A portable drainage device for roof waterproofing testing

Abstract

This utility model discloses a convenient drainage device for roof waterproofing testing, mainly relating to the field of roof drainage. It includes a drainage pipe with an inlet and an outlet at each end, the outlet being lower than the inlet. A branch pipe runs through the middle of the drainage pipe, and an air intake / exhaust assembly is connected to the branch pipe. Check valves are installed on both sides of the branch pipe inside the drainage pipe, allowing water to flow only from the inlet to the outlet. The advantages of this utility model are: it solves the technical problem of inconvenient drainage after initial roof waterproofing during existing building construction, improves drainage convenience, reduces labor costs, reduces reliance on electricity, and greatly improves drainage efficiency and convenience.

Description

Technical Field

[0001] This utility model relates to the field of roof drainage, specifically a convenient drainage device for roof waterproofing testing. Background Technology

[0002] During the current construction phase of the main structure of the project, some areas have water storage areas. Due to the complex and changeable site conditions, water accumulation in low-lying areas may affect concrete pouring, waterproofing construction, and subsequent operations. In some areas, due to limited space, humid environment, non-standard temporary power supply, lack of stable power supply, areas without formal power supply, or temporary power outages, electric pumps are not suitable but drainage is urgently needed. Manual drainage (such as scooping water with buckets) is extremely inefficient (approximately 0.5~1m³ / h) and labor-intensive, which cannot meet the construction schedule requirements.

[0003] Currently, during the water retention process on the roof for waterproofing testing at the construction site, the drains are set too high after the first layer of waterproofing, making drainage inconvenient. Furthermore, the roof is enclosed on all sides, resulting in a large water volume and tight drainage time. Manual drainage is costly: for a residential roof area of ​​approximately 450㎡, with a water height of 15cm, manual drainage efficiency is about 0.5~1m³ / h, requiring an estimated 8.5~17 manpower per roof. Mechanical drainage is not feasible because the roof is not yet officially electrified, connection is time-consuming and labor-intensive, and transporting the pumps takes up significant time. Therefore, electric pumps are unsuitable. Thus, there is an urgent need for a lightweight, electricity-free drainage device suitable for complex environments. Utility Model Content

[0004] The purpose of this utility model is to provide a convenient drainage device for roof waterproofing testing. It can solve the technical problem of inconvenient drainage after the initial waterproofing of the roof during existing building construction, improve the convenience of drainage, reduce labor consumption, reduce dependence on electricity, and greatly improve the efficiency and convenience of drainage.

[0005] To achieve the above objectives, this utility model employs the following technical solution: A convenient drainage device for roof waterproofing testing includes a drainage pipe with an inlet and an outlet at both ends. The outlet is lower than the inlet. A branch pipe is connected in the middle of the drainage pipe, and an air intake and exhaust assembly is connected to the branch pipe. Check valves are installed on both sides of the branch pipe inside the drainage pipe, and the check valves only allow water to flow from the inlet to the outlet.

[0006] Furthermore, the intake and exhaust assembly is a compressed air bag.

[0007] Furthermore, the intake and exhaust assembly includes an air cylinder connected to a branch pipe, a piston is slidably connected vertically inside the air cylinder, a piston rod is provided on the piston, and a handle is provided at the top of the piston rod.

[0008] Furthermore, a support is provided at the bottom of the air cylinder.

[0009] Furthermore, a foot pedal is provided at the bottom of the bracket.

[0010] Furthermore, a support plate is provided at the water inlet.

[0011] Furthermore, both the inlet and outlet are equipped with filter screens.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The structure of this utility model is provided with a connecting branch pipe on the drain pipe, and a suction and air release assembly is connected to the branch pipe. Check valves are provided on both sides of the branch pipe inside the drain pipe. The check valves only allow water to flow from the inlet to the outlet. In use, the inlet of the drain pipe is placed at the bottom of the water accumulation. The outlet extends outward after passing through the drainage position of the roof side wall, so that the height of the outlet is lower than the height of the inlet. At this time, the suction and air release assembly is used to release air. The check valve on the inlet side is closed and the check valve on the outlet side is opened, thereby venting the air in the drain pipe from the outlet. Then, the suction and air release assembly is used to draw in air. At this time, the check valve on the outlet side is closed and the check valve on the inlet side is opened, allowing the water to enter the drain pipe from the inlet. After repeating this process several times, the water flow fills the drain pipe. Under the action of siphon, the water on the roof automatically flows towards the lower outlet, realizing the automatic drainage of water on the roof. The structure is simple, the operation is convenient, and the drainage efficiency and convenience are greatly improved. 2. During the drainage process, operators only need to perform multiple suction and venting operations on the suction and venting components in the early stage. After that, the accumulated water can be automatically discharged towards the lower outlet under the action of siphon, which greatly reduces manual labor. It does not rely on electricity and can be reused in various construction areas that are not officially powered, further improving the convenience of drainage and adaptability to complex environments. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Appendix Figure 2 This is a schematic diagram of the structure of this utility model.

[0015] The labels shown in the attached diagram: 1. Drain pipe; 2. Inlet; 3. Outlet; 4. Branch pipe; 5. Check valve; 6. Compressor; 7. Air cylinder; 8. Piston; 9. Piston rod; 10. Handle; 11. Bracket; 12. Foot pedal; 13. Support plate; 14. Filter screen. Detailed Implementation

[0016] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0017] Reference Figure 1 and Figure 2This utility model describes a convenient drainage device for roof waterproofing testing. The main structure includes a drainage pipe 1. After initial waterproofing construction on the roof, water needs to be stored for testing. At this time, the roof height is relatively low, and the drainage position on the roof sidewall is relatively high, making passive drainage difficult. Manual active drainage is generally required. The drainage pipe 1 has an inlet 2 and an outlet 3 at both ends. In use, the inlet 2 of the drainage pipe 1 is placed at the bottom of the accumulated water, and the outlet 3 extends outward through the drainage position on the roof sidewall, ensuring that the height of the outlet 3 is lower than the height of the inlet 2. The drain pipe 1 has a connecting branch pipe 4 in the middle, which is connected to the drain pipe 1 via a tee pipe. An air intake / exhaust assembly is connected to the branch pipe 4, which can perform air intake or exhaust operations. The specific structure can adopt any existing structure capable of performing air intake / exhaust operations. Check valves 5 are installed inside the drain pipe 1 on both sides of the branch pipe 4. The check valves 5 only allow water to flow from the inlet 2 to the outlet 3, allowing only unidirectional water flow. Specifically, a PPR20 model manufactured by Yuhuan Water Shield HVAC Technology Co., Ltd. can be used. The horizontal check valve ensures that water can flow only from inlet 2 to outlet 3. In practical use, first place inlet 2 of drain pipe 1 at the bottom of the accumulated water. Outlet 3 extends to the outside after passing through the drainage point on the roof side wall, making the height of outlet 3 lower than that of inlet 2. Then, use the air intake / exhaust assembly to vent air. At this time, check valve 5 on the outlet 3 side opens, and check valve 5 on the inlet 2 side closes, allowing the air in drain pipe 1 to escape from outlet 3. Then, use the air intake / exhaust assembly to draw in air. At this time, check valve 5 on the outlet 3 side closes, and check valve 5 on the inlet 2 side closes. Valve 5 is opened, allowing water to enter the drain pipe 1 from the inlet 2 and be discharged during the venting operation. This process is repeated multiple times, allowing water to gradually enter and fill the drain pipe 1. Subsequently, under the siphon effect, the water automatically flows towards the lower outlet 3, achieving automatic discharge. Only multiple venting and venting operations are required from the operator in the early stages, greatly reducing labor costs. It does not rely on electricity, has a simple structure, is easy to operate, and can be applied to different construction environments, greatly improving drainage efficiency and convenience, and enhancing adaptability to different construction environments.

[0018] Preferably, the air intake and exhaust assembly is a compression airbag 6. The compression airbag 6 can automatically reset after compression. When the operator holds the compression airbag 6 and presses it, the compression airbag 6 is compressed to exhaust air. After releasing, the compression airbag 6 automatically resets upward to intake air. The structure is simple, which further simplifies the operator's air intake and exhaust operation steps and improves the convenience of operation.

[0019] Preferably, the air intake and exhaust assembly includes an air cylinder 7 connected to the branch pipe 4. The air cylinder 7 is made of metal or glass, and its bottom is connected to the branch pipe 4. A piston 8 is vertically slidably connected inside the air cylinder 7. The piston 8 slides and seals against the side wall of the air cylinder 7, so that the piston 8 can accurately perform air intake and exhaust operations on the branch pipe 4 when it moves up and down. A piston rod 9 is fixed to the piston 8 by insertion or bolts. A handle 10 is fixed to the top of the piston rod 9 by welding or integral molding. With this structure, the operator only needs to move the handle 10 up and down to drive the piston 8 to slide up and down inside the air cylinder 7 under the connection of the piston rod 9, so as to realize the rapid air intake and exhaust operation of the branch pipe 4 and the drain pipe 1, which makes the air intake and exhaust operation more airtight and smoother.

[0020] Preferably, the bottom of the air cylinder 7 is fixed with a bracket 11 by welding or bolts. With this structure, the bottom of the bracket 11 is placed on the roof or temporarily fixed to the roof with bolts, so that the bottom of the air cylinder 7 is better supported by the bracket 11, which improves the convenience of operation for operators and improves the stability of the air intake and exhaust components.

[0021] Preferably, the bottom of the bracket 11 is fixed with a foot pedal 12 by welding or integral molding. When the bracket 11 is placed on the roof, the foot pedal 12 is stepped on to fix the bracket 11 firmly to the roof without the need for bolts or other fixings. This ensures the stability of the air cylinder 7 during the suction and exhaust operation, improves the convenience of subsequent disassembly and movement, and further improves the convenience of recycling the device.

[0022] Preferably, a support plate 13 is provided at the water inlet 2. The support plate 13 is made of a heavy material such as metal. Under the action of gravity, it can firmly fix the water inlet 2 to the bottom of the water accumulation, thereby preventing gas from entering after the water inlet 2 is exposed above the water surface, avoiding damage to the siphon effect of drainage, and ensuring the smoothness of drainage.

[0023] Preferably, both the inlet 2 and the outlet 3 are equipped with filter screens 14. The filter screens 14 can prevent large impurities such as leaves or gravel in the water from entering the drain pipe 1 and causing blockage, thus further ensuring the smoothness of drainage.

[0024] Working Principle: This invention features a branch pipe 4 connected to the drain pipe 1. A suction and air release assembly is connected to the branch pipe 4. Check valves 5 are installed on both sides of the branch pipe 4 inside the drain pipe 1. These check valves 5 only allow water to flow from the inlet 2 towards the outlet 3. In use, the inlet 2 of the drain pipe 1 is placed at the bottom of the accumulated water. The outlet 3 extends outwards after passing through the drainage point on the roof side wall, making its height lower than that of the inlet 2. At this point, the suction and air release assembly releases air. The check valve 5 on the inlet 2 side closes, while the check valve 5 on the outlet 3 side opens, allowing the gas in the drain pipe 1 to exit from the outlet 3. Then, the suction and air release assembly draws in air, and the air at the outlet 3 side... The check valve 5 is closed, and the check valve 5 on the inlet 2 side is opened, allowing the accumulated water to enter the drain pipe 1 from the inlet 2. After repeated cycles, the water fills the drain pipe 1. Under the action of siphon, the accumulated water on the roof automatically flows towards the lower outlet 3, realizing the automatic drainage of the roof water. The structure is simple and easy to operate, greatly improving the efficiency and convenience of drainage. During the drainage process, the operator only needs to perform multiple suction and air venting operations on the suction and air venting components in the early stage. After that, the accumulated water can be automatically discharged towards the lower outlet 3 under the action of siphon, greatly reducing manual labor. It does not rely on electricity and can be reused in various construction areas that are not officially powered, further improving the convenience of drainage and adaptability to complex environments.

Claims

1. A convenient drainage device for roof waterproofing testing, comprising a drainage pipe (1), characterized in that: The drain pipe (1) has an inlet (2) and an outlet (3) at its two ends respectively. The height of the outlet (3) is lower than that of the inlet (2). The drain pipe (1) has a connecting branch pipe (4) in the middle. The branch pipe (4) is connected to an air intake and exhaust assembly. The drain pipe (1) has check valves (5) on both sides of the branch pipe (4). The check valves (5) only allow water to flow from the inlet (2) toward the outlet (3).

2. The convenient drainage device for roof waterproofing testing according to claim 1, characterized in that: The intake and exhaust assembly is a compressed air bag (6).

3. The convenient drainage device for roof waterproofing testing according to claim 1, characterized in that: The intake and exhaust assembly includes an air cylinder (7) connected to the branch pipe (4), a piston (8) is slidably connected in the vertical direction inside the air cylinder (7), a piston rod (9) is provided on the piston (8), and a handle (10) is provided at the top of the piston rod (9).

4. A convenient drainage device for roof waterproofing testing according to claim 3, characterized in that: The bottom of the air cylinder (7) is provided with a support (11).

5. The portable drainage device for waterproof detection of roof according to claim 4, characterized in that: The bottom of the bracket (11) is provided with a foot pedal (12).

6. The portable drainage device for waterproof detection of a roof according to claim 1, wherein: A support plate (13) is provided at the water inlet (2).

7. The portable drainage device for waterproof detection of a roof according to claim 1, wherein: Both the inlet (2) and outlet (3) are equipped with filter screens (14).

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