Anti-loosening filter cartridge mounting structure and filter cartridge type dust remover

Abstract

According to the anti-loosening filter cartridge mounting structure and the filter cartridge type dust remover, a filter cartridge comprises a filter main body and a connector arranged at one end of the filter main body, and a plurality of clamping grooves are formed in the peripheral wall of the connector in the circumferential direction; the filter cartridge is connected with the buckling part of the pattern plate in a clamping manner through the clamping groove of the connector; the clamping groove sequentially comprises a first inclined surface, a locking surface and a second inclined surface, and the locking surface and the second inclined surface form a buckling contact surface, so that the buckling part of the pattern plate and the filter cartridge form a self-locking structure through the buckling contact surface. The utility model further discloses a filter cartridge type dust collector comprising the anti-loosening filter cartridge mounting structure. According to the utility model, the self-locking anti-loosening effect can be realized, so that the self-locking of the filter cartridge is firm, the loosening risk in the pulse process is avoided, and the structural stability of the filter cartridge is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of filter cartridge installation technology, and in particular to an anti-loosening filter cartridge installation structure and a filter cartridge dust collector. Background Technology

[0002] A cartridge dust collector is a type of filtration dust collector. Its working principle is mainly based on the sudden expansion of the airflow cross-section when dust-laden gas enters the dust collector housing. Some of the larger dust particles in the airflow fall directly into the ash hopper without passing through the filter cartridge under the action of gravity and inertia. The remaining fine and low-density dust particles are carried by the airflow to the filter cartridge. Under the combined effects of Brown diffusion and sieving, they are blocked outside the filter cartridge by the filter media. Under the action of the fan, the clean gas is discharged from the inside of the filter cartridge to the air outlet, and the accumulated dust falls into the ash hopper and is transferred, thereby achieving the purpose of dust removal.

[0003] CN 219399412U discloses a filter cartridge mounting structure. The filter cartridge has a snap-fit ​​state and an unlocked state. In the snap-fit ​​state, at least a portion of the connector is inserted into the connecting hole, and the snap-fit ​​part and the slot engage to connect the filter cartridge and the tube sheet. In the unlocked state, the snap-fit ​​part is located in a first clearance channel, allowing the connector to detach from the tube sheet. The filter cartridge can rotate circumferentially to switch between the snap-fit ​​and unlocked states, achieving rapid assembly and disassembly of the filter cartridge and the tube sheet, improving assembly and disassembly efficiency, and facilitating filter cartridge maintenance and replacement. However, the snap-fit ​​part in this patent is prone to loosening and detaching in the first clearance channel, making it difficult to guarantee the stability of the filter cartridge installation. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art and provide a simple, self-locking, and highly stable anti-loosening filter cartridge installation structure and a filter cartridge dust collector containing the anti-loosening filter cartridge installation structure.

[0005] The technical solution of this utility model is:

[0006] This utility model discloses an anti-loosening filter cartridge installation structure. The filter cartridge includes a filter body and a connector at one end of the filter body. The outer peripheral wall of the connector is provided with multiple slots along the circumferential direction. The filter cartridge is engaged with the snap-fit ​​part of the tube sheet through the slots of the connector. The slots sequentially include a first inclined surface, a locking surface, and a second inclined surface. The locking surface and the second inclined surface form a snap-fit ​​contact surface, so that the snap-fit ​​part of the tube sheet forms a self-locking structure with the filter cartridge through the snap-fit ​​contact surface.

[0007] Furthermore, the first inclined surface is tilted from the starting point of the locking surface toward the buckle entrance end to guide the buckle in, the locking surface is horizontally set, and the second inclined surface is tilted from the ending point of the locking surface toward the buckle locking end.

[0008] Furthermore, the inclination angle of the first inclined plane is greater than that of the second inclined plane.

[0009] Furthermore, the connector has an annular connecting portion on its outer peripheral wall, which divides the connector into an upper connecting portion and a lower connecting portion, and the slot is provided on either the upper connecting portion or the lower connecting portion on its outer peripheral wall.

[0010] Furthermore, the outer peripheral wall of the connector is provided with a plurality of protrusions spaced apart, and the slots are formed between adjacent protrusions. The slots form a clearance channel in the part located between adjacent protrusions.

[0011] Furthermore, the space between the first inclined surface of the slot and the outer peripheral wall of the connector between the annular connecting part forms a buckle inlet end, and the space between the second inclined surface of the slot and the outer peripheral wall of the connector between the annular connecting part forms a buckle locking end.

[0012] Furthermore, the outer peripheral wall of the connector is provided with 6 to 8 sets of slots along the circumferential direction.

[0013] Furthermore, the connector has an annular snap-fit ​​interface on its inner peripheral wall, and the inner wall of the annular snap-fit ​​interface has at least two outwardly protruding snap-fit ​​parts along the circumferential direction.

[0014] One of the present inventions is a cartridge dust collector, which includes the anti-loosening cartridge installation structure according to any one of the preceding claims.

[0015] Furthermore, the filter cartridge is composed of multiple modular filter sections connected together, and the connection points of adjacent modular filter sections are respectively provided with snap-fit ​​grooves and snap-fit ​​protrusions, so that adjacent modular filter sections are snapped together as one unit.

[0016] The beneficial effects of this utility model are:

[0017] By designing a slot structure with a first inclined surface, a locking surface, and a second inclined surface, a self-locking and anti-loosening effect can be achieved, making the filter cartridge firmly self-locked, avoiding the risk of loosening during the pulse process, and improving the structural stability of the filter cartridge.

[0018] The cartridge dust collector of this utility model, due to the adoption of the above-mentioned cartridge installation structure, can achieve the self-locking and anti-loosening effect of the cartridge, and has high disassembly and assembly efficiency, making it convenient for the maintenance and replacement of the cartridge; and by designing the cartridge as a structure in which multiple modular filter sections interlock, it can achieve flexible splicing and stable connection of the cartridge, reduce maintenance costs, and greatly improve the flexibility and service life of the cartridge. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the filter cartridge of Embodiment 1 of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the connector of Embodiment 1 of this utility model;

[0021] Figure 3 This is a partial cross-sectional view of the connector in Embodiment 1 of this utility model;

[0022] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in Embodiment 1 is shown;

[0023] Figure 5 This is a schematic diagram of the filter cartridge structure with different assembly methods in Embodiment 2 of this utility model.

[0024] Explanation of reference numerals in the attached diagram:

[0025] 1. Filter body; 2. Connector; 3. Modular filter section; 21. Slot; 22. Protrusion; 23. Annular connecting part; 24. First reinforcing member; 25. Second reinforcing member; 26. Annular snap-fit ​​interface; 210. Locking surface; 211. First inclined surface; 212. Second inclined surface; 213. Snap-fit ​​contact surface; 214. Snap-fit ​​inlet end; 215. Snap-fit ​​locking end; 216. Clearance channel; 261. Snap-fit ​​component. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] like Figures 1-4 As shown: An anti-loosening filter cartridge installation structure, wherein the filter cartridge includes a filter body 1 and a connector 2 located at one end of the filter body. The outer peripheral wall of the connector 2 is provided with a plurality of slots 21 along the circumferential direction. The filter cartridge is engaged with the snap-fit ​​part of the tube sheet through the slots 21 of the connector.

[0029] The perforated plate in this embodiment can refer to the perforated plate structure disclosed in the prior art CN219399412U, that is, the perforated plate is provided with a vertically penetrating connecting hole and a buckling part located on the hole wall of the connecting hole. There are multiple buckling parts, which are spaced apart along the circumference of the connecting hole, and the buckling parts are protruding structures.

[0030] In this embodiment, multiple protrusions 22 are spaced apart on the outer peripheral wall of the connector 2, and a slot 21 is formed between adjacent protrusions 22. The slot 21 includes a first inclined surface 211, a locking surface 210, and a second inclined surface 212. The locking surface 210 and the second inclined surface 212 form a snap-fit ​​contact surface 213, that is, the snap-fit ​​part of the tube sheet forms a self-locking structure with the filter cartridge through the snap-fit ​​contact surface 213. Among them, the first inclined surface 211 is inclined from the starting point of the locking surface 210 towards the snap-fit ​​inlet end 214 to guide the snap-fit ​​in; the locking surface 210 is horizontally set; the second inclined surface 212 is inclined from the ending point of the locking surface 210 towards the snap-fit ​​locking end 215 to achieve a self-locking and anti-loosening effect, so that the filter cartridge is firmly self-locked and avoids the risk of loosening during the pulse process. The inclination angle of the first inclined surface 211 is greater than the inclination angle of the second inclined surface 212, so that the snap-fit ​​part of the tube sheet can easily enter the slot 21 and lock, and also facilitates reverse unlocking.

[0031] The following is a preferred embodiment of the connector structure:

[0032] like Figure 2 As shown: The outer peripheral wall of the connector 2 is provided with an annular connecting portion 23, which divides the connector 2 into an upper connecting portion and a lower connecting portion. The slot 21 can be provided on either the outer peripheral wall of the upper connecting portion or the lower connecting portion. For example, in this embodiment, the slot 21 is provided on the outer peripheral wall of the lower connecting portion. The slot 21 forms an avoidance channel 216 in the part located between adjacent protrusions 22. The space of the outer peripheral wall of the connector between the snap-fit ​​contact surface 213 of the slot 21 and the annular connecting part 23 forms a self-locking structure space of the tube sheet. That is, the space of the outer peripheral wall of the connector between the first inclined surface 211 of the slot and the annular connecting part 23 forms a snap-fit ​​inlet end 214. The space of the outer peripheral wall of the connector between the locking surface 210 of the slot and the annular connecting part 23 forms a snap-fit ​​movement transition space. The space of the outer peripheral wall of the connector between the second inclined surface 212 of the slot and the annular connecting part 23 forms a snap-fit ​​locking end 215. This allows each snap-fit ​​part of the tube sheet to move from its corresponding avoidance channel 216 to the snap-fit ​​inlet end 214, and then move from the snap-fit ​​inlet end 214 along the snap-fit ​​movement transition space to the snap-fit ​​locking end 215 to lock. After the tube sheet and the filter cartridge self-lock, the tube sheet abuts against the lower surface of the annular connecting part 23.

[0033] This embodiment preferably designs 6 to 8 sets of slots 21, which can greatly shorten the rotation stroke during installation, further reduce the installation difficulty, and enable manual installation.

[0034] The upper connecting portion of connector 2 has a plurality of first reinforcing members 24 spaced apart on its outer peripheral wall. These first reinforcing members 24 connect between the outer peripheral wall of the upper connecting portion of connector 2 and the upper surface of the annular connecting portion 23. The upper connecting portion of connector 2 has a plurality of second reinforcing members 25 spaced apart on its inner peripheral wall. An annular locking interface 26 is provided on the inner peripheral wall of connector 2, and the second reinforcing members 25 connect between the inner peripheral wall of the upper connecting portion of connector 2 and the upper surface of the annular locking interface 23. Preferably, both the first reinforcing members 24 and the second reinforcing members 25 are triangular reinforcing plates.

[0035] The inner wall of the annular snap-fit ​​interface 26 is provided with a plurality of outwardly protruding snap-fit ​​pieces 261 along the circumferential direction. The snap-fit ​​pieces 261 are used to engage with the nozzles on the filter body 1. That is, the filter body 1 is also provided with a nozzle at the end with the connector 2 for guiding and amplifying the airflow during dust removal and backflushing of the filter body. The nozzle extends from the annular snap-fit ​​interface 26 and engages with the snap-fit ​​pieces 261. The snap-fit ​​pieces 261 preferably include an outwardly protruding arc-shaped surface, a beveled surface, and a connecting surface connecting the arc-shaped surface and the beveled surface, which are adapted to engage with the nozzle.

[0036] The working principle of this embodiment is as follows: the filter body 1 and the connector 2 are coaxially arranged, and the filter body 1 is installed in the inner cavity of the lower connecting part of the connector 2. The filter body 1 is passed through the connecting hole of the tube sheet, and then the clearance channel 216 of the lower connecting part of the connector 2 is aligned with the snap-fit ​​part of the tube sheet. The lower connecting part of the connector 2 is axially inserted into the connecting hole of the tube sheet. Then, the entire filter cartridge is rotated circumferentially, so that the snap-fit ​​part of the tube sheet is snapped into the slot from the snap-fit ​​inlet end 214 of the slot 21, and screwed into the snap-fit ​​locking end 215 to lock it, thus realizing the installation of the filter cartridge and the tube sheet. Through the cooperation of the first inclined surface 211, the locking surface 210 and the second inclined surface 212, the filter cartridge is self-locking and secure, avoiding the risk of loosening during the pulse process. When replacing the filter cartridge, the filter cartridge is manually rotated in the reverse direction. Since the force provided by the manual force is greater than that of the friction pair, the filter cartridge can be unlocked smoothly.

[0037] Example 2

[0038] This embodiment provides a cartridge dust collector, including the anti-loosening cartridge installation structure described in Embodiment 1, which can achieve the self-locking and anti-loosening effect of the cartridge, and has high disassembly and assembly efficiency, making it convenient for the maintenance and replacement of the cartridge.

[0039] The filter cartridge in this embodiment can be a one-piece filter structure or composed of multiple modular filter sections 3 connected together. Preferably, the filter cartridge is composed of at least two modular filter sections 3 connected together, and the connection points of adjacent modular filter sections are respectively provided with snap-fit ​​grooves and snap-fit ​​protrusions, so that adjacent modular filter sections 3 are snapped together as a whole, thereby realizing flexible splicing and stable connection of the filter cartridge, reducing maintenance costs, and greatly improving the flexibility and service life of the filter cartridge. Figure 5As shown, this embodiment can design modular filter sections 3 of different or the same length. A connector 2 is provided at the top of the filter cartridge, and an end cap is provided at the bottom. The middle section can be a single modular filter section or multiple modular filter sections that are snapped together to form filter cartridges of different specifications.

[0040] In summary, this utility model, on the one hand, achieves a self-locking and anti-loosening effect by designing a slot structure with a first inclined surface, a locking surface, and a second inclined surface, making the filter cartridge securely self-locked, avoiding the risk of loosening during the pulse process, and improving the structural stability of the filter cartridge; on the other hand, by designing the filter cartridge as a structure in which multiple modular filter sections interlock, the splicing speed can be greatly improved, maintenance costs can be reduced, and the length of each modular filter section can be the same or different, greatly improving assembly flexibility and connection stability.

[0041] Furthermore, the term "connection" should be interpreted broadly, for example, it can include fixed connections, detachable connections, or integral connections; it can include direct connections or indirect connections through an intermediate medium, and it can also include internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A kind of anti-loosening filter cartridge mounting structure, filter cartridge includes filter main body and the connecting head of filter main body one end, the outer wall of the connecting head is provided with multiple clamping slots along the circumference direction;The filter cartridge is connected with the buckle part of flower board by the clamping slot of connecting head;Its characterized in that, The slot includes a first inclined surface, a locking surface, and a second inclined surface in sequence. The locking surface and the second inclined surface form a snap-fit ​​contact surface, so that the snap-fit ​​part of the tube sheet forms a self-locking structure with the filter cartridge through the snap-fit ​​contact surface.

2. The anti -unscrewing filter cartridge mounting structure according to claim 1, characterized by The first inclined surface is tilted from the starting point of the locking surface toward the buckle entrance end to guide the buckle in. The locking surface is horizontally set. The second inclined surface is tilted from the ending point of the locking surface toward the buckle locking end.

3. The anti-loose filter cartridge mounting structure according to claim 1 or 2, characterized by, The inclination angle of the first inclined plane is greater than that of the second inclined plane.

4. The anti -unscrewing filter cartridge mounting structure according to claim 2, characterized by The connector has an annular connecting portion on its outer peripheral wall, which divides the connector into an upper connecting portion and a lower connecting portion. The slot is provided on either the outer peripheral wall of the upper connecting portion or the lower connecting portion.

5. The anti-loose filter cartridge mounting structure according to claim 1 or 2, characterized by, The outer peripheral wall of the connector is provided with a plurality of protrusions spaced apart, and the slots are formed between adjacent protrusions. The slots form a clearance channel in the part located between adjacent protrusions.

6. The anti -unscrewing filter cartridge mounting structure according to claim 4, characterized by The space between the first inclined surface of the slot and the outer peripheral wall of the connector head between the annular connecting part forms the buckle inlet end, and the space between the second inclined surface of the slot and the outer peripheral wall of the connector head between the annular connecting part forms the buckle locking end.

7. The anti-loose filter cartridge mounting structure according to claim 1 or 2, characterized by The outer peripheral wall of the connector is provided with 6 to 8 sets of slots along the circumferential direction.

8. The anti -unscrewing filter cartridge mounting structure according to claim 1 or 2, characterized by The connector has an annular snap-fit ​​interface on its inner circumferential wall, and the inner wall of the annular snap-fit ​​interface has at least two outwardly protruding snap-fit ​​parts along the circumferential direction.

9. A filter cartridge dust collector characterized by, Includes the anti-loosening filter cartridge installation structure according to any one of claims 1 to 8.

10. The filter cartridge dust collector of claim 9, wherein, The filter cartridge is composed of multiple modular filter sections connected together. The connection points of adjacent modular filter sections are respectively provided with snap-fit ​​grooves and snap-fit ​​protrusions, and adjacent modular filter sections are snapped together as one unit.

Images