A spiral duct for easy connection assembly

Abstract

This utility model discloses a spiral duct for easy connection and assembly, including a duct, a connector fixedly connected to the middle of one end sidewall of the duct, and positioning posts evenly fixedly connected to the sidewall of the connector away from the duct. A slot is formed in the middle of the sidewall of the duct away from the connector, and a positioning groove is formed in the middle of one end sidewall of the slot. The connector is inserted into the slot, and the positioning posts are inserted into the positioning groove. This utility model has the following advantages: inserting the connector into the slot will simultaneously insert the positioning posts into the corresponding positioning grooves, thereby completing the assembly and splicing between two ducts. This simple insertion method can effectively improve the efficiency of duct assembly and splicing. Because the operation is simple, it is easier to complete the assembly requirements in actual construction. By opening a limiting groove in the slot and fixing a protrusion on the outer wall of the connector, the stability after insertion can be increased. The positioning posts can extend the insertion depth and improve the anti-tilting effect.

Description

Technical Field

[0001] This utility model relates to the technical field of spiral duct splicing structure, specifically to a spiral duct that is easy to connect and assemble. Background Technology

[0002] Spiral ducts are used for exhausting air. They are made by spirally winding steel strips and are a common type of duct structure on the market. They are mainly used for air circulation between two locations and serve as ventilation.

[0003] In some situations, it is necessary to connect pipes to each other to achieve air circulation in long spaces. Currently, pipe connections are still made using flanges and corner fittings, which is cumbersome in practice and seriously delays the construction period. Therefore, a spiral duct that is easy to connect and assemble is proposed here. Utility Model Content

[0004] The technical problem this invention aims to solve is that the current splicing of pipes still uses flanges and connecting corner fittings, which is cumbersome in practice and seriously delays the construction period. This invention provides a spiral duct that is easy to connect and assemble, which can achieve the effect of connection and assembly through simple plug-in and rotation, without the need for extra components, reducing the complexity of assembly and improving assembly efficiency.

[0005] The technical solution adopted by this utility model to solve the technical problem is: a spiral air duct that is easy to connect and assemble, including an air duct, a plug is fixedly connected to the middle of one end side wall of the air duct, positioning posts are evenly fixedly connected to the side wall of the plug away from the air duct, a slot is opened in the middle of the side wall of the air duct away from the plug, a positioning groove is opened in the middle of one end side wall of the slot, the plug is inserted into the slot, and the positioning post is inserted into the positioning groove.

[0006] As a preferred technical solution of this utility model, an anti-retraction plate is fixedly connected to the inner ring wall of the positioning post and the side wall away from the plug. The anti-retraction plate has a wedge-shaped structure. A storage groove is opened on one side wall of the positioning groove, and a torsion spring is rotatably connected to one corner of the storage groove.

[0007] As a preferred technical solution of this utility model, a baffle is provided in the storage slot, one end of the baffle is fixedly connected to one end of the torsion spring, and a control plate is fixedly connected to the end of the torsion spring away from the baffle. The control plate has an outwardly tilted and raised structure, and a pressing block is fixedly connected to the side wall opposite to the positioning post and the control plate.

[0008] As a preferred embodiment of this utility model, the baffle and the anti-retraction plate are corresponding wedge-shaped structures, the end of the pressing block away from the positioning post is an inclined structure, and the sidewall of the control plate opposite to the pressing block is a corresponding inclined structure.

[0009] As a preferred embodiment of this utility model, a limiting groove is provided in the slot near the opening. The limiting groove has a Z-shaped structure. The outer ring wall of the plug is uniformly fixedly connected with protrusions. The protrusions have a cylindrical structure and are slidably inserted into the limiting groove.

[0010] This utility model has the following advantages: when the plug is inserted into the slot, the positioning post is also inserted into the corresponding positioning groove, thereby completing the assembly and splicing between the two air ducts. This simple plug-in connection can effectively improve the efficiency of the assembly and splicing between air ducts, and because the operation is simple, it is easier to complete the assembly requirements in the actual construction process.

[0011] By creating a limiting groove in the slot and fixing a protrusion on the outer wall of the connector, the stability after insertion can be increased. The positioning post can extend the insertion depth and improve the anti-tilting effect. The positioning post can increase the stability of the insertion by using anti-retraction plates and baffles. Attached Figure Description

[0012] Figure 1 This is an exploded view of the pipe structure according to a preferred embodiment of the present invention;

[0013] Figure 2 This is a partial structural diagram of the pipe assembly according to a preferred embodiment of the present invention;

[0014] Figure 3 This is a preferred embodiment of the present utility model. Figure 2 Enlarged structural diagram at point A in the middle.

[0015] Explanation of reference numerals in the attached diagram: 1. Air duct; 2. Connector; 3. Positioning post; 4. Slot; 5. Positioning groove; 6. Protrusion; 7. Limiting groove; 8. Anti-retraction plate; 9. Pressing block; 10. Control board; 11. Torsion spring; 12. Storage groove; 13. Baffle. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Please refer to the following: Figure 1-3This utility model discloses a spiral duct that is easy to connect and assemble, including a duct 1. A connector 2 is fixedly connected to the middle of one end side wall of the duct 1. Positioning posts 3 are evenly fixedly connected to the side wall of the connector 2 away from the duct 1. A slot 4 is opened in the middle of the side wall of the duct 1 away from the connector 2. A positioning groove 5 is opened in the middle of one end side wall of the slot 4. The connector 2 is inserted into the slot 4, and the positioning post 3 is inserted into the positioning groove 5.

[0018] The technical advantages of this solution are as follows: slots 4 and fixed connectors 2 are respectively opened at both ends of the air duct 1. When the air duct 1 needs to be assembled, the connector 2 is aligned with the slot 4 on the air duct 1 to be assembled, and then the slot 4 is inserted into the connector 2. After rotation, the positioning pin 3 is inserted into the positioning groove 5, and the assembly connection effect can be achieved. This simple plug-in method can effectively simplify the assembly steps, thereby reducing the cumbersomeness of operation, improving the assembly efficiency, and reducing the need to use too many other parts, thus reducing the assembly cost.

[0019] An anti-retraction plate 8 is fixedly connected to the inner wall of the positioning post 3 and the side wall away from the connector 2. The anti-retraction plate 8 has a wedge-shaped structure. A storage groove 12 is opened on one side wall of the positioning groove 5. A torsion spring 11 is rotatably connected to one corner of the storage groove 12. A baffle 13 is provided in the storage groove 12. One end of the baffle 13 is fixedly connected to one end of the torsion spring 11. A control plate 10 is fixedly connected to the end of the torsion spring 11 away from the baffle 13. The control plate 10 has an outwardly tilted and raised structure. The positioning post 3 and A pressing block 9 is fixedly connected to the opposite side wall of the control plate 10. The baffle 13 and the anti-retraction plate 8 are corresponding wedge-shaped structures. The end of the pressing block 9 away from the positioning post 3 is an inclined structure. The side wall of the control plate 10 and the pressing block 9 are corresponding inclined structures. A limiting groove 7 is opened in the slot 4 near the opening. The limiting groove 7 is a Z-shaped structure. The outer ring wall of the plug 2 is uniformly fixedly connected with protrusions 6. The protrusions 6 are cylindrical structures. The protrusions 6 are slidably inserted into the limiting groove 7.

[0020] The technical effect of this solution is as follows: A limiting groove 7 is opened in the slot 4. When the connector 2 is inserted into the slot 4, the protrusion 6 will also be inserted into the limiting groove 7 at the same time. After the connector 2 is inserted into the limiting groove 7 to the end, the corresponding air duct 1 is rotated, and then the connector 2 is pushed in. At this time, the positioning post 3 has been aligned with the positioning groove 5 by rotation. Afterwards, the insertion action of the connector 2 will also insert the positioning post 3 into the corresponding positioning groove 5, thereby achieving a complete assembly effect. The limiting groove 7 and the protrusion 6 can improve the anti-retraction performance, while the baffle 13 connected in the positioning groove 5 and the anti-retraction plate 8 connected to the positioning post 3 can improve the stability of the connection.

[0021] Specifically, when using this utility model, the connector 2 is aligned with the corresponding slot 4, and then the connector 2 is inserted into the slot 4. At the same time, the protrusion 6 is inserted into the limiting groove 7. After insertion, the air duct 1 fixed with the connector 2 is rotated, and then it is inserted further to insert the positioning post 3 into the positioning groove 5. As the positioning post 3 is inserted, the anti-retraction plate 8 will first pass through the control plate 10 and the baffle 13 to reach the bottom. Then the pressing block 9 will fit against the control plate 10, and as it descends, it will gradually apply pressure to the control plate 10. Under pressure, the control plate 10 will drive the baffle 13 to tilt up through the torsion spring 11, thereby blocking the top of the anti-retraction plate 8 and completing the sealing of the connection between the positioning post 3 and the positioning groove 5. In this way, the stability of the assembly and splicing is improved.

[0022] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0023] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A spiral duct for easy connection assembly comprising a duct (1), characterized in that, A connector (2) is fixedly connected to the middle of one end side wall of the air duct (1). Positioning posts (3) are evenly fixedly connected to the side wall of the end of the connector (2) away from the air duct (1). A slot (4) is opened in the middle of the side wall of the end of the air duct (1) away from the connector (2). A positioning groove (5) is opened in the middle of one end side wall of the slot (4). The connector (2) is inserted into the slot (4), and the positioning post (3) is inserted into the positioning groove (5). An anti-retraction plate (8) is fixedly connected to the inner ring wall of the positioning post (3) and the side wall away from the connector (2). The anti-retraction plate (8) is a wedge-shaped structure. A storage groove (12) is opened on one side wall of the positioning groove (5). A torsion spring (11) is rotatably connected to one corner of the storage groove (12).

2. A spiral duct of the type which is easily connected and assembled according to claim 1, characterized in that, A baffle (13) is provided in the storage slot (12). One end of the baffle (13) is fixedly connected to one end of the torsion spring (11). The end of the torsion spring (11) away from the baffle (13) is fixedly connected to a control plate (10). The control plate (10) has an outward tilting structure. A pressing block (9) is fixedly connected to the side wall opposite to the positioning post (3) and the control plate (10).

3. A spiral duct of the type which is easily connected and assembled according to claim 2, characterized in that, The baffle (13) and the anti-retraction plate (8) are corresponding wedge-shaped structures. The end of the pressing block (9) away from the positioning post (3) is an inclined structure. The sidewalls of the control plate (10) opposite to the pressing block (9) are corresponding inclined structures.

4. A spiral duct of the type which is easily connected and assembled according to claim 1, characterized in that, A limiting groove (7) is provided in the slot (4) near the opening. The limiting groove (7) has a Z-shaped structure. The outer ring wall of the plug (2) is uniformly fixedly connected with protrusions (6). The protrusions (6) have a cylindrical structure and are slidably inserted into the limiting groove (7).

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