CN219672885U - Double-blade fan - Google Patents

Abstract

The utility model discloses a double-blade fan, which relates to the technical field of fans. The utility model includes: a bracket; a motor, the motor is installed in the bracket, and the motor includes a motor body and a motor shaft; a first fan blade, which is installed on one side of the bracket and meshes with the motor shaft; a second fan blade, The second fan blade is installed on the other side of the bracket, meshes with the motor shaft, and is symmetrical to the first fan blade based on the bracket, and the rotation direction of the second fan blade is opposite to the rotation direction of the first fan blade. The utility model can support the motor, the first fan blade and the second fan blade through the bracket provided. The first fan blade and the second fan blade can rotate under the driving of the motor, and during the rotation process Wind power is generated in the air, thereby increasing the user's demand for large-scale air supply.

Description

A double blade fan

Technical field

The utility model belongs to the field of fans, and specifically relates to a double-blade fan.

Background technique

According to different functions and forms, electric fans can be divided into ceiling fans, table fans, floor fans, wall fans, ventilation fans, air conditioning fans, etc.; according to the different ways of air inlet and outlet, they can be divided into axial fans, cross-flow fans, centrifugal fans, etc. Type fans and cross-flow fans.

Among them, most household table fans and floor fans are axial flow fans. Generally, the air volume of household table fans and floor fans is small, and the air volume is relatively larger at high-end settings. However, large air volumes at high-end settings will produce greater noise. The use environment is usually indoors, and the impact of noise will be greater. In addition, the conventional electric fan has a small air supply range. Even if the shaking head air supply is turned on, it can only achieve intermittent air supply in a fan-shaped area, which cannot meet the needs of large-scale air supply or long-distance air supply.

In view of this, the present utility model is proposed.

Utility model content

The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a double-blade fan.

In order to solve the above technical problems, the basic concept of the technical solution adopted by this utility model is:

A double-blade fan includes: a bracket;

The motor is installed in the bracket, and the motor includes the motor body and the motor shaft;

The first fan blade is installed on one side of the bracket and meshes with the motor shaft;

The second fan blade is installed on the other side of the bracket and meshes with the motor shaft, and the rotation direction of the second fan blade is opposite to the rotation direction of the first fan blade.

Optionally, the bracket includes a base, a connecting tube installed on the base, a fixed shell installed on the connecting tube, and the first fan blade and the second fan blade are rotationally matched on opposite sides of the fixed shell.

Optionally, the motor is installed in the base, the motor shaft is rotatably fitted in the connecting tube, and the fixed shell is rotatably fitted with two connecting rods respectively connected to the first fan blade and the second fan blade, and both connecting rods are connected to the first fan blade and the second fan blade. The motor shafts mesh.

Optionally, an output bevel gear is installed at the end of the motor shaft, and the first bevel gear and the second bevel gear are respectively installed at one end of the two connecting rods.

Optionally, the first bevel gear and the second bevel gear overlap and are perpendicular to the output bevel gear. The first bevel gear and the second bevel gear mesh with the output bevel gear respectively. The motor shaft and the output bevel gear overlap and are relatively fixed. One fan blade coincides with the first bevel gear and is relatively fixed. The second fan blade coincides with the second bevel gear and is relatively fixed. The first fan blade and the second fan blade are inclined in opposite directions.

After adopting the above technical solution, the present utility model has the following beneficial effects compared with the existing technology. Of course, any product implementing the present utility model does not necessarily need to achieve all the following advantages at the same time:

The motor, the first fan blade and the second fan blade can be supported by the provided bracket. The first fan blade and the second fan blade can be rotated by the motor and generate wind force during the rotation. , thereby increasing users’ demand for large-scale air supply.

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Description of drawings

The drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts. In the attached picture:

Figure 1 is a schematic structural diagram of a fan according to a second embodiment of the present invention;

Figure 2 is a schematic three-dimensional structural diagram of a fan according to the second embodiment of the present invention;

Figure 3 is a schematic cross-sectional structural diagram of a fan according to the second embodiment of the present invention;

Figure 4 is a schematic structural diagram of a fan according to the first embodiment of the present invention;

Figure 5 is a schematic cross-sectional structural diagram of the fan according to the first embodiment of the present invention;

In the drawings, the parts represented by each number are listed as follows:

Base 1, barrel 101, bottom plate 102, connecting tube 2, fixed shell 3, fan blade 4, turntable 401, fan blade 402, through hole 403, groove 404, motor 5, motor shaft 6, connecting rod 7, bevel gear 8. Bracket 9, first fan blade 10, second fan blade 11, output bevel gear 12, first bevel gear 13.

It should be noted that these drawings and text descriptions are not intended to limit the scope of the present invention in any way, but are intended to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments.

Detailed ways

The utility model will now be described in further detail with reference to the accompanying drawings.

Embodiment 1: Please refer to Figures 4-5. In this embodiment, a double-blade fan is provided, including: a bracket 9;

Motor 5 is installed in the bracket 9. The motor 5 includes a motor body and a motor shaft 6;

The first fan blade 10 is installed on one side of the bracket 9 and meshes with the motor shaft 6;

The second fan blade 11 is installed on the other side of the bracket 9 and meshes with the motor shaft. The rotation direction of the second fan blade 11 is opposite to the rotation direction of the first fan blade 10 .

The second fan blade 11 and the first fan blade 10 in this embodiment are symmetrical to each other based on the bracket 9 .

The bracket 9 of this embodiment includes a base 1, a connecting tube 2 installed on the base 1, a fixed shell 3 installed on the connecting tube 2, the first fan blade 10 and the second fan blade 11 are rotationally matched in the fixed shell 3 opposite sides of.

The motor 5 of this embodiment is installed in the base 1, the motor shaft 6 is rotatably fitted in the connecting tube 2, and the fixed shell 3 is rotatably fitted with two connecting rods connected to the first fan blade 10 and the second fan blade 11 respectively. 7. Both connecting rods 7 are meshed with the motor shaft 6.

In this embodiment, the end of the motor shaft 6 is equipped with an output bevel gear 12, and one end of the two connecting rods 7 is equipped with a first bevel gear 13 and a second bevel gear 14 respectively.

The first bevel gear 13 and the second bevel gear 14 of this embodiment overlap and are perpendicular to the output bevel gear 12. The first bevel gear 13 and the second bevel gear 14 mesh with the output bevel gear 12 respectively. The motor shaft and the output bevel gear 12 overlap and are relatively fixed, the first fan blade 10 and the first bevel gear 13 overlap and are relatively fixed, the second fan blade 11 and the second bevel gear 14 overlap and are relatively fixed, the first fan blade 10 and the second fan blade 11 are inclined In the opposite direction.

The motor, the first fan blade and the second fan blade can be supported by the provided bracket. The first fan blade and the second fan blade can be rotated by the motor and generate wind force during the rotation. , thereby increasing users’ demand for large-scale air supply.

Embodiment 2: Please refer to Figures 1-3. In this embodiment, a double-blade fan is provided, including: a base 1, a connecting tube 2 installed on the base 1, and a connecting tube 2 installed on the base 1. The fixed shell 3 is rotatably matched with the fan blades 4 on opposite sides of the fixed shell 3;

A motor 5 is installed in the base 1, a motor shaft 6 is rotated in the connecting tube 2, and a connecting rod 7 connected to the fan blade 4 is installed in the fixed shell 3. Both connecting rods 7 are meshed with the motor shaft 6. The motor shaft 6 is fixedly connected to the output end of the motor 5 .

One application of this embodiment is: when a fan needs to be used, start the motor 5, the rotation of the motor 5 drives the rotation of the motor shaft 6, the rotation of the motor shaft 6 drives the rotation of the two connecting rods 7, and the rotation of the two connecting rods 7 drives the two fans. The blade 4 rotates, and the two fan blades 4 rotate to generate wind force and send air to two opposite directions.

The base 1 of this embodiment includes a barrel 101 and a bottom plate 102. The motor 5 is installed on the bottom plate 102, and the bottom plate 102 is provided with threaded protrusions on the circumferential side. The inner wall of the barrel 101 is provided with a threaded groove, and the threaded groove and the threaded protrusion are Thread fit. Through the bottom plate 102 provided, the motor 5 can be easily replaced and repaired when the motor 5 is damaged.

In this embodiment, bevel gears 8 are installed on one end of the motor shaft 6 and the two connecting rods 7 , and the bevel gears 8 on the motor shaft 6 and the connecting rods 7 mesh with each other. Through the bevel gear 8 provided, when the motor shaft 6 rotates, the bevel gear 8 can be driven to rotate, and the connecting rod 7 can be driven to rotate through the bevel gear 8, thereby driving the fan blade 4 to rotate.

The fan blade 4 of this embodiment includes a turntable 401 and fan blades 402 evenly distributed around the outer wall of the turntable 401. The turntable 401 cooperates with the connecting rod 7; a through hole 403 is provided in the middle of the turntable 401, and the inner walls of the through hole 403 face two opposite sides. A groove 404 is formed on the side, and a slot is formed at one end of the connecting rod 7 located in the through hole 403. A latch matching the groove 404 is provided in the groove. Through the provided through hole 403, it can be connected to the connecting rod 7, and through the provided latch, it can be inserted into the slot on the one hand, and can drive the turntable 401 to rotate on the other hand, thereby driving the maple leaf 402 to move and generating wind power.

The fixed shell 3 of this embodiment is equipped with two protective covers, and the two protective covers cooperate with the two fan blades 4 respectively. The safety of the fan can be improved by installing a protective cover.

The present utility model is not limited to the above-mentioned embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, and any technical solutions that are the same or similar to the present utility model, fall within the protection scope of the present utility model. Inside. The technology, shape, and structural parts not described in detail in the present invention are all known technologies.

Claims (5)

1. A dual-bladed fan, comprising:

a bracket (9);

the motor (5) is arranged in the bracket (9), and the motor (5) comprises a motor body and a motor shaft (6);

the first fan blade (10), the first fan blade (10) is installed on one side of the bracket (9) and is meshed with the motor shaft (6);

the second fan blade (11), the second fan blade (11) is installed in the opposite side of support (9) to with motor shaft intermeshing, and the direction of rotation of second fan blade (11) is opposite with the direction of rotation of first fan blade (10).

2. A double-blade fan according to claim 1, wherein the bracket (9) comprises a base (1), a connecting cylinder (2) arranged on the base (1), a fixed shell (3) arranged on the connecting cylinder (2), and the first blade (10) and the second blade (11) are in rotary fit on two opposite sides of the fixed shell (3).

3. A double-blade fan according to claim 2, characterized in that the motor (5) is arranged in the base (1), the motor shaft (6) is rotatably fitted in the connecting cylinder (2), the fixed housing (3) is rotatably fitted with two connecting rods (7) respectively connected with the first blade (10) and the second blade (11), and the two connecting rods (7) are both meshed with the motor shaft (6).

4. A double-blade fan according to claim 1, characterized in that the end of the motor shaft (6) is provided with an output bevel gear (12), and that one end of the two connecting rods (7) is provided with a first bevel gear (13) and a second bevel gear (14), respectively.

5. The double-blade fan according to claim 4, wherein the first bevel gear (13) coincides with the second bevel gear (14) and is perpendicular to the output bevel gear (12), the first bevel gear (13) and the second bevel gear (14) are respectively meshed with the output bevel gear (12), the motor shaft coincides with and is relatively fixed to the output bevel gear (12), the first blade (10) coincides with and is relatively fixed to the first bevel gear (13), the second blade (11) coincides with and is relatively fixed to the second bevel gear (14), and the first blade (10) and the second blade (11) are inclined in opposite directions.