Joint assembly and hair care appliance

Abstract

The utility model provides a connector assembly and a hair care appliance. The connector assembly comprises a handle connector and a body connector. The main body joint and the handle joint are matched with each other and can be rotationally fixed with each other, so that the main body part can keep a fixed posture at a first angle relative to the handle part; wherein the handle joint is connected with a handle part of the hair care appliance and keeps gas communication with the handle part, the main body joint is connected with a main body part of the hair care appliance and keeps gas communication with the main body part, and gas communication from the handle part to the main body part can be kept through the joint assembly.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a joint assembly and a hair care appliance. BACKGROUND

[0002] The background section provided herein is merely for information and is not necessarily prior art.

[0003] With the improvement of people's living standards, multi-functional styling appliances (such as curling irons, straightening irons, etc.) as daily necessities can dry or make simple curling and straightening styling of hair, and can be used for self-holding multi-functional styling appliances to dry and style hair, which is very convenient to use.

[0004] The multi-functional styling appliance can be used as a hair dryer and as a styling appliance (e.g. curling, straightening, etc.). Generally, the multi-functional styling appliance can provide a gas flow through an extended gas flow path through the device, which produces hot air at the outlet through a heating assembly, so that the multi-functional styling appliance can dry and style the hair.

[0005] The multi-functional styling appliance in the prior art has a fixed overall shape and is mostly a straight rod structure, which cannot be bent and is inconvenient to store and operate. Moreover, when the user operates the multi-functional styling appliance and processes the hair through the multi-functional styling appliance, the hand holding position is too high and the center of gravity is not ergonomic, which can easily cause fatigue after a long time of use.

[0006] There is a multi-functional styling appliance in the prior art that can realize both upright and bent states through an end face rotation and bending method. However, this multi-functional styling appliance at least has the following disadvantages: 1. The multi-functional styling appliance is relatively hard after being bent, which is less acceptable to female users; 2. The multi-functional styling appliance forms a bent air duct after being bent, which is not convenient for gas flow, requires a larger power motor, and makes the multi-functional styling appliance cost higher; 3. The multi-functional styling appliance has a large noise, and considering that the multi-functional styling appliance needs to be close to the user's ear during use, the user's experience is poor; 4. The end face rotation of 180 degrees will drag the internal wiring to twist, reducing the service life of the wiring harness. UTILITARIAN CONTENT

[0007] The present disclosure provides a joint assembly and a hair care appliance.

[0008] According to one aspect of the present disclosure, a joint assembly is provided for a hair care appliance, the hair care appliance comprising a main body portion and a handle portion, which comprises:

[0009] a handle joint;

[0010] a body joint that cooperates with the handle joint and is rotatably fixed therewith to enable the body portion to be held in a fixed attitude relative to the handle portion at a first angle; wherein the handle joint is connected to and maintains gas communication with a handle portion of the hair care appliance, the body joint is connected to and maintains gas communication with a body portion of the hair care appliance, and the gas communication from the handle portion to the body portion is maintained through the joint assembly.

[0011] According to at least one embodiment of the joint assembly of the present disclosure, the first angle is greater than or equal to 85° and less than or equal to 180°.

[0012] According to at least one embodiment of the joint assembly of the present disclosure, when the first angle is 180°, a first break exists between the outer surfaces of the body joint and the handle joint; and when the first angle is 90°, a second break exists between the outer surfaces of the body joint and the handle joint, the first break having a maximum depth that is greater than or equal to the maximum depth of the second break.

[0013] According to at least one embodiment of the joint assembly of the present disclosure, the body portion and the handle portion are each cylindrical and have substantially equal outer diameters; and the joint assembly has a lateral width that is less than or equal to the outer diameters.

[0014] According to at least one embodiment of the joint assembly of the present disclosure, further comprising a flow director positioned relative to the handle joint in a constant position.

[0015] According to at least one embodiment of the joint assembly of the present disclosure, the handle portion has a longitudinal axis, and the flow director extends in a direction that is oblique to the longitudinal axis.

[0016] According to at least one embodiment of the joint assembly of the present disclosure, the flow director is oblique to the longitudinal axis in the direction of gas flow in the gas flow path.

[0017] According to at least one embodiment of the joint assembly of the present disclosure, the flow director is configured to direct the gas to the gas inlet of the body portion through at least one side of the gas outlet of the handle portion.

[0018] According to at least one embodiment of the joint assembly of the present disclosure, there are two flow directors configured to direct the gas to the gas inlet of the body portion through both sides of the gas outlet of the handle portion.

[0019] According to the joint assembly of at least one embodiment of the present disclosure, the flow director comprises a flow plate, the flow plate comprises a curved surface, the curved surface comprises an outer side and an inner side relative to a longitudinal axis of the handle portion, when the gas flows, the gas is guided from at least one side of the gas outlet of the handle portion to the gas inlet of the main body portion through the outer side and / or the inner side.

[0020] According to the joint assembly of at least one embodiment of the present disclosure, the flow director is formed in the handle joint.

[0021] According to the joint assembly of at least one embodiment of the present disclosure, the handle joint comprises a first joint component and a second joint component, the first joint component and the second joint component are fixedly connected through a connecting assembly, and the first joint component and the second joint component are relatively stationary.

[0022] According to the joint assembly of at least one embodiment of the present disclosure, the connecting assembly is arranged in a direction parallel to the pivot axis of the joint assembly.

[0023] According to the joint assembly of at least one embodiment of the present disclosure, the first joint component comprises a first base and a first ring component connected to the first base; one flow director is arranged in the first ring component; the second joint component comprises a second base and a second ring component connected to the second base; another flow director is arranged in the second ring component.

[0024] According to the joint assembly of at least one embodiment of the present disclosure, the first joint component further comprises a first shielding portion connected to the first base; the second joint component further comprises a second shielding portion connected to the second base, when the first joint component and the second joint component are assembled, the first shielding portion and the second shielding portion abut each other and are used together to block the gas flowing in the direction of the longitudinal axis, and make the gas flow to both sides of the transverse direction of the first shielding portion and the second shielding portion.

[0025] According to the joint assembly of at least one embodiment of the present disclosure, the first ring component includes a first end in the axial direction and a second end corresponding to the first end; wherein the first end of the first ring component is formed with a first annular protrusion, the size of the first annular protrusion is smaller than that of the first ring component, and the first annular protrusion has the same central axis as the first ring component; the outer circumferential surface of the first annular protrusion is provided with a first limiting component; the second ring component includes a first end in the axial direction and a second end corresponding to the first end; wherein the first end of the second ring component is formed with a second annular protrusion, the size of the second annular protrusion is smaller than that of the second ring component, and the second annular protrusion has the same central axis as the second ring component, and the outer circumferential surface of the second annular protrusion is provided with a second limiting component.

[0026] According to the joint assembly of at least one embodiment of the present disclosure, the joint assembly includes a sealing cover plate, one sealing cover plate is arranged at the second end of the first ring component of the handle joint; and the other sealing cover plate is arranged at the second end of the second ring component.

[0027] According to the joint assembly of at least one embodiment of the present disclosure, the inner side of the sealing cover plate is provided with a flow guide part, the flow guide part is arranged close to the flow guide, and the flow guide part cooperates with the flow guide to form a flow guide air duct towards the gas inlet of the main body part.

[0028] According to the joint assembly of at least one embodiment of the present disclosure, the main body joint includes a main body base and a main body ring component connected with the main body base; the first ring component and the main body ring component are rotatably connected; and the second ring component is rotatably connected with the main body ring component.

[0029] According to the joint assembly of at least one embodiment of the present disclosure, the main body ring component includes a first end and a second end in the axial direction, and an inner flange is formed at each of the first end and the second end in the axial direction, and a limiting structure is arranged on the inner flange; when the handle joint and the main body joint are assembled, the first annular protrusion is rotatably arranged in the inner flange of the first end of the main body ring component; the second annular protrusion is rotatably arranged in the inner flange of the second end of the main body ring component; and the first limiting component and the second limiting component can cooperate with the limiting groove, and the handle joint and the main body joint are kept in a fixed posture at a first angle.

[0030] According to another aspect of the present disclosure, a hair care appliance is provided, which includes the above-mentioned joint assembly. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

[0032] Figure 1 is a structural schematic of a longitudinal counter-rotation state of a hair care appliance according to an embodiment of the present disclosure.

[0033] Figure 2 is another angle of a structural schematic of a longitudinal counter-rotation state of a hair care appliance according to an embodiment of the present disclosure.

[0034] Figure 3 is a structural schematic of a relative bending state of a hair care appliance according to an embodiment of the present disclosure.

[0035] Figure 4 is another angle of a structural schematic of a relative bending state of a hair care appliance according to an embodiment of the present disclosure.

[0036] Figure 5 is a partial structural schematic of a hair care appliance according to an embodiment of the present disclosure.

[0037] Figure 6 is a structural schematic of a joint assembly of a hair care appliance according to an embodiment of the present disclosure.

[0038] Figures 7 to 9 is a structural schematic of a joint assembly of a hair care appliance according to an embodiment of the present disclosure.

[0039] Figure 10 is a structural schematic of a main body joint of a hair care appliance according to an embodiment of the present disclosure.

[0040] Figure 11 is a structural schematic of a handle joint of a hair care appliance according to an embodiment of the present disclosure.

[0041] Figure 12 is a cross-sectional structural schematic of a joint assembly of a hair care appliance according to an embodiment of the present disclosure (longitudinal alignment state).

[0042] Figure 13 is a structural schematic of a sealing cover plate of a hair care appliance according to an embodiment of the present disclosure.

[0043] Figure 14 is a cross-sectional structural schematic of a joint assembly of a hair care appliance according to an embodiment of the present disclosure (relative bending state).

[0044] Figure 15 and Figure 16 are structural diagrams of different angles of a handle joint of a hair care appliance according to an embodiment of the present disclosure.

[0045] The reference numerals in the figures are specifically as follows:

[0046] 100 handle portion

[0047] 200 main body portion

[0048] 300 joint assembly

[0049] 310 handle joint

[0050] 311 first joint component

[0051] 311A first base

[0052] 311B first ring component

[0053] 311C first shielding portion

[0054] 311D first annular protrusion

[0055] 311E first limiting component

[0056] 312 second joint component

[0057] 312A second base

[0058] 312B second ring component

[0059] 312C second shielding portion

[0060] 312D second annular protrusion

[0061] 312E second limiting component

[0062] 313 connecting assembly

[0063] 320 main body joint

[0064] 321 main body base

[0065] 322 main body ring component

[0066] 322A limiting structure

[0067] 330 flow guide

[0068] 340 sealing cover plate

[0069] 341 flow guiding portion

[0070] 350 first cross section

[0071] 360 second section

[0072] 400 heater

[0073] 500 rectifier

[0074] 600 motor

[0075] 700 user interaction device. DETAILED DESCRIPTION

[0076] The present disclosure will be further described in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely exemplary and are not intended to limit the disclosure. In addition, it should be noted that only parts related to the present disclosure are shown in the drawings for the convenience of description.

[0077] It should be noted that the embodiments and features in the embodiments in the present disclosure can be combined with each other without conflict. The technical solutions of the present disclosure will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0078] Unless otherwise specified, the exemplary embodiments / examples shown will be understood as providing exemplary features of various details that can implement the technical concepts of the present disclosure in practice. Therefore, unless otherwise specified, the features of various embodiments / examples can be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of the present disclosure.

[0079] In the drawings, cross-hatching and / or shading are generally used to make the boundaries of adjacent components clear. Thus, unless otherwise specified, the presence of cross-hatching or shading does not convey or imply any preference or requirement for specific material, material properties, dimensions, proportions, commonality of the illustrated components, and / or any other characteristic, attribute, property, or the like of the components. In addition, in the drawings, the size and relative sizes of components can be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence can be performed in a different order than described. For example, two consecutively described processes can be performed substantially simultaneously or in an order opposite to that described. In addition, the same reference numbers represent the same components.

[0080] When a component is referred to as being "on" or "on top of", "connected to", or "coupled to" another component, it can be directly on, directly connected to, or directly coupled to the other component, or intervening components can be present. However, when a component is referred to as being "directly on", "directly connected to", or "directly coupled to" another component, there are no intervening components present. To that end, the term "connected" can refer to a physical or electrical connection, etc., with or without intervening components.

[0081] For descriptive purposes, the disclosure can use spatially relative terms, such as "beneath", "below", "lower", "under", "above", "upper" and "on" and the like, to describe the relative relationship between one component and another component as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, a component described as "below" or "beneath" another component would then be oriented "above" the other component. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0082] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, to the extent that the terms "including", "includes", "having", "has", "united", "unites", "containing", "contains" and variants are used in either the detailed description and / or the claims, such terms are intended to be inclusive in a manner similar to the term "comprising" as an open transition term without precluding any additional or other elements. It is also noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as synonyms for "about", so that the term "substantially", "approximately", and / or similar terms are used to account for minor variations from the perfect.

[0083] Figure 1 is a structural schematic of a longitudinal counter-rotation state of a hair care appliance according to an embodiment of the present disclosure. Figure 2 is a structural schematic of another angle of a longitudinal counter-rotation state of a hair care appliance according to an embodiment of the present disclosure. Figure 3 is a structural schematic of a relative bent state of a hair care appliance according to an embodiment of the present disclosure.Figure 4 is a structural schematic view of another angle of a relative bending state of a hair care appliance according to an embodiment of the present disclosure. Figure 5 is a partial structural schematic view of a hair care appliance according to an embodiment of the present disclosure.

[0084] As shown in Figures 1 to 5 , the hair care appliance of the present disclosure can include a handle portion 100, a main body portion 200, a joint assembly 300, and the like. In use, a user can hold the handle portion 100 and direct the free end of the main body portion 200 toward hair, at which point gas can enter the interior of the handle portion 100 through a through hole formed in the handle portion 100, flow through the handle portion 100, the joint assembly 300, and the main body portion 200, and exit from the free end of the main body portion 200. Accordingly, since the main body portion 200 has a heater 400 disposed therein, the user can be provided with hot air by the main body portion 200 at this point.

[0085] Specifically, the main body portion 200 and the handle portion 100 of the present disclosure are both cylindrical and have substantially equal outer diameters, thereby enabling the hair care appliance of the present disclosure to be conveniently stored and easily held by a user. The central axis of the handle portion 100 is formed as the longitudinal axis of the handle portion 100. In addition, the main body portion 200 can also include a central axis. In each implementation form of the present disclosure, the handle portion 100 is disposed substantially vertically.

[0086] As shown in Figure 5 , the hair care appliance of the present disclosure can also include a heater 400, a rectifier 500, a motor 600, a fan, a printed circuit board, and a user interaction device 700, and the like.

[0087] The heater 400 is disposed within the main body portion 200, and accordingly, when gas flows through the heater 400, the heater 400 can heat the gas. In one specific embodiment, the heater 400 can include a plurality of electrically resistive wires. Of course, the heater 400 of the present disclosure can also be implemented using other types of heating elements.

[0088] The rectifier 500 is disposed within the main body portion 200 and is located upstream of the heater 400 in the direction of gas flow within the hair care appliance, such that the gas passes through and is rectified by the rectifier 500 before flowing through the heater 400. As a result, the gas can flow uniformly through the heater 400 and be uniformly heated by the heater 400, thereby improving the temperature distribution uniformity of the hot air exiting the main body portion 200.

[0089] A motor 600 and a fan (not shown) are disposed within the handle portion 100, wherein the motor 600 is configured to drive the fan to rotate to generate air flow within the air flow path. The motor 600 and the fan are positioned close to the joint assembly 300 within the handle portion 100, such that when the motor 600 rotates, the air sucked by the fan can flow into the joint assembly 300 in a shortest possible path and then flow to the body portion 200 through the joint assembly 300, thereby reducing the loss of air during the flow.

[0090] In the present disclosure, a printed circuit board (not shown) is positioned within the handle portion 100 and is positioned closer to the joint assembly 300 than the motor 600 and the fan; thus, the air sucked by the motor 600 and the fan can flow through the printed circuit board, thereby cooling the electronic components on the printed circuit board and improving the service life of the printed circuit board.

[0091] A user interaction device 700 is disposed on the handle portion 100. In one specific embodiment, the user interaction device 700 can be a button, and the user can operate the hair care appliance by triggering the button. In the present disclosure, the projection (projection on the plane of the longitudinal axis) of the user interaction device 700 does not coincide with the projection (projection on the plane of the longitudinal axis) of the motor 600, such that the user does not directly hold the area where the motor is located, thereby reducing the influence of the vibration generated by the motor on the user and improving the user experience.

[0092] Holes are formed on the handle portion 100, and the air inlet of the handle portion 100 is formed through the holes, and the air inlet of the handle portion 100 does not intersect with the user interaction device 700, such that when the user holds the handle portion 100, the user's hand does not cover the holes, thereby not affecting the air entering the handle portion 100.

[0093] In a preferred embodiment, the length of the body portion 200 is about 1 / 4 of the total length of the hair care appliance; that is, the body portion 200 of the present disclosure has a relatively short size, thereby facilitating the user to hold the hair care appliance and improving the user experience.

[0094] In the present disclosure, as shown in Figures 1 to 4 The handle portion 100 and the body portion 200 are pivotally coupled to each other through the joint assembly 300, such that the body portion 200 and the handle portion 100 are longitudinally aligned or the body portion 200 and the handle portion 100 are relatively bent. Specifically, as shown in Figure 1 and Figure 2 When the handle portion 100 and the body portion 200 are in the longitudinally aligned state, the central axis of the handle portion 100 is disposed substantially vertically, and the central axis of the body portion 200 is disposed substantially coinciding with the central axis of the handle portion 100. AsFigure 3 and Figure 4 As shown, when the handle portion 100 and the main body portion 200 are in a relatively bent state, an angle is formed between the central axis of the handle portion 100 and the central axis of the main body portion 200, which is the first angle described below. In a specific embodiment, the first angle may be greater than or equal to 85° and less than or equal to 180°.

[0095] The handle portion 100 and the main body portion 200 have a gas flow path extending through the handle portion 100 and the main body portion 200 from the gas inlet in the handle portion 100 to the gas outlet in the main body portion 200; when the gas flows along the gas flow path, the gas flows sequentially through the handle portion 100, the connector assembly 300 and the main body portion 200, and is discharged from the gas outlet at the free end of the main body portion 200.

[0096] The structure of the connector assembly 300 will be described in detail below with reference to the accompanying drawings.

[0097] Figure 6 This is a schematic diagram of the connector assembly of a hair care device according to one embodiment of the present disclosure. Figures 7 to 9 This is a schematic diagram of the connector assembly of a hair care device according to one embodiment of the present disclosure at different angles. Figure 10 This is a schematic diagram of the main connector 320 of a hair care device according to one embodiment of the present disclosure. Figure 11 This is a schematic diagram of the handle connector 310 of a hair care device according to one embodiment of the present disclosure.

[0098] like Figures 6 to 11 As shown, the connector assembly 300 of this disclosure may include components such as a handle connector 310, a main connector 320, and a flow guide 330.

[0099] The handle connector 310 and the main body connector 320 can cooperate with each other and are pivotally connected. That is, the handle connector 310 and the main body connector 320 of this disclosure can be rotatably fixed to each other, so that the main body 200 can maintain a fixed posture relative to the handle 100 at a first angle.

[0100] The handle connector 310 maintains gas communication with the handle portion 100, and the main body connector 320 maintains gas communication with the main body portion 200. Thus, the handle portion 100, the connector assembly 300, and the main body portion 200 can jointly form a gas flow path. In other words, the handle connector 310 of this disclosure can be fixed to the handle portion 100, and the main body connector 320 can be fixed to the main body portion 200. Therefore, based on the pivotal connection between the handle connector 310 and the main body connector 320, the main body portion 200 can rotate relative to the handle portion 100.

[0101] In the present disclosure, the gas flow path can be sealed within the handle portion 100, the joint assembly 300, and the body portion 200 regardless of whether the handle portion 100 and the body portion 200 are in the longitudinal alignment state or the relative bending state. That is, at this time, the gas cannot leak from the portion between the gas inlet of the handle portion 100 and the gas outlet of the body portion 200.

[0102] In addition, the joint assembly 300 of the present disclosure has a transverse width, where the transverse direction is the direction of the pivot axis of the joint assembly 300, and the transverse width is the size of the joint assembly 300 in the direction of the pivot axis. Preferably, the transverse width is less than or equal to the outer diameter of the handle portion 100 or the body portion 200, so that the joint assembly 300 of the present disclosure does not occupy additional storage space, and makes the hair care appliance easier to store.

[0103] The flow guide 330 is configured to maintain a constant position relative to the handle portion 100 in both the longitudinal alignment and the relative bending; thus, the flow guide 330 can guide the gas in the gas flow path so that the gas does not generate or as little as possible generates turbulence in the gas flow path, so that the hair care appliance of the present disclosure has smaller wind tunnel loss.

[0104] In a preferred embodiment, the flow guide 330 is formed in the handle joint 310; in the present disclosure, the flow guide 330 is configured to guide the gas to flow through the heater 400; that is, in the direction of the flow of the gas in the gas flow path, the flow guide 330 is located on the upstream side of the heater 400.

[0105] To achieve efficient flow guiding of the gas in the gas flow path, the flow guide 330 of the present disclosure extends in a direction inclined to the longitudinal axis; specifically, the flow guide 330 of the present disclosure is inclined to the longitudinal axis in the direction of the flow of the gas in the gas flow path; in other words, the flow guide 330 of the present disclosure is inclined to the longitudinal axis in the direction from upstream to downstream of the gas in the gas flow path.

[0106] In the present disclosure, the flow guide 330 is configured to guide the gas to flow through at least one side of the gas outlet of the handle portion 100 to the gas inlet of the body portion 200. More preferably, the flow guide 330 is two, and the flow guide 330 is configured to guide the gas to flow through both sides of the gas outlet of the handle portion 100 to the gas inlet of the body portion 200.

[0107] Figure 12 is a cross-sectional structural schematic view of the joint assembly of the hair care appliance according to an embodiment of the present disclosure (longitudinal alignment state). Figure 13 is a structural schematic view of the sealing cover plate 340 of the hair care appliance according to an embodiment of the present disclosure. Figure 14is a sectional structural schematic view of a joint assembly of a hair care appliance according to an embodiment of the present disclosure (relative bending state). Figure 15 and Figure 16 is a structural schematic view of different angles of a handle joint of a hair care appliance according to an embodiment of the present disclosure.

[0108] As shown in Figures 6 to 16 , the handle joint 310 of the present disclosure comprises a first joint component 311 and a second joint component 312, which are fixedly connected through a connecting assembly 313 and are relatively stationary. That is, the handle joint 310 of the present disclosure is not integrally formed, but is formed as separate components and prepared by assembling these separate components together.

[0109] In a preferred embodiment, the first joint component 311 and the second joint component 312 are formed in a substantially symmetrical structure and are symmetrically arranged on both sides of the main body joint 320.

[0110] As shown in Figure 15 and Figure 16 , the first joint component 311 of the present disclosure comprises a first base 311A and a first ring component 311B connected to the first base 311A. Similarly, the second joint component 312 comprises a second base 312A and a second ring component 312B connected to the second base 312A. Accordingly, the first base 311A of the first joint component 311 and the second base 312A of the second joint component 312 can jointly form a gas inlet of the joint assembly 300, which can be connected and communicated with the gas outlet of the handle portion 100, so that the gas flowing in the handle portion 100 can enter the joint assembly 300. That is, the first base 311A and the second base 312A of the present disclosure can be fixed to the handle portion 100.

[0111] Moreover, the first joint component 311 further comprises a first blocking portion 311C connected to the first base portion 311A and located near the longitudinal axis. Similarly, the second joint component 312 further comprises a second blocking portion 312C connected to the second base portion 312A and also located near the longitudinal axis. Thus, when the first joint component 311 and the second joint component 312 are assembled together, the first blocking portion 311C and the second blocking portion 312C can abut each other and together block the gas flowing along the longitudinal axis and make the gas flow to both sides of the first blocking portion 311C and the second blocking portion 312C, and accordingly, the flowing gas will be divided into a first branch and a second branch. The gas flowing in the first branch will flow into the inner space of the first ring component 311B, and the gas flowing in the second branch will flow into the inner space of the second ring component 312B.

[0112] The flow guide 330 is located in the first ring component 311B. Specifically, the flow guide 330 of the present disclosure can be two, one flow guide 330 is located in the first ring component 311B, and the other flow guide 330 is located in the second ring component 312B, so that the gas in the first ring component 311B and the second ring component 312B can be guided by the flow guide 330. In a specific embodiment, the flow guide can be integrally formed with the first joint component 311, and the flow guide can also be integrally formed with the second joint component 312.

[0113] As shown in Figure 12 The flow guide 330 of the present disclosure comprises a flow guide plate, the flow guide plate comprises a curved surface, the curved surface comprises an outer side and an inner side relative to the longitudinal axis of the handle portion 100, and when the gas flows, the gas is introduced to the gas inlet of the main body portion 200 from at least one side of the gas outlet of the handle portion 100 via the outer side and / or the inner side. In a preferred embodiment, the recess of the curved surface of the flow guide plate faces the longitudinal axis, so that the gas can flow through the surface of the curved surface and be effectively guided.

[0114] Referring again to Figure 2The first ring component 311B of the present disclosure comprises a first end in the axial direction and a second end corresponding to the first end; wherein the first end of the first ring component 311B is formed with a first annular protrusion 311D, the size (e.g. outer diameter) of the first annular protrusion 311D is smaller than the size (e.g. outer diameter) of the first ring component 311B, and the first annular protrusion 311D has the same central axis as the first ring component 311B, which is the aforementioned pivot shaft. In a preferred embodiment, the outer peripheral surface of the first annular protrusion 311D is provided with a first limiting component 311E, which can be a protruding part, and the first limiting component 311E can be provided with two, which are evenly distributed along the outer peripheral surface of the first annular protrusion 311D. Of course, the number of the first limiting component 311E can also be set to other values.

[0115] Similarly, the second ring component 312B of the present disclosure comprises a first end in the axial direction and a second end corresponding to the first end; wherein the first end of the second ring component 312B is formed with a second annular protrusion 312D, the size (e.g. outer diameter) of the second annular protrusion 312D is smaller than the size (e.g. outer diameter) of the second ring component 312B, and the second annular protrusion 312D has the same central axis as the second ring component 312B, which is the aforementioned pivot shaft. In a preferred embodiment, the outer peripheral surface of the second annular protrusion 312D is provided with a second limiting component 312E, which can be a protruding part, and the second limiting component 312E can be provided with two, which are evenly distributed along the outer peripheral surface of the second annular protrusion 312D. Of course, the number of the second limiting component 312E can also be set to other values.

[0116] In the present disclosure, the joint assembly 300 comprises a sealing cover plate 340, which is arranged outside the first ring component 311B of the handle joint 310. In other words, the sealing cover plate 340 of the present disclosure can be provided with two, one sealing cover plate 340 is arranged at the second end of the first ring component 311B, and the other sealing cover plate 340 is arranged at the second end of the second ring component 312B. In this way, through the arrangement of the sealing cover plate 340, gas will not leak outward from the handle joint 310.

[0117] Referring again to Figure 12 In the present disclosure, the inner side of the sealing cover plate 340 is provided with a flow guide part 341, which is arranged close to the flow guide 330, and the flow guide part 341 cooperates with the flow guide 330 to form a flow guide air duct towards the gas inlet of the main body part 200.

[0118] Specifically, the flow guide portion 341 can be arranged in the handle joint 310, for example, the flow guide portion 341 can be arranged in the first ring member 311B of the handle joint 310. And the flow guide surface of the flow guide portion 341 is arranged obliquely, so that the flow guide portion 341 has substantially the same interval with the outer side of the flow guide 330.

[0119] In a preferred embodiment, the flow guide 330 is arranged to be inclined in the direction close to the longitudinal axis in the direction from bottom to top (i.e. in the direction of the flow of the gas), and similarly, the flow guide surface of the flow guide portion 341 is also inclined in the direction close to the longitudinal axis in the direction from bottom to top (i.e. in the direction of the flow of the gas).

[0120] The main joint 320 of the present disclosure can be integrally formed. For example, the main joint 320 can be integrally injection molded by plastic material. At the same time, as shown in Figure 10 The main joint 320 of the present disclosure can include a main base 321 and a main ring member 322; wherein the main base 321 can form a gas outlet of the joint assembly 300, which can be connected and communicated with the gas inlet of the main body 200, so that the gas flowing in the joint assembly 300 can enter the main body 200. That is, the main joint 320 of the present disclosure can be fixed on the main body 200.

[0121] In the present disclosure, the first ring member 311B and the main ring member 322 are rotatably connected. Similarly, the second ring member 312B is also rotatably connected with the main ring member 322.

[0122] Specifically, referring to Figure 10 , the main ring member 322 of the present disclosure includes a first end and a second end in the axial direction, and an inner flange is formed at both the first end and the second end in the axial direction, and a limiting structure 322A is arranged on the inner flange. In a preferred embodiment, the limiting structure 322A can be a limiting groove, and the number of the limiting grooves is arranged to be four, which are uniformly distributed along the circumference of the inner flange.

[0123] When the handle joint 310 and the main joint 320 are assembled together, the first annular protrusion 311D is rotatably arranged in the inner flange of the first end of the main ring member 322; similarly, the second annular protrusion 312D is rotatably arranged in the inner flange of the second end of the main ring member 322; and the first limiting member 311E and the second limiting member 312E can cooperate with the limiting grooves, and the handle joint 310 and the main joint 320 are kept in a fixed posture at a first angle.

[0124] Based on the above structure, the handle joint 310 and the body joint 320 of the hair care appliance of the present disclosure can be rotatably fixed to each other, which means that when the first limiting component 311E and / or the second limiting component 312E is located in the limiting groove, the handle joint 310 and the body joint 320 are fixed at a first angle; in addition, when the handle joint 310 is fixed and a force is applied to the body joint 320, and the force is greater than a preset value to enable the first limiting component 311E and / or the second limiting component 312E to be removed from the limiting groove, the handle joint 310 and the body joint 320 can be rotated relative to each other until the first limiting component 311E and / or the second limiting component 312E reenters the limiting groove, at which time the handle joint 310 and the body joint 320 can be fixed to each other.

[0125] In the present disclosure, the number of limiting grooves is not limited to this, and it can also be set to 6 or 8 or the like, so that the body part 200 of the hair care appliance of the present disclosure can be kept at multiple positions relative to the handle part 100 when in use, thereby facilitating the use of the user.

[0126] The connecting assembly 313 of the present disclosure is arranged in a direction parallel to the pivot axis of the joint assembly 300. Thus, the first joint component 311 and the second joint component 312 of the present disclosure can be conveniently inserted and connected, thereby facilitating the assembly of the hair care appliance.

[0127] Referring again to Figure 1 and Figure 4 , in the present disclosure, when the first angle is 0°, there is a first cross section 350 between the outer surfaces of the body joint 320 and the handle joint 310; when the first angle is 90°, there is a second cross section 360 between the outer surfaces of the body joint 320 and the handle joint 310, and the maximum depth of the first cross section 350 is greater than or equal to the maximum depth of the second cross section 360, so that the hair care appliance of the present disclosure can be conveniently bent and kept in a bent state; and the hair care appliance after bending has a more beautiful shape.

[0128] The hair care appliance of the present disclosure can work in a straight state and a bent state when in use to achieve multi-angle use. When the user uses the hair care appliance to blow the hair, the body part 200 can be bent relative to the handle part 100 at 90° or other suitable angles with the handle part 100. When the user uses the hair care appliance to make a curling hairstyle, the body part 200 can be coaxially straight with the handle part 100 to facilitate the operation of curling. Of course, it is also possible for the user to use the hair care appliance in a straight state to blow the hair, and to use the hair care appliance in a bent state to curl the hair, as long as the user feels comfortable with the angle.

[0129] In the description of the specification, the description of the terms "one embodiment / way", "some embodiments / ways", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment / way or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments / ways or examples. In addition, the person skilled in the art can combine and combine the different embodiments / ways or examples described in the specification and the features of the different embodiments / ways or examples, without contradiction.

[0130] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0131] The person skilled in the art should understand that the above-mentioned embodiments are only for clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. Based on the above disclosure, other changes or modifications can also be made by those skilled in the art, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A joint assembly for a hair care appliance, the hair care appliance comprising a body portion and a handle portion, characterised in that, Comprise: a handle joint; a body joint, the body joint interworking with the handle joint and being rotatably fixed with each other, so that the body part can be kept in a fixed posture at a first angle relative to the handle part; wherein the handle joint is connected with the handle part of the hair care appliance and keeps gas communication, the body joint is connected with the body part of the hair care appliance and keeps gas communication, and the gas communication from the handle part to the body part can be kept through the joint assembly.

2. The joint assembly of claim 1, wherein, The first angle is greater than or equal to 85° and less than or equal to 180°.

3. The joint assembly of claim 2, wherein, When the first angle is 180°, a first section exists between the outer surfaces of the body joint and the handle joint; when the first angle is 90°, a second section exists between the outer surfaces of the body joint and the handle joint, and the maximum depth of the first section is greater than or equal to the maximum depth of the second section.

4. The fitting assembly of claim 1, wherein, The body part and the handle part are both cylindrical and have substantially equal outer diameters; the joint assembly has a transverse width, which is less than or equal to the outer diameter.

5. The fitting assembly of claim 1, wherein, Further comprising a flow guide, which is arranged to be constant relative to the position of the handle joint.

6. The joint assembly of claim 5, wherein, The handle part has a longitudinal axis, and the flow guide extends in a direction inclined to the longitudinal axis.

7. The joint assembly of claim 6, wherein, The flow guide is inclined to the longitudinal axis along the gas flow direction in the gas flow path.

8. The joint assembly of claim 5, wherein, The flow guide is configured to guide the gas to the gas inlet of the body part through at least one side of the gas outlet of the handle part.

9. The joint assembly of claim 5, wherein, The flow guide is two, and the flow guide is configured to guide the gas to the gas inlet of the body part through both sides of the gas outlet of the handle part.

10. The joint assembly of claim 9, wherein, The flow guide comprises a flow guide plate, and the flow guide plate comprises a curved surface, which comprises an outer side and an inner side relative to the longitudinal axis of the handle part, and the gas is guided to the gas inlet of the body part from at least one side of the gas outlet of the handle part through the outer side and / or inner side when the gas flows.

11. The joint assembly of claim 9, wherein, The flow guide is formed in the handle joint.

12. The joint assembly of claim 11, wherein, The handle joint comprises a first joint part and a second joint part, the first joint part and the second joint part are fixedly connected through a connecting assembly and are relatively stationary.

13. The joint assembly of claim 12, wherein, The connecting assembly is arranged in a direction parallel to the pivot axis of the joint assembly.

14. The fitting assembly of claim 12, wherein, The first joint part comprises a first base and a first ring part connected with the first base; one flow guide is arranged in the first ring part; the second joint part comprises a second base and a second ring part connected with the second base; another flow guide is arranged in the second ring part.

15. The joint assembly of claim 14, wherein, The first joint part further comprises a first shielding part connected with the first base; the second joint part further comprises a second shielding part connected with the second base, and when the first joint part and the second joint part are assembled, the first shielding part and the second shielding part are in contact with each other and are used together to block the gas flowing in the direction of the longitudinal axis and make the gas flow to both sides of the first shielding part and the second shielding part in the transverse direction.

16. The joint assembly of claim 15, wherein, The first ring component comprises a first end and a second end corresponding to the first end in the axial direction; wherein the first end of the first ring component is formed with a first annular protrusion, the size of the first annular protrusion is smaller than that of the first ring component, and the first annular protrusion has the same central axis as the first ring component; the outer circumferential surface of the first annular protrusion is provided with a first limiting component; the second ring component comprises a first end and a second end corresponding to the first end in the axial direction; wherein the first end of the second ring component is formed with a second annular protrusion, the size of the second annular protrusion is smaller than that of the second ring component, and the second annular protrusion has the same central axis as the second ring component, the outer circumferential surface of the second annular protrusion is provided with a second limiting component.

17. The joint assembly of claim 16, wherein, The joint assembly comprises a sealing cover plate, one sealing cover plate is arranged on the second end of the first ring component of the handle joint; another sealing cover plate is arranged on the second end of the second ring component.

18. The joint assembly of claim 17, wherein, The inner side of the sealing cover plate is provided with a flow guide part, the flow guide part is arranged close to the flow guide, and the flow guide part cooperates with the flow guide to form a flow guide air duct towards the gas inlet of the main body part.

19. The joint assembly of claim 16, wherein, The main body joint comprises a main body base and a main body ring component connected with the main body base; the first ring component and the main body ring component are rotatably connected; the second ring component and the main body ring component are rotatably connected.

20. The joint assembly of claim 19, wherein, The main body ring component comprises a first end and a second end in the axial direction, and an inner flange is formed on each of the first end and the second end, and a limiting structure is arranged on the inner flange; after the handle joint and the main body joint are assembled, the first annular protrusion is rotatably arranged in the inner flange of the first end of the main body ring component; the second annular protrusion is rotatably arranged in the inner flange of the second end of the main body ring component; and the first limiting component and the second limiting component can cooperate with the limiting groove, and the handle joint and the main body joint are kept in a fixed posture at a first angle.

21. A hair care appliance characterized in that, The joint assembly comprises a sealing cover plate, one sealing cover plate is arranged on the second end of the first ring component of the handle joint; another sealing cover plate is arranged on the second end of the second ring component. The inner side of the sealing cover plate is provided with a flow guide part, the flow guide part is arranged close to the flow guide, and the flow guide part cooperates with the flow guide to form a flow guide air duct towards the gas inlet of the main body part. The main body joint comprises a main body base and a main body ring component connected with the main body base; the first ring component and the main body ring component are rotatably connected; the second ring component and the main body ring component are rotatably connected. The main body ring component comprises a first end and a second end in the axial direction, and an inner flange is formed on each of the first end and the second end, and a limiting structure is arranged on the inner flange; after the handle joint and the main body joint are assembled, the first annular protrusion is rotatably arranged in the inner flange of the first end of the main body ring component; the second annular protrusion is rotatably arranged in the inner flange of the second end of the main body ring component; and the first limiting component and the second limiting component can cooperate with the limiting groove, and the handle joint and the main body joint are kept in a fixed posture at a first angle. The joint assembly comprises a sealing cover plate, one sealing cover plate is arranged on the second end of the first ring component of the handle joint; another sealing cover plate is arranged on the second end of the second ring component. The inner side of the sealing cover plate is provided with a flow guide part, the flow guide part is arranged close to the flow guide, and the flow guide part cooperates with the flow guide to form a flow guide air duct towards the gas inlet of the main body part. The main body joint comprises a main body base and a main body ring component connected with the main body base; the first ring component and the main body ring component are rotatably connected; the second ring component and the main body ring component are rotatably connected. The main body ring component comprises a first end and a second end in the axial direction, and an inner flange is formed on each of the first end and the second end, and a limiting structure is arranged on the inner flange; after the handle joint and the main body joint are assembled, the first annular protrusion is rotatably arranged in the inner flange of the first end of the main body ring component; the second annular protrusion is rotatably arranged in the inner flange of the second end of the main body ring component; and the first limiting component and the second limiting component can cooperate with the limiting groove, and the handle joint and the main body joint are kept in a fixed posture at a first angle.

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