CN-224228489-U - Automatic door opening and closing mechanism and door box equipment

CN224228489UCN 224228489 UCN224228489 UCN 224228489UCN-224228489-U

Abstract

The utility model relates to an automatic door opening and closing mechanism and door box equipment, which can realize full-angle automatic door opening and closing and improve user experience. The automatic door opening and closing mechanism comprises a hinge spring system, a pull rope driving system and a pull rope driving system, wherein the hinge spring system comprises a hinge assembly, a first pull rope connected with the hinge assembly and a spring connected with a box body frame, the spring is connected with the first pull rope and used for applying a pulling force moment balanced with a gravity moment to the door body assembly, the pull rope driving system comprises a driving motor arranged on the box body frame, a second pull rope connected with the first pull rope or the spring and a third pull rope connected with the door body assembly, the second pull rope and the third pull rope are oppositely wound at the output end of the driving motor, and when the second pull rope is loosened or loosened under the driving of the driving motor, the third pull rope is correspondingly loosened or loosened under the driving of the driving motor and used for increasing or reducing the pulling force moment applied to the door body assembly so as to break a moment balanced state.

Inventors

ZHU KAIJIE
WANG SHIXING
CEN QI
HE XIAOLEI

Assignees

宁波方太厨具有限公司

Dates

Publication Date: 20260512
Application Date: 20240430

Claims (10)

1. Automatic door opening and closing mechanism for set up between box frame and door body subassembly, its characterized in that includes: A hinge spring system comprising a hinge assembly for rotatably mounting the door assembly to the housing frame, a first pull cord connected to the hinge assembly, and a spring connected to the housing frame for applying a pull force moment to the door assembly that balances a force moment of gravity of the door assembly, and The pull rope driving system comprises a driving motor, a second pull rope and a third pull rope, wherein the driving motor is arranged on the box body frame, the second pull rope is connected with the first pull rope or the spring, the third pull rope is connected with the door body assembly, the second pull rope and the third pull rope are oppositely wound at the output end of the driving motor, and when the second pull rope is loosened or tightened under the driving of the driving motor, the third pull rope is correspondingly tightened or loosened under the driving of the driving motor and is used for increasing or reducing the pulling force moment applied to the door body assembly so as to break the moment balance state.
2. The door opening and closing mechanism according to claim 1, wherein the driving motor comprises a motor body, a first output shaft and a second output shaft which are in driving connection with the motor body, the second pull rope is wound on the first output shaft in a clockwise direction, and the third pull rope is wound on the second output shaft in a counterclockwise direction.
3. The automatic door opening and closing mechanism as recited in claim 2, wherein the first output shaft and the second output shaft are coaxially disposed on opposite sides of the motor body.
4. The door opening and closing mechanism according to any one of claims 1 to 3, wherein the hinge assembly comprises a hinge base fixedly connected with the box frame, a hinge bracket fixedly connected with the box frame, and a rotating shaft rotatably connecting the hinge bracket with the hinge base, two ends of the first pull rope are respectively and limitedly connected with the hinge bracket and the spring, and two ends of the third pull rope are respectively and limitedly connected with the hinge bracket and the output end of the driving motor.
5. The door opening and closing mechanism as claimed in claim 4, wherein the second pulling rope is fixedly connected to a portion of the first pulling rope adjacent to the spring through a rope connection block.
6. The automatic door opening and closing mechanism of claim 5, wherein the hinge spring system further comprises a roller assembly for being mounted to the box frame, the roller assembly being disposed between the spring and the hinge bracket, the first pull cord and the second pull cord bypassing the roller assembly such that a direction of a pulling force applied to the spring by the first pull cord and the second pull cord always coincides with an axial direction of the spring.
7. The door opening and closing mechanism as claimed in claim 6, wherein the roller assembly includes an adjusting roller disposed adjacent to an axis of the spring and a fixing roller disposed adjacent to the hinge bracket, the first pulling rope sequentially bypasses the adjusting roller and the fixing roller from the spring to extend to the hinge bracket, and the second pulling rope bypasses the adjusting roller from the rope connection block to extend to an output end of the driving motor.
8. The automatic door opening and closing mechanism of claim 7, wherein the pull-cord drive system further comprises a guide roller for being mounted to the box frame, the guide roller being disposed adjacent the hinge bracket, the third pull-cord first bypassing the guide roller from an output of the drive motor to extend to the hinge bracket.
9. The door opening and closing mechanism according to claim 4, wherein the driving motor has a hall sensor built therein, the door opening and closing mechanism further comprises a door lock assembly provided between the door body assembly and the housing frame and a position sensor provided to the hinge bracket, the door lock assembly having a locking state and an unlocking state automatically switchable to each other, and issuing a door closing completion signal when switching from the unlocking state to the locking state.
10. Door case apparatus, characterized by comprising: A box frame; Door body assembly, and The automatic door opening and closing mechanism according to any one of claims 1 to 9, which is provided between the cabinet frame and the door assembly.

Description

Automatic door opening and closing mechanism and door box equipment Technical Field The utility model relates to the technical field of household appliances, in particular to an automatic door opening and closing mechanism and door box equipment. Background Door box apparatuses such as built-in dishwashers are relatively commonly used household appliances, and automatic opening and closing of the door box apparatuses is generally achieved by sliding a door body through a push rod mechanism at the top of the loading apparatus. However, on one hand, the existing push rod mechanism has longer push rod extension after the push rod ejects out of the door body, which affects the appearance, and on the other hand, the existing push rod mechanism is limited by the push rod form, and can only realize automatic door opening and closing in a small angle range, the rest angle still needs to be manually completed by a user, and when the door is manually opened and closed, the user experience is poor because larger door locking force is often needed to be overcome. In addition, in the automatic door closing process, a push rod in the existing push rod mechanism is usually hard-connected with a door lock so as to pull a door body to close the door, and if the hand of a user is just located between the door body and the box body at the moment, the hand of the user is easy to be clamped, so that a great potential safety hazard exists. Disclosure of utility model Based on the above, it is necessary to solve the problems that the existing push rod mechanism can only realize automatic door opening and closing in a small angle range, the user experience is poor and potential safety hazards exist. In one embodiment of the present utility model, the present utility model provides an automatic door opening and closing mechanism for being disposed between a cabinet frame and a door assembly, comprising: A hinge spring system comprising a hinge assembly for rotatably mounting the door assembly to the housing frame, a first pull cord connected to the hinge assembly, and a spring connected to the housing frame for applying a pull force moment to the door assembly that balances a force moment of gravity of the door assembly, and The pull rope driving system comprises a driving motor, a second pull rope and a third pull rope, wherein the driving motor is arranged on the box body frame, the second pull rope is connected with the first pull rope or the spring, the third pull rope is connected with the door body assembly, the second pull rope and the third pull rope are oppositely wound at the output end of the driving motor, and when the second pull rope is loosened or tightened under the driving of the driving motor, the third pull rope is correspondingly tightened or loosened under the driving of the driving motor and is used for increasing or reducing the pulling force moment applied to the door body assembly so as to break the moment balance state. According to one embodiment of the application, the driving motor comprises a motor body, a first output shaft and a second output shaft which are in driving connection with the motor body, wherein the second pull rope is wound on the first output shaft along the clockwise direction, and the third pull rope is wound on the second output shaft along the anticlockwise direction. According to one embodiment of the application, the first output shaft and the second output shaft are coaxially arranged on opposite sides of the motor body. According to one embodiment of the application, the hinge assembly comprises a hinge base, a hinge bracket and a rotating shaft, wherein the hinge base is fixedly connected with the box body frame, the hinge bracket is fixedly connected with the door body assembly, the rotating shaft is rotatably connected with the hinge base, two ends of the first pull rope are respectively and limitedly connected with the hinge bracket and the spring, and two ends of the third pull rope are respectively and limitedly connected with the hinge bracket and the output end of the driving motor. According to one embodiment of the application, the second pull rope is fixedly connected to the first pull rope at a position adjacent to the spring through a rope connecting block. According to one embodiment of the application, the hinge spring system further comprises a roller assembly for being mounted to the box frame, the roller assembly being arranged between the spring and the hinge bracket, the first pull rope and the second pull rope bypassing the roller assembly such that a pulling force applied to the spring by the first pull rope and the second pull rope always coincides with an axial direction of the spring. According to one embodiment of the application, the roller assembly comprises an adjusting roller arranged adjacent to the axis of the spring and a fixed roller arranged adjacent to the hinge bracket, the first pull rope sequentially bypasses the adjusting roller and the f