WO2021218655A1 - 管中管接头固定装置 - Google Patents

管中管接头固定装置 Download PDF

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Publication number
WO2021218655A1
WO2021218655A1 PCT/CN2021/087643 CN2021087643W WO2021218655A1 WO 2021218655 A1 WO2021218655 A1 WO 2021218655A1 CN 2021087643 W CN2021087643 W CN 2021087643W WO 2021218655 A1 WO2021218655 A1 WO 2021218655A1
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WIPO (PCT)
Prior art keywords
pipe
pipe joint
joint
inner pipe
sleeve
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Ceased
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PCT/CN2021/087643
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English (en)
French (fr)
Inventor
邹志龙
陈文兴
谢艺聪
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Xiamen Solex High Tech Industries Co Ltd
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Xiamen Solex High Tech Industries Co Ltd
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Publication of WO2021218655A1 publication Critical patent/WO2021218655A1/zh
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Ceased legal-status Critical Current

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    • 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
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/005—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for concentric pipes
    • 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
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies

Definitions

  • the invention relates to the technical field of kitchen and bathroom, in particular to a pipe-in-pipe pipe joint fixing device.
  • the pipe-in-pipe pipe joint fixing device includes an inner pipe and an outer pipe sleeved outside the inner pipe.
  • the inner pipe constitutes an inner passage
  • the inner pipe and the outer pipe constitute an outer passage.
  • Existing fixing devices such as: CN104295816B, a water inlet pipe, including a mother pipe and a sub-pipe sleeved in the mother pipe.
  • the inner cavity of the sub-pipe forms a first channel for conveying the first liquid.
  • a second channel for conveying the second liquid is formed, the end of the mother pipe is sleeved with a connecting sleeve, a valve core is provided in the front end of the mother pipe in the connecting sleeve, and a middle hole is opened in the middle of the valve core.
  • the pipe passes through the middle hole of the valve core and is sealed and matched with the valve core, and the peripheral part of the valve core is provided with a water outlet communicating with the second channel.
  • a pipe-in-pipe quick connection structure including an inner pipe fixing ring and an outer pipe connecting ring, the inner pipe fixing ring firmly fixes the inner pipe and the joint, the inner pipe is set in the outer pipe, and the end of the outer pipe is inserted
  • a joint connected with the water inlet or outlet is provided
  • the outer pipe connecting ring is sleeved on the outer peripheral wall of the joint and connected with the water inlet or the outlet, and the outer pipe connecting ring is provided with a positioning protrusion on the outer circumference side
  • the outer pipe connecting ring on both sides of the positioning convex portion is symmetrically provided with fixing convex pins
  • the water inlet or outlet is provided with a positioning guide groove that matches the positioning convex portion
  • the water inlet or outlet is provided
  • the end of the outer tube is sleeved with a copper sleeve
  • the joint is provided with a sealing groove
  • the inner pipe (sub-pipe) is directly connected to the outside (such as a water supply source or a water outlet terminal), which is inconvenient to connect; Relative to the outer tube, it can move and has a large degree of freedom. On the one hand, it is inconvenient to install and connect; on the other hand, it needs to be disassembled when changing and washing, and it may become loose after a long time, leading to the risk of water leakage.
  • the present invention provides a pipe-in-pipe pipe joint fixing device, which overcomes the shortcomings of the pipe-in-pipe pipe joint fixing device in the background art.
  • the pipe joint fixing device in the pipe includes an inner pipe and an outer pipe sleeved outside the inner pipe.
  • the inner pipe constitutes an inner passage
  • the inner pipe and the outer pipe constitute an outer passage; it also includes a fixing mechanism and a connecting sleeve attached to the outer pipe;
  • the fixing mechanism includes an inner pipe joint unit, an outer pipe joint and a locking mechanism; the inner pipe joint unit is fixedly mounted on the inner pipe port and the inner pipe joint unit is connected to the inner passage; the outer pipe joint is fixedly mounted on the outer pipe port, and the inner pipe
  • the pipe joint unit and the outer pipe joint are fixed together by a locking mechanism; the fixing mechanism is also provided with a communication path which connects the cavity and the outer path between the connecting sleeve and the fixing mechanism.
  • the inner pipe joint unit includes an inner pipe joint and an inner pipe sleeve, one end of the inner pipe joint is inserted into the inner pipe port to realize a fixed installation, and one end of the inner pipe sleeve is tightly sleeved on the extension of the inner pipe joint
  • the other end of the inner tube envelope is tightly sleeved on the outer peripheral wall of the end of the inner tube.
  • the outer tube joint has a locking section and a connecting section, the locking section is inserted into the outer tube port and fixed to the inner wall of the outer tube port, and there is a positioning surface between the connecting section and the locking section, the positioning surface Closely connected to the end surface of the outer tube.
  • it further includes a first buckle
  • the outer peripheral wall of the outer pipe joint is recessed with a ring groove
  • the first buckle is sleeved in the ring groove of the outer pipe joint and has a protruding part that extends out of the outer pipe joint
  • the connecting sleeve is provided with a limiting surface, and the protruding part is matched with the limiting surface.
  • the inner pipe joint unit includes an inner pipe joint, one end of the inner pipe joint is inserted into the inner pipe port to realize a fixed installation, and the part of the inner pipe joint protruding out of the inner pipe port is provided with a portion facing the inner pipe Mating surface;
  • the locking mechanism includes a second buckle, the second buckle sleeves the inner pipe joint and is positioned between the end surface of the outer pipe joint and the mating surface.
  • the second buckle includes a C-shaped buckle
  • the C-shaped buckle has a gap
  • the gap forms the aforementioned communication path or part of the communication path.
  • the second buckle end surface is recessed with a groove penetrating inside and outside, and the groove constitutes the aforementioned communicating path or part of the communicating path.
  • the inner pipe joint unit includes an inner pipe sleeve, one end of the inner pipe sleeve is tightly sleeved on the part of the inner pipe joint protruding out of the inner pipe port, and the other end of the inner pipe sleeve is tightly sleeved on the end of the inner pipe
  • the second buckle surrounds the inner tube envelope.
  • the inner pipe joint unit includes an inner pipe joint and an inner joint.
  • the joint is provided with a convex ring
  • the locking mechanism includes a locking sleeve
  • the inner joint is located in the port of the outer pipe joint
  • the convex ring abuts against the end face of the outer pipe joint
  • the locking sleeve is fixedly mounted outside the outer pipe joint. The locking sleeve and the outer pipe joint are locked so that the end face of the locking sleeve and the outer pipe joint tightens the locking convex ring.
  • the connecting section is provided with a through hole penetrating inside and outside, and the through hole constitutes the above-mentioned communication path.
  • the locking sleeve is protrudingly provided with a flange, and the flange and the outer pipe joint end face the locking convex ring by locking the locking sleeve and the outer pipe joint.
  • the inner pipe joint unit includes an inner pipe sleeve, one end of the inner pipe sleeve is tightly sleeved on the part of the inner pipe joint protruding out of the inner pipe port, and the other end of the inner pipe sleeve is tightly sleeved on the end of the inner pipe
  • the outer wall, the outer pipe joint surrounds the inner pipe envelope.
  • the outer pipe joint and the inner pipe joint unit are locked and fixed together by the locking structure to form a whole.
  • the inner pipe and the outer pipe will not move relative to each other. As a whole, they cooperate with the external attachment or shower and other parts. There is no need to disassemble the outer pipe during assembly.
  • the pipe joint and inner pipe joint unit are easy to assemble and disassemble, and have good airtightness.
  • Fig. 1 is a schematic cross-sectional view of a fixing device according to the first embodiment.
  • Fig. 2 is a three-dimensional exploded schematic view of the fixing device of the first embodiment.
  • Fig. 3 is a schematic structural diagram of an application example of the fixing device in the first embodiment.
  • Fig. 4 is a schematic partial cross-sectional view at A in Fig. 3.
  • Fig. 5 is a schematic cross-sectional view of the fixing device of the second embodiment.
  • Fig. 6 is a three-dimensional exploded schematic view of the fixing device of the second embodiment.
  • Fig. 7 is a perspective schematic view of a second buckle of the fixing device of the second embodiment.
  • the pipe-in-pipe joint fixing device please refer to Figure 1 and Figure 2, including the pipe-in-pipe, the pipe-in-pipe includes an inner pipe 1 and an outer pipe 2 sleeved outside the inner pipe 1.
  • the inner pipe 1 forms an inner passage 11
  • the inner tube 1 and the outer tube 2 form an outer passage 21, and the inner passage 11 and the outer passage 21 are separated from the inner and outer sides by the inner tube 1.
  • the pipe-in-pipe pipe joint fixing device further includes a fixing mechanism 3 and a connecting sleeve 4 attached to the outer pipe 2.
  • the fixing mechanism 3 includes an inner pipe joint unit 31, an outer pipe joint 32 and a locking mechanism 33; the inner pipe joint unit 31 is fixedly mounted on the port of the inner pipe 1 and the inner pipe joint unit 31 is connected to the inner passage 11; the outer pipe joint 32 is fixedly mounted on the port of the outer tube 2.
  • the inner tube joint unit 31 and the outer tube joint 32 are fixed together by a locking mechanism 33; the fixing mechanism 3 is also provided with a communication path 34 which is connected to the connecting sleeve 4
  • the outer pipe joint 32 has a locking section 321 and a connecting section 322; the locking section 321 is inserted into the 2 port of the outer tube and fixed to the inner wall of the outer tube 2 port, for example, the outer wall of the locking section 321 is provided with inverted teeth or threads or barbs Or buckle, etc., through these structures and the outer tube 2 ports tightly fit to achieve the fixed installation, the locking section 321 and the outer wall of the inner tube leave a gap between the water flow; the connecting section 322 part is opposite to the locking section
  • the 321 protrudes outward to form a positioning surface 323 facing the outer tube between the locking section and the connecting section.
  • the positioning surface 323 abuts against the end surface of the outer tube 2 so as to lock and fix the outer tube joint 32 and the outer tube 2.
  • a sealing ring 325 is provided outside the outer pipe joint 32.
  • the inner pipe joint unit 31 includes an inner pipe joint 311 and an inner joint 312.
  • One end of the inner pipe joint 311 is inserted into the port of the inner pipe 1 to realize a fixed installation.
  • the fixed installation is like a fixing structure of an outer pipe joint and an outer pipe;
  • the joint 312 is fixedly mounted on the other end of the inner pipe joint 311.
  • the fixing is like a threaded connection to lock and fix the inner pipe 1, the inner pipe joint 311, and the inner joint 312, and the inner joint, the inner pipe joint, and the inner water circuit.
  • the inner joint 312 is located in the 32 port of the outer pipe joint, and the outer peripheral wall of the inner joint 312 is convexly provided with a convex ring 3121.
  • the locking mechanism 33 includes a locking sleeve 331.
  • the end periphery of the locking sleeve 331 extends inwardly into an inwardly convex flange 332.
  • the locking sleeve 331 is sleeved on the inner joint 312 and locked to the outer pipe joint 32.
  • the convex ring 3121 is located between the end surface of the outer pipe joint 32 and the flange 332, and the flange and the end surface of the outer pipe joint are locked to the locking convex ring by locking, so as to lock and fix the outer pipe joint 32,
  • the inner pipe joint 311 and the inner joint 312, the inner pipe and the outer pipe will not move, which is convenient for the overall assembly and connection, and does not need to be disassembled during replacement.
  • the connecting section 322 is provided with a through hole penetrating inside and outside, and the through hole constitutes the aforementioned communication path 34. According to requirements, the locking mechanism can be directly arranged between the outer pipe joint and the inner joint such as threaded connection or other locking connections.
  • the inner pipe joint unit 31 includes an inner pipe sleeve 313.
  • One end of the inner pipe sleeve 313 is tightly sleeved on the part of the inner pipe joint 311 that extends outside the port of the inner pipe 1, and the other end of the inner pipe sleeve 313 is tightly sleeved on the inner pipe 1.
  • the outer pipe joint 311 surrounds the inner pipe sleeve 313.
  • the inner pipe sleeve 313 further prevents water flowing from the outer passage from flowing into the inner passage, and The water flowing to the inner passage flows into the outer passage, and the inner pipe and the outer pipe are independent of each other and do not affect each other.
  • the outer peripheral wall of the inner pipe joint 311 is also projected with a second convex ring 3111.
  • the inner joint 312 is locked outside the inner pipe joint 311 and the end abuts against the first end surface of the second convex ring 3111.
  • One end of the sleeve 313 is tightly sleeved on the part of the inner pipe joint 311 protruding out of the inner pipe port and is axially positioned by the second end surface of the second convex ring.
  • the pipe-in-pipe pipe joint fixing device further includes a first buckle 5, the outer peripheral wall of the outer pipe joint 32 is recessed with a ring groove 324, and the first buckle 5 is sleeved in the ring groove 324 of the outer pipe joint 32 and has an extension
  • the protruding part outside the outer pipe joint, the connecting sleeve 4 has a horn-shaped sleeve structure and is provided with a limit surface 42 inside, and the protruding part matches the limit surface.
  • the horn sleeve is provided with an internal thread that can be screwed to the outside, and the first buckle is used to realize the limit and lock during the screw connection.
  • the first buckle 5 is like a C-shaped buckle.
  • the outer pipe joint 32, the inner pipe joint 311, and the inner joint 312 are locked and fixed together to form a whole. It is easy to assemble when the parts are matched.
  • FIGS 3 and 4 are structural diagrams of an application example of the above-mentioned fixing device.
  • the application example is a kitchen pull-out faucet.
  • the pull-out faucet includes a faucet body 61, a main control mechanism 62 provided on the faucet body 61 and a water pipe 65.
  • the main control mechanism 62 is connected to the cold water pipe 63, the hot water pipe 64 and the mixing water path to control the water temperature, flow and switch through the handle of the main control mechanism 62;
  • the faucet body 61 is also connected to a water purification water path; one end of the water passing pipe 65 is connected to the faucet The other end of the body 61 passes through the faucet body 61 and is connected to the water outlet terminal 66.
  • the water pipe 65 adopts the above-mentioned pipe-in-pipe structure; the connection between the water pipe 65 and the water outlet terminal 66 adopts the above-mentioned fixing device.
  • the connection between 65 and the main control mechanism 62 adopts the above-mentioned fixing device; the inner passage 11 and the outer passage 21 of the pipe-in-pipe are connected to the water purification water passage and the mixing water passage respectively, or the inner passage 11 and the outer passage 21 are respectively connected Mixed waterway and water purification waterway.
  • the water outlet terminal is provided with a switch that can control the water outlet terminal waterway corresponding to the water purification waterway.
  • the pipe joint fixing device in the pipe is different from the first embodiment in that: please refer to Fig. 5, Fig. 6 and Fig. 7.
  • the inner pipe joint unit 31 includes an inner pipe joint 311, and one end of the inner pipe joint 311 is inserted into the inner pipe 1.
  • the inner pipe joint 311 is provided with a mating surface 3112 facing the inner pipe 1 at the part of the inner pipe joint 311 protruding out of the inner pipe port to realize a fixed installation;
  • the locking mechanism 33 includes a second buckle 333, and the second buckle 333
  • the inner pipe joint 311 is sleeved outside and is fitted and positioned between the end surface of the outer pipe joint 32 and the mating surface 3112.
  • the inner pipe joint and the outer pipe joint are restricted by the second buckle 333 to avoid relative movement of the two and avoid relative movement of the outer pipe and the inner pipe. Moreover, the second buckle will not squeeze the inner pipe and will not affect flow.
  • the second buckle 333 includes a C-shaped buckle, the C-shaped buckle has a notch 3331, and an end surface of the second buckle 333 is recessed with a groove 3332 penetrating inside and outside.
  • the notch 3331 and the groove 3332 constitute the aforementioned communication path 34.
  • the mating surface 3112 also axially locates one end of the inner tube envelope 313.
  • the second buckle 333 not only avoids relative movement of the outer tube and the inner tube, but also forms a water passage, which simplifies the structure and has a compact structure.
  • the outer pipe joint and the inner pipe joint unit are locked and fixed together to form a whole, and the inner and outer pipes will not move relative to each other.
  • the outer pipe joint and inner pipe joint unit are disassembled, which is convenient for assembly and disassembly, and has good sealing performance.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

管中管接头固定装置，包括内管（1）、外管（2）、固定机构（3）和装接在外管（2）的连接套（4），内管（1）内构成内通路（11），内管（1）和外管（2）间构成外通路（21）；固定机构（3）包括内管接头单元（31）、外管接头（32）和锁接机构（33）；内管接头单元（31）固装在内管（1）端口且内管接头单元（31）接通内通路（11）；外管接头（32）固装在外管（2）端口，内管接头单元（31）和外管接头（32）通过锁接机构（33）固装在一起；固定机构（3）还设有连通路（34），连通路（34）接通连接套（4）与固定机构（3）间的腔体（41）和外通路（21）。

Description

管中管接头固定装置 技术领域
本发明涉及厨卫技术领域，尤其涉及管中管接头固定装置。
背景技术
该管中管接头固定装置包括内管和套在内管外的外管，该内管内构成内通路，该内管和外管间构成外通路。现有的固定装置，如：CN104295816B，一种进水管，包括母管和套设在母管内的子管，子管内腔形成用于输送第一液体的第一通道，子管与母管之间形成用于输送第二液体的第二通道，所述母管端部外周套设有连接套，所述连接套内位于母管前端设有阀芯，阀芯中部开设有中孔，所述子管穿过阀芯中孔并与其密封配合，阀芯周部开设有与第二通道相连通的出水口。或，如：CN205013928U，一种管中管快接结构，包括内管固定环和外管连接环，所述内管固定环将内管与接头固定牢固，内管设置在外管内，外管末端插设有与进水件或出水件连接的接头，所述外管连接环套设在接头外周壁上并与进水件或出水件相连接，所述外管连接环外周侧设置有一定位凸部，定位凸部两侧的外管连接环外周侧对称设置有固定凸销，所述进水件或出水件上设置有与定位凸部相配合的定位导向槽，进水件或出水件上设置有与固定凸销相配合的定位固定孔，所述外管末端套设有铜封套，所述接头上设置有密封槽，所述密封槽上设置有密封圈。上述两现有技术存在有如下不足：其一，内管(子管)直接装接外界(如供水源或出水终端)，连接不便；其二，内管和外管是独立分开的，内管相对外管可以活动，自由度大，一方面，装接不便；另一方面，换洗时需要拆卸，时间久了可能会有松动，导致出现漏水的风险。
发明内容
本发明提供了管中管接头固定装置，其克服了背景技术中管中管接头固定装置所存在的不足。
本发明解决其技术问题的所采用的技术方案是：
管中管接头固定装置，包括内管和套在内管外的外管，该内管内构成内通路，该内管和外管间构成外通路；还包括固定机构和装接在外管的连接套；该固定机构包括内管接头单元、外管接头和锁接机构；该内管接头单元固装在内管端口且内管 接头单元接通内通路；该外管接头固装在外管端口，该内管接头单元和外管接头通过锁接机构固装在一起；该固定机构还设有连通路，该连通路接通该连接套与固定机构间的腔体和外通路。
一实施例之中：该内管接头单元包括内管接头和内管封套，该内管接头一端插入内管端口内以实现固装，该内管封套一端紧套在该内管接头之伸出内管端口外的部分，该内管封套另一端紧套在内管末端外周壁。
一实施例之中：该外管接头具有锁接段和连接段，该锁接段插入外管端口内且固接在外管端口内壁，该连接段和锁接段间具有定位面，该定位面紧靠接在外管端面。
一实施例之中：还包括第一卡扣，该外管接头外周壁凹设有环槽，该第一卡扣套接在外管接头的环槽内且具有伸出外管接头外的凸出部分，该连接套内设有限位面，该凸出部分和限位面相配合。
一实施例之中：该内管接头单元包括内管接头，该内管接头一端插入内管端口内以实现固装，该内管接头之伸出内管端口外的部分设有朝向内管的配合面；该锁接机构包括第二卡扣，该第二卡扣套接内管接头外且定位于外管接头端面和配合面间。
一实施例之中：该第二卡扣包括C形扣，该C形扣具有缺口，该缺口构成上述的连通路或连通路的部分。
一实施例之中：该第二卡扣端面凹设有内外贯穿的凹槽，该凹槽构成上述的连通路或连通路的部分。
一实施例之中：该内管接头单元包括内管封套，该内管封套一端紧套在该内管接头之伸出内管端口外的部分，该内管封套另一端紧套在内管末端外壁，该第二卡扣包围在内管封套外。
一实施例之中：该内管接头单元包括内管接头和内接头，该内管接头一端插入内管端口内以实现固装，该内接头固装在内管接头之另一端且该内管接头设有凸环，该锁接机构包括锁紧套，该内接头位于该外管接头端口内，该凸环顶抵在外管接头末端面且该锁紧套固装在外管接头外，通过锁紧套和外管接头的锁接使锁紧套和外管接头末端面紧锁凸环。
一实施例之中：该连接段设有内外贯穿的贯穿孔，该贯穿孔构成上述的连通路。
一实施例之中：该锁紧套内凸设有凸缘，通过锁紧套和外管接头的锁接使凸缘 和外管接头末端面紧锁凸环。
一实施例之中：该内管接头单元包括内管封套，该内管封套一端紧套在该内管接头之伸出内管端口外的部分，该内管封套另一端紧套在内管末端外壁，该外管接头包围在内管封套外。
本技术方案与背景技术相比，它具有如下优点：
外管接头和内管接头单元通过锁接结构锁接固定在一起构成整体，内管与外管不会相对移动，它们作为一个整体与外界装接或花洒等零件配合，装配时无需拆卸外管接头和内管接头单元，装拆方便，密封性好。
附图说明
下面结合附图和具体实施方式对本发明作进一步说明。
图1是实施例一固定装置的剖面示意图。
图2是实施例一固定装置的立体分解示意图。
图3是实施例一固定装置的应用实例的结构示意图。
图4是图3的A处局部剖面示意图。
图5是实施例二固定装置的剖面示意图。
图6是实施例二固定装置的立体分解示意图。
图7是实施例二固定装置的第二卡扣的立体示意图。
标号说明：内管1、外管2、内通路11、外通路21；固定机构3、内管接头单元31、外管接头32、锁接机构33、连通路34；内管接头311、第二凸环3111、内接头312、内管封套313；锁接段321、连接段322、凸环3121、定位面323、环槽324；锁紧套331、凸缘332；连接套4、腔体41、限位面42；第一卡扣5。
配合面3112、第二卡扣333、缺口3331、凹槽3332。
具体实施方式
实施例一
管中管接头固定装置，请查阅图1和图2，包括管中管，该管中管包括内管1和套在内管1外的外管2，该内管1内构成内通路11，该内管1和外管2间构成外通路21，该内通路11和外通路21通过内管1内外隔离。
该管中管接头固定装置，还包括固定机构3和装接在外管2的连接套4。该固定机构3包括内管接头单元31、外管接头32和锁接机构33；该内管接头单元31固装在内管1端口且内管接头单元31接通内通路11；该外管接头32固装在外管2 端口，该内管接头单元31和外管接头32通过锁接机构33固装在一起；该固定机构3还设有连通路34，该连通路34接通该连接套4与固定机构3间的腔体41和外通路21。
该外管接头32具有锁接段321和连接段322；该锁接段321插入外管2端口内且固接在外管2端口内壁，例如锁接段321外周壁设倒齿或螺纹或倒钩或卡扣等，通过该些结构和外管2端口紧配合实现固装，该锁接段321内壁和内管外壁间留有间隙，以供水流流过；该连接段322部分相对锁接段321外凸以在锁接段和连接段间形成朝向外管的定位面323，该定位面323紧靠接在外管2端面，以此锁接固定外管接头32和外管2。而且，该外管接头32外设有密封圈325。
该内管接头单元31包括内管接头311和内接头312，该内管接头311一端插入内管1端口内以实现固装，该固装如外管接头和外管的固装结构；该内接头312固装在内管接头311之另一端，该固装如螺纹连接，以此锁接固定内管1、内管接头311和内接头312，及，内接头、内管接头、内水路的接通。该内接头312位于该外管接头32端口内，该内接头312外周壁凸设有凸环3121。
该锁接机构33包括锁紧套331，该锁紧套331末端周缘朝内延伸成内凸的凸缘332，该锁紧套331套接内接头312且锁接在外管接头32，该锁接如螺纹连接；该凸环3121介于该外管接头32末端面和凸缘332间，通过锁接使凸缘和外管接头末端面紧锁凸环，以此锁接固定外管接头32、内管接头311和内接头312，内管与外管不会发生窜动，方便整体装接，更换时无需拆卸。该连接段322设有内外贯穿的贯穿孔，该贯穿孔构成上述的连通路34。根据需要，该锁接机构可直接设置在外管接头和内接头间如螺纹连接或其它锁接。
该内管接头单元31包括内管封套313，该内管封套313一端紧套在该内管接头311之伸出内管1端口外的部分，该内管封套313另一端紧套在内管1末端外壁，该外管接头311包围在内管封套313外，该外管接头311和内管封套313间留有间隙，通过内管封套313进一步避免流向外通路的水流流入内通路，及，避免流向内通路的水流流入外通路，内管与外管水路相互独立，互不影响。
根据需要，该内管接头311外周壁还凸设有第二凸环3111，该内接头312锁接在内管接头311外且末端顶抵在第二凸环3111第一端面处，该内管封套313一端紧套在该内管接头311之伸出内管端口外的部分且通过第二凸环第二端面轴向定位。
该管中管接头固定装置，还包括第一卡扣5，该外管接头32外周壁凹设有环槽 324，该第一卡扣5套接在外管接头32的环槽324内且具有伸出外管接头外的凸出部分，该连接套4呈喇叭状套结构且内设有限位面42，该凸出部分和限位面相配合。该喇叭套内设有能螺纹装接在外界的内螺纹，螺纹连接时通过第一卡扣实现限位，实现锁紧。该第一卡扣5如C形扣。
本实施例之中的管中管接头固定装置，外管接头32、内管接头311和内接头312锁接固定在一起构成整体，内管与外管可作为一个整体与外界装接或花洒等零件配合，装配方便。
图3和图4是上述固定装置的应用实例的结构示意图，该应用实例为厨房抽拉龙头，该抽拉龙头包括龙头本体61、设于龙头本体61的主控机构62和通水管65，该主控机构62连接冷水管63、热水管64和混合水路以通过主控机构62的把手控制水温、流量及开关；该龙头本体61还连接有净水水路；该通水管65一端连接该龙头本体61，另一端穿过龙头本体61且接通出水终端66，该通水管65采用上述的管中管结构；该通水管65和出水终端66之间的连接采用上述的固定装置，该通水管65和主控机构62之间的连接采用上述的固定装置；该管中管的内通路11和外通路21分别接通净水水路和混合水路，或者，内通路11和外通路21分别接通混合水路和净水水路。该出水终端设有能控制对应该净水水路之出水终端水路的开关。
实施例二
管中管接头固定装置，它与实施例一不同之处在于：请查阅图5、图6和图7，该内管接头单元31包括内管接头311，该内管接头311一端插入内管1端口内以实现固装，该内管接头311之伸出内管端口外的部分设有朝向内管1的配合面3112；该锁接机构33包括第二卡扣333，该第二卡扣333套接内管接头311外且适配定位于外管接头32端面和配合面3112间。该内管接头和外管接头通过第二卡扣333限位，避免二者相对移动，避免外管和内管相对移动，而且，第二卡扣不会对内管造成挤压，不会影响流量。该第二卡扣333包括C形扣，该C形扣具有缺口3331，该第二卡扣333端面凹设有内外贯穿的凹槽3332，该缺口3331和凹槽3332构成上述的连通路34。该配合面3112还轴向定位内管封套313一端。第二卡扣333不仅避免外管和内管相对移动，而且还构成通水路，简化结构，结构紧凑。
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
本发明管中管接头固定装置,外管接头和内管接头单元锁接固定在一起以构成整体，内外管不会相对移动，作为一个整体与外界装接或花洒等零件配合，装配时无需拆卸外管接头和内管接头单元，装拆方便，密封性好。

Claims (12)

  1. 管中管接头固定装置，包括内管和套在内管外的外管，该内管内构成内通路，该内管和外管间构成外通路；其特征在于：还包括固定机构和装接在外管的连接套；该固定机构包括内管接头单元、外管接头和锁接机构；该内管接头单元固装在内管端口且内管接头单元接通内通路；该外管接头固装在外管端口，该内管接头单元和外管接头通过锁接机构固装在一起；该固定机构还设有连通路，该连通路接通该连接套与固定机构间的腔体和外通路。
  2. 根据权利要求1所述的管中管接头固定装置，其特征在于：该内管接头单元包括内管接头和内管封套，该内管接头一端插入内管端口内以实现固装，该内管封套一端紧套在该内管接头之伸出内管端口外的部分，该内管封套另一端紧套在内管末端外周壁。
  3. 根据权利要求1所述的管中管接头固定装置，其特征在于：该外管接头具有锁接段和连接段，该锁接段插入外管端口内且固接在外管端口内壁，该连接段和锁接段间具有定位面，该定位面紧靠接在外管端面。
  4. 根据权利要求1所述的管中管接头固定装置，其特征在于：还包括第一卡扣，该外管接头外周壁凹设有环槽，该第一卡扣套接在外管接头的环槽内且具有伸出外管接头外的凸出部分，该连接套内设有限位面，该凸出部分和限位面相配合。
  5. 根据权利要求3所述的管中管接头固定装置，其特征在于：该内管接头单元包括内管接头，该内管接头一端插入内管端口内以实现固装，该内管接头之伸出内管端口外的部分设有朝向内管的配合面；该锁接机构包括第二卡扣，该第二卡扣套接内管接头外且定位于外管接头端面和配合面间。
  6. 根据权利要求5所述的管中管接头固定装置，其特征在于：该第二卡扣包括C形扣，该C形扣具有缺口，该缺口构成上述的连通路或连通路的部分。
  7. 根据权利要求5所述的管中管接头固定装置，其特征在于：该第二卡扣端面凹设有内外贯穿的凹槽，该凹槽构成上述的连通路或连通路的部分。
  8. 根据权利要求5所述的管中管接头固定装置，其特征在于：该内管接头单元包括内管封套，该内管封套一端紧套在该内管接头之伸出内管端口外的部分，该内管封套另一端紧套在内管末端外壁，该第二卡扣包围在内管封套外。
  9. 根据权利要求3所述的管中管接头固定装置，其特征在于：该内管接头单元包括内管接头和内接头，该内管接头一端插入内管端口内以实现固装，该内接头固装在内管接头之另一端且该内管接头设有凸环，该锁接机构包括锁紧套，该内接头位于该外管接头端口内，该凸环顶抵在外管接头末端面且该锁紧套固装在外管接头外，通过锁紧套和外管接头的锁接使锁紧套和外管接头末端面紧锁凸环。
  10. 根据权利要求9所述的管中管接头固定装置，其特征在于：该连接段设有内外贯穿的贯穿孔，该贯穿孔构成上述的连通路。
  11. 根据权利要求9所述的管中管接头固定装置，其特征在于：该锁紧套内凸设有凸缘，通过锁紧套和外管接头的锁接使凸缘和外管接头末端面紧锁凸环。
  12. 根据权利要求9所述的管中管接头固定装置，其特征在于：该内管接头单元包括内管封套，该内管封套一端紧套在该内管接头之伸出内管端口外的部分，该内管封套另一端紧套在内管末端外壁，该外管接头包围在内管封套外。
PCT/CN2021/087643 2020-04-27 2021-04-16 管中管接头固定装置 Ceased WO2021218655A1 (zh)

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