CN113968400A

CN113968400A - Tray box

Info

Publication number: CN113968400A
Application number: CN202010719021.4A
Authority: CN
Inventors: 苏继军; 鲁亮; 李波
Original assignee: China International Marine Containers Group Co Ltd; CIMC Containers Holding Co Ltd; Dalian CIMC Logistics Equipment Co Ltd; Dalian CIMC Special Logistics Equipment Co Ltd
Current assignee: China International Marine Containers Group Co Ltd; Dalian CIMC Logistics Equipment Co Ltd; CIMC Transpack Technology Co Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2022-01-25

Abstract

The invention provides a tray box, which comprises a chassis and an end wall; the four corners of the chassis are provided with corner columns, each corner column is provided with a mounting groove, each mounting groove is provided with a side opening, and at least one of the mounting grooves of the two corner columns positioned at the same end of the chassis is provided with a top opening communicated with the side openings; the end walls are arranged at two ends of the chassis and can move between an assembling position arranged along the vertical direction and a folding position overlapped on the chassis, lower corner pieces are arranged at two sides of the bottom of the end walls, pin shafts are arranged on the lower corner pieces, and the pin shafts are at least partially positioned in the mounting grooves and can move up and down along the side openings; the corner stand is provided with the locating part, and lower corner fitting is provided with the step, and the step is including the spacing face that is located the top and the first inclined plane that is located the bottom, and first inclined plane inclines for spacing face, and when the end wall was located the state of assemblage position, the locating part was located the upside of spacing face. According to the tray box, the assembly efficiency can be improved, and the production cost can be reduced.

Description

Tray box

Technical Field

The invention relates to the technical field of containers, in particular to a tray box.

Background

Foldable tray cases are known in which the end walls and side walls are mounted on the chassis after the respective assembly is completed. For a tray box in which the end walls are detachably mounted on the chassis, the connecting structure of the end walls and the chassis is generally complicated, and a fastener may be required, resulting in troublesome mounting and dismounting of the end walls, resulting in low assembly efficiency and high production cost.

Therefore, there is a need to provide a pallet box that at least partially solves the above problems.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

To at least partially solve the above problems, the present invention discloses a tray box, comprising:

the corner column is provided with a mounting groove, the mounting groove is provided with a side opening, and at least one of the mounting grooves of the two corner columns positioned at the same end of the chassis is provided with a top opening communicated with the side opening; and

the end walls are arranged at two ends of the chassis and can move between an assembling position arranged along the vertical direction and a folding position overlapped on the chassis, lower corner pieces are arranged at two sides of the bottom of the end walls, pin shafts are arranged on the lower corner pieces, and the pin shafts are at least partially positioned in the mounting grooves and can move up and down along the side openings;

the corner upright post is provided with a limiting piece, the lower corner piece is provided with a step part, the step part comprises a limiting surface positioned at the top and a first inclined surface positioned at the bottom, the first inclined surface is inclined relative to the limiting surface, and when the end wall is positioned in the state of the assembly position, the limiting piece is positioned on the upper side of the limiting surface so as to prevent the pin shaft from exiting from the top opening.

According to the tray box, the end walls and the chassis are simple in structure, the end walls are convenient to mount and dismount, the assembly efficiency of the tray box can be improved, and the production cost can be reduced.

Optionally, the first inclined plane and the pin shaft are located at the bottom end of the lower corner piece, and the outer peripheral surface of the pin shaft is tangent to the bottom surface and the outer side surface of the lower corner piece.

Optionally, the stopper surface is disposed in a horizontal direction in a state where the end wall is located at the assembling position, and/or

The first inclined surface is inclined at an angle of 10 ° to 30 ° with respect to the vertical direction in a state where the end wall is located at the assembling position.

Optionally, the mounting groove has a first side surface and a second side surface opposite to the first side surface, a side opening is formed between the first side surface and the second side surface, and the stopper is disposed on the first side surface and configured to extend toward the second side surface.

Optionally, the pin is configured as a cylinder extending in a horizontal direction, and/or

The minimum distance between the first inclined surface and the tangent of the outer peripheral surface of the pin shaft is smaller than the minimum distance between the limiting part and the second side surface.

Optionally, the step portion includes an upright surface connecting the stopper surface and the first inclined surface, the first inclined surface is located on one side of the upright surface, and the stopper surface is at least partially located on the other side of the upright surface.

Optionally, the vertical surface is perpendicular to the limiting surface.

Optionally, the stepped portion includes a second inclined surface, one end of the upright surface is connected to the first inclined surface, the other end of the upright surface is connected to one end of the second inclined surface, and the other end of the second inclined surface is connected to the limiting surface.

Optionally, an included angle between the first inclined surface and the vertical surface is an obtuse angle, and/or an included angle between the second inclined surface and the vertical surface is an obtuse angle.

Optionally, an included angle between the first inclined surface and the vertical surface is larger than an included angle between the second inclined surface and the vertical surface.

Drawings

The following drawings of embodiments of the invention are included as part of the present invention for an understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In the drawings, there is shown in the drawings,

FIG. 1 is a perspective view of a pallet box according to a preferred embodiment of the present invention;

FIG. 2 is a perspective view of the chassis of the pallet box of FIG. 1;

FIG. 3 is an enlarged partial schematic view of the chassis of FIG. 2 at A;

FIG. 4 is a partial schematic view of the base pan of FIG. 2;

FIG. 5 is a perspective view of an end wall of the tray box of FIG. 1;

FIG. 6 is an enlarged fragmentary view of the end wall of FIG. 5 at B;

FIG. 7 is a partial schematic structural view of the end wall of FIG. 5;

FIG. 8 is a partial schematic structural view of the pallet box of FIG. 1, with only the bottom tray and end walls shown;

fig. 9 is a partial structural view at C in fig. 8.

Description of reference numerals:

100: tray box 110: chassis

111: corner posts 112: mounting groove

113: first side 114: second side surface

115: bottom surface 116: open at the top

117: side opening 118: position limiting piece

120: end wall 121: lower corner fitting

122: pin shaft 123: step portion

124: the limiting surface 125: first inclined plane

126: the upright surface 127: second inclined plane

128: end wall web 129: end wall column

130: side wall 140: top cover

151: end wall underbeam 152: chassis web

153: chassis edge beam 119: stacking piece

161: groove

L1: minimum distance between the first inclined plane and the tangent of the outer peripheral surface of the pin shaft

L2: minimum distance between the limiting part and the second side surface

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 invention 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 invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. 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 present invention provides a pallet box 100, the pallet box 100 being foldable. As shown in fig. 1, the tray case 100 mainly includes a bottom chassis 110, two end walls 120 and two side walls 130, and a top cover 140. The bottom chassis 110 is substantially rectangular in shape, two end walls 120 are respectively disposed at two ends of the bottom chassis 110, two side walls 130 are respectively disposed at two sides of the bottom chassis 110, the top cover 140 is disposed at upper sides of the end walls 120 and the side walls 130, and the bottom chassis 110, the end walls 120, the side walls 130 and the top cover 140 are substantially surrounded to form a rectangular parallelepiped structure. In the present embodiment, the two end walls 120 and the two side walls 130 are respectively mounted to the chassis 110, and are each movable between an erected position (see fig. 1) disposed in the vertical direction and a folded position that is put on the chassis 110. When the end walls 120 and the side walls 130 are in the folded position, the end walls 120 and the side walls 130 are disposed generally horizontally or at a small angle inclined from the horizontal.

As shown in fig. 2 to 4, four corners of the chassis 110 are provided with angular pillars 111, respectively. Each of the four corner pillars 111 is configured to be disposed in a vertical direction, wherein two corner pillars 111 are disposed at one end of the base chassis 110 and are disposed at opposite sides of the base chassis 110, and the other two corner pillars 111 are disposed at the other end of the base chassis 110 and are disposed at opposite sides of the base chassis 110. Specifically, the chassis 110 includes a chassis web 152 and chassis side rails 153 disposed at both ends and both sides of the chassis web 152. The chassis web 152 has a rectangular plate-like structure, and the corner posts 111 may be disposed at the ends of the chassis edge beams 153 and connected to two adjacent chassis edge beams 153.

The corner post 111 has a mounting groove 112, and the mounting groove 112 may be configured to extend in a vertical direction. The mounting groove 112 is provided inside the corner post 111, specifically, for two corner posts 111 located at the same end of the chassis 110, the mounting groove 112 of one corner post 111 is provided on a side of the corner post 111 facing the other corner post 111. The mounting slots 112 have side openings 117 at the sides, and at least one of the mounting slots 112 of two corner posts 111 at the same end of the bottom plate 110 has a top opening 116 in communication with the side openings 117. Specifically, top opening 116 is located at the top of corner post 111. In the present embodiment, one of the mounting grooves 112 of the two corner posts 111 located at the same end of the bottom chassis 110 has a top opening 116, and the other does not have a top opening. This is done to reduce the top opening and increase the strength of the corner post 111. Side opening 117 is located on the side of this corner post 111 that faces another corner post 111 that is located at the same end of chassis 110 as the corner post. In one embodiment of the invention, not shown, the mounting slots of two corner posts located at the same end of the chassis are each provided with a side opening and a top opening communicating with the side opening.

As shown in fig. 3 and 4, the mounting groove 112 has a first side surface 113 and a second side surface 114 opposite to the first side surface 113, and a bottom surface 115 disposed between the first side surface 113 and the second side surface 114. The bottom surface 115 may connect the first side surface 113 to the second side surface 114 to be integrally molded with the first side surface 113 and the second side surface 114, or the bottom surface 115 may not be directly connected to at least one of the first side surface 113 and the second side surface 114. A side opening 117 may be formed between the first side 113 and the second side 114. For a mounting slot 112 having a top opening 116, the top opening 116 may be formed between the top ends of the first and

second sides

113, 114 and the bottom surface 115. For mounting slots 112 that do not have an open top, the first side 113, second side 114, and bottom 115 are spaced from the upper surface of the corner post 111.

As shown in fig. 3, the bottom plate 110 further includes stacking members 119 disposed on top of the corner posts 111, and the stacking members 119 may cover the upper surfaces of the corner posts 111. For the mounting groove 112 having the top opening 116, a groove 161 is provided at a position of the stacking member 119 corresponding to the top opening, and the shape of the groove 161 may correspond to the shape of the top opening 116. For the mounting groove 112 (see fig. 2) having no top opening, the upper end of the mounting groove 112 is spaced apart from the upper surface of the corner post 111, and the stacking member 119 completely covers the upper surface of the corner post 111 without providing an additional groove.

As shown in fig. 5 to 7, lower corner pieces 121 are provided on both sides of the bottom of the end wall 120. Specifically, the end wall 120 includes an end wall web 128 and end wall studs 129 disposed on either side of the end wall web 128, and an end wall underbeam 151 disposed at the bottom of the end wall web 128. Lower corner fittings 121 are provided at the bottom of the end wall uprights 129 and at both ends of the end wall lower beam 151. The lower corner piece 121 is generally constructed in a vertically extending elongated structure to be able to completely shield the side opening 117 of the mounting groove 112 from adversely affecting the goods inside the tray box 100. Particularly when the end wall 120 is thin, the side opening 117 of the mounting groove 112 cannot be completely blocked due to the large bending fillet of the end wall post 129. The lower corner fitting 121 is preferably cast or forged to have sufficient strength.

As shown in fig. 6 and 7, the lower corner fitting 121 is provided with a pin shaft 122. The pin 122 may be configured as a cylindrical structure extending in a horizontal direction. The pin 122 is at least partially located in the mounting slot 112 and is movable up and down along the side opening 117. Specifically, one of the two pins 122 located on the same end wall 120 can enter one mounting slot 112 via the side opening 117 of the mounting slot 112, and the other of the two pins 122 located on the same end wall 120 can enter the mounting slot 112 via the top opening 116 of the other mounting slot 112. The pin 122 is able to rotate within the mounting slot 112 as the end wall 120 moves between the erected position and the folded position. In the present invention, as shown in fig. 3 to 7, the corner post 111 is provided with a stopper 118, the lower corner piece 121 is provided with a stepped portion 123, the stepped portion 123 includes a stopper surface 124 at the top and a first inclined surface 125 at the bottom, and the first inclined surface 125 is inclined with respect to the stopper surface 124. When the end wall 120 is in the assembled position, the retaining member 118 is located on the upper side of the retaining surface 124 to prevent the pin 122 from exiting the top opening 116. When the end wall 120 is in the assembled position, the outer edge of the limiting surface 124 and the outer side surface of the lower corner element 121 are located on the same vertical plane, so that the limiting surface 124 and the limiting element 118 have a larger overlapping amount to prevent the pin 122 from exiting from the top opening 116.

As shown in fig. 3 and 4, the limiting member 118 is disposed on the first side surface 113 and configured to extend toward the second side surface 114. In the present embodiment, the stopper 118 is configured as a cylindrical structure extending in the horizontal direction. As shown in fig. 9, a minimum distance L1 (see fig. 7) between the first inclined surface 125 and a tangent line of the outer peripheral surface of the pin 122 is smaller than a minimum distance L2 (shown in fig. 4) between the stopper 118 and the second side surface 114, so that the first inclined surface 125 and the stopper 118 can be prevented from interfering with each other when the end wall 120 is mounted. The stopper 118 may be a separate component from the corner post 111, or may be integrally formed with the corner post 111. For example, the stopper 118 may be a pin, the stopper 118 may be welded to the corner post 111, or the stopper 118 may be formed by punching a tongue from the corner post 111.

As shown in fig. 6 and 7, the first inclined surface 125 and the pin 122 are located at the bottom end of the lower corner member 121. The outer circumference of the pin 122 is tangent to both the bottom surface and the outer side surface of the lower corner element 121, so as to facilitate the installation of the end wall 120 to the chassis 110 and avoid the interference between the limiting surface 124 and the limiting element 118. The pin shaft 122 is located on the side of the lower corner fitting 121 facing the corner post 111 corresponding thereto. When the end wall 120 is in the assembled position, the stopper surface 124 is disposed in the horizontal direction, and the first inclined surface 125 is inclined at an angle D with respect to the vertical direction. When the end wall 120 is tilted towards the tray box to an angle D (see fig. 8) of the end wall 120 to the vertical, which may for example mean that the end wall web 128 is at an angle D to the vertical, the first tilted surface 125 is arranged in the vertical direction (see fig. 9). D is preferably 10 ° to 30 °, for example D may be 10 °, 15 ° or 30 °. D may be less than 10 ° or greater than 30 °, as desired.

With continued reference to fig. 6 and 7, the step portion 123 further includes an upright surface 126 connecting the stopper surface 124 with the first inclined surface 125, the first inclined surface 125 being located on one side of the upright surface 126, and the stopper surface 124 being at least partially located on the other side of the upright surface 126. Specifically, the first inclined surface 125 is located on a side of the upright surface 126 facing the inside of the tray case 100, and the stopper surface 124 is at least partially located on a side of the upright surface 126 facing the outside of the tray case 100. Preferably, the upright surface 126 is perpendicular to the stop surface 124. The upstanding surface 126 is parallel to the end wall web 128 to facilitate good contact with the lower electrode when the end wall web 128 is resistance welded to ensure that the end wall web 128 is installed in a predetermined attitude.

The step portion 123 further includes a second inclined surface 127, one end of the upright surface 126 is connected to one end of the first inclined surface 125, the other end of the upright surface 126 is connected to one end of the second inclined surface 127, and the other end of the second inclined surface 127 is connected to the stopper surface 124. The second inclined surface 127 is located on a side of the upright surface 126 facing the outside of the tray case 100. The angle between the first inclined surface 125 and the upright surface 126 is an obtuse angle, and the angle between the second inclined surface 127 and the upright surface 126 is an obtuse angle. Preferably, as shown in fig. 7, an included angle E between the first inclined surface 125 and the upright surface 126 is larger than an included angle F between the second inclined surface 127 and the upright surface 126.

The process of mounting and dismounting the end wall 120 is explained in detail below:

the end wall 120 installation process is as follows: the end wall 120 is first raised upright and the pin 122 on one side of the end wall 120 is inserted obliquely through the side opening 117 into the mounting slot 112 without a top opening. The pin 122 on the other side of the end wall 120 is then inserted into the mounting slot 112 from the top opening 116 of the other mounting slot 112, and the end wall 120 is dropped until the first inclined surface 125 contacts the end of the stopper 118, so that the stopper 118 prevents the end wall 120 from further dropping. Then, the end wall 120 is inclined toward the inside of the box so that the included angle between the end wall 120 and the vertical direction is D, the overlapping amount of the stopper 118 and the first inclined surface 125 gradually decreases until the stopper 118 does not overlap, the stopper 118 slides over the first inclined surface 125, and the end wall 120 continues to fall until the end wall lower beam 151 contacts the chassis edge beam 153 of the chassis 110. Finally, the end wall 120 is folded over the chassis web 152 of the chassis 110 and the end wall 120 is installed. Alternatively, the end wall 120 is raised upright and the pin 122 on one side of the end wall 120 is inserted obliquely through the side opening 117 into the mounting slot 112 without a top opening. The pin 122 on the other side of the end wall 120 is then inserted into the slot 112 from the top opening 116 of the other slot 112 while the end wall 120 is tilted towards the inside of the box so that the end wall 120 is at an angle D to the vertical, then the end wall 120 is dropped onto the base plate 110, and finally the end wall 120 is folded onto the base plate web 152 of the base plate 110, and the end wall 120 is completely installed.

The structure of the side wall 130 and the installation process may be known, or the structure of the side wall 130 is similar to that of the end wall 120, and the corner post 111 is correspondingly provided with an installation groove for cooperating with the side wall 130, which is not described in detail for the sake of simplicity.

The assembly and latch locking process of the end wall 120 and the side wall 130 is as follows: the two side walls 130 are moved from the folded position to the assembled position, and then the two end walls 120 are moved from the folded position to the assembled position, at this time, the limiting surface 124 is located at the lower side of the limiting member 118, and a small amount of fit clearance is left between the limiting member 118 and the limiting surface 124, and the limiting member 118 blocks the limiting surface 124 so that the end walls 120 cannot be separated from the base plate 110 upwards, so that the connection between the end walls 120 and the base plate 110 can be realized. Finally, the end wall 120 is connected to the side wall 130 by a lock, so that the side wall 130 cannot move upward relative to the chassis 110. The latch is unlocked and the two end walls 120 and the two side walls 130 can be moved from the erected position to the folded position.

The disassembly process of the end wall 120 is as follows: the two side walls 130 are detached from the bottom plate 110, then the end wall 120 is erected from the folded state and is kept inclined towards the inside of the box, so that the included angle between the end wall 120 and the vertical direction is D, the end wall 120 is lifted upwards, the pin shaft 122 on one side of the end wall 120 moves upwards along the side opening 117 of the mounting groove 112 and exits from the top opening 116 to separate from the corner upright 111, and then the pin shaft 122 on the other side of the end wall 120 exits from the side opening 117 of the other mounting groove 112 to separate from the corner upright 111, so that the detachment of the end wall 120 is completed.

In the present invention, if the end wall 120 is lifted upward in the state where the end wall 120 is in the folded position, the lower corner member 121 is blocked by the stopper 118, and the end wall 120 cannot be detached from the chassis 110, which ensures that the end wall 120 does not come off the chassis 110 in the folded position. In the present invention, it is not necessary to limit the separation of the end wall 120 from the bottom plate 110 by the shape of the top opening 116, so the shape of the top opening 116 is not limited, and it is only necessary to ensure that the pin 122 can enter and exit from the top opening 116 when the end wall 120 is inclined to the inside of the box to form an angle D with the vertical direction.

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 invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. 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.

The present invention has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the scope of the described embodiments. It will be appreciated by those skilled in the art that many variations and modifications may be made to the teachings of the invention, which fall within the scope of the invention as claimed.

Claims

1. A pallet box, comprising:

2. The tray box of claim 1, wherein the first inclined surface and the pin are located at a bottom end of the lower corner fitting, and an outer circumferential surface of the pin is tangent to both a bottom surface and an outer side surface of the lower corner fitting.

3. The pallet box of claim 1,

when the end wall is in the assembled position, the limiting surface is arranged along the horizontal direction, and/or

4. The tray box of claim 1, wherein the mounting slot has a first side and a second side opposite the first side, the first side and the second side forming a side opening therebetween, the retainer being disposed on the first side and configured to extend toward the second side.

5. The pallet box of claim 4,

the pin is configured as a cylinder extending in the horizontal direction, and/or

6. The tray bin of claim 1 wherein the step includes an upright surface connecting the stopper surface with the first inclined surface, the first inclined surface being on one side of the upright surface, the stopper surface being at least partially on the other side of the upright surface.

7. The tray case of claim 6, wherein the upright surface is perpendicular to the restraining surface.

8. The tray box according to claim 6, wherein the stepped portion includes a second inclined surface, one end of the upright surface is connected to the first inclined surface, the other end of the upright surface is connected to one end of the second inclined surface, and the other end of the second inclined surface is connected to the stopper surface.

9. The pallet box of claim 8,

the included angle between the first inclined surface and the vertical surface is an obtuse angle, and/or

And an included angle between the second inclined surface and the vertical surface is an obtuse angle.

10. The tray bin of claim 8 wherein an included angle between the first inclined surface and the upright surface is greater than an included angle between the second inclined surface and the upright surface.