A quick-change filter cartridge filter device

Abstract

The utility model discloses a quick replacement filter core formula filter device, including filter main part, filter main part is by cylinder, flange, water inlet pipe, water outlet pipe, filter basket and top cover constitutes, and the filter basket is arranged in the cylinder, and water inlet pipe and water outlet pipe are respectively communicated on the both sides of cylinder, and the flange is connected in the top opening of cylinder, and the outer wall of flange is provided with a plurality of first notches, the utility model discloses the connection between two guide blocks, connecting axle, bolt and the ring nut of lifting, make the ring nut and bolt keep the state of connection under the condition, realize the rotating effect of bolt driving ring nut with connecting axle as the center, make the ring nut separate from top cover, and the thread section of bolt separates from second notched, realize the separation effect of top cover and flange, compared with prior art, can effectively avoid the complete separation between bolt and nut, thereby improve the disassembly efficiency of filter, realize the quick replacement effect of filter basket.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a quick-replacement filter device. Background Technology

[0002] Filters are indispensable devices in pipelines transporting media, typically installed at the inlet end of pressure reducing valves, pressure relief valves, level control valves, and other equipment. A basket filter consists of a cylinder, stainless steel filter screen, drain section, transmission device, and electrical control system. Basket filters are used in oil or other liquid pipelines to filter impurities. The filter pore area is 2-3 times larger than the pipe diameter, far exceeding the filtration area of ​​Y-type and T-type filters. Basket filters offer among the highest precision filters available. Their filter screen structure differs from other filters; they are named for their basket-like shape.

[0003] After a certain period of use, basket filters need to be removed from the inside for cleaning or replacement. However, traditional basket filters are usually connected by multiple bolts and nuts, which can only be disassembled after the bolts and nuts are completely separated, making it inconvenient to remove the filter basket. Therefore, a quick-replacement filter device is needed to meet people's needs. Utility Model Content

[0004] The purpose of this invention is to provide a quick-replacement filter device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-replacement filter device, comprising a filter body, which is composed of a cylinder, a flange, an inlet pipe, an outlet pipe, a filter basket, and a top cover. The filter basket is arranged inside the cylinder. The inlet pipe and the outlet pipe are respectively connected to the two sides of the cylinder. The flange is connected to the top opening of the cylinder. Several first slots are provided on the outer wall of the flange. Guide slots are provided on both sides of each first slot. Guide blocks are slidably connected in two guide slots. A common connecting shaft is connected between the two guide blocks. Bolts are rotatably connected to the outer wall of the connecting shaft. The nut section of the bolt is arranged in the first slot. Several second slots are provided on the outer wall of the top cover. The threaded section of each bolt is arranged in the corresponding second slot. A lifting eye nut is threadedly connected to the threaded section of each bolt. Several lifting eye nuts are arranged at the upper end of the top cover.

[0006] Preferably, the wall of the filter basket at the opening is inclined, with one side of the wall being lower than the bottom of the inlet pipe and the other side being higher than the top of the outlet pipe.

[0007] Preferably, the outer wall of the filter basket is provided with a handle, and the inner walls on both sides of the cylinder are provided with positioning grooves, which are arranged vertically, and the two branches of the handle are slidably connected in the positioning grooves.

[0008] Preferably, a sealing ring is embedded in the top of the flange, and the sealing ring is in contact with the bottom of the top cover.

[0009] Preferably, a plurality of first slots are evenly arranged in a circumferential shape on the flange, and a plurality of second slots are evenly arranged in a circumferential shape on the top cover.

[0010] Preferably, the guide groove has a toothed groove on the inner wall of the top end, and the guide block has teeth on the top end, which mesh in the toothed groove.

[0011] Preferably, the sum of the width of the guide groove and the depth of the tooth groove is greater than the sum of the thickness of the guide block and the thickness of the tooth.

[0012] The beneficial effects of this utility model are:

[0013] In this invention, the connection between two guide blocks, a connecting shaft, a bolt, and a lifting eye nut allows the lifting eye nut to rotate around the connecting shaft while the bolt remains connected to the bolt. This causes the lifting eye nut to separate from the top cover and the threaded section of the bolt to separate from the second slot, thus separating the top cover from the flange. Compared to existing technologies, this effectively avoids complete separation between the bolt and nut, thereby improving the disassembly efficiency of the filter and enabling rapid replacement of the filter basket.

[0014] In this invention, the sliding effect of the guide block within the guide groove enables the guide block to drive the connecting shaft, bolt, and lifting eye nut to move synchronously and in the same direction, as well as to move towards the top cover and the outer wall of the flange. This reduces the obstruction caused by the lifting eye nut rotating with the bolt, and also reduces the number of turns required to loosen the lifting eye nut, further improving the efficiency of filter disassembly and the efficiency of filter basket removal and replacement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a quick-change filter device according to the present invention;

[0016] Figure 2 This is a front cross-sectional view of a quick-replacement filter device proposed in this utility model.

[0017] Figure 3 This is a side sectional view of the connecting shaft of a quick-change filter device proposed in this utility model.

[0018] Figure 4This is a side view sectional view of the handle structure of a quick-change filter device proposed in this utility model;

[0019] Figure 5 This is a front cross-sectional view of the guide block structure of a quick-change filter device proposed in this utility model.

[0020] In the diagram: 1. Filter body; 2. Cylinder; 3. Flange; 4. Inlet pipe; 5. Outlet pipe; 6. Filter basket; 7. Top cover; 8. First slot; 9. Guide slot; 10. Guide block; 11. Connecting shaft; 12. Bolt; 13. Second slot; 14. Lifting eye nut; 15. Handle; 16. Positioning slot; 17. Sealing ring; 18. Gear groove; 19. Teeth. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A quick-replacement filter device includes a filter body 1, which consists of a cylinder 2, a flange 3, an inlet pipe 4, an outlet pipe 5, a filter basket 6, and a top cover 7. The filter basket 6 is arranged inside the cylinder 2. The inlet pipe 4 and the outlet pipe 5 are respectively connected to the two sides of the cylinder 2. The flange 3 is connected to the top opening of the cylinder 2. Several first slots 8 are opened on the outer wall of the flange 3. Guide slots 9 are opened on both sides of each first slot 8. Guide blocks 10 are slidably connected in two guide slots 9. The same connecting shaft 11 is connected between the two guide blocks 10. Bolts 12 are rotatably connected to the outer wall of the connecting shaft 11. The nut section of the bolt 12 is arranged in the first slot 8. Several second slots 13 are opened on the outer wall of the top cover 7. The threaded section of each bolt 12 is arranged in the corresponding second slot 13. A lifting eye nut 14 is threadedly connected to the threaded section of each bolt 12. Several lifting eye nuts 14 are arranged at the upper end of the top cover 7.

[0023] When the filter basket 6 needs to be removed for cleaning and replacement, rotate the lifting nut 14 to create a gap between the bottom of the lifting nut 14 and the top of the top cover 7. At this time, the lifting nut 14 is always connected to the bolt 12, but the locking force between the bolt 12 and the lifting nut 14 cannot support the connection between the top cover 7 and the flange 3. Use the lifting nut 14 to drive the bolt 12 to move towards the outer wall of the top cover 7. The bolt 12, connected by the connecting shaft 11, drives the guide block 10 to move in the guide groove 9. Use the lifting nut 14 to drive the bolt 12 to rotate outward of the top cover 7 with the connecting shaft 11 as the center, so that the lifting nut 14 separates from the top of the top cover 7, and the threaded section of the bolt 12 separates from the second groove 13, thereby completely disengaging the connection between the top cover 7 and the flange 3, exposing the filter basket 6. Compared with the prior art, the rotation effect of the bolt 12 driving the lifting nut 14 and the position movement effect achieve the quick-release effect of the filter, thereby achieving the quick-release effect of the internal filter element, i.e., the filter basket 6.

[0024] Specifically, in this embodiment, the wall of the open end of the filter basket 6 is inclined, with the height of one side wall being lower than the bottom height of the inlet pipe 4 and the height of the other side wall being higher than the top height of the outlet pipe 5, so as to ensure that after water enters the inlet pipe 4, the water is filtered through the filter basket 6 and discharged from the outlet pipe 5.

[0025] Specifically, in this embodiment, a handle 15 is provided on the outer wall of the filter basket 6, and a positioning groove 16 is provided on both inner walls of the cylinder 2. The positioning groove 16 is arranged vertically, and the two branches of the handle 15 are slidably connected in the positioning groove 16. The handle 15 facilitates the removal of the filter basket 6, and the cooperation with the positioning groove 16 ensures the fixed position of the filter basket 6 installed in the cylinder 2.

[0026] Specifically, in this embodiment, a sealing ring 17 is embedded in the top of the flange 3, and the sealing ring 17 contacts the bottom of the top cover 7, thereby improving the sealing effect between the top cover 7 and the flange 3.

[0027] Specifically, in this embodiment, several first slots 8 are evenly arranged in a circular shape on the flange 3, and several second slots 13 are evenly arranged in a circular shape on the top cover 7, ensuring the uniformity of pressure distribution after the connection and locking between the top cover 7 and the flange 3.

[0028] Specifically, in this embodiment, a toothed groove 18 is provided on the inner wall of the top end of the guide groove 9, and a tooth 19 is provided on the top end of the guide block 10. The tooth 19 engages in the toothed groove 18. The pressure generated when the eye nut 14 and the bolt 12 are locked together causes the bolt 12 to drive the connecting shaft 11 and the guide block 10 to move upward, thereby causing the tooth 19 to insert into the toothed groove 18, which in turn restricts the movement of the guide block 10 in the guide groove 9 and improves the stability after the eye nut 14 and the bolt 12 are locked together.

[0029] Specifically, in this embodiment, the sum of the width of the guide groove 9 and the depth of the tooth groove 18 is greater than the sum of the thickness of the guide block 10 and the thickness of the tooth 19. This allows the weight of the bolt 12 to drive the connecting shaft 11 and the guide block 10 to descend within the width of the guide groove 9 when the eye nut 14 and the bolt 12 are loosened. This causes the guide block 10 to separate the tooth 19 from the tooth groove 18, thereby facilitating the movement of the guide block 10 within the guide groove 9.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A quick-change cartridge filter device, comprising a filter body (1), characterized in that: The filter body (1) consists of a cylinder (2), a flange (3), an inlet pipe (4), an outlet pipe (5), a filter basket (6), and a top cover (7). The filter basket (6) is arranged inside the cylinder (2). The inlet pipe (4) and the outlet pipe (5) are respectively connected to the two sides of the cylinder (2). The flange (3) is connected to the top opening of the cylinder (2). Several first slots (8) are opened on the outer wall of the flange (3). Guide grooves (9) are opened on both sides of each first slot (8). Two guide grooves (9) are slidably connected in each guide groove (9). Guide block (10), two guide blocks (10) are connected by the same connecting shaft (11), and a bolt (12) is rotatably connected on the outer wall of the connecting shaft (11). The nut section of the bolt (12) is arranged in the first slot (8). Several second slots (13) are opened on the outer wall of the top cover (7). The threaded section of each bolt (12) is arranged in the corresponding second slot (13). A lifting eye nut (14) is threadedly connected to the threaded section of each bolt (12). Several lifting eye nuts (14) are arranged at the upper end of the top cover (7).

2. The quick-change filter cartridge device according to claim 1, characterized in that: The filter basket (6) has an inclined end wall, with one side wall height lower than the bottom of the inlet pipe (4) and the other side wall height higher than the top of the outlet pipe (5).

3. The quick-change filter cartridge device according to claim 1, characterized in that: The filter basket (6) is provided with a handle (15) on its outer wall, and positioning grooves (16) are provided on both sides of the inner wall of the cylinder (2). The positioning grooves (16) are arranged vertically, and the two sides of the handle (15) are slidably connected in the positioning grooves (16).

4. The quick-change cartridge filter device according to claim 1, characterized in that: A sealing ring (17) is embedded in the top of the flange (3), and the sealing ring (17) is in contact with the bottom of the top cover (7).

5. A quick-change cartridge filter device according to claim 1, characterized in that: Several first slots (8) are evenly arranged in a circular shape on the flange (3), and several second slots (13) are evenly arranged in a circular shape on the top cover (7).

6. A quick-change cartridge filter device according to claim 1, characterized in that: The guide groove (9) has a toothed groove (18) on its inner wall at the top, and the guide block (10) has teeth (19) on its top, which mesh in the toothed groove (18).

7. A quick-change cartridge filter device according to claim 1, characterized in that: The sum of the width of the guide groove (9) and the depth of the tooth groove (18) is greater than the sum of the thickness of the guide block (10) and the thickness of the tooth (19).

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