A method for testing performance of building waterproof materials

Abstract

The present invention discloses a method for testing the performance of building waterproof materials, and belongs to the field of waterproof material performance testing. A method for testing the performance of building waterproof materials, comprising the following steps: Step 1: intercepting the building waterproof material to be tested. The present invention can, through the sliding of the slide, on the one hand, inject air into the interior of the test box to increase the internal pressure of the test box, and can more accurately measure the permeability of the material under the action of water pressure, thereby ensuring the scientificity and reliability of the test results. While increasing the internal pressure of the test box, the air injected into the test box directly acts on the outer surface of the building waterproof material, thereby removing dust and other impurities on the outer surface of the building waterproof material, thereby preventing the presence of dust and other impurities from affecting the accuracy of the test. On the other hand, the knocking head can knock on the test plate, causing the test plate to vibrate, thereby eliminating the air between the penetrant and the surface of the building waterproof material, thereby further improving the accuracy of the test.

Description

Technical Field

[0001] The present invention relates to the technical field of waterproof material performance detection, and in particular to a method for detecting the performance of building waterproof materials. Background Art

[0002] The permeability test of building waterproof materials is one of the important indicators to measure the waterproof performance of materials. This testing process usually involves the following steps: Sample preparation: Obtain representative samples from material suppliers or construction sites. The samples should be of sufficient size and shape so that they can cover the test specimens of the test equipment. Test specimen preparation: According to the requirements of relevant standards (such as GB / T17657-2013 "Test methods for physical and mechanical properties of wood" or GB / T18173.1-2012 "Waterproof membrane Part 1: Asphalt waterproof membrane"), the samples are processed into standard size test specimens. Test equipment: Use experimental devices such as capillary action method, liquid penetration method, and pressure penetration method to test the permeability of materials. The equipment should meet the requirements of national or industry standards and be kept in good working condition. Test process: Place the specimen on the experimental device, and slowly penetrate the test liquid (usually water) into the material by applying a certain pressure or using capillary action. Record the penetration time and the depth or volume of liquid penetration. Result determination: According to the experimental results, determine the permeability level of the material according to relevant standards. For example, according to GB18173.1-2012 standard, the permeability of waterproof membrane is divided into 0 to 4 levels, with 0 indicating impermeability. Data processing and reporting: Process the experimental data to obtain quantitative indicators such as permeability coefficient or permeability, and write a test report. The report should include experimental conditions, equipment model, specimen size, experimental results and conclusions.

[0003] At present, when conducting permeability tests on the waterproof performance of building materials, water is generally sprayed on the building waterproof materials and left to stand for a period of time. The amount of water penetration is used to determine whether the permeability of the building waterproof materials meets the requirements. However, during the testing process, an air film is formed on the surface of the waterproof material in contact with water, which makes it impossible for water to penetrate the building waterproof material, affecting the accuracy of the performance test of the building waterproof material. Based on this, a performance test method for building waterproof materials is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that an air film is formed on the surface of the waterproof material in contact with water, which makes it impossible for water to penetrate the building waterproof material, thereby affecting the accuracy of the performance detection of the building waterproof material, and to propose a method for detecting the performance of building waterproof materials.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for testing the performance of building waterproof materials comprises the following steps:

[0007] Step 1: intercept the building waterproof material to be tested;

[0008] Step 2: Place the building waterproof material in the testing device;

[0009] Step 3: Start the detection device so that the detection device first sprays the penetrant onto the surface of the building waterproof material;

[0010] Step 4: After the penetrant dries, spray the developer and take a picture;

[0011] Step 5: Analyze whether the permeability coefficient of the building waterproof material meets the standards based on the captured images and make a rating.

[0012] In order to remove the air between the building waterproof material and the penetrant and improve the detection accuracy, preferably, the detection device includes: a detection box, a detection plate is fixedly connected to the inside of the detection box, the top of the detection plate is fixedly connected to limit rods, the building waterproof material to be detected is placed on the detection board and located between the limit rods; a knocking head is arranged at the bottom of the detection plate, the bottom of the knocking head is fixedly connected to a lifting frame, and the bottom of the lifting frame is fixedly connected to a knocking spring.

[0013] In order to clean the upper surface of the building waterproof material and prevent the presence of dust and other impurities on the upper surface of the building waterproof material from affecting the accuracy of the detection, it further includes a slide slidably connected to the detection box, the slide is rotatably connected to a hollow rotating rod, the end of the hollow rotating rod is fixedly connected to a gear, the middle position of the hollow rotating rod is fixedly connected to a wiping cotton, and the position of the hollow rotating rod fixedly connected to the wiping cotton is provided with an air jet hole, wherein the top of the lifting frame is fixedly connected to a toothed rod, the toothed rod is meshed with the gear, and the knocking spring is fixedly connected to the slide.

[0014] In order to increase the internal pressure of the detection box and blow air to the upper surface of the building waterproof material during detection, it further includes a push-pull rod slidably connected to the slide, the two ends of the push-pull rod are respectively fixedly connected with a push-pull spring and a piston plate, and the top of the push-pull rod is fixedly connected with a magnetic plate, wherein the interior of the detection box is fixedly connected with a piston cylinder, an air inlet hole is opened on the piston cylinder, an exhaust hose is fixedly connected to the top of the piston cylinder, the piston plate is slidably connected to the piston cylinder, the bottom of the lifting frame is fixedly connected with a magnetic block, the magnetism of the magnetic block is opposite to that of the magnetic plate, and the push-pull spring is fixedly connected to the slide.

[0015] Furthermore, the exhaust hose is fixedly connected to the slide, one end of the exhaust hose away from the piston cylinder is rotatably connected to the end of the hollow rotating rod, and the exhaust hose is communicated with the hollow rotating rod.

[0016] In order to stably clamp the building waterproof material and stretch the building waterproof material, it further includes a clamping cylinder fixedly connected to the top of the detection plate, the output end of the clamping cylinder is fixedly connected to the inner clamping block, the bottom of the inner clamping block is installed with a ball, and the output end of the clamping cylinder is fixedly connected to the outer clamping block.

[0017] In order to extract the air from the fitting part between the building waterproof material and the detection plate, so that the building waterproof material can be evenly fitted on the detection plate, further, it also includes a slide groove opened at the bottom of the detection plate, a reciprocating plate is slidably connected in the slide groove, a return spring is fixedly connected to the top of the reciprocating plate, the return spring is fixedly connected in the slide groove, an exhaust hole is opened on the reciprocating plate, an air extraction hole is opened at the part of the detection plate where the slide groove is opened, and a limit plate is fixedly connected to the bottom of the detection plate, and the limit plates are located on both sides of the slide groove.

[0018] In order to stretch the building waterproof material and detect the permeability of the building waterproof material in the stretched state, it further includes a rotating shaft rotatably connected to the detection box, a blade is fixedly connected to the middle of the rotating shaft, a roller is fixedly connected to the rotating shaft, and a magnetic sheet is fixedly connected to the roller, wherein a stretching plate is slidably connected to the detection plate, a magnetic strip is fixedly connected to the bottom of the stretching plate, the magnetism of the magnetic strip is the same as that of the magnetic sheet, and the blade is arranged at the bottom of the exhaust hole.

[0019] Furthermore, a box door is installed directly in front of the detection box, and a control panel is installed directly in front of the detection box.

[0020] Furthermore, the top of the detection box is fixedly connected to the first liquid tank and the second liquid tank, the bottom of the first liquid tank is fixedly connected to the first liquid pipe, the bottom of the second liquid tank is fixedly connected to the second liquid pipe, an electric screw is installed in the detection box, a slide is installed on the electric screw, a second nozzle and a first nozzle are installed at the bottom of the slide, the first liquid pipe is connected to the first nozzle, the second nozzle is connected to the second liquid pipe, a detection camera is installed at the bottom of the slide, the slide is fixedly connected to the bottom of the slide, and the electric screw, the detection camera, the first nozzle and the second nozzle are all controlled by a control panel.

[0021] Compared with the prior art, the present invention provides a method for testing the performance of building waterproof materials, which has the following beneficial effects:

[0022] 1. The building waterproof material performance testing method can, through the sliding of the slide, on the one hand, inject air into the testing box to increase the internal pressure of the testing box, and can more accurately measure the permeability of the material under the action of water pressure, thereby ensuring the scientificity and reliability of the test results. In addition, while increasing the internal pressure of the testing box, the air injected into the testing box directly acts on the outer surface of the building waterproof material, thereby removing dust and other impurities on the outer surface of the building waterproof material, thereby preventing the presence of dust and other impurities from affecting the accuracy of the test. On the other hand, the knocking head can knock on the test plate, causing the test plate to vibrate, thereby eliminating the air between the penetrant and the surface of the building waterproof material, thereby further improving the accuracy of the test.

[0023] 2. The method for testing the performance of building waterproof materials can, through the intermittent knocking of the detection plate by the knocking head, on the one hand make the wiping cotton swing back and forth to improve the cleaning efficiency of the surface of the building waterproof material, and on the other hand make the air extraction holes extract the air between the fitting parts of the building waterproof material and the detection plate, so that the building waterproof material is flatly fitted on the top of the detection plate, and prevent the existence of air between the building waterproof material and the detection plate, which causes the building waterproof material to form bulges, and causes the penetrant to be unable to evenly cover the surface of the building waterproof material, affecting the detection accuracy of the penetration performance of the building waterproof material.

[0024] 3. The method for testing the performance of building waterproof materials, through the exhaust operation of the exhaust hole, causes the rotating shaft to drive the roller to rotate, and then the stretching plate intermittently stretches the building waterproof material under the action of the magnetic strips and magnetic sheets, which can simulate a stress state that the building waterproof material may encounter in actual application, so as to evaluate its waterproof performance under the stretching state. Stretching can help to test whether the material will crack, break or deform excessively when stretched, so as to evaluate its ability to adapt to different structures and use environments. In addition, during the stretching process, it can be observed whether the material will fatigue, that is, whether the material can continue to maintain good waterproof performance under repeated stretching-compression cycles. This helps to evaluate the durability of the material during long-term use, expands the detection scope of building waterproof materials, and makes the test data more convincing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional structural schematic diagram of a method for testing the performance of building waterproof materials proposed by the present invention;

[0026] Figure 2 A partially cutaway structural schematic diagram of a front view of a method for testing the performance of a building waterproof material proposed by the present invention;

[0027] Figure 3 A method for testing the performance of building waterproof materials proposed by the present invention Figure 2The enlarged structural diagram at A in the middle;

[0028] Figure 4 A schematic diagram of a partially cutaway front three-dimensional structure of a method for testing the performance of building waterproof materials proposed by the present invention;

[0029] Figure 5 A schematic diagram of a side middle section structure of a method for testing the performance of a building waterproof material proposed by the present invention;

[0030] Figure 6 A method for testing the performance of building waterproof materials proposed by the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0031] Figure 7 A schematic diagram of a partially cutaway structure of a bottom three-dimensional structure of a method for testing the performance of a building waterproof material proposed by the present invention;

[0032] Figure 8 A method for testing the performance of building waterproof materials proposed by the present invention Figure 7 The enlarged structural diagram at C in the middle;

[0033] Fig. 9 A schematic diagram of the three-dimensional structure of a wiping cotton in a method for testing the performance of building waterproof materials proposed in the present invention.

[0034] In the figure: 1, detection box; 2, box door; 3, control panel; 4, first liquid tank; 5, second liquid tank; 6, first liquid pipe; 7, second liquid pipe; 8, slide plate; 9, second nozzle; 10, first nozzle; 11, electric screw; 12, detection camera; 13, detection plate; 14, clamping cylinder; 15, inner clamping block; 16, ball bearing; 17, outer clamping block; 18, limit rod; 19, air extraction hole; 20, slide; 21, hollow rotating rod; 22, gear; 23, wipe Wiping cotton; 24, air jet hole; 25, lifting frame; 26, magnetic block; 27, knocking spring; 28, knocking head; 29, tooth rod; 30, push-pull rod; 31, push-pull spring; 32, magnetic plate; 33, piston plate; 34, piston cylinder; 35, exhaust hose; 36, limit plate; 37, reciprocating plate; 38, exhaust hole; 39, blade; 40, rotating shaft; 41, roller; 42, magnetic sheet; 43, stretching plate; 44, magnetic strip; 45, reset spring; 46, air inlet. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Example:

[0038] Reference Figure 1-Figure 9 , a method for testing the performance of building waterproof materials, comprising the following steps:

[0039] Step 1: intercept the building waterproof material to be tested;

[0040] Step 2: Place the building waterproof material in the testing device;

[0041] Step 3: Start the detection device so that the detection device first sprays the penetrant onto the surface of the building waterproof material;

[0042] Step 4: After the penetrant dries, spray the developer and take a picture;

[0043] Step 5: Analyze whether the permeability coefficient of the building waterproof material meets the standards based on the captured images and make a rating.

[0044] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 The detection device comprises: a detection box 1, a box door 2 is installed in front of the detection box 1, a control panel 3 is installed in front of the detection box 1, a first liquid tank 4 and a second liquid tank 5 are fixedly connected to the top of the detection box 1, a first liquid pipe 6 is fixedly connected to the bottom of the first liquid tank 4, a second liquid pipe 7 is fixedly connected to the bottom of the second liquid tank 5, an electric screw 11 is installed in the detection box 1, a slide plate 8 is installed on the electric screw 11, a second nozzle 9 and a first nozzle 10 are installed at the bottom of the slide plate 8, the first liquid pipe 6 is connected to the first nozzle 10, the second nozzle 9 is connected to the second liquid pipe 7, and the bottom of the slide plate 8 is installed A detection camera 12 is installed, and a detection plate 13 is fixedly connected to the inside of the detection box 1. The top of the detection plate 13 is fixedly connected to a limit rod 18. The building waterproof material to be detected is placed on the detection plate 13 and located between the limit rods 18. It also includes a clamping cylinder 14 fixedly connected to the top of the detection plate 13. The output end of the clamping cylinder 14 is fixedly connected to an inner clamping block 15. A ball 16 is installed at the bottom of the inner clamping block 15. The output end of the clamping cylinder 14 is fixedly connected to an outer clamping block 17. The electric screw 11, the detection camera 12, the first nozzle 10 and the second nozzle 9 are all controlled by the control panel 3.

[0045] When in use, intercept the building waterproof material to be tested, then add the penetrant into the first liquid tank 4, add the developer into the second liquid tank 5, then open the box door 2 to place the building waterproof material on the top of the detection plate 13, and between the limit rods 18, then start the clamping cylinder 14 to clamp and fix the building waterproof material through the ball 16 and the outer clamping block 17, then start the electric screw 11 and the first nozzle 10, so that the slide plate 8 slides to drive the first nozzle 10 to spray the penetrant on the outer surface of the building waterproof material, after the penetrant is completely dried, start the electric screw 11 and the second nozzle 9, so that the slide plate 8 slides to drive the second nozzle 9 to spray the developer on the outer surface of the building waterproof material, and at the same time start the detection camera 12 to shoot the building waterproof material, and the captured image data is sent to the control panel 3, and the control panel 3 analyzes the captured image data to determine the permeability coefficient of the building waterproof material, and determines the permeability grade of the building waterproof material according to the permeability coefficient;

[0046] After the test is completed, the box door 2 is opened and the clamping cylinder 14 is started to remove the building waterproof material from the test box 1 and reduce the waterproof permeability grade mark.

[0047] Reference Figure 2-Figure 5 , Figure 7 , Fig. 9 , also includes a slide 20 slidably connected in the detection box 1, the slide 20 is fixedly connected to the bottom of the slide plate 8, a hollow rotating rod 21 is rotatably connected to the slide 20, the end of the hollow rotating rod 21 is fixedly connected to a gear 22, the middle position of the hollow rotating rod 21 is fixedly connected to a wiping cotton 23, and an air jet hole 24 is provided at the position where the hollow rotating rod 21 is fixedly connected to the wiping cotton 23, wherein a toothed rod 29 is fixedly connected to the top of the lifting frame 25, the toothed rod 29 is meshed with the gear 22, a knocking spring 27 is fixedly connected to the slide 20, and a knocking head 28 is arranged at the bottom of the detection plate 13, the bottom of the knocking head 28 is fixedly connected to the lifting frame 25, and the bottom of the lifting frame 25 is fixedly connected to the knocking spring 27.

[0048] During the sliding of the slide plate 8, the slide frame 20 slides, and then the wiping cotton 23 cleans the upper surface of the building waterproof material to remove dust and other impurities on the upper surface of the building waterproof material (it should be noted that when the first nozzle 10 or the second nozzle 9 is working, the wiping cotton 23 is in front of the first nozzle 10 or the second nozzle 9);

[0049] The cleanliness of building waterproof materials is ensured, and impurities such as dust are prevented from being present on the building waterproof materials, which may block the contact between the building waterproof materials and the penetrant when the penetrant is sprayed, thereby affecting the accuracy of the performance test of the building waterproof materials.

[0050] Reference Figure 2-Figure 5 , Figure 7 , also includes a push-pull rod 30 slidably connected in the slide 20, the two ends of the push-pull rod 30 are respectively fixedly connected with a push-pull spring 31 and a piston plate 33, and the top of the push-pull rod 30 is fixedly connected with a magnetic plate 32, wherein a piston cylinder 34 is fixedly connected to the inside of the detection box 1, an air inlet 46 is opened on the piston cylinder 34, an exhaust hose 35 is fixedly connected to the top of the piston cylinder 34, the piston plate 33 is slidably connected to the piston cylinder 34, and a magnetic block 26 is fixedly connected to the bottom of the lifting frame 25, the magnetism of the magnetic block 26 is opposite to that of the magnetic plate 32, the push-pull spring 31 is fixedly connected to the slide 20, the exhaust hose 35 is fixedly connected to the slide 20, and the end of the exhaust hose 35 away from the piston cylinder 34 is rotatably connected to the end of the hollow rotating rod 21, and the exhaust hose 35 is connected to the hollow rotating rod 21.

[0051] When the slide 20 slides to the right, the push-pull rod 30 slides inside the slide 20 relative to the slide 20, so that the magnetic block 26 intermittently contacts the magnetic plate 32, and then the lifting frame 25 slides up and down under the magnetic force of the magnetic block 26 and the magnetic plate 32 and the elastic force of the knocking spring 27, so that the knocking head 28 knocks the bottom of the detection plate 13, causing the detection plate 13 to shake, and in this process, the gear 22 rotates back and forth under the action of the tooth rod 29, causing the wiping cotton 23 to swing, thereby improving the surface of the building waterproof material. The cleaning efficiency of the surface is improved. When the push-pull rod 30 slides relative to the slide 20, the push-pull rod 30 pushes the piston plate 33 to slide into the piston cylinder 34 under the action of the push-pull spring 31, compresses the air inside the piston cylinder 34 into the exhaust hose 35, and then enters the hollow rotating rod 21, and acts on the upper surface of the building waterproof material through the wiping cotton 23 through the air jet hole 24. When the slide 20 slides to the left, the piston plate 33 slides out of the piston cylinder 34, so that the piston cylinder 34 draws air into the piston cylinder 34 through the air inlet hole 46;

[0052] On the one hand, air can be injected into the detection box 1 to increase the internal pressure of the detection box 1, and the permeability of the material under the water pressure can be measured more accurately, ensuring the scientificity and reliability of the test results. While increasing the internal pressure of the detection box 1, the air injected into the detection box 1 directly acts on the outer surface of the building waterproof material, which can remove dust and other impurities on the outer surface of the building waterproof material, and prevent the presence of dust and other impurities from affecting the accuracy of the detection. On the other hand, the knocking head 28 can knock the detection plate 13, so that the detection plate 13 vibrates, eliminating the air between the penetrant and the surface of the building waterproof material, thereby further improving the accuracy of the detection.

[0053] When spraying the developer, the knocking head 28 will also knock the bottom of the detection plate 13, causing the detection plate 13 to shake, and at the same time the wiping cotton 23 will swing, so that the wiping cotton 23 can absorb excess penetrant from the surface of the building waterproof material, thereby improving the detection accuracy of the permeability of the building waterproof material.

[0054] Reference Figure 2 , Figure 4-Figure 8 , also includes a slide groove opened at the bottom of the detection plate 13, a reciprocating plate 37 is slidably connected in the slide groove, a reset spring 45 is fixedly connected to the top of the reciprocating plate 37, the reset spring 45 is fixedly connected in the slide groove, an exhaust hole 38 is opened on the reciprocating plate 37, and an exhaust hole 19 is opened at the position where the slide groove is opened on the detection plate 13, a limit plate 36 is fixedly connected to the bottom of the detection plate 13, and the limit plate 36 is located on both sides of the slide groove, and also includes a rotating shaft 40 rotatably connected to the detection box 1, a blade 39 is fixedly connected to the middle of the rotating shaft 40, a roller 41 is fixedly connected to the rotating shaft 40, and a magnetic sheet 42 is fixedly connected to the roller 41, wherein a stretching plate 43 is slidably connected to the detection plate 13, a magnetic strip 44 is fixedly connected to the bottom of the stretching plate 43, the magnetism of the magnetic strip 44 is the same as that of the magnetic sheet 42, and the blade 39 is arranged at the bottom of the exhaust hole 38.

[0055] As the slide 20 gradually slides to the right, the striking head 28 hits the reciprocating plate 37, so that the reciprocating plate 37 slides up and down along the inner surface of the slide groove under the action of the striking head 28 and the return spring 45, and the air between the fitting part of the building waterproof material and the detection plate 13 is sucked into the slide groove through the exhaust hole 19, and blown to the blade 39 through the exhaust hole 38, so that the blade 39 drives the rotating shaft 40 to rotate, and the rotation of the rotating shaft 40 causes the roller 41 to rotate, so that the magnetic sheet 42 intermittently contacts the magnetic strip 44, and then the stretching plate 43 intermittently stretches the building waterproof material under the action of the magnetic sheet 42 and the magnetic strip 44. In the process of the building waterproof material being stretched, the ball 16 rolls, so that the building waterproof material can be reciprocated.

[0056] The exhaust hole 19 can extract the air between the fitting parts of the building waterproof material and the detection plate 13, so that the building waterproof material can be flatly fitted on the top of the detection plate 13, and the presence of air between the building waterproof material and the detection plate 13, which will cause the building waterproof material to form bulges, resulting in the inability of the penetrant to evenly cover the surface of the building waterproof material, affecting the detection accuracy of the permeability performance of the building waterproof material. It can simulate a stress state that the building waterproof material may encounter in actual application, so as to evaluate its waterproof performance under tension. Stretching can help test whether the material will crack, break or deform excessively when stretched, so as to evaluate its ability to adapt to different structures and use environments. In addition, during the stretching process, it can be observed whether the material will fatigue, that is, whether the material can continue to maintain good waterproof performance under repeated stretching-compression cycles. This helps to evaluate the durability of the material during long-term use, expands the detection range of building waterproof materials, and makes the data obtained from the test more convincing.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for testing the performance of building waterproof materials, characterized in that: The detection is carried out using a detection device, the detection device comprising: a detection box (1), a control panel (3) installed in front of the detection box (1), a first liquid tank (4) and a second liquid tank (5) fixedly connected to the top of the detection box (1), a first liquid pipe (6) fixedly connected to the bottom of the first liquid tank (4), a second liquid pipe (7) fixedly connected to the bottom of the second liquid tank (5), an electric screw (11) installed in the detection box (1), a slide plate (8) installed on the electric screw (11), and a second nozzle (9) and a first nozzle (10) installed at the bottom of the slide plate (8). The first liquid pipe (6) is connected to the first nozzle (10), the second nozzle (9) is connected to the second liquid pipe (7), a detection camera (12) is installed at the bottom of the slide plate (8), a detection plate (13) is fixedly connected to the inside of the detection box (1), the top of the detection plate (13) is fixedly connected to the limit rod (18), the building waterproof material to be detected is placed on the detection plate (13) and is located between the limit rods (18), and also includes a clamping cylinder (14) fixedly connected to the top of the detection plate (13), the output end of the clamping cylinder (14) is fixedly connected to the inner clamping block (1 5), a ball bearing (16) is installed at the bottom of the inner clamping block (15), the output end of the clamping cylinder (14) is fixedly connected to the outer clamping block (17), the electric screw (11), the detection camera (12), the first nozzle (10) and the second nozzle (9) are all controlled by the control panel (3); it also includes a slide (20) slidably connected to the detection box (1), the slide (20) is fixedly connected to the bottom of the slide plate (8), the slide (20) is rotatably connected to a hollow rotating rod (21), the end of the hollow rotating rod (21) is fixedly connected to a gear (22), and the hollow rotating rod A wiping cotton (23) is fixedly connected to the middle position of the hollow rotating rod (21), and an air injection hole (24) is opened at the position where the wiping cotton (23) is fixedly connected to the hollow rotating rod (21). The hollow rotating rod (21) also includes a knocking head (28) arranged at the bottom of the detection plate (13), and the bottom of the knocking head (28) is fixedly connected to a lifting frame (25), and the bottom of the lifting frame (25) is fixedly connected to a knocking spring (27), and the top of the lifting frame (25) is fixedly connected to a tooth rod (29), and the tooth rod (29) is meshed with the gear (22), and the knocking spring (27) is fixedly connected to the slide (20);The detection box (1) further comprises a push-pull rod (30) slidably connected to the slide frame (20), the two ends of the push-pull rod (30) being fixedly connected to a push-pull spring (31) and a piston plate (33), the top of the push-pull rod (30) being fixedly connected to a magnetic plate (32), the interior of the detection box (1) being fixedly connected to a piston cylinder (34), the piston cylinder (34) being provided with an air inlet hole (46), the top of the piston cylinder (34) being fixedly connected to an exhaust hose (35), the piston plate (33) being slidably connected to the piston cylinder (34), and the piston plate (33) being fixedly connected to the piston cylinder (34). The bottom of the lifting frame (25) is fixedly connected with a magnetic block (26), the magnetism of the magnetic block (26) is opposite to the magnetism of the magnetic plate (32), and the push-pull spring (31) is fixedly connected to the slide (20); the exhaust hose (35) is fixedly connected to the slide (20), and the end of the exhaust hose (35) away from the piston cylinder (34) is rotatably connected to the end of the hollow rotating rod (21), and the exhaust hose (35) is connected to the hollow rotating rod (21); and the detection plate (13) is also provided at the bottom A slide groove is provided at the bottom of the detection plate (13), a reciprocating plate (37) is slidably connected in the slide groove, a return spring (45) is fixedly connected to the top of the reciprocating plate (37), the return spring (45) is fixedly connected in the slide groove, an exhaust hole (38) is provided on the reciprocating plate (37), a suction hole (19) is provided at the position where the slide groove is provided on the detection plate (13), a limit plate (36) is fixedly connected to the bottom of the detection plate (13), and the limit plates (36) are located on both sides of the slide groove; and further comprising a rotationally connected detection box (1) A rotating shaft (40) is provided, a blade (39) is fixedly connected to the middle of the rotating shaft (40), a roller (41) is fixedly connected to the rotating shaft (40), and a magnetic sheet (42) is fixedly connected to the roller (41); a stretching plate (43) is slidably connected to the detection plate (13), a magnetic strip (44) is fixedly connected to the bottom of the stretching plate (43), the magnetic properties of the magnetic strip (44) are the same as those of the magnetic sheet (42), and the blade (39) is arranged at the bottom of the exhaust hole (38); comprising the following steps: Step 1: intercept the building waterproof material to be tested; Step 2: Place the building waterproof material in the testing device; Step 3: Start the detection device so that the detection device first sprays the penetrant onto the surface of the building waterproof material; Step 4: After the penetrant dries, spray the developer and take a picture; Step 5: Analyze whether the permeability coefficient of the building waterproof material meets the standards based on the captured images and make a rating.

2. A method for testing the performance of building waterproof materials according to claim 1, characterized in that: A box door (2) is installed directly in front of the detection box (1).

Images