Centrifugal fan with connecting structure

Abstract

The centrifugal fan with the connecting structure comprises a machine shell, a bottom plate and a motor, the bottom plate and the motor are installed on the machine shell, an air inlet is formed in the surface of the machine shell, a dustproof net is installed in the air inlet in an embedded mode, an ash removing assembly is arranged on the machine shell and comprises an ash removing piece and a driving piece, and the driving piece is connected with the bottom plate. The dust removing part comprises a long brush, a connecting strip is fixedly arranged on the front face of the end of the long brush, the driving part comprises a driving motor and two sets of screws, and two sets of mounting plates are fixedly arranged outside the driving motor; according to the dust removing assembly, dust can be conveniently removed when the surface of the dust screen located on the air inlet is covered with a large amount of dust in the using process, the cleanliness of the surface of the dust screen is improved, external air can pass through the dust screen more smoothly, and the flow speed of the external air entering the air inlet through the dust screen is stable; and the use effect of the centrifugal fan is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifugal fans, and in particular relates to a centrifugal fan with a connection structure. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings for ventilation, dust removal and cooling. Centrifugal fans are based on the principle of converting kinetic energy into potential energy. They use a high-speed rotating impeller to accelerate the gas, then decelerate and change the flow direction to convert kinetic energy into potential energy. The Chinese patent application number 202223179918.6 discloses a centrifugal fan. It can be seen that the content describes a centrifugal fan with a connection structure.

[0003] When an existing centrifugal fan is in use, under the high-speed rotation of the internal impeller, external wind enters the interior of the casing from the air inlet, and then is discharged outward from the outlet connecting flange. In order to prevent dust from entering the interior of the casing from the air inlet during use, a dust screen is installed on the surface of the air inlet to prevent dust from entering. However, after long-term use, dust covers the surface of the dust screen, causing the air inlet to be blocked, resulting in a decrease in the flow rate of external wind when it enters the air inlet through the dust screen, affecting the tooling efficiency of the centrifugal fan, increasing the load of the motor, and affecting the use effect of the centrifugal fan. For this reason, we propose a centrifugal fan with a connection structure. Utility Model Content

[0004] The utility model aims to provide a centrifugal fan with a connecting structure to solve the problem in the above-mentioned background technology that when the existing centrifugal fan is in use for a long time, dust covers the surface of the dustproof net, causing the air inlet to be blocked, resulting in a decrease in the flow rate of external wind when it enters the air inlet through the dustproof net.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifugal fan with a connecting structure, comprising a casing and a base plate and a motor installed on the casing, the casing having an air inlet on the surface, a dust screen embedded in the interior of the air inlet, a cleaning assembly provided on the casing, the cleaning assembly comprising a cleaning part and a driving part, the cleaning part comprising a long brush, a connecting strip being fixedly provided on the front end of the long brush, the driving part comprising a driving motor and two sets of screws, and two sets of mounting plates being fixedly provided on the outside of the driving motor.

[0006] Preferably, a through hole is opened inside the mounting plate, and the end of the screw rod passes through the inside of the through hole.

[0007] Preferably, an internal thread ring is provided on the outside of the screw, and the internal thread ring is connected to the screw by threaded engagement.

[0008] Preferably, a mounting bar is fixedly provided at the end of the connecting bar, a rotating shaft is provided on the driving motor, and the rotating shaft is fixedly connected to the mounting bar.

[0009] Preferably, the outlet connecting flange is fixed to the top of the casing, a magnet is arranged on the top of the outlet connecting flange, a cover plate is fixedly arranged on the top of the magnet, and the magnet and the outlet connecting flange are connected by adsorption.

[0010] Preferably, a bracket is provided on the top of the base plate, and the motor is fixed on the bracket.

[0011] Preferably, a plurality of sets of stands are fixedly arranged between the bottom of the casing and the bottom plate, and an impeller is arranged inside the casing.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model is designed with a dust cleaning component, which can be used to clean the dust when the surface of the dust screen located on the air inlet is covered with a lot of dust during use, thereby increasing the cleanliness of the surface of the dust screen and making it easier for external wind to pass through the dust screen. When the external wind passes through the dust screen and enters the air inlet, the flow rate is stable, thereby improving the use effect of the centrifugal fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0016] Figure 3 This is a schematic diagram of the structure of the dust cleaning component of the utility model;

[0017] Figure 4 This is a schematic diagram of the rear view structure of the casing of the utility model;

[0018] Figure 5 This is a schematic diagram of the magnet and cover plate structure of the utility model when viewed from above;

[0019] In the figure: 100, casing; 101, outlet connecting flange; 102, bottom plate; 103, air inlet; 104, dust screen; 105, motor; 200, long brush; 201, drive motor; 202, mounting plate; 203, screw; 204, internal thread ring; 205, connecting strip; 206, mounting strip; 207, rotating shaft; 300, cover plate; 301, magnet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: a centrifugal fan with a connection structure, including a casing 100, a bottom plate 102 and a motor 105 installed on the casing 100, an air inlet 103 is provided on the surface of the casing 100, and a dustproof net 104 is embedded and installed inside the air inlet 103. When in use, the dustproof net 104 can prevent external dust from entering the interior of the casing 100 from the air inlet 103. A dust cleaning component is provided on the casing 100, and the dust cleaning component includes a dust cleaning part and a driving part. The dust cleaning part includes an elongated brush 200, and a connecting strip 205 is fixedly provided on the front end of the elongated brush 200. The driving part includes a driving motor 201 and two groups of screws 203. Two groups of mounting plates 202 are fixedly provided on the outside of the driving motor 201. When in use, the elongated brush 200 can be rotated in counterclockwise and clockwise directions by driving the motor 201. A through hole is provided inside the mounting plate 202, and the end of the screw 203 passes through the inside of the through hole. The outside of the screw 203 An internal threaded ring 204 is provided, and when in use, the mounting plate 202 on the screw 203 can be fixed by the internal threaded ring 204, and the internal threaded ring 204 and the screw 203 are connected by threaded engagement. When in use, the screw 203 and the internal threaded ring 204 can connect and fix the mounting plate 202 and the casing 100 together. When in use, the screw 203 is fixed to the front of the casing 100, and the end of the connecting strip 205 is fixedly provided with a mounting strip 206. The driving motor 201 is provided with a rotating shaft 207, and the rotating shaft 207 is fixedly connected to the mounting strip 206. The designed dust cleaning component is convenient for cleaning the dust when the surface of the dustproof net 104 located on the air inlet 103 is covered with a lot of dust during use, thereby increasing the cleanliness of the surface of the dustproof net 104, making the external wind pass through the dustproof net 104 more smoothly, and the flow rate of the external wind is stable when entering the air inlet 103 through the dustproof net 104, thereby improving the use effect of the centrifugal fan.

[0022] In this embodiment, preferably, the outlet connecting flange 101 is fixed on the top of the casing 100. When in use, the outlet connecting flange 101 plays a connecting role. Some air outlet ducts can be installed on the outlet connecting flange 101 for use. A magnet 301 is provided on the top of the outlet connecting flange 101. When in use, the outlet connecting flange 101 is made of iron. A cover plate 300 is fixed on the top of the magnet 301, and the magnet 301 is connected to the outlet connecting flange 101 by adsorption.

[0023] In this embodiment, preferably, a bracket is provided on the top of the bottom plate 102, and the motor 105 is fixed on the bracket.

[0024] In this embodiment, preferably, a plurality of sets of stands are fixedly disposed between the bottom of the housing 100 and the bottom plate 102 , and an impeller is disposed inside the housing 100 .

[0025] The working principle and use process of this utility model:

[0026] When the utility model is in use, when the surface of the dustproof net 104 is covered with a lot of dust, the driving motor 201 is started first, and the rotating shaft 207 on the driving motor 201 rotates counterclockwise first, driving the mounting bar 206 to rotate, and the mounting bar 206 drives the connecting bar 205 to rotate. The connecting bar 205 drives the elongated brush 200 to rotate, and the back of the elongated brush 200 begins to contact the surface of the dustproof net 104. At this time, the dust on the surface of the dustproof net 104 can be cleaned. When the elongated brush 200 rotates counterclockwise to a suitable angle, The driving motor 201 is reversed, and the elongated brush 200 is driven to rotate in the clockwise direction. The elongated brush 200 can clean the dust on the surface of the dust screen 104 again. After repeated cleaning, the dust on the surface of the dust screen 104 can be cleaned. After the internal thread ring 204 is unscrewed from the screw 203, the driving motor 201 is moved in the front direction to drive the mounting plate 202 to move. Then, the end of the screw 203 is separated from the through hole in the mounting plate 202. At this time, the elongated brush 200 and the driving motor 201 can be removed.

[0027] When transporting the centrifugal fan, cover the cover 300 on the outlet connecting flange 101. At this time, the outlet connecting flange 101 on the cover 300 is adsorbed together with the outlet connecting flange 101. At this time, the cover 300 can be installed. The cover 300 can prevent external foreign matter from entering the interior of the casing 100 from the outlet connecting flange 101. When in use, the cover 300 can be removed according to the opposite principle mentioned above.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal fan with a connection structure, comprising a casing (100) and a bottom plate (102) and a motor (105) mounted on the casing (100), characterized in that: An air inlet (103) is provided on the surface of the casing (100), a dust screen (104) is embedded in the interior of the air inlet (103), a dust cleaning assembly is provided on the casing (100), the dust cleaning assembly comprises a dust cleaning part and a driving part, the dust cleaning part comprises a long brush (200), a connecting strip (205) is fixedly provided on the front end of the long brush (200), the driving part comprises a driving motor (201) and two groups of screw rods (203), and two groups of mounting plates (202) are fixedly provided on the outside of the driving motor (201).

2. A centrifugal fan with a connection structure according to claim 1, characterized in that: A through hole is provided inside the mounting plate (202), and the end of the screw rod (203) passes through the inside of the through hole.

3. A centrifugal fan with a connection structure according to claim 2, characterized in that: An internal thread ring (204) is provided on the outside of the screw rod (203), and the internal thread ring (204) is screwed together with the screw rod (203) via a thread.

4. A centrifugal fan with a connection structure according to claim 3, characterized in that: A mounting bar (206) is fixedly provided at the end of the connecting bar (205), a rotating shaft (207) is provided on the driving motor (201), and the rotating shaft (207) is fixedly connected to the mounting bar (206).

5. The centrifugal fan with a connection structure according to claim 1, characterized in that: The outlet connection flange (101) is fixed to the top of the housing (100), a magnet (301) is arranged on the top of the outlet connection flange (101), a cover plate (300) is fixedly arranged on the top of the magnet (301), and the magnet (301) and the outlet connection flange (101) are connected by adsorption.

6. The centrifugal fan with a connection structure according to claim 1, characterized in that: A bracket is provided on the top of the bottom plate (102), and the motor (105) is fixed on the bracket.

7. The centrifugal fan with a connection structure according to claim 1, characterized in that: A plurality of sets of vertical frames are fixedly arranged between the bottom of the casing (100) and the bottom plate (102), and an impeller is arranged inside the casing (100).

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