Air suspension centrifugal fan with air inlet filter screen convenient to clean

Abstract

The utility model discloses an air suspension centrifugal fan with an air inlet filter screen convenient to clean, relates to the technical field of air suspension centrifugal fans, and aims to solve the problems that the filter screen cannot be detached and cleaned in time once the filter screen is blocked and the use is affected due to the fact that the position of an air inlet of an existing centrifugal fan is not provided with the filter screen convenient to detach and install. According to the technical scheme, the device is characterized by comprising a fan air inlet end, a clamping ring is connected to the outer side of the fan air inlet end in a clamped mode, a limiting plate is fixedly connected to the interior of the clamping ring, a fixing block is fixedly connected to the outer side of the clamping ring, a moving rod and a spring are arranged in the fixing block, and a first clamping plate is fixedly connected to the outer side of the moving rod; and the outer side of the first clamping plate is fixedly connected with a second clamping plate. And the effect of convenient disassembly and assembly is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air suspension centrifugal fans, in particular to an air suspension centrifugal fan which is convenient for cleaning an air inlet filter screen. Background Art

[0002] The air-suspended centrifugal fan is an integrated machine of a permanent magnet motor and a centrifugal fan, sharing a common shaft. The fan has a small impeller and a high speed to ensure high wind pressure and sufficient air volume. It is based on dynamic pressure air bearing technology and permanent magnet direct-drive motor technology. It uses air-suspended bearings to make the fan shaft self-suspended when rotating at high speed. The air-suspended centrifugal blower is different from the traditional Roots blower. Compared with the Roots blower, the air-suspended centrifugal blower reduces the friction loss of equipment operation and saves electricity. There is no mechanical wear, only wind friction loss, and the wind friction power consumption is within 200W. Compared with the magnetic suspension fan, the air suspension fan has no magnetic field circuit, is not afraid of emergency stop and power failure, and is more convenient to maintain.

[0003] The above-mentioned prior art solutions have the following defects: there is no filter screen at the air inlet of the existing centrifugal fan that is convenient for disassembly and assembly, so that once the filter screen is blocked, it cannot be disassembled and cleaned in time, which affects the use. Utility Model Content

[0004] The utility model aims to provide an air suspension centrifugal fan which is convenient for cleaning an air inlet filter screen.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The cam is provided with a first plate, the second plate is provided with a second spring, and the second plate is provided with a second spring.

[0007] By adopting the above technical solution, a detachable clamping ring is added to the end of the air outlet. The clamping ring can be moved by manually pressing the end of the movable rod through the expansion and contraction action of the spring. The clamping ring is then clamped to the outside of the port, and the second clamping plate can fit tightly with the inner side of the air inlet end to fix the clamping ring. The filter is connected to the inside of the mounting ring through threads, and the mounting ring itself can be clamped between the first clamping plate and the clamping ring to achieve clamping. The symmetrically distributed structure can improve the stability of the structure after clamping.

[0008] Furthermore, the air inlet end of the fan is clamped inside the clamping ring and contacts the limiting plate, and one side of the outer side of the second clamping plate is tightly fitted with the inner side of the air inlet end of the fan.

[0009] By adopting the above technical solution, by pressing the top of the moving rod, the first clamping plate and the second clamping plate can be driven to move at the same time, and the clamping ring and the mounting ring can be engaged at the same time, so as to achieve efficient installation.

[0010] Furthermore, the mounting ring is clamped inside the empty groove, one side of the outer side of the mounting ring is tightly fitted with the inner side of the clamping ring, and the other side of the outer side of the mounting ring is tightly fitted with one side of the outer side of the first clamping plate.

[0011] By adopting the above technical solution, by snapping the installation ring into the empty groove, quick snap-in installation can be achieved, which is convenient for operation.

[0012] Furthermore, the first clamping plate and the second clamping plate both adopt an arc-shaped structure, and the internal thread and the external thread are threadedly connected.

[0013] By adopting the above technical solution, the snap-fit ​​installation can be better performed, and the filter can also be easily disassembled and assembled, making it easier to clean later.

[0014] In summary, the beneficial technical effects of the utility model are:

[0015] A moving rod, a spring, a clamping plate, a clamping ring and a filter are used. The filter is installed by a threaded connection and can be disassembled at any time for easy cleaning. At the same time, the mounting ring can be snapped into the inside of the clamping ring, and the clamping ring can be directly snapped onto the outside of the air inlet end of the fan. At the same time, when the top of the moving rod is pressed, the mounting ring and the clamping ring can be installed at the same time, with high installation efficiency. At the same time, the original structure of the centrifugal fan will not be damaged. It can be disassembled and assembled at any time, which is more convenient to operate and produces an effect of convenient disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the clamping ring of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the first splint of the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping ring of the utility model.

[0021] In the figure, 1. air inlet end of the fan; 2. clamping ring; 3. limit plate; 4. fixing block; 5. moving rod; 6. spring; 7. first clamping plate; 8. second clamping plate; 9. mounting ring; 10. internal thread; 11. mounting seat; 12. filter screen; 13. external thread; 14. handle; 91. empty slot. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Reference Figure 1-5 , an air suspension centrifugal fan for facilitating cleaning of an air inlet filter, comprising a fan air inlet end 1, a clamping ring 2 is clamped and connected to the outer side of the fan air inlet end 1, a limiting plate 3 is fixedly connected to the inner side of the clamping ring 2, a fixing block 4 is fixedly connected to the outer side of the clamping ring 2, a moving rod 5 and a spring 6 are arranged inside the fixing block 4, a first clamping plate 7 is fixedly connected to the outer side of the moving rod 5, a second clamping plate 8 is fixedly connected to the outer side of the first clamping plate 7, a mounting ring 9 is arranged inside the clamping ring 2, an internal thread 10 and a mounting seat 11 are arranged on the inner side of the mounting ring 9, a filter screen 12 is fixedly connected to the inner side of the mounting seat 11, and a filter screen 12 is fixedly connected to the outer side of the mounting seat 11. An external thread 13 is provided on the side, and a handle 14 is fixedly connected to one side of the outer side of the mounting seat 11. An empty groove 91 is reserved between the first clamping plate 7 and the clamping ring 2, and a removable clamping ring 2 is added at the end of the air outlet. The clamping ring 2 is moved by manually pressing the end of the moving rod 5. At this time, it can be moved by the telescopic effect of the spring 6, and then the clamping ring 2 is clamped to the outside of the port. At the same time, the second clamping plate 8 can be tightly fitted with the inner side of the air inlet end to fix the clamping ring 2. The filter screen 12 is connected to the inside of the mounting ring 9 by threads, and the mounting ring 9 itself can be clamped between the first clamping plate 7 and the clamping ring 2 to achieve clamping.

[0024] like Figure 1-5As shown, the air inlet end 1 of the fan is engaged in the inside of the clamping ring 2 and contacts with the limit plate 3. One side of the outer side of the second clamping plate 8 is tightly fitted with the inner side of the air inlet end 1 of the fan. The fixed block 4, the moving rod 5, the spring 6, the first clamping plate 7 and the second clamping plate 8 are symmetrically arranged in two groups, each group of moving rods 5 and springs 6 are respectively provided with two. The moving rod 5 and the fixed block 4 are movably connected through the spring 6. The mounting ring 9 is engaged in the inside of the empty groove 91. One side of the outer side of the mounting ring 9 is tightly fitted with the inner side of the clamping ring 2, and the other side of the outer side of the mounting ring 9 is tightly fitted with one side of the outer side of the first clamping plate 7. The first clamping plate 7 and the second clamping plate 8 both adopt an arc structure, and the internal thread 10 and the external thread 13 are threadedly connected. Pressing the top of the moving rod 5 can drive the first clamping plate 7 and the second clamping plate 8 to move at the same time, and the clamping ring 2 and the mounting ring 9 can be engaged at the same time for efficient installation.

[0025] The implementation principle of this embodiment is: when the filter 12 needs to be cleaned, the moving rod 5 can be pressed first, and the mounting ring 9 can be removed from the inside of the clamping ring 2. Then, the handle 14 can be pulled to manually rotate the mounting seat 11, and the filter 12 can be disassembled by threaded connection to facilitate cleaning. At the same time, when the device is installed, the moving rod 5 is pressed, and the mounting ring 9 is engaged with the inside of the empty groove 91, and the clamping ring 2 is engaged with the outside of the air inlet end 1 of the fan. Then, the moving rod 5 is released, and the first clamping plate 7 and the second clamping plate 8 can be clamped at the same time through the expansion and contraction action of the spring 6. Two components can be clamped at one time, the installation efficiency is higher, and the filter 12 is also convenient to clean.

[0026] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An air suspension centrifugal fan for facilitating cleaning of an air inlet filter, comprising an air inlet end (1) of the fan, characterized in that: The outer side of the wind inlet end (1) of the fan is snap-connected with a clamping ring (2), the inner side of the clamping ring (2) is fixedly connected to a limit plate (3), the outer side of the clamping ring (2) is fixedly connected to a fixing block (4), the inner side of the fixing block (4) is provided with a moving rod (5) and a spring (6), the outer side of the moving rod (5) is fixedly connected to a first clamping plate (7), the outer side of the first clamping plate (7) is fixedly connected to a second clamping plate (8), the inner side of the clamping ring (2) is provided with a mounting ring (9), the inner side of the mounting ring (9) is provided with an internal thread (10) and a mounting seat (11), and the mounting ring (9) is provided with an internal thread (10) and a mounting seat (11). A filter screen (12) is fixedly connected to the interior of the mounting seat (11), an external thread (13) is provided on the outer side of the mounting seat (11), a handle (14) is fixedly connected to one side of the outer side of the mounting seat (11), an empty groove (91) is reserved between the first clamping plate (7) and the clamping ring (2), the fixed block (4), the movable rod (5), the spring (6), the first clamping plate (7) and the second clamping plate (8) are symmetrically arranged in two groups, each group of the movable rods (5) and the spring (6) is respectively provided with two, and the movable rod (5) and the fixed block (4) are movably connected via the spring (6).

2. The air suspension centrifugal fan for easy cleaning of the air inlet filter according to claim 1, characterized in that: The fan air inlet end (1) is clamped inside the clamping ring (2) and in contact with the limiting plate (3), and an outer side of the second clamping plate (8) is tightly fitted with an inner side of the fan air inlet end (1).

3. The air suspension centrifugal fan for easy cleaning of the air inlet filter according to claim 1, characterized in that: The mounting ring (9) is engaged inside the hollow groove (91), one side of the outer side of the mounting ring (9) is tightly fitted with the inner side of the clamping ring (2), and the other side of the outer side of the mounting ring (9) is tightly fitted with one side of the outer side of the first clamping plate (7).

4. The air suspension centrifugal fan for easy cleaning of the air inlet filter according to claim 1, characterized in that: The first clamping plate (7) and the second clamping plate (8) both have an arc-shaped structure, and the internal thread (10) and the external thread (13) are threadedly connected.

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