Electric fan with adjustable base

Abstract

The utility model relates to the technical field of electric fans, in particular to an electric fan with an adjustable base, which comprises the base, three supporting plates are fixedly mounted on the periphery of the base, expansion plates are movably mounted at the bottom ends of the supporting plates, self-locking universal wheels are movably mounted at the bottom ends of the expansion plates, and the self-locking universal wheels are movably mounted at the bottom ends of the expansion plates. The three connecting rods at the bottom end of the rotating disc rotate along with the rotating disc and are changed into a linear state from a contraction state, the connecting rods eject the expansion plate outwards, the expansion plate extends outwards along the supporting plate, at the moment, the sliding blocks at the bottom end of the supporting plate slide on the sliding rods in the sliding grooves formed in the expansion plate, and the expansion plate is limited; and after the expansion plate extends out, the pedal on one side of the self-locking universal wheel at the bottom end of the expansion plate is treaded down, and the electric fan is kept stable by expanding the base of the electric fan through the structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric fan technical field especially a base adjustable electric fan. BACKGROUND

[0002] ‌Electric fan is a kind of household appliance using motor to drive fan blade rotation, makes air accelerate flow, mainly for cooling and air circulation. It is widely used in family, classroom, office, shop, hospital and hotel etc. The basic structure of electric fan includes fan head, fan blade, screen cover and control device etc. parts, and its main part is ac motor, and its working principle is that electric coil is forced to rotate in magnetic field, and electric energy is converted into mechanical energy. Electric fan has multiple types, and common types include table fan, floor fan, ceiling fan, wall fan and rotary fan etc. Table fan is usually used on desktop, floor fan is used stably on ground, and ceiling fan is installed on ceiling. These different types of electric fan have respective characteristics, for example, floor fan has large air volume and low noise, and is suitable for use in warehouse, workshop, restaurant and home etc. of industrial and mining enterprises.

[0003] The existing electric fan has small base and cannot be expanded when working, so electric fan is easily tilted and damaged by external force or strong wind, causes economic loss, and universal wheel cannot be self-locked when electric fan is used, so electric fan is easily moved under uneven ground, and further causes electric fan work efficiency to drop.

[0004] Therefore, the utility model provides a base adjustable electric fan. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a base adjustable electric fan.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A base adjustable electric fan, including base, the base is fixedly installed with support plate around, the support plate is three, the support plate bottom end is movably installed with expansion plate, the expansion plate bottom end is movably installed with self-locking universal wheel.

[0008] As a further scheme of the utility model: the base top end is fixedly installed with protective shell, the protective shell is fixedly installed with motor inside, the base bottom end is movably installed with rotating disc, the rotating disc is fixedly connected with motor output end, and the rotating disc is rotated by motor.

[0009] As a further scheme of the utility model: the rotating disc bottom end is movably installed with connecting rod, the connecting rod is three, the connecting rod is arranged along rotating disc periphery, the connecting rod is movably installed with pin shaft inside, and the connecting rod is movably connected with rotating disc through pin shaft.

[0010] As a further scheme of the utility model: the connecting rod one end is connected with the expansion board, the connecting rod is connected with the expansion board through the pin shaft, the expansion board top end is equipped with the sliding slot, the sliding slot inside fixed installation has the sliding rod, the sliding rod outside movable installation has the sliding block, the sliding block is fixedly connected with the supporting plate.

[0011] As a further scheme of the utility model: the expansion board sliding slot and the sliding rod mutually cooperate and limit the sliding block, the expansion board expands outward along the supporting plate.

[0012] As a further scheme of the utility model: the protection shell top fixed installation has the support rod one, the support rod one is hollow, the support rod one inside movable installation has the support rod two, the support rod one and support rod two are inserted connection, the support rod one side movable installation has the bolt, the support rod one and support rod two are fixed by the bolt.

[0013] As a further scheme of the utility model: the support rod one top movable installation has the fan.

[0014] Compared with the prior art, the utility model provides a base adjustable electric fan, has the following beneficial effects:

[0015] The utility model discloses, through the self-locking universal wheel setting, can keep stable while blowing of electric fan, improve the mobile convenience of electric fan simultaneously.The utility model discloses, through setting three expansion boards, makes the base of electric fan when working can expand, makes electric fan base and ground contact area increase, improves the stability of electric fan, when electric fan works, is not easy to be affected by external force and dump to cause electric fan damage.The part not involved in the device is same with prior art or can adopt prior art to be realized, the utility model discloses simple structure, convenient operation. ACCURACY OF DRAWINGS

[0016] Figure 1 The utility model discloses a base adjustable electric fan's whole structure schematic diagram is provided;

[0017] Figure 2 The utility model discloses a base adjustable electric fan's side view structure schematic diagram is provided;

[0018] Figure 3 The utility model discloses a base adjustable electric fan's three-dimensional structure schematic diagram is provided;

[0019] Figure 4 The utility model discloses a base adjustable electric fan's three-dimensional structure schematic diagram is provided.

[0020] In the diagram: 1. Base; 2. Support plate; 3. Expansion plate; 4. Self-locking caster wheel; 5. Protective shell; 6. Motor; 7. Turntable; 8. Connecting rod; 9. Pin; 10. Slide groove; 11. Slide rod; 12. Slider; 13. Support rod one; 14. Support rod two; 15. Bolt; 16. Fan. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Example: An electric fan with an adjustable base, such as Figures 1-4 As shown, it includes a base 1, and support plates 2 are fixedly installed around the base 1. The support plates 2 consist of three pieces. An expansion plate 3 is movably installed at the bottom end of the support plate 2, and a self-locking universal wheel 4 is movably installed at the bottom end of the expansion plate 3.

[0024] like Figures 1-4As shown, the base 1 top fixedly installed with protective shell 5, the protective shell 5 internally fixedly installed with motor 6, the base 1 bottom movably installed with rotary disc 7, the rotary disc 7 and motor 6 output fixedly connected, the rotary disc 7 by motor 6 rotates, the rotary disc 7 bottom movably installed with connecting rod 8, the connecting rod 8 is three, the connecting rod 8 along the rotary disc 7 around arrangement, the connecting rod 8 internally movably installed with pin shaft 9, the connecting rod 8 through pin shaft 9 and rotary disc 7 movably connected, the connecting rod 8 one end is connected with the expansion plate 3, the connecting rod 8 through pin shaft 9 and expansion plate 3 movably connected, the expansion plate 3 top is provided with slide groove 10, the slide groove 10 internally fixedly installed with slide rod 11, the slide rod 11 externally movably installed with sliding block 12, the sliding block 12 and support plate 2 fixedly connected, the expansion plate 3 slide groove 10 and slide rod 11 mutually cooperate and limit the sliding block 12, the expansion plate 3 along the support plate 2 expands outward, by control switch starts to support rod two 14 bottom protective shell 5 internally motor 6 rotates, drives the rotary disc 7 of base 1 bottom rotation, the rotary disc 7 bottom three connecting rods 8 rotates along with the rotary disc 7, from the contraction state becomes linear state, connecting rod 8 outward ejects expansion plate 3, expansion plate 3 along support plate 2 extends outward, at this time, the sliding block 12 of support plate 2 bottom slides on the slide rod 11 in the slide groove 10 that expansion plate 3 sets up, gives expansion plate 3 and limits, makes expansion plate 3 always expands along the direction of support plate 2, after expansion plate 3 extends, the self-locking universal wheel 4 one side pedal of expansion plate 3 bottom is stepped down, this structure expands the base 1 of electric fan 16, makes electric fan 16 keep stable.

[0025] As Figures 1-3 shown, the protective shell 5 top fixedly installed with support rod one 13, the support rod one 13 is hollow, the support rod one 13 internally movably installed with support rod two 14, the support rod one 13 and support rod two 14 socket joint, the support rod one 13 one side movably installed with bolt 15, the support rod one 13 and support rod two 14 by bolt 15 fixed, the support rod one 13 top movably installed with fan 16, the bolt 15 of support rod one 13 one side is loosened, support rod two 14 is pulled up, support rod two 14 slides from the inside of support rod one 13, then the bolt 15 is tightened, the bolt 15 top post support rod one 13 does not move, makes fan 16 keep a certain height.

[0026] Working principle: first by universal wheel moves to the device to cool place, the electric fan 16 is connected with power, the bolt 15 of support rod one 13 one side is loosened, support rod two 14 is pulled up, support rod two 14 slides from the inside of support rod one 13, then the bolt 15 is tightened, the bolt 15 top post support rod one 13 does not move, makes fan 16 keep a certain height, by control switch starts to support rod two 14 bottom protective shell 5 internally motor 6 rotates, drives the rotary disc 7 of base 1 bottom rotation.

[0027] The three connecting rods 8 at the bottom end of the rotating disc 7 rotate with the rotating disc 7, change from the contracted state to the straight state, the connecting rods 8 push out the expansion plate 3 outward, the expansion plate 3 extends outward along the supporting plate 2, at this time the sliding block 12 at the bottom end of the supporting plate 2 slides on the sliding rod 11 in the sliding slot 10 of the expansion plate 3, limits the expansion plate 3, makes the expansion plate 3 always expand along the direction of the supporting plate 2, after the expansion plate 3 extends, the self-locking universal wheel 4 at the bottom end of the expansion plate 3 is pressed down, the structure expands the base 1 of the electric fan 16, and makes the electric fan 16 keep stable.

[0028] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, should be covered in the protection scope of the present application.

Claims

1. A base adjustable electric fan comprising a base (1), characterized in that The base (1) is fixedly installed with support plates (2) around, the support plates (2) are three, the support plates (2) are movably installed with expansion plates (3) at the bottom, the expansion plates (3) are movably installed with self-locking universal wheels (4) at the bottom.

2. A base adjustable electric fan as claimed in claim 1, wherein The base (1) is fixedly installed with protective shells (5) at the top, the protective shells (5) are fixedly installed with motors (6) inside, the base (1) is movably installed with rotating discs (7) at the bottom, the rotating discs (7) are fixedly connected with the output ends of the motors (6), and the rotating discs (7) are rotated by the motors (6).

3. A base adjustable electric fan as claimed in claim 2, wherein The rotating discs (7) are movably installed with connecting rods (8) at the bottom, the connecting rods (8) are three, the connecting rods (8) are arranged around the rotating discs (7), the connecting rods (8) are movably installed with pin shafts (9) inside, and the connecting rods (8) are movably connected with the rotating discs (7) through the pin shafts (9).

4. A base adjustable electric fan as claimed in claim 3, wherein One end of the connecting rod (8) is connected with the expansion plate (3), the connecting rod (8) is movably connected with the expansion plate (3) through the pin shaft (9), the expansion plate (3) is provided with a sliding groove (10) at the top, the sliding groove (10) is fixedly installed with a sliding rod (11) inside, the sliding rod (11) is movably installed with a sliding block (12) outside, and the sliding block (12) is fixedly connected with the support plate (2).

5. A base adjustable electric fan as claimed in claim 4, wherein The sliding groove (10) and the sliding rod (11) limit the sliding block (12) by cooperation, and the expansion plate (3) expands outward along the support plate (2).

6. A base adjustable electric fan as claimed in claim 2, wherein The protective shell (5) is fixedly installed with a support rod one (13) at the top, the support rod one (13) is hollow, the support rod one (13) is movably installed with a support rod two (14) inside, the support rod one (13) is connected with the support rod two (14) by insertion, the support rod one (13) is movably installed with a bolt (15) on one side, and the support rod one (13) and the support rod two (14) are fixed by the bolt (15).

7. A base adjustable electric fan as claimed in claim 6 wherein The support rod one (13) is movably installed with a fan (16) at the top.

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