CN220435234U - Hinge, pallet box side wall and pallet box - Google Patents

Abstract

The utility model relates to a hinge, a pallet box side wall and a pallet box, and belongs to the technical field of containers. The second hinge piece comprises a second hinge seat and a second hinge shaft, the second hinge seat is arranged on the top surface of the middle cross beam of the lower side wall, a second accommodating cavity and a second fixing hole are formed in the second hinge seat, the second hinge shaft penetrates through the second fixing hole, and the second hinge shaft is partially accommodated in the second accommodating cavity. One end of the hinge plate is rotationally connected with a first hinge shaft in the first accommodating cavity, and the other end of the hinge plate is rotationally connected with a second hinge shaft in the second accommodating cavity, so that the lower side wall of the tray box is connected with the half-folding door. The technical problem that the half folding door cannot flexibly rotate after the hot galvanizing of the tray box is solved.

Description

Hinge, pallet box side wall and pallet box

Technical Field

The utility model relates to the technical field of containers, in particular to a hinge, a pallet box side wall and a pallet box.

Background

Hot galvanizing is a common surface treatment process of a pallet box, but in the pallet box of a traditional half folding door, a hinge shaft fixed between an upright post and a side wall of the lower side wall of the pallet box through welding and a bolt shaft detachably connected to the half folding door are hinged together through a movable connecting piece, so that the half folding door is rotationally connected to the lower side wall of the pallet box. One end of the movable connecting piece is hinged between the upright post of the lower side wall and the side wall, the lower side wall and the half folding door are respectively hot galvanized, and then the half folding door is connected with the other end of the movable connecting piece through a bolt shaft. However, the hinge structure on the lower side wall is inflexible to rotate due to the hot galvanizing, and the movable connecting piece is required to be knocked after the hot galvanizing, so that the half folding door and the box body of the tray box can rotate. After hot galvanizing, the flexibility of the hinge structure of the half folding door and the tray box is low, the post-treatment process is complex, and the process cost is increased.

Disclosure of Invention

The utility model aims to solve the technical problem that a half folding door cannot flexibly rotate after hot galvanizing of a traditional tray box.

In order to solve the above technical problems, the present utility model provides a hinge for connection between a lower sidewall of a pallet box and a half folding door, the lower sidewall including a middle beam, the middle beam being disposed below the half folding door and adjacent to the half folding door, the hinge comprising: the first hinge piece comprises a first hinge seat and a first hinge shaft, wherein the first hinge seat is used for being arranged on the half-folding door, a first accommodating cavity and a first fixing hole are formed in the first hinge seat, and the axis direction of the first fixing hole is intersected with the extending direction of the first accommodating cavity; the first hinge shaft penetrates through the first fixing hole, and the first hinge shaft part is accommodated in the first accommodating cavity; the second hinge piece comprises a second hinge seat and a second hinge shaft, the second hinge seat is used for being arranged on the top surface of the middle cross beam of the lower side wall, a second accommodating cavity and a second fixing hole are formed in the second hinge seat, the second accommodating cavity is arranged opposite to the first accommodating cavity, and the axis direction of the second fixing hole is intersected with the extending direction of the second accommodating cavity; the second hinge shaft penetrates through the second fixing hole, and the second hinge shaft part is accommodated in the second accommodating cavity; and one end of the hinge plate is accommodated in the first accommodating cavity and is rotationally connected with the first hinge shaft, and the other end of the hinge plate is accommodated in the second accommodating cavity and is rotationally connected with the second hinge shaft so that the lower side wall of the tray box is connected with the half-folding door.

Optionally, the first hinge base includes a first bottom plate, a first side plate, a second side plate, and a first back plate; the first bottom plate is used for being connected with the half folding door, the first side plate and the second side plate are arranged on two sides of the first bottom plate at intervals, the first back plate is arranged between the first side plate and the second side plate, and the first bottom plate, the first side plate, the second side plate and the first back plate enclose to form the first accommodating cavity.

Optionally, the second hinge seat includes a second bottom plate, a third side plate, a fourth side plate, and a second back plate; the second bottom plate is used for being connected with the lower side wall, the third side plate and the fourth side plate are arranged on two sides of the second bottom plate at intervals, the second back plate is arranged between the third side plate and the fourth side plate, and the second bottom plate, the third side plate, the fourth side plate and the second back plate are enclosed to form a second accommodating cavity.

Optionally, the side surface of the first side plate and the second side plate, which is away from the first bottom plate, is in arc surface transition, and the side surface of the third side plate and the fourth side plate, which is away from the second bottom plate, is in arc surface transition.

Optionally, the first hinge seat further includes a guide plate, where the guide plate is disposed on a side of the second side plate facing away from the first bottom plate and extends in a direction away from the first bottom plate, and the guide plate and the first back plate are located on the same plane; the second hinge seat is provided with a notch corresponding to the guide plate, the notch is arranged on one side of the third side plate facing the second bottom plate, and the guide plate can slide along the top surface of the third side plate and can be accommodated in the notch.

Optionally, the first hinge seat further includes a fixing plate, where the fixing plate is disposed on a side of the second side plate facing away from the first bottom plate and extends in a direction away from the first bottom plate; the fixed plate is intersected with the guide plate, and the fixed plate is used for being abutted to the half-folding door.

Optionally, the top surface of the second backboard is higher than the top surface of the third side board and the top surface of the fourth side board.

Optionally, a first countersunk hole is formed in the first side plate, a first threaded hole is formed in the second side plate, and the first countersunk hole in the first side plate is communicated with the axis of the first threaded hole in the second side plate to form the first fixing hole; the third side plate is provided with a second countersunk hole, the fourth side plate is provided with a second threaded hole, and the second countersunk hole on the third side plate is communicated with the axis of the second threaded hole on the fourth side plate to form the second fixing hole.

The application also provides a pallet bin sidewall, comprising: the lower side wall comprises two side stand columns and a middle cross beam, two ends of the middle cross beam are respectively connected to the middle parts of the two side stand columns, and the middle cross beam and the upper area of the side stand columns are structured to form a door opening; the semi-folding door comprises a door main body and a door lower beam, wherein the door lower beam is fixed on the door main body; the hinge is characterized in that the first hinge seat is fixed on the door lower beam; the second hinging seat is fixed on the middle cross beam; the two ends of the hinge plate are respectively hinged with the first hinge seat and the second hinge seat, so that the half-folding door can rotate around the extending direction of the door lower beam, and the door opening is opened or closed.

Optionally, the surface of middle crossbeam with door underbeam cooperation is the inclined plane, when the door opening was closed, the inclined plane of door underbeam with the inclined plane of middle crossbeam butt each other.

The application also provides a pallet box, comprising: a chassis; at least one of the pallet box side walls described above, the pallet box side walls being disposed on the chassis.

According to the technical scheme, the beneficial effects of the utility model are as follows:

the application provides a hinge for the connection between the lower side wall of a pallet bin and a half-folding door, the hinge comprising a first hinge, a second hinge and a hinge plate. The first hinge member includes a first hinge seat and a first hinge shaft, and the second hinge member includes a second hinge seat and a second hinge shaft. The first hinging seat is arranged on the half-folding door, the second hinging seat is arranged on the top surface of the middle cross beam of the lower side wall, and the half-folding door and the lower side wall can be separated for hot galvanizing. After the galvanizing is completed, two ends of the hinge plate can be hinged in the accommodating cavities of the first hinge seat and the second hinge seat respectively through the first hinge shaft and the second hinge shaft, so that the half-folding door on the first hinge seat is rotatably mounted on the lower side wall.

By adopting the connecting structure, the first fixing holes and the second fixing holes on the first hinging seat and the second hinging seat are in a non-shielded state, and after hot galvanizing is carried out between the half-folding door and the lower side wall, the first hinging shaft and the second hinging shaft are hinged with the hinging plate, so that the problem that the hinging shaft is influenced by hot galvanizing is avoided, and the half-folding door is guaranteed to rotate more flexibly. In addition, the fixed hole on the hinge seat is fixed with the cooperation of the hinge shaft, so that the installation of the half-folding door is more convenient, and the tray box is more suitable for a hot galvanizing process.

Drawings

FIG. 1 is a schematic perspective view of a preferred embodiment of a pallet magazine in one orientation;

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

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

FIG. 4 is a perspective view of one orientation of the pallet bin sidewall of FIG. 1;

FIG. 5 is an enlarged schematic view of a portion of FIG. 4 at C;

FIG. 6 is a partial side view schematic illustration of the pallet bin sidewall of FIG. 4 with the side posts hidden;

FIG. 7 is a schematic view of the hinge of FIG. 6 after concealment;

FIG. 8 is a perspective view of one direction of the side wall of the tray box of FIG. 1 in a half-door open condition;

FIG. 9 is an enlarged schematic view of a portion of the portion of FIG. 8 at D;

FIG. 10 is a schematic perspective view of the tray box of FIG. 8 in another orientation with the side wall half-folding door open;

FIG. 11 is an enlarged partial schematic view of FIG. 10 at E;

FIG. 12 is a schematic perspective view of a first hinge seat of the hinge of the pallet bin of FIG. 1;

FIG. 13 is a schematic perspective view of a second hinge seat of the hinge of the pallet jack of FIG. 1;

FIG. 14 is a perspective view of a hinge plate of the pallet bin of FIG. 1;

fig. 15 is a schematic perspective view of another preferred embodiment of a pallet bin sidewall.

The reference numerals are explained as follows:

100. a hinge;

110. a first hinge base; 111. a first base plate; 112. a first side plate; 1121. a first counterbore; 113. a second side plate; 1131. a first threaded hole; 114. a first back plate; 115. a guide plate; 116. a fixing plate;

120. the second hinge seat; 121. a second base plate; 122. a third side plate; 1221. a second counterbore; 123. a fourth side plate; 1231. a second threaded hole; 124. a second back plate; 125. a notch;

130. a hinge plate; 140. a first hinge shaft; 150. a second hinge shaft;

200. a pallet bin sidewall;

210. a half folding door; 211. a door upper beam; 212. a door pillar; 213. a door underbeam; 2131. a door lower beam inclined plane;

220. a lower sidewall; 221. side uprights; 222. a middle cross beam; 2221. a middle cross beam inclined plane; 223. a door opening;

230. a door lock;

300. a tray box;

310. a chassis; 320. an end wall; 330. a sidewall lock.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present application, it should be understood that in the embodiments shown in the drawings, indications of directions or positional relationships (such as up, down, left, right, front, rear, etc.) are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or elements referred to must have a particular orientation, be configured and operated in a particular orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the position of these elements changes, the indication of these directions changes accordingly.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1, the present embodiment provides a pallet box 300, which includes a chassis 310 and at least one pallet box sidewall 200, wherein the pallet box sidewall 200 is disposed on the chassis 310, and forms a containing cavity with the chassis 310 for containing goods.

Specifically, the pallet bin 300 includes a chassis 310, two end walls 320, and two pallet bin side walls 200. Two end walls 320 are disposed at two ends of the chassis 310, two pallet box side walls 200 are connected at two sides of the chassis 310, and side wall locks 330 are disposed on the pallet box side walls 200 for locking the end walls 320 and the pallet box side walls 200 to form a cavity for accommodating goods. When the tray box 300 is in the assembled three-dimensional condition, the two end walls 320 are positioned on the inner sides of the two tray box side walls 200, so that the opening and closing of the half-folding door 210 on the tray box side walls 200 can be prevented from being blocked.

It should be appreciated that the number of pallet bin sidewalls 200 provided on the chassis 310 of the pallet bin 300 may vary. For example, four pallet bin sidewalls 200 may be provided and pallet bins 300 formed from the combination of four pallet bin sidewalls 200 containing half-folding doors 210 may be adapted for the unloading of different loads. Of course, only one pallet bin sidewall 200 may be provided, with a half-folding door 210.

Referring to fig. 1, 4, 8 and 10, the present embodiment provides a pallet box side wall 200, including a lower side wall 220, a half-folding door 210 and a hinge 100. The half-folding door 210 and the lower side wall 220 are connected by the hinge 100 such that the half-folding door 210 can be rotated to open or close the door opening 223 of the lower side wall 220, thereby facilitating the shipment or unloading of goods.

Referring to fig. 4, 10 and 11, the lower side wall 220 includes two side posts 221 and a middle cross member 222. The middle cross member 222 has both ends connected to the middle portions of the both side posts 221, respectively, and the middle cross member 222 and the upper region of the side post 221 are configured to form a door opening 223.

Specifically, two side posts 221 of the lower side wall 220 extend along the height direction of the pallet box 300, two ends of the middle cross beam 222 are connected to middle positions of the side posts 221 on two sides, the space between the side posts 221 is divided into two parts, and the lower areas of the side posts 221 and the middle cross beam 222 are welded with a box plate to form a lower accommodating cavity of the box body. The upper regions of the side uprights 221 and the middle cross member 222 constitute door openings 223 for receiving the half-folding doors 210.

Referring to fig. 1, 4 and 8, the half-folding door 210 includes a door main body and a door lower beam 213, and the door lower beam 213 is fixed to the door main body.

Specifically, the door body includes a door upper beam 211, a door column 212, and a door lock 230. The door upper beam 211 and the door lower beam 213 are disposed between two door columns 212 to form a frame of the half-folding door 210. The door lock 230 is provided with two groups, which are respectively arranged at the top corners of the half-folding door 210 and are fixed at the joint of the door upper beam 211 and the door upright post 212, and is used for locking the door upright post 212 of the half-folding door 210 with the side upright post 221 of the lower side wall 220 so as to lock the half-folding door 210 in the door opening 223 area.

Referring to fig. 2 and 3, the hinge 100 is disposed between the half-folding door 210 and the lower side wall 220, so that the half-folding door 210 is hinged to the lower side wall 220, and the half-folding door 210 can rotate about the extending direction of the door lower beam 213 thereof, so as to open or close the door opening 223 of the lower side wall 220.

Referring to fig. 1 to 14, the present embodiment provides a hinge 100 including a first hinge member, a second hinge member, and a hinge plate 130.

Referring to fig. 2, 3, 9 and 11, the first hinge member includes a first hinge base 110 and a first hinge shaft 140. The first hinge base 110 is configured to be disposed on the half-folding door 210, and a first accommodating cavity and a first fixing hole are disposed on the first hinge base 110. The axial direction of the first fixing hole intersects with the extending direction of the first accommodating cavity. The first hinge shaft 140 is disposed through the first fixing hole, and a portion of the first hinge shaft 140 is accommodated in the first accommodating cavity.

Further, referring to fig. 12, the first hinge base 110 includes a first bottom plate 111, a first side plate 112, a second side plate 113, and a first back plate 114. The first bottom plate 111 is used for being connected with the half-folding door 210, and the first side plate 112 and the second side plate 113 are arranged at two sides of the first bottom plate 111 at intervals. The first back plate 114 is disposed between the first side plate 112 and the second side plate 113. The first bottom plate 111, the first side plate 112, the second side plate 113 and the first back plate 114 enclose a first accommodating cavity, and the first accommodating cavity can accommodate one end of the hinge plate 130.

As shown in fig. 9, the bottom corners of the two sides of the half-folding door 210 are respectively provided with a receiving opening, and the first hinge base 110 is disposed in the receiving opening, so that the side wall of the first hinge base 110 is abutted against the end surface of the door lower beam 213, and the first bottom plate 111 of the first hinge base 110 is abutted against the end surface of the door column 212. When the first hinge base 110 is mounted on the half-folding door 210, the opening of the first fixing hole on the first hinge base 110 is not blocked by other structures, and the hinge plate 130 can be mounted after hot galvanizing.

Referring to fig. 2, 3, 9 and 11, the second hinge member includes a second hinge base 120 and a second hinge shaft 150. The second hinge base 120 is adapted to be disposed on the lower sidewall 220. The second hinge base 120 is provided with a second accommodating cavity and a second fixing hole, and the second accommodating cavity is opposite to the first accommodating cavity. The axial direction of the second fixing hole is intersected with the extending direction of the second accommodating cavity; the second hinge shaft 150 is disposed through the second fixing hole, and a portion of the second hinge shaft 150 is accommodated in the second accommodating cavity.

Further, referring to fig. 13, the second hinge base 120 includes a second bottom plate 121, a third side plate 122, a fourth side plate 123, and a second back plate 124. The second bottom plate 121 is connected to the lower sidewall 220, and the third side plate 122 and the fourth side plate 123 are disposed at two sides of the second bottom plate 121. The second back plate 124 is disposed between the third side plate 122 and the fourth side plate 123. The second bottom plate 121, the third side plate 122, the fourth side plate 123 and the second back plate 124 enclose a second accommodating cavity, and the second accommodating cavity may accommodate the other end of the hinge plate 130.

As shown in fig. 11, the second hinge base 120 is fixed to the top surface of the middle beam 222 of the lower sidewall 220 at the connection of the middle beam 222 with the side stand 221. When the half-folding door 210 is in the open state, the opening of the second fixing hole of the second hinge base 120 is not blocked by other structures, so that the second hinge base 120 and the lower sidewall 220 can be hot-galvanized and then the hinge plate 130 and the second hinge base 120 can be mounted.

Referring to fig. 2, 3, 9 and 11, the first hinge base 110 is fixed to the door lower beam 213; the second hinge base 120 is fixed to the middle cross member 222. One end of the hinge plate 130 is received in the first receiving chamber and rotatably connected to the first hinge shaft 140, and the other end of the hinge plate 130 is received in the second receiving chamber and rotatably connected to the second hinge shaft 150 such that the lower sidewall 220 of the tray case 300 is connected to the half-folding door 210. The half door 210 is rotated about the extending direction of the door lower beam 213 to open or close the half door 210.

Referring to fig. 6 and 7, the surface of the middle beam 222, which is matched with the door lower beam 213, is an inclined surface, and when the half-folding door 210 is closed, the inclined surface of the door lower beam 213 and the inclined surface of the middle beam 222 are abutted against each other.

Specifically, the bottom surface of the door sill 213 is a door sill inclined surface 2131, and the top surface of the center sill 222 is a center sill inclined surface 2221. The door sill inclined surface 2131 corresponds to and mates with the center sill inclined surface 2221. When the half folding door 210 is closed, the door lower beam inclined surface 2131 and the middle beam inclined surface 2221 are matched with each other, so that a gap between the door lower beam 213 and the middle beam 222 can be shielded, on one hand, the appearance is attractive, and on the other hand, sheet goods or flexible packages can be prevented from being exposed out of the box from the gap.

At this time, in order to mount the second hinge base 120 on the top surface of the middle cross member 222, the bottom surface of the second hinge base 120 is provided as a corresponding inclined surface.

It will be appreciated that in an embodiment not shown, the door sill inclined surface 2131 and the center sill inclined surface 2221 may not be provided, for example, the door sill 213 and the center sill 222 may each be rectangular tubes. Accordingly, the bottom surface of the second hinge base 120 is not provided with a slope, but is a plane matching the top surface of the middle cross member 222, whereby the structure of the pallet box side wall 200 can be simplified.

Referring to fig. 12 and 13, in the present embodiment, the side surfaces of the first side plate 112 and the second side plate 113 facing away from the first bottom plate 111 form an arc surface transition. The side surfaces of the third side plate 122 and the fourth side plate 123 facing away from the second bottom plate 121 form arc surface transitions.

Providing the opposite top surfaces of the first side plate 112 and the second side plate 113, the third side plate 122 and the fourth side plate 123 with arc surface transitions can prevent the first hinge seat 110 and the second hinge seat 120 from interfering with each other during the rotation of the half-folding door 210. In addition, the arc surface design can reduce the distance between the first hinge shaft 140 and the second hinge shaft 150 as much as possible, so that the structure of the hinge 100 is more compact and better stressed.

Referring to fig. 12, in the present embodiment, the first hinge base 110 further includes a guide plate 115. The guide plate 115 is disposed at a side of the second side plate 113 facing away from the first bottom plate 111 and extends in a direction away from the first bottom plate 111, and the guide plate 115 is located on the same plane as the first back plate 114.

Referring to fig. 11 and 13, the second hinge base 120 is provided with a notch 125 corresponding to the guide plate 115, the notch 125 is disposed on a side of the third side plate 122 facing the second back plate 124, and the guide plate 115 can slide along the top surface of the third side plate 122 and can be accommodated in the notch 125.

Specifically, during the closing process of the half-folding door 210, the guide plate 115 is overlapped to the circular arc top surface of the third side plate 122, and slides along the top surface of the third side plate 122 to the notch 125 on the back of the second hinge seat 120, so as to provide guidance for closing and opening the half-folding door 210.

In the present embodiment, a biaxial hinge 100 is used, and has two rotation axes of a first hinge shaft 140 and a second hinge shaft 150. Compared with the traditional single-axis hinge, the double-axis hinge 100 can be arranged between the inner plane and the outer plane of the side wall 200 of the tray box, and can enable the half-folding door 210 to rotate 180 degrees to open under the condition of not exceeding the outer plane of the side wall 200 of the tray box, so that goods can be conveniently loaded and unloaded, the folding height of the tray box 300 can not be influenced because the double-axis hinge 100 does not exceed the outer plane of the side wall 200 of the tray box, and the side wall 200 of the tray box above the tray box 300 can be prevented from being damaged when being folded.

However, biaxial hinges are prone to interference during movement. For example: the half door 210 is rotated about the first hinge shaft 140 to a maximum angle that can be rotated, and then drives the first hinge base 110 and the hinge plate 130 to rotate about the second hinge shaft 150. At this time, there is a possibility that interference may occur between the first hinge mount 110 and the second hinge mount 120 or between the door lower beam 213 and the middle cross beam 222.

In view of this, the guide plate 115 is provided to guide the half door 210 to be closed or opened in the present embodiment. When the half-folding door 210 has not rotated to the maximum angle about the first hinge shaft 140, the guide plate 115 is overlapped with the arc transition portion of the second hinge seat 120, so that the half-folding door 210 is forced to drive the first hinge seat 110 and the hinge plate 130 to start rotating about the second hinge shaft 150, and thus the first hinge seat 110 can be smoothly rotated to the upper portion of the second hinge seat 120, and mutual interference and blocking are avoided.

Moreover, the force application position when the operator closes or opens the half-folding door 210 may be eccentric, which may cause the rotation angles of the two hinges 100 to be different, that is, the rotations are not synchronous, and may cause the half-folding door 210 to be jammed. The guide plate 115 can reduce the unsynchronized phenomenon, and correct the unsynchronized phenomenon to avoid the jamming of the half-folding door 210.

When the door opening 223 is closed by the half door 210, the guide plate 115 is accommodated in the notch 125, and the notch 125 and the guide plate 115 abut against each other, so that the door lower beam 213 of the half door 210 is prevented from moving outwards under the action of an external expansion force.

Referring to fig. 12, in the present embodiment, the first hinge base 110 further includes a fixing plate 116. The fixing plate 116 is disposed at a side of the second side plate 113 facing away from the first bottom plate 111, and extends in a direction away from the first bottom plate 111. The fixing plate 116 intersects the guide plate 115, and the fixing plate 116 is used to be coupled to the door lower beam 213 of the half door 210.

In this embodiment, the shape of the fixing plate 116 matches the cross-sectional shape of the door sill 213, and the fixing plate 116 does not protrude from the door sill 213 when the fixing plate 116 is connected to the end surface of the door sill 213. So that the fixing plate 116 does not interfere with the rotation of the half door 210. The first fixing hole on the first hinge base 110 is connected to the door lower beam 213 through the fixing plate 116, so that the first fixing hole is staggered with the door lower beam 213, and shielding and interference of the door lower beam 213 to the first fixing hole are prevented, and even if the first hinge base 110 is arranged at the middle part of the half-folding door 210, the installation of the first hinge shaft 140 is not interfered by the door lower beam 213.

Referring to fig. 11 and 13, in the present embodiment, the top surface of the second back plate 124 is higher than the top surface of the third side plate 122 and the top surface of the fourth side plate 123.

When the half door 210 closes the door opening 223, the side wall of the hinge plate 130 abuts on the inner side surface of the second back plate 124. The second back plate 124 prevents the hinge plate 130 from continuing to rotate into the box, thereby ensuring that the half-folding door 210 does not protrude into the tray box, i.e., does not protrude out of the inner side of the lower side wall 220, so that the half-folding door 210 and the lower side wall 220 are in the same vertical plane. Therefore, the top surface of the second back plate 124 should be as higher than the top surfaces of the third side plate 122 and the fourth side plate 123 as the structure allows, so as to improve the blocking effect of the second back plate 124 on the hinge plate 130 and prevent the half-folding door 210 from rotating excessively. When the door opening 223 is closed by the half door 210, since the gap 125 and the guide plate 115 abut against each other to block the door lower beam 213 from moving outward, and the hinge plate 130 and the second back plate 124 abut against each other to block the door lower beam 213 from moving inward, the lower end of the half door 210 is fixed, and the upper end of the half door 210 is fixed to the side column 221 via the door lock 230, and thus the half door 210 is fixed.

Referring to fig. 14, hinge plates 130 are provided with hinge holes at both ends. After the two ends of the hinge plate 130 are received in the first receiving chamber and the second receiving chamber, the hinge holes of the hinge plate 130 are respectively opposite to the axes of the first fixing hole and the second fixing hole. The first hinge shaft 140 and the second hinge shaft 150 are respectively penetrated in the first fixing hole and the second fixing hole and pass through the hinge holes of the hinge plate 130 to hinge the hinge plate 130 to the first hinge bracket 110 and the second hinge bracket 120.

Referring to fig. 12, in some embodiments, a first countersunk hole 1121 is formed in the first side plate 112, and a first threaded hole 1131 is formed in the second side plate 113. The first countersunk hole 1121 on the first side plate 112 is communicated with the axis of the first threaded hole 1131 on the second side plate 113 to form a first fixing hole.

The first hinge shaft 140 is a bolt shaft, when the first hinge shaft 140 penetrates from the first countersunk hole 1121, passes through the hinge hole of the hinge plate 130, and then extends into the first threaded hole 1131, and screws the threads on the first hinge shaft 140 with the threads in the first threaded hole 1131 in a matching manner, so that the hinge plate 130 is hinged with the first hinge base 110. At this time, the bolt head of the first hinge shaft 140 is completely positioned in the first countersunk hole 1121, so that interference between the first hinge shaft 140 and the inner side surface of the side pillar 221 can be prevented when the half door 210 is closed.

Referring to fig. 13, a second countersunk hole 1221 is formed in the third side plate 122, a second threaded hole 1231 is formed in the fourth side plate 123, and the second countersunk hole 1221 in the third side plate 122 is connected to the axis of the second threaded hole 1231 in the fourth side plate 123 to form a second fixing hole.

Wherein the second counter bore 1221 is oriented opposite to the first counter bore 1121. The second hinge shaft 150 is also a bolt shaft, which sequentially passes through the second countersunk hole 1221 and the hinge hole of the hinge plate 130 and then is screwed with the second threaded hole 1231, so that the hinge plate 130 is hinged with the second hinge base 120. At this time, the bolt head of the second hinge shaft 150 is completely accommodated in the second countersunk hole 1221, so as to avoid interference between the second hinge shaft 150 and the inner side surface of the fixing plate 116 when the half-folding door 210 is closed.

It will be appreciated that in an embodiment not shown, a plurality of hinges 100 may be provided between the door 210 and the lower side wall 220 to increase the strength of the connection between the door 210 and the lower side wall 220, preventing the pallet box 300 from being deformed in use, allowing it to be loaded with some cargo having an external expansion force.

Two fixing plates 116 are provided at both sides of the first hinge housing 110 of the hinge 100 not located at both ends of the door sill 213. At this time, the middle position of the door lower beam 213 needs to be disconnected to provide an installation gap for the first hinge bracket 110. The two fixing plates 116 on both sides of the first hinge base 110 are respectively fixed to the end surfaces of the opened door lower beam 213, so that the first hinge base 110 is fixed to the door lower beam 213. And the first fixing hole on the first hinge base 110 is not at the same height as the door lower beam 213, the first fixing hole is not blocked by the door lower beam 213, and the first hinge shaft 140 can still be installed after the half-folding door 210 is hot galvanized. And the second hinge seat is located at the middle part of the middle beam 222, so that the second fixing hole is not blocked, and the hinge between the lower side wall 220 and the hinge plate 130 after hot galvanizing can be realized.

Referring to fig. 15, a schematic perspective view of a side wall of another tray box is provided. The hinge 100, to which the half door 210 is connected to the lower side wall 220, has the same structure, and is different from the tray case side wall 200 described above in that: the door opening 223 in the lower sidewall 220 is smaller in area and the corresponding half-folding door 210 is smaller in area. At this time, the door lock 230 for fixing the half-folding door 210 has a simpler structure, and the maintenance of the door lock 230 can be facilitated. And the handles of the side wall locks 330 are larger to facilitate attachment and detachment of the pallet bin side walls 200 to the end walls 320.

The present embodiment provides a mounting manner of the half-folding door 210, which is as follows:

s1, fixing the first hinge base 110 to two ends of a door lower beam 213 of the half-folding door 210 to perform hot galvanizing.

S2, fixing the second hinge base 120 to the middle beam 222 of the lower side wall 220 for hot galvanizing.

S3, inserting the first connecting end of the galvanized hinge plate 130 into the first accommodating cavity of the galvanized first hinge seat 110. Then, the first hinge shaft 140 is inserted from the first countersunk hole 1121 of the first fixing hole, passes through the hinge plate 130, and is fixedly coupled with the first screw hole 1131, so that the hinge plate 130 is hinged with the first hinge seat 110 of the half door 210.

S4, the half-folding door 210 is in an open position, then the second connecting end of the hinge plate 130 is inserted into the second accommodating cavity of the second hinge seat 120 after hot galvanizing, the second hinge shaft 150 is inserted from the second countersunk head hole 1221 of the second fixing hole, penetrates through the hinge plate 130 and then is connected and fixed with the second threaded hole 1231, and the hinge plate 130 is hinged with the second hinge seat 120 on the lower side wall 220, so that the half-folding door 210 is installed.

Of course, the order of S3 and S4 may be exchanged, i.e. the hinge plate 130 is first hinged to the second hinge seat 120 on the middle beam 222 and then hinged to the first hinge seat 110 on the door lower beam 213.

Because the first fixing hole on the first hinge seat 110 and the second fixing hole on the second hinge seat 120 are not blocked by other structures under the condition that the half-folding door 210 is at the open position, after the first hinge seat 110 on the half-folding door 210 and the second hinge seat 120 on the lower side wall 220 can be hot galvanized, the hinge plate 130 is installed, and the influence of hot galvanizing is avoided, so that the hinge 100 is more flexible, and the half-folding door 210 is also more flexible to open and close. The installation efficiency of the half-folding door 210 is greatly improved, the operation and use costs are reduced, and the tray box 300 is more suitable for the hot galvanizing process.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (11)

1. A hinge for connection between a lower side wall of a pallet bin and a half-folding door, the lower side wall comprising a middle cross beam disposed below the half-folding door and adjacent the half-folding door, the hinge comprising:

the first hinge piece comprises a first hinge seat and a first hinge shaft, wherein the first hinge seat is used for being arranged on the half-folding door, a first accommodating cavity and a first fixing hole are formed in the first hinge seat, and the axis direction of the first fixing hole is intersected with the extending direction of the first accommodating cavity; the first hinge shaft penetrates through the first fixing hole, and the first hinge shaft part is accommodated in the first accommodating cavity;

the second hinge piece comprises a second hinge seat and a second hinge shaft, the second hinge seat is used for being arranged on the top surface of the middle cross beam of the lower side wall, a second accommodating cavity and a second fixing hole are formed in the second hinge seat, the second accommodating cavity is arranged opposite to the first accommodating cavity, and the axis direction of the second fixing hole is intersected with the extending direction of the second accommodating cavity; the second hinge shaft penetrates through the second fixing hole, and the second hinge shaft part is accommodated in the second accommodating cavity;

and one end of the hinge plate is accommodated in the first accommodating cavity and is rotationally connected with the first hinge shaft, and the other end of the hinge plate is accommodated in the second accommodating cavity and is rotationally connected with the second hinge shaft so that the lower side wall of the tray box is connected with the half-folding door.

2. The hinge of claim 1, wherein the first hinge base comprises a first bottom plate, a first side plate, a second side plate, and a first back plate; the first bottom plate is used for being connected with the half folding door, the first side plate and the second side plate are arranged on two sides of the first bottom plate at intervals, the first back plate is arranged between the first side plate and the second side plate, and the first bottom plate, the first side plate, the second side plate and the first back plate enclose to form the first accommodating cavity.

3. The hinge of claim 2, wherein the second hinge base comprises a second bottom plate, a third side plate, a fourth side plate, and a second back plate; the second bottom plate is used for being connected with the lower side wall, the third side plate and the fourth side plate are arranged on two sides of the second bottom plate at intervals, the second back plate is arranged between the third side plate and the fourth side plate, and the second bottom plate, the third side plate, the fourth side plate and the second back plate are enclosed to form a second accommodating cavity.

4. A hinge according to claim 3, wherein the sides of the first and second side panels facing away from the first base panel are in a transition of arcuate surfaces, and the sides of the third and fourth side panels facing away from the second base panel are in a transition of arcuate surfaces.

5. A hinge according to claim 3, wherein the first hinge base further comprises a guide plate provided on a side of the second side plate facing away from the first bottom plate and extending in a direction away from the first bottom plate, the guide plate being in the same plane as the first back plate;

the second hinge seat is provided with a notch corresponding to the guide plate, the notch is arranged on one side of the third side plate facing the second backboard, and the guide plate can slide along the top surface of the third side plate and can be accommodated in the notch.

6. The hinge according to claim 5, wherein the first hinge base further includes a fixing plate provided at a side of the second side plate facing away from the first bottom plate and extending in a direction away from the first bottom plate; the fixed plate is intersected with the guide plate, and the fixed plate is used for being abutted to the half-folding door.

7. A hinge according to claim 3, wherein the top surface of the second back plate is higher than the top surface of the third side plate and the top surface of the fourth side plate.

8. A hinge according to claim 3, wherein the first side plate is provided with a first countersunk hole, the second side plate is provided with a first threaded hole, and the first countersunk hole in the first side plate is communicated with the axis of the first threaded hole in the second side plate to form the first fixing hole;

the third side plate is provided with a second countersunk hole, the fourth side plate is provided with a second threaded hole, and the second countersunk hole on the third side plate is communicated with the axis of the second threaded hole on the fourth side plate to form the second fixing hole.

9. A pallet bin sidewall comprising:

the lower side wall comprises two side stand columns and a middle cross beam, two ends of the middle cross beam are respectively connected to the middle parts of the two side stand columns, and the middle cross beam and the upper area of the side stand columns are structured to form a door opening;

the semi-folding door comprises a door main body and a door lower beam, wherein the door lower beam is fixed on the door main body;

the hinge according to any one of claims 1-8, said first hinge mount being secured to said door sill; the second hinging seat is fixed on the middle cross beam; the two ends of the hinge plate are respectively hinged with the first hinge seat and the second hinge seat, so that the half-folding door can rotate around the extending direction of the door lower beam, and the door opening is opened or closed.

10. The pallet bin sidewall of claim 9, wherein the face of the center sill that mates with the door sill is a ramp, and wherein the ramp of the door sill abuts the ramp of the center sill when the door opening is closed.

11. A pallet magazine, comprising:

a chassis;

the pallet bin sidewall of at least one of claims 9 or 10, disposed on the chassis.