Hair care device

Abstract

The utility model discloses hair care equipment which comprises a main body and an accessory capable of rotating relative to the main body, a limiting block is arranged on one of the main body and the accessory, a limiting groove is formed in the other one of the main body and the accessory, and the limiting groove comprises an insertion end allowing the limiting block to enter the limiting groove in the first direction and a limiting part extending in the rotating direction of the accessory; one of the main body and the accessory is further provided with an elastic piece, the other one of the main body and the accessory is further provided with a first clamping groove, the elastic piece can elastically deform when the accessory rotates relative to the main body so as to be clamped into or separated from the first clamping groove, and when the elastic piece is clamped into the first clamping groove, at least part of the limiting block is located in the limiting part; wherein the first direction is parallel to the extension direction of the rotation axis of the accessory. According to the hair care equipment provided by the utility model, the accessory is convenient and quick to mount and dismount, and the accessory can be reliably connected to the main body.

Description

Technical Field

[0001] This utility model relates to the field of nursing equipment technology, specifically to a hair care device. Background Technology

[0002] Hair care devices can be used to dry and style hair. For example, users can use hair care devices to blow-dry wet hair and style it during the drying process.

[0003] Existing hair care devices have the following problems: 1. The main body and accessories are connected by a hook structure, which is not secure enough, and the accessories may fall off during use. 2. The connecting components are fixed to the outer shell with multiple screws and glue. Installing the connecting components to the outer shell is time-consuming and costly. In addition, the positioning structure between the connecting components and the outer shell occupies a lot of space, which limits the design of other structures in the hair care device. Utility Model Content

[0004] This utility model provides a hair care device, the purpose of which is to make the installation and disassembly of the main body and accessories of the hair care device convenient and quick, and to make the accessories reliably connected to the main body.

[0005] To achieve the above objectives, this utility model provides a hair care device, which includes a main body and an accessory rotatably disposed relative to the main body. One of the main body and the accessory is provided with a limiting block, and the other is provided with a limiting groove. The limiting groove includes an insertion end for the limiting block to enter in a first direction and a limiting part extending in the rotation direction of the accessory.

[0006] One of the main body and the accessory is provided with an elastic element, and the other is provided with a first slot. The elastic element can elastically deform when the accessory rotates relative to the main body to engage or disengage from the first slot. When the elastic element is engaged in the first slot, the limiting block is at least partially located within the limiting portion. The first direction is parallel to the extension direction of the rotation axis of the accessory.

[0007] When using hair care equipment, if an accessory needs to be connected to the main body, first allow the limiting block to enter the limiting groove, then rotate the accessory until the elastic element is engaged in the first slot. After the limiting block enters the limiting part of the limiting groove, the relative position of the main body and the accessory in the first direction is limited. When the elastic element is engaged in the first slot, the accessory cannot rotate relative to the main body. In this way, the accessory can be reliably connected to the main body. When it is necessary to remove the accessory from the main body, rotate the accessory in the opposite direction, and the accessory can be detached from the main body.

[0008] With the above-described design, users can quickly install and remove accessories without tools. Users can sense whether the accessories are properly installed, reducing the possibility of misoperation. Furthermore, the accessories maintain a stable connection under various usage scenarios when subjected to external forces such as vibration and impact, ensuring the normal operation of the hair care device. In addition, when the hair care device has multiple accessories, the limiting blocks, limiting grooves, elastic components, and the first locking slot can be designed according to uniform specifications, allowing multiple accessories to be quickly connected to the main body. This improves the versatility and compatibility of the hair care device, allowing users to select different accessories as needed to expand the functionality of the hair treatment device and meet diverse usage requirements.

[0009] As a further improvement of this utility model, the limiting groove includes a connecting portion that connects the insertion end and the limiting portion. In the rotation direction of the accessory, the limiting portion is located on one side of the connecting portion, and the extending direction of the connecting portion is perpendicular to the extending direction of the limiting portion.

[0010] When the accessory is connected to the main body, the accessory first moves along the first direction, allowing the limiting block to enter the connecting part from the insertion end. Then, the accessory is rotated so that at least part of the limiting block enters the limiting part. The extension direction of the connecting part is set perpendicular to the extension direction of the limiting part, ensuring that the accessory maintains a stable connection even under complex usage environments (such as vibration, movement, or tilting), thereby guaranteeing the reliability of the connection between the accessory and the main body.

[0011] As a further improvement of this utility model, the elastic element is disposed on the main body, the first slot is disposed on the accessory, and the accessory is also provided with a second slot. The second slot and the first slot are spaced apart along the rotation direction of the accessory. During the process of the accessory rotating relative to the main body, the elastic element can be engaged or disengaged from the second slot. When the elastic element is located in the second slot, the limiting block is located in the communicating portion.

[0012] When the accessory is connected to the main body by rotating it, the elastic element first engages in the second slot, then disengages from the second slot and engages in the first slot. As the elastic element moves with the accessory, disengaging from the second slot and engaging in the first slot, the user will feel a noticeable jolt when rotating the accessory due to the cooperation between the elastic element and the slot. This allows the user to clearly perceive the positional changes of the accessory, enhancing the feel of operation and the user experience.

[0013] As a further improvement of this utility model, the elastic element abuts against the accessory along the first direction. During the rotation of the accessory relative to the main body, the elastic element deforms along the first direction to engage or disengage from the first slot or the second slot.

[0014] The elastic element elastically abuts against the attachment in the first direction, which can keep the relative position of the main body and the attachment stable in the first direction, prevent the attachment from shaking, and also reduce the dimensional accuracy of the limiting part in the first direction.

[0015] As a further improvement of this utility model, the main body is provided with an insertion hole, and the accessory is provided with a first insertion part for inserting into the insertion hole along a first direction. The diameter of the insertion hole matches the outer diameter of the first insertion part. The limiting groove is opened on the outer peripheral surface of the first insertion part. The main body includes a hole sidewall surrounding the insertion hole, and the limiting block is connected to the hole sidewall.

[0016] When the first insertion part is inserted into the first insertion hole, the accessory can stably rotate relative to the main body along a preset trajectory, reducing shaking and offset, and improving the stability of the connection. In this way, together with the limiting groove on the outer peripheral surface of the first insertion part and the limiting block on the side wall of the hole, the connection reliability between the accessory and the main body is further enhanced.

[0017] As a further improvement of this utility model, the main body includes a shell and a connecting component connecting the shell and the accessory. One of the shell and the connecting component is provided with a first bayonet, and the other is provided with a first locking block. In a first direction, the size of the first locking block matches the size of the first bayonet. When the connecting component rotates relative to the shell, the first locking block can enter or disengage from the first bayonet.

[0018] When the connecting component needs to be installed onto the housing, rotating the connecting component allows the first locking block to enter the first locking slot, thus defining the relative position of the connecting component and the housing in the first direction. Compared to existing methods that use screws and glue for fixing, the above solution utilizes a mechanical connection between the first locking slot and the first locking block, resulting in a more stable structure, improved structural strength, reduced material usage, lower production costs, and eliminated the need for glue settling time, thus improving production efficiency. It also avoids product quality issues caused by glue aging and decreased adhesion, and reduces the risk of accessories loosening or falling off.

[0019] As a further improvement of this utility model, the hair care device further includes a first locking structure for restricting the rotation of the connecting component relative to the housing. The first locking structure includes a first locking part and a second locking part respectively disposed on the housing and the connecting component. When the first locking part and the second locking part cooperate, at least a portion of the first locking block is located in the first locking slot.

[0020] When at least part of the first locking block is located within the first locking slot, the relative position of the connecting component and the outer shell in the first direction is defined. Furthermore, through the cooperation of the first locking part and the second locking part, the connecting component cannot rotate relative to the outer shell. Thus, the relative position between the connecting component and the outer shell can be effectively defined.

[0021] As a further improvement of this utility model, the first locking part is an inner circumferential surface located inside the outer shell, and the shape formed by the inner circumferential surface is non-circular. The second locking part is a second insertion part on the connecting assembly that cooperates with the inner circumferential surface.

[0022] The inner circumferential surface extends along a non-circular trajectory. The second insertion part mates with the inner circumferential surface, and its outer circumferential shape is also non-circular. When the second insertion part is inserted into the outer shell and mates with the inner circumferential surface, the second insertion part cannot rotate relative to the outer shell, and thus the entire connecting assembly cannot rotate relative to the outer shell.

[0023] As a further improvement of this utility model, the connecting assembly includes an end cap connected to the housing and a ventilation cylinder connected to the end cap. One of the end cap and the ventilation cylinder is provided with a second latch, and the other is provided with a second latch. In a first direction, the size of the second latch matches the size of the second latch, and when the ventilation cylinder rotates relative to the end cap, the second latch can enter or disengage from the second latch.

[0024] When the ventilation tube needs to be installed on the end cover, rotate the ventilation tube so that the second locking block enters the second locking slot, and the relative position of the ventilation tube and the end cover in the first direction is defined.

[0025] As a further improvement of this utility model, the hair care device further includes a second locking structure for restricting the rotation of the ventilation tube relative to the end cap. The second locking structure includes a third locking part and a fourth locking part respectively disposed on the end cap and the ventilation tube. When the third locking part and the fourth locking part cooperate, at least a portion of the second locking block is located in the second locking slot.

[0026] When at least part of the second locking block is located within the second locking slot, the relative position of the ventilation cylinder and the end cover in the first direction is limited. Furthermore, through the cooperation of the third locking part and the fourth locking part, the ventilation cylinder cannot rotate relative to the end cover. Thus, the relative position of the ventilation cylinder and the end cover can be effectively limited.

[0027] In the hair care device provided by this utility model, users can quickly install and disassemble accessories without tools. Users can sense whether the accessories are properly installed, reducing the possibility of misoperation. Furthermore, the accessories maintain a stable connection under various usage scenarios when subjected to external forces such as vibration and impact, ensuring the normal operation of the hair care device. In addition, when the hair care device has multiple accessories, the limiting block, limiting groove, elastic element, and first locking slot can be designed according to uniform specifications, allowing multiple accessories to be quickly connected and separated from the main body. This improves the versatility and compatibility of the hair care device, allowing users to select different accessories as needed to expand the functionality of the hair care device and meet diverse usage requirements. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a hair care device provided in an embodiment of the present invention;

[0029] Figure 2 This is an exploded view of a hair care device provided in an embodiment of the present invention;

[0030] Figure 3 for Figure 2 A structural diagram of the appendix;

[0031] Figure 4 for Figure 2 A front view of part of the structure of the appendix;

[0032] Figure 5 for Figure 2 Structural diagrams of some of the attachments and main body;

[0033] Figure 6 for Figure 5 A magnified diagram of point A in the middle;

[0034] Figure 7 for Figure 2 Schematic diagram of the middle end cap;

[0035] Figure 8 for Figure 2 A schematic diagram of part of the outer shell structure;

[0036] Figure 9 for Figure 2 A schematic diagram of the structure of the connecting component;

[0037] Figure 10 for Figure 9 Schematic diagram of the middle end cap;

[0038] Figure 11 for Figure 9 A schematic diagram of the structure of the central ventilation duct. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any modifications to the mechanism, method, or function made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0040] The terms used herein, such as "up," "down," "left," "right," "front," and "back," indicating spatial relative position, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims. Furthermore, the descriptive term "horizontal" used herein is not entirely equivalent to being perpendicular to the direction of gravity, and allows for a certain angle of inclination.

[0041] like Figure 1 As shown, one embodiment of the present invention provides a hair care device 100, which includes a main body 10 and an accessory 20 connected to the main body 10.

[0042] The hair care device 100 is used for functions such as drying and styling hair. Its main body 10 can be designed to provide airflow to attachments 20. Multiple attachments 20 can be provided, and each attachment 20 has a different structure to achieve a different function. For example, an attachment 20 with a curling function, when connected to the main body 10, can curl and style the hair. An anti-flippage attachment 20, when connected to the main body 10, can style the hair to prevent it from flipping. The hair can be real hair, wigs, animal hair, etc.

[0043] Annex 20 is rotatably mounted relative to the main body 10, and is connected to or separated from the main body 10 by rotation. Specifically, continuing with... Figure 2-8 As shown, one of the main body 10 and the accessory 20 is provided with a limiting block 30, and the other is provided with a limiting groove 40. The limiting groove 40 includes an insertion end 41 for the limiting block 30 to enter in a first direction and a limiting part 42 extending in the rotation direction of the accessory 20. One of the main body 10 and the accessory 20 is also provided with an elastic member 50, and the other is also provided with a first locking groove 61. The elastic member 50 can elastically deform during the rotation of the accessory 20 relative to the main body 10 to engage or disengage from the first locking groove 61. The first direction is parallel to the extension direction of the rotation axis of the accessory 20.

[0044] In this article, the first direction is as follows: Figure 1 As shown by the xx axis, the rotation direction of attachment 20 is as follows: Figure 1 As shown by the yy axis in the diagram.

[0045] During the use of the hair care device 100, when it is necessary to connect the accessory 20 to the main body 10, first, the limiting block 30 enters the limiting groove 40 through the insertion end 41. Then, the accessory 20 is rotated until the elastic element 50 is engaged in the first slot 61. At this time, at least a portion of the limiting block 30 also enters the limiting part 42 of the limiting groove 40, that is, at least a portion of the limiting block 30 is located within the limiting part 42. After at least a portion of the limiting block 30 enters the limiting part 42, the relative position of the main body 10 and the accessory 20 in the first direction is limited. When the elastic element 50 is engaged in the first slot 61, the user can perceive it, and at this time, the accessory 20 cannot rotate relative to the main body 10. Thus, the accessory 20 can be reliably connected to the main body 10. When it is necessary to remove the accessory 20 from the main body 10, the accessory 20 is rotated in the opposite direction, and the accessory 20 can be detached from the main body 10.

[0046] With the above configuration, users can quickly install and remove accessory 20 without tools. Users can feel whether accessory 20 is properly installed, reducing the possibility of misoperation. Furthermore, accessory 20 maintains a stable connection under various usage scenarios even when subjected to external forces such as vibration and impact, ensuring the normal operation of the hair care device 100. In addition, when the hair care device 100 has multiple accessories 20, the limiting block 30, limiting groove 40, elastic element 50, and first locking groove 61 can be designed according to uniform specifications, allowing multiple accessories 20 to be quickly connected and disconnected from the main body 10. This improves the versatility and compatibility of the hair care device 100, allowing users to select different accessories as needed to expand the functionality of the hair care device 100 and meet diverse usage requirements.

[0047] The limiting groove 40 includes a connecting portion 43 that connects the insertion end 41 and the limiting portion 42. In the rotation direction of the attachment 20, the limiting portion 42 is located on one side of the connecting portion 43. During the process of the attachment 20 being connected to the main body 10, the limiting block 30 first moves along the first direction and enters the connecting portion 43 through the insertion end 41. Then, as the attachment 20 rotates, the limiting block 30 will enter the limiting portion 42.

[0048] In this embodiment, the extending direction of the connecting portion 43 is perpendicular to the extending direction of the limiting portion 42, ensuring that the accessory 20 maintains a stable connection even under complex usage environments (such as vibration, movement, or tilting), thus guaranteeing the reliability of the connection between the accessory 20 and the main body 10. The extending direction of the connecting portion 43 should be parallel to the first direction.

[0049] In other embodiments of this utility model, the connecting portion 43 and the limiting portion 42 may also be arranged at an acute or obtuse angle. Alternatively, the limiting groove 40 may only include the limiting portion 42, which extends in an arc shape and is directly connected to the insertion end 41, allowing the limiting block 30 to directly enter the limiting portion 42 from the insertion end 41. With the above arrangement, the limiting block 30 and the limiting portion 42 cooperate to limit the relative position of the main body 10 and the accessory 20 in the first direction.

[0050] The number of limiting grooves 40 and limiting blocks 30 can be more than one. In this embodiment, there are three limiting grooves 40 and three limiting blocks 30. The three limiting grooves 40 and three limiting blocks 30 cooperate one by one to ensure the connection effect between the accessory 20 and the main body 10.

[0051] In this embodiment, the elastic element 50 is disposed on the main body 10, the first slot 61 is disposed on the attachment 20, and the attachment 20 is also provided with a second slot 62. The second slot 62 and the first slot 61 are spaced apart along the rotation direction of the attachment 20. During the rotation of the attachment 20 relative to the main body 10, the elastic element 50 can elastically deform to engage or disengage from the second slot 62. When the elastic element 50 is located in the second slot 62, the limiting block 30 is located in the connecting portion 43.

[0052] As described above, when the accessory 20 is connected to the main body 10, the limiting block 30 first enters the connecting portion 43, and then enters the limiting portion 42 as the accessory 20 rotates. When the elastic member 50 is located in the second slot 62, the limiting block 30 is located in the connecting portion 43. Then, when the accessory 20 is rotated, causing the limiting block 30 to move into the limiting portion 42, the elastic member 50 will disengage from the second slot 62 and engage with the first slot 61 as the accessory 20 rotates. When the elastic member 50 disengages from the second slot 62 and engages with the first slot 61 as the accessory 20 rotates, the user will feel a noticeable jolt when rotating the accessory 20 through the cooperation of the elastic member 50 and the slots. This allows the user to clearly perceive the change in the position of the accessory 20, enhancing the operating feel and user experience.

[0053] In this embodiment, the elastic element 50 abuts against the attachment 20 along the first direction. Under the elastic force of the elastic element 50, the relative position of the main body 10 and the attachment 20 can remain stable in the first direction, and the attachment 20 can avoid shaking. During the rotation of the attachment 20 relative to the main body 10, the elastic element 50 deforms along the first direction to engage or disengage from the first slot 61 or the second slot 62.

[0054] After the limiting block 30 enters the limiting part 42, it can limit the position of the accessory 20 and the main body 10 in the first direction. The size of the limiting block 30 in the first direction matches the size of the limiting part 42 in the first direction. Thus, when the limiting block 30 enters the limiting part 42, the two sidewalls of the accessory 20 located on both sides of the limiting part 42 in the first direction jointly restrict the movement of the limiting block 30 in the first direction. When the elastic member 50 elastically abuts against the accessory 20 in the first direction, under the action of the elastic member 50, the limiting block 30 can abut against the sidewall of the accessory 20 located on one side of the limiting part 42 in the first direction, without the need for the two sidewalls to jointly restrict the movement of the limiting block 30 in the first direction. Thus, the dimensional accuracy of the limiting part 42 in the first direction can be reduced.

[0055] It is conceivable that in other embodiments of this utility model, the elastic element 50 may be provided in the attachment 20, while the first slot 61 and the second slot 62 may be provided in the main body 10.

[0056] In this embodiment, the elastic element 50 is a spring sheet, which includes a protrusion 51 extending in an arc shape and protruding towards the attachment 20. The protrusion 51 is used to cooperate with the first slot 61 and the second slot 62 to restrict the rotation of the attachment 20 relative to the body 10. The arc-shaped protrusion 51 cooperates with the first slot 61 and the second slot 62, and during the rotation of the attachment 20 relative to the body 10, the protrusion 51 can easily disengage from the first slot 61 and the second slot 62.

[0057] The main body 10 is provided with an insertion hole 11, and the accessory 20 is provided with a first insertion part 21 for insertion into the insertion hole 11 along a first direction. The diameter of the insertion hole 11 matches the outer diameter of the first insertion part 21. Thus, when the first insertion part 21 is inserted into the first insertion hole 11, the accessory 20 can stably rotate relative to the main body 10 along a preset trajectory, reducing shaking and offset, and improving the stability of the connection.

[0058] In this embodiment, a limiting groove 40 is formed in the attachment 20, and a limiting block 30 is provided in the main body 10. Specifically, the limiting groove 40 is formed on the outer peripheral surface 211 of the first insertion part 21, and the main body 10 includes a hole sidewall 12 surrounding the insertion hole 11, and the limiting block 30 is connected to the hole sidewall 12. When the engagement of the insertion hole 11 and the first insertion part 21 allows the attachment 20 to rotate stably relative to the main body 10 along a preset trajectory, the engagement of the limiting groove 40 formed on the outer peripheral surface 211 and the limiting block 30 connected to the hole sidewall 12 further enhances the connection reliability between the attachment 20 and the main body 10.

[0059] It is conceivable that in other embodiments of this utility model, the positions of the limiting block 30 and the limiting groove 40 can also be interchanged, that is, the limiting groove 40 is opened on the side wall 12 of the hole forming the insertion hole 11 on the main body 10, while the limiting block 30 is connected to the outer peripheral surface 211 of the first insertion part 21.

[0060] In other embodiments of this utility model, the attachment 20 may be provided with an insertion hole 11, and the main body 10 may be provided with a first insertion part 21 for inserting the insertion along the first direction. In this case, the limiting block 30 is connected to the side wall of the hole forming the insertion hole 11 on the attachment 20.

[0061] like Figure 2 , 9 As shown in Figure 11, the main body 10 includes a housing 13 and a connecting assembly 14 that connects the housing 13 and the accessory 20. One of the housing 13 and the connecting assembly 14 is provided with a first latch 131, and the other is provided with a first latch block 1401. In a first direction, the size of the first latch block 1401 matches the size of the first latch 131. When at least a portion of the first latch block 1401 is located within the first latch 131, the relative position of the connecting assembly 14 and the housing 13 in the first direction is defined.

[0062] In this embodiment, the outer shell 13 is provided with a first bayonet 131, and the connecting component 14 is provided with a first locking block 1401. In other embodiments of this utility model, the connecting component 14 may be provided with a first bayonet 131, and the outer shell 13 may be provided with a first locking block 1401.

[0063] The connecting component 14 is rotatably connected to the housing 13. When the connecting component 14 rotates relative to the housing 13, the first locking block 1401 can enter the first bayonet 131, thereby connecting the connecting component 14 and the housing 13. Of course, when the connecting component 14 rotates relative to the housing 13, the first locking block 1401 can also disengage from the first bayonet 131.

[0064] In the above solution, when the connecting component 14 needs to be installed onto the housing 13, the connecting component 14 is rotated so that the first locking block 1401 enters the first locking slot 131, thereby defining the relative position of the connecting component 14 and the housing 13 in the first direction. Compared with the existing method of fixing with screws and glue, the above solution uses a mechanical connection between the first locking slot 131 and the first locking block 1401, which is more stable, improves the structural strength of the equipment, reduces material usage, lowers production costs, eliminates the need for glue settling time, improves production efficiency, and avoids product quality issues caused by glue aging and decreased adhesion, reducing the risk of the accessory 20 loosening or falling off.

[0065] The hair care device 100 also includes a first locking structure for limiting the rotation of the connecting component 14 relative to the housing 13. After the first locking block 1401 and the first locking slot 131 cooperate to limit the relative position of the connecting component 14 and the housing 13 in a first direction, the first locking structure further limits the rotation of the connecting component 14 relative to the housing 13, and the relative position between the connecting component 14 and the housing 13 can be effectively limited.

[0066] The first locking structure includes a first locking part 71 and a second locking part 72 respectively disposed on the outer shell 13 and the connecting assembly 14. When the first locking part 71 and the second locking part 72 are engaged, at least a portion of the first locking block 1401 is located in the first locking slot 131.

[0067] When at least part of the first locking block 1401 is located within the first locking slot 131, the relative position of the connecting component 14 and the outer shell 13 in the first direction is limited. Based on this, the connecting component 14 cannot rotate relative to the outer shell 13 due to the cooperation of the first locking part 71 and the second locking part 72. Thus, the relative position between the connecting component 14 and the outer shell 13 can be effectively limited.

[0068] More than one first locking block 1401 and one first locking slot 131 can be provided to ensure the connection effect between the connecting component 14 and the outer shell 13. In this embodiment, three first locking blocks 1401 and three first locking slots 131 are provided. The three first locking blocks 1401 are evenly distributed around the connecting component 14, and the three first locking slots 131 are evenly distributed around the outer shell 13.

[0069] The outer casing 13 is also provided with a first stop surface 132, which is located on one side of at least one first latch 131 in the rotation direction of the connecting assembly 14. During the process of the connecting assembly 14 rotating relative to the outer casing 13 to allow the first latch 1401 to enter the first latch 131, when at least one first latch 1401 contacts the first stop surface 132, the first locking part 71 and the second locking part 72 can cooperate.

[0070] With the above configuration, when at least one first locking block 1401 contacts the first stop surface 132 during the rotation of the connecting component 14 relative to the housing 13, it indicates that the connecting component 14 has rotated to the preset position. At this time, the first locking part 71 and the second locking part 72 can match, preventing the connecting component 14 from continuing to rotate, thereby limiting the relative position between the connecting component 14 and the housing 13.

[0071] In this embodiment, the first locking part 71 is the inner peripheral surface 73 located inside the outer casing 13, and the shape formed by the inner peripheral surface 73 is not perfectly circular. The second locking part 72 is the second insertion part 74 on the connecting assembly 14 that mates with the inner peripheral surface 73. Since the shape formed by the inner peripheral surface 73 is not perfectly circular, the shape of the second insertion part 74, which mates with the inner peripheral surface 73, is also naturally not perfectly circular. When the second insertion part 74 is inserted into the outer casing 13 and mates with the inner peripheral surface 73, the second insertion part 74 cannot rotate relative to the outer casing 13, and thus the entire connecting assembly 14 cannot rotate relative to the outer casing 13.

[0072] To limit the position of the connecting component 14 and prevent it from rotating relative to the housing 13, other structures may be provided between the connecting component 14 and the housing 13. For example, the first locking structure may also include an anti-rotation groove 1402 on the connecting component 14 and an anti-rotation strip 133 on the housing 13 that cooperates with the anti-rotation groove 1402. The anti-rotation groove 1402 and the anti-rotation strip 133 are arranged around the first direction and both extend along a non-circular trajectory. When the anti-rotation strip 133 is inserted into the anti-rotation groove 1402, the connecting component 14 cannot rotate relative to the housing 13.

[0073] The connecting assembly 14 includes an end cap 141 connected to the housing 13 and a ventilation tube 142 connected to the end cap 141. The ventilation tube 142 and the end cap 141 are hollow and are connected in a first direction. The ventilation tube 142 is inserted into the end cap 141. One of the end cap 141 and the ventilation tube 142 is provided with a second latch 1411, and the other is provided with a second latch 1421. In the first direction, the size of the second latch 1421 matches the size of the second latch 1411. When at least part of the second latch 1421 is located in the second latch 1411, the position of the end cap 141 and the ventilation tube 142 in the first direction is defined.

[0074] In this embodiment, the end cap 141 is provided with a second latch 1411, the ventilation tube 142 is provided with a second latch 1421, and the aforementioned first latch 1401 is also provided on the ventilation tube 142. In other embodiments of this utility model, the ventilation tube 142 may be provided with a second latch 1411, and the end cap 141 may be provided with a second latch 1421.

[0075] The ventilation duct 142 is rotatably connected to the end cover 141. When the ventilation duct 142 rotates relative to the end cover 141, the second locking block 1421 can enter the second locking slot 1411, thereby connecting the ventilation duct 142 and the end cover 141. Of course, when the ventilation duct 142 rotates relative to the end cover 141, the second locking block 1421 can also disengage from the second locking slot 1411.

[0076] In the above scheme, when the ventilation cylinder 142 needs to be installed on the end cover 141, the ventilation cylinder 142 is rotated so that the second locking block 1421 enters the second locking slot 1411, and the relative position of the ventilation cylinder 142 and the end cover 141 in the first direction is defined.

[0077] The hair care device 100 also includes a second locking structure for restricting the rotation of the ventilation tube 142 relative to the end cap 141. After the second latch 1421 and the second latch 1411 cooperate to define the relative position of the ventilation tube 142 and the end cap 141 in the first direction, the second locking structure further restricts the rotation of the ventilation tube 142 relative to the end cap 141, thus effectively limiting the relative position between the ventilation tube 142 and the end cap 141.

[0078] The second locking structure includes a third locking part 81 and a fourth locking part 82 respectively disposed on the end cap 141 and the ventilation cylinder 142. When the third locking part 81 and the fourth locking part 82 are engaged, at least a portion of the second locking block 1421 is located within the second locking slot 1411. When at least a portion of the second locking block 1421 is located within the second locking slot 1411, the relative position of the ventilation cylinder 142 and the end cap 141 in the first direction is limited. Based on this, when the third locking part 81 and the fourth locking part 82 are engaged, the ventilation cylinder 142 cannot rotate relative to the end cap 141. Thus, the relative position of the ventilation cylinder 142 and the end cap 141 can be effectively limited.

[0079] Similar to the first locking block 1401 and the first locking slot 131 described above, more than one second locking block 1421 and second locking slot 1411 can be provided to ensure the connection effect between the ventilation cylinder 142 and the end cap 141. In this embodiment, two second locking blocks 1421 and two locking slots 1411 are provided.

[0080] The end cap 141 is provided with an annular limiting surface 1413 that matches the outer peripheral surface of the ventilation tube 142. When the ventilation tube 142 is inserted into the limiting surface 1413, the limiting surface 1413 can limit the position of the ventilation tube 142, preventing it from moving relative to the end cap 141 in the radial direction of the limiting surface 1413, thereby making the connection between the ventilation tube 142 and the end cap 141 more reliable.

[0081] The end cap 141 is also provided with a second stop surface 1412, which is located on one side of at least one second latch 1411 in the rotation direction of the ventilation cylinder 142. During the rotation of the ventilation cylinder 142 relative to the end cap 141 to allow the second latch 1421 to enter the second latch 1411, the third locking part 81 and the fourth locking part 82 can cooperate when at least one second latch 1421 contacts the second stop surface 1412.

[0082] With the above configuration, during the rotation of the ventilation cylinder 142 relative to the end cover 141, when at least one second locking block 1421 contacts the second stop surface 1412, it indicates that the ventilation cylinder 142 has rotated to the preset position. At this time, the third locking part 81 and the fourth locking part 82 can cooperate to prevent the ventilation cylinder 142 from continuing to rotate, thereby limiting the relative position between the ventilation cylinder 142 and the end cover 141.

[0083] In this embodiment, the third locking part 81 is a threaded hole 83 opened in the end cap 141, and the fourth locking part 82 is a screw 84 provided in the ventilation tube 142. The screw 84 matches the threaded hole 83, and the third locking part 81 and the fourth locking part 82 cooperate, that is, after the screw 84 is screwed into the threaded hole 83, the ventilation tube 142 cannot rotate relative to the end cap 141. Specifically, the outer periphery of the ventilation tube 142 is connected with a lug 1422 through which the screw 84 passes, and the end cap 141 is provided with a post 1414 for forming the threaded hole 83.

[0084] When assembling the main body 10, generally, the ventilation duct 142 and the end cap 141 are assembled first to form the connecting assembly 14, and then the connecting assembly 14 is connected to the outer shell 13 to form the main body 10.

[0085] When assembling the ventilation cylinder 142 and the end cap 141, the ventilation cylinder 142 is rotated first, so that the second locking block 1421 on the ventilation cylinder 142 enters the second locking slot 1411 on the end cap 141, thereby limiting the position of the ventilation cylinder 142 and the end cap 141 in the first direction. Then, through the cooperation of the third locking part 81 and the fourth locking part 82, the ventilation cylinder 142 cannot rotate relative to the end cap 141.

[0086] When assembling the connecting component 14 and the housing 13, the connecting component 14 is first rotated so that the first locking block 1401 on the connecting component 14 enters the first locking slot 131 on the housing 13, thereby limiting the position of the connecting component 14 and the housing 13 in the first direction. Then, through the cooperation of the first locking part 71 and the second locking part 72, the connecting component 14 cannot rotate relative to the housing 13.

[0087] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0088] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A hair care device, comprising a main body and an accessory rotatably disposed relative to the main body, characterized in that, One of the main body and the accessory is provided with a limiting block, and the other is provided with a limiting groove. The limiting groove includes an insertion end for the limiting block to enter in a first direction and a limiting part extending in the rotation direction of the accessory. One of the main body and the accessory is provided with an elastic element, and the other is provided with a first slot. The elastic element can elastically deform when the accessory rotates relative to the main body to engage or disengage from the first slot. When the elastic element is engaged in the first slot, the limiting block is at least partially located within the limiting portion. The first direction is parallel to the extension direction of the rotation axis of the accessory.

2. The hair care device according to claim 1, characterized in that, The limiting groove includes a connecting portion that connects the insertion end and the limiting portion. In the rotation direction of the accessory, the limiting portion is located on one side of the connecting portion, and the extending direction of the connecting portion is perpendicular to the extending direction of the limiting portion.

3. The hair care device according to claim 2, characterized in that, The elastic element is disposed on the main body, the first slot is disposed on the accessory, and the accessory is also provided with a second slot. The second slot and the first slot are spaced apart along the rotation direction of the accessory. During the process of the accessory rotating relative to the main body, the elastic element can be engaged or disengaged from the second slot. When the elastic element is located in the second slot, the limiting block is located in the communicating portion.

4. The hair care device according to claim 3, characterized in that, The elastic element abuts against the accessory along a first direction. During the rotation of the accessory relative to the main body, the elastic element deforms along the first direction to engage or disengage from the first or second slot.

5. The hair care device according to claim 1, characterized in that, The main body is provided with an insertion hole, and the accessory is provided with a first insertion part for inserting into the insertion hole along a first direction. The diameter of the insertion hole matches the outer diameter of the first insertion part. The limiting groove is formed on the outer peripheral surface of the first insertion part. The main body includes a hole sidewall that surrounds the insertion hole, and the limiting block is connected to the hole sidewall.

6. The hair care device according to claim 1, characterized in that, The main body includes a shell and a connecting assembly connecting the shell and the accessory. One of the shell and the connecting assembly is provided with a first bayonet, and the other is provided with a first locking block. In a first direction, the size of the first locking block matches the size of the first bayonet, and when the connecting assembly rotates relative to the shell, the first locking block can enter or disengage from the first bayonet.

7. The hair care device according to claim 6, characterized in that, The hair care device further includes a first locking structure for restricting the rotation of the connecting component relative to the housing. The first locking structure includes a first locking part and a second locking part respectively disposed on the housing and the connecting component. When the first locking part and the second locking part cooperate, at least a portion of the first locking block is located within the first locking slot.

8. The hair care device according to claim 7, characterized in that, The first locking part is an inner circumferential surface located inside the outer shell, and the shape formed by the inner circumferential surface is not a perfect circle. The second locking part is a second insertion part on the connecting assembly that mates with the inner circumferential surface.

9. The hair care device according to claim 6, characterized in that, The connecting assembly includes an end cap connected to the housing and a ventilation tube connected to the end cap. One of the end cap and the ventilation tube is provided with a second latch, and the other is provided with a second latch. In a first direction, the size of the second latch matches the size of the second latch, and when the ventilation tube rotates relative to the end cap, the second latch can enter or disengage from the second latch.

10. The hair care device according to claim 9, characterized in that, The hair care device further includes a second locking structure for restricting the rotation of the ventilation tube relative to the end cap. The second locking structure includes a third locking part and a fourth locking part respectively disposed on the end cap and the ventilation tube. When the third locking part and the fourth locking part cooperate, at least a portion of the second locking block is located within the second locking slot.

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