CN214425380U - Glass fiber netting reinforced large-caliber high-pressure-resistant polyethylene elbow device - Google Patents
Glass fiber netting reinforced large-caliber high-pressure-resistant polyethylene elbow device Download PDFInfo
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- CN214425380U CN214425380U CN202120038796.5U CN202120038796U CN214425380U CN 214425380 U CN214425380 U CN 214425380U CN 202120038796 U CN202120038796 U CN 202120038796U CN 214425380 U CN214425380 U CN 214425380U
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Abstract
The utility model provides a fine netting of glass increases resistant high pressure polyethylene elbow device of heavy-calibre, including fine netting of glass, coating in the solidified layer, the coating of fine netting of glass inside and outside wall live the adhesive linkage and the fixed cladding on solidified layer surface the shell of fine netting of glass outside, the material of solidified layer is the epoxy adhesive, the material of adhesive linkage is polyethylene adhesive resin, the material of shell is polyethylene, the inside evenly distributed of shell has plastics location nail, fine netting of glass, solidified layer, adhesive linkage, plastics location nail and shell integrated into one piece. The utility model discloses can do the elbow connection for newly-increased heavy-calibre, high pressure tubular product.
Description
Technical Field
The utility model relates to a polyethylene pipe fitting technical field for the water supply, concretely relates to fine netting reinforcing heavy-calibre of glass is able to bear or endure high pressure polyethylene elbow device.
Background
The latest version of Polyethylene (PE) pipeline system standard (GB/T13663.2-3-2018) for water supply is newly added with large-caliber and high-pressure pipes and pipe fittings with the specification of Dn 315-Dn8002.0Mpa.
At present, large-caliber high-pressure-grade pipe fittings such as elbows, tees and the like which are molded by a pressure injection process and an injection molding process on the market have the problems of long time consumption for multiple processing, more polyethylene materials, long production period, high unit price and the like.
There is a polyethylene elbow lined with a punched steel plate for reinforcement. But the internal sizing size standard is executed, and the internal sizing size standard is not matched with the diameter sizes of national standard polyethylene water supply pipes and other polyethylene composite pipes of external sizing series; the thermal expansion and cold contraction deformation coefficient of the steel is 10 times that of polyethylene plastics, and the potential delamination hazard exists after the steel is used for a long time; the steel plate layer of the lining is firstly bent into a cylinder, then punched, polished, galvanized and anti-corrosion treated. The treatment is complex and the cost is high.
And a glass fiber composite belt reinforced elbow. The production process is a multi-time extrusion molding mode and comprises the following steps: extruding the inner layer pipe, vacuum sizing the inner layer pipe, cooling and shaping the inner layer pipe, bending and shaping the inner layer pipe, winding the reinforcing layer, heating, cutting to a fixed length, injection molding and the like. The process is complex and the cost is high; multiple multi-layer molding is carried out, phase interfaces exist among layers, and the adhesion is poor; the plastic on the pipe wall is not uniformly dispersed and has poor stability, and the later-period use is easy to delaminate and crack; and the bearing strength is low, and the highest bearing strength is 1.25 MPa.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to solve the problem of providing a fine netting of glass increases resistant high-pressure polyethylene elbow device of bore.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a fine netting of glass increases resistant high-pressure polyethylene elbow device of strong bore, includes fine netting, coating at the cured layer, the coating of fine netting inside and outside wall of glass the adhesive linkage on cured layer surface and fixed cladding live the shell of fine netting outside of glass, fine netting, cured layer, adhesive linkage and shell integrated into one piece, the material of cured layer is the epoxy adhesive, the material of adhesive linkage is polyethylene adhesive resin, the material of shell is polyethylene, the inside evenly distributed of shell has the plastics location nail.
Preferably, the glass fiber woven mesh adopts glass fiber yarns to carry out single-layer or multi-layer mesh weaving along the core rods in the weaving machine, and the glass fiber woven meshes with different sizes can be manufactured by selecting the core rods with different diameters.
Preferably, the weaving angle between any two glass fiber yarns in the glass fiber woven mesh is in the range of 30-80 degrees.
Preferably, the housing is injection moulded.
Preferably, the plastic positioning nail and the shell are made of the same material and are integrally formed.
The utility model has the advantages and positive effects that:
(1) the glass fiber mesh grid woven by the weaving machine has the advantages of simple process, high strength and good toughness, the pressure-bearing strength of the elbow is increased by using the inner core arranged in the elbow, and the manufactured elbow can be used as a connecting piece for a newly-added high-pressure pipe.
(2) The epoxy resin adhesive coated on the inner wall and the outer wall of the glass fiber woven mesh solidifies and shapes the glass fiber woven mesh, enhances the integrity of the glass fiber woven mesh, is not easy to loosen, and further improves the pressure-bearing strength and the service life of the elbow.
(3) Through the coating at the polyethylene bonding resin on glass fiber woven mesh surface, with the inseparabler connection of glass fiber woven mesh and shell together, improve the bulk strength of elbow, be difficult for the layering to the life of elbow has been improved.
(4) The plastic pipe is formed in one step through an injection molding process, the plastic on the pipe wall is uniformly dispersed, the stability is good, the process is simple, the plastic pipe is suitable for mass production, the diameter of the elbow can be changed by changing the size of an injection mold, and the elbow connection can be made for newly-added large-caliber pipes.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a side sectional view of a glass fiber netting reinforced large-caliber high-pressure resistant polyethylene elbow device of the utility model;
fig. 2 is a cross-sectional view of a glass fiber netting reinforced large-caliber high-pressure resistant polyethylene elbow device of the utility model;
in the figure: 1. glass fiber woven mesh; 2. a housing; 3. curing the layer; 4. an adhesive layer; 5. and (4) plastic positioning nails.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1-2, the utility model provides a fine netting increase powerful resistant high pressure polyethylene elbow device of glass, including fine netting 1, the coating of glass 1 inside and outside wall of fine netting 3, the coating in the adhesive linkage 4 and the fixed cladding on curing layer surface live the shell 2 of fine netting 1 outside of glass, fine netting 1 cured layer 3 the adhesive linkage 4 with shell 2 integrated into one piece.
Further, the glass fiber woven mesh 1 adopts glass fiber yarns to weave in a single layer or multiple layers along the core rods in the weaving machine, the glass fiber woven mesh 1 with the strength meeting the requirement can be prepared, the process is simple, the batch rapid production is suitable, and the core rods with different diameters can be used for preparing the glass fiber woven mesh 1 with different sizes to serve as inner cores of elbows with different sizes.
Furthermore, the weaving angle between any two glass fiber yarns in the glass fiber woven mesh 1 is within the range of 30-80 degrees, so that the glass fiber woven mesh can be bent to a certain degree and used as an elbow inner core, and the strength of the glass fiber woven mesh 1 is ensured to meet the requirement.
Further, the shell 2 is made of polyethylene and is formed by injection molding through a mold, so that the plastic dispersion of the pipe wall is uniform, the stability is good, the delamination and cracking caused by later use are avoided, and the service life of the manufactured elbow is prolonged.
Further, plastics location nail 5 is arranged in the position of fixed glass fiber mesh grid 1 in the mould before moulding plastics, prevents that the skew from taking place in the position of the glass fiber mesh grid of the in-process of moulding plastics, and the plastics location nail 5 of fixed glass fiber mesh grid 1 can have a plurality ofly, because the plastics location nail is the same kind of material with the shell 2 use that forms of moulding plastics, so mould plastics back shell 2 and 5 integrated into one piece of plastics location nail, guarantee pipe wall plastics homodisperse.
Further, the material of cured layer is the epoxy adhesive, and the coating can be stereotyped with the fine woven mesh 1 solidification of the glass who weaves that forms in fine woven mesh 1 inside and outside wall of glass, has increased the stability of fine woven mesh, can not scatter easily.
Further, the material of adhesive linkage is polyethylene bonding resin, can be better link together glass fiber mesh grid 1 and shell 2, has increased the wholeness of the elbow of making, is difficult for the layering.
Furthermore, the elbow can be used for systems such as polyethylene solid-wall pipes, polyethylene composite pipes and the like in a hot-melt butt welding and electric-melt welding mode after being formed; the end of the elbow can be wound with polyethylene, and then turned to form a flange root, and the flange root is connected with pipelines made of other materials in a flange connection mode, such as steel pipes, glass steel pipes, ball-milling cast iron pipes and the like, and the flange joint has the advantages of strong plasticity, various connection modes and wide application range.
The utility model discloses a theory of operation and working process as follows: the working personnel firstly take out the glass fiber yarns and put into a glass fiber yarn weaving machine, the glass fiber woven meshes 1 with different sizes are woven around a core rod in the weaving machine, the core rods with different diameters are selected according to different calibers of required elbows, the glass fiber yarns are crossed and woven into a cylinder shape according to a certain angle in the warp and weft directions by the weaving machine in a three-dimensional winding mode, the weaving angle can be any angle between 30 degrees and 80 degrees, the weaving mode of the glass fiber woven meshes 1 can be single-layer or multi-layer woven meshes, and the glass fiber woven meshes 1 meeting the strength requirement are manufactured. Coating an epoxy resin adhesive on the surfaces of the inner wall and the outer wall of the woven glass fiber woven mesh 1 to form a cured layer 3, curing and shaping the woven glass fiber mesh 1, cutting off glass fiber joints after the woven glass fiber mesh 1 is shaped, and uniformly coating a layer of polyethylene adhesive resin on the surface of the cured layer 3 to form an adhesive layer 4, so that the woven glass fiber mesh 1 is fixedly connected with the polyethylene shell 2. The glass fiber reinforced mesh 1 which is just coated with the cured layer 3 and the bonding layer 4 is placed on a core in a mould cavity of an elbow mould, the glass fiber reinforced mesh 1 is fixed at a proper position by a plastic positioning nail 5, then the shell 2 is manufactured in an injection molding mode, and the glass fiber woven mesh 1, the cured layer 3, the bonding layer 4, the shell 2 and the plastic positioning nail are integrally formed. The injection-molded elbow can be used for systems such as polyethylene solid-wall pipes, polyethylene composite pipes and the like in a hot-melt butt welding and electric-melt welding mode; polyethylene can also be wound on the end part of the elbow, and then a flange root is turned and connected with pipelines made of other materials, such as steel pipes, glass fiber reinforced plastic pipes, ball-milling cast iron pipes and the like, in a flange connection mode.
The utility model is characterized in that: the glass fiber woven mesh 1 adopts glass fiber yarns to weave single-layer or multi-layer meshes in the weaving machine along the core rods, the glass fiber woven mesh 1 with the strength meeting the requirement can be prepared, the process is simple, the batch rapid production is suitable, and the glass fiber woven mesh 1 with different sizes can be prepared by selecting the core rods with different diameters to be used as inner cores of elbows with different sizes; the weaving angle between any two glass fiber yarns in the glass fiber woven mesh 1 is within the range of 30-80 degrees, so that the glass fiber woven mesh can be bent to a certain degree and used as an elbow inner core, and the strength of the glass fiber woven mesh 1 is ensured to meet the requirement; the shell 2 is made of polyethylene and is formed by injection molding through a mold, so that the plastic of the pipe wall is uniformly dispersed, the stability is good, the delamination and cracking in later use are avoided, and the service life of the manufactured elbow is prolonged; the plastic positioning nails 5 are used for fixing the positions of the glass fiber woven mesh 1 in the mold before injection molding, so that the position of the glass fiber woven mesh is prevented from being deviated in the injection molding process, a plurality of plastic positioning nails 5 are used for fixing the glass fiber woven mesh 1, and the plastic positioning nails 5 and the injection molded shell 2 are made of the same material, so that the injection molded shell 2 and the plastic positioning nails 5 are integrally molded, and the plastic on the pipe wall is ensured to be uniformly dispersed; the curing layer is made of an epoxy resin adhesive, and is coated on the inner wall and the outer wall of the glass fiber woven mesh 1 to cure and shape the woven glass fiber woven mesh 1, so that the stability of the glass fiber woven mesh is improved, and the glass fiber woven mesh cannot be easily scattered; the material of the bonding layer is polyethylene bonding resin, so that the glass fiber woven mesh 1 and the shell 2 can be better connected together, the integrity of the manufactured elbow is improved, and the manufactured elbow is not easy to layer; the injection-molded elbow can be used for polyethylene solid-wall pipes, polyethylene composite pipes and other systems in a hot-melt butt welding and electric-melt welding mode, polyethylene can be wound on the end part of the elbow, then the flange root is turned, and the elbow can be connected with other material pipelines in a flange connection mode, such as steel pipes, glass steel pipes, ball-milling cast iron pipes and the like, and the injection-molded elbow has various connection modes and wide application range.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (6)
1. The utility model provides a fine netting of glass increases resistant high pressure polyethylene elbow device of heavy-calibre which characterized in that: including glass fiber mesh grid (1), coating in cured layer (3) of glass fiber mesh grid (1) inside and outside wall, coating in adhesive linkage (4) and the fixed cladding on cured layer surface live shell (2) of glass fiber mesh grid (1) outside, glass fiber mesh grid (1) cured layer (3) adhesive linkage (4) with shell (2) integrated into one piece.
2. The glass fiber netting reinforced large-caliber high-pressure resistant polyethylene elbow device according to claim 1, wherein: the glass fiber woven mesh (1) is prepared by weaving glass fiber yarns in a single-layer or multi-layer mode.
3. The glass fiber netting reinforced large-caliber high-pressure resistant polyethylene elbow device according to claim 2, wherein: the shell (2) is made of polyethylene.
4. The glass fiber netting reinforced large-caliber high-pressure resistant polyethylene elbow device according to claim 1, wherein: the material of the curing layer (3) is epoxy resin adhesive.
5. The glass fiber netting reinforced large-caliber high-pressure resistant polyethylene elbow device according to claim 1, wherein: the material of the bonding layer (4) is polyethylene bonding resin.
6. The glass fiber netting reinforced large-caliber high-pressure resistant polyethylene elbow device according to claim 1, wherein: and plastic positioning nails (5) are uniformly distributed in the shell (2).
Priority Applications (1)
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CN202120038796.5U CN214425380U (en) | 2021-01-07 | 2021-01-07 | Glass fiber netting reinforced large-caliber high-pressure-resistant polyethylene elbow device |
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CN202120038796.5U CN214425380U (en) | 2021-01-07 | 2021-01-07 | Glass fiber netting reinforced large-caliber high-pressure-resistant polyethylene elbow device |
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CN214425380U true CN214425380U (en) | 2021-10-19 |
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CN202120038796.5U Active CN214425380U (en) | 2021-01-07 | 2021-01-07 | Glass fiber netting reinforced large-caliber high-pressure-resistant polyethylene elbow device |
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Address after: No.58, Caiyun East Street, Hangu modern industrial zone, Binhai New Area Development Zone, Tianjin Patentee after: Ad pipeline (Tianjin) Co.,Ltd. Address before: No.58, Caiyun East Street, Hangu modern industrial zone, Binhai New Area Development Zone, Tianjin Patentee before: TIANJIN YONGGAO PLASTIC INDUSTRY DEVELOPMENT CO.,LTD. |
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