One-way flow regulating valve and water heater

Abstract

The present invention provides a one-way flow-stabilizing valve and a water heater, belonging to the technical field of water heaters. The one-way flow-stabilizing valve of the present invention includes a valve body, the valve body having a valve cavity and a water inlet and a water outlet respectively connected to the two ends of the valve cavity, the one-way flow-stabilizing valve also includes a one-way valve core and a flow-stabilizing valve core arranged in the valve cavity, the flow-stabilizing valve core is connected to the end of the one-way valve core away from the water inlet; the flow-stabilizing valve core is provided with a first flow channel, the first flow channel extends along the axial direction of the flow-stabilizing valve core and passes through the two ends of the flow-stabilizing valve core, and the first flow channel is at least partially located radially outside the one-way valve core; the one-way flow-stabilizing valve has a working state and a non-working state; in the non-working state, the one-way valve core abuts against the valve seat of the valve body to block the water inlet; in the working state, the one-way valve core drives the flow-stabilizing valve core to move away from the water inlet under the action of water flow pressure to allow water to enter the valve cavity. The one-way valve core and the flow-stabilizing valve core are connected to realize an integrated design, and simultaneously realize one-way flow and stable flow of water.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a one-way flow stabilizing valve and a water heater. Background Art

[0002] In order to ensure a smooth, one-way flow of fluid, one-way valves, flow stabilization valves, or throttle valves are often installed in the water system. On the one hand, installing a one-way valve in the water heater can ensure that the water flows in the predetermined direction, avoiding problems such as the water heater starting up incorrectly due to reverse flow. On the other hand, installing a water flow stabilization device in the water system of a gas water heater can effectively alleviate the problem of hot water temperature fluctuation caused by water flow fluctuations, thus improving the user experience of using a gas water heater. Furthermore, 5.2.2.4.6 of GB6932-2015, "Household Gas Instantaneous Water Heaters," also has relevant requirements: the water system should be equipped with a flow stabilization or flow regulation device.

[0003] With the increasing number of high-rise buildings, water pressure in homes is becoming increasingly complex. Some residential water systems experience high and fluctuating water pressures, creating challenges for existing gas water heaters. Developing a flow stabilization device that can accommodate a wider range of water pressures is crucial to effectively address the significant temperature fluctuations in outlet water from gas water heaters in high-pressure areas. However, existing flow stabilization devices require separate flow stabilization valves and check valves, resulting in high costs and space requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art in which the flow stabilizing valve and the one-way valve of the flow stabilizing device are separately arranged, resulting in high cost and large space occupation, and to provide a one-way flow stabilizing valve and a water heater.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A one-way flow stabilizing valve comprises a valve body having a valve cavity and a water inlet and a water outlet respectively connected to two ends of the valve cavity; the one-way flow stabilizing valve further comprises a one-way valve core and a flow stabilizing valve core disposed in the valve cavity, the flow stabilizing valve core being connected to an end of the one-way valve core away from the water inlet;

[0007] The flow stabilizing valve core is provided with a first flow channel, the first flow channel extending along the axial direction of the flow stabilizing valve core and passing through both ends of the flow stabilizing valve core, and the first flow channel is at least partially located radially outside the one-way valve core;

[0008] The one-way flow stabilizing valve has a working state and a non-working state; in the non-working state, the one-way valve core abuts against the valve seat of the valve body to block the water inlet; in the working state, the one-way valve core drives the flow stabilizing valve core to move away from the water inlet under the action of water flow pressure to allow water to enter the valve cavity.

[0009] In this solution, the one-way valve core and the steady flow valve core of the one-way steady flow valve are connected to realize an integrated design, which is conducive to saving installation space inside the valve and reducing manufacturing costs; the first flow channel of the steady flow valve core is at least partially located radially outside the one-way valve core, so that when the one-way valve core and the steady flow valve core are connected together, the water flow can flow through the first flow channel without being blocked by the one-way valve core, thereby ensuring the normal flow stabilization function of the steady flow valve core; when the one-way steady flow valve is in a non-working state, the one-way valve core is sealed at the water inlet to prevent the water flow from entering the valve cavity; when the one-way steady flow valve is in a working state, under the action of water flow pressure, the one-way valve core moves in a direction away from the water inlet, and drives the steady flow valve core to move, so that the water flow can enter the valve cavity and flow through the first flow channel of the steady flow valve core, realizing one-way circulation of water through the one-way valve core and stable circulation of water through the steady flow valve core.

[0010] Preferably, the flow stabilizing valve core has a plurality of the first flow channels, and the plurality of the first flow channels are evenly distributed along the circumference of the flow stabilizing valve core.

[0011] In this solution, the plurality of first flow channels are evenly distributed along the circumference of the flow stabilizing valve core, so that the water flow can be dispersed more evenly, further enhancing the flow stabilizing effect of the flow stabilizing valve core.

[0012] Preferably, the flow stabilizing valve core is provided with one of a slide groove or a sliding portion extending along the axial direction of the one-way flow stabilizing valve, and the one-way valve core is provided with the other of the slide groove or the sliding portion, and the one-way valve core and the flow stabilizing valve core are slidably connected through the slide groove and the sliding portion passing through the slide groove.

[0013] In this solution, a sliding connection between the one-way valve core and the flow-stabilizing valve core is achieved through the coordinated setting of the slide groove and the sliding part, that is, a certain displacement is allowed between the two, thereby enhancing the flexibility of the movement of the one-way valve core and the flow-stabilizing valve core to adapt to the impact of water flow and further ensure the stability of the water flow in the one-way flow-stabilizing valve.

[0014] Preferably, the one-way valve core includes a one-way valve core body and a one-way valve stem, the one-way valve core body is connected to one end of the one-way valve stem facing the water inlet, the one-way valve stem is the sliding part, the flow stabilizing valve core is provided with the slide groove, and the one-way valve stem and the slide groove both extend along the central axis of the one-way flow stabilizing valve.

[0015] In this solution, the one-way valve core body is used to block the water inlet when the one-way flow stabilizing valve is in a non-working state; the one-way valve stem serves as a sliding part and cooperates with the slide groove of the flow stabilizing valve core, thereby realizing a sliding connection between the one-way valve core and the flow stabilizing valve core, while ensuring the stability of the connection between the two and generating relative displacement, thereby increasing the adaptability of the one-way valve core and the flow stabilizing valve core to water flow impact, which is beneficial to water flow stability; the one-way valve stem and the slide groove both extend along the central axis of the one-way flow stabilizing valve, that is, the connecting structure is located at the central axis position of the one-way flow stabilizing valve, so that the water flow pressure is evenly distributed around it, which is further beneficial to water flow stability.

[0016] Preferably, the one-way steady flow valve also includes an elastic first sealing member, and a first sealing groove extending circumferentially along the steady flow valve core is provided on the side of the one-way valve core opposite to the steady flow valve core. The first sealing member is arranged between the first sealing groove and the steady flow valve core, and partially covers the outlet of the first flow channel.

[0017] In this solution, the first seal is elastic. When the water pressure is too large, causing relative movement between the one-way valve core and the steady-flow valve core, the first seal between the two is squeezed and deformed, and the area of the first seal covering the outlet of the first flow channel gradually increases, and the water flow entering the first flow channel gradually decreases, thereby balancing the total water flow entering the valve cavity, ensuring that the total water flow remains stable when the water pressure continues to increase; at the same time, the first seal is located between the one-way valve core and the steady-flow valve core, which can prevent water from entering the connecting structure of the one-way valve core and the steady-flow valve core, and has good sealing performance.

[0018] Preferably, a second flow channel is formed between the flow stabilizing valve core and the valve body, the second flow channel is connected to the water inlet, the second flow channel extends along the radial direction of the one-way flow stabilizing valve, from outside to inside, and obliquely extends toward the water inlet, and the outlet water flow of the second flow channel and the first flow channel converge.

[0019] In this solution, part of the water flowing into the valve cavity through the water inlet flows into the first flow channel, and part flows into the second flow channel. Since the second flow channel is inclined as mentioned above, the water flowing from the near water inlet to the water outlet changes its direction when flowing through the second flow channel, which is beneficial to slowing down the impact of the water flow and increasing the flow stabilization effect. At the same time, the water flowing out through the first flow channel converges with the water flowing out through the second flow channel to form a counter-attack, thereby increasing the flow resistance and ensuring that the water flow remains stable when the water pressure increases.

[0020] Preferably, the one-way steady flow valve further comprises a throttle member sleeved on the inner peripheral wall of the valve body, and the throttle member comprises an annular abutting portion and an annular throttle portion;

[0021] The inner peripheral wall of the valve body is provided with a step surface, and the abutting portion abuts against the step surface;

[0022] The throttling portion is connected to one end of the abutting portion close to the water outlet, and the second flow channel is formed between the throttling portion and the flow stabilizing valve core.

[0023] In this solution, the throttling member is sleeved on the inner circumferential wall of the valve body through an annular abutment portion, and abuts against the step surface of the inner circumferential wall of the valve body through the abutment portion, thereby ensuring the stability of the connection of the throttling member; a second flow channel is formed between the throttling portion of the throttling member and the valve core, which changes the direction of the water flow, and the water flow out through the second flow channel and the water flow out through the first flow channel form a counter-action, which is beneficial to ensure the stability of the water flow when the water pressure increases.

[0024] Preferably, the throttling portion has a first inclined surface arranged along its circumference, and the flow stabilizing valve core has a second inclined surface arranged along its circumference, and the first inclined surface and the second inclined surface are arranged opposite to each other;

[0025] The first inclined surface and the second inclined surface both extend along the radial direction of the one-way flow stabilizing valve from outside to inside, and obliquely extend toward the water inlet, thereby forming the first flow channel together.

[0026] In this solution, the first inclined surface and the second inclined surface are both arranged along the circumferential direction, and a second annular flow channel is formed between the two, so that the water flows more evenly from the water inlet into the second flow channel, dispersing the water flow pressure; the inclination direction of the first inclined surface and the second inclined surface causes the water flow entering the second flow channel to change its flow direction, increase the flow resistance, and ensure that the water flow rate remains stable when the water pressure increases.

[0027] Preferably, the valve body further comprises a limiting portion, and the limiting portion is located at one end of the valve cavity close to the water outlet;

[0028] The one-way steady flow valve further comprises an elastic member, both ends of which are respectively in contact with the steady flow valve core and the limiting portion, and the elastic member is used to provide a force for the steady flow valve core to move toward the water inlet.

[0029] In this solution, the two ends of the elastic member of the one-way flow stabilizing valve are respectively in contact with the flow stabilizing valve core and the limiting part, providing the flow stabilizing valve core with a force to move toward the water inlet, so that in the non-working state, under the action of the elastic member, the one-way valve core is abutted against the valve seat of the valve body through the flow stabilizing valve core to block the water inlet; in the working state, under the action of the water flow pressure, the one-way valve core and the flow stabilizing valve core begin to move away from the water inlet and further squeeze the elastic member. In this process, the distance between the flow stabilizing valve core and the throttling member begins to decrease, that is, the cross-sectional area of the second flow channel begins to decrease, so that when the water pressure continues to increase, the total water flow rate flowing through the first flow channel and the second flow channel remains stable.

[0030] Preferably, the limiting portion is provided with a through hole extending along the axial direction of the one-way steady flow valve, and the steady flow valve core is provided with a guide portion extending along the axial direction of the one-way steady flow valve, and the guide portion is passed through the through hole.

[0031] In this solution, the provision of the guide portion and the through hole ensures that the flow stabilizing valve core does not deviate during the axial movement, which is conducive to the stable flow of water through the one-way flow stabilizing valve.

[0032] Preferably, the flow stabilizing valve core is provided with an annular protrusion on one side facing the limiting portion, the abutting end of the elastic member is sleeved on the inner circumference of the protrusion, and the elastic member is sleeved on the outer circumference of the guide portion.

[0033] In this solution, the annular protrusion is arranged on the outer peripheral side of the abutting end of the elastic member, and the guide portion is passed through the inner peripheral side of the elastic member. The above arrangement prevents the elastic member from being offset during the compression process, thereby ensuring the stability of the movement of the steady flow valve core and the one-way valve core.

[0034] Preferably, the limiting portion is provided with a plurality of water flow channels extending along the axial direction of the one-way flow stabilizing valve, the plurality of water flow channels are all connected to the water outlet, and are evenly distributed along the circumference of the limiting portion.

[0035] In this solution, multiple water flow channels evenly distribute the water flow from the valve cavity to avoid excessive concentration of water flow at the water outlet and excessive water pressure, thereby further increasing water flow stability.

[0036] Preferably, the one-way steady flow valve further includes a second sealing member, the outer peripheral wall of the valve body is provided with a second sealing groove extending along the circumference of the valve body, and the second sealing member is sleeved in the second sealing groove.

[0037] In this solution, the second sealing member is used to achieve a sealed connection between the one-way flow stabilizing valve and the water system at the installation position when the one-way flow stabilizing valve is installed in the water system, thereby preventing water from flowing out.

[0038] A water heater comprises the one-way flow stabilizing valve mentioned above.

[0039] In this solution, the water heater is provided with the above-mentioned one-way flow stabilizing valve, which realizes the integrated design of the one-way valve core and the flow stabilizing valve core of the one-way flow stabilizing valve, which is conducive to saving installation space inside the valve and reducing manufacturing costs. While realizing one-way circulation of water through the one-way valve core, stable circulation of water is realized through the flow stabilizing valve core. It is suitable for different water pressures and has a larger flow stabilization range.

[0040] The positive progress effect of the present invention is:

[0041] In the present invention, the one-way flow stabilizing valve core and the flow stabilizing valve core are connected to realize an integrated design, which is conducive to saving installation space inside the valve and reducing manufacturing costs; the first flow channel of the flow stabilizing valve core is at least partially located radially outside the one-way valve core, so that when the one-way valve core and the flow stabilizing valve core are connected together, the water flow can flow through the first flow channel without being blocked by the one-way valve core, thereby ensuring the normal flow stabilizing function of the flow stabilizing valve core; when the one-way flow stabilizing valve is in a non-working state, the one-way valve core is sealed at the water inlet to prevent the water flow from entering the valve cavity; when the one-way flow stabilizing valve is in a working state, under the action of water flow pressure, the one-way valve core moves in a direction away from the water inlet, and drives the flow stabilizing valve core to move, so that the water flow can enter the valve cavity and flow through the first flow channel of the flow stabilizing valve core, realizing one-way circulation of water through the one-way valve core and realizing stable circulation of water through the flow stabilizing valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Schematic diagram of the three-dimensional structure of a one-way flow stabilizing valve according to an embodiment of the present invention.

[0043] Figure 2 Schematic diagram of the three-dimensional structure of a one-way flow stabilizing valve from another perspective according to an embodiment of the present invention.

[0044] Figure 3 Schematic diagram of the explosion structure of a one-way flow stabilizing valve according to an embodiment of the present invention.

[0045] Figure 4 Schematic diagram of the cross-sectional structure of a one-way flow stabilizing valve in a non-working state according to an embodiment of the present invention.

[0046] Figure 5 Schematic diagram of the cross-sectional structure of a one-way flow stabilizing valve in a working state according to an embodiment of the present invention.

[0047] Figure 6 This is a cross-sectional structural diagram of a one-way flow regulating valve according to an embodiment of the present invention in another working state (water pressure is higher than Figure 5 water pressure in the tank).

[0048] Figure 7 This is a steady flow curve diagram of a first-stage steady flow structure of a one-way steady flow valve according to an embodiment of the present invention.

[0049] Figure 8 FIG. 1 is a flow stabilization curve diagram of a two-stage flow stabilization structure of a one-way flow stabilization valve according to an embodiment of the present invention.

[0050] Figure 9 This is a steady flow curve diagram of the three-stage steady flow structure of the one-way steady flow valve according to an embodiment of the present invention.

[0051] Figure 10 FIG. 1 is a steady flow curve diagram of a one-way steady flow valve according to an embodiment of the present invention.

[0052] Description of reference numerals:

[0053] Valve body 1

[0054] Valve chamber 11

[0055] Water inlet 12

[0056] Water outlet 13

[0057] Valve seat 14

[0058] Step surface 15

[0059] Limiting portion 16

[0060] Through hole 161

[0061] Water channel 162

[0062] Second sealing groove 17

[0063] One-way valve core 2

[0064] One-way valve stem 21

[0065] Expanded end 211

[0066] One-way valve core body 22

[0067] First sealing groove 23

[0068] Steady flow valve core 3

[0069] First flow channel 31

[0070] Second flow channel 32

[0071] Chute 33

[0072] Second inclined surface 34

[0073] Guide portion 35

[0074] protrusion 36

[0075] First seal 4

[0076] Throttle 5

[0077] Contact part 51

[0078] Throttle 52

[0079] First inclined surface 521

[0080] Elastic member 6

[0081] Second sealing member 7 DETAILED DESCRIPTION

[0082] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0083] like Figures 1 to 6 As shown, this embodiment provides a one-way steady flow valve, including a valve body 1, the valve body 1 has a valve cavity 11 and a water inlet 12 and a water outlet 13 respectively connected to the two ends of the valve cavity 11, the one-way steady flow valve also includes a one-way valve core 2 and a steady flow valve core 3 arranged in the valve cavity 11, the steady flow valve core 3 is connected to the end of the one-way valve core 2 away from the water inlet 12; the steady flow valve core 3 is provided with a first flow channel 31, the first flow channel 31 extends along the axial direction of the steady flow valve core 3 and passes through the two ends of the steady flow valve core 3, and the first flow channel 31 is at least partially located radially outside the one-way valve core 2; the one-way steady flow valve has a working state and a non-working state; in the non-working state, the one-way valve core 2 abuts against the valve seat 14 of the valve body 1 to block the water inlet 12; in the working state, the one-way valve core 2 drives the steady flow valve core 3 to move away from the water inlet 12 under the action of water flow pressure to allow water to flow into the valve cavity 11. The one-way flow stabilizing valve core 2 and the flow stabilizing valve core 3 are connected to realize an integrated design, which is conducive to saving installation space inside the valve and reducing manufacturing costs; the first flow channel 31 of the flow stabilizing valve core 3 is at least partially located radially outside the one-way valve core 2, so that when the one-way valve core 2 and the flow stabilizing valve core 3 are connected together, the water flow can flow through the first flow channel 31 without being blocked by the one-way valve core 2, thereby ensuring the normal flow stabilizing function of the flow stabilizing valve core 3; when the one-way flow stabilizing valve is in a non-working state, the one-way valve core 2 is blocked at the water inlet 12, preventing the water flow from entering the valve cavity 11; when the one-way flow stabilizing valve is in a working state, under the action of water flow pressure, the one-way valve core 2 moves in a direction away from the water inlet 12, and drives the flow stabilizing valve core 3 to move, so that the water flow can enter the valve cavity 11 and flow through the first flow channel 31 of the flow stabilizing valve core 3, realizing one-way circulation of the water flow through the one-way valve core 2 and stable circulation of the water flow through the flow stabilizing valve core 3.

[0084] In this embodiment, the flow stabilizing valve core 3 has multiple first flow channels 31, and the multiple first flow channels 31 are evenly distributed along the circumference of the flow stabilizing valve core 3, so that the water flow can be dispersed more evenly, further enhancing the flow stabilizing effect of the flow stabilizing valve core 3.

[0085] In this embodiment, the flow-stabilizing valve core 3 is provided with a slide groove 33 extending along the axial direction of the one-way flow-stabilizing valve, and the one-way valve core 2 is provided with a sliding portion. The one-way valve core 2 and the flow-stabilizing valve core 3 are slidably connected by the slide groove 33 and the sliding portion passing through the slide groove 33. The sliding connection between the one-way valve core 2 and the flow-stabilizing valve core 3 is achieved by the coordinated arrangement of the slide groove 33 and the sliding portion, that is, a certain displacement is allowed between the two, thereby enhancing the flexibility of the movement of the one-way valve core 2 and the flow-stabilizing valve core 3 to adapt to the impact of water flow and further ensure the stability of the water flow in the one-way flow-stabilizing valve. In other optional embodiments, the slide groove 33 can also be provided in the one-way valve core 2, and the sliding portion that cooperates with the slide groove 33 can be provided in the flow-stabilizing valve core 3 to achieve the sliding connection between the one-way valve core 2 and the flow-stabilizing valve core 3.

[0086] In this embodiment, the one-way valve core 2 includes a one-way valve core body 22 and a one-way valve stem 21. The one-way valve core body 22 is connected to the end of the one-way valve stem 21 facing the water inlet 12. The one-way valve stem 21 serves as a sliding portion. Both the one-way valve stem 21 and the slide groove 33 extend along the central axis of the one-way flow regulating valve. The one-way valve core body 22 is used to block the water inlet 12 when the one-way flow regulating valve is in the non-operating state. The one-way valve stem 21, as a sliding portion, cooperates with the slide groove 33 of the flow regulating valve core 3 to achieve a sliding connection between the one-way valve core 2 and the flow regulating valve core 3. While ensuring a stable connection between the two, relative displacement can be generated, increasing the adaptability of the one-way valve core 2 and the flow regulating valve core 3 to water flow impact, thereby facilitating water flow stability. The one-way valve stem 21 and the slide groove 33 both extend along the central axis of the one-way flow regulating valve, i.e., the connection structure is located at the central axis of the one-way flow regulating valve, which ensures that the water flow pressure is evenly distributed around it, further facilitating water flow stability. Specifically, in this embodiment, the diameter of the end of the slide groove 33 located inside the flow-stabilizing valve core 3 is enlarged, and correspondingly, the end of the one-way valve stem 21 located inside the slide groove 33 is provided with an enlarged end 211, and the enlarged end 211 cooperates with the end of the slide groove 33 to prevent the one-way valve stem 21 from slipping out of the slide groove 33 during the relative movement with the flow-stabilizing valve core 3, thereby ensuring the stability of the sliding connection between the two.

[0087] In this embodiment, the one-way steady flow valve also includes a resilient first sealing member 4. A first sealing groove 23 extending circumferentially along the steady flow valve member 3 is provided on the side of the one-way valve core 2 opposite the steady flow valve core 3. The first sealing member 4 is positioned between the first sealing groove 23 and the steady flow valve core 3 and partially covers the outlet of the first flow channel 31. The first sealing member 4 is resilient. When excessive water pressure causes relative movement between the one-way valve core 2 and the steady flow valve core 3, the first sealing member 4 between them is squeezed and deformed. The area of the outlet of the first flow channel 31 covered by the first sealing member 4 gradually increases, gradually reducing the water flow entering the first flow channel 31. This balances the total water flow entering the valve chamber 11, ensuring that the total water flow remains stable despite increasing water pressure. Furthermore, when the one-way steady flow valve is in the non-operating state, the first sealing member 4 is located between the one-way valve core 2, the steady flow valve core 3, and the valve body 1, preventing water from entering the valve chamber 11 and providing good sealing performance. Specifically, in this embodiment, the first sealing member 4 is a sealing ring.

[0088] In this embodiment, a second flow channel 32 is formed between the flow stabilizing valve core 3 and the valve body 1. The second flow channel 32 is connected to the water inlet 12. The second flow channel 32 extends along the radial direction of the one-way flow stabilizing valve from the outside to the inside, obliquely extending in the direction of the water inlet 12. The outlet water flows of the second flow channel 32 and the first flow channel 31 converge. The water flowing into the valve chamber 11 through the water inlet 12 partially flows into the first flow channel 31, and partially flows into the second flow channel 32. Due to the above-mentioned inclined setting of the second flow channel 32, the water flowing from the near water inlet to the water outlet 13 changes its flow direction when flowing through the second flow channel 32, which is conducive to slowing down the impact of the water flow and increasing the flow stabilization effect. At the same time, the water flowing out of the first flow channel 31 and the water flowing out of the second flow channel 32 converge to form a counter-flow, increase the flow resistance, and ensure that the water flow remains stable when the water pressure increases.

[0089] In this embodiment, the one-way steady flow valve further includes a throttle member 5 sleeved on the inner circumferential wall of the valve body 1. The throttle member 5 includes an annular abutting portion 51 and an annular throttle portion 52. The inner circumferential wall of the valve body 1 is provided with a stepped surface 15, and the abutting portion 51 abuts against the stepped surface 15. The throttle portion 52 is connected to the end of the abutting portion 51 near the water outlet 13, and a second flow channel 32 is formed between the throttle member 52 and the steady flow valve core 3. The throttle member 5 is sleeved on the inner circumferential wall of the valve body 1 via the annular abutting portion 51, and abuts against the stepped surface 15 of the inner circumferential wall of the valve body 1 via the abutting portion 51, ensuring the stability of the connection of the throttle member 5. The second flow channel 32 is formed between the throttle portion 52 of the throttle member 5 and the valve core, changing the direction of water flow. The water flowing out of the second flow channel 32 counteracts the water flowing out of the first flow channel 31, which helps to ensure the stability of water flow under increased water pressure.

[0090] In this embodiment, the throttle portion 52 has a first inclined surface 521 disposed along its circumference, and the flow-stabilizing valve core 3 has a second inclined surface 34 disposed along its circumference. The first inclined surface 521 and the second inclined surface 34 are disposed opposite each other. Both the first inclined surface 521 and the second inclined surface 34 extend along the radial direction of the one-way flow-stabilizing valve from the outside to the inside, obliquely extending toward the water inlet 12, and together form the first flow channel 31. The first inclined surface 521 and the second inclined surface 34 are both disposed along the circumference, forming an annular second flow channel 32 therebetween. This allows water to flow more evenly from the water inlet 12 into the second flow channel 32, dispersing the water pressure. The inclination of the first inclined surface 521 and the second inclined surface 34 causes the water entering the second flow channel 32 to change its direction, increasing the flow resistance and ensuring a stable water flow rate even when the water pressure increases.

[0091] In this embodiment, the valve body 1 also includes a limiting portion 16, which is located at one end of the valve cavity 11 close to the water outlet 13; the one-way steady flow valve also includes an elastic member 6, the two ends of the elastic member 6 respectively abut against the steady flow valve core 3 and the limiting portion 16, and the elastic member 6 is used to provide a force to the steady flow valve core 3 to move toward the water inlet 12. The two ends of the elastic member 6 of the one-way steady flow valve are respectively in contact with the steady flow valve core 3 and the limit part 16, providing the steady flow valve core 3 with a force to move toward the water inlet 12, so that in the non-working state, under the action of the elastic member 6, the one-way valve core 2 is abutted against the valve seat 14 of the valve body 1 through the steady flow valve core 3 to block the water inlet 12; in the working state, under the action of the water flow pressure, the one-way valve core 2 and the steady flow valve core 3 begin to move away from the water inlet 12 and further squeeze the elastic member 6. In this process, the distance between the steady flow valve core 3 and the throttling member 5 begins to decrease, that is, the cross-sectional area of the second flow channel 32 begins to decrease, so that when the water pressure continues to increase, the total water flow rate flowing through the first flow channel 31 and the second flow channel 32 remains stable.

[0092] In this embodiment, the position-limiting portion 16 is provided with a through hole 161 extending axially along the one-way flow stabilizing valve, and the flow stabilizing valve core 3 is provided with a guide portion 35 extending axially along the one-way flow stabilizing valve. The guide portion 35 is disposed through the through hole 161. The provision of the guide portion 35 and the through hole 161 ensures that the flow stabilizing valve core 3 does not deviate during axial movement, thereby facilitating stable water flow through the one-way flow stabilizing valve.

[0093] In this embodiment, an annular protrusion 36 is provided on the side of the flow-stabilizing valve core 3 facing the limiting portion 16. The abutting end of the elastic member 6 is sleeved on the inner circumference of the protrusion 36, and the elastic member 6 is sleeved on the outer circumference of the guide portion 35. The annular protrusion 36 is arranged around the outer circumference of the abutting end of the elastic member 6, while the guide portion 35 is arranged through the inner circumference of the elastic member 6. This arrangement prevents the elastic member 6 from deflecting during compression, thereby ensuring the stability of the movement of the flow-stabilizing valve core 3 and the one-way valve core 2.

[0094] In this embodiment, the limiting portion 16 is provided with a plurality of water flow channels 162 extending axially along the one-way flow stabilizing valve. These channels 162 are all connected to the water outlet 13 and are evenly distributed along the circumference of the limiting portion 16. These channels 162 evenly distribute the water flow from the valve chamber 11, preventing excessive concentration of water at the water outlet 13 and excessive water pressure, thereby further enhancing water flow stability.

[0095] In this embodiment, the one-way flow stabilizing valve further includes a second sealing member 7. The outer peripheral wall of the valve body 1 is provided with a second sealing groove 17 extending circumferentially along the valve body 1. The second sealing member 7 is sleeved within the second sealing groove 17. The second sealing member 7 is used to provide a sealed connection between the one-way flow stabilizing valve and the water system when the one-way flow stabilizing valve is installed in the water system, preventing water from leaking out. Specifically, in this embodiment, the second sealing member 7 is a sealing ring.

[0096] From the perspective of flow stabilization, the one-way flow stabilization valve of this embodiment has a primary flow stabilization structure, a secondary flow stabilization structure, and a tertiary flow stabilization structure. The specific working principle of the one-way flow stabilization valve of this embodiment is described in detail below:

[0097] In the initial stage of the working state, only the first-level flow stabilizing structure of the one-way flow stabilizing valve plays a role. The first-level flow stabilizing structure mainly includes the one-way valve core 2, the flow stabilizing valve core 3, the elastic member 6 and the second flow channel 32. Specifically, when water flows through, under the action of the flowing water pressure, the one-way valve core 2 drives the flow stabilizing valve core 3 to move away from the water inlet 12, the elastic member 6 is compressed, and the water flows into the valve cavity 11. In this process, as the water pressure continues to increase, the cross-sectional area of the second flow channel 32 continues to shrink to ensure that the total water flow rate remains stable. When only the first-level structure in the one-way flow stabilizing valve plays a role, its flow stabilizing curve is as follows Figure 7 As shown;

[0098] As the water flow pressure continues to increase, the water flow pressure exceeds the maximum flow stabilization capacity of the primary flow stabilization structure. At this time, the secondary flow stabilization structure begins to work. The secondary flow stabilization structure mainly includes a one-way valve core 2, a flow stabilization valve core 3, an elastic member 6, a first flow channel 31 and a second flow channel 32. Specifically, Figure 6 As shown, when the water pressure increases further, the first flow channel 31 and the second flow channel 32 form a Tesla throttle valve structure. The water flow in the second flow channel 32 is redirected by the throttle ring return structure and then counteracts the water flow in the first flow channel 31, increasing the flow resistance and ensuring that the water flow rate remains stable when the water pressure increases. When only the secondary structure in the one-way steady flow valve works, its steady flow curve is as shown in FIG. Figure 8 As shown;

[0099] As the water flow pressure increases further, the water flow pressure exceeds the maximum flow stabilizing capacity of the secondary flow stabilizing structure. At this time, the three-stage flow stabilizing structure begins to work. The three-stage flow stabilizing structure mainly includes a one-way valve core 2, a flow stabilizing valve core 3, an elastic member 6, a first flow channel 31, a second flow channel 32 and a first sealing member 4. Specifically, the one-way valve core 2 begins to move relative to the flow stabilizing valve core 3 under the action of the water flow pressure, and squeezes the first sealing member 4 between the one-way valve core 2 and the flow stabilizing valve core 3. The elastic first sealing member 4 is deformed under pressure, and the covering area of the first flow channel 31 gradually increases, so that the water flow flowing through the first flow channel 31 is reduced, thereby ensuring that the total water flow remains stable when the total water flow pressure increases. When only the three-stage structure in the one-way flow stabilizing valve works, its flow stabilizing curve is as follows: Figure 9 As shown;

[0100] Since the one-way flow stabilizing valve of this embodiment has the above-mentioned three-stage flow stabilizing structure, the above-mentioned three-stage flow stabilizing structure works step by step as the water pressure increases, and its flow stabilizing curve is as follows: Figure 10 As shown, it can be found that the one-way flow stabilizing valve has a good flow stabilizing effect and can adapt to higher water pressure.

[0101] In addition, this embodiment also provides a water heater including the aforementioned one-way flow stabilizing valve. The water heater is provided with the aforementioned one-way flow stabilizing valve, which realizes an integrated design of the one-way valve core 2 and the flow stabilizing valve core 3 of the one-way flow stabilizing valve. This helps save installation space within the valve and reduces manufacturing costs. While the one-way valve core 2 enables one-way flow of water, the flow stabilizing valve core 3 also achieves stable flow of water. The water heater is adaptable to different water pressures and has a wide range of stable flow.

[0102] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A one-way flow regulating valve, comprising a valve body, the valve body having a valve cavity and a water inlet and a water outlet respectively connected to the two ends of the valve cavity, characterized in that: The one-way steady flow valve further comprises a one-way valve core and a steady flow valve core arranged in the valve cavity, wherein the steady flow valve core is connected to an end of the one-way valve core away from the water inlet; The flow stabilizing valve core is provided with a first flow channel, the first flow channel extending along the axial direction of the flow stabilizing valve core and passing through both ends of the flow stabilizing valve core, and the first flow channel is at least partially located radially outside the one-way valve core; The one-way flow stabilizing valve has an operating state and a non-operating state. In the non-operating state, the one-way valve core abuts against the valve seat of the valve body to block the water inlet. In the operating state, the one-way valve core drives the flow stabilizing valve core to move away from the water inlet under the action of water flow pressure to allow water to enter the valve cavity. The valve body further includes a limiting portion, which is located at one end of the valve cavity close to the water outlet; The one-way steady flow valve further includes an elastic member, both ends of which are respectively in contact with the steady flow valve core and the limiting portion, and the elastic member is used to provide a force for the steady flow valve core to move toward the water inlet.

2. The one-way steady flow valve according to claim 1, characterized in that: The flow stabilizing valve core has a plurality of first flow channels, and the plurality of first flow channels are evenly distributed along the circumference of the flow stabilizing valve core.

3. The one-way steady flow valve according to claim 1, characterized in that: The flow stabilizing valve core is provided with one of a slide groove or a sliding part extending along the axial direction of the one-way flow stabilizing valve, and the one-way valve core is provided with the other of the slide groove or the sliding part. The one-way valve core and the flow stabilizing valve core are slidably connected through the slide groove and the sliding part passing through the slide groove.

4. The one-way steady flow valve according to claim 3, characterized in that: The one-way valve core includes a one-way valve core body and a one-way valve stem. The one-way valve core body is connected to one end of the one-way valve stem facing the water inlet. The one-way valve stem is the sliding part. The flow stabilizing valve core is provided with the slide groove. The one-way valve stem and the slide groove both extend along the central axis of the one-way flow stabilizing valve.

5. The one-way steady flow valve according to claim 3, characterized in that: The one-way steady flow valve also includes an elastic first sealing member, and a first sealing groove extending along the circumference of the steady flow valve core is provided on the side of the one-way valve core opposite to the steady flow valve core. The first sealing member is arranged between the first sealing groove and the steady flow valve core, and partially covers the outlet of the first flow channel.

6. The one-way steady flow valve according to claim 1, characterized in that: A second flow channel is formed between the flow stabilizing valve core and the valve body. The second flow channel is connected to the water inlet. The second flow channel extends along the radial direction of the one-way flow stabilizing valve from outside to inside, obliquely toward the water inlet. The outlet water flow of the second flow channel and the first flow channel converge.

7. The one-way steady flow valve according to claim 6, characterized in that: The one-way steady flow valve further comprises a throttle member sleeved on the inner peripheral wall of the valve body, wherein the throttle member comprises an annular abutting portion and an annular throttle portion; The inner peripheral wall of the valve body is provided with a step surface, and the abutting portion abuts against the step surface; The throttling portion is connected to one end of the abutting portion close to the water outlet, and the second flow channel is formed between the throttling portion and the flow stabilizing valve core.

8. The one-way steady flow valve according to claim 7, characterized in that: The throttle portion has a first inclined surface arranged along its circumference, and the flow stabilizing valve core has a second inclined surface arranged along its circumference, and the first inclined surface and the second inclined surface are arranged opposite to each other; The first inclined surface and the second inclined surface both extend along the radial direction of the one-way flow stabilizing valve from outside to inside, and obliquely extend toward the water inlet, thereby forming the first flow channel together.

9. The one-way steady flow valve according to claim 1, characterized in that: The limiting portion is provided with a through hole extending along the axial direction of the one-way steady flow valve, and the steady flow valve core is provided with a guide portion extending along the axial direction of the one-way steady flow valve, and the guide portion is penetrated by the through hole.

10. The one-way steady flow valve according to claim 9, characterized in that: The flow stabilizing valve core is provided with an annular protrusion on one side facing the limiting portion, the abutting end of the elastic member is sleeved on the inner peripheral side of the protrusion, and the elastic member is sleeved on the outer peripheral side of the guide portion.

11. The one-way steady flow valve according to claim 1, characterized in that: The limiting portion is provided with a plurality of water flow channels extending along the axial direction of the one-way flow stabilizing valve. The plurality of water flow channels are all connected to the water outlet and are evenly distributed along the circumference of the limiting portion.

12. The one-way steady flow valve according to claim 1, wherein: The one-way steady flow valve further includes a second sealing member. The outer peripheral wall of the valve body is provided with a second sealing groove extending along the circumference of the valve body. The second sealing member is sleeved in the second sealing groove.

13. A water heater, characterized in that: The water heater comprises a one-way flow stabilizing valve as described in any one of claims 1-12.

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