Waterproof detection device for building construction

Abstract

The invention relates to the technical field of novel waterproof coiled material detection, in particular to a waterproof detection device for building construction. Comprising a detection box and a support in supporting connection with the bottom of the detection box. The detection box main body is cylindrical; the front end and the rear end of the detection box extend outwards and are provided with openings. A pipe joint is arranged at the bottom of the detection box; a left rotating block and a right rotating block are respectively arranged on the left and right inner walls of the detection box; the left end of the detection cylinder on the inner side of the detection box is rotationally connected to the left rotating block; a cylindrical groove is formed in the right end of the detection cylinder; a cylindrical pump is rotationally and hermetically connected into the cylindrical groove; under the condition that the front auxiliary motor and the rear auxiliary motor drive the corresponding lower rotating rollers and the main motor drives the detection cylinder to work continuously, the waterproof roll can continuously complete the waterproof penetration detection process, and compared with an existing detection mode, the detection efficiency of the building construction waterproof roll is improved, and the batch detection requirement is met.

Description

Technical Field

[0001] This invention relates to the field of new waterproof membrane testing technology, specifically a building construction waterproofing testing device. Background Technology

[0002] Waterproof membranes are mainly used in building walls, roofs, tunnels, highways, landfills, etc., to resist external rainwater and groundwater seepage. They are flexible building materials that can be rolled up and serve as a leak-proof connection between the foundation and the building. They are the first line of defense for waterproofing the entire project and play a vital role in the overall project.

[0003] Existing waterproof membranes, due to their solid structure, lack the characteristics of cushioning and lightweighting and are gradually being phased out. New types of waterproof membranes achieve "air impermeability and water impermeability" through "independent and non-connected pores," such as polymer-based waterproof membranes, PVC waterproof membranes, and high-density polyethylene waterproof membranes. These membranes retain the waterproof and sealing effect of traditional dense membranes while possessing the lightweight, cushioning / insulation properties of porous materials, and are thus widely used.

[0004] New types of waterproof membranes need to undergo waterproof testing before construction. The permeability of these membranes is the core criterion for evaluating their performance and quality standards. Testing typically requires specialized waterproof testing equipment. This involves laying the membrane on a perforated board surface, applying pressure to one or both sides, and observing water penetration to determine performance. For example, patent CN118858100A, entitled "A Waterproof Testing Device for Building Waterproof Membranes," discloses a similar testing structure. However, existing testing devices require the removal of the tested membrane after each test, and a new test can only begin after a new membrane is installed. This lack of continuity and low efficiency makes the testing process inefficient. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes a waterproofing testing device for building construction. With two auxiliary motors driving corresponding lower rotating rollers and a main motor driving the testing cylinder working continuously, the waterproofing membrane can continuously complete the waterproofing penetration testing process. Compared with existing testing methods, this invention improves the testing efficiency of waterproofing membranes for building construction and meets the needs of batch testing.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A waterproofing testing device for building construction, comprising a testing box and a support bracket connected to the bottom of the testing box; the main body of the testing box is cylindrical; the front and rear ends of the testing box extend outwards and are configured as openings; a pipe joint is provided at the bottom of the testing box; left-hand and right-hand rotating blocks are respectively provided on the left and right inner walls of the testing box; the left end of the testing cylinder inside the testing box is rotatably connected to the left-hand rotating block; a cylindrical groove is provided at the right end of the testing cylinder; a cylindrical pump is rotatably and sealingly connected within the cylindrical groove; the air inlet of the cylindrical pump has a downward-facing, fan-shaped opening, and the air outlet of the cylindrical pump is fixedly connected to the right-hand rotating block; a main power supply is fixedly connected to the left side of the left-hand rotating block. The machine is equipped with a main motor output shaft fixedly connected to the left end of the detection cylinder. An annular detection groove is located near the edge inside the detection cylinder. Partitions are evenly fixedly connected to the inner wall of the detection groove along its circumference. The detection groove is divided into multiple independent detection chambers by the partitions. The outer inner wall of the detection groove communicates with the arc-shaped outer surface of the detection cylinder through a detection hole. The inner inner wall of the detection groove communicates with the arc-shaped inner wall of the cylindrical groove through a negative pressure hole. A lower rotating roller is rotatably connected to the inner sides of the front and rear ends of the detection box. The lower rotating roller is driven by an auxiliary motor. An upper rotating roller is rotatably mounted above the lower rotating roller. The waterproof membrane to be tested passes over the lower surface of the detection cylinder from back to front. A camera is fixedly connected to the inner wall of the detection box, aligned with the position where the waterproof membrane leaves the detection cylinder.

[0007] Preferably, the arc length of the air inlet end of the cylindrical pump corresponding to the arc-shaped outer wall of the detection cylinder is less than the arc length of the detection cylinder in contact with the waterproof membrane; and at least one detection chamber inside the detection cylinder is submerged by the water surface in the detection box.

[0008] Preferably, the left and right inner walls of the testing box are connected to clamping rods; the outer walls of the clamping rods are rotatably connected to clamping rollers; multiple clamping rollers are distributed around the testing cylinder; the gap between the clamping rollers and the arc-shaped outer wall of the testing cylinder is adapted to the thickness of the waterproof membrane to be tested.

[0009] Preferably, the left and right inner walls of the testing box are provided with clamping grooves; one end of the clamping groove is close to the testing cylinder, and the other end is away from the testing cylinder; the end of the clamping rod is slidably connected in the clamping groove; the outer wall of the clamping rod away from the testing cylinder is connected to the end of the clamping groove away from the testing cylinder by a first spring.

[0010] Preferably, the top of the testing box is open; the left and right sides of the testing box are respectively provided with a left groove and a right groove through and vertically arranged; the left rotating block is slidably connected to the left groove, and the lower surface of the left rotating block is connected to the lower end of the left groove by a left electric push rod; the right rotating block is slidably connected to the right groove, and the lower surface of the right rotating block is connected to the lower end of the right groove by a right electric push rod.

[0011] Preferably, the inner wall of the middle section of the detection chamber is connected to the inner wall of the cylindrical groove through a negative pressure hole; the detection chamber is slidably and sealingly connected to the adjustment plates on the left and right sides; the inner walls of the left and right sides of the detection chamber are rotatably connected to the screw; the screw passes through the two adjustment plates and is threadedly and sealingly connected to the adjustment plates; the threads at both ends of the screw are arranged in opposite directions.

[0012] Preferably, an annular adjustment groove is provided on the left side of the detection cylinder; an external gear ring is rotatably connected to the inner edge of the adjustment groove; the left end of the screw extends into the adjustment groove; a gear that meshes with the external gear ring is fixedly connected to the left end of the screw; the external gear ring is threaded through and connected to the first bolt.

[0013] Preferably, the inner walls of the front and rear ends of the detection box are vertically provided with adaptation grooves; an adaptation block is slidably connected to the adaptation groove; the upper surface of the adaptation block is connected to the upper inner wall of the adaptation groove by a second spring; and the end of the upper rotating roller is rotatably connected to the adaptation block.

[0014] Preferably, a square rod is fixedly connected to the inner side of the front and rear ends of the detection box along the left and right direction; the square rod is slidably connected to a limiting plate; the adjusting plate is made of magnetic material and can magnetically attract the limiting plate.

[0015] Preferably, the outer wall of the upper roller is provided with an axial groove along the axial direction; a plurality of axial grooves are evenly distributed around the circumference of the upper roller; two axial seats are slidably connected in the axial groove; the axial seats are provided with a stepped hole through them; a second bolt is threaded into the stepped hole; a pushing groove is provided on the outer wall of the axial seat; the depth of one end of the pushing groove is shallower than that of the other end; the bottom of the pushing groove is inclined; a pushing block is slidably connected to the bottom of the pushing groove; the pushing block is connected to one end of the pushing groove by an elastic rope.

[0016] The beneficial effects of this invention are as follows: 1. With the two auxiliary motors driving the corresponding lower rotating rollers and the main motor driving the detection cylinder working continuously, the waterproof membrane can continuously complete the waterproof penetration detection process. Compared with the existing detection methods, this invention improves the detection efficiency of waterproof membranes in building construction and meets the needs of batch testing.

[0017] 2. During the rotation of the screw, the present invention will drive two threaded transmission and sealing adjustment plates to move closer or further apart. When the two adjustment plates move closer together, the space of the working chamber will decrease, thus making the detection device suitable for the penetration detection of narrow waterproof membranes. When the two adjustment plates move further apart, the space of the working chamber will increase, thus making the detection device suitable for the penetration detection of wide waterproof membranes, thereby improving the detection applicability of waterproof membranes.

[0018] 3. During the contact process between the two left and right pushing blocks and the waterproof membrane, the two pushing blocks will slide along the bottom of the inclined pushing groove. The two pushing blocks will overcome the corresponding elastic ropes and move away from each other, so that the pushing blocks will use static friction to push the edge of the waterproof membrane to the left and right, thereby achieving the purpose of spreading the waterproof membrane and making the waterproof membrane flatter before penetration testing. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the present invention, showing the removal of the detection box and the bracket; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 2 Enlarged view of point B in the middle; Figure 5 This is a perspective view of the detection cylinder in this invention; Figure 6 This is a perspective view of the adjusting plate, screw, external gear ring, gear, and first bolt in this invention; Figure 7 This is a perspective view of the cylindrical pump in this invention; Figure 8 This is a perspective view of the axial seat in this invention; Figure 9 This is a cross-sectional view of the present invention; Figure 10 yes Figure 9 Enlarged view of point C in the middle; Figure 11 This is a structural diagram of a new type of waterproof membrane.

[0021] In the diagram: Detection box 1, bracket 11, pipe connector 12, camera 13, clamping rod 14, clamping roller 141, clamping groove 142, first spring 143, left groove 15, left electric push rod 151, right groove 16, right electric push rod 161, adaptation groove 17, adaptation block 171, second spring 172, square rod 18, limit plate 181, detection cylinder 2, left rotating block 21, right rotating block 22, cylindrical groove 23, cylindrical pump 24, inlet Air end 241, air outlet 242, main motor 25, detection groove 26, partition 261, detection chamber 262, detection hole 263, negative pressure hole 264, adjustment groove 27, lower rotating roller 3, auxiliary motor 31, upper rotating roller 4, axial groove 41, axial seat 42, stepped hole 43, second bolt 44, push groove 45, push block 46, elastic rope 47, adjustment plate 5, screw 51, external gear ring 52, gear 53, first bolt 54. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 11 As shown, the present invention includes the following embodiments: Example 1: A waterproofing testing device for building construction includes a testing box 1 and a support bracket 11 connected to the bottom of the testing box 1; the main body of the testing box 1 is cylindrical; the front and rear ends of the testing box 1 extend outward and are set as openings; a pipe joint 12 is provided at the bottom of the testing box 1; a left-turning block 21 and a right-turning block 22 are respectively provided on the left and right inner walls of the testing box 1; the left end of the testing cylinder 2 on the inner side of the testing box 1 is rotatably connected to the left-turning block 21; a cylindrical groove 23 is provided at the right end of the testing cylinder 2; a cylindrical pump 24 is rotatably and sealed within the cylindrical groove 23; the air inlet 241 of the cylindrical pump 24 has a downward-facing, fan-shaped opening, and the air outlet 242 of the cylindrical pump 24 is fixedly connected to the right-turning block 22; a main motor 25 is fixedly connected to the left side of the left-turning block 21; the output shaft of the main motor 25... The detection box 1 is fixedly connected to the left end of the detection cylinder 2; an annular detection groove 26 is provided inside the detection cylinder 2 near the edge; partitions 261 are evenly fixedly connected to the inner wall of the detection groove 26 along the circumference; the detection groove 26 is divided into multiple independent detection chambers 262 by the partitions 261; the outer inner wall of the detection groove 26 is connected to the arc-shaped outer surface of the detection cylinder 2 through a detection hole 263; the inner inner wall of the detection groove 26 is connected to the arc-shaped inner wall of the cylindrical groove 23 through a negative pressure hole 264; the lower rotating roller 3 is rotatably connected to the inner side of the front and rear ends of the detection box 1; the lower rotating roller 3 is driven by an auxiliary motor 31; an upper rotating roller 4 is rotatably provided above the lower rotating roller 3; the waterproof membrane to be tested passes around the lower surface of the detection cylinder 2 from back to front; a camera 13 is fixedly connected to the inner wall of the detection box 1 at the position where the waterproof membrane leaves the detection cylinder 2.

[0024] In this embodiment, the arc length of the air inlet end 241 of the cylindrical pump 24 corresponding to the arc-shaped outer wall of the detection cylinder 2 is less than the arc length of the detection cylinder 2 in contact with the waterproof membrane; the number of detection chambers 262 inside the detection cylinder 2 that are submerged by the water surface in the detection box 1 is at least one.

[0025] Before construction, waterproofing testing of the waterproof membrane is necessary to prevent leaks and rework after installation. After moving the waterproof membrane to the rear of the testing device, one end of the strip-shaped membrane is pulled into the testing box 1 from the rear port. The membrane will pass through the gap between the upper roller 4 and lower roller 3 at the rear port of the testing box 1. The membrane will then be pulled forward and pass over the lower surface of the testing cylinder 2. Finally, the membrane will exit through the gap between the upper roller 4 and lower roller 3 at the front port of the testing box 1. The gap between the upper roller 4 and lower roller 3 is adapted to the thickness of the waterproof membrane. Two auxiliary electric... The machine 31 is driven independently, so that the waterproof membrane is in a state of being taut and in close contact with the testing cylinder 2 during the waterproof testing process. As the two auxiliary motors 31 rotate, the lower rotating rollers 3 at the front and rear ends of the testing box 1 will rotate. During the rotation of the lower rotating rollers 3, the waterproof membrane will be driven from back to front. During the transmission of the waterproof membrane, it will move with the testing cylinder 2. The left end of the testing cylinder 2 is rotatably connected to the left rotating block 21. The left end of the testing cylinder 2 is driven by the main motor 25. The main motor 25 will drive the testing cylinder 2 to rotate as the waterproof membrane is pulled forward. In this way, the waterproof membrane and the testing cylinder 2 are in a rolling contact state.

[0026] During the rotation of the detection cylinder 2, the cylindrical pump 24 will work. The cylindrical pump 24 is composed of an internal pump body and an external cylindrical shell. The pump body is an air pump. During the operation of the cylindrical pump 24, the gas in the fan-shaped air inlet 241 will be drawn away. After the operation of the cylindrical pump 24, the gas in the air inlet 241 will be discharged along the air outlet 242 of the cylindrical pump 24. During the rotation of the detection cylinder 2 driven by the main motor 25, the multiple detection chambers 262 inside the detection cylinder 2 will move around the cylindrical pump 24. The air inlet 241 of the cylindrical pump 24 is fan-shaped and the opening faces downward. The multiple detection chambers 262 on the detection cylinder 2 will enter the range of the air inlet 241 of the cylindrical pump 24 in sequence.

[0027] For ease of description, the detection chamber 262 connected to the air inlet 241 of the cylindrical pump 24 is called the activated detection chamber 262, and the detection chamber 262 not connected to the air inlet 241 of the cylindrical pump 24 is called the deactivated detection chamber 262. The activated detection chamber 262 is connected to the air inlet 241 of the cylindrical pump 24 through the negative pressure hole 264. The detection hole 263 corresponding to the activated detection chamber 262 is blocked by the waterproof membrane. Under the action of negative pressure, the gas in the activated detection chamber 262 is discharged along the negative pressure hole 264, the air inlet 241 of the cylindrical pump 24, and the air outlet 242 of the cylindrical pump 24, so that the waterproof membrane is firmly adsorbed on the arc-shaped outer wall of the detection cylinder 2 before the penetration test. As the waterproof membrane is submerged in the water surface of the detection box 1, if the waterproof membrane has defects such as cracks and air holes, the water at the bottom of the detection box 1 will pass through the waterproof membrane and the detection hole 263 and enter the detection chamber 262. If the waterproof membrane does not have defects such as cracks and air holes...

[0028] Even with negative pressure inside the detection chamber 262, water at the bottom of the detection box 1 cannot penetrate the waterproof membrane into the detection chamber 262. After the negative pressure hole 264 corresponding to the activated detection chamber 262 is misaligned with the air inlet 241 of the cylindrical pump 24, the activated detection chamber 262 will become the deactivated detection chamber 262. The deactivated detection chamber 262 cannot continuously generate negative pressure. Thus, after the waterproof membrane is peeled off from the detection hole 263 corresponding to the detection chamber 262, the water in the deactivated detection chamber 262 will flow out through the detection hole 263. The left and right inner sides of the detection box 1 are aligned with the waterproof membrane and detached from the detection cylinder 2. A camera 13 is installed at the location. When the camera 13 detects liquid flowing out of the detection hole 263 corresponding to the deactivated detection chamber 262, it indicates that the section of waterproof membrane is unqualified, and otherwise it is qualified. The waterproof membrane that has completed the test will be pulled out from the gap between the upper rotating roller 4 and the lower rotating roller 3 at the front end of the detection box 1. In this way, with the two auxiliary motors 31 driving the corresponding lower rotating roller 3 and the main motor 25 driving the detection cylinder 2 to work continuously, the waterproof membrane can continuously complete the waterproof penetration test process. Compared with the existing test methods, this improves the test efficiency of waterproof membranes for building construction and meets the needs of batch testing.

[0029] In this embodiment, the pipe connector 12 is used to replenish and pump water into the detection box 1. A water level sensor is installed inside the detection box 1 to sense the water level, thereby stabilizing the water level in the detection cylinder 2.

[0030] Example 2: The left and right inner walls of the test box 1 are connected to the pressing rods 14; the outer wall of the pressing rods 14 is rotatably connected to the pressing rollers 141; a plurality of the pressing rollers 141 are distributed around the test cylinder 2; the gap between the pressing rollers 141 and the arc-shaped outer wall of the test cylinder 2 is adapted to the thickness of the waterproof membrane to be tested.

[0031] In this embodiment, the left and right inner walls of the detection box 1 are provided with pressing grooves 142; one end of the pressing groove 142 is close to the detection cylinder 2, and the other end is away from the detection cylinder 2; the end of the pressing rod 14 is slidably connected in the pressing groove 142; the outer wall of the pressing rod 14 away from the detection cylinder 2 is connected to the end of the pressing groove 142 away from the detection cylinder 2 by a first spring 143.

[0032] One end of the waterproof membrane, under traction, enters through the gap between the upper rotating roller 4 and the lower rotating roller 3 at the rear end of the testing box 1. The other end passes through the gap between the testing cylinder 2 and the pressing roller 141. Finally, the waterproof membrane exits through the gap between the upper rotating roller 4 and the lower rotating roller 3 at the front end of the testing box 1. During the rolling testing process between the waterproof membrane and the testing cylinder 2, the waterproof membrane is pressed by the rolling pressing roller 141. The pressing roller 141 is rotatably connected to the outer wall of the pressing rod 14, so it can roll and contact with the waterproof membrane as it is driven. 1. The waterproof membrane is further pressed onto the outer surface of the detection cylinder 2, and under the negative pressure adsorption of the detection chamber 262, the waterproof membrane is further adhered to the outer surface of the detection cylinder 2, ensuring the smooth progress of the penetration test of the waterproof membrane; furthermore, for the penetration test of waterproof membranes of different thicknesses, the end of the pressing rod 14 is slidably connected in the pressing groove 142, the first spring 143 will transmit the elastic force to the pressing rod 14, and then from the pressing rod 14 to the pressing roller 141, and the pressing roller 141 finally presses against the arc-shaped outer wall of the detection cylinder 2 through the waterproof membrane.

[0033] Example 3: The top of the detection box 1 is open; the left and right sides of the detection box 1 are respectively provided with a left groove 15 and a right groove 16 through and vertically arranged; the left rotating block 21 is slidably connected to the left groove 15, and the lower surface of the left rotating block 21 is connected to the lower end of the left groove 15 by a left electric push rod 151; the right rotating block 22 is slidably connected to the right groove 16, and the lower surface of the right rotating block 22 is connected to the lower end of the right groove 16 by a right electric push rod 161.

[0034] Before conducting a permeability test on the waterproof membrane, it needs to be pulled onto the testing device. Before pulling the waterproof membrane, the left electric push rod 151 and the right electric push rod 161 are extended. During the extension of the left electric push rod 151, the left rotating block 21 will move upward along the left groove 15. During the upward movement of the left rotating block 21, the testing cylinder 2 and the main motor 25 will move upward. During the extension of the right electric push rod 161, the right rotating block 22 will move upward along the right groove 16. During the upward movement of the right rotating block 22, the cylindrical pump 24 will move upward. The cylindrical pump 24 and the detection cylinder 2 move upwards simultaneously, allowing the waterproof membrane to easily pass over the lower surface of the detection cylinder 2. Then, the left electric push rod 151 and the right electric push rod 161 are shortened, and the detection cylinder 2 and the cylindrical pump 24 move downwards simultaneously. The detection cylinder 2 presses the waterproof membrane downwards until it contacts the pressing roller 141. This completes the initial loading process of the waterproof membrane. Subsequent waterproof membrane permeability testing only requires controlling the two auxiliary motors 31 to work together to tighten the waterproof membrane.

[0035] Example 4: The inner wall of the middle section of the detection cavity 262 is connected to the inner wall of the cylindrical groove 23 through the negative pressure hole 264; the detection cavity 262 is slidably and sealingly connected to the adjustment plate 5; the inner walls of the left and right sides of the detection cavity 262 are rotatably connected to the screw 51; the screw 51 passes through the two adjustment plates 5 and is threadedly and sealingly connected to the adjustment plates 5; the threads at both ends of the screw 51 are arranged in opposite directions.

[0036] In this embodiment, an annular adjustment groove 27 is provided on the left side of the detection cylinder 2; an external gear ring 52 is rotatably connected to the inner edge of the adjustment groove 27; the left end of the screw 51 extends into the adjustment groove 27; a gear 53 that meshes with the external gear ring 52 is fixedly connected to the left end of the screw 51; the external gear ring 52 is threaded through and connected to the first bolt 54.

[0037] A single detection chamber 262 is divided into a working chamber in the middle and non-working chambers on both sides by two adjusting plates 5. The working chamber is connected to the negative pressure hole 264, while the non-working chambers are not connected to the negative pressure hole 264. During the rotation of the screw 51, the two threaded transmission sealed adjusting plates 5 will move closer or further apart. When the two adjusting plates 5 move closer together, the space of the working chamber will become smaller, thus making the detection device suitable for the penetration detection of narrow waterproof membranes. When the two adjusting plates 5 move further apart, the space of the working chamber will become larger, thus making the detection device suitable for the penetration detection of wide waterproof membranes, thereby improving the detection applicability of waterproof membranes.

[0038] To solve the problem of cumbersome positioning when rotating a single screw 51, an external gear ring 52 and a first bolt 54 structure are set up. When the first bolt 54 is loosened, it disengages from the inner wall of the adjustment groove 27, thus unlocking the external gear ring 52. Then, rotating the external gear ring 52 drives multiple gears 53 to rotate synchronously. During the rotation of the multiple gears 53, the corresponding screws 51 will rotate. During the rotation of the screws 51, the adjustment plate 5 will move. After the adjustment is completed, the first bolt 54 is tightened, so that the first bolt 54 contacts and locks against the inner wall of the adjustment groove 27. The second driving method for the adjustment plate 5 can be to set corresponding micro cylinders on the left and right inner walls of the detection chamber 262. The micro cylinders will push the two adjustment plates 5 closer to each other or further apart. The driving of the adjustment plate 5 can also be replaced by other linear drive elements.

[0039] Example 5: The inner walls of the front and rear ends of the detection box 1 are vertically provided with adaptation grooves 17; adaptation blocks 171 are slidably connected to the adaptation grooves 17; the upper surface of the adaptation blocks 171 is connected to the upper inner wall of the adaptation grooves 17 by a second spring 172; the end of the upper rotating roller 4 is rotatably connected to the adaptation blocks 171.

[0040] In this embodiment, a square rod 18 is fixedly connected to the inner side of the front and rear ends of the detection box 1 along the left and right direction; the square rod 18 is slidably connected to the limiting plate 181; the adjusting plate 5 is made of magnetic material and can magnetically attract the limiting plate 181; the limiting plate 181 is U-shaped and partially covers the upper rotating roller 4 and the lower rotating roller 3.

[0041] The second spring 172 transmits the elastic force to the adapting block 171, which in turn transmits the elastic force to the upper rotating roller 4. The upper rotating roller 4 presses the elastic force onto the waterproof membrane between the upper rotating roller 4 and the lower rotating roller 3, ensuring the clamping force of the waterproof membrane. This allows for rolling contact and clamping of waterproof membranes of different thicknesses. The limiting plate 181 moves as the adjusting plate 5 slides left and right. The limiting plate 181 can slide along the square rod 18. The limiting plate 181 can also be fitted with a third bolt. Tightening the third bolt against the square rod 18 locks the limiting plate 181 in place. Thus, the width of the two limiting plates 181 is the same as the width of the two adjusting plates 5 within the detection cavity 262, allowing for the adaptation of waterproof membranes of different widths.

[0042] Example 6: The outer wall of the upper rotating roller 4 is provided with an axial groove 41 along the axial direction; a plurality of axial grooves 41 are evenly distributed around the upper rotating roller 4 in the circumference; two axial seats 42 are slidably connected in the axial grooves 41; the axial seats 42 are provided with a stepped hole 43 through them; a second bolt 44 is threadedly connected in the stepped hole 43; a pushing groove 45 is provided on the outer wall of the axial seat 42; the depth of one end of the pushing groove 45 is shallower than that of the other end; the bottom of the pushing groove 45 is inclined; a pushing block 46 is slidably connected to the bottom of the pushing groove 45; the pushing block 46 is connected to one end of the pushing groove 45 by an elastic rope 47.

[0043] During the rotation of the upper roller 4, the upper roller 4 will drive the axial seat 42 on the outer wall to rotate synchronously. The axial seat 42 will drive the push block 46 to move. In the initial state, the push block 46 protrudes from the groove of the push groove 45. During the contact between the push block 46 and the waterproof membrane, the push block 46 will generate static friction with the waterproof membrane. The push block 46 is slidably connected to the push groove 45. The bottom of the left and right push grooves 45 is inclined in opposite directions. The depth of the left and right push grooves 45 becomes shallower as it approaches the middle of the upper roller 4. During the contact between the left and right push blocks 46 and the waterproof membrane, the two push blocks 46 will slide along the bottom of the inclined push groove 45. The left and right push blocks 46 will overcome the corresponding elastic ropes 47 and move away from each other. Thus, the push block 46 uses static friction to push the edge of the waterproof membrane to the left and right, so as to achieve the purpose of spreading the waterproof membrane and making the waterproof membrane flatter before penetration testing.

[0044] The contact point between the push block 46 and the waterproof membrane is near the edge of the waterproof membrane, making it easier to unfold. Additionally, the lower roller 3 can also have the same structure as the upper roller 4, further improving the unfolding of the waterproof membrane. Furthermore, a fourth motor can be fixedly connected to the adapting block 171, driving the upper roller 4 independently. This ensures that the push block 46 on the upper roller 4 corresponds to the push block 46 on the lower roller 3 across the waterproof membrane, further agitating and unfolding the waterproof membrane. As the upper roller 4 rotates, the push block 46 disengages from the waterproof membrane, and the elastic rope 47 pulls the push block 46 back to its original position and extends it out of the push groove 45. To allow waterproof membranes of different widths to be moved, the second bolt 44 can be loosened, causing it to disengage from the bottom of the axial groove 41, thus unlocking the axial seat 42. The axial seat 42 can then be moved to slide within the axial groove 41, changing its position in the left-right direction. Finally, the second bolt 44 can be tightened. The dimensions of the axial seat 42 and the axial groove 41 increase as they approach the central axis of the upper rotating roller 4, so the axial seat 42 will not disengage from the axial groove 41 radially along the upper rotating roller 4, thus locking the axial seat 42 within the axial groove 41. An isosceles trapezoidal strip protrudes from the bottom of the push groove 45, and the isosceles trapezoidal strip is slidably connected to the bottom of the push block 46.

[0045] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproofing testing device for building construction, comprising a testing box and a support bracket connected to the bottom of the testing box; the main body of the testing box is cylindrical; the front and rear ends of the testing box extend outward and are configured as openings; a pipe joint is provided at the bottom of the testing box; characterized in that: The detection chamber has left-turning blocks and right-turning blocks on its left and right inner walls, respectively; the detection cylinder inside the detection chamber is rotatably connected to the left-turning block at its left end; a cylindrical groove is provided at the right end of the detection cylinder; a cylindrical pump is rotatably and sealed within the cylindrical groove; the air inlet of the cylindrical pump has a downward-facing, fan-shaped opening, and the air outlet of the cylindrical pump is fixedly connected to the right-turning block; a main motor is fixedly connected to the left side of the left-turning block; the output shaft of the main motor is fixedly connected to the left end of the detection cylinder; an annular detection groove is provided inside the detection cylinder near its edge; the inner wall of the detection groove... The test chamber is uniformly and fixedly connected along the circumference; the test groove is divided into multiple independent test chambers by the partitions; the outer inner wall of the test groove is connected to the arc-shaped outer surface of the test cylinder through a test hole; the inner inner wall of the test groove is connected to the arc-shaped inner wall of the cylindrical groove through a negative pressure hole; the lower rotating roller is rotatably connected to the inner side of the front and rear ends of the test box; the lower rotating roller is driven by an auxiliary motor; an upper rotating roller is rotatably provided above the lower rotating roller; the waterproof membrane to be tested passes over the lower surface of the test cylinder from back to front; a camera is fixedly connected to the inner wall of the test box at the position where the waterproof membrane leaves the test cylinder.

2. The building construction waterproofing testing device according to claim 1, characterized in that: The arc length of the air inlet end of the cylindrical pump corresponding to the arc-shaped outer wall of the detection cylinder is less than the arc length of the contact between the detection cylinder and the waterproof membrane; at least one detection chamber inside the detection cylinder is submerged by the water surface in the detection box.

3. The building construction waterproofing testing device according to claim 1, characterized in that: The left and right inner walls of the testing box are connected to clamping rods; the outer walls of the clamping rods are rotatably connected to clamping rollers; multiple clamping rollers are distributed around the testing cylinder; the gap between the clamping rollers and the arc-shaped outer wall of the testing cylinder is adapted to the thickness of the waterproof membrane to be tested.

4. The building construction waterproofing testing device according to claim 3, characterized in that: The left and right inner walls of the testing box are provided with clamping grooves; one end of the clamping groove is close to the testing cylinder, and the other end is away from the testing cylinder; the end of the clamping rod is slidably connected in the clamping groove; the outer wall of the clamping rod away from the testing cylinder is connected to the end of the clamping groove away from the testing cylinder by a first spring.

5. The building construction waterproofing testing device according to claim 3, characterized in that: The top of the testing box is open; the left and right sides of the testing box are respectively provided with a left groove and a right groove; the left rotating block is slidably connected to the left groove, and the lower surface of the left rotating block is connected to the lower end of the left groove by a left electric push rod; the right rotating block is slidably connected to the right groove, and the lower surface of the right rotating block is connected to the lower end of the right groove by a right electric push rod.

6. The building construction waterproofing testing device according to claim 1, characterized in that: The inner wall of the middle section of the detection chamber is connected to the inner wall of the cylindrical groove through a negative pressure hole; the detection chamber is slidably and sealingly connected to the adjustment plate on the left and right sides; the inner walls of the left and right sides of the detection chamber are rotatably connected to the screw; the screw passes through the two adjustment plates and is threadedly and sealingly connected to the adjustment plates; the threads at both ends of the screw are arranged in opposite directions.

7. A building construction waterproofing testing device according to claim 6, characterized in that: An annular adjustment groove is provided on the left side of the detection cylinder; an external gear ring is rotatably connected to the inner edge of the adjustment groove; the left end of the screw extends into the adjustment groove; a gear that meshes with the external gear ring is fixedly connected to the left end of the screw; the external gear ring is threaded through and connected to the first bolt.

8. The building construction waterproofing testing device according to claim 7, characterized in that: The inner walls of the front and rear ends of the testing box are vertically provided with adaptation grooves; adaptation blocks are slidably connected to the adaptation grooves; the upper surface of the adaptation blocks is connected to the upper inner wall of the adaptation grooves by a second spring; the end of the upper rotating roller is rotatably connected to the adaptation blocks.

9. A building construction waterproofing testing device according to claim 8, characterized in that: A square rod is fixedly connected to the inner sides of the front and rear ends of the detection box along the left and right direction; the square rod is slidably connected to a limiting plate; the adjusting plate is made of magnetic material and can magnetically attract the limiting plate.

10. A building construction waterproofing testing device according to claim 1, characterized in that: The outer wall of the upper rotating roller is provided with an axial groove along the axial direction; multiple axial grooves are evenly distributed around the circumference of the upper rotating roller; two axial seats are slidably connected in the axial groove; the axial seats are provided with a stepped hole through them; a second bolt is threaded into the stepped hole; a pushing groove is provided on the outer wall of the axial seat; the depth of one end of the pushing groove is shallower than that of the other end; the bottom of the pushing groove is inclined; a pushing block is slidably connected to the bottom of the pushing groove; the pushing block is connected to one end of the pushing groove by an elastic rope.

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