Fuel gas steel-plastic adapter convenient to disassemble and maintain

Abstract

The utility model relates to the technical field of fuel gas steel-plastic conversion connectors, and discloses a fuel gas steel-plastic conversion connector convenient to disassemble and maintain, which comprises a main pipe body, an auxiliary pipe body and a conversion pipe, the right side of the main pipe body is fixedly connected with a main connecting cylinder, and the left side of the auxiliary pipe body is fixedly connected with an auxiliary connecting cylinder. Main fixing rods are fixedly connected to the top and the bottom of the main connecting cylinder respectively, auxiliary fixing rods are fixedly connected to the front side and the rear side of the auxiliary connecting cylinder respectively, a sealing ring is fixedly connected to the interior of the adapter tube, a connecting ring is fixedly connected to the outer side of the adapter tube, and a through hole is formed in the surface of the connecting ring. According to the fuel gas steel-plastic adapter convenient to disassemble and maintain, the adapter is fastened through the auxiliary nut, so that connection is firmer, disassembly is more convenient, during installation, the main fixing rod and the auxiliary fixing rod are inserted into the left fastening groove and the right fastening groove correspondingly, and the stability of connection is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas steel-plastic conversion joints, in particular to a gas steel-plastic conversion joint which is easy to disassemble and maintain. Background Art

[0002] The anti-corrosion heat shrink application of steel-plastic conversion joints is the buried anti-corrosion maintenance and wall maintenance of natural gas DN steel pipes. It requires special design plans for the anti-corrosion of straight and hollow frame steel pipe welding and the joint anti-corrosion, sealing, wear resistance and aesthetics of the steel-plastic conversion section. It can also be used for the sealing and anti-corrosion of pipeline slip-on flanges, insulating flanges and card (lock) clamp positions to manufacture a solid anti-corrosion body with wear resistance, corrosion resistance, impact resistance, good UV and aging resistance.

[0003] Chinese patent authorization announcement number CN 211525782 U discloses an underground gas pipeline steel-plastic conversion joint, including a connecting pipe, a threaded pipe is screwed on the outer wall of the left end of the connecting pipe, a rubber sleeve is bonded to the left outer wall of the threaded pipe, a first rubber tube is bonded between the left inner wall of the rubber sleeve and the left end of the threaded pipe, a first groove is provided on the outer wall of the first rubber tube, a first hoop is sleeved in the first groove, a connecting piece is integrally formed on the upper part of the right outer wall of the connecting pipe, a second rubber tube is fixedly inserted in the connecting piece, a second groove is provided on the outer wall of the second rubber tube, a second hoop is sleeved in the second groove, a waterproof rubber layer is bonded between the first rubber tube and the threaded pipe, and the inner wall of the first rubber tube is engraved with anti-slip patterns. The connection between the pipelines of the device is easy to prevent gas leakage, and the connection has good corrosion resistance.

[0004] However, the above-mentioned prior art has the problem of being unable to be effectively tightened during use, resulting in poor overall stability during use. Therefore, a gas steel-plastic conversion joint that is easy to disassemble and maintain is desired. Utility Model Content

[0005] The utility model aims to provide a gas steel-plastic conversion joint which is easy to disassemble and maintain, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a gas steel-plastic conversion joint which is easy to disassemble and maintain, comprising a main pipe body, a sub-pipe body and a transition pipe, the right side of the main pipe body is fixedly connected with a main connecting tube, the left side of the sub-pipe body is fixedly connected with a sub-connecting tube, the top and bottom of the main connecting tube are respectively fixedly connected with a main fixing rod, the front and rear sides of the sub-connecting tube are respectively fixedly connected with a sub-fixing rod, the inside of the transition pipe is fixedly connected with a sealing ring, the outside of the transition pipe is fixedly connected with a connecting ring, and the surface of the connecting ring is provided with perforations.

[0007] Preferably, the right side of the main connecting tube is inserted into the adapter tube, and the right side of the main connecting tube is in contact with the sealing ring.

[0008] The main connecting tube and the auxiliary connecting tube are respectively connected to the main pipe body and the auxiliary pipe body, and are respectively inserted from both ends of the transfer tube. The main connecting tube and the auxiliary connecting tube are respectively ensured to have good sealing properties by sealing rings. The setting of the sealing rings can effectively prevent gas leakage, thereby improving the safety of use.

[0009] Preferably, the left side of the auxiliary connecting tube is inserted into the adapter tube, and the left side of the auxiliary connecting tube is in contact with the sealing ring.

[0010] Preferably, the main fixing rod passes through a through hole on one side away from the main connecting tube and is threadedly connected with a main nut, and the secondary fixing rod passes through a through hole on one side away from the secondary connecting tube and is threadedly connected with a secondary nut.

[0011] When the main connecting tube and the auxiliary connecting tube are respectively inserted into the transfer tube, the main fixing rods at the top and bottom of the main connecting tube are respectively inserted into the through holes of the connecting ring and then tightened by the main nuts. At the same time, the auxiliary fixing rods at the front and rear sides of the auxiliary connecting tube are respectively inserted into the through holes of the connecting ring and tightened by the auxiliary nuts, making the connection tighter and easier to disassemble.

[0012] Preferably, a left fastening groove adapted to the main fixing rod is opened on the left side of the adapter tube, and a right fastening groove adapted to the auxiliary fixing rod is opened on the right side of the adapter tube.

[0013] Preferably, an annular groove is provided on the right side of the main connecting tube, and a sealing tube is fixedly connected to the left side of the auxiliary connecting tube.

[0014] An annular groove is provided on the right side of the main connecting tube, which is matched with the sealing tube on the left side of the auxiliary connecting tube. The sealing tube passes through the sealing ring and contacts the annular groove, which again ensures the tightness of the connection.

[0015] Preferably, an annular groove is provided on the right side of the main connecting tube, and a sealing tube is fixedly connected to the left side of the auxiliary connecting tube.

[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0017] First, in the utility model, the main connecting tube and the auxiliary connecting tube are respectively connected to the main pipe body and the auxiliary pipe body, and are respectively inserted from the two ends of the transfer pipe. The main connecting tube and the auxiliary connecting tube ensure good sealing through sealing rings respectively. The setting of the sealing rings can effectively prevent gas leakage, thereby improving the safety of use. When the main connecting tube and the auxiliary connecting tube are respectively inserted into the transfer pipe, the main fixing rods at the top and bottom of the main connecting tube are respectively inserted into the through holes of the connecting rings, and then they are tightened by the main nuts. At the same time, the auxiliary fixing rods on the front and rear sides of the auxiliary connecting tube are respectively inserted into the through holes of the connecting rings, and are tightened by the auxiliary nuts, so that the connection is tighter and more convenient to disassemble. The left fastening groove and the right fastening groove opened on the main pipe body are respectively adapted to the main fixing rod and the auxiliary fixing rod. When installing, the main fixing rod and the auxiliary fixing rod are respectively inserted into the left fastening groove and the right fastening groove, which further enhances the stability of the connection.

[0018] Second, in the present invention, a ring groove is provided on the right side of the main connecting tube, which is matched with the sealing tube on the left side of the auxiliary connecting tube. The sealing tube passes through the sealing ring and contacts the ring groove, which again ensures the tightness of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from the right side;

[0021] Figure 3 This is a schematic diagram of the cutaway front view structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the cutaway top view of the structure of the utility model.

[0023] Among them: 1. main pipe body; 2. auxiliary pipe body; 3. adapter pipe; 4. main connecting tube; 5. auxiliary connecting tube; 6. main fixing rod; 7. auxiliary fixing rod; 8. sealing ring; 9. connecting ring; 10. main nut; 11. auxiliary nut; 12. sealing tube. DETAILED DESCRIPTION

[0024] 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 in 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.

[0025] The utility model provides the following technical solutions:

[0026] Embodiment 1

[0027] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A gas steel-plastic conversion joint which is easy to disassemble and maintain, comprises a main pipe body 1, a sub-pipe body 2 and a transfer pipe 3. The right side of the main pipe body 1 is fixedly connected with a main connecting tube 4, the left side of the sub-pipe body 2 is fixedly connected with a sub-connecting tube 5, the top and bottom of the main connecting tube 4 are respectively fixedly connected with a main fixing rod 6, the front and rear sides of the sub-connecting tube 5 are respectively fixedly connected with a sub-fixing rod 7, the inside of the transfer pipe 3 is fixedly connected with a sealing ring 8, the outside of the transfer pipe 3 is fixedly connected with a connecting ring 9, and the surface of the connecting ring 9 is provided with a through hole.

[0028] The right side of the main connecting tube 4 is inserted into the transfer tube 3 , and the right side of the main connecting tube 4 is in contact with the sealing ring 8 .

[0029] The left side of the auxiliary connecting tube 5 is inserted into the adapter tube 3 , and the left side of the auxiliary connecting tube 5 is in contact with the sealing ring 8 .

[0030] The main fixing rod 6 passes through the through hole at one side away from the main connecting tube 4 and is threadedly connected with the main nut 10 . The auxiliary fixing rod 7 passes through the through hole at one side away from the auxiliary connecting tube 5 and is threadedly connected with the auxiliary nut 11 .

[0031] A left fastening groove adapted to the main fixing rod 6 is formed on the left side of the adapter tube 3 , and a right fastening groove adapted to the auxiliary fixing rod 7 is formed on the right side of the adapter tube 3 .

[0032] Through the above technical scheme, the main connecting tube 4 and the auxiliary connecting tube 5 are respectively connected to the main pipe body 1 and the auxiliary pipe body 2, and are respectively inserted from the two ends of the transfer pipe 3. The main connecting tube 4 and the auxiliary connecting tube 5 ensure good sealing through the sealing ring 8. The setting of the sealing ring 8 can effectively prevent gas leakage, thereby improving the safety of use. When the main connecting tube 4 and the auxiliary connecting tube 5 are respectively inserted into the transfer pipe 3, the main fixing rods 6 at the top and bottom of the main connecting tube 4 are respectively inserted into the through holes of the connecting ring 9, and then they are tightened by the main nuts 10. At the same time, the auxiliary fixing rods 7 on the front and rear sides of the auxiliary connecting tube 5 are respectively inserted into the through holes of the connecting ring 9 and tightened by the auxiliary nuts 11, so that the connection is tighter and more convenient to disassemble. The left fastening groove and the right fastening groove opened on the main pipe body 1 are respectively adapted to the main fixing rod 6 and the auxiliary fixing rod 7. When installed, the main fixing rod 6 and the auxiliary fixing rod 7 are respectively inserted into the left fastening groove and the right fastening groove, which further enhances the stability of the connection.

[0033] Embodiment 2

[0034] See also Figure 4 On the basis of the first embodiment, it is further obtained that: an annular groove is provided on the right side of the main connecting tube 4 , and a sealing tube 12 is fixedly connected to the left side of the auxiliary connecting tube 5 .

[0035] An annular groove is provided on the right side of the main connecting tube 4 , and a sealing tube 12 is fixedly connected to the left side of the auxiliary connecting tube 5 .

[0036] Through the above technical solution, an annular groove is opened on the right side of the main connecting tube 4, which is adapted to the sealing tube 12 on the left side of the auxiliary connecting tube 5. The sealing tube 12 passes through the sealing ring 8 and contacts the annular groove, which again ensures the tightness of the connection.

[0037] In actual operation, when this device is in use, the main connecting tube 4 and the auxiliary connecting tube 5 are respectively inserted into the transfer tube 3, and the sealing tube 12 on the left side of the auxiliary connecting tube 5 is passed through the sealing ring 8 and abutted against the ring groove on the left side of the main connecting tube 4, so that the main connecting tube 4 and the auxiliary connecting tube 5 are respectively fitted with and abutted against the sealing ring 8, and the main fixing rods 6 at the top and bottom of the main connecting tube 4 are respectively inserted into the through holes of the connecting ring 9, and then they are tightened by the main nuts 10. At the same time, the auxiliary fixing rods 7 on the front and rear sides of the auxiliary connecting tube 5 are respectively inserted into the through holes of the connecting ring 9 and tightened by the auxiliary nuts 11, so that the connection is tighter and more convenient to disassemble. The left fastening groove and the right fastening groove opened on the main pipe body 1 are respectively adapted to the main fixing rod 6 and the auxiliary fixing rod 7. When installing, the main fixing rod 6 and the auxiliary fixing rod 7 are respectively inserted into the left fastening groove and the right fastening groove, which further enhances the stability of the connection.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A gas steel-plastic conversion joint that is easy to disassemble and maintain, comprising a main pipe body (1), a secondary pipe body (2), and a conversion pipe (3), characterized in that: The right side of the main pipe body (1) is fixedly connected to a main connecting tube (4), the left side of the auxiliary pipe body (2) is fixedly connected to an auxiliary connecting tube (5), the top and bottom of the main connecting tube (4) are respectively fixedly connected to main fixing rods (6), the front and rear sides of the auxiliary connecting tube (5) are respectively fixedly connected to auxiliary fixing rods (7), the interior of the transfer tube (3) is fixedly connected to a sealing ring (8), the outer side of the transfer tube (3) is fixedly connected to a connecting ring (9), and the surface of the connecting ring (9) is provided with a through hole.

2. The gas steel-plastic conversion joint that is easy to disassemble and maintain according to claim 1 is characterized by: The right side of the main connecting tube (4) is inserted into the adapter tube (3), and the right side of the main connecting tube (4) is in contact with the sealing ring (8).

3. The gas steel-plastic conversion joint that is easy to disassemble and maintain according to claim 1 is characterized by: The left side of the auxiliary connecting tube (5) is inserted into the adapter tube (3), and the left side of the auxiliary connecting tube (5) is in contact with the sealing ring (8).

4. The gas steel-plastic conversion joint that is easy to disassemble and maintain according to claim 1 is characterized by: The main fixing rod (6) passes through a through hole on one side away from the main connecting tube (4) and is threadedly connected to a main nut (10), and the auxiliary fixing rod (7) passes through a through hole on one side away from the auxiliary connecting tube (5) and is threadedly connected to an auxiliary nut (11).

5. The gas steel-plastic conversion joint that is easy to disassemble and maintain according to claim 1 is characterized by: A left fastening groove adapted to the main fixing rod (6) is provided on the left side of the adapter tube (3), and a right fastening groove adapted to the auxiliary fixing rod (7) is provided on the right side of the adapter tube (3).

6. The gas steel-plastic conversion joint that is easy to disassemble and maintain according to claim 1 is characterized by: An annular groove is provided on the right side of the main connecting tube (4), and a sealing tube (12) is fixedly connected to the left side of the auxiliary connecting tube (5).

7. A gas steel-plastic conversion joint that is easy to disassemble and maintain according to claim 6, characterized in that: The sealing sleeve (12) is matched with the annular groove, and the sealing sleeve (12) is in conflict with the annular groove.

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