Heavy aluminum alloy ramp ladder

Abstract

The utility model discloses a heavy aluminum alloy ramp ladder which comprises a main beam, wherein a claw disc is arranged at the top of the main beam, and a grounding plate is arranged at the bottom of the main beam; meanwhile, a plurality of ramp plates are further uniformly arranged at the top of the main beam at intervals, the ramp plates are rectangular plates as a whole, and the bottoms of the ramp plates are connected with the main beam in a welded mode; the claw disc comprises a lap joint hook and a fixed connecting plate, the lap joint hook is composed of a first lap joint plate and a second lap joint plate, the first lap joint plate and the second lap joint plate are arranged in a vertical included angle mode, the fixed connecting plate is obliquely connected to the lower end of the second lap joint plate, and in the scheme, the top of the second lap joint plate is flush with the top of the main beam; meanwhile, the end part of the upper end of the main beam is obliquely arranged, and the top of the fixed connecting plate is welded with the end part of the upper end of the main beam; the grounding plate is movably connected with the bottom of the main beam; the universal car hopper is higher in universality and can be conveniently matched with car hoppers of different heights.

Description

Technical Field

[0001] The utility model relates to the field of movable ramps, in particular to a heavy-duty aluminum alloy ramp ladder. Background Art

[0002] To facilitate the loading and unloading of goods, trucks, trailers, etc. are usually equipped with a ramp at the rear of the vehicle. In order to save space, the ramp is often separated from the truck or trailer and installed independently.

[0003] For example, the patent with authorization announcement number CN213442244U discloses a high-load-bearing, multifunctional, heavy-duty ramp ladder, which belongs to the field of vehicle auxiliary equipment. It includes a ramp ladder body, and its structural features are: it also includes anti-slip ribs, a fixed card plate, and a clamping mechanism. The anti-slip ribs are arranged on the upper surface of the ramp ladder body, the fixed card plate is arranged at the upper end of the ramp ladder body, and the clamping mechanism is mounted on the fixed card plate. The fixed card plate is arranged in an L-shaped structure. The fixed card plate includes a horizontal card plate and a vertical card plate. The horizontal card plate is arranged at the upper end of the ramp ladder body, and the vertical card plate is connected to the horizontal card plate.

[0004] The above patent fixes the fixed plate through a clamping mechanism to prevent the ramp ladder body from shifting when loading and unloading goods or trailers; however, the disadvantage of the above patent is that the bottom angle of the ramp ladder body in the above patent is fixed, so the ramp ladder in the above patent can only be adapted for unloading vehicles of fixed height, because only when the ramp ladder is at a fixed angle can the bottom of the ramp ladder body fully contact the ground.

[0005] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide a heavy-duty aluminum alloy ramp ladder to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A heavy-duty aluminum alloy ramp ladder comprises a main beam, wherein a claw plate is provided on the top of the main beam, and a grounding plate is provided on the bottom of the main beam; at the same time, a plurality of ramp plates are evenly spaced on the top of the main beam, wherein the ramp plates are rectangular plates as a whole, and the bottoms of the ramp plates are welded to the main beam; the claw plate comprises a lap hook and a fixed connecting plate, wherein the lap hook is composed of a first lap plate and a second lap plate arranged at a vertical angle, and the fixed connecting plate is obliquely connected to the lower end of the second lap plate. In this solution, the top of the second lap plate is flush with the top of the main beam; at the same time, the upper end of the main beam The end is set at an angle, and the top of the fixed connecting plate is welded to the upper end of the main beam; the grounding plate is movably connected to the bottom of the main beam; the lower end of the main beam is set at an angle, and a connecting ear is provided at the top front end of the grounding plate, and the connecting ear is rotatably connected to the lower end of the main beam through a rotating shaft; the rotating shaft is fixedly installed at the lower end of the main beam; at the same time, arc-shaped plates are symmetrically provided on the left and right sides of the top rear end of the grounding plate, and an arc-shaped hole is opened on the arc-shaped plate. A fixing hole is also opened on the lower end of the main beam, and a fixing bolt is fixedly connected in the fixing hole, and the fixing bolt passes through the arc-shaped hole.

[0009] Furthermore, there are at least two main beams, and the two main beams are fixedly connected by a connecting beam.

[0010] Furthermore, there are at least three connecting beams, and the three connecting beams are evenly spaced apart.

[0011] Furthermore, the top of the ramp plate is provided with friction grooves along the length direction of the ramp plate, which are used to increase the friction coefficient of the ramp plate surface and prevent the goods from slipping on the ramp plate surface.

[0012] Furthermore, the main beam includes a square frame with a rectangular cross-section and a plurality of reinforcing ribs located inside the square frame, and the reinforcing ribs are used to enhance the structural strength of the square frame.

[0013] Furthermore, the connecting beams are all aluminum alloy square tubes, and the main beams and the connecting beams are welded together.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] When it is necessary to adjust the angle of the grounding plate relative to the main beam, the grounding plate rotates with the rotating shaft as the axis. When it is adjusted to the appropriate angle, the fixing bolts are tightened. At this time, the arc plate is close to the side wall of the main beam, and the angle of the grounding plate relative to the main beam is fixed. The utility model has higher versatility and is easy to adapt to truck beds of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The diagram is a structural diagram of a heavy-duty aluminum alloy ramp ladder.

[0017] Figure 2The figure is a front view of a heavy-duty aluminum alloy ramp ladder.

[0018] Figure 3 A side view of a heavy-duty aluminum alloy ramp ladder.

[0019] Figure 4 A top view of a heavy-duty aluminum alloy ramp ladder.

[0020] Figure 5 for Figure 1 A partial enlarged view of point A in the middle.

[0021] Figure 6 This is a schematic diagram of a heavy-duty aluminum alloy ramp ladder with part of the structure removed from the lower end.

[0022] Figure 7 for Figure 6 A partial enlarged view of point B in the middle DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents selected embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-7 , a heavy-duty aluminum alloy ramp ladder, comprising a main beam 1;

[0025] A claw plate 2 is provided on the top of the main beam 1, and a grounding plate 3 is provided on the bottom of the main beam 1;

[0026] There are at least two main beams 1, which are fixedly connected by a connecting beam 101. There are at least three connecting beams 101, and the three connecting beams 101 are evenly spaced.

[0027] At the same time, a number of ramp plates 4 are evenly spaced on the top of the main beam 1. The ramp plates 4 are rectangular plates as a whole, and the bottoms of the ramp plates 4 are welded to the main beam 1. At the same time, the tops of the ramp plates 4 are provided with friction grooves 401 along the length of the ramp plates 4 to increase the friction coefficient of the ramp plates 4 and prevent the goods from slipping on the surface of the ramp plates 4.

[0028] The main beam 1 includes a rectangular cross-section frame 102 and a plurality of reinforcing ribs 103 located inside the frame 102. The reinforcing ribs 103 are used to enhance the structural strength of the frame 102.

[0029] In this solution, the connecting beams 101 are all aluminum alloy square tubes, and the main beam 1 and the connecting beams 101 are welded together;

[0030] The claw plate 2 includes a lap hook 201 and a fixed connecting plate 202. The lap hook 201 is composed of a first lap plate 203 and a second lap plate 204 arranged at a vertical angle, and the fixed connecting plate 202 is obliquely connected to the lower end of the second lap plate 204. In this solution, the top of the second lap plate 204 is flush with the top of the main beam 1.

[0031] At the same time, the upper end of the main beam 1 is tilted, and the top of the fixed connecting plate 202 is welded to the upper end of the main beam 1;

[0032] At the same time, in this solution, in order to enhance the adaptability of the ramp ladder, the ground plate 3 is movably connected to the bottom of the main beam 1;

[0033] Specifically, the lower end of the main beam 1 is tilted, and a connecting ear 301 is provided at the top front end of the grounding plate 3. The connecting ear 301 is rotatably connected to the lower end of the main beam 1 through a rotating shaft 302; the rotating shaft 302 is fixedly installed at the lower end of the main beam 1;

[0034] At the same time, the top rear end of the grounding plate 3 is symmetrically provided with arc-shaped plates 303 on the left and right sides, and an arc-shaped hole 304 is opened on the arc-shaped plate 304. The lower end of the main beam 1 is also provided with a fixing hole 305, and a fixing bolt 306 is fixedly connected in the fixing hole 305, and the fixing bolt 306 passes through the arc-shaped hole 304;

[0035] When the angle of the grounding plate 3 relative to the main beam 1 needs to be adjusted, the fixing bolts 306 are loosened. The grounding plate 3 can now rotate about the rotating shaft 302. When the angle is adjusted to a suitable angle, the fixing bolts 306 are tightened. The curved plate 304 is now in close contact with the side wall of the main beam 1. The angle of the grounding plate 3 relative to the main beam 1 is now fixed.

[0036] When this solution is put into use, first adjust the grounding plate 3 according to the height of the truck cargo box, and then put the claw plate 2 on the truck cargo box to complete the installation of this solution.

[0037] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "left," "right," and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the product of the present invention is typically placed when in use, or the positions or locations commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific position, be constructed, or operate in a specific position. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

Claims

1. A heavy-duty aluminum alloy ramp ladder, comprising a main beam, characterized in that: The top of the main beam is provided with a claw plate, and the bottom of the main beam is provided with a grounding plate; at the same time, a number of ramp plates are evenly spaced on the top of the main beam, wherein the ramp plate is a rectangular plate as a whole, and the bottom of the ramp plate is welded to the main beam; the claw plate includes a lap hook and a fixed connecting plate, the lap hook is composed of two first lap plates and a second lap plate arranged at a vertical angle, and the fixed connecting plate is obliquely connected to the lower end of the second lap plate. In this solution, the top of the second lap plate is flush with the top of the main beam; at the same time, the upper end of the main beam is inclined, and the same The top of the fixed connecting plate is welded to the upper end of the main beam; the grounding plate is movably connected to the bottom of the main beam; the lower end of the main beam is inclined, and a connecting ear is provided at the top front end of the grounding plate, and the connecting ear is rotatably connected to the lower end of the main beam through a rotating shaft; the rotating shaft is fixedly installed at the lower end of the main beam; at the same time, arc-shaped plates are symmetrically provided on the left and right sides of the top rear end of the grounding plate, and an arc-shaped hole is opened on the arc-shaped plate. A fixing hole is also opened on the lower end of the main beam, and a fixing bolt is fixedly connected in the fixing hole, and the fixing bolt passes through the arc-shaped hole.

2. A heavy-duty aluminum alloy ramp ladder according to claim 1, characterized in that: There are at least two main beams, and the two main beams are fixedly connected by a connecting beam.

3. A heavy-duty aluminum alloy ramp ladder according to claim 2, characterized in that: There are at least three connecting beams, and the three connecting beams are evenly spaced.

4. A heavy-duty aluminum alloy ramp ladder according to claim 1, characterized in that: The top of the ramp plate is also provided with friction grooves along the length direction of the ramp plate, which are used to increase the friction coefficient of the ramp plate surface and prevent the goods from slipping on the ramp plate surface.

5. The heavy-duty aluminum alloy ramp ladder according to claim 1, characterized in that: The main beam includes a square frame with a rectangular cross section and a plurality of reinforcing ribs located inside the square frame, and the reinforcing ribs are used to enhance the structural strength of the square frame.

6. The heavy-duty aluminum alloy ramp ladder according to claim 3, characterized in that: The connecting beams are all aluminum alloy square tubes, and the main beams and the connecting beams are welded together.

Images