Pallet box

Abstract

The invention discloses a pallet box. The pallet box comprises a chassis, two end walls and two side walls; the chassis column of the chassis comprises an end wall pivot outer wall and an end wall pivot inner wall; the connecting end of the end wall has an end wall pivot shaft for pivoting to the end of the chassis; the connecting end of the side wall is pivotally connected to the side of the chassis; the part of the end wall pivot outer wall constitutes an end wall notch retaining wall, the end wall pivot outer wall, the end wall pivot inner wall, and the end wall notch retaining wall constitute an end wall pivot groove, there is a gap between the upper end of the end wall pivot inner wall and the end wall notch retaining wall to constitute an end wall mounting notch connected to the end wall pivot groove, the free end of the end wall pivot shaft passes through the end wall mounting notch and enters the end wall pivot groove, so that the end wall is pivotally connected to the chassis, and the end wall mounting notch faces the center of the chassis. As a result, the end wall mounting notch faces the center of the chassis, and the end wall pivot shaft will not escape from the end wall pivot groove through the end wall mounting notch.

Description

Technical Field

[0001] The present invention relates to the field of containers, and more particularly to pallet boxes. Background Art

[0002] Existing pallet boxes include a chassis, end walls and side walls. The end walls have lock holes. The side walls have lock hooks. When the pallet box is in an assembled state, a part of the lock hook can enter the lock hole to lock the end wall to the side wall.

[0003] On the vertical wall of the chassis column of the chassis, there is a long hole of the chassis column. The long axis of the long hole extends along the height direction of the chassis. The lower end of the end wall is provided with a pivot shaft. The pivot shaft passes through the long hole so that the end wall is pivotally connected to the chassis. The chassis column also has a mounting opening communicating with the long hole. The mounting opening faces the outside of the chassis for loading the pivot shaft into the long hole from the outside of the chassis. Thus, when the end wall folded on the chassis is turned upward to be perpendicular to the chassis, the pivot shaft is easily disengaged from the mounting opening, so that the connection between the end wall and the chassis is disconnected. When the end wall perpendicular to the chassis is folded on the chassis, the pivot shaft is easily stuck by the mounting opening, making the operation not smooth. Especially when the end wall is thin and the end wall is the outer dimension of the pallet box, and no anti-disengagement structure for the pivot shaft can be provided.

[0004] Therefore, the present invention provides a pallet box to at least partially solve the above problems. Summary of the Invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the specific embodiment section. The Summary of the Invention section of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above technical problems, the present invention provides a pallet box,

[0007] The pallet box includes:

[0008] A chassis, the corners of the chassis are provided with chassis columns, and the chassis columns include an end wall pivot outer wall and an end wall pivot inner wall spaced apart along a first horizontal direction;

[0009] Two end walls, the connecting ends of the end walls have an end wall pivot shaft extending along a second horizontal direction for pivotally connecting to the ends of the chassis;

[0010] Two side walls, the connecting ends of the side walls are pivotally connected to the sides of the chassis;

[0011] A portion of the end wall pivot outer wall extends along a first horizontal direction to form an end wall notch stopper. Along the height direction of the chassis, the end wall notch stopper is located above the end wall pivot inner wall. The end wall pivot outer wall, the end wall pivot inner wall, and the end wall notch stopper form an end wall pivot groove. There is a gap between the upper end of the end wall pivot inner wall and the end wall notch stopper to form an end wall mounting notch connected to the end wall pivot groove. The free end of the end wall pivot shaft passes through the end wall mounting notch and enters the end wall pivot groove, so that the end wall is pivotally connected to the chassis, and the end wall mounting notch faces the center of the chassis.

[0012] According to the pallet box of the present invention, the end wall mounting notch is toward the center of the chassis, so that when the end wall rotates between a position folded on the chassis and a position perpendicular to the chassis, the force direction of the end wall pivot axis is along the first horizontal direction toward a direction away from the center of the chassis, so that the end wall pivot axis will not escape from the end wall pivot groove through the end wall mounting notch.

[0013] Optionally, a portion of the connection end is recessed toward the center of the end wall along the second horizontal direction to form an avoidance gap, and when the pallet box is in an assembled state, the avoidance gap is used to avoid the pivoting inner wall of the end wall.

[0014] Optionally, one end of the end wall pivot outer wall extends and protrudes along the second horizontal direction to form an outer wall of the accommodating groove, and along the first horizontal direction, part of the outer wall of the accommodating groove extends toward the center of the chassis to form a side wall of the end wall accommodating groove.

[0015] Optionally, the connection end is further provided with a limiting portion, which is located above the end wall pivot axis, in the end wall pivot groove, and below the end wall notch stop wall.

[0016] Optionally, a surface of the limiting portion away from the end wall pivot axis is a plane, and when the pallet box is in an assembled state, the plane is parallel to the horizontal direction.

[0017] Optionally, the end of the end wall along the second horizontal direction has an end column, and part of the end column extends and protrudes along the thickness direction of the end wall toward one side of the end wall pivot axis to form an end column wall. Along the second horizontal direction, the end column wall is located on one side of the end wall pivot axis close to the center of the end wall.

[0018] Optionally, the connecting end of the end wall has an end wall lower beam extending along the second horizontal direction, the end wall lower beam has an end wall lower beam inner wall and an end wall lower beam vertical wall, the chassis has a bottom end beam extending along the second horizontal direction, the bottom end beam has a bottom end beam vertical wall, and when the pallet box is in an assembled state, the end wall lower beam inner wall is located on the inner side of a portion of the bottom end beam vertical wall, and the end wall lower beam vertical wall is located above the bottom end beam vertical wall.

[0019] Optionally, when the tray box is in the assembled state, along the second horizontal direction, the end wall is located between the two side walls, and along the first horizontal direction, the end wall is located inside the side wall, and / or

[0020] The end wall has a keyhole, and the side wall has a locking hook for hooking the keyhole, and / or

[0021] Along the height direction of the chassis, when the end wall is folded on the chassis, the end wall pivot shaft is movably arranged in the end wall pivot groove, and / or

[0022] The upper corner of the end wall has an end wall guiding inclined surface, and the end wall guiding inclined surface is inclined to the second horizontal direction.

[0023] Optionally, a part of the side wall extends close to the inner side of the side wall along the thickness direction of the side wall to form a lock box flange, the end wall has a lock box limit groove, and there is a gap between the lock box limit groove and the upper surface of the end wall. When the tray box is in the assembled state, the lock box flange is located in the lock box limit groove.

[0024] Optionally, at least one of the two end wall pivot grooves is provided with an end wall mounting notch, and the tray box further includes an end wall anti-disassembly blocking member, and the end wall anti-disassembly blocking member is detachably connected to the chassis column and is located at the end wall mounting notch. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To make the advantages of the present invention easier to understand, the present invention briefly described above will be described in more detail by referring to the specific embodiments shown in the drawings. It can be understood that these drawings only depict typical embodiments of the present invention, and thus should not be considered as limiting its protection scope. The present invention is described and explained with additional features and details through the drawings.

[0026] Figure 1 A three-dimensional schematic diagram of a tray box in one direction according to a preferred embodiment of the present invention, wherein the tray box is in the assembled state;

[0027] Figure 2 For Figure 1 Partial enlarged schematic diagram at A of;

[0028] Figure 3 For Figure 1 Partial enlarged schematic diagram at C of;

[0029] Figure 4 For Figure 1 Partial enlarged schematic diagram of the interior of the tray box of;

[0030] Figure 5 For Figure 1 Another three-dimensional schematic diagram of the tray box in one direction, wherein the tray box is in the assembled state;

[0031] Figure 6 is Figure 5 a partial enlarged view of part D of

[0032] Figure 7 is Figure 1 a three-dimensional view of a pallet box of in one direction, where the pallet box is in a folded state;

[0033] Figure 8 is Figure 1 a three-dimensional view of the chassis of the pallet box of in one direction;

[0034] Figure 9 is Figure 8 a partial enlarged view of part G of ;

[0035] Figure 10 is Figure 8 a partial enlarged view of ;

[0036] Figure 11 is Figure 1 a three-dimensional view of the end wall of the pallet box of in one direction;

[0037] Figure 12 is Figure 11 a partial enlarged view of part K of ;

[0038] Figure 13 is Figure 11 a partial enlarged view of part L of ;

[0039] Figure 14 is Figure 11 a partial enlarged view at the end wall pivot shaft of ; and

[0040] Figure 15 is Figure 1 a partial enlarged view at the chassis upright post inside the pallet box of .

[0041] Explanation of Reference Numerals

[0042] 100: Chassis 110: Bottom Beam

[0043] 111: Bottom Beam Vertical Wall 113: Bottom Beam Horizontal Arm

[0044] 120: Chassis Upright Post 121: End Wall Pivot Outer Wall

[0045] 122: End Wall Pivot Inner Wall 123: End Wall Notch Retaining Wall

[0046] 124: End Wall Pivot Slot 125: End Wall Mounting Notch

[0047] 126: End Wall Receiving Groove Outer Wall 127: End Wall Receiving Groove

[0048] 128: Limit wall 134: Side wall of end wall receiving groove

[0049] 150: Bottom side beam 155: First through hole

[0050] 200: End wall 201: Avoidance notch

[0051] 202: Inner surface of end box 203: Outer surface of end box

[0052] 210: Locking member 211: Lock hole

[0053] 212: Lock box limiting groove 213: End wall guiding inclined surface

[0054] 220: Lower beam of end wall 221: Inner wall of lower beam of end wall

[0055] 222: Vertical wall of lower beam of end wall 230: End vertical column

[0056] 231: Inner wall of end vertical column 232: Standing wall of end vertical column

[0057] 234: End wall pivot shaft 235: Limiting part

[0058] 236: End wall fixing shaft 300: Side wall

[0059] 301: Inner surface of side box 302: Outer surface of side box

[0060] 310: First side wall 320: Second side wall

[0061] 330: Locking component 331: Lock box

[0062] 335: Lock hook 341: Lock box flange

[0063] 350: Side vertical column 360: Upper beam of side wall

[0064] 400: End wall anti-disassembly blocking part 417: End wall cover plate

[0065] 421: Side wall cover plate Detailed implementation manners

[0066] In the following description, numerous specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the embodiments of the present invention, some well-known technical features are not described.

[0067] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be noted that the terms "upper", "lower" and similar expressions used herein are for illustrative purposes only and are not limiting.

[0068] In this document, ordinal numbers such as "first" and "second" cited in this application are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" does not imply the existence of a "second component" by itself, and the term "second component" does not imply the existence of a "first component" by itself.

[0069] In order to thoroughly understand the embodiments of the present invention, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below. However, in addition to these detailed descriptions, the present invention may have other embodiments.

[0070] This embodiment provides a pallet box. Please refer to Figures 1 to 15 , the pallet box includes a chassis 100, end walls 200, and side walls 300. The chassis 100, end walls 200, and side walls 300 can form a substantially square structure for transporting goods. For example, it is used to transport elastic goods such as rubber. The end walls 200 are pivotally connected to the ends of the chassis 100. The side walls 300 are pivotally connected to the sides of the chassis 100. The pallet box has an assembled state and a folded state. When the pallet box is in the assembled state, the chassis 100 is perpendicular to the end walls 200. The chassis 100 is perpendicular to the side walls 300. The end walls 200 are perpendicular to the side walls 300.

[0071] As Figure 1 , Figure 5 , and Figure 7 and Figure 8 shown, the chassis 100 is a substantially square structure. A floor can be laid on the chassis 100 for placing goods. Chassis columns 120 are provided at all four corners of the chassis 100. The subsequent end walls 200 and side walls 300 can be connected to the chassis columns 120.

[0072] As Figures 8 to 10 shown, the chassis 100 further includes bottom end beams 110 and bottom side beams 150. The bottom side beams 150 extend along the first horizontal direction X. Along the second horizontal direction Y, one bottom side beam 150 is provided on one side of the chassis 100, and another bottom side beam 150 is provided on the other side of the chassis 100. The second horizontal direction Y is perpendicular to the first horizontal direction X. The bottom end beams 110 extend along the second horizontal direction Y. Along the first horizontal direction X, one bottom end beam 110 is provided at one end of the chassis 100, and another bottom end beam 110 is provided at the other end of the chassis 100.

[0073] Preferably, the cross-section of the bottom end beam 110 (the cross-section is perpendicular to the second horizontal direction Y) is configured as an L-shaped structure. The L-shaped structure includes a bottom end beam vertical wall 111 and a bottom end beam cross arm 113. The bottom end beam vertical wall 111 and the bottom end beam cross arm 113 are connected. The bottom end beam cross arm 113 is perpendicular to the height direction Z of the chassis 100. The floor can be lapped on the upper surface of the bottom end beam cross arm 113. The bottom end beam vertical wall 111 is perpendicular to the first horizontal direction X. The bottom end beam vertical wall 111 is located above the bottom end beam cross arm 113. Along the first horizontal direction X, the bottom end beam vertical wall 111 is located on the side of the bottom end beam cross arm 113 away from the center of the chassis 100.

[0074] When the pallet box is in the assembled state, the bottom end beam vertical wall 111 can be located on the side of the inner wall 221 of the end wall lower beam away from the center of the chassis 100 as described later. In this way, the bottom end beam vertical wall 111 can be used to block the inner wall 221 of the end wall lower beam as described later, so as to block the elastic goods and prevent the inner wall 221 of the end wall lower beam from bending and bulging along the first horizontal direction X when transporting elastic goods through the pallet box. In addition, since the thickness dimension of the bottom end beam vertical wall 111 is small, the space occupied by the bottom end beam 110 in the box can be reduced as much as possible, so as to increase the space in the box of the pallet box in the assembled state as much as possible.

[0075] Please continue to refer to Figures 8 to 10 , a part of the chassis column 120 extends towards the center of the chassis 100 along the second horizontal direction Y to form an end wall pivot outer wall 121 and an end wall pivot inner wall 122. Both the end wall pivot outer wall 121 and the end wall pivot inner wall 122 are perpendicular to the first horizontal direction X. Along the first horizontal direction X, there is a gap between the end wall pivot outer wall 121 and the end wall pivot inner wall 122. The end wall pivot outer wall 121 is located on the side of the end wall pivot inner wall 122 away from the center of the chassis 100. The end wall pivot outer wall 121 is located at the end of the chassis column 120. A part of the end wall pivot outer wall 121 is higher than the end wall pivot inner wall 122.

[0076] Along the first horizontal direction X, a part of the end wall pivot outer wall 121 extends and protrudes towards the center of the chassis 100 to form an end wall notch blocking wall 123. Along the height direction Z of the chassis 100, the end wall notch blocking wall 123 is located above the end wall pivot inner wall 122. There is a gap between the end wall notch blocking wall 123 and the upper end of the end wall pivot inner wall 122. In this way, the end wall pivot outer wall 121, the end wall pivot inner wall 122, and the end wall notch blocking wall 123 form an end wall pivot groove 124. Along the second horizontal direction Y, the end wall pivot opening of the end wall pivot groove 124 faces another chassis column 120.

[0077] The gap between the end wall notch stop wall 123 and the upper end of the end wall pivot inner wall 122 forms an end wall mounting notch 125. The end wall mounting notch 125 faces the center of the chassis 100. A part of the subsequent end wall pivot shaft 234 is rotatably arranged in the end wall pivot groove 124 to pivotally connect the end wall 200 and the chassis 100. The end wall mounting notch 125 is used for disassembling and assembling the end wall pivot shaft 234.

[0078] Along the second horizontal direction Y, the part of the end wall pivot outer wall 121 located below the end wall notch stop wall 123 extends towards the center of the chassis 100 to form an outer wall 126 of the end wall receiving groove. Along the height direction Z of the chassis 100, the size of the outer wall 126 of the end wall receiving groove is smaller than that of the end wall pivot outer wall 121. Along the second horizontal direction Y, the end of the outer wall 126 of the end wall receiving groove close to the center of the chassis 100 is the end wall bending end. The end wall bending end extends towards the center of the chassis 100 along the first horizontal direction X to the bottom beam vertical wall 111 to form a side wall 134 of the end wall receiving groove. In this way, the outer wall 126 of the end wall receiving groove and the side wall 134 of the end wall receiving groove form an end wall receiving groove 127. Along the first horizontal direction X, the opening of the end wall receiving groove 127 faces the center of the chassis 100. And the opening of the end wall receiving groove 127 faces upwards. Thus, the chassis column 120 has high strength.

[0079] Please refer to Figure 4 、 Figure 9 and Figure 10 , when the tray box is in the assembled state, the lower end of the end column 230 of the end wall 200 is located in the end wall receiving groove 127. During the process of rotating the end wall 200 from a position perpendicular to the chassis 100 to a position folded on the chassis 100, the end wall receiving groove 127 can avoid the subsequent end wall fixing shaft 236 to enable the end wall 200 to rotate normally. Thus, the lower end of the end column 230 is closer to the end of the chassis column 120 along the first horizontal direction X to increase the internal space of the tray box in the assembled state. At the same time, the setting of the end wall receiving groove 127 realizes the connection between the bottom beam vertical wall 111 and the chassis column 120.

[0080] The chassis column 120 further includes a first through hole 155. The first through hole 155 communicates with the end wall pivot groove 124. Along the height direction Z of the chassis 100, the first through hole 155 is located at the end wall mounting notch 125. As Figure 6 shown, the tray box further includes an end wall anti-disassembly stopper 400. The end wall anti-disassembly stopper 400 can pass through the first through hole 155 and extend to the end wall mounting notch 125, so as to be able to block the subsequent end wall pivot shaft 234 from leaving the end wall pivot groove 124 through the end wall mounting notch 125, thereby removing the end wall 200 from the chassis 100. In this way, the loss of the end wall 200 can be prevented. Preferably, the end wall anti-disassembly stopper 400 is a pin.

[0081] For any one of the two chassis columns 120 located at the same end of the chassis 100 along the first horizontal direction X, along the first horizontal direction X, a part of the end wall pivot outer wall 121 extends convexly toward the center of the chassis 100 to form a limiting wall 128. Along the second horizontal direction Y, the limiting wall 128 and the end wall notch retaining wall 123 are spaced apart. At least a part of the limiting wall 128 is located at the end wall mounting notch 125 for blocking the subsequent end wall pivot shaft 234 from leaving the end wall pivot groove 124 through the end wall mounting notch 125.

[0082] Please refer to Figures 1 to 7 , and Figures 11 to 14 , the end wall 200 includes an end wall lower beam 220, end columns 230, and an end wall upper beam. The end columns 230 are located at the ends of the end wall 200 along the second horizontal direction Y. Both the end wall lower beam 220 and the end wall upper beam extend along the second horizontal direction Y. The end wall lower beam 220 is located at the connecting end of the end wall 200 ( Figure 1 the lower end of the end wall 200 in Figure 1 ). The end wall upper beam is located at the free end of the end wall 200 opposite to its connecting end (

[0083] the upper end of the end wall 200 in

[0084] As Figure 13 shown, the cross-section of the end column 230 (the cross-section is perpendicular to the extending direction of the end column 230, that is, Figure 1 the height direction of the pallet box in

[0085] Preferably, the end of the end column vertical wall 232 away from the inner wall 231 of the end column may extend along the second horizontal direction Y towards the center of the end wall 200 to form a strengthening wall, thereby strengthening the strength of the end column 230.

[0086] Along the second horizontal direction Y, the lower end of the inner wall 231 of the end column (the lower end away from the free end of the end wall 200) is recessed towards the center of the end wall 200 to form an avoidance notch 201. As Figure 15 shown, during the process of the end wall 200 moving between the position perpendicular to the chassis 100 and the position folded on the chassis 100, the avoidance notch 201 can avoid the aforementioned inner wall 122 of the end wall pivot, so that the end wall 200 can rotate normally. Thus, the part of the inner wall 231 of the end column above the avoidance notch 201 (close to the free end of the end wall 200) can be close to the side wall 300 described later. When the tray box is in the assembled state, the gap between the end wall 200 and the side wall 300 can be minimized as much as possible. When the tray box is in the assembled state, the part of the inner wall 231 of the end column above the avoidance notch 201 can cover the aforementioned mounting notch 125 of the end wall. Thus, when the tray box is in the assembled state, the gap between the end wall 200 and the side wall 300 can be minimized as much as possible.

[0087] Please refer to Figures 11 to 14 , a pivot limiting member is provided at the lower end of the inner wall 231 of the end column. The pivot limiting member is located on the side of the inner wall 231 of the end column away from the inner side of the end wall 200. The pivot limiting member is fixedly connected to the inner wall 231 of the end column. Along the second horizontal direction Y, the pivot limiting member is located on the side of the vertical wall 232 of the end column away from the center of the end wall 200.

[0088] The pivot limiting member can be formed by bending a steel bar. The pivot limiting member includes an end wall fixed shaft 236 and an end wall pivot shaft 234. The end wall fixed shaft 236 extends along the extending direction of the end column 230. The end wall fixed shaft 236 is fixedly connected to the inner wall 231 of the end column. The end wall fixed shaft 236 is attached to and fixedly connected to the vertical wall 232 of the end column. The axis of the end wall pivot shaft 234 extends along the second horizontal direction Y. The axis of the end wall pivot shaft 234 is perpendicular to the axis of the end wall fixed shaft 236. One end of the end wall pivot shaft 234 is connected to one end of the free end (upper end) of the end wall fixed shaft 236 away from the end wall 200. Along the second horizontal direction Y, the end wall pivot shaft 234 is located on the side of the end wall fixed shaft 236 away from the center of the end wall 200. The free end of the end wall pivot shaft 234 extends out of the part of the inner wall 231 of the end column that forms the avoidance notch 201 to enter the avoidance notch 201.

[0089] The diameter size of the pivot limiting member is small. In this way, the thickness size of the end wall 200 can be small.

[0090] One end of the end wall fixed shaft 236 away from the end wall pivot shaft 234 constitutes a limiting portion 235. Preferably, the limiting portion 235 can be a plane. When the tray box is in the assembled state, the limiting portion 235 is parallel to the horizontal direction.

[0091] Preferably, one end of the end wall fixed shaft 236 away from the end wall pivot shaft 234 can be bent toward the second horizontal direction Y and extend in a direction away from the center of the end wall 200 to form the aforementioned limiting portion 235. Thereby, the volume of the limiting portion 235 can be increased. In addition, the strength of the pivot limiting member can be increased.

[0092] Please refer to Figures 8 to 14 , when installing the end wall 200 to the chassis 100, first move one end wall pivot shaft 234 of the end wall 200 to the chassis column 120 provided with the limiting wall 128; then tilt the end wall pivot shaft 234 obliquely downward along the second horizontal direction so that the position of its free end is the lowest; then make the free end of the end wall pivot shaft 234 pass through the end wall pivot opening and thus enter the end wall pivot groove 124 at the chassis column 120 provided with the limiting wall 128. Then, make the other end wall pivot shaft 234 of the end wall 200 pass through the end wall installation notch 125 of the other end wall pivot groove 124 and thus enter the other end wall pivot groove 124. In this way, the end wall 200 can be pivotally connected to the chassis 100 through the end wall pivot shaft 234.

[0093] When the tray box is in the assembled state, the limiting portion 235 is located directly below at least part of the end wall notch retaining wall 123. Along the second horizontal direction Y, the limiting wall 128 is located on the side of the limiting portion 235 away from the center of the chassis 100, and the limiting portion 235 and the limiting wall 128 are staggered. In this way, the end wall notch retaining wall 123 can block the limiting portion 235, thereby restricting the movement of the end wall 200 in the height direction Z of the tray box.

[0094] When rotating the end wall 200 around the axis of the end wall pivot shaft 234 to make the limiting portion 235 leave the end wall pivot groove 124. At this time, the end wall notch retaining wall 123 cannot block the limiting portion 235. In this way, the end wall pivot shaft 234 can move along the height direction Z of the chassis 100. Thus, when it is necessary to make the tray box in the folded state, the end wall 200 can be moved along the height direction of the chassis 100 so that the folding of the two end walls 200 can be in any order.

[0095] The end wall 200 is detachably connected to the chassis 100. When the end wall 200 connected to the chassis 100 needs to be removed, the end wall anti-disassembly stopper 400 is first removed. At this time, the pivot limiter can be removed through the end wall installation notch 125 located at the end where the end wall anti-disassembly stopper 400 was previously installed (the end wall installation notch 125 is located at the place where the end wall anti-disassembly stopper 400 was previously installed), so that the end wall pivot shaft 234 is moved out of the end wall pivot groove 124. Then, the end wall 200 is moved along the second horizontal direction Y, so that the end wall pivot shaft 234 located at one end of the limiting wall 128 is moved out of the end wall pivot groove 124. The removal of the end wall 200 is completed.

[0096] It should be noted that the process of connecting the end wall 200 to the chassis 100 is opposite to the process of removing the chassis 100, which will not be described in detail. Thus, the operation of connecting the end wall 200 to the chassis 100 and removing it from the chassis 100 is convenient.

[0097] Since the end wall installation notch 125 faces the center of the chassis 100, during the rotation of the end wall 200 between the position folded on the chassis 100 and the position perpendicular to the chassis 100, the force direction of the end wall pivot shaft 234 faces the direction away from the center of the chassis 100 along the first horizontal direction X. In this way, the end wall pivot shaft 234 will not escape from the end wall pivot groove 124 through the end wall installation notch 125.

[0098] In this embodiment, along the second horizontal direction Y, the chassis column 120 at one end of the chassis 100 is provided with a limiting wall 128, and the chassis column 120 at the other end of the chassis 100 is provided with an end wall anti-disassembly stopper 400. It should be noted that in an embodiment not shown, the four chassis columns of the chassis are all provided with a first through hole and an end wall anti-disassembly stopper. No limiting wall is required. In this case, both end wall pivot axes of the end wall can be installed and removed from the end wall installation notch.

[0099] like Figure 11 and Figure 13 As shown, the end wall lower beam 220 includes an end wall lower beam inner wall 221 and an end wall lower beam vertical wall 222. The end wall lower beam inner wall 221 and the end wall lower beam vertical wall 222 are connected. Along the thickness direction of the end wall 200, the inner side surface of the end wall lower beam inner wall 221 close to the inner side of the end wall 200 is overlapped to the end box outer surface 203. The end wall lower beam vertical wall 222 is perpendicular to the outer side surface of the end wall lower beam inner wall 221 away from the inner side of the end wall 200. Along the thickness direction of the end wall 200, the end wall lower beam vertical wall 222 is located on the side of the end wall lower beam inner wall 221 away from the inner side of the end wall 200. Along the extension direction of the end column 230, the end wall lower beam vertical wall 222 is located on the side of the end wall lower beam inner wall 221 close to the center of the end wall 200.

[0100] Preferably, the vertical wall 222 of the lower end-wall beam can be oriented towards the extending direction of the end column 230 and bent near the center of the end wall 200 so as to increase the area of the cross-section of the lower end-wall beam 220 (the cross-section is perpendicular to the second horizontal direction Y). Thereby, the strength of the lower end-wall beam 220 can be increased.

[0101] Please refer to Figures 8 to 13 , when the tray box is in the assembled state, the inner wall 221 of the lower end-wall beam is located inside the vertical wall 111 of the bottom beam near the center of the chassis 100. That is to say, the vertical wall 111 of the bottom beam is located outside the inner wall 221 of the lower end-wall beam (the side of the inner wall 221 of the lower end-wall beam away from the center of the chassis 100). Thereby, the outward expansion of the lower end-wall beam 220 can be prevented. In addition, the vertical wall 222 of the lower end-wall beam is located above the vertical wall 111 of the bottom beam. In this way, when the tray box is in the assembled state, along the first horizontal direction X, the part of the end wall 200 located above the vertical wall 222 of the lower end-wall beam can be as far away from the center of the chassis as possible, so that the internal space of the tray box in the assembled state can be increased as much as possible.

[0102] As Figure 12 shown, the end wall 200 is further provided with a locking member 210. The locking member 210 can be a casting. The locking member 210 is located at the corner of the end wall 200. The locking member 210 is connected to the end column 230 and the upper end-wall beam. Along the second horizontal direction Y, a locking hole 211 is provided on the outer end surface of the locking member 210 away from the upper end-wall beam. When the tray box is in the assembled state, a part of the locking hook 335 described later can enter the locking hole 211, so as to be hooked to the locking hole 211 to lock the end wall 200 to the side wall 300.

[0103] Along the thickness direction of the end wall 200, the surface of the locking member 210 away from the inner side of the end wall 200 is recessed towards the inner side of the end wall 200 to form a locking box limiting groove 212. Along the extending direction of the end column 230, there is a gap between the locking box limiting groove 212 and the top end surface of the locking member 210 (the top end surface is the surface of the locking member 210 away from the connecting end). When the tray box is in the assembled state, a part of the locking box flange 341 described later enters the locking box limiting groove 212. In this way, the movement of the side wall 300 relative to the end wall 200 along the height direction of the chassis 100 can be limited.

[0104] As Figure 12As shown, an end wall guiding slope 213 is provided at an edge of the locking member 210 close to the side wall 300. The end wall guiding slope 213 is inclined to the second horizontal direction Y. For each position of the end wall guiding slope 213 along the extending direction of the end column 230, along the second horizontal direction Y, one end of the end wall guiding slope 213 close to the center of the end wall 200 is farther from the inner side of the end wall 200 than the other end. Along the extending direction of the end column 230, one end of the end wall guiding slope 213 close to the center of the end wall 200 is farther from the inner side of the end wall 200 than the other end. In this way, when the tray box is converted from the folded state to the assembled state, the end wall guiding slope 213 can prevent the locking member 210 of the end wall 200 from interfering with the side wall lower beam described later.

[0105] As Figures 1 to 5 shown, the side wall 300 has a side wall cover plate 421 connected to the frame of the side wall 300. The side wall cover plate 421 has an inner side surface 301 of the side box and an outer side surface 302 of the side box. The inner side surface 301 of the side box is close to the inner side of the tray box. The outer side surface 302 of the side box is far from the inner side of the tray box.

[0106] As Figure 1 and Figure 2 shown, the side wall 300 further includes a locking component 330. The locking component 330 includes a lock box 331. The lock box 331 can be a casting. The lock box 331 can be configured as a substantially rectangular structure. The lock box 331 is located at a corner of the free end of the side wall 300. The lock box 331 is connected to the side wall upper beam 360 and the side column 350 to be a part of the frame constituting the side wall 300.

[0107] The locking component 330 further includes a lock hook 335. The lock hook 335 of the first side wall 310 is the first lock hook. The lock hook 335 of the second side wall 320 is the second lock hook. The lock hook 335 is rotatably connected to the lock box 331. If the tray box is in the assembled state, the hook portion of the lock hook 335 can enter the lock hole 211 of the end wall 200 to hook the lock hole 211, thereby locking the end wall 200 to the side wall 300.

[0108] When the hook portion of the lock hook 335 leaves the lock hole 211 of the end wall 200, the end wall 200 can rotate.

[0109] Preferably, as Figure 2 and Figure 12As shown, along the first horizontal direction X, the portion of the lock box 331 away from the end of the side wall upper beam 360 is the flange portion. Along the thickness direction of the side wall 300, the flange portion extends and protrudes toward the inner side of the side wall 300 (the side closer to the center of the chassis 100 when the tray box is in the assembled state) to form the lock box flange 341. When the tray box is in the assembled state, the lock box flange 341 extends into the lock box limiting groove 212 of the aforementioned locking member 210 to block the movement of the side wall 300 relative to the end wall 200 in the height direction Z of the chassis 100. In addition, the lock box flange 341 can block the locking member 210, thereby blocking the outward rotation of the end wall 200 (the end wall 200 rotates in the direction away from the position folded on the chassis 100).

[0110] Preferably, the lock hook 335 is a plate member. In this way, the thickness dimension of the lock hook 335 is small. The size of the lock hole on the end wall 200 can also be small. Thus, the thickness of the end wall 200 can be reduced as much as possible, thereby reducing the height dimension of the tray box in the folded state and increasing the volume of the tray box.

[0111] As Figures 1 to 7 shown, the side wall 300 includes a first side wall 310 and a second side wall 320. When the tray box is in the assembled state, if it is necessary to make the tray box in the folded state, any one of the two end walls 200 can be folded first, then the other of the two end walls 200 can be folded, then the first side wall 310 can be folded, and finally the second side wall 320 can be folded. In this way, when the tray box is in the folded state, along the height direction Z of the chassis 100, the end wall 200 is located below the side wall 300, and the first side wall 310 is located below the second side wall 320.

[0112] Preferably, the thickness dimension range of the end wall 200 is 14 mm to 16 mm. More preferably, the thickness dimension of the end wall 200 is 15 mm. The thickness dimension range of the side wall 300 is 18 mm to 21 mm. More preferably, the thickness dimension of the side wall 300 is 20 mm.

[0113] Preferably, when the side wall 300 and the end wall 200 are connected to the chassis 100, neither the side wall 300 nor the end wall 200 protrudes beyond the outer contour of the chassis 100. Thus, it is convenient for transportation.

[0114] Preferably, when the tray box is in the assembled state, along the second horizontal direction Y, the end wall 200 is located between the two side walls 300. Along the first horizontal direction X, the end wall 200 does not protrude beyond the side wall 300 and is located inside the side wall 300.

[0115] The present invention has been described by the above embodiments. However, it should be understood that the above embodiments are for illustrative and exemplary purposes only, and are not intended to limit the present invention to the scope of the described embodiments. In addition, those skilled in the art can understand that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of protection required by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalent scope.

[0116] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Terms such as "component" as used herein can represent either a single part or a combination of multiple parts. Terms such as "mounted" and "arranged" as used herein can represent either a component being directly attached to another component or a component being attached to another component through an intermediate member. Features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

Claims

1. A pallet box, characterized in that, The tray box includes: A chassis, with chassis columns provided at the corners of the chassis. The chassis columns include an end-wall pivot outer wall and an end-wall pivot inner wall spaced apart along a first horizontal direction. Along the first horizontal direction, the end-wall pivot outer wall is located on the side away from the center of the chassis relative to the end-wall pivot inner wall; Two end walls, with the connecting ends of the end walls having end-wall pivot shafts extending along a second horizontal direction for pivotally connecting to the ends of the chassis; Two side walls, with the connecting ends of the side walls pivotally connected to the sides of the chassis; A part of the end-wall pivot outer wall extends and protrudes towards the center of the chassis along the first horizontal direction to form an end-wall notch retaining wall. Along the height direction of the chassis, the end-wall notch retaining wall is located above the end-wall pivot inner wall. The end-wall pivot outer wall, the end-wall pivot inner wall, and the end-wall notch retaining wall form an end-wall pivot groove. There is a gap between the upper end of the end-wall pivot inner wall and the end-wall notch retaining wall to form an end-wall mounting notch communicating with the end-wall pivot groove. The free end of the end-wall pivot shaft passes through the end-wall mounting notch and enters the end-wall pivot groove, thereby pivotally connecting the end wall to the chassis. The end-wall mounting notch faces the center of the chassis.

2. The pallet box according to claim 1, characterized in that, A part of the connecting end is recessed towards the center of the end wall along the second horizontal direction to form an avoidance notch. When the tray box is in the assembled state, the avoidance notch is used to avoid the end-wall pivot inner wall.

3. The pallet box according to claim 1, characterized in that, One end of the end-wall pivot outer wall extends and protrudes along the second horizontal direction to form a receiving groove outer wall. Along the first horizontal direction, a part of the receiving groove outer wall extends towards the center of the chassis to form a side wall of the end-wall receiving groove.

4. The pallet box according to claim 1, characterized in that, The connecting end is further provided with a limiting portion, which is located above the end-wall pivot shaft, within the end-wall pivot groove, and below the end-wall notch retaining wall.

5. The pallet box according to claim 4, characterized in that, The surface of the limiting portion away from the end-wall pivot shaft is a plane, which is parallel to the horizontal direction when the tray box is in the assembled state.

6. The pallet box according to claim 1, characterized in that, The end of the end wall along the second horizontal direction has an end column. A part of the end column extends and protrudes towards the side of the end-wall pivot shaft along the thickness direction of the end wall to form an end-column standing wall. Along the second horizontal direction, the end-column standing wall is located on the side closer to the center of the end wall relative to the end-wall pivot shaft.

7. The pallet box according to claim 1, characterized in that, The connecting end of the end wall has an end-wall lower beam extending along the second horizontal direction. The end-wall lower beam has an end-wall lower-beam inner wall and an end-wall lower-beam vertical wall. The chassis has a bottom-end beam extending along the second horizontal direction. The bottom-end beam has a bottom-end-beam vertical wall. When the tray box is in the assembled state, the end-wall lower-beam inner wall is located inside the part of the bottom-end-beam vertical wall, and the end-wall lower-beam vertical wall is located above the bottom-end-beam vertical wall.

8. The pallet box according to claim 1, characterized in that, When the tray box is in the assembled state, along the second horizontal direction, the end wall is located between the two side walls. Along the first horizontal direction, the end wall is located inside the side walls, and / or The end wall has a keyhole, and the side wall has a locking hook for hooking the keyhole, and / or In the height direction of the chassis, when the end wall is folded on the chassis, the end wall pivot shaft is movably arranged in the end wall pivot groove, and / or The upper corner of the end wall has an end wall guiding inclined surface, and the end wall guiding inclined surface is inclined to the second horizontal direction.

9. The pallet box according to claim 1, characterized in that, A part of the side wall extends close to the inner side of the side wall in the thickness direction of the side wall to form a lock box flange. The end wall has a lock box limiting groove, and there is a gap between the lock box limiting groove and the upper surface of the end wall. When the tray box is in the assembled state, the lock box flange is located in the lock box limiting groove.

10. The pallet box according to claim 1, characterized in that, At least one of the two end wall pivot grooves is provided with the end wall mounting notch. The tray box further includes an end wall anti-disassembly blocking member, and the end wall anti-disassembly blocking member is detachably connected to the chassis column and is located at the end wall mounting notch.

Images