WO2011140958A1 - 用于水路领域中的吸气止逆装置 - Google Patents

用于水路领域中的吸气止逆装置 Download PDF

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Publication number
WO2011140958A1
WO2011140958A1 PCT/CN2011/073807 CN2011073807W WO2011140958A1 WO 2011140958 A1 WO2011140958 A1 WO 2011140958A1 CN 2011073807 W CN2011073807 W CN 2011073807W WO 2011140958 A1 WO2011140958 A1 WO 2011140958A1
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WO
WIPO (PCT)
Prior art keywords
hole
waterway
air inlet
field
sealing sleeve
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PCT/CN2011/073807
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English (en)
French (fr)
Inventor
周华松
江力
陈健民
曹斌
Original Assignee
厦门松霖科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN2010201856933U external-priority patent/CN201723797U/zh
Priority claimed from CN201010167729XA external-priority patent/CN101956414B/zh
Application filed by 厦门松霖科技有限公司 filed Critical 厦门松霖科技有限公司
Priority to EP11780179.5A priority Critical patent/EP2570558B1/en
Publication of WO2011140958A1 publication Critical patent/WO2011140958A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/084—Jet regulators with aerating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0425—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
    • 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
    • F16K15/14—Check valves with flexible valve members
    • F16K15/141—Check valves with flexible valve members the closure elements not being fixed to the valve body
    • 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
    • F16K15/14—Check valves with flexible valve members
    • F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/652—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented
    • B05B15/654—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented using universal joints

Definitions

  • the invention relates to an inhalation backstop for use in the field of waterways.
  • a suction mechanism such as a bubbler in the waterway field
  • the existing air suction mechanism only has the function of air intake, and does not have the function of water shutoff or the function of inhaling back. Therefore, there are the following disadvantages: in the multifunctional shower, when the shower water function is non-inhaled When the function is switched (such as when the non-foaming water function is used), the water pipe resistance becomes large, and the water flow reverses, and the water flow leaks out through the air suction hole, thereby causing disadvantages such as inconvenient use, waste of water resources, and reduction of water pressure.
  • the present invention provides an inspiratory anti-reverse device for use in the field of waterways, which overcomes the deficiencies of the inspiratory mechanism in the field of waterways in the prior art that the water flow will leak outward through the suction hole under the reverse flow of the water flow.
  • An inhalation check device for use in the field of waterways which includes:
  • a main body having a water passage and at least one air inlet hole;
  • the water passage has a water inlet hole and a sudden cavity connecting the water inlet hole, and the cross-sectional area of the abrupt cavity is larger than the cross-sectional area of the water inlet hole;
  • the air inlet has an air inlet and an air outlet, the air inlet is located outside the main body, and the air outlet is located in the abrupt chamber;
  • An elastic sealing sleeve attached to the main body and adapted to the air inlet hole of the main body;
  • the water flow of the waterway flows downstream, and the abrupt chamber generates a negative pressure and adsorbs the elastic sealing sleeve to make the air inlet hole conduct to be able to inhale;
  • the water flow of the waterway flows backward, and the water pressure of the waterway acts on the inner side of the elastic sealing sleeve to seal the air inlet hole by the elastic sealing sleeve.
  • the elastic sealing sleeve is a cup.
  • the subject includes:
  • a seat having a stepped hole and a first through hole therein, the stepped hole having a large hole and a small hole, the first through hole penetrating the inside and outside of the large hole;
  • An inner frame, the waterway is disposed on the inner frame, and the second through hole is opened through the inner and outer portions of the abrupt cavity of the waterway;
  • the inner frame is assembled in a large hole of the support, the abrupt cavity is connected to the small hole, and the elastic sealing sleeve is sleeved outside the inner frame and is interposed between the first through hole and the second through hole.
  • the cross-sectional area of the abrupt cavity is equal to the cross-sectional area of the small hole.
  • the axis of the stepped hole coincides with the axis of the waterway.
  • the inner port of the second through hole is disposed at the root of the abrupt cavity.
  • the outer side of the inner frame includes a step surface having a large side surface and a small side surface
  • the large side seal is fixed to the large hole, and an attachment gap is left between the small side surface and the inner side surface of the large hole, and the attachment gap is between the first through hole and the second through hole, the sealing The suit is placed within the attachment gap.
  • the elastic sealing sleeve comprises a connecting head and a horn sleeve extending downwardly from the connecting head, the connecting head is fixed to the small side of the inner frame, and the horn sleeve corresponds to Between the first through hole and the second through hole.
  • the support is a ball head including a ball head and a connecting portion, and the first through hole is symmetrically disposed on the ball head.
  • the water flow is downstream, the negative pressure is generated in the abrupt chamber, and the elastic sealing sleeve is adsorbed to make the air inlet hole conduct, so as to realize the inhalation and the water flow backward, the water pressure of the water channel acts on the inner side of the elastic sealing sleeve to make the elasticity
  • the sealing sleeve seals the air inlet hole to enable the suction inversion, thereby overcoming the deficiencies of the prior art, and avoiding the disadvantage that the water leakage through the air suction hole when the water flow backwards;
  • the elastic sealing sleeve is a cup, sealing performance, and the plugging performance is strong when the water flows backward;
  • the main body comprises a support and an inner frame, and the elastic sealing sleeve is sleeved outside the inner frame and is interposed between the first through hole and the second through hole, so that the assembly is convenient, and the action accuracy of the sealing sleeve is high when adsorbed or pressed. ;
  • the inner port of the second through hole is located at the root of the abrupt cavity, and when the negative pressure is generated, the adsorption is strong to ensure that the suction hole is turned on;
  • the mounting gap is between the first through hole and the second through hole, and the sealing set is disposed in the connecting gap, and has an active space, and the action accuracy is high when the sealing sleeve is adsorbed or pressed;
  • the horn sleeve corresponds between the first through hole and the second through hole, and the action accuracy is high when the sealing sleeve is adsorbed or pressed.
  • the invention has good compatibility and can be used on components of sanitary equipment such as ball heads and plugs.
  • FIG. 1 is a perspective exploded perspective view of the first embodiment.
  • FIG. 2 is a perspective exploded view of the first embodiment.
  • FIG. 3 is a schematic cross-sectional view of the inner frame of the first embodiment.
  • FIG. 4 is a schematic cross-sectional view showing the elastic sealing sleeve of the first embodiment.
  • Fig. 5 is a schematic cross-sectional view showing the first embodiment, in which the water passage of the device is in a downstream state.
  • Fig. 6 is a schematic cross-sectional view showing the first embodiment, in which the water passage of the device is in a reverse flow state.
  • Figure 7 is a perspective exploded perspective view of the second embodiment.
  • FIG. 8 is a perspective exploded view of the second embodiment.
  • Figure 9 is a schematic cross-sectional view of the second embodiment, in which the water passage of the device is in a downstream state.
  • Figure 10 is a schematic cross-sectional view of the second embodiment, in which the water passage of the device is in a reverse flow state.
  • Embodiment 1 Please refer to FIG. 1 to FIG. 6 for an inspiratory anti-back device in the field of waterways, which comprises a main body and an elastic sealing sleeve 100.
  • the body includes a seat 200 and an inner frame 300.
  • a stepped hole and two first through holes 220 are defined in the support base 200.
  • the stepped hole has a large hole 211 and a small hole 212, and the large hole 211 and the small hole 212 are disposed above and below.
  • the stepped hole is a rotating face.
  • the upper port of the large hole 211 is provided with an internal thread.
  • the two first through holes 220 are symmetrically disposed.
  • the first through hole 220 is disposed inside and outside the large hole 211.
  • the first through hole 220 is disposed obliquely.
  • the outer port of the first through hole 220 is located at an outer side of the support 200.
  • the first through hole 220 is The inner port is located on the inner side of the large hole 211.
  • the outer side surface of the inner frame 300 is a rotary step surface having a large side surface 310 and a small side surface 320, and the large side surface 310 is adapted to the inner side surface of the large hole 211 of the support base 200, the large side surface A first annular groove 311 is defined in the 310, and a second annular groove 321 is defined in the small side surface 320.
  • a water passage and a second through hole 330 are defined in the inner frame 300.
  • the water passage has a water inlet hole 340 and a mutation chamber 350 that is connected to the water inlet hole 340 and located below the water inlet hole 340.
  • the cross-sectional area of the mutation chamber 350 is larger than the cross-sectional area of the water inlet hole 340.
  • the cross-sectional area of the cavity 350 is equal to the cross-sectional area of the small hole 212.
  • the second through hole 330 extends through the inner and outer sides of the abrupt cavity 350, and the outer port of the second through hole 330 is disposed at the small side 320, and the inner port of the second through hole 330 is disposed at the root of the abrupt cavity 350. .
  • the inner frame 300 is mounted on the stepped hole of the support 200.
  • the large side surface 310 is sealingly fixed to the large hole 211.
  • the first annular groove 311 is sleeved with the O-ring 312, and the sealing performance is enhanced by the O-ring 312.
  • an attachment gap 360 is left between the small side surface 320 and the inner side surface of the large hole 211, and the attachment gap 360 is between the first through hole 220 and the second through hole 330; the axis of the stepped hole
  • the axis of the waterway coincides with the abrupt cavity 350 that opens the aperture 212.
  • the large holes and the small holes are further provided with a step, and the steps are adapted to the small side for easy assembly and easy positioning.
  • the first through hole 220, the attachment gap 360 and the second through hole 330 constitute an air inlet hole, and the air inlet port is an outer port of the first through hole 220, and the air outlet port is The inner port of the two through holes 330.
  • the elastic sealing sleeve 100 includes a connecting head 110 and a horn sleeve 120 extending downwardly and outwardly from the connecting head 110.
  • the horn sleeve 120 and the connecting head 110 form a chamfer, and the center of the chamfer is inside
  • the elastic sealing sleeve 100 is adsorbed and sealed at the outer port of the second through hole 330 when the sealing is prevented from being adsorbed.
  • the gland 100 is, for example, a cup.
  • the connector 110 is fixedly sleeved between the second annular groove 321 of the small side 320 of the inner frame 300 , and the horn 120 is located between the inner port of the first through hole 220 and the outer port of the second through hole 330 . .
  • the water flow of the waterway flows downstream, and the abrupt cavity 350 generates a negative pressure and adsorbs the horn 120 of the elastic sealing sleeve 100 to leave the elastic sealing sleeve 120 away from the inner port of the first through hole 220, leaving a gap. That is, the air intake hole is in an on state, and can inhale from the outside.
  • the water flow of the waterway is reversed, and the water pressure of the waterway acts on the inner side of the horn 120 of the elastic sealing sleeve 100 so that the elastic sealing sleeve 120 acts on the inner port of the first through hole 220 to seal the air inlet hole.
  • the holder 200 is a ball head and includes a ball head 230 and a connecting portion 240.
  • the first through hole 210 is symmetrically disposed on the ball head.
  • Example 2 Referring to FIG. 7 to FIG. 10 , the second embodiment of the present invention is different from the preferred embodiment in that the outer surface of the upper end of the support 200 is provided with an external thread; the first through hole 220 is horizontally horizontal. Settings.
  • the holder 200 is a plug.
  • the invention is used for the suction inversion device in the waterway field, wherein the water flow of the water path is downstream, the abrupt chamber generates a negative pressure and adsorbs the elastic sealing sleeve to make the air inlet hole conduct to be able to inhale.
  • the water pressure of the waterway acts on the inner side of the elastic sealing sleeve to seal the air inlet hole by the elastic sealing sleeve. It has good compatibility and can be used on parts of sanitary equipment such as ball heads and stoppers.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Check Valves (AREA)
  • Taps Or Cocks (AREA)

Description

用于水路领域中的吸气止逆装置 技术领域
本发明涉及一种用于水路领域中的吸气止逆装置。
背景技术
现有的水路领域中，经常会使用到吸气机构，例如水路领域中的起泡器。现有的吸气机构都只具有进气之功能，不具有堵水功能或者说吸气止逆功能，因此存在有如下不足：在多功能花洒中，当花洒出水功能向非吸气状态功能切换时（如处于非起泡出水功能时），水路管阻变大，水流产生倒流，水流会通过吸气孔向外漏出，进而造成使用不便、浪费水资源、降低水压等之缺点。
发明内容
本发明提供了用于水路领域中的吸气止逆装置，其克服了背景技术中水路领域中的吸气机构所存在的在水路水流倒流作用下水流会通过吸气孔向外漏出的不足。
本发明解决其技术问题的所采用的技术方案之一是：
用于水路领域中的吸气止逆装置，它包括：
一主体，它内具有一水路和至少一进气孔；所述水路具有一进水孔和一接通进水孔的突变腔，所述突变腔的截面面积大于进水孔的截面面积；所述进气孔具有一进气口和一出气口，所述进气口位于主体之外，所述出气口位于突变腔；及
一弹性密封套，它装接在主体之内，并适配主体的进气孔；
其中：
水路之水流顺流，则所述突变腔产生负压并吸附弹性密封套以使进气孔导通，以能吸气；
水路之水流倒流，则所述水路水压作用于弹性密封套内侧面以使弹性密封套密封进气孔。
一较佳实施例之中：所述弹性密封套为皮碗。
一较佳实施例之中：所述主体包括：
一支座，它内开设有一阶梯孔和第一贯穿孔，所述阶梯孔具有一大孔和一小孔，所述第一贯穿孔贯穿大孔之内外；及
一内架，所述水路设在内架上，它开设有第二贯穿孔，所述第二贯穿孔贯穿水路的突变腔的内外；
所述内架装配在支座的大孔之内，所述突变腔接通小孔，所述弹性密封套套接在内架之外，并介于第一贯穿孔和第二贯穿孔之间。
一较佳实施例之中：所述突变腔的截面面积和小孔的截面面积相等。
一较佳实施例之中：所述阶梯孔的轴线和水路的轴线重合。
一较佳实施例之中：所述第二贯穿孔的内端口设在突变腔的根处。
一较佳实施例之中：
所述内架之外侧面包括一阶梯面，所述阶梯面具有一大侧面和一小侧面；
所述大侧面密封固接在大孔，所述小侧面和大孔内侧面之间留有装接间隙，所述装接间隙介于第一贯穿孔和第二贯穿孔之间，所述密封套装设在装接间隙之内。
一较佳实施例之中：所述弹性密封套包括一连接头和一由连接头向下向外延伸的喇叭套，所述连接头固接在内架的小侧面，所述喇叭套对应在第一贯穿孔和第二贯穿孔之间。
一较佳实施例之中：所述所述支座为一球头，包括一球头部和一连接部，第一贯穿孔对称设置在球头部。
本技术方案与背景技术相比，它具有如下优点：
1、水路水流顺流，则突变腔产生负压并吸附弹性密封套以使进气孔导通，以能够实现吸气，水路水流倒流，则水路水压作用于弹性密封套内侧面以使弹性密封套密封进气孔，以能够实现吸气止逆，因此克服了背景技术所存在的不足，避免了在水流倒流时会通过吸气孔向外漏水的缺点；
2、弹性密封套为皮碗，密封性能，水流倒流时堵漏性能强；
3、主体包括支座和内架，弹性密封套套接在内架之外并介于第一贯穿孔和第二贯穿孔之间，因此便于装配，密封套受吸附或受压时动作准确性高；
4、第二贯穿孔的内端口设在突变腔的根处，产生负压时，吸附性较强保证吸气孔导通；
5、装接间隙介于第一贯穿孔和第二贯穿孔之间，密封套装设在装接间隙之内，具有活动空间，密封套受吸附或受压时动作准确性高；
6、喇叭套对应在第一贯穿孔和第二贯穿孔之间，密封套受吸附或受压时动作准确性高。
本发明具有良好的通配性，可以用在球头、塞子等卫浴设备的部件上。
附图说明
下面结合附图和实施例对本发明作进一步说明。
图1为实施例一的立体局部分解示意图。
图2为实施例一的立体分解示意图。
图3为实施例一的内架的中剖示意图。
图4为实施例一的弹性密封套的中剖示意图。
图5为实施例一的中剖示意图，此时装置水路处于顺流状态。
图6为实施例一的中剖示意图，此时装置水路处于倒流状态。
图7为实施例二的立体局部分解示意图。
图8为实施例二的立体分解示意图。
图9为实施例二的中剖示意图，此时装置水路处于顺流状态。
图10为实施例二的中剖示意图，此时装置水路处于倒流状态。
具体实施方式
实施例一。请查阅图1至图6，用于水路领域中的吸气止逆装置，它包括一主体和一弹性密封套100。
所述主体包括一支座200和一内架300。
所述支座200内开设有一阶梯孔和二第一贯穿孔220。
所述阶梯孔具有一大孔211和一小孔212，所述大孔211和小孔212上下设置。本实施例之中，所述阶梯孔为回转面孔。所述大孔211之上端口设置有内螺纹。
所述二第一贯穿孔220对称设置。所述第一贯穿孔220贯穿大孔211之内外，所述第一贯穿孔220轴线倾斜设置，所述第一贯穿孔220的外端口位于支座200的外侧面，所述第一贯穿孔220的内端口位于大孔211的内侧面。
所述内架300外侧面为一回转阶梯面，所述阶梯面具有一大侧面310和一小侧面320，所述大侧面310适配支座200的大孔211的内侧面，所述大侧面310处开设有一第一环形槽311，所述小侧面320处开设有一第二环形槽321。
所述内架300之内开设有一水路和一第二贯穿孔330。所述水路具有一进水孔340和一接通进水孔340并位于进水孔340之下的突变腔350，所述突变腔350的截面面积大于进水孔340的截面面积，所述突变腔350的截面面积等于小孔212的截面面积。所述第二贯穿孔330贯穿突变腔350的内外，而且，所述第二贯穿孔330的外端口设在小侧面320，所述第二贯穿孔330的内端口设在突变腔350的根处。
所述内架300装配在支座200的阶梯孔，所述大侧面310密封固接在大孔211，所述第一环形槽311处套接O-ring312，利用O-ring312增强密封性能。其中：所述小侧面320和大孔211内侧面之间留有装接间隙360，所述装接间隙360介于第一贯穿孔220和第二贯穿孔330之间；所述阶梯孔的轴线和水路的轴线重合，所述突变腔350接通小孔212。最好，所述大孔和小孔处还设置有一台阶，所述台阶适配小侧面，便于装配，便于定位。
本实施例之中，所述第一贯穿孔220、装接间隙360和第二贯穿孔330组成进气孔，所述进气口为第一贯穿孔220的外端口，所述出气口为第二贯穿孔330的内端口。
所述弹性密封套100包括一连接头110和一由连接头110向下向外延伸的喇叭套120，所述喇叭套120和连接头110之间形成倒角，所述倒角的圆心在内在下（避免密封吸附时所述弹性密封套100吸附密封在第二贯穿孔330的外端口）。所述密封套100例如为皮碗。所述连接头110固定套接在内架300的小侧面320的第二环形槽321，所述喇叭套120对应位于在第一贯穿孔220的内端口和第二贯穿孔330的外端口之间。
请查阅图5，水路之水流顺流，则所述突变腔350产生负压并吸附弹性密封套100的喇叭套120以使弹性密封套120离开第一贯穿孔220的内端口，留有间隙，也即是进气孔处于导通状态，能从外界吸气。
请查阅图6，水路之水流倒流，则所述水路水压作用于弹性密封套100的喇叭套120内侧面以使弹性密封套120作用在第一贯穿孔220的内端口，密封进气孔。
所述支座200为一球头，包括一球头部230和一连接部240，第一贯穿孔210对称设置在球头部。
实施例二。请查阅图7至图10，本较佳实施例二与较佳实施例一不同之处在于：所述支座200之上端之外回转面设置有外螺纹；所述第一贯穿孔220轴线水平设置。所述支座200为一塞子。
以上所述，仅为本发明较佳实施例而已，故不能依此限定本发明实施的范围，即依本发明专利范围及说明书内容所作的等效变化与修饰，皆应仍属本发明涵盖的范围内。
工业实用性
本发明用于水路领域中的吸气止逆装置，其水路之水流顺流，则突变腔产生负压并吸附弹性密封套以使进气孔导通，以能吸气。水路之水流倒流，则水路水压作用于弹性密封套内侧面以使弹性密封套密封进气孔。具有良好的通配性，可以用在球头、塞子等卫浴设备的部件上。

Claims (9)

  1. 用于水路领域中的吸气止逆装置，其特征在于：它包括：
    一主体，它内具有一水路和至少一进气孔；所述水路具有一进水孔和一接通进水孔的突变腔，所述突变腔的截面面积大于进水孔的截面面积；所述进气孔具有一进气口和一出气口，所述进气口位于主体之外，所述出气口位于突变腔；及
    一弹性密封套，它装接在主体之内，并适配主体的进气孔；
    其中：
    水路之水流顺流，则所述突变腔产生负压并吸附弹性密封套以使进气孔导通，以能吸气；
    水路之水流倒流，则所述水路水压作用于弹性密封套内侧面以使弹性密封套密封进气孔。
  2. 根据权利要求1所述的用于水路领域中的吸气止逆装置，其特征在于：所述弹性密封套为皮碗。
  3. 根据权利要求1或2所述的用于水路领域中的吸气止逆装置，其特征在于：所述主体包括：
    一支座，它内开设有一阶梯孔和第一贯穿孔，所述阶梯孔具有一大孔和一小孔，所述第一贯穿孔贯穿大孔之内外；及
    一内架，所述水路设在内架上，它开设有第二贯穿孔，所述第二贯穿孔贯穿水路的突变腔的内外；
    所述内架装配在支座的大孔之内，所述突变腔接通小孔，所述弹性密封套套接在内架之外，并介于第一贯穿孔和第二贯穿孔之间。
  4. 根据权利要求3所述的用于水路领域中的吸气止逆装置，其特征在于：所述突变腔的截面面积和小孔的截面面积相等。
  5. 根据权利要求3所述的用于水路领域中的吸气止逆装置，其特征在于：所述阶梯孔的轴线和水路的轴线重合。
  6. 根据权利要求3所述的用于水路领域中的吸气止逆装置，其特征在于：所述第二贯穿孔的内端口设在突变腔的根处。
  7. 根据权利要求3所述的用于水路领域中的吸气止逆装置，其特征在于：
    所述内架之外侧面包括一阶梯面，所述阶梯面具有一大侧面和一小侧面；
    所述大侧面密封固接在大孔，所述小侧面和大孔内侧面之间留有装接间隙，所述装接间隙介于第一贯穿孔和第二贯穿孔之间，所述密封套装设在装接间隙之内。
  8. 根据权利要求7所述的用于水路领域中的吸气止逆装置，其特征在于：所述弹性密封套包括一连接头和一由连接头向下向外延伸的喇叭套，所述连接头固接在内架的小侧面，所述喇叭套对应在第一贯穿孔和第二贯穿孔之间。
  9. 根据权利要求3所述的用于水路领域中的吸气止逆装置，其特征在于：所述支座为一球头，包括一球头部和一连接部，第一贯穿孔对称设置在球头部。
PCT/CN2011/073807 2010-05-11 2011-05-09 用于水路领域中的吸气止逆装置 WO2011140958A1 (zh)

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