Siphon drainage device for a slope and method of use thereof

By using a siphon drainage device to create negative pressure in the rainwater hopper, the water in the collection pit is automatically discharged into the drainage pit, solving the problem of difficult drainage of the slope collection pit by electricity and realizing a safe and economical drainage solution.

CN120797713BActive Publication Date: 2026-07-21CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-21

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Abstract

This invention relates to the field of water conservancy engineering, specifically to a siphon drainage device for slopes and its usage method. It includes: a first siphon pipe fixed to the slope, with its lower end located in a drainage pit and its upper end located in a collection pit; a rainwater hopper installed on the slope; and a second siphon pipe, with its upper end extending into the rainwater hopper and its lower end connected to the first siphon pipe. When the water in the rainwater hopper submerges the second siphon pipe, the water in the rainwater hopper flows through the second siphon pipe into the first siphon pipe and continues downward into the drainage pit. As the water flows within the first siphon pipe, a negative pressure is created in the upper half of the first siphon pipe, thereby drawing water from the collection pit into the first siphon pipe and discharging it into the drainage pit. Beneficial effects: By installing a rainwater hopper and a second siphon pipe, when the water in the rainwater hopper submerges the second siphon pipe, the water flows through the second siphon pipe into the first siphon pipe, creating negative pressure in the upper half of the first siphon pipe. This forces the water in the collection pit into the first siphon pipe and then into the drainage pit. This achieves operation without the need for electrical control or excessive human intervention, avoiding the difficulties of installing electrical equipment and subsequent maintenance.
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Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering, and specifically to a siphon drainage device for slopes and its usage method. Background Technology

[0002] In actual engineering environments, there are different rock and soil slope treatment projects with heights of 30m, 45m, 60m, 75m, and 100m. Due to the influence of complex geological conditions such as rock, soil, and karst caves, the slope surface may experience water accumulation and drainage due to heavy rainfall and water seepage. These issues are important problems that need to be addressed.

[0003] On the other hand, slope sump pits caused by heavy rainfall and water seepage often exist in remote locations at high altitudes, making manual patrols difficult and the installation and maintenance of electrical drainage systems challenging. The installation of secondary and tertiary electrical boxes and water pumps not only consumes electricity, manpower, and material resources, but also poses risks of landslides, falls from heights, electrical leaks, and pump overload shutdowns during heavy rain. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a siphon drainage device for slopes and its usage method, solving the problem that existing drainage of water collection pits on slopes requires electric power and is difficult to install and maintain.

[0005] The technical solution to achieve the above objectives is:

[0006] This invention provides a siphon drainage device for slopes, used to drain water from a collection pit on a slope platform into a drainage pit. The siphon drainage device includes:

[0007] A first siphon pipe is fixed to the slope, with its lower end located in a drainage pit and its upper end located in a water collection pit;

[0008] Rainwater hoppers installed on the slope;

[0009] The second siphon has its upper end extending into the rainwater hopper and its lower end connected to the first siphon. When the water in the rainwater hopper submerges the second siphon, the water in the rainwater hopper flows through the second siphon into the first siphon and continues to flow downwards into the drainage pit below. When the water flows in the first siphon, it creates a negative pressure in the upper half of the first siphon, thereby drawing the water in the collection pit into the first siphon and discharging it into the drainage pit.

[0010] Furthermore, the rainwater hopper includes a rainwater hopper body and two support mechanisms, which are fixed at intervals on the slope. The rainwater hopper body is installed on the support mechanisms at an adjustable angle so that the rainwater hopper can adapt to slopes with different inclination angles.

[0011] Furthermore, the support mechanism includes:

[0012] A fixing plate is used to fix the slope.

[0013] A support frame is fixedly sleeved on the rainwater hopper body, and a support rod is fixedly provided at the lower end of the support frame. The support rod is hinged to the lower end of the fixed plate.

[0014] An adjusting rod is hinged at one end to the upper end of the fixed plate and movably connected to the upper end of the support frame. The angle between the support frame and the fixed plate can be adjusted by adjusting the connection position between the adjusting rod and the support frame.

[0015] Furthermore, the upper end of the support frame is fixedly provided with two clamping plates at a distance, the adjusting rod is located between the two clamping plates, and it also includes a limiting rod. The limiting rod passes through the two clamping plates and its vertical position is adjustable, so that the limiting rod fixes the adjusting rod between the two clamping plates.

[0016] Furthermore, a slot is provided on one side of the fixing plate, which is used to lock onto the grid beam of the slope.

[0017] Furthermore, the second siphon extends into the rainwater hopper by passing through one side of the hopper, so that the rainwater in the hopper submerges the second siphon before overflowing.

[0018] The present invention also provides a method for using a siphon drainage device for slopes, specifically including the following steps:

[0019] Provide the siphon drainage device as described above;

[0020] The first siphon pipe is fixed on the slope, and the upper end of the first siphon pipe is inserted into the water collection pit, and the lower end is inserted into the drainage pit.

[0021] Fix the rainwater hopper to the slope, extend the upper end of the second siphon pipe into the rainwater hopper, and connect the lower end of the second siphon pipe to the first siphon pipe.

[0022] Furthermore, the rainwater hopper includes a support mechanism and a rainwater hopper body, and the angle between the rainwater hopper body and the support mechanism can be adjusted. When installing the rainwater hopper, the support mechanism is fixed on the slope, and the angle between the rainwater hopper body and the support mechanism is adjusted so that the opening of the rainwater hopper body faces upward and remains horizontal.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] By installing a rainwater hopper and a second siphon pipe, when the water in the rainwater hopper submerges the second siphon pipe, the water flows through the second siphon pipe into the first siphon pipe. This creates a negative pressure in the upper half of the first siphon pipe, causing the water in the collection pit to enter the first siphon pipe and flow into the drainage pit. This achieves operation without the need for electrical control or excessive human intervention, avoiding the problems of installing electrical equipment and subsequent maintenance difficulties. Attached Figure Description

[0025] Figure 1 This is a schematic diagram showing the usage of the siphon drainage device for slopes according to the present invention.

[0026] Figure 2 This is a schematic diagram of the rainwater hopper and the second siphon pipe structure of the siphon drainage device for slopes according to the present invention.

[0027] Figure 3 This is a side sectional view of the rainwater hopper of the siphon drainage device for slopes according to the present invention.

[0028] Figure 4 This is a side sectional view of the rainwater hopper and the second siphon pipe of the siphon drainage device for slopes according to the present invention.

[0029] Figure 5 This is a schematic diagram of the clamping plate and limiting plate structure of the siphon drainage device for slopes according to the present invention.

[0030] Legend: 1. Slope; 2. Sump; 3. Rainwater hopper; 31. Support mechanism; 311. Fixing plate; 312. Support frame; 313. Support rod; 314. Adjusting rod; 315. Clamping plate; 316. Limiting rod; 32. Rainwater hopper body; 4. Second siphon pipe; 5. First siphon pipe; 6. Drainage pit. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] See Figure 1 This invention provides a siphon drainage device for slopes and its usage method, solving the problem that existing methods for draining slope sump pits require electricity, making installation and maintenance difficult. By setting up a rainwater hopper and a second siphon pipe, when the water in the rainwater hopper submerges the second siphon pipe, water flows through the second siphon pipe into the first siphon pipe, creating negative pressure in the upper half of the first siphon pipe. This forces water from the sump pit into the first siphon pipe and then into the drainage pit. This achieves drainage without the need for electrical control or excessive human intervention, avoiding the difficulties of installing electrical equipment and subsequent maintenance.

[0033] The following description, in conjunction with the accompanying drawings, illustrates a siphon drainage device for slopes and its usage method according to the present invention.

[0034] See Figure 1 This diagram illustrates the operational status of the siphon drainage device for slopes according to the present invention. (See attached diagram.) Figure 2 This image shows a schematic diagram of the rainwater hopper and the second siphon pipe structure of the siphon drainage device for slopes according to the present invention. The following is in conjunction with... Figure 1 and Figure 2 This invention describes a siphon drainage device for slopes and its usage method.

[0035] like Figure 1 and Figure 2 As shown, the present invention provides a siphon drainage device for slopes, used to drain water from a collection pit 2 on a slope platform into a drainage pit 6. The siphon drainage device includes: a first siphon pipe 5 fixed to the slope 1, the lower end of the first siphon pipe 5 being located in the drainage pit 6 and the upper end being located in the collection pit 2; a rainwater hopper 3 disposed on the slope 1; and a second siphon pipe 4, the upper end of the second siphon pipe 4 extending into the rainwater hopper 3 and the lower end connected to the first siphon pipe 5. When the water in the rainwater hopper 3 submerges the second siphon pipe 4, the water in the rainwater hopper 3 flows into the first siphon pipe 5 through the second siphon pipe 4 and continues to flow downward into the drainage pit 6 below. When the water flows in the first siphon pipe 5, a negative pressure is formed in the upper half of the first siphon pipe 5, thereby drawing water from the collection pit 2 into the first siphon pipe 5 and draining it into the drainage pit 6.

[0036] Specifically, the first siphon pipe 5 includes an inclined section and a horizontal section, the rainwater hopper 3 is disposed in the inclined section of the first siphon pipe 5, and the lower end of the second siphon pipe 4 is connected to the inclined section of the first siphon pipe 5.

[0037] like Figure 3 and Figure 4 As shown, in one specific embodiment, the rainwater hopper 3 includes a rainwater hopper body 32 and two support mechanisms 31. The two support mechanisms 31 are fixed at intervals on the slope 1, and the rainwater hopper body 32 is installed on the support mechanism 31 at an adjustable angle so that the rainwater hopper 3 can adapt to slopes 1 with different inclination angles.

[0038] Specifically, the lower end of the first siphon pipe 5 is higher than the height of the drainage pit 6, thereby preventing the water in the drainage pit 6 from clogging the lower end of the first siphon pipe 5.

[0039] In one specific embodiment, the support mechanism 31 includes: a fixed plate 311, fixed to the slope 1; a support frame 312, fixedly sleeved on the rainwater hopper body 32, with a support rod 313 fixedly provided at the lower end of the support frame 312, the support rod 313 being hinged to the lower end of the fixed plate 311; and an adjusting rod 314, one end of which is hinged to the upper end of the fixed plate 311, and the other end being movably connected to the upper end of the support frame 312. By adjusting the connection position between the adjusting rod 314 and the support frame 312, the angle between the support frame 312 and the fixed plate 311 can be adjusted.

[0040] like Figure 5 As shown, in one specific embodiment, the upper end of the support frame 312 is fixedly provided with two clamping plates 315 at a distance, the adjusting rod 314 is disposed between the two clamping plates 315, and it also includes a limiting rod 316. The limiting rod 316 passes through the two clamping plates 315 and its vertical position is adjustable, so that the limiting rod 316 fixes the adjusting rod 314 between the two clamping plates 315.

[0041] Specifically, the limiting rod 316 is a screw rod with nuts at both ends. Tightening the nuts fixes the screw rod on the clamping plate 315, thereby pressing down the adjusting rod 314 and fixing it between the two clamping plates 315. The threads at both ends of the screw rod turn in opposite directions, causing the two nuts to rotate in different directions. The surface of the adjusting rod 314 has textures to increase the friction between it and the screw rod 316.

[0042] In one specific embodiment, a slot is provided on one side of the fixing plate 311, which is used to be engaged with the lattice beam of the slope 1.

[0043] In one specific embodiment, the second siphon 4 extends into the rainwater hopper 3 by passing through one side of the rainwater hopper 3, so that the second siphon 4 is submerged before the rainwater in the rainwater hopper 3 overflows.

[0044] Specifically, the cross-section of the rainwater hopper body 32 is triangular, and it is made of two triangular plates and two rectangular plates spliced ​​together. The two rectangular plates are connected between the two triangular plates, and the lower ends of the two rectangular plates are connected, so that the opening of the rainwater hopper body 32 faces upward, thus forming a container that can hold water.

[0045] Preferably, the two triangular plates are made of glass, allowing personnel to easily observe the water level inside the rainwater hopper body 32 through the glass plates on both sides. A drain hole is provided at the bottom of the rainwater hopper body 32, and a valve is installed inside the drain hole. By opening the valve, the water inside the rainwater hopper body 32 is completely drained through the drain hole, thus facilitating cleaning of the rainwater hopper body 32.

[0046] The present invention also provides a method of using a siphon drainage device for slopes, specifically including the following steps: providing the siphon drainage device as described above; fixing the first siphon pipe 5 to the slope 1, extending the upper end of the first siphon pipe 5 into the water collection pit 2, and extending the lower end into the drainage pit 6; fixing the rainwater hopper 3 to the slope 1, extending the upper end of the second siphon pipe 4 into the rainwater hopper 3, and connecting the lower end of the second siphon pipe 4 to the first siphon pipe 5.

[0047] In one specific embodiment, the rainwater hopper 3 includes a support mechanism 31 and a rainwater hopper body 32, and the angle between the rainwater hopper body 32 and the support mechanism 31 can be adjusted. When installing the rainwater hopper 3, the support mechanism 31 is fixed on the slope 1, and the angle between the rainwater hopper body 32 and the support mechanism 31 is adjusted so that the opening of the rainwater hopper body 32 faces upward and remains horizontal.

[0048] The following is a detailed description of the usage process and working principle of a siphon drainage device for slopes according to the present invention.

[0049] The first siphon pipe 5 is fixed on the slope 1, and the upper end of the first siphon pipe 5 extends into the water collection pit 2, so that the lower end of the first siphon pipe 5 is located above the drainage pit 6.

[0050] Secure the slot of the fixing plate 311 onto the lattice beam of the slope 1, then rotate the rainwater hopper body 32 so that the opening of the rainwater hopper 32 faces upward and remains horizontal, then move the limiting rod 316 downward so that the limiting rod 316 presses down the adjusting rod 314, and tighten the nuts at both ends of the limiting rod 316 to fix the limiting rod 316 and the adjusting rod 314.

[0051] The upper end of the second siphon pipe 4 passes through one side of the rainwater hopper body 32 and extends into it, while the lower end is connected to the first siphon pipe 5.

[0052] Working principle: During use, rainwater falls into the rainwater hopper body 32 and the collection pit 2. The water level in the rainwater hopper body 32 gradually rises. When the water submerges the second siphon pipe 4, the water in the rainwater hopper body 32 flows from the second siphon pipe 4 into the first siphon pipe 5, and then flows downward into the drainage pit 6 under the action of gravity. When the water flows in the first siphon pipe 5, it creates a negative pressure in the upper half of the first siphon pipe 5, causing the water in the collection pit 2 to flow into the first siphon pipe 5, and further into the drainage pit 6.

[0053] When the water level in the rainwater hopper body 32 drops to the same height as the inlet height at the upper end of the second siphon pipe 4, the water in the rainwater hopper body 32 stops flowing into the second siphon pipe 4. Similarly, when the water level in the collection pit 2 drops to the same height as the inlet height at the upper end of the first siphon pipe 5, the water in the collection pit 2 stops flowing into the first siphon pipe 5.

[0054] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A siphon drainage device for slopes, used to drain water from a collection pit (2) on a slope platform into a drainage pit (6), characterized in that: The siphon drainage device includes: The first siphon pipe (5) is fixed to the slope (1), with its lower end located in the drainage pit (6) and its upper end located in the water collection pit (2); Rainwater hopper (3) is installed on the slope (1); The second siphon (4) has its upper end extending into the rainwater hopper (3) and its lower end connected to the first siphon (5). When the water in the rainwater hopper (3) submerges the second siphon (4), the water in the rainwater hopper (3) flows into the first siphon (5) through the second siphon (4) and continues to flow downward into the drainage pit (6) below. When the water flows in the first siphon (5), it creates a negative pressure in the upper half of the first siphon (5), thereby drawing the water in the water collection pit (2) into the first siphon (5) and discharging it into the drainage pit (6). The first siphon tube includes an inclined section and a horizontal section. The rainwater hopper is located in the inclined section of the first siphon tube, and the lower end of the second siphon tube is connected to the inclined section of the first siphon tube. The rainwater hopper (3) includes a rainwater hopper body (32) and two support mechanisms (31). The two support mechanisms (31) are fixed at intervals on the slope (1), and the rainwater hopper body (32) is installed on the support mechanism (31) at an adjustable angle so that the rainwater hopper (3) can adapt to slopes (1) with different inclination angles. The support mechanism (31) includes: A fixing plate (311) is fixed to the slope (1); A support frame (312) is fixedly sleeved on the rainwater hopper body (32), and a support rod (313) is fixedly provided at the lower end of the support frame (312). The support rod (313) is hinged to the lower end of the fixing plate (311). The adjusting rod (314) is hinged at one end to the upper end of the fixed plate (311) and movably connected at the other end to the upper end of the support frame (312). By adjusting the connection position between the adjusting rod (314) and the support frame (312), the angle between the support frame (312) and the fixed plate (311) can be adjusted. The upper end of the support frame (312) is fixedly provided with two clamping plates (315) at intervals. The adjusting rod (314) is located between the two clamping plates (315). It also includes a limiting rod (316). The limiting rod (316) passes through the two clamping plates (315) and its vertical position is adjustable so that the limiting rod (316) fixes the adjusting rod (314) between the two clamping plates (315). A slot is provided on one side of the fixing plate (311), which is used to be locked onto the lattice beam of the slope (1); The second siphon (4) extends into the rainwater hopper (3) by passing through one side of the rainwater hopper (3) so that the rainwater in the rainwater hopper (3) is submerged before it overflows.

2. A method of using a siphon drainage device for slopes, characterized in that: Specifically, the steps include the following: Provide the siphon drainage device as described in claim 1; The first siphon pipe (5) is fixed on the slope (1), and the upper end of the first siphon pipe (5) is inserted into the water collection pit (2), and the lower end is inserted into the drainage pit (6); Fix the rainwater hopper (3) on the slope (1), and extend the upper end of the second siphon pipe (4) into the rainwater hopper (3), and connect the lower end of the second siphon pipe (4) to the first siphon pipe (5).

3. The method of using a siphon drainage device for slopes according to claim 2, characterized in that: The rainwater hopper (3) includes a support mechanism (31) and a rainwater hopper body (32). The angle between the rainwater hopper body (32) and the support mechanism (31) can be adjusted. When installing the rainwater hopper (3), the support mechanism (31) is fixed on the slope (1), and the angle between the rainwater hopper body (32) and the support mechanism (31) is adjusted so that the opening of the rainwater hopper body (32) faces upward and remains horizontal.