Concrete block compressive strength detection device

Abstract

The utility model provides a concrete block compressive strength detection device which comprises a platform and a detection mechanism, the top surface of the platform is provided with a cylinder, the cylinder is rotatably sleeved with a turntable, the top surface of the cylinder is provided with a driving mechanism, the driving mechanism is used for driving the turntable to rotate, the top of the turntable is provided with an annular groove, and the opposite inner wall of the annular groove is provided with a boss. An electric push rod is arranged on the side face of the boss, the telescopic end of the electric push rod is connected with a positioning plate, a test piece is arranged in the middle of the positioning plate, the detection mechanism is arranged on the top face of the platform and used for providing pressure for the top face of the test piece, and the cleaning mechanism is arranged above the annular groove and used for cleaning chippings generated in the test. The concrete block loading device is provided with the annular groove, a plurality of concrete block test pieces can be loaded at a time, the time of repeated loading in a test is shortened, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, and in particular to a device for testing the compressive strength of concrete blocks. Background Technology

[0002] Concrete blocks, a new type of wall material, are made using cement as a binder, combined with aggregates such as sand, fly ash, and silica-containing tailings, through processes such as mechanical molding and autoclaving. They are characterized by their light weight, excellent thermal insulation performance, and good sound absorption, and are widely used in building load-bearing walls, infill walls, and thermal insulation projects. With the development of green building, concrete blocks, due to their high raw material utilization rate and low production energy consumption, have become the mainstream choice to replace traditional clay bricks.

[0003] In engineering practice, the compressive strength testing of concrete blocks must follow a standardized procedure. First, samples must be randomly selected from the production batch and prepared into cubic specimens that meet the test size standards. The specimens should be dried to the required moisture content under suitable temperature and humidity and placed indoors for at least 6 hours before the compressive strength test. During testing, the specimen is placed at the center of the lower platen of a material testing press, with the pressure direction perpendicular to the gas emission direction of the product. The load is applied continuously and uniformly at a rate of (2.0 ± 0.5) kN / s until the specimen fails. The failure load (p) is recorded. Immediately after the test, the mass of all or part of the failed specimen should be weighed, and then dried at (105 ± 5) °C to constant weight. The moisture content is then calculated.

[0004] The existing testing equipment has the following problems: it can only test one concrete block at a time. When conducting batch testing, the next specimen can only be clamped after one test is completed. The whole process is time-consuming and labor-intensive, and the testing efficiency is low. Traditional equipment requires manual cleaning of broken specimens, which results in a long testing cycle and cannot meet the needs of batch testing. Utility Model Content

[0005] In view of this, the present invention proposes a device for testing the compressive strength of concrete blocks in order to solve the problems mentioned above.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A device for testing the compressive strength of concrete blocks includes a platform, a testing mechanism, and a cleaning mechanism. A cylinder is mounted on the top surface of the platform, and a turntable is rotatably mounted on the cylinder. A driving mechanism is located on the top surface of the cylinder to drive the turntable to rotate. An annular groove is located on the top of the turntable, and a boss is located on the inner wall of the annular groove. A first electric push rod is located on the side of the boss, and its telescopic end is connected to a positioning plate. A specimen is sandwiched between two positioning plates. The testing mechanism is located on the top surface of the platform and is used to apply pressure to the top surface of the specimen. The cleaning mechanism is located above the annular groove and is used to clean debris generated during the test.

[0008] Preferably, the driving mechanism includes a drive motor, a gear, and a gear ring. The drive motor is located on the top surface of the cylinder, and its output shaft drives the gear. The gear ring is located on the top surface of the rotating shaft and meshes with the gear.

[0009] Preferably, the detection mechanism includes a support plate, a top plate, a hydraulic rod, a pressure plate, and a controller. The support plate has an opening at its bottom, and its two ends are fixed to the cylinder and the top surface of the platform, respectively. The top plate is located on the top of the support plate, the hydraulic rod is located on the bottom surface of the top plate, and its telescopic end is connected to the pressure plate. The controller is located on the top surface of the top plate and is electrically connected to the hydraulic rod.

[0010] Preferably, the bottom of the annular groove is provided with through holes, which are evenly distributed around the axis of the turntable.

[0011] Preferably, the cleaning mechanism includes an L-shaped frame, a second electric push rod, a lifting plate, and vertical brush bristles. The L-shaped frame is mounted on the top surface of the cylinder, the second electric push rod is mounted on the bottom surface of the L-shaped frame, and its telescopic end is connected to the lifting plate. The lifting plate is located above the annular groove, and the vertical brush bristles are mounted on the bottom surface of the lifting plate.

[0012] Preferably, the cleaning mechanism further includes lateral brush bristles, which are disposed opposite each other on both sides of the lifting plate.

[0013] Preferably, a waste bin is also included, the waste bin having an open top and located below the vertical bristles.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model is provided with an annular groove, and multiple concrete block specimen clamping positions are provided in the annular groove, which can clamp multiple specimens at one time, reduce the time of repeated installation in the test, and improve the efficiency of compressive strength testing.

[0016] 2. A through hole is provided. After the compressive strength test of the concrete block specimen is completed, the cleaning mechanism is started. The second electric actuator is activated, and its telescopic end extends to drive the lifting plate to descend, so that the vertical brush bristles abut against the bottom of the annular groove. When the generated debris is rotated with the turntable, the debris is swept by the vertical brush bristles. The debris and waste can be cleaned out of the annular groove through the through hole and fall into the waste box below, which is conducive to keeping the clamping position clean and the subsequent centralized treatment of waste. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of a concrete block compressive strength testing device according to the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of a concrete block compressive strength testing device according to the present invention;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the cleaning mechanism of this utility model;

[0022] Figure 5 This is a top view structural diagram of the present invention;

[0023] Reference numerals: 1. Platform; 2. Cylinder; 3. Turntable; 4. Drive motor; 5. Gear; 6. Gear ring; 7. Annular groove; 8. Through hole; 9. Boss; 10. First electric push rod; 11. Positioning plate; 12. Specimen; 13. Top plate; 14. Support plate; 15. Opening; 16. Hydraulic rod; 17. Pressure plate; 18. L-shaped frame; 19. Second electric push rod; 20. Controller; 21. Lifting plate; 22. Vertical brush; 23. Lateral brush; 24. Waste bin. Detailed Implementation

[0024] To better understand the technical content of this utility model, a specific embodiment is provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0025] See Figures 1 to 5This utility model provides a concrete block compressive strength testing device, including a platform 1, a testing mechanism, and a cleaning mechanism. The top surface of the platform 1 is provided with a cylinder 2, and a turntable 3 is rotatably mounted on the cylinder 2. The top surface of the cylinder 2 is provided with a driving mechanism for driving the turntable 3 to rotate. The top of the turntable 3 is provided with an annular groove 7, and the inner wall of the annular groove 7 is provided with a boss 9. The side of the boss 9 is provided with a first electric push rod 10, the telescopic end of which is connected to a positioning plate 11. A specimen 12 is sandwiched between the two positioning plates 11. The testing mechanism is located on the top surface of the platform 1 and is used to provide pressure to the top surface of the specimen 12. The cleaning mechanism is located above the annular groove 7 and is used to clean up the debris generated during the test.

[0026] When the testing device is working, multiple concrete block specimens 12 to be tested are first placed sequentially in the middle of the corresponding positioning plates 11 on the turntable 3. The first electric actuator 10 is activated, causing the positioning plates 11 to clamp and fix the specimens 12. The drive motor 4 is then activated, driving the turntable 3 to rotate and rotate the first specimen 12 to the test position of the testing mechanism. Then, the testing mechanism is activated, applying pressure to the top surface of the specimen 12 until it breaks. The test data is recorded. After testing one specimen 12, the concrete block specimen 12 to be tested is removed. Then, the drive motor 4 is activated again, driving the turntable 3 to rotate and rotate the second specimen 12 to the test position of the testing mechanism. The testing mechanism is then activated for testing. Simultaneously, the cleaning mechanism is activated. When the turntable 3 rotates and drives the test position to rotate, the cleaning mechanism can clean up the debris and dust generated during the testing process. By following the above operation, this testing device can transfer multiple specimens 12 at once and then complete multiple concrete block compressive strength tests sequentially, reducing the time of repeated installation and improving the efficiency of compressive strength testing. In addition, when half of the positioning blocks are completed, the empty space in the middle of the positioning plate 11 will rotate to the other side of the testing mechanism. At this time, the concrete block specimen 12 can be placed in the middle of the positioning plate and the positioning can be completed, so that the testing device can continue to perform testing and improve the applicability of the testing device.

[0027] Preferably, the driving mechanism includes a drive motor 4, a gear 5, and a gear ring 6. The drive motor 4 is located on the top surface of the cylinder 2, and its output shaft is connected to the gear 5. The gear ring 6 is located on the top surface of the rotating shaft and meshes with the gear 5. The drive motor 4 is a stepper motor.

[0028] When the testing device is working, the drive motor 4 is started. The drive motor 4 rotates and drives the gear 5 to rotate. The gear 5 meshes with the gear ring 6. The rotation of the gear 5 drives the gear ring 6 to rotate, thereby driving the turntable 3 to rotate. The turntable 3 drives the specimen 12 to rotate to the test position, which can easily realize precise position control and speed control. The rotation speed and rotation angle of the turntable 3 can be flexibly adjusted according to the test requirements to meet the requirements of different test scenarios.

[0029] Preferably, the detection mechanism includes a support plate 14, a top plate 13, a hydraulic rod 16, a pressure plate 17, and a controller 20. The support plate 14 has an opening 15 at its bottom, and its two ends are fixed to the top surface of the cylinder 2 and the platform 1, respectively. The top plate 13 is located on the top of the support plate 14. The hydraulic rod 16 is located on the bottom surface of the top plate, and its telescopic end is connected to the pressure plate 17. The controller 20 is located on the top surface of the top plate 13 and is electrically connected to the hydraulic rod 16.

[0030] When the testing device is working, the drive mechanism drives the turntable 3 to rotate, bringing the specimen 12 to the pressurized position. The pressurized position is directly below the pressure plate 17. The hydraulic rod 16 is activated, and its telescopic end extends to bring the pressure plate 17 down. When the bottom surface of the pressure plate 17 abuts against the top surface of the specimen 12, the load is applied continuously and evenly until the specimen 12 is destroyed. The destruction load is recorded.

[0031] Preferably, the bottom of the annular groove 7 is provided with through holes 8, which are evenly distributed around the axis of the turntable 3.

[0032] The through holes 8 are evenly distributed around the axis of the turntable 3. After the concrete block compressive strength test is completed, the debris and waste generated during the test of the specimen 12 can be cleaned out from the annular groove 7 through the through holes 8.

[0033] Preferably, the cleaning mechanism includes an L-shaped frame 18, a second electric push rod 19, a lifting plate 21, and vertical brush bristles 22. The L-shaped frame 18 is located on the top surface of the cylinder 2, the second electric push rod 19 is located on the bottom surface of the L-shaped frame 18, and its telescopic end is connected to the lifting plate 21. The lifting plate 21 is located above the annular groove 7, and the vertical brush bristles 22 are located on the bottom surface of the lifting plate 21.

[0034] Vertical bristles 22 are located on the bottom surface of the lifting plate 21, and the lifting plate 21 is located above the annular groove 7. By adjusting the height of the lifting plate 21 through the second electric push rod 19, the vertical bristles 22 can be closely attached to the bottom and sides of the annular groove 7, ensuring that the debris in the annular groove 7 can be effectively cleaned, keeping the annular groove 7 clean, and preventing debris from remaining in the annular groove 7, which would affect the installation of the next test piece 12.

[0035] Preferably, the cleaning mechanism further includes lateral brush bristles 23, which are disposed opposite to each other on both sides of the lifting plate 21.

[0036] After the concrete block compressive strength test is completed, the turntable 3 is rotated. The debris and dust generated during the test of the specimen 12 can adhere to the side wall of the annular groove 7. The lateral brush 23 can clean the side wall of the annular groove 7 and keep the annular groove 7 clean.

[0037] Preferably, a waste bin 24 is also included, the waste bin 24 being open at the top and located below the vertical bristles 22.

[0038] After the concrete block compressive strength test is completed, the turntable 3 is rotated. At the bottom of the annular groove 7, there are debris generated during the test of the specimen 12. As the turntable 3 rotates, the debris is blocked by the vertical bristles 22, falls through the through hole 8 and enters the waste bin 24, which is beneficial for the subsequent centralized treatment of waste.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for testing the compressive strength of concrete blocks, characterized in that, The device includes a platform, a testing mechanism, and a cleaning mechanism. The platform has a cylinder on its top surface, and a turntable is rotatably mounted on the cylinder. A driving mechanism is located on the top surface of the cylinder to drive the turntable to rotate. The turntable has an annular groove on its top, and a boss is located on the inner wall of the annular groove. A first electric push rod is located on the side of the boss, and its telescopic end is connected to a positioning plate. A specimen is sandwiched between two positioning plates. The testing mechanism is located on the top surface of the platform and is used to provide pressure to the top surface of the specimen. The cleaning mechanism is located above the annular groove and is used to clean up debris generated during the test.

2. The device for testing the compressive strength of concrete blocks according to claim 1, characterized in that, The driving mechanism includes a drive motor, a gear, and a gear ring. The drive motor is located on the top surface of the cylinder, and its output shaft drives the gear. The gear ring is located on the top surface of the rotating shaft and meshes with the gear.

3. The device for testing the compressive strength of concrete blocks according to claim 1, characterized in that, The detection mechanism includes a support plate, a top plate, a hydraulic rod, a pressure plate, and a controller. The support plate has an opening at the bottom, and its two ends are fixed to the cylinder and the top surface of the platform, respectively. The top plate is located on the top of the support plate. The hydraulic rod is located on the bottom surface of the top plate, and its telescopic end is connected to the pressure plate. The controller is located on the top surface of the top plate and is electrically connected to the hydraulic rod.

4. The device for testing the compressive strength of concrete blocks according to claim 1, characterized in that, The bottom of the annular groove is provided with through holes, which are evenly distributed around the axis of the turntable.

5. The device for testing the compressive strength of concrete blocks according to claim 1, characterized in that, The cleaning mechanism includes an L-shaped frame, a second electric push rod, a lifting plate, and vertical brush bristles. The L-shaped frame is located on the top surface of the cylinder, the second electric push rod is located on the bottom surface of the L-shaped frame, and its telescopic end is connected to the lifting plate. The lifting plate is located above the annular groove, and the vertical brush bristles are located on the bottom surface of the lifting plate.

6. The device for testing the compressive strength of concrete blocks according to claim 5, characterized in that, The cleaning mechanism also includes lateral brush bristles, which are arranged opposite each other on both sides of the lifting plate.

7. The device for testing the compressive strength of concrete blocks according to claim 1, characterized in that, It also includes a waste bin, which has an open top and is located below the vertical bristles.

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