Novel heating and ventilation pipeline

Abstract

According to the novel heating and ventilation pipeline, an external thread splicing pipe and an internal thread are subjected to threaded splicing, an annular air bag is inflated through a pushing part, an arc-shaped notch and an inflation sealing structure in the splicing process, the pipeline butt joint position is further sealed through the inflated fantastic air bag, and the sealing performance is improved; and the position of the pushing part is limited through the spring, the trapezoidal block and the fixed shaft after the pipelines are butted and spliced, so that good air tightness is maintained.

Description

Technical Field

[0001] The utility model relates to the field of HVAC pipelines, in particular to a novel HVAC pipeline. Background Art

[0002] Heating, ventilation and air conditioning are indispensable in buildings, and are installed in both home and commercial buildings. The installation of these basic facilities requires the use of HVAC pipes, and the pipe specifications used vary according to different needs.

[0003] Existing pipelines are often spliced ​​together using bolts. The actual splicing process involves multiple tools, making it inconvenient to operate, and the sealing performance of the joint after splicing the two pipelines is poor. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model discloses a novel HVAC pipe, which adopts the following technical solution: a splicing pipe, an internal thread, a splicing ring, an annular airbag, an arc-shaped notch, a splicing pipe, a limiting ring, an externally threaded splicing pipe, a pushing part, an inflatable sealing structure, a spring, a trapezoidal block and a fixed shaft; the splicing pipe has an internal thread inside, a splicing ring is fixed on one end, an annular airbag is fixed on the inner wall of the splicing ring, an arc-shaped notch is opened on the left side of the splicing ring, a limiting ring and an externally threaded splicing pipe are fixed on the right end of the splicing pipe, and the splicing pipe has an externally threaded splicing pipe. A pushing part is also provided at the wall, and an inflatable sealing structure is provided in the splicing ring, which is connected to the annular airbag. The pushing part drives the inflatable sealing structure. When the splicing pipe 1 and the splicing pipe 2 are docked, the pushing part extends into the arc-shaped groove. During the process of threaded splicing and rotation of the external threaded splicing pipe and the internal thread, the pushing part will drive the inflatable sealing structure to operate during the rotation, pushing the air into the annular airbag. When the threaded part is completely spliced, the limit ring is in close contact with the end face of the splicing pipe 1, and the airbag is continuously inflated during the docking process to increase the sealing of the docking joint.

[0005] As an optimal technical solution of the present invention, the inflation sealing structure includes an inflation chamber, a connecting pipe, a piston plate and an arc-shaped piston rod. An inflation chamber is provided in the splicing ring, and the inflation chamber and the annular airbag are connected through a connecting pipe. A piston plate is provided in the inflation chamber, and a through slot is opened between the inflation chamber and the arc-shaped slot. The arc-shaped piston rod passes through the slot, and one end of the arc-shaped piston rod is fixedly connected to the piston plate. When the pipelines are spliced, the pushing part will extend into the arc-shaped slot and be outside the end of the arc-shaped piston rod. When the pipelines are spliced ​​by threaded rotation, the pushing part rotates along the arc-shaped slot to push the arc-shaped piston rod to drive the piston plate to move and push the air in the inflation chamber into the annular airbag. The inflation of the annular airbag improves the sealing of the joint.

[0006] As an optimal technical solution of the present invention, the pushing part includes a protruding block and an insertion shaft. The protruding block is integrally formed on the outer wall of the second spliced ​​pipe. The protruding block has a hole, and the insertion shaft is movably inserted in the hole.

[0007] As a preferred technical solution of the present invention, an installation cavity is provided in the side walls of the spliced ​​pipe 1 and the spliced ​​pipe 2, and a plurality of fixed pipes are distributed in the installation cavity, and the fixed pipes are made of insulation material.

[0008] As an optimal technical solution of the present invention, the insertion shaft is tightly pressed against the inner wall of the hole opened on the protruding block, and a screw with an installation end extending into the hole is matched outside the protruding block to lock the position of the insertion shaft.

[0009] The beneficial effects of the utility model are as follows: the external threaded splicing pipe and the internal thread are threadedly spliced, and during the splicing process, the annular airbag is inflated by the pushing part, the arc-shaped groove and the inflation sealing structure, and the inflated fantasy airbag is used to further seal the pipe joint to improve the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a schematic diagram of a cross-sectional structure of a spliced ​​pipe according to the present invention;

[0012] Figure 3 It is a schematic diagram of the front side cross-sectional structure of the utility model.

[0013] In the figure: splicing pipe 1, installation cavity 101, fixing pipe 102, internal thread 2, splicing ring 3, annular airbag 4, arc-shaped notch 5, splicing pipe 2 6, limiting ring 7, external thread splicing pipe 8, protruding block 9, plug shaft 10, inflation cavity 11, connecting pipe 12, piston plate 13, arc-shaped piston rod 14. DETAILED DESCRIPTION

[0014] Example 1

[0015] like Figures 1 to 3 As shown, the utility model discloses a novel HVAC pipe, and the technical solution adopted is, including a splicing pipe 1, an internal thread 2, a splicing ring 3, an annular airbag 4, an arc-shaped notch 5, a splicing pipe 2 6, a limiting ring 7, an externally threaded splicing pipe 8, a pushing part and an inflatable sealing structure. The splicing pipe 1 has an internal thread 2, a splicing ring 3 is fixed on one end, an annular airbag 4 is fixed on the inner wall of the splicing ring 3, an arc-shaped notch 5 is opened on the left side of the splicing ring 3, a limiting ring 7 and an externally threaded splicing pipe 8 are fixed on the right end of the splicing pipe 2 6, a pushing part is also provided on the outer wall of the splicing pipe 2 6, an inflatable sealing structure is provided in the splicing ring 3, which is connected to the annular airbag 4, and the pushing part drives the inflatable sealing structure.

[0016] As an optimal technical solution of the present invention, in order to improve the sealing of the joints after the pipes are spliced, an inflatable sealing structure is provided, the specific structure of which includes an inflatable chamber 11, a connecting pipe 12, a piston plate 13 and an arc-shaped piston rod 14. An inflatable chamber 11 is provided in the splicing ring 3, and the inflatable chamber 11 is connected to the annular airbag 4 through a connecting pipe 12. A piston plate 13 is provided in the inflatable chamber 11, and a through slot is provided between the inflatable chamber 11 and the arc-shaped slot 5. The arc-shaped piston rod 14 passes through the slot, and one end of the arc-shaped piston rod 14 is fixedly connected to the piston plate 13.

[0017] As an optimal technical solution of the present invention, the pushing part includes a protruding block 9 and an inserting shaft 10. The protruding block 9 is integrally formed on the outer wall of the spliced ​​pipe 2 6. The protruding block 9 has a hole, and the inserting shaft 10 is movably inserted in the hole.

[0018] As a preferred technical solution of the present invention, an installation cavity 101 is provided in the side wall of the spliced ​​pipe 1 and the spliced ​​pipe 2 6, and a plurality of fixed pipes 102 are distributed in the installation cavity 101, and the fixed pipes 102 are made of insulation material.

[0019] As a preferred technical solution of the present invention, the insertion shaft 10 is tightly pressed against the inner wall of the hole opened on the protruding block 9 .

[0020] The working principle of the utility model is as follows: when in use, the splicing pipe 1 and the splicing pipe 2 are spliced ​​together. During the docking process, the inserted shaft is extended into the arc-shaped groove and, during the process of rotating the splicing pipes through the internal thread and the external thread, the inserted shaft pushes the arc-shaped piston rod to move and push the piston plate to push the air in the inflation chamber into the annular airbag to inflate the annular airbag. The inflated annular airbag can improve the sealing performance of the docking point.

[0021] Components not described in detail herein are prior art.

[0022] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention. Modifications or deformations that do not involve creative work are still within the scope of protection of the present invention.

Claims

1. A new type of HVAC pipeline, characterized by: The invention comprises a splicing pipe (1), an internal thread (2), a splicing ring (3), an annular airbag (4), an arc-shaped notch (5), a splicing pipe (6), a limiting ring (7), an externally threaded splicing pipe (8), a pushing part and an inflatable sealing structure; the splicing pipe (1) has an internal thread (2) and a splicing ring (3) fixed on one end; an annular airbag (4) is fixed on the inner wall of the splicing ring (3); an arc-shaped notch (5) is opened on the left side of the splicing ring (3); a limiting ring (7) and an externally threaded splicing pipe (8) are fixed on the right end of the splicing pipe (6); a pushing part is also provided on the outer wall of the splicing pipe (6); an inflatable sealing structure is provided in the splicing ring (3), which is connected to the annular airbag (4), and the pushing part drives the inflatable sealing structure.

2. The novel HVAC pipeline according to claim 1 is characterized in that: The inflation sealing structure comprises an inflation chamber (11), a connecting pipe (12), a piston plate (13) and an arc-shaped piston rod (14); an inflation chamber (11) is provided in the splicing ring (3), and the inflation chamber (11) is connected to the annular airbag (4) through the connecting pipe (12); a piston plate (13) is provided in the inflation chamber (11); a through slot is provided between the inflation chamber (11) and the arc-shaped slot (5), and the arc-shaped piston rod (14) passes through the slot, and one end of the arc-shaped piston rod (14) is fixedly connected to the piston plate (13).

3. The novel HVAC pipeline according to claim 2 is characterized in that: The pushing portion comprises a protruding block (9) and an inserting shaft (10); the protruding block (9) is integrally formed on the outer wall of the second spliced ​​pipe (6); a hole is opened on the protruding block (9), and the inserting shaft (10) is movably inserted in the hole; the protruding block (9) is fitted with a mounting screw, and the other end of the screw can extend into the hole to lock the inserting shaft (10).

4. The novel HVAC pipeline according to claim 1 is characterized in that: The side walls of the spliced ​​pipe 1 (1) and the spliced ​​pipe 2 (6) are both provided with an installation cavity (101), and a plurality of fixed pipes (102) are distributed in the installation cavity (101).

5. The novel HVAC pipeline according to claim 4 is characterized in that: The fixed pipe (102) is made of heat-insulating material.

6. The novel HVAC pipeline according to claim 3 is characterized in that: The inserting shaft (10) is tightly pressed against the inner wall of the hole opened on the protruding block (9).

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