Fan

Abstract

The utility model discloses a fan. The fan comprises a box body, a rotating mechanism and a fixing mechanism, the rotating mechanism comprises a fixing frame, a fixing plate is fixed to the fixing frame, a plurality of air inlets are formed in the fixing frame and the fixing plate, a motor is installed on the fixing plate, and a transmission shaft is installed on the motor; the fixing mechanism comprises a rotating plate, a plurality of fan blades are fixed to the rotating plate, a rotating sleeve is slidably connected to the transmission shaft, a connecting plate is fixed to the rotating sleeve, and a plurality of fixing bolts are installed between the connecting plate and the rotating plate. Compared with the prior art, the fan has the advantages that the motor is arranged above the fan, so that the fan can blow heat on the motor to move along with air, the heat dissipation effect of the motor is improved, the fan is flexible in arrangement mode, the small fan can be arranged in equipment to form integrated equipment, and the service life of the fan is prolonged. A large fan can be arranged at the turning of the pipeline, the number of elbows is reduced, and resistance loss is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan heat dissipation, and specifically relates to a fan. Background Art

[0002] In the prior art, centrifugal fans are generally placed outside the dust collector, and the air inlet and air outlet are generally not in the same plane. The air inlet is generally a single regular circular hole. For places with limited space, the fan installation is not flexible enough, and it is usually necessary to add inlet elbows, reducers and outlet diffusers, etc., which increase pipeline resistance. In addition, the dust collector is in a negative pressure state through the high-speed rotation of the internal fan, so that the external dust and air can be sucked into the dust collector together, so that the dust collector can process the dust. However, after a long period of operation, the motor of the external fan of the dust collector is prone to generate a large amount of heat due to surface dust accumulation and environmental ventilation changes, and the heat dissipation effect of the motor is poor, which makes it easy for the motor to be in a high temperature state for a long time. Long-term high temperature can easily reduce the mechanical strength of the motor, reduce the working efficiency of the motor, and make the motor prone to safety hazards.

[0003] Therefore, in view of the above technical problems, it is necessary to provide a fan.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a fan, which can be used to solve the problem of poor heat dissipation effect of the fan motor and reduce the resistance loss of the pipeline system.

[0006] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a fan, including: a box body, a rotating mechanism and a fixing mechanism;

[0007] The rotating mechanism is installed on the box body, and the rotating mechanism includes a fixing frame, a fixing plate is fixed on the fixing frame, a plurality of air inlets are drilled on the fixing frame and the fixing plate, a motor is installed on the fixing plate, and a transmission shaft is installed on the motor;

[0008] The fixing mechanism is installed on the transmission shaft, and the fixing mechanism includes a rotating plate, a plurality of fan blades are fixed on the rotating plate, a rotating sleeve is slidably connected to the transmission shaft, a connecting plate is fixed on the rotating sleeve, a plurality of fixing bolts are installed between the connecting plate and the rotating plate, a limiting groove is drilled on the rotating sleeve, a limiting block is slidably connected to the side wall of the limiting groove, and the limiting block is fixedly connected to the transmission shaft.

[0009] In one or more embodiments of the present invention, a plurality of supporting legs are fixed to the lower end of the box body, and the supporting legs are used to support the box body.

[0010] In one or more embodiments of the present invention, an air duct is fixed to the box body, and the air inside the box body can be discharged through the air duct.

[0011] In one or more embodiments of the present invention, a cover plate is installed on the box body, and the cover plate can block the opening on the box body, and the inside of the box body can be easily cleaned by removing the cover plate.

[0012] In one or more embodiments of the utility model, a plurality of spiral blades are fixed on the transmission shaft. The spiral blades can rotate along with the transmission shaft, and the spiral blades can drive the surrounding air to move during the rotation, thereby increasing the speed at which the surrounding air enters the interior of the intake scoop.

[0013] In one or more embodiments of the present invention, an air intake scoop is fixed to the upper end of the box body, and surrounding air can enter the interior of the box body through the air intake scoop.

[0014] In one or more embodiments of the utility model, a support plate is fixed on the multiple fan blades, and the support plate is used to support the rotating curved plate and the multiple fan blades. A rotating curved plate is fixed on the support plate, and the rotating curved plate can be supported on the side wall of the groove, thereby supporting the support plate, so that the support plate is not easily offset during rotation.

[0015] In one or more embodiments of the present invention, a fixed curved plate is also fixed on the box body, and the fixed curved plate is used to support the rotating curved plate. The fixed curved plate is provided with a groove corresponding to the rotating curved plate, and the side wall of the groove is used to support the rotating curved plate and can constrain the moving trajectory of the rotating curved plate.

[0016] In one or more embodiments of the present invention, a gasket is provided at the lower end of the rotating plate, and the gasket is used to support the fixing nut so that the fixing nut is not easy to directly squeeze the rotating sleeve.

[0017] In one or more embodiments of the present invention, a pair of fixing nuts are threadedly connected to the transmission shaft, and the fixing nuts can fix the gasket, thereby fixing the rotating sleeve.

[0018] Compared with the prior art, the fan of the utility model installs the motor on the top, so that the fan can not only blow the air to move, but also blow the heat on the motor to move with the air, so that the heat dissipation effect of the motor is improved, so that the motor is not easy to be in a high temperature state for a long time, and the working efficiency of the motor can be kept stable. In addition, the fan can be arranged flexibly. A small fan can be arranged inside the equipment to form an integrated equipment, and a large fan can be arranged at the bend of the pipeline to reduce the number of elbows and reduce resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A three-dimensional diagram of a fan in one embodiment of the utility model;

[0021] Figure 2 It is a cross-sectional view of a fan in one embodiment of the utility model;

[0022] Figure 3 for Figure 2 A schematic diagram of the structure shown in FIG.

[0023] Figure 4 for Figure 2 A schematic diagram of the structure shown at B in FIG.

[0024] Figure 5 This is a partial structural schematic diagram of a fan in one embodiment of the utility model;

[0025] Figure 6 for Figure 5 Schematic diagram of the structure shown at C in the figure.

[0026] Description of main reference numerals:

[0027] 1-box, 101-support leg, 102-air duct, 103-cover plate, 2-rotating mechanism, 201-fixed frame, 202-fixed plate, 203-air inlet, 204-motor, 205-drive shaft, 206-spiral blade, 207-air inlet bucket, 3-fixing mechanism, 301-rotating plate, 302-fan blade, 303-rotating sleeve, 304-fixing bolt, 305-limiting block, 306-support plate, 307-rotating curved plate, 308-fixing curved plate, 309-gasket, 310-fixing nut, 311-connecting plate. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] like Figures 1 to 6 As shown, a fan in an embodiment of the utility model includes: a box body 1, a rotating mechanism 2 and a fixing mechanism 3.

[0030] like Figure 1 As shown, the box 1 is used to support the fixing frame 201. A plurality of supporting legs 101 are fixed to the lower end of the box 1, and the supporting legs 101 are used to support the box 1. An air duct 102 is fixed to the box 1, and the air inside the box 1 can be discharged through the air duct 102. A cover plate 103 is installed on the box 1, and the cover plate 103 can block the opening on the box 1, and the inside of the box 1 can be easily cleaned by removing the cover plate 103.

[0031] like Figure 1 As shown, the rotating mechanism 2 is installed on the box body 1, and the rotating mechanism 2 includes a fixing frame 201, and the fixing frame 201 is used to support the fixing plate 202. The fixing frame 201 is fixed with a fixing plate 202, and the fixing plate 202 is used to support the motor 204. The fixing frame 201 and the fixing plate 202 are both opened with a plurality of air inlets 203, and the air inlets 203 can allow the surrounding air to pass through the fixing frame 201 and the fixing plate 202.

[0032] like Figure 1 to Figure 2 As shown, a motor 204 is mounted on the fixing plate 202, and the motor 204 is used to control the rotation of the transmission shaft 205. The motor 204 is mounted on the transmission shaft 205, and the transmission shaft 205 is used to support the limit block 305, a pair of fixing nuts 310 and a plurality of spiral leaves 206, and can drive the limit block 305, a pair of fixing nuts 310 and a plurality of spiral leaves 206 to rotate.

[0033] like Figure 1 to Figure 2 As shown, a plurality of spiral blades 206 are fixed on the transmission shaft 205, and the spiral blades 206 can rotate along with the transmission shaft 205, and the spiral blades 206 can drive the surrounding air to move during the rotation, thereby increasing the speed at which the surrounding air enters the air inlet scoop 207. The air inlet scoop 207 is fixed at the upper end of the housing 1, and the surrounding air can enter the housing 1 through the air inlet scoop 207.

[0034] like Figure 5 As shown, the fixing mechanism 3 is installed on the transmission shaft 205, and the fixing mechanism 3 includes a rotating plate 301, and the rotating plate 301 is used to support multiple blades 302 and can drive the multiple blades 302 to rotate. Multiple blades 302 are fixed on the rotating plate 301, and the blades 302 can push the air to move during the rotation process, so that the air inside the box 1 can be discharged through the air supply pipe 102, so that the outside air can enter the inside of the box 1 through the air intake hopper 207.

[0035] like Figures 2 to 3 As shown, a rotating sleeve 303 is slidably connected to the transmission shaft 205, and the rotating sleeve 303 is used to support the connecting plate 311 and can drive the connecting plate 311 to rotate. A connecting plate 311 is fixed to the rotating sleeve 303, and the connecting plate 311 is used to support the rotating plate 301 and multiple fixing bolts 304, and can drive the multiple fixing bolts 304 to rotate.

[0036] like Figures 2 to 3 As shown, a plurality of fixing bolts 304 are installed between the connecting plate 311 and the rotating plate 301, and the fixing bolts 304 can fix the rotating plate 301 on the connecting plate 311. A limiting groove is cut on the rotating sleeve 303, and a limiting block 305 is placed inside the limiting groove. The limiting block 305 is slidably connected to the side wall of the limiting groove, and the limiting block 305 is fixedly connected to the transmission shaft 205. The limiting block 305 can be supported on the side wall of the limiting groove, and the limiting block 305 can rotate with the transmission shaft 205, so that the limiting block 305 can push the rotating sleeve 303 to rotate.

[0037] like Figures 2 to 4 As shown, a support plate 306 is fixed on the plurality of blades 302, and the support plate 306 is used to support the rotating curved plate 307 and the plurality of blades 302. A rotating curved plate 307 is fixed on the support plate 306, and the rotating curved plate 307 can be supported on the side wall of the groove, thereby supporting the support plate 306, so that the support plate 306 is not easily offset during the rotation process.

[0038] like Figure 4 As shown, a fixed curved plate 308 is also fixed on the box body 1, and the fixed curved plate 308 is used to support the rotating curved plate 307. A groove corresponding to the rotating curved plate 307 is cut on the fixed curved plate 308, and the side wall of the groove is used to support the rotating curved plate 307 and can constrain the moving trajectory of the rotating curved plate 307.

[0039] like Figure 6As shown, a gasket 309 is provided at the lower end of the rotating plate 301, and the gasket 309 is used to support the fixing nut 310, so that the fixing nut 310 is not easy to directly squeeze the rotating sleeve 303. A pair of fixing nuts 310 are threadedly connected on the transmission shaft 205, and the fixing nuts 310 can fix the gasket 309, thereby fixing the rotating sleeve 303.

[0040] When in use, the external air can drive the heat on the motor 204 to move, so that the heat on the motor 204 is dissipated, and the external air can drive the heat to enter the box body 1 through the multiple air inlets 203 and the air inlet hopper 207, and then be discharged through the air duct 102, which can improve the heat dissipation effect of the motor 204;

[0041] The motor 204 is started, and the motor 204 can control the transmission shaft 205 to rotate. The transmission shaft 205 can drive the limit block 305 and a pair of fixing nuts 310 to rotate. The limit block 305 can be supported on the side wall of the limit groove, so that the limit block 305 can push the rotating sleeve 303 to rotate;

[0042] The rotating sleeve 303 can drive the connecting plate 311 to rotate, and the connecting plate 311 can drive the plurality of fixing bolts 304 to rotate, thereby driving the rotating plate 301 to rotate. The rotating plate 301 can drive the fan blades 302 to rotate during the rotation process, and the fan blades 302 can push the surrounding air to move during the rotation process, so that the air inside the box body 1 is discharged through the air delivery pipe 102, thereby generating negative pressure inside the box body 1, so that the external air can enter the box body 1 through the air intake hopper 207;

[0043] During the rotation, the multiple fan blades 302 can drive the support plate 306 and the rotating curved plate 307 to rotate, so that the rotating curved plate 307 can rotate on the side wall of the groove, so that the rotating curved plate 307 can support the support plate 306 and the multiple fan blades 302, so that the fan blades 302 are more stable during the rotation. The spiral blades 206 can drive the surrounding air to move during the rotation, thereby speeding up the speed at which the surrounding air enters the interior of the box 1 through the air intake scoop 207.

[0044] It is obvious 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fan, characterized in that: include: Box; A rotating mechanism is mounted on the box body, the rotating mechanism comprises a fixing frame, a fixing plate is fixed on the fixing frame, a plurality of air inlets are drilled on the fixing frame and the fixing plate, a motor is mounted on the fixing plate, and a transmission shaft is mounted on the motor; A fixing mechanism is installed on the transmission shaft, and the fixing mechanism includes a rotating plate, a plurality of fan blades are fixed on the rotating plate, a rotating sleeve is slidably connected to the transmission shaft, a connecting plate is fixed on the rotating sleeve, a plurality of fixing bolts are installed between the connecting plate and the rotating plate, a limiting groove is drilled on the rotating sleeve, a limiting block is slidably connected to the side wall of the limiting groove, and the limiting block is fixedly connected to the transmission shaft.

2. A fan according to claim 1, characterized in that: A plurality of supporting legs are fixed at the lower end of the box body.

3. A fan according to claim 1, characterized in that: An air delivery pipe is fixed on the box body.

4. A fan according to claim 1, characterized in that: A cover plate is installed on the box body.

5. A fan according to claim 1, characterized in that: A plurality of spiral blades are fixed on the transmission shaft.

6. A fan according to claim 1, characterized in that: An air intake hopper is fixed on the upper end of the box body.

7. A fan according to claim 1, characterized in that: A supporting plate is fixed on the plurality of blades, and a rotating curved plate is fixed on the supporting plate.

8. A fan according to claim 7, characterized in that: A fixed curved plate is also fixed on the box body, and a groove corresponding to the rotating curved plate is cut on the fixed curved plate.

9. A fan according to claim 1, characterized in that: A gasket is arranged at the lower end of the rotating plate.

10. The fan according to claim 1, characterized in that: A pair of fixing nuts are threadedly connected on the transmission shaft.

Images