Buffer protection structure for operating room roof of automobile crane
By combining a base frame, bulletproof glass, and buffer components, the problem of poor buffering effect in traditional protective structures is solved, achieving effective energy absorption and stability for continuous operation, thus improving the safety of the control room.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING TENGLI LARGE LIFTING CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-06-05
Smart Images

Figure CN224325063U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of protective structure technology, and in particular relates to a buffer protective structure for the roof of the operator's cab of a truck crane. Background Technology
[0002] Truck cranes are commonly used in engineering construction, cargo loading and unloading, and other scenarios. The working environment is complex, and objects may fall from above, such as building materials or tools. In some unexpected situations, such as the crane's own parts malfunctioning and falling off, they may hit the ceiling of the operator's cab, threatening the lives of the workers inside.
[0003] Traditional protective structures for the control room ceiling, such as simple metal plates or guardrails, can provide some protection, but they are not effective at absorbing energy when subjected to falling objects with large impact forces. This can easily lead to deformation or even damage to the ceiling, thereby endangering the safety of the operators. Summary of the Invention
[0004] In response to the above situation, in order to overcome the shortcomings of existing technologies in effectively absorbing energy.
[0005] The technical solution adopted by this utility model is as follows: A buffer protection structure for the roof of a truck crane operator's cab includes a base frame and bulletproof glass. The base frame is set at the corner of the bulletproof glass and is L-shaped. A fixing component is set on the outside of the base frame and is used to fix it to the roof fixing frame of the operator's cab. The structure also includes buffer components set at the upper and lower ends of the base frame to buffer the bulletproof glass.
[0006] Furthermore, the fixing assembly includes a fixing ring, an adjusting rod, and a clamping plate. The fixing ring is C-shaped and is symmetrically fixed to the outside of the base frame along the central axis of the base frame. A fixing groove is provided on the inner side of the fixing ring, and a fixing hole communicating with the fixing groove is provided at the lower end of the fixing ring. The adjusting rod is threaded to the inside of the fixing hole, and the clamping plate is rotatably disposed on the upper end of the adjusting rod.
[0007] Furthermore, the buffer assembly includes a first fixing plate, a second fixing plate, a positioning post, a pressure-bearing rod, and a pressure-bearing plate. The first fixing plate is fixed to one side of the base frame, and the second fixing plate is fixed to the other side of the base frame. The first fixing plate has several positioning holes spaced apart. The positioning post is inserted into the positioning hole. The positioning post is threaded with a first fixing bolt and a second fixing bolt. The positioning post has a hydraulic cavity inside, and a sealing block is slidably disposed in the hydraulic cavity. The pressure-bearing rod is fixed to the end of the sealing block and passes through the end of the positioning post. The pressure-bearing plate is fixed to the other end of the pressure-bearing rod.
[0008] Furthermore, an L-shaped buffer pad is provided between the base frame and the bulletproof glass.
[0009] Furthermore, the clamping plate is adapted to the fixing groove, and the clamping plate is arranged in an arc shape.
[0010] Furthermore, the upper end of the first fixing bolt is in close contact with the lower end of the fixing plate, and the lower end of the second fixing bolt is in close contact with the upper end of the first fixing plate.
[0011] The beneficial effects of this utility model after adopting the above structure are as follows:
[0012] (1) The stability of the fixed connection between the base frame and the fixed frame of the operating room ceiling is ensured by the mutual clamping action of the fixing ring and the clamping plate in the fixing assembly.
[0013] (2) Through the linkage of fixed plate one, fixed plate two, positioning column, pressure rod and pressure plate in the buffer assembly, the combination of bulletproof glass, multiple base frames and positioning column, pressure rod and pressure plate is adopted. The bulletproof glass absorbs the initial energy. After the collision, the positioning column, pressure rod and pressure plate work together to restore the initial state and support continuous operation. The damping coefficient provided by the positioning column, pressure rod and pressure plate avoids secondary rebound. Attached Figure Description
[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is an exploded view of the overall structure of this utility model;
[0017] Figure 3 This is a half-sectional schematic diagram of the overall structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of this utility model;
[0019] Figure 5 for Figure 3 Enlarged view of part A.
[0020] In the attached diagram: 1. Base frame, 2. Bulletproof glass, 3. Fixing ring, 4. Adjusting rod, 5. Pressure plate, 6. Fixing plate one, 7. Fixing plate two, 8. Positioning column, 9. Pressure-bearing rod, 10. Pressure-bearing plate, 11. Fixing bolt one, 12. Fixing bolt two, 13. Sealing block, 14. L-shaped buffer pad. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0022] 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.
[0023] like Figure 1-2 As shown, a buffer protection structure for the roof of a truck crane operator's cab is disclosed. This structure mainly consists of a base frame 1, bulletproof glass 2, and fixing and buffering components. The base frame 1 is made of high-strength steel and has an L-shaped design, precisely installed at the four corners of the bulletproof glass 2, providing a stable support frame for the entire protection system. Special fixing components are also installed on the outside of the base frame 1, which are reliably connected to the fixing frame of the operator's cab roof via mechanical connection. Furthermore, buffering components are installed at both the upper and lower ends of the base frame 1. These buffering components are specially designed to effectively absorb energy upon impact, providing multi-layered buffer protection for the bulletproof glass 2.
[0024] like Figure 2 As shown, the fixing assembly comprises three main components: a fixing ring 3, an adjusting rod 4, and a clamping plate 5. The fixing ring 3 is forged from high-quality steel and has a C-shaped design, ensuring both strength and ease of installation. The fixing ring 3 is symmetrically welded and fixed to the outer surface of the base frame 1 along its central axis. A precise fixing groove is machined on the inner side of the fixing ring 3, and a fixing hole communicating with the fixing groove is provided at the lower end of the fixing ring 3. The adjusting rod 4 is installed in the fixing hole using a threaded connection and can rotate freely. The clamping plate 5 is rotatably mounted on the upper end of the adjusting rod 4 via a bearing structure, allowing the clamping plate 5 to be precisely adjusted in position as the adjusting rod 4 rotates.
[0025] Of particular note is the L-shaped buffer pad 14 installed between the base frame 1 and the bulletproof glass 2. This buffer pad is made of highly elastic rubber material, which can effectively absorb vibration energy. The arc-shaped design of the clamping plate 5 allows it to perfectly match the fixing groove. The displacement of the clamping plate 5 can be precisely controlled by rotating the adjusting rod 4, thereby forming a reliable clamping force between the clamping plate 5 and the inner side of the fixing ring 3, ensuring that the connection between the entire base frame 1 and the fixed frame of the operating room ceiling is both firm and stable.
[0026] like Figure 2-3 As shown in Figure 4-5, the buffer assembly consists of a fixed plate 6, a fixed plate 7, a positioning post 8, a pressure rod 9, and a pressure plate 10 working together. Fixed plates 6 and 7 are welded and fixed to both sides of the base frame 1, forming a stable support structure. Fixed plate 6 has multiple precisely machined positioning holes into which the positioning post 8 can be inserted for positioning. Adjustable fixing bolts 11 and 12 are installed on the positioning post 8, allowing for precise fixing. The positioning post 8 has an internal hydraulic chamber filled with specially formulated hydraulic oil and a sliding sealing block 13. One end of the pressure rod 9 is fixed to the sealing block 13, and the other end passes through the positioning post 8 and connects to the pressure plate 10.
[0027] In practical operation, the upper end of fixing bolt 11 is in close contact with the lower surface of fixing plate 6, while the lower end of fixing bolt 12 is in close contact with the upper surface of fixing plate 6. This double fixing method ensures the stability of the positioning column 8. Operators can precisely control the clamping force between fixing plate 7 and pressure plate 10 by adjusting the positions of fixing bolts 11 and 12 on the positioning column 8. This allows for automatic adjustment of the damping coefficient according to different collision speeds, effectively preventing secondary rebound. When a collision occurs, the hydraulic oil in the hydraulic chamber and the sealing block 13 work together to absorb the impact energy through hydraulic damping. Afterward, the pressure rod 9 automatically returns to its initial position under the action of the hydraulic system, ensuring continuous and stable operation of the equipment and supporting continuous operation requirements.
[0028] 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. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A buffer protection structure for the roof of a truck crane operator's cab, characterized in that: The device includes a base frame (1) and bulletproof glass (2), wherein the base frame (1) is located at the corner of the bulletproof glass (2) and is L-shaped, and a fixing component is located on the outside of the base frame (1) for fixing to the ceiling of the operating room; it also includes a buffer component located at the upper and lower ends of the base frame (1) for buffering the bulletproof glass (2); The buffer assembly includes a first fixing plate (6), a second fixing plate (7), a positioning post (8), a pressure rod (9), and a pressure plate (10). The first fixing plate (6) is fixed to one side of the base frame (1), and the second fixing plate (7) is fixed to the other side of the base frame (1). The first fixing plate (6) has several positioning holes spaced apart. The positioning post (8) is inserted into the positioning hole. The positioning post (8) is threaded with a first fixing bolt (11) and a second fixing bolt (12). The positioning post (8) has a hydraulic cavity inside. A sealing block (13) is slidably provided in the hydraulic cavity. The pressure rod (9) is fixed to the end of the sealing block (13) and passes through the end of the positioning post (8). The pressure plate (10) is fixed to the other end of the pressure rod (9).
2. The buffer protection structure for the roof of a truck crane operator's cab according to claim 1, characterized in that: The fixing assembly includes a fixing ring (3), an adjusting rod (4), and a clamping plate (5). The fixing ring (3) is C-shaped and is symmetrically fixed to the outside of the base frame (1) along the central axis of the base frame (1). A fixing groove is provided on the inner side of the fixing ring (3). A fixing hole communicating with the fixing groove is provided at the lower end of the fixing ring (3). The adjusting rod (4) is threaded to the inner side of the fixing hole. The clamping plate (5) is rotatably disposed on the upper end of the adjusting rod (4).
3. A buffer protection structure for the roof of a truck crane operator's cab according to claim 2, characterized in that: An L-shaped buffer pad (14) is provided between the base frame (1) and the bulletproof glass (2).
4. A buffer protection structure for the roof of a truck crane operator's cab according to claim 3, characterized in that: The clamping plate (5) is matched with the fixing groove, and the clamping plate (5) is arranged in an arc shape.
5. A buffer protection structure for the roof of a truck crane operator's cab according to claim 4, characterized in that: The upper end of the first fixing bolt (11) is in close contact with the lower end of the first fixing plate (6), and the lower end of the second fixing bolt (12) is in close contact with the upper end of the first fixing plate (6).