Ventilation pipe connector

Abstract

The invention discloses a ventilation pipeline connector which comprises a body. Ends of two vertical sections of the body are inclined to the middle line direction of a horizontal section of the body, two extension sections are arranged at the ends of the two vertical sections of the body and bent towards the direction far away from the middle line of the horizontal section of the body, at least two openings are formed in the extension sections, and elastic metal plates are fixed onto the two vertical sections of the body, are bent towards the direction close to the middle line of the horizontal section of the body and locally cover the openings. Outer side walls of two metal flanges are primarily clamped by the body and the extension sections, the elastic metal plates are shifted to deform and realize secondary clamping, extrusion force decreased from an adhesive portion is compensated by secondary clamping when two metal air pipes recover shapes after deformation, pressure applied to the adhesive portion is kept stable, and cracks or adhesive failure of the adhesion portion is avoided.

Description

technical field [0001] The invention relates to the field of building installation engineering, in particular to a ventilation pipeline connector. Background technique [0002] The ventilation path of the indoor ventilation system of a high-rise building has a great influence on the improvement of air quality. The design of the ventilation path should be such that the outdoor fresh air first enters the main activities and rest places such as the bedroom, and then the air from the kitchen or bathroom is relatively The poor place is discharged to the outside. The basic requirement of the ventilation volume of mechanical ventilation is to meet the fresh air volume required by people's daily life. According to the national regulations of our country, the fresh air volume per person per hour is not less than 30 cubic meters. [0003] The indoor temperature and oxygen content can be adjusted by reasonably arranging the air ducts indoors. When laying air ducts, according to the sp...

AI Technical Summary

Problems solved by technology

In the prior art, the bonded parts of two adjacent metal air ducts are prone to cracks or detachment during use. The reason is that there is a temperature difference between the inside and outside of the metal air ducts when the room is cooling or heating. , so that local deformation occurs between two adjacent metal air ducts due to thermal expansion and contraction, which in turn leads to degumming of the bonded part between the two metal air ducts due to deformation, and the existing air duct clips When the metal air duct flange is clamped, the acting stress generated when the metal air duct itself deforms is not compensated, that is, at the moment when the metal air duct deforms, the air duct clip is also deformed by force, and the bonding part After being squeezed, after the temperature inside and outside the metal air duct is relatively balanced, the metal air duct returns to deformation. A gap is formed, so that the gap between the two metal air ducts increases with the prolongation of the use time, resulting in the airtightness of the air duct pipeline is unstable, which in turn leads to energy waste and reduces the ventilation efficiency of the air duct; for such problems , the applicant designed a connecting piece for the engagement between two adjacent metal air duct flanges, that is, the outer walls of the two metal flanges are initially clamped through the body and the extension section, and then manually Turn the elastic metal plate to make it deform, that is, based on the metal air duct flange clamped by the body, turn the elastic metal to change from inward concave to outward concave, so as to realize the metal air duct flange The secondary clamping, when the deformation between the two metal air ducts is restored after deformation, the reduced extrusion force of the bonding part is compensated by the secondary clamping to ensure that the pressure on the bonding part remains stable , to avoid cracks or degumming of the bonding part, and to ensure the ventilation efficiency of the air duct

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