A device for detecting freeze-thaw resistance of asphalt waterproof coating

Abstract

The utility model discloses an asphalt waterproof paint anti freeze -thaw performance detection device, including support frame, the bottom frame right side hinged of support frame has the pneumatic cylinder, the top both sides of support frame central position all are fixedly connected with bearing bar, the axle rod one end of bearing bar is fixedly connected with the adjusting frame, the bottom of adjusting frame is close to the one end hinged of pneumatic cylinder and has the hinge joint, the hinge joint with the telescopic end fixed connection of pneumatic cylinder. This asphalt waterproof paint anti freeze -thaw performance detection device, through the hinge joint pneumatic cylinder in support frame bottom frame right side, adjusting frame bottom hinge joint and with the telescopic end connection of pneumatic cylinder, while support frame top passes through bearing bar and is fixed with adjusting frame, the telescopic of pneumatic cylinder can drive adjusting frame rotate around bearing bar, realizes the flexible adjustment of adjusting frame angle, and further adjusts the inclination angle of asphalt tank, can simulate freeze -thaw environment under different scenes according to the detection demand, promotes the flexibility and applicability of detection.

Description

Technical Field

[0001] This utility model relates to the field of asphalt coating tanks, specifically a device for testing the freeze-thaw resistance of asphalt waterproof coatings. Background Technology

[0002] Asphalt waterproof coatings are widely used in construction, road, and bridge engineering due to their excellent waterproofing properties. However, in cold regions or seasonal freeze-thaw environments, these coatings repeatedly undergo freezing and thawing processes, directly impacting the waterproofing effect and service life of the project. Therefore, accurate testing of the freeze-thaw resistance of asphalt waterproof coatings is crucial. Existing testing devices for the freeze-thaw resistance of asphalt waterproof coatings often suffer from problems during use, such as inconvenient adjustment, unstable fixation of the asphalt coating, and poor heating uniformity. For example, some devices cannot flexibly adjust the angle and position of the asphalt tank according to the testing requirements, resulting in a deviation between the simulated freeze-thaw environment and the actual use scenario during the testing process; in addition, the transmission structure design of some devices is unreasonable, resulting in poor rolling or mixing effect of the roller on the asphalt coating, which further reduces the reliability of the test data. Utility Model Content

[0003] The purpose of this invention is to provide a device for testing the freeze-thaw resistance of asphalt waterproof coatings, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A device for testing the freeze-thaw resistance of asphalt waterproof coating includes a support frame. A cylinder is hinged to the right side of the bottom frame of the support frame. Bearing rods are fixedly connected to the center of the top left and right sides of the support frame. An adjusting frame is fixedly connected to one end of the bearing rod. A hinge joint is hinged to the bottom end of the adjusting frame near the cylinder. The hinge joint is fixedly connected to the telescopic end of the cylinder. A fixing plate is fixedly connected to the end of the adjusting frame away from the hinge joint. Two sets of rotating shafts are fixedly connected to the front and rear parts of the upper frame of the adjusting frame. An inner rod is installed between the two sets of rotating shafts. A roller is installed at the center of the outer part of the inner rod.

[0005] As a further embodiment of this utility model: a mounting plate is fixedly connected to one end of the adjustment frame near the cylinder, and a suction cup is fixedly connected to the upper inner side of the mounting plate.

[0006] As a further embodiment of this utility model: a cylinder cover is installed at the end of the suction cup away from the mounting plate, and an asphalt tank is installed at the end of the cylinder cover away from the suction cup.

[0007] As a further improvement of this utility model, the top and bottom of the outer wall of the asphalt tank are both equipped with latches.

[0008] As a further improvement of this utility model: a guide wire mounting tube is fixedly connected to the center of the cylinder cover, the guide wire mounting tube passes through one end of the cylinder cover, and a heating rod is installed thereon.

[0009] As a further embodiment of this utility model: a motor is installed at the rear end of the fixing plate, the drive end of the motor passes through the back of the fixing plate and is fixedly connected to a pulley assembly, a belt is externally connected to the pulley assembly, and a pulley that contacts the inner rod is installed on the upper inner side of the belt.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a cylinder hinged to the right side of the support frame's bottom frame, an adjustment frame hinged to the bottom and connected to the cylinder's telescopic end, and the support frame fixed to the adjustment frame via a bearing rod. When the cylinder extends or retracts, it can drive the adjustment frame to rotate around the bearing rod, thus flexibly adjusting the angle of the adjustment frame and consequently the tilt angle of the asphalt tank. This allows for the simulation of freeze-thaw environments under different scenarios according to testing requirements, improving the flexibility and applicability of the testing.

[0011] This utility model uses a suction cup fixed to the mounting plate on the adjustment frame. The suction cup and the cylinder cover work together to achieve initial fixation. At the same time, the upper and lower locking buckles on the outer wall of the asphalt tank further reinforce the connection between the cylinder cover and the asphalt tank. The double fixing structure effectively prevents the asphalt tank from loosening or leaking during the operation of the device, ensuring the stability of the testing process.

[0012] This utility model uses a guide wire installation tube in the center of the cylinder cover to fix the heating rod inside the asphalt tank. The heating rod can directly heat the asphalt waterproof coating. Compared with external heating methods, the heating is more uniform and can accurately control the temperature of the asphalt coating. It simulates the melting process in the freeze-thaw cycle, improves the accuracy of the test results, and its structure is more optimized and its design is more reasonable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a device for testing the freeze-thaw resistance of asphalt waterproof coatings.

[0014] Figure 2 This is an assembly diagram of a device for testing the freeze-thaw resistance of asphalt waterproof coatings.

[0015] Figure 3 This is an installation diagram of a device for testing the freeze-thaw resistance of asphalt waterproof coatings.

[0016] In the diagram: 1. Support frame; 2. Asphalt tank; 3. Guide wire installation tube; 4. Cylinder; 5. Hinge joint; 6. Motor; 7. Fixing plate; 8. Roller; 9. Shaft; 10. Bearing rod; 11. Adjusting frame; 12. Mounting plate; 13. Suction cup; 14. Cylinder cover; 15. Lock; 16. Pulley assembly; 17. Belt; 18. Pulley; 19. Inner rod. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3 This utility model provides a technical solution: a device for testing the freeze-thaw resistance of asphalt waterproof coatings, including a support frame 1. A cylinder 4 is hinged to the right side of the bottom frame of the support frame 1. Bearing rods 10 are fixedly connected to the center of the top left and right sides of the support frame 1. The bearing rods 10 adopt a combination structure of precision bearings and rods, which can realize the flexible rotation of the adjustment frame 11. One end of the shaft of the bearing rod 10 is fixedly connected to the adjustment frame 11. The adjustment frame 11 is a rectangular frame structure made of aluminum alloy, which is lightweight and high-strength. The bottom of the adjusting frame 11 is hinged to a hinge joint 5 near the cylinder 4. The hinge joint 5 is fixedly connected to the telescopic end of the cylinder 4. The telescopic extension of the cylinder 4 drives the adjusting frame 11 to rotate around the bearing rod 10 to achieve angle adjustment. The end of the adjusting frame 11 away from the hinge joint 5 is fixedly connected to a fixing plate 7. The fixing plate 7 is used to install transmission components such as the motor 6. The front and rear parts of the upper frame of the adjusting frame 11 are fixedly connected to rotating shafts 9. There are two sets of rotating shafts 9. An inner rod 19 is installed between the two sets of rotating shafts 9. A roller 8 is installed on the outer part of the inner rod 19. The roller 8 adopts a rubber-coated metal core structure, which can avoid excessive damage to the coating when rolling asphalt coating. An installation plate 12 is fixedly connected to one end of the adjusting frame 11 near the cylinder 4. A suction cup 13 is fixedly connected to the upper inner side of the installation plate 12. The suction cup 13 is a vacuum suction cup, which has strong adsorption force and is easy to disassemble. A cylinder cover 14 is installed at the end of the suction cup 13 away from the installation plate 12. The cylinder cover 14 cooperates with the asphalt tank 2 to achieve a seal. The cylinder cover 14 is made of high-temperature resistant plastic material. An asphalt tank 2 is installed at the end of the cylinder cover 14 away from the suction cup 13. The asphalt tank 2 has a cylindrical structure with a volume of 5L, which is convenient for holding the asphalt waterproof coating to be tested. Locks 15 are installed on the top and bottom of the outer wall of the asphalt tank 2. The locking action of the locks 15 further strengthens the connection between the cylinder cover 14 and the asphalt tank 2. A guide wire mounting tube 3 is fixedly connected to the center of the cylinder cover 14. The guide wire mounting tube 3 is made of high-temperature resistant ceramic material. The guide wire mounting tube 3 passes through one end of the cylinder cover 14 and is equipped with a heating rod. The heating rod is a stainless steel heating rod of model XY-1000 with a power of 1000W, which can realize rapid and uniform heating of asphalt coating. A motor 6 is installed at the rear end of the fixing plate 7. The drive end of the motor 6 passes through the back of the fixing plate 7 and is fixedly connected to a pulley assembly 16. The pulley assembly 16 consists of a driving pulley and a driven pulley. The driving pulley is fixedly connected to the drive end of the motor 6. The external transmission connection of the pulley assembly 16 is a belt 17. The belt 17 is a polyurethane synchronous belt, which has high transmission accuracy and long service life. The inner upper part of the belt 17 is equipped with a pulley 18 that contacts the inner rod 19. The motor 6 drives the pulley assembly 16 to rotate, which is transmitted to the pulley 18 via the belt 17, thereby driving the inner rod 19 and the roller 8 to rotate.

[0019] The working principle of this utility model is as follows: When in use, the asphalt waterproof coating to be tested is first poured into the asphalt tank 2, the lid 14 is covered, and the lid 14 is locked and fixed to the asphalt tank 2 by the buckle 15. At the same time, the suction cup 13 on the mounting plate 12 is used to adsorb and fix the lid 14 to ensure the airtightness of the asphalt tank 2. Then, according to the testing requirements, cylinder 4 is started. Cylinder 4 extends and retracts, causing the adjusting frame 11 to rotate around the bearing rod 10, adjusting the asphalt tank 2 to the required angle. The heating rod is then started. The heating rod, which extends into the asphalt tank 2 through the guide wire installation tube 3, heats the asphalt coating, simulating the melting stage in the freeze-thaw cycle. During the heating process, the coating temperature can be monitored in real time by a temperature sensor to ensure accurate temperature control. Then, the motor 6 is started, and the motor 6 drives the pulley assembly 16 to rotate. The rotation is transmitted to the pulley 18 via the belt 17, which drives the inner rod 19 and the roller 8 to rotate. The roller 8 uniformly crushes or stirs the coating in the asphalt tank 2, simulating the stress situation in actual use. During the testing process, the freeze-thaw cycle can be simulated by repeatedly controlling the start and stop of the heating rod and the extension and retraction of the cylinder 4. The performance of the asphalt coating can be tested periodically. After the test is completed, the motor 6 and the heating rod are turned off. After the asphalt coating cools down, the lock 15 is opened, the cylinder cover 14 and the asphalt tank 2 are removed, and the testing work is completed.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for testing the freeze-thaw resistance of asphalt waterproof coatings, comprising a support frame (1), characterized in that: A cylinder (4) is hinged to the right side of the bottom frame of the support frame (1). A bearing rod (10) is fixedly connected to the center of the top left and right sides of the support frame (1). An adjustment frame (11) is fixedly connected to one end of the shaft of the bearing rod (10). A hinge joint (5) is hinged to the bottom of the adjustment frame (11) near the cylinder (4). The hinge joint (5) is fixedly connected to the telescopic end of the cylinder (4). A fixing plate (7) is fixedly connected to the end of the adjustment frame (11) away from the hinge joint (5). A rotating shaft (9) is fixedly connected to the front and rear parts of the upper frame of the adjustment frame (11). There are two sets of rotating shafts (9). An inner rod (19) is installed between the two sets of rotating shafts (9). A roller (8) is installed at the center of the outside of the inner rod (19).

2. The device for testing the freeze-thaw resistance of asphalt waterproof coatings according to claim 1, characterized in that: The adjustment frame (11) is fixedly connected to a mounting plate (12) at one end near the cylinder (4), and a suction cup (13) is fixedly connected to the upper inner side of the mounting plate (12).

3. The device for testing the freeze-thaw resistance of asphalt waterproof coatings according to claim 2, characterized in that: A cap (14) is installed at the end of the suction cup (13) away from the mounting plate (12), and an asphalt tank (2) is installed at the end of the cap (14) away from the suction cup (13).

4. The device for testing the freeze-thaw resistance of asphalt waterproof coatings according to claim 3, characterized in that: The top and bottom of the outer wall of the asphalt tank (2) are both equipped with latches (15).

5. The device for testing the freeze-thaw resistance of asphalt waterproof coatings according to claim 3, characterized in that: The center of the cylinder cover (14) is connected to and fixed with a guide wire mounting tube (3), which passes through one end of the cylinder cover (14) and is equipped with a heating rod.

6. The device for testing the freeze-thaw resistance of asphalt waterproof coatings according to claim 1, characterized in that: A motor (6) is installed at the rear end of the fixed plate (7). The drive end of the motor (6) passes through the back of the fixed plate (7) and is fixedly connected to a pulley assembly (16). A belt (17) is connected to the outside of the pulley assembly (16). A pulley (18) that contacts the inner rod (19) is installed on the upper inner side of the belt (17).

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