CN211039973U

CN211039973U - Multilayer composite gas hose

Info

Publication number: CN211039973U
Application number: CN201921882882.3U
Authority: CN
Inventors: 钱镭
Original assignee: Qian's Functional Plastic Co ltd
Current assignee: Qian's Functional Plastic Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-17
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a compound gas hose of multilayer relates to gas hose technical field, and is lower for solving current gas hose compressive capacity, yielding and tearing, and the lower problem of whole security. The gas hose main body comprises a composite hose inner layer pipe, a composite hose outer layer pipe, a halogen-free flame retardant layer, a metal hose armor layer, an ethylene propylene rubber layer and a PVC outer layer waterproof sheath, wherein the composite hose outer layer pipe is positioned outside the composite hose inner layer pipe, the halogen-free flame retardant layer is positioned outside the composite hose outer layer pipe, the metal hose armor layer is positioned outside the halogen-free flame retardant layer, the ethylene propylene rubber layer is positioned outside the metal hose armor layer, and the PVC outer layer waterproof sheath is positioned outside the ethylene propylene rubber layer.

Description

Multilayer composite gas hose

Technical Field

The utility model relates to a gas hose technical field specifically is a compound gas hose of multilayer.

Background

The gas is the general term for gas fuel, and it can be burned to release heat for urban residents and industrial enterprises. The gas hose is a flexible pipe for conveying natural gas, coal gas or liquefied petroleum gas, and at present, a single-layer material or multi-layer composite material pipe is usually adopted as a gas conveying channel for household gas pipes for liquefied gas, natural gas and coal gas.

However, the existing gas hose has low pressure resistance, is easy to deform and tear, and has low overall safety; therefore, the existing requirements are not met, and a multilayer composite gas hose is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound gas hose of multilayer to the current gas hose compressive capacity who provides in solving above-mentioned background art is lower, yielding and tearing, and the lower problem of whole security.

In order to achieve the above object, the utility model provides a following technical scheme: the multilayer composite gas hose comprises a gas hose main body, wherein the gas hose main body comprises a composite hose inner layer pipe, a composite hose outer layer pipe, a halogen-free flame retardant layer, a metal hose armor layer, an ethylene propylene rubber layer and a PVC outer layer waterproof sheath.

Preferably, the outer layer pipe of the composite hose is positioned outside the inner layer pipe of the composite hose, the halogen-free flame retardant layer is positioned outside the outer layer pipe of the composite hose, the metal hose armor layer is positioned outside the halogen-free flame retardant layer, the ethylene propylene rubber layer is positioned outside the metal hose armor layer, and the PVC outer layer waterproof sheath is positioned outside the ethylene propylene rubber layer.

Preferably, the halogen-free flame-retardant layer comprises a flame-retardant non-woven fabric and a flame retardant filling layer, and the flame retardant filling layer is positioned inside the flame-retardant non-woven fabric.

Preferably, a plurality of convex edges are arranged outside the metal hose armor layer, a groove is arranged between the two convex edges, and the groove, the convex edges and the metal hose armor layer are arranged into an integrated structure.

Preferably, a plurality of support snap rings are installed on the outer portion of the gas hose body, and the support snap rings are connected with the gas hose body through clamping grooves.

Preferably, the outer layer pipe of the composite hose is connected with the inner layer pipe of the composite hose in an adhesive manner, the halogen-free flame retardant layer is connected with the outer layer pipe of the composite hose in an adhesive manner, the metal hose armor layer is connected with the halogen-free flame retardant layer in an adhesive manner, the ethylene propylene rubber layer is connected with the metal hose armor layer in an adhesive manner, and the PVC outer layer waterproof sheath is connected with the ethylene propylene rubber layer in an adhesive manner.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the plurality of support snap rings are arranged outside the gas hose main body, so that the gas hose main body is not directly contacted with the ground when being contacted with the ground, the gas hose main body is prevented from being affected with damp due to accumulated water on the ground, and the gas hose main body is protected;

2. the utility model discloses a be provided with a plurality of chimbs and recess in the outside of metal collapsible tube armor, form the ripple structure, on the one hand increase with the area of contact and the frictional force on the EPR layer, increase simultaneously with the area of contact and the frictional force of PVC outer waterproof sheath, guarantee to be difficult for relatively droing between long-term work EPR layer and PVC outer waterproof sheath and the gas flexible pipe main part, on the other hand the ripple structure atress condition is reasonable, the load distribution is even, has certain anti deformability, makes gas flexible pipe main part non-deformable and tear, has certain compressive capacity;

3. the utility model discloses an EPT rubber layer can be high temperature resistant low temperature resistant has improved the high temperature resistant low temperature resistance ability of gas hose main part, can reach waterproof effect through the outer waterproof sheath of PVC to the outer waterproof sheath of PVC has better tensile, compressive strength, further improves compressive capacity, makes gas hose main part non-deformable and tears, and the security is higher.

Drawings

Fig. 1 is a schematic structural view of a multilayer composite gas hose according to the present invention;

FIG. 2 is a schematic structural view of the halogen-free flame retardant layer of the present invention;

fig. 3 is a schematic structural view of the gas hose body of the present invention.

In the figure: 1. a gas hose body; 2. an inner layer tube of the composite hose; 3. an outer layer pipe of the composite hose; 4. a halogen-free flame retardant layer; 5. a metal hose armor layer; 6. an ethylene propylene rubber layer; 7. a PVC outer waterproof sheath; 8. flame-retardant non-woven fabric; 9. a flame retardant filler layer; 10. a convex edge; 11. a groove; 12. supporting the snap ring.

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.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a compound gas hose of multilayer, includes gas hose main part 1, and gas hose main part 1 includes compound hose inlayer pipe 2, compound hose outer pipe 3, does not have steamed flame retardant coating 4, metal collapsible tube armor 5, EPR rubber layer 6 and the outer waterproof sheath of PVC 7, and whole compressive capacity is higher, non-deformable and difficult tearing, and whole security is higher.

Further, the outer layer pipe 3 of the composite hose is located outside the inner layer pipe 2 of the composite hose, the halogen-free flame retardant layer 4 is located outside the outer layer pipe 3 of the composite hose, the metal hose armor layer 5 is located outside the halogen-free flame retardant layer 4, the ethylene propylene rubber layer 6 is located outside the metal hose armor layer 5, the PVC outer layer waterproof sheath 7 is located outside the ethylene propylene rubber layer 6, the ethylene propylene rubber layer 6 can resist high temperature and low temperature, the high temperature resistance and low temperature resistance of the gas hose main body 1 are improved, and the waterproof effect can be achieved through the PVC outer layer waterproof sheath 7.

Furthermore, the halogen-free flame-retardant layer 4 comprises a flame-retardant non-woven fabric 8 and a flame retardant filling layer 9, the flame retardant filling layer 9 is located inside the flame-retardant non-woven fabric 8, the flame-retardant effect is good, and the overall safety is improved.

Further, the outside of metal collapsible tube armor 5 is provided with a plurality of chimbs 10, be provided with recess 11 between two chimbs 10, and recess 11, chimb 10 and metal collapsible tube armor 5 set up to the integrated into one piece structure, on the one hand increase and the area of contact and the frictional force of outer waterproof sheath 7 of EPT rubber layer 6 and PVC, even guarantee after long-term the use, also can not drop easily between outer waterproof sheath 7 of EPT rubber layer 6 and PVC and the gas hose main part 1, on the other hand ripple construction atress condition is reasonable, load distribution is even, certain anti deformability has.

Further, the externally mounted of gas hose main part 1 has a plurality of support snap rings 12, and supports and be connected through the draw-in groove between snap ring 12 and the gas hose main part 1, makes gas hose main part 1 not direct and ground contact, avoids ground to have ponding to lead to gas hose main part 1 to wet, plays a guard action to gas hose main part 1.

Further, the outer layer pipe 3 of the composite hose is connected with the inner layer pipe 2 of the composite hose in an adhesive manner, the halogen-free flame retardant layer 4 is connected with the outer layer pipe 3 of the composite hose in an adhesive manner, the metal hose armor layer 5 is connected with the halogen-free flame retardant layer 4 in an adhesive manner, the ethylene propylene rubber layer 6 is connected with the metal hose armor layer 5 in an adhesive manner, the PVC outer layer waterproof sheath 7 is connected with the ethylene propylene rubber layer 6 in an adhesive manner, the utilization rate of materials is high, the cost is low, the stress concentration on all adhesive surfaces is small, and therefore the fatigue resistance is good, and the.

The working principle is as follows: when in use, the gas hose main body 1 and the gas source are connected with a stove through pipe joints, a plurality of support snap rings 12 are arranged outside the gas hose main body 1, when the gas hose main body 1 is in contact with the ground, the effect of isolating the ground is achieved, the gas hose main body 1 is not directly in contact with the ground, the gas hose main body 1 is prevented from being affected with damp due to accumulated water on the ground, the gas hose main body 1 is protected, a plurality of convex edges 10 and grooves 11 outside the metal hose armor layer 5 form a corrugated structure, on one hand, the contact area and the friction force between the ethylene propylene rubber layer 6 and the PVC outer waterproof sheath 7 are increased, the ethylene propylene rubber layer 6 and the PVC outer waterproof sheath 7 and the gas hose main body 1 can not easily fall off even after long-term use, on the other hand, the corrugated structure is reasonable in stress condition and uniform in load distribution, the PVC outer waterproof sheath 7 has good tensile strength and compressive strength, the compressive capacity is further improved, and the gas hose main body 1 is not easy to deform and tear.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a compound gas hose of multilayer, includes gas hose main part (1), its characterized in that: the gas hose body (1) comprises a composite hose inner layer pipe (2), a composite hose outer layer pipe (3), a halogen-free flame retardant layer (4), a metal hose armor layer (5), an ethylene propylene rubber layer (6) and a PVC outer layer waterproof sheath (7).

2. The multilayer composite gas hose according to claim 1, characterized in that: the outer layer pipe (3) of the composite hose is located outside the inner layer pipe (2) of the composite hose, the halogen-free flame retardant layer (4) is located outside the outer layer pipe (3) of the composite hose, the metal hose armor layer (5) is located outside the halogen-free flame retardant layer (4), the ethylene propylene rubber layer (6) is located outside the metal hose armor layer (5), and the PVC outer layer waterproof sheath (7) is located outside the ethylene propylene rubber layer (6).

3. The multilayer composite gas hose according to claim 1, characterized in that: the halogen-free flame-retardant layer (4) comprises a flame-retardant non-woven fabric (8) and a flame retardant filling layer (9), and the flame retardant filling layer (9) is positioned inside the flame-retardant non-woven fabric (8).

4. The multilayer composite gas hose according to claim 1, characterized in that: the metal hose armor layer is characterized in that a plurality of convex edges (10) are arranged outside the metal hose armor layer (5), a groove (11) is formed between the convex edges (10), and the groove (11), the convex edges (10) and the metal hose armor layer (5) are arranged into an integrated structure.

5. The multilayer composite gas hose according to claim 1, characterized in that: the gas hose is characterized in that a plurality of supporting clamping rings (12) are arranged outside the gas hose body (1), and the supporting clamping rings (12) are connected with the gas hose body (1) through clamping grooves.

6. The multilayer composite gas hose according to claim 1, characterized in that: outer layer pipe (3) of composite hose and the outer layer pipe (2) splice connection of composite hose, there is not steamed flame retardant coating (4) and outer layer pipe (3) splice connection of composite hose, metal collapsible tube armor (5) and steamed flame retardant coating (4) splice connection, ethylene propylene rubber layer (6) and metal collapsible tube armor (5) splice connection, outer waterproof sheath of PVC (7) and ethylene propylene rubber layer (6) splice connection.