CN221074697U - Desk fan with up-down and left-right swinging functions - Google Patents

Abstract

A desk fan with up-down and left-right swinging functions comprises a desk base; the machine head assembly is connected with the desk type base; the fan head assembly is connected to the front end of the machine head assembly; the machine head assembly comprises a machine head supporting seat, a fan blade motor, a swinging motor, an electric control assembly and left and right swinging rods, wherein the fan blade motor, the swinging motor, the electric control assembly and the left and right swinging rods are fixed at the front end of the machine head supporting seat; the connecting rod assembly comprises a fixed connecting rod and a swinging connecting rod, the fixed connecting rod is fixedly connected to the table base, and the swinging connecting rod is movably connected to the fixed connecting rod; the upper end of the swing connecting rod is provided with a rotation center hole and a swing fulcrum; the fan blade assembly is downwards provided with a motor mandrel, and the motor mandrel is inserted into the rotation center hole; the output ends of the left swing rod and the right swing rod are connected to the swing pivot. The utility model realizes the multi-dimensional swinging function, and compared with a three-motor structure, the structure with double motors has fewer parts and lighter weight, so that the pressure born by the fan head assembly is relatively smaller, and the position balance is easier to maintain.

Description

Desk fan with up-down and left-right swinging functions

Technical Field

The utility model relates to the technical field of small household appliances, in particular to a desk fan with up-down and left-right swinging functions.

Background

The fan is used as a household electrical appliance which is most commonly applied in family life, has wide application range, is widely used by a plurality of groups, and has relatively stable market demand.

A desk fan is a household article. A desk fan is one of the fans, and has a small volume and can be moved at will relative to the other fans. The desk fan is convenient to operate and has a substantial price. The fan head, the fan blades and the website are the most basic components of the electric fan, the alternating current motor is the most important components of the electric fan, and the alternating current motor is an indispensable component of the electric fan. After the power is turned on, the alternating current motor starts to work, and the air in the bedroom becomes flowing air flow through the conversion of the power into mechanical energy, so that the effect of cool wind can be achieved.

In the prior art, refer to patent document CN211343505U, refer to a circulation fan, including base assembly, support and fan head assembly that can rotate left and right, the bottom fixed mounting of support is on base assembly, fan head assembly rotates with the top of support and is connected, fan head assembly includes the screen panel, the flabellum, back net lid, motor cabinet and main motor, the top of support wears to establish in the screen panel, motor cabinet rotates with the support to be connected, back net lid cover is established outside the motor cabinet and is connected with the screen panel, the motor cabinet rotates on the support, drive the net lid through back net lid and swing from top to bottom, back net lid and motor cabinet form accommodation space, main motor is established in accommodation space, its main shaft passes back net lid and flabellum to be connected, the utility model is novel in design, firstly with the inside spare part of fan head assembly installed, install the screen panel again, easy dismounting, and convenient test, can test the situation of each spare part under the circumstances of not having the screen panel, be convenient for observe. However, the above technical examples have certain drawbacks, such as: 1. the main parts are positioned on the shell (front net and rear net), once the whole is required to be removed for maintenance and repair, the whole is very troublesome, and the shell is easy to damage; 2. 3 motors, 2 of which are used for realizing multi-dimensional swinging and 1 of which are used for driving a fan, but the structure is complex, so that the failure rate is high; 3. the 3 motors are matched, and the number of parts is more, so that the machine head is heavier, and the machine head is easy to fall down.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a desk fan with up-down and left-right swinging functions.

The technical scheme for solving the technical problems is as follows: a desk fan with up-down and left-right swinging functions, comprising:

A table base;

The machine head assembly is rotatably connected to the desk type base through the connecting rod assembly;

The fan head assembly is connected to the front end of the machine head assembly, and the fan head assembly and the machine head assembly form transmission fit;

The machine head assembly comprises a machine head supporting seat, a fan blade motor fixed at the front end of the machine head supporting seat, a swing motor arranged in the machine head supporting seat, an electric control assembly arranged at the upper end of the machine head supporting seat, and left and right swing rods connected to the swing motor in a transmission manner;

The connecting rod assembly at least comprises a fixed connecting rod and a swinging connecting rod, wherein the fixed connection is arranged on the desk type base, and the swinging connecting rod is movably connected to the fixed connecting rod;

the upper end of the swing connecting rod is provided with a rotation center hole and a swing fulcrum; the fan blade assembly is downwards provided with a motor mandrel, and the motor mandrel is inserted into the rotating center hole; the output ends of the left swing rod and the right swing rod are connected to the swing pivot.

The technical scheme is that the swing connecting rod comprises a connecting rod sleeve, a fixed rod core penetrating through the connecting rod sleeve and a swing rod core;

The connecting rod sleeve is connected with the fixed connecting rod;

the swing type rod core is in rotary connection with the fixed type rod core through a rotary pin shaft, and the rotary pin shaft and the motor core shaft are mutually perpendicular;

The rotation center hole and the swing pivot are arranged on the swing type rod core.

Furthermore, the lower end of the swing type rod core is provided with a gear piece, a plurality of gear grooves are formed in the gear piece, the fixed type rod core is provided with a stop block, and the stop block can be inserted into any one of the gear grooves.

Preferably, the lower end of the swing type rod core is provided with an arc-shaped groove, and the gear piece is clamped in the arc-shaped groove.

In some preferred embodiments of the present utility model, the handpiece support base is provided with a plurality of heat dissipation grooves.

In some embodiments of the present utility model, the handpiece assembly further includes a handpiece housing, the handpiece housing is provided with a switch and a light hole, and the handpiece housing is connected with the fan head assembly and encloses the handpiece support base and the fan blade motor;

in the specific structure of the utility model, the electric control assembly comprises an electric control board and an indicator lamp group integrated on the electric control board, wherein the electric control board is arranged at the upper end of the machine head supporting seat, and the switch is positioned right above the electric control board and forms control connection;

The light hole is positioned right above the indicator lamp group.

Preferably, the fan head assembly is provided with a wireless signal receiver, and the wireless signal receiver is in communication connection with the electric control board.

In the specific structure of the utility model, the output end of the swing motor is in transmission fit with the left swing rod and the right swing rod through an eccentric shaft.

In some preferred embodiments of the present utility model, the lower end of the fixed link is screwed with the table base by a first screw portion, the lower end of the connecting rod sleeve is screwed with the upper end of the fixed link by a second screw portion, and the first screw portion and the second screw portion have the same size.

In the specific structure of the utility model, the fan head assembly comprises a fan head shell and fan blades positioned in the fan head shell, wherein the fan blades and the fan blade motor form transmission fit;

The fan blade comprises a center base, a plurality of first blades annularly arranged on the periphery of the center base, a ring seat surrounding the periphery of the first blades, and a plurality of second blades annularly arranged on the periphery of the ring seat, wherein the first blades and the second blades are arranged in a staggered mode.

The utility model has the beneficial effects that: the multi-dimensional swinging function is realized, firstly, the swinging motor provides power, and the electric swinging function of the fan head assembly in the left-right direction is realized through the left-right swinging rod; and secondly, the swinging function of the fan head assembly in the up-down direction is realized through the swinging connecting rod and the fixed connecting rod. Meanwhile, the machine head assembly is arranged outside the fan head assembly, so that once the fan head assembly fails, the machine head assembly can be directly maintained under the condition that the fan head assembly is not disassembled. In addition, compared with a three-motor structure, the structure with the double motors has fewer parts and is lighter, so that the pressure born by the fan head assembly is relatively smaller, and the position balance is easier to maintain.

Drawings

Fig. 1 is a schematic view of the structure of the front side of the present utility model.

Fig. 2 is a schematic view of the structure of the rear side of the present utility model.

Fig. 3 is an exploded view of the present utility model.

Fig. 4 is a schematic use diagram of the fifth embodiment.

Fig. 5 is a schematic structural view of a fan head assembly in a sixth embodiment.

Fig. 6 is a cross-sectional view of the present utility model.

Fig. 7 is an enlarged schematic view of the portion a in fig. 6.

Fig. 8 is a schematic structural view of a handpiece supporting seat in the present utility model.

Fig. 9 is a schematic view of the structure of the swing link in the present utility model.

Fig. 10 is an exploded view of the swing link of the present utility model.

Fig. 11 is a partial schematic structural view in the present utility model.

In the figure: 1. a table base; 2. a handpiece assembly; 201. a machine head supporting seat; 2011. a heat sink; 202. a fan blade motor; 2021. a motor mandrel; 203. a swing motor; 205. left and right swing rods; 206. a nose cover; 2061. a switch; 2062. a light hole; 3. a connecting rod assembly; 301. a fixed connecting rod; 301a, a first threaded portion; 302. swinging the connecting rod; 3021. a rotation center hole; 3022. a swing fulcrum; 3023. a connecting rod sleeve; 3023a, a second threaded portion; 3024. a fixed rod core; 3025. a swinging rod core; 3026. rotating the pin shaft; 3027. an arc-shaped groove; 303. a gear member; 3031. a gear groove; 304. a stop block; 305. an eccentric shaft; 306. a return spring; 4. a fan head assembly; 401. a fan head housing; 402. a wireless signal receiver; 403. a fan blade; 4031. a center base; 4032. a first blade; 4033. a ring seat; 4034. a second blade; 5. an electrical control assembly; 501. an electric control board; 502. an indicator light set.

Detailed Description

The utility model will be further described with reference to the drawings and specific examples. It should be noted that the examples are only specific to the present utility model and are for the purpose of better understanding of the technical solutions of the present utility model to those skilled in the art, and should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, as the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used for convenience of description and simplicity of description, only as to the orientation or positional relationship shown in the drawings, and not as an indication or suggestion that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the description of the present utility model, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 to 11, a desk fan having a function of swinging up and down and left and right, comprises: the desk type base 1 can be placed on a ground, a desktop and other supporting bodies; a head assembly 2 rotatably connected to the table base 1 through a link assembly 3; the fan head assembly 4 is connected to the front end of the machine head assembly 2, and the fan head assembly and the machine head assembly form transmission fit; the machine head assembly 2 comprises a machine head supporting seat 201, a fan blade 403 motor 202 fixed at the front end of the machine head supporting seat 201, a swinging motor 203 arranged in the machine head supporting seat 201, an electric control assembly 5 arranged at the upper end of the machine head supporting seat 201, and a left swinging rod 205 and a right swinging rod 205 which are connected with the swinging motor 203 in a transmission way; the connecting rod assembly 3 at least comprises a fixed connecting rod 301 and a swinging connecting rod 302, wherein the fixed connection is arranged on the desk type base 1, and the swinging connecting rod 302 is movably connected on the fixed connecting rod 301; the upper end of the swing link 302 is provided with a rotation center hole 3021 and a swing fulcrum 3022; the fan blade 403 assembly is provided with a motor spindle 2021 downwards, and the motor spindle 2021 is inserted into the rotation center hole 3021; the output ends of the left and right swing rods 205 are connected to the swing fulcrum 3022.

The above-mentioned content is the basic structure scheme of the utility model, which realizes the multi-dimensional swinging function, firstly, the swinging motor 203 provides power, and the electric swinging function of the fan head assembly 4 in the left-right direction is realized through the left-right swinging rod 205; and secondly, the swinging function of the fan head assembly 4 in the up-down direction is realized through the swinging connecting rod 302 and the fixed connecting rod 301. Meanwhile, the machine head assembly 2 is arranged outside the fan head assembly 4, so that once the fan head assembly 4 fails, the machine head assembly 2 can be directly maintained under the condition that the fan head assembly 4 is not disassembled. In addition, compared with the three-motor structure, the double-motor structure has fewer parts and is lighter, so that the fan head assembly 4 is relatively smaller in pressure and easier to maintain the position balance.

In order to realize the up-and-down swinging function of the fan head assembly 4, the prior art generally adopts a structure in the machine head assembly 2 or the fan head assembly 4 to realize the corresponding function, and the utility model is different from the prior art, and adopts a special structure in the connecting rod assembly 3, and the specific structure is as follows: the swing link 302 includes a connecting rod sleeve 3023, a fixed rod core 3024 penetrating the connecting rod sleeve 3023, and a swing rod core 3025; the connecting rod sleeve 3023 is connected to the fixed connecting rod 301; the swing type rod core 3025 is in rotary connection with the fixed type rod core 3024 through a rotary pin shaft 3026, and the rotary pin shaft 3026 and the motor core shaft 2021 are arranged perpendicular to each other; the rotation center hole 3021 and the swing fulcrum 3022 are provided on the swing type lever core 3025. The special swing connecting rod 302 is adopted, so that the connection and the matching with the fixed connecting rod 301 are realized, and the rotation and the matching of the swing type rod core 3025 and the fixed rod core 3024 are realized.

Furthermore, a gear member 303 is disposed at the lower end of the swing rod core 3025, a plurality of gear grooves 3031 are formed in the gear member 303, a fixed rod core 3024 is provided with a stop block 304, and the stop block 304 can be inserted into any one of the gear grooves 3031. The gear member 303 is made of a special elastic material, so that it can deform to a certain extent when being extruded, and automatically recover after unloading force. Preferably, the lower end of the swing rod core 3025 has an arc-shaped groove 3027, and the gear 303 is clamped in the arc-shaped groove 3027. The up-and-down swing adopts a manual adjustment structure scheme, namely, a user can press the desk type base 1 by one hand and operate the fan head assembly 4 by the other hand so as to drive the swing type rod core 3025 to rotate relative to the fixed type rod core 3024; after being adjusted to the target angle, the fixed stop 304 is snapped into the corresponding shift slot 3031, so that the position of the swing lever core 3025 relative to the fixed lever core 3024 is kept stable.

Preferably, the stop block 304 is also abutted against a return spring 306, so that the stop block 304 always has a movement trend of moving towards one side of the gear piece 303, thereby providing a pretightening force, so that the stop block 304 can be better clamped into the gear groove 3031.

In the specific structure of the present utility model, the output end of the swing motor 203 is in transmission fit with the left and right swing rods 205 through the eccentric shaft 305, so as to realize eccentric power output, so that the motor spindle 2021 is located at a central position, and the whole fan head assembly 4 can swing left and right with the motor spindle 2021 as a rotation center.

Example two

Referring to fig. 2 and 8, in order to increase reliability of the fan in use based on the structure of the first embodiment, the heat dissipation structure is preferably: 1. the machine head supporting seat 201 is provided with a plurality of heat dissipation grooves 2011 for rapidly discharging the heat emitted by the swing motor 203 outwards; 2. the electric control board 501 is installed at the upper end of the handpiece supporting seat 201, and is not in the same space with the swing motor 203, so that heat is prevented from being concentrated, and heat is directly conducted outwards, so that stability in use is ensured.

Example III

Referring to fig. 1 to 3, in this embodiment, the handpiece assembly 2 further includes a handpiece housing 206, a switch 2061 and a light hole 2062 are disposed on the handpiece housing 206, and the handpiece housing 206 is connected with the fan head assembly 4 and covers the handpiece supporting seat 201 and the fan blade 403 motor 202, so as to provide good protection for the components, and prevent personal injury caused by the user contacting the motor and other components.

In a more specific structure, the electric control assembly 5 includes an electric control board 501 and an indicator lamp group 502 integrated on the electric control board 501, the electric control board 501 is mounted at the upper end of the machine head supporting seat 201, the switch 2061 is located right above the electric control board 501 and forms control connection, the distance between the two is shorter, the operation is more direct, and the stability of the switch 2061 is improved; the light holes 2062 are located right above the indicator light set 502, so that the indicator light is directly conducted outwards through the light holes 2062, and the user can visually perceive the indicator light.

Example IV

In order to enrich the use functions, the operation is more convenient, and the structural scheme adopted in the embodiment is as follows: referring to fig. 3, the fan head assembly 4 is provided with a wireless signal receiver 402, and the wireless signal receiver 402 is in communication connection with the electronic control board 501. Thus, the user can communicate with the wireless signal receiver 402 through an intelligent control device such as a remote controller or a mobile phone, and realize a remote control function of the switch 2061.

Example five

In order to enrich the use functions, the use height of the desk fan can be adjusted, and the adopted structural scheme is as follows: referring to fig. 2 and 4, the lower end of the fixed link 301 is screwed to the table base 1 by a first screw portion 301a, the lower end of the connecting rod sleeve 3023 is screwed to the upper end of the fixed link 301 by a second screw portion 3023a, and the first screw portion 301a and the second screw portion 3023a have the same size. Because the same structure and connection mode are adopted, the user can selectively assemble, disassemble and use the fixed connecting rod 301 according to the own requirements. If the fixed connecting rod 301 is connected, the overall height of the fan head assembly 4 is higher; if the fixed link 301 is removed and the connecting rod sleeve 3023 is directly connected to the desk base 1, the overall height of the fan head assembly 4 is lowered.

Example six

In the specific structure of the present utility model, referring to fig. 3 and 5, the fan head assembly 4 includes a fan head housing 401, and a fan blade 403 located in the fan head housing 401, where the fan blade 403 is in transmission fit with the motor 202 of the fan blade 403; the fan blade 403 includes a central base 4031, a plurality of first blades 4032 annularly arranged on the periphery of the central base 4031, a ring seat 4033 surrounding the periphery of the first blades 4032, and a plurality of second blades 4034 annularly arranged on the periphery of the ring seat 4033, wherein the first blades 4032 and the second blades 4034 are arranged in a staggered manner, so that a better flow guiding effect can be achieved, and the wind power is stronger under the same rotation speed. The central base 4031 has a closed structure without a vent hole, and the position of the central base corresponds to that of the nose assembly 2, so that the center of gravity is more stable, the balance during use is maintained, and the influence on turbulent flow and choked flow of air can be reduced as much as possible.

It should be noted that other technical solutions of the present utility model belong to the prior art, and are not described in detail.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims (10)

1. A desk fan with up-down and left-right swinging functions, comprising:

A desk base (1);

The machine head assembly (2) is rotatably connected to the desk type base (1) through the connecting rod assembly (3);

The fan head assembly (4) is connected to the front end of the machine head assembly (2), and the fan head assembly and the machine head assembly form transmission fit;

The method is characterized in that: the machine head assembly (2) comprises a machine head supporting seat (201), a fan blade (403) motor (202) fixed at the front end of the machine head supporting seat (201), a swinging motor (203) arranged in the machine head supporting seat (201), an electric control assembly (5) arranged at the upper end of the machine head supporting seat (201), and a left swinging rod (205) and a right swinging rod (205) which are connected to the swinging motor (203) in a transmission way;

the connecting rod assembly (3) at least comprises a fixed connecting rod (301) and a swinging connecting rod (302), wherein the fixed connection is arranged on the desk type base (1), and the swinging connecting rod (302) is movably connected on the fixed connecting rod (301);

The upper end of the swing connecting rod (302) is provided with a rotation center hole (3021) and a swing fulcrum (3022); the fan blade (403) assembly is downwards provided with a motor mandrel (2021), and the motor mandrel (2021) is inserted into the rotation center hole (3021); the output ends of the left swing rod and the right swing rod (205) are connected to the swing pivot (3022).

2. The desk fan with up-down and side-to-side swing function according to claim 1, wherein: the swing connecting rod (302) comprises a connecting rod sleeve (3023), a fixed rod core (3024) penetrating through the connecting rod sleeve (3023), and a swing rod core (3025);

The connecting rod sleeve (3023) is connected with the fixed connecting rod (301);

The swing type rod core (3025) is in rotary connection with the fixed type rod core (3024) through a rotary pin shaft (3026), and the rotary pin shaft (3026) and the motor core shaft (2021) are arranged vertically;

The rotation center hole (3021) and the swing fulcrum (3022) are provided on the swing lever core (3025).

3. The desk fan with up-down and side-to-side swing function according to claim 2, wherein: the lower extreme of swing pole core (3025) is equipped with gear piece (303), gear piece (303) on seted up a plurality of gear groove (3031), fixed pole core (3024) on be equipped with fixed stop (304), fixed stop (304) can insert in arbitrary gear groove (3031).

4. A desk fan with up-down and side-to-side swinging functions as claimed in claim 3, wherein: the lower end of the swing type rod core (3025) is provided with an arc-shaped groove (3027), and the gear piece (303) is clamped in the arc-shaped groove (3027).

5. The desk fan with up-down and side-to-side swing function according to claim 1, wherein: the machine head supporting seat (201) is provided with a plurality of radiating grooves (2011).

6. The desk fan with up-down and side-to-side swing function according to claim 1, wherein: the machine head assembly (2) further comprises a machine head housing (206), a switch (2061) and a light hole (2062) are arranged on the machine head housing (206), and the machine head housing (206) is connected with the fan head assembly (4) and covers the machine head supporting seat (201) and the fan blade (403) motor (202);

The electric control assembly (5) comprises an electric control plate (501) and an indicator lamp group (502) integrated on the electric control plate (501), the electric control plate (501) is arranged at the upper end of the machine head supporting seat (201), and the switch (2061) is positioned right above the electric control plate (501) and forms control connection;

The light holes (2062) are positioned right above the indicator lamp group (502).

7. The desk fan with up-down and side-to-side swing function as claimed in claim 6, wherein: the fan head assembly (4) is provided with a wireless signal receiver (402), and the wireless signal receiver (402) and the electric control board (501) form communication connection.

8. The desk fan with up-down and side-to-side swing function according to claim 1, wherein: the output end of the swing motor (203) is in transmission fit with the left swing rod and the right swing rod (205) through an eccentric shaft (305).

9. The desk fan with up-down and side-to-side swing function according to claim 1, wherein: the lower end of the fixed connecting rod (301) is in threaded connection with the desk type base (1) through a first threaded portion (301 a), the lower end of the connecting rod sleeve (3023) is in threaded connection with the upper end of the fixed connecting rod (301) through a second threaded portion (3023 a), and the first threaded portion (301 a) and the second threaded portion (3023 a) are identical in size.

10. The desk fan with up-down and side-to-side swing function according to claim 1, wherein: the fan head assembly (4) comprises a fan head shell (401) and fan blades (403) positioned in the fan head shell (401), wherein the fan blades (403) and the fan blade (403) motor (202) form transmission fit;

The fan blade (403) comprises a center base (4031), a plurality of first blades (4032) which are annularly arranged on the periphery of the center base (4031), a ring seat (4033) which surrounds the periphery of the first blades (4032), and a plurality of second blades (4034) which are annularly arranged on the periphery of the ring seat (4033), wherein the first blades (4032) and the second blades (4034) are arranged in a staggered mode.