WO2021068984A1 - 一种连接管组件 - Google Patents
一种连接管组件 Download PDFInfo
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- WO2021068984A1 WO2021068984A1 PCT/CN2020/124815 CN2020124815W WO2021068984A1 WO 2021068984 A1 WO2021068984 A1 WO 2021068984A1 CN 2020124815 W CN2020124815 W CN 2020124815W WO 2021068984 A1 WO2021068984 A1 WO 2021068984A1
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- WIPO (PCT)
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- connecting pipe
- elbow
- union nut
- pipe assembly
- copper ring
- Prior art date
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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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
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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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/24—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with parts screwed directly on or into the hose
Definitions
- the invention relates to the technical field of pipe connection, in particular to a novel connecting pipe assembly used for installation of water heaters and wall-hung boilers.
- the purpose of the present invention is to solve the above-mentioned technical problems existing in the prior art, and to provide a complete system
- the connecting pipe assembly of the present invention can be made of copper alloy as a whole, or can be made of other metal materials such as stainless steel.
- the connecting pipe assembly of the present invention includes a first connecting pipe and a first right angle valve.
- the first connecting pipe and the first right angle valve are connected by a mechanical seal.
- the two free ends of the connecting pipe assembly are respectively provided with external threads and/or union nuts ;
- the end of the pipe sleeved by the union nut of the second connecting pipe is provided with a sealing flange or sleeve with a sealing copper ring.
- connecting pipe assembly of the present invention is further provided with a second connecting pipe, and the free end of the first right angle valve and the second connecting pipe are connected by a mechanical seal.
- the mechanical sealing connection of the second connecting pipe is a union nut flange seal or a union nut copper ring seal.
- the connecting pipe assembly of the present invention is further provided with a third connecting pipe, the free end of the first connecting pipe is connected to the third connecting pipe through a right-angle elbow, and the right-angle elbow and the first connecting pipe are sealed with a union nut flange or The union nut copper ring seal; the right-angle elbow and the third connecting pipe adopt the union nut flange seal or the union nut copper ring seal.
- the second connecting tube and the third connecting tube are bent, and after the bending, the axes of the two ends are perpendicular or parallel to each other.
- the second connecting tube is bent, and after the bending, the axes of the two ends are perpendicular or parallel to each other.
- connecting pipe assembly of the present invention is further provided with a third elbow, the third elbow is in a "Z" shape, the third elbow of the second connecting pipe is connected to the free end of the first connecting pipe, and the third elbow is connected to the free end of the first connecting pipe.
- a connecting pipe adopts union nut flange seal or union nut copper ring seal.
- two third elbows are provided, and the two third elbows are connected in series with the free end of the first connecting pipe.
- the third elbow of the second connecting pipe is formed by connecting two right-angle elbows.
- the connecting pipe assembly of the present invention is further provided with a fourth elbow, the fourth elbow is in the shape of a "Z", the fourth elbow of the second connecting pipe is connected with one end of the first right angle valve, and the other end is connected with the first Pipe connection, the fourth elbow and the first connecting pipe adopt union nut flange seal or union nut copper ring seal, the fourth elbow and the first right angle valve adopt union nut flange seal or union nut copper ring seal .
- the fourth elbow of the second connecting pipe is formed by connecting two right-angle elbows.
- an O-shaped sealing ring is provided on the inner surface of the pipe sleeved with the union nut.
- the connecting pipe assembly can be adjusted and installed according to the actual position between the wall-hung boiler or water heater interface and the embedded pipe interface. It can be applied to the installation of various brands and models of wall-hung boilers or water heaters, and all connecting pipes can be guaranteed The arrangement between them is always horizontal and vertical, making the overall installation structure beautiful.
- Each connecting pipe fitting of the connecting pipe assembly can adopt a modular structure design, which is convenient for the industrial production and application of the connecting pipe assembly.
- the connecting pipe fittings of the connecting pipe assembly are all made of metal pipe fittings, which have good connection sealing performance, high temperature resistance, anti-aging, and convenient maintenance, repair and replacement.
- the connecting pipe components are all made of metal pipe fittings. Compared with the connection structure of the corrugated pipe, the pressure resistance of the connecting pipe component is increased. Its pressure resistance can reach more than 20bar, which can effectively prevent the occurrence of pipe bursts. More safe and reliable.
- Figure 1 is a schematic diagram of Example 1.
- Figure 2 is a schematic diagram of Example 2.
- FIG. 3 is a schematic diagram of Embodiment 3.
- FIG. 3 is a schematic diagram of Embodiment 3.
- Figure 4 is a schematic diagram of Example 4.
- FIG. 5 is a schematic diagram of Embodiment 5.
- FIG. 6 is a schematic diagram of Embodiment 6.
- FIG. 7 is a schematic diagram of Embodiment 7.
- FIG. 7 is a schematic diagram of Embodiment 7.
- Fig. 8 is a schematic diagram of Example 8.
- Figure 9 is a schematic diagram of Example 9.
- FIG. 10 is a schematic diagram of Embodiment 10.
- FIG. 11 is a schematic diagram of Embodiment 11.
- FIG. 12 is a schematic diagram of Embodiment 12.
- FIG. 13 is a schematic diagram of Embodiment 13.
- the first connecting pipe 1 is connected to the first right angle valve 2, the first connecting pipe 1 and the first right angle valve 2 are sealed with a copper ring, and the pipe end is sleeved with a sealing copper ring 5.
- the first connecting end adopts one end sealed with a copper ring, which can be cut arbitrarily, and the length of the first connecting pipe 1 is determined according to site requirements.
- the free end of the first connecting pipe 1 is provided with a union nut 3 and the free end of the first connecting pipe 1 is provided with a sealing flange 4.
- the other end of the first right angle valve 2 forms an end of the connecting pipe assembly.
- the first connecting pipe 1 may be a straight pipe or a bent pipe.
- the pipe connected with the union nut 3 needs to be provided with an external thread 10.
- the first right angle valve 2 can be directly connected to the pre-embedded pipe interface 11, and the free end of the first connecting pipe 1 is connected to a wall-hung boiler or a water heater. After connection, the overall pipeline is horizontal and vertical, and the aesthetics is greatly improved. At the same time, the use of copper tube material will greatly improve the durability.
- the first connecting pipe 1 is connected with the first right angle valve 2, the first connecting pipe 1 and the first right angle valve 2 are sealed with a copper ring, and the pipe end is sleeved with a sealing copper ring 5.
- the first connecting end adopts one end sealed with a copper ring, which can be cut arbitrarily, and the length of the first connecting pipe 1 is determined according to site requirements.
- the free end of the first connecting pipe 1 is provided with a union nut 3, and the free end of the first connecting pipe 1 is provided with a sealing flange 4.
- the other end of the first right-angle valve 2 is connected to a second connecting pipe 6, which is similar to the first connecting pipe 1, and the length of the second connecting pipe 6 can also be adjusted after cutting arbitrarily.
- the first connecting pipe 1 is a straight pipe.
- the second connecting pipe 6 is a bent pipe.
- the free end of the first connecting pipe 1 or the second connecting pipe 6 can be respectively connected to the pre-embedded pipe interface 11, or connected to a wall-hung boiler or a water heater.
- the overall pipeline is horizontal and vertical, and the aesthetics is greatly improved.
- the use of copper tube material will greatly improve the durability.
- Embodiment 3 in conjunction with FIG. 3, in this embodiment, the first connecting pipe 1 and the second connecting pipe 6 are both bent.
- Embodiment 4 in conjunction with FIG. 4, in this embodiment, the first connecting pipe 1 adopts a bending method, and the second connecting pipe 6 adopts a straight pipe method.
- the first connecting pipe 1 and the first right angle valve 2 are connected, and a union nut 3 is used for flange sealing between the first connecting pipe 1 and the first right angle valve 2.
- the other end of the first connecting pipe 1 is connected to the right-angle elbow 8 by a copper ring seal.
- the other end of the right-angle elbow 8 is connected with the third connecting pipe 7.
- the third connecting pipe 7 and the right-angle elbow 8 are sealed by a copper ring, the pipe end is sleeved with a sealing copper ring 5 for connection, and the free end of the third connecting pipe 7 is provided with a sealing flange 4 and a union nut 3.
- the ends of the first connecting pipe 1 and the third connecting pipe 7 provided with a copper ring seal can be arbitrarily cut, and then the length of the connecting pipe can be adjusted.
- the third connecting pipe 7 is a bent pipe, which is suitable for the case where the pre-buried pipe interface 11 is parallel to the axis of the wall-hung boiler.
- the free end of the third connecting pipe 7 or the first right angle valve 2 can be connected to the pre-buried pipe interface 11, or connected to a wall-hung boiler or a water heater.
- the overall pipeline is horizontal and vertical, and the aesthetics is greatly improved.
- the use of copper tube material will greatly improve the durability.
- the first connecting pipe 1 is connected to the first right angle valve 2, and a union nut 3 is used for sealing between the first connecting pipe 1 and the first right angle valve 2.
- the other end of the first connecting pipe 1 is connected to the third elbow 9 by a copper ring seal.
- the third elbow 9 is in a "Z" shape.
- the relative rotation of the third elbow 9 and the first connecting pipe 1 can be adjusted as required Relationship, used to adapt to the interface of the wall-hung boiler.
- the first right-angle valve 2 can be directly connected to the pre-buried pipe interface 11, and the free end of the third elbow 9 is connected to a wall-hung boiler or a water heater.
- the overall pipeline is horizontal and vertical, and the aesthetics is greatly improved.
- the use of copper tube material will greatly improve the durability.
- Embodiment 8 with reference to FIG. 8, in this embodiment, on the basis of Embodiment 7, a second connecting pipe 6 connected to the first right angle valve 2 is added.
- Embodiment 10 in conjunction with FIG. 10, in this embodiment on the basis of Embodiment 7, the third elbow 9 is composed of two right-angle elbows 8.
- Embodiment 11 combined with FIG. 11.
- the first connecting pipe 1 is connected to the fourth elbow 13, and the fourth elbow 13 is connected to the first right angle valve 2.
- a copper ring is used for sealing between the first connecting pipe 1 and the fourth elbow 13.
- the fourth elbow 13 is in a "Z" shape, and the relative rotation relationship between the first connecting pipe 1 and the first right-angle valve 2 can be adjusted according to requirements to adapt to the interface of the wall-hung boiler.
- the other end of the first right angle valve 2 is also provided with a second connecting pipe 6.
- the second connecting pipe 6 can be directly connected to the pre-buried pipe interface 11, and the free end of the first connecting pipe 1 is connected to a wall-hung boiler or a water heater.
- the overall pipeline is horizontal and vertical, and the aesthetics is greatly improved.
- the use of copper tube material will greatly improve the durability.
- Embodiment 12 in conjunction with FIG. 12, in this embodiment, on the basis of Embodiment 11, the fourth elbow 13 is composed of two right-angle elbows 8.
- the fourth elbow 13 is composed of two right-angle elbows 8, one of which is folded and deformed into a pipe.
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Abstract
一种连接管组件，其采用金属管道，通过法兰密封或铜环密封组成组件，用于热水器、壁挂炉等与预埋管道接口连接；相比于现有的波纹管等连接方式，该连接管组件密封性更好，且耐高温、防老化，同时，采用的连接管件数量少，可以根据现场需要方便调整组件的长度尺寸，进一步降低了安装成本，使安装、维护更加方便，也可以做到横平竖直，更加美观。
Description
本发明涉及管道连接技术领域，特别涉及一种用于热水器、壁挂炉安装的新型连接管组件。
在室内家装中对热水器、壁挂炉进行安装时，需要将热水器或壁挂炉的冷热水进出水口与室内预埋的管道接口之间进行连接。由于目前市场上各个品牌、型号的热水器(壁挂炉)上的各管接口间距往往不同，并且各管接口与墙壁之间的间距也不同；同时，室内预埋的管道接口位置往往不规范，各管道接口之间的间距、所处的高度及与墙壁之间的距离往往各不相同，给热水器(壁挂炉)在管道连接时造成了很多不便。
目前，热水器(壁挂炉)在安装时，其管路连接结构大多采用波纹管、PPR管、铝塑管或铜管的连接方式。当采用波纹管、PPR管或铝塑管，这些管道容易折弯，但是如果操作不当，管道端部没有保留足够长度的直线段时，管道端部连接处经过长时间工作后容易产生泄露。当采用铜管进行连接时，因为需要采用预埋管道，往往需要改变工人的施工习惯和工艺，安装极不方便。
发明内容：
本发明的目的在于解决现有技术中存在的上述技术问题，提供 一种可成套制
造、使用，安装、连接方便，使用寿命长，维护保养方便，可拓展连接，可适用于各种不同品牌、型号热水器(壁挂炉)的安装，并且管道在室内的安装排布能做到横平竖直，整体设置美观的连接管组件。本发明的连接管组件可以整体由铜合金制造，也可用不锈钢等其它金属材料制造。
本发明的连接管组件，包括第一连接管和第一直角阀，第一连接管与第一直角阀之间通过机械密封连接，连接管组件两自由端分别设置外螺纹和/或活接螺母；第二连接管活接螺母所套设的管道端部，设置密封法兰或套设密封铜环。
进一步地，本发明的连接管组件还设置第二连接管，第一直角阀自由端与第二连接管通过机械密封连接。
进一步地，本发明的连接管组件，第二连接管机械密封连接为活接螺母法兰密封或活接螺母铜环密封。
进一步地，本发明的连接管组件，还设置第三连接管，第一连接管自由端通过直角弯头与第三连接管连接，直角弯头与第一连接管采用活接螺母法兰密封或活接螺母铜环密封；直角弯头与第三连接管采用活接螺母法兰密封或活接螺母铜环密封。
进一步地，本发明的连接管组件，第二连接管第三连接管设置折弯，折弯后两端部轴线垂直或不同轴平行。
进一步地，本发明的连接管组件，第二连接管设置折弯，折弯后两端部轴线垂直或不同轴平行。
进一步地，本发明的连接管组件，还设置第三弯头，第三弯头呈”Z”字形，第二连接管第三弯头与第一连接管自由端连接，第三弯头与第一连接管采用活接螺母法兰密封或活接螺母铜环密封。
进一步地，本发明的连接管组件，第三弯头设置两件，两件第三弯头串接后与第一连接管自由端连接。
进一步地，本发明的连接管组件，第二连接管第三弯头由两件直角弯头连接而成。
进一步地，本发明的连接管组件，还设置第四弯头，第四弯头呈”Z”字形，第二连接管第四弯头与一端与第一直角阀连接，另一端与第一连接管连接，第四弯头与第一连接管采用活接螺母法兰密封或活接螺母铜环密封，第四弯头与第一直角阀采用活接螺母法兰密封或活接螺母铜环密封。
进一步地，本发明的连接管组件，第二连接管第四弯头由两件 直角弯头连接而成。
进一步地，本发明的连接管组件，采用活接螺母铜环密封时，与活接螺母套设的管道内表面设置O形密封圈。
技术效果
1)该连接管组件可根据壁挂炉或热水器接口与预埋管道接口之间的实际位置进行调整和安装，可适用于各种不同品牌、型号壁挂炉或热水器的安装，并且可保证各连接管道之间的排布始终呈横平竖直的布置，使整体安装结构美观。
2)该连接管组件各连接管件之间采用活接螺纹或插接方式进行连接，安装操作简单、方便。
3)该连接管组件的各连接管件均可采用模块化的结构设计，方便连接管组件的工业化生产和应用。
4)该连接管组件的各连接管件均采用金属管件，连接密封性好，耐高温、防老化，维护保养及维修更换均比较方便。
5)该连接管组件各连接管件之间可随意组合和裁切，便于其它设备的连接和安装。
6)该连接管组件均采用金属管件，相比于采用波纹管的连接结构，增加了连接管组件的耐压性能，其耐压能力可达到20bar以上，可有效防止爆管现象的发生，连接更加安全可靠。
图1为实施例1示意图。
图2为实施例2示意图。
图3为实施例3示意图。
图4为实施例4示意图。
图5为实施例5示意图。
图6为实施例6示意图。
图7为实施例7示意图。
图8为实施例8示意图。
图9为实施例9示意图。
图10为实施例10示意图。
图11为实施例11示意图。
图12为实施例12示意图。
图13为实施例13示意图。
附图标记：1-第一连接管，2-第一直角阀，3-活接螺母，4-密封法兰，5-密封铜环，6-第二连接管，7-第三连接管，8-直角弯头，9-第三弯头，10-外螺纹，11-预埋管道接口，12-密封垫圈，13-第四弯头
实施例1结合图1
本实施例的连接管组件，第一连接管1与第一直角阀2连接，第一连接管1与第一直角阀2之间采用铜环密封，管端套设密封铜环5。第一连接端采用铜环密封的一端，可以任意裁切，根据现场需要决 定第一连接管1的长度。第一连接管1自由端设置活接螺母3，第一连接管1自由端设置密封法兰4。第一直角阀2另一端形成连接管组件的一个端头。第一连接管1可以是直管，也可以是折弯管。当连接采用活接螺母3连接时，与活接螺母3连接的管道上需要设置外螺纹10。使用的时候，第一直角阀2可以直接与预埋管道接口11连接，第一连接管1自由端与壁挂炉或热水器连接。连接好以后，整体管道横平竖直，美观度大大提高。同时采用铜管材料，耐用性也会大大提高。
实施例2，结合图2
本实施例的连接管组件，第一连接管1与第一直角阀2连接，第一连接管1与第一直角阀2之间采用铜环密封，管端套设密封铜环5。第一连接端采用铜环密封的一端，可以任意裁切，根据现场需要决定第一连接管1的长度。第一连接管1自由端设置活接螺母3，第一连接管1自由端设置密封法兰4。第一直角阀2另一端连接第二连接管6，第二连接管6与第一连接管1类似，也可以任意裁切后，调整第二连接管6长度。本实施例中，第一连接管1是直管。第二连接管6为折弯管。第一连接管1或第二连接管6自由端，可以分别与预埋管道接口11连接，或者与壁挂炉或热水器连接。连接好以后，整体管道横平竖直，美观度大大提高。同时采用铜管材料，耐用性也会大大提高。
实施例3，结合图3，本实施例中第一连接管1和第二连接管6， 都采用折弯的方式。
实施例4，结合图4，本实施例中第一连接管1采用折弯的方式，第二连接管6采用直管的方式。
实施例5，结合图5。
本实施例的连接管组件，第一连接管1与第一直角阀2连接，第一连接管1与第一直角阀2之间采用活接螺母3法兰密封。第一连接管1另一端采用铜环密封与直角弯头8连接。直角弯头8另一端与第三连接管7连接。第三连接管7与直角弯头8之间采用铜环密封，管端套设密封铜环5连接，第三连接管7自由端设置密封法兰4和活接螺母3。第一连接管1和第三连接管7设置铜环密封的一端可以任意裁切后，调整连接管长度。本实施例中，第三连接管7为折弯管，适用于预埋管道接口11与壁挂炉轴线平行的情况。本实施例中，第三连接管7或第一直角阀2自由端，可以分别与预埋管道接口11连接，或者与壁挂炉或热水器连接。连接好以后，整体管道横平竖直，美观度大大提高。同时采用铜管材料，耐用性也会大大提高。
实施例6，结合图6，本实施例中第三连接管7采用直角折弯的方式。
实施例7，结合图7
本实施例的连接管组件，第一连接管1与第一直角阀2连接，第一连接管1与第一直角阀2之间采用活接螺母3铜环密封。第一连接管 1另一端采用铜环密封与第三弯头9连接，第三弯头9为“Z”字形，根据需要，可以调节第三弯头9与第一连接管1的相对转到关系，用于适应壁挂炉的接口。使用的时候，第一直角阀2可以直接与预埋管道接口11连接，第三弯头9自由端与壁挂炉或热水器连接。连接好以后，整体管道横平竖直，美观度大大提高。同时采用铜管材料，耐用性也会大大提高。
实施例8，结合图8，本实施例在实施例7基础上，还增了与第一直角阀2连接的第二连接管6。
实施例9，结合图9，本实施例在实施例7基础上，第三弯头9设置两件，通过第三弯头9与第一连接管1之间的相对转动关系，可以微调适应壁挂炉的接口。
实施例10，结合图10，本实施例在实施例7基础上，第三弯头9由两件直角弯头8组成。
实施例11，结合图11。
本实施例的连接管组件，第一连接管1与第四弯头13连接，第四弯头13与第一直角阀2连接。第一连接管1与第四弯头13之间采用铜环密封。第四弯头13为“Z”字形，根据需要，可以调节第一连接管1与第一直角阀2的相对转到关系，用于适应壁挂炉的接口。第一直角阀2的另一端还设置有第二连接管6。使用的时候，第二连接管6可以直接与预埋管道接口11连接，第一连接管1自由端与壁挂炉或热水 器连接。连接好以后，整体管道横平竖直，美观度大大提高。同时采用铜管材料，耐用性也会大大提高。
实施例12，结合图12，本实施例中，在实施例11的基础上，第四弯头13由两件直角弯头8组成。
实施例13，结合图13，本实施例中，在实施例12的基础上，第四弯头13由两件直角弯头8组成，其中一件直角弯头8收折变管道变形而成。
Claims (12)
- 一种连接管组件，包括第一连接管和第一直角阀，第一连接管与第一直角阀之间通过机械密封连接，连接管组件两自由端分别设置外螺纹和/或活接螺母；所述活接螺母所套设的管道端部，设置密封法兰或套设密封铜环。
- 根据权利要求1所述的连接管组件，其特征是还设置第二连接管，第一直角阀自由端与第二连接管通过机械密封连接。
- 根据权利要求1或2所述的连接管组件，其特征是，所述机械密封连接为活接螺母法兰密封或活接螺母铜环密封。
- 根据权利要求3所述的连接管组件，其特征是，还设置第三连接管，第一连接管自由端通过直角弯头与第三连接管连接，直角弯头与第一连接管采用活接螺母法兰密封或活接螺母铜环密封；直角弯头与第三连接管采用活接螺母法兰密封或活接螺母铜环密封。
- 根据权利要求4所述的连接管组件，其特征是，所述第三连接管设置折弯，折弯后两端部轴线垂直或不同轴平行。
- 根据权利要求4所述的连接管组件，其特征是，所述第二连接管设置折弯，折弯后两端部轴线垂直或不同轴平行。
- 根据权利要求3所述的连接管组件，其特征是，还设置第三弯头，第三弯头呈”Z”字形，所述第三弯头与第一连接管自由端连接，第三弯头与第一连接管采用活接螺母法兰密封或活接螺母铜环密封。
- 根据权利要求7所述的连接管组件，其特征是，第三弯头设 置两件，两件第三弯头串接后与第一连接管自由端连接。
- 根据权利要求8所述的连接管组件，其特征是，所述第三弯头由两件直角弯头连接而成。
- 根据权利要求3所述的连接管组件，其特征是，还设置第四弯头，第四弯头呈”Z”字形，所述第四弯头与一端与第一直角阀连接，另一端与第一连接管连接，第四弯头与第一连接管采用活接螺母法兰密封或活接螺母铜环密封，第四弯头与第一直角阀采用活接螺母法兰密封或活接螺母铜环密封。
- 根据权利要求10所述的连接管组件，其特征是，所述第四弯头由两件直角弯头连接而成。
- 根据权利要求4到11任一所述的连接管组件，其特征是，采用活接螺母铜环密封时，与活接螺母套设的管道内表面设置O形密封圈。
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| CN201921692459.7U CN210772808U (zh) | 2019-10-11 | 2019-10-11 | 一种新型连接管组件 |
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