Butt joint device, vehicle carrying platform and layer changing elevator

Abstract

The invention belongs to the field of logistics, and particularly discloses a butt joint device, a vehicle carrying platform and a layer changing elevator. The butt joint device comprises a sliding frame, a butt joint mechanism and a connecting mechanism. The sliding frame is used for being in sliding connection with a carrying platform frame of the vehicle carrying platform. The butt joint mechanism comprises two carrying table guide rails which extend in the first direction and are oppositely arranged, and the carrying table guide rails are used for being in butt joint with goods shelf guide rails. The butt joint mechanism is flexibly connected to the upper side of the sliding frame through a connecting mechanism, and the connecting mechanism allows the butt joint mechanism to rotate around any direction relative to the sliding frame under the action of butt joint extrusion force and reset to the initial state when the butt joint extrusion force is removed. The vehicle carrying platform comprises the butt joint device. The layer changing elevator comprises the vehicle carrying platform. According to the butt joint device, the vehicle carrying platform and the layer changing elevator, the carrying platform guide rail can rotate in any direction to adjust the butt joint position, the butt joint reliability of the carrying platform guide rail and the goods shelf guide rail is improved, and distortion caused by butt joint is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics, and in particular to a docking device, a vehicle loading platform, a layer-changing elevator and a shuttle vehicle system. Background Art

[0002] In order to improve the efficiency of cargo storage and picking, modern warehousing has vigorously promoted and developed the "goods-to-person" technology, and the shuttle goods-to-person technology is widely used. The shuttle goods-to-person system usually configures a shuttle for each shelf, or a shuttle is shared by multiple shelves, and the shuttle is carried by the layer changer to realize its layer change operation.

[0003] The existing layer-changing machine usually includes a lifting frame and a vehicle platform. The lifting frame is arranged at one end of the multi-layer shelf, and the multi-layer shelf is provided with multi-layer shelf rails; the vehicle platform is arranged on the lifting frame in a liftable manner, and the vehicle platform is provided with a platform rail. When the shuttle vehicle needs to change layers, the vehicle platform is lifted to the target height and extended horizontally relative to the lifting frame so that the platform rail on the vehicle platform is docked with the shelf rail, thereby realizing the transfer of the shuttle vehicle between the multi-layer shelf and the vehicle platform.

[0004] In order to ensure the smooth transfer of the shuttle vehicle between the carrier platform and the multi-layer shelf, the carrier platform rails and the shelf rails need to be aligned in the vertical and horizontal directions. However, since the shelf rails are fixed and rigidly connected to the frame of the carrier platform, the carrier platform rails can only be extended horizontally during docking, resulting in a rigid docking between the carrier platform rails and the shelf rails.

[0005] In actual use, due to processing errors of the platform guide rails or shelf guide rails, lifting stroke errors of the carrier or other reasons, there will be horizontal or height deviations between the platform guide rails and the shelf guide rails when the platform guide rails are lifted to the target height, causing the platform guide rails and the shelf guide rails to deform after docking, affecting the smooth transfer of the shuttle vehicle between the platform guide rails and the shelf guide rails, and easily causing fatigue damage to the carrier or the shelf guide rails under long-term use; at the same time, when the platform guide rails are twisted during docking, they will exert a large force on the driving cylinder of the carrier, which may cause the driving cylinder to overload, affecting the safety and reliability of the driving cylinder and the carrier. Summary of the invention

[0006] The first object of the present invention is to provide a docking device, which can realize flexible docking between the platform guide rail and the shelf guide rail, reduce the probability of deformation and damage of the docking device, and improve the docking stability and reliability of the platform guide rail and the shelf guide rail.

[0007] The second object of the present invention is to provide a vehicle loading platform, which can improve the docking reliability and stability of the vehicle loading platform and the multi-layer shelf, and improve the safety of use and service life of the vehicle loading platform.

[0008] The third object of the present invention is to provide a layer-changing elevator, which can improve the docking reliability and docking stability between the layer-changing elevator and the multi-layer shelf, and improve the reliability of the use of the layer-changing elevator.

[0009] To achieve the above object, the present invention adopts the following technical solutions:

[0010] A docking device, comprising:

[0011] A sliding frame, used for sliding connection with the platform frame of the vehicle platform;

[0012] The docking mechanism comprises two platform rails extending in a first direction and arranged opposite to each other, wherein the platform rails are used to dock with the shelf rails;

[0013] The connecting mechanism allows the docking mechanism to rotate in any direction relative to the slide frame when subjected to docking extrusion force, and to reset to an initial state when the docking extrusion force is removed.

[0014] As an optional technical solution of a docking device, the connecting mechanism includes:

[0015] An elastic seat, each of the platform guide rails is connected to the slide frame through the elastic seat, and the elastic seat is made of elastic material;

[0016] A hinge assembly, a connecting piece is connected between the two platform guide rails, the hinge assembly is connected between the connecting piece and the slide frame, and the hinge assembly allows the connecting piece to rotate in any direction relative to the slide frame.

[0017] As an optional technical solution of a docking device, the hinge assembly includes:

[0018] A hinged seat, mounted on the sliding frame;

[0019] A rotating unit connected to the connecting member;

[0020] The hinge structure is connected between the rotating unit and the hinge seat, and the hinge structure allows the rotating unit to rotate in any direction relative to the hinge seat.

[0021] As an optional technical solution for a docking device, the hinge structure includes a connecting bearing, which includes a bearing outer ring and a bearing inner ring that can rotate at any angle relative to the bearing outer ring, the bearing outer ring is installed on the hinge seat, and the rotating unit is installed on the bearing inner ring.

[0022] As an optional technical solution of the docking device, the rotating unit is slidably inserted into the inner ring of the bearing.

[0023] As an optional technical solution of the docking device, the hinge assembly further includes a reset assembly, and the reset assembly is used to maintain or restore the hinge assembly to an initial state.

[0024] As an optional technical solution for the docking device, the reset assembly includes an elastic ring and two fixed seats, the fixed seats are fixed relative to the sliding frame, two ends of the elastic ring are wrapped around the two fixed seats, the elastic ring has two elastic sections located between the two fixed seats and tensioned, and the rotating unit is clamped between the two elastic sections.

[0025] As an optional technical solution of the docking device, a limiting groove group is provided on the rotating unit, and the limiting groove group is arranged in a one-to-one correspondence with the elastic ring. The limiting groove group includes two limiting through grooves that are opposite and spaced apart, and the two elastic sections are respectively clamped in the two limiting through grooves;

[0026] And / or, the distance between the two elastic sections gradually decreases from the fixing seat to the rotating unit.

[0027] As an optional technical solution of the docking device, the rotating unit includes a detachably connected rotating shaft and a clamping seat, the rotating shaft is connected to the hinge structure and the connecting member, and the clamping seat is provided with the limiting groove group.

[0028] As an optional technical solution of the docking device, the upper end surface of the clamping seat is provided with a limit groove group with an upper opening, and the lower end surface of the rotating shaft blocks the upper end opening of the limit groove group;

[0029] And / or, the lower end surface of the clamping seat is provided with a limit groove group with a lower opening, and the rotating unit further includes a clamping plate, which is detachably connected to the lower end of the clamping seat and closes the lower end opening of the limit groove group.

[0030] As an optional technical solution of the docking device, the rotating unit is arranged through the hinge seat, the fixed seat is located outside the hinge seat, and the side wall of the hinge seat is provided with an escape opening for the elastic ring to pass through;

[0031] And / or, an outer side wall of the fixing seat is provided with an annular groove, and a corresponding end of the elastic ring is sleeved in the annular groove.

[0032] As an optional technical solution of the docking device, at least two reset assemblies are provided, all the elastic rings are arranged at intervals in the vertical direction, and all the elastic rings are arranged crosswise in the horizontal plane.

[0033] As an optional technical solution of the docking device, two reset assemblies are provided, wherein one elastic ring is provided along the first direction, and the other elastic ring is provided along a second direction, and the second direction is perpendicular to the first direction.

[0034] As an optional technical solution of the docking device, the hinge assembly further includes a fixed base plate, the fixed seat and the hinge seat are both mounted on the fixed base plate, and the fixed base plate is detachably connected to the sliding frame.

[0035] As an optional technical solution for a docking device, the connecting member is connected to the middle of the carrier guide rail along the length direction, the connecting member extends along a second direction, the second direction is perpendicular to the first direction, and the hinge assembly is connected to the middle position of the connecting member in the length direction.

[0036] A vehicle carrier comprises a carrier frame and also comprises a docking device as described above, wherein the docking device can be slidably mounted on the carrier frame along the first direction.

[0037] A layer-changing elevator comprises the vehicle-carrying platform as described above.

[0038] The beneficial effects of the present invention are:

[0039] The docking device provided by the embodiment of the present invention connects the docking mechanism and the sliding frame by adopting a connecting mechanism, and the connecting mechanism allows the docking mechanism to rotate in any direction relative to the sliding frame, so that when the platform guide rail and the shelf guide rail are docked, the platform guide rail can be deflected relative to the shelf guide rail when subjected to an extrusion force that is not flush with the first direction, so that the platform guide rail can be deflected to a target docking position that is completely flush with the shelf guide rail, thereby ensuring the docking reliability of the platform guide rail and the shelf guide rail, avoiding torsional deformation and large force problems of the platform guide rail caused by docking when the platform guide rail or the shelf guide rail is in position deviation, and improving the long-term use reliability of the platform guide rail and the docking device; at the same time, because the connecting mechanism enables the docking mechanism to reset to an initial state that is stable relative to the sliding frame when the docking extrusion pressure is withdrawn, it can better prepare for the next docking, further improving the docking reliability and docking effect.

[0040] The vehicle loading platform provided in the embodiment of the present invention can improve the reliability and stability of the docking between the vehicle loading platform and the shelf guide rails, reduce the probability of deformation and fatigue damage of the vehicle loading platform, improve the long-term performance of the vehicle loading platform, and reduce the force applied to the driving mechanism due to docking mismatch, avoid the problem of overloading the driving mechanism, and improve the safety of the vehicle loading platform.

[0041] The layer-changing elevator provided by the embodiment of the present invention can improve the reliability and safety of the layer-changing elevator and extend the service life of the layer-changing elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of the structure of a vehicle loading platform provided by an embodiment of the present invention;

[0043] Figure 2 It is a partial structural schematic diagram of a vehicle loading platform provided in an embodiment of the present invention;

[0044] Figure 3 yes Figure 2 A partial enlarged view of point I in the middle;

[0045] Figure 4 is a schematic structural diagram of a docking device provided by an embodiment of the present invention at a certain viewing angle;

[0046] Figure 5 yes Figure 4 A partial enlarged view of the J in the middle;

[0047] Figure 6 yes Figure 4 A partial enlarged view of the K in the middle;

[0048] Figure 7 is a schematic structural diagram of a docking device provided by an embodiment of the present invention from another viewing angle;

[0049] Figure 8 yes Figure 7 A partial enlarged view of the L in the middle;

[0050] Fig. 9 is a schematic structural diagram of a hinge assembly provided by an embodiment of the present invention;

[0051] Fig.10 is a cross-sectional view of a hinge assembly and a connecting member in a mating state provided by an embodiment of the present invention;

[0052] Fig.11 is a schematic diagram of the back structure of the hinge assembly provided by an embodiment of the present invention;

[0053] Fig.12 is a schematic structural diagram of a reset assembly and a rotation unit provided in an embodiment of the present invention;

[0054] Fig.13 yes Fig.12 A partial enlarged view of the M in the middle;

[0055] Fig.14 is a schematic structural diagram of a hinged seat provided by an embodiment of the present invention at a certain viewing angle;

[0056] Fig.15 is a structural schematic diagram of the hinged seat provided by an embodiment of the present invention from another viewing angle;

[0057] Fig.16It is a schematic diagram of the structure of the clamping seat provided by an embodiment of the present invention.

[0058] The following are marked in the figure:

[0059] 100, docking device; 200, stage frame; 201, top frame; 202, bottom frame; 2021, bottom crossbeam; 2022, middle crossbeam; 2023, bottom longitudinal beam; 203, connecting vertical rod; 300, driving mechanism; 400, guide rail; 500, guide slider;

[0060] 1. Articulated assembly; 11. Articulated seat; 111. Bearing mounting hole; 1111. Large hole portion; 1112. Small hole portion; 1113. Position-limiting step surface; 112. Seat mounting cavity; 113. Avoidance opening; 12. Rotating unit; 121. Rotating shaft; 1211. Spindle portion; 1212. Connecting plate portion; 122. Clamping seat; 1221. Position-limiting through groove; 123. Clamping plate; 13. Connecting bearing; 131. Bearing outer ring; 132. Bearing inner ring; 14. Reset assembly; 141. Elastic ring; 1411. Elastic section; 142. Fixed seat; 1421. Fixed shaft; 1422. Pressing plate; 1423. Annular groove; 15. Bearing cover; 151. Cover plate portion; 152. Pressing ring portion; 16. Shaft position-limiting member; 17. Sliding sleeve; 18. Fixed base plate;

[0061] 2. Sliding frame; 21. Sliding beam; 22. Mounting beam; 221. Main beam portion; 222. Mounting plate portion; 23. Adapter plate;

[0062] 3. Docking mechanism; 31. Platform guide rail; 32. Connecting piece; 33. Guide rail docking assembly;

[0063] 4. Elastic seat; 41. Main elastic part; 42. Lower mounting part; 43. Upper mounting part; 5. Adapter seat; 51. Horizontal seat part; 52. Vertical seat part; 6. Drive connecting seat; 7. Stopper. DETAILED DESCRIPTION

[0064] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0065] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0067] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0068] The present embodiment provides a shuttle system, which is applied to a warehousing logistics system, so that the goods on the shelves can be picked up and placed by running the shuttle on different shelves, thereby realizing operations such as outbound, inbound or palletizing of the goods.

[0069] The shuttle system includes multi-layer shelves, shuttles and layer-changing elevators. Among them, at least two multi-layer shelves are arranged opposite to each other and at intervals along the second direction, and the multi-layer shelves include multi-layer cargo grids arranged at intervals along the vertical direction, and each cargo grid includes a plurality of cargo positions arranged side by side; multiple pairs of shelf rails are arranged between two adjacent multi-layer shelves, and the number of pairs of shelf rails is the same as the number of layers of the multi-layer cargo grids, and they are arranged one by one, and each pair of shelf rails includes two shelf rails extending along the first direction, and the two shelf rails are arranged opposite to each other and at intervals in the second direction. A layer-changing elevator is provided at at least one end of the multi-layer shelf along the first direction, and the layer-changing elevator includes a lifting frame and a vehicle loading platform which can be lifted and lowered in the lifting frame, and the vehicle loading platform has a vehicle loading platform guide rail 31 extending along the first direction, and the vehicle loading platform can be lifted and lowered to be aligned with the guide rail of any layer of the shelf and docked with the platform guide rail through movement along the first direction; the shuttle car can move between the docked shelf rail and the platform guide rail 31 to realize the transfer of the shuttle car between the multi-layer shelf and the vehicle loading platform, thereby realizing the transfer of the shuttle car between the guide rails of different layers of the shelf.

[0070] In the present invention, the structure of the lifting platform in the multi-layer shelves, shuttle vehicles and layer-changing elevators can be set with reference to the existing technology. This is not the focus of this embodiment, and the present invention does not limit or elaborate on this. This embodiment only introduces the specific structure of the vehicle platform.

[0071] like Figure 1 As shown, in this embodiment, the vehicle platform includes a platform frame 200, a docking device 100 and a driving mechanism 300. Among them, the platform frame 200 can be installed on the lifting frame in a lifting manner to achieve the connection between the vehicle platform and the lifting frame and to achieve the bearing of the remaining structures on the vehicle platform and the shuttle vehicle; the docking device 100 includes a pair of platform guide rails 31, and the docking device 100 can be installed on the platform frame 200 in a sliding manner along a first direction to achieve the switching of the docking device 100 between the docking position and the initial position. When the docking device 100 is in the docking position, the docking end of the platform guide rail 31 extends out of the platform frame 200 to dock with the shelf guide rail. When the docking device 100 is in the initial position, the platform guide rail 31 retracts relative to the extended position to separate from the shelf guide rail; the driving mechanism 300 is used to drive the docking device 100 to reciprocate between the docking position and the initial position.

[0072] like Figure 2 As shown, the stage frame 200 is a hexahedral frame structure, which includes a horizontally arranged bottom frame 202 and a top frame 201 arranged parallel to and spaced from the top of the bottom frame 202. The bottom frame 202 and the top frame 201 are both rectangular frame structures, and the four corners of the bottom frame 202 and the top frame 201 are connected with connecting vertical rods 203. The bottom frame 202, the top frame 201 and the four connecting vertical rods 203 together form a vehicle carrying space, which is used to accommodate a shuttle vehicle.

[0073] like Figures 1 to 3 As shown, the docking device 100 is slidably mounted on the bottom frame 202. Specifically, the bottom frame 202 includes two bottom cross beams 2021 that are opposite and spaced apart in the second direction and two bottom longitudinal beams 2023 connected between the two ends of the two bottom cross beams 2021. The bottom cross beam 2021 extends in the first direction, and the bottom longitudinal beam 2023 extends in the second direction. A guide rail 400 is installed on the inner side of the bottom cross beam 2021. Guide sliders 500 are provided on both sides of the docking device 100 in the second direction. The guide sliders 500 are slidably mounted on the guide rails 400 to achieve sliding guidance of the docking device 100 in the first direction. Preferably, two guide sliders 500 are spaced apart in the first direction on each side of the docking device 100 to improve the reliability and stability of the guidance.

[0074] The driving mechanism 300 is installed on the bottom frame 202 and is located below the docking device 100 to drive the docking device 100 to move and avoid interference with the docking device 100. In this embodiment, the driving mechanism 300 includes a driving telescopic cylinder, which includes a cylinder body and a telescopic rod that can be telescoped relative to the cylinder body. The cylinder body is hingedly installed on the bottom frame 202, and the end of the telescopic rod is hinged to the bottom of the docking device 100. When the telescopic rod is extended relative to the cylinder body, the docking device 100 is driven to extend relative to the platform frame 200 to achieve docking between the platform guide rail 31 and the shelf guide rail; when the telescopic rod is retracted relative to the cylinder body, the docking device 100 is driven to retract to achieve separation of the platform guide rail 31 from the shelf guide rail.

[0075] The bottom frame 202 also includes an intermediate crossbeam 2022 between the two bottom crossbeams 2021, and the driving mechanism 300 is installed on the intermediate crossbeam 2022, so that the driving mechanism 300 is arranged at the middle position of the docking device 100 along the second direction, thereby improving the force balance and running stability of the docking device 100. The hinge axis of the telescopic rod and the docking device 100 is arranged along the second direction, and the hinge axis of the cylinder body and the bottom frame 202 is arranged along the second direction, so that the driving mechanism 300 can rotate relative to the platform guide rail 31 and the docking device 100 around the second direction, thereby avoiding the problem of excessive load on the driving mechanism 300 caused by the rigid connection.

[0076] like Figure 4 and Figure 7 As shown, the docking device 100 includes a sliding frame 2, a docking mechanism 3 and a connecting mechanism. The sliding frame 2 is used for sliding connection with the platform frame 200 of the vehicle platform; the docking mechanism 3 includes two platform guide rails 31 extending along a first direction and arranged opposite to each other, and the platform guide rails 31 are used for docking with the shelf guide rails; the docking mechanism 3 is flexibly connected to the upper side of the sliding frame 2 through a connecting mechanism, and the connecting mechanism allows the docking mechanism 3 to rotate in any direction relative to the sliding frame 2 when subjected to the docking extrusion force, and to reset to the initial state relative to the sliding frame 2 when the docking extrusion force is removed.

[0077] The docking device 100 provided in this embodiment connects the docking mechanism 3 and the slide frame 2 by using a connecting mechanism, and the connecting mechanism allows the docking mechanism 3 to rotate in any direction relative to the slide frame 2, so that when the platform guide rail 31 and the shelf guide rail are docked, the platform guide rail 31 can be deflected relative to the shelf guide rail when subjected to an extrusion force that is not flush with the first direction, so that the platform guide rail 31 can be deflected to a target docking position that is completely flush with the shelf guide rail, thereby ensuring the docking reliability of the platform guide rail 31 and the shelf guide rail, and avoiding the platform guide rail 31 or the shelf guide rail from being aligned with the shelf guide rail when the platform guide rail 31 or the shelf guide rail is in a position deviation. The torsional deformation and high force of the carrier guide rail 31 caused by the docking are solved, the long-term reliability of the carrier guide rail 31 and the docking device 100 is improved, and the force applied to the drive mechanism 300 due to docking mismatch is reduced, the overload problem of the drive mechanism 300 is avoided, and the safety of the carrier platform is improved; at the same time, due to the connecting mechanism, the docking mechanism 3 can be reset to the initial state that is stable relative to the slide frame 2 when the docking extrusion pressure is withdrawn, which can better prepare for the next docking and further improve the docking reliability and docking effect.

[0078] In this embodiment, the sliding frame 2 includes two sliding beams 21 that are opposite and spaced apart in a first direction and a mounting beam 22 connected between the two sliding beams 21. The sliding beam 21 extends in a second direction, and both ends of the sliding beam 21 are slidably connected to the bottom frame 202. Specifically, both ends of each sliding beam 21 are connected to the above-mentioned guide sliders 500, and the sliding frame 2 is slidably connected to the platform frame 200 through the guide sliders 500. This type of sliding frame 2 has a simple structure and a small weight, which can simplify the structure of the docking device 100 and reduce the weight of the docking device 100 and the vehicle platform. The sliding beam 21 preferably adopts a U-shaped beam structure to ensure the overall structural strength and rigidity of the sliding beam 21.

[0079] In other embodiments, the sliding frame 2 may adopt other structures, such as a rectangular frame structure, or the sliding frame 2 includes two sliding beams 21 arranged along the second direction and a mounting beam 22 connected between the two sliding beams 21 .

[0080] The mounting beam 22 includes a main beam portion 221 and two mounting plate portions 222 disposed at both ends of the main beam portion 221. The two mounting plate portions 222 are respectively connected to the two sliding beams 21, and the connection method can be screws, bolts or welding, which is not limited in this embodiment. The main beam portion 221 preferably extends along the first direction and is located in the middle position of the sliding beam 21 along the second direction to ensure the structural strength and rigidity of the entire sliding frame 2 and reduce the probability of torsional deformation of the sliding frame 2. Preferably, an adapter plate 23 is arranged between the mounting plate portion 222 and the sliding beam 21, and the adapter plate 23 can be detachably connected to the mounting plate and the sliding beam 21.

[0081] The main beam 221 is preferably a U-shaped beam structure with an opening facing upward, and the bottom of the mounting beam 22 is connected to a drive connection seat 6, which is hinged to the telescopic rod of the driving mechanism 300. The drive connection seat 6 is preferably located in the middle of the mounting beam 22 along the length direction.

[0082] like Figure 4 As shown, the docking mechanism 3 includes the above-mentioned two platform rails 31, and a connecting piece 32 is connected between the platform rails 31 to ensure the movement synchronization of the two platform rails 31 and improve the docking efficiency. Each platform rail 31 has a docking end for docking with the shelf rail, and a rail docking assembly 33 is installed at the docking end. The rail docking assembly 33 is used to achieve guidance and positioning when the platform rail 31 and the shelf rail are docked.

[0083] A stopper 7 is provided on the platform guide rail 31. The stopper 7 is arranged away from the docking end of the platform guide rail 31 and protrudes from the upper side surface of the platform guide rail 31. The stopper 7 is used to stop the shuttle to prevent the shuttle from falling from the platform, thereby improving the transfer safety of the shuttle on the platform.

[0084] It is worth noting that the specific structure of the carrier rail 31, the rail docking assembly 33 and the stopper 7 can be set with reference to the prior art. This is not the focus of the present invention. The present invention does not limit or elaborate on the specific structure of the carrier rail 31, the rail docking assembly 33 and the stopper 7.

[0085] like Figure 4 As shown, the connection mechanism includes an elastic seat 4 and an articulated assembly 1, each platform guide rail 31 is connected to the slide frame 2 through the elastic seat 4, the connecting member 32 is connected to the slide frame 2 through the articulated assembly 1, the elastic seat 4 is made of elastic material, and the articulated assembly 1 allows the connecting member 32 to rotate in any direction relative to the slide frame 2. This arrangement can improve the force balance of the docking mechanism 3 while realizing the flexible movement of the docking mechanism 3 relative to the slide frame 2, improve the installation stability and reliability of the docking mechanism 3 on the slide frame 2, reduce the probability of the platform guide rail 31 rotating at will, and further ensure the docking reliability of the platform guide rail 31 and the shelf guide rail.

[0086] like Figure 4 and Figure 5 As shown, further, each carrier guide rail 31 is correspondingly provided with two elastic seats 4, and the two elastic seats 4 are respectively connected to the two sliding beams 21, thereby ensuring that the carrier guide rail 31 and the slide frame 2 have two connection positions, and the two connection positions are spaced apart along the extension direction of the carrier guide rail 31, effectively ensuring the installation stability of the carrier guide rail 31 on the slide frame 2, reducing the probability of random movement of the carrier guide rail 31, and ensuring the docking reliability of the carrier guide rail 31 and the shelf guide rail.

[0087] However, it is understandable that in other embodiments, the number of elastic seats 4 can be adaptively designed according to the structure of the slide frame 2, and preferably, each carrier rail 31 is provided with at least two elastic seats 4 spaced apart along the length direction.

[0088] Preferably, both ends of each sliding beam 21 are provided with an adapter seat 5, and the elastic seat 4 and the guide slider 500 are detachably connected to the adapter seat 5 to improve the installation convenience of the elastic seat 4 and the guide slider 500 on the sliding frame 2. Specifically, the adapter seat 5 includes a vertically connected horizontal seat portion 51 and a vertical seat portion 52, the horizontal seat portion 51 is horizontally arranged and connected to the upper side of the sliding beam 21, and the vertical seat portion 52 is vertically arranged and located outside the end of the sliding beam 21. The guide slider 500 is installed at one end of the vertical seat portion 52 away from the sliding beam 21, and the elastic seat 4 is installed on the upper side of the horizontal seat portion 51.

[0089] The elastic seat 4 includes an upper mounting portion 43, a main elastic portion 41 and a lower mounting portion 42 which are sequentially connected from top to bottom. The lower mounting portion 42 is detachably connected to the cross seat portion 51, the upper mounting portion 43 is detachably connected to the carrier rail 31, and the main elastic portion 41 is made of elastic material. Specifically, the lower mounting portion 42 is a flange structure, the lower mounting portion 42 extends outward from the main elastic portion 41 along the radial direction of the main elastic portion 41, and a lower mounting hole is provided on the lower mounting portion 42. The lower mounting portion 42 is connected to the cross seat portion 51 by a threaded member penetrating the lower mounting hole, the cross seat portion 51 and the sliding beam 21. An upper mounting hole is provided at the center of the upper mounting portion 43, and the upper mounting hole extends to the main elastic portion 41. The upper mounting portion 43 is connected to the carrier rail 31 by a threaded member penetrating the upper mounting hole and the carrier rail 31.

[0090] It is worth noting that the above-mentioned elastic seat 4 and the connection structure between the elastic seat 4 and the carrier guide rail 31 and the slide frame 2 are only exemplary structures. The elastic seat 4 can adopt existing mature products, and its installation structure can be adaptively set according to the specific structure of the elastic seat 4. This embodiment does not impose any restrictions on this.

[0091] like Figure 6 , Fig. 9 and Fig.10 As shown, the hinge assembly 1 includes a hinge seat 11, a hinge structure and a rotating unit. The hinge seat 11 is mounted on the slide frame 2; the rotating unit 12 is connected to the connecting member 32; the hinge structure is connected between the rotating unit 12 and the hinge seat 11, and the hinge structure allows the rotating unit 12 to rotate in any direction relative to the hinge seat 11. This arrangement allows the rotating unit 12 to deflect in any direction relative to the hinge seat 11, so that the docking mechanism 3 can deflect in any direction relative to the slide frame 2, thereby realizing multi-angle deflection of the docking mechanism 3.

[0092] In this embodiment, the connecting bearing 13 includes a bearing outer ring 131 and a bearing inner ring 132 that can rotate at any angle relative to the bearing outer ring 131. The bearing outer ring 131 is installed on the hinge seat 11, and the rotating unit 12 is installed on the bearing inner ring 132. The connecting bearing 13 is used to realize the deflection of the rotating unit 12 relative to the hinge seat 11, so that the connecting bearing 13 can not only play a rotating role, but also play a good supporting role for the rotating unit 12, thereby ensuring the overall structural stability of the hinge assembly 1 and improving the deflection smoothness of the rotating unit 12.

[0093] In this embodiment, the connecting bearing 13 is a spherical bearing. In other embodiments, the connecting bearing 13 may also be a universal ball bearing or a bull's eye bearing, etc. In other embodiments, the articulated seat 11 and the rotating unit 12 may also be connected by other existing articulated structures, as long as any rotation angle of the rotating unit 12 relative to the articulated seat 11 can be achieved, such as a ball joint structure, etc.

[0094] Preferably, the rotating unit 12 includes a rotating shaft 121, which is slidably installed in the bearing inner ring 132 connected to the bearing 13, so that the rotating shaft 121 can not only deflect arbitrarily relative to the bearing outer ring 131 along with the bearing inner ring 132, but the rotating shaft 121 can also move along the axial direction of the bearing inner ring 132, thereby increasing the freedom of the rotating shaft 121 relative to the hinge seat 11, and then increasing the freedom of the docking mechanism 3 relative to the slide frame 2, so that the platform guide rail 31 can flexibly move to a position aligned with the shelf guide rail, thereby further improving the docking reliability of the platform guide rail 31 and the shelf guide rail.

[0095] In order to improve the installation convenience of the connecting bearing 13, a bearing installation hole 111 is provided on the articulated seat 11. The bearing installation hole 111 passes through the upper end surface of the articulated seat 11, and the connecting bearing 13 is installed in the bearing installation hole 111. Further, the bearing installation hole 111 is a stepped hole, which includes a large hole portion 1111 and a small hole portion 1112 connected in the axial direction. The aperture of the large hole portion 1111 is larger than the aperture of the small hole portion 1112. A limited step surface 1113 is formed between the large hole portion 1111 and the small hole portion 1112. The bearing outer ring 131 of the connecting bearing 13 is interference-fitted with the large hole portion 1111, and the lower end surface of the bearing outer ring 131 abuts against the limited step surface 1113.

[0096] The hinge assembly 1 also includes a bearing cover 15, which is connected to the upper end of the hinge seat 11 and presses against the upper end surface of the bearing outer ring 131, so as to press the bearing outer ring 131 between the bearing cover 15 and the limiting step surface 1113, so as to achieve the fixing of the bearing outer ring 131 of the connecting bearing 13 on the hinge seat 11. The bearing cover 15 includes an annular cover plate portion 151 and a pressure ring portion 152 vertically connected to the inner periphery of the cover plate portion 151, the cover plate portion 151 is detachably connected to the end surface of the hinge seat 11, and the pressure ring portion 152 is inserted into the large hole portion 1111 and abuts against the upper end surface of the bearing outer ring 131. The cover plate portion 151 and the hinge seat 11 can be connected by screws, but is not limited to screws.

[0097] In order to reduce the wear between the rotating shaft 121 and the connecting bearing 13, a sleeve 17 is fixedly installed on the inner ring 132 of the bearing. The sleeve 17 is made of a lubricating material, and the rotating shaft 121 is slidably installed in the sleeve 17. The setting of the sleeve 17 avoids the wear caused by the direct contact between the rotating shaft 121 and the connecting bearing 13, and the friction between the rotating shaft 121 and the sleeve 17 can be reduced according to the material selection of the sleeve 17, thereby improving the smoothness of the movement of the rotating shaft 121 relative to the sleeve 17.

[0098] In order to better fix the sliding sleeve 17 relative to the bearing inner ring 132, a clamping groove is provided on the outer wall of the sliding sleeve 17, and two clamping grooves are arranged at intervals along the axial direction of the sliding sleeve 17. Shaft stoppers 16 are respectively installed at the two clamping grooves. The two shaft stoppers 16 are respectively located outside the two ends of the bearing inner ring 132 and abut against the corresponding end faces of the bearing inner ring 132. The shaft stopper 16 can be a retaining spring or other structure that can achieve axial stoppering of the sliding sleeve 17 and the bearing inner ring 132.

[0099] It can be understood that the above-mentioned installation and limiting structure of the connecting bearing 13 on the hinge seat 11 and the installation and limiting structure of the sleeve 17 relative to the bearing inner ring 132 are exemplary structures, and any structure in the prior art that can realize the installation and limiting of the connecting bearing 13 can be applied to this embodiment.

[0100] like Fig.10 As shown, the rotating shaft 121 includes a main shaft portion 1211 and a connecting plate portion 1212 connected to the upper end of the main shaft portion 1211, the cross-sectional area of ​​the connecting plate portion 1212 is larger than the cross-sectional area of ​​the main shaft portion 1211, the main shaft portion 1211 is slidably inserted in the sliding sleeve 17, and the connecting plate portion 1212 is detachably connected to the connecting member 32, thereby reducing the outer diameter of the main shaft portion 1211 while increasing the contact area between the rotating shaft 121 and the connecting member 32, thereby ensuring the connection reliability and stability between the rotating unit 12 and the connecting member 32.

[0101] The cross-section of the connecting member 32 is preferably a U-shaped structure, that is, the connecting member 32 can be made of a U-shaped metal profile. The U-shaped groove of the connecting member 32 is arranged downward, and the connecting disk portion 1212 extends into the U-shaped groove of the connecting member 32 to achieve shielding of the connecting disk portion 1212, reduce the installation height of the docking mechanism 3 relative to the slide frame 2, and thus reduce the overall height of the docking device 100. The height of the connecting disk portion 1212 is preferably less than the groove depth of the U-shaped groove. The connecting disk portion 1212 preferably adopts a disc structure, and the connecting disk portion 1212 is connected to the connecting member 32 by a plurality of connecting screws arranged at intervals, and the connection position of the connecting screws and the connecting disk portion 1212 is preferably located on the outside of the main shaft portion 1211.

[0102] like Figure 4 and 9 As shown, the hinge assembly 1 also includes a reset assembly 14, which is used to restore or maintain the hinge assembly 1 to an initial state. The setting of the reset assembly 14 can cooperate with the elastic seat 4 to achieve the reset of the docking mechanism 3, increase the elastic restoring force acting on the docking mechanism 3, thereby improving the reset reliability of the docking mechanism 3, so as to improve the reliability and convenience of use of the docking device 100. In other embodiments, when the elastic restoring force provided by the elastic seat 4 to the carrier rail 31 is sufficient, the reset assembly 14 may not be set at the hinge assembly 1.

[0103] In this embodiment, the reset assembly 14 includes an elastic ring 141 and two fixed seats 142. The fixed seats 142 are fixed relative to the sliding frame 2. Both ends of the elastic ring 141 are wrapped around the two fixed seats 142. The elastic ring 141 has two elastic sections 1411 located between the two fixed seats 142. The rotating unit 12 is clamped between the two elastic sections 1411.

[0104] When the carrier guide rail 31 is deflected by external force, the rotating unit 12 is also driven to deflect. Since the rotating unit 12 is clamped between the two elastic segments 1411 of the elastic ring 141, the rotating elastic ring 141 of the rotating unit 12 is torsionally deformed, and the elastic ring 141 generates an elastic restoring force. When the carrier guide rail 31 is separated from the shelf guide rail, the external force acting on the carrier guide rail 31 is cancelled, and the rotating unit 12 is reset under the elastic restoring force of the elastic ring 141, so that the hinge assembly 1 returns to its initial state.

[0105] In this embodiment, since the elastic ring 141 is used to achieve reset, and the elastic ring 141 can produce torsional deformation in any direction, no matter the rotation unit 12 rotates in any direction relative to the slide frame 2, the elastic ring 141 can generate an elastic restoring force opposite to the corresponding deflection direction, so that the reset component 14 is better suitable for deflection reset at various rotation angles and rotation directions, and effectively ensures the reset effect of the reset component 14. In other embodiments, other structural forms of the reset component 14 can also be used to achieve the reset of the hinge assembly 1, such as using a spring, an elastic block made of elastic material, etc.

[0106] like Fig. 9 As shown, in this embodiment, the fixed seat 142 is located outside the hinge seat 11. Since the rotating unit 12 is arranged inside the hinge seat 11, an escape hole for the elastic ring 141 to pass through is opened on the outer wall of the fixed seat 142. This arrangement can avoid the problem that the hinge seat 11 is too large and the elastic component is difficult to disassemble and assemble due to the fixed seat 142 being installed inside the hinge seat 11, reduce the size of the hinge seat 11, and improve the overall compactness of the hinge assembly 1, and improve the convenience of disassembly and assembly of the reset assembly 14 and the hinge assembly 1.

[0107] like Figure 6 and Fig. 9 As shown, in order to improve the overall assembly and disassembly stability of the hinge assembly 1, the hinge assembly 1 further includes a fixed base plate 18, the fixed seat 142 and the hinge seat 11 are both mounted on the fixed base plate 18, and the fixed base plate 18 is detachably connected to the slide frame 2. As a result, after the hinge assembly 1 is assembled as a whole, the hinge assembly 1 can be installed between the connecting member 32 and the slide frame 2 through the connection between the fixed base plate 18 and the slide frame 2, and the connection between the upper end of the rotating unit 12 and the connecting member 32, thereby improving the overall assembly and disassembly convenience of the hinge assembly 1 and improving the assembly efficiency of the docking device 100.

[0108] The fixed base plate 18 is detachably connected to the mounting beam 22. Specifically, a plurality of connection threaded holes are provided at the bottom of the articulated seat 11, a connection through hole is provided on the fixed base, and a plurality of mounting base holes are provided on the mounting beam 22. The connection threaded holes, the connection through holes and the mounting base holes are respectively provided in a one-to-one correspondence, and the mounting base holes, the connection through holes and the connection threaded holes are arranged in alignment from bottom to top. The articulated seat 11, the fixed base plate 18 and the mounting beam 22 are connected by threaded fasteners which are sequentially provided in the mounting base holes, the connection through holes and the connection threaded holes. The mounting base holes are preferably countersunk holes, and the screw heads of the threaded fasteners are recessed in the countersunk holes.

[0109] like Figures 8 to 10As shown, the outer wall of the fixing seat 142 is provided with an annular groove 1423, and the corresponding end of the elastic ring 141 is sleeved in the annular groove 1423. The setting of the annular groove 1423 can ensure the installation stability of the elastic ring 141 on the fixing seat 142 and reduce the probability of the elastic ring 141 shaking. The groove width of the annular groove 1423 is preferably equal to the diameter of the elastic ring 141, so as to further reduce the probability of the elastic ring 141 shaking on the fixing seat 142, improve the setting stability of the elastic ring 141, and thus improve the reset reliability of the reset assembly 14.

[0110] The fixed seat 142 includes a fixed shaft 1421 and a pressing plate 1422. The fixed shaft 1421 has a first shaft portion and a second shaft portion connected in the axial direction. The first shaft portion is located at the upper end of the second shaft portion. The outer diameter of the first shaft portion is smaller than the outer diameter of the second shaft portion. The pressing plate 1422 is installed at the upper end of the first shaft portion and is spaced apart from the end face of the second shaft portion. The outer side wall of the first shaft portion, the upper end face of the second shaft portion and the pressing plate 1422 together form the above-mentioned annular groove 1423. This arrangement enables the pressing plate 1422 to press the elastic ring 141 tightly, thereby ensuring the stability of the setting of the elastic ring 141 in the annular groove 1423. At the same time, the groove width of the annular groove 1423 can be adjusted according to the structure of the pressing plate 1422 and the installation position on the first shaft portion, so that the fixed seat 142 can be adapted to the fixing of elastic rings 141 with different cross-sectional sizes.

[0111] In this embodiment, the pressure plate 1422 is attached to the upper end surface of the first shaft portion, and the pressure plate 1422 and the fixed shaft 1421 are connected by threaded parts inserted therethrough. Thus, the squeezing pressure of the pressure plate 1422 on the elastic ring 141 can be adjusted by adjusting the screwing depth of the threaded parts, thereby ensuring that the pressure plate 1422 can press the end of the elastic ring 141.

[0112] In order to better realize the installation of the fixed shaft 1421 on the fixed base, the fixed shaft 1421 also includes a third shaft portion, which is connected to the lower end of the second shaft portion, the outer diameter of the second shaft portion is larger than the outer diameter of the third shaft portion, and the fixed base is provided with an insertion hole, the third shaft portion is inserted into the insertion hole, and the lower end surface of the second shaft portion is fitted to the upper end surface of the fixed base, and the fixed shaft 1421 and the fixed base are connected by fasteners penetrating the insertion hole and the third shaft portion. The setting of the insertion hole and the third shaft portion can realize the installation positioning and limiting of the fixed shaft 1421 on the fixed base, thereby realizing the installation positioning of the reset component 14 on the fixed base, ensuring the reliability of the installation position of the reset component 14, and improving the assembly efficiency.

[0113] like Figures 10 to 13As shown, in order to ensure that the rotating unit 12 can be stably and reliably clamped between the two elastic segments 1411 of the elastic ring 141, a limiting groove group is provided on the rotating unit 12, and the limiting groove group is arranged one by one with the elastic ring 141. The limiting groove group includes two limiting through grooves 1221 arranged oppositely and at intervals, and the two elastic segments 1411 are respectively clamped in the two limiting through grooves 1221. The arrangement of the limiting through grooves 1221 is conducive to realizing the connection and positioning of the elastic ring 141 on the rotating unit 12, avoiding the elastic ring 141 from shaking in the vertical direction relative to the rotating unit 12 and moving in the direction perpendicular to the elastic segments 1411, and effectively ensuring the stability of the arrangement of the elastic ring 141 relative to the rotating unit 12, so that the rotation of the rotating unit 12 can drive the elastic ring 141 to twist synchronously, so that after the external force acting on the docking mechanism 3 is removed, the elastic restoring force generated by the elastic ring 141 can reliably drive the rotating unit 12 to reset, that is, drive the docking mechanism 3 to reset.

[0114] In this embodiment, the elastic segment 1411 is clamped by the limiting through groove 1221, which is conducive to the disassembly and assembly of the elastic ring 141 relative to the rotating unit 12, and is conducive to adjusting the pre-tightening force of the elastic ring 141 in the initial state. In other embodiments, other methods can also be used to clamp the rotating unit 12 by the elastic segment 1411, such as partially bonding the elastic segment 1411 to the rotating unit 12, or using fasteners to fix a part of the elastic segment 1411 to the rotating unit 12.

[0115] In the initial state, the two fixing seats 142 of each elastic ring 141 are symmetrically arranged relative to the axis of the rotating unit 12 to ensure the balance of the force exerted by the elastic ring 141 on the rotating unit 12 .

[0116] In order to improve the assembly convenience of the reset assembly 14 and the rotating unit 12, in this embodiment, the rotating unit 12 further includes a clamping seat 122, which is detachably connected to the lower end of the rotating shaft 121, and the clamping seat 122 is provided with the above-mentioned limit groove group. Therefore, the structure of the clamping seat 122 can be individually set according to the structure and number of the reset assembly 14, thereby improving the versatility of the structures such as the rotating shaft 121 and the connecting bearing 13, and by replacing the structure of the clamping seat 122, the reset assembly 14 of different sizes and models can be used, thereby improving the versatility of the hinge assembly 1 and reducing the use cost.

[0117] In order to improve the reset reliability of the hinge assembly 1, at least two reset assemblies 14 are provided, and all elastic rings 141 are arranged at intervals in the vertical direction, and all elastic rings 141 are arranged crosswise on the horizontal plane. That is, using multiple sets of reset assemblies 14 to reset the rotating unit 12 can increase the reset force applied by the elastic ring 141 to the rotating unit 12 after the rotating unit 12 rotates, ensuring that the rotating unit 12 can be reliably reset, thereby ensuring the reset reliability of the docking mechanism 3; at the same time, multiple elastic rings 141 are arranged crosswise on the horizontal plane, so that the forces applied by multiple elastic rings 141 to the rotating unit 12 are arranged at intervals in the circumferential direction of the rotating unit 12, thereby increasing the reset torque acting on the rotating unit 12 and improving the reset effect; at the same time, this arrangement also ensures that no matter which direction the rotating unit 12 rotates, there is an elastic ring 141 with a large torsional deformation, that is, at least one elastic ring 141 applies a relatively large reset torque to the rotating unit 12, further ensuring the reset of the rotating unit 12 at any rotation angle, and improving the use reliability of the docking mechanism 3.

[0118] In this embodiment, two groups of reset components 14 are provided to reduce the number of reset components 14 while ensuring the reset effect, simplify the structure of the hinge assembly 1, and improve the reset effect. In other embodiments, only one group of reset components 14 may be provided, or three or more groups may be provided.

[0119] like Fig.11 As shown, the elastic rings 141 of the two groups of reset assemblies 14 are arranged in a "cross" shape to improve the rationality of the structural layout, enhance the force stability of the rotating unit 12, and improve the reset effect. Preferably, one of the elastic rings 141 is arranged along the first direction, and the other elastic ring 141 is arranged along the second direction. The elastic ring 141 arranged along the first direction can generate a larger elastic restoring force when the docking mechanism 3 rotates around the first direction, and the elastic ring 141 arranged along the second direction can generate a larger elastic restoring force when the docking mechanism 3 rotates around the second direction.

[0120] like Fig.11 , Fig.14 and Fig.15 As shown, the fixed base plate 18 is preferably in a "cross" shaped plate structure, and the four fixed seats 142 of the two sets of reset assemblies 14 are respectively installed at the four corners of the fixed base plate 18, so as to achieve the installation of the fixed seats 142 on the fixed base plate 18 while reducing the overall size of the fixed base plate 18, thereby reducing the weight and cost of the hinge assembly 1.

[0121] The lower end surface of the articulated seat 11 is provided with a seat installation cavity 112, the upper end of the seat installation cavity 112 is connected to the bearing installation hole 111, and the clamping seat 122 is installed in the seat installation cavity 112. In this embodiment, the articulated seat 11 is a hexahedral structure, and one side of the hexahedral structure is perpendicular to the first direction. Each side of the articulated seat 11 is provided with an escape opening 113 connected to the seat installation cavity 112, and the two ends of each elastic ring 141 pass through two oppositely arranged escape openings 113. In other embodiments, the articulated seat 11 can also be a cylindrical structure.

[0122] The avoidance opening 113 passes through the lower end of the seat installation cavity 112 , that is, the opening of four avoidance openings 113 forms four rectangularly distributed supporting feet at the lower end of the hinged seat 11 , and the lower ends of the four supporting feet are supported on and connected to the fixed base plate 18 .

[0123] like Figures 11 to 13 As shown, in this embodiment, the upper end surface of the clamping seat 122 is provided with a limit groove group with an upper opening, and the lower end surface of the rotating shaft 121 blocks the upper end opening of the limit groove group. The lower end surface of the clamping seat 122 is provided with a limit groove group with a lower opening, and the rotating unit 12 also includes a clamping plate 123, which is detachably connected to the lower end of the clamping seat 122 and closes the lower end opening of the limit groove group. That is, in this embodiment, the two elastic segments 1411 of the elastic ring 141 located on the upper side are respectively penetrated in the two limit grooves 1221 of the upper limit groove group, and are clamped between the groove bottom of the limit groove 1221 and the end surface of the rotating shaft 121; the two elastic segments 1411 of the elastic ring 141 located on the lower side are respectively penetrated in the two limit grooves 1221 of the lower limit groove group, and are clamped between the groove bottom of the limit groove 1221 and the pressing plate 1422.

[0124] The above arrangement can enhance the convenience of opening the limiting groove group, and when ensuring that the elastic section 1411 can be inserted into the limiting groove 1221, the elastic section 1411 can be clamped in the limiting groove 1221 to prevent the elastic section 1411 from shaking in the limiting groove 1221, thereby improving the stability of the elastic ring 141 on the rotating unit 12. The two limiting grooves 1221 in the same limiting groove group are arranged in parallel and at intervals, so that the two elastic sections 1411 are arranged in parallel between the rotating unit 12.

[0125] In this embodiment, the width of the limiting slot 1221 is equal to or slightly smaller than the outer diameter of the elastic section 1411, so that the elastic section 1411 is clamped between the slot walls of the two limiting slots 1221, ensuring that the rotation of the rotating unit 12 can synchronously drive the elastic section 1411 to twist. The depth of the limiting slot 1221 is equal to or slightly smaller than the outer diameter of the elastic section 1411.

[0126] Furthermore, the distance between the two elastic sections 1411 gradually decreases from the fixing seat 142 to the rotating unit 12 , thereby further enhancing the clamping effect of the two elastic sections 1411 on the rotating unit 12 and ensuring the stability of the setting of the elastic sections 1411 on the rotating unit 12 .

[0127] like Fig.13 and Fig.16 As shown, in this embodiment, the groove wall of each limiting through groove 1221 is connected to the outer side wall of the clamping seat 122 by a smooth arc transition to reduce the wear of the elastic section 1411 and increase the service life of the reset assembly 14.

[0128] In this embodiment, the clamping block includes two U-shaped clamping parts, wherein the U-shaped groove opening of one clamping part is set upward, and the U-shaped groove opening of the other clamping part is set downward, and the two clamping parts are arranged to intersect vertically, and each clamping part includes a bottom and two side parts connected to the two ends of the bottom, and two limiting grooves 1221 are respectively formed between the bottom of each clamping part and the two side parts of the other clamping part.

[0129] In other embodiments, the clamping seat 122 may be a rectangular block structure, with a set of limit grooves at the upper end and another set of limit grooves at the lower end. The present invention does not limit the specific structure of the clamping seat 122, as long as the limit grooves can be formed on the clamping seat 122.

[0130] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A docking device, characterized in that: include: A sliding frame (2) is used for being slidably connected to a platform frame (200) of the vehicle platform; A docking mechanism (3) comprising two platform guide rails (31) extending in a first direction and arranged opposite to each other, wherein the platform guide rails (31) are used to dock with the shelf guide rails; The connecting mechanism (3) is flexibly connected to the upper side of the slide frame (2) through the connecting mechanism, and the connecting mechanism allows the connecting mechanism (3) to rotate in any direction relative to the slide frame (2) when subjected to a connecting extrusion force, and to return to an initial state relative to the slide frame (2) when the connecting extrusion force is removed.

2. The docking device according to claim 1, characterized in that: The connecting mechanism comprises: An elastic seat (4), each of the platform guide rails (31) is connected to the slide frame (2) via the elastic seat (4), and the elastic seat (4) is made of an elastic material; A hinge assembly (1), a connecting piece (32) is connected between the two platform guide rails (31), the hinge assembly (1) is connected between the connecting piece (32) and the slide frame (2), and the hinge assembly (1) allows the connecting piece (32) to rotate in any direction relative to the slide frame (2).

3. The docking device according to claim 2, characterized in that: The hinge assembly (1) comprises: A hinge seat (11) mounted on the slide frame (2); A rotating unit (12) connected to the connecting member (32); The hinge structure is connected between the rotating unit (12) and the hinge seat (11), and the hinge structure allows the rotating unit (12) to rotate in any direction relative to the hinge seat (11).

4. The docking device according to claim 3, characterized in that: The hinge structure comprises a connecting bearing (13), wherein the connecting bearing (13) comprises a bearing outer ring (131) and a bearing inner ring (132) which can rotate at any angle relative to the bearing outer ring (131), the bearing outer ring (131) is mounted on the hinge seat (11), and the rotating unit (12) is mounted on the bearing inner ring (132).

5. The docking device according to claim 4, characterized in that: The rotating unit (12) is slidably inserted into the bearing inner ring (132).

6. The docking device according to claim 3, characterized in that: The hinge assembly (1) further comprises a reset assembly (14), wherein the reset assembly (14) is used to maintain or restore the hinge assembly (1) to an initial state.

7. The docking device according to claim 6, characterized in that: The reset assembly (14) comprises an elastic ring (141) and two fixed seats (142); the fixed seats (142) are fixed relative to the slide frame (2); two ends of the elastic ring (141) are wound around the two fixed seats (142); the elastic ring (141) has two elastic sections (1411) which are located between the two fixed seats (142) and are tensioned; the rotating unit (12) is clamped between the two elastic sections (1411).

8. The docking device according to claim 7, characterized in that: The rotating unit (12) is provided with a limiting groove group, the limiting groove group is arranged in a one-to-one correspondence with the elastic ring (141), the limiting groove group comprises two limiting through grooves (1221) arranged opposite to each other and spaced apart, and the two elastic sections (1411) are respectively clamped in the two limiting through grooves (1221); And / or, the distance between the two elastic sections (1411) gradually decreases from the fixing seat (142) to the rotating unit (12).

9. The docking device according to claim 8, characterized in that: The rotating unit (12) comprises a detachably connected rotating shaft (121) and a clamping seat (122); the rotating shaft (121) is connected to the hinge structure and the connecting member (32); and the clamping seat (122) is provided with the limiting groove group.

10. The docking device according to claim 9, characterized in that: The upper end surface of the clamping seat (122) is provided with a limiting groove group with an upper opening, and the lower end surface of the rotating shaft (121) blocks the upper end opening of the limiting groove group; And / or, the lower end surface of the clamping seat (122) is provided with a limit groove group with a lower opening, and the rotating unit (12) further includes a clamping plate (123), and the clamping plate (123) is detachably connected to the lower end of the clamping seat (122) and closes the lower end opening of the limit groove group.

11. The docking device according to claim 7, characterized in that: The rotating unit (12) is inserted into the hinge seat (11), the fixed seat (142) is located outside the hinge seat (11), and the side wall of the hinge seat (11) is provided with an escape opening (113) for the elastic ring (141) to pass through; And / or, an outer side wall of the fixing seat (142) is provided with an annular groove (1423), and a corresponding end of the elastic ring (141) is sleeved in the annular groove (1423).

12. The docking device according to any one of claims 7 to 11, characterized in that: At least two of the reset assemblies (14) are provided, and all of the elastic rings (141) are arranged at intervals in the vertical direction, and all of the elastic rings (141) are arranged crosswise on the horizontal plane.

13. The docking device according to claim 12, characterized in that: Two resetting components (14) are provided, one of the elastic rings (141) is provided along the first direction, and the other elastic ring (141) is provided along a second direction, wherein the second direction is perpendicular to the first direction.

14. The docking device according to any one of claims 7 to 11, characterized in that: The hinge assembly (1) further comprises a fixed base plate (18), the fixed seat (142) and the hinge seat (11) are both mounted on the fixed base plate (18), and the fixed base plate (18) is detachably connected to the slide frame (2).

15. The docking device according to any one of claims 2 to 11, characterized in that: The connecting member (32) is connected to the middle part of the carrier guide rail (31) along the length direction, the connecting member (32) extends along a second direction, the second direction is perpendicular to the first direction, and the hinge assembly (1) is connected to the middle position of the connecting member (32) in the length direction.

16. A vehicle carrier, comprising a carrier frame (200), characterized in that: It also comprises a docking device as described in any one of claims 1 to 15, wherein the docking device can be slidably mounted on the platform frame (200) along the first direction.

17. A layer-changing elevator, characterized in that: Includes the vehicle carrier as described in claim 16.

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