Filter cartridge sleeve improvement service cover
By improving the design of the inspection cover on the filter cartridge sleeve, the problem of difficult connection during the maintenance of traditional cartridge dust collectors has been solved, enabling fast and reliable assembly and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POTA ENVIRONMENT (SHANGHAI) LTD
- Filing Date
- 2025-07-20
- Publication Date
- 2026-06-23
AI Technical Summary
During maintenance of traditional cartridge dust collectors, the cantilever structure of one end of the cartridge support causes the other end to tilt, making it difficult to align the lead screw with the screw hole of the maintenance cover. This requires the use of tools and is time-consuming.
An improved inspection cover using a filter cartridge sleeve is adopted, which includes an inspection cover, a filter cartridge dust collector shell wall, a sealing rubber ring, a T-shaped handle, and a trumpet-shaped sleeve structure. The sleeve guide screw enters the screw hole to achieve quick connection.
It reduces the assembly time of the inspection cover, improves work efficiency, and enhances the reliability and convenience of the connection.
Smart Images

Figure CN224388280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter cartridge dust collector technology, and in particular to an improved inspection cover for filter cartridge sleeves. Background Technology
[0002] A cartridge dust collector is a dust collector that uses filter cartridges as filtration elements or employs pulse-jet cleaning. Cartridge dust collectors can be classified by installation method into inclined, side-mounted, suspended, and top-mounted types. They can also be classified by filter cartridge material into long-fiber polyester cartridge dust collectors, composite fiber cartridge dust collectors, anti-static cartridge dust collectors, flame-retardant cartridge dust collectors, membrane-coated cartridge dust collectors, and nano-cartridge dust collectors, among others.
[0003] Traditional cartridge dust collectors have a cantilevered structure at one end of the cartridge support, which causes the other end to tilt downwards at a slight angle under the pressure and gravity of the filter element. This prevents the lead screw from properly engaging with the screw hole on the maintenance cover. During routine maintenance and cartridge replacement, the connection often takes a long time and requires the use of other tools to adjust the cartridge support. A single cartridge dust collector has anywhere from 30 to over 100 cartridges, so a significant amount of time is wasted on the maintenance cover during each maintenance. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides an improved inspection cover for filter cartridge sleeves.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an improved inspection cover for a filter cartridge sleeve, comprising an inspection cover and a filter cartridge dust collector shell wall for installing the inspection cover. A filter cartridge body is installed inside the filter cartridge dust collector shell wall, and a filter cartridge support is provided inside the filter cartridge body. An inspection cover is installed at the inspection hole of the filter cartridge dust collector shell wall, and a sealing rubber ring is provided at the gap between the inspection cover and the inspection hole of the filter cartridge dust collector shell wall. A handle is fixed at the center of the inspection cover, and a screw hole is opened at one end of the handle corresponding to the filter cartridge body. A sleeve is installed at the end of the handle with the screw hole. A screw is fixed at the end of the filter cartridge support facing the inspection cover, and the screw is threadedly connected to the screw hole of the handle.
[0006] By adopting the above technical solution and using the sleeve, the capping time is reduced and work efficiency is improved.
[0007] Furthermore, the handle has a T-shaped cross-section, and the end of the handle with the screw hole has a protrusion. A rubber retaining ring is fitted on the side of the protrusion, and the outer ring of the rubber retaining ring abuts against the inner side of the sleeve.
[0008] By adopting the above technical solution, the sleeve can be easily positioned and fixed.
[0009] Furthermore, the inspection cover is equipped with two sealing rubber rings, with the larger diameter sealing rubber ring abutting against the filter cartridge dust collector shell wall, and the smaller diameter sealing rubber ring abutting against the end face of the filter cartridge body.
[0010] By adopting the above technical solutions, the reliability of the inspection cover installation is increased.
[0011] Furthermore, the surface of the inspection cover is provided with annular protrusions, and the peak of the annular protrusions extends to the inner side of the filter cartridge body.
[0012] By adopting the above technical solution, the fit between the inspection cover and the filter cartridge body is increased.
[0013] Furthermore, the handle has a plum blossom-shaped structure, and the cross-section of the end of the handle away from the screw hole has an arc-shaped structure.
[0014] By adopting the above technical solution, it is easy to inspect and repair the entire cover by rotating and disassembling it.
[0015] Furthermore, the sleeve has an overall trumpet-shaped structure, with the smaller end of the sleeve facing the inspection cover and the larger end of the sleeve facing the filter cartridge body.
[0016] By adopting the above technical solution, it is easy to guide the screw installation.
[0017] In summary, this utility model has the following beneficial effects:
[0018] In this application, a flared sleeve is installed on the side of the inspection cover facing the filter cartridge body, with the small end of the sleeve abutting the protruding part of the handle and the large end of the sleeve facing the screw of the filter cartridge body. By connecting the inspection cover to the inspection hole on the filter cartridge dust collector shell wall, the screw of the filter cartridge support is guided by the flared sleeve to accurately slide into the screw hole of the handle, realizing the quick connection between the inspection cover and the filter cartridge body. Compared with the traditional inspection cover, due to the optimized sleeve structure at the connection, the screw of the filter cartridge support automatically slides into the screw hole of the handle when assembling the inspection cover, which greatly reduces the cover installation time and improves work efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0020] Figure 2 This is a schematic diagram showing the installation status of the improved inspection cover and filter cartridge body;
[0021] Figure 3 This is a schematic diagram showing the installation status of the traditional inspection cover and the filter cartridge body;
[0022] Figure 4 This is a sectional view of the inspection cover according to an embodiment of the present utility model;
[0023] Figure 5 This is a schematic diagram of the inspection cover structure according to an embodiment of the present utility model;
[0024] Figure 6 This is a cross-sectional view of the sleeve according to an embodiment of the present utility model.
[0025] In the diagram: 1. Filter cartridge dust collector shell wall; 2. Filter cartridge body; 3. Filter cartridge support; 4. Inspection cover; 5. Screw; 6. Handle; 7. Sleeve; 8. Screw hole; 9. Sealing rubber ring; 10. Protruding part; 11. Rubber retaining ring. Detailed Implementation
[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0027] like Figure 1-6 As shown in the embodiment of this application, an improved inspection cover for a filter cartridge sleeve is disclosed, including an inspection cover 4 and a filter cartridge dust collector shell wall 1 for installing the inspection cover 4. A filter cartridge body 2 is installed inside the filter cartridge dust collector shell wall 1, and a filter cartridge support 3 is provided inside the filter cartridge body 2. An inspection cover 4 is installed at the inspection hole of the filter cartridge dust collector shell wall 1, and a sealing rubber ring 9 is provided at the gap between the inspection cover 4 and the inspection hole of the filter cartridge dust collector shell wall 1. A handle 6 is fixed at the center of the inspection cover 4, and one end of the handle 6 is opened corresponding to the filter cartridge body 2. The handle 6 has a screw hole 8, and a sleeve 7 is installed at the end of the handle 6 with the screw hole 8. A screw 5 is fixed at the end of the filter cartridge support 3 facing the inspection cover 4, and the screw 5 is threadedly connected to the screw hole 8 of the handle 6. The handle 6 and the inspection cover 4 are interference-fitted, making them a single unit, which facilitates quick installation and removal of the inspection cover 4. In a traditional inspection cover 4 without a sleeve 7, the end of the filter cartridge body 2 with the screw 5 will tilt downwards under the pressure and gravity of the filter element, causing it to misalign with the screw hole 8 of the handle 6 (see reference). Figure 3 ).
[0028] The handle 6 has a T-shaped cross-section, and the end of the handle 6 with the screw hole 8 is provided with a protrusion 10. A rubber retaining ring 11 is fitted on the side of the protrusion 10, and the outer ring of the rubber retaining ring 11 abuts against the inner side of the sleeve 7. This structure makes it easy to position and fix the sleeve 7.
[0029] The inspection cover 4 is provided with two sealing rubber rings 9. The sealing rubber ring 9 with a larger diameter abuts against the filter cartridge dust collector shell wall 1, and the sealing rubber ring 9 with a smaller diameter abuts against the end face of the filter cartridge body 2. This structure makes it easy to reliably install the inspection cover 4 and the filter cartridge dust collector shell wall 1.
[0030] The surface of the inspection cover 4 is provided with an annular protrusion, and the peak of the annular protrusion extends to the inner side of the filter cartridge body 2. This structure increases the fit between the inspection cover 4 and the filter cartridge body 2.
[0031] The handle 6 has a plum blossom-shaped structure, and the cross-section of the end of the handle 6 away from the screw hole 8 is arc-shaped. This structure makes it easy to rotate the maintenance cover 4 and meets the needs of loading and unloading the maintenance cover 4.
[0032] The sleeve 7 has a trumpet-shaped structure, with the small end of the sleeve 7 facing the inspection cover 4 and the large end of the sleeve 7 facing the filter cartridge body 2. This structure allows the sleeve 7 to guide the screw 5 and increases the installation efficiency of the inspection cover 4.
[0033] The working principle of the improved inspection cover for the filter cartridge sleeve in this embodiment is as follows: by connecting the inspection cover 4 to the inspection hole of the filter cartridge dust collector shell 1, the screw 5 of the filter cartridge support 3 is guided by the trumpet-shaped sleeve 7 to accurately slide into the screw hole 8 of the handle 6. As the inspection cover 4 rotates as a whole, the screw hole 8 of the handle 6 is threadedly connected to the screw 5 of the filter cartridge support 3, realizing the quick connection between the inspection cover 4 and the filter cartridge body 2, which greatly reduces the cover installation time and improves work efficiency.
[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. An improved inspection cover for a filter cartridge sleeve, comprising an inspection cover (4) and a filter cartridge dust collector shell wall (1) for mounting the inspection cover (4), characterized in that: The filter cartridge body (2) is installed inside the filter cartridge dust collector shell wall (1), and the filter cartridge support (3) is provided inside the filter cartridge body (2). The inspection hole of the filter cartridge dust collector shell wall (1) is equipped with an inspection cover (4), and a sealing rubber ring (9) is provided at the gap between the inspection cover (4) and the inspection hole of the filter cartridge dust collector shell wall (1). A handle (6) is fixed at the center of the inspection cover (4), and a screw hole (8) is opened at one end of the handle (6) corresponding to the filter cartridge body (2). A sleeve (7) is installed at the end of the handle (6) with the screw hole (8). A screw rod (5) is fixed at the end of the filter cartridge support (3) facing the inspection cover (4), and the screw rod (5) is threadedly connected to the screw hole (8) of the handle (6).
2. The improved inspection cover for the filter cartridge sleeve according to claim 1, characterized in that: The handle (6) has a T-shaped cross section, and the end of the handle (6) with the screw hole (8) is provided with a protrusion (10). A rubber retaining ring (11) is fitted on the side of the protrusion (10), and the outer ring of the rubber retaining ring (11) abuts against the inner side of the sleeve (7).
3. The improved inspection cover for the filter cartridge sleeve according to claim 1, characterized in that: The inspection cover (4) is provided with two sealing rubber rings (9), and the sealing rubber ring (9) with a larger diameter abuts against the filter cartridge dust collector shell wall (1), while the sealing rubber ring (9) with a smaller diameter abuts against the end face of the filter cartridge body (2).
4. The improved inspection cover for the filter cartridge sleeve according to claim 1, characterized in that: The surface of the inspection cover (4) is provided with an annular protrusion, and the peak of the annular protrusion extends to the inside of the filter cartridge body (2).
5. The improved inspection cover for the filter cartridge sleeve according to claim 1, characterized in that: The handle (6) has a plum blossom-shaped structure, and the cross-section of the end of the handle (6) away from the screw hole (8) is arc-shaped.
6. The improved inspection cover for the filter cartridge sleeve according to claim 1, characterized in that: The sleeve (7) is a trumpet-shaped structure, with the small end of the sleeve (7) facing the inspection cover (4) and the large end of the sleeve (7) facing the filter cartridge body (2).