CN113112684A - Underground unmanned vending machine and vending method - Google Patents
Underground unmanned vending machine and vending method Download PDFInfo
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- CN113112684A CN113112684A CN202110502452.XA CN202110502452A CN113112684A CN 113112684 A CN113112684 A CN 113112684A CN 202110502452 A CN202110502452 A CN 202110502452A CN 113112684 A CN113112684 A CN 113112684A
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- 238000000034 method Methods 0.000 title claims description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 description 51
- 238000007599 discharging Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012790 confirmation Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000011888 snacks Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F11/00—Coin-freed apparatus for dispensing, or the like, discrete articles
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
- G07F9/02—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
- G07F9/023—Arrangements for display, data presentation or advertising
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
- G07F9/02—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
- G07F9/026—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus for alarm, monitoring and auditing in vending machines or means for indication, e.g. when empty
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
- G07F9/10—Casings or parts thereof, e.g. with means for heating or cooling
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention provides an underground unmanned vending machine which comprises an explosion-proof shell, wherein a vending device is arranged in the explosion-proof shell; the explosion-proof shell is a square shell, and a hollow interface is arranged on the shell and used for connecting the goods taking bin, the control module, the gas monitoring and alarming device, the cable and the compressed air pipeline; the goods taking bin, the control module, the gas monitoring and alarming device, the cable and the compressed air pipeline are hermetically connected with the explosion-proof shell; the compressed air pipeline is provided with an electric control switch; the explosion-proof shell is provided with a freight house door and a door opening sensor; the goods taking bin is provided with a goods taking door and a controller, and the controller controls the opening and closing of the goods taking door; sealing gaskets are arranged on the goods bin door and the goods taking door; the vending device, the electric control switch, the door opening sensor and the controller are all electrically connected with the control module.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to an underground unmanned vending machine and a vending method.
Background
The working environment under the mine is severe, the labor intensity is high, and workers are easy to fatigue, hunger and thirst. Under the restriction of underground working conditions, workers cannot obtain food and clean drinking water nearby a working place, and the workers need to carry the workers when entering a well for working every day, so that the body load is increased, and even the body requirements of one day cannot be met.
The Huainan mining group tries and checks an underground supermarket underground, the supermarket needs to be attended by people, the coal mine has three eight systems or four six systems of working time, and one supermarket needs to be attended by 3-4 people, so that the labor cost is increased. And cannot be placed close to the work surface entrance.
The mode of adopting the unmanned vending machine to provide food and clean drinking water for workers can reduce labor cost, but underground environment is complex, especially a gas mine has strict explosion-proof requirements on electromechanical equipment, the explosion-proof function of the unmanned vending machine is not realized in the prior art, the underground unmanned vending machine does not exist, and the type of the unmanned vending machine used on the ground is various, for example: beverage vending machines, snack vending machines, blind-box vending machines, etc., but the construction is not suitable for use downhole.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the first purpose of the invention is to provide a downhole vending machine, so as to realize safe use of the vending machine under a mine, meet the requirement of explosion prevention, and ensure the supply of food and clean drinking water for workers under the mine.
Another object of the present invention is to provide a vending method for a downhole vending machine.
In order to achieve the above object, according to a first aspect of the present invention, there is provided a downhole unmanned vending machine, including an explosion-proof housing, a vending device being disposed inside the explosion-proof housing; the explosion-proof shell is provided with a plurality of hollowed interfaces, and the hollowed interfaces are respectively provided with a goods taking bin, a control module, a gas monitoring alarm device, a cable and a compressed air pipeline; the goods taking bin, the control module, the gas monitoring and alarming device, the cable and the compressed air pipeline are hermetically connected with the explosion-proof shell; an electric control switch is arranged on the compressed air pipeline; the explosion-proof shell is provided with a freight house door and a door opening sensor; the goods taking bin is provided with a goods taking door and a controller, and the controller controls the opening and closing of the goods taking door; the freight house door and the goods taking door are both provided with sealing strips; the vending device, the electric control switch, the door opening sensor and the controller are all electrically connected with the control module.
In addition, the underground unmanned vending machine according to the embodiment of the invention also has the following additional technical characteristics:
further, the cable is connected with the explosion-proof shell through an explosion-proof cable sealing head.
Furthermore, the compressed air pipeline is connected with the explosion-proof shell through a flange, and a sealing gasket is arranged between the flange and the explosion-proof shell.
Further, the explosion-proof shell is a square shell and comprises a shell plate and a shell cavity, and a sealing gasket is arranged between the shell plate and the shell cavity and connected with the shell plate through a bolt.
Furthermore, the control module is provided with a display screen, a key area and a card swiping area.
Furthermore, an inclined falling plate is arranged in the goods taking bin, and one end, adjacent to the goods taking door, of the falling plate is connected with the bottom of the goods taking bin.
According to the underground unmanned vending machine provided by the embodiment of the invention, the air environment in the mine is completely isolated from the internal environment of the underground unmanned vending machine through the sealing of the explosion-proof shell and the sealing connection among the explosion-proof shell, the goods taking bin, the control module, the gas monitoring and alarming device, the cable and the compressed air pipeline, gas is conveyed into the vending machine through the compressed air pipeline, the internal pressure of the vending machine is higher than the external environment, after the goods taking door or the goods bin door is opened, the air in the vending machine flows to the external environment, and the air in the external environment cannot enter the vending machine under the action of pressure difference, so that the electromechanical device in the vending machine cannot be contacted with inflammable gases such as gas in the mine, and the aim of explosion prevention is fulfilled.
According to the vending method of the underground unmanned vending machine, disclosed by the embodiment of the second aspect of the invention, the external gas concentration is detected through the gas monitoring alarm device, when the external gas concentration exceeds a set value, an alarm signal is sent out, the vending machine stops the vending function, and when the external gas concentration does not exceed the set value, the vending machine normally works.
Further, the set value is 1%.
Further, when the vending machine works normally, before a goods warehouse door and a goods taking door of the vending machine are opened, the electric control switch of the compressed air pipeline is opened, and after the goods warehouse door and the goods taking door of the vending machine are closed, the electric control switch of the compressed air pipeline is closed.
Further, after the control module receives a purchase instruction, the control module firstly opens an electric control switch of the compressed air pipeline, and then the vending machine pushes goods into the goods taking bin and opens the goods taking door; after the goods are taken away, the control module firstly closes the goods taking door and then closes the electric control switch of the compressed air pipeline.
According to the vending method of the underground unmanned vending machine, after the gas concentration in the mine exceeds the set safety value, the vending machine stops working, and the vending machine can normally vend only if the gas concentration value in the mine is within the normal safety range, so that the unmanned vending machine is prevented from working in an air environment easy to explode; when the vending machine normally sells goods, the conditions of opening a goods warehouse door for replenishing goods and opening a goods taking door for taking goods are adopted, the pressure difference is made by opening the compressed air pipeline in advance, after the compressed air pipeline is opened, the pressure of the air in the vending machine is higher than the external air environment of the vending machine, the air flows from the inside of the vending machine to the outside of the vending machine, and the safe work of the electromechanical device in the vending machine is ensured.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of an internal structure of a downhole vending machine according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an external structure of a downhole vending machine according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a door structure of a downhole vending machine cargo compartment according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a cable and pneumatic line structure of a downhole vending machine according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an electrical connection configuration of a downhole vending machine according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a cargo compartment of an underground vending machine according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a vending method for a downhole vending machine according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A downhole vending machine and a vending method according to embodiments of the present invention will be described with reference to fig. 1 to 7.
In order to achieve the above objects, according to the first aspect of the present invention, as shown in fig. 1-6, there is provided a downhole unmanned vending machine, comprising an explosion-proof housing 1, a vending apparatus 2 disposed inside the explosion-proof housing 1; the explosion-proof shell 1 is provided with a plurality of hollowed interfaces, and the hollowed interfaces are respectively provided with a goods taking bin 3, a control module 4, a gas monitoring alarm device 5, a cable 6 and a compressed air pipeline 7; the goods taking bin 3, the control module 4, the gas monitoring and alarming device 5, the cable 6 and the compressed air pipeline 7 are hermetically connected with the explosion-proof shell 1; an electric control switch 701 is arranged on the compressed air pipeline 7; the explosion-proof shell 1 is provided with a freight door 101 and a door opening sensor 102; the goods taking bin 3 is provided with a goods taking door 302 and a controller 301, and the controller 301 controls the opening and closing of the goods taking door 302; the goods warehouse door 101 and the goods taking door 302 are both provided with sealing strips; the vending device 2, the electric control switch 701, the door opening sensor 102 and the controller 301 are all electrically connected with the control module 4.
Specifically, the explosion-proof shell 1 is hinged with the freight house door 101 through a hinge, a sealing strip is arranged between the freight house door 101 and the explosion-proof shell 1, when the freight house door 101 is closed, gas cannot enter the explosion-proof shell 1 from the freight house door 101, the freight house door 101 is provided with a door handle and a door lock, and the explosion-proof shell 1 is provided with a buckle corresponding to the door lock; the door opening sensor 102 is an electromagnetic sensor, and a magnet is disposed at a position of the cargo door 101 corresponding to the electromagnetic sensor, and when the cargo door 101 is opened, the magnet leaves the electromagnetic sensor, and the electromagnetic sensor generates an electrical signal and transmits the electrical signal to the control module 4.
The vending device 2 is welded inside the explosion-proof shell 1 and is positioned on one side of the warehouse door 101; the vending device 2 adopts a spiral spring delivery mode commonly used in the prior art, a plurality of goods channels are arranged in the vending device 2, the axes of the goods channels are perpendicular to the goods cabin door 101, corresponding spiral springs are arranged in each goods channel, and the sold goods are pushed out of the goods channels through the rotation of the spiral springs.
The goods taking chamber 3 is arranged in the explosion-proof shell 1 and is opposite to the goods selling device 2, the goods channel outlet of the goods selling device 2 is arranged above the goods taking chamber 3, goods pushed out of the goods channel by the spiral spring can just fall into the goods taking chamber 3, the goods taking door 302 is hinged with the goods taking chamber 3 and is opened outwards to take the goods, the goods taking door 302 controls the opening and closing of the goods taking door 302 through a controller 301 arranged on the goods taking chamber 3, a sealing strip is arranged between the goods taking door 302 and the goods taking chamber 3, and after the goods taking door 302 is closed, gas cannot enter the goods taking chamber 3 from the goods taking door 302; one end of the goods taking bin 3, which is provided with the goods taking door 302, is welded with the edge of the hollowed-out interface of the explosion-proof shell 1; optionally, the top of the goods taking bin 3 may be further provided with a goods discharging door 303, the goods discharging door 303 is hinged to the goods taking bin 3 and opened downwards, the goods pushed out of the goods channel by the coil spring first fall onto the goods discharging door 303, then the goods discharging door 303 is opened downwards, the goods slide from the goods discharging door 303 into the goods taking bin 3, and finally the goods taking door 302 is opened to take the goods; the shipment door 303 is controlled by the controller 301 to open and close, and two control motors are respectively arranged in the controller 301, and the control motors control the opening and closing of the pickup door 302 and the shipment door 303 through the existing control structure, for example: the control motor can control the opening and closing of the goods taking door 302 and the goods discharging door 303 through a hinged four-bar mechanism; optionally, the interior of the goods taking bin 3 can be further provided with an inclined goods falling plate 304, one end of the goods falling plate 304, which is adjacent to the goods taking door 302, is connected with the bottom of the goods taking bin 3, so that an included angle is formed between the goods falling plate 304 and the bottom of the goods taking bin, and thus, goods falling on the goods falling plate 304 can fall on the goods taking door 302, and even if the goods taking bin 3 is deep in the longitudinal direction, the goods can also be guaranteed to directly fall on the goods falling plate 304 on the goods taking door 302, and the goods can be taken conveniently.
The control module 4 and the gas monitoring alarm device 5 are arranged outside the explosion-proof shell 1, and sealing gaskets are arranged between the control module 4, the gas monitoring alarm device 5 and the explosion-proof shell 1 and are compressed by bolts or screws for sealing; the cable 6 is hermetically connected with the explosion-proof shell 1 through an explosion-proof cable sealing head; one end of the compressed air pipeline 7, which is connected with the explosion-proof shell 1, is respectively provided with an electric control switch 701 and a flange, the flange is hermetically connected with the explosion-proof shell 1, and a sealing gasket is arranged between the flange and the explosion-proof shell 1 and is compressed by a bolt.
Through the freight house door 101, get the freight house 3, control module 4, gas monitoring alarm device 5, cable 6 and the sealing connection between compressed air pipeline 7 and explosion-proof housing 1 with the inside circuit of unmanned vending machine and the air circumstance that contains gas in the pit completely isolated, the safe handling of unmanned vending machine in the pit of assurance.
In addition, the underground unmanned vending machine according to the embodiment of the invention also has the following additional technical characteristics:
further, explosion-proof shell 1 is square casing, including shell plate 10 and shell cavity 11, shell cavity 11 is formed by 5 steel sheet rigid couplings, the fretwork interface all sets up on shell cavity 11, set up sealed pad and pass through bolted connection between shell plate 10 and the shell cavity 11.
Set up the shell plate of freight house door 101 one side into detachable construction and not only be convenient for install and get the inner structure such as storehouse 3, vending device 2, also be favorable to the later stage to the internal structure of vending machine overhaul.
Further, the control module 4 is provided with a display screen, a key area and a card swiping area.
When the vending machine is not used by a person, a welcome page is displayed on the display screen, and when the person operates the key area, the information for selecting to purchase the commodity is displayed on the display screen; the key area is provided with an upper key and a lower key for selecting the types of commodities, an adding key and a subtracting key for selecting the number of the commodities, and is also provided with a canceling key, when a person selects the commodity type, the canceling key is directly pressed, the display screen returns a welcoming page, the number of the selected commodities is cleared when the number of the commodities is selected, and the canceling key is pressed again to return the welcoming page after the number of the commodities is cleared; the key area is also provided with a confirmation key, the confirmation key is pressed after the number of the commodities is selected, then the card is swiped in the card swiping area to finish the transaction, the commodities can fall into the goods taking bin 3 from the vending machine, and if the confirmation key is pressed for 30 seconds without swiping the card, the display screen can directly return to the welcome page.
According to the underground unmanned vending machine provided by the embodiment of the invention, the air environment in the mine is completely isolated from the internal environment of the underground unmanned vending machine through the sealing of the explosion-proof shell 1 and the sealing connection among the explosion-proof shell 1, the goods taking bin 3, the control module 4, the gas monitoring and alarming device 5, the cable 6 and the compressed air pipeline 7, gas is conveyed into the vending machine through the compressed air pipeline 7, the internal pressure of the vending machine is higher than that of the external environment, after the goods taking door 302 or the goods bin door 101 is opened, the air in the vending machine flows to the external environment, and the air in the external environment cannot enter the vending machine under the action of the pressure difference, so that the electromechanical device in the vending machine cannot be contacted with inflammable gases such as gas in the mine, and the explosion-proof purpose is achieved.
According to the vending method of the underground unmanned vending machine, disclosed by the embodiment of the second aspect of the invention, the external gas concentration is detected through the gas monitoring alarm device 5, the gas monitoring alarm device 5 is provided with an alarm threshold, when the external gas concentration exceeds the set threshold, the gas monitoring alarm device 5 sends out an alarm signal, the vending machine stops the vending function, and when the external gas concentration does not exceed the set threshold, the vending machine normally works.
The unmanned vending machine can not only avoid using the unmanned vending machine in a dangerous environment through setting up the gas concentration in the air of the gas monitoring alarm device 5 outside, but also remind the underground working personnel to avoid using other electrical equipment when the gas concentration exceeds a set value.
Further, the threshold value set for the gas monitoring alarm device 5 is 1% according to the relevant regulations of the coal mine safety regulations.
Specifically, as shown in fig. 7, the safety function of the unmanned vending machine determines whether the unmanned vending machine can normally vend goods, which is realized by a gas monitoring alarm device 5 arranged outside the unmanned vending machine, wherein the gas monitoring alarm device 5 has a gas monitoring function and can detect the gas concentration in the air; the regulation of coal mine safety regulations: when the gas concentration in the return air way of the mining area and the return air way of the mining working face exceeds 1.0 percent or the carbon dioxide concentration exceeds 1.5 percent, stopping working, withdrawing personnel, taking measures and processing; when the gas concentration in the wind current reaches 1.0 percent within 20m near the excavation working face and other operation places, the motor or the switch thereof is installed, the blasting is strictly forbidden; for the electrical equipment with the power cut off due to the fact that the gas concentration exceeds the specification, the electrical equipment can be powered on and started when the gas concentration is reduced to be below 1.0%, therefore, the set value of the gas monitoring alarm device 5 is set to be 1%, when the gas concentration in the air around the underground unmanned vending machine is not larger than 1%, the vending machine works normally, when the gas concentration is larger than 1%, an alarm signal is sent out, the control module 4 controls the vending machine to stop the vending function, and the display screen displays that the gas is over-limited.
Further, when the vending machine normally works, before the warehouse door 101 and the goods taking door 302 of the vending machine are opened, the electric control switch of the compressed air pipeline 7 is opened, and after the warehouse door 101 and the goods taking door 302 of the vending machine are closed, the electric control switch 701 of the compressed air pipeline 7 is closed.
Further, after the control module 4 receives a purchase instruction, the control module 4 firstly opens the electric control switch 701 of the compressed air pipeline 7, and then the vending machine pushes goods into the goods taking bin 3 and opens the goods taking door 302; after the goods are taken, the control module 4 firstly closes the goods taking door 302 and then closes the electric control switch of the compressed air pipeline 7.
Specifically, the user can purchase the required goods through the vending machine when the vending machine normally sells goods; a user selects a required commodity by using a display screen and a key arranged on the control module 4, and swipes a card in the card swiping area to purchase the selected commodity; when the vending machine is not used by a person, the display screen displays a welcome page, and when the person operates the key area, the display screen displays information for selecting to purchase goods; the key area is provided with an upper key and a lower key for selecting the types of commodities, an adding key and a subtracting key for selecting the number of the commodities, and is also provided with a canceling key, when a person selects the commodity type, the canceling key is directly pressed, the display screen returns a welcoming page, the number of the selected commodities is cleared when the number of the commodities is selected, and the canceling key is pressed again to return the welcoming page after the number of the commodities is cleared; the key area is also provided with a confirmation key, the confirmation key is pressed after the commodity quantity is selected, then the card is swiped in the card swiping area to complete the transaction, and the control module 4 controls the vending device 2 to discharge the commodity after receiving the command of completing the transaction; firstly, the control module 4 controls an electric control switch of a compressed air pipeline 7 to be turned on, the compressed air pipeline 7 ventilates the inside of the unmanned vending machine, so that the air pressure inside the unmanned vending machine is higher than the outside, meanwhile, the vending device 2 receives a goods discharging instruction of the control module 4, and the vending device 2 pushes goods into the goods taking bin 3 through a spiral spring; then the control module 4 controls the goods taking door 302 to be opened, and after a user of the goods selling machine takes the goods, the control module 4 controls the goods taking door 302 to be closed; and finally, the control module 4 controls an electric control switch 701 of the compressed air pipeline 7 to be closed.
Unmanned vending machine staff can also carry out the replenishment to the vending machine when normally selling goods, when the staff opened goods door 101, the inductor 102 that opens the door produced signal of telecommunication transmission for control module 4, control module 4 control compressed air pipeline 7 electric control switch opens, the distinguished and admirable entering vending machine by compressed air pipeline 7, flow out by goods door 101, the internal gas pressure of vending machine this moment is greater than the external world, can prevent that external gas from getting into the vending machine, staff's replenishment is accomplished the back and is closed goods door 101, the inductor 102 that opens the door can be closed the produced signal of telecommunication transmission for control module 4, control module 4 control compressed air pipeline 7's electric control switch 701 is closed.
According to the vending method of the underground unmanned vending machine, after the gas concentration in the mine exceeds the set safety value, the vending machine stops working, and the vending machine can normally vend only if the gas concentration value in the mine is within the normal safety range, so that the unmanned vending machine is prevented from working in an air environment easy to explode; when the vending machine normally sells goods, the situation that goods are replenished by opening the goods bin door 101 and goods are taken by opening the goods taking door 302 is adopted, the pressure difference is made by opening the electric control switch 701 of the compressed air pipeline 7 in advance, after the electric control switch 701 of the compressed air pipeline 7 is opened, the pressure intensity of the air in the vending machine is higher than the external air environment of the vending machine, the air flows to the outside of the vending machine from the inside of the vending machine, and the safe work of the electromechanical device in the vending machine is ensured.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The underground unmanned vending machine is characterized by comprising an explosion-proof shell, wherein a vending device is arranged in the explosion-proof shell;
the explosion-proof shell is provided with a plurality of hollowed interfaces, and the hollowed interfaces are respectively provided with a goods taking bin, a control module, a gas monitoring alarm device, a cable and a compressed air pipeline;
the goods taking bin, the control module, the gas monitoring and alarming device, the cable and the compressed air pipeline are hermetically connected with the explosion-proof shell;
an electric control switch is arranged on the compressed air pipeline;
the explosion-proof shell is provided with a freight house door and a door opening sensor;
the goods taking bin is provided with a goods taking door and a controller, and the controller controls the opening and closing of the goods taking door;
the freight house door and the goods taking door are both provided with sealing strips;
the vending device electric control switch, the door opening inductor and the controller are all connected with the control module.
2. A downhole vending machine according to claim 1, wherein the cable is connected to the explosion-proof housing by an explosion-proof cable sealing head.
3. The underground vending machine as claimed in claim 1, wherein the compressed air pipeline is connected with the explosion-proof housing through a flange, and a sealing gasket is arranged between the flange and the explosion-proof housing.
4. The underground automatic vending machine of claim 1, wherein the explosion-proof housing is a square housing and comprises a housing plate and a housing cavity, and a sealing gasket is arranged between the housing plate and the housing cavity and is connected with the housing plate and the housing cavity through bolts.
5. A downhole vending machine according to claim 1, wherein the control module is provided with a display screen, a key zone, and a card swiping zone.
6. The underground vending machine of claim 1, wherein an inclined dropping board is disposed in the pick bin, and an end of the dropping board adjacent to the pick door is connected to a bottom of the pick bin.
7. The vending method of the underground unmanned vending machine is characterized in that external gas concentration is detected through a gas monitoring alarm device, the gas monitoring alarm device sets an alarm threshold value, when the external gas concentration exceeds the set threshold value, the gas monitoring alarm device sends an alarm signal, the vending machine stops vending functions, and when the external gas concentration does not exceed the set threshold value, the vending machine works normally.
8. The vending method of a downhole vending machine, according to claim 7, wherein the set value is 1%.
9. The vending method of the underground unmanned vending machine according to claim 8, wherein in normal operation of the vending machine, the electronic control switch of the compressed air pipeline is opened before the bin door and the pick-up door of the vending machine are opened, and the electronic control switch of the compressed air pipeline is closed after the bin door and the pick-up door of the vending machine are closed.
10. The vending method of the underground unmanned vending machine according to claim 9, wherein after the control module receives the purchase command, the control module firstly opens an electric control switch of the compressed air pipeline, and then the vending machine pushes the goods into the goods taking bin and opens the goods taking door; after the goods are taken away, the control module firstly closes the goods taking door and then closes the electric control switch 701 of the compressed air pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110502452.XA CN113112684A (en) | 2021-05-08 | 2021-05-08 | Underground unmanned vending machine and vending method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023202716A1 (en) * | 2022-04-22 | 2023-10-26 | 华能罗源发电有限责任公司 | Control apparatus for preventing spontaneous combustion of accumulated powder in vertical cable shaft |
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| CN211718962U (en) * | 2020-04-28 | 2020-10-20 | 正星科技股份有限公司 | Double-sided explosion-proof vending machine |
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| CN209145357U (en) * | 2018-11-09 | 2019-07-23 | 烟台欧鹏防爆仪器有限公司 | A kind of positive pressure type destatics explosion-proof room |
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