An open top container

Abstract

The application discloses an open-top container, which comprises a box body and a fixing device. The top of the box body is provided with an opening; the box body comprises an end structure and a side structure, and the top of the end structure comprises a groove; the fixing device is used for fixing a tarpaulin covering the opening and comprises an end locking ring and a side locking ring; the end locking ring is arranged on the end structure and comprises a first end locking ring arranged on a first groove side wall of the groove at intervals in the width direction of the box body and a second end locking ring arranged on a groove bottom wall of the groove at intervals in the width direction; at least one second end locking ring is arranged between adjacent first end locking rings in the width direction, and the center distance L1 of adjacent end locking rings satisfies L1<=200mm; the side locking ring is arranged on the side structure and comprises a first side locking ring arranged at intervals in the length direction of the box body and a second side locking ring arranged at intervals in the length direction; at least one second side locking ring is arranged between adjacent first side locking rings in the length direction, and the center distance L2 of adjacent side locking rings satisfies L2<=300mm.

Description

Technical Field

[0001] This invention belongs to the field of container technology, and more specifically relates to an open-top container. Background Technology

[0002] An open-top container is a type of container with a completely open top and no roof. The standard open-top container's frame includes forklift slots, bottom crossbeams, and bottom side beams, with a steel floor. When using standard open-top containers to transport bulk cargo such as grain, coal, and ore, the open top poses risks: dust pollution from the cargo itself; cargo may fall during bumpy roads, endangering lives and property; and in rainy or snowy weather, bulk cargo may mold or spoil, or in dry weather, it may spontaneously combust. Furthermore, theft is also a concern.

[0003] To address the open-top issue, tarpaulins are now commonly used to create soft-top open-top containers. While the existing structure of the container body and tarpaulin, as well as the method of securing the tarpaulin to the body, generally meets domestic transportation needs, they do not meet the maritime transport requirements, specifically the tarpaulin securing method required by the TIR Convention (Transport International Router), thus hindering customs clearance for international transport.

[0004] To address these issues, the present invention provides an open-top container to at least partially solve the aforementioned problems. Summary of the Invention

[0005] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, the present invention provides an open-top container, comprising:

[0007] A housing, the housing having an opening at the top, and the housing including an end structure and a side structure, the top of the end structure including a groove, the groove including a bottom wall, a first side wall, and a second side wall, the first side wall being closer to the center of the opening than the second side wall; and

[0008] The fixing device, used to secure the tarpaulin covering the opening, includes end locking rings and side locking rings, wherein...

[0009] The end locking ring is disposed on the end structure and includes:

[0010] The first end locking ring is spaced apart on the side wall of the first groove along the width direction of the box body;

[0011] The second end locking ring is spaced apart on the bottom wall of the groove along the width direction, and at least one second end locking ring is provided between adjacent first end locking rings along the width direction. The center distance L1 between adjacent end locking rings satisfies: L1≤200mm.

[0012] The side locking ring is disposed on the side structure and includes:

[0013] The first side locking ring is spaced apart along the length direction of the housing;

[0014] The second side locking rings are spaced apart along the length direction, and at least one second side locking ring is provided between adjacent first side locking rings along the length direction. The center distance L2 between adjacent side locking rings satisfies: L2≤300mm.

[0015] According to the open-top container of the present invention, since the fixing device of the open-top container includes an end locking ring disposed on the end structure of the container body and a side locking ring disposed on the side structure of the container body, and the end locking ring includes a first end locking ring disposed on the first groove sidewall of the groove at the top of the end structure and a second end locking ring disposed on the groove bottom wall, at least one second end locking ring is disposed between adjacent first end locking rings along the width direction of the container body, and the center distance L1 between adjacent end locking rings satisfies: L1≤200mm; the side locking ring includes a first side locking ring and a second side locking ring spaced apart along the length direction of the container body, and at least one second side locking ring is disposed between adjacent first side locking rings along the length direction of the container body, and the center distance L2 between adjacent side locking rings satisfies: L2≤300mm, different tarpaulins and tarpaulin fixing methods can be adopted according to the transportation environment of the open-top container, thereby enabling the open-top container to adapt to the current domestic transportation needs that do not require customs clearance, and to meet the TIR specification requirements to achieve international transportation customs clearance.

[0016] Optionally, the side structure has a plurality of inwardly recessed portions, and the side locking ring is disposed within the recessed portions.

[0017] The side structure has multiple inwardly recessed portions, and the side locking ring is disposed within the recessed portions.

[0018] Optionally, the recess includes a first bottom wall and first side walls connected to both sides of the first bottom wall, and the first side locking ring is disposed on the first bottom wall; and / or

[0019] The second side locking ring is disposed on the first bottom wall and / or the first side wall.

[0020] Optionally, when the second side locking ring is disposed on the first bottom wall, it is located at the middle position of the first bottom wall.

[0021] Optionally, the center distance L2 between adjacent side locking rings satisfies: 200mm≤L2≤300mm.

[0022] Optionally, the projections of the first end locking ring and the second end locking ring in the horizontal plane do not at least partially coincide along the width direction; and / or

[0023] The projections of the first end locking ring and the second end locking ring in the horizontal plane do not at least partially coincide along the length direction.

[0024] Optionally, the projections of adjacent first end-locking rings and the second end-locking ring located therebetween in the horizontal plane are arranged in at least one of a V-shape and a trapezoidal shape along the width direction.

[0025] Optionally, the tarpaulin also includes end eyelets and side eyelets, wherein the end eyelets are located at the end portion of the tarpaulin and correspond one-to-one with the end locking rings, and the side eyelets are located at the side portion of the tarpaulin and correspond one-to-one with the side locking rings.

[0026] Optionally, the tarpaulin includes a tarpaulin body, and the side eyelet includes a first side eyelet and a second side eyelet, wherein the first side eyelet is disposed on the tarpaulin body, and the second side eyelet is connected to the outer edge of the tarpaulin body.

[0027] Optionally, the tarpaulin further includes a protrusion connected to the outer edge of the tarpaulin body, and the second side eyelet is disposed on the protrusion.

[0028] Optionally, the fixing device further includes:

[0029] A first fixing part is provided at intervals along the length direction on the side structure;

[0030] The second fixing part is connected to the first side eyelet and can be locked to the first fixing part to fix the tarpaulin.

[0031] Optionally, one of the first fixing part and the second fixing part is configured as a ring-shaped member, and the other is configured as a hook-shaped member that cooperates with the ring-shaped member.

[0032] Optionally, the fixing device further includes a connector that connects the second fixing part to the first side eye socket and includes an elastic segment.

[0033] Optionally, the tarpaulin includes a tarpaulin body and a skirt, the skirt being connected to the edge of the tarpaulin body, and the skirt including a skirt body, a protrusion, and a connecting portion, the protrusion protruding relative to the skirt body, and the connecting portion connecting the skirt body and the protrusion. Attached Figure Description

[0034] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention.

[0035] In the attached image:

[0036] Figure 1 This is a side view of an open-top container according to a preferred embodiment of the present invention;

[0037] Figure 2 This is a top view of an open-top container according to a preferred embodiment of the present invention, wherein the tarpaulin is not shown;

[0038] Figure 3 This is a top side view of an open-top container according to a preferred embodiment of the present invention;

[0039] Figure 4 and Figure 5 This is a partial cross-sectional schematic diagram along the length of the container body of the side structure of an open-top container according to a preferred embodiment of the present invention.

[0040] Figure 6 This is a top view of the tarpaulin of an open-top container according to a preferred embodiment of the present invention;

[0041] Figure 7 This is a partial top view of the end portion of the tarpaulin of an open-top container according to a preferred embodiment of the present invention.

[0042] Figure 8 and Figure 9 This is a partial side view of the side portion of the tarpaulin of an open-top container according to a preferred embodiment of the present invention.

[0043] Figure 10 This is a partial side view of the skirt of the tarpaulin of an open-top container according to a preferred embodiment of the present invention.

[0044] Figure 11 This is a partial side view of the skirt of the tarpaulin of an open-top container according to another preferred embodiment of the present invention.

[0045] Figure 12 This is a side view of the tarpaulin of an open-top container according to another preferred embodiment of the present invention;

[0046] Figure 13 A side view of an open-top container according to a preferred embodiment of the present invention, showing a tarpaulin fixed using a first fixing method;

[0047] Figure 14 A side view of an open-top container according to a preferred embodiment of the present invention, showing a second fixing method for securing the tarpaulin.

[0048] Figure 15 A schematic diagram of the structure of the first and second fixing parts of the fixing device for an open-top container according to a preferred embodiment of the present invention; and

[0049] Figure 16 This is a schematic diagram of the structure of the first and second fixing parts of the fixing device for an open-top container according to another preferred embodiment of the present invention.

[0050] Explanation of reference numerals in the attached figures:

[0051] 110: Box body 101: Opening

[0052] 111: End structure; 112: Side structure

[0053] 113: Groove 114: Groove bottom wall

[0054] 115: Side wall of the first groove 116: Side wall of the second groove

[0055] 118: Recessed portion; 121: First end locking ring

[0056] 122: Second end locking ring; 123: First side locking ring

[0057] 124: Second side locking ring; 125 / 225: First fixing part

[0058] 126 / 226: Second fixing part; 127: Connecting part

[0059] 131: First bottom wall; 132: First side wall

[0060] 140: Tarpaulin 141: First eye ring

[0061] 142: Second eyelid circumference 143: First eyelid circumference

[0062] 144: Second eye ring 145: The tarpaulin itself

[0063] 146: Protrusion 147: End portion

[0064] 148: Side section 149 / 249: Skirt hem

[0065] 151: Rope-like part; 156 / 256: Skirt body

[0066] 157 / 257: Protrusion; 158 / 258: Connecting part

[0067] 161: Elastic segment; 162: Inelastic segment Detailed Implementation

[0068] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0069] To fully understand the present invention, detailed structures will be presented in the following description to illustrate it. Obviously, the implementation of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below; however, the present invention may have other embodiments besides these detailed descriptions and should not be construed as being limited to the embodiments set forth herein.

[0070] It should be understood that the terminology used herein is intended only to describe particular embodiments and is not intended to limit the invention. The singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. When the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated feature, integral, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms “upper,” “lower,” “front,” “rear,” “left,” “right,” and similar expressions used in this invention are for illustrative purposes only and are not intended to be limiting.

[0071] The ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."

[0072] 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 are not intended to limit the present invention.

[0073] refer to Figure 1 and Figure 2According to a preferred embodiment of the invention, the open-top container can be covered with a tarpaulin 140 to seal its top. In other words, the open-top container is a soft-top open-top container.

[0074] The open-top container includes a container body 110 and securing devices. The container body 110 includes a base frame structure (not shown), end structures 111, and side structures 112. In this embodiment, the open-top container has an open top, meaning it has an opening 101 at the top. Goods can be loaded into the open-top container through the opening 101 by means such as hoisting. After loading, the opening 101 is covered with a tarpaulin 140 to seal it.

[0075] The end structure 111 includes a groove 113. The groove 113 is disposed on the top of the end structure 111. The groove 113 may include a bottom wall 114, a first side wall 115, and a second side wall 116. For details, please refer to [reference needed]. Figure 3 The bottom wall 114 connects to the bottom of the first side wall 115 and the bottom of the second side wall 116. The first side wall 115 is configured as a vertical wall extending upward from the bottom wall 114. The second side wall 116 is configured as an inclined wall extending upward from the bottom wall 114 and extending away from the first side wall 115. The first side wall 115 is closer to the center of the opening 101 than the second side wall 116.

[0076] The securing device is used to secure the tarpaulin 140 that covers the opening 101 of the housing 110. The securing device includes end locking rings and side locking rings.

[0077] An end locking ring is disposed on the end structure 111, and includes a first end locking ring 121 and a second end locking ring 122. Please refer to [reference needed] for details. Figure 2 and Figure 3 The first locking ring 121 is spaced apart on the side wall 115 of the first groove along the width direction D1 of the container body 110 (i.e., the width direction D1 of the end structure 111). The second locking ring 122 is spaced apart on the bottom wall 114 of the groove along the width direction D1 of the container body 110. In this way, when the open-top container is used for domestic land transportation and the opening 101 of the container body 110 is covered with the original tarpaulin used for domestic land transportation, the second locking ring 122 will not interfere with the tarpaulin, which helps to ensure the fit between the tarpaulin and the end structure 111, and thus ensures the airtightness of the tarpaulin covering the opening 101.

[0078] exist Figure 2 In the illustrated embodiment, along the width direction D1 of the housing 110, a second end locking ring 122 is provided between adjacent first end locking rings 121. However, in the embodiment not shown... Figure 7In the embodiment of the end locking ring that matches the end eyelet of the tarpaulin 140 shown, two second end locking rings 122 are provided between adjacent first end locking rings 121 along the width direction D1 of the box body 110.

[0079] In other words, along the width direction D1 of the container 110, at least one second end locking ring 122 is provided between adjacent first end locking rings 121. The specific number of second end locking rings 122 needs to be determined based on the marine transport requirement that the center distance L1 between adjacent end locking rings should be L1≤200mm. In other words, the arrangement of second end locking rings 122 between adjacent first end locking rings 121 should ensure that the center distance L1 between adjacent first end locking rings 121 and second end locking rings 122 is L1≤200mm.

[0080] A side locking ring is provided on the side structure 112, and includes a first side locking ring 123 and a second side locking ring 124. Please refer to the following for details. Figure 1 The first side locking ring 123 is spaced apart along the length direction D2 of the housing 110 (that is, the length direction D2 of the side structure 112). The second side locking ring 124 is spaced apart along the length direction D2 of the housing 110.

[0081] exist Figure 1 and Figure 5 In the illustrated embodiment, along the length direction D2 of the housing 110, a second side locking ring 124 is provided between adjacent first side locking rings 123. However, in embodiments such as Figure 4 In the embodiment shown, along the length direction D2 of the housing 110, two second side locking rings 124 are provided between adjacent first side locking rings 123.

[0082] In other words, along the length direction D2 of the container body 110, at least one second side locking ring 124 is provided between adjacent first side locking rings 123. The specific number of second side locking rings needs to be determined based on the marine transport requirement that the center distance L2 between adjacent side locking rings should be L2 ≤ 300mm. In other words, the arrangement of second side locking rings 124 between adjacent first side locking rings 123 should ensure that the center distance L2 between adjacent first side locking rings 123 and second side locking rings 124 is L2 ≤ 300mm.

[0083] According to the open-top container of the present invention, by providing at least one second end locking ring 122 between adjacent first end locking rings 121 along the width direction D1 of the container body 110, and providing at least one second side locking ring 124 between adjacent first side locking rings 123 along the length direction D2 of the container body 110, the center distance L1 between adjacent end locking rings satisfies: L1≤200mm, and the center distance L2 between adjacent side locking rings satisfies: L2≤300mm. This allows for the use of different tarpaulins 140 and tarpaulin fixing methods according to the transportation environment when using the open-top container. As a result, the open-top container can adapt to the current domestic transportation needs that do not require customs clearance, and can also meet the TIR specification requirements to achieve international transportation customs clearance.

[0084] Please continue to refer to this. Figure 2 When setting the end locking rings, it is preferable that the projections of the first end locking ring 121 and the second end locking ring 122 in the horizontal plane do not at least partially coincide along the width direction D1. This facilitates the installation of the second end locking ring 122 between adjacent first end locking rings 121, and also facilitates the maintenance and even replacement of the first and second end locking rings 121 and 122. In addition, it also facilitates the installation and fixing of the tarpaulin 140 (such as facilitating the operation of fitting the end eyelets of the tarpaulin 140, which will be described below, onto the end locking rings) and ensures the fit between the tarpaulin 140 and the end structure 111, thereby ensuring the airtightness of the tarpaulin 140 covering the opening 101 of the box body 110.

[0085] More preferably, the projections of the first end locking ring 121 and the second end locking ring 122 in the horizontal plane do not at least partially coincide along the length direction D2. This facilitates the installation of the second end locking ring 122 between adjacent first end locking rings 121, and also facilitates the maintenance and even replacement of the first and second end locking rings 121 and 122. Furthermore, it facilitates the installation and fixing of the tarpaulin 140 (e.g., facilitating the operation of fitting the end eyelets of the tarpaulin 140, as described below, onto the end locking rings) and ensures the fit between the tarpaulin 140 and the end structure 111, thereby ensuring the airtightness of the tarpaulin 140 covering the opening 101 of the box 110.

[0086] exist Figure 2In the illustrated arrangement, a second end lock ring 122 is provided between adjacent first end lock rings 121, and the projections of the adjacent first end lock rings 121 and the second end lock ring 122 located therebetween are arranged in a V-shape along the width direction D1 in the horizontal plane. Similarly, this facilitates the installation of the second end lock ring 122 between adjacent first end lock rings 121, and also facilitates the maintenance and even replacement of the first and second end lock rings 121 and 122. Furthermore, it facilitates the installation and fixation of the tarpaulin 140 (e.g., facilitating the operation of fitting the end eyelets of the tarpaulin 140, as described below, onto the end lock rings) and ensures the fit between the tarpaulin 140 and the end structure 111, thereby ensuring the airtightness of the tarpaulin 140 covering the opening 101 of the box body 110.

[0087] However, in embodiments where two second end locking rings 122 are provided between adjacent first end locking rings 121, that is, with Figure 7 In the embodiment of the end locking ring that mates with the end eyelets of the tarpaulin 140 shown, the projections of adjacent first end locking rings 121 and two second end locking rings 122 located therebetween in the horizontal plane are arranged in a trapezoidal shape along the width direction D1. Similarly, this facilitates the installation of second end locking rings 122 between adjacent first end locking rings 121, and also facilitates the maintenance and even replacement of the first and second end locking rings 121 and 122. Furthermore, it facilitates the installation and fixation of the tarpaulin 140 (e.g., facilitating the operation of fitting the end eyelets of the tarpaulin 140 onto the end locking rings, as described below) and ensures the fit between the tarpaulin 140 and the end structure 111, thereby ensuring the airtightness of the tarpaulin 140 covering the opening 101 of the housing 110.

[0088] In an embodiment not shown, a second end lock ring 122 may be provided between at least one pair of adjacent first end lock rings 121, and two second end lock rings 122 may be provided between at least another pair of adjacent first end lock rings 121. In this case, the projections of the adjacent first end lock rings 121 and the second end lock rings 122 located therebetween in the horizontal plane are arranged in two ways: V-shaped and trapezoidal along the width direction D1.

[0089] That is, the projections of the adjacent first end locking ring 121 and the second end locking ring 122 located therebetween in the horizontal plane are arranged in at least one of the following: V-shaped and trapezoidal arrangement along the width direction D1.

[0090] Continue to refer to Figure 3Further preferably, the second end locking ring 122 can be positioned closer to the side wall 116 of the second groove. That is, the second end locking ring 122 is preferably positioned further from the side wall 115 of the first groove than from the side wall 116 of the second groove, to further facilitate the installation of the second end locking ring 122 between adjacent first end locking rings 121, and to facilitate the maintenance and even replacement of the first and second end locking rings 121 and 122. It also facilitates the installation and fixing of the tarpaulin 140 (e.g., facilitating the operation of fitting the end eyelets of the tarpaulin 140, as described below, onto the end locking rings) and ensures the sealing of the tarpaulin 140 over the opening 101 of the container body 110. Furthermore, it is more advantageous when the open-top container is used for domestic land transport and the existing tarpaulin used for domestic land transport is used to cover the opening 101 of the container body 110, as the second end locking ring 122 will not interfere with the tarpaulin, ensuring the fit between the tarpaulin and the end structure 111, and thus ensuring the sealing of the tarpaulin over the opening 101.

[0091] Please refer to the following: Figure 4 and Figure 5 The side structure 112 has a plurality of inwardly recessed portions 118. The plurality of recessed portions 118 are spaced apart along the length direction D2 of the side structure 112. The side locking ring is preferably disposed within the recessed portion 118. Thus, on the one hand, it can effectively prevent the side locking ring from protruding from the side structure 112 and colliding with other objects, which is beneficial to protecting the side locking ring; on the other hand, it is beneficial to ensure the fit between the tarpaulin 140 and the side structure 112, thereby ensuring the airtightness of the tarpaulin 140 covering the opening 101.

[0092] Specifically, the recess 118 may include a first bottom wall 131 and a first side wall 132. The first side wall 132 is connected to both sides of the first bottom wall 131. The first side wall 132 is preferably inclined from the first bottom wall 131 toward the outer surface of the side structure 112 in order to ensure the strength of the side structure 112.

[0093] The first side locking ring 123 is preferably disposed on the first bottom wall 131 to facilitate the installation of the first side locking ring 123 and the installation and fixation of the tarpaulin 140. More preferably, the first side locking ring 123 is disposed at the middle position of the first bottom wall 131. That is, the first side locking ring 123 is located at the center position of the first bottom wall 131 along the length direction D2 of the side structure 112. This facilitates the installation of the first side locking ring 123 and the fixation of the tarpaulin 140 to the first side locking ring 123. Furthermore, it helps to ensure the fit between the tarpaulin 140 and the side structure 112, thereby helping to ensure the sealing of the tarpaulin 140 covering the opening 101.

[0094] exist Figure 4In the illustrated embodiment, the second side locking ring 124 is disposed on the first side wall 132. The aforementioned arrangement of the first side wall 132 to slope from the first bottom wall 131 toward the outer surface of the side structure 112 also facilitates the installation of the second side locking ring 124. The second side locking ring 124 is preferably disposed on the first side wall 132 near the outer surface of the side structure 112. That is, the second side locking ring 124 is preferably disposed closer to the outer surface of the side structure 112 than to the first bottom wall 131. This provides ample operating space for the installation of the second side locking ring 124, thus facilitating its installation. Furthermore, it also facilitates the fixing of the tarpaulin 140 to the second side locking ring 124.

[0095] exist Figure 5 In the illustrated embodiment, the second side locking ring 124 is disposed on the first bottom wall 131 to facilitate the installation of the second side locking ring 124 and the installation and fixation of the tarpaulin 140. More preferably, the second side locking ring 124 is disposed at the middle position of the first bottom wall 131. That is, the second side locking ring 124 is located at the center position of the first bottom wall 131 along the length direction D2 of the side structure 112. This facilitates the installation of the second side locking ring 124 and the fixation of the tarpaulin 140 to the second side locking ring 124. Furthermore, it helps to ensure the fit between the tarpaulin 140 and the side structure 112, thereby helping to ensure the sealing of the tarpaulin 140 over the opening 101. Furthermore, by setting the second side locking ring 124 on the first bottom wall 131, compared to setting it on the first side wall 132, the number of second side locking rings 124 can be reduced accordingly, provided that the center distance L2 between adjacent side locking rings is ≤300mm. This is beneficial to improving the production efficiency of open-top containers and reducing production costs.

[0096] To further ensure the fit between the tarpaulin 140 and the side structure 112, and thus ensure the airtightness of the tarpaulin 140 covering the opening 101, the center distance L2 between adjacent side locking rings is preferably set to satisfy: 200mm≤L2≤300mm.

[0097] Please refer to the following. Figures 6 to 12 The tarpaulin 140 of this application will be described in detail.

[0098] As mentioned above, the tarpaulin 140 is used to cover the opening 101 of the container 110. The tarpaulin 140 includes end eyelets and side eyelets. The end eyelets are located on the end portion 147 of the tarpaulin 140 and correspond one-to-one with the end locking rings. The side eyelets are located on the side portion 148 of the tarpaulin 140 and correspond one-to-one with the side locking rings. That is, the end eyelets are located on the end portion 147 of the tarpaulin 140 at the positions corresponding to the end locking rings on the end structure 111, and the number of end eyelets is the same as the number of end locking rings. The side eyelets are located on the side portion 148 of the tarpaulin 140 at the positions corresponding to the side locking rings on the side structure 112, and the number of side eyelets is the same as the number of side locking rings. The end eyelets and side eyelets can be respectively fitted onto the end locking rings and side locking rings to secure the tarpaulin 140.

[0099] Please refer to the details. Figure 6 and Figure 7 The end eyelets include a first end eyelet 141 and a second end eyelet 142. The first end eyelets 141 are spaced apart along the width direction D1 of the tarpaulin 140 (i.e., the width direction D1 of the box 110) on the end portion 147, and are positioned on the end portion 147 corresponding to the first end locking ring 121, so that the first end eyelets 141 can be fitted onto the first end locking ring 121 to secure the tarpaulin 140. The second end eyelets 142 are spaced apart along the width direction D1 of the tarpaulin 140 on the end portion 147, and are positioned on the end portion 147 corresponding to the second end locking ring 122, so that the second end eyelets 142 can be fitted onto the second end locking ring 122 to secure the tarpaulin 140.

[0100] exist Figure 6 In the illustrated embodiment, along the width direction D1 of the tarpaulin 140, a second eyelet 142 is provided between adjacent first eyelets 141. Figure 7 In the embodiment shown, along the width direction D1 of the tarpaulin 140, two second eyelets 142 are provided between adjacent first eyelets 141.

[0101] In other words, along the width direction D1 of the tarpaulin 140, at least one second eyelet 142 is provided between adjacent first eyelets 141. Similar to the arrangement of the second end locking ring 122, the specific number of second eyelets 142 between adjacent first eyelets 141 needs to be determined based on the maritime requirement that the center distance L3 between adjacent eyelets should be L3≤200mm. In other words, the arrangement of second eyelets 142 between adjacent first eyelets 141 should ensure that the center distance L3 between adjacent first eyelets 141 and second eyelets 142 is L3≤200mm.

[0102] The side eye circles include the first side eye circle 143 and the second side eye circle 144. Please refer to the following for details. Figure 6 , Figure 8 and Figure 9 The first side eyelet 143 is spaced along the length D2 of the tarpaulin 140 (i.e., the length D2 of the box body 110). The second side eyelet 144 is spaced along the length D2 of the tarpaulin 140. Figure 6 In the embodiment shown, a second side eyelet 144 is provided between adjacent first side eyelets 143 along the length direction D2 of the tarpaulin 140. Figure 8 and Figure 9 In the embodiment shown, along the length direction D2 of the tarpaulin 140, two second side eyelets 144 are provided between adjacent first side eyelets 143.

[0103] In other words, along the length direction D2 of the tarpaulin 140, at least one second side eyelet 144 is provided between adjacent first side eyelets 143. Similar to the arrangement of the second side locking ring 124, the specific number of second side eyelets 144 between adjacent first side eyelets 143 needs to be determined based on the maritime transport requirement that the center distance L4 between adjacent side eyelets should be L4≤300mm. In other words, the arrangement of second side eyelets 144 between adjacent first side eyelets 143 should ensure that the center distance L4 between adjacent first side eyelets 143 and second side eyelets 144 is L4≤300mm.

[0104] Thus, by setting at least one second end eyelet 142 between adjacent first end eyelets 141 along the width direction D1 of the tarpaulin 140, and setting at least one second side eyelet 144 between adjacent first side eyelets 143 along the length direction D2 of the tarpaulin 140, the center distance L3 between adjacent end eyelets satisfies: L3≤200mm, and the center distance L4 between adjacent side eyelets satisfies: L4≤300mm. This allows for different tarpaulin fixing methods to be used according to the transportation environment of the open-top container when using the tarpaulin 140. As a result, the open-top container can not only adapt to the current domestic transportation needs that do not require customs clearance, but also meet the TIR specification requirements and achieve international transportation customs clearance.

[0105] Similarly, in order to further ensure the fit between the tarpaulin 140 and the side structure 112, and thus ensure the airtightness of the tarpaulin 140 covering the opening 101, the center distance L4 between adjacent side eyelets is preferably set to satisfy: 200mm≤L4≤300mm.

[0106] Similar to the end locking ring setup, when setting the end eyelets, preferably the projections of the first end eyelet 141 and the second end eyelet 142 in the horizontal plane do not at least partially overlap along the width direction D1 of the tarpaulin 140. This facilitates the installation of the second end eyelet 142 between adjacent first end eyelets 141, and also facilitates the maintenance and even replacement of the first and second end eyelets 141 and 142. Furthermore, it also facilitates the operation of fitting the end eyelets of the tarpaulin 140 onto the end locking ring, and ensures the fit between the tarpaulin 140 and the end structure 111, thereby ensuring the airtightness of the tarpaulin 140 covering the opening 101 of the tarpaulin 140.

[0107] More preferably, the projections of the first eyelet 141 and the second eyelet 142 in the horizontal plane do not at least partially overlap along the length direction D2 of the tarpaulin 140 (i.e., the length direction D2 of the housing 110). This facilitates the installation of the second eyelet 142 between adjacent first eyelets 141 and also facilitates the maintenance and even replacement of the first and second eyelets 141. Furthermore, it facilitates the operation of fitting the end eyelets of the tarpaulin 140 onto the end locking ring and ensures the fit between the tarpaulin 140 and the end structure 111, thereby ensuring the airtightness of the tarpaulin 140 covering the opening 101 of the tarpaulin 140.

[0108] exist Figure 6 In the illustrated embodiment, a second eyelet 142 is provided between adjacent first eyelets 141 along the width direction D1 of the tarpaulin 140. The projections of adjacent first eyelets 141 and the second eyelet 142 located therebetween in the horizontal plane form a V-shape along the width direction D1. Similarly, this facilitates the installation of the second eyelet 142 between adjacent first eyelets 141, and also facilitates the maintenance and even replacement of the first and second eyelets 141 and 142. In addition, it facilitates the operation of fitting the end eyelets of the tarpaulin 140 onto the end locking ring, and ensures the fit between the tarpaulin 140 and the end structure 111, thereby ensuring the airtightness of the tarpaulin 140 covering the opening 101 of the tarpaulin 140.

[0109] exist Figure 7In the illustrated embodiment, two second eyelets 142 are provided between adjacent first eyelets 141, and the projections of the adjacent first eyelets 141 and the two second eyelets 142 located therebetween in the horizontal plane form a trapezoidal arrangement along the width direction D1. Similarly, this facilitates the installation of second eyelets 142 between adjacent first eyelets 141, and also facilitates the maintenance and even replacement of the first and second eyelets 141 and 142. Furthermore, it facilitates the operation of fitting the end eyelets of the tarpaulin 140 onto the end locking ring, and ensures the fit between the tarpaulin 140 and the end structure 111, thereby ensuring the airtightness of the tarpaulin 140 covering the opening 101 of the tarpaulin 140.

[0110] In an embodiment not shown, a second eyelet 142 may be provided between at least one pair of adjacent first eyelets 141, and two second eyelets 142 may be provided between at least another pair of adjacent first eyelets 141. In this case, the projections of the adjacent first eyelets 141 and the second eyelets 142 located therebetween on the horizontal plane are arranged in two ways along the width direction D1: V-shaped and trapezoidal.

[0111] That is, the projections of the adjacent first eyelet 141 and the second eyelet 142 located therebetween in the horizontal plane are arranged in at least one of the following: V-shaped and trapezoidal arrangement along the width direction D1.

[0112] Specifically, the tarpaulin 140 may include a tarpaulin body 145. A first side eyelet 143 is preferably disposed on the tarpaulin body 145, and a second side eyelet 144 is preferably connected to the outer edge of the tarpaulin body 145. Please refer to further details. Figure 8 and Figure 9 This provides ample operating space for the installation of the second side eyelet 144, thus facilitating its installation. Furthermore, it facilitates the fitting of the second side eyelet 144 onto the second side locking ring 124 to secure the tarpaulin 140. Additionally, it ensures a good fit between the tarpaulin 140 and the side structure 112, thereby guaranteeing the airtightness of the tarpaulin 140 over the opening 101.

[0113] The first side eyelet 143 is preferably located near the outer edge of the tarpaulin body 145 to effectively shorten the longitudinal distance S between the first side eyelet 143 and the second side eyelet 144, preventing excessive tarpaulin 140 from hanging over the side structure 112, thereby improving the utilization rate of the tarpaulin 140. Furthermore, it also facilitates the operation of attaching the side eyelet to the side locking ring.

[0114] Furthermore, the tarpaulin 140 also includes a protrusion 146, for details please refer to Figure 9The protrusion 146 is connected to the outer edge of the tarpaulin body 145. A second eyelet 144 is provided on the protrusion 146. Similarly, this provides ample operating space for the installation of the second eyelet 144, thus facilitating its installation. Furthermore, it facilitates fitting the second eyelet 144 onto the second locking ring 124 to secure the tarpaulin 140. Moreover, it helps ensure the fit between the tarpaulin 140 and the side structure 112, thereby ensuring the tarpaulin 140's sealing over the opening 101.

[0115] The second side eyelet 144 is preferably positioned near the outer edge of the protrusion 146, close to the outer edge of the tarpaulin body 145, to effectively shorten the longitudinal distance S between the first side eyelet 143 and the second side eyelet 144, preventing excessive tarpaulin 140 from draping over the side structure 112, thereby improving the utilization rate of the tarpaulin 140. Furthermore, it facilitates the operation of fitting the side eyelet onto the side locking ring.

[0116] exist Figure 9 In the illustrated embodiment, a plurality of protrusions 146 are provided at intervals along the length direction D2 of the tarpaulin 140 to save material used in the tarpaulin 140 and reduce the manufacturing cost of the tarpaulin 140. It should be understood that the protrusions 146 may also be constructed as continuous strips connected to the outer edge of the tarpaulin body 145 to improve the strength of the tarpaulin 140 and thus ensure the stability of the connection between the second side eyelet 144 and the second side locking ring 124.

[0117] The material of the protrusion 146 is preferably the same as that of the tarpaulin body 145 to facilitate the connection between the two. It is understood that the material of the protrusion 146 may also be different from that of the tarpaulin body 145.

[0118] In Figure 8 and Figure 9 In the embodiment of the side eyelet corresponding to the side locking ring shown, along the height direction of the side structure 112 (that is, the height direction of the box 110), the first side locking ring 123 is located above the second side locking ring 124, so that the first side eyelet 143 and the second side eyelet 144 can be respectively fitted onto the first side locking ring 123 and the second side locking ring 124, and ensure the fit between the tarpaulin 140 and the side structure 112, thereby ensuring the sealing of the tarpaulin 140 covering the opening 101.

[0119] In an embodiment not shown, the first side eyelet 143 and the second eyelet can both be disposed on the tarpaulin body 145, and preferably disposed near the outer edge of the tarpaulin body 145. Furthermore, the first side eyelet 143 and the second eyelet are arranged in a row along the length direction D2 of the tarpaulin body 145. Correspondingly, the first side locking ring 123 and the second side locking ring 124 are also arranged in a row along the length direction D2 of the side structure 112.

[0120] The tarpaulin 140 preferably also includes a skirt 149, for details please refer to Figure 10 The skirt 149 is connected to the edge of the tarpaulin body 145. The skirt 149 is preferably located on the side portion 148 of the tarpaulin 140, thereby allowing the tarpaulin 140 to conform to the shape of the side structure 112, ensuring a good fit between the tarpaulin 140 and the side structure 112, which helps guarantee the airtightness of the tarpaulin 140 covering the opening 101. Furthermore, the skirt 149 also helps improve the overall appearance consistency of the open-top container.

[0121] exist Figure 10 In the illustrated embodiment, the skirt 149 specifically includes a skirt body 156, protrusions 157, and a connecting portion 158. The skirt body 156 is spaced apart along the length direction D2 of the tarpaulin 140. The protrusions 157 are spaced apart along the length direction D2 of the tarpaulin 140 and protrude relative to the skirt body 156. That is, the protrusions 157 and the skirt body 156 are not coplanar. The connecting portion 158 connects the skirt body 156 and the protrusions 157.

[0122] In this embodiment, the skirt body 156, the protrusion 157, and the connecting portion 158 are all rectangular in shape. The skirt body 156 and the protrusion 157 are parallel and arranged on opposite sides. The two sides of the connecting portion 158 are respectively connected to the adjacent side ends of the skirt body 156 and the protrusion 157.

[0123] The side eyelet is preferably located on the protrusion 157, and more preferably on the protrusion 157 near the outer edge of the hem 149. It is understood that the side eyelet can also be located on the hem body 156, and more preferably on the hem body 156 near the outer edge of the hem 149.

[0124] By providing a skirt 149 that includes a skirt body 156, a protrusion 157, and a connecting portion 158, the shape of the tarpaulin 140 can be adapted to the side structure 112, ensuring a good fit between the tarpaulin 140 and the side structure 112, which helps guarantee the airtightness of the tarpaulin 140 covering the opening 101. Furthermore, the skirt 149 also helps improve the overall appearance consistency of the open-top container.

[0125] Figure 11Another preferred embodiment of the skirt is shown. Figure 11 The skirt 249 in the illustrated embodiment and Figure 10 The difference in the illustrated embodiment of the skirt 149 is that the shapes of the skirt body 256, the protrusion 257, and the connecting portion 258 are different from those of the skirt body 156, the protrusion 157, and the connecting portion 158. Figure 11 In the illustrated embodiment, the skirt body 256 is an inverted trapezoidal shape. The protrusion 257 and the connecting portion 258 are both upright trapezoidal shapes. Furthermore, the apex corner of the connecting portion 258 on the skirt body 256 side is rounded to facilitate the connection between the connecting portion 258 and the skirt body 256, and to effectively enhance the aesthetics of the skirt 249.

[0126] In this embodiment, the top of the protrusion 257 is connected to the skirt body 256, and the bottom of the protrusion 257 protrudes beyond the skirt body 256. The two sides of the connecting portion 258 are respectively connected to the adjacent side ends of the skirt body 256 and the protrusion 257.

[0127] When open-top containers are used for domestic land transportation, the fixing device preferably includes a first fixing part 125 and a second fixing part 126 to facilitate the fixing of the tarpaulin 140. Please refer to [reference needed] for details. Figure 12 and Figure 14 The first fixing part 125 is provided at intervals along the length direction D2 of the side structure 112; the second fixing part 126 is connected to the first side eyelet 143 and can be locked to the first fixing part 125 to fix the tarpaulin 140. In this way, when the open-top container is used for domestic land transportation, the tarpaulin 140 can be quickly fixed by directly locking the second fixing part 126 connected to the first side eyelet 143 to the first fixing part 125, thereby effectively improving the fixing efficiency of the tarpaulin 140.

[0128] Preferably, one of the first fixing part 125 and the second fixing part 126 is configured as a ring-shaped member, and the other is configured as a hook-shaped member that cooperates with the ring-shaped member.

[0129] Please refer to the following for details. Figure 15 The first fixing part 125 is configured as a hook-shaped member with its opening facing downwards, and the second fixing part 126 is constructed as a ring-shaped member. The ring-shaped member can hook onto the hook-shaped member from its opening. Please refer to [further details omitted]. Figure 16 The first fixing part 225 shown is configured as a ring, and the second fixing part 226 is configured as a hook with the opening facing upward.

[0130] The first fixing part 125 and / or the first fixing part 225 are preferably disposed at the first bottom wall 131 of the side structure 112 to avoid the first fixing part 125 and / or the first fixing part 225 protruding from the side structure 112 and colliding with other objects, which is beneficial to protecting the side locking ring. In addition, it is also beneficial to ensure the fit between the tarpaulin 140 and the side structure 112, thereby ensuring the airtightness of the tarpaulin 140 covering the opening 101.

[0131] The fixing device preferably further includes a connector 127. The connector 127 connects the second fixing part 126 and / or the second fixing part 226 to the first side eye socket 143 to facilitate the connection between the second fixing part 126 and / or the second fixing part 226 and the first side eye socket 143.

[0132] The connector 127 preferably includes an elastic segment 161. One end of the elastic segment 161 is connected to the second fixing part 126 or the second fixing part 226, and the other end is connected to the first side eyelet 143. When the second fixing part 126 or the second fixing part 226 is locked to the first fixing part 125 or the first fixing part 225 to fix the tarpaulin 140, the elastic segment 161 has a certain elastic force due to being stretched. The elastic force of the elastic segment 161 can tighten the tarpaulin 140, which can effectively enhance the fit between the tarpaulin 140 and the side structure 112, ensuring the sealing of the tarpaulin 140 over the opening 101; on the other hand, it can effectively prevent water accumulation on the tarpaulin 140. In addition, the setting of the elastic segment 161 also makes the operation of locking the second fixing part 126 to the first fixing part 125 simple, safe and reliable.

[0133] exist Figure 15 In the illustrated embodiment, the connector 127 further includes a non-elastic segment 162. The non-elastic segment 162 can be constructed as a nylon rope or the like. In this way, the tension of the connector 127 on the tarpaulin 140 can be controlled by the cooperation of the elastic segment 161 and the non-elastic segment 162, so as to effectively fix the tarpaulin 140, thereby enhancing the fit between the tarpaulin 140 and the side structure 112, and ensuring the airtightness of the tarpaulin 140 covering the opening 101.

[0134] Please refer to the following. Figure 13 and 14 We will introduce two methods for fixing the tarpaulin 140.

[0135] Please refer to this first. Figure 13This illustrates a scenario where an open-top container is used for maritime transport, employing a first securing method to fix the tarpaulin 140. Specifically, after the tarpaulin 140 covers the opening 101, the end eyelets (i.e., the first end eyelet 141 and the second end eyelet 142) and side eyelets (i.e., the first side eyelet 143 and the second side eyelet 144) of the tarpaulin 140 are respectively fitted onto the corresponding end locking rings (i.e., the first end locking ring 121 and the second end locking ring 122) and side locking rings (i.e., the first side locking ring 123 and the second side locking ring 124). At this point, the tarpaulin 140 is taut. Then, a rope-like member 151 is sequentially passed through the end locking rings and the side locking rings, and the ends of the rope-like member 151 are secured (e.g., by locking the ends of the rope-like member 151 through the engagement between the lock and the locking holes provided at both ends of the rope-like member 151). In this way, the tarpaulin 140 can be fixed by means of the end eyelets and side eyelets and the rope-like member 151, so that the fixing method of the tarpaulin 140 can meet the requirements of sea transport when used for sea transport.

[0136] Please refer to this again. Figure 14 This illustrates a second fixing method used to secure the tarpaulin 140 when an open-top container is used for land transport. Specifically, after the tarpaulin 140 covers the opening 101, the end eyelets of the tarpaulin 140 (i.e., the first end eyelet 141 and the second end eyelet 142) are first fitted onto the corresponding end locking rings (i.e., the first end locking ring 121 and the second end locking ring 122), then the rope-like member 151 is passed through the end locking rings in sequence, and the end of the rope-like member 151 is fixed (e.g., fixed to a fixing ring or similar component on the container body 110 for fixing the rope-like member 151). Then, the second fixing part 126 or the second fixing part 226 connected to the first eyelet is locked to the first fixing part 125 or the first fixing part 225 provided on the side structure 112. In this way, the tarpaulin 140 can be fixed by means of the end eyelets and rope-like parts 151, as well as the side eyelets, the first fixing part and the second fixing part, so that the fixing method of the tarpaulin 140 can meet the requirements of land transportation and effectively improve the fixing efficiency of the tarpaulin 140.

[0137] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the invention. Terms such as “part” or “component” appearing herein can refer to a single part or a combination of multiple parts. Terms such as “installation” or “installation” appearing herein can refer to one component being directly attached to another component or one component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0138] The present invention has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. The present invention is not limited to the above embodiments. Many variations and modifications can be made according to the teachings of the present invention, and all such variations and modifications fall within the scope of protection claimed by the present invention.

Claims

1. An open-top container, characterized in that, include: The box has an opening at the top and includes an end structure and a side structure. The top of the end structure includes a groove, which includes a bottom wall, a first side wall, and a second side wall. The first side wall is closer to the center of the opening than the second side wall. as well as The fixing device, used to secure the tarpaulin covering the opening, includes end locking rings and side locking rings, wherein... The end locking ring is disposed on the end structure and includes: The first end locking ring is provided at intervals along the width direction of the box body on the side wall of the first groove. The first end locking ring is used to fix the original tarpaulin used for land transportation. The second end locking ring is spaced apart on the bottom wall of the trough along the width direction. The second end locking ring is set to be farther from the side wall of the first trough than from the side wall of the second trough. At least one second end locking ring is set between adjacent first end locking rings along the width direction. The setting of at least one second end locking ring makes the center distance L1 between adjacent end locking rings meet the marine requirement of L1≤200mm. The side locking ring is disposed on the side structure and includes: The first side locking ring is spaced apart along the length direction of the housing; The second side locking rings are spaced apart along the length direction, and at least one second side locking ring is provided between adjacent first side locking rings along the length direction. The arrangement of the at least one second side locking ring ensures that the center distance L2 between adjacent side locking rings meets the marine transport requirement of L2 ≤ 300 mm; and wherein... The projections of the first end locking ring and the second end locking ring in the horizontal plane do not at least partially coincide along the width direction; and / or The projections of the first end locking ring and the second end locking ring in the horizontal plane do not at least partially coincide along the length direction.

2. The open-top container according to claim 1, characterized in that, The side structure has multiple inwardly recessed portions, and the side locking ring is disposed within the recessed portions.

3. The open-top container according to claim 2, characterized in that, The recess includes a first bottom wall and first side walls connected to both sides of the first bottom wall, and the first side locking ring is disposed on the first bottom wall; and / or The second side locking ring is disposed on the first bottom wall and / or the first side wall.

4. The open-top container according to claim 3, characterized in that, When the second side locking ring is installed on the first bottom wall, it is located in the middle of the first bottom wall.

5. The open-top container according to claim 1, characterized in that, The center distance L2 between adjacent side locking rings satisfies: 200mm≤L2≤300mm.

6. The open-top container according to claim 1, characterized in that, The projections of the adjacent first end locking ring and the second end locking ring located therebetween in the horizontal plane are arranged in at least one of a V-shape and a trapezoidal shape along the width direction.

7. The open-top container according to any one of claims 1-6, characterized in that, It also includes a tarpaulin, which includes end eyelets and side eyelets. The end eyelets are located at the end portion of the tarpaulin and correspond one-to-one with the end locking rings. The side eyelets are located at the side portion of the tarpaulin and correspond one-to-one with the side locking rings.

8. The open-top container according to claim 7, characterized in that, The tarpaulin includes a tarpaulin body, and the side eyelets include a first side eyelet and a second side eyelet. The first side eyelet is disposed on the tarpaulin body, and the second side eyelet is connected to the outer edge of the tarpaulin body.

9. The open-top container according to claim 8, characterized in that, The tarpaulin also includes a protrusion connected to the outer edge of the tarpaulin body, and the second side eyelet is disposed on the protrusion.

10. The open-top container according to claim 8, characterized in that, The fixing device also includes: A first fixing part is provided at intervals along the length direction on the side structure; The second fixing part is connected to the first side eyelet and can be locked to the first fixing part to fix the tarpaulin.

11. The open-top container according to claim 10, characterized in that, One of the first fixing part and the second fixing part is configured as a ring-shaped member, and the other is configured as a hook-shaped member that cooperates with the ring-shaped member.

12. The open-top container according to claim 10, characterized in that, The fixing device further includes a connector that connects the second fixing part to the first side eye socket, and includes an elastic segment.

13. The open-top container according to claim 7, characterized in that, The tarpaulin includes a tarpaulin body and a skirt, the skirt being connected to the edge of the tarpaulin body, and the skirt including a skirt body, a protrusion, and a connecting portion, the protrusion protruding relative to the skirt body, and the connecting portion connecting the skirt body and the protrusion.

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