CN103806816A - Ventilating shutter capable of being automatically closed - Google Patents
Ventilating shutter capable of being automatically closed Download PDFInfo
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- CN103806816A CN103806816A CN201410062527.7A CN201410062527A CN103806816A CN 103806816 A CN103806816 A CN 103806816A CN 201410062527 A CN201410062527 A CN 201410062527A CN 103806816 A CN103806816 A CN 103806816A
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- support
- ventilation shutter
- automatically close
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- 230000005484 gravity Effects 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 claims abstract description 16
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 238000009423 ventilation Methods 0.000 claims description 51
- 238000009434 installation Methods 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000505 pernicious effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 206010017740 Gas poisoning Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000035987 intoxication Effects 0.000 description 1
- 231100000566 intoxication Toxicity 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention discloses a ventilating shutter capable of being automatically closed. The ventilating shutter comprises an outer frame and a plurality of sets of shutter blade assemblies arranged in the outer frame. Each shutter blade assembly in each set comprises a hinge pin, a blade and a support, wherein the blades and the supports are hung below the hinge pins. The ventilating shutter is opened under the gravity effect of the blades and the supports so that air inside and outside a room can circulate. When being affected by external wind of a certain amount, the blades can overcome the gravity effect of the blades and the supports and rotate around the hinge pins to close ventilating holes so that the ventilating shutter can be closed automatically and the strong wind and rain water can be prevented from entering the room. Moreover, the hinge pins are provided with torsion springs, so that the blades do not swing along with the wind below the hinge pins. The ventilating shutter is simple in structure, low in manufacturing cost, convenient to maintain, high in reliability, capable of being automatically closed under the effect of the external wind without a control system, and particularly suitable for being used in bathrooms and kitchens, decorated in a closed mode, in common families.
Description
Technical field
The present invention relates to a kind of shutter, relate in particular to a kind of ventilation shutter that can automatically close.
Background technology
At present, shutter is mainly used in the indoor-outdoor air circulation of Sealed building, especially in bathroom, the places such as kitchen, the circulation of indoor-outdoor air is even more important, shutter of the prior art mainly contains following several: the one, be installed on the shutter on exhaust fan, this shutter could be opened and only can indoor gas be extracted out outdoor in the time that exhaust fan starts, during exhaust fan quits work, room air is in closed state, if directly open gas water heater and take a shower in bathroom because forgetting unlatching exhaust fan, easily there is intoxication accident, but after unlatching exhaust fan, Air Flow in bathroom is accelerated, bring discomfort to bather, especially in the winter time, old man, child is easy to catch cold, the 2nd, the shutter that Artificial Control opens and closes, although can open and close shutter as required, need to manually control, and has brought great inconvenience to people's life, the 3rd, the shutter of stationary blade, although this shutter can play the object of indoor-outdoor air circulation, cannot close shutter when needed, has brought great inconvenience to people's life, the 4th, rolling screen type window shutter, its main effect is sunshade, does not have the object of windproof and rain proof, the 5th, with the shutter of control system, although can realize the function of automatically closing shutter, but because need configure corresponding checkout gear and Vidacare corp etc., cause that manufacturing cost is high, mechanism is complicated, inventor once test of many times manufactures this type of with accurately detecting and motor-driven shutter switching control system, but all cannot normally use in the high humidity such as bathroom, kitchen, the serious place of oil smoke, cause reliability not high, trace it to its cause and be that the aqueous vapor in such place and oil smoke lost efficacy checkout gear, were therefore difficult to be generalized to average family and used.Therefore, can be installed on bathroom and kitchen and can realize the ventilation shutter of automatically closing in the urgent need to a kind of, so that the air of indoor and outdoor can circulate, indoor pernicious gas is discharged, to be prevented the injury of pernicious gas to human body.
Summary of the invention
The present invention is intended to solve above-mentioned mentioned technical problem, provides a kind of simple in structure, low cost of manufacture, easy to maintenance, reliability is high and the ventilation shutter that can automatically close according to external wind without configuration control system.
The present invention realizes by following technical scheme:
A kind of ventilation shutter that can automatically close, comprise window frame and be arranged at some groups of window leaf assemblies in window frame, described window frame comprises housing and is arranged at the inside casing in housing, inside casing is configured with several and described window leaf assembly gravity vent one to one, every group of window leaf assembly includes: be horizontally located in bearing pin on housing and the blade for enclosed ventilation hole, on blade, be provided with support, support casing is loaded on bearing pin and can freely rotates around bearing pin, bearing pin is arranged at the top, front of the windward side of corresponding gravity vent, blade and support are opened gravity vent under self gravitation effect, blade and support be subject to certain external wind do the used time can enclosed ventilation hole.
Further, described every group of window leaf assembly all also comprises and being arranged on housing and for the limited block of limit bracket rotational angle, in case uppermost leaf sheet and inside casing directly clash into.
Further, be also set with torque spring on described bearing pin, the arm of turning round at its two ends is crimped on respectively on support and limited block.
Further, the windward side of described inside casing is installed with and prevents the direct adhesive tape of clashing into mutually with inside casing of blade.
Further, between the bottom of described inside casing and housing, be provided with drainage channel.
Further, the leeward side of described outer frame bottom is also provided with upwardly extending watertight shutter.
Further, described support comprises the body that arranges perpendicular to blade and from the extended installation portion of edge-perpendicular of body, is provided with the pin-and-hole matching with bearing pin on body, and installation portion and blade are connected and fixed; Two, described support is one group, is symmetricly set in the two ends of blade.
Further, the groove that on described blade, punch forming has some the length directions along blade to arrange.
Further, the leeward side of described housing is also provided with building fixing annular protrusion is installed, and annular protrusion is stretched out by the edge of housing.
Further, on described ventilation shutter, be also provided with exhaust equipment.
The invention has the beneficial effects as follows: compared with prior art, the present invention is by some groups of window leaf assemblies are set in housing, and by the blade on every group of window leaf assembly, corresponding gravity vent on inside casing sealed.Blade and support are hung on below bearing pin under self gravitation effect, and are the state naturally drooping, and to open gravity vent, now the air of indoor and outdoor can carry out by the larger space forming between gravity vent and some groups of window leaf assemblies the air circulation of indoor and outdoor.In the time that ventilation shutter is subject to active force that larger external wind effect and this external wind produce and can overcomes the self gravitation of blade and support, blade and support start to rotate around bearing pin, and be to rotate towards the leeward side direction of blade, when blade forwards to when perpendicular with the axis of gravity vent, blade seals gravity vent, and now no matter outside wind-force greatly also can not pass ventilation shutter from gravity vent again.In the time that above-mentioned external wind reduces gradually, the self gravitation of blade and support is greater than the used time of doing of external wind, and blade and support start to open gravity vent, and now, the air of indoor and outdoor can circulate.In the time that external wind effect disappears, blade and support return to the state naturally drooping gradually.To sum up, ventilation shutter of the present invention can make the air of indoor and outdoor circulate in the time that external wind is gentle breeze, even under windless condition, and also can be by indoor pernicious gas toward the outdoor concentration that spreads, reduces indoor pernicious gas; In the time that acquiring a certain degree, external wind can automatically close ventilation shutter, and control without artificial or electrical control system, be particularly suitable for the bathroom in ordinary residence, the use in kitchen, the comfortableness when generation of the accident that can effectively guard against gas poisoning and raising bather take a shower.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is ventilation shutter schematic diagram of the present invention;
Fig. 2 is the window frame schematic diagram in Fig. 1;
Fig. 3 is that blade and the support A-A in Fig. 1 analyses and observe enlarged diagram;
Fig. 4 is the B-B sectional view under the ventilation shutter closed state in Fig. 1;
Fig. 5 is the B-B sectional view under the ventilation shutter open mode in Fig. 1;
Fig. 6 is the C place enlarged diagram in Fig. 5;
Fig. 7 is that the ventilation shutter in Fig. 5 increases the schematic diagram after annular protrusion;
Fig. 8 is the schematic diagram that ventilation shutter in Fig. 1 and exhaust equipment are used in conjunction with.
The specific embodiment
For ease of describing, the natural wind that the windward side in the present embodiment is defined as building outside directly blows a side of hitting to ventilation shutter 1, otherwise is leeward side.
The ventilation shutter that can automatically close 1 as shown in Fig. 1-Fig. 6, it comprises window frame 3 and is arranged at some groups of window leaf assemblies 2 in window frame 3, window frame 3 comprises housing 32 and is arranged at the inside casing 33 in housing 32, inside casing 33 is configured with several gravity vents 30, gravity vent 30 is corresponding one by one with window leaf assembly 2, i.e. one group of corresponding gravity vent 30 of window leaf assembly 2, window leaf assembly 2 is for opening or enclosed ventilation hole 30.Inside casing 33 plays the effect that increases housing 33 intensity, and under the state in window leaf assembly 2 enclosed ventilation holes 30, makes the better tightness of ventilation shutter 1, to improve the noise control of ventilation shutter 1, rainproof and capability of anti-wind.
Every group of window leaf assembly 2 includes bearing pin 22, support 21 and the blade 20 of the following stated.
Bearing pin 22 is horizontally located in housing 32, and be arranged on the top, front of the windward side of gravity vent 30, the axis that is bearing pin 22 should be higher than the top of corresponding gravity vent 30, dotted line shown in Figure 6 is the top of gravity vent 30, bearing pin 22 should be located at position more than this dotted line, so that do the used time at external wind F, the support 21 that is hung on bearing pin 22 bottoms can successfully be with moving vane 20 that gravity vent 30 is sealed.
Do the used time for preventing blade 20 being subject to larger external wind F, blade 20 occurs to clash into fiercely with the windward side of inside casing 33, can set firmly and prevent the direct adhesive tape 4 of clashing into mutually with inside casing 33 of blade 20 at the windward side of inside casing 33, impact force with buffering blade 20 to inside casing 33, and install after adhesive tape 4, can also during in closed state, play noise control, rainproof, anti-wind action at ventilation shutter 1.
Do the used time for preventing blade 20 being subject to larger external wind F, blade 20 occurs to clash into fiercely with the windward side of inside casing 33, can also be at the limited block 24 of the interior slewing area that limit bracket 21 is set of housing 32, so that the blade 20 being installed on support 21 can not occur to clash into fiercely with inside casing 33.For further strengthening crashproof effect, can also on bearing pin 22, be set with torque spring 23, the arm of turning round at its two ends is crimped on respectively on support 21 and limited block 24, so that external wind F driven vane 20 and support 21 are in the time that bearing pin 22 rotates, not only to overcome both gravity of blade 20 and support 21, also to overcome two of torque spring 23 and turn round the moment of torsion that arm produces, increase the impact force that can play buffering blade 20 after torque spring 23 and hit inside casing 32, and make the support 21 and the blade 20 that are hung on bearing pin 22 belows do the used time at less external wind F, can below bearing pin 22, not produce and rock.
When above-mentioned adhesive tape 4, limited block 24 and torque spring 23 is combined with, its technique effect is better.
For making blade 20 can overcome support 21 under the effect of external wind F and the gravity of self rotates around bearing pin 22, blade 20 is preferably the comparatively frivolous material of employing, therefore, can be by the groove 214 that some length directions along blade 20 of punch forming arrange on blade 20, to increase the rigidity of blade 20 self.
Because blade 20 is frivolous material, himself rigidity is poor, and a support 21 can be respectively set on the two ends of blade 20, and two supports 21 are symmetrical arranged, to strengthen the rigidity of window leaf assembly 2.Certainly,, when the material that rigidity is larger if adopt is made blade 20, also can only in the centre position of blade 20, a support 21 be only set.Support 21 comprises the body 211 that arranges perpendicular to blade 20 and the extended installation portion 212 of edge-perpendicular from body 211, on body 211, be provided with the pin-and-hole 213 matching with bearing pin 22, so that support 21 can be hung on bearing pin 22 and can be connected with blade 20, installation portion 212 is connected and fixed by connected mode and the blade 20 of the routines such as riveted joint, welding.
Install for saving material and being convenient to, bearing pin 22 can be arranged to be installed on respectively two segments of the left and right sides in housing 32, its length can meet hanging support 21 and torque spring 23 is installed, but two segments need guarantee axis and can coincide, so that be hung on blade 20 and the support 21 energy normal rotation of bearing pin 22 belows.
For preventing that rainwater from infiltrating ventilation shutter 1, can arrange drainage channel 34 between the bottom of inside casing 33 and housing 32.Be specially, between the lowest position of inside casing 33 and the inner side of housing 32, leave less gap, the rainwater of being convenient to infiltrate inside casing 33 is discharged ventilation shutter 1 by drainage channel 34, and the cross section of air exhaust passage 34 is very narrow and small, therefore leak out also very little, can ignore.
For preventing that rainwater from infiltrating ventilation shutter 1, can also upwardly extending watertight shutter 31 be set in the leeward side edge of housing 32 bottoms, prevent that the rainwater that infiltrates inside casing 33 from flowing in building from ventilation shutter 1.
When above-mentioned drainage channel 34 uses together with watertight shutter 31, its technique effect is better.
For ease of being arranged on building, the leeward side of housing 32 can also be provided with building fixing annular protrusion 35 is installed, and annular protrusion 35 is stretched out by the edge of housing 32, forms flange, for with the interior metope of building position fixing, can be referring to Fig. 7.
In addition, when ventilation shutter 1 of the present invention uses in relatively airtight building, a ventilation shutter 1 can be respectively set on the relative wall of building, so that the inside and outside air of building forms convection current, produce better technique effect.
Above embodiment is only not limited in order to technical scheme of the present invention to be described, does not allly depart from any modification of spirit and scope of the invention or is equal to replacement, and it all should be encompassed in the scope of technical solution of the present invention.
Claims (10)
1. the ventilation shutter that can automatically close, comprise window frame and be arranged at some groups of window leaf assemblies in window frame, it is characterized in that, described window frame comprises housing and is arranged at the inside casing in housing, inside casing is configured with several and described window leaf assembly gravity vent one to one, every group of window leaf assembly includes: be horizontally located in bearing pin on housing and the blade for enclosed ventilation hole, on blade, be provided with support, support casing is loaded on bearing pin and can freely rotates around bearing pin, bearing pin is arranged at the top, front of the windward side of corresponding gravity vent, blade and support are opened gravity vent under self gravitation effect, blade and support be subject to certain external wind do the used time can enclosed ventilation hole.
2. a kind of ventilation shutter that can automatically close according to claim 1, is characterized in that, described every group of window leaf assembly all also comprises and being arranged on housing and for the limited block of limit bracket rotational angle, in case uppermost leaf sheet and inside casing directly clash into.
3. a kind of ventilation shutter that can automatically close according to claim 2, is characterized in that, is also set with torque spring on described bearing pin, and the arm of turning round at its two ends is crimped on respectively on support and limited block.
4. a kind of ventilation shutter that can automatically close according to claim 1, is characterized in that, the windward side of described inside casing is installed with and prevents the direct adhesive tape of clashing into mutually with inside casing of blade.
5. a kind of ventilation shutter that can automatically close according to claim 1, is characterized in that, between the bottom of described inside casing and housing, is provided with drainage channel.
6. a kind of ventilation shutter that can automatically close according to claim 1, is characterized in that, the leeward side of described outer frame bottom is also provided with upwardly extending watertight shutter.
7. a kind of ventilation shutter that can automatically close according to claim 1, it is characterized in that, described support comprises the body that arranges perpendicular to blade and from the extended installation portion of edge-perpendicular of body, on body, be provided with the pin-and-hole matching with bearing pin, installation portion and blade are connected and fixed; Two, described support is one group, is symmetricly set in the two ends of blade.
8. a kind of ventilation shutter that can automatically close according to claim 1, is characterized in that, on described blade, punch forming has the groove that some the length directions along blade arrange.
9. a kind of ventilation shutter that can automatically close according to claim 1, is characterized in that, the leeward side of described housing is also provided with building fixing annular protrusion is installed, and annular protrusion is stretched out by the edge of housing.
10. a kind of ventilation shutter that can automatically close according to claim 1, is characterized in that, is also provided with exhaust equipment on described ventilation shutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410062527.7A CN103806816B (en) | 2014-02-24 | 2014-02-24 | A kind of ventilation shutter that can automatically close |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410062527.7A CN103806816B (en) | 2014-02-24 | 2014-02-24 | A kind of ventilation shutter that can automatically close |
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| Publication Number | Publication Date |
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| CN103806816A true CN103806816A (en) | 2014-05-21 |
| CN103806816B CN103806816B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410062527.7A Expired - Fee Related CN103806816B (en) | 2014-02-24 | 2014-02-24 | A kind of ventilation shutter that can automatically close |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879044A (en) * | 2015-05-29 | 2015-09-02 | 黄全 | Window capable of automatically adjusting ventilation degree |
| CN105546129A (en) * | 2016-01-28 | 2016-05-04 | 江苏爵格工业设备有限公司 | Rainproof and anti-shockwave valve |
| CN106049771A (en) * | 2016-07-31 | 2016-10-26 | 桂林理工大学 | Inductive automatic hole opening and closing wind resistance eave |
| CN106356105A (en) * | 2016-11-10 | 2017-01-25 | 上海核工程研究设计院 | Non-kinetic exhaust cover for nuclear power plants |
| CN106409358A (en) * | 2016-11-10 | 2017-02-15 | 上海核工程研究设计院 | Passive air exhausting device of nuclear power plant |
| CN106409356A (en) * | 2016-11-10 | 2017-02-15 | 上海核工程研究设计院 | Nuclear power plant passive overflow exhaust device |
| CN109441315A (en) * | 2018-11-30 | 2019-03-08 | 常熟市海鑫船舶机械制造有限公司 | Pneumatic weather tight shutter peculiar to vessel with gas-water separation function |
| CN109665064A (en) * | 2019-01-15 | 2019-04-23 | 江苏扬帆船舶设备有限公司 | It is a kind of can shock wave resistance Pneumatic shutters |
| CN110567003A (en) * | 2019-06-04 | 2019-12-13 | 华帝股份有限公司 | Integrated kitchen |
| CN111006347A (en) * | 2019-12-23 | 2020-04-14 | 邵阳学院 | A smart home ventilation window that uses air flow to achieve sealing |
| CN111161896A (en) * | 2020-01-16 | 2020-05-15 | 江苏华洋新思路能源装备股份有限公司 | A non-automatic self-adjusting water blocking exhaust device |
| CN111256749A (en) * | 2020-02-28 | 2020-06-09 | 杭州鲁尔物联科技有限公司 | Bridge fault azimuth detection device |
| CN111713303A (en) * | 2020-07-07 | 2020-09-29 | 唐建桥 | A garden care and maintenance device and its maintenance method |
| CN111779408A (en) * | 2020-07-10 | 2020-10-16 | 广州湾格岛家具有限公司 | Intelligent window and door auxiliary device capable of being automatically closed after power failure in thunderstorm and rainy days |
| CN111894433A (en) * | 2020-08-11 | 2020-11-06 | 张家港江苏科技大学产业技术研究院 | A retractable door and window reinforcement device |
| WO2020228439A1 (en) * | 2019-05-16 | 2020-11-19 | 杨东佐 | Unidirectionally swinging linkage shutter, linkage shutter skylight roof, and shutter blades |
| CN112923385A (en) * | 2021-02-13 | 2021-06-08 | 郁雅芬 | Based on double-deck stainless steel chimney tripe rain insensitive device |
| CN113154544A (en) * | 2021-04-25 | 2021-07-23 | 珠海格力电器股份有限公司 | Protection device of air outlet equipment, air conditioner and protection control method of air conditioner |
| CN115788954A (en) * | 2023-01-30 | 2023-03-14 | 江苏永胜海洋工程有限公司 | Air volume adjusting door device |
| CN120100300A (en) * | 2025-03-24 | 2025-06-06 | 华夏新能源(中山)有限公司 | Protective ventilation windows with electric function |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879044A (en) * | 2015-05-29 | 2015-09-02 | 黄全 | Window capable of automatically adjusting ventilation degree |
| CN105546129B (en) * | 2016-01-28 | 2018-08-14 | 江苏爵格工业设备有限公司 | A kind of rain-proof shock wave resistance valve |
| CN105546129A (en) * | 2016-01-28 | 2016-05-04 | 江苏爵格工业设备有限公司 | Rainproof and anti-shockwave valve |
| CN106049771A (en) * | 2016-07-31 | 2016-10-26 | 桂林理工大学 | Inductive automatic hole opening and closing wind resistance eave |
| CN106356105A (en) * | 2016-11-10 | 2017-01-25 | 上海核工程研究设计院 | Non-kinetic exhaust cover for nuclear power plants |
| CN106409356A (en) * | 2016-11-10 | 2017-02-15 | 上海核工程研究设计院 | Nuclear power plant passive overflow exhaust device |
| CN106409358A (en) * | 2016-11-10 | 2017-02-15 | 上海核工程研究设计院 | Passive air exhausting device of nuclear power plant |
| CN109441315A (en) * | 2018-11-30 | 2019-03-08 | 常熟市海鑫船舶机械制造有限公司 | Pneumatic weather tight shutter peculiar to vessel with gas-water separation function |
| CN109441315B (en) * | 2018-11-30 | 2024-06-04 | 常熟市海鑫船舶机械制造有限公司 | Marine pneumatic weather-tight shutter structure with gas-water separation function |
| CN109665064A (en) * | 2019-01-15 | 2019-04-23 | 江苏扬帆船舶设备有限公司 | It is a kind of can shock wave resistance Pneumatic shutters |
| WO2020228439A1 (en) * | 2019-05-16 | 2020-11-19 | 杨东佐 | Unidirectionally swinging linkage shutter, linkage shutter skylight roof, and shutter blades |
| CN110567003A (en) * | 2019-06-04 | 2019-12-13 | 华帝股份有限公司 | Integrated kitchen |
| CN111006347A (en) * | 2019-12-23 | 2020-04-14 | 邵阳学院 | A smart home ventilation window that uses air flow to achieve sealing |
| CN111161896A (en) * | 2020-01-16 | 2020-05-15 | 江苏华洋新思路能源装备股份有限公司 | A non-automatic self-adjusting water blocking exhaust device |
| CN111256749A (en) * | 2020-02-28 | 2020-06-09 | 杭州鲁尔物联科技有限公司 | Bridge fault azimuth detection device |
| CN111256749B (en) * | 2020-02-28 | 2021-11-26 | 杭州鲁尔物联科技有限公司 | Bridge fault azimuth detection device |
| CN111713303A (en) * | 2020-07-07 | 2020-09-29 | 唐建桥 | A garden care and maintenance device and its maintenance method |
| CN111779408A (en) * | 2020-07-10 | 2020-10-16 | 广州湾格岛家具有限公司 | Intelligent window and door auxiliary device capable of being automatically closed after power failure in thunderstorm and rainy days |
| CN111894433A (en) * | 2020-08-11 | 2020-11-06 | 张家港江苏科技大学产业技术研究院 | A retractable door and window reinforcement device |
| CN111894433B (en) * | 2020-08-11 | 2022-04-26 | 张家港江苏科技大学产业技术研究院 | A retractable door and window reinforcement device |
| CN112923385A (en) * | 2021-02-13 | 2021-06-08 | 郁雅芬 | Based on double-deck stainless steel chimney tripe rain insensitive device |
| CN113154544A (en) * | 2021-04-25 | 2021-07-23 | 珠海格力电器股份有限公司 | Protection device of air outlet equipment, air conditioner and protection control method of air conditioner |
| CN115788954A (en) * | 2023-01-30 | 2023-03-14 | 江苏永胜海洋工程有限公司 | Air volume adjusting door device |
| CN120100300A (en) * | 2025-03-24 | 2025-06-06 | 华夏新能源(中山)有限公司 | Protective ventilation windows with electric function |
| CN120100300B (en) * | 2025-03-24 | 2026-01-27 | 华夏新能源(中山)有限公司 | Protective ventilation window with electric function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103806816B (en) | 2016-04-27 |
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