CN210221583U - Negative pressure liquid sampler - Google Patents
Negative pressure liquid sampler Download PDFInfo
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- CN210221583U CN210221583U CN201920795181.XU CN201920795181U CN210221583U CN 210221583 U CN210221583 U CN 210221583U CN 201920795181 U CN201920795181 U CN 201920795181U CN 210221583 U CN210221583 U CN 210221583U
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Abstract
A negative pressure liquid sampler comprises a sampling bottle, wherein a sealing plug is arranged on a bottle mouth of the sampling bottle, an air exhaust hole and a sample inlet hole are longitudinally arranged on the sealing plug, an air exhaust pipe is inserted in the air exhaust hole, a sample inlet pipe is inserted in the sample inlet hole, the lower ends of the sample inlet pipe and the air exhaust pipe are in sealed connection with the air exhaust hole at intervals at the bottom of the sampling bottle, the sample inlet pipe is in sealed connection with the sample inlet hole, one end of the air exhaust pipe, which is positioned outside the sampling bottle, is connected with an air exhaust one-way valve and an air exhaust device, the air inlet end of the air exhaust one-way valve is connected with the air exhaust pipe, and the air outlet end of; the open end of the sampling tube, which is positioned outside the sampling bottle, is a sampling tube opening. The utility model provides a negative pressure liquid sampler can be at the inside multiple spot sample of liquid, and the sample of taking is representative to can take a sample in the constrictive container of oral area, application scope is wide, convenient to carry.
Description
Technical Field
The utility model relates to a sampler, especially a negative pressure liquid sampler belongs to sampling equipment technical field.
Background
In the production of alpha-linolenic acid, raw materials entering a factory need to be sampled, raw materials such as ethanol, sulfuric acid and the like are generally transported by adopting a tank truck, the raw materials are sampled by adopting a single-point cup type during factory inspection, in actual operation, the problem that a jacket is arranged in a tank is often encountered, or an inferior material with high density and a qualified product are mixed, and a layered lattice material is taken for being filled in order during sampling, so that unqualified materials enter the factory through quality inspection to cause economic loss. During production, also often need to get liquid sample in reation kettle, storage tank, various containers such as finished product jar, general sample mode is to use single-point cup formula or sampling spoon to take the sample, and single-point cup formula sample thief can only take the sample of a point, and the sample representativeness is poor to the sample cup needs to get into the container, can't take a sample to the narrow container of container mouth, and the sampling spoon can only obtain the sample on liquid top layer, can't take a sample to deep material, and the sample representativeness of taking is not strong, can't effectively reflect the actual conditions of production.
Disclosure of Invention
The utility model aims to provide a: the utility model provides a negative pressure liquid sampler can be when getting liquid tank wagon interior sample, need not the car and can take a sample to can be at the inside multiple spot sample of liquid, the sample of taking a sample is representative, and can take a sample in the constrictive container of oral area, and application scope is wide, convenient to carry.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a negative pressure liquid sampler comprises a sampling bottle, wherein a sealing plug is arranged on a bottle mouth of the sampling bottle, an air exhaust hole and a sample inlet hole are longitudinally arranged on the sealing plug, an air exhaust pipe is inserted in the air exhaust hole, a sample inlet pipe is inserted in the sample inlet hole, the lower ends of the sample inlet pipe and the air exhaust pipe are spaced from the bottom of the sampling bottle, the bottom end of the sample inlet pipe is lower than the bottom end of the air exhaust pipe, the air exhaust pipe is hermetically connected with the air exhaust hole, the sample inlet pipe is hermetically connected with the sample inlet hole, the sample inlet pipe is communicated with the outside of the sampling bottle, one end of the air exhaust pipe, which is positioned outside the sampling bottle, is connected with an air exhaust check valve and an air exhaust device, the air inlet end of the air exhaust check valve is connected with the; furthermore, the air extracting device is an air extracting ball, the ball body of the air extracting ball is a hollow soft elastic ball body, an air inlet and an air outlet are arranged on the air extracting ball, the air outlet end of the air extracting one-way valve is connected with the air inlet of the air extracting ball, an air outlet one-way valve is arranged on the air outlet of the air extracting ball, the air inlet end of the air outlet one-way valve is connected with the inner cavity of the air extracting ball, and the air outlet end of the air outlet one-way valve is communicated with the outside; furthermore, a through stop valve is arranged on the sealing plug, one end of the through stop valve is communicated with the inside of the sampling bottle, and the other end of the through stop valve is communicated with the outside; the sampling pipe is provided with a sampling pipe stop valve; furthermore, the sealing plug is an elastic sealing plug, the exhaust tube comprises a hard exhaust insertion tube and an exhaust hose, the exhaust insertion tube is inserted into the exhaust hole, the exhaust insertion tube and the elastic sealing plug are in interference fit, the exhaust insertion tube is hermetically connected with the exhaust hose, and the exhaust hose is connected with the exhaust ball through an exhaust check valve; the sampling tube comprises a hard sampling insertion tube, a sampling hose and a hard sampling tube, the sampling insertion tube is inserted into the sampling hole, the sampling insertion tube is in interference fit with the elastic sealing plug, one end of the sampling hose is hermetically connected with the sampling insertion tube, the other end of the sampling hose is hermetically connected with the sampling tube, and the hard sampling tube is a straight tube or an arc tube; furthermore, the sampling tube outside is provided with the scale along the sampling tube axial.
The utility model discloses an actively beneficial technological effect lies in: the utility model samples by the negative pressure air exhaust principle, most of the equipment is composed of hoses, is convenient to carry, is suitable for sampling containers with different heights and calibers, can sample at different depths and horizontal positions, has representative sampling, can control sampling amount by opening and closing a straight-through stop valve, is convenient to operate, is provided with scales on a sampling tube, can determine the sampling height, and can realize targeted sampling; and when the sampling tube sets up to the arc pipe, can just can take a sample in raw materials cars such as tank wagon without getting on the bus, can take the sample of the different degree of depth, prevent that the action of practising fraud from appearing in the raw materials of entering the factory to labour saving and time saving.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
In order to explain the utility model more fully, the following embodiment examples of the present invention are provided, which are only for the explanation of the present invention and do not limit the scope of the present invention.
The invention is explained in further detail with reference to the drawings, in which: 1. sampling a bottle; 2. a sealing plug; 3. an air suction cannula; 4. sampling and inserting a tube; 5. a sample introduction hose; 6. a sampling tube; 7. a straight-through stop valve; 8. an air extraction hose; 9. an air extraction one-way valve; 10. an air extraction ball; 11. an air outlet one-way valve; 12. a sampling port; 13. and a stop valve of the sample inlet pipe.
As shown in the figure: a negative pressure liquid sampler comprises a sampling bottle 1, wherein a bottle mouth of the sampling bottle is provided with a sealing plug 2, the sealing plug is an elastic sealing plug in the embodiment, the material of the elastic sealing plug can be made of elastic materials such as rubber, elastic plastic or cork, an air exhaust insertion tube 3 is inserted into an air exhaust hole of the sealing plug, and the air exhaust insertion tube and the elastic sealing plug are in interference fit, so that the air exhaust insertion tube and the sealing plug are kept sealed; the air exhaust intubation is hermetically connected with an air exhaust hose 8, the other end of the air exhaust hose is connected with an air inlet end of an air exhaust one-way valve 9, and an air outlet end of the air exhaust one-way valve is connected with an air inlet of an air exhaust ball 10; the utility model provides a check valve of bleeding and the check valve of giving vent to anger all can adopt the miniature gaseous check valve among the prior art like AKH series check valve, do not do here and describe repeatedly. The sampling hole of the sealing plug is inserted with a sampling insertion tube 4, the sampling insertion tube is in interference fit with the elastic sealing plug, so that the sealing between the sampling insertion tube and the sealing plug is kept, one end of a sampling hose 5 is in sealing connection with the sampling insertion tube, the other end of the sampling hose is in sealing connection with a hard sampling tube 6, a sampling port 12 is immersed into a sample to be sampled when sampling is carried out, a sampling ball is pinched, the air pressure in the sampling bottle is smaller than the external air pressure, a liquid sample enters the sampling bottle from the sampling tube, scales are axially arranged on the outer side of the sampling tube, the sampling depth can be directly read from the scales, if a container is deep, the length of the sampling hose can be counted into the sampling depth together, and accurate fixed-point sampling can; in the utility model, the sample introduction hose and the air exhaust hose can be made of elastic soft materials such as elastic rubber or elastic silica gel, and the inner diameters of the sample introduction hose and the air exhaust hose are slightly smaller than the outer diameters of the sample introduction cannula, the air exhaust cannula and the sampling tube, so that the sample introduction hose and the air exhaust hose can be hooped on the corresponding hard tubes and keep sealing; the sealing plug is also provided with a straight-through stop valve, one end of the straight-through stop valve is communicated with the sampling bottle, the other end of the straight-through stop valve is communicated with the outside, the straight-through stop valve is used for opening the straight-through stop valve to destroy the low-pressure state in the sampling bottle when one-point sampling reaches a preset sampling amount, so that the sampling flow is stopped, and then the sampling tube can be placed into another position to restart air extraction sampling, so that multi-point samples can be taken at one time, and the representativeness of the sampled samples is ensured; the lower extreme of advance kind intubate and the intubate of bleeding has the interval with the sampling bottle bottom, and the height that highly is less than the exhaust tube bottom of advancing kind socle can avoid advancing the kind and is inhaled in the exhaust tube, is provided with into kind pipe stop valve on advancing kind pipe, can cut off the sample liquid stream after the sample finishes.
The utility model samples by the negative pressure air exhaust principle, most of the equipment is composed of hoses, is convenient to carry, is suitable for sampling containers with different heights and calibers, can sample at different depths and horizontal positions, has representative sampling, can control sampling amount by opening and closing a straight-through stop valve, is convenient to operate, is provided with scales on a sampling tube, can determine the sampling height, and can realize targeted sampling; the sampling tube can set up to straight tube or arc, and the application scenario is extensive, can accomplish alone and need not the car and can take a sample under the car, can take the sample of the different degree of depth, prevents that the action of practising fraud from appearing in the raw materials of entering the factory, the material resources of using manpower sparingly.
After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.
Claims (5)
1. The utility model provides a negative pressure liquid sampler, includes the sample bottle, its characterized in that: the sampling bottle is characterized in that a sealing plug is arranged on a bottle opening of the sampling bottle, an air exhaust hole and a sample inlet hole are longitudinally formed in the sealing plug, an air exhaust pipe is inserted into the air exhaust hole, a sample inlet pipe is inserted into the sample inlet hole, the lower ends of the sample inlet pipe and the air exhaust pipe are spaced from the bottom of the sampling bottle, the height of the bottom end of the sample inlet pipe is lower than that of the bottom end of the air exhaust pipe, the air exhaust pipe is in sealing connection with the air exhaust hole, the sample inlet pipe is in sealing connection with the sample inlet hole, the sample inlet pipe is communicated with the outside of the sampling bottle, one end, located outside the sampling bottle, of the air exhaust pipe is connected with an air exhaust check valve and an air exhaust device, the air inlet.
2. A negative pressure liquid sampler according to claim 1 wherein: the air extractor is a hollow soft elastic ball body, an air inlet and an air outlet are arranged on the air extracting ball, the air outlet end of the air extracting one-way valve is connected with the air inlet of the air extracting ball, an air outlet one-way valve is arranged on the air outlet of the air extracting ball, the air inlet end of the air outlet one-way valve is connected with the inner cavity of the air extracting ball, and the air outlet end of the air outlet one-way valve is communicated with the outside.
3. A negative pressure liquid sampler according to claim 1 wherein: a straight-through stop valve is arranged on the sealing plug, one end of the straight-through stop valve is communicated with the sampling bottle, and the other end of the straight-through stop valve is communicated with the outside; and a sample inlet pipe stop valve is arranged on the sample inlet pipe.
4. A negative pressure liquid sampler according to claim 2 or 3 wherein: the sealing plug is an elastic sealing plug, the exhaust tube comprises a hard exhaust insertion tube and an exhaust hose, the exhaust insertion tube is inserted in the exhaust hole, the exhaust insertion tube and the elastic sealing plug are in interference fit, the exhaust insertion tube is hermetically connected with the exhaust hose, and the exhaust hose is connected with the exhaust ball through an exhaust check valve; the sampling tube comprises a hard sampling insertion tube, a sampling hose and a hard sampling tube, the sampling insertion tube is inserted into the sampling hole, one end of the sampling hose is hermetically connected with the sampling insertion tube, and the other end of the sampling hose is hermetically connected with the sampling tube; the hard sampling tube is a straight tube or an arc tube.
5. A negative pressure liquid sampler according to claim 4 wherein: the outside of the sampling tube is provided with scales along the axial direction of the sampling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920795181.XU CN210221583U (en) | 2019-05-30 | 2019-05-30 | Negative pressure liquid sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920795181.XU CN210221583U (en) | 2019-05-30 | 2019-05-30 | Negative pressure liquid sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210221583U true CN210221583U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920795181.XU Active CN210221583U (en) | 2019-05-30 | 2019-05-30 | Negative pressure liquid sampler |
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| CN (1) | CN210221583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514281A (en) * | 2021-04-26 | 2021-10-19 | 上海化工院检测有限公司 | Sampling device for residual liquid in barrel |
-
2019
- 2019-05-30 CN CN201920795181.XU patent/CN210221583U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514281A (en) * | 2021-04-26 | 2021-10-19 | 上海化工院检测有限公司 | Sampling device for residual liquid in barrel |
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