Multi-nozzle solar fountain
The multi-nozzle solar fountain addresses limitations of conventional fountains by providing diverse water patterns, enhanced stability, and intelligent energy management, ensuring extended operation and adaptability.
Patent Information
- Application Number
- DE202025107045
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-01-08
- Estimated Expiration
- 2035-11-30
AI Technical Summary
Conventional solar fountains have limited water jet patterns, poor installation stability, and lack environmental adaptability and fault protection.
A multi-nozzle solar fountain with a floating platform, adjustable mounting frame, and intelligent control system, featuring interchangeable nozzles, a suction cup for stability, and a control circuit for solar charging and fault protection.
Enables diverse water feature effects, improved stability, extended operating time, and intelligent energy management, enhancing decorative appeal and environmental adaptability.
Smart Images

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Abstract
Description
Technology area
[0001] The utility model relates to solar energy utilization and water equipment technology, in particular a multi-nozzle solar fountain designed for courtyards, aquariums and small ornamental ponds. Background technology
[0002] In everyday life, solar-powered fountains are often used for garden design, aquarium aeration, and landscaping thanks to their independence from an existing power source, their energy efficiency, and their environmental friendliness. However, the current state of the art has the following disadvantages: Limited water jet pattern: Most solar fountains only have a single straight nozzle set, which can only produce a linear water jet, meaning that no changing water feature effects depending on the environmental conditions are possible, resulting in a lack of decorative effect; Poor installation compatibility: The water pumps are not equipped with practical mounting mechanisms, so they are often easily displaced by the current. Furthermore, there is no adjustment mechanism for different water depths, which can lead to reduced stability of the floating platform in deeper water. To overcome the aforementioned disadvantages, the utility model provides a solar fountain equipped with multiple nozzles. Content of the utility model
[0003] The present utility model aims to provide a suitable multi-nozzle solar fountain to overcome conventional shortcomings such as limited water jet pattern, poor stability of the floating plate, short operating time and the lack of fault protection.
[0004] To solve the problem, the utility model is designed as follows: A multi-jet solar fountain comprising a floating platform, a solar panel mounted on the top of the floating platform, a removable mounting frame attached to the edge of the floating platform, a control box fixed to the underside of the floating platform, a water pump electrically connected to the control box, several sets of jets, each of which can be optionally connected to the outlet of a water pump via a spigot, and a light panel mounted on the edge of the floating platform. The control box integrates a control circuit, a lithium battery, and a light sensor. The control circuit is designed to automatically regulate the activation of the water pump and the light panel according to the intensity of the light beam, while also intelligently managing solar charging, battery protection, and monitoring the status of the electric motor.
[0005] It can also be designed so that a suction cup is attached to the underside of the water pump. This allows the water pump to adhere firmly to the bottom of the pond and thus effectively counteract displacement caused by the reaction force of the water flow and the buoyancy of the device, ensuring that the pump inlet maintains a constant position.
[0006] It can also be designed so that the support frame includes a telescopic pole that can be rotated outwards and extended axially, and a hook attached to its underside. Rotating the telescopic pole increases the buoyancy of the floating platform and significantly improves its resistance to capsizing. Counterweights can be attached to the hooks on the bottom to lower the overall center of gravity of the device and create a self-righting effect.
[0007] Furthermore, the nozzle sets can be configured with various arrangements, such as single spray openings, multiple spray openings, angled spray openings, and offset spray openings. Changing the nozzle arrangement alters the outlet path and water feature pattern, resulting in multiple selectable water feature modes from a single water pump. This significantly enhances both the decorative effect and the adaptability to different environments.
[0008] Furthermore, the water pump can be designed to include an electric motor, an impeller, and a filter cover mounted on the edge of the impeller. The filter cover can trap large particles such as tree leaves and fibers in the water, preventing these particles from entering the pump housing where they could become entangled or block the impeller. This essentially eliminates the risk of the motor being overloaded due to physical clogging.
[0009] Furthermore, the control circuit of the control box can be designed to integrate several functional modules, such as those for solar charging voltage regulation, battery protection, light and voltage detection, water pump motor drive, fault alarm, and motor lockout control. This circuit system then forms the "intelligent brain" of the device, enabling not only a light-controlled automatic start-stop function but also precise regulation of the lithium battery's charging and discharging process, preventing potential overcharging and over-discharging, and thus extending the battery's lifespan.
[0010] It can also be designed so that the light panel is ring-shaped and automatically controlled by the control circuit depending on the light intensity. The integrated light sensor is designed for real-time monitoring of the ambient light intensity. In twilight or poor lighting conditions, the ring-shaped light panel illuminates automatically, thus providing ambient lighting and increased safety. The light panel switches off automatically when there is sufficient daylight.
[0011] Furthermore, the control circuit can be designed to include a status indicator module (LED). This module displays the current operating status of the device, such as "in operation," "ready for operation," and "charging," by means of continuous illumination or flashing of different LEDs. In addition, a user-friendly human-machine interface is available to significantly simplify operation and status monitoring.
[0012] Furthermore, the control box can be designed with an integrated communication module. This module enables wireless communication between the fountain and an external smart device, such as a mobile app. This allows for remote control of the fountain, personalization of an operating schedule, or firmware updates. In this way, conventional fountains can gain the expandability of an IoT smart terminal, creating a modern product experience.
[0013] Compared to the prior art, the present utility model offers the following advantages: Diverse water jet patterns: The individual nozzle sets can be freely changed to create various water feature effects such as straight spray jets, rotating spray jets and flower patterns, suitable for various scenarios such as garden decoration and aquarium aeration; Significantly improved buoyancy stability: The triple support arrangement, consisting of telescopic poles, a counterweight attached to a hook, and a water pump suction cup, prevents the floating plate from tipping or overturning; Extended operating time and improved protection: The solar panel, in conjunction with a lithium battery, enables off-grid operation, while the battery protection module prevents overcharging and over-discharging. Additionally, motor stall alarms and a filter cover are included, which contribute to a long service life for the device. Intelligent and convenient: The light-controlled start / stop function and timer reduce energy consumption. The nozzle and mounting frame are removable for easy storage or installation. Energy-saving and environmentally friendly: Fully solar-powered, i.e., independent of an external power supply. The light panel uses a low-power LED light source (≤1 W). Illustration of the attached drawings
[0014] To illustrate the technical solution of the embodiments of the utility model more clearly, the attached drawings, which are to be used in the embodiments, are briefly presented below. It is easy to see that the following attached drawings only represent certain embodiments of the utility model, and that the person skilled in the industry can obtain further relevant accompanying drawings without creative work also from these attached drawings. Fig. 1, Fig. 2, Fig. Figures 3 each show an overall view of the embodiment according to the invention. Fig. 4 shows a nozzle view according to the embodiment of the invention, Fig. 5 shows a circuit diagram according to the embodiment of the invention, Fig. 6 to Fig. Figures 13 each show an application scheme according to the embodiment of the invention, Fig. Figure 14 shows an exploded view of the water pump according to the embodiment of the invention. Reference symbol list:
[0015] 1. Floating plate, 2. Solar panel, 3. Mounting frame, 31. Telescopic pole, 32. Hook, 4. Control box, 5. Water pump, 51. Electric motor, 52. Impeller, 53. Filter cover, 54. Suction cup, 6. Nozzle, 611. Direct spray nozzle A, 612. Direct spray nozzle B, 62. Pin, 631. Nozzle C, 632. Nozzle D, 633. Nozzle E, 634. Nozzle F, 635. Nozzle G, 636. Nozzle H, 7. Light panel; 81. Solar charging and constant voltage supply module, 82. Communication and time control module I 2C, 83. Battery protection and drive control module, 84. Master MCU core module, 85. Water pump motor drive module, 86. Status indicator module (LED), 87. Fault and power supply indicator module, 88. Light beam and battery voltage detection module.
[0016] The above-mentioned accompanying drawings disclose clear embodiments of this utility model, which are described in more detail below. These drawings and descriptions are not intended to limit the scope of the invention in any way, but rather to explain the concepts of this utility model to those skilled in the art by means of specific embodiments. Specific embodiments
[0017] The technical solutions in the embodiments of the utility model are now clearly and completely described below in conjunction with the attached drawings in the embodiments of the utility model.
[0018] As from Fig. 1 to Fig. As shown in Figure 14, the multi-nozzle solar fountain according to the invention comprises a floating platform 1, a solar panel 2, a control box 4, a water pump 5, several nozzle sets 6, and a light panel 7. The solar panel 2 is mounted on the top of the floating platform 1 to convert light energy into electrical energy. Mounting holes for attaching the individual nozzle sets are provided in the central area of the floating platform 1. The control box 4, comprising an integrated control board, a battery, and a light sensor, is mounted on the underside of the floating platform 1 and is electrically connected to the solar panel 2 via cable. It provides energy storage, power distribution, and intelligent control of the entire system. The water pump 5 is electrically connected to the control box 4 via cable to draw operating current.Water is drawn from the bottom of a body of water by the water pump 5 and then pumped out to create a specific water feature through the connected nozzle 6. To ensure stable operation in various water environments, a suction cup 54 is attached to the underside of the water pump 5. This suction cup utilizes the vacuum adsorption effect to securely anchor the water pump to the bottom of the pond, effectively preventing any displacement due to the reaction force of the water flow or buoyancy.
[0019] As from Fig. As can be seen in Figure 2, a support frame 3 is detachably attached to the circumference of the floating platform 1 to further improve the overall stability of the device in open water or environments with wind waves and current disturbances. The support frame 3 comprises several telescopic rods 31 that can be rotated outwards by a specific angle or extended axially. These telescopic rods 31 are all arranged symmetrically around the edge of the floating platform 1. If all telescopic rods remain extended, the buoyancy of the floating platform 1 on the water surface is increased, thus improving its resistance to capsizing. A hook 32 is attached to the underside of the support frame 3, to which counterweights can be attached as needed to lower the overall center of gravity and thus achieve a stabilizing counterweight effect. This, in conjunction with the telescopic rods 31, provides double protection against tipping or overturning of the floating platform 1.
[0020] As from Fig. As can be seen in Figure 4, several nozzles 6 with various water jet patterns are provided according to the utility model. The universal pin 62 can be used to connect or change the nozzle 6 with the outlet of the water pump 5 according to personal preference or practical water feature requirements. The nozzles 6 include the direct spray nozzle A 611 with a single spray opening, which produces a single, concentrated jet of water as shown in Figure 4. Fig. 13 can be generated, and direct spray nozzle B 612 with three spray openings that produce a group of scattered water columns as shown in Fig. 12 can generate, and nozzle C 631 with obliquely arranged spray openings that produce a rotating flow pattern as shown in Fig. 4 and Fig. 6 can generate during water discharge, and nozzle D 632 with a combination of three central spray openings and six circumferential spray openings, which create a three-dimensional flower effect with a central column of water surrounded by circulating water splashes, as shown in Fig. 7 can produce, and nozzle E 633 with upward and outward-facing spray openings that produce a flower-like spray mist as shown in Fig. 8 can be generated, and nozzle F 634 with four linearly angled spray openings that produce a fan-shaped curtain of water as shown in Fig. 11 can produce, and nozzle G 635 with twelve upward-facing spray openings that produce a dense, upward-facing, bouquet-like water feature as shown in Fig. 9 can be achieved, and nozzle H 636 with skewed spray openings that can create a swirling floral pattern of interwoven water streams. This interchangeable arrangement with multiple nozzle types significantly improves the fountain's visual appeal and adapts better to different environments.
[0021] As from Fig. As can be seen in Figure 14, the water pump 5 comprises a built-in electric motor 51, an impeller 52 driven by the electric motor 51, and a filter cover 53 mounted on the edge of the impeller 52. The filter cover 53 can trap large particles such as tree leaves and fibers in the water and prevent these particles from entering the pump housing, where they could become entangled or block the impeller 52. This essentially eliminates any potential overloading of the motor 51 due to physical clogging.
[0022] As from Fig.As can be seen in Figure 5, the solar charging and constant voltage supply module 81 serves to stabilize the voltage fluctuation from the solar panel 2 and also to charge the integrated lithium-ion battery. The battery protection and drive control module 83 serves to monitor the lithium battery voltage in real time and will automatically interrupt the charging or discharging circuit if the voltage exceeds 4.2 V or falls below 3.0 V. The light beam and battery voltage detection module 88 continuously monitors the ambient light intensity with its light sensor and also detects the battery voltage. The water pump motor drive module 85 controls the operation of the electric motor 51 of the water pump 5 according to the control signal.The fault and power supply indicator module 87 monitors the operating current of the electric motor 51 in real time and will cause the indicator lamp to flash red as an alarm and simultaneously interrupt the power supply to the electric motor 51 as soon as an unusual current surge of more than 500 mA is detected. The status indicator module (LED) 86 can intuitively demonstrate the current operating status of the device to the user through various combinations of on / off switching and flashing of the individual LEDs. The master MCU core module 84 serves as the control center that coordinates the operation of all modules. The I2C communication and timing module 82 supports communication with external smart devices to enable intelligent functions such as remote control and time-controlled programming, thus creating a positive product experience.
[0023] The light panel 7, mounted on the edge of the floating platform 1, is preferably formed from ring-shaped LEDs. The switching on and off of the light panel 7 is automatically controlled by the control circuit depending on the ambient light intensity, which is detected by the light beam and battery voltage detection module 88. When the ambient light intensity falls below the preset threshold, the control circuit automatically switches on the light panel 7 to provide both landscape lighting and a safety indicator. When the ambient light intensity rises again to a higher level, the control circuit automatically switches off the light panel 7, thus ensuring intelligent energy-saving operation.
[0024] The operating principle of this utility model can be summarized as follows: In daylight and with sufficient sunlight, the solar panel 2 converts light energy into electrical energy. This energy is managed by the control circuit and used both to charge and store electricity in the lithium battery and to operate the water pump 5. The water flows through the selected nozzle 6 to create a pre-defined water feature. The control circuit automatically regulates operation depending on the ambient light intensity. When there is sufficient brightness, the water pump 5 is switched on. When there is insufficient brightness, the light panel 7 illuminates and the water pump 5 is switched on. Throughout operation, the circuit system continuously monitors the battery voltage and the motor current 51, ensuring both energy and motor safety.This results in comprehensive performance, combining energy self-sufficiency, diverse water feature effects, stability and reliability, intelligent control and multiple safety precautions.
[0025] The foregoing merely describes specific embodiments of the present utility model, to which the scope of protection of the present utility model is not limited. It should be noted that all modifications or replacements that are readily conceivable by persons skilled in the art within the technical framework described in the disclosure of the present utility model also fall within the scope of protection of this utility model.
[0026] The utility model relates to a multi-jet solar fountain comprising a floating plate, a solar panel arranged on the top of the floating plate, a detachably attached mounting frame around the perimeter of the floating plate, a control box fixed to the underside of the floating plate, a water pump electrically connected to the control box, several sets of jets, each of which can be selectively connected to the outlet of a water pump via a spigot, and a light panel attached to the edge of the floating plate, wherein the control box integrates a control circuit, a battery, and a light sensor, wherein the control circuit is arranged to automatically regulate the activation of the light panel depending on the light intensity and simultaneously manage the solar charging, battery protection, and monitoring of the electric motor status, wherein the mounting frame comprises several telescopic rods and several hooks.A suction cup is attached to the underside of the water pump, creating a triple mounting arrangement. This design allows for a variety of water feature effects using multiple interchangeable nozzle sets. It also features a light-controlled start function, battery protection, an electric motor blockage alarm, and power failure protection, thus overcoming the shortcomings of conventional solar fountains such as limited water jet patterns, insufficient stability, and a lack of circular protection.
Claims
[1] Multi-nozzle solar fountain, comprising: a floating plate (1), a solar panel (2) which is arranged on the top of the floating plate (1), a retaining frame (3) which is detachably attached to the edge of the floating plate (1), a control box (4) which is fixed to the underside of the floating plate (1) or electrically connected to the solar panel (2) and in which a control circuit, a lithium battery and a light sensor are integrated, a water pump (5) which is electrically connected to the control box (4) via cable, several sets of nozzles (6), each of which is optionally connected continuously to the outlet of the water pump (5) via a pin (62), and a light panel (7) which is attached to the edge of the floating plate (1) or electrically connected to the control box (4), the control circuit is arranged to automatically regulate the activation of the water pump (5) and the light panel (7) depending on the light intensity and at the same time to manage the solar charging, battery protection and monitoring of the electric motor status. [2] Multi-nozzle solar fountain according to claim 1, characterized by , that a suction cup (54) is attached to the underside of the water pump (5). [3] Multi-nozzle solar fountain according to claim 1, characterized by , that the support frame (3) comprises at least two telescopic rods (31) and at least two hooks (32), wherein the telescopic rods (31) are symmetrically distributed around the circumference of the floating plate (1), are rotatably mounted at one end on the floating plate (1) and are pivotable outwards by 60° and axially extendable, wherein the hooks (32) are attached to the underside of the support frame (3) and serve to suspend a counterweight. [4] Multi-nozzle solar fountain according to claim 1, characterized by, that the nozzle sets (6) comprise a direct spray nozzle A (611), a direct spray nozzle B (612), as well as a nozzle C (631), a nozzle D (632), a nozzle E (633), a nozzle F (634), a nozzle G (635) and a nozzle H (636), wherein the direct spray nozzle A (611) is configured with a single spray opening, and the direct spray nozzle B (612) is configured with three spray openings, while the nozzle C (631) has six obliquely arranged spray openings, and the nozzle D (632) has a combination of three centrally located spray openings and six circumferential spray openings, and the nozzle E (633) has eight upwardly and slightly outwardly directed spray openings, and the nozzle F (634) has four linearly obliquely arranged spray openings, and the nozzle G (635) has twelve upwardly directed spray openings, and the nozzle H (636) is arranged with eight diagonally offset spray openings. [5] Multi-nozzle solar fountain according to claim 1, characterized by, that the water pump (5) comprises an electric motor (51), an impeller (52), a filter cover (53) and four suction cups (54), wherein the filter cover (53) is a net-like structure that is attached to the outer circumference of the impeller (52), while the suction cups (54) are each symmetrically attached to the underside of the water pump (5). [6] Multi-nozzle solar fountain according to claim 1, characterized by , that the control circuit of the switch box (4) has the following configuration: a solar charging and constant voltage supply module (81) which draws electrical energy from the solar panel (2) and then forwards it to charge the lithium battery, a battery protection and drive control module (83) which interrupts the circuit when the voltage of the lithium battery is above 4.2 V or below 3.0 V, a light beam and battery voltage detection module (88) arranged for detecting the ambient light intensity and the battery voltage, a water pump motor drive module (85) intended for the electric motor (51) of the water pump (5), Fault and power supply indicator module (87), which issues a corresponding alarm in the event of a motor current fault and simultaneously interrupts the power supply to the motor, Master MCU core module (84), which is intended to coordinate the individual module operations. [7] Multi-nozzle solar fountain according to claim 1, characterized by , that the light panel (7) is ring-shaped and will automatically light up when the light intensity falls below 1000 lux, and will automatically switch off when the light intensity reaches or exceeds 5000 lux. [8] Multi-nozzle solar fountain according to claim 6, characterized by, that the fault and power supply indicator module (87) causes the red indicator light to flash and simultaneously interrupts the power supply to the motor if the motor current of the water pump (5) exceeds 500 mA. [9] Multi-nozzle solar fountain according to claim 6, characterized by , that the control circuit further comprises a status indicator module (LED)(86) with LED1 to LED4, wherein LED1, when continuously lit, represents the device being put into operation, LED2, when continuously lit, represents a ready state, LED3, when continuously lit, represents the ongoing charging of the lithium battery, and LED4, when flashing, represents a countdown of the timer function. [10] Multi-nozzle solar fountain according to claim 1, characterized by , that in the main board of the control box (4) a communication and time control module I 2 C (82) is integrated, which enables communication with external devices and can also configure time control functions.