Protective fence structure for municipal construction
By using retractable telescopic rods and limiting components, as well as the docking structure of wedge blocks and inclined blocks, the problem of cumbersome connection structures for municipal construction protective fences has been solved, enabling rapid installation, flexible adjustment, and efficient disassembly, thereby improving construction efficiency and equipment adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN QIANCHENG ZHIYUAN CONSTR ENG CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-24
AI Technical Summary
The existing connection structure of municipal construction protective fences is cumbersome to install and dismantle, has poor adaptability, affects construction efficiency and safety management, and does not conform to the concept of green construction.
It adopts a telescopic rod and limiting components, combined with the docking structure of wedge block and inclined block, and achieves quick connection and flexible adjustment through threaded connection and compression spring drive. The threaded connection between the support base and the column enhances stability.
It enables rapid installation and dismantling of protective fences, enhances adaptability to different construction sites, reduces maintenance costs, and improves equipment reuse rate and construction efficiency.
Smart Images

Figure CN224549814U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of municipal engineering construction equipment technology, and in particular to a protective fence structure for municipal construction. Background Technology
[0002] In municipal construction, protective fencing is a key piece of equipment for ensuring the safety of the construction area and isolating the construction site from the external environment. Its installation stability and ease of operation directly affect construction efficiency and safety management effectiveness. Existing municipal construction protective fencing connection structures generally suffer from cumbersome installation and dismantling processes, severely restricting construction progress and equipment reuse rates. Currently, most protective fences connect adjacent components using bolts or welding. When bolting, each bolt must be tightened or loosened individually using tools like wrenches. In scenarios where the fence's extent is frequently adjusted at the construction site, each adjustment necessitates repeated disassembly, handling, and reinstallation of bolts, consuming significant manpower and time. Furthermore, bolt corrosion or stripped threads can lead to disassembly difficulties and increased maintenance costs. While welding provides higher initial connection strength, the fence components become an inseparable whole. When site dimensions change requiring adjustments to fence length, or when components need replacement due to collisions or wear, the weld points must be cut. This not only damages the structural integrity of the components, making them difficult to reuse, but also generates metal waste, contradicting green construction principles. Furthermore, in emergency construction scenarios, such as sudden pipeline repairs requiring temporary expansion of the protected area, the inefficient operation of existing connection structures can delay the rapid deployment of protective fencing, increasing safety hazards in the construction area. This cumbersome connection problem, given the short construction cycles and variable site conditions in municipal projects, has become a significant bottleneck affecting construction efficiency and safety management, necessitating a protective fencing structure that allows for rapid connection and flexible adjustment. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of existing municipal construction protective fence connection structures, such as cumbersome installation and disassembly and poor adaptability, and to provide a protective fence structure for municipal construction that enables rapid connection and flexible adjustment of fence components, improves installation and disassembly efficiency, and enhances adaptability to different construction sites.
[0004] The protective fence structure for municipal construction provided in this application adopts the following technical solution: it includes a fixed frame, and a connecting part and a enclosure part adapted to the fixed frame; the connecting part includes a first connecting component and a second connecting component respectively disposed on both sides of the enclosure part, and the enclosure part is connected to the fixed frame through the first connecting component and the second connecting component.
[0005] Optionally, the fixing frame includes a vertically arranged column and a support base connected to the column. The bottom of the support base is provided with a support foot, and a fastening screw is provided on the support base. The fastening screw is threadedly connected to the column.
[0006] Optionally, the enclosure includes a telescopic rod, which comprises an inner rod and an outer tube. The inner rod can slide within the outer tube, and both ends of the telescopic rod are threadedly connected to the corresponding fixing brackets. At least one of the telescopic rods is provided with a telescopic limiting component, which includes a limiting cylinder disposed on the outer tube. The limiting cylinder contains a slidable limiting post. The inner rod has multiple limiting holes, and the limiting post can be inserted into the limiting holes. A first compression spring is sleeved on the limiting post, and a pull ring is provided at the top of the limiting post.
[0007] Optionally, the limiting cylinder and the telescopic rod are detachably connected by welding or bolts; the limiting holes are evenly distributed along the length direction of the inner rod, and the distance between two adjacent limiting holes is 5-10mm.
[0008] Optionally, the first connecting component includes a fixed housing, a sliding column inside the fixed housing, and a wedge block on the sliding column; the second connecting component has an inclined block that can be inserted into the fixed housing, and the inclined block has an inclined surface that matches the wedge block. The wedge block and the inclined block slide relative to each other to achieve docking and limiting of the first connecting component and the second connecting component.
[0009] Optionally, the fixed housing is provided with a second compression spring for driving the sliding column to reset. The second compression spring is sleeved on the outside of the sliding column, and the two ends of the second compression spring abut against the inner wall of the fixed housing and the sliding column, respectively.
[0010] In summary, this application includes the following beneficial technical effects: 1. Convenient and efficient connection: The wedge block of the first connecting component cooperates with the inclined block of the second connecting component, and the relative sliding of the inclined surfaces achieves quick docking and limiting. The initial connection can be completed without tools. With the second compression spring driving the sliding column to reset, the connection stability is ensured, and the installation and disassembly time is greatly shortened.
[0011] 2. High adaptability: The enclosure adopts a telescopic rod, which, together with the limiting rod and limiting cylinder structure of the limiting component, allows for flexible adjustment of the enclosure length according to the size of the construction site. The equally spaced limiting holes ensure adjustment accuracy and meet the protection needs of different scenarios.
[0012] 3. Stable and reliable structure: The fixing frame is threaded to the column through fastening screws, and the support feet of the support base enhance the overall stability; the limiting post of the limiting component, together with the first compression spring, ensures that the limiting rod is firmly positioned after adjustment and avoids loosening during use.
[0013] 4. Easy maintenance: The limit cylinder and the telescopic rod are connected by welding or bolts. The detachable structure of the first connecting component and the second connecting component makes it easy to replace parts individually, reduce maintenance costs, and improve equipment reuse rate. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the device. Figure I ; Figure 2 This is a schematic diagram of the overall structure of the device. Figure II ; Figure 3 This is the front view of the device; Figure 4 This is a cross-sectional schematic diagram of the overall structure of this device; Figure 5 For this device Figure 4 Enlarged view of A in the middle; Among them, 1. fixed frame, 2. connecting part, 3. enclosure part, 4. first connecting component, 5. second connecting component, 6. column, 7. support base, 8. support leg, 9. fastening screw, 10. telescopic rod, 11. inner rod, 12. outer tube, 13. limiting component, 14. limiting cylinder, 15. limiting post, 16. limiting hole, 17. first compression spring, 18. pull ring, 19. fixed housing, 20. sliding post, 21. wedge block, 22. inclined block, 23. second compression spring. Detailed Implementation
[0015] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.
[0016] Reference Figure 1 , Figure 2One embodiment shown is as follows: the protective fence structure is composed of a fixing frame 1, a connecting part 2, and a enclosure part 3. The fixing frame 1 is located at the bottom and edge of the entire structure, serving to support and fix the entire protective fence. The first connecting component 4 and the second connecting component 5 of the connecting part 2 are respectively installed on the left and right sides of the enclosure part 3. In this embodiment, one side of the enclosure part 3 is firmly connected to the first connecting component 4 by welding or bolting, so that the first connecting component 4 can stably operate with the enclosure part 3; similarly, the other side of the enclosure part 3 is also firmly connected to the second connecting component 5 in the same way. After the first connecting component 4 and the second connecting component 5 are connected to the enclosure part 3, they are connected to the fixing frame 1 through a specific mating structure, such as by a snap-fit method, thereby firmly connecting the enclosure part 3 to the fixing frame 1.
[0017] The implementation principle of the above embodiment is as follows: by firmly connecting the enclosure part 3 with the first connecting component 4 and the second connecting component 5 on both sides, the enclosure part 3 has a basis for docking with the fixed frame 1. The connection method between the first connecting component 4, the second connecting component 5 and the fixed frame 1 can ensure the installation stability of the enclosure part 3 on the fixed frame 1, realize the effective connection of the main components in the protective fence structure, thereby constructing a complete protective fence and playing the role of isolating the construction area.
[0018] Reference Figure 1 , Figure 2 One embodiment shown is as follows: The mounting bracket 1 mainly consists of a column 6 and a support base 7. The support base 7 is placed horizontally on the ground, with multiple legs 8 evenly distributed at its bottom. The legs 8 are connected to the support base 7 by welding or bolting to ensure the stability of the support base 7 on the ground. The column 6 is set perpendicular to the support base 7, and its lower end is inserted into a pre-drilled mounting hole in the support base 7. A threaded hole is provided on the support base 7 near the column 6, through which a fastening screw 9 passes, with one end of the screw contacting the column 6. In this embodiment, the fastening screw 9 and the threaded hole of the support base 7 have a tight threaded fit. When the fastening screw 9 is rotated, the screw can move axially within the threaded hole. The column 6 and the support base 7 can rotate relative to each other, thereby adjusting the connection angle. After adjustment, the connection can be tightened by the fastening screw 9.
[0019] The implementation principle of the above embodiment is as follows: the support base 7 contacts the ground through the bottom support legs 8, distributing the weight of the entire fixing frame 1 and the protective fence, thus ensuring the stability of the fixing frame 1 on the ground. After the column 6 is inserted into the support base 7, the fastening screw 9 is rotated to tighten one end of the screw against the column 6, thereby achieving the fastening of the column 6, ensuring the stability of the column 6 in the vertical direction, and providing stable support for the entire protective fence structure.
[0020] Reference Figure 3 , Figure 4 , Figure 5 One embodiment shown is as follows: The main structure of the enclosure 3 is a telescopic rod 10, which consists of an inner rod 11 and an outer tube 12. The inner rod 11 can slide within the outer tube 12 within a certain range, thereby realizing the telescopic function of the telescopic rod 10. One end of the telescopic rod 10 is connected to a fixing frame 1 on one side by a threaded connection. Specifically, the end of the telescopic rod 10 is provided with an external thread, and the fixing frame 1 is provided with an internal threaded hole at a corresponding position. The two are connected by threaded engagement. The other end of the telescopic rod 10 is also connected to the fixing frame 1 on the other side by the same threaded connection. A limiting cylinder 14 is fixed to at least one telescopic rod 10 by welding or bolting. The limiting cylinder 14 is parallel to the telescopic rod 10. The limiting rod is located inside the limiting cylinder 14 and can slide freely within the limiting cylinder 14 along its axial direction. Multiple limiting holes 16 are equally spaced along the length of the inner rod 11. The limiting cylinder 14 has a through hole through which the limiting post 15 passes, and one end of the limiting post 15 can be inserted into the limiting hole 16 on the inner rod 11. A first compression spring 17 is sleeved on the limiting post 15. One end of the first compression spring 17 abuts against the outer wall of the limiting cylinder 14, and the other end abuts against the flange on the limiting post 15, so that the limiting post 15 always has a tendency to move in the direction of the inner rod 11. A pull ring 18 is welded to the top of the limiting post 15 for easy operation by the operator.
[0021] The implementation principle of the above embodiment is as follows: When it is necessary to adjust the length of the enclosure part 3, the overall length of the telescopic rod 10 can be changed by pulling or pushing it to adapt to the needs of different construction sites. During the adjustment process, when it is necessary to fix the length of the telescopic rod 10, the pull ring 18 at the top of the limiting post 15 can be pulled to make the limiting post 15 overcome the elastic force of the first compression spring 17 and disengage from the limiting hole 16 of the inner rod 11. At this time, the inner rod 11 can be slid. After adjusting to a suitable position, the pull ring 18 can be released. Under the action of the first compression spring 17, the limiting post 15 is reinserted into the limiting hole 16 of the inner rod 11, thereby limiting the length of the telescopic rod 10 and ensuring the stability of the enclosure part 3 after adjustment.
[0022] Reference Figure 3 , Figure 4 , Figure 5One embodiment is shown where the limiting cylinder 14 and the telescopic rod 10 of the enclosure part 3 are connected in two ways. If welding is used, one side of the limiting cylinder 14 is firmly connected to the outer wall of the telescopic rod 10, making the limiting cylinder 14 and the telescopic rod 10 a single unit, preventing relative displacement during use. If bolting is used, bolt holes are made at corresponding positions on the limiting cylinder 14 and the telescopic rod 10. Bolts pass through these bolt holes, and nuts are tightened, achieving a detachable connection between the limiting cylinder 14 and the telescopic rod 10. This method facilitates individual replacement of the limiting cylinder 14 or the telescopic rod 10 during later maintenance. The limiting holes 16 on the inner rod 11 are evenly distributed along the length of the inner rod 11, with a spacing of 5-10 mm between adjacent limiting holes 16. In this embodiment, a spacing of 8 mm between adjacent limiting holes 16 is selected.
[0023] The implementation principle of the above embodiment is as follows: the welding connection between the limiting cylinder 14 and the telescopic rod 10 provides high connection strength, ensuring the relative position stability of the limiting cylinder 14 and the telescopic rod 10 during use, which is suitable for scenarios with high requirements for structural stability; while the bolt detachable connection provides convenience for later maintenance, and can be easily disassembled and replaced when the limiting cylinder 14 or the telescopic rod 10 is damaged. The limiting holes 16 are evenly distributed with a spacing between 5-10mm. This setting can ensure precise adjustment of the length of the telescopic rod 10 without causing excessive processing difficulty due to too small a spacing of the limiting holes 16, or affecting the adjustment accuracy due to too large a spacing, allowing operators to adjust and fix the length of the telescopic rod 10 more accurately according to actual needs.
[0024] Reference Figure 4 One embodiment is shown as follows: The first connecting component 4 has a fixed housing 19 as its main structure. The fixed housing 19 has an internal cavity, and the sliding column 20 is located inside the cavity. A guide structure is provided between the sliding column 20 and the inner wall of the fixed housing 19, such as a groove on the inner wall of the fixed housing 19. A matching slider is provided on the sliding column 20, allowing the sliding column 20 to slide freely in a specific direction within the fixed housing 19. A wedge block 21 is provided at one end of the sliding column 20 by welding or integral molding. The inclined block 22 on the second connecting component 5 is located outside the fixed housing 19. The shape and size of the inclined block 22 are designed to fit precisely into the fixed housing 19. On the side of the inclined block 22 near the wedge block 21, a bevel adapted to the wedge block 21 is machined. In this embodiment, when the first connecting component 4 and the second connecting component 5 are docked, the inclined block 22 is inserted into the opening of the fixed housing 19, and the bevel on the inclined block 22 contacts the wedge block 21.
[0025] The implementation principle of the above embodiment is as follows: During the process of inserting the inclined block 22 into the fixed housing 19, the inclined surface of the inclined block 22 contacts and slides relative to the wedge block 21. Due to the action of the inclined surface, the wedge block 21 will drive the sliding column 20 to slide within the fixed housing 19. When the inclined block 22 is fully inserted into the fixed housing 19, the wedge block 21 and the inclined surface of the inclined block 22 are completely in contact, thus achieving the docking limit of the first connecting component 4 and the second connecting component 5. This method of achieving docking limit through relative sliding of inclined surfaces is simple and convenient to operate, and can quickly realize the connection between different components of the protective fence, improving installation efficiency.
[0026] Reference Figure 4 One embodiment shown is as follows: In the fixed housing 19 of the first connecting assembly 4, in addition to the sliding post 20 and the wedge block 21, a second compression spring 23 is also provided. The second compression spring 23 is sleeved on the outside of the sliding post 20, with one end tightly abutting against the inner wall of the fixed housing 19. For example, by providing a groove on the inner wall of the fixed housing 19 that matches the end of the second compression spring 23, one end of the second compression spring 23 is embedded in the groove; the other end abuts against the sliding post 20. A boss is provided on the sliding post 20, and the end of the second compression spring 23 abuts against this boss.
[0027] The implementation principle of the above embodiment is as follows: When the first connecting component 4 and the second connecting component 5 are docked, the wedge block 22 is inserted into the fixed housing 19, pushing the sliding column 20 to compress the second compression spring 23, causing the sliding column 20 to slide within the fixed housing 19. When it is necessary to separate the first connecting component 4 and the second connecting component 5, under the elastic force of the second compression spring 23, the second compression spring 23 pushes the sliding column 20 back to its initial position, thereby causing the wedge block 21 to separate from the wedge block 22, realizing the rapid disassembly of the first connecting component 4 and the second connecting component 5. This structural design ensures the flexibility and repeatability of the connecting components during use.
[0028] The working principle of this device is as follows: In the fixed frame 1, the support base 7 is stably placed by the support legs 8. After the column 6 is inserted into the support base 7, the fastening screw 9 is tightened to achieve fixation. The telescopic rod 10 of the enclosure part 3 consists of an inner rod 11 and an outer tube 12, with both ends threaded to the fixed frame 1. Pulling the pull ring 18 of the limiting post 15 can adjust the position of the inner rod 11. After releasing, the limiting post 15 is inserted into the limiting hole 16 of the inner rod 11 to fix the length. In the first connecting assembly 4 of the connecting part 2, the sliding post 20 has a wedge block 21. The inclined block 22 of the second connecting assembly 5 is inserted into the fixed housing 19. The wedge block 21 and the inclined block 22 slide relative to each other to achieve docking. The second compression spring 23 in the fixed housing 19 can drive the sliding post 20 to reset, which facilitates the separation of the components. All parts work together to achieve rapid installation, length adjustment and stable protection of the fence.
[0029] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A protective fence structure for municipal construction, characterized in that: It includes a fixed frame (1), a connecting part (2) and a enclosure part (3) adapted to the fixed frame (1); the connecting part (2) includes a first connecting component (4) and a second connecting component (5) respectively disposed on both sides of the enclosure part (3), and the enclosure part (3) is connected to the fixed frame (1) through the first connecting component (4) and the second connecting component (5).
2. The protective fence structure for municipal construction as described in claim 1, characterized in that: The fixing frame (1) includes a vertically arranged column (6) and a support base (7) connected to the column (6). The bottom of the support base (7) is provided with a foot (8). A fastening screw (9) is provided on the support base (7). The fastening screw (9) is threadedly connected to the column (6).
3. The protective fence structure for municipal construction as described in claim 1, characterized in that: The enclosure (3) includes a telescopic rod (10), which includes an inner rod (11) and an outer tube (12). The inner rod (11) can slide inside the outer tube (12). The two ends of the telescopic rod (10) are threadedly connected to the corresponding side fixing frame (1). At least one of the telescopic rods (10) is provided with a telescopic limiting component (13). The limiting component (13) includes a limiting cylinder (14) provided on the outer tube (12). The limiting cylinder (14) is provided with a sliding limiting post (15). The inner rod (11) is provided with multiple limiting holes (16). The limiting post (15) can be inserted into the limiting hole (16). The limiting post (15) is fitted with a first compression spring (17). The top of the limiting post (15) is provided with a pull ring (18).
4. The protective fence structure for municipal construction as described in claim 3, characterized in that: The limiting cylinder (14) and the telescopic rod (10) are detachably connected by welding or bolts; the limiting holes (16) are evenly distributed along the length direction of the inner rod (11), and the distance between two adjacent limiting holes (16) is 5~10mm.
5. The protective fence structure for municipal construction as described in claim 1, characterized in that: The first connecting component (4) includes a fixed housing (19), in which a sliding column (20) is provided, and a wedge block (21) is provided on the sliding column (20); the second connecting component (5) is provided with an inclined block (22) that can be inserted into the fixed housing (19), and the inclined block (22) is provided with an inclined surface that matches the wedge block (21). The wedge block (21) and the inclined block (22) slide relative to each other to realize the docking limit of the first connecting component (4) and the second connecting component (5).
6. The protective fence structure for municipal construction as described in claim 5, characterized in that: The fixed housing (19) is provided with a second compression spring (23) for driving the sliding column (20) to reset. The second compression spring (23) is sleeved on the outside of the sliding column (20), and the two ends of the second compression spring (23) abut against the inner wall of the fixed housing (19) and the sliding column (20) respectively.