Culture dish with shading structure
By designing a light-shielding cover and a rotating light-shielding mechanism on the petri dish, the problem of light entering and affecting the culture is solved, ensuring good light-shielding effect when sampling and adding culture medium, and meeting the growth needs of light-sensitive microorganisms and cells.
Patent Information
- Application Number
- CN202520312832.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-26
AI Technical Summary
In existing petri dishes, light can easily enter during sampling and addition of culture medium, affecting the growth environment of the culture.
A culture dish with a light-shielding structure was designed, equipped with a light-shielding cover and a rotating light-shielding mechanism. The sampling port mechanism, connected by a thread, ensures that light is prevented from entering during sampling and adding culture medium.
It achieves good light-blocking effect during sampling and culture medium addition, preventing light from entering the culture dish and meeting the growth needs of light-sensitive microorganisms and cells.
Smart Images

Figure CN223866682U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the sampling field of light -proof culture dish, concretely is a culture dish with light -proof structure. BACKGROUND
[0002] Light -proof culture dish is usually made of light -proof material, such as black plastic, glass coated with light -proof coating, etc., and the light -proof material blocks external light from entering, provides light -free or weak light environment for culture, and meets the growth needs of light -averse microorganism, cells and the like.
[0003] In the prior art, during the culture process, sampling inspection and adding culture solution are needed to ensure the normal growth of culture, and in the prior art, light inevitably enters the culture dish when the above operation is carried out, thereby affecting the culture. UTILITY MODEL CONTENTS
[0004] The utility model discloses a culture dish with light -proof structure, which blocks external light from entering through light -proof material, provides light -free or weak light environment for culture, and meets the growth needs of light -averse microorganism, cells and the like.
[0005] To achieve the above object, the utility model provides the following technical scheme: a culture dish with light -proof structure, including light -proof culture dish, the top opening of light -proof culture dish is sleeved with light -proof cover, the top of light -proof cover is provided with sampling port mechanism, the upper of light -proof cover is provided with the rotating light -proof mechanism that penetrates to the bottom end of light -proof cover, the top plate of light -proof cover is provided with the sampling port of sampling port mechanism alignment in the up and down direction, and the rotating light -proof mechanism is located the outside of sampling mechanism and below the sampling port.
[0006] As a further scheme of the utility model: the sampling port mechanism includes the connecting sleeve that is integrally formed on the top of the light -proof cover, the connecting sleeve is aligned with the sampling port in the up and down direction, and the inner wall of the connecting sleeve is provided with internal thread.
[0007] As a further scheme of the utility model: the sampling port mechanism further includes a sampling tube, the bottom end of the sampling tube is integrally formed with a connecting head, and the outer wall of the connecting head is formed with external thread engaged with the internal thread.
[0008] As a further scheme of the utility model: the rotating light -proof mechanism includes a light -shielding plate located at the bottom of the top plate of the light -proof cover, the top of the light -shielding plate is integrally formed with a rotating block protruding above the top plate of the light -proof cover on one side of the connecting sleeve, and the outer periphery of the rotating block is integrally formed with a stress plate protruding outward.
[0009] As a further scheme of the utility model: the top end of the light shielding plate is provided with a rubber sealing element at the position of contact with the bottom of the top of the light shielding cover.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] 1. By setting the sampling port mechanism and the rotating light shielding mechanism, sunlight can be avoided from entering the light shielding culture dish when sampling and injecting culture. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a structural schematic view of the utility model;
[0013] Figure 2 is an installation schematic view of the light shielding plate of the utility model;
[0014] Figure 3 is an internal structure schematic view of the utility model.
[0015] In the figure: 1, light shielding culture dish; 2, light shielding cover; 3, connecting sleeve; 4, rotating block; 5, stress plate; 6, sampling tube; 7, connecting head; 8, light shielding plate; 9, sampling port. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0017] Please refer to Figures 1-3 In the embodiments of the utility model, a culture dish with a light shielding structure comprises a light shielding culture dish 1, a light shielding cover 2 is sleeved on the top opening of the light shielding culture dish 1, a sampling port mechanism is arranged on the top of the light shielding cover 2, a rotating light shielding mechanism is arranged above the light shielding cover 2 and penetrates to the bottom end of the light shielding cover 2, a sampling port 9 of the sampling port mechanism is aligned in the up-down direction on the top plate of the light shielding cover 2, and the rotating light shielding mechanism is located outside the sampling mechanism and below the sampling port 9.
[0018] In the embodiment, when sampling in normal state, first, connect the two parts of the sampling port mechanism, after connection, insert the sampling rod into the sampling port mechanism until the sampling rod blocks the light inlet position of the sampling port mechanism, then open the rotating light shielding mechanism, after the rotating light shielding mechanism is opened, continue to insert the sampling rod downward until the sampling rod contacts the culture (microorganism, cell, etc.) in the light shielding culture dish 1, at this time, the light shielding culture contacts the bottom end of the sampling rod, and the culture sampling is performed, or when adding culture solution into the light shielding culture dish 1, insert the injection needle containing the culture dish into the sampling port mechanism, then rotate to open the rotating light shielding mechanism, and push the injection needle to inject the culture solution in the injection needle into the light shielding culture dish 1, after the above sampling or culture solution injection is completed, when the sampling rod or injection needle is not completely extracted, reverse push the rotating light shielding mechanism to close the sampling port 9.
[0019] Please refer to Figure 1 and Figure 3 , the sampling port mechanism includes a connecting sleeve 3 integrally formed on the top of the light shielding cover 2, the connecting sleeve 3 is aligned with the sampling port 9 in the up-down direction, the inner wall of the connecting sleeve 3 is provided with internal threads, and the sampling port mechanism further includes a sampling tube 6, the bottom end of the sampling tube 6 is integrally formed with a connecting head 7, and the outer wall of the connecting head 7 is formed with external threads engaged with the internal threads.
[0020] In the embodiment, when the two parts of the sampling port are connected, at this time, the rotating light shielding mechanism is in the closed state, then the connecting head 7 at the bottom end of the sampling tube 6 is butted with the connecting sleeve 3, after butt joint, rotate the sampling tube 6, at this time, the external threads are engaged with the internal threads, until the two are completely connected, then insert the sampling rod or injection needle into the sampling tube 6, the diameter of the sampling rod should match the inner diameter of the sampling tube 6, which can effectively shield light, or the sleeve of the injection needle blocks the top opening of the sampling tube 6, so that when sampling or injecting culture solution, direct light can be avoided from entering the light shielding culture dish 1, after the sampling rod and the injection needle are inserted, at this time, the rotating light shielding mechanism can be opened.
[0021] Please refer to Figure 1 , Figure 2 and Figure 3 , the rotating light shielding mechanism includes a light shielding plate 8 located at the bottom of the top plate of the light shielding cover 2, the top of the light shielding plate 8 is integrally formed with a rotating block 4 protruding above the top plate of the light shielding cover 2 on one side of the connecting sleeve 3, and the outer periphery of the rotating block 4 is integrally formed with a stress plate 5 protruding outward.
[0022] In the embodiment, when the rotating light shielding mechanism is opened, the force receiving plate 5 is manually pushed to rotate the rotating block 4, and the rotating block 4 drives the light shielding plate 8 to rotate synchronously. During the rotation of the light shielding plate 8, when the light shielding plate 8 is misaligned with the sampling port 9, the culture solution can be injected or the sampling rod can be used for sampling. After sampling or injecting the culture solution, the sampling rod (the needle of the syringe is shorter than the length of the sampling tube 6, so it is not necessary to pull up the sampling rod, and the light shielding plate 8 can be directly rotated to be closed) is pulled up, and when the sampling rod is moved to the upper side of the light shielding plate 8, the light shielding plate 8 is rotated to be closed, and the sampling or injecting the culture solution is completed.
[0023] Please refer to Figure 2 The top end of the light shielding plate 8 is in contact with the bottom of the top of the light shielding cover 2, and a rubber sealing element is arranged at the contact position.
[0024] In the embodiment, the design can ensure that the light does not enter the light shielding culture dish 1 when the light shielding plate 8 is in the closed state.
[0025] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.
Claims
1. A petri dish with a light-shielding structure, comprising a light-shielding petri dish (1), wherein a light-shielding cover (2) is fitted over the top opening of the light-shielding petri dish (1), characterized in that, The top of the light-shielding cover (2) is provided with a sampling port mechanism. A rotating light-shielding mechanism that extends through to the bottom of the light-shielding cover (2) is provided above the light-shielding cover (2). The top plate of the light-shielding cover (2) is provided with a sampling port (9) that is aligned in the vertical direction. The rotating light-shielding mechanism is located outside the sampling mechanism and below the sampling port (9).
2. The culture dish with a light-shielding structure according to claim 1, characterized in that, The sampling port mechanism includes a connecting sleeve (3) integrally formed on the top of the light shield (2). The connecting sleeve (3) and the sampling port (9) are aligned one-to-one in the vertical direction. The inner wall of the connecting sleeve (3) is provided with an internal thread.
3. A culture dish with a light-shielding structure according to claim 2, characterized in that, The sampling port mechanism also includes a sampling tube (6), the bottom end of which is integrally formed with a connector (7), and the outer wall of the connector (7) is formed with an external thread that meshes with the internal thread.
4. A culture dish with a light-shielding structure according to claim 3, characterized in that, The rotating light-shielding mechanism includes a light-shielding plate (8) located at the bottom of the top plate of the light-shielding cover (2). The top of the light-shielding plate (8) is integrally formed on one side of the connecting sleeve (3) and a rotating block (4) protruding above the top plate of the light-shielding cover (2). The outer circumference of the rotating block (4) is integrally formed with an outwardly protruding force plate (5).
5. A culture dish with a light-shielding structure according to claim 4, characterized in that, A rubber seal is provided at the contact position between the top of the light-shielding plate (8) and the top and bottom of the light-shielding cover (2).