A quick-assembly and disassembly plug-in guardrail

By using the threaded engagement of the external threaded sleeve and the internal thread, and the expansion claw of the wedge-shaped linkage block to squeeze and unfold, the problems of long installation time and easy loss of bolts in traditional guardrails are solved, realizing rapid disassembly and assembly and stable fixation, improving construction efficiency and extending service life.

CN224514903UActive Publication Date: 2026-07-17SHANXI FIRST CONSTR GROUP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI FIRST CONSTR GROUP
Filing Date
2025-08-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional guardrail installation is time-consuming, especially when installing over a large area, and the bolts and nuts are easily lost after removal, leading to increased replacement costs and affecting normal use.

Method used

The guardrail is installed quickly by using the threaded engagement of the external threaded sleeve and the internal thread in the quick-assembly and disassembly assembly, as well as the wedge-shaped linkage block to compress and unfold the expansion claw rod. The expansion claw rod is then reset and retracted by the self-rebound rotating shaft, simplifying the operation.

Benefits of technology

It significantly shortens installation and dismantling time, improves construction efficiency, enhances fixation stability, prevents railings from loosening, extends component lifespan, and reduces the risk of missing parts and corrosion damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of fixed device technology, and in particular to a quick-release and detachable socket-type guardrail. It includes a guardrail assembly with a quick-release and detachable installation component and an auxiliary component outside the quick-release and detachable installation component. This solves the problem that current construction site guardrails mostly use bolt and nut connections, requiring repeated alignment of holes and tightening of nuts during installation, which is time-consuming, especially inefficient for large-scale installations. After removal, bolts and nuts are easily lost due to their small size, increasing replacement costs and affecting the normal installation and use of the guardrail. This solution achieves quick installation of the guardrail through the threaded engagement of the external threaded sleeve and internal thread in the quick-release and detachable installation component, and the compression and unfolding of the expansion claw rod by the wedge-shaped linkage block. During disassembly, only a counter-clockwise rotation of the inner central shaft is needed, and the self-returning rotating shaft resets and retracts the expansion claw rod, significantly shortening installation and disassembly time and improving construction efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of fixed device technology, specifically relating to a quick-release and detachable socket-type guardrail. Background Technology

[0002] In scenarios such as building construction, municipal engineering, and the layout of large event venues, guardrails serve as important facilities for ensuring personnel safety and delineating areas. Their installation and fixing methods play a crucial role in the quality and safety of the project.

[0003] Patent document CN214365385U discloses a protective railing, including two symmetrically arranged sets of mounting brackets. Each mounting bracket has a protective rod mechanism installed on its inner side. The two sets of protective rod mechanisms are arranged at different heights. Each protective rod mechanism includes a mounting base fixed to the mounting bracket, a sleeve welded to the mounting base, an adjusting tube inserted into the sleeve, and a protective rod connected to the root of the adjusting tube. The adjusting tube has several sets of equidistant adjusting holes. Screws on the sleeve pass through the corresponding adjusting holes and are screwed with nuts. This utility model has a simple structure and low cost. After installation, the left and right protective rods can be adjusted up and down according to operational needs to suit regional production requirements. The spacing between the left and right protective rods can also be adjusted according to the size of pigs in different areas. The protective rods effectively reduce the swaying of pigs on the sliding track and when entering the feeding device.

[0004] The aforementioned protective bars can effectively reduce the swaying of pigs on the sliding track and when entering the feeding device. However, when using these devices, traditional protective bars are mostly fixed by welding, bolting, or one-time expansion screws. Currently, standard protective bars on construction sites mostly use bolt and nut connections. During installation, it is necessary to repeatedly align the holes and tighten the nuts, which is time-consuming and extremely inefficient, especially in large-scale installations. After dismantling, the bolts and nuts are easily lost due to their small size, which increases the cost of replacement parts and also affects the normal installation and use of the protective bars. Therefore, a new type of quick-disassembly and plug-in protective bar is needed to improve the aforementioned devices. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a quick-assembly and disassembly socket-type guardrail. It features a quick-assembly and disassembly assembly component with an external threaded sleeve and an internal threaded connection, along with a wedge-shaped linkage block that compresses and unfolds the expansion claw rod, enabling rapid installation of the guardrail and improving construction efficiency. This solves the problem that current construction site guardrails often use bolt and nut connections, requiring repeated alignment of holes and tightening of nuts during installation, which is time-consuming, especially in large-scale installations where efficiency is extremely low. Furthermore, after removal, bolts and nuts are easily lost due to their small size, increasing replacement costs and affecting the normal installation and use of the guardrail.

[0006] To achieve the goal of quickly installing guardrails and improving construction efficiency by using the threaded engagement of the external threaded sleeve and the internal thread in the quick-release installation assembly, and the squeezing and unfolding of the expansion claw rod by the wedge-shaped linkage block, the present invention provides the following technical solution: a quick-release socket-type guardrail, including a guardrail assembly, a quick-release installation assembly is provided in the guardrail assembly, and an auxiliary assembly is provided outside the quick-release installation assembly; The railing assembly includes a railing body, with multiple vertical posts fixedly connected to the lower end of the railing body, and a stable base plate fixedly connected to the lower end of each vertical post. Multiple mounting holes are provided on the outer end of the stable base plate. The quick-release assembly includes an external limiting ring, the inner wall of which is provided with internal threads, an inner central shaft is installed at the inner end of the external limiting ring, an external threaded sleeve is fixedly connected to the outer end of the inner central shaft, multiple self-rebound rotating shafts are installed at the lower end of the external limiting ring, an expansion claw rod is installed at the lower end of the self-rebound rotating shafts, and a wedge-shaped linkage block is fixedly connected to the lower end of the inner central shaft.

[0007] Furthermore, the external threaded sleeve is threadedly connected to the internal thread, and multiple expansion claw rods are arranged in a ring at equal intervals.

[0008] Furthermore, the multiple mounting holes are arranged in a rectangular pattern, and a pre-embedded sleeve is provided below each mounting hole.

[0009] Furthermore, the wedge-shaped linkage block and multiple expansion claw rods cooperate with each other, and the external limiting ring extends into the pre-embedded sleeve.

[0010] Furthermore, a top handle is fixedly connected to the upper end of the inner central shaft, and side pull rods are symmetrically fixedly connected to the upper ends of the left and right sides of the outer limiting ring.

[0011] Furthermore, the auxiliary components include a reinforcing outer plate layer, which is fixedly connected to the outer side of the expansion claw rod.

[0012] Furthermore, the outer side of the outer panel is fixedly connected with an anti-slip textured plate, and the outer side wall of the outer limiting ring is fixedly connected with a corrosion-resistant coating.

[0013] Furthermore, adjacent railing bodies are detachably connected by a connecting assembly, which includes a connecting sleeve and an inverted U-shaped connecting rod. The connecting sleeve is fixed on the side of each adjacent railing body that is close to each other. The two ends of the inverted U-shaped connecting rod are respectively inserted into the two connecting sleeves. Through the cooperation of the connecting sleeve and the inverted U-shaped connecting rod, not only is a detachable connection between the railing bodies achieved, but it can also adapt to the needs of different connection angles.

[0014] Furthermore, one end of the inverted U-shaped connecting rod passes through the connecting sleeve and is fixed with an anti-detachment plate. The anti-detachment plate fixes the inverted U-shaped connecting rod inside the connecting sleeve of one of the railing bodies to prevent it from falling off and being lost. A certain distance is left between the anti-detachment plate and the lower end of the connecting sleeve to ensure that the other end of the inverted U-shaped connecting rod can smoothly pass through the other connecting sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. In use, this utility model achieves rapid installation of guardrails by quickly disassembling and installing the external threaded sleeve and internal thread in the assembly, as well as by squeezing and unfolding the expansion claw rod by the wedge-shaped linkage block. When disassembling, it is only necessary to rotate the inner central shaft counterclockwise and use the self-returning rotating shaft to reset and retract the expansion claw rod. The operation is simple, requires no complicated tools, greatly shortens the installation and disassembly time, and improves construction efficiency.

[0016] 2. In use, this utility model increases the structural strength of the expansion claw rod by reinforcing the outer plate layer in the auxiliary components, making it less prone to deformation when it abuts against the inner wall of the pre-embedded sleeve, thus ensuring the fixing effect. The anti-slip outer textured plate increases the friction with the inner wall of the pre-embedded sleeve, further improving the stability of the guardrail fixing and effectively preventing the guardrail from loosening or shifting. The corrosion-resistant coating covering the outer wall of the external limiting ring can effectively isolate moisture, acid and alkali substances in the external environment, reduce damage to the external limiting ring and related components caused by corrosion, and extend the service life of the quick-disassembly and installation components. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the external structure of the railing assembly of this utility model; Figure 2 This is a partially truncated enlarged structural diagram of the railing assembly of this utility model. Figure 3 This is an enlarged structural diagram of the quick-assembly and disassembly assembly component of this utility model; Figure 4 This is an exploded view of the quick-assembly and disassembly assembly component of this utility model; Figure 5 This is a schematic diagram of the auxiliary component structure of this utility model; Figure 6 This is a schematic diagram of the connection component structure of this utility model.

[0018] In the diagram: 1. Railing assembly; 100. Railing body; 102. Stable base plate; 103. Mounting holes; 104. Embedded sleeve; 105. Vertical post; 2. Quick-release and installation assembly; 200. Inner central shaft; 201. Top handle; 203. External limiting ring; 204. Wedge-shaped linkage block; 205. Side tie rod; 206. External threaded sleeve; 207. Internal thread; 208. Expansion claw rod; 209. Self-rebound rotating shaft; 210. Corrosion-resistant coating; 3. Auxiliary assembly; 300. Reinforced outer plate layer; 301. Anti-slip textured plate; 4. Connecting assembly; 400. Connecting sleeve; 401. Inverted U-shaped connecting rod; 402. Anti-detachment clamping plate. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: a quick-release and installable socket-type guardrail, including a guardrail assembly 1, a quick-release and installable component 2 in the guardrail assembly 1, and an auxiliary component 3 outside the quick-release and installable component 2; The railing assembly 1 includes a railing body 100, a plurality of vertical posts 105 are fixedly connected to the lower end of the railing body 100, a stable base plate 102 is fixedly connected to the lower end of the vertical posts 105, and a plurality of mounting holes 103 are provided on the outer end of the stable base plate 102. The quick-release assembly 2 includes an external limiting sleeve 203. The inner wall of the external limiting sleeve 203 is provided with an internal thread 207. An inner central shaft 200 is installed at the inner end of the external limiting sleeve 203. An external threaded sleeve 206 is fixedly connected to the outer end of the inner central shaft 200. Multiple self-rebound rotating shafts 209 are installed at the lower end of the external limiting sleeve 203. An expansion claw rod 208 is installed at the lower end of the self-rebound rotating shaft 209. A wedge-shaped linkage block 204 is fixedly connected to the lower end of the inner central shaft 200.

[0021] like Figure 1 , Figure 3-4As shown, the external threaded sleeve 206 is threadedly connected to the internal thread 207. Multiple expansion claw rods 208 are arranged in a ring at equal intervals. Multiple mounting holes 103 are arranged in a rectangle. A pre-embedded sleeve 104 is provided below the mounting hole 103. The wedge-shaped linkage block 204 cooperates with the multiple expansion claw rods 208. The external limiting ring 203 extends into the pre-embedded sleeve 104. The upper end of the inner central shaft 200 is fixedly connected to the top handle 201. The upper ends of the left and right sides of the external limiting ring 203 are symmetrically fixedly connected to the side pull rods 205.

[0022] It should be noted that the side tie rods 205 are symmetrically fixed on the upper ends of both sides of the external limiting sleeve 203. During the installation and disassembly process, they provide additional force points for construction personnel, making it convenient to adjust the position and angle of the external limiting sleeve 203, ensuring that it is accurately inserted into the pre-embedded sleeve 104, and at the same time enhancing the overall stability of the quick-assembly and disassembly assembly component 2.

[0023] like Figure 4-5 As shown, the auxiliary component 3 includes a reinforcing outer plate layer 300, which is fixedly connected to the outer side of the expansion claw rod 208. An anti-slip outer textured plate 301 is fixedly connected to the outer side of the reinforcing outer plate layer 300, and a corrosion-resistant coating 210 is fixedly connected to the outer side wall of the outer limiting ring 203.

[0024] It should be noted that the reinforced outer plate layer 300 in auxiliary component 3 increases the structural strength of the expansion claw rod 208, making it less prone to deformation when it abuts against the inner wall of the pre-embedded sleeve 104, thus ensuring the fixing effect. The anti-slip outer textured plate 301 increases the friction with the inner wall of the pre-embedded sleeve 104, further improving the stability of the guardrail fixing and effectively preventing the guardrail from loosening or shifting. The corrosion-resistant coating 210 covers the outer wall of the outer limiting ring 203, which can effectively isolate moisture, acid and alkali substances in the external environment, reduce damage to the outer limiting ring 203 and related components caused by corrosion, and extend the service life of the quick disassembly and installation component 2.

[0025] like Figure 6 As shown, two adjacent railing bodies 100 are detachably connected by a connecting component 4. The connecting component 4 includes a connecting sleeve 400 and an inverted U-shaped connecting rod 401. The connecting sleeve 400 is fixed on the side of each adjacent railing body 100 that is close to each other. The two ends of the inverted U-shaped connecting rod 401 are respectively inserted into the two connecting sleeves 400. Through the cooperation of the connecting sleeve 400 and the inverted U-shaped connecting rod 401, not only is the detachable connection between the railing bodies 100 realized, but it can also adapt to the needs of different connection angles.

[0026] One end of the inverted U-shaped connecting rod 401 passes through the connecting sleeve 400 and is fixed with an anti-detachment plate 402. The anti-detachment plate 402 fixes the inverted U-shaped connecting rod 401 inside the connecting sleeve 400 of one of the railing bodies 100 to prevent it from falling off and being lost. A certain distance is left between the anti-detachment plate 402 and the lower end of the connecting sleeve 400 to ensure that the other end of the inverted U-shaped connecting rod 401 can be smoothly inserted into the other connecting sleeve 400.

[0027] The working principle of the above embodiment is as follows: In this solution, the pre-embedded sleeve 104 is pre-drilled on the construction ground to ensure that its position is aligned with the mounting hole 103 on the stable base plate 102. The stable base plate 102 of the railing assembly 1 is placed in the corresponding position so that the mounting hole 103 corresponds one-to-one with the pre-embedded sleeve 104. At this time, the quick-release installation assembly 2 is picked up, the outer limiting ring 203 is aligned with the mounting hole 103, and slowly inserted downwards until the outer limiting ring 203 is completely inserted into the pre-embedded sleeve 104. The worker holds the top handle 201 and rotates the inner central shaft 200 clockwise. Due to the external thread at the outer end of the inner central shaft 200, The sleeve 206 engages with the internal thread 207 on the inner wall of the outer limiting ring 203. As the inner central shaft 200 rotates, the externally threaded sleeve 206 moves downward along the internal thread 207, causing the inner central shaft 200 and the wedge-shaped linkage block 204 at its lower end to move downward together. During the downward movement, the wedge-shaped linkage block 204 gradually squeezes the expansion claw rod 208. The expansion claw rod 208 is connected to the lower end of the outer limiting ring 203 through the self-rebound rotating shaft 209. Under the compression of the wedge-shaped linkage block 204, it rotates outward and expands with the self-rebound rotating shaft 209 as the fulcrum. When the wedge-shaped linkage block 204 moves to the predetermined position... When the expansion claw rod 208 is fully extended, its outer side tightly abuts against the inner wall of the pre-embedded sleeve 104. At this time, the reinforcing outer plate layer 300 and the anti-slip outer textured plate 301 outside the expansion claw rod 208 increase the friction and contact stability with the inner wall of the pre-embedded sleeve 104, thereby achieving the limiting and fixing of the guardrail and ensuring that the guardrail assembly 1 is firmly installed on the ground. When it is necessary to remove the guardrail, the construction worker holds the top handle 201 again and rotates the inner central shaft rod 200 counterclockwise. The external threaded sleeve 206 moves upward along the internal thread 207, causing the wedge-shaped linkage block 204 to disengage from the compression of the expansion claw rod 208. After losing the external force, the self-springing shaft rotates. The elastic reset function of component 209 comes into play, pulling the expansion claw rod 208 inward to return it to its initial state, releasing the contact with the inner wall of the pre-embedded sleeve 104. At this time, the top handle 201 can be easily lifted upward to remove the quick-release installation component 2 from the pre-embedded sleeve 104 and the mounting hole 103 for reuse in other locations. Throughout the service life, the corrosion-resistant coating 210 on the outer wall of the outer limiting ring 203 can effectively resist the corrosion of water vapor, acid and alkali substances in the external environment, extend the service life of the quick-release installation component 2, and ensure that the guardrail can maintain good fixation performance after multiple disassemblies and reassemblies.

[0028] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A quick release spigot type protective barrier comprising a barrier assembly characterised in that: The railing assembly is provided with a quick-release and installation component, and an auxiliary component is provided outside the quick-release and installation component; The railing assembly includes a railing body, with multiple vertical posts fixedly connected to the lower end of the railing body, and a stable base plate fixedly connected to the lower end of each vertical post. Multiple mounting holes are provided on the outer end of the stable base plate. The quick-release assembly includes an external limiting ring, the inner wall of which is provided with internal threads. An inner central shaft is installed at the inner end of the external limiting ring, and an external threaded sleeve is fixedly connected to the outer end of the inner central shaft. Multiple self-rebound rotating shafts are installed at the lower end of the external limiting ring, and an expansion claw rod is installed at the lower end of each self-rebound rotating shaft. A wedge-shaped linkage block is fixedly connected to the lower end of the inner central shaft.

2. A quick assembly and disassembly protective fence with socket joint according to claim 1, characterized in that: The external threaded sleeve is threadedly connected to the internal thread, and the multiple expansion claw rods are arranged in a ring at equal intervals.

3. The quick assembly and disassembly of the protection fence according to claim 1, characterized in that: The mounting holes are arranged in a rectangular pattern, and a pre-embedded sleeve is provided below each mounting hole.

4. A quick assembly and disassembly protective fence with socket joint according to claim 3, characterized in that: The wedge-shaped linkage block and multiple expansion claw rods cooperate with each other, and the external limiting ring extends into the pre-embedded sleeve.

5. The quick assembly and disassembly of the protection fence according to claim 1, characterized in that: The upper end of the inner central shaft is fixedly connected to a top handle, and the upper ends of the left and right sides of the outer limiting ring are symmetrically fixedly connected to side pull rods.

6. The quick assembly and disassembly of protection fence according to claim 1, characterized in that: The auxiliary component includes a reinforcing outer plate layer, which is fixedly connected to the outer side of the expansion claw rod.

7. A quick assembly and disassembly protective fence with socket joint according to claim 6, characterized in that: An anti-slip textured plate is fixedly connected to the outer side of the reinforced outer plate layer.

8. A quick assembly and disassembly protective fence with socket joint according to claim 5, characterized in that: The outer wall of the external limiting ring is fixedly connected with a corrosion-resistant coating.

9. The quick assembly and disassembly of protection fence according to claim 1, characterized in that: The two adjacent railing bodies are detachably connected by a connecting assembly, which includes a connecting sleeve and an inverted U-shaped connecting rod. The connecting sleeve is fixed on the side of the two adjacent railing bodies that are close to each other, and the two ends of the inverted U-shaped connecting rod are respectively inserted into the two connecting sleeves.

10. A quick assembly and disassembly protective barrier with sockets according to claim 9, characterized in that: One end of the inverted U-shaped connecting rod passes through the connecting sleeve and is fixed with an anti-detachment clamping plate.