Abstract: A side pressure plate and a preparation method, comprising a first layer plate, a second layer plate and a third layer plate, all of which comprise a plurality of square plates, the square plates comprising a cutting surface and a long side surface, the cutting surfaces of the plurality of square plates being bonded to each other to form the second layer plate, and the long side surfaces of the plurality of square plates being bonded to each other to form the first layer plate and the third layer plate, the three layers are bonded and pressed together to form the side pressure plate. Cutting a number of hollow cylindrical bamboo tubes into multiple bamboo strips paste side pressure to form the first layer of plate, the second layer of plate and the third layer of plate, and finally the three layers of plate bonding.

Abstract: A refrigerator contains a storage compartment, the storage compartment has an inner wall. A first door and a second door close off the storage compartment and a beam being rotatably disposed on the first door. The beam has an accommodating space for accommodating heat-insulation material. An end portion of the beam has an air blocking member, and when the first door is closed, the air blocking member is located between the end portion and the inner wall. The air blocking member is capable of effectively preventing excessive leakage of cold air and generation of condensation.

Abstract: The present invention discloses a muted key module, an electronic device and an implementation method. The key module includes a switch member, a triggering mechanism and a supporting member, wherein the triggering mechanism is arranged corresponding to the switch member. The triggering mechanism can be moved along the contacting and separating directions of the switch member, thus to realize an ON or OFF operation of the switch member. A muting layer is arranged between the switch member and the supporting member. In the present invention, the muting layer is arranged between the switch member and the supporting member, so the impact force the between the triggering mechanism and the switch member can be cushioned by the muting layer, thereby reducing the noise produced when the key is pressed, thus to improve the quality of the final product as a whole.