A food delivery robot with heat preservation function

Abstract

The present invention relates to the technical field of food delivery, and discloses a food delivery robot with a heat preservation function, comprising a heating seat placed on the upper end surface of an intelligent trolley, the inner cavity of the heating seat is covered with a sandwich pot body, and also comprises a heat preservation pot cover, the heat preservation pot cover is detachably mounted on the upper end of the sandwich pot body, a driving mechanism, the driving mechanism is arranged in the middle of the upper end surface of the heat preservation pot cover; a stirring mechanism, the stirring mechanism is arranged in the inner cavity of the sandwich pot body; an air replenishing mechanism, the air replenishing mechanism is arranged above the heat preservation pot cover; a water replenishing mechanism, the water replenishing mechanism is arranged on the left and right sides of the upper end surface of the heat preservation pot cover. The invention can inject hot air into the sandwich inner liner of the sandwich pot body through the cooperation of the driving mechanism and the air replenishing mechanism, so as to effectively prevent the loss of heat in the pot body, and at the same time, a stirring mechanism and a water replenishing mechanism are arranged, so that water can be added to the pot regularly and stirred, so that the soup is always in the best flavor, improving the user's eating taste.

Description

Technical Field

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

[0002] Food delivery robots are mainly used in commercial scenarios such as restaurants. They have functions such as automatic driving and voice interaction. At the same time, they can meet the carrying needs of large-weight food and tableware. Food delivery robots have many functions similar to self-driving cars, such as cameras with 360-degree field of view, ultrasonic sensors, GPS navigation, measuring devices, gyroscopes, etc., and have four-wheel drive systems. They can easily go up and down stairs without being restricted by road conditions. They can move freely between restaurants and customers, providing customers with convenient delivery services.

[0003] After searching, it is found that a food delivery robot with insulation function proposed in patent publication number CN116619408A includes a chassis, a cold food insulation box and a hot food insulation box are fixedly installed on the top of the chassis, an electric heating and auxiliary heat dissipation structure are fixedly installed inside the hot food insulation box, a heat dissipation pipe is fixedly installed between the hot food insulation box and the cold food insulation box, the cold food insulation box is composed of a cooling base, a cold food storage box and a water tank, an ice tray with a mesh structure is installed in the internal area of ​​the cooling base, and a number of storage drawers are movably installed in the cold food storage box.

[0004] In the above patent documents, cold food and hot food can be stored in separate areas by using cold food storage boxes and hot food storage boxes, so that the taste of food can be guaranteed to remain unchanged during short-distance transportation. However, in the process of delivering some food, such as soup food, the solid essence in the soup is easy to sink and settle due to gravity during transportation, resulting in uneven concentration of the entire soup food. At the same time, as the hot food storage box continues to heat the soup, it will cause water evaporation. If fresh water is not added in time, the soup will be too thick and the salinity will increase, thereby reducing the user's eating taste. Therefore, a food delivery robot with a heat preservation function is urgently needed to solve such problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The purpose of the present invention is to provide a food delivery robot with a heat preservation function to solve the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solution: a food delivery robot with heat preservation function, comprising an intelligent vehicle, a heating seat is placed on the upper end surface of the intelligent vehicle, the inner cavity of the heating seat is covered with a sandwich pot body, and further comprising:

[0009] A heat-insulating pot cover, which is detachably mounted on the upper end of the sandwich pot body and is used to ensure the sealing of the inner space of the sandwich pot body;

[0010] A driving mechanism, the driving mechanism is arranged at the middle of the upper end surface of the heat preservation pot cover, and the driving mechanism is used to provide power output by itself;

[0011] A stirring mechanism, the stirring mechanism is arranged in the inner cavity of the sandwich pot body, and the stirring mechanism is used to mix the soup in the sandwich pot body;

[0012] An air supply mechanism, which is arranged above the heat preservation pot cover and is used to supply air into the sandwich pot body;

[0013] A water replenishing mechanism is arranged on the left and right sides of the upper end surface of the heat-insulating pot cover, and is used to replenish clean water into the sandwich pot body.

[0014] Preferably, the driving mechanism includes a pressure-changing disk fixedly mounted on the middle part of the upper end surface of the heat-insulating pot cover, a driving cavity is opened in the middle part of the inner cavity of the pressure-changing disk, heat transfer cavities are opened on both sides of the inner cavity of the pressure-changing disk on the driving cavity, an air inlet pipe is fixedly mounted on the front side of the side wall of the heat-insulating pot cover, the inner cavity of the air inlet pipe is provided with a one-way air valve whose outlet faces the inner cavity of the heat-transfer cavity, an air outlet pipe is fixedly mounted on the rear side of the side wall of the heat-insulating pot cover, the inner cavity of the air outlet pipe is provided with a one-way air valve whose outlet faces the outside.

[0015] Preferably, the sandwich pot body is arranged as a double-layer structure, and a thermal insulation heat pipe is fixedly installed on the inner cavity of the sandwich layer of the sandwich pot body, and the thermal insulation heat pipe is arranged in a spiral shape. A connecting pipe connected to the thermal insulation heat pipe is fixedly installed on the rear end face of the sandwich pot body, and the air outlet pipe is detachably installed on the connecting pipe. A vent pipe connected to the thermal insulation heat pipe is fixedly installed on the right side of the side wall of the sandwich pot body, and an electromagnetic exhaust valve is installed in the inner cavity of the vent pipe. A temperature detector is fixedly installed on the inner cavity side wall of the thermal insulation pot cover, and lifting handles are fixedly installed on the front and rear sides of the upper end face of the thermal insulation pot cover.

[0016] Preferably, a driving column is rotatably mounted on the bottom surface of the driving cavity of the pressure-changing disk, a guide impeller is fixedly mounted on the side wall of the driving column, a hexagonal column is fixedly mounted on the lower end surface of the driving column, and the hexagonal column is rotatably connected to the pressure-changing disk.

[0017] Preferably, the air replenishing mechanism includes a piston cylinder fixedly mounted in the middle of the upper end surface of the pressure-changing disk, and a piston disk slidably mounted in the inner cavity of the piston cylinder, a piston rod is fixedly mounted on the lower end surface of the piston disk, the piston rod is hollow, the piston rod is connected through the pressure-changing disk, a U-shaped ring groove is provided on the upper side wall of the piston rod, a limit block is slidably mounted in the inner cavity of the U-shaped ring groove, and the limit block is fixedly mounted on the inner wall of the driving column.

[0018] Preferably, an air supply port is provided on the side wall of the piston disk, and the inner cavity of the air supply port is provided with a one-way air valve with an outlet to the inner cavity of the piston rod, the piston rod is connected to the hexagonal prism, and the hexagonal prism is provided with a through hole, and an air supply pipe is fixedly installed on the side wall of the piston cylinder, and the inner cavity of the air supply pipe is provided with a one-way air valve with an outlet to the inner cavity of the piston cylinder, the shape of the air supply pipe is bent downward, and a pressure relief valve is provided on the front side of the side wall of the thermal insulation pot cover.

[0019] Preferably, the stirring mechanism includes a positioning column rotatably installed at the bottom of the inner cavity of the sandwich pot body, a first stirring plate is fixedly installed on the left and right sides of the outer wall of the positioning column, a fixing ear is fixedly installed on the upper and lower end surfaces of the first stirring plate, a rotating rod is rotatably installed between the upper and lower fixing ears, a second stirring plate is fixedly installed in the middle of the outer wall of the rotating rod, and a torsion spring is wound around the upper and lower sides of the outer wall of the rotating rod.

[0020] Preferably, the two ends of the torsion spring are respectively connected to the fixing ear and the side wall of the second stirring plate, the upper end surface of the positioning column is provided with a hexagonal groove, the size of the hexagonal groove corresponds to the hexagonal prism, the side wall of the first stirring plate is provided with a strip groove, and the side wall of the second stirring plate is provided with a hole groove.

[0021] Preferably, the water replenishing mechanism includes spring rods fixedly mounted on the left and right sides of the upper end surface of the thermal insulation pot cover, a material bin is fixedly mounted on the upper end surface of the spring rods, a drainage ball is fixedly connected to the lower end surface of the material bin, the inner cavity of the drainage ball is hollow, the drainage ball is connected to the material bin, sliding grooves are arranged on the left and right sides of the upper end surface of the thermal insulation pot cover below the material bin, and oblique grooves are arranged on the left and right sides of the sliding groove.

[0022] Preferably, the drainage ball slides in the inner cavity of the sliding groove, water outlet holes are opened on the left and right side walls of the drainage ball, and an extrusion column is fixedly installed on the upper part of the side wall of the positioning column, and the end face of the extrusion column is arranged in an arc shape.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. When distributing and transporting soup stock or other porridge foods, the invention only requires adding soup stock or other porridge foods into the sandwich pot body and then closing the heat preservation pot lid. The sandwich pot body is set as a double-layer structure, which can effectively reduce the loss of heat of food in the sandwich pot. At the same time, since the heat preservation pot lid is detachably installed, it is convenient for diners to take out the food in the sandwich pot by themselves, and for the logistics personnel to clean the inner wall of the sandwich pot in the later stage. A temperature detector is fixedly installed on the inner cavity side wall of the heat preservation pot lid, which can monitor the ambient temperature in the sandwich pot in real time. When the ambient temperature in the sandwich pot is lower than the preset value, the heating seat is triggered to start, so as to heat the bottom of the sandwich pot body. At this time, the food in the sandwich pot can be gradually heated up to maintain a good eating taste.

[0025] 2. When the invention heats up the food in the sandwich pot, part of the heat can be conducted to the driving cavity and the heat transfer cavity in the pressure-changing disk through the heat-insulating pot cover, so that the intermolecular distance of the gas inside it gradually increases. As the pressure of the gas gradually increases, it eventually exceeds the threshold of the one-way air valve set at the outlet pipe. At this time, the hot air in the driving cavity and the heat transfer cavity can enter the heat-insulating heat pipe through the outlet pipe and the connecting pipe. The heat-insulating heat pipe is spirally arranged and arranged in the sandwich liner of the sandwich pot, which can further slow down the problem of heat loss of food in the sandwich pot, reduce energy loss, and greatly improve the heat preservation performance of the entire device.

[0026] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a food delivery robot with a heat preservation function according to the present invention;

[0028] Figure 2 It is a front view structural schematic diagram of a sandwich pot body of a food delivery robot with heat preservation function according to the present invention;

[0029] Figure 3 It is a schematic diagram of the rear view structure of a sandwich pot body of a food delivery robot with a heat preservation function according to the present invention;

[0030] Figure 4 It is a schematic cross-sectional structure diagram of a heat preservation pot cover of a food delivery robot with heat preservation function according to the present invention;

[0031] Figure 5 It is a partial cross-sectional structural schematic diagram of a food delivery robot with a heat preservation function according to the present invention;

[0032] Figure 6 A food delivery robot with a heat preservation function according to the present invention Figure 5 A schematic diagram of the enlarged structure of the middle A area;

[0033] Figure 7 It is a schematic cross-sectional structure diagram of a pressure-changing disk of a food delivery robot with a heat preservation function according to the present invention;

[0034] Figure 8 It is a schematic cross-sectional structure diagram of a piston cylinder of a food delivery robot with a heat preservation function according to the present invention;

[0035] Fig. 9 It is a schematic cross-sectional structure diagram of a driving column of a food delivery robot with a heat preservation function according to the present invention;

[0036] Fig.10 It is a schematic diagram of a partial structure of a sandwich pot body of a food delivery robot with a heat preservation function viewed from above according to the present invention;

[0037] Fig.11 The present invention is a schematic diagram of a partial cross-sectional structure of a sandwich pot body of a food delivery robot with a heat preservation function.

[0038] In the figure: 1. Intelligent car; 2. Heating seat; 3. Sandwich pot body; 31. Insulated heat pipe; 32. Connecting pipe; 33. Vent pipe; 4. Insulated pot cover; 41. Temperature detector; 42. Lifting handle; 43. Pressure relief valve; 44. Sliding groove; 45. Oblique groove; 5. Driving mechanism; 51. Pressure change disc; 511. Driving cavity; 512. Heat transfer cavity; 52. Inlet pipe; 53. Outlet pipe; 531. Inlet pipe; 54. Driving column; 55. Guide impeller; 56. Hexagonal column; 56 1. Through hole; 6. Stirring mechanism; 61. Positioning column; 611. Hexagonal groove; 62. First stirring plate; 63. Fixing ear; 64. Rotating rod; 65. Second stirring plate; 66. Torsion spring; 7. Air supply mechanism; 71. Piston cylinder; 72. Piston disc; 721. Air supply port; 73. Piston rod; 731. U-shaped ring groove; 732. Limit block; 74. Air supply pipe; 8. Water supply mechanism; 81. Spring rod; 82. Silo; 83. Drain ball; 831. Water outlet; 84. Extrusion column. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-Figure 11 , the present invention provides a technical solution of a food delivery robot with a heat preservation function:

[0041] A food delivery robot with a heat preservation function comprises an intelligent trolley 1, a heating seat 2 is placed on the upper end surface of the intelligent trolley 1, the inner cavity of the heating seat 2 is covered with a sandwich pot body 3, and further comprises:

[0042] The heat preservation pot cover 4 is detachably mounted on the upper end of the sandwich pot body 3, and the heat preservation pot cover 4 is used to ensure the sealing of the inner space of the sandwich pot body 3;

[0043] The driving mechanism 5 is arranged at the middle of the upper end surface of the heat preservation pot cover 4, and the driving mechanism 5 is used to provide power output by itself;

[0044] A stirring mechanism 6, which is disposed in the inner cavity of the sandwich pot body 3 and is used to mix the soup in the sandwich pot body 3;

[0045] An air supply mechanism 7 is arranged above the heat preservation pot cover 4 and is used to supply air into the sandwich pot body 3;

[0046] The water replenishing mechanism 8 is arranged on the left and right sides of the upper end surface of the heat preservation pot cover 4 , and the water replenishing mechanism 8 is used to replenish clean water into the sandwich pot body 3 .

[0047] Further, the driving mechanism 5 includes a pressure-changing disk 51 fixedly mounted on the middle of the upper end surface of the heat-insulating pot cover 4, a driving cavity 511 is opened in the middle of the inner cavity of the pressure-changing disk 51, and heat transfer cavities 512 are opened on both sides of the inner cavity of the pressure-changing disk 51 on the driving cavity 511, an air inlet pipe 52 is fixedly mounted on the front side of the side wall of the heat-insulating pot cover 4, and a one-way air valve is arranged in the inner cavity of the air inlet pipe 52, and the outlet to the inner cavity of the heat-transfer cavity 512 is disposed, and an air outlet pipe 53 is fixedly mounted on the rear side of the side wall of the heat-insulating pot cover 4, and the inner cavity of the air outlet pipe 53 is disposed with a one-way air valve, and the outlet to the outside is disposed;

[0048] The sandwich pot body 3 is set as a double-layer structure, and the sandwich inner cavity of the sandwich pot body 3 is fixedly installed with a heat preservation heat pipe 31, and the heat preservation heat pipe 31 is spirally arranged. The rear end surface of the sandwich pot body 3 is fixedly installed with a connecting pipe 32 connected to the heat preservation heat pipe 31, and the air outlet pipe 53 is detachably installed on the connecting pipe 32. The right side of the side wall of the sandwich pot body 3 is fixedly installed with a vent pipe 33 connected to the heat preservation heat pipe 31, and the inner cavity of the vent pipe 33 is installed with an electromagnetic exhaust valve. The inner cavity side wall of the heat preservation pot cover 4 is fixedly installed with a temperature detector 41, and the upper end surface of the heat preservation pot cover 4 is fixedly installed with a lifting handle 42 on both sides;

[0049] A driving column 54 is rotatably mounted on the bottom of the driving cavity 511 of the pressure-changing disk 51 , a guide impeller 55 is fixedly mounted on the side wall of the driving column 54 , a hexagonal column 56 is fixedly mounted on the lower end surface of the driving column 54 , and the hexagonal column 56 is rotatably connected to the pressure-changing disk 51 .

[0050] It should be noted that when the device is used to distribute and transport broth or other porridge foods, it is only necessary to add the broth or other porridge foods into the sandwich pot body 3 and then close the heat-insulating pot lid 4. By setting the sandwich pot body 3 as a double-layer structure, the heat loss of food in the sandwich pot body 3 can be effectively reduced. At the same time, since the heat-insulating pot lid 4 is detachably installed, diners can quickly and conveniently take out the food in the sandwich pot body 3 by pulling the handle 42, and it is convenient for the later logistics personnel to clean the inner wall of the sandwich pot body 3; a temperature detector 41 is fixedly installed on the inner cavity side wall of the heat-insulating pot lid 4, which can monitor the ambient temperature in the sandwich pot body 3 in real time. When the ambient temperature in the sandwich pot body 3 is lower than the preset value, the heating seat 2 is triggered to start, so as to heat the bottom of the sandwich pot body 3. At this time, the food in the sandwich pot body 3 can gradually heat up to maintain a good eating taste.

[0051] Furthermore, the air replenishing mechanism 7 includes a piston cylinder 71 fixedly mounted on the middle of the upper end surface of the pressure-changing disk 51, and a piston disk 72 slidably mounted in the inner cavity of the piston cylinder 71, a piston rod 73 is fixedly mounted on the lower end surface of the piston disk 72, the piston rod 73 is hollow, the piston rod 73 is connected to the pressure-changing disk 51, and a U-shaped annular groove 731 is provided on the upper side wall of the piston rod 73, a limit block 732 is slidably mounted in the inner cavity of the U-shaped annular groove 731, and the limit block 732 is fixedly mounted on the inner side wall of the driving column 54;

[0052] An air supply port 721 is provided on the side wall of the piston disk 72, and the inner cavity of the air supply port 721 is provided with a one-way air valve whose outlet is toward the inner cavity of the piston rod 73. The piston rod 73 is connected to the hexagonal prism 56, and the hexagonal prism 56 is provided with a through hole 561. An air supply pipe 74 is fixedly installed on the side wall of the piston cylinder 71, and the inner cavity of the air supply pipe 74 is provided with a one-way air valve whose outlet is toward the inner cavity of the piston cylinder 71. The shape of the air supply pipe 74 is bent downward, and a pressure relief valve 43 is provided on the front side of the side wall of the thermal insulation pot cover 4.

[0053] It should be noted that as the temperature in the sandwich pot body 3 gradually increases, the heat will be conducted to the driving cavity 511 and the heat transfer cavity 512 in the pressure-changing disk 51 through the heat-insulating pot cover 4, so that the intermolecular spacing of the gas inside it gradually increases. As the pressure of the gas gradually increases, it will eventually exceed the threshold of the one-way air valve set at the outlet pipe 53. At this time, the hot air in the driving cavity 511 and the heat transfer cavity 512 can enter the heat-insulating heat pipe 31 through the outlet pipe 53 and the connecting pipe 32. The heat-insulating heat pipe 31 is spirally arranged and arranged in the sandwich liner of the sandwich pot body 3, which can further slow down the problem of heat loss of food in the sandwich pot body 3, reduce energy loss, and improve the heat preservation performance of the entire device.

[0054] Further, the stirring mechanism 6 includes a positioning column 61 rotatably mounted at the bottom of the inner cavity of the sandwich pot body 3, a first stirring plate 62 is fixedly mounted on the left and right sides of the outer wall of the positioning column 61, a fixing ear 63 is fixedly mounted on the upper and lower end surfaces of the first stirring plate 62, a rotating rod 64 is rotatably mounted between the upper and lower fixing ears 63, a second stirring plate 65 is fixedly mounted on the middle of the outer wall of the rotating rod 64, and a torsion spring 66 is wound around the upper and lower sides of the outer wall of the rotating rod 64;

[0055] The two ends of the torsion spring 66 are respectively connected to the fixing ear 63 and the side wall of the second stirring plate 65. The upper end surface of the positioning column 61 is provided with a hexagonal groove 611, and the size of the hexagonal groove 611 corresponds to the hexagonal prism 56. The side wall of the first stirring plate 62 is provided with a strip groove, and the side wall of the second stirring plate 65 is provided with a hole groove.

[0056] It should be noted that when the positioning column 61 rotates, the first stirring plate 62 and the second stirring plate 65 fixed on the side wall of the positioning column 61 also rotate accordingly to achieve stirring and mixing of the broth water body. Since the extrusion column 84 is in regular contact with the drainage ball 83, the rotation rate of the positioning column 61 also decreases under the friction between the two. At this time, the centrifugal force of the second stirring plate 65 will continue to decrease, which is insufficient to overcome the pressure of the torsion spring 66 on the second stirring plate 65. The second stirring plate 65 will bend, so that the angle formed between the second stirring plate 65 and the first stirring plate 62 is reduced. At this time, the stirring radius of the first stirring plate 62 and the second stirring plate 65 is reduced. Therefore, through the above, the present device can change the stirring radius of the broth according to the rotation cycle of the positioning column 61, so as to fully improve the efficiency and quality of mixing the broth.

[0057] Further, the water replenishing mechanism 8 includes a spring rod 81 fixedly mounted on the left and right sides of the upper end surface of the heat preservation pot cover 4, a material bin 82 is fixedly mounted on the upper end surface of the spring rod 81, a drainage ball 83 is fixedly connected to the lower end surface of the material bin 82, the inner cavity of the drainage ball 83 is hollow, the drainage ball 83 is connected to the material bin 82, and a sliding groove 44 is arranged on the left and right sides of the upper end surface of the heat preservation pot cover 4 below the material bin 82, and an oblique groove 45 is arranged on the left and right sides of the sliding groove 44;

[0058] The drainage ball 83 slides in the inner cavity of the sliding groove 44. Water outlet holes 831 are opened on the left and right side walls of the drainage ball 83. An extrusion column 84 is fixedly installed on the upper part of the side wall of the positioning column 61. The end surface of the extrusion column 84 is arranged in an arc shape.

[0059] It should be noted that as the driving column 54 continues to rotate, the hexagonal prism 56 will also drive the positioning column 61 to rotate. At this time, the extrusion column 84 fixed on the side wall of the positioning column 61 will also rotate accordingly. When the extrusion column 84 contacts the drainage ball 83, the extrusion column 84 can push the drainage ball 83 upward so that the water outlet 831 of the drainage ball 83 is aligned with the oblique groove 45. At this time, the water outlet 831 can be in a conductive state, so that the clean water in the silo 82 can enter the oblique groove 45 through the water outlet 831 at the drainage ball 83, thereby replenishing the water in the sandwich pot body 3 and neutralizing the high concentration.

[0060] Working principle:

[0061] When the device is used to deliver and transport soup or other porridge food, the soup or other porridge food only needs to be added into the sandwich pot body 3 and then the heat preservation pot cover 4 is closed. The sandwich pot body 3 is provided with a double-layer structure, which can effectively reduce the heat loss of the food in the sandwich pot body 3. At the same time, since the heat preservation pot cover 4 is detachably installed, it is convenient for diners to take out the food in the sandwich pot body 3 by themselves, and for the logistics staff to clean the inner wall of the sandwich pot body 3 later.

[0062] When the whole device is delivering and transporting food, a temperature detector 41 is fixedly installed on the inner cavity side wall of the heat preservation pot cover 4, which can monitor the ambient temperature in the sandwich pot body 3 in real time. When the ambient temperature in the sandwich pot body 3 is lower than the preset value, the heating seat 2 is triggered to start, and the bottom of the sandwich pot body 3 is heated. At this time, the food in the sandwich pot body 3 can be gradually heated up to maintain a good eating taste;

[0063] As the temperature in the sandwich pot body 3 gradually increases, the heat will be transferred to the driving cavity 511 and the heat transfer cavity 512 in the pressure change disk 51 through the heat preservation pot cover 4, so that the intermolecular distance of the gas inside it gradually increases. As the pressure of the gas gradually increases, it will eventually exceed the threshold of the one-way air valve set at the outlet pipe 53. At this time, the hot air in the driving cavity 511 and the heat transfer cavity 512 can enter the heat preservation heat pipe 31 through the outlet pipe 53 and the connecting pipe 32. The heat preservation heat pipe 31 is spirally arranged and arranged in the sandwich inner pot of the sandwich pot body 3, which can further slow down the problem of heat loss of food in the sandwich pot body 3, reduce energy loss, and improve the heat preservation performance of the entire device.

[0064] Since the food is always at a relatively high temperature, the water vapor in the sandwich pot body 3 can be evaporated and discharged from the pressure relief valve 43. At this time, the sandwich pot body 3 will be in a low pressure state. As time goes by, the heat in the cavity of the heat preservation heat pipe 31 will be consumed. At this time, the electromagnetic exhaust valve in the vent pipe 33 can be set to release a large amount of air in the heat preservation heat pipe 31. At this time, the air in the driving cavity 511 and the heat transfer cavity 512 will be in a negative pressure state. The outside cold air can break through the one-way air valve at the air inlet pipe 531 to replenish the gas in the driving cavity 511 and the heat transfer cavity 512. With the inflow of cold air, a certain strength of airflow will be formed through the driving cavity 511, which can drive the guide impeller 55 to make the driving column 512 54 rotates. Due to the fixed limit block 732 on the inner wall of the driving column 54, the piston rod 73 can slide up and down with the rotation of the driving column 54 under the restraining effect of the U-shaped ring groove 731 provided on the upper side wall of the piston rod 73, so that the piston plate 72 slides in the inner cavity of the piston cylinder 71. As the volume of the upper cavity of the inner cavity of the piston cylinder 71 changes continuously, the outside air can be sucked in and stored in the piston cylinder 71, and then injected into the piston rod 73 from the air supply port 721, and finally discharged into the sandwich pot body 3 through the through hole 561 provided on the hexagonal column 56, so as to achieve the balance of air pressure and ensure that the whole device can be used normally and can be heated to the use temperature;

[0065] As the driving column 54 rotates continuously, the hexagonal column 56 will also drive the positioning column 61 to rotate. At this time, the extrusion column 84 fixed on the side wall of the positioning column 61 will also rotate accordingly. When the extrusion column 84 contacts the drainage ball 83, the extrusion column 84 can push the drainage ball 83 upward, so that the water outlet 831 of the drainage ball 83 is aligned with the oblique groove 45. At this time, the water outlet 831 can be in a conducting state, so that the clean water in the silo 82 can enter the oblique groove 45 through the water outlet 831 at the drainage ball 83, so as to supplement the water in the sandwich pot body 3 and neutralize the high concentration.

[0066] When the positioning column 61 rotates, the first stirring plate 62 and the second stirring plate 65 fixed on the side wall of the positioning column 61 also rotate accordingly to achieve stirring and mixing of the broth water body. Since the extrusion column 84 contacts the drainage ball 83 regularly, the rotation rate of the positioning column 61 also decreases under the friction between the two. At this time, the centrifugal force of the second stirring plate 65 will continue to decrease, which is insufficient to overcome the pressure of the torsion spring 66 on the second stirring plate 65. The second stirring plate 65 will bend, so that the angle formed between the second stirring plate 65 and the first stirring plate 62 is reduced. At this time, the stirring radius of the first stirring plate 62 and the second stirring plate 65 is reduced. Therefore, through the above, the present device can change the stirring radius of the broth according to the rotation cycle of the positioning column 61 to fully improve the efficiency and quality of mixing the broth.

[0067] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A food delivery robot with a heat preservation function, comprising an intelligent vehicle (1), a heating seat (2) being placed on the upper end surface of the intelligent vehicle (1), the inner cavity of the heating seat (2) being covered with a sandwich pot body (3), characterized in that: Also includes: a heat-insulating pot cover (4), the heat-insulating pot cover (4) being detachably mounted on the upper end of the sandwich pot body (3), the heat-insulating pot cover (4) being used to ensure the sealing of the internal space of the sandwich pot body (3); A driving mechanism (5), the driving mechanism (5) being arranged at the middle of the upper end surface of the heat-insulating pot cover (4), the driving mechanism (5) being used to provide power output on its own; The driving mechanism (5) comprises a pressure-changing disk (51) fixedly mounted at the middle of the upper end surface of the heat-insulating pot cover (4); a driving cavity (511) is provided in the middle of the inner cavity of the pressure-changing disk (51); heat transfer cavities (512) are provided on both sides of the inner cavity of the pressure-changing disk (51) located at the driving cavity (511); an air inlet pipe (52) is fixedly mounted on the front side of the side wall of the heat-insulating pot cover (4); the inner cavity of the air inlet pipe (52) is provided with a one-way air valve with an outlet toward the inner cavity of the heat transfer cavity (512); an air outlet pipe (53) is fixedly mounted on the rear side of the side wall of the heat-insulating pot cover (4); the inner cavity of the air outlet pipe (53) is provided with a one-way air valve with an outlet toward the outside; an air inlet pipe (531) is fixedly mounted on the front side of the side wall of the heat-insulating pot cover (4); the inner cavity of the air inlet pipe (531) is provided with a one-way air valve with an outlet toward the inner cavity of the heat transfer cavity (512); The sandwich pot body (3) is arranged as a double-layer structure, the sandwich inner cavity of the sandwich pot body (3) is fixedly installed with a heat preservation heat pipe (31), the heat preservation heat pipe (31) is arranged in a spiral shape, a connecting pipe (32) connected to the heat preservation heat pipe (31) is fixedly installed on the rear end surface of the sandwich pot body (3), the air outlet pipe (53) is detachably installed on the connecting pipe (32), a venting pipe (33) connected to the heat preservation heat pipe (31) is fixedly installed on the right side of the side wall of the sandwich pot body (3), the inner cavity of the venting pipe (33) is installed with an electromagnetic exhaust valve, the inner cavity side wall of the heat preservation pot cover (4) is fixedly installed with a temperature detector (41), and the upper end surface of the heat preservation pot cover (4) is fixedly installed with lifting handles (42) on both sides; A driving column (54) is rotatably mounted on the bottom surface of the inner cavity of the driving cavity (511) of the pressure-changing disk (51), a guide impeller (55) is fixedly mounted on the side wall of the driving column (54), a hexagonal column (56) is fixedly mounted on the lower end surface of the driving column (54), and the hexagonal column (56) is rotatably connected to the pressure-changing disk (51); a stirring mechanism (6), the stirring mechanism (6) being arranged in the inner cavity of the sandwich pot body (3), the stirring mechanism (6) being used to mix the soup in the sandwich pot body (3); An air replenishing mechanism (7), the air replenishing mechanism (7) being arranged above the heat-insulating pot cover (4), the air replenishing mechanism (7) being used to replenish air into the sandwich pot body (3); The air replenishing mechanism (7) comprises a piston cylinder (71) fixedly mounted at the middle of the upper end surface of the pressure-changing disk (51), and a piston disk (72) slidably mounted in the inner cavity of the piston cylinder (71); a piston rod (73) is fixedly mounted on the lower end surface of the piston disk (72); the piston rod (73) is hollow and connected to the pressure-changing disk (51); a U-shaped annular groove (731) is formed on the upper side wall of the piston rod (73); a limit block (732) is slidably mounted in the inner cavity of the U-shaped annular groove (731); and the limit block (732) is fixedly mounted on the inner side wall of the driving column (54); The piston disc (72) has a side wall provided with an air supply port (721), the inner cavity of the air supply port (721) is provided with a one-way air valve with an outlet toward the inner cavity of the piston rod (73), the piston rod (73) is connected to the hexagonal prism (56), the hexagonal prism (56) has a through hole (561), an air supply pipe (74) is fixedly mounted on the side wall of the piston cylinder (71), the inner cavity of the air supply pipe (74) is provided with a one-way air valve with an outlet toward the inner cavity of the piston cylinder (71), the air supply pipe (74) is bent downward, and a pressure relief valve (43) is provided on the front side of the side wall of the heat preservation pot cover (4); A water replenishing mechanism (8), the water replenishing mechanism (8) being arranged on the left and right sides of the upper end surface of the heat-insulating pot cover (4), the water replenishing mechanism (8) being used to replenish clean water into the sandwich pot body (3).

2. A food delivery robot with heat preservation function according to claim 1, characterized in that: The stirring mechanism (6) comprises a positioning column (61) rotatably mounted on the bottom of the inner cavity of the sandwich pot body (3); first stirring plates (62) are fixedly mounted on the left and right sides of the outer wall of the positioning column (61); fixing ears (63) are fixedly mounted on the upper and lower end surfaces of the first stirring plate (62); a rotating rod (64) is rotatably mounted between the upper and lower fixing ears (63); a second stirring plate (65) is fixedly mounted on the middle part of the outer wall of the rotating rod (64); and torsion springs (66) are wound around the upper and lower sides of the outer wall of the rotating rod (64).

3. The food delivery robot with heat preservation function according to claim 2, characterized in that: The two ends of the torsion spring (66) are respectively connected to the fixing ear (63) and the side wall of the second stirring plate (65); the upper end surface of the positioning column (61) is provided with a hexagonal groove (611); the size of the hexagonal groove (611) corresponds to that of the hexagonal prism (56); the side wall of the first stirring plate (62) is provided with a strip groove; and the side wall of the second stirring plate (65) is provided with a hole groove.

4. The food delivery robot with heat preservation function according to claim 2, characterized in that: The water replenishing mechanism (8) comprises a spring rod (81) fixedly mounted on the left and right sides of the upper end surface of the heat-insulating pot cover (4); a material bin (82) is fixedly mounted on the upper end surface of the spring rod (81); a drainage ball (83) is fixedly connected to the lower end surface of the material bin (82); the inner cavity of the drainage ball (83) is hollow; the drainage ball (83) is connected to the material bin (82); sliding grooves (44) are arranged on the left and right sides of the upper end surface of the heat-insulating pot cover (4) below the material bin (82); and oblique grooves (45) are arranged on the left and right sides of the sliding groove (44).

5. The food delivery robot with heat preservation function according to claim 4, characterized in that: The drainage ball (83) slides in the inner cavity of the sliding groove (44), and water outlet holes (831) are provided on the left and right side walls of the drainage ball (83). An extrusion column (84) is fixedly mounted on the upper part of the side wall of the positioning column (61), and the end surface of the extrusion column (84) is arranged in an arc shape.

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