Building coating alkali resistance detection device

Abstract

The utility model relates to the technical field of building construction detection, in particular to a building coating alkali resistance detection device which comprises a test box, a liquid level control alarm, a camera shooting assembly and a shower assembly, the test box comprises an open box body and a box cover, and the bottom of the box body is communicated with a liquid injection guide pipe; sealing layers are arranged on the inner side walls of the box body and are used for mounting test plates; the liquid level control alarm is arranged on the outer side of the box body, a probe of the liquid level control alarm extends into the box body, and the probe is placed at the bottom of the box body; the camera shooting end of the high-definition camera faces the inner side wall of the box body. According to the detection device provided by the utility model, the precision and effectiveness of an experiment are improved from multiple angles, the structure is simple and clear, the effective detection on the alkali resistance of the building coating is realized, the labor is effectively reduced, the subjective and environmental interference is avoided, and the accuracy and efficiency of the experiment are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction detection, in particular to an alkali resistance detection device for building coatings. Background Art

[0002] Paint is a substance that can form a complete film and firmly adhere to the surface of an object when applied to the surface of the object. Architectural paint has decorative functions, protective functions and habitability improvement functions. Early paints were mainly made of natural animal fats, vegetable fats and natural resins. In addition to a small amount of natural resins and oils, current paints mainly use synthetic resins as film-forming substances. In order to ensure the durability of building materials, it is necessary to conduct an alkali resistance test on the paint during use. The paint is applied on the test board and immersed in an alkaline solution for a period of time. The corrosion degree of the paint on the test board is tested to determine the alkali resistance of the paint.

[0003] In practice, after the coating is applied to the test board, the test board needs to be sealed around and on the back with a mixture of paraffin and rosin, and then vertically immersed in the experimental solution for a period of time. After the immersion, the test board needs to be manually taken out and rinsed with water. After the water stains are absorbed with filter paper, the surface is manually observed to see if there is discoloration, blistering, peeling, powdering, softening, etc. In actual operation, due to the influence of operation and experimental environment, the single sealing layer formed by the paraffin rosin mixture is sometimes damaged, resulting in sealing failure and affecting the test; secondly, during the test, it is not easy to rely solely on manual operation to ensure the verticality of the test board and the stability of the liquid level; in addition, the surface changes of the test board can only be determined by naked eye observation. On the one hand, subjective factors have a greater impact, resulting in deviations in the experimental results. On the other hand, the current equipment cannot record the sample immersion process. The above factors will directly affect the accuracy and efficiency of the experiment. Therefore, a building coating alkali resistance detection device is needed. Utility Model Content

[0004] Aiming at the problem in the prior art that the test accuracy and efficiency are affected by paint damage, test plate verticality and liquid level instability, the utility model provides a building paint alkali resistance detection device.

[0005] The utility model is realized by the following technical solutions:

[0006] A device for testing the alkali resistance of building coatings comprises a test box, a liquid level control alarm, a camera assembly and a shower assembly. The test box comprises an open box body and a box cover. The bottom of the box body is connected with a liquid injection conduit, which is connected to an external liquid injection device and is provided with a conduit clamp. The inner side walls of the box body are provided with a sealing layer, which is used to install a test plate. The liquid level control alarm is arranged outside the box body, and a probe of the liquid level control alarm extends into the box body, and the probe is placed on the bottom of the box body.

[0007] The camera assembly includes a bracket and a plurality of high-definition cameras, one end of the bracket is fixed to the box cover, and the other end is connected to the outer shell of the high-definition camera, and the camera end of the high-definition camera faces the inner wall of the box body;

[0008] The shower assembly includes a water guide pipe and a plurality of water outlet heads. One end of the water guide pipe penetrates the box cover and is connected to the external water supply end, and the other end is connected to the water outlet head. The water outlet of the water outlet head faces the upper inner wall of the box body.

[0009] During the experiment, the test solution is injected into the box and the test plate is fixed to the side wall of the box through the sealing layer.

[0010] Preferably, the box body and the box cover are clamped together by a groove and protrusion structure.

[0011] Preferably, the bracket includes a mounting rod and multiple connecting rods, one end of the mounting rod is connected to the center of the box cover, and the other end is connected to the connecting rod; the multiple connecting rods are arranged circumferentially along the mounting rod, the connecting rods correspond one-to-one to the high-definition cameras, and the end of the connecting rod away from the mounting rod is connected to the outer casing of the high-definition camera.

[0012] Preferably, a mounting through hole is provided on the box cover, one end of the bracket passes through the mounting hole and extends out of the box cover, and the bracket is threadedly connected to the box cover.

[0013] Preferably, the mounting rod is a spiral telescopic hollow rod.

[0014] Preferably, the high-definition camera is connected to the computer through a wire leading out of the box, and the wire passes through the inside of the mounting rod and leads out of the box.

[0015] Preferably, a water valve is installed on the portion of the water conduit located outside the box.

[0016] Preferably, the sealing layer includes a first side portion, a bottom surface and a second side portion, the first side portion is parallel to and connected to the inner wall of the box, one end of the bottom surface is connected to the bottom of the first side portion, and the other end is connected to the bottom of the second side portion, and the second side portion is parallel to the first side portion; the first side portion, the bottom surface and the second side portion form a test plate groove at the bottom of the box, and the bottom of the test plate is located in the test plate groove.

[0017] Preferably, a sealing column is provided between two adjacent sealing layers, and a limiting groove of the limiting test plate is formed between the side surface of the sealing column and the first side portion.

[0018] Preferably, a plurality of adjustment bolts are provided on the outer bottom of the box body, and a level bubble is provided on the outer side wall of the box body.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model provides a device for detecting the alkali resistance of building coatings with a sealing layer to seal the test plate, which can ensure the sealing of the test plate and the verticality of the test plate. In addition, a liquid level control alarm is provided to detect the change of the liquid level in the box. When liquid replenishment is required, liquid replenishment is performed through the liquid injection conduit at the bottom of the box, so that disturbance to the upper part of the test plate can be avoided during liquid replenishment. At the same time, the change process of the surface of the test plate can be photographed and transmitted and recorded in real time through the setting of a high-definition camera, so that the change of the surface of the test plate can be more clearly determined through the comparison of different test sections. The use of the shower assembly can realize the flushing of the surface of the test plate without manually moving the test plate, saving labor to ensure safety and avoiding disturbance to the test plate. The detection device proposed by the utility model improves the accuracy and effectiveness of the experiment from multiple angles, has a simple and clear structure, realizes the effective detection of the alkali resistance of building coatings, effectively reduces labor, avoids subjective and environmental interference, and significantly improves the accuracy and efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a device for testing the alkali resistance of architectural coatings according to the utility model;

[0022] Figure 2 The utility model is a top view without a cover of a device for detecting alkali resistance of architectural coatings.

[0023] In the figure, 1. box body; 2. box cover; 3. water pipe; 4. water valve; 5. wire; 6. computer; 7. liquid level control alarm; 8. water outlet; 9. joint; 10. sealing layer; 11. mounting rod; 12. test plate; 13. experimental solution; 14. connecting rod; 15. high-definition camera; 16. liquid injection hole; 17. liquid injection catheter; 18. catheter clamp; 19. adjustment bolt; 20. level bubble; 21. probe; 10-1. first side; 10-2. second side; 10-3. bottom surface; 10-4. sealing column. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0025] The utility model discloses a device for detecting the alkali resistance of architectural coatings. Figure 1, including a test box, a liquid level control alarm 7, a camera assembly and a shower assembly. The test box includes an open box body 1 and a box cover 2. The box body 1 and the box cover 2 are clamped together by a groove and convex block structure. In this embodiment, the box body 1 and the box cover 2 are both made of inorganic glass. The box body 1 is 22 cm high, 12 cm wide and long, and 1 cm thick. The box cover 2 is 5 cm high, 12 cm wide and high. The upper edge of the box body 1 is concave, and the lower edge of the box cover 2 is convex; there is a rubber coating on the concave and convex contact surfaces of the box body 1 and the box cover 2 to achieve a sealing effect.

[0026] The bottom of the box body 1 is connected to an injection conduit 17 through an injection hole 16 . The injection conduit 17 is connected to an external injection device. A conduit clamp 18 is provided on the injection conduit 17 to control the injection and stop of the experimental solution 13 .

[0027] The inner side walls of the box body 1 are all provided with a sealing layer 10, and the sealing layer 10 is used to install the test plate 12; the sealing layer 10 includes a first side portion 10-1, a bottom surface 10-3 and a second side portion 10-2, the first side portion 10-1 is parallel to and connected to the inner wall of the box body 1, one end of the bottom surface 10-3 is connected to the bottom of the first side portion 10-1, and the other end is connected to the bottom of the second side portion 10-2, and the second side portion 10-2 is parallel to the first side portion 10-1; the first side portion 10-1, the bottom surface 10-3 and the second side portion 10-2 form a test plate 12 groove at the bottom of the box body 1, and the bottom of the test plate 12 is located in the test plate 12 groove. In this embodiment, the inner wall of the box body 1 is adhered with a sealing layer 10 by epoxy resin adhesive. The sealing layer 10 is made of silicone material and has a thickness of 5 mm. The side cross-section of the sealing layer 10 is in the shape of a 5 mm thick. The width of the first side portion 10-1 is 6 cm and the height is 20 cm. The width of the bottom surface 10-3 is 5 mm and the length is 6 cm. The height of the second side portion 10-2 is 1 cm and the length is 6 cm.

[0028] A sealing column 10-4 is provided between two adjacent sealing layers 10, and a limiting groove for limiting the test plate 12 is formed between the side of the sealing column 10-4 and the first side portion 10-1. In this embodiment, the sealing column 10-4 is made of silicone material, and the four sealing columns 10-4 are respectively closely attached to the four inner corners of the box body 1, and the width, length and height are 5mm, 5mm and 20cm respectively at a thickness of 5mm from the adhesive surface. The sealing layer 10 and the sealing column 10-4 can effectively seal and wrap the test plate 12 inside, thereby realizing the second sealing of the test plate 12.

[0029] The liquid level control alarm 7 is arranged outside the box 1, and the probe 21 of the liquid level control alarm 7 extends into the box 1, and the probe 21 is placed on the bottom of the box 1, and its wire 5 passes through the wire 5 hole of the box cover 2 and leads out of the box 1. In this embodiment, the liquid level control alarm 721 / 7 is a YDW322 immersion type liquid level transmitter.

[0030] The camera assembly includes a bracket and a plurality of high-definition cameras 15. The bracket includes a mounting rod 11 and a plurality of connecting rods 14. One end of the mounting rod 11 is connected to the center of the box cover 2, and the other end is connected to the connecting rod 14. The plurality of connecting rods 14 are arranged along the circumference of the mounting rod 11. The connecting rods 14 correspond to the high-definition cameras 15 one by one. One end of the connecting rod away from the mounting rod 11 is connected to the housing of the high-definition camera 15. In this embodiment, a mounting through hole is provided on the box cover 2, one end of the bracket passes through the mounting hole and extends out of the box cover 2, and the bracket is threadedly connected to the box cover 2.

[0031] The camera end of the high-definition camera 15 faces the inner wall of the box body 1. The high-definition camera 15 is connected to the computer 6 through the wire 5 leading out of the box body 1. The wire 5 runs through the inside of the mounting rod 11 and leads out of the box body 1. In this embodiment, the high-definition camera 15 is an AN112 dual-lens endoscope camera. The mounting rod 11 is a spiral telescopic hollow rod with adjustable length. The connecting rod 14 is made of stainless steel with epoxy resin coating on the surface. Four high-definition cameras 15 are arranged in a cross shape and are respectively fixed to the ends of the connecting rod 14. The bottom of the mounting rod 11 has a wire 5 hole with a silicone sealing ring. The wire 5 of the high-definition camera 15 passes through the wire 5 hole and is inserted into the inside of the mounting rod 11.

[0032] The shower assembly includes a water pipe 3 and a plurality of water outlets 8. One end of the water pipe 3 passes through the box cover 2 and is connected to the external water supply end, and the other end is connected to the water outlet 8. The water outlet of the water outlet 8 faces the upper inner wall of the box body 1. The part of the water pipe 3 located outside the box body 1 is installed with a water valve 4. In this embodiment, the water outlet 8 is a YJ-6 waterfall-type water outlet 8, and there are four of them. The water outlets face the four side walls of the box body 1 respectively. The water outlet 8 is bonded to the box cover 2 at a distance of 2.5 cm from the inner side by epoxy resin; the water pipe 3 inside the box cover 2 is bonded to the top of the box cover 2, and the water pipe 3 is connected to the strip water outlet 8 through a five-way joint 9.

[0033] A plurality of adjustment bolts 19 are provided at the outer bottom of the box 1, and a level bubble 20 is provided at the outer side wall of the box 1. In this embodiment, the height of the adjustment bolts 19 is 1 cm to 2 cm, and they are provided at the four corners of the bottom of the box 1. Two level bubbles 20 are provided, and are relatively arranged on the outer side of the box 1 to ensure the level of the test equipment and the liquid level during the test.

[0034] The box cover 2 is provided with an opening for the water pipe 3, an opening for the mounting rod 11 for spiral connection, and a wire 5 hole for the liquid level control alarm 7, and the openings are all sealed by a silicone sleeve.

[0035] The implementation principle of the utility model of a building coating alkali resistance detection device is:

[0036] (1) Treat the test plate 12 in accordance with GB / T9271 and coat the product under test according to the method specified in the specification. The painted test plate 12 should be dried and cured at a temperature of 23℃±2℃ and a relative humidity of (50±5)% for the time specified in the product standard, and a mark should be made at 2 / 3 of the height of the test plate;

[0037] (2) At a temperature of (23±2)°C, add an excess of analytically pure calcium hydroxide to the third-grade water that meets the requirements of GB / T6682 to prepare an alkaline solution and stir it thoroughly. After sealing and placing for 24 hours, take the upper clear liquid as the experimental solution 13;

[0038] (3) According to the test design, take 3 to 4 prepared test panels 12, seal the edges and back of the test panels 12 with a mixture of paraffin wax and rosin (mass ratio 1:1) with a sealing width of 4 to 5 mm, and dry;

[0039] (4) Place the test box on the test bench and adjust the adjustment bolts 19 at the bottom of the test box so that the leveling bubbles 20 on both sides are centered;

[0040] (5) Remove the box cover 2, and insert the test panels 12 into the silicone sealing layer 10 inside the box in turn, making sure that the sealing layer wraps the test panels well;

[0041] (6) Adjust the length of the mounting rod 11 so that the high-definition camera 15 is 1 / 3 of the height from the bottom surface of the box 1 and 1 / 2 of the height of the test plate 12;

[0042] (7) Close the box cover 2, turn on the computer 6 and the high-definition camera 15, and take pictures of the surface of the test board 12;

[0043] (8) Open the catheter clamp 18 on the injection hole catheter 17, and inject the experimental solution 13 into the catheter through the injection device until the liquid level reaches 2 / 3 of the height of the surface of the sample, and then close the catheter clamp 18. Turn on the liquid level control alarm 7, and set the liquid level at this time as the standard liquid level;

[0044] (9) Soak the test plate 12 for a period of time as required. During this period, pay attention to whether the liquid level control alarm 7 sounds an alarm. If the liquid level of the test solution 13 drops, open the catheter clamp 18 on the injection catheter 17 and inject the test solution 13 into the box 1 through the injection device;

[0045] (10) After the immersion is completed, turn off the liquid level alarm 7, open the catheter clamp 18 on the injection hole catheter, drain the liquid, and collect the test liquid 13 in the waste liquid bucket until all the liquid in the box flows out. Open the water valve 4, use the water pipe 3 and the water outlet head 8 to introduce water to rinse the test plate 12 with water, close the water valve 4, open the box cover 2, absorb the surface of the test plate 12 with filter paper, cover the box cover 2, and photograph the surface of the test plate 2 at this time.

[0046] (11) After the test, open the box cover 2, take out the test board 12, and turn off the high-definition camera 15. Save the video and pictures on the computer 6 for comparison and analysis to see if there is any discoloration, blistering, peeling, powdering, softening, etc. on the surface of the test board 12. The test result is that the coating phenomenon of at least two test boards 12 is consistent. The coating area within 5 mm of the edge of the test board and 10 mm below the liquid surface is not evaluated.

[0047] In the utility model, a silicone sealing layer is installed on the inner wall of the box, and the test plate can be inserted into the silicone sealing layer. The paraffin rosin sealing layer on the surface of the test plate realizes the second sealing of the test plate, and the sealing is fully guaranteed, and the verticality of the test plate can be guaranteed without tilting; the use of the liquid level control alarm in the box can timely understand the change of the liquid level, so as to replenish the liquid in time, and the replenishment and discharge of the liquid are carried out through the conduit at the bottom of the box, avoiding the disturbance of the upper test plate; the use of the high-definition camera group can shoot and transmit and record the change process of the test plate surface in real time, so as to more clearly determine the change of the test plate surface through the comparison of different test sections; the use of the shower assembly can realize the test plate surface without manual movement of the test plate, save labor to ensure safety, and avoid disturbance of the test plate. The above settings improve the accuracy and effectiveness of the test. The utility model has a simple and clear structure, realizes the effective detection of the alkali resistance of architectural coatings, effectively reduces labor, avoids subjective and environmental interference, and significantly improves the accuracy and efficiency of the test.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and replacements, and these modifications and replacements are also within the scope of protection covered by the claims.

Claims

1. A device for detecting alkali resistance of architectural coatings, characterized in that: The test box comprises a test box, a liquid level control alarm (7), a camera assembly and a shower assembly. The test box comprises an open box body (1) and a box cover (2). The bottom of the box body (1) is connected to a liquid injection conduit (17), the liquid injection conduit (17) is connected to an external liquid injection device, and a conduit clamp (18) is arranged on the liquid injection conduit (17); the inner side walls of the box body (1) are all provided with a sealing layer (10), and the sealing layer (10) is used to install a test plate (12); the liquid level control alarm (7) is arranged on the outside of the box body (1), and a probe (21) of the liquid level control alarm (7) extends into the inside of the box body (1), and the probe (21) is placed on the bottom of the box body (1); The camera assembly comprises a bracket and a plurality of high-definition cameras (15), one end of the bracket is fixed to the box cover (2), and the other end is connected to the outer shell of the high-definition camera (15), and the camera end of the high-definition camera (15) faces the inner wall of the box body (1); The shower assembly comprises a water pipe (3) and a plurality of water outlet heads (8); one end of the water pipe (3) passes through the box cover (2) and is connected to an external water supply end, and the other end is connected to the water outlet head (8); the water outlet of the water outlet head (8) faces the upper side of the inner wall of the box body (1); During the experiment, a detection solution is injected into the box (1), and the test plate (12) is fixed on the side wall of the box (1) through the sealing layer (10).

2. The device for detecting alkali resistance of architectural coatings according to claim 1, characterized in that: The box body (1) and the box cover (2) are clamped together via a groove and protrusion structure.

3. The device for detecting alkali resistance of architectural coatings according to claim 1, characterized in that: The bracket comprises a mounting rod (11) and a plurality of connecting rods (14); one end of the mounting rod (11) is connected to the center of the box cover (2), and the other end is connected to the connecting rod (14); the plurality of connecting rods (14) are arranged along the circumference of the mounting rod (11), the connecting rods (14) correspond to the high-definition cameras (15) one by one, and one end of the connecting rod away from the mounting rod (11) is connected to the housing of the high-definition camera (15).

4. The device for detecting alkali resistance of architectural coatings according to claim 3, characterized in that: A mounting through hole is provided on the box cover (2), one end of the bracket passes through the mounting hole and extends out of the box cover (2), and the bracket is threadedly connected to the box cover (2).

5. The device for detecting alkali resistance of architectural coatings according to claim 3, characterized in that: The mounting rod (11) is a spiral telescopic hollow rod.

6. The device for detecting alkali resistance of architectural coatings according to claim 4, characterized in that: The high-definition camera (15) is led out of the box (1) through a wire (5) and connected to the computer (6); the wire (5) passes through the interior of the mounting rod (11) and is led out of the box (1).

7. The device for detecting alkali resistance of architectural coatings according to claim 1, characterized in that: The portion of the water conduit (3) located outside the box body (1) is provided with a water valve (4).

8. The device for detecting alkali resistance of architectural coatings according to claim 1, characterized in that: The sealing layer (10) comprises a first side portion (10-1), a bottom surface (10-3) and a second side portion (10-2); the first side portion (10-1) is parallel to and connected to the inner wall of the box body (1); one end of the bottom surface (10-3) is connected to the bottom of the first side portion (10-1) and the other end is connected to the bottom of the second side portion (10-2); the second side portion (10-2) is parallel to the first side portion (10-1); the first side portion (10-1), the bottom surface (10-3) and the second side portion (10-2) form a test plate (12) groove at the bottom of the box body (1); the bottom of the test plate (12) is located in the test plate (12) groove.

9. The device for detecting alkali resistance of architectural coatings according to claim 8, characterized in that: A sealing column (10-4) is provided between two adjacent sealing layers (10), and a limiting groove of the limiting test plate (12) is formed between the side surface of the sealing column (10-4) and the first side portion (10-1).

10. The device for detecting alkali resistance of architectural coatings according to claim 1, characterized in that: A plurality of adjustment bolts (19) are arranged on the outer bottom of the box body (1), and a level bubble (20) is arranged on the outer side wall of the box body (1).

Images