A multifunctional portable bacteria filter
By adding a finger ring, internal and external double-threaded connection, and bacterial detection sensor to the bacterial filter, the problems of easy slippage, poor sealing, and difficulty in monitoring the filtration effect are solved, achieving stable grip, strong sealing, and real-time detection, thus improving safety and media flow rate.
Patent Information
- Application Number
- CN202522528962.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-28
AI Technical Summary
Existing bacterial filters are prone to slipping out of hand during use, have insufficient sealing strength, are difficult to monitor filtration efficiency in real time, pose a risk of bacterial contamination, and the internal channels are compressed when the pipes are bent, affecting the flow rate of the medium.
The design incorporates a ring for enhanced grip, utilizes a double-threaded connection to improve sealing, and adds a bacterial detection sensor on the outside of the lower cover for real-time monitoring. Corrugated folded tubes are used to prevent pipe bending and compression.
It improves the device's gripping stability and sealing strength, enables real-time monitoring and feedback of filtration performance, enhances safety, and maintains stable media flow rate.
Smart Images

Figure CN224942596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bacterial filter technology, and in particular to a multifunctional portable bacterial filter. Background Technology
[0002] A bacterial filter is a purification device that prevents microorganisms from passing through using physical or chemical methods. Its core structure includes a filter medium and a plastically molded bottom and top cover. In the medical field, this device can block the spread of pathogens through pulmonary function instruments and is used to prepare sterile drug solutions and purify the surgical environment; in biological experiments, it is used in cell culture, PCR, and other scenarios to ensure that samples are uncontaminated; and in industrial settings, it is used for the safe handling of food and beverages. Common bacterial filters are mostly gyroscope-shaped, relatively small and portable, but difficult to grip and prone to slipping during installation. Their top and bottom covers are often connected by a single-sided threaded screw, resulting in a weak seal and poor sealing performance. Furthermore, the lack of real-time monitoring of filtration quality makes it difficult to control the filtration effect, posing a risk of bacterial contamination and compromising safety. Finally, while they have two interconnecting interfaces, often coaxial, the input and output directions can vary significantly in actual use. This can lead to bending and compression of the pipe at one end, affecting the flow rate of the medium. Utility Model Content
[0003] The purpose of this invention is to provide a multifunctional portable bacterial filter that can assist in gripping and rotating to prevent slippage during installation. Secondly, it improves the sealing strength after the upper and lower covers are connected to prevent the entry of external bacteria. In addition, it can perform real-time bacterial detection and sensor feedback on the filtered medium to accurately control the filtration effect, enhance risk management capabilities, and improve safety. Finally, it avoids compressing the internal channel after the connecting pipe is bent, thus maintaining a stable medium flow rate.
[0004] To achieve the above objectives, a multifunctional portable bacterial filter is provided, comprising: an upper cover, a filter element installed on the inner bottom of the upper cover, a lower cover located directly below the upper cover, an input interface and an output interface respectively opened at the center of the opposite side of the upper cover and the lower cover, a shaped steel ring fixedly connected to the inner edge of each of the input and output interfaces, a corrugated folded tube and a straight tube respectively fixedly connected to the opposite side of the shaped steel ring, a first external thread provided on the outer side of the top of the lower cover, a second external thread provided on the inner side of the top of the lower cover, a double-threaded groove provided at the bottom of the upper cover, the top of the lower cover correspondingly embedded in the double-threaded groove and threadedly connected to the upper cover, a guide tube fixedly connected to the lower right side of the lower cover, a bacterial detection sensor threadedly connected to the outer side of the bottom end of the guide tube, and a finger ring mounted on the upper left side of the upper cover, the finger ring being connected to the upper cover... The cover has several connecting rods arranged in a fan shape on one side. First, a finger ring is added to the outside of the cover to assist in gripping and rotating, preventing slippage during installation. Second, the upper and lower covers use an embedded mating connection with internal and external double threads to increase the mating surface and improve the sealing strength after connection, preventing the entry of external bacteria. In addition, an extra guide tube with a bacterial detection sensor is added to the outside of the lower cover to perform real-time bacterial detection and feedback on the filtered media, accurately controlling the filtration effect, enhancing risk management capabilities, and improving safety. Finally, a corrugated folded tube is set at the interface of the upper cover to bend and deform freely without compressing its internal passage. After maintaining a coaxial connection at the output interface of the lower cover, the input interface of the upper cover can be installed with mating pipes of different orientations through the corrugated folded tube, avoiding compression of the internal channel after bending and maintaining a stable media flow rate.
[0005] According to the aforementioned multifunctional portable bacterial filter, the finger ring is elliptical in shape, with its major axis parallel to the inclined side of the top cover. It conforms to the cross-sectional shape of a finger, facilitating finger insertion for control of the top cover.
[0006] According to the aforementioned multifunctional portable bacterial filter, a sealing gasket is press-fitted into the inner edge of the upper end of the bacterial detection sensor, and the inner side of the sealing gasket is fixed to the conductive tube. After installation, a compression seal is applied to prevent external bacteria from entering and affecting detection accuracy.
[0007] According to the aforementioned multifunctional portable bacterial filter, the bacterial detection sensor employs electrochemical biosensor technology. This enhances the tightness and stability of its threaded connection.
[0008] According to the aforementioned multifunctional portable bacterial filter, both the first and second external threads are imperial threads and their material is polyethylene. An electrochemical biosensor is a biosensor based on electrochemical principles that achieves quantitative or qualitative analysis of biomolecules by measuring electrochemical signals in a biological system, enabling highly sensitive and rapid bacterial detection.
[0009] According to the aforementioned multifunctional portable bacterial filter, an anti-slip sleeve is nested and fixed to the outer side of the straight tube, and the top end of the anti-slip sleeve is fixed to the lower cover. This facilitates stable control of the lower cover aligning upwards with the upper cover and tightening the installation.
[0010] According to the aforementioned multifunctional portable bacterial filter, a rubber strip is fixedly wrapped around the inner edge of the ring, and the rubber strip makes flexible contact with the finger. This avoids marks and scratches, protecting the finger.
[0011] The above-mentioned solution has the following beneficial effects: In this invention, firstly, a finger ring is added to the outside of the upper cover to assist in gripping and rotating, preventing slippage during installation. Secondly, the upper and lower covers are connected using an embedded mating method with internal and external double threads to increase the mating surface and improve the sealing strength after connection, preventing the entry of external bacteria. In addition, a guide tube is added to the outside of the lower cover with a bacterial detection sensor to perform real-time bacterial detection and feedback on the filtered medium, accurately controlling the filtration effect, enhancing risk management capabilities, and improving safety. Finally, a corrugated folded tube is set at the interface of the upper cover to allow free bending and deformation without compressing its internal passage. Thus, after maintaining a coaxial connection at the output interface of the lower cover, the input interface of the upper cover can be installed with mating pipes of different orientations through the corrugated folded tube, avoiding compression of the internal channel after bending and maintaining a stable medium flow rate.
[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the overall assembly of a multifunctional portable bacterial filter according to the present invention; Figure 2 This is a schematic diagram showing the overall disassembled structure of a multifunctional portable bacterial filter according to this utility model; Figure 3 This is a cross-sectional view of the top cover of a multifunctional portable bacterial filter according to this utility model; Figure 4This is a schematic diagram of the connection structure of the lower cover of a multifunctional portable bacterial filter according to this utility model.
[0014] Legend: 1. Top cover; 2. Filter element; 3. Bottom cover; 4. Shaping steel ring; 5. Corrugated folded tube; 6. Straight tube; 7. First external thread; 8. Second external thread; 9. Double threaded groove; 10. Conductor tube; 11. Bacterial detection sensor; 12. Sealing gasket; 13. Anti-slip sleeve; 14. Finger ring; 15. Connecting rod. Detailed Implementation
[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0016] Reference Figure 1 and Figure 2 This utility model provides a multifunctional portable bacterial filter, including: an upper cover 1, a filter core 2 installed on the inner bottom of the upper cover 1, a lower cover 3 located directly below the upper cover 1, an input interface and an output interface respectively opened at the center of the opposite side of the upper cover 1 and the lower cover 3, a shaping steel ring 4 fixedly connected to the inner edge of the input interface and the output interface, a corrugated folded tube 5 and a straight tube 6 respectively fixedly connected to the opposite side of the shaping steel ring 4, an anti-slip sleeve 13 nested and fixed to the outer side of the straight tube 6, the top of the anti-slip sleeve 13 fixed to the lower cover 3, and the corrugated folded tube 5 is used to cooperate with the docking pipes of different orientations for installation, avoiding compression of the internal channel after bending and maintaining a stable medium flow rate.
[0017] Reference Figure 3 and Figure 4 As shown, the top outer side of the lower cover 3 is provided with a first external thread 7, and the top inner side of the lower cover 3 is provided with a second external thread 8. Both the first external thread 7 and the second external thread 8 are imperial threads and are made of polyethylene. The bottom end of the upper cover 1 is provided with a double threaded groove 9. The top of the lower cover 3 is correspondingly embedded in the double threaded groove 9 and is threadedly connected to the upper cover 1 to improve the sealing strength after connection and prevent the entry of external bacteria.
[0018] A conduit 10 is fixedly connected to the lower right side of the lower cover 3. A bacterial detection sensor 11 is threadedly connected to the outer side of the bottom end of the conduit 10. The bacterial detection sensor 11 adopts electrochemical biosensor technology. A sealing gasket 12 is squeezed and fitted into the inner edge of the upper end of the bacterial detection sensor 11. The inner side of the sealing gasket 12 is fixed to the conduit 10. The sensor can detect bacteria in the filtered medium in real time and provide feedback, accurately control the filtration effect, and enhance risk management capabilities.
[0019] A finger ring 14 is mounted on the upper left side of the top cover 1. The finger ring 14 is fan-shaped and fixed with several connecting rods 15 on the side adjacent to the top cover 1. The finger ring 14 is elliptical and its major axis is relatively parallel to the oblique side of the top cover 1. Rubber strips are fixed around the inner edge of the finger ring 14. The rubber strips are in flexible contact with the fingers to assist in gripping and rotating, and to prevent the installation from slipping out of the hand.
[0020] Working Principle: In this invention, firstly, a finger ring 14 is added to the outside of the upper cover 1 to assist in gripping and rotating, preventing the installation from slipping out of the hand. Secondly, the upper and lower covers 3 adopt an embedded docking method with internal and external double threaded connection to increase the docking surface between the two, improve the sealing strength after connection, and prevent the entry of external bacteria. In addition, an extra guide tube 10 is added to the outside of the lower cover 3 with a bacterial detection sensor 11 to perform real-time bacterial detection and sensing feedback on the filtered medium, accurately control the filtration effect, enhance risk management capabilities, and improve safety. Finally, a corrugated folded tube 5 is set at the interface of the upper cover 1 to bend and deform freely without compressing its internal passage. Thus, after the output interface of the lower cover 3 is kept coaxially connected, the input interface of the upper cover 1 can be installed with docking pipes of different orientations through the corrugated folded tube 5, avoiding compression of the internal channel after bending and maintaining a stable medium flow rate.
[0021] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Furthermore, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A multi-functional portable bacterial filter, characterized by, include: The upper cover (1) has a filter core (2) installed on its inner bottom side. A lower cover (3) is located directly below the upper cover (1). An input interface and an output interface are respectively opened at the center of the opposite side of the upper cover (1) and the lower cover (3). A shaped steel ring (4) is fixedly connected to the inner edge of both the input interface and the output interface. A corrugated folded tube (5) and a straight tube (6) are fixedly connected to the opposite side of the shaped steel ring (4). A first external thread (7) is provided on the outer side of the top of the lower cover (3). The inner side of the top of the lower cover (3) is... The side is provided with a second external thread (8), and the bottom end of the upper cover (1) is provided with a double threaded groove (9). The top end of the lower cover (3) is correspondingly embedded in the double threaded groove (9) and threadedly connected to the upper cover (1). The lower right side of the lower cover (3) is connected to a guide tube (10), and the bottom outer side of the guide tube (10) is threadedly connected to a bacterial detection sensor (11). The upper left side of the upper cover (1) is provided with a finger ring (14), and the finger ring (14) is fan-shaped and fixed with several connecting rods (15) on the side adjacent to the upper cover (1).
2. The multifunctional portable bacterial filter according to claim 1, characterized in that, The ring (14) is elliptical in shape and its major axis is parallel to the oblique side of the cover (1).
3. The multifunctional portable bacterial filter according to claim 1, characterized in that, A sealing gasket (12) is pressed and fitted into the inner edge of the upper end of the bacterial detection sensor (11), and the inner side of the sealing gasket (12) is fixed to the conductive tube (10).
4. A multifunctional portable bacterial filter according to claim 1, characterized in that, The first external thread (7) and the second external thread (8) are both British standard threads and are made of polyethylene.
5. A multifunctional portable bacterial filter according to claim 1, characterized in that, The bacterial detection sensor (11) employs electrochemical biosensor technology.
6. A multifunctional portable bacterial filter according to claim 1, characterized in that, An anti-slip sleeve (13) is nested and fixed on the outside of the straight tube (6), and the top of the anti-slip sleeve (13) is fixed to the bottom cover (3).
7. A multifunctional portable bacterial filter according to claim 1, characterized in that, The inner edge of the ring (14) is surrounded by a rubber strip, which is in flexible contact with the finger.
