WO2011140969A1 - 防倒流机构 - Google Patents

防倒流机构 Download PDF

Info

Publication number
WO2011140969A1
WO2011140969A1 PCT/CN2011/073879 CN2011073879W WO2011140969A1 WO 2011140969 A1 WO2011140969 A1 WO 2011140969A1 CN 2011073879 W CN2011073879 W CN 2011073879W WO 2011140969 A1 WO2011140969 A1 WO 2011140969A1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic sealing
waterway
backflow mechanism
field according
section
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2011/073879
Other languages
English (en)
French (fr)
Inventor
周华松
刘梓光
陈添育
熊洪煌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Solex High Tech Industries Co Ltd
Original Assignee
Xiamen Solex High Tech Industries Co Ltd
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.)
Filing date
Publication date
Priority claimed from CN 201010172796 external-priority patent/CN101818822A/zh
Priority claimed from CN 201020191452 external-priority patent/CN201706016U/zh
Application filed by Xiamen Solex High Tech Industries Co Ltd filed Critical Xiamen Solex High Tech Industries Co Ltd
Publication of WO2011140969A1 publication Critical patent/WO2011140969A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • F16K15/14—Check valves with flexible valve members
    • F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre

Definitions

  • the present invention relates to an anti-backflow mechanism for use in the bathing field.
  • the existing anti-backflow mechanism such as ZL200720008772.5 disclosed in the Chinese patent database.
  • the anti-backflow mechanism comprises a base body, a spring and a seal.
  • the matrix is formed as a waterway.
  • the seal is connected within the waterway by a spring. When the waterway is downstream, the water pressure is acting on the seal, so that the spring is compressed, so that the waterway is turned on; when the waterway is reversed, the water pressure acts on the seal, and the spring force acts on the seal to seal the waterway. .
  • the existing anti-backflow mechanism has the following disadvantages: 1. Many parts, high cost, inconvenient assembly; 2. Large occupied space, not suitable for the water outlet terminal in the shower field, such as shower or faucet, no practicality.
  • the present invention provides an anti-backflow mechanism for use in the bathing field, which overcomes the deficiencies of the water outlet terminal that cannot be applied to the bathing field in the backflow prevention mechanism of the prior art.
  • Used in the anti-backflow mechanism in the bathing area it includes:
  • a substrate having a waterway, a fixed seat located within the waterway, and at least one spoke securing the fixed seat within the waterway, wherein the spokes form a passage therebetween;
  • An elastic sealing member having an elastic sealing piece and a fixing portion disposed on the front surface of the elastic sealing piece, the fixing portion is fixed to the fixing seat, and the elastic sealing piece is adapted to the water path, wherein: the water flow is flowing downstream, The elastic sealing piece is subjected to a forward flow impact to conduct a passage; when the water flow is reversed, the elastic sealing piece is subjected to a backflow impact to seal the passage.
  • the fixing portion has a fitting portion fixed to the front surface of the elastic sealing sheet, a locking portion fixed to the fitting portion, and a guiding portion fixed to the engaging portion, and the fixing portion passes through the through hole.
  • the fitting section and the through hole are adapted to be coupled together, and the sectional area of the engaging section is larger than the cross-sectional area of the through hole.
  • a fixing shaft is convexly arranged on the back surface of the fixing seat
  • the fixing portion is provided as a set of holes, and the sleeve holes are tightly sleeved on the fixed shaft.
  • the elastic sealing sheet comprises a basic section and a V-shaped section extending outward from the periphery of the basic section, the V-shaped section opening facing the forward direction.
  • the V-shaped section includes an inclined section extending from the periphery of the basic section toward the back and a gripping section extending outwardly from the inclined section.
  • the outer peripheral portion of the elastic sealing sheet is bent toward the back.
  • the outer peripheral portion of the front surface of the elastic sealing sheet is chamfered.
  • the base body includes a kit, and the inner hole of the kit is the water passage; the spoke annular array is fixed between the kit and the mount.
  • the inner hole of the kit is a stepped hole, and the sealing sheet faces the stepped surface of the stepped hole.
  • the step surface is provided as an inclined surface.
  • the fixing joint comprises an adapting section, a snapping section and a guiding section, and combining the elastic property of the sealing member to fix the fixing joint on the fixing seat, and can strengthen the fixing between the fixing seat and the fixing part;
  • the elastic sealing piece comprises a basic section and a V-shaped section, and the V-shaped section opening faces forward, and the deformation performance of the V-shaped section can enhance the sealing performance;
  • the outer peripheral portion of the elastic sealing sheet is bent toward the back to enhance the deformation coefficient and enhance the sealing performance
  • the outer side of the front side of the elastic sealing piece is chamfered to enhance the deformation coefficient and enhance the sealing performance
  • the inner hole of the kit is a stepped hole, and the front surface of the sealing piece faces the stepped surface of the stepped hole, and the sealing performance is strong.
  • FIG. 1 is a perspective exploded view of the anti-backflow mechanism of the first embodiment.
  • FIG. 2 is a schematic perspective cross-sectional view of the anti-backflow mechanism of the first embodiment, in which the waterway is downstream.
  • FIG. 3 is a schematic cross-sectional view of the anti-backflow mechanism of the first embodiment, in which the waterway is downstream.
  • FIG. 4 is a schematic perspective cross-sectional view of the anti-backflow mechanism of the first embodiment, in which the water path is reversed.
  • Fig. 5 is a schematic cross-sectional view showing the backflow prevention mechanism of the first embodiment, in which the water passage is reversed.
  • FIG. 6 is a schematic cross-sectional view of the anti-backflow mechanism of the second embodiment.
  • Fig. 7 is a schematic cross-sectional view showing the backflow prevention mechanism of the third embodiment.
  • Fig. 8 is a schematic cross-sectional view showing the backflow prevention mechanism of the fourth embodiment.
  • FIG. 9 is a schematic cross-sectional view of the anti-backflow mechanism of the fifth embodiment.
  • Fig. 10 is a schematic cross-sectional view showing the backflow prevention mechanism of the sixth embodiment.
  • an anti-backflow mechanism for use in the bathing field includes a base 100 and an elastomeric seal 200.
  • the base 100 includes a kit 110, a mounting base 120 and a plurality of spokes 130.
  • the inner hole of the sleeve 110 is formed as a water path 140.
  • the inner hole is a stepped hole, and the stepped surface 141 of the stepped hole may be a flat surface or an inclined surface.
  • the mount 120 is located in the waterway 140 and is secured within the waterway 140 by a plurality of spokes 130.
  • the spokes 130 are annularly arrayed, and a path is formed between each of the two spokes 130 that are spaced apart.
  • a uniform through hole 121 is defined in the fixing base 120.
  • the sleeve 110 is recessed with an annular groove 111, and an O-ring 112 is connected to the annular groove 111.
  • the elastic sealing member 200 is integrally formed and has an elastic sealing piece 210 and a fixing portion 220 provided on the front surface of the elastic sealing piece 210.
  • the fixing portion 220 has a fitting portion 221 fixed to the front surface of the elastic sealing sheet 200, a locking portion 222 fixed to the fitting portion, and a guiding portion 223 fixed to the engaging portion, the guiding portion
  • an inclined guide surface is provided above for assembly.
  • the outer peripheral portion of the front surface of the elastic sealing sheet 210 is chamfered 211.
  • the fixing portion 220 of the elastic sealing member 200 passes through the through hole 121 of the fixing base 120 of the base 100, and the fitting portion 221 and the through hole 121 are fitted together, and the sectional area of the engaging portion 222 is larger than The cross-sectional area of the through hole 121 is locked to the front surface of the fixing base 120.
  • the sealing sheet 210 faces the step surface 141 of the stepped hole of the base 100.
  • the elastic sealing piece 210 is reversed or reversely deformed by the backflow impact to press against the back surface of the spoke 130 and the step surface 141 to seal the passage, and the water passage 140 is sealed at this time.
  • Example 2 It differs from the first embodiment in that, referring to FIG. 6, the outer peripheral portion of the elastic sealing sheet 210 is bent toward the back.
  • Example 3 It differs from the first embodiment in that, referring to FIG. 7, the elastic sealing piece 210 includes a basic section 212, an inclined section 213 extending from the periphery of the basic section 212 toward the back, and a positive section from the inclined section.
  • An outwardly extending gripping section 214, the angled section 213 and the gripping section 214 cooperate to form a V-shaped section, the V-shaped section opening facing the forward direction.
  • an anti-backflow mechanism for use in the bathing field includes a base 100 and an elastomeric seal 200.
  • the base 100 includes a kit 110, a mounting base 120 and a plurality of spokes 130.
  • the inner hole of the sleeve 110 is formed as a water path 140.
  • the inner hole is a stepped hole, and the stepped surface 141 of the stepped hole may be a flat surface or an inclined surface.
  • the mount 120 is located in the waterway 140 and is secured within the waterway 140 by a plurality of spokes 130.
  • the spokes 130 are annularly arrayed, and each of the two spokes 130 spaced apart is formed as a passage.
  • a fixing shaft 122 is protruded from the back of the fixing base 120.
  • the sleeve 110 is recessed with an annular groove 111, and an O-ring 112 is connected to the annular groove 111.
  • the elastic sealing member 200 is integrally formed and has an elastic sealing piece 210 and a fixing portion 220 provided on the front surface of the elastic sealing piece 210.
  • the fixing portion 220 is formed as a socket hole.
  • the outer peripheral portion of the front surface of the elastic sealing sheet 210 is chamfered 211.
  • the sleeve hole of the elastic sealing member 200 is tightly sleeved on the fixing shaft 122 of the fixing base 120 of the base body 100.
  • the sealing sheet 210 faces the step surface 141 of the stepped hole of the base 100.
  • the elastic sealing piece 210 When the water flow 140 flows downstream, the elastic sealing piece 210 is forwardly deformed by the forward impact to conduct the passage, and the water passage 140 is turned on; when the water flow 140 flows backward, the elastic sealing piece 210 is reversed or reversely deformed by the reverse flow impact.
  • the passage is pressed against the back surface of the spoke 130 and the step surface 141 to seal the passage, at which time the water passage 140 is sealed.
  • Example 5 It differs from the fourth embodiment in that, referring to FIG. 9, the outer peripheral portion of the elastic sealing sheet 210 is bent toward the back.
  • Example 6 It differs from the fourth embodiment in that, referring to FIG. 10, the elastic sealing piece 210 includes a basic section 212, an inclined section 213 extending from the periphery of the basic section 212 toward the back outward, and a tilting section to the positive direction. An outwardly extending gripping section 214, the angled section 213 and the gripping section 214 cooperate to form a V-shaped section, the V-shaped section opening facing the forward direction.
  • the anti-backflow mechanism used in the bathing field has a water flow downstream, and the elastic sealing piece is subjected to a forward flow impact to conduct a passage; when the water flow is reversed, the elastic sealing piece is subjected to a backflow impact to seal the passage.
  • the invention can be applied to a shower head or a faucet in the bathing field, and has good industrial applicability.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)
  • Nozzles (AREA)

Description

[根据细则37.2由ISA制定的发明名称]　防倒流机构 技术领域
本发明涉及一种用在沐浴领域中的防倒流机构。
背景技术
现有的防倒流机构，如中国专利数据库公开的ZL200720008772.5。防倒流机构，它包括一基体、一弹簧和一密封件。所述基体内形成为水路。所述密封件通过弹簧连接在水路之内。在水路顺流时，水压正作用在密封件上，使弹簧压缩，使得水路导通；在水路倒流时，水压反作用在密封件上，弹簧弹力作用在密封件上，使密封件密封水路。现有的防倒流机构存在有如下不足：1、零件多，成本高，装配不便；2、占用空间大，不适用沐浴领域的出水终端，如花洒或龙头，无实用性。
发明内容
本发明提供了用在沐浴领域中的防倒流机构，其克服了背景技术中的防倒流机构所存在的无法应用于沐浴领域的出水终端的不足。
本发明解决其技术问题的所采用的技术方案是：
用在沐浴领域中的防倒流机构，它包括：
一基体，它具有一水路、一位于水路之内的固定座和至少一将固定座固接在水路之内的辐条，所述该些辐条之间形成通路；及
一弹性密封件，它具有一弹性密封片和一设在弹性密封片正面的固定部，所述固定部固接在固定座，所述弹性密封片适配水路，其中：水路水流顺流，则弹性密封片受顺流冲击作用以导通通路；水路水流倒流，则弹性密封片受倒流冲击作用以密封通路。
一较佳实施例之中：
所述固定座之内设有一贯穿孔；
所述固定部具有一固接在弹性密封片正面的适配段、一固接在适配段的卡接段和一固接在卡接段的导向段，所述固定部穿过贯穿孔，而且，所述适配段和贯穿孔适配连接在一起，所述卡接段截面面积大于贯穿孔截面面积。
一较佳实施例之中：
所述固定座背面凸设有一固定轴；
所述固定部处设置为一套接孔，所述套接孔紧套在固定轴。
一较佳实施例之中：所述弹性密封片包括一基本段和一由基本段周缘向外延伸而成的V形段，所述V形段开口朝向正向。
一较佳实施例之中：所述V形段包括一由基本段周缘向背向向外延伸的倾斜段及一由倾斜段向正向向外延伸的抓紧段。
一较佳实施例之中：所述弹性密封片外侧周部朝背向弯折。
一较佳实施例之中：所述弹性密封片正面外侧周部设为倒角。
一较佳实施例之中：所述基体包括一套件，所述套件的内孔为所述水路；该些辐条环形阵列固接在套件和固定座之间。
一较佳实施例之中：所述套件的内孔为阶梯孔，所述密封片正面朝向阶梯孔的阶梯面。
一较佳实施例之中：所述阶梯面设置为倾斜面。
本技术方案与背景技术相比，它具有如下优点：
1、将弹性密封件的变形功能应用至水路中，水路水流顺流时弹性密封片受顺流冲击作用正向变形以导通通路，水路水流倒流时弹性密封片受倒流冲击作用复位或反向变形以密封通路，则克服了背景技术所存在的不足，弹性密封片占用空间小，能够适用于沐浴领域中的花洒或龙头，实用性强，零件少，降低成本；
2、固接头包括适配段、卡接段和导向段，将其和密封件的弹性性能结合，便于将固接头固定在固定座，能增强固定座和固定部之间的固接；
3、设有环形陈列的多个辐条，密封片在密封时可靠在辐条之上，能增强密封性能，防止反向变形过大，则水压越大密封性能越强；
4、弹性密封片包括基本段和V形段，V形段开口朝向正向，利用V型段的变形性能，能够增强密封性能；
5.弹性密封片外侧周部朝背向弯折，增强变形系数，增强密封性能；
6.弹性密封片正面外侧周部设为倒角，增强变形系数，增强密封性能；
7.套件的内孔为阶梯孔，密封片正面朝向阶梯孔的阶梯面，密封性能强。
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为实施例一的防倒流机构的立体分解示意图。
图2为实施例一的防倒流机构的立体剖面示意图，此时水路顺流。
图3为实施例一的防倒流机构的中剖剖面示意图，此时水路顺流。
图4为实施例一的防倒流机构的立体剖面示意图，此时水路倒流。
图5为实施例一的防倒流机构的中剖剖面示意图，此时水路倒流。
图6为实施例二的防倒流机构的中剖剖面示意图。
图7为实施例三的防倒流机构的中剖剖面示意图。
图8为实施例四的防倒流机构的中剖剖面示意图。
图9为实施例五的防倒流机构的中剖剖面示意图。
图10为实施例六的防倒流机构的中剖剖面示意图。
具体实施方式
实施例一。请查阅图1至图5，用在沐浴领域中的防倒流机构，它包括一基体100和一弹性密封件200。
所述基体100，它包括一套件110、一固定座120和多个辐条130。所述套件110的内孔形成为水路140，本实施例之中，所述内孔为阶梯孔，所述阶梯孔的阶梯面141可为平面也可为倾斜面。所述固定座120位于水路140之中，并通过多个辐条130将其固接在水路140之内。所述该些辐条130环形阵列，而且，每相隔的两个辐条130之间都形成通路。所述固定座120之内设有一贯穿孔121。最好，所述套件110之外凹设有一环形槽111，所述环形槽111之内连接有一O型圈112。
所述弹性密封件200，它一体成型，并具有一弹性密封片210和一设在弹性密封片210正面的固定部220。所述固定部220具有一固接在弹性密封片200正面的适配段221、一固接在适配段的卡接段222和一固接在卡接段的导向段223，所述导向段之上最好设置有倾斜导向面，以便于装配。所述弹性密封片210正面外侧周部设为倒角211。
所述弹性密封件200的固定部220穿过基体100的固定座120的贯穿孔121，而且，所述适配段221和贯穿孔121适配连接在一起，所述卡接段222截面面积大于贯穿孔121截面面积并卡接在固定座120正面。所述密封片210正面朝向基体100的阶梯孔的阶梯面141。
请查阅图2和图3，水路140水流顺流时，弹性密封片210受顺流冲击作用正向变形以导通通路，此时水路140导通；
请查阅图4和图5，水路140水流倒流时，弹性密封片210受倒流冲击作用复位或反向变形靠压在辐条130背面和阶梯面141，以密封通路，此时水路140密封。
实施例二。它与实施例一不同之处在于：请查阅图6，所述弹性密封片210外侧周部朝背向弯折。
实施例三。它与实施例一不同之处在于：请查阅图7，所述弹性密封片210包括一基本段212、一由基本段212周缘向背向向外延伸的倾斜段213及一由倾斜段向正向向外延伸的抓紧段214，所述倾斜段213和抓紧段214配合组成V形段，V形段开口朝向正向。
实施例四。请查阅图8，用在沐浴领域中的防倒流机构，它包括一基体100和一弹性密封件200。
所述基体100，它包括一套件110、一固定座120和多个辐条130。所述套件110的内孔形成为水路140，本实施例之中，所述内孔为阶梯孔，所述阶梯孔的阶梯面141可为平面也可为倾斜面。所述固定座120位于水路140之中，并通过多个辐条130将其固接在水路140之内。所述该些辐条130环形阵列，而且，每相隔的两个辐条130之间都形成为通路。所述固定座120背面凸设有一固定轴122。最好，所述套件110之外凹设有一环形槽111，所述环形槽111之内连接有一O型圈112。
所述弹性密封件200，它一体成型，并具有一弹性密封片210和一设在弹性密封片210正面的固定部220。所述固定部220形成为套接孔。所述弹性密封片210正面外侧周部设为倒角211。
所述弹性密封件200的套接孔紧套在基体100的固定座120的固定轴122。所述密封片210正面朝向基体100的阶梯孔的阶梯面141。
水路140水流顺流时，弹性密封片210受顺流冲击作用正向变形以导通通路，此时水路140导通；水路140水流倒流时，弹性密封片210受倒流冲击作用复位或反向变形靠压在辐条130背面和阶梯面141，以密封通路，此时水路140密封。
实施例五。它与实施例四不同之处在于：请查阅图9，所述弹性密封片210外侧周部朝背向弯折。
实施例六。它与实施例四不同之处在于：请查阅图10，所述弹性密封片210包括一基本段212、一由基本段212周缘向背向向外延伸的倾斜段213及一由倾斜段向正向向外延伸的抓紧段214，所述倾斜段213和抓紧段214配合组成V形段，V形段开口朝向正向。
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
本发明用在沐浴领域中的防倒流机构，其水路水流顺流，则弹性密封片受顺流冲击作用以导通通路；水路水流倒流，则弹性密封片受倒流冲击作用以密封通路。本发明能够适用于沐浴领域中的花洒或龙头，具有良好的工业实用性。

Claims (10)

  1. 用在沐浴领域中的防倒流机构，其特征在于：它包括：
    一基体，它具有一水路、一位于水路之内的固定座和至少一将固定座固接在水路之内的辐条，所述该些辐条之间形成通路；及
    一弹性密封件，它具有一弹性密封片和一设在弹性密封片正面的固定部，所述固定部固接在固定座，所述弹性密封片适配水路，其中：水路水流顺流，则弹性密封片受顺流冲击作用以导通通路；水路水流倒流，则弹性密封片受倒流冲击作用以密封通路。
  2. 根据权利要求1所述的用在沐浴领域中的防倒流机构，其特征在于：
    所述固定座之内设有一贯穿孔；
    所述固定部具有一固接在弹性密封片正面的适配段、一固接在适
    配段的卡接段、一固接在卡接段的导向段，所述固定部穿过贯穿孔，而且，所述适配段和贯穿孔适配连接在一起，所述卡接段截面面积大于贯穿孔截面面积。
  3. 根据权利要求1所述的用在沐浴领域中的防倒流机构，其特征在于：
    所述固定座背面凸设有一固定轴；
    所述固定部设置为一套接孔，所述套接孔紧套在固定轴。
  4. 根据权利要求1或2或3所述的用在沐浴领域中的防倒流机构，其特征在于：所述弹性密封片包括一基本段和一由基本段周缘向外延伸而成的V形段，所述V形段开口朝向正向。
  5. 根据权利要求4所述的用在沐浴领域中的防倒流机构，其特征在于：所述V形段包括一由基本段周缘向背向向外延伸的倾斜段及一由倾斜段向正向向外延伸的抓紧段。
  6. 根据权利要求1或2或3所述的用在沐浴领域中的防倒流机构，其特征在于：所述弹性密封片外侧周部朝背向弯折。
  7. 根据权利要求1或2或3所述的用在沐浴领域中的防倒流机构，其特征在于：所述弹性密封片正面外侧周部设为倒角。
  8. 根据权利要求1或2或3所述的用在沐浴领域中的防倒流机构，其特征在于：所述基体包括一套件，所述套件的内孔为所述水路；该些辐条环形阵列固接在套件和固定座之间。
  9. 根据权利要求8所述的用在沐浴领域中的防倒流机构，其特征在于：所述套件的内孔为阶梯孔，所述密封片正面朝向阶梯孔的阶梯面。
  10. 根据权利要求9所述的用在沐浴领域中的防倒流机构，其特征在于：所述阶梯面设置为倾斜面。
PCT/CN2011/073879 2010-05-14 2011-05-10 防倒流机构 Ceased WO2011140969A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN 201010172796 CN101818822A (zh) 2010-05-14 2010-05-14 用在沐浴领域中的防倒流机构
CN201020191452.X 2010-05-14
CN 201020191452 CN201706016U (zh) 2010-05-14 2010-05-14 一种用在沐浴领域中的防倒流机构
CN201010172796.0 2010-05-14

Publications (1)

Publication Number Publication Date
WO2011140969A1 true WO2011140969A1 (zh) 2011-11-17

Family

ID=44913945

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/073879 Ceased WO2011140969A1 (zh) 2010-05-14 2011-05-10 防倒流机构

Country Status (1)

Country Link
WO (1) WO2011140969A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014135253A1 (en) * 2013-03-05 2014-09-12 Daimler Ag Device for covering the end of a pipe
CN110185875A (zh) * 2019-05-22 2019-08-30 路达(厦门)工业有限公司 防水击装置
CN111888939A (zh) * 2020-08-13 2020-11-06 杭州海纳环保技术有限公司 一种防纯水回流的反渗透膜中心杆
CN112984171A (zh) * 2020-12-31 2021-06-18 樊荣龙 一种新型防虹吸出水连接装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0674128A2 (en) * 1994-02-28 1995-09-27 ERSI ITALIA S.p.A. Backflow preventing valve for vehicle fuel tanks
CN2438892Y (zh) * 2000-08-18 2001-07-11 成都英德实业有限公司 卫生膜式止回阀
CN2500875Y (zh) * 2001-08-22 2002-07-17 刘张碧梅 改良的排气阀
CN2856640Y (zh) * 2005-12-15 2007-01-10 上海连成（集团）有限公司 一种单向排气阀
WO2008049702A1 (de) * 2006-10-25 2008-05-02 Robert Bosch Gmbh Reservoir für einen kraftstoffbehälter
CN201363462Y (zh) * 2009-03-23 2009-12-16 贵州航天林泉电机有限公司 一种单向阀的密封结构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0674128A2 (en) * 1994-02-28 1995-09-27 ERSI ITALIA S.p.A. Backflow preventing valve for vehicle fuel tanks
CN2438892Y (zh) * 2000-08-18 2001-07-11 成都英德实业有限公司 卫生膜式止回阀
CN2500875Y (zh) * 2001-08-22 2002-07-17 刘张碧梅 改良的排气阀
CN2856640Y (zh) * 2005-12-15 2007-01-10 上海连成（集团）有限公司 一种单向排气阀
WO2008049702A1 (de) * 2006-10-25 2008-05-02 Robert Bosch Gmbh Reservoir für einen kraftstoffbehälter
CN201363462Y (zh) * 2009-03-23 2009-12-16 贵州航天林泉电机有限公司 一种单向阀的密封结构

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014135253A1 (en) * 2013-03-05 2014-09-12 Daimler Ag Device for covering the end of a pipe
CN110185875A (zh) * 2019-05-22 2019-08-30 路达(厦门)工业有限公司 防水击装置
CN111888939A (zh) * 2020-08-13 2020-11-06 杭州海纳环保技术有限公司 一种防纯水回流的反渗透膜中心杆
CN111888939B (zh) * 2020-08-13 2024-11-15 杭州海纳环保技术有限公司 一种防纯水回流的反渗透膜中心杆
CN112984171A (zh) * 2020-12-31 2021-06-18 樊荣龙 一种新型防虹吸出水连接装置

Similar Documents

Publication Publication Date Title
WO2011140969A1 (zh) 防倒流机构
US7384007B2 (en) Shower head structure
USD930785S1 (en) Micro water feature inline adapter fitting with angled LED light port
US6763533B2 (en) Sink drainage system and method
CA2442067A1 (en) Gasket
TW202122220A (zh) C型扣環鉗
GB2383747A (en) Rack with main frame that has free ends and a connector rod which are inserted into fastening seats
US7427107B2 (en) Movable backrest for a chair
KR102304858B1 (ko) 꼬임방지 기능을 갖는 수도배관용 고압호스 연결구
US20190157800A1 (en) Enclosure for a connector on a cable
US7210175B2 (en) Swimming goggles
JP3078605U (ja) 管体接続具および蛇口取付型シャワー装置
WO2012003776A1 (zh) 节水止逆阀
US7458680B1 (en) Eyeglasses
CN101818822A (zh) 用在沐浴领域中的防倒流机构
EP4163195A1 (en) Clamp assembly for attaching grip to bike handlebar
US20250059738A1 (en) Faucet and pipeline structure thereof
WO2003089825A3 (en) Sealing compression ferrule for plumbing connection fitting
US12404664B2 (en) Shower drain assemblies
CN201706016U (zh) 一种用在沐浴领域中的防倒流机构
CN215334691U (zh) 一种限流阀
US20070218730A1 (en) Cable securing structure in a terminal seat
JP3570097B2 (ja) 水栓用ジョイントエルボの取付構造
CN213332988U (zh) 一种卡压式管内扣式快速接头
CN211883400U (zh) 一种不锈钢水壶的视窗机构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11780190

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11780190

Country of ref document: EP

Kind code of ref document: A1