CN2142602Y

CN2142602Y - Push switch

Info

Publication number: CN2142602Y
Application number: CN 92244327
Authority: CN
Inventors: 王卫
Original assignee: NINGBO MACHINE TOOL APPLIANCE FACTORY
Current assignee: NINGBO MACHINE TOOL APPLIANCE FACTORY
Priority date: 1992-12-03
Filing date: 1992-12-03
Publication date: 1993-09-22
Anticipated expiration: 2002-12-03

Abstract

The utility model discloses a push switch. The utility model comprises a pedestal which is fixed to an installing plate. A contact point, a binding post and a contact bridge are installed on the pedestal. A push assembly is composed of a button, a swinging seat and a safety cover. A push rod and a spring are positioned in the swinging seat. Because the swinging seat and the safety cover are riveted on the installing plate, and the button and safety cover are positioned as the detachable locking mode; so by operating the button, the swinging rod can drive the push rod to do action, and the on-off control of the circuit can be realized. If the button is taken off, the circuit is unable to be conducted; so the function of the security protection is realized, and the accident of the electrical equipment, which is caused by the electricity playing or the error action can be avoided. The utility model has the advantages of simple structural design, convenient use and safe use.

Description

Push switch

The utility model relates to mechanical electric apparatus, particularly electrical machinery formula security protection switch.

Push switch is mainly used in the usefulness of disjunction in the starting, running of motor, because Push switch is in tangible exposure portion, anyone, instrument, device all can be had a mind to or be not intended to touch switch presses button, cause running or disjunction that motor is unnecessary, even have an accident.

The purpose of this utility model is exactly to provide a kind of human accident that can prevent that improper behavior from causing at the existing in prior technology defective, and the safeguard procedures that tighten security effectively are to avoid the Push switch of unnecessary misoperation.

The purpose of this utility model is achieved by the following scheme: it is at original pedestal, binding post, the contact, contact bridge, push rod, emphasis improves pressing part on the switch basis that other part such as spring constitutes, promptly by pressing button, the swing seat, the assembly of pressing that safety guard is formed replaces former in moving part, wherein the swing seat as the operation contact system protects with rising, indication, the safety guard of console switch disjunction forms seesaw type with mounting panel and is connected, and the button of pressing of console switch break-make is plugged on and locatees by snap close on the safety guard, so press button and can insert at any time as required or take off, take off to press and just can't drive the swing seat behind the button and make switch activated, but but break contact, disconnect during in order to power failure, cause motor rotation because of switch is in on-state when preventing to send a telegram here again.

The utility model is compared with known technology, because structure is special, therefore only when operating personnel work; by pressing the action of button; the circuit of controlled electrical equipment is switched on or switched off, when take off press button after, just can't realize connecting; any action this moment all can't make electric motor starting; so played the safeguard protection effect, stopped to play electricity or employed electrical equipment arbitrarily the accident that caused, the design is simple and reasonable for structure, easy to use; be used for the control of motor or circuit, safe and reliable.

Accompanying drawing 1 provides structural representation of the present utility model.

Following embodiment with reference to the accompanying drawings is described in further detail.

From accompanying drawing 1 as can be known, Push switch has the pedestal (5) and metal mounting panel (10) riveted joint one of a bakelite system, the binding post (7) of fixing fixed contact (9) on the pedestal (5) and joining with external power, adorning the contact bridge (6) that has moving contact in the pedestal (5), it is by U type support (8) and pedestal (5) riveted joint, and whether the moving contact on the contact bridge (6) combines with fixed contact (9) is to realize connecting and disconnecting of the circuit.And the promotion of the action of moving contact by push rod (11), spring (12) obtains, push rod (11), spring (12) are arranged in the swing seat (4) of pressing assembly, the action of push rod (11) is decided by swing seat (4), and swing seat (4) with press button (1), safety guard (2) and form and press assembly, by plastics system.Press button (1) end face right side one aperture is arranged, can spy on safety guard (2) with its different color, two pins were plugged in safety guard (2) and were inserted swing seat (4) inside groove, and swung seat (4), safety guard (2), the riveted joint of mounting panel (10) trisome, formed the seesaw type swing.Press button (1) and be plugged on safety guard (2) upward by the location of the snap close (3) on 2 symmetric positions, detachable connection.This snap close (3) can be located on two pins or press on button (1) madial wall.

Button (1) is pressed in operation, makes the push rod (11) in the swing seat (4) slide to left end or right-hand member on contact bridge (6), thereby makes circuit turn-on or disconnection.Because press the difference of button (1) and safety guard (2) color, reminds people is when pressing when pressing button (1) right-hand member, circuit turn-on is pressed when left end, and circuit disconnects.

Claims

1, a kind of Push switch, comprise pedestal (5) and fixedly connected one with mounting panel (10), fixing fixed contact (9) on the pedestal (5) but and the binding post of external power supply (7), the contact bridge (6) that has moving contact is connected with pedestal (5) by U type support (8), impel the swing push rod (11) of action and spring (12) of contact bridge (6) to be contained in to be with and to press the pressing in the assembly of button (1), it is characterized in that:

A. the described assembly of pressing comprises and presses button (1), swing seat (4) and a safety guard (2);

B. swing seat (4) is connected with safety guard (2) and mounting panel (10) formation seesaw type;

C. press button (1) and be plugged on the safety guard (2), by snap close (3) location, detachable connection.

2, Push switch as claimed in claim 1 is characterized in that pressing button (1) and establishes 2 with the location snap close (3) of safety guard (2) on symmetric position, can be located on two pins or be located at and press on button (1) madial wall.