Drainage device for a landscape water system
By using a buoyancy-type opening and closing mechanism and a filtration device in the garden landscape water system, the problems of complex structure, low efficiency and easy clogging of traditional drainage devices are solved, and the effects of automatic drainage control and protection of aquatic organisms are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG PINHONG GARDEN ENVIRONMENT ENG CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-23
Smart Images

Figure CN224395732U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage technology for garden landscape water systems, and in particular to a drainage device for garden landscape water systems. Background Technology
[0002] Currently, water features are a common element in landscape design, such as artificial lakes, streams, and fountains. These water systems require effective drainage systems to maintain water level stability and water quality during rainfall or water circulation regulation. Traditional drainage systems have the following drawbacks:
[0003] (1) Some drainage devices have complex structures, are inconvenient to install and maintain, and require a lot of manpower and resources to operate. This increases the cost of use in large-scale places with high landscape requirements, such as garden landscapes.
[0004] (2) Some drainage facilities are not efficient enough and cannot effectively drain excess water from the water system in a timely manner. Especially during rainstorms or when the water flow suddenly increases, drainage problems, water accumulation, or even overflow may occur, which can damage the ecological environment of the garden landscape and surrounding facilities.
[0005] (3) Insufficient consideration is given to the protection of aquatic organisms such as aquatic plants and landscape fish. During the drainage process, aquatic organisms are easily damaged or their living environment is affected by the violent fluctuations in water flow.
[0006] (4) The lack of effective leaf interception and anti-clogging function makes it easy for floating objects such as leaves to clog the inlet, reducing drainage efficiency.
[0007] In view of the above problems, it is necessary to design a drainage device for garden landscape water systems that is novel in structure, efficient in drainage, environmentally friendly and not prone to clogging. Utility Model Content
[0008] The purpose of this invention is to provide a drainage device for garden landscape water systems. A buoyancy-type opening and closing mechanism is installed in the drainage box, which can automatically control drainage according to the rising water level, improve drainage efficiency, effectively prevent water accumulation and overflow in the water system, and has a relatively simple structure, making it easy to install and maintain. It solves the problems mentioned in the background art to a certain extent.
[0009] To achieve the above objectives, the present invention adopts the following technical solution:
[0010] A drainage device for a garden landscape water system includes a hollow drainage box with an inlet and an outlet. Vertically arranged partitions divide the drainage box's interior into a front chamber and a rear chamber. The inlet is located on the upper side wall of the front chamber, and the outlet is located on the lower side wall of the rear chamber. A buoyancy-type opening and closing mechanism is movably installed within the drainage box. This mechanism includes a float, a connecting rod, and a valve plate. The float is located in the front chamber, and the valve plate is located in the rear chamber and slidably connected to the inner wall of the rear chamber. The two ends of the connecting rod are fixedly connected to the float and the valve plate, respectively. An annular limiting plate for supporting the valve plate is provided on the lower side wall of the rear chamber. The annular limiting plate is horizontally positioned above the outlet. The partition has a water passage hole and a guide groove located above the annular limiting plate, and the guide groove is slidably connected to the connecting rod.
[0011] Furthermore, the outer peripheral sidewall of the valve plate is provided with several guide ribs that slide and engage with the inner wall of the rear chamber, and a drainage channel is formed between two adjacent guide ribs.
[0012] Furthermore, the upper surface of the annular limiting plate is provided with a sealing gasket for abutting against the lower surface of the valve plate.
[0013] Furthermore, a counterweight is fixedly installed at the bottom of the float.
[0014] Furthermore, a limiting member is provided at the lower part of the front chamber, located below the float.
[0015] Furthermore, the water outlet is connected to a water outlet pipe, and the water outlet pipe is equipped with a one-way valve.
[0016] Furthermore, the inlet is connected to an upward-extending inlet pipe, and an upward-opening water collection hopper is provided at the end of the inlet pipe away from the drain tank. A filter device is provided at the opening of the water collection hopper, and the filter device includes a filter screen and an automatic scraping mechanism installed on the filter screen.
[0017] Furthermore, the filter screen is a stainless steel screen with evenly distributed circular mesh holes. The outer periphery of the filter screen is provided with a ring-shaped fixed edge, and the fixed edge is provided with a convex ring. The outer wall of the opening of the water collection hopper is provided with a groove that is correspondingly engaged with the convex ring.
[0018] Furthermore, the automatic scraping mechanism includes a propeller, a rotating shaft, a fixed block, and a rotating arm. The filter screen is provided with a bearing seat in the middle, the rotating shaft is rotatably connected to the bearing seat through a bearing, the upper end of the rotating shaft is fixedly connected to the fixed block, the rotating arm is horizontally distributed and connected to the fixed block, the lower surface of the rotating arm is provided with bristles that abut against the filter screen, and the lower end of the rotating shaft extends between the water collection hopper and the water inlet pipe and is fixedly connected to the propeller.
[0019] Furthermore, the water inlet is provided with a fine filtration assembly, which includes a filter plate made of activated carbon fiber felt and an outer frame distributed around the filter plate. The inner wall of the front chamber is provided with an inlet groove for slidingly embedding the fine filtration assembly.
[0020] Compared with the prior art, this utility model provides a drainage device for garden landscape water systems, which has the following beneficial effects:
[0021] A buoyancy-type opening and closing mechanism is installed in the drainage tank. Through the cooperation of the float, connecting rod, valve plate and counterweight, water in the front chamber is automatically introduced into the rear chamber and discharged. This allows for automatic control of drainage based on the rising water level, improving drainage efficiency and stability, and effectively preventing water accumulation and overflow in the water system.
[0022] The filter device can effectively intercept floating objects such as leaves on the water surface, preventing them from clogging the water inlet. At the same time, it can also intercept and protect aquatic organisms such as aquatic plants and ornamental fish, preventing them from being discharged or damaged during the drainage process.
[0023] With its simple structure and convenient installation and maintenance, it reduces the cost of use and is easy to apply in garden landscapes. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0026] Figure 2 This is a schematic diagram of the present invention in the closed state;
[0027] Figure 3 A schematic diagram of the assembly of the opening and closing mechanism for buoyancy;
[0028] Figure 4 This is a schematic diagram of the filter device installation.
[0029] Figure 5 This is a schematic diagram of the assembly of the automatic scraping mechanism;
[0030] Figure 6 This is a schematic diagram of the present invention in the drain state.
[0031] Reference numerals: 1. Drainage tank; 11. Partition plate; 111. Water passage hole; 112. Guide groove hole; 12. Front chamber; 13. Rear chamber; 14. Inlet; 15. Outlet; 16. Annular limiting plate; 17. Limiting component; 18. Inlet groove; 19. Cover plate; 2. Buoyancy-type opening and closing mechanism; 21. Float; 22. Connecting rod; 23. Valve plate; 231. Guide rib; 232. Drainage channel; 2 4. Counterweight; 3. Sealing gasket; 4. Outlet pipe; 5. Check valve; 6. Inlet pipe; 7. Water collection hopper; 71. Groove; 8. Filter device; 81. Filter screen; 811. Fixed edge; 812. Convex ring; 813. Shaft seat; 9. Automatic scraping mechanism; 91. Propeller; 92. Rotating shaft; 93. Fixed block; 94. Rotating arm; 95. Bearing; 96. Brush bristles; 10. Fine filter assembly. Detailed Implementation
[0032] The technical solution of this utility model will be clearly and completely described below through detailed embodiments and in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0033] Please refer to Figures 1-6This embodiment provides a drainage device for garden landscape water systems, which can be applied to urban landscape ponds, artificial lakes, garden fountains, and other garden landscape water systems. Specifically, the drainage device includes a hollow, rectangular drainage box 1. The drainage box 1 has an inlet 14 and an outlet 15. Vertically distributed partitions 11 are provided in the inner cavity of the drainage box 1, which divide the inner cavity of the drainage box 1 into a front chamber 12 and a rear chamber 13. The inlet 14 is located on the upper side wall of the front chamber 12, and the outlet 15 is located on the lower side wall of the rear chamber 13. The drainage tank 1 is movably equipped with a buoyancy-type opening and closing mechanism 2. The buoyancy-type opening and closing mechanism 2 includes a float 21, a connecting rod 22, and a valve plate 23. The float 21 is located in the front chamber 12, and the valve plate 23 is located in the rear chamber 13 and is slidably connected to the inner wall of the rear chamber 13. The two ends of the connecting rod 22 are fixedly connected to the float 21 and the valve plate 23, respectively. The lower side wall of the rear chamber 13 is provided with an annular limiting plate 16 for supporting the valve plate 23. The annular limiting plate 16 is horizontally distributed above the water outlet 15. The partition 11 is provided with a water passage hole 111 and a guide groove hole 112 located above the annular limiting plate 16. The guide groove hole 112 is slidably connected to the connecting rod 22. By installing a buoyancy-type opening and closing mechanism inside the drainage tank, drainage can be automatically adjusted according to the rising water level, improving drainage efficiency and effectively preventing water accumulation and overflow. Furthermore, the overall structure is simple, easy to install and maintain, reduces operating costs, and facilitates widespread application in garden landscapes.
[0034] In some specific embodiments, as an example, the float 21 is a hollow cuboid made of corrosion-resistant engineering plastic. The valve plate 23 is made of rubber and is rectangular in shape, matching the shape of the rear chamber. The connecting rod 22 is connected to the float 21 and the valve plate 23 by means of screws.
[0035] In some specific implementation methods, refer to Figure 3 The outer peripheral sidewall of the valve plate 23 is provided with a number of guide ribs 231 that slide in cooperation with the inner wall of the rear chamber 13, and a drainage channel 232 is formed between two adjacent guide ribs 231 to facilitate the flow of water.
[0036] In some implementations, reference Figure 2 and Figure 6 The upper surface of the annular limiting plate 16 is provided with a sealing gasket 3 for abutting against the lower surface of the valve plate 23. Specifically, as an example, the sealing gasket 3 is a rubber gasket.
[0037] In some implementations, reference Figure 2 , Figure 3 and Figure 6A counterweight 24 is fixedly installed at the bottom of the float 21. The weight of the counterweight is precisely calculated to better balance the buoyancy of the float and keep the valve plate pressed against the annular limiting plate in the initial state, thereby closing the drainage. As an example, the counterweight 24 is an iron block.
[0038] As an improved implementation method, refer to Figure 2 and Figure 6 The lower part of the front chamber 12 is provided with a limiting member 17 located below the float 21. When in the closed state, the limiting member can play a limiting role, preventing the float from being in a low position and causing the valve plate to tilt, affecting the seal. Specifically, the limiting member 17 is a cross-shaped rib.
[0039] In some implementations, reference Figure 1 The outlet is connected to an outlet pipe, which is equipped with a one-way valve to ensure that water can only be discharged from the drainage device to the outside, preventing backflow of external water. Specifically, the one-way valve can be a spring-loaded one-way valve, a swing one-way valve, or a disc one-way valve.
[0040] In some implementations, reference Figures 1-6 The inlet 14 is connected to an upward-extending inlet pipe 6. An upward-opening water collection hopper 7 is located at the end of the inlet pipe 6 furthest from the drain tank 1, allowing water to overflow and flow into the collection hopper when the water level rises. A filter device 8 is installed at the opening of the collection hopper 7 to remove floating debris such as leaves. The filter device 8 includes a filter screen 81 and an automatic scraping mechanism 9 mounted on the filter screen 81. The automatic scraping mechanism pushes floating debris such as leaves attached to the filter screen in all directions, ensuring smooth drainage.
[0041] In some specific implementation methods, refer to Figure 4 and Figure 5 The filter screen 81 is a stainless steel screen with evenly distributed circular mesh holes. The outer periphery of the filter screen 81 has annularly distributed fixing edges 811, each with a protruding ring 812. The outer wall of the opening of the water collecting hopper 7 has a groove 71 that engages with the protruding ring 812. This allows the filter screen to be quickly fixed to the water collecting hopper via a snap-fit installation method. Specifically, the mesh size of the filter screen 81 is 5~20mm.
[0042] In some specific implementation methods, refer to Figures 4-6The automatic sweeping mechanism 9 includes a propeller 91, a rotating shaft 92, a fixed block 93, and a rotating arm 94. A bearing seat 813 with mounting holes is provided in the middle of the filter screen 81. The rotating shaft 92 is rotatably connected to the bearing seat 813 via a bearing 95. The upper end of the rotating shaft 92 is fixedly connected to the fixed block 93. The rotating arm 94 is horizontally distributed and connected to the fixed block 93. The lower surface of the rotating arm 94 is provided with bristles 96 that abut against the filter screen 81. The lower end of the rotating shaft 92 extends between the water collection hopper 7 and the water inlet pipe 6 and is fixedly connected to the propeller 91. Thus, during drainage, the falling water flow drives the propeller to rotate, thereby causing the rotating arm to rotate synchronously, allowing the bristles on the rotating arm to remove floating debris such as leaves from the filter screen.
[0043] As an improved implementation method, refer to Figure 2 and Figure 6 The inlet 14 is equipped with a fine filtration assembly 10 for further filtering the water passing through the filter screen, removing fine impurities and some dissolved pollutants. The fine filtration assembly 10 includes a filter plate made of activated carbon fiber felt and an outer frame distributed around the filter plate. The inner wall of the front chamber 12 is provided with an inlet groove 18 for slidingly mounting the fine filtration assembly 10. This allows the fine filtration assembly to be inserted and installed or removed and disassembled along the inlet groove, facilitating cleaning and replacement. Specifically, as an example, the density of the activated carbon fiber felt is 50~100 g / m².
[0044] In addition, such as Figure 1 , Figure 2 and Figure 6 As shown, the top of the drainage tank 1 is equipped with a removable cover plate 19, which facilitates disassembly and maintenance.
[0045] The drainage device of this invention is arranged along the edge of the water system, and the outlet pipe 4 is connected to the drainage pipe. During operation, when a heavy rainstorm occurs, the water level rises rapidly, such as... Figure 6As shown, water flows sequentially through the filter screen 81, water collection hopper 7, inlet pipe 6, and fine filter assembly 10 into the front chamber 12. The float 21 rises under buoyancy and moves the valve plate 23 upward via the connecting rod 22. Water in the front chamber 12 flows into the rear chamber 13 through the water passage 111 and guide slot 112 on the partition 11 due to the liquid level difference. A portion of the water above the valve plate 23 flows downward along the drainage channel 232 between the valve plate 23 and the inner wall of the rear chamber 13 to the lower part of the rear chamber 13, and is finally discharged through the outlet pipe 4. During drainage, the cooperation of the filter screen 81 and the fine filter assembly 10 effectively intercepts impurities and pollutants in the water, preventing them from entering the drainage pipe and causing blockage or pollution. Simultaneously, the automatic scraping mechanism 9 automatically drives the rotating arm 94 with bristles to rotate and scrape the surface of the filter screen 81 during drainage, preventing floating objects such as leaves from clogging the filter screen 81. After the water level drops, as... Figure 2 As shown, the float 21 descends and drives the valve plate 23 to move down. Under the action of the counterweight 24, the valve plate 23 re-fits tightly against the annular limiting plate 16, achieving automatic closure, completing one drainage process and returning to standby state.
[0046] The above embodiments are merely illustrative of the concept and technical solution of this utility model, and are not intended to limit this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A drainage device for a garden landscape water system, comprising a hollow drainage tank, the drainage tank having an inlet and an outlet, characterized in that, The drainage tank has vertically arranged partitions that divide it into a front chamber and a rear chamber. The inlet is located on the upper side wall of the front chamber, and the outlet is located on the lower side wall of the rear chamber. A buoyancy-type opening and closing mechanism is movably installed within the drainage tank. This mechanism includes a float, a connecting rod, and a valve plate. The float is located in the front chamber, and the valve plate is located in the rear chamber and slidably connected to the inner wall of the rear chamber. The two ends of the connecting rod are fixedly connected to the float and the valve plate, respectively. An annular limiting plate supporting the valve plate is provided on the lower side wall of the rear chamber. The annular limiting plate is horizontally positioned above the outlet. The partition has a water passage hole and a guide groove located above the annular limiting plate, and the guide groove is slidably connected to the connecting rod.
2. The drainage device for garden landscape water systems according to claim 1, characterized in that, The outer peripheral sidewall of the valve plate is provided with several guide ribs that slide and engage with the inner wall of the rear chamber, and a drainage channel is formed between two adjacent guide ribs.
3. The drainage device for garden landscape water systems according to claim 2, characterized in that, The upper surface of the annular limiting plate is provided with a sealing gasket for abutting against the lower surface of the valve plate.
4. The drainage device for garden landscape water systems according to claim 1, characterized in that, A counterweight is fixedly installed at the bottom of the float.
5. The drainage device for garden landscape water systems according to claim 4, characterized in that, The lower part of the front chamber is provided with a limiting member located below the float.
6. The drainage device for garden landscape water systems according to claim 1, characterized in that, The water outlet is connected to a water outlet pipe, and the water outlet pipe is equipped with a one-way valve.
7. A drainage device for garden landscape water systems according to any one of claims 1 to 6, characterized in that, The inlet is connected to an upward-extending inlet pipe. At the end of the inlet pipe away from the drain tank, there is an upward-opening water collection hopper. The opening of the water collection hopper is covered with a filter device, which includes a filter screen and an automatic scraping mechanism installed on the filter screen.
8. The drainage device for garden landscape water systems according to claim 7, characterized in that, The filter screen is a stainless steel screen with evenly distributed circular mesh holes. The outer periphery of the filter screen is provided with a ring-shaped fixed edge, and the fixed edge is provided with a convex ring. The outer wall of the opening of the water collection hopper is provided with a groove that is correspondingly engaged with the convex ring.
9. The drainage device for garden landscape water systems according to claim 7, characterized in that, The automatic sweeping mechanism includes a propeller, a rotating shaft, a fixed block, and a rotating arm. The filter screen is provided with a bearing seat in the middle, and the rotating shaft is rotatably connected to the bearing seat through a bearing. The upper end of the rotating shaft is fixedly connected to the fixed block. The rotating arm is horizontally distributed and connected to the fixed block. The lower surface of the rotating arm is provided with bristles that abut against the filter screen. The lower end of the rotating shaft extends between the water collection hopper and the water inlet pipe and is fixedly connected to the propeller.
10. The drainage device for garden landscape water systems according to claim 7, characterized in that, The inlet is equipped with a fine filtration assembly, which includes a filter plate made of activated carbon fiber felt and an outer frame distributed around the filter plate. The inner wall of the front chamber is provided with an inlet groove for slidingly embedding the fine filtration assembly.