Special sampler for liquid chemicals

Abstract

The utility model discloses a special sampler for liquid chemicals, which comprises a sampling tube, the top of the sampling tube is movably provided with a limit seat, a stretching rod is arranged in the limit seat in a penetrating and sliding manner, the bottom of the stretching rod is fixedly provided with a rubber plug, the bottom of the stretching rod is fixedly provided with a limit scraper, and the limit scraper is fixedly provided with a rubber sleeve. The sampling device comprises a sampling tube, a rubber plug is arranged in the sampling tube, a limiting scraping plate is arranged in the sampling tube, the limiting scraping plate penetrates through the interior of the rubber plug and is located below the rubber plug, the outer surfaces of the rubber plug and the limiting scraping plate are tightly attached to the inner wall of the sampling tube, an abutting tube is fixedly installed at the bottom of the sampling tube, and an abutting piece is fixedly installed at the bottom of the abutting tube. The bottom contact piece is matched with the stepped liquid inlet, so that the mixing of sediments at the bottom of the container at the liquid inlet can be reduced in a liquid drawing manner, the practicability of the extracted sample is guaranteed, the influence of the mixed sediments on the use of the extracted sample is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid chemical sampling equipment, and in particular to a special sampler for liquid chemicals. Background Art

[0002] Chemicals refer to pure substances and mixtures composed of various elements, whether natural or artificial. According to the Chemical Abstracts Database, there are as many as 7 million chemicals in the world, which are also divided into different types such as liquids and solids. When sampling liquid chemicals, the use of sampling devices is extremely important. Therefore, this application proposes a new type of liquid chemical sampling device.

[0003] Patent document CN218854326U discloses a chemical reagent sampler, "including a base, an ear suction bulb, and a support frame fixed to the base, the support frame is symmetrically provided with slide rails, the slide rails are all vertically arranged, and the slide rails are slidably connected to a fixing component for fixing a pipette, the fixing component includes sliders symmetrically arranged and slidably connected to the slide rails respectively and a fixing sleeve fixed between the sliders, a pipette used in combination with the ear suction bulb is detachably connected in the fixing sleeve. The utility model solves the problem of inaccurate sampling caused by the need to hold a hand-held pipette to absorb reagents and the pipette is prone to shaking."

[0004] When in use, the above-mentioned device solves the problem of inaccurate sampling caused by the need to hold a handheld pipette to absorb reagents, and the pipette is prone to shaking. However, the use of the device still has certain shortcomings. When the device extracts samples, the samples will cause precipitation problems if stored in the container for a long time. The absorption of the sampling structure during extraction will be affected by the sediment, which will lead to impurity of the sample liquid and affect the needs of subsequent experimental use. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a special sampler for liquid chemicals;

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] It includes a sampling tube, a limiting seat is movably installed on the top of the sampling tube, a stretching rod slides through the inside of the limiting seat, a rubber plug is fixedly installed on the bottom of the stretching rod, a limiting scraper is fixedly installed on the bottom of the stretching rod, and the limiting scraper passes through the inside of the rubber plug and is located below the rubber plug, and the outer surfaces of the rubber plug and the limiting scraper are tightly fitted to the inner wall of the sampling tube, a resistance tube is fixedly installed on the bottom of the sampling tube, a resistance sheet is fixedly installed on the bottom of the resistance tube, a plurality of liquid inlets are equidistantly arranged on the outer surface of the resistance tube, and a drainage rod is fixedly installed in the middle of the top of the resistance sheet.

[0008] As an optional technical solution, a connecting cover is fixedly installed on the top of the stretching rod, and a pull ring is fixedly installed on the top of the connecting cover.

[0009] As an optional technical solution, the outer surface of the sampling tube is sleeved with an external sleeve, the inner wall of the external sleeve is fixedly installed with a rubber sleeve, and the rubber sleeve is sleeved on the outer surface of the sampling tube, and the outer surface of the external sleeve is embedded with a non-slip rubber sleeve.

[0010] As an optional technical solution, a threaded tube is fixedly installed at the bottom of the limit seat, and the threaded tube is threadedly connected to the inner wall of the sampling tube. Multiple sets of scraping rings are fixedly installed on the inner wall of the threaded tube, and the scraping rings are attached to the outer surface of the stretching rod.

[0011] As an optional technical solution, a glass sheet is embedded and installed on the outer surface of the sampling tube, and the outer surface of the glass sheet is provided with scale values.

[0012] As an optional technical solution, the rubber sleeve has a certain elasticity, and its inner wall is tightly connected to the outer surface of the sampling tube and the glass sheet.

[0013] The technical solution provided by the utility model has the following technical effects:

[0014] 1. The utility model provides a special sampler for liquid chemicals. Through the contact between the resistance tube and the liquid loading container, the bottom resistance piece cooperates with the stepped liquid inlet, and then when the liquid is drawn, the mixing of the sediment at the bottom of the container at the liquid inlet is reduced, thereby ensuring the practicality of the extracted sample, reducing the influence of the mixed sediment on the use of the sample after extraction, and increasing the practicality of the device.

[0015] 2. The utility model provides a special sampler for liquid chemicals. Through the sliding use of an external sleeve, after the sampling tube extracts the sample, the sleeve can be slid and raised on the external sleeve, so that the internal rubber sleeve can clean the residual liquid on the surface of the sampling tube, thereby reducing the waste and dripping pollution caused by attachment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present utility or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present utility. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural stereogram of the utility model;

[0018] Figure 2It is a cross-sectional schematic diagram of the resistance tube structure of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the external sleeve structure of the utility model;

[0020] Figure 4 It is a schematic cross-sectional view of the threaded pipe structure of the utility model.

[0021] In the figure: 1. sampling tube; 2. limit seat; 3. stretch rod; 4. rubber plug; 5. limit scraper; 6. resistance tube; 7. resistance sheet; 8. liquid inlet; 9. drainage rod; 10. connecting cover; 11. pull ring; 12. external sleeve; 13. rubber sleeve; 14. anti-slip rubber sleeve; 15. threaded tube; 16. scraper ring; 17. glass sheet. DETAILED DESCRIPTION

[0022] See also Figures 1 to 4 , a special sampler for liquid chemicals;

[0023] It comprises a sampling tube 1, a limiting seat 2 is movably installed on the top of the sampling tube 1, a stretching rod 3 is slidably penetrated inside the limiting seat 2, a rubber plug 4 is fixedly installed on the bottom of the stretching rod 3, a limiting scraper 5 is fixedly installed on the bottom of the stretching rod 3, and the limiting scraper 5 penetrates the inside of the rubber plug 4 and is located below the rubber plug 4, and the outer surfaces of the rubber plug 4 and the limiting scraper 5 are tightly fitted to the inner wall of the sampling tube 1, a resistance tube 6 is fixedly installed on the bottom of the sampling tube 1, a resistance sheet 7 is fixedly installed on the bottom of the resistance tube 6, a plurality of groups of liquid inlets 8 are equidistantly provided on the outer surface of the resistance tube 6, and a drainage rod 9 is fixedly installed in the middle of the top of the resistance sheet 7;

[0024] When the device is used for sampling chemical liquids, the front end of the sampling tube 1 is inserted into the container of the chemical liquid through the resistance tube 6, and then the stretching rod 3 is pulled to drive the rubber stopper 4 and the limiting scraper 5 to move up and down, so that the suction force generated inside the resistance tube 6 can absorb the liquid in the container through the liquid inlet 8 on the resistance tube 6, so that the liquid enters the sampling tube 1 for collection. After the liquid enters the resistance tube 6, it can enter the sampling tube 1 along the drainage rod 9. The resistance tube 6 can avoid direct contact between the resistance tube 6 and the bottom of the container through the resistance sheet 7, so that the liquid can enter the sampling tube 1 in a step-by-step manner through the liquid inlet 8, thereby reducing the entry of sediment at the bottom of the container.

[0025] A connection cover 10 is fixedly installed on the top of the stretching rod 3, and a pull ring 11 is fixedly installed on the top of the connection cover 10;

[0026] By providing the connecting cover 10 and the pull ring 11 on the top thereof, the stretching rod 3 can be pulled and adjusted by manual pulling, so as to conveniently carry out the liquid extraction work.

[0027] The outer surface of the sampling tube 1 is sleeved with an external sleeve 12, and a rubber sleeve 13 is fixedly installed on the inner wall of the external sleeve 12, and the rubber sleeve 13 is sleeved on the outer surface of the sampling tube 1. The outer surface of the external sleeve 12 is embedded with a non-slip rubber sleeve 14, and the rubber sleeve 13 has a certain elasticity, and its inner wall is tightly connected to the outer surface of the sampling tube 1 and the glass sheet 17;

[0028] After inserting the sampling tube 1 into the container to perform sampling, when taking out the sampling tube 1, the external sleeve 12 can be slid on the sampling tube 1 so that the liquid attached to the surface of the sampling tube 1 can be scraped through the rubber sleeve 13, thereby reducing the effect of excessive attachment of liquid on dripping when the device is taken out.

[0029] A threaded tube 15 is fixedly installed at the bottom of the limit seat 2, and the threaded tube 15 is threadedly connected to the inner wall of the sampling tube 1, and multiple groups of scraping rings 16 are fixedly installed on the inner wall of the threaded tube 15, and the scraping rings 16 are attached to the outer surface of the stretching rod 3;

[0030] The threaded tube 15 is provided to facilitate the installation and connection between the limit seat 2 and the sampling tube 1. When the stretching rod 3 moves in the sampling tube 1, the scraping ring 16 can scrape the liquid attached to the surface thereof, thereby reducing the attached residue of the liquid.

[0031] A glass sheet 17 is embedded and installed on the outer surface of the sampling tube 1, and a scale value is set on the outer surface of the glass sheet 17;

[0032] The glass sheet 17 is provided so as to observe the volume of the liquid inside the sampling tube 1, thereby assisting the sampling work.

[0033] Working principle: When the device is in use, the sampling tube 1 is inserted into the container for storing chemical liquid. The front end of the sampling tube 1 cooperates with the resistance tube 6 to penetrate into the interior of the container. The stretching rod 3 can be pulled to drive the movement of the rubber plug 4. The interior of the sampling tube 1 can absorb liquid through the liquid inlet 8 on the resistance tube 6 and discharge it by pushing. The inner wall of the sampling tube 1 can also be scraped by the scraping structure to scrape the residual liquid on its surface, thereby reducing the residue and assisting the sampling work.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A special sampler for liquid chemicals, comprising a sampling tube (1), characterized in that: A limit seat (2) is movably mounted on the top of the sampling tube (1), a stretching rod (3) is slidably penetrated inside the limit seat (2), a rubber plug (4) is fixedly mounted on the bottom of the stretching rod (3), a limit scraper (5) is fixedly mounted on the bottom of the stretching rod (3), and the limit scraper (5) penetrates inside the rubber plug (4) and is located below the rubber plug (4), and the outer surfaces of the rubber plug (4) and the limit scraper (5) are tightly fitted to the inner wall of the sampling tube (1), a resistance tube (6) is fixedly mounted on the bottom of the sampling tube (1), a resistance sheet (7) is fixedly mounted on the bottom of the resistance tube (6), a plurality of groups of liquid inlets (8) are equidistantly arranged on the outer surface of the resistance tube (6), and a drainage rod (9) is fixedly mounted in the middle of the top of the resistance sheet (7).

2. A special sampler for liquid chemicals according to claim 1, characterized in that: A connecting cover (10) is fixedly mounted on the top of the stretching rod (3), and a pull ring (11) is fixedly mounted on the top of the connecting cover (10).

3. The special sampler for liquid chemicals according to claim 1, characterized in that: The outer surface of the sampling tube (1) is sleeved with an external sleeve (12), the inner wall of the external sleeve (12) is fixedly mounted with a rubber sleeve (13), and the rubber sleeve (13) is sleeved on the outer surface of the sampling tube (1), and the outer surface of the external sleeve (12) is fitted with an anti-slip rubber sleeve (14).

4. The special sampler for liquid chemicals according to claim 1, characterized in that: A threaded tube (15) is fixedly mounted on the bottom of the limiting seat (2), and the threaded tube (15) is threadedly connected to the inner wall of the sampling tube (1), and a plurality of scraping rings (16) are fixedly mounted on the inner wall of the threaded tube (15), and the scraping rings (16) are fitted to the outer surface of the stretching rod (3).

5. The special sampler for liquid chemicals according to claim 1, characterized in that: A glass sheet (17) is embedded and installed on the outer surface of the sampling tube (1), and scale values ​​are arranged on the outer surface of the glass sheet (17).

6. The special sampler for liquid chemicals according to claim 3, characterized in that: The rubber sleeve (13) has a certain degree of elasticity, and its inner wall is tightly connected to the outer surfaces of the sampling tube (1) and the glass sheet (17).

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