Sampling device for chemical laboratory analysis

Abstract

The utility model discloses a sampling device for chemical assay analysis. The sampling device comprises a sampling tube, the push rod is pushed to enable the push sleeve to push the liquid extraction plug to the inner bottom surface of the sampling tube, then the liquid extraction tube is inserted into a sample to be tested, the push rod is pulled to enable the liquid extraction plug to reset, and in the resetting process, vacuum is formed in the sampling tube, so that the sample to be tested is extracted into the cavity of the sampling tube, and after the extraction is completed, the liquid extraction plug is pushed to the bottom surface of the sampling tube. The liquid extraction pipe is sealed by using the sealing plug, then the sealing plate on the fixing frame is taken down, and after the sampling pipe is turned over by 90 degrees, the pushing plug moves in the sampling pipe by rotating the screw rod, so that the sampling liquid enters the liquid outlet head from the sampling pipe and falls into the test tube, and the same amount of test samples can be titrated in a plurality of test tubes at one time; the titration speed is high, the titration amount of the solution in each test tube does not need to be measured, a large amount of time is saved, and the working efficiency of sample sampling is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a sampling device for chemical testing and analysis. Background Art

[0002] Chemical testing and analysis refers to the process of analyzing and testing substances in chemical production through certain methods and means to obtain information such as the composition, properties and structure of the substances. It is an important field of chemical analysis and can be widely used in all aspects of chemical production. It has important application value. In the process of chemical testing, it is usually necessary to use a sampling device to sample and test fluid samples, and in order to improve the accuracy of the test, multiple groups of control tests are usually carried out.

[0003] Currently, fluid samples are usually sampled using a sampling tube and then dripped into a test tube. However, when the sampling tube is used to sample fluid drugs, the sampling volume is small, so when a large number of control tests are conducted on a certain fluid sample, repeated sampling is required, and only one bottle can be dripped each time, resulting in low sampling efficiency and reducing the work efficiency of drug fluid sampling. Summary of the invention

[0004] The purpose of the utility model is to provide a sampling device for chemical analysis to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sampling device for chemical testing and analysis, comprising a sampling tube, the sampling tube is slidably connected with a liquid extraction plug, the top of the liquid extraction plug is fixedly connected with a pushing sleeve, the top of the pushing sleeve passes through the top surface of the sampling tube, a pushing rod is arranged inside the pushing sleeve, one side of the sampling tube is fixedly connected with a storage box, the storage box is slidably provided with a pushing plug, one side of the storage box is threadedly connected with a screw, one end of the screw is rotatably connected to one side of the pushing plug, the bottom end of the sampling tube is fixedly connected with a No. 1 connecting seat, the outer surface of the No. 1 connecting seat is threadedly connected with a liquid extraction tube, the other side of the sampling tube is fixedly connected with a plurality of No. 2 connecting seats, the outer surfaces of the plurality of No. 2 connecting seats are all threadedly connected with connecting seats, one end of the plurality of connecting seats are all fixedly connected with elastic hoses, and the other ends of the plurality of elastic hoses are all fixedly connected with liquid outlet heads.

[0006] As a further preferred embodiment of the present technical solution, the outer surfaces of the plurality of liquid outlet heads are fixedly connected with sliders, one side of the sampling tube is fixedly connected with a fixing frame, the interior of the fixing frame is slidably arranged with the outer surfaces of the plurality of sliders, a positioning through hole is penetrated through one side of the fixing frame, one side of the plurality of sliders are provided with a threaded groove, and the interior of the plurality of threaded grooves are threadedly connected with fixing bolts.

[0007] As a further preferred embodiment of the technical solution, both sides of the plurality of sliders are fixedly connected with limit blocks, a positioning groove is provided on one side wall inside the fixing frame, and the plurality of limit blocks are respectively slidably connected with the positioning groove and the inside of the positioning through hole.

[0008] As a further preferred embodiment of the present technical solution, the top and bottom ends of the fixing frame are fixedly connected with a socket, the two sockets are internally clamped with a clamping head, and one end of the two clamping heads is fixedly connected with a sealing plate.

[0009] As a further preferred embodiment of the present technical solution, an elastic sealing pad is fixedly connected inside the sealing plate, and one end of the elastic sealing pad is in close contact with one end of the plurality of liquid outlet heads.

[0010] As a further preferred embodiment of the present technical solution, one end of the push plug and one end of the liquid extraction plug are both fixedly connected with elastic rubber pads, one end of the liquid extraction tube is plugged with a sealing plug, and one side of the sampling tube is fixedly connected with a handle.

[0011] As a further preferred embodiment of the present technical solution, two guide grooves are symmetrically provided inside the pushing sleeve, and two clamping blocks are fixedly connected to the outer surface of the pushing rod at the lower edge, and the outer surfaces of the two clamping blocks are respectively slidably connected to the inside of the two guide grooves.

[0012] The utility model provides a sampling device for chemical analysis, which has the following beneficial effects:

[0013] (1) The utility model pushes the push rod to make the push sleeve push the liquid extraction plug to the bottom surface of the sampling tube, then inserts the liquid extraction tube into the sample to be tested, and then pulls the push rod to reset the liquid extraction plug. During the resetting process, a vacuum is formed inside the sampling tube, so the sample to be tested is drawn into the cavity of the sampling tube. After the extraction is completed, the liquid extraction tube is sealed with a sealing plug, and then the sealing plate on the fixed frame is removed. After the sampling tube is turned 90°, the push plug is moved in the sampling tube by rotating the screw rod, and the sampling liquid is simultaneously introduced from the sampling tube into the liquid outlet head and falls into the test tube, thereby realizing the titration of equal amounts of test samples in multiple test tubes at one time, with a fast titration speed and no need to measure the titration amount of the solution in each test tube, thus saving a lot of time and greatly improving the work efficiency of sample sampling.

[0014] (2) The utility model releases the pressure on the fixing frame by rotating the fixing bolt, and then moves the slider on the fixing frame to adjust the position of the liquid outlet head, which facilitates titration on vessels of different sizes and distances, thereby increasing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the sampling tube of the utility model;

[0017] Figure 3 This is an exploded schematic diagram of the structure between the liquid outlet head and the fixed frame of the utility model;

[0018] Figure 4 It is an exploded schematic diagram of the internal structure of the push sleeve of the utility model.

[0019] In the figure: 1. sampling tube; 2. storage box; 3. liquid extraction plug; 4. pushing sleeve; 5. screw; 6. pushing plug; 7. elastic rubber pad; 8. No. 1 connecting seat; 9. liquid extraction tube; 10. No. 2 connecting seat; 11. connecting seat; 12. elastic hose; 13. liquid outlet head; 14. slider; 15. limit block; 16. fixing frame; 17. positioning groove; 18. positioning through hole; 19. threaded groove; 20. fixing bolt; 21. clamping seat; 22. clamping head; 23. sealing plate; 24. elastic sealing pad; 25. pushing rod; 26. guide groove; 27. clamping block; 28. handle; 29. ​​sealing plug. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1-2 As shown, in this embodiment, a sampling device for chemical testing and analysis includes a sampling tube 1, a liquid extraction plug 3 is slidably connected inside the sampling tube 1, a push sleeve 4 is fixedly connected to the top of the liquid extraction plug 3, the top of the push sleeve 4 passes through the top surface of the sampling tube 1, a push rod 25 is arranged inside the push sleeve 4, one side of the sampling tube 1 is fixedly connected to a storage box 2, a push plug 6 is slidably arranged inside the storage box 2, one side of the storage box 2 is threadedly connected to a screw 5, one end of the screw 5 is rotatably connected to one side of the push plug 6, and the bottom end of the sampling tube 1 is fixedly connected to a No. 1 connection A through seat 8, the outer surface of the No. 1 connecting seat 8 is threadedly connected with a liquid extraction tube 9, and the other side of the sampling tube 1 is fixedly connected with multiple No. 2 connecting seats 10, and the outer surfaces of multiple No. 2 connecting seats 10 are all threadedly connected with connecting seats 11, and one end of multiple connecting seats 11 is fixedly connected with an elastic hose 12, and the other end of multiple elastic hoses 12 is fixedly connected with a liquid outlet head 13, wherein, by setting a storage box 2, the push plug 6 can be stored to prevent the liquid extraction plug 3 from being blocked, and by setting a screw 5, the titration sample can be finely adjusted.

[0022] like Figure 2 and Figure 3As shown, the outer surfaces of the plurality of liquid outlet heads 13 are fixedly connected with sliders 14, one side of the sampling tube 1 is fixedly connected with a fixing frame 16, the interior of the fixing frame 16 is slidably arranged with the outer surfaces of the plurality of sliders 14, a positioning through hole 18 is penetrated through one side of the fixing frame 16, one side of the plurality of sliders 14 are provided with threaded grooves 19, and the interiors of the plurality of threaded grooves 19 are threadedly connected with fixing bolts 20, the fixing frame 16 is provided to fix the slider 14, and the fixing bolt 20 is provided to fix the slider 14, thereby improving stability.

[0023] like Figure 3 As shown, the two sides of multiple sliders 14 are fixedly connected with limiting blocks 15, a positioning groove 17 is provided on one side wall inside the fixing frame 16, and the multiple limiting blocks 15 are respectively slidably connected with the positioning groove 17 and the positioning through hole 18. By setting the limiting blocks 15, the positioning groove 17 and the positioning through hole 18, the sliders 14 can be limited to prevent them from falling off.

[0024] like Figure 3 As shown, the top and bottom ends of the fixing frame 16 are fixedly connected with a holder 21 , the two holders 21 are internally clamped with a clamp head 22 , and one end of the two clamp heads 22 is fixedly connected with a sealing plate 23 , which can seal the liquid outlet head 13 .

[0025] As shown in FIG. 3 , an elastic sealing pad 24 is fixedly connected inside the sealing plate 23 , and one end of the elastic sealing pad 24 is in close contact with one end of the plurality of liquid outlet heads 13 , thereby improving the sealing performance of the liquid outlet heads 13 .

[0026] like Figure 1 and Figure 2 As shown, one end of the push plug 6 and one end of the liquid extraction plug 3 are fixedly connected with an elastic rubber pad 7, one end of the liquid extraction tube 9 is plugged with a sealing plug 29, and one side of the sampling tube 1 is fixedly connected with a handle 28. By setting the handle 28, the sampling tube 1 can be easily taken.

[0027] like Figure 4 As shown, two guide grooves 26 are symmetrically provided inside the pushing sleeve 4, and two clamping blocks 27 are fixedly connected to the outer surface of the pushing rod 25 at the lower edge position. The outer surfaces of the two clamping blocks 27 are respectively slidably connected to the inside of the two guide grooves 26, which can control the length of the pushing rod 25 and facilitate storage.

[0028] The utility model provides a sampling device for chemical testing and analysis, and the specific working principle is as follows:

[0029] The staff pushes the push rod 25 to make the push sleeve 4 push the liquid extraction plug 3 to the bottom surface of the sampling tube 1, and then inserts the liquid extraction tube 9 into the sample to be tested, and then pulls the push rod 25 to reset the liquid extraction plug 3. During the resetting process, a vacuum is formed inside the sampling tube 1, so the sample to be tested is drawn into the cavity of the sampling tube 1. After the extraction is completed, the liquid extraction tube 9 is sealed with the sealing plug 19, and then the sealing plate 23 on the fixed frame 16 is removed. After the sampling tube 1 is turned 90°, the push plug 6 is moved in the sampling tube 1 by rotating the screw 5, and the sampling liquid is simultaneously introduced from the sampling tube 1 into the liquid outlet head 13 and falls into the test tube, and equal amounts of titration samples are performed on multiple test tubes at one time.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for chemical analysis, comprising a sampling tube (1), characterized in that: The sampling tube (1) is slidably connected to a liquid extraction plug (3) inside, the top of the liquid extraction plug (3) is fixedly connected to a push sleeve (4), the top of the push sleeve (4) passes through the top surface of the sampling tube (1), a push rod (25) is arranged inside the push sleeve (4), one side of the sampling tube (1) is fixedly connected to a storage box (2), the storage box (2) is slidably provided with a push plug (6), one side of the storage box (2) is threadedly connected to a screw (5), one end of the screw (5) is connected to the push plug (6) ) is rotatably connected on one side, the bottom end of the sampling tube (1) is fixedly connected to a No. 1 connecting seat (8), the outer surface of the No. 1 connecting seat (8) is threadedly connected to a liquid extraction tube (9), the other side of the sampling tube (1) is fixedly connected to a plurality of No. 2 connecting seats (10), the outer surfaces of the plurality of No. 2 connecting seats (10) are all threadedly connected to connecting seats (11), one end of the plurality of connecting seats (11) is fixedly connected to an elastic hose (12), and the other end of the plurality of elastic hoses (12) is fixedly connected to a liquid outlet head (13).

2. A sampling device for chemical analysis according to claim 1, characterized in that: The outer surfaces of the plurality of liquid outlet heads (13) are fixedly connected to sliders (14), one side of the sampling tube (1) is fixedly connected to a fixing frame (16), the interior of the fixing frame (16) is slidably arranged with the outer surfaces of the plurality of sliders (14), one side of the fixing frame (16) is provided with a positioning through hole (18), one side of the plurality of sliders (14) is provided with a threaded groove (19), and the interior of the plurality of threaded grooves (19) is threadedly connected to fixing bolts (20).

3. A sampling device for chemical analysis according to claim 2, characterized in that: Both sides of the plurality of slide blocks (14) are fixedly connected to limit blocks (15); a positioning groove (17) is provided on one side wall inside the fixing frame (16); and the plurality of limit blocks (15) are respectively slidably connected to the inside of the positioning groove (17) and the positioning through hole (18).

4. A sampling device for chemical analysis according to claim 3, characterized in that: The top and bottom ends of the fixing frame (16) are both fixedly connected to a clamping seat (21), a clamping head (22) is clamped inside the two clamping seats (21), and one end of the two clamping heads (22) is fixedly connected to a sealing plate (23).

5. A sampling device for chemical analysis according to claim 4, characterized in that: An elastic sealing pad (24) is fixedly connected inside the sealing plate (23), and one end of the elastic sealing pad (24) is in close contact with one end of the plurality of liquid outlet heads (13).

6. A sampling device for chemical analysis according to claim 1, characterized in that: One end of the push plug (6) and one end of the liquid extraction plug (3) are both fixedly connected to an elastic rubber pad (7), one end of the liquid extraction tube (9) is plugged with a sealing plug (29), and one side of the sampling tube (1) is fixedly connected to a handle (28).

7. A sampling device for chemical analysis according to claim 6, characterized in that: Two guide grooves (26) are symmetrically formed inside the pushing sleeve (4), and two clamping blocks (27) are fixedly connected to the outer surface of the pushing rod (25) at the lower edge position, and the outer surfaces of the two clamping blocks (27) are respectively slidably connected to the inside of the two guide grooves (26).

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