A load testing device for autoclaved aerated concrete panels

Abstract

The utility model discloses a load testing arrangement of autoclaved aerated concrete board, including base, be equipped with gantry on the base, be equipped with material pressing subassembly to the gantry, material pressing subassembly includes the pressing plate, the pressing plate longitudinal sliding cooperation is connected in the gantry, be equipped with the vertical sliding cooperation upper plate on the base, the upper plate is hinged with one end of first hydraulic cylinder and second hydraulic cylinder, the other end of first hydraulic cylinder and second hydraulic cylinder is hinged with the pressure -bearing plate, the below of pressing plate is equipped with the bearing block, be equipped with the material discharge button on the base, mainly can convenient clearance after the concrete test block of breaking, improve the stability of equipment simultaneously, improve the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of load testing technology for concrete slabs, and in particular to a load testing device for autoclaved aerated concrete slabs. Background Technology

[0002] Autoclaved aerated concrete (AAC) panels are a lightweight, porous, and environmentally friendly building material made primarily from cement, lime, and silica sand, with varying amounts of corrosion-resistant steel mesh added according to structural requirements. Produced through high-temperature, high-pressure, and steam curing, AAC panels exhibit a porous crystalline structure. Their density is lower than that of ordinary cementitious materials, and they possess unparalleled properties such as fire resistance, sound insulation, heat insulation, and thermal insulation. Load testing is required during the production of AAC panels to calculate the strength of the test blocks. Existing technology discloses a load testing device for AAC panels (publication number CN218036132U). This device, through the use of components in the load testing mechanism, facilitates the load testing of AAC panels, thereby improving the accuracy of the test. The inclusion of protective components provides protection during load testing, reducing splashing and improving safety. However, a drawback is that the concrete debris after testing is not easily disposed of. The existing technology discloses a concrete pressure testing device (CN107702981A) that can automatically clean concrete debris. The device works by using a pressure plate pushed upwards by the top plate and pressed down by the weight of the bulldozer blade. The telescopic rod retracts into the hydraulic cylinder, causing the pressure plate to gradually change from a horizontal to an inclined state. The concrete slides down due to the inclination of the pressure plate and falls into the soil collection box under the push of the bulldozer blade. The concrete can be quickly cleaned by pulling the suction plate. However, the pressure plate is hinged to the partition plate, hydraulic cylinder, and telescopic rod. This means that the pressure plate is mainly supported by the junction on the partition plate and the hydraulic cylinder pushing the telescopic rod. When the pressure plate presses down on the concrete, the hydraulic cylinder and telescopic rod are prone to damage, or the hydraulic cylinder may retract, affecting the equipment's lifespan and testing accuracy. Utility Model Content

[0003] In view of the above-mentioned prior art, the present invention provides a load testing device for autoclaved aerated concrete slabs, which can facilitate the cleaning of broken concrete test blocks, improve the stability of the equipment, increase the service life of the equipment and the accuracy of the test.

[0004] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0005] A load testing device for autoclaved aerated concrete (AAC) slabs includes a base, a gantry frame on the base, a pressing assembly on the gantry frame, a pressing plate on the pressing assembly, the pressing plate being longitudinally slidably connected to the gantry frame, an upper plate on the base being vertically slidably connected, one end of a first hydraulic cylinder and a second hydraulic cylinder being hinged to the upper plate, the other end of the first hydraulic cylinder and the second hydraulic cylinder being hinged to a bearing plate, a load-bearing block being provided below the pressing plate, and a discharge button on the base.

[0006] Furthermore, the pressing assembly includes a pressing hydraulic cylinder, which is mounted on the gantry frame, and the output end of the pressing hydraulic cylinder is connected to the pressing plate.

[0007] Furthermore, the base is provided with a base plate, the base plate is provided with a guide rail, the guide rail is mounted on the base plate, the guide rail is fitted with a slider, and the upper plate is mounted on the slider.

[0008] Furthermore, the pressure plate has side plates on both sides, a scraper at the rear of the pressure plate, a long groove on the side plate, a pulley that cooperates with the long groove on the scraper, and a transparent plate at the front of the pressure plate. The transparent plate is installed at the front end of the pressure plate.

[0009] Furthermore, the pressure plate is provided with a U-shaped lug, the U-shaped lug is provided with a strip hole, and the first hydraulic cylinder and the second hydraulic cylinder are respectively provided with pins that cooperate with the strip hole.

[0010] Furthermore, a feeding hydraulic cylinder is provided on the base plate, and the output end of the feeding hydraulic cylinder is connected to the upper plate.

[0011] Furthermore, the gantry frame is provided with a crossbeam and a connecting plate. The connecting plate is fixed to the inner side of the gantry frame. The connecting plate array is provided with a plurality of mounting holes. The crossbeam is mounted on the connecting plate, and the pressure hydraulic cylinder is mounted on the crossbeam.

[0012] The beneficial effects of this utility model are as follows: A concrete test block is placed on the bearing plate, and the upper plate is moved forward to below the pressure plate (i.e., the test position). The first and second hydraulic cylinders are driven to retract, causing the bearing plate to fall onto the load-bearing block. The pressure plate is then driven to press down on the concrete test block for testing. After the test is completed, the first and second hydraulic cylinders are driven to extend and lift the bearing plate. The upper plate is moved back to its initial position, and then the discharge button is pressed to start the process. This causes the first hydraulic cylinder to continue extending while the second hydraulic cylinder retracts, causing the bearing plate to tilt and discharge the concrete test block. The load-bearing block supports the bearing plate against the pressure from the pressure block, providing protection and support. This prevents excessive force on the first and second hydraulic cylinders, which could affect their service life and testing accuracy. The cooperation between the first and second hydraulic cylinders allows the bearing plate to tilt, facilitating the discharge of the concrete test block, reducing labor intensity, lowering the risk of injury, and resulting in a simple structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the load testing device for autoclaved aerated concrete panels according to an embodiment of this application;

[0014] Figure 2 This is a schematic diagram of the load testing device for autoclaved aerated concrete panels according to an embodiment of this application;

[0015] Figure 3 This is an enlarged view of point A in an embodiment of this application;

[0016] Figure 4 This is a structural schematic diagram of the pressure plate in an embodiment of this application;

[0017] Explanation of icon numbers:

[0018] 1. Base; 2. Gantry frame; 3. Material pressing assembly; 4. Pressure plate; 5. Upper plate; 6. First hydraulic cylinder; 7. Second hydraulic cylinder; 8. Pressure plate; 9. Load-bearing block; 10. Feed button; 11. Discharge button; 12. Material pressing hydraulic cylinder; 13. Base plate; 14. Guide rail; 15. Slider; 16. Side plate; 17. Scraper; 18. Long groove; 19. Pulley; 20. Transparent plate; 21. U-shaped ear; 22. Strip hole; 23. Pin; 24. Feeding hydraulic cylinder; 25. Crossbeam; 26. Connecting plate; 27. Mounting hole. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0020] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] Example 1

[0022] See attached document Figure 1-4This application provides a load testing device for autoclaved aerated concrete (AAC) slabs, including a base 1, a gantry frame 2 mounted on the base 1, and a pressing assembly 3 for pressing concrete test blocks to perform load testing. The pressing assembly 3 includes a pressure plate 4, which is longitudinally slidably connected to the gantry frame 2 and can move up and down. When the pressure plate 4 moves downward, it presses and squeezes the concrete test block for testing. The base 1 has a vertically slidably mounted upper plate 5, which can move back and forth. One end of a first hydraulic cylinder 6 and a second hydraulic cylinder 7 are hinged to the upper plate 5. There are two of each of the first hydraulic cylinder 6 and the second hydraulic cylinder 7. The fixed ends of one hydraulic cylinder 6 are all hinged to the same side of the upper plate 5, and the fixed ends of two second hydraulic cylinders 7 are all hinged to the other side of the upper plate 5. The first hydraulic cylinder 6 and the second hydraulic cylinder 7 are installed in a cross configuration. The output ends of the first hydraulic cylinder 6 and the second hydraulic cylinder 7 are all hinged to a pressure plate 84. The pressure plate 84 is used to hold concrete test blocks. When the first hydraulic cylinder 6 and the second hydraulic cylinder 7 extend / retract by the same length, the pressure plate 84 can rise / fall in parallel. When the first hydraulic cylinder 6 extends and the second hydraulic cylinder 7 retracts, the pressure plate 84 tilts outward, which facilitates the discharge of concrete test blocks. A load-bearing structure is provided below the pressure plate 4. Block 9, the load-bearing block 9 is used for load bearing. When the first hydraulic cylinder 6 and the second hydraulic cylinder 7 extend / retract by the same length, the pressure plate 84 can rise / fall in parallel. During feeding, the first hydraulic cylinder 6 and the second hydraulic cylinder 7 extend simultaneously, causing the pressure plate 84 to rise and avoid the load-bearing block 9. After the pressure plate 84 moves above the load-bearing block 9, the first hydraulic cylinder 6 and the second hydraulic cylinder 7 retract simultaneously, causing the pressure plate 84 to fall onto the load-bearing block 9. Then the pressure plate 4 is lowered for testing. The base 1 is provided with a discharge button 11, which is electrically connected to the first hydraulic cylinder 6 and the second hydraulic cylinder 7. After the test is completed, the upper plate 5 is moved towards... The discharge button 11 is moved outward. Clicking the discharge button 11 activates the first hydraulic cylinder 6 and the second hydraulic cylinder 7, causing the first hydraulic cylinder 6 to extend further while the second hydraulic cylinder 7 retracts. This causes the pressure plate 84 to tilt and pour out the concrete test block. During operation, the upper plate 5 is in its initial position (at this time, both the first hydraulic cylinder 6 and the second hydraulic cylinder 7 are extended, making the pressure plate 84 higher than the load-bearing block 9). The concrete test block is placed on the pressure plate 84. The upper plate 5 is moved forward to below the pressure plate 4 (i.e., the test position), driving the first hydraulic cylinder 6 and the second hydraulic cylinder 7 to retract, causing the pressure plate 84 to fall onto the load-bearing block 9. The pressure plate 4 is then driven to press down on the concrete test block. After the test is completed...The first hydraulic cylinder 6 and the second hydraulic cylinder 7 are driven to extend and lift the pressure plate 84, moving the upper plate 5 back to its initial position. Then, the discharge button 11 is pressed to start the process, causing the first hydraulic cylinder 6 to continue extending while the second hydraulic cylinder 7 retracts. This allows the pressure plate 84 to tilt and discharge the concrete test block. The load-bearing block 9 supports the pressure plate 84 against the pressure from the pressure block, providing protection and support. This prevents excessive force on the first hydraulic cylinder 6 and the second hydraulic cylinder 7, which could affect their service life and testing accuracy. The cooperation between the first hydraulic cylinder 6 and the second hydraulic cylinder 7 allows the pressure plate 84 to tilt, facilitating the discharge of the concrete test block, reducing labor intensity, lowering the risk of injury, and resulting in a simple structure.

[0023] Preferably, the pressing assembly 3 includes a pressing hydraulic cylinder 12, which is mounted on the gantry frame 2. The output end of the pressing hydraulic cylinder 12 is connected to the pressure plate 4. The pressing hydraulic cylinder 12 drives the pressure plate 4 to press down the concrete test block. The hydraulic transmission torque is large, the structure is simple, and it is easy to control.

[0024] Preferably, the base 1 is provided with a base plate 13, the base plate 13 is provided with a guide rail 14, the guide rail 14 is mounted on the base plate 13, the guide rail 14 is fitted with a slider 15, and the upper plate 5 is mounted on the slider 15. Through the cooperation of the guide rail 14 and the slider 15, friction is reduced and transmission efficiency is improved.

[0025] Preferably, the pressure plate 84 has side plates 16 on both sides and a scraper 17 at the rear. The side plates 16 have long grooves 18, and the scraper 17 has pulleys 19 that cooperate with the long grooves 18. The pulleys are installed on both sides of the scraper 17. The pulleys 19 roll within the long grooves 18 to reduce friction. The long grooves 18 also serve as guides, facilitating the back-and-forth movement of the scraper 17 for cleaning. A transparent plate 20 is provided in front of the pressure plate 84. The transparent plate 20 is installed at the front end of the pressure plate 84. The side plates 16 prevent concrete test blocks from breaking and falling everywhere. The scraper 17 scrapes the concrete test blocks outward to complete the cleaning, improving cleaning efficiency and simplifying operation. The transparent plate 20 prevents concrete test block fragments from flying out and injuring people. The transparent plate 20 facilitates observation of the test results and has a simple structure.

[0026] Example 2

[0027] See attached document Figure 1-4The difference between this embodiment and Embodiment 1 is that the pressure plate 84 is provided with a U-shaped ear 21, the U-shaped ear 21 is provided with a strip hole 22, and the first hydraulic cylinder 6 and the second hydraulic cylinder 7 are respectively provided with pins 23 that cooperate with the strip hole 22. The strip hole 22 provides a buffering effect when the first hydraulic cylinder 6 and the second hydraulic cylinder 7 contract and drive the pressure plate 84 to fall onto the load-bearing block 9, so as to avoid the pressure plate 4 pressing down when the pressure plate 84 does not fall completely (or falls tilted) onto the load-bearing block 9, which would cause the first hydraulic cylinder 6 and the second hydraulic cylinder 7 to be damaged by force, reduce the processing accuracy of the pressure plate 84 and the installation accuracy of each part.

[0028] Preferably, the base plate 13 is provided with a feeding hydraulic cylinder 24, the output end of which is connected to the upper plate 5. The feeding hydraulic cylinder 24 drives the upper plate 5 to move back and forth, which is convenient and quick. The base plate 13 is provided with a feeding button 10, which is electrically connected to the feeding hydraulic cylinder 24. Clicking the feeding button 10 will drive the feeding hydraulic cylinder 24 to move the upper plate 5, which is easy to operate.

[0029] Preferably, the gantry frame 2 is provided with a crossbeam 25 and a connecting plate 26. The connecting plate 26 is fixed to the inner side of the gantry frame 2. The connecting plate 26 is provided with an array of mounting holes 27. The crossbeam 25 is installed on the mounting holes 27 of the connecting plate 26 by bolts. The pressing hydraulic cylinder 12 is installed on the crossbeam 25. The mounting holes 27 of the connecting plate 26 facilitate the adjustment of the position of the pressing hydraulic cylinder 12 according to the height of the concrete test block. This allows for the testing of concrete test blocks of different heights, reduces equipment costs, and simplifies the structure.

[0030] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. A load testing device for autoclaved aerated concrete (AAC) panels, characterized in that, The device includes a base, on which a gantry frame is mounted. The gantry frame is equipped with a pressing assembly, which includes a pressing plate. The pressing plate is longitudinally slidably connected to the gantry frame. The base has a vertically slidably mounted upper plate. One end of a first hydraulic cylinder and a second hydraulic cylinder are hinged to the upper plate. The other end of the first hydraulic cylinder and the second hydraulic cylinder are hinged to a pressure plate. A load-bearing block is located below the pressing plate. The base has a discharge button.

2. The load testing device for autoclaved aerated concrete (AAC) panels according to claim 1, characterized in that, The pressing assembly includes a pressing hydraulic cylinder, which is mounted on the gantry frame, and the output end of the pressing hydraulic cylinder is connected to the pressing plate.

3. The load testing device for autoclaved aerated concrete (AAC) panels according to claim 1, characterized in that, The base is provided with a base plate, the base plate is provided with a guide rail, the guide rail is mounted on the base plate, the guide rail is fitted with a slider, and the upper plate is mounted on the slider.

4. The load testing device for autoclaved aerated concrete (AAC) panels according to claim 1, characterized in that, The pressure plate has side plates on both sides, a scraper at the rear of the pressure plate, a long groove on the side plate, a pulley that cooperates with the long groove on the scraper, and a transparent plate at the front of the pressure plate.

5. The load testing device for autoclaved aerated concrete (AAC) panels according to claim 1, characterized in that, The pressure plate is provided with a U-shaped lug, and the U-shaped lug is provided with a strip hole. The first hydraulic cylinder and the second hydraulic cylinder are respectively provided with pins that cooperate with the strip hole.

6. The load testing device for autoclaved aerated concrete (AAC) panels according to claim 3, characterized in that, The base plate is equipped with a feeding hydraulic cylinder, and the output end of the feeding hydraulic cylinder is connected to the upper plate.

7. The load testing device for autoclaved aerated concrete (AAC) panels according to claim 2, characterized in that, The gantry frame is provided with a crossbeam and a connecting plate. The connecting plate is fixed to the inside of the gantry frame. The connecting plate array has a number of mounting holes. The crossbeam is mounted on the connecting plate. The pressure hydraulic cylinder is mounted on the crossbeam.

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