CN212080386U

CN212080386U - Combined type fire hose

Info

Publication number: CN212080386U
Application number: CN202020294660.6U
Authority: CN
Inventors: 龚卫兴; 朱伟华; 杨林耀; 葛金兴
Original assignee: Shanghai Hua Sen Fire Technology Development Co ltd
Current assignee: Shanghai Hua Sen Fire Technology Development Co ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-12-04
Anticipated expiration: 2030-03-11

Abstract

The utility model provides a combined type fire hose, including outer wear-resisting layer, intermediate pipe base layer and undercoating layer. Wherein the intermediate pipe blank layer is of a synthetic fiber woven structure; the thicknesses of the outer wear-resistant layer and the inner coating layer are respectively 3-4 times of that of the intermediate tube blank layer; a plurality of radial raised lines are arranged on the wear-resistant layer at intervals, and annular stripes are pressed on the inner coating layer. The composite fire hose of the utility model improves the strength and working pressure of the fire hose on one hand, and is suitable for being used in severe environment; on the other hand, the outer layer has good wear resistance, the surface is easy to clean, and the subsequent treatment is easy after the use.

Description

Combined type fire hose

Technical Field

The utility model belongs to the technical field of the fire hose, concretely relates to combined type fire hose.

Background

The fire hose is a main fire-fighting equipment which is necessary for fire-fighting vehicles, public places, factories, warehouses and high-rise buildings, and the service performance and the quality of the fire hose must be absolutely guaranteed. With the development trend of large-scale cities and high-rise buildings, the high-rise buildings are more and more high, so that the requirements on the waterproof zone are more and more strict. The fire hose with the pure synthetic fiber woven structure has low strength, is easy to damage in the using process, has heavier weight per unit length and lower working pressure, can not be used with a high-pressure water source, and is not suitable for being used in occasions with severe environment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a composite fire hose suitable for being used in severe occasions to solve the problems. In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a combined type fire hose has such technical characteristic: comprises an outer wear-resistant layer, an intermediate pipe blank layer and an inner coating layer. Wherein the intermediate pipe blank layer is of a synthetic fiber woven structure; the thicknesses of the outer wear-resistant layer and the inner coating layer are respectively 3-4 times of that of the intermediate tube blank layer; a plurality of radial raised lines are arranged on the wear-resistant layer at intervals, and annular stripes are pressed on the inner coating layer.

Preferably, in the utility model provides an in the combined type fire hose, outer wear-resisting layer and interior coating are the PVC coating. The PVC material has strong tensile, bending, compression and impact resistance, excellent cold resistance, electrical insulation and chemical stability, and enhances the wear resistance and impact resistance of the water hose.

Preferably, the utility model provides an among the combined type fire hose, outer wear-resisting layer is the same with interior coating's thickness, and the thickness on intermediate tube base layer is 0.2 ~ 0.3mm, and the thickness of outer wear-resisting layer and interior coating is 0.6 ~ 1.2mm respectively.

Preferably, the utility model provides an among the combined type fire hose, radial sand grip is 10 ~ 12, and the longitudinal section is triangle-shaped, highly is 0.1 ~ 0.2mm, increases the frictional property of fire hose.

Preferably, the utility model provides an among the combined type fire hose, radial sand grip and outer wear-resisting layer integrated into one piece.

Preferably, in the utility model provides an among the combined type fire hose, the width of annular stripe is 0.08 ~ 0.1 mm.

Preferably, in the utility model provides an among the combined type fire hose, the intermediate tube base layer is woven by stranded dacron yarn warp and stranded dacron filament weft and is formed.

Preferably, in the utility model provides a combined type fire hose, combined type fire hose's internal diameter specification is 25, 30, 40 or 50 mm.

Action and effect of the utility model

According to the combined type fire hose provided by the utility model, the inner coating layer and the outer wear-resistant layer are respectively arranged inside and outside the blank layer of the intermediate pipe with the synthetic fiber braided structure, and the thicknesses of the outer wear-resistant layer and the inner coating layer are respectively 3-4 times of the thickness of the blank layer of the intermediate pipe, so that on one hand, the strength and the working pressure of the fire hose are improved, and the combined type fire hose is suitable for being used in occasions with severe environment; on the other hand, the outer layer has good wear resistance, the surface is easy to clean, and the subsequent treatment is easy after the use.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of a composite fire hose according to an embodiment of the present invention;

fig. 2 is a schematic view of the longitudinal section structure of the composite fire hose in the embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and drawings. The following examples should not be construed, however, as limiting the scope of the invention.

Fig. 1 is a schematic cross-sectional structure diagram of a composite fire hose according to an embodiment of the present invention; fig. 2 is a schematic view of the longitudinal section structure of the composite fire hose in the embodiment of the present invention.

As shown in fig. 1 and 2, the composite fire hose 100 provided in this embodiment includes an outer wear-resistant layer 1, an intermediate pipe blank layer 2, and an inner coating layer 3. As shown in fig. 2, the intermediate layer 2 is a synthetic fiber woven structure, and is preferably woven by a plurality of warp yarns 21 of polyester yarn and a plurality of weft yarns 22 of polyester filament.

Outer wear-resisting layer 1 and interior coating 3 are the PVC coating, and thickness is 3 ~ 4 times of intermediate pipe base layer respectively, and in order not only to realize that fire hose has sufficient shock resistance, can be collapsible after using again, the thickness of the preferred intermediate pipe base layer of this embodiment is 0.2 ~ 0.3mm, and the thickness of outer wear-resisting layer and interior coating is 0.6 ~ 1.2mm respectively. The thicknesses of the outer wear-resistant layer 1 and the inner coating layer 3 may be the same or different, preferably the same.

The PVC material has strong tensile, bending, compression and impact resistance, excellent cold resistance, electrical insulation and chemical stability, and enhances the wear resistance and impact resistance of the water hose.

A plurality of radial convex strips 11 are arranged on the outer wear-resistant layer 1 at intervals to increase the friction of the fire hose. The radial convex strips and the outer wear-resistant layer are integrally formed, the longitudinal sections of the convex strips are triangular, and the height of the convex strips is 0.1-0.2 mm. In this embodiment, the inner diameter of the composite fire hose is 25, 30, 40 or 50mm, and the number of the longitudinal ribs is determined according to the inner diameter of the hose. When the inner diameter specification is small, the number of the convex strips is small, and if 10 convex strips are arranged, the number of the convex strips is even less; when the inner diameter is larger, the number of the convex strips is more, for example, 12 convex strips are arranged.

Annular stripes are pressed on the inner coating layer 3, the width of each annular stripe is preferably 0.08-0.1 mm, and the annular stripes are used for increasing water flow disturbance.

In the preparation of the composite fire hose 100 in this embodiment, the outer wear-resistant layer 1 and the inner coating layer 3 are simultaneously formed on both sides of the intermediate pipe blank layer 2 by a co-extrusion process. Compared with the common woven fire hose, the composite fire hose of the utility model improves the strength and working pressure of the fire hose on one hand, and is suitable for being used in the occasions with severe environment; on the other hand, the outer layer has good wear resistance, the surface is easy to clean, and the subsequent treatment is easy after the use.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A composite fire hose is characterized by comprising an outer wear-resistant layer, a middle pipe blank layer and an inner coating layer,

wherein the intermediate pipe blank layer is of a synthetic fiber woven structure;

the thicknesses of the outer wear-resistant layer and the inner coating layer are respectively 3-4 times of that of the intermediate pipe blank layer;

a plurality of radial raised lines are arranged on the outer wear-resistant layer at intervals, and annular stripes are pressed on the inner coating layer.

2. The composite fire hose of claim 1, wherein:

wherein, the outer wear-resistant layer and the inner coating layer are both PVC coatings.

3. The composite fire hose of claim 2, wherein:

the thickness of the outer wear-resistant layer is the same as that of the inner coating layer, the thickness of the intermediate pipe blank layer is 0.2-0.3 mm, and the thickness of the outer wear-resistant layer is 0.6-1.2 mm respectively.

4. The composite fire hose of claim 3, wherein:

wherein, the radial sand grip is 10 ~ 12, and the longitudinal section is triangle-shaped, and the height is 0.1 ~ 0.2 mm.

5. The composite fire hose of claim 1, wherein:

wherein, radial sand grip with outer wear-resisting layer integrated into one piece.

6. The composite fire hose of claim 1, wherein:

wherein the width of the annular stripes is 0.08-0.1 mm.

7. The composite fire hose of claim 1, wherein:

the intermediate tube blank layer is formed by weaving a plurality of strands of polyester yarn warps and a plurality of strands of polyester filament wefts.

8. The composite fire hose of claim 1, wherein:

wherein the inner diameter specification of the composite fire hose is 25, 30, 40 or 50 mm.