Spark-free high-pressure centrifugal fan

Abstract

The utility model relates to the technical field of centrifugal fans, in particular to a spark-free high-pressure centrifugal fan, which mainly comprises a centrifugal machine body provided with a filter screen, and further comprises a quick release component arranged on the centrifugal machine body and comprising a fixing plate and a mounting seat, the mounting seat is arranged on the centrifugal machine body, and the filter screen is arranged on the fixing plate. A fixing ring is arranged on the mounting seat, a fixing groove is formed in the fixing ring, a locking plate is arranged on the mounting seat, and the fixing plate is arranged on the filter screen. According to the non-spark type high-pressure centrifugal fan, by pulling a pulling plate, a locking plate is separated from the interior of a fixing groove, then a fixing ring can be driven to be separated from the interior of a containing groove through the elastic force of a torsional spring, a worker can detach the fixing plate from an air inlet in the centrifugal machine body, and the practicability is high. And a worker can improve the dismounting efficiency of the filter screen, so that the worker can conveniently transfer the filter screen to other places for cleaning.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal fan technology, specifically a sparkless high-pressure centrifugal fan. Background Technology

[0002] In high-risk industries such as petrochemicals, coal mining, gas transmission, and military manufacturing, traditional fans may cause explosions due to mechanical friction, electrical sparks, or static electricity accumulation, resulting in significant casualties and property damage. Spark-free high-pressure centrifugal fans, by eliminating mechanical and electrical ignition sources, have become the core equipment of ventilation systems in high-risk locations. Their design must meet international standards such as "Explosion-proof Electrical Apparatus for Explosive Atmospheres" to ensure zero-risk operation under extreme conditions, directly responding to the industry's urgent need for intrinsically safe equipment.

[0003] When using a centrifugal fan, a filter screen is usually installed at the air inlet to prevent impurities from entering the fan through the air inlet. This filters out impurities and effectively protects the centrifugal fan. However, after a period of use, the filter screen will accumulate a lot of impurities, so operators need to disassemble and clean it regularly.

[0004] However, since the filter screen is usually fixed with bolts and flanges, when the staff needs to disassemble and clean the filter screen, they need to use special tools to remove the bolts first, which affects the cleaning efficiency of the staff and may affect the use of the centrifuge. Utility Model Content

[0005] The purpose of this invention is to provide a sparkless high-pressure centrifugal fan to solve the problem of the troublesome cleaning of the filter screen mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sparkless high-pressure centrifugal fan, comprising: a centrifuge body, on which a filter screen is disposed; and a quick-release assembly, disposed on the centrifuge body, comprising a fixing plate and a mounting base, the mounting base being disposed on the centrifuge body, the mounting base having a fixing ring and a fixing groove, and a locking plate, the fixing plate being disposed on the filter screen; and a guide assembly, disposed on the mounting base, comprising a limiting post and a placement groove, the limiting post being disposed on the fixing plate, and the placement groove being disposed on the mounting base; the guide assembly being used for guiding the installation of the filter screen.

[0007] Preferably, the quick-release assembly further includes a rotating component disposed on one side of the mounting base, wherein a rotating column is rotatably disposed on the rotating component, and a retaining ring is disposed on the outside of the rotating column.

[0008] Preferably, a circular groove is provided on the side of the rotating component near the fixed ring, and a torsion spring is provided between the fixed ring and the circular groove, with the torsion spring located on the outside of the rotating column.

[0009] Preferably, two sets of storage slots are symmetrically arranged on one side of the mounting base, and elastic elements are provided inside the storage slots. A pull plate is provided on one side of the elastic elements, and a locking plate is provided on the pull plate on the side close to the mounting base.

[0010] Preferably, the mounting base has a through groove corresponding to the locking plate, and the locking plate is movably disposed in the through groove.

[0011] Preferably, a connecting plate is provided on one side of the fixing ring, and a fixing groove is provided on the connecting plate, which matches the locking plate.

[0012] Preferably, the guide assembly also includes three sets of limiting posts evenly arranged on the side of the fixing plate near the mounting base, and three sets of limiting holes symmetrically arranged inside the placement groove, with the limiting posts and limiting holes matching each other.

[0013] Preferably, two sets of grooves are symmetrically arranged on the fixed plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When the filter needs to be removed, the staff pulls the pull plate to disengage the locking plate from the fixing groove. Then, the spring force of the torsion spring can drive the fixing ring to disengage from the placement groove, allowing the staff to remove the fixing plate from the air inlet on the centrifuge body. This improves the efficiency of filter removal and makes it easier for the staff to move the filter to other places for cleaning.

[0016] To improve the installation efficiency after cleaning the filter, the limiting post is inserted into the limiting hole to prevent incorrect installation of the front and back of the filter, thus ensuring smooth installation. The placement groove facilitates the fixing ring to secure the filter. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This utility model Figure 2Another perspective structural diagram;

[0021] Figure 5 For the present utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0022] In the diagram: 1. Centrifuge body; 2. Mounting base; 3. Fixing plate; 4. Filter screen; 5. Fixing ring; 6. Connecting plate; 7. Pull groove; 8. Rotating component; 9. Torsion spring; 10. Rotating column; 11. Fixing groove; 12. Locking plate; 13. Pull plate; 14. Elastic component; 15. Storage groove; 16. Limiting column; 17. Limiting hole; 18. Placement groove; 19. Through groove; 20. Circular groove. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] like Figure 1 - Figure 5 As shown, this application provides a sparkless high-pressure centrifugal fan, including: a centrifuge body 1, a filter screen 4 disposed on the centrifuge body 1, and a quick-release assembly disposed on the centrifuge body 1. The quick-release assembly includes a fixing plate 3 and a mounting base 2. The mounting base 2 is disposed on the centrifuge body 1, and a fixing ring 5 is disposed on the mounting base 2. The fixing ring 5 is disposed on the fixing groove 11, and a locking plate 12 is disposed on the mounting base 2. The fixing plate 3 is disposed on the filter screen 4. The quick-release assembly is used for quick disassembly of the filter screen 4.

[0026] Specifically, such as Figure 3 As shown, the quick-release assembly also includes a rotating component 8 disposed on one side of the mounting base 2. A rotating column 10 is rotatably disposed on the rotating component 8, and a fixing ring 5 is disposed on the outside of the rotating column 10. Through the cooperation between the rotating component 8 and the rotating column 10, the fixing ring 5 can be connected to the mounting base 2.

[0027] Specifically, such as Figure 3As shown, a circular groove 20 is provided on the side of the rotating part 8 near the fixed ring 5. A torsion spring 9 is provided between the fixed ring 5 and the circular groove 20. The torsion spring 9 is located on the outside of the rotating column 10. Through the elastic force of the torsion spring 9, the fixed ring 5 can be driven back to its original position when the filter screen 4 is disassembled.

[0028] Specifically, such as Figure 5 As shown, two sets of storage slots 15 are symmetrically arranged on one side of the mounting base 2. An elastic element 14 is provided inside the storage slot 15. A pull plate 13 is provided on one side of the elastic element 14. A locking plate 12 is provided on the pull plate 13 on the side close to the mounting base 2. Through the elastic force of the elastic element 14, the locking plate 12 can be driven into the fixing slot 11.

[0029] Specifically, such as Figure 5 As shown, the mounting base 2 is provided with a through groove 19 corresponding to the locking plate 12. The locking plate 12 is movably disposed in the through groove 19. With the cooperation of the through groove 19, the locking plate 12 can be easily inserted into the fixing groove 11.

[0030] Specifically, such as Figure 5 As shown, a connecting plate 6 is provided on one side of the fixing ring 5, and a fixing groove 11 is provided on the connecting plate 6. The fixing groove 11 matches the locking plate 12. Through the cooperation of the fixing groove 11 and the locking plate 12, the fixing ring 5 can be fixed.

[0031] The mounting base 2 is provided with a guide assembly, which includes a limiting post 16 and a placement groove 18. The limiting post 16 is set on the fixing plate 3, and the placement groove 18 is set on the mounting base 2. The guide assembly is used to guide the installation of the filter screen 4.

[0032] Specifically, such as Figure 3 As shown, the guide assembly also includes three sets of limiting posts 16 evenly arranged on the side of the fixing plate 3 near the mounting base 2, and three sets of limiting holes 17 symmetrically arranged inside the placement groove 18. The limiting posts 16 and the limiting holes 17 are matched. Through the cooperation of the limiting holes 17 and the limiting posts 16, it is easy to fix the installation position of the filter screen 4.

[0033] Specifically, such as Figure 3 As shown, two sets of pull grooves 7 are symmetrically arranged on the fixing plate 3. The pull grooves 7 make it easy for the staff to remove the filter screen 4 from the placement groove 18.

[0034] In this embodiment: When disassembling the filter screen 4, the worker pulls the pull plate 13, thereby causing the locking plate 12 to disengage from the fixing groove 11. At this time, the elastic force of the torsion spring 9 can drive the fixing ring 5 to rotate, thereby releasing the filter screen 4, which makes it easier for the worker to disassemble the filter screen 4 and move it to another place for cleaning. After cleaning the filter screen 4, in order to ensure that the filter screen 4 is installed accurately, the three sets of limiting posts 16 are inserted into the corresponding limiting holes 17, so that the front and back of the filter screen 4 can be installed accurately. The placement groove 18 allows the worker to take the filter screen 4 and place it in the placement groove 18.

[0035] Specifically, when the filter screen 4 needs to be disassembled and cleaned, since the locking plate 12 is initially stuck in the fixing groove 11, the worker can pull the pull plate 13 to disengage the locking plate 12 from the fixing groove 11. At this time, the elastic force of the torsion spring 9 can rotate the fixing ring 5, causing the fixing ring 5 to disengage from the placement groove 18, thus facilitating the worker's disassembly of the filter screen 4. The pull groove 7 then allows the worker to easily retrieve the filter screen 4, making it easy to transfer it to another location. After cleaning... When installing the filter screen 4, the groove 7 makes it easy for the staff to pick up the filter screen 4. Then, by inserting the three sets of limiting posts 16 into the limiting holes 17, the filter screen 4 can be pre-positioned, which makes it easy for the staff to fix the filter screen 4. At this time, the staff controls the fixing ring 5 to rotate into the placement groove 18. At this time, the fixing groove 11 and the locking plate 12 are aligned. The staff releases the pull plate 13, and the elastic force of the elastic element 14 can drive the locking plate 12 into the fixing groove 11, thereby fixing the filter screen 4.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in detail for the sake of brevity.

[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sparkless high-pressure centrifugal fan, comprising: A centrifuge body (1), wherein a filter screen (4) is provided on the centrifuge body (1), characterized in that it further includes: The quick-release assembly is set on the centrifuge body (1). The quick-release assembly includes a fixing plate (3) and a mounting base (2). The mounting base (2) is set on the centrifuge body (1). The mounting base (2) is provided with a fixing ring (5). The fixing ring (5) is provided with a fixing groove (11). The mounting base (2) is provided with a locking plate (12). The fixing plate (3) is set on the filter screen (4). The quick-release assembly is used for the quick disassembly of the filter screen (4). A guide assembly is provided on the mounting base (2). The guide assembly includes a limiting post (16) and a placement groove (18). The limiting post (16) is provided on the fixing plate (3), and the placement groove (18) is provided on the mounting base (2). The guide assembly is used for guiding the installation of the filter screen (4).

2. The sparkless high-pressure centrifugal fan according to claim 1, characterized in that, The quick-release assembly also includes a rotating component (8) disposed on one side of the mounting base (2), on which a rotating column (10) is rotatably disposed, and the fixing ring (5) is disposed on the outside of the rotating column (10).

3. A sparkless high-pressure centrifugal fan according to claim 2, characterized in that, A circular groove (20) is provided on the side of the rotating component (8) near the fixed ring (5), and a torsion spring (9) is provided between the fixed ring (5) and the circular groove (20). The torsion spring (9) is located on the outside of the rotating column (10).

4. A sparkless high-pressure centrifugal fan according to claim 1, characterized in that, Two sets of storage slots (15) are symmetrically arranged on one side of the mounting base (2). An elastic element (14) is provided inside the storage slot (15). A pull plate (13) is provided on one side of the elastic element (14). The locking plate (12) is provided on the pull plate (13) on the side close to the mounting base (2).

5. A sparkless high-pressure centrifugal fan according to claim 1, characterized in that, The mounting base (2) is provided with a through groove (19) corresponding to the locking plate (12), and the locking plate (12) is movably disposed in the through groove (19).

6. A sparkless high-pressure centrifugal fan according to claim 5, characterized in that, A connecting plate (6) is provided on one side of the fixing ring (5), and a fixing groove (11) is provided on the connecting plate (6). The fixing groove (11) matches the locking plate (12).

7. A sparkless high-pressure centrifugal fan according to claim 1, characterized in that, The guide assembly also includes three sets of limiting posts (16) evenly arranged on the side of the fixing plate (3) near the mounting base (2), and three sets of limiting holes (17) symmetrically arranged inside the placement groove (18), with the limiting posts (16) matching the limiting holes (17).

8. A sparkless high-pressure centrifugal fan according to claim 1, characterized in that, Two sets of grooves (7) are symmetrically arranged on the fixing plate (3).

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