CN218464281U - A save set for filter membrane sample - Google Patents
A save set for filter membrane sample Download PDFInfo
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- CN218464281U CN218464281U CN202222903557.9U CN202222903557U CN218464281U CN 218464281 U CN218464281 U CN 218464281U CN 202222903557 U CN202222903557 U CN 202222903557U CN 218464281 U CN218464281 U CN 218464281U
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- filter membrane
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Abstract
The utility model provides a storage device for filter membrane samples, which comprises a containing box and a plurality of filter membrane clamps arranged in the containing box, wherein the filter membrane clamps are formed by combining a base, a gasket and a pressing plate, the base is of an annular structure, the upper end surface of the base is provided with an annular step groove for placing a filter membrane, and the side wall of the annular step groove is provided with a notch; the whole pressing plate is also of an annular structure, the lower end surface of the pressing plate is provided with an annular boss, and the annular boss is in threaded connection with the annular stepped groove; the gasket is placed on the upper surface of the filter membrane, the outer side wall of the gasket is provided with a handle, and the handle is in clearance fit with the notch. The utility model can effectively prevent the surface of the filter membrane sample from scraping with other objects in the taking and placing process, and improve the safety of the transportation process; the filter membrane clamp can be directly placed in the sampling device only by changing the shape of the placement position of the filter membrane in the sampling device, so that the assembly and disassembly efficiency of the filter membrane is improved.
Description
Technical Field
The utility model relates to a filter membrane detection technology specifically is a save set for filter membrane sample.
Background
The membrane sampling method is widely applied to fluid detection technologies, such as concentration determination of total suspended particulate matters in the atmosphere, and determination of microorganisms in the atmosphere and water. The concentration of the total suspended particles in the atmosphere is generally measured by a filter membrane weighing method. The principle is that a certain amount of atmosphere is extracted and passes through an air filter membrane arranged in a sampling device, suspended particles are retained on the filter membrane, and the mass concentration of total suspended particles can be calculated according to the weight difference of the filter membrane before and after sampling and the volume of gas.
In the process of using the filter membrane for sampling, in order to ensure that the sampling process is not interfered, real and effective, the filter membrane is not allowed to be touched by hands in the sampling process, the filter membrane is flatly fixed in the detection device, and after the sampling is finished, the filter membrane is required to be not folded and bent so as to prevent the loss of attachments on the filter membrane. Thus, the filter membrane is cumbersome to install and handle in the sampling device. In the prior art, the filter membrane is fixed in the sampling device by pressing a fixing ring on a gas path section matched with the appearance of the filter membrane, the gas path section is a groove on the section of a pipeline, tweezers are used when the filter membrane is installed and taken and placed, the tweezers are required to be lightly taken and placed, when the filter membrane is taken out, the filter membrane is not taken out due to the fact that the filter membrane is located in the groove, the force is too small, the force is slightly large, the filter membrane is easy to wrinkle and deform, and sampling failure is caused.
Meanwhile, in order to accurately measure the mass change of the filter membrane after sampling, constant weight treatment needs to be carried out in a laboratory before the filter membrane is sampled, and after sampling, the filter membrane sample is taken back to the laboratory to be weighed again and subjected to various metering. Therefore, storage and transportation of filter membrane samples is also critical. In the prior art, most filter membrane samples are placed in plastic belts, and some filter membrane samples are placed in plastic boxes of original packages, so that the surfaces of the filter membranes are very easy to touch in the placing process; the filter membrane is not fixed during the conveying process, and the loss of attachments on the filter membrane is easily caused, which all affect the final detection result.
Disclosure of Invention
To the problem that provides in the background art, the utility model aims at providing a save set for filter membrane sample, the problem of depositing when at first solving the filter membrane sample transportation, secondly also further improve getting of filter membrane in sampling device and put efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a storage device for filter membrane samples comprises an accommodating box and a plurality of filter membrane clamps arranged in the accommodating box, wherein each filter membrane clamp is formed by combining a base, a gasket and a pressing plate, the base is integrally of an annular structure, an annular step groove for placing a filter membrane is formed in the upper end face of the base, and a gap is formed in the side wall of the annular step groove; the whole pressing plate is also of an annular structure, the lower end surface of the pressing plate is provided with an annular boss, and the annular boss is in threaded connection with the annular stepped groove; the gasket is placed on the upper surface of the filter membrane, the outer side wall of the gasket is provided with a handle, and the handle is in clearance fit with the notch.
Hold the box and form by box body and lid combination, be equipped with first die cavity in the lid, be equipped with the second die cavity in the box body, first die cavity and second die cavity constitute jointly and are used for holding the total die cavity that the filter membrane pressed from both sides, the interior profile of total die cavity matches with the appearance that the filter membrane pressed from both sides and suits.
The box cover is movably hinged to one side of the box body, and the first cavity and the second cavity are symmetrical to each other.
The inner diameters of the base, the pressure plate and the gasket are the same.
The outer diameter of the gasket is matched with the inner diameter of the annular step groove.
The utility model has the advantages that:
(1) The filter membrane is fixed at the periphery of the filter membrane by adopting a filter membrane clamp, so that the originally soft filter membrane is always kept in a flat and independent state, and the surface of a filter membrane sample can be effectively prevented from being scraped with other objects in the taking and placing process; the filter membrane sample is directly deposited in holding the die cavity of box together with the filter membrane clamp, owing to there is the handle restriction of packing ring, and the filter membrane clamp can not be holding the box internal rotation, can keep firm state, improves the security of transportation.
(2) The shape of the filter membrane placing position in the sampling device is changed only, the filter membrane placing position is made to be consistent with the shape of the filter membrane clamp, the filter membrane clamp can be directly placed in the sampling device, the filter membrane is clamped by the filter membrane, the filter membrane clamp can be directly taken by a hand when the filter membrane is taken and placed in the sampling device, and the filter membrane assembling and disassembling efficiency is improved.
Drawings
Fig. 1 is a front view of the overall structure of the present invention.
Fig. 2 is a top view of the overall structure of the present invention.
FIG. 3 is a front view of the filter membrane holder and the filter membrane assembly.
Fig. 4 is a top view of the base.
Fig. 5 is a bottom view of the platen.
Fig. 6 is a top view of the gasket.
In the figure, 1, a containing box, 2, a filter membrane clamp, 3, a filter membrane, 11, a box body, 12, a box cover, 21, a base, 22, a gasket, 23, a pressing plate, 111, a second cavity, 121, a first cavity, 211, an annular step groove, 212, a notch, 221, a handle, 231 and an annular boss.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-4, the utility model provides a storage device for filter membrane samples, which comprises a containing box 1 and a plurality of filter membrane clamps 2 arranged in the containing box 1, wherein the filter membrane clamps 2 are composed of a base 21, a gasket 22 and a pressing plate 23, the base 21 is of an annular structure, the upper end surface of the base is provided with an annular step groove 211 for placing a filter membrane, and the side wall of the annular step groove 211 is provided with a notch 212; the whole pressing plate 23 is also of an annular structure, the lower end surface of the pressing plate is provided with an annular boss 231, specifically, the annular boss 231 is provided with an external thread, the annular step groove 211 is provided with an internal thread, and the annular boss 231 is in threaded connection with the annular step groove 211; the washer 22 is placed on the upper surface of the filter membrane 3, and the outer side wall of the washer 22 is provided with a handle 221, and the handle 221 is in clearance fit with the notch 212. The handle 221 has the functions of facilitating the taking out of the filter membrane clamp 2 from the filter membrane box 1, and preventing the washer from rotating and the filter membrane from wrinkling and deforming when the pressing plate 23 and the base 21 are screwed tightly; and the notch 212 also serves to facilitate the removal of the filter membrane 3 from the annular step groove 211 using forceps.
Hold box 1 and form by box body 11 and lid 12 combination, be equipped with first die cavity 121 in the lid 12, be equipped with second die cavity 111 in the box body 11, first die cavity 121 and second die cavity 111 constitute the total die cavity that is used for holding filter membrane clamp 2 jointly, the interior profile of total die cavity matches with the appearance that filter membrane clamp 2 and suits.
The utility model discloses a use method as follows: firstly, placing the filter membrane 3 in the annular step groove 211 of the base 21 by using tweezers, then holding the handle 221 of the gasket 22 by hands, placing the gasket into the annular step groove 211, covering the periphery of the surface of the filter membrane 3, and finally, aligning the annular boss 231 on the pressing plate 23 with the annular step groove 211 and screwing in the annular boss to press the gasket, thereby completing the fixation of the filter membrane 3; when sampling, the filter membrane clamp 2 provided with the filter membrane 3 is directly arranged in a sampling device; after sampling is finished, the filter membrane clamps 3 are tightly arranged in the accommodating box 1, and as the inner contour of the overall cavity of the accommodating box 1 is matched with the appearance of the filter membrane clamp 2, when the accommodating box 1 is closed, the handle 221 can prevent the filter membrane clamp 2 from rotating, so that the stability of the transportation process is ensured; when the filter membrane clamp 2 needs to be taken out from the containing box 1, the containing box 1 is opened, one gasket 22 is pulled by fingers, the filter membrane clamp is rotated by 90 degrees, and then the handle 221 is pulled, so that the filter membrane clamp 2 can be conveniently taken out.
The box cover 12 is movably hinged on one side of the box body 11, and the first cavity 121 and the second cavity 111 are symmetrical to each other.
The inner diameters of the base 21, the pressure plate 23 and the gasket are the same.
The outer diameter of the washer 22 is matched with the inner diameter of the annular step groove 211.
The utility model provides a hold box 1, base 21, clamp plate 23 and all adopt polyethylene material injection moulding, packing ring 22 can use rigid plastic, also can use metal materials such as stainless steel, and the cost of manufacture is low.
The part of the utility model not detailed is prior art.
Claims (5)
1. The utility model provides a save set for filter membrane sample, includes and places a plurality of filter membrane clamp (2) that hold in box (1) in holding box (1), characterized by: the filter membrane clamp (2) is formed by combining a base (21), a gasket (22) and a pressing plate (23), the base (21) is integrally of an annular structure, an annular step groove (211) for placing the filter membrane is formed in the upper end face of the base, and a notch (212) is formed in the side wall of the annular step groove (211); the whole pressure plate (23) is also of an annular structure, the lower end surface of the pressure plate is provided with an annular boss (231), and the annular boss (231) is in threaded connection with the annular stepped groove (211); the gasket (22) is placed on the upper surface of the filter membrane (3), the outer side wall of the gasket (22) is provided with a handle (221), and the handle (221) is in clearance fit with the notch (212).
2. A filter membrane sample containment device as claimed in claim 1 in which: the filter membrane filter bag is characterized in that the accommodating box (1) is formed by combining a box body (11) and a box cover (12), a first cavity (121) is arranged in the box cover (12), a second cavity (111) is arranged in the box body (11), the first cavity (121) and the second cavity (111) jointly form a total cavity for accommodating the filter membrane clamp (2), and the inner contour of the total cavity is matched with the appearance of the filter membrane clamp (2).
3. A filter membrane sample containment device as claimed in claim 2 in which: the box cover (12) is movably hinged to one side of the box body (11), and the first cavity (121) and the second cavity (111) are symmetrical to each other.
4. A filter membrane sample containment device as claimed in claim 1 in which: the inner diameters of the base (21), the pressure plate (23) and the gasket are the same.
5. A filter membrane sample containment device as claimed in claim 1 in which: the outer diameter of the gasket (22) is matched with the inner diameter of the annular stepped groove (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222903557.9U CN218464281U (en) | 2022-11-02 | 2022-11-02 | A save set for filter membrane sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222903557.9U CN218464281U (en) | 2022-11-02 | 2022-11-02 | A save set for filter membrane sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218464281U true CN218464281U (en) | 2023-02-10 |
Family
ID=85149895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222903557.9U Active CN218464281U (en) | 2022-11-02 | 2022-11-02 | A save set for filter membrane sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218464281U (en) |
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2022
- 2022-11-02 CN CN202222903557.9U patent/CN218464281U/en active Active
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