CN217436670U

CN217436670U - Tray box

Info

Publication number: CN217436670U
Application number: CN202121054589.5U
Authority: CN
Inventors: 鲁亮; 苏继军; 李波
Original assignee: Dalian CIMC Special Logistics Equipment Co Ltd
Current assignee: Dalian CIMC Logistics Equipment Co Ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-09-16
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses a tray box. The tray case includes a bottom tray, two opposing side walls, and two opposing end walls. Wherein the end walls and side walls are rotatably connected to the chassis and the upper portions of the end walls are detachably connected to the upper portions of the side walls. And, a lower portion of the at least one end wall is removably hinged to the chassis and an upper portion is removably hinged to the side wall. According to the utility model discloses a tray case, its four walls can be folded, makes things convenient for empty case transportation and deposit, and the lower part of at least one end wall can outwards be opened in order to make things convenient for the discharge, and at least one end wall can be dismantled in order to make things convenient for loading and discharge.

Description

Tray box

Technical Field

The utility model relates to a tray case field especially relates to a four walls can be dismantled, folding tray case.

Background

In the field of logistics transportation, a pallet box is generally used as a container for shipping goods for transportation of goods. The pallet box generally includes a base having opposed end walls and opposed side walls joined thereto to form a container for storing and transporting goods.

There are two main types of pallet boxes for loading bulk materials such as potatoes and other agricultural products. One is that the walls of the four pallet boxes can be folded, the folded empty boxes can be stacked mutually, the empty boxes are convenient to transport, assemble and use again, but need to be turned over by means of equipment to discharge from the upper openings of the pallet boxes, the discharge environment is severely limited, and the discharge cost is high; the other type is that four tray box walls can be detached, the detached tray box walls are stacked on the chassis, the chassis is stacked mutually for empty box transportation, the empty box transportation and the reassembly and the use are inconvenient, the transportation and the use cost are high, however, the upper part of at least one tray box wall of the tray box is hinged to the adjacent tray box wall, the lower part of the tray box is locked on the chassis by a lock, the lock is opened, the lower part of the tray box wall can be outwards turned and opened, the tray box can be inclined to unload, for example, one end of the chassis of the tray box can be picked up by a forklift or the inclined unloading of the tray box can be realized by simple equipment, and the unloading is convenient.

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

SUMMERY OF THE UTILITY MODEL

A series of concepts in a simplified form are introduced in the summary section, which will be described in further detail in the detailed description section. The summary of the present application 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.

According to the demand in market, need design one kind and unload, empty case transportation and assemblage and use all convenient tray case structure, combine the advantage of two kinds of box among the background art promptly, the tray tank wall can fold and make things convenient for empty case transportation, also the lower part of at least one tray tank wall can outwards be opened and conveniently unloaded to the tray tank wall can be dismantled, makes things convenient for production equipment and shipment other goods.

The utility model provides a pallet box, this pallet box include chassis, two relative lateral walls and two relative end walls, wherein

The end wall is rotatably connected to the chassis;

the side wall is rotatably connected to the chassis;

an upper portion of the end wall is removably connected to an upper portion of the side wall; and is

A lower portion of at least one of the end walls is removably hinged to the chassis and an upper portion is removably hinged to the side wall.

According to the utility model discloses a tray case, its four walls can be folded, makes things convenient for empty case transportation and deposit, and the lower part of at least one end wall can outwards be opened in order to make things convenient for the discharge, and at least one end wall can be dismantled in order to make things convenient for loading and discharge.

Optionally, the end wall includes a lower lock rod, the lower lock rod is located at a lower portion of an outer side surface of the end wall and extends in a width direction of the tray box, and the lower lock rod is telescopically arranged; and the chassis includes a lower locking hole for receiving the lower locking bar to enable the lower portion of the end wall to be detachably hinged to the chassis.

Optionally, the end wall comprises an upper locking bar located at an outer side of the end wall at an end wall pillar and extending in a width direction of the pallet box; and the side wall comprises an upper lock hole for accommodating the upper lock rod, and the upper lock rod can freely extend into and withdraw from the upper lock hole so as to realize that the upper part of the end wall is detachably hinged to the side wall.

Optionally, the end wall comprises an end wall hooking part comprising an end wall fixing plate fixedly connected with the end wall upright and an end wall hooking plate connected with the end wall fixing plate, the end wall hooking plate being located on a side of the end wall upright facing the side wall and being parallel to and spaced apart from an outer side surface of the end wall upright, the end wall hooking plate having an end wall hooking plate hole through which the upper locking bar extends; and is provided with

The lateral wall includes lateral wall hook joint part, lateral wall hook joint part include with lateral wall stand fixed connection's lateral wall fixed plate and with the lateral wall hook joint board that lateral wall fixed plate links to each other, lateral wall hook joint board is located the orientation of lateral wall stand one side of end wall, and with the medial surface of lateral wall stand is parallel and spaced apart, lateral wall hook joint board has the confession go up the lateral wall hook joint diaphragm orifice that the locking lever extends through.

The utility model discloses a tray box, the end wall with the lateral wall is in the same place through respective hook joint part hook, just go up the locking lever and run through two hook joint parts to strengthened at tray box's width direction and length direction the end wall with the stability that the lateral wall is connected.

Optionally, the sidewall hooking plate hole is configured as the upper locking hole, or the upper locking hole is located at the sidewall pillar.

Optionally, the end wall hooking member has a hanging groove opening to the outside of the tray box, and the side wall hooking member has a hanging bar on the side wall hooking plate closer to the upper portion of the side wall than the side wall hooking plate hole; or

The side wall hooking member has a hanging groove opening toward the inside of the tray box, and the end wall hooking member has a hanging rod on the end wall hooking plate and closer to an upper portion of the end wall than the end wall hooking plate hole.

The utility model discloses a tray box, the end wall with the lateral wall realizes articulating through hanging the groove and hanging the pole to strengthened on tray box's direction of height the end wall with the stability that the lateral wall is connected.

Optionally, the end wall fixing plate is fixed to the outer top surface of the end wall upright, and the side wall fixing plate is fixed to the outer end surface of the side wall upright; alternatively, the end wall fixing plate is fixed to an inner end face of the end wall column, and the side wall fixing plate is fixed to an outer top face of the side wall.

Optionally, the suspension groove has a hooking guide surface for guiding the suspension rod into the suspension groove.

Optionally, the chassis has a stopper located on a side of the chassis facing the end wall; and the lower part of the end wall is provided with a limiting groove for accommodating the limiting block. Thereby defining a height-wise connection of said end wall to the chassis.

Optionally, the lower part of the side wall is provided with a positioning rod, and the positioning rod extends along the length direction of the tray box; and the chassis is provided with a positioning groove which extends along the width direction of the tray box and is used for accommodating the positioning rod. Thereby ensuring the stability of the connection of the side wall and the chassis in the assembled state.

The utility model discloses a tray case has simple structure, processing is easy, the flexible operation is simple swift, the transport of empty case and the simple swift advantage such as with low costs, the commonality is strong of unloading.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings embodiments of the present invention and the description thereof for the purpose of illustrating the principles of the invention. In the drawings:

fig. 1 is a perspective view of an assembled state of a pallet box according to the present invention;

fig. 2 is a front view of an assembled state of the pallet box according to the present invention;

fig. 3 is a perspective view of the chassis of the pallet box according to the present invention;

FIG. 4 is an enlarged view of portion C of FIG. 3;

fig. 5 is a perspective view of a tray box end wall lower connection structure according to the present invention;

fig. 6 is a perspective view of a tray box side wall lower connection structure according to the present invention;

FIG. 7 is an enlarged view of portion B of FIG. 2;

fig. 8 is a perspective view of an end wall upper connecting structure according to a first embodiment of the present invention;

fig. 9 is a perspective view of a side wall upper connection structure according to a first embodiment of the present invention;

FIG. 10 is an enlarged view of portion A of FIG. 2;

fig. 11 is a perspective view of the connection of the upper portion of the end wall to the upper portion of the side wall according to the first embodiment of the present invention;

FIG. 12 is a schematic view of the upper portion of the end wall being attached to the upper portion of the side wall in accordance with the first embodiment of the present invention;

FIG. 13 is a schematic view of the top end wall section being unhooked from the top side wall section in accordance with the first embodiment of the present invention;

figure 14 is a partial perspective view of the upper end wall portion hingedly connected to the upper side wall portion with the lower end wall portion outwardly open in accordance with the first embodiment of the present invention;

figure 15 is a schematic view of one end wall of a pallet box according to the present invention folded inwardly;

fig. 16 is a front view of the pallet box according to the present invention with the four walls folded;

figure 17 is a schematic view of the lower portion of the end wall of the tray box according to the present invention rotated outwardly open;

fig. 18 is a perspective view of an end wall upper connecting structure according to a second embodiment of the present invention;

fig. 19 is a perspective view of a sidewall upper connection structure according to a second embodiment of the present invention;

figure 20 is a perspective view of the connection of the upper portion of the end wall to the upper portion of the side wall according to the second embodiment of the present invention;

FIG. 21 is a schematic view of the upper portion of the end wall being attached to the upper portion of the side wall in accordance with a second embodiment of the present invention;

FIG. 22 is a schematic view of the upper portion of the end wall being un-hooked from the upper portion of the side wall in accordance with the second embodiment of the present invention; and

fig. 23 is a partial perspective view of an upper portion of an end wall hingedly connected to an upper portion of a side wall with a lower portion of the end wall opened outwardly according to a second embodiment of the present invention.

Description of reference numerals:

10: tray box

20: chassis

30: end wall

31: end wall column

40: side wall

41: side wall column

110: lower lock hole

120: first hole

130: locating slot

135: positioning guide surface

141: limiting block

166: supporting seat

210: lower lock

211: lock-down rod

213: handle bar

240: limiting groove

290: second hole

310: upper lockset

311: upper lock rod

320: end wall hook panel aperture

370: suspension groove

371: suspension rod

375: hanging guide surface

380: end wall hooking part

381: end wall fixing plate

382: end wall hook-and-hook plate

390: third hole

420: threaded hole

421: bolt

431: positioning rod

510: side wall hole

520: side wall hook joint plate hole

570: suspension groove

571: suspension rod

575: hanging guide surface

580: side wall hooking part

581: side wall fixing plate

582: side wall hook 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 invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. In the drawings, the same reference numerals are used to designate the same elements for the sake of clarity, and thus their description will be omitted.

Herein, the terms of directions such as "up", "down", "top", "bottom", "inside" and "outside" are all corresponding directions when the tray box is in normal use. Herein, a direction perpendicular to the end walls of the tray case is defined as a length direction of the tray case, and a direction perpendicular to the side walls of the tray case is defined as a width direction of the tray case.

The following detailed description is provided in connection with specific embodiments. To avoid repetition, the same structure and function are described only once in the respective embodiments.

First embodiment

Fig. 1 shows a pallet box 10 according to the invention, comprising a rectangular base plate 20 and 4 pallet walls, which are two opposite end walls 30 and two opposite side walls 40, respectively, the two side walls 40 being located outside the two end walls 30 in the width direction of the pallet box 10. The end walls 30 and the side walls 40 are movably connected to the base tray 20 in a swivel/fold connection, while at least one of the end walls 30 is detachably hinged at a lower portion to the base tray 20 and at an upper portion to the side walls 40. According to the utility model discloses a tray box, its four walls can be folded (as shown in fig. 16), makes things convenient for empty case transportation and storage, and the lower part of at least one end wall can outwards be opened in order to make things convenient for the discharge (as shown in fig. 17), and at least one end wall can be dismantled in order to make things convenient for loading and discharge.

The method of attaching the base plate 20 to the end wall 30 will be described first.

As shown in fig. 3 and 4, the chassis 20 is provided with connecting structures at four corners, including a lower locking hole 110, a stopper 141, a first hole 120, a support seat 166, a positioning groove 130, and a positioning guide surface 135. The lower locking hole 110 and the stopper 141 are located at a side toward the end wall 30. The first hole 120 is directed toward the outside of the tray case 10 in the longitudinal direction of the tray case 10. The first hole 120 is located outside the lower locking hole 110 in the width direction of the tray box 10. The support bases 166 are located on both sides of the chassis 20. The positioning groove 130 and the positioning guide surface 135 extend in the width direction of the tray case 10, and are connected, and the positioning groove 130 is located closer to the outside of the tray case 10 than the positioning guide surface 135.

As shown in fig. 5, the end wall 30 is provided at both sides of the lower portion thereof with a connection structure including a lower locker 210, a second hole 290 and a stopper groove 240. The lower locker 210 is disposed at both sides of the lower portion of the end wall 30, and the lower locker 210 includes a lower locking bar 211. The second hole 290 is a through hole penetrating the end wall pillar 31 in the pallet box width direction. The lock-down lever 211 is telescopically disposed. Specifically, by rotating handle 213 counterclockwise, lower locking bar 211 can be moved through second aperture 290 to the outside of end wall stud 31. Turning handle 213 clockwise, lower lock bar 211 retracts into second bore 290. The limiting groove 240 is a through groove in the inside-outside direction of the box on the end wall upright 31 and is located on one side of the end wall upright 31 facing the side wall 40.

The end wall 30 is removably hingedly connected to the chassis 20. Specifically, as shown in fig. 7, when the handle 213 is rotated counterclockwise, the lower lock rod 211 protrudes through the second hole 290 out of the side surface of the end wall column 31 and enters the lower lock hole 110, which is the locked state of the lower lock 210. When the lower lock 210 is in a locked state, the lower lock rod 211 is hinged to the lower lock hole 110 in a matching manner, the lower lock rod 211 can serve as a hinge shaft between the end wall 30 and the chassis 20, and the end wall 30 can be folded inside the box by rotating the lower lock rod 211 (as shown in fig. 15). The lower locking hole 110 is a long hole along the height direction of the tray case 10, and the lower locking bar 211 is freely movable in the lower locking hole 110 along the height direction of the tray case, thereby allowing the two end walls 30 to be folded without sorting.

When the handle 213 is rotated clockwise and the lower lock bar 211 is retracted into the end wall column 31, the lower lock 210 is in the open state. When the lower lock 210 is in the open state, the lower portion of the end wall 30 can be separated from the chassis 20 to allow the lower portion of the end wall 30 to be rotated out of the box to open or remove the end wall 30.

When the end wall 30 is in the assembled state, the limiting block 141 enters the limiting groove 240 to realize the connection between the end wall 30 and the chassis 20 in the height direction of the tray box, and prevent the lower part of the end wall 30 and the chassis 20 from leaving a large gap during the transportation of the tray box 10 to damage goods. The limiting groove 240 is communicated with the inside and the outside of the box, and it can be understood that when the limiting groove 240 is matched with the limiting block 141 in size, the limiting block 141 can pass through the limiting groove 240, so that when the end wall 30 is folded and assembled and the lower part of the end wall 30 is rotated and opened towards the outside of the box, the limiting block 141 does not block the end wall 30.

The method of attaching the base pan 20 to the side wall 40 will now be described.

As shown in fig. 6, the lower ends of the side walls 40 are provided with connecting structures, including threaded holes 420 and positioning rods 431 provided on the side wall columns 41, and bolts 421 (not shown in fig. 6). The screw holes 420 and the positioning rods 431 each extend in the longitudinal direction of the tray case 10.

The bottom plate 20 is provided with a support stand 166 (shown in fig. 3), and when the tray box 10 is erected, the side wall 40 is located above the support stand 166, and the support stand 166 supports the side wall 40. As shown in fig. 6 and 7, a bolt 421 is connected to the threaded hole 420 at the lower part of the sidewall pillar 40 through the first hole 120, so as to realize the hinge connection of the sidewall 40 and the bottom plate 20. The first holes 120 are long holes along the height direction of the tray case, and the bolts 421 are freely movable in the first holes 120 along the height direction of the tray case, so that the both side walls 40 can be folded without separating the order.

As shown in fig. 7, when the side wall 40 is erected, the side wall 40 is raised by rotating the bolt 421 as a rotation axis, and the positioning rod 431 slides along the positioning guide surface 135 into the positioning groove 130 to position the side wall 40 in the upright position, so that the end wall 30 is erected continuously. The cooperation of the positioning slot 130 and the positioning rod 431 can ensure that the side wall 40 is stably connected to the chassis 20 in the assembled state of the tray box 10.

When the side wall 40 is folded, the side wall 40 is lifted up to separate the positioning rod 431 from the positioning groove 130, and the side wall 40 is folded into the box. The side wall 40 can be removed by unscrewing the bolts 421.

The rotatable connection and disconnection of the four walls to and from the chassis 20 is achieved in the manner described above.

The method of connecting the upper portion of the end wall 30 to the upper portion of the side wall 40 will now be described.

As shown in fig. 8, the top of the end wall 30 is provided with connecting structures on both sides, including an upper latch 310, an end wall hooking part 380 and a third hole 390. The upper lock 310 has an upper lock lever 311. The upper lock bar 311 may be telescopically arranged, for example, in the same configuration as the lower lock 210, or in another telescopically arranged configuration. The end wall hooking part 380 is formed in an L-shape by an end wall fixing plate 381 and an end wall hooking plate 382 which are perpendicular to each other. The end wall fixing plate 381 is fixedly connected to the side (inner end face) of the end wall upright 31 facing the interior of the pallet box, and the end wall hooking plate 382 is located on the side of the end wall upright 31 facing the side wall 40, and is parallel to and spaced apart from the outer side face of the end wall upright 31. The end wall hooking plate 382 is provided with an end wall hooking plate hole 320 and a hanging groove 370. The hanging slot 370 is located above the end wall hook panel hole 320, opening toward the outside of the tray case 10, and has an upper edge configured as an inclined hook guide surface 375. The third hole 390 is provided on the end wall pillar 31 as a through hole penetrating the end wall pillar 31 in the tray case width direction. The upper latch lever 311, third aperture 390 and end wall hook plate aperture 320 are centered so that the upper latch lever 311 can move through the third aperture 390 and end wall hook plate aperture 320 to the outside of the end wall hook plate 382.

As shown in fig. 9, the top ends of the sidewalls 40 are provided with connecting structures including hanging bars 571, sidewall hooking members 580 and sidewall holes 510. The side wall hooking part 580 is formed in an L shape by two wall plate side wall fixing plates 581 and a side wall hooking plate 582 perpendicular to each other. The sidewall fixing plate 581 is fixedly attached to the top outer surface (outer top surface) of the sidewall post 41. The side wall hooking plate 582 is located on the side of the side wall stud 41 facing the end wall 30 and is parallel to and spaced from the inner side surface of the side wall stud 41. The sidewall hooking plate 582 is provided with a sidewall hooking plate hole 520. The hanging rod 571 is fixedly connected with the sidewall hooking plate 582 and the sidewall post 41. In the erected condition of the pallet box 10, the suspension bars 571 extend horizontally in a plane parallel to the end walls 30. The hanging bar 571 is located above the sidewall hooking plate hole 520. The side wall holes 510 are located below the hanging bar 571, opening on the inner side of the side wall post 41, toward the end wall 30, extending in the width direction of the pallet box 10.

When the end wall 30 is assembled with the side wall 40, as shown in fig. 10, the end wall hooking plate 382 and the side wall hooking plate 582 are positioned in the gap formed by the corresponding post and the other end wall hooking plate 382 and the corresponding post, that is, the two L-shaped hooking

members

380 and 580 are hooked with each other, and then the upper lock lever 311 passes through the third hole 390 of the end wall post 31, the side wall hooking plate hole 520 of the side wall hooking plate 582 and the end wall hooking plate hole 320 of the end wall hooking plate 382 in sequence, and finally is inserted into the side wall hole 510 of the side wall post 41.

The end wall 30 and the side wall 40 are hooked together by respective hooking

parts

380 and 580, and the locking bar 311 penetrates through the two hooking

parts

380 and 580, thereby enhancing the stability of the connection of the end wall 30 and the side wall 40 in the width direction and the length direction of the tray case 10.

When the upper lock bar 311 extends from the side of the end wall upright 31 and finally extends into the sidewall hole 510, the upper lock 310 is in a locked state, in which the upper lock bar 311 serves as a hinge shaft between the end wall 30 and the sidewall 40, and the lower portion of the end wall 30 can be rotated outward to be opened for unloading by rotating the upper lock bar 311 (as shown in fig. 17).

In the assembled state, there is a gap between the lower portion of the end wall 30 and the chassis 20 to prevent the lower portion of the end wall 30 from interfering with the chassis 20 when the lower portion of the end wall 30 is opened to the outside of the box or closed to the inside of the box. In the assembled state, the lower lock rod 211 of the lower lock 210 has a gap with the lower portion of the lower lock hole 110 of the chassis 20, so that when the lower lock rod 211 is inserted into or withdrawn from the lower lock hole 110, the lower lock rod 211 interferes with the lower portion of the lower lock hole 110, that is, the end wall 30 of the pallet box 10 in the assembled state is hung on the side wall 40.

As shown in fig. 11, when the upper lock lever 311 passes through the side wall hook plate hole 520 and the end wall hook plate hole 320, in order to prevent the upper lock lever 311 from interfering with the side wall hook plate hole 520 and the end wall hook plate hole 320 when passing through the side wall hook plate hole 520 and the end wall hook plate hole 320, there is a fit clearance between the upper lock lever 311 and the side wall hook plate hole 520 and the end wall hook plate hole 320, when the hanging bar 571 is fitted to the hanging groove 370, the upper edge of the hanging groove 370 is hung on the hanging bar 571, so that the end wall 30 is hung on the side wall 40, and the upper lock lever 311 is centered with the side wall hook plate hole 520 and the end wall hook plate hole 320.

The end wall 30 and the side wall 40 are hung by the hanging groove 370 and the hanging bar 571, thereby enhancing the stability of the connection of the end wall 30 and the side wall 40 in the height direction of the pallet box 10. Meanwhile, since the hanging groove 370 is opened toward the outside of the tray case 10, the lower portion of the end wall 30 can be opened only toward the outside of the tray case 10.

When the end wall 30 is folded, the upper lock 310 is opened, and then the lower lock rod 211 of the lower lock 210 is rotated to rotate the upper part of the end wall 30 in the box (as shown in fig. 15), so that the end wall hooking plate 382 is unhooked from the side wall hooking plate 582, the hanging groove 370 is unhooked from the hanging rod 571, and at this time, the end wall 30 falls down under the action of gravity, and the lower part of the end wall 30 is in contact with the chassis 20 to eliminate the gap, or the lower lock rod 211 of the lower lock 210 is in contact with the lower part of the lower lock hole 110 of the chassis 20 to eliminate the gap.

As shown in fig. 8, the upper edge of the hanging groove 370 is configured as a hanging guide surface 375, and the hanging guide surface 375 is inclined obliquely downward from the upper portion of the opening of the hanging groove 370. As shown in fig. 11 and 12, when the erection end wall 30 is rotated, the upper end of the hooking guide surface 375 at the opening of the hanging groove 370 first contacts the upper surface of the hanging rod 571, the end wall 30 is rotated to the vertical position, the hanging rod 571 slides along the hooking guide surface 375 to the lower end of the hooking guide surface 375, and the end wall 30 is lifted and hung on the side wall 40, i.e., the hooking guide surface 375 is hung on the hanging rod 571. At this point, the end wall hook plate 382 hooks with the side wall hook plate 582, and the side wall hook plate hole 520 and the end wall hook plate hole 320 are aligned (as shown in fig. 12) so that the upper lock lever 311 protrudes out of the end wall column without resistance. The upper lock bar 311 continues to extend out of the side of the end wall upright 31, further passes through the side wall hook plate hole 520 and the end wall hook plate hole 320, and finally extends into the side wall hole 510, so that the locking of the end wall 30 and the side wall 40 is completed, namely the detachable hinged connection of the end wall 30 and the side wall 40 is formed. At this time, a gap is formed between the lower portion of the end wall 30 and the bottom chassis 20, so that the lower portion of the end wall 30 can be conveniently rotated to be opened to the outside of the cabinet or closed to the inside of the cabinet, and a gap is also formed between the lower lock lever 211 and the lower portion of the lower lock hole 110, so that the lower lock lever 211 can be conveniently inserted into or withdrawn from the lower lock hole 110. The side wall 40 is now connected to the end wall 30 via the upper lock 310, thereby indirectly connecting the side wall 40 to the chassis 20 in the height direction of the pallet box.

It is understood that, in the first embodiment of the present invention, the upper locking rod 311 first passes through the sidewall hooking plate hole 520 and then extends into the sidewall hole 510, so that the sidewall hooking plate hole 520 is preferably used as an upper locking hole, and the detachable hinged connection between the end wall 30 and the sidewall 40 is preferably achieved by the connection between the sidewall hooking plate hole 520 and the upper locking rod 311. At this time, the sidewall holes 510 may be used as a technical locking hole, so that the ends of the upper locking bars 311 may extend out of the sidewall hooking plates 582 by a large distance, thereby preventing the upper locking bars 311 from being released from the sidewall hooking plate holes 520. In this embodiment, the diameter of the sidewall hole 510 is preferably larger than the diameter of the sidewall hook plate hole 520. In this embodiment, the sidewall holes 510 may be omitted.

In a modified embodiment of the first embodiment of the present invention, the side wall hole 510 may be used as an upper lock hole. However, this solution requires the upper lock bar 311 to have higher strength than the above-mentioned preferred solution (the side wall hook plate hole 520 is an upper lock hole). In a preferred embodiment, the side wall hook plate hole 520 as the upper lock hole is closer to the end wall 30, so that the support position of the upper lock hole to the upper lock lever 311 is closer to the end wall 30, and the third hole 390 and the end wall hook plate hole 320 can jointly support the upper lock lever 311, thereby preventing the upper lock lever 311 from being stressed in a cantilever state (the provision of the side wall hole 510 can ensure the reliable support of the end wall hook plate hole 320 to the upper lock lever 311). When the lower portion of the end wall 30 is opened, i.e., when the hanging rod 571 is disengaged from the hanging groove 370, the weight of the end wall 30 is borne by the upper locking rod 311, and the closer the upper locking hole supports the upper locking rod 311 to the end wall 30, the more beneficial the upper locking rod 311 is to be kept from bending deformation. It will be appreciated that in the preferred embodiment, when the lower portion of the end wall 30 is opened, the side wall hooking hole 520 supports the upper locking bar 311, and the side wall hooking part 580 is required to be firmly connected to the side wall post 41, and the side wall hooking part 580 and the side wall 40 are also required to have sufficient strength.

In the above technical solution of the present invention, the specific structure of the end wall hooking part 380 and the side wall hooking part 580 is designed to enhance the stability and convenience of use of the structure of the pallet box 10 in the assembled state. The end wall hooking part 380 and the side wall hooking part 580 are hooked with each other to reinforce the stability of the connection of the end wall 30 with the side wall 40. The guide surface 375 allows easy and simple suspension of the end wall 30 from the hanger bar 571. After the end wall 30 is suspended, the end wall hook connecting plate hole 320, the side wall hook connecting plate hole 520 and the side wall hole 510 are aligned, and the upper locking rod 311 with the locking end in the shape of a straight rod is directly inserted, so that the end wall 30 and the side wall 40 can be hinged and locked at the same time, and the operation is convenient and fast.

The use and installation method of the pallet box 10 is as follows.

When bulk cargo is unloaded, the lock handle 213 of the lower lock 210 is rotated (as shown in fig. 2) so that the top end of the lower lock bar 211 is withdrawn from the chassis 20 not to exceed the outer side of the end wall column 31, and the top end of the upper lock bar 311 of the upper lock 310 is placed in the side wall column 41. Therefore, under the action of the tension of the goods in the box, the end wall 30 rotates around the upper lock rod 311, the lower part of the end wall 30 rotates outwards, and the goods in the box are discharged out of the box through the opening of the lower part of the end wall 30 rotating outwards under the action of the self-weight of the goods. When the bulk cargo in the box is less and can not be discharged out of the box body by the gravity of the bulk cargo, the bulk cargo in the box can be completely discharged only by lifting the other end of the box body upwards by an angle alpha (as shown in figure 17). The lifting angle alpha is different according to the density, friction coefficient and other factors of the bulk cargo. As shown in fig. 13 and 14, the hanging slot 370 is disengaged from the hanging bar 571, and the upper locking bar 311 contacts the lower portion of the upper locking hole, hanging the end wall 30 on the side wall 40.

After the bulk cargo is unloaded, when the empty box needs to be returned, the top end of the lower lock rod 211 of the lower lock 210 is placed in the chassis 20, namely the lower lock is in a locked state, the top end of the upper lock rod 311 of the upper lock 310 is withdrawn from the side wall upright post 41 and does not exceed the outer side of the end wall upright post 31, the end wall 30 rotates/folds in the box under the action of the lower lock rod 211 as a rotating shaft, the folding is not in sequence, and after the end wall 30 is folded, the side wall 40 can be folded and the folding is not in sequence. After the tray box 10 is folded (as shown in fig. 16), the storage space can be reduced, and the logistics cost can be reduced.

Referring to fig. 4, the first hole 120 is located entirely above the lower locking hole 110, i.e., the lower edge of the first hole 120 is not lower than the upper edge of the lower locking hole 110, which makes the side wall 40 located above the end wall 30 in the folded state. It will be appreciated that, with the dimensions matched, it is sufficient to have the side wall 40 overlie the end wall 30 as long as the first aperture 120 has a portion that is raised above the lower locking aperture 110, i.e. the upper edge of the first aperture 120 is raised above the upper edge of the lower locking aperture 110.

When the tray box 10 is reset from the folded state, the two side walls 40 are assembled first, and the positioning rod 431 slides along the positioning guide surface 135 into the positioning groove 130 to fix the side walls 40; the two end walls 30 are assembled, the upper portion of the end wall 30 is lifted up, the hanging rod 571 is inserted into the hanging groove 370 along the hanging guide surface 375, and after the end wall 30 is erected, the upper lock 310 is locked, thereby completing the assembly of the pallet box 10.

When the box body is used for carrying large goods and the goods cannot be unloaded through the outward rotation of the end wall 30, the top ends of the lower locking rod 211 and the upper locking rod 311 can not exceed the outer side of the end wall upright column 31, so that the end wall 30 is ensured to be in a separated state, the end wall 30 can be disassembled, the large goods can be conveniently unloaded, and the side wall 40 can also be disassembled if necessary.

When large goods are loaded, the two side walls 40 are assembled, one end wall 30 is assembled, the lower lock 210 of the other end wall 30 is opened, and the end wall 30 is disassembled. After loading the cargo, the detached end wall 30 is inserted into the pallet box from between the side wall hooking plate 582 and the cargo, and the lower portion of the end wall 30 is moved outward so that the lower lock lever 211 is aligned with the lower lock hole 110, and the lower lock 210 is locked. The upper portion of the end wall 30 is then rotated outwardly to allow the hanger bar 571 to enter the hanging groove 370 along the hooking guide surface 375 to allow the end wall hooking plate 382 to hook and hook with the side wall hooking plate 582 simultaneously, the end wall hooking plate hole 320 to automatically align with the side wall hooking plate hole 520, and finally the lock 310 is locked.

Second embodiment

The difference in the various embodiments of the present invention is the separable hinged connection of the end wall 30 to the side wall 40.

A second embodiment of the detachable hinged connection of end wall 30 to side wall 40 is shown in fig. 18, 19 and 20. The difference from the separable hinged connection of the end wall 30 to the side wall 40 of the first embodiment is that the second embodiment is equivalent to the exchange of the end wall hooking part 380 and the side wall hooking part 580 of the first embodiment.

As shown in fig. 18, in the second embodiment, the end wall fixing plate 381 of the end wall hooking member 380 is fixedly attached to the outer top surface (outer top surface) of the end wall pillar 31, and the end wall hooking plate 382 of the end wall hooking member 380 is located on the side of the end wall pillar 31 facing the side wall 40, and is parallel to and spaced apart from the outer side surface of the end wall pillar 31. The end wall hooking plate 382 is provided with an end wall hooking plate hole 320. The hanger rods 371 connect the end wall hooking plate 382 and the end wall uprights 31. The hanger rods 371 are located above the end wall hook panel apertures 320. In the erected condition of the pallet box 10, the suspension rod 371 extends horizontally in a plane parallel to the end wall 30. The third hole 390 is provided on the end wall pillar 31 as a through hole penetrating the end wall pillar 31 in the tray case width direction. The upper latch 311, third hole 390 and end wall hook tab hole 320 are centered so that the upper latch 311 is movable through the third hole 390 and end wall hook tab hole 320 to the outside of the end wall hook tab 382.

As shown in fig. 19, the sidewall fixing plate 581 of the sidewall hooking part 580 is fixedly attached to an end outer surface (outer end surface) of the sidewall post 41. The side wall hooking panel 582 of the side wall hooking member 580 is located on the side of the side wall column 41 facing the end wall 30, and is parallel to and spaced from the inner side surface of the side wall column 41. The side wall hooking plate 582 is provided with a hanging groove 570 opened toward the inside of the tray case 10, and the side wall hooking plate hole 520 is provided on the side wall hooking plate 582 under the hanging groove 570. The lower edge of the hanging groove 570 is configured as a hanging guide surface 575 which is inclined obliquely upward from the lower portion of the opening of the hanging groove 570.

As shown in fig. 20 and 21, when the assembled end wall 30 is rotated, the lower surface of the hanging rod 371 first contacts with the lower end of the hanging guide surface 575 at the opening of the hanging groove 570, the end wall 30 is rotated to the vertical state, the hanging rod 371 slides along the hanging guide surface 575 to the upper end of the hanging guide surface 575, and the end wall 30 is lifted and hung on the side wall 40, that is, the hanging rod 371 is hung on the hanging guide surface 575. At this time, the end wall hooking plate 382 hooks and hooks with the side wall hooking plate 582 simultaneously, the side wall hooking plate hole 520 and the end wall hooking plate hole 320 are aligned (as shown in fig. 21), the side of the upper lock lever 311 extending out of the end wall upright post 31 passes through the side wall hooking plate hole 520 and the end wall hooking plate hole 320, and the end wall 30 and the side wall 40 are locked, that is, the end wall 30 and the side wall 40 are detachably hinged. At this time, a gap is formed between the lower portion of the end wall 30 and the bottom chassis 20, so that the lower portion of the end wall 30 can be conveniently rotated to be opened to the outside of the cabinet or closed to the inside of the cabinet, and a gap is also formed between the lower lock lever 211 and the lower portion of the lower lock hole 110, so that the lower lock lever 211 can be conveniently inserted into or withdrawn from the lower lock hole 110.

In the second embodiment, since the opening of the hanging groove 570 is directed toward the inside of the tray case 10, the lower portion of the end wall 30 can be opened only toward the outside of the tray case 10. As shown in fig. 22 and 23, the hanging rod 371 is disengaged from the hanging groove 570, the lower portion of the end wall 30 is opened toward the outside of the tray case 10, and the upper locking rod 311 is in contact with the lower portion of the upper locking hole to hang the end wall 30 on the side wall 40.

Third embodiment

On the basis of the first embodiment of the present invention, that is, on the basis of the hooking form that the end wall fixing plate 381 of the end wall hooking part 380 is connected to the inner end face of the end wall column 31 and the side wall fixing plate 581 of the side wall hooking part 580 is connected to the outer top face of the side wall column 41, the hanging rod 371 is connected to the end wall hooking plate 382 and the end wall column 31, the hanging groove 570 is provided on the side wall hooking plate 582, the opening of the hanging groove 570 faces the inside of the pallet box 10, and the lower edge thereof is configured to be hooked with the guide face 575. The suspension rods 371 are located above the end wall hook panel holes 320 and the suspension grooves 570 are located above the side wall hook panel holes 520.

In this manner, the end wall 30 is detachably hingedly connected to the side wall 40, and the lower portion of the end wall 30 can be opened toward the exterior of the tray case 10 when the upper latch 310 is latched and the lower latch 210 is unlatched.

Fourth embodiment

On the basis of the second embodiment of the present invention, that is, on the basis of the hook type in which the end wall fixing plate 381 of the end wall hooking part 380 is connected to the outer top surface of the end wall pillar 31 and the side wall fixing plate 581 of the side wall hooking part 580 is connected to the outer end surface of the side wall pillar 41, the hanging rod 371 is connected to the side wall hooking plate 582 and the side wall pillar 41, the hanging groove 370 is provided on the end wall hooking plate 382, the opening of the hanging groove 370 faces the outside of the pallet box 10, and the upper edge thereof is configured to hook the guide surface 375. The hanger bar 571 is located above the side wall hook panel hole 520 and the hanger groove 370 is located above the end wall hook panel hole 320.

According to the utility model discloses a tray case has enlarged the application range of current tray case, has simple structure, processing easily, the flexible operation is simple swift, empty case cost of transportation is low, the simple swift, the commonality of unloading advantage such as strong.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that many more modifications and variations can be made in accordance with the teachings of the present invention, all of which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A pallet box comprising a base, two opposed side walls and two opposed end walls, wherein

The end wall is rotatably connected to the chassis;

the side wall is rotatably connected to the chassis;

2. The pallet box of claim 1,

the end wall comprises a lower locking rod, the lower locking rod is positioned at the lower part of the outer side surface of the end wall and extends along the width direction of the tray box, and the lower locking rod is arranged in a telescopic manner; and is

The chassis includes a lower locking hole for receiving the lower locking lever to enable the lower portion of the end wall to be detachably hinged to the chassis.

3. The pallet box of claim 1,

the end wall comprises an upper locking rod, the upper locking rod is positioned on the outer side surface of the end wall at the end wall upright post and extends along the width direction of the tray box, and the upper locking rod is arranged in a telescopic manner; and is

The side wall includes an upper locking hole for receiving the upper locking bar to enable the upper portion of the end wall to be detachably hinged to the side wall.

4. The pallet box of claim 3,

the end wall comprises an end wall hooking part, the end wall hooking part comprises an end wall fixing plate fixedly connected with the end wall upright and an end wall hooking plate connected with the end wall fixing plate, the end wall hooking plate is positioned at one side of the end wall upright, facing the side wall, and is parallel to and spaced apart from the outer side surface of the end wall upright, and the end wall hooking plate is provided with an end wall hooking plate hole for the upper lock rod to extend through; and is

5. The tray case of claim 4,

the side wall hook plate hole is constructed as the upper lock hole, or the upper lock hole is positioned at the side wall upright post.

6. The pallet box of claim 5,

the end wall hooking member has a hanging groove whose opening is directed to the outside of the tray box, the side wall hooking member has a hanging rod which is located on the side wall hooking plate and which is closer to the upper portion of the side wall than the side wall hooking plate hole; or

The side wall hooking member has a hanging groove opening toward the inside of the tray box, and the end wall hooking member has a hanging bar located on the end wall hooking plate and closer to an upper portion of the end wall than the end wall hooking plate hole.

7. The tray case of claim 5 or 6,

the end wall fixing plate is fixed to the outer top surface of the end wall upright post, and the side wall fixing plate is fixed to the outer end surface of the side wall upright post; or alternatively

The end wall fixing plate is fixed to an inner end face of the end wall column, and the side wall fixing plate is fixed to an outer top face of the side wall.

8. The tray case of claim 6, wherein the hanging grooves have hooking guide surfaces for guiding the hanging rods into the hanging grooves.

9. The pallet box of claim 1,

the chassis is provided with a limiting block, and the limiting block is positioned on one side of the chassis facing the end wall; and is

The lower part of the end wall is provided with a limiting groove for accommodating the limiting block.

10. The pallet box of claim 1,

the lower part of the side wall is provided with a positioning rod which extends along the length direction of the tray box; and is

The chassis is provided with a positioning groove, and the positioning groove extends along the width direction of the tray box and is used for accommodating the positioning rod.