WO2020029335A1 - 一种公牙接头结构 - Google Patents

一种公牙接头结构 Download PDF

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Publication number
WO2020029335A1
WO2020029335A1 PCT/CN2018/102288 CN2018102288W WO2020029335A1 WO 2020029335 A1 WO2020029335 A1 WO 2020029335A1 CN 2018102288 W CN2018102288 W CN 2018102288W WO 2020029335 A1 WO2020029335 A1 WO 2020029335A1
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Prior art keywords
tooth joint
water pipe
male tooth
male
pipe
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PCT/CN2018/102288
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English (en)
French (fr)
Inventor
梁焕照
尤棠杰
李述龙
宋振祯
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中山市庆谊金属制品企业有限公司
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Application filed by 中山市庆谊金属制品企业有限公司 filed Critical 中山市庆谊金属制品企业有限公司
Publication of WO2020029335A1 publication Critical patent/WO2020029335A1/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
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/08—Screw-threaded joints; Forms of screw-threads for such joints with supplementary elements

Definitions

  • the invention relates to the technical field of water pipes, in particular to a male tooth joint structure.
  • Water pipe is a water supply pipe, which is used in a variety of fields. Currently, garden construction is widely used. Water pipes play an irreplaceable role in greening gardens. Buried sprinklers are the most common and widely used in urban greening irrigation. There are three types of water pipes used. The first category is metal pipes, such as plastic-lined hot-dip cast iron pipes, copper pipes, and stainless steel pipes. The second category is plastic-clad metal pipes, such as plastic-clad steel pipes. Aluminum-plastic composite pipes, etc .; the third category is plastic pipes, such as PB, PP-R; water pipe joints are a component used to connect water pipes. Water pipe joints can be divided into: externally threaded end-type water pipe joints, ferrule-type water pipe joints, self-fixing water pipe joints; externally threaded water pipe joints are made of zinc alloy die-casting and machined from aluminum and copper.
  • the traditional male connector water pipe assembly method is to first assemble the copper sheath B and the male joint A, and then use a machine to crimp the copper sheath B to fix it on the male joint A. . Then the water pipe D and the copper sleeve C are put into the copper sheath B in turn, and then the copper sheath B is expanded in the machine to make the water pipe D compact; however, the flanged copper sheath is used to expand the copper sheath inward, which is costly and assembled. The process is complicated and the production efficiency is low.
  • the present invention researches and proposes the deficiencies in the prior art.
  • the technical problem to be solved by the present invention is to provide a male tooth joint structure with simple structure, reasonable design and cost saving.
  • a male tooth joint structure which is characterized by including a male tooth joint sleeved on the outside of a water pipe, and further comprising a male tooth joint provided with one end inserted therein
  • a connecting pipe on the inner wall of the water pipe, and a plurality of annular protrusions are provided on the inner side wall of one end of the male tooth joint connected to the water pipe, and the annular protrusion and the connecting pipe are press-fitted to fix the water pipe on the male tooth joint structure.
  • a male tooth joint structure as described above characterized in that the male tooth joint includes a first connection portion and a second connection portion, and an outer side wall of the first connection portion is provided with a thread; the annular protrusion The step is disposed on an inner side wall of the second connection portion, and a connection is formed between the first connection portion and the second connection portion.
  • a male tooth joint structure as described above characterized in that the connecting pipe includes a connecting part connected to the male tooth joint and an external expansion part for inserting into the inner wall of the water pipe and extruding and fitting with the annular protrusion.
  • An annular boss is formed at a joint between the connecting portion and the outer expansion portion, and the annular boss abuts on a step.
  • a male tooth joint structure as described above characterized in that one end of the connecting part is bent outward to form a bent part, and the bent part cooperates with the annular boss to fix the connecting pipe in the male tooth joint.
  • the male tooth joint structure described above is characterized in that the longitudinal section of the inner side wall of the second connecting portion is wavy in projection.
  • a male tooth joint structure of the present invention achieves the following effects:
  • a male tooth joint structure of the present invention omits a copper sleeve.
  • An inner side wall of one end of the male tooth joint connected to a water pipe is provided with a ring-shaped protrusion, and the ring-shaped protrusion and the connection pipe are squeezed to fix the water pipe.
  • the process flow is simplified, the assembly is convenient, the production efficiency is provided, and the cost is saved.
  • Figure 3 is a sectional view of the present invention.
  • a male tooth joint structure includes a male tooth joint 1 which is sleeved on the outside of the water pipe 3, and further includes a connection pipe 2 disposed in the male tooth joint 1 and inserted into the inner wall of the water pipe 3 at one end.
  • the inner side wall of one end of the male tooth joint 1 connected to the water pipe 3 is provided with a plurality of annular protrusions 101.
  • the annular protrusion 101 and the connecting pipe 2 are press-fitted to fix the water pipe 3 on the male tooth joint structure.
  • the present invention omits a copper sleeve, and an inner side wall of one end of the male tooth joint connected to the water pipe is provided with a ring protrusion.
  • the ring protrusion and the connection pipe are squeezed to fix the water pipe to the male tooth joint structure, simplifying Process flow, easy assembly, providing production efficiency and cost savings.
  • the male tooth joint 1 includes a first connection portion 11 and a second connection portion 12, and an outer wall of the first connection portion 11 is provided with a thread;
  • An annular protrusion 101 is provided on an inner side wall of the second connection portion 12, and a step 102 is formed at a connection between the first connection portion 11 and the second connection portion 12.
  • connection pipe 2 includes a connection portion 21 connected to the male tooth joint 1 and a connector for inserting the inner wall of the water pipe 3 and press-fitting the annular protrusion 101.
  • An outer enlarged portion 22 is formed with a ring-shaped boss 201 at a connection portion between the connection portion 21 and the outer enlarged portion 22, and the ring-shaped boss 201 abuts on the step 102.
  • the connecting tube 2 is restricted from moving outward.
  • connection pipe 21 One end of the connecting portion 21 is bent outward to form a bent portion 202.
  • the bent portion 202 cooperates with the annular boss 201 so that the connecting pipe 2 is fixed in the male joint 1.
  • the connection pipe is further restricted from moving to both sides, and the fixing effect is good.
  • the longitudinal projection of the inner side wall of the second connecting portion 12 is wavy in shape, instead of the original copper sleeve, saving cost and simple assembly.
  • Assembly method firstly assemble the connecting pipe with the male joint, and then press the connecting pipe to form the bending portion 202, and cooperate with the annular boss 201 to fix the male joint; then, put the water pipe into the connecting pipe
  • the outer expansion portion 2 of 2 is used to cooperate with the annular protrusion 101 to make the water pipe compact.

Landscapes

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

Abstract

一种公牙接头结构，包括有套接在水管（3）外部的公牙接头（1），还包括有设置在公牙接头内且一端插入水管内壁的连接管（2），该公牙接头连接水管的一端内侧壁设置有若干环形凸起（101），该环形凸起与连接管挤压配合将水管固定在公牙接头结构上。相比于原有的结构，该公牙接头结构省去了铜套，简化了工艺流程，组装方便，提高了生产效率，节约了成本。

Description

一种公牙接头结构 【技术领域】
本发明涉及水管技术领域,具体涉及一种公牙接头结构。
【背景技术】
水管是供水的管道，用于多种领域，现在的园林建设通常较广的用到，水管在绿化园林方面起着不可替代的作用，园林地埋喷头是城市绿化灌溉中最为常见，并且被广泛运用的一种产品，水管的分类有三种，第一类是金属管，如内搪塑料的热镀铸铁管、铜管、不锈钢管等，第二类是塑复金属管，如塑复钢管，铝塑复合管等；第三类是塑料管，如PB、PP-R；水管接头是用来连接水管的一种部件。水管接头按使用方式可分为：外螺纹端接式水管接头、卡套式水管接头、自固式水管接头；外螺纹端接式水管接头用锌合金材料压铸，铝、铜车加工而成。
如图1和图2所示，传统的公牙接头水管装配方式为先将铜皮B与公牙接头A组装在一起，再用机器将铜皮B压翻边得以固定在公牙接头A上。然后将水管D、铜套C依次套进铜皮B，再用机器内扩铜皮B使得压紧水管D；但是使用外加翻边铜套，内扩铜皮芯的方式固定，成本高，组装工艺复杂，生产效率低。
本发明即针对现有技术中的不足而研究提出。
【发明内容】
本发明要解决的技术问题是提供一种公牙接头结构，结构简单，设计合理，节省成本。
为解决上述技术问题，本发明采用了下述技术方案：一种公牙接头结构，其特征在于，包括有套接在水管外部的公牙接头，还包括有设置在公牙接头内且一端插入水管内壁的连接管，所述公牙接头连接水管的一端内侧壁设置有若干环形凸起，所述环形凸起与连接管挤压配合将水管固定在公牙接头结构上。
如上所述的一种公牙接头结构，其特征在于，所述公牙接头包括有第一连接部和第二连接部，第一连接部的外侧壁上设置有螺纹；所述的环形凸起设置在所述第二连接部的内侧壁，所述第一连接部与第二连接部的连接处形成有台阶。
如上所述的一种公牙接头结构，其特征在于，所述的连接管包括有与公牙接头连接的连接部和用于插入水管内壁并与环形凸起挤压配合的外扩部，所述连接部与外扩部的连接处形成有环形凸台，所述环形凸台抵靠在台阶上。
如上所述的一种公牙接头结构，其特征在于，所述连接部的一端向外弯折形成有弯折部，所述弯折部与环形凸台配合使得连接管固定在公牙接头内。
如上所述的一种公牙接头结构，其特征在于，所述第二连接部的内侧壁纵截面投影呈波浪形。
与现有技术相比，本发明的一种公牙接头结构，达到了如下效果：
本发明的一种公牙接头结构，相比于原有的结构，省去铜套，公牙接头连接水管的一端内侧壁设置有环形凸起，环形凸起与连接管挤压配合将水管固定在公牙接头结构上，简化工艺流程，组装方便，提供生产效率，节约成本。
【附图说明】
下面结合附图对本发明的具体实施方式作进一步详细说明，其中：
图1为现有的接头结构的分解图；
图2为本发明的分解图；
图3为本发明的剖面图；
【具体实施方式】
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。
如图1至图3所示，一种公牙接头结构，包括有套接在水管3外部的公牙接头1，还包括有设置在公牙接头1内且一端插入水管3内壁的连接管2，所述公牙接头1连接水管3的一端内侧壁设置有若干环形凸起101，所述环形凸起101与连接管2挤压配合将水管3固定在公牙接头结构上。本发明相比于原有的结构，省去铜套，公牙接头连接水管的一端内侧壁设置有环形凸起，环形凸起与连接管挤压配合 将水管固定在公牙接头结构上，简化工艺流程，组装方便，提供生产效率，节约成本。
如图1至图3所示，在本实施例中，所述公牙接头1包括有第一连接部11和第二连接部12，第一连接部11的外侧壁上设置有螺纹；所述的环形凸起101设置在所述第二连接部12的内侧壁，所述第一连接部11与第二连接部12的连接处形成有台阶102。
如图1至图3所示，在本实施例中，所述的连接管2包括有与公牙接头1连接的连接部21和用于插入水管3内壁并与环形凸起101挤压配合的外扩部22，所述连接部21与外扩部22的连接处形成有环形凸台201，所述环形凸台201抵靠在台阶102上。限制连接管2向外侧运动。
所述连接部21的一端向外弯折形成有弯折部202，所述弯折部202与环形凸台201配合使得连接管2固定在公牙接头1内。进一步限制连接管向两侧移动，固定效果好。
如图1至图3所示，在本实施例中，所述第二连接部12的内侧壁纵截面投影呈波浪形，代替原有的铜套，节省成本，组装简单。
组装方式：先将连接管与公牙接头组装在一起，再用机器将连接管压翻形成弯折部202，与环形凸台201配合得以固定在公牙接头上；然后将水管套进连接管2的外扩部22,再用机器内扩外扩部22与环形凸起101配合使得压紧水管。

Claims (5)

  1. 一种公牙接头结构，其特征在于，包括有套接在水管(3)外部的公牙接头(1)，还包括有设置在公牙接头(1)内且一端插入水管(3)内壁的连接管(2)，所述公牙接头(1)连接水管(3)的一端内侧壁设置有若干环形凸起(101)，所述环形凸起(101)与连接管(2)挤压配合将水管(3)固定在公牙接头结构上。
  2. 根据权利要求1所述的一种公牙接头结构，其特征在于，所述公牙接头(1)包括有第一连接部(11)和第二连接部(12)，第一连接部(11)的外侧壁上设置有螺纹；所述的环形凸起(101)设置在所述第二连接部(12)的内侧壁，所述第一连接部(11)与第二连接部(12)的连接处形成有台阶(102)。
  3. 根据权利要求2所述的一种公牙接头结构，其特征在于，所述的连接管(2)包括有与公牙接头(1)连接的连接部(21)和用于插入水管(3)内壁并与环形凸起(101)挤压配合的外扩部(22)，所述连接部(21)与外扩部(22)的连接处形成有环形凸台(201)，所述环形凸台(201)抵靠在台阶(102)上。
  4. 根据权利要求3所述的一种公牙接头结构，其特征在于，所述连接部(21)的一端向外弯折形成有弯折部(202)，所述弯折部(202)与环形凸台(201)配合使得连接管(2)固定在公牙接头(1)内。
  5. 根据权利要求2所述的一种公牙接头结构，其特征在于，所述第二连接部(12)的内侧壁纵截面投影呈波浪形。
PCT/CN2018/102288 2018-08-10 2018-08-24 一种公牙接头结构 WO2020029335A1 (zh)

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CN101243280A (zh) * 2005-07-08 2008-08-13 乌波诺尔创新股分公司 管接头
CN102679059A (zh) * 2012-05-02 2012-09-19 中山市庆谊金属制品企业有限公司 一种水管接头
CN104272003A (zh) * 2012-05-11 2015-01-07 东尾机械株式会社 管接头
CN205689939U (zh) * 2016-01-11 2016-11-16 宝鸡市铭坤有色金属有限公司 用于高压输油管的螺纹连接装置
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