Rotary locking type filter bag fixing structure

Abstract

The utility model discloses a rotary locking type filter bag fixing structure which comprises a filter cartridge, a filter basket is arranged in the filter cartridge, and a filter bag is sleeved in the filter basket; a circle of bearing table is arranged on the inner side of the top of the filter basket, a plurality of openings distributed at intervals are formed in the upper portion of the bearing table, a communicated pressing opening is formed in one side of each opening, and a sealing gasket is arranged in each pressing opening; a reinforcing ring is installed on the bearing table, pressing elastic pieces in one-to-one correspondence with the openings are arranged on the edge of the outer side of the reinforcing ring, and the pressing elastic pieces can enter from the openings and rotate along the pressing openings to be tightly attached to the sealing gasket so as to clamp and fix the filter bag; a plurality of positioning stand columns are arranged on the top face of the reinforcing ring, a cover pressing plate is further installed on the filter basket in a pressing mode, a plurality of positioning holes corresponding to the positioning stand columns in a one-to-one mode are formed in the cover pressing plate, and the cover pressing plate is detachably connected with the filter cylinder. The filter bag is easy and convenient to install, the filter bag cannot fall off, the overall sealing performance is good, and looseness cannot be generated.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a rotary locking filter bag fixing structure. Background Technology

[0002] Existing filter bag fixing structures often suffer from problems such as cumbersome installation, poor sealing, easy loosening, and easy detachment of filter bags. Filter bags are mainly tightened by pressure rings. During the operation of the filter, the filter bags are easily washed off by the filtered liquid, which cannot guarantee the filtration effect. Moreover, the filter bags are not easy to disassemble, which leads to maintenance difficulties. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rotary locking filter bag fixing structure, which aims to solve the technical problems of cumbersome filter bag disassembly and assembly, easy detachment, poor sealing of fixing structure and easy loosening in the prior art.

[0004] The technical solution of this utility model is: a rotary locking filter bag fixing structure, including a filter cylinder, a filter basket installed inside the filter cylinder, and a filter bag sleeved inside the filter basket; a receiving platform is provided on the inner side of the top of the filter basket, and multiple spaced openings are provided above the receiving platform, each of the openings having a communicating pressing port on one side, and a sealing gasket inside the pressing port; a reinforcing ring is installed on the receiving platform, and a pressing spring corresponding to each of the openings is provided on the outer edge of the reinforcing ring, the pressing spring being able to enter through the opening and rotate along the pressing port until it is tightly fitted with the sealing gasket, thereby clamping and fixing the filter bag; multiple positioning columns are provided on the top surface of the reinforcing ring, and a cover plate is also pressed onto the filter basket, the cover plate having multiple positioning holes corresponding to each of the positioning columns, and the cover plate being detachably connected to the filter cylinder.

[0005] Furthermore, the top surface of the receiving platform in this utility model is provided with a positioning groove, and the bottom surface of the reinforcing ring is provided with a positioning protrusion that cooperates with the positioning groove.

[0006] Furthermore, in this utility model, the top of the opening penetrates through the top surface of the filter basket, one end of the pressing port is connected to the bottom of the opening, and the other end extends downward at an angle.

[0007] Furthermore, in this invention, the sealing gasket is disposed on the bottom and / or top surface of the pressing port.

[0008] Furthermore, in this invention, the thickness of the sealing gasket gradually increases from the higher end of the compression port to the lower end.

[0009] Furthermore, the reinforcing ring in this invention has a cross-shaped reinforcing plate in the middle, and the cross-shaped reinforcing plate is fixedly connected to the inner side of the reinforcing ring.

[0010] Furthermore, the filter cartridge of this invention has a plurality of connecting studs on its top surface, and the cover plate has a plurality of connecting holes corresponding to each of the connecting studs. A locking nut is fitted onto the top of each connecting stud.

[0011] Compared with the prior art, this utility model has the following advantages: When fixing the filter bag, simply align the reinforcing ring with the receiving platform and rotate it to make the clamping spring clip snap into the clamping port, thus quickly fixing the filter bag. Then, cover the pressure plate and align the positioning hole of the pressure plate with the positioning column of the reinforcing ring to position the reinforcing ring and prevent reverse rotation. Finally, use the locking nut to lock and fix it. The installation is simple and convenient, the filter bag will not fall off, the overall sealing is good and there will be no loosening. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram showing the cooperation between the filter basket and the reinforcing ring in this utility model;

[0014] Figure 3 This is a split perspective view of the filter basket and the reinforcing ring described in this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the filter basket and the reinforcing ring after installation in this utility model;

[0016] Figure 5 for Figure 1 A magnified view of part A in the middle.

[0017] The components are: 1. Filter cartridge; 2. Filter basket; 3. Receiving platform; 3a. Positioning groove; 4. Opening; 5. Pressing port; 6. Sealing gasket; 7. Reinforcing ring; 7a. Positioning convex ring; 8. Pressing spring; 9. Positioning column; 10. Cover plate; 11. Positioning hole; 12. Cross reinforcing plate; 13. Connecting stud; 14. Connecting hole; 15. Locking nut. Detailed Implementation

[0018] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Example:

[0020] The accompanying drawings illustrate a specific embodiment of the rotary locking filter bag fixing structure of this utility model. Figure 1 It mainly includes a filter cartridge 1, a filter basket 2 installed inside the filter cartridge 1, and a filter bag inside the filter basket 2 (the filter bag is in...). Figure 1 (Not shown in the image).

[0021] Combination Figure 2 , Figure 3 The inner side of the top of the filter basket 2 is provided with a ring of inwardly protruding receiving platform 3, and the top surface of the receiving platform 3 is provided with a ring of downwardly recessed positioning groove 3a.

[0022] The receiving platform 3 has multiple spaced openings 4 on its upper surface, evenly arranged around the center of the filter basket 2, with the top of each opening 4 penetrating the top surface of the filter basket 2. Each opening 4 has a connected pressing port 5 on one side, with one end of the pressing port 5 connected to the bottom of the opening 4 and the other end extending downwards at an angle. A sealing gasket 6 is provided inside the pressing port 5, located on its bottom and / or top surface. In this embodiment, the sealing gasket 6 is located on the bottom surface of the pressing port 5, and the thickness of the sealing gasket 6 gradually increases from the higher end to the lower end of the pressing port 5, which helps to improve the pressing effect.

[0023] A reinforcing ring 7 is installed on the receiving platform 3. The bottom surface of the reinforcing ring 7 is provided with a positioning protrusion 7a that cooperates with the positioning groove 3a. When the reinforcing ring 7 is placed on the receiving platform 3 and rotates, the positioning protrusion 7a rotates in the positioning groove 3a.

[0024] The outer edge of the reinforcing ring 7 is provided with a clamping spring 8 corresponding to each opening 4. The clamping spring 8 can enter from the opening 4 and rotate along the clamping port 5 until it fits tightly with the sealing gasket 6, thereby clamping and fixing the filter bag.

[0025] A cross-shaped reinforcing plate 12 is provided in the middle of the reinforcing ring 7, and the cross-shaped reinforcing plate 12 is fixedly connected to the inner side of the reinforcing ring 7. The cross-shaped reinforcing plate 12 is designed to facilitate the operator to grasp the reinforcing ring 7 for installation.

[0026] The top surface of the reinforcing ring 7 is equipped with multiple positioning columns 9, and a cover plate 10 is also press-fitted onto the filter basket 2. Combined Figure 1 , Figure 5 The cover plate 10 has multiple positioning holes 11 that correspond one-to-one with each positioning column 9. When installing the cover plate 10, align the positioning holes 11 with the positioning columns 9 and press it down.

[0027] The cover plate 10 is detachably connected to the filter cartridge 1. The top surface of the filter cartridge 1 is provided with multiple connecting studs 13. The cover plate 10 is provided with multiple connecting holes 14 corresponding to each connecting stud 13. The top of the connecting stud 13 is fitted with a locking nut 15.

[0028] When fixing the filter bag using this utility model, first align the reinforcing ring 7 with the receiving platform 3 and install it. Then, align the clamping spring 8 of the reinforcing ring 7 with the opening 4 and insert it. When the clamping spring 8 reaches the bottom of the opening 4, the positioning protrusion 7a on the bottom surface of the reinforcing ring 7 is inserted into the positioning groove 3a of the receiving platform 3. Then, rotate the reinforcing ring 7 clockwise. The positioning protrusion 7a rotates within the positioning groove 3a, and the clamping spring 8 rotates along the clamping opening 5 and gradually comes into close contact with the sealing gasket 6. Since the clamping spring 8 will press part of the filter bag into the clamping opening 5 together, the filter bag can be quickly fixed. After the reinforcing ring 7 is installed, as shown... Figure 4 As shown in the figure, the filter bag is not drawn. Next, install the cover plate 10, aligning the positioning hole 11 of the cover plate 10 with the positioning post 9 of the reinforcing ring 7, so that the cover plate 10 is pressed onto the filter basket 2. The positioning hole 11 can position the reinforcing ring 7 and prevent the reinforcing ring 7 from rotating in the opposite direction. During the installation of the cover plate 10, the connecting hole 14 on the cover plate 10 is also aligned with the connecting stud 13 on the top surface of the filter cartridge 1. Finally, use the locking nut 15 to screw it onto the connecting stud 13, locking the cover plate 10 onto the filter cartridge 1, completing all installation steps.

[0029] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A rotary locking filter bag fixing structure, characterized in that: The system includes a filter cartridge (1), a filter basket (2) installed inside the filter cartridge (1), and a filter bag fitted inside the filter basket (2); a receiving platform (3) is provided on the inner side of the top of the filter basket (2), and multiple spaced openings (4) are provided above the receiving platform (3), with a connecting pressing port (5) on one side of each opening (4), and a sealing gasket (6) inside the pressing port (5); a reinforcing ring (7) is installed on the receiving platform (3), and the outer edge of the reinforcing ring (7) is connected to each of the openings. (4) A one-to-one corresponding clamping spring (8), the clamping spring (8) can enter from the opening (4) and rotate along the clamping port (5) until it fits tightly with the sealing gasket (6) to clamp and fix the filter bag; the top surface of the reinforcing ring (7) is provided with multiple positioning columns (9), and the filter basket (2) is also pressed with a cover plate (10), the cover plate (10) has multiple positioning holes (11) that correspond one-to-one with each of the positioning columns (9), and the cover plate (10) is detachably connected to the filter cylinder (1).

2. The rotary locking filter bag fixing structure according to claim 1, characterized in that: The top surface of the receiving platform (3) is provided with a positioning groove (3a), and the bottom surface of the reinforcing ring (7) is provided with a positioning protrusion (7a) that cooperates with the positioning groove (3a).

3. The rotary locking filter bag fixing structure according to claim 1, characterized in that: The top of the opening (4) penetrates the top surface of the filter basket (2), and one end of the pressing port (5) is connected to the bottom of the opening (4), while the other end extends downward at an angle.

4. The rotary locking filter bag fixing structure according to claim 3, characterized in that: The sealing gasket (6) is located on the bottom and / or top surface of the compression port (5).

5. The rotary locking filter bag fixing structure according to claim 4, characterized in that: The thickness of the sealing gasket (6) gradually increases from the higher end of the compression port (5) to the lower end.

6. The rotary locking filter bag fixing structure according to claim 1, characterized in that: The reinforcing ring (7) has a cross-shaped reinforcing plate (12) in the middle, and the cross-shaped reinforcing plate (12) is fixedly connected to the inner side of the reinforcing ring (7).

7. The rotary locking filter bag fixing structure according to claim 1, characterized in that: The top surface of the filter cartridge (1) is provided with a plurality of connecting studs (13), and the cover plate (10) is provided with a plurality of connecting holes (14) corresponding one-to-one with each of the connecting studs (13). The top of the connecting studs (13) is fitted with a locking nut (15).

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