Municipal engineering construction fence
By designing an adjustable-height construction fence component, the problem of inconvenient height adjustment of existing construction fences has been solved, achieving flexible adaptability and stable connection of the fence, and improving construction safety and versatility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 廊坊市市政设施管理中心
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-15
AI Technical Summary
The height of existing municipal engineering construction fences is inconvenient to adjust and cannot be dynamically adjusted according to the construction progress, resulting in safety hazards and reduced versatility.
A construction enclosure comprising components such as baffles, lifting platforms, telescopic columns, connecting columns, and retractable rods was designed. Through threaded connections and an elastic buffer structure, the height can be flexibly adjusted and the connection can be firmly established, thereby enhancing the adaptability and safety of the enclosure.
It enables flexible and precise adjustment of the fence height, improves construction safety, reduces the risk of loosening and falling off at the joints, and enhances the stability and reliability of the fence.
Smart Images
Figure CN224244573U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction safety protection technology, and in particular to a construction fence for municipal engineering projects. Background Technology
[0002] Construction site fencing is a widely used temporary protective facility in municipal engineering construction. Its main function is to isolate the construction site from the external environment, ensuring the safety of pedestrians and vehicles by preventing them from entering dangerous construction areas, and reducing the impact of construction activities on the surrounding environment, such as reducing the spread of construction noise and dust pollutants. Construction site fencing is typically made of metal, plastic, or composite materials, and is characterized by its durability, ease of installation, and reusability. Its structural forms are diverse, including prefabricated and modular designs. The height is generally set according to the actual needs and safety standards of the project. It is commonly found at various municipal engineering construction sites, such as road construction, bridge construction, and subway construction, and has become one of the important facilities to ensure the smooth progress of municipal engineering projects.
[0003] Construction site fencing for municipal engineering projects physically separates the construction site from external public areas. Its sturdy frame structure and enclosed or semi-enclosed protective panels effectively restrict the free entry of personnel and vehicles into the construction area, reducing the probability of accidents. The materials on the surface of the fencing have noise reduction and dust-proof properties, absorbing and reflecting sound waves and blocking the spread of dust, thus reducing the pollution of the surrounding environment caused by construction. Some fencing also have warning signs and lighting facilities, which enhance visibility at night or in inclement weather through visual and light cues, further ensuring the safety of pedestrians and vehicles. At the same time, the sturdy foundation and wind-resistant design of the fencing enable it to withstand interference from external natural factors, ensuring that it continues to provide protection during construction.
[0004] However, existing technologies for municipal engineering construction fences suffer from inconvenient height adjustment. With the booming development of municipal engineering construction, the construction scenarios are complex and varied, encompassing different types of projects such as road reconstruction and expansion, underground utility tunnel construction, and urban rail transit construction. Different projects, and even different construction stages of the same project, have significantly different height requirements for construction fences. However, due to limitations in existing technology, some municipal engineering construction fences have revealed obvious shortcomings in practical applications. Many construction fences adopt an integrated fixed structure design, with a limited height from the initial installation stage, making dynamic adjustment according to the construction progress impossible. For example, in the early stages of road widening projects, lower-height fences are sufficient, but during later stages of deep roadbed excavation, the fences cannot be raised, making it difficult to effectively isolate dangerous areas and posing safety hazards. Similarly, in the renovation of old residential areas, different buildings and different construction activities have varying requirements for fence height, but fixed-height fences are difficult to adapt flexibly, affecting not only the effectiveness of construction safety assurance but also reducing the versatility and reusability of the fences. Therefore, this paper proposes a municipal engineering construction fence design to solve these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a municipal engineering construction fence, which aims to improve the problem of inconvenient height adjustment in the use of existing municipal engineering construction fences.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a construction site enclosure for municipal engineering, comprising a baffle, a lifting plate fixedly connected to the inner wall of the baffle, two telescopic columns fixedly connected to the bottom end of the lifting plate, fixing blocks fixedly connected to both sides of the bottom end of the lifting plate, connecting columns fixedly connected to the opposite sides of the two fixing blocks, limit blocks fixedly connected to the bottom ends of the two connecting columns, retractable rods fixedly connected to the top ends of the two connecting columns, fixing columns fixedly connected to the top ends of the two retractable rods, nuts threadedly connected to the front sides of the two limit blocks, two connecting blocks fixedly connected to the front side of the lifting plate, control strips fixedly connected to the front sides of the two connecting blocks, and connecting components for connection fixedly connected to both sides of the baffle.
[0007] As a further description of the above technical solution: the connecting assembly includes two front connecting plates, with the adjacent sides of the two front connecting plates fixedly connected to both sides of the baffle, and multiple shrinkage columns three fixedly connected to the rear interior of the two front connecting plates, and a rear connecting plate fixedly connected to the rear of the two front connecting plates, with multiple shrinkage columns one fixedly connected to the interior of the opposite side of the two rear connecting plates, and multiple shrinkage columns two fixedly connected to the interior of the opposite side of the two front connecting plates, with I-shaped columns fixedly connected to the inner walls of the two front connecting plates, and vibration damping pads one and two slidably connected to the inner walls of the opposite side of the two rear connecting plates, respectively. Multiple nuts two are threadedly connected to the front inner walls of the two front connecting plates.
[0008] As a further description of the above technical solution: the two retractable rods are externally slidably connected to the inner walls of both sides of the baffle, and the two fixed columns are fixedly connected to the inner walls of both sides of the top of the baffle on opposite sides.
[0009] As a further description of the above technical solution: the front sides of the two connecting blocks are slidably connected to the front inner wall of the baffle, and the rear side of the control strip is slidably connected to the front side of the baffle.
[0010] As a further description of the above technical solution: the external threads of the two nuts are connected to the front side of the baffle, and the opposite sides of the two limiting blocks are slidably connected to the inner walls of the baffle.
[0011] As a further description of the above technical solution: the two opposite sides of the first vibration damping pads are fixedly connected to the adjacent sides of the multiple first contraction columns; the two opposite sides of the second vibration damping pads are fixedly connected to the adjacent sides of the multiple second contraction columns; springs are sleeved on the outside of the multiple first contraction columns; springs are sleeved on the outside of the multiple second contraction columns; the adjacent sides of the two first vibration damping pads are respectively fixedly connected to the rear end of the opposite side of the two I-shaped columns; and the adjacent sides of the two second vibration damping pads are respectively fixedly connected to the front end of the opposite side of the two I-shaped columns.
[0012] As a further description of the above technical solution: the rear sides of the plurality of shrinkage columns three are respectively fixedly connected to the front interior of the two rear connecting plates, the rear sides of the plurality of nuts two are respectively threadedly connected to the front interior of the two rear connecting plates, and the front inner walls of the two rear connecting plates are respectively fixedly connected to the rear exterior of the two I-shaped columns.
[0013] As a further description of the above technical solution: a top cover is fixedly connected to the top of the lifting plate, and a support block is fixedly connected to the bottom of the baffle.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, a retractable rod is slidably connected to the inner wall of the baffle. When the rod extends or retracts, it drives the lifting plate to move in the vertical direction. The connecting column cooperates with the limiting block. The limiting block is fixed to the baffle by a nut. Loosening the nut allows the connecting column to move the lifting plate, while tightening it fixes the position. The control bar is connected to the lifting plate through the connecting block. Pushing the control bar can drive the lifting plate to adjust its overall height, thereby achieving flexible and precise adjustment of the lifting plate height and meeting the diverse needs of the enclosure height in different construction scenarios.
[0016] 2. In this utility model, the front connecting plate is fixed to the baffle, which drives the rear connecting plate, shrink column and I-shaped column to form an integral structure. The springs one and two sleeved on the outside of the shrink column one and two are compressed and deformed when subjected to force, which drives the vibration damping pad one and two to slide. The impact of external force is reduced through elastic buffering. The nut two is threadedly connected to the front connecting plate and the rear connecting plate. After tightening, the vibration damping amplitude can be fixed and its relative movement can be restricted. The I-shaped column enhances the connection strength between the front connecting plate and the rear connecting plate, and at the same time provides a support point for the vibration damping pad, ensuring the stability of the structure when subjected to force. Thus, the fence connection component can be effectively buffered and stably fixed when subjected to external force, which greatly improves the stability and reliability of the fence connection and reduces the risk of loosening and falling off at the connection. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of a municipal engineering construction fence proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of a baffle for a municipal engineering construction site according to the present invention;
[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0020] Figure 4 This is a schematic diagram of the structure of an I-shaped column for a municipal engineering construction enclosure proposed in this utility model;
[0021] Figure 5 for Figure 4 Enlarged view of point B in the middle.
[0022] Legend:
[0023] 1. Baffle; 2. Lifting plate; 3. Telescopic column; 4. Fixing block; 5. Connecting column; 6. Limiting block; 7. Retractable rod; 8. Fixing column; 9. Nut 1; 10. Connecting block; 11. Control bar; 12. Front connecting plate; 13. Rear connecting plate; 14. I-shaped column; 15. Retractable column 1; 16. Retractable column 2; 17. Vibration damping pad 1; 18. Vibration damping pad 2; 19. Retractable column 3; 20. Nut 2; 21. Spring 1; 22. Spring 2; 23. Top cover; 24. Support block. Detailed Implementation
[0024] 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.
[0025] Reference Figures 1 to 3 This utility model provides an embodiment of a municipal engineering construction fence, including a barrier 1. A lifting plate 2 is fixedly connected to the inner wall of the barrier 1. The lifting plate 2 can be operated to adjust the fence height to adapt to different construction scenarios or protection requirements. Two telescopic columns 3 are fixedly connected to the bottom end of the lifting plate 2. When the lifting plate 2 rises or falls, the telescopic columns 3 adjust their length synchronously to ensure that the lifting plate 2 remains stable at different heights. Fixing blocks 4 are fixedly connected to both sides of the bottom end of the lifting plate 2. When the lifting plate 2 moves, these blocks transmit the force of the lifting plate 2 to the connecting columns 5, while simultaneously enhancing the strength of the connection.
[0026] Connecting columns 5 are fixedly connected to the opposite sides of the two fixed blocks 4. When the lifting plate 2 moves or the enclosure is subjected to force, the connecting columns 5 stably transmit the force and maintain the balance of the structure. Limiting blocks 6 are fixedly connected to the bottom ends of the two connecting columns 5. When it is necessary to adjust the height of the lifting plate 2, the nut 9 is loosened, and the limiting block 6 can slide in the groove, and the connecting column 5 moves accordingly. After adjusting to the appropriate height, the nut 9 is tightened. Retractable rods 7 are fixedly connected to the top ends of the two connecting columns 5. When the lifting plate 2 rises, the retractable rods 7 extend upwards and maintain the connection with the fixed columns 8; when the lifting plate 2 descends, the retractable rods 7 retract. Fixed columns 8 are fixedly connected to the top ends of the two retractable rods 7. During the use of the enclosure, the fixed columns 8 serve as the fixed ends of the retractable rods 7, limiting the range of movement of the retractable rods 7 and keeping the retractable rods 7 stable during extension and retraction.
[0027] Two limiting blocks 6 are threaded with nuts 9 on their front sides. When nuts 9 are tightened, they press the limiting blocks 6 firmly against the inner wall of the baffle 1, restricting their movement and thus fixing the position of the lifting plate 2. When nuts 9 are loosened, the limiting blocks 6 can slide freely within the grooves on the inner wall of the baffle 1, facilitating height adjustment of the lifting plate 2. Two connecting blocks 10 are fixedly connected to the front side of the lifting plate 2. When the control bar 11 is operated, the connecting blocks 10 transmit force to the lifting plate 2, causing it to move. Control bars 11 are fixedly connected to the front side of the two connecting blocks 10, transmitting the force applied by the operator to the control bars 11 to the connecting blocks 10 and the lifting plate 2, thus adjusting the height of the lifting plate 2. Connecting components for connection are fixedly connected to both sides of the baffle 1.
[0028] Reference Figures 3 to 5 The connecting assembly includes two front connecting plates 12, with their adjacent sides fixedly connected to both sides of the baffle 1. Multiple contraction columns 19 are fixedly connected to the rear interior of each of the two front connecting plates 12. When the connecting assembly is subjected to external pressure or tension, the contraction columns 19 can correspondingly contract or extend. Rear connecting plates 13 are fixedly connected to the rear of each of the two front connecting plates 12, forming a front-to-back clamping structure with the front connecting plates 12, together constituting the main frame of the connecting assembly. The fixed connection of the rear connecting plates 13 to the front connecting plates 12 enhances the overall strength and stability of the connecting assembly. Multiple contraction columns 15 are fixedly connected to the interior of the opposite sides of each of the two rear connecting plates 13. When the enclosure is subjected to lateral pressure or impact, the contraction columns 15 will compress the springs 21 for cushioning. Multiple retractable columns 16 are fixedly connected to the interior of the two opposite sides of the front connecting plates 12. When the enclosure is subjected to forces in opposite directions, the retractable columns 16 and springs 22 work together to buffer and adjust the force. I-shaped columns 14 are fixedly connected to the inner walls of the two front connecting plates 12, and vibration damping pads 17 are slidably connected to the inner walls of the two opposite sides of the rear connecting plates 13. When the retractable columns 15 are compressed by external forces, the vibration damping pads 17 will slide along the inner walls of the rear connecting plates 13 under the action of friction, further absorbing and dispersing the impact force. Vibration damping pads 18 are slidably connected to the inner walls of the two opposite sides of the front connecting plates 12. When external forces are transmitted to the front connecting plates 12, the vibration damping pads 18 will alleviate the impact force between the retractable columns 16 and the front connecting plates 12 through sliding and elastic deformation. Multiple nuts 20 are threadedly connected to the front inner walls of the two front connecting plates 12. The fastening characteristics of the threaded connections generate sufficient friction to prevent relative displacement of the components during use.
[0029] Reference Figures 1 to 3Two retractable rods 7 are externally slidably connected to the inner walls of both sides of the baffle 1. When the lifting plate 2 is height adjusted, the retractable rods 7 move up and down along the slide rail on the inner wall of the baffle 1 under the drive of the lifting plate 2. The two fixed columns 8 are fixedly connected to the inner walls of the top two sides of the baffle 1 on opposite sides. During the extension and retraction of the retractable rods 7, the fixed columns 8 provide stable support points, bear the tension and pressure transmitted by the retractable rods 7, limit the range of movement of the retractable rods 7, and make them extend and retract only in the vertical direction. The front sides of the two connecting blocks 10 are externally slidably connected to the inner wall of the front side of the baffle 1. When the operator pushes the control bar 11, the control bar 11, through its fixed connection with the connecting blocks 10, drives the connecting blocks 10 to slide in the slide groove on the inner wall of the front side of the baffle 1, thereby transmitting the thrust to the lifting plate 2 and realizing the movement of the lifting plate 2. The rear side of the control bar 11 is slidably connected to the front side of the baffle 1.
[0030] The operator pushes and pulls the control bar 11, utilizing its fixed connection with the connecting block 10 to transmit operating force to the connecting block 10, thereby driving the lifting plate 2 to move. The external threads of the two nuts 9 are connected to the inside of the front side of the baffle 1. When the height of the lifting plate 2 needs to be adjusted, the nuts 9 are loosened, reducing the friction between the nuts 9 and the baffle 1, causing the limiting block 6 to lose its constraint and slide freely within the grooves on both sides of the inner wall of the baffle 1. When the lifting plate 2 is adjusted to the appropriate height, the nuts 9 are tightened. The friction generated by the threaded connection of the nuts 9 presses the limiting block 6 tightly against the inner wall of the baffle 1, thus fixing the position of the lifting plate 2.
[0031] Two limiting blocks 6 are slidably connected to the inner walls of baffle 1 on opposite sides. When nut 9 is tightened, the limiting blocks 6 are fixed to the inner wall of baffle 1, preventing the connecting column 5 and lifting plate 2 from moving. Two damping pads 17 are fixedly connected to the adjacent sides of multiple retractable columns 15 on opposite sides. When the retractable column 15 is subjected to lateral pressure or impact, it compresses spring 21 and causes the damping pad 17 to undergo elastic deformation. The damping pad 17 absorbs some energy through its own deformation, and at the same time, the sliding friction between it and the inner wall of the rear connecting plate 13 converts mechanical energy into heat energy, further consuming the impact force. Two damping pads 18 are fixedly connected to the adjacent sides of multiple retractable columns 16 on opposite sides. When the enclosure is subjected to external force from another side, the retractable column 16 compresses spring 22 and pushes the damping pad 18. The damping pad 18 absorbs and disperses the impact force through elastic deformation and sliding friction, complementing the damping pad 17 and jointly resisting external forces from different directions.
[0032] Multiple contraction columns 15 are each fitted with a spring 21. When a contraction column 15 is subjected to lateral pressure or impact, the spring 21 is compressed, absorbing energy through its elastic deformation and converting the impact force into the elastic potential energy of the spring. When the external force disappears, the spring 21 returns to its original shape, pushing the contraction column 15 back to its original position. Multiple contraction columns 26 are each fitted with a spring 22. When a contraction column 26 is subjected to an external force from another side, the spring 22 is compressed, absorbing the energy generated by the external force. After the external force disappears, the spring 22 restores its elastic deformation, driving the contraction column 26 back to its original position. The adjacent sides of two vibration damping pads 17 are fixedly connected to the outer rear ends of the two I-shaped columns 14 on opposite sides, and the adjacent sides of two vibration damping pads 18 are fixedly connected to the outer front ends of the two I-shaped columns 14 on opposite sides. This ensures the stability of the vibration damping pads 18 during the buffering and absorption of external forces, improving their vibration damping effect.
[0033] Multiple retractable columns 19 are fixedly connected to the rear sides of the inner front sides of the two rear connecting plates 13, enhancing the buffering performance of the connection between the front connecting plate 12 and the rear connecting plate 13 and improving the impact resistance of the connecting assembly. Multiple nuts 20 are threadedly connected to the rear sides of the inner front sides of the two rear connecting plates 13. By rotating the nuts 20, they are tightly connected to the rear connecting plates 13 and the front connecting plate 12. The inner front walls of the two rear connecting plates 13 are fixedly connected to the outer rear sides of the two I-shaped columns 14. When the connecting assembly is subjected to external force, the I-shaped columns 14, with their high strength, transmit the force to the rear connecting plates 13. The rear connecting plates 13 and the front connecting plate 12 work together to distribute the force evenly throughout the connecting assembly. A top cover 23 is fixedly connected to the top of the lifting plate 2, effectively preventing rainwater and dust from entering the enclosure. Its arc-shaped design allows rainwater to slide off quickly, preventing water accumulation. A support block 24 is fixedly connected to the bottom of the baffle 1. The baffle 1 provides a stable support base, and its large bottom area and anti-slip texture can increase the friction with the ground and prevent the baffle 1 from shifting or tilting when subjected to force.
[0034] Working principle: When the height of the lifting plate 2 needs to be adjusted, the operator loosens nut 9 to release the fixing restriction on the limiting block 6. At this time, the connecting column 5 can drive the limiting block 6 to slide on both sides of the inner wall of the baffle 1. Pulling the control bar 11, the control bar 11 drives the lifting plate 2 to move through the connecting block 10. When the lifting plate 2 moves, it drives the telescopic column 3 to extend and retract, and the retracting rod 7 to slide on both sides of the inner wall of the baffle 1. After adjusting to the appropriate height, tighten nut 9. Nut 9 drives the limiting block 6 to fix, thereby stabilizing the connecting column 5, lifting plate 2, and other structures. This achieves flexible, convenient, and stable adjustment of the height of the lifting plate 2, and can quickly adjust the height of the enclosure according to the protection requirements of different construction scenarios, enhancing the adaptability and safety of the enclosure.
[0035] When the fence is in use, the front connecting plate 12 is fixed to both sides of the baffle 1, driving the rear connecting plate 13, the retractable column, and the I-shaped column 14 to form a stable connection base. Nut 20 is threaded to the front connecting plate 12 and the rear connecting plate 13. When tightened, it tightly fixes all components and restricts relative displacement. When the fence is impacted by external force, the springs 21 and 22 on the outside of the retractable column 15 and retractable column 26 are compressed, causing the vibration damping pads 17 and 18 to slide along the I-shaped column 14, buffering the impact force through elastic deformation. The retractable column 3 19 connects the front connecting plate 12 and the rear connecting plate 13, enhancing their cooperative force-bearing capacity and ensuring the overall stability of the structure. Thus, when the fence connection components are subjected to external force, they effectively disperse the impact force, reduce the risk of component loosening, significantly improve the stability and reliability of the fence connection, and ensure the long-term stable use of the fence in complex construction environments.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A construction site enclosure for municipal engineering projects, comprising a barrier (1), characterized in that: A lifting plate (2) is fixedly connected to the inner wall of the baffle (1). Two telescopic columns (3) are fixedly connected to the bottom end of the lifting plate (2). Fixed blocks (4) are fixedly connected to both sides of the bottom end of the lifting plate (2). Connecting columns (5) are fixedly connected to the opposite sides of the two fixed blocks (4). Limiting blocks (6) are fixedly connected to the bottom ends of the two connecting columns (5). Retractable rods (7) are fixedly connected to the top ends of the two connecting columns (5). Fixed columns (8) are fixedly connected to the top ends of the two retractable rods (7). Nuts (9) are threadedly connected to the front sides of the two limiting blocks (6). Two connecting blocks (10) are fixedly connected to the front side of the lifting plate (2). Control strips (11) are fixedly connected to the front sides of the two connecting blocks (10). Connecting components for connection are fixedly connected to both sides of the baffle (1).
2. The municipal engineering construction fence according to claim 1, characterized in that: The connecting assembly includes two front connecting plates (12), with the adjacent sides of the two front connecting plates (12) fixedly connected to both sides of the baffle (1). Multiple shrinkage columns three (19) are fixedly connected to the rear sides of the two front connecting plates (12), and rear connecting plates (13) are fixedly connected to the rear sides of the two front connecting plates (12). Multiple shrinkage columns one (15) are fixedly connected to the distant sides of the two rear connecting plates (13), and multiple shrinkage columns two (16) are fixedly connected to the distant sides of the two front connecting plates (12). I-shaped columns (14) are fixedly connected to the inner walls of the two front connecting plates (12), and vibration damping pads one (17) are slidably connected to the inner walls of the distant sides of the two rear connecting plates (13). Vibration damping pads two (18) are slidably connected to the inner walls of the distant sides of the two front connecting plates (12), and multiple nuts two (20) are threadedly connected to the inner walls of the front sides of the two front connecting plates (12).
3. The municipal engineering construction fence according to claim 1, characterized in that: The two retractable rods (7) are externally slidably connected to the inner walls of both sides of the baffle (1), and the two fixed columns (8) are fixedly connected to the inner walls of both sides of the top of the baffle (1) on opposite sides.
4. A municipal engineering construction fence according to claim 1, characterized in that: The front sides of the two connecting blocks (10) are slidably connected to the front inner wall of the baffle (1), and the rear side of the control strip (11) is slidably connected to the front side of the baffle (1).
5. A municipal engineering construction fence according to claim 1, characterized in that: The external threads of the two nuts (9) are connected to the front side of the baffle (1), and the two limiting blocks (6) are slidably connected to the two sides of the inner wall of the baffle (1) on opposite sides.
6. A municipal engineering construction fence according to claim 2, characterized in that: The two vibration damping pads (17) are fixedly connected at opposite sides to the adjacent sides of the multiple shrinking columns (15), the two vibration damping pads (18) are fixedly connected at opposite sides to the adjacent sides of the multiple shrinking columns (16), the multiple shrinking columns (15) are all fitted with springs (21), the multiple shrinking columns (16) are all fitted with springs (22), the two vibration damping pads (17) are fixedly connected at opposite sides to the rear end of the two I-shaped columns (14), and the two vibration damping pads (18) are fixedly connected at opposite sides to the front end of the two I-shaped columns (14).
7. A construction site enclosure for municipal engineering projects according to claim 2, characterized in that: The rear sides of the multiple shrinking columns (19) are respectively fixedly connected to the front interior of the two rear connecting plates (13), the rear sides of the multiple nuts (20) are respectively threadedly connected to the front interior of the two rear connecting plates (13), and the front inner walls of the two rear connecting plates (13) are respectively fixedly connected to the rear exterior of the two I-shaped columns (14).
8. A construction site enclosure for municipal engineering projects according to claim 1, characterized in that: The top of the lifting plate (2) is fixedly connected to a top cover (23), and the bottom of the baffle (1) is fixedly connected to a support block (24).