A convenient synchronous unloading device for guardrail panels

Abstract

This utility model discloses a convenient synchronous unloading device for guardrail panels, belonging to the field of road traffic safety facility construction technology. It aims to solve the problems of high labor intensity, low efficiency, easy slippage, and inability to operate continuously when unloading guardrail panels manually. The device includes a fixing device, an enlarged contact surface structure, a pulley device, a positioning device, and an unloading rod. The fixing device detachably connects the device to the unloading vehicle for synchronous movement; the enlarged contact surface structure increases the contact area of ​​the guardrail panel to prevent slippage; the pulley device assists in sliding synchronously with the unloading vehicle; the positioning device controls the movement distance of the unloading vehicle to match the length of the guardrail panel; and the unloading rod forms an inclined transition surface to guide the guardrail panel downwards. This utility model enables continuous "walking and unloading" operation of guardrail panels, reducing labor intensity, improving unloading efficiency and safety, and is suitable for various guardrail construction scenarios such as highways and urban roads, possessing strong practicality and promotional value.

Description

Technical Field

[0001] This invention belongs to the field of road traffic safety facility construction technology, specifically relating to a guardrail unloading device, which is particularly suitable for convenient and synchronous unloading operations during the installation of corrugated beam guardrails on highways or urban roads. It aims to solve the problems of low unloading efficiency, high manual labor intensity, and easy slippage of traditional guardrails, thereby improving the safety and continuity of guardrail unloading. Background Technology

[0002] In the field of road traffic safety facility construction, corrugated beam guardrails are widely used in highway and urban road construction as a key facility to ensure road traffic safety. Guardrails are usually transported in bundles of 10. The traditional unloading process is as follows: the bundles of guardrails are transferred from the transport vehicle to the vicinity of the construction area by forklift, and then manually unpacked and placed piece by piece to the designated location.

[0003] However, traditional unloading methods have significant drawbacks: on the one hand, manual handling in sections is labor-intensive, as each guardrail panel is up to 4 meters long and heavy, requiring multiple people to work together to complete the handling. This is not only inefficient but also prone to slippage due to improper operation, posing a safety risk of injuring construction workers. On the other hand, the unloading process is completely disconnected from the movement of the unloading vehicle, making continuous operation of moving and unloading impossible. Frequent stopping and repositioning are required, which does not match the requirements for smooth alignment during guardrail installation and severely restricts the construction progress.

[0004] Furthermore, traditional unloading methods lack dedicated support structures, and the guardrail panels are prone to slipping off during unloading due to the small contact area, further increasing operational safety hazards and rework rates. Therefore, there is an urgent need for a device that can achieve convenient and simultaneous unloading of guardrail panels to solve the problems of low efficiency, high labor intensity, and poor safety associated with traditional unloading methods. Utility Model Content

[0005] In view of this, the present invention aims to overcome the defects of existing guardrail unloading technology. Addressing the problems of high manual labor intensity, low efficiency, and the risk of slippage during traditional guardrail unloading processes, as well as the inability to achieve continuous operation with synchronized movement of the unloading vehicle, this invention provides a convenient synchronous unloading device for guardrails. By designing a fixing device, expanding the contact surface structure, incorporating pulleys and positioning devices, a rigid connection and synchronous movement between the device and the unloading vehicle are achieved. This increases the contact stability of the guardrail during unloading to prevent slippage, precisely matches the positioning and movement requirements of the 4-meter length of the guardrail, ultimately reducing manual labor intensity, improving unloading efficiency, enhancing operational safety, and enabling continuous unloading of the guardrail while it moves. This meets the requirements for convenience, continuity, and safety in the construction of road corrugated beam guardrails.

[0006] To achieve the above objectives, this utility model provides a convenient synchronous unloading device for guardrail panels, including a fixing device, an enlarged contact surface structure, a pulley device, and a positioning device. The fixing device is used to detachably connect the device to the unloading vehicle, so that the device moves synchronously with the unloading vehicle; The enlarged contact surface structure is provided in the guardrail plate bearing area of ​​the device to increase the contact area when the guardrail plate is removed; the fixing device includes a horizontal fixing rod. It also includes a discharge rod, one end of which is fixedly connected to the transverse fixing rod, and the discharge rod is inclinedly arranged between the enlarged contact surface structure and the ground; The pulley device is installed at the bottom of the device, located at the other end of the unloading rod; it is used to make the device slide synchronously with the unloading vehicle when dragged by the unloading vehicle. The positioning device is used to match the distance the unloading vehicle moves each time with the length of the guardrail, so as to achieve orderly unloading of the guardrail.

[0007] Furthermore, the fixing device also includes a locking component, and the transverse fixing rod is arranged transversely along the side of the unloading vehicle, and is detachably connected to the side of the unloading vehicle through the locking component.

[0008] Furthermore, the locking element is a bolt assembly, a quick-release buckle, or a pin structure.

[0009] Furthermore, the expanded contact surface structure is an arc-shaped support plate or a flat support plate with an anti-slip pad layer, wherein the anti-slip pad layer is made of rubber or silicone.

[0010] Furthermore, the pulley device includes at least two rollers, which are symmetrically installed on both sides of the bottom of the device, and the axle direction of the rollers is parallel to the moving direction of the unloading vehicle.

[0011] Furthermore, the positioning device includes a distance sensor, a controller, and a prompting component. The distance sensor is used to detect the moving distance of the unloading vehicle. When the moving distance reaches the length of the guardrail, the controller triggers the prompting component to issue a positioning signal.

[0012] Furthermore, the prompting component is an audible and visual alarm, an indicator light in the driver's cab, or a module linked to the braking system of the unloading vehicle.

[0013] Furthermore, the angle of inclination of the unloading rod to the ground is 30° to 60°.

[0014] The present invention, by adopting the above technical solution, has at least the following beneficial effects: In this invention, the device is detachably connected to the unloading vehicle by a fixing device, and the device slides synchronously with the unloading vehicle by a bottom pulley device, realizing the continuous operation mode of "unloading while moving" between the device and the unloading vehicle, solving the efficiency bottleneck of frequent stops required for traditional unloading, and greatly improving the continuity of unloading.

[0015] In this invention, the structure that expands the contact surface adopts an arc-shaped support plate or a flat support plate with rubber and silicone anti-slip pads, which increases the contact area and friction when the guardrail is unloaded, effectively avoiding the problem of the guardrail slipping due to the small contact surface in traditional unloading, and reducing the safety risks of operation.

[0016] In this invention, the positioning device, through the linkage of a distance sensor, a controller, and a prompting component, ensures that the distance the unloading vehicle moves each time is matched with the length of the guardrail. Combined with the unloading bar set at an inclination (30°~60°), a smooth downward sliding path is formed, allowing the guardrail to be unloaded orderly onto the ground along the device, reducing the intensity of manual handling and improving the standardization and efficiency of unloading.

[0017] In this utility model, the horizontal fixing rod of the fixing device cooperates with the bolt assembly, quick buckle and other locking parts to realize the quick assembly and disassembly of the device with different unloading vehicles, adapting to diverse construction scenarios. It can be put into use without modifying the unloading vehicle, thus enhancing the practicality and scalability of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the convenient synchronous unloading device of this utility model.

[0020] In the diagram: 1. Horizontal fixing rod; 2. Unloading rod; 3. Enlarged contact surface structure; 4. Pulley device; 5. Guardrail plate; 6. Stop bar. Detailed Implementation

[0021] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0022] This embodiment provides a convenient synchronous unloading device for guardrail panel 5, including a fixing device, an enlarged contact surface structure 3, a pulley device 4, and a positioning device; The fixing device is used to detachably connect the device to the unloading vehicle, so that the device moves synchronously with the unloading vehicle; The enlarged contact surface structure 3 is provided in the bearing area of ​​the guardrail plate 5 of the device to increase the contact area when the guardrail plate 5 is removed; the fixing device includes a horizontal fixing rod 1; a stop bar 6 is provided at one end of the horizontal fixing rod 1; the stop bar 6 is provided to prevent the guardrail plate 5 from sliding out from one end of the horizontal fixing rod 1. It also includes a discharge rod 2, one end of which is fixedly connected to the transverse fixing rod 1, and the discharge rod 2 is inclinedly arranged between the enlarged contact surface structure 3 and the ground; The pulley device 4 is installed at the bottom of the device and is located at the other end of the unloading rod 2; it is used to make the device slide synchronously with the unloading vehicle when dragged by the unloading vehicle. The positioning device is used to match the distance the unloading vehicle moves each time with the length of the guardrail 5, so as to achieve orderly unloading of the guardrail 5.

[0023] As one implementation, the fixing device in this embodiment further includes a locking member. The transverse fixing rod 1 is arranged transversely along the side of the unloading vehicle and is detachably connected to the side of the unloading vehicle through the locking member.

[0024] As one implementation method, the locking component in this embodiment is a bolt assembly, a quick-release buckle, or a pin structure.

[0025] In one embodiment, the enlarged contact surface structure 3 described in this embodiment is an arc-shaped tray or a flat tray with an anti-slip pad layer, wherein the anti-slip pad layer is made of rubber or silicone.

[0026] In one embodiment, the pulley device 4 in this embodiment includes at least two rollers, which are symmetrically installed on both sides of the bottom of the device, and the axle direction of the rollers is parallel to the moving direction of the unloading vehicle.

[0027] In one embodiment, the positioning device includes a distance sensor, a controller, and a prompting component. The distance sensor is used to detect the moving distance of the unloading vehicle. When the moving distance reaches the length of the guardrail 5, the controller triggers the prompting component to issue a positioning signal.

[0028] As one implementation method, the prompting component in this embodiment is an audible and visual alarm, an indicator light in the driver's cab, or a module linked to the braking system of the unloading vehicle.

[0029] In one embodiment, the tilt angle between the unloading rod 2 and the ground is 30° to 60°.

[0030] The convenient synchronous unloading device for guardrail panel 5 of this utility model achieves a closed-loop operation of "synchronous movement, stable load-bearing, and orderly unloading" through the coordinated operation of multiple components. The specific working principle is as follows: Device fixing and synchronization preparation: The horizontal fixing rod 1 of the fixing device is arranged horizontally along the side of the unloading vehicle. The device is detachably connected to the unloading vehicle using bolt assemblies, quick clips or pins to ensure that the device and the unloading vehicle are rigidly synchronized. The rollers of the bottom pulley device 4 (the wheel axle direction is parallel to the movement direction of the unloading vehicle) contact the ground to provide support for the device to slide synchronously with the unloading vehicle.

[0031] Positioning calibration: The distance sensor of the positioning device detects the moving distance of the unloading vehicle in real time. The controller presets the length parameter of the guardrail 5 (e.g., 4 meters). When the unloading vehicle moves to the preset distance, the controller triggers the sound and light alarm, the indicator light in the driver's cab, or the braking linkage module to issue a prompt signal, ensuring that the moving distance of the unloading vehicle is accurately matched with the length of the guardrail 5 each time.

[0032] Unloading and sliding of guardrail panel 5: During unloading, the personnel on the vehicle pass one end of guardrail panel 5 to the personnel on the ground and place it on the ground, while the other end is placed on the enlarged contact surface structure 3 (arc-shaped support plate or flat support plate with rubber / silicone anti-slip pad layer). The increased contact area and friction prevent the guardrail panel 5 from slipping. As the unloading vehicle continues to move, the guardrail panel 5 naturally slides down to the ground along the transition support surface formed by the inclined (30°~60°) unloading bar 2, completing the unloading of a single guardrail panel 5.

[0033] Continuous operation cycle: Repeat the above positioning-placement-sliding process to achieve continuous and orderly unloading of guardrail 5 as it moves with the unloading vehicle, without the need for frequent stops or manual handling.

[0034] This device is applicable to the construction of road traffic safety facilities, especially for the installation of corrugated beam guardrails on highways and urban roads, specifically including: Highway guardrail construction: On the shoulder or construction section of the highway, 4-meter standard length corrugated beam guardrail panels need to be continuously laid along the road alignment. This device can move synchronously with the unloading truck along the road to match the alignment requirements of the guardrail installation and avoid the long-term occupation of the road by traditional unloading.

[0035] Urban road guardrail renovation: Urban road construction space is limited, and traditional unloading methods can easily cause traffic congestion. This device's "walking and unloading" continuous operation mode can shorten the unloading time of a single guardrail panel and reduce the interference of construction on traffic.

[0036] Installation of guardrails in complex terrain: In construction areas with slight slopes or uneven road surfaces (such as mountain roads), the rollers at the bottom of the device can adapt to ground conditions. Combined with anti-slip pads and inclined unloading bars, it ensures that the guardrail can still slide down stably in complex terrain, ensuring operational safety.

[0037] Batch transport and unloading of guardrail panels: For the transportation of guardrail panels bundled in groups of 10, the device can work with a forklift to unload the bundled guardrail panels. The moving distance is controlled by the positioning device, so that the guardrail panels can be placed in an orderly manner according to the installation spacing, reducing secondary handling.

[0038] The convenient synchronous unloading device for guardrail panels provided in this embodiment solves the problems of high manual labor intensity, low efficiency, easy slippage, and inability to operate continuously in traditional guardrail panel unloading through the coordinated design of a fixing device, an enlarged contact surface structure, a pulley device, a positioning device, and an unloading rod. Its core advantages are: The device adopts a detachable fixing and synchronous sliding structure, which enables the device and the unloading vehicle to "unload while moving", greatly improving the continuity of unloading. By combining an expanded contact surface with an anti-slip design, the risk of guardrails slipping off is eliminated from a physical structural perspective, thus enhancing operational safety. The positioning device precisely controls the movement distance and, in conjunction with the tilting unloading rod, guides the sliding motion, reducing manual intervention and improving the standardization of unloading. The device is compatible with various unloading vehicle models and construction scenarios, and can be put into use without modifying existing equipment, making it highly practical and easy to promote.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A convenient synchronous unloading device for guardrail panels, characterized in that, Includes fixing devices, enlarged contact surface structures, pulley systems, and positioning devices; The fixing device is used to detachably connect the device to the unloading vehicle, so that the device moves synchronously with the unloading vehicle; The enlarged contact surface structure is provided in the bearing area of ​​the guardrail panel of the device to increase the contact area when the guardrail panel is removed; the fixing device includes a horizontal fixing rod; one end of the horizontal fixing rod is provided with a stop bar. It also includes a discharge rod, one end of which is fixedly connected to the transverse fixing rod, and the discharge rod is inclinedly arranged between the enlarged contact surface structure and the ground; The pulley device is installed at the bottom of the device, located at the other end of the unloading rod; it is used to make the device slide synchronously with the unloading vehicle when dragged by the unloading vehicle. The positioning device is used to match the distance the unloading vehicle moves each time with the length of the guardrail, so as to achieve orderly unloading of the guardrail.

2. The apparatus according to claim 1, characterized in that, The fixing device also includes a locking component. The transverse fixing rod is arranged transversely along the side of the unloading vehicle and is detachably connected to the side of the unloading vehicle through the locking component.

3. The apparatus according to claim 2, characterized in that, The locking component is a bolt assembly, a quick-release buckle, or a pin structure.

4. The apparatus according to claim 1, characterized in that, The enlarged contact surface structure is an arc-shaped support plate or a flat support plate with an anti-slip pad layer, wherein the anti-slip pad layer is made of rubber or silicone.

5. The apparatus according to claim 1, characterized in that, The pulley device includes at least two rollers, which are symmetrically installed on both sides of the bottom of the device, and the axle direction of the rollers is parallel to the moving direction of the unloading vehicle.

6. The apparatus according to claim 1, characterized in that, The positioning device includes a distance sensor, a controller, and a prompting component. The distance sensor is used to detect the moving distance of the unloading vehicle. When the moving distance reaches the length of the guardrail, the controller triggers the prompting component to issue a positioning signal.

7. The apparatus according to claim 6, characterized in that, The prompting component is an audible and visual alarm, an indicator light in the driver's cab, or a module linked to the braking system of the unloading vehicle.

8. The apparatus according to claim 1, characterized in that, The angle of inclination of the unloading rod to the ground is 30° to 60°.

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