A hair care brush

Abstract

A hair care brush comprising a housing, a brush tine set, and an air duct, the brush tine set including a fixed tine element and a movable tine element, the fixed tine element comprising fixed tines and a fixed tine carrier, the fixed tine carrier being fixed to the housing and having an air outlet duct arranged therein; the movable tine element comprising movable tines and a movable tine carrier, the movable tine carrier being rotatably mounted in the air outlet duct of the fixed tine carrier to form a laterally pivotable structure; the air duct is arranged in the housing and is connected to the movable tine element, wherein by pivoting the movable tine carrier, gaps are formed on its lateral surfaces which serve as air flow ducts, characterized in that: outwardly projecting deflection strips are formed on both sides of the movable tine carrier;on the fixed tine carrier, stop bars facing each other protrude inwards along both sides of the air outlet duct; when the movable tine carrier is pivoted in one direction, the corresponding deflection bar presses against the stop bar on the same side to close the associated air flow duct and open the opposite one; the surface of the deflection bar facing the stop bar is designed as a concave curved surface, so that the deflection bar is bent up at its outer end towards the stop bar in order to direct the escaping air flow in the direction the hair is combed through this curved surface.

Description

Technical area

[0001] The present utility model relates to the field of beauty and hair care tools, in particular a hair care brush, for example a straightening brush. Background technology

[0002] Straightening brushes are widely used in the hair care industry to straighten hair. A straightening brush primarily consists of a housing, brush teeth, and a handle. Some models also feature heating elements, heat-conducting metal teeth (e.g., heated teeth), and insulating components. The heated metal teeth allow the hair to be straightened more effectively. However, conventional straightening brushes can only comb the hair. Even with integrated heating elements, their effect is limited to heating the hair without achieving a significant straightening effect. To solve this problem, straightening brushes with a blower function have been developed. For example, Chinese patent application CN119523239A discloses an air deflector for a straightening brush and the corresponding brush.This device contains a movable component in the air distribution chamber that, depending on the angle of the brush, blocks either the left or right air channel through gravity. This automatically adjusts the airflow to the actual position and movement of the brush, without manual intervention. However, with this concept, the air only flows out along the direction of the teeth and cannot be specifically directed in the direction of the comb. Consequently, while the solution reduces the risk of hair breakage or split ends due to backward airflow, it does not actively contribute to hair straightening. Content of the utility model

[0003] The present utility model aims to overcome the disadvantages of existing technologies and provides a hair care brush with a more rational design, simplified structure and the ability to direct air flow in the direction of combing the hair to assist in straightening the hair, thereby improving the straightening effect and the user experience.

[0004] The following technical solution is used to solve the above-mentioned technical problems: A hair care brush comprises a housing, a brush tine set, and an air duct. The brush tine set consists of a fixed tine element and a movable tine element. The fixed tine element comprises fixed tines and a fixed tine carrier, which is fixed to the housing and in which an air outlet duct is arranged. The movable tine element comprises movable tines and a movable tine carrier, which is rotatably mounted in the air outlet duct of the fixed tine carrier to form a laterally pivoting structure. The air duct is integrated into the housing, and the movable tine element is connected to the air duct. The pivoting of the movable tine carrier creates gaps on its left and right sides that serve as airflow channels and are connected to the air duct.Outwardly projecting deflection strips are formed on both sides of the movable tine carrier. On the fixed tine carrier, facing stop strips extend along both sides of the air outlet duct. The width of the movable tine carrier exceeds the distance between the stop strips of the air outlet duct, so that when the movable tine carrier is pivoted in one direction, the corresponding deflection strip presses against the stop strip on the same side to close the associated airflow duct while opening the opposite airflow duct. The surface of the deflection strip facing the stop strip is designed as a concave curved surface, whereby the outer end of the deflection strip is bent upwards towards the stop bar. This concave curved surface directs the escaping airflow in the direction in which the hair is combed.

[0005] Furthermore, an axle pin is attached to the front and rear ends of the movable tine carrier, which engages with the fixed tine carrier at both ends of the air outlet duct to form a rotatable bearing.

[0006] Furthermore, each axle pin has at least one retaining ring, and in the movable tine carrier, rotational grooves are provided at the positions corresponding to the retaining rings, into which the retaining rings engage.

[0007] Furthermore, the brush comprises heating tines and insulating tine elements, wherein the heating tines are connected to a heating element, the insulating tine elements consist of insulating tines and an insulating tine carrier, the insulating tine elements envelop the heating tines and each heating tine corresponds to an insulating tine. the heating tine corresponds to an insulating tine.

[0008] Furthermore, the insulating tine carrier covers the fixed tine carrier and fixes the axle journals of the movable tine carrier so that the axle journals are rotatably mounted between the fixed tine carrier and the insulating tine carrier.

[0009] Furthermore, the movable tine element is arranged in the central area of ​​the fixed tine element, and the heating tines are placed laterally next to the movable tine element on one or both sides.

[0010] Better still, at least two rows of heating tines are arranged on both sides of the movable tine element, with adjacent rows of heating tines arranged offset from one another.

[0011] Preferably, the bottom of the air duct is designed to rise towards the front, so that the distance between the movable tine carrier and the duct bottom gradually decreases towards the front.

[0012] The housing further comprises an upper housing half and a lower housing half, which fix the fixed prong element, the insulating prong elements and the air duct by joining together; a connection head containing lead pins is attached to the rear side of the upper and lower housing halves; an adapter board is installed between the front end of the connection head and the rear side of the housing halves, through which an electrical connection is established between the heating elements and the lead pins; a plug connection is formed on the surface of the connection head, which has a detachable connection to a fan-carrying main unit.

[0013] The present utility model achieves the effect that, by arranging stop bars on both sides of the air outlet channel of the fixed tine carrier and forming outwardly projecting deflection bars on both sides of the movable tine carrier, the deflection bars can overlap the stop bars. When the movable tine element pivots sideways during the combing process, the deflection bar on one side presses against the corresponding stop bar, closing the associated airflow channel and simultaneously opening the opposite channel. The airflow follows the orientation of the deflection bars and flows outward through the airflow channels, whereby the direction of the airflow essentially coincides with the combing direction of the hair. This dries and tightens the hair simultaneously, enabling improved hair straightening and an optimized user experience. Description of the characters Fig. 1 shows a perspective view of the three-dimensional structure of the utility model; Fig. Figure 2 shows an exploded view of the structure of the utility model; Fig. 3 shows a longitudinal sectional view of the utility model; Fig. 4 shows an enlarged detailed view of Fig. 3; Fig. 5 shows a cross-sectional view of the usage status of the utility model (combing hair to the right); Fig. Figure 6 shows another cross-sectional view of the usage status of the utility model (combing hair to the left); Fig. 7 shows a perspective view of the movable tine element; Fig. 8 shows a sectional view of the combination state of the utility model with the main device.

[0014] In the figures, 11: Housing top, 12: Housing bottom, 21: Fixed tines, 22: Fixed tine carrier, 23: Air outlet duct, 24: Stop bars, 25: Pivot bearing, 31: Movable tines, 32: Movable tine carrier, 33: Axle journal, 34: Retaining rings, 35: Deflection bars, 36: Concave arc surface, 4: Heating tines, 41: Heating element, 5: Insulating tine set, 51: Insulating tines, 52: Insulating tine carrier, 6: Air duct, 7: Plug-in head, 71: Plug-in connection, 72: Lead pins, 73: Adapter board, 8: External blower, 81: Fan, 82: Heating unit, 9: Air flow duct, 10: Hair. Examples of implementation

[0015] In this embodiment, with reference to Figures 1 to 8, the hair care brush that can be combined with a fan-supporting main unit 8 is described. The brush comprises a housing consisting of an upper housing half 11 and a lower housing half 12, a brush tine set, and an air duct 6. The brush tine set consists of a fixed tine element 2 and a movable tine element 3. The fixed tine element 2 comprises fixed tines 21 and a fixed tine carrier 22, which is fixed to the upper housing half 11. An air outlet duct 23 is arranged in the fixed tine carrier 22. The movable tine element 3 comprises movable tines 31 and a movable tine carrier 32, which is rotatably mounted in the air outlet duct 23 of the fixed tine carrier 22 to form a pivotable structure with a pivot angle of 3-45 degrees.The air duct 6 is installed in the lower housing half 12 and is fixed by the upper housing half 11 (the air duct 6 can alternatively be designed as a one-piece structure with the lower housing half 12). The movable tine element 3 is connected to the air duct 6. Pivoting the movable tine carrier 32 creates gaps on its left and right sides, which serve as air flow channels 9 and are connected to the air duct 6. Outwardly projecting deflection strips 35 are formed on both sides of the movable tine carrier 32. On the fixed tine carrier 22, mutually facing stop strips 24 extend along the air outlet duct 23. The width of the movable tine carrier 32 exceeds the distance between the stop strips 24 of the air outlet duct 23.When the movable prong element 3 pivots in one direction, the corresponding deflection bar 35 presses against the stop bar 24 on the same side, closing the associated airflow channel 9 and opening the opposite channel. The surface of the deflection bar 35 facing the stop bar 24 is designed as a concave curved surface 36, which bends the outer end of the deflection bar 35 slightly toward the stop bars 24. This directs the escaping airflow in the direction the hair 10 is being combed, which significantly assists in straightening the hair and produces a softer blow-drying result. For example, when combing to the right (hair 10 to the right), the movable prongs 31 pivot to the left due to the applied force. This closes the left airflow channel 9 and completely opens the right one. The air flow follows the concave curved surface 36 of the right deflection bar 35 and flows out to the right in the comb direction (see . Fig. 5). When combing to the left, the air flow is redirected to the left (see Fig. 6).

[0016] At the front and rear ends of the movable tine carrier 32, axle pins 33 are respectively attached, which engage in the fixed tine carrier 22 at both ends of the air outlet duct 23 to form a rotatable bearing, ie, the rotation takes place around the axle pins 33 as an axis.

[0017] Each axle pin 33 carries a retaining ring 34. In the movable tine carrier 32, rotational grooves 25 are provided at the positions corresponding to the retaining rings 34, into which the retaining rings 34 engage to prevent loosening.

[0018] The brush further comprises heating prongs 4 and insulating prong elements 5. The heating prongs 4 are connected to a heating element 41 (PTC and / or NTC heating element). The insulating prong elements 5 consist of insulating prongs 51 and an insulating prong carrier 52, which can be made of silicone, for example. The insulating prong elements 5 enclose the heating prongs 4, with each heating prong 4 corresponding to an insulating prong 51. Heating the heating prongs 4 softens the hair, allowing for straighter and smoother combing.

[0019] The insulating tine carrier 52 covers the fixed tine carrier 22 and fixes the axle journals 33 of the movable tine carrier 32 so that the axle journals 33 are rotatably mounted between the fixed tine carrier 22 and the insulating tine carrier 52.

[0020] The movable tine element 3 is arranged in the central area of ​​the fixed tine element 2, and the heating tines 4 are positioned laterally next to the movable tine element 3 on both sides (or only on one side). Two rows of heating tines 4 are arranged on each side of the movable tine element 3, with adjacent rows of heating tines 4 being offset from each other. This arrangement increases the frictional force on the hair, thus further improving the straightening effect.

[0021] The bottom of the air duct 6 is designed to slope upwards, so that the distance between the movable tine carrier 32 and the duct bottom gradually decreases toward the front. This creates a compression effect for the air flow, which increases the discharge pressure. The air duct 6 is designed to slope upwards, so that the distance between the movable tine carrier 32 and the duct floor gradually decreases toward the front. This creates a compression effect for the air flow, which increases the discharge pressure.

[0022] The upper housing half 11 and the lower housing half 12 are assembled to fix the fixed prong element 2, the insulating prong elements 5, and the air duct 6. A connection head 7 containing lead pins 72 is attached to the rear of the upper housing half 11 and the lower housing half 12. An adapter board 73 is installed between the front end of the connection head 7 and the rear of the housing halves, which establishes an electrical connection between the heating elements 41 and the lead pins 72. A plug connection 71 and a locking groove are formed on the surface of the connection head 7. A connection latch and a locking latch can be provided on the main unit 8, which engage with the plug connection 71 and the locking groove to realize a detachable connection with the main unit 8.This allows main units with different functions to be flexibly exchanged, for example a main unit 8 with a heating unit 81 to blow out heated air.

[0023] The above description explains the utility model in detail. The illustrated embodiments serve merely as preferred examples and are not intended to limit the scope of protection of the utility model. All changes and modifications made within the scope of the claims remain within the scope of protection of this utility model. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr">

[0000] <h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> CN 119523239A

[0002]

Claims

[1] A hair care brush comprising a housing, a brush tine set and an air duct, wherein the brush tine set contains a fixed tine element and a movable tine element, the fixed tine element comprising fixed tines and a fixed tine carrier, wherein the fixed tine carrier is fixed to the housing and an air outlet duct is arranged therein; the movable tine element comprises movable tines and a movable tine carrier, wherein the movable tine carrier is rotatably mounted in the air outlet duct of the fixed tine carrier to form a laterally pivotable structure; the air duct is arranged in the housing and is connected to the movable tine element, wherein by pivoting the movable tine carrier, gaps are formed on its lateral surfaces which serve as air flow channels, characterized bythat: outward-projecting deflection strips are formed on both sides of the movable tine carrier; on the fixed tine carrier, stop strips facing each other protrude inwards along both sides of the air outlet duct; when the movable tine carrier is pivoted in one direction, the corresponding deflection strip presses against the stop strip on the same side in order to close the associated air flow duct and open the opposite one; the surface of the deflection strip facing the stop bar is designed as a concave curved surface, so that the deflection strip is bent up at its outer end towards the stop bar in order to direct the escaping air flow in the direction in which the hair is combed by this curved surface. [2] Hair care brush according to claim 1, characterized by that axle journals are arranged at the front and rear ends of the movable tine carrier, which engage with the fixed tine carrier at both ends of the air outlet duct to form a rotatable bearing. [3] Hair care brush according to claim 2, characterized by that at least one locking ring is attached to each axle journal and that rotational grooves are provided in the movable tine carrier at positions corresponding to the locking rings, into which the locking rings engage. [4] Hair care brush according to claim 2 or 3, characterized by that it further comprises heating tines and insulating tine elements, wherein the heating tines are connected to a heating element; the insulating tine elements comprise insulating tines and an insulating tine carrier; the insulating tine elements enclose the heating tines so that each heating tine corresponds to an insulating tine. [5] Hair care brush according to claim 4, characterized by that the insulating tine carrier covers the fixed tine carrier and fixes the axle journals of the movable tine carrier. [6] Hair care brush according to claim 4, characterized by that the movable tine element is arranged in the central area of ​​the fixed tine element and the heating tines are placed laterally next to the movable tine element on one or both sides. [7] Hair care brush according to claim 6, characterized by that at least one row of heating tines is arranged on both sides of the movable tine element. [8] Hair care brush according to claim 7, characterized by that the heating tines on both sides of the movable tine element each have at least two rows, with adjacent rows of heating tines being arranged offset from one another. [9] Hair care brush according to claim 1, characterized bythat the floor of the air duct rises towards the front so that the distance between the movable tine carrier and the duct floor gradually decreases towards the front to create a compaction effect for increased air pressure. [10] Hair care brush according to claim 4, characterized by that: the housing comprises an upper housing half and a lower housing half which, when joined together, fix the fixed prong element, the insulating prong elements and the air duct; a connection head containing lead pins is attached to the rear side of the upper and lower housing halves; an adapter board is installed between the front end of the connection head and the rear side of the housing halves, which adapter board establishes an electrical connection between the heating elements and the lead pins; a plug connection is formed on the surface of the connection head, which enables a detachable connection to a fan-carrying main unit.

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