CN207378171U - A kind of heatproof Circular ventilation door - Google Patents

Abstract

A kind of heatproof Circular ventilation door including door body, sets the blade of solid matter, a piece of blade in the center is rotatablely connected by shaft and door body, while is connected between blade by universal driving shaft from top to bottom in the door body；The every blade includes the first blades and the second blades, on first blades set there are one, two or more arcuate structures, and the first blades arcuate structure and the second blades are also equipped with arcuate structure, the first blades and each arcuate structure of the second blades wrap a transmission shaft simultaneously；The connection of adjacent blades is connected by the mode that a sub- blade arc structure of upper blade and a sub- blade arc structure of lower blade wrap a transmission shaft simultaneously, the first elastic sealing element is provided between the blade and the door body, upper and lower two are also provided with the first elastic sealing element between adjacent blades and blade；Second blades are arranged on each arcuate structure of blades and wrap transmission shaft.

Description

A kind of heatproof Circular ventilation door

Technical field

The utility model is related to the air passages valve such as a kind of electric power, environmental protection, building more particularly to a kind of heatproof air doors.

Background technology

For heatproof air door when product carries out fire resistance experiment, the degree of protection of fire resisting is high.High temperature lower wind door blade exists The problem of deformation, there are some shortcomings for the heatproof air door produced before domestic enterprise so that air door when fire resistance is tested, by In the extensional of blade, the air door of especially big specification, blade is longer, and elongation is big, and blade can push up air door outline border so that Deformable blade, air leakage rate check are unqualified.

The air doors such as existing butterfly do not solve this problem.The four-bar linkage structure of pressure balance air door, the door leaf of two pectinid doors Front face area is equal, and the pressure size acted on two pectinid doors is equal, and mine negative pressure is made to cancel out each other by quadric chain, Reach pressure balance.Air door is automatically closed by the additional counterweight that increases to realize.Advantage is opening force small (opening force and wind pressure Size and Orientation is unrelated), and it is two-way every wind, without setting reverse throttle again.Typical Circular ventilation door is distinguished by title latus rectum is changed, product rule Lattice have 18 kinds of Dg100-Dg1400 etc. by (74DD), drawing label DD4101-DD4118.

But current air door product fire resistance is not good enough, it is impossible to reach the degree of protection of fire resisting.Mainly high temperature lower wind door There is deformation and extend in washer.If blade and air door gap are increased to meet blade extension, but leaking out at ambient temperature Amount is big, and cannot meet the testing requirements of the inleakage under environment temperature, forms contradiction.This is suddenly asked for the industry with what is solved Topic.

Utility model content

Purpose of utility model：In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of heatproof circle wind Door, it is big to avoid under high temperature length of blade extension, air door be stuck when closing and blade extension after caused blade bending etc. lack Point, and inleakage meets national examination criteria under conditions of high temperature and room temperature.

Technical solution：A kind of heatproof Circular ventilation door including door body, is provided with the blade of solid matter from top to bottom in the door body, The a piece of blade in the center is rotatablely connected by shaft and door body, while is connected between blade by universal driving shaft；It is described every Piece blade includes the first blades and the second blades, set on first blades there are one, two or more arcs Structure (Ω types), and the first blades arcuate structure and the second blades are also equipped with arcuate structure, the first blades and the The each arcuate structure of two blades wraps a transmission shaft simultaneously；The connection of adjacent blades is a cotyledon by upper blade The mode that one sub- blade arc structure of piece arcuate structure and lower blade wraps biography (connection) moving axis simultaneously connects, institute It states and the first elastic sealing element is provided between blade and the door body, upper and lower two are also provided between adjacent blades and blade One elastic sealing element；The shaft is fixedly mounted on by blade rack in door body, and is set between the blade rack and blade It is equipped with the 2nd elastic sealing element.Second blades are arranged on each arcuate structure of blades and wrap transmission shaft.

Further, it is provided with executing agency in the shaft of one of blade.First elastic sealing element is leaf Piece seals reed or wraps up strip straight reed of reed or riveting of the section of blade for S-shaped on blade.

Further, second elastic sealing element seals reed for stent.The thickness of the stent sealing reed (11) For 0.2-0.5mm..

Further, the second sealing reed is using stainless steel plate material, thickness 0.03-0.05mm.

Further, the stent sealing reed is using stainless steel, thickness 0.2-0.5mm.

Further, the executing agencies such as handle are provided in the shaft of one of blade.

By changing the structure of blade air door is overcome to leak out and the shortcomings of deformable blade, sealing reed is set on blade Or S type inserted sheets, at ambient temperature or under high temperature, due to spring stress deformation, inleakage is low, deformable blade very little, blade The intensity of width also has certain booster action, and the blade of the structure is produced in batches convenient for air door, and process velocity is fast, completely Meet inleakage country examination criteria.

When the number of the blade is single, the thickness of the blade is 2-3mm, and the shape of the blade is a Ω Type.

The blade uses all standing blade using half mulching blade or blade.

Advantageous effect：A kind of heatproof Circular ventilation door provided by the utility model, due to the blade include the first blades and Second blades are provided with two or more arcuate structures on first blades, and second blades are arranged at On each arcuate structure of blades, therefore blade strength is big under high temperature, high temperature deformation very little.Under environment temperature, blade under high temperature Between inleakage very little.Because existing throttle torque is larger, original structure air door action frequency is more, and it is big to generate deformable blade, existing air door After being repeated several times and testing, deformable blade very little.By changing the structure of blade Circular ventilation door is overcome to leak out and deformable blade etc. Shortcoming, due to spring stress deformation, inleakage is low, deformable blade very little, and the intensity in width of blade direction also has certain reinforcement Effect, the blade of the structure are produced in batches convenient for Circular ventilation door, and process velocity is fast, fully meets inleakage country examination criteria.

Description of the drawings

Fig. 1 is door body structure schematic diagram；

Fig. 2 is the schematic diagram of the present embodiment, is also the Longitudinal cross section schematic of Fig. 1；

Fig. 3 show the second elastic sealing element stent sealed structural representation.

Specific embodiment

The utility model will be further described below with reference to the accompanying drawings.Wherein, 1 is door body, and 2 be blade, and 21 be first Blades, 22 be the second blades, and 23 be the first elastic sealing element, and 3 be shaft, and 6 be blade rack, and 61 be the second elastic packing Part, 62 be copper sheathing.

As shown in Figs. 1-3, a kind of heatproof Circular ventilation door is provided with more than one from top to bottom including door body 1, in door body 1 Blade 2, the number of blade is 3 in the present embodiment, and an intermediate blade is elongated, and there are two right one left arcs of arc. And 2 one right arcs of blade are rotatable in door body 1 by shaft 3, while by linkage mechanism, (package is driven between blade 2 Axis) it is driven to connect；Blade 2 includes the first blades and the second blades, itself sets arcuate structure on the first blades, and the Two blades arcs are arranged on each arcuate structure, on the first blades on the second blades of the second blades edge or riveting； Shaft is fixedly mounted on by blade rack in door body, and the second elastic sealing element is provided between blade rack and blade.

As shown in figure 3, the second elastic sealing element seals reed for stent.Stent sealing reed is mounted on the inside of door body.Branch The thickness of frame sealing reed is 0.2-0.5mm.Material is 304 stainless steels, and leakage rate is small, good airproof performance.Stent seals reed Setting solve the extension of length of blade direction high temperature.

Executing agency is provided in the shaft of one of blade.The executing agency can be swing handle or driving electricity Machine.The open and close of valve are operated and controlled by the executing agency of air door.

First elastic sealing element is that runner sealing reed material is 304 stainless steels, and runner sealing reed is arranged on blade edge On edge, it is exceeded exceeded with inleakage caused by deformable blade under high temperature to solve inleakage under room temperature.

Blade using half mulching blade either blade using all standing blade half mulching blade pressure runner sealing reed or All standing blade presses runner sealing reed；Such setting can be with the intensity of reinforced blade.

Upper and lower two are provided with the first elastic sealing element between adjacent blades and blade.First elastic sealing element is close for blade Seal reed.Impeller clearance is small under room temperature, under high temperature, and inleakage is low；The structure is produced in batches convenient for Circular ventilation door, and process velocity is fast； The intensity in width of blade direction has certain booster action.

In use, it is rotated by executing agency's rotating shaft 3 come band movable vane piece 2 so that it is mutually rotated between blade 2, into And open air door.During closing, rotated by executing agency's rotating shaft 3 come band movable vane piece 2 so that mutually turn between blade 2 It is dynamic, close air door.

It is mutually rotated between blade 2 so that elastic deformation occurs for sealing reed, and blade continues to move, then so that sealing spring Piece relative motion, still so that being sealed between neighbouring blade 2.As shown in figure 3, due to blade 2 and blade rack it Between be provided with stent sealing reed be enclosed in shaft, in use, pass through stent seal reed 61 so that blade 2 and blade rack Good seal between (stent of copper sheathing 62).

Although the utility model has been disclosed with preferred embodiment as above, so it is not limited to the utility model.This reality It is without departing from the spirit and scope of the utility model, each when that can make with new those of ordinary skill in the art Kind changes and retouches.Therefore, the scope of protection of the utility model is when subject to those as defined in claim.

Claims (5)

1. a kind of heatproof Circular ventilation door, it is characterized in that including door body, the blade of solid matter is set from top to bottom in the door body, it is central A piece of blade is rotatablely connected by shaft and door body, while is connected between blade by universal driving shaft；The every blade includes First blades and the second blades, set on first blades there are one, two or more arcuate structures, it is and described First blades arcuate structure and the second blades are also equipped with arcuate structure, the first blades and each arc knot of the second blades Structure wraps a transmission shaft simultaneously；The connection of adjacent blades is the sub- blade arc structure and inferior leads by upper blade The mode that one sub- blade arc structure of piece wraps a transmission shaft simultaneously connects, and is set between the blade and the door body The first elastic sealing element is equipped with, upper and lower two are also provided with the first elastic sealing element between adjacent blades and blade；The shaft It is fixedly mounted on by blade rack in door body, and the second elastic sealing element is provided between the blade rack and blade；Institute It states the second blades and is arranged on each arcuate structure of blades and wrap transmission shaft.

2. heatproof Circular ventilation door according to claim 1, it is characterised in that：It is provided with and holds in the shaft of one of blade Row mechanism.

3. heatproof Circular ventilation door according to claim 1, it is characterised in that：The straight spring of first elastic sealing element strip Piece.

4. heatproof Circular ventilation door according to claim 1, it is characterised in that：Second elastic sealing element seals spring for stent Piece；Stent sealing reed is provided between blade and blade rack to be enclosed in shaft.

5. heatproof Circular ventilation door according to claim 1, it is characterised in that：The stent seals reed（11）Thickness be 0.2-0.5mm。