Device and method for detecting quality of waterproof layer of roof coiled material by air inflation method

Abstract

The invention relates to the technical field of waterproof detection of coiled materials, in particular to a device and method for detecting the quality of a roof coiled material waterproof layer through an inflation method, the lower side of a waterproof coiled material is in an interference airtight state, the outer side of the bottom end of a water chamber is fixedly connected with a flange for improving water tightness, the water chamber can press the waterproof coiled material downwards, and the bottom end of the water chamber is sealed; the inner side surface of the water chamber is smooth, weak gas leaked from the waterproof coiled material can be collected in the detection process through an inflation method, the collected gas can be concentrated in the arc-shaped part of the collection chamber, and due to the fact that the left side and the right side of the collection chamber are of lever structures, the number and the size of leakage points in different areas on the waterproof coiled material are completely random; under the condition, leaked gas introduced from the left side and the right side of the collecting chamber has randomness and cannot be completely consistent, finally the left side and the right side of the collecting chamber are unbalanced, and weak leakage points are detected by observing the inclination state of the collecting chamber.

Description

Technical Field

[0001] The invention relates to the technical field of coiled material waterproofing detection, in particular to a device and method for detecting the quality of a roofing coiled material waterproofing layer by an inflation method. Background Art

[0002] Roof leakage is a common quality problem. It seriously affects the use function of building, reduces the durability of structural components and poses a threat to the service life of the structure.

[0003] It is very necessary to test the water seepage quality of waterproof roll materials before or after construction. For the quality test of waterproof roll materials, the existing detection method is to seal the upper and lower sides of the detection area of ​​the waterproof roll materials, inflate the bottom end, and store water at the upper end. When the gas passes through the waterproof roll materials, bubbles will appear in the water storage layer. At this time, there is water seepage in the detection area of ​​the surface waterproof roll materials. For example, the method of testing the quality of the waterproof layer of the roofing roll materials by the inflation method with application number 201010283224.X performs waterproof testing after the construction is completed by pre-buried inflation connection conduits; However, in the above method, when the amount of water seepage is very small, that is, the amount of bubble rise is very weak, it is difficult to effectively identify it with the naked eye and instruments, and the number and size of leakage points in different areas on the waterproof membrane are completely random and difficult to be consistent. The present invention utilizes this feature to collect the bubbles generated by leakage points in different positions of the waterproof membrane, and compare them to achieve effective and more accurate detection.

[0004] Therefore, in order to solve the above problems, a device and method for detecting the quality of roofing membrane waterproofing layer by inflation method are proposed. Summary of the invention

[0005] The object of the present invention is to provide a device and method for detecting the quality of roofing membrane waterproofing layer by inflation method, so as to solve the problem raised in the above-mentioned background technology that when the inflation method is used to detect the quality of waterproof membrane, when the amount of water seepage is very small, that is, when the amount of bubble rise is very weak, it is difficult to effectively identify it by naked eyes and instruments.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an inflation method for detecting the quality of the waterproof layer of a roofing roll material, comprising a water chamber located on the upper side, the lower side of the waterproof roll material is in an interference airtight state, a flange for increasing watertightness is fixedly connected to the outer side of the bottom end of the water chamber, the water chamber can press the waterproof roll material downward to achieve the bottom end sealing of the water chamber, and the inner surface of the water chamber is smooth; The front and rear sides of the water chamber are fixedly connected with a number of guide plates continuously distributed left and right through connecting columns. The cross-section of the guide plates is two symmetrical triangles. The guide plates are hollow inside. The guide plates are gradually inclined upward from the edge of the water chamber to the middle, and are used to guide the leaked gas to the middle position. The middle position of the guide plates is lower than the height of the left and right positions, and is used to achieve the flushness of the guide plates with the edges of the collecting chamber. The middle top of the guide plates is fixedly connected with a bearing, and the middle position of the water chamber is fixedly connected with a collecting chamber. The collecting chambers are also symmetrically arranged on the left and right. The number and position of the collecting chambers match the guide plates. The middle of the collecting chamber rotates in the bearing through a rotating shaft, and the left and right sides of the collecting chamber form a lever structure. The density of the collecting chamber is less than the density of the water sample in the water chamber, and is used to achieve a balanced state in the initial state of the collecting chamber. The left and right sides of the collecting chamber are provided with inclined parts, which are used to guide the leaked gas to the arc-shaped part, so that the left and right sides of the collecting chamber are higher than the middle position. The top ends of the left and right sides of the collecting chamber are provided with arc-shaped parts, and the inner sides of the top ends of the arc-shaped parts are spirally connected with spiral caps; When a leak occurs in the waterproof membrane, the excess gas on the lower side of the waterproof membrane will pass through the leak and enter the water chamber. The leaked gas continues to rise and is guided by the guide plate into the collecting chamber, and then guided into the arc-shaped portion by the collecting chamber for collection. The original water sample in the arc-shaped portion is discharged, and the leaked gas introduced on the left and right sides of the collecting chamber cannot be completely consistent, which ultimately causes an imbalance on the left and right sides of the collecting chamber, thereby realizing the detection of weak leaks.

[0007] Under the above setting, the present invention can collect the weak gas leaked from the waterproof coiled material during the detection by the inflation method, and the collected gas will be concentrated in the arc-shaped part of the collection chamber. Because the left and right sides of the collection chamber are lever structures, the number and size of leakage points in different areas on the waterproof coiled material are completely random and difficult to be consistent. In this case, the leaked gas introduced on the left and right sides of the collection chamber is also random and cannot be completely consistent, which eventually causes the left and right sides of the collection chamber to be unbalanced. By observing the tilt state of the collection chamber, the detection of weak leakage points is achieved. This detection method can increase the sensitivity to weak gas leakage and ensure the effectiveness of the detection. The arc-shaped part is located at the far end of the rotation center of the collection chamber. In this case, when there is gas in the arc-shaped part, there is a rising force F at the arc-shaped part. Compared with the vicinity of the rotation center, the arc-shaped part will also have a longer force arm L1, thereby further increasing the sensitivity of the rotation of the collection chamber and facilitating observation. As a preferred device for detecting the quality of roofing membrane waterproofing layer by inflation method of the present invention, the device includes a fixing frame, the top end of the fixing frame is fixedly connected to a supporting plate, the bottom end of the supporting plate is fixedly connected to a hydraulic rod, the bottom output end of the hydraulic rod is fixedly connected to the upper flange, and the downward pressure action of the water chamber is realized by the downward movement of the movable end of the hydraulic rod.

[0008] Under the above arrangement, in the present invention, the downward pressing action of the water chamber is achieved by the downward movement of the movable end of the hydraulic rod; As a device for detecting the quality of the roofing membrane waterproofing layer by the inflation method of the present invention, preferably, two adjacent collecting chambers are slidably connected to achieve continuous detection of the waterproof membrane detection area to avoid detection blind areas.

[0009] The tops of the left and right sides of the collecting chamber are provided with arc-shaped parts, and the two adjacent collecting chambers are slidably connected, so that the two adjacent collecting chambers will not get stuck with each other during the tilting and rotating process, and can be used to ensure the continuity of detection; As a device for detecting the quality of the roofing membrane waterproofing layer by the inflation method of the present invention, preferably, a tilt sensor is fixedly connected to the top of the middle position of the collecting chamber, and the tilt of the collecting chamber can be judged more accurately by reading the value of the tilt sensor.

[0010] As a preferred device for detecting the quality of roofing membrane waterproofing layer by inflation method of the present invention, the bottom end of the water chamber is connected with an inlet and outlet pipe with a valve. When water flows into the inlet and outlet pipes, the water level in the water chamber is kept 5 cm higher than the top of the collecting chamber. The upper surface of the guide plate is fixedly connected with a vibration motor.

[0011] Under the above setting, the water level in the water chamber is about 5 cm higher than the top of the collection chamber, which serves as a limit to prevent the arc-shaped part at the top of the collection chamber from emerging from the water surface when there is gas inside the collection chamber and tilting, thereby reducing the buoyancy and preventing the collection chamber from tilting excessively. As a preferred device for detecting the quality of the roofing membrane waterproofing layer by the inflation method of the present invention, the device is also provided with an air chamber, and the air chamber and the water chamber correspond to each other up and down. A flange is also provided on the outer side of the top of the air chamber, and the waterproof membrane is located between the air chamber and the water chamber. When the water chamber is pressed downward, the top of the air chamber can be sealed.

[0012] As a preferred device for detecting the quality of the roofing membrane waterproofing layer by the inflation method of the present invention, one side of the air chamber is connected to an air compressor, and the air compressor is used to achieve the interference of the air chamber. A slide plate is slidably connected to the inner side of the bottom end of the air chamber, and the top of the slide plate is fixedly connected to a connecting frame. The top of the connecting frame is rotatably connected to a plurality of equidistantly arranged support rollers, and the front and rear widths of the support rollers are consistent with the front and rear widths of the waterproof membrane, and the support rollers can support the waterproof membrane.

[0013] As a preferred device for detecting the quality of roofing membrane waterproofing layer by inflation method of the present invention, a motor is fixedly connected to one side of the air chamber, a screw is fixedly connected to the end of the main shaft of the motor, the outer side of the screw is spirally connected to the inner side of the slide plate, the left end of the screw is rotationally connected to the inner side of the left end of the water chamber, and the reciprocating movement of the rotating slide plate is realized by the reciprocating rotation of the motor.

[0014] Under the above setting, the set support roller can support the waterproof membrane, and the support roller can move back and forth under the action of the reciprocating rotation of the motor, thereby changing the contact position between the support roller and the bottom end of the waterproof membrane, preventing the support roller from clogging the leakage of the waterproof membrane. The reciprocating movement of the support roller can also be performed in step one, which is used to shake out the bubbles that may float on the surface of the waterproof membrane.

[0015] A method for testing the quality of a roofing waterproofing layer by an inflation method, the steps of which are: Step 1: Add a water sample that is not easy to foam into the water chamber through the inlet and outlet pipes. The water sample is water with a defoaming agent added. The bubbles on the inner surface of the guide plate are vibrated by the vibration motor. The spiral cap is opened to exhaust the gas in the collection chamber so that the collection chamber is completely immersed in water, and the spiral cap is closed again; Step 2: injecting gas into the air chamber through an air compressor to gradually increase the pressure of the air chamber until it is greater than the water pressure at the bottom of the water chamber in step 1; Step 3: When a leak occurs in the waterproof membrane, the excess gas on the lower side of the waterproof membrane will pass through the leak and enter the water chamber. The leaked gas continues to rise and is guided by the guide plate into the collecting chamber, and then guided into the arc-shaped portion by the collecting chamber for collection. The original water sample in the arc-shaped portion is discharged. Due to the randomness of the size and position of the leak, the leaked gas introduced on the left and right sides of the collecting chamber cannot be completely consistent, which eventually causes an imbalance and tilt on the left and right sides of the collecting chamber, thereby realizing the detection of weak leaks.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. A device for detecting the quality of the waterproof layer of the roofing roll material by an inflation method, a collecting chamber is fixedly connected to the middle position of the water chamber, and the collecting chambers are also symmetrically arranged on the left and right. The number and position of the collecting chambers match the guide plate, and the middle of the collecting chamber rotates in the bearing through a rotating shaft. The left and right sides of the collecting chamber form a lever structure, and the density of the collecting chamber is less than the density of the water sample in the water chamber. The left and right sides of the collecting chamber are provided with inclined parts, and the inclined parts are used to guide the leaked gas to the arc-shaped part, so that the positions of the left and right sides of the collecting chamber are higher than the middle position. The top ends of the left and right sides of the collecting chamber are provided with arc-shaped parts, and the inner side of the top end of the arc-shaped part is spirally connected with a spiral cap. When a leakage point occurs in the waterproof roll material, the excess gas on the lower side of the waterproof roll material will pass through the leakage point and enter the water chamber, and the leaked gas continues to rise and is guided into the collecting chamber by the guide plate, and is guided into the arc-shaped part by the collecting chamber for collection, and the original water sample in the arc-shaped part is discharged. The leaked gas introduced on the left and right sides of the collecting chamber cannot be completely consistent, which eventually makes the left and right sides of the collecting chamber unbalanced, thereby realizing the detection of weak leakage points.

[0017] 2. A device for detecting the quality of the waterproof layer of a roofing roll material by an inflation method. The present invention can collect the weak gas leaked from the waterproof roll material during the detection process by the inflation method. The collected gas will be concentrated in the arc-shaped portion of the collection chamber. Because the left and right sides of the collection chamber are lever structures, the number and size of leakage points in different areas on the waterproof roll material are completely random and difficult to be consistent. In this case, the leaked gas introduced on the left and right sides of the collection chamber is also random and cannot be completely consistent, which ultimately causes an imbalance on the left and right sides of the collection chamber. By observing the tilt state of the collection chamber, the detection of weak leakage points is achieved. This detection method can increase the sensitivity to weak gas leaks and ensure the effectiveness of the detection. The arc-shaped portion is located at the far end of the rotation center of the collection chamber. In this case, when there is gas in the arc-shaped portion, there is a rising force F at the arc-shaped portion. Compared with the vicinity of the rotation center, the arc-shaped portion will also have a longer force arm L1, thereby further increasing the sensitivity of the rotation of the collection chamber and facilitating observation.

[0018] 3. In the device for detecting the quality of the roofing membrane waterproofing layer by the inflation method, arc-shaped parts are arranged on the top of the left and right sides of the collecting chamber, and the two adjacent collecting chambers are slidably connected, so that the two adjacent collecting chambers will not get stuck with each other during the tilting and rotating process, and can be used to ensure the continuity of the detection.

[0019] 4. This device uses an inflation method to detect the quality of the roofing membrane waterproofing layer. The water level in the water chamber is about 5 cm higher than the top of the collecting chamber. It is used to limit the position to prevent the arc-shaped part at the top of the collecting chamber from emerging from the water surface when there is gas inside the collecting chamber and tilting, thereby reducing the buoyancy and preventing the collecting chamber from excessively tilting.

[0020] 5. This device for detecting the quality of the roofing membrane waterproofing layer by the inflation method has a support roller that can support the waterproof membrane. The support roller can move back and forth under the action of the reciprocating rotation of the motor, thereby changing the contact position between the support roller and the bottom end of the waterproof membrane, preventing the support roller from clogging the leakage of the waterproof membrane. The reciprocating movement of the support roller can also be used to shake out the bubbles that may float on the surface of the waterproof membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the structure at B; Figure 3 This is a schematic diagram of the appearance structure of the water chamber of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure of the water chamber in the AA' direction; Figure 5This is a schematic diagram of the appearance structure of the collecting chamber of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the installation structure at C in the figure; Figure 7 It is a schematic cross-sectional structure diagram of the collecting chamber of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at D.

[0022] In the figure: 1. air chamber; 2. water chamber; 3. waterproof membrane; 4. flange; 5. support plate; 6. hydraulic rod; 7. air compressor; 8. connecting frame; 9. screw; 10. slide plate; 11. motor; 12. fixed frame; 13. support roller; 14. guide plate; 15. collecting chamber; 151. arc-shaped part; 152. inclined part; 16. tilt sensor; 17. bearing; 18. water inlet and outlet pipes; 19. connecting column; 20. vibration motor; 21. spiral vent; 22. leaked gas. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1, please refer to Figure 3-8 The present invention provides a technical solution suitable for the detection of the waterproofing coiled material 3 that has been constructed, and the inflation is realized by the inflation connection conduit pre-buried on the lower side of the waterproofing coiled material 3: an inflation method for detecting the quality of the waterproof layer of the roofing coiled material, comprising a water chamber 2 located on the upper side, the lower side of the waterproofing coiled material 3 is in an interference airtight state, the outer side of the bottom end of the water chamber 2 is fixedly connected with a flange 4 for increasing water tightness, the water chamber 2 can press the waterproofing coiled material 3 downward to achieve the bottom end sealing of the water chamber 2, and the inner surface of the water chamber 2 is smooth; The front and rear sides of the water chamber 2 are fixedly connected with a number of guide plates 14 continuously distributed left and right through connecting columns 19. The cross-section of the guide plates 14 is two symmetrical triangles. The guide plates 14 are hollow inside. The guide plates 14 gradually tilt upward from the edge of the water chamber 2 to the middle, and are used to guide the leaked gas 22 to the middle position. The middle position of the guide plates 14 is lower than the height of the left and right positions, and is used to achieve the flushness of the edges of the guide plates 14 and the collecting chamber 15. The middle top of the guide plates 14 is fixedly connected with a bearing 17, and the middle position of the water chamber 2 is fixedly connected with the collecting chamber 15. The collecting chamber 15 is also symmetrically arranged on the left and right. The number and position of the collecting chamber 15 match the guide plates 14. The middle of the collecting chamber 15 rotates in the bearing 17 through a rotating shaft. The left and right sides of the collecting chamber 15 form a lever structure. The density of the collecting chamber 15 is less than the density of the water sample in the water chamber 2, and is used to achieve the equilibrium state of the collecting chamber 15 in the initial state of collection. The left and right sides of the collecting chamber 15 are provided with inclined portions 152, which are used to guide the leaked gas 22 to the arc-shaped portion 151, so that the left and right sides of the collecting chamber 15 are higher than the middle position. The top ends of the left and right sides of the collecting chamber 15 are provided with arc-shaped portions 151, and the inner side of the top end of the arc-shaped portion 151 is spirally connected with a spiral cap 21; When a leak occurs in the waterproof membrane 3, the excess gas on the lower side of the waterproof membrane 3 will pass through the leak and enter the water chamber 2. The leaked gas 22 continues to rise and is guided by the guide plate 14 into the collecting chamber 15, and is guided by the collecting chamber 15 into the arc-shaped portion 151 for collection. The original water sample in the arc-shaped portion 151 is discharged, and the leaked gas 22 introduced on the left and right sides of the collecting chamber 15 cannot be completely consistent, which ultimately causes an imbalance on the left and right sides of the collecting chamber 15, thereby realizing the detection of weak leaks.

[0025] Under the above setting, the present invention can collect the weak gas leaked from the waterproof coiled material 3 during the detection by the inflation method, and the collected gas will be concentrated in the arc-shaped portion 151 of the collection chamber 15. Because the left and right sides of the collection chamber 15 are lever structures, the number and size of leakage points in different areas on the waterproof coiled material 3 are completely random and difficult to be consistent. In this case, the leaked gas 22 introduced on the left and right sides of the collection chamber 15 is also random and cannot be completely consistent, which ultimately causes an imbalance on the left and right sides of the collection chamber 15. By observing the tilt state of the collection chamber 15, the detection of weak leakage points can be achieved. This detection method can increase the sensitivity to weak gas leakage and ensure the effectiveness of detection. Figure 7 As shown, the arc-shaped portion 151 is located at the far end of the rotation center of the collection chamber 15. In this case, when there is gas in the arc-shaped portion 151, there is a rising force F at the arc-shaped portion 151. Compared with the vicinity of the rotation center, the arc-shaped portion 151 also has a longer force arm L1, thereby further increasing the sensitivity of the collection chamber 15 to rotate, which facilitates observation. Specifically, the device includes a fixed frame 12, the top end of the fixed frame 12 is fixedly connected to a support plate 5, the bottom end of the support plate 5 is fixedly connected to a hydraulic rod 6, the bottom output end of the hydraulic rod 6 is fixedly connected to the upper flange 4, and the downward movement of the movable end of the hydraulic rod 6 realizes the downward pressure action of the water chamber 2.

[0026] Under the above arrangement, in the present invention, the downward pressing action of the water chamber 2 is achieved by the downward movement of the movable end of the hydraulic rod 6; Specifically, two adjacent collecting chambers 15 are slidably connected to achieve continuous detection of the detection area of ​​the waterproof coiled material 3 to avoid detection blind areas.

[0027] The tops of the left and right sides of the collecting chamber 15 are provided with arc-shaped parts 151, and the two adjacent collecting chambers 15 are slidably connected, so that the two adjacent collecting chambers 15 will not get stuck to each other during the tilting and rotating process, and can be used to ensure the continuity of detection; Specifically, a tilt sensor 16 is fixedly connected to the top of the middle position of the collection chamber 15 , and the tilt of the collection chamber 15 can be judged more accurately by reading the value of the tilt sensor 16 .

[0028] Specifically, the bottom end of the water chamber 2 is connected to an inlet and outlet water pipe 18 with a valve. When water flows into the inlet and outlet water pipe 18, the water level in the water chamber 2 is kept 5 cm higher than the top of the collection chamber 15. A vibration motor 20 is fixedly connected to the upper surface of the guide plate 14.

[0029] Under the above setting, the water level in the water chamber 2 is about 5 cm higher than the top of the collecting chamber 15, which serves as a limit to prevent the arc-shaped portion 151 at the top of the collecting chamber 15 from emerging from the water surface when there is gas inside the collecting chamber 15 and tilting, thereby reducing the buoyancy and preventing the collecting chamber 15 from excessively tilting.

[0030] Example 2: This example is a further improvement of Example 1 and is applicable to the detection of the waterproof membrane 3 in construction. Please refer to Figure 1-8 The device is also provided with an air chamber 1, which corresponds to the water chamber 2 up and down. A flange 4 is also provided on the outer side of the top of the air chamber 1. The waterproof membrane 3 is located between the air chamber 1 and the water chamber 2. When the water chamber 2 is pressed down, the top of the air chamber 1 can be sealed.

[0031] Specifically, one side of the air chamber 1 is connected to an air compressor 7, and the interference fit of the air chamber 1 is achieved through the air compressor 7. A slide plate 10 is slidably connected to the inner side of the bottom end of the air chamber 1, and a connecting frame 8 is fixedly connected to the top of the slide plate 10. A plurality of equidistantly arranged support rollers 13 are rotatably connected to the top of the connecting frame 8, and the front and rear widths of the support rollers 13 are consistent with the front and rear widths of the waterproof membrane 3, so that the support rollers 13 can support the waterproof membrane 3.

[0032] Specifically, a motor 11 is fixedly connected to one side of the air chamber 1, a screw 9 is fixedly connected to the end of the main shaft of the motor 11, the outer side of the screw 9 is spirally connected to the inner side of the slide plate 10, and the left end of the screw 9 is rotationally connected to the inner side of the left end of the water chamber 2, and the reciprocating rotation of the motor 11 realizes the reciprocating movement of the rotating slide plate 10.

[0033] Under the above setting, the support roller 13 is able to support the waterproof membrane 3. The support roller 13 can move back and forth under the action of the reciprocating rotation of the motor 11, thereby changing the contact position between the support roller 13 and the bottom end of the waterproof membrane 3, preventing the support roller 13 from clogging the leakage of the waterproof membrane 3. The reciprocating movement of the support roller 13 can also be performed in step one, so as to shake out the bubbles that may float on the surface of the waterproof membrane 3.

[0034] The present invention also discloses a method for detecting the quality of a roofing roll waterproofing layer by an inflation method, the steps of which are: Step 1: Add a water sample that is not easy to foam into the water chamber 2 through the water inlet and outlet pipes 18. The water sample is water with a defoaming agent added thereto. The bubbles on the inner surface of the guide plate 14 are vibrated by the vibration motor 20. The spiral vent 21 is opened to exhaust the gas in the collection chamber 15 so that the collection chamber 15 is completely immersed in water. The spiral vent 21 is closed again. Step 2: Inject gas into the air chamber 1 through the air compressor 7 to gradually increase the pressure of the air chamber 1 until it is greater than the water pressure at the bottom of the water chamber 2 in step 1; Step three: When a leak occurs in the waterproof membrane 3, the excess gas on the lower side of the waterproof membrane 3 will pass through the leak and enter the water chamber 2. The leaked gas 22 continues to rise and is guided by the guide plate 14 into the collecting chamber 15, and is guided by the collecting chamber 15 into the arc-shaped portion 151 for collection. The original water sample in the arc-shaped portion 151 is discharged. Due to the randomness of the size and position of the leak, the leaked gas 22 introduced on the left and right sides of the collecting chamber 15 cannot be completely consistent, which eventually causes the left and right sides of the collecting chamber 15 to become unbalanced and tilted, thereby realizing the detection of weak leaks.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the quality of a waterproof layer of a roofing roll material by an inflation method, comprising a water chamber (2) located on the upper side, characterized in that: The lower side of the waterproofing coiled material (3) is in an interference fit airtight state, and a flange (4) for increasing watertightness is fixedly connected to the outer side of the bottom end of the water chamber (2). The water chamber (2) can press the waterproofing coiled material (3) downward to achieve sealing of the bottom end of the water chamber (2), and the inner surface of the water chamber (2) is smooth; A plurality of guide plates (14) continuously distributed on the left and right are fixedly connected to the front and rear sides of the water chamber (2) via connecting columns (19). The cross-section of the guide plates (14) is two symmetrical triangles. The guide plates (14) are hollow inside. The guide plates (14) gradually tilt upward from the edge to the middle of the water chamber (2). The middle position of the guide plates (14) is lower than the height of the left and right positions. The middle top of the guide plates (14) is fixedly connected to a bearing (17). The middle position of the water chamber (2) is fixedly connected to a collecting chamber (15). The collecting chamber (15) is also symmetrically arranged on the left and right sides. The number and position of the collecting chambers (15) match those of the guide plates (14). The middle of the collecting chamber (15) rotates in the bearing (17) via a rotating shaft. The left and right sides of the collecting chamber (15) form a lever structure. The density of the collecting chamber (15) is less than the density of the water sample in the water chamber (2). The left and right sides of the collecting chamber (15) are provided with inclined portions (152), so that the positions of the left and right sides of the collecting chamber (15) are higher than the middle position; the top ends of the left and right sides of the collecting chamber (15) are provided with arc-shaped portions (151); the inner sides of the top ends of the arc-shaped portions (151) are spirally connected with spiral caps (21); When a leak occurs in the waterproof coiled material (3), the excess gas on the lower side of the waterproof coiled material (3) passes through the leak and enters the water chamber (2). The leaked gas (22) continues to rise and is guided by the guide plate (14) into the collection chamber (15). The gas is guided by the collection chamber (15) into the arc-shaped portion (151) for collection. The original water sample in the arc-shaped portion (151) is discharged. The leaked gas (22) introduced into the left and right sides of the collection chamber (15) cannot be completely consistent, which eventually causes an imbalance between the left and right sides of the collection chamber (15), thereby realizing the detection of weak leaks.

2. The device for detecting the quality of the waterproof layer of the roofing roll material by the inflation method according to claim 1 is characterized in that: The device comprises a fixing frame (12), the top end of the fixing frame (12) being fixedly connected to a support plate (5), the bottom end of the support plate (5) being fixedly connected to a hydraulic rod (6), the bottom output end of the hydraulic rod (6) being fixedly connected to an upper flange (4), and the downward movement of the movable end of the hydraulic rod (6) realizing the downward pressing action of the water chamber (2).

3. The device for detecting the quality of the waterproof layer of the roofing roll material by the inflation method according to claim 2 is characterized in that: The two adjacent collecting chambers (15) are slidably connected to achieve continuous detection of the detection area of ​​the waterproof coiled material (3) and avoid the occurrence of a detection blind area.

4. The device for detecting the quality of the waterproof layer of the roofing roll by the inflation method according to claim 1 is characterized in that: A tilt sensor (16) is fixedly connected to the top of the middle position of the collection chamber (15), and the tilt of the collection chamber (15) can be judged more accurately by reading the value of the tilt sensor (16).

5. The device for testing the quality of waterproof layer of roofing roll material by using an inflation method according to claim 1 is characterized in that: The bottom end of the water chamber (2) is connected to an inlet and outlet water pipe (18) with a valve. When water is introduced into the inlet and outlet water pipe (18), the water level in the water chamber (2) is kept 5 cm higher than the top of the collection chamber (15). The upper surface of the guide plate (14) is fixedly connected to a vibration motor (20).

6. The device for testing the quality of waterproof layer of roofing roll material by using an inflation method according to claim 5 is characterized in that: The device is also provided with an air chamber (1), the air chamber (1) and the water chamber (2) corresponding to each other in the upper and lower parts, a flange (4) is also provided on the outer side of the top end of the air chamber (1), and the waterproof coiled material (3) is located between the air chamber (1) and the water chamber (2). When the water chamber (2) is pressed downward, the top end of the air chamber (1) can be sealed.

7. The device for testing the quality of waterproof layer of roofing roll material by inflation method according to claim 6 is characterized by: One side of the air chamber (1) is connected to an air compressor (7), and the air compressor (7) is used to realize the interference fit of the air chamber (1). A slide plate (10) is slidably connected to the inner side of the bottom end of the air chamber (1), and a connecting frame (8) is fixedly connected to the top end of the slide plate (10). A plurality of equidistantly arranged support rollers (13) are rotatably connected to the top end of the connecting frame (8), and the front and rear widths of the support rollers (13) are consistent with the front and rear widths of the waterproof coiled material (3), and the support rollers (13) can realize support for the waterproof coiled material (3).

8. The device for testing the quality of waterproof layer of roofing membrane by using an inflation method according to claim 7 is characterized in that: A motor (11) is fixedly connected to one side of the air chamber (1), a screw (9) is fixedly connected to the end of the main shaft of the motor (11), the outer side of the screw (9) is spirally connected to the inner side of the slide plate (10), and the left end of the screw (9) is rotationally connected to the inner side of the left end of the water chamber (2), so that the reciprocating movement of the rotating slide plate (10) is achieved through the reciprocating rotation of the motor (11).

9. A method for testing the quality of a roofing roll waterproofing layer by an inflation method, using the device for testing the quality of a roofing roll waterproofing layer by an inflation method as claimed in claim 8, characterized in that: The steps are: Step 1: Add a water sample that is not easy to foam into the water chamber (2) through the water inlet and outlet pipes (18), the water sample is water added with a defoaming agent, and the bubbles on the inner surface of the guide plate (14) are vibrated by the vibration motor (20), and the spiral cap (21) is opened to exhaust the gas in the collection chamber (15), so that the collection chamber (15) is completely immersed in water, and the spiral cap (21) is closed again; Step 2: injecting gas into the air chamber (1) through an air compressor (7) to gradually increase the pressure of the air chamber (1) until it is greater than the water pressure at the bottom of the water chamber (2) in step 1; Step 3: When a leak occurs in the waterproofing membrane (3), the excess gas on the lower side of the waterproofing membrane (3) will pass through the leak and enter the water chamber (2). The leaked gas (22) continues to rise and is guided by the guide plate (14) into the collecting chamber (15). The gas is guided by the collecting chamber (15) into the arc-shaped portion (151) for collection. The original water sample in the arc-shaped portion (151) is discharged. Due to the randomness of the size and position of the leak, the leaked gas (22) introduced into the left and right sides of the collecting chamber (15) cannot be completely consistent, which eventually causes the left and right sides of the collecting chamber (15) to become unbalanced and tilted, thereby realizing the detection of weak leaks.

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