Pallet Box
By designing the lock hook avoiding groove and groove structure on the chassis and side walls of the tray box, the problem of increasing height after folding of the tray box is solved, achieving a more compact folding state.
Patent Information
- Application Number
- CN202111070362.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-09-13
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2041-09-13
AI Technical Summary
In the folded state, the locking hooks on the side walls interfere with the vertical walls of the bottom end beams, resulting in an increase in height after folding and unable to fold flatly.
A pallet box is designed, with the bottom end beam of the chassis having a groove and the side walls having a hook to avoid grooves, which in the folded state enters the groove to avoid interference, thereby reducing the height.
The height reduction of the tray box in the folded state is achieved, ensuring that the side walls and end walls can be folded flatly, and improving the volume utilization rate after folding.
Smart Images
Figure CN113800080B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of containers, in particular to pallet boxes. Background Art
[0002] The existing pallet box includes a chassis, an end wall and a side wall. The end wall has a locking hole. The side wall has a locking hook. When the pallet box is in an assembled state, a portion of the locking hook can enter the locking hole to lock the end wall to the side wall.
[0003] When the pallet box is in the folded state, the lock hook part protrudes from the side wall. In this way, between adjacent side walls, the lock hook of the upper side wall interferes with the side wall located below, and the gap between the two side walls is large. The height dimension of the folded pallet box is large.
[0004] To this end, the present invention provides a pallet box to at least partially solve the above problems. Summary of the invention
[0005] A series of simplified concepts are introduced in the summary of the invention, which will be further described in detail in the specific embodiments. The summary of the invention does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.
[0006] In order to at least partially solve the above technical problems, the present invention provides a pallet box, the pallet box comprising:
[0007] A chassis, wherein an end of the chassis has a bottom beam, the bottom beam has a bottom beam vertical wall perpendicular to a first horizontal direction, and a portion of the bottom beam vertical wall has a bottom beam groove along the first horizontal direction that is recessed in a direction away from the center of the chassis;
[0008] Two end walls, the bottom ends of the end walls are pivotally connected to the ends of the chassis, and the outer end surfaces of the end walls along a second horizontal direction perpendicular to the first horizontal direction have locking holes;
[0009] A first side wall, wherein the bottom end of the first side wall is pivotally connected to the side of the chassis, the first side wall has a first locking hook for cooperating with the locking hole of the end wall, and the outer side surface of the first side wall has an inwardly recessed locking hook avoidance groove, and when the pallet box is in a folded state, the first side wall is located above the chassis, and the first locking hook is located in the groove of the bottom end beam;
[0010] A second side wall, the bottom end of which is pivotally connected to the side of the chassis, the second side wall having a second locking hook for cooperating with the locking hole of the end wall, and when the pallet box is in a folded state, the second side wall is located above the first side wall, and the second locking hook is located in the locking hook avoidance groove of the first side wall.
[0011] According to the pallet box of the present invention, when the pallet box is in a folded state, the lock hook avoidance groove and the bottom end beam groove can be used to avoid the lock hook, so as to avoid interference between the lock hook of the first side wall and the vertical wall of the bottom end beam, thereby avoiding the first side wall from being unable to fold smoothly to the top of the end wall, and avoid interference between the lock hook of the second side wall and the first side wall, thereby avoiding the second side wall from being unable to fold smoothly to the top of the first side wall, thereby reducing the height of the pallet box in the folded state as much as possible.
[0012] Optionally, the pallet box includes side walls, the side walls include a first side wall and a second side wall, the side walls have lock boxes located at corners thereof, the lock hooks are connected to the lock boxes, the side walls have side columns and side wall upper beams, the side wall upper beams are located at free ends of the side walls, the side columns are located at ends of the side walls along a first horizontal direction, and the lock boxes are connected to the side columns and the side wall upper beams.
[0013] Optionally, one end of the side column away from the lock box has a lower corner piece, the side wall is connected to the chassis through the lower corner piece, and the lower corner piece of the first side wall has a lock hook avoidance groove.
[0014] Optionally, the bottom wall of the lock hook avoidance groove protrudes from the inner surface of the side box of the side wall toward the inner side of the side wall along the thickness direction of the side wall.
[0015] Optionally, when the pallet box is in an assembled state, the vertical wall of the bottom end beam is located outside the lower end of the end wall.
[0016] Optionally, along the first horizontal direction, the bottom end beam groove does not protrude from the outer contour of the chassis.
[0017] Optionally, the side pillars have side wing edges, and when the pallet box is in a folded state, the side wing edge of the first side wall is located outside the part of the chassis, and the side wing edge of the second side wall is located outside the locking hook of the first side wall, and / or
[0018] The lower corner fitting of the first side wall has a corner fitting wing which is located outside the portion of the chassis when the pallet box is in the folded state.
[0019] Optionally, the side wall is also provided with a lock handle, a lock shaft, and a handle mounting pin, the lock hook is fixedly connected to the end of the lock shaft, the lock box has a handle mounting groove and a shaft support hole, the lock shaft is inserted into the shaft support hole and passes through the handle mounting groove, the lock handle includes a handle glove and a handle portion connected to the outer circumferential surface of the handle glove, the handle glove is located in the handle mounting groove and is sleeved on the lock shaft, the handle glove is connected to the lock shaft through the handle mounting pin, so as to drive the lock hook to rotate through the lock shaft.
[0020] Optionally, the locking hook is constructed as a sheet metal part, and / or
[0021] The thickness dimension of the end wall ranges from 14 mm to 16 mm.
[0022] Optionally, the lock box also has a lock hook limiting wall, which is located above the lock hook, and the lock handle can swing between an open position and a closed position. When the lock handle is in the closed position, part of the lock hook enters the lock hole, and part of the lock handle fits against the outside of the side box of the side wall. When the lock handle is in the open position, the lock hook leaves the lock hole and abuts against the lock hook limiting wall to prevent the lock handle from moving away from the closed position.
[0023] Optionally, when the lock handle is in the open position, the angle between the extension direction of the lock handle and the side wall is less than 90°, and / or
[0024] One end of the lock handle away from the lock shaft is bent toward the inner side of the side wall.
[0025] Optionally, part of the lock box extends along the thickness direction of the side wall toward the inner side of the side wall to form a lock box wing edge, the end wall has a lock box limiting groove, there is a gap between the lock box limiting groove and the upper surface of the end wall, and when the pallet box is in an assembled state, part of the lock box wing edge is located in the lock box limiting groove.
[0026] Optionally, along the thickness direction of the side wall, part of the lock box extends toward the inner side of the side wall to form a gap blocking boss, and when the pallet box is in an assembled state, the gap blocking boss is located at the gap between the side wall and the end wall to block the gap, and the side column also has a boss avoidance portion, and when the pallet box is in a folded state, the boss avoidance portion of the first side wall is located at the gap blocking boss of the second side wall to avoid the gap blocking boss.
[0027] Optionally, the side wall also has a safety barrier rod, a return spring, and a barrier rod support, the barrier rod support has a first hole, the safety barrier rod is movably arranged in the first hole between a blocking position and a leaving position, the spring is connected to the safety barrier rod and the barrier rod support to apply a force to the safety barrier rod to move toward the blocking position, and the part of the safety barrier rod located at the blocking position is located on the outside of the lock handle to prevent the lock handle from moving toward the opening position, wherein the barrier rod support and the lock box are constructed as an integral part.
[0028] Optionally, a portion of the outer periphery of the safety lever extends outward to form an operating portion, and a minimum distance between the operating portion and the lock handle is a predetermined distance so that the lock handle and the operating portion can be operated by one hand.
[0029] Optionally, when the pallet box is in an assembled state, the end wall is located between the two side walls along the second horizontal direction, and is located inside the side wall along the first horizontal direction; when the pallet box is in a folded state, the end wall is located below the side wall.
[0030] Optionally, the handle portion is a plate member. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In order to make the advantages of the present invention more easily understood, the present invention briefly described above will be described in more detail by referring to the specific embodiments shown in the accompanying drawings. It can be understood that these drawings only depict typical embodiments of the present invention and therefore should not be considered as limiting the scope of protection thereof, and the present invention is described and explained with additional characteristics and details through the accompanying drawings.
[0032] Figure 1 is a three-dimensional schematic diagram of a pallet box in one direction according to a preferred embodiment of the present invention, wherein the pallet box is in an assembled state;
[0033] Figure 2 for Figure 1 A local enlarged schematic diagram of point A;
[0034] Figure 3 for Figure 1 A local enlarged schematic diagram of point B;
[0035] Figure 4 for Figure 1 A local enlarged schematic diagram of point C;
[0036] Figure 5 for Figure 1 A partial enlarged schematic diagram of the interior of a pallet box;
[0037] Figure 6 for Figure 1 A three-dimensional schematic diagram of the pallet box in another direction, wherein the pallet box is in an assembled state;
[0038] Figure 7 for Figure 6 A local enlarged schematic diagram of point D;
[0039] Figure 8 for Figure 1 A three-dimensional schematic diagram of a pallet box in one direction, wherein the pallet box is in a folded state;
[0040] Fig. 9 for Figure 8 A local enlarged schematic diagram of point E;
[0041] Fig.10 for Figure 8 A local enlarged schematic diagram of point F;
[0042] Fig.11 for Figure 1 A three-dimensional schematic diagram of a chassis of a pallet box in one direction;
[0043] Fig.12 for Fig.11 A partial enlarged schematic diagram of
[0044] Fig.13 for Figure 1A three-dimensional schematic diagram of a second side wall of a pallet box in one direction;
[0045] Fig.14 for Fig.13 A local enlarged schematic diagram of the H position;
[0046] Fig.15 for Fig.13 A local enlarged schematic diagram of location I;
[0047] Fig.16 for Fig.13 A partial enlarged schematic diagram of the lock box;
[0048] Fig.17 for Figure 1 A partial enlarged schematic diagram of a lock box of a front view of a side wall of a pallet box;
[0049] Fig.18 for Figure 1 A partial enlarged schematic diagram of a lock box of a rear view of a side wall of a pallet box;
[0050] Fig.19 for Figure 1 A three-dimensional schematic diagram of a lock box of a pallet box in one direction;
[0051] Fig. 20 for Figure 1 A three-dimensional schematic diagram of the lock box of the pallet box from another direction;
[0052] Fig.21 for Figure 1 A three-dimensional schematic diagram of a lock handle, a lock hook, and a lock shaft of a pallet box connected together;
[0053] Fig. 22 for Figure 1 A three-dimensional schematic diagram of a first side wall of a pallet box in one direction;
[0054] Fig.23 for Fig. 22 A local enlarged schematic diagram of J;
[0055] Fig.24 for Fig. 22 A partial enlarged schematic diagram of the lower corner piece;
[0056] Fig.25 for Figure 1 A three-dimensional schematic diagram of an end wall of a pallet box in one direction;
[0057] Fig.26 for Fig.25 A local enlarged schematic diagram of K; and
[0058] Fig. 27 for Fig.25A local enlarged schematic diagram of point L.
[0059] Description of Reference Numerals
[0060] 100: Chassis 110: Bottom beam
[0061] 111: Bottom beam vertical wall 112: Bottom beam groove
[0062] 113: Bottom beam cross arm 120: Chassis column
[0063] 150: Bottom side beam 151: Bottom side beam cross arm
[0064] 152: Bottom side beam vertical wall 153: First bottom side beam vertical wall
[0065] 154: Second bottom side beam vertical wall 200: End wall
[0066] 202: Inner surface of the end box 203: Outer surface of the end box
[0067] 210: Locking piece 211: Lock hole
[0068] 212: Lock box limit groove 213: End wall guide slope
[0069] 220: End wall lower beam 221: End wall lower beam inner wall
[0070] 222: End wall lower beam vertical wall 230: End column
[0071] 240: end wall avoidance portion 300: side wall
[0072] 301: Inner surface of side box 302: Outer surface of side box
[0073] 310: first side wall 320: second side wall
[0074] 330: Lock assembly 331: Lock box
[0075] 332: Shaft support hole 333: Handle mounting groove
[0076] 334: Lock hook installation slot 335: Lock hook
[0077] 336: Lock shaft 337: Handle
[0078] 338: Handle sleeve 339: Handle mounting pin
[0079] 340: Lock hook limit wall 341: Lock box wing edge
[0080] 342: Seam blocking boss 343: First step surface
[0081] 344: Second step surface 345: Lock box reinforcement rib
[0082] 346: Second lever guide slope 350: Side column
[0083] 351: Lock hook avoidance groove 352: Lower corner piece
[0084] 353: Side wing edge 354: Corner wing edge
[0085] 355: Boss avoidance part 360: Side wall upper beam
[0086] 370: Safety lever 380: Return spring
[0087] 390: Bar support 391: First hole
[0088] 392: Second hole 393: Mounting slot
[0089] 394: lateral opening 395: operation part
[0090] 396: First baffle guide slope 417: End wall cover plate
[0091] 421: Side wall cladding DETAILED DESCRIPTION
[0092] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the embodiments of the present invention, some technical features well known in the art are not described.
[0093] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be noted that the terms "upper", "lower" and similar expressions used herein are only for the purpose of illustration and are not intended to be limiting.
[0094] Herein, ordinal numbers such as “first” and “second” cited in the present application are merely identifications and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term “first component” itself does not imply the existence of the “second component”, and the term “second component” itself does not imply the existence of the “first component”.
[0095] In order to fully understand the embodiments of the present invention, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.
[0096] This embodiment provides a pallet box. Figures 1 to 27 The pallet box includes a chassis 100, an end wall 200, and a side wall 300. The chassis 100, the end wall 200, and the side wall 300 can form a substantially square structure for transporting goods. The end wall 200 is pivotally connected to the end of the chassis 100. The side wall 300 is pivotally connected to the side of the chassis 100. For example, it is used to transport elastic goods such as rubber. The pallet box has an assembled state and a folded state. When the pallet box is in the assembled state, the chassis 100 is perpendicular to the end wall 200. The chassis 100 is perpendicular to the side wall 300. The end wall 200 is perpendicular to the side wall 300.
[0097] like Figure 1 , Figure 6 ,as well as Figures 8 to 12 As shown, the chassis 100 is a substantially square structure. A floor can be laid on the chassis 100 for placing goods. The four corners of the chassis 100 are provided with chassis columns 120. The end wall 200 and the side wall 300 described later can be connected to the chassis columns 120.
[0098] like Fig.11 As shown, the chassis 100 further includes a bottom end beam 110 and a bottom side beam 150. The bottom side beam 150 extends along a first horizontal direction X. Along a second horizontal direction Y, one side of the chassis 100 is provided with a bottom side beam 150, and another side of the chassis 100 is provided with another bottom side beam 150. The second horizontal direction Y is perpendicular to the first horizontal direction X. The bottom end beam 110 extends along the second horizontal direction Y. Along the first horizontal direction X, one end of the chassis 100 is provided with a bottom end beam 110, and another end of the chassis 100 is provided with another bottom end beam 110.
[0099] Preferably, please refer to Fig.12 , the cross section of the bottom beam 110 (the cross section is perpendicular to the second horizontal direction Y) is configured as an L-shaped structure. The L-shaped structure includes a bottom beam vertical wall 111 and a bottom beam cross arm 113. The bottom beam vertical wall 111 and the bottom beam cross arm 113 are connected. The bottom beam cross arm 113 is perpendicular to the height direction Z of the chassis 100. The floor can be overlapped to the upper surface of the bottom beam cross arm 113. The bottom beam vertical wall 111 is perpendicular to the first horizontal direction X. The bottom beam vertical wall 111 is located above the bottom beam cross arm 113. Along the first horizontal direction X, the bottom beam vertical wall 111 is located on the side of the bottom beam cross arm 113 away from the center of the chassis 100.
[0100] When the pallet box is in the assembled state, the bottom end beam vertical wall 111 can be located on a side of the end wall lower beam inner wall 221 described later that is away from the center of the chassis 100. In this way, the bottom end beam vertical wall 111 can be used to block the end wall lower beam inner wall 221 described later, so as to block the elastic goods from bending and expanding the end wall lower beam inner wall 221 along the first horizontal direction X when the elastic goods are transported through the pallet box. In addition, since the thickness of the bottom end beam vertical wall 111 is small, the space inside the box occupied by the bottom end beam 110 can be reduced as much as possible, thereby increasing the space inside the pallet box in the assembled state as much as possible.
[0101] Preferably, please continue to refer to Fig.12 , the cross section of the bottom beam 150 (the cross section is perpendicular to the first horizontal direction X) is configured as an L-shaped structure. The L-shaped structure includes a bottom beam cross arm 151 and a bottom beam vertical wall 152. The bottom beam cross arm 151 and the bottom beam vertical wall 152 are connected. The bottom beam cross arm 151 is perpendicular to the height direction Z of the chassis 100. The floor can be overlapped to the upper surface of the bottom beam cross arm 151. The bottom beam vertical wall 152 is located above the bottom beam cross arm 151. Along the second horizontal direction Y, the bottom beam vertical wall 152 is located on the side of the bottom beam cross arm 151 away from the center of the chassis 100.
[0102] The bottom side beam vertical wall 152 can be constructed as a step structure. In this way, the bottom side beam vertical wall 152 includes a first bottom side beam vertical wall 153 and a second bottom side beam vertical wall 154. The first bottom side beam vertical wall 153 and the second bottom side beam vertical wall 154 are both perpendicular to the second horizontal direction Y. Along the height direction Z of the chassis 100, the first bottom side beam vertical wall 153 is located above the second bottom side beam vertical wall 154. Along the second horizontal direction Y, the first bottom side beam vertical wall 153 is located on the side of the second bottom side beam vertical wall 154 away from the center of the chassis 100. The first bottom side beam vertical wall 153 and the second bottom side beam vertical wall 154 are connected by a transition wall. The lower end of the second bottom side beam vertical wall 154 is connected to the bottom side beam cross arm 151. In this way, the strength of the bottom side beam 150 can be increased.
[0103] When the pallet box is in the assembled state, the surface of the second bottom side beam vertical wall 154 close to the center of the chassis 100 is the inner surface of the second bottom side beam vertical wall 154. Figure 1 The surface of the lower end of the middle side wall 300) close to the center of the chassis is the inner surface of the side wall lower beam. The inner surface of the second bottom side beam vertical wall 154 can be located on the side of the inner surface of the side wall lower beam close to the center of the chassis 100. Thus, the second bottom side beam vertical wall 154 can be used to position the end wall 200 folded on the chassis 100. The side wall lower beam can be located above the second bottom side beam vertical wall 154.
[0104] In an embodiment not shown, the inner surface of the second bottom side beam vertical wall may be substantially flush with the inner surface of the side wall lower beam.
[0105] The first bottom side beam vertical wall 153 can be used to block the side wall lower beam described later, so as to prevent the elastic goods from bending and expanding the side wall lower beam along the second horizontal direction Y when the elastic goods are transported through the pallet box. In addition, since the thickness of the first bottom side beam vertical wall 153 is small, the space inside the box occupied by the bottom side beam 150 can be reduced as much as possible, thereby increasing the space inside the pallet box in the assembled state as much as possible.
[0106] Please refer to Figures 1 to 10 ,as well as Figure 25 to Figure 27 The end wall 200 includes an end wall lower beam 220, an end column 230, and an end wall upper beam. The end column 230 is located at the end of the end wall 200 along the second horizontal direction Y. The end wall lower beam 220 and the end wall upper beam both extend along the second horizontal direction Y. The end wall lower beam 220 is located at the connection end ( Figure 1 The end wall upper beam is located at the free end of the end wall 200 opposite to its connection end ( Figure 1 In this way, the end wall lower beam 220, the end column 230, and the end wall upper beam constitute the frame of the end wall 200.
[0107] The end wall 200 has an end wall cladding 417 connected to the frame of the end wall 200. The end wall cladding 417 has an end box inner face 202 and an end box outer face 203. The end box inner face 202 is close to the inside of the pallet box. The end box outer face 203 is far from the inside of the pallet box.
[0108] like Figure 25 to Figure 27 As shown, the end wall lower beam 220 includes an end wall lower beam inner wall 221 and an end wall lower beam vertical wall 222. The end wall lower beam inner wall 221 and the end wall lower beam vertical wall 222 are connected. Along the thickness direction of the end wall 200, the inner side surface of the end wall lower beam inner wall 221 close to the inner side of the end wall 200 (the side of the end wall 200 close to the center of the chassis 100 when the pallet box is in the assembled state) is overlapped to the end box outer surface 203. The end wall lower beam vertical wall 222 is perpendicular to the outer side surface of the end wall lower beam inner wall 221 away from the inner side of the end wall 200. Along the thickness direction of the end wall 200, the end wall lower beam vertical wall 222 is located on the side of the end wall lower beam inner wall 221 away from the inner side of the end wall 200. Along the extension direction of the end column 230, the end wall lower beam vertical wall 222 is located on the side of the end wall lower beam inner wall 221 close to the center of the end wall 200.
[0109] Preferably, the end wall lower beam vertical wall 222 can be bent toward the extension direction of the end column 230 and close to the center of the end wall 200 to increase the cross-section area of the end wall lower beam 220 (the cross-section is perpendicular to the second horizontal direction Y). In this way, the strength of the end wall lower beam 220 can be increased.
[0110] Please refer to Fig.12 and Fig. 27 , when the pallet box is in the assembled state, the inner wall 221 of the end wall lower beam is located on the inner side of the bottom end beam vertical wall 111 close to the center of the chassis 100. In other words, the bottom end beam vertical wall 111 is located on the outer side of the inner wall 221 of the end wall lower beam (the side of the inner wall 221 of the end wall lower beam away from the center of the chassis 100). In this way, the end wall lower beam 220 can be prevented from expanding outward. In addition, the end wall lower beam vertical wall 222 is located above the bottom end beam vertical wall 111. In this way, when the pallet box is in the assembled state, along the first horizontal direction X, the part of the end wall 200 located above the end wall lower beam vertical wall 222 can be as far away from the center of the chassis as possible, so that the internal space of the pallet box in the assembled state can be increased as much as possible.
[0111] like Figures 1 to 4 ,as well as Figure 25 to Figure 27 As shown, the end wall 200 is further provided with a locking member 210. The locking member 210 may be a casting. The locking member 210 is located at a corner of the end wall 200. The locking member 210 is connected to the end column 230 and the end wall upper beam. Along the second horizontal direction Y, the outer end surface of the locking member 210 away from the end wall upper beam is provided with a locking hole 211. When the pallet box is in an assembled state, a portion of the locking hook 335 described later can enter the locking hole 211, thereby hooking to the locking hole 211 to lock the end wall 200 to the side wall 300.
[0112] Along the thickness direction of the end wall 200, the surface of the locking member 210 away from the inner side of the end wall 200 is recessed toward the inner side of the end wall 200 to form a lock box limiting groove 212. Along the extension direction of the end column 230, there is a gap between the lock box limiting groove 212 and the top surface of the locking member 210 (the top surface is the surface of the locking member 210 away from the connection end). When the pallet box is in the assembled state, part of the lock box wing 341 described later enters the lock box limiting groove 212. In this way, the side wall 300 can be limited to move relative to the end wall 200 along the height direction of the chassis 100.
[0113] like Fig.26As shown, the edge of the locking member 210 close to the side wall 300 is provided with an end wall guiding slope 213. The end wall guiding slope 213 is inclined to the second horizontal direction Y. For each position of the end wall guiding slope 213 along the extension direction of the end column 230, along the second horizontal direction Y, one end of the end wall guiding slope 213 close to the center of the end wall 200 is further away from the inner side of the end wall 200 than the other end thereof. Along the extension direction of the end column 230, one end of the end wall guiding slope 213 close to the center of the end wall 200 is further away from the inner side of the end wall 200 than the other end thereof. In this way, when the pallet box is converted from the folded state to the assembled state, the end wall guiding slope 213 can prevent the locking member 210 of the end wall 200 from interfering with the side wall lower beam described later.
[0114] Please refer to Figures 1 to 10 ,as well as Figures 13 to 24 The side wall 300 includes a side wall lower beam, a side column 350, and a side wall upper beam 360. The side column 350 is located at the end of the side wall 300 along the first horizontal direction X. The side wall lower beam is located at the connection end ( Figure 1 The side wall upper beam 360 is located at the free end of the side wall 300 opposite to its connecting end (i.e. Figure 1 In this way, the side wall lower beam, the side column 350, and the side wall upper beam 360 constitute the frame of the side wall 300.
[0115] The side wall 300 has a side wall covering plate 421 connected to the frame of the side wall 300. The side wall covering plate 421 has a side box inner face 301 and a side box outer face 302. The side box inner face 301 is close to the inner side of the pallet box. The side box outer face 302 is far from the inner side of the pallet box.
[0116] The side wall 300 further includes a lock assembly 330. The lock assembly 330 includes a lock box 331. The lock box 331 may be a casting. The lock box 331 may be configured as a substantially rectangular structure. The lock box 331 is located at a corner of a free end of the side wall 300. The lock box 331 is connected to the side wall upper beam 360 and the side column 350 to serve as a part of a frame constituting the side wall 300. Thus, the lock hook avoidance groove 351 described later can be made as close to the chassis column 120 as possible, so that the dimension of the first lower corner piece along the height direction of the side column 350 can be reduced as much as possible.
[0117] The lock box 331 has a handle installation groove 333, a shaft support hole 332, and a lock hook installation groove 334. The axis of the shaft support hole 332 extends along the first horizontal direction X and passes through the lock box 331. The handle installation groove 333 is formed by the outer side surface of the lock box 331 away from the inner side of the side wall 300 (the side of the side wall 300 close to the center of the chassis 100 when the pallet box is in the assembled state) being recessed toward the inner side of the side wall 300. The shaft support hole 332 and the handle installation groove 333 are connected. Along the first horizontal direction X, the end of the lock box 331 away from the side wall upper beam 360 is recessed toward the center of the side wall 300 to form the lock hook installation groove 334. The shaft support hole 332 passes through the bottom surface of the lock hook installation groove 334.
[0118] The lock assembly 330 further includes a lock hook 335 and a lock shaft 336. The lock hook 335 of the first side wall 310 is a first lock hook. The lock hook 335 of the second side wall 320 is a second lock hook. The lock hook 335 is fixedly connected to one end of the lock shaft 336. The lock hook 335 is located in the lock hook mounting groove 334 of the lock box 331. The lock shaft 336 is rotatably arranged in the shaft support hole 332 and extends through the handle mounting groove 333. Preferably, the lock hook 335 and the lock shaft 336 can be constructed as an integral part.
[0119] The lock assembly 330 also includes a lock handle. The lock handle includes a handle portion 337 and a handle grommet 338. The handle grommet 338 is located in the handle mounting groove 333. The handle grommet 338 is sleeved on the outer periphery of the lock shaft 336. The handle portion 337 is fixedly connected to the outer peripheral surface of the handle grommet 338. Along the thickness direction of the side wall 300, the handle portion 337 is located on a side of the side wall covering plate 421 away from the inner side of the side wall 300. Preferably, the handle portion 337 and the handle grommet 338 can be constructed as an integral piece.
[0120] The lock assembly 330 further includes a handle mounting pin 339. The handle mounting pin 339 is inserted into the handle sleeve 338 and connected to the lock shaft 336. In this way, the handle sleeve 338 is fixedly connected to the lock shaft 336 through the handle mounting pin 339. The handle portion 337 can drive the lock shaft 336 to rotate, thereby driving the lock hook 335 to rotate. Preferably, the handle mounting pin 339 is an elastic cylindrical pin. Thus, the handle mounting pin 339 is convenient to install.
[0121] The lock box 331 can be welded to the side wall upper beam 360 and the side column 350. Then the whole is galvanized. The lock hook 335 and the lock shaft 336 are connected together and then the whole is galvanized. The handle 337 and the handle sleeve 338 are connected together and then the whole is galvanized, and then the lock shaft 336, the lock box 331, and the lock handle are connected together through the handle mounting pin 339. It can avoid that the galvanized layer of the parts is damaged by welding after galvanizing.
[0122] It is understood that in an embodiment not shown, the handle portion may also be directly connected to the lock shaft. At this time, after the handle portion and the lock shaft are galvanized respectively, the handle portion and the lock shaft are connected by welding, and then the welding position is repaired with a repair paint.
[0123] The lock handle can be in the open position and the closed position ( Figure 2 When the lock handle is in the closed position, part of the handle portion 337 abuts against the side box outer surface 302 of the side wall 300. At this time, the hook portion of the lock hook 335 can protrude from the side box inner surface 301 of the side wall 300. If the pallet box is in the assembled state, the hook portion of the lock hook 335 enters the lock hole 211 of the end wall 200, thereby locking the end wall 200 to the side wall 300.
[0124] When the lock handle is in the open position, the hook portion of the lock hook 335 leaves the lock hole 211 of the end wall 200. At this time, the end wall 200 can rotate.
[0125] Preferably, the rotation angle of the lock handle between the open position and the closed position is less than 90°. At this time, when the lock handle is in the open position, the angle between the extension direction of the handle portion 337 and the side wall 300 is less than 90°. Therefore, under the action of the gravity of the handle portion 337, the lock handle in the open position can freely move toward the closed position.
[0126] Preferably, the end of the handle portion 337 away from the lock shaft 336 is bent toward the inner side of the side wall 300. In this way, when the side wall 300 is folded, it can be avoided that the lock handle of the lower side wall 300 (hereinafter the first side wall 310) does not return to the closed position and damages the upper side wall 300 (hereinafter the second side wall 320).
[0127] Preferably, the portion of the lock box 331 that forms the lock hook installation slot 334 is located above the lock hook 335 to form a lock hook limiting wall 340. When the lock handle is in the open position, the lock hook 335 abuts against the lock hook limiting wall 340. In this way, the lock hook limiting wall 340 can block the lock hook 335, thereby blocking the lock handle from continuing to rotate in a direction away from the closed position.
[0128] Preferably, the bottom wall of the lock hook installation groove 334 is configured as a step structure. The step structure includes a first step surface 343 and a second step surface 344. Along the first horizontal direction X, the first step surface 343 is further away from the center of the side wall 300 than the second step surface 344. The lock hook 335 is attached to the first step surface 343. In this way, there is a gap between the lock hook 335 and the second step surface 344. Thus, the rotation of the lock hook 335 is facilitated.
[0129] Preferably, along the first horizontal direction X, the portion of the lock box 331 away from the end of the side wall upper beam 360 is a wing portion. Along the thickness direction of the side wall 300, the wing portion extends and protrudes toward the inner side of the side wall 300 (the side of the side wall 300 close to the center of the chassis 100 when the pallet box is in the assembled state) to form a lock box wing 341. When the pallet box is in the assembled state, the lock box wing 341 extends into the lock box limiting groove 212 of the aforementioned locking member 210 to block the movement of the side wall 300 relative to the end wall 200 along the height direction Z of the chassis 100. In addition, the lock box wing 341 can block the locking member 210, thereby blocking the end wall 200 from rotating outward (the end wall 200 rotates in a direction away from the position folded on the chassis 100).
[0130] Preferably, along the thickness direction of the side wall 300, a portion of the lock box 331 extends toward the inner side of the side wall 300 to form a gap blocking boss 342. When the pallet box is in the assembled state, the gap blocking boss 342 is located at the gap between the side wall 300 and the end wall 200 to cover the gap. Therefore, when the pallet box is in the assembled state, the gap blocking boss 342 can reduce the gap between the side wall 300 and the end wall 200. Fig.23 As shown, the side column 350 of the first side wall 310 also has a boss avoidance portion 355. When the pallet box is in a folded state, the boss avoidance portion 355 of the first side wall 310 is located at the gap boss 342 of the second side wall 320 to avoid the gap boss 342.
[0131] Preferably, the handle installation groove 333 penetrates the lock box 331 along the thickness direction of the side wall 300. Thus, the outer diameter of the handle glove tube 338 can be increased, thereby increasing the strength of the handle glove tube 338.
[0132] Preferably, the lock box 331 is provided with a lock box reinforcement rib 345 on one side of the handle installation groove 333 close to the lower beam of the side wall to strengthen the strength of the lock box 331. The handle portion 337 can be bent at the lock box reinforcement rib 345 to avoid the lock box reinforcement rib 345.
[0133] The handle portion 337 may be a sheet metal part made of a plate. When the lock handle is in the closed position, there is a gap between the handle portion 337 and the side box outer surface 302 of the side wall 300 to facilitate operation. The handle portion 337 is also provided with a handle reinforcement rib to increase the strength of the handle portion 337. In addition, the shape of the handle portion 337 may leave space for the later-described blocking rod support 390 along the first horizontal direction X, so that the blocking rod support 390 and the handle portion 337 are spaced apart along the first horizontal direction X. In this way, the thickness of the side wall 300 may be reduced as much as possible.
[0134] Please refer to Figure 2 ,as well as Figures 17 to 20 , the side wall 300 further includes a barrier rod assembly. The barrier rod assembly includes a safety barrier rod 370, a return spring 380, and a barrier rod support 390. The barrier rod support 390 can be a casting. The barrier rod support 390 is connected to the lock box 331 and the side column 350. Preferably, the barrier rod support 390 and the lock box 331 are constructed as an integral part. It is understood that in an embodiment not shown, the barrier rod support can be an independent part.
[0135] The barrier rod support 390 has a first hole 391, a second hole 392, a mounting groove 393, and a transverse opening 394. The opening of the mounting groove 393 faces the inner side of the side wall 300. The first hole 391 and the second hole 392 are coaxial. Along the extension direction of the side column 350, the mounting groove 393 is located between the first hole 391 and the second hole 392. The first hole 391 and the second hole 392 are both connected to the mounting groove 393. The upper end of the safety barrier rod 370 is penetrated through the first hole 391. The lower end of the safety barrier rod 370 is penetrated through the second hole 392. The safety barrier rod 370 extends through the mounting groove 393. The axis of the safety barrier rod 370 extends along the extension direction of the side column 350. In this way, the safety barrier rod 370 is in the blocking position ( Fig.17 In the embodiment, the safety bar 370 is movable between an engaged position and an exit position.
[0136] The outer periphery of the substantially middle portion of the blocking rod extends radially outward and bends to form an operating portion 395. The transverse opening 394 is located at the end of the blocking rod support 390 along the first horizontal direction X. The operating portion 395 extends out of the blocking rod support 390 via the transverse opening 394. Along the extension direction of the side column 350, the size of the transverse opening 394 is larger than the diameter of the operating portion 395, so that the operating portion 395 can move along the extension direction of the side column 350, thereby moving the safety blocking rod 370 between the blocking position and the leaving position. The transverse opening 394 has a notch for installing the operating portion 395.
[0137] The return spring 380 is located in the mounting groove 393. Along the extension direction of the side column 350, the return spring 380 is located between the second hole 392 and the operating portion 395. The return spring 380 can apply a force to the safety blocking rod 370. The force can make the upper end of the safety blocking rod 370 extend out of the first hole 391 (at this time, the safety blocking rod 370 is in the blocking position).
[0138] Along the extension direction of the side column 350, the maximum distance between the lower end of the safety lever 370 and the position where it is connected to the operating portion 395 is the first distance. The first distance is smaller than the dimension of the mounting groove 393 along the extension direction of the side column 350. Along the extension direction of the side column 350, the minimum distance between the return spring 380 and the upper end of the safety lever 370 is the second distance. The sum of the compressed height of the return spring 380 (the height dimension when the return spring 380 is compressed to the shortest) and the second distance is smaller than the dimension of the mounting groove 393 along the extension direction of the side column 350. Thus, the installation of the lever assembly is facilitated.
[0139] After the bar assembly is installed to the side pillar 350 and the lock box 331, the side wall cover plate 421 is installed to cover the opening of the installation slot 393. In this way, after the side wall cover plate 421 is installed, the bar assembly cannot be easily removed.
[0140] When the lock handle is in the closed position, the upper end of the safety bar 370 extending out of the first hole 391 is located outside the handle portion 337. In this way, the upper end of the safety bar 370 can block the handle portion 337 to prevent the lock handle from leaving the closed position. Along the thickness direction of the side wall 300, the handle portion 337 is located in the handle interval between the upper end of the safety bar 370 and the lock box 331. The handle portion 337 is a sheet metal part made of a plate. In other words, the handle portion 337 is a plate member. In this way, relative to the handle portion made of round steel, the thickness dimension of the portion of the handle portion 337 located at the handle interval is smaller than the diameter of the round steel. In this way, the dimension of the handle interval along the thickness direction of the side wall 300 can be reduced, and then the thickness dimension of the side wall 300 can be reduced as much as possible.
[0141] Preferably, the upper end of the safety lever 370 has a first lever guiding slope 396. The first lever guiding slope 396 is inclined along the extension direction of the side pillar 350. Along the extension direction of the side pillar 350, the end of the first lever guiding slope 396 close to the side wall lower beam is further away from the inner side of the side wall 300 than the end thereof away from the side wall lower beam. The corresponding handle portion 337 at the upper end of the safety lever 370 also has a second lever guiding slope 346. In the process of the lock handle moving from the open position to the closed position, the second lever guiding slope 346 pushes the first lever guiding slope 396 to move the upper end of the safety lever 370 toward the second hole 392, thereby leaving the handle portion 337 (at this time, the safety lever 370 is in the leaving position). When the handle portion 337 moves to the closed position, the upper end of the safety lever 370 moves to the outside of the handle portion 337 toward the blocking position under the action of the aforementioned return spring 380, so as to block the lock handle from moving toward the open position. The second lever guide slope 346 is provided so that the handle portion 337 can more smoothly push the safety lever 370 away from the blocking position.
[0142] It can be understood that in an embodiment not shown, the axis of the safety barrier rod may also extend along the first horizontal direction X. As long as it can block the lock handle in the closed position.
[0143] When the pallet box is in the assembled state, if it is necessary to put the pallet box in the folded state, a handle portion 337 of one side wall 300 can be rotated first to rotate the lock hook 335, thereby releasing the lock between the end wall 200 and the side wall 300. Then, the end wall 200 located at the handle portion 337 is pushed toward the direction of folding on the chassis 100, so that the locking member 210 and the lock hook 335 are staggered, and then the handle portion 337 is rotated to move the lock handle to the closed position. Alternatively, the corner of the side wall 300 provided with the handle portion 337 is pulled toward the direction away from the chassis 100, so that when the lock handle provided with the handle portion 337 moves to the closed position, the lock hook 335 at the handle portion 337 leaves the end wall 200, and then the handle portion 337 is rotated to move the lock handle to the closed position. According to this method, the lock between the two end walls 200 and the two side walls 300 is gradually released. In this way, the end wall 200 and the side wall 300 can be folded to put the pallet box in the folded state. Thus, one person can work to put the pallet box in the folded state. The process of putting the pallet box in the assembled state is the opposite of the process of putting it in the folded state, which can also be completed by one person.
[0144] Preferably, the locking hook 335 is a plate. In this way, the thickness of the locking hook 335 is small. The size of the locking hole of the end wall 200 can also be small. Thus, the thickness of the end wall 200 can be reduced as much as possible, thereby reducing the height of the pallet box in the folded state and increasing the volume of the pallet box.
[0145] Preferably, if Fig.17 and Fig.18 As shown, the handle 337 is close to the operating portion 395. The minimum size between the handle 337 and the operating portion 395 is a predetermined size. The predetermined size is smaller than the palm width of an adult. In this way, the staff can operate the handle 337 and the operating portion 395 with one hand.
[0146] like Figures 1 to 10 ,as well as Figures 13 to 24As shown, the side wall 300 includes a first side wall 310 and a second side wall 320. When the pallet box is in the assembled state, if the pallet box needs to be in the folded state, any one of the two end walls 200 can be folded first, then the other of the two end walls 200 can be folded, then the first side wall 310 can be folded, and finally the second side wall 320 can be folded. In this way, when the pallet box is in the folded state, along the height direction Z of the chassis 100, the end wall 200 is located below the side wall 300, and the first side wall 310 is located below the second side wall 320.
[0147] like Figures 13 to 15 , Figure 22 to Figure 24 As shown, a lower corner piece 352 is provided below the side column 350. The lower corner piece 352 may be a casting. The lower corner piece 352 of the first side wall 310 is a first lower corner piece. The lower corner piece 352 of the second side wall 320 is a second lower corner piece. Preferably, along the extension direction of the side column 350, the size of the first lower corner piece is greater than the size of the second lower corner piece.
[0148] like Figure 22 to Figure 24 As shown, the outer side surface of the first lower corner piece away from the inner side of the side wall 300 is recessed toward the inner side of the side wall 300 to form a lock hook avoidance groove 351. When the pallet box is in the folded state, the lock handle is in the closed position, and the lock hook avoidance groove 351 is located at the lock hook 335 of the second side wall 320, and part of the lock hook 335 of the second side wall 320 can enter the lock hook avoidance groove 351. In this way, the lock hook 335 of the second side wall 320 can avoid interference with the first side wall 310, thereby preventing the second side wall 320 from being unable to be folded flatly above the first side wall 310, so that the height dimension of the pallet box in the folded state can be reduced as much as possible.
[0149] like Figure 5 As shown, along the thickness direction of the side wall 300, the bottom wall of the lock hook avoidance groove 351 extends toward the inner side of the side wall 300 and protrudes from the side box inner surface 301. In this way, the depth of the lock hook avoidance groove 351 can be increased as much as possible, thereby increasing the size of the lock hook 335 along the thickness direction of the side wall 300 as much as possible, thereby increasing the strength of the lock hook 335. Along the second horizontal direction Y, the part of the end column 230 toward the central groove of the end wall 200 forms the end wall avoidance portion 240. When the pallet box is in the assembled state, the end wall avoidance portion 240 is located at the lock hook avoidance groove 351, so as to avoid the part of the bottom wall of the lock hook avoidance groove 351 protruding from the side box inner surface 301.
[0150] It can be understood that in an embodiment not shown, when the pallet box is in an assembled state, if the gap between the end wall and the side wall is sufficient to accommodate the portion of the bottom wall of the avoidance lock hook avoidance groove that protrudes from the inner surface of the side box, the end wall avoidance portion may not be provided.
[0151] like Figure 1 , Figure 4 , Figure 6 , Figure 7 , Figures 8 to 12 As shown, along the first horizontal direction X, part of the bottom beam vertical wall 111 is recessed toward the center away from the chassis 100 to form a bottom beam groove 112. When the pallet box is in the folded state, the bottom beam groove 112 is located at the locking hook 335 of the first side wall 310, and part of the locking hook 335 of the first side wall 310 can enter the bottom beam groove 112. In this way, the locking hook 335 of the first side wall 310 and the bottom beam vertical wall 111 can be avoided from interfering, thereby preventing the first side wall 310 from being unable to be smoothly folded to the top of the end wall 200, so that the height dimension of the pallet box in the folded state can be reduced as much as possible.
[0152] Along the first horizontal direction X, the bottom end beam groove 112 does not protrude from the outer contour of the chassis 100 , thereby facilitating transportation.
[0153] Preferably, if Figure 22 to Figure 24 As shown, the outer side surface of the first lower corner piece away from the inner side of the side wall 300 is recessed toward the inner side of the side wall 300 to form a boss avoidance portion 355. The boss avoidance portion 355 can be an inclined surface inclined to the outer side 302 of the side box. The boss avoidance portion 355 can be located at the lock hook avoidance groove 351. When the pallet box is in the folded state, the boss avoidance portion 355 is located at the seam blocking boss 342 of the second side wall 320, and part of the seam blocking boss 342 of the second side wall 320 can enter the boss avoidance portion 355. In this way, the seam blocking boss 342 of the second side wall 320 can be prevented from interfering with the first side wall 310, so that the second side wall 320 cannot be folded flatly above the first side wall 310, so that the height dimension of the pallet box in the folded state can be reduced as much as possible.
[0154] Preferably, if Figure 6 ,as well as Figure 22 to Figure 24 As shown, the side pillar 350 partially forms a side wing edge 353. Along the first horizontal direction X, the side wing edge 353 is located at an end of the side pillar 350 away from the center of the side wall 300. The cross section of the side wing edge 353 (the cross section is perpendicular to the extension direction of the side pillar) is configured as an L-shaped structure. The L-shaped structure includes a side wing edge inner wall and a side wing edge upright wall. The side wing edge inner wall and the side wing edge upright wall are connected. The inner side surface of the side wing edge inner wall close to the inner side of the side wall 300 is roughly flush with the outer side 302 of the side box. The side wing edge upright wall is perpendicular to the first horizontal direction X. The side wing edge upright wall is perpendicular to the side wing edge inner wall. Along the first horizontal direction X, the side wing edge upright wall is located on a side of the side wing edge inner wall away from the center of the side wall 300. Along the thickness direction of the side wall 300, the side wing edge upright wall is located on a side of the side wing edge inner wall close to the inner side of the side wall 300, and protrudes from the inner surface 301 of the side box. Thus, the side wing edge 353 can increase the strength of the side pillar 350 .
[0155] In an embodiment not shown, the side wing edge can be constructed as a sheet metal part and then welded to the side pillar. The lock hook avoidance groove and the boss avoidance portion can also be arranged on the side wing edge.
[0156] like Fig. 9 As shown, when the pallet box is in the folded state, the side wing side upright wall of the first side wall 310 is located outside the bottom end beam vertical wall 111 of the chassis 100. When the pallet box is in the folded state, the side wing side upright wall of the second side wall 320 is located outside the locking hook 335 of the first side wall 310. Therefore, when the pallet box is in the folded state, the side wing side 353 of the first side wall 310 can be prevented from interfering with the end wall, the side wing side 353 of the first side wall 310 can be prevented from interfering with the chassis, and the side wing side 353 of the second side wall 320 can be prevented from interfering with the first side wall 310, so that the height dimension of the pallet box in the folded state can be reduced as much as possible.
[0157] Preferably, if Fig.24 As shown, the lower corner piece 352 includes a corner piece wing 354. The corner piece wing 354 has a corner piece wing vertical wall. The corner piece wing vertical wall is substantially flush with the side wing vertical wall. Along the first horizontal direction X, the corner piece wing 354 is located at an end of the lower corner piece 352 away from the center of the side wall 300. Along the thickness direction of the side wall 300, the corner piece wing vertical wall protrudes to the side of the inner surface 301 of the side box close to the inner side of the side wall 300. When the pallet box is in the folded state, the corner piece wing vertical wall of the first side wall 310 is located outside the bottom end beam vertical wall 111 of the chassis 100. Therefore, when the pallet box is in the folded state, the corner piece wing vertical wall of the first side wall 310 can avoid interference with the end wall, and avoid interference between the corner piece wing vertical wall of the first side wall 310 and the chassis, so that the height dimension of the pallet box in the folded state can be reduced as much as possible.
[0158] Preferably, the thickness of the end wall 200 ranges from 14 mm to 16 mm. Further preferably, the thickness of the end wall 200 is 15 mm. The thickness of the side wall 300 ranges from 18 mm to 21 mm. Further preferably, the thickness of the side wall 300 is 20 mm.
[0159] Preferably, when the side wall 300 and the end wall 200 are connected to the chassis 100, the side wall 300 and the end wall 200 do not protrude from the outer contour of the chassis 100. Thus, transportation is facilitated.
[0160] Preferably, when the pallet box is in the assembled state, along the second horizontal direction Y, the end wall 200 is located between the two side walls 300 . Along the first horizontal direction X, the end wall 200 does not protrude from the side wall 300 , so as to be located inside the side wall 300 .
[0161] The first side wall 310 and the second side wall 320 of this embodiment have a folding order. The first side wall 310 is folded first, and then the second side wall 320 is folded. In an embodiment not shown, the first side wall and the second side wall may not have a folding order. Any one of the first side wall and the second side wall may be folded first, and then the other of the first side wall and the second side wall may be folded. At this time, the lower corner piece of the first side wall and the lower corner piece of the second side wall are both provided with the aforementioned lock hook avoidance groove, so that the lock hook avoidance groove of the side wall folded first can avoid the lock hook of the side wall folded later. Each bottom end beam vertical wall is provided with two bottom end beam grooves, so that no matter which side wall is folded first, there is a bottom end beam groove for avoiding the lock hook of the side wall folded first.
[0162] The present invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.
[0163] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "component" and the like appearing herein may represent either a single part or a combination of multiple parts. Terms such as "installation" and "setting" and the like appearing herein may represent either a component being directly attached to another component or a component being attached to another component through an intermediate. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.
Claims
1. A pallet box, characterized in that: The pallet box comprises: A chassis, wherein an end of the chassis has a bottom beam, the bottom beam has a bottom beam vertical wall perpendicular to a first horizontal direction, and a portion of the bottom beam vertical wall has a bottom beam groove along the first horizontal direction that is recessed in a direction away from the center of the chassis; two end walls, the bottom ends of the end walls being pivotally connected to the end portions of the chassis, and the outer end surfaces of the end walls along a second horizontal direction perpendicular to the first horizontal direction having locking holes; A first side wall, wherein the bottom end of the first side wall is pivotally connected to the side of the chassis, the first side wall has a first locking hook for cooperating with the locking hole of the end wall, and the outer side surface of the first side wall has an inwardly recessed locking hook avoidance groove, and when the pallet box is in a folded state, the first side wall is located above the chassis, and the first locking hook is located in the groove of the bottom end beam; A second side wall, the bottom end of which is pivotally connected to the side of the chassis, the second side wall having a second locking hook for cooperating with the locking hole of the end wall, and when the pallet box is in the folded state, the second side wall is located above the first side wall, and the second locking hook is located in the locking hook avoidance groove of the first side wall.
2. The pallet box according to claim 1, characterized in that: The pallet box includes side walls, the side walls include the first side wall and the second side wall, the side wall has a lock box located at a corner thereof, the lock hook is connected to the lock box, the side wall has a side column and a side wall upper beam, the side wall upper beam is located at a free end of the side wall, the side column is located at an end of the side wall along the first horizontal direction, and the lock box is connected to the side column and the side wall upper beam.
3. The pallet box according to claim 2, characterized in that: One end of the side column away from the lock box is provided with a lower corner piece, the side wall is connected to the chassis through the lower corner piece, and the lower corner piece of the first side wall is provided with the lock hook avoidance groove.
4. The pallet box according to claim 1, characterized in that: The bottom wall of the lock hook avoidance groove protrudes from the inner surface of the side box of the side wall toward the inner side of the side wall along the thickness direction of the side wall.
5. The pallet box according to claim 1, characterized in that: When the pallet box is in an assembled state, the bottom end beam vertical wall is located outside the lower end of the end wall.
6. The pallet box according to claim 5, characterized in that: Along the first horizontal direction, the bottom end beam groove does not protrude from the outer contour of the chassis.
7. The pallet box according to claim 3, characterized in that: The side pillar has a side wing edge, and when the pallet box is in the folded state, the side wing edge of the first side wall is located outside the part of the chassis, and the side wing edge of the second side wall is located outside the locking hook of the first side wall, and / or The lower corner fitting of the first side wall has a corner fitting wing which is located outside of a portion of the chassis when the pallet box is in the folded position.
8. The pallet box according to claim 2, characterized in that: The side wall is also provided with a lock handle, a lock shaft, and a handle mounting pin, the lock hook is fixedly connected to the end of the lock shaft, the lock box has a handle mounting groove and a shaft support hole, the lock shaft is inserted into the shaft support hole and passes through the handle mounting groove, the lock handle includes a handle glove and a handle portion connected to the outer circumferential surface of the handle glove, the handle glove is located in the handle mounting groove and is sleeved on the lock shaft, the handle glove is connected to the lock shaft through the handle mounting pin, so as to drive the lock hook to rotate through the lock shaft.
9. The pallet box according to claim 1, characterized in that: The locking hook is constructed as a sheet metal part, and / or The thickness of the end wall ranges from 14 mm to 16 mm.
10. The pallet box according to claim 8, characterized in that: The lock box also has a lock hook limiting wall, which is located above the lock hook. The lock handle can swing between an open position and a closed position. When the lock handle is in the closed position, part of the lock hook enters the lock hole, and part of the lock handle is attached to the outside of the side box of the side wall. When the lock handle is in the open position, the lock hook leaves the lock hole and abuts against the lock hook limiting wall to prevent the lock handle from moving away from the closed position.
11. The pallet box according to claim 10, characterized in that: When the lock handle is in the open position, the angle between the extension direction of the lock handle and the side wall is less than 90°, and / or One end of the lock handle away from the lock shaft is bent toward the inner side of the side wall.
12. The pallet box according to claim 2, characterized in that: Part of the lock box extends along the thickness direction of the side wall toward the inner side of the side wall to form a lock box wing edge, and the end wall has a lock box limiting groove. There is a gap between the lock box limiting groove and the upper surface of the end wall. When the pallet box is in an assembled state, part of the lock box wing edge is located in the lock box limiting groove.
13. The pallet box according to claim 2, characterized in that: Along the thickness direction of the side wall, part of the lock box extends toward the inner side of the side wall to form a gap blocking boss. When the pallet box is in the assembled state, the gap blocking boss is located at the gap between the side wall and the end wall to block the gap. The side column also has a boss avoidance portion. When the pallet box is in the folded state, the boss avoidance portion of the first side wall is located at the gap blocking boss of the second side wall to avoid the gap blocking boss.
14. The pallet box according to claim 8, characterized in that: The side wall also has a safety barrier rod, a return spring, and a barrier rod support, the barrier rod support has a first hole, the safety barrier rod is movably inserted into the first hole between a blocking position and a leaving position, the spring is connected to the safety barrier rod and the barrier rod support to apply a force to the safety barrier rod to move toward the blocking position, the part of the safety barrier rod located at the blocking position is located on the outside of the lock handle to prevent the lock handle from moving toward the opening position, wherein the barrier rod support and the lock box are constructed as an integral piece.
15. The pallet box according to claim 14, characterized in that: A portion of the outer periphery of the safety barrier bar extends outward to form an operating portion, and a minimum distance between the operating portion and the lock handle is a predetermined distance so that the lock handle and the operating portion can be operated by one hand.
16. The pallet box according to claim 2, characterized in that: When the pallet box is in the assembled state, the end wall is located between the two side walls along the second horizontal direction, and the end wall is located on the inner side of the side wall along the first horizontal direction. When the pallet box is in the folded state, the end wall is located below the side wall.
17. The pallet box according to claim 8, characterized in that: The handle portion is a plate member.