Detachable guardrail folding hinge prevents mistaken unlocking

Abstract

The utility model discloses detachable guardrail folding hinge prevents mistaken opening lock tongue, including guardrail no.

Description

Technical Field

[0001] This utility model relates to the field of guardrail technology, and in particular to a detachable guardrail folding hinge anti-accidental unlocking latch. Background Technology

[0002] Guardrails are primarily used for safety isolation, preventing people or vehicles from accidentally entering dangerous areas; regulating traffic order and clearly delineating road and pedestrian spaces; cushioning collision impacts and reducing the risk of injury in accidents; and through diverse designs, they can blend into the surrounding environment and enhance overall aesthetics. Furthermore, guardrails have various uses in specific application scenarios. For example, on construction sites, guardrails are used to enclose dangerous areas to prevent workers from accidentally entering; during high-altitude operations, guardrails prevent people and objects from falling; and in industrial facilities, guardrails are used to protect high-traffic areas shared by pedestrians and forklifts, as well as sensitive work areas.

[0003] Currently, most detachable guardrails on the market use hinge connections. While this facilitates on-site assembly and disassembly, it still presents certain problems in practical use: the locking structure of traditional guardrail hinges is relatively simple. When subjected to vibration or accidental impact, the locking tongue can easily open unintentionally, leading to hinge failure, decreased guardrail stability, and safety hazards. Furthermore, some foldable guardrails still require complete disassembly before transport, increasing the workload for workers and reducing the efficiency of repeated use. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a detachable guardrail folding hinge to prevent accidental unlocking.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a detachable guardrail folding hinge anti-accidental unlocking latch, including a guardrail one, a guardrail two provided on one side of the guardrail one, a hinge one fixedly connected to the surface of the guardrail one near the guardrail two, a hinge two fixedly connected to the guardrail two near the hinge one, a lock cylinder fixedly connected to the top of the hinge one near the rotating hole, a rotating hole for the lock cylinder to rotate and connect on the hinge two, and an anti-accidental unlocking latch mechanism provided on the hinge one.

[0006] As a further description of the above technical solution:

[0007] The anti-accidental unlocking latch mechanism includes a cavity formed in the inner wall of the rotating hole near the top. The inner wall of the cavity is slidably connected to the latch. The lock cylinder has a groove adapted to the latch. The inner cavity of the cavity is provided with a return spring connected to the latch.

[0008] As a further description of the above technical solution:

[0009] A latching rod is detachably connected to the top of the latching tongue near the return spring. A latching groove is provided on the top of the hinge for the latching rod to slide and limit. A positioning plate is detachably connected to the outer contour of the latching rod near the bottom. A positioning element is provided on the side of the positioning plate away from the latching rod.

[0010] As a further description of the above technical solution:

[0011] The positioning component includes a limiting sliding connection adjustment rod, an adjustment block is fixedly connected to the top of the adjustment rod, a limiting ring is detachably connected to the outer contour of the adjustment rod near the bottom, and positioning holes for the limiting ring to engage are symmetrically opened on the top of the hinge.

[0012] As a further description of the above technical solution:

[0013] A rotating block is fixedly connected to the top of the locking rod, and a bolt is fixedly connected to the bottom of the locking rod. A threaded hole adapted to the bolt is provided on the locking tongue.

[0014] As a further description of the above technical solution:

[0015] The outer contour of the adjusting rod is provided with an external thread, and the inner wall of the limiting ring is provided with an internal thread that matches the external thread.

[0016] This utility model has the following beneficial effects:

[0017] Compared with existing technologies, this detachable guardrail folding hinge anti-accidental opening locking tongue, through the set hinge one, hinge two and anti-accidental opening locking tongue mechanism, before the guardrail is used, hinge one and hinge two are assembled through the anti-accidental opening locking tongue mechanism, and then hinge one and hinge two are installed on guardrail one and guardrail two respectively by bolts. Moreover, guardrail one and guardrail two can be folded without complicated disassembly and assembly.

[0018] This utility model can also be easily disassembled. When in use, the elastic locking tongue is engaged in the groove opened on the outer contour of the lock cylinder, so that the locking tongue is closed, thereby achieving the purpose of preventing accidental opening of the locking tongue and increasing the practicality of the guardrail equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall main structure of the device according to this utility model;

[0020] Figure 2 This utility model Figure 1 A magnified structural diagram at point A;

[0021] Figure 3This is a cross-sectional view of hinge one and hinge two of this utility model;

[0022] Figure 4 This utility model Figure 3 A magnified structural diagram at point B.

[0023] Legend:

[0024] 1. Guardrail 1; 2. Guardrail 2; 3. Hinge 1; 4. Hinge 2; 5. Lock cylinder; 6. Rotating hole; 7. Anti-accidental opening lock tongue mechanism; 8. Cavity; 9. Lock tongue; 10. Groove; 11. Return spring; 12. Snap-fit ​​rod; 13. Snap-fit ​​groove; 14. Positioning plate; 15. Adjusting block; 16. Adjusting rod; 17. Limiting ring; 18. Positioning hole; 19. Rotating block. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Reference Figure 1-4 The detachable guardrail folding hinge anti-accidental unlocking latch provided by this utility model includes a guardrail 1, a guardrail 2 on one side of the guardrail 1, a hinge 3 fixedly connected to the surface of the guardrail 1 near the guardrail 2, a hinge 4 fixedly connected to the guardrail 2 near the hinge 3, a lock cylinder 5 fixedly connected to the top of the hinge 3 near the rotating hole 6, a rotating hole 6 for the lock cylinder 5 to rotate and connect on the hinge 4, and an anti-accidental unlocking latch mechanism 7 provided on the hinge 3.

[0027] Before using the guardrail, hinge 3 and hinge 4 are assembled using the anti-accidental opening locking tongue mechanism 7. Then, hinge 3 and hinge 4 are installed on guardrail 1 and guardrail 2 respectively using bolts. This allows guardrail 1 and guardrail 2 to be folded and disassembled during use. Furthermore, the anti-accidental opening locking tongue mechanism 7 keeps the locking tongue 9 closed during use, preventing accidental opening and thus increasing the practicality of the equipment.

[0028] The anti-accidental opening locking mechanism 7 includes a cavity 8 formed in the inner wall of the rotating hole 6 near the top. A locking tongue 9 is slidably connected to the inner wall of the cavity 8. A groove 10 adapted to the locking tongue 9 is formed on the lock cylinder 5. A return spring 11 connected to the locking tongue 9 is provided in the inner cavity of the cavity 8. A locking rod 12 is detachably connected to the top of the locking tongue 9 near the return spring 11. A locking groove 13 for the locking rod 12 to be slidably connected is formed at the top of the hinge 3. A positioning plate 14 is detachably connected to the outer contour of the locking rod 12 near the bottom. A positioning element is provided on the side of the positioning plate 14 away from the locking rod 12.

[0029] Before equipment assembly, the locking tongue 9 is moved by the moving positioning plate 14, which drives the locking rod 12 to move the locking tongue 9 into the cavity 8. The locking tongue 9 then presses the return spring 11. The positioning plate 14 is then positioned using the positioning component. When the equipment needs to be assembled, the rotating hole 6 on hinge 2 4 is connected to the lock cylinder 5 on hinge 1 3. Then, hinge 1 3 and hinge 2 4 are fixed to guardrail 1 1 and guardrail 2 2 respectively using bolts. The positioning component on the positioning plate 14 is then removed. The elasticity generated by the pressed return spring 11 then drives the locking tongue 9 to engage in the groove 10, making the locking tongue 9 closed and preventing accidental opening. At this time, the positioning plate 14 is positioned again using the positioning component.

[0030] The positioning component includes an adjusting rod 16 with a limiting sliding connection. An adjusting block 15 is fixedly connected to the top of the adjusting rod 16. A limiting ring 17 is detachably connected to the outer contour of the adjusting rod 16 near the bottom. The top of the hinge 3 is symmetrically provided with positioning holes 18 for the limiting ring 17 to engage. A rotating block 19 is fixedly connected to the top of the engaging rod 12. A bolt is fixedly connected to the bottom of the engaging rod 12. A threaded hole adapted to the bolt is provided on the locking tongue 9. An external thread is provided on the outer contour of the adjusting rod 16. An internal thread adapted to the external thread is provided on the inner wall of the limiting ring 17.

[0031] By moving the adjusting block 15 upward, the adjusting rod 16 moves upward, thereby causing the adjusting rod 16 to move upward near the limiting ring 17 on the bottom outer contour. This causes the limiting ring 17 to move out of the positioning hole 18 near the locking groove 13. Then, pulling the adjusting block 15 moves the positioning plate 14, and then the limiting ring 17 is locked into the positioning hole 18 away from the locking groove 13. This allows the positioning plate 14 to be effectively positioned after movement, preventing it from being moved by the locking tongue 9 driven by the return spring 11, improving the practicality of the equipment during use. After 1 is damaged, the operator disassembles hinge 3 and hinge 4, then rotates the rotating block 19 to drive the locking rod 12 to rotate, so that the bolt at the bottom of the locking rod 12 moves out of the threaded hole on the locking tongue 9. Then the locking tongue 9 is removed, and finally the return spring 11 is replaced. The adjusting rod 16 is passed through the positioning plate 14 and slidably connected to the positioning plate 14. Then the limiting ring 17 is threadedly connected to the adjusting rod 16. The adjusting block 15 and the limiting ring 17 can make the adjusting rod 16 and the positioning plate 14 slide and limit the connection.

[0032] The working process is as follows: Before the equipment is assembled, the locking tongue 9 is moved by the moving positioning plate 14 to drive the locking rod 12 to move the locking tongue 9 into the cavity 8, thereby pressing the return spring 11 through the locking tongue 9. Then, the positioning plate 14 is positioned by the positioning component. When the equipment needs to be assembled, the rotating hole 6 on the hinge 2 4 is connected to the lock cylinder 5 on the hinge 1 3. Then, the hinge 1 3 and hinge 2 4 are fixed to the guardrail 1 1 and guardrail 2 2 respectively by bolts. Then, the positioning component on the positioning plate 14 is removed. Then, the elasticity generated by the pressed return spring 11 drives the locking tongue 9 to engage into the groove 10, so that the locking tongue 9 is closed, achieving the purpose of preventing the locking tongue 9 from being opened accidentally.

Claims

1. A detachable guardrail with a folding hinge to prevent accidental unlocking, comprising a guardrail one (1), and a guardrail two (2) provided on one side of the guardrail one (1), characterized in that: A hinge 1 (3) is fixedly connected to the side of the guardrail 1 (1) near the guardrail 2 (2). A hinge 2 (4) is fixedly connected to the side of the guardrail 2 (2) near the hinge 1 (3). A lock cylinder (5) is fixedly fixed to the top of the hinge 1 (3). A rotating hole (6) is provided on the hinge 2 (4) for the lock cylinder (5) to rotate and connect. The lock cylinder (5) is located on the top of the hinge 1 (3) near the rotating hole (6). An anti-accidental opening lock tongue mechanism (7) is also provided on the hinge 1 (3).

2. The detachable guardrail folding hinge anti-accidental unlocking latch according to claim 1, characterized in that: The anti-accidental opening locking tongue mechanism (7) includes a cavity (8) opened in the rotating hole (6) near the top inner wall. The inner wall of the cavity (8) is slidably connected to the locking tongue (9). The lock cylinder (5) is provided with a groove (10) adapted to the locking tongue (9). The inner cavity of the cavity (8) is provided with a return spring (11) connected to the locking tongue (9).

3. The detachable guardrail folding hinge anti-accidental unlocking latch according to claim 2, characterized in that: A snap-fit ​​rod (12) is detachably connected to the top of the latch (9) near the return spring (11). A snap-fit ​​groove (13) is provided on the top of the hinge (3) for the snap-fit ​​rod (12) to be slidably connected. A positioning plate (14) is detachably connected to the outer contour of the snap-fit ​​rod (12) near the bottom. A positioning element is provided on the side of the positioning plate (14) away from the snap-fit ​​rod (12).

4. The detachable guardrail folding hinge anti-accidental unlocking latch according to claim 3, characterized in that: The positioning component includes a limiting sliding connection adjustment rod (16), an adjustment block (15) is fixedly connected to the top of the adjustment rod (16), a limiting ring (17) is detachably connected to the outer contour of the adjustment rod (16) near the bottom, and a positioning hole (18) is symmetrically opened on the top of the hinge (3) for the limiting ring (17) to be engaged.

5. The detachable guardrail folding hinge anti-accidental unlocking latch according to claim 3, characterized in that: The top of the snap-fit ​​rod (12) is fixedly connected to a rotating block (19), the bottom of the snap-fit ​​rod (12) is fixedly connected to a bolt, and the locking tongue (9) is provided with a threaded hole that matches the bolt.

6. The detachable guardrail folding hinge anti-accidental unlocking latch according to claim 4, characterized in that: The outer contour of the adjusting rod (16) is provided with an external thread, and the inner wall of the limiting ring (17) is provided with an internal thread that matches the external thread.

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