Composite multifunctional load bearing pallet

Abstract

The application discloses a composite multifunctional bearing tray, and relates to the technical field of bearing trays, which comprises a tray body, supporting legs, a storage mechanism and a limiting mechanism, the tray body is provided with a plurality of supporting legs, the storage mechanism for limiting the relative position of a bearing object and the tray body is arranged between the upper end of the tray body and the supporting legs, and the limiting mechanism for limiting the relative position of adjacent tray bodies is arranged between the supporting legs and the tray body. The adjacent tray bodies and their bearing objects are respectively equipped with corresponding limiting structures, the position of the tray bodies in the storage and transfer process is fixed, and the stacking and stacking of the tray bodies and the stability of the bearing of goods are improved.

Description

Technical Field

[0001] This invention relates to the field of pallet technology, and in particular to a composite multifunctional pallet. Background Technology

[0002] Pallets are horizontal platform devices used for the unitization, stacking, handling, and transportation of goods and products as unit loads. They were primarily developed to facilitate efficient logistics, serving as a connecting point throughout all stages of the modern logistics system. However, in practice, inconsistencies in pallet specifications prevent their widespread use within the logistics chain, limiting their application to internal company use. Furthermore, existing pallets typically require stacking during storage, often using direct contact to secure the pallets and goods, leading to separation and misalignment issues during transport.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent document 201010175319.X discloses a combined pallet, which consists of three parts: pallet slats, connectors, and square tubes. The square tubes are perpendicularly connected to the upper and lower pallet slats in space via connectors. The connectors have mutually perpendicularly distributed buckles on their upper and lower surfaces, and the square tubes have buckle grooves on their upper and lower surfaces that cooperate with the connectors. The pallet slats also have buckle grooves that cooperate with the connectors.

[0004] The above solution has solved the problem of inconsistent pallet specifications and poor adaptability for storage and transportation to a certain extent. However, the solution still has many shortcomings, such as the tendency for misalignment to occur during storage stacking and transfer. Summary of the Invention

[0005] The purpose of this invention is to provide a composite multifunctional load-bearing pallet to solve the problems existing in the prior art. It has the advantages of good structural stability and wide adaptability, and also has good scalability and continuity.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a composite multifunctional load-bearing pallet, comprising...

[0007] The pallet body includes side panels, a top plate, and a bottom plate. The side panels, connected and fixed end-to-end, form the frame of the pallet body. The bottom plate and top plate are respectively installed from bottom to top on the inner side of the frame formed by the side panels. The top plate has several support holes.

[0008] The support leg is located at the corner of the pallet body. The support leg includes an integrally connected main guide opening and a support body. The main guide opening faces upwards and is located at the corner of the pallet body. The bottom of the main guide opening is connected to the support body, and the bottom of the support body is closed by a cover plate. The main guide opening is funnel-shaped.

[0009] A storage mechanism is provided on the pallet body for limiting and storing goods. The storage mechanism includes a support tube and a support rod. The support tube is detachably inserted into the main guide port, and the support rod is detachably inserted into the support hole.

[0010] A limiting mechanism is used to limit the relative orientation of two adjacent pallet bodies.

[0011] Preferably, multiple top plates are laid side by side within the frame formed by the surrounding panels, and each top plate has several support holes; and the specifications of each top plate are the same, and the positions of the support holes correspond one-to-one.

[0012] Preferably, both the top plate and the bottom plate are C-shaped plates, and several vertical cylinders are arranged at equal intervals between the top plate and the bottom plate, with each vertical cylinder corresponding to and connected to the support hole.

[0013] Preferably, the main guide port is made of four trapezoidal plates joined and welded together. The main guide port is used to guide the insertion of the support tube or support leg. The upper end of the main guide port is flush with the top plate of the pallet body. The support body is made of a vertically arranged rectangular tube.

[0014] Preferably, a triangular plate is fixed at the bottom corner of the pallet body for the support body to pass through; when the two pallet bodies are extended continuously, the corresponding support legs on the bottom surfaces of the two pallet bodies and the triangular plate are welded together.

[0015] Preferably, the bottom of the support leg is equipped with casters, and the upper ends of two adjacent support legs are connected by push rods, which are connected by handrails.

[0016] Preferably, it further includes a limiting mechanism, the limiting mechanism including a first limiting component, the first limiting component including a gasket fixed to the lower end of the support body, the bottom of the support body having a notch for engaging the cover plate, the gasket being fixed to the bottom of the cover plate; the gasket is used to fit into the main guide opening of the lower tray.

[0017] Preferably, the system further includes a limiting mechanism, which includes a second limiting component. The second limiting component includes a limiting crossbar, a main base, a limiting longitudinal bar, and a secondary base. The limiting crossbar is arranged parallel to the bottom of the short side of the pallet body. The bottom of the support leg at the corner of the pallet body is inserted and fixed in the main base on the limiting crossbar. The two ends of the two limiting crossbars are respectively connected through the limiting longitudinal bar, and the limiting crossbar is fixed in the secondary base on the limiting longitudinal bar.

[0018] Preferably, the system further includes a limiting mechanism, which includes a third limiting component. The third limiting component includes an upright, a shelf crossbar, and a shelf longitudinal bar. The bottom end of the upright is inserted into the main guide opening. The shelf crossbar is arranged parallel to the top of the short side of the pallet body. The top end of the upright is inserted into a main bar seat fixed on the shelf crossbar. The two ends of the two shelf crossbars are respectively connected through the shelf longitudinal bar. The shelf longitudinal bar is provided with a secondary bar seat for inserting the main bar seat. The upper end of the secondary bar seat is inserted into and fixed with a shelf base. The upper end of the shelf base has a funnel-shaped secondary guide opening for inserting the support legs of the upper pallet.

[0019] The present invention achieves the following beneficial technical effects compared to the prior art:

[0020] The composite multifunctional pallet of this invention includes a pallet body, support legs, a storage mechanism, and a limiting mechanism. The pallet body has several support legs. A storage mechanism is provided between the upper end of the pallet body and the support legs to limit the relative position of the load and the pallet body. A limiting mechanism is provided between the support legs and the pallet body to limit the relative position of adjacent pallet bodies. Adjacent pallet bodies and their loads are respectively equipped with corresponding limiting structures to ensure their fixed position during storage and transportation, thereby improving the stability of pallet stacking and cargo carrying. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0024] Figure 3 This is a schematic diagram of the storage mechanism of the present invention;

[0025] Figure 4 This is another structural schematic diagram of the storage mechanism of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the first limiting component of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the second limiting component of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the third limiting component of the present invention;

[0029] Figure 8 This is a schematic diagram of the trolley structure of the present invention;

[0030] Figure 9 This is a structural diagram of the pallet plate of the pallet body of the present invention;

[0031] Figure 10 This is a welding adaptation diagram of the tray body of the present invention;

[0032] Figure 11 The diagram shows the connection and stress distribution between the top and bottom plates.

[0033] Figure 12 This is a diagram showing the stress nodes of the top and bottom plates;

[0034] Figure 13 Diagram showing the connection and stress distribution of the vertical tube;

[0035] Figure 14 This is a diagram showing the stress nodes of the vertical tube.

[0036] Figure 15 This is a diagram showing the force distribution nodes at the supporting leg.

[0037] Figure 16 This is a top view of the overall stress nodes of a composite multi-functional load-bearing pallet;

[0038] Figure 17 This is a side view of the overall stress nodes of a composite multi-functional load-bearing pallet.

[0039] Figure 18 A 3D diagram of the overall stress nodes of a composite multi-functional load-bearing pallet;

[0040] Figure 19 A schematic diagram of a pallet whose main body is a single piece of board;

[0041] Figure 20 This diagram illustrates how to secure the pallet protective feet with insert rods when the edge insertion holes of the pallet are not occupied.

[0042] Figure 21 This is a schematic diagram of a tray protective foot of type one.

[0043] Figure 22 Diagram showing how to install tray protective feet when the tray edge sockets are not occupied and no insert rod is needed;

[0044] Figure 23 This is a schematic diagram of a tray protective foot in Form 1 when the edge sockets of the tray are not occupied and no insert is needed.

[0045] Figure 24 A diagram illustrating the installation of tray protective feet when the edge insertion holes of the tray are occupied by insertion rods;

[0046] Figure 25 A schematic diagram of a tray protective foot in form one when the edge insertion holes of the tray are occupied by the insertion rod;

[0047] Figure 26 A diagram illustrating the use of four-legged uprights to secure the protective feet of a pallet. Figure 1 ;

[0048] Figure 27 A diagram illustrating the use of four-legged uprights to secure the tray's protective feet. Figure 2 ;

[0049] Figure 28 for Figure 26 and 27 Schematic diagram of the tray protection feet in Form 2;

[0050] Figure 29 A schematic diagram illustrating the use of four-legged uprights to secure the protective feet of a polygonal pallet;

[0051] Figure 30 for Figure 29 Schematic diagram of the tray protection feet in Form 3;

[0052] Figure 31 A schematic diagram for installing pallet protective feet around the pallet when the four corner holes of the pallet are not occupied and the four corner posts are not required;

[0053] Figure 32 for Figure 31 Schematic diagram of the tray protection feet in Form 4;

[0054] Figure 33 This is a split view of the pallet body, the guardrail fixing feet, and the detachable guardrail in Example 7;

[0055] Figure 34 This is a schematic diagram of the pallet body, guardrail fixing feet, and detachable guardrail assembled into a box pallet in Example 7;

[0056] Figure 35 A schematic diagram illustrating the installation method of the fence fixing feet;

[0057] Figure 36This is a split view of the pallet body, the netting fixing feet, and the foldable netting in Example 8;

[0058] Figure 37 This is a schematic diagram of the pallet body, the mesh fixing feet, and the foldable mesh assembled into a box pallet in Example 8;

[0059] Figure 38 A schematic diagram showing the installation method of the fixing feet for the perimeter fence;

[0060] In the diagram, 1. Pallet body; 11. Side panel; 12. Top plate; 13. Bottom plate; 14. Triangular plate; 15. Fixing pad; 16. Protective pad; 2. Support leg; 21. Main guide opening; 22. Universal caster; 23. Trolley rod; 24. Handrail rod; 25. Handrail base; 3. Storage mechanism; 31. Support tube; 32. Support hole; 33. Support rod; 4. First limiting assembly; 41. Gasket; 5. Second limiting assembly; 51. Limiting crossbar; 52. Main base; 53. Limiting longitudinal bar; 54. Secondary base; 6. Third limiting assembly; 61. Upright; 62. Shelf crossbar; 63. Main rod seat; 64. Shelf longitudinal bar; 65. Secondary rod seat; 66. Shelf base; 67. Secondary guide opening. Detailed Implementation

[0061] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0062] The purpose of this invention is to provide a composite multifunctional load-bearing pallet to solve the problems existing in the prior art. It has the advantages of good structural stability and wide adaptability, and also has good scalability and continuity.

[0063] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0064] like Figures 1-38 As shown, the present invention provides a composite multifunctional load-bearing pallet. Figures 1-2The pallet includes a pallet body 1 with several support legs 2. The support legs 2 maintain a gap between the lower end of the pallet body 1 and the horizontal plane, facilitating transport by forklifts or trolleys. A storage mechanism 3 is provided between the upper end of the pallet body 1 and the support legs 2 to restrict the relative position of the load and the pallet body 1, preventing slippage during storage and transport. A limiting mechanism is provided between the support legs 2 and the pallet body 1 to restrict the relative position of adjacent pallet bodies 1. This limiting mechanism can be optionally installed according to actual needs, making it suitable for different environments.

[0065] Specifically, the support leg 2 is a vertically arranged rectangular tube, usually a square tube, and fixed at the corner of the pallet body 1; the lower end of the support leg 2 is closed by a cover plate. The upper end of the support leg 2 is connected to a funnel-shaped main guide port 21, and the port of the main guide port 21 is flush with the upper end of the pallet body 1. The main guide port 21 is made of several trapezoidal plates welded together, used to guide the support legs 2 to be inserted into each other, and to quickly position them when the pallet bodies 1 are stacked. The main guide port 21 is mainly used for limiting mechanisms to realize the quick insertion and fixing of each rod.

[0066] like Figure 3-4 As shown, when the load is placed on the pallet body 1, the storage mechanism 3 restricts its horizontal orientation. The storage mechanism 3 specifically includes a support tube 31 that is inserted and fixed to the support leg 2. The support tube 31 is a rectangular tube and is pressed tightly against the inner side of the support leg 2. The upper end of the pallet body 1 has support holes 32 arranged in a matrix. The support holes 32 are inserted and fixed or threaded to cylindrical support rods 33.

[0067] like Figure 1 and Figure 19 As shown, the pallet body 1 can be assembled from multiple panels of the same specifications or made from a single whole panel. When multiple panels of the same specifications are assembled, the holes on the panels are consistent, which facilitates processing. In actual use, either assembled panels or a single whole panel can be selected as needed.

[0068] When regular loads such as boxes are placed on the pallet body 1, the support tubes 31 fixed at the corners of the pallet body 1 can effectively limit their movement. When multiple irregular loads are placed on the pallet body 1, the support rods 33 are inserted and fixed into the appropriate support holes 32 to restrict the horizontal freedom of the loads. The support tubes 31 can also be combined and stacked with another pallet body 1 to achieve multi-layer storage of loads.

[0069] Furthermore, unlike the storage mechanism 3 which limits the position of the load, the limiting mechanism in this application is optionally equipped to realize the position of the pallet body 1 and lock it in place as needed. The limiting mechanism includes a first limiting component 4 that limits the relative direction of the pallet bodies 1 stacked vertically; or, a second limiting component 5 that limits the relative position of the pallet bodies 1 arranged horizontally; or, the pallet bodies 1 are stacked vertically to form a frame structure through a third limiting component 6.

[0070] like Figure 2 and Figure 5 As shown, the first limiting component 4 includes a gasket 41 fixed to the lower end of the support leg 2 of the pallet body 1. The gasket 41 is fixedly connected to the cover plate at the bottom of the support leg 2 by means of riveting or other methods. The lower end of the support leg 2 has a notch for the cover plate to engage. The gasket 41 is fitted into the upper opening of the support leg 2 of another pallet body 1 to prevent loosening. The support legs 2 of the pallet bodies 1 arranged adjacent to each other correspond one-to-one in the vertical direction. The specifications of each pallet body 1 are consistent, and the support legs 2 can still keep the pallet bodies 1 relatively isolated after stacking.

[0071] like Figure 1-2 As shown, the pallet body 1 is typically made of stainless steel or aluminum profiles, specifically including circumferentially distributed perimeter panels 11. The perimeter panels 11 are welded and fixed by horizontal and vertical plates and fitted with corresponding reinforcing plates. The upper end of the pallet body 1 is enclosed by several adjacently arranged top plates 12, each top plate 12 tightly fitted and welded to the perimeter panels 11 at both ends. The lower end of the pallet body 1 is provided with bottom plates 13 corresponding to the top plates 12, serving a load-bearing function. The top plates 12 and bottom plates 13 are C-shaped plates with several vertical cylinders arranged at equal intervals between them.

[0072] like Figure 11 As shown, the top plate 12 and the bottom plate 13 are welded together with C-shaped folds to form a truss structure. The direction indicated by the arrow is the direction of force. Figure 12 In the diagram, the dots represent the welding positions of the top plate 12 and the bottom plate 13. Each welding position serves as a force-bearing node, transmitting the force through the ribs to the adjacent nodes, and finally transmitting the force to the two side plates of the pallet body 1.

[0073] Furthermore, such as Figures 13-14 As shown, vertical cylinders are equidistantly arranged between the top plate 12 and the bottom plate 13, with each cylinder corresponding to a support hole 32 in the storage mechanism 3 for insertion and fixing of the support rod 33. After the vertical cylinders are welded to the top plate 12 and the bottom plate 13, they form... Figure 13 The truss structure in the middle, Figure 14 The dots in the diagram represent welding positions. Each welding position serves as a stress node, transmitting the force through the reinforcing bars to adjacent nodes, and ultimately transferring the force to the two side panels of the pallet body 1.

[0074] like Figure 2 and Figure 15 A triangular plate 14 is fixed at the lower corner of the pallet body 1 for the support leg 2 to pass through. The triangular plate 14 locally reinforces the pallet body 1 and increases the welding points between the pallet body 1 and the support leg 2. The support leg 2 consists of a thick-walled square tube, a funnel-shaped main guide opening 21, and the triangular plate 14, which are welded together to form the support leg. Figure 15 In the diagram, the dots represent the stress nodes around the leg. This layered structure distributes the load in layers, making the support leg 2 more stable and capable of bearing heavy loads.

[0075] The above-mentioned nodal force diagrams constitute the overall force diagram of the pallet, as shown in the figure. Figure 16-18 As shown, the vertical tube is welded to the top plate 12 and the bottom plate 13 to form a truss structure. The top plate 12 and the bottom plate 13 are welded with C-shaped folded edges to form a truss structure. The thick-walled square tube, the funnel-shaped main guide port 21 and the triangular plate 14 in the support leg 2 form a closed-loop force-bearing truss structure. The force applied to the surface of the pallet is evenly distributed to the four support legs 2 of the pallet.

[0076] from Figure 9 As can be seen, a fixing pad 15 and a protective pad 16 are sequentially laid on the upper part of the pallet body 1. The fixing pad 15 can be made of hard boards such as wood, wear-resistant plastic boards, or PP boards. The number of layers of the fixing pad 15 can be increased or decreased as needed. The protective pad 16 is made of soft boards such as pearl cotton or corrugated paper. The corners of the fixing pad 15 and the protective pad 16 are respectively provided with notches that correspond to the support legs 2, which do not affect the insertion and fixing of the storage mechanism 3 and the limiting mechanism of the pallet body 1.

[0077] Example 2

[0078] like Figure 6 As shown, the structure, principle and implementation steps of this embodiment are similar to those of Embodiment 1. The difference is that this embodiment uses the second limiting component 5 to achieve relative positioning of the pallet bodies 1 arranged adjacent to each other on the left and right. The second limiting component 5 ensures that the upper end of the pallet body 1 is flush, which is suitable for placing larger volume loads.

[0079] The second limiting component 5 includes a horizontally arranged limiting crossbar 51, which is typically parallel to the short side of the pallet body 1. The limiting crossbar 51 has a main base 52 opposite to the support leg 2. The upper end of the main base 52 is inserted and fixed to the support leg 2. The limiting crossbar 51 is located below the pallet body 1, and its main base 52 is typically in direct contact with the ground. The support leg 2 is locked and fixed to the main base 52 of the limiting crossbar 51 by threaded parts or pins. The lower side of the support leg 2 has a corresponding pin hole, and the main base 52 has a socket for threaded parts or pins to be installed.

[0080] The ends of the limiting crossbars 51 are connected to limiting longitudinal bars 53 arranged perpendicularly to them. The limiting longitudinal bars 53 are parallel to the long side of the pallet body 1 and have a sub-base 54 for inserting the ends of the limiting crossbars 51. The sub-base 54 is inserted and fixed to the end of another limiting crossbar 51. The limiting crossbars 51 are locked and fixed to the sub-base 54 of the limiting longitudinal bars 53 by threaded parts or pins. The limiting crossbars 51 are successively connected to the limiting longitudinal bars 53 and their sub-bases 54, thereby connecting the pallet body 1 into a long strip shape, which is suitable for storing large-volume loads.

[0081] Example 3

[0082] like Figure 7 As shown, the structure, principle and implementation steps of this embodiment are similar to those of Embodiment 1. The difference is that in this embodiment, the third limiting component 6 is used to combine the pallet body 1 into a frame structure, which, together with the storage mechanism 3, realizes three-dimensional storage of multiple loads.

[0083] The third limiting component 6 includes uprights 61 vertically inserted into the support legs 2, wherein the uprights 61 can also be directly replaced by the support tubes 31 in the storage mechanism 3. A shelf crossbar 62 is connected between the top ends of the uprights 61. The shelf crossbar 62 has a main support 63 for the top ends of the uprights 61 to be inserted and fixed. A shelf longitudinal bar 64 is connected between the ends of the shelf crossbar 62. The shelf longitudinal bar 64 has a secondary support 65 for the main support 63 to be inserted and fixed. The shelf crossbar 62 and the shelf longitudinal bar 64 combine to form a frame structure, which, together with the uprights 61 below and the pallet body 1, forms a frame structure. A shelf base 66 is additionally inserted and fixed to the upper end of the secondary support 65. The upper end of the shelf base 66 has a funnel-shaped secondary guide opening 67 for the support leg 2 of another pallet body 1 to be inserted. Multiple frame structures are combined by the shelf base 66, thereby realizing three-dimensional storage of goods.

[0084] Example 4

[0085] like Figure 8 As shown, the structure, principle, and implementation steps of this embodiment are similar to those of Embodiment 1. The difference lies in that, in this embodiment, the lower ends of the support legs 2 of the pallet body 1 are respectively fixed with universal casters 22, and the upper ends of the support legs 2 are inserted and fixed with trolley rods 23. The trolley rods 23 can also be replaced by support tubes 31. The upper ends of the trolley rods 23 are connected by handrails 24 to form a rectangular frame. The handrails 24 have handrail bases 25 for the trolley rods 23 to be inserted and fixed. The operator can directly push the pallet body 1 to move, improving the flexibility of cargo transfer.

[0086] Example 5

[0087] like Figure 10As shown, the structure, principle and implementation steps of this embodiment are similar to those of Embodiment 1. The difference is that in this embodiment, the main guide port 21 of the pallet body 1 and the triangular plate 14 connected to the support leg 2 are welded and fixed to the main guide port 21 and triangular plate 14 of another pallet body 1 respectively. Multiple pallet bodies 1 are spliced ​​and welded together from different directions, which can bear a larger load and larger items.

[0088] The support leg 2, the triangular plate 14, and the main guide port 21 are all welded and fixed with 4mm thick plates. The load-bearing capacity of the pallet body 1 will not decrease due to its increased size. The increased load-bearing area of ​​the pallet body 1 improves its adaptability.

[0089] In summary, the principle of this embodiment is as follows: after the load is placed on the upper part of the pallet body 1, the storage mechanism 3 uses a tube insertion method to achieve multi-point horizontal limiting; the limiting component locks and limits the pallet body 1 when it is vertically or horizontally arranged, thereby expanding the pallet's carrying capacity or reducing the space required for its storage. The two work together to ensure the stability of the pallet body 1 and its load during storage and transportation.

[0090] Example 6

[0091] like Figure 20-32 As shown, in this embodiment, the outer periphery of the pallet body is also provided with pallet protective feet, and there are various forms of pallet protective feet.

[0092] in Figure 20-25 The image shows one type of tray protection foot. When the tray edge sockets are not occupied, they can be used as shown in the image. Figure 20 The insert rod is used to secure the tray's protective feet; it is used when the tray edge sockets are not occupied and the insert rod is not needed. Figure 22 Install the tray protective feet as shown; when the edge insertion holes of the tray are occupied by the insertion rod, use the following method: Figure 24 Install the tray protection feet as shown.

[0093] like Figure 26-28 The image shows a second type of pallet protective foot, which can be secured using four-legged posts; as shown... Figures 29-30 The image shows type three of pallet protection feet, which uses four-legged posts to fix the polygonal pallet protection feet; as shown... Figures 31-32 The image shows form four of the pallet protection feet, which can be used when the four foot holes of the pallet are not occupied and the four corner posts are not required. Figures 31-32 Install the tray protective feet around the tray as shown.

[0094] Example 7

[0095] like Figure 33-35As shown, in this embodiment, the pallet body is also surrounded by a pallet fence. Utilizing the special load-bearing structure of the pallet's four supporting legs, the fence's fixed feet and detachable fence can be assembled into a box-like pallet. Alternatively, square tubes can be inserted to replace the fence's fixed feet, relying on the "special load-bearing structure of the pallet's four supporting legs," becoming the carrier for connecting the detachable fence, thereby enabling pallet stacking solutions. Figure 35 As shown, the fence fixing feet are fixed to the detachable fence with screws or pins, and the disassembly and assembly process is simple and quick.

[0096] Example 8

[0097] like Figures 36-38 As shown, in this embodiment, the pallet body is also surrounded by a pallet fence. Utilizing the special load-bearing structure of the pallet's four supporting legs, a foldable wire mesh pallet can be assembled using the fence's fixing feet and foldable mesh. Alternatively, square tubes can be inserted to replace the fence fixing feet, relying on the "special load-bearing structure of the pallet's four supporting legs," becoming the carrier for connecting the foldable mesh, thereby enabling pallet stacking solutions. Figure 38 As shown, the fence fixing feet are fixed to the pallet feet with screws or pins, making the assembly and disassembly process simple and quick. The foldable fence has a small storage area after disassembly.

[0098] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0099] Although this document frequently uses terms such as pallet body 1, side panel 11, top plate 12, bottom plate 13, triangular plate 14, fixing pad 15, protective pad 16, support leg 2, main guide opening 21, omnidirectional roller 22, trolley rod 23, handrail rod 24, handrail base 25, storage mechanism 3, support tube 31, support hole 32, support rod 33, first limiting component 4, gasket 41, second limiting component 5, limiting crossbar 51, main base 52, limiting longitudinal bar 53, secondary base 54, secondary base 55, third limiting component 6, upright 61, shelf crossbar 62, main rod seat 63, shelf longitudinal bar 64, secondary rod seat 65, shelf base 66, and secondary guide opening 67, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

[0100] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0101] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A composite multi-functional load bearing pallet, characterized by: The utility model provides a kind of tray, which comprises a tray body, a plurality of support legs, a plurality of support tubes, a plurality of support rods, a plurality of limiting mechanisms, and a plurality of triangular plates. The tray body comprises a plurality of surrounding plates, a plurality of top plates, and a plurality of bottom plates. The surrounding plates are sequentially connected and fixed to form a frame of the tray body. The top plates and the bottom plates are installed inside the frame from bottom to top. The top plates are provided with a plurality of support holes. The support legs are provided at the corners of the tray body. The support legs comprise a main guide opening and a support body which are integrally connected. The main guide opening is funnel-shaped.

2. The composite multi-functional load bearing pallet of claim 1, wherein: The support tubes are detachably inserted into the main guide openings.

3. The composite multi-functional load bearing pallet of claim 1, wherein: The support rods are detachably inserted into the support holes.

4. The composite multi-functional load bearing pallet of claim 1, wherein: The limiting mechanisms are used to limit the relative positions of two adjacent tray bodies.

5. The composite multi-functional load bearing pallet of claim 1, wherein: The top plates are arranged side by side inside the frame.

6. The composite multi-functional load bearing pallet of claim 1, wherein: The top plates and the bottom plates are C-shaped plates.

7. The composite multi-functional load bearing pallet of claim 1, wherein: A plurality of vertical cylinders are arranged between the top plates and the bottom plates. The vertical cylinders correspond to the support holes one by one and are in communication with the support holes. The vertical cylinders, the top plates, and the bottom plates form a truss structure. The top plates have the same specifications, and the positions of the support holes correspond to each other. The main guide opening is formed by four trapezoidal plates which are spliced and welded. The main guide opening is used to guide the insertion of the support tubes or the support legs. The upper end of the main guide opening is flush with the top plate of the tray body. The support body is a vertical rectangular tube. The triangular plates are fixed at the bottom corners of the tray body for the support body to pass through. When two tray bodies are expanded and connected continuously, the support legs and the triangular plates at the corresponding positions of the bottom surfaces of the two tray bodies are welded and connected. Universal wheels are installed at the bottom of the support legs. Cart rods are inserted into the upper ends of two adjacent support legs. Handrails are connected between the two cart rods. The limiting mechanisms comprise a first limiting component. The first limiting component comprises a gasket which is fixed at the lower end of the support body. The bottom of the support body is provided with an opening for clamping the cover plate. The gasket is fixed at the bottom of the cover plate. The gasket is used to fit into the main guide opening of the lower tray. The limiting mechanisms comprise a second limiting component. The second limiting component comprises a limiting horizontal rod, a main base, a limiting vertical rod, and a secondary base. The limiting horizontal rod is parallelly arranged at the bottom of the short side of the tray body. The support legs at the corners of the tray body are inserted and fixed into the main base on the limiting horizontal rod. The ends of the two limiting horizontal rods are connected by the limiting vertical rod. The limiting horizontal rod is fixed into the secondary base on the limiting vertical rod.

8. The composite multi-functional load bearing pallet of claim 1, wherein: The limiting mechanism comprises a third limiting component, the third limiting component comprises a vertical rod, a shelf horizontal rod and a shelf longitudinal rod, the bottom end of the vertical rod is inserted into the main guide opening, the shelf horizontal rod is arranged in parallel on the top of the short side of the tray body, and the top end of the vertical rod is inserted and fixed into the main rod seat on the shelf horizontal rod; the two ends of the two shelf horizontal rods are connected through the shelf longitudinal rod, the shelf longitudinal rod is provided with a secondary rod seat for inserting the main rod seat; the upper end of the secondary rod seat is inserted and fixed with a shelf base, and the upper end of the shelf base has a funnel-shaped secondary guide opening for inserting the supporting leg of the upper tray.

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