High-pressure-resistant composite hose

Abstract

The utility model discloses a high-pressure-resistant composite hose which comprises an inner hose body and a plurality of tension bands. The outer side of the inner hose is sequentially wrapped with a reinforcing layer, a stainless steel mesh, a protective layer and a protective coating; tension bands are sequentially arranged on the stainless steel mesh in the length direction of the stainless steel mesh, and the stainless steel mesh is fastened on the reinforcing layer through the tension bands. A plurality of reinforcement hoop grooves are sequentially formed in the outer ring face of the reinforcing layer in the length direction of the reinforcing layer, and a plurality of hoop rings are sequentially clamped in the reinforcement hoop grooves. And the inner hose, the reinforcing layer and the protective layer are connected in a bonding manner. And the reinforcing layer is made of a polyester fiber material. The tensile strength of steel wires adopted by the stainless steel net is larger than or equal to 2000 MPa. The stainless steel net is arranged on the reinforcing layer in a fixed-distance limiting mode through the tension band, and therefore the problems that the stainless steel net deforms after the water pipe is used for a long time, and even the bonding position in the water pipe is layered due to the deformation of the stainless steel net can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water pipe, specifically is a high pressure resistant composite hose. BACKGROUND

[0002] In many industrial fields, such as petrochemical industry, hydraulic machinery, high pressure water jet cleaning, etc., soft pipes capable of bearing high pressure are needed to transport various fluid media. The traditional soft pipe has certain limitations in pressure resistance performance. When the internal pressure is too high, it is easy to break and leak, which not only affects the normal production, but also may cause safety accidents. Therefore, a high pressure resistant composite hose is needed.

[0003] In the prior art, the utility model discloses a high pressure metal hose with the patent number CN202420234254.9, which comprises a metal bellows, the metal bellows is fixedly connected with an adapter at the end, the metal bellows is provided with a reinforcing layer outside, the reinforcing layer and the metal bellows are provided with an isolation layer, the adapter is provided with a buckling sleeve, the adapter and the buckling sleeve are provided with a anti-pulling structure for fixing the isolation layer and the reinforcing layer; the buckling sleeve is arranged outside the connection between the metal bellows and the adapter, so as to reinforce the connection. By arranging the isolation layer between the metal bellows and the reinforcing layer, the pressure stress of the reinforcing layer on the bellows can be effectively reduced, the micro friction between the reinforcing layer and the bellows can be eliminated, and the micro damage can be eliminated; by arranging the buckling sleeve and the anti-pulling structure, the phenomenon of strength reduction of the reinforcing layer caused by welding in the traditional technology is avoided.

[0004] The above-mentioned patent provides a composite hose that can be used under high pressure. The composite hose is provided with a multi-layer structure to enhance the pressure resistance of the inner rubber layer. The buckling sleeve and the anti-pulling structure are arranged to avoid the phenomenon of strength reduction of the reinforcing layer caused by welding in the traditional technology. However, the stainless steel mesh of the composite hose is directly wrapped inside the composite hose. After long-term use of the composite hose, frequent pulling and bending of the composite hose will cause deformation of the stainless steel mesh, resulting in a certain deviation. The deformation of the stainless steel mesh will cause the structure of the inner and outer layers of the stainless steel mesh to separate, resulting in damage to the composite hose. Therefore, further improvement is needed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high pressure resistant composite hose to improve the problem that the stainless steel mesh of the existing composite hose is directly wrapped inside the composite hose. After long-term use of the composite hose, frequent pulling and bending of the composite hose will cause deformation of the stainless steel mesh, resulting in a certain deviation. The deformation of the stainless steel mesh will cause the structure of the inner and outer layers of the stainless steel mesh to separate, resulting in damage to the composite hose.

[0006] The utility model discloses a kind of high-pressure-resistant composite hoses, including inner hose, in addition still include several hoops;The outside of the inner hose is sequentially wrapped with reinforcing layer, stainless steel net, protective layer and protective coating;The hoop is sequentially arranged on the stainless steel net along its length direction, and the stainless steel net is fastened on reinforcing layer by hoop.

[0007] Preferably, the reinforcing layer is sequentially provided with a plurality of hoop grooves along its length direction on the outer annular surface, and the plurality of hoops are sequentially clamped in the hoop grooves.

[0008] Preferably, the inner hose, reinforcing layer and protective layer are connected by adhesion at the bonding position.

[0009] Preferably, the reinforcing layer is made of polyester fiber material.

[0010] Preferably, the tensile strength of the steel wire used in the stainless steel net is greater than or equal to 2000 MPa.

[0011] Preferably, the protective layer is made of polyethylene, polyvinyl chloride or polyurethane.

[0012] Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses a hoop for limiting the stainless steel net on the reinforcing layer at a certain distance, so that the stainless steel net will not deviate after local deformation, thereby preventing the water pipe from being used for a long time, the stainless steel net from being deformed and deviated, and the internal adhesive layer of the water pipe from being separated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the three-dimensional structure schematic diagram of the utility model;

[0014] Figure 2 is the sectional structure schematic diagram of the utility model;

[0015] Figure 3 is the three-dimensional structure schematic diagram of the reinforcing layer of the utility model.

[0016] In the figure: 1, inner hose; 2, reinforcing layer; 201, hoop groove; 3, stainless steel net; 4, protective layer; 5, protective coating; 6, hoop. DETAILED DESCRIPTION

[0017] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication of two elements or the interaction of two elements.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0018] The following further illustrates the utility model in conjunction with the drawings and specific embodiments: Embodiment 1

[0019] As Figure 1 , Figure 2 and Figure 3 Indicated, a kind of high-pressure-resistant composite hose, including inner hose 1, additionally including several hoops 6;The outside of inner hose 1 is sequentially wrapped with reinforcing layer 2, stainless steel mesh 3, protective layer 4 and protective coating 5;The adhering connection of inner hose 1, reinforcing layer 2 and protective layer 4 is adhered.The material of reinforcing layer 2 is polyester fiber material.Reinforcing layer 2 uses high-strength polyester fiber material, so that reinforcing layer 2 has higher compressive strength, can effectively enhance the compression resistance of hose, prevent hose burst or deformation.Stainless steel mesh 3 uses steel wire, and tensile strength is greater than or equal to 2000MPa.Through setting the steel wire mesh with higher tensile strength, the tensile capacity of water pipe can be enhanced, and can be wrapped in reinforcing layer 2 outside, also can strengthen the compression resistance of water pipe.The material of protective layer 4 is polyethylene or polyvinyl chloride etc.Material.Polyethylene or polyvinyl chloride etc. are used in protective layer, with wear resistance, corrosion resistance and anti-ultraviolet etc.Performance, can effectively protect water pipe, avoid its from external abrasion.Stainless steel mesh 3 is sequentially provided with hoop 6 along its length direction, and stainless steel mesh 3 is fastened on reinforcing layer 2 by hoop 6.The outer circumferential surface of reinforcing layer 2 is sequentially provided with several muscle hoop grooves 201 along its length direction, and several hoops 6 are sequentially clamped in muscle hoop groove 201.Through setting muscle hoop groove 201 on the outer surface of reinforcing layer 2, hoop 6 can be conveniently positioned, so as to realize that stainless steel mesh 3 is tightly wrapped on reinforcing layer 2, and can be fixed every interval, prevent stainless steel mesh 3 from being deformed and falling off due to the frequent use and pulling of water pipe. Embodiment 2

[0020] As Figure 1 , Figure 2 and Figure 3As shown, a high-pressure resistant composite hose comprises an inner hose 1, and a plurality of hoops 6; the outer side of the inner hose 1 is sequentially wrapped with a reinforcing layer 2, a stainless steel mesh 3, a protective layer 4 and a protective coating 5; the inner hose 1, the reinforcing layer 2 and the protective layer 4 are connected by adhesion. The reinforcing layer 2 is made of polyester fiber material. The tensile strength of the steel wire used in the stainless steel mesh 3 is greater than or equal to 2000 MPa. The protective layer 4 is made of polyethylene or polyvinyl chloride material. The stainless steel mesh 3 is sequentially provided with the hoops 6 along the length direction thereof, and is fastened to the reinforcing layer 2 through the hoops 6. The reinforcing layer 2 is sequentially provided with a plurality of reinforcing groove 201 along the length direction of the outer ring surface thereof, and the plurality of hoops 6 are sequentially clamped in the reinforcing groove 201.

[0021] The working principle of the utility model is: in the process of using the water pipe, the reinforcing layer 2 can be supported on the outer side of the inner hose 1, thereby enhancing the compression resistance of the inner hose 1; the stainless steel mesh 3 is fixedly arranged on the reinforcing layer 2 at a distance through the hoops 6, and then is wrapped through the protective layer 4, which can not only prevent the deformation of the stainless steel mesh 3 caused by time change, but also increase the compression resistance and tensile strength of the water pipe through the stainless steel mesh 3.

[0022] In conclusion, the utility model limits the distance of the stainless steel mesh 3 arranged on the reinforcing layer 2 through the hoops 6, so that the stainless steel mesh 3 will not deviate after partial deformation, thereby preventing the problem of delamination of the inner adhesion of the water pipe caused by the deviation of the stainless steel mesh 3 after long-time use.

[0023] The material of the inner hose 1 is nylon, high-density polyethylene or polytetrafluoroethylene; the reinforcing layer 2 comprises a main reinforcing layer and a secondary reinforcing layer, the material of the main reinforcing layer is high-strength copper-plated steel wire, the tensile strength is greater than or equal to 2750 MPa, the steel wire winding structure has two layers or four layers, and the adjacent layers are alternately wound to form; the outermost layer of the main reinforcing layer steel wire winding is provided with a secondary reinforcing layer, the secondary reinforcing layer is a fiber woven structure, and the material is polyester fiber or aramid fiber; the high-viscosity adhesive, including chloroprene glue, is coated between the steel wire layers of the main reinforcing layer to enhance the effective adhesion between the steel wires; the protective layer 4 is a fiber winding structure, the material is polyester industrial filament or aramid fiber, and the fiber winding direction is consistent with the adjacent steel wire winding direction; the protective coating 5 is extrusion coated, and the material is polyethylene or polyurethane.

[0024] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can be variously changed and varied. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-pressure resistant composite hose, comprising an inner hose (1), characterized in that, The outer side of the inner flexible tube (1) is sequentially wrapped with a reinforcing layer (2), a stainless steel mesh (3), a protective layer (4) and a protective coating (5); a number of hoop rings (6) are sequentially arranged on the stainless steel mesh (3) along its length direction, and the stainless steel mesh (3) is fastened to the reinforcing layer (2) by each hoop ring (6).

2. The high-pressure resistant composite hose according to claim 1, characterized in that, The outer ring surface of the reinforcing layer (2) has a number of reinforcing grooves (201) arranged sequentially along its length direction, and a number of the hoop rings (6) are sequentially installed in the reinforcing grooves (201).

3. The high-pressure resistant composite hose according to claim 1, characterized in that, The inner hose (1), reinforcing layer (2) and protective layer (4) are all bonded together by adhesive.

4. The high-pressure resistant composite hose according to claim 1, characterized in that, The reinforcing layer (2) is made of polyester fiber.

5. The high-pressure resistant composite hose according to claim 1, characterized in that, The steel wire used in the stainless steel mesh (3) has a tensile strength greater than or equal to 2000 MPa.

6. The high-pressure resistant composite hose according to claim 1, characterized in that, The protective layer (4) is made of polyethylene, polyvinyl chloride, or polyurethane.

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