CN114233163A - Sealing structure of clean room door body - Google Patents
Sealing structure of clean room door body Download PDFInfo
- Publication number
- CN114233163A CN114233163A CN202111514972.9A CN202111514972A CN114233163A CN 114233163 A CN114233163 A CN 114233163A CN 202111514972 A CN202111514972 A CN 202111514972A CN 114233163 A CN114233163 A CN 114233163A
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- door body
- air bag
- branch
- control valve
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- 238000007789 sealing Methods 0.000 title claims abstract description 56
- 230000000694 effects Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims 1
- 230000003749 cleanliness Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention provides a sealing structure of a clean room door body, which comprises a building door frame and a door body; one side of the door body is pivoted on the door frame through a pivoting shaft; a sealing structure for sealing a gap between the door body and the door frame is arranged between the door body and the door frame; the sealing structure is a sealing air bag arranged on the door body or the door frame. According to the invention, the sealing air bag is arranged between the door body and the door frame, the sealing of the door body part can be realized after the air bag is inflated, and external air is prevented from entering the clean room through the door seam, so that the cleanliness of the clean room is effectively maintained.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a sealing structure used between different grades of clean areas.
Background
With the development of technology, the requirement of clean areas or clean rooms is becoming more and more common. Especially, in a laboratory building with a clean requirement, there are often a plurality of laboratories or clean areas with different clean grades due to process requirements, and each laboratory or clean area is designed to be relatively closed. How to ensure the relative sealing between a single clean room or two adjacent clean areas becomes a problem to be solved by technicians at present.
Disclosure of Invention
The invention aims to provide a sealing structure of a clean room door body, which aims to solve at least one technical problem in the prior art.
In order to solve the technical problem, the invention provides a sealing structure of a clean room door body, which comprises: building door frames and doors;
one side of the door body is pivoted on the door frame through a pivoting shaft;
a sealing structure for sealing a gap between the door body and the door frame is arranged between the door body and the door frame;
the sealing structure is a sealing air bag arranged on the door body or the door frame.
Preferably, the sealing airbag is arranged on the door frame.
Further, the door frame is rectangular, and the sealing air bag is rectangular.
Further, an air curtain is arranged on one side or two sides of the door body.
Further, the air pressure value in the clean area is at least 10Pa higher than the external air pressure value.
Further, the sealed airbag comprises a first airbag, a second airbag and a third airbag;
the second air bag and the third air bag are arranged in the first air bag; in the thickness direction of the door body, the second air bag and the third air bag are arranged side by side at intervals.
Further, the air bag device further comprises an air source for supplying high-pressure air to the first air bag, the second air bag and the third air bag. After the air source is started, the first air bag, the second air bag and/or the third air bag can be expanded, so that a gap between the door body and the window or the crane rail is blocked, and the sealing effect is realized.
Further, the system also comprises a main gas pipeline and a branch gas pipeline; the branch pipeline comprises a first branch, a second branch and a third branch;
the air source is respectively connected with the first air bag, the second air bag and the third air bag through a main air pipeline and the first branch, the second branch and the third branch.
Furthermore, a first control valve, a second control valve and a third control valve are respectively arranged on the first branch, the second branch and the third branch.
Further, the second control valve is an air pressure control valve comprising a second inlet port, a second outlet port, and a second control port; the second inlet end and the second outlet end are connected with the second branch; the second control port is communicated with the first air bag through a second control air path;
the second control valve is a normally closed valve body, and when the air pressure in the first air bag is lower than a set pressure value, the elastic part in the air pressure control valve overcomes the pressure of the second control air circuit to open the second control valve.
Further, the third control valve is a pneumatic control valve including a third inlet port, a third outlet port, and a third control port; a third inlet end and a third outlet end are connected with the third branch; a third control port is communicated with the first air bag through a third control air path;
and the third control valve is a normally closed valve body, and when the air pressure in the first air bag is lower than a set pressure value, an elastic part in the air pressure control valve overcomes the pressure of the third control air path to open the third control valve.
When the first air bag leaks due to external reasons and loses the sealing effect, the second air bag and the third air bag are started to be inflated at the same time, and the door body is sealed after the second air bag and the third air bag swell.
If the first air bag leaks because of the existence of sharp foreign objects, if only one spare air bag exists, the spare air bag is still punctured inevitably after being swelled, and thus the sealing effect cannot be realized. Adopt two spare gasbags that two intervals set up side by side in this application, its two gasbags adopt different branch road air supplies, even there is sharp object at certain fixed position, still is punctured after one of them spare gasbags swells, and another spare gasbags then can guarantee to seal and do not lose efficacy.
Further, the air source is a high-pressure air storage tank or an air pump with an air storage tank.
Further, the air exhaust device further comprises an air exhaust pump body and an air exhaust pipeline, wherein the air exhaust pump body is respectively connected with the first air bag, the second air bag and the third air bag through the air exhaust pipeline and is used for quickly exhausting air in the first air bag, the second air bag and the third air bag before the door body is rolled up.
And the exhaust pipeline comprises three exhaust branches, and the three exhaust branches are respectively provided with a control valve.
By adopting the technical scheme, the invention has the following beneficial effects:
according to the clean room door body sealing structure provided by the invention, the sealing air bag is arranged between the door body and the door frame, the sealing of the door body part can be realized after the air bag is inflated, and external gas is prevented from entering the clean room through the door gap, so that the cleanliness of the clean room is effectively maintained.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a front view of a seal structure provided in embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of the sealed bladder shown in FIG. 1;
FIG. 3 is a schematic view showing the operation of three sealed airbags in embodiment 1;
fig. 4 is a schematic structural view of an inflation/deflation device in embodiment 2 of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be further explained with reference to specific embodiments.
Example 1
As shown in fig. 1, the sealing structure of the clean room door provided by the present embodiment includes: a building door frame 11 and a door body 10; one side of the door body 10 is pivoted on the door frame 11 through a pivoting shaft; a sealing structure for sealing a gap between the door body 10 and the door frame 11 is arranged between the door body and the door frame; the sealing structure is a sealing airbag 100 arranged on the door body 10 or the door frame 11. Preferably, the airbag 100 is disposed on the door frame 11. The door frame 11 is rectangular, and the airbag 100 is rectangular. The air pressure value in the clean area is at least 10Pa higher than the external air pressure value.
As shown in fig. 2, the sealed airbag 100 includes a first airbag Q1, a second airbag Q2, and a third airbag Q3; the second air bag Q2 and the third air bag Q3 are arranged inside the first air bag Q1; the second airbag Q2 and the third airbag Q3 are arranged in parallel at an interval in the thickness direction of the door body 10.
As shown in fig. 3, the present embodiment further includes a gas source QY for supplying high-pressure gas to the first, second and third air bags Q1, Q2 and Q3. After the air source QY is started, the first air bag Q1, the second air bag Q2 and/or the third air bag Q3 can be inflated, so that gaps between the door body 10 and the window or the crane rail are blocked, and a sealing effect is realized.
Further, the present embodiment further includes a main gas line and a branch gas line; the branch gas line comprises a first branch Z1, a second branch Z2 and a third branch Z3; the air source QY is connected with the first air bag Q1, the second air bag Q2 and the third air bag Q3 through a main air pipeline and a first branch Z1, a second branch Z2 and a third branch Z3 respectively.
Further, a first control valve F1, a second control valve F2 and a third control valve F3 are respectively arranged on the first branch Z1, the second branch Z2 and the third branch Z3. The second control valve F2 is a pneumatic control valve including a second inlet port, a second outlet port, and a second control port; the second inlet end and the second outlet end are connected with the second branch Z2; the second control port is communicated with the first air bag Q1 through a second control air passage K2; the second control valve F2 is a normally closed valve, and when the air pressure in the first air bag Q1 is lower than a set pressure value, the elastic member in the air pressure control valve overcomes the pressure of the second control air passage K2 to open the second control valve F2.
And, the third control valve F3 is a pneumatic control valve including a third inlet port, a third outlet port, and a third control port; a third inlet end and a third outlet end are connected with the third branch Z3; a third control port communicates with the first balloon Q1 via a third control pneumatic circuit K3; the third control valve F3 is a normally closed valve, and when the air pressure in the first air bag Q1 is lower than a set pressure value, the elastic member in the air pressure control valve overcomes the pressure of the third control air passage K3 to open the third control valve F3.
When the first air bag Q1 leaks due to external reasons, and the sealing effect is lost, the second air bag Q2 and the third air bag Q3 in the application are simultaneously started to be inflated, and the sealing of the door body 10 is realized after the inflation.
If the first air bag Q1 leaks because a sharp foreign object exists, if only one spare air bag exists, the spare air bag is still punctured inevitably after being expanded, and the sealing effect cannot be realized. Adopt two spare gasbags that two intervals set up side by side in this application, its two gasbags adopt different branch road air supplies, even there is sharp object at certain fixed position, still is punctured after one of them spare gasbags swells, and another spare gasbags then can guarantee to seal and do not lose efficacy.
Wherein, the air source QY is a high-pressure air storage tank or an air pump with an air storage tank.
Further, the air exhaust pump body BF and the air exhaust pipeline are further included, the air exhaust pump body is respectively connected with the first air bag Q1, the second air bag Q2 and the third air bag Q3 through the air exhaust pipeline, and the air exhaust pump body is used for rapidly exhausting air in the first air bag Q1, the second air bag Q2 and the third air bag Q3 before the door body 10 is rolled up. And the exhaust pipeline comprises three exhaust branches, and the three exhaust branches are respectively provided with control valves P1, P2 and P3.
According to the clean room door body sealing structure provided by the invention, the sealing air bag 100 is arranged between the door body 10 and the door frame 11, the sealing of the door body 10 part can be realized after the air bag is inflated, and external gas is prevented from entering the clean room through a door gap, so that the cleanliness in the clean room is effectively maintained.
Example 2
This embodiment is substantially the same as embodiment 1 except that:
as shown in FIG. 4, the present embodiment includes a manual inflator 40 and a manual vent 50, in particular instances, for inflating or venting the first bladder Q1.
The manual inflator 40 includes: a bracket (not shown), an inflator 41, an inflation cam 42, an inflation coil spring 43, and an inflation hand switch 44; the inflation hole of the inflator 41 is connected with the inflation port of the airbag 100 through a pipeline; the inflator 41 comprises an inflator 41 body, an inflation piston, an inflation push plate 41b and an inflation return spring 41 c; the inflation piston is arranged in the inflation cylinder 41a, the inflation push plate 41b is arranged outside the inflation cylinder 41a, the inflation push plate 41b is fixedly connected with the inflation piston through an intermediate connecting rod, and the inflation return spring 41c is arranged between the inflation push plate 41b and the inflation cylinder 41a and tends to force the inflation push plate 41b to be far away from the inflation cylinder 41 a; the inflating cam 42 is rotatably arranged on the bracket through an inflating pivot shaft, and the working surface of the inflating cam 42 is abutted against the inflating push plate 41 b; one end of the inflatable coil spring 43 is wound on the inflatable pivot shaft, the other end of the inflatable coil spring 43 is connected with the bracket, and the inflatable coil spring 43 tends to drive the inflatable pivot shaft and the inflatable cam 42 to rotate after being unfolded; the air-charging hand switch 44 includes: the inflating rotary shaft is connected with the inflating cam 42, the inflating cam 42 can be driven to rotate forwards by rotating the inflating rotary shaft through the inflating handle, and meanwhile, the inflating coil spring 43 is forced to expand and store energy; the inflation cam 42 rotates positively to cooperate with the inflation return spring 41c to force the inflation push plate 41b to force the inflation piston to reciprocate, so as to inflate the sealed airbag 100; after the inflating handle is loosened, the inflating coil spring 43 drives the inflating cam 42 to rotate reversely, the inflating cam 42 and the inflating return spring 41c are continuously matched to force the inflating push plate 41b to drive the inflating piston to reciprocate, and the sealed airbag 100 is continuously inflated; until the inflating coil spring 43 is reset, the inflating process of the sealed air bag is completed.
And also include inflating the flexible silk thread 45 (such as the metal wire), inflate one end of flexible silk thread 45 twine on inflating the rotating shaft, inflate the middle of the flexible silk thread 45 and pass around one or several guide pulleys, inflate one end of flexible silk thread 45 twine on inflating the pin joint axle; the inflation hand switch 44 rotates the inflation cam 42 through a flexible wire.
The manual exhaust device 50 includes: the device comprises a bracket, an exhaust cylinder 51, an exhaust cam 52, an exhaust coil spring 53 and an exhaust hand switch 54; the exhaust hole of the exhaust tube 51 is connected with the exhaust port of the sealed airbag 100 through a pipeline; the exhaust cylinder 51 comprises an exhaust cylinder body 51a, an exhaust piston, an exhaust push plate 51b and an exhaust return spring 51 c; the exhaust piston is arranged in the exhaust cylinder 51a, the exhaust push plate 51b is arranged outside the exhaust cylinder 51a, the exhaust push plate 51b is fixedly connected with the exhaust piston through an intermediate connecting rod, and the exhaust reset spring 51c is arranged between the exhaust push plate 51b and the exhaust cylinder 51a and tends to force the exhaust push plate 51b to be far away from the exhaust cylinder 51 a; the exhaust cam 52 is rotatably arranged on the bracket through an exhaust pivot shaft, and the working surface of the exhaust cam 52 is abutted against the exhaust push plate 51 b; the exhaust coil spring 53 is wound around the exhaust pivot shaft at one end and connected to the bracket at the other end, and the exhaust coil spring 53 tends to rotate the exhaust pivot shaft and the exhaust cam 52 after being unfolded.
The exhaust hand switch 54 includes: the exhaust rotating shaft is connected with the exhaust cam 52, and the exhaust rotating shaft can drive the exhaust cam 52 to rotate forwards by rotating the exhaust handle, and meanwhile, the exhaust coil spring 53 is forced to expand and store energy; the exhaust cam 52 rotates positively to cooperate with the exhaust return spring 51c to force the exhaust push plate 51b to drive the exhaust piston to reciprocate, so as to exhaust the sealed airbag 100; after the exhaust handle is loosened, the exhaust coil spring 53 drives the exhaust cam 52 to rotate reversely, the exhaust cam 52 and the exhaust return spring 51c are continuously matched to force the exhaust push plate 51b to drive the exhaust piston to reciprocate, and the sealed air bag 100 is continuously exhausted (the air in the air bag is sucked out); until the vent coil spring 53 is reset.
The exhaust device further comprises an exhaust flexible silk thread 55 (such as a metal wire), wherein one end of the exhaust flexible silk thread 55 is wound on the exhaust rotating shaft, the middle of the exhaust flexible silk thread 55 is wound around one or more guide wheels, and one end of the exhaust flexible silk thread 55 is wound on the exhaust pivoting shaft; the exhaust hand switch 54 drives the exhaust cam 52 to rotate through the exhaust flexible wire.
Preferably, the exhaust hand switch 54 and the inflation hand switch 44 are provided on a wall body on the door body side.
The manual exhaust device 50 and the manual inflation device 40 can seal the door body without external electric power, and are convenient to popularize. Alternatively, it can be used in case of power failure or insufficient air supply as an alternative technique.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (12)
1. A kind of clean room door body hermetically-sealed construction, characterized by comprising: building door frames and doors;
one side of the door body is pivoted on the door frame through a pivoting shaft;
a sealing structure for sealing a gap between the door body and the door frame is arranged between the door body and the door frame;
the sealing structure is a sealing air bag arranged on the door body or the door frame.
2. The clean room door body sealing structure according to claim 1, wherein said sealing airbag is disposed on said door frame.
3. The clean room door body sealing structure according to claim 1, wherein the door frame is rectangular and the sealing airbag is rectangular.
4. The clean room door body sealing structure according to claim 1, wherein an air curtain is provided at one side or both sides of the door body.
5. The clean room door body sealing structure according to claim 1, wherein a pressure value in the clean zone is at least 10Pa greater than an external pressure value.
6. The clean room door body sealing structure according to claim 1, wherein the sealing air bags comprise a first air bag, a second air bag and a third air bag;
the second air bag and the third air bag are arranged in the first air bag; in the thickness direction of the door body, the second air bag and the third air bag are arranged side by side at intervals.
7. The clean room door body sealing structure according to claim 6, further comprising a gas source for supplying high pressure gas to the first air cell, the second air cell and the third air cell. After the air source is started, the first air bag, the second air bag and/or the third air bag can be expanded, so that a gap between the door body and the window or the crane rail is blocked, and the sealing effect is realized.
8. The clean room door body sealing structure according to claim 6, further comprising a main air line and a branch air line; the branch pipeline comprises a first branch, a second branch and a third branch;
the air source is respectively connected with the first air bag, the second air bag and the third air bag through a main air pipeline and the first branch, the second branch and the third branch.
9. The clean room door body sealing structure of claim 8, wherein the first branch, the second branch and the third branch are respectively provided with a first control valve, a second control valve and a third control valve.
10. The clean room door body sealing structure of claim 9, wherein the second control valve is an air pressure control valve comprising a second inlet port, a second outlet port and a second control port; the second inlet end and the second outlet end are connected with the second branch; the second control port is communicated with the first air bag through a second control air path;
the second control valve is a normally closed valve body, and when the air pressure in the first air bag is lower than a set pressure value, the elastic part in the air pressure control valve overcomes the pressure of the second control air circuit to open the second control valve.
11. The clean room door body sealing structure of claim 8, wherein the third control valve is an air pressure control valve comprising a third inlet port, a third outlet port and a third control port; a third inlet end and a third outlet end are connected with the third branch; a third control port is communicated with the first air bag through a third control air path;
and the third control valve is a normally closed valve body, and when the air pressure in the first air bag is lower than a set pressure value, an elastic part in the air pressure control valve overcomes the pressure of the third control air path to open the third control valve.
12. The clean room door body sealing structure according to claim 1, wherein the air source is a high pressure air tank or an air pump with an air tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111514972.9A CN114233163A (en) | 2021-12-13 | 2021-12-13 | Sealing structure of clean room door body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111514972.9A CN114233163A (en) | 2021-12-13 | 2021-12-13 | Sealing structure of clean room door body |
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| Publication Number | Publication Date |
|---|---|
| CN114233163A true CN114233163A (en) | 2022-03-25 |
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ID=80755005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111514972.9A Pending CN114233163A (en) | 2021-12-13 | 2021-12-13 | Sealing structure of clean room door body |
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| Country | Link |
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| CN (1) | CN114233163A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204984192U (en) * | 2015-08-27 | 2016-01-20 | 上海同百幕墙门窗工程有限公司 | Door and window pressure bladder and door and window |
| CN108150066A (en) * | 2018-03-16 | 2018-06-12 | 军事科学院系统工程研究院卫勤保障技术研究所 | A kind of double bolloon inflatable gas-tight door and its air-tightness self checking method |
| CN111828094A (en) * | 2020-06-30 | 2020-10-27 | 上海大学 | Deep-buried earth pressure balance shield hole-entering double-air-bag sealing device and sealing method thereof |
| CN111888632A (en) * | 2020-07-30 | 2020-11-06 | 四川大学华西医院 | Double-layer throat supporting device |
-
2021
- 2021-12-13 CN CN202111514972.9A patent/CN114233163A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204984192U (en) * | 2015-08-27 | 2016-01-20 | 上海同百幕墙门窗工程有限公司 | Door and window pressure bladder and door and window |
| CN108150066A (en) * | 2018-03-16 | 2018-06-12 | 军事科学院系统工程研究院卫勤保障技术研究所 | A kind of double bolloon inflatable gas-tight door and its air-tightness self checking method |
| CN111828094A (en) * | 2020-06-30 | 2020-10-27 | 上海大学 | Deep-buried earth pressure balance shield hole-entering double-air-bag sealing device and sealing method thereof |
| CN111888632A (en) * | 2020-07-30 | 2020-11-06 | 四川大学华西医院 | Double-layer throat supporting device |
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