Automatic heating and freezing all-in-one machine
By designing an integrated machine for automatic heating and ice condensation, using refrigeration components, cylindrical evaporators and electromagnetic heaters, the automatic heating and ice condensation treatment of beverages are realized, which solves the problem of lack of heating and ice condensation services in the prior art, and improves the degree of intelligence and operation convenience.
Patent Information
- Application Number
- CN202421652194.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing technology lacks supporting service facilities that can heat ice-condensing drinks for people, and cannot meet people's needs for heating and ice-condensing drinks.
An automatic heating and ice condensation integrated machine is designed, including a chassis with refrigeration components installed inside. A condenser refrigerator and heating box are fixed on the left and right sides of the top of the chassis. The condenser refrigerator and heating box are equipped with a detection room and a greenhouse, equipped with a cylindrical evaporator and an electromagnetic heater. The automatic feeding and heating or ice condensation treatment of beverages is achieved through feeding components and electric push rods.
Automatic ice condensation and heating treatment of beverages is realized, meeting people's needs for heating or condensation of beverages, simple and convenient operation, and high intelligence, avoiding the deformation of the outer packaging of beverage plastics due to heating.
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Figure CN222773546U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of intelligent terminals, in particular to an automatic heating and ice-condensing integrated machine. Background Art
[0002] At present, tourist attractions, entertainment venues and public places lack supporting service facilities that can heat and condense ice drinks for people, which cannot meet people's needs for heating and condensing drinks. In this regard, we have designed an automatic heating and condensing ice machine to meet people's needs for heating or condensing drinks. Utility Model Content
[0003] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the utility model is to provide an automatic heating and ice-condensing machine, which can realize automatic ice-condensing and heating processing of beverages, has a high degree of intelligence, is simple and convenient to operate, and can meet people's needs for heating or condensing beverages.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] An automatic heating and condensing machine is provided, comprising a case with a refrigeration assembly installed inside, a condensing box and a heating box are fixed on the left and right sides of the top of the case respectively, and a control box is fixed on the top of the condensing box and the heating box;
[0006] The condensing refrigerator and the heating box are both provided with a detection room and a temperature-control room;
[0007] A take-in and put-out port is provided on one side of the two detection chambers, and a closing door that can be opened and closed automatically is provided at the take-in and put-out port. A feeding assembly that can be vertically lifted and lowered is provided in the two detection chambers. A cylindrical evaporator and an electromagnetic heater are respectively fixed at the position corresponding to the feeding assembly on the bottom surface of the two temperature-controlled chambers.
[0008] Furthermore, partitions for separating the detection chamber and the temperature-control chamber are fixed inside the condensing box and the heating box. The bottom ends of the two feeding assemblies slide through the two partitions and enter the cylindrical evaporator and the electromagnetic heater respectively. The cylindrical evaporator is located in the condensing box, and the electromagnetic heater is located in the heating box.
[0009] Furthermore, electric push rods are fixedly installed on the bottom surfaces of the two temperature-controlled chambers, the feeding assembly includes a bottom plate and a top plate, a group of vertical plates are fixed between the bottom plate and the top plate, a hanging plate is fixed on the top surface of the top plate, the output end of the electric push rod slides through the partition and is fixedly connected to the lower surface of the hanging plate, the bottom end of the bottom plate slides through the partition, and the electric push rod is electrically connected to the control box.
[0010] Furthermore, a scanning device for scanning and identifying text information on the outer packaging of beverages is fixedly installed at the position of the inner wall of the detection chamber corresponding to the feeding component, and a fill light is fixedly installed on the inner wall of the detection chamber. The fill light and the scanning device are both electrically connected to the control box.
[0011] Furthermore, the upper surface of the base plate is rotatably connected to a rotating table, and a second servo motor is embedded and fixed inside the base plate, the rotating shaft of the second servo motor is fixedly connected to the lower surface of the rotating table, and the second servo motor is electrically connected to the control box.
[0012] Furthermore, a workbench is fixed to the bottom surface of the two temperature-controlled chambers, a clearance groove is opened on the top of the workbench, and the bottom plate is slidably fitted in the clearance groove. The cylindrical evaporator and the electromagnetic heater are respectively fixed on the top of the two workbenches. The cylindrical evaporator is provided with a heat exchange tube, and the heat exchange tube is connected to the refrigeration component in the chassis.
[0013] Furthermore, a group of threaded screws are rotatably connected inside the temperature-controlled room, the bottom end of the closing door slides through the partition to enter the temperature-controlled room, and lifting blocks are fixed on both sides of the bottom of the closing door, the threaded screws penetrate the lifting blocks and are threadedly connected to the lifting blocks, the rotating shafts of the two threaded screws penetrate the temperature-controlled room and are fixed with sprockets, the two sprockets are connected by chain transmission, the sprockets are located at the top of the chassis, and the first servo motor is fixedly installed on the inner wall of the chassis through a bracket, the rotating shaft of the first servo motor is fixedly connected to one of the sprockets, and the first servo motor is electrically connected to the control box.
[0014] Furthermore, a touch screen is provided on one side of the control box, the touch screen is electrically connected to the control box, and universal wheels are fixedly installed at the four corners of the bottom surface of the chassis.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. The automatic heating and ice-condensing integrated machine of the utility model can deliver beverages to the cylindrical evaporator or the electromagnetic heater respectively through two feeding components. The refrigeration component in the chassis can circulate the liquid refrigerant to the heat exchange tube in the cylindrical evaporator, so that a low temperature is formed inside the cylindrical evaporator, and the beverage in the cylindrical evaporator is converted into ice cubes, thereby realizing ice condensation of the beverage. The electromagnetic heater can quickly heat the beverage to a preset temperature, and deformation of the plastic outer packaging of the beverage due to heating can be avoided, thereby realizing automatic ice condensation and heating treatment of the beverage, meeting people's needs for heating or condensing beverages.
[0017] 2. The automatic heating and ice-condensing integrated machine of the utility model can drive the feeding assembly to move vertically up and down through the electric push rod, and can quickly deliver the beverage placed on the bottom plate to the cylindrical evaporator or electromagnetic heater, thereby realizing automatic feeding of the beverage with a high degree of automation.
[0018] 3. The automatic heating and ice-condensing machine in the example of the utility model drives the rotating table to rotate by the second servo motor, so that the rotating table can rotate 360°, so that the scanning device can fully scan and identify the text information on the outer packaging of the beverage. The heating time of the beverage can be determined by identifying the beverage information, and the user does not need to select the heating time. The setting of the fill light serves to fill the light for the scanning device. It has a high degree of intelligence and is simple and convenient to operate.
[0019] 4. The automatic heating and ice-condensing machine in the example of the utility model can display the status, options and operation steps of the beverage being heated or frozen in real time through the touch screen. The user controls it through the touch screen, and the universal wheels fixed at the bottom of the chassis facilitate the transfer of the automatic heating and ice-condensing machine.
[0020] 5. The automatic heating and ice-condensing integrated machine of the utility model example drives the sprocket to rotate through the first servo motor, which can simultaneously control the rotation of the threaded screw. The rotation of the threaded screw can drive the lifting block to rise and fall vertically, thereby driving the closing door to rise or fall vertically, thereby realizing automatic opening or closing of the loading and unloading port. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0022] Figure 1 It is a structural schematic diagram of the utility model;
[0023] Figure 2 It is a cross-sectional view of the condensing refrigerator of the utility model;
[0024] Figure 3 It is a cross-sectional view of the condensing refrigerator and the heating box of the utility model;
[0025] Figure 4 It is a cross-sectional view of the workbench and the cylindrical evaporator of the utility model;
[0026] Figure 5 It is a cross-sectional view of the workbench and electromagnetic heater of the utility model;
[0027] Figure 6 It is a cross-sectional view of the feeding assembly of the utility model.
[0028] In the figure, 1. chassis, 2. condensing refrigerator, 3. heating box, 4. control box, 5. touch screen, 6. universal wheel, 7. pick-up and release port, 8. detection chamber, 9. conditioning chamber, 10. closing door, 11. threaded screw, 12. lifting block, 13. sprocket, 14. first servo motor, 15. feeding assembly, 1501. bottom plate, 1502. rotating table, 1503. second servo motor, 1504. vertical plate, 1505. top plate, 1506. hanging plate, 16. fill light, 17. scanning equipment, 18. electric push rod, 19. workbench, 20. make way slot, 21. cylindrical evaporator, 22. electromagnetic heater. DETAILED DESCRIPTION
[0029] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.
[0030] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.
[0031] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.
[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the drawings.
[0035] Example 1: Reference Figure 1-6 The automatic heating and condensing machine shown in the figure comprises a case 1 with a refrigeration component installed inside, a condensing box 2 and a heating box 3 are fixed on the left and right sides of the top of the case 1, and a control box 4 is fixed on the top of the condensing box 2 and the heating box 3;
[0036] The condensing refrigerator 2 and the heating box 3 are both provided with a detection chamber 8 and a temperature-control chamber 9;
[0037] A take-in and put-out port 7 is provided on one side of the two detection chambers 8, and a closing door 10 that can be opened and closed automatically is provided at the take-in and put-out port 7, and a feeding assembly 15 that can be vertically lifted and lowered is provided in the two detection chambers 8. A cylindrical evaporator 21 and an electromagnetic heater 22 are fixed at the positions of the feeding assemblies 15 on the bottom surfaces of the two temperature-control chambers 9, respectively. A touch screen 5 is provided on one side of the control box 4, and the touch screen 5 is electrically connected to the control box 4. Universal wheels 6 are fixedly installed at the four corners of the bottom surface of the chassis 1. Partitions for separating the detection chamber 8 and the temperature-control chamber 9 are fixed inside the condensing refrigerator 2 and the heating box 3. The bottom ends of the two feeding assemblies 15 slide through the two partitions and enter the cylindrical evaporator 21 and the electromagnetic heater 22 respectively. The cylindrical evaporator 21 is located in the condensing refrigerator 2, and the electromagnetic heater 22 is located in the heating box 3. Heat exchange pipes are provided in the cylindrical evaporator 21, and the heat exchange pipes are connected to the refrigeration assembly in the chassis 1.
[0038] The user can give heating instructions, ice-condensing instructions and instructions for closing the access port 7 to the automatic heating and ice-condensing machine by operating the touch screen 5. The touch screen 5 will display the state of the beverage being heated or ice-condensed, options and operation steps. Through the touch screen 5, the user can select the heating or ice-condensing time according to the volume of the beverage. When the beverage needs to be iced, the control box 4 will control the closed door 10 on the ice-condensing refrigerator 2 to slide down after receiving the command signal from the touch screen 5, so that the access port 7 on the ice-condensing refrigerator 2 is opened. The user places the beverage to be iced in the feeding assembly 15, and then the control box 4 controls the feeding assembly 15 to slide vertically into the inside of the cylindrical evaporator 21 to deliver the beverage into the cylindrical evaporator 21. Then the refrigeration assembly in the chassis 1 is started. The refrigeration assembly is composed of existing structures such as a compressor, an expansion valve, a condenser and accessories, and pipelines. The compressor, the expansion valve, the condenser and accessories, the pipelines and the cylindrical evaporator 21 form a complete refrigeration device. The refrigeration device can circulate the liquid refrigerant to the heat exchange tube in the cylindrical evaporator 21, so that a low temperature is formed inside the cylindrical evaporator 21. Within a preset time, the beverage in the cylindrical evaporator 21 is converted into ice cubes to achieve ice condensation of the beverage. After the beverage is frozen, the control box 4 controls the feeding assembly 15 to move up, and lifts the beverage that has completed ice condensation to the inside of the detection chamber 8. The closing door 10 slides down and opens the access port 7. The user can take out the beverage at the specified time.
[0039] When the beverage needs to be heated, the beverage is sent to the electromagnetic heater 22 in the same steps. After the electromagnetic heater 22 is started, the beverage can be quickly heated to a preset temperature, thereby realizing automatic ice condensation and heating of the beverage, and meeting people's needs for heating or condensing the beverage.
[0040] In order to be able to control the vertical lifting of the feeding assembly 15, so that the two feeding assemblies 15 can quickly drive the beverage into the cylindrical evaporator 21 and the electromagnetic heater 22 respectively, further, in this embodiment, the bottom surfaces of the two temperature-control chambers 9 are fixedly installed with electric push rods 18, and the feeding assembly 15 includes a bottom plate 1501 and a top plate 1505, a group of vertical plates 1504 are fixed between the bottom plate 1501 and the top plate 1505, and a hanging plate 1506 is fixed on the top surface of the top plate 1505. The output end of the electric push rod 18 slides through the partition and is fixedly connected to the lower surface of the hanging plate 1506, and the bottom end of the bottom plate 1501 slides through the partition, and the electric push rod 18 is electrically connected to the control box 4. Place the beverage on the upper surface of the bottom plate 1501, and the control box 4 can control the electric push rod 18 to start. The extension and retraction of the electric push rod 18 can drive the hanging plate 1506 to rise and fall vertically, so that the vertical plate 1504 can smoothly pass through the partition. The bottom plate 1501 and the vertical plate 1504 will enter the cylindrical evaporator 21 or the electromagnetic heater 22, and the top plates 1505 on the two feeding components 15 will respectively seal the top openings of the cylindrical evaporator 21 and the electromagnetic heater 22 to avoid the loss of cold air or heat, thereby improving the ice condensation or heating efficiency of the beverage.
[0041] In order to enable the control box 4 to control the closing door 10 to slide vertically downward, in the present embodiment, a group of threaded screws 11 are rotatably connected in the temperature-controlled chamber 9, the bottom end of the closing door 10 slides through the partition to enter the temperature-controlled chamber 9, and lifting blocks 12 are fixed on both sides of the bottom of the closing door 10, the threaded screw 11 penetrates the lifting block 12 and is threadedly connected to the lifting block 12, the rotating shafts of the two threaded screws 11 penetrate the temperature-controlled chamber 9 and are fixed with sprockets 13, the two sprockets 13 are connected by chain transmission, the sprockets 13 are located at the top of the chassis 1, and the inner wall of the chassis 1 is fixedly installed with a first servo motor 14 through a bracket, the rotating shaft of the first servo motor 14 is fixedly connected to one of the sprockets 13, and the first servo motor 14 is electrically connected to the control box 4. The control box 4 controls the first servo motor 14 to start, and the first servo motor 14 drives one of the sprockets 13 to rotate. Through the transmission of the chain, the two sprockets 13 rotate synchronously, and the rotation of the two threaded screws 11 can be controlled at the same time. The rotation of the threaded screw 11 can drive the lifting block 12 to rise and fall vertically, and then drive the closing door 10 to rise or fall vertically through the partition, thereby realizing the automatic opening or closing of the access port 7.
[0042] The beverages mentioned in the above embodiments generally refer to packaged beverages or mineral water available in the market. If the user needs to heat up the beverages they bring, they need to pour the beverages into a paper cup first, and then select a suitable heating or freezing time through the touch screen 5.
[0043] Embodiment 2: The features of this embodiment that are the same as those of Embodiment 1 are not described in detail. The features of this embodiment that are different from those of Embodiment 1 are as follows: Figure 3-6 As shown, in order to enable the automatic heating and ice-condensing machine to automatically identify beverage information and determine the heating time for the beverage, in this embodiment, a scanning device 17 for scanning and identifying text information on the outer packaging of the beverage is fixedly installed at the position of the inner wall of the detection chamber 8 corresponding to the feeding component 15, and a fill light 16 is fixedly installed on the inner wall of the detection chamber 8. The fill light 16 and the scanning device 17 are both electrically connected to the control box 4. The upper surface of the bottom plate 1501 is rotatably connected to a rotating table 1502, and a second servo motor 1503 is embedded and fixed inside the bottom plate 1501. The rotating shaft of the second servo motor 1503 is fixedly connected to the lower surface of the rotating table 1502. The second servo motor 1503 It is electrically connected to the control box 4, and the control box 4 controls the second servo motor 1503, the fill light 16 and the scanning device 17 to start. The second servo motor 1503 drives the rotating table 1502 to rotate, so that the beverage on the rotating table 1502 can rotate 360 degrees. The fill light 16 serves to fill light for the scanning device 17. The scanning device 17 can fully scan and identify the text information on the outer packaging of the beverage, determine the type, capacity and other information of the beverage, and transmit the identified information to the control box 4 in the form of an electrical signal. The control box 4 determines the heating or freezing time of the beverage through the information collected by the scanning device 17, and the heating time of the beverage is proportional to the capacity of the beverage.
[0044] In order to reduce the influence of the cylindrical evaporator 21 and the electromagnetic heater 22 on the performance of the second servo motor 1503, in the present embodiment, a workbench 19 is fixed to the bottom surface of the two temperature-control chambers 9, a clearance groove 20 is opened on the top of the workbench 19, and the bottom plate 1501 is slidably fitted in the clearance groove 20. The cylindrical evaporator 21 and the electromagnetic heater 22 are respectively fixed on the top of the two workbench 19. When the beverage enters the cylindrical evaporator 21 or the electromagnetic heater 22, the bottom plate 1501 is located inside the clearance groove 20, so that the second servo motor 1503 is protected by the workbench 19, thereby improving the service life of the second servo motor 1503.
[0045] The control box 4 integrates the control switches of various action components to realize the control of the component actions. The control principle of the automatic control switch is the existing technology and can be set up according to the existing technology.
[0046] The scanning device 17 uses a commodity scanning device in the prior art. The scanning device is widely used in the vending and commodity sorting industries. Its specific structure and working principle are prior art. Technicians can obtain the required model and function of the scanning device through commercial means. It should be noted that when the scanning device 17 cannot identify the volume and category of the beverage placed in, the user needs to select the appropriate heating or freezing time through the touch screen 5.
[0047] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.
[0048] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.
Claims
1. An automatic heating and ice condensing machine, characterized in that: It comprises a case (1) with a refrigeration component installed inside, a condensing box (2) and a heating box (3) are fixed to the left and right sides of the top of the case (1), and a control box (4) is fixed to the top of the condensing box (2) and the heating box (3); The condensing refrigerator (2) and the heating box (3) are both provided with a detection chamber (8) and a temperature-control chamber (9); A take-in / take-out opening (7) is provided on one side of the two detection chambers (8), and a closing door (10) that can be opened and closed automatically is provided at the take-in / take-out opening (7). A feeding assembly (15) that can be lifted and lowered vertically is provided in the two detection chambers (8), and a cylindrical evaporator (21) and an electromagnetic heater (22) are respectively fixed at positions corresponding to the feeding assembly (15) on the bottom surfaces of the two temperature-control chambers (9).
2. The automatic heating and ice condensing machine according to claim 1, characterized in that: The condensing box (2) and the heating box (3) are both fixed with partitions for separating the detection chamber (8) and the temperature-control chamber (9), and the bottom ends of the two feeding assemblies (15) slide through the two partitions and enter the cylindrical evaporator (21) and the electromagnetic heater (22) respectively. The cylindrical evaporator (21) is located in the condensing box (2), and the electromagnetic heater (22) is located in the heating box (3).
3. The automatic heating and ice condensing machine according to claim 2, characterized in that: An electric push rod (18) is fixedly installed on the bottom surface of the two temperature-controlled chambers (9); the feeding assembly (15) comprises a bottom plate (1501) and a top plate (1505); a group of vertical plates (1504) are fixed between the bottom plate (1501) and the top plate (1505); a hanging plate (1506) is fixed on the top surface of the top plate (1505); the output end of the electric push rod (18) slides through the partition and is fixedly connected to the lower surface of the hanging plate (1506); the bottom end of the bottom plate (1501) slides through the partition; and the electric push rod (18) is electrically connected to the control box (4).
4. The automatic heating and ice condensing machine according to claim 3, characterized in that: A scanning device (17) for scanning and identifying text information on the outer packaging of a beverage is fixedly installed on the inner wall of the detection chamber (8) at a position corresponding to the feeding assembly (15), and a fill light (16) is fixedly installed on the inner wall of the detection chamber (8). Both the fill light (16) and the scanning device (17) are electrically connected to the control box (4).
5. The automatic heating and ice condensing machine according to claim 4, characterized in that: The upper surface of the base plate (1501) is rotatably connected to a rotating table (1502), and a second servo motor (1503) is embedded and fixed inside the base plate (1501); the rotating shaft of the second servo motor (1503) is fixedly connected to the lower surface of the rotating table (1502), and the second servo motor (1503) is electrically connected to the control box (4).
6. The automatic heating and ice condensing machine according to claim 5, characterized in that: A workbench (19) is fixed to the bottom surface of the two temperature-control rooms (9), a clearance groove (20) is provided on the top of the workbench (19), the bottom plate (1501) is slidably fitted in the clearance groove (20), the cylindrical evaporator (21) and the electromagnetic heater (22) are respectively fixed on the top of the two workbench (19), a heat exchange tube is provided in the cylindrical evaporator (21), and the heat exchange tube is connected to the refrigeration component in the chassis (1).
7. The automatic heating and ice condensing machine according to claim 2, characterized in that: A group of threaded screws (11) are rotatably connected in the temperature-controlled chamber (9), the bottom end of the closing door (10) slides through the partition to enter the temperature-controlled chamber (9), and lifting blocks (12) are fixed to both sides of the bottom of the closing door (10), the threaded screws (11) penetrate the lifting blocks (12) and are threadedly connected to the lifting blocks (12), the rotating shafts of the two threaded screws (11) penetrate the temperature-controlled chamber (9) and are fixed with sprockets (13), the two sprockets (13) are connected by chain transmission, the sprockets (13) are located at the top of the chassis (1), and the inner wall of the chassis (1) is fixedly mounted with a first servo motor (14) through a bracket, the rotating shaft of the first servo motor (14) is fixedly connected to one of the sprockets (13), and the first servo motor (14) is electrically connected to the control box (4).
8. The automatic heating and ice condensing machine according to any one of claims 1 to 7, characterized in that: A touch screen (5) is provided on one side of the control box (4), and the touch screen (5) is electrically connected to the control box (4). Universal wheels (6) are fixedly mounted at the four corners of the bottom surface of the chassis (1).