Bacterial culture bottle cap

Abstract

The utility model discloses a bacterial culture bottle cap which is characterized in that the bacterial culture bottle cap comprises a cap body, a plurality of pairs of oppositely-arranged air holes are formed in the cap body around the center of the cap body, a breathable film is arranged in the cap body, a step-shaped through hole is formed in the center of the cap body, and a sealing device is installed on the cap body through the through hole. The utility model has the advantages that the sealing device is additionally arranged at the vent hole of the bottle mouth, the sealing device is pressed down when being used for culturing at ordinary times, the vent hole leaks out, the air flow inside and outside the culture bottle is kept smooth, and the bacteria are ventilated, and when the culture bottle is prepared to be moved, the sealing device is pulled up, and the vent hole is sealed by using the sealing piece, so that a sealed environment is temporarily formed in the culture bottle; the situation that in the moving process of the culture bottle, due to rapid change of the surrounding environment, airflow inside and outside the culture bottle is rapidly disturbed, normal development of bacteria cultured in the bottle is affected is prevented, and the survival rate of the bacteria in the culture bottle is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of culture bottles, in particular to a bacterial culture bottle cover. Background Art

[0002] When cultivating bacteria in biological experiments, it is usually necessary to place the bacteria in a culture bottle for cultivation. The culture solution containing bacteria consumes oxygen during storage and growth in the culture bottle. If the bottle cap is sealed and airtight, it is easy to cause bacteria to die of hypoxia or imbalance of air pressure inside and outside the bottle. Therefore, a breathable bottle cap is usually used to seal the culture bottle. However, the breathable bottle cap is usually ventilated and sealed with a breathable membrane and air holes. However, when in use, the air hole is always open and cannot be completely sealed. If the culture bottle needs to be transferred to a sterile operating environment, the surrounding environment of the culture bottle will change rapidly during the transfer process, and the air flow in the bottle will accelerate. The exposure of the air hole can easily cause bacteria to be contaminated in the culture bottle, resulting in the failure of the experiment due to bacterial contamination. Utility Model Content

[0003] The utility model aims to solve the above technical problems and provides a bacterial culture bottle cover which can completely seal the culture bottle temporarily during the process of transferring the culture bottle.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A bacterial culture bottle cap comprises a cap body, wherein the cap body has a plurality of pairs of oppositely arranged air holes around the center of the cap body, an air permeable membrane is arranged inside the cap body, a step-shaped through hole is arranged in the center of the cap body, and a sealing device is installed on the cap body through the through hole.

[0006] In order to seal the air holes on the bottle cap, a further preferred technical solution is that the sealing device includes a vertical rod extending into the through hole, a first sealing member is provided at the end of the vertical rod facing the outside of the bottle cap, the size of the first sealing member is matched with the size of the first step of the stepped through hole, a pull ring is provided on the upper surface of the first sealing member, and a cross rod with a length matched with the distance between two oppositely arranged air holes is connected to the end of the vertical rod facing the inside of the bottle cap, and second sealing members matched with the size of the air holes are respectively connected at both ends of the cross rod, the midpoints of the vertical rod and the cross rod are vertically connected by a third sealing member, and the cross-sectional area of ​​the third sealing member is matched with the cross-sectional area of ​​the second step of the stepped through hole.

[0007] In order to improve the sealing performance of the sealing device, a further preferred technical solution is that the outer surfaces of the first sealing member, the second sealing member and the third sealing member are all sleeved with sealing rubber rings.

[0008] In order to improve the ventilation efficiency inside and outside the bottle, a further preferred technical solution is that only one layer of air permeable film is provided in the cover body.

[0009] In order to facilitate equalization of air pressure and maintain the strength of the cover body, a further preferred technical solution is that the cover body is provided with three pairs of oppositely arranged air holes around the center of the cover body.

[0010] In order to facilitate opening the bottle cap, a further preferred technical solution is that the outer surface of the cap is provided with anti-slip edges.

[0011] A further preferred technical solution is that the inner surface of the cover is provided with an internal thread that matches the external thread of the mouth of the culture bottle.

[0012] In order to improve the sealing performance of the sealing cover itself, a further preferred technical solution is that the cover body is provided with a first sealing ring and a second sealing ring that can adapt to the mouth of the culture liquid bottle, and the air permeable membrane is fixedly connected to the second sealing ring.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model installs a sealing device at the air hole of the bottle mouth, presses it down during normal culture use, and the air hole leaks out to ventilate the bacteria; when the culture bottle is ready to be moved, pulls it up and uses the sealing member to seal the air hole, thereby temporarily forming a sealed environment in the culture bottle, preventing the rapid disturbance of the air flow inside and outside the culture bottle due to the rapid change of the surrounding environment during the movement of the culture bottle, preventing the bacteria outside from infecting the culture bottle and affecting the normal development of the bacteria cultured in the bottle, thereby improving the survival rate of the bacteria in the culture bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model when no sealing device is installed;

[0016] In the figure: 1. cover body; 2. air vent; 3. air permeable membrane; 4. through hole; 5. vertical rod; 6. first sealing member; 7. pull ring; 8. horizontal rod; 9. second sealing member; 10. third sealing member; 11. anti-slip edge; 12. internal thread; 13. first sealing ring; 14. second sealing ring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Embodiment 1

[0019] like Figure 1-2 As shown, a bacterial culture bottle cap includes a cover body 1, and the cover body 1 has a plurality of pairs of relatively arranged air holes 2 around the center of the cover body 1. Specifically, in this embodiment, in order to facilitate the balance of air pressure and maintain the strength of the cover body, the cover body 1 has three pairs of relatively arranged air holes 2 around the center of the cover body 1, and the spacing between each adjacent air holes is equal. The number of air holes 2 is increased and arranged in an adjacent ring shape. Compared with the previous single air hole design, the air permeability area can be increased while the air is evenly discharged and the strength of the cover body is maintained. A breathable membrane 3 is provided inside the cover body 1 to allow the bacteria to breathe. Specifically, in the present embodiment, in order to improve the ventilation efficiency inside and outside the bottle, only one layer of breathable membrane 3 is provided inside the cover body 1. In the past, breathable bottle caps were usually provided with multiple layers of breathable membranes. Since the multiple layers of breathable membranes are easy to slip off, the operation of the culture bottle becomes complicated, the air permeability is reduced, and the risk of the experiment is increased. A single-layer breathable membrane is used to ensure the ventilation efficiency inside and outside the bottle. In addition, in order to improve the sealing performance of the seal itself, a first sealing ring 13 that can be matched with the mouth of the culture liquid bottle and a second sealing ring 14 inside the first sealing ring 13 are provided inside the cover body 1. The breathable membrane 3 is fixedly connected to the second sealing ring 14, and is specifically directly bonded to the inside of the second sealing ring 14 by heat sealing to achieve a certain strength, so that the breathable membrane is not easy to slip off.

[0020] A stepped through hole 4 is provided in the center of the cover body 1. Specifically, the stepped through hole is divided into a first stepped through hole and a second stepped through hole from top to bottom. The cross-sectional area of ​​the first stepped through hole is larger than the cross-sectional area of ​​the second stepped through hole. The length of the first stepped through hole is shorter than that of the second stepped through hole. A sealing device is installed on the cover body 1 through the through hole 4. Specifically, in order to seal the air vent on the bottle cap, the sealing device includes a vertical rod 5 extending into the through hole 4. A first sealing member 6 is provided at one end of the vertical rod 5 facing the outside of the cover body 1. The size of the first sealing member 6 matches the size of the first step of the stepped through hole 4. The first sealing member 6 is provided to block the through hole 4 when the sealing device is not in use. A pull ring 7 is provided on the upper surface of the first sealing member 6. The setting of the pull ring 7 facilitates the user to pull up the entire sealing device to achieve sealing.

[0021] The end of the vertical rod 5 facing the inside of the bottle cap is connected to a cross rod 8 whose length matches the distance between two oppositely arranged air holes, and the two ends of the cross rod 8 are respectively connected to second sealing members 9 that match the size of the air holes. The midpoints of the vertical rod 5 and the cross rod 8 are vertically connected by a third sealing member 10, and the cross-sectional area of ​​the third sealing member 10 matches the cross-sectional area of ​​the second step of the stepped through hole. Specifically, three cross bars 8 are provided corresponding to the total of 6 air holes. The function of the second sealing member 9 is to seal the air hole 2 on the surface of the cover body 1 when the pull ring is lifted. The three cross bars share a third sealing member 10. The function of the third sealing member 10 is to enable the sealing device to seal the bottom end of the through hole 5 when sealing the bottle cap to prevent bacteria from entering through the through hole 5. In order to improve the sealing performance of the sealing device, a further preferred technical solution is that the outer surfaces of the first sealing member 6, the second sealing member 9 and the third sealing member 10 are all provided with sealing rubber rings. The sealing rubber rings can improve the sealing performance of the sealing member and can prevent the device from getting stuck in the through hole and the air hole when lifted, thereby preventing the sealing device from falling off.

[0022] In order to facilitate opening the bottle cap, a further preferred technical solution is that the outer surface of the cover body 1 is provided with anti-slip edges 11. A further preferred technical solution is that the inner surface of the cover body 1 is provided with internal threads 12 that are compatible with the external threads of the culture bottle mouth.

[0023] The utility model installs a sealing device at the air hole of the bottle mouth, which is pressed down during normal culture use to allow the air hole to leak out and ventilate the bacteria. When the culture bottle is ready to be moved, it is pulled up and the air hole is sealed with a sealing member, so that a sealed environment is temporarily formed in the culture bottle, and the rapid disturbance of the air flow inside and outside the culture bottle due to the rapid change of the surrounding environment during the movement of the culture bottle is prevented, and the bacteria outside are prevented from infecting the culture bottle and affecting the normal development of the bacteria cultured in the bottle, thereby improving the survival rate of the bacteria in the culture bottle.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bacterial culture bottle cap, characterized in that: The invention comprises a cover body, wherein a plurality of pairs of oppositely arranged air holes are provided around the center of the cover body, an air-permeable membrane is provided inside the cover body, a step-shaped through hole is provided in the center of the cover body, and a sealing device is installed on the cover body through the through hole.

2. A bacterial culture bottle cap as claimed in claim 1, characterized in that: The sealing device includes a vertical rod extending into the through hole, a first sealing member is provided at one end of the vertical rod facing the outside of the bottle cap, the size of the first sealing member is matched with the size of the first step of the stepped through hole, a pull ring is provided on the upper surface of the first sealing member, a cross rod with a length matched with the distance between two oppositely arranged air holes is connected to the end of the vertical rod facing the inside of the bottle cap, and second sealing members matched with the size of the air holes are respectively connected at both ends of the cross rod, the midpoint of the vertical rod and the cross rod are vertically connected by a third sealing member, and the cross-sectional area of ​​the third sealing member is matched with the cross-sectional area of ​​the second step of the stepped through hole.

3. A bacterial culture bottle cap as claimed in claim 2, characterized in that: The outer surfaces of the first sealing member, the second sealing member and the third sealing member are all sleeved with sealing rubber rings.

4. A bacterial culture bottle cap as claimed in claim 1, characterized in that: The cover body is provided with only one layer of air permeable membrane.

5. A bacterial culture bottle cap as claimed in claim 1, characterized in that: The cover body is provided with three pairs of oppositely arranged air holes around the center of the cover body.

6. A bacterial culture bottle cap as claimed in claim 1, characterized in that: The outer surface of the cover body is provided with anti-slip edges.

7. A bacterial culture bottle cap as claimed in claim 1, characterized in that: The inner surface of the cover is provided with an internal thread matched with the external thread of the mouth of the culture bottle.

8. A bacterial culture bottle cap as claimed in claim 1, characterized in that: The cover body is provided with a first sealing ring and a second sealing ring which can be matched with the opening of the culture liquid bottle, and the air-permeable membrane is fixedly connected to the second sealing ring.

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