Telescopic pedestrian crossing guardrail

Abstract

The telescopic pedestrian crossing guardrail comprises a main rod, an auxiliary rod, a stretching mechanism and a fixing mechanism, the stretching mechanism comprises a spring piece, a rotating frame, a protective net, a first spring, a sliding frame, a rolling shaft and an auxiliary assembly, and the auxiliary assembly comprises a second spring, a connecting plate and a fixing frame. The fixing mechanism comprises a pressing piece, a roller, a third spring and a positioning frame, under the mutual cooperation effect of the mechanisms, the device automatically shrinks, manual operation is omitted, the deploying and retracting efficiency is improved, and the device is particularly suitable for emergency scenes or areas where the devices are frequently used; an integrated closed structure is formed, seamless protection is achieved, and pedestrians are prevented from passing through gaps.

Description

Technical Field

[0001] This utility model relates to the field of crosswalk guardrail technology, specifically a retractable pedestrian crosswalk guardrail. Background Technology

[0002] Retractable pedestrian crossing barriers are a type of flexible traffic facility typically used in urban roads, busy intersections, or densely populated pedestrian areas to improve traffic safety. They are designed to allow for adjustments in length or shape to better manage pedestrian traffic and flow.

[0003] The protective netting attached to the traditional pedestrian crossing railings requires manual unfolding and retraction, which is inefficient and labor-intensive.

[0004] Secondly, if there are gaps at the ends of the protective net, pedestrians may cross them, posing a safety hazard. Furthermore, the structure is unstable and frequently shifts during use, affecting traffic order.

[0005] Finally, if the position of the rotating frame is not fixed after the protective net is deployed, the rotation of the rotating frame will cause the protective net to retract, and the loosening of the rotating frame will cause the protective net to droop, resulting in the failure of protection. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the shortcomings of the existing technology, this utility model provides a retractable pedestrian crossing guardrail to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a retractable pedestrian crossing guardrail, comprising a main pole, a secondary pole, a tensioning mechanism, and a fixing mechanism. The tensioning mechanism includes a spring plate, a rotating frame, a protective net, a first spring, a sliding frame, a roller, and auxiliary components. The spring plate is installed inside the main pole and is connected to the rotating frame. One end of the protective net is fixedly installed on the rotating frame and is slidably connected to the roller. The first spring is fixedly installed inside the main pole, and its other end is fixedly connected to the sliding frame. The sliding frame is installed inside the main pole and is slidably connected to the main pole. The roller is installed on the sliding frame and is rotatably connected to the sliding frame. The auxiliary components include a second spring, a connecting plate, and a fixing frame. The connecting plate is fixedly installed at one end of the protective net. The second spring is fixedly installed on the connecting plate, and its other end is fixedly connected to the fixing frame. The fixing frame is installed on the connecting plate and is slidably connected to the connecting plate and connected to the secondary pole.

[0010] Preferably, the fixing mechanism includes a pressing element, a roller, a third spring, and a positioning frame. The pressing element is mounted on the positioning frame and slidably connected to the roller. The positioning frame is mounted on the main rod and cooperates with the rotating frame. The roller is mounted on the positioning frame and rotatably connected to the positioning frame. The third spring is fixedly mounted inside the positioning frame.

[0011] In a further preferred embodiment, a fixing rod is provided on the main rod, the spring plate is fixedly connected to the fixing rod, the spring plate is provided with an insertion hole, and the rotating frame is connected to the insertion hole to facilitate the control of the rotating frame.

[0012] In a further preferred embodiment, the rotating frame is provided with a first insertion rod and a second insertion rod, which are respectively connected to the insertion hole and the positioning frame to facilitate the rotation and fixation of the rotating frame.

[0013] In a further preferred embodiment, the rotating frame is provided with a pressure-bearing groove, and the main rod is provided with a pressure-bearing plate. The pressure-bearing plate is connected to the pressure-bearing groove to facilitate the stable operation of the spring sheet.

[0014] In a further preferred embodiment, the secondary rod is provided with a fitting plate and a locking hole, the fitting plate being connected to the connecting plate and the locking hole being connected to the fixing frame, which facilitates the fixing of the protective net.

[0015] In a further preferred embodiment, the pressing component has a sliding groove inside, the positioning frame has a positioning hole, the roller slides in the sliding groove, and the positioning hole is connected to the main rod to facilitate the operation of the positioning frame.

[0016] In a further preferred embodiment, the main rod is provided with a positioning block, the positioning frame is provided with a sliding hole, the positioning block is connected to the positioning hole, and the sliding hole is connected to the second insertion rod, which facilitates the operation of the fixing mechanism.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a retractable pedestrian crossing guardrail, which has the following beneficial effects:

[0019] This invention features a tensioning mechanism. Through the coordinated action of components such as spring plates, rotating frames, protective nets, first springs, sliding frames, rollers, and auxiliary components, the device automatically retracts, eliminating manual operation and improving deployment and withdrawal efficiency. It is particularly suitable for emergency scenarios or areas with high frequency of use.

[0020] In this utility model, by setting auxiliary components, under the mutual cooperation of components such as the second spring, connecting plate and fixing frame, this device connects the protective net with the side guardrail to form an integrated closed structure, providing seamless protection and preventing gaps for pedestrians to pass through.

[0021] In this utility model, by setting a fixing mechanism, under the mutual cooperation of components such as pressing parts, rollers, third springs and positioning frames, the rotating frame will not slide after the device is fixed, and the protective net is always in a stretched state, thereby avoiding internal mechanical wear caused by frequent uncontrolled rotation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the retractable pedestrian crossing guardrail of this utility model;

[0023] Figure 2 This is a schematic diagram of the external structure of the main rod and auxiliary rod in this utility model;

[0024] Figure 3 This is an exploded view of the auxiliary components in this utility model;

[0025] Figure 4 This is a cross-sectional view of the internal structure of the main body in this utility model;

[0026] Figure 5 This is an exploded view of the tensioning mechanism in this utility model;

[0027] Figure 6 This is an exploded view of the fixing mechanism in this utility model.

[0028] In the diagram: 1. Main rod; 2. Secondary rod; 3. Spring plate; 4. Rotating frame; 5. Protective net; 6. First spring; 7. Sliding frame; 8. Roller; 9. Second spring; 10. Connecting plate; 11. Fixing frame; 12. Pressing element; 13. Roller; 14. Third spring; 15. Positioning frame; 16. Fixing rod; 17. Insertion hole; 18. First insertion rod; 19. Second insertion rod; 20. Pressure groove; 21. Pressure plate; 22. Fitting plate; 23. Locking hole; 24. Sliding groove; 25. Positioning hole; 26. Positioning block; 27. Sliding hole. Detailed Implementation

[0029] 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.

[0030] Example 1:

[0031] Please see Figures 1-6 A retractable pedestrian crossing guardrail includes a main pole 1, a secondary pole 2, a tensioning mechanism, and a fixing mechanism. The tensioning mechanism includes a spring plate 3, a rotating frame 4, a protective net 5, a first spring 6, a sliding frame 7, a roller 8, and auxiliary components. The spring plate 3 is installed inside the main pole 1 and is connected to the rotating frame 4. One end of the protective net 5 is fixedly installed on the rotating frame 4 and is slidably connected to the roller 8. The first spring 6 is fixedly installed inside the main pole 1, and its other end is fixedly connected to the sliding frame 7. The sliding frame 7 is installed inside the main pole 1 and is slidably connected to the main pole 1. The roller 8 is installed on the sliding frame 7 and is rotatably connected to the sliding frame 7. The auxiliary components include a second spring 9, a connecting plate 10, and a fixing frame 11. The connecting plate 10 is fixedly installed on one end of the protective net 5. The second spring 9 is fixedly installed on the connecting plate 10, and its other end is fixedly connected to the fixing frame 11. The fixing frame 11 is installed on the connecting plate 10 and is slidably connected to the connecting plate 10 and connected to the secondary pole 2.

[0032] In this embodiment, the tensioning mechanism includes a spring plate 3, a rotating frame 4, a protective net 5, a first spring 6, a sliding frame 7, a roller 8, and auxiliary components. In use, the connecting plate 10 is first installed into the fitting plate 22 on the secondary rod 2, allowing the fixing frame 11 to engage with the locking hole 23. The second spring 9 prevents it from easily detaching, thus fixing one end of the protective net 5 to the secondary rod 2. The fixing mechanism can then be used. Next, the secondary rod 2 is pulled, allowing the protective net 5 to be pulled out from inside the main rod 1. To prevent the protective net 5 from being torn at the opening of the main rod 1, the roller 8 contacts the protective net 5 and follows its left-right swaying motion, thereby pressing down on the sliding net. The sliding frame 7 slides inside the main rod 1. Under the action of the first spring 6, the sliding frame 7 can be reset, ensuring tight contact between the protective net 5 and the roller 8. When the protective net 5 is pulled, the rotating frame 4 rotates inside the main rod 1. The pressure plate 21 on the rotating frame 4 rotates in the pressure groove 20 inside the main rod 1. Since the first insertion rod 18 and the second insertion rod 19 on the rotating frame 4 are respectively connected to the insertion hole 17 on the spring plate 3, and one end of the spring plate 3 is fixedly connected to the fixed rod 16, the spring plate 3 is subjected to force. When the protective net 5 is pulled to a sufficient length, the fixing mechanism is used again to fix the position of the spring plate 3 and preserve the spring potential energy, thereby facilitating the recovery of the protective net 5.

[0033] In this embodiment, the fixing mechanism includes a pressing member 12, a roller 13, a third spring 14, and a positioning frame 15. In use, the pressing member 12 is pressed directly. Under the action of the pressing member 12, the positioning frame 15 can compress the third spring 14, thereby causing the positioning hole 25 to disengage from the positioning block 26 on the main rod 1. At the same time, the third spring 14 is compressed, and the second insertion rod 19 slides in the sliding hole 27. Under the action of the elastic potential energy of the spring plate 3, the rotating frame 4 rotates, and drives the positioning frame 15 to rotate in the pressing member 12. The roller 13 slides in the sliding groove 24. When the protective net 5 is retracted or pulled out, the pressing member 12 is released. Under the action of the third spring 14, the positioning block 26 cooperates with the positioning hole 25, thereby fixing the position of the rotating frame 4.

[0034] Example 2:

[0035] In summary, during use, firstly, the connecting plate 10 is installed into the fitting plate 22 on the secondary rod 2, and the fixing bracket 11 is connected to the locking hole 23. Under the action of the second spring 9, it is not easy to fall off, thus connecting and fixing one end of the protective net 5 to the secondary rod 2. At this time, the fixing mechanism can be used. Then, the secondary rod 2 is pulled, so that the protective net 5 can be pulled out inside the main rod 1. In order to prevent the protective net 5 from being torn by the opening of the main rod 1, the roller 8 contacts the protective net 5 and follows the left and right sway of the protective net 5, thereby pressing the sliding frame 7 to slide inside the main rod 1. Under the action of the first spring 6, the sliding frame 7 can be reset, ensuring that the protective net 5 and the roller 8 are in close contact. When the protective net 5 is pulled, the rotating frame 4 rotates inside the main rod 1, and the pressure plate 21 on the rotating frame 4 rotates in the pressure groove 20 inside the main rod 1. And because the first insertion rod 18 and the second insertion rod 19 on the rotating frame 4 are respectively connected to the spring plate The insertion hole 17 on the 3 is connected, and one end of the spring plate 3 is fixedly connected to the fixing rod 16, so that the spring plate 3 is subjected to force. When the protective net 5 is pulled to a sufficient length, the fixing mechanism is used again to fix the position of the spring plate 3 and preserve the spring potential energy, so as to facilitate the recovery of the protective net 5. The fixing mechanism is used by directly pressing the pressing part 12. Under the action of the pressing part 12, the positioning frame 15 can compress the third spring 14, so that the positioning hole 25 is disengaged from the positioning block 26 on the main rod 1. At the same time, the third spring 14 is compressed, and the second insertion rod 19 slides in the sliding hole 27. Under the action of the elastic potential energy of the spring plate 3, the rotating frame 4 rotates and drives the positioning frame 15 to rotate in the pressing part 12. The roller 13 slides in the sliding groove 24. When the protective net 5 is retracted or pulled out, the pressing part 12 is released. Under the action of the third spring 14, the positioning block 26 cooperates with the positioning hole 25 to fix the position of the rotating frame 4.

[0036] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A retractable pedestrian crossing guardrail, comprising a main post (1), a secondary post (2), a tensioning mechanism, and a fixing mechanism, characterized in that, The tensioning mechanism includes a spring plate (3), a rotating frame (4), a protective net (5), a first spring (6), a sliding frame (7), a roller (8), and auxiliary components. The spring plate (3) is installed inside the main rod (1) and is connected to the rotating frame (4). One end of the protective net (5) is fixedly installed on the rotating frame (4) and is slidably connected to the roller (8). The first spring (6) is fixedly installed inside the main rod (1), and its other end is fixedly connected to the sliding frame (7). The sliding frame (7) is installed inside the main rod (1) and is connected to the roller (8). The rod (1) is slidably connected, the roller (8) is mounted on the sliding frame (7) and rotatably connected to the sliding frame (7), the auxiliary component includes a second spring (9), a connecting plate (10) and a fixing frame (11), the connecting plate (10) is fixedly mounted on one end of the protective net (5), the second spring (9) is fixedly mounted on the connecting plate (10) and its other end is fixedly connected to the fixing frame (11), the fixing frame (11) is mounted on the connecting plate (10) and is slidably connected to the connecting plate (10) and cooperated with the auxiliary rod (2) respectively.

2. The retractable pedestrian crossing guardrail according to claim 1, characterized in that: The fixing mechanism includes a pressing element (12), a roller (13), a third spring (14), and a positioning frame (15). The pressing element (12) is installed on the positioning frame (15) and slidably connected to the roller (13). The positioning frame (15) is installed on the main rod (1) and is connected to the rotating frame (4). The roller (13) is installed on the positioning frame (15) and rotatably connected to the positioning frame (15). The third spring (14) is fixedly installed inside the positioning frame (15).

3. The retractable pedestrian crossing guardrail according to claim 2, characterized in that: A fixing rod (16) is provided on the main rod (1), the spring plate (3) is fixedly connected to the fixing rod (16), the spring plate (3) is provided with an insertion hole (17), and the rotating frame (4) is connected to the insertion hole (17).

4. The retractable pedestrian crossing guardrail according to claim 3, characterized in that: The rotating frame (4) is provided with a first insertion rod (18) and a second insertion rod (19), which are respectively connected to the insertion hole (17) and the positioning frame (15).

5. The retractable pedestrian crossing guardrail according to claim 1, characterized in that: The rotating frame (4) has a pressure-bearing groove (20) inside, and the main rod (1) has a pressure-bearing plate (21) which is connected to the pressure-bearing groove (20).

6. The retractable pedestrian crossing guardrail according to claim 1, characterized in that: The secondary rod (2) is provided with a fitting plate (22) and a locking hole (23). The fitting plate (22) is connected to the connecting plate (10), and the locking hole (23) is connected to the fixing frame (11).

7. The retractable pedestrian crossing guardrail according to claim 2, characterized in that: The pressing component (12) has a sliding groove (24) inside, the positioning frame (15) has a positioning hole (25), the roller (13) slides in the sliding groove (24), and the positioning hole (25) is connected to the main rod (1).

8. The retractable pedestrian crossing guardrail according to claim 4, characterized in that: The main rod (1) is provided with a positioning block (26), the positioning frame (15) is provided with a sliding hole (27), the positioning block (26) is connected to the positioning hole (25), and the sliding hole (27) is connected to the second insertion rod (19).

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