CN201038027Y

CN201038027Y - Appliance switch

Info

Publication number: CN201038027Y
Application number: CNU2007201104268U
Authority: CN
Inventors: 徐伟宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-30
Filing date: 2007-05-30
Publication date: 2008-03-19
Anticipated expiration: 2017-05-30

Abstract

The utility model discloses a switch, which comprises a rectangular case. The utility model is characterized in that the rectangular case is provided with a lower opening and a side opening which are mutually perpendicular, a base is installed on and closes the lower opening, the base is connected with a connecting hole of the case via a connecting button of the base, a static contacting sheet and a motional contacting sheet support are respectively installed on both sides of a separating plate on the base in the case, a motional contacting sheet is arranged on the motional contacting sheet support, a push rod is installed on the side opening and can move along the axial line of the push rod, a push rod resetting spring is arranged between the push rod and the case, two contact rods are fixed on the push rod to strike the motional contacting sheet, and a case on the side face of the push rod is provided with a self-locking rod which is in a self-locking groove and can be clipped the side face of the push rod. The utility model has the following advantages of compact and simple structure, smallest size compared with same products, high parameter of electric performance, convenient manufacturing and installing and low manufacturing cost, the utility model does not need to be welded by ultrasonic wave, and various push buttons and self-locking buttons can be freely replaced.

Description

Appliance switch

Technical field

The utility model relates to electric tool switch, particularly a kind of appliance switch that is used for electric tools such as power drill, sweep-saw, electric circular saw.

Background technology

Electric tool switch is mainly used in the break-make control of portable type electric tool power supply.For example, notification number is that the Chinese patent literature of CN2324625 discloses a kind of like this electric tool switch, it comprises housing, handle frame, swing span, spring nest seat, awl spring, bearing pin, handle and by clamping piece, location lid, the valve rubber of screw on housing, be located at binding post and locking wire screw on the housing, by screw deciding the contact frame and being fixed on the bearing of the swinging in the cross rest frame in the housing on binding post, it is characterized in that being provided with in the groove of swing span lower end moving contact frame with spring compression.Shortcomings such as this type electric tool switch ubiquity volume is big, complex structure, manufacturing cost height.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a kind of volume is little, simple in structure, the bipolar appliance switch of low cost of manufacture.

The utility model solves the problems of the technologies described above the technical scheme that is adopted:

A kind of appliance switch, comprise a rectangular enclosure, it is characterized in that: described shell has mutually perpendicular under shed and side opening, at lower opening pedestal is installed, described pedestal sealing under shed, pedestal is connected by the connecting hole on the shell of the junction button on the pedestal and lower opening, the both sides of demarcation strip are equipped with static contact and movable contact spring support respectively on the pedestal in described shell, on the movable contact spring support movable contact spring is housed, the push rod that can move along the push rod axis direction is installed at the side opening place, the push rod back-moving spring is housed between push rod and shell, on push rod, be fixed with two contact stem of stirring movable contact spring, the self-lock rod in the self-locking grooves that can snap in the push rod side is housed on the shell of push rod side.

For optimizing technique scheme, the measure that the utility model is taked also comprises:

Button is equipped with in the outer end of described push rod, and be equipped with from cage knob the outer end of described self-lock rod.

Described contact stem is made up of the body of rod of hollow and the spring in the body of rod and ball, and ball is positioned at the end of the body of rod, and contacts with described movable contact spring.

Because the utility model has been taked above-mentioned technical measures, it compared with prior art has following advantage:

1, compact conformation, simple, it is long, high, wide to have only 22mm, 25.5mm, 14.2mm respectively, and volume is minimum in like product;

2, unit for electrical property parameters height;

3, need not adopt ultrasonic bonding, manufacturing, easy for installation;

4, low cost of manufacture;

5, various forms button and can freely change from cage knob.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is that the K of Fig. 1 is to view;

Fig. 3 is the structural representation of the utility model embodiment shell;

Fig. 4 is the structural representation of the utility model embodiment pedestal;

Fig. 5 is that the A-A of Fig. 4 is to view.

Embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

With reference to accompanying drawing, the utility model comprises the shell 16 of a rectangle, and shell 16 has mutually perpendicular under shed 10 and side opening 9.10 places are equipped with pedestal 11 under shed, pedestal 11 sealing under sheds 10.Pedestal 11 is connected by the connecting hole 20 on the shell 16 at the junction button on the pedestal 11 8 and under shed 10 places and is fixed on the shell 16.In the enclosure, the both sides of the demarcation strip 15 on the pedestal are equipped with static contact 13 and movable contact spring support 12 respectively, and movable contact spring 14 is housed on the movable contact spring support 12, and demarcation strip 15 is separated the static contact 13 and the movable contact spring 14 of the two poles of the earth (for example positive pole and negative pole).The push rod 3 that can move along push rod axis 19 directions is installed at side opening 9 places, and button 1 is equipped with in the outer end of push rod 3.Between push rod 3 and shell 16, push rod back-moving spring 4 is housed, on push rod 3, be fixed with two contact stem 6 of stirring two movable contact springs 14 respectively, the body of rod 6 of contact stem 6 hollows and the spring 5 in the body of rod 6 and ball 7 are formed, and ball 7 is positioned at the end of the body of rod 6, and contacts with movable contact spring 14.Self-lock rod 17 in the self-locking grooves 2 that can snap in push rod 3 sides is housed on the shell 16 of push rod 3 sides, and be equipped with from cage knob 18 outer end of self-lock rod 17.

Press button 1 and promote push rod 3, push rod 3 drive contact stem 6 are stirred the movable contact spring 14 of the two poles of the earth (for example positive pole and negative pole) with static contact 13 and are engaged, and electric current is by static contact 13,

movable contact spring

14 and 12 conductings of movable contact spring support.At this moment, press from cage knob 18, self-lock rod 17 snaps in the self-locking grooves 2 of push rod 3 sides, and switch keeps conducting state.Press button 1 again No. one time, self-lock rod 17 is being upspring under the effect of cage knob back-moving spring (not drawing among the figure), withdraws from self-locking grooves 2, and push rod 3 is return under the effect of push rod back-moving spring 4, and contact stem 6 is stirred movable contact spring 14 with static contact 13 and broken away from, and electric current disconnects.

Claims

1. appliance switch, comprise a rectangular enclosure (16), it is characterized in that: described shell (16) has mutually perpendicular under shed (10) and side opening (9), locate to be equipped with pedestal (11) under shed (10), described pedestal (11) sealing under shed (10), pedestal (11) is connected with connecting hole (20) on the shell (16) that under shed (10) is located by the junction button (8) on the pedestal (11), pedestal (11) in described shell (16) the upward both sides of demarcation strip (15) is equipped with static contact (13) and movable contact spring support (12) respectively, movable contact spring (14) is housed on the movable contact spring support (12), locate to be equipped with the push rod (3) that can move along push rod axis (19) direction at side opening (9), between push rod (3) and shell (16), push rod back-moving spring (4) is housed, on push rod (3), be fixed with two contact stem (6) of stirring movable contact spring (14), the self-lock rod (17) in the self-locking grooves (2) that can snap in push rod (3) side is housed on the shell (16) of push rod (3) side.

2. appliance switch according to claim 1 is characterized in that: button (1) is equipped with in the outer end of described push rod (3), and be equipped with from cage knob (18) outer end of described self-lock rod (17).

3. appliance switch according to claim 1, it is characterized in that: described contact stem (6) is made up of the body of rod (6) of hollow and the spring (5) in the body of rod (6) and ball (7), ball (7) is positioned at the end of the body of rod (6), and contacts with described movable contact spring (14).