Cooling fan

Abstract

The utility model relates to the field of fans, in particular to a cooling fan, which is characterized in that one end of a mounting box is rotatably mounted on a base, a mounting frame which is driven by a power component and slides back and forth is arranged in the mounting box, a transverse shaft is rotatably mounted on the mounting frame, a rotating wheel is fixedly mounted at the end part of the transverse shaft, and a shaft rod is fixedly mounted on the outer side of the rotating wheel; a sliding wheel is rotationally installed on the shaft rod, a sliding way matched with the sliding wheel is fixedly installed on the base, a worm is further rotationally installed on the installation frame, a worm gear is fixedly installed on the transverse shaft, a vertical shaft which is driven by a power mechanism and rotates around the axis of the vertical shaft is further arranged in the installation box, and a driving gear is fixedly installed on the vertical shaft. A driven gear located on the rear side of the driving gear is fixedly installed at one end of the worm. When the fan body swings back and forth in the horizontal direction, the driving motor drives the vertical shaft to rotate, the vertical shaft drives the driven gear and the worm to rotate through the driving gear, and then the fan body is driven to swing back and forth in the vertical direction.

Description

Technical Field

[0001] The utility model relates to the field of fans, in particular to a heat dissipation fan. Background Art

[0002] A cooling fan is a fan used to dissipate heat and cool down power supplies, communications, computers, medical equipment, industrial control equipment, household appliances and other fields, and can effectively increase the service life of objects.

[0003] The utility model with application number CN202120845980.0 discloses a new type of heat dissipation fan, including a base, the upper side wall of the base is fixedly connected with a bearing, the inner ring of the bearing is fixedly connected with a rotating shaft, the end of the rotating shaft away from the bearing is fixedly connected with a fixed plate, the upper side wall of the fixed plate is fixedly connected with a motor 2, the end of the output shaft of the motor 2 is fixedly connected with a drive shaft, the end of the drive shaft away from the motor 2 is installed with a fixed block, the outer wall of the fixed block is fixedly connected with a plurality of fan blades, and the upper side wall of the base is fixedly connected with a motor 1. The reciprocating swing of the fan blades is achieved by the cooperation of the cam and the tension spring, thereby increasing the heat dissipation range of the fan blades and improving the heat dissipation efficiency.

[0004] However, the above-mentioned heat dissipation fan can only swing back and forth in the horizontal direction, but cannot swing in the vertical direction, which has certain limitations when used and cannot meet different usage requirements. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a heat dissipation fan which can swing back and forth in the horizontal direction and in the vertical direction at the same time, so as to solve the problems in the prior art.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a heat dissipation fan comprises a base, a mounting box is arranged on the base, one end of the mounting box is rotatably mounted on the base, and the axis of rotation of the mounting box extends horizontally; a rotating shaft driven by a power mechanism and reciprocatingly rotating around its own axis is rotatably mounted on the top of the mounting box, the rotating shaft extends vertically, a mounting plate is fixedly mounted on the upper end of the rotating shaft, and a fan body is mounted on the top of the mounting plate; a mounting frame driven by a power component and sliding forward and backward is arranged in the mounting box, a horizontal axis is rotatably mounted on the mounting frame, and the end of the horizontal axis extends A rotating wheel is fixedly mounted to the outside of the mounting box, a shaft rod eccentrically arranged with the horizontal axis is fixedly mounted on the outside of the rotating wheel, a pulley is rotatably mounted on the shaft rod, a slideway matching the pulley is fixedly mounted on the base, and the slideway extends forward and backward; a vertically extending worm is also rotatably mounted on the mounting frame, a worm wheel meshing with the worm is fixedly mounted on the horizontal axis, a vertical axis driven by the power mechanism and rotating around its own axis is also provided in the mounting box, a driving gear is fixedly mounted on the vertical shaft, and a driven gear located on the rear side of the driving gear is fixedly mounted on one end of the worm.

[0007] As a preferred technical solution, the power mechanism includes a driving motor installed in the installation box, the rotating shaft of the driving motor extends vertically, a turntable is fixedly installed on the rotating shaft of the driving motor, a pin shaft eccentrically arranged with the rotating shaft of the driving motor is fixedly installed on the top of the turntable, the lower end of the rotating shaft extends into the installation box and is fixedly installed with a swing plate, and the swing plate is provided with a strip hole matching the pin shaft.

[0008] As a further improvement, a driving pulley is fixedly mounted on the rotating shaft of the driving motor, a driven pulley is fixedly mounted on the vertical shaft, and a belt is connected between the driving pulley and the driven pulley.

[0009] As a further improvement, guide rails extending forward and backward are fixedly mounted on the inner sides of the upper and lower side walls of the installation box, and a slide seat matching the guide rails is fixedly mounted on the installation frame.

[0010] As a further improvement, a movable wheel is installed at the bottom of the base, and a push-pull handle is fixedly installed on the base.

[0011] After adopting the above technical solution, the beneficial effects of the utility model are:

[0012] (1) The present application drives the rotating disk to rotate through a driving motor, and the rotating disk drives the fan body to swing back and forth in the horizontal direction through a pin shaft. At the same time, the vertical shaft can be driven to rotate through a driving motor, and the vertical shaft drives the driven gear and the worm to rotate through a driving gear, thereby driving the fan body to swing back and forth in the vertical direction. The fan body can simultaneously swing back and forth in the horizontal and vertical directions, and the fan body has a larger range of action;

[0013] (2) The present application can drive the mounting frame to slide backward along the guide rail by contracting the cylinder, so that the driven gear is separated from the driving gear, so that the driving motor will not drive the worm to rotate, and the fan body will only swing back and forth in the horizontal direction, so as to meet different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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 description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of top view;

[0017] Figure 3 yes Figure 1 Schematic diagram of an explosion view;

[0018] Figure 4 This is a schematic diagram of the structure inside the installation box of an embodiment of the utility model;

[0019] Figure 5 It is a structural schematic diagram of a mounting frame according to an embodiment of the utility model.

[0020] In the figure: 1-base; 2-bottom plate; 3-side plate; 4-moving wheel; 5-push-pull handle; 6-installation box; 7-installation shaft; 8-rotating shaft; 9-installation plate; 10-fan body; 11-driving motor; 12-turntable; 13-pin shaft; 14-swinging plate; 15-strip hole; 16-mounting frame; 17-vertical plate; 18-horizontal plate; 19-guide rail; 20-slide seat; 21-horizontal axis; 22-long strip hole; 23-rotating wheel; 24-shaft rod; 25-pulley; 26-slideway; 27-worm; 28-worm wheel; 29-driving gear; 30-driven gear; 31-driving pulley; 32-driven pulley; 33-belt; 34-cylinder; 35-vertical axis. DETAILED DESCRIPTION

[0021] like Figures 1 to 5 As shown, a heat dissipation fan comprises a base 1, the base 1 is provided with a horizontal bottom plate 2, and the left and right ends of the bottom plate 2 are respectively integrally formed with side plates 3 extending upward. In order to facilitate the movement of the heat dissipation fan, the bottom four corners of the bottom plate 2 are respectively installed with moving wheels 4 by bolts, and the moving wheels 4 are universal wheels with brakes. The rear ends of the two side plates 3 are also fixed with a push-pull handle 5 by bolts.

[0022] like Figure 2 and Figure 3 As shown, a rectangular installation box 6 is provided on the base 1. Specifically, a transversely extending installation shaft 7 is welded to the left and right sides of the front end of the installation box 6. The installation shaft 7 is rotatably mounted on the inner side of the corresponding side plate 3 through a bearing. A vertically extending rotating shaft 8 is rotatably mounted on the top wall of the installation box 6 through a bearing. A mounting plate 9 is fixedly mounted on the upper end of the rotating shaft 8 through bolts. A fan body 10 is mounted on the top of the mounting plate 9. The fan body 10 includes a cylindrical shell, the axis of which extends forward and backward. The bottom of the shell is fixedly mounted on the mounting plate 9 through a fixing frame. An impeller driven to rotate by a motor is provided in the shell; and the rotating shaft 8 is driven by a power mechanism and reciprocates around its own axis. The power mechanism includes a driving motor 11 installed in the installation box 6 through bolts. The driving motor 11 is located at the lower front side of the rotating shaft 8, and the rotating shaft of the driving motor 11 extends vertically. A turntable 12 is fixedly installed on the rotating shaft of the driving motor 11. A pin 13 eccentrically arranged with the rotating shaft of the driving motor 11 is embedded in the top of the turntable 12. The lower end of the rotating shaft 8 extends into the mounting box 6 and is fixed with a swing plate 14 by bolts. The swing plate 14 is provided with a strip hole 15 matching the pin 13. The strip hole 15 vertically penetrates the swing plate 14, and the length direction of the strip hole 15 extends by a radius of the rotating shaft 8.

[0023] When in use, the turntable 12 is driven to rotate by the driving motor 11, and the turntable 12 drives the pin shaft 13 to make a circular motion, and then the pin shaft 13 drives the swing plate 14 to swing back and forth in the horizontal direction, and the swing plate 14 drives the rotating shaft 8 to rotate back and forth around its own axis. The rotating shaft 8 drives the fan body 10 to swing back and forth in the horizontal direction through the mounting plate 9 to increase the range of action of the fan body 10.

[0024] like Figure 4 and Figure 5As shown, a mounting frame 16 driven by a power component and sliding forward and backward is provided in the mounting box 6. Specifically, the mounting frame 16 is provided with a vertical plate 17. The upper and lower ends of the vertical plate 17 are respectively integrally formed with a horizontal plate 18 extending forward. The inner sides of the upper and lower side walls of the mounting box 6 are respectively fixed with two guide rails 19 arranged in parallel on the left and right by bolts. The guide rails 19 extend forward and backward. The outer sides of the two horizontal plates 18 are respectively fixed with slide seats 20 matching the guide rails 19 by bolts, thereby improving the stability of the mounting frame 16 sliding forward and backward. The power component is specifically a cylinder 34. The cylinder body of the cylinder 34 is fixedly installed on the inner side of the rear side wall of the mounting box 6 by bolts. The piston rod of the cylinder 34 extends forward and is fixedly installed on the rear side of the vertical plate 17 by bolts.

[0025] The front side of the vertical plate 17 is rotatably mounted with a horizontal axis 21 through a bearing seat, and the left and right side walls of the mounting box 6 are respectively provided with long strip holes 22 for the horizontal axis 21 to pass through, and the mounting frame 16 can drive the horizontal axis 21 to move along the long strip hole 22 when sliding forward and backward. The two ends of the horizontal axis 21 pass through the outer side of the mounting box 6 through the corresponding long strip holes 22 and are fixedly mounted with a rotating wheel 23. The outer side of the rotating wheel 23 is welded with a shaft 24 eccentrically arranged with the horizontal axis 21, and the outer side of the shaft 24 is rotatably mounted with a pulley 25 through a bearing. The inner sides of the two side plates 3 are respectively fixed with slideways 26 matching the pulley 25 by bolts, and the slideway 26 extends forward and backward. The slideway 26 is located on the rear side of the mounting shaft 7, and the two slideways 26 are opposite to each other at the mouth. A C-shape is set; a vertically extending worm 27 is rotatably installed between the two horizontal plates 18 located on the front side of the horizontal axis 21 through a bearing, a worm wheel 28 meshing with the worm 27 is fixedly installed in the middle of the horizontal axis 21, and a vertical axis 35 is rotatably installed through a bearing in the installation box 6 located between the front side of the worm 27 and the rotating shaft 8, a driving gear 29 is fixedly installed on the vertical axis 35, and a driven gear 30 located on the rear side of the driving gear 29 is fixedly installed on the optical axis at the lower end of the worm 27; a driving pulley 31 is also fixedly installed on the rotating shaft of the drive motor 11 located below the turntable 12, a driven pulley 32 is fixedly installed on the vertical axis 35, and a belt 33 is connected between the driving pulley 31 and the driven pulley 32.

[0026] During specific use, the cylinder 34 is extended to drive the mounting frame 16 to slide forward along the guide rail 19, so that the driven gear 30 is meshed with the driving gear 29 forward; the driving motor 11 drives the fan body 10 to swing back and forth in the horizontal direction through the turntable 12, and the driving motor 11 drives the driven pulley 32 and the vertical shaft 35 to rotate through the driving pulley 31 and the belt 33, the vertical shaft 35 drives the driven gear 30 and the worm 27 to rotate through the driving gear 29, the worm 27 drives the worm wheel 28 and the horizontal shaft 21 to rotate, the horizontal shaft 21 drives the shaft rod 24 and the pulley 25 to make a circular motion through the rotating wheel 23, the pulley 25 slides back and forth along the slideway 26, and drives the mounting box 6 to swing back and forth around the axis of the mounting shaft 7, and then the mounting shaft 7 drives the fan body 10 to swing back and forth in the vertical direction, further increasing the range of action of the fan body 10.

[0027] On the contrary, the cylinder 34 contracts and drives the mounting frame 16 to slide backward along the guide rail 19, so that the driven gear 30 is separated from the driving gear 29, so that the driving motor 11 drives the fan body 10 to swing back and forth in the horizontal direction without driving the worm 27 to rotate. The worm 27 locks the horizontal axis 21 through the worm gear 28, so that the angle of the mounting box 6 remains fixed. At this time, the fan body 10 has no reciprocating swing in the vertical direction, so as to meet different usage requirements.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A heat dissipation fan, characterized in that: The invention comprises a base, a mounting box is arranged on the base, one end of the mounting box is rotatably mounted on the base, and the axis of rotation of the mounting box extends horizontally; a rotating shaft driven by a power mechanism and reciprocatingly rotating around its own axis is rotatably mounted on the top of the mounting box, the rotating shaft extends vertically, a mounting plate is fixedly mounted on the upper end of the rotating shaft, and a fan body is mounted on the top of the mounting plate; a mounting frame driven by a power component and sliding forward and backward is arranged in the mounting box, a horizontal axis is rotatably mounted on the mounting frame, and the end of the horizontal axis extends to the outside of the mounting box and is fixedly mounted with A rotating wheel, an axis rod eccentrically arranged with the horizontal axis is fixedly installed on the outer side of the rotating wheel, a pulley is rotatably installed on the axis rod, a slideway matching the pulley is fixedly installed on the base, and the slideway extends forward and backward; a vertically extending worm is also rotatably installed on the mounting frame, a worm wheel meshing with the worm is fixedly installed on the horizontal axis, a vertical axis driven by the power mechanism and rotating around its own axis is also provided in the mounting box, a driving gear is fixedly installed on the vertical axis, and a driven gear located on the rear side of the driving gear is fixedly installed on one end of the worm.

2. A heat dissipation fan according to claim 1, characterized in that: The power mechanism includes a driving motor installed in the installation box, the rotating shaft of the driving motor extends vertically, a turntable is fixedly installed on the rotating shaft of the driving motor, a pin shaft eccentrically arranged with the rotating shaft of the driving motor is fixedly installed on the top of the turntable, the lower end of the rotating shaft extends into the installation box and is fixedly installed with a swing plate, and the swing plate is provided with a strip hole matching the pin shaft.

3. A heat dissipation fan according to claim 2, characterized in that: A driving pulley is fixedly mounted on the rotating shaft of the driving motor, a driven pulley is fixedly mounted on the vertical shaft, and a belt is connected between the driving pulley and the driven pulley.

4. A heat dissipation fan according to claim 1, characterized in that: Guide rails extending forward and backward are fixedly mounted on the inner sides of the upper and lower side walls of the installation box respectively, and a slide seat matching the guide rails is fixedly mounted on the installation frame.

5. The heat dissipation fan according to claim 1, characterized in that: A moving wheel is installed at the bottom of the base, and a push-pull handle is fixedly installed on the base.

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