Cotton swab convenient for freeze-drying strain tube

Abstract

The utility model discloses a cotton swab facilitating freeze-drying of a strain tube. The cotton swab comprises a cotton swab assembly and a loading and unloading assembly connected with the cotton swab assembly. Wherein the cotton swab assembly comprises a hollow cylindrical structure, the bottom of the cylindrical structure is connected with a cotton swab head, the loading and unloading assembly comprises a rotating rod, clamping lattices extending in the circumferential direction of the cylindrical structure are arranged on the inner wall of the cylindrical structure, and clamping boxes corresponding to the clamping lattices are arranged at the bottom of the rotating rod; the sum of the area of the clamping box and the area of the clamping grid under the orthographic projection in the axial direction of the cylindrical structure is smaller than the inner circle area of the cylindrical structure under the orthographic projection in the axial direction of the cylindrical structure. The cotton swab is provided with a consistent cotton swab structure, the non-uniform condition in the cotton hand rubbing process is avoided, the loading and unloading assembly can be removed after being stuffed into the cotton swab assembly, the follow-up freeze-drying effect is not affected, freeze-drying uniformity is effectively maintained, the moisture sublimation path is unified, pollution is prevented, follow-up sealing operation is facilitated, and the original biological activity of strains is improved.

Description

Technical Field

[0001] This utility model belongs to the field of microbial freeze-drying preservation technology, and in particular relates to a cotton swab that facilitates the freeze-drying of bacterial culture tubes. Background Technology

[0002] Microbial culture preservation tubes are products used to preserve microbial cultures for extended periods of time in low-temperature environments.

[0003] Currently, before freeze-drying bacterial culture tubes, cotton often needs to be stuffed into them by hand. On the one hand, during the stuffing process, the appearance, thickness, and density of the cotton may be inconsistent, which may cause uneven drying and damage to the bacteria. On the other hand, there are also problems such as time-consuming and inefficient hand-rubbing of cotton, as well as the need to trim and rework the finished cotton clumps. The finished cotton clumps may not be able to effectively block microorganisms and dust particles in the outside air, affecting research and production. Utility Model Content

[0004] The purpose of this invention is to overcome the defects of the prior art and provide a cotton swab that facilitates the freeze-drying of microbial culture tubes. It has a uniform cotton swab structure, avoiding the unevenness that occurs during the hand-rubbing process of cotton. Operators can directly operate the loading and unloading component to insert the cotton swab component by hand, making the insertion of cotton easier. At the same time, the loading and unloading component can be removed after the cotton swab component is inserted without affecting the subsequent freeze-drying effect, effectively maintaining the uniformity of freeze-drying, unifying the water sublimation path, preventing contamination, facilitating subsequent sealing operations, and improving the original biological activity of the microbial culture.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A cotton swab for easy freeze-drying of bacterial culture tubes, comprising a cotton swab assembly and a loading / unloading assembly connected to the cotton swab assembly;

[0007] The cotton swab assembly includes a hollow cylindrical structure with a cotton swab head connected to the bottom of the cylindrical structure. The loading and unloading assembly includes a rotating rod. The inner wall of the cylindrical structure is provided with slots extending circumferentially. The bottom of the rotating rod is provided with a card box corresponding to the slot. The sum of the areas of the card box and the slot under the orthographic projection along the axial direction of the cylindrical structure is less than the inner circle area of ​​the cylindrical structure under the orthographic projection along its axial direction.

[0008] In this embodiment, the card box at the bottom of the rotating rod and the slot on the inner wall of the cylindrical structure cooperate with each other. When the card box and the slot correspond, the cotton swab assembly can be inserted into the inoculum tube by rotating the rod. At the same time, after the cotton swab assembly is inserted, there is space left in the cylindrical structure for the operator to remove the loading and unloading assembly, so as to avoid affecting the subsequent freeze-drying operation of the inoculum tube.

[0009] In one embodiment, the cotton swab assembly further includes a support plate connected to the cylindrical structure, the support plate being provided with a hook for connecting to the cotton swab head.

[0010] In one embodiment, the support tray includes a tray frame extending circumferentially along the inoculum tube, and the tray frame is provided with a plurality of connecting rods connected to the bottom edge of the cylindrical structure to form a hollow support tray.

[0011] In one embodiment, a friction section is provided at the end of the rotating rod away from the card box.

[0012] In one embodiment, the card slot is a fan-shaped structure extending along the inner wall of the cylindrical structure, and its arc length is less than half the circumference of the cylindrical structure.

[0013] In one embodiment, the arc length of the slot in the fan-shaped structure is one-quarter of the circumference of the cylindrical structure.

[0014] In one embodiment, the card holder includes two baffles connected to the rotating rod, the two baffles being staggered vertically, and the distance between the two baffles being greater than the thickness of the card slot.

[0015] In one embodiment, the baffle is a fan-shaped structure connected to the rotating rod.

[0016] In one embodiment, the card slot has a positioning groove, and the inner side of the card box has a positioning protrusion corresponding to the positioning groove.

[0017] In one embodiment, the rotating rod is further provided with a positioning rod that is offset from the card box, and the positioning rod is connected to the inner wall of the cylindrical structure by a breakable block.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) This utility model is equipped with a cotton swab assembly and a matching loading and unloading assembly. The standardized cotton swab assembly eliminates the need for manual stuffing of cotton, ensuring the freeze-drying effect. At the same time, the card box at the bottom of the rotating rod and the card slot on the inner wall of the cylindrical structure cooperate with each other. When the card box and the card slot correspond, the rotating rod can quickly insert the cotton swab assembly into the inoculum tube. After inserting the cotton swab assembly, there is space left in the cylindrical structure for the operator to remove the loading and unloading assembly, avoiding any impact on the subsequent freeze-drying operation of the inoculum tube.

[0020] (2) The support tray has a hollow structure, which on the one hand connects the cotton swab head with the hooks set on it, and on the other hand reduces the obstruction of airflow and avoids affecting the freeze-drying of the inoculum tube. Attached Figure Description

[0021] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0022] in:

[0023] Figure 1 A schematic diagram of the structure of this utility model is shown;

[0024] Figure 2 A schematic diagram of the card holder of this utility model is shown;

[0025] Figure 3 A schematic diagram of another embodiment of the present invention is shown;

[0026] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0027] Figure label:

[0028] 1-Friction section, 2-Rotating rod, 3-Cylindrical structure, 4-Support plate, 5-Hook, 6-Cotton swab head, 7-Card slot, 8-Card box, 9-Positioning rod. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] This invention provides a cotton swab for easy freeze-drying of bacterial culture tubes, such as... Figure 1 As shown, it includes a cotton swab assembly and a loading / unloading assembly connected to the cotton swab assembly;

[0031] The cotton swab assembly includes a hollow cylindrical structure 3, with a cotton swab head 6 connected to the bottom of the cylindrical structure 3. The loading and unloading assembly includes a rotating rod 2. The inner wall of the cylindrical structure 3 is provided with a slot 7 extending circumferentially. The bottom of the rotating rod 2 is provided with a card box 8 corresponding to the slot 7. The sum of the areas of the card box 8 and the slot 7 under the orthographic projection along the axis of the cylindrical structure 3 is less than the inner circle area of ​​the cylindrical structure 3 under the orthographic projection along its axis.

[0032] In this embodiment, a cotton swab assembly and its matching loading and unloading assembly are set up. The standardized cotton swab assembly eliminates the need for manual stuffing of cotton, avoiding unevenness during the cotton rubbing process and ensuring the freeze-drying effect. At the same time, the card box 8 at the bottom of the rotating rod 2 and the card slot 7 on the inner wall of the cylindrical structure 3 cooperate with each other. When the card box 8 and the card slot 7 are aligned, the rotating rod 2 can quickly insert the cotton swab assembly into the inoculum tube. After the cotton swab assembly is inserted, space is left in the cylindrical structure 3 for the operator to remove the loading and unloading assembly, so as to ensure that the airflow channel of the inoculum tube is unobstructed and avoid affecting the subsequent freeze-drying operation of the inoculum tube.

[0033] In one embodiment, such as Figure 1As shown, the cotton swab assembly also includes a support plate 4 connected to the cylindrical structure 3. The support plate 4 is provided with a hook 5 connected to the cotton swab head 6. The support plate 4 includes a plate frame extending along the circumference of the inoculum tube. The plate frame is provided with multiple connecting rods connected to the bottom edge of the cylindrical structure 3 to form a hollow support plate 4.

[0034] In this embodiment, the support plate 4 is used to connect the cotton swab head 6 and the cylindrical structure 3 to form an integrated cotton swab assembly. The support plate 4 has a plate frame that extends along the circumference of the inoculum tube. The plate frame is connected to the hook 5, and the connecting rod on the plate frame is connected to the cylindrical structure 3. In this way, while forming an integrated cotton swab assembly, the obstruction to the airflow is reduced, so as to avoid affecting the freeze-drying effect of the inoculum tube.

[0035] In one embodiment, such as Figure 1 As shown, a friction section 1 is also provided at the end of the rotating rod 2 away from the card box 8, which makes it convenient for the operator to hold the rotating rod 2 for rotation and extension operations, and avoids slippage.

[0036] In one embodiment, the KAGA 7 is a fan-shaped structure extending along the inner wall of the cylindrical structure 3, and its arc length is less than half of the circumference of the cylindrical structure 3.

[0037] Furthermore, the arc length of the fan-shaped card slot 7 is one-quarter of the circumference of the cylindrical structure 3. That is, the arc length of the card slot 7 is set to one-quarter of the circumference of the cylindrical structure 3. On the one hand, it is convenient to push the card slot 7 using the card box 8 at the bottom of the rotating rod 2. On the other hand, after the rotating rod 2 is removed, the card box 8 inside the cylindrical structure 3 is prevented from affecting the airflow.

[0038] In one embodiment, such as Figure 2 As shown, the card box 8 includes two baffles connected to the rotating rod 2. The two baffles are staggered vertically, and the distance between the two baffles is greater than the thickness of the card slot 7. The baffles are fan-shaped structures connected to the rotating rod 2.

[0039] In one embodiment, the card slot 7 is provided with a positioning groove, and the inner side of the card box 8 is provided with a positioning protrusion corresponding to the positioning groove, that is, the initial position of the card box 8 is positioned. The positioning protrusion of the card box 8 is set in the positioning groove of the card slot 7 to prevent the loading and unloading components from falling into the inoculum tube due to accidental contact when not in use. After the cotton swab component is inserted into the inoculum tube, the card box 8 is lifted upward and rotated to be offset from the card slot 7, and then it can be taken out from the inoculum tube.

[0040] In one embodiment, such as Figure 3As shown, the rotating rod 2 is also provided with a positioning rod 9 that is offset from the card box 8. The positioning rod 9 is connected to the inner wall of the cylindrical structure 3 by a breakable block. That is, the initial position of the rotating rod 2 is fixed by the positioning rod 9 to prevent the loading and unloading components from falling into the inoculum tube due to accidental contact when not in use. When in use, the connection between the positioning rod 9 and the cylindrical structure 3 can be easily broken by the operator pushing it to insert the cotton swab component.

[0041] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A cotton swab for easy freeze-drying of bacterial culture tubes, characterized in that, Includes a cotton swab assembly and a loading / unloading assembly connected to the cotton swab assembly; The cotton swab assembly includes a hollow cylindrical structure with a cotton swab head connected to the bottom of the cylindrical structure. The loading and unloading assembly includes a rotating rod. The inner wall of the cylindrical structure is provided with slots extending circumferentially. The bottom of the rotating rod is provided with a card box corresponding to the slot. The sum of the areas of the card box and the slot under the orthographic projection along the axial direction of the cylindrical structure is less than the inner circle area of ​​the cylindrical structure under the orthographic projection along its axial direction.

2. The cotton swab for easy freeze-drying of bacterial culture tubes according to claim 1, characterized in that, The cotton swab assembly also includes a support plate connected to the cylindrical structure, and the support plate is provided with a hook for connecting to the cotton swab head.

3. The cotton swab for easy freeze-drying of bacterial culture tubes according to claim 2, characterized in that, The support tray includes a tray frame extending circumferentially along the inoculum tube, and the tray frame is provided with multiple connecting rods that are connected to the bottom edge of the cylindrical structure to form a hollow support tray.

4. The cotton swab for easy freeze-drying of bacterial culture tubes according to claim 1, characterized in that, A friction section is also provided at the end of the rotating rod away from the card box.

5. The cotton swab for easy freeze-drying of bacterial culture tubes according to claim 1, characterized in that, The card slot is a fan-shaped structure extending along the inner wall of the cylindrical structure, and its arc length is less than half of the circumference of the cylindrical structure.

6. The cotton swab for easy freeze-drying of bacterial culture tubes according to claim 5, characterized in that, The arc length of the slot in the fan-shaped structure is one-quarter of the circumference of the cylindrical structure.

7. The cotton swab for easy freeze-drying of bacterial culture tubes according to claim 1, characterized in that, The card box includes two baffles connected to the rotating rod. The two baffles are staggered vertically, and the distance between the two baffles is greater than the thickness of the card slot.

8. The cotton swab for easy freeze-drying of bacterial culture tubes according to claim 7, characterized in that, The baffle is a fan-shaped structure connected to the rotating rod.

9. A cotton swab for easy freeze-drying of bacterial culture tubes according to claim 1, characterized in that, The card slot has a positioning groove, and the inner side of the card box has a positioning protrusion corresponding to the positioning groove.

10. A cotton swab for easy freeze-drying of bacterial culture tubes according to claim 1, characterized in that, The rotating rod is also provided with a positioning rod that is offset from the card box, and the positioning rod is connected to the inner wall of the cylindrical structure by a breakable block.

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