CN206572844U - Detect pallet and the refrigerator provided with the pallet - Google Patents
Detect pallet and the refrigerator provided with the pallet Download PDFInfo
- Publication number
- CN206572844U CN206572844U CN201720265979.4U CN201720265979U CN206572844U CN 206572844 U CN206572844 U CN 206572844U CN 201720265979 U CN201720265979 U CN 201720265979U CN 206572844 U CN206572844 U CN 206572844U
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- pressure sensor
- output
- tray body
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Abstract
Pallet and refrigerator provided with the pallet are detected the utility model discloses a kind of, the detection pallet includes：Tray body, for placing article；Signal projector, is connected to a power supply, for launching the signal that article in tray body changes；Pressure sensor device, for detecting Item Weight in tray body, when gravity is less than preset value, exports comparison signal；Anti-error circuit, is coupled in pressure sensor device, and a control signal is exported to the situation of change according to comparison signal in preset time；On-off circuit, is coupled in anti-error circuit, in response to control signal, to control switching between power supply and signal projector.Whether can be used up with beverage on automatic detection pallet, and can interpolate that whether beverage a variety of situations such as is unlocked, drinks, and with higher automatic decision ability, reduces the cost of manual service.
Description
Technical field
The utility model is related to a kind of provisional beverage storage device, more particularly to a kind of to detect pallet and provided with the pallet
Refrigerator.
Background technology
Current vending machine for beverage is commercially popularized, because it keeps an eye on without personnel, by buyer voluntarily
The mode of coin provides corresponding beverage to buyer.
However, in occasions such as some hotels, KTV, it is this kind of to use coin operated vending machine and do not apply to, than
Such as in KTV, when needing drinks, beverage, it is necessary to oneself calling service person of client, then waiter enters according to the demand of client
Row dispatching.Again such as in hotel, it is necessary to which cleanup crew just can know that after entering inspection after the beverage in hotel is drunk up,
So as to be supplemented and charging.Several situations above are required for putting into larger human cost, and for the experience of client
It is not very good.
Utility model content
The purpose of this utility model one is to provide a kind of detection pallet, and it can automatically be examined to the beverage being placed on it
Whether survey has been used by a person.
Above-mentioned technical purpose one of the present utility model technical scheme is that：
One kind detection pallet, it is characterized in that, including：
Tray body, for placing article；
Signal projector, is connected to a power supply, for launching the signal that article in tray body changes；
Pressure sensor device, for detecting Item Weight in tray body, when gravity is less than preset value, letter is compared in output
Number；
Anti-error circuit, is coupled in pressure sensor device, is exported to the situation of change according to comparison signal in preset time
One control signal；
On-off circuit, is coupled in the anti-error circuit, in response to control signal, to control between power supply and signal projector
Switching.
It is arranged such, beverage is placed in tray body, detected by pressure sensor device, when detects not
There is beverage or be drunk out-of-date, pressure sensor device can send comparison signal, be checked again inside anti-error circuit,
Eliminate someone and the situation that beverage takes up and puts back to is caused into false alert, after confirmation, output a control signal to switch electricity
Road, when confirming beverage using falling, signal occurs for the on-off circuit enabling signal transmitter that switches on power；Conversely, not occurring
Signal.
More preferably, the pressure sensor device includes：
Pressure sensor, for detecting Item Weight in tray body, output one detects signal；
Comparison circuit, receives the detection signal, defeated for comparing the amplitude of the detection signal and the size of preset value
Go out the comparison signal.
It is arranged such, realizes detection to beverage weight, and realizes by comparison circuit judgement.
More preferably, the comparison circuit includes：
Preset value generative circuit, output one is used for the preset value compared with the detection signal；
Comparator, its input in the same direction receives the detection signal, and reverse input end receives the preset value, and output end is defeated
Go out the comparison signal.
It is arranged such, is realized by preset value generative circuit and be manually entered preset value function, by changing preset value
Size starts weight to regulate and control it, selects to detect the beverage of different gravity with this.
More preferably：The preset value generative circuit includes first resistor and potentiometer, and one end of first resistor connects
Supply voltage is connect, the other end is connected to the movable end of the potentiometer, a fixing end of potentiometer and the reverse input of comparator
End connection, another fixing end ground connection.
It is arranged such, the resistance sizes on potentiometer is adjusted by adjusting the movable end of potentiometer, so as to adjust first
The resistance ratio of resistance and potentiometer, and then input into the input of comparator different size of comparison signal.
More preferably, the anti-error circuit includes：
Delay circuit, its input is coupled to the comparison circuit, in response to comparison signal and export one delay compare letter
Number；
With door, with two inputs and an output end, the output end of one input and delay circuit is coupled, separately
The output end coupling of one input and comparison circuit, its output end output control signal.
Be arranged such, when pressure sensor device detect beverage by by when, comparison signal input time delay circuit and with door
In one input, when in the time set in delay circuit, when comparison signal does not change, with gate output terminal output
Controlling switch circuit switches on power the delay comparison signal of enabling signal transmitter；Conversely, with gate output terminal output control switch
The delay comparison signal of circuit deenergization not enabling signal transmitter.
More preferably：The on-off circuit includes second resistance and triode, and one end of the second resistance is connected
In the output end of comparator, the other end is connected to the base stage of triode；The emitter stage of the triode is connected to signal projector,
The colelctor electrode of triode is connected to starting switch.
It is arranged such, by triode in response to delay comparison signal come the switching electricity of control signal transmitter.
More preferably：It is provided with the tray body with placing the standing groove that article is engaged, the pressure is passed
Sensor is located at the bottom of standing groove.
It is arranged such, beverage is placed by the setting of standing groove, positioning, the effect of anti-rock can be played.
More preferably：The pressure sensor is embedded at the bottom of standing groove in annular and depression.
It is arranged such, by the setting of annular pressure sensor and the annular projection of beverage bottom, to cooperation, is kept away
Exempt from customer and substitute beverage for another surreptitiously using the much the same article of some shapes, or led because article is placed on standing groove by imprudence
Cause can not judge beverage whether using falling, and causing to be supplemented in time the problem of.
The purpose of this utility model two is to provide a kind of refrigerator.
Above-mentioned technical purpose two of the present utility model technical scheme is that：
A kind of refrigerator, is provided with many described detection pallets.
In summary, the utility model has the advantages that：Whether can be used with beverage on automatic detection pallet
Fall, and can interpolate that whether beverage a variety of situations such as is unlocked, drinks, and with higher automatic decision ability, reduction is artificial
The cost of service.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment one；
Fig. 2 is the circuit theory diagrams of embodiment one；
Fig. 3 is the structural representation of embodiment two.
In figure, 1, tray body；2nd, standing groove；3rd, pressure sensor；11st, preset value generative circuit；12nd, comparison circuit；
13rd, on-off circuit；14th, anti-error circuit.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in protection domain of the present utility model by Patent Law.
Embodiment 1：One kind detection pallet, includes：
Tray body 1, as shown in figure 1, rectangular tabular, for placing article, is being provided with multiple circular put
Groove 2 is put, standing groove 2 is used to place in beverage, the present embodiment by taking aluminum canned drinks as an example, and the size of standing groove 2 is drunk slightly larger than aluminium pot
The external diameter of material, the height of standing groove 2 is 2cm.
Pressure sensor device, reference picture 2 includes pressure sensor 3 and comparison circuit 12, and pressure sensor 3 is in annulus
Shape is set, and is embedded at the bottom of standing groove 2, and pressure sensor 3 is set with the concyclic heart of standing groove 2, and where pressure sensor 3
End face is less than the bottom of standing groove 2, when beverage is placed on standing groove 2, the bossing of beverage bottom just with pressure sensing
Device 3 is contacted, and to detect Item Weight in tray body 1, output one detects signal；
Comparison circuit 12 is used for the size for the amplitude and preset value for comparing detection signal, output comparison signal, and it includes in advance
If being worth generative circuit 11 and comparator A1.Wherein, the output of preset value generative circuit 11 one is used for and presetting that detection signal is compared
Value, it includes first resistor R1 and potentiometer R2, and potentiometer R2 is a swept resistance, first resistor R1 one end connection power supply electricity
Pressure, the other end is connected to potentiometer R2 movable end, a potentiometer R2 fixing end is connected with comparator A1 reverse input end,
Another fixing end ground connection.Comparator A1 input in the same direction is connected to receive detection signal, output end output with pressure sensor 3
Comparison signal.
Anti-error circuit 14, reference picture 2, to be believed according to the control of situation of change output one of comparison signal in preset time
Number, it include delay circuit and with door, the input of delay circuit is coupled to the comparison circuit 12, in response to comparison signal simultaneously
The delay comparison signal of output one；There is two inputs and an output end with door, one input and delay circuit it is defeated
Go out end coupling, the output end of another input and comparison circuit 12 is coupled, its output end output control signal.
On-off circuit 13, reference picture 2, in response to control signal, to control between a signal projector and power supply it is logical,
It is disconnected, by launching signal projector the signal that beverage is used by a person in tray body 1.It includes second resistance R3 and three
Pole pipe Q1, the second resistance R3 one end are connected to comparator A1 output end, and the other end is connected to triode Q1 base stage；
The emitter stage of the triode Q1 is connected to signal projector, and triode Q1 colelctor electrode is connected to starting switch.
When in use, beverage is placed in the standing groove 2 in tray body 1, its bottom is connect with pressure sensor 3
Touch, now pressure sensor 3 detects the beverage being placed on pallet, that is, the amplitude of the detection signal detected, which is more than, to be preset
Value, now triode Q1 is not turned on, i.e., be not turned between signal projector and power supply.When beverage is picked up by people, that is, detect
Detect that the amplitude of signal is less than preset value, now comparison signal input time delay circuit and with an input of door, when prolonging
When circuit in time for setting, when comparison signal does not change, prolonging for enabling signal transmitter is exported with gate output terminal
When comparison signal, delay comparison signal be input in triode Q1 after cause circuit turn-on, i.e. power supply be connected with signal projector
Enabling signal transmitter transmission signal.
When in the time set in delay circuit, when comparison signal changes, i.e., beverage being placed back in into placement
When in groove 2, the delay comparison signal of enabling signal transmitter is not exported with gate output terminal.
Embodiment 2, a kind of refrigerator, as shown in figure 3, being provided with the detection pallet in multiple embodiments one.
Claims (9)
1. one kind detection pallet, it is characterized in that, including：
Tray body（1）, for placing article；
Signal projector, is connected to a power supply, for launching tray body（1）The signal that upper article changes；
Pressure sensor device, for detecting tray body（1）Upper Item Weight, when gravity is less than preset value, letter is compared in output
Number；
Anti-error circuit（14）, pressure sensor device is coupled in, is exported to the situation of change according to comparison signal in preset time
One control signal；
On-off circuit（13）, it is coupled in the anti-error circuit（14）, in response to control signal, to control power supply to launch with signal
Switching between device.
2. detection pallet according to claim 1, it is characterized in that, the pressure sensor device includes：
Pressure sensor（3）, for detecting tray body（1）Upper Item Weight, output one detects signal；
Comparison circuit（12）, the detection signal is received, it is defeated for comparing the amplitude of the detection signal and the size of preset value
Go out the comparison signal.
3. detection pallet according to claim 2, it is characterized in that, the comparison circuit（12）Including：
Preset value generative circuit（11）, output one with described for detecting the preset value that signal is compared；
Comparator, its input in the same direction receives the detection signal, and reverse input end receives the preset value, output end output institute
State comparison signal.
4. detection pallet according to claim 3, it is characterized in that：The preset value generative circuit（11）Including first resistor
And potentiometer, one end connection supply voltage of first resistor, the other end is connected to the movable end of the potentiometer, the one of potentiometer
The reverse input end connection of fixing end and comparator, another fixing end ground connection.
5. detection pallet according to claim 1, it is characterized in that, the anti-error circuit（14）Including：
Delay circuit, its input is coupled to the comparison circuit（12）, in response to comparison signal and export one delay compare letter
Number；
With door, with two inputs and an output end, the output end coupling of one input and delay circuit is another defeated
Enter end and comparison circuit（12）Output end coupling, its output end output control signal.
6. detection pallet according to claim 1, it is characterized in that：The on-off circuit（13）Including second resistance and three poles
Pipe, one end of the second resistance is connected to the output end of comparator, and the other end is connected to the base stage of triode；The triode
Emitter stage be connected to signal projector, the colelctor electrode of triode is connected to starting switch.
7. detection pallet according to claim 1, it is characterized in that：The tray body（1）On be provided with place article
The standing groove being engaged（2）, the pressure sensor（3）Located at standing groove（2）Bottom.
8. detection pallet according to claim 7, it is characterized in that：The pressure sensor（3）In annular and it is recessed embedding
Located at standing groove（2）Bottom.
9. a kind of refrigerator, it is characterized in that：It is provided with the detection pallet described in multiple claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720265979.4U CN206572844U (en) | 2017-03-17 | 2017-03-17 | Detect pallet and the refrigerator provided with the pallet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720265979.4U CN206572844U (en) | 2017-03-17 | 2017-03-17 | Detect pallet and the refrigerator provided with the pallet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206572844U true CN206572844U (en) | 2017-10-20 |
Family
ID=60054280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720265979.4U Expired - Fee Related CN206572844U (en) | 2017-03-17 | 2017-03-17 | Detect pallet and the refrigerator provided with the pallet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206572844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111311888A (en) * | 2020-01-15 | 2020-06-19 | 广东小天才科技有限公司 | Method, system, storage medium and equipment for setting placement duration of semi-finished product |
-
2017
- 2017-03-17 CN CN201720265979.4U patent/CN206572844U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111311888A (en) * | 2020-01-15 | 2020-06-19 | 广东小天才科技有限公司 | Method, system, storage medium and equipment for setting placement duration of semi-finished product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20180317 |
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| CF01 | Termination of patent right due to non-payment of annual fee |