Anti-explosion material supplementing bottle cap

Abstract

The utility model provides an anti-explosion material supplementing bottle cap which comprises an outer cap, an inner cap is arranged at the hollowed-out position of the top of the outer cap, two centrosymmetric holes are formed in the inner cap, the two holes are fixedly connected with a T-shaped tee joint and a hollow pipeline respectively, the horizontal side of the T-shaped tee joint is sequentially connected with a constant value opening valve, a first air filter and a whistle generator, and the horizontal side of the T-shaped tee joint is connected with a second air filter. And the vertical end of the T-shaped tee joint is connected with a second air filter. On the basis of a common two-way bottle cap, the constant-value opening valve is additionally arranged at the gas inlet end through the three-way valve, redundant gas is discharged from the constant-value opening valve when the pressure in the bottle is too large, damage to the material supplementing bottle caused by the too large pressure can be avoided, and a culture medium can be injected into a target container at a high speed.

Description

Technical Field

[0001] The utility model provides an explosion-proof feeding bottle cover, belonging to the technical field of microbial fermentation equipment. Background Art

[0002] During the process of microbial fermentation, the culture medium needs to be injected into the fermentation tank or disposable reaction bag. In small and medium-sized fermentations below 50L, two-way bottle caps and feeding bottles are often used as containers to sterilize the culture medium, and then the sterilized culture medium is transferred to a sterile fermentation tank or disposable reaction bag. There are three main methods of culture medium transfer:

[0003] (1) Directly connect the external pressure to the air inlet of the two-way bottle cap, and use the pressure inside the bottle to press the culture medium into the fermentation tank or disposable reaction bag.

[0004] The disadvantage of this method is that it is impossible to control the pressure inside the bottle. Once the pressure is too high and exceeds the pressure limit of the feeding bottle, accidents such as bottle explosion may occur. In addition, in order to meet the sterility requirements, the air filter must be connected to the air inlet end of the double-way bottle cap with a silicone tube. This connection method is easy to fall off during the sterilization process.

[0005] (2) Using the siphon principle, place the feed bottle at a high place. When the feed bottle is higher than the end of the pipe and the pipe is filled with liquid, the culture medium will slowly flow into the fermentation tank or disposable reaction bag.

[0006] The disadvantage of this method is that the liquid flow rate is too slow, and the feeding bottle needs to be lifted to a high place, which still has a certain risk of falling.

[0007] (3) Use a peristaltic pump to pump the culture medium into the fermenter or disposable reaction bag. The advantages of this method are that it is safe and does not require supervision.

[0008] The disadvantage is that the pumping speed is too slow, and when the pipeline is blocked, the peristaltic pump will continue to increase the pressure in the pipeline, eventually causing the pipeline joints to rupture and the sterile seal to fail. Utility Model Content

[0009] In order to solve the problems raised by the above-mentioned background technology methods, the purpose of the utility model is to provide a feeding bottle cap that can control the pressure in the feeding bottle and provide a sterile environment to complete the work of injecting culture medium from the feeding bottle into a fermentation tank or a disposable reaction bag.

[0010] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0011] An explosion-proof feeding bottle cap comprises an outer cover, an inner cover is arranged at the hollowed-out top of the outer cover, the inner cover has two centrally symmetrical holes, the two holes are respectively fixedly connected to a T-shaped tee and a hollow pipe, a fixed value opening valve, a first air filter, and a whistle generator are sequentially connected to the horizontal side of the T-shaped tee, and a second air filter is connected to the vertical end of the T-shaped tee.

[0012] The fixed value opening valve is connected to the first air filter through a first female Luer connector; the T-type three-way valve is connected to the second air filter through a second male Luer connector.

[0013] A silicone gasket is lined under the inner cover, and the silicone gasket presses the inner cover onto the feeding bottle through the outer cover to seal it.

[0014] As a preferred embodiment of the present invention, the fixed value opening valve is a spring-loaded one-way valve, which opens when the internal pressure is higher than a set value, thereby releasing the pressure.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. Based on the common two-way bottle cap, the utility model adds a fixed opening valve at the air inlet end through the three-way valve, so that the excess gas is discharged from the fixed opening valve when the pressure in the bottle is too high, which can avoid the damage of the feeding bottle caused by excessive pressure and enable the culture medium to be injected into the target container at a faster speed.

[0017] 2. The utility model ensures the sterility of the inside of the feeding bottle by connecting the air filter to the fixed value opening valve and the air filter to the T-type three-way.

[0018] 3. In the utility model, a whistle generator is connected to the air filter connected to the fixed value opening valve, so that a whistle is emitted to remind the operator when gas leaks.

[0019] 4. The air filters used in the present invention are connected to other components by male Luer connectors, which can ensure convenient and quick replacement of the air filters and provide a more stable connection than silicone hose connections. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is explained in conjunction with the accompanying drawings.

[0023] like Figure 1 and Figure 2The explosion-proof feeding bottle cap comprises an outer cover 10, an inner cover 1 is provided at the hollowed-out top of the outer cover 10, the inner cover 1 has two centrally symmetrical holes, the two holes are respectively fixedly connected to a T-shaped tee 2 and a hollow pipe 3, the horizontal side of the T-shaped tee 2 is sequentially connected to a fixed value opening valve 4, a first air filter 5, and a whistle generator 6, and the vertical end of the T-shaped tee 2 is connected to a second air filter 7. The fixed value opening valve is a spring-loaded one-way valve, which opens when the internal pressure is higher than the set value. The whistle generator will make a sound due to the vibration generated by the mechanical structure when air flows through it.

[0024] The fixed value opening valve 4 is connected to the first air filter 5 through the first female Luer connector 8; the T-type tee 2 is connected to the second air filter 7 through the second male Luer connector 9. The pore size of the air filter selected in the utility model is 0.2 microns to meet the sterility requirements; one end of the air filter is provided with a male Luer connector to facilitate the replacement of the air filter after the design life is exhausted.

[0025] A silicone gasket 11 is lined below the inner cover 1, and the silicone gasket 11 presses the inner cover 1 onto the feeding bottle through the outer cover 10 to seal it.

[0026] The utility model can maintain a stable pressure in the feeding bottle, so that the culture medium in the feeding bottle can be quickly and safely pressed into the fermentation tank. The utility model can provide a stable aseptic environment through two air filters, and the integration is higher than that of the traditional method.

Claims

1. An explosion-proof feeding bottle cap, comprising an outer cap (10), wherein an inner cap (1) is provided at a hollowed-out portion at the top of the outer cap (10), characterized in that: The inner cover (1) has two centrally symmetrical holes, the two holes respectively fixedly connecting a T-shaped tee (2) and a hollow pipe (3), the horizontal side of the T-shaped tee (2) is sequentially connected to a fixed value opening valve (4), a first air filter (5), and a whistle generator (6), and the vertical end of the T-shaped tee (2) is connected to a second air filter (7).

2. The explosion-proof feeding bottle cap according to claim 1, characterized in that: The fixed value opening valve (4) is connected to the first air filter (5) via a first female Luer connector (8); and the T-shaped three-way valve (2) is connected to the second air filter (7) via a second male Luer connector (9).

3. The explosion-proof feeding bottle cap according to claim 1, characterized in that: A silicone gasket (11) is provided below the inner cover (1), and the silicone gasket (11) presses the inner cover (1) onto the feeding bottle through the outer cover (10) to seal it.

4. The explosion-proof feeding bottle cap according to claim 1, characterized in that: The fixed value opening valve (4) is a spring type one-way valve.

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