Meal delivery robot with built-in heat preservation box body

Abstract

The invention relates to the technical field of meal delivery robots, in particular to a meal delivery robot with a built-in heat preservation box, and solves the problems that an existing meal delivery robot lacks a heat preservation structure and is low in meal delivery efficiency. The meal delivery robot comprises a robot base, a shell is arranged at the upper end of the robot base, a meal delivery opening is formed in the shell, and a door plate is hinged to the meal delivery opening; a first box body and a second box body are slidably connected in the shell, driving mechanisms are arranged between the first box body and the shell and between the second box body and the shell, a first cover plate and a second cover plate are slidably connected in the shell, and heat preservation layers are arranged in the first box body and the second box body; the driving mechanism comprises a first fixing rod and a second fixing rod, a first swing rod is hinged to the first fixing rod, a second swing rod is hinged to the second fixing rod, and a connecting plate is hinged to the free end of the first swing rod and the free end of the second swing rod. According to the meal delivery robot, a better heat preservation effect can be achieved on meals, the meal delivery efficiency of the meal delivery robot is improved, and the situation that the quality of the meals is affected due to odor tainting is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of food delivery robots, and in particular to a food delivery robot with a built-in heat preservation box. Background Art

[0002] Food delivery robots are a new type of service robot that has emerged in recent years with the rapid development of artificial intelligence and robotics. They are widely used in restaurants, hotels, hospitals and other places to improve food delivery efficiency, reduce labor costs, and enhance customers' dining experience. The food delivery robot includes a main body, a manipulator and a box set on the main body. A food storage area is set inside the box, and multiple meals are stacked in the food storage area in sequence. The manipulator is used to take out the food inside the box and place it on the table. The movement of the food delivery robot is controlled by a communication component, so that the food delivery robot can automatically move in various dining areas to deliver meals.

[0003] However, the existing food delivery robots lack a heat preservation structure. When the delivery distance is long, the food is easy to get cold, thus affecting the customer's dining experience. In addition, there is only a single-layer food storage area in the box. When there are many meals, multiple deliveries are required, which seriously reduces the efficiency of food delivery. If a large amount of food is stacked in the single-layer food storage area, the tableware at the bottom of the food storage area is more likely to be tilted, causing the soup in the food to overflow, which will cause the taste of multiple meals to mix with each other, affecting the taste of the food and even affecting the reputation of the store.

[0004] Therefore, the present invention provides a food delivery robot with a built-in thermal insulation box to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a food delivery robot with a built-in thermal insulation box to solve the problems of the above-mentioned existing food delivery robots lacking a thermal insulation structure and having low food delivery efficiency.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A food delivery robot with a built-in heat preservation box, comprising a robot base, a shell is provided at the upper end of the robot base, and a food delivery opening that passes through inside and outside is opened at the upper and lower parts of the front side wall of the shell, and two door panels opposite to each other are hinged at the food delivery opening, and the two door panels can completely cover the food delivery opening, and the multiple door panels can swing back and forth synchronously, and the upper and lower parts in the shell are respectively longitudinally slidably connected with a first box body and a second box body with openings facing upward, and a driving mechanism is provided between the left and right side walls of the first box body and the second box body and the shell, and the driving mechanism can drive the first box body and the second box body to move forward and backward, and the upper and lower parts in the shell are respectively vertically slidably connected with a first cover plate and a second cover plate, and the first cover plate can cover the opening at the upper end of the first box body, and the second cover plate can cover the opening at the upper end of the second box body, and a heat preservation layer is provided on the inner surfaces of the first box body and the second box body and on the lower end surfaces of the first cover plate and the second cover plate; The driving mechanism includes a first fixed rod and a second fixed rod, the first fixed rod is fixedly connected to the shell, the first box body and the second box body are fixedly connected to the second fixed rod on the corresponding side, the front and rear ends of the first fixed rod are hinged with a first swing rod in the up and down direction, the first swing rod can swing alternately with the door panel, the first fixed rod and the two first swing rods together form a parallelogram, the front and rear ends of the second fixed rod are hinged with a second swing rod in the up and down direction, the second fixed rod and the two second swing rods together form a parallelogram, the two first swing rods and the two second swing rods free ends are hinged with a connecting plate, and the second swing rod and the first swing rod have opposite swinging directions.

[0007] Preferably, the rear end of the door panel is provided with a waist-shaped ring in the left and right directions, and a U-shaped plate located between the first box body and the second box body and opening forward is provided in the outer shell, and U-shaped frames are provided at both free ends of the U-shaped plate, and upper and lower free ends of the U-shaped frames are provided with upper and lower axial plug posts, and the free ends of the plug posts are located in the waist-shaped ring on the corresponding side. When the U-shaped plate moves forward, the U-shaped plate drives the two U-shaped frames to move forward, and the U-shaped frame drives the two plug posts to move forward, and the plug posts drive the door panel on the corresponding side to swing forward through the waist-shaped ring, thereby realizing the synchronous forward swinging of multiple door panels.

[0008] Preferably, the rear end of the U-shaped plate is threadedly connected to a front-to-back axial lead screw, and an electric motor is provided in the housing and is located behind the U-shaped plate and in the front-to-back axial direction. The output end of the motor is coaxially fixedly connected to the lead screw. When the motor rotates, the output end of the motor drives the lead screw to rotate, and the lead screw drives the U-shaped plate to move forward and backward.

[0009] Preferably, two guide rails in the front-to-back direction and opposite to each other up and down are provided at the left and right ends of the shell, and guide blocks are provided at the left and right ends of the first box body and the second box body, and the guide blocks are longitudinally slidably connected to the guide rails on the corresponding sides. When the first box body and the second box body move forward and backward, the first box body and the second box body drive the guide blocks to slide forward and backward on the guide rails, thereby realizing the longitudinal sliding connection between the first box body and the second box body and the shell.

[0010] Preferably, both the upper and lower parts of the shell are provided with fixed plates, and T-shaped rods are vertically slidably connected at the four corners of the fixed plates. The upper ends of the first cover plate and the second cover plate are fixedly connected to multiple T-shaped rods on the corresponding sides. The first cover plate and the second cover plate can drive the T-shaped rods on the corresponding sides to move up and down, thereby realizing the vertical sliding connection between the first cover plate and the second swing rod and the shell.

[0011] Preferably, the first cover plate and the second swing arm are both inclined with the front higher and the back lower, and the upper end surfaces of the first box body and the second box body are both inclined with the front higher and the back lower, so that the first cover plate and the first box body, as well as the second cover plate and the second box body, can fit better, and a pressure spring is sleeved on the vertical part of the T-bar, the upper pressure spring is located between the first cover plate and the upper fixed plate, and the lower pressure spring is located between the second cover plate and the lower fixed plate. When the first box body and the second box body are moved into the outer shell, the upper pressure spring can apply downward pressure to the first cover plate, so that the first cover plate and the first box body fit more closely, and the lower pressure spring can apply downward pressure to the second cover plate, so that the second cover plate and the second box body fit more closely, so that the first box body and the second box body achieve better thermal insulation effect.

[0012] Preferably, a first gear in the front-to-rear axial direction is provided at the hinge between the first rocker arm on the right and the first fixed rod, and push plates in the upper and lower directions are longitudinally slidably connected in the left and right parts of the shell. Racks in the front-to-rear direction are provided at the upper and lower ends of the push plates, and the racks are meshed with the first gear on the corresponding side. When the push plate moves forward, the push plate drives the upper and lower racks to move forward, and the rack drives the first gear on the corresponding side to rotate. The first gear drives the first rocker arm to swing forward, and when the push plate moves backward, it can drive the first rocker arm to swing backward.

[0013] Preferably, two cylindrical rods are provided in the left and right parts of the shell in a front-to-back axial direction and opposite to each other up and down. The two cylindrical rods opposite to each other up and down are slidably connected to the push plates on the corresponding sides, thereby realizing a longitudinal sliding connection between the push plates and the shell without contact.

[0014] Preferably, baffles are provided at both ends of the left and right ends of the U-shaped plate, and the push plate is located between the baffle and the rear end of the U-shaped plate, and a gap is provided between the push plate and the rear end of the U-shaped plate. When the U-shaped plate moves forward, due to the gap between the rear end of the U-shaped plate and the push plate, the U-shaped plate does not push the push plate to move forward, and at this time the first swing arm does not swing, and the U-shaped plate drives the two U-shaped frames to move forward, and the U-shaped frame drives the waist-shaped ring and the door panel to swing forward. When the food delivery port is fully opened, the direction of the waist-shaped ring swings to the same direction as the U-shaped frame. At this time, the plug column on the U-shaped frame slides along the waist-shaped ring, and the door panel does not swing, and the rear end of the U-shaped plate contacts the push plate, and the U-shaped plate drives the push plate to move forward, and the push plate drives the first swing arm to swing forward, thereby realizing the alternating swing of the first swing arm and the door panel.

[0015] Preferably, a second gear is provided at the hinge between the first swing arm on the right and the connecting plate, and a third gear meshing with the second gear is provided at the hinge between the second swing arm on the left and the connecting plate. When the first swing arm swings, the first swing arm drives the second gear to rotate, and the second gear drives the third gear to rotate in the opposite direction, and the third gear drives the second swing arm to swing in the opposite direction, thereby achieving opposite swing directions of the second swing arm and the second swing arm.

[0016] The beneficial effects of the present invention are: 1. The first cover plate and the second cover plate provided in the present invention can respectively cover the openings at the upper ends of the first box body and the second box body, and the first cover plate, the second cover plate, and the upper ends of the first box body and the second box body are all arranged in an inclined shape with the front higher and the rear lower, so that a closed space can be formed inside the first box body and the second box body, thereby reducing the loss rate of the heat of the internal meals. A plurality of pressure springs are arranged above the first cover plate and the second cover plate, which can apply downward pressure to the first cover plate and the second cover plate, so that the first cover plate and the second cover plate respectively close the first box body and the second box body, thereby being beneficial to enhancing the sealing effect of the first box body and the second box body, and significantly reducing the loss of the heat of the meals. The first cover plate, the second cover plate, the first box body and the second box body are all provided with a heat preservation layer, and the better sealing effect achieved by the superposition of the heat preservation layer can better keep the meals warm, thereby effectively preventing the meals from cooling down when being transported over a long distance and affecting the dining experience of the customers.

[0017] 2. The first box body and the second box body provided in the present invention can form two food storage spaces. Compared with the existing food delivery robots, they can hold more food and deliver more food each time, which speeds up the food delivery efficiency of the food delivery robots. Moreover, the two food delivery spaces can place some food with stronger odors separately to avoid the occurrence of cross-flavors that affect the quality of the food. Compared with the existing food delivery robots, the use effect is better.

[0018] 3. The second gear and the third gear provided in the present invention can drive the second swing arm to swing in the opposite direction when the first swing arm swings, thereby doubly transmitting the moving distance of the free end of the first swing arm to the first box and the second box, thereby accelerating the forward and backward movement speed of the first box and the second box, and improving the efficiency of serving meals. The guide block and the guide rail can support the rear of the first box and the second box upward, so that the first box and the second box can move more smoothly and prevent the soup in the meal from spilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a main axonometric schematic diagram of the present invention.

[0020] Figure 2 It is a left-side cutaway axonometric schematic diagram of the present invention.

[0021] Figure 3 It is a rear cutaway axonometric schematic diagram of the present invention.

[0022] Figure 4 It is a left axonometric schematic diagram of the first box body in the present invention.

[0023] Figure 5 It is a left-side cutaway axonometric schematic diagram of the first box body in the present invention.

[0024] Figure 6 It is a left-side cutaway axonometric schematic diagram of the housing in the present invention.

[0025] Figure 7 It is a left axonometric schematic diagram of the first swing arm and the second swing arm on the left side of the present invention.

[0026] Figure 8 It is a left axonometric schematic diagram of the first swing arm and the second swing arm on the right side of the present invention.

[0027] Fig. 9 It is a top view cutaway axonometric schematic diagram of the present invention.

[0028] Fig.10 For the present invention Fig. 9 Enlarged schematic diagram of part A.

[0029] In the figure: 1. robot base; 2. shell; 3. food delivery port; 4. door panel; 5. first box body; 6. second box body; 7. first cover plate; 8. second cover plate; 9. insulation layer; 10. first fixed rod; 11. second fixed rod; 12. first swing rod; 13. second swing rod; 14. connecting plate; 15. waist ring; 16. U-shaped plate; 17. U-shaped frame; 18. plug column; 19. lead screw; 20. motor; 21. guide rail; 22. guide block; 23. fixed plate; 24. T-bar; 25. pressure spring; 26. first gear; 27. push plate; 28. rack; 29. ​​cylindrical rod; 30. baffle; 31. second gear; 32. third gear. DETAILED DESCRIPTION

[0030] The following will refer to the attached Figures 1 to 10 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0031] A food delivery robot with a built-in thermal insulation box, as shown in the attached Figures 1 to 10As shown, it includes a robot base 1, a shell 2 is provided at the upper end of the robot base 1, and a meal delivery port 3 that passes through inside and outside is opened at the upper and lower parts of the front side wall of the shell 2. Two door panels 4 opposite to each other are hinged at the meal delivery port 3, and the two door panels 4 can completely cover the meal delivery port 3, and multiple door panels 4 can swing back and forth synchronously. The upper and lower parts in the shell 2 are respectively longitudinally slidably connected with a first box body 5 and a second box body 6 with openings facing upward, and a driving mechanism is provided between the left and right side walls of the first box body 5 and the second box body 6 and the shell 2, and the driving mechanism can drive the first box body 5 and the second box body 6 to move forward and backward. The upper and lower parts in the shell 2 are respectively vertically slidably connected with a first cover plate 7 and a second cover plate 8, and the first cover plate 7 can cover the opening at the upper end of the first box body 5, and the second cover plate 8 can cover the opening at the upper end of the second box body 6. Insulation layers 9 are provided on the inner surfaces of the first box body 5 and the second box body 6 and on the lower end surfaces of the first cover plate 7 and the second cover plate 8; The driving mechanism includes a first fixed rod 10 and a second fixed rod 11, the first fixed rod 10 is fixedly connected to the outer shell 2, the first box body 5 and the second box body 6 are fixedly connected to the second fixed rod 11 on the corresponding side, the front and rear ends of the first fixed rod 10 are hinged with a first swing rod 12 in the up and down direction, the first swing rod 12 can swing alternately with the door panel 4, the first fixed rod 10 and the two first swing rods 12 form a parallelogram, the front and rear ends of the second fixed rod 11 are hinged with a second swing rod 13 in the up and down direction, the second fixed rod 11 and the two second swing rods 13 form a parallelogram, the free ends of the two first swing rods 12 and the two second swing rods 13 are hinged with a connecting plate 14, and the swinging direction of the second swing rod 13 is opposite to that of the first swing rod 12.

[0032] As attached Fig. 9 and Fig.10 As shown, the rear end of the door panel 4 is provided with a waist-shaped ring 15 in the left and right directions, and the outer shell 2 is provided with a U-shaped plate 16 located between the first box body 5 and the second box body 6 and opening forward, and the two free ends of the U-shaped plate 16 are provided with U-shaped frames 17, and the upper and lower free ends of the U-shaped frame 17 are provided with upper and lower axial plug columns 18, and the free ends of the plug columns 18 are located in the waist-shaped ring 15 on the corresponding side. When the U-shaped plate 16 moves forward, the U-shaped plate 16 drives the two U-shaped frames 17 to move forward, and the U-shaped frame 17 drives the two plug columns 18 to move forward, and the plug columns 18 drive the door panel 4 on the corresponding side to swing forward through the waist-shaped ring 15, thereby realizing the synchronous forward swinging of multiple door panels 4.

[0033] As attached Figure 2 , Figure 3 and Fig. 9As shown, the rear end of the U-shaped plate 16 is threadedly connected with a front-to-rear axial lead screw 19, and the housing 2 is provided with a motor 20 located behind the U-shaped plate 16 and in the front-to-rear axial direction. The output end of the motor 20 is coaxially fixedly connected to the lead screw 19. When the motor 20 rotates, the output end of the motor 20 drives the lead screw 19 to rotate, and the lead screw 19 drives the U-shaped plate 16 to move forward and backward.

[0034] As attached Figure 3 and Figure 6 As shown, two guide rails 21 in the front-to-back direction and opposite to each other up and down are provided at the left and right ends of the shell 2, and guide blocks 22 are provided at the left and right ends of the first box body 5 and the second box body 6. The guide blocks 22 are longitudinally slidably connected to the guide rails 21 on the corresponding sides. When the first box body 5 and the second box body 6 move forward and backward, the first box body 5 and the second box body 6 drive the guide blocks 22 to slide forward and backward on the guide rails 21, thereby realizing the longitudinal sliding connection between the first box body 5 and the second box body 6 and the shell 2.

[0035] As attached Figures 2 to 5 As shown, the upper and lower parts of the shell 2 are both provided with fixed plates 23, and the four corners of the fixed plates 23 are vertically slidably connected with T-shaped rods 24. The upper ends of the first cover plate 7 and the second cover plate 8 are fixedly connected to multiple T-shaped rods 24 on the corresponding sides. The first cover plate 7 and the second cover plate 8 can drive the T-shaped rods 24 on the corresponding sides to move up and down, thereby realizing that the first cover plate 7 and the second swing rod 13 are vertically slidably connected to the shell 2.

[0036] As attached Figure 2 , Figure 4 and Figure 5 As shown, the first cover plate 7 and the second swing arm 13 are both inclined with the front higher and the back lower, and the upper end surfaces of the first box body 5 and the second box body 6 are both inclined with the front higher and the back lower, so that the first cover plate 7 and the first box body 5, as well as the second cover plate 8 and the second box body 6 can fit better, and a pressure spring 25 is sleeved on the vertical part of the T-bar 24, and the upper pressure spring 25 is located between the first cover plate 7 and the upper fixing plate 23, and the lower pressure spring 25 is located between the second cover plate 8 and the lower fixing plate 23. When the first box body 5 and the second box body 6 are moved into the outer shell 2, the upper pressure spring 25 can apply downward pressure to the first cover plate 7, so that the first cover plate 7 and the first box body 5 fit more closely, and the lower pressure spring 25 can apply downward pressure to the second cover plate 8, so that the second cover plate 8 and the second box body 6 fit more closely, so that the first box body 5 and the second box body 6 achieve a better thermal insulation effect.

[0037] As attached Figure 4 , Figure 6 and Fig. 9As shown, a first gear 26 in the front-to-rear axial direction is provided at the hinge between the first swing rod 12 on the right side and the first fixed rod 10, and push plates 27 in the upper and lower directions are longitudinally slidably connected on both the left and right parts of the housing 2. Racks 28 in the front-to-rear direction are provided on both the upper and lower ends of the push plate 27, and the racks 28 are meshed with the first gear 26 on the corresponding side. When the push plate 27 moves forward, the push plate 27 drives the upper and lower racks 28 to move forward, and the rack 28 drives the first gear 26 on the corresponding side to rotate. The first gear 26 drives the first swing rod 12 to swing forward, and when the push plate 27 moves backward, it can drive the first swing rod 12 to swing backward.

[0038] As attached Figure 6 and Fig. 9 As shown, two cylindrical rods 29 are provided in the left and right parts of the shell 2 in the front-rear axial direction and opposite to each other up and down. The two cylindrical rods 29 opposite to each other up and down are slidably connected to the push plates 27 on the corresponding sides, thereby realizing the longitudinal sliding connection between the push plates 27 and the shell 2 without contact.

[0039] As attached Fig. 9 and Fig.10 As shown, baffles 30 are provided at both ends of the U-shaped plate 16, and a push plate 27 is located between the baffle 30 and the rear end of the U-shaped plate 16, and a gap is provided between the push plate 27 and the rear end of the U-shaped plate 16. When the U-shaped plate 16 moves forward, due to the gap between the rear end of the U-shaped plate 16 and the push plate 27, the U-shaped plate 16 does not push the push plate 27 to move forward, and at this time the first swing rod 12 does not swing, and the U-shaped plate 16 drives the two U-shaped frames 17 to move forward, and the U-shaped frame 17 drives the waist-shaped ring 15 and the door panel 4 to swing forward. When the meal delivery port 3 is fully opened, the direction of the waist-shaped ring 15 swings to the same direction as the U-shaped frame 17. At this time, the plug column 18 on the U-shaped frame 17 slides along the waist-shaped ring 15, and the door panel 4 does not swing, and the rear end of the U-shaped plate 16 contacts with the push plate 27, and the U-shaped plate 16 drives the push plate 27 to move forward, and the push plate 27 drives the first swing rod 12 to swing forward, thereby realizing the alternating swing of the first swing rod 12 and the door panel 4.

[0040] As attached Figure 4 , Figures 6 to 8 As shown, a second gear 31 is provided at the hinge between the first swing arm 12 on the right and the connecting plate 14, and a third gear 32 meshing with the second gear 31 is provided at the hinge between the second swing arm 13 on the left and the connecting plate 14. When the first swing arm 12 swings, the first swing arm 12 drives the second gear 31 to rotate, and the second gear 31 drives the third gear 32 to rotate in the opposite direction, and the third gear 32 drives the second swing arm 13 to swing in the opposite direction, thereby realizing that the second swing arm 13 and the second swing arm 13 have opposite swing directions.

[0041] When the present invention is in use, in the initial state, the push plate 27 and the baffle 30 are in contact with each other, and there is a gap between the push plate 27 and the rear end of the U-shaped plate 16, the first box body 5 and the second box body 6 are both located inside the shell 2, and the two door panels 4 opposite to each other on the left and right close the food delivery port 3; After the staff has prepared the meal, they can press a button to start the motor 20 to rotate clockwise. The output end of the motor 20 drives the lead screw 19 to rotate clockwise. The lead screw 19 drives the U-shaped plate 16 to move forward. Since there is a gap between the push plate 27 and the rear end of the U-shaped plate 16, the push plate 27 does not move at this time. The U-shaped plate 16 drives the two U-shaped frames 17 to move forward synchronously. The U-shaped frame 17 drives the upper and lower plug posts 18 to move forward. The plug posts 18 push the waist ring 15 and the door panel 4 to swing forward, and the multiple door panels 4 swing forward together, and the two meal delivery ports 3 are gradually opened; When the two meal delivery ports 3 are fully opened, the waist-shaped ring 15 swings in the same direction as the U-shaped frame 17, and the U-shaped frame 17 continues to move forward with the U-shaped plate 16. The U-shaped frame 17 drives the plug post 18 to slide forward along the waist-shaped ring 15. At this time, the door panel 4 and the waist-shaped ring 15 do not swing, and the rear end of the U-shaped plate 16 contacts the push plate 27. When the U-shaped plate 16 moves forward, it will drive the two push plates 27 to move forward. The push plates 27 slide forward along the two cylindrical rods 29 opposite to each other. The two cylindrical rods 29 opposite to each other can make the push plates 27 more stable when moving, and the push plates 27 drive the two racks 28 on the corresponding side to move forward; The upper rack 28 drives the upper first gear 26 to rotate, the upper first gear 26 drives the upper first swing rod 12 to swing forward on the first fixed rod 10, the two first swing rods 12 jointly drive the connecting plate 14 to move forward, the connecting plate 14 drives the two second swing rods 13 to move forward, and at the same time, when the first swing rod 12 swings forward, it will drive the second gear 31 to rotate, the second gear 31 drives the third gear 32 to rotate in the opposite direction, and the third gear 32 drives the upper second swing rod 13 to swing in the opposite direction, and the angle between the upper first swing rod 12 and the second swing rod 13 gradually increases. The lower end of the second swing rod 13 is hingedly connected to the second fixed rod 11, and the two first swing rods 12 and the two second swing rods 13 form two parallelograms. The second swing rod 13 starts to drive the second fixed rod 11 to move straight forward without deviation. The left and right second fixed rods 11 jointly drive the first box body 5 to move forward, and the distance the first box body 5 moves forward is twice the distance the connecting plate 14 moves forward, which can speed up the speed at which the first box body 5 extends out of the housing 2. The first box body 5 is gradually separated from the first cover plate 7, and the first box body 5 drives the guide block 22 to slide forward along the guide rail 21 on the corresponding side. The rack 28 on the lower side drives the first gear 26 on the lower side to rotate, and the first gear 26 on the lower side drives the first swing rod 12 on the lower side to swing forward on the first fixed rod 10, and the two first swing rods 12 jointly drive the connecting plate 14 to move forward. At the same time, when the first swing rod 12 swings forward, it drives the second gear 31 to rotate, and the second gear 31 drives the third gear 32 to rotate in the opposite direction, and the third gear 32 drives the second swing rod 13 on the lower side to swing in the opposite direction. The angle between the first swing rod 12 and the second swing rod 13 on the lower side gradually increases, and the second swing rod 13 accelerates to drive the second fixed rod 11 to move forward. The left and right second fixed rods 11 jointly drive the second box body 6 to move forward, and the second box body 6 drives the guide block 22 to slide forward along the guide rail 21 on the corresponding side, and the second box body 6 moves forward synchronously with the first box body 5 and extends out from the food delivery port 3; When the first box 5 and the second box 6 are all extended out of the meal delivery port 3, the button is pressed to turn off the motor 20, and the staff can put the prepared meals into the first box 5 and the second box 6. The arrangement of the first box 5 and the second box 6 can carry more meals, and some meals with stronger odors can be placed separately to avoid the occurrence of odor contamination and affect the quality of the meals; After all the meals to be delivered are placed in the first box 5 and the second box 6, the staff can press a button to start the motor 20 to rotate counterclockwise, the motor 20 drives the lead screw 19 to rotate counterclockwise, the lead screw 19 drives the U-shaped plate 16 to move backward, the U-shaped plate 16 drives the two U-shaped frames 17 to move backward, at this time the direction of the waist-shaped ring 15 is consistent with the direction of the U-shaped frame 17, the U-shaped frame 17 drives the plug 18 to slide backward along the waist-shaped ring 15, the waist-shaped ring 15 and the door panel 4 do not swing, and at the same time the U-shaped plate 16 drives the two baffles 30 to move backward; When the baffle 30 contacts the front end surface of the push plate 27, the baffle 30 starts to drive the push plate 27 to slide backward along the two cylindrical rods 29, the push plate 27 drives the two racks 28 to move backward, the racks 28 drive the first gear 26 on the corresponding side to rotate, the first gear 26 drives the first swing rod 12 to swing backward, the first swing rod 12 drives the second swing rod 13 to swing in the opposite direction through the second gear 31 and the third gear 32, the second swing rod 13 drives the second fixed rod 11 to move backward, and the multiple second fixed rods 11 jointly drive the first box body 5 and the second box body 6 to move backward; When the first box body 5 and the second box body 6 move backward, the plug post 18 gradually slides to the rear end of the waist ring 15, and the plug post 18 starts to drive the waist ring 15 and the door panel 4 to swing backward. When the first box body 5 and the second box body 6 pass through the food delivery opening 3 and completely enter the shell 2, the two door panels 4 opposite to each other on the left and right cover the food delivery opening 3, and the inclined surface of the upper end of the first box body 5 contacts the lower end surface of the first cover plate 7, and the first box body 5 presses the first cover plate 7 upward, and the first cover plate 7 drives multiple T-shaped rods 24 to slide upward along the fixed plate 23. At the same time, the first cover plate 7 presses the pressure spring 25 on the T-shaped rod 24 upward, and the elastic force of the pressure spring 25 on the first cover plate 7 gradually increases, so that the first cover plate 7 and the first box body 5 fit more closely, and at the same time, the upper end surface of the second box body 6 and the lower end surface of the second cover plate 8 fit more closely, and the setting of the heat preservation layer 9 can effectively keep the food warm to prevent the food from becoming too cold during transportation, affecting the customer's dining experience; The staff presses a button to turn off the motor 20 to move the robot base 1 to the side of the customer. The customer only needs to press a button, and the motor 20 starts to rotate clockwise, so that the first box body 5 and the second box body 6 can extend out of the outer shell 2, so that the food inside the first box body 5 and the second box body 6 can be taken out. Then, the button is pressed to start the motor 20 to rotate counterclockwise, so that the first box body 5 and the second box body 6 can enter the outer shell 2. At the same time, the door panel 4 automatically closes the food delivery port 3, and the robot base 1 can be moved to the side of the staff to continue delivering food.

[0042] The motor 20 in the present invention and the circuit for controlling the motor 20 to rotate clockwise and counterclockwise through buttons are both prior arts. A power source for driving the motor 20 to rotate and the robot to run is provided inside the housing 2, and the specific process will not be described in detail here.

[0043] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element 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.

[0044] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A food delivery robot with a built-in heat preservation box, comprising a robot base (1), characterized in that: The robot base (1) is provided with a shell (2) at the upper end, and the upper and lower parts of the front side wall of the shell (2) are provided with a meal delivery opening (3) that is connected inside and outside, and two door panels (4) that are opposite to each other are hinged at the meal delivery opening (3), and the two door panels (4) can completely cover the meal delivery opening (3), and the plurality of door panels (4) can swing back and forth synchronously, and the upper and lower parts of the shell (2) are respectively longitudinally slidably connected with a first box body (5) and a second box body (6) with an opening facing upward, and the left and right side walls of the first box body (5) and the second box body (6) are connected to the shell ( 2) are provided with a driving mechanism, the driving mechanism can drive the first box body (5) and the second box body (6) to move forward and backward, the upper and lower parts of the outer shell (2) are respectively vertically slidably connected with a first cover plate (7) and a second cover plate (8), the first cover plate (7) can cover the opening at the upper end of the first box body (5), and the second cover plate (8) can cover the opening at the upper end of the second box body (6), and a heat insulation layer (9) is provided on the inner surface of the first box body (5) and the second box body (6) and on the lower end surface of the first cover plate (7) and the second cover plate (8); The driving mechanism comprises a first fixing rod (10) and a second fixing rod (11), the first fixing rod (10) being fixedly connected to the housing (2), the first box body (5) and the second box body (6) being fixedly connected to the second fixing rod (11) on the corresponding side, the first fixing rod (10) being hingedly connected to first swing rods (12) in the up-down direction at both front and rear ends, the first swing rod (12) being able to swing alternately with the door panel (4), the first fixing rod (10) and the two first swing rods (12) forming a parallelogram together, the second fixing rod (11) and the two second swing rods (13) forming a parallelogram together, the two first swing rods (12) and the two second swing rods (13) being hingedly connected to a connecting plate (14) at their free ends, the second swing rod (13) swinging in opposite directions to the first swing rod (12).

2. The food delivery robot with a built-in thermal insulation box according to claim 1, characterized in that: The door panel (4) is provided with a waist-shaped ring (15) in the left and right directions at the rear end, and a U-shaped plate (16) located between the first box body (5) and the second box body (6) and opening forward is provided in the outer shell (2), and both free ends of the U-shaped plate (16) are provided with a U-shaped frame (17), and both upper and lower free ends of the U-shaped frame (17) are provided with upper and lower axial plug posts (18), and the free ends of the plug posts (18) are located in the waist-shaped ring (15) on the corresponding side.

3. The food delivery robot with a built-in thermal insulation box according to claim 2, characterized in that: The rear end of the U-shaped plate (16) is threadedly connected to a lead screw (19) in a front-to-back axial direction. An electric motor (20) is arranged in the housing (2) and is located behind the U-shaped plate (16) and in a front-to-back axial direction. The output end of the electric motor (20) is coaxially fixedly connected to the lead screw (19).

4. The food delivery robot with a built-in thermal insulation box according to claim 1, characterized in that: Two guide rails (21) in the front-to-rear direction and facing each other up and down are provided at both left and right ends of the outer shell (2); guide blocks (22) are provided at both left and right ends of the first box body (5) and the second box body (6); the guide blocks (22) are longitudinally slidably connected to the guide rails (21) on the corresponding sides.

5. The food delivery robot with a built-in thermal insulation box according to claim 1, characterized in that: The upper and lower parts of the housing (2) are both provided with a fixing plate (23), and the four corners of the fixing plate (23) are vertically slidably connected to T-shaped rods (24). The upper ends of the first cover plate (7) and the second cover plate (8) are fixedly connected to a plurality of T-shaped rods (24) on the corresponding sides. The first cover plate (7) and the second cover plate (8) can drive the T-shaped rods (24) on the corresponding sides to move up and down, thereby realizing that the first cover plate (7) and the second swing rod (13) are both vertically slidably connected to the housing (2).

6. The food delivery robot with a built-in thermal insulation box according to claim 1, characterized in that: The first cover plate (7) and the second swing rod (13) are both inclined with the front higher and the back lower, and the upper end surfaces of the first box body (5) and the second box body (6) are both inclined with the front higher and the back lower, so that the first cover plate (7) and the first box body (5) and the second cover plate (8) and the second box body (6) can better fit each other, and a pressure spring (25) is sleeved on the vertical part of the T-shaped rod (24), the upper pressure spring (25) is located between the first cover plate (7) and the upper fixed plate (23), and the lower pressure spring (25) is located between the second cover plate (8) and the lower fixed plate (23).

7. The food delivery robot with a built-in thermal insulation box according to claim 1, characterized in that: A first gear (26) in the front-to-rear axial direction is provided at the hinged joint between the first swing rod (12) and the first fixed rod (10) on the right side. Push plates (27) in the upper and lower directions are longitudinally slidably connected to the left and right parts of the housing (2). Racks (28) in the front-to-rear direction are provided at the upper and lower ends of the push plates (27). The racks (28) are meshed with the first gear (26) on the corresponding side.

8. The food delivery robot with a built-in thermal insulation box according to claim 1, characterized in that: Two cylindrical rods (29) are provided in the left and right parts of the housing (2) in a front-to-rear axial direction and facing each other vertically. The two cylindrical rods (29) facing each other vertically are slidably connected to the push plates (27) on the corresponding sides, thereby realizing a longitudinal sliding connection between the push plates (27) and the housing (2) without contact.

9. The food delivery robot with a built-in thermal insulation box according to claim 2, characterized in that: The U-shaped plate (16) is provided with baffles (30) at both left and right ends, the push plate (27) is located between the baffles (30) and the rear end of the U-shaped plate (16), and a gap is provided between the push plate (27) and the rear end of the U-shaped plate (16). When the U-shaped plate (16) moves forward, due to the gap between the rear end of the U-shaped plate (16) and the push plate (27), the U-shaped plate (16) does not push the push plate (27) to move forward. At this time, the first swing rod (12) does not swing, and the U-shaped plate (16) drives the two U-shaped frames (17) to move forward. The U-shaped frames (17) drive The waist-shaped ring (15) and the door panel (4) swing forward. When the food delivery opening (3) is fully opened, the waist-shaped ring (15) swings in the same direction as the U-shaped frame (17). At this time, the plug post (18) on the U-shaped frame (17) slides along the waist-shaped ring (15). The door panel (4) does not swing, and the rear end of the U-shaped plate (16) contacts the push plate (27). The U-shaped plate (16) drives the push plate (27) to move forward, and the push plate (27) drives the first swing rod (12) to swing forward, thereby realizing the first swing rod (12) and the door panel (4) swinging alternately.

10. The food delivery robot with a built-in thermal insulation box according to claim 1, characterized in that: A second gear (31) is provided at the hinged joint between the first swing rod (12) and the connecting plate (14) on the right side, and a third gear (32) meshing with the second gear (31) is provided at the hinged joint between the second swing rod (13) and the connecting plate (14) on the left side.

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