Sampling tube for detection

Abstract

A sampling tube for detection comprises an upper tube body, the lower end of the upper tube body is connected with a lower tube body through threads, a conical shell is formed at the lower end of the lower tube body, a lower tube is installed at the lower end of the conical shell, a lower cover is arranged at the lower end of the lower tube, a suction tube is communicated with the lower cover, an end cover is arranged at the upper end of the upper tube body, and a movable rod is arranged on the end cover in a penetrating mode. An inner pipe is connected into the lower pipe body through threads, an inner cover is connected to the upper end of the inner pipe through threads, a containing groove is formed in the inner side of the inner cover, cotton cloth is arranged in the containing groove, and the cotton cloth can prevent powder from entering the upper pipe body along with suction force of the suction cups. A movable pipe is arranged on the inner ring in a penetrating mode, a top ring is arranged at the lower end of the movable pipe, the lower end of the top ring acts on the lower cover, a plurality of inlet holes are formed in the upper end of the movable pipe, a limiting cover is arranged at the upper end of the movable pipe, a spring is arranged at the lower end of the movable pipe in a sleeving mode and located between the top ring and the inner ring, and remaining intermediates can be conveniently stored after sampling.

Description

Technical Field

[0001] The utility model relates to the technical field of drug detection, in particular to a sampling tube for detection. Background Art

[0002] After intermediate preparation is complete, sampling and testing are required. This testing provides clear information about the intermediate's purity, ensuring quality and allowing adjustments to the preparation process based on the sampling. Currently, testing typically involves sampling intermediate powders with a spoon. This can easily spill during sampling, and this sampling method can also easily contaminate the intermediate, affecting test results. Utility Model Content

[0003] The utility model provides a sampling tube for detection to solve the above-mentioned deficiencies of the prior art, solves the problem of inconvenience in sampling intermediates, and facilitates storage of remaining intermediates after sampling, thus having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0005] A sampling tube for detection includes an upper tube body, the lower end of the upper tube body is connected to the lower tube body by a thread, the lower end of the lower tube body is formed with a conical shell, the lower end of the conical shell is installed with a lower tube, the lower end of the lower tube is provided with a lower cover, the lower cover is connected to a suction pipe, the upper end of the upper tube body is provided with an end cover, the end cover is passed through a movable rod, the inner end of the movable rod is provided with a suction cup, when the suction cup moves in the upper tube body, the intermediate powder can be sucked through the suction pipe. The lower tube body is connected with an inner tube by a thread, the upper end of the inner tube is connected with an inner cover by a thread, the inner side of the inner cover is provided with a placement groove, and cotton cloth is provided in the placement groove. The cotton cloth can prevent the powder from entering the upper tube body with the suction of the suction cup. A plurality of holes are provided on the inner cover, the lower end of the inner tube is provided with an inner ring, and a movable tube is passed through the inner ring. The lower end of the movable tube is provided with a top ring, and the lower end of the top ring acts on the lower cover. A plurality of entry holes are provided on the upper end of the movable tube, and a limit cover is provided at the upper end of the movable tube. A spring is provided at the lower end of the movable tube, and the spring is located between the top ring and the inner ring. The inner tube arranged in the lower tube body can be taken out from the lower tube body. After sampling and testing are completed, the inner tube can be taken out to store the powder. Of course, a closing cover needs to be provided at the upper end of the inner tube during storage. At the same time, when the inner tube is taken out, the top ring loses its pushing force, so the movable tube moves downward under the action of the spring, and the entry will also be blocked, thereby facilitating storage. During testing, the inner cover can be removed and the powder can be taken.

[0006] Furthermore, in order to limit the position of the inner ring, a stop ring is provided in the lower tube, and the stop ring is located at the lower side of the inner ring.

[0007] Furthermore, in order to facilitate the pulling and drawing operation of the movable rod, an end cap is provided at the outer end of the movable rod.

[0008] Furthermore, in order to improve the sealing effect between the suction cup and the upper tube body, a plurality of rubber rings are provided on the outer circumference of the suction cup.

[0009] Furthermore, in order to facilitate the suction operation of the powder, the lower end of the conical shell is a small end.

[0010] Furthermore, in order to limit the extension length of the inner tube, a limiting ring is provided at the upper end of the inner tube.

[0011] Furthermore, in order to effectively seal the entry hole, a lower extending ring is provided at the lower end of the inner ring.

[0012] Furthermore, in order to facilitate the entry of powder, a conical inner shell is provided at the lower end of the inner tube. The conical inner shell is located inside the conical shell, and the lower end of the conical inner shell is the small end.

[0013] The advantages of the above technical solution are:

[0014] The utility model is convenient for sampling intermediate powders, can prevent the powders from being scattered during transfer, and is convenient for storing the powders. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0016] Figure 1 A three-dimensional structural diagram of one embodiment is shown.

[0017] Figure 2 A cross-sectional view of one embodiment is shown.

[0018] Figure 3 An enlarged view of point A is shown.

[0019] Figure 4 An enlarged view of point B is shown. DETAILED DESCRIPTION

[0020] like Figures 1 to 4 As shown, a sampling tube for detection includes an upper tube body 1, the lower end of the upper tube body 1 is connected to the lower tube body 15 by a thread, the lower end of the lower tube body 15 is formed with a conical shell 10, the lower end of the conical shell 10 is a small end, the lower end of the conical shell 10 is installed with a lower tube 11, the lower end of the lower tube 11 is provided with a lower cover 13, the lower cover 13 is connected to a suction tube 14, and a stop ring 12 is provided in the lower tube 11.

[0021] An end cover 2 is provided at the upper end of the upper tube body 1 .

[0022] A movable rod 3 is passed through the end cover 2 . A suction cup 31 is provided at the inner end of the movable rod 3 . A plurality of rubber rings are provided on the outer periphery of the suction cup 31 . An end cap 30 is provided at the outer end of the movable rod 3 .

[0023] An inner tube 40 is connected to the lower tube body 15 by a thread, and a limit ring 4 is provided at the upper end of the inner tube 40. An inner cover 41 is connected to the upper end of the inner tube 40 by a thread, and a placement groove 42 is provided on the inner side of the inner cover 41. Cotton cloth is provided in the placement groove 42, and a plurality of holes are provided on the inner cover 41. An inner ring 44 is provided at the lower end of the inner tube 40, and a stop ring 12 is located at the lower side of the inner ring 44. A lower extension ring 45 is provided at the lower end of the inner ring 44. A movable tube 46 is passed through the inner ring 44, and a top ring 47 is provided at the lower end of the movable tube 46. The lower end of the top ring 47 acts on the lower cover 13. A plurality of entry holes 49 are provided at the upper end of the movable tube 46, and a limit cover 50 is provided at the upper end of the movable tube 46. A spring 48 is sleeved on the lower end of the movable tube 46, and the spring 48 is located between the top ring 47 and the inner ring 44. The lower end of the inner tube 40 is provided with a conical inner shell 43 , which is located inside the conical shell 10 . The lower end of the conical inner shell 43 is a small end, and the inner ring 44 is provided at the lower end of the conical inner shell 43 .

[0024] In this embodiment, when performing powder sampling, the operator inserts the straw 14 into the intermediate powder.

[0025] The operator then pulls the movable rod 3 outward through the end cap 30. When the movable rod 3 moves, the powder is sucked through the suction cup 31. During the suction, the powder enters the movable tube 46 from the suction tube 14 and then enters the inner tube 40 through the entry hole 49. During the suction process, the cotton cloth prevents the powder from entering the upper tube body 1.

[0026] After the suction is completed, the sampled powder is transferred to the detection site, and then the upper tube body 1 is removed from the lower tube body 15, and then a closing cover is screwed on the inner cover 41, and then the inner tube 40 is inverted, and then the inner tube 40 is removed from the lower tube body 15. During the disassembly process, the movable tube 46 will move outward under the action of the spring 48, and finally the inlet hole 49 is moved out of the inner tube 40, and then the operator opens the inner cover 41 and performs powder sampling and testing. After the test, the inner cover 41 is re-covered on the inner tube 40 to keep a sample of the remaining powder.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A sampling tube for detection, characterized in that: The device comprises an upper tube body (1), the lower end of the upper tube body (1) is connected to a lower tube body (15) via a thread, the lower end of the lower tube body (15) is formed with a conical shell (10), the lower end of the conical shell (10) is provided with a lower tube (11), the lower end of the lower tube (11) is provided with a lower cover (13), and the lower cover (13) is connected to a straw (14); An end cover (2) is provided at the upper end of the upper tube body (1); A movable rod (3) is provided on the end cover (2), and a suction cup (31) is provided on the inner end of the movable rod (3); The lower tube body (15) is connected to an inner tube (40) by a thread, and the upper end of the inner tube (40) is connected to an inner cover (41) by a thread. A placement groove (42) is provided on the inner side of the inner cover (41), and cotton cloth is provided in the placement groove (42). A plurality of holes are provided on the inner cover (41), and an inner ring (44) is provided at the lower end of the inner tube (40). A movable tube (46) is passed through the inner ring (44), and a top ring (47) is provided at the lower end of the movable tube (46). The lower end of the top ring (47) acts on the lower cover (13). A plurality of entry holes (49) are provided at the upper end of the movable tube (46), and a limit cover (50) is provided at the upper end of the movable tube (46). A spring (48) is provided at the lower end of the movable tube (46), and the spring (48) is located between the top ring (47) and the inner ring (44).

2. The sampling tube for detection according to claim 1, characterized in that: A stop ring (12) is provided in the lower tube (11), and the stop ring (12) is located on the lower side of the inner ring (44).

3. The sampling tube for detection according to claim 1, characterized in that: An end cap (30) is provided at the outer end of the movable rod (3).

4. The sampling tube for detection according to claim 1, characterized in that: A plurality of rubber rings are provided on the outer periphery of the suction cup (31).

5. The sampling tube for detection according to claim 1, characterized in that: The lower end of the conical shell (10) is the small end.

6. The sampling tube for detection according to claim 1, characterized in that: A limiting ring (4) is provided at the upper end of the inner tube (40).

7. The detection sampling tube according to claim 1, characterized in that: A lower extending ring (45) is provided at the lower end of the inner ring (44).

8. The sampling tube for detection according to claim 1, characterized in that: The lower end of the inner tube (40) is provided with a conical inner shell (43), the conical inner shell (43) is located in the conical shell (10), the lower end of the conical inner shell (43) is a small end, and the inner ring (44) is provided at the lower end of the conical inner shell (43).

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