Municipal greening protective fence capable of being flexibly adjusted
By using a linkage mechanism, a limiting groove, a spring-driven limiting rod, and a hinged triangular support structure, the problem of traditional guardrails being unable to be flexibly adjusted has been solved. This enables precise locking of guardrails at multiple positions and large-area splicing, improving the construction efficiency and stability of municipal greening projects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG MINGTU CONSTRUCTION CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional municipal greening guardrails cannot be flexibly adjusted in length, leading to increased costs and complicated construction. Furthermore, they lack modular splicing designs, making it difficult to quickly connect large green areas.
The linkage mechanism drives the sliding sleeve to slide, and the limit groove and spring-driven limit rod achieve precise locking in multiple positions. The support rod forms a hinged triangular support structure, which is spliced together with the T-shaped slider and the clasp's encircling structure to achieve flexible adjustment and unlimited extension of the guardrail.
The width and length of the guardrail can be flexibly adjusted, which improves construction efficiency and stability, adapts to the needs of different green areas, and reduces construction difficulty and cost.
Smart Images

Figure CN224244562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of guardrail technology, and in particular to a flexibly adjustable municipal greening guardrail. Background Technology
[0002] In municipal greening projects, guardrails are important facilities for protecting vegetation and separating pedestrians from green belts, and are widely used in public areas such as urban roads, parks, and squares. With the diversification and dynamic needs of urban greening layouts, guardrails need to adapt to green areas of different shapes and sizes, and at the same time, in large-area protection scenarios, they need to have convenient expansion and splicing capabilities to improve construction efficiency and resource utilization.
[0003] Currently, traditional municipal greening guardrails are mostly of fixed size, and their length cannot be flexibly adjusted according to the actual width of the green area. When facing green belts of different widths, it is necessary to customize or replace the entire set of guardrails, resulting in increased costs and complicated construction. In addition, traditional guardrails lack modular splicing design. When it is necessary to protect a large area of green space in sections, adjacent guardrails cannot be quickly connected and must be spliced by welding, which is time-consuming and labor-intensive. To address this technical problem, this application proposes a flexibly adjustable municipal greening guardrail. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a flexible adjustable municipal greening guardrail. When the two uprights are pulled or pushed, the telescopic frame drives the sliding sleeve to slide up and down along the uprights through the linkage mechanism, simultaneously changing the distance between the two uprights. The limiting grooves on the uprights are distributed at preset intervals, and in conjunction with the spring-driven limiting rod, multiple precise locking positions can be achieved to meet the width requirements in different scenarios.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A flexibly adjustable municipal greening guardrail includes two uprights. Each upright has a sliding sleeve slidably connected to its bottom outer wall. Each sliding sleeve has a limit assembly on its front inner wall. A telescopic frame is rotatably connected to the adjacent ends of each sliding sleeve. The top left and right sides of the telescopic frame are rotatably connected to the outer walls of the two uprights. A fixing ring is fixedly connected to the middle of the outer wall of the left upright. Two T-shaped sliders are slidably connected to the outer wall of the fixing ring. A splicing assembly is fixedly connected to the left ends of each T-shaped slider. A second sliding sleeve is slidably connected to the top outer walls of both uprights. One end of a support rod is rotatably connected to the right end of the second sliding sleeve on the left, and one end of a second support rod is rotatably connected to the left end of the second sliding sleeve on the right. The front middle of the second support rod is rotatably connected to the rear middle of the first support rod. The other ends of both the second and first support rods are rotatably connected to the outer walls of the uprights.
[0007] Furthermore, the limiting assembly includes limiting rods located on the inner walls of the front sides of the two sliding sleeves, the outer walls of the two limiting rods are slidably connected to the inner walls of the two sliding sleeves, the outer walls of the two limiting rods are fixedly connected to fixing plates, and the outer walls of the two limiting rods are provided with springs.
[0008] Furthermore, one end of each of the two springs is connected to the front end of the fixed plate, and the other end of each of the two springs is connected to the inner wall of the sliding sleeve.
[0009] Furthermore, each of the two uprights has a limiting groove at its front end, and the outer wall of each of the two limiting rods is disposed within the limiting groove at the front end of the two uprights.
[0010] Furthermore, the outer wall of the fixed ring is provided with a groove, and both T-shaped sliders are slidably connected in the groove provided on the outer wall of the fixed ring.
[0011] Furthermore, the splicing assembly includes a first sleeve and a second sleeve located at the left ends of the two T-shaped sliders. The right end of the first sleeve is fixedly connected to the left end of the front T-shaped slider, and the right end of the second sleeve is fixedly connected to the left end of the rear T-shaped slider. A first connecting plate is fixedly connected to the left end of the first sleeve, and a second connecting plate is fixedly connected to the left end of the second sleeve.
[0012] Furthermore, the first connecting plate and the second connecting plate are connected by bolts and nuts.
[0013] Furthermore, baffles are fixedly connected to the top of both uprights, and base plates are fixedly connected to the bottom of both uprights.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, when the two uprights are pulled or pushed, the telescopic frame drives the sliding sleeve one to slide up and down along the uprights through the linkage mechanism, and simultaneously changes the distance between the two uprights. The limiting grooves on the uprights are distributed according to the preset spacing. With the help of the spring-driven limiting rod, multiple precise locking positions can be achieved to meet the width requirements in different scenarios and avoid the applicability limitations of traditional fixed-size guardrails. The top support rod one and support rod two form a hinged triangular support structure, which automatically adjusts the angle with the change of the upright spacing to ensure the overall stability of the guardrail during the adjustment process.
[0016] 2. In this utility model, the groove on the outer wall of the fixed ring allows the T-shaped slider to slide radially and rotate around the upright, driving the first and second clamps to flexibly align with the adjacent uprights. The first and second clamps clamp the adjacent uprights through the ring-shaped structure, and then form a rigid splice by bolting the first and second connecting plates. The protection length can be extended indefinitely, which is suitable for the segmented protection needs of large-area green areas and significantly improves the construction efficiency and flexibility of municipal greening projects. Attached Figure Description
[0017] Figure 1 A three-dimensional view of a flexibly adjustable municipal greening guardrail proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the fixing plate structure of a flexibly adjustable municipal greening guardrail proposed in this utility model.
[0019] Figure 3 This is a schematic diagram of a T-shaped slider structure for a flexibly adjustable municipal greening guardrail proposed in this utility model.
[0020] Legend:
[0021] 1. Base plate; 2. Upright pole; 3. Sliding sleeve one; 4. Limiting rod; 5. Fixing plate; 6. Spring; 7. Limiting groove; 8. Telescopic frame; 9. Sliding sleeve two; 10. Support rod one; 11. Support rod two; 12. Baffle; 13. Fixing ring; 14. Slide groove; 15. T-shaped slider; 16. Sleeve one; 17. Connecting plate one; 18. Sleeve two; 19. Connecting plate two. Detailed Implementation
[0022] 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.
[0023] Reference Figures 1-3 This utility model provides an embodiment of a flexibly adjustable municipal greening guardrail, comprising two uprights 2. Each upright 2 has a sliding sleeve 3 slidably connected to its outer bottom wall. Each sliding sleeve 3 has a limit rod 4, a fixing plate 5, and a spring 6 on its front inner wall. A telescopic frame 8 is rotatably connected to the adjacent ends of each sliding sleeve 3. The top left and right sides of the telescopic frame 8 are rotatably connected to the outer walls of the two uprights 2. A fixing ring 13 is fixedly connected to the middle of the outer wall of the left upright 2. Two T-shaped... Slider 15, the left ends of the two T-shaped sliders 15 are fixedly connected to sleeve 16, sleeve 2 18, connecting plate 17 and connecting plate 2 19. The top side of the outer wall of the two uprights 2 is slidably connected to sleeve 2 9. The right end of the left sleeve 2 9 is rotatably connected to one end of support rod 10. The left end of the right sleeve 2 9 is rotatably connected to one end of support rod 2 11. The front middle of the support rod 2 11 is rotatably connected to the rear middle of the support rod 10. The other ends of support rod 2 11 and support rod 10 are rotatably connected to the outer wall of the uprights 2.
[0024] Specifically, by pulling or pushing the two uprights 2 horizontally, the distance between them changes. When the uprights 2 move in opposite directions, the telescopic frame 8 in the middle unfolds, causing the sliding sleeve 3 to slide upwards along the uprights 2. When the uprights 2 move in opposite directions, the telescopic frame 8 retracts, and the sliding sleeve 3 slides downwards along the uprights 2. During the movement of the uprights 2, the top sliding sleeve 9 slides synchronously. The left sliding sleeve 9 is connected to the uprights 2 via support rod 10, and the right sliding sleeve 9 is connected to the uprights 2 via support rod 11. The two support rods are hinged in the middle to form a linkage structure. This structure can move with the uprights. 2. The angle is automatically adjusted according to the spacing changes. The overall stability is enhanced by the triangular support principle, which prevents the uprights 2 from tilting or swaying. When multiple guardrails need to be spliced, the two sets of guardrails to be spliced are placed parallel to each other, so that the adjacent uprights 2 are close together. Rotate the T-shaped slider 15 on the left guardrail fixing ring 13 to drive the first clamp 16 and the second clamp 18 to rotate around the uprights 2, so that the first clamp 16 and the second clamp 18 are put on the adjacent uprights 2. Then, the connecting plate 17 and the second connecting plate 19 are fastened together with bolts and nuts to complete the rigid splicing of the two sets of guardrails.
[0025] Reference Figures 1-3 The two sliding sleeves 3 have limiting rods 4 located on the inner walls of their front sides. The outer walls of the two limiting rods 4 are slidably connected to the inner walls of the sliding sleeves 3. The outer walls of the two limiting rods 4 are fixedly connected to fixing plates 5. The outer walls of the two limiting rods 4 are provided with springs 6. One end of each spring 6 is connected to the front end of the fixing plate 5, and the other end of each spring 6 is connected to the inner wall of the sliding sleeves 3. The front ends of the two uprights 2 are provided with limiting grooves 7. The outer walls of the two limiting rods 4 are set in the limiting grooves 7 provided at the front ends of the two uprights 2. The outer wall of the fixing ring 13 is provided with a sliding groove 14. The two T-shaped sliders 15 are slidably connected to the inner walls of the two uprights 2. Inside the groove 14 opened on the outer wall of the fixed ring 13, there are two sleeves 16 and 18 located at the left ends of the two T-shaped sliders 15. The right end of the sleeve 16 is fixedly connected to the left end of the front T-shaped slider 15, and the right end of the sleeve 18 is fixedly connected to the left end of the rear T-shaped slider 15. The left end of the sleeve 16 is fixedly connected to the connecting plate 17, and the left end of the sleeve 18 is fixedly connected to the connecting plate 19. The connecting plate 17 and the connecting plate 19 are connected by bolts and nuts. The top ends of the two uprights 2 are fixedly connected to the baffles 12, and the bottom ends of the two uprights 2 are fixedly connected to the base plate 1.
[0026] Specifically, the guardrail is moved to the edge of the green area to be protected. The base plate 1 contacts the ground, ensuring the guardrail stands stably due to its flat structure. Simultaneously, the left and right limiting rods 4 are pulled outwards. At this time, the fixing plate 5 moves with the limiting rod 4, compressing the spring 6 sleeved on the limiting rod 4. When the limiting rod 4 completely disengages from the limiting groove 7 at the front end of the upright 2, the sliding sleeve 3 is no longer constrained and can slide freely along the outer wall of the upright 2. After adjusting to the target spacing, the limiting rod 4 is released. The compressed spring 6 returns to its original shape due to elasticity, pushing the fixing plate 5 and the limiting rod 4 back to their original positions, causing the limiting rod 4 to re-insert into the limiting groove 7 of the upright 2, locking the sliding sleeve 3 and locking the spacing of the upright 2. The limiting grooves 7 on the upright 2 are distributed according to the preset spacing, allowing for flexible selection of the limiting position based on the width of the green area, thus achieving precise adjustment of the guardrail length.
[0027] Working principle: After placing the guardrail in the appropriate position, pull both limiting rods 4 simultaneously, causing the fixing plate 5 to compress the spring 6, pulling the limiting rods 4 out of the uprights 2, thereby releasing the limitation on the sliding sleeve 3. Then, pull the two uprights 2 in opposite or disjointed directions. Through the telescopic frame 8, the sliding sleeve 3 can move up or down. At this time, under the action of the support rod 10 and the support rod 2 11, the sliding sleeve 2 9 can slide on the outer wall of the uprights 2, improving the stability of the guardrail. When adjusted to the appropriate position, the limitation is released. The force applied by the positioning rod 4, under the action of the spring 6, can make the positioning rod 4 spring into the corresponding positioning groove 7 on the upright 2, thereby limiting the length of the guardrail. When multiple guardrails need to be spliced, the guardrails are placed side by side, and then the first clamp 16 and the second clamp 18 on the fixing ring 13 are rotated to put the first clamp 16 and the second clamp 18 onto the upright 2 of another guardrail. Then, the connecting plate 17 and the second connecting plate 19 are fixed together with bolts and nuts to complete the splicing between the two guardrails.
[0028] 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 flexibly adjustable municipal greening protection fence, characterized in that: It includes two uprights (2), and each of the two uprights (2) has a sliding sleeve (3) slidably connected to the bottom side of its outer wall. Each of the two sliding sleeves (3) has a limit assembly on its front inner wall. Each of the two sliding sleeves (3) has a telescopic frame (8) rotatably connected to one end of each other. The top left and right sides of the telescopic frame (8) are respectively rotatably connected to the outer walls of the two uprights (2). A fixing ring (13) is fixedly connected to the middle of the outer wall of the left upright (2). Two T-shaped sliders (15) are slidably connected to the outer wall of the fixing ring (13). The left end of the slider (15) is fixedly connected to a splicing component. The top side of the outer wall of the two uprights (2) is slidably connected to a second sliding sleeve (9). The right end of the second sliding sleeve (9) on the left side is rotatably connected to one end of a first support rod (10). The left end of the second sliding sleeve (9) on the right side is rotatably connected to one end of a second support rod (11). The front middle part of the second support rod (11) is rotatably connected to the rear middle part of the first support rod (10). The other ends of the second support rod (11) and the first support rod (10) are rotatably connected to the outer wall of the upright (2).
2. The flexibly adjustable municipal greening protection fence according to claim 1, characterized in that: The limiting assembly includes limiting rods (4) located on the inner walls of the front side of the two sliding sleeves (3). The outer walls of the two limiting rods (4) are slidably connected to the inner walls of the sliding sleeves (3). The outer walls of the two limiting rods (4) are fixedly connected to fixing plates (5). The outer walls of the two limiting rods (4) are provided with springs (6).
3. The flexibly adjustable municipal greening protection fence according to claim 2, characterized in that: One end of each of the two springs (6) is connected to the front end of the fixed plate (5), and the other end of each of the two springs (6) is connected to the inner wall of the sliding sleeve (3).
4. The flexibly adjustable municipal greening protection fence according to claim 2, characterized in that: Both of the two uprights (2) have a limiting groove (7) at their front ends, and the outer walls of the two limiting rods (4) are set in the limiting grooves (7) at the front ends of the two uprights (2).
5. The flexibly adjustable municipal greening protection fence according to claim 1, characterized in that: The outer wall of the fixed ring (13) is provided with a groove (14), and the two T-shaped sliders (15) are slidably connected in the groove (14) on the outer wall of the fixed ring (13).
6. The flexibly adjustable municipal greening protection fence according to claim 1, characterized in that: The splicing assembly includes a first sleeve (16) and a second sleeve (18) located at the left end of the two T-shaped sliders (15). The right end of the first sleeve (16) is fixedly connected to the left end of the front T-shaped slider (15), and the right end of the second sleeve (18) is fixedly connected to the left end of the rear T-shaped slider (15). The left end of the first sleeve (16) is fixedly connected to a first connecting plate (17), and the left end of the second sleeve (18) is fixedly connected to a second connecting plate (19).
7. The flexibly adjustable municipal greening protection fence according to claim 6, characterized in that: The connecting plate one (17) and the connecting plate two (19) are connected by bolts and nuts.
8. The flexibly adjustable municipal greening protection fence according to claim 1, characterized in that: Both of the two uprights (2) are fixedly connected to the top of a baffle (12), and both of the two uprights (2) are fixedly connected to the bottom of a base plate (1).