Sample bottle with filter membrane bracket

Abstract

The utility model provides a sample bottle with a filter membrane support, which belongs to the technical field of sample bottles and comprises a sample bottle, a filter membrane support and a filter membrane support. The filter membrane bracket is positioned in the sample bottle; the sample bottle cap is arranged on the circumferential surface of the sample bottle in a sleeving manner; the gasket is positioned at the close end of the filter membrane bracket and the sample bottle cap; the O-shaped ring is arranged on the circumferential surface of the filter membrane bracket in a sleeving manner; the PTFE filter membrane is located on the lower side of the filter membrane support, the gasket made of the PTFE material is arranged between the sample bottle cap and the filter membrane support, the O-shaped ring is arranged on the circumferential surface of the filter membrane support, the sealing performance of the sample bottle is greatly enhanced, the chemical inertness and non-adhesion of the PTFE gasket ensure that the PTFE gasket is tightly attached to an opening of the sample bottle, and therefore the sealing performance of the sample bottle is greatly improved. External pollutants are effectively prevented from entering, sealing among internal components is further enhanced through accurate matching of the O-shaped ring and the groove of the filter membrane bracket, and the purity and integrity of the sample in the storage and transmission process are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of sample bottles, and particularly relates to a sample bottle with a filter membrane support. Background Art

[0002] A sample bottle with a filter membrane support is a special container for collecting, filtering, and storing samples, commonly used in fields such as environmental monitoring, water quality analysis, and microbial detection. The characteristic of this sample bottle is that a filter membrane support is designed inside the bottle to fix the filter membrane, so as to perform a filtering operation while collecting the sample, thereby separating the substances to be detected or removing impurities in the sample.

[0003] The patent document with the publication number "CN218546647U" records "A liquid-phase sample bottle with a filtering device, belonging to the technical field of sample injection bottles, including a bottle body. The top of the bottle body is provided with an integrally formed bottle mouth. The surface of the bottle mouth is provided with external threads around the circumference. The surface of the bottle mouth is threadedly connected with a bottle cap through the external threads. The inner cavity of the bottle cap is provided with a liquid inlet filtering mechanism. The liquid inlet filtering mechanism includes a filter membrane and a liquid inlet funnel. The surface of the bottle body is provided with a stabilizing mechanism. Filter membranes are fixedly assembled on the upper halves of both sides of the inner cavity of the bottle cap, and liquid inlet funnels are fixedly assembled on the lower halves of both sides of the inner cavity of the bottle cap. The bottom of the liquid inlet funnel penetrates through the bottle mouth and extends downward. A liquid inlet is opened at the top of the bottle cap, and a sealing plug is clamped at the top of the liquid inlet. Through the liquid inlet filtering mechanism, the risk of excessive particles in the sample entering the instrument and causing blockage can be reduced, and the sample is not easily spilled during sample transfer."

[0004] When the electronic nose tests different samples, the properties of the samples vary greatly. Suspended particles or aerosols in the samples will adsorb on the electronic nose sensors, thereby affecting the response sensitivity of the electronic nose, and cannot effectively filter out suspended particles and aerosols while not affecting the test of the electronic nose. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sample bottle with a filter membrane support, aiming to solve the problem that when the existing electronic nose tests different samples, the properties of the samples vary greatly, suspended particles or aerosols in the samples will adsorb on the electronic nose sensors, thereby affecting the response sensitivity of the electronic nose, and cannot effectively filter out suspended particles and aerosols while not affecting the test of the electronic nose.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sample bottle with a filter membrane support, comprising:

[0008] A sample bottle;

[0009] A filter membrane support, located inside the sample bottle;

[0010] Sample bottle cap, the sample bottle cap is sleeved on the circumferential surface of the sample bottle;

[0011] Gasket, the gasket is located at the proximal end close to the filter membrane support and the sample bottle cap;

[0012] O-ring, the O-ring is sleeved on the circumferential surface of the filter membrane support;

[0013] PTFE filter membrane, the PTFE filter membrane is located on the lower side of the filter membrane support;

[0014] Long air supplement needle and short sampling needle, the long air supplement needle and the short sampling needle are located on the upper side of the sample bottle and penetrate through the sample bottle cap.

[0015] As a preferred solution of the present utility model, the inner diameter of the sample bottle mouth is 33 mm, the outer diameter is 47 mm, and the height is 83 mm.

[0016] As a preferred solution of the present utility model, the gasket is made of PTFE, and the gasket matches the opening of the sample bottle.

[0017] As a preferred solution of the present utility model, the filter membrane support is of a conical design.

[0018] As a preferred solution of the present utility model, a groove is provided on the circumferential surface of the filter membrane support, and the groove matches the O-ring.

[0019] As a preferred solution of the present utility model, the sample bottle is made of polypropylene.

[0020] Compared with the prior art, the beneficial effects of the present utility model are:

[0021] 1. In this solution, by setting a PTFE gasket between the sample bottle cap and the filter membrane support and equipping an O-ring on the circumferential surface of the filter membrane support, the sealing performance of the sample bottle is greatly enhanced. The chemical inertness and non-adhesiveness of the PTFE gasket ensure a tight fit with the opening of the sample bottle, effectively preventing external contaminants from entering, and the precise matching of the O-ring with the groove of the filter membrane support further strengthens the sealing between internal components, ensuring the purity and integrity of the sample during storage and transmission.

[0022] 2. In this solution, the filter membrane support is of a conical design, combined with the use of a PTFE filter membrane, which improves the efficiency and accuracy of sample filtration. The conical structure helps to evenly distribute the liquid to be filtered, prevent local overload, ensure the balanced load on the filter membrane surface, and thus improve the filtration rate and consistency. At the same time, the configuration of the long air supplement needle and the short sampling needle allows gas exchange and sample injection during the filtration process without destroying the established sealed environment. Description of the Drawings

[0023] The accompanying drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the accompanying drawings:

[0024] Figure 1 is a cross-sectional view of the present utility model;

[0025] Figure 2 of the present utility model Figure 1 is a partial enlarged view at position A in;

[0026] Figure 3 is a side view of the present utility model.

[0027] In the figure: 1, sample bottle; 2, sample bottle cap; 3, gasket; 4, filter membrane support; 5, long air replenishing needle; 6, short sampling needle; 7, PTFE filter membrane; 8, O-ring. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0029] Embodiment 1

[0030] Please refer to Figures 1-3 , the present utility model provides the following technical solutions:

[0031] A sample bottle with a filter membrane support, comprising:

[0032] Sample bottle 1;

[0033] Filter membrane support 4, the filter membrane support 4 is located inside the sample bottle 1;

[0034] Sample bottle cap 2, the sample bottle cap 2 is sleeved on the circumferential surface of the sample bottle 1;

[0035] Gasket 3, the gasket 3 is located at the closer end of the filter membrane support 4 and the sample bottle cap 2;

[0036] O-ring 8, the O-ring 8 is sleeved on the circumferential surface of the filter membrane support 4;

[0037] PTFE filter membrane 7, the PTFE filter membrane 7 is located below the filter membrane support 4;

[0038] Long air replenishing needle 5 and short sampling needle 6, the long air replenishing needle 5 and the short sampling needle 6 are located above the sample bottle 1 and penetrate through the sample bottle cap 2.

[0039] In a specific embodiment of the present utility model, the sample bottle 1 is transparent, ensuring sample visualization while preventing the sample from being contaminated by the outside world. It is used to carry the sample. The sample bottle cap 2 is tightly sleeved on the opening surface of the sample bottle 1, providing the first physical barrier to prevent external impurities from entering. The filter membrane support 4 is located on the inner wall of the sample bottle 1, used to support the PTFE filter membrane 7, and at the same time ensure the stability during sample filtration. The gasket 3 enhances the sealing effect, reduces the leakage risk during gas exchange, and can also ensure that there is no gap between parts, preventing shaking. The O-ring 8 strengthens the sealing performance, ensuring the isolation of the internal and external environments of the sample bottle. The PTFE filter membrane 7 has high filtration efficiency and low adsorption characteristics, suitable for filtering various sample types. The long air supplement needle 5 and the short sampling needle 6 are used to extract the sample without damaging the sealed state, avoiding air pollution of the sample. When sampling, the short sampling needle 6 is located above the PTFE filter membrane 7, and the long air supplement needle 5 passes through the PTFE filter membrane 7, effectively solving the problems of the electronic nose inhaling suspended particles and aerosols, and being more centered in this way, without affecting the test use of the electronics.

[0040] Specifically, please refer to Figures 1-3 , the inner diameter of the mouth of the sample bottle 1 is 33 mm, the outer diameter is 47 mm, and the height is 83 mm.

[0041] In this embodiment: The inner diameter of 33 mm of the mouth determines the matching size of the bottle cap 2 and the outer diameter selection of the O-ring 8 and the filter membrane support 4. The outer diameter of 47 mm determines the storage space of the bottle on the rack. The height of 83 mm, the vertical distance from the bottom of the bottle to the top of the bottle mouth, affects the capacity of the sample bottle 1 and the comfort of holding.

[0042] Specifically, please refer to the figure. The material of the gasket 3 is PTFE, and the gasket 3 matches the opening of the sample bottle 1.

[0043] In this embodiment: The gasket 3 is made of polytetrafluoroethylene, having excellent chemical inertness, heat resistance, and low friction coefficient. The gasket 3 matches the opening of the sample bottle 1, and the diameter is such that it can completely cover the bottle mouth, and at the same time ensure that when the bottle cap 2 is tightened, the gasket can receive sufficient pressure to form a seal.

[0044] Specifically, please refer to the figure. The filter membrane support 4 is of a conical design.

[0045] In this embodiment: The conical design of the filter membrane support 4 helps to guide the liquid to be evenly distributed along the filter membrane, reducing the local overload of the sample on the filter membrane, thereby improving the filtration efficiency and consistency, and at the same time facilitating the sleeving of the PTFE filter membrane 7, and then facilitating the sleeving of the O-ring 8.

[0046] Specifically, please refer to the figure. The circumferential surface of the filter membrane support 4 is provided with grooves, and the grooves match the O-ring 8.

[0047] In this embodiment: When the O-ring 8 is embedded in the groove of the filter membrane support 4, it protects the filter membrane and the support from mechanical stress, extends their service life, and can also prevent movement, playing a stabilizing role.

[0048] Specifically, please refer to the figure. The material of the sample bottle 1 is polypropylene.

[0049] In this embodiment: Polypropylene has excellent chemical resistance and can withstand the erosion of a variety of chemicals, including strong acids, strong bases, and many organic solvents, reducing the risk of contamination caused by the reaction between the container material and the sample. Polypropylene has good heat resistance and can withstand relatively high temperatures. At the same time, it also maintains good toughness and strength at low temperatures.

[0050] The working principle and usage process of the present utility model: Place the PTFE filter membrane 7 on the lower side of the filter membrane support 4, ensure that the filter membrane is flat and without wrinkles, place the filter membrane support 4 into the sample bottle 1, ensure that the O-ring 8 is correctly installed in the groove on the circumferential surface of the filter membrane support 4 to provide additional sealing, place the gasket 3 above the filter membrane support 4 to ensure that it fits perfectly with the opening of the sample bottle 1 to increase the sealing performance, put the sample bottle cap 2 on the circumferential surface of the sample bottle 1, ensure that the gasket 3 is located between the filter membrane support 4 and the sample bottle cap 2, tighten the sample bottle cap 2 until the appropriate pressure is reached to ensure that all components are in close contact to form a leak-free seal, carefully inject the sample to be filtered into the sample bottle 1 through the short sampling needle 6, ensure that the sample is evenly distributed on the PTFE filter membrane 7. If necessary, gas can be introduced or discharged through the long air supplement needle 5 to adjust the air pressure in the bottle or replace the gas environment, such as performing sample treatment under inert gas protection. After filtration, keep the sample bottle cap 2 tightly closed to ensure the sealed state of the sample during storage and transportation, prevent the sample from being contaminated or leaked, and effectively solve the problem of the electronic nose inhaling suspended particles and aerosols. In this way, it is more centered and does not affect the test use of the electronic device.

[0051] Finally, it should be noted that: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sample bottle with a filter membrane support, characterized in that, Comprising: Sample bottle (1); Filter membrane support (4), which is located inside the sample bottle (1); Sample bottle cap (2), which is sleeved on the circumferential surface of the sample bottle (1); Gasket (3), which is located at the proximal end where the filter membrane support (4) and the sample bottle cap (2) are close to each other; O-ring (8), which is sleeved on the circumferential surface of the filter membrane support (4); PTFE filter membrane (7), which is located below the filter membrane support (4); Long air supplement needle (5) and short sampling needle (6), which are located above the sample bottle (1) and penetrate through the sample bottle cap (2).

2. The sample bottle with a filter membrane support according to claim 1, characterized in that: The inner diameter of the sample bottle (1) is 33 mm, the outer diameter is 47 mm, and the height is 83 mm.

3. The sample vial with a filter membrane support according to claim 2, characterized in that: The gasket (3) is made of PTFE and is matched with the opening of the sample bottle (1).

4. A sample vial with a filter membrane support according to claim 3, characterized in that: The filter membrane support (4) is designed in a conical shape.

5. A sample bottle with a filter membrane support according to claim 4, characterized in that: The circumferential surface of the filter membrane support (4) is provided with a groove, which is matched with the O-ring (8).

6. The sample vial with a filter membrane support according to claim 5, characterized in that: The sample bottle (1) is made of polypropylene.

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