Dining trolley capable of automatically adjusting balance

Abstract

The utility model discloses an automatic balance adjusting serving trolley which comprises a base, a first side plate, a second side plate, a connecting rod, a rotating shaft, a meal plate frame, a transmission assembly and a driving part, and the base is provided with a first seat face and a second seat face which are oppositely arranged in the height direction of the base; the first side plate is fixed on one side of the first seat surface; the second side plate is fixed on one side of the first seat surface, and a through groove is formed in one side of the second side plate; the connecting rod is fixed between the first side plate and the second side plate; the rotating shaft is rotationally connected with the connecting rod; the dining plate frame is connected to the periphery of the rotating shaft in a sleeving mode and located between the first side plate and the second side plate. A part of the transmission assembly penetrates through the through groove and is located on the side, away from the first side plate, of the second side plate. The driving part is connected with the part, located on the side, away from the first side plate, of the second side plate, of the transmission assembly. According to the dinner plate, when the serving trolley passes through the slope, food in the dinner plate is prevented from being scattered.

Description

Technical Field

[0001] The present application relates to the technical field of food delivery vehicles, and in particular to an automatically adjustable balancing food delivery vehicle. Background Art

[0002] A food delivery cart is a transport device used for transporting food within a restaurant. It can deliver food in batches, thereby improving the restaurant's serving efficiency.

[0003] However, the plates on the dining cart are placed directly on the dining cart. When the dining cart passes through the sloping ground of the restaurant, the plates will tilt synchronously with the dining cart, which may easily cause the food in the plates to spill. Utility Model Content

[0004] The main purpose of the present application is to provide an automatically adjustable balancing food delivery vehicle, which aims to solve the problem that when the food delivery vehicle passes through the sloping ground of the restaurant, the food plates will tilt synchronously with the food delivery vehicle, which may easily cause the food in the food plates to spill.

[0005] To achieve the above-mentioned purpose, the present application provides an automatically adjustable balanced meal delivery vehicle, which includes a base, a first side plate, a second side plate, a connecting rod, a rotating shaft, a meal plate rack, a transmission assembly and a driving member, wherein the base has a first seat surface and a second seat surface that are arranged opposite to each other in its own height direction; the first side plate is fixed to a side of the first seat surface that is away from the second seat surface; the second side plate is fixed to a side of the first seat surface that is away from the second seat surface, the second side plate and the first side plate are arranged opposite to each other in the length direction of the base, and a through groove is provided on a side of the second side plate that faces the first side plate; the connecting rod extends along the length direction of the base, and the connecting rod is fixed to the first side plate and the second side plate; the axial direction of the rotating shaft is the same as the width direction of the base, the rotating shaft is rotatably connected to the connecting rod, the rotating shaft is located between the first side plate and the second side plate, and the rotating shaft has the freedom to rotate around its own axial direction; the dining plate rack is sleeved on the outer periphery of the rotating shaft, and the dining plate rack is located between the first side plate and the second side plate; part of the structure of the transmission assembly passes through the through groove, and the transmission assembly is connected to the dining plate rack, and the transmission assembly drives the dining plate rack to rotate around the axial direction of the rotating shaft in response to the driving force; the driving member is arranged on the side of the second side plate away from the first side plate, the driving member is connected to the part of the transmission assembly located on the side of the second side plate away from the first side plate, and the driving member provides driving force for the transmission assembly.

[0006] Optionally, the dining plate rack includes a first dining plate, a connecting plate and a second dining plate, wherein the first dining plate is sleeved on the outer circumference of the rotating shaft; the connecting plate is fixed to one end of the first dining plate close to the second side plate; there is at least one second dining plate, the second dining plate is fixed to a side of the connecting plate facing the first dining plate, the second dining plate is parallel to the first dining plate, and the second dining plate and the first dining plate are spaced apart in the height direction of the base.

[0007] Optionally, the transmission assembly includes an arc-shaped rack and a gear, wherein the arc-shaped rack is fixed to a side of the connecting plate away from the first dining board, the arc-shaped rack portion of the structure passes through the through groove, and the center of the arc-shaped rack is located in the axial direction of the rotating shaft; the gear is arranged on a side of the second side plate away from the first side plate, the gear is connected to the driving member, and the gear is meshed with the arc-shaped rack; wherein the gear rotates around its own axis in response to the driving force, and drives the arc-shaped rack, the connecting plate, the first dining board and the second dining board to rotate around the axial direction of the rotating shaft.

[0008] Optionally, the driving member is a motor, and the gear is sleeved on the outer periphery of the output shaft of the motor; the automatically adjusting balancing food delivery vehicle also includes a battery, which is fixed to the side of the second side plate away from the first side plate, and the battery is electrically connected to the motor.

[0009] Optionally, a cavity is provided in the first dining board; the automatically adjusting balancing food delivery vehicle further comprises a slider, a forward button and a reverse button, wherein the slider is located in the cavity, the slider is slidably connected to the first dining board, and the slider has the freedom to slide along the length direction of the first dining board; the forward button is provided inside the cavity, and the forward button is communicatively connected to the motor; the reverse button is provided inside the cavity, and the reverse button is communicatively connected to the motor; wherein the forward button and the reverse button are respectively provided on opposite sides of the cavity in the length direction of the first dining board.

[0010] Optionally, the automatically-adjusting balancing meal delivery vehicle further includes two springs, both of which extend along the width direction of the first meal placement board, and both ends of the springs are respectively connected to the slider and the first meal placement board, and the two springs are respectively located on both sides of the slider.

[0011] Optionally, a first dining plate is provided with a plurality of grooves on a side away from the base, and / or a second dining plate is provided with a plurality of grooves on a side away from the base.

[0012] Optionally, the side of the connecting plate facing the second side plate is an arc surface structure, and the arc surface structure fits with the arc-shaped rack; the side of the second side plate facing the connecting plate is provided with an arc surface groove corresponding to the arc surface structure, and the arc surface structure fits with the arc surface groove; wherein, the through groove is located at the arc surface structure, and the axial direction of the rotating shaft is parallel to the arc surface structure.

[0013] Optionally, there are two connecting plates, which are relatively arranged at one end of the first dining board close to the first side plate and the second side plate; a circular arc groove is provided on the side of the first side plate facing the connecting plate, and the circular arc structure fits with the adjacent circular arc groove.

[0014] Optionally, a plurality of universal wheels are fixed to a side of the second seat surface facing away from the first seat surface, and a push handle is provided on a side of the second side plate facing away from the first side plate.

[0015] An automatic adjusting and balancing meal delivery vehicle proposed in an embodiment of the present application places meal plates on a meal plate rack. When the meal delivery vehicle passes over a slope, the base gradually tilts until it is parallel to the slope surface. The driving member drives the meal plate rack to rotate around the axial direction of the rotating shaft through the transmission assembly, so that the meal plate rack remains horizontal during the gradual tilting of the base, thereby preventing food in the meal plate from spilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of an automatically adjustable balancing food delivery vehicle provided in an embodiment of the present application;

[0017] Figure 2 for Figure 1 A structural schematic diagram of another perspective of the embodiment;

[0018] Figure 3 for Figure 1 A schematic diagram of the structural disassembly of the embodiment in FIG.

[0019] Figure 4 A top view of a first meal placement plate of an automatically adjustable balancing meal delivery vehicle provided in an embodiment of the present application;

[0020] Figure 5 A schematic diagram of the structure of the second side panel of an automatic adjustment and balancing food delivery vehicle provided in an embodiment of the present application;

[0021] Figure 6 for Figure 5 A structural schematic diagram of another perspective of the embodiment;

[0022] Figure 7 A front view of an automatically adjustable balancing meal delivery vehicle provided in an embodiment of the present application when working on flat ground;

[0023] Figure 8 A front view of an automatically adjustable balancing food delivery vehicle provided in an embodiment of the present application while operating on a slope.

[0024] In the figure: 1. base; 11. universal wheel; 2. first side plate; 3. second side plate; 31. through slot; 32. battery; 33. push handle; 4. connecting rod; 5. rotating shaft; 6. plate rack; 61. first plate; 62. connecting plate; 63. second plate; 7. transmission assembly; 71. arc-shaped rack; 72. gear; 8. driving member; 91. slider; 92. forward button; 93. reverse button; 94. spring.

[0025] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] refer to Figure 1 , Figure 3 , Figure 7 and Figure 8 It should be understood that Figure 3 The connections between the components should be like Figure 1As compact as in, it is disassembled and displayed here for easy understanding. The embodiment of the present application provides an automatically adjustable balanced meal delivery vehicle, which may include a base 1, a first side panel 2, a second side panel 3, a connecting rod 4, a rotating shaft 5, a meal plate rack 6, a transmission assembly 7 and a driving member 8, wherein the base 1 has a first seat surface and a second seat surface that are arranged opposite to each other in its own height direction; the first side panel 2 is fixed to a side of the first seat surface that is away from the second seat surface; the second side panel 3 is fixed to a side of the first seat surface that is away from the second seat surface, the second side panel 3 and the first side panel 2 are arranged opposite to each other in the length direction of the base 1, and a through groove 31 is arranged on the side of the second side panel 3 that faces the first side panel 2; the connecting rod 4 extends along the length direction of the base 1, and the connecting rod 4 is fixed to Between the first side plate 2 and the second side plate 3; the axial direction of the rotating shaft 5 is the same as the width direction of the base 1, the rotating shaft 5 is rotatably connected with the connecting rod 4, the rotating shaft 5 is located between the first side plate 2 and the second side plate 3, and the rotating shaft 5 has the freedom to rotate around its own axial direction; the dining plate rack 6 is sleeved on the outer periphery of the rotating shaft 5, and the dining plate rack 6 is located between the first side plate 2 and the second side plate 3; part of the structure of the transmission assembly 7 passes through the through groove 31, and the transmission assembly 7 is connected to the dining plate rack 6, and the transmission assembly 7 drives the dining plate rack 6 to rotate around the axial direction of the rotating shaft 5 in response to the driving force; the driving member 8 is arranged on the side of the second side plate 3 away from the first side plate 2, and the driving member 8 is connected to the part of the transmission assembly 7 located on the side of the second side plate 3 away from the first side plate 2, and the driving member 8 provides driving force for the transmission assembly 7.

[0031] An automatic adjusting and balancing meal delivery vehicle proposed in an embodiment of the present application places meal plates on a meal plate rack 6. When the meal delivery vehicle passes over a slope, the base 1 gradually tilts until it is parallel to the slope surface. The driving member 8 drives the meal plate rack 6 to rotate around the axial direction of the rotating shaft 5 through the transmission assembly 7, so that the meal plate rack 6 remains horizontal during the gradual tilting of the base 1 to prevent food in the meal plate from spilling.

[0032] It should be noted that if Figure 8 As shown, the forward direction of the food delivery vehicle should be the length direction of the base 1. When the food delivery vehicle tilts on the slope, the base 1 remains parallel to its own length direction. It can be understood that the tilting of the food delivery vehicle is equivalent to the rotation of the base 1 around its own width direction.

[0033] The time when the driving member 8 works can be manually controlled. For example, when the staff pushes the dining cart over a slope, the staff can control the driving member 8 to work so that the dining plate rack 6 remains horizontal.

[0034] It should be understood that slopes can be long or short, e.g. Figure 8As shown, when the length of the slope is greater than the length of the base 1, the base 1 will be in a state parallel to the slope surface when passing through the slope. When the length of the slope is less than the length of the base 1, the base 1 will also move to be parallel to the slope surface when passing through the slope. That is, the base 1 in the above content gradually tilts until it is parallel to the slope surface, which should be understood in combination with specific circumstances.

[0035] Furthermore, the connecting rod 4 has two pieces, and the rotating shaft 5 is arranged between the two connecting rods 4, that is, the two connecting rods 4 support the two ends of the rotating shaft 5 respectively.

[0036] refer to Figure 3 In an exemplary embodiment, the plate rack 6 may include a first plate 61, a connecting plate 62, and a second plate 63, wherein the first plate 61 is sleeved on the outer periphery of the rotating shaft 5; the connecting plate 62 is fixed to one end of the first plate 61 close to the second side plate 3; there is at least one second plate 63, the second plate 63 is fixed to the side of the connecting plate 62 facing the first plate 61, the second plate 63 is parallel to the first plate 61, and the second plate 63 and the first plate 61 are spaced apart in the height direction of the base 1. A plurality of grooves are provided on the side of the first plate 61 away from the base 1, and / or a plurality of grooves are provided on the side of the second plate 63 away from the base 1.

[0037] In the embodiment of the present application, the dinner plates can be placed on the first dinner board 61 and the second dinner board 63. There are two second dinner boards 63, and the two second dinner boards 63 are symmetrically arranged on both sides of the first dinner board 61. The first dinner board 61 and the second dinner board 63 are connected by a connecting plate 62.

[0038] It should be noted that it is best if the number of second dining boards 63 is an even number, so that the same number of second dining boards 63 can be symmetrically arranged on both sides of the first dining board 61. Then, when the entire dining board rack 6 rotates around the rotating shaft 5, the rotation axis of the dining board rack 6 can always be maintained at the true center position of the dining board rack 6, that is, the center position of the first dining board 61, so that the rotation of the dining board rack 6 is more stable.

[0039] Furthermore, grooves are provided on one or both of the first meal plate 61 and the second meal plate 63, and the meal plates are placed in the grooves. Then, when the meal delivery vehicle moves, the meal plates will be more stable and food will not be spilled.

[0040] refer to Figure 2 and Figure 3In an exemplary embodiment, the transmission assembly 7 may include an arc-shaped rack 71 and a gear 72, wherein the arc-shaped rack 71 is fixed to the side of the connecting plate 62 away from the first dining plate 61, a part of the arc-shaped rack 71 passes through the through groove 31, and the center of the arc-shaped rack 71 is located in the axial direction of the rotating shaft 5; the gear 72 is arranged on the side of the second side plate 3 away from the first side plate 2, the gear 72 is connected to the driving member 8, and the gear 72 is meshed with the arc-shaped rack 71; wherein the gear 72 rotates around its own axis in response to the driving force, and drives the arc-shaped rack 71, the connecting plate 62, the first dining plate 61 and the second dining plate 63 to rotate around the axial direction of the rotating shaft 5; the driving member 8 is a motor, and the gear 72 is sleeved on the outer periphery of the output shaft of the motor; the automatic adjustment and balancing food delivery vehicle may also include a battery 32, which is fixed to the side of the second side plate 3 away from the first side plate 2, and the battery 32 is electrically connected to the motor.

[0041] Specifically, the motor drives the gear 72 to rotate axially around the output shaft of the motor. The axial direction of the output shaft of the motor can be the same as the width direction of the base 1. The gear 72 drives the arc-shaped rack 71 to rotate axially around the rotating shaft 5, so that the first dining plate 61 and the second dining plate 63 are always kept horizontal to prevent food from spilling.

[0042] It should be noted that only when the center of the arc-shaped rack 71 is located in the axial direction of the rotating shaft 5 , the arc-shaped gear 72 can drive the first dining plate 61 and the second dining plate 63 to rotate around the axial direction of the rotating shaft 5 through the arc-shaped rack 71 .

[0043] Furthermore, the rotation direction of the first meal placing plate 61 and the second meal placing plate 63 around the axial direction of the rotating shaft 5 can be changed by controlling the rotation direction of the motor, so that the meal delivery vehicle can adapt to slopes with different inclination directions.

[0044] The slopes with different inclination directions refer to the slopes from the low plane to the high plane, and the slopes from the high plane to the low plane.

[0045] refer to Figure 4 and Figure 8 In an exemplary embodiment, a cavity is provided in the first dining plate 61; the automatically adjusting balanced meal delivery vehicle may further include a slider 91, a forward button 92 and a reverse button 93, wherein the slider 91 is located in the cavity, the slider 91 is slidably connected to the first dining plate 61, and the slider 91 has the freedom to slide along the length direction of the first dining plate 61; the forward button 92 is provided inside the cavity, and the forward button 92 is communicatively connected to the motor; the reverse button 93 is provided inside the cavity, and the reverse button 93 is communicatively connected to the motor; wherein the forward button 92 and the reverse button 93 are respectively provided on opposite sides of the cavity in the length direction of the first dining plate 61.

[0046] Specifically, Figure 8As shown in the figure, when the meal delivery vehicle enters the slope from the high plane to the low plane, the first meal placing plate 61 will tilt, and the tilt angle will gradually increase. When the tilt just occurs, the slider 91 will slide along the length direction of the first meal placing plate 61 due to the action of gravity, thereby squeezing the forward button 92, controlling the motor to rotate forward, and adjusting the tilt angle of the first meal placing plate 61 to keep the first meal placing plate 61 horizontal. When the first meal placing plate 61 is in a horizontal state, the slider 91 no longer squeezes the forward button 92 due to gravity, and the motor is turned off, thus ensuring that the first meal placing plate 61 remains horizontal. When the flat surface leads to a slope of a lower surface, the first dining board 61 will tilt. Here, the tilt direction of the first dining board 61 is opposite to the tilt direction of the first dining board 61 when the food delivery vehicle enters the slope. The slider 91 slides along the length direction of the first dining board 61 due to gravity, thereby squeezing the reverse button 93, controlling the motor to reverse, and adjusting the tilt angle of the first dining board 61 to keep the first dining board 61 horizontal. When the first dining board 61 is in a horizontal state, the slider 91 no longer squeezes the reverse button 93 due to gravity, and the motor is turned off, thereby ensuring that the first dining board 61 remains horizontal. When the food delivery vehicle enters or leaves a slope from a lower surface to a higher surface, the working process is the same as the above-mentioned principle and will not be explained here. In this way, the food delivery vehicle can automatically adjust the balance when passing through the slope to ensure that the food does not slide off.

[0047] refer to Figure 4 In an exemplary embodiment, the automatically balancing meal delivery vehicle may further include two springs 94 , both of which extend along the width direction of the first meal placement plate 61 , and both ends of the spring 94 are respectively connected to the slider 91 and the first meal placement plate 61 , and the two springs 94 are respectively located on both sides of the slider 91 .

[0048] Specifically, when the first dining plate 61 changes from tilted to horizontal, the two springs 94 pull the slider 91 back to its original position, ensuring that the slider 91 no longer squeezes the forward button 92 or the reverse button 93, and the motor is turned off in time to prevent the first dining plate 61 from rotating too much and causing the plate to slip.

[0049] Furthermore, in combination with the above-mentioned provision of grooves on the first dining plate 61 and the second dining plate 63 , when the first dining plate 61 and the second dining plate 63 are just slightly tilted, the dining plates will not slide off.

[0050] refer to Figure 3 , Figure 5 and Figure 6In an exemplary embodiment, the side of the connecting plate 62 facing the second side plate 3 is an arc surface structure, and the arc surface structure fits with the arc-shaped rack 71; the side of the second side plate 3 facing the connecting plate 62 is provided with an arc surface groove corresponding to the arc surface structure, and the arc surface structure fits with the arc surface groove; wherein the through groove 31 is located at the arc surface structure, and the axial direction of the rotating shaft 5 is parallel to the arc surface structure; there are two connecting plates 62, and the two connecting plates 62 are relatively arranged at one end of the first dining plate 61 close to the first side plate 2 and the second side plate 3; the side of the first side plate 2 facing the connecting plate 62 is provided with an arc surface groove, and the arc surface structure fits with the adjacent arc surface groove.

[0051] Specifically, the arc surface structures on each connecting plate 62 cooperate with the corresponding arc surface grooves and cooperate with the rotating shaft 5 to bear the load together. When a large amount of food is placed on the first dining plate 61 and the second dining plate 63, the rotating shaft 5 bears a large load and is damaged.

[0052] It should be noted that the arc surface structure on the connecting plate 62 close to the second side plate 3 is fitted with the arc-shaped rack 71, and the arc surface structure is fitted with the corresponding arc surface groove, and the axial direction of the rotating shaft 5 is parallel to the arc surface structure. Then, when the first dining plate 61 and the second dining plate 63 rotate, the connecting plate 62 will also rotate around the axial direction of the rotating shaft 5, that is, the arc surface structure rotates around the axial direction of the rotating shaft 5, and the arc surface groove will not affect the rotation of the arc surface structure. When the food delivery cart does not pass through the slope, the arc surface structure and the arc surface groove share the load of the rotating shaft 5; when the food delivery cart passes through the slope, the arc surface groove will not affect the rotation of the arc surface structure.

[0053] refer to Figure 1 In an exemplary embodiment, a plurality of universal wheels 11 are fixed to a side of the second seat surface facing away from the first seat surface, and a push handle 33 is provided on a side of the second side plate 3 facing away from the first side plate 2 .

[0054] Specifically, there can be four universal wheels 11, and the four universal wheels 11 are all arranged on the side of the second seat surface away from the first seat surface, so as to ensure that the food delivery cart can move in all directions. When working, the staff can hold the handle 33 to push the food delivery cart, and use the universal wheels 11 to make the food delivery cart move in all directions.

[0055] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An automatically balancing food delivery vehicle, characterized in that: include: The base (1) has a first seat surface and a second seat surface which are arranged opposite to each other in the height direction of the base; A first side plate (2) fixed to a side of the first seat surface facing away from the second seat surface; a second side plate (3) fixed to a side of the first seat surface facing away from the second seat surface, the second side plate (3) and the first side plate (2) being arranged opposite to each other in the length direction of the base (1), and a through groove (31) being arranged on a side of the second side plate (3) facing the first side plate (2); A connecting rod (4) extending along the length direction of the base (1), and the connecting rod (4) is fixed between the first side plate (2) and the second side plate (3); A rotating shaft (5), the axial direction of which is the same as the width direction of the base (1), the rotating shaft (5) is rotatably connected to the connecting rod (4), the rotating shaft (5) is located between the first side plate (2) and the second side plate (3), and the rotating shaft (5) has the freedom to rotate around its own axial direction; a dining plate rack (6) sleeved on the outer circumference of the rotating shaft (5), wherein the dining plate rack (6) is located between the first side plate (2) and the second side plate (3); a transmission assembly (7), part of which passes through the through slot (31), and the transmission assembly (7) is connected to the dining plate rack (6), and the transmission assembly (7) drives the dining plate rack (6) to rotate axially around the rotating shaft (5) in response to a driving force; A driving member (8) is arranged on a side of the second side plate (3) facing away from the first side plate (2), the driving member (8) is connected to a portion of the transmission assembly (7) located on a side of the second side plate (3) facing away from the first side plate (2), and the driving member (8) provides the driving force for the transmission assembly (7).

2. The automatic balance-adjusting meal delivery vehicle according to claim 1, characterized in that: The dining plate rack (6) comprises: A first dining plate (61) sleeved on the outer circumference of the rotating shaft (5); A connecting plate (62) fixed to one end of the first dining plate (61) close to the second side plate (3); There is at least one second dining board (63), the second dining board (63) is fixed to a side of the connecting plate (62) facing the first dining board (61), the second dining board (63) is parallel to the first dining board (61), and the second dining board (63) and the first dining board (61) are spaced apart in a height direction of the base (1).

3. The automatic balance-adjusting food delivery vehicle according to claim 2, characterized in that: The transmission assembly (7) comprises: An arc-shaped rack (71) is fixed to a side of the connecting plate (62) away from the first dining plate (61), a portion of the arc-shaped rack (71) passes through the through slot (31), and the center of the arc-shaped rack (71) is located in the axial direction of the rotating shaft (5); a gear (72) disposed on a side of the second side plate (3) facing away from the first side plate (2), the gear (72) being connected to the driving member (8), and the gear (72) being meshed with the arc-shaped rack (71); The gear (72) rotates around its own axis in response to the driving force, and drives the arc-shaped rack (71), the connecting plate (62), the first dining plate (61) and the second dining plate (63) to rotate around the axis of the rotating shaft (5).

4. The automatic balance-adjusting meal delivery vehicle according to claim 3, characterized in that: The driving member (8) is a motor, and the gear (72) is sleeved on the outer periphery of the output shaft of the motor; the automatic adjustment balance food delivery vehicle also includes: A storage battery (32) is fixed to a side of the second side plate (3) facing away from the first side plate (2), and the storage battery (32) is electrically connected to the motor.

5. The automatic balance-adjusting meal delivery vehicle according to claim 4, characterized in that: The first meal placement plate (61) is provided with a cavity; the automatic adjustment balance meal delivery vehicle further comprises: A slider (91) is located in the cavity, the slider (91) is slidably connected to the first dining board (61), and the slider (91) has the freedom to slide along the length direction of the first dining board (61); A forward button (92) is disposed inside the cavity, and the forward button (92) is communicatively connected to the motor; A reversing button (93) is disposed inside the cavity, and the reversing button (93) is communicatively connected to the motor; Wherein, the forward button (92) and the reverse button (93) are respectively arranged on two opposite sides of the cavity in the length direction of the first dining plate (61).

6. The automatic balance-adjusting meal delivery vehicle according to claim 5, characterized in that: The automatic balance adjustment meal delivery vehicle further comprises: The two springs (94) extend along the width direction of the first dining plate (61), and the two ends of the springs (94) are respectively connected to the slider (91) and the first dining plate (61), and the two springs (94) are respectively located on both sides of the slider (91).

7. The automatic balance-adjusting meal delivery vehicle according to claim 5, characterized in that: A plurality of grooves are provided on a side of the first dining plate (61) facing away from the base (1), and / or a plurality of grooves are provided on a side of the second dining plate (63) facing away from the base (1).

8. The automatic balance-adjusting meal delivery vehicle according to claim 3, characterized in that: The side of the connecting plate (62) facing the second side plate (3) is an arc surface structure, and the arc surface structure fits the arc-shaped rack (71); A circular arc surface groove corresponding to the circular arc surface structure is provided on a side of the second side plate (3) facing the connecting plate (62), and the circular arc surface structure fits in the circular arc surface groove; Wherein, the through groove (31) is located at the arc surface structure, and the axial direction of the rotating shaft (5) is parallel to the arc surface structure.

9. The automatic balance-adjusting meal delivery vehicle according to claim 8, characterized in that: There are two connecting plates (62), and the two connecting plates (62) are arranged opposite to each other at one end of the first dining plate (61) close to the first side plate (2) and the second side plate (3); A circular arc groove is provided on the side of the first side plate (2) facing the connecting plate (62), and the circular arc structure fits with the adjacent circular arc groove.

10. The automatic balance-adjusting food delivery vehicle according to claim 1, characterized in that: A plurality of universal wheels (11) are fixed to the side of the second seat surface facing away from the first seat surface, and a push handle (33) is provided to the side of the second side plate (3) facing away from the first side plate (2).

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