CN214889425U - Cold water lining plastic composite pipe convenient for pipeline connection - Google Patents

Abstract

The utility model discloses a compound pipe is moulded to cold water lining convenient to pipeline links up relates to tubular product technical field. The utility model discloses a pipeline body, outer coupling assembling, in-connection subassembly and fixed subassembly, the pipeline body includes that carbon steel pipe, lining are moulded and the protection film, and carbon steel pipe, lining are moulded and the protection film sets gradually from outside to inside, the protection film includes outer basic unit, corrosion resistant sheet layer, intermediate level, heat preservation sheet layer and interior basic unit, and outer basic unit, corrosion resistant sheet layer, intermediate level, heat preservation sheet layer and interior basic unit set gradually from inside to outside. The utility model discloses an in-connection subassembly, outer coupling assembling and fixed subassembly and protection film have solved the current pipeline and have been not convenient for the installation and the temperature in the pipeline influences the life problem of its pipeline, have made things convenient for the staff to install and dismantle the pipeline to the life of pipeline has been increased, pipeline cost of maintenance has been reduced.

Description

Cold water lining plastic composite pipe convenient for pipeline connection

Technical Field

The utility model belongs to the technical field of tubular product, especially, relate to a compound pipe is moulded to cold water lining convenient to pipeline links up.

Background

The composite pipe is formed by using a pipe with a metal and thermoplastic plastic composite structure as a base and internally lining non-metallic materials such as polypropylene, polyethylene or externally welding crosslinked polyethylene and the like, has the advantages of the metal pipe and the non-metallic pipe, but still has the following defects in actual use:

1. when the existing cold water plastic-lined composite pipe is used, in the process of installing pipelines, workers cannot conveniently connect the two pipelines, so that the working time of the workers is increased, the workload is increased, and the working efficiency is reduced;

2. the existing cold water plastic-lined composite pipe is in the using process, because cold water circulates in the pipeline, the water temperature is low, so that the thermoplastic material works in a low-temperature environment for a long time, when the using time of the pipeline is too long, the thermoplastic material is possibly deformed, the pipeline is damaged, and the maintenance cost is increased.

Therefore, the existing cold water plastic-lined composite pipe convenient for pipeline connection cannot meet the requirements in practical use, so that an improved technology is urgently needed in the market to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound pipe is moulded to cold water lining convenient to pipeline links up, through.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a cold water lining plastic composite pipe convenient for pipeline connection, which comprises a pipeline body, an outer connecting component, an inner connecting component and a fixing component, wherein the pipeline body comprises a carbon steel pipe, a lining plastic and a protective film, the carbon steel pipe, the lining plastic and the protective film are sequentially arranged from outside to inside, the protective film comprises an outer base layer, a corrosion-resistant sheet layer, an intermediate layer, a heat-insulating sheet layer and an inner base layer, the outer base layer, the corrosion-resistant sheet layer, the intermediate layer, the heat-insulating sheet layer and the inner base layer are sequentially arranged from inside to outside, the outer connecting component comprises a first mounting block, a first outer pipe, a first inner pipe and a first threaded hole, the bottom of the first mounting block is welded at the top end of the carbon steel pipe, the top of the first mounting block is welded with the first outer pipe, the outer walls at two sides of the first outer pipe are respectively provided with the first threaded hole, the first inner pipe is arranged in the first outer pipe, the bottom end of the first inner pipe is welded to the top of the first mounting block, the inner connecting assembly comprises a second mounting block, a second outer pipe, a second inner pipe and a second threaded hole, the top of the second mounting block is welded to the bottom of the carbon steel pipe, the second outer pipe is welded to the bottom of the second mounting block, the second threaded holes are formed in the outer walls of the two sides of the second outer pipe, the second inner pipe is arranged in the second outer pipe, the bottom end of the second inner pipe is welded to the top of the second mounting block, the fixing assembly comprises a butterfly nut and a threaded rod, and the threaded rod is welded to the outer wall of one side of the butterfly nut.

Further, interior basic unit bonds on the inner wall that the lining was moulded through waterproof viscose, and outer basic unit, corrosion resistant sheet layer, intermediate level, heat preservation sheet layer and interior basic unit all set up through the pressfitting between two liang of neighbours, and the protection film passes through waterproof viscose to bond on the lining moulds the inner wall, can avoid permeating the protection film and the lining between moulding because of sealed not good cold water that leads to of effect, and then leads to its protection film to drop.

Further, the diameter of first outer tube and first inner tube is greater than the diameter of second outer tube and second inner tube respectively, and the second outer tube is located between first outer tube and the first inner tube, the second inner tube is located the inboard of first inner tube, and the leakproofness that the junction can be strengthened to the inboard that the second inner tube is located first inner tube avoids appearing the emergence of the circumstances such as junction infiltration.

Further, the thickness of the second outer pipe is equal to the distance between the first outer pipe and the first inner pipe, the thickness of the first inner pipe is equal to the distance between the second outer pipe and the second inner pipe, and the thickness and the distance are equal, so that when the outer pipe and the inner pipe are connected, the gap at the joint is small, and the sealing performance of the joint is further enhanced.

Furthermore, the first mounting block and the second mounting block are both circular, the diameters of the first mounting block and the second mounting block are equal, the shapes and the sizes of the first mounting block and the second mounting block are consistent, and the attractiveness of the connecting structure is higher during connection.

Further, external screw thread on the threaded rod outer wall closes soon with the internal thread on first screw hole and the second screw hole inner wall and is connected, and the length of threaded rod equals with the length sum of first screw hole and second screw hole, and outer coupling assembling passes through threaded connection with the interior coupling assembling, has made things convenient for the staff to install and dismantle.

The utility model discloses following beneficial effect has:

1. the utility model discloses an outer coupling assembling, in-connection subassembly and fixed subassembly's cooperation setting, in the installation, carry out clearance connection with the outer coupling assembling of a pipeline and the in-connection subassembly of another pipeline to come to fix it through the threaded rod in its fixed subassembly, made things convenient for the staff to install and dismantle it, reduced staff's work load, reduced operating time, improved work efficiency.

2. The utility model discloses the setting of protection film, in the use, the protection film on the inner wall is moulded to its lining, can effectually separate cold volume in the cold water and permeate to the lining and mould and go to lead to the lining to mould the emergence of taking place the circumstances such as deformation, reduced the cost of maintenance to the pipeline.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the present invention;

FIG. 2 is a front sectional view of the present invention;

FIG. 3 is a schematic view of the pipe connection of the present invention;

fig. 4 is a front view of the fixing assembly of the present invention;

fig. 5 is a top view of the first mounting block of the present invention;

fig. 6 is a bottom view of the second mounting block of the present invention;

fig. 7 is a schematic view showing a partial enlargement of the protective film of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a pipe body; 101. a carbon steel pipe; 102. lining with plastic; 103. a protective film; 10301. an outer base layer; 10302. a corrosion resistant sheet layer; 10303. an intermediate layer; 10304. a heat-insulating sheet layer; 10305. an inner base layer; 2. an outer connection assembly; 201. a first mounting block; 202. a first outer tube; 203. A first inner tube; 204. a first threaded hole; 3. an inner connection member; 301. a second mounting block; 302. a second outer tube; 303. a second inner tube; 304. a second threaded hole; 4. a fixing assembly; 401. a butterfly nut; 402. a threaded rod.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention relates to a cold water plastic-lined composite pipe convenient for pipeline connection, which comprises a pipe body 1, an outer connecting component 2, an inner connecting component 3 and a fixing component 4, wherein the pipe body 1 comprises a carbon steel pipe 101, a lining plastic 102 and a protective film 103, the carbon steel pipe 101, the lining plastic 102 and the protective film 103 are sequentially arranged from outside to inside, the protective film 103 comprises an outer base layer 10301, a corrosion-resistant sheet layer 10302, an intermediate layer 10303, a heat-insulating sheet layer 10304 and an inner base layer 10305, the outer base layer 10301, the corrosion-resistant sheet layer 10302, the intermediate layer 10303, the heat-insulating sheet layer 10304 and the inner base layer 10305 are sequentially arranged from inside to outside, the outer connecting component 2 comprises a first mounting block 201, a first outer pipe 202, a first inner pipe 203 and a first threaded hole 204, the bottom of the first mounting block 201 is welded on the top of the carbon steel pipe 101, the first mounting block 202 is welded on the top, the outer walls of two sides of the first outer pipe 202 are respectively provided with a first threaded hole 204, the first outer pipe 202 is internally provided with a first inner pipe 203, the bottom end of the first inner pipe 203 is welded on the top of the first mounting block 201, the inner connecting component 3 comprises a second mounting block 301, a second outer pipe 302, a second inner pipe 303 and a second threaded hole 304, the top end of the second mounting block 301 is welded on the bottom end of the carbon steel pipe 101, the bottom of the second mounting block 301 is welded with the second outer pipe 302, the outer walls of two sides of the second outer pipe 302 are respectively provided with a second threaded hole 304, the second outer pipe 302 is internally provided with the second inner pipe 303, the bottom end of the second inner pipe 303 is welded on the top of the second mounting block 301, the fixing component 4 comprises a butterfly nut 401 and a threaded rod 402, the outer wall of one side of the butterfly nut 401 is welded with the threaded rod 402, in the mounting process, a worker can firstly connect the outer connecting component 2 of one composite pipe with the inner connecting component 3 of another composite pipe, the first inner pipe 203 in the outer connecting assembly 2 is positioned between the second outer pipe 302 and the second inner pipe 303, and the second outer pipe 302 in the inner connecting assembly 3 is positioned between the first outer pipe 202 and the first inner pipe 203, and the two composite pipes are connected through the threaded connection between the threaded rod 402 in the fixing assembly 4 and the first threaded hole 204 and the second threaded hole 304, so that the composite pipes are convenient for workers to install and detach, in the using process, the corrosion-resistant sheet layer 10302 in the protective film 103 is preferably block copolymer propylene, the heat-insulating sheet layer 10304 is preferably polyurethane, the corrosion-resistant sheet layer 10302 can effectively prevent the protective film 103 from being corroded to lose the effect, the middle layer 10303 arranged between the corrosion-resistant sheet layer 10302 and the heat-insulating sheet layer 10304 can enhance the protection of the heat-insulating sheet layer 10304, and the heat-insulating sheet layer 10304 can insulate cold in cold water from permeating into the lining plastic 102, thereby leading to the failure or deformation of the thermoplastic material, further prolonging the service life of the pipeline and reducing the maintenance cost of the pipeline.

Wherein as shown in fig. 2 and fig. 7, interior base layer 10305 bonds on the inner wall of lining plastic 102 through waterproof viscose, and outer base layer 10301, corrosion resistant sheet layer 10302, intermediate level 10303, heat preservation sheet layer 10304 and interior base layer 10305 all set up through the pressfitting between two liang of neighbours, bond through waterproof viscose between protection film 103 and the lining plastic 102, not only made things convenient for the pipeline to produce, but also can prevent the emergence that leads to the circumstances such as protection film 103 to drop because of water infiltration, adopt the pressfitting to form between its protection film 103 each layer can the at utmost reduce the clearance between each layer, water infiltration protection film 103 has been avoided.

As shown in fig. 2-4, the external thread on the outer wall of the threaded rod 402 is screwed with the internal thread on the inner walls of the first threaded hole 204 and the second threaded hole 304, the length of the threaded rod 402 is equal to the sum of the lengths of the first threaded hole 204 and the second threaded hole 304, and the external connection component 2 and the internal connection component 3 are in threaded connection through the threaded rod 402 in the fixed component 4, so that the installation and the disassembly of the external connection component by a worker are facilitated, and the workload of the worker is reduced.

As shown in fig. 5 to 6, the first mounting block 201 and the second mounting block 301 are both circular, the diameters of the first mounting block 201 and the second mounting block 301 are equal, the first mounting block 201 and the second mounting block 301 have the same shape and size, and are mirror-symmetrical when connected, so that the appearance is more attractive.

As shown in fig. 2, 3, 5 and 6, the diameters of the first outer tube 202 and the first inner tube 203 are respectively greater than the diameters of the second outer tube 302 and the second inner tube 303, the second outer tube 302 is located between the first outer tube 202 and the first inner tube 203, the second inner tube 303 is located inside the first inner tube 203, the first outer tube 202, the first inner tube 203, the second outer tube 302 and the second inner tube 303 are concentric when connected, and the staggered distribution thereof can effectively enhance the sealing performance of the connection thereof and avoid water seepage from the connection, the thickness of the second outer tube 302 is equal to the distance between the first outer tube 202 and the first inner tube 203, the thickness of the first inner tube 203 is equal to the distance between the second outer tube 302 and the second inner tube 303, the thickness of the second outer tube 302 and the first inner tube 203 reduces the size of the gap at the connection thereof, further enhances the sealing performance at the connection thereof, so that the connection of the pipeline is not only convenient but also has stronger sealing performance.

One specific application of this embodiment is: when the pipeline connecting device is installed, a worker firstly connects the external connecting component 2 of one pipeline with the internal connecting component 3 of the other pipeline, aligns the first inner pipe 203 in the external connecting component 2 with the gap between the second outer pipe 302 and the second inner pipe 303 in the internal connecting component 3, and enables the first inner pipe and the second inner pipe to be connected seamlessly, so that the circle centers of the first threaded hole 204 on the first outer pipe 202 and the second threaded hole 304 on the second outer pipe 302 are positioned on the same horizontal line, aligns the threaded rod 402 in the fixing component 4 with the first threaded hole 204, rotates the butterfly nut 401 to drive the threaded rod 402 to rotate, and the external threads on the outer wall of the threaded rod 402 are connected with the internal threads on the hole walls of the first threaded hole 204 and the second threaded hole 304 in a screwing manner, so that the external connecting component 2 can be tightly connected with the internal connecting component 3, thereby realizing the connection of two composite pipes, in the using process, the corrosion-resistant sheet layer 10302 in the protective film 103 can effectively avoid corrosion of the protective film 103 caused by corrosive positions in water flow, and the cold energy in cold water is prevented from permeating into the lining plastic 102 through the protective film 103 under the action of the heat-insulating sheet layer 10304.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides a compound pipe is moulded to cold water lining convenient to pipeline links up, includes pipeline body (1), external connection subassembly (2), internal connection subassembly (3) and fixed subassembly (4), its characterized in that: the pipeline body (1) comprises a carbon steel pipe (101), a lining plastic (102) and a protective film (103), the carbon steel pipe (101), the lining plastic (102) and the protective film (103) are sequentially arranged from outside to inside, the protective film (103) comprises an outer base layer (10301), a corrosion-resistant sheet layer (10302), an intermediate layer (10303), a heat-insulating sheet layer (10304) and an inner base layer (10305), the outer base layer (10301), the corrosion-resistant sheet layer (10302), the intermediate layer (10303), the heat-insulating sheet layer (10304) and the inner base layer (10305) are sequentially arranged from inside to outside, the outer connecting component (2) comprises a first mounting block (201), a first outer pipe (202), a first inner pipe (203) and a first threaded hole (204), the bottom of the first mounting block (201) is welded at the top end of the carbon steel pipe (101), the first mounting block (201) is welded at the top end, and the outer pipe (202) is provided with first threaded holes (204) on the outer walls of the two sides, a first inner pipe (203) is arranged in the first outer pipe (202), the bottom end of the first inner pipe (203) is welded on the top of the first mounting block (201), the inner connecting component (3) comprises a second mounting block (301), a second outer pipe (302), a second inner pipe (303) and a second threaded hole (304), the top of the second mounting block (301) is welded at the bottom end of the carbon steel pipe (101), a second outer pipe (302) is welded at the bottom of the second mounting block (301), and the outer walls of the two sides of the second outer pipe (302) are both provided with second threaded holes (304), a second inner pipe (303) is arranged in the second outer pipe (302), and the bottom end of the second inner pipe (303) is welded on the top of the second mounting block (301), the fixing component (4) comprises a butterfly nut (401) and a threaded rod (402), and a threaded rod (402) is welded on the outer wall of one side of the butterfly nut (401).

2. The cold water plastic-lined composite pipe convenient for pipeline connection as claimed in claim 1, wherein the inner base layer (10305) is bonded on the inner wall of the plastic lining (102) through waterproof adhesive, and the outer base layer (10301), the corrosion-resistant sheet layer (10302), the intermediate layer (10303), the heat-insulating sheet layer (10304) and the inner base layer (10305) are arranged in a pressing manner between every two adjacent layers.

3. The cold water lining plastic composite pipe convenient for pipe joint according to claim 1, wherein the diameter of the first outer pipe (202) and the diameter of the first inner pipe (203) are respectively larger than the diameter of the second outer pipe (302) and the diameter of the second inner pipe (303), the second outer pipe (302) is positioned between the first outer pipe (202) and the first inner pipe (203), and the second inner pipe (303) is positioned at the inner side of the first inner pipe (203).

4. The cold water lining plastic composite pipe for facilitating pipe joining according to claim 1, wherein the thickness of the second outer pipe (302) is equal to the distance between the first outer pipe (202) and the first inner pipe (203), and the thickness of the first inner pipe (203) is equal to the distance between the second outer pipe (302) and the second inner pipe (303).

5. The cold water plastic-lined composite pipe convenient for pipeline splicing as claimed in claim 1, wherein the first mounting block (201) and the second mounting block (301) are both circular, and the diameters of the first mounting block (201) and the second mounting block (301) are equal.

6. The cold water plastic-lined composite pipe convenient for pipe connection as claimed in claim 1, wherein the external thread on the outer wall of the threaded rod (402) is screwed with the internal thread on the inner wall of the first threaded hole (204) and the second threaded hole (304), and the length of the threaded rod (402) is equal to the sum of the lengths of the first threaded hole (204) and the second threaded hole (304).

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