Old-age care meal-assisting rapid change-making system

Abstract

The invention belongs to the technical field of rapid change making, and particularly relates to an old-age care meal-assisting rapid change making system which comprises an ordering module, a payment module and a meal taking module. By arranging the change unit, banknotes are input through the coin slot, input through the second conveying belt and detected through the currency detection probe, if the banknotes are correct, the banknotes need to be placed in the banknote frame according to the corresponding currency values, a second moving seat is driven to move to a proper position along an electric guide rail, then a second electric push rod is started, and the banknotes are automatically changed. A second electric push rod drives a second suction cup to move to a second conveying belt to suck the paper money, and then the paper money is put into a corresponding paper money frame through pushing of a second bidirectional electric push rod; in the change making process, a second electric push rod needs to be moved into a corresponding paper money frame through a second bidirectional electric push rod, then the second electric push rod is started to suck paper money of the corresponding number, then the paper money is moved to the position of a second conveying belt through an electric guide rail, and then the paper money is output from a coin slot.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of quick change, and particularly relates to a quick change system for old-age meal assistance. BACKGROUND

[0002] With the acceleration of the population aging process in China, more and more old people choose to dine in old-age institutions or community old-age canteens. The traditional old-age meal assistance charging mode mainly relies on manual cash register, that is, the staff manually collects meal charges, performs simple mental calculation or uses an ordinary calculator to calculate the change amount, and then delivers the corresponding change to the old people to complete the transaction.

[0003] In the prior art, the current old-age meal assistance scene generally adopts a manual cash register mode, which specifically includes the following steps: manually collecting cash paid by the old people; relying on mental calculation or an ordinary calculator to calculate the change amount; and delivering the corresponding change to the old people. However, during the meal peak period, a large number of old people gather for meals, and the process of manually collecting and changing the change one by one is time-consuming, which easily leads to a backlog of the queue, increases the waiting time of the old people, and affects the overall dining experience. When the staff calculates the change amount, due to factors such as fatigue and distraction of attention, it is inevitable that mistakes will occur, such as overcharging or undercharging the change, which not only causes a loss of the financial resources of the old-age institution, but also may cause disputes with the old people and damage the reputation of the institution.

[0004] At present, in the prior art, during the meal peak period, the change is collected and changed one by one, which increases the waiting time of the old people and affects the overall dining experience. Moreover, due to factors such as fatigue and distraction of attention, it is inevitable that mistakes will occur after a long time of work.

[0005] Therefore, the application provides a quick change system for old-age meal assistance. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the application to solve the technical problems is that the quick change system for old-age meal assistance includes an order placing module, a payment module and a meal taking module. The order placing module includes an order placing unit for providing dish selection and generating a meal list, a meal list price calculation unit and a payment unit generated according to the meal list price and the payment module. The order placing module is realized by using a touch screen. The payment module includes an input unit for receiving cash paid by customers, a scanning unit for authenticity identification, a payment unit for calculating the change amount, and a change unit for generating a change scheme according to a preset change strategy. The payment module is realized by using a POS device. The order placing module and the payment module are connected by signals. The food collection module includes a kitchen order receiving unit that is signal-connected to the ordering module, a processing unit for processing orders for customers, and a reminder unit for reminding customers to collect their food.

[0008] Preferably, the POS device includes a base, a movable box fixedly connected to the top of the base, and a display screen fixedly connected to the top of the movable box; a cash register frame slidably connected to the inner side wall of the base; the cash register frame contains multiple coin holders and banknote holders; an electric guide rail fixedly connected to the bottom inner wall of the movable box, with a first movable seat and a second movable seat slidably connected to both ends of the electric guide rail respectively; a first bidirectional electric push rod fixedly connected to the bottom of the first movable seat, with both ends of the first bidirectional electric push rod fixedly connected to a first electric push rod via a mounting plate, and a first suction cup installed at the output end of each first electric push rod; a second bidirectional electric push rod fixedly connected to the bottom of the second movable seat, with both ends of the second bidirectional electric push rod fixedly connected to a second electric push rod via a mounting plate, and multiple second suction cups installed at the output end of each second electric push rod.

[0009] Preferably, a first side plate is fixedly connected to one end of the movable box near the first suction cup, and a first conveyor belt is sleeved on the side wall of the first side plate via rollers; a coin insertion tube and a coin receiving box are fixedly connected to the side wall of the movable box near the first conveyor belt, the coin insertion tube is located above the coin receiving box, and a coin verification probe is located above the first conveyor belt.

[0010] Preferably, a second side plate is fixedly connected to one end of the movable box near the second suction cup, and a second conveyor belt is sleeved on the side wall of the second side plate via a rotating shaft. A coin slot is opened on the side wall of the movable box near the second conveyor belt, and a banknote verification probe is provided above the second conveyor belt.

[0011] Preferably, a drive wheel is fixedly connected to one end of the rotating shaft near the coin slot, and a conveying roller is rotatably connected to the second side wall via a rotating shaft. A driven wheel is fixedly connected to one end of the rotating shaft, and the driven wheel meshes with the drive wheel.

[0012] Preferably, a third electric actuator is fixedly connected to the top inner wall of the movable box, a connecting plate is fixedly connected to the output end of the third electric actuator, a pen-shaped cylinder is fixedly connected to the bottom of the connecting plate, a push rod is fixedly connected to the output end of the pen-shaped cylinder, a fixed rod is fixedly connected to one end of the housing of the pen-shaped cylinder, and pressure rollers are rotatably connected to the bottom of both the push rod and the fixed rod; two sliding rods are fixedly connected to the side wall of the push rod, and both sliding rods are slidably connected to the fixed rod.

[0013] Preferably, a photoelectric switch is fixedly connected to the side wall of the second side plate, two retractable rods are fixedly connected to the top of the connecting plate, and the tops of the retractable rods are all fixedly connected to the top inner wall of the movable box. The photoelectric switch is electrically connected to the third electric push rod.

[0014] Preferably, the top of each banknote frame is rotatably connected to a pressure plate via a rotating rod. One end of each rotating rod is fixedly connected to a gear, and one side of each gear is provided with a rack. Each gear meshes with an adjacent rack. The outer side of each rack is fixedly connected to a crossbar via a connecting block, and one side of the crossbar is provided with a driving mechanism.

[0015] Preferably, the driving mechanism includes a protective box fixed to the outer wall of the cash register frame, a reciprocating screw rotatably connected between the protective box and the bottom of the movable box via a bearing, a lifting plate threaded onto the reciprocating screw, and the lifting plate fixed to the side wall of the crossbar; two guide rods fixed between the movable box and the protective box, and the lifting plate slidably connected to the two guide rods; a motor fixed to the bottom of the protective box, and the output shaft of the motor fixed to the bottom of the reciprocating screw.

[0016] Preferably, a coin return frame is fixed to the side wall of the cash register near the coin holder, for collecting problematic coins detected by the coin verification probe.

[0017] The beneficial effects of this invention are as follows: 1. The present invention discloses a rapid change-giving system for elderly meal assistance. By setting up a change-giving unit, banknotes are inserted through a coin slot and then fed into the system via a second conveyor belt. During the input process, a banknote detector checks the banknotes. If the banknotes are correct, they are placed in the corresponding denomination within the banknote frame. A second moving seat is driven to move along an electric guide rail to the appropriate position. Then, a second electric push rod is activated, which drives a second suction cup to move onto the second conveyor belt to pick up the banknotes. The banknotes are then placed into the corresponding banknote frame by the push of a second bidirectional electric push rod. During the change-giving process, the second electric push rod is first moved to the corresponding banknote frame, then activated to pick up the corresponding number of banknotes. The banknotes are then moved to the position of the second conveyor belt via the electric guide rail, and finally, the banknotes are output from the coin slot.

[0018] The present invention discloses a rapid change-making system for elderly meal assistance. By setting a fixed rod and a push rod, when the banknote is conveyed to the designated position, a third electric push rod is activated. The output end of the third electric push rod drives a connecting plate, which in turn drives a pen-shaped cylinder until the pressure roller moves above the banknote. Then, the pen-shaped cylinder is activated, pushing the push rod to one side. The pressure roller flattens the banknote, ensuring it remains flat for easy detection. During the pushing process, the push rod drives a sliding rod, which slides on the fixed rod, limiting the sliding rod's movement horizontally.

[0019] The present invention discloses a rapid change-making system for elderly meal assistance. By setting up gears and racks, the motor is turned on, and the output shaft of the motor drives the reciprocating screw to rotate. The reciprocating screw drives the lifting plate to move, the lifting plate drives the crossbar to move, the crossbar drives the rack to move, the rack drives the gear to rotate, the gear drives the rotating rod to rotate, and the rotating rod drives the pressure plate to rotate until the banknotes are pressed into a tight state, ensuring the banknotes are flat. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a modular framework diagram of the change-finding system in this invention; Figure 2 This is a perspective view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the active box in this invention; Figure 4 This is a cross-sectional view of the movable box in this invention; Figure 5 This is a schematic diagram of the structure of the first conveyor belt and the second conveyor belt in this invention; Figure 6 This is a schematic diagram of the structure of the fixed rod and the push rod in this invention; Figure 7 This is a schematic diagram of the cash register frame in this invention; Figure 8 This is a schematic diagram of the structure of the gear and rack in this invention; In the diagram: 1. Base; 2. Cash register frame; 21. Coin dispenser; 22. Coin holder; 23. Banknote holder; 231. Pressure plate; 24. Protective box; 25. Crossbar; 251. Lifting plate; 252. Reciprocating screw; 253. Guide rod; 254. Motor; 255. Rack; 256. Gear; 3. Movable box; 31. Electric guide rail; 32. First moving seat; 321. First bidirectional electric actuator; 322. First electric actuator; 323. First suction cup; 33. Second moving seat; 331. Second bidirectional electric actuator; 332. Second electric actuator. 333. Push rod; 34. Second suction cup; 35. First side plate; 36. First conveyor belt; 37. Second side plate; 38. Second conveyor belt; 39. Drive wheel; 30. Driven wheel; 31. Conveyor roller; 32. Coin tube; 33. Coin box; 34. Coin slot; 35. Coin detector; 36. Banknote detector; 37. Third electric push rod; 38. Connecting plate; 39. Pen-shaped cylinder; 39. Fixing rod; 39. Push rod; 39. Slide rod; 39. Retracting rod; 310. Photoelectric switch; 4. Display screen. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figure 1 As shown in the embodiment of the present invention, a rapid change-giving system for elderly meal assistance includes an ordering module, a payment module, and a meal pickup module. The ordering module includes an ordering unit for providing menu selection and generating a menu, a settlement unit for calculating menu prices, and a payment unit generated by the payment module based on the menu prices. The ordering module is implemented using a touch screen. The payment module includes an input unit for receiving cash payments from customers, a scanning unit for verifying the authenticity of cash, and a change-giving unit for calculating the change amount to be given and generating a change scheme based on a preset change-giving strategy. The payment module is implemented using a POS device, and the ordering module and the payment module are connected via a signal. The meal pickup module includes a kitchen menu receiving unit connected to the ordering module via a signal, a processing unit for processing menus for customers, and a reminder unit for reminding customers to pick up their meals.

[0024] Step 1: Ordering Stage Customers can browse the available dishes for the day through a graphical interface on the touchscreen and add the desired dishes to their shopping cart. The total price of the selected dishes is calculated in real time through the settlement unit, and the unit price × quantity details and total amount are displayed simultaneously for customers to check again. After confirming that everything is correct, the cashier clicks the "Proceed to Payment" button, and the ordering module transmits the complete order information to the payment module via signal.

[0025] Step Two: Payment and Change Stage The cashier inserts banknotes / coins into the POS machine, and the scanning unit immediately initiates a counterfeit detection. If counterfeit money is detected, the POS machine will sound an audible and visual alarm and refuse to accept it. According to the preset change-making strategy, large denomination banknotes and coins are used first to make up the last digit, and the change-making unit automatically matches the optimal combination. After successful payment, the POS machine prints a receipt with a QR code and sends a payment success signal and order number to the ordering module. Step 3: Food Pickup Stage The kitchen menu receiving unit receives order information from the ordering module in real time, and the chefs begin preparing the dishes according to their categories. The system records the food preparation time, and orders that are not completed within the time limit will be automatically reminded to be prioritized by the kitchen. Once the food is ready, the notification unit will announce the pick-up number via display screen / voice. Once the customer presents the receipt or scans the QR code to complete the food pickup verification, the system marks the order as fulfilled.

[0026] Regarding exception handling mechanisms: In cases of insufficient change, if the balance in the change box is below the threshold, the POS machine will proactively prompt the staff to replenish the change and temporarily switch to the manual checkout channel.

[0027] Refund / Exchange Process: Customers can initiate a refund request via touchscreen. After administrator approval, the refund will be returned to the original payment method.

[0028] like Figure 3 and Figure 5 As shown, the POS device includes a base 1, a movable box 3 fixedly connected to the top of the base 1, and a display screen 4 fixedly connected to the top of the movable box 3; a cash register frame 2 is slidably connected to the inner side wall of the base 1; the cash register frame 2 is provided with multiple coin frames 22 and banknote frames 23; an electric guide rail 31 is fixedly connected to the bottom inner wall of the movable box 3, and a first movable seat 32 and a second movable seat 33 are slidably connected to both ends of the electric guide rail 31 respectively; a first bidirectional electric push rod 321 is fixedly connected to the bottom of the first movable seat 32, and a first electric push rod 322 is fixedly connected to both ends of the first bidirectional electric push rod 321 through a mounting plate, and a first suction cup 323 is installed at the output end of each of the first electric push rods 322; a second bidirectional electric push rod 331 is fixedly connected to the bottom of the second movable seat 33, and a second electric push rod 332 is fixedly connected to both ends of the second bidirectional electric push rod 331 through a mounting plate, and multiple second suction cups 333 are installed at the output end of each of the second electric push rods 332.

[0029] The first suction cup 323 and the second suction cup 333 provided by this invention are used to pick up coins. For coins, the coins are inserted through the coin tube 36 and then fed into the first conveyor belt 341. During the feeding process, the coins are detected by the coin verification probe 37. If the coins are correct, they need to be placed in the coin frame 22 according to their corresponding value. The first moving seat 32 is driven to move along the electric guide rail 31 to the appropriate position. Then the first electric push rod 322 is activated, which drives the first suction cup 323 to move onto the first conveyor belt 341 to pick up the coins. Then, the first bidirectional electric push rod 321 pushes the coins into the corresponding coin frame 22. During the change-making process, the first electric push rod 322 needs to be moved to the corresponding coin frame 22 by the first bidirectional electric push rod 321. Then the first electric push rod 322 is activated to pick up the corresponding number of coins. Then, the coins are moved to the position of the first conveyor belt 341 by the electric guide rail 31. The first conveyor belt 341 transports the coins in reverse, and the coins are output from the coin collection box 361. For banknotes, the banknotes are inserted through the coin slot 362 and then fed into the second conveyor belt 351. During the input process, the banknotes are detected by the banknote detector 38. If the banknotes are correct, they need to be placed in the banknote frame 23 according to their corresponding denominations. The second moving seat 33 is driven to move along the electric guide rail 31 to the appropriate position. Then, the second electric push rod 332 is activated, which drives the second suction cup 333 to move onto the second conveyor belt 351 to pick up the banknotes. Then, the banknotes are placed into the corresponding banknote frame 23 by the push of the second bidirectional electric push rod 331. For making change, the second electric push rod 332 needs to be moved to the corresponding banknote frame 23 by the second bidirectional electric push rod 331. Then, the second electric push rod 332 is activated to pick up the corresponding number of banknotes. Then, the banknotes are moved to the position of the second conveyor belt 351 by the electric guide rail 31. Finally, the banknotes are output from the coin slot 362. The two bidirectional electric actuators are typically configured such that the output end of the bidirectional electric actuator operates according to the coin value, which facilitates the rapid pickup of the corresponding suction cup.

[0030] like Figure 3 As shown, a first side plate 34 is fixedly connected to one end of the movable box 3 near the first suction cup 323. A first conveyor belt 341 is sleeved on the side wall of the first side plate 34 via rollers. A coin insertion tube 36 and a coin receiving box 361 are fixedly connected to the side wall of the movable box 3 near the first conveyor belt 341. The coin insertion tube 36 is located above the coin receiving box 361. A coin verification probe 37 is located above the first conveyor belt 341.

[0031] The first conveyor belt 341 provided by this invention is used to transport coins. During input, the coins are inserted through the coin insertion tube 36 and then input through the first conveyor belt 341. During the input process, the coins are detected by the coin verification probe 37. If the coins are correct, they need to be picked up by the first suction cup 323 and placed into the corresponding coin frame 22. If the coins are counterfeit or too dirty, they need to be picked up by the first suction cup 323 and placed into the coin return frame 21. When change is needed, the coins are picked up by the suction cup and placed onto the first conveyor belt 341, and then transported in the reverse direction by the first conveyor belt 341. Finally, the coins are output from the coin collection box 361.

[0032] like Figure 5 As shown, a second side plate 35 is fixedly connected to one end of the movable box 3 near the second suction cup 333. A second conveyor belt 351 is sleeved on the side wall of the second side plate 35 through a rotating shaft. A coin slot 362 is opened on the side wall of the movable box 3 near the second conveyor belt 351. A banknote verification probe 38 is provided above the second conveyor belt 351.

[0033] The second conveyor belt 351 provided by this invention is used to transport banknotes. Banknotes are inserted through the coin slot 362 and then fed into the banknotes via the second conveyor belt 351. During the input process, the banknotes are detected by the banknote detector 38. If the banknotes are correct, they need to be placed in the banknote frame 23 according to their corresponding denominations. If there is a problem with the banknotes, the second conveyor belt 351 needs to reverse the flow and output the banknotes from the coin slot 362. When giving change, the banknotes also need to be placed on the second conveyor belt 351 and transported in reverse. Finally, all banknotes are output from the coin slot 362.

[0034] like Figure 5 As shown, a drive wheel 352 is fixedly connected to one end of the rotating shaft near the coin slot 362. A conveying roller 354 is rotatably connected to the second side wall via a rotating shaft. A driven wheel 353 is fixedly connected to one end of the rotating shaft, and the driven wheel 353 meshes with the drive wheel 352.

[0035] The conveying roller 354 provided by the present invention is used to facilitate the horizontal conveying of banknotes. During the conveying process, the rotating shaft of the second conveyor belt 351 drives the driving wheel 352 to rotate, which in turn drives the driven wheel 353 to rotate, and the driven wheel 353 drives the conveying roller 354 to rotate in the opposite direction, thereby facilitating the conveying of banknotes in conjunction with the second conveyor belt 351.

[0036] like Figure 6 As shown, a third electric actuator 39 is fixedly connected to the top inner wall of the movable box 3. A connecting plate 391 is fixedly connected to the output end of the third electric actuator 39. A pen-shaped cylinder 392 is fixedly connected to the bottom of the connecting plate 391. A push rod 394 is fixedly connected to the output end of the pen-shaped cylinder 392. A fixed rod 393 is fixedly connected to one end of the housing of the pen-shaped cylinder 392. Pressure rollers are rotatably connected to the bottom of both the push rod 394 and the fixed rod 393. Two sliding rods 395 are fixedly connected to the side wall of the push rod 394. Both sliding rods 395 are slidably connected to the fixed rod 393.

[0037] The fixed rod 393 and push rod 394 provided by this invention are used to flatten banknotes, facilitating banknote detection. When the banknote is transported to the designated position, the third electric push rod 39 is activated. The output end of the third electric push rod 39 drives the connecting plate 391 to move, which in turn drives the pen-shaped cylinder 392 to move until the pressure roller moves above the banknote. Then, the pen-shaped cylinder 392 is activated, which pushes the push rod 394 to one side, flattening the banknote through the pressure roller, thus keeping the banknote flat and facilitating detection. During the pushing process, the push rod 394 drives the sliding rod 395 to move. The sliding rod 395 slides on the fixed rod 393, which limits the movement of the sliding rod 395 in the horizontal direction.

[0038] like Figure 4 andFigure 6 As shown, a photoelectric switch 310 is fixedly connected to the side wall of the second side plate 35, and two retractable rods 396 are fixedly connected to the top of the connecting plate 391. The tops of the retractable rods 396 are all fixedly connected to the top inner wall of the movable box 3. The photoelectric switch 310 is electrically connected to the third electric push rod 39.

[0039] The photoelectric switch 310 provided by the present invention is used to monitor the conveying position of banknotes. When the banknotes are conveyed to the designated position, the photoelectric switch 310 transmits a signal to the control system, which then controls the opening of the third electric push rod 39 and then flattens the banknotes.

[0040] like Figure 7 As shown, the top of each banknote frame 23 is rotatably connected to a pressure plate 231 via a rotating rod. One end of each rotating rod is fixedly connected to a gear 256. Each gear 256 has a rack 255 on one side, and each gear 256 meshes with an adjacent rack 255. The outer sides of each rack 255 are fixedly connected to a crossbar 25 via a connecting block. One side of the crossbar 25 is provided with a driving mechanism.

[0041] The pressure plate 231 provided by this invention is used to flatten banknotes, facilitating the individual picking up of banknotes. When flattening is required, the drive mechanism is activated, which drives the crossbar 25 to move. The crossbar 25 drives the rack 255 to move, which drives the gear 256 to rotate. The gear 256 drives the rotating rod to rotate, which drives the pressure plate 231 to rotate until the banknotes are pressed into a tight state, ensuring the flatness of the banknotes.

[0042] like Figure 8 As shown, the driving mechanism includes a protective box 24 fixed to the outer wall of the cash register frame 2. A reciprocating screw 252 is rotatably connected between the protective box 24 and the bottom of the movable box 3 via a bearing. A lifting plate 251 is threaded onto the reciprocating screw 252. The lifting plate 251 is fixed to the side wall of the crossbar 25. Two guide rods 253 are fixed between the movable box 3 and the protective box 24. The lifting plate 251 is slidably connected to the two guide rods 253. A motor 254 is fixed to the bottom of the protective box 24. The output shaft of the motor 254 is fixed to the bottom of the reciprocating screw 252.

[0043] The driving mechanism provided by the present invention is used to drive the rack 255 to move. By turning on the motor 254, the output shaft of the motor 254 drives the reciprocating screw 252 to rotate, the reciprocating screw 252 drives the lifting plate 251 to move, the lifting plate 251 drives the crossbar 25 to move, and the crossbar 25 drives the rack 255 to move. The bottom of the movable end of the pressure plate 231 is provided with a pressure sensor. When the pressure reaches the set value, the motor 254 stops working.

[0044] likeFigure 7 As shown, a coin return frame 21 is fixed to the side wall of the cash register 2 near the coin frame 22, which is used to collect problematic coins reported by the coin verification probe 37.

[0045] When the coin return frame 21 provided by the present invention is in use, after being detected by the coin verification probe 37, if the coin is counterfeit or too dirty, it needs to be sucked into the coin return frame 21 by the first suction cup 323. The coin return frame 21 and the coin receiving box 361 are usually set up in two, because there are a lot of coins, and having an extra channel to transport them improves the efficiency of making change.

[0046] Working principle: For coins, coins are inserted through the coin insertion tube 36 and then fed into the first conveyor belt 341. During the input process, the coin verification probe 37 checks the coins. If the coins are correct, they are placed in the coin frame 22 according to their corresponding denominations. The first moving seat 32 is driven to move along the electric guide rail 31 to the appropriate position. Then, the first electric push rod 322 is activated, which drives the first suction cup 323 to move onto the first conveyor belt 341 to pick up the coins. Then, the first bidirectional electric push rod 321 pushes the coins into the corresponding coin frame 22. For making change, the first electric push rod 322 is moved to the corresponding coin frame 22 by the first bidirectional electric push rod 321. Then, the first electric push rod 322 is activated to pick up the corresponding number of coins. Then, the coins are moved to the position of the first conveyor belt 341 by the electric guide rail 31. The first conveyor belt 341 reverses the direction of transport, and the coins are output from the coin collection box 361. For banknotes, the banknotes are inserted through the coin slot 362 and then fed into the second conveyor belt 351. During the feeding process, the banknotes are detected by the banknote detector 38. If the banknotes are correct, they are placed in the banknote frame 23 according to their corresponding denominations. The second moving seat 33 is driven to move along the electric guide rail 31 to the appropriate position. Then, the second electric push rod 332 is activated, which drives the second suction cup 333 to move onto the second conveyor belt 351 to pick up the banknotes. Then, the banknotes are placed into the corresponding banknote frame 23 by the push of the second bidirectional electric push rod 331. For making change, the second electric push rod 332 is first moved to the corresponding banknote frame 23 by the second bidirectional electric push rod 331. Then, the second electric push rod 332 is activated to pick up the corresponding number of banknotes. Then, the banknotes are moved to the position of the second conveyor belt 351 by the electric guide rail 31, and then the banknotes are output from the coin slot 362.

[0047] During the conveying process, the rotation of the shaft of the second conveyor belt 351 drives the drive wheel 352 to rotate, which in turn drives the driven wheel 353 to rotate. The driven wheel 353 then drives the conveyor roller 354 to rotate in the opposite direction, thus facilitating the conveying of banknotes in conjunction with the second conveyor belt 351. When the banknotes are conveyed to the designated position, the third electric push rod 39 is activated. The output end of the third electric push rod 39 drives the connecting plate 391 to move, which in turn drives the pen-shaped cylinder 392 to move until the pressure roller moves above the banknotes. Then, the pen-shaped cylinder 392 is activated, which pushes the push rod 394 to one side, and the pressure roller flattens the banknotes, keeping them flat for easy inspection. During the pushing process, the push rod 394 drives the slide rod 395 to move. The slide rod 395 slides on the fixed rod 393, which limits the slide rod 395 to move horizontally.

[0048] By turning on the motor 254, the output shaft of the motor 254 drives the reciprocating screw 252 to rotate, which in turn drives the lifting plate 251 to move. The lifting plate 251 then drives the crossbar 25 to move, which in turn drives the rack 255 to move. The rack 255 then drives the gear 256 to rotate, which in turn drives the rotating rod to rotate. The rotating rod then drives the pressure plate 231 to rotate, until the banknote is pressed into a tight state, ensuring the banknote is flat.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid change-making system for elderly meal assistance, characterized in that: It includes an ordering module, a payment module, and a food pickup module; the ordering module includes an ordering unit for providing menu selection and generating a menu, a settlement unit for calculating menu prices, and a payment unit based on the menu prices and the payment generated by the payment module; the ordering module is implemented using a touch screen. The payment module includes an input unit for receiving cash payments from customers, a scanning unit for verifying the authenticity of cash, and a change unit for calculating the change amount to be given and generating a change scheme based on a preset change strategy. The payment module is implemented using a POS device, and the ordering module and the payment module are connected via a signal. The food collection module includes a kitchen order receiving unit that is signal-connected to the ordering module, a processing unit for processing orders for customers, and a reminder unit for reminding customers to collect their food.

2. The rapid change system for elderly meal assistance according to claim 1, characterized in that: The POS device includes a base (1), a movable box (3) fixedly connected to the top of the base (1), and a display screen (4) fixedly connected to the top of the movable box (3); a cash register frame (2) is slidably connected to the inner wall of the base (1); the cash register frame (2) is provided with multiple coin frames (22) and banknote frames (23); an electric guide rail (31) is fixedly connected to the bottom inner wall of the movable box (3), and a first movable seat (32) and a second movable seat (33) are slidably connected to both ends of the electric guide rail (31); the first movable seat (32) The bottom of the second movable seat (33) is fixedly connected to a first bidirectional electric actuator (321), and both ends of the first bidirectional electric actuator (321) are fixedly connected to a first electric actuator (322) through a mounting plate. The output end of the first electric actuator (322) is equipped with a first suction cup (323). The bottom of the second movable seat (33) is fixedly connected to a second bidirectional electric actuator (331), and both ends of the second bidirectional electric actuator (331) are fixedly connected to a second electric actuator (332) through a mounting plate. The output end of the second electric actuator (332) is equipped with multiple second suction cups (333).

3. The rapid change-making system for elderly meal assistance according to claim 2, characterized in that: The movable box (3) is fixedly connected to a first side plate (34) at one end near the first suction cup (323). The side wall of the first side plate (34) is fitted with a first conveyor belt (341) through a roller. The movable box (3) is fixedly connected to a coin insertion tube (36) and a coin receiving box (361) on the side wall near the first conveyor belt (341). The coin insertion tube (36) is located above the coin receiving box (361), and a coin verification probe (37) is located above the first conveyor belt (341).

4. The rapid change system for elderly meal assistance according to claim 3, characterized in that: The movable box (3) is fixed to a second side plate (35) at one end near the second suction cup (333). A second conveyor belt (351) is sleeved on the side wall of the second side plate (35) via a rotating shaft. A coin slot (362) is opened on the side wall of the movable box (3) near the second conveyor belt (351). A banknote verification probe (38) is provided above the second conveyor belt (351).

5. The rapid change-making system for elderly meal assistance according to claim 4, characterized in that: A drive wheel (352) is fixedly connected to one end of the rotating shaft near the coin slot (362). A conveying roller (354) is rotatably connected to the second side wall via a rotating shaft. A driven wheel (353) is fixedly connected to one end of the rotating shaft. The driven wheel (353) meshes with the drive wheel (352).

6. The rapid change-making system for elderly meal assistance according to claim 5, characterized in that: A third electric actuator (39) is fixedly connected to the top inner wall of the movable box (3). A connecting plate (391) is fixedly connected to the output end of the third electric actuator (39). A pen-shaped cylinder (392) is fixedly connected to the bottom of the connecting plate (391). A push rod (394) is fixedly connected to the output end of the pen-shaped cylinder (392). A fixed rod (393) is fixedly connected to one end of the housing of the pen-shaped cylinder (392). A pressure roller is rotatably connected to the bottom of both the push rod (394) and the fixed rod (393). Two sliding rods (395) are fixedly connected to the side wall of the push rod (394). Both sliding rods (395) are slidably connected to the fixed rod (393).

7. The rapid change-making system for elderly meal assistance according to claim 6, characterized in that: A photoelectric switch (310) is fixedly connected to the side wall of the second side plate (35). Two retractable rods (396) are fixedly connected to the top of the connecting plate (391). The top of each retractable rod (396) is fixedly connected to the top inner wall of the movable box (3). The photoelectric switch (310) is electrically connected to the third electric push rod (39).

8. The rapid change system for elderly meal assistance according to claim 7, characterized in that: The top of each banknote frame (23) is rotatably connected to a pressure plate (231) via a rotating rod. A gear (256) is fixedly connected to one end of each rotating rod. A rack (255) is provided on one side of each gear (256). Each gear (256) meshes with an adjacent rack (255). A crossbar (25) is fixedly connected to the outer side of each rack (255) via a connecting block. A drive mechanism is provided on one side of each crossbar (25).

9. The rapid change system for elderly meal assistance according to claim 8, characterized in that: The drive mechanism includes a protective box (24) fixed to the outer wall of the cash register frame (2). A reciprocating screw (252) is rotatably connected between the protective box (24) and the bottom of the movable box (3) via a bearing. A lifting plate (251) is threaded onto the reciprocating screw (252). The lifting plate (251) is fixed to the side wall of the crossbar (25). Two guide rods (253) are fixed between the movable box (3) and the protective box (24). The lifting plate (251) is slidably connected on the two guide rods (253). A motor (254) is fixed to the bottom of the protective box (24). The output shaft of the motor (254) is fixed to the bottom of the reciprocating screw (252).

10. A rapid change-making system for elderly meal assistance according to claim 9, characterized in that: The cash register (2) has a coin return frame (21) fixed to the side wall near the coin frame (22) for collecting problematic coins reported by the coin verification probe (37).

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