Efficient coating culture dish
By designing the rotating shaft and elastic components of the bottom shell, top cover, and stirring rod, the culture medium can be applied with one hand, solving the problem of traditional petri dishes requiring two hands and improving the ease of operation and application effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-15
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional petri dishes require two hands to spread sample solutions, which is cumbersome and makes it difficult to operate conveniently with one hand.
A highly efficient coating petri dish was designed, which adopts a bottom shell, top cover and stirring rod structure. The coating can be operated by one hand through the cooperation of the rotating shaft and elastic element. The rotating shaft and top cover are controlled by the thumb and forefinger respectively, so as to achieve coating and resetting of the stirring rod.
It enables one-handed operation for spreading culture medium, improving ease of operation, avoiding the mixing rod from penetrating too deeply into the culture medium and affecting the spreading quality, and facilitating the storage and use of the device.
Smart Images
Figure CN223983642U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of culture dishes, in particular to a high-efficiency culture dish. BACKGROUND
[0002] The culture dish is a laboratory vessel for microorganism or cell culture, which is composed of a flat disc-shaped bottom shell and a top cover, and is generally made of glass or plastic.
[0003] The traditional culture dish needs to be uniformly smeared after the sample solution is added. In the actual operation process, the staff first opens the top cover, then fixes the bottom shell with one hand and holds an L-shaped glass rod with the other hand, and then rotates the glass rod or the bottom shell to complete the uniform smearing of the sample solution.
[0004] In actual use, the staff needs to open the top cover and operate with both hands, which is relatively troublesome and needs to be improved. CONTENT OF THE INVENTION
[0005] In order to realize single-handed operation of the culture dish during smearing of the sample solution and improve the operation convenience, the application provides a high-efficiency culture dish.
[0006] The application provides a high-efficiency culture dish, which adopts the following technical scheme:
[0007] The high-efficiency culture dish comprises a bottom shell, a top cover arranged on the bottom shell, and a stirring rod arranged between the bottom shell and the top cover, a stirring cavity is formed between the bottom shell and the top cover, a rotating shaft is rotatably connected to the top cover, one end of the rotating shaft is fixedly connected with the stirring rod, the other end of the rotating shaft penetrates through the top cover and is located outside the top cover, the rotating shaft can slide along the axial direction of the rotating shaft, and an elastic member is arranged on the top cover and used for preventing the rotating shaft from sliding under the action of no external force.
[0008] By adopting the above technical scheme, in use, the thumb and the middle finger of one hand of the staff abut against the bottom shell and the rotating shaft respectively, the thumb presses the rotating shaft, the stirring rod is in contact with the culture medium liquid surface, then the top cover is pushed by the index finger, the top cover and the bottom shell are synchronously rotated, single-handed operation is realized, the stirring cavity is smeared, after smearing, the elastic member drives the rotating shaft to slide back to position, the stirring rod is separated from the culture medium, and the subsequent use is ensured, so that the use is simple and convenient.
[0009] Preferably, a pressing block is fixed to the end of the rotating shaft away from the stirring rod, a recessed groove for pressing the finger is arranged on the pressing block, the elastic member is located between the top cover and the pressing block, and a limiting structure for limiting the pressing height of the pressing block is further arranged on the top cover.
[0010] By adopting the technical scheme, when in use, the pressing block and the embedding groove are matched, so that the staff can fix or press the rotating shaft more conveniently, and the limiting structure is arranged to limit the descending height of the stirring rod, so as to ensure the subsequent smearing effect of the stirring rod.
[0011] Preferably, the elastic member is a return spring, the return spring is sleeved on the rotating shaft, one end of the return spring abuts against the pressing block, and the other end of the return spring abuts against the top cover.
[0012] By adopting the technical scheme, when in use, the return spring ensures that the stirring rod is separated from the culture medium without external force, and does not affect the subsequent pressing of the pressing block by the staff, and when the pressing block is released after being pressed, the stirring rod can be automatically reset for subsequent use.
[0013] Preferably, the limiting structure comprises an abutting ring fixed on the top cover, the abutting ring is coaxially arranged with the rotating shaft, and one end of the abutting ring away from the top cover abuts against the pressing block in a matched manner.
[0014] By adopting the technical scheme, when in use, the abutting ring and the pressing block are matched to limit the maximum sliding distance of the stirring rod and the rotating shaft, so as to avoid that the stirring rod is too deep into the culture medium solution due to excessive force, thereby affecting the subsequent smearing quality.
[0015] Preferably, a receiving groove is formed in the top cover, and the abutting ring, the elastic member and the pressing block are arranged in the receiving groove.
[0016] By adopting the technical scheme, when in use, the pressing block, the elastic member and the abutting ring are hiddenly arranged on the top cover through the receiving groove, so as to facilitate the storage of the overall device.
[0017] Preferably, an adjusting ring is further arranged between the abutting ring and the pressing block, one end of the adjusting ring is threadedly matched with the abutting ring, and the other end of the adjusting ring abuts against the pressing block in a matched manner.
[0018] By adopting the technical scheme, when in use, the height of the adjusting ring is adjusted by rotating the adjusting ring under the thread cooperation of the abutting ring, so as to change the distance between the adjusting ring and the pressing block, thereby changing the maximum pressing distance of the pressing block, and then the stirring rod can be ensured to be lowered to an appropriate height for smearing under different culture medium liquid surfaces, and the applicability of the device is improved.
[0019] Preferably, an anti-skid pattern is arranged on the outer wall of the adjusting ring.
[0020] By adopting the technical scheme, when in use, the anti-skid pattern facilitates the staff to rotate the adjusting ring.
[0021] Preferably, the outer wall of the top cover is provided with anti-skid protrusions facilitating the staff to push.
[0022] By adopting the technical scheme, when in use, the anti-skid protrusions facilitate the staff to push the top cover with one hand, thereby facilitating to ensure the smearing effect of the stirring rod.
[0023] To sum up, the application has at least one of the following beneficial technical effects:
[0024] 1. When in use, the thumb and middle finger of one hand of the staff abut against the bottom shell and the rotating shaft respectively, and the thumb pushes down the rotating shaft, so that the stirring rod is in contact with the liquid surface of the culture medium, then the top cover is pushed by the index finger, so that the top cover and the bottom shell rotate synchronously, thereby achieving the purpose of one-handed operation to smear the stirring cavity, after smearing, the elastic member drives the rotating shaft to slide back to position, so as to drive the stirring rod to separate from the culture medium, thereby ensuring subsequent use, which is simple and convenient to use.
[0025] 2. Through the cooperation of the abutting ring and the adjusting ring, the staff can limit the maximum downward pressing distance of the pressing block according to the use needs, thereby avoiding that the stirring rod is too deep into the culture medium solution due to excessive force, which is more conducive to use.
[0026] 3. Through the arrangement of the storage groove, the pressing block, the elastic member and the abutting ring are hiddenly arranged in the top cover, thereby facilitating the storage of the whole device. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is the isometric view of the main embodiment of the application, which mainly embodies the overall structure;
[0028] Figure 2 is the exploded view of the main embodiment of the application, which mainly embodies the overall structure;
[0029] Figure 3 is the sectional view of the main embodiment of the application, which mainly embodies the overall structure;
[0030] Figure 4 is the exploded view of the main embodiment of the application, which mainly embodies the overall structure;
[0031] Figure 5 is the sectional view of the main embodiment of the application, which mainly embodies the overall structure.
[0032] Mark: 1, bottom shell; 2, top cover; 21, storage groove; 22, anti-skid protrusion; 3, stirring rod; 4, stirring cavity; 5, rotating shaft; 6, elastic member; 7, pressing block; 71, embedded groove; 8, limiting structure; 81, abutting ring; 9, adjusting ring; 91, anti-skid pattern; 10, bearing. DETAILED DESCRIPTION
[0033] The application will be further described below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 5 The application will be further described below with reference to the accompanying drawings.
[0034] The application discloses a high-efficiency coating culture dish.
[0035] Embodiment 1
[0036] Referring to Figure 1 and Figure 2 , a high-efficiency coating culture dish comprises a bottom shell 1 horizontally placed, a top cover 2 and a stirring rod 3, in the embodiment, the bottom shell 1 and the top cover 2 are both cylindrically arranged, the top cover 2 is buckled on the bottom shell 1, a stirring cavity 4 is formed between the bottom shell 1 and the top cover 2, the stirring rod 3 is located between the bottom shell 1 and the top cover 2, a rotating shaft 5 is coaxially arranged on the top cover 2, the bottom end of the rotating shaft 5 is located in the stirring cavity 4, the top end of the rotating shaft 5 is located above the top cover 2 after penetrating through the top cover 2, the rotating shaft 5 is rotatably connected with the top cover 2 through a bearing 10, and the rotating shaft 5 can slide along the axial direction of itself, and the stirring rod 3 is integrally formed at the bottom end of the rotating shaft 5.
[0037] Referring to Figure 1 and Figure 2 , in the application, the stirring rod 3 can be arranged in plurality, and the plurality of stirring rods 3 are uniformly distributed on the circumferential side of the rotating shaft 5 at intervals, the axis of the stirring rod 3 is perpendicular to the axis of the rotating shaft 5, in the embodiment, the stirring rod 3 is preferably arranged in three, and an elastic member 6 is further arranged on the top cover 2, the elastic member 6 is used for limiting the position of the rotating shaft 5, so as to avoid the downward sliding of the rotating shaft 5 under no external force, that is, when a worker puts the culture medium solution into the bottom shell 1, in the initial state, the stirring rod 3 can be ensured to be separated from the culture medium when not in use through the elastic member 6, so as to avoid the long-time contact of the stirring rod 3 with the culture medium.
[0038] Referring to Figure 1 and Figure 3 , in actual operation, the worker can make the thumb and the middle finger of one hand abut against the top end of the rotating shaft 5 and the bottom shell 1 respectively, then the thumb exerts force to press down the rotating shaft 5, so that the rotating shaft 5 drives the stirring rod 3 to move downward to contact the culture medium, then the index finger pushes the top cover 2, so that the top cover 2 and the bottom shell 1 relatively rotate with the stirring rod 3, that is, the solution in the culture medium can be coated through the stirring rod 3, after the coating is completed, only the pressing force on the rotating shaft 5 needs to be cancelled, under the action of the elastic member 6, the stirring rod 3 and the rotating shaft 5 move upward to be separated from the culture medium, so as to avoid affecting the subsequent use.
[0039] Referring to Figure 1 and Figure 3In order to facilitate the staff to press the force of the rotating shaft 5, the top end of the rotating shaft 5 is also clamped and fixed with a pressing block 7. In this embodiment, the pressing block 7 is disc-shaped, and the outer diameter of the pressing block 7 is larger than the outer diameter of the rotating shaft 5. At the same time, a embedding groove 71 is formed on the top surface of the pressing block 7. In use, the thumb of the staff can be limited through the embedding groove 71, so as to avoid the relative sliding between the fingers and the pressing block 7 when rotating the top cover 2 and the bottom shell 1. In order to facilitate the staff to rotate the top cover 2, an anti-skid convex strip 22 is formed on the outer side wall of the top cover 2. The anti-skid convex strip 22 is provided with a plurality of anti-skid convex strips 22, and the plurality of anti-skid convex strips 22 are uniformly distributed on the circumferential side of the top cover 2.
[0040] Referring to Figure 1 and Figure 3 In this application, the elastic member 6 is preferably a return spring. The return spring is located between the pressing block 7 and the top cover 2, and is sleeved on the rotating shaft 5. One end of the return spring abuts against the top cover 2, and the other end of the return spring abuts against the bottom wall of the pressing block 7. In use, in the initial state, the pressing block 7 is supported by the elastic force of the return spring, so as to ensure that the pressing block 7 does not have a downward trend without external force. When the staff presses the pressing block 7 downward, the return spring is compressed. When the force on the pressing block 7 is cancelled, the pressing block 7 returns to the initial state under the elastic force of the return spring.
[0041] Referring to Figure 1 and Figure 3 A limiting structure 8 is arranged on the top cover 2. The limiting structure 8 is used to limit the maximum downward pressing height of the pressing block 7. In actual use, the staff needs to press the pressing block 7, so as to ensure that the stirring rod 3 can contact the culture medium during the rotation of the top cover 2, and the stirring rod 3 can smear the culture medium. In the process of pressing the pressing block 7, in order to avoid that the stirring rod 3 moves downward too much due to excessive force, the limiting structure 8 can limit the maximum sliding distance of the pressing block 7, which is more convenient for the staff to use with one hand.
[0042] Referring to Figure 1 and Figure 3 The limiting structure 8 includes an abutting ring 81. The abutting ring 81 is coaxially arranged with the rotating shaft 5. The bottom end of the abutting ring 81 is integrally formed on the top cover 2. The top end of the abutting ring 81 abuts and cooperates with the pressing block 7. The return spring is located inside the abutting ring 81. When the return spring is in the initial state, there is a gap between the top end of the abutting ring 81 and the bottom wall of the pressing block 7. In use, when the staff presses the pressing block 7 and the bottom wall of the pressing block 7 abuts against the top end surface of the abutting ring 81, the abutting ring 81 can support and limit the pressing block 7, preventing the pressing block 7 from moving downward further, which causes the stirring rod 3 to extend into the culture medium too deeply.
[0043] Referring to Figure 1 and Figure 3In addition, to facilitate the storage of the device when not in use, a storage groove 21 is integrally formed on the top of the top cover 2. The abutment ring 81, elastic member 6, and pressure block 7 are all set in the storage groove 21. When the elastic member 6 is in the initial state, the top surface of the pressure block 7 is not higher than the edge of the groove opening of the storage groove 21. That is, through this design structure, the abutment ring 81, elastic member 6, and pressure block 7 are embedded in the top cover 2, which facilitates the storage of the device and makes it more convenient to use.
[0044] The implementation principle of this application embodiment is as follows: In use, first open the top cover 2, put the culture medium solution into the bottom shell 1, and then fasten the top cover 2 onto the bottom shell 1. Then, the operator supports the bottom surface of the bottom shell 1 with the middle finger of one hand and places the thumb in the groove 71 of the pressure block 7. Then, apply force to press down the pressure block 7, so that the rotating shaft 5 and the stirring rod 3 move down to contact the culture medium. At this time, the return spring is compressed, and the bottom wall of the pressure block 7 abuts against the top surface of the abutment ring 81. Then, by moving the anti-slip protrusion 22 of the top cover 2 with the index finger, the top cover 2 and the bottom shell 1 and the stirring rod 3 can rotate relative to each other, thereby achieving the application of the culture medium. After the application is completed, simply release the downward pressure on the pressure block 7. Under the action of the return spring, the pressure block 7 drives the rotating shaft 5 and the stirring rod 3 to move up and reset synchronously, thereby detaching from the culture medium for subsequent use. The entire device can achieve the application of the culture medium with one hand, which is simple and convenient to use.
[0045] The difference between Example 2 and Example 1 is that:
[0046] Reference Figure 4 and Figure 5 In this embodiment, an adjusting ring 9 is also provided between the abutment ring 81 and the pressure block 7. The inner wall of the bottom end of the adjusting ring 9 is formed with an internal thread, and the outer wall of the top end of the abutment ring 81 is formed with an external thread. The adjusting ring 9 is threadedly connected to the abutment ring 81, and the top end of the adjusting ring 9 abuts against the bottom wall of the pressure block 7. That is, in actual use, different staff members add different culture media to the bottom shell 1 when using the petri dish. In order to facilitate the staff to adjust the maximum downward movement height of the pressure block 7 according to the needs of use, in this application, the adjusting ring 9 can be rotated to slide along the axial direction of the abutment ring 81, thereby changing the distance between the top end of the adjusting ring 9 and the pressure block 7. Based on this, the maximum downward pressure distance of the pressure block 7 can be adjusted.
[0047] Reference Figure 4 and Figure 5 To further improve the ease of operation for staff to rotate the adjusting ring 9, anti-slip texture 91 is formed on the outer wall of the adjusting ring 9. During use, the anti-slip texture 91 can increase the friction between the adjusting ring 9 and the fingers, making it easier for staff to rotate the adjusting ring 9.
[0048] The implementation principle of this application embodiment is as follows: When in use, first open the top cover 2 and put the culture medium solution into the bottom shell 1. Then, fasten the top cover 2 onto the bottom shell 1. After that, the operator can first adjust the height of the adjusting ring 9 by observing the height of the culture medium liquid level. The optimal height is when the pressure block 7 abuts against the top of the adjusting ring 9 and the stirring rod 3 contacts the culture medium. Then, the operator supports the bottom surface of the bottom shell 1 with one middle finger and places the thumb in the groove 71 of the pressure block 7. Then, apply force to press down the pressure block 7, so that the rotating shaft 5 and the stirring rod 3 move down to contact the culture medium. At this time, the return spring is compressed, and the bottom wall of the pressure block 7 abuts against the top surface of the abutment ring 81. Finally, by moving the anti-slip protrusion 22 of the top cover 2 with the index finger, the top cover 2 and the bottom shell 1 and the stirring rod 3 can rotate relative to each other, thereby achieving the application of the culture medium.
[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high efficiency coated petri dish, characterized by: The utility model provides a stirring device, including bottom shell (1), set up on bottom shell (1) top cover (2) and set up between bottom shell (1) and top cover (2) stirring rod (3), form stirring cavity (4) between bottom shell (1) and top cover (2), top cover (2) rotatory connection has rotating shaft (5), rotating shaft (5) one end and stirring rod (3) fixed connection, rotating shaft (5) other end passes through top cover (2) and is located top cover (2) outside, rotating shaft (5) can slip along the own axial direction, top cover (2) is provided with the elastic part (6) for preventing rotating shaft (5) from slipping under no external force action.
2. The high efficiency coated petri dish of claim 1, wherein: Rotating shaft (5) is fixed with the pressing block (7) away from stirring rod (3) one end, the pressing block (7) is seted up with the embedded slot (71) of being convenient for finger pressing, the elastic part (6) is located between top cover (2) and pressing block (7), top cover (2) is also provided with the limiting structure (8) for limiting the pressing block (7) height of pressing.
3. The high efficiency coated petri dish of claim 2, wherein: The elastic element (6) is a return spring, the return spring is sleeved on the rotating shaft (5), and one end of the return spring abuts against the pressing block (7), and the other end of the return spring abuts against the top cover (2).
4. The high efficiency coated petri dish of claim 2, wherein: The limiting structure (8) includes an abutting ring (81) fixed to the top cover (2), the abutting ring (81) is coaxially arranged with the rotating shaft (5), and one end of the abutting ring (81) away from the top cover (2) abuts against the pressing block (7).
5. The high efficiency coated petri dish of claim 4, wherein: The top cover (2) is provided with a receiving groove (21), and the abutting ring (81), the elastic element (6) and the pressing block (7) are arranged in the receiving groove (21).
6. The high efficiency coated petri dish of claim 4, wherein: An adjusting ring (9) is further arranged between the abutting ring (81) and the pressing block (7), one end of the adjusting ring (9) is threadedly connected with the abutting ring (81), and the other end of the adjusting ring (9) abuts against the pressing block (7).
7. A high efficiency coated petri dish according to claim 6, wherein: The outer wall of the adjusting ring (9) is provided with anti-skid lines (91).
8. The high efficiency coated petri dish of claim 1, wherein: The outer wall of the top cover (2) is provided with anti-skid protrusions (22) for facilitating the staff to push.