Fastening and buckling type air duct

Abstract

The utility model relates to the technical field of hair driers, in particular to an involution fastening type hair dryer which comprises a T-shaped shell, a fan, a power supply device, two end covers and a bottom cover, a control panel and a gear component are arranged on the lower portion of the T-shaped shell, and the fan, the power supply device and the gear component are electrically connected with the control panel. The two ends of the upper portion of the T-shaped shell and the lower end of the T-shaped shell are provided with protruding edges, the end cover and the bottom cover are provided with annular grooves corresponding to the protruding edges, and the protruding edges are embedded in the annular grooves. The T-shaped shell is formed by oppositely combining two half shells, the protruding edge is divided into two circular arcs which are distributed on the two half shells, and the gear assembly is arranged on the side wall of the lower portion of one half shell. The time consumption in the assembling process is greatly saved, the assembling difficulty is reduced, and the assembling efficiency is obviously improved; after the structural design is adopted, the connecting structure of the two half shells is stable and reliable, screw holes do not need to be formed, and the appearance is more attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, in particular to a buckled-type hair dryer. Background Art

[0002] A powerful hair dryer, also known as a violent hair dryer, usually refers to a hair dryer 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] However, most of the existing hair dryers on the market are fixed with screws on their shells. Due to the complex structure of the shell, many parts need to be installed, which makes the shell assembly work more complicated. More importantly, the use of screws for fastening inevitably requires the opening of screw holes for the screws. The screw holes displayed on the shell of the hair dryer seriously affect its appearance and seriously affect the user's evaluation of the appearance of the hair dryer, which is an obvious defect. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a snap-on air duct which does not require many screw holes to be opened on the surface shell and greatly simplifies the shell assembly structure. It has the advantages of a surface-free design, beautiful appearance, easy disassembly and assembly, and a firm connection.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a snap-fitting air duct, comprising a T-shaped shell, a fan installed on the upper part of the T-shaped shell, and a power supply device installed on the lower part of the T-shaped shell, a control panel and a gear assembly installed on the lower part of the T-shaped shell, the fan, power supply device and gear assembly are electrically connected to the control panel, and also comprises two end covers detachably connected to the two ends of the upper part of the T-shaped shell and a bottom cover connected to the lower end part of the T-shaped shell, both ends of the upper part of the T-shaped shell and the lower end part of the T-shaped shell are provided with convex edges, the end covers and the bottom cover are provided with annular grooves corresponding to the convex edges, and the convex edges are embedded in the annular grooves; the T-shaped shell is formed by two half shells being matched together, the convex edges are divided into two arcs and distributed on the two half shells, and the gear assembly is arranged on the lower side wall of one of the half shells.

[0006] Preferably, a connecting sleeve extending into the upper end of the T-shaped shell is provided on the inner side of the end cover, an L-shaped buckle groove is provided on the outer wall of the connecting sleeve, and a buckle block is provided on the inner wall of the upper end of the T-shaped shell, and the buckle block is embedded in the L-shaped buckle groove.

[0007] Preferably, one of the half shells is provided with a screw seat, and the bottom cover is fixedly connected to the screw seat by screws.

[0008] Preferably, the inner wall of one half shell is provided with a buckle hook, and the inner wall of the other half shell is provided with a buckle hole. When the two half shells are matched, the buckle hook is embedded in the buckle hole.

[0009] Preferably, the fan includes a motor electrically connected to the control panel, a turbofan fixed to the motor main shaft and a heat dissipation and ventilation sleeve fixed to the outer wall of the motor. The outer wall of the heat dissipation and ventilation sleeve is covered with a shock-absorbing sleeve, and the shock-absorbing sleeve is fixed to the upper part of the T-shaped shell.

[0010] Preferably, the upper inner wall of the half shell is provided with a plurality of semi-circular radial strips. When the two half shells are matched, the shock absorbing sleeve is clamped and fixed by the semi-circular radial strips respectively located on the two half shells.

[0011] Preferably, the upper inner wall of the half shell is provided with two semi-circular axial stop bars, the inner diameter of the semi-circular axial stop bars is smaller than the outer diameter of the shock-absorbing sleeve, and when the two half shells are matched, the end of the shock-absorbing sleeve abuts against the semi-circular axial stop bars.

[0012] Preferably, a screen or a screen plate is provided between the semi-circular axial stop bar and the end cover.

[0013] The beneficial effect of the present invention is that the present invention provides a snap-fitting air duct. During the assembly process of the snap-fitting air duct, first one half shell is placed on a workbench, the gear assembly is installed on the inner wall of the half shell, and then the fan, power supply device and screen are placed at corresponding positions in the half shell. After plugging in the corresponding wires, the other half shell is aligned with the half shell and snapped together. Finally, two end covers and a bottom cover are installed to the corresponding ends so that the convex edge is embedded in the annular groove to complete the installation. No auxiliary tools are needed for installation, which greatly saves time consumption in the assembly process, reduces the difficulty of assembly, and significantly improves assembly efficiency. After adopting the above-mentioned structural design, the connection structure of the two half shells is stable and reliable, no screw holes are required, and the appearance is more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the buckled air duct of the utility model.

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when the buckled air duct hides one half shell.

[0016] Figure 3 It is a schematic diagram of the exploded three-dimensional structure of the buckled air duct of the utility model.

[0017] Figure 4 This is a schematic diagram of the exploded three-dimensional structure of the buckled air duct of the utility model from another perspective. DETAILED DESCRIPTION

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the embodiments. The contents mentioned in the embodiments are not intended to limit the present invention.

[0019] like Figures 1 to 4The figure shows a snap-fit wind duct, comprising a T-shaped shell and a fan 3 installed on the upper part of the T-shaped shell and a power supply device 11 installed on the lower part of the T-shaped shell. The lower part of the T-shaped shell is equipped with a control panel 12 and a gear assembly 13. The fan 3, the power supply device 11 and the gear assembly 13 are electrically connected to the control panel 12. It also includes two end covers 2 that are detachably connected to the two ends of the upper part of the T-shaped shell and a bottom cover 21 connected to the lower end of the T-shaped shell. Both ends of the upper part of the T-shaped shell and the lower end of the T-shaped shell are provided with a convex edge 14. The end cover 2 and the bottom cover 21 are provided with an annular groove 22 corresponding to the convex edge 14, and the convex edge 14 is embedded in the annular groove 22. The T-shaped shell is formed by two half shells 1 being matched together. The convex edge 14 is divided into two arcs and distributed on the two half shells 1. The gear assembly 13 is arranged on the lower side wall of one of the half shells 1.

[0020] During the assembly process of the snap-fit air duct, first place a half shell 1 on the workbench, install the gear assembly 13 on the inner wall of the half shell 1, and then place the fan 3, power supply device 11 and screen at the corresponding positions in the half shell 1. After plugging in the corresponding wires, align the other half shell 1 with the half shell 1 and snap it together. Finally, install the two end covers 2 and a bottom cover 21 to the corresponding ends so that the convex edge 14 is embedded in the annular groove 22 to complete the installation. No auxiliary tools are needed for installation, which greatly saves time consumption in the assembly process, reduces the difficulty of assembly, and significantly improves assembly efficiency. After adopting the above structural design, the connection structure of the two half shells 1 is stable and reliable, no screw holes are required, and the appearance is more beautiful.

[0021] In this embodiment, the inner side of the end cover 2 is provided with a connecting sleeve 23 extending into the upper end of the T-shaped shell, and the outer wall of the connecting sleeve 23 is provided with an L-shaped snap-fit groove 24. The inner wall of the upper end of the T-shaped shell is provided with a snap-fit block 15, and the snap-fit block 15 is embedded in the L-shaped snap-fit groove 24. During the assembly process of the end cover 2, after aligning the snap-fit block 15 with the entrance of the L-shaped snap-fit groove 24, the end cover 2 is squeezed until the convex edge 14 is completely embedded in the annular groove 22, and then the end cover 2 is rotated until the snap-fit block 15 moves to the bottom of the L-shaped snap-fit groove 24 to complete the locking and fixing of the end cover 2, thereby preventing the end cover 2 from loosening and making the connection more stable.

[0022] In this embodiment, one of the half shells 1 is provided with a screw seat 16, and the bottom cover 21 is fixedly connected to the screw seat 16 by screws to prevent the bottom cover 21 from loosening from the half shell 1. The entire hair dryer only needs two screws to complete the fastening connection of the shell, which has high reliability.

[0023] In this embodiment, a snap-fit hook 17 is provided on the inner wall of one half shell 1, and a snap-fit hole 18 is provided on the inner wall of the other half shell 1. When the two half shells 1 are aligned, the snap-fit hook 17 is automatically embedded in the snap-fit hole 18, which makes assembly simple and quick, and further improves the connection tightness between the two half shells 1, and is highly practical.

[0024] In this embodiment, the fan 3 includes a motor 31 electrically connected to the control board 12, a turbofan 32 fixed to the main shaft of the motor 31, and a heat dissipation and ventilation sleeve 33 fixed to the outer wall of the motor 31. The outer wall of the heat dissipation and ventilation sleeve 33 is covered with a shock-absorbing sleeve 34, and the shock-absorbing sleeve 34 is fixed to the upper part of the T-shaped shell. Specifically, the upper inner wall of the half shell 1 is provided with a plurality of semi-circular radial strips 19. When the two half shells 1 are matched, the shock-absorbing sleeve 34 is clamped and fixed by the semi-circular radial strips 19 respectively located on the two half shells 1. When the two half shells 1 are matched, the fan 3 and the power supply device 11 are simultaneously embedded and fixed. The assembly process is simple and quick. The assembly difficulty of the motor 31, the heat dissipation and ventilation sleeve 33 and the shock-absorbing sleeve 34 is low, the assembly process is small, and the production efficiency is significantly improved.

[0025] In this embodiment, two semi-circular axial stop bars 10 are provided on the upper inner wall of the half shell 1. The inner diameter of the semi-circular axial stop bar 10 is smaller than the outer diameter of the shock-absorbing sleeve 34. When the two half shells 1 are matched, the end of the shock-absorbing sleeve 34 abuts against the semi-circular axial stop bar 10, thereby realizing axial fixation of the fan 3. No additional assembly steps are required during the assembly process, and the assembly efficiency is further improved.

[0026] In this embodiment, a screen or sieve 4 is provided between the semi-circular axial stop bar 10 and the end cover 2, which prevents the air inlet end from sucking in foreign matter and causing damage to the air duct during use, and has high safety and reliability.

[0027] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" means two or more, unless otherwise specifically defined.

[0029] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," and "connect" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection; direct connection, connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A snap-fit type air duct, comprising a T-shaped housing, a fan (3) mounted on the upper portion of the T-shaped housing, and a power supply device (11) mounted on the lower portion of the T-shaped housing, wherein a control panel (12) and a gear assembly (13) are mounted on the lower portion of the T-shaped housing, wherein the fan (3), the power supply device (11) and the gear assembly (13) are electrically connected to the control panel (12), and wherein: The invention also includes two end covers (2) detachably connected to the two ends of the upper part of the T-shaped shell and a bottom cover (21) connected to the lower end of the T-shaped shell. Both ends of the upper part of the T-shaped shell and the lower end of the T-shaped shell are provided with convex edges (14). The end covers (2) and the bottom cover (21) are provided with an annular groove (22) corresponding to the convex edge (14). The convex edge (14) is embedded in the annular groove (22). The T-shaped shell is formed by two half shells (1) being matched together. The convex edge (14) is divided into two arcs and distributed on the two half shells (1). The gear assembly (13) is provided on the lower side wall of one of the half shells (1).

2. The snap-fit type hair dryer according to claim 1, characterized in that: A connecting sleeve (23) extending into the upper end of the T-shaped housing is provided on the inner side of the end cover (2), an L-shaped buckle groove (24) is provided on the outer wall of the connecting sleeve (23), and a buckle block (15) is provided on the inner wall of the upper end of the T-shaped housing, and the buckle block (15) is embedded in the L-shaped buckle groove (24).

3. The snap-fit type hair dryer according to claim 1, characterized in that: One of the half shells (1) is provided with a screw seat (16), and the bottom cover (21) is fixedly connected to the screw seat (16) by screws.

4. The snap-fit type hair dryer according to claim 1, characterized in that: The inner wall of one of the half shells (1) is provided with a buckle hook (17), and the inner wall of the other half shell (1) is provided with a buckle hole (18). When the two half shells (1) are joined together, the buckle hook (17) is embedded in the buckle hole (18).

5. The snap-fit type hair dryer according to claim 1, characterized in that: The fan (3) includes a motor (31) electrically connected to the control panel (12), a turbofan (32) fixed to the main shaft of the motor (31), and a heat dissipation and ventilation sleeve (33) fixed to the outer wall of the motor (31), wherein the outer wall of the heat dissipation and ventilation sleeve (33) is covered with a shock-absorbing sleeve (34), and the shock-absorbing sleeve (34) is fixed to the upper part of the T-shaped housing.

6. The snap-fit type hair dryer according to claim 5, characterized in that: The upper inner wall of the half shell (1) is provided with a plurality of semi-circular radial strips (19). When the two half shells (1) are aligned, the shock-absorbing sleeve (34) is clamped and fixed by the semi-circular radial strips (19) respectively located on the two half shells (1).

7. The snap-fit hair dryer according to claim 5, characterized in that: Two semi-circular axial stop bars (10) are provided on the upper inner wall of the half shell (1), the inner diameter of the semi-circular axial stop bar (10) is smaller than the outer diameter of the shock-absorbing sleeve (34), and when the two half shells (1) are matched, the end of the shock-absorbing sleeve (34) abuts against the semi-circular axial stop bar (10).

8. The snap-fit type hair dryer according to claim 7, characterized in that: A screen or a screen sheet (4) is provided between the semi-circular axial stop bar (10) and the end cover (2).

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