CN113955275A

CN113955275A - Corner piece and combined tray

Info

Publication number: CN113955275A
Application number: CN202111366751.1A
Authority: CN
Inventors: 张洪
Original assignee: Sichuan Li Chuan Plastic Products Co ltd
Current assignee: Sichuan Li Chuan Plastic Products Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-01-21
Anticipated expiration: 2041-11-18
Also published as: CN113955275B

Abstract

The invention relates to a corner piece and a combined tray, which comprise a corner body, wherein the corner body is provided with a first contact surface, a second contact surface, a first outer side surface corresponding to the first contact surface and a second outer side surface corresponding to the second contact surface, the first contact surface and the second contact surface are adjacent and mutually vertical, a first plug connector and a second plug connector which protrude outwards are respectively arranged in the first contact surface and the second contact surface, a first plug cavity matched with the first plug connector is arranged in the first outer side surface, and a second plug cavity matched with the second plug connector is arranged in the second outer side surface; this corner spare, design benefit not only can connect the strake, also can assemble each other between corner spare and the corner spare moreover, has both been favorable to two-way expansion tray size to satisfy the demand of assembling different size combination trays, but also can be with the low cost obtain tray size as much as possible, thereby show reduce cost.

Description

Corner piece and combined tray

Technical Field

The invention relates to the technical field of trays, in particular to a corner piece and a combined tray.

Background

The tray is a logistics unit matched with logistics equipment such as a forklift, a goods shelf and the like for use, can be used for storing, loading and carrying goods, and is one of the necessary logistics equipment in modern logistics storage. The plastic tray is a common tray at present, has more advantages compared with the traditional wood tray and metal tray, and has wide application in the fields of chemical industry, light textile industry, manufacturing industry and the like.

At present, plastic trays are generally formed by injection molding, so that the sizes of the existing plastic trays are all related to the sizes of molds, that is, molds of one size can only produce plastic trays of one size, on one hand, the sizes of the existing plastic trays are relatively fixed, and the requirements of customers on plastic trays of special sizes are not met, for example, the sizes of the existing plastic trays are generally 1m × 1.2m, and the requirements of customers on plastic trays of 1.2m × 1.2m are not met; on the other hand, the cost of the plastic tray is greatly increased, because the plastic tray of each size needs a mould with a corresponding size, and the cost of the mould is very high, when customers need plastic trays of various sizes or plastic trays of special sizes, the moulds with corresponding sizes need to be separately developed, so that the cost is greatly increased; to solve the problem, the side of the plastic tray may be provided with side strips (or called extension strips) to expand the size of the tray, so as to meet the requirements of customers, for example, a double-sided combined plastic tray with anti-collision corners disclosed in chinese patent CN 210213144U, by respectively providing side strips on four sides of a main board (i.e. tray, or called tray body), not only the purpose of anti-collision can be achieved, but also the purpose of expanding the size of the main board can be achieved, so as to form a combined tray (referred to as combined tray or assembled tray for short), and after respectively providing side strips on four sides of the main board, a gap can be formed between two adjacent side strips, which needs to be completed by using corner pieces, however, each side of the main board of the combined tray with this structure can only be provided with one side strip, when trays with different sizes are needed, side strips with different widths need to be assembled, this means that the edge strips with different sizes need to be manufactured, and a large number of corresponding dies need to be developed, which causes the problem of greatly increased cost, and the problem cannot be fundamentally solved; in the patent of the applicant's online application, a technical scheme is provided, in which a plurality of edge strips can be assembled on one side of a main board to increase the size of a combined tray, but the technical scheme can only expand the size of the side by increasing the number of the edge strips on the main board, and only one edge strip can be installed on the other side of the main board, so that the direction-changing size cannot be effectively expanded, that is, the sizes of the main board in two directions cannot be expanded according to actual requirements, and the problem cannot be effectively solved; therefore, it is necessary for a tray manufacturer to expand the dimensions of the tray in two directions (length direction and width direction) at low cost so as to manufacture trays with various dimensions (i.e. length and width, and height is usually fixed) at low cost, so as to meet the needs of different customers and different occasions.

Disclosure of Invention

The invention provides a corner piece beneficial to two-way expansion of the size of a tray, aiming at solving the problems that the existing tray technology can only obtain trays with different sizes by changing the width of edge strips or only increasing the number of edge strips on one side, the development cost is high, the size of the obtained tray is small, and the requirements of different customers and different occasions are not met, the corner piece not only can be connected with the edge strips, but also can be mutually connected and combined to meet the completion requirements of gaps with different shapes and sizes, not only is the combined tray with different sizes assembled, but also the cost can be obviously reduced, and the main conception is as follows:

a corner piece comprising a corner body, the sides of the corner body being configured with a first contact surface, a second contact surface, a first outer side corresponding to the first contact surface, and a second outer side corresponding to the second contact surface, wherein,

the first contact surface and the second contact surface are adjacent and vertical to each other,

the first contact surface and the second contact surface are respectively provided with a first connecting part and a second connecting part,

the first outer side surface is internally provided with a first bearing part which is matched with the first connecting part, and/or the second outer side surface is internally provided with a second bearing part which is matched with the second connecting part. In the scheme, the first connecting part and the second connecting part are respectively constructed in the first contact surface and the second contact surface, and the first bearing part and the second bearing part are respectively constructed in the first outer side surface and the second outer side surface, so that when the assembly is carried out, the first connecting part and the second connecting part can be connected with the adjacent edgings, the connection problem of the corner piece and the adjacent edgings is solved, the first bearing part or the second bearing part of the adjacent corner piece can be connected, the connection between the corner piece and the corner piece is realized, the assembly problem between the corner piece and the corner piece is solved, the corner piece assemblies with different shapes and sizes can be obtained through the splicing combination of at least two corner pieces, the compensation requirements of the combined tray for opening the combined tray and gaps with different sizes can be met, the problem of the size of the bidirectional expansion tray can be solved, and in the concrete implementation, a small amount of main boards, edge strips and the corner pieces need to be developed, combined trays of various sizes can be combined, and the cost can be remarkably reduced under the condition that the combined trays of various sizes are ensured, so that the problems in the prior art are effectively solved.

In order to solve the problem of realizing detachable installation by using a fastener, further, the first connecting part comprises a first plug-in connector which is constructed on the first contact surface and protrudes outwards, the first plug-in connector is constructed with a lock hole, the first bearing part comprises a first plug-in cavity which is adapted to the first plug-in connector and constructed on the first outer side surface, a first through hole and a second through hole which are communicated with the first plug-in cavity are respectively constructed above and below the first plug-in cavity, and the first through hole corresponds to the second through hole;

and/or the second connecting part comprises a second plug connector which is constructed on the second contact surface and protrudes outwards, the second plug connector is constructed with a lock hole, the second bearing part comprises a second plug connector which is matched with the second plug connector and is constructed in a second plug cavity on the outer side surface of the second, a first through hole and a second through hole which are communicated with the second plug cavity are respectively constructed above and below the second plug cavity, and the first through hole corresponds to the second through hole. During assembly, the first plug-in connector can be inserted into the corresponding first plug-in cavity, so that the lock hole respectively corresponds to the first through hole and the second through hole, the fastener can be inserted, the purpose of transversely locking the first plug-in connector is achieved, the anti-falling problem of the first plug-in connector can be solved, and the detachable installation problem of the corner piece can be solved; similarly, the second plug-in connector can be inserted into the corresponding second plug-in cavity, so that the lock hole respectively corresponds to the first through hole and the second through hole, the fastener can be inserted, the purpose of transversely locking the second plug-in connector is achieved, the anti-falling problem of the second plug-in connector can be solved, and the detachable installation problem of the corner piece can be solved;

preferably, the lock hole, the first through hole and the second through hole are all round holes, or the lock hole, the first through hole and the second through hole are all square holes. The round hole can the fastener of circular structure of adaptation, and the fastener of square structure of square hole can the adaptation solves with square structure fastener assorted problem.

In order to simplify the structure, preferably, the first plug connector is a sheet structure, the first plug cavity is a cuboid structure,

and/or the second plug connector is of a sheet structure, and the second plug cavity is of a cuboid structure. Not only is convenient for molding, but also is convenient for inserting into the corresponding inserting cavity.

In order to solve the problem of improving the universality, preferably, the number of the first plugging cavities is the same as that of the first plugging connectors, and each first plugging cavity is respectively configured at the position corresponding to each first plugging connector,

the number of the second plugging cavities is the same as that of the second plugging connectors, and the second plugging cavities are respectively constructed at positions corresponding to the second plugging connectors. The corner pieces and the adjacent corner pieces are more convenient to be assembled into a whole.

In order to make the connection of the corner fitting more secure, preferably, two sets of first plug connectors are respectively configured at the upper part and the lower part of the first contact surface, each set of first plug connectors at least comprises one first plug connector, and the first plug connectors in the same set are respectively configured at the same height; and/or two groups of second plug connectors are respectively constructed at the upper part and the lower part of the second contact surface, each group of second plug connectors at least comprises one second plug connector, and the second plug connectors in the same group are respectively constructed at the same height. Thereby facilitating more secure mounting of the corner fitting.

In order to solve the problem that notches with various sizes can be completed by utilizing at least two corner pieces, the first outer side surface is parallel to the first contact surface, the second outer side surface is parallel to the second contact surface,

the distance between the first outer side face and the first contact face is integral multiple of the distance between the second outer side face and the second contact face, or the distance between the second outer side face and the second contact face is integral multiple of the distance between the first outer side face and the first contact face. In the scheme, the length and the width of the corner pieces are equal or have a multiple relation, more regular corner piece assemblies can be assembled through at least two corner pieces, gaps with different sizes can be effectively supplemented, and combined trays with different sizes can be supplemented in a mode of increasing/reducing the corner pieces, so that combined trays with different sizes can be obtained.

Preferably, the distance between the first outer side face and the first contact face is 50mm, 100mm or 200 mm;

and/or the distance between the second outer side surface and the second contact surface is 50mm, 100mm or 200 mm.

In order to improve the bearing capacity of the corner piece, a channel for installing a reinforcing component is further formed in the corner body, and the channel at least penetrates through the first contact surface or the second contact surface. So that, during assembly, a reinforcing element is inserted into the channel in order to increase the load-bearing capacity of the corner fitting.

In order to solve the problem of obtaining trays with different sizes as much as possible at low cost, a combined tray is provided, which comprises a main board for bearing, a first edge strip assembly is spliced on a first side of the main board, a second edge strip assembly is spliced on a second side of the main board, the first side and the second side are adjacent and mutually perpendicular,

the first edge strip assembly comprises an edge strip or at least two edge strips spliced together, the second edge strip assembly comprises at least two edge strips spliced together,

the corner assembly is arranged at a corner formed by the first side and the second side and is formed by splicing at least two corner pieces, and the corner pieces adjacent to the edge strips are respectively connected to the corresponding edge strips. In the scheme, the combined tray is formed by splicing a main board, a first edge strip assembly, a second edge strip assembly and a corner assembly, wherein the first edge strip assembly is arranged on the first side of the main board and is formed by splicing one or at least two edge strips; the second strake subassembly sets up in the second side of mainboard, and form by two piece at least strakes concatenation, can be through the width of reasonable selection strake and the figure of strake, can effectively change the length of first side, and obtain the required length of customer, solve the problem that the first side length of tray can change, and through first strake subassembly, the cooperation of second strake subassembly and mainboard, the combination tray of different length and width can be gone out with the combination of low cost, solve the problem of low-cost acquisition as far as not unidimensional tray, and through setting up the corner subassembly, and the corner subassembly is by at least two the corner piece concatenation forms, can mend the various shapes that the combination tray assembly in-process formed, the breach of size, solve the completion problem of corner under various sizes, thereby can obtain regular combination tray.

For the concatenation problem between concatenation, strake and the mainboard between solving strake and the strake, it is further, the first side and the second side of mainboard are constructed a plurality of assembly parts respectively, one side of strake be constructed a plurality ofly with the assembly head of assembly part adaptation, and the opposite side of strake be constructed a plurality ofly with the assembly part of assembly head looks adaptation, and each assembly part and each assembly head one-to-one on the strake, the strake is connected in mainboard or adjacent strake through the cooperation of assembly head with assembly part. So as to realize the concatenation between strake and the strake, the concatenation function between strake and the mainboard to can splice out different sizes.

In order to solve the connection problem between the corner piece and the adjacent edge strip, further, the end part of the edge strip is configured with a matching part matched with the first connecting part and/or the second connecting part, and the structure of the matching part is the same as that of the first bearing part and/or the second bearing part. So that the corner piece is connected with the adjacent edge strips by using the fasteners, and the whole corner component can be fixedly connected with the first edge strip component and the second edge strip component on two sides, so that the structure of the whole combined tray is firmer.

Preferably, the main board adopts a single-sided tray, a III-shaped tray, a Tian-shaped tray or a double-sided tray.

Compared with the prior art, the corner piece and the combined tray provided by the invention have the advantages that the structure is simpler and more compact, the design is ingenious, the edge strips can be connected, the corner piece and the corner piece can be mutually assembled, corner piece assemblies in different shapes and sizes can be formed according to actual requirements, the corner piece assemblies can be used for combining the tray, the complementing requirements of notches in different shapes and sizes can be met, the tray size can be expanded in two directions, the requirements for assembling the combined trays in different sizes can be met, and the tray sizes as many as possible can be obtained at low cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a first corner fitting provided in embodiment 1 of the present invention, wherein the size of a corner body is 100mm × 50mm × 150 mm.

Fig. 2 is a second schematic structural view of a first corner fitting according to embodiment 1 of the present invention.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a cross-sectional view taken at a-a in fig. 3.

Figure 5 is a partial cross-sectional view of two corner pieces joined together by a fastener.

Fig. 6 is a partial schematic view of a combined tray assembled by using the corner fitting provided in fig. 1, wherein two edge strips are installed on one side of the combined tray, one edge strip is installed on the other side of the combined tray, and a gap at a corner is completed by two fasteners.

Fig. 7 is a schematic structural diagram of a second corner fitting provided in embodiment 1 of the present invention, wherein the dimensions of the corner body are 100mm × 100mm × 150 mm.

Fig. 8 is a second schematic structural view of a second corner fitting according to embodiment 1 of the present invention.

Fig. 9 is a partial schematic view of the assembled combination tray after notches are formed at the corners of the main plate.

Fig. 10 is a partial schematic view of the corner fitting provided in fig. 1 taken together with the corner fitting provided in fig. 8 to complete the gap in fig. 9.

Fig. 11 is a schematic structural diagram of a corner fitting provided in embodiment 1 of the present invention, wherein the size of the corner body is 200mm × 200mm × 150 mm. A

Fig. 12 is a top view of fig. 11.

Fig. 13 is a top view of a combined tray provided in embodiment 3 of the present invention.

Fig. 14 is a schematic three-dimensional structure diagram of a combined tray provided in embodiment 3 of the present invention.

Fig. 15 is a schematic three-dimensional structure diagram of a combined tray provided in embodiment 3 of the present invention.

Description of the drawings

Corner body 100, first contact surface 101, second contact surface 102, first bearing surface 103, second bearing surface 104, first outer side surface 105, second outer side surface 106, channel 107, first fitting hole 108, second fitting hole 109

A first plug 201, a second plug 202, a lock hole 203, a process groove 204, a drain hole 205, a first plug cavity 206, a second plug cavity 207, a first through hole 208, a second through hole 209, and a step 210

Mainboard 300, first side 301, second side 302

Edge strip 400, first edge strip assembly 401, second edge strip assembly 402, socket cavity 403, mounting portion 404, mounting head 405 fastener 500

Corner piece 600 and corner assembly 601

A notch 700.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present embodiment provides a corner piece, which includes a corner body 100, where the corner body 100 is a block-shaped structure, and the corner body 100 is preferably made of plastic; to facilitate injection molding of the corner body 100, the corner body 100 is further configured with a plurality of process grooves 204, as shown in fig. 1-6;

for convenience of description, the corner body 100 in the present embodiment is configured with a first contact surface 101, a second contact surface 102, a first outer side surface 105 corresponding to the first contact surface 101, and a second outer side surface 106 corresponding to the second contact surface 102, wherein,

the first contact surface 101 and the second contact surface 102 are adjacent to each other and perpendicular to each other, as shown in fig. 1 and fig. 2, that is, the first contact surface 101 and the second contact surface 102 are two adjacent side surfaces of the corner body 100, and an edge between the first contact surface 101 and the second contact surface 102 may be configured with a chamfer or a fillet, which does not affect normal use; as shown in fig. 1 to 6, the first contact surface 101 and the second contact surface 102 are respectively provided with a first connection portion and a second connection portion;

accordingly, as shown in fig. 1 to 6, a first receiving portion adapted to the first connecting portion is configured in the first outer side surface 105, and the first connecting portion and the first receiving portion can be detachably connected by an existing fastener 500, and/or a second receiving portion adapted to the second connecting portion is configured in the second outer side surface 106, and the second connecting portion and the second receiving portion can also be detachably connected by an existing fastener 500, so that the corner piece 600 can not only be connected with the edge strip 400, but also be spliced with each other to be adapted to notches 700 with different sizes.

That is, by respectively forming the first connecting portion and the second connecting portion in the first contact surface 101 and the second contact surface 102 and the first receiving portion and the second receiving portion in the first outer side surface 105 and the second outer side surface 106, when assembling, the first connecting portion and the second connecting portion can not only connect the adjacent edge strips 400, so that the corner fitting 600 can be connected with the adjacent edge strips 400 as a whole, but also can be connected with the first receiving portion or the second receiving portion of the adjacent corner fitting 600, that is, by the cooperation of the first connecting portion and the first receiving portion or the cooperation of the second connecting portion and the second receiving portion, so that the corner fitting 600 and the corner fitting 600 can be connected with each other, and by the splicing combination of at least two corner fittings 600, corner fitting 600 of different shapes and different sizes can be obtained, as shown in fig. 6 and fig. 10, when actually assembling, the required corner piece 600 assembly can be assembled according to actual needs to fill the gaps 700 at the corners of the combined tray, so that the filling requirements of the gaps 700 with different shapes and sizes can be met, in such a way, only one main board 300 with standard size, a plurality of edge strips 400 and a plurality of corner pieces 600 with different sizes need to be manufactured, the edge strips 400 are arranged on the side surfaces of the main board 300 during assembly, and one, two or more edge strips 400 can be arranged on the same side of the edge strips 400, as shown in fig. 6 and 10, so that the length and the width of the main board 300 can be increased; at this moment, can form rectangle breach 700 in mainboard 300's corner, only need connect into the corner piece 600 assembly of the shown rectangle breach 700 of adaptation with a plurality of corner pieces 600 to and pack rectangle breach 700 to insert corresponding strake 400 respectively with the first connecting portion and the second connecting portion of edge can, unusual convenience adopts such compound mode, not only can satisfy the customer to the demand of not unidimensional combination tray, but also can greatly reduced mould cost.

The first connection part and the second connection part have various embodiments, for example, they may be a snap or a hook, and preferably, in this embodiment, the first connection part includes a first plug 201 configured on the first contact surface 101, the first receiving part includes a first plug cavity 206 configured on the first outer side surface 105 and adapted to the first plug 201, correspondingly, the second connection part includes a second plug 202 configured on the second contact surface 102, and the second receiving part includes a second plug cavity 207 configured on the second outer side surface 106 and adapted to the second plug 202; that is, in the corner piece 600, at least one of the first receiving portion and the second receiving portion is configured, for example, as shown in fig. 1 to 6, the first insertion cavity 206 adapted to the first insertion connector 201 is configured in the first outer side 105 of the corner piece 600, and as shown in fig. 7 to 12, the first insertion cavity 206 adapted to the first insertion connector 201 and the second insertion cavity 207 adapted to the second insertion connector 202 are respectively configured in the first outer side 105 and the second outer side 106 of the corner piece 600.

In order to realize the detachable connection of the plug and the plugging chamber, in one embodiment, the first plug 201 is configured with a locking hole 203, as shown in fig. 1-6, a first through hole 208 and a second through hole 209 which are communicated with the first plugging chamber 206 are respectively configured above and below the first plugging chamber 206, and the first through hole 208 corresponds to the second through hole 209; when the assembly is carried out, the first plug connector 201 can be inserted into the corresponding first plug cavity 206, so that the lock hole 203 corresponds to the first through hole 208 and the second through hole 209 respectively, the fastener 500 can be inserted, the purpose of transversely locking the first plug connector 201 is achieved, the anti-falling problem of the first plug connector 201 can be solved, and the detachable installation problem of the corner piece 600 can be solved; correspondingly, the second plug 202 is also configured with a lock hole 203, a first through hole 208 and a second through hole 209 communicated with the second plug cavity 207 are respectively configured above and below the second plug cavity 207, and the first through hole 208 corresponds to the second through hole 209, as shown in fig. 1-6, similarly, when assembling, the second plug 202 can be inserted into the corresponding second plug cavity 207, so that the lock hole 203 corresponds to the first through hole 208 and the second through hole 209, and the fastener 500 can be inserted, thereby achieving the purpose of locking the second plug 202 transversely, preventing the second plug 202 from falling off, and realizing detachable connection of the corner piece 600 with the edge strip 400 or the adjacent corner piece 600.

In practice, the locking hole 203 may be a circular hole, and accordingly, to be adapted to the circular hole, both the first through hole 208 and the second through hole 209 may be circular holes, and at this time, during assembly, the fastening member 500 having a circular structure may be used for connection, for example, the fastening member 500 may be a fastening member 500 commonly used in the existing tray field; in another preferred embodiment, the locking hole 203 may be a square hole, as shown in fig. 1-6, and accordingly, the first through hole 208 and the second through hole 209 may be square holes for fitting the fastener 500 having a square structure.

Regardless of the structure of the fastening member 500, in order to prevent the end cap of the fastening member 500 from protruding out of the corner body 100 after installation, in a further aspect, a step 210 for accommodating the end cap of the fastening member 500 is configured in the first through hole 208, as shown in fig. 1-6, for example, when the first through hole 208 is a round hole, the first through hole 208 may be a counter-sunk hole; when the first through hole 208 is a square hole, the first through hole 208 may be a square hole, and the step 210 may be formed at both ends of the square hole so as to fit the end cap of the square structure at the top of the fastener 500.

In this embodiment, the first plug 201 and the second plug 202 only play a role of connection, and only need to be adapted to the corresponding plug cavities, without limiting the shapes of the first plug 201 and the second plug 202, but in order to simplify the structure, in a preferred embodiment, the first plug 201 may preferably adopt a sheet structure, as shown in fig. 1 to 3, and correspondingly, the first plug cavity 206 adapted thereto may adopt a rectangular parallelepiped structure, as shown in fig. 1 to 6, which is convenient for both molding and inserting into the corresponding first plug cavity 206; similarly, the second plug 202 may also be a sheet structure, as shown in fig. 1-6, and correspondingly, the second plug cavity 207 adapted thereto may be a rectangular parallelepiped structure, as shown in fig. 1-6, to achieve the same effect; in implementation, the width of the first plug 201 may be smaller than the width of the first plug cavity 206 so as to flow out a proper adjustment gap, and then, in cooperation with the fastener 500 having a square structure and the locking hole 203 having a square hole, the first plug 201 has a degree of freedom of movement relative to the first plug cavity 206, so as to effectively adjust the position of the first plug 201, so that the locking holes 203 may be aligned, thereby smoothly inserting the fastener 500, and solving the problem that the fastener 500 cannot be installed due to a dimensional error generated during production and manufacturing.

Similarly, the width of the second plug 202 may be smaller than the width of the second plug cavity 207, and the same effect can be achieved.

In order to improve the versatility, the number of the first plugging cavities 206 is the same as that of the first plugging connectors 201, and each first plugging cavity 206 is configured at a position corresponding to each first plugging connector 201, as shown in fig. 3 and 4. Similarly, the number of the second plugging cavities 207 may also be the same as the number of the second plugging connectors 202, and the second plugging cavities 207 are respectively configured at positions corresponding to the second plugging connectors 202, so as to facilitate the mutual assembly between the corner piece 600 and the adjacent corner piece 600.

In a more preferred embodiment, the first plug 201 and the second plug 202 may have the same structure, and the first plug 201 and the second plug 202 may be symmetrically disposed at two sides of the corner body 100, as shown in fig. 1-3, in particular, the first plug 201 and the second plug 202 may be symmetrical along a middle plane between the first contact surface 101 and the second contact surface 102 (i.e., the middle plane is equal to a dihedral angle between the first contact surface 101 and the second contact surface 102), because the first plug connector 201 and the second plug connector 202 are identical in structure and are symmetrically arranged, the corner piece 600 can be suitable for any corner of the tray, when the corner piece 600 is used, workers who perform assembly do not need to distinguish the positive and negative directions of the corner piece 600, universality can be obviously improved, the assembly process can be simplified, and the assembly speed can be improved.

In order to fit the main board 300 (i.e. a tray or a tray body, which will not be described in detail later) and the edge strip 400 (or called an extension strip, the edge strip 400 may be installed on one side of the main board 300 to achieve the purpose of widening and collision avoidance, which will not be described in detail later), the corner body 100 is further configured with a first bearing surface 103 and a second bearing surface 104, wherein the first bearing surface 103 and the second bearing surface 104 are parallel to each other and perpendicular to the first contact surface 101 and the second contact surface 102, as shown in fig. 1 to 3, the first bearing surface 103 is disposed on the top of the first contact surface 101 and the second contact surface 102, the second bearing surface 104 is disposed on the bottom of the first contact surface 101 and the second contact surface 102, and the distance between the first bearing surface 103 and the second bearing surface 104 is adapted to the height of the main board 300 or the height of the edge strip 400, so that after the assembly is completed, the first bearing surface 103 may be flush with the upper surface of the main board 300 or the upper surface of the edge strip 400, the second carrying surface 104 may be flush with the lower surface of the main plate 300 or the lower surface of the edge strip 400; as shown in fig. 1 to 4, the first contact surface 101, the second contact surface 102, the first bearing surface 103, the second bearing surface 104, the first outer side surface 105 and the second outer side surface 106 may jointly form the corner body 100, and it is understood that, in implementation, two adjacent surfaces may be directly connected to each other, so that the whole corner body 100 may form a standard rectangular parallelepiped structure, or may be connected to each other by a chamfer or a fillet, so that the corner body 100 may form a similar rectangular parallelepiped structure.

In this embodiment, the process groove 204 may be configured on the first contact surface 101, the second contact surface 102, the first bearing surface 103, the second bearing surface 104, the first outer side surface 105 and/or the second outer side surface 106 to meet the requirement of the forming process of the corner body 100, which is not described herein again.

As shown in fig. 1-6, in the present embodiment, the first through holes 208 may be respectively configured in the first bearing surface 103 and the second bearing surface 104, and the second through holes 209 are respectively communicated with the process grooves 204 configured on the corner body 100, as shown in fig. 4, by configuring the first through holes 208 in the first bearing surface 103 and the second bearing surface 104, so as to arrange the fasteners 500 along the height direction of the corner body 100, which facilitates the connection to be more secure; and the problem of facilitating the installation of the fastening member 500 and the problem of facilitating the removal of the fastening member 500 can be solved by making the second through holes 209 communicate with the process grooves 204 formed at the corner body 100, respectively.

In order to make the assembly of the corner member 600 assembled by using at least two corner members 600 more regular, in a further aspect, the first outer side 105 may be parallel to the first contact surface 101, and the second outer side 106 may be parallel to the second contact surface 102, so that the entire corner body 100 may be configured as a rectangular parallelepiped structure, and in practice, the length (the distance between the first outer side 105 and the first contact surface 101), the width (the distance between the second outer side 106 and the second contact surface 102), and the height (the distance between the first bearing surface 103 and the second bearing surface 104) of the corner body 100 may be determined according to actual requirements, and in a preferred embodiment, the distance between the first outer side 105 and the first contact surface 101 may be an integral multiple of the distance between the second outer side 106 and the second contact surface 102, such as one time, two times, three times, and the like, or the distance between the second outer side 106 and the second contact surface 102 may be an integral multiple of the distance between the first outer side 105 and the first contact surface 101 Integral multiple, such as one time, two times, three times, etc., that is, making the length and width of the corner piece 600 equal or have a multiple relation, not only can assemble more regular corner piece 600 assembly through at least two corner pieces 600, and effectively complement the notches 700 with different sizes, but also can complement the combined trays with different sizes by increasing/decreasing the corner pieces 600.

In practical implementation, the size of the corner body 100 may be determined according to practical requirements, for example, in the corner body 100, the distance between the first carrying surface 103 and the second carrying surface 104 is generally required to be adapted to the height of the main plate 300 or the edge strip 400, and since the height of the main plate 300 and the height of the edge strip 400 are both 150mm in the prior art, in a preferred embodiment, the distance between the first carrying surface 103 and the second carrying surface 104 may be 150 mm.

In corner body 100, the distance between first outer side 105 and first contact surface 101 should match the width of edge strip 400, where the matching means that the distance between first outer side 105 and first contact surface 101 is equal to the width of edge strip 400, or the distance between first outer side 105 and first contact surface 101 is an integer multiple of the width of edge strip 400, or the width of edge strip 400 is an integer multiple of the distance between first outer side 105 and first contact surface 101, for example, in a preferred embodiment, the distance between first outer side 105 and first contact surface 101 may be 50mm, 100mm, or 200mm, and accordingly, the width of edge strip 400 may also be 50mm, 100mm, or 200 mm; the matching mode between the corner body 100 and the edge strip 400 is more flexible, so that the requirements of different size combination trays can be met at low cost.

Likewise, in the corner body 100, the distance between the second outer side 106 and the second contact surface 102 should also match the width of the edge strip 400, where the matching is that the distance between the second outer side 106 and the second contact surface 102 is equal to the width of the edge strip 400, or the distance between the second outer side 106 and the second contact surface 102 is an integer multiple of the width of the edge strip 400, or the width of the edge strip 400 is an integer multiple of the distance between the second outer side 106 and the second contact surface 102, for example, in a preferred embodiment, the distance between the second outer side 106 and the second contact surface 102 may be 50mm, 100mm, or 200mm, and correspondingly, the width of the edge strip 400 may also be 50mm, 100mm, or 200 mm; so that the fitting manner between the corner body 100 and the edge strip 400 is more flexible and the cost is low.

In practice, the minimum number of molds are used for producing the edge strips 400 and the corner pieces 600 with corresponding sizes, and the edge strips 400 and the corner pieces 600 with different numbers and different widths are assembled on the main board 300, so that combined trays with different sizes (at least more than 500 combined trays with different sizes can be obtained), as shown in fig. 6 and 10, the universality can be improved, and the cost can be obviously reduced.

As shown in fig. 1 to 3, in the corner piece 600, the first plug connector 201, the second plug connector 202 and the corner body 100 may be integrally formed, for example, the corner body 100, the first plug connector 201 and the second plug connector 202 may be injection molded; by respectively constructing the first plug connector 201 and the second plug connector 202 on the first contact surface 101 and the second contact surface 102 which are perpendicular to each other, the plug cavities can be constructed in the adjacent edge strip 400 or the corner piece 600 in a matching manner, so that the corner piece 600 is convenient to mount and fix, and the first plug connector 201 and the second plug connector 202 are integrally formed with the corner body 100 without using screws for connection, thereby being beneficial to simplifying the structure of the corner piece 600, reducing the cost and facilitating the assembly. Of course, in practical implementation, the corner body 100, the first plug 201, and the second plug 202 may also be separate components, and in this case, the first plug 201 and the second plug 202 may be respectively connected to the corner body 100 through fasteners, so that the first plug 201, the second plug 202, and the corner body 100 may be connected into a whole.

It can be understood that, in order to make the locking hole 203 meet the requirement of matching with the first plugging cavity 206 or the second plugging cavity 207, a certain distance (distance) should be provided between the locking hole 203 and the corresponding first contact surface 101 or second contact surface 102, and in order to facilitate the integral formation, in a further aspect, at least a portion between the locking hole 203 and the first contact surface 101 is configured with a plurality of process grooves 204 or process holes, as shown in fig. 1-6, which not only enables the portion between the locking hole 203 and the first contact surface 101 to be smoothly injection molded, but also saves materials, and correspondingly, at least a portion between the locking hole 203 and the second contact surface 102 in the second plugging head 202 is configured with a plurality of process grooves 204 or process holes, as shown in fig. 1-6, which can also achieve the same technical effect.

When the process tank 204 is adopted, in order to prevent the problem of water accumulation in the process tank 204 during use, a drain hole 205 is further formed in the bottom of the process tank 204, as shown in fig. 1 and 2, so that water in the process tank 204 can be drained automatically, and the problems of water accumulation, mildew and the like in the process tank 204 can be avoided.

In practical implementation, in order to facilitate the installation of the fastener 500 from the first bearing surface 103 and the second bearing surface 104, the first plug 201 and the second plug 202 should be respectively configured at a position close to the first bearing surface 103 or the second bearing surface 104, so in a preferred embodiment, two sets of first plugs 201 are respectively configured at the upper portion and the lower portion of the first contact surface 101, each set of first plugs 201 includes at least one first plug 201, when each set of first plugs 201 includes at least two first plugs 201, the first plugs 201 in each set are respectively configured at the same height, as shown in fig. 4, 7 and 11, the first plug cavities 206 are respectively configured at positions corresponding to the first plugs 201; similarly, two sets of second connectors 202 are respectively configured at the upper part and the lower part of the second contact surface 102, each set of second connectors 202 includes at least one second connector 202, when each set of second connectors 202 includes at least two second connectors 202, the second connectors 202 in each set are respectively configured at the same height, as shown in fig. 4, 7 and 11, the second plugging cavities 207 are respectively configured at positions corresponding to the second connectors 202; in the corner piece 600, the number of the first plugging connectors 201 in each group of the first plugging connectors 201 and the number of the second plugging connectors 202 in each group of the second plugging connectors 202 may be determined according to actual requirements, for example, according to the size of the corner body 100, the number of the first plugging connectors 201 and the number of the second plugging connectors 202 in each group may be one, two, or more, respectively, for a corner body 100 with a smaller volume (for example, 50mm × 50mm (the former 50mm refers to a distance between the first outer side 105 and the first contact surface 101 being 50mm, the latter 50mm refers to a distance between the second outer side 106 and the second contact surface 102 being 50mm, which is not described herein again), 100mm × 50mm, 50mm × 100mm, 100mm × 100mm, and the like), in a preferred embodiment, as shown in fig. 1 and 7, two groups of the first plugging connectors 201 are configured on the first contact surface 101, and each group of the first plugging connectors 201 includes one first plugging connector 201, the two first connectors 201 are respectively located at the upper part and the lower part of the first contact surface 101, that is, the two first connectors 201 have a set distance in the vertical direction; as shown in fig. 1 and fig. 7, similarly, two sets of second connectors 202 may be configured in the second contact surface 102, and each set of second connectors 202 includes one second connector 202, and the two second connectors 202 are located at the upper portion and the lower portion of the second contact surface 102, respectively, so as to connect the same edge strip 400 or the same corner piece 600 together by using the two first connectors 201 or the two second connectors 202, which is not only beneficial to more firmly installing the corner piece 600, but also beneficial to configuring the mating plug cavities at positions close to the upper surface and the lower surface of the main board 300 or the upper surface and the lower surface of the edge strip 400, thereby facilitating installing the fastener 500.

In a more complete scheme, the two sets of first connectors 201 are symmetrically arranged, the two sets of second connectors 202 are also symmetrically arranged, and the symmetry center can be a cross section of the corner body 100 at the center position along the height direction, so that the corner piece 600 can be used in a vertical/inverted manner, and is beneficial to more flexible use.

For the corner body 100 with a larger volume (for example, the corner body 100 with a size of 200mm × 200mm, etc.), in a preferred embodiment, as shown in fig. 11 and 12, two sets of first connectors 201 are configured in the first contact surface 101, each set of first connectors 201 includes two first connectors 201, and the two first connectors 201 in the same set are configured at the same height, respectively, so that the four first connectors 201 can be distributed in a rectangular shape, as shown in fig. 11 and 12; similarly, two sets of second connectors 202 may be configured in the second contact surface 102, each set of second connectors 202 includes two second connectors 202, and the two second connectors 202 in the same set are configured at the same height, respectively, so that the four second connectors 202 may be distributed in a rectangular shape, as shown in fig. 11 and 12, so as to connect the same edge bar 400 or the same corner piece 600 together by using the four first connectors 201 or the four second connectors 202, which is not only beneficial to more reliable installation of the corner piece 600.

Example 2

In order to improve the bearing capacity of the corner fitting 600, the main difference between the present embodiment 2 and the above embodiment 1 is that in the corner fitting 600 provided by the present embodiment, a channel 107 for installing a reinforcing member is further configured in the corner body 100, as shown in fig. 11 and 12, and the channel 107 at least penetrates through the first contact surface 101 or the second contact surface 102, so that when being assembled, the reinforcing member is inserted into the channel 107, so as to improve the bearing capacity of the corner fitting 600.

It will be appreciated that the reinforcing member may be a rectangular tube as is commonly used in the art, and accordingly, the channel 107 may preferably be a square channel 107 to fit the reinforcing member, but of course, the reinforcing member may also be a circular tube or the like, and the shape of the channel 107 may be adapted thereto.

The number of the channels 107 in the corner body 100 may be determined according to actual requirements, and specifically, the number of the channels 107 may be determined according to the size of the corner body 100, for example, according to the difference of the size of the volume, only one channel 107 may be configured in the corner body 100, and the channel 107 may vertically penetrate through the first contact surface 101 or the second contact surface 102; as another example, at least two mutually perpendicular channels 107 may be formed in the corner body 100, one channel 107 extending through at least the first contact surface 101, the other channel 107 extending through at least the second contact surface 102, and the two channels 107 may be formed near the upper and lower portions of the corner body 100, respectively, so that reinforcing members may be provided from two directions, respectively, to further improve the load-bearing capacity.

Furthermore, to improve the versatility, in a more preferred embodiment, two sets of channels 107 may be configured in the corner body 100, wherein one set of channels 107 is configured at the upper part of the corner body 100, and the set of channels 107 includes two channels 107 which are perpendicular to each other and communicate with each other, as shown in the figure; correspondingly, another set of channels 107 is configured at the lower part of the corner body 100, and the set of channels 107 includes two channels 107 which are perpendicular to each other and are communicated with each other, as shown in fig. 11 and 12, when actually assembling, each set of channels 107 can be provided with a reinforcing component, and the reinforcing component can be arranged in the channel 107 which is perpendicular to the first contact surface 101, and also can be arranged in the channel 107 which is perpendicular to the second contact surface 102, so that the use is facilitated to be more flexible, the main board 300 can be suitable for different corners, and the universality is better.

In order to facilitate assembly, in a further aspect, while one end of each channel 107 penetrates through the first contact surface 101 or the second contact surface 102, the other end of each channel 107 may penetrate through the first outer side 105 corresponding to the first contact surface 101 or the second outer side 106 corresponding to the second contact surface 102, as shown in fig. 11 and 12, that is, the channel 107 may completely penetrate through the entire corner body 100, thereby further facilitating installation of the reinforcing member during assembly; in addition, in a more sophisticated solution, a first adaptive hole 108 is further configured in the first bearing surface 103 and/or the first bearing surface 103 and is communicated with the channel 107, as shown in fig. 11 and 12, specifically, the channel 107 configured at the upper part of the corner body 100 may be communicated with the first adaptive hole 108 configured in the first bearing surface 103, and the channel 107 configured at the lower part of the corner body 100 may be communicated with the first adaptive hole 108 configured in the second bearing surface 104, so as to install a plug at a position corresponding to the first adaptive hole 108 in the channel 107, and a locking member such as a pin may be inserted through the first adaptive hole 108, so as to lock the plug laterally and prevent the plug from falling off, thereby achieving the purpose of preventing the reinforcing member from falling off.

In a more sophisticated version, the corner body 100 is also configured with a second fitting hole 109 communicating with said channel 107, said second fitting hole 109 corresponding to said first fitting hole, for example, the second fitting hole 109 may be coaxial with the first fitting hole 108, as shown in fig. 11 and 12, and the second fitting hole 109 communicates with a process groove 204 configured in the corner body 100 so as to cooperate with the first fitting hole 108 and better lock the plug with the locking member.

Example 3

In order to solve the problem of obtaining as many different size trays as possible at low cost, the present embodiment provides a combined tray, which includes a main board 300 for carrying, as shown in fig. 13, in the present embodiment, the main board 300 may be a single-sided tray (including a single-sided tray with meshes on the surface and a single-sided tray without meshes on the surface), a herringbone tray (including a herringbone tray with meshes on the surface and a herringbone tray without meshes on the surface, as shown in fig. 14), a herringbone tray (including a herringbone tray with meshes on the surface and a herringbone tray without meshes on the surface), or a double-sided tray (including a double-sided tray with meshes on the surface and a double-sided tray without meshes on the surface), and the like; the main board 300 generally includes four side surfaces, and the four side surfaces correspond to each other two by two and are perpendicular to each other, for convenience of description, two adjacent sides of the main board 300 are respectively referred to as a first side 301 and a second side 302, as shown in fig. 13 and 14, in this embodiment, a first edge strip assembly 401 is spliced on the first side 301 of the main board 300, a second edge strip assembly 402 is spliced on the second side 302 of the main board 300, and the first side 301 and the second side 302 are adjacent and perpendicular to each other;

the first side bar assembly 401 includes a side bar 400 or at least two side bars 400 spliced together, for example, as shown in fig. 13 and 14, the first side bar assembly 401 includes two side bars 400 spliced together; the second edge strip assembly 402 includes at least two edge strips 400 that are spliced together, for example, as shown in fig. 13 and 14, the second edge strip assembly 402 includes three edge strips 400 that are spliced together;

as shown in fig. 13 and 14, after the first edge bar assembly 401 and the second edge bar assembly 402 are disposed on the main board 300, a corner (or corner) is necessarily formed at a corner between the first side 301 and the second side 302, and therefore, in the present embodiment, a corner assembly 601 is disposed at the corner formed by the first side 301 and the second side 302, as shown in fig. 13 and 14, the corner assembly 601 is formed by splicing at least two corner pieces 600, and the corner pieces 600 adjacent to the edge bar 400 are respectively connected to the corresponding edge bars 400; specifically, in the present embodiment, the combination tray is formed by splicing three boards, namely, a main board 300, a first edge strip assembly 401, a second edge strip assembly 402 and a corner assembly 601, wherein the first edge strip assembly 401 is disposed on the first side 301 of the main board 300 and is formed by splicing one or at least two edge strips 400, and during actual assembly, the length of the second side 302 can be effectively changed by reasonably selecting the width of the edge strips 400 and the number of the edge strips 400, and the length required by a customer can be obtained, so that the problem that the length of the second side 302 of the tray can be changed can be solved; the second edge strip assembly 402 is arranged on the second side 302 of the main board 300 and is formed by splicing at least two edge strips 400, during actual assembly, the width of the edge strip 400 and the number of the edge strips 400 can be reasonably selected, the length of the first side 301 can be effectively changed, the length required by a customer can be obtained, and the problem that the length of the first side 301 of the tray can be changed can be solved, through the matching of the first edge strip assembly 401 and the second edge strip assembly 402 with the main board 300, during actual production, only one size of the main board 300, for example, the main board 300 with the size of 1200mm multiplied by 1000mm, one or more edge strips 400 (mainly the change of the width) matched with the main board 300 and the plurality of corner pieces 600 are developed, through any combination of the main board 300, the plurality of edge strips 400 and the plurality of corner pieces 600, the combined trays with different lengths and widths can be combined as much as possible, and the problem that the trays with different sizes as much as possible can be obtained at low cost can be solved, and through setting up corner subassembly 601, and corner subassembly 601 is by at least two the corner piece 600 concatenation forms, can mend the breach 700 of various shapes, size that forms in the combined tray assembly process, solve the completion problem of corner under various sizes to regular combined tray can be obtained.

In this embodiment, the main structure of the edge strip 400 may be the same as the existing edge strip 400, to facilitate splicing between the edge strip 400 and splicing between the edge strip 400 and the main plate 300, in a more sophisticated version, the first side 301 and the second side 302 of the main board 300 are respectively configured with a plurality of mounting portions 404, one side of the edge strip 400 is configured with a plurality of assembling heads 405 adapted to the assembling portions 404, and the other side of the edge strip 400 is provided with a plurality of assembling parts 404 matched with the assembling heads 405, each assembling part 404 on the edge strip 400 is in one-to-one correspondence with each assembling head 405, as shown in fig. 13 and 14, the edge strip 400 is connected to the main plate 300 or an adjacent edge strip 400 by the fitting of the fitting head 405 and the fitting part 404, the splicing between the edge strips 400 and the splicing between the edge strips 400 and the main board 300 are realized, so that different sizes can be spliced; in a specific implementation, the structure of the mounting portion 404 may be the same as that of the first receiving portion, and in this case, the structure of the mounting head 405 may be the same as that of the first connecting portion; or, the structure of the assembling portion 404 may be the same as that of the second receiving portion, and in this case, the structure of the assembling head 405 may be the same as that of the second connecting portion, so as to implement the connection by using the fastener 500, which will not be described herein again.

In order to facilitate the connection between the corner piece 600 and the adjacent edge strip 400, in a more sophisticated solution, the end of the edge strip 400 is configured with a matching portion adapted to the first and/or second connection portion, and the structure of the matching portion may be the same as the structure of the first and/or second receiving portion, as shown in fig. 15, that is, the end of the edge strip 400 is configured with a plugging cavity 403 adapted to the first and/or second connection portion, and the upper and lower sides of the plugging cavity 403 are respectively configured with a first through hole 208 and a second through hole 209 communicated with the plugging cavity 403, and the first through hole 208 corresponds to the second through hole 209, and the first through hole 208 is configured on the upper surface or the lower surface of the edge strip 400, as shown in fig. 15.

It can be understood that the width of each edge strip 400 in the combined tray is adapted to the connected corner piece 600, and in the combined tray, the corner piece 600 at the outermost edge and corner may not be provided with the first receiving portion and the second receiving portion, as shown in fig. 14, which is beneficial to the overall combined tray to be more beautiful.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.

Claims

1. Corner piece comprising a corner body, characterized in that the side faces of the corner body are configured with a first contact face, a second contact face, a first outer side face corresponding to the first contact face, and a second outer side face corresponding to the second contact face, wherein,

the first contact surface is adjacent to the second contact surface, a first connecting part and a second connecting part are respectively configured in the first contact surface and the second contact surface,

the first outer side surface is internally provided with a first bearing part which is matched with the first connecting part, and/or the second outer side surface is internally provided with a second bearing part which is matched with the second connecting part.

2. The corner piece according to claim 1, wherein the first connecting portion comprises a first plug configured on the first contact surface and protruding outward, the first plug is configured with a lock hole, the first receiving portion comprises a first plug cavity adapted to the first plug and configured on the first outer side surface, a first through hole and a second through hole communicated with the first plug cavity are respectively configured above and below the first plug cavity, and the first through hole corresponds to the second through hole;

and/or the second connecting part comprises a second plug connector which is constructed on the second contact surface and protrudes outwards, the second plug connector is constructed with a lock hole, the second bearing part comprises a second plug connector which is matched with the second plug connector and is constructed in a second plug cavity on the outer side surface of the second, a first through hole and a second through hole which are communicated with the second plug cavity are respectively constructed above and below the second plug cavity, and the first through hole corresponds to the second through hole.

3. The corner piece according to claim 2, wherein the number of the first plug cavities is the same as the number of the first plugs, and each of the first plug cavities is configured at a position corresponding to each of the first plugs,

and/or the number of the second plugging cavities is the same as that of the second plugging connectors, and the second plugging cavities are respectively constructed at the positions corresponding to the second plugging connectors.

4. The corner piece according to claim 2, wherein the upper part and the lower part of the first contact surface are respectively configured with two groups of first connectors, each group of first connectors comprises at least one first connector, and the first connectors in the same group are respectively configured at the same height; and/or two groups of second plug connectors are respectively constructed at the upper part and the lower part of the second contact surface, each group of second plug connectors at least comprises one second plug connector, and the second plug connectors in the same group are respectively constructed at the same height;

and/or the first plug connector and the second plug connector have the same structure and are symmetrically arranged on the corner body.

5. The corner piece according to any of claims 1-4, wherein the first outer side surface is parallel to the first contact surface and the second outer side surface is parallel to the second contact surface,

the distance between the first outer side face and the first contact face is integral multiple of the distance between the second outer side face and the second contact face, or the distance between the second outer side face and the second contact face is integral multiple of the distance between the first outer side face and the first contact face.

6. The corner piece of claim 5, wherein the spacing between the first outer side surface and the first contact surface is 50mm, 100mm, or 200 mm;

7. The corner piece according to any one of claims 1-4, wherein a channel for mounting a reinforcing member is further configured in the corner body, and the channel extends through at least the first contact surface or the second contact surface.

8. A combined tray comprises a main board for bearing, a first edge strip assembly is spliced on a first side of the main board, a second edge strip assembly is spliced on a second side of the main board, the first side and the second side are adjacent and mutually perpendicular,

a corner assembly is arranged at a corner formed by the first side and the second side, the corner assembly is formed by splicing at least two corner pieces according to any one of claims 1 to 7, and the corner pieces adjacent to the edge strips are respectively connected to the corresponding edge strips.

9. The combined tray as claimed in claim 8, wherein the main board is a single-sided tray, a III-shaped tray, a Tian-shaped tray or a double-sided tray;

and/or the first side and the second side of the main board are respectively provided with a plurality of assembling parts, one side of each edge strip is provided with a plurality of assembling heads matched with the assembling parts, the other side of each edge strip is provided with a plurality of assembling parts matched with the assembling heads, the assembling parts on the edge strips correspond to the assembling heads one by one, and the edge strips are connected to the main board or the adjacent edge strips through the matching of the assembling heads and the assembling parts;

and/or the end part of the edge strip is configured with a matching part matched with the first connecting part and/or the second connecting part, and the structure of the matching part is the same as that of the first matching part and/or the second matching part.

10. The modular tray of claim 9 wherein the structure of the mounting portion is the same as the structure of the first receiving portion, the structure of the mounting head is the same as the structure of the first connecting portion,

or the structure of the assembling part is the same as that of the second bearing part, and the structure of the assembling head is the same as that of the second connecting part.