Composite high-barrier anti-oxygen waterproof conduit

By introducing a U-shaped metal ring, a buffer assembly, and an inner layer assembly into the conduit, the problem of reduced barrier performance caused by moisture absorption of the EVOH layer is solved, enabling the cable to maintain oxygen and water resistance under external impact, extending its service life and reducing maintenance costs.

CN223462683UActive Publication Date: 2025-10-21江苏苏美达新材料科技发展有限公司
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Patent Information

Application Number
CN202422860769.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-10-21
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

When existing conduits rupture, the hydrophilicity and hygroscopicity of the EVOH layer reduce their barrier properties, making them unable to effectively prevent oxygen and moisture penetration and affecting the cable's protective effect.

Method used

It adopts a composite structure, including a spiral metal ring, a buffer assembly, an oxygen protection assembly, and an inner layer assembly. The buffer assembly disperses external pressure to prevent rupture, while the inner layer assembly ensures that the EVOH layer is not affected by moisture. Combined with the metal ring support and rubber ring cushioning, it improves the overall protection.

Benefits of technology

It effectively prevents the conduit from cracking under external impact, maintains the oxygen-proof and waterproof properties of the EVOH layer, extends cable life, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of threading pipes, in particular to a composite high-barrier anti-oxygen waterproof threading pipe which comprises a zigzag metal ring and a first polyethylene layer, the inner side of the zigzag metal ring is fixedly connected with the first polyethylene layer, the inner side of the first polyethylene layer is fixedly connected with a buffer assembly, and the inner side of the buffer assembly is fixedly connected with an anti-oxygen assembly. The inner layer assembly is fixedly connected to the inner side of the anti-oxygen assembly, the buffer assembly comprises a rubber ring, a buffer ring groove is formed in the inner side of the rubber ring, a rubber column is fixedly connected to the inner side of the buffer ring groove formed in the rubber ring, a ventilation opening is formed in the inner side of the rubber ring, the anti-oxygen assembly comprises a vinyl alcohol copolymer, and a limiting channel is formed in the inner side of the vinyl alcohol copolymer. According to the utility model, the protection performance of the threading pipe is effectively improved, the fracture phenomenon caused by external impact is reduced, and it is ensured that the waterproof and anti-oxygen performance of the threading pipe is not affected.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a threading pipe technical field, concretely is a composite high barrier oxygen -proof waterproof threading pipe. BACKGROUND

[0002] The composite high barrier oxygen -proof waterproof threading pipe is a pipe material for protecting cables, which has multiple protection functions and can prevent oxygen, moisture and other environmental factors from damaging the cables, and can adapt to various harsh environments such as humidity, high temperature, dust, vibration and fire hazard places.

[0003] EVOH is a high barrier material, which is known for its excellent gas barrier performance and is considered one of the world's three recognized high barrier materials.

[0004] In the current threading pipe design, in order to effectively prevent the penetration of oxygen and carbon dioxide and other gases, a layer of ethylene-vinyl alcohol copolymer is added as a high barrier layer. Although this material provides excellent isolation effect, if the threading pipe is broken, the EVOH layer will absorb water due to its inherent hydrophilicity and hygroscopicity, resulting in a decrease in its barrier performance. Therefore, although the EVOH layer can provide excellent protection when it is intact, its protection ability will be weakened due to moisture absorption after the threading pipe is damaged. Therefore, a composite high barrier oxygen -proof waterproof threading pipe is proposed to solve the above problems. SUMMARY

[0005] The utility model aims at providing a composite high barrier oxygen -proof waterproof threading pipe to solve the problem that if the threading pipe is broken, the EVOH layer will absorb water due to its inherent hydrophilicity and hygroscopicity, resulting in a decrease in its barrier performance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a kind of composite high-barrier oxygen-proof waterproof threading pipe, including backshaped metal ring and first polyethylene layer, first polyethylene layer is fixedly connected with the inside of the backshaped metal ring, buffer assembly is fixedly connected with the inside of first polyethylene layer, oxygen-proof assembly is fixedly connected with the inside of buffer assembly, inner layer component is fixedly connected with the inside of oxygen-proof assembly, buffer assembly includes rubber ring, buffer ring groove is arranged in the inside of rubber ring, rubber column is fixedly connected in the buffer ring groove that rubber ring sets up, air vent is arranged in the inside of rubber ring, oxygen-proof assembly includes ethylene-vinyl alcohol copolymer, limiting channel is arranged in the inside of ethylene-vinyl alcohol copolymer, ethylene-vinyl alcohol copolymer is arranged in the inside close to limiting channel and is provided with glue inlet, inner layer component includes second polyethylene layer, convex plate is fixedly connected with the outside of second polyethylene layer, glue pouring channel is arranged in the inside of convex plate, glue outlet is arranged in the inside of convex plate.

[0008] As the further optimization of the utility model, the backshaped metal ring is in the shape of a circular ring, and is equidistantly distributed on the outside of the first polyethylene layer. The first polyethylene layer is hollow on the inside, and a spacing is provided between the first polyethylene layer and the ethylene-vinyl alcohol copolymer.

[0009] As the further optimization of the utility model, the first polyethylene layer is fixedly connected on the inside with the rubber ring on the outside, the rubber ring is in the shape of a rhombic ring, the buffer ring groove is in the shape of a ring, and the rubber ring is fixedly connected on the inside with the ethylene-vinyl alcohol copolymer on the outside.

[0010] As the further optimization of the utility model, the front end and the rear end of the rubber column are fixed at the front end and the rear end of the rubber ring, the rubber column is embedded and installed on the inside of the buffer ring groove, and the rubber column is equidistantly distributed on the inside of the buffer ring groove in the shape of a polar axis.

[0011] As the further optimization of the utility model, the inside of the ethylene-vinyl alcohol copolymer is hollow, the inside of the ethylene-vinyl alcohol copolymer is in close contact with the outside of the second polyethylene layer, and the limiting channel is in the shape of a rectangular body and a trapezoidal body.

[0012] As the further optimization of the utility model, one end of the limiting channel penetrates the inside of the ethylene-vinyl alcohol copolymer, the limiting channel is in communication with the inside of the ethylene-vinyl alcohol copolymer, the convex plate slides on the inside of the limiting channel, the glue inlet is aligned with the glue outlet, and the number of the glue inlet is the same as that of the glue outlet.

[0013] As the further optimization of the utility model, the convex plate is in the shape of a rectangular body and a trapezoidal body, the glue pouring channel penetrates the front end and the rear end of the convex plate, the two ends of the glue outlet penetrate the inside of the convex plate, and the glue outlet is in communication with the glue pouring channel.

[0014] Compared with the prior art, the utility model has the advantages of

[0015] In the utility model, through the embedded metal layer back-shaped metal ring in the threading pipe, the device effectively improves the protection of the threading pipe, reduces the rupture phenomenon caused by external impact, thereby protecting the ethylene-vinyl alcohol copolymer from being damaged, the design not only ensures the stability and safety of the threading pipe when suffering external impact, but also maintains the oxygen barrier performance of the EVOH layer, ensures the waterproof and oxygen barrier performance of the threading pipe, prolongs the service life of the cable, and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic view of the utility model;

[0017] Figure 2 It is the first polyethylene layer structure schematic view of the utility model;

[0018] Figure 3 It is the buffer assembly structure schematic view of the utility model;

[0019] Figure 4 It is the rubber ring structure schematic view of the utility model;

[0020] Figure 5 It is the ethylene-vinyl alcohol copolymer structure schematic view of the utility model;

[0021] Figure 6 It is the A place structure schematic view of the utility model Figure 5 .

[0022] In the drawing: 1, back-shaped metal ring; 2, first polyethylene layer;

[0023] 3, buffer assembly; 31, rubber ring; 32, buffer ring groove; 33, rubber column; 34, air vent;

[0024] 4, oxygen-proof assembly; 41, ethylene-vinyl alcohol copolymer; 42, limiting channel; 43, glue inlet;

[0025] 5, inner layer assembly; 51, second polyethylene layer; 52, lug; 53, glue filling channel; 54, glue outlet. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components, and / or combinations thereof.

[0028] Referring to Figures 1-6 The utility model provides a technical scheme:

[0029] A composite high-barrier oxygen-proof and waterproof threading pipe, comprising a back-shaped metal ring 1 and a first polyethylene layer 2, the first polyethylene layer 2 is fixedly connected to the inner side of the back-shaped metal ring 1, a buffer assembly 3 is fixedly connected to the inner side of the first polyethylene layer 2, an oxygen-proof assembly 4 is fixedly connected to the inner side of the buffer assembly 3, an inner layer assembly 5 is fixedly connected to the inner side of the oxygen-proof assembly 4, the buffer assembly 3 comprises a rubber ring 31, a buffer ring groove 32 is formed in the inner side of the rubber ring 31, a rubber column 33 is fixedly connected to the inner side of the buffer ring groove 32 formed in the rubber ring 31, a vent 34 is formed in the inner side of the rubber ring 31, the oxygen-proof assembly 4 comprises an ethylene-vinyl alcohol copolymer 41, a limiting channel 42 is formed in the inner side of the ethylene-vinyl alcohol copolymer 41, a glue inlet 43 is formed in the inner side of the ethylene-vinyl alcohol copolymer 41 close to the limiting channel 42, and the inner layer assembly 5 comprises a second polyethylene layer 51, a lug plate 52 is fixedly connected to the outer side of the second polyethylene layer 51, a glue pouring channel 53 is formed in the inner side of the lug plate 52, and a glue outlet 54 is formed in the inner side of the lug plate 52.

[0030] As a further implementation of the scheme, the back-shaped metal ring 1 is in the shape of a circular ring, the back-shaped metal ring 1 is equidistantly distributed on the outer side of the first polyethylene layer 2, the inner side of the first polyethylene layer 2 is hollow, a spacing is arranged between the first polyethylene layer 2 and the ethylene-vinyl alcohol copolymer 41, the back-shaped metal ring 1 plays a protective role on the first polyethylene layer 2 and can prevent external impact from causing the first polyethylene layer 2 to be broken, and the back-shaped metal ring 1 can also support the internal device, and the spacing between the back-shaped metal rings 1 allows the threading pipe to be bent;

[0031] As a further implementation of the scheme, the inner side of the first polyethylene layer 2 is fixedly connected with the outer side of the rubber ring 31, the rubber ring 31 is a rhombic ring shape, the buffer ring groove 32 is designed in a ring shape, the inner side of the rubber ring 31 is fixedly connected with the outer side of the ethylene-vinyl alcohol copolymer 41, the front end and the rear end of the rubber column 33 are fixed at the front end and the rear end of the rubber ring 31, the rubber column 33 is embedded and installed at the inner side of the buffer ring groove 32, the rubber column 33 is distributed in the form of equidistant polar axes at the inner side of the buffer ring groove 32, which ensures the tightness and integrity of the overall structure, the ring-shaped buffer ring groove 32 is designed to facilitate uniform dispersion of external pressure, protect the internal cable from damage, and the distribution of equidistant polar axes helps to uniformly disperse the pressure and reduce local stress concentration, improve the durability and protection performance of the conduit;

[0032] As a further implementation of the scheme, the inner side of the ethylene-vinyl alcohol copolymer 41 is hollow, the inner side of the ethylene-vinyl alcohol copolymer 41 is in close contact with the outer side of the second polyethylene layer 51, the limiting channel 42 is designed in the form of a rectangular body and a trapezoidal body, one end of the limiting channel 42 penetrates the inner side of the ethylene-vinyl alcohol copolymer 41, the limiting channel 42 is in communication with the inner side of the ethylene-vinyl alcohol copolymer 41, the tab 52 slides on the inner side of the limiting channel 42, the glue inlet 43 is aligned with the glue outlet hole 54, the number of glue inlets 43 is the same as the number of glue outlet holes 54, which is conducive to improving the strength and stability of the structure, while providing effective space utilization, which can effectively prevent the second polyethylene layer 51 from twisting in the inner side of the ethylene-vinyl alcohol copolymer 41, improve the stability of the connection between the second polyethylene layer 51 and the ethylene-vinyl alcohol copolymer 41, and the second polyethylene layer 51 provides protection for the ethylene-vinyl alcohol copolymer 41, the shape of the tab 52 is composed of a rectangular body and a trapezoidal body, the glue pouring channel 53 penetrates the front end and the rear end of the tab 52, and the two ends of the glue outlet hole 54 penetrate the inner side of the tab 52, the glue outlet hole 54 is in communication with the glue pouring channel 53.

[0033] Work flow: while realizing the anti-oxygen and waterproof of the wire penetrating pipe, reducing the damage of external impact to the wire penetrating pipe, and affecting the anti-oxygen and waterproof barrier, the first polyethylene layer 2 and the inner layer assembly 5 play a waterproof role, the second polyethylene layer 51 is embedded and installed on the inner side of the vinyl alcohol copolymer 41, and the convex plate 52 is embedded and installed in the inside of the limiting channel 42, the glue is poured into the glue pouring channel 53, and the water flows out through the glue pouring hole 54, so as to enter the inside of the limiting channel 42 and the glue inlet 43, realize the fixation of the vinyl alcohol copolymer 41 and the second polyethylene layer 51, and the fixation mode can effectively prevent the second polyethylene layer 51 from being twisted on the inner side of the vinyl alcohol copolymer 41, improve the stability of the connection between the second polyethylene layer 51 and the vinyl alcohol copolymer 41, the material of the back-shaped metal ring 1 is metal, the back-shaped metal ring 1 plays a protective role for the first polyethylene layer 2, and can prevent the first polyethylene layer 2 from being broken due to external impact, and the back-shaped metal ring 1 can support the internal device, the interval between the back-shaped metal rings 1 allows the wire penetrating pipe to bend, when subjected to external impact, the back-shaped metal ring 1 will move with the first polyethylene layer 2, the first polyethylene layer 2 extrudes the rubber ring 31, and the interval between the first polyethylene layer 2 and the vinyl alcohol copolymer 41 has a certain buffer distance when the first polyethylene layer 2 is impacted, the deformed rubber ring 31 extrudes, the air in the buffer ring groove 32 flows out from the air vent 34, the through hole of the air vent 34 is thin, has a certain damping effect, the rubber ring 31 expands towards the front end and the rear end, the rubber ring 31 pulls the rubber column 33 to deform, the rubber column 33 plays a buffering role when the rubber ring 31 deforms, and can quickly reset the shape of the rubber ring 31, thereby realizing the buffering role of the first polyethylene layer 2, thereby protecting the vinyl alcohol copolymer 41 from being damaged, preventing the first polyethylene layer 2 from being broken to prevent moisture in the air from entering, ensuring that the vinyl alcohol copolymer 41 is in contact with water, and ensuring the protection performance of the vinyl alcohol copolymer 41.

[0034] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A composite high-barrier oxygen and water resistant conduit, comprising a loop-shaped metal ring (1) and a first polyethylene layer (2), characterized in that: The inside of the metal ring (1) is fixedly connected with a first polyethylene layer (2), the inside of the first polyethylene layer (2) is fixedly connected with a buffer assembly (3), the inside of the buffer assembly (3) is fixedly connected with an oxygen-proof assembly (4), the inside of the oxygen-proof assembly (4) is fixedly connected with an inner layer assembly (5), the buffer assembly (3) comprises a rubber ring (31), the inside of the rubber ring (31) is provided with a buffer ring groove (32), the inside of the buffer ring groove (32) provided by the rubber ring (31) is fixedly connected with a rubber column (33), the inside of the rubber ring (31) is provided with a vent (34), the oxygen-proof assembly (4) comprises an ethylene-vinyl alcohol copolymer (41), the inside of the ethylene-vinyl alcohol copolymer (41) is provided with a limiting channel (42), the inside of the ethylene-vinyl alcohol copolymer (41) close to the limiting channel (42) is provided with a glue inlet (43), and the inner layer assembly (5) comprises a second polyethylene layer (51), the outside of the second polyethylene layer (51) is fixedly connected with a convex plate (52), the inside of the convex plate (52) is provided with a glue pouring channel (53), and the inside of the convex plate (52) is provided with a glue outlet hole (54).

2. The composite high-barrier oxygen and water resistant pipe-penetration tube according to claim 1, characterized in that: The shape of the metal ring (1) is a circular ring, the metal ring (1) is equidistantly distributed on the outside of the first polyethylene layer (2), the inside of the first polyethylene layer (2) is hollow, and a spacing is arranged between the first polyethylene layer (2) and the ethylene-vinyl alcohol copolymer (41).

3. The composite high-barrier oxygen and water resistant pipe-penetration tube according to claim 1, characterized in that: The inside of the first polyethylene layer (2) is fixedly connected with the outside of the rubber ring (31), the rubber ring (31) is a rhombic ring shape, the buffer ring groove (32) is annular, and the inside of the rubber ring (31) is fixedly connected with the outside of the ethylene-vinyl alcohol copolymer (41).

4. The composite high-barrier oxygen and water resistant pipe-penetration tube according to claim 1, characterized in that: The front end and the rear end of the rubber column (33) are fixed at the front end and the rear end of the rubber ring (31), the rubber column (33) is embedded and installed on the inside of the buffer ring groove (32), and the rubber column (33) is equidistantly distributed on the inside of the buffer ring groove (32) in the shape of a polar axis.

5. The composite high barrier oxygen and water resistant pipe-penetration conduit according to claim 1, characterized in that: The inside of the ethylene-vinyl alcohol copolymer (41) is hollow, the inside of the ethylene-vinyl alcohol copolymer (41) is close to the outside of the second polyethylene layer (51), and the limiting channel (42) is rectangular and trapezoidal.

6. The composite high barrier oxygen and water resistant pipe-penetration conduit according to claim 1, characterized in that: One end of the limiting channel (42) penetrates the inside of the ethylene-vinyl alcohol copolymer (41), the limiting channel (42) is in communication with the inside of the ethylene-vinyl alcohol copolymer (41), the convex plate (52) slides on the inside of the limiting channel (42), the glue inlet (43) is aligned with the glue outlet hole (54), and the number of the glue inlet (43) is the same as that of the glue outlet hole (54).

7. The composite high barrier oxygen and water resistant pipe-penetration conduit according to claim 1, characterized in that: The convex plate (52) is rectangular and trapezoidal, the glue pouring channel (53) penetrates the front end and the rear end of the convex plate (52), the two ends of the glue outlet hole (54) penetrate the inside of the convex plate (52), and the glue outlet hole (54) is in communication with the glue pouring channel (53).