CN2174742Y - Anti malpractice device for coin chute of vending machine - Google Patents

Abstract

The utility model relates to an anti malpractice device for a coin chute of a vending machine, which is mainly composed of a coin insertion seat and a control circuit, wherein, the coin insertion seat is respectively provided with a coin insertion slot, a coin inlet and a coin outlet which are communicated with each other, and a gate relay is also arranged on the coin insertion seat to control passages between the coin insertion slot and the coin inlet or between the coin insertion slot and the coin outlet. After the coin connected with a pull thread at the back end is inserted and the coin passes through a gate piece arranged on the gate relay, the gate piece can not restore as long as the back end of the coin is connected with the pull thread; at the moment, coin insertion operation can not be completed via the control circuit by the gate piece, so evil men can not grift goods in the coin insertion method.

Description

Anti malpractice device for coin chute of vending machine

The utility model relates to a kind of vending machine coin chute anti malpractice device, it mainly is to form the coin slot that communicates respectively at a coin inserting base, coin feeding hole and coin refund, and control the keying of its passage with a gate relay, will be when coin drops into via induction, the gate sheet of gate relay is opened, and make coin be passed through coin feeding hole, just connect backguy in the coin rear end, then this backguy will make the gate sheet restore, and will be through a control circuit by card gate sheet only, make vending machine can't finish transaction, obtain goods by cheating with lawbreaking activities so as to preventing bad person or the people who covets a little.

Continuous progress along with the epoch, people's life style is also in constantly changing, this kind variation tendency also directly influences people's consumption pattern, for example common people get used to face-to-face transaction form of bartering with silver more in the past, even to this day, this kind method of commerce is the unique channel of non-consumer shopping goods, as mail-order, equipment such as automatic vending machine, all make present people's consumption pattern more become easy to be simple, wherein the convenience degree of automatic vending machine (vending machine) is better than other all kinds consumption modes especially, and on the consumption market, cause in fashion, and the convenience of automatic vending machine is unquestionable, only for the shop, also non-have no risk, except that artificial malicious sabotage, unworthy person is with counterfeit money, it is also of common occurrence that token is obtained the facts of commodity by cheating, generation for anti-this type of thing of Du, at present on the coin-feed machine of vending machine, be provided with device for identifying more, the recognizable true and false that inserts coin, this measure is former can effectively to solve the above-mentioned commodity problem of obtaining by cheating, yet the high chi in road, evil spirit is high one zhang, and these coin device for identifying are found out the road that cracks again, and it mainly is to connect backguy in the genuine note rear end, when the genuine note input by identification, and after finishing the action of inserting coins, promptly by by this stay cord the genuine note that drops into being retracted, this moment, not only commodity were in one's hands, and coin is also returned, and obtains the loss that mode will cause the shop by cheating by these.

Fundamental purpose of the present utility model is: a kind of vending machine coin chute anti malpractice device is provided, it mainly is to form coin slot, coin feeding hole and the coin refund that communicates respectively at a coin inserting base, and control the keying of its passage with a gate relay, will be when coin drops into via induction, the gate sheet of gate relay is opened, and make coin must pass through coin feeding hole, as connect backguy in the coin rear end, then this backguy will make the gate sheet restore, and will be through a control circuit by card gate sheet only, make vending machine can't finish transaction, prevent that whereby unworthy person from obtaining commodity by cheating.

The utility model provides a kind of vending machine coin chute anti malpractice device, it mainly is made up of a coin inserting base and a control circuit, one end is formed with a coin slot and coin refund up and down respectively to this coin inserting base in the outside, its place, bottom is formed with a coin feeding hole, wherein coin slot, coin refund and coin feeding hole are respectively at forming interconnected passage in the coin inserting base, control circuit is made up of an inductive coil, oscillatory circuit, half-wave voltage-multiplying circuit, comparator circuit, first driving circuit, second driving circuit, circuit for detecting and reset circuit again, wherein:

Be provided with a gate relay in each passage intersection on this coin inserting base, be provided with electromagnet in this gate relay, its bottom then is provided with a gate sheet, and this gate sheet one end is the catch in L shaped cross section, the passage that stops coin feeding hole, the catch inboard is formed with an anti-dazzling screen and perforation in addition respectively again;

This control circuit mainly is to be connected to an oscillatory circuit with inductive coil one end again, and this output end of oscillating circuit is connected on the comparator circuit through a voltage-multiplying circuit again, and this comparator circuit is made up of the upper limit, lower limit comparer and another comparer, wherein

The negative input of upper limit comparer is to be connected with the voltage-multiplying circuit output terminal, and its positive input then connects a upper limit reference voltage, and its output terminal is the input end that is connected to first driving circuit;

The input of the negative of lower limit comparer is connected with a lower limit reference voltage again, and its positive input also is connected to the output terminal of voltage-multiplying circuit, and its output terminal then is connected to the replacement end of first driving circuit;

The negative input of another comparer is the indirect line end that is connected in two substitutional resistances, and its positive input still is connected in the voltage-multiplying circuit output terminal, and its output terminal then is connected to the input end of second driving circuit;

The output terminal of this first driving circuit is to see through transistor (electric crystal) to be connected on the electromagnet of gate relay, its end of resetting is connected to the output terminal of a reset circuit and a comparer respectively again, the negative terminal input of this comparer is connected with a photoresistance, and the coin feeding hole place of coin inserting base then is located in this photoresistance;

This circuit for detecting mainly connects two transistor respectively by photo-coupler and is formed, wherein the transistorized collector in rear end is the input end that is connected to second driving circuit, and the anti-dazzling screen on the gate sheet is suitable corresponding between photo-coupler, when the gate relay is excitatory, but the light source of the suitable shield light coupling mechanism of this anti-dazzling screen;

This reset circuit is to be connected on the replacement end of first driving circuit with a photoresistance lease making transistor and diode, and wherein photoresistance is that correspondence is arranged in the perforation of gate sheet.

Vending machine coin chute anti malpractice device of the present utility model has reasonable in design, and compact conformation and dependable performance can prevent the behavior of obtaining goods by cheating that bad person or the people who covets a little are illegal in actual applications.

Further specify architectural feature of the present utility model below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is an exploded view of the present utility model.

Fig. 2 is a floor map of the present utility model.

Fig. 3 is the cut-open view of the utility model gate relay.

Fig. 4 is a circuit structure diagram of the present utility model.

Fig. 5 is an action synoptic diagram of the present utility model.

Mainly are made up of structure and circuit two major parts by the utility model, wherein partly are mainly a coin inserting base 10 in structure, its detailed structure sees also shown in Figure 1, and it mainly is the plates of a sandwich-type.In addition, one end is formed with a coin slot 11 and coin refund 12 up and down respectively to coin inserting base 10 in the outside, be formed with a coin feeding hole 13 in its place, bottom again, wherein coin slot 11, coin refund 12 and coin feeding hole 13 are respectively at forming interconnected passage 110 in the coin inserting base 10,120,130(please cooperate consult shown in Figure 2), again on the coin inserting base 10 in each passage 110,120,130 intersections form a notch 14, these notch 14 outsides are provided with a gate relay 20, this gate relay 20 mainly be in a box type body, be provided with an electromagnet 23(please cooperate consult shown in Figure 3), the its rear wall bottom is formed with a caulking groove 21 again, its bottom is provided with a gate sheet 22 again, these gate sheet 22 1 ends are formed with the catch 223 in L shaped cross section, catch 223 inboards are formed with the anti-dazzling screen 224 and a perforation 225 of a projection again respectively, wherein this catch 223 is to embed in the notch 14, under the normality, to stop the passage 130 that leads to coin feeding hole 13, make throwing, coin refund 11,12 passage 110,120 form intercommunication, gate sheet 22 holds both sides to be formed with recess 220 in addition again, centre then is formed with lug 221, wherein the recess 220 of both sides is to be embedded on the both sides cell wall of this caulking groove 21, be arranged with a spring 222 again on the lug 221, spring 222 end in addition then is sheathed on the projection 101 of coin inserting base 10 corresponding positions formation, when the electromagnet in the gate relay 20 23 be energized excitatory after, to attract gate sheet 22 upwards, and make the catch 223 of one end break away from notches 14, and will connect the passage 130 of 13 of coin slot 11 and coin feeding holes;

In addition, coin inserting base 10 sidewalls are formed with another notch 15 corresponding to coin slot 11 inboard places, and this notch 15 is provided with an inductive coil 16, and 16 of this inductive coils are connected with on a wiring board 17, and be connected with control circuit on it, the details of the particular circuit configurations of this control circuit as shown in Figure 4:

It mainly is made up of an oscillatory circuit 40, a half-wave voltage-multiplying circuit 47, a comparator circuit 60, first driving circuit 70, second driving circuit 30, reset circuit 50 and a circuit for detecting 80, wherein is connected with this inductive coil 16 between oscillatory circuit 40 and power end;

This oscillatory circuit 40 mainly is to connect electric capacity 46, resistance 42,43, another electric capacity 44 and resistance 45 on the base stage of a transistor 41 and emitter respectively, wherein the terminated line point in addition of resistance 42 electric capacity 44 is to be connected on the inductive coil 16, the base of transistor 41, collector are connected to respectively on inductive coil 16 primary and secondary again, its collector is connected to again on this voltage-multiplying circuit 47, and these voltage-multiplying circuit 47 output terminals are connected to again on the comparator circuit 60;

This comparator circuit 60 mainly is by three comparers 61,62,63 form, one comparer 61 is a upper limit comparer, its negative input is to be connected with voltage-multiplying circuit 47, its positive is input as a upper limit reference voltage TP2, its output terminal then is connected to the input end of one first driving circuit 70, first driving circuit 70 mainly is to be made of the integrated circuit of numbering CD4098, another comparer 62 is the lower limit comparer again, its negative is input as a lower limit reference voltage TP3, its positive input also is connected to the output terminal of voltage-multiplying circuit 47, the output terminal of comparer 62 then is connected to the replacement end (RESET) of first driving circuit 70, the input of comparer 63 negatives is to be connected in two substitutional resistances 64 again, 64 terminals, the positive input still is the input end of voltage-multiplying circuit 47, its output terminal then is connected to the input end of second driving circuit 30, two comparers 61 wherein, on on 62, the lower limit reference voltage is that the inductance value according to nickel coin sets, meaning is promptly detectd for the coin in this voltage range, all will be regarded as genuine note, as be higher than this upper limit reference voltage or be lower than the lower limit reference voltage, to be regarded as counterfeit money and handle, 63 of comparers are preventing that the thieves or robbers who act under cover of night (bad person) from deceiving people with jeton again;

The output terminal of first driving circuit 70 then is connected to the negative terminal input of input end and another comparer 54 of second driving circuit 30 again, and be connected on the electromagnet of above-mentioned gate relay 20 through an electric crystal 71, wherein this comparer 54 negative terminals input is connected with a photoresistance 55 again;

This second driving circuit 30 also is made of the integrated circuit of numbering CD4098 again, its positive and negative phase output terminal then switches switch 33 through a transistor 31,32 and respectively and is connected, can select executive circuit with noble potential or electronegative potential triggering following by means of this change-over switch 33.

This circuit for detecting 80 mainly is made up of photo-coupler 81 and two transistor 82,83 in addition, wherein the collector of a transistor 83 is to be connected on the input end of second driving circuit 30, wherein the anti-dazzling screen 224 on the gate sheet 22 is that correspondence is positioned at 81 of photo-couplers, when the electromagnet 23 of gate relay 20 is excitatory, gate sheet 22 is upwards attracted, anti-dazzling screen 224 on it is the light source of shield light coupling mechanism 81 simultaneously, makes circuit for detecting 80 produce a detection signal.

This reset circuit 50 mainly is through a transistor 52 with a photoresistance 51 again, diode 53 is connected to the replacement end of first driving circuit 70, wherein photoresistance 51 is that correspondence is arranged in the perforation 225 of gate relay 20 upper lock gate sheets 22, when gate relay 20 catch 223 excitatory and attraction gate sheet 22 break away from notches 14, coin is before passing through coin feeding hole 13, light source with photoresistance 51 in the blocking perforation 225, make photoresistance 51 ground connection, and make electric crystal 52 conductings, so the replacement end of first driving circuit 70 will be electronegative potential, first driving circuit 70 promptly is reset, its output terminal changes electronegative potential immediately into, and gate relay 20 is quit work, its gate sheet 22 is promptly restored to the original state, and the catch 223 on it is also replied block on notch 14.

Can find out concrete structure of the present utility model by above-mentioned explanation, at first please cooperate as for its manner of execution and to consult Fig. 4, shown in Figure 5, when coin C when the coin slot 11 of coin inserting base 10 drops into, to be responded to by inductive coil set on it 16, after this inductive coil 16 is subjected to the coin induction, to on oscillatory circuit 40, produce an oscillation signal, and export voltage-multiplying circuit 47 to through the collection utmost point of transistor 41, after voltage-multiplying circuit 50 is done the signal amplification, export two comparers 61 of comparator circuit 60 respectively to, on 62, when input signal is lower than upper limit reference voltage, only when being higher than the lower limit reference voltage, expression inserts coin and is genuine note, so comparer 61 is output as noble potential and triggers first driving circuit 70 according to this, this moment first, driving circuit 70 drove gate relay 20, make its gate sheet 22 break away from notch 14, and the passage 110 of connection coin slot 11 and coin feeding hole 13,130, so coin C can lead to coin feeding hole 13, as coin C during by photoresistance 51, to interdict its light source, and thereby make the gate sheet 22 of gate relay 20 return to original state, treat that coin C is by behind the coin feeding hole 13, to interdict the light source of photoresistance 55 again, so make the negative terminal input grounding of comparer 54, its terminal voltage is about to transport to the input end of second driving circuit 30, make the output terminal of second driving circuit 30 export a signal to change-over switch 33, so that the trigger signals of vending machine subsequent action to be provided;

Only connect the backguy (L) of metal or other materials in the coin C rear end of dropping into, then this gate sheet 22 will can't restore because of stopping of backguy (L), and the anti-dazzling screen 224 on it will continue to interdict the light source of photo-coupler 81 on the circuit for detecting 80, transistor 82 on this circuit for detecting 80,83 conductings in succession, make the input end of second driving circuit 30 form electronegative potential, allow its output terminal also be failure to actuate, be the unexpected commodity of being obtained by cheating, even this moment, coin C was by coin feeding hole 13, and blocking photoresistance 55, only transistor 83 ground connection have been seen through because of second driving circuit, 30 input ends, its output terminal is attonity still, connects the swindle thing of backguy with coin so can prevent the bad person fully.

Claims (1)

1, a kind of vending machine coin chute anti malpractice device, it mainly is made up of a coin inserting base and a control circuit, one end is formed with a coin slot and coin refund up and down respectively to this coin inserting base in the outside, its place, bottom is formed with a coin feeding hole, wherein coin slot, coin refund and coin feeding hole are respectively at forming interconnected passage in the coin inserting base, control circuit is made up of an inductive coil, oscillatory circuit, half-wave voltage-multiplying circuit, comparator circuit, first driving circuit, second driving circuit, circuit for detecting and reset circuit again, it is characterized in that:

Be provided with a gate relay in each passage intersection on this coin inserting base, be provided with electromagnet in this gate relay, its bottom then is provided with a gate sheet, and this gate sheet one end is the catch in L shaped cross section, the passage that stops coin feeding hole, the catch inboard is formed with an anti-dazzling screen and perforation in addition respectively again;

This control circuit mainly is to be connected to an oscillatory circuit with inductive coil one end again, and this output end of oscillating circuit is connected on the comparator circuit through a voltage-multiplying circuit again, and this comparator circuit is made up of the upper limit, lower limit comparer and another comparer, wherein

The negative input of upper limit comparer is to be connected with the voltage-multiplying circuit output terminal, and its positive input then connects a upper limit reference voltage, and its output terminal is the input end that is connected to first driving circuit;

The input of the negative of lower limit comparer is connected with a lower limit reference voltage again, and its positive input also is connected to the output terminal of voltage-multiplying circuit, and its output terminal then is connected to the replacement end of first driving circuit; The negative input of another comparer is the indirect line end that is connected in two substitutional resistances, and its positive input still is connected in the voltage-multiplying circuit output terminal, and its output terminal then is connected to the input end of second driving circuit;

The output terminal of this first driving circuit is to see through transistor to be connected on the electromagnet of gate relay, its end of resetting is connected to the output terminal of a reset circuit and a comparer respectively again, the negative terminal input of this comparer is connected with a photoresistance, and the coin feeding hole place of coin inserting base then is located in this photoresistance;

This circuit for detecting mainly connects two transistor respectively by photo-coupler and is formed, wherein the transistorized collector in rear end is the input end that is connected to second driving circuit, and the anti-dazzling screen on the gate sheet is suitable corresponding between photo-coupler, when the gate relay is excitatory, but the light source of the suitable shield light coupling mechanism of this anti-dazzling screen;

This reset circuit is to be connected on the replacement end of first driving circuit with a photoresistance lease making transistor and diode, and wherein photoresistance is that correspondence is arranged in the perforation of gate sheet.

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