Coating internal corner cracking performance testing device

Abstract

The utility model provides a coating internal corner cracking performance testing device. The coating internal corner cracking performance testing device comprises a testing mold; the test mold is provided with a first test surface A, a first test surface B, a second test surface A, a second test surface B,..., an Nth test surface A and an Nth test surface B, the first test surface A and the first test surface B are connected and form an included angle alpha 1, and the second test surface A and the second test surface B are connected and form an included angle alpha 2,..., the Nth test surface A and the Nth test surface B are connected and form an included angle alpha N, and the angle values of alpha 1, alpha 2,... alpha N are different from each other. The device can accurately simulate the use scene of the coating, so as to ensure that the test result is accurate and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of performance testing of waterproof coatings, and particularly relates to a device for testing the cracking performance of coatings at internal corners. Background Art

[0002] The anti-cracking performance during the construction of waterproof coatings is an important construction performance index for evaluating the actual waterproof effect of waterproof coatings. Cracking after the construction of waterproof coatings will lead to an incomplete waterproof layer and is extremely likely to cause water leakage from the cracking area, resulting in the inability of the waterproof coating to achieve the true waterproof effect.

[0003] Currently, for the testing and evaluation of the anti-cracking performance of waterproof coatings at internal corners, the tests are all carried out at the internal corners (wall corners) of ordinary concrete buildings, and the internal corners used for testing in general are all 90° angles. This does not fully conform to the actual wall corners of buildings (although there are 90° angles at the actual internal corners of buildings, there are also some internal corners with accumulated materials, or the internal corners have been treated with arc plastering before the construction of waterproof coatings, and the actual angles of these internal corners vary between 90° and 180°). Therefore, using such a method has the defect that the actual use scenario of the waterproof coating cannot be accurately simulated, and thus the test results are inaccurate. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a device for testing the cracking performance of coatings at internal corners, which can accurately simulate the use scenario of the coatings, and thus ensure the accuracy and reliability of the test results.

[0005] The utility model provides a device for testing the cracking performance of coatings at internal corners, including: a test mold;

[0006] The test mold has a first test surface A, a first test surface B, a second test surface A, a second test surface B,..., an Nth test surface A and an Nth test surface B, and the first test surface A and the first test surface B are connected and form an included angle α1 therebetween, the second test surface A and the second test surface B are connected and form an included angle α2 therebetween,..., the Nth test surface A and the Nth test surface B are connected and form an included angle αN therebetween, where the angular values of α1, α2,..., αN are different from each other.

[0007] Preferably, the first test surface A, the first test surface B, the second test surface A, the second test surface B,..., the Nth test surface A and the Nth test surface B are connected in sequence to form a stepped shape as a whole.

[0008] Preferably, it further includes a first housing, a first heating device and a controller;

[0009] The test mold and the first heating device are both disposed in the inner cavity of the first housing. The controller is electrically connected to the first heating device to control the first heating device to heat the inner cavity of the first housing.

[0010] Preferably, a temperature monitoring device is further included;

[0011] The temperature monitoring device is disposed in the inner cavity of the first housing and is electrically connected to the controller. The temperature monitoring device collects the temperature information of the inner cavity of the first housing in real time and sends the information to the controller. The controller controls the operation of the first heating device according to the temperature information.

[0012] Preferably, a humidity adjusting device is further included;

[0013] The humidity adjusting device is disposed in the inner cavity of the first housing and is electrically connected to the controller, so that the controller can control the humidity adjusting device to adjust the humidity of the inner cavity of the first housing.

[0014] Preferably, the humidity adjusting device includes a second housing and a second heating device;

[0015] An inlet hole and a steam discharge hole are provided on the second housing. External water can enter the second housing through the inlet hole. The second heating device is disposed in the second housing and is electrically connected to the controller, so that the controller can control the second heating device to heat the water entering the second housing and form water vapor, which is then discharged from the steam discharge hole.

[0016] Preferably, a humidity monitoring device is further included;

[0017] The humidity monitoring device is disposed in the inner cavity of the first housing and is electrically connected to the controller. The humidity monitoring device collects the humidity information of the inner cavity of the first housing in real time and sends the information to the controller. The controller controls the operation of the second heating device according to the humidity information.

[0018] Preferably, the humidity adjusting device further includes a cover plate and a driving device;

[0019] The driving device is fixedly connected to the second housing and is in transmission connection with the cover plate to drive the cover plate to move between a first position covering the steam discharge hole and a second position opening the steam discharge hole;

[0020] The controller is electrically connected to the driving device, so that the controller can control the operation of the driving device according to the humidity information of the inner cavity of the first housing sent by the humidity monitoring device.

[0021] Preferably, the number of the steam discharge holes is more than two, and the number of the cover plates is equal to that of the steam discharge holes and they correspond to each other one by one.

[0022] Preferably, it further includes a water inlet pipe;

[0023] One end of the water inlet pipe is connected to the water inlet hole, and the other end can be connected to an external water source so that the water in the external water source can enter the second housing through the water inlet pipe.

[0024] For the coating internal corner cracking performance testing device provided by the present invention, by adopting the technical solution that the first test surface A and the first test surface B are connected and form an included angle α1 therebetween, the second test surface A and the second test surface B are connected and form an included angle α2 therebetween,..., the Nth test surface A and the Nth test surface B are connected and form an included angle αN therebetween, and the angular values of α1, α2,..., αN are different from each other, the use scenarios of the coating can be accurately simulated, and thus the test results can be ensured to be accurate and reliable. Description of the Drawings

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0026] Figure 1 is a schematic structural diagram of an embodiment of the coating internal corner cracking performance testing device of the present invention;

[0027] Figure 2 is Figure 1 a schematic diagram of the test mold in

[0028] Figure 3 is Figure 1 an enlarged schematic diagram of part A in

[0029] In the figure: 1 - test mold; 2 - first test surface A; 3 - first test surface B; 4 - second test surface A; 5 - second test surface B; 6 - Nth test surface A; 7 - Nth test surface B; 8 - first housing; 9 - first heating device; 10 - controller; 11 - temperature monitoring device; 12 - humidity adjusting device; 13 - second housing; 14 - second heating device; 15 - water inlet hole; 16 - steam discharge hole; 17 - humidity monitoring device; 18 - cover plate; 19 - driving device; 20 - water inlet pipe. Detailed Embodiments

[0030] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0031] As Figure 1 shown, a coating internal corner cracking performance testing device includes: a testing mold 1. As Figure 2 shown, the testing mold 1 has a first testing surface A2, a first testing surface B3, a second testing surface A4, a second testing surface B5, …, an Nth testing surface A6 and an Nth testing surface B7, and the first testing surface A2 and the first testing surface B3 are connected and form an included angle α1 therebetween, the second testing surface A4 and the second testing surface B5 are connected and form an included angle α2 therebetween, …, the Nth testing surface A6 and the Nth testing surface B7 are connected and form an included angle αN therebetween, where the angular values of α1, α2, …, αN are different from each other. In actual use, the coating can be applied on the first testing surface A2 and the first testing surface B3 and / or the second testing surface A4 and the second testing surface B5 and / or … and / or the Nth testing surface A6 and the Nth testing surface B7 to test the cracking performance of the coating under different internal corners, so that the actual use scenario of the coating can be more accurately simulated during the testing process, thereby ensuring the accuracy and reliability of the test results. In actual production, as Figure 2 shown, the first testing surface A2, the first testing surface B3, the second testing surface A4, the second testing surface B5, …, the Nth testing surface A6 and the Nth testing surface B7 are connected in sequence to form a stepped shape as a whole.

[0032] Specifically, as Figure 1 shown, it further includes a first housing 8, a first heating device 9 and a controller 10. The testing mold 1 and the first heating device 9 are both arranged in the inner cavity of the first housing 8, and the controller 10 is electrically connected to the first heating device 9 to control the first heating device 9 to heat the inner cavity of the first housing 8. By adopting such a method, the temperature of the inner cavity of the first housing 8 can be adjusted by the first heating device 9, thereby more accurately simulating the temperature environment of the coating in actual use. It should be noted that the testing mold 1 can be taken out from the inner cavity of the first housing 8 and then placed back into the inner cavity of the first housing 8 after re-coating the coating to meet the requirement of repeated testing.

[0033] Furthermore, as Figure 1As shown, it further includes a temperature monitoring device 11. The temperature monitoring device 11 is arranged in the inner cavity of the first housing 8 and is electrically connected to the controller 10. The temperature monitoring device 11 collects the temperature information in the inner cavity of the first housing 8 in real time and sends this information to the controller 10. The controller 10 controls the first heating device 9 to work according to this temperature information. In this way, it can ensure that the temperature in the inner cavity of the first housing 8 is more in line with the actual test requirements and avoid large fluctuations in the temperature value in the inner cavity of the first housing 8.

[0034] As an implementable manner, as Figure 1 shown, it further includes a humidity adjusting device 12. The humidity adjusting device 12 is arranged in the inner cavity of the first housing 8 and is electrically connected to the controller 10, so that the controller 10 can control the humidity adjusting device 12 to adjust the humidity in the inner cavity of the first housing 8. By adopting such a method, the humidity in the inner cavity of the first housing 8 can be adjusted through the humidity adjusting device 12, and thus the humidity environment in the actual use of the coating can be simulated more accurately. Among them, as Figure 1 shown, the humidity adjusting device 12 includes a second housing 13 and a second heating device 14. The second housing 13 is provided with a water inlet hole 15 and a steam discharge hole 16. External water can enter the second housing 13 through the water inlet hole 15. The second heating device 14 is arranged in the second housing 13 and is electrically connected to the controller 10, so that the controller 10 can control the second heating device 14 to heat the water entering the second housing 13 and form water vapor and then discharge it from the steam discharge hole 16. In actual production, it can be as Figure 1 shown, it further includes a water inlet pipe 20. One end of the water inlet pipe 20 is connected to the water inlet hole 15, and the other end can be connected to an external water source, so that the water in the external water source can enter the second housing 13 through the water inlet pipe 20.

[0035] Furthermore, as Figure 1 shown, it further includes a humidity monitoring device 17; the humidity monitoring device 17 is arranged in the inner cavity of the first housing 8 and is electrically connected to the controller 10. The humidity monitoring device 17 collects the humidity information in the inner cavity of the first housing 8 in real time and sends this information to the controller 10. The controller 10 controls the second heating device 14 to work according to this humidity information. When the humidity monitoring device 17 finds that the humidity in the inner cavity of the first housing 8 is low, the controller 10 controls the second heating device 14 to heat the water to form vapor and discharge it from the steam discharge hole 16. When the humidity monitoring device 17 finds that the humidity in the inner cavity of the first housing 8 is high, the controller 10 controls the second heating device 14 to stop heating the water, and at this time the water no longer forms vapor. In this way, it can ensure that the humidity in the inner cavity of the first housing 8 is more in line with the actual test requirements and avoid large fluctuations in the humidity value in the inner cavity of the first housing 8.

[0036] More preferably, as Figure 1 、3 As shown, the humidity adjustment device 12 further includes a cover plate 18 and a driving device 19. The driving device 19 is fixedly connected to the second housing 13 and is in transmission connection with the cover plate 18 to drive the cover plate 18 to convert and move between a first position covering the steam discharge hole 16 and a second position opening the steam discharge hole 16. The controller 10 is electrically connected to the driving device 19 so that the controller 10 can control the operation of the driving device 19 according to the humidity information of the inner cavity of the first housing 8 sent by the humidity monitoring device 17. When the humidity monitoring device 17 finds that the humidity in the inner cavity of the first housing 8 is relatively low, the controller 10 controls the driving device 19 to drive the cover plate 18 to move to the second position, so that the water vapor is discharged from the steam discharge hole 16. When the humidity monitoring device 17 finds that the humidity in the inner cavity of the first housing 8 is relatively high, the controller 10 controls the driving device 19 to drive the cover plate 18 to move to the first position. At this time, the steam discharge hole 16 is in a closed state, and the water vapor cannot be discharged from the steam discharge hole 16. In actual production, the number of the steam discharge holes 16 is more than two, and the number of the cover plates 18 is equal to the number of the steam discharge holes 16 and corresponds to each other one by one.

[0037] The above are only the embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A paint inside corner cracking performance testing device, characterized in that: It includes: A testing mold (1); The testing mold (1) has a first testing surface A (2), a first testing surface B (3), a second testing surface A (4), a second testing surface B (5), …, an Nth testing surface A (6) and an Nth testing surface B (7), and the first testing surface A (2) and the first testing surface B (3) are connected and form an included angle α1 therebetween, the second testing surface A (4) and the second testing surface B (5) are connected and form an included angle α2 therebetween, …, the Nth testing surface A (6) and the Nth testing surface B (7) are connected and form an included angle αN, and the angular values of α1, α2, …, αN are different from each other. Wherein, the first testing surface A (2), the first testing surface B (3), the second testing surface A (4), the second testing surface B (5), …, the Nth testing surface A (6) and the Nth testing surface B (7) are sequentially connected to form a stepped shape as a whole.

2. The paint inside corner cracking performance testing device according to claim 1, characterized in that: It further includes a first housing (8), a first heating device (9) and a controller (10); The testing mold (1) and the first heating device (9) are both arranged in the inner cavity of the first housing (8), and the controller (10) is electrically connected to the first heating device (9) to control the first heating device (9) to heat the inner cavity of the first housing (8).

3. The paint inside corner cracking performance testing device according to claim 2, characterized in that: It further includes a temperature monitoring device (11); The temperature monitoring device (11) is arranged in the inner cavity of the first housing (8) and is electrically connected to the controller (10). The temperature monitoring device (11) collects the temperature information of the inner cavity of the first housing (8) in real time and sends this information to the controller (10), and the controller (10) controls the first heating device (9) to work according to this temperature information.

4. The paint inside corner cracking performance testing device according to claim 3, characterized in that: It further includes a humidity adjusting device (12); The humidity adjusting device (12) is arranged in the inner cavity of the first housing (8) and is electrically connected to the controller (10) so that the controller (10) can control the humidity adjusting device (12) to adjust the humidity of the inner cavity of the first housing (8).

5. The paint inside corner cracking performance testing device according to claim 4, characterized in that: The humidity adjusting device (12) includes a second housing (13) and a second heating device (14); The second housing (13) is provided with a water inlet hole (15) and a steam discharge hole (16). External water can enter the second housing (13) through the water inlet hole (15). The second heating device (14) is arranged inside the second housing (13) and is electrically connected to the controller (10), so that the controller (10) can control the second heating device (14) to heat the water entering the second housing (13), and after forming water vapor, it is discharged from the steam discharge hole (16).

6. The coating inner corner cracking performance testing device according to claim 5, characterized in that: It further includes a humidity monitoring device (17); The humidity monitoring device (17) is arranged in the inner cavity of the first housing (8) and is electrically connected to the controller (10). The humidity monitoring device (17) collects the humidity information of the inner cavity of the first housing (8) in real time and sends this information to the controller (10). The controller (10) controls the operation of the second heating device (14) according to this humidity information.

7. The coating inner corner cracking performance testing device according to claim 6, characterized in that: The humidity adjusting device (12) further includes a cover plate (18) and a driving device (19); The driving device (19) is fixedly connected to the second housing (13) and is in transmission connection with the cover plate (18) to drive the cover plate (18) to move between a first position covering the steam discharge hole (16) and a second position opening the steam discharge hole (16); The controller (10) is electrically connected to the driving device (19), so that the controller (10) can control the operation of the driving device (19) according to the humidity information of the inner cavity of the first housing (8) sent by the humidity monitoring device (17).

8. The coating inner corner cracking performance testing device according to claim 7, characterized in that: The number of the steam discharge holes (16) is two or more, and the number of the cover plates (18) is equal to the number of the steam discharge holes (16) and they correspond one by one.

9. The coating inner corner cracking performance testing device according to claim 5, characterized in that: It further includes a water inlet pipe (20); One end of the water inlet pipe (20) is connected to the water inlet hole (15), and the other end can be connected to an external water source, so that the water in the external water source can enter the second housing (13) through the water inlet pipe (20).

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