Device for detecting corrosion resistance of building material

Abstract

The utility model discloses a device for detecting the corrosion resistance of a building material, and belongs to the technical field of corrosion resistance detection. A building material corrosion resistance detection device comprises a work box, the work box is divided into a cleaning cavity and a detection cavity through a partition plate, a detection mechanism is arranged in the detection cavity, the building material corrosion resistance detection device further comprises an installation disc rotationally connected in the cleaning cavity, a guide rod is fixedly connected in the cleaning cavity, an installation base is slidably connected to the guide rod, and a detection mechanism is arranged in the detection mechanism. A cleaning roller is rotationally connected to the mounting base, and a driving part is arranged on the working box and used for driving the mounting disc to rotate; the liquid spraying assembly is arranged on the mounting base, and when the mounting disc rotates, the spraying end of the liquid spraying assembly sprays liquid towards the outer wall of the sample; according to the device, the cleaning efficiency can be greatly improved, the corrosion on the outer wall of the steel bar can be quickly and uniformly removed through physical friction and the chemical action of the cleaning agent, the actual metal corrosion degree is prevented from being covered by the surface corrosion, and the subsequent detection precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of corrosion resistance testing technology, and in particular to a device for testing the corrosion resistance performance of building materials. Background Technology

[0002] With the continuous development of society, there are more and more high-rise buildings. During long-term use, it is necessary to conduct performance tests on the steel bars in the buildings in order to predict the safety of the buildings. For steel bars, corrosion will lead to a decrease in their strength, brittleness and cracking, as well as a decrease in the overall strength of the concrete structure, thus affecting the structural safety and durability. Therefore, it is necessary to conduct performance tests on them and test the corrosion resistance of the materials in the atmospheric environment.

[0003] In the prior art, the steel bars in the building being tested are usually tested. According to the patent publication number CN220961148U, a device for testing the corrosion resistance of building materials is disclosed. The steel bar sample taken by the cutting mechanism is placed directly in the reaction chamber for reaction contact. However, the sample is not cleaned before testing. The impurities remaining on the surface may lead to inaccurate test results. For example, the presence of surface rust may mask the actual degree of metal corrosion and reduce the accuracy of the test. Utility Model Content

[0004] The purpose of this invention is to solve the problem that surface impurities in the prior art may lead to inaccurate test results and reduce detection accuracy, and to propose a device for testing the corrosion resistance of building materials.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for testing the corrosion resistance of building materials includes a working chamber, which is divided into a cleaning chamber and a testing chamber by a partition. A testing mechanism is installed in the testing chamber. The device further includes: a mounting plate rotatably connected to the cleaning chamber; a guide rod fixedly connected to the cleaning chamber; a mounting seat slidably connected to the guide rod; a cleaning roller rotatably connected to the mounting seat; and a driving unit on the working chamber for driving the mounting plate to rotate. When the mounting plate rotates, the mounting seat reciprocates along the guide rod. A spraying assembly is mounted on the mounting seat, and when the mounting plate rotates, the spraying end of the spraying assembly sprays liquid toward the outer wall of the sample.

[0007] To facilitate the rotation of the shaft, preferably, the drive unit includes a shaft rotatably connected to the work box, a placement box is fixedly connected to the bottom of the work box, and a mounting plate is fixedly connected to one end of the shaft. A drive motor is fixedly connected inside the placement box, and the output end of the drive motor meshes with the shaft through gears.

[0008] To facilitate pressing the top of the reinforcing bar, the top of the work box is further fixedly connected to a telescopic component, and the output end of the telescopic component extends into the cleaning cavity and is rotatably connected to a pressure plate, with the axis of the pressure plate coinciding with that of the mounting plate.

[0009] To facilitate the reciprocating lifting and lowering of the movable block, a lead screw is rotatably connected inside the cleaning cavity, and the movable block is threaded onto the lead screw. The mounting base is fixedly connected to the movable block, and the lead screw is driven by meshing with a rotating shaft through gears.

[0010] To facilitate liquid spraying for cleaning the outer wall of the reinforcing bars, preferably, the liquid spraying assembly includes a liquid spraying pipe, which is fixedly connected to the mounting base, and the output end of the liquid spraying pipe sprays liquid toward the outer wall of the sample.

[0011] To facilitate the separate delivery of liquids from the two sets of storage tanks, the placement box is further equipped with a first storage tank and a second storage tank, respectively, and the spray pipe is connected to the first storage tank and the second storage tank via pipes.

[0012] Furthermore, a pressure boosting cylinder is fixedly connected to the working box, and a pressure boosting rod is slidably connected to the pressure boosting cylinder. A piston is provided at one end of the pressure boosting rod, and the piston is in contact with the inner wall of the pressure boosting cylinder. An air inlet pipe and an air outlet pipe are respectively provided on the pressure boosting cylinder, and a one-way valve is provided on the air inlet pipe. The other end of the pressure boosting rod extends to the outside and is located below the movable block. A first three-way valve is provided on the air outlet pipe. The first channel of the first three-way valve is connected to the first liquid storage tank through a pipe, and the second channel of the first three-way valve is connected to the second liquid storage tank through a pipe. A second three-way valve is provided on the spray pipe. The first channel of the second three-way valve is connected to the first liquid storage tank through a pipe, and the second channel of the second three-way valve is connected to the second liquid storage tank through a pipe.

[0013] To facilitate the agitation of the cleaning agent mixed in the first storage tank, preferably, a connecting rod is rotatably connected to the first storage tank, one end of the connecting rod extends into the cavity of the first storage tank and is provided with a stirring paddle, and the other end of the connecting rod is fixedly connected to the bottom of the lead screw.

[0014] To facilitate direct testing of the corrosion resistance of reinforcing bars, preferably, the testing mechanism includes an optical microscope detector, and an observation plate is provided inside the testing cavity.

[0015] To improve the limiting effect of the reinforcing bars, preferably, friction pads are provided on the surfaces of both the mounting plate and the pressure plate.

[0016] Compared with the prior art, this utility model provides a device for testing the corrosion resistance of building materials, which has the following beneficial effects:

[0017] 1. This building material corrosion resistance testing device can use a cleaning roller to move back and forth against the outer wall of the steel bar sample and rotate and rub, while the spray pipe can spray cleaning agent towards the outer wall of the steel bar sample, which can greatly improve the cleaning efficiency. Through physical friction and the chemical action of the cleaning agent, it can quickly and evenly remove the rust on the outer wall of the steel bar, prevent the surface rust from masking the actual degree of metal corrosion, and improve the accuracy of subsequent testing.

[0018] 2. This building material corrosion resistance testing device can also spray clean water onto the outer wall of the steel bar sample through a spray pipe, thereby quickly spraying and cleaning the cleaning agent on the outer wall of the steel bar to prevent the cleaning agent from remaining on the outer wall of the steel bar.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This invention can significantly improve cleaning efficiency and, through physical friction and the chemical action of the cleaning agent, can quickly and evenly remove rust from the outer wall of the reinforcing steel, preventing surface rust from masking the actual degree of metal corrosion and improving the accuracy of subsequent detection. Attached Figure Description

[0020] Figure 1 A schematic diagram of the isometric structure of a building material corrosion resistance testing device proposed in this utility model. Figure 1 ;

[0021] Figure 2 A schematic diagram of the isometric structure of a building material corrosion resistance testing device proposed in this utility model. Figure 2 ;

[0022] Figure 3 A cross-sectional structural diagram of a building material corrosion resistance testing device proposed in this utility model. Figure 1 ;

[0023] Figure 4 A cross-sectional structural diagram of a building material corrosion resistance testing device proposed in this utility model. Figure 2 ;

[0024] Figure 5 This is a partial schematic diagram of a device for testing the corrosion resistance of building materials according to the present invention.

[0025] In the diagram: 1. Working box; 2. Optical microscope detector; 3. Observation plate; 4. Telescopic component; 5. Pressure plate; 6. Placement box; 7. Rotating shaft; 8. Mounting plate; 9. Lead screw; 10. Movable block; 11. Mounting base; 12. Guide rod; 13. Motor; 14. Cleaning roller; 15. Spray pipe; 16. Pressure booster cylinder; 17. Pressure booster rod; 18. First liquid storage tank; 19. Connecting rod; 20. Stirring paddle; 21. Second liquid storage tank; 22. Drive motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Example:

[0029] Reference Figures 1-5 A device for testing the corrosion resistance of building materials includes a working chamber 1. The working chamber 1 is divided into a cleaning chamber and a testing chamber by a partition. A testing mechanism is installed in the testing chamber. The cleaning chamber is used to clean the external surface of the steel bar to be tested, while the testing mechanism in the testing chamber is used to observe the degree of corrosion on the surface of the steel bar. The testing mechanism can use an optical micro-detector 2, a scanning electron microscope, or an X-ray diffractometer to observe the surface structure and corrosion phenomena of the steel bar sample to help identify the degree of corrosion. An observation plate 3 is installed in the cavity of the testing chamber. The cleaned steel bar sample can be placed in the observation plate 3, and the observation plate 3 is filled with a corrosive liquid to react with the steel bar sample. The testing mechanism then observes and tests the steel bar sample.

[0030] To facilitate clamping of the rebar sample, an installation disc 8 is rotatably connected inside the cleaning chamber, and a guide rod 12 is fixedly connected inside the cleaning chamber. An installation seat 11 is slidably connected to the guide rod 12, and a cleaning roller 14 is rotatably connected to the installation seat 11. A drive unit is provided on the working box 1 to drive the installation disc 8 to rotate. When the installation disc 8 rotates, the installation seat 11 moves back and forth along the guide rod 12, thereby enabling the cleaning roller 14 to perform deep cleaning on the outer wall of the rebar sample. The cleaning roller 14 can be a steel wool ball or a metal cleaning ball.

[0031] Furthermore, the aforementioned drive unit includes a rotating shaft 7 rotatably connected to the work box 1. A placement box 6 is fixedly connected to the bottom of the work box 1, and a mounting plate 8 is fixedly connected to one end of the rotating shaft 7. A drive motor 22 is fixedly connected inside the placement box 6, and the output end of the drive motor 22 meshes with the rotating shaft 7 through a gear. The drive motor 22 can drive the rotating shaft 7 to rotate, thereby causing the rotating shaft 7 to drive the mounting plate 8 to rotate synchronously.

[0032] To facilitate clamping of the steel bar samples, a telescopic component 4 is fixedly connected to the top of the working box 1. The telescopic component 4 can be a cylinder or an electric telescopic rod, and the output end of the telescopic component 4 extends into the cleaning chamber and is rotatably connected to a pressure plate 5. The axis of the pressure plate 5 coincides with that of the mounting plate 8, so that steel bar samples of different lengths can be clamped and limited. Friction pads are provided on the surfaces of the mounting plate 8 and the pressure plate 5, and the two ends of the steel bar samples abut against the surfaces of the friction pads, so that the pressure plate 5 and the mounting plate 8 rotate synchronously.

[0033] A lead screw 9 is rotatably connected inside the cleaning chamber, and a movable block 10 is threaded onto the lead screw 9. A mounting base 11 is fixedly connected to the movable block 10, and the lead screw 9 is driven by a gear meshing with the rotating shaft 7. When the rotating shaft 7 rotates, the lead screw 9 can also rotate synchronously, thereby causing the movable block 10 to reciprocate along the guide rod 12. A motor 13 is also fixedly connected to the mounting base 11, and a cleaning roller 14 is fixedly connected to the output end of the motor 13, driving the cleaning roller 14 to rotate through the motor 13.

[0034] To improve the deep cleaning effect of the steel bar samples, a spraying component is installed on the mounting base 11. When the mounting plate 8 rotates, the spraying end of the spraying component sprays liquid toward the outer wall of the sample. The spraying component can spray cleaning agent or cleaning water toward the outer wall of the steel bar.

[0035] Furthermore, the above-mentioned spraying assembly includes a spray pipe 15, which is fixedly connected to the mounting base 11, and the output end of the spray pipe 15 sprays cleaning agent or cleaning water towards the outer wall of the sample.

[0036] A first liquid storage tank 18 and a second liquid storage tank 21 are fixedly connected inside the placement box 6. The spray pipe 15 is connected to the first liquid storage tank 18 and the second liquid storage tank 21 through pipes. The first liquid storage tank 18 is filled with a cleaning agent, which can be phosphoric acid or hydrochloric acid, and can effectively remove rust from the steel surface. The second liquid storage tank 21 is filled with clean water.

[0037] The cleaning agent in the first storage tank 18 can be delivered to the spray pipe 15, and the cleaning water in the second storage tank 21 can also be delivered to the spray pipe 15.

[0038] To facilitate the delivery of the cleaning agent from the first storage tank 18 to the spray pipe 15, and to facilitate the delivery of the cleaning water from the second storage tank 21 to the spray pipe 15, a pressure boosting cylinder 16 is fixedly connected to the working box 1. A pressure boosting rod 17 is slidably connected to the pressure boosting cylinder 16. A piston is provided at one end of the pressure boosting rod 17. A spring is also provided inside the pressure boosting cylinder 16, with both ends of the spring abutting against the piston and the inner wall of the pressure boosting cylinder 16, respectively, to reset the pressure boosting rod 17. The piston is in contact with the inner wall of the pressure boosting cylinder 16. The pressure boosting cylinder 16 is provided with inlets and outlets. The system includes an air pipe and an air outlet pipe, with a one-way valve installed on the air inlet pipe. The other end of the booster rod 17 extends to the outside and is located below the movable block 10. A first three-way valve is installed on the air outlet pipe. The first channel of the first three-way valve is connected to the first liquid storage tank 18 through a pipe, and the second channel of the first three-way valve is connected to the second liquid storage tank 21 through a pipe. A second three-way valve is installed on the spray pipe 15. The first channel of the second three-way valve is connected to the first liquid storage tank 18 through a pipe, and the second channel of the second three-way valve is connected to the second liquid storage tank 21 through a pipe.

[0039] When the booster rod 17 drives the piston to press down against the booster cylinder 16, the gas inside the booster cylinder 16 can be pressurized and transported through the gas outlet pipe. Additionally, when it is necessary to transport the cleaning agent from the first storage tank 18 to the spray pipe 15, the passage of the first three-way valve can be adjusted to open the first passage, allowing gas to be transported to the first storage tank 18. At this time, the gas pressure inside the first storage tank 18 increases, and the first passage on the second three-way valve opens. The cleaning agent in the first storage tank 18 is then transported through the pipe to the spray pipe 15, where it is sprayed onto the outer wall of the steel sample. When the cleaning roller 14 moves back and forth against the outer wall of the steel sample, the spray pipe 15 sprays the cleaning agent towards the outer wall of the steel sample, thus significantly improving cleaning efficiency. Through physical friction and the chemical action of the cleaning agent, rust on the outer wall of the steel can be removed quickly and evenly, preventing surface rust from masking the actual degree of metal corrosion and improving the accuracy of subsequent testing.

[0040] In addition, when it is necessary to clean the cleaning agent on the outer wall of the steel bar sample, the passage of the first three-way valve can be adjusted to open the second passage, thereby delivering gas to the second liquid storage tank 21 through the second passage. At this time, the second passage on the second three-way valve is open, and the gas pressure in the second liquid storage tank 21 increases. The cleaning water in the second liquid storage tank 21 will be delivered to the spray pipe 15 through the pipeline, thereby spraying the outer wall of the steel bar sample, and quickly spraying and cleaning the cleaning agent on the outer wall of the steel bar to prevent the cleaning agent from remaining on the outer wall of the steel bar.

[0041] A connecting rod 19 is rotatably connected to the first liquid storage tank 18. One end of the connecting rod 19 extends into the cavity of the first liquid storage tank 18 and is equipped with a stirring paddle 20. The other end of the connecting rod 19 is fixedly connected to the bottom of the screw 9. This allows the cleaning agent to be mixed and stirred, preventing it from settling and ensuring its cleaning effect.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the corrosion resistance of building materials, comprising a working box (1), a cleaning cavity and a detection cavity are arranged on the working box (1) by a partition, a detection mechanism is arranged in the detection cavity, characterized in that, Also include: Rotary connection in the cleaning cavity installation disc (8), Wherein, the cleaning cavity fixedly connected with guide rod (12), the guide rod (12) is slidably connected with the mounting seat (11), the mounting seat (11) is rotatably connected with the cleaning roller (14), and the working tank (1) is provided with a driving part for driving the installation disc (8) to rotate, when the installation disc (8) rotates, the mounting seat (11) reciprocatingly moves along the guide rod (12); The liquid injection assembly is arranged on the mounting seat (11), and when the installation disc (8) rotates, the spraying end of the liquid injection assembly sprays liquid towards the outer wall of the sample.

2. The device for detecting the corrosion resistance of a building material according to claim 1, characterized in that, The driving part comprises a rotating shaft (7) rotatably connected to the working tank (1), the bottom of the working tank (1) is fixedly connected with a placing box (6), and one end of the installation disc (8) is fixedly connected to the rotating shaft (7), the placing box (6) is fixedly connected with a driving motor (22) inside, and the output end of the driving motor (22) is meshed and driven by a gear with the rotating shaft (7).

3. The device for detecting the corrosion resistance of a building material according to claim 2, characterized in that, The top of the working tank (1) is fixedly connected with a telescopic piece (4), and the output end of the telescopic piece (4) extends into the cleaning cavity and is rotatably connected with a pressure plate (5), and the axis of the pressure plate (5) coincides with that of the installation disc (8).

4. The device for detecting the corrosion resistance of a building material according to claim 2, characterized in that, The cleaning cavity is rotatably connected with a lead screw (9), the lead screw (9) is threadedly connected with a movable block (10), the mounting seat (11) is fixedly connected to the movable block (10), and the lead screw (9) is meshed and driven by a gear with the rotating shaft (7).

5. The device for detecting the corrosion resistance of a building material according to claim 2, characterized in that, The liquid injection assembly comprises a liquid injection pipe (15), the liquid injection pipe (15) is fixedly connected to the mounting seat (11), and the output end of the liquid injection pipe (15) sprays liquid towards the outer wall of the sample.

6. The device for detecting the corrosion resistance of a building material according to claim 5, wherein The first liquid storage tank (18) and the second liquid storage tank (21) are respectively fixedly connected in the placing box (6), the liquid injection pipe (15) is communicated with the first liquid storage tank (18) and the second liquid storage tank (21) through pipelines.

7. The device for detecting the corrosion resistance of a building material according to claim 6, characterized in that, The working tank (1) is fixedly connected with a booster cylinder (16), the booster cylinder (16) is slidably connected with a booster rod (17), one end of the booster rod (17) is provided with a piston, the piston is in close contact with the inner wall of the booster cylinder (16), the booster cylinder (16) is respectively provided with an air inlet pipe and an air outlet pipe, a one-way valve is arranged on the air inlet pipe, the other end of the booster rod (17) extends to the outside and is arranged below the movable block (10), a first three-way valve is arranged on the air outlet pipe, a first channel of the first three-way valve is communicated with the first liquid storage tank (18) through a pipeline, a second channel of the first three-way valve is communicated with the second liquid storage tank (21) through a pipeline, a second three-way valve is arranged on the liquid injection pipe (15), a first channel of the second three-way valve is communicated with the first liquid storage tank (18) through a pipeline, and a second channel of the second three-way valve is communicated with the second liquid storage tank (21) through a pipeline.

8. The device for detecting the corrosion resistance of a building material according to claim 7, characterized in that, A connecting rod (19) is rotatably connected to the first liquid storage tank (18), a stirring paddle (20) is arranged in the cavity of the first liquid storage tank (18) and extends to one end of the connecting rod (19), and the other end of the connecting rod (19) is fixedly connected to the bottom of the lead screw (9).

9. The device for detecting the corrosion resistance of a building material according to claim 1, characterized in that, The detection mechanism comprises an optical microscopic detector (2), and an observation disc (3) is arranged in the detection cavity.

10. The device for detecting the corrosion resistance of a building material according to claim 3, characterized in that, The surface of the mounting disc (8) and the surface of the pressing disc (5) are both provided with friction pads.

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