Button switch structure for elevators

Abstract

The invention discloses a button switch structure for elevators, comprising a printed board assembly, a bottom shell part, a button part and a fastener part. The printed board assembly is fixed at the bottom of the bottom shell part, and is used for controlling action of an elevator and emitting light. The bottom shell part includes a first waterproof sealing member and a shell body, the shell body is provided with an inner cavity used for accommodating and fixing the button part, and the shell body is provided with a transparent cover in which a light source of the printed board assembly can be arranged. The button part is used for accepting pressing action of a user and receiving and reflecting light. The fastener part includes a second waterproof sealing member and a fastener body which is nested onto the button part and is connected with the shell body. The first waterproof sealing member is mounted on the contact surface of the bottom shell part and the fastener part, and is used for preventing water flowing in from between the fastener part and the button part from flowing out of the button switch. The second waterproof sealing member is mounted between the fastener part and a switch panel, and is used for preventing water flowing in from the hole of the switch panel from flowing out of the button switch. The button switch structure for elevators has the advantages of simple structure, easy installation and low cost. The button switch structure is waterproof, and the luminescence property and operation hand feel of the button are improved.

Description

technical field [0001] The invention relates to the field of elevators, in particular to a button switch structure with good waterproof performance and luminous performance. Background technique [0002] With the rapid development of the city, there are more and more high-rise buildings, and the resulting elevator fire protection and waterproof requirements are also getting higher and higher. For example, the invention patent application with publication number CN102280285A discloses an elevator anti-collision, waterproof and fire-proof button. return spring. Because the light emitting source of the button is covered with a layer of waterproof rubber, and the light transmittance of general rubber is poor, which causes the loss of the button's luminous performance. Increase the cost of the button. Simultaneously, since the return spring is omitted for the button, the operating feel of the button will also be reduced. Contents of the invention [0003] The technical prob...

AI Technical Summary

Problems solved by technology

Because the light emitting source of the button is covered with a layer of waterproof rubber, and the light transmittance of general rubber is poor, which causes the loss of the button's luminous performance. If you use rubber with better light transmittance, it will be greatly affected by its special Add button cost

At the same time, because the button saves the return spring, the operating feel of the button will also be reduced

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