End sealing structure of filter cartridge

Abstract

The end sealing structure comprises the filter cartridge, a connecting pipe is arranged at the top of the filter cartridge, the connecting pipe is communicated with an inner cavity of the filter cartridge, a sealing pipe is connected to the inner side of an opening in the top end of the connecting pipe in an inserted mode, and sealing gaskets are arranged at the top end and the bottom end of the sealing pipe respectively. The top and the bottom of the side face of the sealing pipe are each provided with a plurality of sealing rings from top to bottom, and the sealing rings conduct sealing treatment on a gap between the sealing pipe and the connecting pipe. A plurality of connecting rods are evenly arranged on the side face of the sealing pipe, the ends of the connecting rods are rotationally connected with adjusting screws, the adjusting screws are in threaded connection with pressing plates, flange plates are arranged at the top ends of the connecting pipes, and the pressing plates are pressed at the bottoms of the flange plates. The sealing pipe is inserted into the opening in the top end of the filter cartridge, and the sealing ring and the sealing gasket are arranged between the sealing pipe and the filter cartridge, so that the filter cartridge and the sealing pipe can be effectively sealed; and the filter cartridge and the sealing pipe can be tightly pressed through the matching of the adjusting screw rod and the pressing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of filter cartridge installation, in particular to an end sealing structure of a filter cartridge. Background Art

[0002] In industrial production and environmental protection, filter cartridges are widely used as important filter elements for air purification and dust collection. The performance and reliability of filter cartridges depend, to a certain extent, on the effectiveness of their end seals. Traditional filter cartridges often connect their ends to the flanges of the filter equipment via flanges, with a gasket or sealant placed between the two flanges. However, after prolonged use, the filter cartridges can vibrate due to the impact of air or liquid flow. This can cause the flanges of the filter cartridge and the filter equipment to loosen, leading to failure of the seal between the two flanges and compromising the sealing effect.

[0003] Prior art utility model patent CN201621380171.2 discloses a high-temperature smoke filter cartridge sealing structure comprising a filter media upper edge, a filter media lower edge, and a metal pressing plate. The opposing surfaces of the filter media upper and lower edges are fixed together, and one end of the fixed filter media upper and lower edges is bent toward the other side of the filter media upper or lower edge to form a bent portion. The metal pressing plate presses the filter media upper and lower edges and the bent portion together. This filter cartridge sealing structure prevents dust from penetrating the seal, prevents filter media failure caused by glue shedding, and improves filter cartridge processing efficiency.

[0004] The filter cartridge sealing structure provided by the above patent is a structure for sealing between the metal sheets of the filter material box and the filter cartridge frame, and is not suitable for sealing between the filtering equipment and the filter cartridge. Utility Model Content

[0005] The purpose of the utility model is to provide an end sealing structure of a filter cartridge, aiming to improve the problem that the existing filter cartridge sealing structure is not suitable for sealing between the filtering equipment and the filter cartridge.

[0006] The utility model is achieved in this way:

[0007] A filter cartridge end sealing structure comprises a filter cartridge, wherein a connecting tube is provided at the top of the filter cartridge, the connecting tube is communicated with the inner cavity of the filter cartridge, and a sealing tube is inserted into the inner side of the top opening of the connecting tube, the top and bottom ends of the sealing tube are provided with sealing gaskets, and the top and bottom sides of the sealing tube are provided with multiple sealing rings from top to bottom, and the sealing rings seal the gap between the sealing tube and the connecting tube; multiple connecting rods are evenly provided on the side of the sealing tube, the ends of the connecting rods are rotatably connected to adjusting screws, the adjusting screws are threadedly connected to a pressure plate, a flange is provided at the top of the connecting tube, and the pressure plate is pressed tightly against the bottom of the flange.

[0008] Preferably, a limiting platform is provided at the inner bottom of the connecting pipe, a sealing groove is provided on the upper surface of the limiting platform, and a plurality of flange holes are provided at the edge of the flange.

[0009] Preferably, a mounting ring is provided in the middle of the side surface of the sealing tube, the connecting rod is arranged on the mounting ring, and a bearing is provided at one end of the connecting rod away from the mounting ring.

[0010] Preferably, a hexagon is provided at one end of the adjusting screw, and a connecting shaft is provided at one end of the hexagon facing the bearing, and the connecting shaft is interference-connected with the bearing.

[0011] Preferably, a connector is provided at one end of the pressure plate, a first threaded hole is provided in the middle of the connector, and a limit pin is provided on the upper surface of the other end of the pressure plate, and the limit pin passes through the flange hole.

[0012] Preferably, a limiting screw is further included, a second threaded hole is provided in the middle of the limiting pin, the limiting screw is threadedly connected to the second threaded hole, and a knob is provided at the top end of the limiting screw, the diameter of the knob is larger than the diameter of the limiting pin.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model inserts a sealing tube into the top opening of the filter cartridge, and arranges a sealing ring and a sealing gasket between the sealing tube and the filter cartridge, so that the filter cartridge and the sealing tube can be effectively sealed; and the filter cartridge and the sealing tube can be pressed tightly by the cooperation of the adjusting screw and the pressing plate, so as to ensure a good seal between the sealing gasket and the filter cartridge; when the sealing gasket fails to play a sealing role due to the loosening of the adjusting screw, multiple sealing rings can also play a sealing role, thereby ensuring the stability of the filter cartridge and the filtering equipment without sealing failure.

[0015] 2. The utility model provides a limiting screw on the top of the pressure plate, which stabilizes the pressure plate on the flange on the top of the filter cartridge, ensuring that the filter cartridge is stably connected to the sealing tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0017] Figure 2 It is a structural diagram of the filter cartridge of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the sealing tube of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the adjusting screw of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the pressing plate of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the limiting screw of the utility model.

[0022] In the figure: 1. Filter cartridge; 11. Connecting pipe; 12. Limiting platform; 13. Sealing groove; 14. Flange; 15. Flange hole; 2. Sealing pipe; 21. Sealing ring; 22. Sealing gasket; 23. Mounting ring; 24. Connecting rod; 25. Bearing; 3. Adjusting screw; 31. Hexagon; 32. Connecting shaft; 4. Pressing plate; 41. Connecting head; 42. First threaded hole; 43. Limiting pin; 44. Second threaded hole; 5. Limiting screw; 51. Knob. DETAILED DESCRIPTION

[0023] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0025] Example 1

[0026] like Figure 1 、 Figure 2 and Figure 3 As shown, a filter cartridge end sealing structure includes a filter cartridge 1, a connecting tube 11 is provided at the top of the filter cartridge 1, and the connecting tube 11 is connected to the inner cavity of the filter cartridge 1. This structure facilitates the connection of the filter cartridge 1 to the filtering equipment and facilitates the smooth passage of the filtered fluid through the filter cartridge 1 and discharge. A sealing tube 2 is inserted into the inner side of the top opening of the connecting tube 11, and a sealing gasket 22 is provided at the top and bottom of the sealing tube 2. A plurality of sealing rings 21 are provided on the top and bottom of the side of the sealing tube 2 from top to bottom. The sealing ring 21 seals the gap between the sealing tube 2 and the connecting tube 11; this structure ensures that the sealing ring 21 can still play a sealing role after the sealing gasket 22 becomes loose and loses its seal. A plurality of connecting rods 24 are evenly arranged on the side of the sealing tube 2, and the ends of the connecting rods 24 are rotatably connected to the adjusting screw 3. The adjusting screw 3 is threadedly connected to the pressure plate 4. The connecting rod cooperates with the adjusting screw 3 to drive the pressure plate 4 to move up and down, so that the sealing tube 2 is pressed tightly against the inner side of the connecting tube 11 under the action of the pressure plate 4. A flange 14 is provided at the top of the connecting pipe 11 , and the pressure plate 4 is pressed against the bottom of the flange 14 . This structure continuously applies pressure to the bottom of the flange 14 through the pressure plate 4 , so that the sealing pipe 2 is pressed against the inner bottom of the connecting pipe 11 .

[0027] like Figure 2 As shown, a stopper 12 is provided at the inner bottom of the connecting pipe 11, and a sealing groove 13 is provided on the upper surface of the stopper 12. The stopper 12 cooperates with the sealing groove 13 to cooperate with the sealing gasket 22 at the bottom of the sealing pipe 2. The sealing gasket 22 at the bottom of the sealing pipe 2 is pressed against the stopper 12, so that an effective seal is achieved between the sealing pipe 2 and the connecting pipe 11. The edge of the flange 14 is provided with multiple flange holes 15, which facilitate the stable installation and use of the filter cartridge 1.

[0028] like Figure 3 As shown, a mounting ring 23 is provided in the middle of the side of the sealing tube 2, and a connecting rod 24 is provided on the mounting ring 23. The mounting ring 23 is convenient for setting the connecting rod 24, and a bearing 25 is provided at the end of the connecting rod 24 away from the mounting ring 23. The bearing 25 is convenient for the connecting rod 24 to be rotatably connected to the adjusting screw 3.

[0029] like Figure 4 As shown, a hexagonal body 31 is provided at one end of the adjusting screw 3, which is convenient for rotating the adjusting screw 3 and facilitating the use of the adjusting screw 3. A connecting shaft 32 is provided at one end of the hexagonal body 31 facing the bearing 25, and the connecting shaft 32 is interference-connected with the bearing 25 to facilitate the rotation of the adjusting screw 3.

[0030] like Figure 5 As shown, a connector 41 is provided at one end of the pressure plate 4, and a first threaded hole 42 is provided in the middle of the connector 41. The connector 41 cooperates with the first threaded hole 42 to facilitate the rotational connection between the pressure plate 4 and the adjusting screw 3. A stop pin 43 is provided on the upper surface of the other end of the pressure plate 4. The stop pin 43 passes through the flange hole 15. This structure can ensure that the pressure plate 4 is stably connected to the filter cartridge 1.

[0031] Working principle: When in use, the sealing tube 2 is inserted into the connecting tube 11 so that the sealing gasket 22 is pressed into the sealing groove 13. At the same time, the sealing ring 21 will seal the gap between the sealing tube 2 and the connecting tube 11. Then, the driving screw is connected to the pressure plate 4 so that the pressure plate 4 is pressed against the bottom surface of the flange 14. By continuously twisting the pressure plate 4, the pressure plate 4 is stably pressed against the flange 14, ensuring that the bottom end of the sealing tube 2 is pressed against the limit platform 12, thereby ensuring that the filter cartridge 1 is stably used with the sealing tube 2. At the same time, the top of the sealing tube 2 is inserted into the corresponding position of the filter device, and the sealing tube 2 is connected to the filter device by adjusting the screw 3 and the pressure plate 4. This ensures that the filter cartridge 1 is indirectly connected to the filter device and also ensures good sealing between the filter device and the filter cartridge 1. Compared with the prior art, the present application can effectively seal the filter cartridge 1 and the sealing tube 2 by inserting the sealing tube 2 into the opening at the top of the filter cartridge 1 and arranging the sealing ring 21 and the sealing gasket 22 between the sealing tube 2 and the filter cartridge 1. And by adjusting the screw 3 and the pressure plate 4, the filter cartridge 1 and the sealing tube 2 can be pressed tightly to ensure a good seal between the sealing gasket 22 and the filter cartridge 1; when the adjusting screw 3 is loose and the sealing gasket 22 cannot play a sealing role, multiple sealing rings 21 can also play a sealing role, thereby ensuring the stability of the filter cartridge 1 and the filtering equipment without sealing failure.

[0032] Example 2

[0033] like Figure 1 、 Figure 2 and Figure 3 As shown, a filter cartridge end sealing structure includes a filter cartridge 1, a connecting tube 11 is provided at the top of the filter cartridge 1, and the connecting tube 11 is connected to the inner cavity of the filter cartridge 1. This structure facilitates the connection of the filter cartridge 1 to the filtering equipment and facilitates the smooth passage of the filtered fluid through the filter cartridge 1 and discharge. A sealing tube 2 is inserted into the inner side of the top opening of the connecting tube 11, and a sealing gasket 22 is provided at the top and bottom of the sealing tube 2. A plurality of sealing rings 21 are provided on the top and bottom of the side of the sealing tube 2 from top to bottom. The sealing ring 21 seals the gap between the sealing tube 2 and the connecting tube 11; this structure ensures that the sealing ring 21 can still play a sealing role after the sealing gasket 22 becomes loose and loses its seal. A plurality of connecting rods 24 are evenly arranged on the side of the sealing tube 2, and the ends of the connecting rods 24 are rotatably connected to the adjusting screw 3. The adjusting screw 3 is threadedly connected to the pressure plate 4. The connecting rod cooperates with the adjusting screw 3 to drive the pressure plate 4 to move up and down, so that the sealing tube 2 is pressed tightly against the inner side of the connecting tube 11 under the action of the pressure plate 4. A flange 14 is provided at the top of the connecting pipe 11 , and the pressure plate 4 is pressed against the bottom of the flange 14 . This structure continuously applies pressure to the bottom of the flange 14 through the pressure plate 4 , so that the sealing pipe 2 is pressed against the inner bottom of the connecting pipe 11 .

[0034] like Figure 2As shown, a stopper 12 is provided at the inner bottom of the connecting pipe 11, and a sealing groove 13 is provided on the upper surface of the stopper 12. The stopper 12 cooperates with the sealing groove 13 to cooperate with the sealing gasket 22 at the bottom of the sealing pipe 2. The sealing gasket 22 at the bottom of the sealing pipe 2 is pressed against the stopper 12, so that an effective seal is achieved between the sealing pipe 2 and the connecting pipe 11. The edge of the flange 14 is provided with multiple flange holes 15, which facilitate the stable installation and use of the filter cartridge 1.

[0035] like Figure 3 As shown, a mounting ring 23 is provided in the middle of the side of the sealing tube 2, and a connecting rod 24 is provided on the mounting ring 23. The mounting ring 23 is convenient for setting the connecting rod 24, and a bearing 25 is provided at the end of the connecting rod 24 away from the mounting ring 23. The bearing 25 is convenient for the connecting rod 24 to be rotatably connected to the adjusting screw 3.

[0036] like Figure 4 As shown, a hexagonal body 31 is provided at one end of the adjusting screw 3, which is convenient for rotating the adjusting screw 3 and facilitating the use of the adjusting screw 3. A connecting shaft 32 is provided at one end of the hexagonal body 31 facing the bearing 25, and the connecting shaft 32 is interference-connected with the bearing 25 to facilitate the rotation of the adjusting screw 3.

[0037] like Figure 5 As shown, a connector 41 is provided at one end of the pressure plate 4, and a first threaded hole 42 is provided in the middle of the connector 41. The connector 41 cooperates with the first threaded hole 42 to facilitate the rotational connection between the pressure plate 4 and the adjusting screw 3. A stop pin 43 is provided on the upper surface of the other end of the pressure plate 4. The stop pin 43 passes through the flange hole 15. This structure can ensure that the pressure plate 4 is stably connected to the filter cartridge 1.

[0038] like Figure 6 As shown, it also includes a limiting screw 5, a second threaded hole 44 is provided in the middle of the limiting pin 43, the limiting screw 5 is threadedly connected to the second threaded hole 44, and a knob 51 is provided at the top of the limiting screw 5, and the diameter of the knob 51 is larger than the diameter of the limiting pin 43; this structure can ensure that the pressure plate 4 will not easily separate from the flange 14 on the top of the filter cartridge 1, thereby ensuring that the sealing tube 2 and the filter cartridge 1 can be stably connected.

[0039] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An end sealing structure of a filter cartridge, comprising a filter cartridge (1), characterized in that: The filter cartridge (1) is provided with a connecting tube (11) at the top, the connecting tube (11) is communicated with the inner cavity of the filter cartridge (1), and a sealing tube (2) is inserted into the inner side of the top opening of the connecting tube (11), the top and bottom of the sealing tube (2) are both provided with sealing gaskets (22), and the top and bottom of the side of the sealing tube (2) are both provided with multiple sealing rings (21) from top to bottom, and the sealing rings (21) seal the gap between the sealing tube (2) and the connecting tube (11); the side of the sealing tube (2) is evenly provided with multiple connecting rods (24), the end of the connecting rod (24) is rotatably connected to the adjusting screw (3), the adjusting screw (3) is threadedly connected to the pressure plate (4), the top of the connecting tube (11) is provided with a flange (14), and the pressure plate (4) is pressed tightly against the bottom of the flange (14).

2. The end sealing structure of a filter cartridge according to claim 1, characterized in that: A limiting platform (12) is provided at the bottom inner side of the connecting pipe (11), a sealing groove (13) is provided on the upper surface of the limiting platform (12), and a plurality of flange holes (15) are provided on the edge of the flange plate (14).

3. The end sealing structure of a filter cartridge according to claim 1, characterized in that: A mounting ring (23) is provided in the middle of the side of the sealing tube (2), the connecting rod (24) is arranged on the mounting ring (23), and a bearing (25) is provided at one end of the connecting rod (24) away from the mounting ring (23).

4. The end sealing structure of a filter cartridge according to claim 3, characterized in that: A hexagonal body (31) is provided at one end of the adjusting screw (3), and a connecting shaft (32) is provided at one end of the hexagonal body (31) facing the bearing (25). The connecting shaft (32) is interference-connected with the bearing (25).

5. The end sealing structure of a filter cartridge according to claim 2, characterized in that: A connector (41) is provided at one end of the pressure plate (4), a first threaded hole (42) is provided in the middle of the connector (41), and a limit pin (43) is provided on the upper surface of the other end of the pressure plate (4), and the limit pin (43) passes through the flange hole (15).

6. The end sealing structure of the filter cartridge according to claim 5, characterized in that: The invention also includes a limiting screw (5), a second threaded hole (44) is provided in the middle of the limiting pin (43), the limiting screw (5) is threadedly connected to the second threaded hole (44), and a knob (51) is provided at the top end of the limiting screw (5), and the diameter of the knob (51) is larger than the diameter of the limiting pin (43).

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