CN101705739A - Ventilating and rain-baffling device free of motive power - Google Patents
Ventilating and rain-baffling device free of motive power Download PDFInfo
- Publication number
- CN101705739A CN101705739A CN200910306979A CN200910306979A CN101705739A CN 101705739 A CN101705739 A CN 101705739A CN 200910306979 A CN200910306979 A CN 200910306979A CN 200910306979 A CN200910306979 A CN 200910306979A CN 101705739 A CN101705739 A CN 101705739A
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Abstract
The invention discloses a ventilating and rain-baffling device free of motive power, which is characterized by comprising a base unit, a side-baffling unit and a top-baffling unit, wherein the base unit comprises at least one base plate; the base plate is provided with a lower plate body part and a higher plate body part which is higher than the lower plate body part; the side-baffling unit comprises at least one side baffling plate; the side baffling plate is provided with a top part and a bottom communicating part which are at intervals with the base plate, and a row of water channels are defined by the coordination of the base plate and the top part and the bottom communicating part; the top-baffling unit comprises at least one top baffling plate; the top baffling plate is provided with a side communicating part and an installation part which is higher than the side communicating part; the side communicating part is at intervals with the side baffling plate and is lower than the top part and higher than the bottom communicating part; the side communicating part and the side baffling plate together define at least a first ventilating duct. The side baffling plate of the invention baffles off the rain on the side direction, and leads the ventilation path to present a bending shape, and no water can enter, thus improving rain-proof effect.
Description
Technical field
The present invention relates to a kind of rain-baffling device, be meant a kind of ventilating and rain-baffling device free of motive power especially.
Background technology
What Fig. 1 showed is the crown prince building 11 that prior art is installed on building, and this crown prince building 11 comprises two substrates 111, two gripper shoes 112 of extending from this substrate 111 up, reaches two respectively separately in the plate 113 of fending off of these gripper shoes 112.These substrates 111 are the parts on building roof, and interconnect, and common the cooperation form a roof window mouth 114, and this plate 113 of fending off defines a ventilation opening 115 with these 112 common cooperations of gripper shoe.When general rainy situation, air can be by this roof window mouth 114 and this ventilation opening 115, but when running into the strong rain of high wind, the direction of rain is not only down, and the situations (shown in hollow arrow) of laterally dispersing are in a large number arranged, therefore have partly rain by this ventilation opening 115, and certainly this roof window mouth 114 to fall into building indoor, cause the not good enough deficiency of rainproof effect.
It is a kind of known ventilation installation 12 that Fig. 2 shows, this ventilation installation 12 comprises a substrate 121, an and ventilation turbine 122, this substrate 121 is the parts on building roof, and form a ventilation opening 123, this ventilation turbine 122 rotatably covers in this ventilation opening 123, and has multi-disc blade 124 separately.Hot air can rise by this ventilation opening 123, and passes outdoorly from 124 in these blades, and can drive 122 rotations of this ventilation turbine.When the hot air ascending air was strong inadequately, these ventilation turbine 122 rotations were slow, and rainwater is quite big from the probability that 124 in these blades fall into this ventilation opening 123, the deficiency that also has rainproof poor effect and ventilation block to be limited to.
What Fig. 3 showed is another known rain-baffling device 13, this rain-baffling device 13 comprises that a upright wall 131 and is arranged at the plate 132 of fending off of this wall 131, this wall 131 is the part in iron sheet room, and form a ventilation window 133, and has a high board body part 134 that is higher than this ventilation window 133, this plate 132 of fending off is provided with and is positioned at this high board body part 134, and can keep off the rainwater that vertically falls down.But when running into the strong rain of high wind, a large amount of horizontal rainwater (shown in hollow arrow) can be beaten to this ventilation window 133, has the deficiency of rainproof weak effect equally.
Summary of the invention
The present invention's purpose is promptly providing a kind of ventilating and rain-baffling device free of motive power that can improve rainproof effect.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of ventilating and rain-baffling device free of motive power is characterized in that comprising:
One base unit comprises at least one substrate, and this substrate has a low board body part, and a high board body part that is higher than this low board body part;
One side retaining unit is arranged at this base unit, and comprises at least one side shield, this side shield has the logical portion of the opposite top ends of direction and an end, logical portion is higher than this low board body part at this end, and separately in substrate, and closes altogether to cooperate with substrate and define at least one drain;
One unit of fending off, connect this base unit and this side retaining unit, and comprise at least one plate of fending off, this plate of fending off has the installation portion that the logical portion and of a side is higher than the logical portion of this side, this installation portion and high board body part all are positioned at the same side of side shield, and this side is led to portion separately in this side shield, and is lower than this top ends, and be higher than the logical portion in this end, the logical portion of this side cooperates jointly with this side shield and defines at least one first ventilation stack.
Technical scheme of the present invention can also be further perfect:
As preferably, this base unit comprises two substrates, also comprises two gripper shoes that are arranged at these substrates respectively, and each gripper shoe has the logical portion in an opposite support portion, an end and a top;
This side retaining unit comprises two side shields;
This unit of fending off comprises two blocks of plates of fending off, this plate difference logical portion in this top separately that fends off, and this plate of fending off defines two second ventilation stacks that are higher than this first ventilation stack respectively with common cooperation of the logical portion in this top respectively.
As preferably, the logical portion of the side on this plate of fending off is lower than the height that top ends and the top on this gripper shoe on this side plate washer leads to line between the portion.
As preferably, the side shield of this side retaining unit is spent less than 90 with an angle of this plate of fending off; Angle Q between this substrate and this gripper shoe is between 80 degree are spent to 120.
As preferably, connector and two side connectors at the bottom of this side retaining unit also comprises two, this end connector connects the logical portion in this end and this substrate, this end connector, this substrate define this drain with the logical portion in this end common the cooperation, this side connector connects the logical portion of this side and this side shield, and this side connector, this side portion of leading to cooperates jointly with this side shield and defines first ventilation stack;
This base unit also comprises two roof connectings, and this roof connecting connects the logical portion in this top and this plate of fending off, and this roof connecting, the logical portion in this top define second ventilation stack with this common cooperation of plate of fending off.
As preferably, each substrate of this base unit also has one and connects this high board body part and should hang down the junction plate body of board body part, this high board body part interconnects and forms jointly a roof window mouth that can ventilate, and the support portion, the end of this gripper shoe is arranged at this junction plate body respectively;
Each of this unit of fending off also tool one connecting portion of fending off of plate of fending off, fend off between connecting portion and the logical portion of this side in this in this installation position, and this connecting portion of fending off interconnects.
As preferably, the substrate one of this base unit is uprightly, and the side shield one of this side retaining unit tilts to be connected in this substrate, and the installation portion one of this unit of fending off directly is arranged at this substrate and links to each other with side shield one in the lump.
As preferably, this side retaining unit also comprises an end connector one and a side connector one, this end connector one connects the logical portion one in this end and should hang down board body part one, this end connector one, this substrate one defined this drain one with the logical portion in this end one common the cooperation, this side connector one connects the logical portion one of this side and this side shield one, this side connector, the logical portion of this side cooperates jointly with this side shield and defines this first ventilation stack one, this installation portion one is arranged at this high board body part one, the vent window of this substrate one formation one between this high board body part one and low board body part one, this drain one is lower than this vent window.
As preferably, the installation portion of this unit of fending off is separately in this high board body part, and cooperates jointly with this high board body part and to define second ventilation stack that is higher than this first ventilation stack, and this side shield favours this substrate.
As preferably, this side retaining unit also comprises an end connector and a side connector, this end connector connect the logical portion in this end with should low board body part, this end connector, this substrate define this drain with the logical portion in this end common the cooperation;
This side connector connects the logical portion of this side and this side shield, and this side connector, this side portion of leading to cooperates jointly with this side shield and defines this first ventilation stack;
This plate of fending off also has a main portion of keeping off the rain, and this installation portion connects keep off the rain portion and this side of this master and leads to portion;
This base unit also comprises a roof connecting, and this roof connecting connects this high board body part and this installation portion, and this roof connecting, this high board body part cooperate jointly with this installation portion and define this second ventilation stack.
Based on above-mentioned, ventilating and rain-baffling device free of motive power of the present invention, comprise a base unit, the unit of fending off, one side retaining unit and. this base unit comprises at least one substrate, this substrate has a low board body part, an and high board body part that is higher than this low board body part. this side retaining unit is arranged at this base unit, and comprise at least one side shield, this side shield has the logical portion of an opposite top ends and an end, logical portion is higher than this low board body part at this end, and separately in this substrate, and closing cooperation altogether with this substrate and define at least one drain. this unit of fending off is connected this base unit and this side retaining unit, and comprise at least one plate of fending off, this plate of fending off has the installation portion that the logical portion and of a side is higher than the logical portion of this side, all the position is in the same side of this side shield for this installation portion and this high board body part, and this side is led to portion separately in this side shield, and is lower than this top ends, and be higher than the logical portion in this end, the logical portion of this side cooperates jointly with this side shield and defines at least one first ventilation stack.
Beneficial effect of the present invention is that the side shield of this ventilating and rain-baffling device free of motive power keeps off the side direction rainwater, and allows ventilating path be to bending shape, and can not intake, thereby has improved rainproof effect.
Description of drawings
Accompanying drawing 1-Fig. 3 is the ventilating and rain-baffling device free of motive power of prior art;
Accompanying drawing 4 is a kind of example structure schematic diagrames of the present invention;
Accompanying drawing 5 is second embodiment of the present invention structural representations;
Accompanying drawing 6 is third embodiment of the present invention structural representations;
Description of reference numerals:
2 base units, 21 substrates, 211 low board body part, 212 high board body part, 213 junction plate bodies,
22 gripper shoes, 221 end gripper shoes, the logical portion in 222 tops, 23 roof connectings, 3 sides retaining unit, 31 side shields, 311 top ends, 312 ends, led to portion, 32 end connectors, 33 side connectors, 4 unit of fending off, 41 plates of fending off, 411 sides are led to portion, 412 installation portions, 413 connecting portions of fending off, 51 drain, 52 first ventilation stacks, 53 second ventilation stacks, 61 substrates, one, 611 low board body part one, 612 high board body part one, 613 vent windows, 62 roof connectings, one, 71 side shield one, one, 712 end of 711 top ends logical portion one, 72 end connector one, 73 side connectors one, the 81 logical portion one of plate one, 811 side that fends off, 812 installation portions, one, the 813 main portion of keeping off the rain, 91 drain one, 92 first ventilation stacks, one, 93 second ventilation stack one.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1:
Ventilating and rain-baffling device free of motive power as shown in Figure 4, present embodiment be applicable to and be installed on a building, and this ventilating and rain-baffling device free of motive power comprises a base unit 2, side retaining unit 3 and a unit 4 of fending off.This base unit 2 comprises two identical substrates 21, two gripper shoes 22 that are arranged at this substrate 21 respectively, and two roof connectings 23.This substrate 21 can be the part on the roof of this building, this substrate 21 has the high board body part 212 that a low board body part 211, is higher than this low board body part 211, reach one and connect this high board body part 212 and should hang down the junction plate body 213 of board body part 211, this two high board body part 212 interconnects and forms jointly a roof window mouth 214 that can ventilate.Each gripper shoe 22 has the logical portion 222 in an opposite support portion, an end 221 and a top, and this support portion, end 221 is arranged at this junction plate body 213 respectively.Angle Q between gripper shoe 22 and the substrate 21 spends less than 120 greater than 60 degree, is good about spending with 90.Impact to reduce beam wind, prevent splash.
This side retaining unit 3 is arranged at this base unit 2, and comprises that two are connector 32 at the bottom of the upright side shield 31, two in fact, and two side connectors 33.Each side shield 31 has the logical portion 312 of an opposite top ends 311 and an end, and logical portion 312 is higher than this low board body part 211 at this end, and separately in this substrate 21.This end connector 32 connects the logical portion 312 in this end and this substrate 21, and this end connector 32, this substrate 21 defined a drain 51 with the logical portion in this end 312 common cooperations.
This unit 4 of fending off connects this base unit 2 and this side retaining unit 3, and comprise that two blocks of plate 41. these plates 41 of fending off of fending off have the logical portion 411 of a side, one is higher than the installation portion 412 of the logical portion 411 of this side, reach one and fend off the logical portion 411 of connecting portion 413. these sides separately in this side shield 31, and be lower than this top ends 311, and be higher than the logical portion 312 in this end, this installation portion 412 is positioned at 411 in this logical portion of fend off connecting portion 413 and this side, this two connecting portion 413 of fending off interconnects. this installation portion 412 and this high board body part 212 all the position in the same side of this side shield 31, this side connector 33 connects the logical portion 411 of this side and this side shield 31, this side connector 33, the logical portion 411 of this side cooperates this first ventilation stack, 52. these plates 41 difference logical portions 222 in these tops separately that fend off that define jointly with this side shield 31, this roof connecting 23 connects the logical portion 222 in this top and this plate 41 of fending off, this roof connecting 23, the logical portion 222 in this top and this plate 41 of fending off be common to be cooperated and defines this second ventilation stack 53. that is higher than this first ventilation stack 52
The logical portion 411 of side on this plate 41 of fending off is lower than the height of line between top ends 311 and the logical portion 222 in the top on this gripper shoe 22 on this side plate washer 31, to guarantee curved stream of air.
During the strong rain of high wind, a large amount of horizontal rainwater (shown in hollow arrow) by these side shields 31 retainings down, the rainwater of small part splashes into from these first ventilation stacks 52, but can't pass through these second ventilation stacks 53, and from these drain 51 outflows.Air can pass through this roof window mouth 214, these second ventilation stacks 53, these first ventilation stacks 52, and outside the delivery chamber, this air flow trace presents S type (shown in dotted arrow).
In sum, ventilating and rain-baffling device free of motive power of the present invention presents the S type because of the flow trace of air, so rainwater can not splash into indoorly from the track of air, adds that this side shield 31 can keep off down horizontal rainwater, so improved rainproof effect.
What deserves to be mentioned is,, can reach above-mentioned effect as long as this side shield 31 is spent less than 90 with an included angle A of this plate 41 of fending off though present embodiment side shield 31 is upright.
Embodiment 2:
Ventilating and rain-baffling device free of motive power as shown in Figure 5 comprises the unit of fending off, a base unit, side retaining unit and.This base unit comprises a substrate 1, this substrate 1 can be the part of the wall of this building, this substrate 1 is upright in fact, and have the high board body part 1 that a low board body part one 611, is higher than this low board body part 1, an and vent window 613 that is formed between this high board body part 1 and the low board body part 1.
This side retaining unit is arranged at this base unit, and comprises a side shield 1, an end connector 1 and a side connector 1.This side shield 71 favours this substrate 61, and has the logical portion 1 of an opposite top ends 1 and an end, and logical portion 1 is higher than this low board body part 1 at this end, and separately in this substrate 1.This end connector 1 connect the logical portion 1 in these ends with should low board body part 1, the logical portion in this end connector 1, this substrate 1 and this end 1 is common to be cooperated and defines a drain 1 that is lower than this vent window 613.
This unit of fending off connects this base unit and this side retaining unit, and comprises the plate 1 of fending off, and this plate 1 of fending off has the installation portion 1 that the logical portion 1 and of a side is higher than the logical portion 1 of this side.This installation portion 1 and this high board body part 1 be the same side at this side shield 1 all, this installation portion 1 is arranged at this high board body part 1, this side is led to portion 1 separately in this side shield 1, and is lower than this top ends 1, and is higher than the logical portion 1 in this end.This side connector 1 connects the logical portion 1 of this side and this side shield 1, this side connector 1, the logical portion 1 of this side define one first ventilation stack 1 with these one 71 common cooperations of side shield, and air can be by this vent window 613 and this first ventilation stack 1 (shown in dotted arrow).
By this, this side shield 1 can block the rainwater that laterally disperses equally, is difficult for flying among this vent window 613, minority is squeezed into the rainwater of this first ventilation stack 1, can flow down along this side shield 1, and this drain 1 flows out certainly, can promote rainproof effect equally.
Embodiment 3:
Ventilating and rain-baffling device free of motive power as shown in Figure 6, present embodiment is roughly identical with second preferred embodiment, its difference is in the substrate 1 of this base unit has cancelled this vent window 613 (seeing shown in Figure 6), the plate 1 of fending off of this unit of fending off can be the roof of building, this installation portion 1 is separately in this high board body part 1, this plate 1 of fending off also has a main portion 813 of keeping off the rain, this installation portion 1 connects these master portion 813 of keeping off the rain and leads to portion 1 with this side, this base unit also comprises a roof connecting 1, this roof connecting 1 connects this high board body part 1 and this installation portion 1, this roof connecting 1, this high board body part 1 and this installation portion 1 cooperate jointly and define second ventilation stack, one 93. air that are higher than this first ventilation stack 1 and also can flow through this second ventilation stack 1 and this first ventilation stack 1 (shown in dotted arrow) with S type track, by this, can reach above-mentioned effect equally.
The present invention only is described with regard to most preferred embodiment, but can not be interpreted as the restriction to other modes of the invention process, and every further the improvement on basis of the present invention and similar scheme all is considered as protection scope of the present invention.
Claims (10)
1. ventilating and rain-baffling device free of motive power is characterized in that comprising:
One base unit comprises at least one substrate, and this substrate has a low board body part, and a high board body part that is higher than this low board body part;
One side retaining unit is arranged at this base unit, and comprises at least one side shield, this side shield has the logical portion of the opposite top ends of direction and an end, logical portion is higher than this low board body part at this end, and separately in substrate, and closes altogether to cooperate with substrate and define at least one drain;
One unit of fending off, connect this base unit and this side retaining unit, and comprise at least one plate of fending off, this plate of fending off has the installation portion that the logical portion and of a side is higher than the logical portion of this side, this installation portion and high board body part all are positioned at the same side of side shield, and this side is led to portion separately in this side shield, and is lower than this top ends, and be higher than the logical portion in this end, the logical portion of this side cooperates jointly with this side shield and defines at least one first ventilation stack.
2. ventilating and rain-baffling device free of motive power according to claim 1 is characterized in that:
This base unit comprises two substrates, also comprises two gripper shoes that are arranged at these substrates respectively, and each gripper shoe has the logical portion in an opposite support portion, an end and a top;
This side retaining unit comprises two side shields;
This unit of fending off comprises two blocks of plates of fending off, this plate difference logical portion in this top separately that fends off, and this plate of fending off defines two second ventilation stacks that are higher than this first ventilation stack respectively with common cooperation of the logical portion in this top respectively.
3. ventilating and rain-baffling device free of motive power according to claim 1 and 2 is characterized in that:
The logical portion of side on this plate of fending off is lower than the height that top ends and the top on this gripper shoe on this side plate washer leads to line between the portion.
4. ventilating and rain-baffling device free of motive power according to claim 1 and 2 is characterized in that:
The side shield of this side retaining unit and an angle of this plate of fending off are less than 90 degree; Angle Q between this substrate and this gripper shoe is between 60 degree are spent to 120.
5. ventilating and rain-baffling device free of motive power according to claim 1 and 2 is characterized in that:
Connector and two side connectors at the bottom of this side retaining unit also comprises two, this end connector connects the logical portion in this end and this substrate, this end connector, this substrate define this drain with the logical portion in this end common the cooperation, this side connector connects the logical portion of this side and this side shield, and this side connector, this side portion of leading to cooperates jointly with this side shield and defines first ventilation stack;
This base unit also comprises two roof connectings, and this roof connecting connects the logical portion in this top and this plate of fending off, and this roof connecting, the logical portion in this top define second ventilation stack with this common cooperation of plate of fending off.
6. ventilating and rain-baffling device free of motive power according to claim 1 and 2 is characterized in that:
Each substrate of this base unit also has one and connects this high board body part and should hang down the junction plate body of board body part, and this high board body part interconnects and form jointly a roof window mouth that can ventilate, and the support portion, the end of this gripper shoe is arranged at this junction plate body respectively;
Each of this unit of fending off also tool one connecting portion of fending off of plate of fending off, fend off between connecting portion and the logical portion of this side in this in this installation position, and this connecting portion of fending off interconnects.
7. ventilating and rain-baffling device free of motive power according to claim 1 is characterized in that:
The substrate one of this base unit is uprightly, and the side shield one of this side retaining unit tilts to be connected in this substrate, and the installation portion one of this unit of fending off directly is arranged at this substrate and links to each other with side shield one in the lump.
8. ventilating and rain-baffling device free of motive power according to claim 7 is characterized in that:
This side retaining unit also comprises an end connector one and a side connector one, this end connector one connects the logical portion one in this end and should hang down board body part one, this end connector one, this substrate one defined this drain one with the logical portion in this end one common the cooperation, this side connector one connects the logical portion one of this side and this side shield one, this side connector, the logical portion of this side cooperates jointly with this side shield and defines this first ventilation stack one, this installation portion one is arranged at this high board body part one, the vent window of this substrate one formation one between this high board body part one and low board body part one, this drain one is lower than this vent window.
9. ventilating and rain-baffling device free of motive power according to claim 1 is characterized in that:
The installation portion of this unit of fending off is separately in this high board body part, and cooperates jointly with this high board body part and to define second ventilation stack that is higher than this first ventilation stack, and this side shield favours this substrate.
10. ventilating and rain-baffling device free of motive power according to claim 9 is characterized in that:
This side retaining unit also comprises an end connector and a side connector, this end connector connect the logical portion in this end with should low board body part, this end connector, this substrate define this drain with the logical portion in this end common the cooperation;
This side connector connects the logical portion of this side and this side shield, and this side connector, this side portion of leading to cooperates jointly with this side shield and defines this first ventilation stack;
This plate of fending off also has a main portion of keeping off the rain, and this installation portion connects keep off the rain portion and this side of this master and leads to portion;
This base unit also comprises a roof connecting, and this roof connecting connects this high board body part and this installation portion, and this roof connecting, this high board body part cooperate jointly with this installation portion and define this second ventilation stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103069794A CN101705739B (en) | 2009-09-14 | 2009-09-14 | Ventilating and rain-baffling device free of motive power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103069794A CN101705739B (en) | 2009-09-14 | 2009-09-14 | Ventilating and rain-baffling device free of motive power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101705739A true CN101705739A (en) | 2010-05-12 |
| CN101705739B CN101705739B (en) | 2011-09-28 |
Family
ID=42375988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103069794A Expired - Fee Related CN101705739B (en) | 2009-09-14 | 2009-09-14 | Ventilating and rain-baffling device free of motive power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101705739B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912942A (en) * | 2011-08-05 | 2013-02-06 | 黄振利 | Natural cross ventilation device arranged on roofs |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2235041B (en) * | 1989-08-09 | 1993-06-09 | Anchor Building Products Ltd | Ridge vent |
| WO1994028269A1 (en) * | 1993-05-26 | 1994-12-08 | Ean Lawrence Mcdonald | Venting apparatus |
| JP2002356927A (en) * | 2001-05-30 | 2002-12-13 | Jbeck Co Ltd | Hollow water-proof ventilation plate for building, and ventilation device for building using the same ventilation plate |
| CN2570665Y (en) * | 2002-09-17 | 2003-09-03 | 孙士富 | Natural air roof ventilation apparatus |
| CN1236244C (en) * | 2003-03-17 | 2006-01-11 | 肖宏灿 | Roofing draught equipment |
| MY141359A (en) * | 2004-03-30 | 2010-04-16 | Cyberlogic Engineering Sdn Bhd | Ventilation unit |
| JP4365760B2 (en) * | 2004-09-29 | 2009-11-18 | クボタ松下電工外装株式会社 | Ventilation building |
| CN201297733Y (en) * | 2008-09-22 | 2009-08-26 | 孙建和 | Arc ventilator |
| CN201531089U (en) * | 2009-09-14 | 2010-07-21 | 黄振利 | Power-free ventilation rain shielding device |
-
2009
- 2009-09-14 CN CN2009103069794A patent/CN101705739B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912942A (en) * | 2011-08-05 | 2013-02-06 | 黄振利 | Natural cross ventilation device arranged on roofs |
| CN102912942B (en) * | 2011-08-05 | 2015-01-21 | 黄振利 | Natural cross ventilation device arranged on roofs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101705739B (en) | 2011-09-28 |
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