Translation support structure, translation device and parcel locker

Abstract

The present application provides a kind of translational support structure, comprising: first side plate, intermediate plate, second side plate, intermediate plate is between first side plate and second side plate;Multiple first pins are installed to first side plate and intermediate plate parallel to each other and perpendicular to first side plate, each first pin rotatably supports a first bearing, so that multiple first bearings are arranged in a row between first side plate and intermediate plate;Multiple second pins are installed to second side plate and intermediate plate parallel to each other and perpendicular to second side plate, each second pin rotatably supports a second bearing, so that multiple second bearings are arranged in a row between second side plate and intermediate plate;Wherein, the multiple first bearings and the multiple second bearings are staggered with each other.According to the translational support structure of the scheme, strong bearing capacity is provided.The present application also provides a translational device with the translational support structure and a delivery cabinet with the translational device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of express delivery cabinets, in particular to a translation support structure, a translation device with the translation support structure, and a corresponding express delivery cabinet. BACKGROUND

[0002] With the development of unmanned aerial vehicle technology, unmanned aerial vehicles are increasingly applied in the logistics field. Using unmanned aerial vehicles to transport goods can greatly reduce the impact on ground transportation and can also deliver goods to places where logistics vehicles cannot reach. At the destination, an express delivery cabinet that cooperates with the unmanned aerial vehicle can be provided for the unmanned aerial vehicle to land and unload goods, facilitating users to take goods and temporarily store goods. After the unmanned aerial vehicle lands on the express delivery cabinet, the goods enter the interior of the express delivery cabinet from the goods receiving port of the express delivery cabinet and are sent to the corresponding storage box on the express delivery cabinet through a sorting system. Some sorting systems have a translation device for moving goods horizontally in the express delivery cabinet. However, the existing translation devices have low load capacity and are prone to component wear during use.

[0003] Therefore, it is desirable to provide a translation device with high load capacity for use in an express delivery cabinet and an express delivery cabinet employing such a translation device. SUMMARY

[0004] In a first aspect of the present application, a translation support structure is provided, comprising: a first side plate, a middle plate, a second side plate, the middle plate being located between the first side plate and the second side plate; a plurality of first pins installed to the first side plate and the middle plate parallel to each other and perpendicular to the first side plate, each first pin rotatably supporting a first bearing, so that the plurality of first bearings are arranged in a row between the first side plate and the middle plate; a plurality of second pins installed to the second side plate and the middle plate parallel to each other and perpendicular to the second side plate, each second pin rotatably supporting a second bearing, so that the plurality of second bearings are arranged in a row between the second side plate and the middle plate; wherein the plurality of first bearings and the plurality of second bearings are arranged staggered to each other, and the upper edges of the plurality of first bearings and the plurality of second bearings define a support plane, the support plane being higher than the upper edge of the middle plate, for supporting the translation movement of a translation member.

[0005] According to the scheme, in the translational support structure, there are two rows of bearings, each bearing in each row of bearings can rotate around an axis parallel to each other, these bearings together define a support plane to support the translational movement of the translational member above it. The translational support structure supports the translational member through multiple bearings, has strong load-bearing capacity and small translational resistance. Moreover, the multiple first bearings and the multiple second bearings in the two rows of bearings are arranged staggered with each other, and the translational support structure can also arrange a larger number of bearings in the same translational length. Therefore, the translational support structure significantly improves the load-bearing capacity compared to the traditional guide mechanism generally composed of guide rails and guide wheels, while reducing operating noise, reducing part wear, and improving the service life of the related equipment. In addition, the translational member and the multiple bearing surfaces are all rolling friction, which effectively protects the flatness of the surface of the translational member.

[0006] In some schemes, the mounting positions of the multiple first pins on the intermediate plate are arranged alternately with the mounting positions of the multiple second pins on the intermediate plate.

[0007] According to the scheme, the alternating arrangement of the multiple first bearings and the multiple second bearings is achieved by the alternation of the mounting positions of the multiple first pins and the multiple second pins on the intermediate plate, effectively improving the total number of bearings that can be arranged on both sides of the intermediate plate of the same length.

[0008] In some schemes, the outer diameters of the multiple first bearings and the multiple second bearings are the same.

[0009] In some schemes, each adjacent two first bearings in the multiple first bearings are spaced apart by a same first distance; each adjacent two second bearings in the multiple second bearings are spaced apart by a same second distance, and the second distance is equal to the first distance.

[0010] In some schemes, each first pin has a first mounting portion, a first cylindrical portion, a first positioning portion, and a first operation portion in sequence, the first mounting portion is mounted to a corresponding first mounting hole on the intermediate plate, the first cylindrical portion rotatably supports the first bearing, the first positioning portion is mounted to a corresponding first positioning hole on the first side plate, and the first operation portion is located outside the first side plate; each second pin has a second mounting portion, a second cylindrical portion, a second positioning portion, and a second operation portion in sequence, the second mounting portion is mounted to a corresponding second mounting hole on the intermediate plate, the second cylindrical portion rotatably supports the second bearing, the second positioning portion is mounted to a corresponding second positioning hole on the second side plate, and the second operation portion is located outside the second side plate; wherein the first mounting holes and the second mounting holes are arranged alternately on the intermediate plate.

[0011] According to the scheme, the first pin and the second pin are integral parts, and their structure allows them to be securely installed to the first side plate and the middle plate or to the second side plate and the middle plate in a simple manner, and can reliably support the bearing.

[0012] In some designs, the first mounting part is threaded to a corresponding first mounting hole on the intermediate plate, and the second mounting part is threaded to a corresponding second mounting hole on the intermediate plate.

[0013] According to the scheme, the first pin is firmly positioned relative to the intermediate plate through the threaded connection between the first mounting part and the first mounting hole, and the second pin is firmly positioned relative to the intermediate plate through the threaded connection between the second mounting part and the second mounting hole.

[0014] In some designs, the first and second operating parts are prisms with hexagonal cross-sections.

[0015] According to the scheme, the first and second operating parts are easily operated with a wrench, and the operator can easily tighten or loosen the first and second pins with a wrench.

[0016] In some designs, the bearing is a deep groove ball bearing.

[0017] According to this scheme, the load-bearing capacity of the entire translational support structure is further improved by using deep groove ball bearings with strong radial load-bearing capacity.

[0018] In some designs, the supporting plane is higher than the upper edge of the first side plate and lower than the upper edge of the second side plate.

[0019] According to the scheme, the second side plate of the translation support structure has a limiting effect on the translation component that moves translationally above the support plane.

[0020] In a second aspect of the invention, a translation device is provided for a parcel locker, characterized in that it includes a bracket, a loading platform, and any of the aforementioned translation support structures, wherein the translation support structure supports the translational movement of the loading platform, and a first side plate and a second side plate of the translation support structure are mounted to the bracket.

[0021] According to the scheme, the translation device with the aforementioned translation support structure has a significantly improved load-bearing capacity, thereby reducing operating noise, reducing wear on parts, and improving the service life of related equipment.

[0022] In some embodiments, the translation device includes two sets of translation support structures arranged parallel to each other on both sides of the support.

[0023] According to the scheme, the loading platform is supported on both sides along its translation direction, making its movement more stable and further improving the load-bearing capacity of the translation device.

[0024] In some embodiments, the translation device further comprises a pushing mechanism, the pushing mechanism comprising two lead screws driven by a single motor, and two nuts respectively cooperating with the two lead screws, each nut being configured to drive the translation movement of the loading platform, the two lead screws being parallel to the translation support structure.

[0025] According to this embodiment, the pushing mechanism pushes the loading platform on both sides of the loading platform through two lead screws and two corresponding nuts. The two lead screws are driven by a single motor, so that the rotation of the two lead screws can be synchronized, making the movement of the loading platform more stable.

[0026] In some embodiments, the single motor drives the rotation of the two lead screws through a double-row sprocket and two chains, each chain driving the rotation of a lead screw.

[0027] This embodiment realizes the driving of the rotation of the two lead screws by a single motor through the mechanical mechanism of a double-row sprocket and two chains, which can ensure the high synchronization of the rotation of the two lead screws, making the movement of the loading platform more stable.

[0028] In a third aspect of the present application, a delivery cabinet capable of autonomous sorting of express delivery is provided, comprising any of the aforementioned translation devices.

[0029] According to this embodiment, the delivery cabinet can receive a larger range of goods, has lower operating noise, and has a longer service life.

[0030] In some embodiments, the loading platform is a sorting box, and the translation device is configured to drive the translation of the sorting box between a receiving position and a sorting position; or, the loading platform is a drawer plate, and the translation device is configured to drive the translation of the drawer plate between a taking position and a storage position. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A general schematic view of the delivery cabinet of the present application is shown, showing a drone cooperating with the delivery cabinet.

[0032] Figure 2 A translation device of the present application is shown, wherein the loading platform is a sorting box.

[0033] Figure 3 A pushing mechanism of the translation device of the present application is shown.

[0034] Figure 4 A translation device of the present application is shown, wherein the loading platform is a drawer plate, and the entire pushing mechanism is not shown.

[0035] Figure 5A A translation support structure of the present application is shown, Figure 5B A partial enlarged view of the translation support structure of the present application is shown.

[0036] Figure 6 An exploded view of the translation support structure of the present application is shown.

[0037] Figure 7 A perspective view of the pin for the translation support structure of the present application is shown.

[0038] Reference signs:

[0039] 100 delivery cabinet, 110 outer shell, 120 storage box, 130 receiving port, 200 translation device, 210 bracket, 221 sorting box, 222 drawer plate, 230 pushing mechanism, 231 first lead screw, 232 second lead screw, 233 first nut, 234 second nut, 235 motor, 236 double-row sprocket, 2361 first chain, 2362 second chain; 300 translation support structure, 310 first side plate, 311 first positioning hole, 320 second side plate, 321 second positioning hole, 330 middle plate, 331 first mounting hole, 332 second mounting hole, 350 first bearing, 360 second bearing; 410 first pin, 411 first mounting portion, 412 first cylindrical portion, 413 first positioning portion, 414 first operating portion, 420 second pin, 421 second mounting portion, 422 second cylindrical portion, 423 second positioning portion, 424 second operating portion; 500 unmanned aerial vehicle, 510 cargo compartment. DETAILED DESCRIPTION

[0040] In order to make the purpose, scheme and advantages of the technical solutions of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the specific embodiments of the present application. Unless otherwise specified, the terms used herein have the meanings commonly used in the art. The same reference signs in the drawings represent the same components.

[0041] Figure 1 An overall schematic view of the delivery cabinet 100 of the present application is shown, showing the unmanned aerial vehicle 500 used in cooperation with the delivery cabinet 100. The unmanned aerial vehicle 500 is provided with a cargo compartment 510 below, which can load cargo. The unmanned aerial vehicle 500 is arranged to land on the top of the delivery cabinet 100 for unloading. The top of the delivery cabinet 100 has a receiving port 130 for receiving cargo, and the cargo falls from the opening below the cargo compartment 510 of the unmanned aerial vehicle, enters the inside of the delivery cabinet 100 through the receiving port 130. The inside of the delivery cabinet 100 is provided with a cargo sorting mechanism (not shown), which can transfer the cargo received from the receiving port 130 into the corresponding storage box 120 for the user to pick up. Figure 1

[0042] Specifically, the delivery cabinet 100 according to the present application is generally cylindrical, as Figure 1 ​As shown, the express cabinet 100 has a cylindrical outer housing 110. The outer housing 110 encloses a goods sorting mechanism inside, and various storage boxes 120 are arranged in rows on most of the circumferential side of the outer housing 110.

[0043] The goods sorting mechanism of the express cabinet 100 includes a translation device 200 and a rotary lifting device (not shown). The translation device 200 has two opposite ends in the horizontal direction, and the translation device 200 can move a translation member (such as a cargo platform) located on the top thereof horizontally between the two opposite ends. The rotary lifting device is used to move the translation device 200 up and down in the space inside the express cabinet 100 or change the orientation of the translation device 200 in the horizontal plane, so that the cooperation of the translation device 200 and the rotary lifting device can deliver goods from the goods receiving port 130 to the various storage boxes 120.

[0044] For example, in Figure 1 In the cylindrical express cabinet 100 as shown, the rotary lifting device includes a columnar rotary device (not shown) located in the center of the cylinder, extending from the bottom to the top of the cylinder, and capable of rotating around the central axis of the cylinder. One end of the translation device 200 is connected to the columnar rotary device and is configured to be movable in the vertical direction relative to the columnar rotary device. A vertical movement driving device is also mounted on the columnar rotary device for driving the vertical movement of the translation device 200. Thus, the translation member located on the top of the translation device 200 can be moved substantially to any position inside the express cabinet 100.

[0045] The goods sorting mechanism of the express cabinet 100 also includes a sorting processing system for identifying and assigning a storage box to a goods entering the inside of the express cabinet 100. According to the present application, the goods sorting mechanism delivers the goods to a sorting section (not shown) inside the express cabinet 100 for the identification process. For example, the sorting section is provided in a portion of the space in the circumferential side of the outer housing 110 where no storage box 120 is provided, and one or more sensors can be arranged in the sorting section to obtain information related to the assignment of a storage box. Thus, the goods entering the inside of the express cabinet 100 are first delivered by the rotary lifting device and the translation device 200 to the sorting section, where the goods are identified by the sorting processing system and assigned a storage box, and then delivered by the rotary lifting device and the translation device 200 to the assigned storage box 120.

[0046] Figure 2 The translation device 200 according to the present application is specifically shown, which includes a support 210, a cargo platform (not shown) on the top of the support 210, and a vertical movement driving device (not shown) for driving the vertical movement of the cargo platform. Figure 2The two sets of translation support structures 300 are long strips and are arranged in parallel with each other on both sides of the support 210. A loading platform can be placed above the translation support structures 300, supported and guided by the translation support structures 300, so as to move horizontally along the longitudinal direction of the translation support structures 300, for example, from one end of the translation support structures 300 to the other end. This horizontal movement of the loading platform defines a horizontal movement direction V.

[0047] Figure 2 A pushing mechanism 230 of the translation device 200 is also shown, which is used to drive the movement of the loading platform along the horizontal movement direction V. The pushing mechanism 230 has a motor 235, a first lead screw 231 and a second lead screw 232. The motor 235, for example, a servo motor, is fixedly installed at one end of the translation device 200, and the first lead screw 231 and the second lead screw 232, for example, ball screws.

[0048] The first lead screw 231 is arranged on the inner side of one set of translation support structures 300 and parallel to the one set of translation support structures 300. The first lead screw 231 is installed with a drive sprocket at one end close to the motor 235. The first lead screw 231 is sleeved with a first nut 233, which cooperates with the first lead screw 231 and moves along the horizontal movement direction V with the rotation of the first lead screw 231. The first nut 233 is fixed with a first nut extension 241, which can contact the loading platform to push the loading platform to move along the direction V.

[0049] The second lead screw 232 is arranged on the inner side of the other set of translation support structures 300, opposite to the first lead screw 231, and parallel to the other set of translation support structures 300. The second lead screw 232 is installed with a drive sprocket at one end close to the motor 235. The second lead screw 232 is sleeved with a second nut 234, which cooperates with the second lead screw 232 and moves along the horizontal movement direction V with the rotation of the second lead screw 232. The second nut 234 is fixed with a second nut extension 242, which can contact the loading platform to push the loading platform to move along the direction V.

[0050] Figure 3 An enlarged view of the pushing mechanism 230 is shown. As shown in the enlarged view, the first nut 233 and the second nut 234 are arranged on the inner side of the translation support structures 300 and parallel to the translation support structures 300. The first nut 233 and the second nut 234 are fixedly connected to the first nut extension 241 and the second nut extension 242, respectively. Figure 3As shown, the pushing mechanism 230 drives the rotation of the first screw rod 231 and the second screw rod 232 through a single motor 235, so that the first screw rod 231 and the second screw rod 232 can have highly synchronized rotation. Specifically, a double-row sprocket 236 is mounted on the shaft of the motor 235, the motor 235 drives the double-row sprocket 236 to rotate, and through the two rows of sprockets on the double-row sprocket 236, two chains 2361, 2362 are driven to rotate, respectively, wherein the first chain 2361 drives the driving sprocket on the first screw rod 231 to rotate, thereby driving the first screw rod 231 to rotate, and the second chain 2362 drives the driving sprocket on the second screw rod 232 to rotate, thereby driving the second screw rod 232 to rotate. In this way, the highly synchronized rotation of the first screw rod 231 and the second screw rod 232 is obtained through mechanical transmission, thereby obtaining the highly synchronized movement of the first nut 233 and the second nut 234 along the horizontal movement direction V. The double-row sprocket 236 can have an increased axial dimension to ensure that the double-row sprocket does not interfere when independently driven.

[0051] According to the present application, the first chain 2361 and the second chain 2362 can each be provided with a tension adjusting block for tensioning treatment to ensure the effective movement of the sprocket chain. In addition, the servo motor 235 can be equipped with a planetary gear reducer to obtain the effect of increasing torque, so that the pushing mechanism 230 can move heavier goods.

[0052] According to the present application, the pushing mechanism 230 is further provided such that the first nut extension 241 can detachably attach the loading table, and the second nut extension 242 can detachably attach the loading table. Thus, when the pushing mechanism 230 is required to drive the loading table to move along the horizontal movement direction V on top of the translation device 200, the first nut extension 241 and the second nut extension 242 are attached to the loading table to move the loading table. When the loading table is required to be detached from the translation device 200, the pushing mechanism 230 pushes the loading table out of the top of the translation device 200 along the horizontal movement direction V, and then the first nut extension 241 and the second nut extension 242 are both detached from the loading table. Thereafter, the first nut extension 241 and the second nut extension 242 can be fixed to other loading tables to each other, thereby moving the other loading tables on top of the translation device 200 to perform other steps in the sorting process. According to the present application, the loading table moved by the translation device 200 can be a sorting box 221 (see, for example, Figure 2 ), or a drawer plate 222 (see, for example, Figure 4 ).

[0053] For example, according to the present invention, electromagnets are respectively mounted on the first nut extension 241 and the second nut extension 242, and a component such as a sheet of iron is provided at a corresponding position on the side of the loading platform facing the pushing mechanism 230. Before the equipment is operated, the electromagnets on the first nut extension 241 and the second nut extension 242 can be made coplanar, for example, by adjusting the initial positions of the lead screw and the corresponding nuts, so as to ensure that the electromagnets can better attract the loading platform.

[0054] Through the aforementioned goods sorting mechanism, goods undergo the following sorting process in the express locker 100. First, the goods enter the express locker 100 through the receiving port 130. At this time, a sorting box 221 is already placed on top of the translation device 200, and the translation device 200 has moved the sorting box 221 to directly below the receiving port 130 (i.e., the receiving position). The goods fall from the receiving port 130 and enter the sorting box 221. Then, the translation device 200 moves the sorting box 221 to the sorting section (i.e., the sorting position) and leaves the sorting box 221 and the goods inside in the sorting section. The sorting processing system identifies the goods, allocates storage boxes, and removes the goods from the sorting box 221. Next, the translation device 200 is moved by the rotary lifting device to the vicinity of the assigned storage box 120, and the first nut extension 241 and the second nut extension 242 of its pushing mechanism 230 extend out of one end of the top of the translation device 200 and are fixed to the drawer plate 222 of the storage box 120 (see...). Figure 4 Therefore, the pushing mechanism 230 removes the drawer plate 222 from the storage box 120 horizontally and moves it to the top of the translation device 200. Subsequently, the translation device 200 moves the drawer plate 222 to the sorting section (i.e., the picking position), where the drawer plate 222 receives the goods previously retrieved by the sorting system. Next, the translation device 200 moves the drawer plate 222 and the goods on it together to the assigned storage box 120 position (i.e., the storage position), pushing the drawer plate 222 into the storage box 120, thus completing the entire goods sorting process.

[0055] Figure 5A A translational support structure 300 according to the present invention is shown. Figure 5B An enlarged view of the translational support structure 300 is shown. Figure 6 An exploded view of the translational support structure 300 is shown.

[0056] The translation support structure 300 comprises a first side plate 310, a second side plate 320 and a middle plate 330, which is located between the first side plate 310 and the second side plate 320. The first side plate 310 and the second side plate 320 are used to be mounted to the support of the translation device. The first side plate 310, the second side plate 320 and the middle plate 330 can be long strips. Among them, the first side plate 310 is provided with a row of equidistant first positioning holes 311 along its length, the second side plate 320 is provided with a row of equidistant second positioning holes 321 along its length, and the middle plate 330 is provided with a row of equidistant mounting holes 331, 332 along its length.

[0057] The translation support structure 300 further comprises a plurality of first pins 410 and a plurality of second pins 420. Each first pin 410 is mounted to the first side plate 310 and the middle plate 330 parallel to each other and perpendicular to the first side plate 310. Each second pin 420 is mounted to the second side plate 320 and the middle plate 330 parallel to each other and perpendicular to the second side plate 320. According to the present application, the first pins 410 and the second pins 420 can have the same structure, as shown in Figure 7 Figure 7 The middle pin component is equally applicable to the first pins 410 and the second pins 420.

[0058] The first pin 410 has a first mounting portion 411, a first cylindrical portion 412, a first positioning portion 413 and a first operating portion 414 in turn adjacent to each other. The first mounting portion 411 can be cylindrical, used to be mounted to the first mounting hole 331 on the middle plate 330. For example, the first mounting portion 411 can have external threads, and is screwed to the first mounting hole 331. The first cylindrical portion 412 is sleeved with a bearing, the inner ring of which is fixed relative to the first cylindrical portion 412, for example, the inner ring of the bearing is interference fit with the first cylindrical portion 412. Therefore, in the case that the first pin 410 is fixed relative to the middle plate 330, the outer ring of the bearing can rotate around the fixed first cylindrical portion 412. The first positioning portion 413 is cylindrical, which is mounted to the first positioning hole 311 on the first side plate 310. For example, the first positioning portion 413 passes through the first positioning hole 311 and cooperates with the first positioning hole 311. The first operating portion 414 can be a hexagonal column, which is located outside the first side plate 310 to facilitate operation by a wrench or the like, so as to install the first pin 410 to the first side plate 310 and the middle plate 330.

[0059] ​According to the present application, the radial dimensions of the first mounting portion 411, the first cylindrical portion 412, the first positioning portion 413 and the first operating portion 414 can be increased successively. Thus, during installation, the first pin 410 can be successively inserted through the first positioning hole 311 on the first side plate 310, the bearing inner race and the first mounting hole 331 on the intermediate plate 330, and then the operator uses a wrench to screw the first operating portion 414 so that the first pin 410 is tightened relative to the intermediate plate 330.

[0060] The second pin 420 has successively adjacent second mounting portion 421, second cylindrical portion 422, second positioning portion 423 and second operating portion 424. The second mounting portion 421 can be cylindrical, for mounting to the second mounting hole 332 on the intermediate plate 330. For example, the second mounting portion 421 can have external threads and be screwed to the second mounting hole 332. The second cylindrical portion 422 is sleeved with a bearing, the bearing inner race is fixed relative to the second cylindrical portion 422, for example, the bearing inner race is interference fit with the second cylindrical portion 422. Thus, in the case that the second pin 420 is fixed relative to the intermediate plate 330, the bearing outer race can rotate around the fixed second cylindrical portion 422. The second positioning portion 423 is cylindrical, which is mounted to the first positioning hole 321 on the second side plate 320. For example, the second positioning portion 423 passes through the second positioning hole 321 and cooperates with the second positioning hole 321. The second operating portion 424 can be a hexagonal column, which is located outside the second side plate 320 to facilitate operation by a wrench or the like tool, so as to install the second pin 420 to the second side plate 320 and the intermediate plate 330.

[0061] According to the present application, the radial dimensions of the second mounting portion 421, the second cylindrical portion 422, the second positioning portion 423 and the second operating portion 424 can be increased successively. Thus, during installation, the second pin 420 can be successively inserted through the second positioning hole 321 on the second side plate 320, the bearing inner race and the second mounting hole 332 on the intermediate plate 330, and then the operator uses a wrench to screw the second operating portion 424 so that the second pin 420 is tightened relative to the intermediate plate 330.

[0062] Thus, as Figure 5A and Figure 5BAs shown, each first pin 410 rotatably supports a first bearing 350, such that the plurality of first bearings 350 are arranged in a row between the first side plate 310 and the intermediate plate 330, and each second pin 420 rotatably supports a second bearing 360, such that the plurality of second bearings 360 are arranged in a row between the second side plate 320 and the intermediate plate 330. Thus, the upper edges of each first bearing 350 and each second bearing 360 define a support plane, and the support plane is higher than the upper edge of the intermediate plate 330 for supporting the translational movement of the loading platform. By collectively supporting the translational movement of the loading platform through the plurality of bearings arranged in two rows, the load capacity of the translational support structure 300 can be significantly improved. Furthermore, according to the present application, each first bearing 350 and each second bearing 360 is a deep groove ball bearing. Deep groove ball bearings have strong radial load capacity, thereby further increasing the load capacity of the entire translational support structure 300. Furthermore, the outer diameters of each first bearing 350 and each second bearing 360 can be the same to unify the radial forces of each bearing, while reducing the manufacturing cost of the system.

[0063] According to the present application, each first bearing 350 and each second bearing 360 are arranged staggered with respect to each other, thereby dispersing the support force on the loading platform and optimizing the stress condition of the translational support structure 300. This staggered arrangement can be achieved by alternating the arrangement of each first pin 410 and each second pin 420 on both sides of the intermediate plate 330. For example, in the case of the pin structure shown in FIG. 1, the first mounting holes 331 and the second mounting holes 332 on the intermediate plate 330 can be arranged alternately, such that the first pins 410 and the second pins 420 have an alternating arrangement. Figure 7

[0064] Furthermore, according to the present application, each first bearing 350 and each second bearing 360 can be arranged relatively uniformly in the horizontal plane, thereby dispersing the support force on the loading platform and optimizing the stress condition of the translational support structure 300. For example, each adjacent two of the plurality of first bearings 350 are spaced apart by a same first distance, and each adjacent two of the plurality of second bearings 360 are spaced apart by a same second distance, and the second distance is equal to the first distance.

[0065] ​Therefore, when the two aforementioned translation supporting structures 300 are installed on both sides of the translation device 200, the translation device 200 can stably support the movement of a larger weight of the loading platform, and has small operation noise and small part loss. In addition, according to the present application, the supporting plane formed by each first bearing 350 and each second bearing 360 is higher than the upper edge of the side plate of the translation supporting structure 300 located inside the translation device 200, but is lower than the upper edge of the side plate of the translation supporting structure 300 located outside the translation device 200. Therefore, the two side plates located outside the translation device 200 can limit the horizontal movement of the loading platform on both sides of the loading platform.

[0066] The various exemplary embodiments of the present application are described in detail herein with reference to the preferred embodiments, however, it should be understood by those skilled in the art that various modifications and changes can be made to the above specific embodiments, and various technical features and structures proposed by the present application can be combined without departing from the concept of the present application, and the protection scope of the present application is determined by the appended claims.

Claims

1. A translational bearing structure, characterized by Comprise: a first side plate, a middle plate, a second side plate, the middle plate being between the first side plate and the second side plate; a plurality of first pins installed to the first side plate and the middle plate in parallel to each other and perpendicular to the first side plate, each first pin rotatably supporting a first bearing, so that the plurality of first bearings are in a row between the first side plate and the middle plate; a plurality of second pins installed to the second side plate and the middle plate in parallel to each other and perpendicular to the second side plate, each second pin rotatably supporting a second bearing, so that the plurality of second bearings are in a row between the second side plate and the middle plate; wherein the plurality of first bearings and the plurality of second bearings are staggered with each other, upper edges of the plurality of first bearings and the plurality of second bearings defining a bearing plane, the bearing plane being higher than an upper edge of the middle plate, for supporting translational movement of a translator, wherein each first pin has a first positioning portion and a first operation portion adjacent to each other, the first positioning portion being installed to a corresponding first positioning hole on the first side plate, the first operation portion being on an outer side of the first side plate, each second pin has a second positioning portion and a second operation portion adjacent to each other, the second positioning portion being installed to a corresponding second positioning hole on the second side plate, the second operation portion being on an outer side of the second side plate.

2. The translational bearing structure according to claim 1, wherein: the installation positions of the plurality of first pins on the middle plate and the installation positions of the plurality of second pins on the middle plate are alternately arranged.

3. The translational bearing structure of claim 1, wherein, the outer diameters of the plurality of first bearings and the plurality of second bearings are the same.

4. The translational bearing structure according to claim 1, wherein: each two adjacent first bearings in the plurality of first bearings are spaced by a same first distance; each two adjacent second bearings in the plurality of second bearings are spaced by a same second distance, the second distance being equal to the first distance.

5. The translational bearing structure according to claim 1, wherein: each first pin has a first installation portion, a first cylindrical portion, the first positioning portion, the first operation portion, in sequence and adjacent to each other, the first installation portion being installed to a corresponding first installation hole on the middle plate, the first cylindrical portion rotatably supporting the first bearing; each second pin has a second installation portion, a second cylindrical portion, the second positioning portion, the second operation portion, in sequence and adjacent to each other, the second installation portion being installed to a corresponding second installation hole on the middle plate, the second cylindrical portion rotatably supporting the second bearing; wherein the first installation holes and the second installation holes are alternately arranged on the middle plate.

6. The translational bearing structure of claim 5, wherein, the first installation portion is threadedly connected to the corresponding first installation hole on the middle plate, the second installation portion is threadedly connected to the corresponding second installation hole on the middle plate.

7. The translational bearing structure of claim 6, wherein, the first operation portion and the second operation portion are hexagonal columns in cross section.

8. The translational bearing structure of claim 1, wherein, the bearings are deep groove ball bearings.

9. The translational bearing structure of claim 1, wherein, the bearing plane is higher than an upper edge of the first side plate and lower than an upper edge of the second side plate.

10. A translation device for a parcel locker, comprising: comprise a support, a cargo platform, and the translational bearing structure according to any one of claims 1 to 9, the translational bearing structure supporting translational movement of the cargo platform, the first side plate and the second side plate of the translational bearing structure being installed to the support.

11. The translation device of claim 10, wherein, comprise two groups of the translational bearing structure, arranged in parallel to each other on two sides of the support.

12. A translation device according to claim 10 or 11, characterised in that, The pushing mechanism comprises two lead screws driven by a single motor, and two nuts respectively matched with the two lead screws, each nut being used to drive the translation movement of the loading platform, and the two lead screws being parallel to the translation support structure.

13. The translation device of claim 12, wherein, The single motor drives the rotation of two chains through a double-row chain wheel, and the two chains drive the rotation of the two lead screws respectively.

14. A parcel locker capable of autonomously sorting parcels, the parcel locker comprising: The single motor drives the rotation of two chains through a double-row chain wheel, and the two chains drive the rotation of the two lead screws respectively. The translation device according to any one of claims 10-13.

15. The express cabinet according to claim 14, characterized in that, The loading platform is a sorting box, and the translation device is used to drive the translation of the sorting box between a receiving position and a sorting position; or the loading platform is a drawer plate, and the translation device is used to drive the translation of the drawer plate between a taking position and a storage position.

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