CN216279429U - Biological safety closed valve - Google Patents
Biological safety closed valve Download PDFInfo
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- CN216279429U CN216279429U CN202122181527.7U CN202122181527U CN216279429U CN 216279429 U CN216279429 U CN 216279429U CN 202122181527 U CN202122181527 U CN 202122181527U CN 216279429 U CN216279429 U CN 216279429U
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- 238000007789 sealing Methods 0.000 claims abstract description 53
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 11
- IYZWUWBAFUBNCH-UHFFFAOYSA-N 2,6-dichlorobiphenyl Chemical compound ClC1=CC=CC(Cl)=C1C1=CC=CC=C1 IYZWUWBAFUBNCH-UHFFFAOYSA-N 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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Abstract
The utility model is suitable for the technical field of valves, and provides a biological safety airtight valve, which comprises: the sealing valve comprises a sealing valve body, wherein a flow passage for gas to pass through is arranged inside the sealing valve body; the baffle is rotatably connected inside the flow channel and used for controlling the flow channel to be opened or closed, and a movable gap is formed between the outer wall of the baffle and the inner wall of the flow channel; and the sealing device is arranged between the outer wall of the baffle and the inner wall of the flow channel and is used for filling the movable gap when the baffle closes the flow channel. The embodiment of the application can fill the movable gap when the baffle closes the flow channel through the sealing device, so that the problem that the traditional safety airtight valve leaks air due to the existence of the movable gap is solved.
Description
Technical Field
The utility model belongs to the technical field of valves, and particularly relates to a biological safety airtight valve.
Background
Traditional biological safety airtight valve is through opening and shutting of control valve plate in order to realize with external intercommunication or seal, but because the valve plate of biological safety airtight valve adopts flip structure to realize opening and shutting mostly, lead to having the clearance all the time between the inner wall of valve plate and biological safety airtight valve, even the valve plate also can't accomplish when being in the complete closure state and external complete sealing, when biological safety airtight valve is used in some higher environment of security requirement, traditional biological safety airtight valve is difficult to avoid can appearing gaseous (for example toxic gas) and reveal the problem, lead to not passing through the clearance exhaust of strictly filterable gas and leading to the fact air pollution to the external world, obviously can not reach safe emission requirement.
SUMMERY OF THE UTILITY MODEL
The utility model provides a biological safety airtight valve, which can fill a movable gap when a baffle closes a flow passage through a sealing device so as to solve the problem of air leakage caused by the movable gap of the traditional safety airtight valve.
The utility model is thus realized, a biosafety containment valve comprising: the sealing valve comprises a sealing valve body, wherein a flow passage for gas to pass through is arranged inside the sealing valve body; the baffle is rotatably connected inside the flow channel and used for controlling the flow channel to be opened or closed, and a movable gap is formed between the outer wall of the baffle and the inner wall of the flow channel; and the sealing device is arranged between the outer wall of the baffle and the inner wall of the flow channel and is used for filling the movable gap when the baffle closes the flow channel.
Preferably, the baffle is rotatably connected to the inner wall of the flow channel through a rotating shaft, and one end of the rotating shaft, which is far away from the baffle, penetrates through the inner wall of the flow channel and extends out of the outer wall of the closed valve body.
Preferably, one end of the rotating shaft extending out of the outer wall of the closed valve body is connected with a driving device for driving the rotating shaft to rotate.
Preferably, the driving means includes: the fixing plate is erected on the outer wall of the closed valve body; the driving motor is arranged on one end face, far away from the closed valve body, of the fixing plate; an output shaft of the driving motor is fixedly connected with a rotating shaft penetrating through the fixing plate through a coupler; and the control switch is connected with the driving motor.
Preferably, the sealing device comprises: the inflatable sealing ring is sleeved on the outer wall of the baffle plate; and the air pipe is connected with the inflation port of the inflatable sealing ring and extends out of the outer wall of the rotating shaft from the outside of the airtight valve body through the inside of the rotating shaft to be connected with the inflation port of the inflatable sealing ring.
Preferably, the outer wall of the baffle is provided with an annular groove along the circumferential direction, and the inflatable sealing ring is nested in the annular groove.
Preferably, the outer wall of airtight valve body be equipped with through the electric wire with the PCB circuit board that the control switch electricity is connected, still install the solenoid valve on the PCB circuit board, the air inlet and the external air supply of solenoid valve are connected, the gas outlet of solenoid valve with tracheal inlet end is connected, the PCB circuit board is configured to be when receiving control switch sends the runner close signal time control the gas outlet of solenoid valve is opened and then to the trachea is aerifyd.
Preferably, a pressure sensor for detecting the air pressure inside the air pipe is arranged at an air outlet of the electromagnetic valve, and when the pressure sensor detects that the pressure value inside the air pipe exceeds a preset value, an electromagnetic valve closing signal is sent to the PCB, so that the air outlet of the electromagnetic valve is controlled to be closed.
Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:
the biological safety closed valve provided by the utility model comprises a closed valve body, wherein a flow passage for gas to pass through is arranged in the closed valve body; the baffle is rotatably connected inside the flow channel and used for controlling the flow channel to be opened or closed, and a movable gap is formed between the outer wall of the baffle and the inner wall of the flow channel; and the sealing device is arranged between the outer wall of the baffle and the inner wall of the flow channel and is used for filling the movable gap when the baffle closes the flow channel. The embodiment of the application can fill the movable gap when the baffle closes the flow channel through the sealing device, so that the problem that the traditional safety airtight valve leaks air due to the existence of the movable gap is solved.
Drawings
FIG. 1 is a schematic structural view of a biosafety containment valve provided in the present invention;
fig. 2 is another structural schematic diagram of a biosafety containment valve provided in the present invention.
Reference numerals: 1. a hermetic valve body; 2. a flow channel; 3. a baffle plate; 4. a clearance for movement; 5. a sealing device; 51. an inflatable sealing ring; 52. an air tube; 6. a rotating shaft; 7. a drive device; 71. a fixing plate; 72. a control switch; 8. an annular groove; 9. an electric wire; 10. a PCB board; 11. an electromagnetic valve.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to 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; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Traditional biological safety airtight valve is through opening and shutting of control valve plate 10 in order to realize with external intercommunication or seal, but because the valve plate 10 of biological safety airtight valve adopts flip structure to realize opening and shutting mostly, lead to having clearance 4 between the inner wall of valve plate 10 and biological safety airtight valve all the time, even valve plate 10 also can't accomplish when being in the complete closure state and seal completely with external, when biological safety airtight valve is used in some higher environment of security requirement, traditional biological safety airtight valve is difficult to avoid can appearing gaseous (for example toxic gas) and reveals the problem, lead to not leading to the air pollution to the external world through clearance 4 rows of strictly filterable gas, obviously can not reach safe emission requirement. In order to solve the problems, the scheme provides the biosafety airtight valve with better airtightness.
Specifically, referring to fig. 1 to 2, fig. 1 is a schematic view of an overall structure of a biosafety sealing valve. The embodiment of the application provides a biological safety airtight valve, and biological safety airtight valve includes: the air-tight valve comprises a sealed valve body 1, wherein a flow passage 2 for air to pass through is arranged inside the sealed valve body 1; the baffle 3 is rotatably connected inside the flow channel 2 and used for controlling the opening or closing of the flow channel 2, and a movable gap 4 is formed between the outer wall of the baffle 3 and the inner wall of the flow channel 2; and the sealing device 5 is arranged between the outer wall of the baffle 3 and the inner wall of the flow channel 2 and is used for filling the movable gap 4 when the baffle 3 closes the flow channel 2.
In this embodiment, biosafety containment valves are often used in indoor environments where gas safety issues exist, such as on vent lines installed in nuclear power plants and high-risk biological laboratories to effect the shut-off of the vent line. The biological safety airtight valve mainly comprises an airtight valve body 1, a baffle 3 and a sealing device 5.
Wherein, the airtight valve body 1 inside that biological safety airtight valve includes is provided with the runner 2 that supplies gas to pass through, realizes the gas change between indoor environment and the external environment through the circulation.
In some embodiments, the baffle 3 is rotatably connected to the inner wall of the flow channel 2 through a rotating shaft 6, and one end of the rotating shaft 6, which is far away from the baffle 3, penetrates through the inner wall of the flow channel 2 and extends out of the outer wall of the hermetic valve body 1, so that the baffle 3 can be manually adjusted to open and close.
In some embodiments, one end of the rotating shaft 6 extending out of the outer wall of the hermetic valve body 1 is connected with a driving device 7 for driving the rotating shaft 6 to rotate, and the electric adjusting baffle 3 can be opened and closed through the driving device 7.
In one embodiment, the driving device 7 includes a fixing plate 71, a driving motor (not shown), and a control switch 72. The fixed plate 71 is mounted on the outer wall of the hermetic valve body 1. The determining motor is arranged on one end face, far away from the closed valve body 1, of the fixing plate 71, an output shaft of the driving motor is fixedly connected with a rotating shaft 6 penetrating through the fixing plate 71 through a coupler, and the baffle 3 can be automatically opened and closed by controlling the rotation of the driving motor. The control switch 72 is electrically connected to the driving motor, and the control switch 72 may be provided with various controls, such as buttons for controlling the driving motor to start, close, rotate forward, and rotate backward.
In one embodiment, sealing device 5 includes an inflatable sealing ring 51 and an air tube 52. Wherein, the inflatable sealing ring 51 is sleeved on the outer wall of the baffle plate 3 and can be expanded or deflated by inflation. The air tube 52 is connected with the inflation port of the inflatable sealing ring 51, and the air tube 52 extends from the outside of the airtight valve body 1 through the inside of the rotating shaft 6 and out of the outer wall of the rotating shaft 6 to be connected with the inflation port of the inflatable sealing ring 51. When the baffle 3 closes the flow passage 2, the inflatable sealing ring 51 can be inflated by inflating the inflatable sealing ring 51 until the movable gap 4 is filled with the inflated inflatable sealing ring 51, so as to achieve better air tightness. Before the shutter 3 is opened, it is contracted by pumping out the gas in the inflatable sealing ring 51, without affecting the overturning movement of the shutter 3.
In some embodiments, the outer wall of the baffle 3 is provided with an annular groove 8 along the circumferential direction, and the inflatable sealing ring 51 is nested in the annular groove 8. By providing the annular groove 8 for nesting the inflatable sealing ring 51 in the contracted state on the outer wall of the baffle plate 3, the mounting area of the inflatable sealing ring 51 can be further enlarged, the inflatable sealing ring 51 in the contracted state is prevented from influencing the overturning of the baffle plate 3 when the baffle plate 3 is opened, and the inflatable sealing ring 51 can be prevented from being separated from the baffle plate 3.
In some embodiments, the outer wall of the closed valve body 1 is provided with a PCB circuit board 10 electrically connected to the control switch 72 through an electric wire 9, the PCB circuit board 10 is further provided with an electromagnetic valve 11, an air inlet of the electromagnetic valve 11 is connected to an external air source, an air outlet of the electromagnetic valve 11 is connected to an air inlet end of the air tube 52, and the PCB circuit board 10 is configured to control an air outlet of the electromagnetic valve 11 to be opened and further inflate the air tube 52 when receiving a closing signal of the flow channel 2 sent by the control switch 72.
In the present embodiment, the PCB 10 is configured such that when receiving the flow channel 2 closing signal from the control switch 72, the outlet of the control solenoid valve 11 is opened to inflate the air tube 52, so that the closing operation of the baffle 3 and the inflation operation of the inflatable sealing ring 51 can be performed simultaneously by only one control switch 72.
In some embodiments, a pressure sensor for detecting the air pressure inside the air tube 52 is disposed at the air outlet of the electromagnetic valve 11, and when the pressure sensor detects that the pressure value inside the air tube 52 exceeds a preset value, a closing signal of the electromagnetic valve 11 is sent to the PCB 10, so as to control the air outlet of the electromagnetic valve 11 to be closed.
In this embodiment, by providing a pressure sensor (not shown in the figure), when the pressure sensor detects that the internal pressure value of the air tube 52 exceeds a preset value, a closing signal of the electromagnetic valve 11 is sent to the PCB 10, so as to control the air outlet of the electromagnetic valve 11 to be closed, thereby preventing the external air source from continuously inflating the inflatable sealing ring 51 to cause damage to the inflatable sealing ring 51.
In summary, the present application provides a biosafety containment valve, including: the air-tight valve comprises a sealed valve body 1, wherein a flow passage 2 for air to pass through is arranged inside the sealed valve body 1; the baffle 3 is rotatably connected inside the flow channel 2 and used for controlling the opening or closing of the flow channel 2, and a movable gap 4 is formed between the outer wall of the baffle 3 and the inner wall of the flow channel 2; and the sealing device 5 is arranged between the outer wall of the baffle 3 and the inner wall of the flow channel 2 and is used for filling the movable gap 4 when the baffle 3 closes the flow channel 2. The embodiment of the application can fill the movable gap 4 when the baffle 3 closes the flow channel 2 through the sealing device 5, so that the problem that the traditional safety airtight valve leaks air due to the existence of the movable gap 4 is solved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above detailed description is given to a rapid clamp provided in the embodiments of the present application, and specific examples are applied herein to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understand the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (8)
1. A biosafety containment valve, comprising:
the sealing valve comprises a sealing valve body, wherein a flow passage for gas to pass through is arranged inside the sealing valve body;
the baffle is rotatably connected inside the flow channel and used for controlling the flow channel to be opened or closed, and a movable gap is formed between the outer wall of the baffle and the inner wall of the flow channel;
and the sealing device is arranged between the outer wall of the baffle and the inner wall of the flow channel and is used for filling the movable gap when the baffle closes the flow channel.
2. The biosafety containment valve according to claim 1, wherein said baffle is rotatably connected to said inner wall of said flow channel by a shaft, and an end of said shaft remote from said baffle extends through said inner wall of said flow channel and out of said containment valve body.
3. The bio-safety containment valve according to claim 2, wherein the end of the rotating shaft extending out of the outer wall of the containment valve body is connected with a driving device for driving the rotating shaft to rotate.
4. The biosafety containment valve of claim 3, wherein said actuation means comprises:
the fixing plate is erected on the outer wall of the closed valve body;
the driving motor is arranged on one end face, far away from the closed valve body, of the fixing plate;
an output shaft of the driving motor is fixedly connected with a rotating shaft penetrating through the fixing plate through a coupler;
and the control switch is electrically connected with the driving motor.
5. The biosafety containment valve of claim 4, wherein said sealing means comprises:
the inflatable sealing ring is sleeved on the outer wall of the baffle plate;
and the air pipe is connected with the inflation port of the inflatable sealing ring and extends out of the outer wall of the rotating shaft from the outside of the airtight valve body through the inside of the rotating shaft to be connected with the inflation port of the inflatable sealing ring.
6. The bio-safety containment valve according to claim 5, wherein the outer wall of said baffle defines an annular groove along the circumferential direction, and said inflatable sealing ring is nested within said annular groove.
7. The biosafety airtight valve according to claim 5, wherein a PCB circuit board electrically connected with the control switch through an electric wire is arranged on the outer wall of the airtight valve body, an electromagnetic valve is further installed on the PCB circuit board, an air inlet of the electromagnetic valve is connected with an external air source, an air outlet of the electromagnetic valve is connected with an air inlet end of the air pipe, and the PCB circuit board is configured to control the air outlet of the electromagnetic valve to be opened so as to inflate the air pipe when receiving a flow channel closing signal sent by the control switch.
8. The biosafety airtight valve of claim 7, wherein a pressure sensor for detecting the air pressure inside the air tube is arranged at the air outlet of the electromagnetic valve, and when the pressure sensor detects that the pressure value inside the air tube exceeds a preset value, an electromagnetic valve closing signal is sent to the PCB circuit board, so that the air outlet of the electromagnetic valve is controlled to be closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122181527.7U CN216279429U (en) | 2021-09-08 | 2021-09-08 | Biological safety closed valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122181527.7U CN216279429U (en) | 2021-09-08 | 2021-09-08 | Biological safety closed valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216279429U true CN216279429U (en) | 2022-04-12 |
Family
ID=81063541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122181527.7U Active CN216279429U (en) | 2021-09-08 | 2021-09-08 | Biological safety closed valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216279429U (en) |
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2021
- 2021-09-08 CN CN202122181527.7U patent/CN216279429U/en active Active
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