DN300 bamboo winding composite pipe

Abstract

The utility model discloses a DN300 bamboo winding composite pipe which comprises a lining layer and a composite reinforcing layer, a waterproof layer is arranged in the lining layer, and the composite reinforcing layer is arranged on the periphery of the lining layer. The composite reinforcing layer comprises a crossed bamboo skin curtain and a cross-shaped bamboo skin curtain, and the periphery of the crossed bamboo skin curtain is wrapped with the cross-shaped bamboo skin curtain. Compared with an existing bamboo winding composite pipe, the DN300 bamboo winding composite pipe has the advantages that the lining layer is made of non-woven fabric adhered with anticorrosive resin, the crossed bamboo skin curtain is made of obliquely crossed bamboo skins, epoxy resin is mixed in the manufacturing process, the structure is more compact, the crossed bamboo skin curtain is also made of epoxy resin, and the service life of the cross bamboo skin curtain is prolonged. The two layers of bamboo skin curtains can evenly disperse the borne pressure, the pressure resistance is improved, the first boss and the second boss are used for limiting the flange connecting structure, the reliability and stability of flange connection are guaranteed, waterproof glue in the glue storage cavity flows into the shallow groove through the glue injection hole, the waterproof glue at the two ends is bonded, and the two ends are tightly connected.

Description

Technical Field

[0001] The utility model relates to the technical field of composite pipes, and specifically relates to a DN300 bamboo-wound composite pipe. Background Technique

[0002] Bamboo materials are green and environmentally friendly renewable materials. Compared with the original ceramic composite pipes and steel pipes, the bamboo-based composite pipes made of bamboo materials have lower production energy consumption and are more environmentally friendly. In recent years, there have been more and more researches on bamboo-based composite pipes, and they have become more and more mature. They have been able to replace polyethylene pipes, polyvinyl chloride pipes, glass pipes, etc. in some fields. However, the strength of bamboo-based composite pipes is relatively low, and a bamboo-based composite pipe with higher strength is needed.

[0003] For the existing patent with the publication number of CN216430761U and the name of "bamboo-wound composite pipe", this utility model is about a bamboo-wound composite pipe, which is composed of an inner lining layer, a structural layer and an outer protective layer from inside to outside. The structural layer includes a bamboo-wound layer. The bamboo-wound layer is wound on the inner lining layer and is cured and adhered to the inner lining layer through an adhesive. Among them, the bamboo-wound layer includes multiple bamboo strips. Multiple connecting holes are arranged at equal intervals on the side surface of the bamboo strip. Multiple bamboo strips are arranged in parallel at equal intervals, and the multiple bamboo strips are connected through the connecting holes to form the bamboo-wound layer. The moisture content of the bamboo strip is 7%-13%. The bamboo strip is divided into bamboo strips along the growth direction of the original bamboo, and is obtained by cutting along the length direction of the bamboo strip after removing the inner epidermis and the outer epidermis of the bamboo strip; the outer protective layer is coated on the structural layer to play a protective role. Thus, the structural layer can be quickly assembled, and the large deviation of the distance between adjacent bamboo strips can be avoided during winding, ensuring that the structural layer has uniform strength, improving the strength stability, relatively increasing the bearing capacity of the bamboo-wound composite pipe, and improving its application reliability.

[0004] In the above device, multiple connecting holes are arranged at equal intervals on the side surface of the bamboo strip, multiple bamboo strips are arranged in parallel at equal intervals, and the multiple bamboo strips are connected through the connecting holes to form the bamboo-wound layer. The processing of the two winding layers is too complicated, and the pressure received cannot be evenly borne, which cannot well meet the use requirements of people. In view of the above situation, technical innovation is carried out on the basis of the existing bamboo-wound composite pipe. Content of the Utility Model

[0005] The purpose of the utility model is to provide a DN300 bamboo-wound composite pipe to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solutions: a DN bamboo-wound composite pipe, including an inner lining layer and a composite reinforcement layer. A waterproof layer is provided inside the inner lining layer, and the composite reinforcement layer is arranged on the periphery of the inner lining layer. The composite reinforcement layer includes a cross bamboo mat curtain and a cross-shaped bamboo mat curtain. The cross bamboo mat curtain is wrapped by the cross-shaped bamboo mat curtain. Epoxy resin is mixed in during the production of the cross bamboo mat curtain and the cross-shaped bamboo mat curtain to enhance the structural strength.

[0007] Further, an outer protective layer is wrapped around the periphery of the cross-shaped bamboo mat curtain, and the outer protective layer is bonded to the cross-shaped bamboo mat curtain. The outer protective layer protects the internal composite reinforcement layer from the direct influence of the external environment and improves the service life of the composite pipe.

[0008] Further, a connecting piece is arranged inside one end of the outer protective layer, and the connecting piece is bonded to the outer protective layer. The connecting piece is connected to the outer protective layer to tightly connect the end reinforcement layer to the end of the composite pipe.

[0009] Further, an end reinforcement layer is arranged on the right side of the connecting piece, and the end reinforcement layer is welded to the connecting piece. The end reinforcement layer enhances the strength of the connection at the end of the composite pipe.

[0010] Further, a boss one is arranged on the outer periphery of the middle part of the end reinforcement layer, and the boss one is welded to the end reinforcement layer. The boss one and the boss two are used for the limit of the flange connection structure to ensure the reliability and stability of the flange connection.

[0011] Further, a boss two is welded to the outer periphery of the right end of the end reinforcement layer, and a shallow groove is arranged on the right side surface of the boss two. Waterproof glue flows into the shallow groove to bond the two end connecting columns, avoiding leakage at the connection.

[0012] Further, a glue storage cavity is arranged on the left side inside the boss two, and the glue storage cavity is inlaid with the boss two. The glue storage cavity stores strong waterproof glue, which will flow out during connection.

[0013] Further, a glue injection hole is arranged on the right side inside the boss two, and the glue injection hole is inlaid with the boss two. The glue injection hole connects the shallow groove and the glue storage cavity to facilitate the bonding of the waterproof glue at the connection.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The inner lining layer is made of non-woven fabric adhered with anti-corrosion resin, forming a leak-proof and smooth inner surface. The cross bamboo strip curtain covers the inner lining layer and is made of obliquely crossed bamboo strips, and epoxy resin is mixed during the manufacturing process, making the structure more compact and having better compressive resistance. The cross-shaped bamboo strip curtain covers above the cross bamboo strip curtain and is also made by mixing epoxy resin. The two layers of bamboo strip curtains can evenly distribute the pressure received, improving the compressive resistance. The first boss and the second boss are used for the limit of the flange connection structure, ensuring the reliability and stability of the flange connection. When connecting through the flange, the waterproof glue in the glue storage cavity flows into the shallow groove through the glue injection hole, and the waterproof glue at the ends of the two bamboo-wound composite pipes is bonded to tightly connect the two ends;

[0015] 1. In the present utility model, the inner lining layer is made of non-woven fabric adhered with anti-corrosion resin, forming a leak-proof and smooth inner surface. The waterproof layer increases the leak-proof ability of the inner lining layer and protects the inner lining layer to prevent the inner lining layer from being gradually worn during the flow of the content. The cross bamboo strip curtain covers the inner lining layer and is made of obliquely crossed bamboo strips, and epoxy resin is mixed during the manufacturing process, making the structure more compact and having better compressive resistance. The cross-shaped bamboo strip curtain covers above the cross bamboo strip curtain and is also made by mixing epoxy resin. The two layers of bamboo strip curtains can evenly distribute the pressure received, improving the compressive resistance. The outer protective layer protects the internal composite reinforcement layer from the direct influence of the external environment, increasing the service life of the composite pipe;

[0016] 2. In the present utility model, the connecting piece is connected to the outer protective layer to tightly connect the end reinforcement layer to the end of the composite pipe. The end reinforcement layer enhances the strength of the connection at the end of the composite pipe. The first boss and the second boss are used for the limit of the flange connection structure, ensuring the reliability and stability of the flange connection. When connecting through the flange, the waterproof glue in the glue storage cavity flows into the shallow groove through the glue injection hole, and the waterproof glue at the ends of the two bamboo-wound composite pipes is bonded to tightly connect the two ends, effectively preventing leakage at the connection and causing unnecessary losses or pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional sectional structure schematic diagram of a DN300 bamboo-wound composite pipe of the present utility model;

[0018] Figure 2 is a front sectional structure schematic diagram of the end of a DN300 bamboo-wound composite pipe of the present utility model;

[0019] Figure 3 is a side view structure schematic diagram of the second boss of a DN300 bamboo-wound composite pipe of the present utility model.

[0020] In the figure: 1, inner lining layer; 2, waterproof layer; 3, composite reinforcement layer; 301, cross bamboo mat curtain; 302, cross-shaped bamboo mat curtain; 4, outer protective layer; 5, end reinforcement layer; 6, boss one; 7, boss two; 8, connecting piece; 9, glue storage cavity; 10, shallow groove; 11, glue injection hole. Specific implementation manner

[0021] As Figure 1 shown, a DN300 bamboo-wound composite pipe includes an inner lining layer 1 and a composite reinforcement layer 3. A waterproof layer 2 is arranged inside the inner lining layer 1, and the composite reinforcement layer 3 is arranged on the periphery of the inner lining layer 1; and the composite reinforcement layer 3 includes a cross bamboo mat curtain 301 and a cross-shaped bamboo mat curtain 302. The cross bamboo mat curtain 301 is wrapped by the cross-shaped bamboo mat curtain 302, and the cross-shaped bamboo mat curtain 302 is wrapped by the outer protective layer 4, and the outer protective layer 4 is bonded to the cross-shaped bamboo mat curtain 302. The inner lining layer 1 is made of non-woven fabric adhered with anti-corrosion resin to form an anti-seepage and smooth inner surface. The waterproof layer 2 increases the anti-seepage ability of the inner lining layer 1 and protects the inner lining layer 1 to prevent the inner lining layer 1 from being gradually worn during the flow of the content. The cross bamboo mat curtain 301 covers the inner lining layer 1 and is made of obliquely crossed bamboo strips, and epoxy resin is mixed during the manufacturing process to make the structure more compact and have better compressive resistance. The cross-shaped bamboo mat curtain 302 covers the cross bamboo mat curtain 301 and is also made by mixing epoxy resin. The two bamboo mat curtains can evenly distribute the pressure received and improve the compressive resistance. The outer protective layer 4 protects the internal composite reinforcement layer 3 from the direct influence of the external environment and improves the service life of the composite pipe.

[0022] As Figures 1-3 shown, a connecting piece 8 is arranged inside one end of the outer protective layer 4, and the connecting piece 8 is bonded to the outer protective layer 4. A end reinforcement layer 5 is arranged on the right side of the connecting piece 8, and the end reinforcement layer 5 is welded to the connecting piece 8. A boss one 6 is arranged on the periphery of the middle part of the end reinforcement layer 5, and the boss one 6 is welded to the end reinforcement layer 5. A boss two 7 is welded to the right end periphery of the end reinforcement layer 5, and a shallow groove 10 is arranged on the right side surface of the boss two 7. A glue storage cavity 9 is arranged on the left side inside the boss two 7, and the glue storage cavity 9 is inlaid with the boss two 7. A glue injection hole 11 is arranged on the right side inside the boss two 7, and the glue injection hole 11 is inlaid with the boss two 7. The connecting piece 8 is connected to the outer protective layer 4 to tightly connect the end reinforcement layer 5 to the end of the composite pipe. The end reinforcement layer 5 enhances the strength of the connection at the end of the composite pipe. The boss one 6 and the boss two 7 are used for the limit of the flange connection structure to ensure the reliability and stability of the flange connection. When connected by flange, the waterproof glue in the glue storage cavity 9 flows into the shallow groove 10 through the glue injection hole 11, and the waterproof glue at the ends of the two bamboo-wound composite pipes is bonded to tightly connect the two ends, which can effectively prevent leakage at the connection and cause unnecessary losses or pollution.

[0023] Working principle: When using this kind of DN300 bamboo-wound composite pipe, first of all, the inner lining layer 1 is made of non-woven fabric adhered with anti-corrosion resin, forming a leak-proof and smooth inner surface. The waterproof layer 2 enhances the leak-proof ability of the inner lining layer 1 and protects the inner lining layer 1 from being gradually worn out when the content flows through. The cross bamboo mat 301 covers the inner lining layer 1 and is made of obliquely crossed bamboo strips, and epoxy resin is mixed during the manufacturing process to make the structure more compact and have better compressive resistance. The cross-shaped bamboo mat 302 covers above the cross bamboo mat 301 and is also made by mixing epoxy resin. The two layers of bamboo mats can evenly distribute the pressure received, improving the compressive resistance. The outer protective layer 4 protects the internal composite reinforcement layer 3 from the direct impact of the external environment, increasing the service life of the composite pipe. The connector 8 is connected to the outer protective layer 4 to tightly connect the end reinforcement layer 5 to the end of the composite pipe. The end reinforcement layer 5 enhances the strength of the connection at the end of the composite pipe. The boss one 6 and the boss two 7 are used for the limit of the flange connection structure to ensure the reliability and stability of the flange connection. When connecting through the flange, the waterproof glue in the glue storage cavity 9 flows into the shallow groove 10 through the glue injection hole 11. The waterproof glue at the ends of the two bamboo-wound composite pipes is bonded to tightly connect the two ends, which can effectively prevent leakage at the connection, causing unnecessary losses or pollution.

Claims

1. A DN300 bamboo-wound composite pipe, comprising an inner lining layer (1) and a composite reinforcement layer (3), characterized in that, A waterproof layer (2) is arranged inside the inner liner layer (1), and the composite reinforcement layer (3) is arranged on the periphery of the inner liner layer (1); and the composite reinforcement layer (3) includes a cross bamboo mat curtain (301) and a cross-shaped bamboo mat curtain (302), and the cross bamboo mat curtain (301) is wrapped by the cross-shaped bamboo mat curtain (302).

2. The DN300 bamboo-wound composite pipe according to claim 1, characterized in that, The outer periphery of the cross-shaped bamboo mat curtain (302) is wrapped by an outer protective layer (4), and the outer protective layer (4) is adhesively bonded to the cross-shaped bamboo mat curtain (302).

3. A DN300 bamboo-wound composite pipe according to claim 2, characterized in that, A connecting piece (8) is arranged inside one end of the outer protective layer (4), and the connecting piece (8) is adhesively bonded to the outer protective layer (4).

4. A DN300 bamboo-wound composite pipe according to claim 3, characterized in that, An end reinforcement layer (5) is arranged on the right side of the connecting piece (8), and the end reinforcement layer (5) is welded to the connecting piece (8).

5. A DN300 bamboo-wound composite pipe according to claim 4, characterized in that, A first boss (6) is arranged on the outer periphery of the middle part of the end reinforcement layer (5), and the first boss (6) is welded to the end reinforcement layer (5).

6. A DN300 bamboo-wound composite pipe according to claim 4, characterized in that, A second boss (7) is welded to the outer periphery of the right end of the end reinforcement layer (5), and a shallow groove (10) is arranged on the right side surface of the second boss (7).

7. A DN300 bamboo-wound composite pipe according to claim 6, characterized in that, A glue storage cavity (9) is arranged on the left side inside the second boss (7), and the glue storage cavity (9) is inlaid and connected to the second boss (7).

8. A DN300 bamboo-wound composite pipe according to claim 6, characterized in that, A glue injection hole (11) is arranged on the right side inside the second boss (7), and the glue injection hole (11) is inlaid and connected to the second boss (7).

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