Novel oxygen-barrier aluminum alloy plastic-lined composite pipe

Abstract

The utility model relates to the technical field of composite pipes, and provides a novel oxygen-barrier aluminum alloy plastic-lined composite pipe which comprises a pipe body, the pipe body comprises an outer pipe layer and an inner pipe layer, the inner pipe layer is located on the inner side of the outer pipe layer, a first external thread is fixedly arranged on the outer wall of one end of the pipe body, and a first threaded cylinder is arranged on the outer wall of one end of the pipe body in a threaded connection mode. A first connecting pipe is fixedly arranged at one end of the first threaded cylinder, a clamping block is fixedly arranged on the outer wall of the first connecting pipe, a second external thread is fixedly arranged on the outer wall of the other end of the pipe body, a second threaded cylinder is arranged on the outer wall of the other end of the pipe body in a threaded connection mode, and a second connecting pipe is fixedly arranged at one end of the second threaded cylinder; the composite pipe connecting device can be used independently, a plurality of composite pipes can be used in a combined mode, the composite pipes can be connected without other tools, connection is stable, operation is easy and convenient, practicability is good, installation time can be saved, and the pipeline laying efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite pipes, in particular to a novel oxygen-barrier aluminum alloy lined plastic composite pipe. Background Art

[0002] Plastic-lined pipes are made of ordinary steel pipes or aluminum alloys as the matrix, with an inner lining of thermoplastic engineering plastics with excellent chemical stability. They are formed by cold-drawn compounding or rotational molding. They have both the mechanical properties of metal pipes and the corrosion resistance, slow scaling, and low microbial growth of engineering plastics. They are ideal pipes for transporting acids, alkalis, salts, corrosive gases, liquids and other media; engineering plastics have excellent properties such as wear resistance, impact resistance, acid and alkali corrosion resistance, and light resistance; engineering plastics are compounded with aluminum alloy materials to form aluminum-plastic composite pipes. This type of pipe contains an aluminum layer, which can increase the internal pressure resistance, block oxygen, CO2, etc. to avoid the threat of rust to water pipeline equipment, has good thermal conductivity to reduce hot spot concentration, is anti-static and has good shielding properties and has a certain flame retardant effect, so it is easily accepted by the public.

[0003] In the prior art, the structure of the aluminum alloy lined plastic composite pipe is relatively simple, and the installation and connection between multiple aluminum alloy lined plastic composite pipes are troublesome and require the use of other tools for operation. When laying the pipeline, workers need to carry a variety of tools as backup, which adds unnecessary trouble.

[0004] Therefore, a new type of oxygen-barrier aluminum alloy lined plastic composite pipe is needed, which is simple and convenient to connect and fix between pipes, easy to disassemble and assemble, and highly efficient. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a novel oxygen-barrier aluminum alloy lined plastic composite pipe, which has the characteristics of simple disassembly and assembly, stable structure and convenient use.

[0006] In order to achieve the above purpose, the utility model proposes the following specific solutions:

[0007] A novel oxygen-barrier aluminum alloy lined plastic composite pipe comprises a pipe body, the pipe body comprises an outer pipe layer and an inner pipe layer, the inner pipe layer is located on the inner side of the outer pipe layer, the outer wall of one end of the pipe body is fixedly provided with a first external thread, the outer wall of one end of the pipe body is threadedly connected with a first threaded barrel, one end of the first threaded barrel is fixedly provided with a first connecting pipe, the first connecting pipe penetrates the inner side of the first threaded barrel, the outer wall of the first connecting pipe is fixedly provided with a clamping block, the outer wall of the other end of the pipe body is fixedly provided with a second external thread, the outer wall of the other end of the pipe body is threadedly connected with a second threaded barrel, one end of the second threaded barrel is fixedly provided with a second connecting pipe, the second connecting pipe penetrates the inner side of the second threaded barrel, the outer wall of the second connecting pipe is provided with a slot, the outer wall of the second connecting pipe is fixedly provided with a fixing plate, the fixing plate is located on one side of the slot, a rotating hole is provided in the middle of one side wall of the fixing plate, a rotating screw is movably inserted in the inner side of the rotating hole, a movable plate is threadedly connected to the outer side of the rotating screw, a through hole is provided on the edge of one side wall of the movable plate, and a buckle is movably inserted in the inner side of the through hole.

[0008] As an optimal technical solution for a novel oxygen-barrier aluminum alloy lined plastic composite pipe of the utility model, a rotating shaft is fixedly provided on the inner wall of one end of the buckle, and the rotating shaft is movably inserted into the inner side of the through hole.

[0009] As a preferred technical solution for a novel oxygen-barrier aluminum alloy lined plastic composite pipe of the utility model, a threaded hole is provided in the middle of the side end surface of the movable plate, and the rotating screw is threadedly connected to the inner side of the threaded hole.

[0010] As an optimal technical solution for a new type of oxygen-barrier aluminum alloy lined plastic composite pipe of the utility model, a rotating groove is provided through-connected at one end of the rotating hole, a rotating rod is fixedly provided at one end of the rotating screw, the rotating rod is movably inserted into the inner side of the rotating hole, a limiting plate is fixedly provided at one end of the rotating rod, and the limiting plate is movably sleeved on the inner side of the rotating groove.

[0011] As an optimal technical solution for a new type of oxygen-barrier aluminum alloy lined plastic composite pipe of the utility model, a sliding groove is provided on the outer wall of the second threaded tube, the sliding groove is located on one side of the fixed plate, and a sliding block is fixedly provided in the middle of the bottom surface of the movable plate, and the sliding block is movably inserted in the inner side of the sliding groove.

[0012] As an optimal technical solution for a novel oxygen-barrier aluminum alloy lined plastic composite pipe of the utility model, the outer pipe layer is made of aluminum alloy, and the inner pipe layer is made of polyvinyl chloride.

[0013] As an optimal technical solution for a new type of oxygen-barrier aluminum alloy lined plastic composite pipe of the utility model, a first sealing ring is fixedly provided at one end of the pipe body, and the first sealing ring is tightly fitted with the side wall of the first threaded barrel; a second sealing ring is fixedly provided at the other end of the pipe body, and the second sealing ring is tightly fitted with the side wall of the second threaded barrel; a third sealing ring is fixedly provided at one end of the first connecting pipe.

[0014] As an optimal technical solution for a novel oxygen-barrier aluminum alloy lined plastic composite pipe of the utility model, the first sealing ring, the second sealing ring and the third sealing ring are all made of flexible materials.

[0015] Compared with the existing technology, the utility model has the following beneficial effects:

[0016] The utility model is convenient for connecting and disassembling multiple composite pipes. Two composite pipes of the present invention are prepared, and the first connecting pipe at one end of composite pipe one is inserted into the inner side of the second connecting pipe at one end of composite pipe two, and the clamping block is inserted into the inner side of the slot. Then, the clamping buckle is rotated to engage with the outer side of the clamping block, and the rotating screw is turned to clamp the clamping buckle and the clamping block, so that the connection and fixation are completed. When disassembling, it is only necessary to turn the rotating screw in the opposite direction to loosen the engagement between the clamping buckle and the clamping block, and then disassembly can be carried out. The present solution is very convenient for connection, fixation and disassembly, which is beneficial to improving the efficiency of pipeline laying and also convenient for the maintenance and replacement of pipelines.

[0017] The tube body of the utility model is connected to the first threaded tube and the second threaded tube by threads. The first threaded tube and the second threaded tube can be separated from the tube body. When there is no need to use multiple composite tubes in combination, the first threaded tube and the second threaded tube can be removed and the tube body can be used alone, which improves practicality and can meet different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to better describe the technical solution of the utility model in detail, the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a three-dimensional diagram of the overall structure provided by the utility model;

[0020] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0021] Figure 3 For this utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0022] Figure 4 For this utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0023] Figure 5 For this utility model Figure 2 Enlarged schematic diagram of point C in the middle.

[0024] In the figure: 1. tube body; 11. outer tube layer; 12. inner tube layer; 13. first sealing ring; 14. first external thread; 15. second sealing ring; 16. second external thread; 2. first threaded barrel; 21. first connecting tube; 211. clamping block; 212. third sealing ring; 3. second threaded barrel; 31. second connecting tube; 311. slot; 312. fixing plate; 313. rotating hole; 314. rotating groove; 32. sliding groove; 33. rotating screw; 331. rotating rod; 332. limiting plate; 34. moving plate; 341. threaded hole; 342. sliding block; 343. through hole; 35. buckle; 351. rotating shaft. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0026] See also Figure 1-5 As shown, the utility model provides the following technical solutions: a new type of oxygen-barrier aluminum alloy lined plastic composite pipe, including a pipe body 1, the pipe body 1 includes an outer pipe layer 11 and an inner pipe layer 12, the inner pipe layer 12 is located on the inner side of the outer pipe layer 11, the outer pipe layer 11 is made of aluminum alloy, and the inner pipe layer 12 is made of polyvinyl chloride. The nested arrangement of the outer pipe layer 11 and the inner pipe layer 12 of this solution ensures the strength of the composite pipe, is more corrosion-resistant, and has a longer service life.

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, specifically, a first external thread 14 is fixedly provided on the outer wall of one end of the tube body 1 for connection with the first threaded barrel 2, a first threaded barrel 2 is threadedly connected to the outer wall of one end of the tube body 1 for connecting and fixing a first connecting pipe 21, a first connecting pipe 21 is fixedly provided on one end of the first threaded barrel 2 for extended use of multiple composite pipes, the first connecting pipe 21 is communicated with the inner side of the first threaded barrel 2, a second external thread 16 is fixedly provided on the outer wall of the other end of the tube body 1 for connecting a second threaded barrel 3, a second threaded barrel 3 is threadedly connected to the outer wall of the other end of the tube body 1 for connection of the second connecting pipe 31 with the tube body 1, a second connecting pipe 31 is fixedly provided on one end of the second threaded barrel 3 for extended connection of multiple composite pipes, the second connecting pipe 31 is communicated with the inner side of the second threaded barrel 3, the tube body 1 and the first threaded barrel 2 and the second threaded barrel 3 of this scheme can be disassembled, which is convenient for using the tube body 1 alone and has better practicality.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, specifically, a block 211 is fixedly provided on the outer wall of the first connecting tube 21 for fixing the first connecting tube 21 and the second connecting tube 31, a slot 311 is provided on the outer wall of the second connecting tube 31 for plugging the block 211, a fixing plate 312 is fixedly provided on the outer wall of the second connecting tube 31 for supporting the rotating screw 33, the fixing plate 312 is located on one side of the slot 311, a rotating hole 313 is provided in the middle of one side wall of the fixing plate 312 for facilitating the rotation of the rotating rod 331, and a rotating hole 313 is movably plugged in the inner side of the rotating hole 313 The movable screw 33 is used to drive the movable plate 34 to move. One end of the rotating hole 313 is connected with a rotating groove 314 for rotating the limit plate 332. One end of the rotating screw 33 is fixed with a rotating rod 331 for connecting and fixing the limit plate 332. The rotating rod 331 is movably inserted into the inner side of the rotating hole 313. One end of the rotating rod 331 is fixed with a limit plate 332 for preventing the rotating screw 33 from being separated from the fixed plate 312. The limit plate 332 is movably sleeved on the inner side of the rotating groove 314. The rotating screw A movable plate 34 is provided on the outer side of the movable plate 34 through a thread connection, which is used to drive the buckle 35 to move. A threaded hole 341 is provided in the middle of the side end surface of the movable plate 34, which is used to convert the rotation of the rotating screw 33 into the moving power of the movable plate 34. The rotating screw 33 is threadedly connected to the inner side of the threaded hole 341. A through hole 343 is provided on the edge of one side wall of the movable plate 34 for connecting the buckle 35. A buckle 35 is movably inserted in the inner side of the through hole 343 for clamping and fixing the first connecting tube 21. A rotating shaft 33 is fixed on the inner wall of one end of the buckle 35. 51, used to enable the buckle 35 to rotate, the rotating shaft 351 is movably inserted in the inner side of the through hole 343, the outer wall of the second threaded cylinder 3 is provided with a sliding groove 32, which is used for the sliding of the sliding block 342, and the sliding groove 32 is located on one side of the fixed plate 312. A sliding block 342 is fixedly provided in the middle of the bottom surface of the movable plate 34 to prevent the movable plate 34 from rotating, and the sliding block 342 is movably inserted in the inner side of the sliding groove 32. The connection and disassembly between multiple composite pipes in this scheme are convenient and fast, which is conducive to improving the efficiency of pipeline layout and reducing the burden on workers.

[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, specifically, a first sealing ring 13 is fixedly provided at one end of the tube body 1 to prevent liquid leakage, and the first sealing ring 13 fits tightly with the side wall of the first threaded tube 2. A second sealing ring 15 is fixedly provided at the other end of the tube body 1 to avoid liquid leakage, and the second sealing ring 15 fits tightly with the side wall of the second threaded tube 3. A third sealing ring 212 is fixedly provided at one end of the first connecting tube 21 to ensure the sealing of the connection between the composite tubes. The first sealing ring 13, the second sealing ring 15 and the third sealing ring 212 are all made of flexible materials. The first sealing ring 13, the second sealing ring 15 and the third sealing ring 212 arranged in this scheme can effectively ensure the sealing of the connection between the composite tubes, prevent liquid from leaking from the connection, and improve the user experience.

[0030] The working principle and use process of this utility model:

[0031] When in use, if two composite pipes need to be combined and connected for use, two composite pipes can be prepared, and the first connecting pipe 21 at one end of the composite pipe is inserted into the inner side of the second connecting pipe 31 at the other end of the composite pipe, and the clamping block 211 is inserted into the inner side of the slot 311, and then the buckle 35 is rotated, and the rotating shaft 351 is rotated inside the through hole 343 to engage the buckle 35 on the side wall of the clamping block 211, and then the rotating screw 33 is twisted to move the movable plate 34 to the side away from the fixed plate 312, so that the buckle 35 is clamped with the clamping block 211 to complete the connection. According to the above method, multiple composite pipes can be connected to achieve the required pipeline length. When using a single composite pipe, the first threaded tube 2 and the second threaded tube 3 can be unscrewed from both ends of the pipe body 1 respectively, so as to facilitate the use of a single composite pipe.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A novel oxygen-barrier aluminum alloy lined plastic composite pipe, comprising a pipe body (1), characterized in that: The tube body (1) comprises an outer tube layer (11) and an inner tube layer (12), the inner tube layer (12) being located on the inner side of the outer tube layer (11), a first external thread (14) being fixedly provided on the outer wall of one end of the tube body (1), a first threaded barrel (2) being threadedly connected to the outer wall of one end of the tube body (1), a first connecting tube (21) being fixedly provided on one end of the first threaded barrel (2), the first connecting tube (21) being connected to the inner side of the first threaded barrel (2), a clamping block (211) being fixedly provided on the outer wall of the first connecting tube (21), a second external thread (16) being fixedly provided on the outer wall of the other end of the tube body (1), a second threaded barrel (3) being threadedly connected to the outer wall of the other end of the tube body (1), the second threaded barrel (3) being threadedly connected to the outer wall of the second threaded barrel (3), and a first connecting tube (21) being fixedly provided on one end of the first threaded barrel (2). A second connecting tube (31) is fixedly provided at the end thereof, the second connecting tube (31) is connected with the inner side of the second threaded tube (3), a slot (311) is provided on the outer wall of the second connecting tube (31), a fixing plate (312) is fixedly provided on the outer wall of the second connecting tube (31), the fixing plate (312) is located on one side of the slot (311), a rotating hole (313) is provided in the middle of one side wall of the fixing plate (312), a rotating screw rod (33) is movably inserted in the inner side of the rotating hole (313), a movable plate (34) is threadedly connected on the outer side of the rotating screw rod (33), a through hole (343) is provided on the edge of one side wall of the movable plate (34), and a buckle (35) is movably inserted in the inner side of the through hole (343).

2. The novel oxygen-barrier aluminum alloy lined plastic composite pipe according to claim 1 is characterized in that: A rotating shaft (351) is fixedly provided on the inner wall of one end of the buckle (35), and the rotating shaft (351) is movably inserted into the inner side of the through hole (343).

3. The novel oxygen-barrier aluminum alloy lined plastic composite pipe according to claim 2 is characterized in that: A threaded hole (341) is provided in the middle of the side end surface of the movable plate (34), and the rotating screw rod (33) is threadedly connected to the inner side of the threaded hole (341).

4. The novel oxygen-barrier aluminum alloy lined plastic composite pipe according to claim 3 is characterized in that: A rotating groove (314) is provided through-connected at one end of the rotating hole (313); a rotating rod (331) is fixedly provided at one end of the rotating screw rod (33); the rotating rod (331) is movably inserted into the inner side of the rotating hole (313); a limiting plate (332) is fixedly provided at one end of the rotating rod (331); the limiting plate (332) is movably sleeved into the inner side of the rotating groove (314).

5. The novel oxygen-barrier aluminum alloy lined plastic composite pipe according to claim 4 is characterized in that: The outer wall of the second threaded cylinder (3) is provided with a sliding groove (32), and the sliding groove (32) is located on one side of the fixed plate (312). A sliding block (342) is fixedly provided in the middle of the bottom surface of the movable plate (34), and the sliding block (342) is movably inserted into the inner side of the sliding groove (32).

6. The novel oxygen-barrier aluminum alloy lined plastic composite pipe according to claim 5 is characterized in that: The outer tube layer (11) is made of aluminum alloy, and the inner tube layer (12) is made of polyvinyl chloride.

7. The novel oxygen-barrier aluminum alloy lined plastic composite pipe according to claim 6 is characterized in that: A first sealing ring (13) is fixedly provided at one end of the tube body (1), and the first sealing ring (13) is tightly fitted with the side wall of the first threaded tube (2); a second sealing ring (15) is fixedly provided at the other end of the tube body (1), and the second sealing ring (15) is tightly fitted with the side wall of the second threaded tube (3); and a third sealing ring (212) is fixedly provided at one end of the first connecting tube (21).

8. The novel oxygen-barrier aluminum alloy lined plastic composite pipe according to claim 7 is characterized in that: The first sealing ring (13), the second sealing ring (15) and the third sealing ring (212) are all made of flexible materials.

Images