An assembled guard rail

Abstract

The present application relates to the technical field of guardrails, and particularly relates to an assembled guardrail, which comprises a stand column and a crossbeam, the stand column is 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 insertion hole, one side of the hole wall of the second insertion hole is provided with a second clamping tongue which is inwardly folded, 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 which is inwardly folded, the crossbeam transversely penetrates the first insertion hole and the second insertion hole, the ends of the first clamping tongue and the second clamping tongue respectively abut against two sides of the crossbeam; a locking gasket is inserted and assembled between the fourth side wall and the crossbeam and between the second side wall and the crossbeam, limit holes are symmetrically formed on two sides of the crossbeam, an elastic sheet is inserted and assembled in the crossbeam, the two ends of the elastic sheet are provided with positioning columns which extend out of the limit holes, and the positioning columns abut against the locking gasket. The stand column and the crossbeam adopt standardized prefabricated components, are assembled through plug-in type assembly, avoid traditional welding process, reduce transportation volume and weight, and are suitable for remote construction scenes.

Description

Technical Field

[0001] This invention relates to the field of guardrail technology, and more particularly to an assembled guardrail. Background Technology

[0002] Guardrails are facilities used to protect, isolate, or guide the flow of people and vehicles, and to prevent people or objects from accidentally falling or crossing. Guardrails are widely used in various places, including but not limited to roads, bridges, highways, railways, airports, parks, residential areas, factories, schools, stadiums, and other places.

[0003] Currently, traditional guardrails are generally constructed using welding. However, this design has several limitations: once welded, they are difficult to adjust; weld points are susceptible to corrosion, posing safety hazards and compromising aesthetics; welding requires a high level of expertise, increasing production costs. Furthermore, the complex assembly process is not only time-consuming and labor-intensive but also inefficient, failing to meet modern demands for efficiency and convenience. Summary of the Invention

[0004] The purpose of this invention is to provide an assembled guardrail that, through 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 objectives, the present invention provides an assembled guardrail, including posts and crossbeams. The posts are integrally formed by a first side wall, a second side wall, a third side wall, and a fourth side wall. The first side wall has a second through hole, and one side of the wall of the second through hole has a second latch folded inward toward the third side wall. The third side wall has a first through hole, and one side of the wall of the first through hole has a first latch folded inward toward the first side wall. The crossbeam passes transversely through the first and second through holes. The ends of the first and second latches abut against the two sides of the crossbeam, respectively. 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 opened on both sides of the crossbeam. Elastic plates are inserted inside the crossbeam, and positioning posts extending out of the limiting holes are provided at both ends of the elastic plates. The positioning posts abut against the locking washers through elastic deformation.

[0006] Preferably, the locking pad is provided with a fixing hole adapted to the positioning post, and the positioning post is embedded in the fixing hole to achieve anti-disengagement and limiting.

[0007] Preferably, one end of the locking washer is provided with a guide slope, and the guide slope is provided with a guide groove that extends in the direction of the slope and connects to the fixing hole.

[0008] Preferably, the end face of the locking washer is provided with multiple pressure contacts for pressing against the crossbeam.

[0009] Preferably, the crossbeam is fitted with two sets of covers, which cover the first through hole and the second through hole.

[0010] Preferably, the cover and the crossbeam are connected by a snap-fit ​​mechanism to enable quick assembly and disassembly.

[0011] Preferably, a retaining seat is provided on one side of the end of the cover, the retaining seat is provided with a positioning hole, and the positioning post passes through the limiting hole and the positioning hole in sequence and then abuts against the locking pad.

[0012] Preferably, the outer sides of both the second and fourth sidewalls are provided with locking caps for connecting locking pads.

[0013] Preferably, both the second and fourth sidewalls are provided with elongated holes, one side of the locking washer is provided with a cross post extending from the elongated hole, and one end of the locking cap is provided with a connecting groove that matches the cross post.

[0014] After adopting the above technical solution, the beneficial effects of the present invention are: The uprights and beams utilize standardized prefabricated components, assembled via plug-in joints, avoiding traditional welding processes, reducing transportation volume and weight, and adapting to remote construction scenarios. The ends of the first and second latches of the uprights abut against both sides of the beam, forming a longitudinal restraint. The beam, through the positioning posts at both ends of the elastic plate, abuts against locking washers, forming a lateral constraint. This enables tool-free, rapid assembly and disassembly, improving installation efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. 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 structure of Embodiment 1 of the present invention; Figure 2 This is a structural diagram of the column; Figure 3 This is a schematic diagram of the elastic sheet structure; Figure 4 This is a schematic diagram of the locking washer structure; Figure 5 This is a schematic diagram of the installation of the locking washer; Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the cap structure; Figure 8 This is a schematic diagram of the cap installation; Figure 9 This is a schematic diagram of the structure of Embodiment 3 of the present invention.

[0017] Reference numerals: 1-Post, 11-First sidewall, 12-Second sidewall, 13-Third sidewall, 14-First insertion hole, 15-Second latch, 16-Second insertion hole, 17-First latch, 18-Fourth sidewall, 19-Oblong hole; 2-Crossbeam, 21-Limiting hole; 3-Locking washer, 31-Guide slope, 32-Guide groove, 33-Fixing hole, 34-Pressure contact, 35-Cross post; 4-Elastic sheet, 41-Positioning post; 5-Cap, 51-Card holder, 52-Positioning hole; 6-Locking cap. Detailed Implementation

[0018] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to 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 practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the invention.

[0019] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the invention. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] Example 1 This embodiment provides an assembled guardrail, including a post 1 and a crossbeam 2. The post 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 arranged sequentially in the circumferential direction to form a hollow cavity structure.

[0021] like Figure 1 and Figure 2As shown, the first sidewall 11 has a second through hole 16 connecting to the cavity, and a second latch 15 bent towards the third sidewall 13 on one side of the hole wall. Conversely, the third sidewall 13 has a first through hole 14 connecting to the cavity, and a first latch 17 bent towards the first sidewall 11 on one side of the hole wall. The crossbeam 2 passes laterally through the first through hole 14 and the second through hole 16. The end of the first latch 17 abuts against the upper end face (top surface) of the crossbeam 2, and the end of the second latch 15 abuts against the lower end face (bottom surface) of the crossbeam 2, forming a bidirectional limiting structure to prevent the crossbeam 2 from moving vertically.

[0022] The widths of the first through hole 14 and the second through hole 16 are matched with the width of the crossbeam 2, using a clearance fit (tolerance ≤ 0.5mm) to ensure that the crossbeam 2 does not wobble when passing through laterally, thus improving the overall stability of the guardrail. The bending angles of the first latch 17 and the second latch 15 can be adaptively adjusted based on the height of the crossbeam 2. By increasing / decreasing the bending angle to match crossbeams 2 with different cross-sectional heights, modular expansion with compatibility can be achieved.

[0023] like Figure 3 As shown, symmetrical limiting holes 21 are opened on both sides of the crossbeam 2, and a U-shaped elastic plate 4 is inserted inside the crossbeam 2. Both ends of the elastic plate 4 are provided with positioning pins 41 extending out of the limiting holes 21.

[0024] like Figure 1 and Figure 5 As shown, locking washers 3 are inserted into the gaps between the fourth sidewall 18 and the crossbeam 2, and between the second sidewall 12 and the crossbeam 2. Figure 4 As shown, the locking washer 3 has a fixing hole 33 adapted to the positioning post 41. One end of the locking washer 3 has a guide slope 31, and the guide slope 31 has a guide groove 32 extending from the slope and communicating with the fixing hole 33, which is used to guide the positioning post 41 to slide into the fixing hole 33. The end face of the locking washer 3 has multiple pressure contact parts 34 for pressing against the crossbeam 2, which generate distributed compressive stress when in contact with the side wall of the crossbeam 2, suppressing vibration displacement. The width of the locking washer 3 matches the inner cavity width of the column 1 (the distance between the first side wall 11 and the third side wall 13), with a 0.2-0.5mm adjustment margin reserved on each side to accommodate thermal expansion and contraction deformation.

[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, and the elastic plate 4 generates elastic deformation to store energy. When the locking washer 3 moves to the point where the fixing hole 33 is coaxial with the positioning post 41, the elastic plate 4 releases its deformation, pushing the positioning post 41 into the fixing hole 33. At this time, the pressure contact part 34 presses against the inner wall of the crossbeam 2, forming a friction-fitting dual constraint.

[0026] Example 2 During use, rainwater, dust, insect remains and other debris can easily enter the inner cavity of the post 1 through the first through hole 14 and the second through hole 16, which can cause the post 1 to rust and corrode, affecting the structural strength and service life of the post 1.

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

[0028] The cover 5 and the crossbeam 2 are connected by a snap-fit ​​mechanism, allowing for quick assembly and disassembly. For example... Figure 7 As shown, a card seat 51 is provided on one side of the end of the cover 5. The card seat 51 is provided with a positioning hole 52. The positioning post 41 passes through the limiting hole 21 and the positioning hole 52 in sequence and then abuts against the locking pad 3.

[0029] like Figure 8 As shown, after the crossbeam 2 passes through the first through hole 14 and the second through hole 16 laterally, the corresponding cover 5 is fitted onto the outside of the crossbeam 2. When the cover 5 is slid, the positioning post 41 of the elastic plate 4 retracts into the inner cavity of the crossbeam 2 under the pushing force of the retainer 51, causing the elastic plate 4 to undergo 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, the locking washer 3 is inserted into the gap between the card holder 51 and the fourth side wall 18 (or the second side wall 12). As the locking washer 3 goes deeper, the guide groove 32 of the locking washer 3 contacts the end of the positioning post 41. The inclined surface of the guide groove 32 forces the positioning post 41 to retract a second time, and the elastic plate 4 stores energy and deforms again. When the positioning post 41 is coaxially aligned with the fixing hole 33, the elastic plate 4 releases its deformation, pushing the positioning post 41 into the fixing hole 33, forming a rigid constraint, and the locking of the crossbeam 2 and the cover 5 is completed.

[0031] Example 3 In the assembled guardrail structures of Embodiments 1 and 2, the locking washer 3 is disposed in the inner cavity of the post 1 to lock the positioning post 41, thereby ensuring the stability of the connection between the post 1 and the crossbeam 2. If the crossbeam 2 is damaged or needs to be replaced due to mismatch in specifications, the position of the locking washer 3 will cause great inconvenience to the replacement operation of the crossbeam 2.

[0032] When the crossbeam 2 is forcibly pulled out, the positioning post 41 will be subjected to a large tensile force. Since the locking washer 3 is confined within the cavity of the upright 1, it is difficult for it to move synchronously with the positioning post 41. Under this tensile force, it is easily deformed, cracked, or even broken, rendering both the locking washer 3 and the positioning post 41 unusable. Abnormal stress can also cause scratches on the surface of the upright 1 or crossbeam 2, leading to the peeling of coatings or paint and reduced corrosion resistance.

[0033] like Figure 9 As shown, based on Embodiment 1 or Embodiment 2 (or a combination of both), a locking cap 6 connecting the locking washer 3 is added to the outer side of the second sidewall 12 and the fourth sidewall 18. Both the second sidewall 12 and the fourth sidewall 18 have elongated holes 19. One side of the locking washer 3 has a cross post 35 extending from the elongated hole 19, and one end of the locking cap 6 has a connecting groove that matches the cross post 35. The outer edge of the locking cap 6 can cover the elongated hole 19, effectively preventing dust, rainwater, debris, etc., from entering the inner cavity of the column 1.

[0034] During installation, insert 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 protrudes from the elongated hole 19. Pick up the locking cap 6, align the connecting groove at one end of it with the cross post 35 protruding from the elongated hole 19, and then slowly press the locking cap 6 to fully insert the cross post 35 into the connecting groove, thus completing the pre-fixing of the locking washer 3.

[0035] After the crossbeam 2 is installed, push the locking cap 6 upwards (both sides can be operated simultaneously). The locking cap 6 drives the locking washer 3 to slide upwards along the elongated hole 19. The guide groove 32 of the locking washer 3 contacts the end of the positioning post 41. As the locking washer 3 continues to move upwards, the inclined surface of the guide groove 32 forces the positioning post 41 to retract into the inner cavity of the crossbeam 2, and the elastic plate 4 generates pre-compression elastic deformation. When the locking cap 6 moves to the top limit point of the elongated hole 19, the positioning post 41 is coaxially aligned with the fixing hole 33, the elastic plate 4 releases its deformation, and pushes the positioning post 41 into the fixing hole 33, forming a rigid constraint, and the locking of the crossbeam 2 is completed.

[0036] Push the locking cap 6 downwards, and the locking pad 3 moves downwards simultaneously. The positioning post 41 is squeezed by the inner wall of the fixing hole 33 and begins to retract. When the locking cap 6 moves to the bottom limit point of the elongated hole 19, the positioning post 41 completely exits the locking pad 3, the crossbeam 2 is released from constraint, and the column 1 can be pulled out laterally.

[0037] In the above three embodiments, the column 1 and the beam 2 are made of standardized prefabricated components and assembled by plug-in connection, which avoids the traditional welding process, reduces the transportation volume and weight, and is suitable for remote construction scenarios.

[0038] The embodiments described above are not exhaustive and do not limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. An assembled guardrail, comprising posts (1) and beams (2), wherein the posts (1) are integrally formed by 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 sidewall (11) is provided with a second through hole (16), and a second latch (15) folded inward toward the third sidewall (13) is provided on one side of the hole wall of the second through hole (16). The third sidewall (13) is provided with a first through hole (14), and a first latch (17) folded inward toward the first sidewall (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) laterally. The ends of the first latch (17) and the second latch (15) abut against the two sides of the crossbeam (2) respectively. Locking washers (3) are inserted between the fourth sidewall (18) and the crossbeam (2) and between the second sidewall (12) and the crossbeam (2). Limiting holes (21) are symmetrically opened on both sides of the crossbeam (2). Elastic plates (4) are inserted inside the crossbeam (2). Both ends of the elastic plates (4) are provided with positioning posts (41) extending out of the limiting holes (21). The positioning post (41) abuts against the locking washer (3) through elastic deformation. The locking washer (3) is provided with a fixing hole (33) adapted to the positioning post (41). The positioning post (41) is embedded in the fixing hole (33) to achieve anti-disengagement and limiting. One end of the locking washer (3) is provided with a guide slope (31). The guide slope (31) is provided with a guide groove (32) that extends from the slope and connects to the fixing hole (33). The end face of the locking washer (3) is provided with Multiple pressure contacts (34) are provided for the top of the crossbeam (2). The outer sides of the second side wall (12) and the fourth side wall (18) are provided with locking caps (6) for connecting locking pads (3). The second side wall (12) and the fourth side wall (18) are provided with elongated holes (19). One side of the locking pad (3) is provided with a cross post (35) extending out of the elongated hole (19). One end of the locking cap (6) is provided with a connecting groove that matches the cross post (35).

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

3. The assembled guardrail according to claim 2, characterized in that: The cover (5) and the crossbeam (2) are connected by a snap-fit ​​mechanism to enable quick assembly and disassembly.

4. The assembled guardrail according to claim 3, characterized in that: The end of the cover (5) is provided with a card seat (51), the card seat (51) is provided with a positioning hole (52), and the positioning pin (41) passes through the limiting hole (21) and the positioning hole (52) in sequence and then abuts against the locking pad (3).

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