A reinforced arc-shaped curved plate structure support leg

By combining the design of the reinforced arc-shaped curved plate structure, the problems of insufficient contact and weak connection strength of the semi-trailer outriggers on uneven road surfaces are solved, thereby improving the stability and safety of the outriggers.

CN224277127UActive Publication Date: 2026-05-26YANGZHOU TONGHAI AUTO PARTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU TONGHAI AUTO PARTS CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

When existing semi-trailer outriggers are deployed on uneven roads, the bottom plate does not make sufficient contact with the ground, resulting in concentrated pressure, which can easily cause tilting or damage. Furthermore, the structural strength of the connection is insufficient, making it prone to breakage under heavy loads.

Method used

The structure adopts a reinforced arc-shaped curved plate structure, which includes a combination design of a base plate, a reinforcing plate, a reinforcing block, and an arc plate. This design ensures that the base plate makes full contact with the ground, and the structural strength of the connection is enhanced by the reinforcing block and the reinforcing plate.

Benefits of technology

It improves the stability and connection strength of the outriggers on uneven surfaces, reduces the chance of accidental tilting and breakage, and ensures the safety and durability of the outriggers.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224277127U_ABST
    Figure CN224277127U_ABST
Patent Text Reader

Abstract

This utility model provides a reinforced arc-shaped curved plate structure support leg, comprising: a base plate, on the upper surface of which a reinforcing plate, a strengthening plate, and a strengthening block are fixedly connected respectively. The strengthening block is fixedly connected to the outer side of the reinforcing plate, and the strengthening plate is fixedly connected to the inner side of the reinforcing plate. A connecting pipe is fixedly connected to the upper end of the reinforcing plate, and arc-shaped plates are symmetrically connected to both ends of the upper surface of the connecting pipe. The arc-shaped plates are fixedly connected to the surface of the reinforcing plate. A through hole is formed at the lower end of the inner pipe, and the connecting pipe is movably connected within the through hole. This utility model, through the cooperation of the reinforcing plate, connecting pipe, arc-shaped plate, strengthening plate, and strengthening block, enables a movable connection between the base plate and the inner pipe, and effectively enhances the structural strength between the base plate, the connecting pipe, and the strengthening plate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer outrigger technology, specifically to an outrigger with a reinforced arc-shaped curved plate structure. Background Technology

[0002] Semi-trailers are a widely used mode of transportation in modern transportation. When in motion, the front end of a semi-trailer can be connected to and supported by a tractor unit. When not in motion, the front end of the semi-trailer can be detached from the tractor unit. To support the front end of the semi-trailer after detachment, landing gear is often installed near the bottom of the semi-trailer's front end. These landing gears are typically fixed to the side of the semi-trailer's frame using connecting plates. However, in common landing gear systems, the inner tubes are usually fixedly connected to the bottom plate, which leads to issues with the bottom of the landing gear system. When the outriggers are deployed on uneven surfaces, the base plate cannot make sufficient contact with the ground, which increases the pressure at the actual contact surface between the base plate and the ground. This can easily cause the outriggers to tilt unexpectedly, increasing the likelihood of damage to the outriggers or the ground. In some outrigger devices where the inner tube and the base plate are movably connected, the connection between the inner tube and the base plate is only a simple plate-like component, resulting in weak structural strength at the connection point. Consequently, when the outriggers are used under heavy loads, the plate-like component connection is prone to breakage. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, a reinforced arc-shaped curved plate structure leg is provided to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, a reinforced arc-shaped curved plate structure support leg is provided, comprising: a base plate, the base plate being connected to an inner tube within the support leg body via a reinforcing plate, the upper surface of the base plate being fixedly connected to a reinforcing plate, a strengthening plate, and a strengthening block, the strengthening block being fixedly connected to the outer side of the reinforcing plate, the strengthening plate being fixedly connected to the inner side of the reinforcing plate, and a connecting pipe being fixedly connected to the upper end of the reinforcing plate, the upper surface of the connecting pipe being symmetrically connected to arc-shaped plates at both ends, the arc-shaped plates being fixedly connected to the surface of the reinforcing plate, and a through hole being opened at the lower end of the inner tube, the connecting pipe being movably connected within the through hole.

[0005] Preferably, there are two sets of reinforcing plates, both sets of reinforcing plates are isosceles trapezoidal in shape, and the horizontal cross-section of the two sets of reinforcing plates is U-shaped.

[0006] Preferably, the bottom plate has a U-shaped cross-section, and the buffer layer fixedly connected to the lower surface of the bottom plate has a rectangular structure. At the same time, the bottom plate and the reinforcing plate are welded and fixed together.

[0007] Preferably, the reinforcing plate has a long strip structure, the end face of the reinforcing plate has an isosceles trapezoidal structure, and the reinforcing plate has a hollow structure. At the same time, a set of reinforcing plates are welded and fixed at both ends of the reinforcing plate.

[0008] Preferably, two sets of reinforcing blocks are welded and fixed to the lower end of the surface of the reinforcing plate. Both sets of reinforcing blocks are right-angled triangular structures, and the lower surface of the reinforcing blocks is welded and fixed to the upper surface of the base plate.

[0009] Preferably, the connecting pipe has a cylindrical structure, and the size of the outer side of the connecting pipe is adapted to the size of the through hole opened at the lower end of the inner pipe. At the same time, marking lines are symmetrically opened at both ends of the outer side of the connecting pipe.

[0010] Preferably, two sets of arc-shaped plates are symmetrically welded to both ends of the outer side of the connecting pipe, and both sets of arc-shaped plates are fan-shaped ring structures. At the same time, the end face of the connecting pipe and the surface of the arc-shaped plates are in the same vertical plane.

[0011] Preferably, the end face of the arc plate has an L-shaped structure, the lower surface of the arc plate is welded with a connecting pipe, and the surface of the reinforcing plate is welded to the bent part of the arc plate. At the same time, a through hole is opened at the upper end of the reinforcing plate relative to the position of the connecting pipe, and the connecting pipe is welded and fixed in the through hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By cooperating with the reinforcing plate and the connecting pipe, the base plate and the inner pipe can be movably connected. When the outrigger body is deployed to support on uneven ground, the base plate can fully contact the ground, thereby effectively reducing the pressure at the actual contact surface between the base plate and the ground. This helps to reduce the probability of the outrigger body being accidentally tilted and damaged or the ground being damaged. At the same time, by cooperating with the reinforcing block, the reinforcing plate and the arc plate, the structural strength of the connection between the reinforcing plate and the base plate and the connecting pipe can be effectively enhanced. This can effectively reduce the probability of the reinforcing plate connection breaking accidentally during heavy-load use of the outrigger device, ensuring the safety and durability of the outrigger device during use. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0014] Figure 2 This is a front view of the inner tube and the base plate according to an embodiment of the present utility model.

[0015] Figure 3 This is a side view of the base plate and reinforcing plate according to an embodiment of the present utility model.

[0016] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged diagram of point A.

[0017] Figure 5 This is a top view of the inner tube and bottom plate of an embodiment of the present utility model.

[0018] In the diagram: 1. Main body of the support leg; 2. Inner tube; 3. Connecting tube; 4. Reinforcing plate; 5. Base plate; 6. Curved plate; 7. Reinforcing block; 8. Reinforcing plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1 to 5 As shown, this utility model provides a reinforced arc-shaped curved plate structure support leg, including: a base plate 5, the base plate 5 is connected to the inner tube 2 inside the support leg body 1 through a reinforcing plate 4, the upper surface of the base plate 5 is respectively fixedly connected to the reinforcing plate 4, the reinforcing plate 8 and the reinforcing block 7, the reinforcing block 7 is fixedly connected to the outer side of the reinforcing plate 4, the reinforcing plate 8 is fixedly connected to the inner side of the reinforcing plate 4, and the upper end of the reinforcing plate 4 is fixedly connected to the connecting pipe 3, and the two ends of the upper surface of the connecting pipe 3 are symmetrically connected to the arc-shaped plate 6, the arc-shaped plate 6 is fixedly connected to the surface of the reinforcing plate 4, and at the same time, a through hole is opened at the lower end of the inner tube 2, and the connecting pipe 3 is movably connected in the through hole.

[0021] In this embodiment, when the semi-trailer needs to be parked, the transmission assembly of the outrigger body 1 is rotated, allowing the inner tube 2 of the outrigger body 1 to unfold downwards. The inner tube 2 then pushes the base plate 5 downwards synchronously through the connecting pipe 3 and the reinforcing plate 4, enabling the base plate 5 to smoothly contact the ground. If the ground is uneven, the base plate 5 can rotate accordingly, allowing the buffer layer on the lower surface of the base plate 5 to fit as closely as possible to the ground, thereby increasing the actual contact area between the base plate 5 and the ground. This effectively enhances the stability of the outrigger after it is unfolded and supported. Furthermore, the reinforcement block 7 and the reinforcement plate 8 help strengthen the structural strength of the connection between the reinforcing plate 4 and the base plate 5. The arc-shaped plate 6 further enhances the structural strength of the connection between the connecting pipe 3 and the reinforcing plate 4, effectively reducing the probability of accidental breakage at the connection points of the reinforcing plate 4 during the unfolding and support process, ensuring the safety of the outrigger during use.

[0022] As a preferred embodiment, there are two sets of reinforcing plates 4. Both sets of reinforcing plates 4 have an isosceles trapezoidal structure, and the horizontal cross-section of the two sets of reinforcing plates 4 has a U-shaped structure.

[0023] In this embodiment, as Figure 2 , Figure 3 and Figure 5The structural design of the reinforcing plate 4 not only helps to enhance the welding and fixing effect between the reinforcing plate 4 and the base plate 5, but also helps to enhance its own structural strength and reduce the probability of the reinforcing plate 4 being accidentally deformed and damaged during use.

[0024] In a preferred embodiment, the base plate 5 has a U-shaped cross-section, and the buffer layer fixedly connected to the lower surface of the base plate 5 has a rectangular structure. At the same time, the base plate 5 and the reinforcing plate 4 are welded and fixed together.

[0025] In this embodiment, as Figure 2 The buffer layer can be made of rubber, which can help enhance the buffering effect when the base plate 5 comes into contact with the ground, thereby helping to reduce the chance of the ground being damaged.

[0026] As a preferred embodiment, the reinforcing plate 8 has a long strip structure, the end face of the reinforcing plate 8 has an isosceles trapezoidal structure, and the reinforcing plate 8 has a hollow structure. At the same time, a set of reinforcing plates 4 are welded and fixed at both ends of the reinforcing plate 8.

[0027] In this embodiment, as Figure 2 and Figure 3 The structure of the reinforcing plate 8 can help reduce its own weight and also help enhance the structural strength of the connection between the reinforcing plate 4 and the base plate 5.

[0028] As a preferred embodiment, two sets of reinforcing blocks 7 are welded and fixed to the lower end of the surface of the reinforcing plate 4. Both sets of reinforcing blocks 7 are right-angled triangular structures, and the lower surface of the reinforcing blocks 7 is welded and fixed to the upper surface of the base plate 5.

[0029] In this embodiment, as Figure 2 , Figure 3 and Figure 5 The reinforcement block 7 helps to enhance the structural strength of the connection between the base plate 5 and the reinforcing plate 4, thereby reducing the probability of accidental breakage or torsional deformation at the connection between the reinforcing plate 4 and the base plate 5.

[0030] As a preferred embodiment, the connecting pipe 3 has a cylindrical structure, and the size of the outer side of the connecting pipe 3 is matched with the size of the through hole opened at the lower end of the inner pipe 2. At the same time, marking lines are symmetrically opened at both ends of the outer side of the connecting pipe 3.

[0031] In this embodiment, as Figure 2 , Figure 3 and Figure 4 The dimensions of the connecting pipe 3 and the through hole are matched, which helps to enhance the stability of the connecting pipe 3 when rotating. At the same time, the marking lines on the outer side of the connecting pipe 3 facilitate the efficiency of workers assembling the connecting pipe 3 and the inner pipe 2.

[0032] As a preferred embodiment, two sets of arc-shaped plates 6 are symmetrically welded to both ends of the outer side of the connecting pipe 3, and both sets of arc-shaped plates 6 are fan-shaped annular structures. At the same time, the end face of the connecting pipe 3 and the surface of the arc-shaped plates 6 are in the same vertical plane.

[0033] In this embodiment, as Figure 2 , Figure 3 and Figure 4 The end face of the connecting pipe 3 and the surface of the arc plate 6 are coplanar, which can reduce the difficulty of subsequent welding and fixing, thereby improving the efficiency of the assembly of the various components of the leg. At the same time, it can also help limit the movement range of the connecting pipe 3 and prevent the connecting pipe 3 from accidentally detaching during the assembly process.

[0034] In a preferred embodiment, the end face of the arc plate 6 is L-shaped, the connecting pipe 3 is welded to the lower surface of the arc plate 6, and the surface of the reinforcing plate 4 is welded to the bent part of the arc plate 6. At the same time, a through hole is opened at the upper end of the reinforcing plate 4 relative to the position of the connecting pipe 3, and the connecting pipe 3 is welded and fixed in the through hole.

[0035] In this embodiment, as Figure 2 , Figure 3 and Figure 4 The structure of the arc plate 6 can help increase the welding area between the reinforcing plate 4 and the connecting pipe 3, thereby effectively enhancing the structural strength of the connection between the connecting pipe 3 and the reinforcing plate 4 and reducing the probability of accidental breakage between the connecting pipe 3 and the reinforcing plate 4.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leg of a reinforced curved plate structure, comprising: The base plate (5) is connected to the inner tube (2) inside the leg body (1) by a reinforcing plate (4). The base plate (5) is characterized in that: the upper surface of the base plate (5) is fixedly connected to the reinforcing plate (4), the strengthening plate (8) and the strengthening block (7), the strengthening block (7) is fixedly connected to the outer side of the reinforcing plate (4), the strengthening plate (8) is fixedly connected to the inner side of the reinforcing plate (4), and the upper end of the reinforcing plate (4) is fixedly connected to the connecting pipe (3). The upper surface of the connecting pipe (3) is symmetrically connected to the arc plate (6) at both ends, the arc plate (6) is fixedly connected to the surface of the reinforcing plate (4), and at the same time, the lower end of the inner tube (2) is opened with a through hole, and the connecting pipe (3) is movably connected in the through hole.

2. A leg for a reinforced curved plate structure according to claim 1, characterized in that There are two sets of reinforcing plates (4). Both sets of reinforcing plates (4) are isosceles trapezoidal in shape, and the horizontal cross-section of the two sets of reinforcing plates (4) is U-shaped.

3. A leg for a reinforced curved plate structure according to claim 1, characterized in that The bottom plate (5) has a U-shaped cross section, and the buffer layer fixedly connected to the lower surface of the bottom plate (5) has a rectangular structure. At the same time, the bottom plate (5) and the reinforcing plate (4) are welded and fixed together.

4. The reinforced arcuate curved plate structure leg of claim 1, wherein, The reinforcing plate (8) has a long strip structure, the end face of the reinforcing plate (8) has an isosceles trapezoidal structure, and the reinforcing plate (8) has a hollow structure. At the same time, a set of reinforcing plates (4) are welded and fixed at both ends of the reinforcing plate (8).

5. The reinforced curved plate structure leg according to claim 1, wherein Two sets of reinforcing blocks (7) are welded and fixed to the lower end of the surface of the reinforcing plate (4). Both sets of reinforcing blocks (7) are right-angled triangular structures, and the lower surface of the reinforcing blocks (7) is welded and fixed to the upper surface of the base plate (5).

6. A leg for a reinforced curved plate structure according to claim 1, wherein The connecting pipe (3) has a cylindrical structure, and the size of the outer side of the connecting pipe (3) is compatible with the size of the through hole at the lower end of the inner pipe (2). At the same time, marking lines are symmetrically opened at both ends of the outer side of the connecting pipe (3).

7. The reinforced arcuate curved plate structure leg according to claim 1, wherein Two sets of arc plates (6) are symmetrically welded to both ends of the outer side of the connecting pipe (3), and both sets of arc plates (6) are fan-shaped ring structures. At the same time, the end face of the connecting pipe (3) and the surface of the arc plate (6) are in the same vertical plane.

8. The reinforced arcuate curved plate structure leg according to claim 1, wherein The end face of the arc plate (6) is L-shaped. The lower surface of the arc plate (6) is welded with a connecting pipe (3), and the surface of the reinforcing plate (4) is welded to the bent part of the arc plate (6). At the same time, a through hole is opened at the upper end of the reinforcing plate (4) relative to the position of the connecting pipe (3), and the connecting pipe (3) is welded and fixed in the through hole.