Automatic telescopic protection device for bridge construction anti-falling

By designing an automatic telescopic protective device, the problem of the device not fitting properly with the raised road surface during bridge construction was solved, thereby improving stability and safety, reducing the risk of debris falling under the bridge, and ensuring the safety of the area under the bridge and the stability of the device.

CN224494901UActive Publication Date: 2026-07-14四川西香高速建设开发有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
四川西香高速建设开发有限公司
Filing Date
2025-08-14
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing bridge construction safety devices are difficult to fit tightly to the ground when installed on raised road surfaces, resulting in poor protective effects. Furthermore, stones and other debris can easily fall through the gaps and into the area below the bridge, posing a safety threat.

Method used

An automatic telescopic protective device was designed, comprising a fixed frame, a protective plate, a connecting shell, and a telescopic mechanism. The telescopic mechanism consists of a telescopic column, a spring, and a limit rod, which can adaptively adjust the length to fit the ground. Combined with an elastic pad, a drain outlet, and a filter screen, it ensures the stability and protective effect of the device.

Benefits of technology

It effectively reduces the problem of poor protection caused by road surface protrusions, reduces the risk of debris falling under the bridge, improves the stability and safety of the device, ensures the safety of the area under the bridge, and maintains good drainage performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to bridge construction protection technical field, and disclose the automatic telescopic protection device for bridge construction anti -falling, including fixed frame and the mounting hole of opening in its inner wall, still include: the protection board of fixed connection in fixed frame one side, the utility model discloses through the setting of connecting shell and telescopic mechanism etc. Structure can make the bottom of elastic pad and ground fit, thereby reduced because the road surface protrusion leads to the situation that the device protection effect is not good, also reduced the risk that the stone and other sundries through connecting shell and ground gap fall to the bridge below, the security of the area below the bridge is guaranteed, under the action of the drain outlet, can in time the accumulated water that accumulated in the one side of the device is discharged, effectively alleviated because the accumulated water in the one side of the device accumulated and led to the situation that the device bears excessive pressure, improved the stability of the device, solved the problem that the existing device is not good when using adaptability and the stability is insufficient.
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Description

Technical Field

[0001] This utility model relates to the field of bridge construction protection technology, specifically to an automatic telescopic protective device for preventing falls during bridge construction. Background Technology

[0002] Bridge construction, as a core pillar of transportation infrastructure, not only bears the heavy responsibility of regional economic interconnection, but also directly relates to social welfare and public safety. Its construction process involves high-altitude operations, deep-water operations, large-scale machinery operation, and dealing with complex geological conditions. It is characterized by high technology intensity, strict environmental adaptability requirements, and many safety risks. Against this backdrop, protective devices, as a line of defense to ensure construction safety, directly determine the sustainability of the project through their technological innovation and application effectiveness.

[0003] However, when some existing devices are installed on raised road surfaces, they are difficult to fit tightly against the ground, resulting in a significant reduction in protective effectiveness. This lack of fit not only prevents the device from effectively blocking the potential impact of external factors on the bridge, but also provides an opportunity for stones and other debris to fall under the bridge through the gap between the connecting shell and the ground, thus posing a safety threat to people, facilities, and the ecological environment in the area below the bridge. Utility Model Content

[0004] The purpose of this invention is to provide an automatic telescopic protective device for preventing falls during bridge construction, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic telescopic protective device for preventing falls during bridge construction, comprising a fixing frame and mounting holes formed in its inner wall, and further comprising:

[0006] A protective plate is fixedly connected to one side of the fixing frame, and a connecting shell is fixedly connected to the bottom of the protective plate;

[0007] A telescopic mechanism that slides onto the inner wall of the connecting shell to fit against a raised road surface, wherein an elastic pad is provided at the bottom of the telescopic mechanism.

[0008] Preferably, the telescopic mechanism includes a telescopic column slidably connected to the inner wall of the connecting shell, a spring fixedly connected to the top of the telescopic column, and a plurality of limiting grooves opened in the inner cavity of the protective plate, with limiting rods slidably connected to the inner wall of the limiting grooves.

[0009] Preferably, the surface of the telescopic column is provided with a drain outlet, and a filter screen is fixedly connected to one side of the drain outlet, and the drain outlet and the filter screen are used together.

[0010] Preferably, the limiting rod is located inside the spring, and the spring and the limiting rod are used in conjunction.

[0011] Preferably, the elastic pad is made of rubber.

[0012] Preferably, the cross-sectional shape of both the limiting groove and the limiting rod is T-shaped.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, through the design of a connecting shell and a telescopic mechanism, allows the bottom of the elastic pad to fit snugly against the ground. This reduces the risk of inadequate protection due to road surface protrusions and lowers the risk of stones and other debris falling under the bridge through the gap between the connecting shell and the ground, ensuring the safety of the area under the bridge. Furthermore, the drainage outlet effectively drains accumulated water from one side of the device, mitigating the excessive pressure on the device caused by water accumulation and improving its stability. This invention solves the problems of poor adaptability and insufficient stability in existing devices. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0017] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Fixing frame; 2. Mounting hole; 3. Protective plate; 4. Connecting shell; 5. Telescopic mechanism; 51. Telescopic column; 52. Spring; 53. Limiting rod; 54. Limiting groove; 6. Drain outlet; 7. Filter screen; 8. Elastic pad. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4As shown, the automatic telescopic protective device for fall prevention in bridge construction includes a fixed frame 1, which is a right-angled triangular hollow frame structure. This special shape significantly improves the stability of the fixed frame 1 during use. Two fixed frames 1 are provided, each with two mounting holes 2 on its inner wall. These holes allow workers to install the fixed frame 1 onto the ground, ensuring its stability. A protective plate 3 is fixedly connected to one side of the fixed frame 1. The protective plate 3 acts as a barrier, separating workers from the danger zone and reducing the risk of accidental entry into the hazardous area, thus ensuring the safety of workers during operations. A connecting shell 4 is fixedly connected to the bottom of the protective plate 3, and the inner wall of the connecting shell 4 is slidably connected to... There are several telescopic mechanisms 5. The protective plate 3 works in conjunction with the connecting shell 4 and the telescopic mechanisms 5. Under this action, when the device is installed on a raised ground, the several telescopic mechanisms 5 can be adjusted independently according to the ground conditions, and each telescopic mechanism 5 can adaptively change its own length to fit the height changes of the ground. This reduces the situation where the protective effect of the device is not good when the road surface is raised, and also reduces the situation where stones and other debris fall under the bridge through the gap between the connecting shell 4 and the ground, thus ensuring the safety of the area under the bridge. The bottom of the telescopic mechanism 5 is provided with an elastic pad 8. The elastic pad 8 is made of rubber. Under this action, the telescopic mechanism 5 can fit better with the ground, thereby increasing the stability of the entire protective device and further reducing the shaking and displacement caused by uneven ground.

[0022] The telescopic mechanism 5 includes a telescopic column 51 slidably connected to the inner wall of the connecting shell 4. The bottom of the telescopic column 51 is fixedly connected to the surface of the elastic pad 8, and a spring 52 is fixedly connected to the top of the telescopic column 51. One end of the spring 52 is fixedly connected to the bottom of the protective plate 3. The inner cavity of the protective plate 3 has several limiting grooves 54. Limiting rods 53 are slidably connected to the inner wall of the limiting grooves 54. The bottom of the limiting rods 53 is fixedly connected to the surface of the telescopic column 51. The cross-sectional shape of the limiting grooves 54 and the limiting rods 53 is T-shaped. The limiting grooves 54 and the limiting rods 53 work together. Under this action, when the device is installed on a raised ground, the elastic pad 8 will cause the telescopic column 51 to drive the limiting rods 53 to compress the spring 52. At this time, the telescopic column 51 and the limiting rods 53 will slide on the inner walls of the connecting shell 4 and the limiting grooves 54 respectively, so that the bottom of the elastic pad 8 can fit with the ground, effectively reducing the situation where the device has an unsatisfactory protective effect due to the road surface protrusion. At the same time, stones and other debris pass through the connecting shell 4 and the The phenomenon of ground debris falling into the area under the bridge is reduced, thus ensuring the safety of the area under the bridge. The surface of the telescopic column 51 is provided with a drainage port 6, and a filter screen 7 is fixedly connected to one side of the drainage port 6. The drainage port 6 and the filter screen 7 work together to ensure that when it rains or other water sources are present, the drainage port 6 can drain the accumulated water in time, effectively reducing the pressure on the device caused by the accumulation of water on one side of the device, and improving the stability of the device. The filter screen 7 can also effectively prevent stones, mud and other debris from the construction site from entering the inner cavity of the drainage port 6, thereby reducing the possibility of these debris clogging the drainage port 6 and ensuring that the drainage port 6 can always remain unobstructed and maintain good drainage performance. The limiting rod 53 is located inside the spring 52. The spring 52 and the limiting rod 53 work together to guide the spring 52 during compression or rebound, effectively reducing the possibility of the spring 52 shifting significantly.

[0023] Working principle: When the device is installed on a raised road surface, the elastic pad 8 enables the telescopic column 51 to drive the limiting rod 53 to compress the spring 52. At this time, the telescopic column 51 and the limiting rod 53 slide on the inner walls of the connecting shell 4 and the limiting groove 54, respectively, so that the bottom of the elastic pad 8 can fit with the ground. This reduces the situation where the protective effect of the device is not good due to the road surface protrusion, and also reduces the risk of stones and other debris falling under the bridge through the gap between the connecting shell 4 and the ground, ensuring the safety of the area under the bridge. In addition, the filter screen 7 can block stones, mud and other debris from the construction site from entering the inner cavity of the drain outlet 6, reducing the possibility of debris clogging the drain outlet 6, ensuring that the drain outlet 6 can always remain unobstructed and maintain good drainage performance.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic telescopic protective device for preventing falls during bridge construction, comprising a fixed frame (1) and mounting holes (2) formed in its inner wall, characterized in that, Also includes: A protective plate (3) is fixedly connected to one side of the fixed frame (1), and a connecting shell (4) is fixedly connected to the bottom of the protective plate (3). A telescopic mechanism (5) is slidably connected to the inner wall of the connecting shell (4) to fit the raised road surface. An elastic pad (8) is provided at the bottom of the telescopic mechanism (5).

2. The automatic telescopic protective device for preventing falls during bridge construction as described in claim 1, characterized in that: The telescopic mechanism (5) includes a telescopic column (51) slidably connected to the inner wall of the connecting shell (4). A spring (52) is fixedly connected to the top of the telescopic column (51). The inner cavity of the protective plate (3) is provided with several limiting grooves (54). A limiting rod (53) is slidably connected to the inner wall of the limiting groove (54).

3. The automatic telescopic protective device for preventing falls during bridge construction according to claim 2, characterized in that: The surface of the telescopic column (51) is provided with a drain outlet (6), and a filter screen (7) is fixedly connected to one side of the drain outlet (6). The drain outlet (6) and the filter screen (7) are used together.

4. The automatic telescopic protective device for preventing falls during bridge construction according to claim 2, characterized in that: The limiting rod (53) is located inside the spring (52), and the spring (52) works in conjunction with the limiting rod (53).

5. The automatic telescopic protective device for preventing falls during bridge construction as described in claim 1, characterized in that: The elastic pad (8) is made of rubber.

6. The automatic telescopic protective device for preventing falls during bridge construction according to claim 2, characterized in that: The cross-sectional shape of both the limiting groove (54) and the limiting rod (53) is T-shaped.