| 摘要 |
<p>The present invention is to give children and pets freedom, and the children should be safe and free. Therefore, handles are provided at low positions and, when the lower handle is pulled, the upper handle performs the same operation, a locked door is pulled, and the door can be opened by opening the door. However, in this case, the children can wander too much, and a control device has to be made. The control device is made in a type of locking a door handle positioned below.</p> |
