Bag type filter

Abstract

A discharge port of the bag type filter comprises a communicating hole, a first sealing channel, a second sealing channel and a connecting channel, at least one positioning track groove is formed in the side wall of the connecting channel, and the positioning track groove at least comprises an inclined guide section and a locking section at the front end of the guide section; a discharging connector comprises a first sealing part, a first through hole, a second sealing part, a connecting part, an operating part and a connector part, a discharging channel communicated with the first through hole and the connector part is further formed in the discharging connector, and a positioning clamping table capable of moving along a positioning rail groove is further formed on the outer side wall of the connecting part; the second sealing part of the discharge joint and the second sealing channel are kept sealed, and the positioning clamping table is correspondingly arranged in the positioning rail groove; the discharging connector is provided with a closed position where the positioning clamping table is clamped to the locking section and the first sealing part and the first sealing channel keep sealed, and an open position where the positioning clamping table is located at the rear end of the positioning rail groove and the communicating hole is communicated with the first through hole. The utility model has the advantages that by adopting the scheme, the structures of the exhaust interface and the exhaust joint are further optimized, the structure is simpler, and the operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a capsule filter. Background Technology

[0002] Envelope filters, also known as integrated filters, use pleated inlet filter membranes, offering a large filtration surface area suitable for filtering larger volumes of solutions. Envelope filters typically consist of an envelope and an internal filter element. The envelope has inlet and outlet ports at its top and bottom. During filtration, liquid enters through the inlet, flows through the internal filter element, is filtered, and then flows out through the outlet. A drain port is usually located on the side of the envelope, connected to a drain connector for air or liquid drainage.

[0003] For example, Chinese utility model patent CN204220039U discloses a novel sterilization capsule filter, which has a drain port on the lower part of the side wall of the outer shell and an exhaust port on the upper part of the side wall of the outer shell. Both the drain port and the exhaust port are equipped with a closable connector.

[0004] The connector is fitted with an axially limiting and circumferentially rotatable threaded sleeve. During installation, one end of the connector is inserted into the interface, and the threaded sleeve engages with the external thread of the interface's outer ring. In operation, simply rotating the threaded sleeve easily moves the connector axially to open or close it, making operation and control very convenient.

[0005] However, there is still room for optimization and improvement of the aforementioned closable connector. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this utility model provides a capsule filter.

[0007] The technical solution adopted in this utility model is as follows: A capsule filter includes a housing and a built-in filter element fixedly installed inside the housing. The housing includes an upper housing and a lower housing, which are fixedly welded together. The upper housing has a liquid inlet connector at its upper end, and the lower housing has a liquid outlet connector at its lower end. Both the upper and lower housings have discharge ports formed on their side walls, and these discharge ports are connected to discharge connectors. Specifically, the discharge port located on the upper housing is an exhaust port for venting air, and the discharge port located on the lower housing is a liquid outlet for draining liquid.

[0008] The discharge port includes a connecting hole, a first sealing channel, a second sealing channel, and a connecting channel arranged sequentially from front to back. The side wall of the connecting channel forms at least one positioning track groove, and the positioning track groove includes at least an inclined guide section and a locking section at the front end of the guide section.

[0009] The discharge connector includes a first sealing part, a first through hole, a second sealing part, a connecting part, an operating part, and a connector part arranged sequentially from front to back. The discharge connector also has a discharge channel connecting the first through hole and the connector part. The outer wall of the connecting part also has a positioning plate that can move along the positioning track groove.

[0010] The front end of the discharge connector is inserted into the discharge interface, and the second sealing part and the second sealing channel remain sealed. The positioning card is correspondingly set in the positioning track groove. The discharge connector has a closed position where the positioning card is locked in the locking section and the first sealing part and the first sealing channel remain sealed, and an open position where the positioning card is located at the rear end of the positioning track groove and the connecting hole is connected to the first through hole.

[0011] The operating unit allows for easy rotation of the discharge connector. When the discharge connector rotates, the positioning guide between the positioning plate and the positioning track groove allows the discharge connector to move back and forth along the discharge interface axis, thereby switching between the closed and open positions. When in the closed position, the first sealing part and the first sealing channel maintain a reliable seal and there will be no leakage. When in the open position, the first sealing part and the first sealing channel separate, so that the connecting hole and the first through hole are connected. Air or residual liquid inside the housing can be discharged sequentially through the connecting hole, the first through hole, and the discharge channel, realizing the function of venting or draining.

[0012] Preferably, the first sealing part has a first sealing groove and a first sealing ring is provided in the first sealing groove; the second sealing part has a second sealing groove and a second sealing ring is provided in the second sealing groove. By using the sealing ring, not only is the structure simple and easy to install, but a reliable sealing effect can also be guaranteed.

[0013] Preferably, the positioning track groove is provided with two channels and is arranged symmetrically at the center. The discharge connector is provided with two corresponding positioning brackets. By setting two positioning track grooves and two positioning brackets, the structure is more stable, the force is balanced, and the operation is smooth and stable.

[0014] Preferably, the inner wall of the connecting channel is also formed with a guide groove extending from the rear end of the connecting channel to the positioning track groove, and a guide slope is formed on the front side of the positioning card platform, which makes it easier to quickly align and assemble the discharge connector and the discharge interface.

[0015] Preferably, the operating part has a polygonal structure, and the side of the operating part also has an operating boss protruding, which is simple in structure and convenient to operate.

[0016] The beneficial effects of this utility model are: by adopting the above solution, the structure of the exhaust interface and exhaust connector is further optimized, the structure is simpler, and the operation is more convenient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the capsule filter according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0019] Figure 3 This is a schematic diagram of the structure of the bag filter discharge connector when it is opened according to an embodiment of the present invention.

[0020] Figure 4 for Figure 3 Enlarged diagram of point B in the middle.

[0021] Figure 5 This is a schematic diagram of the shell structure of an embodiment of the present utility model.

[0022] Figure 6 for Figure 5 Enlarged diagram of point C in the middle.

[0023] Figure 7 for Figure 5 A schematic diagram of the structure of the outlet D direction.

[0024] Figure 8 This is a schematic diagram of the structure of the discharge connector in an embodiment of the present invention.

[0025] Figure 9 This is a schematic diagram of the structure of the discharge connector in an embodiment of the present invention.

[0026] Figure 10 for Figure 9 A schematic diagram of the structure of the discharge connector in direction E. Detailed Implementation

[0027] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, a capsule filter includes a housing 1 and a built-in filter element 2 fixedly installed inside the housing 1.

[0029] The housing 1 includes an upper housing and a lower housing, which are fixed together by welding. A cavity is formed inside the housing 1. The upper housing has an inlet connector 11 at its upper end, and the lower housing has an outlet connector 12 at its lower end. Both the upper and lower housings have discharge ports 3 on their side walls, and these discharge ports 3 are connected to discharge connectors 4. Alternatively, the housing can be a combination of a cylindrical body and a lower cover.

[0030] The built-in filter element 2 is typically a pleated filter element, comprising a coaxially arranged, porous central rod, a housing, and upper and lower end caps fixed to the housing and both ends of the central rod. A pleated filter membrane is provided between the central rod and the housing. The pleated filter membrane comprises at least one layer of filter material, which is folded to form pleats and forms a ring structure distributed around the central rod. The built-in filter element 2 is fixedly installed inside the housing 1, with its upper end cap closed and its lower end cap open and connected to the liquid outlet connector 12. The housing 1 is installed on a liquid pipeline via the liquid inlet connector 11 and the liquid outlet connector 12. During filtration, liquid enters from the liquid inlet connector 11, is filtered by the built-in filter element 2, and flows out from the liquid outlet connector 12. The discharge port is used for venting or draining liquid. The discharge port located on the upper housing is the vent port for venting, and the discharge port located on the lower housing is the drain port for draining liquid.

[0031] like Figures 5-7 As shown, the discharge port 3 includes a connecting hole 31, a first sealing channel 32, a second sealing channel 33, and a connecting channel 34 arranged sequentially from front to back. The side wall of the connecting channel 34 forms at least one positioning track groove 35. The positioning track groove 35 includes at least an inclined guide section 351 and a locking section 352. The locking section 352 is connected to the front end of the guide section 351.

[0032] Specifically, the positioning track groove 35 has two grooves, which are arranged symmetrically at the center.

[0033] The inner wall of the connecting channel 34 is also formed with a guide groove 36 extending from the rear end of the connecting channel 34 to the positioning track groove 35.

[0034] like Figures 8-10 As shown, the discharge connector 4 includes a first sealing part 41, a first through hole 42, a second sealing part 43, a connecting part 44, an operating part 45, and a connector part 46 arranged sequentially from front to back. The discharge connector 4 also has a discharge channel 47 that connects the first through hole 42 and the connector part 46. The outer wall of the connecting part 44 also has a positioning plate 48 that can move along the positioning track groove 35.

[0035] The first sealing part 41 has a first sealing groove 411, and a first sealing ring 412 is provided in the first sealing groove; the second sealing part 43 has a second sealing groove 431, and a second sealing ring 432 is provided in the second sealing groove. The sealing ring not only has a simple structure and is easy to install, but also ensures a reliable sealing effect.

[0036] The front end of the first sealing part 41 is also provided with a tapered guide surface 413. When installing the sealing ring, the tapered guide surface can also play a guiding role, which facilitates the quick installation of the sealing ring, reduces the installation difficulty, and improves the installation efficiency.

[0037] The discharge connector 4 has two positioning platforms 48 corresponding to the positioning track groove 35. The front side of the positioning platform 48 has a guide slope 481 so that it can be smoothly installed into the positioning track groove 35.

[0038] The operating part 45 has a polygonal structure, and an operating boss 451 protrudes from the side of the operating part 45. The structure is simple and easy to operate.

[0039] When installing the discharge connector 4 into the discharge port 3, align the two positioning plates 48 on the discharge connector 4 with the two guide grooves 36 on the discharge port 3, and then insert the discharge connector 4 into the discharge port 3 from front to back. The positioning plates 48 can then engage with the positioning track grooves 35 along the guide grooves 36. At this time, the rotation of the discharge connector 4 can be easily achieved by controlling the operating unit 45. When the discharge connector 4 rotates, the positioning guide between the positioning plates 48 and the positioning track grooves 35 allows the discharge connector 4 to move back and forth along the axis of the discharge port 3.

[0040] like Figures 1-2 As shown, the discharge connector 4 is in the closed position. At this time, the positioning plate 48 on the discharge connector 4 is locked in the locking section 352 at the front end of the positioning track groove, so that the discharge connector 4 is restricted and cannot move forward and backward axially. At the same time, the first sealing part 41 and the first sealing channel 32 remain sealed. Therefore, the gas or liquid inside the housing cavity cannot be discharged through the discharge channel.

[0041] like Figures 3-4 As shown, the discharge connector 4 is in the open position. At this time, the positioning plate 48 on the discharge connector 4 is located at the rear end of the positioning track groove. The first sealing part 41 is separated from the first sealing channel 32, so that the connecting hole 31 is connected to the first through hole 42. At the same time, the second sealing part 43 and the second sealing channel 33 remain sealed. Therefore, the gas or liquid inside the housing cavity can be discharged in sequence through the connecting hole 31, the first through hole 42, and the discharge channel 47 to realize the function of venting or draining.

[0042] Compared with existing technologies, the above solution further optimizes the exhaust interface and exhaust connector. Structurally, it eliminates the connecting sleeve structure, making the structure simpler. During production and assembly, the first and second sealing rings are directly fitted onto the exhaust connector, and then the exhaust connector can be easily pressed into the exhaust interface through the operating part, making the assembly operation more convenient. During operation, the guiding function of the positioning track groove is used to realize the exhaust connector moving back and forth quickly in the axial direction, making the opening and closing operation of the exhaust connector more convenient and faster.

[0043] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0045] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A capsule filter, comprising a housing (1) and an internal filter element (2) fixedly installed inside the housing (1), wherein the upper end of the housing (1) is provided with an inlet connector (11) and the lower end is provided with an outlet connector (12), and the side wall of the housing (1) is also formed with two discharge ports (3), wherein the discharge ports (3) are connected to a discharge connector (4). Its features are: The discharge port (3) includes a connecting hole (31), a first sealing channel (32), a second sealing channel (33), and a connecting channel (34) arranged sequentially from front to back. The side wall of the connecting channel (34) forms at least one positioning track groove (35). The positioning track groove (35) includes at least an inclined guide section (351) and a locking section (352) at the front end of the guide section (351). The discharge connector (4) includes a first sealing part (41), a first through hole (42), a second sealing part (43), a connecting part (44), an operating part (45), and a connector part (46) arranged sequentially from front to back. The discharge connector (4) also has a discharge channel (47) that connects the first through hole (42) and the connector part (46). The outer wall of the connecting part (44) also has a positioning plate (48) that can move along the positioning track groove (35). The front end of the discharge connector (4) is inserted into the discharge port (3), and the second sealing part (43) and the second sealing channel (33) are sealed. The positioning plate (48) is correspondingly set in the positioning track groove (35). The discharge connector (4) has a closed position in which the positioning plate (48) is locked in the locking section (352) and the first sealing part (41) and the first sealing channel (32) are sealed, and an open position in which the positioning plate (48) is located at the rear end of the positioning track groove (35) and the connecting hole (31) is connected to the first through hole (42).

2. The capsule filter according to claim 1, characterized in that: The first sealing part (41) has a first sealing groove (411) and a first sealing ring (412) is provided in the first sealing groove; the second sealing part (43) has a second sealing groove (431) and a second sealing ring (432) is provided in the second sealing groove.

3. The capsule filter according to claim 1, characterized in that: The positioning track groove (35) has two channels and is arranged symmetrically at the center. The discharge connector (4) has two corresponding positioning card platforms (48).

4. The capsule filter according to claim 1, characterized in that: The inner wall of the connecting channel (34) also forms a guide groove (36) extending from the rear end of the connecting channel (34) to the positioning track groove (35).

5. The capsule filter according to claim 4, characterized in that: A guide slope (481) is formed on the front side of the positioning card platform (48).

6. The capsule filter according to claim 1, characterized in that: The operating part (45) has a polygonal structure.

7. The capsule filter according to claim 6, characterized in that: The operating part (45) also has an operating boss (451) protruding from its side.

8. The capsule filter according to claim 1, characterized in that: The discharge port (3) located on the upper side of the housing (1) is an exhaust port, and the discharge port (3) located on the lower side of the housing (1) is a liquid drain port.

9. The capsule filter according to claim 1, characterized in that: The housing (1) includes an upper housing and a lower housing, which are fixedly welded together.

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