Water heater anti-water hammer impact valve core and water channel connection structure

Abstract

The present invention relates to a water heater anti-water hammer impact valve core and water path connection structure, comprising a base, a diaphragm arranged above the base, a cavity arranged above the diaphragm, an opening and closing component arranged above the cavity, and a shell arranged outside the opening and closing component. A base water outlet hole is provided on one side of the base, the diaphragm is connected to an elastic part, and the diaphragm is sealed at the base water outlet hole under the action of the elastic part. A control water path outlet hole is provided on the upper surface of the cavity, and a shell outlet hole is provided on the side wall of the shell. The present invention can automatically open or close the cold water inlet of the water heater according to the opening or closing of hot water water use, so that the water hammer is borne by the water hammer impact valve core, thereby preventing the water heater from being damaged by the impact, while retaining the function of manual closing by the user, thereby facilitating the user to maintain the water equipment. In addition, since the water heater anti-water hammer impact valve core is closed when hot water is not in use, the changing water pressure is also borne by the water hammer impact valve core, thereby effectively extending the service life of the water heater.

Description

Technical Field

[0001] The present invention relates to the technical field of valve cores, and in particular to a water heater water hammer impact-proof valve core and a waterway connection structure. Background Art

[0002] When the hot water is turned off during use, the sudden suspension of water flow often causes a water hammer effect, impacting the water heater's inner tank and potentially damaging it. Existing angle valves can only be opened and closed manually, and users generally don't manually close the water inlet angle valve frequently, causing water hammer to impact the water heater's inner tank. Furthermore, due to the numerous water terminals in a home, the water pressure in the home is constantly fluctuating, and this pressure is generally borne by the water heater. Over time, this pressure can affect the water heater's service life, thus requiring continuous improvement based on market demand and customer feedback. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a water heater valve core and a waterway connection structure that is resistant to water hammer impact.

[0004] The present invention is achieved through the following technical solutions:

[0005] A water heater anti-water hammer impact valve core is characterized by comprising a base, a diaphragm arranged above the base, a cavity arranged above the diaphragm, an opening and closing component arranged above the cavity, and an outer shell arranged outside the opening and closing component. A base water outlet hole is provided on one side of the base, the diaphragm is connected to an elastic part, and the diaphragm is sealed at the base water outlet hole under the action of the elastic part, a control water channel outlet hole is provided on the upper surface of the cavity, and an outer shell water outlet hole is provided on the side wall of the outer shell.

[0006] According to the above technical solution, preferably, both ends of the elastic member are fixedly connected to the diaphragm and the cavity respectively.

[0007] According to the above technical solution, preferably, the elastic member is a spring.

[0008] According to the above technical solution, preferably, a control rod connected to the opening and closing assembly is provided above the shell.

[0009] According to the above technical solution, preferably, the opening and closing assembly includes a static ceramic plate fixedly connected to the top of the cavity and a dynamic ceramic plate rotatably connected to the upper surface of the static ceramic plate. The surface of the static ceramic plate is provided with a water hole connected to the water outlet hole of the control water channel, and the dynamic ceramic plate is provided with a water groove, and the dynamic ceramic plate is connected to the control rod.

[0010] According to the above technical solution, preferably, the shell and the base are detachably connected.

[0011] This patent also discloses a water connection structure for a water heater that is protected from water hammer impact, including a water heater and a hot water outlet angle valve connected to the water heater. The characteristic is that it also includes a water hammer impact angle valve connected to the water heater, the water hammer impact angle valve includes the water heater water hammer impact valve core, the hot water outlet angle valve is connected to the water hammer impact angle valve, and the hot water outlet angle valve is connected to a hot water terminal.

[0012] According to the above technical solution, preferably, the hot water outlet angle valve includes a hot water inlet end connected to the water heater, a hot water outlet end connected to the hot water terminal, and a control water channel inlet end connected to the anti-water hammer impact angle valve; the anti-water hammer impact angle valve includes a main water channel inlet end, a cold water inlet end connected to the water heater, and a control water channel outlet end connected to the hot water outlet angle valve; the outer shell water outlet hole is connected to the control water channel outlet end.

[0013] According to the above technical solution, preferably, when the diaphragm is separated from the water outlet hole of the base, the water outlet hole of the base is connected to the cold water inlet end.

[0014] According to the above technical solution, preferably, the hot water inlet and the control water outlet are respectively provided with a one-way valve.

[0015] The beneficial effects of the present invention are:

[0016] The present invention designs a water heater anti-water hammer impact valve core and water channel connection structure, which can automatically open or close the cold water inlet of the water heater according to the opening or closing of hot water water use, so that the water hammer is borne by the water hammer impact valve core, preventing the water heater from being damaged by the impact, while retaining the function of manual closing by the user, making it convenient for the user to maintain the water equipment and conducive to obtaining a better user experience. In addition, since the water heater anti-water hammer impact valve core is closed when hot water is not in use, the changing water pressure is also borne by the water hammer impact valve core, effectively extending the service life of the water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an exploded view of the three-dimensional structure of the water heater's anti-water hammer impact valve core.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the cavity part of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the control rod part of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the dynamic ceramic plate part of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the diaphragm part of the present invention.

[0022] Figure 6 It is a schematic diagram of the main structure of the base part of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the shell part of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the bottom of the shell of the present invention.

[0025] Figure 9 It is a schematic diagram of the three-dimensional structure of the static ceramic plate part of the present invention.

[0026] Figure 10 This is a cross-sectional view of the main structure of the water heater's anti-water hammer impact valve core.

[0027] Figure 11 It is a schematic diagram of the principle of preventing the water heater from being hit by water hammer when the control water circuit is disconnected.

[0028] Figure 12 It is a schematic diagram of the principle of protecting the water heater from water hammer impact on the valve core when the control water path is connected.

[0029] Figure 13 3. This is a schematic diagram of water connection when the water connection structure of the water heater against water hammer impact is implemented in Embodiment 1.

[0030] Figure 14 3. This is a schematic diagram of water connection when the water connection structure of the water heater against water hammer impact is implemented in embodiment 2.

[0031] Figure 15 3 is a schematic diagram of water connection structure for protecting a water heater from water hammer impact in accordance with Embodiment 3.

[0032] In the figure: 1. Shell; 2. Control rod; 3. Moving ceramic disc; 4. Static ceramic disc; 5. Sealing gasket; 6. Cavity; 7. Spring; 8. Diaphragm; 9. Base; 10. Positioning boss; 11. Control water outlet hole; 12. Limiting boss; 13. Control boss; 14. Control groove; 15. Water channel; 16. Damping hole; 17. Base outlet hole; 18. Shell outlet hole; 19. Limiting groove; 20. Positioning groove; 21. Water channel; 22. Main water channel; 23. Control water channel; 24. Hot water inlet; 25. Hot water outlet; 26. Control water channel inlet; 27. Control water channel outlet; 28. Main water channel inlet; 29. Cold water inlet; 30. One-way valve. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and the best embodiment. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the invention.

[0034] In the description of the invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the invention.

[0035] As shown in the figure, the present invention comprises a base 9, a diaphragm 8 disposed above the base, a cavity 6 disposed above the diaphragm 8, an opening and closing assembly disposed above the cavity 6, and a housing 1 disposed outside the opening and closing assembly. The base is provided with a base outlet 17 on one side, the diaphragm 8 is connected to an elastic member, and the diaphragm 8 is sealed at the base outlet 17 by the elastic member. The cavity 6 is provided with a control waterway outlet 11 on the upper surface, and the housing sidewall is provided with a housing outlet 18. The housing and the base are detachably connected. The present invention designs a water heater anti-water hammer impact valve core and waterway connection structure, which can automatically open or close the cold water inlet of the water heater according to the opening or closing of hot water water. The water hammer is borne by the anti-water hammer impact valve core, preventing the water heater from being damaged by the impact. At the same time, the user can manually close the valve core, which facilitates user maintenance of the water equipment and facilitates a better user experience. In addition, since the anti-water hammer impact valve core of the water heater is closed when hot water is not in use, the changing water pressure is also borne by the anti-water hammer impact valve core, effectively extending the service life of the water heater.

[0036] According to the above embodiment, preferably, the ends of the elastic member are respectively fixed to the diaphragm 8 and the cavity 6. In this example, the elastic member is a spring 7. In addition, a damping hole 16 is opened in the middle of the diaphragm 8, and one end of the spring 7 passes through the damping hole 16 to prevent impurities in the water from clogging the damping hole 16.

[0037] According to the above embodiment, preferably, a control rod 2 connected to the opening and closing assembly is provided above the shell. The opening and closing assembly includes a static ceramic plate 4 fixedly connected to the top of the cavity 6 and a dynamic ceramic plate 3 rotatably connected to the upper surface of the static ceramic plate 4. The static ceramic plate 4 fits the dynamic ceramic plate 3. The surface of the static ceramic plate 4 is provided with a water hole 21 connected to the water outlet hole 11 of the control water channel. The dynamic ceramic plate 3 is provided with a water groove 15. The dynamic ceramic plate 3 is connected to the control rod 2. A sealing gasket 5 is provided between the static ceramic plate 4 and the cavity 6. A positioning boss 10 is provided on the upper part of the cavity 6. A positioning groove 20 is provided on the static ceramic plate 4. The positioning boss 10 cooperates with the positioning groove 20 to keep the position of the static ceramic plate 4 unchanged. A control groove 14 is provided on the dynamic ceramic plate 3. A control boss 13 is provided at the lower end of the control rod 2. The control boss 13 cooperates with the control groove 14 to control the rotation of the dynamic ceramic plate 3. A limiting groove 19 is provided on the inner wall of the housing, and a limiting boss 12 is provided on the control rod 2. The limiting groove 19 cooperates with the limiting boss 12 to limit the rotation range of the control rod 2.

[0038] The principle of the water heater anti-water hammer impact valve core of the present invention is that the water heater anti-water hammer impact valve core controls the on-off of the water path, which in turn controls the on-off of the main water path.

[0039] Specifically, the control rod 2 controls the dynamic ceramic plate 3 to rotate, causing the water channel 15 to be offset from the water hole 21 on the static ceramic plate 4, and the control water path 23 is blocked by the dynamic ceramic plate 3, closing the control water path. Since the control water path is closed, the control water path flows into the cavity 6 and cannot flow out, so the water pressure in the cavity 6 will rise to the same level as the inlet water pressure Pinlet pressure, that is, the water pressure at both ends of the diaphragm 8 is equal. The horizontal cross-sectional area inside the base is the pressure area S1, and the horizontal cross-sectional area of the base water inlet is the pressure area S2. Since the pressure area S1> the pressure area S2, the pressure on the upper end of the diaphragm 8 at this time = Pinlet pressure * S1 + spring 7 force Fspring > the pressure on the lower end of the diaphragm 8 = Pinlet pressure * S2. The diaphragm 8 is pressed tightly against the base 12 and seals the base outlet hole 17 of the base, closing the main water path 22.

[0040] Control lever 2 rotates the movable ceramic disc 3, connecting the water channel 15 with the water hole 21 on the static ceramic disc 4. The control water then flows out through the water channel 15 and the housing outlet hole 18. The control water flows in through the gap between the damping orifice 16 on the diaphragm 8 and the spring 7. The flow rate is very small. The water flow areas of the control water outlet hole 11, the water hole 21, the water channel 15, and the housing outlet hole 18 are all larger than this gap, resulting in leakage. Since the control water channel is open, the control water flows into the cavity 6 and then quickly flows out, without accumulating within the cavity 6. Therefore, the water pressure within the cavity 6 quickly drops to the same level as P0 outside the valve core. That is, the water pressure at the lower end of the diaphragm 8 is greater than the water pressure at the upper end. Therefore, the pressure at the upper end of the diaphragm 8 = P0 * S1 + the spring 7 force F < the pressure at the lower end of the diaphragm 8 = P inlet pressure * S2. The diaphragm 8 is forced to rise and separate from the base, and the main water flows out through the base outlet hole 17.

[0041] This patent also discloses a waterway connection structure for a water heater that is protected from water hammer impact, comprising a water heater and a hot water outlet angle valve connected to the water heater. The structure is characterized in that the structure further comprises an anti-water hammer impact angle valve connected to the water heater, the anti-water hammer impact angle valve comprising the anti-water hammer impact valve core described above for the water heater, the hot water outlet angle valve being connected to the anti-water hammer impact angle valve, and the hot water outlet angle valve being connected to a hot water terminal. The hot water outlet angle valve comprises a hot water inlet 24 connected to the water heater, a hot water outlet 25 connected to the hot water terminal, and a control waterway inlet 26 connected to the anti-water hammer impact angle valve. The anti-water hammer impact angle valve comprises a main waterway inlet 28, a cold water inlet 29 connected to the water heater, and a control waterway outlet 27 connected to the hot water outlet angle valve. The housing outlet hole 18 is connected to the control waterway outlet 27. When the diaphragm 8 is separated from the base outlet hole 17, the base outlet hole 17 is connected to the cold water inlet 29. In this example, the cold water inlet of the water heater can be automatically opened or closed according to the opening or closing of the hot water use. No matter whether the hot water outlet angle valve is closed or the hot water use terminal is closed, the water heater can simultaneously close the cold water entering the water heater by preventing the water hammer from impacting the valve core, so that the water hammer is borne by the valve core, preventing the water heater from being damaged by the impact.

[0042] Among them, the water connection structure for water heaters to protect against water hammer impact includes the following three implementation methods:

[0043] Embodiment 1: The quick-opening valve core of the hot water outlet angle valve is closed, shutting off the hot water outlet. Simultaneously, the control water path to the water heater, which prevents the valve core from being impacted by water hammer, is also shut off. Because the control water path is shut off, the water heater's main water path to the valve core is also shut off. That is, when the hot water outlet angle valve shuts off the hot water outlet, the cold water inlet 29 of the water heater is also closed, preventing the water hammer pressure generated by the instantaneous shutoff from directly impacting the water heater tank. The water hammer pressure is blocked by the water heater's water hammer impact angle valve.

[0044] Embodiment 2: The quick-opening valve core of the hot water outlet angle valve opens, allowing hot water to flow. Simultaneously, the control waterway of the water heater's anti-water hammer valve core also flows along with the hot water to the hot water user terminal. Since the cold water flow in the control waterway is minimal, it barely affects the hot water temperature. When the hot water user terminal is closed, the control waterway is also closed, and the main waterway of the water heater's anti-water hammer valve core is also closed. That is, when the hot water user terminal (such as a shower) shuts off water flow, the water heater's cold water inlet 29 is also closed, and water hammer pressure is blocked by the water heater's anti-water hammer valve.

[0045] Embodiment 3: The quick-opening valve core of the hot water outlet angle valve opens, allowing hot water to flow. Simultaneously, the water heater's control waterway, which protects against water hammer impact on the valve core, also flows along with the hot water to the hot water user terminal. Since the cold water flow in the control waterway is minimal, it barely affects the hot water temperature. At this point, the hot water user terminal is open, and the control waterway is opened. This also opens the main waterway of the water heater's water hammer impact valve core. That is, when the hot water user terminal (such as a shower) begins to flow, the water heater's cold water inlet 29 also opens, supplying hot water.

[0046] According to the above embodiment, preferably, the hot water inlet 24 and the control water outlet 27 are each provided with a one-way valve 30. The one-way valve 30 within the hot water inlet 24 allows only hot water from the water heater to flow into the hot water inlet 24, preventing cold water from the control water channel from entering the water heater through the hot water inlet 24. The one-way valve 30 within the control water outlet 27 of the anti-water hammer angle valve allows only water from the control water outlet 27 to flow into the control water inlet 26, preventing hot water from entering the cold water end. The one-way valve 30 can also be placed at the control water inlet 26.

[0047] The present invention designs a water heater anti-water hammer impact valve core and water channel connection structure, which can automatically open or close the cold water inlet of the water heater according to the opening or closing of hot water water use, so that the water hammer is borne by the water hammer impact valve core, preventing the water heater from being damaged by the impact, while retaining the function of manual closing by the user, making it convenient for the user to maintain the water equipment and conducive to obtaining a better user experience. In addition, since the water heater anti-water hammer impact valve core is closed when hot water is not in use, the changing water pressure is also borne by the water hammer impact valve core, effectively extending the service life of the water heater.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A water heater valve core that is resistant to water hammer impact, characterized in that: The valve body comprises a base, a diaphragm arranged above the base, a cavity arranged above the diaphragm, an opening and closing assembly arranged above the cavity, and a shell arranged outside the opening and closing assembly, a base water outlet hole is provided on one side of the base, an elastic member is connected above the diaphragm, the diaphragm is sealed at the base water outlet hole by the elastic member, a control water channel outlet hole is provided on the upper surface of the cavity, and a shell water outlet hole is provided on the side wall of the shell; a control rod connected to the opening and closing assembly is provided above the shell, the opening and closing assembly comprises a static ceramic plate fixedly connected to the top of the cavity and a dynamic ceramic plate rotatably connected to the upper surface of the static ceramic plate, a water hole connected to the control water channel outlet hole is provided on the surface of the static ceramic plate, the dynamic ceramic plate is provided with a water flow hole, and the dynamic ceramic plate is connected to the control rod; A stepped through hole is provided inside the base, which includes an upper hole and a lower hole connected up and down. The cross-sectional area of the upper hole is larger than that of the lower hole. The lower hole is the water inlet hole of the base. The diaphragm can move up and down in the upper hole. When working, the control rod controls the movable ceramic piece to rotate, so that the water trough and the water holes on the static ceramic piece are staggered, and the control water path is blocked by the passive ceramic piece, and the control water path is closed; the control rod controls the movable ceramic piece to rotate, so that the water trough and the water holes on the static ceramic piece are connected, and the control water flows out through the water trough and the water outlet hole of the outer shell.

2. A water heater anti-water hammer impact valve core according to claim 1, characterized in that: Two ends of the elastic member are fixedly connected to the diaphragm and the cavity respectively.

3. A water heater anti-water hammer impact valve core according to claim 2, characterized in that: The elastic member is a spring.

4. The water heater anti-water hammer impact valve core according to any one of claims 1 to 3, characterized in that: The shell is detachably connected to the base.

5. A water connection structure for a water heater to prevent water hammer impact, comprising a water heater and a hot water outlet angle valve connected to the water heater, characterized in that: It also includes an anti-water hammer impact angle valve connected to the water heater, the anti-water hammer impact angle valve includes the anti-water hammer impact valve core of the water heater according to claim 1, the hot water outlet angle valve is connected to the anti-water hammer impact angle valve, and the hot water outlet angle valve is connected to a hot water terminal; the hot water outlet angle valve includes a hot water inlet end connected to the water heater, a hot water outlet end connected to the hot water terminal, and a control water path inlet end connected to the anti-water hammer impact angle valve, the anti-water hammer impact angle valve includes a main water path inlet end, a cold water inlet end connected to the water heater, and a control water path outlet end connected to the hot water outlet angle valve, and the outer shell water outlet hole is connected to the control water path outlet end.

6. A water channel connection structure for a water heater that protects against water hammer impact according to claim 5, characterized in that: When the diaphragm is separated from the water outlet hole of the base, the water outlet hole of the base is communicated with the cold water inlet end.

7. A water channel connection structure for a water heater that protects against water hammer impact according to claim 6, characterized in that: The hot water inlet and the control water outlet are respectively provided with a one-way valve.

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