Transport box

Abstract

The invention discloses a transport case. The transport case comprises a lower-layer transport frame and an upper-layer transport frame. The lower-layer transportation frame comprises a bottom frame and a lower-layer side frame, and the lower-layer side frame is fixedly connected to the bottom frame. The upper-layer transportation frame comprises an upper-layer transportation platform and an upper-layer side frame, and the upper-layer side frame is fixedly connected to the upper-layer transportation platform. The whole upper-layer transportation frame can move up and down in the height direction of the transportation box. According to the transport case, the use mode is flexible, loading and unloading are safe, the return utilization rate is high, and the transport cost is low.

Description

Technical Field

[0001] The present application relates to the technical field of transport equipment manufacturing, and in particular to a transport box. Background Art

[0002] At present, some transport boxes cannot take into account both cargo loading capacity and return utilization. For example, transport boxes for transporting cars are limited in the type and quantity of transported cars, and the loading and unloading operations are labor-intensive and costly. Due to the limited types of transported goods, it is very likely that no matching source of goods for the return trip can be found and the empty box will return, resulting in low return utilization of the transport box.

[0003] Therefore, a transport box is needed to at least partially solve the above problems. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the Detailed Description of the Invention section. The Summary of the Invention section of this application 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 scope of protection of the claimed technical solution.

[0005] In order to at least partially solve the above problems, the present application provides a transport box, which includes:

[0006] A lower transport frame, the lower transport frame comprising a bottom frame and a lower side frame, the lower side frame being fixedly connected to the bottom frame;

[0007] The upper transport frame includes an upper transport platform and an upper side frame, and the upper side frame is fixedly connected to the upper transport platform.

[0008] The upper transport frame as a whole can move up and down along the height direction of the transport box.

[0009] According to the transport box of the present application, the upper transport frame can be moved downward to reduce the overall height of the transport box, and it can be used as a half-height box or a double-layer transport box, and can be used for more types of goods. When used as a double-layer transport box, the upper transport platform can be placed close to the ground for loading and unloading of goods, reducing the risk of loading and unloading and making the operation simple. In addition, on the return trip, ordinary goods can also be loaded, or two transport boxes can be nested and loaded into a standard container for transportation back. Therefore, the transport box of this design is flexible in use, safe in loading and unloading, and has low return transportation costs.

[0010] Optionally, the lower side frame includes a first fixed column, the lower end of which is fixedly connected to the base frame, and the upper side frame includes a first movable column, which is fixedly connected to the upper transport platform.

[0011] The first movable column is sleeved with the first fixed column and can move relatively along the height direction. The transport box also includes a first fixing member, which is used to penetrate the first fixed column and the first movable column to fix the height of the first movable column.

[0012] Optionally, the upper side frame includes a second fixed column and a second movable column, wherein the second fixed column is fixed to the upper transport platform.

[0013] The second movable column is sleeved with the second fixed column and can move relatively along the height direction, the top of the second movable column is provided with a top corner piece, and the transport box further comprises a second fixing piece, the second fixing piece is used to penetrate the second movable column and the second fixed column to fix the second movable column. Optionally, at least one of the first fixed column and the first movable column is provided with at least two first insertion holes spaced apart along the height direction, the first insertion holes are used for the first fixing piece to penetrate; and / or

[0014] At least one of the second fixed column and the second movable column is provided with at least two second insertion holes spaced apart along the height direction, and the second insertion holes are used for the second fixing member to penetrate therein.

[0015] Optionally, the first fixed columns are arranged on both sides of the base frame along the width direction of the transport box, and at least two of the first fixed columns on each side are arranged at intervals along the length direction of the transport box.

[0016] Optionally, the lower side frame further comprises a third fixed column, the lower end of which is fixedly connected to the base frame, and the upper side frame further comprises a third movable column, which is fixedly connected to the upper transport platform.

[0017] The third movable column is sleeved with the third fixed column and can move relatively along the height direction. The third movable column is arranged to exert an upward pulling force on the third fixed column at a predetermined position relative to the third fixed column.

[0018] Optionally, in the length direction, the third fixed column is located between the two first fixed columns; and / or

[0019] The third fixing columns are located at two ends of the transport box along the length direction.

[0020] Optionally, the transport box also includes a connecting column and a fixing device, the connecting column is arranged on at least one side in the width direction of the transport box, the two ends of the connecting column are pivotally connected to the upper transport frame and the base frame respectively, and the lower end of the connecting column can slide along the length direction of the transport box, and the fixing device is used to fix the lower end of the connecting column to the base frame.

[0021] Optionally, the third movable column is provided with a limit piece, and at the lowest position of the upper transport frame, the third movable column abuts against the base frame, and the limit piece limits the upward movement of the third movable column relative to the third fixed column, the first fixing piece fixes the first movable column, and the fixing device fixes the connecting column.

[0022] Optionally, one of the third fixed column and the third movable column located in the inner layer is provided with a protrusion protruding outward on the outer periphery, and one of the third fixed column and the third movable column located in the outer layer is provided with a third fixing piece, and when the third movable column is at the predetermined position relative to the third fixed column, the third fixing piece abuts against the protrusion to prevent the third fixed column from moving downward relative to the third movable column.

[0023] Optionally, the third fixing member is a spring pin, and when the third movable column is at a first predetermined position relative to the third fixed column, the spring pin passes through the third fixed column and one of the third movable columns located at the outer layer, and abuts against the protrusion.

[0024] Optionally, the third fixing member is an end plate with an opening, the end plate is fixedly connected to the end of one of the third fixed column and the third movable column located in the outer layer, and the end plate abuts the protrusion when the third movable column is at a second predetermined position relative to the third fixed column.

[0025] Optionally, the transport box also includes a rope, which is used to pull the second movable column upward, the second fixed column is provided with a fixed rope ring, the second movable column is provided with a movable rope ring, the fixed rope ring is located above the movable rope ring, one end of the rope is connected to the movable rope ring, and the other end of the rope passes through the fixed rope ring.

[0026] Optionally, the second fixed column is provided with a slide groove along the height direction, the fixed rope ring is located above the slide groove, and the movable rope ring moves in the slide groove; or,

[0027] The second movable column is provided with a slide groove along the height direction, the movable rope ring is located below the slide groove, and the fixed rope ring moves relative to the movable rope ring in the slide groove.

[0028] Optionally, the other end of the rope is connected to the lower transport frame or the upper transport platform via a rope tightening device; and / or

[0029] The transport box is also provided with a guide rope ring for guiding the extending direction of the rope.

[0030] Optionally, the spacing between the top corner pieces of the second fixed column in the length direction and the width direction of the transport box complies with international standards, and the first movable column is fixedly connected to the second fixed column.

[0031] Optionally, the lower transport frame includes bottom corner pieces, and the bottom corner pieces are arranged on both sides of the base frame along the width direction of the transport box, and a plurality of the bottom corner pieces are arranged at intervals along the length direction of the transport box.

[0032] Optionally, the upper side frame further includes an upper side beam, a lower side beam and a connecting beam.

[0033] The lower beam and the upper beam are both arranged along the length direction of the transport box and are fixedly connected to the first movable column and the second fixed column; the lower beam is fixedly connected to both sides of the upper transport platform respectively; the upper beam is located above the lower beam, and both ends of the connecting beam are respectively connected to the upper beam and the lower beam, and the connecting beam forms an angle with the height direction.

[0034] Optionally, the upper transport platform is provided with a hook for hoisting the upper transport platform; and / or

[0035] The upper transport frame can be moved to a height of the transport box that is less than 1.6 m. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The following drawings of the present application are used as a part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, which are used to explain the principle of the present application.

[0037] Figure 1 A schematic diagram of a transport box loaded with a car according to a specific embodiment of the present application;

[0038] Figure 2 for Figure 1 A schematic diagram of the transport box shown at another angle;

[0039] Figure 3 for Figure 1 A partial enlarged schematic diagram of the middle area A;

[0040] Figure 4 for Figure 1 A partial enlarged schematic diagram of the middle area B;

[0041] Figure 5 for Figure 4 Another schematic diagram of the structure shown, in which the side wall of the second movable column is omitted for ease of illustration;

[0042] Figure 6 for Figure 4 Another schematic diagram of the structure shown, in which the side wall of the second movable column is omitted for ease of illustration;

[0043] Figure 7 for Figure 1 A schematic diagram of another angle of the middle area A;

[0044] Figure 8 for Figure 1 A partial enlarged schematic diagram of the middle area C;

[0045] Fig. 9 It is a schematic diagram of a corner piece hole of a transport box according to a specific embodiment of the present application;

[0046] Fig.10 is another schematic diagram of a transport box according to a specific embodiment of the present application;

[0047] Fig.11 It is a schematic diagram of stacking two transport boxes according to a specific embodiment of the present application;

[0048] Fig.12 is another schematic diagram of two transport boxes stacked according to a specific embodiment of the present invention; and

[0049] Fig.13 It is a schematic diagram of two transport boxes according to a specific embodiment of the present application being packed into a standard container.

[0050] Description of reference numerals:

[0051] 10: Lower transport frame

[0052] 11: Chassis

[0053] 12: Lower side frame

[0054] 12A: First fixed column

[0055] 12B: Third fixed column

[0056] 13: Bottom corner piece

[0057] 20: Upper transport frame

[0058] 21: Upper transport platform

[0059] 22: Upper side frame

[0060] 22A: First movable column

[0061] 22B: The third movable column

[0062] 22C: Second fixed column

[0063] 22D: Second movable column

[0064] 23A / 23B: Second fixing piece

[0065] 24: Upper side beam

[0066] 25: Lower side beam

[0067] 26: Connecting beam

[0068] 27: Top corner piece

[0069] 28: Hook

[0070] 30A / 30B: First fixing piece

[0071] 31A: First socket

[0072] 31B: Second socket

[0073] 32: Protrusion

[0074] 33A: Spring pin

[0075] 33B: End plate

[0076] 34: Limiting parts

[0077] 40: Rope

[0078] 41: Fixed rope loop

[0079] 42: Mobile Rope Loop

[0080] 43: Chute

[0081] 44: Guide rope ring

[0082] 50: Connecting column

[0083] 51: Fixtures

[0084] 100: Transport box

[0085] D1: Length direction

[0086] D2: Width direction

[0087] D3: height direction DETAILED DESCRIPTION

[0088] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features well known in the art are not described.

[0089] In order to thoroughly understand the present application, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail as follows, but in addition to these detailed descriptions, the present application may also have other embodiments.

[0090] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of the features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0091] 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”.

[0092] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in this document are for illustrative purposes only and are not limiting.

[0093] The present application provides a transport box for transporting cars or other common goods.

[0094] Now, refer to the attached Figure 1 To Attachment Fig.13 Exemplary embodiments according to the present application are described in more detail.

[0095] like Figure 1 and Figure 2As shown, the transport box 100 includes a lower transport frame 10 and an upper transport frame 20, the upper transport frame 20 is located above the lower transport frame 10, and both the upper transport frame 20 and the lower transport frame 10 can be used to load goods. The lower transport frame 10 includes a bottom frame 11 and a lower side frame 12, the bottom frame 11 can be used to carry goods, and the lower side frame 12 is fixedly connected to the bottom frame 11. The lower side frame 12 is a structure fixedly connected to the bottom frame 11 and surrounding the lower loading space. The upper transport frame 20 includes an upper transport platform 21 and an upper side frame 22, the upper transport platform 21 can be used to carry goods, and the upper side frame 22 is fixedly connected to the upper transport platform 21. The upper side frame 22 is a structure fixedly connected to the upper transport platform 21 and surrounding the upper loading space. Among them, the upper transport frame 20 as a whole can move up and down along the height direction D3 of the transport box 100, so that the overall height of the transport box 100 can be adjusted.

[0096] According to the transport box 100 of the present application, the upper transport frame 20 can be moved downward to reduce the overall height of the transport box 100, and can be used as a single-layer half-height box or a double-layer transport box 100, which is flexible. When used as a double-layer transport box 100, the upper transport platform 21 can be placed close to the ground for loading and unloading goods (such as Fig.10 After loading and unloading, the transport box 100 can be adjusted to a preset height by a forklift, etc., to avoid high-altitude loading and unloading, with low risk and simple operation. In addition, the transport box 100 is suitable for transporting a wide range of goods, and can be used to load ordinary goods even if there is no matching automobile cargo source on the return trip. Alternatively, two transport boxes 100 can be nested and loaded into a standard container for transportation back (such as Fig.13 The transport box 100 of this design is flexible in application, safe in loading and unloading, and has low return transportation cost.

[0097] Preferably, the upper transport frame 20 can be moved to a height of the transport box 100 that is less than 1.6 m, so that the transport boxes 100 can be stacked up and down during the return journey (e.g. Fig.11 As shown), it can be transported by rail, meets the railway height limit standard, and reduces the return transportation cost. For example, the upper transport frame 20 can be moved so that the transport box 100 can be used as a 1535mm half-height box or a 3100mm double-layer box. In addition, the single-layer height of the transport box 100 is less than 1.6m, the double-layer height is less than 3.2m, and the total weight of the double-layer transportation can reach 70T (such as transporting linear steel), reaching the maximum cargo capacity of the train, and the transportation efficiency is high. It can be understood that when two transport boxes 100 are stacked up and down, the upper and lower boxes can be connected by corner pieces and twist locks.

[0098] In some specific embodiments, the upper transport frame 20 can be moved up and down by telescopic columns. Figure 3As shown, the lower side frame 12 includes a first fixed column 12A, the lower end of which is fixedly connected to the base frame 11, and the upper side frame 22 includes a first movable column 22A, which is fixedly connected to the upper transport platform 21. The first movable column 22A is sleeved with the first fixed column 12A and can move relatively along the height direction D3. For example, the first fixed column 12A and the first movable column 22A extend along the height direction D3 of the transport box 100, the first movable column 22A is a columnar hollow structure, the first fixed column 12A at least partially penetrates into the cavity of the first movable column 22A, and can move relatively along the axial direction. Alternatively, the first fixed column 12A is a columnar hollow structure, the first movable column 22A at least partially penetrates into the cavity of the first fixed column 12A, and can move relatively along the axial direction.

[0099] In order to fix the height of the upper transport frame 20, the transport box 100 further includes a first fixing member 30A / 30B, which is used to penetrate the first fixed column 12A and the first movable column 22A. Accordingly, the first fixed column 12A and the first movable column 22A each have at least one first insertion hole 31A for the first fixing member 30A / 30B to penetrate. It can be understood that when the upper transport frame 20 moves to a preset height, the at least one first insertion hole 31A of the first fixed column 12A and the at least one first insertion hole 31A of the first movable column 22A are aligned.

[0100] Preferably, at least one of the first fixed column 12A and the first movable column 22A is provided with at least two first plug holes 31 spaced apart along the height direction D3, so that the upper transport frame 20 can be fixed to different heights. More preferably, two first plug holes 31 are provided at the same height, so that the force is more balanced. There is no limitation on the number of first plug holes 31A at different heights and the number of first plug holes 31A at the same height.

[0101] Alternatively, if Figure 2 and Figure 3 As shown, the first insertion hole 31A is a through hole along the width direction D2, and the first fixing member 30A penetrates along the width direction D2. Figure 7 and Fig.10 As shown, the first insertion hole 31A is a through hole along the length direction D1, and the first fixing member 30B is inserted along the length direction D1. The first fixing member 30A / 30B is, for example, a pluggable pin.

[0102] After the upper transport frame 20 is lifted to the required height by a forklift or a lifting tool, the first fixing member 30A fixes the first movable column 22A and the first fixed column 12A, and the height of the upper transport frame 20 is fixed. When the height of the upper transport frame 20 is lowered, the fixing of the first fixing member 30A is released, and the upper transport frame 20 is lowered by a forklift, for example, to the lowest position, and the first movable column 22A and the first fixed column 12A are fixed by the first fixing member 30A. In addition, the upper transport platform 21 can be provided with a hook 28, so that the upper transport platform 21 can also be hoisted by non-dedicated lifting tools such as a gantry.

[0103] To stabilize the support of the upper transport frame 20 , first fixed columns 12A are disposed on both sides of the base frame 11 along the width direction D2 of the transport box 100 , and at least two first fixed columns 12A on each side are spaced apart along the length direction D1 of the transport box 100 .

[0104] The upper side frame 22 further includes a second fixed column 22C and a second movable column 22D. The second fixed column 22C is fixed to the upper transport platform 21, the second movable column 22D is sleeved with the second fixed column 22C and can move relatively along the height direction D3, and the top of the second movable column 22D is provided with a top corner piece 27, and the top corner piece 27 has a corner piece hole.

[0105] The top corner piece 27 at the top of the second movable column 22D facilitates the lifting and stacking of the transport box 100, making the transport box 100 suitable for sea-land transport. Preferably, the spacing of the top corner piece 27 in the length direction D1 and the width direction D2 of the transport box 100 conforms to the top corner piece spacing of the international standard transport box, and is adapted to standard lifting tools. The second fixed column 22C and the second movable column 22D make the height of the top of the transport box 100 adjustable. For example, in railway transportation, when passing through a tunnel, the second movable column 22D is adjusted to make the height of the transport box 100 meet the height limit; when lifting the transport box 100, the second movable column 22D is adjusted up to a top surface higher than the upper surface of the goods, so as to facilitate the lifting of the transport box 100.

[0106] In order to fix the height of the second movable column 22D, the transport box 100 also includes a second fixing member 23A / 23B for penetrating the second movable column 22D and the second fixed column 22C. Correspondingly, the second fixed column 22C and the second movable column 22D respectively have at least one second plug hole 31B for the second fixing member 23A / 23B to penetrate. When the second movable column 22D is adjusted to a preset height, at least one second plug hole 31B of the second fixed column 22C is aligned with at least one second plug hole 31B of the second movable column 22D, and the second fixing member 23A / 23B penetrates the second plug hole 31B to fix the second movable column 22D to the second fixed column 22C. Preferably, at least one of the second fixed column 22C and the second movable column 22D is provided with at least two second plug holes 31B at intervals along the height direction D3, so that the second movable column 22D can be adjusted to different heights. More preferably, two second plug holes 31B are provided at the same height, and the force is more balanced. There is no limitation on the number of second plugging holes 31B at different heights and the number of second plugging holes 31B at the same height.

[0107] Alternatively, if Figure 3 As shown, the second insertion hole 31B is a through hole along the width direction D2, and the second fixing member 23A penetrates along the width direction D2. Figure 7 and Fig.10 As shown, the second insertion hole 31B is a through hole along the length direction D1, and the second fixing member 23B penetrates along the length direction D1. The second fixing member 23A / 23B is, for example, a pluggable pin.

[0108] With such a design, the first fixed column 12A and the first movable column 22A can realize various height adjustments of the lower transport space, and the second fixed column 22C and the second movable column 22D can realize various height adjustments of the upper transport space. Through the adjustment of the two groups of columns, various height distributions of the upper and lower spaces of the box body are realized, and the total height of the box body meets the railway transport limit requirements.

[0109] like Figure 7 As shown, the transport box 100 also includes a rope 40, and the rope 40 is used to control the up and down movement of the second movable column 22D. Specifically, the second fixed column 22C is provided with a fixed rope ring 41, and the second movable column 22D is provided with a movable rope ring 42, the fixed rope ring 41 is located above the movable rope ring 42, one end of the rope 40 is connected to the movable rope ring 42, and the other end of the rope 40 passes through the fixed rope ring 41. Therefore, pulling the rope 40 can pull the second movable column 22D upward, and releasing the rope 40 can control the second movable column 22D to move downward under the action of its own gravity. Personnel can control the up and down movement of the second movable column 22D at a lower position through the rope 40, which is easy to operate and saves time and effort.

[0110] Specifically, one of the second fixed column 22C and the second movable column 22D located at the outer layer is provided with a slide groove 43, so that the rope 40 can be connected to the rope ring and pull the rope ring. For example, when the second fixed column 22C is sleeved on the outer layer of the second movable column 22D, the second fixed column 22C is provided with a slide groove 43 along the height direction D3, the fixed rope ring 41 is located above the slide groove 43, and the movable rope ring 42 moves in the slide groove 43. Alternatively, when the second movable column 22D is sleeved on the outer layer of the second fixed column 22C, the second movable column 22D is provided with a slide groove 43 along the height direction D3, the movable rope ring 42 is located below the slide groove 43, and the fixed rope ring 41 moves relative to the movable rope ring 42 in the slide groove 43.

[0111] The transport box 100 is also provided with a guide rope ring 44 for guiding the extension direction of the rope 40. The extension direction of the rope 40 can be changed after passing through the guide rope ring 44. The other end of the rope 40 is connected to the lower transport frame 10 or the upper transport platform 21 through a rope tightening device, and the rope 40 is pulled and released through the rope tightening device. The rope tightening device is, for example, a ratchet tightener.

[0112] In some specific embodiments, the spacing of the top corner fittings 27 in the length direction D1 and the width direction D2 of the transport box 100 conforms to the top corner fitting spacing of the international standard transport box. At the same time, the first movable column 22A is fixedly connected to the second fixed column 22C. Figure 1 As shown, the two first movable columns 22A are respectively located on both sides of a second fixed column 22C along the length direction D1 and are fixedly connected to the second fixed column 22C. Thus, the supporting points of the lower transport frame 10 for the upper transport frame 20 are reasonably distributed and the support is stable.

[0113] In some specific embodiments, the lower side frame 12 further includes a third fixed column 12B, the lower end of which is fixedly connected to the base frame 11, and the upper side frame 22 includes a third movable column 22B, which is fixedly connected to the upper transport platform 21. The third movable column 22B is sleeved with the third fixed column 12B and can move relatively along the height direction D3. When the third movable column 22B moves to a predetermined position relative to the third fixed column 12B, the third movable column 22B exerts an upward pulling force on the third fixed column 12B. The predetermined position, for example, after the upper transport platform 21 is lifted to a predetermined height, when the first fixing member 30A fixes the first movable column 22A to the first fixed column 12A, the position of the third movable column 22B relative to the third fixed column 12B.

[0114] It should be noted that the sleeve connection between the third movable column 22B and the third fixed column 12B includes the sleeve connection in which the third movable column 22B is located at the outer layer and the third fixed column 12B is located at the inner layer, and also includes the sleeve connection in which the third fixed column 12B is located at the outer layer and the third movable column 22B is located at the inner layer. Figure 4 As shown, the third movable column 22B is a hollow structure, and is sleeved on the outer side of the third fixed column 12B.

[0115] Specifically, in order to realize the pulling force of the third movable column 22B on the third fixed column 12B at a predetermined position, as shown in FIG. Figures 4 to 6 As shown, one of the third fixed column 12B and the third movable column 22B located in the inner layer is provided with a protrusion 32 protruding outward on the outer periphery, and one of the third fixed column 12B and the third movable column 22B located in the outer layer is provided with a third fixing piece. At a predetermined position of the third movable column 22B relative to the third fixed column 12B, the third fixing piece abuts against the protrusion 32 to prevent the third fixed column 12B from moving downward relative to the third movable column 22B.

[0116] The protrusion 32 is a protrusion protruding outward from the side wall of the third fixed column 12B or the third movable column 22B, and can surround the side wall or be partially provided with a protrusion. The protrusion 32 can be an integral component with the third fixed column 12B or the third movable column 22B, and can be a component fixedly connected to the outer periphery of the third fixed column 12B or the third movable column 22B.

[0117] Alternatively, if Figure 4 and Figure 5 As shown, the third fixing member is a spring pin 33A. When the third movable column 22B is at a first predetermined position relative to the third fixed column 12B, the spring pin 33A passes through one of the third fixed column 12B and the third movable column 22B located at the outer layer, and abuts against the protrusion 32. The first predetermined position is not limited to one. In other words, the protrusion 32 can be provided with one, two or more protrusions at intervals along the height direction D3. The spring pin 33A can be provided with one, two or more spring pins along the height direction D3.

[0118] For example, the outer side of the third fixed column 12B is provided with a protrusion 32, the third movable column 22B is sleeved on the outer side of the protrusion 32 of the third fixed column 12B, and the third movable column 22B is provided with a spring pin 33A. The latch of the spring pin 33A is in the retracted position, and the third movable column 22B can move up and down. The third movable column 22B moves to the first predetermined position relative to the third fixed column 12B, and the latch of the spring pin 33A pops out and abuts against the lower surface of the protrusion 32. Therefore, the spring pin 33A can exert an upward force on the protrusion 32, that is, the third movable column 22B can exert an upward force on the third fixed column 12B.

[0119] Alternatively, if Figure 4 and Figure 6 As shown, the third fixing member is an end plate 33B with an opening, and the end plate 33B is fixedly connected to the end of one of the third fixed column 12B and the third movable column 22B located in the outer layer. When the third movable column 22B is at a second predetermined position relative to the third fixed column 12B, the end plate 33B abuts the protrusion 32.

[0120] It can be understood that the third fixed column 12B or the third movable column 22B located in the outer layer is constructed as a hollow column, the protrusion 32 can be accommodated in the hollow part, and the size of the opening of the end plate 33B is set to allow the part of the third fixed column 12B or the third movable column 22B without the protrusion 32 to pass through, but the protrusion 32 cannot pass through.

[0121] For example, the outer side of the third fixed column 12B is provided with a protrusion 32, and the third movable column 22B is sleeved on the outer side of the protrusion 32 of the third fixed column 12B. The lower end of the third movable column 22B is fixedly connected with an end plate 33B, and when the third movable column 22B moves upward to the second predetermined position, the upper surface of the end plate 33B abuts against the lower surface of the protrusion 32. Therefore, the end plate 33B can exert an upward force on the protrusion 32, that is, the third movable column 22B can exert an upward force on the third fixed column 12B.

[0122] In some specific embodiments, the end plate 33B and the spring pin 33A can be provided at the same time, and the first predetermined position is different from the second predetermined position. In the first predetermined position, the third movable column 22B does not move to the point where the end plate 33B abuts against the protrusion 32 .

[0123] In the length direction D1, the third fixed column 12B can be located between the two first fixed columns 12A to prevent the middle of the bottom frame 11 from sinking and bending due to excessive load. In addition, the third fixed column 12B can also be located at both ends of the transport box 100 along the length direction D1, such as the four corners of the bottom frame 11. The third fixed column 12B and the third movable column 22B can also prevent the upper transport frame 20 from separating from the lower transport frame 10 during the upward movement.

[0124] It should be noted that the number of the third fixed columns 12B disposed between the two first fixed columns 12A is not limited and may be one, two or more. Figure 1 As shown, in the middle of the transport box 100 along the length direction D1, three third fixing columns 12B are arranged between two first fixing columns 12A on the same side.

[0125] like Figure 1 and Fig.10As shown, in order to ensure the stability of the upper transport frame 20, the transport box 100 also includes a connecting column 50 and a fixing device 51. The connecting column 50 is arranged on at least one side of the width direction D2 of the transport box 100, and the two ends of the connecting column 50 are pivotally connected to the upper transport frame 20 and the bottom frame 11 respectively, and the lower end of the connecting column 50 can slide along the length direction D1 of the transport box 100. That is, the connection position of the upper end of the connecting column 50 and the upper transport frame 20 remains unchanged, the connecting column 50 pivots during the up and down movement of the upper transport frame 20, and the lower end slides along the length direction D1 of the transport box 100. After the upper transport frame 20 moves into place, the lower end of the connecting column 50 is fixed to the bottom frame 11 by the fixing device 51. The connecting column 50 can make the up and down movement process of the upper transport frame 20 more stable, and also has a supporting effect after the movement is completed. The fixing device 51 is, for example, a pin and a hinge plate fixed to the base frame 11, and the connecting column 50 is fixed to the base frame 11 by inserting the pin into the hinge plate and the hole at the lower end of the connecting column 50. In some specific embodiments, at the lowest position of the upper transport frame 20, the third movable column 22B abuts against the base frame 11. At the same time, the third movable column 22B or the third fixed column 12B is provided with a limiter 34, which limits (prevents) the third movable column 22B from moving upward relative to the third fixed column 12B, the first fixing member 30A / 30B fixes the first movable column 22A, and the fixing device 51 fixes the connecting column 50. For example, the third movable column 22B is sleeved on the outside of the third fixed column 12B, and the third movable column 22B is provided with a spring pin. The position of the spring pin on the third movable column 22B is set to abut against the lower surface of the protrusion 32 of the third fixed column when the upper transport frame 20 is at the lowest position, so as to prevent the third movable column 22B from moving upward relative to the third fixed column 12B.

[0126] With such a design, when the upper transport frame 20 is at the lowest position, the transport box 100 is formed into an integral load-bearing structure with a double-layer bottom frame (upper transport platform and bottom frame) through the fixation of the first fixed column 12A and the first movable column 22A, the fixation of the third movable column 22B and the third fixed column 12B, and the fixation of the connecting column 50. That is, when the upper transport frame 20 is at the lowest position, the bottom frame 11 is unloaded, and through the connection between the bottom frame 11 and the upper transport platform 21, the bottom frame 11 and the upper transport platform 21 are connected to form an integral steel structure, thereby increasing the load-bearing capacity of the upper transport platform 21.

[0127] like Figure 1 and Figure 8As shown, the lower transport frame 10 includes bottom corner pieces 13, which are arranged on both sides of the bottom frame 11 along the width direction D2 of the transport box 100. Preferably, a plurality of bottom corner pieces 13 are arranged at intervals along the length direction D1 of the transport box 100. Multiple groups of bottom corner pieces 13 are arranged on the bottom frame 11, so that the transport box 100 can be suitable for connection with the locking device on the railway train and the road trailer.

[0128] Furthermore, if Fig. 9 As shown, the length of the corner fitting hole of the top corner fitting 27 and / or the bottom corner fitting 13 is the upper limit tolerance size of the standard corner fitting hole, which increases the movable amount of the transport box 100 when two transport boxes 100 are stacked up and transported, thereby cushioning the impact load on the box body and the vehicle.

[0129] like Figure 3 and Figure 7 As shown, the upper side frame 22 also includes an upper side beam 24, a lower side beam 25 and a connecting beam 26. The lower side beam 25 and the upper side beam 24 are both arranged along the length direction D1 of the transport box 100, and are fixedly connected to the first movable column 22A. The two lower side beams 25 are fixedly connected to the two sides of the upper transport platform 21, respectively. The upper side beam 24 is located above the lower side beam 25, and the two ends of the connecting beam 26 are respectively connected to the upper side beam 24 and the lower side beam 25, and the connecting beam 26 forms an angle with the height direction D3. Preferably, the two ends of the connecting beam 26 are respectively fixedly connected to the upper side beam 24 and the lower side beam 25. In other embodiments, the connecting beam 26 is configured as a corrugated plate (refer to Fig.12 ), which is convenient for the transportation of liquid bag cargo. The upper side frame 22 is a structure in which the upper side beam 24, the lower side beam 25, the connecting beam 26 and the first movable column 22A are assembled into one body. Therefore, the structure of the upper side frame 22 is stable and the connection with the upper transport platform 21 is firm.

[0130] According to the transport box of the present application, the height of the upper and lower transport spaces of the transport box and the total height of the box body can be adjusted by setting the first fixed column and the first movable column to be sleeved, and the second fixed column and the second movable column to be sleeved, in combination with multiple sockets of different heights. Through the height combination of the two groups of columns, a variety of height distributions between the upper and lower layers are achieved to meet the loading requirements of different types of goods, and at the same time, the total height of the box body meets the railway boundary size requirements. The transport box is a double-layer chassis structure, and the columns are fixed by fixing parts. The double-layer chassis can be combined into a whole, with high structural strength and strong bearing capacity.

[0131] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present application. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present application. The features described herein in one embodiment may be applied to another embodiment individually or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0132] The present application has been illustrated through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and explanation, and the present application is not limited to the above-mentioned embodiments. According to the teachings of the present application, more variations and modifications can be made, and these variations and modifications all fall within the scope of protection claimed by the present application.

Claims

1. A transport box, characterized in that: The transport box comprises: A lower transport frame, the lower transport frame comprising a base frame and a lower side frame, the lower side frame being fixedly connected to the base frame; an upper transport frame, the upper transport frame comprising an upper transport platform and an upper side frame, the upper side frame being fixedly connected to the upper transport platform, Wherein, the upper transport frame as a whole can move up and down along the height direction of the transport box.

2. The transport box according to claim 1, characterized in that: The lower side frame comprises a first fixed column, the lower end of which is fixedly connected to the base frame, and the upper side frame comprises a first movable column, which is fixedly connected to the upper transport platform. The first movable column is sleeved with the first fixed column and can move relatively along the height direction. The transport box also includes a first fixing member, which is used to penetrate the first fixed column and the first movable column to fix the height of the first movable column.

3. The transport box according to claim 2, characterized in that: The upper side frame includes a second fixed column and a second movable column, wherein the second fixed column is fixed to the upper transport platform. The second movable column is sleeved with the second fixed column and can move relatively along the height direction. The top of the second movable column is provided with a top corner piece. The transport box also includes a second fixing piece, which is used to penetrate the second movable column and the second fixed column to fix the second movable column.

4. The transport box according to claim 3, characterized in that: At least one of the first fixed column and the first movable column is provided with at least two first insertion holes spaced apart along the height direction, and the first insertion holes are used for the first fixing member to penetrate; and / or At least one of the second fixed column and the second movable column is provided with at least two second insertion holes spaced apart along the height direction, and the second insertion holes are used for the second fixing member to penetrate therein.

5. The transport box according to claim 2, characterized in that: The first fixed columns are arranged on both sides of the base frame along the width direction of the transport box, and at least two of the first fixed columns on each side are arranged at intervals along the length direction of the transport box.

6. The transport box according to claim 5, characterized in that: The lower side frame further comprises a third fixed column, the lower end of which is fixedly connected to the base frame, and the upper side frame further comprises a third movable column, which is fixedly connected to the upper transport platform. The third movable column is sleeved with the third fixed column and can move relatively along the height direction. The third movable column is arranged to exert an upward pulling force on the third fixed column at a predetermined position relative to the third fixed column.

7. The transport box according to claim 6, characterized in that: In the length direction, the third fixed column is located between the two first fixed columns; and / or The third fixing columns are located at two ends of the transport box along the length direction.

8. The transport box according to claim 7, characterized in that: The transport box also includes a connecting column and a fixing device. The connecting column is arranged on at least one side in the width direction of the transport box. Both ends of the connecting column are pivotally connected to the upper transport frame and the base frame respectively, and the lower end of the connecting column can slide along the length direction of the transport box. The fixing device is used to fix the lower end of the connecting column to the base frame.

9. The transport box according to claim 8, characterized in that: The third movable column is provided with a limit piece. At the lowest position of the upper transport frame, the third movable column abuts against the base frame. The limit piece limits the third movable column from moving upward relative to the third fixed column. The first fixing piece fixes the first movable column, and the fixing device fixes the connecting column.

10. The transport box according to claim 6, characterized in that: One of the third fixed column and the third movable column located in the inner layer is provided with a protruding portion protruding outward on the outer periphery, and one of the third fixed column and the third movable column located in the outer layer is provided with a third fixing piece, and at the predetermined position of the third movable column relative to the third fixed column, the third fixing piece abuts against the protruding portion to prevent the third fixed column from moving downward relative to the third movable column.

11. The transport box according to claim 10, characterized in that: The third fixing member is a spring pin. When the third movable column is at a first predetermined position relative to the third fixed column, the spring pin passes through the third fixed column and one of the third movable columns located at the outer layer and abuts against the protrusion.

12. The transport box according to claim 10, characterized in that: The third fixing member is an end plate with an opening, the end plate is fixedly connected to the end of one of the third fixed column and the third movable column located at the outer layer, and when the third movable column is at a second predetermined position relative to the third fixed column, the end plate abuts against the protrusion.

13. The transport box according to claim 3, characterized in that: The transport box also includes a rope, which is used to pull the second movable column upwards, the second fixed column is provided with a fixed rope ring, the second movable column is provided with a movable rope ring, the fixed rope ring is located above the movable rope ring, one end of the rope is connected to the movable rope ring, and the other end of the rope passes through the fixed rope ring.

14. The transport box according to claim 13, characterized in that: The second fixed column is provided with a slide groove along the height direction, the fixed rope ring is located above the slide groove, and the movable rope ring moves in the slide groove; or, The second movable column is provided with a slide groove along the height direction, the movable rope ring is located below the slide groove, and the fixed rope ring moves relative to the movable rope ring in the slide groove.

15. The transport box according to claim 14, characterized in that: The other end of the rope is connected to the lower transport frame or the upper transport platform via a rope tightening device; and / or The transport box is also provided with a guide rope ring for guiding the extending direction of the rope.

16. The transport box according to claim 3, characterized in that: The spacing between the top corner pieces of the second fixed column in the length direction and the width direction of the transport box meets international standards, and the first movable column is fixedly connected to the second fixed column.

17. The transport box according to claim 3, characterized in that: The lower transport frame includes bottom corner pieces, which are arranged on both sides of the base frame along the width direction of the transport box, and a plurality of the bottom corner pieces are arranged at intervals along the length direction of the transport box.

18. The transport box according to claim 3, characterized in that: The upper side frame also includes an upper side beam, a lower side beam and a connecting beam. The lower beam and the upper beam are both arranged along the length direction of the transport box and fixedly connected to the first movable column and the second fixed column; the lower beam is fixedly connected to both sides of the upper transport platform respectively; the upper beam is located above the lower beam, and both ends of the connecting beam are respectively connected to the upper beam and the lower beam.

19. The transport box according to any one of claims 1 to 18, characterized in that: The upper transport platform is provided with a hook for hoisting the upper transport platform; and / or The upper transport frame can be moved to a height of the transport box that is less than 1.6 m.

Images