WO1998045639A1 - Hose coupling - Google Patents

Hose coupling Download PDF

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Publication number
WO1998045639A1
WO1998045639A1 PCT/CN1997/000081 CN9700081W WO9845639A1 WO 1998045639 A1 WO1998045639 A1 WO 1998045639A1 CN 9700081 W CN9700081 W CN 9700081W WO 9845639 A1 WO9845639 A1 WO 9845639A1
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WO
WIPO (PCT)
Prior art keywords
pipe
tail
tube
hose
wall
Prior art date
Application number
PCT/CN1997/000081
Other languages
French (fr)
Chinese (zh)
Inventor
Xiaoming Liu
Original Assignee
Xiaoming Liu
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
Application filed by Xiaoming Liu filed Critical Xiaoming Liu
Priority to AU38457/97A priority Critical patent/AU3845797A/en
Publication of WO1998045639A1 publication Critical patent/WO1998045639A1/en

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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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
    • F16L33/223—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts

Definitions

  • the invention relates to a hose joint. Background technique
  • hoses such as gas water heaters, solar water heaters, gas stoves, etc.
  • the existing connection method is to sleeve the hose on a pipe head made of hard material, which essentially depends on the soft
  • the deformation of the tube is sleeved on the tube head, and the tightening pressure generated by the deformation is connected and sealed.
  • This method has the following defects: First, there is a certain range of deformation of the connecting hose. If the deformation is too small, there will be insufficient tightening pressure and leakage will occur, which will bring unsafe hidden dangers to use.
  • the second is the inside of the hose.
  • the diameter of the cavity is generally smaller than the outer diameter of the hard tube at the connection, so the connection is inconvenient, especially under the constraints of space, and the hose is not easy to be connected to the hard tube. This is also prohibited when used. Summary of the Invention
  • a hose joint of the present invention includes an inner pipe and an outer pipe.
  • the outer pipe can be sleeved on the inner pipe.
  • the head of the inner pipe is used to connect with the pipe to be connected.
  • the tail of the inner pipe It is used to sleeve the hose on it.
  • the tail of the inner tube is a slewing body, and its outer radial end surface is gradually reduced.
  • the inner wall of the tail of the outer tube is a tapered surface. The diameter of the tapered surface is gradually reduced toward the tail.
  • the tube can be placed at the tail of the inner tube and squeezed by the outer tube.
  • the inner pipe may be provided with an external thread
  • the outer pipe is provided with an internal thread matching the same.
  • FIG. 1 is a schematic diagram of an assembly knot of the present invention
  • Figure 3 is a left side view of Figure 2;
  • FIGS 4, 5, 6, and 7 are specific structural diagrams of the inner tube in different embodiments. Best Mode of the Invention
  • the hose joint of the present invention is composed of an inner pipe (10) and an outer pipe (20).
  • a hose (30) is sleeved on the tail portion (11) of the inner tube (10). Because the shape of the tail portion (11) is favorable to the outer tube (20) connected thereto, the hose (30) can be tightly compressed when tightened Under the uniform squeezing of the inner and outer pipes (10) and (20), it can not only ensure a reliable connection of the hose, but also ensure better sealing.
  • the front end of the inner tube (10) is provided with a union nut (40). The nut (40) is connected to other water or gas pipe fittings.
  • FIG. 2 is a schematic structural diagram of the outer tube (20) in FIG. 1.
  • the front end of the inner wall is provided with an internal thread (21).
  • the thread (21) is matched with the external thread (12) provided on the inner tube (10).
  • the rear end of the inner wall is a tapered surface (22).
  • the outer end (23) of the front end of the outer tube (20) is hexagonal. As shown in FIG. 3, this structure is convenient for installation with a tool, and can also be set into a handle-like structure for manual installation.
  • FIG. 4 shows the inner tube (10) in FIG. 1, and FIG. 5 shows the inner tube of another embodiment.
  • the outer pipe body of the inner pipe (10) is provided with an external thread (12), which cooperates with the internal thread (21) at the front end of the outer pipe (20), and its tail (11) is a reducing surface
  • the turning surface is to ensure that the hose (30) in FIG. 1 receives uniform pressure from around when it cooperates with the tapered surface (22) of the inner wall of the tail of the outer tube (20) in FIG. 1, as shown in FIGS. Shown, tail
  • the shape of the cross-sectional profile at (11) is corrugated, such as a sawtooth, fox, or similar shape that facilitates the initial socketing of the hose (30).
  • the tail (11) is slightly tapered as a whole, that is, the wave peak is on a tapered surface with a certain small taper, and the end face is small in size and convenient for the sleeve (30).
  • the inner diameter of the tail portion of the inner tube (10) gradually decreases toward the tail end due to the shape of the tail portion.
  • 6 and 7 show the inner tube (10) of the other two embodiments, and the inner diameter of the inner tube (10) is unchanged.
  • the cross section of the tail portion (11) of the inner tube (10) is also corrugated, and the tail portion (11) as a whole is not required to have a corresponding taper, that is, the dimensions at the crests and troughs are equal, only the requirements
  • a small section at the end face should have a slope, and the size at the tail end (111) is the smallest, as shown in Figure 7, the size of the place (111) should be equal to or slightly smaller than the inner diameter of the hose, and the corrugated tail (11)
  • the size at the crest should be slightly larger than the inside diameter of the hose.
  • the front part (13) of the inner pipe (10) is an external thread, and it can be connected to other pipe fittings or directly connected with a nut joint.
  • the front end of the inner tube (10) can also be made into a curved tube shape according to the specific use occasion. As shown in Fig. 8, the front end of the inner wall of the outer tube (20) is provided with a thread (21), the rear end of the inner wall is provided with a groove (25), and a washer (60) is placed therein, and the inner diameter of the washer (60) is smaller than the outer tube (20) ) Aperture at the back end.
  • the outer tube (20) shown in FIG. 9 is a structure with a straight tube (24) extending at the tail.
  • the joint is set horizontally, so that the weight of the hose and the weight of the liquid ⁇ severely pull the hose body at the joint.
  • the extended straight pipe (24) plays an auxiliary supporting role.
  • the outer tube (20) and the inner tube (10) are connected to each other through a threaded fit. If material or processing technology permits, tight fit or other forms of fit can also be used.

Abstract

This invention relates to hose coupling comprising an inner pipe (10) and an outer pipe (20). The rear portion (11) of the inner pipe (10), having a rotary surface with different diameters in different cross sections, is coupled with the hose by cooperating with the conical inner surface of the rear portion of pipe (20).

Description

软管接头 技术领域  Technical Field
本发明涉及一种软管接头。 背景技术  The invention relates to a hose joint. Background technique
现实生活中许多设备需要连接软管，例如燃气热水器、太阳能 热水器、燃气灶等，而现有的连接方法则是将软管套接在硬质材料 制成的管头上，其实质是依靠软管的变形套接在管头上，由其变形 所产生的缩紧压力实现连接及密封的。 这种方式存在着如下缺陷： 其一是连接软管变形有一定范围，其变形过小将出现缩紧压力不足 并会出现泄漏现彖，给使用带来不安全隐患；其二是软管的内腔直 径一般要小于连接处的硬管外径，所以连接不方便，特别是在受到 空间限制的条件下，不易^软管套接在硬管上；其三是软管连接不 牢固，易脱落，这也是使用时所应禁止的。 发明内容  Many devices in real life need to connect hoses, such as gas water heaters, solar water heaters, gas stoves, etc., and the existing connection method is to sleeve the hose on a pipe head made of hard material, which essentially depends on the soft The deformation of the tube is sleeved on the tube head, and the tightening pressure generated by the deformation is connected and sealed. This method has the following defects: First, there is a certain range of deformation of the connecting hose. If the deformation is too small, there will be insufficient tightening pressure and leakage will occur, which will bring unsafe hidden dangers to use. The second is the inside of the hose. The diameter of the cavity is generally smaller than the outer diameter of the hard tube at the connection, so the connection is inconvenient, especially under the constraints of space, and the hose is not easy to be connected to the hard tube. This is also prohibited when used. Summary of the Invention
本发明的目的在于提供一种可方便、牢靠地使软管与其它管件 连接的接头。 为实现此目的，本发明的一种软管接头包括一内管和一外管， 外管可套接在内管上，内管的头部用于与待连接的管件相连，内管 的尾部用于让软管套接在其上，内管尾部为回转体，其外径向端面 处逐渐缩小，外管内壁的尾部内壁为锥状面，该锥状面直径尺寸向 尾部逐渐缩小，软管可置于内管的尾部且被外管挤压住。 内管可设有外螺紋，外管设有与之匹配的内螺紋。 使用时，先将外管穿套在软管上，再将软管挤套在外径较小的 内管尾部端头上，随后将外管通过配合螺紋拧到内管上，适度旋拧 外管，软管便被可靠地固定在内、外管之间。本发明具有以下积极效 果： 1. 通过内、外管的适度配合，使内、外管之间的软管四周受力 均匀，软管不易损伤开裂，又由于软管周围挤压均匀，将避免泄漏现 象的发生；2. 本发明连接安装时，通常只是适度拧紧外管，因此，不 仅操作方便，同时本发明可保 连接牢固，不会发生软管脱落现象。 附图概述 The purpose of the present invention is to provide a joint that can easily and reliably connect a hose with other pipe fittings. To achieve this, a hose joint of the present invention includes an inner pipe and an outer pipe. The outer pipe can be sleeved on the inner pipe. The head of the inner pipe is used to connect with the pipe to be connected. The tail of the inner pipe It is used to sleeve the hose on it. The tail of the inner tube is a slewing body, and its outer radial end surface is gradually reduced. The inner wall of the tail of the outer tube is a tapered surface. The diameter of the tapered surface is gradually reduced toward the tail. The tube can be placed at the tail of the inner tube and squeezed by the outer tube. The inner pipe may be provided with an external thread, and the outer pipe is provided with an internal thread matching the same. When using, first put the outer tube on the hose, then squeeze the hose onto the end of the inner tube with a smaller outer diameter, and then screw the outer tube to the inner tube through the mating thread, and moderately screw the outer tube , The hose is reliably fixed between the inner and outer pipes. The invention has the following positive effects: 1. Through proper cooperation of the inner and outer pipes, the hoses between the inner and outer pipes are uniformly stressed, the hoses are not easily damaged and cracked, and due to the uniform squeeze around the hoses, it will be avoided Leakage occurs; 2. When the present invention is connected and installed, the outer tube is usually only moderately tightened. Therefore, not only is the operation convenient, but the present invention can ensure the connection is secure and the hose does not fall off. Overview of the drawings
图 1是本发明装配结枸示意图；  FIG. 1 is a schematic diagram of an assembly knot of the present invention;
图 2、8、9是不同实施例的外管的结构示意图；  2, 8 and 9 are schematic structural diagrams of outer tubes in different embodiments;
图 3是图 2的左视图；  Figure 3 is a left side view of Figure 2;
图 4、5、6、7是不同实施例的内管的具体结构示意图。 本发明的最佳实施方式  Figures 4, 5, 6, and 7 are specific structural diagrams of the inner tube in different embodiments. Best Mode of the Invention
以下结合附图和实施例对本发明作进一步的详细说明。 如图 1所示，本发明软管接头由一内管（10)和一外管（20)組 成。 内管（10)的尾部（11)上套设有软管（30)，由于尾部（11)的形状 有利于其上所连的外管（20)拧紧时可适度压紧软管（30)，在内、外 管（10)、（20)均匀挤压之下，既可保证软管牢靠连接、又可确保更好 的密封性。 内管（10)前端设有活接螺母（40)，通过该螺母（40)与其 它水路或气路管件相连，螺母（40)内且位于内管（10)前端面处的垫 圈（50)压紧后起密封作用。 图 2是图 1中外管（20)的一种结构示意图，其内壁前端有内螺 紋（21)，该螺紋（21)与内管（10)上所设的外螺紋（12)相配合，其内 壁后端为锥状面（22)。 外管（20)前端外部（23)为六角形，如图 3所 示，该结构便于利用工具进行安装，也可以设置成手柄状结构，以便 手动安装。 图 4显示了图 1中的内管（10)，图 5显示了另一实施例的内管The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. As shown in FIG. 1, the hose joint of the present invention is composed of an inner pipe (10) and an outer pipe (20). A hose (30) is sleeved on the tail portion (11) of the inner tube (10). Because the shape of the tail portion (11) is favorable to the outer tube (20) connected thereto, the hose (30) can be tightly compressed when tightened Under the uniform squeezing of the inner and outer pipes (10) and (20), it can not only ensure a reliable connection of the hose, but also ensure better sealing. The front end of the inner tube (10) is provided with a union nut (40). The nut (40) is connected to other water or gas pipe fittings. The washer (50) inside the nut (40) and located at the front surface of the inner tube (10) It acts as a seal after compression. FIG. 2 is a schematic structural diagram of the outer tube (20) in FIG. 1. The front end of the inner wall is provided with an internal thread (21). The thread (21) is matched with the external thread (12) provided on the inner tube (10). The rear end of the inner wall is a tapered surface (22). The outer end (23) of the front end of the outer tube (20) is hexagonal. As shown in FIG. 3, this structure is convenient for installation with a tool, and can also be set into a handle-like structure for manual installation. FIG. 4 shows the inner tube (10) in FIG. 1, and FIG. 5 shows the inner tube of another embodiment.
( 10)。 图 4、5中，内管（10)的外管体上设有外螺紋（12)，与外管 (20)前端的内螺紋（21)相配合，其尾部（11)为变径回转面，该回转 面是为了确保图 1中的与外管（20)的尾部内壁锥状面（22)配合时， 图 1中的软管（30)受到四周均匀的压力作用，如图 4、5所示，尾部(10). In Figs. 4 and 5, the outer pipe body of the inner pipe (10) is provided with an external thread (12), which cooperates with the internal thread (21) at the front end of the outer pipe (20), and its tail (11) is a reducing surface The turning surface is to ensure that the hose (30) in FIG. 1 receives uniform pressure from around when it cooperates with the tapered surface (22) of the inner wall of the tail of the outer tube (20) in FIG. 1, as shown in FIGS. Shown, tail
(11)处的截面轮廓形状为波紋形，如锯齿、狐形或类似的便于软管 (30)初步套接的形状。在图 4、5中，尾部（11)处整体上略呈带锥度， 即波峰处在具有一定小锥度的锥面上，端面处尺寸较小且便于软管 (30)的套接。 图 4、5中，内管（10)的尾部内径因其尾部形状也朝尾 端逐渐缩小。 图 6和图 7示出了另外两种实施例的内管（10)，内管（10)的内 径不变。在图 6、7中，内管（10)的尾部（11)的截面亦是波紋状，尾部 (11)整体上并不要求必须具备相应的锥度，即波峰、波谷处的尺寸 相等，只是要求端面处的一小段应具有斜度，且尾端（111)处的尺寸 最小，如图 7所示，该处（111)的尺寸应等于或略小于软管内径，波 紋状尾部（11)的波峰处的尺寸应略大于软管内径。 在图 7中，内管 (10)前部（13)处是外螺紋，它可用螺母接头与其它管件相连或直接 相连。 内管（10)的前端根据具体的使用场合也可制成弯管形。 如图 8所示，外管（20)内壁前端设有螺紋（21)，内壁后端设有 凹槽（25)，其内放置垫圈（60)，垫圈（60)的内径小于外管（20)后端 的孔径。 当图 8中的外管（20)与内管（10)配合时，软管（30)是靠所 设的橡胶垫圈（60)均匀挤压实现可靠固定和密封的。 图 9所示的外管（20)是尾部延长一段直管（24)的结构，直管 (24)的内径略大于软管直径，因为在实际应用中也会出现软管较长 的情况，其接头又是水平方向设置，这样软管自重及液体重量 ^严 重斜拉接头处的软管体，此时延长的直管（24)起到辅助支撑软管的 作用。 在以上实施例中，外管（20)和内管（ 10)之间通过螺紋配合相互 连接在一起。 如果材料或加工工艺许可，也可以采用紧配合或其它 形式的配合。 The shape of the cross-sectional profile at (11) is corrugated, such as a sawtooth, fox, or similar shape that facilitates the initial socketing of the hose (30). In Figs. 4 and 5, the tail (11) is slightly tapered as a whole, that is, the wave peak is on a tapered surface with a certain small taper, and the end face is small in size and convenient for the sleeve (30). In Figs. 4 and 5, the inner diameter of the tail portion of the inner tube (10) gradually decreases toward the tail end due to the shape of the tail portion. 6 and 7 show the inner tube (10) of the other two embodiments, and the inner diameter of the inner tube (10) is unchanged. In Figures 6 and 7, the cross section of the tail portion (11) of the inner tube (10) is also corrugated, and the tail portion (11) as a whole is not required to have a corresponding taper, that is, the dimensions at the crests and troughs are equal, only the requirements A small section at the end face should have a slope, and the size at the tail end (111) is the smallest, as shown in Figure 7, the size of the place (111) should be equal to or slightly smaller than the inner diameter of the hose, and the corrugated tail (11) The size at the crest should be slightly larger than the inside diameter of the hose. In FIG. 7, the front part (13) of the inner pipe (10) is an external thread, and it can be connected to other pipe fittings or directly connected with a nut joint. The front end of the inner tube (10) can also be made into a curved tube shape according to the specific use occasion. As shown in Fig. 8, the front end of the inner wall of the outer tube (20) is provided with a thread (21), the rear end of the inner wall is provided with a groove (25), and a washer (60) is placed therein, and the inner diameter of the washer (60) is smaller than the outer tube (20) ) Aperture at the back end. When the outer tube (20) and the inner tube (10) in FIG. 8 are matched, the hose (30) is reliably pressed and sealed by the rubber washer (60) evenly pressed. The outer tube (20) shown in FIG. 9 is a structure with a straight tube (24) extending at the tail. In this case, the joint is set horizontally, so that the weight of the hose and the weight of the liquid ^ severely pull the hose body at the joint. At this time, the extended straight pipe (24) plays an auxiliary supporting role. In the above embodiment, the outer tube (20) and the inner tube (10) are connected to each other through a threaded fit. If material or processing technology permits, tight fit or other forms of fit can also be used.

Claims

权利要求 Rights request
1. 一种软管接头，其特征在于，所述软管接头包括一内管 αο) 和一外管（20)，外管（20)可套接在内管（10)上，所述内管（10)具有 一用于与所述其它管件相连的头部和一用于与软管相连的尾部 ( 11)，所述尾部（11)的外径尺寸向尾端逐渐缩小；所述外管（20)具 有一头部和一尾部，所述头部可与所述内管（10)的头部套接并固 定，所述尾部的内壁为锥形，其内径朝尾端逐渐缩小。 A hose joint, characterized in that the hose joint comprises an inner pipe αο) and an outer pipe (20), the outer pipe (20) can be sleeved on the inner pipe (10), the inner pipe The tube (10) has a head for connecting with the other pipe fittings and a tail (11) for connecting with a hose. The outer diameter of the tail (11) gradually decreases toward the tail; the outer The tube (20) has a head and a tail, the head can be sleeved and fixed with the head of the inner tube (10), the inner wall of the tail is tapered, and its inner diameter gradually decreases towards the tail end.
2. 一种软管接头，其特征在于：内管（10)上联接有外管（20)， 内管（10)的尾部（11)为回转面且其截面尺寸向端面处逐渐缩小，外 管（20)内壁的尾部为锥状回转面（22)，两者相互配合并将尾部（11) 处套接的软管（30)固定在其间。 2. A hose joint, characterized in that an inner tube (10) is connected to an outer tube (20), a tail portion (11) of the inner tube (10) is a turning surface and its cross-sectional dimension is gradually reduced toward the end surface, and the outer The tail of the inner wall of the tube (20) is a conical turning surface (22), and the two cooperate with each other and fix the hose (30) sleeved at the tail (11) between them.
3. 根据权利要求 2所述的软管接头，其特征在于：内管（10)的 管体上设有外螺紋（12)，该外螺紋（12)与外管（20)内壁前端所设的 内螺紋（21)配合联接，所述内管（10)的尾部（11)为截面呈波紋状的 回转面，波峰连接线具有斜度。 3. The hose joint according to claim 2, characterized in that the pipe body of the inner pipe (10) is provided with an external thread (12), the external thread (12) and a front end of an inner wall of the outer pipe (20) The inner thread (21) is cooperatively connected, the tail (11) of the inner pipe (10) is a turning surface with a corrugated cross section, and the crest connection line has a slope.
4. 根据权利要求 2所述的软管接头，其特征在于：所述内管 (10)的外管体上设有外螺紋（12)，该外螺紋（12)与外管（20)内壁前 端所设的内螺紋（21)配合联接，所述内管（10)的尾部（11)为截面呈 波紋状的回转面，波峰、波谷处的尺寸相等。 4. The hose joint according to claim 2, characterized in that the outer pipe body of the inner pipe (10) is provided with an external thread (12), the external thread (12) and an inner wall of the outer pipe (20) An internal thread (21) provided at the front end is cooperatively connected, and a tail portion (11) of the inner tube (10) is a corrugated turning surface with a cross section, and the dimensions at the crests and troughs are equal.
5. —种软管接头，其特征在于：内管（10)上联接有外管（20)， 内管（10)的尾部（11)为回转面且截面尺寸向端面处逐渐缩小，外管 (20)内壁后端处设有凹槽（25)，其内设置胶垫圈（60)，垫圈（60)的 内径小于内壁后端的孔径。 5. A hose joint, characterized in that the inner pipe (10) is connected to the outer pipe (20), the tail (11) of the inner pipe (10) is a turning surface and the cross-sectional size is gradually reduced toward the end surface, and the outer pipe (20) A groove (25) is provided at the rear end of the inner wall, and a rubber washer (60) is arranged therein, and the inner diameter of the washer (60) is smaller than the hole diameter at the rear end of the inner wall.
PCT/CN1997/000081 1997-04-07 1997-08-14 Hose coupling WO1998045639A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU38457/97A AU3845797A (en) 1997-04-07 1997-08-14 Hose coupling

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN97235687U CN2280194Y (en) 1997-04-07 1997-04-07 Joint for hose
CN97235687.8 1997-04-07

Publications (1)

Publication Number Publication Date
WO1998045639A1 true WO1998045639A1 (en) 1998-10-15

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ID=5204819

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN1997/000081 WO1998045639A1 (en) 1997-04-07 1997-08-14 Hose coupling

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Country Link
CN (1) CN2280194Y (en)
AU (1) AU3845797A (en)
WO (1) WO1998045639A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2906597A1 (en) * 2006-10-02 2008-04-04 Elyssa Soc Par Actions Simplif Flexible plastic pipe coupler for e.g. building, has annular bands with radial section, and locking wall of pipe`s end against housing to retain pipe in coupler while providing sealing between pipe and body due to mounting of sleeve on body
WO2008041224A1 (en) * 2006-10-04 2008-04-10 Netafim Ltd Coupling

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104847944A (en) * 2015-04-17 2015-08-19 泰州市成成铸铜有限公司 Novel anti-corrosion ship steel casting piece stop valve
CN106439291A (en) * 2016-10-19 2017-02-22 珠海格力电器股份有限公司 Water purifier and water pipe connector thereof
CN106439328A (en) * 2016-11-19 2017-02-22 张红伟 Sealing ring mounting structure of water pipe connector and mounting method of sealing ring mounting structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833246A (en) * 1973-08-06 1974-09-03 Apache Corp Coupling for plastic conduit
US4124234A (en) * 1977-05-19 1978-11-07 Parker-Hannifin Corporation Hose coupling
US4278279A (en) * 1979-06-07 1981-07-14 Zimmerman Harry M Cam-lock fitting
US4437689A (en) * 1981-04-03 1984-03-20 Titeflex Corporation Reusable end fitting
US5498043A (en) * 1995-01-25 1996-03-12 Plastic Specialties And Technologies, Inc. Hose fitting having ferrule anti-rotation ratchet teeth

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833246A (en) * 1973-08-06 1974-09-03 Apache Corp Coupling for plastic conduit
US4124234A (en) * 1977-05-19 1978-11-07 Parker-Hannifin Corporation Hose coupling
US4278279A (en) * 1979-06-07 1981-07-14 Zimmerman Harry M Cam-lock fitting
US4437689A (en) * 1981-04-03 1984-03-20 Titeflex Corporation Reusable end fitting
US5498043A (en) * 1995-01-25 1996-03-12 Plastic Specialties And Technologies, Inc. Hose fitting having ferrule anti-rotation ratchet teeth

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2906597A1 (en) * 2006-10-02 2008-04-04 Elyssa Soc Par Actions Simplif Flexible plastic pipe coupler for e.g. building, has annular bands with radial section, and locking wall of pipe`s end against housing to retain pipe in coupler while providing sealing between pipe and body due to mounting of sleeve on body
EP1909015A1 (en) 2006-10-02 2008-04-09 Elyssa Joint for connecting flexible pipes
WO2008041224A1 (en) * 2006-10-04 2008-04-10 Netafim Ltd Coupling

Also Published As

Publication number Publication date
AU3845797A (en) 1998-10-30
CN2280194Y (en) 1998-04-29

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