Slewing bearing arrangement, rotary device and parcel locker

Abstract

The application provides a slewing bearing structure for supporting the slewing of a frame inside a delivery cabinet, comprising: a base plate; a first guide wheel and a second guide wheel rotatably arranged on the upper side of the base plate, the first guide wheel being used for engaging the inner side surface of a ring-shaped guide rail, and the second guide wheel being used for engaging the outer side surface of the ring-shaped guide rail; and at least one guide arranged on the lower side of the base plate and used for being inserted into a guide hole in the frame, so that the base plate is floatingly mounted on the upper side of the frame. The slewing bearing structure according to the application can make the rotating movement of the supported component obtain better guiding precision and reduced rotating resistance, thereby improving the rotating speed and reducing the noise. The application also provides a rotating device with the slewing bearing structure and a delivery cabinet capable of autonomously sorting deliveries.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of express delivery cabinets, in particular to a slewing bearing structure, a rotating device with the slewing bearing structure, and an 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 cooperating with the unmanned aerial vehicle can be provided for the unmanned aerial vehicle to land and unload goods, and for the user to take the goods and temporarily store the goods. The express delivery cabinet cooperating with the unmanned aerial vehicle has a sorting device for transferring goods from a goods receiving port to a user goods taking shelf. The sorting device has a rotating device for rotating the goods to a corresponding orientation, so as to facilitate the goods to be sent to different storage boxes of the goods taking shelf. Although the rotating device in the existing express delivery cabinet can rotate the goods in this way, it still has the problems of slow operation, large driving load, and large operation noise.

[0003] Therefore, it is desirable to provide a slewing bearing structure for reducing the operation resistance of a rotating device of an express delivery cabinet, a rotating device employing the slewing bearing structure, and an express delivery cabinet employing the rotating device. SUMMARY

[0004] In a first aspect of the present application, a slewing bearing structure for supporting the slewing of a frame member inside an express delivery cabinet is provided, comprising: a base plate; a first guide wheel and a second guide wheel rotatably arranged on the upper side of the base plate, the first guide wheel being configured to engage the inner side of a ring-shaped guide rail, and the second guide wheel being configured to engage the outer side of the ring-shaped guide rail; and at least one guide member arranged on the lower side of the base plate and configured to be inserted into a guide hole in the frame member, so that the base plate is floatingly mounted on the upper side of the frame member.

[0005] The slewing bearing structure according to the scheme is arranged between the ring-shaped guide rail and the frame member, providing a guiding function for the rotation of the ring-shaped guide rail and the frame member relative to each other, while still allowing the two to float relative to each other in a direction perpendicular to the plane in which the ring-shaped guide rail lies, thereby having a buffering function. Therefore, when the ring-shaped guide rail and the frame member have a height error in the vertical direction, for example due to machining and assembly errors, the slewing bearing structure allows the frame member to be easily mounted relative to the ring-shaped guide rail. After installation, when the frame member rotates relative to the ring-shaped guide rail and the top height thereof cannot be kept precisely constant, the slewing bearing structure still allows the rotation of the frame member to be smooth, i.e. better guiding accuracy and reduced rotation resistance, thereby increasing the rotation speed, further reducing the driving load of the rotating device and the possible wear and operation noise of the components. In addition, the slewing bearing structure thus arranged can reduce the volume and weight of the entire rotating device.

[0006] In some embodiments, the slewing bearing structure further comprises a third guide wheel and a fourth guide wheel rotatably arranged on the upper side of the base plate, the third guide wheel being configured to engage the inner side surface of the ring rail, and the fourth guide wheel being configured to engage the outer side surface of the ring rail.

[0007] The slewing bearing structure according to the embodiments provides redundancy in the guide wheel guiding aspect, and reduces the tilting moment that the ring rail can exert on the first guide wheel and the second guide wheel, thereby further reducing the noise and wear caused by the contact between the components during operation.

[0008] In some embodiments, the first guide wheel and the second guide wheel are arranged along a first straight line, and the third guide wheel and the fourth guide wheel are arranged along a second straight line, the first straight line and the second straight line intersecting at the center of the ring rail.

[0009] The slewing bearing structure according to the embodiments further optimizes the positions of the guide wheels, and reduces the moment generated by the guide wheels on the segments of the ring rail, thereby improving the rotation guiding effect.

[0010] In some embodiments, the outer peripheral surface of each guide wheel has an annular groove configured to cooperate with an annular protrusion on the ring rail.

[0011] The slewing bearing structure according to the embodiments improves the engagement between the guide wheels and the ring rail through the cooperation of the annular groove and the annular protrusion, reduces the relative movement of the guide wheels and the ring rail in the vertical direction, and thereby improves the rotation guiding effect.

[0012] In some embodiments, the guide members comprise first guide members and second guide members located on both sides of the guide wheels in the circumferential direction, each guide member being configured to be inserted into a corresponding guide hole in the frame member.

[0013] According to the embodiments, the slewing bearing structure has more than one guide member, which is arranged in a position that can further reduce the tilting degree of the slewing bearing structure relative to the ring rail or the frame member, thereby improving the rotation guiding effect.

[0014] In some embodiments, the slewing bearing structure further comprises positioning sleeves corresponding to the guide members, which are mounted on the frame member and have positioning holes aligned with the guide holes, the guide members being inserted into the positioning holes.

[0015] According to the embodiments, the slewing bearing structure further assists the positioning of the guide members relative to the guide holes through the positioning sleeves corresponding to the guide members provided on the frame member, reduces the tilting degree of the slewing bearing structure relative to the ring rail or the frame member, improves the rotation guiding effect, and reduces the wear between the components.

[0016] In a second aspect of the present application, a rotating device for a delivery cabinet is provided, comprising: a fixed structure; a frame member rotatable relative to the fixed structure; a driving device mounted to the fixed structure at a first side of the frame member for driving the frame member to rotate; an annular guide rail mounted to the fixed structure at a second opposite side of the frame member for guiding the frame member to rotate; and further comprising the rotating support structure according to any one of the preceding solutions, cooperating with the annular guide rail and being floatably mounted to the second side of the frame member.

[0017] In the rotating device according to the solution, the frame member is rotatably connected to the fixed structure at the first side and the second side respectively, the rotation is driven by the driving device at the first side of the frame member, and is guided by the rotating support structure at the second side of the frame member. Due to the provision of the rotating support structure, even if the frame member is positionally offset relative to the fixed structure at the second side due to various reasons such as load, the rotation of the frame member relative to the fixed structure can be smoothly performed.

[0018] In some solutions, the rotating device comprises four sets of the rotating support structure, which are uniformly distributed along the circumferential direction.

[0019] According to the solution, the stress on the top of the frame member and the annular guide rail in the rotating device is more uniform, the rotation of the frame member relative to the fixed structure can be more smoothly performed, and the wear of the components in the rotating device can be reduced, thereby prolonging the service life of the device.

[0020] In a third aspect of the present application, a delivery cabinet capable of autonomously sorting deliveries is provided, comprising: the rotating device according to any one of the preceding solutions, the delivery cabinet comprising an outer housing, and a goods sorting mechanism located inside the outer housing, the outer housing comprising the fixed structure, and the goods sorting mechanism comprising the frame member.

[0021] According to the solution, the rotating device in the delivery cabinet participates in the autonomous sorting of goods, the rotating device can drive the related mechanism to rotate smoothly, and the delivery cabinet operates quickly with reduced noise.

[0022] In some solutions, the driving device is located at the bottom of the goods sorting mechanism, and the annular guide rail is mounted to the top plate of the outer housing and located at the top of the goods sorting mechanism.

[0023] According to the solution, the goods delivered to the top of the delivery cabinet by the unmanned aerial vehicle can pass through the opening of the top plate of the delivery cabinet, the circular opening of the annular guide rail and enter the inside of the delivery cabinet in sequence, and then be sorted by the goods sorting mechanism, and the sorting process is fast and smooth. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The overall schematic diagram of the delivery cabinet of the present application is shown, and the unmanned aerial vehicle used in cooperation with the delivery cabinet is shown.

[0025] Figure 2 A top perspective view of the rotating device of the present application is shown, wherein a portion of the top plate of the parcel locker is shown;

[0026] Figure 3 A top perspective view of the rotating device of the present application is shown, wherein a portion of the top plate of the parcel locker is shown;

[0027] Figure 4 A perspective view of the slewing bearing structure of the present application is shown, wherein the slewing bearing structure is shown disposed between the ring rail and the frame member;

[0028] Figure 5 A perspective view of the top portion of the rotating device of the present application is shown, wherein the slewing bearing structure is shown disposed between the ring rail and the frame member;

[0029] Figure 6 A partial cross-sectional view of the slewing bearing structure of the present application is shown.

[0030] Reference numerals: 1 parcel locker, 2 drone, 3 cargo compartment, 4 cargo receiving port, 5 storage box, 6 outer housing, 10 rotating device, 12 frame member, 120 top plate of the frame member, 121 upright post of the frame member, 123 guide hole, 14 ring rail, 141 ring protrusion, 15 slewing bearing structure, 150 base plate, 151 first guide wheel, 152 second guide wheel, 153 third guide wheel, 154 fourth guide wheel, 155 first guide member, 156 second guide member, 158 positioning sleeve, 159 positioning hole, 61 top plate of the outer housing, V vertical direction. DETAILED DESCRIPTION

[0031] In order to make the purpose, scheme and advantages of the technical solutions of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely in the following with reference to 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 numerals in the drawings represent the same components.

[0032] Figure 1 A general schematic view of the parcel locker 1 of the present application is shown, showing a drone 2 used in cooperation with the parcel locker 1. The drone 2 is provided with a cargo compartment 3 below, which can load cargo. The drone 2 is arranged to land on the top of the parcel locker 1 for unloading. The top of the parcel locker 1 has a cargo receiving port 4 for receiving cargo, which falls from the opening below the cargo compartment 3 of the drone 2 into the interior of the parcel locker 1 through the cargo receiving port 4. The interior of the parcel locker 1 is provided with a cargo sorting mechanism (not shown in the figure), which can transfer the cargo received from the cargo receiving port 4 into the corresponding storage box 5 for the user to pick up. Figure 1 ​

[0033] Specifically, the express cabinet 1 according to the present application is generally cylindrical, as shown in the drawings. Figure 1 As shown, the express cabinet 1 has a cylindrical outer housing 6, which also includes a top plate 61 at its top. The outer housing 6 encloses a goods sorting mechanism inside, and each storage box 5 is arranged in a row on the circumferential side of the outer housing 6.

[0034] For the sake of clarity in the following description, unless otherwise explicitly stated, the orientation terms appearing in this text have the following meanings: upward (or upwards) is the direction from the ground on which the express cabinet is installed towards the top plate 61 of the outer housing 6, downward (or downwards) is the direction from the top plate 61 of the outer housing 6 towards the ground, both the upward direction and the downward direction are vertical directions V, and the plane orthogonal to the vertical direction V is called a horizontal plane; in addition, since the express cabinet 1 is generally cylindrical, it defines a central axis L of the express cabinet and defines an inward direction and an outward direction relative to the central axis L; the circumferential direction refers to the circumferential direction around the central axis L.

[0035] The goods sorting mechanism inside the express cabinet 1 includes a rotating device 10 and a pushing device. The rotating device 10 includes a frame member 12. The frame member 12 is an elongated frame extending upward from the center of the bottom of the outer housing 6 to the center of the top plate 61, and is capable of rotating around the central axis L. The inside of the frame member 12 has a hollow interior space along the vertical direction V, and is open at its top and at least one side. On the other hand, the pushing device of the goods sorting mechanism is attached to the frame member 12, and the pushing device has a pushing platform extending horizontally from the interior space of the frame member 12 through one open side to the lateral outside of the frame member 12. The pushing platform is capable of moving goods or related components along the horizontal direction between the interior space of the frame member 12 and the end of the pushing platform away from the frame member 12, i.e. away from the central axis L and close to the storage boxes 5. In addition, the entire pushing device is capable of moving along the vertical direction V relative to the frame member 12.

[0036] Thus, the goods entering the express cabinet 1 from the goods receiving port 4 at the top of the express cabinet 1 can enter the interior space of the frame member 12 through the opening at the top of the frame member 12, and fall onto the planar portion of the pushing platform inside the interior space of the frame member 12. Next, through the rotation of the frame member 12 around the central axis L, the movement of the pushing device relative to the frame member 12 along the vertical direction V, and the pushing of the pushing platform in the horizontal direction, the goods entering the express cabinet 1 are delivered to any predetermined position on the circumferential side of the express cabinet 1, such as a goods sorting station (not shown) or a certain storage box 5.

[0037] As mentioned above, the rotating device 10 of the goods sorting mechanism is used to rotate the pushing device and the goods or components on the pushing platform of the pushing device relative to the central axis L. Specifically, the rotating device 10 comprises an outer housing 6, a frame member 12, a driving device, an annular guide rail 14 and a slewing bearing structure 15. The outer housing 6 is fixed relative to the ground and has a top portion (e.g. a top plate 61) near the upper end of the frame member 12 and a bottom portion near the lower end of the frame member 12. In addition, the lower end of the frame member 12 defines a first side of the frame member 12 and the upper end of the frame member 12 defines a second side of the frame member 12.

[0038] The frame member 12 is rotatably connected to the outer housing 6 at the lower end of the frame member 12 (i.e. the first side of the frame member 12) by a known connecting structure. The outer housing 6 is provided with the driving device at the bottom portion for driving the frame member 12 to rotate around the central axis L from the lower end of the frame member 12, thereby achieving control of the rotation angle of the frame member 12 around the central axis L. On the other hand, the lower side of the top plate 61 of the outer housing 6 is fixedly arranged with the annular guide rail 14, the opening of which is aligned with the goods receiving port 4 on the top plate of the outer housing 6 and the opening at the top portion of the frame member 12, so that the goods can fall onto the pushing platform of the pushing device in sequence through the goods receiving port 4, the circular opening of the annular guide rail 14 and the internal space of the frame member 12. It is noted that the top plate 61 here is a plate structure at the top portion of the frame member 12, which can be covered by other structures without constituting the topmost structure of the outer housing 6. Therefore, the annular guide rail 14 is fixed relative to the upper portion or the top plate 61 of the outer housing 6. The annular guide rail 14 guides the slewing of the frame member 12 above the frame member 12 through the slewing bearing structure 15.

[0039] Figure 2 And Figure 3 A perspective view of the annular guide rail 14 and the top portion of the frame member 12 is shown for illustrating the slewing of the frame member 12 guided by the annular guide rail 14. In this view, Figure 2 A portion of the top plate 61 and the top portion of the frame member 12 are shown. As mentioned above, the top plate 61 is fixed and the entire frame member 12 can rotate around the central axis L. In this view, Figure 2 In this view, the annular guide rail 14 installed at the lower side of the top plate 61 is covered by the top plate 61. In this view, Figure 3 In this view, the top plate 61 is removed to clearly show the annular guide rail 14 and the top portion of the frame member 12.

[0040] As Figure 2 And Figure 3As shown, the frame member 12 includes a substantially rectangular frame member top plate 120, and four vertical columns 121 extending vertically downward from the four corners of the top plate 120. The columns 121 are fixed to the four corners of the top plate 120, for example, by bolts, so as to ensure a hollow interior space of the frame member 12. The center of the frame member top plate 120 has a circular opening, which is aligned with the circular opening of the top plate 61, and also with the annular guide rail 14, so as to enable the goods to fall through the same. As shown in Figure 2 and Figure 3 As shown, four sets of identical rotary support structures 15 are provided between the annular guide rail 14 and the frame member top plate 120, and are evenly distributed along the circumferential direction of the annular guide rail 14. The rotary support structures 15 are used to support the smooth rotation of the frame member 12 relative to the annular guide rail 14.

[0041] Figure 4 A partial enlarged view of Figure 3 is shown, which specifically shows one set of rotary support structures 15. The rotary support structures 15 have a base plate 150, which is preferably a rectangular base plate 150. Above the base plate, two pairs of guide wheels are provided, a first pair of guide wheels and a second pair of guide wheels. Among them, the first guide wheel 151 and the second guide wheel 152 in the first pair of guide wheels are each rotatably provided on the radially inner side and the radially outer side of the annular guide rail 14, and the outer side of the first guide wheel 151 engages the inner side of the annular guide rail 14, and the outer side of the second guide wheel 152 engages the outer side of the annular guide rail 14. The third guide wheel 153 and the fourth guide wheel 154 in the second pair of guide wheels are each rotatably provided on the radially inner side and the radially outer side of the annular guide rail 14, and the outer side of the third guide wheel 153 engages the inner side of the annular guide rail 14, and the outer side of the fourth guide wheel 154 engages the outer side of the annular guide rail 14. In Figure 4 the embodiment, the rotation axis of each guide wheel is parallel to the central axis L, so as to simplify the structure and installation of the rotary support structure 15 and the entire rotary device 10. In addition, as shown in Figure 4 the outer peripheral surface of each guide wheel has an annular groove, which is used to cooperate with the annular protrusion on the annular guide rail 14, so as to enable better engagement between the guide wheel and the annular guide rail 14.

[0042] The rotary support structure 15 is also provided with guide members 155, 156 Figure 4 (not directly shown in the drawings) on the lower side of the base plate 150 thereof. Figure 6 A partial cross-sectional view of the rotary support structure 15 is shown, which specifically shows the guide member 156, and the description regarding the guide member 156 is also applicable to the guide member 155.

[0043] As Figure 6As shown, the guide members 156 extend downward from the underside of the base plate 150. The frame member top plate 120 is provided with a respective guide hole 123 with respect to each guide member, such that each guide member can be inserted into the respective guide hole 123 with a clearance fit therebetween. For example, the guide member and the guide hole 123 have a clearance of at least 1 mm therebetween, such that the guide member can slide up and down with respect to the guide hole 123 flexibly. Thus, the movement of the guide member in the horizontal direction is limited to a certain extent by the guide hole 123, but the movement in the vertical direction V is not limited by the guide hole 123. As a result, the guide member can move up and down along the guide hole 123, such that the base plate 150 can float up and down with respect to the frame member 12. In other words, even if the frame member 12 is tilted or deformed to a certain extent due to the load on other parts thereof, resulting in a certain displacement of the various parts of the frame member top plate 120 with respect to the ring-shaped guide rail 14 in the vertical direction V, the various guide wheels above the base plate 150 can still ensure good engagement with the ring-shaped guide rail 14, thereby ensuring smooth rotation of the frame member 12 about the central axis L.

[0044] Figure 6 Also shown is a positioning sleeve 158 corresponding to the guide member 156, which is formed as part of the slewing bearing structure 15. The positioning sleeve 158 is fixed below the frame member top plate 120, and has a through-going positioning hole 159 inside, which is aligned with and through-going with respect to the guide hole 123, such that a portion of the guide member 156 can be movably accommodated in the positioning hole 159. For example, the guide member and the positioning hole 159 have a clearance of at least 1 mm therebetween. The positioning hole 159 allows the movement of the guide member 156 in the horizontal direction to be limited within a larger height range. Such arrangement reduces the pressure of the guide member 156 acting directly on the inner side wall of the guide hole 123, and optimizes the stress condition of the frame member top plate 120. In addition, such arrangement further limits the tilting of the base plate 150 with respect to the horizontal surface, thereby improving the guiding effect of the ring-shaped guide rail 14.

[0045] In an alternative embodiment, the guide member and the positioning hole 159 form a clearance fit, while the guide hole 123 in the frame member top plate 120 has a larger diameter with respect to the positioning hole 159. This arrangement allows a larger error range in the horizontal position of the guide member of the slewing bearing structure 15 with respect to the frame member top plate 120 during the installation of the frame member 12, facilitating the installation.

[0046] Figure 5 A perspective view of the top portion of the rotating device 10 is shown, which is flipped upside down, in Figure 5As can be seen, each set of rotary bearing structure 15 has two positioning sleeves 158, and the two positioning sleeves 158 are arranged along the circumferential direction. Alternatively, the lower side of the base plate 150 of each rotary bearing structure 15 can also be provided with only one guide 155, and correspondingly, the frame top plate 120 below the rotary bearing structure 15 has only one guide hole 123 and one positioning sleeve 158. In the rotary bearing structure 15 thus arranged, the base plate 150 can also float relative to the frame top plate 120. However, as shown in the rotary bearing structure 15 with two guides 155, 156, the inclination of the base plate 150 relative to the horizontal surface can be further limited, thereby improving the guiding effect of the ring guide rail 14. Figures 2 to 5

[0047] In addition, Figure 5 and Figure 6 The positioning sleeve 158 is shown in the form of a flange, and the flange at one end of the positioning sleeve 158 is fixed to the frame top plate 120 by bolts or screws, thereby further reducing the manufacturing cost while ensuring the guiding effect. According to Figure 5 and Figure 6 , the guide 156 is a cylinder, and the guide hole 123 and the positioning hole 159 are both cylindrical holes, thereby simplifying the manufacturing and installation process. According to an embodiment, the guide 156 is made of nylon material, and the frame top plate 120 and the positioning sleeve 158 are both made of metal material, whereby an improved cushioning effect can be generated between the guide 156 and the guide hole 123 and the positioning hole 159.

[0048] Returning to Figure 3 , the rotating device 10 is provided with four sets of rotary bearing structures 15 along the circumferential direction between the ring guide rail 4 and the frame top plate 120. As can be known from the foregoing description, in the case where the frame 12 is formed into a substantially cuboid and the frame top plate 120 is formed into a substantially rectangle, the uniform arrangement of the four sets of rotary bearing structures 15 along the circumferential direction enables the guiding effect of the ring guide rail 14 on the frame top plate 120 to be uniformly distributed along the circumferential direction, thereby making the rotation of the frame 12 more stable.

[0049] In addition, as shown in Figure 3 , for each set of rotary bearing structure 15, the first guide wheel 151 and the second guide wheel 152 can be arranged along a straight line passing through the center of the ring guide rail 14, and the third guide wheel 153 and the fourth guide wheel 154 can be arranged along a straight line passing through the center of the ring guide rail 14, so that the first straight line and the second straight line intersect at the center of the ring guide rail. Thus, the torque generated by each guide wheel on each section of the ring guide rail is reduced, thereby improving the rotation guiding effect.

[0050] ​The preferred embodiments of the present application are described herein with reference to the accompanying drawings, in which multiple exemplary embodiments of the present application are disclosed. However, those skilled in the art will understand that various modifications and changes can be made to the specific embodiments described herein without departing from the spirit and scope of the present application, and that the various technical features and structures proposed in the present application can be combined without departing from the scope of the present application, and the scope of protection of the present application is defined by the appended claims.

Claims

1. A rotating device (10) for use in a parcel locker (1), characterized in that, include: Fixed structure; The frame component (12) is rotatable relative to the fixed structure; A drive unit, which is mounted on a fixed structure on the underside of the frame member (12), is used to drive the frame member (12) to rotate; A ring guide rail (14) is mounted on the upper side of the frame member to a fixed structure for guiding the frame member (12) to rotate; The slewing bearing structure (15) includes: - base plate (150), - A first guide wheel (151) and a second guide wheel (152) are rotatably disposed on the upper side of the base plate (150). The first guide wheel (151) is used to engage the inner side of the annular guide rail (14), and the second guide wheel (152) is used to engage the outer side of the annular guide rail (14). - At least one guide (155, 156) is disposed on the underside of the substrate (150) for insertion into a guide hole (123) in the frame member (12) such that the substrate (150) is floatably mounted on the upper side of the frame member (12).

2. The rotating device (10) according to claim 1, characterized in that, It also includes a third guide wheel (153) and a fourth guide wheel (154), which are rotatably disposed on the upper side of the base plate (150). The third guide wheel (153) is used to engage the inner side of the annular guide rail (14), and the fourth guide wheel (154) is used to engage the outer side of the annular guide rail (14).

3. The rotating device (10) according to claim 2, characterized in that, The first guide wheel (151) and the second guide wheel (152) are arranged along the first straight line, and the third guide wheel (153) and the fourth guide wheel (154) are arranged along the second straight line. The first straight line and the second straight line intersect at the center of the annular guide rail (14).

4. The rotating device (10) according to any one of claims 1-3, characterized in that, Each guide wheel has an annular groove on its outer circumferential surface to fit the annular protrusion (141) on the annular guide rail (14).

5. The rotating device (10) according to any one of claims 1-3, characterized in that, The guide includes a first guide (155) and a second guide (156), which are located on both sides of the guide wheel in the circumferential direction. Each guide (155, 156) is used to insert into the corresponding guide hole (123) in the frame member (12).

6. The rotating device (10) according to claim 5, characterized in that, It also includes a positioning sleeve (158) corresponding to the guide, which is mounted on the frame member (12) and has a positioning hole (159) aligned with the guide hole (123), into which the guide is inserted.

7. The rotating device (10) according to claim 1, characterized in that, It includes four sets of the aforementioned slewing bearing structures (15), which are evenly distributed along the circumferential direction.

8. A parcel locker (1) capable of autonomously sorting parcels, characterized in that, include: The rotating device (10) according to any one of claims 1 to 7. The parcel locker (1) includes an outer shell (6) and a goods sorting mechanism located inside the outer shell (6). The outer shell (6) includes the fixed structure, and the cargo sorting mechanism includes the frame (12).

9. The express delivery locker (1) according to claim 8, characterized in that, The drive unit is located at the bottom of the goods sorting mechanism. The annular guide rail (14) is mounted on the top plate (61) of the housing and is located on top of the cargo sorting mechanism.

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