Air guide device and hair dryer

Abstract

To provide an air guide device for use in a hair dryer. [Solution] The device comprises an outer cover case (20), an inner cover case (30), a clamp assembly (10) and a pin assembly (40), the outer cover case having an intake end (21) and an exhaust end, the inner cover case being attached to the exhaust end and having a radial cross-sectional area that gradually increases in the direction away from the intake end, the clamp assembly being attached within the intake end, and the pin assembly being movably attached to the inner cover case and protruding toward the side opposite the outer cover case, and being used to drive the opening and closing of the clamp assembly so that the air guide device can be fixed to the tip of the hair dryer by the clamp assembly.

Description

[Technical Field]

[0001] The present invention relates to the field of hair dryer technology, and more particularly to an air guide device and a hair dryer. [Background technology]

[0002] Hair dryers, as a common household appliance, are mainly used for drying and styling hair. With the development of society and the improvement of people's living standards, people are increasingly pursuing hair care with hair dryers.

[0003] However, conventional hair dryers all use a screw to connect the wide nozzle, which allows the hair dryer to achieve a better air flow effect. The screw-connected wide nozzle is complicated to install and difficult to remove, resulting in a poor user experience. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to provide a wind guide device and a hair dryer, which solves at least one of the technical problems existing in the prior art. [Means for solving the problem]

[0005] According to a first aspect of the present invention, the present invention provides an air guide device for use in a hair dryer, the air guide device comprising an outer cover casing, an inner cover casing, a clamp assembly and a pin assembly, the outer cover casing having an intake end and an exhaust end, the inner cover casing being disposed at the exhaust end and having a radial cross-sectional area that gradually increases in a direction away from the intake end, the clamp assembly being disposed within the intake end, the pin assembly being movably attached to the inner cover casing and protruding toward the side opposite to the outer cover casing, and being used to drive the clamp assembly to open and close so that the air guide device can be fixed to the tip of the hair dryer by the clamp assembly.

[0006] In one embodiment of the air guide device of the present invention, the clamp assembly comprises a first clamp member, a second clamp member, a third clamp member and a fourth clamp member distributed in an annular array, the first clamp member, the second clamp member, the third clamp member and the fourth clamp member being rotatably mounted between the outer cover case and the inner cover case, one of the pin assemblies is transmission-connected to the first clamp member and the second clamp member, and the other of the pin assemblies is transmission-connected to the third clamp member and the fourth clamp member.

[0007] In one embodiment of the air guide device of the present invention, the pin assembly is provided with a slope structure, which has a first slope at one end of the first clamp member facing the second clamp member, and a second slope at one end of the third clamp member facing the fourth clamp member, and the slope structure is slidably connected to the first slope and the second slope, and is used to drive the opening and closing of the first clamp member, the second clamp member, the third clamp member, and the fourth clamp member.

[0008] In one embodiment of the air guide device of the present invention, a first rotating shaft is provided on the inner cover case, a second rotating shaft is provided on the outer cover case, the first clamping member, the second clamping member, the third clamping member and the fourth clamping member are provided with rotating holes, the second rotating shaft passes through the rotating holes and is connected to the first rotating shaft, and both sides of the pin assembly are transmission-connected to the first rotating shaft.

[0009] In one embodiment of the air guide device of the present invention, the pin assembly includes a pin having a button and a sloped structure, buttonholes are formed on opposite sides of the inner cover case, the button is movably attached to the buttonhole, and the pin is inserted into the button to drive the rotation of the first clamping member, the second clamping member, the third clamping member and the fourth clamping member by the sloped structure.

[0010] In one embodiment of the air guide device of the present invention, the first clamping member, the second clamping member, the third clamping member and the fourth clamping member each include a rotating piece, a rubber strip and a gripping hand, the gripping hand is rotatably attached between the outer cover case and the inner cover case, the rotating piece is rotatably attached to the gripping hand, and the rubber strip is provided on the rotating piece.

[0011] In one embodiment of the air guide device of the present invention, one end of the rotating piece is provided with a rotating groove, and the other end of the rotating piece is provided with a rotating hole, the rotating piece is rotatably mounted in the rotating groove, and the rotating hole is rotatably connected to the second rotating shaft of the outer cover case.

[0012] In one embodiment of the air guide device of the present invention, the first clamping member, the second clamping member, the third clamping member and the fourth clamping member further include an elastic member, one end of which is abutted against the gripping hand and the other end of which is abutted against the outer cover case and / or the inner cover case.

[0013] In one embodiment of the air guide device of the present invention, an air guide rib is provided on one side of the inner cover case facing the outer cover case, and the position of the air guide rib corresponds to the position of the air intake end, and is used to distribute the air blown by the hair dryer to the air intake end.

[0014] According to a second aspect of the present invention, the present invention further provides a hair dryer, comprising a hair dryer body and the above-mentioned air guide device, wherein the air guide device is detachably attached to the front end of the hair dryer. [Effects of the Invention]

[0015] The technical solutions of the embodiments of the present invention have the following beneficial effects: The present invention designs an air guide device and a hair dryer, comprising an outer cover case, an inner cover case, a clamp assembly, and a pin assembly, the inner cover case is located at the exhaust end of the outer cover case, and its radial cross-sectional area gradually increases away from the intake end, thereby slowing down the airflow and increasing the pressure. The clamp assembly is located within the intake end, and the pin assembly is movably attached to the inner cover case, protruding toward the side opposite the outer cover case, and is used to drive the clamp assembly to open when the outer cover case is pressed, so that the clamp assembly can clamp the hair dryer inserted into the intake end when the pressing force of the outer cover case is released, thereby realizing a fixed connection between the air guide device and the hair dryer, reducing the difficulty of installation and removal, and meeting ergonomic requirements.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. [Brief explanation of the drawings]

[0017] In order to more clearly explain the technical solutions of the embodiments of the present invention, the following will briefly describe the drawings that need to be used in the embodiments of the present invention. It is obvious that the drawings described below are only some embodiments of the present invention, and those skilled in the art can further derive other drawings based on these drawings without any creative work. [Figure 1] 1 is a structural diagram of a ventilation device according to an embodiment of the present invention; [Figure 2] 1. FIG. 4 is a structural schematic diagram of the air guide device of FIG. 1 at another angle. [Figure 3] FIG. 2 is an exploded schematic view of the air guide device of FIG. [Figure 4] FIG. 4 is a structural schematic diagram of the outer cover case of FIG. 3. [Figure 5] FIG. 4 is an exploded view of a part of the air guide device of FIG. 3. [Figure 6] FIG. 6 is an exploded schematic view of the pin assembly of FIG. 5. [Figure 7] FIG. 6 is an exploded schematic view of the clamp assembly of FIG. 5. [Figure 8] FIG. 8 is a cross-sectional schematic view of the clamp assembly of FIG. 7. [Figure 9] FIG. 8 is an exploded schematic view of the clamp assembly of FIG. 7. [Figure 10] 10 is a structural schematic diagram of the grip hand of FIG. 9 at another angle. [Figure 11] 10 is a structural schematic diagram of the grip hand of FIG. 9 at another angle. DETAILED DESCRIPTION OF THE INVENTION

[0018] The following embodiments of the present invention will be combined with the drawings to clearly and completely explain the technical solutions in the embodiments of the present invention, and the clear and explained embodiments are not all embodiments but only some embodiments of the present invention. Based on the embodiments of the present invention, any other embodiments that can be obtained by those skilled in the art without any creative work belong to the scope of protection of the present invention.

[0019] It should be further understood that the terms used in the specification of this invention are specific to and must be understood in the description of this invention. The orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" are based on the orientations or positional relationships shown in the drawings and are intended to facilitate and simplify the description of this invention. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured, or operate in a specific orientation, and therefore should not be construed as limitations of this invention. Furthermore, terms such as "first" and "second" are for explanatory purposes only and cannot be considered to indicate or imply relative importance or the number of technical features. Therefore, a feature defined as "first" or "second" can expressly or imply the inclusion of one or more of the feature, and in the description of this invention, the concept of "plurality" refers to two or more than two, unless otherwise clearly and specifically limited.

[0020] Hereinafter, several embodiments of the present invention will be described in detail in conjunction with the drawings. If there is no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0021] As shown in Figures 1 to 11, according to a first aspect of the present invention, the present invention provides an air guide device for use in a hair dryer, the air guide device comprising an outer cover case 20, an inner cover case 30, a clamp assembly 10 and a pin assembly 40, the outer cover case 20 is disposed outside the inner cover case 30, the clamp assembly 10 is disposed between the outer cover case 20 and the inner cover case 30, and the pin assembly 40 is movably attached to one side of the inner cover case 30 away from the outer cover case 20 to form an interlocking system together with the clamp assembly 10, and by pressing the outer cover case 20, the pin assembly 40 can be drawn into the inner cover case 30, thereby opening the clamp assembly 10 and allowing the tip of the hair dryer to be inserted between the clamp assembly 10. When the pressure applied to the outer cover case 20 is released, the pin assembly 40 extends from the inner cover case 30, closing the clamp assembly 10 and quickly clamping the tip of the hair dryer, thereby realizing a fixed connection between the air guide device and the hair dryer, reducing the difficulty of attachment and detachment, and allowing attachment and detachment to be completed with one hand, which reduces the operating steps compared to screw connections and snap fastenings and meets ergonomic requirements.

[0022] By adopting the above technical solutions, the present invention can convert the axial pressing action of the pin assembly 40 into a radial clamping action of the clamp assembly 10 through the interlocking of the pin assembly 40 and the clamp assembly 10, thereby realizing quick one-handed installation and removal. That is, the clamp assembly 10 can be opened and closed by pressing the outer cover case 20. This mechanical transmission design avoids the cumbersome traditional screw connection or the reliance on precise rotation or snap-on alignment. When holding the hair dryer with one hand, the user can trigger the release of the clamp by pressing the outer cover case 20, which is in line with operating intuition, improves efficiency, and reduces wrist injuries.

[0023] In one alternative embodiment, the outer cover case 20 has an intake end 21 and an exhaust end 22, and the inner cover case 30 is located at the exhaust end 22, and its radial cross-sectional area gradually increases away from the intake end 21, thereby creating the reverse effect of a Laval nozzle, gradually reducing the airflow speed, increasing static pressure, and reducing turbulence. A clamp assembly 10 is located within the intake end 21, and a pin assembly 40 is movably attached to the inner cover case 30 and protrudes away from the outer cover case 20. The pin assembly 40 is used to open and close the clamp assembly 10, which can secure the air guide device to the tip of the hair dryer, eliminating the inconvenience of attaching and detaching conventional air nozzles and improving airflow quality.

[0024] In one alternative embodiment, the clamp assembly 10 comprises a first clamp member 10a, a second clamp member 10b, a third clamp member 10c, and a fourth clamp member 10d distributed in an annular array, the first clamp member 10a, the second clamp member 10b, the third clamp member 10c, and the fourth clamp member 10d being rotatably mounted between the outer cover case 20 and the inner cover case 30, one of the pin assemblies 40 being operatively connected to the first clamp member 10a and the second clamp member 10b, and the other of the pin assemblies 40 being operatively connected to the third clamp member 10c and the fourth clamp member 10d, thereby realizing a highly stable radial clamping force due to the symmetrically distributed transmission structure. The four clamping members are arranged in a 90-degree circle to form a force-balanced system. Compared to a clamp with two clamping jaws, this invention not only prevents the tip of the hair dryer from tilting and loosening due to the force being applied to one side, but also distributes the clamping force evenly around the tip of the hair dryer, avoiding local deformation.

[0025] In one alternative embodiment, the pin assembly 40 is provided with a ramp structure 411, which has a first ramp at one end of the first clamp member 10a facing the second clamp member 10b and a second ramp at one end of the third clamp member 10c facing the fourth clamp member 10d, and the ramp structure 411 is slidably connected to the first ramp and the second ramp and is used to drive the opening and closing of the first clamp member 10a, the second clamp member 10b, the third clamp member 10c, and the fourth clamp member 10d. The efficient conversion of the linear motion of the pin 41 into the rotational motion of the clamp members is a key technology for realizing one-handed operation.

[0026] In one alternative embodiment, the inner cover case 30 is provided with a first rotation shaft 33, the outer cover case 20 is provided with a second rotation shaft 23, the first clamping member 10a, the second clamping member 10b, the third clamping member 10c, and the fourth clamping member 10d are provided with rotation holes 113, the second rotation shaft 23 passes through the rotation holes 113 and is then connected to the first rotation shaft 33, both sides of the pin assembly 40 are transmission-connected to the first rotation shaft 33, and the first rotation shaft 33, together with the second rotation shaft 23, realizes precise synchronous movement of the first clamping member 10a, the second clamping member 10b, the third clamping member 10c, and the fourth clamping member 10d, so that the first clamping member 10a, the second clamping member 10b, the third clamping member 10c, and the fourth clamping member 10d can rotate around the first rotation shaft 33 and the second rotation shaft 23.

[0027] In one alternative embodiment, the inner cover case 30 is provided with a first snap 32 and a plurality of exhaust holes 31, the outer cover case 20 is provided with a first engagement groove, the inner cover case 30 is fixedly connected to the outer cover case 20 by engagement between the first snap 32 and the first engagement groove, the plurality of exhaust holes 31 are annularly arranged on the inner cover case 30, and the intake end 21 is connected to the plurality of exhaust holes 31 and is used to exhaust the air entering from the intake end 21.

[0028] In one alternative embodiment, the pin assembly 40 includes a button 42 and a pin 41 having a slope structure 411, holes for the button 42 are formed on opposite sides of the inner cover case 30, the button 42 is movably attached to the hole of the button 42, and the pin 41 is inserted into the button 42 so that the slope structure 411 can drive the rotation of the first clamp member 10a, the second clamp member 10b, the third clamp member 10c, and the fourth clamp member 10d.

[0029] In one alternative embodiment, guide grooves 421 are formed on both sides of the button 42, and the guide grooves 421 are aligned with the first rotation shaft 33 to move the button 42 along the longitudinal direction of the first rotation shaft 33.

[0030] In one alternative embodiment, the first clamping member 10a, the second clamping member 10b, the third clamping member 10c and the fourth clamping member 10d each include a rotating piece 12, a rubber strip 13 and a gripping hand 11, the gripping hand 11 being rotatably mounted between the outer cover case 20 and the inner cover case 30, the rotating piece 12 being rotatably mounted on the gripping hand 11, and the rubber strip 13 being provided on the rotating piece 12, and the combination of a multi-stage rotating structure and an elastic contact surface realizes highly adaptable clamping.

[0031] In one alternative embodiment, a rotation groove 114 is provided at one end of the rotating piece 12, and a rotation hole 113 is provided at the other end of the rotating piece 12, the rotating piece 12 is rotatably mounted in the rotation groove 114, and the rotation hole 113 is rotatably connected to the second rotation shaft 23 of the outer cover case 20.

[0032] In one alternative embodiment, mounting holes 1141 are formed on both sides of the rotation groove 114, and mounting shafts 121 are provided on both sides of the rotation piece 12, and the mounting shafts 121 are rotatably mounted in the mounting holes 1141.

[0033] In one alternative embodiment, the grip hand 11 is provided with a sloped portion 111 and a rotating shaft portion 112, and the rotating shaft portion 112 is provided on one side of the sloped portion 111 away from the rotating hole 113, and the sloped portion 111 forms a first slope and a second slope that align with the slope structure 411, so that the pin assembly 40 drives the grip hand 11 to open and close.

[0034] In one alternative embodiment, the first clamp member 10a, the second clamp member 10b, the third clamp member 10c and the fourth clamp member 10d further include an elastic member 14, one end of which is abutted against the grip hand 11 and the other end of which is abutted against the outer cover case 20 and / or the inner cover case 30, and is used to drive the grip hand 11 to close.

[0035] In one alternative embodiment, the gripping hand 11 is provided with ribs 115, which are provided laterally on both sides of the gripping hand 11 and are used to strengthen the gripping hand 11.

[0036] In one alternative embodiment, an air guide rib 34 is provided on one side of the inner cover case 30 facing the outer cover case 20, and the position of the air guide rib 34 corresponds to the position of the air intake end 21 and is used to distribute the air blown by the hair dryer to the air intake end 21.

[0037] As shown in Figures 1 to 11, according to a second aspect of the present invention, the present invention provides a hair dryer, comprising a hair dryer body and the above-mentioned air guide device, and the air guide device is detachably attached to the tip of the hair dryer.

[0038] In describing the present invention, it is necessary to explain that terms such as "attached," "coupled," and "connected" should be understood in a broad sense unless otherwise specified or limited, and may mean, for example, fixedly connected, detachably connected, or integrated, mechanically connected, or electrically connected. They may be directly connected, indirectly connected via an intermediate medium, or may be internal communication between two elements or an interactive relationship between two elements. Those skilled in the art will be able to understand the specific concepts of the above technical terms in the present invention according to specific circumstances.

[0039] In this invention, unless otherwise specified or limited, a first feature being "above" or "below" a second feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them, without direct contact. Furthermore, a first feature being "above," "above," and "on the top surface" of a second feature may include the first feature being directly above or diagonally above the second feature, or may simply indicate that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "below," and "on the bottom surface" of a second feature may include the first feature being directly below or diagonally below the second feature, or may simply indicate that the horizontal height of the first feature is lower than that of the second feature.

[0040] The following disclosure provides many different embodiments or examples for realizing different structures of the present invention. To simplify the disclosure of the present invention, specific example components and configurations are described below. Of course, these are merely examples and are not intended to limit the present invention. Although the present invention may repeat reference numerals and / or characters in different embodiments, such repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or configurations discussed. Although the present invention provides examples of various specific processes and materials, those skilled in the art may recognize the application of other processes and / or the use of other materials.

[0041] In the description herein, a statement referring to terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" means that the particular feature, structure, material, or characteristic described with reference to that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, general references to such terms do not necessarily refer to the same embodiment or example. In addition, the particular feature, structure, material, or characteristic described may be incorporated in any suitable manner in any one or more embodiments or examples. [Explanation of symbols]

[0042] 10, clamp assembly, 10a, first clamp member, 10b, second clamp member, 10c, third clamp member, 10d, fourth clamp member, 11, grip hand, 111, inclined surface portion, 112, rotating shaft portion, 113, rotating hole, 114, rotating groove, 1141, mounting hole, 115, rib, 12, rotating piece, 121, mounting shaft, 13, rubber strip, 14, elastic member, 20, outer cover case; 21, intake end; 22, exhaust end; 23, second rotation shaft; 30, inner cover case, 31, exhaust hole, 32, first snap, 33, first rotation shaft, 34, air guide rib, 40, pin assembly, 41, pin, 411, inclined surface structure, 42, button, 421, guide groove.

Claims

1. 1. A hair dryer comprising: an air guide device for use in a hair dryer, the air guide device comprising an outer cover case, an inner cover case, a clamp assembly, and a pin assembly, the outer cover case having an intake end and an exhaust end, the inner cover case being attached to the exhaust end and having a radial cross-sectional area that gradually increases in a direction away from the intake end, the clamp assembly being attached within the intake end, and the pin assembly being movably attached to the inner cover case and protruding toward a side opposite the outer cover case, the pin assembly being used to drive the opening and closing of the clamp assembly so that the air guide device can be fixed to the tip of the hair dryer by the clamp assembly.

2. 2. The air guide device of claim 1, wherein the clamp assembly comprises a first clamp member, a second clamp member, a third clamp member, and a fourth clamp member distributed in an annular array, the first clamp member, the second clamp member, the third clamp member, and the fourth clamp member being rotatably mounted between the outer cover case and the inner cover case, one of the pin assemblies being operatively connected to the first clamp member and the second clamp member, and the other of the pin assemblies being operatively connected to the third clamp member and the fourth clamp member.

3. The air guide device described in claim 2, characterized in that the pin assembly is provided with a slope structure, having a first slope at one end of the first clamp member facing the second clamp member, and a second slope at one end of the third clamp member facing the fourth clamp member, the slope structure being slidably connected to the first slope and the second slope and being used to drive the opening and closing of the first clamp member, the second clamp member, the third clamp member, and the fourth clamp member.

4. 4. The air guide device according to claim 3, wherein a first rotation shaft is provided on the inner cover case, a second rotation shaft is provided on the outer cover case, rotation holes are provided in the first clamping member, the second clamping member, the third clamping member and the fourth clamping member, the second rotation shaft passes through the rotation hole and is connected to the first rotation shaft, and both sides of the pin assembly are transmission-connected to the first rotation shaft.

5. The air guide device described in claim 2, characterized in that the pin assembly includes a pin having a button and a sloped structure, button holes are formed on opposite sides of the inner cover case, the button is movably attached to the button holes, and the pin is inserted into the button so that the sloped structure can drive the rotation of the first clamp member, the second clamp member, the third clamp member, and the fourth clamp member.

6. The air guide device described in claim 2, characterized in that the first clamp member, the second clamp member, the third clamp member and the fourth clamp member are provided with a rotating piece, a rubber strip and a grip hand, the grip hand is rotatably attached between the outer cover case and the inner cover case, the rotating piece is rotatably attached to the grip hand, and the rubber strip is provided on the rotating piece.

7. The air guide device according to claim 6, characterized in that a rotation groove is provided at one end of the rotating piece, a rotation hole is provided at the other end of the rotating piece, the rotating piece is rotatably mounted within the rotation groove, and the rotation hole is rotatably connected to a second rotation shaft of the outer cover case.

8. The air guide device described in claim 6, characterized in that the first clamp member, the second clamp member, the third clamp member and the fourth clamp member further comprise an elastic member, one end of the elastic member abutting against the grip hand and the other end of the elastic member abutting against the outer cover case and / or the inner cover case.

9. 2. The air guide device according to claim 1, wherein an air guide rib is provided on one side of the inner cover case facing the outer cover case, the position of the air guide rib corresponds to the position of the air intake end, and the air guide rib is used to distribute the air blown by the hair dryer to the air intake end.

10. A hair dryer comprising a hair dryer body and the air guide device according to any one of claims 1 to 9, wherein the air guide device is detachably attached to a tip of the hair dryer.

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