Air baffle for fan

Abstract

The utility model relates to the technical field of fans, and discloses an air baffle plate for a fan, which comprises a fan main body and a mounting frame arranged at an air inlet of the fan main body, a plurality of groups of gears are respectively and rotatably mounted on the oppositely arranged inner walls of the mounting frame, the plurality of groups of gears are mutually meshed, and the plurality of groups of gears are respectively and rotatably provided with a baffle plate. Rotating rods are rotationally installed on the inner walls of the multiple sets of baffles, the rotating degree of the rotating mechanism can be adjusted and controlled through the adjusting and controlling mechanism, so that the gear drives each baffle to adjust the angle, the rotating rods and the rotating plates play a rotating role under the cooperation of the air speed of the air inlet, and the rotating plates can play a role in buffering the air speed; the fan blades on the fan body are directly impacted by reducing the wind speed, and when the wind pressure borne by the fan blades is reduced, the resistance needing to be overcome by the motor is correspondingly reduced. According to the working principle of the motor, when the load is reduced, the current consumption of the motor is also reduced, so that the rotating plate can help to reduce the current consumption of the fan by reducing the wind pressure borne by the fan blades.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a wind shield for a fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Fan is China's customary abbreviation for gas compression and gas delivery machinery. It is widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draft of boilers and industrial furnaces.

[0003] An activated carbon device is used in the paint shop. After the fan is replaced with the activated carbon device, during the production process, it is found that the current of the fan is close to or exceeds the rated current, and there is no current margin. During long-term operation, the service life of the motor is affected. High current conditions will also increase the loss of electricity, which is not conducive to energy conservation and emission reduction.

[0004] Thereby a baffle is provided for reducing the fan current. Utility Model Content

[0005] The utility model aims to provide a wind deflector for a fan, which solves the problem that an activated carbon device is used in a paint shop. After the activated carbon device is used to replace the fan, it is found during the production process that the current of the fan is close to or exceeds the rated current, and there is no current margin. During long-term operation, the service life of the motor is affected, and the high current working condition will also increase the loss of electric energy, which is not conducive to energy conservation and emission reduction.

[0006] An embodiment of the present application provides a wind deflector for a fan, comprising a fan main body and an installation frame arranged at the air inlet of the fan main body, wherein inner walls of the installation frame arranged opposite to each other are respectively rotatably installed with multiple sets of gears, the multiple sets of gears are meshed with each other, the multiple sets of gears are respectively rotatably installed with baffles, the inner walls of the multiple sets of baffles are rotatably installed with rotating rods, the outer walls of the rotating rods are fixedly connected with multiple sets of rotating plates, a rotating mechanism for rotating the baffle is arranged on one side of the installation frame, and a regulating mechanism is arranged on one side of the fan main body and the installation frame.

[0007] By adopting the above technical solution, the degree of rotation of the rotating mechanism can be adjusted by the regulating mechanism, so that the gear drives each baffle to adjust the angle, and the rotating rod and the rotating plate rotate in cooperation with the wind speed at the air inlet, and the rotating plate can buffer the wind speed, reducing the wind speed directly hitting the fan blades on the fan body. When the wind pressure on the fan blades is reduced, the resistance that the motor needs to overcome will also be reduced accordingly. According to the working principle of the motor, when the load is reduced, the current consumption of the motor will also be reduced. Therefore, by reducing the wind pressure on the fan blades, the rotating plate can help reduce the current consumption of the fan.

[0008] Optionally, a wire mesh is provided on a side of the installation frame away from the fan body, and the wire mesh and the installation frame are fixedly mounted to the shell wall of the fan body by bolts.

[0009] By adopting the above technical solution, the installation frame and the wire mesh can be installed at the air inlet position of the fan body by bolts, and the wire mesh can prevent larger impurities in the air from entering the inside of the fan body.

[0010] Optionally, the rotating mechanism includes a motor, the motor is fixedly mounted on the mounting frame, and the output shaft of the motor is fixedly connected to the rotating shaft of one of the gears.

[0011] By adopting the above technical solution, the motor can be fixed by the mounting frame, and the motor can drive the gear to rotate.

[0012] Optionally, the regulating mechanism includes a wind speed detector, which is installed on the outer wall of the fan body on the side close to the air outlet, and the sensing end of the wind speed detector extends to the inner wall of the fan body.

[0013] By adopting the above technical solution, the wind speed at the air outlet of the fan body can be detected by a wind speed detector.

[0014] Optionally, a signal transmitter is installed on the outer wall of the fan body located on one side of the wind speed detector, and a signal receiver is installed on one side of the installation frame.

[0015] By adopting the above technical solution, the data detected by the wind speed detector can be transmitted to the signal receiver through the signal transmitter.

[0016] Optionally, the wind speed detector, signal transmitter, signal receiver and motor are electrically connected.

[0017] By adopting the above technical solution, the wind speed detector, the signal transmitter, the signal receiver and the motor are electrically connected, so that the motor can play a role in regulating rotation with the cooperation of the signal transmitter and the signal receiver.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] The technical solution of the present application can adjust the degree of rotation of the rotating mechanism through the regulating mechanism, so that the gear drives each baffle to adjust the angle, and the rotating rod and the rotating plate play a role of rotation under the cooperation of the wind speed at the air inlet, and the rotating plate can buffer the wind speed, reducing the wind speed directly hitting the fan blades on the fan body. When the wind pressure on the fan blades is reduced, the resistance that the motor needs to overcome will also be reduced accordingly. According to the working principle of the motor, when the load is reduced, the current consumption of the motor will also decrease. Therefore, by reducing the wind pressure on the fan blades, the rotating plate can help reduce the current consumption of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 This is a front view schematic diagram of a wind shield for a fan according to the utility model;

[0022] Figure 2 This is a schematic diagram of a front view of a wind shield for a fan according to the utility model;

[0023] Figure 3 The utility model is a wind baffle for a fan Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 The utility model is a wind baffle for a fan Figure 3 Enlarged view of point B in the middle.

[0025] In the figure: 1. fan body; 2. wind speed detector; 3. signal transmitter; 4. motor; 5. signal receiver; 6. gear; 7. baffle; 8. rotating rod; 9. rotating plate; 10. installation frame; 11. wire mesh. DETAILED DESCRIPTION

[0026] See also Figure 1-4 The utility model provides a technical solution: a wind baffle for a fan, comprising a fan body 1 and an installation frame 10 arranged at the air inlet of the fan body 1, the inner walls of the installation frame 10 relatively arranged are respectively rotatably installed with multiple sets of gears 6, the multiple sets of gears 6 are respectively rotatably installed with baffles 7, the multiple sets of gears 6 are meshed with each other, the inner walls of the multiple sets of baffles 7 are rotatably installed with rotating rods 8, the outer walls of the rotating rods 8 are fixedly connected with multiple sets of rotating plates 9, one side of the installation frame 10 is provided with a rotating mechanism for rotating the baffle 7, the fan body 1 and one side of the installation frame 10 are provided with a regulating mechanism, the rotating mechanism includes a motor 4, the motor 4 is fixedly installed with the installation frame 10, and the output shaft of the motor 4 is fixedly connected to the rotating shaft of one of the gears 6.

[0027] In the technical solution of the utility model, the degree of rotation of the rotating mechanism can be adjusted by the regulating mechanism, so that the gear 6 drives each baffle 7 to adjust the angle, and the rotating rod 8 and the rotating plate 9 play a role of rotation under the cooperation of the wind speed at the air inlet, and the rotating plate 9 can play a buffering role on the wind speed, reducing the wind speed directly hitting the fan blades on the fan body 1. When the wind pressure on the fan blades is reduced, the resistance that the motor 4 needs to overcome will also be reduced accordingly. According to the working principle of the motor 4, when the load is reduced, the current consumption of the motor 4 will also be reduced. Therefore, by reducing the wind pressure on the fan blades, the rotating plate 9 can help reduce the current consumption of the fan.

[0028] In addition, the mounting frame 10 can fix the motor 4 , and the motor 4 can drive the gear 6 to rotate.

[0029] In the technical solution of the utility model, if Figure 1 and Figure 2 As shown, the regulating mechanism includes a wind speed detector 2, which is installed on the outer wall of the fan body 1 on the side close to the air outlet, and the sensing end of the wind speed detector 2 extends to the inner wall of the fan body 1. The wind speed of the air outlet of the fan body 1 can be detected by the wind speed detector 2. A signal transmitter 3 is installed on the outer wall of the fan body 1 on the side of the wind speed detector 2, and a signal receiver 5 is installed on one side of the installation frame 10. The data detected by the wind speed detector 2 can be transmitted to the signal receiver 5 through the signal transmitter 3. The wind speed detector 2, the signal transmitter 3, the signal receiver 5 and the motor 4 are electrically connected. By electrically connecting the wind speed detector 2, the signal transmitter 3, the signal receiver 5 and the motor 4, the motor 4 can be made to play a role in regulating the rotation with the cooperation of the signal transmitter 3 and the signal receiver 5.

[0030] In the technical solution of the utility model, if Figure 1 As shown, a wire mesh 11 is provided on the side of the mounting frame 10 away from the fan body 1, and the wire mesh 11 and the mounting frame 10 are fixed to the shell wall of the fan body 1 by bolts. The mounting frame 10 and the wire mesh 11 can be installed to the air inlet position of the fan body 1 by bolts, and the wire mesh 11 can prevent larger impurities in the air from entering the interior of the fan body 1.

[0031] When in use, first, before starting the fan inside the fan body 1, ensure that all components including the fan body 1, the baffle 7, the gear 6, the rotating rod 8, the rotating plate 9, the rotating mechanism, the regulating mechanism, etc. are correctly installed and connected, and set an upper limit threshold of the fan current. This threshold is determined based on the design specifications and operation requirements of the fan. After the fan is started, the wind speed detector 2 begins to monitor the wind speed inside the fan body 1 in real time. The wind speed detector 2 converts the detected wind speed data into an electrical signal and sends it to the signal transmitter 3. The signal transmitter 3 transmits the received wind speed signal to the signal receiver 5 on one side of the installation frame 10. After receiving the signal, the signal receiver 5 converts it into a control signal that can be recognized by the regulating mechanism. The regulating mechanism compares and analyzes the received control signal with the preset current threshold. If the current fan current is lower than the threshold, the current state of the baffle 7 is maintained unchanged. If the current fan current is close to or exceeds the threshold, the regulating mechanism sends an instruction to the rotating mechanism to adjust the angle of the baffle 7. After receiving the instruction from the regulating mechanism, the rotating mechanism starts the motor 4, and the motor 4 drives the rotating mechanism to rotate. The gear 6 connected thereto rotates, and then through the meshing relationship between the gears 6, drives the other gears 6 and the baffle 7 to rotate synchronously. The rotation of the baffle 7 will change the size of the air inlet, thereby affecting the air intake of the fan. By adjusting the angle of the wind baffle 7, the control mechanism can reduce the air intake of the fan, thereby reducing the working load and current of the fan. After adjustment, the wind speed detector 2 continues to monitor the wind speed inside the fan, and sends new wind speed data to the control mechanism. The control mechanism determines whether it is necessary to further adjust the angle of the wind baffle 7 according to the new wind speed data to achieve the purpose of reducing the fan current. When the fan current is stable below the preset threshold, the wind baffle 7 keeps the current angle unchanged, and the fan enters a stable operating state. The rotating plate 9 can buffer the wind speed, reducing the wind speed directly hitting the fan blades on the fan body 1. When the wind pressure on the fan blades is reduced, the resistance that the motor 4 needs to overcome will also be reduced accordingly. According to the working principle of the motor 4, when the load is reduced, the current consumption of the motor 4 will also be reduced. Therefore, by reducing the wind pressure on the fan blades, the rotating plate 9 can help reduce the current consumption of the fan.

Claims

1. A wind deflector for a fan, characterized in that: The invention comprises a fan body (1) and an installation frame (10) arranged at the air inlet of the fan body (1); the installation frame (10) is provided with a plurality of sets of gears (6) rotatably installed on the inner walls thereof, the plurality of sets of gears (6) are meshed with each other, the plurality of sets of gears (6) are rotatably installed with baffles (7), the inner walls of the plurality of sets of baffles (7) are rotatably installed with rotating rods (8), the outer walls of the rotating rods (8) are fixedly connected with a plurality of sets of rotating plates (9), a rotating mechanism for rotating the baffles (7) is provided on one side of the installation frame (10), and a regulating mechanism is provided on one side of the fan body (1) and the installation frame (10).

2. A wind deflector for a fan according to claim 1, characterized in that: A wire mesh (11) is provided on a side of the installation frame (10) away from the fan body (1), and the wire mesh (11) and the installation frame (10) are fixedly mounted to the shell wall of the fan body (1) by bolts.

3. A wind deflector for a fan according to claim 1, characterized in that: The rotating mechanism comprises a motor (4), the motor (4) is fixedly mounted on the mounting frame (10), and the output shaft of the motor (4) is fixedly connected to the rotating shaft of one of the gears (6).

4. A wind deflector for a fan according to claim 1, characterized in that: The regulating mechanism comprises a wind speed detector (2), which is mounted on the outer wall of the fan body (1) close to the air outlet, and the sensing end of the wind speed detector (2) extends to the inner wall of the fan body (1).

5. A wind deflector for a fan according to claim 4, characterized in that: A signal transmitter (3) is installed on the outer wall of the fan body (1) located on one side of the wind speed detector (2), and a signal receiver (5) is installed on one side of the installation frame (10).

6. A wind deflector for a fan according to claim 5, characterized in that: The wind speed detector (2), the signal transmitter (3), the signal receiver (5) and the motor (4) are electrically connected.

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