Built-in cargo pallet and container having the same

Abstract

The present invention provides a built-in cargo pallet and a container having the same. A guide wheel device is provided on both sides of the front end of the pallet facing the side panels, and the pallet can move along the side panels in the container. The guide wheel device includes a plurality of guide wheels arranged in a line along the longitudinal direction of the pallet, wherein when the pallet moves in the container, at least one of the plurality of guide wheels is always located within the wave crest section of the side panels. The built-in cargo pallet provided by the present invention can load large cargo into the container, and the forklift operates outside the container, thereby solving the problem of packing large cargo. In addition, the guide wheels will not sink into the wave troughs of the side panels, thereby avoiding collisions between other parts of the pallet and the side panels, and preventing damage or cutting of the container side panels.

Description

Technical Field

[0001] The present invention relates to the technical field of containers, and more particularly to a built-in cargo pallet and a container having the same. Background Art

[0002] In order to conveniently load and unload goods into and out of containers, the goods are generally placed on a pallet first, and then the pallet is forked in and out of the container by a forklift. For goods of larger size and heavier weight, large pallets are often used to complete loading and unloading. However, since the side walls of general containers are made of corrugated plates, the front ends of the pallets on both sides are easily stuck and / or the guide wheels of the pallets are sunk into the corrugated plates of the container side walls when the pallets are loaded into the containers, and the loading cannot be completed, resulting in the front ends of the pallets on both sides and / or other parts of the pallets being very easy to hit or even cut the corrugated plates of the container side walls, thereby damaging the container.

[0003] Therefore, a built-in cargo pallet is needed to at least partially solve the problems existing in the prior art. Summary of the invention

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

[0005] According to a first aspect of the present invention, there is provided a built-in cargo pallet for use in a container, the container comprising side panels having a plurality of crests and a plurality of troughs extending in the longitudinal direction of the container, guide wheel devices are provided on both sides of the front end of the pallet facing the side panels, the pallet is capable of moving along the side panels in the container, the guide wheel device comprising a plurality of guide wheels arranged in a line in the longitudinal direction of the pallet.

[0006] Wherein, when the pallet is moving in the container, at least one guide wheel among the plurality of guide wheels is always located within the wave crest section of the side plate.

[0007] According to this solution, the pallet can be used to load large goods into the container, and the forklift is operated outside the container, which solves the problem of loading large goods. In addition, when the pallet moves in the container, the guide wheel will not sink into the trough of the side plate, avoiding collision between other parts of the pallet and the side plate, and preventing damage or cutting of the container side plate.

[0008] Preferably, the relationship between the crest and trough of the side plate of the present invention is λ2=nλ1; each of the guide wheel devices includes at least n+1 guide wheels; the distance between one of the n+1 guide wheels and another of the n+1 guide wheels is L n1 ; L n1 The satisfied relationship is:

[0009] L n1 =n1λ1+a n1 (λ1+λ2)±A.

[0010] Wherein, λ1 is the longitudinal span of the one crest part, λ2 is the longitudinal span of the one trough part, 1≤n1≤n, n1 and a n1 is an integer, and A is the wheel diameter associated adjustment value.

[0011] According to this solution, by setting the relationship between the guide wheel spacings, when one of the multiple guide wheels is moving from the crest section to the trough section, another guide wheel of the multiple guide wheels is moving from the trough section at the same or different position to the crest section, thereby ensuring that at least one of the multiple guide wheels on one side of the pallet is always located in the crest section of the side plate.

[0012] Preferably, when λ2≠nλ1, and λ2>λ1, the relationship between the crest and trough of the side plate of the present invention is n=int[λ2 / λ1]+1; each of the guide wheel devices includes at least n+1 guide wheels; the distance between one of the n+1 guide wheels and another of the n+1 guide wheels is L n1 ; L n1 The satisfied relationship is:

[0013] L n1 =n1λ1+a n1 (λ1+λ2)±A

[0014] Wherein, λ1 is the longitudinal span of the one crest part, λ2 is the longitudinal span of the one trough part, 1≤n1≤n, n1 and a n1 is an integer, and A is the wheel diameter associated adjustment value.

[0015] According to this solution, by setting the relationship between the guide wheel spacing, when one of the multiple guide wheels is moving from the crest section to the trough section, another guide wheel of the multiple guide wheels is moving on the crest section at a different position, thereby ensuring that at least one guide wheel among the multiple guide wheels on one side of the pallet is always located in the crest section of the side plate.

[0016] Preferably, the a n1is an integer ranging from 0 to 45. Thus, different positions of multiple guide wheels can be designed within a certain longitudinal length, thereby improving the freedom of design of the guide wheels.

[0017] Preferably, each of the guide wheel devices comprises at least 4 guide wheels. Thus, a more suitable longitudinal span of the crest and trough can be selected as the side plate of the container.

[0018] Preferably, the value range of A is 0 to 20 mm. Thus, the guide wheel spacing can be appropriately adjusted according to the wheel diameter of the guide wheel, so that the technical effect can be achieved when the guide wheel is offset to a certain position at the end of the wave crest, that is, the guide wheel can be guided so as not to sink into the wave trough.

[0019] Preferably, the distance between the guide wheel closest to the pallet among the plurality of guide wheels and the front end of the pallet is less than or equal to 600 mm, or one or more guide wheels among the plurality of guide wheels are located outside the front end of the pallet. Thus, the front end of the pallet can be prevented from colliding with the side panels during movement, thereby damaging or cutting the side panels.

[0020] Preferably, the wheel diameter of the guide wheel is in the range of 5 mm to 300 mm. Thus, the wheel diameter of the guide wheel can be set as required.

[0021] Preferably, the guide wheel device also includes a guide wheel support for mounting the guide wheel device to the tray and a plurality of guide wheel shafts for the guide wheel to pass through and pivot, the guide wheel support is an integrally formed U-shaped structure, including upper and lower side wings; the two ends of the guide wheel shaft are connected to the two side wings of the guide wheel support; wherein, the distance between the outer edge of the guide wheel facing the side plate and the outer edge of the side wing of the guide wheel support facing the side plate is greater than 2 mm.

[0022] According to this solution, it is possible to prevent the guide wheel support from colliding with the side plate during movement, thereby damaging or cutting the side plate.

[0023] According to a second aspect of the present invention, there is provided a container, comprising a side plate having a plurality of crests and a plurality of troughs extending in the longitudinal direction of the container, and a built-in cargo pallet according to any one of the above technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show embodiments of the present invention and their descriptions, and are used to explain the device and principle of the present invention. In the drawings,

[0025] Figure 1 A front view of the built-in cargo tray of the present invention;

[0026] Figure 2 for Figure 1 A top view of the built-in cargo pallet in the;

[0027] Figure 3 for Figure 1 A front view of the guide wheel device in FIG.

[0028] Figure 4 for Figure 3 a cross-sectional view along line BB;

[0029] Figure 5 is a schematic diagram of the guide wheel device in use;

[0030] Figure 6 A schematic diagram of the position of a guide wheel according to a preferred embodiment of the present invention;

[0031] Figure 7 A schematic diagram of the arrangement of a guide wheel according to a first preferred embodiment of the present invention;

[0032] Figure 8 A schematic diagram of the arrangement of a guide wheel according to a second preferred embodiment of the present invention;

[0033] Fig. 9 A schematic diagram of the arrangement of a guide wheel according to a third preferred embodiment of the present invention;

[0034] Fig.10 A schematic diagram of the arrangement of a guide wheel according to a fourth preferred embodiment of the present invention; and

[0035] Fig.11 It is a schematic diagram of the arrangement of the guide wheel according to the fifth preferred embodiment of the present invention.

[0036] Figure ID

[0037] 1. Tray 2. Guide wheel device

[0038] 21. Guide wheel 22. Guide wheel support

[0039] 23. Guide wheel shaft 24. Side wing

[0040] 25. Mounting hole 26. Split pin

[0041] 27, pin hole 3, side plate

[0042] 31. Peak 32. Trough

[0043] 33. Connecting part 4. First guide wheel

[0044] 5. Second guide wheel 6. Third guide wheel

[0045] 7. Fourth guide wheel AR1, wave crest section

[0046] AR2, trough interval DETAILED DESCRIPTION

[0047] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0048] In order to fully understand the present invention, a detailed structure will be presented in the following description to illustrate the present invention. Obviously, the implementation of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments and should not be construed as being limited to the embodiments presented here.

[0049] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention. The singular forms "a", "an", and "said / the" are also intended to include plural forms unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof. The terms "upper", "lower", "front", "back", "left", "right" and similar expressions used in the present invention are for illustrative purposes only and are not limiting.

[0050] Ordinal numbers such as "first" and "second" cited in the present invention 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".

[0051] Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the present invention and do not limit the present invention.

[0052] In this document, the term "longitudinal" refers to the length of the container.

[0053] like Figure 1 and Figure 2 As shown, the present invention provides a built-in cargo pallet 1 for transporting cargo to the interior of a container.

[0054] The pallet 1 is a rectangular structure laid flat in the longitudinal direction, and the length of the pallet 1 is less than the inner length of the container. If necessary, the length of the pallet 1 can be set to be roughly close to the inner length of the container. The width of the pallet 1 is less than or roughly close to the inner width of the container. In order to prevent the pallet 1 from damaging or even cutting the side panels 3 of the container during movement, the pallet 1 is provided with guide wheel devices 2 at the front end facing both sides of the side panels 3, so that the pallet 1 moves along the side panels 3 in the container.

[0055] like Figure 3 and Figure 4 As shown, the guide wheel device 2 includes a plurality of guide wheels 21 arranged in a line along the longitudinal direction, a guide wheel support 22 for mounting the guide wheel device 2 to the tray 1, and a plurality of guide wheel shafts 23. The guide wheel 21 is fixed to the guide wheel support 22 through the guide wheel shaft 23, and the guide wheel 21 can rotate freely around the guide wheel shaft 23. Preferably, the guide wheel support 22 is an integrally formed U-shaped structure, and includes upper and lower side wings 24, and the two ends of the guide wheel shaft 23 are fixed to the side wings 24 of the guide wheel support 22. The guide wheel support 22 shown in the figure is a C-shaped steel.

[0056] Furthermore, both side wings 24 of the guide wheel support 22 are provided with mounting holes 25. One end of the guide wheel shaft 23 passes through the mounting hole 25 and is engaged with one side wing 24, and the other end passes through the other side wing 24 and is fixed by inserting a cotter pin 26 into a pin hole 27 on the guide wheel shaft 23.

[0057] In order to prevent the front end of the pallet 1 from damaging or cutting the side panels 3, preferably, the plurality of guide wheels 21 are located inside the front end of the pallet 1, and the distance S1 between the guide wheel 21 closest to the front end of the pallet among the plurality of guide wheels 21 and the front end of the pallet 1 does not exceed 600 mm. Alternatively, preferably, one or more of the plurality of guide wheels 21 are located outside the front end of the pallet 1, and the other guide wheels among the plurality of guide wheels 21 are located inside the front end of the pallet 1.

[0058] In order to prevent the guide wheel support 22 from damaging or cutting the side plate 3 due to being too close to the side plate 3 during the movement of the tray 1, preferably, Figure 5 As shown, the distance S2 of the guide wheel 21 beyond the outer edge of the side wing 24 of the guide wheel support 22 is greater than 2mm. Specifically, the distance S2 of the side of the guide wheel 21 contacting the side plate 3 beyond the outer edge of the side wing 24 of the guide wheel support 22 close to the side plate 3 is greater than 2mm.

[0059] Reference Figure 5In the present invention, the container side plate 3 is a corrugated plate having a plurality of identical crests 31 and a plurality of troughs 32 extending in the longitudinal direction of the container, and adjacent crests 31 and troughs 32 are connected via a connecting portion 33. Herein, "λ1" is used to represent the longitudinal span of a crest, and "λ2" is used to represent the longitudinal span of a trough. It should be noted that, in order to facilitate the description of the following technical solution, the "connecting portion" is cited, which is intended to refer to the two ends of the crest along the longitudinal direction.

[0060] The present invention takes into account that, since the contact mode between the guide wheel 21 and the side plate 3 is linear contact, when the contact point between the guide wheel 21 and the side plate 3 is located on the crest portion 31, the guide wheel 21 can work normally. When the contact point between the guide wheel 21 and the side plate 3 is not on the crest portion 31, the guide wheel 21 will sink into the trough portion 32, and the guide wheel 21 may fail to contact the side plate 3, causing the guide wheel support 22 to collide with the side plate 3, thereby damaging the side plate 3.

[0061] Alternatively, the diameter of the guide wheel 21 is large enough to contact the trough portion 32 of the side plate 3 , but the squeezing force exerted on the side plate 3 during the process of moving from the trough portion 32 to the peak portion 31 is large, thereby causing damage to the side plate 3 .

[0062] Furthermore, since the corrugated structure of the common side panel 3 is repeated, a single guide wheel 21 cannot avoid sinking into the trough 32 of the side panel 3. If multiple guide wheels 21 are grouped, for example three, and the spacing between the three guide wheels 21 is smaller than the longitudinal span of the trough 32, the three guide wheels 21 will sink into the trough 32 at the same time, and the side panel 3 will also be damaged.

[0063] In order to prevent the guide wheel device 2 from damaging the side plate 3 in the above situation, the present invention sets the spacing, number and wheel diameter of the guide wheels 21 according to the longitudinal span of the crest 31 and the trough 32 of the two side plates 3 of the container, so that when the pallet 1 moves in the container, at least one guide wheel 21 among the multiple guide wheels 21 on one side of the pallet 1 is always located in the crest section AR1 ( Figure 5 ) The other guide wheels among the plurality of guide wheels 21 are located in the trough section AR2 ( Figure 5 Furthermore, during the movement of the tray, the guide wheel 21 located in the peak section AR1 may abut against the peak or an area adjacent to the peak.

[0064] That is, when one guide wheel is located in the crest section of the side plate, the other guide wheels may be in the crest section or the trough section, but at least, when the guide wheel located in the crest section moves out of the crest section during the movement of the pallet, at least one of the other guide wheels is located in the other crest section, so as to ensure that the pallet can move in the corrugated container side plate without damaging the side plate.

[0065] It should be noted that the "peak section" in this article refers to the area inside the container directly above the peak surface, and the "trough section" refers to the area inside the container directly above the trough surface. The guide wheel is located in the peak section, which means that the central axis of the guide wheel is located in the peak section. It should be understood that "directly above" is defined relative to the width direction of the container.

[0066] Please refer to the attached Figures 6 to 11 The multiple guide wheels 21 on one side of the tray 1 are described. The figure shows that the multiple guide wheels are located in the peak section or the trough section, and the guide wheels located in the peak section are in contact with the peak section.

[0067] When the longitudinal span of the crest portion 31 is an integer multiple of the longitudinal span of the trough portion 32 , the relationship between the crest portion 31 and the trough portion 32 can be expressed as λ2=nλ1.

[0068] At this time, each guide wheel device 2 needs to include at least n+1 guide wheels 21. When the number of guide wheels 21 is n+1, considering that the crests 31 and troughs 32 of the side panels 3 of the container are repeated continuously, taking the first guide wheel 4 at the edge of the guide wheel device 2 as a reference, the spacing L between the first guide wheel 4 and the remaining guide wheels is as follows:

[0069] L1=λ1+a1(λ1+λ2)±A, 0≤a1≤45;

[0070] L2=2λ1+a2(λ1+λ2)±A, 0≤a2≤45;

[0071] L3=3λ1+a3(λ1+λ2)±A, 0≤a3≤45;

[0072] …

[0073] L n =nλ1+a n (λ1+λ2)±A, 0≤a n ≤45.

[0074] The above relationship can be further understood as follows: when the first guide wheel 4 located at the edge of the guide wheel device 2 is at one of the connecting parts 33 of the crest part 31 and the trough part 32, and moves from the crest part 31 to the trough part 32, the distance between the first guide wheel 4 and the first guide wheel 4 is L n =nλ1+a nThe n+1th guide wheel (not shown) of (λ1+λ2)±A is located at another connection part among the multiple connection parts 33, and moves from the trough part 32 there to the crest part 31 there. During the process of the first guide wheel 4 moving in the air directly above the trough part 32, for every movement of a distance of λ1, there will be a guide wheel located at a connection part among the multiple connection parts 33 between the crest part 31 and the trough part 32, and moves from the trough part 32 there to the crest part 31 there.

[0075] Specifically, during the process that the first guide wheel 4 moves in the air directly above the trough portion 32, the n+1 guide wheel (not shown) and the n-1 guide wheel (with a distance L from the first guide wheel 4) are moved in the air. n-1 =(n-1)λ1+a n-1 (λ1+λ2)±A) (not shown), ... to the second guide wheel 5 (the distance between the second guide wheel 5 and the first guide wheel 4 is L1=λ1+a1(λ1+λ2)±A) and moves on the same or different crests 31 in sequence, so that when the pallet 1 moves in the container, there is always one guide wheel among the multiple guide wheels 21 located in the crest section AR1 of the side plate 3.

[0076] It should be noted that a1, a2, a3, ... and a n They are independent of each other, and the values ​​can be the same or different. The "first, second, ..., n-1, n" here are just identifiers and do not indicate the positional relationship of the front and back order of the guide wheels.

[0077] When the number of guide wheels is greater than n+1, the positions of the remaining guide wheels except n+1 can be set arbitrarily so that when the pallet 1 moves in the container, at least one guide wheel 21 among the multiple guide wheels 21 is always located in the peak section AR1 of the side plate 3.

[0078] Therefore, the present invention sets the distance between one of the n+1 guide wheels 21 and another of the n+1 guide wheels to be L. n1 ; then L n1 The relationship that needs to be satisfied is:

[0079] L n1 =n1λ1+a n1 (λ1+λ2)±A, 0≤a n1 ≤45.

[0080] Here, n1λ1 means that the distance between the two guide wheels must be an integer multiple of λ1, and 1≤n1≤n. n1 (λ1+λ2) indicates that the other part of the distance between the two guide wheels must be an integer multiple of λ1+λ2. A is the wheel diameter correlation adjustment value.

[0081] It should be noted that the spacing of the guide wheels 21 refers to the distance between the guide wheel shafts 23 of the two guide wheels 21. The "wheel diameter associated adjustment value" means that when the guide wheel 21 moves to the connection portion 33 between the crest portion 31 and the trough portion 32, the spacing between the two adjacent guide wheels 21 can be appropriately adjusted according to the wheel diameter of the guide wheel 21, so that the guide wheel 21 can be guided so as not to sink into the trough portion 32 even if the guide wheel 21 is offset to a certain position at the connection portion 33. n1 " is an integer value set according to the number of corrugations of the side panel 3, that is, the number of single waves formed by a crest portion 31 and a trough portion 32. When the length of the pallet 1 is roughly close to the inner length of the container, the number of corrugations of the side panel 3 can usually be 45. Therefore, in this paper, n1 Preferably 0≤a n1 An integer between ≤45.

[0082] The value range of λ1 of the present invention is preferably 50-90 mm, the value range of the wheel diameter d of the guide wheel 21 is preferably 5 mm-300 mm, and the value range of A is preferably 0-20 mm.

[0083] To further understand the above relationship, Figure 6 As shown, λ1=70mm, λ2=210mm are selected, then n=3. At this time, each guide wheel device 2 needs to include at least 4 guide wheels 21, and 4 guide wheels are shown in the figure.

[0084] Taking the first guide wheel 4 as a reference, the distances from the first guide wheel 4 to the second guide wheel 5, the third guide wheel 6 and the fourth guide wheel 7 are respectively:

[0085] L1=70+a1×280±A, L2=140+a2×280±A and L3=210+a3×280±A.

[0086] The first preferred embodiment is as follows: a1=1, a2=0, a3=1, d=80 mm, and A=0.

[0087] Then L1=350mm,L2=140mm,L3=490mm,and the position relationship of the four guide wheels is as follows: Figure 7 shown.

[0088] The second preferred embodiment is as follows: a1=1, a2=2, a3=3, d=300 mm, and A=0.

[0089] Then L1=350mm,L2=700mm,L3=1050mm,the position relationship of the four guide wheels is as follows Figure 8 This preferred embodiment shows a situation when the wheel diameter of the guide wheel 21 takes the maximum value. As the wheel diameter increases, the spacing between adjacent guide wheels 21 must be greater than the wheel diameter of the guide wheel 21, otherwise the adjacent guide wheels 21 will touch each other.

[0090] The third preferred embodiment is as follows: a1=0, a2=0, a3=0, d=5 mm, and A=0.

[0091] Then L1=70mm, L2=140mm, L3=210mm, and the position relationship of the four guide wheels is as follows: Fig. 9 This preferred embodiment shows a situation when the wheel diameter of the guide wheel 21 takes the minimum value.

[0092] The fourth preferred embodiment is as follows: a1=1, a2=0, a3=1, d=80 mm, and A=20.

[0093] Then L1=350mm,L2=140mm,L3=490+20=510mm,the position relationship of the four guide wheels is as follows Fig.10 This preferred embodiment shows that the fourth guide wheel 7 is located on the wave crest portion and can be offset by 20 mm from the connecting portion on the left side thereof.

[0094] The above four preferred embodiments can ensure that during the movement of the pallet, there is always one guide wheel among the multiple guide wheels 21 located within the wave crest section AR1 of the side plate 3 .

[0095] When the longitudinal span of the crest portion is not an integer multiple of the longitudinal span of the trough portion, and λ2>λ1, the value of n must satisfy n=int[λ2 / λ1]+1.

[0096] Here, it should be noted that this paper introduces the rounding function int, which is intended to limit the value of n to be the integer value after λ2 is divided by λ1 without rounding plus 1.

[0097] At this time, each guide wheel device 2 needs to include at least n+1 guide wheels. When there are n+1 guide wheels, considering that the crests 31 and troughs 32 of the side panels 3 of the container are repeated continuously, taking the first guide wheel 4 at the edge of the guide wheel device 2 as a reference, the spacing L between the first guide wheel 4 and the remaining guide wheels is as follows:

[0098] L1=λ1+a1(λ1+λ2)±A, 0≤a1≤45;

[0099] L2=2λ1+a2(λ1+λ2)±A, 0≤a2≤45;

[0100] L3=3λ1+a3(λ1+λ2)±A, 0≤a3≤45;

[0101] …

[0102] L n =nλ1+a n (λ1+λ2)±A, 0≤a n ≤45.

[0103] The above relationship can be further understood as follows: when the first guide wheel 4 located at the edge of the guide wheel device 2 is at one of the connecting parts 33 of the peak part 31 and the trough part 32, and moves from the peak part 31 to the trough part 32, the distance between the first guide wheel 4 and the first guide wheel 4 is L n =nλ1+a n The n+1th guide wheel (not shown) of (λ1+λ2)±A is already at another crest of the plurality of crests 31 and moves on the crest 31. During the process of the first guide wheel 4 moving in midair just above the trough 32, for every movement of a distance of λ1, one guide wheel 21 is at a crest of the plurality of crests 31 and moves on the crest.

[0104] Specifically, during the process that the first guide wheel 4 moves in the air directly above the trough portion 32, the n+1 guide wheel (not shown) and the n-1 guide wheel (with a distance L from the first guide wheel 4) are moved in the air. n-1 =(n-1)λ1+a n-1 (λ1+λ2)±A) (not shown), ... to the second guide wheel 5 (the distance between the first guide wheel 4 and the first guide wheel 4 is L1=λ1+a1(λ1+λ2)±A) and moves on the same or different crests 31 in sequence, so that when the pallet 1 moves in the container, one of the multiple guide wheels 21 is always located in the crest interval AR1 of the side plate 3. As mentioned above, the "first, second, ..., n-1, n" here are only identifications and do not indicate the positional relationship of the front and rear order of each guide wheel.

[0105] When the number of guide wheels 21 is greater than n+1, the positions of the remaining guide wheels except n+1 can be set arbitrarily so that when the pallet 1 moves in the container, at least one guide wheel among the multiple guide wheels 21 is always located in the peak section AR1 of the side plate 3.

[0106] Therefore, the present invention sets the distance between one of the n+1 guide wheels 21 and another of the n+1 guide wheels to be L. n1 ; then L n1 The relationship that needs to be satisfied is:

[0107] L n1 =n1λ1+a n1 (λ1+λ2)±A, 0≤a n1 ≤45.

[0108] It should be noted that, when the longitudinal span of the crest portion 31 is not an integer multiple of the longitudinal span of the trough portion 32, compared with the case where the longitudinal span of the crest portion 31 is an integer multiple of the longitudinal span of the trough portion 32, the difference lies in the different way of taking the value of n, while the way of taking the value of the number of guide wheels 21 and the relationship between the spacing L of the guide wheels 21 are the same as described above, and the definition and value range of each parameter are also the same, which will not be repeated here.

[0109] To further understand the above relationship, Fig.11 In the fifth preferred embodiment shown, λ1=70mm, λ2=200mm are selected, then n=int[200 / 70]+1=3. At this time, each guide wheel device 2 needs to include at least 4 guide wheels. When there are 4 guide wheels.

[0110] Taking the first guide wheel 4 as a reference, the distances from the first guide wheel 4 to the second guide wheel 5, the third guide wheel 6 and the fourth guide wheel 7 are respectively:

[0111] L1=70+a1×280±A, L2=140+a2×280±A and L3=210+a3×280±A.

[0112] The fifth preferred embodiment is as follows: a1=1, a2=0, a3=1, d=80 mm, and A=0.

[0113] Then L1=350mm,L2=140mm,L3=490mm,and the position relationship of the four guide wheels is as follows: Fig.10 shown.

[0114] The fifth preferred embodiment can ensure that during the movement of the tray 1 , one of the plurality of guide wheels 21 is always located within the wave crest section AR1 of the side plate 3 .

[0115] It should be noted that the present invention is based on the corrugated plate commonly used for the side plate. Based on the fact that the longitudinal span of the trough portion is generally greater than the longitudinal span of the crest portion (i.e., λ2>λ1), the structure of the multiple guide wheels of the guide wheel device is designed. If the longitudinal span of the trough portion of the side plate is smaller than the longitudinal span of the crest portion, each guide wheel device 2 needs to include at least two guide wheels.

[0116] When there are two guide wheels, the distance L between the two guide wheels must satisfy the following requirement: L is greater than λ2+a(λ1+λ2)±A, and L is less than (a+1)(λ1+λ2)±A.

[0117] When there are more than two guide wheels, the positions of the other guide wheels except the two guide wheels can be set arbitrarily, so that during the movement of the pallet, at least one guide wheel among the multiple guide wheels is always located in the wave peak section.

[0118] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "parts" and "pieces" appearing in this article may represent either a single part or a combination of multiple parts. Terms such as "installation" and "setting" appearing in this article may represent either a component being directly attached to another component or a component being attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0119] The present invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A built-in cargo pallet for a container, the container comprising a side plate having a plurality of crests and a plurality of troughs extending in the longitudinal direction of the container, characterized in that: A guide wheel device is provided on both sides of the front end of the built-in cargo pallet facing the side panels, and the built-in cargo pallet can move along the side panels in the container. The guide wheel device includes a plurality of guide wheels arranged in a line along the longitudinal direction of the built-in cargo pallet. Wherein, when the built-in cargo pallet moves in the container, at least one of the plurality of guide wheels is always located within the wave crest section of the side plate. When λ2=nλ1, each of the guide wheel devices includes at least n+1 guide wheels; and The distance between one of the n+1 guide wheels and another of the n+1 guide wheels is L. n1 , then L n1 =n1λ1+a n1 (λ1+λ2)±A, Wherein, λ1 is the longitudinal span of one of the crests, λ2 is the longitudinal span of one of the troughs, 1≤n1≤n, n1 and a n1 is an integer, and A is the wheel diameter associated adjustment value; When λ2≠nλ1, and λ2>λ1, n=int[λ2 / λ1]+1; Each of the guide wheel devices comprises at least n+1 guide wheels; and The distance between one of the n+1 guide wheels and another of the n+1 guide wheels is L. n1 , then L n1 =n1λ1+a n1 (λ1+λ2)±A, Wherein, λ1 is the longitudinal span of one of the crests, λ2 is the longitudinal span of one of the troughs, 1≤n1≤n, n1 and a n1 is an integer, and A is the wheel diameter associated adjustment value.

2. The built-in cargo pallet according to claim 1, characterized in that: The n1 is an integer ranging from 0 to 45.

3. The built-in cargo pallet according to claim 1, characterized in that: Each of the guide wheel devices includes at least 4 guide wheels.

4. The built-in cargo pallet according to claim 1, characterized in that: The value range of A is 0~20mm.

5. The built-in cargo pallet according to claim 1, characterized in that: The distance between the guide wheel among the multiple guide wheels closest to the front end of the built-in cargo pallet and the front end of the built-in cargo pallet is less than or equal to 600 mm, or one or more guide wheels among the multiple guide wheels are located outside the front end of the built-in cargo pallet.

6. The built-in cargo pallet according to claim 1, characterized in that: The wheel diameter of the guide wheel ranges from 5mm to 300mm.

7. The built-in cargo pallet according to claim 3, characterized in that: The guide wheel device also includes: Mounting the guide wheel device to the guide wheel support of the built-in cargo pallet, wherein the guide wheel support is an integrally formed U-shaped structure including upper and lower side wings; and A plurality of guide wheel shafts for the guide wheel to pass through and pivot, with both ends of the guide wheel shafts connected to the two side wings of the guide wheel support member, Wherein, the distance that the guide wheel exceeds the outer edge of the side wing of the guide wheel support is greater than 2 mm.

8. A container, characterized in that: The invention comprises a side plate having a plurality of crest portions and a plurality of trough portions extending in the longitudinal direction of the container, and the built-in cargo pallet according to any one of claims 1 to 7.

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