Simulation testing machine for whole process of concrete cracking

Abstract

The utility model relates to a concrete cracking whole process simulation testing machine which comprises a control cabinet, a test chamber is fixed on one side of a shell of the control cabinet, the test chamber is of a box type structure with an opening in the front side, and the test chamber comprises a frame body, a pressure assembly, a loading assembly and a simulation unit. The pressure assembly is arranged above the frame body and comprises a hydraulic system capable of providing pressure downwards, the carrying assembly is fixed below the frame body and comprises a carrying plate and a collecting hopper, the carrying plate is rotationally arranged above the collecting hopper, and the collecting hopper is arranged at the bottom of the frame body in a sliding mode. The aggregate bin can be matched with and block the front side of the test chamber to form a closed test space, the simulation unit is fixed on the inner wall of the test chamber, and components of the simulation unit are electrically connected with the control cabinet, so that the testing machine can simulate a real environment around concrete, and a pressure test can be combined with environmental factor variables and compare environmental data.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment, and in particular to a simulation testing machine for the entire process of concrete cracking. Background Technology

[0002] The concrete compressive strength tester is a testing machine product developed according to the national standard GB / T50081-2002 "Standard for Test Methods of Mechanical Properties of Ordinary Concrete" to measure and judge the performance parameters of concrete, and display test data and results. It is mainly used to measure and test the compressive strength of concrete.

[0003] Many factors can cause concrete blocks to crack under different environmental conditions. Structural, material, and construction factors can all contribute to crack formation, especially in high-altitude areas with large temperature differences, where the surrounding meteorological environment is becoming a key factor in temperature control and crack prevention. The atmospheric environment not only surrounds the entire concrete project in real time, but its unpredictable changes also have a significant impact on the project. In particular, factors such as ambient temperature, humidity, rainfall, wind speed, and solar radiation can all affect the setting and use of concrete blocks, and in severe cases, lead to cracking and damage. Therefore, the influence of atmospheric environmental factors on concrete cracking patterns and the extent of their impact need to be closely monitored and controlled. However, conventional concrete compression testing machines cannot accurately detect the impact of environmental changes on concrete block cracking, that is, they cannot accurately measure the compressive strength of concrete blocks under actual environmental conditions. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a concrete cracking simulation test machine that can simulate temperature, humidity and wind changes in the real environment and more accurately measure the compressive strength of concrete blocks.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is a full-process simulation test machine for concrete cracking, including a control cabinet, with a test chamber fixed on one side of the control cabinet shell, and the test chamber is a box-type structure with an opening on the front.

[0006] The test chamber includes a frame, a pressure assembly, a load assembly, and a simulation unit. The pressure assembly is located above the frame and includes a hydraulic system capable of providing downward pressure.

[0007] The loading assembly is fixed below the frame. The loading assembly includes a loading plate and a hopper. The loading plate is rotatably positioned above the hopper. The hopper is slidably positioned at the bottom of the frame. The hopper can be adapted to seal the front of the test chamber to form a closed test space.

[0008] The simulation unit is fixed to the inner wall of the test chamber.

[0009] The beneficial effects of the above technical solution are as follows: the simulation unit can adjust and change factors such as temperature, humidity and wind force in the test chamber, thereby simulating the real environment of the concrete block in the sealed test chamber. Then, by applying pressure to the concrete block through the downward hydraulic system, the compressive strength of the concrete block under real environment can be accurately monitored. On the other hand, by observing the compressive effect of the concrete during the change of environmental factors, the most suitable environmental data for the concrete block can be determined. This ensures better quality of concrete curing during construction and further improves the service life of the concrete block.

[0010] Furthermore, the collection hopper includes a collection box and a sealing plate. The sealing plate is fixed above the front side wall of the collection box. Slide grooves are opened on both sides of the collection box. Sliding parts are provided on the inner walls of both sides of the bottom of the test chamber. The sliding parts are slidably adapted to the slide grooves. A handle is provided at the front end of the collection box.

[0011] Beneficial effects: The hopper is slidably connected to the bottom of the test chamber, which provides a channel for concrete blocks to leach out of the test chamber and facilitates the collection of concrete fragments after the pressure test.

[0012] Furthermore, the sealing plate is made of a transparent material.

[0013] Beneficial effect: Facilitates observation of the interior of the test chamber from the outside.

[0014] Furthermore, the frame is provided with a connector for fixing the hopper. The connector includes a rotating stop bar and a snap-fit ​​seat. The rotating stop bar is rotatably mounted on the front wall of the test chamber on the left side of the hopper, and the snap-fit ​​seat is correspondingly fixed on the front wall of the test chamber on the right side of the hopper. The rotating stop bar and the snap-fit ​​seat are adapted to snap together so that the rotating stop bar is fixed on the front side of the hopper. A limiting block is provided on the left side of the front wall of the test chamber. The limiting block can prevent the rotating stop bar from rotating further after it has rotated upward to a vertical position.

[0015] Beneficial effects: The rotating stop can block the front of the hopper after it is drawn into the test chamber, preventing concrete fragments from impacting the hopper after it is crushed under pressure and causing it to slide out of the test chamber. The limiting block can keep the upward rotating stop in a vertical position.

[0016] Furthermore, the loading plate is rotatably mounted above the collection box via a rotating shaft, the rotating shaft is rotatably mounted at the bottom of the frame and fixedly mounted on the loading plate, the end of the rotating shaft extending out of the side of the frame is fixed with a rotating handle, and a positioning mechanism is provided on the loading plate.

[0017] Beneficial effect: The load plate can tilt the concrete blocks into the collection hopper below, which facilitates the collection of concrete fragments after the pressure test.

[0018] Furthermore, the positioning mechanism includes a positioning rod, a through hole parallel to the rotating shaft is opened on the loading plate, a corresponding positioning hole is opened on the inner wall of the frame, the positioning rod passes through the through hole of the loading plate and is inserted into the positioning hole in the inner wall of the frame, and a pull ring is fixed at the end of the positioning rod located on the outer side of the frame.

[0019] Beneficial effect: The positioning rod can prevent the loading plate from rotating around the pivot, thereby fixing the position of the loading plate.

[0020] Furthermore, at least one set of the positioning rods is provided.

[0021] Beneficial effects: It ensures that the load-bearing capacity of the load-bearing slab is in a horizontal position while enhancing the load-bearing capacity of the load-bearing slab, thus meeting the requirements of the concrete block compression test.

[0022] Furthermore, the pressure assembly includes a pressure plate, a screw, and a turntable. The screw is threadedly connected to the top of the frame, and the turntable is fixed to the top of the screw. The screw has an internal receiving cavity, and the hydraulic cylinder of the hydraulic system is fixed in the receiving cavity inside the screw. The pressure plate is fixedly connected to the bottom of the hydraulic cylinder.

[0023] Beneficial effects: The hydraulic cylinder directly applies downward pressure to the concrete on the loading plate, and the screw can adjust the height of the pressure plate. In order to pre-clamp the concrete block with the loading plate before the hydraulic cylinder applies pressure, the concrete is prevented from moving horizontally after being compressed.

[0024] Furthermore, the simulation unit includes a temperature simulation system, a humidity simulation system, and a wind simulation system. The temperature simulation system includes a temperature regulator and a temperature sensor, the humidity simulation system includes a humidity regulator and a humidity sensor, and the wind simulation system includes a wind speed regulator and a wind speed sensor. All components of the simulation unit are electrically connected to the control cabinet.

[0025] Beneficial effects: The temperature regulator can regulate the temperature, and the temperature sensor can measure the temperature data; the humidity regulator can regulate the humidity, and the humidity sensor can measure the humidity data; the wind speed regulator can regulate the wind speed, and the wind speed sensor can measure the wind speed data; through electrical connection with the control cabinet, environmental factor variables can be controlled and environmental data can be monitored. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 yes Figure 1 Schematic diagram of the structure after the central hopper is removed;

[0028] Figure 3 yes Figure 1 Schematic diagram of the structure of the central hopper;

[0029] Figure 4yes Figure 1 Schematic diagram of the structure of the medium-load assembly;

[0030] In the diagram: 1-Control cabinet, 2-Test chamber, 3-Frame, 4-Cargo plate, 5-Collection hopper, 6-Pressure plate, 7-Screw, 8-Turntable, 9-Rotating shaft, 10-Rotating handle, 11-Positioning rod, 12-Pull ring, 13-Sliding part, 14-Handle, 15-Collection box, 16-Sealing plate, 17-Rotating stop bar, 18-Snap-fit ​​seat, 19-Limit stop, 20-Simulation unit, 301-Slide groove. Detailed Implementation

[0031] The following is a detailed description of the concrete cracking simulation test machine of this utility model, with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1-4 As shown, this utility model discloses a full-process simulation testing machine for concrete cracking. It includes a control cabinet 1, with a test chamber 2 fixed to one side of the control cabinet 1's shell. The test chamber 2 is a box-type structure with an open front. The test chamber 2 includes a frame 3, a pressure assembly, a load assembly, and a simulation unit 20. The pressure assembly is positioned above the frame 3 and includes a hydraulic system capable of providing downward pressure. The load assembly is fixed below the frame 3 and includes a load plate 4 and a hopper 5. The load plate 4 is rotatably positioned above the hopper 5, and the hopper 5 is slidably positioned on the frame 3. The bottom of the test chamber 2 is sealed, and the hopper 5 can be adapted to form a closed test space by sealing the front side of the test chamber 2. The simulation unit 20 is fixed on the inner wall of the test chamber 2. The simulation unit 20 includes a temperature simulation system, a humidity simulation system and a wind simulation system. The temperature simulation system includes a temperature regulator and a temperature sensor. The humidity simulation system includes a humidity regulator and a humidity sensor. The wind simulation system includes a wind speed regulator and a wind speed sensor. All components of the simulation unit 20 are electrically connected to the control cabinet 1, so that the test machine can simulate the real environment around the concrete. The pressure test can combine environmental factor variables and compare environmental data.

[0033] In this embodiment, the pressure assembly includes a pressure plate 6, a screw 7, and a turntable 8. The screw 7 is threadedly connected to the top of the frame 3, and the turntable 8 is fixed to the top of the screw 7. The screw 7 has a receiving cavity inside, and the hydraulic cylinder of the hydraulic system is fixed in the receiving cavity inside the screw 7. The pressure plate 6 is fixedly connected to the bottom of the hydraulic cylinder. When the concrete block is placed on the loading plate 4, the screw 7 is first rotated by the turntable 8. The screw 7 pushes the pressure plate 6 downward to pre-clamp the concrete block and prevent it from moving horizontally after being compressed. Then, the hydraulic system is started, and the telescopic rod of the hydraulic cylinder pushes the pressure plate 6 to apply pressure to the concrete block.

[0034] In this embodiment, the collection hopper 5 includes a collection box 15 and a sealing plate 16. The sealing plate 16 is fixed above the front side wall of the collection box 15. The sealing plate 16 is made of transparent material, which facilitates observation of the test process inside the test chamber 2 from the outside. The collection box 15 has sliding grooves 301 on both sides. The inner walls of both sides of the bottom of the test chamber 2 are provided with sliding parts 13. The sliding parts 13 are slidably adapted to the sliding grooves 301. The front end of the collection box 15 is provided with a handle 14. The collection hopper 5 is slidably connected to the bottom of the test chamber 2. On the one hand, it provides a channel for concrete blocks to leach out of the test chamber 2. When the collection hopper 5 is put into the test chamber 2, it can be connected with the test chamber 2 as a whole to ensure the overall sealing of the test chamber 2. On the other hand, the collection hopper 5 can collect concrete fragments after the pressure test, which is convenient for hygienic finishing after the pressure test.

[0035] Specifically, the frame 3 is equipped with a connector for fixing the hopper 5. The connector includes a rotating stop bar 17 and a locking seat 18. The rotating stop bar 17 is rotatably mounted on the front wall of the test chamber 2 on the left side of the hopper 5. The locking seat 18 is correspondingly fixed on the front wall of the test chamber 2 on the right side of the hopper 5. When the hopper 5 is retracted into the test chamber 2, the rotating stop bar 17 and the locking seat 18 are fitted and locked together to fix the rotating stop bar 17 to the front side of the hopper 5, preventing concrete fragments after the concrete is crushed under pressure from impacting the hopper 5 and causing the hopper 5 to slide out of the test chamber 2. A limiting block 19 is provided on the left side of the front wall of the test chamber 2. The limiting block 19 can prevent the rotating stop bar 17 from rotating further after it is rotated upward to a vertical position, so as to facilitate the hopper 5 to enter and exit the bottom of the test chamber 2.

[0036] In this embodiment, the loading plate 4 is rotatably mounted above the collection box 15 via a rotating shaft 9. The rotating shaft 9 is rotatably mounted at the bottom of the frame 3 and is fixedly mounted on the loading plate 4. The loading plate 4 can rotate around the rotating shaft 9 to pour concrete blocks into the collection box 15 of the aggregate hopper 5, facilitating the collection of concrete fragments after the pressure test. A rotating handle 10 is fixed to the end of the rotating shaft 9 extending from the side of the frame 3 to facilitate the rotation of the loading plate 4. A positioning mechanism is provided on the loading plate 4, which includes a positioning rod 11. A through hole parallel to the rotating shaft 9 is opened on the loading plate 4, and a corresponding positioning hole is opened on the inner wall of the frame 3. The positioning rod 11 passes through the through hole of the loading plate 4 and is inserted into the positioning hole on the inner wall of the frame 3, which ensures that the loading plate 4 is in a horizontal state and enhances the load-bearing capacity of the loading plate 4. The end of the positioning rod 11 located on the outside of the frame 3 is fixed with a pull ring 12, which makes it easy to remove the positioning rod 11 from the frame 3. At least one set of positioning rods 11 is provided. In other embodiments, multiple sets of positioning rods 11 can further enhance the load-bearing capacity of the loading plate 4.

[0037] In use, firstly, rotate the rotating stop 17 upwards, and keep it vertical by the limiting stop 19. Then, pull the hopper 5 out of the test chamber 2 to determine the state of the carrying plate 4. Rotate the handle 10 to rotate the carrying plate 4 to a horizontal state. Then, insert the positioning rod 11 through the through hole of the carrying plate 4 into the positioning hole on the inner wall of the frame 3. Place the concrete block to be tested in the center of the carrying plate 4. Then, rotate the turntable 8 to move the screw 7 downwards to pre-clamp the concrete block. After that, align the groove 301 of the hopper 5 with the sliding part 13 of the test chamber 2 from the bottom of the test chamber 2 and close it. Then, rotate the rotating stop 17 downwards to make it fit and engage with the locking seat 18. On the interface of control cabinet 1, the environmental factor data under real environment is simulated by the regulator of simulation unit 20. The hydraulic cylinder of the hydraulic system is started. The hydraulic cylinder pushes the pressure plate 6 downward to apply pressure to the concrete block. The pressure condition of the concrete block is observed through the transparent sealing plate 16. When the concrete block cracks and breaks, the hydraulic cylinder is closed and the test data is recorded. Then, the hydraulic cylinder is started to raise the pressure plate 6. The positioning rod 11 is pulled out from the frame 3 by the pull ring 12. Then, the shaft 9 is rotated by turning the handle 10, which drives the load plate 4 to flip, thereby dumping the concrete fragments on the load plate 4 into the collection box 15 of the aggregate hopper 5. Finally, the rotating stop bar 17 is rotated upward again and the aggregate hopper 5 is slid out from the bottom of the test chamber 2 by the handle 14.

[0038] The concrete cracking simulation test machine of this utility model has the following advantages: First, the simulation unit 20 in the test chamber 2 can simulate the temperature, humidity and wind force in the real environment, so that the pressure data results of the concrete cracking test are more reliable; Second, the hopper 5 includes a sealing plate 16, which can seal the test chamber 2 into a closed space, so that concrete fragments will not splash out of the test chamber 2 during the concrete pressure test, making the pressure test safer; Third, the loading plate 4 is rotatably set above the hopper 5. After the pressure test, the concrete fragments can be quickly collected by flipping the loading plate 4, improving the efficiency and hygiene of the pressure test machine.

[0039] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A simulation testing machine for the entire process of concrete cracking, characterized in that, Includes a control cabinet (1), and a test chamber (2) is fixed on one side of the shell of the control cabinet (1). The test chamber (2) is a box-type structure with an opening on the front. The test chamber (2) includes a frame (3), a pressure assembly, a load assembly, and a simulation unit (20). The pressure assembly is located above the frame (3) and includes a hydraulic system capable of providing downward pressure. The loading assembly is fixed below the frame (3). The loading assembly includes a loading plate (4) and a hopper (5). The loading plate (4) is rotatably positioned above the hopper (5). The hopper (5) is slidably positioned at the bottom of the frame (3). The hopper (5) can be adapted to seal the front side of the test chamber (2) to form a closed test space. The simulation unit (20) is fixed to the inner wall of the test chamber (2).

2. The concrete cracking simulation test machine according to claim 1, characterized in that, The collection hopper (5) includes a collection box (15) and a sealing plate (16). The sealing plate (16) is fixed above the front side wall of the collection box (15). Slide grooves (301) are opened on both sides of the collection box (15). Sliding parts (13) are provided on the inner walls of both sides of the bottom of the test chamber (2). The sliding parts (13) are slidably adapted to the slide grooves (301). A handle (14) is provided at the front end of the collection box (15).

3. The concrete cracking simulation testing machine according to claim 2, characterized in that, The sealing plate (16) is made of transparent material.

4. The concrete cracking simulation testing machine according to claim 2, characterized in that, The frame (3) is provided with a connector for fixing the hopper (5). The connector includes a rotating stop (17) and a snap-fit ​​seat (18). The rotating stop (17) is rotatably mounted on the front wall of the test chamber (2) on the left side of the hopper (5). The snap-fit ​​seat (18) is fixed on the front wall of the test chamber (2) on the right side of the hopper (5). The rotating stop (17) and the snap-fit ​​seat (18) are fitted and snapped together so that the rotating stop (17) is fixed on the front side of the hopper (5). A limiting block (19) is provided on the left side of the front wall of the test chamber (2). The limiting block (19) can prevent the rotating stop (17) from rotating further after it rotates upward to a vertical position.

5. A concrete cracking simulation testing machine according to claim 2, characterized in that, The loading plate (4) is rotatably mounted above the collection box (15) via a rotating shaft (9). The rotating shaft (9) is rotatably mounted at the bottom of the frame (3) and is fixedly mounted on the loading plate (4). The rotating shaft (9) extends out of the side of the frame (3) and a rotating handle (10) is fixedly mounted on the loading plate (4). A positioning mechanism is provided on the loading plate (4).

6. A concrete cracking simulation testing machine according to claim 5, characterized in that, The positioning mechanism includes a positioning rod (11), a through hole parallel to the rotating shaft (9) is opened on the loading plate (4), a positioning hole is opened on the inner wall of the frame (3), the positioning rod (11) passes through the through hole of the loading plate (4) and is inserted into the positioning hole on the inner wall of the frame (3), and the end of the positioning rod (11) located on the outside of the frame (3) is fixed with a pull ring (12).

7. A concrete cracking simulation testing machine according to claim 6, characterized in that, At least one set of the positioning rods (11) are provided.

8. A concrete cracking simulation testing machine according to any one of claims 1-7, characterized in that, The pressure assembly includes a pressure plate (6), a screw (7) and a turntable (8). The screw (7) is threadedly connected to the top of the frame (3). The turntable (8) is fixed to the top of the screw (7). The screw (7) has a receiving cavity inside. The hydraulic cylinder of the hydraulic system is fixed in the receiving cavity inside the screw (7). The pressure plate (6) is fixedly connected to the bottom of the hydraulic cylinder.

9. A concrete cracking simulation testing machine according to any one of claims 1-7, characterized in that, The simulation unit (20) includes a temperature simulation system, a humidity simulation system and a wind simulation system. The temperature simulation system includes a temperature regulator and a temperature sensor. The humidity simulation system includes a humidity regulator and a humidity sensor. The wind simulation system includes a wind speed regulator and a wind speed sensor. All components of the simulation unit (20) are electrically connected to the control cabinet (1).

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