WO2020151102A1

WO2020151102A1 - Foldable electric fan

Info

Publication number: WO2020151102A1
Application number: PCT/CN2019/083245
Authority: WO
Inventors: 陈伟豪
Original assignee: 深圳市全天拍科技有限公司
Priority date: 2019-01-25
Filing date: 2019-04-18
Publication date: 2020-07-30
Also published as: TWM582996U; KR20200001737U; CN210660666U; KR200496809Y1; CN210152944U; JP3227146U

Abstract

A foldable electric fan, comprising a fan body (1), a turnover mechanism (2), a telescopic locking mechanism (3), and a base disc (4). The upper end of the base disc (4) is open and forms an accommodating space (41), and a mounting boss (42) is provided in the accommodating space (41); one end of the telescopic locking mechanism (3) is connected to the turnover mechanism (2), and the other end thereof is rotatably connected to the mounting boss (42); the fan body (1) is connected to the turnover mechanism (2), and the fan body (1) can be turned over and folded with respect to the telescopic locking mechanism (3); when the fan body (1) is stored, the fan body (1) can be folded on the end face of the upper end of the base disc (4) by means of the turnover mechanism (2) and the telescopic locking mechanism (3) while the turnover mechanism (2) and the telescopic locking mechanism (3) can be accommodated in the accommodating space (41). The fan is simple and compact in structure, small in size after being folded, space-saving, easy to store and convenient to carry.

Description

Foldable fan

Technical field

The utility model relates to the technical field of electric fans, in particular to a foldable fan. .

Background technique

At present, there are various electric fans on the market. When a general electric fan is in use, the fan body and the fixed rod are relatively fixed, and the air blowing angle of the fan body is difficult to adjust, making the electric fan unable to blow the wind well. To the human body. In addition, the existing electric fan cannot be folded and stored when not in use, which easily occupies space and is also inconvenient to carry.

technical problem

Therefore, the existing electric fans can no longer meet the needs in actual work, and there is an urgent need for a fan that can adjust the air blowing angle, is convenient to fold and store, and is convenient to carry to solve the above-mentioned problems.

Technical solutions

The purpose of the utility model is to overcome the defects of the prior art and provide a foldable fan with compact structure space, multi-angle adjustment of the fan body, easy folding and storage, small volume after folding, and convenient carrying.

In order to achieve the above purpose, the present invention adopts the following technical solutions: a foldable fan, including a fan body, a turning mechanism, a telescopic locking mechanism, and a chassis; the upper end of the chassis is open and forms an accommodating space. There is a mounting boss in the space; one end of the telescopic locking mechanism is connected with the turning mechanism, and the other end of the telescopic locking mechanism is rotatably connected to the mounting boss; the fan body is connected with the turning mechanism and the fan body can be opposite to The telescopic locking mechanism is turned and folded; when the fan body is stored, the fan body can be folded and folded on the upper end surface of the chassis through the turning mechanism and the telescopic locking mechanism. At the same time, the turning mechanism and the telescopic locking mechanism can be stored in the accommodating space.

In the above structure, the turning mechanism includes a connecting seat, a hinge, and a pan-tilt head; the connecting seat is fixed on the back of the fan body, and is provided with a notch in a "匚"-shaped structure; the hinge is two , The two hinged parts are respectively installed on the inner wall surfaces opposite to the notches; one end of the pan/tilt head is cylindrical and hinged between the two hinged parts, and the other end of the pan/tilt head is connected to the telescopic The locking mechanism is fixedly connected; when the fan main body is stored, the fan main body can be flipped and folded relative to the telescopic locking mechanism through the pan-tilt head on the connecting seat.

In the above structure, a damping rubber ring is provided at the hinge joint between the pan/tilt head and the two hinged parts; the upper end of the pan/tilt head is provided with a circular through hole, and the two hinged parts are provided with circular convex posts on the side of the circular through hole. , The two circular convex columns correspond to the circular through holes one by one, and the damping rubber ring is clamped between the outer wall surface of the circular convex column and the inner wall surface of the circular through hole.

In the above structure, the telescopic locking mechanism includes a telescopic rod, an inner sleeve and an outer sleeve; the telescopic rod is arranged in the inner sleeve, the outer surface of the inner sleeve is provided with an outer thread, and the outer sleeve Corresponding internal threads are provided on the inner surface; the outer sleeve can be locked and fixed on the inner sleeve through a threaded structure matched with the inner sleeve.

In the above structure, the upper end of the telescopic rod is provided with a lock ring, and the lock ring is provided with a circumferentially extending lock block, and the inner sleeve is provided with a lock hole corresponding to the lock block; the lock block on the lock ring is inserted into The lock hole of the inner sleeve enables the telescopic rod to be locked and fixed in the inner sleeve.

In the above structure, the two sides of the lower end of the telescopic locking mechanism respectively extend outward to form a rotating shaft, and the two rotating shafts are arranged on the same axis; the inner wall surface on one side of the accommodating space is provided with the The mounting bosses are respectively provided with mounting shaft holes at positions corresponding to the two rotating shafts. The shape and size of the mounting shaft holes are consistent with the cross-sections of the two rotating shafts. The two rotating shafts are respectively inserted into the mounting boss In the corresponding mounting shaft hole of the platform, the telescopic locking mechanism can be rotatably connected to the mounting boss through the rotating shaft.

In the above structure, the outer circumference of the rotating shaft is also sleeved with a damping washer for increasing friction, and the damping washer is clamped between the rotating shaft and the mounting shaft hole of the mounting boss.

In the above structure, the fan main body includes a face shield, a rear cover, a motor, and fan blades; the face shield and the rear cover are combined to form an accommodating cavity for accommodating the motor and the fan blades, the motor is fixed in the rear cover, and the motor The output shaft is fixedly connected with fan blades.

In the above structure, the chassis is also provided with a main control circuit board, a rechargeable battery, a switch button, and a charging interface; the charging interface is arranged on the outer side wall of one side of the chassis, and the switch button is mounted on the mounting boss On the surface, the main control circuit board and the rechargeable battery are installed in the mounting boss, and the main control circuit board is electrically connected with the motor, the rechargeable battery, the switch button and the charging interface.

In the above structure, a counterweight iron block is provided at the bottom of the mounting boss.

Beneficial effect

The utility model is provided with a turning mechanism on the fan body, so that the fan body can realize the functions of turning and folding and multi-angle adjustment through the turning mechanism. In addition, the main body of the fan is connected with a telescopic locking mechanism, and the telescopic locking mechanism can realize the telescopic locking function. The utility model has a simple and compact structure. The main body of the fan can be folded and folded on the chassis through a turning mechanism and a telescopic locking mechanism. The folded fan body becomes smaller, which does not occupy space, is easy to store, and is convenient to carry.

Description of the drawings

Figure 1 is a schematic diagram of a structural embodiment of the utility model;

Figure 2 is a schematic diagram of an embodiment of the split structure of the utility model;

Fig. 3 is a schematic diagram of an embodiment of the fan main body of the present invention in a folded storage state.

In the picture: fan body 1, turning mechanism 2, telescopic locking mechanism 3, chassis 4, main control circuit board 5, rechargeable battery 6, switch button 7, charging port 8, counterweight iron 9, face shield 11, rear cover 12 , Motor 13, fan blade 14, connecting seat 21, notch 211, hinge 22, circular boss 221, pan/tilt head 23, circular through hole 231, damping rubber ring 24, telescopic rod 31, inner sleeve 32 , The lock hole 321, the outer sleeve 33, the lock ring 331, the rotating shaft 34, the damping washer 35, the accommodation space 41, the mounting boss 42, and the mounting shaft hole 43.

Embodiments of the invention

In order to fully understand the technical content of the present utility model, the technical scheme of the present utility model will be further introduced and explained in conjunction with specific embodiments.

1 to 3; a foldable fan, including a fan main body 1, a turning mechanism 2, a telescopic locking mechanism 3 and a chassis 4. The chassis 4 has a cylindrical shape with an open upper end and forms an accommodating space 41. A mounting boss 42 is provided on the inner wall of the accommodating space 41. One end of the telescopic locking mechanism 3 is connected with the turning mechanism 2, and the other end of the telescopic locking mechanism 3 is rotatably connected to the middle position of the mounting boss 42. That is, when the fan body 1 is stored, the fan body 1 can be folded and folded on the upper end surface of the chassis 4 through the turning mechanism 2 and the telescopic locking mechanism 3, and at the same time, the turning mechanism 2 and the telescopic locking mechanism 3 can be stored in the accommodation space 41 Inside.

Specifically, the turning mechanism 2 includes a connecting seat 21, a hinge 22, and a pan-tilt head 23; the connecting seat 21 is fixed on the back of the fan main body 1, and the connecting seat 21 is provided with a notch 211 in a "匚" structure. The number of the hinges 22 is two, and the two hinges 22 are respectively mounted on the inner wall surfaces of the slot 211 opposite to each other. An end of the pan/tilt head 23 relative to the fan body 1 is cylindrical and hinged between the two hinge members 22, and the other end of the pan/tilt head 23 is fixedly connected to the telescopic locking mechanism 3. Among them, a damping rubber ring 24 is provided at the hinge joint between the head 23 and the two hinge parts 22; the upper end of the head 23 is provided with a circular through hole, and the two hinge parts 22 are provided with a circular convex on the side of the circular through hole. The two circular convex columns correspond to the circular through holes one by one. The damping rubber ring 24 is clamped between the outer wall surface of the circular convex column and the inner wall surface of the circular through hole and is an interference fit, that is, two damping The rubber ring 24 is used to increase the radial friction when the pan/tilt head 23 rotates relative to the two hinge parts 22.

When the fan main body 1 is stored, the fan main body 1 can be horizontally flipped and folded by the flip mechanism 2, and when the fan main body 1 is unfolded for use, the fan main body 1 can be flipped on the pan/tilt head 23 through the connecting seat 21 connected to it, and The air blowing angle of the fan main body 1 is adjusted by the damping rubber ring 24 to realize the multi-angle adjustment function of the fan main body 1.

Preferably, referring to Figure 2, the telescopic locking mechanism 3 includes a telescopic rod 31, an inner sleeve 32 and an outer sleeve 33; the telescopic rod 31 is provided in the inner sleeve 32, and the outer surface of the inner sleeve 32 is provided with an outer thread , The inner surface of the outer sleeve 33 is provided with corresponding internal threads, and the outer sleeve 33 can be locked and fixed to the inner sleeve 32 through a thread structure matched with the inner sleeve 32. Wherein, the lower end of the inner sleeve 32 is rotatably connected to the mounting boss 42 through the rotating shafts 34 on both sides. When the outer sleeve 33 is locked and fixed to the inner sleeve 32, the telescopic locking mechanism 3 can pass through the inner sleeve 32 and the outer sleeve. The barrel 33 is tightly fixed to the mounting boss 42.

Further, the telescopic rod 31 is fixed in the inner sleeve 32 by a lock ring 331 and a screw; specifically, the upper end of the telescopic rod 31 is provided with a lock ring 331, and the lock ring 331 is provided with a circumferentially extending lock block; the lower end of the telescopic rod 31 passes The screw is connected with the inner sleeve, and the inner sleeve 32 has a lock hole 321 at a position corresponding to the lock block. That is, when the lock block on the lock ring 331 is inserted into the lock hole 321 of the inner sleeve 32, the telescopic rod 31 can be fixed in the inner sleeve 32.

Further, the telescopic locking mechanism 3 is located on both sides of the lower end of the inner sleeve 32 to respectively extend outward to form a rotating shaft 34, and the two rotating shafts 34 are arranged on the same axis. A mounting boss 42 is provided on the inner wall surface on one side of the accommodating space 41. The mounting boss 42 is provided with a mounting shaft hole 43 at the middle position corresponding to the two rotating shafts 34. The two mounting shaft holes 43 have the same shape and size as The cross sections of the two rotating shafts 34 have the same shape and size. The two rotating shafts 34 are respectively inserted into the mounting shaft holes 43 corresponding to the mounting boss 42 so that the telescopic locking mechanism 3 can be rotatably connected to the mounting boss 42 through the rotating shaft 34 . 3, that is to say, when the fan body 1 is not in use, the fan body 1 can be horizontally flipped and folded relative to the telescopic locking mechanism 3, and then the rotating shaft 34 at the lower end of the telescopic locking mechanism 3 faces the chassis Rotating in four directions, the fan body 1 can be folded and folded on the end surface of the upper end of the chassis 1. At the same time, the turning mechanism 3 and the telescopic locking mechanism 4 can be stored in the accommodating space 41.

Further, the outer circumference of the rotating shaft 34 is sleeved with a damping washer 35 for increasing friction, and the damping washer 35 is clamped between the rotating shaft 34 and the mounting shaft hole 43 of the mounting boss 42.

Preferably, the fan main body 1 includes a face cover 11, a rear cover 12, a motor 13, and a fan blade 14. The face cover 11 and the rear cover 12 are closed to form an accommodating cavity for accommodating the motor 13 and the fan blade 14, and the motor 13 is fixed on the rear cover 12, and the fan blade 14 is fixedly connected to the output shaft of the motor 13.

Preferably, the chassis 4 is also provided with a main control circuit board 5, a rechargeable battery 6, a switch button 7, and a charging interface 8. Wherein, the charging interface 8 is provided on the outer side wall on one side of the chassis 4, the switch button 7 is mounted on the upper surface of the mounting boss 42, the main control circuit board 5 and the rechargeable battery 6 are mounted in the mounting boss 42, and the main control circuit The board 5 is electrically connected with the motor, the rechargeable battery 6, the switch button 7, and the charging interface. Since the above-mentioned parts are prior art and are not the focus of protection of the present invention, they will not be described here.

Preferably, a counterweight iron block 9 is provided at the bottom of the mounting boss 42. The counterweight iron block 9 can keep the fan stable and prevent it from overturning.

Sequence Listing Free Content

The above statement only uses examples to further illustrate the technical content of the present utility model for easier understanding of the reader, but does not mean that the implementation of the present utility model is limited to this. Any technical extension or re-creation made according to the utility model, All are protected by the utility model.

Claims

A foldable fan, which is characterized by: comprising a fan body, a turning mechanism, a telescopic locking mechanism and a chassis; the upper end of the chassis is open and forms an accommodating space, and a mounting boss is provided in the accommodating space; One end of the telescopic locking mechanism is connected with the turning mechanism, and the other end of the telescopic locking mechanism is rotatably connected to the mounting boss; the fan body is connected with the turning mechanism and the fan body can be turned and folded relative to the telescopic locking mechanism; the fan body When storing, the fan main body can be folded and folded on the end surface of the upper end of the chassis through the turning mechanism and the telescopic locking mechanism. At the same time, the turning mechanism and the telescopic locking mechanism can be stored in the accommodating space.

2. A foldable fan according to claim 1, characterized in that: the turning mechanism includes a connecting seat, a hinge, and a pan-tilt head; the connecting seat is fixed on the back of the fan body and has a shape A notch with a ”shaped structure; the hinges are two, and the two hinges are respectively installed on the inner wall of the notch; one end of the head is cylindrical and hinged to two Between the hinges, the other end of the pan/tilt head is fixedly connected to the telescopic locking mechanism; when the fan body is stored, the fan body can be turned over and folded relative to the telescopic locking mechanism through the pan/tilt head on the connecting seat.

3. A foldable fan according to claim 2, characterized in that: a damping rubber ring is provided at the hinge joint between the head of the pan/tilt head and the two hinged parts; the upper end of the head of the pan/tilt head is provided with a circular through hole, two The hinge is provided with a circular convex column relative to the side of the circular through hole. The two circular convex columns correspond to the circular through hole one by one. The damping rubber ring is clamped on the outer wall of the circular convex column and the inside of the circular through hole. Between the walls.

4. A foldable fan according to claim 1, characterized in that: the telescopic locking mechanism comprises a telescopic rod, an inner sleeve and an outer sleeve; the telescopic rod is arranged in the inner sleeve, the The outer surface of the inner sleeve is provided with an external thread, and the inner surface of the outer sleeve is provided with a corresponding internal thread; the outer sleeve can be locked and fixed on the inner sleeve through a thread structure matched with the inner sleeve.

5. A foldable fan according to claim 3, characterized in that: the upper end of the telescopic rod is provided with a lock ring, and the lock ring is provided with a circumferentially extending lock block, and the inner sleeve is provided with Corresponding to the lock hole of the lock block; the lock block on the lock ring is inserted into the lock hole of the inner sleeve, so that the telescopic rod can be locked and fixed in the inner sleeve.

6. A foldable fan according to claim 3, wherein the two sides of the lower end of the telescopic locking mechanism respectively extend outward to form a rotating shaft, and the two rotating shafts are arranged on the same axis; The mounting boss is provided on the inner wall surface on one side of the accommodating space, and the mounting bosses are respectively provided with mounting shaft holes at positions corresponding to the two rotating shafts. The shape and size of the mounting shaft holes are related to the cross sections of the two rotating shafts. The shape and size of the two rotating shafts are the same, and the two rotating shafts are respectively inserted into the corresponding mounting shaft holes of the mounting boss, so that the telescopic locking mechanism can be rotatably connected to the mounting boss through the rotating shaft.

7. A foldable fan according to claim 4, characterized in that: the outer circumference of the rotating shaft is also sleeved with a damping washer for increasing friction, and the damping washer is clamped on the rotating shaft and Between the mounting shaft holes of the mounting boss.

The foldable fan according to claim 1, wherein the main body of the fan includes a face cover, a rear cover, a motor, and fan blades; the face cover and the rear cover are combined to form a housing for accommodating the motor and the fan blades. In the cavity, the motor is fixed in the rear cover, and the output shaft of the motor is fixedly connected with the fan blades.
The foldable fan according to claim 1, characterized in that: the chassis is further provided with a main control circuit board, a rechargeable battery, a switch button and a charging interface; the charging interface is arranged on the outer side wall of one side of the chassis The switch button is mounted on the upper surface of the mounting boss, the main control circuit board and the rechargeable battery are installed in the mounting boss, and the main control circuit board is electrically connected to the motor, rechargeable battery, switch button and charging interface. Sexual connection.

9. The foldable fan according to claim 1, wherein a counterweight iron block is provided at the bottom of the mounting boss.