Centrifugal fan with controllable wind direction

Abstract

The utility model relates to the technical field of centrifugal fans, in particular to a wind-direction-controllable centrifugal fan which comprises a centrifugal fan body fixedly connected to a mounting seat. An air outlet is formed in the centrifugal fan body, and an air control device is rotationally connected to the air outlet; a fan is arranged on the centrifugal fan body, two sliding grooves extending in the horizontal direction are symmetrically connected to the positions, on the two sides of the fan, of the centrifugal fan body, and dustproof devices are connected into the sliding grooves in a sliding mode. The direction of the air control port is adjusted through the air control device, so that the air direction is adjusted; the fan opening is subjected to dust prevention through the dust-proof device, the dust-proof plate is easy to disassemble, and the dust-proof net is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan with controllable wind direction. Background Art

[0002] The operating principle of a centrifugal fan is essentially the same as that of a turbine compressor. Because the gas flow rate is low and pressure fluctuations are minimal, changes in specific volume are generally not considered. In other words, the gas is treated as an incompressible fluid. Centrifugal fans are widely used for ventilation, dust removal, and cooling in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings; ventilation and draft in boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; grain drying and sorting; wind tunnel air sources and the inflation and propulsion of hovercraft. However, existing centrifugal fan casings are typically fixed in position, resulting in a single, unadjustable airflow direction, which limits their practical applications. Utility Model Content

[0003] The purpose of this application is to provide a centrifugal fan with controllable wind direction, aiming to solve the above-mentioned problems in the prior art.

[0004] The present application provides a centrifugal fan with controllable wind direction, comprising a centrifugal fan body, wherein the centrifugal fan body is fixedly connected to the mounting seat; the centrifugal fan body is provided with an air outlet, and the air outlet is rotatably connected to the air control device, wherein the air control device comprises an air control box, wherein two inclined air guide walls are symmetrically provided in the air control box, an air inlet is provided on the air control box between one end of the two air guide walls, and an air control outlet is provided on the air control box between the other ends of the two air guide walls; the centrifugal fan body is provided with a fan, and two slide grooves extending in a horizontal direction are symmetrically connected to the centrifugal fan body on both sides of the fan, and a dust prevention device is slidably connected in the slide groove, and the dust prevention device comprises a dust prevention plate, a dust prevention net is fixedly connected to the dust prevention plate, a convex strip is fixedly connected to the left front end of the dust prevention plate, and a slide strip is fixedly connected to each of the upper and lower sides of the dust prevention plate.

[0005] Furthermore, the wind control device also includes a rotating shaft, which passes through and is fixedly connected to the wind control box. One end of the rotating shaft is rotatably connected to the centrifugal fan body, and the other end of the rotating shaft is fixedly connected to the motor output shaft, and the motor is fixedly connected to the centrifugal fan body.

[0006] Furthermore, the wind control box is a hollow cylindrical body, the arc length of the air inlet is one quarter of the circumference of the bottom surface of the wind control box, and the arc length of the air control port is one eighth of the circumference of the bottom surface of the wind control box.

[0007] Furthermore, the right side of the dustproof plate is arranged in an arc shape, and an arc-shaped baffle matching the curvature of the right side of the dustproof plate is fixedly connected to the centrifugal fan body.

[0008] Furthermore, the slot of the slide above the fan is opened downward, and the slot of the slide below the fan is opened upward. The left ends of the two slides are open, and the right ends are sealed to match the curvature of the right side of the dustproof plate.

[0009] Furthermore, a baffle is fixedly connected along the edge of the left end and the upper and lower ends of the back side of the dustproof plate, and the thickness of the baffle is the same as the distance from the notch of the slide groove to the bottom edge of the slide groove.

[0010] Furthermore, a magnetic strip is fixedly connected to the inner side of the baffle at the left end of the dustproof plate, and a magnetic body that is magnetically connected to the magnetic strip is fixedly connected to the centrifugal fan body.

[0011] The beneficial effects of the utility model are as follows: the utility model adjusts the direction of the air control port through the wind control device, thereby adjusting the wind direction; the fan port is dust-proofed by the dustproof device, the dustproof plate is easy to disassemble, and the dustproof net is convenient to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 Schematic diagram of the structure of the dustproof plate.

[0014] Figure 3 Schematic diagram of the relative positions of some baffles and slideways.

[0015] Figure 4 Schematic diagram of the internal structure of the wind control device.

[0016] Figure 5 It is a schematic diagram of the structure of the centrifugal fan body.

[0017] In the picture:

[0018] 1- centrifugal fan body; 2- mounting base; 3- air outlet; 4- air control device; 5- air control box; 6- air guide wall; 7- air inlet; 8- air control port; 9- fan; 10- slide; 11- dustproof device; 12- dustproof plate; 13- dustproof net; 14- slide bar; 15- rotating shaft; 16- motor; 17- arc baffle; 18- baffle bar; 19- magnetic strip; 20- magnetic body; 21- convex strip. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1-5 A centrifugal fan with controllable wind direction is shown, comprising a centrifugal fan body 1, which is fixedly connected to a mounting base 2; an air outlet 3 is provided on the centrifugal fan body 1, and a wind control device 4 is rotatably connected to the air outlet 3, and the wind control device 4 comprises a wind control box 5, and two inclined wind guide walls 6 are symmetrically provided in the wind control box 5, and the two wind guide walls 6 are symmetrically arranged in the upper and lower parts, and an air inlet 7 is provided on the wind control box 5 between one end of the two wind guide walls 6, and an air control port 8 is provided on the wind control box 5 between the other ends of the two wind guide walls 6. The utility model adjusts the direction of the air control port 8 by the wind control device 4, thereby adjusting the wind direction; a fan 9 is provided on the centrifugal fan body 1, and the wind generated by the fan 9 enters the wind control box 5 through the air inlet 7 and leaves the centrifugal fan through the air control port 8. Two horizontally extending chutes 10 are symmetrically connected to the centrifugal fan body 1 on either side of the fan 9. A dust guard 11 is slidably connected within each chute 10. This dust guard 11 comprises a dust plate 12, to which a dust screen 13 is fixedly attached. The size of the dust screen 13 matches the size of the fan 9. A ridge 21 is fixedly attached to the front left end of the dust plate 12, which is used to apply force to move the dust plate 12. A slide 14 is fixedly attached to each of the upper and lower sides of the dust plate 12. The dust guard 11 is slidably connected between the chutes 10 via these slides. The dust guard 11 protects the fan 9 from dust. The dust plate 12 is easily removable, allowing for easy cleaning of the dust screen 13.

[0021] The wind control device 4 also includes a rotating shaft 15, which passes through and is fixedly connected to the wind control box 5. One end of the rotating shaft 15 is rotatably connected to the centrifugal fan body 1, and the other end of the rotating shaft 15 is fixedly connected to the output shaft of the motor 16. The motor 16 is fixedly connected to the centrifugal fan body 1.

[0022] The air control box 5 is a hollow cylindrical body. The arc length of the air inlet 7 is one-fourth of the circumference of the bottom surface of the air control box 5, and the arc length of the air control port 8 is one-eighth of the circumference of the bottom surface of the air control box 5. The air control box 5 can be rotated by a motor 16 at an angle of plus or minus 45 degrees, so that the air inlet 7 can completely guide the air generated by the fan 9 into the air control box 5.

[0023] The right side of the dustproof plate 12 is arranged in an arc shape, and an arc-shaped baffle 17 matching the curvature of the right side of the dustproof plate 12 is fixedly connected to the centrifugal fan body 1.

[0024] The slot of the chute 10 above the fan 9 is opened downward, and the slot of the chute 10 below the fan 9 is opened upward. The left ends of the two chute 10 are open, and the right ends are sealed to match the curvature of the right side of the dustproof plate 12.

[0025] The left end and the upper and lower ends of the back of the dust shield 12 are fixedly connected to the edges with retaining bars 18. The thickness of the retaining bars 18 is the same as the distance from the notch of the chute 10 to the bottom edge of the chute 10. The curved retaining plate 17 and retaining bars 18 cooperate to prevent dust from entering the centrifugal fan from the four sides of the dust shield 11 after the dust shield 11 is assembled.

[0026] A magnetic strip 19 is fixedly connected to the retaining bar 18 at the left end of the dustproof plate 12, and a magnetic body 20 is fixedly connected to the centrifugal fan body 1 and is magnetically connected to the magnetic strip 19. The magnetic connection between the magnetic strip 19 and the magnetic body 20 prevents the dustproof plate 12 from falling off.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A centrifugal fan with controllable wind direction, characterized in that: The fan body includes a centrifugal fan body, which is fixedly connected to the mounting seat; the centrifugal fan body is provided with an air outlet, and the air outlet is rotatably connected to the wind control device, and the wind control device includes an air control box, and two inclined air guide walls are symmetrically provided in the air control box, an air inlet is provided on the air control box between one end of the two air guide walls, and an air control port is provided on the air control box between the other ends of the two air guide walls; the centrifugal fan body is provided with a fan, two slide grooves extending in a horizontal direction are symmetrically connected on both sides of the fan on the centrifugal fan body, a dust-proof device is slidably connected in the slide groove, and the dust-proof device includes a dust-proof plate, a dust-proof net is fixedly connected to the dust-proof plate, a convex strip is fixedly connected to the left front end of the dust-proof plate, and a slide bar is fixedly connected to each of the upper and lower sides of the dust-proof plate.

2. A centrifugal fan with controllable wind direction according to claim 1, characterized in that: The wind control device also includes a rotating shaft, which passes through and is fixedly connected to the wind control box. One end of the rotating shaft is rotatably connected to the centrifugal fan body, and the other end of the rotating shaft is fixedly connected to the motor output shaft. The motor is fixedly connected to the centrifugal fan body.

3. The centrifugal fan with controllable wind direction according to claim 1, characterized in that: The air control box is a hollow cylindrical body, the arc length of the air inlet is one quarter of the circumference of the bottom surface of the air control box, and the arc length of the air control port is one eighth of the circumference of the bottom surface of the air control box.

4. The centrifugal fan with controllable wind direction according to claim 1, characterized in that: The right side of the dustproof plate is arranged in an arc shape, and the centrifugal fan body is fixedly connected with an arc-shaped baffle that matches the curvature of the right side of the dustproof plate.

5. The centrifugal fan with controllable wind direction according to claim 1, characterized in that: The slot of the slide above the fan is opened downward, and the slot of the slide below the fan is opened upward. The left ends of the two slides are open, and the right ends are sealed to match the curvature of the right side of the dustproof plate.

6. The centrifugal fan with controllable wind direction according to claim 1, characterized in that: The left end and the upper and lower ends of the back side of the dustproof plate are fixedly connected with a blocking bar along the edge, and the thickness of the blocking bar is the same as the distance from the notch of the slide groove to the bottom edge of the slide groove.

7. The centrifugal fan with controllable wind direction according to claim 1, characterized in that: A magnetic strip is fixedly connected inside the baffle at the left end of the dustproof plate, and a magnetic body that is magnetically connected to the magnetic strip is fixedly connected to the centrifugal fan body.

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