WO2020119203A1 - 一种管道不可拆卸快插连接头 - Google Patents

一种管道不可拆卸快插连接头 Download PDF

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Publication number
WO2020119203A1
WO2020119203A1 PCT/CN2019/106133 CN2019106133W WO2020119203A1 WO 2020119203 A1 WO2020119203 A1 WO 2020119203A1 CN 2019106133 W CN2019106133 W CN 2019106133W WO 2020119203 A1 WO2020119203 A1 WO 2020119203A1
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ring
socket
pipe
area
plug connector
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PCT/CN2019/106133
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English (en)
French (fr)
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文长宏
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成都共同管业集团股份有限公司
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Publication of WO2020119203A1 publication Critical patent/WO2020119203A1/zh

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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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
    • 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
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints

Definitions

  • the invention relates to the technical field of pipeline connection and fixing, in particular to a pipeline non-removable quick-plug connector.
  • the pipeline is a device for conveying gas, liquid or fluid with solid particles connected by pipes, fittings and valves.
  • Pipe fittings are widely used, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial installations.
  • An object of the present invention is to solve at least the above-mentioned problems and/or defects and provide at least the advantages which will be described later.
  • the present invention provides a non-removable quick plug connector for pipelines, including:
  • the integrally formed connector located at the pipe port forms a pipe fitting socket inside the connector composed of the socket area and the fixed area;
  • the fixed area is provided with an elastic sealing ring and an anti-return ring, the inner ring of the elastic sealing ring protrudes inwardly out of the wall surface of the inner wall of the socket of the pipe fitting;
  • the anti-return ring is composed of a ring body and anti-recess teeth,
  • a ring arranged in a comb-shaped tooth structure is provided on the ring body; the bottom of the stop tooth protrudes inwardly out of the wall surface of the inner wall of the socket of the pipe fitting.
  • the elastic sealing ring adopts a rubber sealing ring.
  • the socket area and the fixed area adopt an integrated structure.
  • the fixing area adopts a bent shape with two ends protruding to the outside of the pipe socket and the middle to the inside of the pipe socket, and the elastic sealing ring is installed inside the protrusion at one end connecting the fixing area and the socket area
  • the anti-return ring is fixed inside the protrusion at the other end of the fixed area, and the depression in the middle of the fixed area separates the elastic seal ring from the anti-return ring.
  • the fixed area port is provided with an isolation barrier
  • the inner diameter of the isolation barrier is the same as the inner diameter of the socket of the pipe fitting
  • the isolation barrier is one of a bent portion and a barrier ring integrally formed with the fixed area.
  • the inner diameter of the inner surface of the depression in the middle of the fixed area is not less than the inner diameter of the socket of the pipe fitting.
  • the fixing area adopts a shape protruding outside the socket of the pipe fitting, and a support ring is provided inside the fixing area between the elastic seal ring and the stop ring, and the two sides of the support ring are respectively connected with the elastic seal ring and the stop
  • the ring body of the retraction ring is connected; the side of the support ring facing the backstop tooth is provided with a movable part; a sealing ring is installed at the port of the fixed area, and one side of the sealing ring is connected to the side of the ring body.
  • the inner diameter of the support ring is not smaller than the inner diameter of the socket of the pipe fitting.
  • a transition section in the shape of a boss is provided at the connection between the socket area and the pipe port, a large port of the transition section is connected to the socket area, and a small port of the transition section is connected to the pipe;
  • the transition section is provided with matching positioning Seat, the end face of the pipe corresponding to the inner diameter is provided with an annular seal seat, and the surface of the positioning seat facing the pipe is provided with a plurality of annular positioning grooves arranged equidistantly in the diameter direction; the seal seat faces the pipe The end face is provided with a sealing shoulder matching the positioning groove.
  • a rubber pad is provided on the side wall surface of the positioning groove.
  • the non-removable quick plug connector of the pipe of the present invention has a simple structure, is easy to install, and has high installation efficiency, and is not removable after installation, to ensure the safe use of the pipe and avoid malicious disassembly and damage to the pipe fittings;
  • the elastic sealing ring is tightly inserted into the corresponding inner diameter pipe in the socket of the pipe fitting for sealing, and the stop ring fixes the pipe to prevent the pipe from being displaced. It strengthens the connection and stability of the pipe fitting and the pipe, and prevents the pipe fitting and the pipe from being subjected to a certain working pressure. During operation, shedding and leakage occur to ensure the stability and tightness of the connection.
  • FIG. 1 is a schematic diagram of a fixed area structure of the quick plug connector of the present invention.
  • Fig. 2 is a schematic diagram of a tube insertion structure of a fixed area of the quick plug connector of the present invention.
  • FIG. 3 is a partially enlarged structural diagram of A in FIG. 2 of the present invention.
  • FIG. 4 is a schematic diagram of another fixed area structure of the quick plug connector of the present invention.
  • FIG. 5 is a schematic diagram of a tube insertion structure of another fixed area of the quick plug connector of the present invention.
  • Figures 1 to 5 show a non-removable quick plug connector of the present invention, including:
  • the integrally formed connector 2 located at the port of the tube 1 forms the tube socket 3 inside the connector 2 composed of the socket area 21 and the fixed area 22;
  • the fixed area 22 is provided with an elastic seal ring 4 and a stop ring 5.
  • the inner ring of the elastic seal ring 4 protrudes inwards from the inner wall surface of the pipe socket 3, that is, in the installed state, the inner diameter of the elastic seal ring 4 is smaller than that of the pipe socket
  • the inner diameter of the mouth 3; the stop ring 5 is composed of a ring body 51 and a stop tooth 52, the stop tooth 52 is arranged in a comb-like tooth structure arranged on the ring body 51; the stop tooth 52 bottom
  • the inner protrusion is out of the wall surface of the inner wall of the pipe socket 3.
  • the non-removable quick plug connector of the pipeline has a simple structure, is easy to install, and has high installation efficiency, and is not removable after installation, to ensure the safe use of the pipe, to avoid malicious disassembly and damage to the pipe fittings; the use of external force will correspond
  • the tube with the inner diameter is inserted into the socket 3 of the pipe fitting, and the tube advances over the stop tooth 52 to press against and over the elastic sealing ring 4.
  • the reaction force presses against the hoop tube, thereby Sealing, the back teeth 52 of the back ring 5 are against the outer surface of the pipe to prevent the pipe from retreating, and the connection and stability of the pipe 1 and the pipe are strengthened to avoid falling off and leakage when a certain working pressure is applied.
  • the stability and tightness of the connection between the pipe 1 and the pipe is strengthened to avoid falling off and leakage when a certain working pressure is applied.
  • the elastic sealing ring 4 uses a rubber sealing ring.
  • the rubber has good elasticity, aging resistance and corrosion resistance, and has a low water absorption rate, which is advantageous for the elastic sealing ring 4 to obtain a better sealing effect.
  • the socket area 21 and the fixed area 22 adopt an integrated structure. With this solution, the overall strength of the connecting member 2 is enhanced.
  • the fixing area 22 adopts a bent shape that protrudes toward the outside of the pipe socket 3 at both ends and concaves toward the inside of the pipe socket 3 at the middle, and the elastic sealing ring 4 is installed at the fixing area 22 and the socket
  • the protrusion at one end connected to the insertion zone 21 is inside, and the stop ring 5 is fixed inside the protrusion at the other end of the fixing zone 22.
  • the depression in the middle of the fixing zone 22 separates the elastic sealing ring 4 from the stop ring 5.
  • the concave portion in the middle of the fixing area 22 separates the elastic sealing ring 4 from the stop ring 5 while further stabilizing the elastic sealing ring 4 to ensure the stability of the elastic sealing ring 4 and thus to ensure its sealing performance.
  • an isolation barrier 6 is provided at the port of the fixed area 22, and the inner diameter of the isolation barrier 6 is the same as the inner diameter of the pipe socket 3.
  • the isolated barrier 6 may use a bent portion integrally formed with the fixed area 22 , One of the barriers.
  • the inner diameter of the inner surface of the depression in the middle of the fixing area 22 is not less than the inner diameter of the pipe socket 3.
  • the fixing area 22 adopts a shape that protrudes toward the outside of the pipe socket 3, and a support ring 7 is provided inside the fixing area 22 between the elastic seal ring 4 and the stop ring 5, the support
  • the two sides of the ring 7 are respectively connected with the elastic sealing ring 4 and the ring body 51 of the anti-return ring 5, which can be specifically abutted;
  • the side of the support ring 7 facing the anti-recess tooth 52 is provided with a movable portion 71;
  • the fixed area 22 is at the port A sealing ring 9 is installed, and one side of the sealing ring 9 is connected to the side of the ring body 51, which may specifically be abutment.
  • the support ring 7 further stabilizes the elastic seal ring 4, and the support ring 7 and the sealing ring 9 fix the stop ring 5 to prevent the elastic seal ring 4 and the stop ring 3 from loosening to ensure the elastic seal ring 4 and stop
  • the sealing ring 9 fixes the retaining ring 5 and isolates the retaining ring 5 at the same time, avoiding the manual use of tools Push the stop tooth 52 inward to remove the tube backward.
  • the movable gap 8 prevents the support ring 7 from hindering the movement of the stop tooth 52. After the pipe is inserted into the pipe socket 3, there is no space between the movable part 71 and the stop tooth 52 The movable gap 8, or the movable gap 8 becomes smaller.
  • the inner diameter of the support ring 7 is not smaller than the inner diameter of the pipe socket 3.
  • the supporting ring 7 can prevent the insertion and installation of the corresponding inner diameter tube while realizing the fixing of the elastic sealing ring 4 and the retaining ring 3.
  • a projection-shaped transition section 10 is provided at the connection between the socket area 21 and the pipe 1 port, the transition section 10 has a large (diameter) port connected to the socket area 21, and the transition section 10 has a small (diameter )
  • the port is connected to the pipe 1;
  • the transition section 10 is provided with a matching positioning seat 11, the end face of the pipe corresponding to the inner diameter is provided with an annular sealing seat 12, the positioning seat 11 is provided with a side surface facing the pipe
  • a plurality of annular positioning grooves 111 arranged equidistantly in the diameter direction; the end face of the sealing seat 12 facing the pipe 1 is provided with a sealing shoulder 121 matching the positioning groove 111.
  • the positioning groove 111 of the positioning seat 11 and the sealing shoulder 121 of the sealing seat 12 are engaged to form a multi-bend-shaped barrier path, so that the fluid flows from the gap between the pipe member 1 and the pipe It is hindered and prevented from leaking when leaking out.
  • the multi-bent blocking path and the elastic sealing ring 4 form a double seal guarantee to further enhance the sealing performance.
  • the positioning seat 11 can realize the positioning function of the pipe, the depth of the pipe insertion and the positioning seat
  • the distance from 11 to the outer port of the fixed area 22 is the same, so that the depth of the tube insertion can be controlled, so that the tube insertion is not too deep or too short due to the difference in the operation of the staff.
  • a rubber pad 13 is provided on the side wall surface of the positioning groove 111.
  • the rubber pad 13 further prevents the fluid from leaking outward, further enhancing the 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

一种管道不可拆卸快插连接头，包括：位于管件（1）端口处且与管件一体成形的连接件（2），由承插区（21）、固定区（22）组成的连接件内部形成管件承口（3）；所述固定区内设有弹性密封圈（4）与止退环（5），弹性密封圈内圈向内凸出于管件承口内壁壁面；所述止退环由环体（51）与止退齿（52）组成，所述止退齿呈梳状齿结构排列环设于环体上；所述止退齿底部向内凸出于管件承口内壁壁面。该管道不可拆卸快插连接头结构简单，管件连接密封性强、固定牢靠且不可拆卸。

Description

一种管道不可拆卸快插连接头
本申请要求于2018年12月12日提交中国专利局、申请号为201811520881.4、发明名称为“一种管道不可拆卸快插连接头”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及管道连接固定技术领域，尤其涉及一种管道不可拆卸快插连接头。
背景技术
管道是用管子、管件和阀门等连接成的用于输送气体、液体或带固体颗粒的流体的装置。管件的用途很广泛，主要用在给水、排水、供热、供煤气、长距离输送石油和天然气、农业灌溉、水力工程和各种工业装置中。
在现代社会中，管道的使用越发普及，并应用在各种领域中，用于输送燃气、水等物质。目前，两个管道之间的连接主要是通过焊接或螺栓连接固定连接，但是焊接或螺栓连接固定连接都不方便，安装工作耗时长，工作效率低下。
发明内容
本发明的一个目的是解决至少上述问题和/或缺陷，并提供至少后面将说明的优点。
为了解决现有技术的不足，本发明提供一种管道不可拆卸快插连接头，包括：
位于管件端口一体成形的连接件，由承插区、固定区组成的连接件内部形成管件承口；
所述固定区内设有弹性密封圈与止退环，弹性密封圈内圈向内凸出于管件承口内壁壁面；所述止退环由环体与止退齿组成，所述止退齿呈梳状齿结构排列环设于环体上；所述止退齿底部向内凸出于管件承口内壁壁面。
优选地，所述弹性密封圈采用橡胶密封圈。
优选地，承插区与固定区采用一体式结构。
优选地，所述固定区采用两端向管件承口外部凸起且中部向管件承口内部凹陷的弯折形，所述弹性密封圈安装于固定区与承插区连接的一端凸起处内部，止退环固定于固定区另一端凸起处内部，固定区中部的凹陷处将弹性密封圈与止退环分隔开。
优选地，所述固定区端口设置有隔离阻挡部，所述隔离阻挡部内径与管件承口内径一致，隔离阻挡部采用与固定区一体成形的折弯部、阻挡圈中的一种。
优选地，所述固定区中部的凹陷处内表面的内径不小于管件承口的内径。
优选地，所述固定区采用向管件承口外部凸起的形状，所述弹性密封圈与止退环间的固定区内部设置有支撑圈，所述支撑圈两侧面分别与弹性密封圈、止退环的环体连接；支撑圈面向止退齿的侧面设有活动部；所述固定区端口处安装有封口圈，所述封口圈一侧面与环体侧面连接。
优选地，所述支撑圈的内径均不小于管件承口的内径。
优选地，所述承插区与管件端口连接处设有凸台形状的过渡段，过渡段大端口与承插区连接，过渡段小端口与管件连接；所述过渡段内设置有匹配的定位座，对应内径的管件的端面上设有环状的密封座，所述定位座面向管件的一侧表面开有若干沿直径方向等距离排列的环形的定位槽；所述密封座面向管件一侧的端面设有与定位槽相匹配的密封凸肩。
优选地，所述定位槽侧壁表面设置有橡胶垫。
本发明至少包括以下有益效果：
1、本发明的管道不可拆卸快插连接头结构简单，容易安装，安装工作效率高，且安装后不可拆卸，保证管子使用安全，避免出现恶意拆卸、损伤管件的情况；
2、弹性密封圈紧箍插入管件承口内的对应内径管子以进行密封，止退环固定管子，防止管子发生退位现象，增强管件与管子的连接固定稳固性，避免管件与管子在受到一定工作压力作用时发生脱落、泄漏，保证连接的稳定性与密封性。
附图说明
图1是本发明的快插连接头一种固定区结构示意图。
图2是本发明的快插连接头一种固定区的管子插入结构示意图。
图3是本发明的图2中A的局部放大结构示意图。
图4是本发明的快插连接头另一种固定区结构示意图。
图5是本发明的快插连接头另一种固定区的管子插入结构示意图。
附图标记：1-管件，2-连接件，21-承插区，22-固定区，3-管件承口，4-弹性密封圈，5-止退环，51-环体，52-止退齿，6-隔离阻挡圈，7-支撑圈，71-活动部，8-活动间隙，9-封口圈，10-过渡段，11-定位座，111-定位槽，12-密封座，121-密封凸肩，13-橡胶垫，14-管子。
具体实施方式
下面结合附图对本发明做进一步的详细说明，以令本领域技术人员参照说明书文字能够据以实施。
应当理解，本文所使用的诸如“具有”、“包含”以及“包括”术语并不配出一个或多个其它元件或其组合的存在或添加。
图1～5示出了本发明的一种管道不可拆卸快插连接头，包括：
位于管件1端口一体成形的连接件2，由承插区21、固定区22组成的连接件2内部形成管件承口3；
所述固定区22内设有弹性密封圈4与止退环5，弹性密封圈4内圈向内凸出于管件承口3内壁壁面，即安装状态下，弹性密封圈4的内径小于管件承口3的内径；所述止退环5由环体51与止退齿52组成，所述止退齿52呈梳状齿结构排列环设于环体51上；所述止退齿52底部向内凸出于管件承口3内壁壁面。
在这种技术方案中，管道不可拆卸快插连接头结构简单，容易安装，安装工作效率高，且安装后不可拆卸，保证管子使用安全，避免出现恶意拆卸、损伤管件的情况；使用外力将对应内径的管子插入管件承口3内，管子越过止退齿52向前推进至抵压、越过弹性密封圈4，弹性密封圈4在 经外力作用发生弹性形变后反作用力抵压紧箍管子，从而进行密封，止退环5的止退齿52抵住管子外表面，防止管子发生后退位现象，增强管件1与管子的连接固定稳固性，避免在受到一定工作压力作用时发生脱落、泄漏，保证管件1与管子连接的稳定性与密封性。
在上述技术方案中，所述弹性密封圈4采用橡胶密封圈。采用这种方案，橡胶具有良好的弹性、耐老化性及耐腐蚀性，吸水率低，有利于弹性密封圈4取得更优的密封效果。
在上述技术方案中，承插区21与固定区22采用一体式结构。采用这种方案，增强连接件2的整体强度。
在另一种实例中，所述固定区22采用两端向管件承口3外部凸起且中部向管件承口3内部凹陷的弯折形，所述弹性密封圈4安装于固定区22与承插区21连接的一端凸起处内部，止退环5固定于固定区22另一端凸起处内部，固定区22中部的凹陷处将弹性密封圈4与止退环5分隔开。
在这种技术方案中，固定区22中部的凹陷处将弹性密封圈4与止退环5分隔开的同时进一步稳定弹性密封圈4，保证弹性密封圈4的稳定性从而保证其密封性。
在上述技术方案中，所述固定区22端口设置有隔离阻挡部6，所述隔离阻挡部6内径与管件承口3内径一致，隔离阻挡部6可采用与固定区22一体成形的折弯部、阻挡圈中的一种。采用这种方案，隔离阻挡部6抵挡隔离止退环5，避免人为轻易使用工具向内推动止退齿52从而向后取出管子，进一步保证管件与管子连接可靠。
在上述技术方案中，所述固定区22中部的凹陷处内表面的内径不小于管件承口3的内径。采用这种方案，避免固定区22中部的凹陷处阻碍对应内径的管子的插入。
在另一种实例中，所述固定区22采用向管件承口3外部凸起的形状，所述弹性密封圈4与止退环5间的固定区22内部设置有支撑圈7，所述支撑圈7两侧面分别与弹性密封圈4、止退环5的环体51连接，具体可以为抵接；支撑圈7面向止退齿52的侧面设有活动部71；所述固定区22端口处安装有封口圈9，所述封口圈9一侧面与环体51侧面连接，具体可以为抵接。
在这种技术方案中，支撑圈7进一步稳固弹性密封圈4，支撑圈7与封口圈9固定止退环5，避免弹性密封圈4、止退环3发生松动，保证弹性密封圈4与止退环3的稳定性，从而保证止退齿32对管子的止退作用，保证弹性密封圈4的密封效果；封口圈9固定止退环5的同时隔离止退环5，避免人为轻易使用工具向内推动止退齿52从而向后取出管子。活动部71与止退齿52间留有活动间隙8，活动间隙8避免支撑圈7阻碍止退齿52的活动，待管件插入管件承口3后，活动部71与止退齿52间不存在活动间隙8，或者，活动间隙8变小。
在上述技术方案中，所述支撑圈7的内径均不小于管件承口3的内径。采用这种方案，使得支撑圈7在实现固定弹性密封圈4、止退环3的同时避免阻碍对应内径管子的插入安装。
在另一种实例中，所述承插区21与管件1端口连接处设有凸台形状的过渡段10，过渡段10大(径)端口与承插区21连接，过渡段10小(径)端口与管件1连接；所述过渡段10内设置有匹配的定位座11，对应内径的管件的端面上设有环状的密封座12，所述定位座11面向管件的一侧表面开有若干沿直径方向等距离排列的环形的定位槽111；所述密封座12面向管件1一侧的端面设有与定位槽111相匹配的密封凸肩121。
在这种技术方案中，在管件1的径向上，定位座11的定位槽111与密封座12的密封凸肩121咬合形成多弯折形阻隔路径，使得流体从管件1与管子连接处的空隙向外溢出泄漏时受到阻碍，避免泄漏，多弯折形阻隔路径与弹性密封圈4构成双重密封保证，进一步增强密封性，同时定位座11可实现管件的定位功能，管子插入的深度与定位座11到固定区22外端口的距离一致，使得管子插入的深度可控，避免因工作人员的操作差异而使得管子插入过深或者过短。
在上述技术方案中，所述定位槽111侧壁表面设置有橡胶垫13。采用这种方案，橡胶垫13进一步阻碍流体向外泄漏，进一步增强密封性。
尽管本发明的实施方案已公开如上，但其并不仅仅限于说明书和实施方式中所列运用，它完全可以被适用于各种适合本发明的领域，对于熟悉本领域的人员而言，可容易地实现另外的修改，因此在不背离权利要求及等同范围所限定的一般概念下，本发明并不限于特定的细节和这里示出与 描述的图例。

Claims (10)

  1. 一种管道不可拆卸快插连接头，其特征在于，包括：
    位于管件(1)端口一体成形的连接件(2)，由承插区(21)、固定区(22)组成的连接件(2)内部形成管件承口(3)；
    所述固定区(22)内设有弹性密封圈(4)与止退环(5)，弹性密封圈(4)内圈向内凸出于管件承口(3)内壁壁面；所述止退环(5)由环体(51)与止退齿(52)组成，所述止退齿(52)呈梳状齿结构排列环设于环体(51)上；所述止退齿(52)底部向内凸出于管件承口(3)内壁壁面。
  2. 根据权利要求1所述的一种管道不可拆卸快插连接头，其特征在于，所述弹性密封圈(4)采用橡胶密封圈。
  3. 根据权利要求1所述的一种管道不可拆卸快插连接头，其特征在于，承插区(21)与固定区(22)采用一体式结构。
  4. 根据权利要求1所述的一种管道不可拆卸快插连接头，其特征在于，所述固定区(22)采用两端向管件承口(3)外部凸起且中部向管件承口(3)内部凹陷的弯折形，所述弹性密封圈(4)安装于固定区(22)与承插区(21)连接的一端凸起处内部，止退环(5)固定于固定区(22)另一端凸起处内部，固定区(22)中部的凹陷处将弹性密封圈(4)与止退环(5)分隔开。
  5. 根据权利要求4所述的一种管道不可拆卸快插连接头，其特征在于，所述固定区(22)端口设置有隔离阻挡部(6)，所述隔离阻挡部(6)内径与管件承口(3)内径一致，隔离阻挡部(6)采用与固定区(22)一体成形的折弯部、阻挡圈中的一种。
  6. 根据权利要求4所述的一种管道不可拆卸快插连接头，其特征在于，所述固定区(22)中部的凹陷处内表面的内径不小于管件承口(3)的内径。
  7. 根据权利要求1所述的一种管道不可拆卸快插连接头，其特征在于，所述固定区(22)采用向管件承口(3)外部凸起的形状，所述弹性密封圈(4)与止退环(5)间的固定区(22)内部设置有支撑圈(7)，所述支撑圈(7)两侧面分别与弹性密封圈(4)、止退环(5)的环体(51)连接；支撑圈(7)面向止退齿(52)的侧面设有活动部(71)；所述固定区(22)端口处安装有封口圈(9)，所述封口圈(9)一侧面与环体(51)侧面连接。
  8. 根据权利要求7所述的一种管道不可拆卸快插连接头，其特征在于，所述支撑圈(7)的内径均不小于管件承口(3)的内径。
  9. 根据权利要求1所述的一种管道不可拆卸快插连接头，其特征在于，所述承插区(21)与管件(1)端口连接处设有凸台形状的过渡段(10)，过渡段(10)大端口与承插区(21)连接，过渡段(10)小端口与管件(1)连接；所述过渡段(10)内设置有匹配的定位座(11)，对应内径的管件的端面上设有环状的密封座(12)，所述定位座(11)面向管件的一侧表面开有若干沿直径方向等距离排列的环形的定位槽(111)；所述密封座(12)面向管件一侧的端面设有与定位槽(111)相匹配的密封凸肩(121)。
  10. 根据权利要求9所述的一种管道不可拆卸快插连接头，其特征在于，所述定位槽(111)侧壁表面设置有橡胶垫(13)。
PCT/CN2019/106133 2018-12-12 2019-09-17 一种管道不可拆卸快插连接头 WO2020119203A1 (zh)

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