Compression-resistant leakage-proof fire hose

Abstract

The utility model relates to a compression-resistant leakage-proof fire hose which comprises an inner pipe, a lining, a compression-resistant assembly, a warp and weft woven layer, a wear-resistant layer and a plurality of supporting pieces. The lining is arranged on the inner circumferential wall of the inner pipe, the compression-resistant assembly is arranged on the outer side of the inner pipe, and the warp and weft woven layer is arranged on the outer side of the compression-resistant assembly in a sleeving mode. According to the compression-resistant and leakage-proof fire hose, the supporting pieces are distributed in the annular array mode, the stability of the fire hose in all directions is guaranteed, the fire hose can disperse pressure more evenly under the action of external force, the contact area between the fire hose and the ground is effectively reduced through the arc-shaped design of the cross sections of the front sides of the supporting pieces, and therefore the fire hose is more stable. The friction force between the water hose and the ground in the arranging and stretching process is reduced, the water hose is easier to drag and arrange, the sliding performance of the water hose is further enhanced through the lubricating coating coated on the outer side of the supporting piece, resistance and abrasion caused by friction are reduced, the durability of the water hose is improved, and more labor is saved in operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire hose technical field, concretely is a kind of anti-pressure leakproof fire hose. BACKGROUND

[0002] Fire hose is used to transport high-pressure water or foam etc. Flame-retardant liquid hose, traditional fire hose is lined with rubber, outer surface is wrapped with flax braid, advanced fire hose is made of polyurethane etc. Polymer material, both ends of fire hose have metal joint, can be connected to another hose to extend distance or be connected to nozzle to increase liquid injection pressure.

[0003] A significant problem of current fire hose is that its wear resistance is insufficient. In use, fire hose inevitably rubs with ground, and this friction causes the surface of hose to wear rapidly. Since fire hose needs to bear certain pressure when transmitting water solution, worn hose often cannot continue to effectively bear this pressure, and is prone to rupture, which seriously shortens the service life of fire hose. SUMMARY

[0004] In view of the deficiencies of prior art, the utility model provides a kind of anti-pressure leakproof fire hose, solve the problem proposed in background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of anti-pressure leakproof fire hose, including inner tube, inner lining, anti-pressure component, warp and weft braided layer, wear layer and several support pieces;

[0006] The inner lining is arranged at the inner peripheral wall of the inner tube, the anti-pressure component is arranged at the outer side of the inner tube, the warp and weft braided layer is sleeved at the outer side of the anti-pressure component, and the wear layer is arranged at the outer side of the warp and weft braided layer.

[0007] Several support pieces are arranged at the outer side of the wear layer.

[0008] Further, the inner lining is a polyurethane waterproof composite film layer.

[0009] Further, the thickness of the inner lining is 0.2mm.

[0010] Further, the anti-pressure component includes an elastic layer arranged between the inner tube and the warp and weft braided layer, and a plurality of through holes are formed in the elastic layer along the axial direction.

[0011] Further, the elastic layer is a thermoplastic elastomer layer.

[0012] Further, the plurality of through holes are arranged in a ring array in the elastic layer.

[0013] Further, the number of the plurality of through holes is 10.

[0014] Further, the thickness of the elastic layer is 1mm.

[0015] Further, the shape of the cross section of the front side of the support is arc-shaped, and a lubricating coating is coated on the outer side of the support.

[0016] Further, the number of the plurality of supports is eight, and the plurality of supports are distributed in a ring array on the outer side of the wear-resistant layer.

[0017] A certain gap is reserved between the adjacent two supports.

[0018] Compared with the prior art, the technical scheme of the application has the following beneficial effects:

[0019] 1. The anti-pressure and anti-leakage fire hose, wherein the supports are distributed in a ring array, ensuring the stability of the hose in all directions, so that the hose can more evenly disperse the pressure when subjected to external force, and the arc-shaped design of the cross section of the front side of the support effectively reduces the contact area with the ground, reduces the friction between the hose and the ground during arrangement and stretching, so that the hose is more easily dragged and arranged, and the lubricating coating coated on the outer side of the support further enhances the sliding property, reduces the resistance and wear caused by friction, improves the durability of the hose, and makes the operation more labor-saving.

[0020] 2. The anti-pressure and anti-leakage fire hose, wherein the introduction of the anti-pressure assembly, especially the elastic layer as the core part, is made of thermoplastic elastomer material, which significantly enhances the pressure resistance of the hose, so that it can withstand a large external pressure without deformation or damage, the through holes in the elastic layer not only reduce the weight, but also improve the air permeability, which helps to prevent the accumulation of internal water vapor, further enhances the durability and service life of the hose. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a structural schematic view of the utility model;

[0022] Fig. 2 It is a structural schematic view of the utility model.

[0023] In the figure: 1, inner tube; 2, inner liner; 3, anti-pressure assembly; 301, elastic layer; 302, through hole; 4, warp and weft woven layer; 5, wear-resistant layer; 6, support; 7, lubricating coating. DETAILED DESCRIPTION

[0024] 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, rather than 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 scope of the utility model.

[0025] Please refer to Figs. 1-2 The anti-pressure and leakage-proof fire hose in the embodiment is used for increasing the anti-pressure and leakage-proof effect of the fire hose.

[0026] Specifically, the anti-pressure and leakage-proof fire hose comprises an inner tube 1, an inner liner 2, an anti-pressure assembly 3, a warp and weft woven layer 4, a wear-resistant layer 5 and a plurality of supporting pieces 6. The inner liner 2 is arranged on the inner circumferential wall of the inner tube 1, the anti-pressure assembly 3 is arranged on the outer side of the inner tube 1, the warp and weft woven layer 4 is sleeved on the outer side of the anti-pressure assembly 3, and the wear-resistant layer 5 is arranged on the outer side of the warp and weft woven layer 4. The plurality of supporting pieces 6 are arranged on the outer side of the wear-resistant layer 5.

[0027] In actual arrangement, the inner liner 2 can protect the inner tube 1 from direct abrasion or corrosion, prolong the service life of the inner tube, provide additional smoothness or sealing property, and the introduction of the anti-pressure assembly 3 significantly enhances the anti-pressure capacity of the hose, so that the hose can withstand a large external pressure without deformation or damage, and is suitable for a high-pressure environment.

[0028] In addition, the warp and weft woven layer 4 not only provides additional strength, but also enhances the overall strength and tensile resistance of the hose through the woven structure, so that the structure is more tough and durable. The wear-resistant layer 5 is arranged on the outermost side of the hose, effectively resists external abrasion, protects the internal structure from damage by the external environment, and prolongs the overall service life.

[0029] It should be noted that the inner liner 2 is a polyurethane waterproof composite film layer, and the thickness of the inner liner 2 is 0.2 mm.

[0030] In actual arrangement, the polyurethane waterproof composite film layer as the inner liner 2 has excellent waterproof performance, can effectively prevent water from penetrating into the inner tube 1, and ensure that the hose will not cause loss or affect the use effect due to leakage when transmitting aqueous solution. The polyurethane material itself has good elasticity and wear resistance, so that the 0.2 mm thick polyurethane waterproof composite film layer inner liner 2 can maintain lightness while having sufficient strength and durability, and can withstand a certain pressure and friction without being easily damaged.

[0031] Further, in order to reduce the friction between the water hose and the ground, and improve the convenience of the water hose during the arrangement and stretching process, the front side cross section of the support 6 is arc-shaped, a lubricating coating 7 is coated on the outer side of the support 6, the number of the support 6 is eight, and the support 6 is arranged in a ring array on the outer side of the wear-resistant layer 5. A certain gap is reserved between the adjacent two supports 6.

[0032] In actual arrangement, the arc-shaped design of the front side cross section of the support 6 effectively reduces the contact area with the ground, thereby reducing the friction between the water hose and the ground during the arrangement and stretching process, so that the water hose is more easily dragged and arranged, and the convenience of operation is improved.

[0033] Further, the lubricating coating 7 coated on the outer side of the support 6 further enhances the sliding property, so that the water hose is more smooth during the dragging process, the resistance and wear caused by friction are reduced, the durability of the water hose is improved, and the operation is more labor-saving.

[0034] In addition, the eight supports 6 arranged in a ring array ensure the stability of the water hose in all directions, and also make the water hose more evenly disperse the pressure when subjected to external force, thereby improving the overall load-bearing capacity and anti-deformation ability.

[0035] In detail, in order to increase the pressure resistance of the water hose, the pressure resistance assembly 3 in the embodiment includes an elastic layer 301 arranged between the inner tube 1 and the warp and weft woven layer 4, and a plurality of through holes 302 are arranged in the elastic layer 301 along the axial line direction.

[0036] Specifically, the elastic layer 301 is a thermoplastic elastomer layer, a plurality of through holes 302 are arranged in the elastic layer 301 in a ring array, the number of the through holes 302 is 30-35, and the thickness of the elastic layer 301 is 1mm.

[0037] In actual arrangement, the elastic layer 301 as the core part of the pressure resistance assembly 3 is made of thermoplastic elastomer material, has excellent elasticity and recovery, can absorb and disperse the pressure when the water hose is subjected to external pressure, effectively prevents the inner tube 1 from being deformed or broken due to excessive pressure, and thereby significantly enhances the pressure resistance of the water hose.

[0038] Further, the plurality of through holes 302 arranged in the elastic layer 301 along the axial line direction not only reduce the weight of the elastic layer 301, but also improve the air permeability, which is helpful to reduce the accumulation of internal water vapor during the use of the water hose, prevent mildew or corrosion caused by excessive water vapor, and thereby prolong the service life of the water hose.

[0039] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant and leakage-proof fire hose, characterized in that: The inner tube (1), the inner liner (2), the compression-resistant assembly (3), the warp-weft woven layer (4), the wear-resistant layer (5), and the plurality of support pieces (6) are included. The inner liner (2) is arranged on the inner circumferential wall of the inner tube (1), the compression-resistant assembly (3) is arranged on the outer side of the inner tube (1), the warp-weft woven layer (4) is sleeved on the outer side of the compression-resistant assembly (3), and the wear-resistant layer (5) is arranged on the outer side of the warp-weft woven layer (4). The plurality of support pieces (6) are arranged on the outer side of the wear-resistant layer (5).

2. The pressure-resistant and leakage-proof fire hose according to claim 1, characterized in that: The inner liner (2) is a polyurethane waterproof composite film layer.

3. The pressure-resistant and leakage-proof fire hose according to claim 2, characterized in that: The thickness of the inner liner (2) is 0.2 mm.

4. The pressure-resistant and leakage-proof fire hose according to claim 1, characterized in that: The compression-resistant assembly (3) includes an elastic layer (301) arranged between the inner tube (1) and the warp-weft woven layer (4), and a plurality of through holes (302) are arranged in the elastic layer (301) along the axial direction of the elastic layer (301).

5. The pressure-resistant and leakage-proof fire hose according to claim 4, characterized in that: The elastic layer (301) is a thermoplastic elastomer layer.

6. The pressure-resistant and leakage-proof fire hose according to claim 4, characterized in that: The plurality of through holes (302) are arranged in an annular array on the inside of the elastic layer (301).

7. The pressure-resistant and leakage-proof fire hose according to claim 4, characterized in that: The number of the plurality of through holes (302) is 30-35.

8. The pressure-resistant and leakage-proof fire hose according to claim 4, characterized in that: The thickness of the elastic layer (301) is 1 mm.

9. The pressure-resistant and leakage-proof fire hose according to claim 1, characterized in that: The shape of the cross section of the front side of the support piece (6) is arc-shaped, and a lubricating coating (7) is coated on the outer side of the support piece (6).

10. The pressure-resistant and leakage-proof fire hose according to claim 9, characterized in that: The number of the plurality of support pieces (6) is eight, and the plurality of support pieces (6) are arranged in an annular array on the outer side of the wear-resistant layer (5). A certain gap is reserved between adjacent two support pieces (6).

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