CN112478440A - Sealed storage and transportation device for replaceable positive-pressure sampling pipe - Google Patents
Sealed storage and transportation device for replaceable positive-pressure sampling pipe Download PDFInfo
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- CN112478440A CN112478440A CN202011499824.XA CN202011499824A CN112478440A CN 112478440 A CN112478440 A CN 112478440A CN 202011499824 A CN202011499824 A CN 202011499824A CN 112478440 A CN112478440 A CN 112478440A
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- cylinder body
- way valve
- sealing cover
- sealing
- sampling tube
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- 238000005070 sampling Methods 0.000 title claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
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
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
- B65D53/02—Collars or rings
-
- 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
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
-
- 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
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
-
- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2069—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
- B65D81/2076—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in an at least partially rigid container
-
- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/261—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for draining or collecting liquids without absorbing them
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a replacement type positive pressure sampling pipe sealing storage device, which comprises a cylinder body and a sealing cover, wherein the cylinder body is provided with a sealing opening; the method is characterized in that: the cylinder body is internally provided with a baffle plate which divides the cylinder body into a storage cavity and two independent cavities of a gas cavity; a sealing cover is covered on the cylinder body; the bottom of the cylinder body is provided with a first one-way valve for filling compressed gas; the device is characterized in that clean compressed air is charged in advance, and when the device is used, the air in the space for storing the sampling tube is completely replaced by the clean compressed air, so that the space for storing the sampling tube cannot cause any pollution to the sampling tube; and the space where the sampling tube is positioned can be ensured to be in a positive pressure state, and even if leakage exists, external air can be ensured not to enter the space, so that the data is ensured to be completely accurate, operation errors in the process are completely avoided, and the method has substantial significance for the air detection industry.
Description
Technical Field
The invention relates to the field of detection equipment, in particular to a replacement type positive pressure sampling tube sealing storage and transportation device.
Background
The sampling tube is a tool for rapidly measuring the concentration of harmful gases in the air, wherein one commonly used tool for environmental detection is an activated carbon adsorption tube, which is composed of a metal (generally stainless steel material) or a glass tube, the adsorption material (such as graphitized carbon black) is filled in the activated carbon adsorption tube, and two ends of the activated carbon adsorption tube are covered by rubber caps; when the air-sucking device is used, the rubber caps at two ends are taken down to suck air on site, and then the rubber caps are blocked to be brought back to a laboratory for testing so as to determine the air content condition on site.
However, the sealing performance of the rubber caps at the two ends of the metal or glass tube is very poor, and the rubber caps are put into a storage box or a plastic bag to be brought back in the process of bringing the metal or glass tube back to a laboratory from the field; contaminated sampling tubes can seriously affect the accuracy of data; for example, the air quality on site is not problematic originally, but since the outside air enters the sampling tube during transportation, the components of the substances directly adsorbed by the sampling tube are increased, and the final detection result is the result of the substances adsorbed on site and the air substances during transportation on the road, which is different from the fact that the result is relatively large, so that the sealed storage of the sampling tube after the sample is collected is necessary.
Although there is the containing box of sealed saving at present, but the problem of revealing returns to the end, as long as the outside air enters into the containing box, will cause the pollution to the sampling pipe, and most of the time, even after the sampling pipe that collects has transported the laboratory, because the time limit for a project, the condition such as equipment occupy, also can't be when detecting it promptly, can only carry out the low temperature preservation earlier, and under the low temperature condition, the thermal expansion degree of different materials is different, it reveals the problem more obvious, therefore present result can ensure even can that the sampling pipe pollutes very little but the problem of revealing when cold-stored also can't be solved in the transportation.
Disclosure of Invention
The invention aims to provide a replacement type positive pressure sampling tube sealing storage device, which is characterized in that clean compressed air is charged in advance, and when the device is used, the air in a space for storing a sampling tube is completely replaced by the clean compressed air, so that the space for storing the sampling tube cannot cause any pollution to the sampling tube; and the space where the sampling tube is positioned can be ensured to be in a positive pressure state, and even if leakage exists, external air can be ensured not to enter the space, so that the data is ensured to be completely accurate, operation errors in the process are completely avoided, and the method has substantial significance for the air detection industry.
A replacement type positive pressure sampling tube sealing storage and transportation device comprises a cylinder body and a sealing cover; the method is characterized in that:
the cylinder body is internally provided with a baffle plate which divides the cylinder body into a storage cavity and two independent cavities of a gas cavity; a sealing cover is covered on the cylinder body; the bottom of the cylinder body is provided with a first one-way valve for filling compressed gas;
a second one-way valve is arranged on the baffle plate and used for communicating the storage cavity and the gas cavity, and the second one-way valve controls the air flow to flow into the storage cavity from the gas cavity; the baffle is provided with a conduit, the conduit covers the second one-way valve, and the free end of the conduit extends to the edge of the opening of the cylinder body;
through holes are uniformly formed in the side face of the bottom of the guide pipe; a lower baffle ring is arranged in the guide pipe;
a pressure rod is arranged in the guide pipe in a sliding manner along the axial direction, an upper retaining ring is arranged on the pressure rod, and a spring is arranged between the lower retaining ring and the upper retaining ring;
the sealing cover is provided with a circular hole, the position of the circular hole corresponds to that of the pressing rod, a rubber film is arranged in the circular hole, and the rubber film is pressed to touch the pressing rod to move downwards to open the second one-way valve.
Preferably, the cylinder is made of glass or metal.
Preferably, the sealing cover is fixed with the cylinder body in a threaded connection mode.
Further, the inner bottom of the sealing cover is provided with a sealing ring, and the sealing ring is matched with the edge of the opening of the barrel body.
Preferably, when the pressure lever is installed in the conduit, the distance between the lower end of the pressure lever and the first one-way valve is 2-5 mm.
Preferably, the top end of the pressure rod is provided with a pressure head.
Preferably, the rubber membrane is connected with the sealing cover in a sealing mode.
The invention has the following beneficial effects:
the invention relates to equipment special for storing a sampling tube, in particular to a special tool, which is not provided with a special tool aiming at the storage of the sampling tube at present, so that the sampling tube can be placed in a plastic bag or a containing box and transferred to a laboratory for testing after on-site sampling, long-term practice shows that the sampling tube can lead external air to enter the sampling tube in the transportation process, the sampling tube after sampling is polluted, the data is not up to the standard, the data is still unqualified after the quality of on-site air is improved, the data is discovered to be in the transportation environment through continuous adjustment, the sealing problem of the sampling tube per se is caused, and the equipment can be used for packaging the sampling tube into the equipment, so that the air around the sampling tube is pure air, and the problem that the sample is polluted by the air around is avoided.
In the second and the present application, the air in the device is exhausted by replacement, so that only clean air is retained in the device, and the clean air is free of contaminants, and therefore, the sampling tube is not polluted, and the sample is protected by hundreds of percent.
Third, in this application, can produce a malleation state in making equipment, the advantage of malleation state is exactly overcome and reveals the problem because reveal (especially trace reveal) is very difficult to solve, and the existence of malleation just can avoid this problem completely, and the outside air is in can't entering into equipment at all, just can't cause the pollution to the sampling tube yet.
Fourth, in this application, through pressing the rubber membrane on the sealed lid, can realize realizing the controllable release of the compressed air in the gas chamber to the storing intracavity, realize the replacement, simultaneously, can judge at storing intracavity malleation pressure size, two usage of a characteristic, structural very ingenious through the degree of swelling of film.
Fifth, in this application, release compressed gas is the through-hole release through the pipe bottom, so set up in the bottom through-hole, and it can ensure that clean air can go out the original air replacement of storing intracavity completely, promotes the replacement dynamics.
Sixth, in this application, because be the malleation state at the storing intracavity, this is in comparatively long-term save process, can accomplish not contaminated completely, even there is revealing, also can ensure that the air in the storing intracavity can only beat the external world, and external air advances not to go, can not take place the convection current and just can not cause the pollution.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic cross-sectional view of the present invention.
Fig. 3 is a further schematic view of the seal cap structure of the present invention.
FIG. 4 is a schematic view of the compression bar mounting of the present invention.
FIG. 5 is an illustration of the effectiveness of the storage sampling tube of the present invention.
In the figure, a cylinder body 1, a baffle plate 1-1, a gas cavity 1-2, a storage cavity 1-3, a sealing cover 2, a rubber film 2-1, a first one-way valve 3, a second one-way valve 4, a guide pipe 5, a through hole 5-1, a lower retaining ring 5-2, a pressure rod 6, an upper retaining ring 6-1 and a spring 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, the present application discloses a replaceable positive pressure sampling tube sealing and storing device, which mainly includes two independent structural members, namely a cylinder 1 and a sealing cover 2;
for the structure of the barrel 1: the barrel 1 is internally provided with a baffle 1-1 which is generally arranged at the middle lower section of the barrel 1 in an integrated manner, the barrel 1 is divided into two independent chambers of a storage chamber 1-3 and a gas chamber 1-2 by the baffle 1-1, the storage chamber 1-3 is used for storing a sampling tube, and the gas chamber 1-2 is used for filling compressed gas; a sealing cover 2 is covered on the cylinder body 1, the sealing cover 2 and the cylinder body 1 are fixed in a threaded connection mode, and a sealing ring is arranged at the inner bottom of the sealing cover 2 and is matched with the edge of the cylinder opening of the cylinder body 1 in view of the sealing effect; the bottom of the cylinder body 1 is provided with a first one-way valve 3 (which can be a valve core, and has low cost and good effect) for filling compressed air, and clean compressed air is filled into the air cavity 1-2 through the first one-way valve 3;
a second one-way valve 4 is arranged on the baffle plate 1-1 and communicated with the storage cavity 1-3 and the gas cavity 1-2, the second one-way valve 4 is arranged at the central position, and the second one-way valve 4 controls the gas flow to flow into the storage cavity 1-3 from the gas cavity 1-2; the baffle 1-1 is provided with a conduit 5 in the modes of integral forming, screwing connection, bonding and the like, the conduit 5 covers the second one-way valve 4 therein, namely the second one-way valve 4 is positioned in the conduit 5, and the free end of the conduit 5 extends to the edge of the opening of the cylinder 1; meanwhile, through holes 5-1 are uniformly formed in the side face of the bottom of the guide pipe 5, and after the second one-way valve 4 is opened, compressed gas is discharged into the storage cavity 1-3 from the through holes 5-1, so that original air in the storage cavity 1-3 is gradually replaced; in the application, in order to manually control the opening of the second one-way valve 4, a pressure lever 6 capable of triggering the second one-way valve 4 to act is required, so that the core technical point in the application is that the pressure lever 6 is axially slidably mounted in the conduit 5, the diameter of the pressure lever 6 is smaller than the inner diameter of the conduit 5, and the second one-way valve 4 can be controlled to be opened by pressing the pressure lever 6; however, when the lower pressing rod 6 is pressed, the pressing rod 6 cannot rebound, and a part of compressed air can be discharged along the port of the conduit 5, which causes waste of the compressed air, in order to solve the two problems, an upper baffle ring 6-1 is integrally formed on the pressing rod 6, a lower baffle ring 5-2 is arranged in the conduit 5, a spring 7 is sleeved on the pressing rod 6 between the lower baffle ring 5-2 and the upper baffle ring 6-1, two ends of the spring 7 are respectively connected with the lower baffle ring 5-2 and the upper baffle ring 6-1, the outer diameter of the upper baffle ring 6-1 is matched with the inner diameter of the conduit 5, in the structure, after the pressing rod 6 is pressed down, the pressing rod 6 slides downwards along the axial direction of the conduit 5, so as to realize touch control opening of the second one-way valve 4 (such as a valve core), release of the compressed air is carried out, and after the pressing rod 6 is released, due to the action of the spring 7, the compression bar 6 can be rebounded to return, and meanwhile, due to the arrangement of the upper baffle ring 6-1, compressed gas can be effectively locked, so that the compressed gas is not easy to flow out of the top of the guide pipe 5, and waste is avoided.
In the present application, it is desired to provide positive pressure in the storage cavity 1-3, which means that after the sealing cover 2 is completely connected with the cylinder 1, the second one-way valve 4 can still be kept open, and the opening degree and time can be controlled, so that the purpose of positive pressure can be achieved, however, after the sealing cover 2 is covered in the cylinder 1, the pressure rod 6 cannot be controlled, in order to solve this problem, a circular hole is provided on the sealing cover 2, and the position of the circular hole corresponds to the pressure rod 6 (when the sealing cover 2 is mounted on the cylinder 1), a rubber membrane 2-1 is provided in the circular hole, the rubber membrane 2-1 is pressed, the rubber membrane 2-1 triggers the pressure rod 6 to move downwards to open the second one-way valve 4, thereby solving the problem of controlling the action of the pressure rod 6 after the sealing cover 2 is covered, and for forming positive pressure in the storage cavity 1-3, the phenomenon cannot be seen, the waste of compressed air is caused due to the fact that the positive pressure is too large, the positive pressure is not obvious and is difficult to perceive, therefore, the micro-positive pressure is kept in the storage cavity 1-3 to be the most ideal scheme, in order to achieve clear perception of the pressure in the storage cavity 1-3, the rubber membrane 2-1 can play a great role at the same time, when the rubber membrane 2-1 is continuously pressed to be slightly bulged, the situation that the interior of the storage cavity 1-3 is in a micro-positive pressure state at the moment can be known, the requirement is just met, the effect of the rubber membrane 2-1 at the position is very large, the structure is the structure for controlling the pressing rod 6, and the structure is a window for perceiving the pressure in the storage cavity 1-3, and the structure is very ingenious.
In this application, barrel 1 is glass or metal material, and this kind of material intensity is big, and itself does not have the peculiar smell.
In the application, when the pressure lever 6 is arranged in the conduit 5, the distance between the lower end of the pressure lever 6 and the first one-way valve 3 is 2-5mm, so that the technician can control the opening and closing of the second one-way valve 4 by micro motion when the operation is convenient.
In the application, in order to have better pressing hand feeling, the pressure head is arranged at the top end of the pressure rod 6, the rubber membrane 2-1 is directly contacted with the pressure head, the area of the pressure head is large, and the hand feeling is more comfortable when the pressure head is pressed.
When the sampling tube is put into the storage cavity 1-3, the sealing cover 2 is firstly covered on the cylinder body 1 without being screwed and fixed, a certain gap is formed between the sealing cover 2 and the cylinder body 1 at the moment, then the rubber film 2-1 is pressed for about 2-5 seconds, compressed air in the gas cavity 1-2 flows to the top from the bottom of the storage cavity 1-3, all original gas can be replaced, then the sealing cover 2 is screwed, and then the rubber film 2-1 is continuously pressed until the rubber film slightly bulges, at the moment, the internal of the storage cavity 1-3 is in a positive pressure state, so that the external air can be effectively prevented from entering the storage cavity 1-3, and the problem that the sampling tube is polluted in the transportation process is completely solved.
In addition, this application has another kind of embodiment, both with this device and inflator configuration use: the sampling pipe after on-site sampling is arranged in the storage cavity 1-3, the sealing cover 2 is screwed tightly, and then an inflator is used for inflating the gas cavity 1-2 on site; because the gas on site is the same as the air collected by the sampling tube, there is no contamination problem. After the gas cavity 1-2 is filled with compressed gas, the compressed gas in the gas cavity is enabled to enter the storage cavity 1-3 by pressing the rubber film 2-1, and a micro-tooth state is generated in the storage cavity, so that the compressed gas is supplemented into the storage cavity 1-3 by determining the need of the compressed gas to continuously keep a micro-positive pressure state in consideration of leakage (absolute sealing is difficult to achieve, and for a containing box, the cost requirement is low, so that the sealing is generally micro-leakage), and long-term storage can be realized.
It should be noted that the next time the gas chamber 1-2 is filled with gas, the remaining compressed gas therein needs to be completely discharged.
The technical scheme of this application, it has realized the zero pollution to the sampling pipe, and it is real effectual to accomplish data, very big reduction the existence of objective error, and this effect is very difficult to reach at present.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A replacement type positive pressure sampling tube sealing storage and transportation device comprises a cylinder body and a sealing cover; the method is characterized in that:
the cylinder body is internally provided with a baffle plate which divides the cylinder body into a storage cavity and two independent cavities of a gas cavity; a sealing cover is covered on the cylinder body; the bottom of the cylinder body is provided with a first one-way valve for filling compressed gas;
a second one-way valve is arranged on the baffle plate and used for communicating the storage cavity and the gas cavity, and the second one-way valve controls the air flow to flow into the storage cavity from the gas cavity; the baffle is provided with a conduit, the conduit covers the second one-way valve, and the free end of the conduit extends to the edge of the opening of the cylinder body;
through holes are uniformly formed in the side face of the bottom of the guide pipe; a lower baffle ring is arranged in the guide pipe;
a pressure rod is arranged in the guide pipe in a sliding manner along the axial direction, an upper retaining ring is arranged on the pressure rod, and a spring is arranged between the lower retaining ring and the upper retaining ring;
the sealing cover is provided with a circular hole, the position of the circular hole corresponds to that of the pressing rod, a rubber film is arranged in the circular hole, and the rubber film is pressed to touch the pressing rod to move downwards to open the second one-way valve.
2. The memory device of claim 1, wherein: the cylinder is made of glass or metal.
3. The memory device of claim 1, wherein: the sealing cover is fixed with the cylinder body in a threaded connection mode.
4. The memory device of claim 3, wherein: the inner bottom of the sealing cover is provided with a sealing ring, and the sealing ring is matched with the edge of the opening of the barrel body.
5. The memory device of claim 1, wherein: when the pressure lever is arranged in the conduit, the distance between the lower end of the pressure lever and the first one-way valve is 2-5 mm.
6. The memory device of any one of claims 1-5, wherein: the top end of the pressure lever is provided with a pressure head.
7. The memory device of any one of claims 1-5, wherein: the rubber membrane is connected with the sealing cover in a sealing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011499824.XA CN112478440A (en) | 2020-12-18 | 2020-12-18 | Sealed storage and transportation device for replaceable positive-pressure sampling pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011499824.XA CN112478440A (en) | 2020-12-18 | 2020-12-18 | Sealed storage and transportation device for replaceable positive-pressure sampling pipe |
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| Publication Number | Publication Date |
|---|---|
| CN112478440A true CN112478440A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011499824.XA Pending CN112478440A (en) | 2020-12-18 | 2020-12-18 | Sealed storage and transportation device for replaceable positive-pressure sampling pipe |
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| US20030182900A1 (en) * | 1998-09-10 | 2003-10-02 | Bowden Lisa A. | System and method for providing a regulated atmosphere for packaging perishable goods |
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| CN109969605A (en) * | 2017-12-28 | 2019-07-05 | 中核建中核燃料元件有限公司 | A kind of packing container stored and transported for product |
| CN209889494U (en) * | 2019-03-01 | 2020-01-03 | 南京明瑞光电技术有限公司 | Metal scandium storage device |
| CN211520240U (en) * | 2020-01-10 | 2020-09-18 | 锦州恒泰特种合金有限公司 | Alloy powder storage container |
-
2020
- 2020-12-18 CN CN202011499824.XA patent/CN112478440A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030182900A1 (en) * | 1998-09-10 | 2003-10-02 | Bowden Lisa A. | System and method for providing a regulated atmosphere for packaging perishable goods |
| CN206827323U (en) * | 2017-05-15 | 2018-01-02 | 中国科学院寒区旱区环境与工程研究所 | Carbon isotope analysis sample storage device in a kind of carbonate of dissolving |
| CN207550958U (en) * | 2017-11-29 | 2018-06-29 | 烟台硕博源生物技术有限公司 | A kind of pollution-free quantification of protein kit |
| CN109969605A (en) * | 2017-12-28 | 2019-07-05 | 中核建中核燃料元件有限公司 | A kind of packing container stored and transported for product |
| CN209889494U (en) * | 2019-03-01 | 2020-01-03 | 南京明瑞光电技术有限公司 | Metal scandium storage device |
| CN211520240U (en) * | 2020-01-10 | 2020-09-18 | 锦州恒泰特种合金有限公司 | Alloy powder storage container |
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Application publication date: 20210312 |