A simple toolbox mechanism with integrated side protection netting and a semi-trailer
By integrating the side protection net with the toolbox into a cage-like structure, the problem of non-standard installation of the side protection device and toolbox on semi-trailers is solved, achieving high-strength protection and convenient storage.
Patent Information
- Application Number
- CN202522631711.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-11
AI Technical Summary
In the existing technology, the installation of side guards and toolboxes on semi-trailers lacks standard constraints, leading to safety risks and insufficient structural strength.
Design a simple toolbox mechanism with integrated side protection netting. Fix the toolbox hanger to the outer end of the longitudinal beam of the vehicle frame. The toolbox body is a cage structure with a movable and closable door. The whole structure forms a side protection netting. The structural strength is ensured through the cage design and connection relationship.
The design integrates the side protection net and the toolbox, improving structural strength and protection capabilities while providing convenient tool storage space and reducing additional load.
Smart Images

Figure CN224941046U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semi-trailer technology, specifically to a simple toolbox mechanism with integrated side protection netting and a semi-trailer. Background Technology
[0002] As required by national standards, all semi-trailers need side protection devices, the main function of which is to prevent other objects, such as vehicles, from intruding from the side under the semi-trailer during the journey, causing serious accidents.
[0003] At the same time, semi-trailer trucks, which are large transport vehicles, often have long transport distances and cycles, traveling between relatively distant locations. Therefore, drivers usually need to have strong independent maintenance capabilities. In addition, since semi-trailer transport requires adaptive adjustments, fixation, or covering based on the characteristics of the cargo, additional tools such as ropes or tarpaulins are needed. Therefore, optional toolboxes for maintenance and temporary storage are also in mainstream market demand.
[0004] For the reasons mentioned above, side protection devices have corresponding national standards and sufficient structural strength, while the installation of toolboxes purchased or temporarily configured by drivers lacks corresponding standard constraints, which can easily lead to safety risks. Both are external structures, and how to properly adapt and combine the two to meet the structural strength requirements and also have the ability to store tools is a technical problem that urgently needs to be solved by those skilled in the art.
[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content
[0006] The purpose of this utility model is to address the shortcomings of existing technologies by providing an effective integrated toolbox and side protection net structure that combines the functions of both the side protection net and the toolbox, while ensuring structural strength.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a simple toolbox mechanism with integrated side protection netting, including a frame, a toolbox hanger, a toolbox body, and a movable box door; The inner end of the toolbox hanger is fixed to the outer end of the longitudinal beam of the vehicle frame, and the outer end of the toolbox hanger is suspended in the air. The toolbox body is installed at the lower end of the toolbox hanger. The toolbox body has a cage-like structure. The movable door is installed on the outside of the toolbox body. The bottom end of the movable door is hinged to the bottom end of the toolbox body, and the top end is connected to the top end of the toolbox body through a locking structure. The toolbox hanger, toolbox body, and movable door together constitute the side protective net of the vehicle frame.
[0008] This utility model effectively integrates the concepts of side protective netting and toolbox. Specifically, a toolbox hanger is fixed to the outer end of the longitudinal beam of the frame, serving as the structural foundation of the entire toolbox structure. The toolbox body is designed as a cage structure, placed at the bottom of the toolbox hanger, with the outer end closed by a movable door. The movable door allows the toolbox body to be opened to store items. The toolbox hanger, toolbox body, and movable door together constitute the side protective netting of the frame. This structure achieves the organic integration of the side protective netting and the toolbox. At the same time, through the cage design and the connection design with the frame, the side protective netting also has strong structural strength.
[0009] Based on the above, the toolbox body includes a rectangular cage structure composed of several longitudinal beams and transverse beams. The top of the rectangular cage structure is open, and protective nets are provided at the inner end, bottom end, and front and rear ends of the rectangular cage structure. The top of the inner end of the rectangular cage structure is fixed to the bottom end of the longitudinal beam of the frame or the bottom end of the toolbox hanger. The top of the outer end of the rectangular cage structure is connected to the toolbox hanger through a through beam.
[0010] This design aims to optimize the usability of the cage structure while enhancing its structural strength without adding excessive structural components. The open top allows for easy access to larger tools, such as canopies, and the flip-open outer doors, combined with the open top, provide adjustable storage space for larger tools. Furthermore, the structure features a lightweight design, reducing additional load, while the toolbox hanger as the core structural foundation ensures the overall structural robustness and stability.
[0011] Based on the above, the overall length of the movable door is greater than the length of the toolbox body.
[0012] The side protection net needs to protect the area between two adjacent sets of tires. The cage-like box structure does not need to be that large. Therefore, the design of extending the entire movable box door to cover the entire protection area and ensure protection requirements is a reasonable solution.
[0013] Based on the above, the rear end of the movable door is bent inward.
[0014] This bending structure allows the structure to deform inward after a lateral impact, while simultaneously providing an outward guiding surface to the source of the impact, preventing the vehicle from further intruding into the vehicle body and improving safety.
[0015] Based on the above, the top of the movable box door is locked to the toolbox body by a spring hook lock or a turn lock, and the bottom of the movable box door is hinged to the toolbox body by a number of hinge structures.
[0016] Based on the above, the toolbox body is provided with a limiting plate to restrict the outward rotation angle of the movable door. For example, once it is rotated to a horizontal position, it will no longer rotate, which provides a certain degree of convenience for use as a tool platform.
[0017] Based on the above, the movable door includes a frame structure composed of upper and lower longitudinal beams and several transverse beams, and the frame structure is filled with a wire mesh panel.
[0018] The overall structure is designed with lightweight as the goal, while also ensuring structural strength.
[0019] Based on the above, the outer end of the toolbox body extends to the outer end of the toolbox hanger.
[0020] The entire cage structure is placed below the toolbox hanger, and the overall structure is built on the basis of the toolbox hanger, ensuring structural strength and stability.
[0021] Based on the above, the top edge of the toolbox hanger is a sloping side that slopes downwards, the total length of the toolbox hanger is greater than the total length of its outer end, and a weight-reducing hole is provided in the middle of the toolbox hanger. This design is also for weight reduction, while ensuring the connection strength with the longitudinal beams of the vehicle frame.
[0022] A semi-trailer includes the aforementioned integrated simple toolbox mechanism with side protective netting.
[0023] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model realizes the organic integration of vehicle side protection net and toolbox. The side protection net as a whole forms a cage structure, which is stronger, less prone to deformation, and has stronger impact resistance compared to the traditional single-sided protection net structure. As for the toolbox, it has a large storage space, is convenient and easy to use, and does not require an additional mechanism for storing tools.
[0024] Furthermore, the entire simplified toolbox mechanism is designed with lightweight and ease of use as the goals, while ensuring the structural strength of the entire toolbox mechanism as much as possible while achieving the goal of lightweight. Attached Figure Description
[0025] Figure 1 This is a front structural diagram of the simple toolbox mechanism with integrated side protective netting of this utility model.
[0026] Figure 2 This is a top view of the integrated simple toolbox mechanism with side protective netting of this utility model.
[0027] Figure 3 This is a side view of the integrated simple toolbox mechanism with side protective netting in this utility model.
[0028] In the diagram: 1. Frame; 2. Toolbox hanger; 3. Toolbox body; 4. Movable door; 5. Hinge structure; 6. Spring hook lock; 11. Frame longitudinal beam; 12. Triangle plate; 31. Longitudinal beam; 32. Cross beam; 33. Protective net; 34. Through beam. Detailed Implementation
[0029] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0030] Example 1 like Figures 1-3 As shown, a simple toolbox mechanism with integrated side protection netting includes a frame 1, a toolbox hanger 2, a toolbox body 3, and a movable door 4.
[0031] The inner end of the toolbox hanger 2 is fixed to the outer end of the longitudinal beam 11 of the frame 1, and the outer end of the toolbox hanger 2 is suspended. In this embodiment, the toolbox hanger 2 is a trapezoidal structure with a higher inner end, a lower outer end, a sloping top edge, and a horizontal bottom edge. The upper and lower edges extend to the horizontal sides, making the cross section of the entire toolbox hanger 2 "I" shaped, so as to ensure structural strength and improve the ability to resist bending deformation. Several weight-reducing holes are provided in the middle to reduce weight.
[0032] The toolbox body 3 is installed at the lower end of the toolbox hanger 2, with its outermost end extending to the outer end of the toolbox hanger 2. The toolbox body 3 has a cage-like structure. The movable door 4 is installed on the outside of the toolbox body 3. The bottom end of the movable door 4 is hinged to the bottom end of the toolbox body 3, and the top end is connected to the top end of the toolbox body 3 through a locking structure.
[0033] The entire toolbox body 3 is based on the toolbox hanger 2. In this embodiment, the toolbox body 3 includes a rectangular cage structure composed of several longitudinal beams 31 and transverse beams 32. The top of the rectangular cage structure is open. The inner end, bottom end and front and rear ends of the rectangular cage structure are provided with protective nets 33. The top of the inner end of the rectangular cage structure is fixed to the bottom end of the longitudinal beam of the frame or the bottom end of the toolbox hanger. The top of the outer end of the rectangular cage structure is connected to the toolbox hanger 2 through a through beam 34.
[0034] The main purpose of the above structural design is to reduce weight while ensuring structural strength. The cage structure itself has a certain thickness, which can effectively absorb energy from side impacts. The protective net 33 forms the side and bottom walls of the toolbox structure and is used to place conventional tools. Of course, the tool hole diameter of the protective net 33 cannot be larger than the size of the tool itself. Generally, it is used to store storage boxes for commonly used tools, tarpaulins, ropes, oil cans, water cans and other larger tools. Small operating tools such as wrenches will not be placed separately to ensure tool safety.
[0035] In addition, to ensure structural strength, the cage structure composed of longitudinal beams 31 and crossbeams 32 is fixed by the frame longitudinal beams 11 and the toolbox hanger 2. At the connection between the frame longitudinal beams 11 and the longitudinal beams 31 or crossbeams 32 of the toolbox body 3, a corresponding triangular plate 12 structure can be added to further improve the stability of the connection.
[0036] In a preferred embodiment, the overall length of the movable door 4 is greater than the length of the toolbox 3, and the rear end of the movable door is bent inward.
[0037] The main reason for this design is based on the need for safety protection. The length of the movable door 4 can be extended to cover the space between two adjacent sets of wheels, increasing the protection area. The curved structure at the rear end can act as a guide structure when foreign objects intrude, preventing them from entering the vehicle.
[0038] In terms of structural design, the movable box door 4 also follows the lightweight design concept, but since it is the direct protective surface, it also needs to have a certain structural strength. The movable box door 4 includes a square frame structure composed of upper and lower longitudinal beams and several cross beams. The square frame structure is filled with a mesh plate, which has sufficient side protection capability.
[0039] In this embodiment, the top of the movable box door 4 is locked to the toolbox body 3 by a spring hook lock 6, and the bottom of the movable box door 4 is hinged to the toolbox body by a number of hinge structures 5.
[0040] In other embodiments, the lock can also be a rotary lock or other structure, which is relatively conventional and offers more options.
[0041] In other embodiments, the toolbox is provided with a limiting plate (not shown in the figure) for limiting the outward rotation angle of the movable box door, for example, so that it will no longer rotate after being rotated to a horizontal state, which can provide a certain degree of convenience and be used as a tool platform.
[0042] Technical principle explanation: In this embodiment, the concepts of side protective netting and toolbox are effectively integrated. Specifically, a toolbox hanger 2 is fixed to the outer end of the longitudinal beam 11 of the frame, serving as the structural foundation of the entire toolbox structure. The toolbox body 3, together with the movable door 4, is designed as a cage structure and is placed at the bottom of the toolbox hanger 2. The outer end is closed by the movable door 4, which allows the toolbox body 3 to be opened to store items. The toolbox hanger 2, the toolbox body 3, and the movable door 4 together constitute the side protective netting of the frame 1. This structure achieves the organic integration of the side protective netting and the toolbox. At the same time, through the cage design and the connection design with the frame, the side protective netting also has strong structural strength.
[0043] When subjected to a side impact, the movable door 4 is the first to be impacted, and the toolbox 3 acts as a buffer structure to absorb energy, preventing intruders from causing serious damage to the frame and providing better protection. The toolbox 3 itself has the capacity to hold tools and provides convenience, without affecting the side protection function itself, so it has good value for promotion and application.
[0044] Example 2 A semi-trailer includes the aforementioned integrated simple toolbox mechanism with side protective netting.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A simple toolbox mechanism with integrated side protection netting, characterized in that: Includes the frame, toolbox hanger, toolbox body, and movable toolbox door; The inner end of the toolbox hanger is fixed to the outer end of the longitudinal beam of the vehicle frame, and the outer end of the toolbox hanger is suspended in the air. The toolbox body is installed at the lower end of the toolbox hanger. The toolbox body has a cage-like structure. The movable door is installed on the outside of the toolbox body. The bottom end of the movable door is hinged to the bottom end of the toolbox body, and the top end is connected to the top end of the toolbox body through a locking structure. The toolbox hanger, toolbox body, and movable door together constitute the side protective net of the vehicle frame.
2. The integrated simple toolbox mechanism with side protective netting according to claim 1, characterized in that: The toolbox body includes a rectangular cage structure composed of several longitudinal beams and transverse beams. The top of the rectangular cage structure is open. Protective nets are provided at the inner end, bottom end, and front and rear ends of the rectangular cage structure. The top of the inner end of the rectangular cage structure is fixed to the bottom end of the longitudinal beam of the frame or the bottom end of the toolbox hanger. The top of the outer end of the rectangular cage structure is connected to the toolbox hanger through a through beam.
3. The integrated simple toolbox mechanism with side protective netting according to claim 2, characterized in that: The overall length of the movable box door is greater than the length of the toolbox body.
4. The integrated simple toolbox mechanism with side protective netting according to claim 1 or 3, characterized in that: The rear end of the movable box door is bent inward.
5. The integrated simple toolbox mechanism with side protective netting according to claim 1, characterized in that: The top of the movable box door is locked to the toolbox body by a spring hook lock or a turn lock, and the bottom of the movable box door is hinged to the toolbox body by several hinge structures.
6. The integrated simple toolbox mechanism with side protective netting according to claim 1, characterized in that: The toolbox is equipped with a limiting plate to restrict the outward rotation angle of the movable box door.
7. The integrated simple toolbox mechanism with side protective netting according to claim 1, characterized in that: The movable door comprises a frame structure consisting of upper and lower longitudinal beams and several transverse beams, and the frame structure is filled with a mesh panel.
8. The integrated simple toolbox mechanism with side protective netting according to claim 1, characterized in that: The outer end of the toolbox body extends to the outer end of the toolbox hanger.
9. The integrated simple toolbox mechanism with side protective netting according to claim 1, characterized in that: The top edge of the toolbox hanger is a sloping side that slopes downwards. The total length of the toolbox hanger is greater than the total length of the outer end. A weight-reducing hole is provided in the middle of the toolbox hanger.
10. A semi-trailer, characterized in that: Includes the integrated simple toolbox mechanism with side protection net as described in any one of claims 1-9.
