Conveying rubber pipe

Abstract

The utility model relates to the technical field of conveying pipelines, in particular to a conveying rubber pipe. The conveying rubber pipe comprises a pipe body, a first anti-corrosion layer, a first abrasion-resistant layer, a plurality of compression-resistant layers, a second abrasion-resistant layer and a sealing assembly, the first anti-corrosion layer is arranged on the inner circumference of the pipe body, the first abrasion-resistant layer is arranged on the inner circumference of the first anti-corrosion layer, the compression-resistant layers are wound around the outer circumference of the pipe body, and the second abrasion-resistant layer is arranged on the outer circumference of the compression-resistant layers. The sealing assemblies are arranged at the ends of the pipe bodies and used for sealing the two adjacent pipe bodies. The first anti-corrosion layer and the first wear-resistant layer are arranged on the inner periphery of the conveying rubber pipe, and the compression-resistant layer and the second wear-resistant layer are arranged on the outer periphery of the conveying rubber pipe, so that the corrosion resistance, the wear resistance and the compression resistance of the conveying rubber pipe can be improved, and the service life of the conveying rubber pipe is prolonged; the sealing assembly can improve the sealing performance of the two adjacent pipe bodies, the structures of the pipe bodies are prevented from being damaged, and pipeline leakage is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying pipelines, in particular to a conveying rubber hose. Background Art

[0002] During the weighing, metering and conveying process of cigarette flavors, due to the concentrated effect of internal fluid pressure, after long-term use of the conveying hose, the inner wall of the pipe is easily corroded due to the long-term high pressure and chemical medium erosion, causing the pipe to rupture; at the same time, after a long period of high pressure and chemical medium erosion, the inner tube of the conveying hose degrades in physical properties and its bearing capacity declines, causing the hose to crack, swell and deform, or even rupture, which will directly lead to the suspension of production equipment and seriously affect the process quality of cigarette products and the continuous stability of the production system; in addition, after the conveying hose has been conveying raw materials for a long time, its inner surface is very prone to wear, which is not conducive to the transportation of raw materials, and the conveying hose has poor tolerance, which shortens the service life of the hose and cannot convey raw materials for a long time; when adjacent hoses are docked, the structure of the hose is often damaged, resulting in pipeline leakage, which directly leads to the suspension of production equipment.

[0003] Therefore, a conveying hose is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0004] The utility model aims to provide a conveying rubber hose, which can improve the corrosion resistance, wear resistance and pressure resistance of the conveying rubber hose, and increase the service life of the conveying rubber hose; at the same time, it improves the sealing performance of the conveying rubber hose connection and prevents pipeline leakage.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A conveying rubber hose comprises a pipe body, a first anti-corrosion layer, a first wear-resistant layer, a plurality of pressure-resistant layers, a second wear-resistant layer and a sealing assembly, wherein the first anti-corrosion layer is arranged on the inner periphery of the pipe body, the first wear-resistant layer is arranged on the inner periphery of the first anti-corrosion layer, the pressure-resistant layer is wrapped around the outer periphery of the pipe body, the second wear-resistant layer is arranged on the outer periphery of the pressure-resistant layer, and the sealing assembly is arranged at the end of the pipe body and is used to seal two adjacent pipe bodies.

[0007] As a preferred technical solution of the above-mentioned conveying rubber hose, the pressure-resistant layer includes a plurality of pressure-resistant belts, and two adjacent pressure-resistant belts are cross-wound around the outer circumference of the pipe body.

[0008] As a preferred technical solution of the above-mentioned conveying hose, the angle between the winding direction of the anti-compression belt and the axial direction of the pipe body is 50°-60°.

[0009] As a preferred technical solution of the above-mentioned conveying hose, the conveying hose further includes a plurality of tensile layers, and the tensile layers are wound around the outer circumference of the pressure-resistant layer.

[0010] As a preferred technical solution of the above-mentioned conveying hose, the anti-tension layer includes a plurality of anti-tension belts, and two adjacent anti-tension belts are cross-wound around the outer periphery of the anti-pressure layer.

[0011] As a preferred technical solution of the above-mentioned conveying hose, the angle between the winding direction of the anti-tension belt and the axial direction of the tube body is 5°-15°.

[0012] As a preferred technical solution of the above-mentioned conveying hose, the sealing assembly includes a sealing ring and a second anti-corrosion layer, one end of the sealing ring is connected to the pipe body, and the second anti-corrosion layer is arranged on the inner circumference of the sealing ring.

[0013] As a preferred technical solution of the above-mentioned conveying hose, the sealing assembly further includes a third wear-resistant layer, and the third wear-resistant layer is arranged on the outer periphery of the sealing ring.

[0014] As a preferred technical solution of the above-mentioned conveying hose, the third wear-resistant layer is made of nitrile rubber.

[0015] As a preferred technical solution of the above-mentioned conveying hose, the pressure-resistant layer and the pipe body are spaced apart to form a compensation space.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a conveying rubber hose. The conveying rubber hose comprises a pipe body, a first anti-corrosion layer, a first wear-resistant layer, a plurality of pressure-resistant layers, a second wear-resistant layer and a sealing assembly, wherein the first anti-corrosion layer is arranged on the inner periphery of the pipe body, the first wear-resistant layer is arranged on the inner periphery of the first anti-corrosion layer, the pressure-resistant layer is wound around the outer periphery of the pipe body, the second wear-resistant layer is arranged on the outer periphery of the pressure-resistant layer, and the sealing assembly is arranged on the end of the pipe body and is used to seal two adjacent pipe bodies. The conveying rubber hose is provided with the first anti-corrosion layer and the first wear-resistant layer on the inner periphery, and the pressure-resistant layer and the second wear-resistant layer are arranged on the outer periphery of the conveying rubber hose, which can improve the corrosion resistance, wear resistance and pressure resistance of the conveying rubber hose and improve the service life of the conveying rubber hose; the sealing assembly can improve the sealing performance of two adjacent pipe bodies, avoid the structure of the pipe body from being damaged, and prevent pipeline leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of the structure of the delivery hose provided by an embodiment of the utility model;

[0020] Figure 2 A structural cross-sectional view of a delivery hose provided by an embodiment of the utility model;

[0021] Figure 3 for Figure 2 A partial enlarged view of part A.

[0022] In the figure:

[0023] 1. Pipe body; 2. First anti-corrosion layer; 3. First wear-resistant layer; 4. Compression layer; 5. Second wear-resistant layer; 6. Sealing assembly; 61. Sealing ring; 62. Second anti-corrosion layer; 63. Third wear-resistant layer; 7. Compensation space; 8. Tensile layer. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0028] like Figures 1 to 3 As shown, the utility model provides a conveying hose, which includes a hose body 1, a first anti-corrosion layer 2, a first wear-resistant layer 3, a plurality of pressure-resistant layers 4, a second wear-resistant layer 5 and a sealing assembly 6.

[0029] Specifically, the first anti-corrosion layer 2 is arranged on the inner periphery of the pipe body 1, the first wear-resistant layer 3 is arranged on the inner periphery of the first anti-corrosion layer 2, the pressure-resistant layer 4 is wound around the outer periphery of the pipe body 1, the second wear-resistant layer 5 is arranged on the outer periphery of the pressure-resistant layer 4, and the sealing component 6 is arranged at the end of the pipe body 1 and is used to seal two adjacent pipe bodies 1. The conveying hose is provided with the first anti-corrosion layer 2 and the first wear-resistant layer 3 on the inner periphery, and a plurality of pressure-resistant layers 4 and second wear-resistant layers 5 are arranged on the outer periphery of the conveying hose, which can improve the corrosion resistance, wear resistance and pressure resistance of the conveying hose and improve the service life of the conveying hose; the sealing component 6 can improve the sealing performance of the two adjacent pipe bodies 1, avoid the structure of the pipe body 1 from being damaged, and prevent pipeline leakage.

[0030] Preferably, the pressure-resistant layer 4 includes a plurality of pressure-resistant belts, and two adjacent pressure-resistant belts are cross-wound around the outer circumference of the pipe body 1. Specifically, in order to improve the pressure resistance of the conveying hose, the conveying hose has a plurality of pressure-resistant layers 4, which can effectively improve the pressure resistance of the hose; each pressure-resistant layer 4 is provided with a plurality of pressure-resistant belts, and two adjacent pressure-resistant belts are cross-wound, so that the plurality of pressure-resistant belts can be regarded as a whole, thereby improving the pressure resistance of the pressure-resistant layer 4.

[0031] Preferably, the angle between the winding direction of the anti-compression belt and the axial direction of the pipe body 1 is 50°-60°. Specifically, the anti-compression belt is staggered with the axial direction of the pipe body 1, and the angle between the winding direction of the anti-compression belt and the axial direction of the pipe body 1 is 50°-60°, so that each anti-compression belt can connect the two ends of the pipe body 1, ensure the strength of the anti-compression belt, and avoid splicing the anti-compression belt to reduce the compression resistance of the anti-compression layer 4.

[0032] Optionally, the compression-resistant belt is composed of resin, polyester felt and glass fiber yarn, so that the compression-resistant belt has a certain elastic strength and high temperature resistance.

[0033] Preferably, the conveying hose is provided with a plurality of the tensile layers 8, and the tensile layers 8 are wound around the outer periphery of the anti-compression layer 4; the tensile layer 8 includes a plurality of tensile belts, and two adjacent tensile belts are cross-wound around the outer periphery of the anti-compression layer 4. Specifically, in order to improve the tensile resistance of the conveying hose, the conveying hose is provided with a tensile layer 8, and the tensile layer 8 is wound around the outer periphery of the anti-compression layer 4. At the same time, the conveying hose has a plurality of tensile layers 8, which can effectively improve the tensile resistance of the hose; each tensile layer 8 is provided with a plurality of tensile belts, and two adjacent tensile belts are cross-wound, so that the plurality of tensile belts can be regarded as a whole, thereby improving the tensile resistance of the tensile layer 8.

[0034] Preferably, the angle between the winding direction of the anti-tension belt and the axial direction of the pipe body 1 is 5°-15°. Specifically, the anti-tension belt and the pipe body 1 are axially staggered, and the angle between the winding direction of the anti-tension belt and the axial direction of the pipe body 1 is 5°-15°, so that each anti-tension belt can connect the two ends of the pipe body 1, ensure the strength of the anti-tension belt, and avoid splicing of the anti-tension belt to reduce the tensile capacity of the tensile layer 8.

[0035] Optionally, the tensile belt is composed of carbon fiber filaments, resin and zirconium phosphate powder, so that the compression belt has high temperature resistance.

[0036] Preferably, the pressure-resistant layer 4 is spaced apart from the pipe body 1 so as to form a compensation space 7 between the pressure-resistant layer 4 and the pipe body 1. Specifically, the compensation space 7 is provided so as to effectively disperse and balance the expansion pressure of the first anti-corrosion layer 2 caused by temperature changes under various working conditions, thereby eliminating the risk of damage caused by irregular expansion and preventing the rubber hose from cracking, expanding, deforming or even rupturing.

[0037] Preferably, the sealing assembly 6 includes a sealing ring 61 and a second anti-corrosion layer 62, one end of the sealing ring 61 is connected to the pipe body 1, and the second anti-corrosion layer 62 is arranged on the inner circumference of the sealing ring 61. Specifically, the sealing ring 61 is fixedly installed at the end of the pipe body 1, and can keep the first anti-corrosion layer 2, the first wear-resistant layer 3, the pipe body 1, the pressure-resistant layer 4 and the second wear-resistant layer 5 sealed, protect the composite structure of the rubber hose, and seal the compensation space 7 to ensure the pressure-bearing effect of the compensation space 7; the second anti-corrosion layer 62 can improve the corrosion resistance and heat preservation of the sealing ring 61, which is beneficial to the transportation of raw materials.

[0038] Preferably, in order to improve the wear resistance of the sealing ring 61, the sealing assembly 6 is provided with a third wear-resistant layer 63, and the third wear-resistant layer 63 is arranged on the outer periphery of the sealing ring 61, thereby improving the wear resistance and temperature resistance of the hose, and is suitable for high-pressure and high-speed transportation occasions.

[0039] Optionally, the third wear-resistant layer 63 is made of nitrile rubber, which has high wear resistance and high temperature resistance.

[0040] Optionally, the first anti-corrosion layer 2 is a polymer silicone anti-corrosion material, the main component of which is silicon dioxide, forming a unique three-dimensional network structure, and has extraordinary chemical stability and high-temperature oxidation resistance ≥1000°C. The strong polar oxide groups in the first anti-corrosion layer 2 give it excellent hydrophilicity and high-efficiency hydrolysis activity, so it can resist acid and alkali corrosion, and at the same time has the advantages of being non-toxic, environmentally friendly, and resistant to high and low temperatures, which greatly improves the safety and durability of the conveying hose.

[0041] Optionally, the second wear-resistant layer 5 is made of chloroprene rubber. Using chloroprene rubber as the outer surface layer of the conveying hose has good wear resistance and weather resistance, so that the conveying hose can resist the influence of the external environment, ensure the stability and durability of the conveying hose performance, extend the service life of the conveying hose, and can convey raw materials for a long time.

[0042] Optionally, in order to improve the impact resistance and wear resistance of the first wear-resistant layer 3 and greatly extend the service life of the conveying hose, the first wear-resistant layer 3 includes the following components: 18-20 parts of ultra-high molecular weight polyethylene, 2-4 parts of silicon carbide, 3-5 parts of nano zirconium oxide, 0.2-0.6 parts of toughening agent, 2-3 parts of maleic rosin glycol acrylate, and 0.02-0.05 parts of dibutyl tin oxide, wherein the particle size of silicon carbide is 40-65μm, the particle size of nano zirconium oxide is 20-50nm, and the nano zirconium oxide is tetragonal zirconium oxide. Ultra-high molecular weight polyethylene is used as the inner layer material of the conveying hose, which has good wear resistance and impact resistance. The inner surface of the conveying hose is smooth and has a small friction coefficient, which is conducive to the transportation of raw materials and improves transportation efficiency. Silicon carbide, nano zirconium oxide and other high hardness and wear-resistant materials are added to blend with polyethylene to further improve the friction resistance of the inner layer of the conveying hose. Maleic rosin glycol acrylate and dibutyl tin oxide are added to further modify polyethylene, so that unsaturated bonds and functional groups such as hydroxyl groups are introduced into the molecular chain of polyethylene, which improves the compatibility and adhesion of polyethylene with other raw materials, and further improves the wear resistance of the conveying hose. Toughening agents are added to ensure that the conveying hose can withstand impact without breaking, and has high impact resistance, which fundamentally enhances the stability and reliability of the entire spice weighing and conveying system.

[0043] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A conveying hose, characterized in that: The invention comprises a pipe body (1), a first anti-corrosion layer (2), a first wear-resistant layer (3), a plurality of pressure-resistant layers (4), a second wear-resistant layer (5) and a sealing component (6), wherein the first anti-corrosion layer (2) is arranged on the inner periphery of the pipe body (1), the first wear-resistant layer (3) is arranged on the inner periphery of the first anti-corrosion layer (2), the pressure-resistant layer (4) is wound around the outer periphery of the pipe body (1), the second wear-resistant layer (5) is arranged on the outer periphery of the pressure-resistant layer (4), and the sealing component (6) is arranged at the end of the pipe body (1) and is used to seal two adjacent pipe bodies (1).

2. A conveying hose according to claim 1, characterized in that: The pressure-resistant layer (4) comprises a plurality of pressure-resistant belts, and two adjacent pressure-resistant belts are cross-wound around the outer circumference of the pipe body (1).

3. A conveying hose according to claim 2, characterized in that: The angle between the winding direction of the compression-resistant belt and the axial direction of the pipe body (1) is 50°-60°.

4. A conveying hose according to claim 2, characterized in that: The conveying hose further comprises a plurality of tensile layers (8), wherein the tensile layers (8) are wound around the outer circumference of the pressure-resistant layer (4).

5. A conveying hose according to claim 4, characterized in that: The anti-tension layer (8) comprises a plurality of anti-tension belts, and two adjacent anti-tension belts are cross-wound around the outer periphery of the anti-compression layer (4).

6. A conveying hose according to claim 5, characterized in that: The angle between the winding direction of the anti-tensile tape and the axial direction of the pipe body (1) is 5°-15°.

7. A conveying hose according to claim 1, characterized in that: The sealing assembly (6) comprises a sealing ring (61) and a second anti-corrosion layer (62); one end of the sealing ring (61) is connected to the pipe body (1); and the second anti-corrosion layer (62) is arranged on the inner circumference of the sealing ring (61).

8. A conveying hose according to claim 7, characterized in that: The sealing assembly (6) further comprises a third wear-resistant layer (63), wherein the third wear-resistant layer (63) is arranged on the outer periphery of the sealing ring (61).

9. A conveying hose according to claim 8, characterized in that: The third wear-resistant layer (63) is made of nitrile rubber.

10. A conveying hose according to any one of claims 1 to 9, characterized in that: The pressure-resistant layer (4) and the pipe body (1) are spaced apart to form a compensation space (7).

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