CN216368035U

CN216368035U - Sampling membrane protection device

Info

Publication number: CN216368035U
Application number: CN202123147416.0U
Authority: CN
Inventors: 刘保峰; 曾强; 秦汝男; 李旭东
Original assignee: TIANJIN CENTER FOR DISEASE CONTROL AND PREVENTION
Current assignee: TIANJIN CENTER FOR DISEASE CONTROL AND PREVENTION
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-04-26
Anticipated expiration: 2031-12-15

Abstract

The application provides a sampling membrane protection device, which comprises a storage assembly and a sampling membrane, wherein the storage assembly comprises a storage bag for containing the sampling membrane, the storage bag is provided with a first opening, and a supporting part for enabling the storage bag to be always in an opening state is arranged in the storage bag; the sampling assembly can clamp the sampling membrane and is clamped with the storage assembly to enable the storage bag to be in a sealed state, on one hand, a supporting part for keeping the storage bag in a supporting state is arranged in the storage bag, and the sampling membrane can be prevented from contacting the inner wall of the storage bag in the process of conveying the sampling membrane; on the other hand, deposit the subassembly and sample the subassembly joint and make and deposit the bag and be in encapsulated situation, can avoid the oxidation of outside air to the sampling membrane to a certain extent, improved the accuracy nature that detects material concentration and detect on the sampling membrane.

Description

Sampling membrane protection device

Technical Field

The application relates to the technical field of experimental equipment, in particular to a sampling membrane protection device.

Background

With the development of industrialization, toxic and harmful gases become a source of danger that people have to face, and particularly, various toxic and harmful gases stored in a chemical plant workshop directly harm the life safety of workers. Phenylenediamine is one of the simplest aromatic diamines, is also a widely applicable intermediate, can be used for preparing azo dyes and high molecular polymers, and can also be used for producing fur coloring agents, rubber anti-aging agents, photo developers and the like, but phenylenediamine can absorb or suck dust through skin to cause poisoning, the dust has different effects on respiratory tracts, and symptoms such as rhinitis, bronchitis, frequent fever, special wheezing and nervousness caused by tracheitis can be caused. Therefore, the content of phenylenediamine in the analysis environment is very important.

And adsorbing the sample membrane soaked with sulfuric acid in a phenylenediamine environment, and analyzing the air quality of the sampling environment by analyzing the content of the phenylenediamine on the sample membrane. After sampling, in the process of transporting to a laboratory, the situation that the content of diphenylamine is reduced because a sampling film adsorbed with phenylenediamine shakes and touches the inner wall of a sampling device is easily caused. It is important to design a sampling device that avoids contact.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, the present application is directed to a sampling membrane protection device comprising:

the storage assembly comprises a storage bag used for accommodating the sampling film, the storage bag is provided with a first opening, and the inner wall of the storage bag is provided with a supporting part used for enabling the storage bag to be always in an opening state;

the sampling assembly can clamp the sampling film and is clamped with the storage assembly, so that the storage bag is in a sealed state.

According to the technical scheme that this application embodiment provided, be connected with the vacuum subassembly on depositing the subassembly, the vacuum subassembly include with deposit the exhaust tube that the bag is connected and with the evacuation machine that the exhaust tube is connected, the evacuation machine be used for follow deposit the interior extraction air of bag.

According to the technical scheme that this application embodiment provided, the sampling subassembly includes handheld portion and locates along the first direction the slide rail of handheld portion bottom, be equipped with two sliders rather than matching on the slide rail, every the slider is connected with the holder, two the holder can be followed first direction and slided, and clip the sampling membrane.

According to the technical scheme that this application embodiment provided, handheld portion bottom is equipped with joint spare, deposit the bag first opening part be equipped with the joint groove that joint spare matches.

According to the technical scheme that this application embodiment provided, the holder include with the crossbeam that sets up along the second direction that the slider is connected, and connect in the centre gripping arm at crossbeam both ends.

According to the technical scheme that this application embodiment provided, still including depositing the box, it includes a plurality of independent parking spaces to deposit the box, deposit the subassembly with can arrange in behind the sampling subassembly joint in the parking space.

In summary, the present application provides a sampling membrane protection device, which includes a storage assembly and a sampling assembly, wherein the sampling assembly can clamp a sampling membrane, and after sampling, the sampling membrane is placed in a storage bag of the storage assembly, on one hand, a support portion is provided in the storage bag to keep the sampling membrane in a support state, so that the sampling membrane can be prevented from contacting with the inner wall of the storage bag in the process of transporting the sampling membrane; on the other hand, deposit the subassembly and sample the subassembly joint and make and deposit the bag and be in encapsulated situation, can avoid the oxidation of outside air to the sampling membrane to a certain extent, improved the accuracy nature that detects material concentration and detect on the sampling membrane.

Drawings

Fig. 1 is a schematic front view of a sampling assembly and a storage assembly provided in an embodiment of the present application after being clamped;

fig. 2 is a schematic side view of a clamped sampling assembly and storage assembly according to an embodiment of the present disclosure.

The text labels in the figures are represented as:

1. a storage box body; 2. a sliding cover; 3. a partition plate; 4. a sampling component; 5. storing the assembly; 41. a hand-held portion; 42. a clamping member; 421. a cross beam; 422. a clamp arm; 43. a clamping piece; 44. a slider; 51. storing the bags; 52. a clamping groove; 54. a support portion; 6. sampling a membrane; 7. a vacuum assembly; 71. and an air exhaust pipe.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As mentioned in the background, the present application provides a protective device for a sampling membrane, as shown in fig. 1 and 2, for solving the problems of the prior art, comprising:

a storage assembly 5, including a storage bag 51 for accommodating the sampling membrane 6, wherein the storage bag 51 has a first opening, and the inner wall of the storage bag 51 is provided with a support part 54 for keeping the storage bag 51 in an expanded state all the time; preferably, deposit bag 51 is the cuboid, support portion 54 is the cuboid support of making by the polystyrene material, the support hugs closely deposit bag 51's inner wall deposit bag 51 first opening part, deposit bag 51 parcel and live the limit at the top of support has formed the bag body that is in the state of strutting all the time.

The sampling assembly 4 can clamp the sampling film 6 and is clamped with the storage assembly 5, so that the storage bag 51 is in a sealed state. The sampling assembly 4 and the storage assembly 5 are independently arranged, the sampling assembly 4 clamps the sampling film 6 for sampling during sampling, and after sampling is finished, the storage assembly 5 is clamped with the sampling assembly 4, so that the sampling film 6 is placed in the storage bag 51 of the storage assembly 5, and the storage bag 51 is always in a spread state, so that the sampling film 6 cannot contact the inner wall of the storage bag 51 due to shaking in the conveying process; in addition, the storage bag 51 is in a sealed state after the storage assembly 5 and the sampling assembly 4 are clamped, so that the sampling film 6 arranged in the storage bag 51 can avoid the oxidation of the outside air to a certain extent, and the accuracy of detecting the concentration of the substance is improved.

Further, a vacuum assembly 7 is connected to the storage assembly 5, the vacuum assembly 7 comprises an air suction pipe 71 connected to the storage bag 51 and a vacuum extractor connected to the air suction pipe 71, the vacuum-pumping machine is used for pumping air from the storage bag 51, preferably, the model of the vacuum-pumping machine is Kamoer KVP15-KJ-1, when the vacuum-pumping machine is not in working state, the vacuum-pumping machine is not connected with the air pumping pipe 71, when the storage assembly 5 and the sampling assembly 4 are clamped, the air exhaust pipe 71 is connected with the vacuumizing machine, and air in the storage bag 51 is extracted to enable the storage bag to be in a vacuum state, so that the sampling film 6 is always in a vacuum state in the conveying process, the oxidation of the air in the storage bag 51 to the sampling film 6 is prevented, and the accuracy of the concentration of the detection object of the sampling film 5 is improved.

Further, as shown in fig. 1 and fig. 2, the sampling assembly 4 includes a handheld portion 41 and a slide rail disposed at the bottom of the handheld portion 41 along a first direction, the slide rail is provided with two slide blocks 44 matching with the slide rail, each slide block 44 is connected with a clamping member 42, and the two clamping members 42 can slide along the first direction and clamp the sampling membrane 6. Preferably, handheld portion 41 is the rectangle, and the area is greater than deposit bag 51 first opening face conveniently takes, can cover deposit bag 51 first opening, the first direction is on a parallel with the minor face of handheld portion 41 bottom surface, the slide rail is located the central point of handheld portion 41 bottom surface puts, two holder 42 is followed first direction symmetric distribution, its structure is the same, two holder 42 opposite face is equipped with the first joint spare of mutually supporting, makes when two slider 44 is followed when first direction is close to the slip each other and hugs closely, two holder 42 joint will sampling membrane 6 arranges in two when holder 42 is middle, two holder 42 can with sampling membrane 6 is fixed.

Further, as shown in fig. 2, a clamping member 43 is disposed at the bottom of the handheld portion 41, and a clamping groove 52 matched with the clamping member 43 is disposed at the first opening of the storage bag 51. Preferably, two clamping grooves 52 are formed in the top surface of the storage bag 51 and on a relatively short support of the supporting portion 54 in the direction toward the sampling assembly 4, two clamping pieces 43 are arranged at positions of the bottom of the handheld portion 41 opposite to the two clamping grooves 52, and a sealing piece is wrapped outside the clamping pieces 43 to prevent air leakage from a gap, so that the storage bag 51 is sealed after the clamping pieces 43 and the clamping grooves 52 are clamped.

Further, as shown in fig. 2, the clamping member 42 includes a beam 421 connected to the slider 44 and disposed along the second direction, and clamping arms 422 connected to both ends of the beam 421. The second direction is parallel to the long side of the handheld portion 41, and is perpendicular to the first direction, the two clamping arms 422 are in a strip shape, one end of each clamping arm is fixed to the cross beam 421, and the other end of each clamping arm extends downwards from the cross beam 421; if the sampling membrane 6 is the rectangle, two the holder 42 can be fixed the trilateral of sampling membrane 6, on the one hand, it is right to have prevented when depositing bag 51 evacuation, because the wind pressure leads to sampling membrane 6 is in thereby rocking in depositing bag 51 meets deposit the condition of bag 51 inner wall, on the other hand, even in the transportation process, holder 42 drives sampling membrane 6 is followed when the slide rail slides, touch deposit bag 51 inner wall be the holder 42, but can not sampling membrane 6.

Example 2

On the basis of embodiment 1, as shown in fig. 1, the sampling film protection device further comprises a storage box body 1, wherein the storage box body 1 comprises a plurality of independent storage spaces, and the storage assembly 5 and the sampling assembly 4 can be placed in the storage spaces after being clamped. Deposit box 1 and be the cuboid, will through L type baffle deposit box 1 and divide into first space and second space, first space is located inside L type baffle, divide into a plurality of independencies with it through division board 3 storage space, L type baffle is outer to be the second space, the second space is used for depositing vacuum subassembly 7, L type baffle with deposit bag 51 the position that exhaust tube 71 is relative is equipped with the opening, be used for exhaust tube 71 passes the opening with the vacuum pump is connected. The top of the storage box body 1 is provided with a sliding cover 2, the bottom of the sliding cover 2 is provided with a sealing element, and when the storage box body 1 is closed, the storage box body can be in a sealing state.

The use method of the sampling membrane protection device comprises the following steps:

opening the sliding cover 2 of the storage box body 1, and taking out a group of clamped sampling assemblies 4 and storage assemblies 5;

separating the sampling assembly 4 from the storage assembly 5 and securing the sampling membrane 6 within the holder 42;

placing the holder 42 with the sampling membrane 6 in a sampling environment;

after sampling, placing the sampling film 6 in the storage assembly 5, and clamping the sampling assembly 4 and the storage assembly 5;

connecting the suction pipe 71 of the storage bag 51 and the vacuum member, and evacuating the storage bag 51 to a vacuum state;

and sampling for multiple times, closing the sliding cover 2 after sampling is finished, and conveying the storage box body 1 to a laboratory.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are no specific structures which are objectively limitless due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features mentioned above can be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.

Claims

1. A sampling membrane protection device, comprising:

a storage assembly (5) comprising a storage bag (51) for accommodating the sampling membrane (6), wherein the storage bag (51) is provided with a first opening, and the inner wall of the storage bag (51) is provided with a supporting part (54) for enabling the storage bag (51) to be always in an expanded state;

the sampling assembly (4) can clamp the sampling film (6) and is clamped with the storage assembly (5), so that the storage bag (51) is in a sealed state.

2. The sampling film protection device of claim 1, wherein: the storage assembly (5) is connected with a vacuum assembly (7), the vacuum assembly (7) comprises an air suction pipe (71) connected with the storage bag (51) and a vacuumizing machine connected with the air suction pipe (71), and the vacuumizing machine is used for sucking air from the storage bag (51).

3. The sampling film protection device of claim 1, wherein: sampling subassembly (4) are located including handheld portion (41) and along the first direction the slide rail of handheld portion (41) bottom, be equipped with on the slide rail rather than two sliders (44) that match, every slider (44) are connected with holder (42), two holder (42) can be followed first direction and slided, and can clip sampling membrane (6).

4. The sampling film protection device of claim 3, wherein: the bottom of the handheld portion (41) is provided with a clamping piece (43), and the first opening of the storage bag (51) is provided with a clamping groove (52) matched with the clamping piece (43).

5. The sampling film protection device of claim 3, wherein: the clamping piece (42) comprises a cross beam (421) connected with the sliding block (44) and arranged along the second direction, and clamping arms (422) connected to two ends of the cross beam (421).

6. The sampling film protection device of claim 1, wherein: still including depositing box (1), it includes a plurality of independent parking spaces to deposit box (1), deposit subassembly (5) with can arrange in behind sampling subassembly (4) the joint in the parking space.