CN215339044U - Liquid sampling device for analytical chemistry - Google Patents
Liquid sampling device for analytical chemistry Download PDFInfo
- Publication number
- CN215339044U CN215339044U CN202121522296.5U CN202121522296U CN215339044U CN 215339044 U CN215339044 U CN 215339044U CN 202121522296 U CN202121522296 U CN 202121522296U CN 215339044 U CN215339044 U CN 215339044U
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- Prior art keywords
- sampling
- sealing
- connecting rod
- guide plate
- sampling cylinder
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- 238000005070 sampling Methods 0.000 title claims abstract description 87
- 239000007788 liquid Substances 0.000 title claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 86
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 210000004247 hand Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The liquid sampling device for analyzing chemistry comprises a sampling cylinder, a top cover and a limiting plate arranged in the sampling cylinder; the sampling cylinder is a transparent cylinder body, and the bottom of the sampling cylinder is provided with a horn-shaped guide plate; the guide plate is a porous plate; a sealing cover is arranged on the sampling cylinder, and a top cover is arranged on the sealing cover; the top cover and the sealing cover are provided with through vent holes; the limiting plate is fixed on the inner wall of the sampling cylinder and is positioned between the sealing cover and the guide plate; the limiting plate is provided with a through hole; the limiting plate, the sampling cylinder and the guide plate surround to form a sampling bin for containing liquid; the limiting plate, the sampling cylinder and the sealing cover surround to form an isolation bin; a connecting rod is arranged in the sampling cylinder, the top of the connecting rod penetrates through the sealing cover and the top cover, and a deflector rod is arranged at the top of the connecting rod; the bottom of the connecting rod penetrates through the limiting plate, and a sealing plug is arranged at the bottom of the connecting rod; the sealing plug and the guide plate have the same shape, the utility model has small volume and simple structure, and can be operated by one hand, thereby saving time and labor.
Description
Technical Field
The utility model relates to the technical field of sampling devices, in particular to a liquid sampling device for analytical chemistry.
Background
Analytical chemistry is a science of analytical methods and theories for studying chemical information such as composition, content, structure and morphology of substances, and is an important branch of chemistry. It is to identify which components are contained in a substance and what components the substance consists of, determine the relative amounts of the various components, and study the molecular structure or crystal of the substance. In analytical chemistry's experimental study, often all will relate to liquid sampling work, carry out liquid sampling analysis to adopt sampling device to carry out liquid sampling work, and current liquid sampling device needs both hands to operate, can cause certain inconvenience for the operator under some circumstances.
To solve the above problems, a liquid sampling device for analytical chemistry is proposed in the present application.
SUMMERY OF THE UTILITY MODEL
Objects of the utility model
The utility model provides a liquid sampling device for analytical chemistry, which aims to solve the technical problems that liquid sampling work is often involved in experimental research of analytical chemistry in the background technology, liquid sampling analysis is carried out, and a sampling device is adopted to carry out the liquid sampling work, while the existing liquid sampling device needs to be operated by two hands, so that certain inconvenience is brought to an operator under some conditions.
(II) technical scheme
In order to solve the problems, the utility model provides a liquid sampling device for analytical chemistry, which comprises a sampling cylinder, a top cover and a limiting plate arranged in the sampling cylinder;
the sampling cylinder is a transparent cylinder body, and the bottom of the sampling cylinder is provided with a horn-shaped guide plate; the guide plate is a porous plate; a sealing cover is arranged on the sampling cylinder, and a top cover is arranged on the sealing cover; the top cover and the sealing cover are provided with through vent holes;
the limiting plate is fixed on the inner wall of the sampling cylinder and is positioned between the sealing cover and the guide plate; the limiting plate is provided with a through hole; the limiting plate, the sampling cylinder and the guide plate surround to form a sampling bin for containing liquid; the limiting plate, the sampling cylinder and the sealing cover surround to form an isolation bin;
a connecting rod is arranged in the sampling cylinder, the top of the connecting rod penetrates through the sealing cover and the top cover, and a deflector rod is arranged at the top of the connecting rod; the bottom of the connecting rod penetrates through the limiting plate, and a sealing plug is arranged at the bottom of the connecting rod; the sealing plug is the same shape as the guiding plate.
Preferably, a sealing rubber strip is arranged on the periphery of the sealing plug; the sealing plug and the guide plate are matched to form a sealing structure.
Preferably, the sealing cover is provided with an installation groove; the periphery of the connecting rod is provided with a limiting part which is clamped in the mounting groove.
Preferably, a magnet is arranged in the mounting groove; the limiting piece and the magnet in the mounting groove are magnetically attracted.
Preferably, the transparent shell of the sampling tube is provided with scale marks for displaying the volume.
Preferably, a plurality of groups of strip-shaped anti-slip belts are arranged on the periphery of the deflector rod.
Preferably, the connecting rod is a hollow rod body.
The technical scheme of the utility model has the following beneficial technical effects:
1. the sealing plug is an elastic plug, and a sealing rubber strip is arranged on the periphery of the sealing plug; when the sealing plug is matched with the guide plate for installation, the sealing plug is elastically deformed, is conveniently stored in the guide plate and is tightly attached to the inner wall of the guide plate; meanwhile, the sealing rubber strip protruding out of the periphery of the sealing plug is clamped between the sealing plug and the guide plate, so that a sealing structure is formed between the sealing plug and the guide plate, and liquid leakage is prevented.
2. After the sealing plug forms seal structure with the deflector cooperation, the locating part this moment blocks in the mounting groove just, attracts mutually with the magnet magnetism in the mounting groove simultaneously, and the driving lever protrudes on the top cap to guarantee that the sample storehouse is the encapsulated situation, make things convenient for one-hand operation.
3. The connecting rod is a hollow rod body. The hollow rod body can reduce the weight of the whole sampling device, is lighter and can be operated by one hand.
Drawings
Fig. 1 is a schematic view of the overall structure of a chemical analysis liquid sampling device according to the present invention.
Fig. 2 is a schematic diagram of an internal structure of a sampling cylinder in the chemical analysis liquid sampling apparatus according to the present invention.
Fig. 3 is a schematic structural view of a chemical analysis liquid sampling apparatus according to the present invention in a state where a sealing plug is extended.
Fig. 4 is a schematic view of an installation position of a stopper in the chemical analysis liquid sampling device according to the present invention.
Reference numerals: 1. a sampling tube; 2. a top cover; 21. a sealing cover; 22. mounting grooves; 3. a deflector rod; 4. a vent hole; 5. a connecting rod; 6. a limiting plate; 61. a through hole; 7. a guide plate; 8. a sealing plug; 81. sealing rubber strips; 9. and a limiting member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-4, the liquid sampling device for analytical chemistry provided by the present invention comprises a sampling cylinder 1, a top cover 2 and a limiting plate 6 disposed inside the sampling cylinder 1;
the sampling tube 1 is a transparent tube body, and the bottom of the sampling tube 1 is provided with a horn-shaped guide plate 7; the guide plate 7 is a porous plate; a sealing cover 21 is arranged on the sampling tube 1, and a top cover 2 is arranged on the sealing cover 21; the top cover 2 and the sealing cover 21 are provided with through vent holes 4;
the limiting plate 6 is fixed on the inner wall of the sampling tube 1, and the limiting plate 6 is positioned between the sealing cover 21 and the guide plate 7; the limiting plate 6 is provided with a through hole 61; the limiting plate 6, the sampling cylinder 1 and the guide plate 7 surround to form a sampling bin for containing liquid; the limiting plate 6, the sampling cylinder 1 and the sealing cover 21 surround to form an isolation bin;
a connecting rod 5 is arranged in the sampling tube 1, the top of the connecting rod 5 penetrates through a sealing cover 21 and the top cover 2, and a deflector rod 3 is arranged at the top of the connecting rod 5; the bottom of the connecting rod 5 penetrates through the limiting plate 6, and a sealing plug 8 is arranged at the bottom of the connecting rod 5; the sealing plug 8 is of the same shape as the guide plate 7.
In an alternative embodiment, the sealing plug 8 is provided with a sealing bead 81 on its periphery; the sealing plug 8 cooperates with the guide plate 7 to form a sealing structure.
It should be noted that the sealing plug 8 is an elastic plug, and a sealing rubber strip 81 is arranged on the periphery of the sealing plug 8; when the sealing plug 8 is installed in a matched manner with the guide plate 7, the sealing plug 8 is elastically deformed, is accommodated in the guide plate 7 and is tightly attached to the inner wall of the guide plate 7; meanwhile, the sealing rubber strip 81 protruding out of the periphery of the sealing plug 8 is clamped between the sealing plug 8 and the guide plate 7, so that the sealing plug 8 and the guide plate 7 are guaranteed to form a sealing structure, and liquid leakage is prevented.
In an alternative embodiment, the sealing cover 21 is provided with a mounting groove 22; the connecting rod 5 is provided with a limiting piece 9 on the periphery, and the limiting piece 9 is clamped into the mounting groove 22. A magnet is arranged in the mounting groove 22; the limiting piece 9 is magnetically attracted with the magnet in the mounting groove 22.
It should be noted that, after the sealing plug 8 and the guide plate 7 are matched to form a sealing structure, the limiting member 9 at this time is just clamped in the mounting groove 22, and is attracted with the magnet in the mounting groove 22, and the shift lever 3 protrudes out of the top cover 2, so that the sampling bin is in a closed state, and the operation is convenient by one hand.
In an alternative embodiment, the transparent housing of the withdrawal chimney 1 is provided with graduation marks indicating the volume.
In an alternative embodiment, a plurality of sets of strip-shaped anti-slip bands are arranged on the periphery of the shift lever 3.
It should be noted that when the shift lever 3 is shifted, the anti-slip belt plays an anti-slip role, so that the use is safer.
In an alternative embodiment, the link 5 is a hollow rod.
It should be noted that the hollow rod body can reduce the weight of the whole sampling device, and is lighter and can be operated by one hand.
In the utility model, when sampling, the whole sampling cylinder 1 is cleaned and dried; then, the barrel body of the sampling barrel 1 is held by hand, and the sampling bin at the lower half part is placed below the liquid level of liquid to be sampled; then, the thumb presses the shift lever 3, and the shift lever 3 is pressed downwards; the limiting piece 9 on the connecting rod 5 is separated from the mounting groove 22, and the connecting rod 5 moves downwards; the whole sealing plug 8 is driven to be separated from the guide plate 7; at the moment, the liquid to be sampled can enter the sampling bin along the hole of the guide plate 7; in the utility model, the top cover 2 and the sealing cover 21 are provided with through vent holes 4, and the limiting plate 6 is provided with a through hole 61; the sampling bin and the external atmospheric pressure are the same; under the action of atmospheric pressure, the liquid to be sampled flows into the sampling bin and fills the whole sampling bin; then, the thumb pushes the shift lever 3 to move upwards to drive the connecting rod 5 to move upwards, the limiting piece 9 is clamped into the mounting groove 22, and the limiting piece 9 and the magnet in the mounting groove 22 are magnetically attracted; the sealing plug 8 is just clamped in the guide plate 7; the sealing plug 8 is an elastic plug, and a sealing rubber strip 81 is arranged on the periphery of the sealing plug 8; the sealing plug 8 is extruded to generate elastic deformation and is tightly attached to the inner wall of the guide plate 7; meanwhile, the sealing rubber strip 81 protruding out of the periphery of the sealing plug 8 is clamped between the sealing plug 8 and the guide plate 7, so that the sealing plug 8 and the guide plate 7 are guaranteed to form a sealing structure, and liquid leakage is prevented. After sampling, pressing the deflector rod 3 again; the liquid in the sampling bin can flow out through the guide plate, and the use is more convenient. The utility model has small volume and simple structure, and can be operated by one hand, thereby saving time and labor.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. The liquid sampling device for analyzing chemistry is characterized by comprising a sampling cylinder (1), a top cover (2) and a limiting plate (6) arranged inside the sampling cylinder (1);
the sampling cylinder (1) is a transparent cylinder body, and the bottom of the sampling cylinder (1) is provided with a horn-shaped guide plate (7); the guide plate (7) is a porous plate; a sealing cover (21) is arranged on the sampling cylinder (1), and a top cover (2) is arranged on the sealing cover (21); the top cover (2) and the sealing cover (21) are provided with through vent holes (4);
the limiting plate (6) is fixed on the inner wall of the sampling tube (1), and the limiting plate (6) is positioned between the sealing cover (21) and the guide plate (7); the limiting plate (6) is provided with a through hole (61); the limiting plate (6), the sampling cylinder (1) and the guide plate (7) surround to form a sampling bin for containing liquid; the limiting plate (6), the sampling cylinder (1) and the sealing cover (21) surround to form an isolation bin;
a connecting rod (5) is arranged in the sampling cylinder (1), the top of the connecting rod (5) penetrates through the sealing cover (21) and the top cover (2), and a deflector rod (3) is arranged at the top of the connecting rod (5); the bottom of the connecting rod (5) penetrates through the limiting plate (6), and a sealing plug (8) is arranged at the bottom of the connecting rod (5); the sealing plug (8) and the guide plate (7) are the same in shape.
2. Analytical chemical liquid sampling device according to claim 1, characterised in that the sealing plug (8) is provided with a sealing bead (81) on its periphery; the sealing plug (8) is matched with the guide plate (7) to form a sealing structure.
3. A liquid sampling device of analytical chemistry according to claim 1, characterised in that the sealing cap (21) is provided with a mounting groove (22); the periphery of the connecting rod (5) is provided with a limiting piece (9), and the limiting piece (9) is clamped into the mounting groove (22).
4. A liquid sampling device of analytical chemistry according to claim 3, characterised in that a magnet is arranged in the mounting groove (22); the limiting piece (9) is magnetically attracted with the magnet in the mounting groove (22).
5. Analytical chemical liquid sampling device according to claim 1, characterised in that the transparent casing of the sampling cartridge (1) is provided with graduation marks indicating the volume.
6. Analytical chemical liquid sampling device according to claim 1, characterised in that the driving lever (3) is provided on its periphery with a plurality of sets of strip-shaped anti-slip bands.
7. A liquid sampling device of analytical chemistry according to claim 1, characterised in that the connecting rod (5) is a hollow rod body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121522296.5U CN215339044U (en) | 2021-07-05 | 2021-07-05 | Liquid sampling device for analytical chemistry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121522296.5U CN215339044U (en) | 2021-07-05 | 2021-07-05 | Liquid sampling device for analytical chemistry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215339044U true CN215339044U (en) | 2021-12-28 |
Family
ID=79564990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121522296.5U Expired - Fee Related CN215339044U (en) | 2021-07-05 | 2021-07-05 | Liquid sampling device for analytical chemistry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215339044U (en) |
-
2021
- 2021-07-05 CN CN202121522296.5U patent/CN215339044U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211228 |