Filtering structure for centrifugal fan

Abstract

The filtering structure for the centrifugal fan comprises the fan, an air pipe is arranged on the outer surface of one side of the fan, a first fixing frame is arranged on the outer surface of the upper end of the air pipe, a filtering assembly is arranged at the upper end of the first fixing frame, and a mounting and dismounting mechanism is arranged on the outer surface of one side of the filtering assembly. The mounting and dismounting mechanism comprises a second fixing frame, a guide groove, a fixing plate, an air cylinder, a connecting plate, a guide rod, an inserting plate, an inserting groove, a sealing groove and a sealing ring, the second fixing frame is fixedly mounted on the outer surface of the lower end of the filtering assembly, the sealing groove is formed in the outer surface of the upper end of the first fixing frame, and the sealing ring is located on the outer surface of the lower end of the second fixing frame. The four slots are formed in the front and rear ends of the outer surfaces of the two sides of the first fixing frame correspondingly. According to the filtering structure for the centrifugal fan, the second fixing frame can be conveniently assembled and disassembled, the filtering assembly can be conveniently replaced and cleaned, and better use prospects are brought.

Description

Technical Field

[0001] The utility model relates to the field of PP centrifugal fans, in particular to a filtering structure for centrifugal fans. Background Art

[0002] Centrifugal fans are mechanical equipment that converts kinetic energy into potential energy based on the principle of converting kinetic energy into potential energy. They use a high-speed rotating impeller to accelerate the gas, then slow it down and change the flow direction, so that the kinetic energy is converted into potential energy. They can increase the gas pressure and discharge the gas. The existing PP centrifugal fans use air filters through connecting plates to filter the air, but the filter assembly is fixedly connected to the air duct, which makes it inconvenient to replace and clean the filter assembly, affecting its use and bringing certain adverse effects to people's use process. For this reason, we propose a filter structure for centrifugal fans. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a filter structure for a centrifugal fan, which has the advantages of being able to easily install and disassemble the second fixing frame and to easily replace and clean the filter assembly, and can effectively solve the problems in the background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a filtering structure for a centrifugal fan, comprising a fan, an outer surface of one side of the fan is provided with an air duct, the upper outer surface of the air duct is provided with a first fixed frame, the upper end of the first fixed frame is provided with a filter assembly, the outer surface of one side of the filter assembly is provided with an installation and disassembly mechanism, the installation and disassembly mechanism includes a second fixed frame, a guide groove, a fixed plate, a cylinder, a connecting plate, a guide rod, a plug plate, a slot, a sealing groove and a sealing ring, the second fixed frame is fixedly installed on the lower outer surface of the filter assembly, the sealing groove is opened on the upper outer surface of the first fixed frame, and the sealing ring is located on the lower outer surface of the second fixed frame.

[0007] Preferably, the four groups of slots are respectively opened at the front and rear ends of the outer surfaces of both sides of the first fixed frame, the two groups of fixing plates are respectively fixedly installed on the two sides of the outer surface of the upper end of the second fixed frame, the two groups of cylinders are respectively located at the front and rear ends of the outer surface of one side of the fixing plate, and the connecting plate is fixedly installed on the outer surface of one side of the cylinder.

[0008] Preferably, the four groups of guide grooves are respectively opened at the front and rear ends of the outer surface of both sides of the second fixed frame, the two groups of guide rods are respectively fixedly installed at the front and rear ends of the middle part of the outer surface of one side of the connecting plate, and the two groups of plug plates are respectively fixedly installed at the lower ends of the front and rear ends of the outer surface of one side of the connecting plate.

[0009] Preferably, the sealing ring and the sealing groove are plug-connected, and the second fixing frame and the first fixing frame are overlapped.

[0010] Preferably, the guide rod and the guide groove are slidably connected, and the plug plate and the slot are plugged together.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model provides a filter structure for a centrifugal fan, which has the following beneficial effects:

[0013] The centrifugal fan filter structure can facilitate installation and removal of the second fixing frame and replacement and cleaning of the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a filter structure for a centrifugal fan.

[0015] Figure 2 This is a partial structural analysis diagram of a filter structure for a centrifugal fan of the utility model.

[0016] Figure 3 The utility model is a structural diagram of the installation and disassembly mechanism in a filter structure for a centrifugal fan.

[0017] Figure 4 This is a front view analysis diagram of the installation and disassembly mechanism in a filter structure for a centrifugal fan of the utility model.

[0018] In the figure: 1. fan; 2. air duct; 3. first fixed frame; 4. filter assembly; 5. installation and removal mechanism; 6. second fixed frame; 7. guide groove; 8. fixed plate; 9. cylinder; 10. connecting plate; 11. guide rod; 12. plug-in plate; 13. slot; 14. sealing groove; 15. sealing ring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] This embodiment is a filter structure for a centrifugal fan.

[0021] like Figure 1-4As shown, it includes a fan 1, an air duct 2 is arranged on the outer surface of one side of the fan 1, a first fixed frame 3 is arranged on the outer surface of the upper end of the air duct 2, a filter assembly 4 is arranged on the upper end of the first fixed frame 3, and an installation and disassembly mechanism 5 is arranged on the outer surface of one side of the filter assembly 4. The installation and disassembly mechanism 5 includes a second fixed frame 6, a guide groove 7, a fixed plate 8, a cylinder 9, a connecting plate 10, a guide rod 11, a plug plate 12, a slot 13, a sealing groove 14 and a sealing ring 15. The second fixed frame 6 is fixedly installed on the outer surface of the lower end of the filter assembly 4, the sealing groove 14 is opened on the outer surface of the upper end of the first fixed frame 3, and the sealing ring 15 is located on the outer surface of the lower end of the second fixed frame 6.

[0022] Four groups of slots 13 are respectively opened at the front and rear ends of the outer surfaces of both sides of the first fixed frame 3, two groups of fixing plates 8 are respectively fixedly installed on both sides of the outer surface of the upper end of the second fixed frame 6, two groups of cylinders 9 are respectively located at the front and rear ends of the outer surface of one side of the fixing plate 8, and the connecting plate 10 is fixedly installed on the outer surface of one side of the cylinder 9; four groups of guide grooves 7 are respectively opened at the front and rear ends of the outer surface of both sides of the second fixed frame 6, two groups of guide rods 11 are respectively fixedly installed at the front and rear ends of the middle part of the outer surface of one side of the connecting plate 10, and two groups of plug-in plates 12 are respectively fixedly installed at the lower ends of the front and rear ends of the outer surface of one side of the connecting plate 10; the sealing ring 15 and the sealing groove 14 are plug-in, and the second fixed frame 6 and the first fixed frame 3 are overlapped; the guide rod 11 and the guide groove 7 are slidably connected, and the plug-in plate 12 and the slot 13 are plug-in.

[0023] It should be noted that the utility model is a filtering structure for a centrifugal fan, which is filtered through the filter assembly 4. The starting cylinder 9 drives the connecting plate 10 to move to one side and drives the guide rod 11 to slide along the guide groove 7, and slides the plug plate 12 along the slot 13, moves the plug plate 12 out of the slot 13, pulls the filter assembly 4 upward, and the sealing ring 15 leaves the sealing groove 14. After the filter assembly 4 and the air duct 2 are separated, the filter assembly 4 is replaced and cleaned. After the cleaning is completed, the second fixed frame 6 set at the lower end of the filter assembly 4 is overlapped with the first fixed frame 3, and the sealing ring 15 is inserted into the sealing groove 14 for sealing. The starting cylinder 9 drives the connecting plate 10 to move to one side, drives the guide rod 11 to slide along the guide groove 7 and drives the plug plate 12 to be inserted into the corresponding slot 13, thereby fixing the second fixed frame 6 to the first fixed frame 3, which can facilitate the installation and disassembly of the second fixed frame 6 and the replacement and cleaning of the filter assembly 4.

[0024] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A filter structure for a centrifugal fan, comprising a fan (1), characterized in that: An air duct (2) is arranged on the outer surface of one side of the fan (1), a first fixed frame (3) is arranged on the outer surface of the upper end of the air duct (2), a filter assembly (4) is arranged on the upper end of the first fixed frame (3), an installation and removal mechanism (5) is arranged on the outer surface of one side of the filter assembly (4), the installation and removal mechanism (5) comprises a second fixed frame (6), a guide groove (7), a fixed plate (8), a cylinder (9), a connecting plate (10), a guide rod (11), a plug plate (12), a slot (13), a sealing groove (14) and a sealing ring (15), the second fixed frame (6) is fixedly installed on the outer surface of the lower end of the filter assembly (4), the sealing groove (14) is opened on the outer surface of the upper end of the first fixed frame (3), and the sealing ring (15) is located on the outer surface of the lower end of the second fixed frame (6).

2. A filter structure for a centrifugal fan according to claim 1, characterized in that: The four groups of slots (13) are respectively opened at the front and rear ends of the outer surfaces of both sides of the first fixed frame (3); the two groups of fixing plates (8) are respectively fixedly installed on the two sides of the outer surface of the upper end of the second fixed frame (6); the two groups of cylinders (9) are respectively located at the front and rear ends of the outer surface of one side of the fixing plate (8); and the connecting plate (10) is fixedly installed on the outer surface of one side of the cylinder (9).

3. A filter structure for a centrifugal fan according to claim 2, characterized in that: The four groups of guide grooves (7) are respectively arranged at the front and rear ends of the outer surfaces of both sides of the second fixed frame (6); the two groups of guide rods (11) are respectively fixedly mounted at the front and rear ends of the middle part of the outer surface of one side of the connecting plate (10); and the two groups of plug plates (12) are respectively fixedly mounted at the lower ends of the front and rear ends of the outer surface of one side of the connecting plate (10).

4. A filter structure for a centrifugal fan according to claim 3, characterized in that: The sealing ring (15) and the sealing groove (14) are plug-connected, and the second fixing frame (6) and the first fixing frame (3) are overlapped.

5. A filter structure for a centrifugal fan according to claim 4, characterized in that: The guide rod (11) and the guide groove (7) are slidably connected, and the plug board (12) and the slot (13) are plugged.

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