CN202615541U

CN202615541U - Electromagnetic control device for goods antitheft tag

Info

Publication number: CN202615541U
Application number: CN 201220294067
Authority: CN
Inventors: 王正强; 李灵辉; 张一鸣
Original assignee: SHANGHAI TENGRONG COMMUNICATIONS TECHNOLOGY CO LTD
Current assignee: SHANGHAI TENGRONG COMMUNICATIONS TECHNOLOGY CO LTD
Priority date: 2012-06-21
Filing date: 2012-06-21
Publication date: 2012-12-19
Anticipated expiration: 2022-06-21

Abstract

The utility model relates to an electromagnetic control device for a goods antitheft tag, which comprises a cone-shaped plastic cover, a plastic seat, a clamping device and a spring, wherein the plastic seat is buckled and connected with the plastic cover; the clamping device is arranged in the plastic cover and is formed by a steel ball frame and three steel balls; and the spring is arranged in the plastic seat. The electromagnetic control device is characterized in that in the plastic cover, electromagnetic coils are arranged between the steel balls of the clamping device and the spring; a power connection contact is arranged outside the plastic seat; and the electromagnetic coils are electrically connected with the power connection contact. The electromagnetic control device has the benefits that an external contact electrical-contact opening structure mode is changed; after the electromagnetic control device is powered on, when the electromagnetic downward suction force is greater than the upward elastic force of the spring, the steel balls are driven to move upwards and the clamping device gets loose, so that a tag nail can be easily pulled out; and when the electromagnetic control device is powered off, no electromagnetic force is generated, the steel balls are prompted to move upwards only by the upward elastic force of the spring and the clamping device is always in a clamping state, so that goods are prevented from being stolen. The electromagnetic control device has a simple structure and is convenient to use; and the antitheft safety of the goods is improved.

Description

The electromagnetic control apparatus of commodity anti-theft label

Technical field

The utility model relates to a kind of antitheft electromagnetic control apparatus of Commercial goods labels.

Background technology

Commercial goods labels anti-theft device on the existing market, pin for labels pass the label of antitheft article, and the pin for labels that inserts the plastic jacket of band tapering inserts in the hole, and adopts three steel balls on the same vertical plane that is arranged on steel ball frame axis, realizes the purpose of chucking pin for labels; When needing to take out pin for labels; Only need magnet steel to be pressed close to the steel ball frame of the inner band of anti-theft device tapering from the outside of anti-theft device; Three steel balls are imposed magnetic force, realize that through the magnetic attraction of magnet steel three steel ball machineries of chucking pin for labels are loosening, open the purpose of taking out pin for labels thereby reach.

This technology has had the sales cycle of more than ten years on market., portability little, low price and can arbitrarily buy because of the magnet steel volume that is used for the outside application of force of anti-theft device; Theftproof performance is very poor; The supermarket external staff is taken place repeatedly carry magnet and get into the supermarket and arbitrarily steal, and the label that unloads and pin for labels scatter the ground and be prone to stab client, the supermarket management difficulty is big; Materials such as employed rare earth belong to the high pollution resource, waste a large amount of Export resources, are unfavorable for environmental protection again.

Summary of the invention

The purpose of the utility model is: the defective to prior art, a kind of simple in structure, low cost of manufacture is provided, and easy to operate, the electromagnetic control apparatus of the commodity anti-theft label that theftproof performance is good.

For achieving the above object; The technical scheme of taking is: a kind of electromagnetic control apparatus of commodity anti-theft label; The spring that clamp device that is made up of steel ball frame and three steel balls in the plastic seat that comprises round table-like plastic jacket, is fastened and connected each other with said plastic jacket, the said plastic jacket and said plastic seat are built-in with; It is characterized in that: in plastic jacket; Be equipped with solenoid between the steel ball of said clamp device and the said spring, the said plastic seat outside is equipped with and connects electric contact, and said solenoid is electrically connected with the said electric contact that connects.

Said solenoid is fixedly connected with said plastic seat medial surface through coil former.

Said round table-like plastic jacket, the upper bottom surface center is equipped with the pin for labels patchhole, and bottom surface is uncovered, is the cover shape.

The beneficial effect of the utility model is, original Commercial goods labels magnet steel machinery is opened, and exists randomly, and the hidden danger of the secure context that commodity are stolen is arranged.Use external contact instead and electrically contacted the opening structure mode, but label switching electric control, and the anti-security of stealing of commodity improves.When electromagnetism downward the suction-combining force in energising back during greater than the upwards elastic force of spring, drive steel ball and move downward, unclamp clamp device, then pin for labels can easily be pulled out; During outage, non-electromagnetic-force only has the upwards elastic force of spring, impels steel ball to move upward, and clamp device is in clamped condition all the time, prevents that commodity from being stolen.Simple in structure, easy to use, improved the anti-security of stealing of commodity.

Description of drawings

Below through description of drawings and embodiment the utility model is described further.

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model user mode figure.

Among the figure, the 1-plastic seat; The 2-spring; The 3-coil former; The 4-coil; The 5-plastic jacket; The 6-clamp device; 7-pin for labels patchhole; 8-connects electric contact; The 9-pin for labels.

Embodiment

Fig. 1 is the utility model structural representation; Visible by figure; A kind of electromagnetic control apparatus of commodity anti-theft label; The spring 2 that clamp device 6 that is made up of steel ball frame and three steel balls in the plastic seat 1 that comprises round table-like plastic jacket 5, is fastened and connected each other with said plastic jacket 5, the said plastic jacket 5 and said plastic seat 1 are built-in with is characterized in that: in said plastic jacket 5, be equipped with solenoid 4 between the steel ball of said clamp device 6 and the said spring 2; Said plastic seat 1 outside is equipped with and connects electric contact 8, and said solenoid 4 is electrically connected with the said electric contact 8 that connects.

Said solenoid 4 is wound on the coil former 3, and is fixedly connected with the medial surface of plastic seat 1 through said coil former 3.

Said round table-like plastic jacket 5, the upper bottom surface center is equipped with pin for labels patchhole 7, and bottom surface is uncovered, is the cover shape.

Fig. 2 is the utility model user mode figure; When diagram is used; Pin for labels 9 passes the label of antitheft article, inserts in the pin for labels patchhole 7 at round table-like plastic jacket 5 upper bottom surface centers, because the upper bottom surface area of a circle is little, the bottom surface area of a circle is big; So three steel balls of clamp device 6 were downward when pin for labels 9 inserted, locate loosening state; When pin for labels 9 was extracted, three steel balls of clamp device 6 made progress, and folder is tight more more, and pin for labels 9 is difficult to extract, and plays the commodity anti-theft effect.Commodity normally circulate, in the time of need extracting pin for labels 9 and take off label, as long as outside said plastic seat 1 side joint electric contact 8 energized; Coil 4 energisings produce electromagnetic attraction; When suction during greater than spring force, make three steel balls unclamp clamp device 6 downwards, pin for labels 9 can easily be extracted.

The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all in the spiritual framework of the utility model, and that is done anyly is equal to replacement, modification etc., all should be included within the protection domain of the utility model.

Claims

1. the electromagnetic control apparatus of commodity anti-theft label; The spring that clamp device that is made up of steel ball frame and three steel balls in the plastic seat that comprises round table-like plastic jacket, is fastened and connected each other with said plastic jacket, the said plastic jacket and said plastic seat are built-in with; It is characterized in that: in plastic jacket; Be equipped with solenoid between the steel ball of said clamp device and the said spring, the said plastic seat outside is equipped with and connects electric contact, and said solenoid is electrically connected with the said electric contact that connects.

2. according to the electromagnetic control apparatus of the said commodity anti-theft label of claim 1, it is characterized in that: said solenoid is fixedly connected with said plastic seat medial surface through coil former.

3. according to the electromagnetic control apparatus of the said commodity anti-theft label of claim 1, it is characterized in that: said round table-like plastic jacket, the upper bottom surface center is equipped with the pin for labels patchhole, and bottom surface is uncovered, is the cover shape.