CN104930796B - Gas-tight door - Google Patents
Gas-tight door Download PDFInfo
- Publication number
- CN104930796B CN104930796B CN201410108893.1A CN201410108893A CN104930796B CN 104930796 B CN104930796 B CN 104930796B CN 201410108893 A CN201410108893 A CN 201410108893A CN 104930796 B CN104930796 B CN 104930796B
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- Prior art keywords
- door body
- door
- gas
- air
- air bag
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/021—Sliding doors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The present invention provides a kind of gas-tight door, is related to CA Storage for Fruits and Vegetables field.Wherein, the gas-tight door includes the door body with heat-insulating property, the door body is covered at an air-conditioned cold store doorway doorframe, the door body and air-conditioned cold store doorway the first plane door frame contact and the second plane door frame contact with ground, air bag and sealing strip are disposed between wherein described door body and the first plane doorframe, between the second plane doorframe on the door body and ground, and the air bag and the sealing strip are arranged in the inner side surrounding groove of the door body；When the air bag is inflated to a preset pressure, the air bag extrudes the sealing strip, and the sealing strip is in sealing contact with the second plane doorframe on the first plane doorframe and ground respectively.The gas-tight door ensures the overall air-tightness of air-conditioned cold store building enclosure by the rush to summit sealing strip of low-temperature resistance highly expanded high flexibility of the air bag built in the surrounding on the inside of door body, improves the preservation and freshness time of fruits and vegetables.
Description
Technical field
The present invention relates to CA Storage for Fruits and Vegetables field, more particularly to a kind of gas-tight door.
Background technology
The air-conditioned cold store of fruits and vegetables is used for fresh-retaining preserving, i.e. fruit and vegetables is used for the one of gas regulation Storage in cold bank form after adopting
Kind preservation technology.It is state-of-the-art storage technique at present in the world, represent the development of current fruit vegetables storing direction and
Main flow, it is the new technology that fruit and vegetable food must use during agriculture industrialization is realized, while is also that international emphasis is helped
Hold project.It is refrigerated in high temperature（More than 0 DEG C）Under the conditions of, it is domestic using air conditioning apparatus control ring in the enclosed structure of sealing
Gas componant, that is, reduce oxygen concentration, control carbon dioxide gas content, remove ethylene gas, suppress fruits and vegetables to reach and live
The respiratory intensity of body, it is allowed in normal and low-level respiratory metabolism state, and then extends storage fruit and vegetable phase and goods
Frame sells purpose.
The manufacturer of air conditioning apparatus and device is still simple production mostly, does not formulate an effective standard and side
Method, this has virtually laid many troubles and inconvenience to production process.
The content of the invention
It is an object of the invention to provide a kind of gas-tight door, imbalance of pressure and temperature occurs during solving air-conditioned cold store operation
External sealing valve blow-by pressure release problem caused by fluctuation.
In order to solve the above problems, the embodiment of the present invention provides a kind of gas-tight door, including the door body with heat-insulating property, its
In,
The door body is covered at an air-conditioned cold store doorway doorframe, the door body and the first plane of air-conditioned cold store doorway doorframe
Contact and the second plane door frame contact with ground, wherein between the door body and the first plane doorframe, the door body and ground
Air bag and sealing strip are disposed between the second plane doorframe in face, and the air bag and the sealing strip are set
It is placed in the inner side surrounding groove of the door body；
When the air bag is inflated to a preset pressure, the air bag extrudes the sealing strip, the sealing strip
It is in sealing contact with the second plane doorframe on the first plane doorframe and ground respectively.
Wherein, the both sides of the one end of the door body away from ground are respectively arranged with roller devices, and the door body is away from ground
The both sides of one end be respectively arranged with roller devices, the roller devices are mounted on the round metal thick stick above door body.
Wherein, door body is driven to move horizontally using the roller devices, the door body at least has two in motion process
Kind state：
During first state, the doorway of the air-conditioned cold store is completely covered in the door body, and the roller of the door body both sides enters institute
State in the first groove on round metal thick stick, the door body is sagging, engages the door body；During the second state, the air-conditioned cold store doorway
It is completely exposed to outside the door body, the roller of the door body both sides enters in the second groove on the round metal thick stick, locking
The door body.
Wherein, the door body is provided with guider close to the one end on ground, and the guider is used to make door body flat
The plumbness with ground is kept during shifting movement.
Wherein, the door body vertical direction sets multiple door body locking devices, the door body locking device and described first
Attachment structure on plane doorframe is engaged carries out locking to the door body.
Wherein, the door body locking device is hook.
Wherein, gas-charging connection is sealedly connected with the air bag, the gas-charging connection passes through gas ducting and charge and discharge
Air valve connects.
Wherein, the pressure registration device being tightly connected with the air bag is also set up in the door body, the pressure is shown
Counting apparatus is used to show the pressure in the air bag.
Wherein, the Air filling and discharging valves and the pressure registration device are arranged at the side in the horizontal direction of the door body
On edge, and away from the pre-determined distance of ground one.
Wherein, the inner side of the door body and outside are provided with the door opener for switching the gas-tight door.
Wherein, the sealing strip is rubber integral foam.
The above-mentioned technical proposal of the present invention at least has the advantages that：
It is swollen by the low-temperature resistance height of rushing to summit of the air bag built in the surrounding on the inside of door body in the gas-tight door of the embodiment of the present invention
The sealing strip of swollen high flexibility ensures the overall air-tightness of air-conditioned cold store building enclosure, during avoiding air-conditioned cold store operation pressure occurs
External sealing valve blow-by pressure release problem, ensure that the air-tightness of controlled atmosphere cold door, improves fruit caused by unbalance and temperature fluctuation
The preservation and freshness time of vegetable.
Brief description of the drawings
Fig. 1 represents sectional drawing on the inside of the door body of the gas-tight door of the embodiment of the present invention；
Fig. 2 represents the door body inside structure schematic diagram of the gas-tight door of the embodiment of the present invention；
Fig. 3 represents the sectional drawing of the sealing strip of the gas-tight door of the embodiment of the present invention；
Fig. 4 represents the pressure registration setting position schematic diagram of the gas-tight door of the embodiment of the present invention；
Fig. 5 represents the concrete structure front view of the gas-tight door of the embodiment of the present invention.
Description of reference numerals：
1- door body, 2- grooves, 3- air bags, 4- sealing strips, 6- pressure registration devices, 7- roller devices, 8- are oriented to dress
Put, 9- slides thick stick, 11- door body locking devices, 12- door openers, 30- openings.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
The present invention is simply to produce mostly for the equipment and device in the prior art for fruit and vegetable air-conditioning preservation, air-conditioned cold store
Air-tightness it is not strong the problem of, there is provided a kind of gas-tight door, rushed to summit low-temperature resistance by the air bag built in the surrounding on the inside of door body
The sealing strip of highly expanded high flexibility ensures the overall air-tightness of air-conditioned cold store building enclosure, occurs during avoiding air-conditioned cold store operation
External sealing valve blow-by pressure release problem, ensure that the air-tightness of controlled atmosphere cold door, carries caused by imbalance of pressure and temperature fluctuation
The preservation and freshness time of high fruits and vegetables.
As shown in Figure 1 and Figure 2, the embodiment of the present invention provides a kind of gas-tight door, including the door body 1 with heat-insulating property, its
In,
The door body 1 is covered at an air-conditioned cold store doorway doorframe, the door body 1 and the flush door of air-conditioned cold store doorway first
Frame contact and the second plane door frame contact with ground, wherein between the plane doorframe of the door body 1 and first, the door body 1
It is disposed with air bag 3 and sealing strip 4 between the second plane doorframe on ground, and the air bag 3 and described
Sealing strip 4 is arranged in the inner side surrounding groove 2 of the door body 1；
When the air bag 3 is inflated to a preset pressure, the air bag 3 extrudes the sealing strip 4, the sealing
Bar 4 is in sealing contact with the second plane doorframe on the first plane doorframe and ground respectively.
In the above embodiment of the present invention, the fresh-keeping effect of fruits and vegetables can be improved using the door body 1 with heat-insulating property；And
Between the door body 1 and the first plane doorframe, between the door body 1 and the second plane doorframe, inflation is respectively provided with
Air bag 3 and sealing strip 4, preferably, in order to ensure the air-tightness of corner, the groove of the setting air bag 3 and sealing strip 4
2 be the groove of an insertion；The larger air bag that the air bag can be integrated simultaneously（Ensure door body corner
Air-tightness）, or close to multiple small air bags compositions（It is easy to detect airtight situation, changes air-tightness not in time
Good air bag）.
Preferably, in the above embodiment of the present invention, the sealing strip 4 is rubber integral foam.In the embodiment of the present invention,
Sealing strip 4 has good elasticity, flexibility, is provided simultaneously with stronger stretch capability, resistance to migration, and cold-resistant heat resistance is good.This
In the specific embodiment of invention, using EPDM（EPDM）Rubber integral foam, it is flexible fabulous, can bear -50 DEG C to+
170 DEG C of temperature, meet the requirement of preserving fruit and vegetable utilizing.It should be noted that the sealing strip is not limited to a kind of above-mentioned material, other
It is applicable in embodiments of the present invention with fine elasticity, the flexible and preferable material of obturation effect.
In the specific embodiment of the present invention, in order to ensure the air-tightness of the gas-tight door, do not have at the doorway of above-mentioned air-conditioned cold store
Threshold is set, then sealing structure need to be set on the contact surface on the door body 1 Yu ground, ensure its sealing.
Preferably, as shown in Fig. 2 install fluted 2 on the inside of door body surrounding, and the two sides of groove 2 is formed an angle
Degree, preferably, the angle is less than or equal to 90 °, for engaging the sealing strip 4.
Further, in order to improve the utilization rate of the material of sealing strip 4, the sectional drawing of above-mentioned sealing strip 4 is as shown in figure 3, can
Ensure the sealing strip 5 can with the library doorframe it is in sealing contact in the case of, the shape of sealing strip 4 can be adjusted accordingly, such as
One opening is set in one end that the sealing strip 4 contacts with the air bag 3（Such as the opening 30 in Fig. 3）Deng herein not
Repeat one by one.
In the above embodiment of the present invention, inflated by charge valve to the air bag 2, when the air bag 2 is by institute
State the top of sealing strip 4 and extremely then can guarantee that the library with the first plane doorframe and the second plane doorframe close contact, gas-tight door
Air-tightness, make the preservation and freshness time of fruits and vegetables longer；Wherein, described preset pressure value can obtain according to many experiments data
, it can also be set by user oneself, more hommization.
It is further to be released the gas in the air bag 2 by Air filling and discharging valves, it is necessary to when opening the door, then it is described
Sealing strip departs from air tight contact with the library doorframe or no pressure contacts, then can easily open gas-tight door, facilitate the discrepancy of fruits and vegetables
Storehouse.
In another embodiment of the present invention, as shown in figure 5, the both sides of the one end of the door body away from ground are respectively arranged with rolling
Wheel apparatus 7, the roller devices 7 are mounted on the round metal thick stick 9 above door body.
In the specific embodiment of the present invention, the gas-tight door is arranged to the door of push-and-pull parallel-moving type, including roller devices 7, wherein,
Roller devices 7 are connected by the round metal thick stick 9 being fixed on metope with door body 1, and carry the load of door body 1, roller devices 7
The reciprocating action of the work enabling shutdown of door body 1 is carry along sliding thick stick 9；Wherein, the circle thick stick 9 can also be made of other materials,
Circle thick stick is applicable in embodiments of the present invention made of all materials that can carry the load of door body 1.Circle thick stick 9 is only this hair
Bright preferred embodiment（It is smaller etc. using circle thick stick resistance during push-and-pull door body）, but it is not used in the protection model of the limitation present invention
Enclose, the thick stick that the other shapes used can be configured with the roller devices 7 is applicable in embodiments of the present invention.
Further, the door body is provided with guider 8 close to the one end on ground, and the guider 8 is used to make door
Body is kept and the plumbness on ground during translational motion.
Specifically, being symmetrical arranged a guider 8 with roller devices 7, pass through the cooperation of roller devices 7 and guider 8
Ensure in enabling or door body 1 moves horizontally under plumbness at closing time.
Preferably, in the above embodiment of the present invention, guider 8 is to be arranged on the door body close to the one end on ground
（That is bottom）Slide plate, the slide plate and the bottom are angled, ensure open the door or at closing time door body in plumbness
It is lower to move horizontally, also ensure the air-tightness of the gas-tight door.
In the above embodiment of the present invention, the door body 1 is driven to move horizontally using the roller devices 7, the door body 1
At least there are two states in motion process：
During first state, the doorway of the air-conditioned cold store is completely covered in the door body, and the roller of the door body both sides enters institute
State in the first groove on round metal thick stick, the door body is sagging, engages the door body；During the second state, the air-conditioned cold store doorway
It is completely exposed to outside the door body, the roller of the door body both sides enters in the second groove on the round metal thick stick, locking
The door body.
In the embodiment of the present invention, the groove of the round metal thick stick 9 plays a spacing effect, in order to open the door or close the door
When, the gas-tight door can be fixed on full-gear（First state）Or full off state（Second state）, door body is in a certain shape
It will not be slidably reciprocated during state, ensure the safety of disengaging personnel.In the specific embodiment of the present invention, set on the round metal thick stick 9
3 grooves are equipped with, groove 1 corresponding with the roller devices 7, groove 2 and complete in gas-tight door at gas-tight door fully open position
Closed position groove 3 corresponding with the roller devices 7, groove 4；In actual applications, for reasonable utilization space, material
Deng groove 2 and groove 3 are same groove.It is illustrated below：Assuming that during full-gear, roller 1 is in groove 1, roller 2
In groove 2；Then during full off state, roller 1 is in groove 2（That is groove 3）Interior, roller 2 is in groove 4.It should be noted that should
Groove on round metal thick stick 9 is not limited only to above-mentioned number, can also be set according to the actual demand of user, such as user is wished in pass
The door body is engaged at door state 1/2, then groove can be set in corresponding position, so that the door body engages.
In further embodiment of this invention, as shown in figure 4, the gas-tight door also includes：
The door body vertical direction sets multiple door body locking devices 11, the door body locking device 11 and described first flat
Attachment structure on the doorframe of face is engaged carries out locking to the door body 1.
Wherein, the door body locking device 11 is hook.
In the above embodiment of the present invention, in order that door body 1 and wall or the library coordinate more closely, in door body 1
Multiple door body locking devices 11 are set, and door body locking device 11 coordinates with the attachment structure on wall, such as buckle structure, screw knot
Structure etc., symmetrically arranged multiple door body locking devices 11 are that another side is more loose in order to prevent door body 1 while locking, and make this airtight
Valve blow-by, closed effect is not reached.
General using 4 hooks in the specific embodiment of the present invention, i.e., the both sides side 2 of described door body 1 is symmetrical arranged；
The number of door body locking system described in practical application 11 can determine according to the size of its gas-tight door, be not limited to a fixation
Value.
In the above embodiment of the present invention, gas-charging connection is sealedly connected with the air bag 4, the gas-charging connection leads to
Feed channel is overcharged to be connected with Air filling and discharging valves；
Further, the pressure registration device 6 being tightly connected with the air bag, the pressure are also set up in the door body
Power registration device 6 is used to show the pressure in the air bag.
In the above embodiment of the present invention, in order to accurately hold, whether the gas-tight door is in complete sealed shape
State, a pressure registration device 6 for being used to show inflating air intraluminal pressure is also set up in the door body 1, when the gas-tight door is completely close
When closing, the pressure registration of the pressure registration device 6 should be fixed on a preset value（Can be fluctuated reasonable error）；Wherein, this is pre-
If the big I of value is obtained by many experiments data, it can also be set by user oneself, be not limited to a fixed value.In addition, the pressure
Registration device 6 also can detect the air bag 2 whether gas leakage, if the normal work of the air bag 2, inflation after, should
The registration of pressure registration device 6 is fixed on preset value；If the gas leakage of air bag 2, after inflation, the pressure registration device 6
Registration can be gradually reduced, then now airtight valve blow-by, does not have closed effect, it is necessary to be repaired.
In the above embodiment of the present invention, as shown in figure 4, the Air filling and discharging valves and the pressure registration device 6 are arranged at
On a lateral edges in the horizontal direction of the door body 1, and away from the pre-determined distance of ground one.
Inflated in order to facilitate staff by charge valve for air bag 2, charge valve be arranged on to the lower half of door body,
Away from the pre-determined distance of ground one.More intuitively see the pressure registration of air bag 2 simultaneously, by pressure registration device 6 and charge valve,
Vent valve is placed on nearer position.It should be noted that the specific position of above-mentioned charge valve, vent valve and the pressure registration device
Put only be the embodiment of the present invention preferred embodiment, be not used in and limit its particular location, on the basis of its function is ensured, other
Position is applicable in embodiments of the present invention.
Further, the inner side of the gas-tight door and outside are provided with the door opener 12 for switch gate.
In order to rationally exert oneself when enabling and shutdown, help to open the door, the inner side of gas-tight door and outside set door opener
12；When staff opens the door from the inside, gas-tight door is pushed open by the door opener 12 of inner side, when staff opens the door from the outside
When, push gas-tight door open by the door opener 12 in outside, save the strength of staff, improve efficiency.
The switching process of the gas-tight door of a specific embodiment of the invention is described in detail with reference to Fig. 5：
Door closing procedure：
User is exerted a force by door opener 12 to the door body 1, and two roller devices 7 are along the metal in the door body 1
The slide rail of circle thick stick 9 carries door body and makees shutdown action, and the guider 8 of door body bottom installation ensures that door body is hung down in moving process
Straight horizontal movement；When the air-conditioned cold store doorway is completely covered in door body 1, the roller devices 7 enter on the round metal thick stick 9
Groove, the door body naturally droop, that is, close the door into position；
User fastens four metal hangers, and then the air bag 3 is filled using inflator by Air filling and discharging valves
Gas, when the pressure registration device 6 shows that the pressure reaches preset value, stop inflation, now the sealing strip 4 passes through
The extruding of the air bag 3 is in sealing contact with the second plane doorframe on the first plane doorframe and ground respectively, reaches close
Close effect.
Door opening process：
User is deflated by Air filling and discharging valves to the air bag 3 first, when the pressure registration device 6 display
When the pressure is smaller, user is exerted a force by the door opener 12 to door body 1, and the roller devices 7 in the door body 1 are along the cunning
Rail is moved horizontally, and until the air-conditioned cold store doorway is completely exposed to outside the door body, i.e., the gas-tight door is shown in a fully open operation, this
The groove that Shi Suoshu roller devices 7 enter on the round metal thick stick 9, prevents door body from rocking, and completes to open the door.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (11)
1. a kind of gas-tight door, including the door body with heat-insulating property, it is characterised in that
The door body is covered at an air-conditioned cold store doorway doorframe, the door body and the first plane of air-conditioned cold store doorway door frame contact
And the second plane door frame contact with ground, wherein between the door body and the first plane doorframe, the door body and ground
Air bag and sealing strip are disposed between second plane doorframe, and the air bag and the sealing strip are arranged at
In the inner side surrounding groove of the door body；Wherein, one end that the air bag contacts is provided with one in the sealing strip
Opening；The air bag be close to multiple small air bags；
When the air bag is inflated to a preset pressure, the air bag extrudes the sealing strip, the sealing strip difference
It is in sealing contact with the second plane doorframe on the first plane doorframe and ground.
2. gas-tight door according to claim 1, it is characterised in that the both sides of the one end of the door body away from ground are set respectively
Roller devices are equipped with, the roller devices are mounted on the round metal thick stick above door body.
3. gas-tight door according to claim 2, it is characterised in that drive the door body is horizontal to move using the roller devices
Dynamic, the door body at least has two states in motion process：
During first state, the doorway of the air-conditioned cold store is completely covered in the door body, and the roller of the door body both sides enters the gold
In the first groove on category circle thick stick, the door body is sagging, engages the door body；During the second state, the air-conditioned cold store doorway is complete
Outside the door body, the roller of the door body both sides enters in the second groove on the round metal thick stick, described in locking
Door body.
4. gas-tight door according to claim 1 or 2, it is characterised in that the door body is provided with close to the one end on ground and led
To device, the guider is used to make door body keep during translational motion and the plumbness on ground.
5. gas-tight door according to claim 1, it is characterised in that the door body vertical direction sets multiple door body locking dresses
Put, the door body locking device is engaged with the attachment structure on the first plane doorframe carries out locking to the door body.
6. gas-tight door according to claim 5, it is characterised in that the door body locking device is hook.
7. gas-tight door according to claim 1, it is characterised in that gas-charging connection is sealedly connected with the air bag,
The gas-charging connection is connected by gas ducting with Air filling and discharging valves.
8. gas-tight door according to claim 7, it is characterised in that also set up in the door body and sealed with the air bag
The pressure registration device of connection, the pressure registration device are used to show the pressure in the air bag.
9. gas-tight door according to claim 8, it is characterised in that the Air filling and discharging valves and the pressure registration device are set
In on the lateral edges in the horizontal direction of the door body, and away from the pre-determined distance of ground one.
10. gas-tight door according to claim 1, it is characterised in that the inner side and outside of the door body, which are provided with, to be used for
Switch the door opener of the gas-tight door.
11. gas-tight door according to claim 1, it is characterised in that the sealing strip is rubber integral foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410108893.1A CN104930796B (en) | 2014-03-21 | 2014-03-21 | Gas-tight door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410108893.1A CN104930796B (en) | 2014-03-21 | 2014-03-21 | Gas-tight door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104930796A CN104930796A (en) | 2015-09-23 |
| CN104930796B true CN104930796B (en) | 2017-12-22 |
Family
ID=54118075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410108893.1A Active CN104930796B (en) | 2014-03-21 | 2014-03-21 | Gas-tight door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104930796B (en) |
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| CN105299229A (en) * | 2015-11-01 | 2016-02-03 | 冷光君 | Anti-corrosion box door air and liquid sealing device |
| CN108426413B (en) * | 2018-04-19 | 2021-04-23 | 海尔智家股份有限公司 | Split door body assembly and refrigerator |
| CN108869740A (en) * | 2018-09-11 | 2018-11-23 | 贵州哈雷空天环境工程有限公司 | A kind of gas-flow closure door suitable for pressure vessel |
| CN108999522B (en) * | 2018-09-21 | 2024-04-19 | 佛山市广韩门窗科技有限公司 | Magnetic attraction sealing mute casement window |
| CN110206465A (en) * | 2019-04-14 | 2019-09-06 | 中国城市建设研究院有限公司 | Exclusion seal door |
| CN109990541B (en) * | 2019-04-23 | 2024-04-26 | 绍兴华宝制冷设备有限公司 | Sealed negative pressure freezer |
| CN110206466A (en) * | 2019-05-08 | 2019-09-06 | 中国城市建设研究院有限公司 | Civil air defense constructions and installations hermatic door with air bag |
| CN113883793B (en) * | 2020-07-03 | 2023-01-20 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN112696126A (en) * | 2020-12-29 | 2021-04-23 | 杭州绿恒建材有限公司 | Aluminum-wood composite door and window with heat preservation connecting structure |
| CN113091376B (en) * | 2021-05-14 | 2023-01-24 | 北京惠远明珠科技有限公司 | Intelligent freezer of subregion management |
| CN113503608A (en) * | 2021-07-26 | 2021-10-15 | 深圳市美兆环境股份有限公司 | Virus blocking section exhaust system design |
| CN115265076B (en) * | 2022-09-23 | 2022-12-20 | 南通市海门雪盾冷冻设备有限公司 | Translation formula insulation construction suitable for small-size freezer |
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|---|---|---|---|---|
| CN2911152Y (en) * | 2006-06-13 | 2007-06-13 | 中国人民解放军军事医学科学院卫生装备研究所 | Inflation sealed door |
| CN201159033Y (en) * | 2008-01-29 | 2008-12-03 | 中天高科特种车辆有限公司 | Airtight door |
| CN201521207U (en) * | 2009-09-11 | 2010-07-07 | 宁波市鄞州德科自动门科技有限公司 | Gas-tight door |
| CN203008730U (en) * | 2012-11-30 | 2013-06-19 | 宁波新安东橡塑制品有限公司 | Novel waterproof anti-collision sealing adhesive strip for curtain wall |
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| CN104930796A (en) | 2015-09-23 |
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