A kind of elevator door contact switch
A contact switch, elevator door technology, applied in electrical switches, contact operating parts, contact operating mechanisms, etc., can solve the problem of destroying the stability of the elevator door contact switch, short life of the elevator switch, poor contact of the static contact, etc. problem, to achieve the effect of compact structure, simple structure and small volume
Active Publication Date: 2020-10-16
宁波市北仑恒业电梯配件厂(普通合伙)
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Problems solved by technology
For the landing door device, the door lock switch is usually the fault. The reason for the door lock failure is that the switch structure is complex, which leads to the switch being too large and easy to enter dust and water, resulting in poor contact between the dynamic and static contacts.
[0003] In addition, in some elevator door contact switches, the two moving contacts or two static contacts will interfere with each other, resulting in a short service life of the elevator switch and destroying the stability of the elevator door contact switch.
Method used
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Embodiment Construction
[0016] An elevator door contact switch, comprising an upper housing 1 and a lower housing 2, a spring 11 is installed in the upper housing 1, one end of the spring 11 is connected to a fixed terminal 12, and the other end of the spring 11 is connected to a first-stage push On the rod device 13, the upper casing 1 includes a movable contact assembly 14, the movable contact assembly 14 is connected with an elastic metal sheet 15, and the elastic metal sheet 15 is fixed on the upper casing 1, and the elastic metal sheet 15 is offset against the primary push rod device 13; the upper housing 1 is also installed with a static contact assembly 16 that is compatible with the movable contact assembly 14, and the static contact assembly 16 is connected with a metal sheet and installed on the On the casing 1, the primary push rod device 13 includes a support arm 131, the support arm 131 is arc-shaped as a whole, and an iron rod 132 is crossed at the bottom of the support arm, and the iron...
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The invention relates to an elevator door contact switch comprising an upper housing and a lower housing. A spring is installed in the upper housing. One end of the spring is connected to a fixed terminal, and the other end of the spring is connected to a first-level push rod device. The upper housing includes a movable contact assembly which is connected to an elastic metal sheet. The elastic metal sheet is fixed on the upper housing, and the elastic metal sheet abuts against the first-level push rod device. The upper housing is also internally equipped with a stationary contact assembly matched with a movable contact assembly. The stationary contact assembly is connected to a metal piece and is installed on the upper housing, the first-level push rod device is pushed, so the stationary contact assembly and the movable contact assembly touch, and thus the opening or closing or the elevator door contact switch is achieved. The elevator door contact switch has the advantages of a long life, stable performance, a compact structure and a small size and is suitable for large-scale promotion.
Description
technical field [0001] The invention relates to a contact switch, in particular to an elevator door lock contact switch used for an elevator door device. Background technique [0002] The most accidents on elevators are landing door devices and door operators, and most of these failures occur on electrical switches. For the landing door device, the door lock switch is usually the fault. The reason for the door lock failure is that the switch structure is complex, resulting in the switch being too large, easy to enter dust and water, resulting in poor contact between the dynamic and static contacts. [0003] In addition, there will be mutual interference between the two moving contacts or the two static contacts in some elevator door contact switches, resulting in short service life of the elevator switch and destroying the stability of the elevator door contact switch. Contents of the invention [0004] Aiming at the present situation of the above-mentioned prior art, the...
Claims
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IPC IPC(8): H01H3/16
CPCH01H3/163
Inventor 刘恒丰
Owner 宁波市北仑恒业电梯配件厂(普通合伙)