Basalt concrete bending strength detection equipment

Abstract

The utility model discloses basalt concrete bending strength detection equipment, which belongs to the technical field of concrete strength detection equipment, and comprises a base, a supporting seat, a hydraulic frame, a force measuring pressing frame, an adjusting rail assembly, a plurality of pressure applying pieces and end restraining pieces, the clamping device is installed on the supporting base and used for being matched with the supporting base to clamp and restrain the end of the to-be-detected concrete member. According to the technical key points, the pressure exerting pieces are slidably mounted on the adjusting rail assembly and are detachably connected with the adjusting rail assembly, so that different quantities of pressure exerting pieces at different positions can be mounted according to test requirements, different load exerting conditions can be simulated, and bending resistance tests on concrete members under different working conditions can be carried out; the end portion of the concrete member can be clamped and restrained through the cooperation of the end restraining piece and the supporting seat, so that the end portion of the concrete member cannot naturally tilt when being pressed, and the test working condition is closer to the actual condition.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete strength testing equipment, specifically a basalt concrete flexural strength testing equipment. Background Technology

[0002] The application of basalt in concrete mainly involves the addition of basalt fibers. Basalt fibers are typically cut into short fibers and, after being uniformly mixed with concrete, form a three-dimensional network structure within the concrete, effectively limiting the generation and development of micro-cracks and improving the overall performance of the concrete. Specifically, the addition of basalt fibers significantly improves the tensile strength of concrete, as the interfacial bond between the fibers and the concrete matrix allows the fibers to bear some tensile stress under tension. To further and more accurately study the impact of basalt addition on concrete performance, multiple flexural strength tests are required to determine the optimal basalt addition amount based on usage conditions. This process necessitates the use of flexural strength testing equipment for concrete components.

[0003] The utility model with announcement number CN221351023U provides a concrete bending strength testing device for water conservancy engineering quality inspection. It includes a first fixing component, a second fixing component, and a force-applying component respectively disposed on a platform. The first fixing component can drive the concrete slab to be tested to move along the X direction, and the second fixing component can move relative to the first fixing component along the Y direction. The force-applying component is located on one side of the first fixing component and is used to apply Z-direction pressure to the concrete slab to be tested. The Z-direction pressure is used to detect the bending strength of the concrete slab. During operation, the first fixing component drives the concrete slab to be tested to move relative to the force-applying component in the X direction, and the second fixing component drives the concrete slab to move relative to the force-applying component in the Y direction, so as to be applicable to the bending strength testing of concrete slabs of different specifications. The device has wide applicability and strong versatility.

[0004] While the aforementioned device can perform flexural strength testing on concrete components, it only has one set of force-applying components, and the position of the pressure application point on the concrete component cannot be adjusted. Therefore, it is difficult to simulate the stress situation of the concrete component when subjected to concentrated forces at multiple different locations during use, making it difficult to conduct rich simulation tests and resulting in relatively simple test data. In addition, the aforementioned device cannot constrain the two ends of the concrete component during testing. When the concrete component is subjected to compressive bending, the two ends will be in a warped state. However, in actual working conditions, the two ends of the concrete component are usually fixedly connected to other structures and are in a constrained state. Therefore, this testing method cannot accurately simulate the actual stress state of the concrete component. Therefore, to address the above problems, a basalt concrete flexural strength testing device is proposed. Utility Model Content

[0005] The technical problem this invention aims to solve is to provide a basalt concrete flexural strength testing device. This device uses a hydraulic frame to drive a force-measuring frame downwards, and applies pressure to the concrete component through pressure-applying components installed on it, thus completing the flexural strength test. Since the pressure-applying components are slidably mounted on the adjusting track assembly and the two are detachably connected, different positions and numbers of pressure-applying components can be installed according to testing requirements to simulate different load conditions and conduct flexural strength tests on the concrete component under different working conditions. Furthermore, during testing, the ends of the concrete component can be clamped and constrained by the cooperation of the end constraint components and the support seat, preventing the ends from naturally tilting upwards under pressure. This makes the test conditions closer to actual conditions, improving the authenticity of the test results. This solves the technical problems of comparative technologies, such as the difficulty in simulating the stress conditions of concrete components under concentrated forces at multiple locations, the difficulty in conducting rich simulation tests, and the lack of constraint measures at both ends of the concrete component, which prevents accurate simulation of the actual stress conditions of the concrete component.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A device for testing the flexural strength of basalt concrete includes a base with two symmetrically arranged support seats slidably mounted thereon, a hydraulic frame on which a force-measuring frame is mounted. The hydraulic frame drives the force-measuring frame to move up and down. An adjustable track assembly is installed on both sides of the force-measuring frame, and several detachably connected pressure-applying components are slidably mounted between them. The upper end face of the pressure-applying component is in contact with the lower end face of the force-measuring frame, and the pressure-applying component applies pressure to the concrete component to be tested. An end constraint component is mounted on the support seats and cooperates with the support seats to clamp and constrain the ends of the concrete component to be tested. During operation, the hydraulic... The pressure frame drives the force measuring frame downward and applies pressure to the concrete component through the pressure-applying components installed on it, thus completing the bending test. Since the pressure-applying components are slidably installed on the adjusting track assembly and the two are detachably connected, different positions and numbers of pressure-applying components can be installed according to the test requirements to simulate different load application conditions and conduct bending tests on the concrete component under different working conditions. In addition, the ends of the concrete component can be clamped and constrained by the cooperation of the end restraint components and the support base, so that the ends cannot naturally tilt up when under pressure, thereby making the test conditions closer to the actual situation.

[0008] In one possible implementation, the adjusting track assembly includes two sets of symmetrically arranged track plates with grooves on them, and also includes sliders fixedly disposed on both sides of the pressure-applying member. The sliders are slidably disposed in the grooves of the track plates. Based on the above technical solution, the pressure-applying member can be slidably connected to the track plates through the sliders disposed on both sides, providing the necessary structural basis for its sliding adjustment position.

[0009] In one possible implementation, two symmetrically arranged locking shafts are fixedly provided on the outer end face of the slider, and locking wheels that contact the rail plate are threaded onto them. After the position of the pressure-applying component is adjusted, it needs to be fixed. At this time, the position of the pressure-applying component can be fixed by tightening the locking wheels to make them contact the rail plate and rub against each other.

[0010] In one possible implementation, the pressure-applying component includes a base plate, the slider is fixedly disposed at both ends of the base plate, a mounting plate is bolted to the lower end face of the base plate, and several vertical frames are fixedly disposed on the lower end face of the base plate. A contact plate is fixedly connected to the bottom end of the vertical frames. During testing, the base plate transmits pressure to the contact plate through the vertical frames. The contact plate contacts the concrete component to simulate the action of a concentrated force load. Since the mounting plate and the base plate are detachably connected, when it is necessary to increase or decrease the number of concentrated forces applied, the corresponding number of contact plates can be directly installed on the base plate or removed from the base plate, which simplifies the operation.

[0011] In one possible implementation, the support base is fixedly provided with connecting lugs one at both ends. The end constraint member includes a screw rod passing through the connecting lugs one and a clamping plate, which is fixedly provided with connecting lugs two at both ends. The upper part of the screw rod passes through the connecting lugs two and a locking nut is threadedly connected to the top. When the two ends of the concrete component overlap the support base, the screw rod is installed and the clamping plate is covered. Then, the locking nut is tightened to complete the clamping and fixing of the ends of the concrete component through the combined work between the clamping plate and the support base.

[0012] In one possible implementation, two symmetrically arranged slide rails are fixedly installed on the base, and a guide groove corresponding to the slide rail is opened on the lower end face of the support. The above structure can realize the sliding connection between the support and the base. When testing concrete components of different lengths, the distance between them can be adjusted by sliding the support to adapt to concrete components of different lengths.

[0013] In one possible implementation, the force measuring frame includes a connecting plate on which two symmetrically arranged sliding guide rods are slidably mounted. A pressure plate is fixedly connected to the bottom end of the sliding guide rods. A pressure sensor is installed on the pressure plate. Based on the above technical solution, the connecting plate can slide relative to the pressure plate. When the connecting plate is subjected to pressure, the pressure sensor can apply the pressure to the pressure plate, and the pressure plate will transmit the pressure downward. During the above process, the pressure sensor can monitor the pressure transmitted downward by the pressure plate in real time, which facilitates the control and adjustment of the pressure.

[0014] In one possible implementation, the hydraulic frame includes an L-shaped cantilever frame on which a hydraulic cylinder is mounted. The output shaft of the hydraulic cylinder is connected to a connecting plate for transmission. During testing, the output shaft of the hydraulic cylinder moves downward to apply downward pressure to the connecting plate, serving as a pressure source.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] The concrete strength testing equipment uses a hydraulic frame to drive the force measuring frame downward and applies pressure to the concrete component through the pressure applying component installed on it to complete the bending test. Since the pressure applying component is slidably installed on the adjustment track assembly and the two are detachably connected, different positions and different numbers of pressure applying components can be installed according to the test requirements to simulate different load application conditions and conduct bending tests on the concrete component under different working conditions.

[0017] Furthermore, during testing, the ends of the concrete component can be clamped and constrained by the cooperation between the end restraint and the support, preventing the ends from naturally tilting up under pressure. This makes the test conditions closer to the actual situation and improves the authenticity of the test results. At the same time, the end restraint can be quickly removed from the support. When it is not necessary to constrain the ends of the concrete component, the end restraint can be easily removed to avoid interfering with the test. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the force measuring frame structure of this utility model;

[0021] Figure 3 This is a partial structural schematic diagram of the present invention;

[0022] Figure 4 This is a schematic diagram of the pressure-applying component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the end constraint structure of this utility model.

[0024] In the diagram: 1. Base; 11. Slide rail; 2. Support seat; 21. Guide groove; 22. Connecting ear one; 3. Hydraulic frame; 31. L-shaped cantilever frame; 32. Hydraulic cylinder; 4. Force measuring frame; 41. Connecting plate; 42. Sliding guide rod; 43. Pressure plate; 44. Pressure sensor; 5. Adjusting track assembly; 51. Rail plate; 52. Slider; 53. Locking shaft; 54. Locking wheel; 6. Pressure applying component; 61. Base plate; 62. Mounting plate; 63. Vertical frame; 64. Contact plate; 7. End constraint component; 71. Screw; 72. Clamping plate; 73. Connecting ear two; 74. Locking nut. Detailed Implementation

[0025] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0026] like Figure 1 As shown, this embodiment provides a basalt concrete flexural strength testing device, including a base 1 with two symmetrically arranged support seats 2 slidably mounted on it, a hydraulic frame 3 with a force measuring frame 4 mounted on it, the hydraulic frame 3 driving the force measuring frame 4 to move up and down, an adjusting track assembly 5 mounted on both sides of the force measuring frame 4, and several detachably connected pressure applying components 6 slidably mounted between them, wherein the upper end face of the pressure applying component 6 is in contact with the lower end face of the force measuring frame 4, and the pressure applying component 6 applies pressure to the concrete component to be tested, and an end constraint component 7 mounted on the support seat 2 to cooperate with the support seat 2 to clamp and constrain the end of the concrete component to be tested. During operation, the hydraulic frame 3 drives the force measuring frame 4 to move downward and applies pressure to the concrete component through the pressure applying component 6 installed on it, thus completing the bending test. Since the pressure applying component 6 is slidably installed on the adjusting track assembly 5 and the two are detachably connected, different positions and different numbers of pressure applying components 6 can be installed according to the test requirements to simulate different load application conditions and conduct bending tests on the concrete component under different working conditions. In addition, the end of the concrete component can be clamped and constrained by the cooperation of the end constraint component 7 and the support seat 2, so that its end cannot naturally tilt up when under pressure, thereby making the test conditions closer to the actual situation.

[0027] The adjusting track assembly 5 includes two symmetrically arranged track plates 51 with grooves on them, and sliders 52 fixedly disposed on both sides of the pressure-applying component 6. The sliders 52 are slidably disposed in the grooves of the track plates 51. Based on the above technical solution, the pressure-applying component 6 can be slidably connected to the track plates 51 via the sliders 52 on both sides, providing the necessary structural basis for its sliding adjustment position. Furthermore, two symmetrically arranged locking shafts 53 are fixedly disposed on the outer end face of the sliders 52, with locking wheels 54 threadedly connected to them and contacting the track plates 51. After the position of the pressure-applying component 6 is adjusted, it needs to be fixed. This can be achieved by tightening the locking wheels 54 to make them contact and rub against the track plates 51, thus fixing the position of the pressure-applying component 6. Figure 3 As shown.

[0028] The pressure-applying component 6 includes a base plate 61, with sliders 52 fixedly mounted at both ends of the base plate 61. A mounting plate 62 is bolted to the lower end face of the base plate 61, and several vertical supports 63 are fixedly mounted on its lower end face. Contact plates 64 are fixedly connected to the bottom ends of the vertical supports 63. During testing, the base plate 61 transmits pressure to the contact plates 64 through the vertical supports 63. The contact plates 64 contact the concrete component to simulate a concentrated force load. Because the mounting plate 62 is detachably connected to the base plate 61, when the number of concentrated forces to be applied needs to be increased or decreased, the corresponding number of contact plates 64 can be directly mounted on or removed from the base plate 61, simplifying the operation. Figure 4 As shown.

[0029] The support base 2 has connecting lugs 22 fixedly installed at both ends. The end constraint member 7 includes a screw 71 passing through the connecting lug 22 and a clamping plate 72, both ends of which are fixedly installed with connecting lugs 73. The upper part of the screw 71 passes through the connecting lug 73 and a locking nut 74 is threadedly connected to the top. When the two ends of the concrete component overlap the support base 2, the screw 71 is installed and the clamping plate 72 is covered. Then, the locking nut 74 is tightened. The clamping and fixing of the ends of the concrete component is completed through the combined action of the clamping plate 72 and the support base 2. Figure 5 As shown; two symmetrically arranged slide rails 11 are fixedly installed on the base 1, and the lower end face of the support seat 2 is provided with a guide groove 21 corresponding to the slide rails 11. The above structure can realize the sliding connection between the support seat 2 and the base 1. When testing concrete components of different lengths, the distance between them can be adjusted by sliding the support seat 2 to adapt to concrete components of different lengths.

[0030] The force-measuring frame 4 includes a connecting plate 41 on which two symmetrically arranged sliding guide rods 42 are slidably mounted. A pressure plate 43 is fixedly connected to the bottom end of each sliding guide rod 42. A pressure sensor 44 is mounted on the pressure plate 43. Based on the above technical solution, the connecting plate 41 can slide relative to the pressure plate 43. When the connecting plate 41 is subjected to pressure, the pressure sensor 44 transmits the pressure to the pressure plate 43, which then transmits the pressure downwards. During this process, the pressure sensor 44 can monitor the downward pressure transmitted by the pressure plate 43 in real time, facilitating pressure control and adjustment. Figure 2 As shown.

[0031] The hydraulic frame 3 includes an L-shaped cantilever frame 31 on which a hydraulic cylinder 32 is mounted. The output shaft of the hydraulic cylinder 32 is connected to the connecting plate 41 for transmission. During testing, the output shaft of the hydraulic cylinder 32 moves downward, applying downward pressure to the connecting plate 41, thus serving as a pressure source. Figure 2 As shown.

[0032] The working principle and usage process of this utility model:

[0033] The concrete strength testing equipment uses a hydraulic frame 3 to drive the force measuring frame 4 to move downward and apply pressure to the concrete component through the pressure applying component 6 installed on it, thus completing the bending test. Since the pressure applying component 6 is slidably installed on the adjusting track assembly 5 and the two are detachably connected, different positions and different numbers of pressure applying components 6 can be installed according to the test requirements to simulate different load application conditions and conduct bending tests on the concrete component under different working conditions.

[0034] The adjusting track assembly 5 includes two sets of symmetrically arranged track plates 51 with grooves on them, and sliders 52 fixedly arranged on both sides of the pressure-applying component 6. The sliders 52 are slidably arranged in the grooves of the track plates 51. Based on the above technical solution, the pressure-applying component 6 can be slidably connected to the track plates 51 through the sliders 52 arranged on both sides. At the same time, two symmetrically arranged locking shafts 53 are fixedly arranged on the outer end face of the sliders 52, and locking wheels 54 that contact the track plates 51 are threadedly connected to them. After the position of the pressure-applying component 6 is adjusted, it needs to be fixed. At this time, the position of the pressure-applying component 6 can be fixed by tightening the locking wheels 54 to make them contact and rub against the track plates 51.

[0035] Furthermore, during testing, the ends of the concrete component can be clamped and constrained by the cooperation between the end constraint member 7 and the support seat 2, preventing the ends from naturally tilting up under pressure. This makes the test conditions closer to the actual situation and improves the authenticity of the test results. At the same time, the end constraint member 7 can be quickly removed from the support seat 2. When it is not necessary to constrain the ends of the concrete component, the end constraint member 7 can be easily removed to avoid interfering with the test. Specifically, when both ends of the concrete component overlap the support seat 2, the screw 71 is installed and the clamping plate 72 is covered. Then, the locking nut 74 is tightened to complete the clamping and fixing of the ends of the concrete component through the combination of the clamping plate 72 and the support seat 2.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A device for testing the flexural strength of basalt concrete, characterized in that, include: The base (1) has two sets of symmetrically arranged support seats (2) that are slidably mounted on it; A hydraulic frame (3) is mounted on which a force measuring frame (4) is installed. The hydraulic frame (3) is used to drive the force measuring frame (4) to move up and down. Adjust the track assembly (5), which is installed on both sides of the force measuring frame (4), and several detachable pressure-applying components (6) are slidably installed between them. The upper end face of the pressure-applying component (6) is in contact with the lower end face of the force measuring frame (4), and the pressure-applying component (6) applies pressure to the concrete component to be tested. End constraint member (7), which is installed on the support seat (2) to cooperate with the support seat (2) to clamp and constrain the end of the concrete member to be tested.

2. The basalt concrete flexural strength testing equipment according to claim 1, characterized in that: The adjusting track assembly (5) includes two sets of symmetrically arranged track plates (51) with grooves on them, and also includes sliders (52) fixedly disposed on both sides of the pressure application member (6), wherein the sliders (52) are slidably disposed in the grooves of the track plates (51).

3. The basalt concrete flexural strength testing equipment according to claim 2, characterized in that: The outer end face of the slider (52) is fixedly provided with two symmetrically arranged locking shafts (53), and a locking wheel (54) that contacts the rail plate (51) is threadedly connected to them.

4. The basalt concrete flexural strength testing equipment according to claim 2, characterized in that: The pressure-applying component (6) includes a base plate (61), the slider (52) is fixedly disposed at both ends of the base plate (61), the lower end face of the base plate (61) is bolted to a mounting plate (62), and a plurality of vertical frames (63) are fixedly disposed on the lower end face of the base plate (61), and a contact plate (64) is fixedly connected to the bottom end of the vertical frame (63).

5. The basalt concrete flexural strength testing equipment according to claim 1, characterized in that: The support base (2) is fixedly provided with connecting lugs (22) at both ends; The end constraint member (7) includes a screw (71) passing through the connecting ear (22) and a clamping plate (72) with connecting ears (73) fixed at both ends. The upper part of the screw (71) passes through the connecting ear (73) and a locking nut (74) is threadedly connected to the top.

6. The basalt concrete flexural strength testing equipment according to claim 1, characterized in that: Two symmetrically arranged slide rails (11) are fixedly installed on the base (1), and a guide groove (21) corresponding to the slide rail (11) is opened on the lower end face of the support seat (2).

7. The basalt concrete flexural strength testing equipment according to claim 1, characterized in that: The force measuring frame (4) includes a connecting plate (41) on which two symmetrically arranged sliding guide rods (42) are slidably arranged. A pressure plate (43) is fixedly connected to the bottom end of the sliding guide rods (42), and a pressure sensor (44) is installed on the pressure plate (43).

8. The basalt concrete flexural strength testing equipment according to claim 7, characterized in that: The hydraulic frame (3) includes an L-shaped cantilever frame (31) on which a hydraulic cylinder (32) is mounted, and the output shaft end of the hydraulic cylinder (32) is connected to the connecting plate (41) for transmission.

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