CN217603557U

CN217603557U - High-strength corrosion-resistant aluminum-plastic composite pipe

Info

Publication number: CN217603557U
Application number: CN202221178323.6U
Authority: CN
Inventors: 蔡佳磊
Original assignee: Zhejiang Caisi Pipeline Technology Co ltd
Current assignee: Zhejiang Caisi Pipeline Technology Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-10-18
Anticipated expiration: 2032-05-13

Abstract

The utility model relates to the technical field of tubular product, a corrosion-resistant plastic-aluminum composite pipe of high strength is disclosed, the utility model discloses a two sections plastic-aluminum composite pipe, plastic-aluminum transition pipe, screw cap suit are on plastic-aluminum composite pipe, and plastic-aluminum transition pipe is including coaxial pipe and sealed core pipe, and sealed core pipe is fixed to be set up in coaxial pipe, coaxial pipe is coaxial with sealed core pipe, and with the both ends suit of coaxial pipe in the tip of plastic-aluminum composite pipe, the both ends cartridge of sealed core pipe is in plastic-aluminum composite pipe. The utility model discloses a bilayer aluminium foil cooperation screw thread oppression forms good sealed, is difficult for breeding the bacterium simultaneously to avoided the aluminium gap of butt joint department, also pack into with another aluminium-plastic composite pipe with the other end of axle pipe in with axle pipe and sealed core, then simultaneously with two screw cap screw in bearing sleeve's both ends, make screw cap and first external screw thread form threaded connection, force the pressfitting deformation opening part through oppression bearing sleeve and enhancement steel ring and take place to warp in order to reach inseparabler connection.

Description

High-strength corrosion-resistant aluminum-plastic composite pipe

Technical Field

The utility model belongs to the technical field of the tubular product technique and specifically relates to a corrosion-resistant plastic-aluminum composite pipe of high strength.

Background

The other mode is that a connecting pipe is adopted to form sealing through the pressing of a sealing rubber gasket, if the aluminum plastic composite pipe is provided with a metal interlayer, the butt joint seam of the aluminum plastic composite pipe, which forms the metal interlayer at the butt joint port, is not beneficial to corrosion prevention and reverse osmosis if the aluminum plastic composite pipe adopts hot melt butt joint, the quality of the interfaces is uneven by adopting the rubber sealing mode of the connecting pipe, and medium bacteria are easily attached to the rubber sealing ring to form a pollution source, and the strength of the interface is low.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to overcome the problems, a high-strength corrosion-resistant aluminum-plastic composite pipe is provided, which solves the problems.

The utility model provides a its technical problem take following technical scheme to realize:

the utility model provides a corrosion-resistant plastic-aluminum composite pipe of high strength, includes two sections plastic-aluminum composite pipe, plastic-aluminum transition pipe, screw cap suit in on the plastic-aluminum composite pipe, the plastic-aluminum transition pipe is including coaxial pipe and sealed core pipe, sealed core pipe fixed set up in the coaxial pipe, coaxial pipe with sealed core pipe is coaxial, coaxial pipe's both ends suit in the tip of plastic-aluminum composite pipe, sealed core pipe's both ends cartridge in the plastic-aluminum composite pipe, screw cap threaded connection is fixed in the both ends of coaxial pipe.

Preferably, the sealed core tube comprises a galvanized aluminum tube, a first aluminum foil coating layer and a second aluminum foil coating layer, wherein second external threads are arranged at two ends of the galvanized aluminum tube, the second aluminum foil coating layer and the first aluminum foil coating layer are sequentially sleeved at two ends of the galvanized aluminum tube, the second external threads are in threaded connection with the inner wall of the aluminum-plastic composite tube, and the second aluminum foil coating layer and the first aluminum foil coating layer are pressed between the galvanized aluminum tube and the aluminum-plastic composite tube.

Preferably, the coaxial pipe comprises a bearing sleeve, two ends of the bearing sleeve are provided with contraction cavities which are open outwards, the sealed core pipe is fixed in the middle of the bearing sleeve, and the diameter of a port of one end, close to the sealed core pipe, of each contraction cavity is smaller than that of a port of the other end of the sealed core pipe.

Preferably, a reinforcing steel ring is fixedly arranged in the bearing sleeve, and the threaded cover is pressed outside the reinforcing steel ring.

Preferably, the second external thread is a fifty-five degree tube seal thread, and the coaxial tube has a length at least five times the twist length of the second external thread.

Preferably, the left end and the right end of the bearing sleeve are symmetrically provided with pressing deformation openings in a front-back manner, and the threaded cover is pressed on the end part of the bearing sleeve and forces the pressing deformation openings to deform.

The utility model has the advantages that: the double-layer aluminum foil is matched with the thread to press to form good sealing, bacteria are not easy to breed, aluminum gaps at the butt joint are avoided, the other aluminum-plastic composite pipe is also arranged in the coaxial pipe and the sealing core pipe at the other end of the coaxial pipe, then the two thread covers are screwed into the two ends of the bearing sleeve pipe simultaneously, so that the thread covers are in threaded connection with the first external thread, the bearing sleeve pipe and the reinforcing steel ring are pressed to force the pressing deformation opening to deform to achieve tighter connection, and the length of the bearing sleeve pipe and the reinforcing steel ring is larger than the screwing length of the second external thread, so that the deformation amount of the second external thread when the joint is bent can be effectively reduced, the stable connection of the second external thread is guaranteed, and the strength of the pipe body and the corrosion resistance and the reverse osmosis performance of the joint are effectively improved.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples.

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the partial section structure of the present invention;

fig. 3 is an enlarged structural view of the sealed core tube of fig. 2.

The scores in the figures are as follows: 10. an aluminum-plastic composite pipe; 11. a galvanized aluminum tube; 12. a first aluminum foil coating layer; 13. a second aluminum foil coating layer; 14. a second external thread; 15. sealing the core tube; 16. a load bearing sleeve; 17. reinforcing the steel ring; 18. a contracting cavity; 19. a first external thread; 20. a threaded cap; 21. an aluminum-plastic transition pipe; 22. a coaxial tube; 23. and pressing the deformed opening.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

The embodiments of the present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1-3, a corrosion-resistant plastic-aluminum composite pipe of high strength, including two sections plastic-aluminum composite pipe 10, plastic-aluminum transition pipe 21, screw cap 20 suit in on the plastic-aluminum composite pipe 10, plastic-aluminum transition pipe 21 includes with axle pipe 22 and sealed core pipe 15, sealed core pipe 15 fixed set up in with in the axle pipe 22, with axle pipe 22 with sealed core pipe 15 is coaxial, with axle pipe 22 both ends suit in the tip of plastic-aluminum composite pipe 10, sealed core pipe 15's both ends cartridge in the plastic-aluminum composite pipe 10, screw cap 20 threaded connection is fixed in with the both ends of axle pipe 22.

Preferably, the sealed core tube 15 comprises a galvanized aluminum tube 11, a first aluminum foil coating layer 12 and a second aluminum foil coating layer 13, wherein second external threads 14 are arranged at two ends of the galvanized aluminum tube 11, the second aluminum foil coating layer 13 and the first aluminum foil coating layer 12 are sequentially sleeved at two ends of the galvanized aluminum tube 11, the second external threads 14 are in threaded connection with the inner wall of the aluminum-plastic composite tube 10, the second aluminum foil coating layer 13 and the first aluminum foil coating layer 12 are in press fit with the galvanized aluminum tube 11 and the aluminum-plastic composite tube 10, good sealing is formed through double-layer aluminum foil matching thread pressing, bacteria are not easy to breed, and aluminum gaps at the butt joint are avoided.

Preferably, the coaxial tube 22 includes a bearing sleeve 16, two ends of the bearing sleeve 16 are provided with shrinkage cavities 18 which are open to the outside, the sealed core tube 15 is fixed in the middle of the bearing sleeve 16, and the diameter of a port of one end of the shrinkage cavity 18 close to the sealed core tube 15 is smaller than that of the other end.

Preferably, a reinforcing steel ring 17 is fixedly arranged in the bearing sleeve 16, and the threaded cap 20 is press-fit on the outside of the reinforcing steel ring 17.

Preferably, the second external thread 14 is a fifty-five degree tube seal thread and the coaxial tube 22 has a length at least five times the twist length of the second external thread 14.

Preferably, the left end and the right end of the bearing sleeve 16 are symmetrically provided with pressing deformation openings 23 in a front-back manner, the threaded cap 20 is pressed on the end of the bearing sleeve 16 and forces the pressing deformation openings 23 to deform, the threaded cap 20 presses the end of the bearing sleeve 16 to make the pressing deformation openings 23 contract and deform and make the two ends of the bearing sleeve 16 tightly pressed on the aluminum-plastic composite pipe 10, so that a good coaxial connection effect is formed, and the strength of the connection part is effectively enhanced.

In specific implementation, a threaded cap 20 is sleeved on each of the two aluminum-plastic composite pipes 10, then a section of the aluminum-plastic composite pipe 10 is inserted into the bearing sleeve 16, one end of the galvanized aluminum pipe 11 is screwed into the aluminum-plastic composite pipe 10, a good seal is formed by pressing a double-layer aluminum foil with matching threads, bacteria are not easily grown, and an aluminum gap at a butt joint is avoided, another aluminum-plastic composite pipe 10 is also arranged into the coaxial pipe 22 and the sealed core pipe 15 at the other end of the coaxial pipe 22, then the two threaded caps 20 are screwed into two ends of the bearing sleeve 16 at the same time, so that the threaded cap 20 and the first external thread 19 form a threaded connection, the pressing deformation opening 23 is forced to deform by pressing the bearing sleeve 16 and the reinforcing steel ring 17 to achieve a tighter connection, and the length of the bearing sleeve 16 and the reinforcing steel ring 17 is greater than the screwing length of the second external thread 14, so that the deformation amount of the second external thread 14 when the connection is bent can be effectively reduced, the stability of the second external thread 14 is ensured, and the corrosion resistance of the connection is improved, and the reverse osmosis is effectively improved.

It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the invention is not limited to the embodiments described in the detailed description, and that other embodiments derived from the technical solutions of the present invention by those skilled in the art also belong to the scope of the present invention.

Claims

1. The utility model provides a corrosion-resistant plastic-aluminum composite pipe of high strength, includes two sections plastic-aluminum composite pipe (10), its characterized in that: still include plastic-aluminum transition pipe (21), screw cap (20) suit in on the compound pipe of plastic-aluminum (10), plastic-aluminum transition pipe (21) are including with axle pipe (22) and sealed core pipe (15), sealed core pipe (15) fixed set up in with in the axle pipe (22), with axle pipe (22) with sealed core pipe (15) are coaxial, with the both ends suit of pipe (22) in the tip of compound pipe of plastic-aluminum (10), the both ends cartridge of sealed core pipe (15) in compound pipe of plastic-aluminum (10), screw cap (20) threaded connection is fixed in the both ends of with axle pipe (22).

2. The high-strength corrosion-resistant aluminum-plastic composite pipe according to claim 1, wherein: the sealed core tube (15) comprises a galvanized aluminum tube (11), a first aluminum foil coating layer (12) and a second aluminum foil coating layer (13), wherein second external threads (14) are arranged at two ends of the galvanized aluminum tube (11), the second aluminum foil coating layer (13) and the first aluminum foil coating layer (12) are sequentially sleeved at two ends of the galvanized aluminum tube (11), the second external threads (14) are in threaded connection with the inner wall of the aluminum-plastic composite tube (10), and the second aluminum foil coating layer (13) and the first aluminum foil coating layer (12) are pressed between the galvanized aluminum tube (11) and the aluminum-plastic composite tube (10).

3. The high-strength corrosion-resistant aluminum-plastic composite pipe according to claim 2, wherein: the coaxial pipe (22) comprises a bearing sleeve (16), two ends of the bearing sleeve (16) are provided with contraction cavities (18) which are open outwards, the sealed core pipe (15) is fixed in the middle of the bearing sleeve (16), and the diameter of a port of one end, close to the sealed core pipe (15), of each contraction cavity (18) is smaller than that of the other end of the same contraction cavity.

4. The high-strength corrosion-resistant aluminum-plastic composite pipe according to claim 3, wherein: the bearing sleeve (16) is internally and fixedly provided with a reinforcing steel ring (17), and the threaded cover (20) is pressed outside the reinforcing steel ring (17).

5. The high-strength corrosion-resistant aluminum-plastic composite pipe according to claim 4, wherein: the second external thread (14) is a fifty-five degree tube seal thread, and the length of the coaxial tube (22) is at least five times the twist length of the second external thread (14).

6. The high-strength corrosion-resistant aluminum-plastic composite pipe according to claim 5, wherein: the left end and the right end of the bearing sleeve (16) are symmetrically provided with pressing deformation openings (23) in a front-back mode, and the threaded cover (20) is pressed on the end portion of the bearing sleeve (16) and forces the pressing deformation openings (23) to deform.