CN110107519B

CN110107519B - Desktop small fan structure

Info

Publication number: CN110107519B
Application number: CN201910409080.9A
Authority: CN
Inventors: 邬宏敏
Original assignee: Changtai Xinshuntai Industrial Development Co ltd
Current assignee: Binzhou High Tech Materials Industrial Park Co ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-12-08
Anticipated expiration: 2039-05-17
Also published as: CN110107519A

Abstract

The invention discloses a small desktop fan structure, which relates to the technical field of fans and comprises a base, wherein a front cover frame and a rear cover frame are arranged above the base and are fixedly connected through bolts. This little fan structure of desktop, in the use, the degree of opening through the regulating plate is different, the effect of the air outlet amount of wind variation in size that reaches, when being in the operation of well high gear, wind-force promotes to push away the driving disk and removes to the right side, when promoting to push away the driving disk and remove to the right side, it uses the pin rod to rotate as the outside in center to drive the regulating plate through the transfer line, consequently, by the different size of wind-force, at rotatory in-process, the opening variation in size that drives the regulating plate, therefore, when well high gear, through the difference of gas opening size, the adaptation amount of wind, when high gear, can avoid the amount of wind too big to cause the impact to the user and cause uncomfortable problem, the device self-adaptation has been improved.

Description

Desktop small fan structure

Technical Field

The invention relates to the technical field of fans, in particular to a desktop small fan structure.

Background

The fan indicates the apparatus that takes a cold by wind in hot day, and the electric fan is the device that produces the air current with the electric drive, and the rotation becomes natural wind and reaches the effect of enjoying the cool, and ordinary fan is often bulky, is difficult to carry to the ancient board of outward appearance needs the power supply of specific socket, can't satisfy the user demand of people on the desktop, in some offices, generally can use some miniature desktop small fans, reaches the effect of taking a cold.

The in-process of desktop little fan using, generally all can divide into a plurality of gears and realize different amount of wind, in order to reach different nice and cool degrees, but at the in-process of using, the amount of wind is because the not concentrated reason, lead to in the time of low amount of wind, a large amount of wind is extravagant, it is not good to make to get cool effect, in some little fans that can concentrate and blow use, in the time of the high amount of wind of high-grade position, the size of the air outlet that can not self-adaptation, make the amount of wind of air outlet department too big too urgent, impact the user, cause uncomfortable problem, self-adaptation wind gap regulating effect is relatively poor.

Disclosure of Invention

The invention aims to make up for the defects of the prior art, and provides a desktop small fan structure which has the advantage of changing the size of an air port in a self-adaptive manner by adapting to the wind speed and solves the problem that the desktop small fan cannot change the size of the air port in a self-adaptive manner.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a little fan structure of desktop, includes the base, protecgulum frame and back lid frame are installed to the top of base, and protecgulum frame and back lid frame pass through bolt fixed connection.

The inside of back lid frame includes back branch pole, fan blade, fixing base, back seat and servo motor, the left side at back lid frame is placed to the back seat, the surface of back seat is through the back branch pole of whole circle and the left surface fixed connection of back lid frame, servo motor passes through the right flank at the back seat of installation shell fixed mounting, fixing base fixed mounting is at servo motor's output, the fan blade is the surface at the fixing base of installing of annular array.

The interior of the front cover frame comprises a front branch rod, a spring, a pin rod, a front seat, an adjusting plate, a pushing disc, a groove, a transmission rod, a hinge groove, a sliding rod, a resistance groove, an air guide groove and a sliding ring, the front seat is arranged at the right side of the front cover frame, the right side surface of the front cover frame is fixedly connected with the outer surface of the front seat through a whole circle of front branches, the sliding rod is fixedly arranged in the middle of the left side surface of the front seat, a sliding ring matched with the sliding rod is sleeved on the outer surface of the sliding rod, the pushing disc is fixedly arranged on the outer surface of the sliding ring, the hinge grooves are arranged on the outer surface of the pushing disc in an annular array, a transmission rod is fixedly hinged inside each hinge groove through a pin, each adjusting plate is respectively positioned between two adjacent front branches, and the adjusting plate is fixedly connected with the front branch rod through a pin rod, the groove is formed in the left side face of the adjusting plate, and the inner side face of each adjusting plate is fixedly hinged with the right end of each transmission rod.

Furthermore, the upper surface fixed mounting of base has the regulation seat, and support frame fixed mounting is in the bottom surface of back branch pole, the bottom fixedly connected with two turning blocks of support frame, the turning block passes through round pin axle fixed mounting in the inside of adjusting the seat.

Through adopting above-mentioned technical scheme, can be better support this fan and place to can adjust the blast air angle of fan.

Furthermore, the resistance groove is formed in the left side face of the pushing disc.

Through adopting above-mentioned technical scheme, better letting promote the dish and receive the influence production resistance of wind-force size to can promote to push away the dish and remove.

Furthermore, the air guide groove is formed in the inner side face of the adjusting plate.

Through adopting above-mentioned technical scheme, better conduct the drainage to the air current.

Further, the spring is annular array's the inside of placing at the recess, and the quantity of spring is four at least, the one end of spring and the right flank fixed connection of protecgulum frame, the other end of spring and the inside fixed connection of recess, and the outside at the pin pole is established to the spring housing.

Through adopting above-mentioned technical scheme, better make the regulating plate be in initial condition when the low amount of wind of low-grade position through the spring restriction to when well high gear, can make the spring shrink, thereby when stopping blowing, make the regulating plate reset.

Furthermore, a gap is reserved between the left side face of the sliding rod and the fan blade.

By adopting the technical scheme, the problem of interference and collision with the sliding rod when the fan blade rotates is prevented.

Compared with the prior art, the small desktop fan structure has the following beneficial effects:

1. the fan comprises a front cover frame, a rear cover frame, a front branch rod, a rear branch rod, a front seat and a rear seat, wherein the front cover frame, the rear cover frame, the front branch rod, the rear branch rod, the front seat and the rear seat are arranged on the front cover frame, the rear cover frame, the front branch rod, the rear branch rod, the front seat and the rear seat.

2. The invention is provided with the front cover frame, and is matched with the front branch rod, the spring, the pin rod, the front seat, the adjusting plate, the pushing disc, the groove, the transmission rod, the hinge groove, the sliding rod, the resistance groove, the air guide groove and the sliding ring, in the using process, the effect of different air outlet air quantity is achieved by different opening degrees of the adjusting plate, when the wind is in low gear and low wind quantity, the servo motor drives the fan blades to rotate to generate smaller wind power, because of the existence of the spring, when the bottom air quantity is in the covering state between the front branches, the adjusting plate is in the state of closing, therefore, by reducing the size of the air outlet, when the low-gear air blowing, the better effect of concentrating the air flow can be achieved, so that the better effect of blowing air to cool can be achieved when the low gear is used, and the effect of reducing and cooling by scattering a large amount of air flow around in use is avoided.

3. When the device is operated at a middle-high gear, the fan blades are driven to rotate through the servo motor to generate larger wind power, the wind power pushes the push disc to move towards the right side, the push spring is pushed to contract to generate potential energy, when the push disc is pushed to move towards the right side, the transmission rod drives the adjusting plate to rotate outwards with the pin rod as the center, so that the adjusting plate is driven to open differently according to different sizes of the wind power in the rotating process, therefore, the air quantity is adapted according to different sizes of air openings in the middle-high gear, the problem that the impact of the overlarge air quantity on a user causes discomfort can be avoided in the high gear, and the effect of adaptively changing the size of the air opening of the device is improved.

Drawings

FIG. 1 is a perspective view of a base of the present invention from a front perspective;

fig. 2 is a perspective view of the back view of the base of the present invention.

Fig. 3 is a perspective view of the high range opening of the present invention.

FIG. 4 is a perspective view of the pusher tray of the present invention;

FIG. 5 is a perspective view of an adjustment plate of the present invention.

In the figure: 1-base, 2-front cover frame, 201-front branch rod, 202-spring, 203-pin rod, 204-front seat, 205-adjusting plate, 206-pushing disk, 207-groove, 208-transmission rod, 209-hinge groove, 210-sliding rod, 211-resistance groove, 212-wind guide groove, 213-sliding ring, 3-rear cover frame, 301-rear branch rod, 302-fan blade, 303-fixing seat, 304-rear seat, 305-servo motor, 4-support frame, 5-pin shaft, 6-adjusting seat and 7-rotating block.

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. 1-5, the present invention provides a technical solution: the utility model provides a little fan structure of desktop, includes base 1, and front cover frame 2 and back lid frame 3 are installed to base 1's top, and front cover frame 2 and back lid frame 3 pass through bolt fixed connection.

The inside of the rear cover frame 3 comprises a rear branch rod 301, a fan blade 302, a fixed seat 303, a rear seat 304 and a servo motor 305, the rear seat 304 is arranged at the left side of the rear cover frame 3, the outer surface of the rear seat 304 is fixedly connected with the left side surface of the rear cover frame 3 through a whole circle of the rear branch rod 301, the servo motor 305 is fixedly arranged at the right side surface of the rear seat 304 through a mounting shell, the servo motor 305 is an engine which controls mechanical elements to operate in a servo system, and is a supplementary motor indirect speed change device which can make the control speed and the position precision very accurate, can convert voltage signals into torque and rotating speed to drive a control object, the rotating speed of a rotor is controlled by input signals and can react quickly, when the voltage signals are zero, the autorotation phenomenon does not occur, a motor controller is arranged at the control end of the servo motor 305, and the motor is controlled according to the set direction, speed and, The angle and response time work, the servo motor 305 is a device known in the prior art, the fixed base 303 is fixedly arranged at the output end of the servo motor 305, and the fan blades 302 are arranged on the outer surface of the fixed base 303 in an annular array.

The inner part of the front cover frame 2 comprises a front branch 201, a spring 202, a pin 203, a front seat 204, an adjusting plate 205, a pushing disc 206, a groove 207, a transmission rod 208, a hinge groove 209, a slide rod 210, a resistance groove 211, an air guide groove 212 and a sliding ring 213, the front seat 204 is placed on the right side of the front cover frame 2, the right side of the front cover frame 2 is fixedly connected with the outer surface of the front seat 204 through the whole circle of the front branch 201, the slide rod 210 is fixedly installed in the middle of the left side of the front seat 204, the outer surface of the slide rod 210 is sleeved with the sliding ring 213 matched with the slide rod 210, the pushing disc 206 is fixedly installed on the outer surface of the sliding ring 213, the hinge grooves 209 are arranged on the outer surface of the pushing disc 206 in an annular array, the inner part of each hinge groove 209 is fixedly hinged with the transmission rod 208 through a pin, each adjusting plate 205 is respectively positioned between two adjacent front branches 201, and the adjusting plates, a groove 207 is formed on the left side surface of the adjusting plate 205, and the inner side surface of each adjusting plate 205 is fixedly hinged with the right end of each driving rod 208.

Further, the upper surface fixed mounting of base 1 has regulation seat 6, and support frame 4 fixed mounting is in the bottom surface of back branch pole 301, two turning blocks 7 of the bottom fixedly connected with of support frame 4, and turning block 7 is through round pin axle 5 fixed mounting in the inside of adjusting seat 6, can be better support this fan and place to can adjust the blast air angle of fan.

Further, the resistance groove 211 is provided on the left side surface of the push plate 206, so that the push plate 206 is better affected by the wind force to generate resistance, thereby being capable of pushing the push plate 206 to move.

Furthermore, the air guiding groove 212 is formed on the inner side surface of the adjusting plate 205, so that air flow can be better guided.

Further, the springs 202 are placed in the grooves 207 in an annular array, the number of the springs 202 is at least four, one end of each spring 202 is fixedly connected with the right side face of the front cover frame 2, the other end of each spring 202 is fixedly connected with the inside of each groove 207, the springs 202 are sleeved on the outer portions of the pin rods 203, the adjusting plates 205 are better in an initial state when the springs 202 limit the low air volume at the low gear position, and in addition, the springs 202 can contract when the middle gear position and the high gear position are arranged, so that the adjusting plates 205 are reset when the air blowing is stopped.

Furthermore, a gap is left between the left side surface of the sliding rod 210 and the fan blade 302, so that the problem of interference and collision with the sliding rod 210 when the fan blade 302 rotates is solved.

The working principle is as follows: the fan blades 302 are driven to rotate by the operation of the servo motor 305, when the low air volume is at a low gear, the fan blades 302 are driven to rotate by the servo motor 305 to generate smaller wind power, because the spring 202 exists, when the bottom air volume is at a low gear, the adjusting plate 205 is in a state of covering between the front branch rods 201, therefore, by adjusting the size of the air outlet, when the low gear blows, a better effect of concentrating airflow can be achieved, therefore, a better blowing and cooling effect can be achieved at the low gear, the problem that a large amount of airflow is scattered around to reduce the cooling effect in use is avoided, when the medium-high gear runs, the fan blades 302 are driven to rotate by the servo motor 305 to generate larger wind power, the wind power pushes the push disk 206 to move towards the right side, and the spring 202 is pushed to contract to generate potential energy, when the push disk 206 is pushed to move towards the right side, drive regulating plate 205 through transfer line 208 and use pin rod 203 to rotate to the outside as the center, consequently by the different size of wind-force, at rotatory in-process, drive the opening size difference of regulating plate 205, consequently, when well high gear, through the difference of gas opening size, the adaptation amount of wind, when high gear, can avoid the amount of wind too big to cause the uncomfortable problem of impact to the user, improved the device self-adaptation and changed the effect of wind gap size.

In the description of the present invention, 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. It is noted that, herein, relational terms such as "first," "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.

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 a little fan structure of desktop, includes base (1), its characterized in that: a front cover frame (2) and a rear cover frame (3) are arranged above the base (1), and the front cover frame (2) and the rear cover frame (3) are fixedly connected through bolts;

the rear cover frame (3) comprises a rear branch rod (301), fan blades (302), a fixed seat (303), a rear seat (304) and a servo motor (305) inside, the rear seat (304) is placed on the left side of the rear cover frame (3), the outer surface of the rear seat (304) is fixedly connected with the left side face of the rear cover frame (3) through a whole circle of rear branch rod (301), the servo motor (305) is fixedly installed on the right side face of the rear seat (304) through an installation shell, the fixed seat (303) is fixedly installed at the output end of the servo motor (305), and the fan blades (302) are installed on the outer surface of the fixed seat (303) in an annular array manner;

the inner part of the front cover frame (2) comprises a front branch rod (201), a spring (202), a pin rod (203), a front seat (204), an adjusting plate (205), a pushing disc (206), a groove (207), a transmission rod (208), a hinge groove (209), a sliding rod (210), a resistance groove (211), an air guide groove (212) and a sliding ring (213), the front seat (204) is placed on the right side of the front cover frame (2), the right side surface of the front cover frame (2) is fixedly connected with the outer surface of the front seat (204) through a whole circle of front branch rod (201), the sliding rod (210) is fixedly installed in the middle of the left side surface of the front seat (204), the outer surface of the sliding rod (210) is sleeved with the sliding ring (213) matched with the sliding rod (210), the pushing disc (206) is fixedly installed on the outer surface of the sliding ring (213), and the hinge groove (209) is arranged on the outer surface of the pushing disc (206) in an annular array, every the inside in hinge groove (209) all has the transfer line (208), every through the fixed hinge joint of pin adjusting plate (205) are located between two adjacent preceding branches (201) respectively, and adjusting plate (205) pass through pin rod (203) and preceding branch (201) fixed connection, the left surface at adjusting plate (205), every are seted up in recess (207) the medial surface of adjusting plate (205) respectively with the fixed hinge joint of the right-hand member of every transfer line (208).

2. The small desktop fan structure of claim 1, wherein: the utility model discloses a supporting structure of a tree pruning machine, including base (1), support frame (4), two turning blocks (7) of bottom fixedly connected with of support frame (4), turning block (7) are through round pin axle (5) fixed mounting in the inside of adjusting seat (6), the last fixed surface of base (1) installs and adjusts seat (6), support frame (4) fixed mounting in the bottom surface of back branch pole (301).

3. The small desktop fan structure of claim 1, wherein: the resistance groove (211) is formed in the left side surface of the push disc (206).

4. The small desktop fan structure of claim 1, wherein: the air guide groove (212) is formed in the inner side surface of the adjusting plate (205).

5. The small desktop fan structure of claim 1, wherein: the spring (202) is placed in the groove (207) in an annular array mode, the number of the springs (202) is at least four, one end of each spring (202) is fixedly connected with the right side face of the front cover frame (2), the other end of each spring (202) is fixedly connected with the inside of the groove (207), and the springs (202) are sleeved on the outer portion of the pin rod (203).

6. The small desktop fan structure of claim 1, wherein: a gap is reserved between the left side face of the sliding rod (210) and the fan blade (302).