Fabricated trailer carriage

Abstract

An assembly type trailer carriage comprises longitudinal beams, cross beams and a support. The longitudinal beam comprises a top wall, a side wall and a bottom wall, and an opening is formed between the inner side edges of the top wall and the bottom wall; the two side plates extend downwards from the two sides of the top plate respectively, the bottom plate is located between the bottoms of the two side plates and is opposite to the top plate, the end plate is connected to the top plate, the two side plates and the end of the bottom plate, at least one part of the end of the cross beam is embedded into an opening of the longitudinal beam, and the top plate and the top wall are fixed through a first bolt transversely penetrating through the top plate and the top wall; the support comprises an outer support, an inner support and a connecting base, the outer support is provided with a flat plate part attached to the outer surface of the side wall, and the flat plate part, the side wall and the end plate are fixed through a second bolt transversely penetrating through the flat plate part, the side wall and the end plate; a connecting plate attached to the lower surface of the bottom plate is fixed to the inner support, and the connecting plate and the bottom plate are fixed through a third bolt transversely penetrating through the connecting plate and the bottom plate. The space occupied by the carriage in the transportation process is reduced, and the transportation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an assembled trailer slide frame. Background Art

[0002] The slide of the trailer is usually installed on the beam of the trailer, and is used to adjust the distance between the suspension system and the tractor, so that the load can be reasonably distributed, so that the trailer can be suitable for different road surfaces. The slide of the trailer generally includes two longitudinal beams and several cross beams connected between the two longitudinal beams. The bracket of the suspension system is welded and fixed on the longitudinal beam. Since most of the bracket of the suspension system protrudes from the lower surface of the longitudinal beam and the cross beam, the overall space occupied by the slide is large, which makes the slide not conducive to logistics transportation. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an assembled trailer slide, which can reduce the space occupied by the trailer slide during logistics transportation and reduce transportation costs.

[0004] To achieve the above object, the present invention adopts the following technical solution: An assembled trailer slide frame includes a longitudinal beam, a cross beam and a bracket; The longitudinal beam includes a top wall, a side wall bent downward from the outer side of the top wall, and a bottom wall bent inward from the bottom of the side wall, and an opening is formed between the inner side edges of the top wall and the bottom wall; The cross beam includes a top plate, two side plates extending downward from both sides of the top plate, a bottom plate located between the bottoms of the two side plates and opposite to the top plate, and an end plate connected to the top plate, the two side plates and the end of the bottom plate. At least a part of the end of the cross beam is embedded in the opening of the longitudinal beam. The top plate and the top wall are fixed by a first bolt that passes through the two. The bracket includes an outer bracket placed on the outside of the side wall of the longitudinal beam, an inner bracket located on the inside of the outer bracket and opposite to the outer bracket, and a connecting seat connected between the outer bracket and the inner bracket. The outer bracket has a flat plate portion abutting against the outer surface of the side wall, and the flat plate portion, the side wall and the end plate are fixed by a second bolt that crosses the three of them; the inner bracket is fixed with a connecting plate abutting against the lower surface of the bottom plate, and the connecting plate and the bottom plate are fixed by a third bolt that crosses the two.

[0005] The outer bracket is in a plate shape, and a first reinforcing convex rib is arranged on the outer bracket, and a portion of the outer bracket located above the first reinforcing convex rib forms a flat plate portion.

[0006] The periphery of the outer bracket is provided with a continuous first flange.

[0007] The inner bracket is in the shape of a plate, and wing plates extending in a direction away from the outer bracket are arranged on the tops of both sides of the inner bracket, and the connecting plate is fixedly connected between the two wing plates.

[0008] The edge of the inner bracket is provided with a second flange which is continuously arranged between the two wing plates.

[0009] An extension plate extending upward is fixed on each of the two wing plates. The two extension plates are respectively abutted against two side plates of the cross beam. The extension plates and the side plates are fixed by a fourth bolt passing through the two.

[0010] The extension plate is integrally formed on the wing plate or is welded and fixed on the extension plate.

[0011] The two ends of the connecting plate are respectively provided with a first bent edge bent downward, the inner side is provided with a second bent edge bent downward, and the outer side is provided with a third bent edge bent downward. The two ends of the second bent edge are respectively welded and fixed to the two first bent edges; the two first bent edges are respectively abutted against the inner sides of the two wing plates and are respectively welded and fixed to the two wing plates.

[0012] The inner bracket is provided with a second reinforcing convex rib, the third bent edge is provided with a notch, and the second reinforcing convex rib is embedded in the notch.

[0013] The inner side of the top wall is provided with a downwardly bent connecting wall and an extending wall bent inwardly from the bottom of the connecting wall. The extending wall is close to the upper surface of the crossbeam top plate, and the first bolt crosses the top plate and the extending wall.

[0014] The cross beam comprises two cross beam units with C-shaped cross sections. The C-shaped openings of the two cross beam units are arranged opposite to each other. The webs of the two cross beam units form two side plates respectively. The upper wing plates of the two cross beam units form a top plate, and the lower wing plates form a bottom plate.

[0015] A Z-shaped support plate is arranged between the upper wing plate and the lower wing plate of the crossbeam unit, the top of the Z-shaped support plate is abutted against the lower surface of the upper wing plate, and the first bolt crosses the top of the Z-shaped support plate, the upper wing plate and the top wall; the bottom of the Z-shaped support plate is abutted against the upper surface of the lower wing plate, and the third bolt crosses the bottom of the Z-shaped support plate, the lower wing plate and the connecting plate.

[0016] The beneficial effects of the present invention are: The assembled trailer slide of the present invention uses bolts to connect the bracket to the frame composed of longitudinal beams and cross beams, so that the bracket is fixedly matched with the longitudinal beams and cross beams, ensuring that the strength of the connection between the bracket, the longitudinal beams and the cross beams can meet the use requirements of the trailer. At the same time, the bracket, the longitudinal beams and the cross beams can be packaged and transported separately, reducing the space occupied by the slide during transportation and reducing transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 Schematic diagram of the assembly of the middle slide; Figure 3 is a cross-sectional view of the present invention; Figure 4 for Figure 2 Schematic diagram of the assembly of the middle bracket; Figure 5 for Figure 4 Schematic diagram of the structure of the inner bracket. Implementation

[0018] Below, in conjunction with the accompanying drawings and specific embodiments, the present invention is further described: like Figure 1 , 2 As shown in Figures 3, 4 and 5, the assembled trailer slide frame of the present invention includes two longitudinal beams 10 and three transverse beams 20. The two longitudinal beams 10 and the three transverse beams 20 form a frame structure, and a bracket 30 and a middle bracket 50 are installed on the frame structure; the bracket 30 and the middle bracket 50 are connected to the frame structure composed of the longitudinal beams 10 and the transverse beams 20 by bolts.

[0019] Taking the mounting structure of the bracket 30 and the frame structure as an example, the longitudinal beam 10 includes a top wall 12, a side wall 11, and a bottom wall 13. The side wall 11 is formed by bending the outer edge of the top wall 12 downward, and the bottom wall 13 is formed by bending the bottom 13 of the side wall 11 inward. An opening is formed between the inner sides of the top wall 12 and the bottom wall 13, and the end of the cross beam 20 can be embedded in the longitudinal beam 10 through the opening, that is, at least a part of the end of the cross beam 20 can be inserted through the opening and placed between the top wall 12 and the bottom wall 13 of the longitudinal beam 10. The cross beam 20 specifically includes a top plate, two plates having The side plates extending downward on both sides of the top plate, the bottom plate located between the bottoms of the two side plates and opposite to the top plate up and down, and the end plates 22 connected to the top plate, the two side plates and the end of the bottom plate. After the cross beam 20 is matched with the longitudinal beam 10, the top plate of the cross beam 20 is abutted against the lower surface of the top wall 12, and the bottom plate of the cross beam 20 is abutted against the upper surface of the bottom wall 13. The first bolt 41 is used to pass through the top plate of the cross beam 20 and the top wall 12 of the longitudinal beam 10 from bottom to top, and the nut 411 on the first bolt 41 is used to fix the top plate of the cross beam 20 and the top wall 12 of the longitudinal beam 10 together. The bracket 30 includes an outer bracket 31, an inner bracket 32 ​​and a connecting seat 33. The outer bracket 31 is placed on the outer side of the side wall 11 of the longitudinal beam 10, and the inner bracket 32 ​​is located on the inner side of the outer bracket 31 and is arranged opposite to the outer bracket 31. The inner bracket 32 ​​and the outer bracket 31 are spaced a certain distance apart. The connecting seat 33 is placed between the inner bracket 32 ​​and the outer bracket 31, and its two sides are respectively welded and fixed to the inner bracket 32 ​​and the outer bracket 31 to connect the inner bracket 32 ​​and the outer bracket 31 together; the outer bracket 31 has a flat plate portion 312 that is abutted against the outer surface of the side wall 11, and the second bolt 42 is used to sequentially cross the end plate 22, the side wall 11 and the flat plate portion 312 from the inside to the outside, and the nut 421 on the second bolt 42 is used to fix the end plate 22, the side wall 11 and the flat plate portion 312 together. In addition, a connecting plate 322 is fixed on the inner bracket 32, and the connecting plate 322 is placed under the bottom plate of the cross beam 20, and the upper surface of the connecting plate 322 is close to the lower surface of the bottom plate of the cross beam 20. The third bolt 43 is passed through the bottom plate of the cross beam 20 and the connecting plate 322 from top to bottom, and the bottom plate of the cross beam 20 and the connecting plate 322 are fixed with the nut 431 on the third bolt 43. In this way, the cross beam 20 and the longitudinal beam 10 are fixed by the first bolt 41, the end wall 22 of the cross beam 20 and the side wall 11 of the longitudinal beam 10 are fixed by the second bolt 42, and the inner bracket 32 ​​and the cross beam 20 are fixedly connected by the third bolt 43.

[0020] The assembled trailer slide of the present invention utilizes bolts to connect the bracket to a frame composed of longitudinal beams and cross beams, so that the bracket is fixedly matched with the longitudinal beams and cross beams, ensuring that the strength of the connection between the bracket, the longitudinal beams and the cross beams can meet the use requirements of the trailer. At the same time, the bracket, the longitudinal beams and the cross beams can be packaged and transported separately, reducing the space occupied by the slide during transportation and reducing transportation costs.

[0021] The outer bracket 31 is in the shape of a plate, and is provided with a first reinforcing rib 311 thereon. The first reinforcing rib 311 can be formed on the outer bracket 31 by stamping. The portion of the outer bracket 31 located above the first reinforcing rib 311 forms the above-mentioned flat plate portion 312. The flat plate portion 312 is provided on the outer bracket 31, so that the outer bracket 31 can be well abutted against the outer surface of the side wall 11. In this way, a plurality of second bolts 42 can be passed through the flat plate portion 312 to increase the connection strength between the outer bracket 31 and the longitudinal beam 10. In addition, the portion above the first reinforcing rib 311 is provided as the flat plate portion 312. After the flat plate portion 312 is abutted against the outer side of the side wall 11, the top of the first reinforcing rib 311 is exactly located at the chamfered position where the side wall 11 and the bottom wall 13 are combined. The first reinforcing rib 311 and the chamfer are used to position the outer bracket 31 and the longitudinal beam 10. At the same time, the chamfer is supported by the first reinforcing rib 311, which is conducive to improving the overall stability of the slide. In order to increase the strength of the outer bracket 31 , a continuous first flange 313 is provided at the periphery of the outer bracket 31 . The first flange 313 forms a circle of reinforcing ribs at the periphery of the outer bracket 31 to increase the strength of the outer bracket 31 .

[0022] The inner bracket 32 ​​is plate-shaped, and a wing plate 321 extending in a direction away from the outer bracket 31 is respectively provided on the top of both sides thereof. The above-mentioned connecting plate 322 is fixedly connected between the two wing plates 321. Specifically, the connecting plate 322 can be fixed to the two wing plates 321 by welding. The edge of the inner bracket 32 ​​is provided with a second flange 324 continuously arranged between the two wing plates 321. The inner bracket 32 ​​can be formed by stamping. The above-mentioned wing plate 321 and the second flange 324 are formed in the stamping process. The second flange 324 forms a circle of reinforcing ribs around the periphery of the inner bracket 32 ​​to increase the strength of the inner bracket 32. In order to enable the two wing plates 321 to be connected and fixed to the beam 20 on both sides of the beam 20, an upwardly extending extension plate 323 is fixed on each of the two wing plates 321. The extension plate 323 extends upward from the top edge of the wing plate 321 and is placed on the side edge of the beam 20. The two extension plates 323 are respectively abutted against the two side plates of the beam 20. The extension plates and the side plates of the beam 20 are fixed by a fourth bolt 44 that passes through the two. The fourth bolt 44 passes through the side plates of the beam 20 and the extension plate 323 located on the outside of the side plates from the inside of the beam 20 to the outside. The nut 441 on the fourth bolt 44 cooperates with the fourth bolt 44 to fix the side plates of the beam 20 and the extension plate 323 together. The extension plate 323 is fixed to the wing plate 321 by welding. Specifically, a long strip-shaped through hole 3231 is opened on the extension plate 323, and the portion of the extension plate 323 with the through hole 3231 is placed against the outer side of the wing plate 321. Welding is performed along the periphery of the through hole 3231 to weld the extension plate 323 to the wing plate 321. In other embodiments, the extension plate 323 may also be integrally formed on the wing plate 321.

[0023] The two ends of the connecting plate 322 are respectively provided with a first bending edge 3221 bending downward, the inner side of the connecting plate 322 is provided with a second bending edge 3222 bending downward, the outer side of the connecting plate 322 is provided with a third bending edge 3223 bending downward, and the two ends of the second bending edge 3222 are respectively welded and fixed to the two first bending edges 3221, so that the connecting plate 322 forms a box-shaped structure, which increases the strength of the connecting plate 322. At the same time, the two first bending edges 3221 are respectively abutted against the inner side surfaces of the two wing plates 321, and the first bending edges 3221 and the wing plates 321 are welded and fixed together. Since the first bending edges 3221 extending downward are provided at the two ends of the connecting plate 322, the connecting plate 322 and the wing plates 321 can be welded and fixed in an overlapping manner, which simplifies the welding process. A second reinforcing rib 325 is provided on the inner bracket 32. The second reinforcing rib 325 protrudes from the inner surface of the inner bracket 32 ​​and is provided with a notch 3224 on the third bending edge 3223. After the connecting plate 322 is placed between the two wing plates 321, the second reinforcing rib 325 is embedded in the notch 3224. The second reinforcing rib 325 is utilized to reinforce the inner bracket 32. At the same time, the second reinforcing rib 325 cooperates with the notch 3224 on the second bending edge 3223 to position the connecting plate 322.

[0024] The inner side edge of the top wall 12 of the longitudinal beam 10 is provided with a downwardly bent connecting wall 14, and the bottom of the connecting wall 14 is provided with an inwardly bent extending wall 15, the extending wall 15 is parallel to the top wall 12, and the extending wall 15 is abutted against the upper surface of the top plate of the cross beam 20. The first bolt 41 crosses the top plate and the extending wall 15 of the cross beam 20 from bottom to top to connect and fix the cross beam 20 to the longitudinal beam 10. The connecting wall 14 and the extending wall 15 are provided on the top wall 12, so that the cross section of the longitudinal beam 10 forms an inverted G shape. Of course, in other embodiments, the cross section of the longitudinal beam 10 can also be C-shaped.

[0025] The cross beam 20 includes two cross beam units 21, the cross beam units 21 have a C-shaped cross section, the C-shaped openings of the two cross beam units 21 are arranged opposite to each other, the end plates 22 are connected to the ends of the two cross beam units 21, the cross beam units include a web 211, an upper wing plate 212 and a lower wing plate 213, the webs 211 of the two cross beam units 21 respectively form two side plates of the cross beam 20, the upper wing plates 212 of the two cross beam units 21 form the top plate of the cross beam 20, and the lower wing plates 213 of the two cross beam units 21 form the bottom plate of the cross beam 20. Since the cross beam 20 is composed of two cross beam units 21, when the inner bracket 32 ​​is fixed to the cross beam 20, the first bolt 41, the second bolt 42, the third bolt 43, and the fourth bolt 44 can pass through the cross beam 20 from the inside, so that it is convenient to pass the bolts during assembly and tighten the nuts on the bolts on the outside of the cross beam. In addition, a Z-shaped support plate 214 is provided between the upper wing plate 212 and the lower wing plate 213 of the crossbeam unit 21, and the top of the Z-shaped support plate 214 is abutted against the lower surface of the upper wing plate 212, and the bottom is abutted against the upper surface of the lower wing plate 213. The first bolt 41 is sequentially passed through the top of the Z-shaped support plate 214, the upper wing plate 212, and the extension wall 15 on the top wall 12 of the longitudinal beam 10 from bottom to top, and then the nut 411 is tightened on the portion of the first bolt 41 protruding from the extension wall 15, and the nut 411 is tightened. The above-mentioned third bolt 43 is sequentially passed through the bottom of the Z-shaped support plate 214, the lower wing plate 213, and the connecting plate 322 from top to bottom, and a nut 431 is sleeved on the portion of the third bolt 43 protruding from the lower surface of the connecting plate 322 and the nut 431 is tightened.

[0026] Figure 1 The connection method of the middle bracket 50 with the longitudinal beam 10 and the cross beam 20 is the same as the connection method of the above-mentioned bracket 30, and will not be repeated here.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled trailer slide, characterized in that: Including longitudinal beams, cross beams and brackets; The longitudinal beam includes a top wall, a side wall bent downward from the outer side of the top wall, and a bottom wall bent inward from the bottom of the side wall, and an opening is formed between the inner side edges of the top wall and the bottom wall; The cross beam includes a top plate, two side plates extending downward from both sides of the top plate, a bottom plate located between the bottoms of the two side plates and opposite to the top plate, and an end plate connected to the top plate, the two side plates and the end of the bottom plate. At least a part of the end of the cross beam is embedded in the opening of the longitudinal beam. The top plate and the top wall are fixed by a first bolt that passes through the two. The bracket includes an outer bracket placed on the outside of the side wall of the longitudinal beam, an inner bracket located on the inside of the outer bracket and opposite to the outer bracket, and a connecting seat connected between the outer bracket and the inner bracket. The outer bracket has a flat plate portion abutting against the outer surface of the side wall, and the flat plate portion, the side wall and the end plate are fixed by a second bolt that crosses the three of them; the inner bracket is fixed with a connecting plate abutting against the lower surface of the bottom plate, and the connecting plate and the bottom plate are fixed by a third bolt that crosses the two.

2. The assembled trailer carriage according to claim 1, characterized in that: The outer bracket is in a plate shape, and a first reinforcing convex rib is arranged on the outer bracket, and a portion of the outer bracket located above the first reinforcing convex rib forms a flat plate portion.

3. The assembled trailer carriage according to claim 2, characterized in that: The periphery of the outer bracket is provided with a continuous first flange.

4. The assembled trailer carriage according to claim 1, characterized in that: The inner bracket is in the shape of a plate, and wing plates extending in a direction away from the outer bracket are arranged on the tops of both sides of the inner bracket, and the connecting plate is fixedly connected between the two wing plates.

5. The assembled trailer carriage according to claim 4, characterized in that: The edge of the inner bracket is provided with a second flange which is continuously arranged between the two wing plates.

6. The assembled trailer carriage according to claim 4, characterized in that: An extension plate extending upward is fixed on each of the two wing plates. The two extension plates are respectively abutted against two side plates of the cross beam. The extension plates and the side plates are fixed by a fourth bolt passing through the two.

7. The assembled trailer carriage according to claim 6, characterized in that: The extension plate is integrally formed on the wing plate or is welded and fixed on the extension plate.

8. The assembled trailer carriage according to claim 4, characterized in that: The two ends of the connecting plate are respectively provided with a first bent edge bent downward, the inner side is provided with a second bent edge bent downward, and the outer side is provided with a third bent edge bent downward. The two ends of the second bent edge are respectively welded and fixed to the two first bent edges; the two first bent edges are respectively abutted against the inner sides of the two wing plates and are respectively welded and fixed to the two wing plates.

9. The assembled trailer carriage according to claim 4, characterized in that: The inner bracket is provided with a second reinforcing convex rib, the third bent edge is provided with a notch, and the second reinforcing convex rib is embedded in the notch.

10. The assembled trailer carriage according to claim 1, characterized in that: The inner side of the top wall is provided with a downwardly bent connecting wall and an extending wall bent inwardly from the bottom of the connecting wall. The extending wall is close to the upper surface of the crossbeam top plate, and the first bolt crosses the top plate and the extending wall.

11. The assembled trailer carriage according to claim 1, characterized in that: The cross beam comprises two cross beam units with C-shaped cross sections. The C-shaped openings of the two cross beam units are arranged opposite to each other. The webs of the two cross beam units form two side plates respectively. The upper wing plates of the two cross beam units form a top plate, and the lower wing plates form a bottom plate.

12. The assembled trailer carriage according to claim 11, characterized in that: A Z-shaped support plate is arranged between the upper wing plate and the lower wing plate of the crossbeam unit, the top of the Z-shaped support plate is abutted against the lower surface of the upper wing plate, and the first bolt crosses the top of the Z-shaped support plate, the upper wing plate and the top wall; the bottom of the Z-shaped support plate is abutted against the upper surface of the lower wing plate, and the third bolt crosses the bottom of the Z-shaped support plate, the lower wing plate and the connecting plate.

Images