Assembled guardrail

Abstract

The invention relates to the technical field of guardrails, in particular to an assembled guardrail which comprises a stand column and a cross beam, and the stand column is defined by a first side wall, a second side wall, a third side wall and a fourth side wall; the first side wall is provided with a second insertion hole, one side of the hole wall of the second insertion hole is provided with a second clamping tongue folded inwards, the third side wall is provided with a first insertion hole, one side of the hole wall of the first insertion hole is provided with a first clamping tongue folded inwards, and the cross beam transversely penetrates through the first insertion hole and the second insertion hole. The end of the first clamping tongue and the end of the second clamping tongue abut against the two sides of the cross beam respectively. Locking gaskets are inserted between the fourth side wall and the cross beam and between the second side wall and the cross beam, limiting holes are symmetrically formed in the two sides of the cross beam, an elastic piece is inserted into the cross beam, positioning columns extending out of the limiting holes are arranged at the two ends of the elastic piece, and the positioning columns abut against the locking gaskets. Standard prefabricated assemblies are adopted for the stand columns and the cross beams, the stand columns and the cross beams are assembled in a plug-in mode, a traditional welding process is avoided, the transportation size and weight are reduced, and remote construction scenes are adapted.

Description

Technical Field

[0001] The present invention relates to the technical field of guardrails, and in particular to an assembled guardrail. Background Art

[0002] Guardrails are used to protect, isolate, or guide pedestrian and vehicle traffic, as well as to prevent people or objects from accidentally falling or crossing. They are widely used in various places, including but not limited to roads, bridges, highways, railways, airports, parks, residential areas, factories, schools, and stadiums.

[0003] Traditional guardrails are commonly constructed using welding. However, this design has multiple limitations: once welded, they are difficult to adjust, weld points are susceptible to corrosion, creating potential safety hazards and compromising the aesthetics. Welding also requires high professional skills, increasing production costs. Furthermore, the complex assembly process is not only time-consuming and labor-intensive, but also leads to low assembly efficiency, making it difficult to meet modern demands for efficiency and convenience. Summary of the Invention

[0004] The purpose of the present invention is to provide an assembled guardrail, which, through a modular design, decomposes the guardrail into multiple components that are easy to assemble and disassemble, thereby simplifying the installation process and improving assembly efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides an assembled guardrail, comprising a column and a crossbeam, wherein the column is integrally enclosed by a first side wall, a second side wall, a third side wall and a fourth side wall; the first side wall is provided with a second through-hole, one side of the hole wall of the second through-hole is provided with a second tongue folded inwardly toward the third side wall, the third side wall is provided with a first through-hole, one side of the hole wall of the first through-hole is provided with a first tongue folded inwardly toward the first side wall, the crossbeam transversely passes through the first through-hole and the second through-hole, the end portions of the first tongue and the second tongue respectively abut on both sides of the crossbeam; locking washers are inserted between the fourth side wall and the crossbeam, and between the second side wall and the crossbeam, limiting holes are symmetrically provided on both sides of the crossbeam, an elastic sheet is inserted inside the crossbeam, and positioning columns extending out of the limiting holes are provided at both ends of the elastic sheet, and the positioning columns press against the locking washers through elastic deformation.

[0006] Preferably, the locking gasket is provided with a fixing hole adapted to fit the positioning column, and the positioning column is embedded in the fixing hole to achieve anti-slip limiting.

[0007] Preferably, a guiding slope is provided at one end of the locking gasket, and a guiding groove extending in the direction of the slope and communicating with the fixing hole is provided on the guiding slope.

[0008] Preferably, the end surface of the locking gasket is provided with a plurality of pressing portions for pressing against the crossbeam.

[0009] Preferably, two sets of covers are mounted on the crossbeam, and the covers cover the first through hole and the second through hole.

[0010] Preferably, the cover and the crossbeam are connected by snapping to achieve quick assembly and disassembly.

[0011] Preferably, a holder is provided on one side of the end of the cover, and the holder is provided with a positioning hole. The positioning column passes through the limiting hole and the positioning hole in sequence and then abuts against the locking gasket.

[0012] Preferably, the outer sides of the second side wall and the fourth side wall are both provided with locking caps connected to locking washers.

[0013] Preferably, the second side wall and the fourth side wall are both provided with oblong holes, one side of the locking gasket is provided with a cross column extending from the oblong hole, and one end of the locking cap is provided with a connecting groove matching the cross column.

[0014] After adopting the above technical solution, the beneficial effects of the present invention are: The columns and beams utilize standardized prefabricated components and are assembled through plug-in assembly, eliminating traditional welding processes, reducing transportation volume and weight, and making them suitable for remote construction scenarios. The ends of the column's first and second latches abut against the sides of the beam to create a longitudinal limit. The beam's locating posts at each end of the elastic sheet abut against locking washers to create a lateral restraint. This allows for quick, tool-free assembly and disassembly, improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic structural diagram of embodiment 1 of the present invention; Figure 2 It is a structural diagram of the column; Figure 3 Schematic diagram of the structure of the elastic sheet; Figure 4 Schematic diagram of the structure of the locking gasket; Figure 5 The figure is a schematic diagram of the installation of the locking gasket; Figure 6 This is a structural diagram of embodiment 2 of the present invention; Figure 7 Schematic diagram of the structure of the cover; Figure 8 Schematic diagram of the installation of the cover; Figure 9 This is a structural diagram of embodiment 3 of the present invention.

[0017] Figure markings: 1-column, 11-first side wall, 12-second side wall, 13-third side wall, 14-first insertion hole, 15-second latch, 16-second insertion hole, 17-first latch, 18-fourth side wall, 19-long round hole; 2-cross beam, 21-limiting hole; 3-locking gasket, 31-guide slope, 32-guide groove, 33-fixing hole, 34-pressing part, 35-cross column; 4-elastic sheet, 41-positioning column; 5-cover, 51-seat, 52-positioning hole; 6-locking cap. DETAILED DESCRIPTION

[0018] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present invention by illustrating examples of the present invention.

[0019] The directional words appearing in the following description refer to the directions shown in the drawings and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0020] Example 1 This embodiment provides an assembled guardrail, comprising a column 1 and a beam 2. The column 1 is formed by a first side wall 11, a second side wall 12, a third side wall 13 and a fourth side wall 18, which are enclosed in sequence along the circumferential direction to form a hollow cavity structure.

[0021] like Figure 1 and Figure 2As shown, the first side wall 11 is provided with a second through-hole 16 communicating with the cavity, and a second latch 15 is provided on one side of the hole wall, bending toward the third side wall 13. Conversely, the third side wall 13 is provided with a first through-hole 14 communicating with the cavity, and a first latch 17 is provided on one side of the hole wall, bending toward the first side wall 11. The crossbeam 2 extends transversely through the first and second through-holes 14, 16. The end of the first latch 17 abuts against the upper end surface (top surface) of the crossbeam 2, while the end of the second latch 15 abuts against the lower end surface (bottom surface) of the crossbeam 2, forming a bidirectional retaining structure that prevents vertical movement of the crossbeam 2.

[0022] The widths of the first and second insertion holes 14, 16 match the width of the crossbeam 2, employing a clearance fit (tolerance ≤ 0.5mm) to ensure smooth deflection of the crossbeam 2 when it is inserted horizontally, enhancing the overall stability of the guardrail. The bending angles of the first and second latches 17, 15 can be adaptively adjusted based on the height of the crossbeam 2. By increasing or decreasing the bending angle, the system can accommodate crossbeams of varying cross-sectional heights, achieving modular compatibility.

[0023] like Figure 3 As shown, limiting holes 21 are symmetrically provided on both sides of the crossbeam 2 , a U-shaped elastic piece 4 is inserted into the crossbeam 2 , and positioning posts 41 extending out of the limiting holes 21 are provided at both ends of the elastic piece 4 .

[0024] like Figure 1 and Figure 5 As shown, the gap between the fourth side wall 18 and the cross beam 2 and the gap between the second side wall 12 and the cross beam 2 are both inserted with locking washers 3. Figure 4 As shown, the locking washer 3 is provided with a fixing hole 33 adapted to accommodate the positioning post 41. A guide ramp 31 is provided at one end of the locking washer 3. A guide groove 32 extends along the guide ramp and connects to the fixing hole 33, guiding the positioning post 41 into the fixing hole 33. The end surface of the locking washer 3 is provided with multiple pressure contact portions 34 for contacting the crossbeam 2. When in contact with the sidewalls of the crossbeam 2, distributed compressive stress is generated to suppress vibration displacement. The width of the locking washer 3 matches the inner width of the column 1 (the distance between the first sidewall 11 and the third sidewall 13), with a 0.2-0.5mm adjustment margin reserved on each side to accommodate thermal expansion and contraction.

[0025] When the locking washer 3 is inserted, the guide slope 31 contacts the positioning post 41, forcing the positioning post 41 to retract into the inner cavity of the crossbeam 2. The elastic piece 4 generates elastic deformation and stores energy. When the locking washer 3 moves to the point where the fixing hole 33 is coaxial with the positioning post 41, the elastic piece 4 releases its deformation, pushing the positioning post 41 into the fixing hole 33. At this time, the pressure contact portion 34 presses against the inner wall of the crossbeam 2, forming a dual friction and interlocking constraint.

[0026] Example 2 During use of the guardrail in Example 1, debris such as rainwater, dust, and insect debris can easily penetrate the inner cavity of the column 1 through the first and second insertion holes 14 and 16, thereby causing the column 1 to rust and corrode, affecting the structural strength and service life of the column 1.

[0027] like Figure 6 As shown, based on Example 1, this embodiment adds two sets of covers 5 to the crossbeam 2 to meet the sealing and protection requirements of the column 1. The shape and size of the covers 5 should be compatible with the first and second through-holes 14, 16, and the corresponding parts of the crossbeam 2. For example, the edges of the covers 5 should be able to closely fit the inner diameters of the through-holes (first and second through-holes 14, 16), and the inner diameter of the covers 5 should match the outer diameter of the crossbeam 2, ensuring that the covers 5 can be securely mounted on the crossbeam 2 and completely cover the through-holes without leaving any gaps.

[0028] The cover 5 and the crossbeam 2 are connected by snaps to achieve quick assembly and disassembly. Figure 7 As shown, a seat 51 is provided at one end of the cover 5 , and a positioning hole 52 is provided in the seat 51 . The positioning column 41 passes through the limiting hole 21 and the positioning hole 52 in sequence and then abuts against the locking gasket 3 .

[0029] like Figure 8 As shown, after the crossbeam 2 is laterally inserted through the first and second insertion holes 14 and 16, the corresponding cover 5 is fitted onto the outside of the crossbeam 2. As the cover 5 is slid in, the positioning post 41 of the elastic plate 4 is pushed back toward the interior of the crossbeam 2 by the pressure of the retaining seat 51, causing the elastic plate 4 to undergo a pre-compression deformation. When the positioning post 41 is coaxially aligned with the positioning hole 52, the elastic plate 4 releases its deformation, pushing the positioning post 41 into the positioning hole 52, completing the axial pre-fixation of the cover 5 and forming a preliminary anti-loosening constraint.

[0030] Subsequently, locking washer 3 is inserted into the gap between retaining seat 51 and fourth side wall 18 (or second side wall 12). As locking washer 3 is inserted deeper, its guide groove 32 contacts the end of positioning post 41. The inclined surface of guide groove 32 forces positioning post 41 to retract a second time, causing elastic sheet 4 to accumulate energy and deform again. When positioning post 41 is coaxially aligned with fixing hole 33, elastic sheet 4 releases its deformation, pushing positioning post 41 into fixing hole 33, forming a rigid constraint, and the crossbeam 2 and cover 5 are locked.

[0031] Example 3 In the assembled guardrail structures of Examples 1 and 2, locking washers 3 are disposed within the inner cavity of upright posts 1 to lock positioning posts 41, thereby ensuring the stability of the connection between upright posts 1 and crossbeams 2. If crossbeams 2 are damaged or require replacement due to mismatched specifications, the location of locking washers 3 greatly inconveniences the replacement process.

[0032] When the crossbeam 2 is forcibly pulled out, the positioning post 41 is subjected to a significant tensile force. Since the locking washer 3 is confined within the inner cavity of the column 1, it is difficult for it to move synchronously with the positioning post 41. Under the tensile force, it is easy for the locking washer 3 to deform, crack, or even break, rendering the locking washer 3 and the positioning post 41 inoperable. Abnormal force can also cause scratches on the surface of the column 1 or crossbeam 2, causing the coating or paint to fall off and reducing corrosion resistance.

[0033] like Figure 9 As shown, based on Example 1 or Example 2 (or a combination of both), a locking cap 6 connected to the locking washer 3 is additionally provided on the outside of the second side wall 12 and the fourth side wall 18. Both the second side wall 12 and the fourth side wall 18 are provided with an oblong hole 19. A cross post 35 extending from the oblong hole 19 is provided on one side of the locking washer 3. One end of the locking cap 6 is provided with a connecting groove that mates with the cross post 35. The outer edge of the locking cap 6 covers the oblong hole 19. This design effectively prevents dust, rainwater, and debris from entering the inner cavity of the column 1.

[0034] During installation, place the locking washer 3 with the cross post 35 into the inner cavity of the column 1 and adjust its position so that the cross post 35 extends from the oblong hole 19. Pick up the locking cap 6, align the connecting groove at one end of it with the cross post 35 extending from the oblong hole 19, and then slowly press the locking cap 6 to fully insert the cross post 35 into the connecting groove, completing the pre-fixation of the locking washer 3.

[0035] After beam 2 is installed, push locking cap 6 upward (both sides can be operated simultaneously). This forces locking washer 3 to slide upward along oblong hole 19. Guide groove 32 of locking washer 3 contacts the end of locating post 41. As locking washer 3 continues to move upward, the inclined surface of guide groove 32 forces locating post 41 to retract into the interior of beam 2, causing elastic plate 4 to undergo preloaded elastic deformation. When locking cap 6 reaches the limit point at the top of oblong hole 19, locating post 41 aligns coaxially with fixing hole 33. Elastic plate 4 releases its deformation, pushing locating post 41 into fixing hole 33, forming a rigid constraint and locking beam 2.

[0036] Push the locking cap 6 downward, the locking gasket 3 moves downward synchronously, the positioning column 41 is squeezed by the inner wall of the fixing hole 33 and begins to retract. When the locking cap 6 moves to the limit point at the bottom end of the oblong hole 19, the positioning column 41 completely withdraws from the locking gasket 3, the crossbeam 2 is released from the constraint, and can be pulled out horizontally from the column 1.

[0037] In the above three embodiments, the columns 1 and the beams 2 are made of standardized prefabricated components and are assembled through plug-in type, avoiding the traditional welding process, reducing the transportation volume and weight, and adapting to remote construction scenarios.

[0038] While the embodiments of the present invention are described above, these embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Clearly, many modifications and variations can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to make good use of the present invention and its modifications and uses. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An assembled guardrail, comprising a column (1) and a crossbeam (2), wherein the column (1) is formed by integrally enclosing a first side wall (11), a second side wall (12), a third side wall (13) and a fourth side wall (18); characterized in that: The first side wall (11) is provided with a second through hole (16), a second latch (15) folded inwardly toward the third side wall (13) is provided on one side of the hole wall of the second through hole (16), the third side wall (13) is provided with a first through hole (14), a first latch (17) folded inwardly toward the first side wall (11) is provided on one side of the hole wall of the first through hole (14), the crossbeam (2) passes through the first through hole (14) and the second through hole (16) transversely, the first latch (17) and the second latch The ends of the latch tongue (15) respectively abut against both sides of the crossbeam (2); locking washers (3) are inserted between the fourth side wall (18) and the crossbeam (2), and between the second side wall (12) and the crossbeam (2); limiting holes (21) are symmetrically provided on both sides of the crossbeam (2); an elastic sheet (4) is inserted inside the crossbeam (2); positioning columns (41) extending from the limiting holes (21) are provided at both ends of the elastic sheet (4); and the positioning columns (41) press against the locking washers (3) through elastic deformation.

2. The assembled guardrail according to claim 1, characterized in that: The locking washer (3) is provided with a fixing hole (33) adapted to the positioning column (41), and the positioning column (41) is embedded in the fixing hole (33) to achieve anti-slip limiting.

3. The assembled guardrail according to claim 2, characterized in that: One end of the locking washer (3) is provided with a guide slope (31), and the guide slope (31) is provided with a guide groove (32) extending in the direction of the slope and communicating with the fixing hole (33).

4. The assembled guardrail according to claim 3, characterized in that: The end surface of the locking gasket (3) is provided with a plurality of pressing portions (34) for pressing against the crossbeam (2).

5. The assembled guardrail according to claim 1, characterized in that: Two sets of covers (5) are mounted on the crossbeam (2), and the covers (5) cover the first through hole (14) and the second through hole (16).

6. The assembled guardrail according to claim 5, characterized in that: The cover (5) and the crossbeam (2) are connected by snapping, thereby achieving quick assembly and disassembly.

7. The assembled guardrail according to claim 6, characterized in that: A holder (51) is provided at one end of the cover (5), and a positioning hole (52) is provided on the holder (51). The positioning column (41) passes through the limiting hole (21) and the positioning hole (52) in sequence and then abuts against the locking gasket (3).

8. The assembled guardrail according to claim 1, characterized in that: The outer sides of the second side wall (12) and the fourth side wall (18) are both provided with locking caps (6) connected to the locking gaskets (3).

9. The assembled guardrail according to claim 8, characterized in that: The second side wall (12) and the fourth side wall (18) are both provided with an oblong hole (19), one side of the locking gasket (3) is provided with a cross column (35) extending from the oblong hole (19), and one end of the locking cap (6) is provided with a connecting groove matching the cross column (35).

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