Air regulating device for centrifugal fan

Abstract

The invention discloses an air regulating device for a centrifugal fan, and relates to the technical field related to centrifugal fans, comprising a base, a motor and a filter frame are fixedly mounted on the base, a fan is rotatably mounted in the filter frame, an output end of the motor slides through the filter frame and is fixedly mounted on the fan, an air regulating frame is arranged on the base, and an adjusting component is arranged on the air regulating frame; the beneficial effects of the invention are as follows: the adjusting component drives the adjusting rod and the triangular plate to squeeze the adjusting plate by rotating the operating button, and then pulls the connecting plate to drive the sliding rod to drive the fixed plate to squeeze the first spring, and at the same time drives the limit plate to move upward, so that the operating rod drives the wind shield plate to slide in the installation groove, and then releases the connecting plate, so that the fixed plate drives the limit plate to be inserted on the operating rod, which is convenient for adjusting the wind speed of the control device, convenient for adjustment and use, and beneficial for improving the adjustment ability of the device and beneficial for improving the flexibility of the device.

Description

Technical Field

[0001] The present invention relates to the technical field related to centrifugal fans, and in particular to an air regulating device for centrifugal fans. 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 ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and air intake of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and conveying grains; wind tunnel wind source and inflation and propulsion of hovercraft.

[0003] The Chinese utility model patent with patent publication number CN215805350U is named as an air regulating device for a centrifugal fan. The device pulls out the controller body from between the bottom plate and the top plate. Under the action of the slide rail, the controller body slides out stably, and the speed of the motor is adjusted by the knob to adjust the air volume of the centrifugal fan. After adjusting the air volume, the controller body is pushed back between the bottom plate and the top plate to avoid the controller body being exposed to the external environment, thereby protecting the controller body.

[0004] There are still some shortcomings when using the above-mentioned device. When there is no time to adjust the wind speed on the controller, it is not convenient to adjust the wind speed of the control equipment, and it is not convenient to adjust and use, which affects the adjustment ability of the device and the flexibility of the device. Therefore, a wind regulating device for a centrifugal fan that can solve the above problems is proposed. Summary of the invention

[0005] The object of the present invention is to provide an air regulating device for a centrifugal fan to solve the following technical problems:

[0006] When there is no time to adjust the wind speed on the controller, it is inconvenient to adjust the wind speed of the control device, which is inconvenient to adjust and use, affecting the adjustment ability of the device and the flexibility of the device.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A wind regulating device for a centrifugal fan comprises a base, wherein a motor and a filter frame are fixedly mounted on the base, a fan is rotatably mounted in the filter frame, an output end of the motor slides through the filter frame and is fixedly mounted on the fan, an wind regulating frame is provided on the base, an adjusting component is provided on the wind regulating frame, and the adjusting component comprises an adjusting plate, the adjusting plate is rotatably mounted on a side of the wind regulating frame away from the filter frame, vents are provided on both sides of the wind regulating frame, and mounting grooves are provided on the inner walls of the vents, a wind shield is slidably mounted in the mounting groove, an adjusting rod is rotatably mounted on one end of the wind regulating frame close to the adjusting plate, a triangular plate is fixedly mounted on the adjusting rod, an operating button is fixedly mounted on one end of the adjusting rod that slides through the wind regulating frame, a limiting unit is provided on the wind regulating frame, and a fixing component and a cleaning component are provided on the base.

[0009] As a further solution of the present invention: a waist-shaped through hole is opened on the inner wall of the installation groove away from the adjustment plate, an operating rod is slidably installed in the waist-shaped through hole, and one end of the operating rod close to the triangular plate is fixedly installed on the windshield.

[0010] As a further solution of the present invention: a mounting plate is fixedly installed on the side of the air adjusting frame close to the operating rod, a sliding rod is slidably installed on the mounting plate, a fixing plate is fixedly installed on the side of the sliding rod close to the operating rod, a plurality of limiting plates are fixedly installed on the side of the fixing plate away from the sliding rod, a first spring is fixedly installed on the side of the fixing plate away from the limiting plate, and a connecting plate is fixedly installed on the end of the sliding rod away from the fixing plate.

[0011] As a further solution of the present invention: one end of the first spring away from the fixed plate is fixedly mounted on the mounting plate, the first spring is nested on the outer surface of the slide rod, and the operating rod is clamped and mounted between the two limit plates.

[0012] As a further solution of the present invention: the fixing assembly includes a bidirectional screw, a sliding groove is provided on the side of the base close to the air adjusting frame, the bidirectional screw is rotatably installed on the inner wall of the sliding groove, and a clamping plate is installed through threads on both ends of the bidirectional screw, a support plate is fixedly installed on the side of the air adjusting frame close to the clamping plate, and a clamping groove is provided on the support plate.

[0013] As a further solution of the present invention: one end of the bidirectional screw is threaded through a slide slot and a knob is fixedly installed thereon, a limiting slot is provided on the side of the filter frame close to the air regulating frame, a limiting block is fixedly installed on the side of the air regulating frame close to the fan, the limiting block is slidably inserted in the limiting slot, and the locking plate is locked and inserted into the locking slot.

[0014] As a further solution of the present invention: the cleaning assembly includes a cleaning brush, a movable groove is opened on the side of the base close to the filter frame, a slider is slidably installed in the movable groove, a mounting column is fixedly installed on the side of the slider away from the base, the cleaning brush is arranged on the mounting column, a second spring and a pull rod are fixedly installed on the slider, and the end of the pull rod away from the slider slides through the base.

[0015] As a further solution of the present invention: a groove is provided on the mounting column, a protrusion is mounted in the groove, one end of the cleaning brush away from the filter frame is fixedly mounted on the protrusion, there are two cleaning brushes, the output end of the motor is installed between the two cleaning brushes, the movable groove is provided between the motor and the filter frame, and the side of the cleaning brush away from the mounting column is slidably fitted with the side of the filter frame.

[0016] As a further solution of the present invention: one end of the second spring away from the slider is fixedly installed on the inner wall of the movable groove, a balance rod is slidably installed on the slider, both ends of the balance rod are fixedly installed on the inner wall of the movable groove, and the second spring is nested on the inner wall of the balance rod.

[0017] Beneficial effects of the present invention:

[0018] (1) The adjusting assembly drives the adjusting rod and the triangular plate to squeeze the adjusting plate by rotating the operating knob, and then pulls the connecting plate to drive the sliding rod to drive the fixed plate to squeeze the first spring, and at the same time, the fixed plate drives the limit plate to move upward, so that the operating rod drives the wind shield plate to slide in the installation groove, and then loosens the connecting plate, so that the fixed plate drives the limit plate to be inserted on the operating rod, which is convenient for adjusting the wind speed of the control device, convenient for adjustment and use, and is conducive to improving the adjustment ability of the device and the flexibility of the device;

[0019] (2) The fixing assembly drives the limit block to be inserted into the limit groove by taking the air adjustment frame, and then turns the knob to make the two-way screw thread drive the clamping plate to be inserted into the clamping groove, so as to facilitate the clamping and fixing of the air adjustment frame, facilitate installation and disassembly, improve the stability of the device, and improve the work efficiency of the device installation;

[0020] (3) The cleaning component drives the protrusion into the groove by taking the cleaning brush, and then pulls the pull rod to drive the slider to slide in the movable groove and squeeze the second spring. At the same time, the slider drives the cleaning brush to perform a cleaning operation on the filter frame, thereby avoiding the situation where the filter frame is blocked and causing damage to the device, which is beneficial to improving the cleaning ability of the device and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1It is a schematic diagram of the exploded structure of an air regulating device for a centrifugal fan of the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0026] Figure 5 It is a side structural schematic diagram of an air regulating device for a centrifugal fan of the present invention;

[0027] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure at D in the middle;

[0028] Figure 7 It is a schematic diagram of the structure of an air regulating device for a centrifugal fan according to the present invention when viewed from above;

[0029] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure at E in the middle.

[0030] In the figure: 1. base; 2. motor; 3. filter frame; 4. air adjustment frame; 5. fan; 6. adjustment component; 61. mounting slot; 62. wind shield; 63. adjustment plate; 64. adjustment rod; 65. triangle plate; 66. mounting plate; 67. connecting plate; 68. fixing plate; 69. limiting plate; 610. first spring; 611. sliding rod; 612. operating rod; 613. waist-shaped through hole; 614. operating button; 7. fixing component; 71. sliding slot; 72. two-way screw; 73. engaging plate; 74. supporting plate; 75. engaging slot; 76. knob; 77. limiting block; 78. limiting slot; 8. cleaning component; 81. movable slot; 82. sliding block; 83. balancing rod; 84. second spring; 85. pull rod; 86. mounting column; 87. cleaning brush; 88. bump; 89. groove. DETAILED DESCRIPTION

[0031] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] See also Figure 1 - Figure 8 As shown, the present invention is an air regulating device for a centrifugal fan, comprising a base 1, on which a motor 2 and a filter frame 3 are fixedly mounted, a fan 5 is rotatably mounted in the filter frame 3, the filter frame 3 plays a role in filtering dust in the air and protecting the fan 5, the output end of the motor 2 slides through the filter frame 3 and is fixedly mounted on the fan 5, a protective ring is fixedly mounted on the side of the filter frame 3 close to the motor 2, the output end of the motor 2 slides through the protective ring, an air regulating frame 4 is arranged on the base 1, an adjusting component 6 is arranged on the air regulating frame 4, the adjusting component 6 comprises an adjusting plate 63, the adjusting plate 63 is rotatably mounted on the side of the air regulating frame 4 away from the filter frame 3, the opening and closing of the adjusting plate 63 plays a role in controlling the wind speed in the vent, vents are provided on both sides of the air regulating frame 4, and an installation groove 61 is provided on the inner wall of the vent, a wind shield 62 is slidably mounted in the installation groove 61, and the wind shield 62 slides in the installation groove 61 to cooperate with the adjusting plate 63 to play a role in regulating the wind speed. An adjusting rod 64 is rotatably installed at one end of the air adjusting frame 4 close to the adjusting plate 63, and a triangular plate 65 is fixedly installed on the adjusting rod 64. An operating button 614 is fixedly installed at one end of the adjusting rod 64 that slides through the air adjusting frame 4. Turning the operating button 614 drives the adjusting rod 64 to rotate, and at the same time, the adjusting rod 64 drives the triangular plate 65 to squeeze the adjusting plate 63, so as to facilitate opening the adjusting plate 63 and facilitate operation. A limited position unit is arranged on the air adjusting frame 4, and a fixing component 7 and a cleaning component 8 are arranged on the base 1.

[0034] A waist-shaped through hole 613 is provided on the inner wall of the mounting groove 61 away from the adjusting plate 63, and an operating rod 612 is slidably installed in the waist-shaped through hole 613. The operating rod 612 slides in the waist-shaped through hole 613, which is convenient for driving the wind shield 62 to slide in the mounting groove 61, so as to adjust and control the wind speed. The end of the operating rod 612 close to the triangular plate 65 is fixedly installed on the wind shield 62, and a mounting plate 66 is fixedly installed on the side of the wind adjustment frame 4 close to the operating rod 612. A sliding rod 611 is slidably installed on the mounting plate 66, and a fixed rod 611 is fixedly installed on the side of the sliding rod 611 close to the operating rod 612. The fixed plate 68 and the slide bar 611 play the role of limiting and stabilizing the fixed plate 68. A plurality of limiting plates 69 are fixedly installed on the side of the fixed plate 68 away from the slide bar 611. A first spring 610 is fixedly installed on the side of the fixed plate 68 away from the limiting plate 69. A connecting plate 67 is fixedly installed on one end of the slide bar 611 away from the fixed plate 68. The connecting plate 67 plays the role of limiting and stabilizing the slide bar 611. One end of the first spring 610 away from the fixed plate 68 is fixedly installed on the mounting plate 66. The first spring 610 is nested on the outer surface of the slide bar 611. The first spring 610 plays the role of limiting and stabilizing the slide bar 611. In order to drive the fixing plate 68 to return to its original position elastically, the operating rod 612 is mounted between the two limiting plates 69 to limit and stabilize the position of the windshield plate 62 in the mounting groove 61. When using the device, first turn the operating button 614 to make the operating button 614 drive the adjusting rod 64 to rotate, and at the same time make the adjusting rod 64 drive the triangular plate 65 to rotate and squeeze the adjusting plate 63, and then pull the connecting plate 67 to make the connecting plate 67 drive the sliding rod 611 to slide on the mounting plate 66, and at the same time make the sliding rod 611 drive the fixing plate 68 to squeeze the first spring 610, so that the first spring 610 is in a compressed state. The windshield 62 is brought into the shrinking state, and the fixing plate 68 drives the limiting plate 69 to move upward, and then the operating rod 612 is pulled to slide in the waist-shaped through hole 613, and at the same time, the operating rod 612 drives the wind shield 62 to slide in the mounting groove 61, and then the connecting plate 67 is loosened, so that the fixing plate 68 makes the operating rod 612 inserted between the two limiting plates 69 under the elastic force of the first spring 610, so as to limit and stabilize the position of the operating rod 612, and to adjust the wind speed of the control device, which is convenient for adjustment and use, and is beneficial to improving the adjustment ability of the device and the flexibility of the device.

[0035] Embodiment 2

[0036] See also Figure 1 , Figure 3 and Figure 5As shown, the fixing assembly 7 includes a bidirectional screw 72, a slide groove 71 is provided on one side of the base 1 close to the air regulating frame 4, the bidirectional screw 72 is rotatably mounted on the inner wall of the slide groove 71, and a clamping plate 73 is installed on both ends of the bidirectional screw 72 through a thread, and a support plate 74 is fixedly installed on one side of the air regulating frame 4 close to the clamping plate 73, and a clamping groove 75 is provided on the support plate 74. The clamping plate 73 is inserted into the clamping groove 75 under the drive of the bidirectional screw 72, so as to facilitate the clamping and fixing of the air regulating frame 4 and facilitate installation and disassembly. One end of the bidirectional screw 72 is threaded through the slide groove 71 and a knob 76 is fixedly installed. A limiting groove 78 is provided on the side of the filter frame 3 close to the air regulating frame 4. The air regulating frame 4 is close to the fan 5. The locking plate 73 is inserted into the locking groove 75 so as to facilitate the locking and fixing of the air regulating frame 4, and the installation and disassembly is convenient, which is beneficial to improving the stability of the device and the installation efficiency of the device.

[0037] Embodiment 3

[0038] See also Figure 1 and Figure 4 As shown, the cleaning component 8 includes a cleaning brush 87, a movable groove 81 is opened on the side of the base 1 close to the filter frame 3, a slider 82 is slidably installed in the movable groove 81, a mounting column 86 is fixedly installed on the side of the slider 82 away from the base 1, and the cleaning brush 87 is arranged on the mounting column 86. The cleaning brush 87 plays a role in cleaning dust on the filter frame 3. A second spring 84 and a pull rod 85 are fixedly installed on the slider 82, and the end of the pull rod 85 away from the slider 82 slides through the base 1, and the pull rod 85 drives the slider 82 to slide in the movable groove 81, so as to drive the cleaning brush 87 to perform cleaning operations on the filter frame 3.

[0039] A groove 89 is provided on the mounting column 86, and a protrusion 88 is installed in the groove 89. The end of the cleaning brush 87 away from the filter frame 3 is fixedly installed on the protrusion 88. The cleaning brush 87 is inserted into the groove 89 through the protrusion 88 to be limited and fixed on the mounting column 86. There are two cleaning brushes 87. The output end of the motor 2 is installed between the two cleaning brushes 87. The movable groove 81 is provided between the motor 2 and the filter frame 3. The side of the cleaning brush 87 away from the mounting column 86 is slidably fitted with the side surface of the filter frame 3, so as to clean the dust on the filter frame 3 and avoid the situation where the dust blocks the filter frame 3 and affects the use of the device as much as possible.

[0040] The end of the second spring 84 away from the slider 82 is fixedly installed on the inner wall of the movable groove 81. The slider 82 is slidably penetrated by a balance rod 83. Both ends of the balance rod 83 are fixedly installed on the inner wall of the movable groove 81. The balance rod 83 plays a role in balancing and stabilizing the slider 82 in the movable groove 81. The second spring 84 is nested on the inner wall of the balance rod 83. The second spring 84 plays a role in driving the slider 82 to elastically reset, so that the slider 82 drives the cleaning brush 87 to reciprocate on the filter frame 3. When using the device, first take The movable cleaning brush 87 drives the protrusion 88 to be inserted into the groove 89, and then pulls the pull rod 85, so that the pull rod 85 drives the slider 82 to slide in the movable groove 81, and at the same time, the slider 82 slides on the balance rod 83 and squeezes the second spring 84, so that the second spring 84 is in a compressed state, and at the same time, the slider 82 drives the cleaning brush 87 to perform a cleaning operation on the filter frame 3, so as to facilitate the cleaning of the filter frame 3 and avoid the situation where the filter frame 3 is blocked and the damage to the device is caused, which is beneficial to improving the cleaning ability of the device and extending the service life of the device.

[0041] The working principle of the present invention is as follows: when using the device, first take the air adjustment frame 4 to drive the limit block 77 to be inserted into the limit groove 78, and at the same time, the support plate 74 is inserted into the slide groove 71, and then the knob 76 is turned to make the knob 76 drive the bidirectional screw rod 72 to rotate, and at the same time, the bidirectional screw rod 72 thread drives the locking plate 73 to slide in the slide groove 71, and at the same time, the locking plate 73 is inserted into the locking groove 75 to facilitate the locking and fixing of the air adjustment frame 4, and then the operating button 614 is turned to make the operating button 614 drive the adjusting rod 64 to rotate, and at the same time, the adjusting rod 64 drives the triangular plate 65 to rotate and squeeze the adjusting plate 63, and then the connecting plate 67 is pulled to make the connecting plate 67 drive the sliding rod 611 to slide on the mounting plate 66, and at the same time, the sliding rod 611 drives the fixing plate 68 to squeeze the first spring 610, so that the first spring 610 is in a compressed state, and at the same time, the fixing plate 68 drives the limit plate 6 9 moves upward, and then pulls the operating rod 612 to make the operating rod 612 slide in the waist-shaped through hole 613, and at the same time makes the operating rod 612 drive the wind shield plate 62 to slide in the installation groove 61, and then loosens the connecting plate 67, so that the fixing plate 68 makes the operating rod 612 inserted between the two limiting plates 69 under the elastic force of the first spring 610, which is convenient for limiting and stabilizing the position of the operating rod 612 and for adjusting the wind speed of the control device. Finally, when cleaning the filter frame 3, take the cleaning brush 87 to drive the protrusion 88 to be inserted into the groove 89, and then pull the pull rod 85 to make the pull rod 85 drive the slider 82 to slide in the movable groove 81, and at the same time make the slider 82 slide on the balance rod 83 and squeeze the second spring 84, so that the second spring 84 is in a compressed state, and at the same time makes the slider 82 drive the cleaning brush 87 to perform a cleaning operation on the filter frame 3, which is convenient for cleaning the filter frame 3.

[0042] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An air regulating device for a centrifugal fan, comprising a base, characterized in that: A motor and a filter frame are fixedly mounted on the base, a fan is rotatably mounted in the filter frame, an output end of the motor slides through the filter frame and is fixedly mounted on the fan, an air adjusting frame is provided on the base, an adjusting component is provided on the air adjusting frame, and the adjusting component includes an adjusting plate, the adjusting plate is rotatably mounted on a side of the air adjusting frame away from the filter frame, vents are provided on both sides of the air adjusting frame, and mounting grooves are provided on the inner walls of the vents, a wind shield is slidably mounted in the mounting groove, an adjusting rod is rotatably mounted on one end of the air adjusting frame close to the adjusting plate, a triangular plate is fixedly mounted on the adjusting rod, an operating button is fixedly mounted on one end of the adjusting rod that slides through the air adjusting frame, a limited position unit is provided on the air adjusting frame, and a fixing component and a cleaning component are provided on the base; A waist-shaped through hole is provided on the inner wall of the mounting groove away from the adjusting plate, an operating rod is slidably installed in the waist-shaped through hole, and an end of the operating rod close to the triangular plate is fixedly installed on the windshield plate; A mounting plate is fixedly installed on the side of the air adjustment frame close to the operating rod, a sliding rod is slidably installed on the mounting plate, a fixing plate is fixedly installed on the side of the sliding rod close to the operating rod, a plurality of limit plates are fixedly installed on the side of the fixing plate away from the sliding rod, a first spring is fixedly installed on the side of the fixing plate away from the limit plate, and a connecting plate is fixedly installed on one end of the sliding rod away from the fixing plate; One end of the first spring away from the fixing plate is fixedly mounted on the mounting plate, the first spring is nested on the outer surface of the slide rod, and the operating rod is clamped and mounted between the two limit plates; The fixing assembly includes a bidirectional screw, a slide groove is provided on one side of the base close to the air adjustment frame, the bidirectional screw is rotatably mounted on the inner wall of the slide groove, a clamping plate is installed through the threads on both ends of the bidirectional screw, a support plate is fixedly installed on one side of the air adjustment frame close to the clamping plate, and a clamping groove is provided on the support plate; One end of the bidirectional screw is threaded through a slide slot and is fixedly installed with a knob, a limiting slot is provided on a side of the filter frame close to the air regulating frame, a limiting block is fixedly installed on a side of the air regulating frame close to the fan, the limiting block is slidably inserted in the limiting slot, and the locking plate is locked and inserted into the locking slot.

2. The air regulating device for a centrifugal fan according to claim 1, characterized in that: The cleaning assembly includes a cleaning brush, a movable groove is opened on the side of the base close to the filter frame, a slider is slidably installed in the movable groove, a mounting column is fixedly installed on the side of the slider away from the base, the cleaning brush is arranged on the mounting column, a second spring and a pull rod are fixedly installed on the slider, and the end of the pull rod away from the slider slides through the base.

3. The air regulating device for a centrifugal fan according to claim 2, characterized in that: A groove is provided on the mounting column, a protrusion is mounted in the groove, one end of the cleaning brush away from the filter frame is fixedly mounted on the protrusion, there are two cleaning brushes, the output end of the motor is mounted between the two cleaning brushes, the movable groove is provided between the motor and the filter frame, and the side of the cleaning brush away from the mounting column is slidably fitted with the side surface of the filter frame.

4. The air regulating device for a centrifugal fan according to claim 3, characterized in that: One end of the second spring away from the slider is fixedly installed on the inner wall of the movable groove, a balance bar is slidably installed on the slider, both ends of the balance bar are fixedly installed on the inner wall of the movable groove, and the second spring is nested on the inner wall of the balance bar.

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