CN112128143A

CN112128143A - Device for automatically adjusting airflow surface of fan

Info

Publication number: CN112128143A
Application number: CN202010979448.8A
Authority: CN
Inventors: 李黎莎
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2020-12-25

Abstract

The invention relates to the technical field of fan adjustment, and discloses a device for automatically adjusting the airflow surface of a fan, which comprises a circular platform support, wherein one side of the circular platform support is fixedly connected with a circular pipe column, the interior of the circular pipe column is movably connected with a movable head, the middle part of one side of the circular platform support is provided with a hole, one side of the movable head is fixedly connected with a rotary clamping shaft through the hole, and one side of the interior of the circular platform support is fixedly connected with a clamping pipe. According to the invention, the connecting bracket is fixed on the fan, the air speed on one side of the movable head is increased or reduced, the air flow rate between the movable head and the tubular column is unchanged, and the pressure intensity of a place with high speed is small according to the hydrodynamics Bernoulli principle, so that the airflow surface is enlarged or reduced, people in work and study can achieve the effect of large-area cooling through the device, the body discomfort caused by over-low local temperature is avoided, the efficiency of cooling the body surface is increased, and the comfort level of the fan during use is increased.

Description

Device for automatically adjusting airflow surface of fan

Technical Field

The invention relates to the technical field of fan adjustment, in particular to a device for automatically adjusting the airflow surface of a fan.

Background

In summer with burning sun inflammation, people usually use a fan to cool the body surface, and the fan is easy to use and low in manufacturing cost, so that the fan is commonly used in families in daily life.

When the desk is used for office work and study, the usable area of the desktop is limited, the size of the usable fan is limited, the fan is small in use, air flow is concentrated, the surface area of a body capable of effectively cooling is limited, local over-cooling is caused, and the overall cooling effect is poor; the fan is also used for cooling during sleeping at night, but during sleeping, airflow is concentrated, the wind speed is high, and the fan blows violently for a long time, so that a series of adverse physiological changes occur to a human body, the loss of human health is caused, and particularly, a latent patient suffering from cardiovascular diseases can promote the rapid formation of thrombus, myocardial infarction is caused, and the life health is influenced.

Disclosure of Invention

Aiming at the defects of the prior fan in the use process, the invention provides a device for automatically adjusting the airflow surface of the fan, which has the advantage of automatically adjusting the airflow surface and solves the technical problems in the prior art.

The invention provides the following technical scheme: a device for automatically adjusting the airflow surface of a fan comprises a circular platform support, wherein a circular pipe column is fixedly connected to one side of the circular platform support, a movable head is movably connected to the inside of the circular pipe column, a hole is formed in the middle of one side of the circular platform support, a rotary clamping shaft is fixedly connected to one side of the movable head through the hole, a clamping pipe is fixedly connected to one side of the inside of the circular platform support, a fixed clamping group is fixedly connected to the inside of the clamping pipe and comprises a clamping plate I, a clamping plate II, a clamping plate III and a clamping plate IV, a movable clamping head positioned inside the clamping pipe is fixedly connected to the top end of the rotary clamping shaft, clamping teeth positioned on one side of the movable clamping head are fixedly connected to the outside of the rotary clamping shaft, movable sleeves are meshed to the outside of the clamping teeth, blades are fixedly connected to the outside of the rotary clamping shaft, and movable grooves are fixedly connected to two ends of the inside of the circular platform support respectively, two the inside swing joint of movable groove has rotating baffle, the fixed distribution of angle such as rotating baffle's inside has a rotary rod, four the bottom and the movable sleeve's of rotary rod outside fixed connection, air vent I has been seted up at the middle part of round platform support, air vent II that is located air vent I one side is seted up at the middle part of round platform support, air vent III that is located air vent II one side is seted up at the middle part of round platform support, the top bottom difference fixedly connected with linking bridge of round platform support.

Preferably, one side of the movable head is mushroom-shaped, and the diameter of one side of the movable head is the same as the outer diameter of the tubular column.

Preferably, when fixed screens position group side is looked, screens board I is 15 with II circumference angular differences of screens board, and screens board II is 30 with III circumference angular differences of screens board, and screens board III is 15 with IV circumference angular differences of screens board, screens board I, screens board II, screens board III are all not on same vertical line with screens board IV, the quantity of fixed screens position group is four, and angular distribution such as the inside of screens pipe.

Preferably, the circumferential angle difference between the vent holes I and II is 15 degrees, the circumferential angle difference between the vent holes II and III is 15 degrees, the number of the vent holes I, the number of the vent holes II and the number of the vent holes III are four, and the vent holes I, the vent holes II and the vent holes III are distributed on the circular table support at equal angles.

The invention has the following beneficial effects:

1. the fan is fixed on the fan through the connecting support, the air speed on one side of the movable head is increased or reduced, the air flow speed between the movable head and the tubular column is unchanged, and the pressure intensity of a place with high speed is small according to the hydrodynamics Bernoulli principle, so that the airflow surface is enlarged or reduced, people in work and study can be enabled to receive a larger wind receiving area through the device to improve the cooling effect, the body discomfort caused by over-low local temperature is avoided, the body surface cooling efficiency is increased, and the comfort level of the fan during use is increased.

2. The connecting bracket is fixed on the household fan, and the airflow surface is expanded according to the wind speed to simulate the breeze in the nature, so that people can feel more comfortable in sleeping, the cooling efficiency is higher, the rapid formation of thrombus of a cardiovascular disease latent patient caused by the fact that the health of the people is injured by the long-time direct blowing of the sleeping fan is avoided, myocardial infarction is caused, and the health of people and the comfort of sleeping are protected.

Drawings

FIG. 1 is a schematic cross-sectional view of the structure of the present invention;

FIG. 2 is a schematic side view of the interior of the inventive structure;

FIG. 3 is a schematic external side view of the structure of the present invention;

FIG. 4 is a schematic view of a portion of the present invention;

FIG. 5 is a schematic cross-sectional view of a portion of the present invention;

fig. 6 is a perspective view of a part of the structure of the present invention.

In the figure: 1. a circular truncated cone support; 2. a tubular column; 3. a movable head; 4. rotating the clamping shaft; 5. a clamping pipe; 6. fixing a clamping bit group; 61. a clamping plate I; 62. a clamping plate II; 63. a clamping plate III; 64. a clamping plate IV; 7. a movable clamping head; 8. a clamping tooth; 9. an active cannula; 10. a blade; 11. a movable groove; 12. rotating the baffle; 13. rotating the rod; 14. a vent hole I; 15. a vent hole II; 16. and a vent hole III.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a device for automatically adjusting airflow surface of a fan, comprising a circular table support 1, a circular column 2 fixedly connected to one side of the circular table support 1, a movable head 3 movably connected to the inside of the circular column 2, one side of the movable head 3 being of a mushroom shape, and the diameter of one side of the movable head 3 being the same as the outer diameter of the circular column 2, so as to facilitate airflow action, a hole being formed in the middle of one side of the circular table support 1, a rotary clamping shaft 4 fixedly connected to one side of the movable head 3 through the hole, a clamping tube 5 fixedly connected to one side of the inside of the circular table support 1, a fixed clamping group 6 fixedly connected to the inside of the clamping tube 5, the fixed clamping group 6 including a clamping plate i 61, a clamping plate ii 62, a clamping plate iii 63, and a clamping plate iv 64, when the fixed clamping group 6 is viewed from the side, the circumferential angle difference between the clamping plate i 61 and the clamping plate ii 62 being 15 degrees, the circumferential angle difference between the, the circumferential angle difference between the clamping plate III 63 and the clamping plate IV 64 is 15 degrees, the clamping plate I61, the clamping plate II 62, the clamping plate III 63 and the clamping plate IV 64 are not on the same vertical line, the number of the fixed clamping groups 6 is four, the clamping plates are distributed in the clamping pipe 5 in an equal angle mode, the top end of the rotary clamping shaft 4 is fixedly connected with a movable clamping head 7 positioned in the clamping pipe 5, the outer side of the rotary clamping shaft 4 is fixedly connected with clamping teeth 8 positioned at one side of the movable clamping head 7, the outer side of each clamping tooth 8 is meshed with a movable sleeve 9, the outer part of the rotary clamping shaft 4 is fixedly connected with blades 10, the two ends in the circular table support 1 are respectively and fixedly connected with movable grooves 11, the inner parts of the two movable grooves 11 are movably connected with rotary baffles 12, four rotary rods 13 are distributed in the rotary baffles 12 in an equal angle mode, the bottom ends of the rotary rods 13 are fixedly connected with the outer sides of the, air vent I14 has been seted up at the middle part of round platform support 1, air vent II 15 that is located air vent I14 one side is seted up at the middle part of round platform support 1, air vent III 16 that is located air vent II 15 one side is seted up at the middle part of round platform support 1, air vent I14 is 15 with air vent II 15 circumference angular difference, air vent II 15 is 15 with air vent III 16 circumference angular difference, air vent I14, air vent II 15 and air vent III 16 quantity four, and the equiangular distribution on round platform support 1, the top bottom of round platform support 1 is fixedly connected with linking bridge 17 respectively.

When the low speed is adjusted to the medium speed, the wind speed on one side of the movable head 3 is increased, the air flow rate between the movable head 3 and the tubular column 2 is unchanged, the pressure intensity is small in a place with a high speed according to the hydrodynamics Bernoulli principle, the movable head 3 and the atmospheric pressure in the tubular column 2 press the movable head 3 to move towards one side, so that the movable head 3 integrally drives the rotary clamping shaft 4 to move towards one side, the movable clamping head 7 in the rotary clamping shaft 4 and the clamping plate II 62 have the same circumferential direction, meanwhile, the blades 10 drive the rotary clamping shaft 4 to rotate under the action of wind force, so that the movable clamping head 7 is abutted against the clamping plate II 62, the clamping teeth 8 drive the movable sleeve 9, the rotary baffle 12 closes the vent I14 on the circular table support 1, and the air flow surface is enlarged.

When the middle speed is adjusted to a high speed, the air speed on one side of the movable head 3 is increased, the air flow rate between the movable head 3 and the tubular column 2 is unchanged, the pressure intensity is small in a place with a high speed according to the hydrodynamics Bernoulli principle, the movable head 3 and the atmospheric pressure in the tubular column 2 press the movable head 3 to move continuously towards one side, the movable head 3 integrally drives the rotary clamping shaft 4 to move continuously towards one side, the movable clamping head 7 in the rotary clamping shaft 4 and the clamping plate III 63 have the same circumferential direction, meanwhile, the blades 10 drive the rotary clamping shaft 4 to rotate continuously under the action of the wind force, so that the movable clamping head 7 is abutted against the clamping plate III 63, the clamping teeth 8 drive the movable sleeve 9, the rotary baffle 12 closes the air vent II 15 on the circular table support 1, and the air flow surface is further expanded.

When the speed is adjusted to the middle speed, the wind speed at one side of the movable head 3 is reduced, the air flow rate between the movable head 3 and the tubular column 2 is unchanged, the pressure is small at a place with a high speed according to the hydrodynamics bernoulli principle, the movable head 3 and the atmospheric pressure in the tubular column 2 press the movable head 3 to move towards one side, meanwhile, under the action of wind, the blades 10 enable the atmospheric pressure not to resist the acting force applied to the blades 10, so that the movable head 3 integrally drives the rotary clamping shaft 4 to move towards the other side, the movable clamping head 7 in the rotary clamping shaft 4 and the clamping plate IV 64 are in the same circumferential direction, meanwhile, under the action of wind, the blades 10 drive the rotary clamping shaft 4 to continuously rotate so that the movable clamping head 7 abuts against the clamping plate IV 64, and the clamping teeth 8 drive the movable sleeve 9 so that the rotary baffle 12 opens the rotary rod 13 on the circular table support 1, and the air flow surface is reduced.

Wherein, when the middle speed is adjusted to the low speed, the wind speed at one side of the movable head 3 is reduced, the air flow speed between the movable head 3 and the tubular column 2 is unchanged, according to the principle of hydrodynamics that the pressure is small at a place with a high speed, the movable head 3 and the atmospheric pressure in the tubular column 2 press the movable head 3 to move continuously to one side, meanwhile, under the action of wind, the blades 10 are not enough to resist the action of the blades 10, so that the movable head 3 integrally drives the rotary clamping shaft 4 to move continuously towards the other side, the movable clamping head 7 in the rotary clamping shaft 4 and the next clamping plate I61 are in the same circumferential direction, meanwhile, the blades 10 drive the rotary clamping shaft 4 to continue rotating under the action of wind power, so that the movable clamping head 7 is propped against the next clamping plate I61, therefore, the clamping teeth 8 drive the movable sleeve 9 to enable the rotary baffle 12 to open the air vent I14 on the circular table bracket 1, and the air flow surface is further reduced.

The use method (working principle) of the invention is as follows:

the whole fan is arranged on a fan bracket through a connecting bracket 17, the required wind speed is adjusted, the wind speed on one side of the movable head 3 is increased or reduced, the air flow speed between the movable head 3 and the tubular column 2 is unchanged, the local pressure intensity with high speed in the fluid mechanics Bernoulli principle is small, the atmospheric pressure in the movable head 3 and the tubular column 2 and the high-speed air flow outside the movable head 3 and the tubular column 3 move left and right, the movable head 3 integrally drives the rotary clamping shaft 4 to move left and right, the movable clamping head 7 in the rotary clamping shaft 4 and the clamping plates I61, II 62, III 63 and 64 IV in the fixed clamping group 6 are respectively in the same circumferential direction in the moving process, and simultaneously the blades 10 drive the rotary clamping shaft 4 to rotate under the action of wind force so that the movable clamping head 7 respectively supports against the clamping plates I61, II 62, III and IV 64 in the fixed clamping group 6, so that the blocking tooth 8 drives the movable sleeve 9 to make the rotary baffle 12 close or open the air hole on the circular table bracket 1, and the air flow surface is enlarged or reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic adjust device of fan air current face, includes round platform support (1), its characterized in that: one side of the circular table support (1) is fixedly connected with a circular column (2), the inner part of the circular column (2) is movably connected with a movable head (3), the middle part of one side of the circular table support (1) is provided with a hole, one side of the movable head (3) is fixedly connected with a rotary clamping shaft (4) through the hole, one side of the inner part of the circular table support (1) is fixedly connected with a clamping pipe (5), the inner part of the clamping pipe (5) is fixedly connected with a fixed clamping group (6), the fixed clamping group (6) comprises a clamping plate I (61), a clamping plate II (62), a clamping plate III (63) and a clamping plate IV (64), the top end of the rotary clamping shaft (4) is fixedly connected with a movable clamping head (7) positioned inside the clamping pipe (5), and the outer side of the rotary clamping shaft (4) is fixedly connected with clamping teeth (8) positioned on one side of the movable clamping head (7), the outer side of the clamping tooth (8) is engaged with a movable sleeve (9), the outer part of the rotary clamping shaft (4) is fixedly connected with a blade (10), two ends of the inner part of the circular table bracket (1) are respectively and fixedly connected with a movable groove (11), the inner parts of the two movable grooves (11) are movably connected with a rotary baffle plate (12), rotating rods (13) are fixedly distributed in the rotating baffle (12) at equal angles, the bottom ends of the four rotating rods (13) are fixedly connected with the outer side of the movable sleeve (9), the middle part of the circular table bracket (1) is provided with a vent hole I (14), the middle part of the circular table bracket (1) is provided with a vent hole II (15) positioned at one side of the vent hole I (14), the middle part of the circular truncated cone bracket (1) is provided with a vent hole III (16) positioned at one side of the vent hole II (15), the top end and the bottom end of the circular truncated cone support (1) are respectively and fixedly connected with a connecting support (17).

2. The apparatus of claim 1, wherein the fan comprises: one side of the movable head (3) is mushroom-shaped, and the diameter of one side of the movable head (3) is the same as the outer diameter of the tubular column (2).

3. The apparatus of claim 1, wherein the fan comprises: when fixed screens group (6) side is looked, screens board I (61) and screens board II (62) circumference angular difference are 15, and screens board II (62) and screens board III (63) circumference angular difference are 30, and screens board III (63) and screens board IV (64) circumference angular difference are 15, screens board I (61), screens board II (62), screens board III (63) and screens board IV (64) are all not on same vertical line, the quantity of fixed screens group (6) is four, and angular distribution such as the inside of screens pipe (5).

4. The apparatus of claim 1, wherein the fan comprises: the air vent I (14) and the air vent II (15) are circumferentially arranged at an angle difference of 15 degrees, the air vent II (15) and the air vent III (16) are circumferentially arranged at an angle difference of 15 degrees, the air vent I (14), the air vent II (15) and the air vent III (16) are four in number, and are distributed on the circular truncated cone support (1) at equal angles.