Cargo compartment bottom plate structure

Abstract

The utility model relates to the field of cargo compartment design, in particular to a cargo compartment bottom plate structure which comprises a bottom plate, a fixed beam fixedly connected to the bottom end of the bottom plate and edge beams arranged on the periphery of the bottom plate. The distance between the first flanged plate and the web plate is smaller than that between the end of the lower wing plate and the web plate, the end of the fixed beam is embedded into the edge beam groove and fixedly connected with the first flanged plate, the top end of the fixed beam is flush with the top end of the edge beam, and the fixed beam comprises a cross beam and a longitudinal beam. The top end of the cross beam is horizontally flanged and forms a second flanged plate, the second flanged plate and the left and right wing plates of the cross beam are arranged in a fillet manner, and the fillet is provided with a process hole for the flowing of an electrophoresis liquid, and the cross beam has the effects of enhancing the corrosivity and the cargo carrying safety, being high in bearing performance, being convenient for a user to use and the like.

Description

Technical Field

[0001] This utility model relates to the field of cargo box design, specifically to a cargo box floor structure. Background Technology

[0002] The existing cargo box floor structure includes a floor plate, with crossbeams and longitudinal beams installed at the bottom of the floor plate in the width and length directions, respectively. It also includes longitudinal and transverse side beams installed around the floor plate. The longitudinal and transverse side beams are conventionally set as C-shaped channel steel. The C-shaped channel steel includes a web plate, with wing plates symmetrically fixed on both sides of the web plate. The web plate plays a supporting and load-bearing role, while the wing plates play a supporting and stabilizing role.

[0003] The conventional installation method involves seamlessly welding the end of the crossbeam into the square groove of the side beam. This welding method prevents the electrophoretic coating liquid from entering the crossbeam during the electrophoresis process, and also results in incomplete coating of the left and right cavities at the connection between the crossbeam and the longitudinal side beam, leading to weak corrosion resistance in the crossbeam and the longitudinal side beam. The conventional design places the base plate at the bottom of the longitudinal side beam and the crossbeam, which creates a height difference between the base plate and the longitudinal or crossbeam, forming a step that causes inconvenience when handling goods. Utility Model Content

[0004] The present invention aims to provide a cargo box floor structure to solve the problems of poor corrosion resistance and steps between the floor and the side beams.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cargo box floor structure, including a floor, a fixed beam fixedly connected to the bottom end of the floor, and side beams arranged around the floor. The upper flange of the side beam is vertically folded downward at the end away from the web to form a first folded edge plate. The distance between the first folded edge plate and the web is less than the distance between the end of the lower flange and the web. The end of the fixed beam is embedded in the groove of the side beam and fixedly connected to the first folded edge plate. The top of the fixed beam is flush with the top of the side beam.

[0006] The beneficial effects of this solution are as follows: The end of the fixed beam is vertically embedded in the side beam. Since the first folded edge plate is a certain distance from the web of the side beam, the end of the fixed beam is also a certain distance from the side beam. This satisfies the fixed connection between the fixed beam and the side beam while ensuring that the end of the fixed beam is open. In contrast, the existing technology fixes the end of the fixed beam to the web of the side beam by welding. In the existing technology, the web of the side beam seals the end of the fixed beam. During the electrophoresis process, the electrophoretic liquid cannot effectively enter the interior of the fixed beam for coating. In addition, the connection method in the existing technology results in several fixed beams separating the side beam into several adjacent grooves. These grooves are not interconnected, and the electrophoretic liquid cannot fully coat them. In contrast, compared with the existing technology, the connection method of the fixed beam and the side beam in this solution allows the electrophoretic liquid to flow smoothly through the gap between the fixed beam and the side beam during the electrophoresis process, and smoothly enter the interior of the fixed beam through the end of the fixed beam, fully coating the interior of the fixed beam. At the same time, it also fully coats the grooves of the side beam, thereby enhancing the corrosion resistance.

[0007] Furthermore, only through the design of the first folded edge plate can the welding of the fixed beam and the edge beam be achieved while keeping their tops flush. Therefore, the bottom plate can completely cover the top of the fixed beam and the edge beam, eliminating the phenomenon of a step formed by a height difference between the bottom plate edge and the edge beam in the prior art. Compared with the prior art, this connection method can avoid the problem of bottom collision when handling goods, thereby improving the efficiency and safety of goods handling.

[0008] Furthermore, in the prior art, the bottom plate is located below the horizontal and vertical side beams, and the goods on the bottom plate are supported only by the welds between the horizontal and vertical beams. Compared with the prior art, in this solution, the bottom plate is located above the side beams, and the horizontal and vertical beams are welded together. Thus, the bottom plate is supported by the horizontal and vertical beams and the welds, thereby improving the load-bearing capacity of the bottom plate.

[0009] Furthermore, the edge beam includes a horizontal edge beam and a longitudinal edge beam. The horizontal edge beam is fixed perpendicularly to the longitudinal edge beam, and the top of the horizontal edge beam is flush with the top of the longitudinal edge beam. The first folded edge plate is set on the longitudinal edge beam.

[0010] The beneficial effects of this solution are as follows: the fixed beam includes both transverse and longitudinal beams, and the two cannot be connected at the same height, resulting in a height difference. Therefore, the first folded edge plate can only be set on one of the transverse and longitudinal beams.

[0011] Furthermore, the fixed beam includes a crossbeam and a longitudinal beam, both of which are C-shaped channel steel. The crossbeam opens upward and is fixedly connected to the bottom end of the base plate. A process hole for the flow of electrophoretic liquid is provided at the connection between the crossbeam and the base plate. The longitudinal beam is fixedly connected to the bottom end of the crossbeam, and the end of the longitudinal beam is fixedly connected to the crossbeam.

[0012] The beneficial effects of this solution are: the process holes can increase the fluidity of the electrophoretic liquid, enabling full coating of the interior of the crossbeams; in addition, by setting both the crossbeams and longitudinal beams as C-shaped channel steel, the lightweight structure of the cargo box floor can be guaranteed.

[0013] Furthermore, the end of the crossbeam is embedded in the groove of the longitudinal side beam and fixedly connected to the first folded edge plate.

[0014] Furthermore, the ends of the left and right flanges of the crossbeam are horizontally flanged outward to form a second flange plate. The second flange plate and the flange of the crossbeam are set at rounded corners, and the process holes are opened at the rounded corners.

[0015] The beneficial effects of this solution are: the rounded corner design can increase the stability of the beam, and setting the process holes at the rounded corners can achieve the purpose of not affecting the rigidity of the beam.

[0016] Furthermore, the web of the crossbeam is perpendicular to the web of the longitudinal beam, the upper flange of the longitudinal beam is fixedly connected to the web of the crossbeam, and the upper flange at the end of the longitudinal beam is fixedly connected to the lower flange of the transverse beam.

[0017] Furthermore, a first reinforcing block is fixedly installed between the crossbeam and the longitudinal beam, and the interior of the first reinforcing block is hollow.

[0018] Furthermore, a second reinforcing block is fixedly installed inside the longitudinal beam, and the interior of the second reinforcing block is also hollow.

[0019] The beneficial effects of this solution are as follows: by setting the first reinforcing block and the second reinforcing block, the first reinforcing block strengthens the connection between the crossbeam and the longitudinal beam, thereby improving the stability of the base plate structure; the setting of the second reinforcing block improves the stability of the longitudinal beam structure; and the hollow setting of the first and second reinforcing blocks ensures the lightweight of the base plate structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall bottom structure of an embodiment of the present utility model;

[0021] Figure 2 This is an embodiment of the present utility model. Figure 1 Schematic diagram of a partial structure of the central reinforcing block;

[0022] Figure 3 This is a schematic cross-sectional view of the connection between the crossbeam and the base plate in an embodiment of this utility model.

[0023] Figure 4 This is a partial exploded structural diagram of the vertical fixing point of the side beam in an embodiment of this utility model;

[0024] Figure 5 This is a partial cross-sectional structural diagram of the connection between the crossbeam and the side beam in an embodiment of this utility model. Detailed Implementation

[0025] The following detailed description illustrates the specific implementation method:

[0026] The reference numerals in the accompanying drawings include: base plate 1, side beam 2, transverse side beam 21, longitudinal side beam 22, first folded edge plate 221, fixed beam 3, transverse beam 31, process hole 311, second folded edge plate 312, longitudinal beam 32, first reinforcing block 33, and second reinforcing block 34.

[0027] Example

[0028] A cargo box floor structure, such as Figures 1-3 As shown, the system includes a base plate 1. A crossbeam 31 is fixedly welded to the bottom end of the base plate 1 in the width direction. The crossbeam 31 has the same cross-sectional shape as the C-shaped channel steel, is C-shaped, and includes a web and flanges fixed vertically to both sides of the web. The crossbeam 31 is positioned with its opening facing upwards. The flanges on the left and right sides of the crossbeam 31 are horizontally flanged outwards, forming a second folded edge plate 312. The top of the second folded edge plate 312 is fixedly welded to the bottom end of the base plate 1. The second folded edge plate 312 and the left and right flanges of the crossbeam 31 are set at rounded corners, and process holes 311 for the flow of electrophoretic fluid are opened at the rounded corners. The base plate 1 is spliced ​​from two patterned plates of the same size and thickness. Several crossbeams 31 are welded at equal intervals to the bottom end of the base plate 1. Two longitudinal beams 3 are symmetrically arranged at equal intervals at the bottom ends of the several crossbeams 31. 2. The longitudinal beam 32 is in the same length direction as the base plate 1, and the cross section of the longitudinal beam 32 is also the same as that of the C-shaped channel steel. The web of the longitudinal beam 32 is set perpendicular to the web of the transverse beam 31. The upper flange of the longitudinal beam 32 is fixedly welded to the web of the transverse beam 31. A first reinforcing block 33 is fixedly welded between the two webs of the transverse beam 31 and the longitudinal beam 32. The first reinforcing block 33 is hollow to facilitate the flow of the electrophoretic liquid. The first reinforcing block 33 is triangular in design to stabilize and strengthen the connection between the two. A second reinforcing block 34 is embedded in the groove of the longitudinal beam 32. The second reinforcing block 34 is also hollow to facilitate the flow of the electrophoretic liquid. The second reinforcing block 34 is fixedly welded to the longitudinal beam 32. The second reinforcing block 34 enhances the load-bearing and support performance of the longitudinal beam 32.

[0029] like Figure 1 , Figure 4As shown, the side beam 2 is a beam arranged around the base plate 1. The side beam 2 includes a longitudinal side beam 22 located along the length of the base plate 1 and a transverse side beam 21 located along the width of the base plate 1. The cross-sections of the longitudinal side beam 22 and the transverse side beam 21 are the same as the cross-sectional shape of the C-shaped channel steel. Here, it is assumed that the width between the outer sides of the two flanges of the C-shaped channel steel is called the channel width. In this embodiment, the channel width of the longitudinal side beam 22 is greater than the channel width of the transverse side beam 21, and the difference in channel width between the longitudinal side beam 22 and the transverse side beam 21 is the same as the plate thickness of the transverse side beam 21. In this embodiment, when fixing the transverse side beam 21 and the longitudinal side beam 22, the webs of both are vertically arranged. Cut notches in the upper flanges at both ends of the transverse beam 21 to allow the longitudinal beam 22 to fit. The width of the notches is equal to the groove depth of the longitudinal beam 22. The lower flange of the transverse beam 21 is adapted to avoid the thickness of the web of the longitudinal beam 22. The end of the longitudinal beam 22 is inserted into the groove of the transverse beam 21. The lower flange of the longitudinal beam 22 is fixedly welded to the lower flange of the transverse beam 21. At this time, the upper flange of the longitudinal beam 22 is inserted into the notch of the upper flange of the transverse beam 21. At the same time, the web of the transverse beam 21 seals the end of the longitudinal beam 22. The gap is welded with welding rod, thus achieving the vertical fixation of the transverse beam 21 and the longitudinal beam 22.

[0030] like Figure 1 , Figure 5 As shown, the upper flange of the longitudinal beam 22 is vertically flanged downwards to form a first folded flange 221. The distance between the first folded flange 221 and the web of the longitudinal beam 32 is less than the distance between the lower flange of the longitudinal beam 32 and the web. When the end of the crossbeam 31 is inserted into the groove of the longitudinal beam 22 and welded, the end of the crossbeam 31 abuts against the first folded flange 221 before touching the bottom. At this time, the end of the crossbeam 31 is fixedly welded to the first folded flange 221. After welding, the top of the crossbeam 31 is aligned with the top of the longitudinal beam 22. Since the tops of the transverse beam 21 and the longitudinal beam 22 are also on the same plane, the bottom surface of the base plate 1 is in contact with the tops of the transverse beam 21, the longitudinal beam 22, and the transverse beam 31. The transverse beam 21 and the longitudinal beam 22 are fixedly welded to the base plate 1 by welding, thereby eliminating the possibility of steps between the base plate 1 and the side beams 2, increasing the safety of goods handling. At the same time, the gap between the longitudinal beam 22 and the transverse beam 31 allows the electrophoretic liquid to enter the coating, enhancing the corrosion resistance.

[0031] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A cargo box floor structure, comprising a floor plate, a fixed beam fixedly connected to the bottom end of the floor plate, and side beams disposed around the perimeter of the floor plate, characterized in that: The upper flange of the side beam is vertically flanged downwards at the end away from the web to form the first folded edge plate. The distance between the first folded edge plate and the web is less than the distance between the end of the lower flange and the web. The end of the fixed beam is embedded in the groove of the side beam and fixedly connected to the first folded edge plate. The top of the fixed beam is flush with the top of the side beam.

2. The cargo box floor structure according to claim 1, characterized in that: The edge beam includes a horizontal edge beam and a longitudinal edge beam. The horizontal edge beam is fixed perpendicularly to the longitudinal edge beam and the top of the horizontal edge beam is flush with the top of the longitudinal edge beam. The first folded edge plate is set on the longitudinal edge beam.

3. The cargo box floor structure according to claim 2, characterized in that: The fixed beam includes a crossbeam and a longitudinal beam. Both the crossbeam and the longitudinal beam are arranged in the shape of a C-shaped channel steel. The crossbeam opens upward and is fixedly connected to the bottom end of the base plate. A process hole for the flow of electrophoretic liquid is provided at the connection between the crossbeam and the base plate. The longitudinal beam is fixedly connected to the bottom end of the crossbeam, and the end of the longitudinal beam is fixedly connected to the crossbeam.

4. The cargo box floor structure according to claim 3, characterized in that: The end of the crossbeam is embedded in the groove of the longitudinal edge beam and fixedly connected to the first folded edge plate.

5. A cargo box floor structure according to claim 4, characterized in that: The left and right flanges of the crossbeam are horizontally flanged outward to form a second flange. The second flange and the crossbeam flange are rounded, and the process holes are opened at the rounded corners.

6. The cargo box floor structure according to claim 5, characterized in that: The web of the crossbeam is perpendicular to the web of the longitudinal beam. The upper flange of the longitudinal beam is fixedly connected to the web of the crossbeam. The upper flange at the end of the longitudinal beam is fixedly connected to the lower flange of the transverse beam.

7. A cargo box floor structure according to claim 6, characterized in that: A first reinforcing block is fixedly installed between the crossbeam and the longitudinal beam, and the interior of the first reinforcing block is hollow.

8. A cargo box floor structure according to claim 7, characterized in that: A second reinforcing block is fixedly installed inside the longitudinal beam, and the interior of the second reinforcing block is also hollow.

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