Road flatcar safety guardrail protection device and road flatcar
By using the design of the F-type upper buckle and the U-type lower buckle, combined with the positioning device and the blocking plate, the problem of material spillage in road flatcar guardrail devices is solved, and the guardrail is installed stably and disassembled easily, thus improving driving safety.
Patent Information
- Application Number
- CN202422922306.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing road flatcar guardrails are prone to material spillage when carrying goods, posing a safety hazard, and the posts cannot be disassembled.
The design employs an F-type upper buckle and a U-type lower buckle in conjunction with the guard plate, along with a positioning device and a blocking plate. Secure installation is achieved through bolt connection, simplifying the installation and disassembly of the guardrail.
It effectively prevents materials from scattering, improves the stability and safety of the guardrail, simplifies the installation and dismantling process of the guardrail, enhances the connection between the posts and the vehicle body, and reduces driving safety hazards.
Smart Images

Figure CN223508258U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of road flatcars, and relates to a road flatcar safety guardrail protection device and a road flatcar. Background Technology
[0002] Flatcars are an important type of railway freight car, mainly used for transporting various goods, including steel, timber, sand and gravel, machinery, and containers. Flatcars typically consist of a chassis, floor (or wooden floor structure), braking system, coupler and buffer system, and bogies. Flatcars are widely used in the railway transport of various goods, playing an irreplaceable role, especially when transporting large, heavy, or specially shaped cargo.
[0003] To address the aforementioned technical problems, Chinese invention patent CN109911032A provides a quick-folding movable guardrail device for engineering vehicles. Its main features include guardrail posts, vertical tube assemblies, horizontal tube assemblies, a guardrail locking device, and guard plates. This device is welded to both sides of the rail flatcar via guardrail posts. The vertical and horizontal tube assemblies are hinged together by pins, enabling rapid folding and unfolding of the guardrail. The guardrail locking device uses U-bolts, springs, and cylindrical pins to lock the guardrail using spring force. While the arc-shaped opening of the positioning plate on the post can accommodate the vertical tube assembly, the positioning method is relatively simple. The guardrail device lacks effective latches or fixing devices at the top and bottom, and there are no corresponding guard plates. When applied to the aforementioned road flatcar, it offers no effective protection. During operation, the traction speed and other factors make it particularly prone to material spilling onto the track and onto the ballast shoulder or track center, creating a safety hazard. Furthermore, the posts of this device are welded to the rail flatcar and cannot be disassembled. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a road flatcar safety guardrail protection device and a road flatcar, so as to solve the technical problem of material spillage on the road flatcar.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] This utility model provides a road flatcar safety guardrail protection device, including a post. The top of the post is provided with an F-shaped upper buckle, and the bottom of the F-shaped upper buckle is provided with a U-shaped lower buckle. The lower buckle is fixedly connected to the post. The openings of the F-shaped upper buckle and the lower buckle are opposite each other. A guard plate is engaged between the F-shaped upper buckle and the lower buckle. A set of positioning devices is provided on each of the two sides of the post below the lower buckle. A first bolt is provided at the center of the bottom surface of the post. A blocking plate is provided on the first bolt. The positioning devices and the blocking plate cooperate to fix the position.
[0007] The specific F-type upper buckle includes an upper plate and an upper buckle, with the upper buckle fixedly connected to the lower part of the upper plate that extends beyond the column.
[0008] A more specific road flatcar safety guardrail protection device includes a post, the top of which is provided with an upper plate. The portion of the upper plate extending beyond the post is fixedly connected to an upper buckle. The upper plate and the upper buckle form an F-shaped upper buckle. Below the upper buckle is a U-shaped lower buckle, which is fixedly connected to the post. The openings of the upper and lower buckles are opposite each other. A protective plate is engaged between the upper and lower buckles. A set of positioning devices is provided on each of the two sides of the post below the lower buckle. A first bolt is provided at the center of the bottom surface of the post. A blocking plate is provided on the first bolt. The positioning devices and the blocking plate cooperate to fix the position.
[0009] In one embodiment, the column and the top plate are connected by a second bolt threaded together.
[0010] In one embodiment, a groove is provided at the center of the column, and a through hole is provided on the upper plate at the position corresponding to the groove. The groove and the through hole are threaded inside.
[0011] In one embodiment, the positioning device includes a horizontal plate and a triangular plate located above the horizontal plate.
[0012] In one embodiment, the two right-angled sides of the triangular plate are fixedly connected to the horizontal plate and the vertical column, respectively, and one side of the horizontal plate is fixedly connected to the vertical column.
[0013] In one embodiment, the area of the blocking plate is larger than the bottom area of the column.
[0014] In one embodiment, the lower latch is located above the body of the road flatcar.
[0015] This utility model also provides a road flatcar, including the above-mentioned road flatcar safety guardrail protection device, car body and fixing device, a plurality of the fixing devices are fixedly arranged around the outside of the car body, the guard plate is arranged above the outer edge of the car body, the column is arranged on the outside of the car body, and the column passes through the fixing device and is fixed to the car body.
[0016] In one embodiment, the fixing device includes a cubic annular frame and wing plates located on both sides of the cubic annular frame.
[0017] In one embodiment, the column passes through the interior of the cubic annular frame, and the positioning device and the blocking plate are respectively disposed above and below the cubic annular frame.
[0018] In one embodiment, the wing plate is a right-angled triangle, with one right-angled side fixedly connected to the vehicle body and the other right-angled side fixedly connected to a cubic annular frame.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] This utility model provides a safety guardrail protection device for road flatcars. Through the cooperation of an F-shaped upper buckle and a U-shaped lower buckle, and their engagement with the guardrail plate, a protective space is formed, effectively preventing material spillage. A positioning device and a blocking plate work together to fix the position of the protection device, improving the stability and safety of the guardrail. The positioning device ensures the stable installation of the entire protection device on the road flatcar body, while the blocking plate further strengthens the connection between the post and the road flatcar body. The above design uses an F-shaped upper buckle and a U-shaped lower buckle to directly engage the guardrail plate, making the installation and removal of the guardrail plate very simple, requiring no complex fixing devices or tools. A first bolt and a blocking plate are set at the center of the bottom surface of the post, cooperating with the positioning device to ensure the stable installation of the post, and this installation method is also relatively simple and quick. In addition, the presence of the guardrail plate effectively prevents objects from sliding off the side of the flatcar.
[0021] Furthermore, due to the design employing easily detachable snap-fit and bolt connections, when some components of the guardrail protection device are damaged or require repair, they can be easily replaced or repaired.
[0022] This utility model also provides a road flatcar, which is equipped with a road flatcar safety guardrail protection device. The uprights (i.e., part of the safety guardrail protection device) are firmly fixed to the car body by a fixing device set around the car body. The guard plate is set above the outer edge of the car body to form an integrated protection system, which prevents the possibility of materials falling from the car body.
[0023] Furthermore, the provided fixing device includes a cubic ring frame and wing plates, which simplifies the installation process of the guardrail and allows the guardrail to be fixed to the vehicle body more quickly. Attached Figure Description
[0024] Figure 1 This is a structural schematic diagram of the road flatcar safety guardrail protection device of this utility model;
[0025] Figure 2 This is a schematic diagram of the combined structure of the road flatcar safety guardrail protection device of this utility model;
[0026] Figure 3 This is a combined installation diagram of the road flatcar and the road flatcar safety guardrail protection device of this utility model;
[0027] Figure 4This is a front view of the vehicle body and fixing device of this utility model;
[0028] Figure 5 This is a top view of the vehicle body and fixing device of this utility model;
[0029] Figure 6 This is a top view of the road flatcar equipped with a road flatcar safety guardrail protection device according to the present invention.
[0030] Figure 7 This is a side view of the road flatcar equipped with a road flatcar safety guardrail protection device according to the present invention.
[0031] Wherein: 1-Upper plate; 2-Upper buckle; 3-Column; 4-Lower buckle; 5-Positioning device; 6-Blocking plate; 7-First bolt; 8-Second bolt; 9-Guard plate; 10-Fixing device; 11-Vehicle body; 12-Wing plate. Detailed Implementation
[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0034] All the fixed connection methods described below are welding.
[0035] The present invention will now be described in further detail with reference to the accompanying drawings:
[0036] See Figure 1 , 2 and Figure 3This utility model provides a road flatcar safety guardrail protection device, which is mainly composed of a column 3, an upper plate 1, an upper buckle 2, a lower buckle 4, a guard plate 9, a positioning device 5, a first bolt 7, and a blocking plate 6.
[0037] The above components are configured as follows:
[0038] The column 3 serves as a supporting structure, and an upper plate 1 is installed on its top. The portion of the upper plate 1 extending beyond the column 3 is fixedly connected to an upper buckle 2, which together with the upper plate 1 forms an F-shaped upper buckle.
[0039] On the column 3, below the upper buckle 2, there is a U-shaped lower buckle 4, which is fixedly connected to the column 3.
[0040] The openings of the upper buckle 2 and the lower buckle 4 are opposite each other, and the guard plate 9 is engaged between them to form a protective structure.
[0041] On both sides of the column 3 below the lower buckle 4, there is a set of positioning devices 5.
[0042] The first bolt 7 is located at the center of the bottom surface of the column 3. A blocking plate 6 is installed on the bolt. The positioning device 5 and the blocking plate 6 cooperate with each other to ensure that the device is stably fixed.
[0043] Among the aforementioned components, the guardrail 9 is securely installed on the upright 3, which is mounted on the body 11 of the road flatcar, via upper clips 2 and lower clips 4. The multiple guardrails 9 surrounding the vehicle effectively prevent materials from falling off the road flatcar, ensuring driving safety. This device uses clips and bolts for fixing, allowing for easy disassembly and reinstallation of components such as the guardrail 9 and upright 3. This design facilitates quick disassembly of the guardrail protection device when needed for vehicle maintenance or material loading and unloading operations, improving work efficiency.
[0044] In the aforementioned road flatcar safety guardrail protection device, the connection between the upright post 3 and the upper plate 1 adopts a threaded connection method using a second bolt 8. Specifically, the center of the upright post 3 is designed with a threaded hole that matches the second bolt 8, and the upper plate 1 is also provided with a corresponding through hole so that the second bolt 8 can pass through and be screwed into the threaded hole of the upright post 3, thereby achieving a stable connection between the two. The design of the groove and the through hole ensures that the upright post 3 and the upper plate 1 can be accurately aligned during connection, avoiding problems such as loose or unsecured connection due to positional deviation, and improving the positioning accuracy and stability of the entire device.
[0045] The threaded connection of the second bolt 8 makes the connection between the post 3 and the upper plate 1 tighter and more stable, preventing loosening and thus improving the stability and safety of the entire guardrail protection device. When it is necessary to disassemble the upper plate 1, it can be easily done by simply unscrewing the second bolt 8, without any other complicated operations, which facilitates the maintenance and upkeep of the equipment.
[0046] The positioning device 5 mainly consists of two parts: a horizontal plate and a triangular plate. The triangular plate has two right-angled sides, one of which is fixedly connected to the horizontal plate to form a stable support structure. The other right-angled side is fixedly connected to the column 3, thus firmly connecting the horizontal plate and the column 3. One side of the horizontal plate is also directly fixedly connected to the column 3, further enhancing the stability of the positioning device 5.
[0047] The area of the blocking plate 6 is larger than the bottom area of the column 3, and the blocking plate 6 can more fully cover the bottom surface of the column 3. The positioning device 5 and the blocking plate 6 work together to fix the position.
[0048] In actual use, the lower buckle 4 is located above the body 11 of the road flatcar.
[0049] This utility model also provides a road flatcar including the above-mentioned safety guardrail protection device, car body 11 and fixing device 10.
[0050] like Figure 3 , Figure 6 and Figure 7 As shown, several fixing devices 10 are fixed to the outside of the vehicle body 11 in a surrounding manner, and several protective plates 9 are set above the outer edge of the vehicle body 11. The column 3 is located on the outside of the vehicle body 11 and penetrates the fixing devices 10 to achieve a stable connection with the vehicle body 11.
[0051] like Figure 4 and Figure 5 As shown, the fixing device 10 is specifically composed of a cubic annular frame and its two side wing plates 12. The column 3 penetrates the interior of the cubic annular frame, while the positioning device 5 and the blocking plate 6 are respectively arranged on the upper and lower sides of the cubic annular frame.
[0052] The wing plate 12 is a right triangle. One right-angled side of the wing plate 12 is fixedly connected to the vehicle body 11, and the other right-angled side is fixedly connected to the cubic ring frame. One side of the cubic ring frame is fixedly connected to the vehicle body 11.
[0053] The aforementioned fixing device 10, positioning device 5, and blocking plate 6 ensure that the safety guardrail protection device can be stably installed on the vehicle body 11. The combination of the cubic ring frame and the wing plate 12 effectively enhances the overall stability of the road flatcar.
[0054] Example
[0055] The road flatcar safety guardrail protection device mainly consists of components such as column 3, upper plate 1, upper buckle 2, lower buckle 4, guard plate 9, positioning device 5, first bolt 7, and blocking plate 6.
[0056] The column 3 serves as a supporting structure, with the top plate 1 connected to it. The portion of the upper plate 1 extending beyond the column 3 is fixedly connected to the upper clip 2, forming an F-shaped clip. This clip is then connected to the threaded hole of the column 3 via a second bolt 8. The upper clip 2 and lower clip 4 have opposite openings, engaging the guard plate 9 to form a protective structure. The lower clip 4 is fixedly connected to the column 3, located below the upper clip 2. The guard plate 9 is engaged with the column 3 via the upper clip 2 and lower clip 4, and is positioned around the vehicle body 11 to prevent materials from falling.
[0057] The positioning device 5 is located on both sides of the column 3 below the lower buckle 4, and consists of a horizontal plate and a triangular plate, which are fixedly connected to the column 3. The first bolt 7 is located at the center of the bottom surface of the column 3, and cooperates with the blocking plate 6 to ensure the stable fixation of the device. The blocking plate 6 covers the bottom surface of the column 3 and cooperates with the positioning device 5 to fix its position.
[0058] The road flatcar equipped with a safety guardrail protection device mainly consists of a car body 11, fixing devices 10, uprights 3, and guardrails 9. The car body 11 serves as the basic structure of the road flatcar. Several fixing devices 10 are fixed around the outside of the car body 11, consisting of a cubic annular frame and two side wing plates 12. The wing plates 12 are right-angled triangles, fixedly connected to the car body 11 and the cubic annular frame. One side of the cubic annular frame is also fixedly connected to the car body 11. The uprights 3 pass through the cubic annular frame of the fixing devices 10, achieving a stable connection with the car body 11. The guardrails 9 are located above the outer edge of the car body 11 and are securely installed through the uprights 3 and the snap-fit structure of the safety guardrail protection device, ensuring the stability and safety of the road flatcar safety guardrail protection device.
[0059] The aforementioned road flatcar safety guardrail protection device simplifies the tooling process, employing a modular design with only two main components—the upright post 3 and the fixing bolts—for securing the device. Furthermore, the device can be installed as needed and disassembled as required by the flatcar's usage, making it convenient to use. It also requires fewer parts, is easy to assemble, and its quadrilateral structure provides greater stability.
[0060] The road flatcar equipped with the safety guardrail protection device was successfully applied on site and achieved the expected results. After on-site monitoring and testing during the construction window, no material was lost during transportation operations after the new device was adopted, and the material loss rate was reduced to 0, thus achieving the target.
[0061] In summary, installing safety guardrails effectively constrains the boundaries of the loaded goods from exceeding the dimensions of the flatbed truck, thus completely preventing material leakage. The guardrails on the flatbed truck provide effective protection, facilitate loading and unloading, and improve the situation of materials encroaching on the tracks and scattering onto ballast shoulders or the center of the track, reducing potential safety hazards. This optimizes the safety factors that exist in the use of road flatbed trucks.
[0062] The above content is only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed in this utility model shall fall within the scope of protection of the claims of this utility model.
Claims
1. A safety guardrail protection device for road flatcars, characterized in that, The column (3) includes an F-shaped upper buckle at the top and a U-shaped lower buckle (4) below the F-shaped upper buckle. The lower buckle (4) is fixedly connected to the column (3). The openings of the F-shaped upper buckle and the lower buckle (4) are opposite each other. A guard plate (9) is engaged between the F-shaped upper buckle and the lower buckle (4). A set of positioning devices (5) is provided on each side of the column (3) below the lower buckle (4). A first bolt (7) is provided at the center of the bottom surface of the column (3). A blocking plate (6) is provided on the first bolt (7). The positioning device (5) and the blocking plate (6) cooperate to fix the position.
2. The road flatcar safety guardrail protection device according to claim 1, characterized in that, The F-type upper buckle includes an upper plate (1) and an upper buckle (2), and the upper buckle (2) is fixedly connected to the lower part of the upper plate (1) that extends beyond the column (3).
3. The road flatcar safety guardrail protection device according to claim 1, characterized in that, The column (3) and the upper plate (1) are connected by a second bolt (8) threaded connection.
4. The road flatcar safety guardrail protection device according to claim 1, characterized in that, The positioning device (5) includes a horizontal plate and a triangular plate located above the horizontal plate.
5. The road flatcar safety guardrail protection device according to claim 4, characterized in that, The two right-angled sides of the triangular plate are fixedly connected to the horizontal plate and the column (3) respectively, and one side of the horizontal plate is fixedly connected to the column (3).
6. The road flatcar safety guardrail protection device according to claim 1, characterized in that, The area of the blocking plate (6) is greater than the bottom area of the column (3).
7. The road flatcar safety guardrail protection device according to claim 1, characterized in that, The lower buckle (4) is located above the body (11) of the road flatcar.
8. A road flatcar, characterized in that, Includes a road flatcar safety guardrail protection device as described in any one of claims 1 to 7, a vehicle body (11), and a fixing device (10), wherein a plurality of the fixing devices (10) are fixedly arranged around the outside of the vehicle body (11), the guard plate (9) is arranged above the outer edge of the vehicle body (11), the column (3) is arranged on the outside of the vehicle body (11), and the column (3) passes through the fixing device (10) and is fixed to the vehicle body (11).
9. The road flatcar according to claim 8, characterized in that, The fixing device (10) includes a cubic ring frame and wing plates (12) located on both sides of the cubic ring frame.
10. The road flatcar according to claim 8, characterized in that, The column (3) passes through the interior of the cubic ring frame, and the positioning device (5) and the blocking plate (6) are respectively set above and below the cubic ring frame.
Citation Information
Patent Citations
Rapid folding movable rail device for engineering vehicle
CN109911032A