Electric water flow regulating valve for instant water heater
By designing an electric water flow regulating valve on the instant water heater and using a motor-driven gear system to control the rotation of the valve core, the problem of low water temperature in winter is solved, and the consistency of automatic adjustment of water volume and temperature is achieved.
Patent Information
- Application Number
- CN202423113934.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing instant water heaters have low water temperatures in winter, requiring manual adjustment of the inlet valve to regulate the water flow. Furthermore, they cannot allow water to remain in the heater for extended periods to heat up, resulting in inconsistent temperatures.
Design an electric water flow regulating valve for instant water heaters. The valve core is controlled to rotate by a motor-driven gear system to achieve intermittent and continuous water flow. Combined with a temperature sensor and micro switch, the water volume is automatically adjusted to increase the outlet water temperature.
It achieves automatic water flow adjustment under the same power, improves the stability of the outlet water temperature, avoids manual adjustment, and ensures consistent water temperature.
Smart Images

Figure CN223868576U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water flow regulating valves, and in particular to an electric water flow regulating valve for use in instantaneous water heaters. Background Technology
[0002] Water heaters are common bathing appliances, but due to the large temperature difference between winter and summer, the water temperature is low in winter. Since the power of the water heater is constant, it is not enough to heat the water to the preset temperature under the same flow rate. This often results in the actual temperature being inconsistent with the set temperature in winter. It is necessary to manually adjust the size of the inlet valve to adjust the water flow, and it is also impossible to keep the water in the water heater for a short time to achieve the heating effect, resulting in the water temperature being too low. Utility Model Content
[0003] Based on this, the present invention aims to overcome the defects of the prior art and provide an electric water flow regulating valve for instant water heaters. This can solve the problem that the prior art requires manual adjustment of the size of the inlet valve to regulate the water volume, and it cannot allow the water to stay in the water heater for a short time to achieve the heating effect, resulting in low water temperature.
[0004] The objective of this utility model is achieved through the following technical solution.
[0005] The purpose of this utility model is to provide an electric water flow regulating valve for an instant water heater, comprising a pipe body with an inlet and an outlet. The pipe body has a first cavity and a second cavity. The first cavity contains a first empty space, and a motor is installed within the first empty space. The second cavity is located to one side of the first cavity and contains a second empty space, which is connected to the inside of the pipe body. The motor has a first gear, and the second cavity contains a rotatable valve core. A second gear is located at the end of the valve core, and the first gear drives the second gear to rotate. The valve core has a first through hole, which corresponds to the inside of the pipe body.
[0006] The second gear mentioned above has a sector-shaped structure, and the motor rotates back and forth clockwise and counterclockwise.
[0007] The second gear is provided with limiting protrusions on both sides. The first gear meshes and rotates within the second gear, and is limited within the limiting protrusions on both sides.
[0008] A fixing seat is installed on the second cavity, and the valve core passes through the fixing seat to seal it.
[0009] A micro switch is installed on the aforementioned mounting base. The micro switch causes the second gear to rotate, thereby engaging the micro switch.
[0010] The tube body described above is provided with a second through hole, and a temperature sensor is installed in the second through hole.
[0011] A water flow rotor is installed inside the aforementioned pipe.
[0012] A plugging ring is provided inside the aforementioned pipe.
[0013] A filter screen is provided at the end of the aforementioned water inlet, the filter screen being located at one end of the plugging ring, and a thread is provided at the end of the pipe body.
[0014] Compared with the prior art, this utility model has the following advantages:
[0015] 1) This utility model describes an electric water flow regulating valve for an instant water heater, including a pipe body with an inlet and an outlet. The pipe body has a first cavity and a second cavity. The first cavity contains a first empty space and a motor. The second cavity is located to one side of the first cavity and contains a second empty space connected to the pipe body. The motor has a first gear, and the second cavity contains a rotatable valve core. The valve core has a second gear at its end. The first gear drives the second gear to rotate. The valve core has a first through hole corresponding to the inside of the pipe body. The first gear of the motor drives the second gear, which in turn drives the valve core to rotate in the second cavity. During rotation, the first through hole of the valve core intermittently connects with the pipe body to allow water to flow out. When the connection is broken, the water flow is blocked, thus temporarily stopping the continuous heating of water in the water heater without requiring manual adjustment of the inlet valve's flow rate, thereby increasing the outlet water temperature under the same power.
[0016] 2) Other advantages of this utility model are described in detail in the embodiment section of the specification. Attached Figure Description
[0017] Figure 1 This is a perspective view of the electric water flow regulating valve provided in an embodiment of this utility model;
[0018] Figure 2 This is a perspective view of the electric water flow regulating valve provided in an embodiment of this utility model;
[0019] Figure 3 This is a cross-sectional view of the electric water flow regulating valve provided in this embodiment of the utility model;
[0020] Figure 4 This is an exploded view of the electric water flow regulating valve provided in this embodiment of the utility model;
[0021] Figure 5 This is an exploded view of the electric water flow regulating valve provided in this embodiment of the utility model. Detailed Implementation
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0025] like Figures 1 to 5As shown, this embodiment provides an electric water flow regulating valve for an instantaneous water heater, including a pipe body 1. The pipe body 1 includes an inlet 101 and an outlet 102. Water from the water heater is connected to the inlet 101 of the water flow regulating valve. The pipe body 1 is provided with a first cavity 11 and a second cavity 12. The first cavity 11 has a first empty space, and a motor 2 is installed in the first empty space. The second cavity 12 is located on one side of the first cavity 11, and a second empty space is installed in the second cavity 12. The second empty space is connected to the inside of the pipe body 1. The motor 2 is provided with a first gear 21, and a movable rotatable gear is installed in the second empty space. The valve core 3 has a second gear 31 at its end. The first gear 21 drives the second gear 31 to rotate. The valve core 3 has a first through hole 32, which corresponds to the inside of the pipe body 1. The first gear 21 of the motor 2 drives the second gear 31, which in turn drives the valve core 3 to rotate in the second cavity. During the rotation of the first through hole 32 of the valve core 3, it intermittently communicates with the inside of the pipe body 1 to allow water to flow out. When the communication is interrupted, the water flow is blocked, which can temporarily stop the flow and allow the water to be continuously heated in the water heater without the need for manual adjustment of the water inlet valve. This increases the temperature of the water at the same power.
[0026] Furthermore, the second gear 31 has a sector-shaped structure, which can reduce space. The motor 2 rotates back and forth clockwise and counterclockwise. When the first gear and the second gear mesh, the second gear swings back and forth within the outer circumference of the sector.
[0027] Furthermore, the second gear 31 is provided with limiting protrusions 311 on both sides. The first gear 21 meshes and rotates within the second gear 31 and is limited within the limiting protrusions 311 on both sides. The limiting protrusions 311 can prevent tooth dragging.
[0028] Furthermore, a fixing seat 13 is installed on the second cavity 12, and the valve core 3 passes through the fixing seat 13 to seal it. The fixing seat 13 is used to cover the second cavity 12.
[0029] Furthermore, a micro switch 14 is installed on the fixed base 13. The micro switch 14 causes the second gear 31 to rotate, thereby engaging the micro switch 14 and achieving a zero-reset state.
[0030] Furthermore, a second through hole 103 is provided on the pipe body 1, and a temperature sensor 4 is installed in the second through hole 103. The temperature sensor 4 is used to sense the temperature of the water and feed the detected temperature back to the main board of the water heater.
[0031] Furthermore, a water flow rotor 5 is provided inside the pipe body 1. The water flow rotor 5 includes a shell and a propeller, which can increase the frequency of water flow.
[0032] Furthermore, a blocking ring 6 is provided inside the pipe body 1, which supports the water flow rotor 5 to push against the position of the Hall flow sensor.
[0033] Furthermore, a filter screen 7 is provided at the end of the water inlet 102. The filter screen 7 is located at one end of the plugging ring 6. The filter screen 7 can filter impurities and prevent blockage. The end of the pipe body 1 is provided with threads for connecting the upper and lower pipes.
[0034] Existing technologies require manual adjustment of the inlet valve to regulate water flow, and cannot allow water to remain in the water heater briefly for heating, resulting in low water temperature. To solve this problem, an electric water flow regulating valve for instant water heaters is provided. This valve consists of a first cavity 11 and a second cavity 12 on a pipe body 1. A motor 2 is installed in the first cavity, and the second cavity is connected to the inside of the pipe body 1. A first gear 21 is installed on the motor 2, and a rotatable valve core 3 is installed in the second cavity. A second gear 31 is installed at the end of the valve core 3. A gear 21 drives a second gear 31 to rotate. The valve core 3 is provided with a first through hole 32, which corresponds to the inside of the pipe body 1. The first gear 21 of the motor 2 drives the second gear 31, and the second gear 31 drives the valve core 3 to rotate in the second cavity. During the rotation of the first through hole 32 of the valve core 3, it intermittently communicates with the inside of the pipe body 1 to release water. When it is not connected, it will block the water from continuing to flow, so that it can be stopped temporarily, allowing the water to be continuously heated in the water heater without the need to manually adjust the water flow of the inlet valve, thereby increasing the temperature of the water at the same power.
[0035] When the water heater's power is exhausted and the set temperature cannot be reached, the main control board on the water heater will send a command to the motor to reduce its speed, allowing the water to stay in the water heater for a longer time to heat it.
[0036] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model are equivalent substitutions and are included within the protection scope of the present utility model.
Claims
1. An electric water flow regulating valve for an instantaneous water heater, comprising a pipe body (1), the pipe body (1) including an inlet (101) and an outlet (102), the pipe body (1) being provided with a first cavity (11) and a second cavity (12), the first cavity (11) being provided with a first cavity, the first cavity being provided with a motor (2), the second cavity (12) being located on one side of the first cavity (11), the second cavity (12) being provided with a second cavity, the second cavity being connected to the inside of the pipe body (1), characterized in that: The motor (2) is provided with a first gear (21), and the second cavity is provided with a movable valve core (3). The end of the valve core (3) is provided with a second gear (31). The first gear (21) drives the second gear (31) to rotate. The valve core (3) is provided with a first through hole (32), which corresponds to the inside of the tube (1).
2. The electric water flow regulating valve for an instantaneous water heater according to claim 1, characterized in that: The second gear (31) has a sector-shaped structure, and the motor (2) rotates back and forth clockwise and counterclockwise.
3. An electric water flow regulating valve for an instantaneous water heater according to claim 2, characterized in that: The second gear (31) has limiting protrusions (311) on both sides. The first gear (21) rotates in the second gear (31) and is limited within the limiting protrusions (311) on both sides.
4. An electric water flow regulating valve for an instantaneous water heater according to claim 1, characterized in that: A fixed seat (13) is installed on the second cavity (12), and the valve core (3) passes through the fixed seat (13) to seal it.
5. An electric water flow regulating valve for an instantaneous water heater according to claim 4, characterized in that: A micro switch (14) is installed on the fixed base (13). The micro switch (14) causes the second gear (31) to rotate to engage with the micro switch (14).
6. An electric water flow regulating valve for an instantaneous water heater according to claim 1, characterized in that: The tube body (1) is provided with a second through hole (103), and a temperature sensor (4) is installed in the second through hole (103).
7. An electric water flow regulating valve for an instantaneous water heater according to claim 1, characterized in that: A water flow rotor (5) is installed inside the pipe body (1).
8. An electric water flow regulating valve for an instantaneous water heater according to claim 1, characterized in that: A plugging ring (6) is provided inside the pipe body (1).
9. An electric water flow regulating valve for an instantaneous water heater according to claim 8, characterized in that: The end of the water inlet (101) is provided with a filter screen (7), the filter screen (7) is located at one end of the plug ring (6), and the end of the pipe body (1) is provided with threads.