Fertilizer water regulation and control irrigation system for sunlight greenhouse
By using multiple fertilizer mixing mechanisms and control valve systems, combined with automatic control via light radiation sensors and controllers, the problem of inaccurate fertilizer ratios in traditional water and fertilizer irrigation equipment has been solved, enabling precise fertilization and timely irrigation, and improving operational convenience and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 北京云智轩科技有限公司
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional water and fertilizer irrigation equipment is difficult to control the precise fertilizer ratio, resulting in inaccurate fertilization, waste, and inconvenient operation.
It employs multiple fertilizer mixing mechanisms and control valve systems to achieve independent or combined mixing of different types of fertilizers. Combined with light radiation sensors and controllers, it automatically controls the irrigation volume, ensuring the timeliness and accuracy of irrigation and fertilization.
It enables precise ratio control of different types of fertilizers, reduces fertilizer waste, improves fertilization efficiency and irrigation convenience, and ensures timely water and fertilizer supply for crop growth.
Smart Images
Figure CN224154689U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of irrigation and fertilization technology, specifically to a fertilizer and water regulation irrigation system for solar greenhouses. Background Technology
[0002] Solar radiation has a significant impact on plant growth and development. It affects not only photosynthesis but is also closely related to transpiration, the process by which plants lose water to the atmosphere through their leaves and other parts. Transpiration is highly dependent on the intensity of solar radiation. Increased solar radiation intensity leads to increased transpiration, thus increasing the plant's water requirements. Irrigation is a crucial management measure in greenhouses to meet the water needs of plants.
[0003] Water and fertilizer irrigation is an important fertilization and irrigation technology in modern agriculture. Water and fertilizer irrigation equipment mixes water-soluble fertilizer with water and then uses a drip irrigation system to simultaneously irrigate and fertilize, accurately delivering fertilizer to the soil around the crop roots. This achieves synchronized water and fertilizer management, improves nutrient utilization, reduces water and fertilizer waste, lowers environmental pollution, and increases crop yield and quality. When plants do not need fertilizer, water and fertilizer irrigation equipment can also be used to directly supplement water.
[0004] Traditional fertigation equipment typically stores different types of water-soluble fertilizers (including macro-element, meso-element, and micro-element water-soluble fertilizers, as well as functional fertilizers such as those containing amino acids, humic acid, or alginic acid) in a single mixing tank. After mixing with water to form a fertilizer solution, it is pumped into the irrigation system. However, this centralized mixing method has significant limitations: First, different crops and their various growth stages (such as seedling, flowering, and fruiting stages) have significantly different requirements for fertilizer types, ratios, and concentrations, and a single mixing tank cannot achieve precise ratio control, easily leading to inaccurate fertilization. Second, operators cannot accurately monitor the amount of fertilizer remaining in the tank, causing errors in fertilization dosage. Furthermore, changing fertilizer formulas requires thorough cleaning of the mixing tank, easily resulting in fertilizer waste and presenting technical problems related to inconvenience in fertilization. Utility Model Content
[0005] In view of this, it is necessary to provide a fertilizer and water regulation irrigation system for solar greenhouses that can separately mix different types of water-soluble fertilizers, thus solving the technical problems of inconvenient fertilizer ratio regulation and inconvenient fertilization.
[0006] A fertilizer and water regulation irrigation system for a solar greenhouse includes a water supply device, a fertilizer mixing mechanism, and a main water and fertilizer output pipe. Multiple fertilizer mixing mechanisms are arranged in parallel between the water supply device and the main water and fertilizer output pipe. Each fertilizer mixing mechanism includes a fertilizer pump and a fertilizer tank. Each fertilizer pump is equipped with an inlet branch pipe and an outlet branch pipe, as well as a fertilizer suction pipe connected to the fertilizer tank. The inlet branch pipe of each fertilizer pump is connected to the output end of the water supply device, and the outlet branch pipe of each fertilizer pump is connected to the input end of the main water and fertilizer output pipe. The terminals are interconnected, and a bypass pipe is also provided between the output end of the water supply device and the input end of the water and fertilizer output main pipe. A first control valve is provided on the bypass pipe; a second control valve is provided on the outlet branch pipe of each fertilizer pump; during irrigation, the first control valve is opened and all second control valves are closed, so that the water supply device directly supplies water to the water and fertilizer output main pipe; during fertilization, the first control valve is closed, and the second control valves on one or more fertilizer pumps are opened according to the fertilization needs to carry out independent fertilizer mixing.
[0007] Preferably, a connecting branch pipe is provided between two adjacent fertilizer pumps. One end of the connecting branch pipe is connected to the inlet branch pipe of one of the fertilizer pumps, and the other end is connected to the outlet branch pipe of the other fertilizer pump, so that the two adjacent fertilizer pumps are connected in series. A third control valve is provided on the connecting branch pipe, and a fourth control valve is provided on the inlet branch pipe of each fertilizer pump. By opening or closing the second, third, and fourth control valves respectively, the direction of water flow can be changed, so that any one fertilizer pump can perform independent fertilizer mixing, or any two or more fertilizer pumps can perform multi-stage fertilizer mixing in series.
[0008] Preferably, the water supply device includes a water supply tank, a water pump, and a main water supply pipe. The input end of the main water supply pipe is connected to the output end of the water supply tank. The two ends of the bypass pipe are respectively connected to the input end of the water and fertilizer output main pipe and the output end of the main water supply pipe. The inlet branch pipe of each fertilizer pump is connected to the main water supply pipe. The water pump is installed at the input end of the main water supply pipe to transport water from the water supply tank to the main water supply pipe.
[0009] Preferably, the fertilizer and water regulation irrigation system for the solar greenhouse also includes a controller and a light radiation sensor installed inside the solar greenhouse. The light radiation sensor and the water pump are electrically connected to the controller. The controller has a preset threshold for total solar radiation. The light radiation sensor collects solar radiation values at a predetermined frequency inside the solar greenhouse and transmits the collected solar radiation values to the controller. The controller receives the solar radiation values transmitted by the light radiation sensor and compares them with the preset threshold for total solar radiation. When the solar radiation value reaches the preset threshold for total solar radiation, the controller controls the water pump to start.
[0010] Preferably, the controller has a preset irrigation volume threshold, the water pump is a metering pump, and the controller controls the water pump to start when the preset irrigation volume threshold is reached, and then controls the water pump to stop.
[0011] Preferably, the fertilizer and water regulation irrigation system for the solar greenhouse also includes a fixing frame, the main water supply pipe is horizontally arranged on the fixing frame, and fixing components are provided on the fixing frame. The fixing components are snapped onto both ends of the main water supply pipe to fix the main water supply pipe on the fixing frame.
[0012] Preferably, the fixing component includes a pipe clamp, a fixing bolt, and a connecting piece. The pipe clamp consists of two interlocking clamping pieces that are clamped to opposite sides of the end of the main water supply pipe. There are two fixing bolts that pass through both ends of the two clamping pieces respectively, fastening the two clamping pieces together to clamp and fix the main water supply pipe. One end of the connecting piece is clamped between the two clamping pieces and sleeved on one of the fixing bolts, and the other end of the connecting piece is fixedly connected to the fixing frame.
[0013] The present invention adopts the above-mentioned technical solution, and its beneficial effects are as follows: by controlling the first control valve and the second control valve, the irrigation and fertilization states can be switched at will, and by setting multiple sets of fertilizer mixing mechanisms, different types of fertilizers can be mixed; by controlling the first control valve and the second control valve, any set of fertilizer mixing mechanisms can be opened for individual fertilizer mixing, or multiple sets of fertilizer mixing mechanisms can be opened for simultaneous fertilizer mixing, which makes it convenient for staff to change and adjust the ratio and amount of different fertilizers, reduces fertilizer waste, and makes it easier for staff to accurately grasp the remaining amount of various fertilizers, making fertilization more convenient and efficient. Attached Figure Description
[0014] Figure 2 This is a three-dimensional structural diagram of the utility model.
[0015] Figure 1 This is a side view of the structure of the utility model.
[0016] Figure 3 This is a schematic diagram of the fertilizer mixing mechanism.
[0017] Figure 4 This is a schematic diagram of the fastener structure.
[0018] Figure 5 This is a schematic diagram of the functional modules of the controller.
[0019] The diagram shows: water supply device 10, fertilizer mixing mechanism 20, main water and fertilizer output pipe 30, fertilizer pump 21, water and fertilizer tank 22, inlet branch pipe 23, outlet branch pipe 24, fertilizer suction pipe 25, bypass pipe 40, first control valve 41, second control valve 26, connecting branch pipe 27, third control valve 28, fourth control valve 29, water supply tank 11, water pump 12, main water supply pipe 13, fixing bracket 50, fixing component 51, pipe clamp 511, fixing bolt 512, connecting piece 513. Also included are: water flow meter 31, controller 60, and light radiation sensor 70. Detailed Implementation
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Please refer to Figures 1 to 3 This utility model provides a fertilizer and water regulation irrigation system for a solar greenhouse, including a water supply device 10, a fertilizer mixing mechanism 20, and a water and fertilizer output main pipe 30. To facilitate the mixing of different types of fertilizers individually or simultaneously and improve fertilization efficiency, the fertilizer mixing mechanism 20 is configured in multiple groups, arranged side-by-side between the water supply device 10 and the water and fertilizer output main pipe 30. Each group of fertilizer mixing mechanisms 20 includes a fertilizer pump 21 and a water and fertilizer tank 22. Each fertilizer pump 21 is equipped with an inlet branch pipe 23 and an outlet branch pipe 24. The fertilizer pump 21 is a hydraulically driven proportional dosing device. A fertilizer suction pipe 25 is provided on the fertilizer pump 21 and connected to the water and fertilizer tank 22. Each water and fertilizer tank 22 is used to pre-store different types of water-soluble fertilizers. The inlet branch pipe 23 of each fertilizer pump 21 is connected to the output end of the water supply device 10, and the outlet branch pipe 24 of each fertilizer pump 21 is connected to the water and fertilizer output main pipe 30. The input ends of the main water and fertilizer output pipe 30 are interconnected. The output end of the main water and fertilizer output pipe 30 is used to connect to the drip irrigation pipeline or irrigation branch pipe laid in the greenhouse. A bypass pipe 40 is also provided between the output end of the water supply device 10 and the input end of the main water and fertilizer output pipe 30. A first control valve 41 is provided on the bypass pipe 40. A second control valve 26 is provided on the outlet branch pipe 24 of each fertilizer pump 21. When it is necessary to irrigate the crops in the greenhouse, the first control valve 41 can be manually opened and the second control valves 26 on all fertilizer pumps 21 can be closed. After the water supply device 10 is turned on, it can directly supply water to the main water and fertilizer output pipe 30 for irrigation. When it is necessary to fertilize the crops in the greenhouse, the first control valve 41 can be manually closed and the second control valves 26 on one or more fertilizer pumps 21 can be opened according to the fertilization needs to perform independent fertilizer mixing.
[0022] The water supply device 10 includes a water supply tank 11, a water pump 12, and a main water supply pipe 13. The input end of the main water supply pipe 13 is connected to the output end of the water supply tank 11. The two ends of the bypass pipe 40 are respectively connected to the input end of the water and fertilizer output main pipe 30 and the output end of the main water supply pipe 13. The inlet branch pipe 23 of each fertilizer pump 21 is connected to the main water supply pipe 13. The water pump 12 is installed at the input end of the main water supply pipe 13 to transport water from the water supply tank 11 to the main water supply pipe 13.
[0023] Please refer to Figure 3 Furthermore, a connecting branch pipe 27 is provided between two adjacent fertilizer pumps 21. One end of the connecting branch pipe 27 is connected to the inlet branch pipe 23 of one of the fertilizer pumps 21, and the other end is connected to the outlet branch pipe 24 of the other fertilizer pump 21, so that the two adjacent fertilizer pumps 21 are connected in series. A third control valve 28 is provided on the connecting branch pipe 27, and a fourth control valve 29 is provided on the inlet branch pipe 23 of each fertilizer pump 21. When fertilizing, the second control valve 26, the third control valve 28, and the fourth control valve can be opened or closed according to the fertilization needs or the water flow to change the direction of water flow. This allows any one fertilizer pump 21 to perform independent fertilizer mixing, or any two or more fertilizer pumps 21 to perform multi-stage fertilizer mixing in series.
[0024] The purpose of multi-stage fertilizer mixing in a series connection is as follows: When fertilizing crops in small areas, the water flow from the main water supply pipe 13 is limited due to the small coverage of drip irrigation pipes or irrigation branch pipes in the small planting area. Each fertilizer pump 21 requires a certain water flow to be driven for fertilizer mixing. If multiple fertilizer pumps 21 are turned on at the same time, the water flow through each fertilizer pump 21 will not meet the requirements, which will cause difficulty in starting the fertilizer pumps 21 and reduce the fertilizer mixing efficiency. Therefore, multiple fertilizer pumps 21 are connected in series by connecting branch pipes 27, and the water flow is adjusted by opening or closing the corresponding control valves 26, 28, and 4 to ensure that each fertilizer pump 21 starts smoothly and improves the fertilizer mixing efficiency.
[0025] For example, when fertilizing crops grown in a small area, if the output water flow is insufficient to drive all fertilizer pumps 21, the first control valve 41 is closed; the third control valve 28 between two adjacent fertilizer pumps 21 is opened; the fourth control valve 29 on the first fertilizer pump 21 is opened; and the second control valve 26 on the first fertilizer pump 21 is closed; the fourth control valve 29 on the last fertilizer pump 21 is closed; and the second control valve 26 on the last fertilizer pump 21 is opened. In this way, multiple fertilizer pumps 21 can be connected in series, so that water in the main water supply pipe 13 flows only from the first fertilizer pump 21, and then... After passing through each fertilizer pump 21, the water flows out from the fertilizer pump 21 at the end, thereby increasing the water pressure and enabling each fertilizer pump 21 to smoothly mix fertilizer. When irrigating and fertilizing crops planted over a large area, if the output water flow is sufficient to drive all fertilizer pumps 21, the first control valve 41 and all third control valves 28 are closed; all second control valves 26 and fourth control valves are opened, so that each fertilizer pump 21 can independently mix fertilizer. In this embodiment, any two or more adjacent fertilizer pumps 21 can be connected in series to mix fertilizer according to the actual water flow requirements.
[0026] In traditional solar greenhouses, irrigation time and amount mainly rely on manual experience, which has serious lag and cannot achieve timely irrigation or effectively control the amount of irrigation. Existing technologies also use soil moisture sensors to monitor soil water content, but they generally have problems such as low correlation between soil texture differences and plant water deficit response, unstable monitoring indicators, and inability to accurately predict crop water consumption, resulting in untimely irrigation and weak role in actual production.
[0027] To address this technical problem, the solar greenhouse uses a fertilizer and water regulation irrigation system. This system involves installing a controller 60 and a light radiation sensor 70 within the greenhouse. The light radiation sensor 70 and the water pump 12 are electrically connected to the controller 60. The controller 60 has a preset threshold for total solar radiation. The light radiation sensor 70 collects solar radiation values at a predetermined frequency within the greenhouse and sequentially transmits each collected value to the controller 60. The controller 60 receives the solar radiation values collected by the light radiation sensor 70 each time, accumulates these values, and compares the accumulated solar radiation value with the preset total solar radiation threshold. When the accumulated solar radiation value reaches the preset total solar radiation threshold, the controller 60 activates the water pump 12 to perform an irrigation operation.
[0028] To facilitate control of irrigation volume, an irrigation volume threshold is preset in the controller 60. The water pump 12 is a metering pump. After the controller 60 controls the water pump 12 to start, it can obtain the water flow rate value delivered by the water pump 12. When the water pump 12 reaches the preset irrigation volume, the controller 60 controls the water pump 12 to stop the current irrigation and clears the accumulated solar radiation value received during the current irrigation to zero. Then, it starts to receive and accumulate the solar radiation value collected by the light radiation sensor 70 again to prepare for the next irrigation.
[0029] This greenhouse irrigation system uses fertilizer and water regulation to collect and accumulate solar radiation values to reflect crop water consumption. Based on the accumulated solar radiation values, it controls the water supply device 10 to start quantitative irrigation, ensuring the timeliness and accuracy of irrigation, which helps crop growth and improves the convenience of greenhouse irrigation.
[0030] Please refer to Figure 2 and Figure 5 Specifically, the light radiation sensor 70 is placed in an area of the greenhouse that receives normal sunlight. The sampling frequency of the light radiation sensor 70 can be preset to every 5 seconds. The solar radiation sensor 70 collects solar radiation values (E) at a predetermined frequency within the greenhouse. The controller 60 sequentially receives the solar radiation values (E) collected by the solar radiation sensor 70 each time, accumulates the received solar radiation values (E) (∑E), and compares the accumulated solar radiation value (∑E) with a preset total solar radiation threshold. When the accumulated solar radiation value (∑E) is greater than or equal to the preset total solar radiation threshold, the controller 60 controls the water pump 12 to start an irrigation operation. When the irrigation volume reaches a preset irrigation volume threshold, the controller 60 controls the water pump 12 to stop the irrigation operation, clears the accumulated solar radiation value (∑E) to zero, and repeats the above operation to receive solar radiation values (E) again and re-accumulate the solar radiation values (∑E) collected by the solar radiation sensor 70.
[0031] The light radiation sensor 70 can be selected with a spectral response range of 300-1100nm (covering photosynthetically active radiation PAR), such as the Apogee SQ-500 series. Multiple light radiation sensors 70 can be arranged according to the area of the greenhouse to avoid the influence of local shading. For example, one light radiation sensor 70 can be arranged for every 200㎡. The controller 60 can be a PLC or a low-power IoT controller 60.
[0032] The preset thresholds for total solar radiation and irrigation volume in controller 60 can be set according to the total types of crops grown in the greenhouse. The threshold settings in controller 60 are as follows:
[0033]
[0034] The irrigation system for this solar greenhouse uses a method of determining the irrigation frequency by accumulating the solar radiation value, and the irrigation amount is determined by calculating ETc (plant transpiration) based on the Peng Man formula.
[0035] In the above embodiments, the first control valve 41, the second control valve 26, the third control valve 28, and the fourth control valve are all solenoid valves and are electrically connected to the controller 60. The controller 60 controls the opening or closing of each solenoid valve to perform automatic irrigation or fertilization operations.
[0036] The controller 60 is equipped with a timer that operates on a daily basis and has a preset fertilization time. The fertilization time is pre-set according to the crop type and fertilization cycle. When the timer in the controller 60 reaches the preset fertilization time, a fertilization signal is generated. The controller 60 will respond to this fertilization signal when it starts the water pump 12 for irrigation, and will correspondingly control the first control valve 41 to close and the second control valve 26 to open, thus performing irrigation and fertilization operations. It should be noted that the fertilization signal is only responded to by the controller 60 once per fertilization cycle to avoid repeated fertilization.
[0037] In this embodiment, the controller 60 can control the second control valve 26, the third control valve 28, and the fourth control valve according to the irrigation area or water flow, and connect the fertilizer pumps 21 in series to mix fertilizer.
[0038] Please refer to Figure 2 Furthermore, a water flow meter 31 is installed at the output end of the water and fertilizer output main pipe 30. After the output end of the water and fertilizer output main pipe 30 is connected to the drip irrigation pipeline, the water flow can be detected by the water flow meter 31 during irrigation and fertilization, so that the staff can observe it.
[0039] Please refer to Figure 1 , Figure 2 and Figure 4Furthermore, the fertilizer and water regulation irrigation system for the solar greenhouse also includes a fixing frame 50. The main water supply pipe 13 is horizontally arranged on the fixing frame 50. Fixing members 51 are provided on the fixing frame 50. The fixing members 51 are clamped at both ends of the main water supply pipe 13 to fix the main water supply pipe 13 to the fixing frame 50. The fixing member 51 includes a pipe clamp 511, a fixing bolt 512, and a connecting piece 513. The pipe clamp 511 consists of two clamping pieces that interlock and clamp opposite each other on both sides of the end of the main water supply pipe 13. There are two fixing bolts 512, which pass through both ends of the two clamping pieces respectively to fasten the two clamping pieces together to clamp and fix the main water supply pipe 13. One end of the connecting piece 513 is clamped between the two clamping pieces and sleeved on one of the fixing bolts 512. The other end of the connecting piece 513 is fixedly connected to the fixing frame 50.
[0040] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A fertilizer and water regulation irrigation system for a solar greenhouse, characterized in that: The system includes a water supply device, a fertilizer mixing mechanism, and a main water and fertilizer output pipe. Multiple fertilizer mixing mechanisms are arranged in parallel between the water supply device and the main water and fertilizer output pipe. Each mixing mechanism includes a fertilizer pump and a fertilizer tank. Each fertilizer pump has an inlet branch pipe, an outlet branch pipe, and a suction pipe connected to the fertilizer tank. The inlet branch pipe of each fertilizer pump is connected to the output end of the water supply device, and the outlet branch pipe of each fertilizer pump is connected to the input end of the main water and fertilizer output pipe. A bypass pipe is also provided between the output end of the water supply device and the input end of the main water and fertilizer output pipe, and a first control valve is installed on the bypass pipe. A second control valve is installed on the outlet branch pipe of each fertilizer pump. During irrigation, the first control valve is opened and all second control valves are closed, allowing the water supply device to directly supply water to the main water and fertilizer output pipe. During fertilization, the first control valve is closed, and one or more second control valves on one of the fertilizer pumps are opened according to fertilization needs for independent fertilizer mixing.
2. The fertilizer and water regulation irrigation system for solar greenhouses as described in claim 1, characterized in that: A connecting branch pipe is also provided between two adjacent fertilizer pumps. One end of the connecting branch pipe is connected to the inlet branch pipe of one of the fertilizer pumps, and the other end is connected to the outlet branch pipe of the other fertilizer pump, so that the two adjacent fertilizer pumps are connected in series. A third control valve is provided on the connecting branch pipe, and a fourth control valve is provided on the inlet branch pipe of each fertilizer pump. By opening or closing the second, third, and fourth control valves respectively, the direction of water flow can be changed, so that any one fertilizer pump can perform independent fertilizer mixing, or any two or more fertilizer pumps can be connected in series to perform multi-stage fertilizer mixing.
3. The fertilizer and water regulation irrigation system for solar greenhouses as described in claim 2, characterized in that: The water supply device includes a water supply tank, a water pump, and a main water supply pipe. The input end of the main water supply pipe is connected to the output end of the water supply tank. The two ends of the bypass pipe are respectively connected to the input end of the water and fertilizer output main pipe and the output end of the main water supply pipe. The inlet branch pipe of each fertilizer pump is connected to the main water supply pipe. The water pump is installed at the input end of the main water supply pipe to transport water from the water supply tank to the main water supply pipe.
4. The fertilizer and water regulation irrigation system for solar greenhouses as described in claim 3, characterized in that: It also includes a controller and a light radiation sensor installed in the greenhouse. The light radiation sensor and the water pump are electrically connected to the controller. The controller has a preset threshold for total solar radiation. The light radiation sensor collects solar radiation values at a predetermined frequency in the greenhouse and transmits the collected solar radiation values to the controller. The controller receives the solar radiation values transmitted by the light radiation sensor and compares them with the preset threshold for total solar radiation. When the solar radiation value reaches the preset threshold for total solar radiation, the controller controls the water pump to start.
5. The fertilizer and water regulation irrigation system for solar greenhouses as described in claim 4, characterized in that: The controller has a preset irrigation volume threshold, and the water pump is a metering pump. When the water pump is started by the controller and reaches the preset irrigation volume threshold, the controller controls the water pump to stop.
6. The fertilizer and water regulation irrigation system for solar greenhouses as described in claim 3, characterized in that: It also includes a fixing frame, on which the main water supply pipe is horizontally arranged. Fixing components are provided on the fixing frame, and the fixing components are snapped onto both ends of the main water supply pipe to fix the main water supply pipe to the fixing frame.
7. The fertilizer and water regulation irrigation system for solar greenhouses as described in claim 6, characterized in that: The fasteners include pipe clamps, fixing bolts, and connecting plates. The pipe clamps consist of two interlocking clamping plates that are positioned opposite each other and clamped on both sides of the end of the main water supply pipe. There are two fixing bolts that pass through both ends of the two clamping plates to fasten the two clamping plates together and fix the main water supply pipe. One end of the connecting plate is clamped between the two clamping plates and is fitted onto one of the fixing bolts. The other end of the connecting plate is fixedly connected to the fixing frame.