CN112027394A - Sterile respirator - Google Patents
Sterile respirator Download PDFInfo
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- CN112027394A CN112027394A CN202011023560.0A CN202011023560A CN112027394A CN 112027394 A CN112027394 A CN 112027394A CN 202011023560 A CN202011023560 A CN 202011023560A CN 112027394 A CN112027394 A CN 112027394A
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- pressure valve
- negative pressure
- valve body
- opening
- air inlet
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- 238000004140 cleaning Methods 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 53
- 238000004891 communication Methods 0.000 claims description 4
- 235000012054 meals Nutrition 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
- B65D90/34—Venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/196—Equalising valves predominantly for tanks spring-loaded
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to an aseptic respirator, which comprises a negative pressure valve body and a positive pressure valve body, wherein the negative pressure valve body is connected with the positive pressure valve body, a cleaning ball is arranged on the negative pressure valve body, an air outlet and an air outlet valve component are arranged on the positive pressure valve body, a first opening is arranged at the bottom end of the negative pressure valve body, a connecting pipeline is arranged below the first opening, the connecting pipeline and the first opening are arranged concentrically, and an air inlet is circumferentially arranged at the bottom end of the negative pressure valve body by taking the first opening as the center; a negative pressure valve plate is arranged in the negative pressure valve body above the first opening, the negative pressure valve plate covers the air inlet, a second opening is formed in the negative pressure valve plate, and the second opening and the first opening are arranged in a concentric mode; the cleaning ball is arranged above the second opening; and the negative pressure valve body is provided with a sterile air source interface. The aseptic respirator has more ideal cleaning effect and can meet the higher requirements of people on the cleaning effect.
Description
Technical Field
The invention relates to the technical field of breathing of tank bodies, in particular to a sterile respirator.
Background
In the using process of the tank body, feeding and discharging are often carried out, so that the pressure in the tank body needs to be controlled to prevent the tank body from being burst when the pressure is too high or from being deformed when the pressure is too low, in special fields, such as food, pharmaceutical and the like, while controlling the pressure inside the tank, it is necessary to ensure cleanliness of the interior of the tank, therefore, people design a sterile respirator, the problem is solved by installing the sterile respirator on the tank body, among the existing aseptic respirators, as disclosed in patent document No. 201210428031.8, published on 14/05/2014, is an aseptic respirator that, the aseptic respirator can ensure the sterility in the tank body when balancing the pressure in the tank body, and can also conveniently adjust the pressure balance point in the tank body when negative pressure is generated, so that the safety of the thin-wall storage tank is ensured when the pressure in the tank is lower than the atmospheric pressure. Although the structure has better safety performance, the following technical problems still exist:
1. the design mode of the pressure plate ensures that the sterile respirator can be connected with the tank body only through the elbow, so that the cleaning ball and the tank body cannot be concentrically arranged, the cleaning effect is not ideal, and the higher requirement of people on the cleaning effect cannot be met;
2. the regulation of the pressure in the tank body is only in a mechanical automatic control mode, and the higher working condition requirement cannot be met.
Disclosure of Invention
It is an object of the present invention to provide a sterile respirator and binding system that addresses at least one of the problems set forth above.
One technical scheme of the application is as follows: an aseptic respirator comprises a negative pressure valve body and a positive pressure valve body, wherein the negative pressure valve body is connected with the positive pressure valve body, a cleaning ball is mounted on the negative pressure valve body, an air outlet and an air outlet valve assembly are arranged on the positive pressure valve body, a first opening is formed in the bottom end of the negative pressure valve body, a connecting pipeline is arranged below the first opening, the connecting pipeline and the first opening are arranged concentrically, and an air inlet is circumferentially formed in the bottom end of the negative pressure valve body by taking the first opening as a center; a negative pressure valve plate is arranged in the negative pressure valve body above the first opening, the negative pressure valve plate covers the air inlet, a second opening is formed in the negative pressure valve plate, and the second opening and the first opening are arranged in a concentric mode; the cleaning ball is arranged above the second opening; and the negative pressure valve body is provided with a sterile air source interface.
Preferably, the negative pressure valve plate is provided with a first sealing ring and a second sealing ring corresponding to the air inlet, the first sealing ring is located on one side, close to the first opening, of the air inlet, and the second sealing ring is located on one side, far away from the first opening, of the air inlet.
Preferably, the first sealing ring and the second sealing ring comprise a connecting portion and a sealing portion, the connecting portion is embedded in the negative pressure valve plate, the sealing portion is obliquely arranged, and the distance from the top end to the air inlet is smaller than the distance from the bottom end to the air inlet.
Preferably, the number of the air inlets is multiple, the air inlets are uniformly arranged, a drain port communicated with the first opening is arranged between every two adjacent air inlets, a first groove communicated with the drain port is arranged on the side surface of the bottom end of the negative pressure valve body, the first groove is positioned below the negative pressure valve plate, and a gap is formed between the negative pressure valve plate and the side wall of the negative pressure valve body; the bottom of negative pressure valve body is provided with annular recess, and is a plurality of the air inlet with annular recess intercommunication, the negative pressure valve plate covers on the annular recess, first sealing washer is located annular recess is close to first open-ended one side, the second sealing washer is located first open-ended one side is kept away from to annular recess.
Preferably, a splash guard is arranged outside the connecting pipeline, the top end of the splash guard is connected with the bottom end of the negative pressure valve body, the splash guard is obliquely arranged, the distance from the top end to the connecting pipe is greater than the distance from the bottom end to the connecting plate, and the air inlet is positioned between the rice protecting plate and the connecting pipeline; and a mesh enclosure is arranged on the outer side of the splash guard.
Preferably, a water outlet is arranged below the mesh cover.
Preferably, the bottom of malleation valve body be provided with the intercommunicating pore of gas vent intercommunication, be located in the malleation valve body the top of intercommunicating pore is provided with the malleation valve plate, the malleation valve plate covers on the intercommunicating pore, be provided with on the malleation valve plate and be used for supporting the resilient means of malleation valve plate.
Preferably, the elastic device is a spring, one end of the spring is connected with the positive pressure valve plate, and the other end of the spring is connected with the positive pressure valve body.
Preferably, a sealing ring is arranged at the bottom end of the positive pressure valve plate; the flange joint board is installed on the top of malleation valve body, be connected with the flange on the flange board, be provided with proximity switch on the flange, the flange not with the one end that the flange board is connected with pneumatic head, be fixed with the guide arm on the malleation valve plate, the guide arm passes the flange supports on the execute component of pneumatic head.
Preferably, the inner part of the pneumatic head is hollow, a sliding plate is arranged inside the pneumatic head, the sliding plate is connected with the inner wall of the pneumatic head in a sliding and sealing manner, a spring is arranged in the pneumatic head, one end of the spring abuts against the top end of the pneumatic head, the other end of the spring abuts against the sliding plate, and the guide rod abuts against the sliding plate; one side of the sliding plate, which is back to the spring, and the flange form a closed cavity, and a pneumatic connector communicated with the cavity is arranged on the flange.
When the aseptic respirator provided by the invention is used, the connecting pipeline is connected with the tank body, when the tank body is fed, air in the tank body is compressed, the pressure is increased, the negative pressure valve plate is compressed to completely seal the air inlet to prevent the air inlet from entering, once the pressure is increased to be greater than a positive pressure threshold (the positive pressure threshold is generally 0.5Bar, the value can be properly adjusted according to process requirements, the optimal value is suggested to be 0.45Bar), the air outlet valve component is opened to enable the air outlet to be communicated with the interior of the negative pressure valve body, and the aseptic compressed air is released until the pressure is reduced to be less than the positive pressure threshold, and the air outlet valve component is closed, so that the pressure in the tank is not too high;
when the tank body discharges, the air pressure in the tank body is reduced to form negative pressure, the sterile compressed air connected with the sterile air source interface replenishes air into the tank, the pressure in the tank is balanced, the flow of the general sterile compressed air is not less than the flow of discharged materials, if the flow of the sterile compressed air is not more than the flow of the discharged materials, the pressure in the storage tank continuously drops, in an extreme state, if an external sterile compressed air source is closed, the pressure continuously drops until the pressure reaches a negative pressure threshold value (the negative pressure threshold value is generally-0.07 Bar), the negative pressure pressing plate is lifted under the action of the negative pressure, and the air outside the negative pressure valve body is sucked through the air inlet, so that the storage tank is protected from too large.
The sterile respirator has the following advantages: the design mode of negative pressure clamp plate makes aseptic respirator can be through connecting tube in the below and jar body coupling for the scavenging ball can set up with one heart with jar body, and the cleaning performance is more ideal, more can satisfy people to the higher requirement of cleaning performance.
Drawings
FIG. 1 is a schematic structural view of a sterile respirator provided by the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a schematic structural view of the first seal ring (second seal ring) in fig. 2;
FIG. 4 is a schematic view of a portion of the structure of FIG. 1;
wherein the reference numbers: the device comprises a connecting pipeline 1, a water outlet 2, a negative pressure valve body 3, a flange 4, a sliding plate 5, a cleaning ball 6, a positive pressure valve body 7, an air outlet 8, a pneumatic head 9, a flange connecting plate 10, a guide rod 11, a sealing ring 12, a positive pressure valve plate 13, a communication hole 14, a spring 15, a sterile air source interface 16, a first sealing ring 17, a cavity 18, a negative pressure valve plate 19, a second sealing ring 20, a proximity switch 23, a mesh enclosure 24, a pneumatic connector 25, a first opening 31, an air inlet 32, a second opening 33, a connecting part 34, a sealing part 35, a drain port 36, a first groove 37, an annular groove 38 and a splash-proof plate 39.
Detailed Description
The invention is further illustrated by the following figures and examples.
The invention provides a sterile respirator, which is shown in figures 1 and 2 and comprises a negative pressure valve body 3 and a positive pressure valve body 7, wherein the negative pressure valve body is connected with the positive pressure valve body, a cleaning ball 6 is arranged on the negative pressure valve body, a cip cleaning head can be used as the cleaning head in the embodiment, an air outlet 8 and an air outlet valve assembly are arranged on the positive pressure valve body, a first opening 31 is arranged at the bottom end of the negative pressure valve body, a connecting pipeline 1 is arranged below the first opening and used for connecting a tank body, the connecting pipeline and the first opening are arranged concentrically, and an air inlet 32 is circumferentially arranged at the bottom end of the negative pressure valve body by taking the first opening as a center; a negative pressure valve plate 19 is arranged above the first opening in the negative pressure valve body, the negative pressure valve plate covers the air inlet, a second opening 33 is formed in the negative pressure valve plate, and the second opening and the first opening are arranged concentrically; the cleaning ball is arranged above the second opening; and the negative pressure valve body is provided with a sterile air source interface 16.
When the aseptic respirator is used, the connecting pipeline is connected with the tank body, when the tank body is fed, air in the tank body is compressed, the pressure is increased, the negative pressure valve plate is compressed to completely seal the air inlet to prevent the air inlet from entering air, once the pressure is increased to be greater than a positive pressure threshold (the positive pressure threshold is generally 0.5Bar, the value can be properly adjusted according to process requirements, the optimal value is suggested to be 0.45Bar), the air outlet valve component is opened to enable the air outlet to be communicated with the interior of the negative pressure valve body, and the air outlet valve component is closed when the pressure is reduced to be less than the positive pressure threshold, so that the pressure in the tank is not overlarge, and the safety of the thin-wall storage;
when the tank body discharges, the air pressure in the tank body is reduced to form negative pressure, the sterile compressed air connected with the sterile air source interface replenishes air into the tank, the pressure in the tank is balanced, the flow of the general sterile compressed air is not less than the flow of discharged materials, if the flow of the sterile compressed air is not more than the flow of the discharged materials, the pressure in the storage tank continuously drops, in an extreme state, if an external sterile compressed air source is closed, the pressure continuously drops until the pressure reaches a negative pressure threshold value (the negative pressure threshold value is generally-0.07 Bar), the negative pressure pressing plate is lifted under the action of the negative pressure, and the air outside the negative pressure valve body is sucked through the air inlet, so that the storage tank is protected from too large.
The sterile respirator has the following advantages: the design mode of negative pressure clamp plate makes aseptic respirator can be through connecting tube in the below and jar body coupling for the scavenging ball can set up with one heart with jar body, and the cleaning performance is more ideal, more can satisfy people to the higher requirement of cleaning performance.
In the present application, the negative pressure valve plate can be a valve plate such as a rubber valve plate which is beneficial to sealing the air inlet, as a preferred scheme, see fig. 1-3, the negative pressure valve plate is provided with a first sealing ring 17 and a second sealing ring 20 corresponding to the air inlet, the first sealing ring is located on one side of the air inlet close to the first opening, the second sealing ring is located on one side of the air inlet far away from the first opening, the first sealing ring and the second sealing ring comprise a connecting portion 34 and a sealing portion 35, the connecting portion and the sealing portion are integrally arranged, the connecting portion is embedded in the negative pressure valve plate, the sealing portion is obliquely arranged, the distance from the top end to the air inlet is less than the distance from the bottom end to the air inlet, the structure is blocked outside the air inlet through the first sealing ring, the second sealing ring is blocked inside the air inlet, so that the sealing effect of the negative pressure valve plate, the slope of sealing portion sets up for the negative pressure valve plate is when receiving pressure the sealing portion more easily outside extension form the sealed to the air inlet, and is sealed effectual, and when the negative pressure valve plate was receiving negative pressure suction, the border position broke away from negative pressure valve body bottom surface to the air inlet formation sealed until border position when the sealing portion inwards contracts, prevents that the negative pressure valve plate from leaking gas when not reaching the negative pressure threshold value.
In this application, the air inlet may be provided as an annular opening, or may be provided in a form of a plurality of surrounding second openings, and in this embodiment, it is preferable that: the negative pressure valve comprises a negative pressure valve plate and a negative pressure valve body, wherein a plurality of air inlets are uniformly arranged, a drain port 36 communicated with the first opening is arranged between every two adjacent air inlets, a first groove 37 communicated with the drain port is arranged on the side surface of the bottom end of the negative pressure valve body, the first groove is positioned below the negative pressure valve plate, and a gap is formed between the negative pressure valve plate and the side wall of the negative pressure valve body; the bottom end of the negative pressure valve body is provided with an annular groove 38, the air inlets are communicated with the annular groove, the negative pressure valve plate covers the annular groove, the first sealing ring is positioned on one side of the annular groove close to the first opening, the second sealing ring is positioned on one side of the annular groove far away from the first opening, the structure ensures that the first sealing ring and the second sealing ring can be communicated with the inside of the negative pressure valve body through the matching of the drain port and the first groove, when the annular groove and the air inlets are ventilated, gas can be uniformly contacted with the first sealing ring and the second sealing ring, the first sealing ring and the second sealing ring are deformed more uniformly, the negative pressure valve plate is stressed more uniformly, and the air inlets are more uniformly fed, wherein the outer side of the connecting pipeline is preferably provided with a splash guard 39 to form protection on the air inlets, in the embodiment, the top end of the splash guard is connected with the bottom end of the negative pressure valve body, the splash guard is obliquely arranged, the distance from the top end to the connecting pipe is greater than the distance from the bottom end to the connecting plate, and the air inlet is positioned between the rice guard plate and the connecting pipeline; in order to prevent impurities such as insects from entering the air inlet, a mesh enclosure 24 is arranged on the outer side of the splash guard. In order to facilitate water drainage, a water outlet 2 is arranged below the mesh enclosure.
In this application, gas vent 8 and air outlet valve subassembly can use current mode design, as a design, the bottom of malleation valve body be provided with the intercommunicating pore 14 of gas vent intercommunication, positive pressure valve internal lieing in the top of intercommunicating pore is provided with malleation valve plate 13, malleation valve plate covers on the intercommunicating pore, be provided with on the malleation valve plate and be used for supporting the resilient means of malleation valve plate, resilient means is the spring, spring one end with the malleation valve plate is connected, the other end with the malleation valve body is connected. In order to increase the sealing effect, the bottom end of the positive pressure valve plate is provided with a sealing ring 12.
As a preferred embodiment, referring to fig. 1 and 4, a flange connecting plate 10 is installed at the top end of the positive pressure valve body, the flange plate is connected with a flange 4, the flange is provided with a proximity switch 23, one end of the flange which is not connected with the flange plate is connected with a pneumatic head 9, a guide rod 11 is fixed on the positive pressure valve plate, the guide rod penetrates through the flange and abuts against an actuating element of the pneumatic head, wherein, the pneumatic head can use the existing pneumatic head, in the embodiment, the inner part of the pneumatic head is hollow, a sliding plate 5 is arranged in the pneumatic head and is connected with the inner wall of the pneumatic head in a sliding and sealing way, a spring 15 is arranged in the pneumatic head, one end of the spring abuts against the top end of the pneumatic head, the other end of the spring abuts against the sliding plate, and the guide rod abuts against the sliding plate; one side of the sliding plate, which is back to the spring, and the flange form a closed cavity 18, and the flange is provided with a pneumatic connector 25 communicated with the cavity. Through setting up pneumatic head for the aseptic respirator of this application can have two kinds of using-way at least:
mode 1, mechanical automatic mode: when the tank body is fed, air in the tank body is compressed, the pressure is increased, the negative pressure valve plate is compressed to completely seal the air inlet to prevent the air inlet from entering air, once the pressure is increased to be larger than a positive pressure threshold value (the positive pressure threshold value is generally 0.5Bar, the value can be properly adjusted according to process requirements, and the optimal value is recommended to be 0.45Bar), the positive pressure valve plate drives the guide rod to move upwards to enable the air outlet and the interior of the negative pressure valve body to be communicated, sterile compressed air is released until the pressure is reduced to be smaller than the positive pressure threshold value, the air outlet valve assembly is closed, so that the pressure in the tank cannot be overlarge;
when the tank body discharges, the air pressure in the tank body is reduced to form negative pressure, the sterile compressed air connected with the sterile air source interface replenishes air into the tank, the pressure in the tank is balanced, the flow of the general sterile compressed air is not less than the flow of discharged materials, if the flow of the sterile compressed air is not more than the flow of the discharged materials, the pressure in the storage tank continuously drops, in an extreme state, if an external sterile compressed air source is closed, the pressure continuously drops until the pressure reaches a negative pressure threshold value (the negative pressure threshold value is generally-0.07 Bar), the negative pressure pressing plate is lifted under the action of the negative pressure, and the air outside the negative pressure valve body is sucked through the air inlet, so that the storage tank is protected from too large.
It should be noted that the above description of the principle of use of the sterile respirator is merely illustrative and is equally applicable in other situations where the tank pressure can be increased or decreased, such as when cleaning with a cip cleaning head, such as hot water, which increases the tank pressure as the feed; when cold water enters from the hot tank, the pressure in the storage tank is continuously reduced due to the condensation (heat exchange) effect, the breather valve can also play a role in protecting the tank body in the process, and the principle is the same as that of the feeding and discharging, so the details are not repeated.
The above description is only for the purpose of illustrating preferred embodiments of the present invention and is not to be construed as limiting the present invention, and the terms first, second, etc. are used for distinguishing between similar terms and not for limiting the technical terms, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A sterile respirator comprises a negative pressure valve body (3) and a positive pressure valve body (7), the negative pressure valve body is connected with the positive pressure valve body, a cleaning ball (6) is arranged on the negative pressure valve body, an exhaust port (8) and an air outlet valve component are arranged on the positive pressure valve body, and the sterile respirator is characterized in that,
a first opening (31) is formed in the bottom end of the negative pressure valve body, a connecting pipeline (1) is arranged below the first opening, the connecting pipeline and the first opening are arranged concentrically, and an air inlet (32) is circumferentially formed in the bottom end of the negative pressure valve body by taking the first opening as a center;
a negative pressure valve plate (19) is arranged above the first opening in the negative pressure valve body, the negative pressure valve plate covers the air inlet, a second opening (33) is formed in the negative pressure valve plate, and the second opening and the first opening are arranged in a concentric mode;
the cleaning ball is arranged above the second opening;
the negative pressure valve body is provided with a sterile air source interface (16).
2. The aseptic respirator according to claim 1, wherein a first sealing ring (17) and a second sealing ring (20) are arranged on the negative pressure valve plate corresponding to the air inlet, the first sealing ring is positioned on one side of the air inlet close to the first opening, and the second sealing ring is positioned on one side of the air inlet far away from the first opening.
3. The aseptic respirator of claim 2, wherein the first and second sealing rings comprise a connecting portion (34) embedded in the negative pressure valve plate and a sealing portion (35) that is obliquely disposed with a distance from a top end to the air inlet port that is less than a distance from a bottom end to the air inlet port.
4. The sterile respirator of claim 3, wherein the air inlet ports are a plurality of air inlet ports, the air inlet ports are uniformly arranged, a drain port (36) communicated with the first opening is arranged between the adjacent air inlet ports, the bottom end of the negative pressure valve body is laterally provided with a first groove (37) communicated with the drain port, the first groove is positioned below the negative pressure valve plate, and a gap is reserved between the negative pressure valve plate and the side wall of the negative pressure valve body;
the bottom of negative pressure valve body is provided with annular recess (38), and is a plurality of the air inlet with annular recess intercommunication, the negative pressure valve plate covers on the annular recess, first sealing washer is located annular recess is close to first open-ended one side, the second sealing washer is located first open-ended one side is kept away from to annular recess.
5. The aseptic respirator as claimed in any one of claims 1 to 4, wherein a splash guard (39) is disposed outside the connecting pipe, the top end of the splash guard is connected to the bottom end of the negative pressure valve body, the splash guard is disposed obliquely, the distance from the top end to the connecting pipe is greater than the distance from the bottom end to the connecting plate, and the air inlet is located between the meal guard plate and the connecting pipe;
and a mesh enclosure (24) is arranged on the outer side of the splash guard.
6. An aseptic respirator according to claim 5, wherein a drain (2) is provided below the mesh.
7. A sterile respirator according to any one of claims 1 to 4, wherein the bottom of the positive pressure valve body is provided with a communication hole (14) which is communicated with the exhaust port, a positive pressure valve plate (13) is arranged in the positive pressure valve body above the communication hole and covers the communication hole, and elastic means for abutting against the positive pressure valve plate is arranged on the positive pressure valve plate.
8. The sterile respirator of claim 7, wherein the resilient means is a spring, one end of the spring is connected to the positive pressure valve plate, and the other end of the spring is connected to the positive pressure valve body.
9. The aseptic respirator of claim 7, wherein the bottom end of the positive pressure valve plate is provided with a sealing ring (12);
flange joint board (10) are installed on the top of malleation valve body, be connected with flange (4) on the flange board, be provided with proximity switch (23) on the flange, the flange not with the one end that the flange board is connected with pneumatic head (9), be fixed with guide arm (11) on the malleation valve plate, the guide arm passes the flange supports on the executive component of pneumatic head.
10. The sterile respirator of claim 7, wherein the inner part of the pneumatic head is hollow, a sliding plate (5) is arranged inside the pneumatic head, the sliding plate is connected with the inner wall of the pneumatic head in a sliding and sealing way, a spring (15) is arranged in the pneumatic head, one end of the spring abuts against the top end of the pneumatic head, the other end of the spring abuts against the sliding plate, and the guide rod abuts against the sliding plate;
one side of the sliding plate, which is back to the spring, and the flange form a closed cavity (18), and the flange is provided with a pneumatic connector (25) communicated with the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011023560.0A CN112027394A (en) | 2020-09-25 | 2020-09-25 | Sterile respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011023560.0A CN112027394A (en) | 2020-09-25 | 2020-09-25 | Sterile respirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112027394A true CN112027394A (en) | 2020-12-04 |
Family
ID=73575135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011023560.0A Pending CN112027394A (en) | 2020-09-25 | 2020-09-25 | Sterile respirator |
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| CN (1) | CN112027394A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113187019A (en) * | 2021-04-30 | 2021-07-30 | 上海麦玺隆机械科技有限公司 | Vertical no negative pressure water purification stationary flow jar |
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| CN113187019A (en) * | 2021-04-30 | 2021-07-30 | 上海麦玺隆机械科技有限公司 | Vertical no negative pressure water purification stationary flow jar |
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