WO2023024297A1 - 一种防止虹吸倒流的双水路冲水阀 - Google Patents

一种防止虹吸倒流的双水路冲水阀 Download PDF

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Publication number
WO2023024297A1
WO2023024297A1 PCT/CN2021/133461 CN2021133461W WO2023024297A1 WO 2023024297 A1 WO2023024297 A1 WO 2023024297A1 CN 2021133461 W CN2021133461 W CN 2021133461W WO 2023024297 A1 WO2023024297 A1 WO 2023024297A1
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WIPO (PCT)
Prior art keywords
water
valve
water outlet
siphon
water inlet
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PCT/CN2021/133461
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English (en)
French (fr)
Inventor
陈风
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厦门帝恒诺卫浴科技有限公司
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Publication of WO2023024297A1 publication Critical patent/WO2023024297A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves

Definitions

  • the invention relates to a flushing valve, in particular to a dual waterway flushing valve for preventing siphon backflow.
  • An existing flush valve includes a water inlet pipeline, a pumping device, and a water outlet pipeline.
  • the water inlet pipeline is connected to a public waterway, and the water outlet pipeline is connected to a bedpan. And when the pumping device stops pumping water, the outlet pipeline will produce a siphon phenomenon.
  • a one-way valve is often added to the outlet pipeline, which can not only make the water inlet pipeline discharge normally, but also ensure that the outlet pipeline does not flow back to The water inlet pipe pollutes the water source.
  • the one-way valve of the existing flush valve is a spring one-way valve, which is in a normally closed state with the inlet end, that is, only when the water inlet pipe suddenly stops, the negative pressure generated will push the spring toward the water inlet pipe. direction suction, the spring one-way valve can close the water inlet pipeline to avoid the backflow of water in the water outlet pipeline.
  • a vacuum node occurs, the spring cannot be sucked off in time, causing the water in the outlet pipe to flow back into the water inlet pipe, thereby polluting the entire public waterway with toilet water and affecting water sanitation.
  • the height difference between the port of the water inlet port and the port of the water outlet port is small, and even in the case of no water pressure, the residual water at the water outlet end easily flows back to the port of the water inlet port.
  • the invention provides a dual waterway flush valve for preventing siphon backflow, which can effectively solve the problem that the residual water in the above flush valve is easy to flow back to the water inlet and cause public waterway pollution.
  • a double waterway flush valve for preventing siphon backflow comprising: a valve body having a water inlet end and a water outlet end, the water inlet end includes an outer pipe part, and The inner inner pipe part, the pipe edge of the inner pipe part is higher than the upper edge of the water outlet, the inner pipe part is provided with an anti-siphon valve, and an air intake assembly is arranged above the anti-siphon valve.
  • the anti-siphon valve closes the bottom of the air intake assembly when the water inlet enters water, and closes the pipe edge of the water inlet when negative pressure is generated at the water inlet.
  • the anti-siphon valve includes: elastic pressure
  • the elastic pressing piece is attached to the pipe edge of the water inlet end under its own weight or when negative pressure is generated at the water inlet end, and the closing pressing piece is arranged above the elastic pressing piece, the closing pressing piece The component is pressed against the air intake component by the pressure of the water flow at the water inlet end.
  • the anti-siphon valve also includes a valve stem that passes through the elastic pressure piece and closes the pressure piece, and a splitter head is arranged at the bottom of the valve stem. reciprocating motion.
  • the diverter head is a conical structure with a cone head facing the water inlet direction of the water inlet end.
  • the water inlet end further includes a connecting portion connected to an external water source, and the connecting portion is connected to the bottom of the inner pipe portion.
  • the inner tube part and the connecting part are integrally formed, or the inner tube part and the connecting part are detachably connected.
  • a sealing surface is also provided between the anti-siphon valve and the intake assembly, and the sealing surface includes a gasket that is close to the intake assembly, and is arranged in the gasket and is concave toward the intake assembly.
  • the air intake concave surface on one side of the air intake assembly.
  • the air intake assembly includes an air intake cover connected to the outer pipe part, a cavity provided in the air intake cover, and a joint provided on one side of the air intake cover, the The inner side of the mold cavity is guided and connected with a valve stem, and several air inlets are arranged on the air inlet cover.
  • the water outlet assembly includes a water outlet part connected to the water outlet end, a water outlet upper cover arranged on the water outlet part, connected between the water outlet upper cover and the water outlet part
  • the water-stop pad in between is arranged on the solenoid valve on the water outlet cover, and the water-stop pad is used to open or close the channel between the water outlet end and the water outlet piece.
  • a first guide vane is provided at a position where the outer peripheral surface of the inner pipe part is flush with the water outlet end, and a second guide vane is provided at a position where the water outlet member is flush with the water outlet end.
  • a water tank includes the above-mentioned dual waterway flush valve for preventing siphon backflow, the water tank includes a water inlet channel, and the water inlet channel communicates with the water inlet end.
  • the beneficial effect of the present invention is: the present invention makes the height of the inner pipe part higher than the height of the upper edge of the water outlet by increasing the height of the inner pipe part, so that even if there is backflow at the water outlet, it is too late to cross the height of the inner pipe part and then return to the
  • the water inlet end prevents the phenomenon that the water flow from the water outlet end flows back to the water inlet end, and separates the water inlet end from the water outlet end so that the residual water at the water outlet end cannot enter the water inlet end and pollute the water source.
  • the anti-siphon valve therein closes the water inlet end by its own weight, so that the anti-siphon valve and the water inlet end are in a normally closed state, and the anti-siphon valve and the air inlet assembly are in a normally open state. Negative pressure is generated, the anti-siphon valve and the water inlet will be more tightly closed in the original closed state, and if the inertial backflow of siphon water flow occurs at the water outlet, it will not flow into the water inlet, but will often open The channel is discharged through the intake assembly, which has higher sensitivity and better sealing performance.
  • the invention shortens the stroke between the anti-siphon valve and the air intake assembly by improving the inner pipe part, so that the anti-siphon valve can quickly close the air inlet of the air intake assembly when receiving the pressure water at the water inlet end, preventing water from flowing The air inlet seeps out, causing waste; and when the water inlet suddenly loses water and negative pressure is generated, the inner pipe can be quickly closed to prevent the water at the outlet from flowing back into the public waterway at the inlet.
  • the present invention selects an elastic elastic pressing piece, which can cling to the edge of the inner pipe when negative pressure is generated in the inner pipe, and seals the edge of the pipe in a concave form with high sealing performance. , that is, the elastic pressing piece deforms quickly, and quickly bounces the entire anti-siphon valve upward, with high sensitivity and good anti-overflow effect.
  • the present invention selects a hard sealing pressure piece and cooperates with a flexible sealing surface.
  • the hard sealing pressure piece will press against the flexible sealing surface to improve the combination degree of the two, thereby improving the air intake component. Compatibility with anti-siphon valve.
  • Fig. 1 is a cross-sectional view of a dual waterway flush valve for preventing siphon backflow provided by an embodiment of the present invention.
  • Fig. 2 is a structural schematic diagram of a dual water channel flush valve for preventing siphon backflow provided by an embodiment of the present invention.
  • Fig. 3 is an exploded view of a dual waterway flush valve for preventing siphon backflow provided by Embodiment 1 of the present invention.
  • Fig. 4 is a schematic diagram of a first working state of a dual waterway flush valve for preventing siphon backflow provided by Embodiment 1 of the present invention.
  • Fig. 5 is a schematic diagram of a second working state of a dual waterway flush valve for preventing siphon backflow provided by Embodiment 1 of the present invention.
  • Fig. 6 is a schematic structural diagram of an air intake assembly provided by Embodiment 1 of the present invention.
  • FIG. 7 is a schematic structural diagram of a first guide vane provided by Embodiment 1 of the present invention.
  • FIG. 8 is a schematic structural diagram of a second guide vane provided by Embodiment 1 of the present invention.
  • Fig. 9 is a schematic structural view of a dual waterway flush valve for preventing siphon backflow provided by Embodiment 2 of the present invention.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • a dual waterway flush valve for preventing siphon backflow includes: a valve body having a water inlet end 1 and a water outlet end 2, the water inlet end 1 includes an outer pipe portion 13, and a set In the inner pipe part 12 inside the outer pipe part 13, the pipe edge of the inner pipe part 12 is higher than the upper edge of the water outlet end 2, and the inner pipe part 12 is provided with an anti-siphon valve 3, the An air inlet assembly 5 is arranged above the anti-siphon valve 3, and the anti-siphon valve 3 closes the bottom of the air inlet assembly 5 when the water inlet end 1 enters water, and generates negative pressure at the water inlet end 1 When closing the pipe rim of the water inlet end 1, it further includes a water outlet assembly 6.
  • the pipe edge of the inner pipe part 12 is higher than the upper edge of the water outlet 2, the water remaining in the water outlet 2 can be prevented from flowing into the water inlet 1, and even if there is a backflow phenomenon at the water outlet 2, it is necessary to Backflow to a certain flow rate and height may cause backflow to the anti-siphon valve 3 on the inner pipe part 12, and, due to the self-weight effect of the anti-siphon valve 3, it can ensure that the water inlet 1 will generate negative pressure once it loses water, preventing The siphon valve 3 can quickly seal the water inlet 1, and the high design of the inner pipe 12 cooperates with the anti-siphon valve 3 that can move with its own weight and pressure water. The two-pronged approach prevents the backflow of the water outlet 2 from flowing into the water inlet 1 , The elevated inner pipe portion 12 provides sufficient buffer time for the movement of the anti-siphon valve 3 .
  • the anti-siphon valve 3 includes: an elastic pressing member 32, the elastic pressing member 32 clings to the pipe edge of the water inlet 1 under its own weight or when the water inlet 1 generates negative pressure, And the sealing pressure piece 33 arranged above the elastic pressure piece 32 , the sealing pressure piece 33 is pressed against the air intake assembly 5 by the water flow pressure of the water inlet end 1 .
  • a sealing surface 4 is also provided between the anti-siphon valve 3 and the intake assembly 5, and the sealing surface 4 includes a The sealing gasket 41 of the assembly 5 and the air intake concave surface 42 disposed in the sealing gasket 41 and concave to the side of the air intake assembly 5 .
  • the soft elastic pressing piece 32 cooperates with the pipe edge of the rigid inner pipe portion 12, and the rigid sealing pressing piece 33 cooperates with the soft sealing surface 4, which can ensure that the elastic pressing piece 32 has a good resistance to water ingress to a great extent.
  • the anti-siphon valve 3 also includes a valve stem 34 that runs through the elastic pressing piece 32 and the sealing pressing piece 33, and the splitter head 31 is arranged at the bottom of the valve stem 34, and the valve stem 34 is along the Axial direction reciprocating motion.
  • the diverter head 31 is a conical structure with a conical head facing the water inlet direction of the water inlet end 1, which can divert the pressure water pouring in from the water inlet end 1, and let the pressure water disperse along both ends. outflow, preventing turbulent or eddy currents from forming at the splitter head 31.
  • the water inlet end 1 also includes a connecting portion 11 connected to an external water source, and the connecting portion 11 is connected to the bottom of the inner pipe portion 12 .
  • the inner tube part 12 is integrally formed with the connecting part 11 .
  • the air intake assembly 5 includes an air intake cover 51 connected to the outer tube portion 13, and a cavity 52 arranged in the air intake cover 51 is arranged on one side of the air intake cover 51
  • the joint 53 of the mold cavity 52 is guided and connected with the valve stem 34, and the air inlet cover 51 is provided with several air inlets 54, and the air inlet assembly 5 communicates with the external atmosphere through the air inlet 54, which can destroy Siphoning in the flush valve.
  • the cavity 52 can limit the movement path of the valve stem 34 to ensure that the valve stem 34 always moves along the vertical direction, and the joint 53 can timely lead out the suction water that may be sucked in, so as to prevent accumulation in the intake cover 51 from hindering the intake. gas.
  • the water outlet assembly 6 includes a water outlet part 64 connected to the water outlet end 2, and the water outlet upper cover 62 arranged on the water outlet part 64 is connected between the water outlet upper cover 62 and the water outlet part 64.
  • the water stop pad 63 between them is the solenoid valve 61 provided on the water outlet cover 62 , and the water stop pad 63 is used to open or close the channel between the water outlet end 2 and the water outlet member 64 .
  • first guide vane 121 is provided at the position where the outer peripheral surface of the inner pipe portion 12 is flush with the water outlet end 2
  • second guide vane 121 is provided at a position where the water outlet member 64 is flush with the water outlet end 2 .
  • the first deflector 121 can guide and divide the water flow flowing from the inner pipe part 12 into the outer pipe part 13, and the second deflector 641 can guide the water flow flowing into the water outlet part 64 from the outer pipe part 13. , diversion, can reduce the turbulence and turbulent flow here, and at the same time, reduce the impact and retention of the water flow at this time, reduce the flow resistance so that the water flow can pass quickly, and reduce the noise of the water flow.
  • the specific implementation process of the present invention is as follows: when the water supply end 1 is normally supplied with water: at this time, the pressure water will pour in through the connection part 11, and then flow into the inner pipe part 12, and the diverter head 31 will be lifted up, so that the diverter head 31 will push the valve stem 34 moves upward, and the elastic pressing piece 32 and the closing pressing piece 33 sleeved on the valve stem 34 will also move accordingly. When the elastic pressing piece 32 is lifted up, the pressure water will quickly flow into the lifted gap.
  • sealing pressing part 33 also presses sealing surface 4 rapidly, seals the air passage between air intake assembly 5 and outer pipe part 13, prevents water from entering The component 5 sprays out, and the pressure water at this time will flood into the water outlet 2 until the solenoid valve 61 opens the water stop pad 63 to output water from the water outlet 64 to the bedpan for flushing.
  • the elastic pressing piece 32 will be pressed against the edge of the inner pipe portion 12, and the sealing pressing piece 33 will drop away from the sealing surface 4, so that the external air can enter the outer pipe portion 13 through the air intake concave surface 42 in the middle of the sealing surface 4, that is, External air can enter the water outlet 2 through the air intake assembly 5 and the air intake concave surface 42 to cut off the siphon, so that the water outlet 2 loses negative pressure and cannot suck the dirty water in the water outlet 64 that communicates with the toilet water, and because the inner pipe part 12 Due to the high ceiling design, often the water drawn by the siphon negative pressure has not yet reached the edge of the inner pipe part 12, and the elastic pressure piece 32 has fallen to seal the inner pipe part 12, so as to prevent the toilet water from being sucked back when the siphon negative pressure is generated.
  • the phenomenon of the inner pipe part 12 occurs; when the siphon is blocked, the suction water may be discharged through the sealing surface 4 through the air intake assembly 5 due to the flow inertia, and may immediately lose the negative pressure and directly flow back into the toilet through the water outlet 64.
  • the difference between this embodiment and Embodiment 1 is that the inner tube part 12 is detachably connected to the connecting part 11, so that the inner tube part 12 and the connecting part 11 can be disassembled separately when they are damaged separately. replacement without replacing the entire assembly.
  • a water tank includes the above-mentioned dual water channel flush valve for preventing siphon backflow, the water tank includes a water inlet channel, and the water inlet channel communicates with the water inlet end 1 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
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Abstract

一种防止虹吸倒流的双水路冲水阀，包括：具有进水端（1）和出水端（2）的阀体，进水端（1）包括外管部（13），以及设置在外管部（13）内部的内管部（12），内管部（12）的管沿高于出水端（2）的上沿，内管部（12）上设置有防虹吸阀（3），防虹吸阀（3）的上方设置有进气组件（5），防虹吸阀（3）在进水端（1）进水时封闭进气组件（5）的底部形成密封通水流道，并在进水端（1）产生负压时封闭进水端（1）的管沿，并打开进气组件（5）隔断虹吸。通过提高内管部（12）的高度，让出水端（2）残留水无法越过内管部（12）流入进水端（1），又能使防虹吸阀（3）在出水端（2）进水口上沿上方位置通气阻断虹吸，杜绝马桶脏水通过出水端（2）虹吸倒流回进水端（1）的现象发生。

Description

一种防止虹吸倒流的双水路冲水阀 技术领域
本发明涉及一种冲水阀，特别是一种防止虹吸倒流的双水路冲水阀。
 背景技术
现有的一种冲水阀包括进水管路与抽水装置、出水管路，进水管路与公共水道相接，出水管路与便盆相接，在进水水位高于出水管路的出水端，且抽水装置停止抽水时，出水管路会产生虹吸现象，为了破坏虹吸现象，往往会在出水管路增设单向阀，既能使进水管路正常出水，也能保证出水管路不返流至进水管路污染水源。
现有的冲水阀的单向阀为弹簧单向阀，其与进气端为常闭状态，即只有在进水管路骤然停水时，产生的负压才会将弹簧往进水管路的方向吸，弹簧单向阀才能将进水管路封闭住，避免出水管路的水回流，但由于在停水时，进水管路不是骤然产生负压，而是缓缓产生负压，故在某一真空节点时，弹簧无法被及时吸落，致使出水管路的水会返流至进水管路，进而使马桶水污染整个公共水道，影响用水卫生。
且现有的冲水阀中，进水端端口的高度与出水端的端口高度差较小，即使在无水压的情况下，出水端的残留水容易回流至进水端端口。
 技术问题
本发明提供了一种防止虹吸倒流的双水路冲水阀，可以有效解决上述冲水阀的残留水容易回流至进水端造成公共水道污染的问题。
 技术解决方案
本发明是这样实现的：一种防止虹吸倒流的双水路冲水阀，包括：具有进水端和出水端的阀体，所述进水端包括一外管部，以及设置在所述外管部内部的内管部，所述内管部的管沿高于所述出水端的上沿，所述内管部上设置有防虹吸阀，所述防虹吸阀的上方设置有进气组件，所述防虹吸阀在所述进水端进水时封闭所述进气组件的底部，并在所述进水端产生负压时封闭所述进水端的管沿，所述防虹吸阀包括：弹性压件，所述弹性压件受自重或者在所述进水端产生负压时紧贴在所述进水端的管沿上，以及设置于所述弹性压件上方的封闭压件，所述封闭压件受所述进水端的水流压力抵压在所述进气组件上。
作为进一步改进的，所述防虹吸阀还包括一贯穿弹性压件、封闭压件的阀杆，设置在所述阀杆底部的分流头，所述阀杆沿所述进气组件的轴向方向往复运动。
作为进一步改进的，所述分流头为一锥头朝向所述进水端进水方向的圆锥形结构。
作为进一步改进的，所述进水端还包括一与外部水源相接的连接部，所述连接部与所述内管部的底部相连接。
作为进一步改进的，所述内管部与所述连接部一体成型，或者，所述内管部与所述连接部可拆卸连接。
作为进一步改进的，所述防虹吸阀与进气组件之间还设置有一密封面，所述密封面包括一紧贴进气组件的密封垫，以及设置在所述密封垫内，且凹向所述进气组件一侧的进气凹面。
作为进一步改进的，所述进气组件包括一与所述外管部相接的进气盖，设置在所述进气盖内的型腔，设置在所述进气盖一侧的接头，所述型腔的内侧导向连接有阀杆，所述进气盖上设置有若干个进气口。
作为进一步改进的，还包括出水组件，所述出水组件包括一与所述出水端相接的出水件，设置在所述出水件上的出水上盖，连接在所述出水上盖与出水件之间的止水垫，设置在所述出水上盖上的电磁阀，所述止水垫用于开启或封闭所述出水端与出水件之间的通道。
作为进一步改进的，所述内管部外周面与所述出水端齐平的位置设置有第一导流片，所述出水件与所述出水端齐平的位置设置有第二导流片。
一种水箱，包含上述的一种防止虹吸倒流的双水路冲水阀，所述水箱包括一进水通道，所述进水通道与所述进水端相通。
 有益效果
本发明的有益效果是：本发明通过提高内管部的高度，使内管部的高度高于出水端上沿高度，让出水端即使出现返流时，来不及越过内管部的高度进而回流到进水端，杜绝出水端水流返流至进水端的现象发生，将进水端与出水端分隔开来，使出水端残留水无法进入进水端污染水源。
本发明在无进水时，其中的防虹吸阀通过自重封闭住进水端，使防虹吸阀与进水端为常闭状态，防虹吸阀与进气组件为常开状态，一旦进水端产生负压，防虹吸阀与进水端之间会在原有的封闭状态下吸合的更紧，并且若出水端发生虹吸水流惯性倒流现象，也不会流入进水端，而是会经常开的通道通过进气组件排出，灵敏度更高的同时，封闭性更好。
本发明通过提高内管部，缩短了防虹吸阀与进气组件之间的行程，使防虹吸阀在受到进水端的压力水时，能够迅速封闭住进气组件的进气口，防止水从进气口渗出，造成浪费；而在进水端突然失水，产生负压时，又能够迅速封闭住内管部，杜绝出水端的水返流入进水端的公共水道。
本发明选用弹性的弹性压件，在内管部产生负压时，能够紧贴住内管部的管沿，采用下凹的形式封闭住管沿，密封性高，而在内管部出水时，即弹性压件迅速发生变形，且迅速将整个防虹吸阀往上弹，灵敏度高，防溢效果好。
本发明选用硬性的封闭压件，配合柔性的密封面，当防虹吸阀受压时，硬性的封闭压件会抵压在柔性的密封面上，提高二者的结合度，进而提高进气组件与防虹吸阀的配合度。
 附图说明
为了更清楚地说明本发明实施方式的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1是本发明实施例提供的一种防止虹吸倒流的双水路冲水阀的剖视图。
图2是本发明实施例提供的一种防止虹吸倒流的双水路冲水阀的结构示意图。
图3是本发明实施例1提供的一种防止虹吸倒流的双水路冲水阀的爆炸图。
图4是本发明实施例1提供的一种防止虹吸倒流的双水路冲水阀的第一工作状态示意图。
图5是本发明实施例1提供的一种防止虹吸倒流的双水路冲水阀的第二工作状态示意图。
图6是本发明实施例1提供的一种进气组件的结构示意图。
图7是本发明实施例1提供的一种第一导流片的结构示意图。
图8是本发明实施例1提供的一种第二导流片的结构示意图。
图9是本发明实施例2提供的一种防止虹吸倒流的双水路冲水阀的结构示意图。
 本发明的实施方式
为使本发明实施方式的目的、技术方案和优点更加清楚，下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式是本发明一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。因此，以下对在附图中提供的本发明的实施方式的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施方式。基于本发明中的实施方式，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。
在本发明的描述中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
参照图1-9所示，一种防止虹吸倒流的双水路冲水阀，包括：具有进水端1和出水端2的阀体，所述进水端1包括一外管部13，以及设置在所述外管部13内部的内管部12，所述内管部12的管沿高于所述出水端2的上沿，所述内管部12上设置有防虹吸阀3，所述防虹吸阀3的上方设置有进气组件5，所述防虹吸阀3在所述进水端1进水时封闭所述进气组件5的底部，并在所述进水端1产生负压时封闭所述进水端1的管沿，进一步包括出水组件6。
其中，由于内管部12的管沿高于所述出水端2的上沿，可以避免残留于出水端2中的水流入进水端1，并且，即使出水端2出现返流现象，也需要返流到一定的流量和高度才可能对内管部12上的防虹吸阀3造成返流，并且，由于防虹吸阀3的自重效果，能够保证进水端1一旦失水产生负压，防虹吸阀3能够迅速将进水端1封闭住，内管部12挑高的设计配合能够随着自重和压力水动作的防虹吸阀3，双管齐下，杜绝出水端2的返流流入进水端1，挑高的内管部12为防虹吸阀3的运动提供充足的缓冲时间。
具体地，所述防虹吸阀3包括：弹性压件32，所述弹性压件32受自重或者在所述进水端1产生负压时紧贴在所述进水端1的管沿上，以及设置于所述弹性压件32上方的封闭压件33，所述封闭压件33受所述进水端1的水流压力抵压在所述进气组件5上。
为了提高所述封闭压件33与进气组件5之间的封闭效果，所述防虹吸阀3与进气组件5之间还设置有一密封面4，所述密封面4包括一紧贴进气组件5的密封垫41，以及设置在所述密封垫41内，且凹向所述进气组件5一侧的进气凹面42。
其中，软性的弹性压件32与硬性的内管部12的管沿配合，而硬性的封闭压件33与软性的密封面4配合，能够极大程度的保证弹性压件32对进水端1的密封效果，以及封闭压件33对进气组件5底部密封面4的进气凹面42的封堵密封效果。
所述防虹吸阀3还包括一贯穿弹性压件32、封闭压件33的阀杆34，设置在所述阀杆34底部的分流头31，所述阀杆34沿所述进气组件5的轴向方向往复运动。
具体地，所述分流头31为一锥头朝向所述进水端1进水方向的圆锥形结构，能够对自进水端1涌入的压力水进行分流，让压力水沿着两端分散流出，防止在分流头31处形成紊流或涡流。
进一步地，所述进水端1还包括一与外部水源相接的连接部11，所述连接部11与所述内管部12的底部相连接。
进一步地，所述内管部12与所述连接部11一体成型。
进一步地，所述进气组件5包括一与所述外管部13相接的进气盖51，设置在所述进气盖51内的型腔52，设置在所述进气盖51一侧的接头53，所述型腔52的内侧导向连接有阀杆34，所述进气盖51上设置有若干个进气口54，进气组件5通过进气口54与外部大气相通，能够破坏冲水阀内的虹吸现象。
其中，型腔52能够限制阀杆34的运动路径，保证阀杆34始终沿着垂直方向运动，而接头53能够将可能吸入的抽吸水及时的导出，防止堆积在进气盖51中阻碍进气。
进一步地，所述出水组件6包括一与所述出水端2相接的出水件64，设置在所述出水件64上的出水上盖62，连接在所述出水上盖62与出水件64之间的止水垫63，设置在所述出水上盖62上的电磁阀61，所述止水垫63用于开启或封闭所述出水端2与出水件64之间的通道。
进一步地，所述内管部12外周面与所述出水端2齐平的位置设置有第一导流片121，所述出水件64与所述出水端2齐平的位置设置有第二导流片641。
其中，第一导流片121能够对从自内管部12流入外管部13的水流进行导向、分流，而第二导流片641能够对自外管部13流入出水件64的水流进行导向、分流，能够减少此处的紊流、乱流现象，同时，降低水流在此时的冲击、滞留，减少流阻使水流能够快速通过的同时，降低水流噪音。
本发明的具体实施过程如下：当进水端1正常供水时：此时压力水会通过连接部11涌入，再流入内管部12，将分流头31顶起，使分流头31推动阀杆34往上运动，而套设在阀杆34上的弹性压件32与封闭压件33也会随之动作，弹性压件32被顶起时，压力水会迅速从被顶起的缝隙中流入外管部13，同时，在弹性压件32被顶起的时候，封闭压件33也迅速压紧密封面4，封闭进气组件5与外管部13之间的空气通道，避免水从进气组件5喷出，而此时的压力水会充斥入出水端2，直至电磁阀61打开止水垫63将水从出水件64输出至便盆进行冲刷。
当进水端1突然失去供水，产生负压时：当失去供水时，防虹吸阀3瞬间失去水压的支撑，由于其本身的重力及其受到的负压吸引力，其会迅速下降，下降时弹性压件32会压紧在内管部12的管沿上，封闭压件33下降脱离密封面4，使外部空气可通过密封面4中部的进气凹面42进入外管部13中，即外部空气可通过进气组件5、进气凹面42进入出水端2以隔断虹吸，使出水端2失去负压而无法抽吸出水件64内与马桶水相通的脏水，且由于内管部12的挑高设计，往往虹吸负压抽入的水还未到达内管部12的管沿，弹性压件32已经下落封闭住内管部12，杜绝虹吸负压产生时马桶水被抽吸倒流回内管部12的现象发生；阻断虹吸时，抽吸水有可能由于流动惯性通过密封面4经进气组件5排出，也有可能即时失去负压而通过出水件64直接回流到马桶内。
实施例2。
参照图9，本实施例与实施例1的不同之处在于：所述内管部12与所述连接部11可拆卸连接，使内管部12与连接部11在单独损坏时均可单独拆卸更换，无需更换整个组件。
实施例3。
一种水箱，包含上述的一种防止虹吸倒流的双水路冲水阀，所述水箱包括一进水通道，所述进水通道与所述进水端1相通。
以上所述仅为本发明的优选实施方式而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (11)

  1. 一种防止虹吸倒流的双水路冲水阀，其特征在于，包括：具有进水端（1）和出水端（2）的阀体，所述进水端（1）包括一外管部（13），以及设置在所述外管部（13）内部的内管部（12），所述内管部（12）的管沿高于所述出水端（2）的上沿，所述内管部（12）上设置有防虹吸阀（3），所述防虹吸阀（3）的上方设置有进气组件（5），所述防虹吸阀（3）在所述进水端（1）进水时封闭所述进气组件（5）的底部，并在所述进水端（1）产生负压时封闭所述进水端（1）的管沿，所述防虹吸阀（3）包括：弹性压件（32），所述弹性压件（32）受自重或者在所述进水端（1）产生负压时紧贴在所述进水端（1）的管沿上，以及设置于所述弹性压件（32）上方的封闭压件（33），所述封闭压件（33）受所述进水端（1）的水流压力抵压在所述进气组件（5）上。
  2. 根据权利要求1所述的一种防止虹吸倒流的双水路冲水阀，其特征在于，所述防虹吸阀（3）还包括一贯穿弹性压件（32）、封闭压件（33）的阀杆（34），设置在所述阀杆（34）底部的分流头（31），所述阀杆（34）沿所述进气组件（5）的轴向方向往复运动。
  3. 根据权利要求2所述的一种防止虹吸倒流的双水路冲水阀，其特征在于，所述分流头（31）为一锥头朝向所述进水端（1）进水方向的圆锥形结构。
  4. 根据权利要求2所述的一种防止虹吸倒流的双水路冲水阀，其特征在于，所述进气组件（5）包括一与所述外管部（13）相接的进气盖（51），设置在所述进气盖（51）内的型腔（52），设置在所述进气盖（51）一侧的接头（53），所述型腔（52）的内侧导向连接有阀杆（34），所述进气盖（51）上设置有若干个进气口（54）。
  5. 根据权利要求1所述的一种防止虹吸倒流的双水路冲水阀，其特征在于，所述进水端（1）还包括一与外部水源相接的连接部（11），所述连接部（11）与所述内管部（12）的底部相连接。
  6. 根据权利要求5所述的一种防止虹吸倒流的双水路冲水阀，其特征在于，所述内管部（12）与所述连接部（11）一体成型。
  7. 据权利要求5所述的一种防止虹吸倒流的双水路冲水阀，其特征在于，所述内管部（12）与所述连接部（11）可拆卸连接。
  8. 根据权利要求1所述的一种防止虹吸倒流的双水路冲水阀，其特征在于，所述防虹吸阀（3）与进气组件（5）之间还设置有一密封面（4），所述密封面（4）包括一紧贴进气组件（5）的密封垫（41），以及设置在所述密封垫（41）内，且凹向所述进气组件（5）一侧的进气凹面（42）。
  9. 根据权利要求1所述的一种防止虹吸倒流的双水路冲水阀，其特征在于，进一步包括出水组件（6），所述出水组件（6）包括一与所述出水端（2）相接的出水件（64），设置在所述出水件（64）上的出水上盖（62），连接在所述出水上盖（62）与出水件（64）之间的止水垫（63），设置在所述出水上盖（62）上的电磁阀（61），所述止水垫（63）用于开启或封闭所述出水端（2）与出水件（64）之间的通道。
  10. 根据权利要求9所述的一种防止虹吸倒流的双水路冲水阀，其特征在于，所述内管部（12）外周面与所述出水端（2）齐平的位置设置有第一导流片（121），所述出水件（64）与所述出水端（2）齐平的位置设置有第二导流片（641）。
  11. 一种水箱，包含如权利要求1所述的一种防止虹吸倒流的双水路冲水阀，其特征在于，所述水箱包括一进水通道，所述进水通道与所述进水端（1）相通。
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