of the screw 5. The outer side of the screw 5 is threadedly connected to a threaded block 3, and the outer side of the limiting rod 6 is slidably connected to a slider 4. The threaded block 3 and the slider 4 are respectively fixedly connected to the two sides of the container 15. The rotation of the screw 5 can drive the threaded block 3 to move, and the setting of the limiting rod 6 and the slider 4 can ensure the stability of the container 15 during the movement, and at the same time can play an important limiting role for the container 15.

[0034] Reference Figure 2 A testing mechanism is provided inside the test frame 1, and the testing mechanism includes a water spray head 12 fixedly mounted on the top of the inner wall of the test frame 1. A water receiving box 10 is fixedly mounted inside the test frame 1 and below the water spray head 12. A connecting pipe is fixedly connected to the top of the test frame 1, one end of the connecting pipe extends to the interior of the water spray head 12, and the end of the connecting pipe away from the water spray head 12 is fixedly connected to a flange. The self-compacting concrete in the container 15 can be flushed through the water spray head 12 to screen out the coarse aggregate. After the flushing is completed, the coarse aggregate is dried and weighed, and the mass ratio of the coarse aggregate in the container 15 is calculated to measure the homogeneity of the self-compacting concrete.

[0035] Reference Figure 2 A servo motor 7 is fixedly installed on the outside of the test frame 1. The output shaft of the servo motor 7 passes through the test frame 1 and is fixedly connected to the screw 5. Both ends of the bottom of the test frame 1 are fixedly connected to support plates. The bottom end of the water receiving tank 10 is fixedly connected to a sewage pipe. Through the setting of the sewage pipe, the sewage can be discharged as soon as possible for unified treatment. A valve is provided on the outside of the sewage pipe. The servo motor 7, the weighing sensor 13 and the display screen 22 are all electrically connected to the controller 11. The rotation of the output shaft of the servo motor 7 can drive the screw 5, and the servo motor 7, the weighing sensor 13 and the display screen 22 can be controlled to start and stop by the controller 11.

[0036] Working principle: First, by placing the self-compacting concrete on the weighing plate 9 in the weighing box 8, and through the action of the weighing sensor 13, the weight of the concrete on the weighing plate 9 can be detected, and the information data is transmitted to the controller 11, and the weight result is then displayed through the display screen 22, thereby ensuring the accuracy of the self-compacting concrete test. Subsequently, the rotating shaft 14 is rotated to make the concrete to be tested fall into the container 15. At this time, the rotating plate 16 is resisted by the receiving plate 2 below it and will fit tightly with the container 15, thereby reducing the leakage of concrete before the test, and the servo motor 7 is controlled to start by the controller 11. The rotation of the output shaft of the servo motor 7 can drive the rotation of the screw 5, which can drive the threaded block 3 to move horizontally, and through The setting of the limit rod 6 and the slider 4 can ensure the stability of the container 15 during the movement, and at the same time can play an important limiting role for the container 15. At this time, the rotating plate 16 at the bottom of the container 15 will lose the resistance of the receiving plate 2, and then it will automatically open, and the self-compacting concrete in the container 15 can be flushed through the sprinkler head 12, and then the coarse aggregate will be screened out. The bottom end of the container 15 is made detachable by the cooperation of the magnetic piece 20 and the iron piece 19, so that the remaining coarse aggregate can be taken out, dried and weighed, and the mass ratio of the coarse aggregate in the container 15 is calculated to measure the homogeneity of the self-compacting concrete. The sewage that finally flows down will enter the interior of the water receiving box 10 and be discharged as soon as possible through the sewage pipe for unified treatment.

[0037] The above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A self-compacting concrete homogeneity testing device, comprising a test stand (1), characterized in that: The inner wall of the test stand (1) is fixedly connected to a receiving plate (2), the top of the receiving plate (2) is slidably connected to a container (15), the bottom end of the container (15) is provided with a rotating plate (16), the outer side of the container (15) is provided with two hinges (21), the container (15) and the rotating plate (16) are connected via the hinges (21), a frame groove is provided at the bottom of the container (15), an iron piece (19) is embedded in the inner wall of the frame groove, a magnetic piece (20) is clamped inside the frame groove, the bottom end of the magnetic piece (20) is fixedly connected to a bottom plate (17), and the inside of the bottom plate (17) is fixedly connected to a filter screen (18).

2. The self-compacting concrete homogeneity testing device according to claim 1, characterized in that: A weighing mechanism is provided on the top of the test stand (1) and above the container (15), the weighing mechanism comprising a circular groove provided inside the test stand (1), a weighing box (8) being rotatably mounted inside the circular groove, a weighing sensor (13) being mounted inside the weighing box (8), and a weighing plate (9) being provided inside the weighing box (8).

3. The self-compacting concrete homogeneity testing device according to claim 1, characterized in that: The top of the test stand (1) is provided with a display mechanism, and the display mechanism includes a rotating shaft (14) rotatably mounted inside the test stand (1), one end of the rotating shaft (14) extends into the interior of the circular groove and is fixedly connected to the rotating shaft of the weighing box (8), the top of the test stand (1) is fixedly mounted with a display screen (22), and the top of the test stand (1) is fixedly mounted with a controller (11).

4. The self-compacting concrete homogeneity testing device according to claim 1, characterized in that: A transmission mechanism is provided inside the test frame (1), the transmission mechanism comprising a screw (5) rotatably mounted inside the test frame (1), a limiting rod (6) fixedly connected inside the test frame (1) and located on one side of the screw (5), a threaded block (3) being threadedly connected to the outside of the screw (5), a slider (4) being slidably connected to the outside of the limiting rod (6), the threaded block (3) and the slider (4) being fixedly connected to two sides of the container (15), respectively.

5. The self-compacting concrete homogeneity testing device according to claim 1, characterized in that: A testing mechanism is provided inside the test frame (1), and the testing mechanism includes a water spray head (12) fixedly mounted on the top of the inner wall of the test frame (1); a water receiving box (10) is fixedly mounted inside the test frame (1) and below the water spray head (12); a connecting pipe is fixedly connected to the top of the test frame (1); one end of the connecting pipe extends to the inside of the water spray head (12); and the end of the connecting pipe away from the water spray head (12) is fixedly connected to a flange.

6. The self-compacting concrete homogeneity testing device according to claim 3, characterized in that: A servo motor (7) is fixedly mounted on the outside of the test frame (1), and an output shaft of the servo motor (7) passes through the test frame (1) and is fixedly connected to the screw rod (5).

7. The self-compacting concrete homogeneity testing device according to claim 5, characterized in that: Both ends of the bottom of the test stand (1) are fixedly connected to support plates, the bottom end of the water receiving box (10) is fixedly connected to a sewage pipe, and a valve is provided on the outside of the sewage pipe.

8. The self-compacting concrete homogeneity testing device according to claim 6, characterized in that: The servo motor (7), weighing sensor (13) and display screen (22) are all electrically connected to the controller (11).

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