一种市政道路施工围挡
By setting an extension mechanism on the main body of the construction site fence, including a secondary fence and extension pillars, the problem of fixed height of existing construction site fences is solved, and flexible height adjustment and installation stability are achieved, making it easy to reuse.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU HUAHONG MUNICIPAL GARDEN ENG CONSTR CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-17
AI Technical Summary
The existing construction site fences have a fixed height, which makes it difficult to meet different usage needs.
By setting an extension mechanism on the main body of the fence, including a secondary fence and extension pillars, the height of the fence can be adjusted and the fence can be stably installed using components such as connecting structures and positioning plates.
It enables flexible adjustment of the fence height, improves installation stability and convenience, and facilitates reuse.
Smart Images

Figure CN224514909U_ABST
Abstract
Claims
1. A municipal road construction barrier comprising a barrier body, characterised in that: The main body of the enclosure is provided with an extension mechanism (3). The main body of the enclosure includes a main enclosure (1) and columns (2) set on both sides of the main enclosure (1). The extension mechanism (3) includes a secondary enclosure (31) and an extension support (32) housed in the columns (2). The secondary enclosure (31) is installed between the opposing columns (2) and located on one side of the main enclosure (1). The extension support (32) can be extended to the top of the columns (2). The secondary enclosure (31) is installed between the extension supports (32). The main enclosure (1) and the secondary enclosure (31) are respectively connected to the corresponding columns (2) and extension supports (32) through a connecting structure (5).
2. The municipal road construction fence according to claim 1, characterized in that: Inside the column (2) and on both sides of the extension column (32), there are respectively an abutment plate (21) and an abutment sleeve (22). The abutment plate (21) is provided with a plug rod (211) inserted into the corresponding abutment sleeve (22) by a connecting spring (23). A limiting rod (4) with one end inserted into the plug rod (211) and the other end passing through the column (2) is threaded onto the abutment sleeve (22). When the abutment plate (21) and the abutment sleeve (22) approach each other, the extension column (32) abuts against the abutment plate (21). The column (2) has a closable operating port on the side wall corresponding to the abutment plate (21) and the abutment sleeve (22).
3. The municipal road construction fence according to claim 1, characterized in that: The connection structure (5) includes a main connecting plate (51) connected to both sides of the main enclosure (1) and a secondary connecting plate (52) connected to both sides of the secondary enclosure (31) via a movable spring (6). The main connecting plate (51) is inserted into the corresponding column (2); the secondary connecting plate (52) is inserted into the corresponding extension column (32).
4. The municipal road construction fence according to claim 3, characterized in that: The connecting structure (5) further includes a horizontal plate (53) fixed on the main connecting plate (51) and extending into the main enclosure (1) and a mating plate (54) fixed on the secondary connecting plate (52) and extending into the secondary enclosure (31). The horizontal plate (53) and the mating plate (54) located on the same side are positioned by a locking rod (9). The main connecting plate (51) and the secondary connecting plate (52) are housed in the corresponding main enclosure (1) and secondary enclosure (31).
5. The municipal road construction fence according to claim 1, characterized in that: The extension mechanism (3) also includes a positioning plate (33), which is movably connected to the side wall of the extension column (32) by a positioning spring (7) and can be installed outside the side wall of the extension column (32) and flush with the side wall of the column (2). The side wall of the sub-enclosure (31) is installed on the positioning plate (33); the positioning plate (33) is fixed by a fixing structure (8).
6. A municipal road construction enclosure according to claim 5, characterized in that: The fixing structure (8) includes a deformable fixing block (81) and a fixing groove (82). The fixing groove (82) is opened on the extension column (2), and the fixing block (81) is fixed on the positioning plate (33) and snapped into the fixing groove (82).
7. The municipal road construction fence according to claim 4, characterized in that: The main enclosure (1) and the secondary enclosure (31) are respectively provided with locking grooves (10) for positioning the two ends of the locking rod (9). When the main connecting plate (51) and the secondary connecting plate (52) are inserted outside, the locking rod (9) is positioned in the locking groove (10) and fixed by bolts.
8. The municipal road construction fence according to claim 7, characterized in that: The locking slot (10) is provided with a positioning slot (11) near one side of the main and secondary surrounding barriers (1, 31) for positioning the two ends of the locking rod (9), and when the main and secondary connecting plates (51, 52) are accommodated, the locking rod (9) is positioned in the positioning slot (11) and fixed by bolts.