Multi-functional composite loading tray

Abstract

To provide a composite type multi-functional tray for loading in which an adjacent tray body and a loaded article include stopper structures respectively, which secures position fixing in storage and transfer, and which improves stability in loading / unloading of the tray body and cargo loading.SOLUTION: A composite type multi-functional tray for loading includes a tray body 1, a support leg 2, a storage mechanism 3 and a stopper mechanism. The tray body 1 includes the plurality of support legs 2. Between an upper end of the tray body 1 and the support leg 2, a storage mechanism 3 is installed for restricting a relative azimuth between a loaded article and the tray body. Between the support leg 2 and the tray body 1, the stopper mechanism is installed for restricting the relative azimuth of the adjacent tray body.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] FIELD OF THE INVENTION The present invention relates to the field of loading tray technology, and more particularly to a combined multi-function loading tray. [Background technology]

[0002] Trays are horizontal platform devices for loading, stacking, and transporting cargo and products as unit loads. Trays are a unitized logistics device created primarily to meet the needs of efficient logistics. They are the connecting point between various links in modern logistics systems. However, due to the lack of standardized specifications, trays cannot be distributed throughout the logistics chain and are limited to in-house use. Furthermore, traditional trays generally require stacking and unloading during storage. Trays generally use a direct contact stacking method. When trays and cargo are secured with stoppers, stacked trays can separate and shift during transportation.

[0003] In order to solve the deficiencies in the prior art, people have been searching for a long time and have proposed various solutions. For example, Patent Document 1 discloses a combination tray, which is composed of three parts: a tray plate, a connector, and a square pipe, and both sides of the square pipe are vertically connected to the upper and lower tray plates at spatial positions via the connector, and the upper and lower surfaces of the connector are provided with fasteners that are vertically distributed relative to each other, and the upper and lower surfaces of the square pipe are provided with locking grooves that engage with the connector, and the tray plate is provided with locking grooves that engage with the connector.

[0004] Although the above solution has to some extent solved the problem of poor adaptability for storage and transportation, unlike the specifications of conventional trays, this solution still has many shortcomings, such as the tendency for the trays to shift position during storage, stacking, and transportation. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Chinese patent document 201010175319.X Summary of the Invention [Problem to be solved by the invention]

[0006] The object of the present invention is to provide a composite multi-functional loading tray that solves the problems existing in the prior art, and has the advantages of good structural stability, wide adaptability, and excellent expansion continuity. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides the following solution: The present invention provides a composite multi-function loading tray, which comprises: a tray body including a shroud, a top plate, and a bottom plate, the shroud being connected and fixed sequentially at the top and bottom to form a frame of the tray body, and the bottom plate and the top plate being attached to the inside of the frame formed by the shroud from bottom to top, and the top plate having a plurality of support holes; a support leg, the support leg being installed at a corner of the tray body and including a primary guide opening and a support body integrally connected thereto, the opening of the primary guide opening facing upward and positioned at the corner of the tray body, the bottom of the primary guide opening communicating with the support body, the bottom of the support body being closed by a cover plate, the primary guide opening having a funnel shape; a storage mechanism, the storage mechanism being installed on the tray body to store cargo in a stopper, the storage mechanism including a support pipe detachably inserted into the primary guide opening portion and a support rod detachably inserted into the support hole; and a stopper mechanism for stopping the relative orientation of two adjacent tray bodies.

[0008] Preferably, multiple top plates are arranged side by side within the frame made up of the enclosure plate, each of the top plates has multiple support holes, the specifications of each top plate are the same, and the positions of the support holes correspond one-to-one.

[0009] Preferably, the top plate and bottom plate are both C-shaped plates, and a plurality of vertical drums are arranged at equal intervals between the top plate and bottom plate, and the vertical drums correspond one-to-one to the positions of the support holes and are connected to each other.

[0010] Preferably, the primary guide port is made by assembling and welding four trapezoidal plates, the primary guide port is used to guide the insertion of the support pipe or support leg, the upper port of the primary guide port is flush with the top plate of the tray body, and the support body is made of a square tube that is installed vertically.

[0011] Preferably, a triangular plate for passing the support is fixed to the corner of the bottom surface of the tray body, and when the expansion of the two tray bodies is continuous, the triangular plate is welded to the support legs corresponding to the bottom surfaces of the two tray bodies.

[0012] Preferably, a swivel wheel is attached to the bottom of the support leg, and a handrail is inserted into the upper ends of two adjacent support legs, with a handrail bar connecting the two handrails.

[0013] Preferably, the tray further includes a stopper mechanism, the stopper mechanism including a first stopper component, the first stopper component including a gasket fixed to the lower end of the support, the bottom of the support having a notch for engaging the cover plate, the gasket fixed to the bottom of the cover plate, and the gasket used to fit into the primary guide opening of the lower tray.

[0014] Preferably, the tray further includes a stopper mechanism, the stopper mechanism including a second stopper component, the second stopper component including a horizontal stopper bar, a primary base, a vertical stopper bar, and a secondary base, the horizontal stopper bar is installed parallel to the bottom of the short side of the tray body, the bottom of the support leg at the corner of the tray body is inserted and fixed to the primary base on the horizontal stopper bar, both ends of the two horizontal stopper bars are respectively connected by the vertical stopper bar, and the horizontal stopper bar is fixed within the secondary base on the vertical stopper bar.

[0015] Preferably, the tray further includes a stopper mechanism, the stopper mechanism including a third stopper component including a vertical bar, a shelf cross bar, and a shelf vertical bar, the bottom end of the vertical bar being inserted into the primary guide opening, the shelf cross bar being installed parallel to the top of the short side of the tray body, the top end of the vertical bar being inserted into and fixed to a primary stand on the shelf cross bar, both ends of the two shelf cross bars being connected respectively by the shelf vertical bar, a secondary stand for inserting the primary stand on the shelf vertical bar, an upper end of the secondary stand being inserted and fixed to a shelf base, the upper end of the shelf base being funnel-shaped and having a secondary guide opening for inserting the support legs of the upper tray. [Effects of the Invention]

[0016] The present invention has the following beneficial technical effects over the prior art.

[0017] The composite multi-functional loading tray of the present invention includes a tray body, support legs, a storage mechanism, and a stopper mechanism, the tray body has a plurality of support legs, a storage mechanism is installed between the upper end of the tray body and the support legs to restrict the relative orientation of the loaded object and the tray body, and a stopper mechanism is installed between the support legs and the tray body to restrict the relative orientation of adjacent tray bodies, the adjacent tray bodies and their loaded objects are each equipped with a corresponding stopper structure to ensure their position is fixed during storage and transportation, and improve the stability of stacking, loading and unloading of the tray bodies and loading of cargo.

[0018] In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. It is obvious that the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other accompanying drawings based on these accompanying drawings without exerting any creative efforts. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a structural schematic diagram of the present invention; [Figure 2] FIG. 2 is a structural schematic diagram of another aspect of the present invention. [Figure 3] FIG. 2 is a structural schematic diagram of the storage mechanism of the present invention. [Figure 4] FIG. 2 is another structural schematic diagram of the retraction mechanism of the present invention. [Figure 5] FIG. 2 is a structural schematic diagram of the first stopper component of the present invention. [Figure 6] FIG. 2 is a structural schematic diagram of a second stopper component of the present invention. [Figure 7] FIG. 10 is a structural schematic diagram of a third stopper component of the present invention. [Figure 8] 1 is a structural schematic diagram of the cart of the present invention; [Figure 9] FIG. 2 is a diagram showing the backing structure of the tray body of the present invention. [Figure 10] FIG. 10 is a diagram showing the welding application of the tray body of the present invention. [Figure 11] This is a diagram of the connection and force reception between the top and bottom plates. [Figure 12] FIG. 10 is a force-receiving node diagram of the top and bottom plates. [Figure 13] This is a diagram of the connection and force reception of the vertical body. [Figure 14] This is a force-receiving node diagram of a standing body. [Figure 15] FIG. 10 is a force-receiving node diagram of the support leg. [Figure 16] FIG. 1 is a plan view of a combined multi-function loading tray with a total force-receiving node. [Figure 17] FIG. 10 is a side view of a combined multi-function loading tray with a total force-receiving node; [Figure 18] FIG. 10 is a three-dimensional view of the total force-receiving node diagram of the composite multi-function loading tray. [Figure 19] FIG. 1 is a structural schematic diagram showing a tray body made of a single plate. [Figure 20] 10 is a schematic diagram of the tray protection feet being secured by the plunger when the tray edge jack is not occupied. [Figure 21] FIG. 1 is a schematic diagram of a type 1 tray protection foot. [Figure 22] FIG. 10 is a diagram showing a method for attaching tray protection feet when the jacks on the edge of the tray are not occupied and no plungers are required. [Figure 23] FIG. 10 is a schematic diagram of a Type 1 tray protection foot when the tray edge jack is unoccupied and no plunger is required. [Figure 24] 10 is a schematic diagram of the installation of tray protection feet when the jacks on the edges of the tray portion are occupied by plungers. FIG. [Figure 25] 1 is a schematic diagram of a type 1 tray protection foot when the jack on the edge of the tray portion is occupied by the plunger. [Figure 26] 1 is a schematic diagram of fixing the tray protection feet using four-legged posts. [Figure 27] FIG. 2 is a schematic diagram of fixing the tray protection legs using four leg posts. [Figure 28] 28 is a schematic diagram of the tray protection feet of type 2 in FIGS. 26 and 27. FIG. [Figure 29] FIG. 10 is a schematic diagram of fixing the polygonal tray protection feet using four-legged posts. [Figure 30] FIG. 30 is a schematic diagram of the type 3 tray protection foot in FIG. 29. [Figure 31] 10 is a schematic diagram of installing tray protection feet around the tray when the holes in the tray feet are not occupied and the posts on the feet are not required. FIG. [Figure 32] FIG. 32 is a schematic diagram of the type 4 tray protection foot in FIG. 31. [Figure 33] FIG. 13 is an exploded view of the tray body, the fence fixing legs, and the removable fence in the seventh embodiment. [Figure 34] FIG. 10 is a schematic diagram showing the tray body, fence fixing legs and removable fence assembled into a box-shaped tray in Example 7. [Figure 35] FIG. 10 is a schematic diagram of a mounting method for the fence fixing legs. [Figure 36] FIG. 13 is an exploded view of the tray body, the screen fixing legs, and the foldable screen in the eighth embodiment. [Figure 37] FIG. 10 is a schematic diagram showing the tray body, screen fixing legs and foldable screen assembled into a box-shaped tray in Example 8. [Figure 38] FIG. 10 is a schematic diagram of a mounting method for the screen fixing legs. DETAILED DESCRIPTION OF THE INVENTION

[0020] The following clearly and completely describes the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative efforts are within the scope of protection of the present invention.

[0021] The object of the present invention is to provide a composite multi-functional loading tray that solves the problems existing in the prior art, and has the advantages of good structural stability, wide adaptability, and excellent expansion continuity.

[0022] In order to make the above objects, features and advantages of the present invention more clearly comprehensible, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] As shown in Figures 1 to 38, the present invention provides a combined multi-functional loading tray. In Figures 1 and 2, the tray includes a tray body 1, which has a plurality of support legs 2. The support legs 2 maintain a gap between the lower end of the tray body 1 and the horizontal surface, facilitating transportation by forklift or cart. A storage mechanism 3 is installed between the upper end of the tray body 1 and the support legs 2, which limits the relative orientation of the load and the tray body 1. The storage mechanism 3 ensures that the load is positioned horizontally relative to the tray body 1, preventing it from slipping off during storage and transportation. A stopper mechanism is installed between the support legs 2 and the tray body 1 to limit the relative orientation of adjacent tray bodies 1. This stopper mechanism can be optionally installed according to actual needs, making it suitable for different environments.

[0024] Specifically, the support legs 2 are rectangular tubes installed vertically, typically made of square pipes, and fixed to the corners of the tray body 1. The lower ends of the support legs 2 are covered with cover plates. A funnel-shaped primary guide opening 21 is connected to the upper ends of the support legs 2, and the port of the primary guide opening 21 is flush with the upper end of the tray body 1. The primary guide opening 21 is used to assemble and weld multiple trapezoidal plates and is used to guide the mutual insertion of the support legs 2, thereby quickly positioning the tray bodies 1 when stacked. The primary guide opening 21 is mainly used in stopper mechanisms, allowing for quick insertion and fixation of each lever body.

[0025] 3 and 4, when an object is placed on the tray body 1, the storage mechanism 3 restricts its horizontal orientation. Specifically, the storage mechanism 3 includes support pipes 31 that are inserted and fixed to the support legs 2. The support pipes 31 are rectangular tubes that are pasted and pressed against the inside of the support legs 2. The upper end of the tray body 1 is provided with support holes 32 that are distributed in a matrix pattern, and cylindrical support rods 33 are inserted and fixed into the support holes 32 or connected by screws.

[0026] As shown in Figures 1 and 19, the tray body 1 may be assembled using multiple panels with the same specifications, or may be manufactured using a single plate. When multiple panels with the same specifications are assembled, the holes on the panels are aligned, making processing easier. During actual use, assembled panels or the entire panel may be selected as needed.

[0027] When placing regular-shaped loads such as boxes on the tray body 1, the support pipes 31 fixed to the corners of the tray body 1 can serve as relatively good stoppers. When placing multiple sets of irregular loads on the tray body 1, the support rods 33 are inserted and fixed into appropriate support holes 32, restricting the horizontal freedom of the loads. The support pipes 31 can be combined with other tray bodies 1 to stack them and achieve multi-tiered storage of loads.

[0028] Furthermore, unlike the stopper for the loaded items of the storage mechanism 3, the stopper mechanism in this application is realized by optionally installing the position of the tray body 1 and the tray body 1 according to actual needs, and performs the corresponding locking and fixing. The stopper mechanism includes a first stopper component 4 that restricts the relative direction of the tray bodies 1 that are arranged adjacent to each other vertically and stacked. Alternatively, a second stopper component 5 that restricts the relative orientation is installed between the tray bodies 1 that are arranged adjacent to each other horizontally. Alternatively, the tray bodies 1 are stacked vertically by a third stopper component 6 to form a frame structure.

[0029] As shown in FIGS. 2 and 5, the first stopper component 4 includes a gasket 41 fixed to the lower end of the support leg 2 of the tray body 1, and the gasket 41 is fixedly connected to the cover plate at the bottom of the support leg 2 by caulking or other methods. The lower end of the support leg 2 has a notch that engages with the cover plate. The gasket 41 fits into an opening at the upper end of the support leg 2 of another tray body 1 to prevent rattling. The support legs 2 of tray bodies 1 arranged adjacently one above the other correspond one to one vertically. The specifications of each tray body 1 are consistent, so that the support legs 2 can maintain the relative separation of the tray bodies 1 even after stacking.

[0030] As shown in Figures 1 and 2, the tray body 1 is generally made of stainless steel or aluminum. Specifically, it includes shrouds 11 distributed around the periphery, which are welded together with horizontal and vertical plates and have corresponding reinforcing plates attached. The upper end of the tray body 1 is closed by a plurality of adjacent top plates 12, which are tightly attached to each other and have both ends welded to the shroud 11. A bottom plate 13 is installed at the lower end of the tray body 1, corresponding one-to-one to the top plate 12, and serves as a bearing capacity. The top plates 12 and bottom plate 13 are C-shaped plates, and a plurality of vertical bodies are arranged at equal intervals between them.

[0031] As shown in Figure 11, the top plate 12 and the bottom plate 13 are C-hemmed and form a truss structure after welding. The direction of the arrow indicates the direction of the force. In Figure 12, dots represent the welding positions of the top plate 12 and the bottom plate 13. Each welding position is a node that receives the force and transmits the force to adjacent nodes via slab reinforcement, ultimately transmitting the received force to the plate surfaces on both sides of the tray body 1.

[0032] 13 and 14, there are also vertical barrels arranged at equal intervals between the top plate 12 and the bottom plate 13. The vertical barrels correspond one-to-one to the support holes 32 in the storage mechanism 3 and are used to insert and fix the support rods 33. After the vertical barrels are welded to the top plate 12 and the bottom plate 13, they form the truss structure shown in FIG. 13. The dots in FIG. 14 represent welding positions, and each welding position acts as a node that receives force, transmitting the force to adjacent nodes via slab reinforcement, and ultimately transmitting the received force to the plate surfaces on both sides of the tray body 1.

[0033] As shown in Figures 2 and 15, a triangular plate 14 through which the support leg 2 passes is fixed to the corner of the lower end of the tray body 1. The triangular plate 14 partially reinforces the tray body 1 and increases the number of welding points between the tray body 1 and the support leg 2. The thick-walled square pipe in the support leg 2, the funnel-shaped primary guide port 21, and the triangular plate 14 are welded together to form the support leg. In Figure 15, the dots represent nodes that receive the force of one circumference of the support leg; this structure bears the load hierarchically, making the support leg 2 more stable and able to bear heavy loads.

[0034] The above node force diagram constitutes the total force-bearing node diagram of the tray. As shown in Figures 16 to 18, the vertical body forms a truss structure after welding the top plate 12 and bottom plate 13. The top plate 12 and bottom plate 13 are C-hemmed and form a truss structure after welding. The thick-walled square pipe in the support leg 2, the funnel-shaped primary guide port 21 and the triangular plate 14 form a truss structure that bears force in a closed loop. The force acting on the tray surface is evenly distributed to the four support legs 2 of the tray.

[0035] As can be seen from Figure 9, a fixed backing 15 and a protective backing 16 are laid in this order on the upper end of the tray body 1. The fixed backing 15 may be made of a hard board such as a wooden board, a wear-resistant plastic board, or a PP board. The number of layers of the fixed backing 15 may be increased or decreased as needed. The protective backing 16 is made of a soft board such as pearl cotton or cardboard. Notches are provided at the corners of the fixed backing 15 and the protective backing 16 relative to the support legs 2, which do not affect the insertion and fixation of the storage mechanism 3 and stopper mechanism of the tray body 1.

[0036] Example 2 As shown in FIG. 6, the structure, principle and implementation steps of this embodiment are similar to those of the first embodiment, except that this embodiment employs a second stopper component 5 to realize relative stop of the tray bodies 1 arranged adjacently on the left and right, and the second stopper component 5 ensures that the upper ends of the tray bodies 1 are flush with each other, making it suitable for placing larger volumes of loads.

[0037] The second stopper component 5 includes a horizontally disposed stopper bar 51, which is generally relatively parallel to the short side of the tray body 1. The stopper bar 51 has a primary base 52 facing the support leg 2. The upper end of the primary base 52 is inserted and fixed to the support leg 2. The stopper bar 51 is located below the tray body 1. The primary base 52 is generally directly attached to the ground. The support leg 2 is locked and fixed to the primary base 52 of the stopper bar 51 with a screw or pin. A corresponding pin hole is opened on the side of the lower end of the support leg 2, and the primary base 52 has a socket into which the screw or pin is attached.

[0038] Between the ends of the horizontal stopper bars 51, vertical stopper bars 53 are connected, facing each other and arranged perpendicularly. The vertical stopper bars 53 have secondary bases 54, relatively parallel to the long sides of the tray body 1, into which the ends of the horizontal stopper bars 51 are inserted. The secondary bases 54 are inserted and fixed to the ends of other horizontal stopper bars 51. The horizontal stopper bars 51 are locked and fixed to the secondary bases 54 of the vertical stopper bars 53 with screws or pins. The horizontal stopper bars 51 are connected one by one by the vertical stopper bars 53 and their secondary bases 54, connecting the tray body 1 in a long shape and suitable for storing large-volume loads.

[0039] Example 3 As shown in FIG. 7, the structure, principle and implementation steps of this embodiment are similar to those of the first embodiment, except that this embodiment employs a third stopper component 6 to combine the tray body 1 with a frame structure and engage with the storage mechanism 3 to realize three-dimensional storage of multiple loads.

[0040] The third stopper component 6 includes a vertical bar 61 inserted perpendicularly into the support leg 2. The vertical bar 61 may directly replace the support pipe 31 in the storage mechanism 3. A shelf cross bar 62 is connected between the top ends of the vertical bars 61. The shelf cross bar 62 has a primary stand 63 into which the top end of the vertical bar 61 is inserted and fixed, and a shelf vertical bar 64 is connected between the ends of the shelf cross bar 62. The shelf vertical bar 64 has a secondary stand 65 into which the primary stand 63 is inserted and fixed. The shelf cross bar 62 and the shelf vertical bar 64 form a frame structure, and together with the vertical bar 61 and the tray body 1 located below, they form a frame structure. A shelf base 66 is additionally inserted and fixed to the upper end of the secondary stand 65. The upper end of the shelf base 66 is funnel-shaped and has a secondary guide opening 67 into which the support leg 2 of another tray body 1 is inserted. A plurality of frame structures are combined with shelf bases 66 to realize three-dimensional storage of cargo.

[0041] Example 4 As shown in Figure 8, the structure, principle, and implementation steps of this embodiment are similar to those of the first embodiment, except that in this embodiment, gimbal rollers 22 are fixed to the lower ends of the support legs 2 of the tray body 1, and push rods 23 are inserted and fixed to the upper ends of the support legs 2. The push rods 23 may be replaced with support pipes 31. A handrail bar 24 is connected between the upper ends of the push rods 23 to form a rectangular frame. The handrail bar 24 has a handrail base 25 to which the push rod 23 is inserted and fixed. The operator can directly push the tray body 1, improving the flexibility of cargo transportation.

[0042] Example 5 As shown in Figure 10, the structure, principle and implementation steps of this embodiment are similar to those of Embodiment 1, with the difference being that the primary guide opening 21 of the tray body 1 and the triangular plate 14 connected to the support leg 2 of the tray body 1 in this embodiment are welded and fixed to the primary guide opening 21 and triangular plate 14 of another tray body 1, respectively, and multiple tray bodies 1 can be combined and welded from different directions to carry larger loads and larger-sized items.

[0043] The support legs 2, the triangular plate 14, and the primary guide opening 21 are all welded and fixed with 4 mm thick plates. The loading capacity of the tray body 1 is not reduced by the increase in its size, and the increase in the loading area of the tray body 1 improves its adaptability.

[0044] To summarize, the principle of this embodiment is that after the load is placed on the top end of the tray body 1, the storage mechanism 3 uses an intubation method to realize a horizontal multi-point stopper, and when the stopper component is arranged vertically or horizontally on the tray body 1, it acts as a locking stopper, thereby increasing the tray loading capacity or reducing the space required for its storage, and together ensuring the stability of the tray body 1 and its load during storage and transportation.

[0045] Example 6 As shown in FIGS. 20 to 32, tray protection feet are further provided on the outer periphery of the tray body in this embodiment, and there are several types of tray protection feet.

[0046] Among them, those shown in Figures 20 to 25 are types of tray protection feet, and when the jacks on the tray edges are not occupied, the tray protection feet can be fixed using the plunger shown in Figure 20. When the jacks on the tray edges are not occupied and no plunger is required, the tray protection feet are attached using the method shown in Figure 22, and when the jacks on the tray edges are occupied by the plunger, the tray protection feet are attached using the method shown in Figure 24.

[0047] Figures 26 to 28 show type 2 tray protection feet, which can be fixed using four-legged posts. Figures 29 to 30 show type 3 tray protection feet, which use four-legged posts to fix polygonal tray protection feet. Figures 31 to 32 show type 4 tray protection feet, which can be attached around the tray using the method shown in Figures 31 to 32 when the holes for the four tray legs are not occupied and four-legged posts are not required.

[0048] Example 7 As shown in Figures 33 to 35, a tray fence is further installed around the outer periphery of the tray body in this embodiment. Taking advantage of the special loading structure of the tray's four support legs, the fence fixing legs and removable fence can be used to assemble into a box-shaped tray. By relying on the "special loading structure of the tray's four support legs," square pipes can be inserted in place of the fence fixing legs to serve as carriers connecting the removable fence, thereby realizing the tray stacking scheme. As shown in Figure 35, the fence fixing legs secure the removable fence with screws or pins, making the installation and removal process simple and quick.

[0049] Example 8 As shown in Figures 36 to 38, in this embodiment, a tray fence is further installed around the outer periphery of the tray body. By utilizing the special loading structure of the tray's four support legs, the screen fixing legs and the foldable screen can be used to assemble a folding mesh pallet. By relying on the "special loading structure of the tray's four support legs," square pipes can be inserted instead of the screen fixing legs to serve as carriers for connecting the foldable screen, thereby realizing the tray stacking scheme. As shown in Figure 38, the screen fixing legs are fixed to the tray legs with screws or pins, making the installation and removal process simple and quick, and the storage area required after removing the foldable fence is small.

[0050] The specific embodiments described herein are merely illustrative of the spirit of the present invention, and those skilled in the art of the present invention may make various modifications or additions to the described specific embodiments, or substitute them in a similar manner, without departing from the spirit of the present invention or beyond the scope defined in the appended claims.

[0051] In this specification, terms such as tray body 1, shroud 11, top plate 12, bottom plate 13, triangular plate 14, fixed backing 15, protective backing 16, support legs 2, primary guide opening 21, gimbal roller 22, push rod 23, handrail bar 24, handrail base 25, storage mechanism 3, support pipe 31, support hole 32, support rod 33, first stopper component 4, gasket 41, second stopper component 5, stopper horizontal bar 51, primary base 52, stopper vertical bar 53, secondary base 54, third stopper component 6, vertical bar 61, shelf horizontal bar 62, primary stand 63, shelf vertical bar 64, secondary stand 65, shelf base 66, and secondary guide opening 67 are frequently used, but this does not exclude the possibility of using other terms. The use of these terms is merely to more easily describe and interpret the essence of the present invention, and any interpretation of them as any additional limitations would be contrary to the spirit of the present invention.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments are to be considered illustrative and not limiting. The scope of the present invention is limited not by the above description but by the appended claims, and all changes that come within the meaning and range of equivalency of the claims are intended to be embraced within the present invention. Any accompanying drawing reference signs in the claims should not be construed as limiting the associated claims.

[0053] In the present invention, the principles and embodiments of the present invention are described using specific examples. The explanation of the above examples is only intended to help understand the method of the present invention and its core idea, and those skilled in the art can modify the specific embodiments and application scope based on the idea of the present invention. In summary, the contents of this specification should not be understood as limitations on the present invention. [Explanation of symbols]

[0054] 1, tray body, 11, shroud, 12, top plate, 13, bottom plate, 14, triangular plate, 15, fixed backing, 16, protective backing, 2, support leg, 21, primary guide port, 22, gimbal roller, 23, handrail, 24, handrail bar, 25, handrail base, 3, storage mechanism, 31, support pipe, 32, support hole, 33, support rod, 4, first stopper component, 41, gasket, 5, second stopper component, 51, stopper horizontal bar, 52, primary base, 53, stopper vertical bar, 54, secondary base, 6, third stopper component, 61, vertical bar, 62, shelf horizontal bar, 63, primary stand, 64, shelf vertical bar, 65, secondary stand, 66, shelf base, 67, secondary guide port.

Claims

1. a tray body including a shroud, a top plate, and a bottom plate, the shroud being connected and fixed sequentially at the top and bottom, forming a frame for the tray body, and a bottom plate and a top plate being attached to the inside of the frame formed by the shroud, from bottom to top, respectively, and the top plate having a plurality of support holes; The tray includes a primary guide opening and a support body, the primary guide opening being disposed at a corner of the tray body and integrally connected thereto, the opening of the primary guide opening facing upward and positioned at the corner of the tray body, the bottom of the primary guide opening communicating with the support body, the bottom of the support body being closed by a cover plate, and the primary guide opening having a funnel-shaped support leg; a storage mechanism that is installed on the tray body and is used to store cargo in a stopper, the storage mechanism including a support pipe that is detachably inserted into the primary guide opening, and a support rod that is detachably inserted into the support hole; a stopper mechanism for stopping the relative orientation of two adjacent tray bodies, A plurality of top plates are arranged in a frame formed by the shroud, and each of the top plates has a plurality of support holes formed therein; A composite multi-functional loading tray characterized in that a plurality of standing drums are arranged between the top plate and the bottom plate, the standing drums correspond one-to-one to the positions of the support holes and are connected to each other, and the standing drums form a truss structure after being welded to the top plate and the bottom plate.

2. A composite multi-function loading tray as described in Claim 1, characterized in that the specifications of each of the top plates are the same.

3. 2. The composite multi-functional stacking tray according to claim 1, wherein the top plate and the bottom plate are both C-shaped plates.

4. A composite multi-function loading tray as described in claim 1, characterized in that a plurality of standing bodies are arranged at equal intervals between the top plate and the bottom plate.

5. 2. The composite multi-functional loading tray of claim 1, wherein the primary guide opening is made by assembling and welding four trapezoidal plates, the primary guide opening is used to guide the insertion of a support pipe or a support leg, the upper port of the primary guide opening is flush with the top plate of the tray body, and the support body is made of a vertically installed square tube.

6. The composite multi-functional loading tray of claim 1, characterized in that a triangular plate for passing the support is fixed to the corner portion of the bottom surface of the tray body, and when the two tray bodies are continuously expanded, the support legs and the triangular plate corresponding to the bottom surfaces of the two tray bodies are welded and connected.

7. 2. The composite multi-functional loading tray according to claim 1, wherein a swivel wheel is attached to the bottom of the support leg, a push rod is inserted into the upper ends of two adjacent support legs, and the two push rods are connected by a handrail bar.

8. 2. The composite multi-function loading tray of claim 1, wherein the stopper mechanism includes a first stopper component, the first stopper component includes a gasket fixed to the lower end of the support, the bottom of the support has a notch for engaging the cover plate, the gasket is fixed to the bottom of the cover plate, and the gasket is used to fit into the primary guide opening of the lower tray.

9. 2. The composite multi-function loading tray of claim 1, wherein the stopper mechanism includes a second stopper component, the second stopper component including a horizontal stopper bar, a primary base, a vertical stopper bar, and a secondary base, the horizontal stopper bar is installed parallel to the bottom of the short side of the tray body, the bottom of the support leg at the corner of the tray body is inserted and fixed to the primary base on the horizontal stopper bar, both ends of the two horizontal stopper bars are respectively connected by the vertical stopper bar, and the horizontal stopper bar is fixed within the secondary base on the vertical stopper bar.

10. 2. The composite multi-functional loading tray of claim 1, wherein the stopper mechanism includes a third stopper component, the third stopper component including a vertical bar, a shelf cross bar, and a shelf vertical bar, the bottom end of the vertical bar being inserted into a primary guide opening, the shelf cross bar being installed parallel to the top of a short side of the tray body, the top end of the vertical bar being inserted into and fixed to a primary stand on the shelf cross bar, both ends of the two shelf cross bars being connected respectively by the shelf vertical bar, a secondary stand being installed on the shelf vertical bar for inserting the primary stand, an upper end of the secondary stand being inserted and fixed to a shelf base, and an upper end of the shelf base being funnel-shaped and having a secondary guide opening for inserting a support leg of an upper tray.

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