Sampling device

Abstract

The utility model discloses a sampling device, which relates to the technical field of pharmaceutical detection and comprises a central shaft, a sampling tube is slidably connected in a sampling groove, a pressing tube is slidably connected to the top of a storage tube, a sampling head is fixedly connected to the bottom of a rotating shaft, and an auger is fixedly connected to the outer wall of the rotating shaft in the sampling groove. The medicine sampling device has the beneficial effects that after the sampling tube enters the medicine, the turncap is pressed to drive the auger to rotate through the rotating shaft, so that medicine powder is sucked in through a gap between the sampling head and the sampling tube when the turncap is pressed downwards, and the medicine sampling effect is further achieved; after sampling is completed, the turncap is loosened, so that the first piston slides upwards under the action of the first spring, the auger is rapidly brought back into the sampling pipe, and medicine sampling is completed.

Description

Technical Field

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

[0002] Pharmaceutical testing refers to the inspection of some drugs. Generally, pharmaceutical companies and drug regulatory authorities set up their own laboratories to test newly developed drugs according to national standards. Pharmaceutical testing generally uses sampling devices to extract appropriate amounts of drugs for laboratory testing. When sampling, it is often necessary to sample powder to determine whether the active drug and excipients are evenly mixed.

[0003] Chinese patent publication number CN 218098426 U provides a single-point powder sampling device suitable for the drug production process. It is easy to install and clean, can improve the efficiency of sampling and avoid secondary transfer of powder. Unlike most current powder samplers, the sampling groove is on the side. The powder taken out generally needs to be transferred to weighing paper and then transferred to the sample bottle. The whole process is friction-free, avoiding the generation of abrasive debris, no secondary pollution, and improving the reliability of sampling.

[0004] However, the above device has the following problems: 1. The device presses down the sampling head so that the powder enters the gap created by the pressing of the sampling head, and then the sampling head is reset to bring the powder back into the device. However, when the sampling head moves up, the excess powder will be stuck between the sampling head and the bottom of the sampler. When the device is taken out, the powder will fall into the nearby environment, which is not conducive to the pollution-free environment of drug testing; 2. The single sampling amount of the device is very small, and the amount of drug powder sampling cannot be controlled according to the detection requirements, which is not convenient for different drug tests according to requirements. Utility Model Content

[0005] The purpose of the utility model is to provide a sampling device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sampling device, comprising a central axis, an outer wall of the central axis is fixedly connected to a fixing ring, a side wall of the fixing ring is fixedly connected to a fixing sleeve, a middle part of the fixing sleeve is fixedly connected to a storage tube, a sampling groove is provided at the bottom of the storage tube, a sampling tube is slidably connected inside the sampling groove, a pressing tube is slidably connected to the top of the storage tube, the bottom of the pressing tube is fixedly connected to the top of the sampling groove, a rotating shaft is movably connected inside the pressing tube, the outer wall of the rotating shaft is movably connected to the top of the sampling groove, a sampling head is fixedly connected to the bottom of the rotating shaft, and a screw is fixedly connected to the outer wall of the rotating shaft inside the sampling groove.

[0007] Preferably, a pressing cap is fixedly connected to the top of the pressing tube, the rotating shaft is movably connected to the middle of the pressing cap, and a rotating cap is fixedly connected to the top of the rotating shaft.

[0008] Preferably, a first sliding groove is provided inside the pressing tube, a first piston is fixedly connected to the outer wall of the rotating shaft located inside the first sliding groove, and a first spring is provided between the bottom of the first piston and the inner bottom of the first sliding groove.

[0009] Preferably: a first card slot and a second card slot are provided on one side of the pressing tube, a second sliding slot is provided inside the storage tube on the outside of the second card slot, a second piston is slidably connected inside the second sliding slot, a card block is fixedly connected to one side of the second piston close to the second card slot, and an outer wall of the card block is slidably connected to the second card slot.

[0010] Preferably: a pull rod is slidably connected to the side of the storage tube at one side of the second sliding groove, one side of the pull rod is fixedly connected to the middle of the second piston, and a second spring is provided between the side of the second piston close to the pull rod and the inner wall of the second sliding groove.

[0011] Preferably, the top of the storage tube is provided with limiting grooves on both sides of the pressing tube, and limiting blocks are fixedly connected to both sides of the pressing tube, and the limiting blocks are slidably connected to the inner walls of the limiting grooves.

[0012] Preferably, a handle is fixedly connected to the top of the central axis.

[0013] Preferably: a base is provided directly below the central axis, a placement joint is fixedly connected to the top of the base, a docking groove is provided at the bottom of the central axis, and an inner wall of the docking groove is slidably connected to the placement joint.

[0014] Compared with the prior art, the utility model has the following beneficial effects: through the arrangement of the sampling tube and the auger, after the sampling tube enters the interior of the medicine, the screw cap is pressed, so that the screw cap can drive the auger to rotate through the rotating shaft, so that the medicine powder is sucked into the gap between the sampling head and the sampling tube when the screw cap is pressed down, thereby achieving the effect of medicine sampling; through the arrangement of the first piston and the first spring, when the auger sampling is completed, the screw cap is loosened, so that the first piston can slide upward under the action of the first spring, thereby pushing the rotating shaft to slide upward inside the pressing tube, and then quickly bringing the auger back to the interior of the sampling tube, and then resetting the pressing tube, The drug sampling is thereby completed; through the arrangement of the first card slot, the second card slot and the card block, in the normal state of the device, the card block is stuck in the interior of the second card slot, so that the pressing tube is fixed, preventing the bottom of the sampling head from contacting with the desktop and causing contamination; when sampling is performed, the second spring in the squeezed state will push the second piston and the card block to slide in the direction of the first card slot, thereby pushing the card block into the interior of the first card slot, so that the pressing tube is fixed in a position convenient for sampling the drug; after the sampling is completed, the pressing cap is directly pulled upwards, and the card block will bounce into the second card slot again under the action of the second spring, thereby completing the resetting and fixing of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0016] Figure 2 This is a bottom view of the structure of the utility model;

[0017] Figure 3 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 4 This is an enlarged view of the structure A of the utility model;

[0019] Figure 5 It is an enlarged view of structure B of the utility model.

[0020] In the figure: 1. central axis; 2. fixing ring; 3. fixing sleeve; 4. storage tube; 5. sampling slot; 6. sampling tube; 7. pressing tube; 8. rotating shaft; 9. sampling head; 10. auger; 11. pressing cap; 12. screw cap; 13. first sliding slot; 14. first piston; 15. first spring; 16. first clamping slot; 17. second clamping slot; 18. second sliding slot; 19. second piston; 20. clamping block; 21. pull rod; 22. second spring; 23. limiting slot; 24. limiting block; 25. handle; 26. base; 27. placement joint; 28. docking slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: a sampling device, including a central axis 1, a fixing ring 2 is fixedly connected to the outer wall of the central axis 1, a fixing sleeve 3 is fixedly connected to the side wall of the fixing ring 2, a storage tube 4 is fixedly connected to the middle part of the fixing sleeve 3, a sampling groove 5 is provided at the bottom of the storage tube 4, a sampling tube 6 is slidably connected inside the sampling groove 5, a pressing tube 7 is slidably connected to the top of the storage tube 4, the bottom of the pressing tube 7 is fixedly connected to the top of the sampling groove 5, a rotating shaft 8 is movably connected inside the pressing tube 7, the outer wall of the rotating shaft 8 is movably connected to the top of the sampling groove 5, a sampling head 9 is fixedly connected to the bottom of the rotating shaft 8, and a screw 10 is fixedly connected to the outer wall of the rotating shaft 8 inside the sampling groove 5.

[0023] In an optional embodiment: a pressing cap 11 is fixedly connected to the top of the pressing tube 7, the rotating shaft 8 is movably connected to the middle part of the pressing cap 11, the top of the rotating shaft 8 is fixedly connected to the rotary cap 12, a first sliding groove 13 is provided inside the pressing tube 7, a first piston 14 is fixedly connected to the outer wall of the rotating shaft 8 located inside the first sliding groove 13, and a first spring 15 is provided between the bottom of the first piston 14 and the inner bottom of the first sliding groove 13.

[0024] It should be noted that when it is necessary to sample the powdered medicine, the pressing cap 11 is pressed downward so that the pressing cap 11 pushes the pressing tube 7 to slide downward, thereby pushing the sampling tube 6 to slide downward from the inside of the sampling groove 5, and then the sampling tube 6 gradually slides into the medicine. The bottom tip of the sampling head 9 helps the sampling tube 6 to enter the medicine. When the sampling tube 6 enters the powdered medicine, the screw cap 12 is pressed so that the screw cap 12 pushes the rotating shaft 8 to slide downward, thereby causing the auger 10 to slide downward out of the sampling tube 6. Keep pressing and continue to rotate the screw cap 12, so that the screw cap 12 can drive the auger 10 to rotate through the rotating shaft 8, thereby transferring the medicine powder through the sampling head 9 and the sampling tube 6 when the screw cap 12 is pressed down. 6, and continuously rotating the screw cap 12 can make the auger 10 move the medicine upward while sucking the powder medicine, and when the rotating shaft 8 slides downward, the first piston 14 fixedly connected to the outer wall of the rotating shaft 8 will squeeze the first spring 15. When the auger 10 completes sampling, loosening the screw cap 12 can make the first piston 14 slide upward under the action of the first spring 15, thereby pushing the rotating shaft 8 to slide upward inside the pressing tube 7, and then quickly bringing the auger 10 back to the inside of the sampling tube 6, and then resetting the pressing tube 7 to complete the medicine sampling. The bevel at the top of the sampling head 9 allows the excess powder at the bottom of the auger 10 to slide out from the beveled surface, thereby preventing the auger 10 from getting stuck when resetting.

[0025] In an optional embodiment: a first card slot 16 and a second card slot 17 are provided on one side of the pressing tube 7, a second sliding slot 18 is provided inside the storage tube 4 on the outside of the second card slot 17, a second piston 19 is slidably connected inside the second sliding slot 18, a block 20 is fixedly connected to the side of the second piston 19 close to the second card slot 17, an outer wall of the block 20 is slidably connected to the second card slot 17, a pull rod 21 is slidably connected to the side of the storage tube 4 on one side of the second sliding slot 18, one side of the pull rod 21 is fixedly connected to the middle part of the second piston 19, and a second spring 22 is provided between the side of the second piston 19 close to the pull rod 21 and the inner wall of the second sliding slot 18.

[0026] It should be noted that, in the normal state of the device, the block 20 is stuck inside the second slot 17, so that the pressing tube 7 is fixed, preventing the bottom of the sampling head 9 from contacting with the desktop and causing contamination, further causing contamination of the medicine during sampling, and causing unnecessary economic losses. When sampling, the pull rod 21 is pulled, so that the pull rod 21 drives the second piston 19 to slide in the direction of the pull rod 21, so that the second piston 19 brings the block 20 out of the second slot 17 and the second piston 19 squeezes the second spring 22. When the block 20 completely slides out of the second slot 17, the pressing cap 11 can be pressed downward, thereby pushing the pressing tube 7 downward, and then pushing the sampling tube 6 into the medicine. When the pressing tube 7 descends to the first slot 16 and aligns with the first slot 16, the pressing cap 11 can be pressed downward. When the block 20 is stuck, the second spring 22 in the squeezed state will push the second piston 19 and the block 20 to slide in the direction of the first slot 16, thereby pushing the block 20 into the inside of the first slot 16, so that the pressing tube 7 is fixed in a position convenient for sampling the medicine. After the sampling is completed, the pressing cap 11 is directly pulled upward. The shape of the block 20 cooperates with the block 20, so that the oblique angle of the block 20 can be squeezed when the first slot 16 moves upward, thereby squeezing the block 20 into the second sliding slot 18 and squeezing the second spring 22. When the pressing tube 7 is pulled up to the second slot 17 and aligned with the block 20, the block 20 will bounce into the second slot 17 again under the action of the second spring 22, thereby completing the resetting of the device and fixing it.

[0027] In an optional embodiment: the top of the storage tube 4 is provided with limiting grooves 23 on both sides of the pressing tube 7, and the two sides of the pressing tube 7 are fixedly connected with limiting blocks 24, and the limiting blocks 24 are slidably connected to the inner wall of the limiting groove 23.

[0028] It should be noted that the setting of the limiting groove 23 and the limiting block 24 allows the pressing tube 7 to only slide up and down and will not be affected by friction when the rotating shaft 8 rotates, causing the pressing tube 7 to rotate at the same time as the rotating shaft 8.

[0029] In an optional embodiment: a handle 25 is fixedly connected to the top of the central axis 1, a base 26 is provided directly below the central axis 1, a placement joint 27 is fixedly connected to the top of the base 26, a docking groove 28 is provided at the bottom of the central axis 1, and the inner wall of the docking groove 28 is slidably connected to the placement joint 27.

[0030] It should be noted that when the device is idle or sampling is completed, the docking groove 28 at the bottom of the central axis 1 can be aligned with the placement joint 27 and then lowered, so that the placement joint 27 is pushed into the docking groove 28 and locked. At this time, at the height of the placement joint 27, the sampling head 9 is still a certain distance away from the desktop, avoiding contact between the sampling head 9 and the desktop, thereby preventing contamination.

[0031] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0033] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0034] 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, comprising a central axis (1), characterized in that: The outer wall of the central axis (1) is fixedly connected to a fixing ring (2), the side wall of the fixing ring (2) is fixedly connected to a fixing sleeve (3), the middle part of the fixing sleeve (3) is fixedly connected to a storage tube (4), the bottom of the storage tube (4) is provided with a sampling groove (5), the interior of the sampling groove (5) is slidably connected to a sampling tube (6), the top of the storage tube (4) is slidably connected to a pressing tube (7), the bottom of the pressing tube (7) is fixedly connected to the top of the sampling groove (5), the interior of the pressing tube (7) is movably connected to a rotating shaft (8), the outer wall of the rotating shaft (8) is movably connected to the top of the sampling groove (5), the bottom of the rotating shaft (8) is fixedly connected to a sampling head (9), and the rotating shaft (8) is fixedly connected to the outer wall inside the sampling groove (5) with a screw (10).

2. A sampling device according to claim 1, characterized in that: The top of the pressing tube (7) is fixedly connected to a pressing cap (11), the rotating shaft (8) is movably connected to the middle of the pressing cap (11), and the top of the rotating shaft (8) is fixedly connected to a rotating cap (12).

3. A sampling device according to claim 1, characterized in that: A first sliding groove (13) is provided inside the pressing tube (7); a first piston (14) is fixedly connected to the outer wall of the rotating shaft (8) located inside the first sliding groove (13); and a first spring (15) is provided between the bottom of the first piston (14) and the inner bottom of the first sliding groove (13).

4. A sampling device according to claim 1, characterized in that: A first clamping groove (16) and a second clamping groove (17) are provided on one side of the pressing tube (7); a second sliding groove (18) is provided inside the storage tube (4) on the outer side of the second clamping groove (17); a second piston (19) is slidably connected inside the second sliding groove (18); a clamping block (20) is fixedly connected to a side of the second piston (19) close to the second clamping groove (17); and an outer wall of the clamping block (20) is slidably connected to the second clamping groove (17).

5. A sampling device according to claim 1, characterized in that: The side surface of the storage tube (4) is slidably connected to a pull rod (21) on one side of the second sliding groove (18), one side of the pull rod (21) is fixedly connected to the middle of the second piston (19), and a second spring (22) is provided between the side of the second piston (19) close to the pull rod (21) and the inner wall of the second sliding groove (18).

6. A sampling device according to claim 1, characterized in that: The top of the storage tube (4) is provided with limiting grooves (23) on both sides of the pressing tube (7), and limiting blocks (24) are fixedly connected to both sides of the pressing tube (7), and the limiting blocks (24) are slidably connected to the inner walls of the limiting grooves (23).

7. A sampling device according to claim 1, characterized in that: A handle (25) is fixedly connected to the top of the central shaft (1).

8. A sampling device according to claim 1, characterized in that: A base (26) is provided directly below the central axis (1), a placement joint (27) is fixedly connected to the top of the base (26), a docking groove (28) is provided at the bottom of the central axis (1), and the inner wall of the docking groove (28) is slidably connected to the placement joint (27).

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