Composite floor and refrigerated container

Abstract

The utility model provides a composite floor and a refrigerated container. The composite floor comprises a plurality of connecting plates which are spliced in sequence. A lap joint part and a connecting part are arranged on the two opposite sides of each connecting plate, and every two connected connecting plates are spliced through the corresponding lap joint part and the corresponding connecting part and are welded to form a whole. Meanwhile, the lap joint part comprises a first protruding section and a lap joint section, and the first protruding section vertically extends so that the first protruding section can be welded to the connecting part. The lap joint section extends in the direction away from the connecting plate from the side face of the first protruding section, a lap joint groove is formed in the lap joint section, and the bottom face of the lap joint section can be in lap joint with the bottom face of the lap joint groove, so that the height of the welding bead is reduced. Moreover, the bottom surface of the lap joint section is in lap joint with the bottom surface of the lap joint groove, so that when the connecting plate is subjected to transverse tension, the tendency of weld bead tearing can be reduced, the connecting performance of the joint is improved, and the risk of damage to the composite floor is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerated containers, in particular to a combined floor and a refrigerated container. Background Art

[0002] A refrigerated container is a standardized container with refrigeration equipment, which can transport some frozen goods or low-temperature goods that need to be kept at a certain temperature. The floor of the refrigerated container is mostly a T-floor, and the upper surface of the T-floor is provided with multiple T-shaped protrusions in longitudinal section.

[0003] Due to the large area of ​​container floor and the limitation of current technology, T floor cannot be made of one piece of aluminum plate, but is made of multiple T-slot components welded together. And due to the influence of T-shaped protrusion, the welding position between T-slot components is usually located at the bottom of the T floor.

[0004] However, in the existing T-floor overlap structure, the weld bead is easily poorly formed during welding, and the formed weld bead is at a high height from the lower surface of the T-floor, thereby affecting the mechanical properties of the T-floor in bearing lateral tension, and there is a risk of damage during long-term use. Utility Model Content

[0005] The utility model aims to provide a composite floor, which can improve welding penetration and weld bead forming, and improve weld bead quality.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] According to one aspect of the utility model, the utility model provides a composite floor, comprising a plurality of connecting plates spliced ​​in sequence, wherein the connecting plates comprise an overlapping portion and a connecting portion; the overlapping portion and the connecting portion are respectively arranged on opposite sides of the connecting plates; the two connected connecting plates are spliced ​​through the overlapping portion and the connecting portion; wherein the overlapping portion comprises a first protruding section and an overlapping section; the first protruding section extends vertically; the overlapping section extends from the side edge of the first protruding section in a direction away from the connecting plate; the side surface of the first protruding section and the side surface of the connecting portion can be abutted against each other for welding; the connecting portion is provided with an overlapping groove; the bottom surface of the overlapping section can overlap the bottom surface of the overlapping groove.

[0008] In one embodiment of the present application, the connecting portion is provided with a second protruding section and a horizontal section; the second protruding section protrudes vertically from the connecting plate; the horizontal section extends in a horizontal direction, and the second protruding section and the horizontal section are spaced apart to form the overlapping groove; the side of the second protruding section away from the connecting plate can abut against the side of the first protruding section; the top surface of the horizontal section can overlap with the ground of the overlapping section.

[0009] In one embodiment of the present application, a recessed portion is formed between the bottom of the overlapping section and the bottom of the connecting plate; the vertical height of the recessed portion is the same as the height of the horizontal section, so that when the bottom of the overlapping section overlaps the top of the horizontal section, the bottoms of the two connected connecting plates remain flush.

[0010] In one embodiment of the present application, the vertical height of the first protruding segment is the same as the vertical height of the second protruding segment, so that after the two connected connecting plates are spliced, the tops of the first protruding segment and the second protruding segment can be on the same horizontal plane.

[0011] In one embodiment of the present application, the height from the top surface of the first protruding section and the top surface of the second protruding section to the bottom surface of the connecting plate is less than or equal to 7.5 mm.

[0012] In one embodiment of the present application, central overlap portions are provided on opposite sides of the central panel, and the structure of the central overlap portion is the same as that of the overlap portion; the central panel is spliced ​​with the connecting portion of the connecting panel through the central overlap portion.

[0013] In one embodiment of the present application, the composite floor further comprises a bottom corner seal; the bottom corner seal is used to be connected to the connecting plate; a lap step is provided on one side of the bottom corner seal facing the connecting plate; the lap step can be overlapped on the lap portion so that after the bottom corner seal is connected to the connecting plate, the bottom of the connecting plate and the bottom corner seal remain flush.

[0014] In one embodiment of the present application, the upper surfaces of the center plate, the connecting plate and the bottom corner seal are all provided with T-shaped protrusions, and the tops of the T-shaped protrusions on the center plate, the connecting plate and the bottom corner seal are located on the same horizontal plane.

[0015] In one embodiment of the present application, the composite floor comprises one central panel and four connecting panels spliced ​​to each other; seven T-shaped protrusions are arranged on the connecting panel, and five T-shaped protrusions are arranged on the central panel.

[0016] In one embodiment of the present application, a plurality of the T-shaped protrusions are provided on both the central plate and the connecting plate, and the plurality of the T-shaped protrusions are arranged at intervals along the horizontal direction.

[0017] In one embodiment of the present application, the bottom corner seal is bent and extended upward on one side away from the connecting plate to form a flange; the flange is vertically lower than the T-shaped protrusion.

[0018] The present application also provides a refrigerated container, which includes a box body, a base frame, and any one of the combined floors; the combined floor is installed on the base frame; the base frame is accommodated in the cavity of the box body and is located at the bottom of the cavity.

[0019] It can be seen from the above technical solution that the utility model has at least the following advantages and positive effects:

[0020] In the utility model, the composite floor comprises a plurality of connecting plates spliced ​​in sequence. The connecting plates are provided with overlapping parts and connecting parts on opposite sides, and the two connected connecting plates are spliced ​​through the overlapping parts and the connecting parts and are welded to form a whole.

[0021] At the same time, the overlapping portion includes a first protruding section and an overlapping section, and the first protruding section extends vertically so that the first protruding section can be welded to the connecting portion. The overlapping section extends from the side of the first protruding section in a direction away from the connecting plate, and the overlapping section is provided with an overlapping groove, and the bottom surface of the overlapping section can overlap the bottom surface of the overlapping groove, thereby reducing the height of the weld. In addition, since the bottom surface of the overlapping section overlaps the bottom surface of the overlapping groove, it can reduce the tendency of the weld to tear when the connecting plate is subjected to lateral tension, improve the connection performance of the connection, and reduce the risk of damage to the composite floor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the existing T-floor structure.

[0023] Figure 2 yes Figure 1 A magnified view of point A.

[0024] Figure 3 It is a schematic diagram of a combined floor and a base frame according to an embodiment of the utility model.

[0025] Figure 4 yes Figure 3 An enlarged view of point B.

[0026] Figure 5 yes Figure 3 Schematic diagram of a composite floor.

[0027] Figure 6 yes Figure 5 Enlarged view of point C.

[0028] Figure 7 yes Figure 3 Schematic diagram of the connection plates of a built-up floor.

[0029] Figure 8 yes Figure 3 Schematic diagram of the center panel of a built-up floor.

[0030] The following are the descriptions of the reference numerals:

[0031] 1-middle floor; 2-first connecting part; 3-second connecting part; 4-welding surface; 5-lap tongue; lap groove-6; 10-connecting plate; 11-center plate; 12-bottom corner seal; 13-flange; 20-lap part; 21-first protruding section; 22-lap section; 23-recessed part; 30-connecting part; 31-lap groove; 32-second protruding section; 33-horizontal section; 40-T-shaped protrusion; 41-welding point; 50-base frame; 111-center overlapping part. DETAILED DESCRIPTION

[0032] Typical embodiments that embody 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 changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0033] In the description of the present invention, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] like Figure 1 and Figure 2 As shown, the existing T-floor structure includes 7 middle floors 1, and two connected middle floors 1 are overlapped by the first connection part 2 and the second connection part 3, and the welding surface 4 is welded, so as to connect the two middle floors 1 together. The first connection part 2 is provided with an overlap tongue 5, and the second connection part 3 is provided with an overlap groove 6. The overlap tongue 5 can extend into the overlap groove 6, and the top of the overlap tongue 5 abuts against the top of the overlap groove 6.

[0036] However, since the top of the lap tongue 5 abuts against the top of the lap groove 6, when the first connection part 2 and the second connection part 3 are overlapped and welded, it is easy to cause a poor weld bead forming effect, and the height between the top of the first connection part 2 and the second connection part 3 and the bottom of the middle floor 1 is too high. Specifically, in actual application, in the weld bead formed by the overlap and welding of the first connection part 2 and the second connection part 3, the height of the weld bead from the bottom of the middle floor 1 is 10 mm, so that the middle floor 1 is subjected to a lateral tensile force (i.e., subjected to a lateral tensile force). Figure 1 When the weld is torn, there is a risk of damage after long-term use. Therefore, a composite floor is proposed to solve the above problems.

[0037] The scheme is further illustrated by the following examples:

[0038] Figure 3 It is a schematic diagram of a combined floor and a base frame according to an embodiment of the utility model. Figure 4 yes Figure 3 An enlarged view of point B.

[0039] See also Figure 3 and Figure 4 The present application provides a refrigerated container for transporting some frozen goods or low-temperature goods that need to be kept at a certain temperature. The refrigerated container may include a box body, a bottom frame 50 and a combined floor. The combined floor may be installed on the bottom frame 50, and the bottom frame 50 may be accommodated in the cavity of the box body and located at the bottom of the cavity.

[0040] In this embodiment, the box body can be set as a standard container, and a containing space is provided inside the box body for installing the base frame 50 and the combined floor and placing goods.

[0041] Figure 5 It is a schematic diagram of a composite floor according to an embodiment of the utility model. Figure 6 yes Figure 5 Enlarged view of point C.

[0042] See also Figure 5 and Figure 6 The present application also provides a composite floor, wherein the composite floor is installed in a refrigerated container to support goods.

[0043] Specifically, the composite floor may include a plurality of connection plates 10 that are spliced ​​in sequence, and the plurality of spliced ​​connection plates 10 can be spliced ​​in a horizontal direction into a plate-shaped whole.

[0044] The connecting plate 10 may include a lap portion 20 and a connecting portion 30, and the lap portion 20 and the connecting portion 30 may be respectively arranged on opposite sides of the connecting plate 10. The two connected connecting plates 10 may be spliced ​​by the lap portion 20 and the connecting portion 30, and after the lap portion 20 and the connecting portion 30 are spliced, the lap portion 20 and the connecting portion 30 may be welded, so that the two connected connecting plates 10 are fastened together.

[0045] See also Figure 6 The overlapping portion 20 may include a first protruding section 21 and an overlapping section 22. The first protruding section 21 may extend vertically from the upper surface of the connecting plate 10, and the overlapping section 22 may extend from the side of the first protruding section 21 in a direction away from the connecting plate 10, that is, the overlapping section 22 extends in the horizontal direction.

[0046] The side of the first protruding section 21 can abut against the side of the connecting portion 30 for welding. That is, the abutment point between the first protruding section 21 and the connecting portion 30 is a welding point 41 to fasten the two connected connecting plates 10 together.

[0047] In addition, the connecting portion 30 may be provided with a lap groove 31 .

[0048] When two connected connecting plates 10 are spliced ​​together, the bottom surface of the overlapping section 22 can overlap the bottom surface of the overlapping groove 31, so that adjacent connecting plates 10 can be spliced ​​together.

[0049] It should be noted that, since the overlapping section 22 overlaps the bottom surface of the overlapping groove 31, the positional relationship between the overlapping portion 20 and the connecting portion 30 of the two connected connecting plates 10 can remain relatively stable after overlapping, thereby facilitating welding of the welding point 41 between the overlapping portion 20 and the connecting portion 30. In addition, since the position between the overlapping portion 20 and the connecting portion 30 can remain relatively stable, during welding, the welding penetration and welding forming conditions can remain stable, thereby improving the welding effect.

[0050] At the same time, since the bottom surface of the overlapping section 22 overlaps the bottom surface of the overlapping groove 31, the top surface of the first protruding section 21 and the height relative to the connecting portion 30 can be lowered. When the top surface of the connecting portion 30 is kept flush with the top surface of the first protruding section 21, the heights of the top surfaces of both the overlapping portion 20 and the connecting portion 30 can be lowered, thereby reducing the height of the weld from the lower surface of the connecting plate 10.

[0051] In addition, since the welding point 41 between the overlapping portion 20 and the connecting portion 30 is located above the overlapping section 22 and the overlapping groove 31, when the bottom surface of the overlapping section 22 overlaps the surface of the overlapping groove 31 and the overlapping portion 20 and the connecting portion 30 are welded, a stable structure can be formed between the welding point 41 and the overlapping portion, thereby reducing the tearing tendency generated when the overlapping portion 20 and the connecting portion 30 are subjected to lateral tension, improving the mechanical properties of the connection between the overlapping portion 20 and the connecting portion 30, and reducing the risk of damage to the composite floor during long-term use.

[0052] See also Figure 6 , the connecting portion 30 may be provided with a second protruding section 32 and a horizontal section 33 .

[0053] The second protruding section 32 can protrude from the connecting plate 10 vertically, the horizontal section 33 can extend horizontally, and the second protruding section 32 and the horizontal section 33 can be spaced apart to form a lap groove 31. The side of the second protruding section 32 away from the connecting plate 10 can abut against the side of the first protruding section 21 to form a welding point 41.

[0054] It should be noted that the second protruding section 32 has a step-like structure, so that a lap groove 31 can be formed between the second protruding section 32 and the horizontal section 33 , and the side surface of the second protruding section 32 can abut against the side surface of the first protruding section 21 to form a welding surface 41 .

[0055] In addition, in this embodiment, when welding the combined floor, the two connecting plates 10 need to be spliced, and then the two connecting plates 10 are fixed by electric welding using a welding machine, and finally the two connecting plates 10 are automatically welded using a welding machine. The welding method is automatic welding using non-metallic gas shielded welding, the welding current is 480-500A, and the welding speed is 1.6-1.8m / min.

[0056] In addition, the spacing between the second protruding section 32 and the horizontal section 33, that is, the vertical height of the overlapping groove 31, is greater than the thickness of the overlapping section 22, so that the overlapping section 22 can penetrate and overlap in the overlapping groove 31. Specifically, the top surface of the horizontal section 33 can overlap the ground of the overlapping section 22.

[0057] See also Figure 6 A recessed portion 23 may be formed between the bottom of the overlapping section 22 and the bottom of the connecting plate 10. The vertical height of the recessed portion 23 is the same as the vertical height of the horizontal section 33, so that when the bottom of the overlapping section 22 overlaps the top of the horizontal section 33, the bottoms of the two connected connecting plates 10 remain flush, ensuring the flatness of the combined floor.

[0058] See also Figure 6The vertical height of the first protruding section 21 can be the same as the vertical height of the second protruding section 32, so that after the two connected connecting plates 10 are spliced, the tops of the first protruding section 21 and the second protruding section 32 can be on the same horizontal plane, thereby reducing the height of the connection between the two connecting plates 10.

[0059] The height from the top surface of the first protruding section 21 and the top surface of the second protruding section 32 to the bottom surface of the connecting plate 10 is less than or equal to 7.5 mm, thereby reducing the height of the weld, thereby reducing the tearing tendency generated when the lap joint 20 and the connecting part 30 are subjected to lateral tension, and improving the mechanical properties of the weld between the lap joint 20 and the connecting part 30.

[0060] Figure 7 yes Figure 3 Schematic diagram of the connection plates of a built-up floor. Figure 8 yes Figure 3 Schematic diagram of the center panel of a built-up floor.

[0061] See also Figure 5 , Figure 7 and Figure 8 The composite floor may further include a center panel 11 .

[0062] The central panel 11 may be provided with central overlapped portions 111 on opposite sides thereof, and the structure of the central overlapped portions 111 is the same as that of the overlapped portions 20. The central panel 11 may be spliced ​​with the connecting portions 30 of the connecting panels 10 through the central overlapped portions 111.

[0063] In this embodiment, the composite floor is formed by splicing one central plate 11 and four connecting plates 10, thereby reducing the number of parts required for the entire composite floor. In addition, the number of parts required for the composite floor is reduced, so that the number of welds required for the entire composite floor is reduced, thereby increasing the structural strength of the entire composite floor.

[0064] In some other embodiments, the four side surfaces of the center plate 11 may be provided with connecting portions 30 for being spliced ​​with the overlapping portions 20 of the connecting plates 10 .

[0065] See also Figure 7 and Figure 8 The composite floor may further include a bottom corner seal 12 . The bottom corner seal 12 may be used to be connected to the connecting plate 10 .

[0066] Specifically, an overlapping step may be provided on the side of the bottom corner seal 12 facing the connecting plate 10 , and the overlapping step can overlap on the overlapping portion 20 , so that after the bottom corner seal 12 is connected to the connecting plate 10 , the bottom of the connecting plate 10 and the bottom corner seal 12 remain flush.

[0067] At the same time, the side of the bottom corner seal 12 away from the connecting plate 10 can be bent upward and extended to form a flange 13. The flange 13 is lower than the T-shaped protrusion 40 in the vertical direction.

[0068] It should be noted that the bottom corner seal 12 is connected to the outermost side of the connecting plate 10 to improve the aesthetics of the composite floor.

[0069] See also Figure 5 , Figure 7 and Figure 8 The upper surfaces of the center plate 11, the connecting plate 10 and the bottom corner seal 12 may be provided with T-shaped protrusions 40. The tops of the T-shaped protrusions 40 on the center plate 11, the connecting plate 10 and the bottom corner seal 12 are located on the same horizontal plane so that the upper surface of the composite floor remains flush.

[0070] In addition, multiple T-shaped protrusions 40 can be provided on the center plate 11 and the connecting plate 10, and the multiple T-shaped protrusions 40 are arranged at intervals in the horizontal direction to support the goods, and the T-shaped protrusions 40 can form water troughs to avoid water accumulation and affect the goods.

[0071] Specifically, in the present embodiment, seven T-shaped protrusions 40 are provided on the connecting plate 10, and five T-shaped protrusions 40 are provided on the center plate 11. Therefore, compared with the prior art, the widths of the connecting plate 10 and the center plate 11 are increased. Under the premise of not affecting the overall width of the composite floor, the connecting plate 10 and the center plate 11 can be reduced, thereby reducing the number of welds of the composite floor as a whole, thereby improving the overall structural strength of the composite floor.

[0072] In summary, the connected connecting plates 10 are spliced ​​by the overlapping parts 20 and the connecting parts 30, and the overlapping sections 22 of the overlapping parts 20 overlap the bottom surface of the overlapping grooves 31, so that the two connecting plates 10 can be directly overlapped smoothly, which is convenient for subsequent welding, improves the unstable penetration of the weld and the unstable welding formation, and improves the welding quality. At the same time, the bottom surface of the overlapping section overlaps the bottom surface of the overlapping groove, which can reduce the tendency of the weld to tear when the connecting plate is subjected to lateral tension, improve the connection performance of the connection, and reduce the risk of damage to the composite floor.

[0073] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A composite floor, comprising a plurality of connecting panels connected in sequence, characterized in that: The connecting plate comprises an overlapping portion and a connecting portion; the overlapping portion and the connecting portion are respectively arranged on two opposite sides of the connecting plate; the two connected connecting plates are spliced ​​through the overlapping portion and the connecting portion; Wherein, the overlapping portion includes a first protruding section and an overlapping section; the first protruding section extends vertically; the overlapping section extends from the side of the first protruding section in a direction away from the connecting plate; the side surface of the first protruding section and the side surface of the connecting portion can abut against each other for welding; the connecting portion is provided with an overlapping groove; the bottom surface of the overlapping section can overlap the bottom surface of the overlapping groove.

2. The composite floor according to claim 1, characterized in that: The connecting portion is provided with a second protruding section and a horizontal section; the second protruding section protrudes vertically from the connecting plate; the horizontal section extends in the horizontal direction, and the second protruding section and the horizontal section are spaced apart to form the overlapping groove; the side of the second protruding section away from the connecting plate can abut against the side of the first protruding section; the top surface of the horizontal section can overlap with the ground of the overlapping section.

3. The composite floor according to claim 2, characterized in that: A recessed portion is formed between the bottom of the overlapping section and the bottom of the connecting plate; the vertical height of the recessed portion is the same as the height of the horizontal section, so that when the bottom of the overlapping section overlaps the top of the horizontal section, the bottoms of the two connected connecting plates remain flush.

4. The composite floor according to claim 2, characterized in that: The vertical height of the first protruding section is the same as the vertical height of the second protruding section, so that after the two connected connecting plates are spliced, the tops of the first protruding section and the second protruding section can be on the same horizontal plane.

5. The composite floor according to claim 4, characterized in that: The height from the top surface of the first protruding section and the top surface of the second protruding section to the bottom surface of the connecting plate is less than or equal to 7.5 mm.

6. The composite floor according to claim 1, characterized in that: It also includes a center plate; center overlap parts are arranged on opposite sides of the center plate, and the structure of the center overlap part is the same as that of the overlap part; the center plate is spliced ​​with the connection part of the connection plate through the center overlap part.

7. The composite floor according to claim 6, characterized in that: It also includes a bottom corner seal; the bottom corner seal is used to be connected to the connecting plate; a lap step is provided on the side of the bottom corner seal facing the connecting plate; the lap step can be overlapped on the lap portion, so that after the bottom corner seal is connected to the connecting plate, the bottom of the connecting plate and the bottom corner seal remain flush.

8. The composite floor according to claim 7, characterized in that: The upper surfaces of the center plate, the connecting plate and the bottom corner seal are all provided with T-shaped protrusions, and the tops of the T-shaped protrusions on the center plate, the connecting plate and the bottom corner seal are located on the same horizontal plane.

9. The composite floor according to claim 8, characterized in that: The composite floor comprises one central plate and four connecting plates which are spliced ​​to each other; seven T-shaped protrusions are arranged on the connecting plate, and five T-shaped protrusions are arranged on the central plate.

10. The composite floor according to claim 8, characterized in that: A plurality of T-shaped protrusions are disposed on the central plate and the connecting plate, and the plurality of T-shaped protrusions are disposed at intervals along the horizontal direction.

11. The composite floor according to claim 8, characterized in that: The side of the bottom corner seal away from the connecting plate is bent upward and extended to form a flange; the flange is lower than the T-shaped protrusion in the vertical direction.

12. A refrigerated container, characterized in that: It comprises a box body, a base frame, and the combined floor as described in any one of claims 1 to 11; the combined floor is installed on the base frame; the base frame is accommodated in the cavity of the box body and is located at the bottom of the cavity.

Images