Sampling device with push-pull function
By designing a sampling device with a push-pull function, the problems of uneven mixing and adhesion of cream samples were solved, achieving efficient and uniform stirring and sampling, and improving sample accuracy and ease of operation.
Patent Information
- Application Number
- CN202423211541.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing technologies, cream samples are prone to uneven mixing during stirring and sampling, and the samples tend to stick to the sampling equipment and bottle walls, increasing the risk of contamination and the difficulty of preparation.
A sampling device with push-pull function was designed, including a stirring rod and a booster. The piston scrapes the paste on the stirring rod to the bottom of the bottle, and the stirrer enhances the stirring force to avoid sample adhesion and achieve uniform mixing.
It improves the mixing uniformity and stirring efficiency of cream samples, reduces sample residue and contamination risks, and ensures sampling accuracy.
Smart Images
Figure CN223742053U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of cream sample taking for bacteriostatic efficacy inspection, in particular to a sampling device with push-pull function. BACKGROUND
[0002] The bacteriostatic efficacy inspection of cream samples is an important link in drug quality control, aiming to evaluate the inhibitory ability of cream products on specific pathogenic microorganisms. This inspection is usually used for the quality control of external antibacterial ointments, antifungal ointments and other products, to ensure that they can effectively inhibit or kill target microorganisms during use, and to protect the safety of patients.
[0003] In the method for bacteriostatic efficacy inspection in the fourth general rules of Chinese Pharmacopoeia 2020 edition, the cream sample in the stirring bottle needs to be mixed first. At present, the top of a sampling tool such as an iron spoon or a coating rod is used for mixing, and then the sample attached to the sampling tool is put into the sampling bottle to complete the sampling operation. Due to the high viscosity of the cream sample, firstly, a large amount of sample is easily accumulated on the sampling tool during stirring, causing uneven mixing of the sample. Secondly, the sample on the sampling tool needs to be rubbed with the sampling bottle to complete the sampling, which easily causes the sample to stick to various parts of the sampling bottle, making it difficult for the test solution to contact or mix evenly with the sample, increasing the difficulty of preparing the test solution from the sample, and increasing the risk of contamination due to the sample sticking to the bottle mouth. SUMMARY
[0004] To overcome the shortcomings of the prior art, the utility model provides a sampling device with push-pull function. During stirring, the piston at the lower part of the booster can scrape the cream on the stirring rod to the bottom of the bottle, and repeated stirring can prevent the sample from sticking to various parts of the sampling bottle when it is put into the sampling bottle.
[0005] The utility model provides a sampling device with push-pull function, which comprises a stirring rod, a booster is sleeved on the outer periphery of the stirring rod, a piston is fixed to the bottom of the booster and adheres to the outer periphery of the stirring rod, and a stirrer is fixed to the bottom end of the stirring rod. During stirring, the piston at the lower part of the booster can scrape the cream on the stirring rod to the bottom of the bottle, and repeated stirring can make the cream sample more uniform. The stirrer enhances the stirring force and further improves the stirring efficiency.
[0006] As a further technical solution, the booster comprises a push rod sleeved on the outside of the stirring rod, and a boosting part is fixed to the top of the push rod. By turning the boosting part, the push rod drives the piston to move up and down, and the cream on the stirring rod can be scraped off.
[0007] As a further technical scheme, the push rod and the booster are both annular structures, and vertical sections of the two are T-shaped.
[0008] As a further technical scheme, a limiting part is fixed to the top of the stirring rod, and a cross-sectional area of the limiting part is larger than that of the stirring rod.
[0009] As a further technical scheme, the limiting part is circular, and a diameter of the limiting part is larger than an inner ring diameter of the booster and smaller than an outer ring diameter of the booster.
[0010] As a further technical scheme, the stirrer is a fan blade structure.
[0011] Compared with the prior art, the device has the advantages that:
[0012] 1. The device has simple and reasonable structure, is easy to manufacture and use, and can improve sample uniformity and convenience during sampling by combining a push-pull structure.
[0013] 2. During stirring, the piston at the lower part of the booster scrapes the cream on the stirring rod to the bottom of the bottle, and then stirring is performed, so that the cream sample can be stirred more uniformly after multiple operations, cream is prevented from adhering to the stirring rod, the cream sample is prevented from being stirred unevenly, and the precision of the sample taken by the stirring rod is improved.
[0014] 3. When the booster is pushed to the top end of the stirring rod, the booster can be limited on the stirring rod, so that the booster is prevented from falling off during use and work efficiency is improved.
[0015] 4. The stirrer is arranged at the bottom end of the stirring rod, so that stirring force is improved and stirring efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] To make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings used in the embodiments or the prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.
[0017] Figure 1 A structure schematic view of the sampling device with push-pull function provided by the utility model.
[0018] Figure 2 A schematic view of the booster pushing to the bottom end of the stirring rod in the sampling device with push-pull function provided by the utility model.
[0019] Figure 3 A top view of the sampling device with push-pull function provided by the utility model.
[0020] Figure 4 A structure schematic view of the stirrer in the sampling device with push-pull function provided by the utility model.
[0021] In the drawing: 1, stirring rod; 2, booster; 201, push rod; 202, boosting part; 3, piston; 4, limiting part; 5, stirrer. DETAILED DESCRIPTION
[0022] The terms "comprising" and "having" and any variations thereof in the specification and claims and the above drawings are intended to cover not exclusive inclusions, for example, a process, method, system, product, or apparatus that includes a series of steps or units, not necessarily limited to which steps or units are clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products, or apparatuses.
[0023] To make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme in the utility model embodiments will be described clearly and completely below by combining with the drawings in the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model. In addition, the technical features in each embodiment or single embodiment provided by the utility model can be combined with each other to form new technical scheme, and this combination is not restricted by the order of steps and / or structure composition mode, but must be based on the implementation by the ordinary skilled in the art, when the combination of technical scheme appears contradictory or cannot be implemented, it should be considered that the combination of technical scheme does not exist, also not in the protection scope required by the utility model.
[0024] Please refer to Figures 1-4 The utility model embodiment provides a kind of sampling device with push-pull function, including stirring rod 1, the outer periphery of stirring rod 1 is equipped with booster 2, the bottom of booster 2 is fixed with the piston 3 that is attached to the outer periphery of stirring rod 1.
[0025] The stirring rod 1 is inserted into the sampling bottle to sufficiently stir the cream sample in the sampling bottle, and the cream on the rod body of the stirring rod 1 can be scraped to the bottom of the bottle by the piston 3 at the lower part of the booster 2, and then stirred again. After multiple operations, the cream sample can be stirred more uniformly, and the cream is prevented from adhering to the rod body of the stirring rod 1, so that the stirring rod 1 cannot affect the accuracy of the sample removed.
[0026] In this embodiment, as shown in Figures 1-2 The booster 2 includes a push rod 201 sleeved outside the stirring rod 1, and a boosting part 202 is fixed to the top of the push rod 201. Both the push rod 201 and the boosting part 202 are annular structures, and the vertical cross section of the two is T-shaped.
[0027] At the same time, the cream sample in the stirring bottle is usually about 20g, and the amount is small. When the booster 2 is at the upper end position of the stirring rod 1, the stirring rod 1 is placed in the stirring bottle for stirring, and the cream sample will adhere to the rod body outside the stirring rod 1 and below the booster 2
[0028] By pushing the boosting part 202, the push rod 201 drives the piston 3 to move downward, so that the cream on the rod body of the stirring rod 1 can be scraped off. The boosting part 202 and the push rod 201 form a T-shaped structure, which is more convenient for the staff to hold and operate.
[0029] In order to prevent the booster 2 from being detached from the top of the stirring rod 1, a limiting part 4 is fixed to the top of the stirring rod 1, and the cross-sectional area of the limiting part 4 is larger than that of the stirring rod 1.
[0030] In the initial state, as shown in Figure 1 When the booster 2 is pushed to the top end of the stirring rod 1, it can be limited by the limiting part 4 on the stirring rod 1, effectively reducing the detachment of the booster 2 during use and affecting the work efficiency.
[0031] In addition, the limiting part 4 is a circular structure, and the diameter of the limiting part 4 is greater than the inner ring diameter of the boosting part 202 and less than the outer ring diameter of the boosting part 202.
[0032] The limiting part 4 and the boosting part 202 form a stepped structure, which not only prevents the boosting part 202 from being detached from the top end of the stirring rod 1, but also facilitates the operation of the staff. When operating, it is easier to control the position of the booster 2.
[0033] In this embodiment, as shown in Figures 1-2 The bottom end of the stirring rod 1 is fixed with a stirrer 5, and the stirrer 5 is a fan-shaped structure as shown in Figures 3-4 The stirring force can be enhanced by the stirrer 5, and the stirring efficiency can be further improved.
[0034] Push the booster 2 from top to bottom, so that the piston 3 scrapes the cream on the stick body of the stirring stick 1, until the booster 2 is pushed to the state as shown in Figure 2 Most of the cream sample will enter the bottom of the sampling bottle from the blade gap of the stirrer 5, so that the sample will not adhere to the inner wall of the sampling bottle during sampling, affecting the test, and the fan structure can effectively reduce the sample residue on the stirrer 5.
[0035] In summary, the utility model fully stirs the cream sample in the sampling sample by extending the stirring stick 1 into the sampling bottle, so that the cream sample is uniformly mixed, the stirring force is enhanced by the stirrer 5, and the stirring efficiency is improved, and during the stirring process, the piston 3 at the lower part of the booster 2 can scrape the cream on the stick body of the stirring stick 1 to the bottom of the bottle, and then the stirring is repeated, so that the cream sample can be stirred more uniformly after multiple operations, the stirring efficiency is further improved, and after uniform stirring, the position of the booster 2 is as shown in Figure 1 The cream attached to the stick body of the stirring stick 1 is the sample taken out;
[0036] Place the sampling device in the sampling bottle, so that the stirrer 5 is close to the bottom of the sampling bottle, push the booster 2, and the piston 3 pushes the cream attached to the stirring stick 1 to the bottom of the bottle, and then the booster 2 is pushed to the state as shown in Figure 2 The cream sample can be pushed from the blade gap of the stirrer 5 to the bottom of the sampling bottle, and the sampling operation is completed.
[0037] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the utility model examples.
Claims
1. A sampling device with push-pull function, characterized in that, The utility model relates to a stirring rod, which comprises a stirring rod (1), an outer periphery of the stirring rod (1) is sleeved with a booster (2), a bottom of the booster (2) is fixed with a piston (3) which is attached to the outer periphery of the stirring rod (1), and a bottom end of the stirring rod (1) is fixed with a stirrer (5).
2. The sampling device with push-pull function according to claim 1, characterized in that, The booster (2) comprises a push rod (201) which is sleeved outside the stirring rod (1), and a boosting part (202) is fixed to a top of the push rod (201).
3. The sampling device of claim 2, wherein, The push rod (201) and the boosting part (202) are both annular structures, and vertical sections of the push rod (201) and the boosting part (202) are T-shaped.
4. The sampling device of claim 3, wherein, A top of the stirring rod (1) is fixed with a limiting part (4), and a cross-sectional area of the limiting part (4) is greater than that of the stirring rod (1).
5. The sampling device of claim 4, wherein, The limiting part (4) is a circular structure, and a diameter of the limiting part (4) is greater than an inner ring diameter of the boosting part (202) and smaller than an outer ring diameter of the boosting part (202).
6. The sampling device of claim 1, wherein, The stirrer (5) is a fan blade type structure.