Intelligent serving trolley capable of automatically avoiding obstacles

Abstract

The utility model discloses an intelligent serving trolley capable of automatically avoiding obstacles, which comprises an intelligent trolley body, a container arranged at the upper end of the intelligent trolley body, a heat preservation cavity arranged in the container, a refrigeration cavity arranged in the container, a ventilation pipe arranged at the upper end of the container, an exhaust fan arranged in the ventilation pipe, and an air guide pipe communicated with one end of the ventilation pipe. The free end of the air guide pipe communicates with an adjusting shell, a first air inlet pipe communicates between the adjusting shell and the heat preservation cavity, a heating resistance wire is arranged in the first air inlet pipe, a miniature refrigeration compressor is arranged on the outer side of the container, a limiting plate is slidably connected into the adjusting shell, and a sliding groove is formed in the adjusting shell. A permanent magnet is arranged at one end of the limiting plate, an electromagnetic block is arranged in the sliding groove, and a thermistor is arranged on the outer side of the sliding groove. According to the utility model, food can be heated for heat preservation or refrigerated for cooling, the heat preservation and refrigeration effects can be automatically adjusted according to the external temperature, and the influence of the temperature on the taste of the food is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent meal delivery technical field, especially in an automatic obstacle avoidance intelligent meal delivery vehicle. BACKGROUND

[0002] In today's rapidly changing technology, with the rapid development of artificial intelligence, the Internet of Things and automatic driving technology, all walks of life are experiencing unprecedented changes. In order to improve the quality of campus life, meet the needs of teachers and students for convenient and efficient catering services, and respond to the concept of energy saving and emission reduction and green campus, intelligent meal delivery vehicles have emerged as the times require. Intelligent meal delivery vehicles are equipped with high-precision maps and real-time positioning systems, combined with multiple sensors such as laser radars, ultrasonic sensors and cameras, which can accurately perceive the surrounding environment, including pedestrians, bicycles, other vehicles and static obstacles, and realize intelligent decision-making and path planning through built-in advanced algorithms, effectively avoiding collisions and ensuring safe and efficient shuttle in the campus. The existing intelligent meal delivery vehicles usually load food by carrying a cargo box, and then deliver food at different locations, but some food needs to be kept warm during delivery, and some food needs to be refrigerated during delivery. The existing intelligent meal delivery vehicles do not have the function of keeping warm or refrigerating, and the food taste is easily affected by the outside temperature during meal delivery. SUMMARY

[0003] The utility model aims at providing an intelligent meal delivery vehicle that can automatically avoid obstacles, heat and keep food warm, or refrigerate and cool food, and automatically adjust the heating and cooling effect according to the outside temperature, reducing the impact of temperature on food taste.

[0004] The above technical purpose of the utility model is realized by the following technical scheme: an intelligent meal delivery vehicle that can automatically avoid obstacles, comprising an intelligent vehicle body, a cargo box provided at the upper end of the intelligent vehicle body, a cargo door rotatably connected to the front and rear sides of the left and right ends of the cargo box, a heat preservation cavity provided at one end inside the cargo box, a refrigeration cavity provided at the other end inside the cargo box, a ventilation pipe provided at the upper end of the cargo box, an air extractor provided inside the ventilation pipe, and a gas guide pipe communicated with one end of the ventilation pipe;

[0005] The free end of the gas guide pipe is communicated with an adjusting shell, a first air inlet pipe is communicated between the adjusting shell and the heat preservation cavity, a heating resistance wire is provided inside the first air inlet pipe, a miniature refrigeration compressor is provided on the outside of the cargo box near the refrigeration cavity, a second air inlet pipe is communicated between the miniature refrigeration compressor and the adjusting shell in a relative arrangement with the first air inlet pipe, and a third air inlet pipe is communicated between the miniature refrigeration compressor and the refrigeration cavity.

[0006] Inside the regulating housing, a limit rod is provided between the end near the first air intake pipe and the end near the second air intake pipe. Inside the regulating housing, a limit plate is slidably connected to the limit rod. Outside the limit rod, a spring is provided between the limit plate and the regulating housing. Inside the regulating housing, at the end away from the air guide pipe, a sliding groove is provided. At the end of the limit plate near the sliding groove, a permanent magnet block is slidably connected to it. Inside the sliding groove, at the end away from the spring, an electromagnetic block that cooperates with the permanent magnet block is provided. At the outer end of the sliding groove, a thermistor that cooperates with the electromagnet is provided.

[0007] By adopting the above technical solution, during use, the cargo door is first opened, and then, depending on the type of food, it is placed in the insulation chamber for warmth or in the cooling chamber for cooling. The cargo door is then closed, and the food is delivered via the intelligent vehicle body. The exhaust fan is started, drawing in outside air, which enters the ventilation duct and then flows through the air guide pipe into the regulating shell. When the electromagnet is energized, it generates a repulsive force against the permanent magnet, pushing the permanent magnet to move relative to the slide groove. The permanent magnet drives the limiting plate to move relative to the limiting rod, compressing the spring. The air entering the shell through the air guide pipe is split as it passes the limiting plate, entering the first air intake pipe and the second air intake pipe respectively. After passing through the heating resistance wire, the air enters the insulation chamber, thus heating and keeping the food in the insulation chamber warm. After entering the second air inlet pipe, it is cooled by the micro refrigeration compressor, and then enters the refrigeration chamber through the third air inlet pipe, thus cooling the food in the refrigeration chamber. When the external temperature changes, the resistance of the thermistor changes, and the repulsive force between the electromagnet and the permanent magnet changes. The limiting plate moves under the action of the spring force and the repulsive force between the electromagnet and the permanent magnet, changing the amount of air entering the first and second air inlets after being diverted by the limiting plate. This can prevent the refrigeration effect in the refrigeration chamber from being affected when the external temperature is too high, and prevent the heating and insulation effect in the insulation chamber from being affected when the external temperature is too low.

[0008] A further feature of this invention is that each cargo door has a cylinder rotatably connected to both its upper and lower ends, which is rotatably connected to the cargo box.

[0009] A further feature of this invention is that a power supply wire for providing power is connected between the intelligent vehicle body and the cargo box.

[0010] A further feature of this invention is that a filter plate is provided at the end of the ventilation pipe away from the air guide pipe.

[0011] A further feature of this invention is that a switch controller is provided on the outside of the cargo box.

[0012] The electromagnet is powered and the permanent magnet block is arranged in a repelling state.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The food can be heated and kept warm or refrigerated, and the efficiency of keeping warm or refrigerating can be adjusted according to the change of the external temperature, so that the taste of the food is prevented from changing, air outside is extracted by the fan, repulsion is generated between the electromagnet and the permanent magnet block, the limiting plate is driven to move, air can be divided by the limiting plate, air can be heated by the heating resistance wire, the inside of the keeping warm cavity is heated and kept warm, air can be cooled by the miniature refrigeration compressor, the inside of the refrigeration cavity is cooled and refrigerated, the repulsion between the electromagnet and the permanent magnet block can be changed by the thermistor, so that the up-and-down moving distance of the limiting plate is changed, the amount of air that passes through the limiting plate is changed, so that when the external temperature is high, the amount of air entering the refrigeration cavity is increased, and when the external temperature is low, the amount of air entering the keeping warm cavity is increased. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the partial sectional view of the utility model;

[0017] Figure 3 It is the power supply direction of the utility model;

[0018] Figure 4 It is the partial sectional view of the adjusting shell of the utility model.

[0019] In the drawing: 1, intelligent vehicle body; 2, cargo box; 3, cargo door; 4, air cylinder; 5, keeping warm cavity; 6, refrigeration cavity; 7, ventilation pipe; 8, filter plate; 9, air extractor; 10, air guide pipe; 11, adjusting shell; 12, first air inlet pipe; 13, heating resistance wire; 14, second air inlet pipe; 15, miniature refrigeration compressor; 16, third air inlet pipe; 17, limiting rod; 18, limiting plate; 19, spring; 20, sliding slot; 21, permanent magnet block; 22, electromagnet; 23, thermistor; 24, switch controller; 25, power supply wire. DETAILED DESCRIPTION

[0020] The utility model is further described in detail in connection with the drawings.

[0021] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0022] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0023] In the description of the utility model, it is necessary to understand that the terms "set", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Embodiment, refer to Figures 1-4 A kind of intelligent meal delivery car of automatic obstacle avoidance, including intelligent car body 1, the rear side of the upper end of intelligent car body 1 is provided with a container 2, the front and rear sides of the left and right ends of container 2 are all rotatably connected with a piece of goods door 3, the upper and lower ends of each goods door 3 are rotatably connected with a cylinder 4 rotatably connected with container 2, a power supply wire 25 for providing power is communicated between intelligent car body 1 and container 2, the upper end in the inside of container 2 is provided with a heat preservation cavity 5, the lower end in the inside of container 2 is provided with a refrigeration cavity 6.

[0025] The front side of the upper end of container 2 is provided with a ventilation pipe 7, the inside of ventilation pipe 7 is provided with a suction fan 9, the middle of the rear end of container 2 is provided with an adjusting shell 11, the right end of adjusting shell 11 is communicated with a gas guide pipe 10 communicated with ventilation pipe 7, the upper end of adjusting shell is communicated with a first air inlet pipe 12 communicated with heat preservation cavity 5, the inside of first air inlet pipe 12 is provided with a heating resistance wire 13, which can heat control to heat and keep warm the inside of heat preservation cavity 5, the lower side of the rear end of container 2 is provided with a miniature refrigeration compressor 15, the lower end of adjusting shell 11 and miniature refrigeration compressor 15 are communicated with a second air inlet pipe 14, miniature refrigeration compressor 15 and refrigeration cavity 6 are communicated with a third air inlet pipe 16, which can cool the air to cool and refrigerate the inside of refrigeration cavity 6, the rear end of container 2 is provided with a switch controller 24.

[0026] A limiting rod 17 is vertically arranged between the left sides of the upper and lower ends of the inside of the adjusting shell 11, a limiting plate 18 which is horizontally arranged and is in sliding connection with the limiting rod 17 is slidingly connected to the inside of the adjusting shell 11, a spring 19 is arranged between the outside of the limiting rod 17 and the lower end of the limiting plate 18, a sliding slot 20 is arranged at the left end of the inside of the adjusting shell 11, a permanent magnet block 21 which is in sliding connection with the sliding slot 20 is arranged at the left end of the limiting plate 18, a electromagnet block which is matched with the permanent magnet block 21 is arranged at the upper end of the inside of the sliding slot 20, and the electromagnet 22 generates a repulsive force matched with the permanent magnet block 21 when it is electrified, a thermistor 23 which is matched with the electromagnet block is arranged at the upper end of the outside of the sliding slot 20, the repulsive force between the electromagnet 22 and the magnet block is controlled by the influence of the outside temperature on the resistance value of the thermistor 23, the air amount entering the heat preservation cavity 5 and the refrigeration cavity 6 can be adjusted, so as to prevent the outside temperature change from affecting the food in the inside of the container 2.

[0027] Usage: in use, the power supply in the intelligent vehicle body 1 can be connected to the goods door 3 through the power supply wire 25, the different goods doors 3 can be opened by controlling the air cylinder 4, then according to the type of the food, the food can be selected to be placed in the heat preservation cavity 5 for heat preservation or in the refrigeration cavity 6 for refrigeration, the goods door 3 is closed, then the food is delivered by the intelligent vehicle body 1, the air pump 9 is started by the switch controller 24, the air pump 9 extracts the outside air, the impurities in the air are filtered by the filter plate 8, then the air enters the ventilation pipe 7, then enters the adjusting shell 11 through the air guide pipe 10, the electromagnet 22 is electrified, the electromagnet 22 generates a repulsive force matched with the permanent magnet block 21, the permanent magnet block 21 is pushed to move relative to the sliding slot 20, the permanent magnet block 21 drives the limiting plate 18 to move relative to the limiting rod 17, the spring 19 is compressed, the air entering the shell through the air guide pipe 10 is divided into two parts when passing through the limiting plate 18, and enters the first air inlet pipe 12 and the second air inlet pipe 14 respectively, after entering the first air inlet pipe 12, the air is heated by the heating resistance wire 13 and then enters the heat preservation cavity 5, so as to heat and preserve the food in the heat preservation cavity 5, after entering the second air inlet pipe 14, the air is refrigerated by the micro refrigeration compressor 15 and then enters the refrigeration cavity 6 through the third air inlet pipe 16, so as to refrigerate the food in the refrigeration cavity 6.

[0028] When the outside temperature changes, the resistance value of the thermistor 23 changes, the repulsive force between the electromagnet 22 and the permanent magnet changes, then the limiting plate 18 moves under the elastic force of the spring 19 and the repulsive force between the electromagnet 22 and the permanent magnet, the air amount entering the first air inlet pipe 12 and the second air inlet pipe 14 after being divided by the limiting plate 18 changes, so as to prevent the outside temperature from being too high to affect the refrigeration effect in the refrigeration cavity 6 and the outside temperature from being too low to affect the heating and preserving effect in the heat preservation cavity 5.

[0029] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and a modification without creative contribution can be made to the embodiment according to needs by a person skilled in the art after reading the specification, but as long as the modification is within the scope of the claims of the utility model, the utility model is protected by the patent law.

Claims

1. An intelligent meal delivery vehicle capable of automatic obstacle avoidance, comprising an intelligent vehicle body (1), characterized in that: The upper end of the intelligent vehicle body (1) is provided with a cargo box (2), the front and back sides of the left and right ends of the cargo box (2) are rotatably connected with cargo doors (3), one end of the inside of the cargo box (2) is provided with a heat preservation cavity (5), the other end of the inside of the cargo box (2) is provided with a refrigeration cavity (6), the upper end of the cargo box (2) is provided with a ventilation pipe (7), the inside of the ventilation pipe (7) is provided with an air extractor (9), one end of the ventilation pipe (7) is communicated with a gas guide pipe (10). The free end of the gas guide pipe (10) is communicated with an adjusting shell (11), the adjusting shell (11) and the heat preservation cavity (5) are communicated with a first air inlet pipe (12), the inside of the first air inlet pipe (12) is provided with a heating resistance wire (13), the outside of the cargo box (2) is provided with a micro refrigeration compressor (15) close to the refrigeration cavity (6), the micro refrigeration compressor (15) and the adjusting shell (11) are communicated with a second air inlet pipe (14) which is oppositely arranged with the first air inlet pipe (12), the micro refrigeration compressor (15) and the refrigeration cavity (6) are communicated with a third air inlet pipe (16). The inside of the adjusting shell (11) is provided with a limiting rod (17) between one end close to the first air inlet pipe (12) and one end close to the second air inlet pipe (14), the inside of the adjusting shell (11) is slidably connected with a limiting plate (18) which is slidably connected with the limiting rod (17), the outside of the limiting rod (17) is provided with a spring (19) between the limiting plate (18) and the adjusting shell (11), one end of the inside of the adjusting shell (11) far away from the gas guide pipe (10) is provided with a sliding groove (20), one end of the limiting plate (18) close to the sliding groove (20) is provided with a permanent magnet block (21) which is slidably connected with the sliding groove (20), the inside of the sliding groove (20) far away from the spring (19) is provided with an electromagnet (22) which is matched with the permanent magnet block (21), one end of the outside of the sliding groove (20) is provided with a thermistor (23) which is matched with the electromagnet (22).

2. The intelligent food delivery cart capable of automatic obstacle avoidance according to claim 1, characterized in that: The upper and lower ends of each cargo door (3) are rotatably connected with a cylinder (4) which is rotatably connected with the cargo box (2).

3. The intelligent food delivery cart capable of automatic obstacle avoidance according to claim 1, wherein: The intelligent vehicle body (1) and the cargo box (2) are connected with a power supply lead (25) for providing power supply.

4. The intelligent food delivery cart capable of automatic obstacle avoidance according to claim 1, wherein: One end of the ventilation pipe (7) far away from the gas guide pipe (10) is provided with a filter plate (8).

5. The intelligent food delivery cart capable of automatic obstacle avoidance according to claim 1, wherein: The outside of the cargo box (2) is provided with a switch controller (24). 6.The intelligent food delivery cart capable of automatically avoiding obstacles according to claim 1, wherein: The electromagnet (22) is in a repelling state with the permanent magnet block (21) when electrified.

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