A foldable temporary protective fence for construction

Abstract

This utility model discloses a foldable temporary protective fence for construction, relating to the technical field of temporary protective fences for construction. The utility model includes two protective fences and further includes: a folding mechanism located on the side of the two protective fences facing away from each other; and an anti-collision mechanism located on the front of the two protective fences. The anti-collision mechanism is used to prevent pedestrians and vehicles from colliding with the protective fences at night. Specifically, by gripping the handle and pulling the sliding rod upwards, the limiting plate stretches the spring, the sliding rod moves the wedge block and the synchronizing rod upwards, releasing the engagement with the wedge block, pulling the fixing rod to rotate, the hinge rod rotates around the pivot, and the sliding rod slides along the groove to its limit position, completing the folding and unfolding process. This reduces the space occupied during transportation and the space required for storage, reduces manual handling costs, and improves the efficiency of construction material turnover.

Description

Technical Field

[0001] This utility model belongs to the technical field of temporary protective fences for building construction, and in particular relates to a foldable temporary protective fence for building construction. Background Technology

[0002] Temporary guardrails are crucial for ensuring on-site safety during construction. They are widely used in scenarios such as pit edges, temporary passageway boundaries, protection under high-altitude operations, and isolation of hazardous work areas. Their core function is to form a safety barrier through physical separation, guiding personnel and vehicles to pass through in a standardized manner and preventing accidents such as falls and collisions. Most existing temporary guardrails for construction are one-piece fixed structures with a large overall volume. They also require a lot of vehicle space for transportation, and the quantity transported at one time is limited, significantly increasing transportation costs. During construction breaks or after the project is completed, storage and retrieval also require a lot of space and time, resulting in reduced site utilization and increased difficulty in material management. Therefore, a foldable temporary guardrail for construction is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a foldable temporary protective fence for construction. By setting up a folding mechanism, specifically, by grasping the handle and sliding the first sliding rod upwards, the limiting plate stretches the spring, the first sliding rod drives the second wedge block and the synchronous rod upwards, releasing the engagement with the first wedge block, pulling the fixed rod to rotate, the hinge rod rotates around the pivot, and the second sliding rod slides along the groove to its limit position, completing the folding and unfolding process. This reduces the space occupied during transportation and the site requirements for storage, while also reducing manual handling costs and improving the efficiency of construction material turnover. It solves the problems of existing temporary protective fences, most of which are one-piece fixed structures with large overall volume, requiring significant vehicle space for transportation, limited quantity transported per trip, and significantly increasing transportation costs. Furthermore, storage during construction breaks or after project completion also requires considerable space and time, leading to reduced site utilization and increased difficulty in material management.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a foldable temporary guardrail for construction, comprising two guardrails and: a folding mechanism located on the opposite side of the two guardrails for folding them; an anti-collision mechanism located on the front of the two guardrails to prevent pedestrians and vehicles from colliding with the guardrails at night; the folding mechanism includes a locking component located on the opposite side of the two guardrails for locking them, the locking component including two fixing rods located on the left and right sides of the two guardrails respectively, with a vertical rod installed on the front of the right-side fixing rod; the folding mechanism also includes a rotating component located between the two guardrails for rotating them, the fixing rods being made of thickened steel plates and vertically welded to the bottom edges of the left and right sides of the two guardrails to provide stable support for the mechanism, the right-side fixing rod having a vertical rod welded vertically to the center of its front, serving as the core carrier for locking.

[0006] Furthermore, two wedge-shaped blocks are installed on the front of the vertical rod, and a sliding rod is slidably connected to the top of the fixed rod on the right side. Springs are wound around the outer surface of each sliding rod, and a limiting plate is installed on the outer surface of each sliding rod. The tops of both wedge-shaped blocks are wedge-shaped, and the two wedge-shaped blocks are symmetrically arranged around the center point of the vertical rod. The sliding rod is made of solid round steel with a chrome-plated surface, possessing good wear resistance and sliding properties. A return spring is wound around the outer surface of the sliding rod, and the spring selection matches the preload required for locking the guardrail. A circular limiting plate is welded to the outer surface of the sliding rod near the top. The diameter of the limiting plate is larger than the diameter of the sliding hole at the top of the fixed rod, which effectively limits the sliding stroke of the sliding rod and prevents excessive spring compression leading to elastic failure.

[0007] Furthermore, the bottom of the limiting plate is fixedly connected to the top of the spring, the bottom of the spring is fixedly connected to the top of the fixing rod on the right side, a handle is installed on the top of the slide rod, and a synchronizing rod is installed on the outer surface of the slide rod. The limiting plate is circular, and both limiting plates limit the slide rod. The limiting plate adopts a circular structure design, and the two limiting plates are respectively fitted onto the slide rod. In addition to limiting the stroke of the slide rod, it also guides the spring, preventing the spring from shifting laterally during compression and reset, and ensuring stable transmission of elastic force.

[0008] Furthermore, two wedge-shaped blocks are provided inside the fixed rod on the right side. The top of the top wedge-shaped block is fixedly connected to the bottom of the slide rod, and the bottom wedge-shaped block is fixedly connected to the bottom of the synchronizing rod. The bottoms of the two wedge-shaped blocks are wedge-shaped, and one side of each wedge-shaped block is a snap-fit ​​surface with one side of each wedge-shaped block. The bottoms of the two wedge-shaped blocks are machined into wedge-shaped structures that fit the wedge-shaped blocks. The wedge-shaped surfaces are precision polished to ensure a tight fit with the wedge-shaped surfaces of the wedge-shaped blocks. One side of each wedge-shaped block forms a precise snap-fit ​​surface with one side of each wedge-shaped block. During snap-fit, reliable locking is achieved through the self-locking characteristics of the wedge-shaped surfaces.

[0009] Furthermore, the rotating assembly includes two hinge rods, which are rotatably connected to the inner sides of the two guardrails respectively. A pivot is rotatably connected to the center of the hinge rod on the left side. Slide rods are installed on the opposite sides of the two hinge rods. Slide grooves are provided on both guardrails. The hinge rod on the left side is rotatably connected to the hinge rod via the pivot. The slide rod on the right side slides in the slide groove on the left side, and the slide rod on the left side slides in the slide groove on the right side. The two hinge rods are semi-circular, and the two slide grooves are oblique. The inner frames of the two guardrails are provided with corresponding oblique slide grooves. The inclination angle of the slide grooves is adapted to the rotation trajectory of the hinge rods, providing a guide path for the slide rods.

[0010] Furthermore, the anti-collision mechanism includes two adhesive frames, both of which are installed on the front of the two guardrails. Reflective strips are installed inside each of the adhesive frames, and support plates are installed at the bottom of each of the two fixed poles. The reflective strips are made of lattice reflective material, possessing wide-angle reflective characteristics, which can efficiently reflect irradiated light at night, forming a conspicuous warning light strip. Support plates are welded to the bottom of each of the two fixed poles. The support plates are made of rubber material with anti-slip textures and have an overall trapezoidal structure, which increases the contact area with the ground and improves the coefficient of friction through the anti-slip textures. This effectively resists lateral external force impacts, preventing the guardrails from tipping over on uneven ground or in wet environments, further enhancing the stability of the device.

[0011] This utility model has the following beneficial effects:

[0012] 1. This utility model, by setting up a folding mechanism, specifically involves holding the handle and pulling the slide rod one upwards, the limiting plate stretching the spring, the slide rod one driving the wedge block two and the synchronous rod upwards, releasing the engagement with the wedge block one, pulling the fixed rod to rotate, the hinge rod rotating around the pivot, and the slide rod two sliding along the slide groove to the limit position, completing the folding and unfolding. This reduces the space occupation rate during transportation and the space requirements during storage, and also reduces the cost of manual handling, while improving the efficiency of construction material turnover.

[0013] 2. This utility model incorporates an anti-collision mechanism, specifically by installing reflective strips within the adhesive frame on the front of the guardrail. When illuminated at night, these reflective strips reflect strong light, providing a clear warning to pedestrians and vehicles and reducing the risk of collisions. Simultaneously, the support plate at the bottom of the fixed pole increases the contact area and friction with the ground, enhancing the stability of the guardrail and preventing it from tipping over. This reduces safety hazards at nighttime construction sites and ensures both construction and traffic safety.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the synchronizing rod structure of this utility model;

[0018] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0019] Figure 4 This is a schematic diagram of the reflective strip structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the slide groove structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the rotating component structure of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Guardrail; 2. Folding mechanism; 21. Locking assembly; 211. Fixing rod; 212. Vertical rod; 213. Wedge block one; 214. Slide rod one; 215. Spring; 216. Limiting plate; 217. Handle; 218. Wedge block two; 219. Synchronizing rod; 22. Rotating assembly; 221. Hinge rod; 222. Rotating shaft; 223. Slide rod two; 224. Slide groove; 3. Anti-collision mechanism; 311. Adhesive frame; 312. Reflective strip; 313. Support plate. 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 scope of protection of the present utility model.

[0025] Please see Figures 1-6As shown, this utility model is a foldable temporary guardrail for construction, including two guardrails 1, and further including: a folding mechanism 2, which is located on the side of the two guardrails 1 away from each other, and is used to fold the two guardrails 1; and an anti-collision mechanism 3, which is located on the front of the two guardrails 1, and is used to prevent pedestrians and vehicles from colliding with the guardrails 1 at night; the folding mechanism 2 includes a locking component 21, which is located on the side of the two guardrails 1 away from each other, and is used to lock the two guardrails 1. The locking component 21 includes two fixing rods 211, which are respectively located on the two guardrails. On the left and right sides of guardrail 1, a vertical rod 212 is installed on the front of the fixed rod 211 on the right side. The folding mechanism 2 includes a rotating component 22, which is located between the two guardrails 1 and is used to rotate the two guardrails 1. Two wedge-shaped blocks 213 are installed on the front of the vertical rod 212. A sliding rod 214 is slidably connected to the top of the fixed rod 211 on the right side. Springs 215 are wound around the outer surface of the sliding rod 214, and limit plates 216 are installed on the outer surface of the sliding rod 214. The tops of the two wedge-shaped blocks 213 are wedge-shaped, and the two wedge-shaped blocks 213 are symmetrically arranged with the center point of the vertical rod 212 as the center. The bottom of the limit plate 216 is connected to the spring. The top of spring 215 is fixedly connected to the top of the fixed rod 211 on the right side. A handle 217 is installed on the top of the slide rod 214, and a synchronizing rod 219 is installed on the outer surface of the slide rod 214. The limiting plate 216 is circular, and both limiting plates 216 limit the slide rod 214. Two wedge blocks 218 are provided inside the fixed rod 211 on the right side. The top of the top wedge block 218 is fixedly connected to the bottom of the slide rod 214, and the bottom wedge block 218 is fixedly connected to the bottom of the synchronizing rod 219. The bottom of the two wedge blocks 218 is wedge-shaped, and one side of each wedge block 218 is wedge-shaped with the two wedge blocks 213. One side of the shape is the snap-fit ​​surface; the rotating component 22 includes two hinge rods 221, which are rotatably connected to the inner side of the two guardrails 1 respectively. The center of the hinge rod 221 on the left is rotatably connected to a pivot 222. Slide rods 223 are installed on the sides of the two hinge rods 221 that are far apart from each other. Slide grooves 224 are opened on the two guardrails 1. The hinge rod 221 on the left is rotatably connected to the hinge rod 221 through the pivot 222. The slide rod 223 on the right slides in the slide groove 224 on the left and the slide rod 223 on the left slides in the slide groove 224 on the right. The two hinge rods 221 are semi-arc-shaped, and the two slide grooves 224 are oblique.

[0026] The anti-collision mechanism 3 includes two adhesive frames 311, both of which are installed on the front of the two guardrails 1. Reflective strips 312 are installed inside the two adhesive frames 311, and support plates 313 are installed at the bottom of the two fixed rods 211. Specifically, reflective strips 312 are installed inside the adhesive frames 311 on the front of the guardrail 1. When illuminated at night, the reflective strips can reflect strong light, providing a clear warning to pedestrians and vehicles and reducing the risk of collision. At the same time, the support plates 313 at the bottom of the fixed rods 211 increase the contact area and friction with the ground, improving the stability of the guardrail 1 and preventing it from tipping over and failing. This reduces safety hazards at the construction site at night and ensures construction safety and traffic safety. Specifically, by holding the handle 217 and pulling the sliding rod 214 upward, the limiting plate 216 stretches the spring 215, and the sliding rod 214 drives the wedge block 218 and the synchronous rod 219 to move upward, releasing the engagement with the wedge block 213. Pulling the fixed rod 211 to rotate causes the hinge rod 221 to rotate around the pivot 222, and the slide rod 223 slides along the slide groove 224 to the limit position, completing the folding and unfolding. This reduces the space occupation during transportation and the site requirements for storage, while also reducing the cost of manual handling and improving the efficiency of construction material turnover.

[0027] A specific application of this embodiment is as follows: In use, the guardrail 1 can first be moved to the required construction location. Then, by holding the handle 217, the slide bar 214 is pulled upwards. Since the limiting plate 216 is fixedly connected to the outer surface of the slide bar 214, and the bottom of the limiting plate 216 is fixed to the top of the spring 215, while the bottom of the spring 215 is fixedly connected to the top of the fixing rod 211, when the slide bar 214 moves upwards, it will drive the limiting plate 216 to move upwards, thereby stretching the spring 215. At this time, as the slide bar 214 moves upwards, it will also drive the wedge block 218 and the synchronizing rod 219 to move upwards. Simultaneously, this will cause the two wedge blocks 218 at the bottom to move upward. After the two wedge blocks 218 move upward, the engagement between the two wedge blocks 1 213 and the two wedge blocks 218 is released. Then, the right-side fixed rod 211 can be pulled to rotate. At this time, the two hinge rods 221 will rotate within the two guardrails 1, and the two hinge rods 221 will perform circular motion around the pivot 222. At the same time, the right-side sliding rod 223 will slide in the left-side sliding groove 224, and the left-side sliding rod 223 will slide in the right-side sliding groove 224. The two sliding rods 223 will move away from each other, and at the same time, the sliding rods 223 will slide along the sliding groove 224 to their limit position. The folding and unfolding are completed in time, ensuring that the support plate 313 is firmly attached to the ground. During nighttime construction, reflective strips 312 can be attached to the inside of the adhesive frame 311. The reflective strips 312 reflect light under illumination, alerting pedestrians and vehicles to avoid collisions. When storage is required, the user can first rotate the right-side guardrail 1 180 degrees. This will push the right-side guardrail 1, causing the vertical bar 212 to move, and simultaneously moving the two wedge blocks 213. Since the top of wedge block 213 is wedge-shaped and the bottom of wedge block 218 is wedge-shaped, when wedge block 213 moves... During movement, it inserts into the fixed rod 211 on the left, causing the inclined surface of wedge block 218 to press against the inclined surface of wedge block 213, causing wedge block 213 to move upward. When wedge block 213 moves upward, it can drive slide rod 214 and synchronous rod 219 to move, which in turn causes slide rod 214 to move the limiting plate 216 upward and stretch spring 215. When the inclined surface of wedge block 218 and the inclined surface of wedge block 213 are no longer in contact, wedge block 218 is reset under the elastic action of spring 215, thereby locking the two wedge blocks 213 to complete the storage, reducing the space occupied and facilitating transportation and storage.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A foldable temporary protective fence for construction, comprising two protective fences (1), characterized in that, Also includes: Folding mechanism (2), the folding mechanism (2) is set on the side of the two guardrails (1) that are far apart from each other, the folding mechanism (2) is used to fold the two guardrails (1); A collision avoidance mechanism (3) is provided on the front of the two guardrails (1); the collision avoidance mechanism (3) is used to prevent pedestrians and vehicles from colliding with the guardrails (1) at night; The folding mechanism (2) includes a locking component (21), which is located on the side of the two guardrails (1) that are far apart from each other. The locking component (21) is used to lock the two guardrails (1). The locking component (21) includes two fixing rods (211), which are respectively located on the left and right sides of the two guardrails (1). The fixing rod (211) on the right side has a vertical rod (212) installed on its front.

2. The foldable temporary protective fence for construction as described in claim 1, characterized in that, The folding mechanism (2) includes a rotating component (22) which is disposed between two guardrails (1) and is used to rotate the two guardrails (1).

3. A foldable temporary protective fence for construction as described in claim 2, characterized in that, Two wedge-shaped blocks (213) are installed on the front of the vertical rod (212). A sliding rod (214) is slidably connected to the top of the fixed rod (211) on the right side. Springs (215) are wound around the outer surface of the sliding rod (214). Limiting plates (216) are installed on the outer surface of the sliding rod (214). The tops of the two wedge blocks (213) are wedge-shaped, and the two wedge blocks (213) are symmetrically arranged with the center point of the vertical rod (212) as the center.

4. A foldable temporary protective fence for construction as described in claim 3, characterized in that, The bottom of the limiting plate (216) is fixedly connected to the top of the spring (215), the bottom of the spring (215) is fixedly connected to the top of the right-side fixing rod (211), a handle (217) is installed on the top of the slide rod (214), and a synchronizing rod (219) is installed on the outer surface of the slide rod (214). The limiting plate (216) is circular, and both limiting plates (216) are limited by the sliding rod (214).

5. A foldable temporary protective fence for construction as described in claim 4, characterized in that, The fixed rod (211) located on the right side has two wedge blocks (218) inside. The top of the wedge block (218) located at the top is fixedly connected to the bottom of the slide rod (214), and the bottom of the wedge block (218) located at the bottom is fixedly connected to the bottom of the synchronizing rod (219). Among them, the bottom of the two wedge blocks (218) is wedge-shaped, and one side of the wedge shape of the two wedge blocks (218) is a snap-fit ​​surface with one side of the wedge shape of the two wedge blocks (213).

6. A foldable temporary protective fence for construction as described in claim 2, characterized in that, The rotating assembly (22) includes two hinge rods (221), which are rotatably connected to the inner sides of the two guardrails (1). A pivot (222) is rotatably connected to the center of the hinge rod (221) on the left side. A slide rod (223) is installed on the side of the two hinge rods (221) that are far apart from each other. A slide groove (224) is provided on the two guardrails (1). The hinge rod (221) on the left side is rotatably connected to the hinge rod (221) through the pivot (222). The slide rod (223) on the right side slides in the slide groove (224) on the left side. The slide rod (223) on the left side slides in the slide groove (224) on the right side. Among them, the two hinge rods (221) are semi-arc-shaped, and the two slides (224) are obliquely shaped.

7. A foldable temporary protective fence for construction as described in claim 1, characterized in that, The anti-collision mechanism (3) includes two adhesive frames (311), both of which are installed on the front of the two guardrails (1). Reflective strips (312) are installed inside the two adhesive frames (311), and support plates (313) are installed at the bottom of the two fixing rods (211).

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