Auxiliary opening mechanism for flue check valve

A technology of check valve and flue, which is applied in the direction of lift valve, valve device, mechanical equipment, etc. It can solve the problems that the windshield cannot be opened and the windshield is bonded to the shell, so as to achieve the concentration of force and the smoothness of the valve plate. Enhanced opening force and convenient opening

Pending Publication Date: 2018-01-26
MARSSENGER KITCHENWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Long-term use of this common flue exhaust check valve will still cause the windshield to stick to the shell, and the windshield cannot be opened under the same wind force

Method used

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  • Auxiliary opening mechanism for flue check valve
  • Auxiliary opening mechanism for flue check valve
  • Auxiliary opening mechanism for flue check valve

Examples

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Embodiment Construction

[0039] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0040] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6Shown is an auxiliary opening mechanism for a flue check valve. The flue check valve includes a casing 1 and two valve pieces 2. The casing 1 has an annular sealing edge 3, and the valve piece 2 is hinged on the casing 1. Inside, the edge of the valve plate 2 can be attached to or separated from the annular sealing edge 3. The housing 1 has an air inlet end and an air outlet end. The auxiliary opening mechanism includes a swing rod 5. The valve plate 2 includes an upper body 2a and a lower body. The plate body 2b, the upper plate body 2a and the lower plate body 2b are fixed, the upper plate body 2a is close to the air inlet end, the valv...

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PUM

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Abstract

The invention provides an auxiliary opening mechanism for a flue check valve, and belongs to the technical field of pipeline structures. The auxiliary opening mechanism solves the problem that valve plates cannot be opened after long-term use in the prior art. The auxiliary opening mechanism for the flue check valve comprises a shell and a plurality of valve plates; an annular sealing baffle edgeis arranged in the shell; the valve plates are hinged in the shell; the edges of the valve plates can be attached to or can be separated from the annular sealing baffle edge; and the shell is providedwith an air inlet end and an air outlet end. The auxiliary opening mechanism is characterized by comprising swing rods; an installation cavity is formed in each valve plate; the swing rods are arranged in the installation cavities in a swinging mode; openings I and openings II are formed in the sides, close to the air inlet end, of the valve plates; an elastic pad is arranged on each opening I; one ends of the swing rods make contact with the elastic pads; the openings II are formed in the edges of the valve plates; and when the elastic pads deform to drive one ends of the swing rods to swing, the other ends of the swing rods can penetrate out of the openings II to abut against the annular sealing baffle edge. The auxiliary opening mechanism has the advantage of enhancing the opening force of the valve plates.

Description

technical field [0001] The invention belongs to the technical field of pipeline structures and relates to an auxiliary opening mechanism for a flue check valve. Background technique [0002] In kitchens that use longitudinal public flue gas ducts, in order to prevent oily fumes from flowing back into the kitchen, a check valve is generally installed between the integrated stove or range hood and the public flue gas duct to block them. Most of the non-return valves still have oil fume backflow and poor smoke exhaust, which cannot be eradicated. [0003] The sealing working principle of the existing check valve: the valve disc in the check valve that plays a sealing role is opened by the exhaust wind force, and when the exhaust wind force disappears, it is closed under the action of the valve disc's self-gravity and return spring force. General principle analysis will find that the opening force and closing force in this structure are mutually contradictory and a pair of acti...

Claims

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Application Information

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IPC IPC(8): F16K1/22F16K1/36F16K1/226
Inventor 顾正东李欣黄安奎周岗扬张建明胡浩
Owner MARSSENGER KITCHENWARE CO LTD
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