CN202373477U

CN202373477U - Switch for anti-theft device

Info

Publication number: CN202373477U
Application number: CN2011204809233U
Authority: CN
Inventors: 赵永余; 胡寿金; 徐良刚; 陈华迪; 李世慧
Original assignee: WENZHOU LIYANG ELECTRONICS CO Ltd
Current assignee: WENZHOU LIYANG ELECTRONICS CO Ltd
Priority date: 2011-11-28
Filing date: 2011-11-28
Publication date: 2012-08-08
Anticipated expiration: 2021-11-28

Abstract

The utility model relates to a switch for an anti-theft device. The switch for the anti-theft device comprises a base, wherein the base is provided with an inner cavity which is provided with an upward opening, a strip-type side opening is arranged at the front side wall of the inner cavity, an opening which is used for installing a spring fixing platform is arranged at the upper part of the rear side wall of the inner cavity, hooks are arranged at the outer side surfaces of the left side wall and the right side wall of the inner cavity, a first conductive terminal and a second conductive terminal are embedded into the bottom surface of the base by adopting an integrated injection molding technology, a handle is arranged in the inner cavity, the rear end surface of the handle are provided with a spring locating post and a movable contact spring installing convex plate, which are opposite to the spring fixing platform, from up to bottom, one end of the spring is fixedly arranged on the spring fixing table, the other end of the spring is sleeved on the spring locating post, a movable contact spring which is provided with double contact points and is of a U-shaped structure is arranged at the bottom surface of the movable contact spring installing convex plate, a cover is provided with hanging platforms which are matched with the hooks, and the hooks are buckled on the hanging platforms on the base. The switch for the anti-theft device, disclosed by the utility model, is compact, small in size and simple and convenient in assembly, can be used for the circuit conversion in a supermarket anti-theft device, and can be used for the circuit conversion in other electronic devices.

Description

A kind of anti-theft device is used switch

Technical field

The utility model relates to switch, is that a kind of anti-theft device is used switch specifically.

Background technology

The switch great majority that adopted in the article anti-theft device of supermarket at present are unenclosed construction, this structure one be in assembling process since between part the mutual alignment relation be difficult to fix, therefore assemble complicacy and efficient is low, the switch contact reliability is poor; The 2nd, be subject to such environmental effects, because switch exposes in the air, the switch contact-making surface is prone to produce oxidation, airborne in addition dust is prone to be adsorbed on the contact-making surface, so the switch contact reliability reduces greatly, causes that very easily anti-theft device lost efficacy.In addition, though the switch of some enclosed constructions is also arranged, because its volume is bigger, so the scope of application is restricted.

The utility model content

To the defective that exists in the prior art, the purpose of the utility model is to provide a kind of anti-theft device to use switch, solves in the article anti-theft device of supermarket that the switch assembly difficulty is big, contact reliability difference and the restricted problem of the scope of application.

For reaching above purpose, the technical scheme that the utility model is taked is:

A kind of anti-theft device is used switch, it is characterized in that, comprising: the pedestal 1 that adopts nylon material to process, and it has the inner chamber that an opening makes progress,

The front side wall of inner chamber is provided with a bar shaped side opening 9, and said bar shaped side opening 9 is communicated with inner chamber,

The rear wall top of inner chamber is provided with an opening that is used for mounting spring fixed station 24,

The lateral surface of the left and right sides sidewall of inner chamber is provided with hook 8,

Two first conducting terminals 4 and two second conducting terminals 5 adopt the integral molded plastic moulding processs to be bumped into the bottom surface of pedestal 1, and the end face of first conducting terminal 4 and second conducting terminal 5 is exposed in the inner chamber,

Handle 2 is located in the inner chamber, and the handle touch pole 21 of being located at handle 2 front end faces stretches out pedestal 1 from bar shaped side opening 9,

Handle 2 rear end faces are provided with spring reference column 22, the movable contact spring installation base 23 relative with spring fixed station 24 from top to bottom,

Spring 6 one ends are fixed on the spring fixed station 24, and the other end is sleeved on the spring reference column 22, and said spring 6 is used for automatically reseting of handle 2,

The bottom surface of said movable contact spring installation base 23 is provided with and is used to install and the fixing movable contact spring holddown groove of movable contact spring 7,

The contact of said movable contact spring 7 is the U-shaped structure of double-contact,

The lid 3 that adopts metal material to process is provided with the hanging platform adaptive with hook 8, and hook 8 is buckled in and makes the opening sealing of inner chamber in the hanging platform on the pedestal 3.

On the basis of technique scheme, said first conducting terminal 4 and second conducting terminal 5 are in the both sides of the bottom surface of pedestal 1 respectively,

Be separated by by the nylon material of pedestal 1 between first conducting terminal 4 and second conducting terminal 5,

First conducting terminal 4 is connected with two contacts of movable contact spring 7 respectively with the end face that second conducting terminal 5 is in the inner chamber, and outside external part is used to connect the warning device circuit.

On the basis of technique scheme, movable contact spring 7 is under the positive pressure of lid 3, with first conducting

terminal

4 and 5 conductings of second conducting terminal.

On the basis of technique scheme, the switch impulse stroke is at 0.7～1.2mm.

The described anti-theft device of the utility model is used switch, and simple in structure, compactness and volume are little, saves the space, assemble easyly, can be used for the conversion of circuit in the supermarket anti-theft device, and the while also can be used for other electronic equipment and make circuit conversion.

The described anti-theft device of the utility model is used switch, and the pedestal and first conducting terminal and second are led terminal and adopted the integral molded plastic moulding process, so compact conformation and volume are little; Movable contact spring adopts the U-shaped structure of double-contact, and the switch contact is reliable, compact conformation, volume are little, has solved well that assembly difficulty is big, contact reliability difference and the restricted problem of the scope of application.

Description of drawings

The utility model has following accompanying drawing:

Fig. 1 anti-theft device is with the stereogram of switch,

Fig. 2 anti-theft device is with the profile of switch,

Fig. 3 movable contact spring structural representation,

Fig. 4 impulse stroke sketch map.

Embodiment

Below in conjunction with accompanying drawing the utility model is done further explain.

Like Fig. 1, shown in 2, the described anti-theft device of the utility model is used switch, comprising:

The pedestal 1 that adopts nylon material to process, it has the inner chamber that an opening makes progress,

Spring 6 one ends are fixed on the spring fixed station 24, and the other end is sleeved on the spring reference column 22, and said spring 6 is used for automatically reseting of handle 2, adopt the stainless steel material coiling to form, handle reciprocating motion, thereby the break-make of realization switching circuit, and referring to Fig. 4,

The contact of said movable contact spring 7 is the U-shaped structure of double-contact, referring to Fig. 3, adopts the high elastic modulus alloy material to process, and volume is little, and contact is reliable;

On the basis of technique scheme; Said first conducting terminal 4 and second conducting terminal 5 are in the both sides of the bottom surface of pedestal 1 respectively; That is: said two the first conducting terminals 4 symmetrical front sides of being located at inner chamber, said two second conducting terminals, the 5 symmetrical rear sides of being located at inner chamber

The described anti-theft device of the utility model is following with the switch course of work, referring to Fig. 4:

Movable contact spring 7 is under the positive pressure of lid 3; With first conducting

terminal

4 and 5 conductings of second conducting terminal; This moment, handle 2 was in initial position, when handle touch pole 21 applied thrusts to handle 2 front end faces, when handle is done rectilinear motion to impulse stroke of setting and total travel; Movable contact spring 7 one terminal contacts break away from first conducting terminal, 4, the first conducting terminals 4 and second conducting terminal 5 breaks off; It gets back to initial position after the handle forces.The switch impulse stroke is at 0.7～1.2mm.The switch total travel is 2.4mm.

The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of under the enlightenment of the utility model, making, every with the utlity model has identical or close technical scheme, all fall within the protection range of the utility model.

The content of not doing in this specification to describe in detail belongs to this area professional and technical personnel's known prior art.

Claims

1. an anti-theft device is used switch, it is characterized in that, comprising: the pedestal (1) that adopts nylon material to process, and it has the inner chamber that an opening makes progress,

The front side wall of inner chamber is provided with a bar shaped side opening (9), and said bar shaped side opening (9) is communicated with inner chamber,

The rear wall top of inner chamber is provided with an opening that is used for mounting spring fixed station (24),

The lateral surface of the left and right sides sidewall of inner chamber is provided with hook (8),

Two first conducting terminals (4) and two second conducting terminals (5) adopt the integral molded plastic moulding process to be bumped into the bottom surface of pedestal (1), and the end face of first conducting terminal (4) and second conducting terminal (5) is exposed in the inner chamber,

Handle (2) is located in the inner chamber, and the handle touch pole (21) of being located at handle (2) front end face stretches out pedestal (1) from bar shaped side opening (9),

Handle (2) rear end face is provided with the spring reference column (22) relative with spring fixed station (24), movable contact spring installation base (23) from top to bottom,

Spring (6) one ends are fixed on the spring fixed station (24), and the other end is sleeved on the spring reference column (22), and said spring (6) is used for automatically reseting of handle (2),

The bottom surface of said movable contact spring installation base (23) is provided with and is used for installing and the fixing movable contact spring holddown groove of movable contact spring (7),

The contact of said movable contact spring (7) is the U-shaped structure of double-contact,

The lid (3) that adopts metal material to process is provided with and the adaptive hanging platform of hook (8), and hook (8) is buckled in and makes the opening of inner chamber seal in the hanging platform on the pedestal (3).

2. anti-theft device as claimed in claim 1 is used switch, it is characterized in that: said first conducting terminal (4) and second conducting terminal (5) are in the both sides of the bottom surface of pedestal (1) respectively,

Be separated by by the nylon material of pedestal (1) between first conducting terminal (4) and second conducting terminal (5),

First conducting terminal (4) is connected with two contacts of movable contact spring (7) respectively with the end face that second conducting terminal (5) is in the inner chamber, and outside external part is used to connect the warning device circuit.

3. anti-theft device as claimed in claim 2 is used switch, it is characterized in that: movable contact spring (7) is under the positive pressure of lid (3), with first conducting terminal (4) and second conducting terminal (5) conducting.

4. anti-theft device as claimed in claim 2 is used switch, it is characterized in that: the switch impulse stroke is at 0.7～1.2mm.