WO2019036822A1 - 流体分流装置 - Google Patents

流体分流装置 Download PDF

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Publication number
WO2019036822A1
WO2019036822A1 PCT/CN2017/098183 CN2017098183W WO2019036822A1 WO 2019036822 A1 WO2019036822 A1 WO 2019036822A1 CN 2017098183 W CN2017098183 W CN 2017098183W WO 2019036822 A1 WO2019036822 A1 WO 2019036822A1
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WO
WIPO (PCT)
Prior art keywords
joint
container
female thread
wall
fluid
Prior art date
Application number
PCT/CN2017/098183
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English (en)
French (fr)
Inventor
陈保同
Original Assignee
深圳渐开线智能科技有限公司
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Application filed by 深圳渐开线智能科技有限公司 filed Critical 深圳渐开线智能科技有限公司
Priority to PCT/CN2017/098183 priority Critical patent/WO2019036822A1/zh
Publication of WO2019036822A1 publication Critical patent/WO2019036822A1/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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/02—Branch units, e.g. made in one piece, welded, riveted
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe

Definitions

  • the present invention relates to the field of fluid connectors, and more particularly to a connection device for dispensing fluid from a main line to a branch line.
  • Gas and liquid conveying pipelines are widely used in petroleum, chemical and other industrial fields.
  • the fluid in the main pipe or vessel often needs to be connected to multiple branch lines to distribute fluids to meet industrial needs, to achieve sample testing, fluid performance testing, and heat dissipation.
  • the gas source distributor is the most widely used in the industrial field.
  • Chinese patent CN102788246A discloses a gas source distributor, which is a centrally connected starting instrument connected to the gas main pipe, which can be conveniently controlled. The continuity of each pipeline.
  • the Chinese patent CN104180115A considers that the connection method of the prior patent causes the container wall to be too thick, which causes the entire device to be cumbersome, and thus an improvement has been made to invent a thin-wall type fluid flow dividing device.
  • the fluid shunt device disclosed in Chinese Patent No. CN104180115A has a thin wall and a light weight, but the processing and manufacturing process is not good.
  • the insertion pin must be carried out from the inner end of the container, and after the insertion is completed, the container is further processed.
  • the welding of the end caps, the assembly process, the assembly speed is slow, and finally the welding is easily broken, resulting in seal failure and low yield.
  • the object of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a fluid flow dividing device which can achieve a firm connection and a stable seal by using a thin-walled container and a snap-fit connection, and the device is quick to process.
  • a fluid flow dividing device comprising a container and a plurality of branch line connecting devices; the container comprising at least one fluid main passage, further comprising a cylindrical wall disposed on the container and assembled with a plurality of branch line connecting devices a circular hole;
  • the characteristic is: the branch line connecting device comprises a joint, a fastening component and a sealing member; the joint is substantially round tubular, has a through hole, and the first end has an snail for connecting an external device or a pipe a central hole is formed in the female thread, and the central hole penetrates along the joint axial direction to the second end of the joint, and the diameter of the central hole at the second end is smaller than the diameter of the female thread, so that the central hole forms an annular platform near the second end An annular groove is disposed on the second end surface of the joint; the fastening component includes a female thread portion, a thin wall portion, an outer edge portion, a protrusion portion and a center hole, and the central hole of the fastening member penetrates the female thread portion
  • the thickness of the thin portion of the fastening member is smaller than the thickness of the female thread portion.
  • the outer diameter of the thin portion is the same as the outer diameter of the female thread portion, and the diameter of the central hole before the thin portion is plasticized is larger than the diameter of the female thread portion.
  • the fastening member is prevented from being loosened in the axial direction, and the outer wall of the thin portion is provided with a grain or a protrusion to increase the friction between the protrusion and the inside of the container.
  • the joint and the fastening component are prevented from loosening axially, and the lower edge of the outer edge portion is provided with a grain or a protrusion, and the annular platform is also provided with a grain or a convex shape.
  • the fluid flow dividing device further includes a bleed port for cleaning on the container.
  • end surface of the second end of the joint is a flat surface, and the plastic deformation of the fastening member is also deformed, so that the outer wall of the container is attached to the second end surface of the joint.
  • the second end face of the joint may also be a circular arc surface having a radius corresponding to the wall of the container.
  • the sealing method of the branch line connecting device and the container in the invention is reliable in sealing and the processing technology is simple; in addition, the connection manner of the branch line connecting device and the container adopts a manner of fastening in the inside of the container, and is fastened. ⁇ Just operate outside the full container.
  • DRAWINGS 1 is a structural view of a fluid splitting device
  • FIG. 2 is an exploded view of a fluid splitting device
  • Figure 3 is an axial cross-sectional view of the fastening member
  • Figure 4 is an axial cross-sectional view of the joint
  • FIG. 5 is a schematic structural view of a clamping device
  • FIG. 6 is a schematic view of the clamping device and the fastening member after being screwed together;
  • FIG. 7 is a schematic view showing the cooperation of the clamping device with the fastening member, the joint, and the sealing member;
  • FIG. 8 is a diagram showing a pre-compression state of the fastening device to the fastening member
  • FIG. 9 is a view showing a state in which the clamping device is compressed to the fastening member
  • FIG. 10 is a partial cross-sectional view of a fluid bypass device.
  • a fluid diverting device includes a container 10 and a plurality of branch line connecting devices;
  • the container 10 includes a circularly-shaped middle section 11 and a gathered front section 12.
  • the gathered rear section 13, the front section 12 and the rear section 13 are integrally joined by a weld bead 16 and a weld bead 17, and form a container having a cavity 19;
  • the front section 12 has a fluid main passage 14, and the rear section 13 has The venting interface 15, the cylindrical wall of the middle section 11 has six circular holes 18 assembled by the branch line connecting devices;
  • each branch line connecting device comprises a joint 20, a fastening member 30 and a sealing member 40.
  • the joint 20 has a substantially circular tubular shape with a through hole, the first end 21 having a female thread 22 for connecting an external device or a pipe, and a female hole forming a center hole, the center hole extending through the joint axially to the joint second End 29, the diameter of the central bore at the second end 29 is less than the diameter at the female thread, i.e., the diameter at the location 25 is less than the diameter at the location 28 such that the central bore forms an annular platform 24 adjacent the second end 29, and
  • the annular platform 24 is provided with a grain or a projection, and the end surface 23 at the second end of the joint is a flat surface on which an annular groove 26 is disposed.
  • the fastening member 30 includes a female thread portion 33, a thin portion 32, an outer edge portion 31, and a protrusion portion 3. 22 and the central hole, the outer diameter of the thin portion 32 is the same as the outer diameter of the female thread portion 33, the diameter of the central hole before the thin portion 32 is deformed is larger than the diameter of the female thread portion, and the wall thickness of the thin portion 32 is smaller than the wall of the female thread portion 33.
  • the outer wall of the thin portion 32 is provided with a drawing pattern 321 to improve the friction between the fastening member and the inner wall of the container, and the lower edge 311 of the outer edge portion 31 is provided with a grain to improve the friction between the fastening member and the joint, and the female thread portion
  • the front end 333 is in a folded shape, and the center hole of the fastening member 30 passes through the female thread portion 33, the thin portion 32 and the outer edge portion 31; the female thread portion 33 and the thin portion 32 of the fastening member 30 sequentially pass through the joint 20, and are sealed.
  • the member 40 and the circular hole 18 of the container under the external force in the axial direction and the opposite direction, the thin portion 32 is plastically collapsed and bulged radially outward toward the thin portion to form the protrusion 3 22 to make the outer edge of the joint
  • the lower edge 311 of the portion 31 abuts against the annular platform 24 of the joint, and the protrusion 322 abuts against the inner wall of the container surrounding the circular hole 18, so that the joint 20 forms an axial clamping with the container 10, and the fastening member 30 is deformed.
  • the wall of the crucible is also plastically deformed so that the outer wall of the container 10 fits over the second end face 23 of the joint, and The seal member 40 in the recess 26 is closed.
  • FIG. 6 to FIG. 10 show a branch line installation method of a fluid flow dividing device
  • FIG. 5 is a schematic view of a clamping device.
  • the specific installation method of the branch line is: a male thread of the mandrel 52 of the clamping device 50
  • the end 521 is screwed with the female thread 332 of the female threaded portion of the fastening component, and the screwing direction is as shown in FIG. 6, and the folded front end 3 33 of the fastening component is sequentially passed through the joint 20, the sealing member 40, and the circular hole 18.
  • the annular seal 18 is inserted into the recess 26, and the sleeve end 511 is abutted against the upper edge 312 of the fastener, and then the force F1 is applied to the sleeve 51 to apply a force on the mandrel 52. F2, so that the fastening member is axially compressed to urge the thin portion 32 to bulge radially outward to form the protrusion 322.
  • a fluid diverting device is substantially the same as the fluid diverting device of Embodiment 1, except that the second end face 23 of the joint is a circular arc surface corresponding to the radius of the middle portion 11 of the container.
  • the outer wall of the middle portion 11 of the container is naturally abutted with the second end surface 23 without being plastically deformed.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

一种流体分流装置，该装置包括容器（10）和多个支线管路连接装置，支线管路连接装置包括扣合件（30）、接头（20）和密封件（40）；轴向压缩扣合件（30），使扣合件（30）产生塑变后，将接头（20）与容器（10）连接为一体。该支线管路连接装置与容器的连接密封可靠，产品加工工艺简单。

Description

发明名称：流体分流装置
技术领域
[0001] 本发明创造涉及流体连接件领域， 具体涉及将流体从主管路分配到支线管路的 连接装置。
背景技术
[0002] 气体、 液体输送管道广泛应用于石油、 化工等工业领域。 在生产应用中， 主管 路或容器内的流体往往需要连接多个支线管路， 用以分配流体， 以满足工业需 求， 实现样本检测、 流体性能指标测试、 循环散热等目的。 气源分配器在工业 领域中应用最为广泛， 中国专利 CN102788246A公幵了一种气源分配器,这种气源 分配器是集中安装的启动仪表与气体总管相连接的中间桥梁， 它可以方便控制 各管路的通断。 中国专利 CN104180115A认为在先专利的连接方式会导致容器壁 过厚， 这就导致整个装置笨重， 因此作出改进， 发明了薄壁型流体分流装置。 中国专利 CN104180115A公幵的这种流体分流装置， 容器壁薄、 重量轻， 但是加 工制造工艺欠佳， 在这种装置中， 穿插固定销吋必须从容器内部一端进行， 穿 插完毕后， 再进行容器端盖的焊接， 这种装配工艺， 装配速度慢， 而且最后焊 接容易破坏导致密封失效， 成品率低。
技术问题
[0003] 本发明的目的在于克服上述现有技术的不足， 提供一种流体分流装置， 这种流 体分流装置采用薄壁容器、 扣合连接就能实现牢固连接和稳定密封， 该装置加 工快捷。
问题的解决方案
技术解决方案
[0004] 一种流体分流装置,包括容器和多个支线管路连接装置； 所述容器包括至少一个 流体主通道， 还包括设置在容器的圆柱壁上、 与多个支线管路连接装置装配的 圆孔； 其特征是： 支线管路连接装置包括接头、 扣合件和密封件； 所述接头大 致呈圆管状， 具有贯通的中心孔， 第一端具有用于连接外部设备或管道的阴螺 纹， 阴螺纹处形成中心孔， 该中心孔沿着接头轴向贯通至接头第二端， 中心孔 在第二端的直径小于阴螺纹处的直径， 使得中心孔在靠近第二端形成环状平台 ， 在接头第二端端面上设置有环形凹槽； 扣合件包括阴螺纹部、 薄壁部、 外沿 部、 突起部和中心孔， 扣合件的中心孔贯通阴螺纹部、 薄壁部和外沿部； 扣合 件的阴螺纹部和薄壁部依次穿过接头、 密封件和容器圆孔， 在轴向、 相向方向 上的外力作用下， 薄壁部塑变塌陷、 并向薄壁部径向向外鼓起， 形成突起部， 使接头外沿部的下缘抵顶在接头的环状平台上、 突起部抵顶在环绕圆孔的容器 内壁上， 实现接头与容器形成轴向夹紧， 并将密封件封闭在凹槽内。
[0005] 进一步的， 所述扣合件薄壁部的壁厚小于阴螺纹部壁厚。
[0006] 进一步的， 薄壁部的外部直径与阴螺纹部外部直径相同， 薄壁部塑变前中心孔 直径大于阴螺纹部直径。 这种结构， 在塑变吋， 薄壁部更容易向径向向外鼓起 形成突起部， 而不会径向向内塌陷， 阻碍作为流道的中心孔。
[0007] 进一步的， 为了便于插入接头、 圆孔装配， 阴螺纹部前端呈收拢状。
[0008] 进一步的， 为了提高扣合件与容器内壁的摩擦力， 防止扣合件轴向松动， 在薄 壁部外壁设置有纹路或凸起， 以加大突起部与容器内部的摩擦力。
[0009] 进一步的， 为了提高扣合件与接头的摩擦力， 防止接头与扣合件轴向松动， 外 沿部的下缘设置有纹路或凸起， 环状平台上也设置有纹路或凸起。
[0010] 流体分流装置还包括设置在容器上的用于清扫的泄放接口。
[0011] 进一步的， 接头第二端端面是平面， 扣合件塑变吋压迫容器壁也发生塑变， 使 容器外壁贴合在接头第二端面上。
[0012] 作为另一种方案， 接头第二端面也可以是与容器壁半径相当的圆弧面。
发明的有益效果
有益效果
[0013] 本发明中的支线管路连接装置与容器的密封方式密封可靠， 加工工艺简单； 另 夕卜， 支线管路连接装置与容器的连接方式采用了在容器内部扣合的方式， 扣合 吋只需在完整容器外部操作。
对附图的简要说明
附图说明 [0014] 图 1是流体分流装置结构图；
[0015] 图 2是流体分流装置爆炸图；
[0016] 图 3是扣合件轴向剖视图；
[0017] 图 4是接头轴向剖视图；
[0018] 图 5是夹紧设备结构示意图；
[0019] 图 6是夹紧设备与扣合件旋合后的示意图；
[0020] 图 7是夹紧设备与扣合件、 接头、 密封件配合示意图;
[0021] 图 8是夹紧设备对扣合件预压缩状态图；
[0022] 图 9是夹紧设备对扣合件压缩完成状态图；
[0023] 图 10是流体分流装置局部剖视图。
实施该发明的最佳实施例
本发明的最佳实施方式
[0024] 为了便于理解本发明， 下面结合附图对本发明的具体实施例及装配过程作详细 说明。
本发明的实施方式
[0025] 实施例 1
[0026] 参照图 1、 图 2、 图 3、 图 4、 图 10， 一种流体分流装置,包括容器 10和多个支线管 路连接装置； 容器 10包括圆通状的中段 11、 收拢状的前段 12、 收拢状的后段 13 ， 前段 12和后段 13通过焊缝 16和焊缝 17连接为一体， 并形成具有空腔 19的容器 ； 前段 12上有流体主通道 14、 后段 13上有泄放接口 15， 中段 11的圆柱壁上有 6个 支线管路连接装置装配的圆孔 18 ; 每个支线管路连接装置包括接头 20、 扣合件 3 0和密封件 40。 接头 20大致呈圆管状， 具有贯通的中心孔， 第一端 21具有用于连 接外部设备或管道的阴螺纹 22， 阴螺纹处形成中心孔， 该中心孔沿着接头轴向 贯通至接头第二端 29， 中心孔在第二端 29的直径小于阴螺纹处的直径， 即位置 2 5处的直径小于位置 28处的直径， 使得中心孔在靠近第二端 29形成环状平台 24， 并且在环状平台 24上设置有纹路或凸起， 在接头第二端的端面 23是平面， 上面 设置有环形凹槽 26。 扣合件 30包括阴螺纹部 33、 薄壁部 32、 外沿部 31、 突起部 3 22和中心孔， 薄壁部 32的外部直径与阴螺纹部 33外部直径相同， 薄壁部 32塑变 前中心孔直径大于阴螺纹部直径， 薄壁部 32的壁厚小于阴螺纹部 33壁厚； 薄壁 部 32外壁设置有拉丝纹 321以提高扣合件与容器内壁的摩擦力， 外沿部 31的下缘 311设置有纹路以提高扣合件与接头的摩擦力， 阴螺纹部的前端 333呈收拢状， 扣合件 30的中心孔贯通阴螺纹部 33、 薄壁部 32和外沿部 31 ; 扣合件 30的阴螺纹 部 33和薄壁部 32依次穿过接头 20、 密封件 40和容器圆孔 18， 在轴向、 相向方向 上的外力作用下， 薄壁部 32塑变塌陷、 并向薄壁部径向向外鼓起， 形成突起部 3 22， 使接头外沿部 31的下缘 311抵顶在接头的环状平台 24上、 突起部 322抵顶在 环绕圆孔 18的容器内壁上， 实现接头 20与容器 10形成轴向夹紧， 扣合件 30塑变 吋压迫容器壁也发生塑变， 使容器 10外壁贴合在接头第二端面 23上， 并将密封 件 40封闭在凹槽 26内。
[0027] 图 6-图 10展示了一个流体分流装置的支线管路安装方式， 图 5是夹紧设备的示 意图， 支线管路具体安装方法为： 将夹紧设备 50的芯轴 52的阳螺纹端 521与扣合 件阴螺纹部的阴螺纹 332旋合， 旋合朝向如图 6所示， 再将扣合件的收拢状前端 3 33依次穿过接头 20、 密封件 40、 圆孔 18， 并使圆环形密封件 18嵌入到凹槽 26内 ， 并使套筒端部 511抵顶在扣合件的上缘 312， 然后再套筒 51上施加力 Fl、 在芯 轴 52上施加力 F2， 以使扣合件轴向压缩， 以促使薄壁部 32向径向向外鼓起， 形 成突起部 322， 随着力 Fl、 F2逐渐加大， 突起部 322抵顶在容器 10内壁， 并压迫 容器内壁塑变， 适应性的贴合在接头 20的端面 23上， 最后将芯轴 52与阴螺纹部 3 3旋幵， 如图 10所示完成一个支线管路的安装。 按照以上相同的方法， 安装剩余 的支线管路。
[0028] 实施例 2
[0029] 一种流体分流装置,与实施例 1中的流体分流装置基本相同， 不同之处在于， 接 头第二端面 23是与容器中段 11半径相当的圆弧面。 扣合件 30轴向压缩塑变过程 中， 容器中段 11外壁不塑变就与第二端面 23自然吻合对接。

Claims

权利要求书
[权利要求 1] 流体分流装置，包括容器和多个支线管路连接装置； 所述容器包括至 少一个流体主通道， 还包括设置在容器的圆柱壁上、 与多个支线管路 连接装置装配的圆孔； 其特征是： 支线管路连接装置包括接头、 扣合 件和密封件； 接头大致呈圆管状， 具有贯通的中心孔， 第一端具有用 于连接外部设备或管道的阴螺纹， 阴螺纹处形成中心孔， 该中心孔沿 着接头轴向贯通至接头第二端， 中心孔在第二端的直径小于阴螺纹处 的直径， 使得中心孔在靠近第二端形成环状平台， 在接头第二端端面 上设置有环形凹槽； 扣合件包括阴螺纹部、 薄壁部、 外沿部、 突起部 和中心孔， 扣合件的中心孔贯通阴螺纹部、 薄壁部和外沿部； 扣合件 的阴螺纹部和薄壁部依次穿过接头、 密封件和容器圆孔， 在轴向、 相 向方向上的外力作用下， 薄壁部塑变塌陷、 并向薄壁部径向外部鼓起 ， 形成突起部， 使接头外沿部的下缘抵顶在接头的环状平台上、 突起 部抵顶在环绕圆孔的容器内壁上， 实现接头与容器形成轴向夹紧， 并 将密封件封闭在凹槽内。
[权利要求 2] 根据权利要求 1所述的流体分流装置， 其特征是： 扣合件薄壁部的壁 厚小于阴螺纹部壁厚。
[权利要求 3] 根据权利要求 1所述的流体分流装置， 其特征是： 薄壁部的外部直径 与阴螺纹部外部直径相同， 薄壁部塑变前中心孔直径大于阴螺纹部直 径。
[权利要求 4] 根据权利要求 1所述的流体分流装置， 其特征是： 扣合件阴螺纹部前 端呈收拢状。
[权利要求 5] 根据权利要求 1所述的流体分流装置， 其特征是： 薄壁部外壁设置有 纹路或凸起。
[权利要求 6] 根据权利要求 5所述的流体分流装置， 其特征是： 外沿部的下缘设置 有纹路或凸起， 环状平台上也设置有纹路或凸起。
[权利要求 7] 根据权利要求 1所述的流体分流装置， 其特征是： 外沿部的下缘设置 有纹路或凸起， 环状平台上也设置有纹路或凸起。
[权利要求 8] 根据权利要求 1所述的流体分流装置， 其特征是： 流体分流装置还包 括设置在容器上的用于清扫的泄放接口。
[权利要求 9] 根据权利要求 1所述的流体分流装置， 其特征是： 接头第二端端面是 平面， 扣合件塑变吋压迫容器壁也发生塑变， 使容器外壁贴合在接头 第二端面上。
[权利要求 10] 根据权利要求 1所述的流体分流装置， 其特征是： 接头第二端面是与 容器壁半径相当的圆弧面。
PCT/CN2017/098183 2017-08-19 2017-08-19 流体分流装置 WO2019036822A1 (zh)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2264238A1 (en) * 1974-03-15 1975-10-10 Caillau Ets Pipe coupling for connecting through tank wall - has nut folding locking sleeve on threaded sleeve
US3984132A (en) * 1975-02-27 1976-10-05 The Weatherhead Company Bulkhead fitting
US4929001A (en) * 1989-06-02 1990-05-29 The B.F. Goodrich Company Tubular connector
US5213378A (en) * 1989-06-02 1993-05-25 The B. F. Goodrich Company Fluid connector
GB2266131A (en) * 1992-04-14 1993-10-20 Hanson Graville George Boss for connecting a pipe to a cylinder or tank
EP1319451A1 (de) * 2001-12-11 2003-06-18 Voss Automotive GmbH Stutzen für ein Wandteil, insbesondere für ein Wandteil eines Deckels oder Behälters
WO2003100309A1 (en) * 2002-05-23 2003-12-04 John Michael Canning Seal assembly
CN104180115A (zh) * 2014-08-27 2014-12-03 深圳市飞托克实业有限公司 流体分流装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2264238A1 (en) * 1974-03-15 1975-10-10 Caillau Ets Pipe coupling for connecting through tank wall - has nut folding locking sleeve on threaded sleeve
US3984132A (en) * 1975-02-27 1976-10-05 The Weatherhead Company Bulkhead fitting
US4929001A (en) * 1989-06-02 1990-05-29 The B.F. Goodrich Company Tubular connector
US5213378A (en) * 1989-06-02 1993-05-25 The B. F. Goodrich Company Fluid connector
GB2266131A (en) * 1992-04-14 1993-10-20 Hanson Graville George Boss for connecting a pipe to a cylinder or tank
EP1319451A1 (de) * 2001-12-11 2003-06-18 Voss Automotive GmbH Stutzen für ein Wandteil, insbesondere für ein Wandteil eines Deckels oder Behälters
WO2003100309A1 (en) * 2002-05-23 2003-12-04 John Michael Canning Seal assembly
CN104180115A (zh) * 2014-08-27 2014-12-03 深圳市飞托克实业有限公司 流体分流装置

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