Splicing sealing structure of ventilating duct

Abstract

The invention relates to the technical field of splicing sealing structures, and provides a splicing sealing structure of a ventilating duct, which is large in sealing contact area, good in sealing reliability, long in service life, good in use flexibility and time-saving and labor-saving in operation. The splicing sealing structure comprises two angle iron rings and two ventilating ducts, an inner sealing assembly and an outer sealing assembly. The two angle iron rings are connected to the side walls of the two ventilating ducts correspondingly, the two angle iron rings are connected with gradual change rings correspondingly, the inner sealing assembly comprises four lining strip frames, every two adjacent head-to-tail lining strip frames of the four lining strip frames are connected through a corner sleeve. The four lining strip frames are connected with front wedge-shaped push strips and rear wedge-shaped push strips, the outer sealing assembly comprises four outer corner sealing sleeves, and every two adjacent outer corner sealing sleeves in the four outer corner sealing sleeves are connected through an outer adjusting sleeve. A plurality of tension springs are connected between every two adjacent outer corner sealing sleeves in the four outer corner sealing sleeves.

Description

technical field [0001] The invention relates to the technical field of splicing and sealing structures, in particular to a splicing and sealing structure of ventilation ducts. Background technique [0002] As we all know, the splicing and sealing structure of ventilation ducts is an auxiliary sealing communication device used for communicating with each other between two adjacent ventilation ducts among multiple ventilation ducts, and at the same time realizing the sealing between the two ventilation ducts. [0003] The splicing and sealing structure of the existing ventilation duct usually includes a rubber sealing ring and two angle iron rings. A plurality of connection holes are symmetrically opened on the two angle iron rings. The rubber sealing ring is arranged between the two angle iron rings. When in use, connect the two angle iron rings to the two ventilation pipes that need to be connected to each other, then insert the rubber sealing ring between the two angle iron...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned existing technical solutions can realize the splicing and sealing of two ventilation ducts, relying solely on the rubber sealing ring between the two angle irons makes the area of ​​the sealing contact surface smaller and the sealing reliability is poor. With the passage of time, the rubber sealing ring will also age, which is likely to cause seal failure, and the installation and construction need to insert multiple bolts into the connecting holes one by one for installation, and the operation is laborious

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