Culture medium dividing device for culture dish
By designing a medium segmentation device for a culture dish, the problem of instability in the culture medium segmentation is solved, and the uniformity of the size of the culture blocks and the accuracy of the experimental results are achieved.
Patent Information
- Application Number
- CN202421656732.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In the prior art, the segmentation of the culture medium in the culture dish is unstable, resulting in inaccurate experimental results.
A culture medium segmentation device for a petri dish is provided, including a docking base, a knife base and an elastic reset member. The docking seat is socketed at the opening of the Petri dish. There are multiple blades on the knife seat for dividing the culture medium. The elastic resetting member drives the operating lever to move upwards to realize the reset of the blade.
This device makes the culture medium segmentation more stable and uniform, improves the accuracy of experimental results, and saves time and effort.
Smart Images
Figure CN222768502U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bacterial strain cultivation, and more specifically relates to a culture medium dividing device for a culture dish. Background Art
[0002] A culture dish is a laboratory vessel used for culturing microorganisms or cells. It consists of a flat, disc-shaped bottom and a lid, and is generally made of glass or plastic. After the culture dish is inoculated with bacteria, experimenters often divide the culture medium in the dish into small pieces of uniform size in order to observe the growth and reproduction density of the bacteria, and also to prepare for subsequent control experiments.
[0003] Currently, after inoculating the culture dish with bacteria, the experimenter usually divides the culture medium with a handheld knife.
[0004] The inventors found that due to the instability of manual segmentation, the size of each segmentation was inconsistent, resulting in great differences in the growth of bacteria on culture blocks of different sizes, leading to inaccurate experimental results. Utility Model Content
[0005] The purpose of the present application is to provide a culture medium dividing device for a culture dish, so as to solve the technical problem in the prior art that the culture medium division in the culture dish is unstable, resulting in inaccurate experimental structure.
[0006] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a culture medium dividing device for a culture dish, wherein the culture dish has an opening facing upward, comprising:
[0007] The docking seat adopts a structure with a hollow interior and an open lower end, and is used to be sleeved on the opening of the culture dish; and the docking seat has a through hole that is connected to the interior and penetrates in the up-down direction;
[0008] a knife seat, slidably disposed in the docking seat in an up-down direction, having a plurality of blades for dividing the culture medium on its lower side and an operating rod extending through the through hole on its upper side; and
[0009] An elastic return member is arranged between the protruding end of the operating rod and the docking seat, and is used to drive the operating rod to move upward relative to the docking seat.
[0010] Preferably, the inner wall of the docking seat has a plurality of limit grooves which are arranged at intervals along the circumference of the docking seat and extend in the up-down direction, and the outer wall of the knife seat has a plurality of bosses which are correspondingly embedded in the plurality of limit grooves.
[0011] Preferably, the elastic reset member is a compression spring; the compression spring is sleeved on the operating rod, and its upper and lower ends are respectively connected to the protruding end of the operating rod and the upper end surface of the docking seat;
[0012] Wherein, when the knife seat moves downward relative to the docking seat, the compression spring is in an elastically contracted state.
[0013] Preferably, the upper end of the docking seat has a groove which is coaxially connected to the through hole and for the compression spring to be embedded in.
[0014] Preferably, the inner top surface of the docking seat has a plurality of arc-shaped plates arranged at intervals along its circumference and each used to pass through the opening and be inserted into the culture dish.
[0015] Preferably, the inner peripheral wall of the docking seat and the outer side surface of the arc-shaped plate are both connected with an anti-slip film for connecting with the culture dish.
[0016] Preferably, the extended end of the operating rod has a handle extending radially outwardly therefrom.
[0017] Preferably, the upper end surface of the docking seat has an upward protrusion, and the through hole is arranged through the protrusion.
[0018] Preferably, the protrusion adopts a conical structure.
[0019] Preferably, the plurality of blades are arranged alternately in a horizontal direction to form a mesh structure.
[0020] In an embodiment of the present application, the device is sleeved on the opening of the culture dish, and the experimenter can drive the knife holder to move toward the inner bottom surface of the culture dish by pressing the operating rod, and the multiple blades on the knife holder can divide the culture medium in the culture dish; after the division is completed, the experimenter removes the external force applied to the operating rod, and the operating rod moves upward under the drive of the elastic reset member, and at the same time, the knife holder moves upward under the drive of the operating rod, so that the multiple blades are away from the culture medium, and then the experimenter removes the device from the culture dish; repeat the above operation to divide other culture media.
[0021] Compared with the prior art, the culture medium dividing device for a culture dish provided in the embodiment of the present application enables experimenters to divide the culture medium in the culture dish in a time-saving and labor-saving manner, and the culture pieces after division are uniform in size, thereby improving the accuracy of the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0023] Figure 1 A schematic diagram of the three-dimensional structure of a culture medium dividing device for a culture dish provided in an embodiment of the present application;
[0024] Figure 2 A schematic diagram of the exploded structure of the culture medium dividing device for a culture dish provided in an embodiment of the present application;
[0025] Figure 3 The main structure diagram of the culture medium dividing device for a culture dish provided in an embodiment of the present application is shown in FIG. Figure 1 ;
[0026] Figure 4 For along Figure 3 Schematic diagram of the cross-sectional structure along the AA line;
[0027] Figure 5 The main structure diagram of the culture medium dividing device for a culture dish provided in an embodiment of the present application is shown in FIG. Figure 2 (When mounted on a culture dish);
[0028] Figure 6 For along Figure 5 Schematic diagram of the cross-sectional structure along line BB.
[0029] Among them, the reference numerals in the figure are:
[0030] 1. docking seat; 11. through hole; 12. groove; 13. arc plate; 14. raised portion; 15. limit groove; 2. knife seat; 21. blade; 22. boss; 3. operating lever; 31. handle; 4. elastic reset member; 5. anti-slip film; 6. culture dish. DETAILED DESCRIPTION
[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0033] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 application.
[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0035] Please also read Figures 1 to 6 The culture medium dividing device for a culture dish provided in the present application is now described. The culture medium dividing device for a culture dish comprises a docking seat 1, a knife seat 2 and an elastic reset member 4.
[0036] It should be supplemented that the culture dish 6 has an opening facing upwards, and the culture dish 6 is made of glass, and the interior thereof is used to contain culture medium for cultivating bacterial strains.
[0037] The docking seat 1 has a structure with a hollow interior and an open lower end, and is used to be sleeved on the opening of the culture dish 6; and the docking seat 1 has a through hole 11 that is connected to the interior and penetrates in the up and down directions; the docking seat 1 can be made of resin or nylon material by 3D printing, and has the advantages of low cost and easy production; the size of the docking seat 1 is adapted according to the specifications and models of the culture dish 6 to be installed.
[0038] The knife seat 2 is slidably arranged in the docking seat 1 along the up and down directions, and its lower side has a plurality of blades 21 for dividing the culture medium, and its upper side has an operating rod 3 that passes through the through hole 11 and extends out; the plurality of blades 21 are connected to the knife seat 2 in a detachable manner, wherein the specific number and shape of the blades 21 can be adjusted according to experimental needs; the size and shape of the blocks after the culture medium is divided can be adjusted by replacing a plurality of blades 21, thereby improving the applicability of the device.
[0039] The elastic reset member 4 is arranged between the protruding end of the operating rod 3 and the docking seat 1, and is used to drive the operating rod 3 to move upward relative to the docking seat 1; the elastic reset member 4 can replace manpower to reset the knife seat 2 after the experimenter completes the splitting operation; the operating steps of the device are simplified, saving time and effort.
[0040] In the embodiment of the present application, the device is sleeved on the opening of the culture dish 6, and the experimenter can drive the knife holder 2 to move toward the inner bottom surface of the culture dish 6 by pressing the operating rod 3, and the multiple blades 21 on the knife holder 2 can divide the culture medium in the culture dish 6; after the division is completed, the experimenter removes the external force applied to the operating rod 3, and the operating rod 3 moves upward under the drive of the elastic reset member 4, and at the same time, the knife holder 2 moves upward under the drive of the operating rod 3, so that the multiple blades 21 are away from the culture medium, and then the experimenter removes the device from the culture dish 6; repeat the above operation to divide other culture media.
[0041] Compared with the prior art, the culture medium dividing device for a culture dish provided in the embodiment of the present application enables experimenters to divide the culture medium in the culture dish 6 in a time-saving and labor-saving manner, and the culture pieces after division are uniform in size, thereby improving the accuracy of the experimental results.
[0042] In some embodiments, see Figure 2 As a specific embodiment of the culture medium dividing device for a culture dish provided in the present application, the inner wall of the docking seat 1 has a plurality of limit grooves 15 which are arranged at intervals along the circumference of the docking seat 1 and extend in the up and down directions, and the outer wall of the knife seat 2 has a plurality of bosses 22 which are correspondingly embedded in the plurality of limit grooves 15.
[0043] By adopting the above technical solution, the limiting groove 15 and the boss 22 together form a limiting structure. When the knife seat 2 and the docking seat 1 move relative to each other, the outer wall of the boss 2 is suitable for abutting against the inner wall of the limiting groove 15 to prevent the knife seat 2 and the docking seat 1 from rotating relative to each other, thereby preventing the knife seat 2 from rotating and damaging the culture medium.
[0044] In some embodiments, please refer to Figures 1 to 6 As a specific embodiment of the culture medium dividing device for a culture dish provided in the present application, the elastic reset member 4 is a compression spring; the compression spring is sleeved on the operating rod 3, and its upper and lower ends are respectively connected to the protruding end of the operating rod 3 and the upper end surface of the docking seat 1; the compression spring has the advantages of simple structure, low cost and easy maintenance.
[0045] When the knife seat 2 moves downward relative to the docking seat 1, the compression spring is in an elastically contracted state.
[0046] By adopting the above technical solution, after the experimenter completes the segmentation operation, the compression spring releases the stored elastic potential energy, and the elastic potential energy replaces manpower to reset the knife holder 2; the compression spring simplifies the operating steps of the device, saving time and effort.
[0047] In some embodiments, please refer to Figure 4 and Figure 6As a specific embodiment of the culture medium dividing device for a culture dish provided in the present application, the upper end of the docking seat 1 has a groove 12 which is coaxially connected to the through hole 11 and for the compression spring to be embedded.
[0048] By adopting the above technical solution, the groove 12 can ensure that the embedded end of the compression spring does not produce radial shaking during use, thereby ensuring the stability of the compression spring and improving the overall aesthetics of the device.
[0049] In some embodiments, please refer to Figure 2 , Figure 4 and Figure 6 As a specific embodiment of the culture dish culture medium dividing device provided in the present application, the inner top surface of the docking seat 1 has a plurality of arc-shaped plates 13 arranged at intervals along its circumference and each used to pass through the opening and insert the culture dish 6.
[0050] By adopting the above technical solution, multiple curved plates 13 are inserted into the opening of the culture dish 6, and the outer walls of the multiple curved plates 13 can abut against the outer wall of the culture dish 6 and deform, thereby fixing the culture dish 6 inside the docking seat 1 to ensure that the culture dish 6 and the docking seat 1 do not rotate relative to each other.
[0051] In some embodiments, see Figure 2 As a specific embodiment of the culture medium dividing device for a culture dish provided in the present application, the inner peripheral wall of the docking seat 1 and the outer side surface of the arc plate 13 are both connected with an anti-slip film 5 for connecting with the culture dish 6.
[0052] By adopting the above technical solution, when the experimenter puts the device on the culture dish 6, the anti-slip film 5 can increase the friction between the docking seat 1 and the curved plate 13 and the docking seat 1, making it more difficult for the culture dish 6 and the docking seat 1 to rotate relative to each other.
[0053] In some embodiments, please refer to Figures 1 to 6 As a specific embodiment of the culture medium dividing device for a culture dish provided in the present application, the extended end of the operating rod 3 has a handle 31 extending radially outward.
[0054] By adopting the above technical solution, the experimenter can conveniently hold the handle 31 to apply external force to the operating rod 3, thereby improving the comfort of using the device.
[0055] In some embodiments, please refer to Figures 1 to 6 As a specific embodiment of the culture medium dividing device for a culture dish provided in the present application, the upper end surface of the docking seat 1 has an upward protrusion 14, and the through hole 11 is arranged through the protrusion 14.
[0056] By adopting the above technical solution, the protrusion 14 can provide a guide for the operating rod 3, and at the same time, the protrusion 14 can also provide an area for the experimenter to hold.
[0057] In some embodiments, please refer to Figures 1 to 6 As a specific embodiment of the culture medium dividing device for a culture dish provided in the present application, the protrusion 14 adopts a conical structure.
[0058] By adopting the above technical solution, the protrusion 14 adopts a conical structure to improve the grip comfort of the experimenter when transporting the device.
[0059] In some embodiments, please refer to Figures 1 to 6 As a specific embodiment of the culture medium dividing device for a culture dish provided in the present application, a plurality of blades 21 are arranged in an alternating manner in the horizontal direction to form a mesh structure; the blades 21 of the mesh structure can adjust the distance between the blades 21 according to the cutting requirements, that is, adjust the size of the mesh opening, thereby adjusting the size of the blocks into which the culture medium is divided.
[0060] By adopting the above technical solution, the blade 21 with a mesh structure can complete the division of the culture medium by performing a division action once, which greatly improves the efficiency of dividing the culture medium. In addition, the blade 21 can be replaced and adjusted, which improves applicability.
[0061] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A culture medium dividing device for a culture dish, wherein the culture dish (6) has an opening facing upward; characterized in that: include: The docking seat (1) has a hollow interior and an open lower end, and is used to be sleeved on the opening of the culture dish (6); and the docking seat (1) has a through hole (11) that is connected to the interior and penetrates in the up-down direction; a knife seat (2) slidably disposed in the docking seat (1) in an up-down direction, the lower side of which has a plurality of blades (21) for dividing the culture medium, and the upper side of which has an operating rod (3) extending through the through hole (11); and An elastic return member (4) is arranged between the protruding end of the operating rod (3) and the docking seat (1), and is used to drive the operating rod (3) to move upward relative to the docking seat (1).
2. The culture dish culture medium dividing device according to claim 1, characterized in that: The inner wall of the docking seat (1) has a plurality of limit grooves (15) which are arranged at intervals along the circumference of the docking seat (1) and extend in the up-down direction, and the outer wall of the knife seat (2) has a plurality of bosses (22) which are correspondingly embedded in the plurality of limit grooves (15).
3. The culture medium dividing device for a culture dish according to claim 1, characterized in that: The elastic reset member (4) is a compression spring; the compression spring is sleeved on the operating rod (3), and its upper and lower ends are respectively connected to the protruding end of the operating rod (3) and the upper end surface of the docking seat (1); Wherein, when the knife seat (2) moves downward relative to the docking seat (1), the compression spring is in an elastically contracted state.
4. The culture dish culture medium dividing device according to claim 3, characterized in that: The upper end of the docking seat (1) has a groove (12) which is coaxially connected to the through hole (11) and is provided for the compression spring to be embedded.
5. The culture dish culture medium dividing device according to claim 1, characterized in that: The inner top surface of the docking seat (1) has a plurality of arc-shaped plates (13) arranged at intervals along its circumference and each used to pass through the opening and be inserted into the culture dish (6).
6. The culture dish culture medium dividing device according to claim 5, characterized in that: The inner peripheral wall of the docking seat (1) and the outer side surface of the arc-shaped plate (13) are both connected with an anti-slip film (5) for connecting with the culture dish (6).
7. The culture dish culture medium dividing device according to claim 1, characterized in that: The extended end of the operating rod (3) is provided with a handle (31) extending radially outwards.
8. The culture dish culture medium dividing device according to claim 1, characterized in that: The upper end surface of the docking seat (1) has an upward protrusion (14), and the through hole (11) is arranged to penetrate the protrusion (14).
9. The culture dish culture medium dividing device according to claim 8, characterized in that: The protrusion (14) adopts a conical structure.
10. The culture dish culture medium dividing device according to any one of claims 1 to 9, characterized in that: The plurality of blades (21) are arranged in a staggered manner in the horizontal direction to form a mesh structure.