Pallet box

Abstract

The present invention discloses a pallet box. The pallet box is used to accommodate a liquid material transport bag. The pallet box includes a chassis, a discharge mounting seat, a first wall and a second wall; the discharge mounting seat is connected to an end of the chassis in a first horizontal direction. In the height direction of the pallet box, the discharge mounting seat at least partially protrudes from the chassis. The discharge mounting seat has a mounting seat hole for connecting the liquid material transport bag; the first wall is pivotally connected to an end of the chassis in the first horizontal direction, and the first wall is provided with an avoidance opening for avoiding the discharge mounting seat; the second wall is pivotally connected to an end of the chassis in a second horizontal direction perpendicular to the first horizontal direction; the dimension of the discharge mounting seat in the first horizontal direction is greater than the dimension of the first wall in the first horizontal direction. Thus, the depth dimension of the discharge mounting seat is greater than the thickness of the first wall, and the discharge mounting seat can be applicable to a discharge head with a relatively large length.

Description

Technical Field

[0001] The present invention relates to the field of containers, and more particularly to pallet boxes. Background Art

[0002] Collapsible pallet boxes can be configured with liquid transport bags to transport liquid goods. The discharging methods of liquid goods are divided into upper discharging method and lower discharging method. For the lower discharging method, the liquid transport bag has a discharging head at the lower part of the liquid transport bag, and there is a discharging mounting seat at the position of the pallet box corresponding to the discharging head. When installing the liquid transport bag, place the liquid transport bag inside the box, then extend the discharging head through the mounting hole of the discharging mounting seat and fix it on the discharging mounting seat. When discharging, connect the discharging pipe to the discharging head for discharging. After discharging, disassemble and discard the liquid transport bag, and fold the pallet box for transportation for recycling.

[0003] In the existing pallet boxes, the discharging mounting seat is arranged on the end wall of the pallet box. Since the thickness dimension of the end wall is small, if the discharging mounting seat extends into the pallet box, it will affect the folding of the pallet box. If the discharging mounting seat extends outside the end wall, the discharging mounting seat may be collided. Therefore, the depth dimension of the existing discharging mounting seat is small and is not suitable for discharging heads with larger length dimensions.

[0004] Therefore, 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 section, which will be further described in detail in the Detailed Embodiment section. The Summary of the Invention section of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above technical problems, the present invention provides a pallet box for accommodating a liquid transport bag. The pallet box includes: a chassis; a discharging mounting seat connected to the first horizontal end of the chassis, and in the height direction of the pallet box, the discharging mounting seat at least partially protrudes from the chassis. The discharging mounting seat has a mounting hole for connecting the liquid transport bag; a first wall pivotally connected to the first horizontal end of the chassis, and the first wall is provided with an avoidance opening for avoiding the discharging mounting seat; a second wall pivotally connected to the second horizontal end of the chassis perpendicular to the first horizontal direction; wherein, the dimension of the discharging mounting seat in the first horizontal direction is greater than the dimension of the first wall in the first horizontal direction.

[0007] For the pallet box according to the present invention, the size of the discharging mounting seat in the first horizontal direction is larger than the size of the first wall of the pallet box in the assembled state in the first horizontal direction, the depth dimension of the discharging mounting seat is larger than the thickness of the first wall, and the discharging mounting seat can be applicable to a discharging head with a larger length.

[0008] Optionally, the discharging mounting seat is provided with a lug, and the lug is used for snap-connecting to a hook of a clamping seat for connecting to the discharging head of the liquid material transport bag or a hook of the discharging head.

[0009] Optionally, a floor is provided at a part of the top end of the chassis. In the height direction of the pallet box, a part of the discharging mounting seat is located below the floor, and a part of the chassis and a part of the discharging mounting seat define a discharging groove recessed downward from the upper surface of the floor, and the discharging groove is used for accommodating a part of the discharging head of the liquid material transport bag.

[0010] Optionally, the pallet box further includes a discharging cover plate located outside the discharging mounting seat. The discharging cover plate is pivotally connected to the chassis around a cover plate pivot axis extending in the vertical direction so as to rotate between an open position and a closed position. The discharging cover plate in the open position is separated from the discharging mounting seat, and the discharging cover plate in the closed position covers the discharging mounting seat.

[0011] Optionally, the discharging cover plate is provided with a hook, and the chassis is provided with a hanging hole corresponding to the hook. The discharging cover plate is movably arranged along the axis direction of the cover plate pivot axis so that the hook extends into the hanging hole or the hook leaves the hanging hole.

[0012] Optionally, the outer surface of the discharging cover plate in the closed position does not protrude from the chassis.

[0013] Optionally, at least one of the chassis, the first wall, the second wall and the discharging mounting seat is a metal part.

[0014] Optionally, the first wall includes a front first wall at one end of the chassis and a rear first wall at the other end of the chassis. The pivoting position of the front first wall and the chassis is higher than the pivoting position of the rear first wall and the chassis, and the discharging mounting seat is located at the end of the chassis that is pivotally connected to the front first wall.

[0015] Optionally, a step is provided at the upper end of the discharging mounting seat to avoid the first wall.

[0016] Optionally, the pallet box further includes a clamping seat and / or a liquid material transport bag. Description of the Drawings

[0017] In order to make the advantages of the present invention easier to understand, the present invention briefly described above will be described in more detail by referring to the specific embodiments shown in the drawings. It can be understood that these drawings only depict typical embodiments of the present invention, and therefore should not be considered as limiting its protection scope. The present invention is described and explained with additional features and details through the drawings.

[0018] Figure 1 Schematic perspective view of a tray box according to the first preferred embodiment of the present invention;

[0019] Figure 2 is Figure 1 Partial enlarged view at A of

[0020] Figure 3 is Figure 1 Front view of the tray box of

[0021] Figure 4 is Figure 3 Partial enlarged view at B of

[0022] Figure 5 is Figure 1 Schematic perspective view of the discharge mounting seat of the tray box of

[0023] Figure 6 is Figure 1 Another schematic perspective view of the discharge mounting seat of the tray box of

[0024] Figure 7 is Figure 1 Schematic view of the chassis and the discharge mounting seat of the tray box of connected together;

[0025] Figure 8 is Figure 7 Partial enlarged view at C of

[0026] Figure 9 is Figure 1 Cross-sectional view of the tray box of

[0027] Figure 10 is Figure 9 Partial enlarged view at E of

[0028] Figure 11 is Figure 1 Schematic perspective view of the card holder and the discharge head of the tray box of connected together;

[0029] Figure 12 is Figure 11 Schematic perspective view of the discharge head of

[0030] Figure 13 is Figure 11 Schematic perspective view of the card holder of

[0031] Figure 14 Schematic perspective view of the discharge head of the tray box according to the second preferred embodiment of the present invention; and

[0032] Figure 15Schematic perspective view of the discharge head of the tray box according to the third preferred embodiment of the present invention.

[0033] Description of reference numerals

[0034] 110: Underframe 111: Floor

[0035] 112: Hanging hole 113: First upper beam

[0036] 114: Second upper beam 115: First lower step

[0037] 116: First upper step 117: First pivot tube

[0038] 118: Column 119: Corner guard

[0039] 120: Discharge mounting seat 121: Mounting seat hole

[0040] 122: Latching ear 123: Latching ear boss

[0041] 124: Second lower step 125: Second upper step

[0042] 126: Positioning portion 130: Discharge head

[0043] 140: First wall 141: Relief opening

[0044] 142: Second pivot tube 143: Front first wall

[0045] 144: Rear first wall 150: Second wall

[0046] 160: Clamping seat 161: Mounting notch

[0047] 162: Hook 163: Positioning edge

[0048] 170: Discharge chute 180: Discharge cover

[0049] 181: Cover pivot shaft 182: Hook

[0050] 183: Operation hole 184: Sealing hole

[0051] 190: Top cover 230: Discharge head

[0052] 231: Hook 232: Positioning edge

[0053] 330: Discharge head 331: Hook Detailed implementation manners

[0054] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that the embodiments of the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the embodiments of the present invention.

[0055] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be noted that the terms "upper", "lower" and similar expressions used herein are for illustrative purposes only and are not limiting.

[0056] In this document, ordinal numbers such as "first" and "second" cited in this application are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" does not imply the existence of a "second component" by itself, and the term "second component" does not imply the existence of a "first component" by itself.

[0057] In order to thoroughly 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. However, in addition to these detailed descriptions, the present invention may have other embodiments.

[0058] First Embodiment

[0059] The present invention provides a pallet box. The pallet box is used to accommodate a liquid transport bag. In this way, the pallet box can transport liquids through the liquid transport bag.

[0060] Please refer to Figures 1 to 4 , Figures 7 to 10 , the pallet box includes a chassis 110, two first walls 140, two second walls 150 and two top covers 190. As Figure 7 and Figure 8 shown, the chassis 110 is provided with an upper beam and a floor 111. The upper beam includes a first upper beam 113 and a second upper beam 114. In the first horizontal direction D1, the first upper beam 113 is located at one end of the chassis 110, and the second upper beam 114 is located at the other end of the chassis 110. The cross-section of the upper beam in the second horizontal direction D2 (the cross-section is perpendicular to the second horizontal direction D2) is in the shape of a first stepped shape. The first stepped shape includes a first lower step 115 and a first upper step 116. In the height direction D3 of the chassis 110 (the height direction of the pallet box), the first upper step 116 is located above the first lower step 115. The steps in this embodiment are structures.

[0061] Please refer to Figure 7 and Figure 8, in the first horizontal direction D1 (the first horizontal direction D1 is perpendicular to the second horizontal direction D2), a floor 111 is further provided between the first upper beam 113 and the second upper beam 114, so that goods to be transported can be placed on the floor 111. The end of the floor 111 in the first horizontal direction D1 is laid on the upper surface of the first lower step 115. In the height direction D3 of the chassis 110, the upper surfaces of the first upper steps 116 of the two upper beams are both located above the floor 111.

[0062] As Figure 8 and Figure 10 shown, a first pivot tube 117 is connected (welded connection) to the upper surface of the first upper step 116 of the upper beam, and the axis of the first pivot tube 117 extends along the second horizontal direction D2. A second pivot tube 142 is connected (welded connection) to the lower surface of the first wall 140. The axis of the second pivot tube 142 extends along the second horizontal direction D2. The first pivot tube 117 and the second pivot tube 142 are arranged substantially coaxially. The pallet box further includes a wall pivot shaft (not shown), and the wall pivot shaft passes through the pipe of the first pivot tube 117 and then passes through the pipe of the second pivot tube 142. In this way, the first wall 140 is pivotally connected to the upper beam through the wall pivot shaft, the first pivot tube 117 and the second pivot tube 142.

[0063] As Figure 9 shown, the first wall 140 includes a front first wall 143 and a rear first wall 144. The front first wall 143 is pivotally connected to the first upper beam 113. The rear first wall 144 is pivotally connected to the second upper beam 114. In the height direction D3 of the chassis 110, the axis of the second pivot tube 142 connecting the front first wall 143 is above the axis of the second pivot tube 142 connecting the rear first wall 144, and the distance between the axes of the two second pivot tubes 142 is slightly greater than the thickness dimension of the first wall 140 (the dimension of the first wall 140 in the first horizontal direction D1 when the pallet box is in the assembled state described later, that is, the dimension of the first wall 140 in the height direction D3 of the chassis 110 when the pallet box is in the folded state described later). In this way, when the pallet box is in the folded state described later, there will be no interference between the two first walls 140.

[0064] Please refer to Figure 7 and Figure 8 , a notch is provided at a substantially middle position in the second horizontal direction D2 at the end of the floor 111 close to the first upper beam 113. The part of the chassis 110 supporting the floor 111 is recessed downward at this notch. An installation seat opening is provided at one end of the chassis 110 provided with the first upper beam 113 at the above notch. The pallet box further includes a discharge installation seat 120. The discharge installation seat 120 is constructed as a rectangular parallelepiped structure with an opening. The opening of the discharge installation seat 120 faces the outside of the pallet box in the assembled state described later. The discharge installation seat 120 is provided at the installation seat opening.

[0065] As shown Figure 7 and Figure 8 in the height direction D3 of the underframe 110, the upper end of the discharge mounting seat 120 is located above the floor 111, and the lower end of the discharge mounting seat 120 is located below the floor 111. In this way, the discharge mounting seat 120, the recessed part of the underframe, and the notch of the floor 111 define a discharge chute 170 extending downward from the upper surface of the floor 111.

[0066] As shown Figures 5 to 10 in the figure, the discharge mounting seat 120 is provided with a mounting seat hole 121. After the liquid material transport bag is placed in the pallet box in the assembled state described later, its discharge head 130 can enter the above-mentioned discharge chute 170, then pass through the mounting seat hole 121 and extend outside the mounting seat hole 121 for discharging the liquid in the liquid material transport bag. In this way, the part of the discharge chute 170 that accommodates the discharge head 130 can drain the liquid in the liquid material transport bag completely. The discharge head 130 includes a body, a valve, and a valve handle for operating the valve. When the discharge head 130 is installed on the discharge mounting seat 120, the valve handle is located above the body.

[0067] The discharge mounting seat 120 is arranged at one end of the underframe 110 where the first upper beam 113 is provided, and the axis of the first pivot tube 117 located on the first upper beam 113 is above the axis of the first pivot tube 117 located on the second upper beam 114. In this way, the height dimension of the discharge mounting seat 120 is increased as much as possible, thereby increasing the installation space for installing the discharge head 130 and the operation space for the handle of the valve for operating the discharge head 130.

[0068] Please refer to Figures 5 to 8 , the shape of the upper end of the discharge mounting seat 120 in the cross-section (the cross-section is perpendicular to the second horizontal direction D2) in the second horizontal direction D2 is a second stepped shape. The second stepped shape includes a second lower step 124 and a second upper step 125. In the height direction D3 of the underframe 110, the second upper step 125 is located above the second lower step 124.

[0069] As shown Figure 8As shown, in the height direction D3 of the chassis 110, the upper surface of the second lower step 124 and the upper surface of the first upper step 116 are substantially flush. The upper surface of the second upper step 125 and the end of the first pivot tube 117 in the height direction D3 of the chassis 110 are substantially flush. The inner side surface of the first upper step 116 (the surface of the first upper step 116 facing the inside of the pallet box in the assembled state) and the inner side surface of the second upper step 125 (the surface of the second upper step 125 facing the inside of the pallet box in the assembled state) are substantially flush. The inner side surface of the first lower step 115 (the surface of the first lower step 115 facing the inside of the pallet box in the assembled state) and the inner side surface of the second lower step 124 (the surface of the second lower step 124 facing the inside of the pallet box in the assembled state) are substantially flush. Thus, the setting of the second step can increase the aforementioned operating space and the lifting space of the discharge cover plate 180. The setting of the second lower step 124 can avoid the front first wall 143 of the pallet box in the folded state and prevent interference between the front first wall 143 and the discharge mounting seat 120.

[0070] Please continue to refer to Figure 8 and Figure 10 , a relief opening 141 is provided at the discharge mounting seat 120 on the front first wall 143. The relief opening 141 is used to avoid the discharge mounting seat 120 to prevent interference between the rotating front first wall 143 and the discharge mounting seat 120.

[0071] When the pallet box is in the assembled state described later, in the first horizontal direction D1, the size of the discharge mounting seat 120 is larger than the size of the first wall 140. In this way, the depth dimension of the discharge mounting seat 120 can be larger than the thickness of the first wall 140, and the discharge mounting seat 120 can be suitable for a discharge head 130 with a larger length.

[0072] Preferably, at least one of the chassis 110, the first wall 140, the second wall 150 and the top cover 190 is a metal part. Thus, the strength of the pallet box is high. The discharge mounting seat 120 is made of metal, and the discharge mounting seat 120 has high strength and can fix the discharge head 130 more firmly. Further preferably, the discharge mounting seat 120 can be a sheet metal part.

[0073] As Figures 5 to 10As shown, the part of the discharging mounting seat 120 surrounding the mounting seat hole 121 is bent towards the direction outside the tray box (the direction outside the tray box in the assembled state) to form lugs 122. There are two lugs 122. In the second horizontal direction D2, one lug 122 is located on one side of the mounting seat hole 121, and the other lug 122 is located on the other side of the mounting seat hole 121. Two lug bosses 123 are provided on each lug 122. The two lug bosses 123 on each lug 122 are spaced apart in the height direction D3 of the chassis 110. One positioning portion 126 is provided on each of the two side portions of each lug 122 in the height direction D3 of the chassis 110.

[0074] The tray box further includes the above-mentioned liquid material transport bag and the card seat 160. As Figures 11 to 13 shown, the card seat 160 may be provided with a positioning edge 163 corresponding to the positioning portion 126, and a hook 162 located on the positioning edge 163 for cooperating with the lug 122. After the positioning edge 163 and the hook 162 pass through the mounting seat hole 121, the hook 162 is snapped onto the lug 122. At this time, the positioning edge 163 is located between the two corresponding positioning portions 126, so that the positioning portion 126 and the corresponding positioning edge 163 cooperate to limit the movement of the positioning edge 163 in the height direction D3 of the chassis 110. The positioning edge 163 is located on the side of the lug 122 facing the mounting seat hole 121, and the lug 122 restricts the movement of the card seat 160 in the second horizontal direction D2. The hook 162 of the card seat 160 is snapped onto the portion between the two lug bosses 123 on each lug 122. In this way, the lug boss 123 restricts the movement of the hook 162 in the height direction D3 of the chassis 110. In an embodiment not shown, the lug 122 may not be provided with a lug boss 123. At this time, only the positioning portion 126 and the corresponding positioning edge 163 cooperate to limit the movement of the positioning edge 163 in the height direction D3 of the chassis 110. A part of the card seat 160 abuts against the part of the discharging mounting seat 120 surrounding the mounting seat hole 121 to limit the movement of the hook 162 in the axial direction of the mounting seat hole 121 and prevent the hook 162 from disengaging from the lug 122.

[0075] Please refer to Figures 11 to 13 As shown in, the card seat 160 is provided with a mounting notch 161. A part of the discharging head 130 of the liquid material transport bag can enter the card seat 160 through the mounting notch 161 and be fixedly connected to the mounting notch 161 of the card seat 160.

[0076] As Figure 2As shown, a cover plate pivot shaft 181 is provided at the opening of the mounting seat on the chassis 110. The axis of the cover plate pivot shaft 181 extends along the height direction D3 of the chassis 110. The tray box further includes a discharge cover plate 180 located outside the discharge mounting seat 120 (the side of the discharge mounting seat 120 away from the inside of the tray box in the assembled state described later). The discharge cover plate 180 can be a plate with a substantially rectangular structure. One end of the discharge cover plate 180 is provided with a pivot hole. The pivot hole is sleeved on the outer periphery of the cover plate pivot shaft 181 so that the discharge cover plate 180 is pivotally connected to the chassis 110. In this way, the discharge cover plate 180 can rotate between an open position and a closed position. When the discharge cover plate 180 is in the open position, it is separated from the discharge mounting seat 120. At this time, the discharge head 130 can be connected to the discharge pipe, and then the valve of the discharge head 130 is opened to discharge the liquid in the liquid material transport bag. When the discharge cover plate 180 is in the closed position, it covers the discharge mounting seat 120, and at this time, the discharge cover plate 180 shields the discharge head 130.

[0077] The discharge cover plate 180 is movably arranged along the axis direction of the cover plate pivot shaft 181. A downwardly extending hook 182 is provided at the lower part of the end of the discharge cover plate 180 away from the cover plate pivot shaft 181. The chassis 110 is provided with a hanging hole 112 corresponding to the hook 182. In this way, when the discharge cover plate 180 in the closed position is moved downward, the hook 182 can be inserted into the hanging hole 112 to lock the discharge cover plate 180 on the chassis 110 and prevent the discharge cover plate 180 from rotating. If you want to rotate the discharge cover plate 180 to the open position, move the discharge cover plate 180 upward so that the hook 182 leaves the hanging hole 112. At this time, the discharge cover plate 180 can rotate around the axis of the cover plate pivot shaft 181.

[0078] The discharge cover plate 180 is further provided with an operation hole 183, and the staff can insert their fingers into the operation hole 183 to move the discharge cover plate 180.

[0079] The tray box further includes a seal. The discharge cover plate 180 is also provided with a seal hole 184 at the hook 182. After the hook 182 is inserted into the hanging hole 112, the seal rope of the seal can pass through the seal hole 184 and the hanging hole 112 in sequence to seal and lock the discharge cover plate 180 on the chassis 110.

[0080] As Figure 2 and Figure 8 shown, when the tray box is in the assembled state described later, the outer surface of the front first wall 143 is substantially flush with the outer end of the second upper step 125. As Figure 1 and 2 shown, a part of the discharge cover plate 180 in the closed position is located inside the discharge mounting seat 120. At this time, the outer surface of the discharge cover plate 180 does not protrude from the outer surface of the chassis 110. Thus, during the transportation of the tray box, the probability of bumping the discharge cover plate 180 can be reduced.

[0081] As Figure 1 and Figure 7 shown, a column 118 is provided on both sides of the end of the underframe 110 in the second horizontal direction D2. A second wall 150 is pivotally connected to one end of the underframe 110 through the column 118, and another second wall 150 is pivotally connected to the other end of the underframe 110 through the column 118. A top cover 190 is pivotally connected to one end of a second wall 150 away from the underframe 110, and another top cover 190 is pivotally connected to one end of the other second wall 150 away from the underframe 110.

[0082] In this embodiment, the tray box has a folded state and an assembled state. The underframe 110, the first wall 140, the second wall 150 and the top cover 190 of the tray box in the assembled state enclose a substantially cuboid structure, and at this time, the tray box can be used for transporting goods.

[0083] When the tray box has transported the goods, one top cover 190 can be rotated first so that it rotates to the outer side of the second wall 150 to which it is connected (the surface of the second wall 150 facing the outside of the tray box in the assembled state of the tray box), then the other top cover 190 is rotated so that it rotates to the outer side of the second wall 150 to which it is connected, and then the rear first wall 144 is rotated so that it folds onto the underframe 110; then the front first wall 143 is rotated so that it folds onto the rear first wall 144; then one second wall 150 is rotated so that the second wall 150 folds onto the front first wall 143; then the other second wall 150 is rotated so that the second wall 150 folds onto the top cover 190 connected to the first folded second wall 150, completing the folding of the tray box so that the tray box is in the folded state, which is convenient for the return journey.

[0084] If you want to make the tray box in the assembled state, you can operate in the reverse steps of the above steps for folding the tray box, and then cooperate with the wall lock provided on the first wall 140 and the hook plate provided on the second wall 150 to connect the first wall 140 and the second wall 150 together; then fix the top cover 190 to the first wall 140 through the top cover lock provided on the first wall 140.

[0085] As Figure 1 shown, the front first wall 143 includes an upper first wall and a lower first wall. One end of the upper first wall is pivotally connected to one end of the lower first wall. The end of the lower first wall away from the upper first wall is pivotally connected to the underframe 110. Thus, it is convenient to install the liquid material transport bag.

[0086] As Figures 7 to 10As shown, on the second horizontal direction D2, corner guards 119 are provided on both sides of the discharging mounting seat 120. The corner guards 119 can be sheet metal parts. On the second horizontal direction D2, the two corner guards 119 are inclined downward from top to bottom and away from each other. The lower end of the corner guard 119 is connected to the upper surface of the first lower step 115. The upper end of the corner guard 119 is connected to the side surface of the discharging mounting seat 120 in the second horizontal direction D2. The top end of the corner guard 119 is substantially flush with the upper surface of the second lower step 124. The connection between the corner guard 119 and the chassis 110, the connection between the corner guard 119 and the discharging mounting seat 120, and the sharp corners of the corner guard 119 itself are all smoothed to remove the sharp corners and prevent scratching the liquid material transport bag. The corner guard 119 can blunt the right angle between the discharging mounting seat 120 and the chassis 110 to avoid scratching the liquid material transport bag with this right angle.

[0087] The pallet box can also include a discharging chute cover plate. The discharging chute cover plate can be a separable part of the pallet box. The discharging chute cover plate can be a sheet metal part, a profiled part, a plastic part or a part made of other materials. The discharging chute cover plate is used to cover the discharging chute 170 when the pallet box is not used for transporting liquid materials. At this time, the pallet box can be used as an ordinary pallet box.

[0088] The pallet box of this embodiment can be applicable to discharging heads 130 of various specifications of liquid material transport bags, such as discharging heads 130 with valves. In addition, the setting of the discharging mounting seat 120 does not affect the folding of the pallet box and does not occupy the internal space of the pallet box in the assembled state.

[0089] Second Embodiment

[0090] In the second embodiment, the pallet box does not include a clamping seat. As Figure 14As shown in the figure, the discharging head 230 may be provided with a positioning edge 232 and hooks 231 located on the positioning edge 232 for cooperating with the lugs. The positioning edge 232 is substantially the same as the positioning edge 163 in the first embodiment, and the hooks 231 are substantially the same as the hooks 162 in the first embodiment. After a part of the discharging head 230, the positioning edge 232, and the hooks 231 pass through the mounting seat hole, the hooks 231 are snapped onto the lugs. The positioning edge 232 is located between two corresponding positioning parts, so that the positioning parts cooperate with the corresponding positioning edge 232 to limit the movement of the positioning edge 232 in the height direction D3 of the chassis. The positioning edge 232 is located on the side of the lug facing the mounting seat hole, and the lug restricts the movement of the discharging head 230 in the second horizontal direction D2. The hooks 231 of the discharging head 230 are snapped onto the part between the two lug bosses on each lug. In this way, the lug bosses restrict the movement of the hooks 231 in the height direction D3 of the chassis. A part of the discharging head 230 abuts against the part of the discharging mounting seat surrounding the mounting seat hole to limit the movement of the hooks 231 in the axial direction of the mounting seat hole and prevent the hooks 231 from disengaging from the lugs. It should be noted that the other settings in the second embodiment are substantially the same as those in the first embodiment and will not be elaborated here.

[0091] The third embodiment

[0092] In the third embodiment, the tray box does not include a card seat. As Figure 15 shown in the figure, the discharging head 330 may be provided with hooks 331 for cooperating with the lugs. The hooks 331 are substantially the same as the hooks 162 in the first embodiment. The discharging head 330 is not provided with a positioning edge. After a part of the discharging head 330 and the hooks 331 pass through the mounting seat hole, the hooks 331 are snapped onto the lugs.

[0093] The hooks 331 are located on the side of the lug facing the mounting seat hole, and the lug restricts the movement of the discharging head 330 in the second horizontal direction D2. The hooks 331 of the discharging head 330 are snapped onto the part between the two lug bosses on each lug. In this way, the lug bosses restrict the movement of the hooks 331 in the height direction D3 of the chassis. A part of the discharging head 330 abuts against the part of the discharging mounting seat surrounding the mounting seat hole to limit the movement of the hooks 331 in the axial direction of the mounting seat hole and prevent the hooks 331 from disengaging from the lugs. It should be noted that the other settings in the third embodiment are substantially the same as those in the first embodiment and will not be elaborated here.

[0094] The present invention has been illustrated by the above embodiments. However, it should be understood that the above embodiments are for illustrative and exemplary purposes only, and are not intended to limit the present invention to the scope of the described embodiments. In addition, those skilled in the art can understand 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 protection required by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalent scope.

[0095] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Terms such as "component" as used herein can represent either a single part or a combination of multiple parts. Terms such as "mounted" and "arranged" as used herein can represent either a component being directly attached to another component or a component being attached to another component through an intermediate member. Features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0096] The present invention has been illustrated by the above embodiments. However, it should be understood that the above embodiments are for illustrative and exemplary purposes only, and are not intended to limit the present invention to the scope of the described embodiments. Those skilled in the art can understand that 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 protection required by the present invention.

Claims

1. A pallet box for accommodating a liquid material transport bag, characterized in that, The pallet box includes: A chassis having an upper beam, the upper beam including a first lower step and a first upper step located above the first lower step; A discharge mounting seat connected to an end of the chassis in a first horizontal direction. In the height direction of the pallet box, the discharge mounting seat at least partially protrudes above the chassis. The discharge mounting seat has a mounting seat hole for connecting the liquid material transport bag. The top end of the discharge mounting seat is provided with a second lower step and a second upper step located above the second lower step, and the second lower step is located above the first lower step; A first wall pivotally connected to the end of the chassis in the first horizontal direction. The first wall is provided with an avoidance opening at the discharge mounting seat to avoid interference between the rotating first wall and the discharge mounting seat; A second wall pivotally connected to an end of the chassis in a second horizontal direction perpendicular to the first horizontal direction; Wherein, the size of the discharge mounting seat in the first horizontal direction is greater than the size of the first wall in the first horizontal direction; An angle guard plate is provided on the side of the discharge mounting seat along the second horizontal direction. The angle guard plate is inclined to the vertical direction. The upper end of the angle guard plate is connected to the side surface of the discharge mounting seat along the second horizontal direction, and the lower end of the angle guard plate is connected to the upper surface of the first lower step.

2. The tray box according to claim 1, wherein, The discharge mounting seat is provided with a lug for clamping and connecting to a hook of a clamping seat for connecting to a discharge head of the liquid material transport bag or a hook of the discharge head.

3. The pallet box according to claim 1, characterized in that, A part of the top end of the chassis is provided with a floor. In the height direction of the pallet box, a part of the discharge mounting seat is located below the floor. A part of the chassis and a part of the discharge mounting seat define a discharge groove recessed downward from the upper surface of the floor for accommodating a part of the discharge head of the liquid material transport bag.

4. The pallet box according to claim 1, characterized in that, The pallet box further includes a discharge cover plate located outside the discharge mounting seat. The discharge cover plate is pivotally connected to the chassis around a cover plate pivot axis extending in the vertical direction to rotate between an open position and a closed position. The discharge cover plate in the open position is separated from the discharge mounting seat, and the discharge cover plate in the closed position covers the discharge mounting seat.

5. The tray box according to claim 4, characterized in that The discharge cover plate is provided with a hook, and the chassis is provided with a hanging hole corresponding to the hook. The discharge cover plate is movably arranged along the axis direction of the cover plate pivot axis so that the hook extends into the hanging hole or the hook leaves the hanging hole.

6. The pallet box according to claim 4, characterized in that, The outer surface of the discharge cover plate in the closed position does not protrude from the chassis.

7. The tray box according to claim 1, characterized in that, At least one of the chassis, the first wall, the second wall and the discharge mounting seat is a metal part.

8. The tray box according to claim 1, characterized in that, The first wall includes a front first wall located at one end of the chassis and a rear first wall located at the other end of the chassis. The pivoting position of the front first wall and the chassis is higher than the pivoting position of the rear first wall and the chassis. The discharge mounting seat is located at the end of the chassis that is pivotally connected to the front first wall.

9. The tray box according to claim 2, characterized in that, The tray box further includes the card holder and / or the liquid material transport bag.

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