Water quantity adjusting device and gas water heater

Abstract

The utility model discloses a water quantity regulating device and gas water heater, the casing of water quantity regulating device has liquid inlet and liquid outlet, and the valve core has water inlet and water outlet, and the valve core has hollow chamber, and spring sets up in hollow chamber, and the axial opening of spring is in communication with liquid inlet, and the circumferential side portion of spring is opposite with water inlet, and water outlet is in communication with liquid outlet, water flow enters after from liquid inlet, and in turn passes through the axial opening of spring, the circumferential side portion of spring, water inlet and water outlet, and flows to liquid outlet, and spring is stretched or compressed under the action of tension and pressure adjusting part to change the flow area of circumferential side portion of spring.

Description

Technical Field

[0001] This utility model relates to a water volume regulating device and a gas water heater. Background Technology

[0002] To achieve optimal temperature control, existing gas water heaters are equipped with water flow servo devices to regulate water flow and achieve precise temperature control. Current technology typically uses solenoid valves for this regulation, but solutions with solenoid valves cannot provide stepless adjustment; they only offer two settings. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defect that the water volume regulating device in the prior art cannot achieve stepless regulation of water volume, and to provide a water volume regulating device and a gas water heater.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A water volume regulating device includes a housing and a valve core, a spring, and a tension / compression adjusting part disposed within the housing. The housing has a liquid inlet and a liquid outlet, and the valve core has a water inlet and a water outlet.

[0006] The valve core has a hollow cavity, the spring is disposed in the hollow cavity, and the axial opening of the spring is connected to the liquid inlet. The circumferential side of the spring is directly opposite the water inlet, and the water outlet is connected to the liquid outlet. After the water flows in from the liquid inlet, it passes through the axial opening of the spring, the circumferential side of the spring, the water inlet and the water outlet in sequence, and flows out to the liquid outlet.

[0007] The spring is stretched or compressed under the action of the tension / compression adjustment part to change the flow area of ​​the circumferential side of the spring.

[0008] In this design, the spring is subjected to the tension and compression adjustment section, which changes the flow area of ​​its circumferential side. This change in flow area can directly change the flow rate of water entering the water inlet, thereby achieving water volume regulation. Furthermore, this change in flow area is stepless, thus enabling stepless regulation of water volume.

[0009] Preferably, the tension / compression adjustment unit includes a first magnet, a second magnet, and a control unit. The first magnet and the second magnet are respectively disposed at both ends of the spring along the axial direction, and the control unit is used to control the relative axial positions of the first magnet and the second magnet.

[0010] In this solution, the axial relative position between the first magnet and the second magnet can be controlled by the control unit, thereby adjusting the amount of stretching or compression of the spring, and thus adjusting the flow area of ​​the circumferential side of the spring.

[0011] Preferably, the control unit is a coil arranged circumferentially around at least a portion of the assembly formed by the first magnet, the spring, and the second magnet, and the coil is configured to change the axial relative position of the first magnet and the second magnet when energized.

[0012] In this solution, the axial relative position of the first and second magnets is controlled by energizing the coil, which makes the control process more precise and improves the accuracy of water volume regulation.

[0013] Preferably, the valve core includes an inner ring wall, an outer ring wall, and an end wall. The inner ring wall and the outer ring wall are spaced around the surface of the end wall. The inner ring wall forms the hollow cavity, and the water inlet is disposed on the inner ring wall. The end wall is provided with the water outlet at a position directly opposite to the space between the inner ring wall and the outer ring wall. The coil is disposed on the outside of the outer ring wall.

[0014] Preferably, the outer ring wall has multiple annular protrusions on its outer side, and an installation space is formed between two adjacent annular protrusions, and the coil is installed in the installation space.

[0015] Preferably, there are multiple water inlets and multiple water outlets, with the multiple water inlets arranged around the inner ring wall and the multiple water outlets arranged around the end wall.

[0016] Preferably, the inner surface of the end wall is provided with a boss, and a first mounting groove is formed between the boss and the inner ring wall, and the second magnet is installed in the first mounting groove.

[0017] Preferably, the housing includes a housing body and an end cap. One end of the inner side of the housing body is provided with a step, and the end cap is disposed at the other end of the housing body. The valve core is installed between the step and the end cap. The end cap has an extension wall at its center, the extension wall forming the liquid inlet and the step forming the liquid outlet. A second mounting groove is formed between the extension wall and the valve core, and the first magnet is installed in the second mounting groove.

[0018] Preferably, the spring is a tower spring.

[0019] A gas water heater, the gas water heater including the water flow regulating device as described above.

[0020] The positive and progressive effects of this utility model are as follows: the spring is subjected to the tension and compression adjustment part, which changes the flow area of ​​its circumferential side. This change in flow area can directly change the flow rate of water entering the water inlet, thereby realizing the regulation of water volume. Moreover, the change in flow area is stepless, thus realizing stepless regulation of water volume. Attached Figure Description

[0021] Figure 1 A schematic diagram of the external structure of the water volume regulating device provided in an embodiment of this utility model;

[0022] Figure 2 Another perspective view of the external structure of the water volume regulating device provided in this embodiment of the utility model;

[0023] Figure 3 A cross-sectional plan view of the water volume regulating device provided in an embodiment of this utility model;

[0024] Figure 4 A cross-sectional perspective view of the water volume regulating device provided in an embodiment of the present utility model;

[0025] Figure 5 A cross-sectional perspective view of the water volume regulating device provided in an embodiment of the present utility model;

[0026] Figure 6 This is a three-dimensional cross-sectional view of the valve core provided in an embodiment of the present utility model.

[0027] Explanation of reference numerals in the attached figures

[0028] Water volume regulating device 1, housing 100, inlet 101, outlet 102, housing body 110, step 111, end cap 120, extension wall 121, valve core 200, water inlet 201, water outlet 202, hollow chamber 203, inner ring wall 210, outer ring wall 220, annular protrusion 221, end wall 230, boss 231, spring 300, axial opening 301, circumferential side 302, tension / compression adjusting part 400, first magnet 410, second magnet 420, coil 430. Detailed Implementation

[0029] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0030] This utility model provides a water volume regulating device 1, such as... Figure 1 , Figure 2 and Figures 3-6As shown, the water volume regulating device 1 includes a housing 100 and a valve core 200, a spring 300, and a tension / pressure regulating part 400 disposed within the housing 100. The housing 100 has an inlet 101 and an outlet 102. The valve core 200 has a water inlet 201 and a water outlet 202, and a hollow chamber 203. The spring 300 is disposed within the hollow chamber 203, and the axial opening 301 of the spring 300 communicates with the inlet 101. The circumferential side 302 of the spring 300 is directly opposite the water inlet 201, and the water outlet 202 is connected to the liquid outlet 102. After entering through the liquid inlet 101, the water flows sequentially through the axial opening 301 of the spring 300, the circumferential side 302 of the spring 300, the water inlet 201, and the water outlet 202, and flows out towards the liquid outlet 102. The spring 300 is stretched or compressed under the action of the tension-compression adjustment part 400 to change the flow area of ​​the circumferential side 302 of the spring 300. The change in the flow area of ​​the circumferential side 302 of the spring 300 under the action of the tension-compression adjustment part 400 can directly change the flow rate of water entering the water inlet 201, thereby realizing the regulation of water volume. Moreover, the change in the flow area is stepless, thereby realizing the stepless regulation of water volume.

[0031] like Figure 3 , Figure 4 and Figure 5 As shown, the spring 300 is a tension spring 300. Its spiral winding structure has a gap between adjacent turns. When subjected to tension or compression force, the size of the gap will be changed. The gap is also located on the flow path from the liquid inlet 101 to the water inlet 201, thereby changing the flow area.

[0032] In specific implementations, the tension / compression adjustment unit 400 can adopt different structural forms. Preferably, it adopts the structure of a first magnet 410, a second magnet 420, and a control unit. In other embodiments, the tension / compression adjustment unit 400 may also have only one magnet and a control unit, with the control unit and magnet respectively disposed on both sides of the spring 300. The control unit can be a coil, which can attract or release the magnet, thus also exerting a stretching and compressing effect on the spring 300. The following will specifically describe the first magnet 410, the second magnet 420, and the control unit as examples.

[0033] like Figure 3 , Figure 4 and Figure 5As shown, the first magnet 410 and the second magnet 420 are respectively disposed at both axial ends of the spring 300, and the control unit is used to control the axial relative position of the first magnet 410 and the second magnet 420. By controlling the axial relative position between the first magnet 410 and the second magnet 420, the tension or compression of the spring 300 can be adjusted, thereby adjusting the flow area of ​​the circumferential side portion 302 of the spring 300. Furthermore, since the first magnet 410 and the second magnet 420 are respectively disposed at both axial ends of the spring 300, forces can be applied simultaneously to both ends of the spring 300, resulting in a more balanced application of force and facilitating changes in the flow area.

[0034] Furthermore, the control unit is a coil 430, which is arranged circumferentially around at least a portion of the assembly formed by the first magnet 410, the spring 300, and the second magnet 420. The coil 430 is configured to change the axial relative position of the first magnet 410 and the second magnet 420 when energized. By controlling the axial relative position of the first magnet 410 and the second magnet 420 through energizing the coil 430, the control process is more precise, thereby improving the accuracy of water flow regulation. Specifically, as... Figure 3 , Figure 4 and Figure 5 As shown, coil 430 is preferably located at the middle position in the axial direction of spring 300. Spring 300 is preferably a tower spring.

[0035] Figure 3 The arrows in the diagram indicate the direction of water flow. When coil 430 is not energized, the first magnet 410 and the second magnet 420 attract each other and achieve equilibrium under the damping action of the current-limiting balance spring 300. When the required water flow decreases, coil 430 is energized in the forward direction, bringing the two magnets closer together, compressing the balance spring 300, reducing the flow area, and achieving flow throttling. When the required water flow increases, coil 430 is energized in the reverse direction, releasing the stroke of the balance spring 300 and increasing the water flow. In this process, spring 300 acts as both a structural support and a part of the flow channel; the matching between the current in coil 430 and the water flow allows for precise control of the water flow.

[0036] like Figures 3-6 As shown, this embodiment further provides specific structural forms for the housing 100 and the valve core 200. Based on the arrangement of the above-mentioned liquid inlet 101, liquid outlet 102, water inlet 201 and water outlet 202, the spring 300 and the tension / pressure adjustment part 400 can also be reliably installed.

[0037] like Figures 3-6As shown, the valve core 200 includes an inner ring wall 210, an outer ring wall 220, and an end wall 230. The inner ring wall 210 and the outer ring wall 220 are spaced around the surface of the end wall 230. The inner ring wall 210 forms a hollow cavity 203, and a water inlet 201 is disposed on the inner ring wall 210. At a position directly opposite the space between the inner ring wall 210 and the outer ring wall 220, the end wall 230 is provided with a water outlet 202. The coil 430 is disposed on the outside of the outer ring wall 220. Figure 6 As shown, both the inner annular wall 210 and the outer annular wall 220 preferably adopt an annular structure and are coaxially arranged. The water inlet 201 penetrates the inner annular wall 210 and extends along the axial direction of the valve core 200, forming an elongated oval structure. The water outlet 202 penetrates the end wall 230 at a position opposite the space, forming a circular through hole. Furthermore, there are multiple water inlets 201 and multiple water outlets 202, with multiple water inlets 201 arranged around the inner annular wall 210 and multiple water outlets 202 arranged around the end wall 230.

[0038] like Figures 3-6 As shown, the inner surface of the end wall 230 is provided with a boss 231, and a first mounting groove is formed between the boss 231 and the inner ring wall 210. The second magnet 420 is installed in the first mounting groove. Specifically, the second magnet 420 is a ring magnet and is disposed in the annular first mounting groove.

[0039] like Figures 3-6 As shown, the outer ring wall 220 has multiple annular protrusions 221 on its outer side. An installation space is formed between two adjacent annular protrusions 221, and the coil 430 is installed within this space. Specifically, the outer ring wall 220 has four annular protrusions 221 on its outer side, with the installation space for the coil 430 formed between the two middle annular protrusions 221. The two annular protrusions 221 at both ends can abut against the steps 111 inside the end cap 120 and the housing body 110, respectively, thereby fixing the valve core 200 in its installation position within the housing 100.

[0040] like Figures 3-5 As shown, the housing 100 includes a housing body 110 and an end cap 120. One end of the inner side of the housing body 110 is provided with a step 111, and the end cap 120 is disposed at the other end of the housing body 110. The valve core 200 is installed between the step 111 and the end cap 120. The end cap 120 is provided with an extension wall 121 at its center. The extension wall 121 forms an inlet 101, and the step 111 forms an outlet 102. A second mounting groove is formed between the extension wall 121 and the valve core 200, and the first magnet 410 is installed in the second mounting groove.

[0041] This utility model embodiment also provides a gas water heater, which includes the water volume regulating device 1 as described above.

[0042] In this embodiment, the gas water heater can be controlled by a voice module (not shown in the figure), which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the gas water heater to perform corresponding operations, thereby realizing intelligent control of the gas water heater and improving the user experience.

[0043] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A water volume regulating device, characterized in that, The water volume regulating device includes a housing and a valve core, a spring, and a tension / compression adjusting part disposed within the housing. The housing has a liquid inlet and a liquid outlet, and the valve core has a water inlet and a water outlet. The valve core has a hollow cavity, the spring is disposed in the hollow cavity, and the axial opening of the spring is connected to the liquid inlet. The circumferential side of the spring is directly opposite the water inlet, and the water outlet is connected to the liquid outlet. After the water enters from the liquid inlet, it passes through the axial opening of the spring, the circumferential side of the spring, the water inlet and the water outlet in sequence, and flows out to the liquid outlet. The spring is stretched or compressed under the action of the tension / compression adjustment part to change the flow area of ​​the circumferential side of the spring.

2. The water volume regulating device as described in claim 1, characterized in that, The tension / compression adjustment unit includes a first magnet, a second magnet, and a control unit. The first magnet and the second magnet are respectively disposed at both ends of the axial direction of the spring, and the control unit is used to control the relative axial positions of the first magnet and the second magnet.

3. The water volume regulating device as described in claim 2, characterized in that, The control unit is a coil arranged circumferentially around at least a portion of the assembly formed by the first magnet, the spring, and the second magnet, and the coil is configured to change the axial relative position of the first magnet and the second magnet when energized.

4. The water volume regulating device as described in claim 3, characterized in that, The valve core includes an inner ring wall, an outer ring wall, and an end wall. The inner ring wall and the outer ring wall are spaced around the surface of the end wall. The inner ring wall forms the hollow cavity, and the water inlet is disposed on the inner ring wall. The end wall is provided with the water outlet at a position directly opposite to the space between the inner ring wall and the outer ring wall. The coil is disposed on the outside of the outer ring wall.

5. The water volume regulating device as described in claim 4, characterized in that, The outer ring wall has multiple annular protrusions on its outer side. An installation space is formed between two adjacent annular protrusions, and the coil is installed in the installation space.

6. The water volume regulating device as described in claim 4, characterized in that, There are multiple water inlets and multiple water outlets, with the multiple water inlets arranged around the inner ring wall and the multiple water outlets arranged around the end wall.

7. The water volume regulating device as described in claim 4, characterized in that, The inner surface of the end wall is provided with a boss, and a first mounting groove is formed between the boss and the inner ring wall, and the second magnet is installed in the first mounting groove.

8. The water volume regulating device as described in claim 4, characterized in that, The housing includes a housing body and an end cap. One end of the inner side of the housing body is provided with a step, and the end cap is disposed at the other end of the housing body. The valve core is installed between the step and the end cap. The end cap is provided with an extension wall at its center. The extension wall forms the liquid inlet, and the step forms the liquid outlet. A second mounting groove is formed between the extension wall and the valve core, and the first magnet is installed in the second mounting groove.

9. The water volume regulating device as described in claim 1, characterized in that, The spring is a tower spring.

10. A gas-fired water heater, characterized in that, The gas water heater includes a water volume regulating device as described in any one of claims 1-9.

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