Unmanned vending cabinet

Abstract

The invention discloses an unmanned vending cabinet, which belongs to the technical field of unmanned vending cabinets, and comprises a base and a main body frame, an operation table is fixedly mounted at one end of the base, and a touch screen and an operation rocker are arranged on the operation table; a plurality of goods grooves and a discharging groove are formed in the upper end face of the base, a pre-storage groove is formed in one end of each goods groove, and an automatic goods supplementing mechanism is installed in each pre-storage groove. Compared with the prior art, the unmanned vending cabinet has the advantages that commodities are purchased in an operation grabbing mode, entertainment is enhanced, and the shopping experience of a user is improved; goods are temporarily stored in the pre-storage groove, and automatic replenishment is performed in the goods groove through the automatic replenishment mechanism in the pre-storage groove, so that the manual replenishment frequency can be greatly reduced, and the personnel cost is saved; manual replenishment can be completed through the replenishment channel on the premise that the cabinet door is not opened and cold air does not overflow, energy consumption is reduced, meanwhile, the interior of the cabinet is prevented from being polluted, and merchant operation and cost control are facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned vending cabinets, and in particular relates to an unmanned vending cabinet. Background Art

[0002] There are many types of refrigerated food vending devices on the market, including traditional refrigerators, freezers and early types of unmanned vending cabinets. These devices are widely used in food retail, fast food restaurants and other occasions, and can provide consumers with instant frozen and refrigerated food. With the rapid development of the Internet and Internet of Things technology, the concept of unmanned vending cabinets as convenient shopping terminals has gradually become popular, and has gradually emerged in the fields of fast food, beverages, etc.

[0003] However, existing unmanned vending machines for refrigerated and frozen foods require manual opening of the cabinet doors for replenishment. Opening the cabinet doors during replenishment will cause a large amount of cold air to overflow, resulting in a large change in the temperature inside the cabinet, especially in summer. After replenishment is completed, a long period of high-power refrigeration is required to restore the original temperature, which greatly increases energy consumption. At the same time, it is easy to cause contamination inside the cabinet, which has an adverse impact on the merchants' operating efficiency and cost control.

[0004] Therefore, in view of the above technical problems, it is necessary to provide an unmanned vending machine.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to provide an unmanned vending machine, which can solve the problem that opening the cabinet door when replenishing goods will cause a large amount of cold air to overflow, greatly increase energy consumption, and easily cause pollution in the cabinet, which has an adverse effect on the merchant's operating efficiency and cost control.

[0007] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0008] An unmanned vending cabinet comprises a base and a main frame;

[0009] An operating table is fixedly mounted on one end of the base, and a touch screen and an operating joystick are arranged on the operating table;

[0010] The upper end surface of the base is provided with multiple groups of cargo slots and discharge slots, one end of each group of cargo slots is provided with a pre-storage slot, and an automatic replenishment mechanism is installed inside the pre-storage slot;

[0011] An upwardly inclined cargo adding channel is provided on the side wall of the pre-storage tank, and a second sealing plate is rotatably connected to one end of the cargo adding channel close to the pre-storage tank, and the second sealing plate can only be turned inside the pre-storage tank. A cargo adding platform is fixedly installed on one end of the cargo adding channel away from the pre-storage tank, and a cover plate is installed on the cargo adding platform;

[0012] The main frame includes multiple groups of support rods, multiple groups of glass plates and a top seat, the multiple groups of support rods are respectively fixedly installed on the base, the multiple groups of glass plates are respectively fixedly installed between the multiple groups of support rods, and the top seat is fixedly installed above the multiple groups of support rods;

[0013] A refrigeration mechanism is installed on the top seat, through which the food in the cabinet can be refrigerated or frozen;

[0014] A three-axis moving mechanism is installed below the top seat, and a clamping claw is installed on the three-axis moving mechanism.

[0015] In one or more embodiments of the present invention, a box body is fixedly installed inside the top seat, and an evaporator is installed inside the box body;

[0016] A circulating fan is fixedly installed at the bottom end of the top seat, and multiple groups of first connecting pipes are fixedly installed on the box body. The interiors of the multiple groups of support rods are all hollow in design. The interior of the box body is connected with the interiors of the multiple groups of support rods through the multiple groups of first connecting pipes, and the support rods are provided with air inlets.

[0017] In one or more embodiments of the present invention, the air inlet includes a first air outlet and a second air outlet, an inner wall of the first air outlet is in the same vertical plane as the inner wall of the adjacent glass plate, and the second air outlet is inclined toward the middle position in the cabinet.

[0018] In one or more embodiments of the present invention, at least a compressor, a condenser and a throttle valve are installed inside the refrigeration mechanism, and a refrigerant circulation pipe is provided between the evaporator and the compressor.

[0019] In one or more embodiments of the present invention, the automatic replenishment mechanism includes an electric push rod and a push block, wherein the electric push rod is fixedly mounted at the bottom end inside the pre-storage tank, and the push block is fixedly mounted at the telescopic end of the electric push rod.

[0020] In one or more embodiments of the present invention, an air dividing cavity is provided above the cargo adding passage, and a plurality of blowing holes are provided between the cargo adding passage and the air dividing cavity;

[0021] A gas collecting chamber is provided below the cargo adding passage, and a plurality of exhaust holes are provided between the cargo adding passage and the gas collecting chamber;

[0022] An air distribution pipe is fixedly installed at the bottom end of the top seat, and a second connecting pipe is fixedly installed between the box body and the air distribution pipe;

[0023] A plurality of groups of conduits are fixedly mounted on the gas distribution pipe, and the plurality of groups of conduits are respectively connected to the interior of the gas distribution cavities above the plurality of groups of cargo adding channels;

[0024] A solenoid valve is fixedly installed on the conduit.

[0025] In one or more embodiments of the present invention, an air filter is fixedly installed inside the air collecting chamber;

[0026] An outer frame is fixedly installed on the outer sides of the plurality of groups of support rods, and a bronchial tube is fixedly installed between the outer frame and the gas collecting cavity;

[0027] The interior of the outer frame is hollow, and a third air blowing port is provided on the outer frame. An inner wall of the third air blowing port and the outer wall of the glass plate are in the same vertical plane.

[0028] In one or more embodiments of the present invention, a first sealing plate is rotatably connected to the inside of the discharge chute, and a spring is fixedly installed between the bottom end of the first sealing plate and the inner wall of the discharge chute.

[0029] In one or more embodiments of the present invention, a material taking port is provided on the base, the material taking port is communicated with the interior of the discharge chute, and a baffle is rotatably connected to the interior of the material taking port.

[0030] In one or more embodiments of the present invention, a palmprint recognition module and a voiceprint recognition module are provided on the touch screen.

[0031] Compared with the prior art, the unmanned vending machine of the present invention adopts a control and grabbing method to purchase goods, which enhances entertainment and improves the user's shopping experience;

[0032] By temporarily storing goods in the pre-storage tank and automatically replenishing the goods in the cargo tank through the automatic replenishment mechanism inside the pre-storage tank, the frequency of manual replenishment can be greatly reduced, saving personnel costs;

[0033] The restocking channel allows manual restocking without opening the cabinet door or letting out cold air, saving energy and preventing contamination inside the cabinet, which is beneficial to business operations and cost control.

[0034] At the same time, the goods manually replenished can be cleaned and cooled inside the replenishing channel to prevent the goods from polluting the cabinet and to avoid the impact of the replenished goods on the temperature inside the cabinet as much as possible, which is conducive to the safe and stable operation of the unmanned vending machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 The structure of an unmanned vending machine in one embodiment of the present invention is Figure 1 ;

[0037] Figure 2 The structure of an unmanned vending machine in one embodiment of the present invention is Figure 2 ;

[0038] Figure 3 The structure of an unmanned vending machine in one embodiment of the present invention is Figure 3 ;

[0039] Figure 4 It is a partial cross-sectional view of an unmanned vending machine in front of an embodiment of the present invention;

[0040] Figure 5 A top view of a cross-sectional view of a top seat of an unmanned vending cabinet in one embodiment of the present invention;

[0041] Figure 6 It is a top view of a partial cross-section of an unmanned vending machine in one embodiment of the present invention;

[0042] Figure 7 An unmanned vending machine in one embodiment of the present invention Figure 6 Enlarged view of point A in the middle;

[0043] Figure 8 It is a side cross-sectional view of an unmanned vending machine in a first use state according to an embodiment of the present invention;

[0044] Fig. 9 This is an enlarged view of a refilling channel of an unmanned vending cabinet in one embodiment of the present invention;

[0045] Fig.10 An unmanned vending machine in one embodiment of the present invention Figure 8 Enlarged view of point B in the middle;

[0046] Fig.11 It is a side cross-sectional view of a second usage state of an unmanned vending machine in one embodiment of the present invention.

[0047] Description of main reference numerals:

[0048] 10. Base; 11. Operation table; 111. Touch screen; 112. Operation joystick; 12. Material taking port; 121. Baffle; 13. Cargo slot; 14. Pre-storage slot; 141. Electric push rod; 142. Push block; 15. Material discharging slot; 151. First sealing plate; 152. Spring; 16. Cargo adding channel; 161. Blowing hole; 162. Exhaust hole; 17. Air distribution cavity; 18. Air collecting cavity; 181. Air filter; 19. Second sealing plate; 20. Support Rod; 21, first air outlet; 22, second air outlet; 30, glass plate; 40, top seat; 41, box body; 411, first connecting pipe; 412, refrigerant circulation pipe; 42, air distribution pipe; 43, conduit; 431, solenoid valve; 44, second connecting pipe; 50, refrigeration mechanism; 60, outer frame; 61, third air outlet; 70, loading platform; 71, cover plate; 80, clamp; 90, circulation fan; 100, three-axis moving mechanism; 110, bronchus. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0050] like Figure 1-Figure 11 As shown, an unmanned vending machine in one embodiment of the present invention is designed for unmanned vending of refrigerated and frozen foods, and includes a base 10 and a main frame. An operating table 11 is fixedly installed at the front end of the base 10, and a touch screen 111 and an operating rocker 112 are provided on the operating table 11. The touch screen 111 is provided with a palm print recognition module and a voice print recognition module. Before using the vending machine, the user can first scan the code to log in to the system, and then enter the palm print and voice print to bind the identity. The next time you shop, you only need to identify the palm print and voice print to shop, without repeated login, saving shopping time.

[0051] By operating the rocker 112, the three-axis moving mechanism 100 and the clamping claw 80 in the cabinet can be controlled to grab goods, thereby enhancing the entertainment of the vending cabinet and improving the shopping experience of users.

[0052] like Figure 2 As shown, the upper end surface of the base 10 is provided with a plurality of groups of cargo slots 13, and refrigerated or frozen foods are classified and stored in the plurality of groups of cargo slots 13 so that users can grab the required categories of goods.

[0053] like Figure 2 and Figure 4As shown, a discharge slot 15 is provided at the corner of the upper end surface of the base 10, and the goods picked up by the user can be placed inside the discharge slot 15. A first sealing plate 151 is rotatably connected to the top of the discharge slot 15 through a rotating shaft. The first sealing plate 151 fits with the inner wall of the discharge slot 15 to seal the discharge slot 15 and prevent cold air from overflowing through the discharge slot 15.

[0054] A spring 152 is fixedly installed between the bottom end of the first sealing plate 151 and the inner wall of the discharge chute 15, and the first sealing plate 151 can be elastically rotated in the discharge chute 15 with the rotation axis as the center through the spring 152. When the user grabs the goods and puts them into the discharge chute 15, the first sealing plate 151 can be pressed down to rotate the first sealing plate 151, so that the discharge chute 15 is opened. After the goods enter the discharge chute 15, the first sealing plate 151 can be automatically reset immediately to realize the automatic sealing of the discharge chute 15, thereby minimizing the overflow of cold air and reducing energy consumption.

[0055] like Figure 1 As shown, a feeding port 12 is provided on the base 10, and the feeding port 12 is connected to the inside of the discharging trough 15. After the goods purchased by the user enter the inside of the discharging trough 15, the user can take the goods out through the feeding port 12. A baffle 121 is connected to the inside of the feeding port 12 by rotating through a rotating shaft. The baffle 121 is used to protect the inside of the feeding port 12 to prevent the inside of the feeding port 12 from being contaminated, and at the same time, it can prevent the goods from directly falling out through the feeding port 12 after entering the inside of the discharging trough 15, thereby ensuring the safety of the goods purchased by the user.

[0056] like Figure 1-Figure 3 As shown, the main frame includes four groups of support rods 20, four groups of glass plates 30 and a top seat 40. The four groups of support rods 20 are respectively fixedly installed at the four corners of the upper end surface of the base 10, the four groups of glass plates 30 are respectively fixedly installed between the four groups of support rods 20, and the top seat 40 is fixedly installed at the top of the four groups of support rods 20. The cabinet body is formed by the four groups of support rods 20, the four groups of glass plates 30 and the top seat 40, wherein the four groups of glass plates 30 serve as the outer wall of the cabinet body, so that the user can observe the goods in the cabinet from all directions and perform the grabbing operation of the goods.

[0057] like Figure 2 and Figure 5 As shown, a refrigeration mechanism 50 is installed on one side of the top seat 40, and the refrigeration mechanism 50 can realize the refrigeration or freezing of food in the cabinet. At least a compressor, a condenser and a throttle valve are installed inside the refrigeration mechanism 50, and a box body 41 is fixedly installed inside the top seat 40, and an evaporator is installed inside the box body 41. Among them, a refrigerant circulation pipe 412 is provided between the evaporator and the compressor for the circulation of the refrigerant in the evaporator.

[0058] The refrigeration system is composed of the evaporator in the box body 41 and the compressor, condenser and throttle valve in the refrigeration mechanism 50, so as to realize the refrigeration in the cabinet. By controlling the operation of the refrigeration system, the food in the cabinet can be freely switched between refrigeration and freezing, so as to control the operation of the unmanned vending cabinet according to the demand for goods.

[0059] like Figure 3 As shown, a circulating fan 90 is fixedly installed at the bottom end of the top seat 40, and the output end of the circulating fan 90 is connected to the inside of the box body 41, and the input end of the circulating fan 90 is connected to the inside of the cabinet. The circulating fan 90 can realize the circulation of gas in the cabinet and continuously cool the inside of the box body 41 to maintain a constant temperature in the cabinet.

[0060] like Figure 2 , Figure 5 and Figure 8 As shown, four groups of first connecting pipes 411 are fixedly installed on the box body 41, and the interiors of the four groups of support rods 20 are all hollow. The interior of the box body 41 is connected to the interiors of the four groups of support rods 20 through multiple groups of first connecting pipes 411, and air inlets are provided on the support rods 20. After the gas in the cabinet is sent into the interior of the box body 41, it can enter the interiors of the four groups of support rods 20 through the four groups of first connecting pipes 411, and finally enter the cabinet again through the air inlets. That is, the air inlets are dispersed at the four corners of the cabinet to ensure that the cold air can enter the cabinet evenly during the circulation process, so that the temperature at each position in the cabinet is averaged and there is no temperature difference, so as to improve the refrigeration or freezing effect.

[0061] Further, such as Figure 6 and Figure 7 As shown, the air inlet includes a first air outlet 21 and a second air outlet 22, and the first air outlet 21 and the second air outlet 22 can discharge air at the same time. Among them, an inner wall of the first air outlet 21 is in the same vertical plane as the inner wall of the adjacent glass plate 30, that is, the cold air coming out of the first air outlet 21 can just blow the inner wall of the glass plate 30. The second air outlet 22 is inclined toward the middle position in the cabinet, that is, the cold air coming out of the second air outlet 22 blows toward the middle position in the cabinet. By blowing air in different directions, the cold air can be further dispersed, making the cold air flow more uniform and comprehensive.

[0062] Specifically, since the temperature inside the cabinet is low, while the temperature outside the cabinet is room temperature and relatively high, water mist will form on the inner wall of the glass plate 30 due to the temperature difference between the inside and the outside. The cold wind blown out through the first air outlet 21 blows the inner wall of the glass plate 30, which can effectively prevent the internal mist of the glass plate 30 and ensure the high transparency of the glass plate 30, so that the user can observe the goods in the cabinet and operate to grab the goods.

[0063] like Figure 3 and Figure 4As shown, a three-axis moving mechanism 100 is installed at the bottom end of the top seat 40, and the three-axis moving mechanism 100 includes an X-axis moving assembly, a Y-axis moving assembly and a Z-axis moving assembly, wherein the X-axis moving assembly is installed at the bottom end of the top seat 40, and the Z-axis moving assembly is installed on the X-axis moving assembly, both of which are driven to move by a motor and a ball screw, and the Y-axis moving assembly is installed on the Z-axis moving assembly, which is driven to move by a telescopic cylinder.

[0064] The clamp 80 is installed on the Y-axis moving component and adopts a pneumatic clamp, which can achieve stable grasping of the goods and will not fall after grasping, ensuring the user's experience.

[0065] The clamping jaw 80 and the three-axis moving mechanism 100 are both controlled by the operating joystick 112 , and the user can control the movement of the clamping jaw 80 and grab the desired goods by operating the joystick 112 .

[0066] like Figure 2 and Figure 6 As shown, one end of each of the plurality of cargo slots 13 is provided with a pre-storage slot 14 , and the pre-storage slot 14 stores corresponding types of goods for supplying the cargo slots 13 .

[0067] like Figure 8 As shown, an automatic replenishment mechanism is installed inside the pre-storage slot 14. The automatic replenishment mechanism includes an electric push rod 141 and a push block 142. The electric push rod 141 is fixedly installed at the bottom end of the pre-storage slot 14, and the push block 142 is fixedly installed at the telescopic end of the electric push rod 141. The electric push rod 141 can push the push block 142 to move and push the goods stored in the pre-storage slot 14 upward. Among them, the upper end surface of the push block 142 is an inclined surface facing the cargo slot 13. Under the action of the inclined surface, the goods in the pre-storage slot 14 can enter the cargo slot 13 after being pushed out, and the lower end surface of the cargo slot 13 is also an inclined surface. After entering the cargo slot 13, the goods can slide forward in an orderly manner without being piled up at the rear end, ensuring that the goods in the cargo slot 13 are dispersed and distributed for users to grab.

[0068] Specifically, by pushing out the goods stored in the pre-storage slot 14, the goods in the cargo slot 13 can be automatically replenished, which greatly reduces the frequency of manual replenishment and saves labor costs.

[0069] like Figure 8 and Fig. 9As shown, an upwardly inclined cargo adding passage 16 is provided on the side wall of the pre-storage tank 14. After the goods enter the cargo adding passage 16, they will slide toward the pre-storage tank 14 so as to be replenished into the pre-storage tank 14 through the cargo adding passage 16. A second sealing plate 19 is rotatably connected to one end of the cargo adding passage 16 close to the pre-storage tank 14. The second sealing plate 19 is used to separate the pre-storage tank 14 from the cargo adding passage 16. The second sealing plate 19 can only be turned toward the pre-storage tank 14, but cannot be turned toward the cargo adding passage 16. In other words, when the vending machine is operating normally, the second sealing plate 19 will not be turned and opened toward the cargo adding passage 16 due to the squeezing of the goods in the pre-storage tank 14, ensuring that cold air will not enter the cargo adding passage 16 from the pre-storage tank 14 to prevent the cold air from overflowing.

[0070] A loading platform 70 is fixedly installed at one end of the loading channel 16 away from the pre-storage tank 14, and the interior of the loading channel 16 is connected to the interior of the loading platform 70. When goods are added to the loading platform 70, the goods will be automatically drawn into the loading channel 16. The loading platform 70 is rotatably mounted with a cover plate 71, and the cover plate 71 is used to seal the loading platform 70, that is, to indirectly seal the interior of the loading channel 16.

[0071] The cover plate 71 and the loading platform 70 can be fixed by magnetic attraction or snap connection to ensure a sealing effect.

[0072] Specifically, Fig.11 Combination Figure 8 As shown, when it is necessary to replenish the pre-storage slot 14, it means that the goods in the pre-storage slot 14 are basically completely pushed out by the push block 142. At this time, the push block 142 is located at the top of the pre-storage slot 14. The push block 142 will form a blockage for the second sealing plate 19, making it impossible for the second sealing plate 19 to be opened. That is, in the process of adding goods to the loading channel 16 through the loading platform 70, the second sealing plate 19 is blocked and cannot be opened, so the goods can only be temporarily stored in the loading channel 16.

[0073] When a sufficient amount of goods is added to the cargo channel 16, the cover 71 is closed to seal the interior of the cargo channel 16, and the push block 142 is driven down by the electric push rod 141 to remove the obstruction of the second sealing plate 19. At this time, the goods in the cargo channel 16 have the potential energy to slide downward, so they can break through the second sealing plate 19 and enter the pre-storage tank 14, thereby completing manual replenishment without any cold air overflow, avoiding affecting the temperature inside the cabinet and saving energy.

[0074] like Figure 3 and Figure 5As shown, an air distribution pipe 42 is fixedly installed at the bottom end of the top seat 40, and a second connecting pipe 44 is fixedly installed between the box body 41 and the air distribution pipe 42. The box body 41 and the inside of the air distribution pipe 42 are connected through the second connecting pipe 44, and the cold air inside the box body 41 can also enter the inside of the air distribution pipe 42 through the second connecting pipe 44.

[0075] A plurality of groups of conduits 43 are fixedly mounted on the gas distribution pipe 42 , and a solenoid valve 431 is fixedly mounted on the conduit 43 . The on-off of each group of conduits 43 can be independently controlled by the solenoid valve 431 .

[0076] like Figure 8 and Fig. 9 As shown, an air dividing cavity 17 is provided above the cargo adding channel 16, and the other ends of the multiple groups of conduits 43 are respectively connected to the interior of the air dividing cavity 17 above the multiple groups of cargo adding channels 16, that is, the cold air entering the air dividing pipe 42 can also enter the interior of the air dividing cavity 17 through the conduit 43.

[0077] A plurality of blowing holes 161 are provided between the cargo adding channel 16 and the air dividing chamber 17 , and the cold air entering the air dividing chamber 17 can be blown into the cargo adding channel 16 through the blowing holes 161 to purge and clean the commodities temporarily stored in the cargo adding channel 16 .

[0078] Specifically, during the manual replenishment process, the surface of the goods temporarily stored in the replenishment channel 16 may have dust or other dirt, which may pollute the cabinet if they directly enter the pre-storage tank 14. During the period when the goods are temporarily stored in the replenishment channel 16, by opening the corresponding solenoid valve 431, the cold air circulating in the cabinet can enter the air distribution cavity 17 through the second connecting pipe 44, the air distribution pipe 42 and the guide tube 43 in sequence, and finally blow out through the blowing holes 161, so as to purge and clean the goods in the replenishment channel 16 to remove the dust or dirt on the surface, and prevent the replenished goods from polluting the cabinet.

[0079] It is worth noting that by blowing cold air to the replenished goods inside the replenishing channel 16, the goods can also be cooled to reduce the temperature of the replenished goods and avoid the replenished goods from affecting the temperature inside the cabinet as much as possible, which is conducive to the safe and stable operation of the unmanned vending machine.

[0080] Preferably, the openings of the plurality of blowing holes 161 may be inclined toward the side close to the second sealing plate 19 , so that air can be blown obliquely downward to assist the cargo inside the cargo adding channel 16 to move downward and avoid cargo jamming inside the cargo adding channel 16 .

[0081] An air collecting chamber 18 is provided below the cargo adding channel 16 , and a plurality of exhaust holes 162 are provided between the cargo adding channel 16 and the air collecting chamber 18 . The cold air blown into the cargo adding channel 16 eventually enters the air collecting chamber 18 through the plurality of exhaust holes 162 below, thereby realizing the smooth flow of gas inside the cargo adding channel 16 .

[0082] An air filter 181 is fixedly installed inside the air collecting chamber 18. The air filter 181 can filter the cold air entering the air collecting chamber 18 to collect dust or impurities and avoid air pollution.

[0083] like Figure 3 As shown, an outer frame 60 is fixedly installed on the outer side of the four groups of support rods 20, and the outer frame 60 is located near the top. The inner part of the outer frame 60 adopts a hollow design, and a bronchial tube 110 is fixedly installed between the outer frame 60 and the air collecting cavity 18. The cold air entering the air collecting cavity 18 can be introduced into the inner part of the outer frame 60 through the bronchial tube 110 after being filtered by the air filter 181.

[0084] like Fig.10 As shown, the outer frame 60 is provided with a third air blowing port 61, and the cold air entering the inner part of the outer frame 60 can be blown out through the third air blowing port 61. Among them, an inner wall of the third air blowing port 61 and the outer wall of the glass plate 30 are in the same vertical plane, that is, the cold air blown out through the third air blowing port 61 can just blow the outer wall of the glass plate 30.

[0085] Specifically, during the manual replenishment process, the cold air generated by blowing the goods can enter the outer frame 60 through the bronchial tube 110, and finally blow out through the third blowing port 61 to achieve the blowing and cleaning of the outer wall of the glass plate 30. That is, each manual replenishment can automatically achieve the blowing and cleaning of the outer wall of the glass plate 30 to prevent dust from adhering to the outer wall of the glass plate 30 due to long-term cleaning, which is beneficial to the use of the vending machine.

[0086] When in use, by controlling the operation of the refrigeration system, a refrigerated or frozen environment can be formed in the cabinet, so that foods and other commodities that need to be refrigerated or frozen can be stored in the cabinet for customers to choose. When a customer uses the vending cabinet for the first time, he can log in to the system by scanning the QR code on the touch screen 111, enter the palm print and voice print information, and complete the identity binding. When using it again, he only needs to verify the palm print and voice print information in turn to control the three-axis moving mechanism 100 and the clamping claw 80 by operating the rocker 112 to grab the goods on the cargo slot 13, and push the first sealing plate 151 through the clamping claw 80, put the goods into the discharge slot 15, and open the baffle 121 to take the goods. A scan code payment system should also be set on the touch screen 111, and the customer can scan the code to pay for the goods.

[0087] During the operation of the vending machine, the electric push rod 141 drives the push block 142 to push out the goods stored in the pre-storage slot 14, so that the goods can be automatically replenished in the cargo slot 13.

[0088] When it is necessary to manually replenish the pre-storage tank 14, the push block 142 is located at the top of the pre-storage tank 14, and the push block 142 will block the second sealing plate 19, so that the second sealing plate 19 cannot be opened. At this time, the staff can open the cover plate 71, load the goods into the inside of the cargo adding channel 16, and then close the cover plate 71 to seal the inside of the cargo adding channel 16. Then, by opening the corresponding solenoid valve 431, the cold air circulating in the cabinet can enter the inside of the gas dividing cavity 17 through the second connecting pipe 44, the gas dividing pipe 42 and the conduit 43 in sequence, and finally blow out through a number of blowing holes 161, and the goods inside the cargo adding channel 16 are purged and cleaned to remove dust or dirt on the surface, and the goods are cooled down. Finally, the push block 142 is driven down by the electric push rod 141, so that the second sealing plate 19 loses its obstruction, and the goods inside the cargo adding channel 16 break through the second sealing plate 19 and automatically slide into the pre-storage tank 14, completing the manual replenishment without overflowing the cold air.

[0089] Compared with the prior art, the unmanned vending machine of the present invention adopts a controlled grabbing method to purchase goods, which enhances entertainment and improves the user's shopping experience; by temporarily storing goods in the pre-storage slot 14 and automatically replenishing the goods slot 13 through the automatic replenishment mechanism inside the pre-storage slot 14, the frequency of manual replenishment can be greatly reduced, saving personnel costs; through the replenishment channel 16, manual replenishment can be completed without opening the cabinet door and without the overflow of cold air, saving energy consumption, while avoiding contamination in the cabinet, which is beneficial to the merchant's operation and cost control; at the same time, the manually replenished goods can be cleaned and cooled in the replenishment channel 16 to prevent the goods from polluting the cabinet and to avoid the replenished goods from affecting the temperature in the cabinet as much as possible, which is beneficial to the safe and stable operation of the unmanned vending machine.

[0090] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0091] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An unmanned vending machine, characterized in that: include: A base, one end of which is fixedly mounted with an operating table, on which a touch screen and an operating joystick are provided; The upper end surface of the base is provided with multiple groups of cargo slots and discharge slots, one end of each group of cargo slots is provided with a pre-storage slot, and an automatic replenishment mechanism is installed inside the pre-storage slot; An upwardly inclined cargo adding channel is provided on the side wall of the pre-storage tank, and a second sealing plate is rotatably connected to one end of the cargo adding channel close to the pre-storage tank, and the second sealing plate can only be turned inside the pre-storage tank. A cargo adding platform is fixedly installed on one end of the cargo adding channel away from the pre-storage tank, and a cover plate is installed on the cargo adding platform; A main frame, the main frame comprising a plurality of groups of support rods, a plurality of groups of glass plates and a top seat, the plurality of groups of support rods are respectively fixedly mounted on the base, the plurality of groups of glass plates are respectively fixedly mounted between the plurality of groups of support rods, and the top seat is fixedly mounted above the plurality of groups of support rods; A refrigeration mechanism is installed on the top seat, through which the food in the cabinet can be refrigerated or frozen; A three-axis moving mechanism is installed below the top seat, and a clamping claw is installed on the three-axis moving mechanism.

2. The unmanned vending machine according to claim 1, characterized in that: A box body is fixedly installed inside the top seat, and an evaporator is installed inside the box body; A circulating fan is fixedly installed at the bottom end of the top seat, and multiple groups of first connecting pipes are fixedly installed on the box body. The interiors of the multiple groups of support rods are all hollow in design. The interior of the box body is connected with the interiors of the multiple groups of support rods through the multiple groups of first connecting pipes, and the support rods are provided with air inlets.

3. The unmanned vending machine according to claim 2, characterized in that: The air inlet comprises a first air outlet and a second air outlet, an inner wall of the first air outlet and an inner wall of an adjacent glass plate are in the same vertical plane, and the second air outlet is inclined toward the middle position in the cabinet.

4. The unmanned vending machine according to claim 2, characterized in that: At least a compressor, a condenser and a throttle valve are installed inside the refrigeration mechanism, and a refrigerant circulation pipe is arranged between the evaporator and the compressor.

5. The unmanned vending machine according to claim 1, characterized in that: The automatic replenishment mechanism comprises an electric push rod and a push block, wherein the electric push rod is fixedly mounted at the bottom end inside the pre-storage tank, and the push block is fixedly mounted at the telescopic end of the electric push rod.

6. The unmanned vending machine according to claim 5, characterized in that: An air dividing cavity is arranged above the cargo adding passage, and a plurality of blowing holes are opened between the cargo adding passage and the air dividing cavity; A gas collecting chamber is provided below the cargo adding passage, and a plurality of exhaust holes are provided between the cargo adding passage and the gas collecting chamber; An air distribution pipe is fixedly installed at the bottom end of the top seat, and a second connecting pipe is fixedly installed between the box body and the air distribution pipe; A plurality of groups of conduits are fixedly mounted on the gas distribution pipe, and the plurality of groups of conduits are respectively connected to the interior of the gas distribution cavities above the plurality of groups of cargo adding channels; A solenoid valve is fixedly installed on the conduit.

7. The unmanned vending machine according to claim 6, characterized in that: An air filter is fixedly installed inside the air collecting cavity; An outer frame is fixedly installed on the outer sides of the plurality of groups of support rods, and a bronchial tube is fixedly installed between the outer frame and the gas collecting cavity; The interior of the outer frame is hollow, and a third air blowing port is provided on the outer frame. An inner wall of the third air blowing port and the outer wall of the glass plate are in the same vertical plane.

8. The unmanned vending machine according to claim 1, characterized in that: A first sealing plate is rotatably connected inside the discharge chute, and a spring is fixedly installed between the bottom end of the first sealing plate and the inner wall of the discharge chute.

9. The unmanned vending machine according to claim 8, characterized in that: The base is provided with a material taking port, the material taking port is communicated with the inside of the material discharging trough, and a baffle is rotatably connected inside the material taking port.

10. The unmanned vending machine according to claim 1, characterized in that: The touch screen is provided with a palmprint recognition module and a voiceprint recognition module.

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