Portable non-contact sampling device

Abstract

A portable non-contact sampling device relates to the technical field of sampling devices and comprises a sampling tube, two ends of the sampling tube are correspondingly connected with a liquid inlet valve body and a liquid outlet valve body, the sampling tube forms a closed sampling cavity through an area between the liquid inlet valve body and the liquid outlet valve body, and the sampling tube is connected with a detection nozzle. And the inlet end of the liquid inlet valve body is detachably connected with a container connecting structure. The utility model solves the problem that the accuracy of the detection result is influenced due to the fact that a storage tank or a tank car needs to be used for storage and transportation after acetonitrile production in the prior art, the storage tank or the tank car needs to be sampled and detected during the storage tank or the tank car, and the material is easy to contact with outside air in the actual sampling process.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, specifically to a portable non-contact sampling device. Background Technology

[0002] Acetonitrile is an organic compound that is highly volatile, has a distinctive odor similar to ether, and possesses excellent solvent properties, capable of dissolving a wide variety of organic, inorganic, and gaseous substances. It exhibits some toxicity, is infinitely miscible with water and alcohol, and undergoes typical nitrile reactions. It is used to prepare many typical nitrogen-containing compounds and is an important organic intermediate. In pharmaceutical engineering, the main raw materials for acetonitrile synthesis include acetic acid, liquid ammonia, and catalysts. Drug synthesis experiments are essential before pharmaceutical production. In existing pharmaceutical laboratories, operators typically use droppers to add various raw materials into containers for mixing and synthesis. Sampling and testing are required after each addition of different materials.

[0003] A prior art patent with publication number CN218823380U discloses a solution including a vessel body with a drive tube that rotates vertically. The drive tube is also vertically movable, with its lower end extending into the vessel body and threadedly connected to a lifting tube. The lower end of the lifting tube is sealed, and a sampling hole is formed on the peripheral wall near its lower end. This solves the problem in traditional devices where, during sampling of acetonitrile mixtures within the reactor, the acetonitrile mixture easily clogs the inlet, requiring frequent shutdowns for cleaning and reducing sampling efficiency.

[0004] As existing devices are used, the shortcomings of this technology have gradually become apparent, mainly in the following aspects:

[0005] Currently, acetonitrile production requires storage and transportation using storage tanks or tank trucks. During this process, sampling and testing of the storage tanks or tank trucks are necessary. In actual sampling, the material is easily exposed to the outside air, which affects the accuracy of the test results.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a portable non-contact sampling device to solve the problem that in traditional technologies, acetonitrile production requires storage and transportation in tanks or tank trucks, during which sampling and testing are necessary. In the actual sampling process, the material is easily exposed to the outside air, which affects the accuracy of the test results.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A portable non-contact sampling device includes a sampling tube with an inlet valve body and an outlet valve body connected to its two ends. The sampling tube forms a closed sampling cavity through the area between the inlet valve body and the outlet valve body. A detection nozzle is connected to the sampling tube. A container connection structure is detachably connected to the inlet end of the inlet valve body.

[0010] As an optimized solution, the container connection structure includes a container connector, a first feed pipe is fixedly connected to the container connector, and a second feed pipe is fixedly connected to the inlet end of the liquid inlet valve body. The first feed pipe and the second feed pipe are connected by a quick-connect assembly.

[0011] As an optimized solution, the quick-connect assembly includes mating discs respectively fixed to the ends of the first feed pipe and the second feed pipe, and the two mating discs are connected by clamps.

[0012] As an optimized solution, a sealing gasket is fitted between the two mating discs.

[0013] As an optimized solution, the sampling tube is provided with a first external thread section at both ends, and is connected to the inlet valve body and the outlet valve body through the first external thread section.

[0014] As an optimized solution, the end of the second feed pipe is provided with a second external thread section, and is connected to the inlet end of the liquid inlet valve body through the second external thread section.

[0015] As an optimized solution, the detection nozzle includes a detection tube vertically fixed to the sampling tube, and a sealing cap is threaded onto the end of the detection tube.

[0016] As an optimized solution, the clamp includes two opposing semicircular rings. The inner wall of each semicircular ring has a conformally shaped annular groove. The two mating discs are fitted into the annular groove. One end of each semicircular ring is fixedly connected to the other end. Locking plates are horizontally fixed to the outer walls of the other ends of each semicircular ring. Each locking plate has a groove. A locking stud is hinged within the groove of one locking plate. A locking knob is threaded onto the locking stud, and the handle of the locking knob abuts against the outer edge of the groove of the other locking plate.

[0017] As an optimized solution, the other end of the liquid outlet valve body is fixedly connected to a liquid outlet pipe.

[0018] As an optimized solution, the container connector includes a storage tank connector fixed to the end of the first feed pipe, and a tank truck connector is detachably connected inside the storage tank connector.

[0019] As an optimized solution, the tank connector has hinge holes on the opposite sidewalls, an eccentric disc is hinged in the hinge holes, and the outer wall of the tank truck connector has an annular locking groove that matches the eccentric disc.

[0020] As an optimized solution, a rubber pad is fixed to the inner end wall of the tank connector, and the inner end of the tank truck connector abuts against the rubber pad.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] When using it for sampling, connect it to the storage tank or tank truck using the container connector, and then fix the two docking plates together with clamps to install the sampling tube. Then open the inlet valve and the outlet valve and wait for some acetonitrile to drip from the outlet valve. Then close the inlet valve and the outlet valve. At this time, the acetonitrile will be stored in the sampling tube. Then release the clamp and remove the sampling tube. This process will not come into contact with the outside air, ensuring the accuracy of the subsequent testing process.

[0023] By transferring the removed sampling tube to the laboratory, connecting the sampling tube to the detection tube, and removing the sealing cap from the detection tube, the raw materials inside can be tested through the detection tube, which is convenient and quick. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the clamp of this utility model.

[0027] In the diagram: 1-Sampling tube; 2-Inlet valve body; 3-Outlet valve body; 4-Detection tube; 5-Sealing cap; 6-First external thread section; 7-First feed pipe; 8-Second feed pipe; 9-Second external thread section; 10-Connecting plate; 11-Sealing gasket; 12-Clamp; 13-Storage tank connector; 14-Tank truck connector; 15-Hinge hole; 16-Eccentric disc; 17-Handle; 18-Annular mounting groove; 19-Semi-circular ring; 20-Locking plate; 21-Gate; 22-Locking stud; 23-Locking knob. Detailed Implementation

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0029] like Figure 1 and Figure 2 As shown, the portable non-contact sampling device includes a sampling tube 1, with an inlet valve body 2 and an outlet valve body 3 connected to its two ends. The sampling tube 1 forms a closed sampling cavity through the area between the inlet valve body 2 and the outlet valve body 3. A detection nozzle is connected to the sampling tube 1, and a container connection structure is detachably connected to the inlet end of the inlet valve body 2.

[0030] The container connection structure includes a container connector, a first feed pipe 7 is fixedly connected to the container connector, and a second feed pipe 8 is fixedly connected to the inlet end of the liquid inlet valve body 2. The first feed pipe 7 and the second feed pipe 8 are connected by a quick-connect assembly.

[0031] The quick-connect assembly includes a mating disc 10 fixed to the ends of the first feed pipe 7 and the second feed pipe 8 respectively, and the two mating discs 10 are connected by a clamp 12.

[0032] A sealing gasket 11 is attached between the two mating discs 10.

[0033] The sampling tube 1 has a first external thread section 6 at both ends, and is connected to the inlet valve body 2 and the outlet valve body 3 through the first external thread section 6.

[0034] The second feed pipe 8 has a second external thread section 9 at its end, and is connected to the inlet end of the liquid inlet valve body 2 through the second external thread section 9.

[0035] The detection nozzle includes a detection tube 4 that is vertically fixed to the sampling tube 1, and a sealing cap 5 is threaded onto the end of the detection tube 4.

[0036] The clamp 12 includes two opposing semicircular rings 19. The inner wall of the semicircular rings 19 is provided with an annular groove. Two mating discs 10 are fitted into the annular groove. One end of the two semicircular rings is fixedly connected to each other. Locking plates 20 are horizontally fixed to the outer wall of the other end of the two semicircular rings. The two locking plates 20 are respectively provided with grooves 21. A locking stud 22 is hinged in the groove 21 of one locking plate 20. A locking knob 23 is threaded on the locking stud 22. The handle of the locking knob 23 abuts against the outer edge of the groove 21 of the other locking plate 20.

[0037] The other end of the outlet valve body 3 is fixedly connected to an outlet pipe.

[0038] The container connector includes a storage tank connector 13 fixed to the end of the first feed pipe 7, and a tank truck connector 14 is detachably connected inside the storage tank connector 13.

[0039] The tank connector 13 has hinge holes 15 on its opposite sidewalls, and an eccentric disc 16 is hinged in the hinge holes 15. The outer wall of the tank truck connector 14 has an annular mounting groove 18 that matches the eccentric disc 16.

[0040] A handle 17 is fixedly attached to the part of the eccentric disc 16 located outside the tank connector 13.

[0041] A rubber pad is fixed to the inner end wall of the storage tank connector 13, and the inner end of the tank truck connector 14 abuts against the rubber pad.

[0042] The structure of the container connector is common and can be used to connect corresponding valve pipes according to the outlet shape of different containers. Since it is not an innovation of this solution, it will not be elaborated on here.

[0043] The working principle of this device is as follows:

[0044] When sampling, the container connector is used to connect to the storage tank or tank truck. Then, the two docking plates 10 are fixed together with clamps 12 to install the sampling tube 1. Then, the inlet valve body 2 and the outlet valve body 3 are opened. After waiting for some acetonitrile to drip from the outlet valve body 3, the inlet valve body 2 and the outlet valve body 3 are closed. At this time, the acetonitrile will be stored in the sampling tube 1. Then, the clamps 12 are released and the sampling tube 1 can be removed. This process will not come into contact with the outside air, ensuring the accuracy of the subsequent testing process.

[0045] By transferring the removed sampling tube 1 to the laboratory, connecting the sampling tube 1 to the detection tube 4, and removing the sealing cap 5 from the detection tube 4, the internal raw materials can be tested through the detection tube 4, which is convenient and quick.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A portable, non-contact sampling device, characterized in that: Includes a sampling tube (1), with an inlet valve body (2) and an outlet valve body (3) connected to its two ends respectively. The sampling tube (1) forms a closed sampling cavity through the area between the inlet valve body (2) and the outlet valve body (3). A detection nozzle is connected to the sampling tube (1). The inlet end of the inlet valve body (2) is detachably connected to a container connection structure.

2. The portable contactless sampling device according to claim 1, characterized in that: The container connection structure includes a container connector, a first feed pipe (7) is fixedly connected to the container connector, and a second feed pipe (8) is fixedly connected to the inlet end of the liquid inlet valve body (2). The first feed pipe (7) and the second feed pipe (8) are connected by a quick-connect assembly.

3. The portable contactless sampling device according to claim 2, characterized in that: The quick-connect assembly includes docking discs (10) fixed to the ends of the first feed pipe (7) and the second feed pipe (8), respectively, and the two docking discs (10) are connected by clamps (12).

4. The portable contactless sampling device according to claim 3, characterized in that: A sealing gasket (11) is attached between the two mating discs (10).

5. The portable contactless sampling device according to claim 1, characterized in that: The sampling tube (1) has a first external thread section (6) at both ends, and is connected to the inlet valve body (2) and the outlet valve body (3) through the first external thread section (6).

6. The portable contactless sampling device according to claim 2, characterized in that: The second feed pipe (8) has a second external thread section (9) at its end, and is connected to the inlet end of the liquid inlet valve body (2) through the second external thread section (9).

7. The portable contactless sampling device according to claim 1, characterized in that: The detection nozzle includes a detection tube (4) that is vertically fixed to the sampling tube (1), and a sealing cap (5) is threaded onto the end of the detection tube (4).

8. The portable contactless sampling device according to claim 3, characterized in that: The clamp (12) includes two opposing semicircular rings (19). The inner wall of the semicircular ring (19) is provided with a shaped annular groove. The two mating discs (10) are fitted into the annular groove. One end of the two semicircular rings is fixedly connected to each other. The outer wall of the other end of the two semicircular rings is horizontally fixed with locking plates (20). The two locking plates (20) are respectively provided with grooves (21). A locking stud (22) is hinged in the groove (21) of one of the locking plates (20). A locking knob (23) is threaded onto the locking stud (22). The handle of the locking knob (23) abuts against the outer edge of the groove (21) of the other locking plate (20).

9. The portable contactless sampling device according to claim 1, characterized in that: The other end of the outlet valve body (3) is fixedly connected to an outlet pipe.

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