Dismounting stand column of composite high-rail trailer
By integrating the main frame of the composite high-sided trailer post with polyurethane foam board and using a rotating fixed handle design, the problems of heavy post weight, high energy consumption, and unstable connection are solved, achieving lightweight, deformation resistance, and efficient disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG BOXES NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-08-02
- Publication Date
- 2026-05-15
AI Technical Summary
Existing high-sided trailer uprights are heavy, energy-intensive, have poor cushioning performance, unstable connections, and are difficult to disassemble and adjust flexibly, affecting cargo securing and trailer reliability.
The main frame is integrally molded with polyurethane foam board, and the design of rotating fixed handle and bushing ensures installation accuracy and connection reliability. The use of bending limit plate and screw structure improves assembly efficiency and stability.
The weight and energy consumption of the uprights are reduced, the resistance to deformation is enhanced, the reliability of the connection and the assembly efficiency are improved, and the flexible disassembly and stable load-bearing requirements of high-sided trailers are met.
Smart Images

Figure CN224241118U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile pillar technology, and in particular to a disassembly pillar for a composite high-sided trailer. Background Technology
[0002] During the use of high-sided trailers, the uprights, as key load-bearing components, play an important role in limiting the movement of goods and ensuring the overall structural stability.
[0003] Existing trailer uprights are mostly single metal frame structures, which suffer from high weight and energy consumption. Furthermore, the metal frame itself has poor cushioning performance and is prone to deformation and damage due to stress concentration when exposed to bumps and impacts. In addition, the connections between the various components of the upright are often made by simple bolt direct connection, which results in low positioning accuracy and poor assembly efficiency during installation. The connection points are prone to damage due to excessive local stress, and under long-term vibration, the connections are prone to loosening, affecting the effectiveness of the upright in securing the cargo and the overall reliability of the trailer. Moreover, for usage scenarios that require flexible disassembly and adjustment, the traditional upright structure makes it difficult to easily disassemble and adjust the position of components, and cannot meet the diverse and efficient usage needs of high-sided trailers. Utility Model Content
[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a detachable column for a composite high-sided trailer.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A detachable upright for a composite high-sided trailer includes:
[0007] Main frame and fixing parts;
[0008] The main frame is connected to a reinforcing part, and the main frame and the reinforcing part are integrally formed.
[0009] A rotating fixing handle is detachably connected to the main frame, and a first nut is threaded onto the rotating fixing handle. The fixing part is connected to the main frame through the rotating fixing handle and the first nut.
[0010] The main frame is detachably connected to a fixed base at its bottom.
[0011] Preferably, a first bushing is detachably connected to the fixing part, and the rotating fixing handle is connected in the first bushing.
[0012] Furthermore, a first connecting plate and a second connecting plate are fixedly connected to the fixed base. A screw and a second nut are detachably connected to the first connecting plate. The screw passes through the second connecting plate and the first connecting plate and is threadedly connected to the second nut.
[0013] Furthermore, a second bushing is detachably connected to the second connecting plate, and the screw is connected in the second bushing.
[0014] Preferably, the reinforcing part is a polyurethane foam board.
[0015] Furthermore, the first connecting plate is a bending limiting plate.
[0016] Compared with the prior art, this utility model provides a detachable upright for a composite high-sided trailer, which has the following advantages:
[0017] 1. The main frame and the polyurethane foam board reinforcement in this utility model are integrally formed. The polyurethane foam board has low density and light weight, which can effectively control the overall weight of the column and reduce the energy consumption of the trailer while enhancing the strength and rigidity of the main frame. The integral molding process eliminates the connection gaps, avoids stress concentration, and improves the column's resistance to deformation and damage. Combined with the buffering properties of the polyurethane foam board, it can absorb the energy of bumps and impacts, ensuring the long-term stability of the column structure.
[0018] 2. In this utility model, the fixing part is connected by a first bushing and a rotating fixing handle. The first bushing positions and guides the rotating fixing handle, ensuring installation accuracy, distributing the force, preventing local damage to the fixing part, and improving assembly efficiency and connection reliability. The first connecting plate and the second connecting plate at the fixing base cooperate to precisely limit the screw and guide the screw to install quickly. The bending structure enhances the strength of the connecting plate itself, better bears the load, and ensures a stable connection between the base and the main frame.
[0019] 3. In this utility model, the second bushing is installed on the second connecting plate. After the screw is inserted, it not only reduces the wear between the screw and the hole wall of the connecting plate and extends the service life of the screw, but also maintains the correct installation position of the screw through positioning, ensuring the long-term stability of the connection between the fixed base and the main frame, so that the column can work reliably under the complex working conditions of the trailer, and meets the needs of flexible disassembly and stable load-bearing of the high-sided trailer. Attached Figure Description
[0020] Figure 1 This utility model provides a schematic diagram of the detachable support column for a composite high-sided trailer. Figure 1 ;
[0021] Figure 2 This utility model provides a schematic diagram of the detachable support column for a composite high-sided trailer. Figure 2 ;
[0022] Figure 3 An exploded view of the disassembled uprights of a composite high-sided trailer proposed in this utility model;
[0023] Figure 4This is a schematic diagram of the structure of the fixed base in the disassembly column of a composite high-sided trailer proposed in this utility model.
[0024] In the figure: 1. Main frame; 2. Reinforcing part; 3. Rotating and fixing handle; 301. First nut; 302. First bushing; 4. Fixed base; 5. Fixing part; 6. First connecting plate; 7. Second nut; 8. Screw; 9. Second bushing; 10. Second connecting plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] Example:
[0027] Reference Figures 1-4 A detachable upright for a composite high-sided trailer includes:
[0028] Main frame 1 and fixing part 5;
[0029] The main frame 1 is internally connected to a reinforcing part 2, and the main frame 1 and the reinforcing part 2 are integrally formed.
[0030] A rotating fixing handle 3 is detachably connected to the main frame 1. A first nut 301 is threadedly connected to the rotating fixing handle 3. The fixing part 5 is connected to the main frame 1 through the rotating fixing handle 3 and the first nut 301.
[0031] The bottom of the main frame 1 is detachably connected to a fixed base 4.
[0032] Reinforcing part 2 is made of polyurethane foam board.
[0033] In practice, the main frame 1 and the reinforcing part 2 are formed by molding process, which will not be described in detail in this application.
[0034] The main frame 1, as the basic load-bearing structure of the column, needs to have high strength and stability. The reinforcement part 2 is made of polyurethane foam board and is integrally formed with the main frame 1. The polyurethane foam board has low density and light weight, which can effectively control the overall weight of the column and reduce the energy consumption of the trailer while increasing the strength and rigidity of the main frame structure.
[0035] It should be noted that the one-piece molding process ensures the tightness of the connection between the main frame and the reinforcing parts. When under stress, they can work together to bear the load, avoiding stress concentration between components due to connection gaps. This improves the column's resistance to deformation and damage, extends its service life, and the cushioning properties of the polyurethane foam board can also absorb some energy when the trailer encounters bumps and impacts, weakening the impact on the main frame 1 and ensuring the stability of the column structure.
[0036] A first bushing 302 is detachably connected to the fixing part 5, and a rotating fixing handle 3 is connected in the first bushing 302.
[0037] Reference Figure 3 The first bushing 302 can position and guide the rotating fixed handle to ensure installation accuracy, while distributing the force on the connection between the handle and the fixed part to prevent damage to the fixed part due to excessive local force.
[0038] A first connecting plate 6 and a second connecting plate 10 are fixedly connected to the fixed base 4. A screw 8 and a second nut 7 are detachably connected to the first connecting plate 6. The screw 8 passes through the second connecting plate 10 and the first connecting plate 6 and is threadedly connected to the second nut 7.
[0039] The first connecting plate 6 is a bending limiting plate.
[0040] Reference Figure 3 , Figure 4 The first connecting plate 6 on the fixed base 4 is designed as a bending limiting plate, which works with the second connecting plate 10 to precisely limit the movement of components such as the screw 8. During installation, it guides the screw to quickly enter the preset position, improving assembly efficiency. Setting the first connecting plate 6 as a bending plate increases the structural strength of the first connecting plate 6 itself. Compared with a flat plate structure, it has stronger resistance to bending and torsion, and can better withstand the fastening force transmitted by the screw and various loads in the use of the trailer, ensuring the reliability of the connection between the base and the main frame.
[0041] A second bushing 9 is detachably connected to the second connecting plate 10, and a screw 8 is connected to the second bushing 9.
[0042] Reference Figure 3 , Figure 4 The second bushing 9 is installed on the second connecting plate 10, and the screw 8 passes through it. The second bushing 9 protects the screw, reduces wear between the screw 8 and the hole wall of the connecting plate, and extends the service life of the screw 8. On the other hand, the positioning of the second bushing 9 ensures that the screw 8 is always in the correct installation position, maintaining the stability and reliability of the connection.
[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A detachable upright for a composite high-sided trailer, characterized in that, include: Main frame (1) and fixing part (5); The main frame (1) is internally connected to a reinforcing part (2), and the main frame (1) and the reinforcing part (2) are integrally formed; A rotating fixing handle (3) is detachably connected to the main frame (1), and a first nut (301) is threaded onto the rotating fixing handle (3). The fixing part (5) is connected to the main frame (1) through the rotating fixing handle (3) and the first nut (301). The bottom of the main frame (1) is detachably connected to a fixed base (4).
2. The detachable upright of a composite high-sided trailer according to claim 1, characterized in that, The fixing part (5) is detachably connected to the first bushing (302), and the rotating fixing handle (3) is connected in the first bushing (302).
3. The detachable upright of a composite high-sided trailer according to claim 1, characterized in that, The fixed base (4) is fixedly connected to a first connecting plate (6) and a second connecting plate (10). The first connecting plate (6) is detachably connected to a screw (8) and a second nut (7). The screw (8) passes through the second connecting plate (10) and the first connecting plate (6) and is threadedly connected to the second nut (7).
4. The detachable upright of a composite high-sided trailer according to claim 3, characterized in that, A second bushing (9) is detachably connected to the second connecting plate (10), and the screw (8) is connected in the second bushing (9).
5. The detachable upright of a composite high-sided trailer according to claim 1, characterized in that, The reinforcing part (2) is a polyurethane foam board.
6. The detachable upright of a composite high-sided trailer according to claim 3, characterized in that, The first connecting plate (6) is a bending limiting plate.