Flow stabilizing valve and flow-stabilized water path system applying same

Abstract

Disclosed in the present invention are a flow stabilizing valve and a flow-stabilized water path system applying same. The flow stabilizing valve comprises a valve element, a valve sleeve and a valve housing, wherein the valve element is provided with a pressure-stabilized water channel; the valve element is arranged in the valve sleeve and forms a water chamber cavity with the valve sleeve; the valve sleeve is arranged in the valve housing and forms an air chamber cavity with the valve housing; the valve sleeve can elastically deform; and when a water body flows from the pressure-stabilized water channel into the water chamber cavity, the valve sleeve expands in the direction of the air chamber cavity and maintains a contraction and reset trend of compressing the water body such that the water body flows from the water chamber cavity back to the pressure-stabilized water channel. In the present invention, the flow stabilizing valve is configured to comprise the valve element, the valve sleeve and the valve housing, wherein the valve housing and the valve sleeve form the air chamber cavity, the valve sleeve and the valve element form the water chamber cavity, and when a water pump pumps water or stops pumping water, the valve sleeve expands or contracts and resets to form continuous responsive deformation and to store energy, thereby reducing changes in water flow pulsation and allowing water in the pressure-stabilized water channel to continuously and smoothly flow, that is, the water flow and water pressure of the pressure-stabilized water channel is relatively stable, and the water pressure of the pressure-stabilized water channel can meet the extraction requirements for espresso.

Description

Flow stabilizing valve and its application in flow stabilizing waterway system Technical Field

[0001] The invention relates to a flow stabilizing valve in a coffee machine and a flow stabilizing waterway system used in the valve. Background Art

[0002] A coffee machine is a machine that grinds, brews, and brews coffee. The pressure and water required for coffee extraction are provided by a solenoid pump. Because the solenoid pump's water supply is pulsed (i.e., intermittent), the water pressure in the pipeline increases when the solenoid pump is supplying water and decreases when the solenoid pump stops supplying water. This causes the water pressure in the pipeline to be unstable. This unstable water pressure makes it difficult to achieve the required pressure for espresso extraction. Summary of the Invention

[0003] The object of the present invention is to provide a flow stabilizing valve to solve the problem of unstable water pressure in the pipe of the existing coffee machine using an electromagnetic pump to supply water.

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

[0005] A flow stabilizing valve includes a valve core, a valve sleeve and a valve housing, wherein the valve core has a water inlet, a water outlet and a pressure-stabilizing water channel extending from the water inlet to the water outlet, the valve core is arranged in the valve sleeve and cooperates with the valve sleeve to form a water chamber cavity, the water chamber cavity surrounds the outside of the pressure-stabilizing water channel and is connected to the pressure-stabilizing water channel, the valve sleeve is arranged in the valve housing and cooperates with the valve housing to form an air chamber cavity surrounding the outside of the water chamber cavity, the valve sleeve can be elastically deformed, and the valve sleeve expands toward the direction of the air chamber cavity when water flows from the pressure-stabilizing water channel into the water chamber cavity and maintains a contraction and reset trend of compressing the water body so that the water body flows back from the water chamber cavity to the pressure-stabilizing water channel.

[0006] The advantage of this technical solution is that by configuring the flow stabilizing valve into a valve core, a valve sleeve and a valve shell, the valve shell and the valve sleeve form an air chamber cavity, and the valve sleeve and the valve core form a water chamber cavity. The valve sleeve expands or contracts and resets when the water pump pumps water or stops pumping water to form a continuous response deformation and energy storage, reducing the change in water flow pulsation, so that the water in the pressure-stabilizing water channel flows continuously and smoothly, that is, the water flow and water pressure of the pressure-stabilizing water channel will be relatively stable, so that the water pressure of the pressure-stabilizing water channel can meet the extraction requirements of espresso.

[0007] Furthermore, the pressure-stabilizing water channel is connected to the water chamber cavity through the flow exchange hole, and the valve core has several groups of flow exchange holes, each group of flow exchange holes is composed of flow exchange holes opened on opposite sides of the valve core, and the several groups of flow exchange holes are spaced apart in the axial direction of the valve core.

[0008] Furthermore, the pressure-stabilizing water channel is provided with a flow-limiting strip between any two adjacent flow-exchange hole groups, and the flow-limiting strip extends around the axis of the pressure-stabilizing water channel to form a flow-limiting hole.

[0009] Furthermore, a portion of the valve sleeve opposite to the flow exchange hole bulges outward, and / or a portion of the valve housing opposite to the flow exchange hole bulges outward.

[0010] Furthermore, the valve sleeve is arranged outside the valve core, and a limiting ring is provided on the side walls at both ends of the valve core in the length direction. The limiting ring and the air chamber cavity are spaced apart to form a limiting space, and the two end portions of the valve sleeve in the length direction are respectively embedded in the two limiting spaces and tightly fit with the limiting ring and the air chamber cavity respectively.

[0011] Furthermore, a pressure ring is formed in the air chamber cavity opposite the limit ring. This pressure ring ensures that the longitudinal end of the valve sleeve, which is embedded in the limit space, is tightly fitted against the limit ring. Because the valve sleeve is disposed within the valve housing and cooperates with the valve housing to form an air chamber cavity surrounding the water chamber cavity, the valve sleeve is allowed to expand within a predetermined space (i.e., its expansion cannot exceed the size of the air chamber cavity), thereby preventing the valve sleeve from expanding and rupturing.

[0012] Furthermore, the valve housing has a water inlet connected to the pressure-stabilizing water channel through the water inlet, the water inlet has a water inlet shoulder, and the valve core forms an end of the water inlet that is inserted into the water inlet and abuts against the water inlet shoulder; the valve housing has a water outlet connected to the pressure-stabilizing water channel through the water outlet, the water outlet has a water outlet shoulder, and the valve core forms an end of the water outlet that is inserted into the water outlet and abuts against the water outlet shoulder.

[0013] Furthermore, the valve housing comprises an upper housing and a lower housing, the upper housing is detachably fixedly connected to the lower housing, the upper housing comprises a water outlet, and the lower housing comprises a water inlet.

[0014] In order to solve the problem that the existing coffee machine adopts an electromagnetic pump to supply water, and the water pressure in the pipeline is unstable, which makes it difficult for the water pressure in the pipeline to meet the requirements of extracting concentrated coffee, the present invention provides a flow stabilizing valve, and accordingly, provides a flow stabilizing waterway system, including a diverter pipe, a water pump and a flow stabilizing valve, the diverter pipe has a diverter waterway and a pressure relief waterway, the diverter waterway is connected to the water pump and the flow stabilizing valve through a diverter port, the pressure relief waterway is connected to the diverter waterway and the outside world through a pressure relief port, the diverter switch group for opening and closing the diverter port is provided in the diverter waterway, and the pressure relief waterway is provided with a pressure relief switch group for opening and closing the pressure relief port, and the flow stabilizing valve is the above-mentioned flow stabilizing valve.

[0015] Furthermore, the shunt switch group includes a shunt block and a shunt spring, the shunt spring presses against the side of the shunt block facing away from the shunt port, so as to make the shunt block block block the shunt port, and / or the pressure relief switch group includes a pressure relief block and a pressure relief spring, the pressure relief spring presses against the side of the pressure relief block facing away from the pressure relief port, so as to make the pressure relief block block block the pressure relief port. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0018] FIG1 is a perspective view of a steady flow waterway system disclosed in an embodiment;

[0019] FIG2 is a cross-sectional view of a steady flow waterway system disclosed in an embodiment;

[0020] FIG3 is a partial enlarged view of point A in FIG2 ;

[0021] FIG4 is an exploded view of the flow-stabilizing valve disclosed in the embodiment;

[0022] FIG5 is a perspective view of the valve core in the embodiment;

[0023] FIG6 is a cross-sectional view of the valve core in the embodiment. Implementation Method

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] Embodiment: As shown in Figures 1-6, the steady flow waterway system includes a diverter pipe 1, a water pump 2 and a steady flow valve 3. The diverter pipe 1 has a diverter waterway 101 and a pressure relief waterway 102. The diverter waterway 101 is connected to the water pump 2 and the steady flow valve 3 through a diverter port 103. The pressure relief waterway 102 is connected to the diverter waterway 101 and the outside through a pressure relief port 104. A diverter switch group 4 for opening and closing the diverter port 103 is provided in the diverter waterway 101. A pressure relief switch group 5 for opening and closing the pressure relief port 104 is provided in the pressure relief waterway 102. The steady flow valve 3 includes a valve core 301, a valve sleeve 302 and a valve housing 303. The valve core 301 has a water inlet 304, a water outlet 305 and a pressure-stabilizing water channel 306 extending from the water inlet 304 to the water outlet 305. The valve core 301 is arranged in the valve sleeve 302 and cooperates with the valve sleeve 302 to form a water chamber 307. The water chamber 307 surrounds the pressure-stabilizing water channel 306 and is connected to the pressure-stabilizing water channel 306. The valve sleeve 302 is arranged in the valve housing 303 and cooperates with the valve housing 303 to form an air chamber surrounding the water chamber 307. Cavity 308, valve sleeve 302 can be elastically deformed. When water flows from the pressure-stabilizing waterway 306 into the water chamber cavity 307, valve sleeve 302 expands toward the direction of air chamber cavity 308 and maintains the contraction and reset trend of compressing the water so that the water flows back from the water chamber cavity 307 to the pressure-stabilizing waterway 306. When water flows from the water chamber cavity 307 into the pressure-stabilizing waterway 306, valve sleeve 302 contracts and resets toward the direction of the pressure-stabilizing waterway 306. The pressure-stabilizing waterway 306 is connected to the water chamber cavity 307 through the flow exchange hole 309. The water pump 2 is an electromagnetic pump, and the diversion switch Group 4 includes a diverter block 401 and a diverter spring 402, and the diverter spring 402 presses against the side of the diverter block 401 facing away from the diverter port 103, so as to make the diverter block 401 block the diverter port 103. The pressure relief switch group 5 includes a pressure relief block 501 and a pressure relief spring 502, and the pressure relief spring 502 presses against the side of the pressure relief block 501 facing away from the pressure relief port 104, so as to make the pressure relief block 501 block the pressure relief port 104. The pressure relief port 104 is located between the diverter port 103 and the water inlet 304.

[0026] The working process of the steady flow waterway system is as follows:

[0027] When the water pump 2 supplies water, the diverter block 401 overcomes the diverter spring 402 under the action of water pressure and moves away from the diverter port 103. Water flows from the water inlet 304 into the pressure-stabilizing water channel 306, and the water pressure in the pressure-stabilizing water channel 306 increases. At this time, part of the water flows into the water chamber 307 from the reversing hole 309, causing the water chamber 307 to expand toward the air chamber 308. Part of the water flows out from the water outlet 305. As the water flows into the water chamber 307 from the reversing hole 309, the water chamber 307 expands toward the air chamber 308, thereby reducing the water pressure in the pressure-stabilizing water channel 306.

[0028] When the water pump 2 stops supplying water, the diverter block 401 closes the diverter port 103 under the action of the diverter spring 402, and the water pressure in the pressure-stabilizing water channel 306 decreases. At this time, the water in the water chamber cavity 307 flows back into the pressure-stabilizing water channel 306 from the flow exchange hole 309. Since the water in the water chamber cavity 307 flows into the pressure-stabilizing water channel 306 from the flow exchange hole 309, the water chamber cavity 307 contracts and resets toward the direction of the pressure-stabilizing water channel 306, thereby increasing the water pressure in the pressure-stabilizing water channel 306 (i.e., the pressure of the pressure-stabilizing water channel 306 is increased).

[0029] In summary, the present embodiment provides a flow stabilizing valve and a flow stabilizing water system using the same, so as to solve the problem that the water pressure in the pipeline of the existing coffee machine is unstable due to the electromagnetic pump supplying water, which makes it difficult for the water pressure in the pipeline to meet the requirements of extracting concentrated coffee. The flow stabilizing valve 3 is mainly configured to include a valve core 301, a valve sleeve 302 and a valve shell 303. The valve shell 303 and the valve sleeve 302 form an air chamber 308, and the valve sleeve 302 and the valve core 301 form a water chamber 307. The valve sleeve 302 expands or contracts to reset when the water pump 2 pumps water or stops pumping water, forming a continuous response. The valve sleeve 302 is arranged in the valve housing 303 and cooperates with the valve housing 303 to form an air chamber 308 surrounding the water chamber 307. Therefore, the valve sleeve 302 can expand within a predetermined space (i.e., its expansion cannot exceed the size of the air chamber 308), thereby preventing the valve sleeve 302 from expanding and rupturing.

[0030] Among them, when the pressure in the diversion water channel 101 exceeds the preset value, the pressure relief block 501 overcomes the pressure relief spring 502 under the action of water pressure and moves away from the pressure relief port 104, and water is discharged outward from the pressure relief port 104. When the pressure in the diversion water channel 101 drops to the preset value, the pressure relief block 501 closes the pressure relief port 104 under the action of the pressure relief spring 502.

[0031] In this embodiment of the present invention, the valve core 301 has several groups of flow exchange holes, each group consisting of flow exchange holes on opposite sides of the valve core 301. These groups of flow exchange holes are spaced apart in the axial direction of the valve core 301. Because the valve core 301 has several groups of flow exchange holes, each group consisting of flow exchange holes on opposite sides of the valve core 301, the pressure-stabilizing water channel 306 symmetrically exchanges flow with the water chamber 307 when the water pump 2 is pumping or not, resulting in an effective flow exchange effect.

[0032] In the embodiment of the present invention, a flow-limiting strip 310 is provided between any two adjacent groups of flow exchange holes in the pressure-stabilizing water channel 306. The flow-limiting strip 310 extends around the axis of the pressure-stabilizing water channel 306 to form a flow-limiting hole 311. Because the flow-limiting strip 310 is provided between any two adjacent groups of flow exchange holes in the pressure-stabilizing water channel 306 and the flow-limiting hole 311 extends around the axis of the pressure-stabilizing water channel 306, the flow-limiting hole 311 serves to divert flow when the water pump 2 is pumping water and to limit flow when the water pump 2 stops pumping water. As a result, the flow exchange speeds of the flow exchange holes 309 spaced axially along the pressure-stabilizing water channel 306 are close to those of the water chamber 307 when the water pump 2 is pumping water or when the water pump 2 stops pumping water.

[0033] In an embodiment of the present invention, the portion of the valve sleeve 302 opposite to the flow exchange hole 309 bulges outward. Since the portion of the valve sleeve 302 facing the flow exchange hole 309 bulges outward, the pressure-stabilizing water channel 306 and the water chamber cavity 307 can quickly exchange water when the water pump 2 is pumping water or when the water pump 2 stops pumping water.

[0034] In the embodiment of the present invention, the portion of the valve housing 303 facing the flow exchange hole 309 bulges outward. Since the portion of the valve housing 303 facing the flow exchange hole 309 bulges outward, the space of the air chamber 308 is adapted to the expansion of the water chamber 307, and the adaptability is good.

[0035] In an embodiment of the present invention, the water inlet 304 and the water outlet 305 are respectively arranged at the two end portions of the valve core 301 in the longitudinal direction, and a limiting ring 312 is provided on the two end side walls of the valve core 301 in the longitudinal direction. The limiting ring 312 and the air chamber cavity 308 are spaced apart to form a limiting space (not marked in the figure), and the valve sleeve 302 is sleeved on the outside of the valve core 301, and the two end portions of the valve sleeve 302 in the longitudinal direction are respectively embedded in the two limiting spaces and tightly fit with the limiting ring 312 and the air chamber cavity 308. Since a limiting ring 312 is provided on the side walls at both ends of the valve core 301 in the longitudinal direction, the valve sleeve 302 is sleeved on the outside of the valve core 301, and the two ends of the valve sleeve 302 in the longitudinal direction are respectively embedded in the two limiting spaces and fit tightly with the limiting ring 312 and the air chamber cavity 308 respectively, so that the assembly sealing of the valve core 301, the valve sleeve 302 and the valve shell 303 is good, preventing the water in the water chamber cavity 307 from overflowing into the air chamber cavity 308.

[0036] In this embodiment of the present invention, a pressure ring 314 is formed at a position of the air chamber cavity 308 directly opposite the limiting ring 312. The pressure ring 314 allows the end of the valve sleeve 302, which is embedded in the limiting space, to fit tightly against the limiting ring 312 in the longitudinal direction. Since the pressure ring 314 is formed at a position of the air chamber cavity 308 directly opposite the limiting ring 312, the pressure ring 314 allows the end of the valve sleeve 302 in the longitudinal direction to fit tightly against the limiting ring 312. This improves the sealing performance of the assembly of the valve core 301, the valve sleeve 302, and the valve housing 303, and prevents water in the water chamber 307 from overflowing into the air chamber cavity 308.

[0037] In an embodiment of the present invention, the valve housing 303 has an inlet 315 connected to the pressure-stabilizing water channel 306 via the water inlet 304, the inlet 315 has an inlet shoulder 316, the valve core 301 has an end formed with the water inlet 304 inserted into the inlet 315 and abutted against the inlet shoulder 316, the valve housing 303 has an outlet 317 connected to the pressure-stabilizing water channel 306 via the water outlet 305, the outlet 317 has an outlet shoulder 318, the valve core 301 has an end formed with the water outlet 305 inserted into the outlet 317 and abutted against the outlet shoulder 318. Since one end of the valve core 301 with a water inlet 304 is inserted into the water inlet channel 315 and abuts against the water inlet shoulder 316, and one end of the valve core 301 with a water outlet 305 is inserted into the water outlet channel 317 and abuts against the water outlet shoulder 318, the assembly sealing of the valve core 301 and the valve housing 303 is good, preventing the water in the pressure-stabilizing water channel 306 from overflowing into the air chamber cavity 308.

[0038] In this embodiment of the present invention, the valve housing 303 includes an upper housing 319 and a lower housing 320, which are detachably fixedly connected. The upper housing 319 has a water outlet 317, and the lower housing 320 has a water inlet 315. Because the valve housing 303 includes the detachably fixed upper and lower housings 319 and 320, assembly of the valve housing 303 with the valve core 301 and valve sleeve 302 is quick and convenient.

[0039] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information. In addition, the terms "center of a circle", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] The above descriptions are one or more embodiments provided in conjunction with specific content, and the specific implementation of the present invention is not limited to these descriptions. Any similarity or similarity with the methods, structures, etc. of the present invention, or any technical deduction or replacement based on the concept of the present invention shall be considered as protection of the present invention.

Claims

1. A flow-stabilizing valve, characterized in that: It includes a valve core, a valve sleeve and a valve shell, the valve core has a water inlet, a water outlet and a pressure-stabilizing water channel extending from the water inlet to the water outlet, the valve core is arranged in the valve sleeve and cooperates with the valve sleeve to form a water chamber cavity, the water chamber cavity surrounds the outside of the pressure-stabilizing water channel and is connected with the pressure-stabilizing water channel, the valve sleeve is arranged in the valve shell and cooperates with the valve shell to form an air chamber cavity surrounding the outside of the water chamber cavity, the valve sleeve can be elastically deformed, and the valve sleeve expands in the direction of the air chamber cavity when water flows into the water chamber cavity from the pressure-stabilizing water channel and maintains a contraction and reset trend to compress the water body so that the water body flows back from the water chamber cavity to the pressure-stabilizing water channel.

2. The flow control valve according to claim 1, characterized in that: The pressure-stabilizing water channel is connected to the water chamber cavity through a flow exchange hole. The valve core has a plurality of groups of flow exchange holes. Each group of flow exchange holes is composed of flow exchange holes opened on opposite sides of the valve core. The plurality of groups of flow exchange holes are spaced apart in the axial direction of the valve core.

3. The flow control valve according to claim 2, characterized in that: The pressure-stabilizing water channel is provided with a flow-limiting strip between any two adjacent flow-conversion hole groups, and the flow-limiting strip extends around the axis of the pressure-stabilizing water channel to form a flow-limiting hole.

4. The flow-stabilizing valve according to claim 2, characterized in that: The portion of the valve sleeve opposite to the flow exchange hole bulges outwards, and / or the portion of the valve housing opposite to the flow exchange hole bulges outwards.

5. The flow regulating valve according to claim 1, characterized in that: The valve sleeve is sleeved outside the valve core, and limiting rings are provided on the side walls at both ends of the valve core in the length direction. The limiting rings and the air chamber cavity are spaced apart to form a limiting space, and the two end portions of the valve sleeve in the length direction are respectively embedded in the two limiting spaces and tightly fit with the limiting rings and the air chamber cavity.

6. The flow regulating valve according to claim 5, characterized in that: A pressure ring is formed at a position of the air chamber cavity facing the limiting ring, and the pressure ring enables the end portion of the valve sleeve in the length direction embedded in the limiting space to fit tightly onto the limiting ring.

7. The valve housing has a water inlet channel connected to the pressure-stabilizing water channel through the water inlet, the water inlet channel has a water inlet shoulder, and one end of the valve core formed with the water inlet is inserted into the water inlet channel and abuts against the water inlet shoulder; The valve housing has a water outlet channel connected with the pressure-stabilizing water channel through the water outlet, the water outlet channel has a water outlet sink shoulder, and one end of the valve core formed with the water outlet is inserted into the water outlet channel and abuts against the water outlet sink shoulder.

8. The flow regulating valve according to claim 7, characterized in that: The valve housing comprises an upper housing and a lower housing, wherein the upper housing is detachably fixedly connected to the lower housing, the upper housing comprises a water outlet, and the lower housing comprises a water inlet.

9. Steady flow waterway system, characterized in that: It includes a diverter pipe, a water pump and a steady flow valve, the diverter pipe has a diverter waterway and a pressure relief waterway, the diverter waterway is connected to the water pump and the steady flow valve via a diverter port, the pressure relief waterway is connected to the diverter waterway and the outside via a pressure relief port, a diverter switch group for opening and closing the diverter port is provided in the diverter waterway, a pressure relief switch group for opening and closing the pressure relief port is provided in the pressure relief waterway, and the steady flow valve is the steady flow valve described in any one of claims 1 to 8.

10. The steady flow waterway system according to claim 9, characterized in that: The shunt switch assembly includes a shunt stop block and a shunt stop spring, wherein the shunt stop spring is pressed against a side of the shunt stop block facing away from the shunt port, so as to allow the shunt stop block to block the shunt port; And / or the pressure relief switch group includes a pressure relief block and a pressure relief spring, the pressure relief spring presses against a side of the pressure relief block facing away from the pressure relief port, so as to allow the pressure relief block to block the pressure relief port.

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