Crimping pipe fitting structure of aluminum-plastic pipe

Abstract

The utility model relates to the technical field of aluminum-plastic pipe crimping pipe fitting structures, and discloses an aluminum-plastic pipe crimping pipe fitting structure, which comprises two aluminum-plastic connecting pipes to be connected, two threaded locking pipe sleeves, two meshed sealing pipe sleeves and a synchronous pipe sleeve integrated with the meshed sealing pipe sleeves, the double-end connecting structure further comprises a double-end connecting pipe sleeve and a sealing ring, the meshed sealing pipe sleeve is fixed to the end of the aluminum-plastic connecting pipe and forms sealing with the aluminum-plastic connecting pipe, and the double-end connecting pipe sleeve is connected with the two synchronous pipe sleeves to form sealing. The connecting structure is simple in structure, convenient to connect and good in sealing effect, and compared with a traditional connecting mode, the connecting structure cannot greatly reduce the circulation area of the connecting position after connection.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum-plastic pipe crimping pipe fitting structures, in particular to an aluminum-plastic pipe crimping pipe fitting structure. Background Art

[0002] Traditional pipe joints are complex to connect and require cumbersome assembly steps. In addition, the embedded design reduces the flow area at the connection by at least half. This causes a water hammer effect to occur during the opening and closing process of the water pipe, impacting the location where the flow area of ​​the pipe suddenly shrinks, causing leakage. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, an aluminum-plastic pipe crimping pipe fitting structure is provided, which solves the above problems.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] The invention discloses an aluminum-plastic pipe crimping pipe fitting structure, comprising two aluminum-plastic connecting pipes to be connected, two threaded locking sleeves, two biting sealing sleeves and a synchronous sleeve integrated with the biting sealing sleeves, and a double-end connecting sleeve and a sealing ring. The biting sealing sleeve is fixed at the ends of the aluminum-plastic connecting pipes and forms a seal with the aluminum-plastic connecting pipes, and the double-end connecting sleeve is connected with the two synchronous sleeves to form a seal.

[0006] Preferably, metal teeth are arranged at intervals on the inner wall of the biting tooth sealing sleeve, and screw threads are arranged on the outer wall of the biting tooth sealing sleeve for connecting with the threaded locking sleeve. When the threaded locking sleeve is screwed in, the biting tooth sealing sleeve is tightened and the metal teeth are pressed into the outside of the aluminum-plastic connecting pipe to form a bite fixation.

[0007] Preferably, a sealing ring groove for inserting and sealing the end of the aluminum-plastic connecting pipe is provided on the inner side of the synchronous pipe sleeve.

[0008] Preferably, after the threaded locking sleeve and the biting sealing sleeve are fixedly installed, the double-end connecting sleeve is connected to the two synchronous sleeves at the same time.

[0009] Preferably, the interior of the double-end connecting pipe sleeve is provided with two left and right sections of screw threads of the same length but different rotation directions for connecting with the synchronous pipe sleeve. When the double-end connecting pipe sleeve is rotated, it will be tightened synchronously with the synchronous pipe sleeve. When the double-end connecting pipe sleeve is rotated in the opposite direction, it will be loosened synchronously with the synchronous pipe sleeve, which is convenient for operation.

[0010] Preferably, a sealing ring is provided on the front end face of the synchronous sleeve, and the sealing ring is embedded between two sealing rings. After the double-end connecting sleeve is tightened, the sealing ring seals the end faces between the synchronous sleeves, and at the same time, the screw-on threads of the double-end connecting sleeve and the synchronous sleeve can also provide sealing.

[0011] The advantages and positive effects of the utility model are: simple structure, convenient connection and good sealing effect. Compared with the traditional connection method, the flow area of ​​the connection part of the structure will not be greatly reduced after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the assembly structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the utility model;

[0015] Figure 3 yes Figure 1 An enlarged structural diagram of the middle biting tooth sealing sleeve 11 and the synchronous sleeve 12 (the threads on the biting tooth sealing sleeve 11 and the synchronous sleeve 12 are omitted). DETAILED DESCRIPTION

[0016] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0017] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0018] like Figure 1-3 As shown, the utility model describes an aluminum-plastic pipe crimping pipe fitting structure, including two aluminum-plastic connecting pipes 10 to be connected, and also includes two threaded locking pipe sleeves 15, two biting sealing pipe sleeves 11 and a synchronous pipe sleeve 12 integrated with the biting sealing pipe sleeve 11, and also includes a double-end connecting pipe sleeve 13 and a sealing ring 14. The biting sealing pipe sleeve 11 is fixed to the ends of the aluminum-plastic connecting pipe 10 and forms a seal with the aluminum-plastic connecting pipe 10, and the double-end connecting pipe sleeve 13 is connected with the two synchronous pipe sleeves 12 to form a seal.

[0019] Preferably, metal teeth 17 are provided at intervals on the inner wall of the tooth sealing sleeve 11, and screw threads are provided on the outer wall of the tooth sealing sleeve 11 for connecting with the threaded locking sleeve 15. When the threaded locking sleeve 15 is screwed in, the tooth sealing sleeve 11 is tightened and the metal teeth 17 are pressed into the outside of the aluminum-plastic connecting pipe 10 to form a bite fixation.

[0020] Preferably, a sealing annular groove 16 for inserting and sealing the end of the aluminum-plastic connecting pipe 10 is provided on the inner side of the synchronous pipe sleeve 12 .

[0021] Preferably, after the threaded locking sleeve 15 and the biting seal sleeve 11 are fixedly installed, the double-end connecting sleeve 13 is connected to the two synchronous sleeves 12 at the same time.

[0022] Preferably, the interior of the double-end connecting pipe sleeve 13 is provided with two left and right sections of screw threads of the same length but different rotation directions for connecting with the synchronous pipe sleeve 12. When the double-end connecting pipe sleeve 13 is rotated, it will be tightened synchronously with the synchronous pipe sleeve 12. When the double-end connecting pipe sleeve 13 is rotated in the opposite direction, it will be loosened synchronously with the synchronous pipe sleeve 12, which is convenient for operation.

[0023] Preferably, a sealing ring 18 is provided on the front end face of the synchronous sleeve 12, and the sealing ring 14 is embedded between the two sealing rings 18. After the double-end connecting sleeve 13 is tightened, the sealing ring 18 seals the end faces between the synchronous sleeves 12, and at the same time, the screw-on threads of the double-end connecting sleeve 13 and the synchronous sleeve 12 can also provide sealing.

[0024] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. An aluminum-plastic pipe crimping pipe fitting structure, comprising two aluminum-plastic connecting pipes (10) to be connected, characterized in that: It also includes two threaded locking sleeves (15), two biting seal sleeves (11) and a synchronous sleeve (12) integral with the biting seal sleeves (11), and also includes a double-end connecting sleeve (13) and a sealing ring (14). The biting seal sleeve (11) is fixed to the end of the aluminum-plastic connecting pipe (10) and forms a seal with the aluminum-plastic connecting pipe (10), and the double-end connecting sleeve (13) is connected with the two synchronous sleeves (12) to form a seal.

2. The aluminum-plastic pipe crimping fitting structure according to claim 1, characterized in that: Metal teeth (17) are arranged at intervals on the inner side wall of the toothed sealing sleeve (11), and screw threads are arranged on the outer side wall of the toothed sealing sleeve (11) for connection with the threaded locking sleeve (15). When the threaded locking sleeve (15) is screwed in, the toothed sealing sleeve (11) is tightened and the metal teeth (17) are pressed into the outside of the aluminum-plastic connecting pipe (10) to form a bite-jointed fixation.

3. The aluminum-plastic pipe crimping pipe fitting structure according to claim 2, characterized in that: A sealing ring groove (16) for inserting and sealing the end of the aluminum-plastic connecting pipe (10) is provided on the inner side of the synchronous pipe sleeve (12).

4. The aluminum-plastic pipe crimping pipe fitting structure according to claim 3, characterized in that: After the threaded locking sleeve (15) and the biting seal sleeve (11) are fixedly installed, the double-end connection sleeve (13) is connected to the two synchronous sleeves (12) at the same time.

5. The aluminum-plastic pipe crimping pipe fitting structure according to claim 4, characterized in that: The double-end connecting pipe sleeve (13) is provided with two left and right sections of screw threads of the same length but different rotation directions for connecting with the synchronous pipe sleeve (12). When the double-end connecting pipe sleeve (13) is rotated, it is synchronously tightened with the synchronous pipe sleeve (12). When the double-end connecting pipe sleeve (13) is rotated in the opposite direction, it is synchronously loosened with the synchronous pipe sleeve (12), which is convenient for operation.

6. The aluminum-plastic pipe crimping pipe fitting structure according to claim 5, characterized in that: A sealing ring (18) is provided on the front end surface of the synchronous pipe sleeve (12), and the sealing ring (14) is embedded between the two sealing rings (18). After the double-end connecting pipe sleeve (13) is tightened, the sealing ring (18) seals the end surface between the synchronous pipe sleeves (12), and the screw thread of the double-end connecting pipe sleeve (13) and the synchronous pipe sleeve (12) can also provide sealing.

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