Connectors and trays

Abstract

The present invention provides a pallet comprising a base and rollers disposed below the base. The base is rectangular and has a base accommodating portion disposed near an edge of the base. The base accommodating portion includes a snap-fitting cavity and a receiving cavity. The snap-fitting cavity and the receiving cavity are disposed near the edge and spaced apart from each other, with the snap-fitting cavity being closer to the edge of the base than the receiving cavity. The connector and pallet according to the present invention facilitate connection and disconnection between the pallets, and the connector is reusable, thereby avoiding waste generated by the reuse of the connector in the prior art and preventing on-site environmental pollution.

Description

Technical Field

[0001] The present invention relates to pallets, and more particularly to connectors for pallets and pallets that can be connected to each other. Background Art

[0002] When a single pallet is used as a unit, the unit size of the existing pallet is generally 800×600mm. During on-site transportation, in order to reduce the number of round trips, the unitized pallets are often connected to each other and then transported by traction. The existing pallet unit connection method generally uses a connecting mechanism or consumables such as disposable cable ties. The connecting mechanism generally has many parts, high coordination requirements, and the parts are easily damaged. When in use or idle, they are exposed to the outside of the product, which is not conducive to product recycling. Secondly, when disposable cable ties are used, the parallel connection needs to be removed during recycling, and the cable ties need to be cut. The cut cable ties are scattered on the site, which is not conducive to on-site environmental maintenance. Even the cable ties scattered on the site may be rolled into the wheel brackets during the transportation of the pallets, thereby posing a hidden danger to the on-site environment and transportation safety. In addition, the long-term use of disposable cable ties also indirectly increases the cost of pallet use.

[0003] Therefore, there is a need in the art for a connector that can conveniently connect trays to each other and can be reused, and trays that can be conveniently connected to each other. Summary of the Invention

[0004] In view of the existing deficiencies, the present invention provides a pallet that can be hinged with a connecting piece so that adjacent pallets can be connected side by side to simultaneously pull multiple pallets for transportation. After the goods are emptied, the pallet can be unlocked with one button and the connecting piece can be hidden in the base accommodating part to facilitate pallet recovery.

[0005] The present invention provides a tray, which includes a base and a roller arranged under the base. The base is in the shape of a rectangular plate. A base accommodating portion is provided near the edge of the base. The base accommodating portion is provided with a snap-fitting cavity and a accommodating cavity. The snap-fitting cavity and the accommodating cavity are arranged near the edge and spaced apart from each other, and the snap-fitting cavity is closer to the edge of the base than the accommodating cavity.

[0006] In one embodiment, the engaging cavity has an upward opening, and a dimension of the engaging cavity in a direction perpendicular to the edge is smaller than a dimension of the engaging cavity in the direction.

[0007] In one embodiment, the base accommodating portion is provided near at least one pair of opposite edges of the base.

[0008] In one embodiment, the base accommodating portion is located on a top surface of the base or a side surface of an edge adjacent to the edge.

[0009] In one embodiment, a connecting member is further included, which includes a connecting strip, and a first locking portion and a second locking portion are respectively provided at both ends of the connecting strip, at least a portion of the connecting strip between the first locking portion and the second locking portion is flexible along the extension direction of the connecting strip, and the locking cavity is configured to be able to be mutually locked with the first locking portion and be pivotally connected with the first locking portion as a pivot and to be mutually locked with the second locking portion.

[0010] In one embodiment, the first engaging portion and the second engaging portion are respectively provided with protruding shafts at both ends perpendicular to the extending direction of the connecting bar.

[0011] In one embodiment, the two protruding shafts of the second engaging portion are respectively disposed on elastic devices, and the elastic devices bias the two protruding shafts toward the outside of the connecting strip.

[0012] In one embodiment, at least one of the two protruding shafts is provided on an elastic sheet extending perpendicular to the connecting strip and parallel to an extending direction of the connecting strip.

[0013] In one embodiment, the two protruding shafts are respectively provided on two elastic pieces that are perpendicular to the connecting bar and extend parallel to the extending direction of the connecting bar, and the two elastic pieces are respectively located on both sides of the connecting bar.

[0014] In one embodiment, a connector operating portion is provided on the outer side of the elastic sheet, and the connector operating portion is a flange spaced apart from the protruding shaft and closer to the center of the connecting strip relative to the protruding shaft.

[0015] In one embodiment, the two protruding axes of the first engaging portion are respectively two ends of a rod-shaped member extending perpendicularly to the extending direction of the connecting bar at the end portion of the connecting bar.

[0016] In one embodiment, the two elastic sheets are connected to each other at ends of the connecting strip via ribs perpendicular to the connecting strip.

[0017] The present invention also provides a connecting piece, which includes a connecting strip, with a first clamping portion and a second clamping portion respectively provided at both ends of the connecting strip, and at least a portion of the connecting strip between the first clamping portion and the second clamping portion is flexible along the extension direction of the connecting strip.

[0018] In one embodiment, the first engaging portion and the second engaging portion are respectively provided with protruding shafts at both ends perpendicular to the extending direction of the connecting bar.

[0019] In one embodiment, the two protruding shafts of the second engaging portion are respectively disposed on elastic devices, and the elastic devices bias the two protruding shafts toward the outside of the connecting strip.

[0020] In one embodiment, at least one of the two protruding shafts is provided on an elastic sheet extending perpendicular to the connecting strip and parallel to an extending direction of the connecting strip.

[0021] In one embodiment, the two protruding shafts are respectively provided on two elastic pieces that are perpendicular to the connecting bar and extend parallel to the extending direction of the connecting bar, and the two elastic pieces are respectively located on both sides of the connecting bar.

[0022] In one embodiment, a connector operating portion is provided on the outer side of the elastic sheet, and the connector operating portion is a flange spaced apart from the protruding shaft and closer to the center of the connecting strip relative to the protruding shaft.

[0023] In one embodiment, the two protruding axes of the first engaging portion are respectively two ends of a rod-shaped member extending perpendicularly to the extending direction of the connecting bar at the end portion of the connecting bar.

[0024] In one embodiment, the two elastic sheets are connected to each other at ends of the connecting strip via ribs perpendicular to the connecting strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective view of a tray according to the present invention.

[0026] Figure 2 This is a perspective view of two pallets according to the present invention connected to each other via a connecting piece according to the present invention, wherein the connecting portion is partially cut away.

[0027] Figure 3-5 yes Figure 2 An enlarged view of the cutaway portion, wherein the connector is in a connected state, an open state, and a stored state respectively.

[0028] Figure 6 3 is a perspective view of a connector according to the present invention, wherein dotted lines respectively show that the connector is in a connected position or a stored position.

[0029] Figure 7 is a perspective view of pallets according to another embodiment of the present invention connected to each other through the connecting member of the present invention, wherein the connecting portion is partially cut away.

[0030] Figure 8-10 yes Figure 7 An enlarged view of the cutaway portion, wherein the connector is in a connected state, an open state, and a stored state respectively.

[0031] Figure 11 is a perspective view of a tray according to another embodiment of the present invention. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0033] In the following description, for the purpose of illustrating the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0034] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, that is, should be interpreted to mean "including, but not limited to."

[0035] See also Figure 1 , shows a three-dimensional view of a pallet 100 according to the present invention. The pallet 100 includes a base 110 and rollers 120 arranged under the base, wherein the base 110 is roughly in the shape of a rectangular plate with a certain thickness. Due to the arrangement of the rollers 120, the pallet 100 can travel on the ground. The base 100 has a pair of long edges 111 and a pair of short edges 112. A base accommodating portion 130 is provided on the upper surface of the base 110. The base accommodating portion 130 is arranged near a pair of long edges 111 of the base 110, and a pair of base accommodating portions 130 spaced apart from each other are provided near each long edge 111. However, it should be understood that the base accommodating portion 130 may also be arranged near a pair of short edges 112. The base accommodating portion 130 near each edge may also be one near the center position or two or more spaced apart from each other. In the illustrated embodiment, the base accommodating portion 130 is located on the upper surface of the base 110. And in Figure 7-10 In another embodiment shown, the base receiving portion 130 can also be provided on the side of the long edge 111 of the base 110. The tray 100 shown in the figure also has recessed cavities at the four corners to facilitate stacking and storage of the trays 100. The structure and principle of the present invention will be described below based on the embodiment shown in the figure.

[0036] Figure 2 1 shows two trays 100 connected to each other by a connector 200 snapping into the base receiving portion 130, wherein the long edges 111 of the two trays 100 are connected to each other. In the figure, the adjacent base receiving portions 130 of the two trays 100 are partially cut away.

[0037] Figure 3-5 Shown in Figure 2 An enlarged view of the cutaway portion, wherein the connector 200 is in a connected state, an open state, and a stored state, respectively.

[0038] like Figure 3 As shown, the base accommodating portion 130 near the long edge 111 of the base 110 is provided with an engaging cavity 131 and an accommodating cavity 132. The engaging cavity 131 and the accommodating cavity 132 are located near the edge 111 and spaced apart from each other, with the engaging cavity 131 being closer to the edge 111 of the base 110 than the accommodating cavity 132. In the illustrated embodiment, the engaging cavity 131 and the accommodating cavity 132 are spaced apart perpendicularly to the edge 111. However, it should be understood that the engaging cavity 131 and the accommodating cavity 132 may also be spaced apart obliquely relative to the edge 111. Preferably, the base accommodating portion 130 is a recessed cavity recessed downwardly from the upper surface of the base 110 to a certain depth, thereby ensuring that the connector 200 does not protrude from the upper surface of the base 110, whether in the connected state or the stored state. The engaging cavity 131 and the accommodating cavity 132 are provided on the recessed bottom surface 134 of the base accommodating portion 130.

[0039] like Figure 6 As shown, the connector 200 includes a connecting bar 210, with a first engaging portion 220 and a second engaging portion 230 respectively provided at each end. At least a portion of the connecting bar 210 between the first and second engaging portions 220, 230 is flexible or pliable along the extending direction of the connecting bar 210. In the illustrated embodiment, the entire connecting bar 210 is made of a flexible material. The first and second engaging portions 220, 230 are configured to engage with the engaging cavities 131 of adjacent base accommodating portions 130 on the bases 110 of two pallets 100 placed side by side, thereby connecting the two pallets 100. Therefore, the length of the connecting bar 210 is approximately twice the distance from the engaging cavity 131 to the edge of the base. Consequently, when the first and second engaging portions 220, 230 are respectively engaged in the engaging cavities 131 of the adjacent pallets 100, the connecting bar 210 remains firmly attached to the base 110, without interfering with the placement of goods on the base 110.

[0040] exist Figure 3-5In the illustrated embodiment, the engaging cavity 131 has an upward opening located on the surface of the concave bottom surface 134. The dimension of this opening in a direction perpendicular to the edge 111 is smaller than the dimension of the engaging cavity 131 in this direction. The first engaging portion 220 and the second engaging portion 230 of the connector 200 are each provided with a protruding shaft 221 and 231 at either end, perpendicular to the connecting strip 210. When the first engaging portion 220 or the second engaging portion 230 is engaged with the engaging cavity 131, the protruding shafts 221 and 231 are located within the engaging cavity 131 parallel to the edge 111. The smaller dimension of the opening of the engaging cavity 131 in a direction perpendicular to the edge 111 than the dimension of the engaging cavity 131 in this direction prevents the first engaging portion 220 or the second engaging portion 230 from being dislodged from the engaging cavity 131 due to the pulling force applied by the connecting strip 210.

[0041] exist Figure 3-5 In the illustrated embodiment, a base stopper 1311 is provided at the opening of the engaging cavity 131. The base stopper 1311 is a cantilevered plate extending inward from the opening edge of the engaging cavity 131 in a direction parallel to the edge 111. However, it should be understood that the engaging cavity 131 may be configured in other ways, as long as the dimension of the opening in a direction perpendicular to the edge 111 is smaller than the dimension of the engaging cavity 131 in that direction.

[0042] like Figure 6 As shown, the first engaging portion 220 is a rod-shaped member extending perpendicularly from one end of the connecting bar 210, and the protruding shafts 221 are the ends of the rod-shaped member. Thus, after being engaged with the engaging cavity 131, the first engaging portion 220 can rotate therein, thereby forming a pivotal connection between the connecting member 200 and the engaging cavity 131. In the illustrated embodiment, the rod-shaped member is cylindrical, but it should be understood that the first engaging portion 220 does not necessarily need to be cylindrical. For example, other centrally symmetrical or asymmetrical rod shapes are sufficient, as long as a portion of the rod can rotate about the central axis within the engaging cavity 131.

[0043] Also like Figure 6As shown, the two protruding shafts 231 of the second engaging portion 230 are respectively disposed on two elastic pieces 232 extending perpendicularly to the connecting bar 210. The two elastic pieces 232 are located on either side of the connecting bar 210. The dimension of the elastic pieces 232 in the direction perpendicular to the connecting bar 210 is no greater than the dimension of the protruding shafts 231 along that direction. Connector operating portions 233 are respectively provided on the outer sides of the two elastic pieces 232. These connector operating portions 233 are flanges extending outward from either side of the elastic pieces 232. These flanges are spaced apart from the protruding shafts 231 and are closer to the center of the connecting bar 210 relative to the protruding shafts 231, i.e., further away from the end of the connecting bar 210 where the second engaging portion 230 is disposed. After the first engaging portion 220 and the second engaging portion 230 are respectively engaged within the engaging cavities 131 of two adjacent trays 100, the trays 100 are connected. To release the connection, the operator can simultaneously press the two connector operating portions 233 toward each other from the outside, thereby driving the two protruding shafts 231 toward each other. This shortens the distance between the distal ends of the two protruding shafts 231, and the second engaging portion 230 can be pulled out of the engaging cavity 131. Preferably, the two elastic pieces 232 are connected to each other at the ends of the connecting bar 210 by ribs 234 perpendicular to the connecting bar 210, thereby further enhancing the rigidity between the two elastic pieces 232 perpendicular to the extending direction of the connecting bar 210.

[0044] However, it should be understood that the two protruding shafts 231 can also be provided on other elastic devices. For example, protruding shaft mounting holes with openings facing both sides can be provided on the connecting bar 210. The two protruding shafts 231 are respectively installed in the protruding shaft mounting holes, and springs are provided between the bottom of the protruding shaft 231 and the bottom of the protruding shaft mounting holes. The bottom periphery of the protruding shaft 231 is provided with a flange, and the opening of the protruding shaft mounting hole is provided with a corresponding stop shoulder to prevent the protruding shaft 231 from falling out of the protruding shaft mounting hole. Corresponding connector operating parts can be provided on the side surfaces of the protruding shaft 231 to facilitate the operator to overcome the elastic force of the spring and squeeze the protruding shafts 231 toward each other, thereby removing the second engaging portion 230 from the engaging cavity 131.

[0045] In addition, it should be understood that it is also possible to arrange that only one of the two protruding shafts 231 is arranged on the elastic device, as long as the two protruding shafts 231 can overcome the elastic force and move closer to each other.

[0046] In the above embodiment, the protruding axes 221 and 231 extend perpendicular to the extension direction of the connecting strip 210, but it should be understood that, as needed, the protruding axes 221 and 231 may also extend at an angle relative to the extension direction of the connecting strip 210, such as in the case where the above-mentioned engaging cavity 131 and the accommodating cavity 132 are spaced apart in a direction inclined relative to the edge 111, as long as the protruding axes 221 and 231 are parallel to each other.

[0047] The shapes of the engaging cavity 131 and the accommodating cavity 132 are configured to roughly match the shape of the second engaging portion 230. Specifically, the depths of the engaging cavity 131 and the accommodating cavity 132 are no less than the length of the elastic piece 232 of the second engaging portion 230. Furthermore, the dimension of the engaging cavity 131 opening perpendicular to the edge 111 is roughly the same as, or slightly smaller than, the radial dimension of the protruding shafts 231 and 221. This allows the first engaging portion 220 or the second engaging portion 230 to form an interference fit or a transition fit with the engaging cavity 131. This prevents the first engaging portion 220 and the second engaging portion 230 from easily falling out of the engaging cavity 131. The dimension of the accommodating cavity 132 perpendicular to the edge 111 is greater than the radial dimension of the protruding shaft 231, allowing the second engaging portion 230 to be easily accommodated within the accommodating cavity 132.

[0048] Figure 7-10 , another embodiment according to the present invention is shown. This embodiment is substantially identical to the previous embodiment, except that a base receiving portion 130' is disposed on the side of the base 110, adjacent to a corner of the tray. Specifically, the bottom receiving portion 130' is located on the side of the long edge 111, adjacent to a corner of the tray. However, it should be understood that the bottom receiving portion 130' could also be disposed on the side of the short edge 112, adjacent to a corner of the tray.

[0049] exist Figure 7 , two trays 100 are shown connected to each other by a connector 200 snapping into the base receiving portion 130'. In this embodiment, when the two trays 100 are in the connected state, the two short edges 112 of the two trays 100 are connected to each other. In the figure, the adjacent base receiving portions 130' of the two trays 100 are partially cut away.

[0050] Figure 8-10 Shown in Figure 7 An enlarged view of the cutaway portion, wherein the connector 200 is in a connected state, an open state, and a stored state, respectively.

[0051] like Figure 8 As shown, a base receiving portion 130' is provided on the side of the short edge 112 of the base 110, near the corner of the tray, with a snap-in cavity 131' and a receiving cavity 132'. The snap-in cavity 131' and the receiving cavity 132' are located near the edge 111 and spaced apart from each other, with the snap-in cavity 131' being closer to the corner of the base 110 than the receiving cavity 132'. In the illustrated embodiment, the snap-in cavity 131' and the receiving cavity 132' are spaced apart along the direction extending from the short edge 112. However, it should be understood that the snap-in cavity 131' and the receiving cavity 132' may alternatively be spaced apart along a direction angled relative to the short edge 112, as desired.

[0052] Preferably, the base receiving portion 130' is a concave cavity recessed to a certain depth into the side of the short edge 112, thereby ensuring that the connector 200 does not protrude from the side of the short edge 112 whether in the connected state or the stored state. The recessed bottom surface 134' of the base receiving portion 130' is provided with a snap-fit ​​cavity 131' and a receiving cavity 132'.

[0053] The connector 200 in this embodiment has the same structure as the connector 200 in the aforementioned embodiment, wherein the first engaging portion 220 and the second engaging portion 230 are each capable of engaging with the engaging cavities 131' of adjacent base accommodating portions 130' on the bases 110 of two adjacent trays 100, thereby connecting the two trays 100. Therefore, the length of the connecting strip 210 is approximately twice the distance from the engaging cavity 131' to the base edge 111. Consequently, when the first engaging portion 220 and the second engaging portion 230 are respectively engaged in the engaging cavities 131' of two adjacent trays 100, the connecting strip 210 remains firmly attached to the base 110, preventing it from protruding beyond the side of the short edge 112 and accidentally interfering with surrounding objects, such as becoming caught on surrounding objects.

[0054] exist Figure 8-10 In the illustrated embodiment, the engaging cavity 131' has an opening located on the surface of the recessed bottom surface 134'. The dimension of this opening in a direction parallel to the short edge 112 is smaller than the dimension of the engaging cavity 131' along this direction. When the first engaging portion 220 or the second engaging portion 230 is engaged with the engaging cavity 131', the protruding shafts 221 and 231 are vertically located within the engaging cavity 131'. The smaller dimension of the opening of the engaging cavity 131' in a direction parallel to the short edge 112 than the dimension of the engaging cavity 131' along this direction prevents the first engaging portion 220 or the second engaging portion 230 from being dislodged from the engaging cavity 131' due to the pulling force applied to them by the connecting strip 210.

[0055] exist Figure 8-10 In the illustrated embodiment, a base stopper 1311' is provided at the opening of the engaging cavity 131'. The base stopper 1311' is a cantilevered plate extending inward from the opening edge of the engaging cavity 131' in a direction parallel to the short edge 112. However, it should be understood that the engaging cavity 131' may be configured in other ways, as long as the dimension of the opening in a direction parallel to the short edge 112 is smaller than the dimension of the engaging cavity 131' in that direction.

[0056] After being inserted into the engagement cavity 131', the first engaging portion 220 can rotate therein, thereby forming a pivotal connection between the connector 200 and the engagement cavity 131'. After the first and second engaging portions 220, 230 are respectively inserted into the engagement cavities 131' of two adjacent trays 100, the trays 100 are connected. To release the connection, the operator can simultaneously press the two connector operating portions 233 toward each other from the outside, thereby moving the two protruding shafts 231 toward each other. This shortens the distance between the distal ends of the two protruding shafts 231, allowing the second engaging portion 230 to be removed from the engagement cavity 131'.

[0057] The shapes of the engaging cavity 131' and the accommodating cavity 132' are designed to roughly match the shape of the second engaging portion 230. Specifically, the depth of the engaging cavity 131' and the accommodating cavity 132' is no less than the length of the elastic piece 232 of the second engaging portion 230. Furthermore, the dimension of the engaging cavity 131' opening perpendicular to the long edge 111 is roughly the same as, or slightly smaller than, the radial dimension of the protruding shafts 231 and 221. This creates an interference fit or a transition fit between the first engaging portion 220 or the second engaging portion 230 and the engaging cavity 131'. This prevents the first engaging portion 220 or the second engaging portion 230 from easily falling out of the engaging cavity 131'. The dimension of the accommodating cavity 132 ′ parallel to the short edge 112 is larger than the radial dimension of the protruding shaft 231 , so that the second engaging portion 230 can be easily accommodated in the accommodating cavity 132 ′.

[0058] The connector 200 and the tray 100 according to the present invention are used as follows:

[0059] To connect two trays 100, the first engaging portion 220 of the connector 200 is first engaged with the engaging cavity 131 / 131' of the base receiving portion 130 / 130' of one tray base 110. The second engaging portion 230 of the connector 200 is then engaged with the corresponding engaging cavity 131 / 131' of the other adjacent tray base 110. To disconnect the two trays 100, the two connector operating portions 233 are first pressed to remove the second engaging portion 230 from the engaging cavity 131 / 131' of the other adjacent tray base 110. The connector 200 is then rotated about the first engaging portion 220 until the second engaging portion 230 can be inserted into the receiving cavity 132 / 132' of the base receiving portion 130 / 130' of the tray base 110. At this time, the two trays 100 are separated from each other, and the connector 200 is placed in the base receiving portion 130 of the tray base 110 without protruding from the surface where the base receiving portion 130 / 130 ′ is located.

[0060] According to the connector 200 and the pallet 100 of the present invention, the pallets 100 can be easily connected and disconnected, and the connector 200 can be reused, avoiding waste generated by repeated use of connectors in the prior art and preventing on-site environmental pollution.

[0061] While preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide further embodiments.

[0062] These and other changes can be made to the embodiments in light of the above detailed description.In general, in the claims, the terms used should not be construed as limited to the specific embodiments disclosed in the specification and claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which these claims are entitled.

Claims

1. A tray, comprising a base and rollers arranged below the base, wherein the base is in the shape of a rectangular plate, characterized in that: A base accommodating portion is provided near an edge of the base, the base accommodating portion being provided with a snap-fitting cavity and an accommodating cavity, the snap-fitting cavity and the accommodating cavity being provided near the edge and spaced apart from each other, and the snap-fitting cavity being closer to the edge of the base than the accommodating cavity; It also includes a connecting member, which includes a connecting strip, and a first clamping portion and a second clamping portion are respectively provided at both ends of the connecting strip, at least a portion of the connecting strip between the first clamping portion and the second clamping portion is flexible along the extension direction of the connecting strip, and the clamping cavity is configured to be able to be mutually clamped with the first clamping portion and pivotally connected with the first clamping portion as a pivot and to be mutually clamped with the second clamping portion.

2. The pallet according to claim 1, wherein: The engaging cavity has an upward opening, and a dimension of the engaging cavity along a direction perpendicular to the edge is smaller than a dimension of the engaging cavity along the edge.

3. The pallet according to claim 1, wherein: The base accommodating portion is provided near at least one pair of opposite edges of the base.

4. The pallet according to claim 1, wherein: The base accommodating portion is located on the top surface of the base or a side surface of an edge adjacent to the edge.

5. The pallet according to claim 1, wherein: The first engaging portion and the second engaging portion are respectively provided with protruding shafts at both ends perpendicular to the extending direction of the connecting bar.

6. The pallet according to claim 5, characterized in that The two protruding shafts of the second engaging portion are respectively arranged on elastic devices, and the elastic devices bias the two protruding shafts toward the outside of the connecting strip.

7. The pallet according to claim 6, characterized in that At least one of the two protruding shafts is arranged on an elastic piece that is perpendicular to the connecting strip and extends parallel to an extending direction of the connecting strip.

8. The pallet according to claim 7, wherein: The two protruding shafts are respectively arranged on two elastic pieces that are perpendicular to the connecting strip and extend parallel to the extending direction of the connecting strip, and the two elastic pieces are respectively located on both sides of the connecting strip.

9. The pallet according to claim 8, characterized in that A connector operating portion is provided on the outer side of the elastic sheet. The connector operating portion is a flange that is spaced apart from the protruding shaft and is closer to the center of the connecting bar relative to the protruding shaft.

10. The pallet according to claim 5, wherein: The two protruding shafts of the first engaging portion are respectively two ends of a rod-shaped member extending perpendicularly to the extending direction of the connecting bar at the end of the connecting bar.

11. The pallet according to claim 8, wherein: The two elastic sheets are connected to each other at ends of the connecting strip through ribs perpendicular to the connecting strip.

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