Lunch box clamping device and food selling cabinet

Abstract

The invention relates to the field of food selling cabinets, in particular to a meal box clamping device and a food selling cabinet. The movable clamping mechanism is arranged below the fixed clamping mechanism; the movable clamping mechanism comprises a plurality of elastic clamping assemblies which are arranged along the edge of the meal box at intervals, and the elastic clamping assemblies are used for bearing the edge of the meal box; the first driving mechanism is used for driving the movable clamping mechanism supporting the meal box to move upwards to a first position; when the movable clamping mechanism is located at the first position, the fixed clamping mechanism abuts against at least one part of the edge of the meal box, and the elastic clamping assemblies are independently compressed downwards under the action of the fixed clamping mechanism, so that the meal box is clamped. The clamping reliability can be improved, the lunch box is prevented from falling off and deforming, and the user experience feeling is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of food vending cabinets, and in particular to a lunch box clamping device and a food vending cabinet. Background Art

[0002] In existing food vending cabinets, lunch boxes are usually clamped by lunch box clamping devices before transportation or subsequent processing such as film tearing. Existing lunch box clamping devices often use clamping claws to clamp lunch boxes, but this clamping method has low reliability and there may be a risk of lunch boxes falling off the clamping claws. In addition, if the lunch box is made of soft material, there may also be a problem of the lunch box being deformed by the clamping claws, which seriously affects the user experience. Summary of the invention

[0003] The present application provides a lunch box clamping device and a food vending cabinet, which can improve the clamping reliability, prevent the lunch box from falling off and deforming, and effectively improve the user experience.

[0004] In a first aspect, the lunch box clamping device provided by the present application comprises:

[0005] Fixed clamping mechanism;

[0006] A movable clamping mechanism is disposed below the fixed clamping mechanism; the movable clamping mechanism comprises a plurality of elastic clamping components spaced apart along the edge of the lunch box, the plurality of elastic clamping components being used to support the edge of the lunch box; and

[0007] A first driving mechanism, used for driving the movable clamping mechanism supporting the lunch box to move upward to a first position;

[0008] Wherein, when the movable clamping mechanism is in the first position, the fixed clamping mechanism abuts against at least a portion of the edge of the lunch box and each of the elastic clamping components is independently compressed downward under the action of the fixed clamping mechanism, thereby clamping the lunch box.

[0009] In some embodiments, the elastic clamping assembly includes a first clamping member and a fixing member which are vertically arranged in sequence in a direction away from the edge of the lunch box; the fixing member is fixedly connected to the movable clamping mechanism, and the first clamping member is used to abut against the lower surface of the edge of the lunch box;

[0010] The elastic clamping assembly also includes an elastic member which is sleeved outside the fixing member and abuts between the first clamping member and the fixing member.

[0011] In some embodiments, the lunch box is square, and the edge of the lunch box includes four sides;

[0012] The four sides include two first sides arranged opposite to each other in a first direction, and two second sides arranged opposite to each other in a second direction, and the first direction, the second direction and the vertical direction are perpendicular to each other;

[0013] The elastic clamping assembly is divided into a first elastic clamping assembly supported at the lower end of the first side and a second elastic clamping assembly supported at the lower end of the second side;

[0014] The movable clamping mechanism comprises a first movable clamping component and a second movable clamping component, the first movable clamping component is arranged corresponding to one of the first side edges, a plurality of the first elastic clamping components are arranged at the upper end of the first movable clamping component, there are two second movable clamping components and they are arranged one-to-one corresponding to the two second side edges, and a plurality of the second elastic clamping components are arranged at the upper end of each second movable clamping component;

[0015] The first movable clamping assembly is used to position the lunch box in the first direction, and the two second movable clamping assemblies can move toward each other along the second direction to position the lunch box in the second direction.

[0016] In some embodiments, the movable clamping mechanism further includes a positioning assembly;

[0017] The first movable clamping assembly and the second movable clamping assembly are respectively provided with the positioning assembly;

[0018] The fixing clamping mechanism is provided with a positioning hole which is plugged and matched with the positioning component.

[0019] In some embodiments, the lunch box clamping device further comprises:

[0020] frame;

[0021] A first sliding connection mechanism, used for slidingly connecting the first movable clamping assembly and the frame;

[0022] A second sliding connection mechanism, used for slidingly connecting the corresponding second movable clamping assembly and the frame; and

[0023] The second driving mechanism is arranged on the frame and is used for driving the two second movable clamping assemblies to move toward or away from each other in the second direction.

[0024] In some embodiments, the first driving mechanism is disposed on the frame, and is used to drive the first movable clamping assembly and the second movable clamping assembly to move synchronously in the vertical direction, and the output end of the first driving mechanism is connected to the first movable clamping assembly;

[0025] The movable clamping mechanism also includes a limiting assembly, which includes a first limiting member and two second limiting members, wherein the first limiting member is fixed to the first movable clamping assembly, and each second limiting member is respectively fixed to the corresponding second movable clamping assembly and is respectively slidably connected to the first limiting member in the second direction.

[0026] In some embodiments, the first driving mechanism comprises:

[0027] A first driving member, fixed to the frame;

[0028] A first transmission wire rod, fixed to the output end of the first driving member; and

[0029] A first output member, transmission-connected to the first transmission wire rod and fixed to the first movable clamping assembly;

[0030] The first driving member is used to drive the first transmission wire rod to rotate around a first axis parallel to the vertical direction, so that the first movable clamping assembly and the second movable clamping assembly move synchronously in the vertical direction.

[0031] In some embodiments, the second driving mechanism comprises:

[0032] A second driving member, fixed to the frame;

[0033] A second transmission wire rod, fixed to the output end of the second driving member; and

[0034] Second output members are arranged one by one corresponding to the second sliding connection mechanisms, one end of each second output member is transmission-connected to the second transmission wire rod, and the other end is fixed to the corresponding second sliding connection mechanism;

[0035] The second driving member is used to drive the second transmission wire rod to rotate around a second axis parallel to the second direction, so that the two second movable clamping components move toward each other or away from each other in the second direction.

[0036] In some embodiments, the lunch box is a sealed lunch box, and a sealing film for sealing the lunch box is provided at the upper end of the lunch box, and the sealing film includes a main body and a tearing portion protruding from the edge of the main body;

[0037] The fixed clamping mechanism includes a fixed clamping member, which has a first hollow portion and a second hollow portion connected to the first hollow portion, the first hollow portion and the second hollow portion penetrate the fixed clamping member in a vertical direction, the main body is exposed in the first hollow portion, and the tearing portion is exposed in the second hollow portion.

[0038] In a second aspect, the food vending cabinet provided in the present application includes a lunch box clamping device as described in any embodiment of the first aspect.

[0039] Based on the above technical solution, each elastic clamping component can be compressed downward independently under the action of the fixed clamping mechanism, so as to clamp the corresponding points on the edge of the lunch box. No matter whether the edge of the lunch box is flat or uneven, the movable clamping mechanism in the first position cooperates with the fixed clamping mechanism to clamp the edge of the lunch box. It is not only suitable for clamping the edges of lunch boxes of various shapes, but also can prevent the lunch boxes from being deformed by being clamped, and can improve the clamping reliability, prevent the lunch boxes from falling off, and effectively improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the structure of the lunch box clamping device according to an embodiment of the present application;

[0041] Figure 2 for Figure 1 A schematic diagram of the lunch box clamping device from another perspective shown;

[0042] Figure 3 This is an exploded view of the lunch box clamping device according to an embodiment of the present application;

[0043] Figure 4 This is a partial structural schematic diagram of a lunch box clamping device according to an embodiment of the present application;

[0044] Figure 5 This is a schematic diagram of the lunch box clamping device in use according to an embodiment of the present application;

[0045] Figure 6 for Figure 5 The lunch box clamping device is shown in another perspective schematic diagram, in which only part of the fixing clamping mechanism is shown;

[0046] Figure 7 for Figure 6 A schematic diagram of the lunch box clamping device from another perspective shown;

[0047] Figure 8 for Figure 6 A front view of the lunch box clamping device shown;

[0048] Fig. 9 for Figure 8 A top view of

[0049] Fig.10 for Fig. 9 A partial structural schematic diagram of a lunch box clamping device shown;

[0050] Fig.11 for Fig.10 A schematic diagram of the lunch box clamping device from another perspective shown;

[0051] Fig.12 for Fig.10 AA section view;

[0052] Fig.13 Schematic diagram of the structure of the lunch box film tearing device in the embodiment of the present application, wherein the clamping assembly is in the second position;

[0053] Fig.14 Schematic diagram of the structure of the lunch box film tearing device in the embodiment of the present application, wherein the clamping assembly is in the second position and the moving assembly is not shown;

[0054] Fig.15 for Fig.14 Another perspective structural schematic diagram of the lunch box film tearing device shown;

[0055] Fig.16 for Fig.14 A schematic diagram of a portion of the structure of a clamping assembly in a lunch box film tearing device is shown;

[0056] Fig.17 for Fig.14 An exploded view of a lunch box film tearing device is shown;

[0057] Fig.18 This is a schematic diagram of the first state of the lunch box film tearing device in the embodiment of the present application, wherein the clamping assembly is in the second position;

[0058] Fig.19 This is a schematic diagram of the second state of the lunch box film tearing device in the embodiment of the present application, in which only part of the lunch box clamping device is shown;

[0059] Fig. 20 for Fig.19 Schematic diagram of the local structure;

[0060] Fig.21 This is a schematic diagram of the third state of the lunch box film tearing device in the embodiment of the present application, wherein the clamping assembly is in the third position;

[0061] Fig. 22 for Fig.21 The schematic diagram of the structure of the lunch box film tearing device shown, wherein the moving components are not shown;

[0062] Fig.23 for Fig.21 The schematic diagram of the film sealing structure in the film tearing device for a lunch box is shown;

[0063] Wherein: 100a-lunch box clamping device (1-fixed clamping mechanism (101-positioning hole (101a-first positioning hole, 101b-second positioning hole), 102-fixed clamping member (1021-first hollowing part, 1022-second hollowing part)), 2-movable clamping mechanism (201-elastic clamping assembly (201a-first elastic clamping assembly, 201b-second elastic clamping assembly, 2011-first clamping member (20111-body, 20112-first clamping part), 2012-fixing member (20121-rod, 20122-flange), 2013-elastic member, 2014-sleeve member), 202-first movable clamping assembly (2021-guide hole), 203-second 2. Movable clamping components, 204-positioning components (204a-first positioning components, 204b-second positioning components), 205-limiting components (2051-first limiting components (20511-first limiting holes), 2052-second limiting components)), 3-first driving mechanism (301-first driving member, 302-first transmission screw rod, 303-first output member), 5-frame, 6-first sliding connection mechanism (601-first slide rail member, 602-first slider member), 7-second sliding connection mechanism (701-second slide rail member, 702-second slider member, 703-connecting plate member, 704-third slide rail member, 705-third slider member), 8-second driving mechanism (801-second driving member , 802-second transmission screw rod, 803-second output member)), 4-lunch box (401-edge (4011-first side, 4012-second side)), 9-sealing film (901-main body, 902-tearing part, 903-positioning hole), 100b-lunch box film tearing device (10-movement component (1001-first movement module, 1002-second movement module, 1003-third movement module), 11-clamping component (1101-base member (11011-second limiting hole (110111-first end, 110112-second end)), 1102-second clamping member (11021-second clamping part (110211-first clamping surface), 11022-first pressing plate part , 11023-first vertical arm, 11024-locking part), 1103-third clamping member (11031-third clamping part, 11032-second pressure plate part, 11033-second vertical arm, 11034-second bending arm), 1104-third driving member (11041-first driving part, 11042-first transmission screw part, 11043-first output part), 1105-fourth slide rail member, 1106-fourth slider member, 1107-third limiting member (11071-fixing part, 11072-elastic limiting part, 11073-guiding part, 11074-fixed limiting part), 1108-fourth limiting member, 1109-fifth slide rail member, 1110-fifth slider member),12-swing connection assembly (1201-bearing seat, 1202-bearing member, 1203-rotating shaft member, 1204-elastic connection member (1204a-first elastic connection member, 1204b-second elastic connection member), 1205-first fixed connection member, 1206-second fixed connection member, 1207-swing limit member), 13a-first straight line, 13b-second straight line, 13c-third straight line, 14-fixed assembly (1401-first fixed plate member (14011-first assembly hole, 14012-second assembly hole), 1402-second fixed plate member)). DETAILED DESCRIPTION

[0064] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application 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 understanding of the disclosure of the present application more thorough and comprehensive.

[0065] 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 be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0067] Please refer to Figures 1 to 12 The lunch box clamping device 100a in the embodiment of the present application includes a fixed clamping mechanism 1, a movable clamping mechanism 2 and a first driving mechanism 3. The movable clamping mechanism 2 is arranged below the fixed clamping mechanism 1, and the movable clamping mechanism 2 includes a plurality of elastic clamping components 201, all of which are arranged at intervals along the edge 401 of the lunch box 4, and all of the elastic clamping components 201 are used together to support the edge 401 of the lunch box 4. The first driving mechanism 3 can be used to drive the movable clamping mechanism 2 supporting the lunch box 4 to move upward to the first position. When the movable clamping mechanism 2 is in the first position, the fixed clamping mechanism 1 abuts against at least a portion of the edge 401 of the lunch box 4, and each elastic clamping component 201 is independently compressed downward under the action of the fixed clamping mechanism 1, thereby clamping the lunch box 4.

[0068] In the embodiment of the present application, the movable clamping mechanism 2 includes a plurality of independent elastic clamping components 201. Under the action of the fixed clamping mechanism 1, each elastic clamping component 201 can be compressed downward independently, thereby clamping the corresponding point of the edge 401 of the lunch box 4. Regardless of whether the edge 401 of the lunch box 4 is flat or uneven, the movable clamping mechanism 2 in the first position cooperates with the fixed clamping mechanism 1 to clamp the edge 401 of the lunch box 4. This is not only suitable for the edges 401 of lunch boxes 4 of various shapes, but can also prevent the lunch box 4 from being deformed by being clamped, and can also improve the clamping reliability, prevent the lunch box 4 from falling off, and effectively improve the user experience.

[0069] In some embodiments, please refer to Figure 3 The elastic clamping assembly 201 includes a first clamping member 2011, a fixing member 2012 and an elastic member 2013. The first clamping member 2011 and the fixing member 2012 are vertically arranged in sequence in a direction away from the edge 401 of the lunch box 4. The fixing member 2012 is fixedly connected to the movable clamping mechanism 2, the first clamping member 2011 is used to abut against the lower surface of the edge 401 of the lunch box 4, the elastic member 2013 is sleeved outside the fixing member 2012, and the elastic member 2013 abuts between the first clamping member 2011 and the fixing member 2012.

[0070] In this embodiment, under the action of the elastic member 2013, the first clamping member 2011 can abut against the lower surface of the edge 401 of the lunch box 4, and the elastic member 2013 of each elastic clamping component 201 can be compressed and reset independently without affecting each other, effectively ensuring that each elastic clamping component 201 can be independently compressed downward to clamp the corresponding point of the edge 401 of the lunch box 4 under the action of the fixed clamping mechanism 1, thereby firmly clamping the lunch box 4.

[0071] In some embodiments, please refer to Fig.12 The first clamping member 2011 includes a body 20111 and a plurality of first clamping parts 20112, each of which is convexly arranged on the upper end of the body 20111, and each of which is respectively in contact with the lower surface of the edge 401 of the lunch box 4. Each elastic clamping assembly 201 may include a plurality of elastic members 2013 and a plurality of fixing members 2012, the fixing members 2012 and the first clamping parts 20112 are arranged one by one in the vertical direction, and the elastic members 2013 are sleeved outside the corresponding fixing members 2012 and are in contact between the body 20111 and the corresponding fixing members 2012. It can be understood that such an embodiment can enhance the overall structural strength of the elastic clamping assembly 201, so that the elastic clamping assembly 201 can be compressed vertically downward as stably as possible under force, thereby improving the reliability of use; at the same time, the contact area between the elastic clamping assembly 201 and the edge 401 of the lunch box 4 is increased, thereby improving the clamping reliability.

[0072] For example, please refer to Fig.12 The first clamping member 2011 includes a body 20111 and two first clamping parts 20112. The two first clamping parts 20112 are respectively convexly arranged on the upper end of the body 20111, and the two first clamping parts 20112 are symmetrically arranged about the body 20111, and each first clamping part 20112 is respectively abutted against the lower end of the edge 401 of the lunch box 4. The elastic clamping member includes two fixing members 2012 and two elastic members 2013, the two fixing members 2012 are symmetrically arranged about the first clamping member 2011 and are arranged one by one with the first clamping parts 20112, the elastic members 2013 are sleeved outside the corresponding fixing members 2012, and abut between the body 20111 and the corresponding fixing members 2012, and the two first clamping parts 20112 can respectively clamp the corresponding points of the edge 401 of the lunch box 4, further improving the clamping reliability.

[0073] In some embodiments, please refer to Figure 4 The lunch box 4 is square, and the edge 401 of the lunch box 4 includes four sides. It should be noted that the square described here should be understood in a broad sense, that is, the lunch box 4 is square in general. Simply put, the lunch box 4 gives people a square setting at first glance. Among them, the elastic clamping component 201 is set corresponding to at least two of the oppositely arranged sides, so as to ensure the clamping reliability. It should be noted that in other embodiments, the lunch box 4 can also be of other shapes, which can be set according to actual conditions, and will not be repeated here.

[0074] As an implementation, please refer to Figure 4 The four sides include two first sides 4011 and two second sides 4012, the two first sides 4011 are arranged opposite to each other in a first direction, and the two second sides 4012 are arranged opposite to each other in a second direction, wherein the first direction, the second direction and the vertical direction are perpendicular to each other.

[0075] like Figure 3 As shown, in the movable clamping mechanism 2, the elastic clamping component 201 is divided into a first elastic clamping component 201a and a second elastic clamping component 201b. The first elastic clamping component 201a is supported at the lower end of the first side 4011, and the second elastic clamping component 201b is supported at the lower end of the second side 4012. Based on this, the movable clamping mechanism 2 also includes a first movable clamping component 202 and a second movable clamping component 203.

[0076] There is one first movable clamping assembly 202, and the first movable clamping assembly 202 is arranged corresponding to one of the first side edges 4011, so a plurality of first elastic clamping assemblies 201a are arranged at the upper end of the first movable clamping assembly 202. There are two second movable clamping assemblies 203, and the two second movable clamping assemblies 203 are arranged one-to-one corresponding to the two second side edges 4012, so a plurality of second elastic clamping assemblies 201b are arranged at the upper end of each second movable clamping assembly 203. The first movable clamping assembly 202 is used to position the lunch box 4 in the first direction, and the two second movable clamping assemblies 203 can move toward each other along the second direction to position the lunch box 4 in the second direction.

[0077] As an example, when in use, the first side edge 4011 of the lunch box 4 can be placed on the first elastic clamping component 201a to achieve the positioning of the lunch box 4 in the first direction. Then, the two second movable clamping components 203 are moved toward each other along the second direction until the two second side edges 4012 of the lunch box 4 are placed on the corresponding second elastic clamping components 201b, thereby achieving the positioning of the lunch box 4 in the second direction. Please refer to Figure 4 Then, the movable clamping mechanism 2 supporting the lunch box 4 is driven to move upward to the first position, so that the fixed clamping mechanism 1 and the movable clamping mechanism 2 cooperate to clamp the edge 401 of the lunch box 4. Please refer to Figures 5 to 9 .

[0078] In this embodiment, the structure of the first elastic clamping component 201a and the structure of the second elastic clamping component 201b may be the same, and the following description will be made taking the first elastic clamping component 201a as an example.

[0079] For some examples, see Fig.12 The first movable clamping component 202 is provided with a guide hole 2021 corresponding to the fixing component 2012. The fixing component 2012 includes a rod portion 20121 and a flange portion 20122 connected in one piece, and the flange portion 20122 is protruded from the lower end of the rod portion 20121. The upper end of the rod portion 20121 passes through the guide hole 2021 and is fixed to the first clamping component 2011, and the flange portion 20122 is restricted outside the guide hole 2021. The elastic member 2013 is sleeved on the rod portion 20121 and is compressed between the first clamping component 2011 and the first movable clamping component 202. In this example, the fixing member 2012 can also guide the first clamping member 2011 so that the first clamping member 2011 can move more stably in the vertical direction, thereby making the structure of the first elastic clamping component 201a more stable and can more stably and effectively clamp the corresponding point of the edge 401 of the lunch box 4.

[0080] For an example, see Figure 3 and Fig.12The first elastic clamping assembly 201a may further include a sleeve member 2014, which is confined in the guide hole 2021 and sleeved outside the rod portion 20121, thereby effectively reducing the friction between the rod portion 20121 and the first movable clamping assembly 202 and extending the service life of the first movable clamping assembly 202.

[0081] It should be noted that, in other embodiments, the first elastic clamping component 201a and the second elastic clamping component 201b may also be other structures, and the structure of the first elastic clamping component 201a and the structure of the second elastic clamping component 201b may also be different, and can be set according to actual conditions, which will not be elaborated here.

[0082] In some embodiments, please refer to Figure 3 , Figure 4 and Fig. 9 The movable clamping mechanism 2 further includes a positioning component 204. The first movable clamping component 202 may be provided with a positioning component 204, and the second movable clamping component 203 may also be provided with a positioning component 204. The fixed clamping mechanism 1 is provided with a positioning hole 101, and the positioning hole 101 is plugged and matched with the corresponding positioning component 204.

[0083] When the movable clamping mechanism 2 moves to the first position, the positioning component 204 is just inserted into the corresponding positioning hole 101, and the positioning component 204 on the first movable clamping component 202 can abut against the edge of the lunch box 4 in the first direction, and the positioning component 204 of the second movable clamping component 203 can abut against the edge of the lunch box 4 in the second direction. This not only improves the matching accuracy of the movable clamping mechanism 2 and the fixed clamping mechanism 1, so that the movable clamping mechanism 2 and the fixed clamping mechanism 1 can more effectively cooperate to clamp the edge 401 of the lunch box 4, but also improves the positioning accuracy of the lunch box 4 on the lunch box clamping device 100a.

[0084] As an implementation, please refer to Figure 4 as well as Figures 9 to 11, the positioning component 204 is divided into a first positioning component 204a and a second positioning component 204b, and the positioning hole 101 is divided into a first positioning hole 101a and a second positioning hole 101b. Among them, the first positioning component 204a is fixed to the upper end of the first movable clamping component 202, and two first positioning components 204a are arranged on the first movable clamping component 202, and the two first positioning components 204a are symmetrically arranged in the second direction, and the fixed clamping mechanism 1 is provided with a first positioning hole 101a that is plugged and matched with the first positioning component 204a in a one-to-one correspondence. The second positioning component 204b is fixed to the upper end of the second movable clamping component 203, and two second positioning components 204b are arranged on each second movable clamping component 203, and the two second positioning components 204b are symmetrically arranged in the first direction, and the fixed clamping mechanism 1 is provided with a second positioning hole 101b that is plugged and matched with the second positioning component 204b in a one-to-one correspondence. This embodiment can not only further improve the matching accuracy of the movable clamping mechanism 2 and the fixed clamping mechanism 1, but also the first positioning component 204a can reliably position the lunch box 4 in the first direction, and the second positioning component 204b can reliably position the lunch box 4 in the second direction, further improving the positioning accuracy of the lunch box 4 on the lunch box clamping device 100a, and making it more convenient for subsequent precise operations such as film tearing.

[0085] As an example, please refer to Fig. 9 The second positioning hole 101b can be an elongated hole penetrating the fixed clamping mechanism 1 in the vertical direction, and the second positioning hole 101b extends along the second direction, so that the lunch box clamping device 100a can be suitable for clamping lunch boxes 4 of different sizes, and is more flexible to use.

[0086] In some embodiments, please refer to Figures 1 to 11, the lunch box clamping device 100a also includes a frame 5, a first sliding connection mechanism 6, a second sliding connection mechanism 7 and a second driving mechanism 8. The fixed clamping mechanism 1 is fixed to the frame 5, and the first sliding connection mechanism 6 is used to slide and connect the first movable clamping assembly 202 and the frame 5. Under the action of the first sliding connection mechanism 6, the first movable clamping assembly 202 can move relative to the frame 5 in the vertical direction. There are two second sliding connection mechanisms 7, and the two second sliding connection mechanisms 7 are arranged one by one with the two second movable clamping assemblies 203. Each second sliding connection mechanism 7 is used to slide and connect the corresponding second movable clamping assembly 203 and the frame 5. Under the action of the second sliding connection mechanism 7, the second movable clamping assembly 203 can move relative to the frame 5 in the vertical direction and the second direction. The second driving mechanism 8 is arranged on the frame 5, and the second driving mechanism 8 can be used to drive the two second movable clamping assemblies 203 to move toward each other in the second direction, so as to position the lunch box 4 in the second direction. The second driving mechanism 8 can also be used to drive the two second movable clamping assemblies 203 to move away from each other in the second direction, so as to release the lunch box 4.

[0087] In this embodiment, a second driving mechanism 8 can be used to simultaneously drive the two second movable clamping components 203 to move toward or away from each other in the second direction. The structure is simpler, the driving mechanism is reduced, and the structural complexity of the lunch box clamping device 100a is reduced. At the same time, the space occupied by the lunch box clamping device 100a can be reduced, which is more conducive to the miniaturization of the lunch box clamping device 100a.

[0088] As an implementation, please refer to Figures 1 to 11 The second driving mechanism 8 includes a second driving member 801, a second transmission wire rod 802 and a second output member 803. The second driving member 801 is fixed to the frame 5, and the second transmission wire rod 802 is fixed to the output end of the second driving member 801. There are two second output members 803, and the two second output members 803 are arranged in a one-to-one correspondence with the two second sliding connection mechanisms 7. One end of the second output member 803 in the first direction is transmission-connected to the second transmission wire rod 802, and the other end of the second output member 803 in the first direction is fixed to the corresponding second sliding connection mechanism 7. The second driving member 801 can drive the second transmission wire rod 802 to rotate around the second axis, so that the two second output members 803 move toward or away from each other in the second direction, thereby driving the two second movable clamping assemblies 203 to move toward or away from each other through the two second sliding connection mechanisms 7. Among them, the second axis is the axis of the second transmission wire rod 802 itself, and the second axis is parallel to the second direction.

[0089] As an example, the second driving member 801 may be a motor, and the second output member 803 may be a screw nut. It should be noted that in other embodiments, the second driving mechanism 8 may also be other structures, which may be configured according to actual conditions, and will not be described in detail here.

[0090] As an implementation, please refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 and Fig.11 The first sliding connection mechanism 6 includes a first slide rail member 601 and a first slider member 602. The first slide rail member 601 is fixed to the frame 5, and the first slide rail member 601 extends in the vertical direction. The first slider member 602 is fixed to the first movable clamping assembly 202, and the first slider member 602 is slidably connected to the first slide rail member 601. Under the action of the first driving mechanism 3, the first slider member 602 can slide in the vertical direction on the first slide rail member 601, thereby realizing the sliding connection between the first movable clamping assembly 202 and the frame 5 in the vertical direction.

[0091] As an implementation, please refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 and Fig.11 , the second sliding connection mechanism 7 includes a second slide rail member 701, a second slider member 702, a connecting plate member 703, a third slide rail member 704 and a third slide rail member 705. Among them, the second slide rail member 701 is fixed to the frame 5, and the second slide rail member 701 extends along the second direction. The second slider member 702 is slidably connected to the second slide rail member 701, and the second slider member 702 is fixedly connected to the third slide rail member 704 through the connecting plate member 703, and the third slide rail member 704 extends along the vertical direction. The third slider member 705 is fixed to the second movable clamping assembly 203, and the third slider member 705 is slidably connected to the third slide rail member 704. In this embodiment, the second output member 803 of the second driving mechanism 8 is fixed to the connecting plate member 703, and under the action of the second driving mechanism 8, the second slider member 702 can move along the second direction on the second slide rail member 701, thereby realizing the sliding connection between the second movable clamping assembly 203 and the frame 5 in the second direction. Under the action of the first driving mechanism 3 , the third sliding block 705 can slide on the third sliding rail 704 in the vertical direction, thereby realizing the sliding connection between the second movable clamping assembly 203 and the frame 5 in the vertical direction.

[0092] In some embodiments, please refer to Figure 1 and Figure 3, the first driving mechanism 3 is arranged on the frame 5, and the first driving mechanism 3 can be used to drive the first movable clamping assembly 202 and the second movable clamping assembly 203 to move synchronously in the vertical direction. Among them, the output end of the first driving mechanism 3 is connected to the first movable clamping assembly 202. The movable clamping mechanism 2 also includes a limiting assembly 205, and the limiting assembly 205 includes a first limiting member 2051 and two second limiting members 2052. The first limiting member 2051 is fixed to the first movable clamping assembly 202. The second limiting members 2052 are arranged in a one-to-one correspondence with the second movable clamping assembly 203, and each second limiting member 2052 is respectively fixed to the corresponding second movable clamping assembly 203, and each second limiting member 2052 is respectively connected to the first limiting member 2051 in a sliding manner in the second direction, and each second limiting member 2052 can slide in the second direction relative to the first limiting member 2051.

[0093] In this embodiment, the movable clamping mechanism 2 further includes a limiting assembly 205, under the action of the limiting assembly 205, the second movable clamping assembly 203 can slide along the second direction relative to the first movable clamping assembly 202. Moreover, under the action of the limiting assembly 205, when the first driving mechanism 3 drives the first movable clamping assembly 202 to move along the vertical direction, the second movable clamping assembly 203 can also move along the vertical direction with the first movable clamping assembly 202. Using a first driving mechanism 3 can drive the first movable clamping assembly 202 and the second movable clamping assembly 203 to move synchronously in the vertical direction, the structure is simpler, the driving mechanism is reduced, the structural complexity of the lunch box clamping device 100a is reduced, and the space occupied by the lunch box clamping device 100a can be reduced, which is more conducive to the miniaturization of the lunch box clamping device 100a.

[0094] As an implementation, please refer to Figure 7The first limiting member 2051 may be a plate-like structure extending in the second direction. The first limiting member 2051 is provided with two first limiting holes 20511 symmetrically arranged in the second direction. The first limiting holes 20511 are configured as elongated holes extending in the second direction. The second limiting member 2052 is a pulley rotatably connected to the second movable clamping assembly 203, and the second limiting member 2052 is slidably connected in the corresponding first limiting hole 20511. Since the first limiting hole 20511 is an elongated hole extending in the second direction, the second movable clamping assembly 203 can move in the second direction relative to the first movable clamping assembly 202, but the second movable clamping assembly 203 cannot move in other directions relative to the first movable clamping assembly 202. Therefore, when the first driving mechanism 3 drives the first movable clamping assembly 202 to move in the vertical direction, the second movable clamping assembly 203 will move synchronously with the first movable clamping assembly 202 in the vertical direction, the structure is simpler, the driving mechanism is reduced, and the structural complexity of the lunch box clamping device 100a is reduced. When the second movable clamping assembly 203 moves along the second direction relative to the first movable clamping assembly 202, the first movable clamping assembly 202 remains stationary in the second direction, and the second limiting member 2052 can slide in the first limiting hole 20511 relative to the first limiting member 2051, which not only allows the second movable clamping assembly 203 to move more smoothly along the second direction relative to the first movable clamping assembly 202, but also can effectively reduce the friction between the first limiting member 2051 and the second limiting member 2052, thereby extending the service life of the limiting assembly 205.

[0095] As an implementation, please refer to Figure 3 The first driving mechanism 3 includes a first driving member 301, a first transmission screw member 302 and a first output member 303. The first driving member 301 is fixed to the frame 5, and the first transmission screw member 302 is fixed to the output end of the first driving member 301. The first output member 303 is transmission-connected to the first transmission screw member 302, and the first output member 303 is fixed to the first movable clamping assembly 202. The first driving member 301 can drive the first transmission screw member 302 to rotate around the first axis, so that the first movable clamping assembly 202 and the second movable clamping assembly 203 move synchronously in the vertical direction. Among them, the first axis is the own axis of the first transmission screw member 302, and the first axis is parallel to the vertical direction.

[0096] As an example, the first driving member 301 may be a motor, and the first output member 303 may be a screw nut. It should be noted that in other embodiments, the first driving mechanism 3 may also be other structures, which may be configured according to actual conditions, and will not be described in detail here.

[0097] As an example, the working principle of the lunch box clamping device 100a is as follows: after the first side edge 4011 of the lunch box 4 is placed on the first elastic clamping component 201a and the edge of the lunch box 4 is abutted against the first positioning component 204a in the first direction, the second driving mechanism 8 drives the two second movable clamping components 203 to move toward each other along the second direction relative to the first movable clamping component 202 until the two second side edges 4012 of the lunch box 4 are placed on the corresponding second elastic clamping components 201b and the edge of the lunch box 4 is abutted against the second positioning component 204b in the second direction, please refer to Figure 4 Then the first driving mechanism 3 drives the first movable clamping assembly 202 and the second movable clamping assembly 203 supporting the lunch box 4 to move upward to the first position synchronously, so that the fixed clamping mechanism 1 and the movable clamping mechanism 2 cooperate to clamp the edge 401 of the lunch box 4, please refer to Figures 5 to 9 After waiting for other devices to complete the processing of the lunch box 4, for example, the moving processing of the lunch box clamping device 100a and the film tearing processing of the lunch box film tearing device 100b, the first driving mechanism 3 drives the first movable clamping component 202 and the second movable clamping component 203 that jointly support the lunch box 4 to move downward synchronously, so that the lunch box 4 is separated from the fixed clamping mechanism 1, and then the second driving mechanism 8 drives the two second movable clamping components 203 to move in opposite directions along the second direction to release the lunch box 4, so that the lunch box 4 can be removed from the lunch box clamping device 100a.

[0098] In some embodiments, please refer to Figure 4 and Fig. 9 The lunch box 4 is a sealed lunch box, and a sealing film 9 for sealing the lunch box 4 is provided at the upper end of the lunch box 4. The sealing film 9 includes a main body 901 and a tearing portion 902 connected in an integral manner, and the tearing portion 902 is convexly arranged at the edge of the main body 901. The fixed clamping mechanism 1 includes a fixed clamping member 102, and the fixed clamping member 102 is fixed to the frame 5, and the positioning hole 101 is opened on the fixed clamping member 102. The fixed clamping member 102 is a hollow structure, and the fixed clamping member 102 also has a first hollowing portion 1021 and a second hollowing portion 1022, and the first hollowing portion 1021 and the second hollowing portion 1022 respectively penetrate the fixed clamping member 102 in the vertical direction, and the second hollowing portion 1022 is connected to the first hollowing portion 1021. The main body 901 is exposed from the first hollow portion 1021, and the tearing portion 902 is exposed from the second hollow portion 1022, so that the lunch box film tearing device 100b can easily perform film tearing processing.

[0099] The food vending cabinet in the embodiment of the present application includes the lunch box clamping device 100a provided in any of the above embodiments.

[0100] In some embodiments, the food vending cabinet further includes a lunch box film tearing device 100b. Figures 13 to 23, the lunch box film tearing device 100b is used to tear off the sealing film 9 on the sealed lunch box 4. The lunch box film tearing device 100b includes a motion component 10, a clamping component 11 and a swing connection component 12. The motion component 10 has an output end that can move along a first direction, a second direction and a vertical direction, wherein the first direction is the Y direction, the second direction is the X direction, and the vertical direction is the Z direction. The clamping component 11 is used to clamp the sealing film 9 of the lunch box 4, specifically, it can be one of the corners of the sealing film 9, and the clamping component 11 is swingably connected to the output end of the motion component 10 through the swing connection component 12.

[0101] Based on this, when the clamping assembly 11 clamps the sealing film 9, the motion assembly 10 can drive the clamping assembly 11 to move, thereby applying a tearing force to the sealing film 9. After the tearing force is applied, the clamping assembly 11 swings from the second position to the third position around the first straight line relative to the output end of the motion assembly 10. After the tearing force disappears, the clamping assembly 11 swings from the third position to the second position.

[0102] In the embodiment of the present application, through the cooperation of the motion component 10 and the clamping component 11, a tearing force can be applied to the sealing film 9 of the lunch box 4, and then the film can be torn. The specific film tearing process is as follows: After the clamping component 11 clamps one of the corners of the sealing film 9, the motion component 10 starts to move, for example, the direction of movement can be a diagonal direction. In the early stage of movement (it can also be said that the early stage of film tearing), due to the action of the swing connection component 12, the clamping component 11 will swing from the second position to the third position, which makes the tearing force increase slowly, thereby ensuring the smooth tearing of the film. This is because, at the beginning, the proportion of the sealing film 9 that is separated from the lunch box 4 is very small. At this time, if it is torn vigorously, it is very likely to cause the sealing film 9 to break. As a result, a very small part of the sealing film 9 is on the clamping component 11, and most of the sealing film 9 is still bonded to the lunch box 4. The embodiment of the present application swings to increase the tearing force slowly, which can slowly increase the proportion of the sealing film 9 that is separated from the lunch box. After the clamping assembly 11 swings to the third position, the tearing force applied to the sealing film 9 tends to be stable, and at this time, the proportion of the sealing film 9 that is separated from the lunch box has become larger, so the film can be torn off smoothly. Finally, after the sealing film 9 is completely separated from the lunch box 4, the tearing force disappears, and the clamping assembly 11 swings from the third position to the second position to complete the film tearing. Therefore, it can be seen that the lunch box film tearing device 100b in the embodiment of the present application can realize the film tearing of the sealed lunch box and ensure the smooth film tearing.

[0103] As an example, in the initial state, the clamping assembly is in Fig.13 , Fig.14 and Fig.18The second position shown. At this time, the motion component 10 can drive the clamping component 11 to move to a position suitable for clamping operation. After the clamping component 11 clamps the sealing film 9, the motion component 10 can drive the clamping component 11 to move and start tearing the film. In the early stage of film tearing, under the action of the swing connection component 12, the clamping component 11 can swing along the S direction around the first straight line 13a relative to the output end of the motion component 10 to the third position, so that the tearing force increases smoothly, effectively protecting the integrity of the sealing film 9 and ensuring smooth film tearing.

[0104] In some embodiments, please refer to Fig.17 The swing connection assembly 12 includes a bearing seat component 1201, a bearing component 1202, a rotating shaft component 1203 and an elastic connection component 1204.

[0105] The bearing seat 1201 is fixed to the output end of the motion component 10, and the bearing member 1202 is accommodated in the bearing seat 1201. The rotating shaft member 1203 is connected to the bearing seat 1201 through the bearing member 1202, and the rotating shaft member 1203 can rotate around the first straight line 13a relative to the bearing seat 1201, wherein the first straight line 13a is the axis of the rotating shaft member 1203. In addition, the rotating shaft member 1203 is fixed to the clamping assembly 11, so that the clamping assembly 11 can rotate around the first straight line 13a relative to the output end of the motion component 10, and it can be understood that the motion component 10 can drive the clamping assembly 11 to move.

[0106] One end of the elastic connector 1204 is connected to the output end of the motion component 10, and the other end of the elastic connector 1204 is connected to the clamping component 11. Due to the action of the elastic connector 1204, in the early stage of film tearing, the clamping component 11 can be swung smoothly along the S direction around the first straight line 13a relative to the output end of the motion component 10 to the third position, so that the tearing force changes smoothly. And after the film tearing is completed, under the action of the elastic connector 1204, the clamping component 11 can also rotate around the first straight line 13a along the N direction relative to the output end of the motion component 10 to return to the second position, so as to clamp the sealing film 9 next time.

[0107] As an implementation method, the elastic connecting member 1204 may be a tension spring. Figures 14 to 17 The swing connection assembly 12 includes a first fixed connection member 1205 and a second fixed connection member 1206, wherein one end of the first fixed connection member 1205 is fixed to the output end of the motion assembly 10, and the other end of the first fixed connection member 1205 is fixed to one end of the elastic connection member 1204. One end of the second fixed connection member 1206 is fixed to the clamping assembly 11, and the other end of the second fixed connection member 1206 is fixed to the other end of the elastic connection member 1204. When the clamping assembly 11 is in Fig.13 and Fig.18In the second position shown, the elastic connecting member 1204 is stretched to the minimum extent, and when the clamping assembly 11 is in Fig.21 and Fig. 22 In the second position shown, the elastic connector 1204 is stretched to the maximum extent. Therefore, during the swinging process, the elastic connector 1204 acts as an obstacle, so the swinging is relatively stable, so that the tearing force also changes relatively smoothly. It can be understood that after the film is torn off, under the reset action of the elastic connector 1204, the clamping assembly 11 can rotate along the N direction to return to the second position, which is more convenient to use.

[0108] For some examples, see Fig.16 As shown, there are two elastic connectors 1204, and the two elastic connectors 1204 are arranged symmetrically about the center of the first straight line 13a. The two elastic connectors 1204 are respectively a first elastic connector 1204a and a second elastic connector 1204b. Since the two elastic connectors 1204 are arranged symmetrically about the center of the first straight line 13a, the upper end of the first elastic connector 1204a is connected to the first fixed connector 1205, and the lower end of the first elastic connector 1204a is connected to the second fixed connector 1206. The lower end of the second elastic connector 1204b is connected to the first fixed connector 1205, and the upper end of the second elastic connector 1204b is fixed to the second fixed connector 1206.

[0109] It should be noted that, in other embodiments, the elastic connector 1204 may also be other structures, which may be configured according to actual conditions and will not be described in detail herein.

[0110] As an implementation, please refer to Figures 14 to 17 ,as well as Fig. 22As shown, the clamping assembly 11 is provided with a second limiting hole 11011, which can be an arc-shaped hole, and if the arc-shaped hole is regarded as an arc-shaped cylinder, the axis of the second limiting hole 11011 is located on the first straight line 13a. The swing connection assembly 12 also includes a swing limiting member 1207, one end of which is fixed to the output end of the motion assembly 10, and the other end of which is slidably connected to the second limiting hole 11011. When the clamping assembly 11 can rotate around the first straight line 13a relative to the output end of the moving assembly 10, since the swing limiter 1207 is slidably connected in the second limiter hole 11011, the second limiter hole 11011 can limit the extreme movement position of the swing limiter 1207, that is, the second limiter hole 11011 can limit the extreme swing angle of the clamping assembly 11, which can not only accurately and effectively limit the swinging of the clamping assembly 11 between the second position and the third position, but also effectively protect the elastic connector 1204, avoiding the elastic connector 1204 from being failed due to excessive pulling, which not only improves the stability of the overall structure but also extends the service life of the elastic connector 1204.

[0111] As an example, please refer to Fig. 22 As shown, the second limiting hole 11011 has a first end 110111 and a second end 110112 that are oppositely disposed. When the swing limiting member 1207 is located at the first end 110111 of the second limiting hole 11011, the clamping assembly 11 is just in the second position, and the elastic connecting member 1204 is in a natural state. When the clamping assembly 11 rotates along the S direction around the first straight line 13a toward the third position relative to the output end of the moving assembly 10, the second limit hole 11011 also rotates relative to the swing limit member 1207, until the clamping assembly 11 rotates to the third position, the swing limit member 1207 is located at the second end 110112 of the second limit hole 11011. At this time, the elastic connecting member 1204 is in a stretched state, but the elastic connecting member 1204 has not reached the ultimate stretched state. Therefore, the swing limit member 1207 can effectively limit the swing angle of the clamping assembly 11, thereby effectively protecting the elastic connecting member 1204 and preventing the elastic connecting member 1204 from being excessively pulled and failing.

[0112] As an example, please refer to Fig.16 , Fig.17 and Fig. 22As shown, the swing connection assembly 12 may include two swing limiters 1207, the two swing limiters 1207 are symmetrically arranged about the center of the first straight line 13a, and the second limit holes 11011 are arranged one-to-one with the swing limiters 1207. When one of the swing limiters 1207 is located at the first end 110111 of the corresponding second limit hole 11011, the other swing limiter 1207 is also located at the first end 110111 of the corresponding second limit hole 11011. When the clamping assembly 11 rotates relative to the output end of the motion assembly 10, the two second limit holes 11011 also rotate relative to the corresponding swing limiters 1207, until the clamping assembly 11 rotates to the third position, the two swing limiters 1207 are just located at the second end 110112 of the corresponding second limit holes 11011, thereby further improving the motion stability of the clamping assembly 11.

[0113] For some examples, see Fig.16 and Fig.17 The swing limiter 1207 is a rod-shaped structure parallel to the first straight line 13a. It is understandable that in other embodiments, the swing limiter 1207 can also be other structures, which can be set according to actual conditions, and will not be described here.

[0114] In some embodiments, please refer to Fig.14 , Fig.15 and Fig.17 , the lunch box film tearing device 100b also includes a fixed component 14, which is used to connect the output end of the motion component 10 and the swing connection component 12. The fixed component 14 includes a first fixed plate 1401 and a second fixed plate 1402. The first fixed plate 1401 is fixed to the output end of the motion component 10, and the first fixed plate 1401 is parallel to the XY plane. The second fixed plate 1402 is used to connect the first fixed plate 1401 and the swing connection component 12, and the first straight line 13a is perpendicular to the second fixed plate 1402. Among them, the second fixed plate 1402 is perpendicular to the XY plane, and there is an angle between the second fixed plate 1402 and the XZ plane. Moreover, the angle between the second fixed plate 1402 and the XZ plane can be adjusted, and the angle of the above angle can be adjusted according to actual conditions, which is more convenient to use.

[0115] As an implementation, please refer to Fig.14 , Fig.15 and Fig.17The second fixing plate 1402 and the first fixing plate 1401 are detachably fixed by a first fastener (not shown) and a second fastener (not shown), and the first fastener and the second fastener may be threaded members such as screws. The first fixing plate 1401 may be provided with a first assembly hole 14011 that matches the first fastener and a second assembly hole 14012 that matches the second fastener, the first assembly hole 14011 may be an arc hole, the second assembly hole 14012 may be a round hole, and the first assembly hole 14011 and the second assembly hole 14012 are coaxially arranged, the threaded rod of the first fastener and the threaded rod of the second fastener may respectively pass through the corresponding first assembly hole 14011 and second assembly hole 14012 and then be screwed into the second fixing plate 1402, thereby fixing the second fixing plate 1402 to the first fixing plate 1401. When the angle of the above-mentioned included angle needs to be adjusted, the first fastener can be disassembled, and then the second fixing plate 1402 can be rotated relative to the first fixing plate 1401 around the second straight line 13b, the second straight line 13b is parallel to the Z direction, and the axis of the second assembly hole 14012 is the second straight line 13b. After the second fixing plate 1402 is rotated to the desired position, the threaded rod of the first fastener can be passed through the first assembly hole 14011 and screwed into the second fixing plate 1402 to fix the second fixing plate 1402 and the first fixing plate 1401, so as to facilitate the adjustment of the angle of the above-mentioned included angle and make it more convenient to use.

[0116] In this embodiment, the bearing seat member 1201, the swing limit member 1207 and the first fixed connection member 1205 can be fixed to the second fixed plate member 1402, that is, the clamping assembly 11 is connected to the second fixed plate member 1402 through the swing connection assembly 12, so that the swing connection assembly 12 can be rotated around the second straight line 13b according to actual needs.

[0117] As an example, please refer to Fig.14 , Fig.15 and Fig.17 The first fixing plate 1401 may have two first assembly holes 14011, which are coaxially arranged. Accordingly, the first fixing plate 1401 and the second fixing plate 1402 may be fastened by two first fasteners, wherein each first assembly hole 14011 cooperates with one first fastener, further improving the connection reliability between the first fixing plate 1401 and the second fixing plate 1402.

[0118] In some embodiments, please refer to Fig.14 , Fig.15 , Fig.17 and Fig. 22The clamping assembly 11 includes a base member 1101, a second clamping member 1102, a third clamping member 1103 and a third driving member 1104. The base member 1101 is connected to the swing connection assembly 12, that is, the rotating shaft member 1203 and the second fixed connection member 1206 can be fixed to the base member 1101, and the second limiting hole 11011 can be opened in the base member 1101. The second clamping member 1102 is slidably connected to the base member 1101, and the second clamping member 1102 has a second clamping portion 11021. The third clamping member 1103 is arranged on the base member 1101, and the third clamping member 1103 has a third clamping portion 11031, the third clamping portion 11031 is located above the second clamping portion 11021, and the third clamping portion 11031 can cooperate with the second clamping portion 11021 to clamp the sealing film 9. The third driving member 1104 is arranged on the base member 1101, and the third driving member 1104 can be used to drive the second clamping member 1102 to move so that the second clamping part 11021 is close to the third clamping part 11031, so as to clamp the sealing film 9 between the second clamping part 11021 and the third clamping part 11031. The structure is simple and easy to use.

[0119] As an implementation, please refer to Fig.14 , Fig.15 and Fig.17 The second clamping portion 11021 may have a first clamping surface 110211, and the first clamping surface 110211 is disposed facing the third clamping portion 11031. The third clamping portion 11031 may have a second clamping surface (not shown), and the second clamping surface is disposed facing the second clamping portion 11021. The first clamping surface 110211 and the second clamping surface may cooperate with each other to clamp the sealing film 9.

[0120] As an example, please refer to Fig.14 , Fig.15 and Fig.17 The first clamping surface 110211 may be formed with anti-slip patterns, which may be arranged according to actual conditions and will not be elaborated herein.

[0121] As an implementation, please refer to Fig.14 and Fig.17, the clamping assembly 11 may further include a fourth slide rail member 1105 and a fourth slider member 1106. The fourth slide rail member 1105 is fixed to the base member 1101, and when the clamping assembly 11 is in the second position, the fourth slide rail member 1105 extends along the Z direction. The fourth slider member 1106 is fixed to the second clamping member 1102, and the fourth slider member 1106 is slidably connected to the fourth slide rail member 1105. In the initial state, the clamping assembly 11 is in the second position, that is, under the drive of the third driving member 1104, the second clamping member 1102 can move upward along the Z direction relative to the base member 1101, so that the second clamping portion 11021 is close to the third clamping portion 11031 along the Z direction.

[0122] It should be noted that, in other embodiments, the clamping assembly 11 may also be other structures. For example, the second clamping member 1102 may also move in other directions so that the second clamping portion 11021 is close to the third clamping portion 11031. Alternatively, the second clamping member 1102 may remain stationary and the third clamping member 1103 may move so that the third clamping portion 11031 is close to the second clamping portion 11021. Alternatively, the second clamping member 1102 and the third clamping member 1103 may move separately so that the second clamping portion 11021 and the third clamping portion 11031 may move toward each other.

[0123] In some embodiments, please refer to Fig.14 , Fig.17 and Fig. 22The third clamping member 1103 is slidably connected to the base member 1101, and the sliding direction of the third clamping member 1103 is parallel to the sliding direction of the second clamping member 1102. The clamping assembly 11 also includes a third limiting member 1107 and a fourth limiting member 1108. The fourth limiting member 1108 is spaced below the third limiting member 1107, and the third clamping member 1103 is limited between the third limiting member 1107 and the fourth limiting member 1108. The third limiting member 1107 includes a fixing portion 11071 and an elastic limiting portion 11072. The fixing portion 11071 is fixed to the base member 1101, and the elastic limiting portion 11072 is compressed between the third clamping member 1103 and the fixing portion 11071. The fourth limiting member 1108 is fixed to the base member 1101. When the second clamping member 1102 does not directly or indirectly apply any external force to the third clamping member 1103, due to the reset effect of the elastic limiting portion 11072, the compressed elastic limiting portion 11072 will apply a downward thrust to the third clamping member 1103. When the second clamping portion 11021 moves to cooperate with the third clamping portion 11031 to clamp the sealing film 9, the second clamping portion 11021 will apply an upward thrust to the third clamping portion 11031, thereby pushing the second clamping portion 11021 to move upward, and under the elastic effect of the compressed elastic limiting portion 11072, the third clamping portion 11031 is abutted against the second clamping portion 11021, thereby achieving elastic clamping of the sealing film 9, which can avoid the second clamping portion 11021 and the third clamping portion 11031 from being unable to effectively cooperate to clamp the sealing film 9 due to various process errors.

[0124] As an implementation, the elastic limiting portion 11072 may be a compression spring. It should be noted that, in other implementations, the elastic limiting portion 11072 may also be other structures, which may be configured according to actual conditions, and will not be described in detail here.

[0125] As an implementation, please refer to Fig.14 , Fig.15 and Fig.17 The clamping assembly 11 may further include a fifth rail member 1109 and a fifth slider member 1110. The fifth rail member 1109 is fixed to the base member 1101, and the fifth rail member 1109 is parallel to the fourth rail member 1105. That is, when the clamping assembly 11 is in the second position, the fifth rail member 1109 extends along the Z direction. The fifth slider member 1110 is fixed to the third clamping member 1103, and the fifth slider member 1110 is slidably connected to the fifth rail member 1109.

[0126] As an implementation, please refer to Fig.14 , Fig.17 and Fig. 22The second clamping member 1102 may further include a first pressure plate portion 11022 and a first vertical arm 11023, wherein the first pressure plate portion 11022 is fixed to the fourth sliding member 1106, the first vertical arm 11023 is fixed to the lower end of the first pressure plate portion 11022, and the second clamping portion 11021 is fixed to the lower end of the first vertical arm 11023. The third clamping member 1103 may also include a second pressure plate portion 11032, a second vertical arm 11033 and a second bending arm 11034, wherein the second pressure plate portion 11032 is fixed to the fifth slider 1110, the second vertical arm 11033 is fixed to the lower end of the second pressure plate portion 11032, the second bending arm 11034 is fixed to the lower end of the second vertical arm 11033, and the second bending arm 11034 extends obliquely toward the first vertical arm 11023, and the third clamping portion 11031 is fixed to the lower end of the second bending arm 11034, so that the third clamping portion 11031 can be located above the second clamping portion 11021. This embodiment can effectively reduce the width of the clamping assembly 11, which is more conducive to the miniaturization of the lunch box film tearing device 100b.

[0127] In some embodiments, please refer to Fig.15 The third limiting member 1107 further includes a guide portion 11073, one end of which is fixed to the fixing portion 11071, and the other end of which is movably inserted into the third clamping member 1103, and the elastic limiting portion 11072 is sleeved outside the guide portion 11073. In addition, the extension direction of the guide portion 11073 is parallel to the moving direction of the third clamping member 1103, that is, the guide portion 11073 can make the compression direction and the reset direction of the elastic limiting portion 11072 parallel to the moving direction of the third clamping member 1103, thereby improving the stability of the elastic limiting portion 11072. When the third clamping member 1103 moves upward under the action of the second clamping member 1102, the guide portion 11073 and the fixing portion 11071 remain fixed, and the third clamping member 1103 can move relative to the guide portion 11073, so that the elastic limiting portion 11072 is compressed along the path limited by the guide portion 11073.

[0128] As an implementation, please refer to Fig.15 The third limiting member 1107 may include two guiding portions 11073 and two elastic limiting portions 11072. The guiding portions 11073 and the elastic limiting portions 11072 are arranged in a one-to-one correspondence, and the two guiding portions 11073 are symmetrically arranged about the third clamping member 1103, which can make the force on the third clamping member 1103 more balanced, so that the second clamping member 1102 and the third clamping member 1103 can keep clamping the sealing film 9.

[0129] In some embodiments, please refer to Fig. 22The third limiting member 1107 may further include a fixed limiting portion 11074, which is fixed to the fixing portion 11071, and the lower end of the fixed limiting portion 11074 protrudes from the lower surface of the fixing portion 11071. When the third clamping member 1103 moves upward to abut against the fixed limiting portion 11074, the third clamping member 1103 will not be able to move upward any further. Therefore, the fixed limiting portion 11074 can effectively limit the upper limit position of the third clamping member 1103, thereby preventing the elastic limiting portion 11072 from being over-compressed, and preventing the third clamping member 1103 from moving upward excessively, thereby preventing the third clamping member 1103 from being unable to effectively cooperate with the second clamping member 1102 to clamp the sealing film 9.

[0130] In some embodiments, please refer to Fig.23 , a locking hole 903 is provided on the sealing film 9. The second clamping member 1102 further includes a locking portion 11024, which is convexly arranged on the side of the second clamping portion 11021 facing the third clamping portion 11031, and the locking portion 11024 is plugged and matched with the locking hole 903, which can improve the matching reliability between the clamping assembly 11 and the sealing film 9, and prevent the sealing film 9 from falling out from between the second clamping member 1102 and the third clamping member 1103 when the film is torn.

[0131] As an embodiment, a clearance hole (not shown) can be opened on the third clamping portion 11031, and the clearance hole can be set corresponding to the locking portion 11024, so as to avoid the locking portion 11024 and prevent the locking portion 11024 from interfering with the third clamping portion 11031, resulting in the second clamping portion 11021 and the third clamping portion 11031 being unable to cooperate to clamp the sealing film 9.

[0132] As an example, in order to effectively tear off the sealing film 9, the lunch box film tearing device 100b can be used in conjunction with the lunch box clamping device 100a, please refer to Figures 18 to 21 . After the lunch box clamping device 100a clamps the edge of the lunch box 4, the lunch box film tearing device 100b can be used to tear off the sealing film 9. The sealing film 9 includes a main body 901 and a tearing portion 902 that are connected together. The middle part of the main body 901 may have a transparent window. The tearing portion 902 is protruding from the edge of the main body 901, and the positioning hole 903 is opened on the tearing portion 902. The lunch box clamping device 100a has a first hollowed-out portion 1021 and a second hollowed-out portion 1022, and the first hollowed-out portion 1021 and the second hollowed-out portion 1022 are connected to the first hollowed-out portion 1021. Among them, the main body 901 is exposed in the first hollowed-out portion 1021, and the tearing portion 902 is exposed in the second hollowed-out portion 1022, so that the lunch box film tearing device 100b can perform film tearing processing.

[0133] In this example, the working principle of the lunch box film tearing device 100b can be: in the initial state, the second clamping portion 11021 is located above the second hollowed-out portion 1022, please refer to Fig.18 As shown. After the lunch box clamping device 100a clamps the edge of the lunch box 4, the motion component 10 drives the clamping component 11 to move until the third clamping part 11031 is located above the sealing film 9. At this time, the third clamping part 11031 can contact the upper surface of the sealing film 9, and the second clamping part 11021 extends into the second hollowed-out part 1022 and is located below the sealing film 9, and there is a gap between the second clamping part 11021 and the sealing film 9. Then the third driving member 1104 drives the second clamping part 11021 to move upward. During this process, the clamping part 11024 is gradually inserted into the clamping hole 903 until the tearing part 902 of the sealing film 9 is clamped between the second clamping part 11021 and the third clamping part 11031. Please refer to Fig.19 and Fig. 20 Then the motion component 10 drives the clamping component 11 to move along the X, Y and Z directions, exerting a tearing force on the sealing film 9 to tear off the sealing film 9. Please refer to Fig.21 For example, the clamping assembly 11 can move along a fourth straight line, and the fourth straight line has an angle with the X direction, the Y direction, and the Z direction respectively. After the tearing force is applied, the clamping assembly 11 swings from the second position to the third position around the first straight line 13a relative to the output end of the motion assembly 10. After the tearing force disappears, the clamping assembly 11 swings back to the second position from the third position.

[0134] In some embodiments, please refer to Fig.17 The third driving member 1104 includes a first driving portion 11041, a first transmission screw portion 11042 and a first output portion 11043. The first driving portion 11041 is connected to the base member 1101, and the first transmission screw portion 11042 is connected to the output end of the first driving portion 11041. The first output portion 11043 is transmission-connected to the first transmission screw portion 11042, and the first output portion 11043 is fixed to the second clamping member 1102. The first driving portion 11041 is used to drive the first transmission screw portion 11042 to rotate around the third straight line 13c, so that the second clamping portion 11021 is close to the third clamping portion 11031. Among them, the third straight line 13c is the axis of the first transmission screw portion 11042, and the third straight line 13c is perpendicular to the first straight line 13a.

[0135] As an example, the first driving part 11041 may be a motor, and the first output part 11043 may be a screw nut. It should be noted that in other embodiments, the third driving member 1104 may also be other structures, which may be configured according to actual conditions, and will not be described in detail here.

[0136] In some embodiments, please refer to Fig.13The motion assembly 10 includes three motion modules, which are respectively a first motion module 1001, a second motion module 1002 and a third motion module 1003, wherein the second motion module 1002 is connected to the output end of the first motion module 1001, the third motion module 1003 is connected to the output end of the second motion module 1002, and the fixed assembly 14 is connected to the output end of the third motion module 1003. The first motion module 1001 can drive the second motion module 1002 to move along the X direction, the second motion module 1002 can drive the third motion module 1003 to move along the Y direction, and the third motion module 1003 can drive the fixed assembly 14 to move along the Z direction, thereby realizing the movement of the clamping assembly 11 in the X direction, the Y direction and the Z direction.

[0137] As an example, the motion module can be a linear slide. It should be noted that in other embodiments, the motion module can also be other structures, which can be set as needed and will not be described in detail here.

[0138] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0139] The above embodiments only express the preferred implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A lunch box clamping device, characterized in that: include: Fixed clamping mechanism; The movable clamping mechanism is arranged below the fixed clamping mechanism; the movable clamping mechanism comprises a plurality of elastic clamping components arranged at intervals along the edge of the lunch box, and the plurality of elastic clamping components are used to support the edge of the lunch box; and A first driving mechanism, used for driving the movable clamping mechanism supporting the lunch box to move upward to a first position; Wherein, when the movable clamping mechanism is in the first position, the fixed clamping mechanism abuts against at least a portion of the edge of the lunch box and each of the elastic clamping components is independently compressed downward under the action of the fixed clamping mechanism, thereby clamping the lunch box.

2. The lunch box clamping device according to claim 1, characterized in that: The elastic clamping assembly comprises a first clamping member and a fixing member which are vertically arranged in sequence in a direction away from the edge of the lunch box; the fixing member is fixedly connected to the movable clamping mechanism, and the first clamping member is used to abut against the lower surface of the edge of the lunch box; The elastic clamping assembly also includes an elastic member which is sleeved outside the fixing member and abuts between the first clamping member and the fixing member.

3. The lunch box clamping device according to claim 1, characterized in that: The lunch box is square, and the edge of the lunch box includes four side edges; The four sides include two first sides arranged opposite to each other in a first direction, and two second sides arranged opposite to each other in a second direction, and the first direction, the second direction and the vertical direction are perpendicular to each other; The elastic clamping assembly is divided into a first elastic clamping assembly supported at the lower end of the first side and a second elastic clamping assembly supported at the lower end of the second side; The movable clamping mechanism comprises a first movable clamping component and a second movable clamping component, the first movable clamping component is arranged corresponding to one of the first side edges, a plurality of the first elastic clamping components are arranged at the upper end of the first movable clamping component, there are two second movable clamping components and they are arranged one-to-one corresponding to the two second side edges, and a plurality of the second elastic clamping components are arranged at the upper end of each second movable clamping component; The first movable clamping assembly is used to position the lunch box in the first direction, and the two second movable clamping assemblies can move toward each other along the second direction to position the lunch box in the second direction.

4. The lunch box clamping device according to claim 3, characterized in that: The movable clamping mechanism also includes a positioning component; The first movable clamping assembly and the second movable clamping assembly are respectively provided with the positioning assembly; The fixing clamping mechanism is provided with a positioning hole which is plugged and matched with the positioning component.

5. The lunch box clamping device according to claim 3, characterized in that: The lunch box clamping device also includes: frame; A first sliding connection mechanism, used for slidingly connecting the first movable clamping assembly and the frame; A second sliding connection mechanism, used for slidingly connecting the corresponding second movable clamping assembly and the frame; and The second driving mechanism is arranged on the frame and is used for driving the two second movable clamping assemblies to move toward or away from each other in the second direction.

6. The lunch box clamping device according to claim 5, characterized in that: The first driving mechanism is disposed on the frame and is used to drive the first movable clamping assembly and the second movable clamping assembly to move synchronously in the vertical direction, and the output end of the first driving mechanism is connected to the first movable clamping assembly; The movable clamping mechanism also includes a limiting assembly, which includes a first limiting member and two second limiting members, wherein the first limiting member is fixed to the first movable clamping assembly, and each second limiting member is respectively fixed to the corresponding second movable clamping assembly and is respectively slidably connected to the first limiting member in the second direction.

7. The lunch box clamping device according to claim 6, characterized in that: The first driving mechanism comprises: A first driving member, fixed to the frame; A first transmission wire rod, fixed to the output end of the first driving member; and A first output member, transmission-connected to the first transmission wire rod and fixed to the first movable clamping assembly; The first driving member is used to drive the first transmission wire rod to rotate around a first axis parallel to the vertical direction, so that the first movable clamping assembly and the second movable clamping assembly move synchronously in the vertical direction.

8. The lunch box clamping device according to claim 5, characterized in that: The second driving mechanism comprises: A second driving member, fixed to the frame; A second transmission wire rod, fixed to the output end of the second driving member; and Second output members are arranged one by one corresponding to the second sliding connection mechanisms, one end of each second output member is transmission-connected to the second transmission wire rod, and the other end is fixed to the corresponding second sliding connection mechanism; The second driving member is used to drive the second transmission wire rod to rotate around a second axis parallel to the second direction, so that the two second movable clamping components move toward each other or away from each other in the second direction.

9. The lunch box clamping device according to any one of claims 1 to 8, characterized in that: The lunch box is a sealed lunch box, and a sealing film for sealing the lunch box is arranged at the upper end of the lunch box, and the sealing film comprises a main body and a tearing portion protruding from the edge of the main body; The fixed clamping mechanism includes a fixed clamping member, which has a first hollow portion and a second hollow portion connected to the first hollow portion, the first hollow portion and the second hollow portion penetrate the fixed clamping member in a vertical direction, the main body is exposed in the first hollow portion, and the tearing portion is exposed in the second hollow portion.

10. A food vending cabinet, characterized in that: It comprises a lunch box clamping device as described in any one of claims 1 to 9.

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