CN219888293U - Fan structure capable of changing air path - Google Patents

Abstract

The utility model relates to the technical field of fans, in particular to a fan structure capable of changing an air path. This fan structure that can change wind path, brushless motor during operation drives drive gear and rotates, drive the first gear rotation of both sides through meshing relationship when drive gear rotates, the threaded rod of lower extreme rotates when driving the rotation of first gear, the guide arm in its outside of threaded rod rotation in-process drive through threaded connection relationship moves along the guide bar, the baffle of lower extreme is carried in the guide arm removal in-process and is removed, the baffle can be to the air-out pipeline, and because two first gears set up in drive gear's both sides, therefore the first gear rotation direction of both sides is opposite, therefore the corresponding two threaded rods of the lower extreme of the first gear of both sides rotate towards opposite direction, simultaneously both sides guide arm moves towards opposite direction, this just makes controllable guide arm carry the baffle to shelter from or open arbitrary air-out groove, accomplish the control to the fan wind path promptly.

Description

Fan structure capable of changing air path

Technical Field

The utility model relates to the technical field of fans, in particular to a fan structure capable of changing an air path.

Background

Fans are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced draft of boilers and industrial kilns; cooling and ventilation in air-conditioning devices and household appliances; drying and selecting grains; the working principle of the fan is basically the same as that of the turbine compressor, except that the change of the pressure is small due to the low flow rate of the gas, and the change of the specific volume of the gas is generally not needed to be considered, namely, the gas is treated as incompressible fluid.

At present, the existing fans are usually arranged by adopting a single air passage in the use process, and the arranged fans can only ventilate a single place under the action of the single air passage, so that the existing fans do not meet the actual needs.

Disclosure of Invention

The utility model aims to provide a fan structure capable of changing an air path, so as to solve the problems that the existing fan usually adopts a single air path arrangement in the use process, and the fan arranged in the way can only ventilate a single place under the action of the single air path and does not meet the actual needs. In order to achieve the above purpose, the present utility model provides the following technical solutions: the fan structure capable of changing the air path comprises a fan main body and a fixed frame, wherein the output end of the fan main body is fixedly connected with an air outlet head, and a brushless motor is arranged on the upper surface of the fixed frame;

the output end of the brushless motor is fixedly connected with a transmission gear, the outer wall of the transmission gear is connected with two first gears in a meshed manner, the two first gears are arranged on two sides of the transmission gear, the end part of the first gear is rotationally connected with the inner wall of the fixed frame, the end parts of the two first gears are fixedly connected with threaded rods, the outer wall threads of the threaded rods are connected with guide rods, the inner walls of the guide rods are slidably connected with guide rods, the end parts of the guide rods are fixedly connected with the inner walls of the fixed frames, and the lower ends of the guide rods are fixedly connected with baffle plates.

As an alternative to the blower structure with changeable air path, the utility model comprises the following steps: the inside of air-out head has seted up the air-out groove, the air-out groove is provided with two.

As an alternative to the blower structure with changeable air path, the utility model comprises the following steps: and the notch parts of the two air outlet grooves are fixedly connected with air outlet pipelines.

As an alternative to the blower structure with changeable air path, the utility model comprises the following steps: the upper surface of air-out head and the outer wall fixed connection of fixed frame, the outer wall fixedly connected with sealing block of baffle.

As an alternative to the blower structure with changeable air path, the utility model comprises the following steps: the outer contour of the sealing block is matched with the inner contour of the air outlet groove, and the sealing block is made of silicone rubber.

As an alternative to the blower structure with changeable air path, the utility model comprises the following steps: the sealing block and the baffle are mutually perpendicular.

As an alternative to the blower structure with changeable air path, the utility model comprises the following steps: the outer wall of fan main part has seted up the heat dissipation groove, the filter screen can be dismantled to the inner wall of heat dissipation groove.

Compared with the prior art, the utility model has the beneficial effects that:

when the fan structure capable of changing the wind path is used, when the wind path of the fan is required to be changed, the brushless motor can be started, the transmission gear is driven to rotate when the brushless motor works, the first gears on two sides are driven to rotate through meshing relationship when the transmission gear rotates, the threaded rod at the lower end is driven to rotate when the first gears rotate, the guide rod at the outer side of the threaded rod is driven to move along the guide rod through threaded connection relationship in the rotating process of the threaded rod, the baffle plate at the lower end moves in the moving process of the guide rod, the baffle plate can move towards the air outlet pipeline, and because the two first gears are arranged on two sides of the transmission gear, the rotation directions of the first gears on two sides are opposite, the corresponding two threaded rods at the lower ends of the first gears on two sides rotate towards opposite directions, and meanwhile, the guide rod on two sides can be controlled to block or open any air outlet groove through the baffle plate, and therefore the control of the wind path of the fan is completed, and the problem that the existing fan is inconvenient to switch multiple wind paths is solved.

When the fan structure with the changeable air path is used, when the baffle moves downwards to shield the corresponding air outlet groove, the sealing block made of the silicon rubber material on the outer wall of the baffle can keep the air tightness of the air outlet groove, heat generated in the running process of the fan main body can be dissipated to the outside through the heat dissipation groove, dust can be prevented from entering in the heat dissipation process by the arrangement of the filter screen, and poor heat dissipation caused by dust backlog is prevented.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a cross-sectional view of the front structure of the present utility model;

FIG. 3 is a partial cross-sectional view of the present utility model;

FIG. 4 is an enlarged view of the structure of FIG. 3A in accordance with the present utility model;

fig. 5 is a schematic top view of the present utility model.

In the figure: 1. a fan main body; 2. an air outlet head; 3. an air outlet groove; 4. an air outlet pipeline; 5. a fixed frame; 6. a brushless motor; 7. a transmission gear; 8. a first gear; 9. a threaded rod; 10. a guide rod; 11. a guide rod; 12. a baffle; 13. a sealing block; 14. a heat sink; 15. and (5) a filter screen.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

The embodiment aims to facilitate solving the problem that the existing fan usually adopts a single air path in the use process, and the fan arranged in the way can only ventilate a single place under the action of the single air path and does not meet the actual requirement, and referring to the figures, the drawings and the figures, the fan structure capable of changing the air path comprises a fan main body 1 and a fixed frame 5, wherein the output end of the fan main body 1 is fixedly connected with an air outlet head 2, and the upper surface of the fixed frame 5 is provided with a brushless motor 6;

the output fixedly connected with drive gear 7 of brushless motor 6, the outer wall meshing of drive gear 7 is connected with first gear 8, first gear 8 is provided with two, two first gears 8 set up in the both sides of drive gear 7, the tip of first gear 8 rotates with the inner wall of fixed frame 5 to be connected, the equal fixedly connected with threaded rod 9 of tip of two first gears 8, the outer wall threaded connection of threaded rod 9 has guide arm 10, guide arm 10's inner wall sliding connection has guide bar 11, guide bar 11's tip and fixed frame 5's inner wall fixed connection, guide arm 10's lower extreme fixedly connected with baffle 12, air-out groove 3 has been seted up to the inside of air-out head 2, air-out groove 3 is provided with two, the equal fixedly connected with air-out pipeline 4 in notch department of two air-out grooves 3, the upper surface and the outer wall fixed frame 5 of air-out head 2.

In this embodiment: when the fan structure capable of changing the wind path is used, when the wind path of the fan is required to be changed, the brushless motor 6 is started, the brushless motor 6 drives the transmission gear 7 to rotate during working, the transmission gear 7 drives the first gears 8 on two sides to rotate through meshing relationship, the threaded rod 9 on the lower end is driven to rotate during rotation of the first gears 8, the guide rod 10 on the outer side of the threaded rod 9 is driven to move along the guide rod 11 through threaded connection in the rotation process of the threaded rod 9, the baffle 12 on the lower end is driven to move in the movement process of the guide rod 10, the baffle 12 can be used for the wind outlet pipeline 4, and as the two first gears 8 are arranged on two sides of the transmission gear 7, the rotation directions of the first gears 8 on two sides are opposite, the corresponding two threaded rods 9 on the lower end of the first gears 8 on two sides rotate in opposite directions, and meanwhile the guide rod 10 on two sides move in opposite directions, so that the guide rod 10 can be controlled to shield or open any wind outlet groove 3 through the baffle 12, and the problem that the existing fan is inconvenient to switch the wind path of the fan is solved.

Example 2

The embodiment aims to facilitate solving the problem that the existing fan usually adopts a single air path in the use process, the fan which is arranged in this way can only ventilate a single place under the action of the single air path and does not meet the actual requirement, the embodiment is an improvement made on the basis of the embodiment 1, specifically, please refer to the figures, the drawings and the figures, the outer wall of the baffle 12 is fixedly connected with the sealing block 13, the outer contour of the sealing block 13 is matched with the inner contour of the air outlet groove 3, the sealing block 13 is made of silicone rubber, the sealing block 13 and the baffle 12 are mutually perpendicular, the outer wall of the fan main body 1 is provided with the heat dissipation groove 14, and the inner wall of the heat dissipation groove 14 is detachable with the filter screen 15.

In this embodiment: when the fan structure capable of changing the air path is used, when the baffle 12 moves downwards to shield the corresponding air outlet groove 3, the sealing block 13 made of the silicon rubber material on the outer wall of the baffle 12 can keep the air tightness of the shielding air outlet groove 3, heat generated in the running process of the fan main body 1 can be dissipated to the outside through the heat dissipation groove, dust can be prevented from entering in the heat dissipation process by the arrangement of the filter screen, and poor heat dissipation caused by dust backlog is prevented.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (7)

1. The utility model provides a fan structure of changeable wind path, includes fan main part (1) and fixed frame (5), its characterized in that: the output end of the fan main body (1) is fixedly connected with an air outlet head (2), and a brushless motor (6) is arranged on the upper surface of the fixed frame (5);

the brushless motor (6) is characterized in that the output end of the brushless motor (6) is fixedly connected with a transmission gear (7), the outer wall of the transmission gear (7) is connected with a first gear (8) in a meshed mode, the first gears (8) are arranged at two sides of the transmission gear (7), the end portions of the first gears (8) are rotationally connected with the inner wall of a fixed frame (5), the end portions of the first gears (8) are fixedly connected with threaded rods (9), guide rods (10) are connected with the outer wall of the threaded rods (9) in a threaded mode, guide rods (11) are connected with the inner wall of the guide rods (10) in a sliding mode, and the end portions of the guide rods (11) are fixedly connected with the inner wall of the fixed frame (5), and baffle plates (12) are fixedly connected to the lower ends of the guide rods (10).

2. A fan structure with changeable air path according to claim 1, wherein: an air outlet groove (3) is formed in the air outlet head (2), and two air outlet grooves (3) are formed.

3. A fan structure with changeable air path according to claim 2, wherein: the notch of the two air outlet grooves (3) are fixedly connected with air outlet pipelines (4).

4. A fan structure with changeable air path according to claim 2, wherein: the upper surface of air-out head (2) is fixedly connected with the outer wall of fixed frame (5), the outer wall fixedly connected with sealing block (13) of baffle (12).

5. The fan structure of claim 4, wherein: the outer contour of the sealing block (13) is matched with the inner contour of the air outlet groove (3), and the sealing block (13) is made of silicone rubber.

6. The fan structure of claim 5, wherein: the sealing block (13) and the baffle (12) are mutually perpendicular.

7. A fan structure with changeable air path according to claim 1, wherein: the fan is characterized in that a radiating groove (14) is formed in the outer wall of the fan main body (1), and a filter screen (15) can be detached from the inner wall of the radiating groove (14).