Energy-saving circular flow channel type fan

Abstract

The utility model relates to the technical field of fans, and discloses an energy-saving circular runner type fan which comprises a fan body and an air outlet pipe, the left side of the top end of the fan body is fixedly connected with the air outlet pipe, an air outlet is formed in the left side of the air outlet pipe, and an adjusting mechanism is arranged in the air outlet. The adjusting mechanism comprises a first motor, a first gear, second gears, a rotating rod and an adjusting plate, the rear side of the air outlet pipe is fixedly connected with the first motor, the output end of the first motor is connected with the first gear through a coupler, the upper side and the lower side of the first gear are in meshed connection with the second gears, and the front sides of the second gears are fixedly connected with the rotating rod; the front end of the rotating rod extends into the air outlet pipe and is rotationally connected with the pipe wall of the front side in the air outlet pipe, and the outer surface of the rotating rod is fixedly connected with an adjusting plate. According to the utility model, air at the air outlet can be subjected to flow guide treatment according to actual requirements, so that the use effect of the fan body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to an energy-saving circular flow channel type fan. Background Technique

[0002] A fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. The main structural components of the fan are the impeller, the casing, the air inlet, the bracket, the motor, the pulley, the coupling, the silencer, the transmission parts (bearings), etc. It is mainly used for ventilation and air change in various fields of the national economy such as metallurgy, petrochemical, electric power, urban rail transit, textile, ship, etc. and various places.

[0003] For example, the patent document of CN215333642U discloses a centrifugal fan, which includes a casing, a fan impeller arranged in the casing, and an air outlet pipe arranged on the casing. A first air inlet is arranged on one side of the fan impeller. An air inlet plate is arranged at the first air inlet, and a first filter screen is arranged at the center of the air inlet plate; a return pipe is detachably installed on the side wall of the air outlet pipe, and a return port is arranged on the side wall of the return pipe; a plurality of second air inlets are also arranged on the side wall of the casing, and a second filter screen is arranged at each second air inlet; however, there are still many deficiencies in this prior art. For example, the air volume at the air outlet of the fan cannot be adjusted according to the actual situation, which reduces the use effect of the fan. Content of the Utility Model

[0004] The purpose of the utility model is to provide an energy-saving circular flow channel type fan to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An energy-saving circular flow channel type fan, including a fan body and an air outlet pipe. The left side of the top of the fan body is fixedly connected with the air outlet pipe. An air outlet is arranged on the left side of the air outlet pipe. An adjusting mechanism is arranged inside the air outlet. The adjusting mechanism includes a first motor, a first gear, a second gear, a rotating rod and an adjusting plate. The first motor is fixedly connected to the rear side of the air outlet pipe. The output end of the first motor is connected with the first gear through a coupling. The upper and lower sides of the first gear are both meshed with the second gear. The front side of the second gear is fixedly connected with the rotating rod. The front end of the rotating rod extends into the air outlet pipe and is rotatably connected with the front side wall inside the air outlet pipe. The adjusting plate is fixedly connected to the outer surface of the rotating rod.

[0006] As a further improvement of the above solution, the right end of the adjusting plate is fixedly connected with a guide plate through a bolt, and the guide plate is an arc-shaped plate.

[0007] As a further improvement to the above solution, a number of sound-absorbing bumps are evenly arranged circumferentially inside the fan body, and a number of sound-absorbing grooves are evenly opened circumferentially inside the fan body. The aforenamed sound-absorbing bumps and sound-absorbing grooves are arranged alternately.

[0008] As a further improvement to the above solution, through holes are symmetrically opened vertically and horizontally at the rear side of the air outlet pipe. A sealing ring is fixedly connected inside the through hole, and the rotating rod is rotatably connected inside the sealing ring.

[0009] As a further improvement to the above solution, a first support frame is fixedly connected to the outside of the fan body, and a second support frame is fixedly connected to the right side of the first support frame.

[0010] As a further improvement to the above solution, a second motor is placed on the top end of the second support frame. The output end of the second motor is connected with a driving wheel through a coupling. The left side of the driving wheel is connected with a driven wheel through belt transmission. A connecting shaft is fixedly connected to the front side of the driven wheel. The front end of the connecting shaft extends into the fan body and is fixedly connected with an impeller.

[0011] As a further improvement to the above solution, a pulley cover is fixedly connected to the outside of the belt, and a cover plate is fixedly connected to the front side of the pulley cover.

[0012] As a further improvement to the above solution, a connecting piece is fixedly connected to the front side of the fan body, and an inlet bell is fixedly connected inside the connecting piece.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, an adjusting mechanism is arranged inside the air outlet. The adjusting mechanism includes a first motor, a first gear, a second gear, a rotating rod and an adjusting plate. When it is necessary to divert the gas at the air outlet, the first motor is started. The first motor drives the first gear to rotate. The first gear drives the two second gears engaged therewith to rotate. The second gear drives the rotating rod to rotate. The rotating rod drives the adjusting plate to rotate, so as to adjust the angle of the adjusting plate. The adjusting plate adjusts the air outlet area at the air outlet, thereby changing the air volume at the air outlet, so that the gas at the air outlet can be processed according to actual needs, thereby improving the use effect of the fan body. Further, by arranging a flow guiding plate, the flow guiding plate is similar to the flow direction of the air body in the air outlet pipe, playing a role in flow guiding, thereby avoiding local uneven flow, reducing wind power loss, and improving the air outlet performance of the fan. Description of the Drawings

[0015] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic perspective view of the first perspective structure of the present utility model;

[0017] Figure 2 It is a schematic perspective view of the second perspective structure of the present utility model;

[0018] Figure 3 is Figure 2 a schematic perspective view after removing the pulley cover;

[0019] Figure 4 It is a front view of the internal structure of the fan body in the present utility model;

[0020] Figure 5 It is a left view of the internal structure of the air outlet pipe in the present utility model;

[0021] Figure 6 It is a front view of the internal structure of the fan body in Embodiment 2 of the present utility model.

[0022] In the figure: 1. Fan body; 2. Air outlet pipe; 3. Air outlet; 4. Adjusting mechanism; 41. First motor; 42. First gear; 43. Second gear; 44. Rotating rod; 45. Adjusting plate; 5. Deflector; 6. Sound-absorbing bump; 7. Sound-absorbing groove; 8. Through hole; 9. Sealing ring; 10. First support frame; 11. Second support frame; 12. Second motor; 13. Driving wheel; 14. Belt; 15. Driven wheel; 16. Connecting shaft; 17. Impeller; 18. Pulley cover; 19. Cover plate; 20. Connecting piece; 21. Inlet bell. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Embodiment 1

[0024] An energy-saving circular flow channel type fan, such as Figure 1 , Figure 2 , Figure 3 , Figure 5As shown in the figure, it includes a fan body 1 and an air outlet pipe 2. The left side of the top of the fan body 1 is fixedly connected with the air outlet pipe 2. An air outlet 3 is opened on the left side of the air outlet pipe 2. An adjusting mechanism 4 is arranged inside the air outlet 3. The adjusting mechanism 4 includes a first motor 41, a first gear 42, a second gear 43, a rotating rod 44 and an adjusting plate 45. The first motor 41 is fixedly connected to the rear side of the air outlet pipe 2. The output end of the first motor 41 is connected with the first gear 42 through a coupling. The upper and lower sides of the first gear 42 are both meshed with the second gear 43. The front side of the second gear 43 is fixedly connected with the rotating rod 44. The front end of the rotating rod 44 extends into the air outlet pipe 2 and is rotatably connected with the inner front side wall of the air outlet pipe 2. The adjusting plate 45 is fixedly connected to the outer surface of the rotating rod 44. Through holes 8 are symmetrically opened on the upper and lower sides of the rear side of the air outlet pipe 2. A sealing ring 9 is fixedly connected inside the through hole 8. The rotating rod 44 is rotatably connected inside the sealing ring 9. When it is necessary to divert the gas at the air outlet 3, start the first motor 41. The first motor 41 drives the first gear 42 to rotate. The first gear 42 drives the two meshed second gears 43 to rotate. The second gear 43 drives the rotating rod 44 to rotate. The rotating rod 44 drives the adjusting plate 45 to rotate, so as to adjust the angle of the adjusting plate 45. The adjusting plate 45 adjusts the air outlet area at the air outlet 3, thereby changing the air volume at the air outlet 3, so that the gas at the air outlet 3 can be processed according to actual needs, thus improving the use effect of the fan body 1.

[0025] As Figure 4 shown, a plurality of sound-absorbing bumps 6 are evenly arranged circumferentially inside the fan body 1. A plurality of sound-absorbing grooves 7 are evenly opened circumferentially inside the fan body 1. The plurality of sound-absorbing bumps 6 and the plurality of sound-absorbing grooves 7 are arranged alternately. The noise generated when the impeller 17 rotates is eliminated and adsorbed through the sound-absorbing bumps 6 and the sound-absorbing grooves 7.

[0026] As Figure 1 、 Figure 2 、 Figure 3As shown in the figure, a first support frame 10 is fixedly connected to the outside of the fan body 1, and a second support frame 11 is fixedly connected to the right side of the first support frame 10. A second motor 12 is placed on the top of the second support frame 11. The output end of the second motor 12 is connected to a driving wheel 13 through a coupling. The left side of the driving wheel 13 is drivingly connected to a driven wheel 15 through a belt 14. A connecting shaft 16 is fixedly connected to the front side of the driven wheel 15. The front end of the connecting shaft 16 extends into the fan body 1 and is fixedly connected to an impeller 17. A pulley cover 18 is fixedly connected to the outside of the belt 14, and a cover plate 19 is fixedly connected to the front side of the pulley cover 18. When the second motor 12 is started, the second motor 12 drives the driving wheel 13 to rotate. The driving wheel 13 drives the driven wheel 15 to rotate through the belt 14. The driven wheel 15 drives the impeller 17 to rotate through the connecting shaft 16. The gas generated by the rotation of the impeller 17 is discharged from the air outlet 3.

[0027] As Figure 1 shown, a connecting piece 20 is fixedly connected to the front side of the fan body 1. An inlet bell 21 is fixedly connected to the inside of the connecting piece 20. An air inlet is provided in the middle of the inlet bell 21. The air inlet is communicated with the inside of the fan body 1. When the impeller 17 rotates, the gas enters the inside of the fan body 1 from the air inlet.

[0028] During the operation of Embodiment 1, the second motor 12 is started. The second motor 12 drives the driving wheel 13 to rotate. The driving wheel 13 drives the driven wheel 15 to rotate through the belt 14. The driven wheel 15 drives the impeller 17 to rotate through the connecting shaft 16. The gas generated by the rotation of the impeller 17 enters the air outlet pipe 2 and is discharged from the air outlet 3. The noise generated when the impeller 17 rotates is eliminated and adsorbed through the sound-absorbing convex blocks 6 and the sound-absorbing grooves 7. When it is necessary to divert the gas at the air outlet 3, the first motor 41 is started. The first motor 41 drives the first gear 42 to rotate. The first gear 42 drives the two second gears 43 engaged with it to rotate. The second gears 43 drive the rotating rod 44 to rotate. The rotating rod 44 drives the adjusting plate 45 to rotate, thereby adjusting the angle of the adjusting plate 45. The adjusting plate 45 adjusts the air outlet area at the air outlet 3, thereby changing the air volume at the air outlet 3, so that the gas at the air outlet 3 can be processed according to actual needs, thereby improving the use effect of the fan body 1. Embodiment 2

[0029] On the basis of Embodiment 1, as Figure 6 shown, the right end of the adjusting plate 45 is fixedly connected to a guide plate 5 through a bolt. The guide plate 5 is an arc-shaped plate. The guide plate 5 is similar to the flow direction of the air body in the air outlet pipe 2, playing a role in guiding, thereby avoiding local uneven flow, reducing wind power loss, and improving the air outlet performance of the fan.

[0030] When Example 2 works, the flow deflector 5 is close to the flow direction of the air body in the air outlet pipe 2, playing a role in guiding the flow, thereby avoiding local uneven flow, reducing wind power loss, and improving the air outlet performance of the fan.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving circular flow channel fan, comprising a fan body (1) and an air outlet pipe (2), characterized in that: The air outlet pipe (2) is fixedly connected to the left side of the top end of the fan body (1), an air outlet (3) is opened on the left side of the air outlet pipe (2), an adjustment mechanism (4) is arranged inside the air outlet (3), and the adjustment mechanism (4) comprises a first motor (41), a first gear (42), a second gear (43), a rotating rod (44) and an adjustment plate (45). The first motor (41) is fixedly connected to the rear side of the air outlet pipe (2), the output end of the first motor (41) is connected to the first gear (42) via a coupling, the upper and lower sides of the first gear (42) are meshedly connected to the second gear (43), the front side of the second gear (43) is fixedly connected to the rotating rod (44), the front end of the rotating rod (44) extends to the inside of the air outlet pipe (2) and is rotatably connected to the inner front side pipe wall of the air outlet pipe (2), and the outer surface of the rotating rod (44) is fixedly connected to the adjustment plate (45).

2. The energy-saving circular flow channel fan according to claim 1, characterized in that: The right end of the adjustment plate (45) is fixedly connected to a guide plate (5) via bolts, and the guide plate (5) is an arc-shaped plate.

3. The energy-saving circular flow channel fan according to claim 1, characterized in that: A plurality of silencer protrusions (6) are evenly arranged in an annular direction inside the fan body (1), and a plurality of silencer grooves (7) are evenly opened in an annular direction inside the fan body (1), and the plurality of silencer protrusions (6) and the plurality of silencer grooves (7) are arranged alternately.

4. The energy-saving circular channel fan according to claim 1, characterized in that: A through hole (8) is symmetrically provided on the rear side of the air outlet pipe (2) in the upper and lower parts, a sealing ring (9) is fixedly connected to the inside of the through hole (8), and the rotating rod (44) is rotatably connected to the inside of the sealing ring (9).

5. The energy-saving circular channel fan according to claim 1, characterized in that: A first support frame (10) is fixedly connected to the outside of the fan body (1), and a second support frame (11) is fixedly connected to the right side of the first support frame (10).

6. The energy-saving circular channel fan according to claim 5, characterized in that: A second motor (12) is placed at the top end of the second support frame (11); the output end of the second motor (12) is connected to a driving wheel (13) via a coupling; the left side of the driving wheel (13) is connected to a driven wheel (15) via a belt (14); the front side of the driven wheel (15) is fixedly connected to a connecting shaft (16); the front end of the connecting shaft (16) extends into the interior of the fan body (1) and is fixedly connected to an impeller (17).

7. The energy-saving circular channel fan according to claim 6, characterized in that: A pulley cover (18) is fixedly connected to the outer side of the belt (14), and a cover plate (19) is fixedly connected to the front side of the pulley cover (18).

8. The energy-saving circular channel fan according to claim 1, characterized in that: A connecting piece (20) is fixedly connected to the front side of the fan body (1), and an inlet bell (21) is fixedly connected to the interior of the connecting piece (20).

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