US2025366583A1PendingUtilityA1

Hair Curler

Assignee: MA WENJUANPriority: Jun 4, 2024Filed: Jul 3, 2024Published: Dec 4, 2025
Est. expiryJun 4, 2044(~17.9 yrs left)· nominal 20-yr term from priority
Inventors:Wenjuan Ma
A45D 2/367A45D 1/28A45D 1/04
47
PatentIndex Score
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Claims

Abstract

Disclosed is a hair curler, which belongs to the technical field of hairdressing tools. The hair curler comprises a handle part and a curling part rotatably connected to one end of the handle part. The curling part includes a heating tube rotatably connected to one end of the handle part and a curling tube detachably connected to the heating tube. The handle part comprises an outer shell and an inner shell rotatably connected within the outer shell. The heating tube rotates synchronously with the inner shell, and a conductive bearing is arranged between the outer shell and the inner shell. The disclosure effectively ensures the stability and accuracy of the electrical signal transmission through the power supply control of the handle part and the curling part via the conductive bearing, as well as through the direct wire connection.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A hair curler, comprising a handle part and a curling part rotatably connected to one end of the handle part, characterized in that the curling part includes a heating tube ( 701 ) rotatably connected to one end of the handle part and a curling tube ( 4 ) detachably connected to the heating tube ( 701 );
 the handle part comprises an outer shell ( 1 ) and an inner shell ( 2 ) rotatably connected within the outer shell ( 1 ), the heating tube ( 701 ) rotates synchronously with the inner shell ( 2 ),   wherein a conductive bearing is arranged between the outer shell ( 1 ) and the inner shell ( 2 ).   
     
     
         1 . The hair curler according to claim  1 , characterized in that the conductive bearing includes an outer bearing ( 201 ) and an inner bearing ( 202 ) fitted within it, the outer circumferential surface of the outer bearing ( 201 ) is in contact with the inner circumferential surface of the outer shell ( 1 ), and the inner circumferential surface of the inner bearing ( 202 ) is in contact with the outer circumferential surface of the inner shell ( 2 ). 
     
     
         2 . The hair curler according to claim  2 , characterized in that an electric controller ( 203 ) is arranged within the inner shell ( 2 ), a control circuit board ( 204 ) is arranged on the outer shell ( 1 ), and the outer bearing ( 201 ) and inner bearing ( 202 ) are electrically connected to the control circuit board ( 204 ) and the electric controller ( 203 ), respectively. 
     
     
         3 . The hair curler according to  claim 1 , characterized by further comprising a motor ( 6 ) fixedly connected within the inner shell ( 2 ), an output end of the motor ( 6 ) is fixedly connected to a gear ( 601 ), an internal ring gear ( 101 ) is fixedly connected within the outer shell ( 1 ), the gear ( 601 ) meshes with the internal ring gear ( 101 ), and the axis of the gear ( 601 ) does not coincide with the axis of the internal ring gear ( 101 ). 
     
     
         4 . The hair curler according to  claim 1 , characterized by further comprising:
 an installation ring ( 3 ) nested on the curling tube ( 4 ), and   a pressing plate ( 301 ) rotatably connected to the installation ring ( 3 ), a clamping plate ( 302 ) is fixedly connected to the pressing plate ( 301 ), and the clamping plate ( 302 ) is in contact with the outer circumferential surface of the curling tube ( 4 );   a torsion spring ( 303 ), one end of the torsion spring ( 303 ) is detachably connected to the outer circumferential surface of the installation ring ( 3 ), and a roller ( 304 ) is arranged at the other end of the torsion spring ( 303 ), the roller ( 304 ) is in contact with the pressing plate ( 301 ).   
     
     
         5 . The hair curler according to  claim 1 , characterized in that the inner shell ( 2 ) extends to one end of the outer shell ( 1 ) and is provided with a mounting seat, a connecting seat ( 7 ) is arranged within the mounting seat, and one end of the heating tube ( 701 ) is fixedly connected to the connecting seat ( 7 ). 
     
     
         6 . The hair curler according to  claim 1 , characterized in that an installation hole ( 401 ) is provided within the curling tube ( 4 ), a heat-conducting chamber ( 403 ) is arranged between the installation hole ( 401 ) and the outer circumferential surface of the curling tube ( 4 ), and a clamping strip ( 402 ) is arranged within the installation hole ( 401 ), a clamping groove is provided on the outer circumferential surface of the heating tube ( 701 ) to match the clamping strip ( 402 ). 
     
     
         7 . The hair curler according to claim  7 , characterized by further comprising a pressing piece ( 5 ) sleeved on the end of the curling tube ( 4 ), a screw rod ( 501 ) is fixedly connected to the pressing piece ( 5 ), and the threaded end of the screw rod ( 501 ) matches the heating tube ( 701 ). 
     
     
         8 . The hair curler according to  claim 1 , characterized in that a wiring base ( 205 ) is provided at the end of the inner shell ( 2 ) away from the heating tube ( 701 ), and the wiring base ( 205 ) is rotatably fitted with an external connecting wire.

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