CN1769806A

CN1769806A - Dry type ventiduct system with helical structure pipe and reflux-proof and fireproof throttle

Info

Publication number: CN1769806A
Application number: CN 200510109705
Authority: CN
Inventors: 张乙钟
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-13
Filing date: 2005-09-13
Publication date: 2006-05-10
Anticipated expiration: 2025-09-13
Also published as: CN1333215C

Abstract

The invention discloses a bell-type microwave oven, which comprises the following parts: oven body, electric control chamber, cooking chamber, centrifugal fan, vent motor, convective fan and fan motor, wherein the electric control chamber is set on one side of oven body; the cooking chamber is set on the other side of oven body, which connects the first through-hole with the oven body space; the centrifugal fan and vent motor are set on the oven body back; the convective fan and fan motor are set between one side wall of cooking chamber and inner wall, which makes the hot air produce convection in the cooking chamber through the first through-hole; the segregation plate with the second through-hole is set in the space of convective fan and fan motor, which segregates the space of convective fan and fan motor from the back space for outside air in the oven body. The invention can discharge the inside air and introduce the outside air, which radiates fluidly to prevent fan motor from damaging due to overheat to the maximum degree.

Description

The dry type ventiduct system that helical structure pipe and anti-adverse current and fireproof throttle are arranged

Technical field

The present invention relates to the facility of the exhaust duct system of residential building, a kind of anti-adverse current on the spiral blast pipe and dry type ventiduct system of fireproof throttle of being located at.

Background technology

Usually, in apartment houses such as apartment or company's dwelling house, it mainly is kitchen and bathroom that peculiar smell or air-polluting place take place easily, thus those contaminated airs need be discharged rapidly, with the living environment of Creating Comfort.General on the gas range in kitchen, the enclosure that communicates with ventilation shaft is set, and the ventilation shaft end on bathroom ceiling or sidewall is provided with ventilation fan.Usually the ventilation shaft of each floor vertically links to each other with the blast pipe of each building, and be provided with the perforated board that prevents that insect from invading and can exhaust on the top of the blast pipe that communicates with roof, and on the roof, be provided with exhaust fan, form the air flue of discharging kitchen and bathroom air thus, on ventilation shaft, also on dry type ventiduct, be provided with and cut off inhalant anti-adverse current of air and fireproof throttle simultaneously.

In routine techniques, building, the building blast pipe that links to each other with ventilation shaft with kitchen and bathroom and be located at exhaust fan in the ventilation shaft and all adopt the mode of discharging naturally by the effect of increasing of hot-air.Because of not having wind to cause exhaust fan not rotate or causing down current more for a long time, then can't discharge foreign flavor indoors or contaminated air smoothly, and cause phenomenon to kitchen or bathroom adverse current because of weather forms low pressure.Therefore the air stream as discharging with on the anti-adverse current of above-mentioned dry type ventiduct and fireproof throttle is installed in blast pipe links to each other the ventilation shaft, and by operation enclosure and ventilation fan makes the cut-out plate give folding in natural discharge mode.

The cut-out plate of anti-adverse current and fireproof throttle inside is made by the lighter synthetic resin material of weight, and is identical with the ventilation shaft internal diameter, is arranged on the centrifugal shaft that can rotate up and down.When not discharging air, be in closing state, it can flow and easily rotation and folding by air.Yet because the area broad of plate very easily adheres to oil stain or dust, therefore long-time the use is easy to cause its weight to strengthen, thereby even if exist air to flow, cuts off the plate folding that also can't make progress.

In a single day in view of the above, developed recently and passed through power folding cut-out plate by force,, be installed in the wall of kitchen or toilet, just be difficult to when breaking down keep in repair to improve the device of exhaust efficiency.Out of order cut-out plate is if open state, though can exhaust, also reversible flow, even when fire, become flare and scurry into mouth; If close state, then the indoor pollution air can't be discharged.Therefore one of air throttle needs can prolong the product effective scheme in service life.

In addition, in the residential building of brick mix structure even frame structure, be directly to build Fang Jing in the routine techniques, or make the rectangular tube or the pipe of four faces, as shown in Figure 5 with sheet material into about 1 square meter space with brick perpendicular to the discharge duct of each floor.Assembly 3 is that the banded sheet material raw material that will curl with the coil form blocks by being a bit larger tham the length of side among Fig. 5, and it is curved one section body 30 of three arris, limit, two ends butt joint, dual-side all outwards is bent into continuous two right angles and forms flange part 31 on four faces, the flange part 31 of a plurality of assemblies 3 is relatively closely connected, add connection fittings 33 among the connecting hole 32a as " " shape fixed iron piece 32 on each flange part 31, and add clamping iron plate 34 at adjacent flange 31 middle parts, to strengthen engaging force, vertically continue length in this way and form.This structural requirement will be used to make the sheet metal strip of rectangle pipe arrangement, be cut into certain interval, so the monomer length of pipe arrangement assembly be subjected to the width restriction of sheet metal strip raw material.As mentioned above, above-mentioned a plurality of pipe arrangement assemblies its length that should continue by the combination between band wide end boss portion and the flange part forms, and installation process is extremely complicated.Be used as the strip width of assembly when narrow relatively, as the passage of same height, they are just many in conjunction with flange part, thereby have increased set-up time and mounting cost greatly.

Summary of the invention

The purpose of this invention is to provide a kind of dry type ventiduct system that helical structure pipe and anti-adverse current and fireproof throttle are arranged, by the operation of power or non-power, improve exhaust efficiency, prevent peculiar smell or air-polluting adverse current, fire can also stop air-flow to scurry row when taking place; The helical structure pipe that pipe-line system adopts, space availability ratio height, saving mounting cost and time, and the length of pipe is unrestricted.

The dry type ventiduct system that helical structure pipe and anti-adverse current and fireproof throttle are arranged, hood that above the gas range in kitchen, is provided with and ventilation fan, and the ventilation fan that is provided with on bathroom ceiling or sidewall links to each other with blast pipe through ventilation duct respectively, it is characterized in that with air throttle be directly installed on the blast pipe of pipe end intersection of ventilating on, be positioned at the frame that communicates with it, passing a plurality of axles that cut off plate vertically is inserted on the frame two side, load bar is with chain link between each and coupling bar polyphone, the load bar lower end has magnetic switch to communicate with the Switching Power Supply of ventilation fan, and the frame outside is provided with the connector that communicates with ventilation shaft; Comprise ventilation shaft and adopt the pipe of helical structure perpendicular to the pipe-line system of the exhaust duct of each floor, utilization is grown up in wide sheet metal strip, the opposing face that it is characterized in that the dual-side of band is the right angle that bends continuously in opposite directions, and the band of coiled coil flanging, make the overlapping combination of two right-angle sides and then form the pipe of the helical structure that length do not limit.

The present invention has the dry type ventiduct system of helical structure pipe and anti-adverse current and fireproof throttle to be applicable to the kitchen and the bathroom of residential building, and air throttle is directly installed on the blast pipe that intersects with ventilation shaft, for the erector has created operating condition extremely easily.When air throttle did not use, a plurality of cut-out plates on the centrifugal shaft are vertically folded mutually set up facade by being attached to, and reduces to cut off the area that adheres to oil stain on the plate to greatest extent, has effectively reduced the attachment weight such as dust that long-term use causes.In addition, by connecting the load bar and the magnetic switch that is connected power supply that cuts off plate axle head chain link, can finish the cut-out plate folding operation of power or non-power.When service time, long cut-out plate can not lean on the natural airflow folding, utilize electric power allow again and cut off the plate normal operation, effectively prolong the service life of product, particularly when breaking out of fire, cut off plate closing and can block the air-flow of ventilation shaft, stop the intensity of a fire to shift, thereby effectively improved the flameproof effect of air throttle.In addition, no matter be the pipeline that discharge duct that the ventilation shaft that joins with ventilation fan or connect towers in the building, building all can adopt helical structure to make.The pipeline of this structure owing to saved the connector of traditional rectangular pipe, makes sheet metal strip can form circle or oval pipe continuously, is not subjected to length restriction.Because of the tube wall of this structure is overlapping the forming of right-angle side that embeds mutually, and faying face is not in one plane, own fixed support effect, and the performance of lateral pressure resistant power is stronger.This structural tube not only production cost is low, more saved take up room, set-up time and mounting cost.Effective erection space of helical pipe is big, can be used as air conditioner piping etc., and space degree of applying flexibly is high, and purposes is very extensive.

Description of drawings

Fig. 1 is the user mode exemplary plot of native system dry type ventiduct;

Fig. 2 a is that the native system blast pipe combines schematic diagram with air throttle;

Fig. 2 b is the cutaway view of air throttle among Fig. 2 a;

Fig. 3 is the cut-out plate structure schematic diagram of combination;

Fig. 4 a is the closure state schematic cross-section of air throttle;

Fig. 4 b is the opening schematic cross-section of air throttle;

Fig. 5 is the rectangular tube overall schematic that the tradition ventilation pipeline is used;

Fig. 6 a is helical structure round tube application state figure and a binding site sectional view in the native system;

Fig. 6 b is helical structure elliptical tube figure and binding site sectional view;

Fig. 7 is the schematic cross-section that the round screw thread pipe uses in exhausting duct;

Fig. 8 a is the syndeton schematic diagram of helical structure pipe;

Fig. 8 b is the connecting band schematic diagram in conjunction with helix tube;

The specific embodiment

Below in conjunction with accompanying drawing present technique is elaborated: the anti-adverse current and the fireproof throttle of dry type ventiduct, be used for the apartment or connect the kitchen of an apartment house and contaminated airs such as peculiar smell that the bathroom takes place rapidly to outdoor discharge.On the gas range in kitchen, air capture is set with hood and ventilation fan for the ventilation shaft link to each other with blast pipe, and on bathroom ceiling or sidewall, ventilation fan is set then for the ventilation shaft that links to each other with blast pipe, see Fig. 1: it is characterized in that air throttle 1 is directly installed on the blast pipe 16, with the kitchen or the dry type ventiduct in the toilet 7 of apartment, company's apartment house, with 16 vertical linking to each other of blast pipe.On the blast pipe 16 of two pipe intersections, the arc air-vent 13 of slightly relatively managing 16 centers of circle is arranged, design can make the discharge air-flow enter along exhaust wall is curved like this, and it is mobile to paste tube wall, thereby form the air-flow that spirals and rise, help the unobstructed discharge of contaminated air, see Fig. 2 a, Fig. 2 b: the frame 2 as the air throttle housing is arranged outward, box-shaped rack 2 one sides have four stiles and blast pipe 16 vertical combinations, air throttle communicates with the arc air-vent 13 at this position, see Fig. 4 a, 4b: establish connector 15 on the frame 2 opposite side front covers, for linking to each other with ventilation shaft 7, in the mouth promptly from the contaminated air ostium 14 of indoor discharge.A plurality of rectangles of air throttle 1 are cut off on the plate 3 wide ends all centrifugal shaft 9, vertically be inserted on frame 2 two sides, see Fig. 3: the hole 6 that the axle 9 that frame 2 exposes outside passes on the chain link 8 is connected on the same load bar 5 respectively cutting off plate 3 below second by coupling bar 10 by coupling bar 10 combinations, chain 8 other ends, the lower end of load bar 5 is outstanding, be fixed with magnetic switch 4 thereon, be communicated with power supply, see Fig. 2 a, Fig. 2 b.

Above-mentioned air throttle can also not use chain link and load bar, but with the pivot hinge on vertically disposed a plurality of cut-out plates and the frame in the frame, to utilize the air-flow of discharging, plate is cut off in folding.

In order to discharge contaminated air and peculiar smell to blast pipe 16 by ventilation shaft 7, and the adverse current of blocking-up contaminated air and peculiar smell, cut off the long limit of plate 3 one sides and be thin lug boss 11, equidistant when being vertically connected on the above-mentioned frame 2, the long limit of the lug boss of upper plate and lower plate is overlapping, thus frame 2 inside are divided into the partition form; Fig. 4 a, 4b are divided into three equal parts with it, out-of-date as the circulation of air of discharging, above-mentioned vertically disposed a plurality of cut-out plates 3 can not be subjected to the fault of magnetic switch 4 or the influence that whether moves, and rotate naturally and folding with non-power, and gas stream of pollution is passed through easily.When 3 service times of above-mentioned cut-out plate too for a long time, get can not freely rotate the time because of the oil stain adhesion, in the air capture that opens or closes kitchen or bathroom during with hood and ventilation fan, simultaneously power supply is supplied to above-mentioned magnetic switch 4, to drive and operation magnetic switch 4, make load bar 5 rotate, rotate up and down simultaneously a plurality of cut-out plates 3 that stand on the vertical line up and down.Together inter-adhesive because of oil stain for preventing a plurality of cut-out plates 3, cut-out plate 3 upsides closely contacting with last plate lug boss 11 then are provided with a plurality of embossing projections 12 into one.

Yet it is fashionable when having the reserve motion air-flow to return by blast pipe 16, the above-mentioned lug boss 11 that is provided with the cut-out plate 3 of centrifugal shaft 9 fastens mutually with another cut-out plate 3 and is supported for vertical, make that frame 2 is inner to become closed states, to prevent the contaminated air adverse current or to cut off the intensity of a fire when the breaking out of fire and move.

In the exhaust duct of vertical perforation, use the rectangle pipe arrangement in the conventional art, see Fig. 5 with floor.

The spiral tube structure that pipe-line system of the present invention adopted, select the sheet metal strip pipe arrangement material of growing up for use in wide, see the enlarged drawing at the position 41 among Fig. 6 a: a side 40b who it is characterized in that band has the bending of continuous two homonymy right angles, and another side 40a has four right angle bendings at opposing face, when the band coiled coil that bending edge will be arranged along its length, the right angle of dual-side 40a and 40b is embedded mutually and pressed and overlapped is integrated when forming sealing binding site 41, the pipe arrangement band just becomes the pipe 40 or the oval pipe 20 of continuous crisping.Be the fixed in space mode shown in Fig. 6 a: when the metope suspension of indoor canopy was installed, the pipe 40 that length is delayed was placed between the lip-deep support brandreth 42 of indoor canopy.Shown in Figure 7 is that pipe 40 binding site 41 contacts with architecture pipe wall 43, has saved support.

Another embodiment of the design: the helical tube body 20 among Fig. 6 b is curled into the coil form, grows up to form by oval pipe shape continuous crisping in wide metal band type pipe arrangement material, and is inboard for transmitting the passage that air is used at helical tube body 20.

Fig. 6 b is identical with the structure of Fig. 6 a pipe, like this applicable to rectangular air exhaust passage in the building.Above-mentioned body 20 is that the reverse side bending right angle 20b in the bending right angle 20a in 1 week of rotation that moves ahead and back row 1 week of rotation is overlapping, close with coiling case of bending mutual wedge pressure sheepshank and to form overlapping part 21, outer peripheral face along body 20 is outstanding, thereby, and play body 20 effect of the enhancing support of rectangles on four sides of keeping with body 20 sealings.

Fig. 8 a is that the helical structure pipe connecting portion that uses in ventilation shaft and the blast pipe road in the native system is showed: helical structure pipe 40 is pipe arrangements that batch production is produced, and makes with the above-mentioned helical structure of band, joint portion 41 in the enlarged drawing on the left of seeing among the figure.When installing at the scene, when the long pipe arrangement of standard is connected, see right side enlarged drawing among the figure: adjacent two isometrical helical structure pipe 40 inwalls add liner 45 and connecting band 44, and with rivet 46 three are fixed as one.The shape of connecting band 44 is seen Fig. 8 b: there is the joint portion at the two ends of band, available bolting, and there is the arc fin at the middle part of band, avoids two pipes along directly contact, and pipe is had supporting role, and the length of connecting band 44 equates with helical structure pipe 40.

Claims

1, the dry type ventiduct system that helical structure pipe and anti-adverse current and fireproof throttle are arranged, hood that above the gas range in kitchen, is provided with and ventilation fan, and the ventilation fan that is provided with on bathroom ceiling or sidewall links to each other with blast pipe through ventilation duct respectively, it is characterized in that the anti-adverse current of dry type ventiduct and fireproof throttle are directly installed on the blast pipe with the pipe end intersection that ventilates, the outer organic frame of valve, the a plurality of axles that cut off the wide end of plate vertically are inserted on the frame two side, load bar is with chain link between each and the hinged polyphone of coupling bar, and the load bar lower end has magnetic switch to communicate with the Switching Power Supply of ventilation fan; Comprise ventilation shaft and what adopt perpendicular to the pipe-line system of the exhaust duct of each floor is the pipe of helical structure, select the sheet metal strip of growing up for use in wide, the opposing face that it is characterized in that the dual-side of band is continuous in opposite directions a plurality of right angles bending, and the band of coiled coil flanging, make the overlapping combination in two knuckle limits and then form the pipe of the helical structure that length do not limit.

2, the dry type ventiduct system that helical structure pipe and anti-adverse current and fireproof throttle are arranged according to claim 1, it is characterized in that having on frame one side as the air throttle housing arc-like rows of being partial to the blast pipe center of circle to portal, the frame homonymy has the vertical combination of stile and blast pipe, air throttle to portal with the arc-like rows at this position and communicate, establish connector on the frame opposite side front cover, for linking to each other with ventilation shaft.

3, the dry type ventiduct system that helical structure pipe and anti-adverse current and fireproof throttle are arranged according to claim 1, it is characterized in that air throttle can also not use chain link and load bar, but with the pivot hinge on vertically disposed a plurality of cut-out plates and the frame in the frame, with the air-flow by discharging, plate is cut off in folding.

4, the dry type ventiduct system that helical structure pipe and anti-adverse current and fireproof throttle arranged according to claim 1 is characterized in that a plurality of rectangles of air throttle cut off plates, in its long limit one side thin lug boss is arranged, and the relative edge a plurality of projections is arranged.

5, the dry type ventiduct system that helical structure pipe and anti-adverse current and fireproof throttle are arranged according to claim 1, it is characterized in that in a side bending of continuous two homonymy right angles being arranged, and the opposing face of another side there are four right angles bendings as the flanging of the band of helical structure pipe.

6, the dry type ventiduct system that helical structure pipe and anti-adverse current and fireproof throttle are arranged according to claim 1, it is characterized in that helical structure pipe can make the long pipe arrangement of standard by above-mentioned helical structure batch production with band, when at the scene the long helix tube of standard being connected, adjacent two isometrical helix tube inwalls add liner and connecting band, and are fixed as one with rivet.

7, the dry type ventiduct system that helical structure pipe and anti-adverse current and fireproof throttle are arranged according to claim 6, the shape that it is characterized in that connecting band: there is the joint portion at the two ends of band, be used to place set bolt, there is the arc fin at the middle part of band, and the length of connecting band equates with helix tube.