Air duct structure of blower shell

Abstract

The utility model belongs to the field of household appliances, particularly relates to a blower shell air duct structure, and aims to solve the problems that the air inlet end of an existing blower is single, the rotating speed of a fan needs to be increased in order to increase the air inlet amount, the fan always runs at a high speed, and the service life is shortened. In order to solve the problems that in the prior art, when the rotating speed of a fan reaches the upper limit, the air inlet amount cannot be further increased, the following scheme is provided: the fan comprises a body part and a handle of which the head end is communicated with the body part, the air inlet end of the body part is provided with a tail cover, and the air outlet end of the body part is provided with an air nozzle; the air duct is used for increasing the air volume and arranged at the tail end of the handle, the problems that a traditional air inlet end is single and the air volume is inconvenient to increase are solved through the air duct installed at the tail end of the handle, and after air enters the handle through the ventilation holes in the outer wall of the air duct, the air direction is changed through the flow guide plate to be combined with the air at the original air inlet end.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to an air duct structure of a hair dryer housing. Background Art

[0002] A hair dryer consists of a group of heating wires and a blower. The blower sucks air from one end into the hair dryer, and then the heat generated by the heating wires turns the air into hot air and blows it out.

[0003] The air inlet end of the existing hair dryer is relatively single. In order to increase the air intake, it is necessary to increase the rotation speed of the blower. This will not only reduce the service life due to the blower running at high speed all the time, but also when the rotation speed of the blower reaches the upper limit, the air intake cannot be further increased. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the air inlet end of the hair dryer in the existing technology is relatively single, so that in order to increase the air intake, it is necessary to increase the rotation speed of the blower, which will not only reduce the service life due to the blower running at high speed all the time, but also when the rotation speed of the blower reaches the upper limit, the air intake cannot be further increased. A hair dryer housing air duct structure is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A hair dryer housing air duct structure includes a body part and a handle with its first end connected to the body part. A tail cover is arranged at the air inlet end of the body part, and a nozzle is installed at the air outlet end of the body part.

[0007] An air duct, used to increase the air volume, is arranged at the end of the handle. A plurality of annular ventilation holes are formed in the outer wall of the air duct, and an air inlet hole communicating with the plurality of ventilation holes is formed at the top of the air duct, and the top of the air inlet hole is connected to the end of the handle.

[0008] An annular filter screen, used to filter foreign matters, is arranged at the end of the handle.

[0009] A deflector, used to change the air flow direction, is fixedly arranged on the inner wall of the body part and above the handle. The deflector is arranged in an arc shape with the inner wall of the arc facing the handle.

[0010] In a possible design, the end of the inner wall of the handle close to the air duct is arranged as a frustum-shaped through hole.

[0011] In a possible design, a stop post is fixedly arranged inside the air duct, and one end of the stop post extends into the air inlet hole.

[0012] In a possible design, a second threaded groove is provided at one end of the handle close to the hair dryer barrel, and a second threaded ring mating with the second threaded groove is fixedly provided at the top of the hair dryer barrel.

[0013] In a possible design, a third threaded groove is provided at one end of the handle close to the hair dryer barrel outside the second threaded groove, and a third threaded ring mating with the third threaded groove is fixedly provided at the top of the annular filter net. A partition groove is provided at one end of the hair dryer barrel close to the handle outside the second threaded ring, and the partition groove communicates with a plurality of ventilation holes. The bottom end of the annular filter net is inserted into the interior of the partition groove.

[0014] In a possible design, the nozzle includes a first nozzle, and the first nozzle is frustum-shaped.

[0015] In a possible design, the nozzle further includes a second nozzle. One end of the second nozzle is circular, and the other end is a long-side rectangle.

[0016] In a possible design, first threaded rings are fixedly provided at the large end of the first nozzle and the circular end of the second nozzle, and a first threaded groove mating with the first threaded ring is provided at the air outlet end of the body portion.

[0017] In the present application, during specific use, when the air volume enters through the air inlet end of the body portion, through the hair dryer barrel installed at the end of the handle, the air will enter the interior of the hair dryer barrel through a plurality of ventilation holes. Since a baffle post is provided inside the hair dryer barrel to prevent the air from colliding in multiple directions and disturbing the smoothness of the air flow, then the air enters the interior of the handle through the air inlet holes, and then enters the interior of the body portion. At this time, the air will touch the deflector to change the wind direction, so as to be mixed with the air entering from the air inlet end of the body portion and heated together, so as to increase an additional air inlet while maintaining the original air inlet end, achieving an increase in air volume in the case of avoiding the need for the fan to always run at high speed or when the fan reaches its limit;

[0018] When the air enters through the ventilation holes provided on the outer wall of the hair dryer barrel, it will pass through the annular filter net, and after being filtered, it will finally enter the interior of the body portion to prevent foreign objects from entering;

[0019] Under normal use conditions, the first nozzle can be installed at the air outlet end of the body portion for use. The frustum-shaped design of the first nozzle increases the wind speed at the air outlet. When it is necessary to dry long hair, the second nozzle can be installed for use. After spreading the hair, the long-mouth flat design of the air outlet end of the second nozzle enables a larger area of hair to be dried at one time, increasing the drying area on the original basis.

[0020] In the present utility model, for the air duct structure of a hair dryer housing, by installing a wind tube at the end of the handle, when the original air inlet end is retained, a new air inlet can be added, thereby avoiding the problem that the fan needs to operate at a high speed or cannot increase the air volume when the operation reaches the upper limit.

[0021] In the present utility model, for the air duct structure of a hair dryer housing, through two different structures of nozzle, different nozzles can be installed according to different situations, so that the hair dryer can have more applicability on the original basis. The replacement and installation are realized through threaded connection, which is simple and convenient.

[0022] In the present utility model, during use, the problem of the traditional single air inlet end and inconvenient air volume increase is solved by installing a wind tube at the end of the handle. When the air enters the interior of the handle through the ventilation holes on the outer wall of the wind tube, the air direction is changed by the flow guide plate and combined with the air from the original air inlet end.

[0023] Through two nozzles, replacement can be carried out under different circumstances to achieve different effects, thereby having better applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the main structure of an air duct structure of a hair dryer housing proposed by the present utility model;

[0025] Figure 2 is an exploded structure diagram of an air duct structure of a hair dryer housing proposed by the present utility model;

[0026] Figure 3 is a sectional exploded structure diagram of an air duct structure of a hair dryer housing proposed by the present utility model;

[0027] Figure 4 For the present utility model Figure 3 is an enlarged structure diagram of part A;

[0028] Figure 5 For the present utility model Figure 3 is an enlarged structure diagram of part B;

[0029] Figure 6 is a three-dimensional structure diagram of another nozzle of an air duct structure of a hair dryer housing proposed by the present utility model.

[0030] In the figure: 1, body part; 2, end cap; 3, handle; 4, wind tube; 5, first nozzle; 6, first threaded groove; 7, ventilation hole; 8, annular filter screen; 9, frustum-shaped through hole; 10, flow guide plate; 11, second threaded groove; 12, third threaded groove; 13, third threaded ring; 14, air inlet hole; 15, second threaded ring; 16, partition groove; 17, stop post; 18, second nozzle. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0032] Embodiment 1

[0033] Refer to Figure 1-2 , a hair dryer housing air duct structure, which is applied in the field of household appliances, includes: a body part 1 and a handle 3 with a first end connected to the body part 1. A tail cover 2 is provided at the air inlet end of the body part 1, and a nozzle is installed at the air outlet end of the body part 1;

[0034] A wind cylinder 4 is arranged at the end of the handle 3. A plurality of annular ventilation holes 7 are formed in the outer wall of the wind cylinder 4. An air inlet hole 14 communicating with the plurality of ventilation holes 7 is formed at the top of the wind cylinder 4, and the top of the air inlet hole 14 is connected to the end of the handle 3;

[0035] A deflector 10 is fixedly arranged on the inner wall of the body part 1 and above the handle 3. The deflector 10 is arranged in an arc shape and the inner wall of the arc faces the handle 3;

[0036] In the above technical solution, during specific use, when the air volume enters through the air inlet end of the body part 1, through the wind cylinder 4 installed at the end of the handle 3, the air will enter the inside of the wind cylinder 4 through the plurality of ventilation holes 7, and then the air enters the inside of the handle 3 through the air inlet hole 14, and then enters the inside of the body part 1. At this time, the air will touch the deflector 10 and change the wind direction, so that it is mixed with the air entering from the air inlet end of the body part 1 and heated together, so that when maintaining the original air inlet end, an additional air inlet is added, so as to increase the air volume when the fan does not need to run at high speed all the time or when the fan reaches the upper limit.

[0037] Refer to Figure 5 , a stop post 17 is fixedly arranged inside the wind cylinder 4, and one end of the stop post 17 extends into the air inlet hole 14;

[0038] In the above technical solution, since the stop post 17 is arranged inside the wind cylinder 4, it prevents the air from colliding in multiple directions and disturbing the smoothness of the air flow.

[0039] Refer to Figure 4-5 , an annular filter screen 8. A partition groove 16 located outside the second threaded ring 15 is formed at one end of the wind cylinder 4 close to the handle 3, and the partition groove 16 communicates with the plurality of ventilation holes 7. The bottom end of the annular filter screen 8 is inserted into the partition groove 16.

[0040] In the above technical solution, when the wind enters through the ventilation holes 7 formed in the outer wall of the air duct 4, it will pass through the annular filter net 8, and after being filtered, it will finally enter the interior of the body 1 to prevent foreign objects from entering.

[0041] Reference Figure 1 、 Figure 6 , the air nozzle includes a first air nozzle 5, and the first air nozzle 5 is frustum-shaped;

[0042] The air nozzle further includes a second air nozzle 18. One end of the second air nozzle 18 is circular, and the other end is a long-side rectangle;

[0043] A first thread ring is fixedly arranged at the large end of the first air nozzle 5 and the circular end of the second air nozzle 18, and a first thread groove 6 matching the first thread ring is formed at the air outlet end of the body 1.

[0044] In the above technical solution, under normal use conditions, the first air nozzle 5 can be installed at the air outlet end of the body 1 for use. The frustum-shaped design of the first air nozzle 5 increases the wind speed at the air outlet. When it is necessary to dry long hair, the second air nozzle 18 can be installed for use. After spreading the hair, the long-mouth flat design of the air outlet end of the second air nozzle 18 enables a larger area of hair to be dried at one time, increasing the drying area on the original basis. The replacement installation is achieved through threaded connection, which is simple and convenient.

[0045] Embodiment 2

[0046] Reference Figure 3-5 , based on Embodiment 1, an improvement is made: the inner wall of the handle 3 near the air duct 4 is provided with a frustum-shaped through hole 9;

[0047] A second thread groove 11 is formed at the end of the handle 3 near the air duct 4, and a second thread ring 15 matching the second thread groove 11 is fixedly arranged at the top of the air duct 4;

[0048] A third thread groove 12 is formed at the end of the handle 3 near the air duct 4 outside the second thread groove 11, and a third thread ring 13 matching the third thread groove 12 is fixedly arranged at the top of the annular filter net 8.

[0049] In the above technical solution, the installation of the air duct 4 and the annular filter net 8 is achieved through threaded setting, so as to facilitate disassembly and cleaning.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A hair dryer housing air duct structure, characterized in that, Comprising: A body part (1) and a handle (3) with its head end connected to the body part (1). A tail cover (2) is provided at the air inlet end of the body part (1), and a nozzle is installed at the air outlet end of the body part (1). An air duct (4) for increasing the air volume. The air duct (4) is provided at the end of the handle (3). A plurality of annularly arranged ventilation holes (7) are formed in the outer wall of the air duct (4). An air inlet hole (14) communicating with the plurality of ventilation holes (7) is formed at the top of the air duct (4), and the top end of the air inlet hole (14) is connected to the end of the handle (3). An annular filter net (8) for filtering foreign objects. The annular filter net (8) is provided at the end of the handle (3). A deflector (10) for changing the air flow direction. The deflector (10) is fixedly arranged on the inner wall of the body part (1) and above the handle (3). The deflector (10) is arranged in an arc shape with its arc-shaped inner wall facing the handle (3).

2. The air duct structure of a hair dryer housing according to claim 1, wherein One end of the inner wall of the handle (3) close to the air duct (4) is provided as a frustum-shaped through hole (9).

3. The air duct structure of a hair dryer housing according to claim 2, characterized in that, A retaining post (17) is fixedly arranged inside the air duct (4), and one end of the retaining post (17) extends into the air inlet hole (14).

4. The air duct structure of a hair dryer housing according to claim 3, characterized in that, A second threaded groove (11) is formed at one end of the handle (3) close to the air duct (4). A second threaded ring (15) matching the second threaded groove (11) is fixedly arranged at the top of the air duct (4).

5. The air duct structure of a hair dryer housing according to claim 3, characterized in that, A third threaded groove (12) is formed at one end of the handle (3) close to the air duct (4) outside the second threaded groove (11). A third threaded ring (13) matching the third threaded groove (12) is fixedly arranged at the top of the annular filter net (8). A partition groove (16) is formed at one end of the air duct (4) close to the handle (3) outside the second threaded ring (15), and the partition groove (16) communicates with the plurality of ventilation holes (7). The bottom end of the annular filter net (8) is inserted into the partition groove (16).

6. The air duct structure of a hair dryer housing according to claim 4, characterized in that, The nozzle includes a first nozzle (5), and the first nozzle (5) is frustum-shaped.

7. The air duct structure of a hair dryer housing according to claim 6, characterized in that, The nozzle further includes a second nozzle (18). One end of the second nozzle (18) is circular and the other end is a long-side rectangle.

8. The air duct structure of a hair dryer housing according to claim 7, characterized in that, First threaded rings are fixedly arranged at the large end of the first nozzle (5) and the circular end of the second nozzle (18). A first threaded groove (6) matching the first threaded ring is formed at the air outlet end of the body part (1).

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