Steady flow valve

Abstract

The embodiment of the utility model discloses a flow stabilizing valve which comprises a valve body, a spring assembly and a valve deck. The valve cover is arranged on the valve body and moves up and down along the inner wall of the valve body, a water inlet is formed in the valve cover and extends downwards to form a flow guide channel, and a preset distance is formed between one end, deviating from the water inlet, of the flow guide channel and the valve body; the valve body is of a hollow structure, an overflowing cavity is formed between the inner wall of the valve body and the outer wall of the flow guide channel, and a plurality of water outlets are formed in the valve body and communicate with the overflowing cavity; the spring assembly surrounds the outer wall of the flow guide channel. When the pressure of fluid is increased, the valve cover is pressed downwards, the valve cover moves downwards along the inner wall of the valve body, the spring assembly is compressed, the gap of the spring assembly is decreased, after the fluid entering from the water inlet passes through the flow guide channel, the flow of the fluid entering the overflowing cavity through the spring assembly is decreased, and the flow stabilizing effect is achieved; meanwhile, the flow guide channel, the spring assembly and the overflowing cavity are matched with one another to jointly form an expansion cavity structure, and noise generated when the fluid passes through is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water heater technical field especially relates to a steady flow valve. BACKGROUND

[0002] The steady flow valve is an important component of the water inlet valve assembly of the water heater, which functions to stabilize fluid flow, so that when the water pressure is too large, it can be stabilized within a reasonable range, thereby ensuring the stability of the water outlet of the water heater.

[0003] The existing steady flow valve of the gas water heater is generally a valve core pressure spring, which reduces the gap between the two plastic valve ports to achieve steady flow. This design usually only contains a single spring, and the structure is sharp. When the water pressure changes, the steady flow valve may not provide sufficient stability, resulting in inaccurate flow control and affecting the stability of the water outlet of the water heater. The gap between the valve core and the plastic valve port is small, and when the fluid passes through, it may produce a lot of noise, affecting the user experience. SUMMARY

[0004] The steady flow valve provided by the present application solves the problems of poor stability and high noise of the steady flow valve. The technical solution of the present application is as follows:

[0005] On the one hand, the present application provides a kind of steady flow valve, including valve body, spring assembly and valve cover;

[0006] The valve cover is arranged on the valve body and moves up and down along the inner wall of the valve body, the water inlet is formed on the valve cover, the water inlet extends downward to form a flow guide channel, and a predetermined distance is provided between the end of the flow guide channel away from the water inlet and the valve body;

[0007] The valve body is a hollow structure, and the flow passage is formed between the inner wall of the valve body and the outer wall of the flow guide channel, a plurality of water outlets are formed on the valve body, and the plurality of water outlets are communicated with the flow passage;

[0008] The spring assembly is arranged around the outer wall of the flow guide channel.

[0009] In some specific embodiments, the spring assembly includes a first spring and a second spring, and the first spring is sleeved in the second spring;

[0010] The valve body includes a shell and a valve seat, and the valve seat is arranged at the end of the shell away from the valve cover;

[0011] The two ends of the first spring and the second spring are respectively in abutment with the valve cover and the valve seat.

[0012] In some specific embodiments, the edge of the valve cover is provided with an annular accommodating groove, and a sealing ring is embedded in the accommodating groove, and the sealing ring is arranged in abutment with the inner wall of the shell.

[0013] In some specific embodiments, the valve seat center position is recessed downward away from the valve cover to form a limiting portion, the limiting portion comprising a first limiting portion and a second limiting portion;

[0014] The valve cover is provided with a third limiting portion and a fourth limiting portion along the circumference of the water inlet, which cooperate with the first limiting portion and the second limiting portion;

[0015] The first spring is arranged between the first limiting portion and the third limiting portion;

[0016] The second spring is arranged between the second limiting portion and the fourth limiting portion.

[0017] In some specific embodiments, the shell extends to the side of the water inlet to form a stop portion, and the valve cover is arranged below the stop portion.

[0018] In some specific embodiments, the valve seat is arranged in a stepped manner, comprising a first step and a second step;

[0019] The first step is fixedly connected with the valve seat, and the first step is provided with the plurality of water outlets;

[0020] The second step is provided with the first limiting portion and the second limiting portion.

[0021] In some specific embodiments, the valve seat is provided with a damping groove at a position opposite to the flow guide channel.

[0022] In some specific embodiments, the coil spacing of the first spring and the coil spacing of the second spring are arranged in a staggered manner.

[0023] In some specific embodiments, the elastic coefficients of the first spring and the second spring are the same.

[0024] In another aspect, the present application also provides a water heater comprising the above-mentioned steady flow valve.

[0025] By adopting the above technical solution, the steady flow valve provided by the present application has the following beneficial effects:

[0026] The embodiment of the present application discloses a steady flow valve, which comprises a valve body, a spring assembly and a valve cover; the valve cover is arranged on the valve body and moves up and down along the inner wall of the valve body, a water inlet is arranged on the valve cover, the water inlet extends downward to form a flow guide channel, and a preset distance is arranged between the end of the flow guide channel away from the water inlet and the valve body; the valve body is a hollow structure, a flow passage is formed between the inner wall of the valve body and the outer wall of the flow guide channel, a plurality of water outlets are arranged on the valve body, and the plurality of water outlets are communicated with the flow passage; and the spring assembly is arranged around the outer wall of the flow guide channel. When the fluid pressure becomes large, the valve cover is pressed down, the valve cover moves downward along the valve body, the spring assembly is compressed, the gap of the spring assembly becomes small, the flow of the fluid entering the flow passage from the water inlet becomes small, and the effect of steady flow is realized; meanwhile, the flow guide channel, the spring assembly and the flow passage are matched with each other and jointly form an expansion cavity structure, so that the noise generated when the fluid passes through is effectively reduced. Moreover, the steady flow valve has simple structure and reduces manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0028] Figure 1 The cross-sectional view of the steady flow valve provided by the embodiment of the present application is shown in the figure.

[0029] Figure 2 The structural schematic diagram of the steady flow valve provided by the embodiment of the present application is shown in the figure. Figure 1 ;

[0030] Figure 3 The structural schematic diagram of the steady flow valve provided by the embodiment of the present application is shown in the figure. Figure 2 ;

[0031] Figure 4 The explosion view of the steady flow valve provided by the embodiment of the present application is shown in the figure.

[0032] The following is a supplementary description of the drawings:

[0033] 1-valve body; 11-housing; 111-stop portion; 12-valve seat; 121-water outlet; 122-first limiting portion; 123-second limiting portion; 124-damping groove;

[0034] 2-spring assembly; 21-first spring; 22-second spring;

[0035] 3-valve cover; 31-water inlet; 32-flow guide channel; 33-receiving groove; 34-third limiting portion; 35-fourth limiting portion;

[0036] 4 - flow passage;

[0037] 5 - sealing ring. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0039] The term "one embodiment" or "an embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one implementation of the application. The appearances of the term "one embodiment" or "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily referring to one specific embodiment. In the description of the application, the terms "upper", "lower", "top", "bottom", etc. indicate the orientation or positional relationship based on the drawings shown in the figures, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein.

[0040] When a numerical range is disclosed herein, the range is to be construed as continuous, and includes the minimum value and the maximum value of the range, and every value between the minimum value and the maximum value. Further, when the range refers to integers, every integer between the minimum value and the maximum value of the range is included. In addition, when multiple ranges are provided to describe a feature or a characteristic, the ranges can be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood as including any and all sub-ranges subsumed therein. For example, a specified range of "1 to 10" is to be construed as including any and all sub-ranges between the minimum value of 1 and the maximum value of 10. Exemplary sub-ranges of the range 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, etc.

[0041] Please refer to Figure 1 and Figure 2The embodiment of the present application provides a steady flow valve, which comprises a valve body 1, a spring assembly 2 and a valve cover 3; specifically, the valve body 1 is the main part of the steady flow valve, which is made of a solid and durable material, such as plastic or metal, to provide the necessary mechanical support and protection for the internal components. The spring assembly 2 is installed in the valve body, and when the valve cover 3 moves downward, the spring assembly 2 is compressed, the gap between the spring assembly 2 becomes smaller, thereby maintaining the stability of the fluid. The valve cover 3 is located at the top of the valve body 1 and is used to close the valve body 1, and the valve cover 3 can move up and down along the inner wall of the valve body 1.

[0042] The valve cover 3 is arranged on the valve body 1 and moves up and down along the inner wall of the valve body 1, and the valve cover 3 is provided with a water inlet 31, the water inlet 31 extends downward to form a flow guide channel 32, and the end of the flow guide channel 32 away from the water inlet 31 is provided with a predetermined distance from the valve body 1; specifically, the valve cover 3 can move up and down along the inner wall of the valve body 1, and automatically adjust the position according to the change of water pressure, so as to maintain the stability of the fluid. The water inlet 31 is arranged at the center position of the valve cover 3, and the valve cover 3 extends downward along the water inlet 31 to form a flow guide channel 32; the end of the flow guide channel 32 away from the water inlet 31 is provided with a predetermined distance from the bottom of the valve body 1, and the fluid enters the water inlet 31 and flows along the flow guide channel 32, and enters the overflow cavity 4 after passing through the spring assembly 2 at the predetermined distance position, and finally flows out from the water outlet 121. Ensure that the fluid has enough space to buffer and adjust when passing through the valve body 1, thereby reducing the impact of the fluid on the inside of the valve body 1.

[0043] The valve body 1 is a hollow structure, the inner wall of the valve body 1 and the outer wall of the flow guide channel 32 form an overflow cavity 4, and a plurality of water outlets 121 are arranged on the valve body 1, and the plurality of water outlets 121 are communicated with the overflow cavity 4; specifically, the overflow cavity 4 is a space defined by the inner wall of the valve body 1 and the outer wall of the flow guide channel 32, which is used to accommodate the fluid, the fluid flows into the water inlet 31, passes through the flow guide channel 32, enters the overflow cavity 4 after passing through the spring assembly 2, and finally flows out from the water outlet 121. A plurality of water outlets 121 are arranged on the valve body 1, and the plurality of water outlets 121 are communicated with the overflow cavity 4, which can improve the distribution efficiency of the fluid and ensure that the fluid flows out uniformly from each water outlet.

[0044] The spring assembly 2 is arranged around the outer wall of the flow guide channel 32; specifically, the spring assembly 2 is arranged around the outer wall of the flow guide channel 32, and the flow guide channel 32 can play a positioning role for the spring assembly 2, which simplifies the installation of the spring assembly 2 and makes it easier to place the spring assembly 2 in the appropriate position during installation. The spring assembly 2 can exert a predetermined force on the valve cover 3 through its elastic force, which can maintain the stable position of the valve cover 3 even in the case of fluid pressure change, and the spring assembly 2 also helps to absorb the vibration and impact generated by the flow of fluid, preventing the valve body 1 from being damaged and prolonging its service life. When the valve cover 3 needs to be opened or closed, the spring assembly 2 can provide auxiliary force to help the valve cover 3 move up and down along the inner wall of the valve body 1 smoothly.

[0045] In some specific embodiments, referring to Figure 1 and Figure 4 , the spring assembly 2 comprises a first spring 21 and a second spring 22, the first spring 21 is sleeved in the second spring 22; the design of double springs not only improves the stability of the flow stabilizing valve, but also reduces fluid noise and vibration, thereby reducing noise.

[0046] The valve body 1 comprises a shell 11 and a valve seat 12, the valve seat 12 is arranged at the end of the shell 11 away from the valve cover 3; specifically, the shell 11 is usually in the shape of a barrel or other suitable shape for fluid flow, and the internal space of the shell 11 forms a flow cavity 4 of the valve body 1.

[0047] The two ends of the first spring 21 and the second spring 22 respectively abut against the valve cover 3 and the valve seat 12; specifically, the first spring 21 and the second spring 22 are arranged between the valve cover 3 and the valve seat 12 and are closely fitted with the valve cover 3 and the valve seat 12, preventing displacement or rotation of the first spring 21 and the second spring 22 under high pressure or rapid pressure change, thereby improving the stability of the first spring 21 and the second spring 22.

[0048] In some specific embodiments, referring to Figure 1 , the edge of the valve cover 3 is provided with an annular accommodating groove 33, and a sealing ring 5 is embedded in the accommodating groove 33, and the sealing ring 5 is arranged in close contact with the inner wall of the shell 11. The close contact of the sealing ring 5 with the inner wall of the shell 11 can effectively prevent fluid leakage and improve the sealing performance of the flow stabilizing valve, and the long-term stable sealing effect is ensured by relying on the compression stress of the sealing ring and the resilience of the material; embedding the sealing ring 5 in the annular accommodating groove 33 can prevent displacement or ejection of the sealing ring under the action of fluid pressure, thereby ensuring the stability and reliability of the sealing ring; at the same time, the embedded design of the sealing ring 5 makes the installation and replacement more simple and fast, and when the sealing ring 5 needs to be replaced, the valve cover 3 is only needed to be removed, the damaged sealing ring 5 is taken out and replaced with a new one, thereby improving the convenience of maintenance; and the annular accommodating groove 33 provides a protection space for the sealing ring 5, preventing the sealing ring 5 from being mechanically damaged during operation, thereby prolonging the service life of the sealing ring 5.

[0049] In some specific embodiments, referring to Figure 1 , the valve seat 12 is recessed downward at the center position away from the valve cover 3 to form a limiting portion, and the limiting portion comprises a first limiting portion 122 and a second limiting portion 123; specifically, the first limiting portion 122 and the second limiting portion 123 are arranged adjacent to each other, and the shapes of the first limiting portion 122 and the second limiting portion 123 are annular grooves, and one end of the first spring 21 and the second spring 22 is respectively clamped in the grooves, thereby ensuring that the spring assembly 2 will not fall off when subjected to external force, and improving the stability of the spring assembly 2 and the overall reliability of the flow stabilizing valve.

[0050] The valve cover 3 is provided with a third limiting portion 34 and a fourth limiting portion 35 along the circumference of the water inlet 31, which cooperate with the first limiting portion 122 and the second limiting portion 123; specifically, the third limiting portion 34 and the fourth limiting portion 35 are adjacently arranged, the third limiting portion 34 is arranged around the flow guide channel 32, and the third limiting portion 34 and the fourth limiting portion 35 are arranged opposite to the first limiting portion 122 and the second limiting portion 123, respectively.

[0051] The first spring 21 is arranged between the first limiting portion 122 and the third limiting portion 34, and the second spring 22 is arranged between the second limiting portion 123 and the fourth limiting portion 35; the precise cooperation between the third limiting portion 34 and the fourth limiting portion 35 and the corresponding limiting portions on the valve seat 12 ensures that the first spring 21 and the second spring 22 will not be displaced or rotated due to external force or vibration, thereby maintaining their stability and reliability.

[0052] In some specific embodiments, referring to Figure 1 and Figure 2 , the shell 11 extends towards the water inlet 31 to form a stop portion 111, and the valve cover 3 is arranged below the stop portion 111; specifically, the end of the shell 11 near the water inlet 31 extends inward to form the stop portion 111, and the valve cover 3 is arranged below the stop portion 111, which helps to ensure that the valve cover 3 remains in the correct position during assembly and operation, preventing the valve cover 3 from falling off or being displaced due to fluid pressure or other external forces; the cooperation between the stop portion 111 and the valve cover 3 can provide a sealing surface to prevent fluid leakage. At the same time, the presence of the stop portion 111 can reduce the vibration of the valve cover 3, thereby reducing noise, improving operating efficiency and service life.

[0053] In some specific embodiments, referring to Figure 1 and Figure 3 , the valve seat 12 is arranged in a stepped manner, including a first step and a second step; the stepped design helps to optimize fluid dynamics, reduce turbulence and vortex of fluid when passing through the valve body 1, thereby reducing energy loss and noise.

[0054] The first step is fixedly connected with the valve seat 12, and a plurality of water outlets 121 are arranged on the first step; the arrangement of a plurality of water outlets 121 on the first step can improve the distribution efficiency of the fluid, ensuring that the fluid flows out uniformly from the water outlets 121 and accurately controls the fluid distribution.

[0055] The first limiting portion 122 and the second limiting portion 123 are arranged on the second step, and the first limiting portion 122 and the second limiting portion 123 cooperate with the third limiting portion 34 and the fourth limiting portion 35 on the valve cover 3, which helps to ensure the stability of the valve cover 3 during movement, can buffer and support the spring assembly 2, and reduce the impact and vibration caused by the change of fluid pressure or mechanical vibration.

[0056] In some specific embodiments, referring to Figure 1 , the valve seat 12 is provided with a damping groove 124 at the position opposite to the flow guide channel 32. Specifically, the second limiting part 123 is arranged around the damping groove 124. When the fluid passes through the flow guide channel 32 and impacts on the valve seat 12, the damping groove 124 can act as a buffer zone to reduce the direct impact of the fluid on the valve seat, thereby reducing vibration and noise and improving the safety of the entire system.

[0057] In some specific embodiments, the coil spacing of the first spring 21 and the coil spacing of the second spring 22 are arranged in a staggered manner; the staggered spring can more effectively absorb the vibration generated when the fluid passes through. When the fluid passes through the spring assembly 2, the first spring 21 and the second spring 22 can absorb and weaken the vibration, which can reduce the resonance phenomenon and thereby reduce the noise caused by fluid flow.

[0058] In some specific embodiments, the first spring 21 and the second spring 22 have the same elastic coefficient. Specifically, the first spring 21 and the second spring 22 have the same elastic coefficient, so that the first spring 21 and the second spring 22 will produce the same deformation under the same force, and the first spring 21 and the second spring 22 provide the same force feedback to ensure that the valve cover 3 moves smoothly when the fluid pressure changes, providing balanced force distribution to avoid the valve cover 3 from being offset or damaged due to unbalanced force.

[0059] The embodiments of the present application also provide a water heater comprising the above flow stabilizing valve. The water heater can maintain a reasonable water outlet flow rate when the water pressure fluctuates, thereby ensuring the stability of the water outlet of the water heater.

[0060] The embodiments of the present application disclose a flow stabilizing valve, which comprises a valve body, a spring assembly and a valve cover. The valve cover is arranged on the valve body and moves up and down along the inner wall of the valve body. A water inlet is formed in the valve cover and extends downward to form a flow guide channel. A preset distance is provided between the end of the flow guide channel away from the water inlet and the valve body. The valve body is a hollow structure, and a flow passage is formed between the inner wall of the valve body and the outer wall of the flow guide channel. A plurality of water outlets are formed in the valve body and communicate with the flow passage. The spring assembly is arranged around the outer wall of the flow guide channel. When the water pressure increases, the valve cover is pressed downward, the valve cover moves downward along the valve body, the spring assembly is compressed, the gap of the spring assembly becomes smaller, the flow of the fluid entering the flow passage through the spring assembly after passing through the flow guide channel becomes smaller, and the flow stabilizing effect is achieved. Meanwhile, the flow guide channel, the spring assembly and the flow passage cooperate with each other to form an expansion chamber structure, which effectively reduces the noise generated when the fluid passes through. Moreover, the flow stabilizing valve has a simple structure and reduces the manufacturing cost.

[0061] The above merely describes optional embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A steady flow valve characterized by, The valve body (1), the spring assembly (2) and the valve cover (3) are included. The valve cover (3) is arranged on the valve body (1) and moves up and down along the inner wall of the valve body (1), the water inlet (31) is arranged on the valve cover (3), the water inlet (31) extends downward to form a flow guide channel (32), and a preset distance is arranged between the end of the flow guide channel (32) away from the water inlet (31) and the valve body (1). The valve body (1) is a hollow structure, the over-flow cavity (4) is formed between the inner wall of the valve body (1) and the outer wall of the flow guide channel (32), and a plurality of water outlets (121) are arranged on the valve body (1) and communicated with the over-flow cavity (4). The spring assembly (2) is arranged around the outer wall of the flow guide channel (32).

2. A steady flow valve according to claim 1, wherein The spring assembly (2) includes the first spring (21) and the second spring (22), the first spring (21) is sleeved in the second spring (22). The valve body (1) includes the shell (11) and the valve seat (12), the valve seat (12) is arranged at the end of the shell (11) away from the valve cover (3). The two ends of the first spring (21) and the second spring (22) are respectively abutted with the valve cover (3) and the valve seat (12).

3. A steady flow valve according to claim 2, wherein The edge of the valve cover (3) is provided with an annular accommodating groove (33), the sealing ring (5) is embedded in the accommodating groove (33), and the sealing ring (5) is arranged in close contact with the inner wall of the shell (11).

4. A steady flow valve according to claim 2, wherein The valve seat (12) is recessed downward at the center position away from the valve cover (3) to form a limiting portion, and the limiting portion includes a first limiting portion (122) and a second limiting portion (123). The valve cover (3) is provided with a third limiting portion (34) and a fourth limiting portion (35) along the periphery of the water inlet (31) and matched with the first limiting portion (122) and the second limiting portion (123). The first spring (21) is arranged between the first limiting portion (122) and the third limiting portion (34). The second spring (22) is arranged between the second limiting portion (123) and the fourth limiting portion (35).

5. A steady flow valve according to claim 2, wherein The shell (11) extends to the side of the water inlet (31) to form a stop portion (111), and the valve cover (3) is arranged below the stop portion (111).

6. A steady flow valve according to claim 2, wherein The valve seat (12) is arranged in a stepped manner and includes a first step and a second step. The first step is fixedly connected with the valve seat (12), and the plurality of water outlets (121) are arranged on the first step. The first limiting portion (122) and the second limiting portion (123) are arranged on the second step.

7. A steady flow valve according to claim 2, wherein The valve seat (12) is provided with a damping groove (124) at the position opposite to the flow guide channel (32).

8. A steady flow valve according to claim 2, wherein, The coil spacing of the first spring (21) is arranged in a staggered manner with the coil spacing of the second spring (22).

9. A steady flow valve according to claim 2, wherein, The elastic coefficients of the first spring (21) and the second spring (22) are the same.

10. A water heater, characterized by The steady flow valve of any one of claims 1-9 is included.

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