Tank container

Abstract

The present invention provides a tank container, which includes a tank body and end frames respectively supporting both ends of the tank body, and the end of the tank body extends outward beyond the end frames; the end frames include corner posts, end bottom beams, bottom corner fittings and lower connection components. The lower connection components are arranged near the bottom of the tank body and include connecting plates and sealing plates. The connecting plates are arranged in pairs, and the sealing plates are connected between the outer edges of the two connecting plates. In the lower connection components of the end frames, the outer edges of the connecting plates are bent at the extending sections and transition sections, so that the sealing plates form an arc-shaped structure, and are connected to the end bottom beams through an arc transition at their bottom ends. Considering that the distance between the sealing plates at the connection of the extending sections and the tank body is equal in width, when the lower connection components cooperate with the corner posts and end bottom beams to stably support the tank body, the stress concentration between the connecting plates and the tank body can be reduced, and the stress can be better dispersed to the end bottom beams, thereby effectively ensuring the stability of the overall structure of the tank container.

Description

Technical Field

[0001] The present invention relates to the technical field of storage and transportation equipment, and particularly to a tank container. Background Art

[0002] Due to advantages such as multi-function and high efficiency, tank containers are widely used in the logistics industry. A tank container usually consists of a tank body and a frame. Generally, the frame includes end frames arranged front and back. The two ends of the tank body usually extend outwards beyond the front and back arranged end frames, and the end frames support the tank body. However, during actual transportation, stress concentration easily occurs at the contact between the end frame and the tank body, affecting the stability of the overall structure of the tank container, and thus unable to ensure the safety of the goods during transportation. Summary of the Invention

[0003] The purpose of the present invention is to solve the technical problem that in the existing tank container, stress concentration easily occurs at the contact between the end frame and the tank body, affecting the stability of the overall structure of the tank container, and thus unable to ensure the safety of the goods during transportation.

[0004] To solve the above technical problem, the present invention provides a tank container, which includes a tank body and end frames respectively supporting both ends of the tank body. The end of the tank body extends outwards beyond the end frames. The end frame includes corner posts, end lower beams, bottom corner fittings, and a lower connecting component. The corner posts are arranged in pairs. The end lower beam is connected between the bottom ends of the two corner posts. The bottom corner fittings are arranged in pairs, and the two bottom corner fittings are respectively arranged at both ends of the end lower beam to be connected with the bottom ends of the two corner posts. The lower connecting component is arranged near the bottom of the tank body. The lower connecting component includes connecting plates and a sealing plate. The connecting plates are arranged in pairs, and the two connecting plates are parallel and oppositely arranged. The top of the connecting plate is fixed to the corner post, and the bottom of the connecting plate is fixed to the end lower beam. The inner edge of the connecting plate is fixed to the outer wall of the tank body. The outer edge of the connecting plate includes a fixed section, an extending section, and a transition section connected in sequence from top to bottom. The fixed section is connected to the corner post. The extending section is arched outwards in a direction away from the tank body. The transition section is arched, and has a bending direction opposite to that of the extending section. The bottom end of the transition section is fixed to the top of the end lower beam. The sealing plate is connected between the outer edges of the two connecting plates. The top end of the sealing plate is fixed to the corner post, and the bottom end of the sealing plate extends to the end lower beam. The sealing plate bends along with the extending section and the transition section, and the distance between the part of the sealing plate connected to the extending section and the tank body is equal from top to bottom.

[0005] Optionally, the extending section and the transition section are reversely tangent and smoothly transition at the connection.

[0006] Optionally, the difference between the radius of the extension section and the radius of the cross-section of the tank body is 50 mm - 200 mm.

[0007] Optionally, the radius of the transition section is 30 mm - 150 mm.

[0008] Optionally, the outer edge of the connecting plate further includes a connecting section, which extends from the bottom end of the extension section to the bottom of the end lower beam; the connecting section is arranged on the outer side wall of the end lower beam, so that the bottom part of the connecting plate fits and fixes the outer side wall of the end lower beam.

[0009] Optionally, the connecting section is arc-shaped, and the bending direction of the connecting section is opposite to the bending direction of the transition section, so as to form an S-shaped structure with the transition section.

[0010] Optionally, the fixing section is L-shaped and bends towards the direction close to the tank body; the fixing section is arranged on the outer side wall of the corner post, so that the top part of the connecting plate fits and fixes on the outer side wall of the corner post.

[0011] Optionally, the inner edge of the connecting plate bends along with the arc-shaped outer wall of the tank body.

[0012] Optionally, the connecting plate includes a first connecting sub-plate and a second connecting sub-plate. The bottom end of the first connecting sub-plate is connected to the top end of the second connecting sub-plate. The inner edges of the first connecting sub-plate and the second connecting sub-plate are both fixed to the outer wall of the tank body; the outer edge of the first connecting sub-plate from top to bottom includes the fixing section and an arc-shaped first section connected in sequence. The outer edge of the second connecting sub-plate from top to bottom includes an arc-shaped second section and the transition section connected in sequence; the first section and the second section are connected to form the extension section.

[0013] Optionally, the first connecting sub-plate and the second connecting sub-plate are integrally formed into the connecting plate.

[0014] Optionally, the lower connecting assembly further includes a first strengthening box, which is fixed on the corner post and located between the two connecting plates; the top end of the sealing plate is fixed to the corner post through the first strengthening box, and the outer edge part at the top of the connecting plate is fixed to the first strengthening box.

[0015] Optionally, each end frame includes two sets of the lower connecting assemblies, and the two sets of the lower connecting assemblies are respectively arranged on both sides of the bottom of the tank body.

[0016] Optionally, the ends of the parts of the connecting plates in the two sets of the lower connecting assemblies located at the bottom of the tank body abut against each other.

[0017] Optionally, avoidance grooves are formed at the bottoms of both ends of the lower end beam, and the depth of the avoidance groove is less than the height of the lower end beam.

[0018] Optionally, the cross-sectional profile of the inner wall of the avoidance groove includes a first connecting section and a second connecting section that is bent and connected to the first connecting section. The end of the first connecting section is fixed to the bottom angle member, and an arc transition is formed between the first connecting section and the second connecting section.

[0019] Optionally, each end frame further includes a pair of second strengthening boxes, and the two second strengthening boxes are respectively arranged at the joints of the two corner columns and the two ends of the lower end beam, and the second strengthening boxes are correspondingly arranged above the avoidance grooves.

[0020] Optionally, the outer contour of the second strengthening box is a right triangle, and the two right sides of the second strengthening box are respectively fixed to the lower end beam and the corner column.

[0021] Optionally, the hypotenuse of the outer contour of the second strengthening box is arc-shaped.

[0022] Optionally, the outer side of the corner column is arranged inside the outer end face of the bottom angle member or flush with the outer end face of the bottom angle member.

[0023] Optionally, the outer side of the corner column extends beyond the outer end face of the bottom angle member.

[0024] As can be seen from the above technical solutions, the beneficial effects of the present invention are as follows:

[0025] In the lower connecting component of the end frame of the tank container of the present invention, the bending settings of the extending section and the transition section in the outer edge of the connecting plate make the sealing plate form an arc structure, and it is connected to the lower end beam through an arc transition at its bottom end. Considering that the distance between the connecting plate and the tank body is equal in width at the joint of the extending section of the sealing plate, while the lower connecting component cooperates with the corner column and the lower end beam to stably support the tank body, it can also reduce the stress concentration between the connecting plate and the tank body, so as to better disperse the stress to the lower end beam, thereby effectively ensuring the stability of the overall structure of the tank container. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of an embodiment of the tank container of the present invention;

[0027] Figure 2 is Figure 1 a cross-sectional view of the end part in the tank container shown;

[0028] Figure 3 is Figure 2 a schematic structural diagram of the lower connecting component in the tank container shown;

[0029] Figure 4 is Figure 1 a cross-sectional view of an end portion in another embodiment of the tank container shown;

[0030] Figure 5 is Figure 1 a cross-sectional view of another embodiment of an end portion in the tank container shown.

[0031] Explanation of reference numerals is as follows: 100, tank container; 10, tank body; 20, end frame; 21, corner post; 22, bottom end beam; 221, avoidance groove; 222, fixing plate; 23, bottom corner fitting; 24, lower connecting assembly; 241, connecting plate; 241a, first connecting sub-plate; 241b, second connecting sub-plate; 2411, fixed section; 2412, extending section; 2413, transition section; 2414, connecting section; 2415, first segment; 2416, second segment; 242, sealing plate; 243, first strengthening box; 25, second strengthening box; 26, top end beam; 27, top corner fitting. Detailed implementation manners

[0032] Typical implementation manners embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different implementation manners, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than to limit the present invention.

[0033] To further illustrate the principle and structure of the present invention, the preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0034] Referring to Figures 1 to 3 , an embodiment of the present application provides a tank container 100, which includes a tank body 10 and end frames 20 respectively supporting both ends of the tank body 10, and the end portions of the tank body 10 extend outwards beyond the end frames 20. In this embodiment, the end frame 20 includes corner posts 21, bottom end beams 22, bottom corner fittings 23, and a lower connecting assembly 24.

[0035] Among them, the corner posts 21 are arranged in pairs. The two corner posts 21 are substantially parallel. It can be understood that the two corner posts 21 can also be arranged at a certain angle. The bottom end beam 22 is connected between the bottom ends of the two corner posts 21. The bottom corner fittings 23 are arranged in pairs, and the two bottom corner fittings 23 are respectively arranged at both ends of the bottom end beam 22 to be connected to the two corner posts 21.

[0036] The lower connecting assembly 24 is arranged close to the bottom of the tank body 10, and the lower connecting assembly 24 includes a connecting plate 241 and a sealing plate 242. It can be understood that in addition to the lower connecting assembly 24, the tank container 100 further includes a connecting assembly arranged in the upper middle part of the tank body 10 for connecting and fixing the upper structure of the tank body 10.

[0037] Specifically, the connecting plates 241 are arranged in pairs, and the two connecting plates 241 are arranged in parallel and opposite to each other. The top of the connecting plate 241 is fixed to the corner post 21, and the bottom of the connecting plate 241 is fixed to the end lower beam 22. The inner edge of the connecting plate 241 is fixed to the outer wall of the tank body 10, and the outer edge of the connecting plate 241 includes a fixed section 2411, an extension section 2412, and a transition section 2413 that are sequentially connected from top to bottom. The fixed section 2411 is connected to the corner post 21, and the extension section 2412 is arched outward in a direction away from the tank body 10. The transition section 2413 is arc-shaped and has a bending direction opposite to that of the extension section 2412, and the bottom end of the transition section 2413 is fixed to the top of the end lower beam 22.

[0038] The sealing plate 242 is connected between the outer edges of the two connecting plates 241. The top end of the sealing plate 242 is fixed to the corner post 21, and the bottom end of the sealing plate 242 extends to the end lower beam 22. The sealing plate 242 bends conforming to the extension section 2412 and the transition section 2413, and the distance between the part of the sealing plate 242 connected to the extension section 2412 and the tank body 10 is equal from top to bottom.

[0039] In this embodiment, the bending settings of the extension section 2412 and the transition section 2413 on the outer edge of the connecting plate 241 cause the sealing plate 242 to form an arc-shaped structure and achieve connection with the end lower beam 22 through an arc transition at its bottom end. Combining with the equal width of the distance between the sealing plate 242 and the tank body 10 at the connection of the extension section 2412, while enabling the lower connecting component 24 to stably support the tank body 10 in combination with the corner post 21 and the end lower beam 22, it can also reduce the stress concentration between the connecting plate 241 and the tank body 10, so as to disperse the stress to the end lower beam 22, thereby effectively ensuring the stability of the overall structure of the tank container 100.

[0040] The extension section 2412 and the transition section 2413 in this embodiment are reversely tangent and smoothly transition at the connection. This setting ensures the smoothness of the outer edge of the connecting plate 241 and can ensure the combined action of the connecting plate 241 and the sealing plate 242 to reduce the support stress at the connection of the tank body 10, and ensure the effective support of the end frame 20 for the tank body 10.

[0041] In this embodiment, the difference between the radius of the extension section 2412 and the radius of the cross-section of the tank body 10 is 50 mm - 200 mm, and the radius of the transition section 2413 is 30 mm - 150 mm. This setting not only ensures the equal width of the distance between the sealing plate 242 and the tank body 10 at the connection of the extension section 2412, but also enables the stress borne by the lower connecting component 24 to be better dispersed to the end lower beam 22, thereby ensuring the stability of the overall structure of the tank container 100.

[0042] In this embodiment, the fixed section 2411 is L-shaped and bends towards the direction close to the tank body 10. The fixed section 2411 is arranged on the outer side wall of the corner post 21 so that the top part of the connecting plate 241 fits and is fixed on the outer side wall of the corner post 21. This setting can ensure the connection strength between the connecting plate 241 and the corner post 21, ensure the stability of the connection between the connecting plate 241 and the corner post 21, and thus realize the stability of the overall structure of the end frame 20.

[0043] In addition, the inner edge of the connecting plate 241 in this embodiment bends along with the arc-shaped outer wall of the tank body 10 so that the connecting plate 241 can be stably fixed on the outer wall of the tank body 10, ensure the stability of the connection between the connecting plate 241 and the tank body 10, and thus ensure that the end frame 20 can stably support the tank body 10.

[0044] Furthermore, the outer edge of the connecting plate 241 further includes a connecting section 2414, and the connecting section 2414 extends from the bottom end of the extending section 2412 to the bottom of the end lower beam 22. The connecting section 2414 is arranged on the outer side wall of the end lower beam 22 so that the bottom part of the connecting plate 241 fits and is fixed on the outer side wall of the end lower beam 22.

[0045] The bottom of the connecting plate 241 fits and is fixed on the outer side wall of the end lower beam 22, increasing the connection area between the connecting plate 241 and the end lower beam 22. This not only ensures the connection strength between the connecting plate 241 and the end lower beam 22, but also can better disperse the stress borne by the lower connecting component 24 to the end lower beam 22, ensuring the stable support of the end frame 20 for the tank body 10.

[0046] In this embodiment, the connecting section 2414 is arc-shaped. The bending direction of the connecting section 2414 is opposite to that of the transition section 2413 to form an S-shaped structure with the transition section 2413.

[0047] This setting enables the connecting plate 241 to achieve an arc transition with the end lower beam 22 through the transition section 2413 and connect with the end lower beam 22 through the connecting section 2414 with the opposite bending direction. While reducing stress concentration, it can increase the contact area between the connecting plate 241 and the end lower beam 22 to transfer the stress borne by the connecting plate 241 to the end lower beam 22, ensuring the stability of the overall structure of the tank container 100.

[0048] Furthermore, the connecting plate 241 in this embodiment includes a first connecting sub-plate 241a and a second connecting sub-plate 241b. The bottom end of the first connecting sub-plate 241a is connected to the top end of the second connecting sub-plate 241b, and the inner edges of the first connecting sub-plate 241a and the second connecting sub-plate 241b are both fixed to the outer wall of the tank body 10.

[0049] Among them, the outer edge of the first connecting sub-board 241a includes a fixed section 2411 and a first segmented section 2415 that are sequentially connected from top to bottom, and the first segmented section 2415 is arc-shaped. The outer edge of the second connecting sub-board 241b includes a second segmented section 2416, a transition section 2413, and a connecting section 2414 that are sequentially connected from top to bottom, and the second segmented section 2416 is arc-shaped.

[0050] In this embodiment, the arc-shaped first segmented section 2415 is connected to the arc-shaped second segmented section 2416 to form an extension section 2412 of the connecting board 241. By dividing the connecting board 241 into two parts, namely the first connecting sub-board 241a and the second connecting sub-board 241b, the special-shaped connecting board 241 can be separately manufactured to ensure the smoothness of the two side edges of the connecting board 241.

[0051] In addition, the first connecting sub-board 241a and the second connecting sub-board 241b can be integrally formed into the connecting board 241 to ensure the overall structural strength of the connecting board 241, ensure that the connecting board 241 together with the sealing board 242 effectively supports the tank body 10, and thus ensure the stability of the overall structure of the tank container 100.

[0052] Furthermore, the lower connecting assembly 24 of this embodiment further includes a first strengthening box 243. The first strengthening box 243 is fixed inside the corner post 21 and is located between the two connecting boards 241.

[0053] In this embodiment, the outer contour of the first strengthening box 243 is a right triangle, and one of the right-angle sides of the first strengthening box 243 is fixed on the corner post 21 so that the first strengthening box 243 is fixedly connected to the corner post 21. The top end of the sealing board 242 is connected to the bottom of the first strengthening box 243 to be fixed through the first strengthening box 243 and the corner post 21. At the same time, the outer edge part of the top of the connecting board 241 is fixed to the first strengthening box 243, that is, the bent segmented section of the fixed section 2411 is fixed to the first strengthening box 243. By setting the first strengthening box 243, the stability of the connection between the connecting board 241 and the sealing board 242 at the corner post 21 is improved.

[0054] The top end of the sealing board 242 is fixed to the corner post 21 through the first strengthening box 243, and its bottom end extends to the end lower beam 22. The middle part of the sealing board 242 bends along with the extension section 2412 and the transition section 2413 of the connecting board 241, so that the sealing board 242 and the connecting boards 241 on both sides of it enclose a structure similar to a channel steel, so that the lower connecting assembly 24 acts together to effectively support the tank body 10 and ensure the stability of the overall structure of the tank container 100.

[0055] Further, each end frame 20 of this embodiment includes two sets of lower connecting components 24, that is, the tank container 100 includes a total of four sets of lower connecting components 24. The four sets of lower connecting components 24 work together to effectively support the two ends of the tank body 10 at the bottom of the tank body 10.

[0056] In each end frame 20, the two sets of lower connecting components 24 are respectively arranged on both sides of the bottom of the tank body 10. The two sets of lower connecting components 24 are respectively arranged on both sides of the bottom of the tank body 10 to support the end of the tank body 10 in combination with the end sill 22 and the corner post 21, ensuring the structural stability of the tank body 10.

[0057] In this embodiment, in each end frame 20, the ends of the parts of the connecting plates 241 in the two sets of lower connecting components 24 located at the bottom of the tank body 10 are abutted against each other. This setting can connect the two opposite connecting plates 241 in the two sets of lower connecting components 24 into an integral structure, making the structural strength of the two sets of lower connecting components 24 stronger, thereby ensuring the stable support of the end frame 20 for the end of the tank body 10.

[0058] Further, avoiding grooves 221 are provided at the bottoms of both ends of the end sill 22 of this embodiment. The avoiding grooves 221 are used to avoid the fixed locks on the vehicle frame, so as to prevent the end sill 22 from being damaged due to collision when the tank container 100 is placed on the vehicle frame.

[0059] In this embodiment, the depth of the avoiding groove 221 is less than the height of the end sill 22. This setting can prevent the end sill 22 from being completely cut off at the avoiding groove 221, so as to increase the overall structural strength of the end sill 22 and the avoiding groove 221. In this embodiment, the height of the end sill 22 is 100 mm, and the depth of the avoiding groove 221 is 80 mm.

[0060] The cross-sectional profile of the avoiding groove 221 of this embodiment includes a first connecting section and a second connecting section. Among them, the end of the first connecting section is fixed to the bottom corner fitting 23, so as to enclose a space similar to a right trapezoid between the avoiding groove 221 and the bottom corner fitting 23.

[0061] The first connecting section and the second connecting section are bent and connected, and the included angle between the first connecting section and the second connecting section is an obtuse angle. The first connecting section and the second connecting section are in an arc transition, which can reduce the stress concentration at the avoiding groove 221 while ensuring the structural strength of the end sill 22 and the avoiding groove 221.

[0062] The end sill 22 of this embodiment further includes a fixing plate 222, and the fixing plate 222 is closed at the avoiding groove 221 to ensure the structural stiffness of the end sill 22 at the avoiding groove 221. The fixing plate 222 is in a bent state, and the fixing plate 222 is in an arc transition at the connection of the first connecting section and the second connecting section.

[0063] Further, each end frame 20 of this embodiment further includes a pair of second reinforcing boxes 25, and the two second reinforcing boxes 25 are respectively arranged at the joints of the two corner posts 21 and the two ends of the end lower beam 22. The second reinforcing box 25 is correspondingly arranged above the avoidance groove 221 to strengthen the strength of the end lower beam 22 at the avoidance groove 221.

[0064] In this embodiment, the outer contour of the second reinforcing box 25 is a right triangle. The two right sides of the second reinforcing box 25 are respectively fixed to the end lower beam 22 and the corner post 21, which can not only ensure the connection strength between the second reinforcing box 25, the end lower beam 22 and the corner post 21, but also enhance the strengthening effect of the second reinforcing box 25 on the strength of the avoidance groove 221 of the end lower beam 22, thereby ensuring the stability of the structure of the end frame 20 and the entire tank container 100.

[0065] As Figure 4 shown, the hypotenuse of the outer contour of the second reinforcing box 25 can be set as an arc. The arc side is in a concave arc structure facing away from the tank body 10. Such a setting can save the layout space inside the end frame 20 of the tank container 100 and facilitate the layout of supporting equipment.

[0066] Refer to Figure 1 and Figure 2 , the end frame 20 of this embodiment further includes an end upper beam 26 and a pair of top corner fittings 27. Among them, the end upper beam 26 is connected between the tops of the two corner posts 21. The two top corner fittings 27 are respectively arranged at the two ends of the end upper beam 26 to be connected to the tops of the two corner posts 21.

[0067] In this embodiment, the outer side of the corner post 21 is arranged inside the outer end face of the bottom corner fitting 23 or flush with the outer end face of the bottom corner fitting 23. It can be understood that the bottom end of the corner post 21 is connected to the bottom corner fitting 23, and the outer side face of the corner post 21 can be located inside the outer end face of the bottom corner fitting 23 or flush with the outer end face of the bottom corner fitting 23.

[0068] Specifically, within the standard tolerance range, for any end frame 20, the distance W1 between the outer end faces of the two bottom corner fittings 23 is 2550 mm; the distance W3 between the outer side faces of the two corner posts 21, that is, the width of the tank container 100, is 2550 mm; the distance W2 between the outer end faces of the two top corner fittings 27 is 2438 mm. In this embodiment, the height of the tank container 100 can be designed to be greater than 2438 mm according to actual requirements.

[0069] In addition, as Figure 5As shown in the figure, the outer side of the corner post 21 of this embodiment can also be set to extend outward beyond the outer end face of the bottom corner fitting 23, that is, the distance W3 between the outer side faces of the two corner posts 21 is greater than the distance W1 between the outer end faces of the two bottom corner fittings 23. In the actual structure, the part of the corner post 21 that extends beyond the bottom corner fitting 23 at the bottom can be chamfered, and a reinforcing plate can be sealed on the chamfered surface at the bottom of the corner post 21.

[0070] Specifically, within the standard tolerance range, for any one end frame 20, the distance W1 between the outer end faces of the two bottom corner fittings 23 is 2438 mm; the distance W3 between the outer side faces of the two corner posts 21, that is, the width of the tank container 100, is 2550 mm; the distance W2 between the outer end faces of the two top corner fittings 27 is 2438 mm.

[0071] It can be understood that there can also be the following settings: within the standard tolerance range, for any one end frame 20, the distance W1 between the outer end faces of the two bottom corner fittings 23 is 2438 mm; the distance W3 between the outer side faces of the two corner posts 21, that is, the width of the tank container 100, is 2600 mm; the distance W2 between the outer end faces of the two top corner fittings 27 is 2438 mm.

[0072] Within the standard tolerance range, for any one end frame 20, the distance W1 between the outer end faces of the two bottom corner fittings 23 is 2550 mm; the distance W3 between the outer side faces of the two corner posts 21, that is, the width of the tank container 100, is 2600 mm; the distance W2 between the outer end faces of the two top corner fittings 27 is 2438 mm.

[0073] In each of the above-described embodiments, the tank container 100 can be a SWAP BODY (exchange type) tank container, which is a large-capacity, ultra-high and ultra-wide tank container and can achieve a total weight capacity of 39T. It can be understood that the tank container 100 can also be other types of tank containers, which will not be listed one by one here.

[0074] For the tank container of this embodiment, in the lower connecting component of the end frame, the bending settings of the extension section and the transition section in the outer edge of the connecting plate make the sealing plate form an arc structure, and it is connected to the end lower beam through an arc transition at its bottom. Considering that the distance between the connecting plate and the tank body at the connection of the extension section of the sealing plate is equal in width, while the lower connecting component cooperates with the corner post and the end lower beam to stably support the tank body, it can also reduce the stress concentration between the connecting plate and the tank body, so as to better disperse the stress to the end lower beam, thereby effectively ensuring the stability of the overall structure of the tank container.

[0075] While the invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but rather should be broadly construed within the spirit and scope defined by the appended claims, and accordingly all variations and modifications that fall within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A tank container, characterized in that, It includes a tank body and end frames respectively supporting both ends of the tank body, and the end of the tank body extends outward beyond the end frames; The end frames include: Corner columns, arranged in pairs; End lower beams, connected between the bottom ends of the two corner columns; Bottom corner pieces, arranged in pairs; the two bottom corner pieces are respectively arranged at both ends of the end lower beam to be connected with the bottom ends of the two corner columns; and Lower connection components, arranged near the bottom of the tank body, and the lower connection components include: Connection plates, arranged in pairs, the two connection plates are arranged parallel and opposite to each other; the top of the connection plate is fixed to the corner column, and the bottom of the connection plate is fixed to the end lower beam; the inner edge of the connection plate is fixed to the outer wall of the tank body, and the outer edge of the connection plate includes a fixed section, an extension section and a transition section connected in sequence from top to bottom; the fixed section is connected to the corner column, and the extension section is arched outward in a direction away from the tank body; the transition section is arc-shaped and has a bending direction opposite to that of the extension section, and the bottom end of the transition section is fixed to the top of the end lower beam; Sealing plates, connected between the outer edges of the two connection plates; the top end of the sealing plate is fixed to the corner column, and the bottom end of the sealing plate extends to the end lower beam; the sealing plate bends along with the extension section and the transition section, and the distance between the part of the sealing plate connected to the extension section and the tank body is equal from top to bottom.

2. The tank container according to claim 1, characterized in that, The extension section and the transition section are reversely tangent and smoothly transition at the connection.

3. The tank container according to claim 1, characterized in that, The difference between the radius of the extension section and the radius of the cross-section of the tank body is 50 mm - 200 mm.

4. The tank container according to claim 1, characterized in that, The radius of the transition section is 30 mm - 150 mm.

5. The tank container according to claim 1, characterized in that, The outer edge of the connection plate further includes a connection section, and the connection section extends from the bottom end of the extension section to the bottom of the end lower beam; the connection section is arranged on the outer wall of the end lower beam so that the bottom part of the connection plate fits and fixes to the outer wall of the end lower beam.

6. The tank container according to claim 5, characterized in that, The connection section is arc-shaped, and the bending direction of the connection section is opposite to the bending direction of the transition section to form an S-shaped structure with the transition section.

7. The tank container according to claim 1, characterized in that, The fixed section is L-shaped and bends in a direction close to the tank body; the fixed section is arranged on the outer wall of the corner column so that the top part of the connection plate fits and fixes to the outer wall of the corner column.

8. The tank container according to claim 1, characterized in that, The inner edge of the connection plate bends along with the arc-shaped outer wall of the tank body.

9. The tank container according to claim 1, characterized in that, The connection plate includes a first connection sub-plate and a second connection sub-plate, the bottom end of the first connection sub-plate is connected to the top end of the second connection sub-plate, and the inner edges of the first connection sub-plate and the second connection sub-plate are both fixed to the outer wall of the tank body; The outer edge of the first connection sub-plate includes the fixed section and an arc-shaped first segment connected in sequence from top to bottom, and the outer edge of the second connection sub-plate includes an arc-shaped second segment and the transition section connected in sequence from top to bottom; the first segment and the second segment are connected to form the extension section.

10. The tank container according to claim 9, characterized in that, The first connection sub-plate and the second connection sub-plate are integrally formed into the connection plate.

11. The tank container according to claim 1, characterized in that, The lower connecting component further includes a first reinforcing box, which is fixed on the corner post and located between the two connecting plates; the top end of the sealing plate is fixed to the corner post through the first reinforcing box, and the outer edge part of the top of the connecting plate is fixed to the first reinforcing box.

12. The tank container according to claim 1, characterized in that, Each end frame includes two sets of the lower connecting components, and the two sets of the lower connecting components are respectively arranged on both sides of the bottom of the tank body.

13. The tank container according to claim 12, characterized in that, The ends of the parts of the connecting plates of the two sets of the lower connecting components located at the bottom of the tank body are abutted against each other.

14. The tank container according to claim 1, characterized in that, Avoidance grooves are formed at the bottoms of both ends of the end lower beam, and the depth of the avoidance grooves is less than the height of the end lower beam.

15. The tank container according to claim 14, characterized in that, The cross-sectional profile of the inner wall of the avoidance groove includes a first connecting section and a second connecting section that is bent and connected to the first connecting section. The end of the first connecting section is fixed to the bottom corner piece, and an arc transition is formed between the first connecting section and the second connecting section.

16. The tank container according to claim 14, characterized in that, Each end frame further includes a pair of second reinforcing boxes, and the two second reinforcing boxes are respectively arranged at the joints of the two corner posts and the two ends of the end lower beam, and the second reinforcing boxes are correspondingly arranged above the avoidance grooves.

17. The tank container according to claim 16, wherein The outer contour of the second reinforcing box is a right triangle, and the two right sides of the second reinforcing box are respectively fixed to the end lower beam and the corner post.

18. The tank container according to claim 17, wherein The hypotenuse of the outer contour of the second reinforcing box is arc-shaped.

19. The tank container according to claim 1, wherein The outer side of the corner post is arranged inside the outer end face of the bottom corner piece or flush with the outer end face of the bottom corner piece.

20. The tank container according to claim 1, wherein The outer side of the corner post extends outwards beyond the outer end face of the bottom corner piece.

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