A kind of protection retaining wall for roadbed widening construction
By installing protective and blocking devices on the retaining wall, the safety hazards of workers falling from heights and tools slipping during roadbed widening construction have been solved, and objects such as stones and gravel have been effectively intercepted, improving construction safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU SUIHUA EXPRESSWAY CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-24
AI Technical Summary
The existing protective measures for roadbed widening construction cannot be flexibly adjusted, posing safety hazards such as workers falling from heights and tools slipping, and cannot effectively prevent objects such as stones and gravel from falling, causing personal injury and equipment damage.
A protective retaining wall was designed, which includes a protective device and a barrier device. The protective device forms a temporary safety fence through a chute and a protective frame, while the barrier device intercepts falling objects with a net. This design addresses the safety protection of construction workers and tools, as well as the protection against stones and gravel.
It effectively reduces the risk of construction workers falling from heights and tools slipping, prevents objects such as stones and gravel from falling directly, ensures construction safety, reduces equipment damage, and improves construction convenience and efficiency.
Smart Images
Figure CN224549687U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traffic engineering technology, and in particular to a protective retaining wall for roadbed widening construction. Background Technology
[0002] Protective retaining walls used in roadbed widening construction are supporting structures installed during roadbed widening construction in highways or railways to prevent soil slippage and collapse at the junction of old and new roadbeds, or to protect the stability of the widened roadbed slopes. During roadbed widening construction, workers often need to work at heights, such as reinforcing walls or installing drainage facilities. The working environment is complex and highly dangerous, thus placing extremely high demands on construction safety protection measures. Currently, traditional roadbed widening construction protection methods mostly use fixed guardrails or temporary scaffolding. However, fixed guardrails are difficult to adjust flexibly according to changes in the construction area, easily creating blind spots and failing to effectively meet the safety protection needs of different construction stages. Temporary scaffolding is not only cumbersome and time-consuming to erect, but also has poor structural stability, failing to provide reliable protection when working at heights, posing significant safety hazards. Furthermore, existing protective measures often neglect protection against tool slippage; accidents involving falling tools that injure personnel below or damage construction equipment occur frequently during construction.
[0003] Regarding the above-mentioned and existing related technologies, the inventor believes that the following defects often exist: when construction workers are working on the wall, the lack of effective protective measures may lead to accidental falls that result in injuries or even endanger their lives, and tools may accidentally slip and injure people below or damage construction equipment; therefore, in order to address the above problems, a protective retaining wall for roadbed widening construction is proposed. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies, such as construction workers falling and getting injured or even endangering their lives due to the lack of effective protective measures when working on walls, and tools accidentally slipping and injuring people below or damaging construction equipment. Therefore, this utility model proposes a protective retaining wall for roadbed widening construction.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a protective retaining wall for roadbed widening construction, comprising a toe slab wall, a wall wall, and a buttress wall. The surface of the wall wall is provided with a protective device, the protective device comprising a groove, the groove being formed on the surface of the wall, a protective frame being slidably connected to the inner wall of the groove, three protective rods being fixedly connected to the inner wall of the protective frame, a limiting groove being formed on the inner wall of the groove, a limiting plate being fixedly connected to one side of the protective frame, the limiting plate being slidably connected to the inner wall of the limiting groove, a plurality of fixing grooves being formed on the surface of the wall, a fixing plate being fixedly connected to one side of the protective frame, a drive rod being threadedly inserted into the fixing plate, the threaded surface of the drive rod being slidably connected to the fixing groove, and a circular plate being fixedly connected to one end of the drive rod.
[0006] The aforementioned components achieve the following effects: by setting up protective devices, construction workers can be protected when working on the wall. Construction workers can quickly move the protective frame to the front of the work point according to the on-site work area. The three protective rods on the protective frame form a safety fence, forming a temporary protective barrier to prevent accidental falls of personnel or slippage of tools, reduce the risk of working at height, and avoid serious consequences such as accidental falls of construction workers that could result in injury or even death due to the lack of effective protective measures. At the same time, it also prevents the situation where tools accidentally slip and injure people below or damage construction equipment.
[0007] Preferably, the circular plate has a plurality of anti-slip grooves on its arc surface, and the plurality of anti-slip grooves are evenly distributed on the circular plate in a circumferential array.
[0008] The effect achieved by the above-mentioned components is that by setting anti-slip grooves, the friction between the worker's hand and the round plate is significantly increased, preventing the hand from slipping and thus reducing hand muscle fatigue.
[0009] Preferably, the bottom surface of the protective frame is rotatably connected with a plurality of ball bearings, and the arc surfaces of the plurality of ball bearings are slidably connected to the slide groove.
[0010] The effect achieved by the above components is that by setting ball bearings, the sliding friction between the protective frame and the slide groove is converted into rolling friction, which greatly reduces the resistance when the protective frame moves in the slide groove. Construction workers only need to apply a small pushing force to easily and quickly slide the protective frame to the required position.
[0011] Preferably, two support rods are fixedly connected to one side of the protective frame, and the front end of the support rods is arc-shaped.
[0012] The aforementioned components achieve the following effect: by setting up support rods, they provide suitable gripping points for construction workers, making it easier for operators to move the protective frame and significantly improving construction convenience and efficiency.
[0013] Preferably, the inner wall of the chute is provided with a plurality of drainage holes, which are evenly distributed in a linear array within the chute.
[0014] The above-mentioned components achieve the following effects: by setting drainage holes, the drainage holes can promptly drain the water accumulated in the chute during the rainy season construction environment, preventing long-term immersion of water from causing corrosion of the chute and protective frame metal parts and softening of the concrete structure, effectively extending the service life of the protective device and ensuring the long-term stable operation of the protective retaining wall.
[0015] Preferably, the surface of the toe plate wall is provided with a blocking device, the blocking device including two fixed rods, both of which are fixedly connected to the surface of the toe plate wall, and two U-shaped frames are slidably connected to the arc surfaces of the two fixed rods. A square frame is fixedly connected to the side of the two U-shaped frames that are close to each other, and a net is fixedly connected to the inner wall of the square frame.
[0016] The aforementioned components achieve the following effect: by setting up a blocking device, they can effectively intercept falling stones, gravel, and other objects from walls and buttresses. When stones or gravel fall from walls and buttresses due to weathering, construction vibrations, or other reasons, the fine mesh of the net can quickly catch them, preventing the stones from falling directly to the ground. Whether it is small gravel or large stones, they can be effectively blocked by the net, preventing them from rolling into construction passages or injuring people below, thus eliminating the safety hazard of falling objects from the source.
[0017] Preferably, the U-shaped frame has an internal thread through which a threaded rod passes, and the arc surface of the fixing rod has a through hole. The inner wall of the through hole of the fixing rod is threadedly connected to the threaded rod, and a rotating head is fixedly connected to one end of the threaded rod.
[0018] The aforementioned components achieve the following effect: when the net bag becomes damaged or deformed due to intercepting a large number of stones and gravel, construction workers only need to rotate the rotating head at one end of the threaded rod to disengage the threaded rod from the hole of the fixed rod, thereby releasing the fixed connection between the U-shaped frame and the fixed rod. This facilitates the repair and replacement of the net bag and reduces the impact of equipment maintenance on the construction progress.
[0019] The beneficial effects of this utility model are: 1. In this utility model, by setting up a protective device, the construction workers can be protected when working on the wall. The construction workers can quickly move the protective frame to the front of the work point according to the work area. The three protective rods on the protective frame form a safety fence, forming a temporary protective barrier to prevent personnel from falling accidentally or tools from slipping, thereby reducing the risk of working at height and avoiding serious consequences such as construction workers falling and being injured or even endangering their lives due to the lack of effective protective measures. At the same time, it also avoids the situation where tools accidentally slip and injure people below or damage construction equipment.
[0020] 2. In this utility model, by setting up a blocking device, the effect of effectively intercepting falling stones, gravel and other objects from walls and buttresses is achieved. When stones and gravel fall off the walls and buttresses due to weathering, construction vibration and other reasons, the fine mesh of the net can quickly catch them, preventing the stones from falling directly to the ground. Whether it is small gravel or large stones, they can be effectively blocked by the net, preventing them from rolling into the construction passage or injuring people below, thus eliminating the safety hazard of falling objects from the source. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the protective device in this utility model; Figure 3 This is a partial structural diagram of the protective device in this utility model; Figure 4 This is a partial structural schematic diagram of the protective device in this utility model; Figure 5 This is a schematic diagram of the blocking device in this utility model; Figure 6 This is a partial structural schematic diagram of the blocking device in this utility model.
[0022] Legend: 1. Toe plate wall; 2. Wall; 3. Buttress; 4. Protective device; 401. Slide groove; 402. Protective frame; 403. Protective rod; 404. Limiting groove; 405. Limiting plate; 406. Fixing plate; 407. Fixing groove; 408. Drive rod; 409. Circular plate; 410. Anti-slip groove; 411. Support rod; 412. Drainage hole; 413. Ball bearing; 5. Barrier device; 51. Fixing rod; 52. U-shaped frame; 53. Square frame; 54. Net bag; 55. Threaded rod; 56. Rotating head. Detailed Implementation
[0023] Reference Figure 1 , Figure 2 and Figure 5As shown, this utility model provides a technical solution: a protective retaining wall for roadbed widening construction, including a toe slab wall 1, a wall 2, and a buttress 3. The surface of the wall 2 is equipped with a protective device 4. By setting the protective device 4, the construction workers can be protected while working on the wall 2. The construction workers can quickly move the protective frame 402 to the front of the work point according to the site work area. The three protective rods 403 on the protective frame 402 form a safety fence, creating a temporary protective barrier to prevent accidental falls or tool slippage, reducing the risk of high-altitude operations and avoiding injuries from accidental falls due to the lack of effective protective measures. To prevent serious consequences that could endanger lives, and to avoid situations where tools accidentally slip and injure people below or damage construction equipment, the surface of the toe wall 1 is equipped with a blocking device 5. By setting the blocking device 5, it is possible to effectively intercept stones, gravel, and other objects falling from the wall 2 and buttress 3. When stones or gravel fall from the wall 2 and buttress 3 due to weathering, construction vibration, or other reasons, the fine mesh of the net bag 54 can quickly catch them, preventing the stones from falling directly to the ground. Whether it is small gravel or large stones, they can be effectively blocked by the net bag 54, preventing them from rolling into the construction passage or injuring people below, thus eliminating the safety hazard of falling objects from the source.
[0024] The specific setup and function of its protective device 4 and blocking device 5 will be explained below.
[0025] Reference Figure 2 , Figure 3 and Figure 4As shown, in this embodiment: the protective device 4 includes a slide 401, which is formed on the surface of the wall 2. A protective frame 402 is slidably connected to the inner wall of the slide 401. Three protective rods 403 are fixedly connected to the inner wall of the protective frame 402. A limiting groove 404 is formed on the inner wall of the slide 401. A limiting plate 405 is fixedly connected to one side of the protective frame 402. The limiting plate 405 is slidably connected to the inner wall of the limiting groove 404. Several fixing grooves 407 are formed on the surface of the wall 2. A fixing plate 406 is fixedly connected to one side of the protective frame 402. The fixing plate 406 is internally threaded into... A drive rod 408 is provided, with its threaded surface slidably connected to a fixing groove 407. A circular plate 409 is fixedly connected to one end of the drive rod 408. Several anti-slip grooves 410 are formed on the arc surface of the circular plate 409, evenly distributed in a circumferential array. By setting the anti-slip grooves 410, the friction between the worker's hand and the circular plate 409 is significantly increased, preventing hand slippage and reducing hand muscle fatigue. Several ball bearings 413 are rotatably connected to the bottom surface of the protective frame 402. The arc surfaces of the 413 are all slidably connected to the slide groove 401. By setting the ball bearings 413, the sliding friction between the protective frame 402 and the slide groove 401 is converted into rolling friction, which greatly reduces the resistance when the protective frame 402 moves in the slide groove 401. The construction personnel only need to apply a small pushing force to easily and quickly slide the protective frame 402 to the required position. Two support rods 411 are fixedly connected to one side of the protective frame 402. The front end of the support rods 411 is arc-shaped. By setting the support rods 411, a suitable gripping point is provided for the construction personnel, making operation easier. The mobile protective frame 402, which makes it easier for personnel to move, greatly improves the convenience and efficiency of construction. The inner wall of the chute 401 is provided with several drainage holes 412, which are evenly distributed in a linear array within the chute 401. By setting up drainage holes 412, the drainage holes 412 can promptly drain the water accumulated in the chute 401 during the rainy season, preventing long-term immersion of water from causing corrosion of the metal parts of the chute 401 and the protective frame 402, as well as softening of the concrete structure. This effectively extends the service life of the protective device 4 and ensures the long-term stable operation of the protective retaining wall.
[0026] Reference Figure 5 and Figure 6As shown, specifically, both fixed rods 51 are fixedly connected to the surface of the toe plate wall 1. Two U-shaped frames 52 are slidably connected to the arc surfaces of the two fixed rods 51. A square frame 53 is fixedly connected to one side of the two U-shaped frames 52 that is close to each other. A net bag 54 is fixedly connected to the inner wall of the square frame 53. A threaded rod 55 passes through the internal thread of the U-shaped frame 52. A through hole is opened on the arc surface of the fixed rod 51. The inner wall of the through hole of the fixed rod 51 is threadedly connected to the threaded rod 55. A rotating head 56 is fixedly connected to one end of the threaded rod 55. When the net bag 54 is damaged or deformed due to intercepting a large number of stones and gravel, the construction personnel only need to rotate the rotating head 56 at one end of the threaded rod 55 to disengage the threaded rod 55 from the through hole of the fixed rod 51, thereby releasing the fixed connection between the U-shaped frame 52 and the fixed rod 51. This facilitates the repair and replacement of the net bag 54 and reduces the impact of equipment maintenance on the construction progress.
[0027] Working principle: In the initial stage of construction, a sliding groove 401 and a limiting groove 404 are precisely pre-cut on the surface of wall 2. The sliding groove 401 serves as the moving track for the protective frame 402, while the limiting groove 404 cooperates with the limiting plate 405 on one side of the protective frame 402 to form a guiding and anti-deviation mechanism. When the construction worker moves the guardrail according to the on-site work area, they hold the support rod 411. The support rod 411 provides a suitable gripping point for the construction worker to move the protective frame 402. Applying a pushing force to the support rod 411 causes the support rod 411 to move the protective frame 402 along the inner wall of the sliding groove 401. The protective frame 402 also causes the limiting plate 405 on one side to move within the limiting groove 404, preventing the protective frame 402 from deviating during movement. During the movement of the protective frame 402, several ball bearings 413 connected to the bottom surface of the protective frame 402 will come into contact with the inner wall of the slide 401. Then the ball bearings 413 will start to rotate, converting the sliding friction between the protective frame 402 and the slide 401 into rolling friction, thereby reducing the resistance generated when the protective frame 402 moves in the slide 401. This allows the construction personnel to easily slide the protective frame 402 along the slide 401 to the desired position with only a small pushing force. After the protective frame 402 moves to the appropriate position, it needs to be fixed to resist external forces during construction. The fixing plate 406 on one side of the protective frame 402 corresponds to the fixing groove 407 on the wall 2. The construction personnel hold the circular plate 409. The anti-slip groove 410 on the arc surface of 09 significantly increases the friction between the hand and the circular plate 409, preventing slippage. Rotating the circular plate 409 causes the drive rod 408 to rotate within the fixed plate 406 and then into the fixed groove 407. The engagement of the threaded surface with the fixed groove 407 securely fixes the protective frame 402 to the wall 2. The three protective rods 403 on the protective frame 402 form a safety fence, creating a temporary protective barrier for construction workers. The linearly arrayed drainage holes 412 on the inner wall of the chute 401 create an efficient drainage and damage prevention system. In rainy season construction environments, accumulated water in the chute 401 can be promptly drained through the drainage holes 412, preventing... To prevent long-term immersion in water from causing corrosion of the metal parts of the chute 401 and the protective frame 402, and softening of the concrete structure, the protective retaining wall is designed to operate stably for a long time. By installing the protective device 4, construction workers can be protected when working on the wall 2. Construction workers can quickly move the protective frame 402 to the front of the work point according to the work area. The three protective rods 403 on the protective frame 402 form a safety fence, creating a temporary protective barrier to prevent accidental falls of personnel or slippage of tools. This reduces the risk of working at height and avoids serious consequences such as accidental falls of construction workers that could result in injury or even death due to the lack of effective protective measures. It also prevents tools from accidentally slipping and injuring people below or damaging construction equipment.
[0028] Working principle: The blocking device 5 is based on two fixed rods 51 as its basic support structure, which are firmly connected to the surface of the toe plate wall 1, providing a reliable point of force for the entire device. Connected by the U-shaped frame 52, the square frame 53 and the net 54 constitute the core interception component. When stones, gravel, or other objects on the wall 2 and buttress 3 fall due to construction vibrations, weathering, or other reasons, the net 54, with its fine and resilient mesh structure, can quickly catch the falling objects, effectively preventing construction workers below from being struck by them. It also reduces the risk of damage to ground construction equipment from falling objects, ensuring a safe working environment in the construction area. When the net 54 of the blocking device 5 is damaged due to long-term interception of falling objects, or when the construction area needs to be relocated and the device needs to be moved to a new location, it can be easily disassembled. Construction workers rotate the rotating head 56 in the opposite direction to disengage the threaded rod 55 from the hole in the fixed rod 51, thus releasing the fixed connection between the U-shaped frame 52 and the fixed rod 51. Subsequently, the U-shaped frame 52, the square frame 53, and the net bag 54 can be easily removed from the fixed rod 51 for replacement of the net bag 54 or for overall relocation. By setting up the blocking device 5, the device effectively intercepts falling stones, gravel, and other objects from the wall 2 and buttress 3. When stones or gravel fall from the wall 2 and buttress 3 due to weathering, construction vibration, or other reasons, the fine mesh of the net bag 54 can quickly catch them, preventing the stones from falling directly to the ground. Whether it is small gravel or large stones, they can be effectively blocked by the net bag 54, preventing them from rolling into the construction passage or injuring people below, thus eliminating the safety hazard of falling objects from the source.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A protective retaining wall for roadbed widening construction, comprising a toe slab wall (1), a wall (2), and a buttress (3), characterized in that: The surface of the wall (2) is provided with a protective device (4), the protective device (4) includes a slide (401), the slide (401) is opened on the surface of the wall (2), a protective frame (402) is slidably connected to the inner wall of the slide (401), three protective rods (403) are fixedly connected to the inner wall of the protective frame (402), a limit groove (404) is opened on the inner wall of the slide (401), and a limit plate (404) is fixedly connected to one side of the protective frame (402). 05), the limiting plate (405) is slidably connected to the inner wall of the limiting groove (404), the surface of the wall (2) is provided with a number of fixing grooves (407), a fixing plate (406) is fixedly connected to one side of the protective frame (402), a driving rod (408) is threadedly inserted into the fixing plate (406), the threaded surface of the driving rod (408) is slidably connected to the fixing groove (407), and a circular plate (409) is fixedly connected to one end of the driving rod (408).
2. The protective retaining wall for roadbed widening construction according to claim 1, characterized in that: The circular plate (409) has a plurality of anti-slip grooves (410) on its arc surface, and the plurality of anti-slip grooves (410) are evenly distributed in a circumferential array on the circular plate (409).
3. A protective retaining wall for roadbed widening construction according to claim 1, characterized in that: The bottom surface of the protective frame (402) is rotatably connected to a number of ball bearings (413), and the arc surfaces of the ball bearings (413) are all slidably connected to the slide groove (401).
4. A protective retaining wall for roadbed widening construction according to claim 1, characterized in that: Two support rods (411) are fixedly connected to one side of the protective frame (402), and the front end of the support rods (411) is arc-shaped.
5. A protective retaining wall for roadbed widening construction according to claim 1, characterized in that: The inner wall of the chute (401) is provided with a plurality of drainage holes (412), and the plurality of drainage holes (412) are evenly distributed in a linear array within the chute (401).
6. A protective retaining wall for roadbed widening construction according to claim 1, characterized in that: The surface of the toe plate wall (1) is provided with a blocking device (5). The blocking device (5) includes two fixed rods (51). Both fixed rods (51) are fixedly connected to the surface of the toe plate wall (1). The arc surfaces of the two fixed rods (51) are slidably connected to two U-shaped frames (52). A square frame (53) is fixedly connected to the side of the two U-shaped frames (52) that is close to each other. A net bag (54) is fixedly connected to the inner wall of the square frame (53).
7. A protective retaining wall for roadbed widening construction according to claim 6, characterized in that: The U-shaped frame (52) has an internal thread through which a threaded rod (55) passes. The arc surface of the fixing rod (51) has a through hole. The inner wall of the through hole of the fixing rod (51) is threadedly connected to the threaded rod (55). One end of the threaded rod (55) is fixedly connected to a rotating head (56).