4-68 type centrifugal fan

Abstract

The utility model discloses a 4-68 type centrifugal fan, and mainly relates to a fan. Comprising a supporting frame, the upper surface of the supporting frame is fixedly connected with a machine body, the arc surface of the machine body fixedly communicates with an air outlet pipe, one side of the machine body fixedly communicates with an inlet pipe, fan blades are arranged in the machine body, the side, away from the inlet pipe, of the machine body is fixedly connected with a servo motor, and the output end of the servo motor is fixedly connected with the fan blades; an adjusting structure is arranged at the upper end of the air outlet pipe and comprises a connecting plate, the lower surface of the connecting plate is attached to the upper end of the air outlet pipe, a round hole is formed in the surface of the connecting plate, and the upper surface of the connecting plate fixedly communicates with a corrugated pipe. Compared with the prior art, the centrifugal fan has the advantages that the exhaust direction of the air outlet pipe can be adjusted by butting the connecting plate and the air outlet pipe, so that multi-angle exhaust can be performed when the fan is used, the fan can be conveniently butted with external exhaust pipelines in different directions, the practicability of the centrifugal fan is improved, and the application range of the centrifugal fan is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a 4-68 type centrifugal fan. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. Centrifugal fans are mainly used for ventilation and air induction.

[0003] The utility model with announcement number CN220101650U discloses a high-pressure centrifugal fan, and the technical solution thereof mainly includes a housing, an air inlet and an air outlet are arranged on the housing, a mounting plate is fixedly connected to the inner peripheral wall of the housing, a plurality of mounting holes are opened on the mounting plate, a lighting lamp is installed in the mounting hole, the lighting lamp is accommodated in the mounting hole, and a dustproof sheet for covering all mounting holes is slidably connected to the mounting plate. The utility model provides a lighting lamp, so that the cleaning staff can see the dust and dirt in the housing more clearly, thereby facilitating the cleaning staff to clean the dust and dirt in the fan, making the fan cleaner, and ensuring the running effect of the fan after cleaning.

[0004] With regard to the relevant contents mentioned above, the following technical defects were found: the exhaust direction of the centrifugal fan outlet duct in the prior art cannot be adjusted, which will cause the fan to be difficult to connect to external exhaust ducts in different directions after being installed at the designated position. Personnel also need to locate pipes of specified sizes from the pipe manufacturer to connect the exhaust duct and the outlet duct on the fan, which will reduce the practicality and scope of application of the centrifugal fan. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the exhaust direction of the centrifugal fan outlet duct cannot be adjusted, which will lead to the fan being difficult to connect with external exhaust ducts in different directions after being installed at a specified position, and personnel need to locate pipes of specified sizes from the pipe manufacturer to connect the exhaust duct and the outlet duct on the fan, which will reduce the practicality and scope of application of the centrifugal fan, and a 4-68 type centrifugal fan is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a 4-68 type centrifugal fan comprises a support frame, the upper surface of the support frame is fixedly connected to a body, the arc surface of the body is fixedly connected to an air outlet pipe, one side of the body is fixedly connected to an inlet pipe, a fan blade is arranged inside the body, a side of the body away from the inlet pipe is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to the fan blade, an adjustment structure is provided at the upper end of the air outlet pipe, the adjustment structure comprises a connecting plate, the lower surface of the connecting plate is fitted with the upper end of the air outlet pipe, a circular hole is opened on the surface of the connecting plate, a corrugated pipe is fixedly connected to the upper surface of the connecting plate, a hard pipe is fixedly connected to one end of the corrugated pipe away from the connecting plate, fixing plates are fixedly connected to both sides of the connecting plate, fixing holes are opened on the surface of the fixing plate, support plates are fixedly connected to both sides of the outer wall of the air outlet pipe, a screw is fixedly connected to the upper surface of the support plate, and an adjustment ring is threadedly connected to the arc surface of the screw.

[0007] The effect achieved by the above components is: by setting the adjustment structure, personnel can make the exhaust direction of the air outlet duct adjustable by connecting the connecting plate and the air outlet duct, so that the fan can exhaust at multiple angles when in use, and the fan can be easily connected to external exhaust ducts in different directions, thereby improving the practicality and applicability of the centrifugal fan.

[0008] Preferably, a plurality of guide rods are slidably penetrated through the upper end of the air outlet pipe, and the upper ends of the guide rods are fixedly connected to the lower surface of the connecting plate.

[0009] The effect achieved by the above components is that before the connecting plate and the air outlet pipe are connected, the guide rod fixed on the connecting plate can be inserted into the air outlet pipe, so that the connecting plate can be quickly installed to the specified position.

[0010] Preferably, a rubber pad is fixedly connected to one side of the adjustment ring close to the fixing plate, and the diameter of the rubber pad is larger than the diameter of the adjustment ring.

[0011] The effect achieved by the above components is that the rubber pad can increase the friction force of the adjusting ring on the side close to the fixing plate, so that the adjusting ring can be firmly abutted against the fixing plate with the help of the rubber pad.

[0012] Preferably, the outer wall of the adjusting ring is provided with a plurality of anti-slip grooves, and the anti-slip grooves are evenly distributed on the outer wall of the adjusting ring.

[0013] The effect achieved by the above components is that a person can rotate the adjustment ring with the help of the anti-slip grooves, thereby achieving the effect of facilitating the rotation of the adjustment ring.

[0014] Preferably, the outer wall of the rigid tube is provided with an auxiliary structure, and the auxiliary structure includes a partition, one side of the partition is fixedly connected to the rigid tube, a screw rod is rotatably passed through the side surface of the partition, a bidirectional thread is opened on the arc surface of the screw rod, and two ear plates are threadedly connected to the arc surface of the screw rod, and a limiting plate is fixedly connected to the upper surface of the ear plate, and the cross-section of the limiting plate is "U" shaped.

[0015] The effect achieved by the above components is: by setting up the auxiliary structure, after the hard pipe is adjusted in direction and connected with the external ventilation duct, personnel can easily adjust the limit plate to clamp and limit the ventilation duct, so that the hard pipe and the ventilation duct can be connected more firmly.

[0016] Preferably, a positioning rod is slidably penetrated through the side surface of the ear plate, a positioning plate is fixedly connected to the arc surface of the positioning rod, and the lower surface of the positioning plate is fixedly connected to the partition plate.

[0017] The effect achieved by the above components is that when the screw drives the ear plate to move, the ear plate will move along the arc surface of the positioning rod, thereby preventing rotational deviation during the movement of the ear plate.

[0018] Preferably, a pressure rod is threadedly connected to a side of the partition away from the air outlet pipe.

[0019] The effect achieved by the above components is: when the ear plate drives the limit plate to abut against the ventilation duct, the pressure rod can be rotated to abut against the screw rod, thereby limiting the screw rod, thereby preventing people from accidentally touching the screw rod and causing the limit plate to loosen.

[0020] In summary, the beneficial effects of the utility model are:

[0021] In the utility model, by setting an adjustment structure, personnel can make the exhaust direction of the air outlet duct adjustable by connecting the connecting plate and the air outlet duct, so that the fan can exhaust at multiple angles when in use, and the fan can be conveniently connected to external exhaust ducts in different directions, thereby improving the practicality and applicability of the centrifugal fan.

[0022] In the utility model, by providing an auxiliary structure, after the hard pipe is adjusted in direction and connected with the external ventilation duct, personnel can conveniently adjust the limit plate to clamp and limit the ventilation duct, thereby making the hard pipe and the ventilation duct able to connect more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Attached Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Attached Figure 2 It is a partial structural schematic diagram of the utility model;

[0025] Attached Figure 3It is a structural schematic diagram of the regulating structure of the utility model;

[0026] Attached Figure 4 It is a partial structural schematic diagram of the regulating structure of the utility model;

[0027] Attached Figure 5 It is a structural schematic diagram of the auxiliary structure of the utility model.

[0028] Numbers shown in the accompanying drawings: 1. support frame; 2. body; 3. adjustment structure; 301. connecting plate; 302. bellows; 303. hard tube; 304. fixing plate; 305. fixing hole; 306. support plate; 307. screw; 308. adjustment ring; 309. anti-slip pattern; 310. rubber pad; 311. guide rod; 4. auxiliary structure; 41. partition; 42. screw; 43. ear plate; 44. limit plate; 45. positioning plate; 46. positioning rod; 47. pressure rod; 5. servo motor; 6. fan blade; 7. air outlet pipe; 8. inlet pipe. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

[0030] Reference Figure 1 As shown, the utility model provides a technical solution: a 4-68 type centrifugal fan, including a support frame 1, the upper surface of the support frame 1 is fixedly connected to a body 2, the arc surface of the body 2 is fixedly connected to an air outlet pipe 7, one side of the body 2 is fixedly connected to an inlet pipe 8, the interior of the body 2 is provided with fan blades 6, the side of the body 2 away from the inlet pipe 8 is fixedly connected to a servo motor 5, the output end of the servo motor 5 is fixedly connected to the fan blades 6, the upper end of the air outlet pipe 7 is provided with an adjustment structure 3, and the outer wall of the hard tube 303 is provided with an auxiliary structure 4.

[0031] The specific settings and functions of the adjustment structure 3 and the auxiliary structure 4 are described in detail below.

[0032] Reference Figure 3 and Figure 4As shown, in this embodiment: the regulating structure 3 includes a connecting plate 301, the lower surface of the connecting plate 301 is in contact with the upper end of the air outlet pipe 7, a circular hole is provided on the surface of the connecting plate 301, a bellows 302 is fixedly connected to the upper surface of the connecting plate 301, and a hard pipe 303 is fixedly connected to the end of the bellows 302 away from the connecting plate 301, and both sides of the connecting plate 301 are fixedly connected to fixing plates 304, and a fixing hole 305 is provided on the surface of the fixing plate 304. The two sides of the centrifugal fan are fixedly connected with support plates 306, the upper surface of the support plates 306 is fixedly connected with screw rods 307, and the arc surface of the screw rods 307 is threadedly connected with an adjustment ring 308. By setting the adjustment structure 3, the personnel can make the exhaust direction of the air outlet pipe 7 adjustable by connecting the connecting plate 301 with the air outlet pipe 7, so that the fan can be used to exhaust air at multiple angles, and the fan can be conveniently connected to the external exhaust pipes in different directions, thereby improving the practicality and adaptability of the centrifugal fan. The scope of use, the upper end of the air outlet pipe 7 is slidably penetrated by a plurality of guide rods 311, and the upper ends of the guide rods 311 are fixedly connected to the lower surface of the connecting plate 301. Before docking the connecting plate 301 with the air outlet pipe 7, the guide rods 311 fixed on the connecting plate 301 can be inserted into the air outlet pipe 7, so that the connecting plate 301 can be quickly installed to the specified position. A rubber pad 310 is fixedly connected to the side of the adjusting ring 308 close to the fixing plate 304. The diameter of the rubber pad 310 is larger than the diameter of the adjusting ring 308. The rubber pad 310 can increase the friction force of the adjusting ring 308 close to the fixing plate 304, so that the adjusting ring 308 can be firmly abutted against the fixing plate 304 with the help of the rubber pad 310. The outer wall of the adjusting ring 308 is provided with a plurality of anti-skid patterns 309, and the anti-skid patterns 309 are evenly distributed on the outer wall of the adjusting ring 308. Personnel can rotate the adjusting ring 308 with the help of the anti-skid patterns 309, so as to facilitate the rotation of the adjusting ring 308.

[0033] Reference Figure 5As shown, in this embodiment: the auxiliary structure 4 includes a partition 41, one side of the partition 41 is fixedly connected to the hard pipe 303, a screw rod 42 is rotatably penetrated by the side surface of the partition 41, and a bidirectional thread is opened on the arc surface of the screw rod 42, and two ear plates 43 are threadedly connected to the arc surface of the screw rod 42, and the upper surface of the ear plate 43 is fixedly connected with a limit plate 44, and the cross-section of the limit plate 44 is "U"-shaped. By setting the auxiliary structure 4, after the hard pipe 303 adjusts its direction and docks with the external ventilation duct, the personnel can easily adjust the limit plate 44 to clamp and limit the ventilation duct, so that the hard pipe 303 and the ventilation duct can be docked more firmly, and the ear plates 43 are connected to the hard pipe 303. A positioning rod 46 is slidably penetrated through the side of the plate 43, and the arc surface of the positioning rod 46 is fixedly connected to the positioning plate 45, and the lower surface of the positioning plate 45 is fixedly connected to the partition 41. When the screw rod 42 drives the ear plate 43 to move, the ear plate 43 will move along the arc surface of the positioning rod 46, thereby avoiding rotational deviation during the movement of the ear plate 43. A pressure rod 47 is threadedly connected to the side of the partition 41 away from the air outlet duct 7. When the ear plate 43 drives the limit plate 44 to abut against the ventilation duct, the pressure rod 47 can be rotated to abut against the screw rod 42, thereby limiting the position of the screw rod 42, thereby avoiding people accidentally touching the screw rod 42 and causing the limit plate 44 to loosen.

[0034] Detailed description of usage: When the fan is needed, start the servo motor 5 to drive the fan blade 6 to rotate, and then the air will enter the body 2 along the inlet pipe 8, and the air will finally be discharged along the outlet pipe 7. When the exhaust direction of the outlet pipe 7 needs to be adjustable, first turn the adjustment ring 308 to separate the screw rod 307, then move the connecting plate 301 to drive the guide rod 311 to insert into the outlet pipe 7. When the connecting plate 301 fits with the upper end of the outlet pipe 7, the screw 307 on the support plate 306 will be inserted into the fixed The fixing hole 305 on the plate 304 is then inserted into the adjusting ring 308, and then the adjusting ring 308 is put on the arc surface of the screw rod 307, and finally the adjusting ring 308 is rotated to make it move along the arc surface of the screw rod 307. When the adjusting ring 308 drives the rubber pad 310 to abut against the fixing plate 304, the fixing of the connecting plate 301 can be completed. Since a section of corrugated tube 302 is connected between the hard tube 303 and the connecting plate 301, the personnel can freely adjust the direction of the opening of the hard tube 303 to make the wind energy in the air outlet 7 The air can be discharged in multiple directions. Finally, the personnel can dock the hard tube 303 with the external ventilation duct to use the centrifugal fan normally. Before docking the connecting plate 301 with the air outlet duct 7, the guide rod 311 fixed on the connecting plate 301 can be inserted into the air outlet duct 7, so that the connecting plate 301 can be quickly installed to the specified position. In addition, the rubber pad 310 can increase the friction force of the adjusting ring 308 close to the side of the fixing plate 304, so that the adjusting ring 308 can be firmly abutted against the fixing plate 304 with the help of the rubber pad 310. Finally, the personnel can rotate the adjusting ring 308 with the help of the anti-slip pattern 309, so as to facilitate the rotation of the adjusting ring 308. By setting the adjustment structure 3, the personnel can dock the connecting plate 301 with the air outlet duct 7 to make the exhaust direction of the air outlet duct 7 adjustable, so that the fan can be exhausted at multiple angles when in use, so that the fan can be conveniently docked with external exhaust ducts in different directions, thereby improving the practicality and application range of the centrifugal fan.

[0035] When the rigid tube 303 is butted against the external ventilation duct and the limiting plate 44 needs to be adjusted to make the rigid tube 303 and the ventilation duct more stably connected, the pressure rod 47 is first rotated to separate from the screw rod 42, and then the screw rod 42 is rotated to drive the ear plate 43, and the ear plate 43 drives the limiting plate 44 to move the two limiting plates 44 toward each other until the inner wall of the limiting plate 44 abuts against the outer wall of the ventilation duct. After the ear plate 43 drives the limiting plate 44 to abut against the ventilation duct, the pressure rod 47 can be rotated to abut against the screw rod 42, and then the screw rod 42 can be adjusted. The limiting operation can be completed by preventing personnel from accidentally touching the screw rod 42 and causing the limiting plate 44 to loosen. In the process of the screw rod 42 driving the ear plate 43 to move, the ear plate 43 will move along the arc surface of the positioning rod 46, thereby preventing the ear plate 43 from rotating and deviating during its movement. By setting the auxiliary structure 4, after the hard tube 303 is adjusted in direction and docked with the external ventilation duct, personnel can easily adjust the limiting plate 44 to clamp and limit the ventilation duct, thereby making the hard tube 303 and the ventilation duct more firmly docked.

Claims

1. A 4-68 type centrifugal fan, comprising a support frame (1), characterized in that: The upper surface of the support frame (1) is fixedly connected to the body (2); the arc surface of the body (2) is fixedly connected to an air outlet pipe (7); one side of the body (2) is fixedly connected to an inlet pipe (8); a fan blade (6) is arranged inside the body (2); a servo motor (5) is fixedly connected to the side of the body (2) away from the inlet pipe (8); the output end of the servo motor (5) is fixedly connected to the fan blade (6); an adjustment structure (3) is provided at the upper end of the air outlet pipe (7); the adjustment structure (3) comprises a connecting plate (301); the lower surface of the connecting plate (301) is in contact with the upper end of the air outlet pipe (7); the connecting plate A circular hole is provided on the surface of the connecting plate (301); a bellows (302) is fixedly connected to the upper surface of the connecting plate (301); an end of the bellows (302) away from the connecting plate (301) is fixedly connected to a hard tube (303); fixing plates (304) are fixedly connected to both sides of the connecting plate (301); a fixing hole (305) is provided on the surface of the fixing plate (304); support plates (306) are fixedly connected to both sides of the outer wall of the air outlet pipe (7); a screw (307) is fixedly connected to the upper surface of the support plate (306); an adjusting ring (308) is threadedly connected to the arc surface of the screw (307).

2. A 4-68 type centrifugal fan according to claim 1, characterized in that: A plurality of guide rods (311) are slidably penetrated through the upper end of the air outlet pipe (7), and the upper ends of the guide rods (311) are fixedly connected to the lower surface of the connecting plate (301).

3. A 4-68 type centrifugal fan according to claim 1, characterized in that: A rubber pad (310) is fixedly connected to one side of the adjustment ring (308) close to the fixing plate (304), and the diameter of the rubber pad (310) is greater than the diameter of the adjustment ring (308).

4. A 4-68 type centrifugal fan according to claim 1, characterized in that: The outer wall of the adjusting ring (308) is provided with a plurality of anti-slip grooves (309), and the anti-slip grooves (309) are evenly distributed on the outer wall of the adjusting ring (308).

5. A 4-68 type centrifugal fan according to claim 1, characterized in that: The outer wall of the hard tube (303) is provided with an auxiliary structure (4), and the auxiliary structure (4) includes a partition (41), one side of the partition (41) is fixedly connected to the hard tube (303), and a screw rod (42) is rotatably penetrated through the side surface of the partition (41), and the arc surface of the screw rod (42) is provided with a bidirectional thread, and the arc surface of the screw rod (42) is threadedly connected to two ear plates (43), and the upper surface of the ear plate (43) is fixedly connected to a limit plate (44), and the cross section of the limit plate (44) is "U"-shaped.

6. A 4-68 type centrifugal fan according to claim 5, characterized in that: A positioning rod (46) is slidably penetrated through the side surface of the ear plate (43), a positioning plate (45) is fixedly connected to the arc surface of the positioning rod (46), and the lower surface of the positioning plate (45) is fixedly connected to the partition plate (41).

7. A 4-68 type centrifugal fan according to claim 5, characterized in that: A pressure rod (47) is threadedly connected to one side of the partition plate (41) away from the air outlet pipe (7).

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