A suspended conveyor device for a smart restaurant and its working method

Abstract

This invention discloses a suspended conveying device for intelligent restaurants and its working method, relating to the technical field of suspended conveying devices. It includes a conveying component for driving the suspended conveying device, a synchronization component for conveying below the conveying component, and a hanging box component for placing dishes suspended between the synchronization components. When a fourth motor drives a lead screw to rotate, a threaded ring moves along the lead screw axis, driving multiple grippers to simultaneously close or open via a connecting rod, achieving circumferential clamping of the dish's edge. Simultaneously, a support plate supports the bottom edge of the dish from the bottom, forming a double fixation from the side and bottom, thus firmly locking the dish onto the lower fixed plate. Even if the conveying device encounters emergency obstacle avoidance, track switching, or sudden stop during operation, the dish will not experience relative displacement or tipping within the storage box due to inertia, completely solving the problem of soup spillage caused by the lack of limiting structures in traditional conveying boxes.

Description

Technical Field

[0001] This invention relates to the field of suspended conveyor technology, and specifically to a suspended conveyor for a smart restaurant and its working method. Background Technology

[0002] With the rapid development of smart restaurants, unmanned restaurants, and intelligent delivery systems, more and more catering establishments are adopting suspended conveyor systems to automate the delivery of food. These systems typically use suspended tracks, conveyor carts, or conveyor boxes to automatically transport food prepared in the kitchen to designated pick-up locations, thereby reducing the workload of service personnel and improving restaurant operational efficiency.

[0003] Existing restaurant overhead conveyor systems typically include a suspension track, a drive mechanism, a conveyor trolley, and a conveyor box for carrying the food. During operation, kitchen staff place the prepared food inside the conveyor box. The drive mechanism then moves the conveyor trolley along the suspension track, transporting the food to a pre-set pick-up location. Once the conveyor reaches the target location, the conveyor box stops moving, and a server opens the box or removes the food directly from it before serving it to the customer's table.

[0004] In summary, most existing conveyor boxes only have a platform for holding the dishes, lacking a stable structure to clamp and limit the dishes. Therefore, when the conveyor encounters emergency obstacle avoidance, track switching, or emergency stop during operation, the dishes are prone to relative displacement inside the conveyor box and wobbling due to inertia, which can easily cause spillage. At the same time, since some dishes are still at a high temperature after cooking, service personnel may burn their hands due to the overheated plates during handling. When manually picking up food, it is inevitable to touch the edge of the plate, and there is even a possibility of accidentally touching the food, which is not conducive to improving the hygiene level and automation of the catering service process. Summary of the Invention

[0005] This invention provides a suspended conveyor device for intelligent restaurants and its working method, which can solve the problem in the prior art that when the conveyor device encounters emergency obstacle avoidance, track switching or emergency stop during operation, the dishes are prone to relative displacement inside the conveyor box and shake under inertia, which can easily cause soup to spill.

[0006] The objective of this invention can be achieved through the following technical solutions: A suspended conveying device for a smart restaurant includes a conveying component for driving the suspended conveying device, a synchronization component for conveying is disposed below the conveying component, and a hanging box component for placing food is suspended between the synchronization components. The conveying assembly includes a support frame, and a first gear for driving is symmetrically arranged at one end of the support frame. A first chain is meshed on the surface of the first gear. The synchronization component includes a lower support rod, and the two ends of the lower support rod are symmetrically provided with second gears for synchronous rotation, and the surfaces of the second gears are meshed with a second chain; The suspension box assembly includes a storage box, a shock-absorbing rod is slidably connected to the top of the inner cavity of the storage box, a lead screw is rotatably connected to the bottom of the shock-absorbing rod, a threaded ring is sleeved on the surface of the lead screw, a lower fixing plate is provided at the bottom of the lead screw, and grippers are movably arranged around the lower fixing plate.

[0007] Preferably, a first motor is provided on the top of the first gear, and connecting rods for connecting to the top of the support frame are provided at both ends of the first motor. An annular groove is provided parallel above the first chain, and lifting rings are engaged on both sides of the annular groove.

[0008] Preferably, the top of the lower support rod is provided with a hanger for connecting to the support frame, and the bottom of the second gear is provided with a third motor for driving.

[0009] Preferably, the third motor is fixedly connected to the lower support rod, and the two ends of the lower support rod are symmetrically provided with limiting grooves for supporting the second chain.

[0010] Preferably, a second motor is provided at the other end of the support frame, a connecting plate is provided at the bottom of the second motor, and a sliding rod is provided at one end of the connecting plate.

[0011] Preferably, a stop bar is provided at one end of the slide bar, a baffle is provided on the side of the support frame, a limiting plate is provided at the bottom of the baffle, and the first chain is clamped between the limiting plate and the stop bar.

[0012] Preferably, the bottom of the lifting ring is provided with a connecting shaft, the middle part of the lifting ring is engaged with the first chain, the connecting shaft is fixedly connected to the top of the storage box, the top of the storage box is provided with a sliding groove, and the inner side of the sliding groove is symmetrically provided with side sliding grooves.

[0013] Preferably, the top two ends of the shock absorber are symmetrically provided with sliders for sliding connection inside the side groove, and the bottom of the shock absorber is provided with a fourth motor for driving the lead screw to rotate.

[0014] Preferably, the storage box has a folding curtain at the opening, the threaded ring has connecting rods around it for connecting to the gripper, the gripper has a support plate at the bottom, and the storage box has lower fixing blocks symmetrically arranged at the bottom for engaging with the second chain.

[0015] A method for operating a suspended conveyor device for a smart restaurant includes the following steps: S1. When the conveying device is in working condition, the first motor in the conveying assembly is started. The output shaft of the first motor drives the first gear to rotate. The first gear drives the first chain to circulate along the extension direction of the annular groove through gear meshing. S2. The third motor in the synchronization component starts synchronously. The output shaft of the third motor drives the second gear to rotate. The second gear drives the second chain to circulate along the extension direction of the limiting groove through gear meshing. The first chain and the second chain move in the same direction and at the same speed, and the two keep running synchronously. S3. When placing the food, the fourth motor starts and drives the lead screw to rotate in the opposite direction. The threaded ring moves upward along the lead screw and drives the gripper to retract inward through the connecting rod, so that the gripper holds the edge of the plate from all sides. At the same time, the tray supports the bottom edge of the plate from below. S4. When the dishes are delivered, the first chain and the second chain move synchronously, and the hanging box assembly moves forward along the conveying path with the movement of the chain, transporting the dishes placed inside the storage box from the kitchen area to the designated pick-up location. S5. After the conveying device transports the hanging box assembly to the designated food collection position, open the folding curtain, hold the top of the shock-absorbing rod and lift the plate holding the food out as a whole. The fourth motor rotates in the forward direction, causing the threaded ring to move downward and the gripper to open outward, releasing the clamping and fixing of the food plate, and the food plate can be removed from the lower fixed plate.

[0016] The present invention provides a suspended conveying device for intelligent restaurants and its working method, which, compared with the prior art, has, but is not limited to, the following beneficial effects: 1. When the fourth motor drives the lead screw to rotate, the threaded ring moves along the lead screw axis, and through the connecting rod, multiple grippers simultaneously close or open, realizing circumferential clamping of the edge of the dish. At the same time, the support plate supports the bottom edge of the dish from the bottom, forming a double fixation from the side and bottom, thereby firmly locking the dish on the lower fixed plate. Even if the conveying device encounters emergency obstacle avoidance, track switching or sudden stop during operation, the dish will not undergo relative displacement or overturning in the storage box due to inertia, completely solving the problem of soup spillage caused by the lack of limiting structure in traditional conveying boxes.

[0017] 2. This invention employs a synchronous driving method between the first and second chains. The top of the suspension box assembly is connected to the first chain via a hanging ring, and the bottom is connected to the second chain via a lower fixing block. This ensures that the storage box remains vertical during operation, preventing the box from swinging back and forth or tilting. It also ensures that the clamping mechanism always applies a stable clamping force to the food tray without requiring manual intervention. During the food retrieval process, the operator only needs to control the fourth motor to rotate forward, causing the threaded ring to move down and the gripper to open, making it easy to remove the food tray. The entire process does not require direct contact with the edge of the tray or the surface of the food, effectively avoiding the risk of burns caused by the high temperature of the tray after the food is cooked, and ensuring the safety of the operator.

[0018] 3. This invention reduces the contact between human fingers and tableware and food, lowers the possibility of cross-contamination, and meets the high hygiene standards required for smart restaurants and unmanned restaurants. At the same time, the clamping and releasing actions can be automatically controlled by motors, which facilitates linkage with the restaurant management system to realize fully automated delivery of dishes from the kitchen to the pick-up point, significantly reducing the workload of service personnel and improving the restaurant's operational efficiency and intelligence level. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the conveying component structure of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the conveying component of the present invention; Figure 4 yes Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 This is a schematic diagram of the suspension box assembly structure of the present invention; Figure 6 This is a cross-sectional view of the overall structure of the suspension box assembly of the present invention; Figure 7 This is a flowchart of the working method of the present invention.

[0021] In the diagram: 1. Conveying assembly; 2. Synchronization assembly; 3. Suspension box assembly; 11. Support frame; 13. First motor; 14. Connecting rod; 15. First gear; 16. Hanging rod; 17. Second motor; 18. Annular groove; 19. First chain; 110. Baffle; 111. Limiting plate; 112. Connecting plate; 113. Stop bar; 114. Slide rod; 21. Lower support rod; 22. Second gear; 23. Second chain; 24. Limiting groove; 25. Third motor; 31. Storage box; 310. Slide groove; 311. Side slide groove; 312. Lower fixing block; 32. Connecting shaft; 33. Lifting ring; 34. Folding curtain; 35. Shock absorber rod; 351. Slider; 36. Fourth motor; 37. Lead screw; 370. Lower fixing plate; 38. Threaded ring; 380. Connecting rod; 39. Grip clamp; 390. Support plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0023] like Figure 1-7 As shown, a hanging conveyor device for a smart restaurant includes a conveying component 1 for driving the hanging conveyor device, a synchronization component 2 for conveying is arranged below the conveying component 1, and a hanging box component 3 for placing dishes is suspended between the synchronization components 2. The conveying assembly 1 includes a support frame 11. One end of the support frame 11 is symmetrically provided with a first gear 15 for driving. A first chain 19 meshes with the surface of the first gear 15. The first chain 19 is wound between the two first gears 15 to form a closed-loop transmission circuit. The first chain 19 is an annular conveying chain with several chain links evenly distributed on its surface for meshing with the teeth of the first gear 15. The two ends of the first motor 13 are provided with connecting rods 14 for connecting to the top of the support frame 11. The connecting rods 14 have an L-shaped structure. One end of the connecting rod is fixedly connected to both sides of the housing of the first motor 13 by bolts, and the other end is fixedly connected to the top end face of the support frame 11 by bolts, thereby firmly fixing the first motor 13 to the support frame 11 and preventing the motor from shaking during operation. An annular groove 18 is fixedly installed at the bottom of the support frame 11 and extends along the length of the support frame 11. The cross-section of the annular groove 18 is C-shaped and its opening is downward, which is used to provide sliding guidance for the suspension box assembly 3. The synchronization component 2 includes a lower support rod 21, and two ends of the lower support rod 21 are symmetrically provided with second gears 22 for synchronous rotation, and the surfaces of the second gears 22 are meshed with a second chain 23; The suspension box assembly 3 includes a storage box 31. A shock-absorbing rod 35 is slidably connected to the top of the inner cavity of the storage box 31. A lead screw 37 is rotatably connected to the bottom of the shock-absorbing rod 35. A threaded ring 38 is sleeved on the surface of the lead screw 37. A lower fixing plate 370 is provided at the bottom of the lead screw 37. A gripper 39 is movably provided around the lower fixing plate 370.

[0024] A first motor 13 is mounted on the top of the first gear 15. Connecting rods 14 for connecting to the top of the support frame 11 are mounted at both ends of the first motor 13. An annular groove 18 is arranged parallel above the first chain 19. Lifting rings 33 are engaged on both sides of the annular groove 18. The first motor 13 is fixedly mounted on the top of one end of the support frame 11. The output shaft of the first motor 13 extends vertically downward and is connected to the rotating shaft of the first gear 15 via a coupling to provide driving force for the rotation of the first gear 15. The upper end of the lifting ring 33 is engaged inside the annular groove 18 and can slide freely along the extension direction of the annular groove 18. The lower end of the lifting ring 33 extends to the outside of the annular groove 18 and is used to connect to the suspension box assembly 3.

[0025] The lower support rod 21 has a hanging rod 16 at its top for connection with the support frame 11. The second gear 22 has a third motor 25 at its bottom for driving. The third motor 25 is fixedly connected to the lower support rod 21. The lower support rod 21 has symmetrically arranged limiting grooves 24 at both ends for supporting the second chain 23. The hanging rod 16 is vertically arranged, with its top end fixedly connected to the bottom of the support frame 11 by bolts or welding, and its bottom end fixedly connected to the top of the lower support rod 21 by bolts or welding. Multiple hanging rods 16 are provided, evenly distributed along the length of the lower support rod 21, thereby firmly suspending the lower support rod 21 below the support frame 11. The two second gears 22 are rotatably connected to the opposite side walls at both ends of the lower support rod 21 through bearing seats. The two second gears 22 are coaxially fixedly connected to each other through a transmission shaft to achieve synchronous rotation. The output shaft of the third motor 25 is connected to the rotating shaft of the second gear 22 through a coupling. The second chain 23 is wound between the two second gears 22 to provide driving force for the rotation of the second gear 22, forming a closed-loop transmission circuit. The second chain 23 is an annular conveyor chain with several chain links evenly distributed on its surface for meshing with the teeth of the second gear 22. The limiting groove 24 is a groove structure opened at the bottom of both ends of the lower support rod 21, and its cross-section is U-shaped. The downward section of the second chain 23 is embedded in the limiting groove 24. The width of the limiting groove 24 is adapted to the width of the second chain 23, thereby limiting the second chain 23 in the horizontal and vertical directions to prevent the second chain 23 from deviating or sagging during operation. When the third motor 25 starts, its output shaft drives the second gear 22 to rotate. The second gear 22 drives the second chain 23 to circulate along the annular path through tooth meshing. The direction of movement of the second chain 23 is consistent with the direction of movement of the first chain 19, thereby realizing synchronous conveying up and down.

[0026] A second motor 17 is provided at the other end of the support frame 11. The second motor 17 is fixedly installed at the end of the support frame 11 away from the first gear 15. The output shaft of the second motor 17 is also vertically downward. A connecting plate 112 is provided at the bottom of the second motor 17. A slide rod 114 is telescopically provided at one end of the connecting plate 112. A stop bar 113 is provided at one end of the slide rod 114. A baffle 110 is provided on the side of the support frame 11. A limit plate 111 is provided at the bottom of the baffle 110. The first chain 19 is clamped between the limit plate 111 and the stop bar 113. The connecting plate 112 is horizontally arranged. One end of it is fixedly connected to the bottom surface of the end of the support frame 11 by bolts. The other end extends outward. A guide hole is opened at the extended end of the connecting plate 112. The slide rod 114 slides through the guide hole and can reciprocate along its axial direction in the guide hole. The stop bar 113 is a long strip-shaped block. The structure is vertically fixed to one end of the slide bar 114 near the inner side of the first chain 19. The stop bar 113 is used to limit the first chain 19 from the inside. The limiting plate 111 is located on the outside of the first chain 19, and the stop bar 113 is located on the inside of the first chain 19. The distance between the two is adapted to the width of the first chain 19, thereby limiting the first chain 19 in the horizontal direction and preventing the first chain 19 from swaying left and right during operation. When the first motor 13 is started, its output shaft drives the first gear 15 to rotate. The first gear 15 drives the first chain 19 to circulate along the circular path through gear meshing. At the same time, the second motor 17, as an auxiliary drive or tension adjustment component, can adjust the clamping distance between the stop bar 113 and the limiting plate 111 by extending and retracting the slide bar 114, thereby adjusting the tension of the first chain 19 and ensuring the smoothness and reliability of the chain drive.

[0027] A connecting shaft 32 is provided at the bottom of the lifting ring 33. The middle part of the lifting ring 33 is engaged with the first chain 19. The connecting shaft 32 is fixedly connected to the top of the storage box 31. A sliding groove 310 is provided on the top of the storage box 31. Side sliding grooves 311 are symmetrically provided on the inner side of the sliding groove 310. Sliding blocks 351 for sliding connection inside the side sliding grooves 311 are symmetrically provided at both ends of the top of the shock absorber 35. A fourth motor 36 for driving the lead screw 37 to rotate is provided at the bottom of the shock absorber 35. The middle part of the lifting ring 33 is engaged with the first chain 19. The upper end of the lifting ring 33 passes through the gap between the links of the first chain 19 and is engaged in the annular groove 18, thereby fixing the upper end of the suspension box assembly 3 to the first chain 19. The connecting shaft 32 is fixedly connected to the top of the storage box 31. The bottom end of the connecting shaft 32 is fixedly connected to the center of the top of the storage box 31 by bolts or welding. The shock absorber 35 is T-shaped or I-shaped block. The structure has an upper part that is slidably embedded in the slide groove 310. The slider 351 is a rectangular protrusion protruding from both ends of the top of the shock-absorbing rod 35. Its external dimensions are adapted to the cross-sectional dimensions of the side slide groove 311. The slider 351 is slidably embedded inside the side slide groove 311 and can slide freely along the extension direction of the side slide groove 311. After the food is transported to the designated position, the folding curtain 34 can be opened, and the plate holding the food can be lifted out as a whole by holding the top of the shock-absorbing rod 35, avoiding damage caused by the shock-absorbing rod 35. If the food is too hot and the plate becomes too hot to handle, it may slip from your hand or cause burns to staff. When the threaded ring 38 moves upward along the screw 37, the connecting rod 380 causes the upper end of the gripper 39 to open outward and the lower end of the gripper 39 to close inward, thereby holding the edge of the plate placed on the lower fixed plate 370. When the threaded ring 38 moves downward along the screw 37, the connecting rod 380 causes the upper end of the gripper 39 to close inward and the lower end of the gripper 39 to open outward, thereby releasing the plate.

[0028] A folding curtain 34 is provided at the opening of the storage box 31. Connecting rods 380 for connecting to the gripper 39 are provided around the threaded ring 38. A support plate 390 is provided at the bottom of the gripper 39. Lower fixing blocks 312 for engaging with the second chain 23 are symmetrically provided at the bottom of the storage box 31. The storage box 31 is a rectangular box structure with an opening at the top, forming an internal storage space for accommodating food. The storage box 31 is made of food-grade stainless steel, which has good corrosion resistance and is easy to clean. The folding curtain 34 is a retractable flexible curtain structure, with its top fixedly connected to the front edge of the opening of the storage box 31 and its bottom free end. The folding curtain 34 can be made of waterproof and wear-resistant PVC or silicone material. When the folding curtain 34 is unfolded, it can cover the top opening of the storage box 31. The opening serves to prevent dust, splashes, and heat. Two lower fixing blocks 312 are provided, which are fixedly connected to the bottom ends of the storage box 31 respectively. Each lower fixing block 312 has a slot at the bottom, the shape of which is adapted to the shape of the link of the second chain 23. The second chain 23 is engaged in the slot, thereby realizing the fixed connection between the bottom of the storage box 31 and the second chain 23. The top of the suspension box assembly 3 is fixedly connected to the first chain 19 through the lifting ring 33, and the bottom is fixedly connected to the second chain 23 through the lower fixing blocks 312. Thus, the upper and lower ends of the suspension box assembly 3 are respectively constrained between the first chain 19 and the second chain 23, realizing the stable suspension of the suspension box assembly 3 during the conveying process and effectively preventing the suspension box assembly 3 from swinging back and forth or tilting during operation.

[0029] The working principle of this invention is as follows: When the conveying device is in operation, the first motor 13 in the conveying assembly 1 is started. The output shaft of the first motor 13 drives the first gear 15 to rotate. The first gear 15 drives the first chain 19 to circulate along the extension direction of the annular groove 18 through gear meshing. At the same time, the third motor 25 in the synchronization assembly 2 starts synchronously. The output shaft of the third motor 25 drives the second gear 22 to rotate. The second gear 22 drives the second chain 23 to circulate along the extension direction of the limiting groove 24 through gear meshing. The first chain 19 and the second chain 23 move in the same direction and at the same speed, and they keep running synchronously. The top of the hanging box assembly 3 is engaged with the first chain 19 through the hanging ring 33, and the bottom is engaged with the second chain 23 through the lower fixing block 312. Therefore, when the first chain 19 and the second chain 23 move synchronously, the hanging box assembly 3 moves forward along the conveying path with the movement of the chain, thereby conveying the dishes placed inside the storage box 31 from the back kitchen area to the designated pick-up location. The fourth motor 36 starts, driving the lead screw 37 to rotate in the opposite direction. The threaded ring 38 moves upward along the lead screw 37, and through the connecting rod 380, it drives the gripper 39 to retract inward, so that the gripper 39 clamps the edge of the plate from all sides. At the same time, the support plate 390 supports the bottom edge of the plate from below, achieving stable clamping and fixing of the plate. When the conveying device encounters emergency obstacle avoidance, track switching or emergency stop during operation, the plate will not be relatively displaced inside the storage box 31 because it is fixed from the side and bottom by the gripper 39 and the support plate 390. This effectively avoids the problem of shaking and soup spillage caused by inertia. After the conveyor transports the suspended box assembly 3 to the designated food collection position, the folding curtain 34 is opened, and the plate holding the food is lifted out by the top of the shock-absorbing rod 35. This prevents the plate from slipping out of the hand due to the food being too hot or causing burns to the staff. The fourth motor 36 rotates in the forward direction, causing the threaded ring 38 to move downward and the gripper 39 to open outward, releasing the clamping and fixing of the plate. The plate can then be easily removed from the lower fixed plate 370. During the entire food collection process, the staff does not need to touch the edge of the plate, effectively avoiding the problem of burns caused by the plate being too hot, and also avoiding the hygiene hazards caused by manual contact with the food.

[0030] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A suspended conveyor device for a smart restaurant, comprising a conveying assembly (1) for driving the suspended conveyor device, characterized in that, Below the conveying component (1) is a synchronization component (2) for conveying, and between the synchronization components (2) is a hanging box component (3) for placing the dishes. The conveying assembly (1) includes a support frame (11), and a first gear (15) for driving is symmetrically arranged at one end of the support frame (11), and a first chain (19) is meshed on the surface of the first gear (15). The synchronization component (2) includes a lower support rod (21), and the two ends of the lower support rod (21) are symmetrically provided with second gears (22) for synchronous rotation, and the surface of the second gears (22) is meshed with a second chain (23). The suspension box assembly (3) includes a storage box (31), a shock absorber rod (35) is slidably connected to the top of the inner cavity of the storage box (31), a lead screw (37) is rotatably connected to the bottom of the shock absorber rod (35), a threaded ring (38) is sleeved on the surface of the lead screw (37), a lower fixing plate (370) is provided at the bottom of the lead screw (37), and grippers (39) are movably provided around the lower fixing plate (370).

2. The suspended conveyor device for an intelligent restaurant according to claim 1, characterized in that, The first gear (15) is provided with a first motor (13) at its top. The first motor (13) is provided with connecting rods (14) at both ends for connecting to the top of the support frame (11). An annular groove (18) is provided parallel above the first chain (19). Lifting rings (33) are engaged on both sides of the annular groove (18).

3. The suspended conveyor device for an intelligent restaurant according to claim 1, characterized in that, The top of the lower support rod (21) is provided with a hanger (16) for connecting with the support frame (11), and the bottom of the second gear (22) is provided with a third motor (25) for driving.

4. The suspended conveyor device for an intelligent restaurant according to claim 3, characterized in that, The third motor (25) is fixedly connected to the lower support rod (21), and the two ends of the lower support rod (21) are symmetrically provided with limiting grooves (24) for supporting the second chain (23).

5. A suspended conveyor device for an intelligent restaurant according to claim 1, characterized in that, The other end of the support frame (11) is provided with a second motor (17), and the bottom of the second motor (17) is provided with a connecting plate (112). One end of the connecting plate (112) is provided with a sliding rod (114).

6. A suspended conveyor device for an intelligent restaurant according to claim 5, characterized in that, One end of the slide bar (114) is provided with a stop bar (113), the side of the support frame (11) is provided with a baffle (110), the bottom of the baffle (110) is provided with a limiting plate (111), and the first chain (19) is clamped between the limiting plate (111) and the stop bar (113).

7. A suspended conveyor device for an intelligent restaurant according to claim 2, characterized in that, The bottom of the lifting ring (33) is provided with a connecting shaft (32), the middle part of the lifting ring (33) is engaged with the first chain (19), the connecting shaft (32) is fixedly connected to the top of the storage box (31), the top of the storage box (31) is provided with a sliding groove (310), and the inner side of the sliding groove (310) is symmetrically provided with side sliding grooves (311).

8. A suspended conveyor device for an intelligent restaurant according to claim 7, characterized in that, The top two ends of the shock absorber (35) are symmetrically provided with sliders (351) for sliding connection inside the side slide groove (311), and the bottom of the shock absorber (35) is provided with a fourth motor (36) for driving the lead screw (37) to rotate.

9. A suspended conveyor device for an intelligent restaurant according to claim 1, characterized in that, The storage box (31) has a folding curtain (34) at its opening. The threaded ring (38) has a connecting rod (380) around its perimeter for connecting to the gripper (39). The gripper (39) has a support plate (390) at its bottom. The storage box (31) has a lower fixing block (312) symmetrically arranged at its bottom for engaging with the second chain (23).

10. The method of operating a suspended conveyor device for an intelligent restaurant according to any one of claims 1-9, characterized in that, Includes the following steps: S1. When the conveying device is in working condition, the first motor (13) in the conveying assembly (1) is started. The output shaft of the first motor (13) drives the first gear (15) to rotate. The first gear (15) drives the first chain (19) to move cyclically along the extension direction of the annular groove (18) through gear meshing. S2. The third motor (25) in the synchronization component (2) starts synchronously. The output shaft of the third motor (25) drives the second gear (22) to rotate. The second gear (22) drives the second chain (23) to circulate along the extension direction of the limiting groove (24) through gear meshing. The first chain (19) and the second chain (23) move in the same direction and at the same speed, and the two keep running synchronously. S3. When placing the food, the fourth motor (36) starts and drives the lead screw (37) to rotate in the opposite direction. The threaded ring (38) moves upward along the lead screw (37) and drives the gripper (39) to retract inward through the connecting rod (380), so that the gripper (39) holds the edge of the plate from all sides. At the same time, the tray (390) supports the bottom edge of the plate from below. S4. When the dishes are delivered, the first chain (19) and the second chain (23) move synchronously, and the hanging box assembly (3) moves forward along the conveying path with the movement of the chain, conveying the dishes placed inside the storage box (31) from the kitchen area to the designated pick-up location. S5. After the conveying device transports the hanging box assembly (3) to the designated food pick-up position, open the folding curtain (34), hold the top of the shock absorber (35) and lift the plate holding the food out as a whole. The fourth motor (36) rotates in the forward direction, causing the threaded ring (38) to move downward and the gripper (39) to open outward, releasing the clamping and fixing of the food plate, and the food plate can be removed from the lower fixed plate (370).

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