CN111486288B - 用于连接管状件的装置、带管状件的装置和粘合胶的组合结构以及连接管状件和装置的方法 - Google Patents

用于连接管状件的装置、带管状件的装置和粘合胶的组合结构以及连接管状件和装置的方法 Download PDF

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CN111486288B
CN111486288B CN202010076076.8A CN202010076076A CN111486288B CN 111486288 B CN111486288 B CN 111486288B CN 202010076076 A CN202010076076 A CN 202010076076A CN 111486288 B CN111486288 B CN 111486288B
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recess
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H·B·登梅兹
E·阿普逖古拉瑞
R·穆措
S·卡拉亚吉兹
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Danfoss AS
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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
    • F16L33/32—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses comprising parts outside the hoses only
    • 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
    • F16L33/34—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with bonding obtained by vulcanisation, gluing, melting, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • F16L13/10—Adhesive or cemented joints
    • 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
    • F16L13/10—Adhesive or cemented joints
    • F16L13/11—Adhesive or cemented joints using materials which fill the space between parts of a joint before hardening
    • F16L13/116—Adhesive or cemented joints using materials which fill the space between parts of a joint before hardening for socket 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

用于将管状件如软管或配管连接至液压系统或气动系统的另一个部件的装置，所述装置包括具有连接端部和管状件插入端部的主体，所述主体具有从所述连接端部延伸至所述管状件插入端部的柱形通道，其中所述连接端部用于连接至所述液压系统或气动系统的另一部件，其中所述柱形通道包括第一部分和第二部分，所述第一部分布置在管状件插入端部内，并且所述第二部分布置在所述连接端部内，其中所述管状件插入端部在中间部段包括凹部，所述凹部自所述柱形通道的第一部分起在径向上在整个周长上延伸并且所述凹部邻接所述柱形通道的第二部分，且所述管状件插入端部包括至少一个孔，所述孔将所述凹部与所述主体的外表面相连通。

Description

用于连接管状件的装置、带管状件的装置和粘合胶的组合结 构以及连接管状件和装置的方法
技术领域
本发明涉及用于将管状件如软管或配管连接至液压系统或气动系统的另一个部件的装置，所述装置包括具有连接端部和管状件插入端部的主体，所述主体具有从所述连接端部延伸至所述管状件插入端部的柱形通道，其中所述连接端部用于连接至所述液压系统或气动系统的另一部件，且所述柱形通道包括第一部分和第二部分，其中所述第一部分布置在管状件插入端部内，且所述第二部分布置在所述连接端部内。
背景技术
常用的液压软管接头通过将该接头压接在管上而被附接以形成软管组件。软管接头的变形要求需对接头施加高机械力的专用压接机。在不造成不期望的弯曲、破碎或裂纹的情况下得到一致变形是有困难的。此外，通过使软管的表面凹陷而获得的密封的紧密性由压接作用在软管的整个周长上实现一致的凹陷的程度来确定。
接头通过压接作用形成的塑性变形(通常仅通过路径控制)可以通过减小壁厚、裂纹或不均匀的力分布而易于导致组件的脆弱性。
用于将压接接头附接至管的压接机需要与接头的类型和其直径相对应的压接模具。需要将许多不同的组合结构考虑在内，管和接头新的组合结构通常还需要一套新模具。在需要现场更换接头的情况下这尤其麻烦，这意味着需要将许多工具的变型体带到现场。同样尤其是在现场替换接头时，使所需的压接机恰当地接近接头也是十分繁琐的。
常用的压接管接头还从内部对管进行支撑，以在接头和管之间实现高压接力。但这会减小内径，不利地影响到流动性，例如像在整个组件上引起不期望的压降或者引起湍流，并且进一步在接头中引起机械应力。
现今的接头主要由金属加工而成，因为其具有压接所需的大变形能力。不能轻易使用替换材料如复合材料，像超高强度聚合物或聚合物金属基，即使替换材料相较于金属而言能够带来其它益处。
例如WO2012008371公开了通过施加胶粘剂将端面结构附接至管状件。
强化软管和管套之间的通道填充有胶粘剂，但是该通道未在管端部被密封。施加至软管的力由此仅通过施加在管套的周向内表面上的胶粘剂传递至管套。胶粘剂和管套之间的力传递由此仅取决于胶粘剂的粘接强度。
发明内容
本发明的目的是减少或者甚至消除上述缺点。
根据本发明，该目的通过根据前序部分的装置实现，其特征在于，管状件插入端部在中间部段处包括凹部，该凹部自柱形通道起在径向上在整个周长上延伸并且邻接柱形通道的第二部分；以及管状件插入端部包括至少一个孔，该孔将所述凹部与主体的外表面相连通。
通过使凹部与主体的外表面连通，提供用于将粘合胶引入装置的工具。这允许管状件无需压接地由接头所保持，通过粘合胶实现在管状件和接头之间的密封连接。该连接可如此形成：简单地将管状件插入管状件插入端部以及在经由孔将粘合胶供入凹部之前牢牢地密封住管状件、凹部和柱形通道的第二部分之间的间隙。粘合胶接下来保持住管状件并且在管状件和装置之间提供密封。管承受的力经由粘合胶通过胶粘强度和归因于空腔的粘合胶与管套间的形状限定连接被传递至管套。这在粘合胶和管套之间形成更强连接。
在该装置的优选实施例中，柱形通道的第一部分的直径大于第二部分，并且当从柱形通道的轴向看时第一部分和第二部分是同心的。通过选取对应于管状件外径的较大直径和对应于管状件内径的较小直径，可形成未对内径进行限制的组件。另外，此实施例允许管状件完全密封该凹部。减小的直径也用作止挡件以指示管状件已经插入足够深。
在根据本发明的装置的另一个实施例中，至少一个突起布置在柱形通道的第一部分内。该(多个)突起可辅助管状件在接头内定位，从而组装被更加简化。该(多个)突起也可用作定位辅助或具体地说用作止挡件，从而粘合胶也可到达管状件的切口表面。
本发明还涉及根据本发明的装置、管状件和粘合胶的组合结构，其中管状件的外径对应于柱形通道的第一部分的内径，其中管状件端部延伸入包括凹部的中间部段，并且该凹部填充有粘合胶。
在根据本发明的组合结构的另一个优选实施例中，管状件的内径对应于柱形通道的第二部分的内径。
本发明还涉及根据本发明的装置与管状件的连接方法，其中该方法包括以下步骤：
-提供具有管状通道的管状件；
-提供根据本发明的装置；
-至少部分沿凹部将管状件插入管状件插入端部；
-将凹部同管状通道和装置的柱形通道的第二部分间密封隔绝；
-提供粘合胶；
-经由至少一个孔供给粘合胶来填充凹部。
通过根据本发明的方法，接头可与管状件轻松连接，使得对应直径相对应并且施加粘合胶以粘接或者密封管状件与装置之间的连接。该方法并不涉及包括高机械力的步骤，由此不一定需要采用机器进行连接。从凹部处密封管状通道可如此完成：将密封体插入管状通道或者将密封体紧靠至位于管状件的端部的环形表面。另外，通过修平管状件(例如增强管)的端部，表面可在凹部内露出，这提升了管状件和粘合胶之间的结合。
粘合胶可由此也用作弹性隔层以提供阻尼并吸收振动力。
带有凹部的接头提供了化学和机械稳定的设置，以施加高级粘合剂或结合化合物，无需操作人员提供其它设备。这意味着操作人员不需要任何特定的专业知识或设备即可制备该组合结构。
本发明的方法的另一个实施例还包括以下步骤：
-提供密封体；
-将所述密封体插入所述柱形通道内以密封所述柱形通道的第二部分；
其中所述密封体被部分插入所述管状通道内以从所述凹部处密封所述管状通道。密封体简化了其中在管状通道、凹部和柱形通道的第二部分之间得到适当密封的步骤。这放宽了对管状件的切口的直角度的要求并且确保了在所得组件内具有连续通道。
附图说明
本发明的这些和其它特征将结合附图进行说明。
图1示出根据本发明的装置的第一实施例的剖视图。
图2A-2D示出了根据本发明的方法的实施例的不同步骤。
图3示出根据本发明的装置的第二实施例的剖视图。
具体实施方式
图1示出了根据本发明的液压软管接头1、2的剖视图。接头的主体具有供液压软管插入的端部1和用于连接至液压系统的另一部件的端部2。柱形通道3、4从管插入端部1延伸至连接端部2。柱形通道3的第一部分布置在管插入端部1内，柱形通道4的第二部分布置在连接端部2内。
管插入端部1具有凹部5和用于将凹部5与接头的外表面连通的孔6。
通道3的第一部分具有为D1的直径，通道4的第二部分具有为D2的直径，其中D1大于D2。
图2A-2D示意性示出了根据本发明的方法的实施例的不同步骤。
图2A示出了液压软管7、如图1所示的接头1、2和具有直径D2的芯轴9，液压软管7具有为D3的外径且管8的内部具有为D4的直径。通道3的第一部分的直径D1对应于液压软管7的直径D3，通道4的第二部分和芯轴9的直径D2对应于管8的内部直径D4。
液压软管7在所示步骤中正被插入管插入端部1。
图2B示出了管接头1、2连同被插入管插入端部1内的液压软管7。液压软管7沿凹部5被部分插入，在液压软管7的端部和接头1、2的主体之间留有间隙10。
芯轴9在所示步骤中被插入连接端部2，将管8的内部同间隙10和通道4的第二部分密封隔绝。
图2C示出了管接头1、2连同所插入的液压软管7。芯轴9被插入通道4的第二部分中。芯轴9延伸入液压软管8内以将液压软管8内部同间隙10且由此也同凹部5密封隔绝。粘合胶11经由孔6被供给至凹部5和间隙10，从而凹部5和间隙10被填充。
最后，芯轴9在所示步骤中被移除。
图2D示出了所得到的组合结构12，其包括插入有液压软管7的管接头1、2，其中粘合胶11填充凹部5和间隙10。通过管8的内部、间隙10内的粘合胶和通道4的第二部分形成了未受限的连续通道。
图3示出了根据本发明的管接头21、22的第二实施例的剖视图。接头的主体具有供液压软管插入的端部21和用于连接至液压系统的另一部件的端部22。柱形通道23、24从管插入端部21延伸至连接端部22。柱形通道23的第一部分布置在管插入端部21内，柱形通道24的第二部分布置在连接端部22内。
管插入端部21具有凹部25和将凹部25与接头外表面连通的孔26。
位于通道23的第一部分内的突起27用作管的深度止挡件，其在液压软管组合至接头21、22时确保了合适的插入深度。
本领域技术人员应清楚了解的是，根据本发明的管接头21、22的第二实施例能以与图1、图2A-2D所示出的管接头1、2相同的方式来使用。

Claims (1)

1.一种用于连接装置(1,2；21,22)与管状件(7)的方法，其中所述装置(1,2；21,22)包括具有连接端部(2；22)和管状件插入端部(1；21)的主体，所述主体具有从所述连接端部(2；22)延伸至所述管状件插入端部(1；21)的柱形通道(3,4；23；24)，其中所述连接端部(2；22)用于连接至液压系统或气动系统的另一部件，并且其中所述柱形通道(3,4；23,24)包括第一部分(3；23)和第二部分(4；24)，其中所述第一部分(3；23)布置在管状件插入端部(1；21)内，并且所述第二部分(4；24)布置在所述连接端部(2；22)内，其特征在于，所述管状件插入端部(1；21)在中间部段包括凹部(5；25)，所述凹部自所述柱形通道的第一部分(3；23)起在径向上在整个周长上延伸，并且所述凹部(5；25)邻接所述柱形通道的第二部分(4；24)，其中所述管状件插入端部(1；21)包括至少一个孔(6；26)，所述孔将所述凹部(5；25)与所述主体的外表面相连通,其中所述方法包括以下步骤：
-提供具有管状通道(8)的管状件(7)；
-提供所述的装置(1,2；21,22)；
-至少部分沿所述凹部(5；25)将所述管状件(7)插入所述管状件插入端部(1；21)中；
-将所述凹部(5；25)同所述管状通道(8)和所述装置(1,2；21,22)的柱形通道的第二部分(4；24)密封隔绝；
-提供粘合胶(11)；
-通过至少一个所述孔(6；26)供给所述粘合胶(11)地填充所述凹部(5；25)，还包括以下步骤：
-提供密封体(9)；
-将所述密封体(9)插入所述柱形通道(3,4；23；24)以密封所述柱形通道的第二部分(4；24)；
其中所述密封体(9)被部分插入所述管状通道(8)以将所述凹部(5；25)同所述管状通道(8)密封隔绝；
-在向所述凹部(5；25)填充所述粘合胶(11)后，从所述柱形通道的第二部分(4；24)移除所述密封体(9)。
CN202010076076.8A 2019-01-25 2020-01-22 用于连接管状件的装置、带管状件的装置和粘合胶的组合结构以及连接管状件和装置的方法 Active CN111486288B (zh)

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