Plasma protein filter

Abstract

The utility model discloses a plasma protein filter. The plasma protein filter comprises a filter cartridge, a bottom cover, a first communication pipeline, a filter layer, a second communication pipeline, an exhaust pipe and an opening and closing device, the bottom of the filter cartridge is opened and closed by a bottom cover, a first communication pipeline and a second communication pipeline are mounted on the bottom cover, a filter layer is also mounted on the bottom cover, the filter cartridge is provided with an inner cavity, the inner cavity is divided into a first cavity and a second cavity by the filter layer, the first cavity is communicated with the first communication pipeline, and the second cavity is communicated with the second communication pipeline; the first cavity is surrounded by the filter layer, the second cavity is located outside the filter layer, and the top end of the filter cartridge is communicated with an exhaust pipe; the opening and closing device comprises an opening and closing pipe body, a separating part, a sealing part and an opening and closing executing mechanism, and one end of the opening and closing pipe body is connected with the exhaust pipe. The plasma protein filter solves the problem that in the prior art, the sealing performance of an exhaust pipe and a plugging head cannot be guaranteed, and it cannot be guaranteed that the exhaust pipe can be opened.

Description

Technical Field

[0001] The utility model relates to a filter, in particular to a plasma protein filter. Background Art

[0002] like Figure 1 as well as Figure 2 As shown, in the prior art, the plasma protein filter includes: a filter cartridge, a bottom cover 2, a first connecting pipe 3, a filter layer 4, a second connecting pipe 5, an exhaust pipe 6 and a plugging head 8. The bottom of the filter cartridge is opened and closed by the bottom cover 2. The first connecting pipe 3 and the second connecting pipe 5 are installed on the bottom cover 2. The filter layer 4 is also installed on the bottom cover 2. The filter cartridge is provided with an inner cavity. The filter layer 4 divides the inner cavity into a first cavity and a second cavity. The first cavity is connected to the first connecting pipe 3, and the second cavity is connected to the second connecting pipe 5. The first cavity is formed by being surrounded by the filter layer 4, and the second cavity is located outside the filter layer 4. The exhaust pipe 6 is connected to the top of the filter cartridge, and the exhaust pipe 6 is opened and closed by the plugging head 8.

[0003] When the above-mentioned plasma protein filter is working, since the plugging head 8 is inserted into the exhaust pipe 6 to achieve plugging, the plugging head 8 can be pulled out from the exhaust pipe 6 to open the exhaust pipe 6. At this time, the plasma protein can be successfully injected into the first cavity through the first connecting pipe 3. If the plugging head 8 is not opened, the change in air pressure in the filter cartridge caused by the injection of plasma protein will block the entry of plasma protein, resulting in the inability to inject plasma protein. Therefore, it is very important. However, after injecting plasma protein, the plugging head 8 needs to be inserted into the exhaust pipe 6 immediately. During this process, the plasma protein is slowly filtered. Therefore, the sealing performance of the plugging head 8 and the exhaust pipe 6 directly affects the quality of the plasma protein product. The plugging method of the plugging head 8 inserted into the exhaust pipe 6 will cause leakage. Therefore, how to ensure the sealing performance of the exhaust pipe 6 and the plugging head 8 and ensure that the exhaust pipe 6 can be opened is an urgent problem to be solved. Utility Model Content

[0004] The utility model provides a plasma protein filter to solve the problem in the prior art that the sealing performance of the exhaust pipe and the plugging head cannot be guaranteed while the exhaust pipe can be opened.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a plasma protein filter, comprising: the plasma protein filter comprises: a filter cartridge, a bottom cover, a first communicating pipe, a filter layer, a second communicating pipe, an exhaust pipe and an opening and closing device; the bottom of the filter cartridge is opened and closed by the bottom cover, the first communicating pipe and the second communicating pipe are installed on the bottom cover, the filter layer is also installed on the bottom cover, the filter cartridge is provided with an inner cavity, the filter layer divides the inner cavity into a first cavity body and a second cavity, the first cavity is connected with the first communicating pipe, the second cavity is connected with the second communicating pipe, the first cavity is formed by being surrounded by the filter layer, the second cavity is located outside the filter layer, and the exhaust pipe is connected at the top of the filter cartridge; the opening and closing device comprises: an opening and closing pipe body, A partition, a sealing part and an opening and closing actuator, one end of the opening and closing tube body is connected to the exhaust pipe, a partition is provided in the middle of the opening and closing tube body, the partition separates the inner holes at both ends of the opening and closing tube body, a connecting hole is provided in the partition, the connecting hole can connect the opening and closing tube body, the gas flow direction of the connecting hole is perpendicular to the gas flow direction of the inner hole of the opening and closing tube body, an opening and closing actuator is installed on the opening and closing tube body, the opening and closing actuator can move relative to the opening and closing tube body, the opening and closing actuator can also be positioned on the opening and closing tube body, no friction positioning is used between the opening and closing actuator and the opening and closing tube body, a sealing part is installed on the output end of the opening and closing actuator, and the sealing part can be pressed around the connecting hole by the opening and closing actuator.

[0007] Preferably, the opening and closing actuator comprises: a pressing block and a screw rod, the screw rod is hinged to the pressing block, and the pressing block is used to press the sealing part around the connecting hole.

[0008] Preferably, an opening is provided on one side of the opening and closing tube body, the opening is closed by a closing plate, and the closing plate is threadedly connected to the screw rod.

[0009] Preferably, the sealing portion is a barrel-shaped structure, and the edge of the sealing portion extends outward to form an extended edge, and the extended edge is pressed between the closing plate and the opening and closing tube body.

[0010] Preferably, a guide rod is fixed on the pressing block, and a guide hole is opened on one side of the closing plate close to the connecting hole, the guide hole is used for the guide rod to move, and the guide rod does not separate from the guide hole.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The prior art method of inserting the plugging head into the exhaust pipe is no longer used. This method relies on friction to position the plugging head at the exhaust pipe. When the air pressure in the filter cartridge cavity is too high, there is a risk of breaking the plugging head, resulting in a poor seal. In the present application, firstly, an opening and closing tube body is adopted to provide an installation basis for the partition part; then, the partition part is adopted to separate the inner holes at both ends of the opening and closing tube body, and only the connecting hole can connect the inner holes at both ends of the opening and closing tube body, which provides conditions for subsequently opening and closing the entire opening and closing tube body only by opening and closing the connecting hole. Since the gas flow direction of the connecting hole is perpendicular to the gas flow direction in the inner holes at both ends of the opening and closing tube body, the opening and closing actuator can be installed in a direction perpendicular to the axial center line of the opening and closing tube body to realize opening and closing the connecting hole, and it will not affect the normal exhaust of the opening and closing tube body after opening; then, the opening and closing actuator is installed on one side of the opening and closing tube body, and a sealing part is installed between the opening and closing actuator and the connecting hole. The sealing part is made of elastic sealing material, and friction positioning is not used between the opening and closing actuator and the opening and closing tube body. In this way, the opening and closing actuator can be fully positioned to press the sealing part tightly around the connecting hole, so that the connecting hole can be fully closed to avoid leakage at the connecting hole.

[0013] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of a plasma protein filter in the prior art.

[0015] Figure 2 It is a cross-sectional view of a plasma protein filter in the prior art.

[0016] Figure 3 Schematic diagram of the structure of the plasma protein filter in this application.

[0017] Figure 4 It is a cross-sectional view of the plasma protein filter in this application.

[0018] Figure 5 This is a cross-sectional view of the opening and closing device in this application.

[0019] Figure 6 This is an enlarged view of the top of the plasma protein filter in this application.

[0020] Figure numerals: filter cartridge 1, bottom cover 2, first connecting pipe 3, filter layer 4, second connecting pipe 5, exhaust pipe 6, opening and closing device 7, opening and closing tube body 71, partition 72, sealing part 73, outer edge 730, opening and closing actuator 74, clamping block 741, screw 742, guide rod 743, closing plate 75, sealing head 8. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0022] like Figures 3 to 6 As shown, the utility model discloses a plasma protein filter, comprising: the plasma protein filter comprises: a filter cartridge, a bottom cover 2, a first communicating pipe 3, a filter layer 4, a second communicating pipe 5, an exhaust pipe 6 and an opening and closing device 7; the bottom of the filter cartridge is opened and closed by the bottom cover 2, the first communicating pipe 3 and the second communicating pipe 5 are installed on the bottom cover 2, the filter layer 4 is also installed on the bottom cover 2, the filter cartridge is provided with an inner cavity, the filter layer 4 divides the inner cavity into a first cavity and a second cavity, the first cavity is connected to the first communicating pipe 3, the second cavity is connected to the second communicating pipe 5, the first cavity is formed by being surrounded by the filter layer 4, the second cavity is located outside the filter layer 4, and the exhaust pipe 6 is connected at the top of the filter cartridge; the opening and closing device 7 comprises: an opening and closing tube body 71, a partition 72, a sealing portion 73 And an opening and closing actuator 74, one end of the opening and closing tube body 71 is connected to the exhaust pipe 6, a partition 72 is provided in the middle of the opening and closing tube body 71, the partition 72 separates the inner holes at both ends of the opening and closing tube body 71, the partition 72 is provided with a connecting hole, the connecting hole can connect the opening and closing tube body 71, the gas flow direction of the connecting hole is perpendicular to the gas flow direction of the inner hole of the opening and closing tube body 71, an opening and closing actuator 74 is installed on the opening and closing tube body 71, the opening and closing actuator 74 can move relative to the opening and closing tube body 71, the opening and closing actuator 74 can also be positioned on the opening and closing tube body 71, no friction positioning is used between the opening and closing actuator 74 and the opening and closing tube body 71, a sealing part 73 is installed on the output end of the opening and closing actuator 74, and the sealing part 73 can be pressed around the connecting hole by the opening and closing actuator 74.

[0023] The opening and closing actuator 74 includes: a pressing block 741 and a screw rod 742. The screw rod 742 is hinged to the pressing block 741. The pressing block 741 is used to press the sealing part 73 around the connecting hole. By rotating the screw rod 742, the pressing block 741 can be pushed toward the sealing part 73, and the screw rod 742 and the opening and closing tube body 71 can be positioned by thread.

[0024] An opening is provided on one side of the opening and closing tube body 71, and the opening is closed by a closing plate 75, and the closing plate 75 is threadedly connected to the screw 742. The opening is designed to expose the connecting hole to the outside, and it is also convenient to install the opening and closing actuator 74 and the sealing part 73.

[0025] The sealing part 73 is a barrel-shaped structure, and the edge of the sealing part 73 extends outward to form an outer extension 730, and the outer extension 730 is pressed between the closing plate 75 and the opening and closing tube body 71. The shape design of the entire sealing part 73 can not only make the opening hole sealed, avoiding the problem of poor sealing caused by the opening of the opening hole, but also enable the sealing part 73 to be pushed to the position of blocking the communication hole by the opening and closing actuator 74, ensuring a better sealing effect. The dual function of the sealing part 73 is realized.

[0026] A guide rod 743 is fixed to the clamping block 741, and a guide hole is provided on one side of the closing plate 75 close to the connecting hole, and the guide hole is used for the guide rod 743 to move, and the guide rod 743 does not separate from the guide hole. The cooperation between the guide rod 743 and the guide hole prevents the clamping block 741 from rotating with the screw rod 742, thereby preventing the friction between the clamping block 741 and the sealing part 73 from damaging the sealing part 73 due to the rotation of the clamping block 741 relative to the sealing part 73, thereby extending the service life of the sealing part 73. The fact that the guide rod 743 does not separate from the guide hole is controlled by the spacing between the partition part 72 and the closing plate 75.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A plasma protein filter comprising: The plasma protein filter comprises: a filter cartridge, a bottom cover (2), a first communicating pipe (3), a filter layer (4), a second communicating pipe (5), an exhaust pipe (6) and an opening and closing device (7); the bottom of the filter cartridge is opened and closed by the bottom cover (2); the first communicating pipe (3) and the second communicating pipe (5) are mounted on the bottom cover (2); the filter layer (4) is also mounted on the bottom cover (2); the filter cartridge is provided with an inner cavity; the filter layer (4) divides the inner cavity into a first cavity and a second cavity; the first cavity is connected to the first communicating pipe (3); the second cavity is connected to the second communicating pipe (5); the first cavity is surrounded by the filter layer (4); the second cavity is located outside the filter layer (4); the exhaust pipe (6) is connected to the top of the filter cartridge; the characteristics are: The opening and closing device (7) comprises: an opening and closing tube body (71), a partition (72), a sealing part (73) and an opening and closing actuator (74); one end of the opening and closing tube body (71) is connected to the exhaust pipe (6); a partition (72) is provided in the middle of the opening and closing tube body (71); the partition (72) separates the inner holes at both ends of the opening and closing tube body (71); a connecting hole is provided in the partition (72); the connecting hole can connect the opening and closing tube body (71); the gas flow direction of the connecting hole is consistent with the gas flow direction of the inner hole of the opening and closing tube body (71); The opening and closing tube body (71) is perpendicular to the flow direction of the fluid, an opening and closing actuator (74) is installed on the opening and closing tube body (71), the opening and closing actuator (74) can move relative to the opening and closing tube body (71), and the opening and closing actuator (74) can also be positioned on the opening and closing tube body (71), and no friction positioning is used between the opening and closing actuator (74) and the opening and closing tube body (71), and a sealing part (73) is installed on the output end of the opening and closing actuator (74), and the sealing part (73) can be pressed around the connecting hole by the opening and closing actuator (74).

2. A plasma protein filter according to claim 1, characterized in that: The opening and closing actuator (74) comprises a pressing block (741) and a screw rod (742). The screw rod (742) is hinged to the pressing block (741). The pressing block (741) is used to press the sealing portion (73) around the connecting hole.

3. A plasma protein filter according to claim 2, characterized in that: An opening is provided on one side of the opening and closing tube body (71), and the opening is closed by a closing plate (75), and the closing plate (75) is threadedly connected to the screw rod (742).

4. A plasma protein filter according to claim 3, characterized in that: The sealing portion (73) is a barrel-shaped structure, and the edge of the sealing portion (73) extends outward to form an extension edge (730), and the extension edge (730) is pressed between the closing plate (75) and the opening and closing tube body (71).

5. A plasma protein filter according to claim 4, characterized in that: A guide rod (743) is fixed on the pressing block (741), and a guide hole is opened on one side of the closing plate (75) close to the connecting hole. The guide hole is used for the guide rod (743) to move, and the guide rod (743) does not separate from the guide hole.

Images