A roof system with an ultra-large-span lightweight main truss structure
By installing an anti-collision mechanism on the outside of the support column and utilizing a multi-layered buffer design of buffer plates, movable rods, and springs, the problem of easy damage to the support column is solved, achieving effective protection against vehicle impacts and ensuring the stability of the roof system.
Patent Information
- Application Number
- CN202521965178.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-06-19
- Estimated Expiration
- 2035-09-12
AI Technical Summary
Existing factory roof systems with ultra-large span lightweight main truss structures lack collision protection in the lower half of the supporting columns, making the supporting columns prone to deformation and breakage when hit by vehicles. In severe cases, this may lead to the collapse of the roof truss and structural instability.
An anti-collision mechanism is installed on the lower outer side of the support column, including a circumferentially distributed buffer plate, a movable rod, a buffer spring, and a rubber pad. The support column is protected by a multi-layer buffer structure, and the hollow structure and through-slot design of the movable rod enhance the buffering effect.
It effectively cushions vehicle impacts, protects support columns, prevents deformation and breakage, ensures the stability of the roof system, and avoids roof truss collapse.
Smart Images

Figure CN224379228U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of truss roofing technology, specifically a roofing system with a lightweight main truss structure with an ultra-large span. Background Technology
[0002] Truss members primarily bear axial tension or compression, thus fully utilizing the strength of the material. When the span is large, it can save material compared to solid web beams, reducing self-weight and increasing stiffness. The advantage of trusses is that the members mainly bear tension or compression, which can fully utilize the material, save material, reduce structural weight, and achieve a lightweight effect. Roofing systems with ultra-large span lightweight main truss structures are mainly used in factories and are generally composed of roof trusses and supporting columns. For example, patent document CN201810243007.4, entitled "A Large Span Multi-section Composite Truss Roofing Structure System and Its Construction Method", describes a roof structure as a truss structure with supporting columns connected at the bottom.
[0003] Factory buildings with ultra-large span lightweight main truss roof structures have a large area, so vehicles often pass through the factory for loading and unloading. However, the lower half of the supporting columns in the existing technology lacks anti-collision protection, which means that if a vehicle loses control and hits the supporting column, it is easy to cause the supporting column to deform and break. In severe cases, it can cause the roof truss to collapse, resulting in structural instability. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a roofing system with a lightweight main truss structure with an ultra-large span, which solves the problems existing in the prior art.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a roof system with a lightweight main truss structure with an ultra-large span, including a roof truss, wherein support columns are uniformly arranged at the bottom of the roof truss;
[0006] The lower outer side of each support column is equipped with an anti-collision mechanism;
[0007] The anti-collision mechanism includes buffer plates evenly distributed circumferentially on the outside of the support column. Movable rods are evenly inserted through the support column in different directions, and the height of the movable rods in different directions is different. Each end of the movable rod is provided with a mounting ring, and each end of the mounting ring is connected with a bolt. The bolt is connected to a protrusion on the buffer plate. Each side of the mounting rings on both sides is provided with a buffer spring that is sleeved on the movable rod, and each buffer spring on both sides is connected to the support column.
[0008] Preferably, a rubber pad is provided on the side of the buffer plate away from the support column.
[0009] Preferably, the movable rod has a hollow interior and a through groove at its bottom. The support column contains a fixing block that fits and connects to both the through groove and the inner wall of the movable rod. Both ends of the fixing block are provided with buffer components that connect to the movable rod.
[0010] Preferably, the buffer assembly includes a second buffer spring, a connecting ring, and a connecting plate located inside the movable rod. The end of the second buffer spring near the buffer plate is connected to the connecting ring, and the end of the second buffer spring away from the buffer plate is connected to the connecting plate.
[0011] Preferably, the connecting plate is provided with a screw one that connects to the fixed block, and the connecting ring is provided with a screw two that connects to the movable rod.
[0012] Preferably, the protrusion is positioned near the end of the buffer plate.
[0013] This invention provides a roofing system with a lightweight main truss structure with an ultra-large span. Compared with the prior art, it has the following advantages:
[0014] 1. This roof system with an ultra-large span lightweight main truss structure can buffer the impact of a vehicle when it accidentally collides with a support column. The rubber pads in contact with the column first cushion the impact, and then the movable rods on the buffer plate can move the buffer plate on the opposite side. This allows the buffer springs on both sides to extend and retract to buffer the impact. As a result, the buffer effect is better when the impacted buffer plate and the buffer plate opposite to it are moved and buffered.
[0015] 2. This roof system with an ultra-large span lightweight main truss structure allows the movable rod to move on the fixed block through its hollow structure and through slots when the buffer plates on both sides move synchronously. This allows for further buffering through the buffer components on both sides inside the movable rod. This not only saves external space but also improves the buffering capacity and better protects the support columns. This solves the problem in existing technologies where the support columns are easily deformed and broken when a vehicle loses control and hits them, which can lead to the collapse of the roof truss and structural instability in severe cases. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the anti-collision mechanism of this utility model;
[0018] Figure 3 This is a cross-sectional schematic diagram of the anti-collision mechanism of this utility model;
[0019] Figure 4 This utility model Figure 3 A schematic diagram of point A in the middle.
[0020] In the diagram: 1. Roof truss; 2. Support column; 3. Movable rod; 4. Mounting ring; 5. Buffer plate; 6. Rubber pad; 7. Buffer spring one; 8. Protrusion; 9. Bolt; 10. Through groove; 11. Fixing block; 12. Buffer spring two; 13. Connecting ring; 14. Connecting plate; 15. Screw one; 16. Screw two. Detailed Implementation
[0021] 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.
[0022] See Figures 1-4 This utility model provides the following two technical solutions:
[0023] First implementation: A roof system with a lightweight main truss structure with an ultra-large span, including a roof truss 1, with support columns 2 evenly arranged at the bottom of the roof truss 1;
[0024] Anti-collision mechanisms are installed on the lower outer side of each support column 2;
[0025] The anti-collision mechanism includes buffer plates 5 evenly distributed circumferentially on the outside of the support column 2. Movable rods 3 are evenly inserted through the support column 2 in different directions, and the heights of the movable rods 3 in different directions are different, so that the movable rods 3 in different directions will not obstruct each other when moving. Each end of the movable rod 3 is provided with a mounting ring 4, and each end of the mounting ring 4 is connected with a bolt 9. The bolt 9 is connected to a protrusion 8 provided on the buffer plate 5, so that the mounting ring 4 and the buffer plate 5 are detachable. Each side of the mounting ring 4 is provided with a buffer spring 7 sleeved on the movable rod 3, and both sides of the buffer spring 7 are connected to the support column 2. When the buffer plate 5 moves, the mounting ring 4 moves accordingly, so that the buffer spring 7 can extend and retract.
[0026] A rubber pad 6 is provided on the side of the buffer plate 5 away from the support column 2, which can improve the buffering capacity of the buffer plate 5 and protect the buffer plate 5.
[0027] The movable rod 3 has a hollow internal structure, and a through groove 10 is provided at the bottom of the movable rod 3. A fixing block 11 is provided inside the support column 2, which is in close contact with both the through groove 10 and the inner wall of the movable rod 3. Both ends of the fixing block 11 are provided with buffer components connected to the movable rod 3. When the movable rod 3 moves, it moves on the fixing block 11 through the hollow structure and the through groove 10, which allows the buffer components to buffer, improve the buffering capacity, and better protect the support column 2.
[0028] The buffer assembly includes a second buffer spring 12, a connecting ring 13, and a connecting plate 14 located inside the movable rod 3. The end of the second buffer spring 12 near the buffer plate 5 is connected to the connecting ring 13, and the end of the second buffer spring 12 away from the buffer plate 5 is connected to the connecting plate 14. A screw 15 connected to the fixing block 11 is provided on the connecting plate 14, and a screw 16 connected to the movable rod 3 is provided on the connecting ring 13, so that both the connecting ring 13 and the connecting plate 14 can be disassembled without affecting the disassembly and assembly of the second buffer spring 12.
[0029] The second implementation differs from the first implementation in that the protrusion 8 is located near the end of the buffer plate 5, which facilitates the installation and removal of the bolt 9.
[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0031] When in use, when a vehicle collides with the support column 2, it is first buffered by the contacting rubber pad 6. Then, the buffer plate 5 moves and the movable rod 3 connected to it moves on the support column 2, which can move the buffer plate 5 on the other side opposite to the buffer plate 5 that was collided with. This causes the buffer springs 7 on both sides to extend and retract to buffer the impact. At the same time, the buffer spring 12 inside the movable rod 3 also extends and retracts under the obstruction of the fixed block 11. This can effectively buffer the collision, avoid damage to the support column 2, and ensure the stability of the factory roof system.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0033] 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 roofing system with a lightweight main truss structure with an ultra-large span, characterized in that: It includes a roof truss (1), and the bottom of the roof truss (1) is uniformly provided with support columns (2); The lower outer side of each support column (2) is provided with an anti-collision mechanism; The anti-collision mechanism includes buffer plates (5) evenly distributed circumferentially on the outside of the support column (2). Movable rods (3) are evenly inserted through the support column (2) in different directions, and the heights of the movable rods (3) in different directions are different. Both ends of the movable rods (3) are provided with mounting rings (4). Both ends of the mounting rings (4) are connected with bolts (9), and the bolts (9) are connected to the protrusions (8) provided on the buffer plates (5). Buffer springs (7) are provided on opposite sides of the mounting rings (4) and are sleeved on the movable rods (3). Both buffer springs (7) are connected to the support column (2).
2. The roofing system with a lightweight main truss structure with an ultra-large span as described in claim 1, characterized in that: A rubber pad (6) is provided on the side of the buffer plate (5) away from the support column (2).
3. The roofing system with a lightweight main truss structure with an ultra-large span according to claim 1, characterized in that: The movable rod (3) has a hollow interior and a through groove (10) is provided at the bottom of the movable rod (3). The support column (2) is provided with a fixing block (11) that is in close contact with both the through groove (10) and the inner wall of the movable rod (3). Both ends of the fixing block (11) are provided with buffer components that are connected to the movable rod (3).
4. A roofing system with a lightweight main truss structure with an ultra-large span as described in claim 3, characterized in that: The buffer assembly includes a second buffer spring (12), a connecting ring (13), and a connecting plate (14) located inside the movable rod (3). The end of the second buffer spring (12) near the buffer plate (5) is connected to the connecting ring (13), and the end of the second buffer spring (12) away from the buffer plate (5) is connected to the connecting plate (14).
5. A roofing system with a lightweight main truss structure with an ultra-large span as described in claim 4, characterized in that: The connecting plate (14) is provided with a screw one (15) that is connected to the fixing block (11), and the connecting ring (13) is provided with a screw two (16) that is connected to the movable rod (3).
6. A roofing system with a lightweight main truss structure with an ultra-large span as described in claim 1, characterized in that: The protrusion (8) is located near the end of the buffer plate (5).
Citation Information
Patent Citations
Long-span multi-section combined truss roof structural system and construction method thereof
CN108240069A