Anti-pollution vacuum sampler

Abstract

The utility model discloses an anti-pollution vacuum sampler which comprises a fixed seat, a vacuumizing structure is fixedly mounted on the fixed seat, a screw cap is fixedly adhered to the bottom end of the fixed seat, a sampling bottle is mounted on the screw cap in a threaded manner, a through groove is formed in the top wall of the fixed seat, and the through groove penetrates through the screw cap and is communicated with an inner cavity of the screw cap; a sampling pipe is arranged in the through groove, a cover plate is fixedly adhered to the sampling pipe, a rotating seat is arranged on one side of the through groove, the rotating seat is fixedly adhered to a fixed seat, a pressing plate is rotatably mounted on the rotating seat, the pressing plate is arranged on the cover plate, and a locking mechanism for locking the pressing plate is arranged on the fixed seat. The locking mechanism comprises two supporting columns, the two supporting columns are fixedly bonded to the side wall of the fixing base, and the two supporting columns are slidably connected with a moving block. According to the utility model, the convenience of replacing the sampling tube can be greatly improved, and medicine pollution caused when different medicines are sampled is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of drug sampling, in particular to an anti-pollution vacuum sampler. Background Technique

[0002] In the production and processing of drugs, the inspection of drugs is very important. If the drugs are unqualified, it will not only cause great economic losses, but also cause great harm to the human body, environment, etc. To effectively improve the drug inspection efficiency, correct sampling is very necessary. During the inspection process, by using the correct sampling method, the inspection efficiency and accuracy can be effectively improved, thereby improving the qualification rate of drug production and processing. The sampling of drugs usually requires the use of a vacuum sampler.

[0003] After retrieval, it is found that the authorized patent with the publication number of CN216791757U discloses an anti-pollution liquid sampler, which includes a multifunctional cover, an installation cylinder, a sealing rubber ring, a sampling tube and an installation port. The inner side of the installation port is threadedly connected with a hollow cylinder, and the inner side of the hollow cylinder is movably connected with a piston. An installation hole is opened at the center of the piston, and a piston rod is arranged inside the installation hole. The main advantage of the utility model is to provide an anti-pollution liquid sampler. The device provides an anti-pollution sampling structure. Through the setting of the anti-pollution sampling structure, when the staff needs to take multiple samples, the sampling tube can be pulled out and replaced, avoiding cleaning all the sampling structures, reducing the operation steps of the staff during sampling, and also improving the work efficiency of the staff. The staff can take multiple samples by replacing the sampling tube, which not only reduces the workload of the staff during sampling, but also improves the accuracy of the detection results.

[0004] However, when the above technical solution is actually used, there are still the following deficiencies: Generally, the sampling tube is usually a rubber hose, so that when replacing the sampling tube, due to the softness of the sampling tube, it is very inconvenient to insert it into the sealing rubber ring, and during the long-term back-and-forth plugging and unplugging of the sealing rubber ring, its elasticity will become poor, resulting in poor sealing performance after the sampling tube is inserted, affecting the sampling effect. In view of this, we propose an anti-pollution vacuum sampler to solve the above-mentioned problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an anti-pollution vacuum sampler to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An anti-pollution vacuum sampler, including:

[0007] Fixing base, a vacuum extraction structure is fixedly installed on the fixing base, a rotary cap is fixedly adhered to the bottom end of the fixing base, a sampling bottle is threadedly installed on the rotary cap, a through groove is opened on the top wall of the fixing base, the through groove penetrates through the rotary cap and communicates with the inner cavity of the rotary cap, a sampling tube is arranged in the through groove, a cover plate is fixedly adhered to the sampling tube, a rotating seat is arranged on one side of the through groove, the rotating seat is fixedly adhered to the fixing base, a pressing plate is rotatably installed on the rotating seat, the pressing plate is arranged on the cover plate, and a locking mechanism for locking the pressing plate is arranged on the fixing base.

[0008] Preferably, the locking mechanism includes two support columns, both of the two support columns are fixedly adhered to the side wall of the fixing base, a moving block is slidably connected to the two support columns, a tension spring is sleeved on each of the two support columns, two ends of the tension spring are respectively fixedly connected with the side wall of the fixing base and the moving block, and two locking blocks are fixedly adhered to the moving block.

[0009] Preferably, a rubber ring is fixedly adhered to the top wall of the fixing base, and the rubber ring is arranged concentrically with the through groove.

[0010] Preferably, an avoidance groove is opened on the pressing plate.

[0011] Preferably, a base is fixedly adhered to the outer wall of the fixing base, a sliding rod is slidably connected to the base, one end of the sliding rod is fixedly adhered to a connecting rod, the connecting rod is fixedly adhered to the bottom wall of the moving block, and a push plate is fixedly adhered to the end of the sliding rod away from the connecting rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] During the use of the present utility model, when it is necessary to replace the sampling tube, the moving block can be pushed outwards through the push plate to drive the two locking blocks to disengage from the pressing plate, then the pressing plate is turned upwards, the used sampling tube is taken off, and one end of a new sampling tube is inserted into the through groove and its cover plate is covered on the rubber ring, then the pressing plate is turned over so that the pressing plate presses on the cover plate, the push plate is released, and the moving block drives the two locking blocks to squeeze on the pressing plate under the pulling action of the two stretched tension springs to lock the pressing plate. The operation is simple and convenient, greatly improving the convenience of replacing the sampling tube and preventing drug contamination when sampling different drugs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of an anti-pollution vacuum sampler proposed by the present utility model;

[0015] Figure 2 is a three-dimensional structural diagram of the fixing base in an anti-pollution vacuum sampler proposed by the present utility model;

[0016] Figure 3 The sectional front view structural diagram of the fixed seat in a pollution-proof vacuum sampler proposed by the present utility model.

[0017] In the figure: 1. Fixed seat; 2. Vacuum pumping structure; 3. Screw cap; 4. Sampling bottle; 5. Sampling tube; 6. Rotating seat; 7. Pressure plate; 8. Cover plate; 9. Support column; 10. Moving block; 11. Tensile spring; 12. Locking block; 13. Through groove; 14. Rubber ring; 15. Avoidance groove; 16. Base; 17. Slide bar; 18. Connecting rod; 19. Push plate. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-3 , the present utility model provides a technical solution: a pollution-proof vacuum sampler, including:

[0020] A fixed seat 1, on which a vacuum pumping structure 2 is fixedly installed, a screw cap 3 is fixedly adhered to the bottom end of the fixed seat 1, a sampling bottle 4 is threadedly installed on the screw cap 3, a through groove 13 is opened on the top wall of the fixed seat 1, the through groove 13 penetrates through the screw cap 3 and communicates with the inner cavity of the screw cap 3, a sampling tube 5 is arranged in the through groove 13, a cover plate 8 is fixedly adhered to the sampling tube 5, a rotating seat 6 is arranged on one side of the through groove 13, the rotating seat 6 is fixedly adhered to the fixed seat 1, a pressure plate 7 is rotatably installed on the rotating seat 6, the pressure plate 7 is arranged on the cover plate 8, and a locking mechanism for locking the pressure plate 7 is arranged on the fixed seat 1.

[0021] The locking mechanism includes two support columns 9, both of the two support columns 9 are fixedly adhered to the side wall of the fixed seat 1, a moving block 10 is slidably connected to the two support columns 9, tensile springs 11 are sleeved on the two support columns 9, two ends of the tensile springs 11 are respectively fixedly connected with the side wall of the fixed seat 1 and the moving block 10, the pulling force of the two tensile springs 11 acts on the moving block 10, which can drive the moving block 10 to move towards the fixed seat 1, thereby driving the two locking blocks 12 to squeeze the pressure plate 7 and locking the pressure plate 7 on the cover plate 8.

[0022] A rubber ring 14 is fixedly adhered to the top wall of the fixed seat 1, the rubber ring 14 is concentrically arranged with the through groove 13, and the rubber ring 14 can improve the sealing performance when the cover plate 8 is closed.

[0023] The pressing plate 7 is provided with an avoidance groove 15, and the avoidance groove 15 can avoid the sampling tube 5 when the pressing plate 7 is turned over.

[0024] A base 16 is fixedly adhered to the outer wall of the fixed seat 1. A sliding rod 17 is slidably connected to the base 16. One end of the sliding rod 17 is fixedly adhered with a connecting rod 18, and the connecting rod 18 is fixedly adhered to the bottom wall of the moving block 10. The end of the sliding rod 17 away from the connecting rod 18 is fixedly adhered with a push plate 19. Pushing the push plate 19 can drive the sliding rod 17 to slide on the base 16. When the sliding rod 17 slides, it can drive the moving block 10 to move away from the fixed seat 1 through the connecting rod 18, so as to drive the two locking blocks 12 to disengage from the pressing plate 7, facilitating the opening of the pressing plate 7 for replacing the material taking tube.

[0025] Working principle: During the use of this utility model, when it is necessary to replace the sampling tube 5, the moving block 10 can be pushed outwards through the push plate 19 to drive the two locking blocks 12 to disengage from the pressing plate 7. Then, the pressing plate 7 is turned upwards to remove the used sampling tube 5. Next, one end of the new sampling tube 5 is inserted into the through groove 13, and its cover plate 8 is covered on the rubber ring 14. Then, the pressing plate 7 is turned over so that the pressing plate 7 is pressed on the cover plate 8. The push plate 9 is released, so that the moving block 10 drives the two locking blocks 12 to press on the pressing plate 7 under the pulling action of the two stretched tension springs 11, and the pressing plate 7 is locked. The operation is simple and convenient, greatly improving the convenience of replacing the sampling tube 5 and preventing drug contamination when sampling different drugs.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A contamination-proof vacuum sampler, characterized in that: include: A fixed seat (1), a vacuum pumping structure (2) is fixedly mounted on the fixed seat (1), a screw cap (3) is fixedly bonded to the bottom end of the fixed seat (1), a sampling bottle (4) is threadedly mounted on the screw cap (3), a through groove (13) is provided on the top wall of the fixed seat (1), the through groove (13) passes through the screw cap (3) and is connected to the inner cavity of the screw cap (3), a sampling tube (5) is arranged in the through groove (13), a cover plate (8) is fixedly bonded to the sampling tube (5), a rotating seat (6) is arranged on one side of the through groove (13), the rotating seat (6) is fixedly bonded to the fixed seat (1), a pressing plate (7) is rotatably mounted on the rotating seat (6), the pressing plate (7) is arranged on the cover plate (8), and a locking mechanism for locking the pressing plate (7) is arranged on the fixed seat (1).

2. The anti-pollution vacuum sampler according to claim 1, characterized in that: The locking mechanism comprises two support columns (9), the two support columns (9) are fixedly bonded to the side wall of the fixed seat (1), the two support columns (9) are slidably connected to a moving block (10), the two support columns (9) are sleeved with a tension spring (11), the two ends of the tension spring (11) are respectively fixedly connected to the side wall of the fixed seat (1) and the moving block (10), and the moving block (10) is fixedly bonded with two locking blocks (12).

3. The anti-pollution vacuum sampler according to claim 1, characterized in that: A rubber ring (14) is fixedly bonded to the top wall of the fixing seat (1), and the rubber ring (14) is coaxially arranged with the through groove (13).

4. The anti-pollution vacuum sampler according to claim 1, characterized in that: The pressing plate (7) is provided with an avoidance groove (15).

5. The anti-pollution vacuum sampler according to claim 2, characterized in that: A base (16) is fixedly bonded to the outer wall of the fixed seat (1), a sliding rod (17) is slidably connected to the base (16), a connecting rod (18) is fixedly bonded to one end of the sliding rod (17), the connecting rod (18) is fixedly bonded to the bottom wall of the moving block (10), and a push plate (19) is fixedly bonded to one end of the sliding rod (17) away from the connecting rod (18).

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