Dustproof axial flow fan

Abstract

The utility model relates to the technical field of axial flow fans, and discloses a dustproof axial flow fan which comprises a shell, a filtering mechanism and a dust removal mechanism are installed at the left end and the right end of the shell, the filtering mechanism is arranged on the outer side of the dust removal mechanism, and a fan assembly is installed in the middle of the shell. According to the dustproof axial flow fan, the top ring is jacked by the spring, so that the sealing ring is tightly pressed on one side of the connecting ring, a sealing line between the filter screen and the shell is effectively increased, dust is prevented from entering the shell through a gap, the filter assembly can be detached by rotating the handle, the filter screen is convenient to replace or clean, and the dustproof axial flow fan is convenient to use. The air pump is driven to convey high-pressure air into the rotary air cylinder through the connecting pipe, so that the high-pressure air is sprayed out of the nozzle through the exhaust pipe to reversely blow dust, and meanwhile, the servo motor is driven to drive the rotary air cylinder to rotate through the belt and the belt wheel, so that the exhaust pipe and the nozzle clean more comprehensively; the efficient filtering effect is maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of axial flow fans, in particular to a dust-proof axial flow fan. Background Art

[0002] Axial flow fans have a wide range of uses. They are fans that move air in the same direction as the axis of the fan blades. They are called "axial flow" because the gas flows parallel to the fan axis. Axial flow fans are usually used in situations where the flow rate requirements are high and the pressure requirements are low. Axial flow fans are fixed in position and move air. Axial flow fans are mainly composed of a fan impeller, a motor and a casing. The fan impeller and the motor are both located inside the casing. The fan impeller includes a hub and several blades distributed along the circumference of the hub. The hub is set on the rotating shaft of the motor and the fan impeller is driven by the motor.

[0003] Current axial flow fans use filters to prevent dust, but when they run for a long time, a large amount of dust will adhere to the filter, resulting in low ventilation efficiency of the filter and affecting the filtering effect. Utility Model Content

[0004] The main purpose of the utility model is to provide a dust-proof axial flow fan, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a dust-proof axial flow fan, comprising a housing, with a filter mechanism and a dust removal mechanism installed at the left and right ends of the housing, the filter mechanism being arranged outside the dust removal mechanism, and a fan assembly being installed in the middle of the housing;

[0006] The filtering mechanism includes a sleeve, a fixed ring, a spring, a top ring, a slot and a filter assembly. The outer periphery of the sleeve is fixedly connected to the left and right inner walls of the shell, the outer periphery of the top ring is slidably connected to the inner wall of the sleeve, the spring is arranged between the fixed ring and the top ring, the outer periphery of the filter assembly is arranged inside the slot, and the slot is opened on the inner wall of the sleeve.

[0007] Preferably, a sealing ring is installed on the side of the top ring away from the spring.

[0008] Preferably, the filter assembly includes a filter screen, a connecting ring and a handle, the outer periphery of the filter screen is fixedly connected to the inside of the connecting ring, the handle is arranged on the inner side wall of the connecting ring, and the outer periphery of the connecting ring is arranged inside the card slot.

[0009] Preferably, the fan assembly includes a bracket, a reduction motor and fan blades, the outer periphery of the bracket is fixedly connected to the middle of the shell, the middle of the fan blade is rotatably connected to the middle of one side of the bracket, the reduction motor is installed on the other side of the middle of the bracket, and the output end of the reduction motor passes through the bracket and is fixedly connected to the middle of the fan blade.

[0010] Preferably, the dust removal mechanism includes an air pump, a connecting pipe, a rotating air cylinder, an exhaust pipe, a nozzle, a fixing seat, a support frame and a rotating assembly, the outer periphery of the support frame is fixedly connected to the left and right sides of the shell, the middle part of one end of the rotating air cylinder is rotatably connected to the middle of the support frame, one end of the exhaust pipe is fixedly connected to the outer periphery of the rotating air cylinder, the nozzle is fixedly connected to the outer periphery of the exhaust pipe, the air pump is installed on the outer periphery of the shell through the fixing seat, one end of the connecting pipe is fixedly connected to the output end of the air pump, the other end of the connecting pipe passes through the side wall of the shell and is rotatably connected to the other end of the rotating air cylinder, and the rotating air cylinder is installed on the outer periphery of the rotating air cylinder.

[0011] Preferably, the rotating assembly includes a protective shell, a belt, two pulleys and a servo motor, the middle part of the pulley is rotatably connected to the two ends inside the protective shell, one end of the protective shell is sleeved on the outer periphery of the rotating air cylinder, one of the pulleys is fixedly connected to the outer periphery of the rotating air cylinder, the outer peripheries of the two pulleys are meshed and connected inside the belt, the servo motor is installed at the bottom of the shell, and the output end of the servo motor passes through the protective shell and is fixedly connected to the middle part of the other pulley.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Insert the connecting ring into the slot and rotate it to a certain angle. The spring pushes the top ring so that the sealing ring is tightly pressed against one side of the connecting ring, thereby effectively increasing the sealing line between the filter and the shell, preventing dust from entering the shell through the gap, thereby improving the dustproof effect. At the same time, turn the handle to remove the filter assembly, making it easier to replace or clean the filter.

[0014] 2. Drive the air pump to deliver high-pressure gas into the rotating air cylinder through the connecting pipe, and then eject the high-pressure gas from the nozzle through the exhaust pipe, so as to back-blow the dust on it. At the same time, drive the servo motor to rotate the rotating air cylinder through the belt and pulley, so that the exhaust pipe and nozzle can be cleaned more comprehensively and maintain a high-efficiency filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a dust-proof axial flow fan of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of a dust-proof axial flow fan of the present invention;

[0017] Figure 3 This is a schematic diagram of the filter structure of a dust-proof axial flow fan of the utility model;

[0018] Figure 4 This is a schematic structural diagram of a fan assembly of a dust-proof axial flow fan of the present invention;

[0019] Figure 5 The utility model is a schematic diagram of the dust removal mechanism of a dust-proof axial flow fan.

[0020] In the figure: 1. Shell; 2. Filter mechanism; 201. Sleeve; 202. Fixed ring; 203. Spring; 204. Top ring; 205. Sealing ring; 206. Slot; 207. Filter assembly; 2071. Filter screen; 2072. Connecting ring; 2073. Handle; 3. Dust removal mechanism; 301. Air pump; 302. Connecting pipe; 303. Rotating air cylinder; 304. Exhaust pipe; 305. Nozzle; 306. Fixed seat; 307. Support frame; 308. Rotating assembly; 3081. Protective shell; 3082. Belt; 3083. Pulley; 3084. Servo motor; 4. Fan assembly; 401. Bracket; 402. Reducer motor; 403. Fan blade. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-5 As shown, a dust-proof axial flow fan includes a shell 1, with a filter mechanism 2 and a dust removal mechanism 3 installed on the left and right ends of the shell 1, the filter mechanism 2 is arranged on the outside of the dust removal mechanism 3, and a fan assembly 4 is installed in the middle of the shell 1.

[0023] In this embodiment, the filter mechanism 2 includes a sleeve 201, a fixed ring 202, a spring 203, a top ring 204, a slot 206 and a filter assembly 207. The outer periphery of the sleeve 201 is fixedly connected to the inner walls of the left and right sides of the shell 1, and the outer periphery of the top ring 204 is slidably connected to the inner wall of the sleeve 201. The spring 203 is arranged between the fixed ring 202 and the top ring 204. The outer periphery of the filter assembly 207 is arranged inside the slot 206. The slot 206 is opened on the inner wall of the sleeve 201. A sealing ring 205 is installed on the side of the top ring 204 away from the spring 203. The filter assembly 207 includes a filter screen 2071, The connecting ring 2072 and the handle 2073, the outer periphery of the filter 2071 is fixedly connected to the inside of the connecting ring 2072, the handle 2073 is arranged on the inner wall of the connecting ring 2072, the outer periphery of the connecting ring 2072 is arranged inside the card slot 206, the fan assembly 4 includes a bracket 401, a reduction motor 402 and a fan blade 403, the outer periphery of the bracket 401 is fixedly connected to the middle of the shell 1, the middle of the fan blade 403 is rotatably connected to the middle of one side of the bracket 401, the reduction motor 402 is installed on the other side of the middle of the bracket 401, and the output end of the reduction motor 402 passes through the bracket 401 and is fixedly connected to the middle of the fan blade 403.

[0024] Specifically, the connecting ring 2072 is inserted into the slot 206 and rotated to a certain angle. The top ring 204 is pushed by the spring 203, so that the sealing ring 205 is tightly pressed against one side of the connecting ring 2072, thereby effectively increasing the sealing line between the filter 2071 and the shell 1, preventing dust from entering the shell 1 through the gap, thereby improving the dustproof effect. At the same time, by turning the handle 2073, the filter assembly 207 can be removed, thereby facilitating the replacement or cleaning of the filter 2071.

[0025] In this embodiment, the dust removal mechanism 3 includes an air pump 301, a connecting pipe 302, a rotating air cylinder 303, an exhaust pipe 304, a nozzle 305, a fixing seat 306, a support frame 307 and a rotating assembly 308. The outer periphery of the support frame 307 is fixedly connected to the left and right sides of the shell 1, the middle part of one end of the rotating air cylinder 303 is rotatably connected to the middle of the support frame 307, one end of the exhaust pipe 304 is fixedly connected to the outer periphery of the rotating air cylinder 303, the nozzle 305 is fixedly connected to the outer periphery of the exhaust pipe 304, the air pump 301 is installed on the outer periphery of the shell 1 through the fixing seat 306, one end of the connecting pipe 302 is fixedly connected to the output end of the air pump 301, and the other end of the connecting pipe 302 passes through the side wall of the shell 1 and is rotatably connected to the outer periphery of the exhaust pipe 304. At the other end of the rotating air cylinder 303, the rotating air cylinder 303 is installed on the outer periphery of the rotating air cylinder 303. The rotating assembly 308 includes a protective shell 3081, a belt 3082, two pulleys 3083 and a servo motor 3084. The middle part of the pulley 3083 is rotatably connected to the two ends inside the protective shell 3081. One end of the protective shell 3081 is sleeved on the outer periphery of the rotating air cylinder 303. One of the pulleys 3083 is fixedly connected to the outer periphery of the rotating air cylinder 303. The outer peripheries of the two pulleys 3083 are meshed and connected inside the belt 3082. The servo motor 3084 is installed at the bottom of the shell 1. The output end of the servo motor 3084 passes through the protective shell 3081 and is fixedly connected to the middle part of the other pulley 3083.

[0026] Specifically, the air pump 301 is driven to deliver the high-pressure gas into the interior of the rotating air cylinder 303 through the connecting pipe 302, and the high-pressure gas is ejected from the nozzle 305 through the exhaust pipe 304, thereby back-blowing the dust on 3071. At the same time, the servo motor 3084 is driven to drive the rotating air cylinder 303 to rotate through the belt 3082 and the pulley 3083, so that the exhaust pipe 304 and the nozzle 305 can clean 3071 more comprehensively and maintain the high-efficiency filtration effect of 3071.

[0027] Working principle:

[0028] Insert the connecting ring 2072 into the slot 206 and rotate it a certain angle. The spring 203 pushes the top ring 204 so that the sealing ring 205 is tightly pressed against one side of the connecting ring 2072, thereby effectively increasing the sealing line between the filter 2071 and the shell 1, preventing dust from entering the shell 1 through the gap, thereby improving the dustproof effect. At the same time, turn the handle 2073 to remove the filter assembly 207, so as to facilitate the replacement or cleaning of the filter 2071. Drive the air pump 301 to deliver high-pressure gas into the rotating air cylinder 303 through the connecting pipe 302, so that the high-pressure gas is ejected from the nozzle 305 through the exhaust pipe 304, thereby backblowing the dust on 3071. At the same time, drive the servo motor 3084 to drive the rotating air cylinder 303 to rotate through the belt 3082 and the pulley 3083, so that the exhaust pipe 304 and the nozzle 305 can clean 3071 more comprehensively and maintain the high-efficiency filtering effect of 3071.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A dustproof axial flow fan, comprising a housing (1), characterized in that: The housing (1) is provided with a filter mechanism (2) and a dust removal mechanism (3) at both left and right ends, the filter mechanism (2) being arranged outside the dust removal mechanism (3), and a fan assembly (4) being provided in the middle of the housing (1); The filtering mechanism (2) comprises a sleeve (201), a fixed ring (202), a spring (203), a top ring (204), a clamping groove (206) and a filtering assembly (207); the outer periphery of the sleeve (201) is fixedly connected to the inner walls on the left and right sides of the housing (1); the outer periphery of the top ring (204) is slidably connected to the inner wall of the sleeve (201); the spring (203) is arranged between the fixed ring (202) and the top ring (204); the outer periphery of the filtering assembly (207) is arranged inside the clamping groove (206); and the clamping groove (206) is opened on the inner wall of the sleeve (201).

2. The dust-proof axial flow fan according to claim 1, characterized in that: A sealing ring (205) is installed on the side of the top ring (204) away from the spring (203).

3. The dust-proof axial flow fan according to claim 1, characterized in that: The filter assembly (207) comprises a filter screen (2071), a connecting ring (2072) and a handle (2073); the outer periphery of the filter screen (2071) is fixedly connected to the interior of the connecting ring (2072); the handle (2073) is arranged on the inner side wall of the connecting ring (2072); and the outer periphery of the connecting ring (2072) is arranged inside the card slot (206).

4. The dust-proof axial flow fan according to claim 1, characterized in that: The fan assembly (4) comprises a bracket (401), a reduction motor (402) and a fan blade (403); the outer periphery of the bracket (401) is fixedly connected to the middle of the housing (1); the middle of the fan blade (403) is rotatably connected to the middle of one side of the bracket (401); the reduction motor (402) is installed on the other side of the middle of the bracket (401); the output end of the reduction motor (402) passes through the bracket (401) and is fixedly connected to the middle of the fan blade (403).

5. The dust-proof axial flow fan according to claim 1, characterized in that: The dust removal mechanism (3) comprises an air pump (301), a connecting pipe (302), a rotating air cylinder (303), an exhaust pipe (304), a nozzle (305), a fixing seat (306), a support frame (307) and a rotating assembly (308); the outer periphery of the support frame (307) is fixedly connected to the left and right sides of the housing (1); the middle part of one end of the rotating air cylinder (303) is rotatably connected to the middle part of the support frame (307); and one end of the exhaust pipe (304) is fixedly connected to the rotating frame (308). The nozzle (305) is fixedly connected to the outer periphery of the exhaust pipe (304), the air pump (301) is installed on the outer periphery of the housing (1) through a fixing seat (306), one end of the connecting pipe (302) is fixedly connected to the output end of the air pump (301), and the other end of the connecting pipe (302) passes through the side wall of the housing (1) and is rotatably connected to the other end of the rotating air cylinder (303), and the rotating air cylinder (303) is installed on the outer periphery of the rotating air cylinder (303).

6. The dust-proof axial flow fan according to claim 5, characterized in that: The rotating assembly (308) comprises a protective shell (3081), a belt (3082), two pulleys (3083) and a servo motor (3084); the middle portion of the pulley (3083) is rotatably connected to the two ends inside the protective shell (3081); one end of the protective shell (3081) is sleeved on the outer periphery of the rotating air cylinder (303); one of the pulleys (3083) is fixedly connected to the outer periphery of the rotating air cylinder (303); the outer peripheries of the two pulleys (3083) are meshedly connected to the inside of the belt (3082); the servo motor (3084) is mounted on the bottom of the housing (1); the output end of the servo motor (3084) passes through the protective shell (3081) and is fixedly connected to the middle portion of the other pulley (3083).

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