An energy-saving centrifugal fan with dust removal function

Abstract

This invention relates to the field of centrifugal fan technology, specifically an energy-saving centrifugal fan with dust removal function. It includes a fan housing, an impeller mounted on the inner side of the fan housing, a support base rotatably connected to the side of the fan housing, a dust removal structure on the side of the fan housing, a drive structure on the dust removal structure, a rotating structure on the inner side of the fan housing, a support structure connecting the support base and the fan housing, and an air outlet structure at the end of the fan housing. A directional adjustment structure connects the air outlet structure to the fan housing. The dust removal structure allows for quick switching of the centrifugal fan's dust removal function; the drive structure allows for convenient control of the opening and closing of the filter plate; the rotating structure allows for quick adjustment of the vertical air outlet direction of the centrifugal fan; the air outlet structure further enhances the adjustment range of the air outlet direction; and the directional adjustment structure allows for control of the rotation angle of the guide plate.

Description

Technical Field

[0001] This invention relates to the field of centrifugal fan technology, specifically to an energy-saving centrifugal fan with dust removal function. Background Technology

[0002] Centrifugal fans are fluid machines that rely on input mechanical energy to increase gas pressure and discharge gas. They are widely used in HVAC, industrial production, building ventilation, and material handling. In industrial production, especially in environments with large amounts of dust, such as mining, metallurgy, building materials, and chemical industries, centrifugal fans are often used as the core power equipment for dust removal systems.

[0003] Existing dust collectors typically filter the air entering the fan by attaching a filter bag to the inlet when handling dusty environments. However, when dust collection is not required, the filter bag can affect the centrifugal fan's air intake efficiency, necessitating its removal. This process involves repeated bag removal and installation, which is cumbersome. Furthermore, prolonged use of the filter structure can lead to dust accumulation on its surface, increasing airflow resistance and causing the fan to consume more energy to maintain the original airflow, resulting in energy waste. Additionally, existing centrifugal fans are usually fixed to a frame, requiring the entire fan to be rotated to adjust the airflow direction, which lacks flexibility. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides an energy-saving centrifugal fan with dust removal function.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an energy-saving centrifugal fan with dust removal function, including a fan housing, an impeller installed on the inner side of the fan housing, a support base rotatably connected to the side of the fan housing, a dust removal structure provided on the side of the fan housing, a drive structure provided on the dust removal structure, a rotating structure provided on the inner side of the fan housing, a support structure connected between the support base and the fan housing, an air outlet structure provided at the end of the fan housing, and a direction adjustment structure connected between the air outlet structure and the fan housing.

[0006] Specifically, the dust removal structure includes a filter box, which is fixedly connected to the side of the support base. The end of the filter box is rotatably connected to the fan housing. Two filter plates are symmetrically arranged on the inner side of the filter box. The filter plates are made of non-woven fabric and are rotatably connected to the filter box. A torsion spring is fixedly connected between the filter plates and the filter box. A guide groove is provided on the filter box. A cleaning roller is slidably connected to the filter box through the guide groove. The side of the cleaning roller abuts against the corresponding filter plate.

[0007] Specifically, a toothed plate is fixedly connected to the top and bottom sides of the air filter box. The toothed plate has a "U" shaped structure. A first gear is fixedly connected to the end of the cleaning roller. The first gear meshes with the inner side of the toothed plate. A traction plate is slidably connected to the top side of the toothed plate. The end of the cleaning roller is rotatably connected to the adjacent end of the traction plate.

[0008] Specifically, the drive structure includes a drive frame, with the drive frame rotatably connected between the two toothed plates. The middle part of the drive frame is rotatably connected to the air filter box. Limiting grooves are respectively opened at both ends of the drive frame. The traction plate has a "T" shaped structure. The bottom side of the traction plate is slidably connected to the air filter box. The end of the traction plate is slidably connected to the drive frame through the limiting groove. A plug-in rod is slidably connected to the end of the drive frame. A first spring is fixedly connected between the plug-in rod and the drive frame. A plug-in hole is opened on the toothed plate.

[0009] Specifically, the rotating structure includes a gear groove, which is provided on the side of the fan housing. A second gear is rotatably connected to the inner side of the support base. The second gear meshes with the fan housing through the gear groove. The diameter of the second gear is smaller than the diameter of the gear groove. A brake block is slidably connected to the inner side of the support base. The top side of the brake block meshes with the fan housing through the gear groove. A cam rod passes through the middle of the brake block. The cam rod is rotatably connected to the support base. The middle part of the cam rod has a cam structure, and the middle part of the cam rod abuts against the inner side of the brake block.

[0010] Specifically, a third spring is fixedly connected between the brake block and the support base, a telescopic rod is slidably connected to the end of the cam rotor, a fourth spring is fixedly connected between the end of the telescopic rod and the cam rotor, an insertion protrusion is fixedly connected to the end of the telescopic rod, a positioning hole is provided on the side of the support base, and the insertion protrusion engages with the support base through the positioning hole.

[0011] Specifically, the support structure includes an adjusting screw, which is rotatably connected to the bottom side of the support base. The threads at both ends of the adjusting screw are arranged in opposite directions. A pushing rod is threaded to each end of the adjusting screw. The end of the pushing rod is slidably connected to the support base. A support slide is provided on the side of the pushing rod. Multiple second springs are fixedly connected between the support slide and the pushing rod. A connecting rod is rotatably connected to each end of the support slide. A support roller is rotatably connected to the other end of the connecting rod. The side of the support roller abuts against the bottom side of the fan housing.

[0012] Specifically, the air outlet structure includes air guide plates. Multiple air guide plates are rotatably connected to the end of the fan housing. The multiple air guide plates are arranged equidistantly in sequence. A rocking rod is fixedly connected to the top side of the air guide plate. Multiple rocking grooves are opened on the inner side of the fan housing corresponding to the air guide plates. The rocking grooves have an arc-shaped structure. The rocking rods are slidably connected to the fan housing through the rocking grooves.

[0013] Specifically, a synchronous slide rod is slidably connected to the end of the fan housing, and multiple drive slots are provided on the bottom side of the synchronous slide rod. The drive slots are arranged in a one-to-one correspondence with the air guide plate, and the top of the rocker arm is slidably connected to the synchronous slide rod through the drive slots.

[0014] Specifically, the directional adjustment structure includes a lead screw, which is rotatably connected to the side of the fan housing. A drive slider is threadedly connected to the middle of the lead screw. The bottom side of the drive slider is slidably connected to the top side of the synchronous slide rod. Sixth springs are fixedly connected to both ends of the synchronous slide rod and the fan housing, respectively.

[0015] Specifically, a release block is slidably connected to the middle of the drive slider, and a fifth spring is fixedly connected between the end of the release block and the drive slider. A locking groove is provided on the top side of the synchronous slide rod, and the locking groove has a "T" shaped structure. The bottom end of the release block is slidably connected to the synchronous slide rod through the locking groove.

[0016] The beneficial effects of this invention are: (1) The present invention provides an energy-saving centrifugal fan with dust removal function. The side of the fan shell is provided with a dust removal structure and a drive structure is provided on the dust removal structure. The dust removal structure can quickly switch the dust removal function of the centrifugal fan, and the drive structure can conveniently control the opening and closing of the filter plate.

[0017] (2) The energy-saving centrifugal fan with dust removal function described in this invention has a rotating structure on the inner side of the fan shell. The air outlet direction of the centrifugal fan in the vertical plane can be quickly adjusted by the rotating structure.

[0018] (3) The energy-saving centrifugal fan with dust removal function described in this invention has a support structure connected between the support base and the fan shell. The support structure can provide support for different rotation positions of the fan shell, ensuring the overall stability of the centrifugal fan.

[0019] (4) The present invention provides an energy-saving centrifugal fan with dust removal function. The end of the fan casing is provided with an air outlet structure. The air outlet structure is connected to the fan casing with an adjustment structure. The air outlet structure can be used to further adjust the air outlet direction of the fan and improve the adjustment range. The adjustment structure can be used to conveniently control the rotation angle of the air guide plate. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the support base and the fan housing of the present invention; Figure 3 This is a schematic diagram of the air filter box of the present invention; Figure 4 for Figure 3 The diagram shows an enlarged view of part A. Figure 5 This is a schematic diagram of the connection structure between the air filter box and the air filter plate of the present invention; Figure 6 This is a schematic diagram of the connection structure between the fan housing and the support roller of the present invention; Figure 7 for Figure 7 The diagram shows an enlarged view of part B. Figure 8 This is a schematic diagram of the connection structure between the support base and the second gear of the present invention; Figure 9 This is a schematic diagram of the connection structure between the support base and the brake block of the present invention; Figure 10 for Figure 9 The diagram shows an enlarged view of section C. Figure 11 This is a schematic diagram of the connection structure between the fan housing and the air guide plate of the present invention; Figure 12 for Figure 11 A schematic diagram of the enlarged structure of part D; Figure 13 for Figure 11 A schematic diagram of the enlarged structure of part E; Figure 14 This is a schematic diagram of the synchronous slide bar of the present invention.

[0022] In the diagram: 1. Fan casing; 2. Dust removal structure; 201. Air filter box; 202. Air filter plate; 203. Traction plate; 204. Geared plate; 205. Guide groove; 206. Cleaning roller; 207. First gear; 208. Torsion spring; 3. Drive structure; 301. Drive frame; 302. Insertion hole; 303. Insertion rod; 304. First spring; 305. Limiting slide groove; 4. Air outlet structure; 401. Air guide plate; 402. Swing rod; 403. Drive groove; 404. Swing groove; 405. Synchronous slide rod; 5. Support base; 6. Impeller; 7. Support structure 701. Support roller; 702. Adjusting screw; 703. Connecting rod; 704. Support slide bar; 705. Pushing rod; 706. Second spring; 8. Rotating structure; 801. Gear groove; 802. Brake block; 803. Cam crank; 804. Third spring; 805. Second gear; 806. Telescopic crank; 807. Fourth spring; 808. Positioning hole; 809. Insertion protrusion; 9. Adjusting structure; 901. Lead screw; 902. Drive slider; 903. Release block; 904. Fifth spring; 905. Locking groove; 906. Sixth spring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] like Figure 1 , Figure 4 , Figure 6 , Figure 7 , Figure 13 As shown, the present invention provides an energy-saving centrifugal fan with dust removal function, comprising a fan housing 1, an impeller 6 installed on the inner side of the fan housing 1, a support base 5 rotatably connected to the side of the fan housing 1, a dust removal structure 2 provided on the side of the fan housing 1, a drive structure 3 provided on the dust removal structure 2, a rotating structure 8 provided on the inner side of the fan housing 1, a support structure 7 connected between the support base 5 and the fan housing 1, an air outlet structure 4 provided at the end of the fan housing 1, and a directional adjustment structure 9 connected between the air outlet structure 4 and the fan housing 1.

[0025] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the dust removal structure 2 includes a filter box 201. The filter box 201 is fixedly connected to the side of the support base 5. The end of the filter box 201 is rotatably connected to the fan housing 1. Two filter plates 202 are symmetrically arranged on the inner side of the filter box 201. The filter plates 202 are made of non-woven fabric and are rotatably connected to the filter box 201. A torsion spring 208 is fixedly connected between the filter plates 202 and the filter box 201. A guide groove 205 is provided on the filter box 201. The filter box 201 passes through the guide groove 205. A cleaning roller 206 is slidably connected to the air filter 202. The side of the cleaning roller 206 abuts against the corresponding air filter plate 202. A toothed plate 204 is fixedly connected to the top and bottom sides of the air filter box 201. The toothed plate 204 has a "U" shaped structure. A first gear 207 is fixedly connected to the end of the cleaning roller 206. The first gear 207 meshes with the inner side of the toothed plate 204. A traction plate 203 is slidably connected to the top side of the toothed plate 204. The end of the cleaning roller 206 is rotatably connected to the adjacent end of the traction plate 203. When the impeller 6 rotates, air enters the inner side of the fan housing 1 through the air filter box 201, achieving an air delivery effect. Two rotatable filter plates 202 are located at the inlet of the air filter box 201. The filter plates 202 are made of non-woven fabric and can effectively filter large particles of dust in factory production environments. When the two filter plates 202 are closed, the air entering the air filter box 201 undergoes preliminary filtration through the filter plates 202 before entering the fan housing 1, achieving a dust filtration effect. A cleaning roller 206 is located on the side of the filter plate 202, and the surface of the cleaning roller 206 has a soft bristle structure. The cleaning roller 206 is guided by a guide groove 205 to the air filter... The box 201 is slidably connected, and in conjunction with the torsion spring 208 at the end of the filter plate 202, the cleaning roller 206 can ensure that the filter plates 202 are parallel and aligned, achieving a good sealing effect and filtering the incoming air. When the filtration function is not needed, the filter plate 202 can be rotated to one side by sliding the cleaning roller 206 along the guide groove 205. At this time, the filter plate 202 no longer blocks the incoming air, ensuring the air delivery effect of the centrifugal fan. At the same time, the air inlet side of the filter plate 202 can be cleaned while the cleaning roller 206 is moving, ensuring the filtration effect of dust and good air passage, so that the centrifugal fan has an energy-saving effect when performing the dust removal function.

[0026] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the drive structure 3 includes a drive frame 301, with the drive frame 301 rotatably connected between two toothed plates 204. The middle part of the drive frame 301 is rotatably connected to the air filter box 201. Limiting grooves 305 are respectively opened at both ends of the drive frame 301. The traction plate 203 has a "T" shaped structure. The bottom side of the traction plate 203 is slidably connected to the air filter box 201. The end of the traction plate 203 is slidably connected to the drive frame 301 through the limiting grooves 305. A plug-in rod 303 is slidably connected to the end of the drive frame 301. A first spring 304 is fixedly connected between the plug-in rod 303 and the drive frame 301. A plug-in hole 302 is opened on the toothed plate 204. When the filter plate 202 needs to be opened, the user can rotate the drive frame 301 located on the toothed plate 204. When the drive frame 301 rotates, it will pull the traction plate 203 through the limiting slide groove 305, thereby driving the cleaning rollers 206 on both sides to slide along the guide groove 205. During this process, the first gear 207 set at both ends of the cleaning roller 206 will mesh with the toothed structure opened on both sides of the toothed plate 204, so that the cleaning roller 206 will rotate during the movement, further improving the cleaning effect of the cleaning roller 206 on the surface of the filter plate 202. When the drive frame 301 rotates to the position of the insertion hole 302 on the toothed plate 204, the insertion rod 303 at the end of the drive frame 301 can be engaged with the insertion hole 302 to keep the filter plate 202 in the open state and realize the rapid switching of the filtration effect.

[0027] Specifically, such as Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, the rotating structure 8 includes a gear groove 801. The gear groove 801 is provided on the side of the fan housing 1. A second gear 805 is rotatably connected to the inner side of the support base 5. The second gear 805 meshes with the fan housing 1 through the gear groove 801. The diameter of the second gear 805 is smaller than the diameter of the gear groove 801. A brake block 802 is slidably connected to the inner side of the support base 5. The top side of the brake block 802 meshes with the fan housing 1 through the gear groove 801. A cam rotor 803 passes through the middle of the brake block 802. The cam rotor 803 is rotatably connected to the support base 5. The cam rotor 803 has a cam structure in the middle. The middle of the cam rotor 803 abuts against the inner side of the brake block 802. A third spring 804 is fixedly connected between the brake block 802 and the support seat 5. A telescopic rotor 806 is slidably connected to the end of the cam rotor 803. A fourth spring 807 is fixedly connected between the end of the telescopic rotor 806 and the cam rotor 803. A plug-in protrusion 809 is fixedly connected to the end of the telescopic rotor 806. A positioning hole 808 is opened on the side of the support seat 5. The plug-in protrusion 809 is engaged with the support seat 5 through the positioning hole 808. The airflow direction of the centrifugal fan in the vertical plane can be adjusted by rotating the fan housing 1. For easy adjustment, a gear groove 801 is provided on the side of the fan housing 1. By rotating the smaller diameter second gear 805, the fan housing 1 can be rotated through the gear groove 801. At the same time, a brake block 802 is provided on the bottom side of the gear groove 801 on the fan housing 1. The top of the brake block 802 has a toothed structure that meshes with the gear groove 801 to position the fan housing 1. Then, the user needs to pull the telescopic rod 806 on the bottom side and rotate the telescopic rod 806 180°. At this time, the insertion protrusion 809 on the side of the telescopic rod 806 will engage with another positioning hole 808 and the support seat 5. At the same time, the telescopic rod 806 will drive the cam rod 803 to rotate during this process, so that the cam structure in the middle of the cam rod 803 rotates to abut against the inner side of the brake block 802. At this time, the brake block 802 can maintain the abutment state between itself and the gear groove 801, maintaining the current rotation angle of the fan housing 1.

[0028] Specifically, such as Figure 2 , Figure 6 , Figure 12 As shown, the support structure 7 includes an adjusting screw 702. The adjusting screw 702 is rotatably connected to the bottom side of the support base 5. The threads at both ends of the adjusting screw 702 are arranged in opposite directions. A pushing rod 705 is threadedly connected to each end of the adjusting screw 702. The end of the pushing rod 705 is slidably connected to the support base 5. A support slide rod 704 is provided on the side of the pushing rod 705. A plurality of second springs 706 are fixedly connected between the support slide rod 704 and the pushing rod 705. A connecting rod 703 is rotatably connected to each end of the support slide rod 704. A support roller 701 is rotatably connected to the other end of the connecting rod 703. The side of the support roller 701 abuts against the bottom side of the fan housing 1. Due to the structural characteristics of the fan housing 1, when the fan housing 1 is rotated to different angles, the user can rotate the adjusting screw 702 located in the middle of the support base 5, which will drive the two pushing rods 705 on both sides to move in opposite directions. The sides of the pushing rods 705 are connected to the support slide rods 704 through multiple second springs 706. When the support slide rods 704 move, they will drive the connecting rods 703 between them and the support rollers 701 to rotate, thereby adjusting the support height of the support rollers 701. Due to the buffering effect of the second springs 706, the support rollers 701 can provide better support for the fan housing 1 while also having a certain buffering effect. Combined with the soft material on the outside of the support rollers 701, the noise generated during the operation of the centrifugal fan can be reduced.

[0029] Specifically, such as Figure 1 , Figure 11 , Figure 13, Figure 14 As shown, the air outlet structure 4 includes an air guide plate 401. Multiple air guide plates 401 are rotatably connected to the end of the fan housing 1. The multiple air guide plates 401 are arranged equidistantly in sequence. A rocker arm 402 is fixedly connected to the top side of the air guide plate 401. Multiple rocker grooves 404 are opened on the inner side of the fan housing 1 corresponding to the air guide plate 401. The rocker grooves 404 have an arc-shaped structure. The rocker arm 402 is slidably connected to the fan housing 1 through the rocker grooves 404. A synchronous slide rod 405 is slidably connected to the end of the fan housing 1. Multiple drive grooves 403 are opened on the bottom side of the synchronous slide rod 405. The drive grooves 403 are arranged one-to-one with the air guide plates 401. The top of the rocker arm 402 is slidably connected to the synchronous slide rod 405 through the drive grooves 403. To further facilitate the adjustment of different air outlet directions of the centrifugal fan, multiple air guide plates 401 are provided at the air outlet of the fan housing 1. The air guide plates 401 can rotate to guide the exhaust air. A synchronous slide rod 405 is provided at the end of the fan housing 1. When the synchronous slide rod 405 slides, the drive groove 403 on the bottom side of the synchronous slide rod 405 will drive the swing rod 402 at the top of the air guide plate 401 to slide along the swing groove 404, thereby realizing the synchronous rotation of all air guide plates 401, controlling the air outlet direction. Combined with the rotation adjustment of the fan housing 1, a larger range of air outlet direction adjustment is obtained.

[0030] Specifically, such as Figure 13 , Figure 14 As shown, the directional adjustment structure 9 includes a lead screw 901, which is rotatably connected to the side of the fan housing 1. A drive slider 902 is threadedly connected to the middle of the lead screw 901. The bottom side of the drive slider 902 is slidably connected to the top side of the synchronous slide rod 405. Sixth springs 906 are fixedly connected between the two ends of the synchronous slide rod 405 and the fan housing 1, respectively. A release block 903 is slidably connected to the middle of the drive slider 902. A fifth spring 904 is fixedly connected between the end of the release block 903 and the drive slider 902. A locking groove 905 is provided on the top side of the synchronous slide rod 405. The locking groove 905 has a "T" shaped structure. The bottom end of the release block 903 is slidably connected to the synchronous slide rod 405 through the locking groove 905. To facilitate the driving of the synchronous slide bar 405 and thus control the rotation of the air guide plate 401, a drive slider 902 driven by a lead screw 901 is provided at the end of the fan housing 1. A release block 903 is provided inside the drive slider 902. The bottom end of the release block 903 slides within a locking groove 905 on the top side of the synchronous slide bar 405. The locking groove 905 has a "T" shaped structure. When the bottom end of the release block 903 is located in the middle of the locking groove 905, the user can rotate the lead screw 901 to drive the drive slider 405. When block 902 moves, it simultaneously drives synchronous slide bar 405 to slide, adjusting the rotation of air guide plate 401. On the other hand, when the user presses release block 903, the bottom end of release block 903 slides to one side of locking groove 905. At this time, release block 903 is released from the locking groove 905. Driven by the sixth spring 906 at both ends of synchronous slide bar 405, synchronous slide bar 405 automatically returns to the middle position, thereby driving air guide plate 401 back to the correct position and initializing the air outlet direction for easy use.

[0031] In use, this invention firstly has an impeller 6 installed inside the fan housing 1. The impeller 6 is driven by a motor on the side of the support base 5. A filter box 201 is located at the air inlet of the fan housing 1. When the impeller 6 rotates, air enters the inside of the fan housing 1 through the filter box 201, achieving a wind delivery effect. Two rotatable filter plates 202 are located at the inlet of the filter box 201. The filter plates 202 are made of non-woven fabric and can effectively filter large particles of dust in factory production environments. When the two filter plates 202 are closed, the air entering the filter box 201 undergoes preliminary filtration through the filter plates 202 before entering the fan housing 1, achieving a dust filtration effect. The filter plates 202 are located on the side... A cleaning roller 206 is installed, with a soft bristle surface. The cleaning roller 206 is slidably connected to the air filter box 201 via a guide groove 205. Combined with a torsion spring 208 at the end of the air filter plate 202, the cleaning roller 206 ensures parallel alignment between the air filter plates 202, achieving a good sealing effect and filtering the incoming air. When the filtration function is not needed, sliding the cleaning roller 206 along the guide groove 205 allows the air filter plate 202 to rotate to one side. At this time, the air filter plate 202 no longer obstructs the incoming air, ensuring the centrifugal fan's air delivery effect. Simultaneously, the movement of the cleaning roller 206 cleans the air inlet side of the air filter plate 202, ensuring effective dust filtration and good airflow. The centrifugal fan achieves energy-saving performance during dust removal. A toothed plate 204 is located on the top and bottom sides of the filter box 201, with a "T"-shaped traction plate 203 slidably connected to it. When the filter plate 202 needs to be opened, the user can rotate the drive frame 301 located on the toothed plate 204. When the drive frame 301 rotates, it pulls the traction plate 203 through the limiting groove 305, thereby causing the cleaning rollers 206 on both sides to slide along the guide groove 205. During this process, the first gears 207 at both ends of the cleaning rollers 206 mesh with the toothed structures on both sides of the toothed plate 204, causing the cleaning rollers 206 to rotate during movement. To further enhance the cleaning effect of the cleaning roller 206 on the surface of the filter plate 202, when the drive frame 301 rotates to the position of the insertion hole 302 on the toothed plate 204, the insertion rod 303 at the end of the drive frame 301 can be engaged with the insertion hole 302 to keep the filter plate 202 in the open state, achieving rapid switching of filtration effect. The filter box 201 is fixedly connected to one side of the support base 5. One side of the fan housing 1 located in the middle is rotatably connected to the filter box 201, and the other side is rotatably connected to the support base 5, so that the fan housing 1 can rotate independently of the internal impeller 6. By rotating the fan housing 1, the air outlet direction of the centrifugal fan in the vertical plane can be adjusted. For easy adjustment, a gear groove 801 is provided on the side of the fan housing 1.Rotating the smaller diameter second gear 805 drives the fan housing 1 to rotate via the gear groove 801. Simultaneously, a brake block 802 is located on the bottom side of the gear groove 801 on the fan housing 1. The top of the brake block 802 has a toothed structure that meshes with the gear groove 801, used to position the fan housing 1. After adjusting the rotation of the fan housing 1, the user needs to pull the telescopic rod 806 on the bottom side and then rotate the telescopic rod 806 180°. At this time, the insertion protrusion 809 on the side of the telescopic rod 806 will engage with another positioning hole 808 and the support base 5. Simultaneously, the telescopic rod 806 will drive the cam rod 803 to rotate during this process, causing the cam structure in the middle of the cam rod 803 to... When the mechanism rotates to contact the inner side of the brake block 802, the brake block 802 can maintain the contact state with the gear groove 801, maintaining the current rotation angle of the fan housing 1. A support roller 701 is provided on the bottom side of the fan housing 1 to support the fan housing 1. Due to the structural characteristics of the fan housing 1, when the fan housing 1 rotates to different angles, the user can rotate the adjusting screw 702 located in the middle of the support base 5, which drives the two pushing rods 705 on both sides to move in opposite directions. The sides of the pushing rods 705 are connected to the support slide rods 704 through multiple second springs 706. When the support slide rods 704 move, they will drive the connecting rod 703 between the support rollers 701 to rotate, thereby adjusting the support height of the support rollers 701. The buffering effect of the second spring 706 allows the support roller 701 to provide better support for the fan housing 1 while also providing a certain buffering effect. Combined with the soft material on the outside of the support roller 701, the noise generated during the operation of the centrifugal fan can be reduced. To further facilitate the adjustment of different air outlet directions of the centrifugal fan, multiple air guide plates 401 are provided at the air outlet of the fan housing 1. The air guide plates 401 can rotate to guide the exhaust air. A synchronous slide rod 405 is provided at the end of the fan housing 1. When the synchronous slide rod 405 slides, the drive groove 403 on the bottom side of the synchronous slide rod 405 will drive the rocker arm 402 at the top of the air guide plate 401 to slide along the rocker groove 404, thereby realizing the movement of all air guide plates. The synchronous rotation of 401 controls the direction of airflow. Combined with the rotation adjustment of the fan housing 1, a wider range of airflow direction adjustment is obtained. To facilitate the driving of the synchronous slide rod 405 and thus control the rotation of the air guide plate 401, a drive slider 902 driven by a lead screw 901 is provided at the end of the fan housing 1. A release block 903 is provided on the inner side of the drive slider 902. The bottom end of the release block 903 slides in the locking groove 905 on the top side of the synchronous slide rod 405. The locking groove 905 has a "T" shape. When the bottom end of the release block 903 is in the middle position of the locking groove 905, the user can rotate the lead screw 901 to move the drive slider 902, thereby simultaneously moving the synchronous slide rod 405.The air guide plate 401 can be rotated and adjusted. On the other hand, when the user presses the release block 903, the bottom end of the release block 903 slides to one side of the locking groove 905. At this time, the release block 903 releases its engagement with the center of the locking groove 905. Driven by the sixth springs 906 at both ends of the synchronous slide rod 405, the synchronous slide rod 405 automatically returns to the center position, thereby driving the air guide plate 401 back to its original position and initializing the airflow direction for ease of use.

[0032] 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 invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An energy-saving centrifugal fan with dust removal function, characterized in that: It includes a fan housing (1), an impeller (6) is installed inside the fan housing (1), a support base (5) is rotatably connected to the side of the fan housing (1), a dust removal structure (2) is provided on the side of the fan housing (1), and a driving structure (3) is provided on the dust removal structure (2). The dust removal structure (2) includes a filter air box (201), the side of the support base (5) is fixedly connected to the filter air box (201), the end of the filter air box (201) is rotatably connected to the fan housing (1), two filter plates (202) are symmetrically provided inside the filter air box (201), the filter plates (202) are made of non-woven fabric, the filter plates (202) are rotatably connected to the filter air box (201), a torsion spring (208) is fixedly connected between the filter plates (202) and the filter air box (201), a guide groove (205) is formed on the filter air box (201), a cleaning roller (206) is slidably connected to the filter air box (201) through the guide groove (205), and the side of the cleaning roller (206) abuts against the corresponding filter plate (202).

2. The energy-saving centrifugal fan with dust removal function according to claim 1, characterized in that: A tooth groove plate (204) is fixedly connected to the top side and the bottom side of the filter air box (201) respectively, the tooth groove plate (204) is in a "U" - shaped structure, a first gear (207) is fixedly connected to the end of the cleaning roller (206), the first gear (207) meshes with the inside of the tooth groove plate (204), a traction plate (203) is slidably connected to the top side of the tooth groove plate (204), and the end of the cleaning roller (206) is rotatably connected to the adjacent end of the traction plate (203).

3. The energy-saving centrifugal fan with dust removal function according to claim 2, characterized in that: The driving structure (3) includes a driving frame (301), the driving frame (301) is rotatably connected between the two tooth groove plates (204), the middle of the driving frame (301) is rotatably connected to the filter air box (201), limiting chute (305) are respectively formed at both ends of the driving frame (301), the traction plate (203) is in a "T" - shaped structure, the bottom side of the traction plate (203) is slidably connected to the filter air box (201), the end of the traction plate (203) is slidably connected to the driving frame (301) through the limiting chute (305), a plugging rod (303) is slidably connected to the end of the driving frame (301), a first spring (304) is fixedly connected between the plugging rod (303) and the driving frame (301), and a plugging hole (302) is formed on the tooth groove plate (204).

4. An energy-saving centrifugal fan with dust removal function according to claim 1, characterized in that: The inner side of the fan housing (1) is provided with a rotating structure (8), the rotating structure (8) includes a gear groove (801), the side of the fan housing (1) is provided with a gear groove (801), the inner side of the support base (5) is rotatably connected with a second gear (805), the second gear (805) meshes with the fan housing (1) through the gear groove (801), the diameter of the second gear (805) is smaller than the diameter of the gear groove (801), the support base ( 5) is slidably connected to a brake block (802). The top side of the brake block (802) meshes with the fan housing (1) through a gear groove (801). A cam rod (803) passes through the middle of the brake block (802). The cam rod (803) is rotatably connected to the support seat (5). The middle part of the cam rod (803) has a cam structure. The middle part of the cam rod (803) abuts against the inner side of the brake block (802).

5. An energy-saving centrifugal fan with dust removal function according to claim 4, characterized in that: A third spring (804) is fixedly connected between the brake block (802) and the support base (5). A telescopic rod (806) is slidably connected to the end of the cam rotor (803). A fourth spring (807) is fixedly connected between the end of the telescopic rod (806) and the cam rotor (803). A plug-in protrusion (809) is fixedly connected to the end of the telescopic rod (806). A positioning hole (808) is provided on the side of the support base (5). The plug-in protrusion (809) engages with the support base (5) through the positioning hole (808).

6. An energy-saving centrifugal fan with dust removal function according to claim 1, characterized in that: A support structure (7) is connected between the support base (5) and the fan housing (1). The support structure (7) includes an adjusting screw (702). The adjusting screw (702) is rotatably connected to the bottom side of the support base (5). The threads at both ends of the adjusting screw (702) are arranged in opposite directions. A push rod (705) is threadedly connected to each end of the adjusting screw (702). The end of the push rod (705) is slidably connected to the support base (5). A support slide rod (704) is provided on the side of the push rod (705). A plurality of second springs (706) are fixedly connected between the support slide rod (704) and the push rod (705). A connecting rod (703) is rotatably connected to each end of the support slide rod (704). A support roller (701) is rotatably connected to the other end of the connecting rod (703). The side of the support roller (701) abuts against the bottom side of the fan housing (1).

7. An energy-saving centrifugal fan with dust removal function according to claim 1, characterized in that: The fan housing (1) has an air outlet structure (4) at its end. The air outlet structure (4) includes an air guide plate (401). Multiple air guide plates (401) are rotatably connected to the end of the fan housing (1). The multiple air guide plates (401) are arranged equidistantly in sequence. A rocker arm (402) is fixedly connected to the top side of the air guide plate (401). Multiple rocker grooves (404) are opened on the inner side of the fan housing (1) corresponding to the air guide plate (401). The rocker grooves (404) have an arc-shaped structure. The rocker arm (402) is slidably connected to the fan housing (1) through the rocker grooves (404).

8. An energy-saving centrifugal fan with dust removal function according to claim 7, characterized in that: The end of the fan housing (1) is slidably connected to a synchronous slide rod (405). The bottom side of the synchronous slide rod (405) is provided with multiple drive grooves (403). The drive grooves (403) are arranged one-to-one with the air guide plate (401). The top of the rocker arm (402) is slidably connected to the synchronous slide rod (405) through the drive grooves (403).

9. An energy-saving centrifugal fan with dust removal function according to claim 8, characterized in that: An adjusting structure (9) is connected between the air outlet structure (4) and the fan housing (1). The adjusting structure (9) includes a lead screw (901). The lead screw (901) is rotatably connected to the side of the fan housing (1). A drive slider (902) is threadedly connected to the middle of the lead screw (901). The bottom side of the drive slider (902) is slidably connected to the top side of the synchronous slide rod (405). The two ends of the synchronous slide rod (405) are respectively fixedly connected to the fan housing (1) with a sixth spring (906).

10. An energy-saving centrifugal fan with dust removal function according to claim 9, characterized in that: A release block (903) is slidably connected to the middle of the drive slider (902). A fifth spring (904) is fixedly connected between the end of the release block (903) and the drive slider (902). A locking groove (905) is provided on the top side of the synchronous slide rod (405). The locking groove (905) has a "T" shaped structure. The bottom end of the release block (903) is slidably connected to the synchronous slide rod (405) through the locking groove (905).

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