An antibacterial flame-retardant aluminum-plastic composite pipe

Abstract

The present invention relates to the technical field of composite pipes, and discloses an antibacterial flame-retardant aluminum-plastic composite pipe, comprising an inner liner pipe, the outer surface of the inner liner pipe is equidistantly provided with inner aluminum alloy inserts, the outer side of the inner aluminum alloy inserts is covered with a first reinforcement layer, the outer side of the first reinforcement layer is equidistantly provided with outer aluminum alloy rods, the outer surface of the outer aluminum alloy rods is covered with a second reinforcement layer, the outer surface of the second reinforcement layer is press-fitted with a reinforcement layer, and the outer surface of the reinforcement layer is covered with an armored mesh layer. The antibacterial layer is provided to achieve an antibacterial effect, and the microorganisms in the surface water multiply and cause the water in the pipe to be unusable, the antistatic metal strip is provided to achieve an antistatic effect, and the rubber layer can protect the inner outer sleeve to prevent the outer sleeve from directly contacting the air and becoming brittle due to oxidation, thereby increasing the service life of the composite pipe, and the flame-retardant particles prevent the pipe from burning when it is exposed to fire, thereby preventing the fire from spreading.

Description

Technical Field

[0001] The invention relates to the technical field of composite pipes, in particular to an antibacterial and flame-retardant aluminum-plastic composite pipe. Background Art

[0002] Aluminum-plastic composite pipe is a pipe used for chemical building materials. It has the advantages of both the corrosion resistance of plastic pipes and the high strength of metal pipes. It is widely used in the fields of conveying various fluids such as hot and cold water, acids, alkalis, salts, and various gases such as fuel gas and oxygen. Aluminum-plastic composite pipes are the earliest water supply pipes to replace cast iron pipes. However, the existing aluminum-plastic composite pipes have safety accidents such as pipe rupture and water leakage due to insufficient adhesion between the plastic layer and the aluminum pipe. In addition, the surface of the existing aluminum-plastic composite pipes is easily brittle when placed in an external environment and exposed to the sun and rain, thereby affecting the service life of the aluminum-plastic composite pipes. Therefore, those skilled in the art provide an antibacterial and flame-retardant aluminum-plastic composite pipe to solve the problems raised in the above background technology. Summary of the invention

[0003] The purpose of the present invention is to provide an antibacterial and flame-retardant aluminum-plastic composite pipe to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An antibacterial and flame-retardant aluminum-plastic composite pipe comprises an inner lining pipe, the outer surface of the inner lining pipe is equidistantly provided with inner aluminum alloy fillets, the outer side of the inner aluminum alloy fillets is covered with a first reinforcement layer, the outer side of the first reinforcement layer is equidistantly provided with outer aluminum alloy rods, the outer surface of the outer aluminum alloy rods is covered with a second reinforcement layer, the outer surface of the second reinforcement layer is press-fitted with a reinforcement layer, and the outer surface of the reinforcement layer is covered with an armor mesh layer.

[0006] As a further solution of the present invention: the inner lining tube is laminated in a multi-layer structure, the number of layers of the inner lining tube is not less than ten, the thickness of each layer does not exceed 0.2 mm, and an antibacterial layer is tightly laminated on the innermost side of the inner lining tube.

[0007] As a further solution of the present invention: the inner aluminum alloy fillet and the outer aluminum alloy rod have the same size and specifications and are both made of aluminum alloy, and a first buffering and pressure-resistant cavity is opened inside the inner aluminum alloy fillet, and a second buffering and pressure-resistant cavity is opened inside the outer aluminum alloy rod.

[0008] As a further solution of the present invention: hot melt adhesive is filled between two adjacent inner aluminum alloy fillets and between two adjacent outer aluminum alloy rods.

[0009] As a further solution of the present invention: all the inner aluminum alloy inserts and all the outer aluminum alloy rods are respectively arranged in a spiral shape, and the spiral directions of the inner aluminum alloy inserts and the outer aluminum alloy rods are opposite.

[0010] As a further solution of the present invention: the first strengthening layer and the second strengthening layer are both made of asbestos mesh, and the number of layers of the fine mesh is not less than three, and the total thickness of the first strengthening layer and the second strengthening layer is not less than 2 mm.

[0011] As a further solution of the present invention: reinforcing ribs are equidistantly arranged inside the reinforcing layer, and the reinforcing ribs are made of metal wires with a diameter of 0.3 mm.

[0012] As a further solution of the present invention: the reinforcing ribs are galvanized wires, and preferably nickel-plated copper wires.

[0013] As a further solution of the present invention: the outer surface of the armor mesh layer is covered with an outer sleeve, and the interior of the outer sleeve is mixed with flame retardant particles.

[0014] As a further solution of the present invention: antistatic metal strips are equidistantly embedded on the outer surface of the outer sleeve, and the outer surface of the outer sleeve is coated with a rubber layer, and the thickness of the rubber layer is not less than 1 mm.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The antibacterial layer can have an antibacterial effect and prevent the water from not flowing for a long time inside the antibacterial layer, which will cause the microorganisms in the water to multiply and make the water unusable. The inner aluminum alloy inlay and the outer aluminum alloy rod can further enhance the strength of the aluminum-plastic composite pipe, and the inner aluminum alloy inlay and the outer aluminum alloy rod are respectively arranged in a single shape, which can improve the overall toughness of the composite pipe compared with the traditional aluminum-plastic pipe fittings. The inner aluminum alloy inlay and the outer aluminum alloy rod are respectively provided with a first buffer pressure-resistant cavity and a second buffer pressure-resistant cavity. When the inner wall of the antibacterial layer is subjected to water pressure, the composite pipe is compressed and expanded through the first buffer pressure-resistant cavity and the second buffer pressure-resistant cavity, and there is also more pressure inside. The remaining space can cope with expansion, protect the middle and outer layers of the composite pipe wall from pressure deformation, and improve the service life of the composite pipe; the inner aluminum alloy strips and the outer aluminum alloy rods are filled with hot melt adhesive, which can improve the bonding strength between the inner aluminum alloy strips and the outer aluminum alloy rods; an outer sleeve is provided, and a rubber layer is coated on the outer surface of the outer sleeve and an antistatic metal strip is embedded and installed; the antistatic metal strip can have an antistatic effect, and the rubber layer can protect the inner outer sleeve to prevent the outer sleeve from direct contact with the air, oxidation and becoming brittle, thereby improving the service life of the composite pipe; the flame retardant particles are used to prevent the composite pipe from burning in the event of a fire, thereby preventing the fire from spreading. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an antibacterial and flame-retardant aluminum-plastic composite pipe;

[0018] Figure 2 It is a structural schematic diagram of a cross section of an antibacterial flame-retardant aluminum-plastic composite pipe;

[0019] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of this application.

[0021] In the figure: 1. Inner lining tube; 2. Inner aluminum alloy insert; 3. First reinforcement layer; 4. Outer aluminum alloy rod; 5. Second reinforcement layer; 6. Reinforcement ribs; 7. Reinforcement layer; 8. Armor mesh layer; 9. Outer sleeve; 10. Antistatic metal strip; 11. Flame retardant particles; 12. First buffer anti-pressure cavity; 13. Hot melt adhesive; 14. Second buffer anti-pressure cavity; 15. Antibacterial layer; 16. Rubber layer. DETAILED DESCRIPTION

[0022] See also Figures 1 to 3In an embodiment of the present invention, an antibacterial and flame-retardant aluminum-plastic composite pipe includes an inner lining pipe 1, the outer surface of the inner lining pipe 1 is equidistantly provided with inner aluminum alloy fillets 2, the outer side of the inner aluminum alloy fillets 2 is covered with a first reinforcement layer 3, the outer side of the first reinforcement layer 3 is equidistantly provided with outer aluminum alloy rods 4, the outer surface of the outer aluminum alloy rods 4 is covered with a second reinforcement layer 5, the outer surface of the second reinforcement layer 5 is press-connected with a reinforcement layer 7, and the outer surface of the reinforcement layer 7 is covered with an armor mesh layer 8.

[0023] Preferably, the inner lining tube 1 is laminated in a multi-layer structure, the number of layers of the inner lining tube 1 is not less than ten, the thickness of each layer does not exceed 0.2 mm, and the innermost side of the inner lining tube 1 is tightly laminated with an antibacterial layer 15, which can achieve an antibacterial effect and prevent the microorganisms in the water from multiplying and rendering the water unusable when water does not flow inside the antibacterial layer 15 for a long time.

[0024] Preferably, the inner aluminum alloy insert 2 and the outer aluminum alloy rod 4 have the same size and specifications and are made of aluminum alloy, and a first buffer pressure-resistant cavity 12 is opened inside the inner aluminum alloy insert 2, and a second buffer pressure-resistant cavity 14 is opened inside the outer aluminum alloy rod 4. The first buffer pressure-resistant cavity 12 and the second buffer pressure-resistant cavity 14 ensure that when the composite pipe expands under pressure, there is excess space inside to cope with the expansion, thereby protecting the middle and outer layers of the composite pipe wall from pressure deformation and increasing the service life of the composite pipe.

[0025] Preferably, the space between two adjacent inner aluminum alloy fillets 2 and the space between two adjacent outer aluminum alloy rods 4 are filled with hot melt adhesive 13 , which can improve the bonding strength between the inner aluminum alloy fillets 2 and the outer aluminum alloy rods 4 .

[0026] Preferably, all the inner aluminum alloy inserts 2 and some of the outer aluminum alloy rods 4 are arranged in a spiral shape, and the spiral directions of the inner aluminum alloy inserts 2 and the outer aluminum alloy rods 4 are opposite, thereby improving the strength of the composite pipe wall from two directions.

[0027] Preferably, the first reinforcement layer 3 and the second reinforcement layer 5 are both made of asbestos mesh, and the number of layers of the fine mesh is not less than three, and the total thickness of the first reinforcement layer 3 and the second reinforcement layer 5 is not less than 2 mm. The strength of the first reinforcement layer 3 and the second reinforcement layer 5 is increased by thickening, thereby enhancing the strength of the inside of the composite pipe.

[0028] Preferably, reinforcing ribs 6 are equidistantly arranged inside the reinforcing layer 7, and the reinforcing ribs 6 are made of metal wire with a diameter of 0.3 mm. If the reinforcing ribs 6 are too thin, they will be easily broken when the composite pipe expands due to water pressure, causing the broken part of the reinforcing ribs 6 to scratch the pipe wall, resulting in water leakage.

[0029] Preferably, the reinforcing rib 6 is a galvanized wire, and preferably a nickel-plated copper wire, which has good toughness and corrosion resistance.

[0030] Preferably, the outer surface of the armored mesh layer 8 is covered with an outer sleeve 9, and the interior of the outer sleeve 9 is mixed with flame retardant particles 11. The flame retardant particles 11 can prevent the composite pipe from burning when it is exposed to fire, prevent the fire from spreading, and reduce losses.

[0031] Preferably, antistatic metal strips 10 are equidistantly embedded in the outer surface of the outer sleeve 9, and the outer surface of the outer sleeve 9 is coated with a rubber layer 16, and the thickness of the rubber layer 16 is not less than 1 mm. The rubber layer 16 can protect the inner outer sleeve 9, preventing the outer sleeve 9 from direct contact with the air, oxidation and becoming brittle, thereby increasing the service life of the composite tube.

[0032] The working principle of the present invention is: when producing the aluminum-plastic composite pipe, it is necessary to press the inner liner pipe 1 first, and press the antibacterial layer 15 inside the inner liner pipe 1, so that the antibacterial layer 15 can have an antibacterial effect, and avoid the water inside the antibacterial layer 15 not flowing for a long time, which will cause the microorganisms in the water to multiply and make the water unusable. The inner liner pipe 1 itself is formed by multi-layer pressing, which can enhance the strength of the inner liner pipe 1 itself, avoid excessive water pressure causing the pipe wall to rupture, water leakage and other safety accidents, and an inner aluminum alloy strip 2 is spirally arranged on the outer surface of the inner liner pipe 1, and an outer aluminum alloy rod 4 is spirally arranged on the surface of the first strengthening layer 3, which can The strength of the aluminum-plastic composite pipe is further enhanced, and the inner aluminum alloy insert 2 and the outer aluminum alloy rod 4 are respectively arranged in a single shape. Compared with the traditional aluminum-plastic pipe fittings, the overall toughness of the composite pipe can be improved, and the inner aluminum alloy insert 2 and the outer aluminum alloy rod 4 are respectively provided with a first buffer pressure-resistant cavity 12 and a second buffer pressure-resistant cavity 14. When the inner wall of the antibacterial layer 15 is subjected to water pressure, the antibacterial layer 15 and the inner liner 1 will inevitably expand under pressure. The inner aluminum alloy insert 2 and the outer aluminum alloy rod 4 can cover and reinforce the inner liner 1. The first buffer pressure-resistant cavity 12 and the second buffer pressure-resistant cavity 14 make the composite pipe When the pipe expands under pressure, there is also extra space inside to cope with the expansion, which protects the middle and outer layers of the composite pipe wall from deformation under pressure and improves the service life of the composite pipe. The inner aluminum alloy inserts 2 and the outer aluminum alloy rods 4 are filled with hot melt adhesive 13, which can improve the bonding strength between the inner aluminum alloy inserts 2 and the outer aluminum alloy rods 4. The surface of the outer aluminum alloy rods 4 is coated with a second strengthening layer 5, and then a strengthening layer 7 containing reinforcing ribs 6 is processed on the surface of the second strengthening layer 5. The reinforcing ribs 6 are nickel-plated copper wires, which have good toughness and corrosion resistance, and can strengthen the middle part of the composite pipe wall. An armored mesh layer 8 is provided on the surface of the strengthening layer 7, and the inner side of the armored mesh layer 8 is processed to make the composite pipe more tightly processed. The surface of the armored mesh layer 8 is processed with an outer sleeve 9 doped with flame retardant particles 11, and a rubber layer 16 and an antistatic metal strip 10 are respectively coated on the outer surface of the outer sleeve 9. The antistatic metal strip 10 can have an antistatic effect, and the rubber layer 16 can protect the inner outer sleeve 9 to prevent the outer sleeve 9 from directly contacting the air and becoming brittle due to oxidation, thereby increasing the service life of the composite pipe. The flame retardant particles 11 are used to prevent the composite pipe from burning when exposed to fire and to prevent the spread of fire.

[0033] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An antibacterial flame-retardant aluminum-plastic composite pipe, comprising an inner liner pipe (1), characterized in that: The outer surface of the inner lining tube (1) is equidistantly provided with inner aluminum alloy fillets (2), the outer side of the inner aluminum alloy fillets (2) is covered with a first reinforcement layer (3), the outer side of the first reinforcement layer (3) is equidistantly provided with outer aluminum alloy rods (4), the outer surface of the outer aluminum alloy rods (4) is covered with a second reinforcement layer (5), the outer surface of the second reinforcement layer (5) is press-fitted with a reinforcement layer (7), the outer surface of the reinforcement layer (7) is covered with an armored mesh layer (8). The inner lining tube (1) is press-fitted in a multi-layer structure, the number of layers of the inner lining tube (1) is not less than three, the thickness of each layer does not exceed 0.5 mm, and the innermost side of the inner lining tube (1) is tightly press-fitted with an antibacterial layer (15).

2. The antibacterial flame-retardant aluminum-plastic composite pipe according to claim 1, characterized in that: The inner aluminum alloy insert (2) and the outer aluminum alloy rod (4) have the same size and specifications and are both made of aluminum alloy. A first buffering and pressure-resistant cavity (12) is provided inside the inner aluminum alloy insert (2), and a second buffering and pressure-resistant cavity (14) is provided inside the outer aluminum alloy rod (4).

3. The antibacterial flame-retardant aluminum-plastic composite pipe according to claim 2, characterized in that: Hot melt adhesive (13) is filled between two adjacent inner aluminum alloy fillet strips (2) and between two adjacent outer aluminum alloy rods (4).

4. The antibacterial flame-retardant aluminum-plastic composite pipe according to claim 3, characterized in that: All of the inner aluminum alloy inserts (2) and all of the outer aluminum alloy rods (4) are arranged in a spiral shape, and the spiral directions of the inner aluminum alloy inserts (2) and the outer aluminum alloy rods (4) are opposite.

5. The antibacterial flame-retardant aluminum-plastic composite pipe according to claim 1, characterized in that: The first strengthening layer (3) and the second strengthening layer (5) are both made of asbestos mesh, and the number of layers of the fine mesh is not less than three. The total thickness of the first strengthening layer (3) and the second strengthening layer (5) is not less than 2 mm.

6. The antibacterial flame-retardant aluminum-plastic composite pipe according to claim 1, characterized in that: The reinforcing ribs (6) are arranged at equal intervals inside the reinforcing layer (7), and the reinforcing ribs (6) are made of metal wires with a diameter of 0.3 mm.

7. The antibacterial flame-retardant aluminum-plastic composite pipe according to claim 6, characterized in that: The reinforcing ribs (6) are galvanized wires, and are preferably nickel-plated copper wires.

8. The antibacterial flame-retardant aluminum-plastic composite pipe according to claim 1, characterized in that: The outer surface of the armor mesh layer (8) is covered with an outer sleeve (9), and the interior of the outer sleeve (9) is mixed with flame retardant particles (11).

9. The antibacterial flame-retardant aluminum-plastic composite pipe according to claim 8, characterized in that: The outer surface of the outer sleeve (9) is equidistantly embedded with antistatic metal strips (10), and the outer surface of the outer sleeve (9) is coated with a rubber layer (16), wherein the thickness of the rubber layer (16) is not less than 1 cm.

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