Single-head assembled fixed air duct

Abstract

The utility model relates to the technical field of hair driers, in particular to a single-head assembly fixed type hair dryer which comprises a handle portion and an air sleeve, a motor, a turbofan and a heat dissipation shell are arranged in the air sleeve, an air channel is formed in the heat dissipation shell, a power supply device and a control panel are arranged in the handle portion, and the motor and the power supply device are electrically connected with the control panel. An axial positioning piece is arranged on the inner wall of the air sleeve, the other end of the air sleeve is in threaded connection with an end cover used for fixing the heat dissipation shell, and the two ends of the heat dissipation shell abut against the axial positioning piece and the end cover respectively. After the structural design is adopted, in the assembling process of the air duct, the motor can be installed and fixed only by plugging the motor and the heat dissipation shell of the motor from one end of the air sleeve and then rotationally fixing the end cover to the end of the air sleeve, and the other end of the heat dissipation shell is blocked by the axial positioning piece so that axial fixing can be achieved; and the structure is stable and reliable, the assembly process is simple, the difficulty is low, the manufacturing cost is obviously reduced, and the product quality and the cost performance are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, in particular to a single-head assembled and fixed hair dryer barrel. Background Art

[0002] A powerful hair dryer, also known as a violent hair dryer barrel, usually refers to a hair dryer barrel product with a high-speed rotating fan. It uses a high-current motor to achieve stronger wind output and faster drying and dust blowing effects.

[0003] In order to improve the overall strength and product quality of the existing violent hair dryer barrels on the market, many manufacturers choose aluminum alloy materials to make the main structure of the violent hair dryer barrels, and end cap structures are provided at both ends of the hair dryer barrel to facilitate the axial fixation of the fan motor. During the production process, high-precision processing equipment and strict quality control processes are required to ensure that each component can meet the design requirements. At the same time, the assembly process also requires professional technicians to perform delicate operations to ensure the overall performance and stability of the product. However, in this way, the assembly process difficulty and processing cost of the violent hair dryer barrel also increase a lot, resulting in ordinary consumers being unable to enjoy high-quality hair dryer barrel products due to the unaffordable purchase cost, and the cost performance is not high. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a single-head assembled and fixed hair dryer barrel that reduces the assembly process difficulty and manufacturing cost on the premise of using high-strength materials.

[0005] To solve the above technical problem, the utility model adopts the following technical scheme: a single-head assembled and fixed hair dryer barrel, including a handle part and a wind sleeve arranged in a T shape with the handle part. A motor, a scroll fan fixedly installed on the main shaft of the motor, and a heat dissipation housing fixed to the outer wall of the motor are installed in the wind sleeve. The heat dissipation housing is provided with an air duct for air circulation. A power supply device and a control board are installed in the handle part. The motor and the power supply device are electrically connected to the control board. An axial positioning member is arranged on the inner wall of the wind sleeve, and an end cap for fixing the heat dissipation housing is threadedly connected to the other end of the wind sleeve. Both ends of the heat dissipation housing are abutted against the axial positioning member and the end cap respectively.

[0006] Preferably, the axial positioning member is a retaining ring integrally formed with the wind sleeve. A shock-absorbing sleeve made of a flexible material is sleeved on the outer wall of the heat dissipation housing. The inner diameter of the retaining ring is smaller than the outer diameter of the shock-absorbing sleeve. Anti-slip rings with an inner diameter smaller than the outer diameter of the heat dissipation housing are arranged at both ends of the shock-absorbing sleeve.

[0007] Preferably, the outer end of the retaining ring extends to the end of the wind sleeve, and the included angle between the handle part and the wind sleeve is 70 to 110 degrees.

[0008] Another preference is that the axial positioning member is a retaining ring integrally formed with the wind sleeve, and the inner diameter of the retaining ring is smaller than the outer diameter of the heat dissipation housing.

[0009] Preferably, the axial positioning member is a ventilation baffle fixedly arranged in the air duct, and the ventilation baffle is cross-shaped or cross-plus-shaped.

[0010] Preferably, a ferrule with a length greater than 3 mm is arranged on the inner side of the end cover. The outer end of the ferrule abuts against the end cover, and the inner end of the ferrule abuts against the heat dissipation housing or the shock-absorbing sleeve.

[0011] Preferably, a screen or a sieve plate is arranged between the outer end of the ferrule and the end cover.

[0012] Preferably, a gear position assembly electrically connected to the control board is installed on the side wall of the handle part. A hollow connecting piece for connecting with the air duct is fixed at the upper end of the handle part, and the wire connecting the motor and the control board passes through the hollow connecting piece.

[0013] The beneficial effects of the present utility model are as follows: The present utility model provides a single-head assembled and fixed air duct. After adopting the above structural design, during the assembly process of the air duct, it is only necessary to insert the motor and its heat dissipation housing into one end of the air duct and then rotate and fix the end cover at the end of the air duct to complete the installation and fixation of the motor. The other end of the heat dissipation housing is blocked by the axial positioning member to achieve axial fixation. It has the advantages of stable and reliable structure, simple assembly process and low difficulty, and the manufacturing cost is significantly reduced, and the product quality and cost performance are significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 20 is a three-dimensional structural schematic diagram of the first embodiment of the single-head assembled and fixed air duct of the present utility model.

[0015] Figure 2 FIG. 24 is a three-dimensional structural exploded schematic diagram of the first embodiment of the single-head assembled and fixed air duct of the present utility model.

[0016] Figure 3 FIG. 28 is a cross-sectional structural schematic diagram of the first embodiment of the single-head assembled and fixed air duct of the present utility model.

[0017] Figure 4 FIG. 32 is a cross-sectional structural schematic diagram of the second embodiment of the single-head assembled and fixed air duct of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with embodiments. The content mentioned in the embodiments does not limit the present utility model.

[0019] Such as Figures 1 to 3As shown in the figure, an embodiment of a single-head assembled fixed hair dryer includes a handle part 1 and a wind sleeve 2 arranged in a T shape with the handle part 1. The included angle between the handle part 1 and the wind sleeve 2 is 70 to 110 degrees. A motor 3 is installed inside the wind sleeve 2, a vortex fan 31 fixed to the main shaft of the motor 3, and a heat dissipation shell 32 fixed to the outer wall of the motor 3. The heat dissipation shell 32 is provided with a air duct 33 for air circulation. A power supply device 11 and a control board 12 are installed inside the handle part 1. The motor 3 and the power supply device 11 are electrically connected to the control board 12. An axial positioning member is provided on the inner wall of the wind sleeve 2. The other end of the wind sleeve 2 is threadedly connected with an end cover 21 for fixing the heat dissipation shell 32. The two ends of the heat dissipation shell 32 are respectively abutted against the axial positioning member and the end cover 21.

[0020] After adopting the above structural design, during the assembly process of the hair dryer, it is only necessary to insert the motor 3 and its heat dissipation shell 32 from one end of the wind sleeve 2 and then rotate and fix the end cover 21 at the end of the wind sleeve 2 to complete the installation and fixation of the motor 3. The other end of the heat dissipation shell 32 is resisted by the axial positioning member to achieve axial fixation. It has the advantages of stable and reliable structure, simple assembly process and low difficulty, significantly reducing the manufacturing cost, and significantly improving the product quality and cost performance.

[0021] In this embodiment, the axial positioning member is a retaining ring 22 integrally formed with the wind sleeve 2. A damping sleeve 23 made of flexible material is sleeved on the outer wall of the heat dissipation shell 32. The inner diameter of the retaining ring 22 is smaller than the outer diameter of the damping sleeve 23. The design of the damping sleeve 23 not only effectively reduces the vibration brought by the motor 3, but also eliminates a large amount of noise generated during the high-speed rotation of the vortex fan 31, significantly reducing the noise pollution problem. Anti-drop rings 24 with an inner diameter smaller than the outer diameter of the heat dissipation shell 32 are provided at both ends of the damping sleeve 23 to prevent the heat dissipation shell 32 from contacting the axial positioning member and generating noise, achieving a better sound insulation effect.

[0022] It should be added that the axial positioning member is a retaining ring 22 integrally formed with the wind sleeve 2. The inner diameter of the retaining ring 22 is smaller than the outer diameter of the heat dissipation shell 32. Without installing the damping sleeve 23, the design of the axial positioning member can also achieve the functions of axial fixation and simple assembly process, and is suitable for occasions with low noise requirements.

[0023] In this embodiment, a ring 26 with a length greater than 3 mm is provided on the inner side of the end cover 21. The outer end of the ring 26 abuts against the end cover 21, and the inner end of the ring 26 abuts against the heat dissipation shell 32 or the damping sleeve 23. Due to the design of the ring 26, the motor 3 can be easily installed in the middle of the wind sleeve 2 to ensure that the center of gravity of the hair dryer is in the middle of the whole, and the comfort during taking or holding and using is relatively high.

[0024] In this embodiment, a screen 27 or a screen plate is provided between the outer end of the ferrule 26 and the end cap 21, which can prevent foreign objects from being sucked into the air inlet end during the use of the air duct, thus avoiding damage to the air duct and ensuring high safety and reliability.

[0025] In this embodiment, a gear position assembly 13 electrically connected to the control board 12 is installed on the side wall of the handle portion 1. A hollow connecting member 14 for connecting with the air sleeve 2 is fixed to the upper end of the handle portion 1. The wire connecting the motor 3 and the control board 12 passes through the hollow connecting member 14. The housing of the handle portion 1 and the air sleeve 2 are both made of metal or alloy materials, which improves the product quality. On the premise of realizing the fixed connection between the handle portion 1 and the air sleeve 2, the hollow connecting member 14 also realizes the hidden layout of the wire, avoiding the wire from contacting the metal shell to conduct electricity and short-circuit, and the wire being exposed to affect the appearance, with stronger practicability.

[0026] As Figure 4 shown, Embodiment 2 of a single-head assembled fixed air duct is different from Embodiment 1 described above in that: the outer end of the retaining ring 22 extends to the end of the air sleeve 2, which further simplifies the structural complexity of the air sleeve 2, reduces the processing amount of the air sleeve 2, and has higher production efficiency.

[0027] In this embodiment, the axial positioning member is a ventilation baffle 25 fixedly arranged in the air sleeve 2. The ventilation baffle 25 is cross-shaped or cross-star-shaped (not shown in the figure), and can also achieve the same effect as the retaining ring 22.

[0028] In the description of the present invention, it should be noted that for orientation terms, such as terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

[0029] In addition, such terms as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise specifically defined.

[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "assembly", "connected", and "connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may also be a mechanical connection; it may be directly connected, or connected through an intermediate medium, and it may be internally connected and communicated between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The above-described embodiments merely represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. Single-head assembled fixed hair dryer, comprising a handle part (1) and a wind sleeve (2) arranged in a T-shape with the handle part (1). A motor (3), a vortex fan (31) fixedly installed on the main shaft of the motor (3), and a heat dissipation housing (32) fixed to the outer wall of the motor (3) are installed in the wind sleeve (2). An air duct (33) for air circulation is provided on the heat dissipation housing (32). A power supply device (11) and a control board (12) are installed in the handle part (1). The motor (3) and the power supply device (11) are electrically connected to the control board (12), and it is characterized in that: An axial positioning member is provided on the inner wall of the wind sleeve (2). The other end of the wind sleeve (2) is threadedly connected with an end cover (21) for fixing the heat dissipation housing (32). Both ends of the heat dissipation housing (32) are abutted against the axial positioning member and the end cover (21) respectively.

2. The single-head assembled fixed hair dryer according to claim 1, wherein: The axial positioning member is a retaining ring (22) integrally formed with the wind sleeve (2), and the inner diameter of the retaining ring (22) is smaller than the outer diameter of the heat dissipation housing (32).

3. The single-head assembled fixed hair dryer according to claim 1, wherein: The axial positioning member is a retaining ring (22) integrally formed with the wind sleeve (2). A shock-absorbing sleeve (23) made of a flexible material is sleeved on the outer wall of the heat dissipation housing (32). The inner diameter of the retaining ring (22) is smaller than the outer diameter of the shock-absorbing sleeve (23). Anti-detachment rings (24) with an inner diameter smaller than the outer diameter of the heat dissipation housing (32) are provided at both ends of the shock-absorbing sleeve (23).

4. The single-head assembled fixed hair dryer according to claim 2 or 3, characterized in that: The outer end of the retaining ring (22) extends to the end of the wind sleeve (2), and the included angle between the handle portion (1) and the wind sleeve (2) is 70 to 110 degrees.

5. The single-head assembled fixed hair dryer according to claim 1, wherein: The axial positioning member is a ventilation baffle (25) fixedly arranged in the wind sleeve (2), and the ventilation baffle (25) is in a cross shape or a rice shape.

6. The single-head assembled fixed hair dryer according to claim 3, wherein: A ring (26) with a length greater than 3 mm is provided on the inner side of the end cover (21). The outer end of the ring (26) abuts against the end cover (21), and the inner end of the ring (26) abuts against the heat dissipation housing (32) or the shock-absorbing sleeve (23).

7. The single-head assembled fixed hair dryer according to claim 6, characterized in that: A screen (27) or a screen piece is provided between the outer end of the ring (26) and the end cover (21).

8. The single-head assembled fixed hair dryer according to claim 1, wherein: A gear position assembly (13) electrically connected to the control board (12) is installed on the side wall of the handle portion (1). A hollow connecting member (14) for connecting with the wind sleeve (2) is fixed at the upper end of the handle portion (1). The wire connecting the motor (3) and the control board (12) passes through the hollow connecting member (14).

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