WO2020088124A1

WO2020088124A1 - Box meal vending machine

Info

Publication number: WO2020088124A1
Application number: PCT/CN2019/105699
Authority: WO
Inventors: 王滨; 陈昆嵘; 赖航; 廖欣; 叶志坚; 曾定付
Original assignee: 天津友创宝科技有限公司
Priority date: 2018-10-31
Filing date: 2019-09-12
Publication date: 2020-05-07
Also published as: SG10201909165UA; CN109559434B; CN109559434A

Abstract

A box meal vending machine (1000), comprising: a case body (500) provided with several pickup ports (510); a storage rack (100) provided in the case body (500), the storage rack (100) comprising a plurality of support mechanisms (20) provided at intervals, the support mechanisms (20) each being provided with a plurality of storage units (22); a rotation device (600), comprising a motor and a transmission assembly (620), the motor being able to drive, by means of the transmission assembly (620), the storage rack (100) to rotate; and a detection device (700), comprising a detection element (710) and an induction disc (720), the detection element (710) comprising a first sensor (711) and a second sensor (712) provided at an interval, and the induction disc (720) being rotatable in synchronization with the storage rack (100), the induction disc (720) being provided with a plurality of positioning teeth in the circumferential direction, each positioning tooth being provided corresponding to one of the storage units (22), and the positioning teeth comprising first positioning teeth (721) and second positioning teeth (722), the first positioning teeth (721) being detectable by one of the first sensor (711) and the second sensor (712), and the second positioning teeth (722) being detectable simultaneously by the first sensor (711) and the second sensor (712).

Description

Automatic lunch machine

Technical field

[0001] The present invention relates to the technical field of vending machines, and particularly to an automatic lunch box machine.

Background technique

[0002] The lunch box machine is provided with multiple layers of storage racks, each layer of storage racks can be placed with multiple lunch boxes, and the box body of the lunch box machine is provided with an outlet. Generally, a rotating device is provided on the storage rack to drive the storage rack to rotate so that the packed lunch on the storage rack is aligned with the take-out outlet, so that the packed lunch can be taken out from the aforementioned take-out outlet. However, the defect of the existing lunch box machine is that it is impossible to monitor the rotation position of the storage rack in real time, and it is impossible to judge whether the storage rack is rotated into position, and whether the lunch box on the storage rack is completely removed.

Summary of the invention

technical problem

Solution to the problem

Technical solution

[0003] Based on this, an automatic lunch box machine is provided, which aims to monitor the rotation position of the storage rack in real time.

[0004] An automatic lunch box machine including:

[0005] The box body is provided with several outlets;

[0006] a storage rack is provided in the box body, the storage rack includes a plurality of support mechanisms arranged at intervals, the support mechanism is provided with a plurality of storage units;

[0007] The rotating device includes a motor and a transmission component, and the motor can drive the storage rack to rotate through the transmission component;

[0008] A detection device includes a detection element and an induction disk, the detection element includes a first sensor and a second sensor disposed at intervals, the induction disk can rotate synchronously with the storage rack, and the induction disk is provided along the circumferential direction A plurality of positioning teeth, each of the positioning teeth is corresponding to one of the storage units, the positioning teeth include a first positioning tooth and a second positioning tooth, the first positioning tooth can be used by the first sensor and One of the second sensors detects that the second positioning tooth can be simultaneously detected by the first sensor and the second sensor: [0009] The number of the first positioning teeth is 1, the number of the second positioning teeth is multiple, in the initial state, the first positioning teeth are located in the first sensor or the second sensor Within the detection area, and one of the storage units is aligned with the take-out opening; or,

[0010] The number of the first positioning teeth is plural, and the number of the second positioning teeth is 1, in the initial state, the second positioning teeth are located at the same time as the first sensor and the second In the detection area of the sensor, and one of the storage units is aligned with the take-out opening.

[0011] In the above-mentioned automatic lunch box machine, the rotating device drives the storage rack to rotate, so that one of the storage units is aligned with the outlet, which is convenient for taking out the lunch box placed in the storage unit from the outlet. In the first embodiment, the number of the first positioning teeth is 1, and the number of the second positioning teeth is multiple. In the initial state, the first positioning teeth are located on the first sensor or In the detection area of the second sensor, one of the storage units is aligned with the take-out opening. The induction disk rotates synchronously with the storage rack. When the detection element detects the second positioning tooth, it indicates that the next storage unit has reached the position aligned with the take-out port, and the motor stops running, so that the lunch placed on the storage unit can be taken out Export launch. When the detection assembly detects the first positioning tooth again, it indicates that the rice storage rack has rotated once, that is, all the lunch on the storage unit has been removed.

[0012] In the second embodiment, the number of the first positioning teeth is plural, the number of the second positioning teeth is 1, and in the initial state, the second positioning teeth are simultaneously located on the first A sensor and the second sensor are within the detection area, and one of the storage units is aligned with the takeout. The induction disk rotates synchronously with the storage rack. When the detection assembly detects the first positioning tooth, it indicates that the next storage unit has reached the position aligned with the take-out port, and the motor stops running, so that the lunch placed on the storage unit can be taken out Export launch. When the detection element detects the second positioning tooth again, it indicates that the rice storage rack has rotated once, that is, all the lunch on the storage unit has been removed.

[0013] In one embodiment, the transmission assembly includes a first transmission member and a second transmission member cooperating with each other, the output end of the motor is connected to the first transmission member, the second transmission member and The storage rack is arranged coaxially, a plurality of arc-shaped grooves are formed on the induction disk, and a plurality of connecting members penetrate the arc-shaped groove to fix the induction disk on the second transmission member.

[0014] In one of the embodiments, the first sensor and the second sensor each include an optical signal transmitter and an optical signal receiver disposed oppositely, when the induction disk rotates, the first positioning tooth / The second positioning tooth can selectively block the optical signal emitted by the optical signal transmitter. [0015] In one of the embodiments, the automatic lunch box machine further includes a plurality of liquid guide grooves, a plurality of the liquid guide grooves are provided in the box body, the liquid guide grooves and the storage unit are provided in one-to-one correspondence, The liquid-conducting tank contains a heat-conducting medium for heating the lunch box.

[0016] In one embodiment, the automatic lunch box machine further includes a liquid storage tank and a pump body, the pump body is used to inject the thermally conductive medium in the liquid storage tank into the liquid guide tank.

[0017] In one embodiment, the automatic lunch box machine further includes a lifting device for driving the storage rack up and down, when the lifting device drives the storage rack down, the supporting mechanism can Carrying the lunch box down to make the lunch box immersed in the corresponding liquid-conducting tank; when the lifting device drives the storage rack to rise, the supporting mechanism can carry the lunch box up to make the lunch box Leave the liquid guide tank and face the take-out port.

[0018] In one embodiment, the lifting device includes a first fixed plate, a movable plate, a second fixed plate, a number of support columns, a screw and a driving assembly, the first fixed plate is provided in the box, The plurality of support columns are provided on the first fixed plate, the movable plate is sleeved on the support columns, the second fixed plate is connected to an end of the support column away from the first fixed plate, the The screw is respectively rotatably connected with the first fixed plate and the second fixed plate and is screwed with the movable plate, and the driving assembly is used to drive the screw to rotate to move the movable plate along the support column A lifting rod is connected to the movable plate, and the lifting rod is connected to the storage rack.

[0019] In one of the embodiments, the lifting device further includes a detection assembly, the detection assembly includes two sensing elements and a detection bar, the detection bar is provided on the movable board, the sensing element is provided separately For the first fixed plate and the second fixed plate, the detection bar can follow the movement of the movable plate and enter the detection area of the sensing element.

[0020] In one of the embodiments, the first fixing plate and the box body are an integral structure.

[0021] In one embodiment, the lifting device further includes a limit block, the limit block is provided on the first fixing plate and / or the second fixing plate and sleeved on the support column When the movable board moves into position, the limit block can form a limit to the movable board.

Beneficial effects of invention

Brief description of the drawings

BRIEF DESCRIPTION [0022] FIG. 1 is a schematic structural view of an automatic lunch box machine in an embodiment;

[0023] FIG. 2 is a partial schematic structural view of the automatic box lunch machine shown in FIG. 1 with the door removed;

[0024] FIG. 3 is a schematic structural diagram of a storage rack in the automatic lunch box shown in FIG. 2;

[0025] FIG. 4 is a schematic structural view of a supporting mechanism in the storage rack shown in FIG. 3;

[0026] FIG. 5 is a schematic structural view of a storage unit in the storage rack shown in FIG. 3;

[0027] FIG. 6 is a schematic structural view of a first embodiment of a support structure in the storage rack shown in FIG. 3;

7 is a schematic structural view of a second embodiment of a supporting structure in the storage rack shown in FIG. 3;

[0029] FIG. 8 is a partial structural diagram of the heating device in the automatic lunch box shown in FIG. 2;

[0030] FIG. 9 is a schematic view of the structure of the liquid guiding groove in the heating device shown in FIG. 8;

[0031] FIG. 10 is a schematic structural view of the lifting device in the automatic lunch box shown in FIG. 2;

[0032] FIG. 11 is a schematic structural view of a rotating device and a detecting device in the automatic lunch box machine shown in FIG. 2;

[0033] FIG. 12 is a schematic structural diagram of a first embodiment of an induction disc in the detection device shown in FIG. 11;

[0034] FIG. 13 is a schematic structural view of a second embodiment of an induction disc in the detection device shown in FIG. 11;

[0035] FIG. 14 is a partial schematic structural view of the automatic lunch box shown in FIG. 1;

[0036] FIG. 15 is a schematic view of a partial structure of the automatic lunch box machine shown in FIG. 1 with the box door removed from another perspective;

[0037] FIG. 16 is an enlarged view at A in FIG. 14;

[0038] FIG. 17 is a schematic structural view of an ejection device in the automatic lunch box shown in FIG. 15;

[0039] FIG. 18 is an exploded schematic view of the ejection device shown in FIG. 17.

Invention Example

Embodiments of the invention

[0040] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to related drawings. The drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more comprehensive.

[0041] It should be noted that when an element is referred to as being “fixed” to another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected" to another element, it may be directly connected to another element or there may be a center element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not mean that The only implementation.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terminology used in the description of the present invention herein is for the purpose of describing specific embodiments, and is not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the listed items.

[0043] Referring to FIGS. 1 and 2, the automatic lunch box 1000 includes a storage rack 100, a heating device 300, a lifting device 400, and a box 500. The box 500 is provided with a plurality of outlets 510, and the storage rack 100 is provided in the box 500. The storage rack 100 has a multi-layer support mechanism 20, and the support mechanism 20 is used to place a box lunch. The heating device 300 is provided in the box 500. The heating device 300 includes a plurality of liquid guiding grooves 310, which are arranged corresponding to the supporting mechanism 20-, and the liquid guiding grooves 310 contain a heat conductive medium for heating the lunch box. The lifting device 400 is used to drive the storage rack 100 up and down. When the lifting device 400 drives the storage rack 100 down, the supporting mechanism 20 can carry the lunch box down so that the lunch box is immersed in the corresponding liquid guiding groove 310; when the lifting device 400 drives When the storage rack 100 rises, the supporting mechanism 20 can carry the lunch box up so that the lunch box leaves the liquid guiding tank 310 and faces the take-out port 510, so that the lunch box placed on the holding mechanism 20 is taken out from the take-out port 510.

[0044] In this embodiment, since the automatic lunch box 1000 includes-a correspondingly provided supporting mechanism 20 and liquid guide tank 31

0, the storage rack 100 is driven by the lifting device 400, so that the packed lunch placed in the supporting mechanism 20 is immersed in the heat conduction medium in the liquid guiding groove 310, so as to heat the packed lunch. At the same time, the lifting device 400 can drive the overall movement of the storage rack 100, so that the packed lunch stored in the supporting mechanism 20 is moved to the corresponding outlet 510, which effectively improves the efficiency of taking out the packed lunch and shortens the waiting time of the user.

[0045] Please refer to FIG. 1, the box body 500 has a rectangular parallelepiped structure as a whole, and the box body 500 is provided with a box door 520. It can be understood that a support frame is provided in the box 500, and the liquid guiding groove 310 is fixed on the support frame.

[0046] Please refer to FIGS. 3 and 4, the storage rack 100 includes a central shaft 10 and a plurality of supporting mechanisms 20, a plurality of supporting mechanisms 20 are spaced apart along the axial direction of the central shaft 10, and the supporting mechanism 20 includes a supporting structure 21 And a plurality of storage units 22 provided in the support structure 21, the support structure 21 includes a mounting base 211, a plurality of connecting rods 212 and a load-bearing frame 213, the mounting base 211 is detachably sleeved on the central shaft 10, and the connecting rod 212 is connected to the mounting base at one end 211. The other end is connected to the load-bearing frame 213, and a plurality of connecting rods 212 are distributed radially with the central axis 10 as the center. The storage unit 22 is detachably connected to the load-bearing frame 213. [0047] In the above storage rack 100, since the central shaft 10 and the mounting seat 211 of the support structure 21 are detachably connected, the storage unit 22 is detachably connected with the load-bearing frame 213, so that the storage rack 100 is convenient for disassembly and assembly, and the structure is simplified . When the storage rack 100 is applied to a vending machine, each cargo is stored in an independent storage unit 22, which is helpful for precise control of the shipping process. In addition, the storage rack 100 is a frame structure as a whole, which is lighter in weight. , Easy to install and transport.

[0048] Specifically, the supporting mechanism 20 is arranged at intervals along the axial direction of the central axis 10. The central shaft 10 is a column with a hollow structure, and the connecting rod 212 and the load-bearing frame 213 are aluminum profiles to reduce the total weight of the storage rack 100. Both ends of the connecting rod 212 are welded to the mounting base 211 and the load-bearing frame 213 respectively. To increase the welding strength, both ends of the connecting rod 212 are provided with bending sections, one of which is welded to the surface of the mounting base 211, and the other The bending section is welded on the load-bearing frame 213.

[0049] Referring to FIG. 6, the mounting seat 211 is provided with a mounting hole 211a, and a plurality of connecting members are threaded through the mounting hole 21 a and threaded with the central shaft 10. During the assembly process of the storage unit 22, the mounting base 211 is threaded on the central shaft 10 and slides along the central axis 10 to align the mounting hole 211a with the threaded hole on the central shaft 10, and then the connecting member is threaded through the mounting hole 21 La is screwed to the central shaft 10, so as to realize the detachable connection of the supporting mechanism 20 and the central shaft 10.

[0050] The supporting structure 21 further includes a reinforcing ring 214, and the reinforcing ring 214 is connected to each connecting rod 212 to increase the strength of the supporting structure 21.

[0051] Please refer to FIG. 5, the storage unit 22 includes a plurality of mounting strips 221 and a plurality of supporting strips 222, the supporting strips 222 and the mounting strips 221 are disposed at an angle, the mounting strips 221 and the supporting strips 222 are jointly formed for placing goods The accommodating part of 200. In an embodiment, the storage rack 100 is applied to an automatic lunch box machine 1000, and accordingly, the cargo 200 is a box lunch.

[0052] Further, the angle between the support bar 222 and the mounting bar 221 is 90 °, and the support bar 222 and the mounting bar 221 cross each other to form an accommodating portion where the goods 200 are placed. The storage unit 22 has a frame structure, and its structural strength is sufficient to bear the weight of a single cargo 200. At the same time, the storage unit 22 is light in weight, which is beneficial to reduce the total weight of the storage rack 100. It can be understood that the number of the supporting bars 222 is two or more, the multiple supporting bars 222 are arranged in parallel, and the number of the mounting bars 221 is also two or more, and the multiple mounting bars 221 are arranged in parallel .

[0053] In an embodiment, the accommodating portion may be platform-shaped.

[0054] In other embodiments, the accommodating portion has a semi-open structure, on the one hand, the relative position of the cargo 200 can be fixed On the other hand, it is convenient to put or take out the goods 200. Specifically, the supporting bar 222 includes a main body 2221, a first shielding portion 2222, and a second shielding portion 2223, and the first shielding portion 2222 and the second shielding portion 2223 are bent and disposed at both ends of the main body 2221. The first shielding portion 2222 and the second shielding portion 2223 can clamp and fix the opposite sides of the cargo 200 to prevent the cargo 200 from falling from the storage unit 22 during the rotation of the storage rack 100.

[0055] The distance between the first shielding portion 2222 and the second shielding portion 2223 is greater than or equal to the length or width of the cargo 200.

[0056] The storage unit 22 further includes a limit bar 223 and a cross bar 224, two ends of the cross bar 224 are respectively connected to one of the mounting bars 221, the limit bar 223 includes a connecting end 2231 and a free end 2232 disposed at an angle, The connecting end 2231 is disposed on the cross bar 224, and the free end 2232 is suspended above the main body 2221. When the cargo 200 is placed in the accommodating portion, the free end 2232 bears against the upper surface of the cargo 200. When the goods 200 are placed in the storage unit 22, the limit bar 223 forms a limit to the thickness direction of the goods 200, so as to prevent the goods 200 from falling off the storage unit 22 when the entire storage rack 100 moves along the height direction of the central axis 10.

[0057] It should be noted that, in other embodiments, the cross bar 224 and the support bar 222 have the same structure.

[0058] The storage unit 22 further includes a reinforcement rod 225, the mounting bar 221 includes a hook portion 2211 and a support portion 2212 connected by bending, and one end of the reinforcement rod 225 is connected to the hook portion 2211, and the other end is connected to the support portion 2212. The reinforcing bar 22 5 and the mounting bar 221 form a triangular structure, which serves to fix and strengthen the support, and prevents the storage unit 22 from being deformed due to long-term gravity or pressure after being placed on the load-bearing frame 213.

6, in the first embodiment, the load-bearing frame 213 includes a first supporting body 2131, a second supporting body 21 32 and a plurality of vertical rods 2133, the vertical rods 2133 are provided on the first supporting body 2131 and the second Between supports 2132. Both the first support body 2131 and the second support body 2132 are ring-shaped, and both ends of the vertical rod 2133 are welded to the first support body 2131 and the second support body 2132, respectively. This kind of load-bearing frame 213 is light in weight on the premise of meeting the strength requirements.

[0060] The vertical rod 2133 is provided with a through hole, and the hook portion 2211 is inserted into the through hole. The vertical bar 2133 cooperates with the hook portion 2211 to fix the position of the storage unit 22 and prevent the storage unit 22 from moving on the load-bearing frame 213, which affects the normal operation of the vending machine using the storage rack 100. At the same time, the hook portion 2211 has a certain length, and the hook portion 2211 and the vertical rod 2133 are not easily separated.

[0061] It should be noted that the entire load-bearing frame 213 may be square, circular, or polygonal, and a plurality of storage units 22 are symmetrically distributed on the load-bearing frame 213 in the center. [0062] Please refer to FIG. 7, in the second embodiment, the load-bearing frame 213 is a plate-like structure, and the hook portion 2211 overlaps the edge of the load-bearing frame 213.

[0063] Further, a plurality of limit blocks (not shown) may be provided on the periphery of the load-bearing frame 213, the hook portion 2211 of the storage unit 22 is suspended on the load-bearing frame 213, and two adjacent limit blocks are connected to the storage unit 22 A limit is formed to prevent the storage unit 22 from moving on the load-bearing frame 213.

[0064] Please refer to FIGS. 8 and 9, the heating device 300 further includes a valve assembly 320, the valve assembly 320 includes a plurality of plugs 321, a pull rod 322 and a power element 323, each two adjacent liquid guide grooves 310 are provided between The connecting pipe 330 is provided with a liquid outlet 316 corresponding to the position of the upper end of the connecting pipe 330 of each liquid guide groove 310, a plug 321 is provided at the liquid outlet 316 of each liquid guide groove 310, and the liquid guide groove 310 is provided with a support The plate 311 and the power element 323 are provided on the support plate 311 and connected to the pull rod 322. Each plug 321 is connected to the pull rod 322. The power element 323 can drive the plug 321 to open or block the liquid outlet 316.

[0065] By providing a connecting pipe 330 between two adjacent liquid guiding grooves 310, when the plug 321 opens the liquid outlet 316, the liquid guiding grooves 310 can communicate with each other. When it is necessary to inject the heat conduction medium into the liquid guide groove 310 or discharge the heat conductive medium from the liquid guide groove 310, the power element 323 drives the plug 321 to move upward to open the liquid outlet 316, so that the liquid guide medium can be guided by the liquid guide groove located at the upper part The 310 flows into the liquid guiding tank 310 located at the lower part, which is convenient for filling or discharging liquid, and there is no need to provide a separate pipe for each liquid guiding tank 310. The structure is simple and the installation is quick. In addition, the valve assembly 320 can realize the synchronous control of the discharging process / injecting process of the plurality of liquid guiding tanks 310, and the efficiency is high.

[0066] The power element 323 may be a cylinder or a stepping motor.

[0067] It should be noted that the heating device 300 further includes a liquid storage tank (not shown), the liquid storage tank is disposed below the storage rack 100, and is used to contain the heat conduction medium, and the liquid guiding groove 310 and the liquid storage at the bottom Box connected. In other words, the heat conductive medium can be recovered into the liquid storage tank by the liquid guiding tank 310, and the heat conductive medium can be recycled.

[0068] The liquid outlet 316 is provided on the bottom wall of the liquid guiding tank 310 to ensure that the liquid guiding medium in the liquid guiding tank 310 can be discharged cleanly.

[0069] Please refer to FIG. 9, the supporting plate 311 is provided with a sleeve 312, and the plug 321 is penetrated through the sleeve 312. The plug 321 has a tubular structure, and a flange 321a is formed at the end of the plug 321. On the one hand, when the plug 321 blocks the liquid outlet, the flange 321a bears against the inner wall of the liquid guide groove 310 to prevent the leakage of the heat transfer medium, on the other hand When the plug 321 moves upward, the flange 321a bears against the end of the sleeve 312, forming a stop for the plug 321. In addition, the casing 312 The setting of the stop limits the movement of the plug 321, while ensuring that the stopper 321 remains stable during the movement.

[0070] Further, a screw passes through the plug 321 and is fixed to the pull rod 322, so that the plug 321 and the pull rod 322 are connected.

[0071] Each liquid guiding groove 310 includes a liquid inlet 313 and an overflow pipe 314, the liquid inlet 313 is provided on the support plate 311, the overflow pipe 314 is provided on the bottom wall of the liquid guiding groove 310, the liquid guiding medium can be located from the upper layer The overflow pipe 314 of the liquid guiding tank 310 flows into the liquid guiding tank 310 located at the lower layer through the liquid inlet 313. Understandably, referring to FIG. 8, a pipe 340 is connected between the overflow pipe 314 of the upper-level liquid guiding tank 310 and the liquid inlet 313 of the lower-level liquid guiding tank 310.

[0072] The liquid guide tank 310 at the top communicates with the liquid storage tank, and the heat conduction medium in the liquid storage tank is pumped into the liquid guide tank 310 at the top through the pump body, and then gradually flows into The liquid guide groove 310.

[0073] The overflow pipe 314 of the liquid guiding tank 310 at the bottom is in communication with the liquid storage tank.

[0074] Each liquid guiding groove 310 includes a bottom wall 310a, a first annular side wall 310b and a second annular side wall 310c provided on the bottom wall 310a, the liquid guiding groove 310 is provided with a partition 315, and the partition 315 is in turn Connected to the first annular side wall 310 b, the bottom wall 310 a, and the second annular side wall 310 c, the liquid inlet 313 and the overflow pipe 314 are located on both sides of the partition 315. The above-mentioned setting method makes the heat conducting medium 310 located at the upper layer full, and then the heat conducting medium can flow into the liquid conducting tank 310 located at the lower layer, ensuring that each heat conducting tank 310 can be filled with a sufficient amount of heat conducting medium to carry out the lunch heating.

[0075] In some embodiments, the side wall of the overflow pipe 314 is provided with an overflow hole, the liquid guiding groove 310 further includes an overflow plate 317, and the overflow plate 317 is sequentially connected to the second annular side wall 310c, the bottom wall 310a and the partition 315 And the height of the overflow plate 317 is lower than the height of the partition plate 315. When the liquid level in the liquid guiding groove 310 exceeds the overflow plate 317, the heat transfer medium can flow into the liquid guiding groove 310 located at the lower layer. The liquid tank 310 stores enough heat conduction medium to heat the lunch box. In other embodiments, the height of the overflow pipe 314 is designed to be lower than the height of the partition plate 315. At this time, the overflow pipe 314 does not need to be provided with an overflow hole. When the liquid level in the liquid guiding groove 310 exceeds the overflow pipe 314, the heat transfer medium can It flows into the liquid-conducting tank 310 located in the lower layer.

[0076] Referring to FIG. 10, the lifting device 400 includes a first fixed plate 410, a movable plate 420, a second fixed plate 430, a plurality of support columns 440, a screw 450 and a driving assembly 460, the first fixed plate 410 is provided in the box, Several supports The post 440 is disposed on the first fixed plate 410, the movable plate 420 is sleeved on the support post 440, the second fixed plate 430 is connected to an end of the support post 440 away from the first fixed plate 410, the screw 450 is respectively connected to the first fixed plate 410 and the first The two fixed plates 430 are rotatably connected and threadedly cooperate with the movable plate 420. The driving assembly 460 is used to drive the screw 450 to rotate to move the movable plate 420 along the support column 440. Frame 100. The lifting device 400 is provided on the top of the box. Please refer to FIG. 3 and FIG. 10 together. A central shaft 10 is provided in the middle of the storage rack 100, and the lifting rod 470 is fixedly connected to the central shaft 10.

[0077] Specifically, the driving assembly 460 drives the screw 450 to rotate. Since the screw 450 and the movable plate 420 are threaded, the screw 450 can drive the movable plate 420 to move up and down, and the storage rack 100 is connected to the movable plate 420 through the lifting rod 470 When the movable plate 420 moves up and down, accordingly, the storage rack 100 moves up or down. The support column 440 is used to fix the relative positions of the first fixing plate 410 and the second fixing plate 430, and to guide the movable plate 420. It can be understood that the number of the supporting columns 440 is four, and the four supporting columns 440 are symmetrically disposed on the first fixing plate 410 / the second fixing plate 430.

[0078] The driving assembly 460 includes a first gear 461, a second gear 462, and a rotating electrical machine 463, the first gear 461 and the second gear 462 mesh with each other, the output end of the rotating electrical machine 463 is connected to the first gear 461, the second gear 46 2 Set coaxially with the screw 450. The rotating motor 463 is a geared motor, which can be decelerated when the movable plate 420 is close to ascent or descent, thus preventing an emergency stop from generating large vibrations.

[0079] In an embodiment, the lifting device 400 further includes a detection assembly 480, the detection assembly 480 includes two sensing elements 481 and a detection strip 482, the detection strip 482 is provided on the movable plate 420, the detection strip 482 can follow the movable plate 420 It moves and enters the detection area of the sensing element 481 to determine whether the movable plate 420 moves in place. The two sensing elements 481 are respectively provided on the first fixing plate 410 and the second fixing plate 430. The sensing element 481 is in communication with the controller. When the sensing element 481 detects the in-position signal of the rise or fall of the movable plate 420, the in-position signal is transmitted to the controller, and the controller sends a stop signal to the drive assembly 460 to realize the movable plate The real-time monitoring of the movement status of 420 prevents the movable plate 420 from exceeding the maximum movement range, causing the storage rack 100 to collide with other components in the box 500.

[0080] It should be noted that only one detection bar 482 may be provided, and the projections of the two sensing elements 481 on the top of the box 500 coincide, and the detection bar 482 enters the corresponding sensing element when the movable plate 420 moves upward or downward 481 within the detection area. Alternatively, a detection bar 482 is provided for each sensing element 481.

[0081] The lifting device 400 further includes a limit block 490, the limit block 490 is sleeved on the support column 440, and the limit block 490 Connected to the first fixed plate 410, the second fixed plate 430 or the movable plate 420. When the movable plate 420 is raised and lowered, the limit block 490 is clamped between the first fixed plate 410 and the movable plate 420 (or the second fixed plate 430 and the movable plate 420), which can form a limit to the movable plate 420 and prevent the detection assembly When 480 fails, the movable board 420 exceeds the maximum lifting stroke.

[0082] The sensing element 481 includes an optical signal transmitter and an optical signal receiver disposed oppositely, and the detection bar 482 can block the optical signal emitted by the optical signal transmitter. The area between the optical signal transmitter and the optical signal receiver is the detection area. When the detection strip 482 enters the detection area, the optical signal from the optical signal transmitter is blocked, and the optical signal receiver cannot receive the optical signal. The sensing element 481 obtains the in-position signal of the movable plate 420

[0083] It should be noted that the sensing element 481 may also be a touch sensor or a potentiometer.

[0084] In an embodiment, the first fixing plate 410 and the box body are an integral structure. In other words, the first fixing plate 410 is a part of the box, so that one end of the support column 440 can be directly provided on the box.

[0085] Referring to FIG. 11, the automatic lunch box 1000 further includes a rotating device 600 and a detecting device 700. The rotating device 600 includes a motor and a transmission assembly 620. The motor can drive the storage rack 100 to rotate through the transmission assembly 620. The detection device 700 includes a detection element 710 and an induction disk 720. The detection element 710 includes a first sensor 711 and a second sensor 712 that are spaced apart. The induction disk 720 can rotate synchronously with the storage rack 100. Each positioning tooth corresponds to one of the storage units 22. The positioning teeth include first positioning teeth 721 and second positioning teeth 722, the first positioning teeth 721 can be detected by one of the first sensor 711 and the second sensor 712, and the second positioning teeth 722 can be detected by the first sensor 711 and The second sensor 712 detects at the same time.

[0086] The rotating device 600 drives the storage rack 100 to rotate so that one of the storage units 22 is aligned with the take-out port, so that the lunch box placed in the storage unit 22 is taken out from the take-out port.

[0087] In the first embodiment, please refer to FIG. 12, the number of the first positioning teeth 721 is 1, the number of the second positioning teeth 722 is a plurality, in the initial state, the first positioning teeth 721 is located in the first In the detection area of the sensor 711 or the second sensor 712, one of the storage units 22 is aligned with the outlet 510. The induction disk 720 rotates synchronously with the storage rack 100. When the detection element 710 detects the second positioning tooth 722, it indicates that the next storage unit 22 has reached the position aligned with the take-out port, and the motor stops running, so as to place it in storage The lunch box on the unit 22 is pushed out by the take-out port 510. When the detecting element 710 detects the first positioning tooth 721 again, it indicates that the storage rack 100 has rotated once, that is, all the lunches on the storage unit 22 have been removed.

[0088] In the second embodiment, please refer to FIG. 13, the number of the first positioning teeth 721 is plural, the number of the second positioning teeth 722 is 1, and in the initial state, the second positioning teeth 722 are located at the same time A sensor 711 and a second sensor 712 are within the detection area, and one of the storage units 22 is aligned with the outlet. The induction disk 720 rotates synchronously with the storage rack 100. When the detection element 710 detects the first positioning tooth 721, it indicates that the next storage unit 22 has reached the position aligned with the take-out port, and the motor stops running so as to place it in storage The lunch box on the unit 22 is pushed out by the take-out port 510. When the detecting element 710 detects the second positioning tooth 722 again, it indicates that the storage rack 100 has rotated once, that is, all the lunches on the storage unit 22 have been removed.

[0089] The transmission assembly 620 includes a first transmission member 621 and a second transmission member 622 that mesh with each other, the output end of the motor is connected to the first transmission member 621, the second transmission member 622 is coaxially disposed with the storage rack 100, and the induction disk The 720 is provided with a plurality of arc-shaped grooves 723, and a plurality of connecting members penetrate the arc-shaped groove 723 to fix the sensing plate 720 on the second transmission member. The configuration of the arc-shaped groove 723 facilitates the adjustment of the relative position of the sensing plate 720 and the storage rack 100, so that the positions of the first positioning teeth 721 / second positioning teeth 722 on the sensing plate 720 and the storage unit 22 The location corresponds.

[0090] Each of the first sensor 711 and the second sensor 712 includes an optical signal transmitter and an optical signal receiver disposed oppositely. When the sensing disc 720 rotates, the first positioning tooth 721 / second positioning tooth 722 can selectively block light The optical signal emitted by the signal transmitter.

[0091] Please refer to FIG. 14 and FIG. 15, the automatic lunch box 1000 further includes an ejecting device 800, the ejecting device 800 is provided in the box 500, a cabinet door 511 is hinged above the take-out port 510, and the box is further provided with a supporting plate 530 The pallet 530 is located below the take-out port 510, and the distance between the pallet 530 and the take-out port 510 is greater than or equal to the thickness of the lunch box 200. The ejecting device 800 is used to open the cabinet door 511 and place the lunch box 200 on the storage shelf 100 by The take-out port 510 is pushed out, and when the lunch box 200 is dropped from the take-out port 510 onto the pallet 530, the push-out device 800 is retracted to close the cabinet door 511.

[0092] By providing a pallet 530 below the take-out port 510, and the distance between the pallet 530 and the edge of the take-out port 510 is greater than or equal to the thickness of the lunch box 200, when the lunch box 200 is pushed out by the pushing device 800 and falls out of the take-out port 510 When falling on the pallet 530, regardless of whether the lunch box 200 is removed, the cabinet door 511 can be closed in time, reducing heat exchange between the automatic lunch box machine 1000 and the external environment.

[0093] The presence sensor 531 is provided on the pallet 530, and the presence sensor 531 is used to detect whether the lunch box 200 is located on the pallet 530. The in-position sensor 531 is in communication with the controller of the automatic lunch box 1000. The in-position sensor 531 can transmit the signal that the lunch box 200 falls to the pallet 530 to the controller. The cabinet door 511 is closed.

[0094] Referring to FIG. 16, the automatic lunch box 1000 further includes a plurality of electromagnetic locks 540, the electromagnetic lock 540 includes a latch 541 and a lock hole 542, a latch 541 is provided on one side of the outlet 510, and the cabinet door 511 is provided with a lock When the door 511 is closed to the outlet 510, the latch 541 can selectively extend into the lock hole 542 or exit the lock hole 542.

[0095] As the cabinet door 511 rotates to close the take-out port 510, the lock L542 on the cabinet door 511 will face the latch 541, and the electromagnet inside the electromagnetic lock 540 is in a power-off state, so that the latch 541 can extend And insert it into the lock hole 542 to lock the cabinet door 511. Correspondingly, when the cabinet door 511 needs to be opened, the electromagnet inside the electromagnetic lock 540 is energized and drives the latch 541 to be retracted by the lock hole 542, thereby unlocking the cabinet door 511, at this time, the cabinet door 511 can be rotated to open Take the exit 510.

[0096] The automatic lunch box 1000 further includes a plurality of door status sensors 550, each door status sensor 550 is provided on one side of one of the outlets 510, a sensor piece 551 is provided on the cabinet door 511, when the sensor piece 551 is located on the door When the state sensor 550 is within the detection area, the door state sensor 550 detects the cabinet door 511 closing signal and transmits the cabinet door 511 closing signal to the corresponding electromagnetic lock 540.

[0097] The end of the latch 541 is chamfered to facilitate the alignment of the latch 541 with the lock hole 542.

[0098] Please refer to FIG. 17, the ejection device 800 includes a mounting base 810, a guide 820, a power element 830 and a pushing component 840, the mounting base 810 is provided on the side wall of the box 500, the guide 820 is fixedly connected to the mounting base 810, The power element 830 is disposed on the guide 820, the output end of the power element 830 is connected to the pushing component 840, the pushing component 840 is slidably disposed on the guide 820, when the power component 830 drives the pushing component 840 to move toward the take-out port 510, The assembly 840 is pushed to open the cabinet door 511 and the lunch 200 placed on the storage shelf 100 is pushed out from the take-out port 510.

[0099] The ejection device 800 is installed on the side wall of the box 500 and is disposed toward the take-out port 510. After the user completes the operation such as payment, the power element 830 is activated, and the driving and pushing assembly 840 is driven along the guide 820 toward the take-out port 510 Movement, open the cabinet door 511 and push out the lunch 200. The ejecting device 800 can ensure that the pushing assembly 840 runs smoothly, and prevents the lunch box 200 from being overturned.

[0100] Referring to FIG. 18, the pushing component 840 includes a base 841, a plurality of rolling members 842, a first pushing member 843 and a first Two pushing members 844, the rolling members 842 are symmetrically disposed on both sides of the base 841, the guide member 820 is formed with a guide groove, the rolling member 842 is rollingly disposed in the guide groove, and the first pushing member 843 and the second pushing member 844 are both disposed on the base 841 When the pushing assembly 840 moves toward the take-out port 510, the first pushing member 843 abuts against the cabinet door 511 to open the cabinet door 511, and the second pushing member 844 pushes the lunch box 200 out. Through the arrangement of the first pushing member 843 and the second pushing member 544, the pushing device 840 can realize the actions of opening the cabinet door 511 and pushing out the bento 200.

[0101] Referring to FIG. 17, the ejection device 800 further includes a recovery assembly 850, which is disposed between the guide 820 and the cabinet door 511. The recovery assembly 850 can store energy during the opening of the cabinet door 511 and push When the assembly 840 moves away from the take-out port 510, it is used to drive the cabinet door 511 to close.

[0102] The recovery assembly 850 includes a connected elastic member 851 and a transmission member 852, and the transmission member 852 is provided with a first limiting block 853 and a second limiting block 854 at intervals, and the ejecting device 800 further includes a stop block 860, a stop block 860 It is located between the first limit block 853 and the second limit block 854, and is used to limit the movement range of the transmission member 852. Specifically, when the stop block 860 is held by the second limit block 854, the cabinet door 511 is opened; when the stop block 860 is held by the first limit block 853, the cabinet door 511 is closed.

[0103] The technical features of the above-described embodiments can be arbitrarily combined. To simplify the description, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as the combination of these technical features is not If there are contradictions, they should all be regarded as the scope of this specification.

[0104] The above-mentioned embodiments only express several embodiments of the present invention, and their descriptions are more specific and detailed, but they should not be construed as limiting the patent scope of the invention. For those of ordinary skill in the art, without departing from the concept of the present invention, a number of modifications and improvements can be made, all of which fall within the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims

[Claim 1] An automatic lunch box machine, characterized by comprising:

Box body, with a take-out port;

A storage rack is provided in the box body, the storage rack includes a plurality of support mechanisms arranged at intervals, and the support mechanism is provided with a plurality of storage units;

The rotating device includes a motor and a transmission component, and the motor can drive the storage rack to rotate through the transmission component;

A detection device includes a detection element and an induction disk. The detection element includes a first sensor and a second sensor arranged at intervals. The induction disk can rotate synchronously with the storage rack. The induction disk is provided with a plurality of positions along the circumferential direction Each positioning tooth is corresponding to one of the storage units, the positioning tooth includes a first positioning tooth and a second positioning tooth, the first positioning tooth can be used by the first sensor and the first One of the two sensors detects that the second positioning tooth can be simultaneously detected by the first sensor and the second sensor:

The number of the first positioning teeth is 1, and the number of the second positioning teeth is multiple, and in the initial state, the first positioning teeth are located in the detection area of the first sensor or the second sensor Inside, and one of the storage units is aligned with the take-out port; or,

The number of the first positioning teeth is plural, and the number of the second positioning teeth is 1, in the initial state, the second positioning teeth are located at the detection of the first sensor and the second sensor at the same time Within the area, and one of the storage units is aligned with the fetching opening.

[Claim 2] The automatic lunch box machine according to claim i, wherein the transmission assembly includes a first transmission member and a second transmission member that cooperate with each other, and an output end of the motor is connected to the first A transmission member, the second transmission member is coaxially arranged with the storage rack, a plurality of arc grooves are formed on the induction disk, and a plurality of connection members are penetrated through the arc groove to fix the induction disk to the On the second transmission member.

[Claim 3] The automatic lunch box machine according to claim i, wherein the first sensor and the second sensor each include an optical signal transmitter and an optical signal receiver disposed oppositely, when the sensor plate When rotating, the first positioning tooth / the second positioning tooth can be selectively Blocking the optical signal emitted by the optical signal transmitter.

[Claim 4] The automatic lunch box machine according to claim 1, wherein the automatic lunch box machine further includes a plurality of liquid guide grooves, a plurality of the liquid guide grooves are provided in the box body, and the liquid guide grooves One-to-one correspondence with the storage units is provided, and the liquid-conducting tank contains a heat-conducting medium for heating the lunch box.

[Claim 5] The automatic lunch box machine according to claim 4, characterized in that the automatic lunch box machine further comprises a liquid storage tank and a pump body, the pump body is used for transferring heat conduction medium in the liquid storage tank Inject into the liquid guide tank.

[Claim 6] The automatic lunch box machine according to claim 4, wherein the automatic lunch box machine further comprises a lifting device for driving the storage rack to move up and down, when the lifting device drives the storage box When the rack is lowered, the supporting mechanism can carry the lunch box to move down so that the lunch box is immersed in the corresponding liquid guiding tank; when the lifting device drives the storage rack to rise, the supporting mechanism can carry the The lunch box is moved upward so that the lunch box leaves the liquid guide tank and faces the take-out port.

[Claim 7] The automatic lunch box machine according to claim 6, wherein the lifting device includes a first fixed plate, a movable plate, a second fixed plate, a plurality of support columns, a screw, and a drive assembly, and the first A fixed plate is arranged on the box body, the plurality of support columns are arranged on the first fixed plate, the movable plate is sleeved on the support column, and the second fixed plate is connected to the support column away from One end of the first fixing plate, the screw is rotatably connected with the first fixing plate and the second fixing plate respectively and is screwed with the movable plate, and the driving assembly is used to drive the screw to rotate to make The movable plate moves up and down along the support column, the movable plate is connected with a lifting rod, and the lifting rod is connected to the storage rack.

[Claim 8] The automatic lunch box machine according to claim 7, wherein the lifting device further comprises a detection component, the detection component comprises two sensing elements and a detection bar, the detection bar is provided in the On the movable plate, two of the sensing elements are respectively provided on the first fixed plate and the second fixed plate, and the detection bar can follow the movement of the movable plate and enter the detection area of the sensing element.

[Claim 9] The automatic lunch box machine according to claim 7, wherein the first fixing plate and The box body is an integrated structure.

[Claim 10] The automatic lunch box machine according to claim 7, wherein the lifting device further comprises a limit block, the limit block is provided on the first fixing plate and / or the second The fixed plate is sleeved on the support column, and when the movable plate moves into position, the limiting block can form a limit to the movable plate.