Water permeability testing device for building waterproof coiled material

Abstract

The invention provides a building waterproof roll water permeability testing device, and belongs to the technical field of waterproof roll testing, the building waterproof roll water permeability testing device comprises a bottom plate, a water tank, a winding roller, an unwinding roller, a first driving assembly, an abutting assembly, a second driving assembly and a pressure applying assembly, the winding roller and the unwinding roller are rotatably arranged at the left end and the right end of the upper portion of the bottom plate respectively, and the pressing assembly is arranged on the bottom plate; the water tank is arranged between the unwinding roller and the winding roller, the upper end of the water tank is open, a support plate is fixedly arranged on the upper portion of the bottom plate, the abutting assembly is arranged over the water tank, and the first driving assembly is installed on the top wall of the inner side of the support plate and used for driving the abutting assembly to move up and down. Compared with the prior art, the sectional type continuous automatic water permeability test of the long waterproof roll can be realized, and the test water has certain pressure in the test process, so that the test time is effectively shortened, and the test effect and the test efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of waterproof coiled material testing, in particular to a water permeability testing device for building waterproof coiled materials. Background Art

[0002] Waterproof membranes are mainly used in building walls, roofs, tunnels, roads, landfills, etc. They are a kind of flexible building material product that can be rolled into a roll to prevent the leakage of external rainwater and groundwater. As a leak-proof connection between the project foundation and the building, it is the first barrier to waterproofing the entire project and plays a vital role in the entire project. During the production process of waterproof membranes, staff often conduct water permeability tests on the waterproof membranes before leaving the factory to evaluate their waterproof and leak-proof performance.

[0003] Currently, when conducting a water permeability test on a waterproof membrane, the membrane to be tested is mostly placed on a workbench and brought into contact with a sealed chamber. Test water is then transported into the sealed chamber, and the staff observes whether the test water can pass through the membrane to determine the water permeability of the membrane. However, this testing method is relatively traditional. On the one hand, since the length of the produced waterproof membrane is usually long, when a comprehensive test of the waterproof membrane is required, the position of the waterproof membrane needs to be repeatedly adjusted, resulting in a more cumbersome testing process. On the other hand, the time it takes for the test water to pass through the waterproof membrane is usually long, and a long wait is required to obtain the test results, resulting in a relatively low efficiency in testing the waterproof membrane. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a water permeability testing device for building waterproof membranes.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A water permeability testing device for building waterproof membranes includes a base plate, a water tank, a winding roller, an unwinding roller, a first driving assembly, a pressing assembly, a second driving assembly, and a pressure assembly. The winding roller and the unwinding roller are rotatably arranged at the left and right ends of the upper portion of the bottom plate, The water tank is arranged between the unwinding roller and the winding roller, and the upper end of the water tank is open. A bracket plate is fixedly provided on the upper portion of the bottom plate, the pressing assembly is provided just above the water tank, and the first driving assembly is installed on the inner top wall of the bracket plate, and is used to drive the pressing assembly to move up and down. When the pressing assembly moves downward, the waterproof coil is pressed against the open portion of the upper portion of the water tank. The pressure component is arranged inside the water tank. When the pressure component presses the waterproof coiled material to the upper opening of the water tank, the pressure component is used to apply upward pressure to the water source inside the water tank. The second driving assembly is arranged on the side of the winding roller. When the pressing assembly moves upward, the second driving assembly is used to drive the winding roller to rotate a predetermined angle to wind the waterproof membrane to a predetermined length.

[0006] As a further improvement of the present invention: the pressing component includes a pressing frame, The shape and size of the pressing frame are consistent with those of the water tank, and the pressing frame is controlled by the first driving assembly to move up and down.

[0007] As a further improvement of the present invention: a support plate is fixedly provided on the upper portion of the pressing frame. The first driving assembly includes a hydraulic cylinder, a piston sleeve, a pressure rod and a first elastic member. The hydraulic cylinder is fixedly mounted on the inner top wall of the bracket plate, the piston sleeve is arranged at the output end of the hydraulic cylinder, one end of the pressure rod is fixedly connected to the support plate, and the other end extends to the inside of the piston sleeve and telescopically cooperates with the piston sleeve, one end of the first elastic member is connected to the piston sleeve, and the other end is connected to the support plate, for providing elastic support to the support plate.

[0008] As a further improvement of the present invention: a partition net is provided at the inner bottom of the pressing frame, and powder that changes color when exposed to water is laid on the upper portion of the partition net.

[0009] As a further improvement of the present invention: the powder is anhydrous copper sulfate or anhydrous cobalt chloride.

[0010] As a further improvement of the present invention: sealing strips are provided at the bottom of the pressure frame and the open position of the upper part of the water tank.

[0011] As a further improvement of the present invention: a second gear is fixedly provided on the winding roller. The second driving assembly includes a supporting vertical rod, a supporting horizontal rod, a connecting rod and a bevel gear. One end of the connecting rod is fixedly connected to the piston sleeve, and the other end is fixedly connected to the support cross bar. The upper end of the support vertical rod is fixedly connected to the support cross bar, and the lower end extends to the side of the second gear. The bevel gear plates are provided in several groups, and several of the bevel gear plates are hingedly arranged on the side walls of the support vertical rod and spaced apart along the length direction of the support vertical rod. One side of each group of bevel gear plates is connected to the support vertical rod through a group of second elastic members, and the second elastic members are used to provide elastic support for the bevel gear plates, and several of the bevel gear plates can be unidirectionally engaged with the second gear.

[0012] As a further improvement of the present invention: a first gear is rotatably provided on the outer wall of the water tank, and a slide groove is provided on the side wall of the water tank. The pressure assembly includes a piston plate, a third elastic member, a lifting rod and a second rack. The piston plate is movably arranged inside the water tank, one end of the lifting rod extends to the bottom of the piston plate, and the other end extends from the slide groove to the outside of the water tank and is fixedly connected to the second rack, one end of the third elastic member is connected to the bottom wall of the piston plate, and the other end is connected to the upper part of the lifting rod, the second rack is meshed and arranged on one side of the first gear, and the first rack that can mesh with the first gear is fixedly provided on the side wall of the supporting vertical rod.

[0013] As a further improvement of the present invention: the first elastic member, the second elastic member and the third elastic member are springs or metal springs.

[0014] As a further improvement of the present invention: two groups of first support seats and two groups of second support seats are fixedly provided on the upper portion of the bottom plate, the two groups of first support seats are relatively distributed, and the two groups of second support seats are relatively distributed. A first abutment plate is rotatably provided on the inner wall of one group of the first support seats and one group of the second support seats, and a group of screws are threadedly fitted on the side walls of another group of the first support seats and another group of the second support seats, and a second abutment plate is rotatably provided on the end of the screw.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The unwinding roller is then rotated to move the unwinding roller upwards to release the pressure on the waterproofing material, and then the second driving assembly drives the unwinding roller to rotate a predetermined angle, thereby winding the waterproofing material to a predetermined length, and the waterproofing material moves horizontally a predetermined distance between the pressing assembly and the water tank, and then the first driving assembly drives the unwinding roller to rotate a predetermined angle, thereby winding the waterproofing material to a predetermined length, and then the waterproofing material moves horizontally a predetermined distance between the pressing assembly and the water tank, and then the first driving assembly drives the unwinding roller to rotate a predetermined angle, thereby winding the waterproofing material to a predetermined length, and then the waterproofing material moves horizontally a predetermined distance between the pressing assembly and the water tank, and then the first driving assembly drives the unwinding roller to rotate a predetermined angle, thereby winding the waterproofing material to a predetermined length, and then the The pressing component moves downward, and the pressing component presses the waterproof membrane to the open position on the upper part of the water tank again, and then the pressure component applies upward pressure to the water source inside the water tank again, so that the water source acts on the bottom wall of the waterproof membrane again, thereby performing a water permeability test on the local part of the waterproof membrane again... Such a reciprocating cycle can be used to perform a segmented continuous automatic test on the water permeability of a longer waterproof membrane; when the pressure component applies upward pressure to the water source inside the water tank so that the water source acts on the bottom wall of the waterproof membrane, if the water permeability of the waterproof membrane cannot meet the requirements, the water source can pass through the waterproof membrane from bottom to top under the action of pressure; on the contrary, if the water permeability of the waterproof membrane meets the requirements, the water source cannot pass through the waterproof membrane under the action of pressure. Compared with the existing technology, it can realize a segmented continuous automatic water permeability test of a longer waterproof membrane, and the test water has a certain pressure during the test, thereby effectively shortening the test time and improving the test effect and test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a water permeability test device for building waterproof membranes Figure 1 ; Figure 2 A schematic diagram of the structure of a water permeability test device for building waterproof membranes Figure 2 ; Figure 3 A schematic diagram of the structure of a water permeability test device for building waterproof membranes Figure 3 ; Figure 4 for Figure 1 A magnified schematic diagram of area A in the middle; Figure 5 for Figure 1 A magnified schematic diagram of area B in the middle; Figure 6 for Figure 2 Enlarged schematic diagram of area C in the middle; Figure 7 for Figure 2 Enlarged schematic diagram of area D in the middle; In the figure: 10-bottom plate, 101-bracket plate, 102-first support seat, 103-second support seat, 104-first abutment plate, 105-second abutment plate, 106-screw, 20-water tank, 201-first gear, 202-chute, 30-winding roller, 301-second gear, 40-unwinding roller, 50-first drive assembly, 501-hydraulic cylinder, 502-piston sleeve, 503-pressure rod, 5 04-first elastic member, 60-pressing assembly, 601-pressing frame, 602-support plate, 603-partition net, 70-second driving assembly, 701-support vertical rod, 702-support horizontal rod, 703-connecting rod, 704-oblique gear, 705-second elastic member, 706-first rack, 80-pressure assembly, 801-piston plate, 802-third elastic member, 803-lifting rod, 804-second rack. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0018] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 limiting the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0021] See also Figure 1 、 Figure 2 as well as Figure 3The present embodiment provides a water permeability testing device for building waterproof membranes, including a bottom plate 10, a water tank 20, a winding roller 30, an unwinding roller 40, a first driving assembly 50, a pressing assembly 60, a second driving assembly 70, and a pressure assembly 80. The winding roller 30 and the unwinding roller 40 are respectively rotatably arranged at the left and right ends of the upper part of the bottom plate 10, the water tank 20 is arranged between the unwinding roller 40 and the winding roller 30, the upper end of the water tank 20 is open, a bracket plate 101 is fixedly provided on the upper part of the bottom plate 10, the pressing assembly 60 is arranged just above the water tank 20, and the first driving assembly 50 is mounted on the bracket On the inner top wall of the plate 101, it is used to drive the pressing component 60 to move up and down. When the pressing component 60 moves downward, it presses the waterproof membrane to the upper opening of the water tank 20. The pressure component 80 is arranged inside the water tank 20. When the pressing component 60 presses the waterproof membrane to the upper opening of the water tank 20, the pressure component 80 is used to apply upward pressure to the water source inside the water tank 20. The second driving component 70 is arranged on the side of the winding roller 30. When the pressing component 60 moves upward, the second driving component 70 is used to drive the winding roller 30 to rotate a predetermined angle to wind the waterproof membrane to a predetermined length.

[0022] When it is necessary to conduct a water permeability test on the building waterproof membrane, the unwinding roller 40 with the wound waterproof membrane can be rotatably installed at the upper right end position of the base plate 10, and the winding roller 30 is rotatably installed at the upper left end position of the base plate 10, and then one end of the waterproof membrane is pulled so that the other end of the waterproof membrane is connected to the winding roller 30. At this time, the waterproof membrane passes between the pressing component 60 and the water tank 20, and then the pressing component 60 is driven downward by the first driving component 50 to press the waterproof membrane against the open position on the upper part of the water tank 20, and then the pressure applying component 80 applies upward pressure to the water source inside the water tank 20, so that the water source acts on the bottom wall of the waterproof membrane, thereby completing the local water permeability test of the waterproof membrane, and then the first driving component 50 drives the pressing component 60 to move upward, thereby releasing the pressing state of the waterproof membrane, and then the second driving component 70 drives the winding roller 30 to rotate a predetermined angle, thereby The waterproof roll is rolled to a predetermined length, and the waterproof roll is moved horizontally between the pressing component 60 and the water tank 20 by a predetermined distance. Then, the first driving component 50 drives the pressing component 60 downward again, and the pressing component 60 presses the waterproof roll to the open position on the upper part of the water tank 20 again. Then, the pressure component 80 applies upward pressure to the water source inside the water tank 20 again, so that the water source acts on the bottom wall of the waterproof roll again, thereby performing a water permeability test on the local part of the waterproof roll again... This reciprocating cycle can perform a segmented continuous automatic test on the water permeability of a longer waterproof roll; when the pressure component 80 applies upward pressure to the water source inside the water tank 20 so that the water source acts on the bottom wall of the waterproof roll, if the water permeability of the waterproof roll cannot meet the requirements, the water source can pass through the waterproof roll from bottom to top under the action of pressure. On the contrary, if the water permeability of the waterproof roll meets the requirements, the water source cannot pass through the waterproof roll under the action of pressure.

[0023] See also Figure 1 、 Figure 2 as well as Figure 3 In one embodiment, the pressing assembly 60 includes a pressing frame 601, which has the same shape and size as the water tank 20. The pressing frame 601 is controlled by the first driving assembly 50 to move up and down. When the first driving assembly 50 drives the pressing frame 601 to move downward, the pressing frame 601 presses the waterproof membrane to the upper opening of the water tank 20. At this time, the waterproof membrane between the pressing frame 601 and the water tank 20 is in a sealed state, so that when the pressure assembly 80 subsequently applies pressure to the water source so that the water source acts on the bottom wall of the waterproof membrane, it can prevent the water source from leaking from the gap between the water tank 20 and the waterproof membrane, thereby improving the test effect.

[0024] See also Figure 1 as well as Figure 6In one embodiment, a support plate 602 is fixedly provided on the upper part of the pressure frame 601, and the first driving assembly 50 includes a hydraulic cylinder 501, a piston sleeve 502, a pressure rod 503 and a first elastic member 504. The hydraulic cylinder 501 is fixedly installed on the inner top wall of the bracket plate 101, and the piston sleeve 502 is arranged at the output end of the hydraulic cylinder 501. One end of the pressure rod 503 is fixedly connected to the support plate 602, and the other end extends into the interior of the piston sleeve 502 and telescopically cooperates with the piston sleeve 502. One end of the first elastic member 504 is connected to the piston sleeve 502, and the other end is connected to the support plate 602, for providing elastic support to the support plate 602.

[0025] The hydraulic cylinder 501 drives the piston sleeve 502 to extend, thereby driving the pressure rod 503, the first elastic member 504, the support plate 602 and the pressure frame 601 to move downward as a whole. When the pressure frame 601 moves downward, the waterproof membrane is pressed against the upper open position of the water tank 20 to achieve a seal between the waterproof membrane and the water tank 20. After the pressure frame 601 presses the waterproof membrane, as the piston sleeve 502 continues to extend, the pressure rod 503 moves toward the inside of the piston sleeve 502, and the first elastic member 504 is compressed.

[0026] See also Figure 1 as well as Figure 2 In one embodiment, a partition net 603 is provided at the bottom inner side of the pressing frame 601 , and a powder that changes color when exposed to water is laid on the upper portion of the partition net 603 .

[0027] When the pressure-applying component 80 applies upward pressure to the water source inside the water tank 20 so that the water source acts on the bottom wall of the waterproof membrane, if the water permeability of the waterproof membrane cannot meet the requirements, the water source will pass through the waterproof membrane from bottom to top under the action of pressure and then act on the upper surface of the waterproof membrane. The water source acting on the upper surface of the waterproof membrane can further pass through the partition mesh 603 and act on the powder thereon, causing the powder to change color when it comes into contact with water. Based on the color change phenomenon of the powder, the staff can intuitively and quickly conclude that the water permeability of the waterproof membrane cannot meet the requirements.

[0028] In one embodiment, the powder can be anhydrous copper sulfate or anhydrous cobalt chloride, which is not limited here. The white powdered anhydrous copper sulfate generates blue copper sulfate pentahydrate crystals when it comes into contact with water, while the dark blue powdered anhydrous cobalt chloride turns into a pink hydrate when it comes into contact with water.

[0029] In one embodiment, sealing strips are provided at the bottom of the pressing frame 601 and the upper open position of the water tank 20. When the pressing frame 601 presses the waterproof membrane to the upper open position of the water tank 20, the sealing strips can improve the sealing effect between the waterproof membrane and the water tank 20, thereby better preventing the pressurized water source from leaking from the gap between the waterproof membrane and the water tank 20.

[0030] See also Figure 1 as well as Figure 5 In one embodiment, the second gear 301 is fixedly provided on the winding roller 30, and the second driving assembly 70 includes a support vertical rod 701, a support cross rod 702, a connecting rod 703 and a bevel gear piece 704. One end of the connecting rod 703 is fixedly connected to the piston sleeve 502, and the other end is fixedly connected to the support cross rod 702. The upper end of the support vertical rod 701 is fixedly connected to the support cross rod 702, and the lower end extends to the side of the second gear 301. The bevel gear piece 704 is provided with several groups, and several of the bevel gear pieces 704 are hingedly provided on the side wall of the support vertical rod 701 and spaced apart along the length direction of the support vertical rod 701. One side of each group of bevel gear pieces 704 is connected to the support vertical rod 701 by a group of second elastic members 705. The second elastic member 705 is used to provide elastic support for the bevel gear piece 704, and several of the bevel gear pieces 704 can be unidirectionally meshed with the second gear 301.

[0031] When the hydraulic cylinder 501 drives the piston sleeve 502 to extend and thus drives the pressure frame 601 to move downward, the piston sleeve 502 can drive the support vertical rod 701 to move downward synchronously through the connecting rod 703 and the supporting cross bar 702, and the supporting vertical rod 701 drives a number of beveled teeth 704 to move downward synchronously. At this time, a number of beveled teeth 704 are pushed by the second gear 301 in turn and then deflected toward the direction of the supporting vertical rod 701 in turn. A number of beveled teeth 704 cannot engage with the second gear 301. After the local water permeability test of the waterproof membrane is completed, the hydraulic cylinder 501 drives the piston sleeve 502 to retract, and then drives the support vertical rod 701 and a number of beveled teeth 704 through the connecting rod 703 and the supporting cross bar 702. Move upward. When the piston sleeve 502 retracts to a certain height, the first elastic member 504 pulls the support plate 602 and drives the pressing frame 601 to move upward, thereby releasing the compressed state of the waterproof membrane. Subsequently, the upward-moving several beveled teeth 704 act on the second gear 301 and engage with the second gear 301, thereby driving the second gear 301 and the winding roller 30 to rotate a predetermined angle. The winding roller 30 winds the waterproof membrane to a predetermined length, so that the waterproof membrane moves horizontally between the pressing frame 601 and the water tank 20 by a predetermined distance, so that when the pressing frame 601 moves downward subsequently, different positions of the waterproof membrane can be pressed again to the upper opening of the water tank 20, thereby realizing a segmented water permeability test of the waterproof membrane.

[0032] See also Figure 2 、 Figure 5 as well as Figure 7 In one embodiment, a first gear 201 is rotatably provided on the outer wall of the water tank 20, a slide groove 202 is opened on the side wall of the water tank 20, and the pressure assembly 80 includes a piston plate 801, a third elastic member 802, a lifting rod 803 and a second rack 804. The piston plate 801 is movably provided inside the water tank 20, one end of the lifting rod 803 extends to the bottom of the piston plate 801, and the other end extends from the slide groove 202 to the outside of the water tank 20 and is fixedly connected to the second rack 804. One end of the third elastic member 802 is connected to the bottom wall of the piston plate 801, and the other end is connected to the upper part of the lifting rod 803. The second rack 804 is meshed and provided on one side of the first gear 201. A first rack 706 that can mesh with the first gear 201 is fixedly provided on the side wall of the support vertical rod 701.

[0033] When the pressing frame 601 moves downward and presses the waterproof membrane to the upper opening of the water tank 20, as the piston sleeve 502 continues to move downward, the piston sleeve 502 drives the support vertical rod 701 to continue to move downward. At this time, the first rack 706 on the side wall of the support vertical rod 701 meshes with the first gear 201, thereby driving the first gear 201 to rotate. When the first gear 201 rotates, it meshes with the second rack 804 and drives the second rack 804 to move upward. The second rack 804 drives the lifting rod 803 to move upward. When the lifting rod 803 moves upward, the third elastic member 802 applies upward pressure to the piston plate 801, so that the water source located above the piston plate 801 It acts on the bottom wall of the waterproof membrane, thereby performing a water permeability test on the waterproof membrane; after the water permeability test of the waterproof membrane is completed, as the hydraulic cylinder 501 drives the pressure frame 601 and the support vertical rod 701 to move upward, the support vertical rod 701 drives the first rack 706 to move upward, and the first rack 706 engages with the first gear 201 in the opposite direction, thereby driving the first gear 201 to rotate in the opposite direction. When the first gear 201 rotates in the opposite direction, it drives the second rack 804 and the lifting rod 803 to move downward through the reverse engagement with the second rack 804, thereby releasing the pressure on the piston plate 801 to prevent the water source above the piston plate 801 from being pressed out from the upper opening of the water tank 20.

[0034] In one embodiment, the first elastic member 504 , the second elastic member 705 and the third elastic member 802 may be springs or metal springs, which are not limited here.

[0035] See also Figure 1In one embodiment, two groups of first support seats 102 and two groups of second support seats 103 are fixedly provided on the upper part of the base plate 10. The two groups of first support seats 102 are relatively distributed, and the two groups of second support seats 103 are relatively distributed. A first abutment disk 104 is rotatably provided on the inner wall of one group of the first support seats 102 and one group of the second support seats 103, and a group of screws 106 are threadedly fitted on the side walls of the other group of the first support seats 102 and the other group of the second support seats 103, and a second abutment disk 105 is rotatably provided on the end of the screw 106.

[0036] When the unwinding roller 40 is installed, the winding roller 30 can be placed between the two sets of first support seats 102, and then the corresponding screw 106 can be rotated to drive the corresponding second abutment plate 105 to move. When the unwinding roller 40 is installed, the winding roller 30 can be placed between the two sets of first support seats 102, and then the corresponding screw 106 can be rotated to drive the corresponding second abutment plate 105 to move. When the second abutment plate 105 moves, it acts on one end of the winding roller 30, and then presses the other end of the winding roller 30 against the side wall of the corresponding first abutment plate 104, thereby realizing the installation of the winding roller 30.

[0037] In one embodiment, the predetermined distance mentioned above refers to the width of the water tank 20. Each time the pressing assembly 60 moves upward, the waterproof membrane moves horizontally by a distance of the width of the water tank 20 under the rotation and winding action of the winding roller 30, thereby achieving a comprehensive test of the waterproof membrane, avoiding the occurrence of missed tests of the waterproof membrane, and thus improving the test effect.

[0038] In the embodiment of the present invention, when it is necessary to conduct a water permeability test on the building waterproof membrane, the unwinding roller 40 wound with the waterproof membrane can be rotatably installed at the upper right end position of the bottom plate 10, and the winding roller 30 can be rotatably installed at the upper left end position of the bottom plate 10. Then, one end of the waterproof membrane is pulled so that the one end of the waterproof membrane is connected to the winding roller 30. At this time, the waterproof membrane passes between the pressing component 60 and the water tank 20, and then the pressing component 60 is driven downward by the first driving component 50 to press the waterproof membrane against the water tank 20. 0, then the pressure component 80 applies upward pressure to the water source inside the water tank 20, so that the water source acts on the bottom wall of the waterproof membrane, thereby completing the local water permeability test of the waterproof membrane, then the first driving component 50 drives the pressing component 60 to move upward, thereby releasing the pressing state of the waterproof membrane, and then the second driving component 70 drives the winding roller 30 to rotate a predetermined angle, and then the waterproof membrane is wound to a predetermined length, and the waterproof membrane moves horizontally between the pressing component 60 and the water tank 20 for a predetermined distance, and then The first driving assembly 50 drives the pressing assembly 60 downward again, and the pressing assembly 60 presses the waterproof roll to the open position on the upper part of the water tank 20 again, and then the pressure assembly 80 applies upward pressure to the water source inside the water tank 20 again, so that the water source acts on the bottom wall of the waterproof roll again, thereby performing a water permeability test on the local part of the waterproof roll again... This reciprocating cycle can perform a segmented continuous automatic test on the water permeability of a longer waterproof roll; when the pressure assembly 80 applies upward pressure to the water source inside the water tank 20 so that the water source acts on the bottom wall of the waterproof roll, if the water permeability of the waterproof roll does not meet the requirements, the water source can pass through the waterproof roll from bottom to top under the action of pressure; on the contrary, if the water permeability of the waterproof roll meets the requirements, the water source cannot pass through the waterproof roll under the action of pressure. Compared with the existing technology, it can realize a segmented continuous automatic water permeability test of a longer waterproof roll, and the test water has a certain pressure during the test, thereby effectively shortening the test time and improving the test effect and test efficiency.

[0039] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A water permeability testing device for building waterproof membrane, characterized in that: It comprises a bottom plate (10), a water tank (20), a winding roller (30), an unwinding roller (40), a first driving assembly (50), a pressing assembly (60), a second driving assembly (70) and a pressing assembly (80), The winding roller (30) and the unwinding roller (40) are rotatably arranged at the left and right ends of the upper portion of the bottom plate (10). The water tank (20) is arranged between the unwinding roller (40) and the winding roller (30), and the upper end of the water tank (20) is open. A bracket plate (101) is fixedly provided on the upper portion of the bottom plate (10), the pressing assembly (60) is provided directly above the water tank (20), and the first driving assembly (50) is mounted on the inner top wall of the bracket plate (101) and is used to drive the pressing assembly (60) to move up and down. When the pressing assembly (60) moves downward, it presses the waterproof coiled material to the open portion of the upper portion of the water tank (20). The pressure component (80) is arranged inside the water tank (20). When the pressing component (60) presses the waterproof coiled material to the upper opening of the water tank (20), the pressure component (80) is used to apply upward pressure to the water source inside the water tank (20). The second driving assembly (70) is arranged on the side of the winding roller (30), and when the pressing assembly (60) moves upward, the second driving assembly (70) is used to drive the winding roller (30) to rotate a predetermined angle to rewind the waterproofing coil to a predetermined length.

2. A water permeability testing device for building waterproof membrane according to claim 1, characterized in that: The pressing assembly (60) comprises a pressing frame (601), The shape and size of the pressing frame (601) are consistent with those of the water tank (20), and the pressing frame (601) is controlled to move up and down by the first driving component (50).

3. A water permeability testing device for building waterproof membrane according to claim 2, characterized in that: A support plate (602) is fixedly provided on the upper portion of the pressing frame (601). The first driving assembly (50) comprises a hydraulic cylinder (501), a piston sleeve (502), a pressure rod (503) and a first elastic member (504). The hydraulic cylinder (501) is fixedly mounted on the inner top wall of the support plate (101); the piston sleeve (502) is arranged at the output end of the hydraulic cylinder (501); one end of the pressure rod (503) is fixedly connected to the support plate (602); the other end extends into the interior of the piston sleeve (502) and is telescopically matched with the piston sleeve (502); one end of the first elastic member (504) is connected to the piston sleeve (502) and the other end is connected to the support plate (602), and is used to provide elastic support for the support plate (602).

4. A water permeability testing device for building waterproof membrane according to claim 2, characterized in that: A partition net (603) is provided at the bottom inner side of the pressing frame (601), and a powder that changes color when exposed to water is laid on the upper portion of the partition net (603).

5. A water permeability testing device for building waterproof membrane according to claim 4, characterized in that: The powder is anhydrous copper sulfate or anhydrous cobalt chloride.

6. A water permeability testing device for building waterproof membrane according to claim 2, characterized in that: Sealing strips are provided at the bottom of the pressing frame (601) and the upper open position of the water tank (20).

7. A water permeability testing device for building waterproof membrane according to claim 3, characterized in that: A second gear (301) is fixedly provided on the winding roller (30). The second driving assembly (70) comprises a supporting vertical rod (701), a supporting horizontal rod (702), a connecting rod (703) and an oblique tooth piece (704). One end of the connecting rod (703) is fixedly connected to the piston sleeve (502), and the other end is fixedly connected to the support cross bar (702). The upper end of the support vertical rod (701) is fixedly connected to the support cross bar (702), and the lower end extends to the side of the second gear (301). The beveled tooth pieces (704) are provided in a plurality of groups. The plurality of beveled tooth pieces (704) are hingedly arranged on the side wall of the support vertical rod (701) and are spaced apart along the length direction of the support vertical rod (701). One side of each group of beveled tooth pieces (704) is connected to the support vertical rod (701) via a group of second elastic members (705). The second elastic members (705) are used to provide elastic support for the beveled tooth pieces (704). The plurality of beveled tooth pieces (704) can be unidirectionally meshed with the second gear (301).

8. A water permeability testing device for building waterproof membrane according to claim 7, characterized in that: A first gear (201) is rotatably provided on the outer wall of the water tank (20), and a chute (202) is provided on the side wall of the water tank (20). The pressure assembly (80) includes a piston plate (801), a third elastic member (802), a lifting rod (803) and a second rack (804). The piston plate (801) is movably arranged inside the water tank (20), one end of the lifting rod (803) extends to the bottom of the piston plate (801), and the other end extends from the slide groove (202) to the outside of the water tank (20) and is fixedly connected to the second rack (804), one end of the third elastic member (802) is connected to the bottom wall of the piston plate (801), and the other end is connected to the upper part of the lifting rod (803), the second rack (804) is meshed and arranged on one side of the first gear (201), and a first rack (706) that can mesh with the first gear (201) is fixedly arranged on the side wall of the supporting vertical rod (701).

9. A water permeability testing device for building waterproof membrane according to claim 8, characterized in that: The first elastic member (504), the second elastic member (705) and the third elastic member (802) are springs or metal springs.

10. A water permeability testing device for building waterproof membrane according to claim 1, characterized in that: Two groups of first support seats (102) and two groups of second support seats (103) are fixedly provided on the upper part of the bottom plate (10), the two groups of the first support seats (102) are relatively distributed, and the two groups of the second support seats (103) are relatively distributed. A first abutment disk (104) is rotatably provided on the inner wall of one group of the first support seats (102) and one group of the second support seats (103), and a group of screw rods (106) are threadedly engaged on the side wall of another group of the first support seats (102) and another group of the second support seats (103), and a second abutment disk (105) is rotatably provided on the end of the screw rods (106).

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