Tableware conveying device and food distribution equipment

Abstract

The utility model relates to the technical field of food equipment, in particular to a tableware conveying device and food distribution equipment, the tableware conveying device comprises a driving rack and a conveying assembly arranged on the driving rack, and the conveying assembly comprises a tableware bearing frame used for bearing tableware. The driving rack is provided with a detection assembly capable of detecting the state of tableware on the tableware bearing frame, the detection assembly comprises a first detection sensor, and specifically, the first detection sensor can detect the tableware bearing frame so as to confirm whether the tableware bearing frame bears the tableware or not; the design that the first detection sensor is obliquely installed on the driving rack is adopted, so that the output end of the first detection sensor can point to the outer side wall of tableware, the detection angle of the sensor is optimized, the detection area of the sensor is optimized, it is ensured that the sensor can accurately confirm that the tableware is borne on the tableware bearing frame, and the situations of false detection and missing detection are reduced; and the overall reliability and stability of the system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food equipment, in particular to a tableware conveying device and food dispensing equipment. Background Art

[0002] In the modern catering service industry, the application of automated tableware conveying devices and food dispensing equipment is becoming increasingly widespread. These devices have greatly improved the quality and efficiency of catering services through efficient and precise operation. However, in actual application, these devices often face a series of technical challenges, especially in tableware detection and identification.

[0003] During previous commissioning, we discovered a common problem: tableware, especially bowls, sent by customers could be accurately detected during in-plant commissioning, but often failed to detect once installed on-site. After in-depth analysis, we identified the following key issues:

[0004] Different types of tableware have significant differences in their physical properties, such as surface texture and glossiness. This inconsistency leads to different detection effects of the sensor, with some being good and some being poor.

[0005] In addition, existing detection sensors are usually installed on the tableware conveying device in a horizontal and transverse direct installation method. This direct installation method results in a large angle between the sensor and the arc side of the tableware, which limits the sensor's detection area and makes it impossible to accurately detect whether the tableware conveying device carries tableware. Taking sensors that need to output detection media, such as photoelectric sensors and ultrasonic sensors, as an example, the detection media (such as light beams, ultrasonic waves) output by these sensors are prone to reflection deviation when encountering the outer wall of the tableware, resulting in the detection medium being unable to accurately return to the sensor, thereby causing detection failure. For visual sensors, the direct installation method limits their field of view, making it difficult for the sensor to capture the overall image of the bowl, especially when the output end of the visual sensor points to the edge and bottom area of the bowl.

[0006] The present invention is proposed in view of the deficiencies in the prior art. Utility Model Content

[0007] Regarding the detection sensors on the existing tableware conveying devices mentioned above, they are usually assembled on the tableware conveying devices in a horizontal and transverse direct installation manner. This direct installation method makes the angle between the sensor and the arc side of the tableware larger, resulting in a limited detection area of the sensor, and the technical problem of being unable to accurately detect whether the tableware conveying device is carrying tableware.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] A tableware conveying device includes a drive frame and a conveying component arranged on the drive frame, the conveying component includes a tableware support rack for carrying tableware, the drive frame is provided with a detection component capable of detecting the status of tableware on the tableware support rack, the detection component includes a first detection sensor, and the first detection sensor is arranged at an angle on the drive frame so that the output end of the first detection sensor can point to the outer wall of the tableware.

[0010] In the tableware conveying device as described above, the output end of the first detection sensor is higher than the tail end of the first detection sensor.

[0011] In the tableware conveying device as described above, a first assembly portion for assembling a first detection sensor is provided on the side wall of the driving frame, and a connecting member is provided between the first assembly portion and the first detection sensor, and the connecting member enables the first detection sensor to be detachably connected to the first assembly portion.

[0012] In the tableware conveying device as described above, the first assembly portion includes a connecting section and an inclined section that are connected to each other, the connecting section is connected to the side wall of the driving frame, and the first detection sensor is assembled to the inclined section.

[0013] In the tableware conveying device as described above, the connecting component includes an assembly hole provided on the inclined section and a connecting piece provided on the first detection sensor, the assembly hole is for the first detection sensor to pass through, and the connecting piece can be connected to the inclined section to fix the first detection sensor on the inclined section.

[0014] In the tableware conveying device as described above, there are two connecting members, which are respectively located on both sides of the assembly hole. The two connecting members can respectively abut against both sides of the inclined section to clamp the first detection sensor on the inclined section.

[0015] In the tableware conveying device as described above, the driving frame is provided with an avoidance hole corresponding to the output end of the first detection sensor.

[0016] In the tableware conveying device as described above, the first detection sensor is a photoelectric sensor, an ultrasonic sensor, a visual sensor or a capacitive sensor.

[0017] In the tableware conveying device as described above, the included angle between the central axis of the first detection sensor and the horizontal plane is α, wherein α satisfies: 10°≤α≤80°.

[0018] A food dispensing device comprises a casing and a food dispensing device arranged in the casing, wherein a tableware conveying device as described above is arranged in the casing, a food outlet is provided at the bottom of the food dispensing device, and a tableware inlet and outlet is provided on the casing. The tableware conveying device also includes a driving component arranged on a driving frame, the driving component includes a driving motor and a transmission assembly, a transmission component is provided on the conveying assembly, the transmission assembly is arranged between the driving motor and the transmission component, and is respectively connected to the two in a transmission manner, the driving motor can drive the transmission component to move through the transmission assembly, so that the conveying assembly can convey the tableware back and forth between the tableware inlet and outlet and the food outlet.

[0019] The beneficial effects of the utility model are:

[0020] The present invention relates to a tableware conveying device and a food dispensing device, which relate to the technical field of food equipment. The tableware conveying device includes a driving frame and a conveying component arranged on the driving frame. The conveying component includes a tableware support rack for carrying tableware. The driving frame is provided with a detection component capable of detecting the status of tableware on the tableware support rack. The detection component includes a first detection sensor. Specifically, the first detection sensor can detect the tableware support rack to confirm whether the tableware support rack carries tableware. By adopting a design in which the first detection sensor is obliquely mounted on the driving frame, the output end of the first detection sensor can point to the outer wall of the tableware, thereby optimizing the detection angle of the sensor, optimizing the detection area of the sensor, ensuring that the sensor can accurately confirm that the tableware support rack carries tableware, reducing false detection and missed detection, and improving the overall reliability and stability of the system.

[0021] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a partial cross-sectional schematic diagram of a tableware conveying device in the prior art;

[0023] Figure 2 It is a rear view schematic diagram of the tableware conveying device of the present invention;

[0024] Figure 3 It is a partial cross-sectional schematic diagram of the tableware conveying device of the present invention;

[0025] Figure 4 This is a structural diagram of the tableware conveying device of the present invention;

[0026] Figure 5 for Figure 4 An enlarged schematic diagram of the labeled portion B;

[0027] Figure 6This is one of the structural diagrams of the food dispensing device of the present invention;

[0028] Figure 7 for Figure 6 Schematic cross-sectional view along line AA;

[0029] Figure 8 This is the second structural diagram of the food dispensing device of the present invention;

[0030] Figure 9 This is one of the exploded schematic diagrams of the food dispensing device of the present invention;

[0031] Figure 10 This is the second exploded schematic diagram of the food dispensing device of the present invention;

[0032] Figure 11 This is the third exploded schematic diagram of the food dispensing device of the present invention;

[0033] Figure 12 This is one of the structural diagrams of the rice storage bucket of the present invention;

[0034] Figure 13 This is the second structural diagram of the rice storage bucket of the present invention;

[0035] Figure 14 This is another structural schematic diagram of the tableware support rack of the present invention. DETAILED DESCRIPTION

[0036] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.

[0037] like Figures 2 to 14 As shown, a tableware conveying device of this embodiment includes a driving frame 53 and a conveying component 51 arranged on the driving frame 53, the conveying component 51 includes a tableware supporting rack 512 for carrying tableware, and the driving frame 53 is provided with a detection component capable of detecting the status of the tableware on the tableware supporting rack 512, the detection component includes a first detection sensor 537, and the first detection sensor 537 is tilted on the driving frame 53 so that the output end of the first detection sensor 537 can point to the outer wall of the tableware.

[0038] Specifically, the first detection sensor 537 can detect the cutlery support rack 512 to confirm whether there are cutlery on the cutlery support rack 512. By adopting the design of obliquely mounting the first detection sensor 537 on the drive frame 53, the output end of the first detection sensor 537 can point to the outer wall of the cutlery, thereby optimizing the detection angle of the sensor, optimizing the detection area of the sensor, and ensuring that the sensor can accurately confirm that there are cutlery on the cutlery support rack 512, thereby reducing false detection and missed detection, and improving the overall reliability and stability of the system.

[0039] Preferably, the first detection sensor 537 of this embodiment is a detection component such as a photoelectric sensor, an ultrasonic sensor, a visual sensor or a capacitive sensor.

[0040] Preferably, the first detection sensor 537 adopts a detection component such as a photoelectric sensor or an ultrasonic sensor that requires a detection medium (such as a light beam, ultrasonic wave, etc.) to detect tableware. The design of the first detection sensor 537 being assembled at an angle can reduce the angle between the output detection medium and the side wall of the tableware, making the detection medium nearly vertical or perpendicular to the arc surface of the bowl, effectively reducing the reflection deviation problem of the detection medium (such as a light beam, ultrasonic wave, etc.).

[0041] Preferably, taking the first detection sensor 537 as a photoelectric sensor as an example, since the surface texture and glossiness of some tableware (such as bowls, plates, etc.) are quite different, this will affect the detection effect of the photoelectric sensor. The photoelectric sensor relies on reflected light for detection. If the surface of the bowl is uneven or the reflection characteristics are different, the sensor will not receive consistent signals, thereby affecting the detection. Figure 1 As shown, the angle between the light beam emitted by the existing horizontally mounted photoelectric sensor and the arc side of the bowl is large, resulting in an unsatisfactory angle of the emitted light, and part of the light cannot be well reflected back to the sensor, resulting in the failure to detect the bowl.

[0042] The present application adopts a design in which the photoelectric sensor is tilted on the drive frame 53, which can reduce the angle between the emitted light and the side wall of the tableware, making the light nearly vertical or vertical to the arc surface of the bowl, thereby increasing the possibility of light being reflected back to the sensor and reducing detection failures caused by inconsistent bowl surfaces. In addition, the light ranger emitted by the obliquely mounted sensor can cover the surface of the tableware as much as possible, especially the arc part, reducing dead angle areas where light cannot be reflected back.

[0043] Furthermore, by optimizing the angle of light emitted by the photoelectric sensor, the detection stability of the sensor under different tableware surface conditions is improved, thereby enhancing the reliability of the detection system.

[0044] In other embodiments, the first detection sensor 537 is an ultrasonic sensor, which detects objects by emitting ultrasonic waves and receiving their reflected waves. The design of tilting the ultrasonic sensor on the drive frame 53 can avoid scattering of ultrasonic waves and inaccurate detection. By tilting the sensor, the emission and reception angles of ultrasonic waves can be optimized, thereby improving the accuracy of detection.

[0045] In addition, ultrasonic sensors can reduce the impact of gloss and color on the surface of tableware by detecting the reflection of sound waves, and are suitable for tableware made of various materials.

[0046] In other embodiments, the first detection sensor 537 is a visual sensor (camera). For objects with irregular shapes or specific angles such as tableware, the design of tilting the visual sensor on the drive frame 53 can effectively expand the field of view of the visual sensor, thereby improving the accuracy of detection and having a wide range of applications.

[0047] In other embodiments, the first detection sensor 537 can also adopt a capacitive sensor to determine the presence of an object by detecting the change in capacitance when the object approaches the sensor. By detecting the change in capacitance, it does not rely on the reflected signal, and thus can avoid the influence of the surface texture and glossiness of the tableware on the detection. After adjusting the installation angle (such as oblique installation), the photoelectric sensor can improve the detection accuracy of the bowl. The user can choose the appropriate design according to actual needs.

[0048] Preferably, the first detection sensor 537 can be arranged on the top, bottom or side wall of the driving frame 53, and a suitable design can be selected according to actual needs.

[0049] like Figures 2 to 14 As shown, the output end of the first detection sensor 537 of this embodiment is higher than the tail end of the first detection sensor 537 .

[0050] Specifically, when the output end of the sensor is higher than the tail end, its detection medium (such as a light beam, ultrasound, etc.) can better cover the entire surface of the tableware, rather than being limited to a certain plane. This design helps detect different heights and angles of the tableware, improving the comprehensive monitoring capability of the tableware status.

[0051] Furthermore, this tilted design can optimize the reflection path of the detection medium and reduce the signal reflection deviation problem caused by improper placement of the sensor, thereby improving the accuracy and reliability of the detection.

[0052] like Figures 2 to 14As shown, a first assembly portion 533 for assembling a first detection sensor 537 is provided on the side wall of the driving frame 53 of this embodiment, and a connecting member is provided between the first assembly portion 533 and the first detection sensor 537, and the connecting member can enable the first detection sensor 537 to be detachably connected to the first assembly portion 533.

[0053] When the sensor needs to be maintained, repaired or replaced, the operator can quickly remove and reinstall it, reducing equipment downtime and keeping maintenance and replacement costs relatively low.

[0054] Specifically, the detachable connection design allows the sensor to be easily adjusted in position and angle to adapt to different detection needs. Whether facing tableware of different sizes and shapes or in different application scenarios, the sensor's installation position can be flexibly adjusted.

[0055] Furthermore, as technology develops, the detachable design makes it easy to upgrade and replace new sensors at any time, maintaining the advancement and efficiency of the equipment.

[0056] Furthermore, during the equipment production and assembly process, sensors and assembly parts can be produced and tested separately and quickly connected during final assembly, simplifying the assembly process and improving production efficiency.

[0057] like Figures 2 to 14 As shown, the first assembly portion 533 of this embodiment includes a connecting section 5331 and an inclined section 5332 that are connected to each other. The connecting section 5331 is connected to the side wall of the driving frame 53 , and the first detection sensor 537 is assembled to the inclined section 5332 .

[0058] Specifically, the inclined section 5332 allows the first detection sensor 537 to be installed at a suitable angle. This design enables the detection range of the first detection sensor 537 to better cover the surface of the tableware, reduce detection blind spots, and improve detection accuracy and reliability.

[0059] Specifically, the connecting section 5331 is firmly connected to the side wall of the driving frame 53, providing a solid supporting structure, ensuring that the first detection sensor 537 remains stable during operation, and reducing detection errors caused by vibration or other external forces.

[0060] Furthermore, the combined design of the connecting section 5331 and the inclined section 5332 makes the installation of the sensor more flexible, and the angles and positions of the connecting section 5331 and the inclined section 5332 can be adjusted according to actual needs to adapt to different detection requirements and environments.

[0061] like Figures 2 to 14As shown, an extension section 5333 is further provided between the connecting section 5331 and the inclined section 5332 of this embodiment. The extension section 5333 extends outward so that there is a sufficient distance between the inclined section 5332 and the drive frame 53, so that the output end of the first detection sensor 537 will not be located in the drive frame 53, thereby avoiding mutual interference between the sensor structure, the sensor detection signal and the drive frame structure, ensuring the accuracy of the detection signal, and ensuring that it will not affect the normal operation of the cutlery support 512.

[0062] Specifically, the extension section 5333 can ensure a suitable spacing between the inclined section 5332 and the drive frame 53, so that the sensor can be installed in a more ideal position, avoiding the structure of the drive frame 53 affecting the inclination angle of the sensor, further optimizing the assembly of the sensor and the detection angle and range of the sensor, improving the accuracy and sensitivity of the sensor, and ensuring comprehensive monitoring of the tableware status.

[0063] like Figures 2 to 14 As shown, the connecting member of this embodiment includes an assembly hole 5334 provided on the inclined section 5332 and a connecting member 5335 provided on the first detection sensor 537, wherein the assembly hole 5334 is for the first detection sensor 537 to pass through, and the connecting member 5335 can be connected to the inclined section 5332 so that the first detection sensor 537 is fixed on the inclined section 5332.

[0064] Specifically, the first detection sensor 537 is assembled and positioned through the assembly hole 5334, and then the first detection sensor 537 is fixed to the inclined section 5332 through the connecting piece 5335. Such a design can simplify the assembly process of the first detection sensor 537, so that the sensor can be quickly and firmly installed in the designated position.

[0065] like Figures 2 to 14 As shown, there are two connecting members 5335 in this embodiment, which are respectively located on both sides of the assembly hole 5334. The two connecting members 5335 can respectively abut against the two sides of the inclined section 5332 to clamp the first detection sensor 537 on the inclined section 5332.

[0066] Specifically, by providing a connecting piece 5335 on either side of the assembly hole 5334, this design allows the first detection sensor 537 to be securely clamped to the inclined section 5332. Compared to a single-connector design, this dual-connector fixing method provides greater stability and reduces the risk of sensor shaking and displacement during operation.

[0067] Preferably, the connecting member 5335 can be connected in a variety of ways to ensure the stable installation and fixation of the first detection sensor 537. The following are several preferred connection methods:

[0068] 1: Threaded connection: the connecting piece 5335 and the first detection sensor 537 are threadedly connected to provide a strong fixing force.

[0069] 2: Snap connection: the connector 5335 and the first detection sensor 537 are snap-fitted to achieve quick fixation and disassembly.

[0070] 3: Clamping connection: the connecting piece 5335 and the first detection sensor 537 are clamped together. The clamping mechanism fixes the sensor on the inclined section and can provide a stable fixing force.

[0071] You can choose the appropriate design according to actual needs.

[0072] like Figures 2 to 14 As shown, the drive frame 53 of this embodiment is provided with an avoidance hole 5371 corresponding to the output end of the first detection sensor 537. Such a design can prevent the side wall of the drive frame 53 from affecting the detection of the first detection sensor 537, and ensure that the detection medium output by the first detection sensor 537 that uses a detection medium (such as a light beam, ultrasonic wave, etc.) to detect tableware, such as a photoelectric sensor or an ultrasonic sensor, can be accurately guided to the outside of the tableware on the tableware support frame 512.

[0073] like Figures 2 to 14 As shown, the angle between the central axis of the first detection sensor 537 of this embodiment and the horizontal plane is α, where α satisfies: 10°≤α≤80°. Specifically, the horizontal plane is a horizontal plane parallel to the supporting surface at the bottom of the cutlery support bracket 512. By setting the first detection sensor 537 with an inclination angle in the range of 10° to 80°, the detection blind area can be effectively reduced, so that the sensor can cover the key detection area of the cutlery, and the accuracy and reliability of the detection can be improved. The moderate angle enables the sensor to avoid detection dead angles or errors that may be caused by vertical or overly parallel settings, thereby improving the detection accuracy. If it is less than this range, the angle is too small, which may cause the sensor to be close to parallel to the surface of the cutlery, and the contact area is too small, and the cutlery cannot be accurately detected. If it is greater than this range, the angle is too large, which may cause the inclination angle of the sensor to be too large, and the characteristics of the cutlery surface cannot be effectively captured.

[0074] Within this angle range, the sensor can avoid interference caused by light reflection or other environmental factors. Especially for optical sensors, it can reduce detection errors caused by reflection.

[0075] When α is 10°, the sensor is tilted more gently, which is suitable for detecting shorter tableware because this angle can better capture the key parts of short tableware.

[0076] When α is 80°, the sensor is installed almost vertically, which is suitable for detecting high tableware. This angle can effectively cover the surface features of high tableware.

[0077] When α is 45°, the sensor is at a medium tilt angle, which is suitable for detecting tableware of moderate height and can achieve a balance between detection range and accuracy.

[0078] like Figures 2 to 14 As shown, the cutlery support rack 512 of this embodiment includes a tray 5121 and a limiting ring 5123 provided on the tray 5121 . The limiting ring 5123 is located above the tray 5121 , and a connecting component 5124 is provided between the limiting ring 5123 and the tray 5121 .

[0079] With such a design, the limiting ring 5123 can limit tableware of larger size (such as wider or taller), ensuring that the tableware will not shift or fall over due to shaking during the transportation process.

[0080] Preferably, the connecting component 5124 is provided with an avoidance opening 5125, through which the avoidance opening 5125 ensures that the detection medium output by the first detection sensor 537, which uses a photoelectric sensor or an ultrasonic sensor and requires a detection medium (such as a light beam, ultrasonic wave, etc.) to detect the tableware, can be accurately guided to the outside of the tableware on the tableware support rack 512, so as to avoid affecting the accuracy of the detection of the first detection sensor 537 on the tableware support rack 512.

[0081] Preferably, the connection assembly 5124 includes a plurality of circumferentially arranged connection columns, and the avoidance opening 5125 is the distance between adjacent connection columns, which has the advantage of a simple structure.

[0082] Preferably, the cutlery support rack 512 also includes a bottom limiting gasket 5122 provided at the bottom of the tray 5121. The bottom limiting gasket 5122 can limit the cutlery with grooves or special shapes on the bottom. The bottom limiting gasket 5122 can cooperate with the cutlery with grooves or special shapes on the bottom to firmly fix these cutlery and prevent them from shifting during transportation.

[0083] Preferably, the tableware can be limited by a single limiting ring 5123 or a bottom limiting gasket 5122, or by the two working together. This flexibility enables the tableware support 512 to adapt to tableware of different types and sizes, providing a wider adaptability.

[0084] like Figures 2 to 14As shown, the food dispensing device of this embodiment includes a casing 1 and a food dispensing device 2 provided in the casing 1, a tableware conveying device 5 as described above is provided in the casing 1, a meal outlet 21 is provided at the bottom of the food dispensing device 2, and a tableware inlet and outlet 11 is provided on the casing 1, and the tableware conveying device 5 also includes a driving component 52 provided on a driving frame 53, the driving component 52 includes a driving motor 521 and a transmission assembly 522, a transmission member 511 is provided on the conveying assembly 51, the transmission assembly 522 is provided between the driving motor 521 and the transmission member 511, and is respectively connected to the two in a transmission manner, the driving motor 521 can drive the transmission member 511 to move through the transmission assembly 522, so that the conveying assembly 51 can convey the tableware back and forth between the tableware inlet and outlet 11 and the meal outlet 21.

[0085] The food dispensing device designed in this way can accurately detect whether there are cutlery on the cutlery holder 512, avoiding the situation where there is no cutlery on the cutlery holder 512 but the cutlery holder 512 is still driven to move to the bottom of the food dispensing device 2 below the food outlet 21 to perform the food dispensing process.

[0086] like Figures 2 to 14 As shown, in this embodiment, the transmission member 511 is located on one side of the driving frame 53, the driving motor 521 is arranged on the outer side wall of the driving frame 53 adjacent to the transmission member 511, and the transmission assembly 522 is arranged between the driving motor 521 and the transmission member 511, and is respectively connected to the two in transmission. With such a design, the driving motor 521 and the transmission member 511 are arranged separately, and the driving motor 521 is arranged on the outer side wall of the driving frame 53 adjacent to the transmission member 511, which can avoid overlapping of the driving motor and the transmission member, and avoid the tableware conveying device 5 from occupying more space in the width direction, so that the whole food dispensing equipment applied to the tableware conveying device is more miniaturized and the structure is more compact.

[0087] like Figures 2 to 14 As shown, the transmission assembly 522 of this embodiment includes a first synchronous wheel 523 provided on the output end of the driving motor 521, a second synchronous wheel 524 provided on the transmission component 511, and a synchronous belt 525 provided between the first synchronous wheel 523 and the second synchronous wheel 524.

[0088] Preferably, a synchronous belt and a synchronous wheel are used for transmission. Since the synchronous belt transmission allows the drive motor 521 to be installed on the drive frame 53 close to the outer wall of the transmission component 511, instead of using a design in which the drive motor 521 is assembled on the side of the drive frame and connected to the transmission component 511 through a coupling, this arrangement saves space inside the equipment, making the entire tableware conveying device more compact and miniaturized.

[0089] Furthermore, the elasticity of the synchronous belt allows the system to better achieve soft starting and soft stopping, which can significantly reduce the impact, vibration and noise caused by sudden starting and stopping in the old model using coupling transmission, improve the stability of the equipment and user experience. In addition, the synchronous belt and synchronous wheel transmission have higher adaptability and elasticity, making the tableware conveying device more reliable and stable.

[0090] Preferably, a synchronous belt drive system is usually quieter than a coupling drive system, which can effectively reduce the noise level during operation and effectively improve the user experience.

[0091] Specifically, the synchronous belt and synchronous wheel system will naturally jump teeth or slip when overloaded. This feature can respond to abnormal conditions more promptly, thereby providing more effective overload protection. Compared with the old model that uses overload protection by twisting off the coupling when overloaded, the synchronous belt and synchronous wheel system causes less damage when overloaded, and the feedback time is shorter, and can quickly detect overload of the transmission component 522, which not only improves the safety of the equipment, but also reduces potential damage and maintenance needs.

[0092] Preferably, the transmission assembly 522 can also be implemented in the form of a gear set or a chain, and a suitable design can be selected according to actual needs.

[0093] like Figures 2 to 14 As shown, the driving component 52 of this embodiment also includes a motor fixing portion 526 slidably connected to the driving frame 53, the driving motor 521 is assembled to the motor fixing portion 526, and the driving frame 53 is also provided with a synchronous belt tensioning device 54, the synchronous belt tensioning device 54 includes an adjusting portion 541 fixed on the driving frame 53 and an adjusting component 542 provided on the adjusting portion 541, the adjusting component 542 is connected to the motor fixing portion 526, specifically, the position of the motor fixing portion 526 on the driving frame 53 is further adjusted by the adjusting component 542 to By adjusting the position of the drive motor 521 on the drive frame 53, the distance between the first synchronous wheel 523 on the drive motor 521 and the second synchronous wheel 524 on the transmission member 511 is adjusted. This design can easily adjust the tension of the synchronous belt 525 to ensure optimal transmission efficiency and durability. In addition, such a design can facilitate maintenance of the synchronous belt. When the synchronous belt needs maintenance, the distance between the first synchronous wheel 523 and the second synchronous wheel 524 can be appropriately adjusted to remove or replace the synchronous belt. This has the advantages of simple structure and easy operation.

[0094] like Figures 2 to 14As shown, the adjustment component 542 of this embodiment includes an adjustment screw 543 threadedly connected to the adjustment part 541, and one end of the adjustment screw 543 is connected to the motor fixing part 526. By screwing the adjustment screw 543, the position of the drive motor 521 on the motor fixing part 526 on the drive frame 53 can be adjusted without complicated tools or skills, and there is no need to reinstall the drive motor during the adjustment process. The adjustment can be completed by simply rotating the adjustment screw. The adjustment process is fast and does not require complicated operations, which reduces operational risks and saves maintenance time. It has the advantages of simple structure and easy operation.

[0095] Preferably, the threaded adjustment screw can accurately adjust the motor position, so that the tension of the synchronous belt can be adjusted very carefully to ensure that the equipment operates in the best condition. Moreover, when the adjustment screw is adjusted into place, the self-locking or locking fixing component of the adjustment screw 543 itself can ensure that the motor position remains stable and is not easily offset due to vibration or other factors.

[0096] Preferably, the adjustment assembly 542 of this embodiment also includes an adjustment nut 544, which is sleeved on the outside of the adjustment screw 543, increasing the threaded connection volume of the adjustment screw 543, helping to more firmly maintain the position of the drive motor, thereby reducing possible loosening or displacement of the drive motor during operation.

[0097] Preferably, the adjusting nut can share part of the load of the adjusting screw, so that the screw is not easily worn or damaged during long-term use, thereby extending the service life of the component.

[0098] Furthermore, the adjusting nut 544 can also be used to lock the adjusting nut to prevent the adjusting nut from accidentally loosening due to vibration or other mechanical stress.

[0099] like Figures 2 to 14 As shown, the driving frame 53 of this embodiment includes a transverse section 531, a turning section 532 and a lifting section 534. The turning section 532 is arranged between the transverse section 531 and the lifting section 534. The transverse section 531 is provided with a dining port 535, and the lifting section 534 is provided with a tableware delivery port 536. The height of the tableware delivery port 536 is higher than the height of the dining port 535.

[0100] Specifically, the tableware delivery port 536 is provided corresponding to the tableware inlet and outlet 11 on the housing 1 , and the dining port 535 is provided corresponding to the dining port 21 at the bottom of the food dispensing device 2 .

[0101] Specifically, by setting the cutlery delivery port 536 at a position higher than the height of the dining port 535, and then transporting the cutlery at the cutlery delivery port 536 to the dining port 535 through the transport component 51 for serving the meal, and after serving the meal, transporting the cutlery back to the cutlery delivery port 536 through the transport component 51, the cutlery inlet and outlet 11 for the user to place the cutlery does not need to be set below the food dispensing device, but the cutlery is transported to the bottom of the food dispensing device through the cutlery delivery device. Therefore, while the cutlery delivery port 536 on the cutlery delivery device 5 is set to be adapted to the user's height so that the user can place the cutlery, the position height of the food dispensing device in the casing can be further lowered, which is beneficial to reducing the overall volume of the food dispensing device, facilitating the overall transportation and placement of the food dispensing device, and also facilitating the user to add rice through the food dispensing device.

[0102] Preferably, the drive frame 53 of this embodiment is L-shaped, so that there is an assembly space between the inner sides of the transverse section 531 and the lifting section 534, thereby providing sufficient assembly space for components such as the food dispensing device 2 and the drive motor 521, which is conducive to making the structure of the food dispensing equipment more compact and miniaturized.

[0103] like Figures 2 to 14 As shown, the transmission component 511 of this embodiment is located on one side of the steering section 532 or the transverse section 531 , and the drive motor 521 is located on the front side, rear side or top wall of the lifting section 534 .

[0104] Preferably, the driving motor 521 in this embodiment is back-mounted on the lifting section 534 , that is, is disposed on the rear side of the lifting section 534 .

[0105] Preferably, the first detection sensor 537 is located at the tableware delivery port 536, and can detect whether there are tableware on the tableware support rack 512 located at the tableware delivery port 536, so that before the meal starts, it can be confirmed whether there are tableware on the tableware support rack 512. When it is detected that there are tableware on the tableware support rack 512, the meal is served normally, and the tableware support rack 512 supporting the tableware is moved to the bottom of the food distribution device 2 for meal serving. When it is detected that there are no tableware on the tableware support rack 512, the tableware support rack 512 will not move, and the meal serving process will not operate. The meal serving process will not be implemented until the presence of tableware is detected on the tableware support rack 512, thereby effectively ensuring the correct operation of the meal serving process.

[0106] like Figures 2 to 14As shown, the detection component of this embodiment includes a second detection sensor 538 and a rice detection sensor 539, both of which are arranged on the drive frame 53. Both are located at the dining port 535. The second detection sensor 538 can detect whether there are tableware on the tableware support rack 512, and the rice detection sensor 539 can detect whether there is food in the tableware. If there is rice, the meal will no longer be served repeatedly. This dual detection function ensures that after the system detects the tableware, it can further confirm the contents of the tableware to avoid repeated actions.

[0107] Preferably, the rice detection sensor 539 includes a fiber optic sensor, and the second detection sensor 538 adopts a photoelectric sensor, which can adapt to tableware of different types and materials, solving the problem that only a single type of tableware could be detected when relying solely on fiber optic sensors in the past. This makes the system more flexible and reliable when facing various tableware, and enables the detection component to detect different types of tableware, making it more applicable.

[0108] Preferably, the conveying assembly 51 of this embodiment also includes a conveying chain and a chain arc guide groove 513. The path of the conveying chain forms a closed-loop path. There are two conveying chains, which are respectively arranged on opposite sides of the driving frame 53, and the two conveying chains are respectively connected to the two sides of the cutlery support rack 512. With such a design, the conveying chain can effectively and stably drive the cutlery support rack 4 to move.

[0109] Preferably, the chain arc guide groove 513 corresponds to the conveying chain one by one and is used to assemble the conveying chain. Through the guiding cooperation between the chain arc guide groove 513 and the conveying chain, the conveying chain can maintain a stable moving state during transportation.

[0110] Preferably, the transmission component 511 of this embodiment includes a rotating shaft 514 and a sprocket 515 provided on the rotating shaft 514, and the sprocket 515 corresponds one-to-one to the conveying chain. One end of the rotating shaft 514 passes through the driving frame 53 and is connected to the second synchronous wheel 524. With such a design, the driving motor 521 can stably drive the rotating shaft 514 to rotate through the transmission assembly 532, thereby driving the conveying chain to rotate through the sprocket 515.

[0111] Preferably, a slag collecting plate 530 is provided at one end of the driving frame 53 close to the dining opening 535 in this embodiment. The slag collecting plate 53 can catch the food splashed out when serving the food, making it convenient for the user to clean up.

[0112] Preferably, the food distributing device in this embodiment is a rice cooker, and the food distributing device 2 is a rice distributing device. The rice distributing device can adopt the rice storage bucket 24, rice scraping mechanism 22 and rice cutting mechanism 23 of the existing structure, as long as the rice distributing operation can be realized. The rice distributing device disclosed in patent number CN221438462U can also be used to realize the rice distributing work of various amounts of rice. The appropriate design can be selected according to actual needs.

[0113] Preferably, a cutting member 241 is provided in the rice storage bucket 24 of this embodiment, and the cutting member 241 can cut and disperse the rice in the rice storage bucket 24, which is conducive to the discharge of the rice in the rice storage bucket 24 and avoids the rice from accumulating for too long and forming lumps.

[0114] Preferably, the bottom of the rice storage bucket 24 has an outlet for discharging rice, and the rice can be discharged through the bottom outlet of the rice storage bucket 24 under the action of its own weight.

[0115] Preferably, the cutting member 241 includes at least one cutting tube. The rice is pressed toward the cutting tube under its own weight and the weight of other rice. The cutting tube cuts and disperses the agglomerated rice to facilitate the falling of the rice.

[0116] Preferably, in other embodiments, there are multiple cutting tubes, which are spaced apart in the rice storage bucket 24, thereby expanding the cutting range of the cutting member 241 and ensuring that the rice can be affected by the cutting tubes no matter where it is accumulated, thereby preventing the problem of local agglomeration.

[0117] Preferably, the cross-sectional shape of the cutting tube is a polygon such as a rhombus or a triangle.

[0118] Preferably, at least one side wall of the rice storage bucket 24 is tilted, and the slope of the side wall is different from that of the other side walls. With such a design, the rice storage bucket 24 has an irregular and asymmetrical shape, so that an asymmetric supporting force is formed in the rice storage bucket 24, so that the rice cannot be firmly supported in the bucket, and the rice is prevented from forming a "bridging" effect in the bucket, that is, the rice supports each other and cannot slide down. This design reduces the residue and blockage of rice in the bucket, ensures the smoothness of each discharge operation, and can be discharged smoothly from the bottom opening under the action of its own weight.

[0119] In other embodiments, the cutting component 241 may also adopt an electric structure, such as providing a cutting motor and a cutting tool on the rice storage bucket 24, and the cutting motor drives the cutting tool to rotate in the rice storage bucket 24 to cut the rice in the rice storage bucket 24. The appropriate design can be selected according to actual needs.

[0120] Preferably, the front and rear sides of the casing 1 are both provided with door bodies 12, so that the user can open the casing from different directions. This double-door design significantly improves the accessibility of the device. The user can fully clean and maintain the interior of the casing without moving the equipment. It has the advantages of simple structure and easy operation.

[0121] Preferably, a power-off safety device is provided between the door body 12 and the casing 1, so that when the door body 12 is opened on the casing 1, all electrical components are powered off and stop working. This safety measure effectively prevents electrical hazards that may be caused by misoperation during maintenance or cleaning, and ensures the safety of the operator.

[0122] Preferably, the power-off safety device may be:

[0123] Mechanical interlocking device:

[0124] A mechanical interlock typically consists of a mechanical switch and a linkage. When the door is closed, the linkage keeps the switch on. When the door is opened, the linkage triggers the switch to disconnect the circuit. The mechanical interlock ensures that the circuit is only connected when the door is completely closed through a physical connection. Once the door is opened, the linkage mechanism forces the switch to disconnect the power supply.

[0125] Magnetic interlock switch:

[0126] The magnetic interlock switch consists of a magnet and a magnetic induction switch. The magnet is usually installed on the door body, and the induction switch is installed on the door frame. When the door body is closed, the magnet approaches the induction switch, and the switch senses the magnetic field and keeps the circuit connected; when the door body is opened, the magnetic field disappears, and the induction switch disconnects the circuit, thereby cutting off the power supply.

[0127] Photoelectric interlock switch:

[0128] Photoelectric interlock switches use a paired system of light beams and receivers. The light source is usually installed on one side of the door frame, and the receiver on the other side. When the door is closed, the light beam is received normally, keeping the circuit connected; when the door is opened, the light beam is interrupted and the receiver triggers the switch to disconnect the circuit.

[0129] Spring-loaded micro switch:

[0130] A micro switch is mounted on the edge of a door and features a spring or cam mechanism. The switch senses the door's open or closed state through mechanical action. When the door is closed, the spring or cam presses down the switch button, connecting the circuit. When the door is opened, the button pops up, disconnecting the circuit. The appropriate design is determined based on your needs.

[0131] Preferably, a rice adding port is provided on the top of the casing 1, and the top of the rice storage bucket 24 is communicated with the rice adding port. A cover 13 capable of closing the rice adding port is provided on the casing 1. With such a design, the user can add rice to the rice storage bucket 24 by opening the cover 13, without having to stop the machine to change the bucket to add rice, thereby achieving uninterrupted rice preparation.

[0132] Preferably, the cover plate 13 and the two side walls of the casing 1 are made of insulation material to insulate three sides of the rice storage bucket 24 to form 3D three-dimensional insulation. The top insulation can prevent water vapor from condensing and flowing away, thereby causing the rice to become dry.

[0133] Preferably, the casing 1 is provided with a cover 14 capable of closing the tableware inlet and outlet 11. The tableware inlet and outlet 11 can be closed when not serving food. The cover 14 can prevent dust, dirt or other debris from entering the interior of the casing 1 through the tableware inlet and outlet 11, thereby ensuring the cleanliness of the internal environment of the device and avoiding contamination of the tableware or affecting the normal operation of the device.

[0134] Preferably, the cover body 14 is made of a transparent material, so that the user can observe whether the cutlery support rack 512 is loaded with cutlery without opening the cover body 14 .

[0135] Preferably, the rice cutting mechanism 23 is detachably connected to the housing 1. When the food dispensing device is not needed for rice making, the user can open the corresponding door 12 on the housing 1, remove the rice cutting mechanism 23, and clean the inside of the housing 1.

[0136] Preferably, the food dispensing device also includes a serving plate 25. When the food dispensing device is not needed for serving rice, the user can also switch the rice cutting mechanism 23 to the serving plate 25, and then start the rice scraping mechanism 22 to clear the leftover rice in the rice storage bucket 24 into the serving plate, so that the user can clean the leftover rice in the rice storage bucket in a unified manner, making the leftover rice processing process simpler and more efficient. The user can easily complete the cleaning of the leftover rice in the rice storage bucket without the need for additional tools or complicated operations.

[0137] Preferably, a moving component 3 is also provided at the bottom of the food dispensing device to facilitate users to move the food dispensing device. For example, some schools require students to get food directly in the classroom without going to the cafeteria. In this case, the food dispensing device can be pushed to each classroom for getting food.

[0138] Preferably, the moving assembly 3 includes a plurality of moving wheels or universal wheels.

Claims

1. A tableware conveying device, characterized in that: The tableware conveying device (5) comprises a driving frame (53) and a conveying assembly (51) arranged on the driving frame (53); the conveying assembly (51) comprises a tableware support frame (512) for carrying tableware; the driving frame (53) is provided with a detection assembly capable of detecting the state of tableware on the tableware support frame (512); the detection assembly comprises a first detection sensor (537); the first detection sensor (537) is arranged obliquely on the driving frame (53) so that an output end of the first detection sensor (537) can point to the outer wall of the tableware.

2. A tableware conveying device according to claim 1, characterized in that: The output end of the first detection sensor (537) is higher than the tail end of the first detection sensor (537).

3. The tableware conveying device according to claim 1, characterized in that: A first assembly portion (533) for assembling a first detection sensor (537) is provided on a side wall of the drive frame (53), and a connecting member is provided between the first assembly portion (533) and the first detection sensor (537), wherein the connecting member enables the first detection sensor (537) to be detachably connected to the first assembly portion (533).

4. The tableware conveying device according to claim 3, characterized in that: The first assembly portion (533) comprises a connecting section (5331) and an inclined section (5332) connected to each other, the connecting section (5331) is connected to the side wall of the drive frame (53), and the first detection sensor (537) is assembled to the inclined section (5332).

5. The tableware conveying device according to claim 4, characterized in that: The connecting member comprises an assembly hole (5334) provided on the inclined section (5332) and a connecting member (5335) provided on the first detection sensor (537), wherein the assembly hole (5334) is for the first detection sensor (537) to pass through, and the connecting member (5335) can be connected to the inclined section (5332) so that the first detection sensor (537) is fixed on the inclined section (5332).

6. The tableware conveying device according to claim 5, characterized in that: There are two connecting members (5335), which are respectively located on both sides of the assembly hole (5334). The two connecting members (5335) can respectively abut against both sides of the inclined section (5332) to clamp the first detection sensor (537) on the inclined section (5332).

7. The tableware conveying device according to any one of claims 1 to 6, characterized in that: The driving frame (53) is provided with an avoidance hole (5371) corresponding to the output end of the first detection sensor (537).

8. The tableware conveying device according to any one of claims 1 to 6, characterized in that: The first detection sensor (537) is a photoelectric sensor, an ultrasonic sensor, a visual sensor or a capacitive sensor.

9. The tableware conveying device according to any one of claims 1 to 6, characterized in that: The angle between the central axis of the first detection sensor (537) and the horizontal plane is α, where α satisfies: 10°≤α≤80°.

10. Food dispensing device, characterized in that The invention comprises a housing (1) and a food dispensing device (2) arranged in the housing (1), wherein the housing (1) is provided with a tableware conveying device (5) according to any one of claims 1 to 9, wherein a food dispensing device (2) is provided with a food outlet (21) at the bottom thereof, and the housing (1) is provided with a tableware inlet and outlet (11), and the tableware conveying device (5) further comprises a driving component (52) arranged on a driving frame (53), wherein the driving component (52) comprises a driving motor (521) and a transmission assembly (522), wherein a transmission member (511) is provided on the conveying assembly (51), wherein the transmission assembly (522) is arranged between the driving motor (521) and the transmission member (511) and is respectively connected to the two in a transmission manner, wherein the driving motor (521) can drive the transmission member (511) to move via the transmission assembly (522), so that the conveying assembly (51) can convey tableware back and forth between the tableware inlet and outlet (11) and the food outlet (21).

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