Online sealing device of double-layer sealing spiral air pipe

Abstract

The utility model relates to the technical field of spiral air pipes, in particular to an on-line sealing device of a double-layer sealing spiral air pipe, which comprises an air pipe, a sealing ring and a sealing ring. An extension ring is arranged on the surface of the sealing gasket, a through hole and an open groove are formed in the surface of the fixing ring, a through groove is formed in the bottom of the open groove, and a connecting rod is arranged in the through groove; the clamping ring is arranged in the air pipe; the device has the beneficial effects that a sealing gasket is placed between two sets of screws, the screws are inserted into through holes, the other ends of the screws are connected through nuts, the two sets of screws are fixed, an extension ring is arranged on the surface of the sealing gasket, the extension ring is inserted into an air inlet pipe, annular grooves in the surfaces of the screws rotate in rotating rings, and jacking blocks are inserted into open grooves; and the jacking block moves along with the screw rod, the jacking block moves in the open groove and then jacks the surface of the connecting rod, the connecting rod moves along with the jacking block, the connecting rod drives the clamping ring to move after moving, and the clamping ring jacks the surface of the extension ring.

Description

Technical Field

[0001] The utility model relates to the field of spiral air ducts, in particular to an online sealing device for a double-layer sealed spiral air duct. Background Art

[0002] The pipe is mainly used to connect the air flow between two places, playing the role of ventilation. The most widely used on the market is the spiral air duct;

[0003] In the prior art, when two sets of spiral air ducts are connected, the spiral air ducts are fixed by screws, and a sealing gasket is placed between the two sets of spiral air ducts to play a sealing role;

[0004] However, after a long time, the gasket will be deformed, resulting in poor sealing quality between the two sets of spiral air ducts. The gasket needs to be replaced and the spiral air duct needs to be disassembled, which increases the workload. Utility Model Content

[0005] The purpose of the utility model is to provide an online sealing device for a double-layer sealed spiral air duct to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an online sealing device for a double-layer sealed spiral air duct, the online sealing device for a double-layer sealed spiral air duct comprising:

[0007] An air duct, the end of which is provided with a fixing ring;

[0008] A sealing gasket, wherein an extension ring is arranged on the surface of the sealing gasket, a through hole and a groove are opened on the surface of the fixing ring, a through groove is opened at the bottom of the groove, and a connecting rod is arranged in the through groove; and

[0009] The clamping ring is arranged inside the air duct.

[0010] Preferably, the sealing gasket is located between the two groups of air ducts, and extension rings are fixed at both ends of the sealing gasket, and the extension rings are inserted into the interior of the air ducts.

[0011] Preferably, the fixing ring is fixed to the end of the air duct, the through hole is located at the top of the slot, and a screw is inserted in the through hole, and a ring groove is formed on the surface of the screw.

[0012] Preferably, a rotating ring is provided on the surface of the annular groove, and the rotating ring can rotate on the surface of the annular groove.

[0013] A supporting block is fixed on the surface of the rotating ring.

[0014] Preferably, the supporting block rotates with the rotating ring, and when the screw rod is inserted into the through hole, the supporting block is located in the slot, and the supporting block is supported on the surface of the connecting rod.

[0015] Preferably, the end of the connecting rod is connected to a clamping ring, and the clamping ring moves with the connecting rod.

[0016] After the clamping ring moves, the clamping ring and the air duct are clamped on the surface of the extension ring.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model proposes that the sealing gasket is placed between two groups of screw rods, the screw rods are inserted into the through holes, and the other ends are connected by nuts to fix the two groups of screw rods, and an extension ring is provided on the surface of the sealing gasket, the extension ring is inserted into the inside of the air inlet duct, the annular groove on the surface of the screw rod rotates in the rotating ring, and the supporting block is inserted into the slot, the supporting block moves with the screw rod, and the supporting block is supported on the surface of the connecting rod after moving in the slot, the connecting rod moves with the supporting block, and the connecting rod moves and drives the clamping ring to move, and the clamping ring is supported on the surface of the extension ring, and the clamping ring and the extension ring form a second seal. 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 sealing gasket structure of the utility model;

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

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the air duct of the utility model;

[0023] Figure 5 for Figure 4 A schematic diagram of the enlarged structure in the middle.

[0024] In the figure: air duct 1, sealing gasket 2, screw 3, extension ring 4, supporting block 5, ring groove 6, rotating ring 7, fixing ring 8, through hole 9, slot 10, through groove 11, clamping ring 12, connecting rod 13. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0026] Embodiment 1

[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: an online sealing device for a double-layer sealed spiral air duct, the online sealing device for a double-layer sealed spiral air duct comprising: an air duct 1, a fixing ring 8 is arranged at the end of the air duct 1; a sealing gasket 2, an extension ring 4 is arranged on the surface of the sealing gasket 2, a through hole 9 and a groove 10 are opened on the surface of the fixing ring 8, a through groove 11 is opened at the bottom of the groove 10, a connecting rod 13 is arranged in the through groove 11; and a clamping ring 12, which is arranged inside the air duct 1, the connecting rod 13 moves with the supporting block 5, and the connecting rod 13 moves and drives the clamping ring 12 to move, the clamping ring 12 is supported on the surface of the extension ring 4, and the clamping ring 12 and the extension ring 4 form a second seal.

[0028] Embodiment 2

[0029] On the basis of Example 1, the sealing gasket 2 is located between the two groups of air ducts 1, and extension rings 4 are fixed at both ends of the sealing gasket 2. The extension ring 4 is inserted into the inside of the air duct 1, and the fixing ring 8 is fixed to the end of the air duct 1. The through hole 9 is located at the top of the slot 10, and a screw 3 is inserted in the through hole 9. An annular groove 6 is provided on the surface of the screw 3, and a rotating ring 7 is provided on the surface of the annular groove 6. The rotating ring 7 can rotate on the surface of the annular groove 6. A supporting block 5 is fixed on the surface of the rotating ring 7. The annular groove 6 on the surface of the screw 3 rotates in the rotating ring 7, and the supporting block 5 is inserted into the slot 10. The supporting block 5 moves with the screw 3. After moving in the slot 10, the supporting block 5 is supported on the surface of the connecting rod 13.

[0030] Embodiment 3

[0031] On the basis of the second embodiment, the supporting block 5 rotates with the rotating ring 7. When the screw 3 is inserted into the through hole 9, the supporting block 5 is located in the slot 10. The supporting block 5 is supported on the surface of the connecting rod 13. The end of the connecting rod 13 is connected to the clamping ring 12. The clamping ring 12 moves with the connecting rod 13. After the clamping ring 12 moves, the clamping ring 12 and the air duct 1 are clamped on the surface of the extension ring 4. The surface of the sealing gasket 2 is provided with an extension ring 4. The extension ring 4 is inserted into the interior of the air inlet duct 1. The annular groove 6 on the surface of the screw 3 rotates in the rotating ring 7.

[0032] In actual use, the sealing gasket 2 is placed between the two groups of screw rods 3, the screw rods 3 are inserted into the through holes 9, and the other ends are connected by nuts to fix the two groups of screw rods 3. An extension ring 4 is provided on the surface of the sealing gasket 2, and the extension ring 4 is inserted into the inside of the air inlet duct 1. The annular groove 6 on the surface of the screw rod 3 rotates in the rotating ring 7, and the supporting block 5 is inserted into the slot 10. The supporting block 5 moves with the screw rod 3. After the supporting block 5 moves in the slot 10, it is supported on the surface of the connecting rod 13. The connecting rod 13 moves with the supporting block 5. After the connecting rod 13 moves, it drives the clamping ring 12 to move. The clamping ring 12 is supported on the surface of the extension ring 4, and the clamping ring 12 and the extension ring 4 form a second seal.

[0033] 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 of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online sealing device for a double-layer sealed spiral air duct, characterized in that: The online sealing device of the double-layer sealed spiral air duct comprises: An air duct (1), wherein a fixing ring (8) is provided at the end of the air duct (1); A sealing gasket (2), wherein an extension ring (4) is disposed on the surface of the sealing gasket (2), a through hole (9) and a groove (10) are formed on the surface of the fixing ring (8), a through groove (11) is formed at the bottom of the groove (10), and a connecting rod (13) is disposed in the through groove (11); and The clamping ring (12) is arranged inside the air duct (1).

2. The online sealing device for a double-layer sealed spiral air duct according to claim 1 is characterized in that: The sealing gasket (2) is located between the two groups of air ducts (1), and extension rings (4) are fixed at both ends of the sealing gasket (2), and the extension rings (4) are inserted into the interior of the air ducts (1).

3. The online sealing device for a double-layer sealed spiral air duct according to claim 2 is characterized in that: The fixing ring (8) is fixed to the end of the air duct (1), the through hole (9) is located at the top of the slot (10), and a screw rod (3) is inserted into the through hole (9), and a ring groove (6) is provided on the surface of the screw rod (3).

4. The online sealing device for a double-layer sealed spiral air duct according to claim 3 is characterized in that: A rotating ring (7) is provided on the surface of the annular groove (6). The rotating ring (7) can rotate on the surface of the annular groove (6). A supporting block (5) is fixed on the surface of the rotating ring (7).

5. The online sealing device for a double-layer sealed spiral air duct according to claim 4 is characterized in that: The supporting block (5) rotates along with the rotating ring (7). When the screw rod (3) is inserted into the through hole (9), the supporting block (5) is located in the slot (10), and the supporting block (5) is supported on the surface of the connecting rod (13).

6. The online sealing device for a double-layer sealed spiral air duct according to claim 5, characterized in that: The end of the connecting rod (13) is connected to the clamping ring (12), and the clamping ring (12) moves along with the connecting rod (13). After the clamping ring (12) moves, the clamping ring (12) and the air duct (1) are clamped on the surface of the extension ring (4).

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