CN216547258U

CN216547258U - Tray box

Info

Publication number: CN216547258U
Application number: CN202122210751.4U
Authority: CN
Inventors: 孙士国; 苏继军; 鲁亮; 倪建生; 王文博; 李波; 高佑诚
Original assignee: Dalian CIMC Special Logistics Equipment Co Ltd
Current assignee: Dalian CIMC Logistics Equipment Co Ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-05-17
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a tray box. The tray box comprises a chassis, two end walls and two side walls; the chassis upright of the chassis comprises an end wall pivoting outer wall and an end wall pivoting inner wall; the connecting end of the end wall has an end wall pivot shaft for pivotal connection to the end of the chassis; the connecting end of the side wall is pivotally connected to the side part of the chassis; the portion of the end wall pivot outer wall forms an end wall notch wall, the end wall pivot outer wall, the end wall pivot inner wall, and the end wall notch wall form an end wall pivot slot, a space exists between an upper end of the end wall pivot inner wall, and the end wall notch wall to form an end wall mounting notch communicating with the end wall pivot slot, a free end of the end wall pivot shaft passes through the end wall mounting notch into the end wall pivot slot to pivotally connect the end wall to the chassis, the end wall mounting notch facing toward the center of the chassis. Thus, the end wall mounting notch faces the center of the chassis, and the end wall pivot shaft does not fall out of the end wall pivot slot through the end wall mounting notch.

Description

Tray box

Technical Field

The utility model relates to the field of containers, in particular to a pallet box.

Background

Existing pallet cases include a base, end walls, and side walls. Wherein the end wall has a locking aperture. The side wall has a latch hook. With the tray box in the erected condition, portions of the latch hooks can enter the latch holes to lock the end walls to the side walls.

The vertical wall of the chassis upright post of the chassis is provided with a long hole of the chassis upright post. 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 penetrates through the long hole so that the end wall is pivotally connected to the chassis. The chassis upright post is also provided with a mounting opening communicated with the long hole. The mounting opening faces the outside of the chassis for mounting the pivot shaft into the elongated hole from the outside of the chassis. Thus, when the end wall folded on the chassis is turned up to be perpendicular to the chassis, the pivot shaft is easily released from the mounting opening to disconnect the end wall from the chassis. When folding the end walls perpendicular to the chassis, the pivot shaft is easily caught by the mounting opening, so that the operation is not smooth. Particularly when the end wall is thin and the end wall is the outer size of the tray box, and the pivot shaft anti-falling structure cannot be arranged.

To this end, the present invention provides a pallet box to at least partially solve the above problems.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content of the present invention is not intended to define key features or essential features of the claimed solution, nor is it intended to be used to limit the scope of the claimed solution.

To at least partially solve the above technical problems, the present invention provides a tray box,

the tray case includes:

the chassis comprises a chassis, wherein a chassis upright post is arranged at the corner of the chassis, and the chassis upright post comprises an end wall pivoting outer wall and an end wall pivoting inner wall which are spaced along a first horizontal direction;

two end walls, the connecting ends of the end walls having end wall pivot axes extending in a second horizontal direction for pivotal connection to the ends of the chassis;

the connecting ends of the side walls are pivotally connected to the side parts of the chassis;

the part of the end wall pivot outer wall extends along the first horizontal direction to form an end wall gap blocking wall, the end wall gap blocking wall is positioned above the end wall pivot inner wall along the height direction of the chassis, the end wall pivot outer wall, the end wall pivot inner wall and the end wall gap blocking wall form an end wall pivot groove, a space is reserved between the upper end of the end wall pivot inner wall and the end wall gap blocking wall to form an end wall installation gap communicated with the end wall pivot groove, and the free end of the end wall pivot shaft enters the end wall pivot groove through the end wall installation gap so as to enable the end wall to be pivotally connected to the chassis, and the end wall installation gap faces to the center of the chassis.

According to the tray box of the present invention, the end wall mounting notch faces the center of the chassis, so that the force direction of the end wall pivot shaft during the rotation of the end wall between the position folded on the chassis and the position perpendicular to the chassis faces the direction away from the center of the chassis in the first horizontal direction, so that the end wall pivot shaft does not fall out of the end wall pivot groove through the end wall mounting notch.

Optionally, a portion of the connecting end is recessed towards a center of the end wall in the second horizontal direction to form an avoidance gap for avoiding the pivoting inner wall of the end wall when the pallet box is in the erected state.

Optionally, one end of the end wall pivot outer wall extends and projects in the second horizontal direction to form a receiving groove outer wall, and a portion of the receiving groove outer wall extends toward the center of the chassis in the first horizontal direction to form an end wall receiving groove side wall.

Optionally, the connecting end is further provided with a limiting part, the limiting part is located above the pivot shaft of the end wall, and the limiting part is located in the pivot groove of the end wall and located below the notch blocking wall of the end wall.

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

Optionally, an end portion of the end wall in the second horizontal direction has an end pillar, a portion of the end pillar extends and protrudes toward one side of the pivot axis of the end wall in the thickness direction of the end wall to form an end pillar standing wall, and the end pillar standing wall is located on one side of the pivot axis of the end wall near the center of the end wall in the second horizontal direction.

Optionally, the connecting end of the end wall has an end wall underbeam extending in the second horizontal direction, the end wall underbeam has an end wall underbeam inner wall and an end wall underbeam vertical wall, the chassis has a bottom end beam extending in the second horizontal direction, the bottom end beam has a bottom end beam vertical wall, and the tray box is in an erected state with the end wall underbeam inner wall being located inside a portion of the bottom end beam vertical wall and the end wall underbeam vertical wall being located above the bottom end beam vertical wall.

Optionally, the end wall is located between the two side walls in the second horizontal direction and the end wall is located inside the side walls in the first horizontal direction with the pallet box in the erected condition, and/or

The end wall has a locking hole and the side wall has a locking hook for hooking the locking hole, and/or

In the height direction of the chassis, the end wall pivot axis is movably arranged in the end wall pivot groove under the condition that the end wall is folded on the chassis, and/or

The upper corner of the end wall has an end wall guide ramp that is inclined to the second horizontal direction.

Optionally, a portion of the side wall extends along a thickness direction of the side wall to form a lock box wing edge close to the inner side of the side wall, the end wall has a lock box limiting groove, a gap exists between the lock box limiting groove and the upper surface of the end wall, and the lock box wing edge is located in the lock box limiting groove when the tray box is in the assembled state.

Optionally, at least one of the two end wall pivot slots is provided with an end wall mounting notch, the tray case further comprising an end wall tamper stop removably connected to the chassis upright at the end wall mounting notch.

Drawings

In order that the advantages of the utility model will be readily understood, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the utility model and are not therefore to be considered to be limiting of its scope, the utility model will be described and explained with additional specificity and detail through the use of the accompanying drawings.

FIG. 1 is a perspective view of one orientation of a pallet box according to a preferred embodiment of the present invention, wherein the pallet box is in an erected condition;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1 at C;

FIG. 4 is an enlarged partial schematic view of the interior of the tray box of FIG. 1;

FIG. 5 is a perspective view of the tray box of FIG. 1 in another orientation, wherein the tray box is in an assembled state;

FIG. 6 is an enlarged view of a portion of FIG. 5 at D;

FIG. 7 is a perspective view of one orientation of the pallet box of FIG. 1, with the pallet box in a collapsed condition;

FIG. 8 is a perspective view of one orientation of the chassis of the pallet box of FIG. 1;

FIG. 9 is an enlarged view of a portion of FIG. 8 at G;

FIG. 10 is an enlarged partial schematic view of FIG. 8;

FIG. 11 is a perspective view of one orientation of an end wall of the tray box of FIG. 1;

FIG. 12 is an enlarged view of a portion of FIG. 11 at K;

FIG. 13 is an enlarged view of a portion of FIG. 11 at L;

FIG. 14 is an enlarged fragmentary view of FIG. 11 at the pivot axis of the end wall; and

fig. 15 is an enlarged partial schematic view of the interior of the pallet box of fig. 1 at the floor column.

Description of the reference numerals

100: the chassis 110: bottom end beam

111: bottom end beam vertical wall 113: bottom end beam cross arm

120: chassis column 121: end wall pivot outer wall

122: end wall pivot inner wall 123: end wall gap retaining wall

124: end wall pivot slot 125: end wall mounting notch

126: end wall receiving groove outer wall 127: end wall receiving groove

128: the stopper wall 134: end wall receiving channel side wall

150: bottom side member 155: first through hole

200: end wall 201: avoiding gap

202: end box inner face 203: outside the end box

210: the locking piece 211: lock hole

212: lock box limiting groove 213: end wall lead-in ramp

220: end wall underbeam 221: end wall lower beam inner wall

222: end wall underbeam vertical wall 230: end upright post

231: end post inner wall 232: end upright column vertical wall

234: end wall pivot shaft 235: position limiting part

236: end wall fixing shaft 300: side wall

301: side box inner face 302: outside the side box

310: first side wall 320: second side wall

330: the lock assembly 331: lock box

335: the latch hook 341: lock box wing edge

350: side uprights 360: side wall upper beam

400: end wall tamper evidence 417: end wall sheathing panel

421: side wall shroud plate

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the utility model may be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to obscure the embodiments of the utility model.

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the terms "upper", "lower", and the like are used herein for purposes of illustration only and are not to be construed as limiting.

Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, e.g., a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the utility model. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of preferred embodiments of the utility model, however, the utility model is capable of other embodiments in addition to those detailed.

The present embodiment provides a pallet box. Referring to fig. 1-15, the pallet box includes a chassis 100, end walls 200, and side walls 300. The chassis 100, end walls 200, and side walls 300 may form a generally square structure for transporting cargo. For example, for transporting goods such as rubber having elasticity. The end wall 200 is pivotally connected to an end of the chassis 100. The side walls 300 are pivotally connected to the sides of the chassis 100. The tray box has an assembled state and a folded state. With the tray box in the erected condition, the chassis 100 is perpendicular to the end walls 200. The bottom plate 100 is perpendicular to the side wall 300. The end wall 200 is perpendicular to the side wall 300.

As shown in fig. 1, 5, and 7 and 8, the chassis 100 has a generally square configuration. The chassis 100 may be paved with a floor for placing cargo. The four corners of the chassis 100 are each provided with a chassis pillar 120. End wall 200 and side wall 300 hereafter may be connected to chassis pillar 120.

As shown in fig. 8-10, the chassis 100 further includes a bottom end beam 110 and a bottom side beam 150. The bottom side members 150 extend in the first horizontal direction X. One side portion of the chassis 100 is provided with one bottom side member 150, and the other side portion of the chassis 100 is provided with the other bottom side member 150, in the second horizontal direction Y. The second horizontal direction Y is perpendicular to the first horizontal direction X. The bottom end beam 110 extends in a second horizontal direction Y. Along the first horizontal direction X, one end of the chassis 100 is provided with one bottom end beam 110, and the other end of the chassis 100 is provided with the other bottom end beam 110.

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

In the case of the pallet box in the erected state, the bottom end beam vertical wall 111 may be located on the side of the later end wall lower beam inner wall 221 away from the center of the chassis 100. In this way the bottom end beam vertical wall 111 may be used to block the later end wall lower beam inner wall 221 to block the resilient cargo from causing the end wall lower beam inner wall 221 to flex and expand outwardly in the first horizontal direction X in case the resilient cargo is transported through the pallet box. Further, since the thickness dimension of the bottom end beam vertical wall 111 is small, the space in the box occupied by the bottom end beam 110 can be reduced as much as possible, thereby increasing the space in the box of the pallet box in an assembled state as much as possible.

With continued reference to fig. 8-10, portions of the chassis upright 120 extend in the second horizontal direction Y toward the center of the chassis 100 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. In the first horizontal direction X, there is a space 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, and the end wall pivot outer wall 121 is located at the end of the chassis pillar 120. The portion of the end wall pivot outer wall 121 is higher than the end wall pivot inner wall 122.

In the first horizontal direction X, the end wall pivot outer wall 121 partially extends and projects toward the center of the chassis 100 to constitute an end wall notch wall 123. The end wall notch wall 123 is located above the end wall pivot inner wall 122 in the height direction Z of the chassis 100. A space exists between the end wall notch wall 123 and the upper end of the end wall pivot inner wall 122. Thus, the end wall pivot outer wall 121, the end wall pivot inner wall 122, and the end wall notch wall 123 form an end wall pivot slot 124. In the second horizontal direction Y, the end wall pivot opening of the end wall pivot slot 124 faces the other chassis upright 120.

The spacing between the end wall notch wall 123 and the upper end of the end wall pivot inner wall 122 defines an end wall mounting notch 125. The end wall mounting notches 125 are toward the center of the chassis 100. Portions of the end wall pivot shaft 234 hereinafter may be rotatably disposed within the end wall pivot slot 124 to pivotally connect the end wall 200 to the chassis 100. The end wall mounting notches 125 are used to mount and dismount the end wall pivot shaft 234.

In the second horizontal direction Y, a portion of the end wall pivot outer wall 121 on the lower side of the end wall notch wall 123 extends toward the center of the chassis 100 to form an end wall receiving groove outer wall 126. The dimension of the end wall receiving groove outer wall 126 is smaller than the dimension of the end wall pivot outer wall 121 in the height direction Z of the chassis 100. The end of the end wall-receiving groove outer wall 126 near the center of the chassis 100 in the second horizontal direction Y is an end wall-bent end. The end wall bent end portion extends in the first horizontal direction X toward the center of the chassis 100 to the bottom end beam vertical wall 111 to constitute an end wall receiving groove side wall 134. Thus, end wall receiving channel outer wall 126 and end wall receiving channel side wall 134 define end wall receiving channel 127. The end wall receiving slots 127 open in the first horizontal direction X toward the center of the chassis 100. And the opening of the end wall receiving slot 127 faces upwardly. Thus, chassis pillar 120 has high strength.

Referring to fig. 4, 9 and 10, the lower ends of the end posts 230 of the end walls 200 are positioned within the end wall receiving slots 127 when the pallet box is in the erected condition. In the process of rotating the end wall 200 from a position perpendicular to the base plate 100 to a position folded on the base plate 100, the end wall receiving groove 127 can escape the end wall fixing shaft 236 to enable the end wall 200 to rotate normally. Thus, the lower end of the end pillar 230 is closer to the end portion of the chassis pillar 120 in the first horizontal direction X to increase the in-box space of the pallet box in the assembled state. At the same time, the provision of end wall receiving slots 127 provides for the connection of bottom end beam vertical wall 111 to chassis upright 120.

Chassis column 120 also includes a first through hole 155. The first through bore 155 communicates with the end wall pivot slot 124. The first through hole 155 is located at the end wall mounting notch 125 in the height direction Z of the chassis 100. As shown in fig. 6, the tray box further includes an end wall tamper stop 400. End wall tamper evidence 400 may be disposed through first through hole 155 to extend to end wall mounting notch 125 to be operable to block later end wall pivot shaft 234 from exiting end wall pivot slot 124 through end wall mounting notch 125 to detach end wall 200 from chassis 100. In this way, the end wall 200 can be prevented from being lost. Preferably, the end wall tamper evident members 400 are pins.

For any one of the two chassis uprights 120 located at the same end of the chassis 100 in the first horizontal direction X, the end wall pivot outer wall 121 partially extends and projects toward the center of the chassis 100 in the first horizontal direction X to constitute a stopper wall 128. The stop wall 128 and the end wall notch wall 123 are spaced apart along the second horizontal direction Y. At least a portion of the stopper wall 128 is located at the end wall mounting notch 125 for blocking the latter end wall pivot shaft 234 from exiting the end wall pivot slot 124 through the end wall mounting notch 125.

Referring to fig. 1-7, and 11-14, the end wall 200 includes an end wall lower beam 220, an end pillar 230, and an end wall upper beam. The end pillar 230 is located at an end portion of the end wall 200 in the second horizontal direction Y. The end wall lower beam 220 and the end wall upper beam each extend in the second horizontal direction Y. The end wall lower beam 220 is located at the connection end of the end wall 200 (the lower end of the end wall 200 in fig. 1). The end wall upper beam is located at a free end of the end wall 200 (the upper end of the end wall 200 in fig. 1) opposite to the connected end thereof. Thus, the end wall lower beam 220, the end upright 230, and the end wall upper beam form a framework of the end wall 200.

The end wall 200 has an end wall shroud 417 attached to the frame of the end wall 200. The end wall shroud 417 has an end box inner face 202 and an end box outer face 203. The end bin inner face 202 is adjacent the inside of the pallet bin. The end bin outer faces 203 are remote from the inner sides of the tray bins.

As shown in fig. 13, the cross section of the end post 230 (the cross section is perpendicular to the extending direction of the end post 230, that is, the height direction of the pallet box in fig. 1) is configured in an L-shaped structure. The L-shaped structure includes an end post inner wall 231 and an end post upright wall 232. End stud inner wall 231 and end stud upright wall 232 are connected. The end post inner wall 231 is perpendicular to the thickness direction of the end wall 200. The inner side surface of the end pillar inner wall 231 near the inner side of the end wall 200 (the side of the end wall 200 near the center of the chassis 100 in the case where the tray box is in the erected state) overlaps the end box outer surface 203 in the thickness direction of the end wall 200. The end stud upstand wall 232 is perpendicular to the outer side of the end stud inner wall 231, away from the inner side of the end wall 200. End stud wall 232 is located on the side of end stud inner wall 231 that is distal from the inner side of end wall 200. In the second horizontal direction Y, the end pillar upright wall 232 is located on a side of the end pillar inner wall 231 near the center of the end wall 200.

Preferably, the end of the end pillar standing wall 232 far from the end pillar inner wall 231 may extend in the second horizontal direction Y near the center of the end wall 200 to constitute a reinforcing wall. Thereby reinforcing the strength of the end post 230.

In the second horizontal direction Y, a lower end of the end pillar inner wall 231 (the lower end is away from the free end of the end wall 200) is recessed toward the center of the end wall 200 to form an avoidance gap 201. As shown in fig. 15, during the movement of the end wall 200 between the position perpendicular to the bottom tray 100 and the position folded on the bottom tray 100, the avoidance gap 201 can avoid the aforementioned end wall pivot inner wall 122, so that the end wall 200 can normally rotate. Thus, the portion of the end post inner wall 231 located above the relief notch 201 (near the free end of the end wall 200) can be close to the later-described side wall 300. In the case where the tray cases are in the assembled state, the gap between the end wall 200 and the side wall 300 can be reduced as much as possible. When the tray box is in the assembled state, the portion of the end post inner wall 231 located above the escape notch 201 may cover the end wall attachment notch 125 described above. Thus, when the tray box is in the assembled state, the gap between the end wall 200 and the side wall 300 can be reduced as much as possible.

Referring to fig. 11 to 14, the lower end of the end pillar inner wall 231 is provided with a pivot limiting member. The pivot stop is located on the side of the end post inner wall 231 that is distal from the inner side of the end wall 200. The pivot limiting member is fixedly connected to the end pillar inner wall 231. In the second horizontal direction Y, the pivot stopper is located on one side of the end-post standing wall 232 away from the center of the end wall 200.

The pivot limiting part can be formed by bending a steel bar. The pivot limiters include an end wall fixed axle 236 and an end wall pivot axle 234. The end wall fixing shaft 236 extends in the extending direction of the end post 230. End wall fixing shaft 236 is fixedly attached to end post inner wall 231. An end wall securing axle 236 is attached and fixedly connected to the end upright wall 232. The axis of the end wall pivot shaft 234 extends in 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 end wall fixing shaft 236 remote from the free end (upper end) of the end wall 200. In the second horizontal direction Y, the end wall pivot shaft 234 is located on a side of the end wall fixing shaft 236 away from the center of the end wall 200. The free end of the end wall pivot shaft 234 extends beyond the portion of the end post inner wall 231 that forms the relief notch 201 to enter the relief notch 201.

The pivot stopper has a small diameter. In this way, the thickness dimension of the end wall 200 may be small.

An end of the end wall fixing shaft 236 remote from the end wall pivot shaft 234 constitutes a stopper 235. Preferably, the stopper 235 may be a flat surface. When the tray box is in the assembled state, the stopper 235 is parallel to the horizontal direction.

Preferably, one end of the end wall fixing shaft 236 away from the end wall pivot shaft 234 may be bent toward the second horizontal direction Y and extended toward a direction away from the center of the end wall 200 to constitute the aforementioned stopper 235. This can increase the volume of the stopper 235. Further, the strength of the pivot stopper can be increased.

Referring to fig. 8 to 14, when the end wall 200 is mounted to the chassis 100, one end wall pivot shaft 234 of the end wall 200 is moved to the chassis upright 120 provided with the limiting wall 128; the end wall pivot axis 234 is then tilted obliquely downward in a second horizontal direction to minimize the position of its free end; the free end of end wall pivot shaft 234 is then passed through the end wall pivot opening and into end wall pivot slot 124 at chassis upright 120 where retaining wall 128 is located. The other end wall pivot shaft 234 of the end wall 200 is then passed through the end wall mounting notch 125 of the other end wall pivot slot 124 and into the other end wall pivot slot 124. As such, the end wall 200 may be pivotally connected to the chassis 100 by an end wall pivot shaft 234.

When the pallet box is in the assembled state, the stopper 235 is located directly below at least a part of the end wall notch wall 123. Along the second horizontal direction Y, the limiting wall 128 is located on one side of the limiting part 235 far away from the center of the chassis 100, and the limiting part 235 and the limiting wall 128 are staggered. Thus, the end wall notch wall 123 can block the stopper 235, thereby restricting the movement of the end wall 200 in the height direction Z of the tray box.

When the end wall 200 is rotated about the axis of the end wall pivot shaft 234, the stopper 235 is moved away from the end wall pivot slot 124. The end wall notch wall 123 now does not block the stop 235. In this way, the end wall pivot axis 234 can move in the height direction Z of the chassis 100. In this manner, in the case where it is desired to place the tray box in the folded state, the end walls 200 can be moved in the height direction of the chassis 100 so that the folding of the two end walls 200 is not in sequential order.

The end wall 200 is detachably connected to the chassis 100. When it is desired to remove the end wall 200 attached to the chassis 100, the end wall tamper evident barrier 400 previously described is removed. At this time, the pivot stop can be removed through the end wall mounting notch 125 at the end where the end wall tamper evident stop 400 was previously installed (the end wall mounting notch 125 is at the end where the end wall tamper evident stop 400 was previously installed) to move the end wall pivot shaft 234 out of the end wall pivot slot 124. The end wall 200 is then moved in the second horizontal direction Y to move the end wall pivot shaft 234 at one end of the stopper wall 128 out of the end wall pivot slot 124. Removal of the end wall 200 is complete.

It should be noted that the process of attaching the end wall 200 to the chassis 100 is the reverse of the process of detaching the chassis 100 as described above, and will not be described herein. Thus, the operation of attaching and detaching the end wall 200 to and from the chassis 100 is facilitated.

With the end wall mounting notches 125 facing the center of the chassis 100. Therefore, 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 is directed away from the center of the chassis 100 in the first horizontal direction X. Such that the end wall pivot shaft 234 does not exit the end wall pivot slot 124 through the end wall mounting notch 125.

In the present embodiment, along the second horizontal direction Y, the chassis column 120 located at one end of the chassis 100 is provided with the stopper wall 128, and the chassis column 120 located at the other end of the chassis 100 is provided with the end wall anti-detachment stopper 400. It is noted that in an embodiment not shown, the four chassis uprights of the chassis are each provided with a first through hole, and with an end wall tamper stop. Without providing a stopper wall. At this time, both end wall pivot shafts of the end wall can be mounted and dismounted from the end wall mounting notches.

As shown in fig. 11 and 13, the end wall underbeam 220 includes an end wall underbeam inner wall 221 and an end wall underbeam vertical wall 222. The end wall underbeam inner wall 221 is connected to the end wall underbeam vertical wall 222. The inner side surface of the end wall lower beam inner wall 221 near the inner side of the end wall 200 in the thickness direction of the end wall 200 is lapped to the end tank outer face 203. The end wall lower beam vertical wall 222 is perpendicular to the outer side of the end wall lower beam inner wall 221 away from the inner side 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 in 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 near the center of the end wall 200 in the extending direction of the end pillar 230.

Preferably, the end wall lower beam vertical wall 222 may be bent toward the extending direction of the end pillar 230 and near the center of the end wall 200 so that the area of the cross section of the end wall lower beam 220 (the cross section is perpendicular to the second horizontal direction Y) increases. Thereby, the strength of the end wall lower beam 220 can be increased.

Referring to fig. 8 to 13, in the assembled state of the tray box, the inner wall 221 of the end wall lower beam is located inside the vertical wall 111 of the bottom end beam near the center of the chassis 100. That is, the bottom end beam vertical wall 111 is located outside the end wall lower beam inner wall 221 (the side of the end wall lower beam inner wall 221 away from the center of the chassis 100). Thereby, the end wall lower beam 220 can be prevented from bulging outward. Further, the end wall lower beam vertical wall 222 is located above the bottom end beam vertical wall 111. In this way, in the case where the tray box is in the erected state, the portion of the end wall 200 located above the end wall lower beam vertical wall 222 in the first horizontal direction X can be as far away from the center of the chassis as possible, so that the internal space of the tray box in the erected state can be increased as much as possible.

As shown in fig. 12, the end wall 200 is also provided with a latch 210. The locking element 210 may be a casting. The locking elements 210 are located at the corners of the end wall 200. The latch 210 is connected to the end post 230 and the end wall upper beam. Along the second horizontal direction Y, the outer end face of the locking element 210, which is far away from the end wall upper beam, is provided with a locking hole 211. With the tray box in the assembled state, portions of the later locking hooks 335 may enter the locking holes 211 to be hooked to the locking holes 211 to lock the end wall 200 to the side wall 300.

The surface of the locking element 210 facing away from the inner side of the end wall 200 is recessed towards the inner side of the end wall 200 in the thickness direction of the end wall 200 to form a lock case retaining groove 212. Along the extending direction of the end post 230, there is a space between the lock case retaining groove 212 and the top end surface of the locking element 210 (the top end surface is the surface of the locking element 210 away from the connecting end). When the pallet box is in the assembled state, the later lock box wing edges 341 enter the lock box limiting grooves 212. In this way, the side walls 300 can be restricted from moving in the height direction of the chassis 100 relative to the end walls 200.

As shown in fig. 12, the edge of the latch 210 adjacent the side wall 300 is provided with an end wall guide ramp 213. The end wall guide slope 213 is inclined to the second horizontal direction Y. For each position of the end wall guide slope 213 in the extending direction of the end post 230, one end of the end wall guide slope 213 near the center of the end wall 200 is farther away from the inner side of the end wall 200 than the other end thereof in the second horizontal direction Y. One end of the end wall guide slope 213 near the center of the end wall 200 is farther away from the inner side of the end wall 200 than the other end thereof in the extending direction of the end post 230. In this way, the end wall guide ramps 213 prevent the latch 210 of the end wall 200 from interfering with the lower beams of the side walls later when the pallet box is being converted from the collapsed position to the erected position.

As shown in fig. 1 to 5, the sidewall 300 has a sidewall sheathing panel 421 connected to a frame of the sidewall 300. The side wall sheathing panel 421 has a side case inner face 301 and a side case outer face 302. The side bin inner faces 301 are adjacent the inner side of the tray bin. The side bin outer faces 302 are remote from the inner sides of the tray bins.

As shown in fig. 1 and 2, the side wall 300 also includes a lock assembly 330. The lock assembly 330 includes a lock case 331. The lock case 331 may be a casting. The lock case 331 may be constructed in a substantially rectangular structure. Lock case 331 is located at a corner of the free end of side wall 300. Lock box 331 is connected to sidewall upper beams 360 and side uprights 350 as part of the frame that forms sidewall 300.

The latch assembly 330 also includes a latch hook 335. The latch hook 335 of the first sidewall 310 is a first latch hook. The latch hook 335 of the second sidewall 320 is a second latch hook. The latch hook 335 is rotatably connected to the latch case 331. If the tray box is in an assembled state, the hook portions of the locking hooks 335 can enter the locking holes 211 of the end wall 200 to hook the locking holes 211, thereby locking the end wall 200 to the side wall 300.

The end wall 200 may rotate as the hook portion of the latch hook 335 exits the latch aperture 211 of the end wall 200.

Preferably, as shown in fig. 2 and 12, the portion of the lock case 331 away from the end of the sidewall upper beam 360 in the first horizontal direction X is a wing portion. The wing edge portion extends and protrudes toward the inside of the side wall 300 (the side of the side wall 300 close to the center of the chassis 100 in the case where the pallet box is in the erected state) in the thickness direction of the side wall 300 to constitute a lock box wing edge 341. With the pallet box in the assembled state, the lock box flanges 341 extend into the lock box retaining grooves 212 of the locking elements 210 to block the movement of the side walls 300 relative to the end walls 200 in the height direction Z of the chassis 100. In addition, the lock box wings 341 may block the locking element 210, thereby blocking the end wall 200 from rotating outward (the end wall 200 rotating away from being folded into the chassis 100).

Preferably, the latch hook 335 is a plate. Thus, the latch hook 335 has a small thickness dimension. The size of the locking aperture of the end wall 200 may also be small. Thus, the thickness of the end wall 200 can be reduced as much as possible, and the height dimension of the tray box in the folded state can be reduced, and the volume of the tray box can be increased.

As shown in fig. 1 to 7, the sidewall 300 includes a first sidewall 310 and a second sidewall 320. With the tray case in the erected condition, if it is desired to have the tray case in the folded condition, it is possible to fold either one of the two end walls 200, then fold the other one of the two end walls 200, then fold the first side wall 310, and finally fold the second side wall 320. In this way, in the folded state of the tray box, 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 in the height direction Z of the chassis 100.

Preferably, the thickness dimension of the end wall 200 ranges from 14mm to 16 mm. Further preferably, the thickness dimension of the end wall 200 is 15 mm. The thickness dimension of the sidewall 300 ranges from 18mm to 21 mm. Further preferably, the thickness dimension of the sidewall 300 is 20 mm.

Preferably, neither the side wall 300 nor the end wall 200 protrudes beyond the outer contour of the chassis 100 when the side wall 300 and the end wall 200 are connected to the chassis 100. Therefore, the transportation is convenient.

Preferably, the end wall 200 is located between the two side walls 300 in the second horizontal direction Y with the tray box in the erected state. The end wall 200 does not protrude from the side wall 300 in the first horizontal direction X to be located inside the side wall 300.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the utility model to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

Claims

1. A pallet box, characterized in that it comprises:

a chassis, corners of the chassis being provided with chassis uprights comprising end wall pivot outer and inner walls spaced apart in a first horizontal direction;

two side walls, the connecting ends of the side walls are pivotally connected to the side portions of the chassis;

the part of the end wall pivot outer wall extends along the first horizontal direction to form an end wall gap blocking wall, the end wall gap blocking wall is located above the end wall pivot inner wall along the height direction of the chassis, the end wall pivot outer wall, the end wall pivot inner wall and the end wall gap blocking wall form an end wall pivot groove, a gap exists between the end wall gap blocking wall and the end wall gap blocking wall to form an end wall installation gap communicated with the end wall pivot groove, the free end of the end wall pivot shaft passes through the end wall installation gap to enter the end wall pivot groove, so that the end wall is in pivot connection with the chassis, and the end wall installation gap faces to the center of the chassis.

2. The tray case of claim 1, wherein portions of the connecting ends are recessed toward a center of the end walls in the second horizontal direction to form an escape notch for escaping the pivot inner walls of the end walls when the tray case is in the erected condition.

3. The tray case of claim 1, wherein one end of the end wall pivot outer wall extends and projects in the second horizontal direction to form a receiving slot outer wall, and a portion of the receiving slot outer wall extends toward the center of the base tray in the first horizontal direction to form an end wall receiving slot side wall.

4. The tray box of claim 1, wherein the connecting end is further provided with a limiting portion, the limiting portion is located above the end wall pivot shaft, and the limiting portion is located in the end wall pivot groove and below the end wall notch blocking wall.

5. A pallet box according to claim 4, characterized in that the surface of the retainer remote from the pivot axis of the end wall is a plane, which is parallel to the horizontal direction in the assembled condition of the pallet box.

6. The tray case of claim 1, wherein an end portion of the end wall in the second horizontal direction has an end pillar, a portion of which is projected in a thickness direction of the end wall toward one side of the end wall pivot axis to form an end pillar standing wall, the end pillar standing wall being located on one side of the end wall pivot axis in the second horizontal direction which is close to a center of the end wall.

7. The tray bin of claim 1, wherein the connecting end of the end wall has an end wall underbeam extending in the second horizontal direction, the end wall underbeam has an end wall underbeam inner wall and an end wall underbeam vertical wall, the chassis has a bottom end beam extending in the second horizontal direction, the bottom end beam has a bottom end beam vertical wall, the tray bin is in an erected condition with the end wall underbeam inner wall being located inside a portion of the bottom end beam vertical wall, the end wall underbeam vertical wall being located above the beam vertical wall.

8. The pallet box of claim 1,

the end wall is located between the two side walls in the second horizontal direction and inside the side walls in the first horizontal direction in the assembled state of the tray box, and/or

The end wall has a locking hole, the side wall has a locking hook for hooking the locking hole, and/or

The end wall pivot shaft is movably arranged in the end wall pivot groove under the condition that the end wall is folded on the chassis along the height direction of the chassis, and/or

9. The tray case according to claim 1, wherein a portion of the side wall extends in a thickness direction of the side wall close to an inner side of the side wall to form a lock case wing, the end wall has a lock case retaining groove, a space is provided between the lock case retaining groove and an upper surface of the end wall, and the lock case wing is positioned in the lock case retaining groove when the tray case is in the assembled state.

10. The tray bin of claim 1 wherein at least one of the two end wall pivot slots is provided with the end wall mounting notch, the tray bin further comprising an end wall tamper stop removably connected to the chassis upright at the end wall mounting notch.