CN2916790Y

CN2916790Y - Anti-theft fastener for merchandise

Info

Publication number: CN2916790Y
Application number: CN 200620102894
Authority: CN
Inventors: 赵劲松
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-20
Filing date: 2006-04-20
Publication date: 2007-06-27
Anticipated expiration: 2016-04-20

Abstract

The utility model discloses a commodity theft prevention button, which comprises a shell which is composed of an upper and a lower shell body. A locking mechanism comprising a steel pin and a leaf spring is positioned inside the hollow cavity of the shell; a theft prevention magnetic component is composed of a magnetic piece and a magnetic bar; the steel pin is inserted to the commodity throughout the through hole of upper and lower shell bodies and is locked by the leaf spring to lock the commodity tightly; an opening for opening up the locking mechanism is also positioned on the shell. The cashier in department shop can, with the help of specialized lock opening device, push the leaf spring via the arc passage inside the shell, so that the leaf spring can reduce its engagement with the steel pin and thus removing the locking; if the cashier does not remove the lock, when the commodity is brought out without approval, a probe with alarming function alarms, so that the commodity can be protected from theft. The utility model has the advantages of small and simple structure, easy fabrication, convenient assembly, low cost and long service life.

Description

The commodity anti-theft button

Technical field

The utility model relates to a kind of antitheft button, especially a kind of commodity anti-theft button.

Background technology

Along with improving constantly of living standard, open shopping way is more and more liked by people, open shopping such as supermarket, megastore also gets more and more, therefore, also be widely used in clothes shop, electrical equipment commodity shop, library, bookstore, mobile phone shop, optician's shop or the like and other retail trade shop as a kind of stolen means of commodity of taking precautions against.Antitheft button has another name called anti-theft tag or hard label, for commodity anti-theft designs, be that a kind of a kind of firm survivable mode of passing through durable, that volume is small and exquisite invests on the commodity, prevent the stolen purpose of commodity thereby reach, this antitheft button can only be opened and take off with the special use device that undoes the lock by the market cashier, if without the commodity that take off antitheft button, will trigger in the exit, market and report to the police.The antitheft button of present domestic widespread use mainly by shell, be disposed at latch mechanism in the shell and anti-theft magnetic assembly etc. and form, and latch mechanism comprises the draw point of locking usefulness, along this draw point axially dispose steel bowl, steel ball seat, compression spring successively, configuration clamps steel ball that draw point uses or the like in the steel ball seat, this mechanism is complex structure not only, the manufacturing cost height, and assembling is very difficult.

Summary of the invention

Goal of the invention of the present utility model all provide in the defective that overcomes prior art a kind of simple in structure, be convenient to assemble, commodity anti-theft button cheap for manufacturing cost.

Goal of the invention of the present utility model is achieved through the following technical solutions.

A kind of commodity anti-theft button, it comprises by upper shell, lower house and forms the shell that forms hollow cavity, described shell is provided with from the through hole of upper shell to the lower house extension, is provided with the draw point that is connected one with the pin cap of forming latch mechanism in order to the protection commodity in described through hole; Be provided with the anti-theft magnetic assembly of forming by magnetic pool sheet and magnetic stripe in the hollow cavity of described shell; Also be provided with the opening of opening latch mechanism for the device that undoes the lock on the described shell; It is characterized in that described latch mechanism comprises also and the match spring leaf of interlock of draw point that this spring leaf one end is positioned and is installed in lower housing cavity, the other end is free shape.

The spring leaf of described latch mechanism is provided with the circular hole that both-side opening does not seal, and described draw point is provided with 3 sections annular grooves, and annular groove on the draw point and the circular hole on the spring leaf match interlock and lock.

Described spring leaf one end is provided with slotted hole, and this slotted hole is fitted on the oval boss of lower house.

Opening on the described shell is located on the lower house, and opening end in the lower house forms arcuate channel, is provided with the guiding blend stop on this arcuate channel.

Two magnetic pool sheets of described anti-theft magnetic assembly are located in the groove that the upper shell inner chamber surrounds by raised line, and two opposite side respectively have a protruding button on this groove raised line, and with the magnetic stripe seat that has breach spiral-lock mutually, magnetic stripe is located at magnetic stripe seat inner cavity and lower house again at interior the end.

Compared with prior art, the utility model is improved to the latch mechanism of antitheft button by draw point and spring leaf to be formed, utilization is to the appropriate design of spring leaf shape and its elastic characteristic, removes the purpose that spring leaf reaches the locking commodity to the interlock of draw point and elastic recovery and removes locking by the device that undoes the lock of special use, thereby reaches antitheft purpose, its structure is small and exquisite and very simple, make easily, assembling is easy to, so manufacturing cost is very low, parts depreciation is very little, and prolong serviceable life.

Description of drawings

Fig. 1 is the utility model contour structures synoptic diagram.

Fig. 2 overlooks the contour structures synoptic diagram for Fig. 1's.

Fig. 3 is the A-A revolved sectional view of Fig. 2.

Fig. 4 is the B-B cut-open view of Fig. 2.

Fig. 5 is the plan structure synoptic diagram that sheds behind the above part of upper shell.

Fig. 6 is a spring leaf plan structure synoptic diagram.

Fig. 7 is the spring leaf perspective view.

Embodiment

Below in conjunction with above-mentioned accompanying drawing the utility model embodiment is described in detail again.

Shown in Fig. 1～7, the commodity anti-theft button comprises upper shell 1 and lower house 2 by the engineering plastics injection mo(u)lding, and the periphery at upper and lower shell body structure place has the chimb and the groove of phase setting-in, both are connected into integral body with supersonic welding in back, setting-in location, form the shell of hollow cavity.

Shell is provided with the through hole that extends to lower house from upper shell, and hollow cavity is provided with the latch mechanism and the anti-theft magnetic assembly of protection commodity.Latch mechanism is by forming with the draw point 6 and the spring leaf 7 of pin cap 3 pressure injection one.Draw point inserts in the through hole of upper and lower casing, press commodity thickness needs, be processed with 3 sections annular grooves 8 on the draw point, the circular hole 15 that this annular groove and spring leaf both-side opening the do not seal interlock that matches constitutes locking to commodity, it is empty thoroughly that spring leaf does not seal the circular hole both sides, only the very thin crimp thin slice 17 with bending 18 links to each other, is rich in certain elasticity, it is located at lower house 2 inner chambers, slotted hole 16 by the one end, being positioned is installed on the oval boss 12 of lower housing cavity, is provided with the support plate 14 that bears the thrust that undoes the lock in spring leaf one side simultaneously, and the other end does not have connection and is free shape.When external force promoted, spring leaf 7 free shape one ends loosened interlock to draw point because of distortion, reach the purpose that undoes the lock.

Shell is provided with for the opening 13 of opening latch mechanism, this opening is located on the lower house 2, real is the breach of lower house, opening end in the lower house, form arcuate channel 11, on this arcuate channel, be provided with guiding blend stop 10, the device that undoes the lock is filled in along arcuate channel from opening exactly, realizes the promotion of spring leaf is reached the purpose of unblanking.

The anti-theft magnetic assembly is made up of two magnetic pool sheets 4 and magnetic stripe 4, every thick 0.03 millimeter of magnetic pool sheet, customize by the U.S., magnetic pool sheet is located in the groove that the upper shell inner chamber surrounds by the disjunctor raised line, on these groove two opposite side raised lines a protruding button is arranged respectively, with two ends breach on the magnetic stripe seat 5 spiral-lock mutually, there is inner cavity in magnetic stripe seat front, and magnetic stripe is located in magnetic stripe seat inner cavity and the lower house at the end.The vibration that magnetic pool sheet and magnetic stripe are subjected to detector electromagnetic wave influence of magnetic field can produce certain frequency.

The utility model is applied to commodity anti-theft, commodity that need are antitheft such as clothes, clothes is connected on the spring leaf 7 that is located at shell inner cavity with draw point 6, a draw point by the spring leaf interlock after, people just can't take off this antitheft button, can only utilize the special-purpose device that undoes the lock to open by the market cashier, the device that undoes the lock is filled in from shell aperture 13, act on through arcuate channel 11 and guiding blend stop 10 and to make free shape one end of spring leaf be subjected to thrust on the spring leaf 7, the spring leaf effect has after the thrust to loosen with regard to distortion removes locking to the interlock of draw point 6, and this moment, draw point can take off together with pin cap 3; Take out of without authorization without the cashier as the shopper, because the vibration that the magnetic of anti-theft magnetic assembly pool sheet 4 and magnetic stripe 9 are subjected to detector electromagnetic wave influence of magnetic field can produce certain frequency, when the detector that has warning function detected the magnetic pool sheet frequency identical with magnetic stripe, detector was promptly reported to the police.

Claims

1, a kind of commodity anti-theft button, it comprises by upper shell (1), lower house (2) and forms the shell that forms hollow cavity, described shell is provided with from the through hole of upper shell to the lower house extension, is provided with the draw point (6) that is connected one with pin cap (3) of forming latch mechanism in order to the protection commodity in described through hole; Be provided with the anti-theft magnetic assembly of forming by magnetic pool sheet (4) and magnetic stripe (9) in the hollow cavity of described shell; Also be provided with the opening (13) of opening latch mechanism for the device that undoes the lock on the described shell; It is characterized in that described latch mechanism comprises also and the match spring leaf (7) of interlock of draw point (6) that this spring leaf one end is positioned and is installed in lower house (2) inner chamber, the other end is free shape.

2, commodity anti-theft button according to claim 1, the spring leaf (7) that it is characterized in that described latch mechanism is provided with the circular hole (15) that both-side opening does not seal, described draw point is provided with 3 sections annular grooves (8), and annular groove on the draw point and the circular hole on the spring leaf match interlock and lock.

3, commodity anti-theft button according to claim 1 is characterized in that described spring leaf (7) one ends are provided with slotted hole (16), and this slotted hole is fitted on the oval boss (12) of lower house (2).

4, commodity anti-theft button according to claim 1 is characterized in that the opening (13) on the described shell is located on the lower house (2), and opening end in the lower house forms arcuate channel (11), is provided with guiding blend stop (10) on this arcuate channel.

5, according to each described commodity anti-theft button of claim 1～4, the two magnetic pool sheets (4) that it is characterized in that described anti-theft magnetic assembly are located in the groove that upper shell (1) inner chamber surrounds by raised line, two opposite side respectively have a protruding button on this groove raised line, with the magnetic stripe seat (5) that has breach spiral-lock mutually, magnetic stripe (9) is located at again in magnetic stripe seat inner cavity and the lower house at the end.