Concrete ice water erosion resistance performance test device

Abstract

The utility model relates to concrete test technical field, concretely is concrete ice water erosion resistance performance test device, including base, experiment box, support and adjusting device, support and the upper surface fixed connection of base, experiment box is located the upper surface setting of support, adjusting device sets up on the surface of base, adjusting device includes stand, stand and the lower surface fixed connection of experiment box, the surface of support is provided with round hole, the utility model discloses, realize test device to the simulation of different working conditions, the core function is the inclination angle of experiment box of flexible adjustment, utilize torsional spring elasticity and make experiment box lean, can simulate the actual working condition that ice water produces directional flow, impact because of gravity at slope, restore the real state of water flow impact direction, speed and pressure distribution, and the experiment box is put flat, then can simulate the ice water erosion of normal state, strengthened the test result and the adhesion of actual engineering scene, improved the reliability and practicality of test data.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, and in particular to a test device for concrete resistance to ice and water erosion. Background Technology

[0002] Concrete is one of the most important civil engineering materials in modern times. It is made by mixing cementitious materials, aggregates, water, and admixtures in a certain proportion, followed by stirring, molding, and curing. It has the characteristics of abundant raw materials, low price, and simple production process. It also has high compressive strength, good durability, and a wide range of strength grades. Various types of concrete can be formulated according to different needs. It is widely used in civil engineering construction such as houses, bridges, and roads. Its performance is affected by factors such as the quality of raw materials, mix proportions, construction technology, and curing conditions. With the development of science and technology, new varieties such as high-performance concrete and self-compacting concrete have emerged, playing an irreplaceable role in modern engineering. The concrete ice-water erosion resistance test device is used to simulate the ice jam environment of rivers in cold regions and accurately test the concrete's resistance to ice-water erosion.

[0003] However, the concrete anti-ice water erosion test device is difficult to simulate the conditions at the slope. The directional flow and scouring characteristics of ice water due to gravity at the slope angle result in the water flow impact direction, velocity and pressure distribution not matching the actual slope working conditions, causing the test results to deviate significantly from the durability assessment of slope structures in actual engineering. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing concrete anti-ice water erosion test devices are difficult to simulate the conditions at slopes. Under the slope angle, the directional flow and scouring characteristics of ice water due to gravity cause the water flow impact direction, velocity and pressure distribution to be inconsistent with the actual slope working conditions, resulting in a large deviation between the test results and the durability assessment of slope structures in actual engineering. Therefore, this invention proposes a concrete anti-ice water erosion performance test device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a concrete anti-icing water erosion performance testing device, comprising a base, an experimental box, a support, and an adjustment device. The support is fixedly connected to the upper surface of the base, the experimental box is located on the upper surface of the support, and the adjustment device is disposed on the surface of the base. The adjustment device includes a column, which is fixedly connected to the lower surface of the experimental box. A circular hole is formed on the surface of the support, and the experimental box is rotatably connected to the circular hole on the surface of the support. One end of the rotating shaft of the experimental box passes through the support and is fixedly connected to a circular plate. A torsion spring is sleeved on the surface of the rotating shaft of the experimental box, and both ends of the torsion spring are fixedly connected to the support and the circular plate, respectively. A placement platform is fixedly connected to the upper surface of the base. The placement platform is located on the lower surface of the experimental box. The surface of the placement platform has an angled opening. The experimental box contacts the placement platform. By setting an adjustment device, the experimental device can simulate different working conditions. The core function is to flexibly adjust the tilt angle of the experimental box. By using the elastic force of the torsion spring to tilt the experimental box, it can simulate the actual working condition of ice water flowing and impacting due to gravity on a slope, and restore the real state of the water flow impact direction, speed and pressure distribution. When the experimental box is placed flat, it can simulate the ice water erosion under normal conditions, which enhances the fit between the test results and the actual engineering scenario and improves the reliability and practicality of the test data.

[0006] Preferably, a threaded rod is fixedly connected to the lower surface of the column, and a mounting bracket is fixedly connected to the upper surface of the base. The mounting bracket has a strip-shaped hole on its surface. By setting the threaded rod and cooperating with the screw ring, the experimental box can be switched and fixed between the tilted state and the flat state. When it is necessary to simulate the slope state, the screw ring is rotated to disengage it from the threaded rod, releasing the elastic force of the torsion spring, so that the experimental box tilts and abuts against the placement platform.

[0007] Preferably, the threaded rod is inserted into the strip hole on the surface of the mounting bracket, and the surface of the threaded rod is threaded with a screw ring. By setting the screw ring and cooperating with the threaded rod, the screw ring can be rotated to move on the threaded rod, thereby locking or unlocking the tilted state of the experimental box. When the screw ring disengages from the threaded rod, the elastic force of the torsion spring can drive the experimental box to tilt and rotate until it is against the placement platform, presenting a tilted state simulating a ramp.

[0008] Preferably, the upper surface of the experimental box is provided with a picking component, which includes a frame. The frame is fixedly connected to the upper surface of the experimental box. The frame is U-shaped and has a material inlet on its surface. Sliding grooves are provided at both ends of the frame. Brackets are slidably connected to the inner walls of the sliding grooves at both ends of the frame. By setting up the picking component, the installation and disassembly process of concrete samples is simplified, improving the convenience and efficiency of the test operation. Concrete blocks can be quickly fixed on the frame. After the test, the pressure spring automatically pushes out the concrete sample, reducing manual operation and lowering the risk of sample damage.

[0009] Preferably, the upper surface of the frame is provided with a threaded hole, and a screw is threadedly connected to the inner wall of the threaded hole. By setting the screw, after the concrete is placed in the frame, the concrete is fixed by rotating the screw to prevent it from shifting or shaking during the experiment, thus ensuring the accuracy of the experimental results. After the experiment is completed, the screw is rotated in the opposite direction to release the concrete. With the help of the elastic force of the pressure spring, the bracket slides upward to push the concrete out, making it easy to quickly and conveniently retrieve the concrete after the experiment.

[0010] Preferably, the bracket is located in the inner wall of the frame, and the diameter of the bracket is smaller than the inner diameter of the experimental box.

[0011] Preferably, a pressure spring is fixedly connected to one side of the bracket, and the end of the pressure spring away from the bracket is fixedly connected to the frame. By setting the pressure spring, after the concrete experiment is completed, when the screw is rotated in the opposite direction to release the concrete, an elastic force is generated to squeeze the bracket upward and slide it out. The bracket then pushes the concrete out, which makes it easy to quickly and conveniently pick up the concrete block after the experiment, avoids the inconvenience or impact on the experimental results that may be caused by manual operation, and improves experimental efficiency and operational convenience.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting an adjustment device, when it is necessary to simulate the effect of ice water on concrete on a slope, the screw ring is rotated, and the screw ring disengages from the threaded rod. At this time, the torsion spring loses its restraint and generates elastic force to drive the experimental box to tilt and rotate and abut against the placement platform. At this time, the experimental box is in an inclined state. Then, concrete is placed in the experimental box, and water is poured from a height to simulate the impact of ice water on a slope. When the experimental box is pressed flat, and the threaded rod is inserted into the mounting frame, the screw ring is rotated to flatten the experimental box, simulating the normal state. By setting an adjustment device, the experimental device can simulate different working conditions. The core function is to flexibly adjust the tilt angle of the experimental box. By using the elastic force of the torsion spring to tilt the experimental box, it can simulate the actual working condition of ice water on a slope causing directional flow and impact due to gravity, restoring the real state of the water flow impact direction, speed and pressure distribution. When the experimental box is flat, it can simulate the ice water erosion under normal conditions, enhancing the fit between the test results and the actual engineering scenario, and improving the reliability and practicality of the test data.

[0014] 2. In this utility model, by setting up a picking component, when placing the concrete, the concrete block is inserted into the frame, the concrete enters the frame and squeezes the bracket, the bracket slides under force and enters the test box, and then the screw is rotated to fix the concrete on the frame. After the experiment is completed, the screw is rotated in the opposite direction, the concrete is released, the pressure spring generates elastic force to squeeze the bracket to slide upward, and the bracket then pushes the concrete out. By setting up the picking component, the installation and disassembly process of concrete samples is simplified, the convenience and efficiency of the test operation are improved, the concrete block can be quickly fixed on the frame, and after the test is completed, the pressure spring automatically pushes out the concrete sample, reducing manual operation and reducing the risk of sample damage. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of the concrete anti-icing water erosion performance test device is provided for this utility model;

[0016] Figure 2 A bottom view of the structure of the concrete anti-icing water erosion performance test device proposed in this utility model;

[0017] Figure 3 This utility model provides a schematic diagram of the adjustment device structure of the concrete anti-icing water erosion performance test device;

[0018] Figure 4 This invention provides a testing device for the resistance of concrete to ice and water erosion. Figure 3 A magnified structural diagram at point A;

[0019] Figure 5 A schematic diagram of the handle component structure of the concrete anti-icing water erosion performance testing device proposed in this utility model.

[0020] Legend: 1. Base; 2. Experiment box; 3. Support; 4. Adjustment device; 41. Placement platform; 42. Column; 43. Threaded rod; 44. Threaded ring; 45. Mounting bracket; 46. Round plate; 47. Torsion spring; 48. Pick-up component; 481. Frame; 482. Bracket; 483. Compression spring; 484. Screw. Detailed Implementation

[0021] Please see Figures 1-5 This utility model provides a technical solution: a concrete anti-icing water erosion performance testing device, including a base 1, a test box 2, a support 3 and an adjustment device 4. The support 3 is fixedly connected to the upper surface of the base 1, the test box 2 is located on the upper surface of the support 3, and the adjustment device 4 is located on the surface of the base 1.

[0022] In this embodiment: the adjusting device 4 includes a column 42, which is fixedly connected to the lower surface of the experimental box 2. A circular hole is provided on the surface of the support 3, and the experimental box 2 is rotatably connected to the circular hole on the surface of the support 3. One end of the rotating shaft of the experimental box 2 passes through the support 3 and is fixedly connected to a circular plate 46. A torsion spring 47 is sleeved on the surface of the rotating shaft of the experimental box 2, and both ends of the torsion spring 47 are fixedly connected to the support 3 and the circular plate 46, respectively. A placement platform 41 is fixedly connected to the upper surface of the base 1. The placement platform 41 is located on the lower surface of the experimental box 2, and an inclined surface is provided on the surface of the placement platform 41. The experimental box 2 is in contact with the placement platform 41. By setting the adjustment device 4, the experimental device can simulate different working conditions. The core function is to flexibly adjust the tilt angle of the experimental box 2. The experimental box 2 is tilted by the elastic force of the torsion spring 47, which can simulate the actual working condition of ice water flowing and impacting due to gravity on the slope, and restore the real state of the water flow impact direction, speed and pressure distribution. When the experimental box 2 is placed flat, it can simulate the ice water erosion under normal conditions, which enhances the fit between the test results and the actual engineering scenario and improves the reliability and practicality of the test data.

[0023] Specifically, a threaded rod 43 is fixedly connected to the lower surface of the column 42, and a mounting bracket 45 is fixedly connected to the upper surface of the base 1. The mounting bracket 45 has a strip hole on its surface. By setting the threaded rod 43 and cooperating with the screw ring 44, the experimental box 2 can be switched and fixed between the tilted state and the flat state. When it is necessary to simulate the slope state, the screw ring 44 is rotated to disengage it from the threaded rod 43, releasing the elastic force of the torsion spring 47, so that the experimental box 2 tilts and abuts against the placement platform 41.

[0024] Specifically, the threaded rod 43 is inserted into the strip hole on the surface of the mounting bracket 45. The surface of the threaded rod 43 is threaded with a screw ring 44. By setting the screw ring 44 to cooperate with the threaded rod 43, the screw ring 44 can be rotated to move on the threaded rod 43, thereby locking or unlocking the tilted state of the experimental box 2. When the screw ring 44 is disengaged from the threaded rod 43, the elastic force of the torsion spring 47 can drive the experimental box 2 to tilt and rotate until it abuts against the placement platform 41, presenting a tilted state simulating a ramp.

[0025] Specifically, the upper surface of the experimental box 2 is provided with a picking component 48, which includes a frame 481. The frame 481 is fixedly connected to the upper surface of the experimental box 2. The frame 481 is U-shaped and has a material opening on its surface. The two ends of the frame 481 have grooves, and brackets 482 are slidably connected to the inner walls of the grooves at both ends of the frame 481. By setting up the picking component 48, the installation and disassembly process of concrete samples is simplified, improving the convenience and efficiency of the test operation. The concrete block can be quickly fixed on the frame 481. After the test, the pressure spring 483 automatically pushes out the concrete sample, reducing manual operation and lowering the risk of sample damage.

[0026] Specifically, a threaded hole is provided on the upper surface of the frame 481, and a screw 484 is threadedly connected to the inner wall of the threaded hole of the frame 481.

[0027] In this embodiment: by setting screw 484, after the concrete is placed in the frame 481, the screw 484 is rotated to fix the concrete, preventing it from shifting or shaking during the experiment and ensuring the accuracy of the experimental results. After the experiment is completed, the screw 484 is rotated in the opposite direction to release the concrete. With the help of the elastic force of the pressure spring 483, the bracket 482 slides upward to push the concrete out, making it easy to quickly and conveniently retrieve the concrete after the experiment.

[0028] Specifically, bracket 482 is located in the inner wall of frame 481, and the diameter of bracket 482 is smaller than the inner diameter of experimental box 2.

[0029] Specifically, a pressure spring 483 is fixedly connected to one side of the bracket 482, and the end of the pressure spring 483 away from the bracket 482 is fixedly connected to the frame 481.

[0030] In this embodiment: by setting a pressure spring 483, after the concrete experiment is completed, when the screw 484 is rotated in the opposite direction to make the concrete unrestrained, an elastic force is generated to squeeze the bracket 482 to slide upward. The bracket 482 then pushes the concrete out, which makes it easy to quickly and conveniently pick up the concrete block after the experiment, avoiding the inconvenience or impact on the experimental results that may be caused by manual operation, and improving experimental efficiency and operational convenience.

[0031] Working principle: By setting the adjustment device 4, when it is necessary to simulate the effect of ice water on concrete on a slope, rotating the screw ring 44 disengages it from the threaded rod 43. At this time, the torsion spring 47 loses its restraint and generates elastic force, causing the experimental box 2 to tilt and rotate, and then abut against the placement platform 41. At this time, the experimental box 2 is tilted. Then, concrete is placed in the experimental box 2, and water is poured from a height to simulate the impact of ice water on a slope. When the experimental box 2 is pressed flat, and the threaded rod 43 is inserted into the mounting bracket 45, rotating the screw ring 44 will tilt the experimental box 2. When the experimental box 2 is laid flat to simulate the normal state, the experimental device can simulate different working conditions by setting the adjustment device 4. The core function is to flexibly adjust the tilt angle of the experimental box 2. The experimental box 2 is tilted by the elastic force of the torsion spring 47, which can simulate the actual working condition of ice water flowing and impacting due to gravity on the slope, and restore the real state of the water flow impact direction, speed and pressure distribution. When the experimental box 2 is laid flat, it can simulate the ice water erosion under normal conditions, which enhances the fit between the test results and the actual engineering scenario, and improves the reliability and practicality of the test data.

[0032] By setting the pick-up component 48, when placing the concrete, the concrete block is inserted into the frame 481. The concrete enters the frame 481 and squeezes the bracket 482. The bracket 482 slides under force and enters the experimental box 2. Then, the screw 484 is rotated to fix the concrete on the frame 481. After the experiment is completed, the screw 484 is rotated in the opposite direction, the concrete is released, and the pressure spring 483 generates elastic force to squeeze the bracket 482 to slide upward. The bracket 482 then pushes the concrete out. By setting the pick-up component 48, the installation and disassembly process of the concrete sample is simplified, improving the convenience and efficiency of the test operation. The concrete block can be quickly fixed on the frame 481. After the test is completed, the pressure spring 483 automatically pushes out the concrete sample, reducing manual operation and lowering the risk of sample damage.

Claims

1. A test apparatus for concrete resistance to ice and water erosion, comprising a base (1), a test box (2), a support (3), and an adjustment device (4), characterized in that: The bracket (3) is fixedly connected to the upper surface of the base (1), the experimental box (2) is located on the upper surface of the bracket (3), and the adjustment device (4) is located on the surface of the base (1). The adjustment device (4) includes a column (42), which is fixedly connected to the lower surface of the experimental box (2). The surface of the support (3) is provided with a round hole. The experimental box (2) is rotatably connected to the round hole on the surface of the support (3). One end of the rotating shaft of the experimental box (2) passes through the support (3) and is fixedly connected to a round plate (46). A torsion spring (47) is sleeved on the surface of the rotating shaft of the experimental box (2). The two ends of the torsion spring (47) are fixedly connected to the support (3) and the round plate (46) respectively. A placement platform (41) is fixedly connected to the upper surface of the base (1). The placement platform (41) is located on the lower surface of the experimental box (2). The surface of the placement platform (41) is provided with an angle. The experimental box (2) is in contact with the placement platform (41).

2. The concrete anti-icing and water erosion performance testing device according to claim 1, characterized in that: A threaded rod (43) is fixedly connected to the lower surface of the column (42), and a mounting bracket (45) is fixedly connected to the upper surface of the base (1). The mounting bracket (45) has a strip-shaped hole on its surface.

3. The concrete anti-icing and water erosion performance testing device according to claim 2, characterized in that: The threaded rod (43) is inserted into the strip hole on the surface of the mounting bracket (45), and the surface of the threaded rod (43) is threaded with a screw ring (44).

4. The concrete anti-icing and water erosion performance testing device according to claim 1, characterized in that: The upper surface of the experimental box (2) is provided with a picking component (48), the picking component (48) includes a frame (481), the frame (481) is fixedly connected to the upper surface of the experimental box (2), the frame (481) is arranged in a "U" shape, the surface of the frame (481) is provided with a material opening, the two ends of the frame (481) are provided with sliding grooves, and the inner walls of the sliding grooves at both ends of the frame (481) are slidably connected with brackets (482).

5. The concrete anti-icing and water erosion performance testing device according to claim 4, characterized in that: The upper surface of the frame (481) is provided with a threaded hole, and a screw (484) is threadedly connected to the inner wall of the threaded hole of the frame (481).

6. The concrete anti-icing and water erosion performance testing device according to claim 5, characterized in that: The bracket (482) is located in the inner wall of the frame (481), and the diameter of the bracket (482) is smaller than the inner diameter of the experimental box (2).

7. The concrete anti-icing and water erosion performance testing device according to claim 6, characterized in that: A pressure spring (483) is fixedly connected to one side of the bracket (482), and the end of the pressure spring (483) away from the bracket (482) is fixedly connected to the frame (481).

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