Strength testing bench for high performance concrete

Abstract

The utility model discloses a kind of strength detection bench for high-performance concrete, it is related to concrete detection technical field, including base, column being installed in the top four corners of base and mounting piece being fixed in the top end of column, the center rotation of mounting piece bottom is provided with rotating cylinder, the outside of rotating cylinder is fixed with large gear, driving element is arranged on mounting piece, driving element is connected with large gear transmission, one side of rotating cylinder is provided with crosspiece, the bottom of crosspiece is provided with displacement detection element with inclination, driving element includes motor, and the motor is fixedly installed at the top of mounting piece;The utility model can make the driving shaft of motor drive pinion to rotate by opening motor, so that pinion drive large gear and rotating cylinder rotate, and then crosspiece can drive displacement detection element around movement, can be detected around the pressure of concrete, improve the detection effect of concrete.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, specifically to a strength testing stand for high-performance concrete. Background Technology

[0002] When pouring concrete during engineering construction, in order to ensure the quality of the main structure of the construction project, it is usually necessary to adjust the proportion of concrete materials first. After the concrete dries, it is necessary to test its strength. Therefore, in order to prepare some concrete test blocks for testing and thus ensure the quality of the project, it is necessary to use a concrete strength testing device to test its strength.

[0003] For example, an existing Chinese patent (publication number: CN218629278U) discloses a concrete strength tester. The driving component includes a motor, a first gear, and a second gear. The motor is fixedly connected to the extrusion mechanism and located at the top of the extrusion mechanism. The first gear is fixedly connected to the output end of the motor and rotatably connected to the extrusion mechanism and located inside the extrusion mechanism. The second gear meshes with the first gear and rotatably connected to the extrusion mechanism and located inside the extrusion mechanism. The connecting ring is fixedly connected to the second gear and located on one side of the second gear.

[0004] However, the concrete strength tester designed above still has some drawbacks in actual use: Although the concrete strength tester can use the extrusion mechanism to extrude concrete to facilitate the testing of concrete strength, the concrete displacement and deformation are usually detected by the naked eye. However, different people have different visual observation abilities, resulting in inconsistent test data. A few can be tested using the tester, but the instrument is usually fixed, making it impossible to detect the amount of displacement of concrete at different angles, resulting in poor testing effect.

[0005] To address these issues, we designed a strength testing bench for high-performance concrete. Utility Model Content

[0006] The purpose of this invention is to provide a strength testing stand for high-performance concrete to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides a strength testing stand for high-performance concrete, including a base, columns installed at the four corners of the top of the base, and mounting components fixed to the top of the columns. A rotating cylinder is rotatably arranged at the center of the bottom of the mounting component, and a large gear is fixedly sleeved on the outer side of the rotating cylinder. A driving component is provided on the mounting component, and the driving component is connected to the large gear. A crossbeam is provided on one side of the rotating cylinder, and a displacement detection component is inclinedly arranged at the bottom of the crossbeam.

[0008] Furthermore, the driving component includes an electric motor, which is fixedly mounted on the top of the mounting component, and the driving end of the electric motor rotates through the mounting component and is fixedly provided with a small gear, which meshes with a large gear.

[0009] Furthermore, a bearing is fixedly installed at the center of the bottom of the mounting component, and the top end of the rotating cylinder is fixedly inserted into the inner ring of the rotating cylinder.

[0010] Furthermore, a slider is slidably disposed inside the cross frame, the bottom end of the slider slidably passes through the cross frame and is fixedly connected to the displacement detection element, and an electric push rod is fixedly installed on one side of the cross frame, the drive end of the electric push rod being fixedly connected to the slider.

[0011] Furthermore, a sliding groove is provided at the bottom of the crossbar, the slider is slidably connected in the sliding groove, and the driving end of the electric push rod extends into the sliding groove.

[0012] Furthermore, a hydraulic cylinder is fixedly mounted at the center of the top of the mounting component, and the driving end of the hydraulic cylinder passes through the mounting component and through the inner ring of the bearing.

[0013] Furthermore, a pressure sensor is provided at the drive end of the hydraulic cylinder.

[0014] Furthermore, it also includes two positioning components, each including a positioning plate, which is fixedly installed on the top of the base. A cylinder is fixedly installed on one side of the positioning plate, and the driving end of the cylinder slides through the positioning plate and is provided with a positioning piece.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by activating the drive component, the drive component can drive the large gear and the rotating cylinder to rotate, which in turn can cause the cross frame to drive the displacement detection component to rotate, thereby enabling the detection of the pressure points of the concrete and improving the detection effect of the concrete.

[0016] Compared with the prior art, the beneficial effects of this utility model are: by activating the electric push rod, the drive end of the electric push rod can extend and retract, driving the slider and displacement detection component to move horizontally along the direction of the slide groove. The lateral position of the displacement detection component can be adjusted, thereby enabling detection of different areas of concrete and further improving the detection effect. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the outside. Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below. Figure 3 This is a three-dimensional structural diagram of the external structure of the large gear of this utility model; Figure 4 This utility model Figure 1 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Base; 2. Column; 3. Mounting component; 4. Rotating cylinder; 5. Large gear; 6. Motor; 7. Small gear; 8. Cross frame; 9. Displacement detection component; 10. Bearing; 11. Slide groove; 12. Slider; 13. Electric push rod; 14. Hydraulic cylinder; 15. Pressure sensor; 16. Positioning plate; 17. Cylinder; 18. Positioning piece. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a strength testing stand for high-performance concrete, including a base 1, columns 2 installed at the four corners of the top of the base 1, and mounting parts 3 fixed to the top of the columns 2. A rotating cylinder 4 is rotatably arranged at the center of the bottom of the mounting part 3. A large gear 5 is fixedly sleeved on the outside of the rotating cylinder 4. A driving component is provided on the mounting part 3, and the driving component is connected to the large gear 5. A crossbeam 8 is provided on one side of the rotating cylinder 4, and a displacement detection component 9 is inclinedly arranged at the bottom of the crossbeam 8. The driving component includes a motor 6, which is fixedly installed on the top of the mounting part 3. The driving end of the motor 6 rotates through the mounting part 3 and is fixedly provided with a small gear 7, which meshes with the large gear 5.

[0021] In practice, by turning on the motor 6, the drive shaft of the motor 6 can drive the small gear 7 to rotate, which in turn drives the large gear 5 and the rotating cylinder 4 to rotate. This allows the crossbeam 8 to drive the displacement detection element 9 to rotate, enabling circumferential detection of the pressure points of the concrete and improving the detection effect of the concrete.

[0022] It should be noted here that the displacement detection element 9 is usually a displacement sensor, and a laser displacement sensor is preferred here. The general principle of a laser displacement sensor is that a laser beam irradiates the surface of an object, and the reflected light is focused by a lens to a CCD / PSD receiver. The displacement is calculated based on the change in the position of the light spot. Since the displacement detection element 9 is existing technology and is not a problem that needs to be solved in the background technology of this specification, it will not be explained in detail.

[0023] See Figure 1-4A bearing 10 is fixedly installed at the center of the bottom of the mounting component 3, and the top end of the rotating cylinder 4 is fixedly inserted into the inner ring of the rotating cylinder 4. This facilitates the rotation of the rotating cylinder 4 at the bottom of the mounting component 3, avoids motion interference problems, and also brings convenience to the installers.

[0024] See Figure 1-4 A slider 12 is slidably installed inside the cross frame 8. The bottom end of the slider 12 slides through the cross frame 8 and is fixedly connected to the displacement detection element 9. An electric push rod 13 is fixedly installed on one side of the cross frame 8. The driving end of the electric push rod 13 is fixedly connected to the slider 12. A groove 11 is opened at the bottom of the cross frame 8. The slider 12 is slidably connected in the groove 11. The driving end of the electric push rod 13 extends into the groove 11.

[0025] In specific implementation, based on the above implementation, by activating the electric push rod 13, the drive end of the electric push rod 13 can extend and retract, driving the slider 12 and the displacement detection element 9 to move horizontally along the direction set by the slide groove 11. The lateral position of the displacement detection element 9 can be adjusted, thereby enabling detection of different areas of the concrete and further improving the detection effect.

[0026] See Figure 1-4 A hydraulic cylinder 14 is fixedly mounted at the center of the top of the mounting component 3. The driving end of the hydraulic cylinder 14 passes through the mounting component 3 and through the inner ring of the bearing 10. A pressure sensor 15 is provided at the driving end of the hydraulic cylinder 14.

[0027] In specific implementation, based on the above implementation, by opening the hydraulic cylinder 14, the drive end of the hydraulic cylinder 14 can be extended to drive the pressure sensor 15 to move downward and squeeze the concrete below. This not only allows for concrete pressure testing and convenient detection of concrete strength, but also facilitates precise control of different downward pressures.

[0028] See Figure 1-4 It also includes two positioning components, including a positioning plate 16, which is fixedly installed on the top of the base 1. A cylinder 17 is fixedly installed on one side of the positioning plate 16. The driving end of the cylinder 17 slides through the positioning plate 16 and is provided with a positioning piece 18.

[0029] In practice, based on the above, the concrete to be tested is placed on top of the base 1, and then the two cylinders 17 are turned on. This allows the drive end of the cylinders 17 to extend and drive the positioning plate 18 to move until the positioning plate 18 is against the outside of the concrete. This can position the concrete and ensure the stability during testing.

[0030] Working principle: Before use, all electrical appliances involved in the test bench need to be connected to an external power source, or a battery pack needs to be installed in an area outside the base 1 that does not obstruct other components. Then, the battery pack is connected to the electrical appliances through wiring. It is also necessary to avoid the wiring from getting tangled due to the movement of the components. Wiring needs to be buried and planned and organized to provide power to the electrical appliances, thereby ensuring their normal operation and switching. Since connecting the electrical appliances to an external power source or setting up a battery pack for power supply are existing technologies and are not problems that need to be solved in the background technology of this manual, they will not be explained in detail.

[0031] In use, first place the concrete to be tested on top of the base 1, then turn on the two cylinders 17, which will extend the drive end of the cylinders 17 to drive the positioning plate 18 to move until the positioning plate 18 is against the outside of the concrete, thus positioning the concrete and ensuring the stability during testing.

[0032] Opening the hydraulic cylinder 14 allows the drive end of the hydraulic cylinder 14 to extend and drive the pressure sensor 15 to move downwards, squeezing the concrete below. This not only allows for concrete pressure testing and convenient detection of concrete strength, but also facilitates precise control of different downward pressures.

[0033] By turning on the motor 6, the drive shaft of the motor 6 can drive the small gear 7 to rotate, which in turn drives the large gear 5 and the rotating cylinder 4 to rotate. This, in turn, causes the crossbeam 8 to drive the displacement detection element 9 to rotate, which can detect the pressure points of the concrete in a circular motion, thus improving the detection effect of the concrete.

[0034] In addition, by activating the electric push rod 13, the drive end of the electric push rod 13 can extend and retract, driving the slider 12 and the displacement detection element 9 to move horizontally along the direction set by the slide groove 11. The lateral position of the displacement detection element 9 can be adjusted, thereby enabling the detection of different areas of the concrete and further improving the detection effect.

Claims

1. A strength testing stand for high-performance concrete, comprising a base (1), columns (2) mounted at the four corners of the top of the base (1), and mounting components (3) fixed to the top of the columns (2), characterized in that, A rotating cylinder (4) is rotatably mounted at the center of the bottom of the mounting component (3). A large gear (5) is fixedly sleeved on the outside of the rotating cylinder (4). A driving component is mounted on the mounting component (3). The driving component is connected to the large gear (5) in a transmission manner. A crossbeam (8) is mounted on one side of the rotating cylinder (4). A displacement detection component (9) is inclinedly mounted at the bottom of the crossbeam (8).

2. The strength testing stand for high-performance concrete as described in claim 1, characterized in that: The driving component includes an electric motor (6), which is fixedly mounted on the top of the mounting component (3). The driving end of the electric motor (6) rotates through the mounting component (3) and is fixedly provided with a small gear (7), which meshes with a large gear (5).

3. The strength testing stand for high-performance concrete as described in claim 1, characterized in that: The bearing (10) is fixedly installed at the center of the bottom of the mounting component (3), and the top end of the rotating cylinder (4) is fixedly inserted into the inner ring of the rotating cylinder (4).

4. The strength testing stand for high-performance concrete as described in claim 1, characterized in that: A slider (12) is slidably disposed inside the cross frame (8). The bottom end of the slider (12) slides through the cross frame (8) and is fixedly connected to the displacement detection component (9). An electric push rod (13) is fixedly installed on one side of the cross frame (8). The driving end of the electric push rod (13) is fixedly connected to the slider (12).

5. The strength testing stand for high-performance concrete as described in claim 4, characterized in that: The bottom of the crossbar (8) is provided with a sliding groove (11), the slider (12) is slidably connected in the sliding groove (11), and the driving end of the electric push rod (13) extends into the sliding groove (11).

6. The strength testing stand for high-performance concrete as described in claim 3, characterized in that: A hydraulic cylinder (14) is fixedly installed at the center of the top of the mounting component (3). The driving end of the hydraulic cylinder (14) passes through the mounting component (3) and through the inner ring of the bearing (10).

7. The strength testing stand for high-performance concrete as described in claim 6, characterized in that: A pressure sensor (15) is provided at the drive end of the hydraulic cylinder (14).

8. The strength testing stand for high-performance concrete as described in claim 1, characterized in that: It also includes two positioning components, including a positioning plate (16), which is fixedly installed on the top of the base (1). A cylinder (17) is fixedly installed on one side of the positioning plate (16). The driving end of the cylinder (17) slides through the positioning plate (16) and is provided with a positioning piece (18).

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