A hair dryer and a hair dryer air duct

Abstract

A kind of hair dryer air duct and hair dryer, including air duct and air duct, air duct, air duct one end is used to connect with the air outlet of the hair dryer, air duct has airflow passage, air duct, connect to the other end of air duct, air duct, air duct has inner air duct and outer air duct, inner air duct and outer air duct are provided with support rib between, inner air duct has first flow channel, outer air duct has second flow channel, air duct has first locking position and second locking position in circumferential direction, second locking position is circumferentially staggered with first locking position, at first locking position, inner air duct is engaged with air duct, first flow channel is communicated with airflow passage, second flow channel is communicated with outside, at second locking position, in the axial direction of air duct, the front end of outer air duct is located in the front end rear side of air duct, inner air duct is engaged with air duct, air duct is provided with first axial slot portion, first axial slot portion is between first locking position and second locking position.This embodiment of the utility model realizes the quick switching installation and storage of air duct by rotating locking and sliding cooperation, without completely disassembling, greatly improve the convenience, and structure piece is few, cost is low, and reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of hair dryer technology, and more specifically, to a hair dryer nozzle with an air diffuser installed. Background Technology

[0002] The existing ventilation duct can only be removed from the unit when not in use. This necessitates reinstallation when needed, impacting operational efficiency. The existing snap-on sliding rail structure is complex and costly, hindering cost reduction and ensuring a reliable connection. Utility Model Content

[0003] The purpose of this invention is to provide a hair dryer nozzle that is simple in structure and easy to operate.

[0004] This utility model provides a hair dryer casing, including a blower casing and an expander casing. One end of the blower casing is connected to the air outlet of the hair dryer, and the blower casing has an airflow channel. The expander casing is connected to the other end of the blower casing, and the expander casing has an inner blower casing and an outer blower casing. A supporting rib is provided between the inner blower casing and the outer blower casing. The inner blower casing has a first flow channel, and the outer blower casing has a second flow channel. The blower casing has a first locking position and a second locking position in the circumferential direction. The second locking position is offset from the first locking position in the circumferential direction. At the first locking position, the inner blower casing is engaged with the blower casing, the first flow channel is connected to the airflow channel, and the second flow channel is connected to the outside. At the second locking position, the front end of the outer blower casing is located behind the front end of the blower casing, and the inner blower casing is engaged with the blower casing. The blower casing is provided with a first axial groove, which is located between the first locking position and the second locking position.

[0005] Furthermore, a first circumferential groove is provided at the first locking position. The first circumferential groove extends clockwise along the air duct and is located at the front end of the first axial groove. A first protrusion is provided on the inner circumferential surface of the inner air duct, and the first protrusion engages with the first circumferential groove.

[0006] Furthermore, the rear end of the first axial groove is provided with an opening, and at the second locking position, the first protrusion engages with the opening in the circumferential direction.

[0007] Furthermore, the first protrusion extends circumferentially along the inner surface of the inner duct, and a protrusion is provided on the side of the first protrusion, and a notch is provided on the side of the first circumferential groove, with the protrusion engaging with the notch.

[0008] Furthermore, a second protrusion is provided on the inner circumferential surface of the inner air duct. The second protrusion extends from the other side of the first protrusion along the axial direction of the inner air duct toward the front end of the outer air duct, and the second protrusion is perpendicular to the first protrusion.

[0009] Furthermore, the outer surface of the air duct has a second axial groove, which extends from one side of the first circumference groove along the axial direction of the air duct towards the front end of the air duct.

[0010] Furthermore, the second protrusion is positioned within the first circumferential groove or the second axial groove, or within the first axial groove.

[0011] Furthermore, the first axial groove is parallel to the second axial groove, the first axial groove and the second axial groove have the same width, and the width of the first axial groove and the second axial groove is greater than the width of the second protrusion.

[0012] Furthermore, the circumferential width of the first circumferential groove is greater than the circumferential width of the first protrusion, and the axial length of the first circumferential groove is greater than the axial length of the second protrusion.

[0013] A hair dryer, including the aforementioned nozzle.

[0014] The beneficial effects of this utility model are:

[0015] 1. By switching between the first and second locking positions, the airflow channel can be selectively connected to the external or internal flow channels, meeting various usage needs such as centralized air blowing or diffused air blowing, and improving the user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the hair dryer nozzle of this utility model;

[0017] Figure 2 This is a cross-sectional view of the ventilation duct structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the ventilation duct after installation.

[0019] Figure 4 This is a schematic diagram of the ventilation duct of this utility model in the first and second locking positions;

[0020] Figure 5 This is a schematic diagram of the structure of the ventilation duct of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the ventilation duct of this utility model at the second position;

[0022] The following are the reference numerals in the instruction manual: Hair dryer duct 1, air duct 2, air diffuser 3, airflow channel 21, inner air duct 31, outer air duct 32, support rib 33, first flow channel 311, second flow channel 321, first locking position 4, second locking position 5, first axial groove 22, first circumferential groove 23, first protrusion 312, opening 221, protrusion 3121, notch 231, second protrusion 313, second axial groove 24. Detailed Implementation

[0023] The present invention will be described in detail below with reference to the accompanying drawings: The front end refers to the end in the direction of airflow, i.e., the air outlet side, which is the air outlet side of the duct; the rear end is the end away from the air outlet side; and the side is the air outlet side near or away from the inner duct. The cross-sectional shape of the duct, inner duct, and outer duct is cylindrical or conical. The circumferential length refers to the circumferential arc length.

[0024] like Figure 1 As shown, a hair dryer nozzle 1 includes a nozzle 2 and an amplifier 3. One end of the nozzle 2 is connected to the air outlet of the hair dryer, and the nozzle 2 has an airflow channel 21 for guiding the airflow generated by the hair dryer. The amplifier 3 is connected to the other end of the nozzle 2, as shown in the diagram. Figure 2 and Figure 3 As shown, the air diffuser 3 has an inner air duct 31 and an outer air duct 32. A support rib 33 is provided between the inner air duct 31 and the outer air duct 32. The inner air duct 31 has a first flow channel 311 for guiding concentrated airflow, and the outer air duct 32 has a second flow channel 321 for guiding diffused airflow.

[0025] like Figure 4 As shown, the expansion duct 3 and the air duct 2 are locked in relative rotation. The air duct 2 has a first locking position 4 and a second locking position 5 in the circumferential direction. The second locking position 5 is offset from the first locking position 4 in the circumferential direction. At the first locking position 4, the inner air duct 31 engages with the air duct 2. The first flow channel 311 is connected to the airflow channel 21, and the second flow channel 321 is connected to the outside. At the second locking position 5, the expansion duct 3 moves axially backward relative to the air duct 2. The front end of the outer air duct 32 is located behind the front end of the air duct 2 to realize the storage of the expansion duct 3. The inner air duct 31 is engaged with the air duct 2. The air duct 2 is provided with a first axial groove 22 between the first locking position 4 and the second locking position 5.

[0026] Furthermore, a first circumferential groove 23 is provided at the first locking position 4. The first circumferential groove 23 extends clockwise along the air duct 2. The first circumferential groove 23 is located at the front end of the first axial groove 22. A first protrusion 312 is provided on the inner circumferential surface of the inner air duct 31. The first protrusion 312 engages with the first circumferential groove 23.

[0027] Furthermore, the rear end of the first axial groove 22 is provided with an opening 221, and at the second locking position 5, the first protrusion 312 engages with the opening 221 in the circumferential direction.

[0028] Furthermore, the first protrusion 312 extends circumferentially along the inner surface of the inner air duct 31, and a protrusion 3121 is provided on the side of the first protrusion 312, and a notch 231 is provided on the side of the first circumferential groove 23, with the protrusion 3121 engaging with the notch 231.

[0029] Furthermore, a second protrusion 313 is provided on the inner circumferential surface of the inner air duct 31. The second protrusion 313 extends from the other side of the first protrusion 312 along the axial direction of the inner air duct 31 towards the front end of the outer air duct 32, and the second protrusion 313 is perpendicular to the first protrusion 312.

[0030] like Figure 5 As shown, in order to facilitate the rapid guidance of the ventilation duct 3, the outer surface of the ventilation duct 2 has a second axial groove 24. The second axial groove 24 extends from one side of the first circumference groove 23 along the axial direction of the ventilation duct 2 towards the front end of the ventilation duct 2.

[0031] Furthermore, the second protrusion 313 is positioned within the first circumferential groove 23 or the second axial groove 24, or the first axial groove 22.

[0032] Furthermore, the first axial groove 22 is parallel to the second axial groove 24, the width of the first axial groove 22 and the second axial groove 24 are the same, and the width of the first axial groove 22 and the second axial groove 24 is greater than the width of the second protrusion 313.

[0033] Furthermore, the circumferential width of the first circumferential groove 23 is greater than the circumferential width of the first protrusion 312, and the axial length of the first circumferential groove 23 is greater than the axial length of the second protrusion 313.

[0034] A hair dryer, including the aforementioned nozzle.

[0035] Operating steps of this utility model's ventilation duct:

[0036] 1. The first protrusion 312 and the second protrusion 313 enter the second axial groove 24 and slide to the end of the second axial groove 24;

[0037] 2. The first protrusion 312 and the second protrusion 313 rotate clockwise around the circumferential direction of the air duct 2, and the first protrusion 312 and the second protrusion 313 enter the first circumferential groove 23;

[0038] 3. Until the first protrusion 312 engages with the first circumferential groove 23 and the second protrusion 313 fits into the first circumferential groove 23, the air duct 3 is in the first locked position 4. In this position, the air duct 3 is in use. The air duct 3 has a first flow channel 311 and a second flow channel 321. The first flow channel 311 is connected to the airflow channel 21 of the air duct 2, and the second flow channel 321 is connected to the outside. At this time, the air volume of the air duct 2 is increased.

[0039] 4. The first protrusion 312 and the second protrusion 313 rotate counterclockwise around the circumferential direction of the air duct 2, and the first protrusion 312 and the second protrusion 313 disengage from the first circumferential groove 23 to the first axial groove 22;

[0040] 5. Continue to slide the first protrusion 312 and the second protrusion 313 along the axial direction into the first axial groove 22; 6. Continue to slide the first protrusion 312 and the second protrusion 313 along the axial direction to the end of the first axial groove 22 within the first axial groove 22;

[0041] 7. For example Figure 6 As shown, the first protrusion 312 and the second protrusion 313 rotate counterclockwise around the circumferential direction of the air duct 2. The second protrusion 313 engages with the opening 221. At this time, the air duct 3 is in the second locking position 5. In this position, the air duct 3 is in a retracted state, and the front end of the air duct 3 is located behind the front end of the air duct 2. At this time, the air duct 3 is retracted on the air duct 2.

[0042] This invention achieves rapid switching, installation, and storage of the ventilation duct through rotation locking and sliding cooperation, without the need for complete disassembly, greatly improving ease of use. It also features fewer structural components, lower cost, and higher reliability.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A hair dryer nozzle, characterized in that: Including ventilation ducts and expansion ducts, A hairdryer, one end of which is connected to the air outlet of the hair dryer, has an airflow channel. Ventilation duct, connected to the other end of the ventilation duct. The ventilation duct consists of an inner duct and an outer duct, with supporting ribs between them. The inner duct has a first flow channel, and the outer duct has a second flow channel. The ventilation duct has a first locking position and a second locking position in its circumferential direction, and the second locking position is offset from the first locking position in the circumferential direction. At the first locked position, the inner air duct engages with the outer air duct, the first flow channel connects to the airflow channel, and the second flow channel connects to the outside. At the second locking position, in the axial direction of the air duct, the front end of the outer air duct is located behind the front end of the inner air duct, and the inner air duct is engaged with the outer air duct. The air duct is provided with a first axial groove, which is located between a first locking position and a second locking position.

2. The hair dryer nozzle according to claim 1, characterized in that: A first circumferential groove is provided at the first locking position. The first circumferential groove extends clockwise along the air duct and is located at the front end of the first axial groove. The inner circumferential surface of the inner air duct is provided with a first protrusion, which engages with a first circumferential groove.

3. The hair dryer nozzle according to claim 2, characterized in that: The rear end of the first axial groove is provided with an opening, and at the second locking position, the first protrusion engages with the opening in the circumferential direction.

4. The hair dryer nozzle according to claim 3, characterized in that: The first protrusion extends circumferentially along the inner surface of the inner duct. A protrusion is provided on the side of the first protrusion, and a notch is provided on the side of the first circumferential groove. The protrusion and the notch engage.

5. The hair dryer nozzle according to claim 4, characterized in that: The inner circumferential surface of the inner air duct is provided with a second protrusion. The second protrusion extends from the other side of the first protrusion along the axial direction of the inner air duct toward the front end of the outer air duct, and the second protrusion is perpendicular to the first protrusion.

6. The hair dryer nozzle according to claim 5, characterized in that: The outer surface of the air duct has a second axial groove. The second axial groove extends from one side of the first circumference towards the front end of the air duct along the axial direction of the air duct.

7. The hair dryer nozzle according to claim 6, characterized in that: The second protrusion is located in the first circumferential groove or the second axial groove, or in the first axial groove.

8. The hair dryer nozzle according to claim 7, characterized in that: The first axial groove is parallel to the second axial groove, and the widths of the first axial groove and the second axial groove are the same. The widths of the first axial groove and the second axial groove are greater than the width of the second protrusion.

9. The hair dryer nozzle according to claim 8, characterized in that: The circumferential width of the first circumferential groove is greater than the circumferential width of the first protrusion, and the axial length of the first circumferential groove is greater than the axial length of the second protrusion.

10. A hair dryer, characterized in that: Includes the ventilation duct as described in any one of claims 1-9.

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