Energy-saving water pressure feedback automatic speed regulation bathtub pump

The automatic speed-regulating bathtub pump, which uses pressure regulation components and laser ranging feedback, solves the problems of high energy consumption and equipment aging when the water pressure demand changes. It achieves precise water pressure control and energy-saving operation, thereby improving the service life of the equipment and the user experience.

CN224161845UActive Publication Date: 2026-04-24NINGBO HONGTONG ELECTROMECHANICAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO HONGTONG ELECTROMECHANICAL
Filing Date
2025-06-13
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing bathtub pumps are difficult to control precisely when water pressure demand changes, resulting in high energy consumption, rapid equipment aging and frequent maintenance, and inconvenient mechanical valve adjustment.

Method used

The automatic speed-regulating bathtub pump, which uses pressure regulation components and laser ranging feedback, adjusts the water flow channel through the linear displacement of the sealing plate. Combined with a flow sensing module and control motor, it achieves on-demand power supply and is equipped with a wireless communication module and alarm device.

Benefits of technology

It achieves precise water pressure regulation, reduces energy consumption, extends equipment life, lowers maintenance costs, and improves user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224161845U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of bathtub pumps, in particular to an energy-saving water pressure feedback automatic speed regulation bathtub pump which comprises a speed regulation pump, a water inlet pipe is arranged at the upper end of the speed regulation pump, an auxiliary box is arranged at the upper end of the water inlet pipe, a pressure regulation assembly is arranged in the auxiliary box, and a connecting pipe is arranged at the upper end of the auxiliary box. An output pipe is arranged on one side of the speed regulating pump, the pressure regulating assembly comprises a sealing plate, a rotating rod and a control motor, the distance sensing assembly comprises a laser transmitter and a laser receiver, and a flow sensing module is arranged in the connecting pipe and can sense water flow pressure changes in real time and rapidly and accurately adjust the opening degree of the sealing plate. The sectional area of a water flow channel is optimized, idling energy consumption when the water flow requirement is low is avoided, electric energy waste is remarkably reduced, and therefore on-demand energy supply is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of bathtub pump technology, specifically an energy-saving water pressure feedback automatic speed-regulating bathtub pump. Background Technology

[0002] As is well known, in the existing bathroom equipment industry, the bathtub circulation pump is the core component for maintaining water circulation and realizing massage and rapid water injection and drainage functions. Traditional bathtub pumps generally use a fixed-speed motor to drive the impeller to rotate, and control the water pressure output through mechanical valves or manual adjustment of the flow rate, which is very inconvenient.

[0003] Specifically, existing bathtub pumps always operate at maximum power during use, even when water pressure demand is low (such as slow water filling or heat preservation circulation). This not only accelerates equipment aging and frequent maintenance and replacement, increasing operating costs, but also increases energy consumption. Some equipment uses mechanical valves (such as butterfly valves and ball valves) to adjust the water flow cross-sectional area to control water pressure, but most of them are operated manually, making it difficult to accurately control the valve opening and resulting in large fluctuations in water pressure. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an energy-saving water pressure feedback automatic speed-regulating bathtub pump.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving water pressure feedback automatic speed-regulating bathtub pump, including a speed-regulating pump, an inlet pipe at the upper end of the speed-regulating pump, an auxiliary box at the upper end of the inlet pipe, a pressure regulating component inside the auxiliary box, a connecting pipe at the upper end of the auxiliary box, and an output pipe on one side of the speed-regulating pump.

[0008] To achieve linear displacement adjustment, the present invention includes the following improvements: the pressure adjustment assembly includes a sealing plate, a rotating rod, and a control motor. The rotating rod passes through the auxiliary box, and the control motor is located on one side of the auxiliary box. One end of the rotating rod is connected to the output end of the control motor. The sealing plate is on the rotating rod and threadedly connected to it. The sealing plate is slidably connected to the inner wall of the auxiliary box. An auxiliary opening is provided on one side of the auxiliary box, and the sealing plate passes through the auxiliary opening and is slidably connected to it. A distance sensing component is provided on the pressure adjustment assembly.

[0009] To track the displacement of the sealing plate in real time, the present invention is improved as follows: the distance sensing component includes a laser emitter and a laser receiver, the laser receiver is located on the inner side wall of the auxiliary box, the laser emitter is located on one side wall of the sealing plate, and the laser emitter and the laser receiver are signal connected.

[0010] To detect changes in water flow in real time, this utility model is improved by including a flow sensing module inside the connecting pipe.

[0011] To visually indicate overload, blockage, or sensor malfunction, this invention includes an improvement: an alarm light is installed on the speed regulating pump.

[0012] To reduce the risk of leakage after long-term use, the present invention is improved as follows: the surface of the sealing plate is covered with a wear-resistant rubber layer, and the edge is provided with an annular sealing protrusion, which is adapted to the inner wall of the auxiliary box.

[0013] In order to remotely set pressure parameters and view operating status, the present invention has the following improvements: the top of the auxiliary box is equipped with a wireless communication module, which supports remote adjustment of pressure threshold and viewing of real-time water pressure data through a mobile terminal.

[0014] To prevent moisture and dust from entering and to ensure the penetration of the laser signal, the present invention is improved by encapsulating both the laser transmitter and the laser receiver with a transparent protective cover, the surface of which is coated with a hydrophobic and anti-fog coating.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides an energy-saving water pressure feedback automatic speed-regulating bathtub pump, which has the following beneficial effects:

[0017] This energy-saving water pressure feedback automatic speed-regulating bathtub pump is equipped with a pressure regulation component and laser ranging feedback. It can sense changes in water pressure in real time and quickly and accurately adjust the opening of the sealing plate to optimize the cross-sectional area of ​​the water flow channel. This avoids "idling and consuming energy" when the water flow demand is low, significantly reducing energy waste and thus achieving on-demand energy supply.

[0018] The flow sensing module inside the connecting pipe monitors the diversion status of multiple water outlet terminals. When a sudden increase in flow is detected, the motor is linked to expand the opening of the sealing plate and simultaneously increase the speed of the water pump to complete the water pressure compensation in one go. This linkage mechanism replaces the traditional step-by-step adjustment of "first reducing pressure and then increasing speed", reducing energy loss in the intermediate process.

[0019] The annular protrusions on the edge of the sealing plate fit tightly against the inner wall of the auxiliary box, and the wear-resistant rubber layer on the surface maintains high sealing performance during long-term use, preventing energy loss caused by pressure leakage. Attached Figure Description

[0020] Figure 1 This is a first-view schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a second-view schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the interior of the auxiliary box of this utility model;

[0023] Figure 4 This is a schematic diagram of the interior of the auxiliary box of this utility model.

[0024] In the diagram: 1. Speed-regulating pump; 2. Alarm light; 3. Water inlet pipe; 4. Output pipe; 5. Auxiliary box; 6. Control motor; 7. Connecting pipe; 8. Sealing plate; 9. Rotating rod; 10. Laser receiver; 11. Laser emitter. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figure 1-4An energy-saving water pressure feedback automatic speed-regulating bathtub pump includes a speed-regulating pump 1. A water inlet pipe 3 is installed at the upper end of the speed-regulating pump 1. An auxiliary box 5 is installed at the upper end of the water inlet pipe 3. A pressure regulating component is installed inside the auxiliary box 5. A connecting pipe 7 is installed at the upper end of the auxiliary box 5. An output pipe 4 is installed on one side of the speed-regulating pump 1. The pressure regulating component includes a sealing plate 8, a rotating rod 9, and a control motor 6. The rotating rod 9 passes through the auxiliary box 5. The control motor 6 is located on one side of the auxiliary box 5. One end of the rotating rod 9 is connected to the output end of the control motor 6. The sealing plate 8 is located on the rotating rod. The sealing plate 8 is threadedly connected to the inner wall of the auxiliary box 5 and is slidably connected to it. An auxiliary port is provided on one side of the auxiliary box 5. The sealing plate 8 passes through the auxiliary port and is slidably connected to it. A distance sensing component is provided on the pressure regulating component. The distance sensing component includes a laser emitter 11 and a laser receiver 10. The laser receiver 10 is on the inner wall of the auxiliary box 5, and the laser emitter 11 is on the side wall of the sealing plate 8. The laser emitter 11 and the laser receiver 10 are signal connected. A flow sensing module is provided inside the connecting pipe 7.

[0029] During use, the connecting pipe 7 is connected to an external water supply pipe (such as a bathtub water inlet pipe) to form a complete water flow channel (inlet pipe 3 → auxiliary box 5 → connecting pipe 7 → outlet pipe 4 → water terminal). After power is supplied, the speed regulating pump 1 is in standby mode by default. The flow sensing module monitors the water flow dynamics in the connecting pipe 7 in real time. When the user turns on the water terminal (such as a shower head or massage nozzle), water flows through the connecting pipe 7. The flow sensing module immediately detects the flow change and transmits the signal to the control motor 6. The control motor 6 starts and drives the rotating rod 9 to rotate. Under the limit of the auxiliary box 5, the sealing plate 8 moves linearly along the axis of the rotating rod 9 through threaded engagement (e.g., forward rotation increases the opening, and reverse rotation decreases the opening). When the sealing plate 8 slides outward from the auxiliary box 5, it penetrates the auxiliary port, increasing the effective flow area inside the auxiliary box 5, reducing water flow resistance, and increasing the water pressure in the main pipe. When the sealing plate 8 slides inward, the auxiliary box 5 gradually closes, restricting water flow. The laser emitter 11 on its side wall continuously emits a beam of light, and the laser receiver 10 on the inner side wall of the auxiliary box 5 captures the position of the light spot. The displacement of the sealing plate 8 (i.e., the opening of the auxiliary port) is linearly related to the offset of the light spot of the laser receiver 10. The system calculates the precise opening value based on this. If the actual opening deviates from the flow requirement by more than a threshold, the control motor 6 automatically adjusts the angle of the rotating rod 9 to ensure stable water pressure. The speed-regulating pump 1 dynamically adjusts the motor power according to the opening of the sealing plate 8 and the laser ranging feedback data. (Opening > 80% (high water pressure requirement): the pump operates at rated power to quickly inject water or support multiple nozzles to work simultaneously; 0% ≤ opening ≤ 80% (normal requirement): the pump operates in the high-efficiency range to balance energy consumption and water pressure stability; opening < 30% (low requirement): the pump speed is reduced to energy-saving mode to maintain only the basic circulation pressure). When the sealing plate 8 is completely closed (opening 0%), the laser receiver 10 detects no displacement signal, and the speed-regulating pump 1 immediately cuts off the power to completely eliminate idling and energy consumption.

[0030] In practical use, it is necessary to intuitively display overload, blockage, or sensor malfunction to shorten troubleshooting time. To meet the above requirements, in this embodiment, the speed regulating pump 1 is equipped with an alarm light 2.

[0031] If the flow sensor detects a blockage in the pipe or an overload of water usage (such as a sudden increase in flow to a safe threshold), the control motor 6 drives the sealing plate 8 to close quickly, and at the same time the speed regulating pump 1 stops and triggers the alarm light 2 to flash.

[0032] In actual use, it is necessary to adapt to the deformation of the inner wall of the auxiliary box 5 and reduce the risk of water leakage after long-term use. In order to meet the above requirements, in this embodiment, the surface of the sealing plate 8 is covered with a wear-resistant rubber layer, and the edge is provided with an annular sealing protrusion, which is adapted to the inner wall of the auxiliary box 5.

[0033] In actual use, it is necessary to remotely set pressure parameters and check the operating status to improve the user experience. In order to meet the above requirements, in this embodiment, the top of the auxiliary box 5 is equipped with a wireless communication module, which supports remote adjustment of pressure threshold and viewing of real-time water pressure data through a mobile terminal.

[0034] In actual use, it is necessary to isolate water vapor and dust from entering and ensure the penetration of laser signals. In order to meet the above requirements, in this embodiment, both the laser transmitter 11 and the laser receiver 10 are encapsulated with transparent protective covers, and the surface of the protective covers is coated with a hydrophobic and anti-fog coating.

[0035] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended only as examples, not as limiting the scope of protection of this application.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving water pressure feedback automatic speed-regulating bathtub pump, comprising a speed-regulating pump (1), characterized in that: The speed-regulating pump (1) is provided with an inlet pipe (3) at its upper end, and an auxiliary box (5) is provided at the upper end of the inlet pipe (3). A pressure regulating component is provided inside the auxiliary box (5), and a connecting pipe (7) is provided at the upper end of the auxiliary box (5). An output pipe (4) is provided on one side of the speed-regulating pump (1).

2. The energy-saving water pressure feedback automatic speed-regulating bathtub pump according to claim 1, characterized in that: The pressure regulating assembly includes a sealing plate (8), a rotating rod (9), and a control motor (6). The rotating rod (9) passes through the auxiliary box (5). The control motor (6) is located on one side of the auxiliary box (5). One end of the rotating rod (9) is connected to the output end of the control motor (6). The sealing plate (8) is on the rotating rod (9) and threadedly connected to it. The sealing plate (8) is slidably connected to the inner wall of the auxiliary box (5). An auxiliary port is provided on one side of the auxiliary box (5). The sealing plate (8) passes through the auxiliary port and is slidably connected to it. A distance sensing component is provided on the pressure regulating assembly.

3. The energy-saving water pressure feedback automatic speed-regulating bathtub pump according to claim 2, characterized in that: The distance sensing component includes a laser emitter (11) and a laser receiver (10). The laser receiver (10) is located on the inner side wall of the auxiliary box (5), and the laser emitter (11) is located on the side wall of the sealing plate (8). The laser emitter (11) and the laser receiver (10) are connected by a signal.

4. The energy-saving water pressure feedback automatic speed-regulating bathtub pump according to claim 1, characterized in that: A flow sensing module is installed inside the connecting pipe (7).

5. The energy-saving water pressure feedback automatic speed-regulating bathtub pump according to claim 1, characterized in that: An alarm light (2) is installed on the speed regulating pump (1).

6. The energy-saving water pressure feedback automatic speed-regulating bathtub pump according to claim 2, characterized in that: The surface of the sealing plate (8) is covered with a wear-resistant rubber layer, and the edge is provided with an annular sealing protrusion, which is adapted to the inner wall of the auxiliary box (5).

7. The energy-saving water pressure feedback automatic speed-regulating bathtub pump according to claim 1, characterized in that: The auxiliary box (5) is equipped with a wireless communication module on its top, which supports remote adjustment of the pressure threshold and viewing of real-time water pressure data via a mobile terminal.

8. The energy-saving water pressure feedback automatic speed-regulating bathtub pump according to claim 3, characterized in that: Both the laser emitter (11) and the laser receiver (10) are encapsulated with transparent protective covers, and the surface of the protective covers is coated with a hydrophobic and anti-fog coating.