Electric hair drier capable of automatically adjusting air volume

Abstract

An electric hair drier capable of automatically adjusting air volume is characterized by comprising a shell and an air inlet cover, the shell comprises an air inlet, the air inlet cover is arranged at the air inlet, the air inlet cover is of a barrel-shaped structure formed by the bottom face and the side wall, a plurality of second through holes are formed in the side wall, and the air inlet cover can contract inwards or extend outwards relative to the shell. The shell can seal part or all of the through holes II, so that air is prevented from entering the electric hair drier from the through holes II or is prevented from entering the electric hair drier from the through holes II; when the electric hair drier works or the air inlet amount needs to be adjusted to be large, the air inlet cover extends outwards relative to the shell, and when the electric hair drier does not work or the air inlet amount needs to be adjusted to be small, the air inlet cover can contract towards the interior of the shell, the overall occupied space of the device is kept unchanged, and therefore the effect of rapidly increasing the air inlet amount within a short time is achieved. And meanwhile, the controllable electric hair drier is designed to meet the hobbies of customers.

Description

Technical Field

[0001] The utility model belongs to the field of hair dryers, in particular to an electric hair dryer capable of automatically adjusting the air volume. Background Art

[0002] Hair dryers are mainly used for hair drying and shaping, but can also be used for local drying, heating and physical therapy in laboratories, physiotherapy rooms, industrial production, art, etc. Hair dryers directly rely on the motor to drive the rotor to drive the fan blades to rotate. When the fan blades rotate, air is sucked in from the rear nozzle of the hair dryer, and the centrifugal airflow formed is blown out from the front nozzle of the hair dryer. However, existing hair dryers have the following problems:

[0003] The air intake of ordinary hair dryers is too small, and hair dryers that increase the air intake by increasing the air inlet net are uncontrollable because the air inlet hood cannot be extended or retracted. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a hair dryer with automatically adjustable air volume, aiming to solve the technical problem that the air volume of the hair dryer with increased air intake volume cannot be adjusted under the prior art.

[0006] (2) Technical solution

[0007] A hair dryer capable of automatically adjusting the air volume, characterized in that it comprises a shell and an air inlet hood, the shell comprising an air inlet, the air inlet hood being arranged at the air inlet, the air inlet hood forming a barrel-shaped structure by a bottom surface and side walls, a plurality of through holes 2 being arranged on the side walls, the air inlet hood being able to retract inwardly or extend outwardly relative to the shell, and when the air inlet hood retracts inwardly, the shell can close part or all of the through holes 2, thereby obstructing or reducing the air from entering the interior of the hair dryer through the through holes 2.

[0008] Furthermore, a guide assembly is provided between the shell and the air inlet hood, and the guide assembly includes a movable block and a fixed block. One end of the fixed block is provided with a movable hole corresponding to the movable block, and one end of the movable block close to the air inlet hood is fixedly connected to the air inlet hood. The shell is provided with a fixed part, and the other end of the fixed block is connected to the fixed part. When the air inlet hood moves into the shell, the movable block extends into the movable hole of the fixed block.

[0009] Furthermore, the fixing portion is provided with a slot, the fixing block is provided with a buckle corresponding to the slot, and the fixing block is connected to the fixing portion via the slot and the buckle.

[0010] Furthermore, the guide assembly also includes a spring, one end of the spring close to the air inlet cover is in elastic contact with the moving block, and the other end of the spring is in elastic contact with the fixed part. When the air inlet cover moves into the shell, the moving block extends into the fixed block and moves synchronously, and the spring is compressed between the moving block and the fixed block.

[0011] Furthermore, the guide assembly also includes a locking component, which includes a locking rod and an axle pin. The movable block is provided with a locking groove, one end of the locking rod is provided with a locking buckle corresponding to the locking groove, the locking buckle is correspondingly arranged in the locking groove, the axle pin is arranged on the fixed block, the other end of the locking rod is movably connected to the axle pin, and the locking buckle and the lock groove form a push-type switch.

[0012] Furthermore, it also includes a locking component, which includes an unlocking key, a protrusion, a notch one and a notch two. A connecting portion is provided at one end of the unlocking key, and the connecting portion is fixedly connected to the shell. An unlocking protrusion one and an unlocking protrusion two are provided at the other end of the unlocking key. A notch one corresponding to the position of the unlocking protrusion one and a notch two corresponding to the position of the unlocking protrusion two are provided on the outer wall of the air inlet. The protrusion is provided on the air inlet cover. When the air inlet cover moves into the shell, the protrusion is correspondingly inserted into the notch one or the notch two.

[0013] Furthermore, the locking component also includes a second locking rod, which is symmetrically arranged with the first locking rod and is respectively located on both sides of the moving block.

[0014] Furthermore, the moving block is provided with a guide rail, and when the moving block moves in the movable hole of the fixed block, the guide rail of the moving block corresponds to the guide groove in the movable hole.

[0015] Furthermore, the locking groove is an irregular annular groove, and the lock buckle performs reciprocating motion in the locking groove to achieve the purpose of push-type locking.

[0016] Beneficial Effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The hood has two different air inlet states, which can be easily switched by pressing the hood; when the hair dryer is working, the hood moves relative to the shell to adjust the air intake volume, and when the hair dryer is not working, the hood can be retracted into the shell to keep the overall footprint of the equipment unchanged; the hood forms a barrel-shaped structure with a bottom surface and side walls, and the side walls include a plurality of through holes 2; the hood is arranged at the air inlet, and the hood is fixedly connected to the moving block through a fixing member, and the through holes 2 are evenly distributed around the side walls and arranged in multiple rows, so that the through holes 2 on the side walls are in contact with the air outside the shell, and the air enters the shell through through holes 1 and 2 at the same time, thereby achieving the effect of quickly increasing the air intake volume in a short time, and the controllable design of the hair dryer can meet the preferences of customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : Explosion diagram of the utility model.

[0020] Figure 2 : A partial three-dimensional structural diagram of the shell, air inlet cover and guide assembly of the utility model.

[0021] Figure 3 : Exploded view of the guide assembly of the utility model.

[0022] Figure 4 : A partial three-dimensional structural diagram of the housing and guide assembly of the utility model.

[0023] Figure 5 : A three-dimensional structural diagram of the air inlet cover of the present utility model.

[0024] Figure 6 : A partial cross-sectional view of the utility model hair dryer.

[0025] Figure 7 : Figure 6 A partial enlarged view of middle A.

[0026] Figure 8 : A partial cross-sectional schematic diagram of the utility model when the air inlet cover extends out of the shell.

[0027] Fig. 9 : A partial cross-sectional schematic diagram of the utility model when the air inlet hood is retracted into the shell.

[0028] Fig.10 : A plan view of the guide groove path on one side of the moving block of the utility model.

[0029] Fig.11 : A partial cross-sectional schematic diagram of the principle of the locking component of the utility model.

[0030] Fig.12 :yes Fig.10 A schematic plan view of a guide groove path in another embodiment.

[0031] Fig.13 :yes Fig.10 Schematic diagram of the guide path from Q1 to Q2.

[0032] Fig.14 :yes Fig.10 Schematic diagram of the guide path from Q2 to P3.

[0033] Fig.15 :yes Fig.10 Schematic diagram of the guide path from P3 to Q4.

[0034] Fig.16 :yes Fig.10 Schematic diagram of the guide path from Q4 to Q1.

[0035] Reference numerals:

[0036] 1-housing, 11-air inlet, 111-notch 1, 112-notch 2, 12-motor, 13-fixing part, 131-slot, 2-air inlet cover, 21-through hole 1, 22-through hole 2, 23-side wall, 24-locking hole, 25-protruding part, 26-bottom surface, 27-connecting surface, 3-guide assembly, 31-moving block, 311-contact surface, 312-guide rail, 313-locking slot , 3131-inner wall, 3132-outer wall, 32-locking component, 321-locking rod 2, 322-axle pin, 323-locking rod 1, 324-locking buckle, 33-fixing block, 331-movable hole, 3311-guide groove, 332-buckle, 331-movable hole, 34-spring, 4-locking piece, 5-unlocking key, 51-unlocking protrusion 1, 52-unlocking protrusion 2, 53-connecting part. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] For the sake of clarity, the axis "SN" is used in the figure to indicate the moving direction of the air inlet hood 2. Figure 6 Shown in.

[0039] It should be noted that the orientation used in this utility model is Figure 6 As standard, Figure 6 The direction of X1 is defined as right, Figure 6 The direction of X2 is defined as left. Figure 6 The direction of Y1 is defined as upward. Figure 6 The direction of Y2 is defined as downward.

[0040] It should be noted that, in order to facilitate the explanation of the present utility model, Figures 8 to 9 The fixed block 33 is hidden.

[0041] like Figures 1 to 3 As shown, a hair dryer capable of automatically adjusting the air volume comprises a housing 1 and an air inlet cover 2, wherein the housing 1 comprises an air inlet 11, the air inlet cover 2 is arranged at the air inlet 11, the air inlet cover 2 is formed into a barrel-shaped structure by a bottom surface 26 and a side wall 23, the bottom surface 26 comprises a plurality of through holes 1 21, and the side wall 23 is provided with a plurality of through holes 22; the sizes of the through holes 22 can be the same or different, and the specific shape can be designed according to actual needs, and the plurality of through holes 22 are evenly arranged in multiple rows around the side wall 23;

[0042] It should be noted that when the shell 1 at the air inlet 11 can close part of the through hole 22, part of the air entering the hair dryer through the through hole 22 is reduced. When the shell 1 at the air inlet 11 closes all the through holes 22, the air can only enter the hair dryer through the through hole 1 21, thereby achieving the purpose of adjusting the air intake volume.

[0043] Example 1, reference Figure 1-4 :

[0044] A guide assembly 3 is provided between the shell 1 and the air inlet hood 2. The guide assembly 3 includes a moving block 31 and a fixed block 33. One end of the fixed block 33 is provided with a movable hole 331 corresponding to the moving block 31. One end of the moving block 31 close to the air inlet hood 2 is fixedly connected to the air inlet hood 2. The shell 1 is provided with a fixed portion 13. The other end of the fixed block 33 is connected to the fixed portion 13. When the air inlet hood 2 moves into the shell 1, the moving block 31 extends into the movable hole 331 of the fixed block 33 to limit the movement of the air inlet hood 2.

[0045] The fixing portion 13 is provided with a slot 131 , and the fixing block 33 is provided with a buckle 332 corresponding to the slot 131 . The fixing block 33 is connected to the fixing portion 13 via the slot 131 and the buckle 332 .

[0046] The movable block 31 is provided with a guide rail 312. When the movable block 31 moves in the movable hole 331 of the fixed block 33, the guide rail 312 of the movable block 31 corresponds to the guide groove 3311 in the movable hole 331. The interaction between the guide rail 312 and the guide groove 3311 can prevent the air inlet cover 2 from deviating randomly.

[0047] It should be noted that, in the present invention, the moving block 31 extends into the fixed block 33 to move, thereby providing guidance for the movement trajectory of the air inlet cover 2 .

[0048] Furthermore, if Figures 2 to 3 As shown, the guide assembly 3 also includes a spring 34, one end of the spring 34 close to the air inlet cover 2 is pressed into contact with the moving block 31, and the other end of the spring 34 is pressed into contact with the fixed portion 13. When the air inlet cover 2 moves into the shell 1, the moving block 31 extends into the fixed block 33 and moves synchronously, and the spring 34 is compressed between the moving block 31 and the fixed block 33.

[0049] More specifically, the moving block 31 is provided with a locking groove 313 , and the locking groove 313 at the top of the moving block 31 has the same shape and depth as the locking groove 313 at the bottom, that is, the upper and lower locking grooves 313 are symmetrically arranged.

[0050] like Figures 5 to 10As shown, the guide assembly 3 also includes a locking component 32, which includes a locking rod 323 and an axle pin 322. One end of the locking rod 323 is provided with a lock buckle 324 corresponding to the locking groove 313, the lock buckle 324 is correspondingly arranged in the locking groove 313, the axle pin 322 is arranged on the fixed block 33, and the other end of the locking rod 323 is movably connected to the axle pin 322, that is, the locking rod 323 is movably connected to the fixed block 33 through the axle pin 322.

[0051] like Figures 7 to 10 The locking component 32 further includes a second locking rod 321, which is symmetrically arranged with the first locking rod 323 and is respectively located on both sides of the moving block 31. More specifically, the locking groove 313 includes an outer wall 3131 and an inner wall 3132. When the air inlet cover 2 is fully extended out of the housing 1, Figure 8 The lock buckle 324 is located at the concave point Q1. In actual use, the moving block 31 moves relative to the lock buckle 324. For the sake of convenience, this embodiment is described with the lock buckle 324 moving;

[0052] refer to Fig.10 and Fig.12 The lock buckle 324 switches between the concave point Q1 and the concave point P3 through the closed-loop sliding path of the lock slot 313, forming two different air inlet states of the air inlet cover 2 for selection.

[0053] Specifically, Fig.10 As shown, the locking groove 313 is composed of a groove bottom surface (not shown in the drawings), an inner wall 3131 and an outer wall 3132. A concave point P3 and three convex points P1, P2, and P4 are distributed on the inner wall 3131. A convex point Q3 and three concave points Q1, Q2, and Q4 are distributed on the outer wall 3132. The concave point serves for positioning, and the convex point serves for sliding guide limiting. The convex points P1, P2, and P4 are distributed in a triangular shape. The convex points P2 and P4 are located on both sides of the vertical extension line of the convex point P1. The concave point P3 is located above the convex points P2 and P4 in the horizontal direction and is located between the convex points P2 and P4. Concave point P4 is located between the two vertical extension lines, convex point P2 is located on the right side of the vertical extension line of concave point P3, convex point P4 is located on the left side of the vertical extension line of concave point P3, concave point P3 is located below convex point P1, concave points Q1, Q2, and Q4 are distributed in a triangle, concave points Q2 and Q4 are located on both sides of the vertical extension line of concave point Q1, convex point Q3 is located above concave points Q2 and Q4 in the horizontal direction and is located between the two vertical extension lines of concave points Q2 and Q4, concave point Q2 is located on the right side of the vertical extension line of convex point Q3, concave point Q4 is located on the left side of the vertical extension line of convex point Q3, and convex point Q3 is located below concave point Q1;

[0054] like Fig.10 and Fig.12As shown, when the convex point P1 is located below the horizontal extension line on the left side of the vertical extension line of the concave point Q1, the concave point Q2 is located below the horizontal extension line on the left side of the vertical extension line of the convex point P2, the concave point Q4 is located below the horizontal extension line on the left side of the vertical extension line of the convex point P4, and the convex point Q3 is located below the horizontal extension line on the right side of the vertical extension line of P3; the relative positions of the concave and convex points can also be set symmetrically, and finally the following can be formed. Figures 13 to 16 A sliding switching path that repeats itself in a fixed direction, either clockwise or counterclockwise.

[0055] Specifically, Fig.13 As shown, when the lock buckle 324 is located at the concave point Q1 in the lock groove 313, the air inlet cover 2 extends out of the housing 1 (as shown in FIG. Figure 8 ), at this time, the air inlet cover 2 is pressed, the lock buckle 324 moves from the concave point Q1 to the convex point P1 and is guided by the convex point P1 to slide to the right side to the concave point Q2, releasing the pressure on the air inlet cover 2. Under the restoring elastic force of the spring 34, refer to Fig.14 The lock buckle 324 moves from the concave point Q2 to the convex point P2 and is guided by the convex point P2 to slide to the left side to the concave point P3. At this point, the switch of the lock buckle 324 from the concave point Q1 to the concave point P3 is completed, that is, the switch of the air inlet cover 2 from extending from the shell 1 to retracting into the shell 1 is completed, and the air inlet cover 2 reaches Fig. 9 state.

[0056] Connect, combine Fig.15 If the air inlet cover 2 needs to be extended out of the housing 1 again, the air inlet cover 2 only needs to be pressed again, and the lock buckle 324 moves from the concave point P3 to the convex point Q3 and is guided by the convex point Q3 to slide to the left side to the concave point Q4, and the pressure on the air inlet cover 2 is released. Under the restoring elastic force of the spring 34, the lock buckle 324 moves from the concave point P3 to the convex point Q3 and slides to the concave point Q4. Fig.16 , the lock buckle 324 moves from the concave point Q4 to the convex point P4 and is guided by the convex point P4 to slide to the left side to the concave point Q1.

[0057] In summary, the two different air inlet states of the air inlet cover 2 can be easily switched by simply pressing the air inlet cover 2.

[0058] It should be noted that the moving block 31 is also provided with a contact surface 311, and the contact surface 311 corresponds to the connection surface 27 of the air inlet cover 2;

[0059] Embodiment 2:

[0060] refer to Fig.11 .

[0061] The difference from the first embodiment is that the installation position structure of the locking component is different, and the others are the same, specifically: the locking component includes an unlocking key 5, a protruding member 25, a notch 111 and a notch 2 112, one end of the unlocking key 5 is provided with a connecting portion 53, the connecting portion 53 is fixedly connected to the housing 1, the other end of the unlocking key 5 is provided with an unlocking protrusion 1 51 and an unlocking protrusion 2 52, the outer wall of the air inlet 11 is provided with a notch 111 corresponding to the position of the unlocking protrusion 1 51 and a notch 2 112 corresponding to the position of the unlocking protrusion 2 52, and the protruding member 25 is arranged on the air inlet cover 2;

[0062] When in use, the air inlet hood 2 is pressed toward the inside of the shell 1. When the air inlet hood 2 moves into the shell 1, the protruding piece 25 is inserted into the notch 111. At this time, the shell 1 can partially close the through hole 22; the protruding piece 25 is inserted into the notch 112. At this time, the through hole 22 is completely closed by the shell 1.

[0063] When opening, the unlocking key 5 is pressed, and the unlocking protrusion 1 51 pushes the protruding member 25 out of the notch 111 or the unlocking protrusion 2 52 pushes the protruding member 25 out of the notch 2 112, and under the action of the spring 34, the air inlet cover 2 pops out of the shell 1 to achieve the purpose of unlocking.

[0064] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0065] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A hair dryer capable of automatically adjusting air volume, characterized in that: The invention comprises a shell (1) and an air inlet cover (2), wherein the shell (1) comprises an air inlet (11), the air inlet cover (2) is arranged at the air inlet (11), the air inlet cover (2) is formed into a barrel-shaped structure by a bottom surface (26) and a side wall (23), the side wall (23) is provided with a plurality of through holes (22), the air inlet cover (2) can be retracted inwardly or extended outwardly relative to the shell (1), and when the air inlet cover (2) is retracted inwardly, the shell (1) can close part or all of the through holes (22), thereby preventing or reducing the air from entering the interior of the hair dryer through the through holes (22).

2. The hair dryer capable of automatically adjusting air volume according to claim 1, characterized in that: A guide assembly (3) is provided between the shell (1) and the air inlet hood (2), and the guide assembly (3) comprises a movable block (31) and a fixed block (33); one end of the fixed block (33) is provided with a movable hole (331) corresponding to the movable block (31); one end of the movable block (31) close to the air inlet hood (2) is fixedly connected to the air inlet hood (2); the shell (1) is provided with a fixed portion (13); the other end of the fixed block (33) is connected to the fixed portion (13); when the air inlet hood (2) moves into the shell (1), the movable block (31) extends into the movable hole (331) of the fixed block (33).

3. The hair dryer capable of automatically adjusting air volume according to claim 2, characterized in that: The fixing portion (13) is provided with a clamping slot (131), the fixing block (33) is provided with a clamping buckle (332) corresponding to the clamping slot (131), and the fixing block (33) is clamped to the fixing portion (13) via the clamping slot (131) and the clamping buckle (332).

4. The hair dryer capable of automatically adjusting the air volume according to claim 3, characterized in that: The guide assembly (3) further comprises a spring (34), one end of the spring (34) close to the air inlet cover (2) is in elastic contact with the moving block (31), and the other end of the spring (34) is in elastic contact with the fixed portion (13); when the air inlet cover (2) moves into the shell (1), the moving block (31) extends into the fixed block (33) and moves synchronously, and the spring (34) is compressed between the moving block (31) and the fixed block (33).

5. The hair dryer capable of automatically adjusting air volume according to claim 3, characterized in that: The guide assembly (3) further comprises a locking component (32), wherein the locking component (32) comprises a locking rod (323) and an axle pin (322); the moving block (31) is provided with a locking groove (313); one end of the locking rod (323) is provided with a locking buckle (324) corresponding to the locking groove (313); the locking buckle (324) is correspondingly arranged in the locking groove (313); the axle pin (322) is arranged on the fixed block (33); the other end of the locking rod (323) is movably connected to the axle pin (322); the locking buckle (324) and the locking groove (313) form a push-type switch.

6. The hair dryer capable of automatically adjusting air volume according to claim 4, characterized in that: The invention also comprises a locking component, wherein the locking component comprises an unlocking key (5), a protruding member (25), a notch 1 (111) and a notch 2 (112); one end of the unlocking key (5) is provided with a connecting portion (53), and the connecting portion (53) is fixedly connected to the shell (1); the other end of the unlocking key (5) is provided with an unlocking protrusion 1 (51) and an unlocking protrusion 2 (52); the outer wall of the air inlet (11) is provided with a notch 1 (111) corresponding to the position of the unlocking protrusion 1 (51) and a notch 2 (112) corresponding to the position of the unlocking protrusion 2 (52); the protruding member (25) is arranged on the air inlet cover (2); when the air inlet cover (2) moves into the shell (1), the protruding member (25) is correspondingly inserted into the notch 1 (111) or the notch 2 (112).

7. The hair dryer capable of automatically adjusting air volume according to claim 5, characterized in that: The locking component (32) further comprises a second locking rod (321), wherein the second locking rod (321) is symmetrically arranged with the first locking rod (323) and is respectively located on two sides of the moving block (31).

8. The hair dryer capable of automatically adjusting air volume according to claim 4, characterized in that: The movable block (31) is provided with a guide rail (312); when the movable block (31) moves in the movable hole (331) of the fixed block (33), the guide rail (312) of the movable block (31) corresponds to the guide groove (3311) in the movable hole (331).

9. The hair dryer capable of automatically adjusting air volume according to claim 7, characterized in that: The locking groove (313) is an annular groove, and the locking buckle (324) performs reciprocating motion in the locking groove (313) to achieve the purpose of push-type locking.

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