Bacteria filter

Abstract

The utility model discloses a bacterial filter and relates to the field of medical machinery, the bacterial filter comprises a filter box, an air inlet pipe, an air outlet pipe, a medicine inlet, a filter element and a connecting pipe, the air inlet pipe and the air outlet pipe are respectively arranged at the upper end and the lower end of the filter box, the medicine inlet is arranged on one side, close to the air inlet pipe, of the filter box, and the filter element is arranged in the filter box; a first connector and a second connector are arranged at the two ends of the connecting pipe respectively, a locking assembly is arranged on the first connector, the first connector is connected with the air outlet pipe through the locking assembly, and the second connector is connected with an equipment pipeline. The connecting pipe is utilized, when the length of the equipment pipeline is small, the locking assembly on the first connector is used for connecting the air outlet pipe and the connecting pipe, the second connector is used for connecting the connecting pipe of the equipment pipeline, and therefore the bacterial filter can be conveniently connected with the equipment pipeline.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a bacterial filter. Background Technology

[0002] A bacterial filter is a device used to remove microorganisms from liquids or gases. It works by physically blocking bacteria and other impurities, and is often made of materials such as polyethersulfone and cellulose acetate. It is widely used in medical infusions, laboratory solution sterilization, biopharmaceuticals, and water treatment, effectively preventing microbial contamination and ensuring product sterility.

[0003] Existing bacterial filters include a filter cartridge with an inlet and an outlet pipe. The outlet pipe of the filter is directly connected to the equipment pipeline. If the equipment pipeline is short, the connection between the outlet pipe and the equipment pipeline will be affected, which in turn will affect the use of the filter. Utility Model Content

[0004] To facilitate the connection between the air outlet pipe and the equipment pipeline, this application provides a bacterial filter.

[0005] The bacterial filter provided in this application adopts the following technical solution:

[0006] A bacterial filter includes a filter box, an air inlet pipe, an air outlet pipe, a drug inlet, a filter element, and a connecting pipe. The air inlet pipe and the air outlet pipe are respectively located at the upper and lower ends of the filter box. The drug inlet is located on the side of the filter box near the air inlet pipe. The filter element is located inside the filter box. The two ends of the connecting pipe are respectively provided with a first connector and a second connector. The first connector is provided with a locking component and is connected to the air outlet pipe through the locking component. The second connector is connected to a device pipeline.

[0007] By adopting the above technical solution, when the length of the equipment pipeline is short, the locking component on the first connector is used to connect the air outlet pipe and the connecting pipe, and the second connector is used to connect the connecting pipe of the equipment pipeline, thereby facilitating the connection between the bacterial filter and the equipment pipeline.

[0008] Preferably, the locking assembly includes a locking block, which is fixedly disposed on the outer side wall of the first connector. A sliding groove is formed on the inner side wall of the air outlet pipe along its own axis. A locking groove is formed on the inner side wall of the air outlet pipe at the end of the sliding groove near the filter box. The locking groove is located on the side of the sliding groove along the circumference of the air outlet pipe. The locking block is slidably disposed in the sliding groove and the locking groove.

[0009] By adopting the above technical solution, when connecting the first connector and the air outlet pipe, the first connector is first inserted into the air outlet pipe. At this time, the locking block slides in the groove. When the locking block slides to the end of the groove, the first connector is rotated to make the locking block slide into the locking groove, which facilitates the quick locking of the locking block and improves work efficiency.

[0010] Preferably, the air outlet pipe is provided with a guide groove at the connection between the slide groove and the locking groove.

[0011] By adopting the above technical solution, the guide groove guides the sliding of the locking block, making it easier for the locking block to slide from the slide groove into the locking groove.

[0012] Preferably, the air outlet pipe is provided with a backflow preventer on the side of the locking groove near the guide groove. The locking block has a backflow preventer groove on its side wall near the connecting pipe. When the locking block enters the locking groove, the backflow preventer is inserted into the backflow preventer groove.

[0013] By adopting the above technical solution, when the locking block rotates into the locking groove, the anti-reverse block is inserted into the anti-reverse groove. At this time, the anti-reverse block limits the locking block through the anti-reverse groove, so that the locking block will not slide out of the locking groove, thereby making the locking effect of the locking block more stable.

[0014] Preferably, a retaining ring is fixedly provided on the outer side wall of the first connector, and a sealing ring is provided on the side wall of the retaining ring near the air outlet pipe.

[0015] By adopting the above technical solution, when the air outlet pipe is inserted into the first connector, the first connector is pressed against the retaining ring by the sealing ring, thereby sealing the interface between the first connector and the air outlet pipe, preventing gas leakage, and ensuring the effect of bacterial filtration.

[0016] Preferably, the connecting pipe is configured as a telescopic corrugated pipe.

[0017] By adopting the above technical solution, the connecting pipe is set as a telescopic corrugated pipe, which can adjust the direction and extend the length of the connecting pipe, making the connecting pipe more practical and facilitating the connection of the air outlet pipe with related equipment.

[0018] Preferably, the filter box includes a box body and a box cover, the box cover is detachably mounted on the box body, and the filter element is disposed inside the box cover.

[0019] By adopting the above technical solution, the lid is detachable, which facilitates the installation, replacement and maintenance of the lid by staff.

[0020] Preferably, a pressure ring is provided at the bottom of the cover, and the pressure ring abuts against the top of the filter element.

[0021] By adopting the above technical solution, when the cover is installed on the box body, the pressure ring presses the filter element tightly inside the box body, making the position of the filter element more stable.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Using a connecting pipe, when the length of the equipment pipeline is short, the locking component on the first connector is used to connect the air outlet pipe and the connecting pipe, and the second connector is used to connect the connecting pipe of the equipment pipeline, thereby facilitating the connection between the bacterial filter and the equipment pipeline;

[0024] 2. With the help of a check block and a check groove, when the locking block rotates into the locking groove, the check block inserts into the check groove. At this time, the check block limits the locking block through the check groove, so that the locking block will not slide out of the locking groove, thus making the locking effect of the locking block more stable.

[0025] 3. With the sealing ring, when the air outlet pipe is inserted into the first connector, the first connector is pressed against the retaining ring by the sealing ring, thus sealing the interface between the first connector and the air outlet pipe, preventing gas leakage and ensuring the effectiveness of bacterial filtration. Attached Figure Description

[0026] Figure 1 This is an exploded view of the overall structure of the bacterial filter in this application.

[0027] Figure 2 This is a reverse exploded view of the overall structure of the bacterial filter in this application;

[0028] Figure 3 This is a partial structural cross-sectional view of the bacterial filter of this application;

[0029] Figure 4 For this application Figure 1 Enlarged view of point A in the middle;

[0030] Figure 5 For this application Figure 3 Enlarged diagram of point B in the middle.

[0031] Reference numerals in the attached drawings: 1. Filter box; 101. Box body; 102. Box cover; 2. Air inlet pipe; 3. Air outlet pipe; 5. Filter element; 6. Connecting pipe; 7. First connector; 8. Second connector; 9. Locking block; 10. Slide groove; 11. Locking groove; 12. Guide groove; 13. Check block; 14. Check groove; 15. Retaining ring; 16. Sealing ring; 17. Pressure ring; 18. Drug inlet. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0033] This application discloses a bacterial filter.

[0034] Reference Figure 1 , Figure 2 and Figure 3 A bacterial filter includes a filter box 1, an air inlet pipe 2, an air outlet pipe 3, a drug inlet 18, a filter element 5, and a connecting pipe 6. The filter box 1 includes a box body 101 and a box cover 102. The filter element 5 is installed inside the box cover 102, and the box cover 102 is detachably installed on the box body 101. A pressure ring 17 is fixedly installed at the bottom of the box cover 102. The pressure ring 17 is circular. When the box cover 102 is installed on the box body 101, the pressure ring 17 presses the filter element 5 tightly inside the box body 101 from top to bottom, making the structure of the filter element 5 more stable and less prone to shaking.

[0035] The air inlet pipe 2 is fixedly installed in the middle of the top wall of the box cover 102, the air outlet pipe 3 is installed in the middle of the bottom of the box body 101, and the medicine inlet 18 is installed on the top of the box cover 102 and located on the side of the air inlet pipe 2.

[0036] A first connector 7 is fixedly installed at one end of the connecting pipe 6. The first connector 7 is located on the side close to the air outlet pipe 3. A locking component is installed on the first connector 7, and the first connector 7 is connected to the air outlet pipe 3 through the locking component. A second connector 8 is fixedly installed at the other end of the connecting pipe 6. The second connector 8 is located on the side away from the air outlet pipe 3, and the second connector 8 is connected to the equipment pipeline.

[0037] The connecting pipe 6 is set as a telescopic corrugated pipe, which is connected to the air outlet pipe 3 of the bacterial filter through the first connector 7. The connection direction of the telescopic corrugated pipe is adjusted according to the position between the second connector 8 and the equipment pipeline. At the same time, the connecting pipe 6 is shortened or extended according to the distance between the second connector 8 and the equipment pipeline, making the connecting pipe 6 more practical and facilitating the effective connection between the bacterial filter and the equipment pipeline.

[0038] A retaining ring 15 is fixedly installed on the outer wall of the first connector 7, and a sealing ring 16 is fixedly installed on the side wall of the retaining ring 15. The sealing ring 16 is located on the side of the retaining ring 15 closer to the air outlet pipe 3. When the air outlet pipe 3 is inserted into the first connector 7, the first connector 7 seals against the retaining ring 15 by pressing against the sealing ring 16, which helps to block gas from flowing out and avoids gas leakage due to gaps at the connection between the first connector 7 and the retaining ring 15, thus affecting the bacterial filtration effect.

[0039] Reference Figure 4 and Figure 5The locking assembly includes two locking blocks 9, which are symmetrically fixedly installed on the outer wall of the first connector 7 along the diameter direction of the first connector 7. Two sliding grooves 10 are symmetrically opened on the inner wall of the air outlet pipe 3. The sliding grooves 10 are arranged along the axis of the air outlet pipe 3. Two locking slots 11 are opened on the inner wall of the air outlet pipe 3. The two locking slots 11 are located at the end of the two sliding grooves 10 near the filter box 1 and are located on the side of the sliding grooves 10 along the circumference of the air outlet pipe 3. The locking slots 11 are connected to the sliding grooves 10, and the locking blocks 9 are slidably installed in the sliding grooves 10 and the locking slots 11.

[0040] The air outlet pipe 3 has a guide groove 12 at the connection between the slide groove 10 and the locking groove 11. A check block 13 is fixedly installed at the end of the air outlet pipe 3 near the guide groove 12 in the locking groove 11. A check groove 14 is provided on the side wall of the locking block 9 near the connecting pipe 6. When the locking block 9 enters the locking groove 11, the check block 13 is inserted into the check groove 14.

[0041] The implementation principle of a bacterial filter according to an embodiment of this application is as follows: when the equipment pipeline is short, a connecting pipe 6 is used to connect the air outlet pipe 3 and the equipment pipeline, a second connector 8 is used to connect the equipment pipeline and the connecting pipe 6, and a first connector 7 is used to connect the air outlet pipe 3 and the connecting pipe 6.

[0042] When connecting the first connector 7 and the air outlet pipe 3, the first connector 7 is first inserted into the air outlet pipe 3, so that the locking block 9 starts to slide in the slide groove 10. When the locking block 9 slides to the end of the slide groove 10, the first connector 7 is rotated so that the locking block 9 slides through the guide groove 12 into the locking groove 11. At this time, the anti-reverse block 13 enters the anti-reverse groove 14 and prevents the locking block 9 from sliding out of the locking groove 11. The locking block 9 connects and locks the first connector 7 and the air outlet pipe 3, and the sealing ring 16 is pressed against the end wall of the air outlet pipe 3 for sealing.

[0043] When disassembling the first connector 7 and the air outlet pipe 3, first squeeze the first connector 7 towards the filter box 1. The first connector 7 squeezes the sealing ring 16 and causes slight movement, so that the check block 13 disengages from the check groove 14. Then rotate the first connector 7, and the first connector 7 drives the locking block 9 to rotate from the locking groove 11 into the sliding groove 10. Then slide the first connector 7 to disassemble the first connector 7 and the air outlet pipe 3.

[0044] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A bacterial filter, characterized in that: The filter includes a filter box (1), an air inlet pipe (2), an air outlet pipe (3), a medicine inlet (18), a filter element (5), and a connecting pipe (6). The air inlet pipe (2) and the air outlet pipe (3) are respectively located at the upper and lower ends of the filter box (1). The medicine inlet (18) is located on the side of the filter box (1) near the air inlet pipe (2). The filter element (5) is located inside the filter box (1). The two ends of the connecting pipe (6) are respectively provided with a first connector (7) and a second connector (8). The first connector (7) is provided with a locking component. The first connector (7) is connected to the air outlet pipe (3) through the locking component. The second connector (8) is connected to the equipment pipeline.

2. A bacterial filter according to claim 1, characterized in that: The locking assembly includes a locking block (9), which is fixedly disposed on the outer side wall of the first connector (7). A sliding groove (10) is provided on the inner side wall of the air outlet pipe (3) along its own axis. A locking groove (11) is provided on the inner side wall of the air outlet pipe (3) at one end of the sliding groove (10) near the filter box (1). The locking groove (11) is located on the side of the sliding groove (10) along the circumference of the air outlet pipe (3). The locking block (9) is slidably disposed in the sliding groove (10) and the locking groove (11).

3. A bacterial filter according to claim 2, characterized in that: The air outlet pipe (3) is provided with a guide groove (12) at the connection between the slide groove (10) and the locking groove (11).

4. A bacterial filter according to claim 3, characterized in that: The air outlet pipe (3) is provided with a backflow preventer (13) on the side of the locking groove (11) near the guide groove (12). The locking block (9) is provided with a backflow preventer (14) on the side wall near the connecting pipe (6). When the locking block (9) enters the locking groove (11), the backflow preventer (13) is inserted into the backflow preventer (14).

5. A bacterial filter according to claim 1, characterized in that: A retaining ring (15) is fixedly provided on the outer side wall of the first connector (7), and a sealing ring (16) is provided on the side wall of the retaining ring (15) near the air outlet pipe (3).

6. A bacterial filter according to claim 1, characterized in that: The connecting pipe (6) is configured as a telescopic corrugated pipe.

7. A bacterial filter according to claim 1, characterized in that: The filter box (1) includes a box body (101) and a box cover (102). The box cover (102) is detachably mounted on the box body (101), and the filter element (5) is mounted inside the box cover (102).

8. A bacterial filter according to claim 7, characterized in that: The bottom of the cover (102) is provided with a pressure ring (17), which abuts against the top of the filter element (5).

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