Shipping container having moving floor

By designing containers with raised floors and connectors, automatic unloading of bulk cargo has been achieved, solving the problem of difficult unloading of traditional containers and improving operational efficiency and structural stability.

WO2026158127A1PCT designated stage Publication Date: 2026-07-30NANTONG CIMC-SPECIAL TRANSPORTATION EQUIPMENT MANUFACTURE CO LTD +2
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
NANTONG CIMC-SPECIAL TRANSPORTATION EQUIPMENT MANUFACTURE CO LTD
Filing Date
2026-01-14
Publication Date
2026-07-30

AI Technical Summary

Technical Problem

Traditional bulk cargo containers require manual operation for loading and unloading, which is especially difficult when unloading is not possible due to the inability to tilt them, increasing the labor intensity of operators.

Method used

A container with a movable floor was designed, which enables automatic unloading of bulk cargo through the reciprocating motion of the movable floor. The design of the connecting parts and seals enhances the strength of the underframe and seals the gaps. The fixed and movable parts are designed to protect the seals.

Benefits of technology

Bulk cargo can be unloaded without flipping the container, simplifying operations, reducing labor intensity, and improving the structural stability and sealing of the container through the design of connectors and seals.

✦ Generated by Eureka AI based on patent content.

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Abstract

A shipping container having a moving floor, comprising an underframe (110) and a moving floor (130); the underframe comprises a bottom side rail (112), a bottom crossmember, and a connecting member (140); the connecting member overlaps onto an upper surface of the bottom crossmember; the moving floor comprises a plurality of moving portions (132), a fixed portion (131), and a sealing member; the fixed portion overlaps onto an upper surface of the connecting member; the fixed portion is located at an end portion of the moving floor close to the bottom side rail; the moving portions are located at a side of the fixed portion away from the bottom side rail; the sealing member is located between the fixed portion and the moving portions; an upper surface of the fixed portion is located above the sealing member; and in a length direction of the container, the moving portions are arranged to be reciprocatingly movable relative to the fixed portion. The moving floor in the container facilitates bulk cargo unloading operations, and a connecting member increases underframe strength while supporting the moving floor. Moreover, the provision of the connecting member allows for a length of a fastener connecting a fixed portion to the connecting member to be shorter, thereby enabling the fastener to more securely connect the connecting member to the fixed portion.
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Description

Container with raised floor

[0001] Cross-referencing

[0002] This disclosure claims priority to Chinese Patent Application No. 202520175653.7, filed on January 24, 2025, entitled "Container with Raised Floor", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of containers, and more specifically to containers with raised floors. Background Technology

[0004] Traditional bulk cargo containers have certain limitations in loading and unloading cargo. Moving goods usually requires manual driving, which increases the labor intensity of operators. Especially during bulk cargo unloading, containers need to be tilted to allow goods to flow out, which becomes particularly difficult when customers cannot provide tilting facilities.

[0005] Therefore, this disclosure provides a container with a raised floor to at least partially solve the above-mentioned problems.

[0006] Public content

[0007] The disclosure section introduces a series of simplified concepts, which will be further explained in detail in the detailed embodiments section. This disclosure section is not intended to limit the key features and essential technical features of the claimed technical solutions, nor is it intended to determine the scope of protection of the claimed technical solutions.

[0008] To at least partially solve the above-mentioned technical problems, this disclosure provides a container with a raised floor, the container comprising:

[0009] The base frame includes bottom side beams, bottom cross beams and connectors. The ends of the bottom cross beams are connected to the bottom side beams, and the connectors overlap the upper surface of the bottom cross beams and are fixedly connected to the bottom cross beams.

[0010] The raised floor includes multiple movable parts, fixed parts, and seals. The fixed parts overlap the upper surface of the connector and are located at the end of the raised floor near the bottom side beam. The movable parts are located on the side of the fixed parts away from the bottom side beam. Along the width direction of the container, the seals are located between the fixed parts and the movable parts, with the upper surface of the fixed parts above the seals. Along the length direction of the container, the movable parts are reciprocally movable relative to the fixed parts.

[0011] According to the container with a movable floor disclosed herein, the movable floor allows for the unloading of bulk cargo without tipping the container, making the unloading operation convenient. The connectors support the movable floor while increasing the strength of the underframe. Furthermore, the connectors overlap the upper surface of the bottom crossbeam, and the fixing part overlaps the upper surface of the connector, shortening the length of the fasteners connecting the fixing part and the connector, thus enabling a more secure connection between the connector and the fixing part. The sealing element seals the gap between the fixing part and the movable part. The upper surface of the fixing part is located above the sealing element, allowing the fixing part to shield the sealing element and protect it.

[0012] Optionally, the connector is attached to the bottom side beam.

[0013] Optionally, the bottom side beam includes a vertical wall, which includes a first inclined portion inclined in the height direction of the container, and the top end of the first inclined portion is further away from the center of the underframe relative to the bottom end of the first inclined portion in the width direction of the container.

[0014] Optionally, the vertical wall also includes a straight section, the top of which is connected to the bottom of the first inclined section, and a connector is connected to the inner side of the straight section.

[0015] Optionally, the bottom side beam can be a bent or tubular component.

[0016] Optionally, the base frame also includes a threshold, with the raised floor located above the threshold.

[0017] The container also includes corner posts, which extend along the width of the container, with the ends of the thresholds extending to the outer side of the fixing part away from the center of the underframe, and connecting to the corner posts.

[0018] The container also includes corner post reinforcements, which are located between the fixing part and the corner posts along the width direction of the container and connect the fixing part and the corner posts. The bottom end of the corner post reinforcements is connected to the upper surface of the sill.

[0019] Optionally, the container also includes a sealing plate that is connected to the end face of the bottom side beam and the corner post reinforcement to close the end notch of the bottom side beam.

[0020] Optionally, the end plate does not protrude to the inside of the bottom side beam.

[0021] Optionally, the corner post reinforcement includes a top plate, a side plate, and an end plate, with any two of the side plates, top plate, and end plates being perpendicular. The side plates are connected to the fixing part, and the end plates and bottom side beams are spaced apart. The upper surface of the top plate is not lower than the upper surface of the fixing part.

[0022] Optionally, the container also includes sidewalls, the bottom of which overlaps with the bottom side beams;

[0023] The corner posts include outer corner posts and inner corner posts. One end of the corner post reinforcement along the width direction of the container is connected to the inner corner post. A portion of the outer corner post extends and protrudes towards the center of the underframe along the width direction of the container to form a sealing plate. The outer corner post is connected to the inner side of the side wall to close the end of the side wall.

[0024] Optionally, one end of the connector is located above the threshold and is fixedly connected to the upper surface of the threshold.

[0025] Optionally, the container also includes end walls and ramps, the ramps having a second inclined portion inclined in the height direction of the container and along the length direction of the container, the top of the second inclined portion being further away from the center of the underframe than the bottom of the second inclined portion, the top of the second inclined portion being connected to the end wall, and the bottom of the second inclined portion being located above the raised floor and connected to the raised floor.

[0026] Optionally, the container also includes wear-resistant components, with the bottom of the ramps overlapping the raised floor via these components.

[0027] Optionally, the container may also include reinforcing ribs that are connected to the ramps and end walls. Attached Figure Description

[0028] To make the advantages of this disclosure more readily apparent, the present disclosure, which has been briefly described above, will be described in more detail with reference to the specific embodiments shown in the accompanying drawings. It will be understood that these drawings depict only typical embodiments of the present disclosure and should not be considered as limiting its scope of protection. The present disclosure is described and explained with additional features and details through the drawings.

[0029] Figure 1 is a partial schematic diagram of the bottom side beam of a cross-sectional view of a container body according to a preferred embodiment of the present disclosure.

[0030] Figure 2 is a partial schematic diagram of the corner of the door end of the perspective view of the container body in Figure 1;

[0031] Figure 3 is a partial schematic diagram of the front view of the container body of Figure 2 at the corner of the door end, wherein the movable floor is not shown;

[0032] Figure 4 is a partial schematic diagram of the corner of the door end of the top sectional view of the container body in Figure 2;

[0033] Figure 5 is a three-dimensional schematic diagram of the corner post reinforcement of the container in Figure 1; and

[0034] Figure 6 is a partial schematic diagram of the bottom end of the end wall of the main sectional view of the container body in Figure 1.

[0035] Explanation of reference numerals in the attached drawings: 110: Base frame; 111: Threshold; 112: Bottom side beam; 113: Vertical wall; 114: First inclined section; 115: Straight section; 116: Support wall; 117: Bottom wall; 120: Side wall; 130: Raised floor; 131: Fixed section; 132: Movable section; 140: Connector; 150: Corner post; 151: Outer corner post; 152: Inner corner post; 153: Sealing plate; 154: First wall; 155: Second wall; 160: Corner post reinforcement; 161: Top plate; 162: End plate; 163: Side plate; 170: End wall; 180: Inclined plate; 181: Second inclined section; 182: Vertical section; 183: Horizontal section; 190: Wear-resistant part; 191: Reinforcing rib; 192: Support beam; 193: Bottom beam; 194: Third wall; 195: Sealing element. Detailed Implementation

[0036] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of this disclosure. However, it will be apparent to those skilled in the art that embodiments of this disclosure may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with embodiments of this disclosure.

[0037] The preferred embodiments of this disclosure will now be described with reference to the accompanying drawings. It should be noted that the terms "upper," "lower," and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0038] In this document, ordinal numbers such as “first” and “second” used in this disclosure are merely identifiers and do not include any other meaning, such as a specific order.

[0039] To fully understand the embodiments of this disclosure, detailed structures will be presented in the following description. It is obvious that implementation of the embodiments of this disclosure is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this disclosure are described in detail below; however, in addition to these detailed descriptions, this disclosure may include other embodiments.

[0040] This disclosure provides a container with a movable floor for transporting granular bulk cargo. The container has end doors. A portion of the container floor is reciprocating along the length of the container body (the left-right direction in FIG. 6, i.e., the length of the bottom side beam 112), thereby unloading the bulk cargo loaded inside the container. The vertical wall 113 of the bottom side beam 112 has a first inclined portion 114, thereby reducing the accumulation of bulk cargo on the sides of the container.

[0041] Please refer to Figures 1 to 6. The container includes a container body. The container body includes a base frame 110. The base frame 110 includes bottom side beams 112 and bottom crossbeams 193. Along the width direction of the container body (the left-right direction in Figure 1, which is also the length direction of the sill 111 mentioned later), the bottom side beams 112 are located on the side of the base frame 110. Along the length direction of the container body (that is, the length direction of the bottom side beams 112), the bottom crossbeams 193 are located between the two ends of the bottom side beams 112. Along the width direction of the container body, the bottom crossbeams 193 are located between two bottom side beams 112. There are multiple bottom crossbeams 193. The multiple bottom crossbeams 193 are arranged sequentially at intervals along the length direction of the container body. The width direction of the container body is the width direction of the container. The length direction of the container body is the length direction of the container. The height direction of the container body is the height direction of the container.

[0042] As shown in Figures 1 and 3, the bottom side beam 112 includes an upright wall 113, a bottom wall 117, and a supporting wall 116. The planes containing the bottom wall 117 and the supporting wall 116 are both approximately parallel to the horizontal direction. The bottom wall 117 is located below the supporting wall 116. The top of the upright wall 113 is connected to one end of the supporting wall 116. The bottom end of the upright wall 113 is connected to one end of the bottom wall 117. Along the width direction of the housing, both the supporting wall 116 and the bottom wall 117 are located on the outer side of the upright wall 113, away from the center of the base frame 110. Therefore, the bottom side beam 112 has high strength.

[0043] The upright wall 113 includes a first inclined portion 114. The plane containing the first inclined portion 114 is inclined in the height direction of the box (the vertical direction in FIG. 1, which is the length direction of the corner post). Along the width direction of the box, the top end of the first inclined portion 114 is further away from the center of the base frame 110 than the bottom end of the first inclined portion 114. The support wall 116 is connected to the top end of the first inclined portion 114. In this way, the arrangement of the first inclined portion 114 can reduce the accumulation of loose goods on the side of the box.

[0044] Furthermore, the bottom side beam 112 is a bent component formed by bending sheet metal. The bottom side beam 112 is a one-piece molded structure. Therefore, the structure of the bottom side beam 112 is simple.

[0045] It is understood that, in embodiments not shown, the cross-sectional shape of the bottom side beam (which is perpendicular to the length direction of the box) can also be other shapes. For example, the bottom side beam can also be constructed as a tubular member with a circumferentially closed annular cross-section. This results in high strength for the bottom side beam.

[0046] As shown in Figure 1, the enclosure also includes a side wall 120. The side wall 120 is located above the support wall 116. The bottom end of the side wall 120 overlaps the upper surface of the support wall 116.

[0047] The enclosure also includes a movable floor 130. The movable floor 130 includes a fixed portion 131 and a movable portion 132. The length direction of the fixed portion 131 is parallel to the length direction of the enclosure. The fixed portion 131 is connected via a connector 140 (described later) to the inner side of the upright wall 113 near the center of the base frame 110 along the width direction of the enclosure. Along the width direction of the enclosure, the fixed portion 131 is located at the end of the movable floor 130 near the bottom side beam 112. Along the width direction of the enclosure, the movable portion 132 is located on the side of the fixed portion 131 away from the bottom side beam 112. Along the length direction of the enclosure, the movable portion 132 is reciprocally connected to the fixed portion 131 relative to the fixed portion 131.

[0048] Specifically, there are multiple movable sections 132. Each movable section 132 includes floor strips. The length direction of the floor strips is parallel to the length direction of the container. The floor strips can reciprocate relative to the fixed section 131 along the length direction of the container. The floor strips of the multiple movable sections 132 are spliced ​​together along the width direction of the container. The multiple floor strips include a first floor strip and a second floor strip. The movement direction of the first floor strip is opposite to that of the second floor strip. Alternatively, when one of the first and second floor strips moves, the other stops. In this way, the reciprocating movement of the floor strips allows the loose goods inside the container to be gradually unloaded. Therefore, the loose goods can be unloaded without flipping the container, making the unloading operation convenient.

[0049] Referring to Figure 1, the raised floor 130 also includes a seal 195. The seal 195 can be a sealing strip. Along the width of the enclosure, the seal 195 is provided between the movable part 132 and the fixed part 131. The seal 195 connects one of the movable part 132 and the fixed part 131 and abuts against the other to seal the gap between them. A seal 195 is also provided between two adjacent movable parts 132, connecting one of them and abutting against the other to seal the gap between them.

[0050] As shown in Figure 1, the upper surface of the fixing part 131 is located above the sealing member 195. The sealing member 195 is located below the upper surface of the movable part 132 and below the upper surface of the fixing part 131. Thus, the sealing member 195 is located inside the whole formed by the multiple movable parts 132 and the fixing part 131, and below the upper surface of the whole formed by the multiple movable parts 132 and the fixing part 131. Therefore, the sealing member 195 can be blocked.

[0051] Furthermore, a groove is provided on the side of the movable part 132 facing the fixed part 131, and on one of the two sides of two adjacent movable parts 132 facing each other. The groove is recessed along the width direction of the housing. The seal 195 snaps into the groove. The side of the movable part 132 facing the fixed part 131 and having the groove is fitted to the side of the fixed part 131. In two adjacent movable parts 132, the side of the movable part 132 with the groove is fitted to the side of the adjacent movable part 132. This facilitates the installation of the seal 195.

[0052] Optionally, as shown in FIG1, the base frame 110 further includes a connector 140 and fasteners (fasteners may be bolts or rivets, not shown). The connector 140 extends longitudinally along the length of the housing. The connector 140 is fixedly (e.g., welded) to the inner side of the vertical wall 113. The connector 140 is located above the bottom crossbeam 193. The connector 140 overlaps the upper surface of the bottom crossbeam 193. The connector 140 is fixedly connected (e.g., welded) to the upper surface of the bottom crossbeam 193. A fixing portion 131 overlaps the upper surface of the connector 140 so that the connector 140 supports the raised floor 130. Thus, the connector 140 is located above the bottom crossbeam 193. Along the height direction of the housing, a portion of the connector 140 extends into the fixing portion 131. The upper surface of the connector 140 abuts against the fixing portion 131. The fixing portion 131 can be connected to the connector 140 by fasteners. Thus, the connector 140 can increase the strength of the base frame 110. Furthermore, in the alternative where the fixing part 131 is connected to the bottom crossbeam 193 via fasteners, and the fixing part 131 is connected to the connector 140 via fasteners, the fasteners are shorter and can more securely connect the connector 140 and the fixing part 131.

[0053] Furthermore, the connector 140 can be a square tube. Therefore, the connector 140 has high strength.

[0054] It is understood that, in embodiments not shown, the connector may also be of other shapes. For example, the cross-section of the connector (which is perpendicular to the length direction of the housing) may be L-shaped. The connector is acceptable as long as it can connect the bottom crossbeam, the bottom side beam, and the fixing part, thereby supporting the fixing part.

[0055] In this embodiment, the movable floor 130 allows for easy unloading of bulk goods without flipping the container. The connector 140 supports the movable floor 130 while increasing the strength of the base frame 110. Furthermore, the connector 140 overlaps the upper surface of the bottom crossbeam 193, and the fixing part 131 overlaps the upper surface of the connector 140, which shortens the length of the fasteners connecting the fixing part 131 and the connector 140, thereby making the fasteners more securely connect the connector 140 and the fixing part 131. The seal 195 seals the gap between the fixing part 131 and the movable part 132. The upper surface of the fixing part 131 is located above the seal 195, so the fixing part 131 can cover the seal 195, thereby protecting the seal 195.

[0056] Optionally, the vertical wall 113 also includes a straight section 115. The plane containing the straight section 115 is perpendicular to the width direction of the housing. One end of the bottom wall 117 is connected to the bottom end of the straight section 115. The top end of the straight section 115 is connected to the bottom end of the first inclined section 114. A connector 140 is connected to the inner side of the straight section 115 along the width direction of the housing, near the center of the base frame 110. Therefore, the bottom side beam 112 has high strength.

[0057] It is understood that, in embodiments not shown, there may be a gap between the connector and the bottom side beam.

[0058] Optionally, as shown in Figures 2 and 3, the base frame 110 also includes a sill 111. A raised floor 130 is located above the sill 111. One end of the connector 140, along the length of the container, is located above the sill 111 and is fixedly (e.g., welded) to the upper surface of the sill 111. The container also includes corner posts 150. Along the width of the container, the end of the sill 111 extends to the outer side of the upright wall 113 away from the center of the base frame 110. Thus, along the width of the container, the end of the sill 111 extends to the outer side of the fixing portion 131 away from the center of the base frame 110. The end of the sill 111 is connected to the corner post 150. The end face of the bottom side beam 112 abuts against and connects to the sill 111.

[0059] The container also includes corner post reinforcement 160. Along the width direction of the container body, corner post reinforcement 160 is located between the fixing part 131 and the corner post 150. Along the width direction of the container body, one end of corner post reinforcement 160 is connected to the fixing part 131 and the connector 140, and the other end of corner post reinforcement 160 is connected to the corner post 150. The bottom end of corner post reinforcement 160 is connected to the upper surface of the sill 111. Corner post reinforcement 160 is connected to the end face of the bottom side beam 112. The upper surface of corner post reinforcement 160 is not lower than the upper surface of the fixing part 131. Thus, corner post reinforcement 160 can fill the groove between the fixing part 131 and the corner post 150, preventing loose cargo from accumulating in the groove. Furthermore, corner post reinforcement 160 can extend the bottom side beam 112, increasing the strength of the underframe 110.

[0060] Optionally, referring to Figures 1 to 3, the support wall 116 is positioned higher than the corner post reinforcement 160 along the height direction of the container. The container also includes a sealing plate 153. The plane of the sealing plate 153 is perpendicular to the length direction of the container. The sealing plate 153 is located above the sill 111. The lower end of the sealing plate 153 is connected to the sill 111. Along the length direction of the container, the sealing plate 153 is located between the end face of the bottom side beam 112 and the corner post reinforcement 160. The sealing plate 153 connects to the end face of the bottom side beam 112 and the corner post reinforcement 160. The sealing plate 153 closes the end notch of the bottom side beam 112. This seals the end face of the bottom side beam 112. Furthermore, it increases the strength of the bottom side beam 112.

[0061] Furthermore, the shape of the sealing plate 153 corresponds to the shape of the upper end of the bottom side beam 112. Along the width direction of the box, the sealing plate 153 does not protrude to the inner side of the vertical wall 113 near the center of the base frame 110. This avoids the accumulation of loose goods at the sealing plate 153.

[0062] Optionally, the corner post 150 includes an outer corner post 151 and an inner corner post 152. The inner corner post 152 is connected to the inner side of the outer corner post 151 near the center of the base frame 110 along the width direction of the housing. One end of the corner post reinforcement 160 along the width direction of the housing is connected to the inner corner post 152. A portion of the outer corner post 151 extends and protrudes towards the center of the base frame 110 along the width direction of the housing to form a sealing plate 153.

[0063] The outer corner post 151 connects to the inner surface of the side wall 120 to close the end of the side wall 120. Specifically, the outer corner post 151 includes a first wall 154, a second wall 155, and a third wall 194. The plane of the first wall 154 is perpendicular to the length direction of the box. The plane of the second wall 155 is perpendicular to the width direction of the box. The lower end of the first wall 154 extends along the width direction of the box and protrudes to form a sealing plate 153. One end of the portion of the first wall 154 above the sealing plate 153, along the width direction of the box, connects to one end of the second wall 155. Along the length direction of the box, the second wall 155 is located on the side of the first wall 154 near the center of the box. The second wall 155 is attached to and connected to the inner surface of the side wall 120 to close the end of the side wall 120. The plane of the third wall 194 is perpendicular to the width direction of the box. The end of the first wall 154 away from the second wall 155 connects to one end of the third wall 194. Along the length of the container, the third wall 194 is located on the outer side of the first wall 154, away from the center of the container. Along the width of the container, the inner corner post 152 is located on the inner side of the third wall 194, closer to the center of the container. One end of the inner corner post 152 is connected to the third wall 194. The other end of the inner corner post 152 is connected to the first wall 154. Thus, the outer corner post 151 forms the sealing plate 153, reducing the number of components in the container. Furthermore, the outer corner post 151 has high strength.

[0064] Furthermore, both the outer corner post 151 and the inner corner post 152 are bent parts formed by bending sheet metal. Both the outer corner post 151 and the inner corner post 152 are integrally formed structures.

[0065] Optionally, referring to Figures 2 and 5, the corner post reinforcement 160 includes a top plate 161, a side plate 163, and an end plate 162. Any two of the side plate 163, top plate 161, and end plate 162 are perpendicular. The plane containing the top plate 161 is perpendicular to the height direction of the housing. The plane containing the side plate 163 is perpendicular to the width direction of the housing. The plane containing the end plate 162 is perpendicular to the length direction of the housing. The top ends of both the side plate 163 and the end plate 162 are connected to the end of the top plate 161. Along the length direction of the housing, the end plate 162 is connected to the end of the top plate 161 away from the center of the base frame 110, and the end of the top plate 161 away from the end plate 162 is connected to the sealing plate 153. Thus, the end plate 162 and the bottom side beam 112 are spaced apart. Along the width of the enclosure, the side plate 163 is connected to the end of the top plate 161 near the center of the base frame 110, and the end of the top plate 161 away from the side plate 163 is connected to the inner corner post 152. The side plate 163 is attached and connected to the fixing part 131 and the connector 140. The bottom ends of the end plate 162 and the side plate 163 are both connected to the upper surface of the sill 111. The upper surface of the top plate 161 is not lower than the upper surface of the fixing part 131. Thus, the corner post reinforcement 160 has a simple structure and high strength.

[0066] Optionally, as shown in Figure 6, the container also includes an end wall 170 and a ramp 180. The end wall 170 is located at the end of the container away from the end door. The ramp 180 has a second inclined portion 181. The second inclined portion 181 is inclined in the height direction of the container. Along the length direction of the container, the top end of the second inclined portion 181 is further away from the center of the base frame 110 than the bottom end of the second inclined portion 181. The top end of the second inclined portion 181 is connected to the end wall 170. The bottom end of the second inclined portion 181 is located above the movable floor 130. The bottom end of the second inclined portion 181 overlaps with the movable floor 130 via a wear-resistant member 190 (described later). This prevents loose goods from accumulating at the end wall 170 of the container. Furthermore, the ramp 180 provides space for the reciprocating movement of the movable portion 132 of the movable floor 130.

[0067] The container also includes a wear-resistant component 190. The wear-resistant component 190 can be made of plastic. The bottom end of the ramp 180 overlaps with the raised floor 130 via the wear-resistant component 190. This reduces wear between the raised floor 130 and the ramp 180.

[0068] Further, referring to Figure 6, the inclined plate 180 also includes a vertical portion 182 and a horizontal portion 183. The plane containing the vertical portion 182 is perpendicular to the length direction of the box body. The bottom end of the vertical portion 182 is connected to the upper end of the second inclined portion 181. The vertical portion 182 is fitted to the inner surface of the end wall 170. The vertical portion 182 is welded to the inner surface of the end wall 170. Thus, the contact area between the inclined plate 180 and the end wall 170 is large, and the connection strength is high.

[0069] The plane containing the horizontal section 183 is perpendicular to the height direction of the housing. The horizontal section 183 is located between the lower end of the second inclined section 181 and the end wall 170. The horizontal section 183 is connected to the lower end of the second inclined section 181. The bottom surface of the horizontal section 183 is attached to and connected to the wear-resistant component 190. As a result, the contact area between the wear-resistant component 190 and the inclined plate 180 is large, and the connection strength is high.

[0070] Optionally, as shown in Figure 6, the container also includes reinforcing ribs 191. The plane of the reinforcing ribs 191 is perpendicular to the width direction of the container. The reinforcing ribs 191 are connected to the ramp 180 and the end wall 170. This increases the strength of the ramp 180.

[0071] Optionally, as shown in Figure 6, the base frame 110 also includes a support beam 192. The length direction of the support beam 192 is parallel to the length direction of the threshold. Along the length direction of the box body, the support beam 192 is located between the two ends of the bottom side beams 112. Along the width direction of the box body, the support beam 192 is located between two bottom side beams 112. One end of the support beam 192 is connected to one bottom side beam 112, and the other end of the support beam 192 is connected to the other bottom side beam 112. The cross-section of the support beam 192 (which is perpendicular to the length direction of the support beam 192) is rectangular. The end of the raised floor 130 near the end wall 170 overlaps with the support beam 192. Therefore, the base frame 110 has high strength.

[0072] This disclosure has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this disclosure to the described embodiments. Furthermore, those skilled in the art will understand that this disclosure is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this disclosure, all of which fall within the scope of protection claimed by this disclosure. The scope of protection of this disclosure is defined by the appended claims and their equivalents.

[0073] 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 to which this disclosure pertains. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this disclosure. Terms such as “component” as used herein may refer to a single part or a combination of multiple parts. Terms such as “installation” or “setup” as used herein may refer to a component being directly attached to another component or a 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.

Claims

1. A container having a raised floor, characterized in that, The container includes: The base frame includes a bottom side beam, a bottom cross beam, and a connector. The end of the bottom cross beam is connected to the bottom side beam, and the connector overlaps the upper surface of the bottom cross beam and is fixedly connected to the bottom cross beam. The raised floor includes multiple movable parts, fixed parts, and a seal. The fixed parts overlap the upper surface of the connector and are located at the end of the raised floor near the bottom side beam. The movable parts are located on the side of the fixed parts away from the bottom side beam along the width direction of the container. The seal is located between the fixed parts and the movable parts, and the upper surface of the fixed parts is located above the seal. Along the length direction of the container, the movable parts are reciprocally movable relative to the fixed parts.

2. The container of claim 1, wherein, The connector is attached to the bottom side beam.

3. The container of claim 2, wherein, The bottom side beam includes a vertical wall, which includes a first inclined portion that is inclined in the height direction of the container. Along the width direction of the container, the top end of the first inclined portion is further away from the center of the base frame than the bottom end of the first inclined portion.

4. The container of claim 3, wherein, The vertical wall also includes a straight section, the top end of which is connected to the bottom end of the first inclined section, and the connector is connected to the inner side of the straight section.

5. The container according to any one of claims 1 to 4, characterized in that, The bottom side beam is a bent part or a tubular part.

6. The container according to claim 1, characterized in that, The base frame also includes a threshold, and the raised floor is located above the threshold. The container also includes corner posts, with the end of the threshold extending outward from the center of the fixing portion away from the base frame along the width direction of the container, and connecting to the corner posts. The container also includes corner post reinforcement members. Along the width direction of the container, the corner post reinforcement members are located between the fixing part and the corner post, and connect the fixing part and the corner post. The bottom end of the corner post reinforcement members is connected to the upper surface of the threshold.

7. The container of claim 6, wherein, The container also includes a sealing plate connected to the end face of the bottom side beam and the corner post reinforcement to close the end notch of the bottom side beam.

8. The container according to claim 7, characterized in that, The sealing plate does not protrude to the inside of the bottom side beam.

9. The container of claim 6, wherein, The corner post reinforcement includes a top plate, a side plate, and an end plate. Any two of the side plate, the top plate, and the end plate are perpendicular to each other. The side plate is connected to the fixing part. The end plate and the bottom side beam are spaced apart. The upper surface of the top plate is not lower than the upper surface of the fixing part.

10. The container of claim 7, wherein, The container also includes side walls, the bottom end of which overlaps with the bottom side beam; The corner post includes an outer corner post and an inner corner post. One end of the corner post reinforcement along the width direction of the container is connected to the inner corner post. A portion of the outer corner post extends and protrudes towards the center of the underframe along the width direction of the container to form the sealing plate. The outer corner post is connected to the inner side of the side wall to close the end of the side wall.

11. The container of claim 6, wherein, One end of the connector is located above the threshold and is fixedly connected to the upper surface of the threshold.

12. The container of claim 1, wherein, The container also includes an end wall and a ramp, the ramp having a second inclined portion that is inclined in the height direction of the container and along the length direction of the container. The top end of the second inclined portion is further away from the center of the underframe than the bottom end of the second inclined portion. The top end of the second inclined portion is connected to the end wall, and the bottom end of the second inclined portion is located above the raised floor and connected to the raised floor.

13. The container of claim 12, wherein, The container also includes wear-resistant components, and the bottom end of the ramp is connected to the raised floor via these wear-resistant components.

14. The container of claim 13, wherein, The container also includes reinforcing ribs that are connected to the ramp and the end wall.