A suspended water supply device

By using a suspended water supply device and a bottom contact detection system, the problems of water pump wear due to sediment and water level drop in waters with fluctuating water levels have been solved, achieving stable and efficient operation of the water pump and improving the reliability and safety of the equipment.

CN224301094UActive Publication Date: 2026-05-29JIANGXI HIGHWAY & BRIDGE ENG BUREAU

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI HIGHWAY & BRIDGE ENG BUREAU
Filing Date
2025-07-18
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In waters with fluctuating water levels, existing technologies can cause water pumps to wear out or become clogged due to the intake of sediment, and they may run dry when the water level drops, leading to equipment damage. As a result, they are difficult to operate stably in dynamic waters.

Method used

A suspended water supply device is adopted, which uses a float to provide buoyancy so that the water pump is suspended below the water surface. Combined with a bottom contact detection unit and a programmable controller, the operation of the water pump is monitored and controlled in real time to avoid mud and sand intake and grounding caused by water level drop.

Benefits of technology

It effectively avoids water pump wear and blockage caused by silt, ensures stable operation in waters with fluctuating water levels, improves equipment reliability and safety, extends service life, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224301094U_ABST
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Abstract

The utility model discloses a kind of suspended water supply devices, to solve the technical problems that existing water pump is easily blocked by silt when being used on the bottom, and easily stranded idling in the water area with large water level change. The device includes support, water pump mounted thereon, water delivery pipeline, first floater providing buoyancy for support, and second floater providing buoyancy for water delivery pipeline. A bottom-touching detection unit can be provided at the bottom of the support, and the water pump is controlled to start and stop by the controller according to the detection results. The water pump is suspended by the first floater, preventing the intake of silt. When the water level drops, the device can automatically move to the deep water area, preventing stranded idling. The second floater ensures the stability of the water delivery pipeline, the overall structure is stable, and it can work safely in the water area with dynamic water level changes for a long time.
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Description

Technical Field

[0001] This utility model relates to the field of water supply facilities, and in particular to a suspended water supply device. Background Technology

[0002] In various scenarios such as agricultural irrigation, aquaculture, municipal water supply, and field operations, it is often necessary to draw water from natural bodies of water such as rivers, lakes, and reservoirs. Currently, the commonly used methods for water intake are submersible pumps or centrifugal pumps.

[0003] When using submersible pumps, a common installation method is to submerge the pump directly at the bottom of the water body. However, this method has significant drawbacks: the bottom of water bodies usually accumulates a large amount of silt, mud, and other impurities. When the pump is operating, if its inlet is too close to these deposits, silt can easily be sucked into the pump body. This not only causes rapid wear on components such as the impeller, reducing the pump's lifespan, but can also lead to pump blockage, interruption of water supply, or even burnout of the motor.

[0004] Another approach is to anchor the water pump to the shore or a fixed pier, drawing water through a pipe extending into the water. This method is feasible in waters with constant water levels, but it presents new challenges in areas with significant water level fluctuations (such as tides or seasonal rises and falls). When the water level drops (e.g., during low tide), the inlet of the water intake pipe may become exposed, causing the pump to run dry. Prolonged dry running can damage the mechanical seal and cause the motor to overheat and burn out. Conversely, if the water intake point is located in deep water to avoid grounding, longer pipelines are required, increasing costs and maintenance complexity. Furthermore, during high-water seasons, the pump's distance from the water source can also affect its efficiency.

[0005] Therefore, there is an urgent need for a water supply device that can adapt to changes in water level and avoid sucking in sediment from the bottom of the water, so as to ensure that the water pump can operate stably and efficiently for a long time. Utility Model Content

[0006] The purpose of this invention is to provide a suspended water supply device that can adapt to changes in water level and avoid sucking in sediment from the bottom of the water, so as to ensure that the water pump can operate stably and efficiently for a long time.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a suspended water supply device, the suspended water supply device comprising:

[0008] support;

[0009] A water pump, which is mounted on the bracket, and the output end of the water pump is connected to a water supply pipeline;

[0010] A first float, fixed to the support, provides buoyancy to the support;

[0011] The second float is connected to the water supply pipeline and provides buoyancy to the water supply pipeline.

[0012] In one embodiment, a bottom-touching detection unit is further included, which is disposed at the bottom of the support and detects the distance between the bottom of the support and the bottom of the water.

[0013] In one embodiment, the bottom-contact detection unit is electrically connected to the water pump, and a programmable controller is connected to the circuit connecting the bottom-contact detection unit and the water pump. The programmable controller controls the operation of the water pump based on the detection result of the bottom-contact detection unit.

[0014] In one embodiment, the bottom-touching detection unit is a radar device.

[0015] In one embodiment, the first float includes four floats symmetrically arranged at both ends of the support, and the water pump is installed in the middle area of ​​the support.

[0016] In one embodiment, the water supply pipeline is fixed to the second float by a pipe clamp.

[0017] The above-described technical solutions in the embodiments of this utility model have at least the following technical effects or advantages:

[0018] The suspended water supply device provided in this embodiment uses a first float to provide buoyancy to a support frame on which the water pump is mounted, allowing the entire water intake module to suspend in the water. The water pump is stably maintained at a specific depth below the water surface, with its inlet far from the sediment layer at the bottom of the water body. This fundamentally avoids the wear or blockage problems caused by the water pump sucking in sediment, significantly improving the reliability of water pump operation and extending its service life.

[0019] Furthermore, the device in this invention is entirely suspended on the water surface. When the tide recedes or the water level drops, the first float naturally carries the support and water pump, automatically moving towards the center of the water or deeper areas. This ingenious design ensures that the water pump remains below the water surface and will not be stranded on the shore due to a drop in water level, effectively preventing dry running due to lack of water to pump. This greatly enhances the adaptability and safety of the device in dynamic water environments such as tides and rivers.

[0020] Furthermore, the device in this invention uses a support frame to carry the water pump, and multiple symmetrically arranged floats (first floats) provide buoyancy, resulting in a stable structure that is not easily capsized. Simultaneously, a second float is provided for the water pipeline, giving it independent buoyancy support and preventing the pipeline from sinking and causing drag and stress on the pump body, thus ensuring the stable operation of the entire system. This device requires no complex underwater or shore-based fixed foundations, making deployment flexible and convenient.

[0021] Finally, by adding a bottom-contact detection unit (such as a radar device) to the bottom of the support and linking it with a programmable logic controller (PLC), the distance between the pump body and the bottom of the water can be monitored in real time. If the distance is too close or there is a risk of grounding, the controller can automatically stop the pump, realizing intelligent protection of the equipment and further improving the level of automation and operational safety. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0023] Figure 1 A schematic diagram of the structure of the suspended water supply device provided in the embodiment of this utility model;

[0024] Figure 2 A side view of the bracket provided in an embodiment of this utility model;

[0025] Figure 3 A schematic diagram of the connection between the water supply pipeline and the second float provided in an embodiment of this utility model.

[0026] The labels for the various figures are as follows:

[0027] 1. Support frame; 2. Water pump; 3. First float; 4. Second float; 5. Bottom contact detection unit; 6. Water supply pipeline; 7. Pipe clamp; 8. External cable. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Please see Figures 1 to 3 This application provides a suspended water supply device, including a support 1, a water pump 2, a first float 3, and a second float 4. The water pump 2 is mounted on the support 1, and the output end of the water pump 2 is connected to a water supply pipeline 6; the first float 3 is fixed on the support 1 and provides buoyancy to the support 1; the second float 4 is connected to the water supply pipeline 6 and provides buoyancy to the water supply pipeline 6.

[0033] In this embodiment, the support 1 is the load-bearing structure of the entire device. Preferably, the support 1 is formed by welding or bolting together corrosion-resistant metal materials such as stainless steel or aluminum alloy, providing sufficient structural strength and stability. The support 1 can be a rectangular frame structure, providing a platform for mounting other components.

[0034] Water pump 2 is mounted on bracket 1. Specifically, a mounting platform is provided in the middle area of ​​bracket 1, and water pump 2 is fixed on the platform by a base. The selection of water pump 2 can be determined according to actual requirements such as head and flow rate, and it is usually a submersible pump 2. The output end of water pump 2 is connected to water supply pipeline 6 through a flange or quick coupling. Water pump 2 is powered by an external power source connected to an external power supply through an external cable 8.

[0035] The first float 3 provides the main buoyancy for the support 1 and the water pump 2. In this preferred embodiment, the first float 3 specifically includes four sealed floats. These four floats are symmetrically arranged at both ends of the support 1, with two floats fixed at each end of the support 1. This symmetrical arrangement ensures that the center of gravity of the entire device is located in the center, and the buoyancy is evenly distributed, greatly enhancing the stability of the device in the water and preventing it from capsizing even on water with some waves. The floats are securely installed on the support 1 by clamps or welded fixing frames. The overall buoyancy of the first float 3 is designed to be greater than the total weight of the support 1, the water pump 2, and related accessories, thereby enabling the water pump 2 to be stably suspended at a preset depth below the water surface.

[0036] Water pipeline 6 is responsible for transporting the water pumped by pump 2 to the shore. This pipeline is preferably made of a high-pressure hose with a certain degree of flexibility to accommodate the relative movement between the floating platform and the fixed point on the shore.

[0037] The second float 4 is connected to the water supply pipeline 6 and is used to provide buoyancy to the water supply pipeline 6. In this embodiment, the second float 4 can be an independent float. The water supply pipeline 6 is fixed to the upper part or side of the second float 4 by a pipe clamp 7. The second float 4 supports a portion of the water supply pipeline 6 on or near the water surface, preventing the pipeline from sagging or sinking to the bottom due to its own weight, thereby reducing water flow resistance and effectively avoiding excessive pulling force on the front-end water pump 2 support 1, ensuring the balance and stability of the entire system.

[0038] To further improve the operational safety and automation level of the device, this embodiment also includes a bottom contact detection unit 5. This bottom contact detection unit 5 is located at the bottom of the support 1 and is used to detect the vertical distance between the bottom of the support 1 and the bottom of the water area in real time.

[0039] Optionally, the bottom-contact detection unit 5 can be a waterproof radar device or an ultrasonic sensor. The radar device can accurately transmit and receive signals, calculate the distance to the bottom, and its performance is not easily affected by the turbidity of the water, thus exhibiting high reliability.

[0040] In one embodiment, the bottom-contact detection unit 5 is electrically connected to the water pump 2, and the connection method can be wireless or wired. A programmable controller is connected to the circuit connecting the bottom-contact detection unit 5 and the water pump 2, and the programmable controller controls the operation of the water pump 2 according to the detection result of the bottom-contact detection unit 5.

[0041] The bottom-contact detection unit 5 is electrically connected to the water pump 2, and a programmable logic controller (PLC) is connected to this control circuit. Its specific operation is as follows: The bottom-contact detection unit 5 sends the real-time measured distance signal to the PLC. A safe distance threshold (e.g., 0.5 meters) is preset in the PLC. The PLC continuously compares the detected real-time distance with this threshold. When the water level is normal, the real-time distance is greater than the threshold, and the PLC controls the water pump 2 to operate normally. When the overall device descends due to low tide or other reasons, causing the detection distance to fall below the preset threshold, the PLC immediately outputs a control signal to disconnect the power supply to the water pump 2 via a relay or frequency converter, causing it to stop working.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A suspended water supply device, characterized in that, The suspended water supply device includes: support; A water pump, which is mounted on the bracket, and the output end of the water pump is connected to a water supply pipeline; A first float, fixed to the support, provides buoyancy to the support; The second float is connected to the water supply pipeline and provides buoyancy to the water supply pipeline.

2. The suspended water supply device according to claim 1, characterized in that: It also includes a bottom contact detection unit, which is disposed at the bottom of the support and detects the distance between the bottom of the support and the bottom of the water.

3. A suspended water supply device according to claim 2, characterized in that: The bottom-contact detection unit is electrically connected to the water pump. A programmable controller is connected to the circuit connecting the bottom-contact detection unit and the water pump. The programmable controller controls the operation of the water pump based on the detection result of the bottom-contact detection unit.

4. A suspended water supply device according to claim 2, characterized in that: The bottom-touching detection unit is a radar device.

5. A suspended water supply device according to claim 1, characterized in that: The first float includes four floats, which are symmetrically arranged at both ends of the support, and the water pump is installed in the middle area of ​​the support.

6. A suspended water supply device according to claim 1, characterized in that: The water supply pipeline is fixed to the second float by a pipe clamp.