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CN201672200U - External reinforced hot-melting fastening type pipe fitting - Google Patents

External reinforced hot-melting fastening type pipe fitting Download PDF

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CN201672200U
CN201672200U CN2010201889814U CN201020188981U CN201672200U CN 201672200 U CN201672200 U CN 201672200U CN 2010201889814 U CN2010201889814 U CN 2010201889814U CN 201020188981 U CN201020188981 U CN 201020188981U CN 201672200 U CN201672200 U CN 201672200U
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杨蒙
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Abstract

The utility model discloses an outer reinforcing hot melt fastening formula pipe fitting to solve the poor defect of fastening pipe fitting suitability among the prior art. The utility model discloses a plastic connector, supplementary fastener and fastening nut, skin at every link central authorities is equipped with the metal enhancement layer, skin hot melt surface that is equipped with in every link both ends, be equipped with the fastening external screw thread on the metal enhancement layer, but the supplementary fastener setting on the compound pipe of treating the hot melt fastening of suit is between plastic connector and fastening nut, be equipped with the nut internal thread that can with fastening external screw thread adaptation at fastening nut's internal surface, fastening nut passes through the nut internal thread and fastens the spiro union and the supplementary fastener of external screw thread, plastic connector presss from both sides and becomes integrative. The utility model discloses an outer reinforcing hot melt fastening formula pipe fitting can be applicable to the use sight of multiple compound pipe, firm in connection, and the compressive resistance is strong, and the leakproofness is good, convenient to use.

Description

一种外增强热熔紧固式管件 An externally reinforced hot-melt fastening pipe fitting

技术领域technical field

本实用新型涉及一种管道连接管件,用于内外层为塑料的“塑料—金属—塑料”的涉及管材的连接。The utility model relates to a pipe connecting pipe fitting, which is used for the connection of "plastic-metal-plastic" pipe materials whose inner and outer layers are plastic.

背景技术Background technique

现有技术中,纯塑料管无法获得较高的承受压力,纯金属管防腐性能不佳,而复合管一方面解决了纯塑料管强度较差的问题,一方面解决了金属材料管防腐性能不佳的问题。In the prior art, pure plastic pipes cannot obtain higher bearing pressure, and pure metal pipes have poor anticorrosion performance, while composite pipes solve the problem of poor strength of pure plastic pipes on the one hand, and solve the problem of poor anticorrosion performance of metal material pipes on the other hand. good question.

金属-塑料复合管的种类非常繁多,按照结构主要分成四大类:There are many types of metal-plastic composite pipes, which are mainly divided into four categories according to the structure:

1、内层塑料+外层金属两层复合结构,这种管道的典型代表是:钢衬塑复合管,金属层可为焊管、镀锌管、无缝管、塑料层,根据实际用途选择,主要有聚乙烯(PE)、耐热聚乙烯(PE-RT)、ABS、PPR、PA等,参考技术规程:CECS125-2001建筑给水钢塑复合管管道工程技术规程、热拉拨成型铝合金衬塑管(CJ/T321-2010城镇建设行业标准)、内涂塑复合管(参考标准:CJ/T120-2001《给水涂塑复合钢管》城镇建设行业标准)。1. Two-layer composite structure of inner plastic + outer metal. The typical representative of this kind of pipe is: steel-lined plastic composite pipe. The metal layer can be welded pipe, galvanized pipe, seamless pipe, and plastic layer. It can be selected according to the actual use. Mainly include polyethylene (PE), heat-resistant polyethylene (PE-RT), ABS, PPR, PA, etc., refer to technical regulations: CECS125-2001 technical regulations for building water supply steel-plastic composite pipes, hot-drawn aluminum alloy lining Plastic pipe (CJ/T321-2010 urban construction industry standard), inner plastic-coated composite pipe (reference standard: CJ/T120-2001 "Plastic-coated composite steel pipe for water supply" urban construction industry standard).

2、内层塑料+热熔胶粘接层+外层金属三层复合结构,这类管道的典型代表为:不锈钢衬塑管(参考标准号:CJ/T184-2003不锈钢衬塑管建设行业标准)。2. Three-layer composite structure of inner plastic + hot melt adhesive layer + outer metal. The typical representative of this type of pipe is: stainless steel lined plastic pipe (reference standard number: CJ/T184-2003 stainless steel lined plastic pipe construction industry standard ).

3、内层塑料+中间层金属+外层塑料三层复合结构,这种管道的典型代表是:孔网钢带聚乙稀复合管(参考CJ/T183-2003),钢骨架聚乙稀塑料复合管(参考CJ/T123-2004),这两种管材其金属层的网状结构决定这两类管材无需使用热熔胶粘接层;另外还有一种内外涂塑钢塑复合管,但其实际生产工艺中,在粉状的塑料原料备制中,实际渗入了热熔胶粘胶剂,因为明确的“层结构”,所以可划为该三层复合结构(《给水涂塑复合钢管》(CJ/T120-2001)城镇建设行业标准)。3. Three-layer composite structure of inner layer plastic + middle layer metal + outer layer plastic. Typical representatives of this kind of pipeline are: perforated steel belt polyethylene composite pipe (refer to CJ/T183-2003), steel skeleton polyethylene plastic Composite pipe (refer to CJ/T123-2004), the network structure of the metal layer of these two types of pipes determines that these two types of pipes do not need to use hot-melt adhesive layers; there is also a plastic-coated steel-plastic composite pipe inside and outside, but its actual In the production process, in the preparation of powdery plastic raw materials, the hot melt adhesive is actually infiltrated. Because of the clear "layer structure", it can be classified as the three-layer composite structure ("Plastic-coated Composite Steel Pipe for Water Supply" ( CJ/T120-2001) Urban Construction Industry Standard).

4、内层塑料+热熔胶粘接层+中间层金属+热熔胶粘接层+外层塑料五层复合结构复合管,这类管材主要有:钢丝网骨架塑料复合管(参考CJ/T189-2007)、PSP钢塑复合压力管(参考CJ/T183-2003),RPAP5对接焊铝塑复合管(参考CJ/T 159--2006)、对接或搭接焊铝塑复合压力管(参考GBT18997-2003铝塑复合压力管)、钢丝编织网聚乙稀复合管(暂无标准)。4. Inner layer plastic + hot melt adhesive layer + middle layer metal + hot melt adhesive layer + outer plastic five-layer composite structure composite pipe, this type of pipe mainly includes: steel mesh skeleton plastic composite pipe (refer to CJ/ T189-2007), PSP steel-plastic composite pressure pipe (refer to CJ/T183-2003), RPAP5 butt welded aluminum-plastic composite pipe (refer to CJ/T 159--2006), butt or lap welded aluminum-plastic composite pressure pipe (refer to GBT18997-2003 aluminum-plastic composite pressure pipe), steel wire braided polyethylene composite pipe (no standard yet).

以上四类,在金属层方面的定义均非常明确,而塑料层则根据实际使用需要采用:聚乙烯(PE)、耐热聚乙烯(PE-RT)、PB、PPR、PA等。The above four categories are very clearly defined in terms of metal layers, while plastic layers are used according to actual needs: polyethylene (PE), heat-resistant polyethylene (PE-RT), PB, PPR, PA, etc.

复合管的出现,一方面解决了纯塑料管强度较差的问题(纯塑料管无法获是较高的承受压力),另一方面解决了金属材料管防腐性能不佳的问题。The emergence of composite pipes, on the one hand, solves the problem of poor strength of pure plastic pipes (pure plastic pipes cannot obtain high pressure), and on the other hand, solves the problem of poor corrosion resistance of metal material pipes.

对于上述金属-塑料型复合管的连接方式,主要应考虑如下制造特点:For the connection method of the above-mentioned metal-plastic composite pipe, the following manufacturing characteristics should be mainly considered:

1、管材:对于第1类(内层塑料+外层金属两层复合结构)、第2类(内层塑料+热熔胶粘接层+外层金属三层复合结构)金属-塑料型复合管,由于金属层在塑料层的外面,因此金属必须有良好的耐腐蚀性,否则寿命无法保证,比如采用铝合金或者不锈钢;而第3类(内层塑料+中间层金属+外层塑料三层复合结构复合管)、第4类(内层塑料+热熔胶粘接层+中间层金属+热熔胶粘接层+外层塑料五层复合结构复合管),因为金属被包裹在内外层塑料中间,则金属可以采用多种材料:比如钢丝,不锈钢,钢带,铝带等,此两类复合管有良好的耐腐蚀性。1. Pipe material: For Type 1 (inner plastic + outer metal two-layer composite structure), Type 2 (inner plastic + hot melt adhesive layer + outer metal three-layer composite structure) metal-plastic composite Because the metal layer is outside the plastic layer, the metal must have good corrosion resistance, otherwise the service life cannot be guaranteed, such as aluminum alloy or stainless steel; and the third type (inner plastic + middle metal + outer plastic three layer composite structure composite pipe), category 4 (inner layer plastic + hot melt adhesive layer + middle layer metal + hot melt adhesive layer + outer plastic five-layer composite structure composite pipe), because the metal is wrapped inside and outside In the middle of the plastic layer, the metal can be made of various materials: such as steel wire, stainless steel, steel strip, aluminum strip, etc. These two types of composite pipes have good corrosion resistance.

2、管材连接件:无论任何连接方式,除金属层为不锈钢的复合管外,都必须考虑金属层与输送介质不能接触,否则会造成金属层的腐蚀,一方面污染介质,一方面因为金属层锈蚀,影响管道的实际承压及使用寿命。2. Pipe connectors: Regardless of any connection method, except for composite pipes whose metal layer is stainless steel, it must be considered that the metal layer cannot be in contact with the conveying medium, otherwise it will cause corrosion of the metal layer. Corrosion affects the actual pressure and service life of the pipeline.

现有的对上述管材所采用的连接方式主要有:The existing connection methods used for the above-mentioned pipes mainly include:

1、申请号为00224343.1、授权公告日为2000年12月13日、名称为“不锈钢薄管接头装置”的中国实用新型专利和申请号为02276827.0、授权公告日为2003年7月30日、名称为“金属薄管接头装置”的中国实用新型专利分别公开了螺纹卡套式连接件,该种管件的特点是:适合各种类型的金属塑料复合管,但材料使用铜或不锈钢,价格昂贵,可靠性差;1. The application number is 00224343.1, the authorized announcement date is December 13, 2000, the Chinese utility model patent and application number is 02276827.0, the authorized announcement date is July 30, 2003, and the name is "stainless steel thin pipe joint device". The Chinese utility model patent for "metal thin pipe joint device" respectively discloses threaded ferrule-type connectors. The characteristics of this type of pipe fittings are: suitable for various types of metal-plastic composite pipes, but the materials are copper or stainless steel, which is expensive. Poor reliability;

申请号为200720184505.3、授权公告日为2008年8月6日、名称为“管道扩口连接结构”的中国实用新型专利采用了硬度较高的塑料,但其完全依靠橡胶密封,不适用大口径管道,同时橡胶容易老化,影响管路系统寿命;The application number is 200720184505.3, the authorized announcement date is August 6, 2008, and the Chinese utility model patent titled "Pipe Flare Connection Structure" uses plastic with high hardness, but it completely relies on rubber seals and is not suitable for large-diameter pipes , at the same time, the rubber is easy to age, which affects the life of the piping system;

2、申请号为00218383.8、授权公告日为2001年6月27日、名称为“卡压式管件”的中国实用新型专利和申请号为200320129209.5、授权公告日为2004年12月15日、名称为“热熔卡压式复合管件”的中国实用新型专利分别公开了热熔(或承插)卡压式管件,主要适用于不锈钢衬塑管,性能较好,但基本上单一依靠管材的内壁热熔,可靠性略显不足;2. The application number is 00218383.8, the authorized announcement date is June 27, 2001, the Chinese utility model patent and application number is 200320129209.5, the authorized announcement date is December 15, 2004, and the name is The Chinese utility model patents of "hot-melt compression composite pipe fittings" respectively disclose hot-melt (or socket) compression-type pipe fittings, which are mainly suitable for stainless steel-lined plastic pipes. melting, the reliability is slightly insufficient;

3、纯塑料热熔管件,该种管件在安装之前要将熔接位置的外层金属剥去,由于在连接位置没有金属增强,则承压大幅降低,牢固性差;3. For pure plastic hot-melt pipe fittings, the outer layer of metal at the welding position must be stripped off before installation. Since there is no metal reinforcement at the connection position, the pressure will be greatly reduced and the firmness will be poor;

4、申请号为200520101882.7、授权公告日为2006年7月19日、名称为“双面热熔承插接头”的中国实用新型专利公开了一种适合外层塑料+中间层金属+内层塑料以及中间再加两层粘接材料的管材的连接件,如铝塑复合管、RPAP5、PSP钢塑复合压力管、孔网钢带增强塑料复合管,该种连接件连接比较可靠、成本较低,力学上欠缺考虑,稳固性不足。4. The Chinese utility model patent with the application number 200520101882.7, the date of authorization announcement is July 19, 2006, and the name "double-sided hot-melt socket joint" discloses a suitable outer layer plastic + middle layer metal + inner layer plastic And the connectors of pipes with two layers of adhesive materials in the middle, such as aluminum-plastic composite pipes, RPAP5, PSP steel-plastic composite pressure pipes, perforated steel belt reinforced plastic composite pipes, which are more reliable and lower in cost , Mechanics lack of consideration, lack of stability.

5、塑料电熔管件,主要为PE类较大口径的钢丝网骨架塑料复合管、孔网钢带增强塑料复合管、钢骨架塑料复合管使用,电熔管件的技术含量较高,连接可靠,缺陷是要求对管材的端口进行严格的封口处理,杜绝端面金属与输送介质接触,常用的方法是使用封口环与管道热熔封口。5. Plastic electrofusion pipe fittings are mainly used for PE steel mesh skeleton plastic composite pipes with larger diameters, perforated mesh steel belt reinforced plastic composite pipes, and steel skeleton plastic composite pipes. The electrofusion pipe fittings have high technical content and reliable connections. The disadvantage is that it is required to strictly seal the end of the pipe to prevent the metal on the end face from contacting the conveying medium. The common method is to use the sealing ring to seal the pipe with hot melt.

在塑料电熔管件的安装过程中,为了保证封口的要求需要使用大型热熔封口设备,而工地施工时常常不具备这样的条件,而对于小口径管,除钢丝网骨架塑料复合管及钢骨架塑料增强复合管之外,其它内层采用金属片材,封口处理更加困难、生产成本较高、安装技术要求高。In the installation process of plastic electrofusion pipe fittings, in order to ensure the sealing requirements, large-scale hot-melt sealing equipment is required, but such conditions are often not available during construction on the construction site. In addition to the plastic-reinforced composite pipe, other inner layers are made of metal sheet, which makes the sealing process more difficult, the production cost is high, and the installation technology requirements are high.

实用新型内容Utility model content

本实用新型的目的是公开一种外增强热熔紧固式管件,以解决现有技术中的紧固管件适用性差的缺陷。The purpose of the utility model is to disclose an externally reinforced hot-melt fastening pipe fitting to solve the defect of poor applicability of the fastening pipe fittings in the prior art.

本实用新型所述的外增强热熔紧固式管件,包括塑料连接件、辅助紧固件和紧固螺帽,塑料连接件包括至少一个连接端,各连接端通过塑料连接件内的通道彼此连通,在每个连接端中央外层设有金属增强层,在每个连接端两端外层设有热熔表面,在金属增强层上设有紧固外螺纹,可套装在待热熔紧固的复合管上的辅助紧固件设置在塑料连接件与紧固螺帽之间,在紧固螺帽的内表面设有可与紧固外螺纹适配的螺帽内螺纹,紧固螺帽通过螺帽内螺纹与紧固外螺纹的螺接与辅助紧固件、塑料连接件夹装成一体。The externally reinforced hot-melt fastening pipe fitting described in the utility model includes a plastic connector, an auxiliary fastener and a fastening nut. The plastic connector includes at least one connecting end, and each connecting end is connected to each other through a channel in the plastic connector. Connected, there is a metal reinforcement layer on the central outer layer of each connection end, and a hot-melt surface is provided on the outer layer at both ends of each connection end, and a fastening external thread is provided on the metal reinforcement layer, which can be set in the hot-melt tight The auxiliary fastener on the solid composite pipe is set between the plastic connector and the fastening nut, and the inner surface of the fastening nut is provided with a nut internal thread that can be adapted to the fastening external thread, and the fastening nut The cap is clamped into one body with auxiliary fasteners and plastic connectors through the screw connection of the inner thread of the nut and the outer thread of the fastening.

其中,辅助紧固件由橡胶或塑料制成。Wherein, the auxiliary fastener is made of rubber or plastic.

其中,外增强热熔紧固式管件还包括金属内衬套,金属内衬套可设置在塑料连接件的连接端的端口内。Wherein, the outer-reinforced hot-melt fastening pipe fitting also includes a metal inner bushing, and the metal inner bushing can be arranged in the port of the connecting end of the plastic connector.

其中,外增强热熔紧固式管件还包括防水紧固橡胶圈,防水紧固橡胶圈夹装于塑料连接件、辅助紧固件之间。Wherein, the externally reinforced hot-melt fastening pipe fitting also includes a waterproof fastening rubber ring, and the waterproof fastening rubber ring is sandwiched between the plastic connecting piece and the auxiliary fastening piece.

其中,外增强热熔紧固式管件还包括辅助紧固圆环,辅助紧固圆环夹装于防水紧固橡胶圈、辅助紧固件之间。Wherein, the outer-reinforced hot-melt fastening pipe fitting also includes an auxiliary fastening ring, and the auxiliary fastening ring is sandwiched between the waterproof fastening rubber ring and the auxiliary fastening piece.

其中,金属内衬套由铜或不锈钢制成。Among them, the metal inner bushing is made of copper or stainless steel.

其中,在塑料连接件连接端的外端边缘分别设有用于盛装热熔表面与复合管热熔连接产生的多余熔料的储料槽。Wherein, the outer edges of the connecting ends of the plastic connectors are respectively provided with storage tanks for containing the excess melting material produced by the hot-melt connection between the hot-melt surface and the composite pipe.

其中,在紧固螺帽的尾端设有螺帽管口,螺帽管口与辅助紧固件的外表面适配,螺帽管口的最大内径小于辅助紧固件的最大外径。Wherein, a nut nozzle is provided at the tail end of the fastening nut, and the nut nozzle is adapted to the outer surface of the auxiliary fastener, and the maximum inner diameter of the nut nozzle is smaller than the maximum outer diameter of the auxiliary fastener.

其中,紧固螺帽的内径自外向内依次增大,辅助紧固件的外径自内向外依次增大。Wherein, the inner diameter of the fastening nut increases sequentially from the outside to the inside, and the outer diameter of the auxiliary fastener increases sequentially from the inside to the outside.

其中,紧固螺帽的内径依次增大的倾斜角度为1-10度,辅助紧固件的外径依次增大的倾斜角度为1-10度。Wherein, the inclination angle at which the inner diameter of the fastening nut increases sequentially is 1-10 degrees, and the inclination angle at which the outer diameter of the auxiliary fastener increases sequentially is 1-10 degrees.

本实用新型的外增强热熔紧固式管件,可以适用于多种复合管的使用情景,连接牢固,抗压力性强,密封性好,使用方便,特别对于内径较小的复合管,其安装尤其方便、紧固尤其牢固、密封性尤其良好、抗压力性尤其强。The externally reinforced hot-melt fastening pipe fitting of the utility model can be applied to a variety of composite pipe usage scenarios, and has firm connection, strong pressure resistance, good sealing performance, and convenient use. It is particularly convenient, particularly firm in fastening, particularly good in sealing performance, and particularly strong in pressure resistance.

附图说明Description of drawings

图1是本实用新型外增强热熔紧固式管件的正视图;Fig. 1 is the front view of the externally reinforced hot-melt fastening pipe fitting of the utility model;

图2是本实用新型外增强热熔紧固式管件的立体图;Fig. 2 is a perspective view of the externally reinforced hot-melt fastening pipe fitting of the utility model;

图3是本实用新型外增强热熔紧固式管件实施例一的A-A向的剖面图;Fig. 3 is an A-A sectional view of Embodiment 1 of the externally reinforced hot-melt fastening pipe fitting of the present invention;

图4是本实用新型外增强热熔紧固式管件实施例一的组装完成状态图;Fig. 4 is a diagram of the assembled state of Embodiment 1 of the externally reinforced hot-melt fastening pipe fitting of the present utility model;

图5是本实用新型外增强热熔紧固式管件实施例二的A-A向的剖面图;Fig. 5 is an A-A sectional view of Embodiment 2 of the externally reinforced hot-melt fastening pipe fitting of the present utility model;

图6是本实用新型外增强热熔紧固式管件实施例二的组装完成状态图。Fig. 6 is a diagram of the assembled state of Embodiment 2 of the externally reinforced hot-melt fastening pipe fitting of the present invention.

结合附图在其上标记以下附图标记:In conjunction with the accompanying drawings, the following reference numerals are marked thereon:

1-塑料连接件,2-金属增强层,3-紧固外螺纹,4-热熔表面,5-储料槽,6-防水紧固橡胶圈,7-辅助紧固圆环,8-辅助紧固件,9-螺帽内螺纹,10-紧固螺帽,11-螺帽管口,12-复合管,13-金属内衬套。1-plastic connector, 2-metal reinforcement layer, 3-fastening external thread, 4-hot-melt surface, 5-storage tank, 6-waterproof fastening rubber ring, 7-auxiliary fastening ring, 8-auxiliary Fastener, 9-nut internal thread, 10-fastening nut, 11-nut nozzle, 12-composite pipe, 13-metal inner bushing.

具体实施方式Detailed ways

下面结合附图,对本实用新型的具体实施方式进行详细描述,但应当理解本实用新型的保护范围并不受具体实施方式的限制。The specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiments.

如图1-图10所示,本实用新型外增强热熔紧固式管件适用于背景技术中的第1类结构(内层塑料+外层金属两层复合结构)、第2类结构(内层塑料+热熔胶粘接层+外层金属三层复合结构)、第3类结构(内层塑料+中间层金属+外层塑料三层复合结构复合管)和第4类结构(内层塑料+热熔胶粘接层+中间层金属+热熔胶粘接层+外层塑料五层复合结构复合管)。As shown in Figures 1 to 10, the utility model's externally reinforced hot-melt fastening pipe fittings are suitable for the first type of structure (inner plastic + outer metal two-layer composite structure) and the second type of structure (inner Layer plastic + hot melt adhesive layer + outer metal three-layer composite structure), the third type of structure (inner layer plastic + middle layer metal + outer layer plastic three-layer composite structure composite pipe) and the fourth type of structure (inner layer Plastic + hot-melt adhesive layer + middle layer metal + hot-melt adhesive layer + outer plastic five-layer composite structure composite pipe).

如图1-4所示,公开了本实用新型的外增强热熔紧固式管件实施例一,本实施例的复合管为普通管口(非扩径管口)。As shown in Figures 1-4, Embodiment 1 of an externally reinforced hot-melt fastening pipe fitting of the present invention is disclosed. The composite pipe of this embodiment is a common nozzle (non-expanded nozzle).

本实施例的外增强热熔紧固式管件包括塑料连接件1、辅助紧固件8和紧固螺帽10,塑料连接件1包括至少一个连接端,各连接端通过塑料连接件1内的通道彼此连通,在每个连接端中央外层设有金属增强层2,在每个连接端两端外层设有热熔表面4,在金属增强层2上设有紧固外螺纹3,辅助紧固件8设置在塑料连接件1与紧固螺帽10之间,用于套装在待热熔的复合管12上,在紧固螺帽10的内表面设有螺帽内螺纹9,螺帽内螺纹9与紧固外螺纹3适配,紧固螺帽10通过螺帽内螺纹9与紧固外螺纹3的螺接与辅助紧固件8、塑料连接件1夹装成一体。The externally reinforced hot-melt fastening pipe fitting of this embodiment includes a plastic connector 1, an auxiliary fastener 8 and a fastening nut 10. The plastic connector 1 includes at least one connection end, and each connection end passes through the plastic connector 1. The passages communicate with each other, a metal reinforcement layer 2 is provided on the outer layer of the center of each connection end, a hot-melt surface 4 is provided on the outer layer at both ends of each connection end, and a fastening external thread 3 is provided on the metal reinforcement layer 2 to assist The fastener 8 is arranged between the plastic connector 1 and the fastening nut 10, and is used to be set on the composite pipe 12 to be melted, and the inner surface of the fastening nut 10 is provided with a nut internal thread 9, and the screw The cap internal thread 9 is adapted to the fastening external thread 3, and the fastening nut 10 is clamped and integrated with the auxiliary fastener 8 and the plastic connector 1 through the screw connection of the nut internal thread 9 and the fastening external thread 3.

需要说明的是,如果将外增强热熔紧固式管件用于连接两根复合管,其连接方式将包括两个连接端,如本实施例所示;如果将外增强热熔紧固式管件用于连接一根复合管的尾端,外增强热熔紧固式管件将只包括一个连接端,与复合管相连。It should be noted that if the externally reinforced hot-melt fastening pipe fitting is used to connect two composite pipes, the connection method will include two connecting ends, as shown in this embodiment; if the externally reinforced hot-melt fastening pipe fitting Used to connect the tail end of a composite pipe, the externally reinforced hot-melt fastening pipe fitting will only include one connection end, which is connected with the composite pipe.

优选地,辅助紧固件8可以由橡胶制成,也可以由塑料制成。Preferably, the auxiliary fastener 8 can be made of rubber or plastic.

优选地,外增强热熔紧固式管件还包括金属内衬套13,设置在塑料连接件1的连接端的端口内,金属内衬套13的设置可以保证复合管管口与外增强热熔紧固式管件的热熔表面4进行热熔处理时,塑料连接件1不会因为软化变形,影响熔接效果,保证了复合管连接的牢固性和紧密性;其中,金属内衬套13由钢或不锈钢制成。Preferably, the externally reinforced hot-melt fastening pipe fittings also include a metal inner bushing 13, which is arranged in the port of the connecting end of the plastic connector 1. The setting of the metal inner bushing 13 can ensure that the nozzle of the composite pipe and the outer reinforced hot-melt tightly When the hot-melt surface 4 of the solid-type pipe fitting is subjected to hot-melt treatment, the plastic connector 1 will not affect the welding effect due to softening and deformation, ensuring the firmness and tightness of the composite pipe connection; wherein, the metal inner bushing 13 is made of steel or Made of stainless steel.

其中,外增强热熔紧固式管件还包括防水紧固橡胶圈6和辅助紧固圆环7,其自内向外依次夹装在塑料连接件1、辅助紧固件8之间。Among them, the externally reinforced hot-melt fastening pipe fittings also include a waterproof fastening rubber ring 6 and an auxiliary fastening ring 7, which are sandwiched between the plastic connector 1 and the auxiliary fastening member 8 sequentially from the inside to the outside.

其中,在塑料连接件1连接端的外端边缘设有储料槽5,用于盛接热熔表面与复合管12热熔连接产生的多余熔料。Wherein, a material storage tank 5 is provided on the outer edge of the connecting end of the plastic connector 1 for receiving excess molten material produced by the thermal fusion connection between the hot-melt surface and the composite pipe 12 .

在本实用新型的外增强热熔紧固式管件中,在紧固螺帽10的尾端设有螺帽管口11,螺帽管口11与辅助紧固件8的外表面适配,螺帽管口11的最大内径小于辅助紧固件8的最大外径,紧固螺帽10的内径自外向内依次增大,辅助紧固件8的外径自内向外依次增大,紧固螺帽10的内径依次增大的倾斜角度为1-10度,辅助紧固件8的外径依次增大的倾斜角度为1-10度。In the externally reinforced hot-melt fastening pipe fitting of the present utility model, a nut nozzle 11 is provided at the tail end of the fastening nut 10, and the nut nozzle 11 is adapted to the outer surface of the auxiliary fastener 8, and the nut nozzle 11 is adapted to the outer surface of the auxiliary fastener 8. The maximum internal diameter of the cap nozzle 11 is smaller than the maximum external diameter of the auxiliary fastener 8, the internal diameter of the fastening nut 10 increases sequentially from the outside to the inside, the external diameter of the auxiliary fastener 8 increases sequentially from the inside to the outside, and the fastening nut 10 increases sequentially from the inside to the outside. The inclination angle of the inner diameter of 10 is 1-10 degrees, and the inclination angle of the outer diameter of auxiliary fastener 8 is 1-10 degrees.

本实施例的外增强热熔紧固式管件在使用时,先将紧固螺帽10、辅助紧固件8、辅助紧固圆环7、防水紧固橡胶圈6依次插装入复合管管口,将复合管的管口插装在塑料连接件1的热熔表面4上,对热熔表面4和复合管进行热熔连接,然后将紧固螺帽10向塑料连接件1的方向压紧,紧固螺帽10的螺帽内螺纹9咬合紧固外螺纹3,将辅助紧固件8、辅助紧固圆环7、防水紧固橡胶圈6紧紧的向塑料连接件1的方向挤压,从而将复合管与外增强热熔紧固式管件牢牢固定。When using the externally reinforced hot-melt fastening pipe fitting of this embodiment, the fastening nut 10, the auxiliary fastener 8, the auxiliary fastening ring 7, and the waterproof fastening rubber ring 6 are sequentially inserted into the composite pipe. Insert the nozzle of the composite pipe on the hot-melt surface 4 of the plastic connector 1, perform hot-melt connection between the hot-melt surface 4 and the composite pipe, and then press the fastening nut 10 in the direction of the plastic connector 1 Tighten, fasten the nut internal thread 9 of the fastening nut 10 to engage the fastening external thread 3, and tighten the auxiliary fastener 8, the auxiliary fastening ring 7, and the waterproof fastening rubber ring 6 to the direction of the plastic connector 1 Extrusion, so that the composite pipe and the outer reinforced hot-melt fastening pipe fittings are firmly fixed.

如图5-6所示,公开了本实用新型的外增强热熔紧固式管件实施例二,本实施例的复合管为扩径管口,本领域的技术人员应该知道,本实施例的外增强热熔紧固式管件的其它结构与实施例一的结构相同,在此不再赘述。As shown in Figures 5-6, the second embodiment of the externally reinforced hot-melt fastening pipe fitting of the present invention is disclosed. The composite pipe of this embodiment is an enlarged diameter nozzle. Those skilled in the art should know that the The other structures of the externally reinforced hot-melt fastening pipe fittings are the same as those in Embodiment 1, and will not be repeated here.

本实用新型的外增强热熔紧固式管件,可以适用于多种复合管的使用情景,连接牢固,抗压力性强,密封性好,使用方便,特别对于内径较小的复合管,其紧固尤其牢固、密封性尤其良好、抗压力性尤其强。The externally reinforced hot-melt fastening pipe fittings of the utility model can be applied to a variety of composite pipe use scenarios, with firm connection, strong pressure resistance, good sealing performance, and convenient use. The solid is particularly strong, the sealing is particularly good, and the pressure resistance is particularly strong.

以上公开的仅为本实用新型的几个具体实施例,但是,本实用新型并非局限于此,任何本领域的技术人员能思之的变化都应落入本实用新型的保护范围。The above disclosures are only a few specific embodiments of the utility model, but the utility model is not limited thereto, and any changes conceivable by those skilled in the art should fall within the protection scope of the utility model.

Claims (10)

1.一种外增强热熔紧固式管件,其特征在于,包括塑料连接件、辅助紧固件和紧固螺帽,所述塑料连接件包括至少一个连接端,各所述连接端通过所述塑料连接件内的通道彼此连通,在每个所述连接端中央外层设有金属增强层,在每个所述连接端两端外层设有热熔表面,在所述金属增强层上设有紧固外螺纹,可套装在待热熔紧固的复合管上的所述辅助紧固件设置在所述塑料连接件与紧固螺帽之间,在所述紧固螺帽的内表面设有可与所述紧固外螺纹适配的螺帽内螺纹,所述紧固螺帽通过所述螺帽内螺纹与紧固外螺纹的螺接与所述辅助紧固件、塑料连接件夹装成一体。1. An externally reinforced hot-melt fastening pipe fitting, characterized in that it includes a plastic connector, an auxiliary fastener and a fastening nut, and the plastic connector includes at least one connecting end, and each of the connecting ends passes through the The passages in the plastic connectors communicate with each other, a metal reinforcement layer is provided on the central outer layer of each of the connection ends, and a hot-melt surface is provided on the outer layers of each of the two ends of the connection end, and on the metal reinforcement layer There is a fastening external thread, and the auxiliary fastener that can be set on the composite pipe to be hot-melt fastened is arranged between the plastic connector and the fastening nut, and inside the fastening nut The surface is provided with a nut internal thread that can be adapted to the fastening external thread, and the fastening nut is connected to the auxiliary fastener and plastic through the screw connection of the nut internal thread and the fastening external thread. The clips fit together. 2.根据权利要求1所述的外增强热熔紧固式管件,其特征在于,所述辅助紧固件由橡胶或塑料制成。2. The externally reinforced hot-melt fastening pipe fitting according to claim 1, wherein the auxiliary fastener is made of rubber or plastic. 3.根据权利要求1所述的外增强热熔紧固式管件,其特征在于,还包括金属内衬套,所述金属内衬套可设置在所述塑料连接件的连接端的端口内。3 . The externally reinforced hot-melt fastening pipe fitting according to claim 1 , further comprising a metal inner bush, and the metal inner bush can be arranged in the port of the connecting end of the plastic connector. 4 . 4.根据权利要求1所述的外增强热熔紧固式管件,其特征在于,还包括防水紧固橡胶圈,所述防水紧固橡胶圈夹装于所述塑料连接件、辅助紧固件之间。4. The externally reinforced hot-melt fastening pipe fitting according to claim 1, characterized in that it also includes a waterproof fastening rubber ring, and the waterproof fastening rubber ring is sandwiched between the plastic connector and the auxiliary fastener between. 5.根据权利要求4所述的外增强热熔紧固式管件,其特征在于,还包括辅助紧固圆环,所述辅助紧固圆环夹装于所述防水紧固橡胶圈、辅助紧固件之间。5. The externally reinforced hot-melt fastening pipe fitting according to claim 4, further comprising an auxiliary fastening ring, the auxiliary fastening ring is clamped on the waterproof fastening rubber ring, the auxiliary fastening ring between firmware. 6.根据权利要求3所述的外增强热熔紧固式管件,其特征在于,所述金属内衬套由铜或不锈钢制成。6. The externally reinforced hot-melt fastening pipe fitting according to claim 3, wherein the metal inner bushing is made of copper or stainless steel. 7.根据权利要求1所述的外增强热熔紧固式管件,其特征在于,在所述塑料连接件连接端的外端边缘分别设有用于盛装所述热熔表面与所述复合管热熔连接产生的多余熔料的储料槽。7. The externally reinforced hot-melt fastening pipe fitting according to claim 1, characterized in that, on the outer edge of the connecting end of the plastic connector, there are respectively provided with the hot-melt surface for holding the hot-melt surface and the composite pipe hot-melt Connect the storage tank for the excess melt produced. 8.根据权利要求1所述的外增强热熔紧固式管件,其特征在于,在所述紧固螺帽的尾端设有螺帽管口,所述螺帽管口与所述辅助紧固件的外表面适配,所述螺帽管口的最大内径小于所述辅助紧固件的最大外径。8. The externally reinforced hot-melt fastening pipe fitting according to claim 1, characterized in that, a nut nozzle is provided at the tail end of the fastening nut, and the nut nozzle is connected to the auxiliary tightening nut. Fitting the outer surface of the fastener, the maximum inner diameter of the nut nozzle is smaller than the maximum outer diameter of the auxiliary fastener. 9.根据权利要求8所述的外增强热熔紧固式管件,其特征在于,所述紧固螺帽的内径自外向内依次增大,所述辅助紧固件的外径自内向外依次增大。9. The externally reinforced hot-melt fastening pipe fitting according to claim 8, characterized in that, the inner diameter of the fastening nut increases sequentially from the outside to the inside, and the outer diameter of the auxiliary fastener increases sequentially from the inside to the outside big. 10.根据权利要求9所述的外增强热熔紧固式管件,其特征在于,所述紧固螺帽的内径依次增大的倾斜角度为1-10度,所述辅助紧固件的外径依次增大的倾斜角度为1-10度。10. The externally reinforced hot-melt fastening pipe fitting according to claim 9, characterized in that, the inclination angle of the inner diameter of the fastening nut increases sequentially from 1 to 10 degrees, and the outer diameter of the auxiliary fastener The inclination angle of the diameter increasing successively is 1-10 degree.
CN2010201889814U 2010-05-13 2010-05-13 External reinforced hot-melting fastening type pipe fitting Expired - Fee Related CN201672200U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103967891A (en) * 2014-05-07 2014-08-06 赵咪咪 Butt-joint-type connecting sleeve
CN113251217A (en) * 2021-06-02 2021-08-13 中国人民解放军92228部队 Enhanced oil delivery hose and oil delivery system
CN113653860A (en) * 2021-09-18 2021-11-16 五行科技股份有限公司 Composite pipe connecting assembly and water supply and drainage pipeline
CN114427625A (en) * 2020-10-29 2022-05-03 中国石油化工股份有限公司 RTP pipe for oil field and connecting mode thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103967891A (en) * 2014-05-07 2014-08-06 赵咪咪 Butt-joint-type connecting sleeve
CN114427625A (en) * 2020-10-29 2022-05-03 中国石油化工股份有限公司 RTP pipe for oil field and connecting mode thereof
CN113251217A (en) * 2021-06-02 2021-08-13 中国人民解放军92228部队 Enhanced oil delivery hose and oil delivery system
CN113653860A (en) * 2021-09-18 2021-11-16 五行科技股份有限公司 Composite pipe connecting assembly and water supply and drainage pipeline

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