Bridge temporary guardrail reinforcing device for extension project

Abstract

The bridge temporary guardrail reinforcing device for the expansion project comprises guardrail bodies, connecting blocks and limiting mechanisms, the connecting blocks and the limiting mechanisms are used for connecting the adjacent guardrail bodies, mounting blocks and limiting blocks are oppositely arranged on the two sides of the guardrail bodies, and positioning mechanisms for limiting the limiting blocks are arranged on the mounting blocks. A movable rod is movably arranged in the guardrail body, the movable rod is fixedly connected with the limiting block through a traction rope, a traction mechanism is arranged at the end, away from the traction rope, of the movable rod, a cavity for installing the traction mechanism is defined in the guardrail body, the traction mechanism comprises a fixed rod and two sliding blocks, the fixed rod is fixed in the guardrail body, and the fixed rod is oppositely sleeved with the two sliding blocks in a sliding mode; and the second spring is arranged on the fixed rod in a sleeving mode, and the two ends of the second spring are fixedly connected with the two sliding blocks correspondingly. According to the bridge temporary guardrail reinforcing device for the extension project, the effect of preventing the movement range of adjacent guardrail bodies from being too large can be achieved, and the overall safety effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering construction technology, and more specifically, to a temporary guardrail reinforcement device for bridge expansion projects. Background Technology

[0002] Temporary bridge railings are safety protection facilities installed during bridge construction, maintenance, or other temporary work. Their main purpose is to prevent vehicles, pedestrians, or construction materials from falling off the bridge. They also guide traffic and ensure traffic safety and smooth flow near the construction area. Temporary bridge railings are usually made of materials that are easy to install and dismantle, such as metal railings, steel fences, or high-strength plastics. These materials not only need to have a certain mechanical strength but should also be easy to reuse. However, existing temporary bridge railings have the problem of being difficult to dismantle and fix, and when a vehicle hits the railing, both the vehicle and the railing are easily damaged, increasing the extent of the loss.

[0003] To address the aforementioned issues, particularly the difficulties in dismantling and securing existing temporary bridge railings, and the risk of simultaneous damage to both the vehicle and railing upon impact, thus exacerbating losses, extensive research revealed a patent publication number (CN221421719U) for a bridge temporary railing reinforcement device used in expansion projects. This device, belonging to the field of bridge construction technology, utilizes a second spring to hold the fixing block in place. The second spring effectively reduces the impact force on the fixing block. Furthermore, a buffer pad on one side of the fixing plate further mitigates the damage to both the vehicle and the railing upon collision.

[0004] However, the aforementioned bridge temporary guardrail reinforcement device used in bridge expansion projects still has some problems. For example, in the event of a collision and movement between adjacent guardrails, the lack of a traction mechanism between them makes them prone to separation, thus reducing overall safety. To address these problems, this utility model proposes a bridge temporary guardrail reinforcement device for bridge expansion projects. Utility Model Content

[0005] The present invention aims to solve the technical problems mentioned in the background art and provide a temporary guardrail reinforcement device for bridge expansion projects.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a temporary bridge railing reinforcement device for bridge expansion projects, comprising a railing body, a connecting block for connecting adjacent railing bodies, and a limiting mechanism. The railing body has mounting blocks and limiting blocks on opposite sides. The mounting blocks have a positioning mechanism for limiting the limiting blocks. The limiting blocks are movably disposed within the railing body. A movable rod is movably disposed within the railing body. The movable rod is fixedly connected to the limiting blocks via a traction rope. A traction mechanism is provided at the end of the movable rod facing away from the traction rope. A cavity for installing the traction mechanism is defined within the railing body. The traction mechanism includes:

[0007] A fixed rod is fixed to the body of the guardrail. Two sliders are sleeved on the fixed rod and slidably disposed thereon. Both sliders are hinged to the movable rod through a connecting rod.

[0008] The second spring is sleeved on the fixed rod, and its two ends are fixedly connected to the two sliders respectively.

[0009] A further preferred embodiment: a movable plate is fixedly connected between the movable rod and the traction rope; the guardrail body is provided with a movable groove for the movable plate to move in; the movable groove is connected to the cavity; a first spring is fixedly connected to the end of the movable plate away from the movable rod; the first spring is located in the movable groove.

[0010] A further preferred embodiment: the two sliders are fixedly connected to the first end of a fourth spring at the end opposite to the second spring, the second end of the fourth spring is fixedly connected to the guardrail body, and the fourth spring is sleeved on the fixed rod.

[0011] A further preferred embodiment: a through-hole connects the movable groove and the cavity, the through-hole allowing the movable rod and the connecting rod to pass through, and the diameter of the through-hole is smaller than the diameter of the movable plate.

[0012] A further preferred embodiment: the limiting block has a through-hole, the positioning mechanism is used for positioning through the positioning hole, the mounting block has an insertion hole for the limiting block to be inserted, and the positioning mechanism includes:

[0013] A positioning rod is inserted through and movably mounted on the mounting block. The first end of the positioning rod is movably mounted between the mounting block and the insertion hole, and has an upwardly inclined surface facing the limiting block. The second end of the positioning rod extends to the outside of the mounting block and is fixedly connected to a limiting plate.

[0014] A movable plate is sleeved and fixed on the positioning rod. The movable plate is movably disposed within the mounting block. The mounting block is provided with a movable groove for the movable plate to move. A third spring is sleeved on the movable plate and is located within the movable groove.

[0015] A further preferred embodiment: baffles are fixedly connected to both ends of the limiting block.

[0016] A further preferred embodiment: A buffer mechanism is fixedly connected to the guardrail body. The buffer mechanism includes an airbag, a sponge, and a protective sleeve that are fixedly connected outward from the guardrail body. The protective sleeve surrounds the airbag and the sponge.

[0017] A further preferred embodiment: a mounting plate is fixedly connected to the bottom of the guardrail body.

[0018] Beneficial effects:

[0019] 1. By setting up a traction mechanism, the limit block can be buffered, avoiding excessive movement of adjacent guardrail bodies and improving overall safety.

[0020] 2. By setting up a first spring, a fourth spring, and multiple sets of springs, the traction force on the limit block can be increased, further ensuring the stability between adjacent guardrail bodies and improving the overall safety.

[0021] 3. By incorporating a buffer mechanism, the protective properties of the guardrail body can be enhanced, while also reducing the damage to itself and others when the guardrail is impacted. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This utility model Figure 1 A structural diagram from another perspective.

[0024] Figure 3 This is a structural diagram of the connection between adjacent plates of this utility model.

[0025] Figure 4 This is a schematic diagram of the traction mechanism of this utility model.

[0026] Figure 5 This is a schematic diagram of the positioning mechanism of this utility model.

[0027] Figure 6 This is a schematic diagram of the buffer mechanism of this utility model.

[0028] Figure 1-6Components: 1. Guardrail body; 2. Connecting block; 3. Limiting mechanism; 4. Mounting block; 5. Limiting block; 6. Buffer mechanism; 61. Airbag; 62. Sponge; 63. Protective sleeve; 7. Traction mechanism; 71. Second spring; 72. Fixed rod; 73. Slider; 74. Connecting rod; 8. Mounting plate; 9. Positioning mechanism; 91. Limiting plate; 92. Positioning rod; 93. Third spring; 94. Moving plate; 95. Moving groove; 10. Positioning hole; 11. Baffle; 12. Insertion hole; 13. Traction rope; 14. Movable plate; 15. First spring; 16. Movable groove; 17. Movable rod; 18. Fourth spring; 19. Through port; 20. Cavity. Detailed Implementation

[0029] The following will refer to the appendix in the embodiments of this utility model. Figures 1-6 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0030] Please see Figure 1-6 In this embodiment of the utility model, a temporary bridge guardrail reinforcement device for expansion projects includes a guardrail body 1, a connecting block 2 for connecting adjacent guardrail bodies 1, and a limiting mechanism 3. Mounting blocks 4 and limiting blocks 5 are provided opposite to each other on both sides of the guardrail body 1. The mounting block 4 is provided with a positioning mechanism 9 that limits the limiting blocks 5. The limiting blocks 5 are movably disposed within the guardrail body 1. A movable rod 17 is movably disposed within the guardrail body 1. The movable rod 17 is fixedly connected to the limiting blocks 5 via a traction rope 13. A traction mechanism 7 is provided at one end of the movable rod 17 away from the traction rope 13. A cavity 20 for installing the traction mechanism 7 is defined within the guardrail body 1. The traction mechanism 7 includes a fixed rod 72, which is fixed within the guardrail body 1. Two sliders 73 are slidably mounted on the fixed rod 72, and both sliders 73 are hinged to the movable rod 17 via a connecting rod 74. A second spring 71 is mounted on the fixed rod 72, and its two ends are fixedly connected to the two sliders 73 respectively.

[0031] Specifically, adjacent guardrail bodies 1 are installed via connecting block 2 and limiting mechanism 3, while limiting block 5 is installed with mounting block 4 via positioning mechanism 9. When a vehicle or external object impacts guardrail body 1, causing adjacent guardrail bodies 1 to rotate or separate, limiting block 5 moves movable rod 17 via traction rope 13. Movable rod 17 moves two sliders 73 closer to each other along fixed rod 72 via connecting rod 74, thereby causing the two sliders 73 to compress the second spring 71, thus buffering the limiting block 5, preventing excessive movement of adjacent guardrail bodies 1, and improving overall safety.

[0032] It should be noted that the installation and structure of the connecting block 2 and the limiting mechanism 3 can refer to a temporary bridge guardrail reinforcement device for expansion project with patent announcement number CN221421719U. The positioning mechanism 9 is a mechanism that can position the limiting block 5, such as a positioning pin, bolt, etc. The corresponding limiting block 5 needs to be designed with a structure that can be positioned by the positioning mechanism 9.

[0033] In this embodiment of the utility model, such as Figure 4 As shown, a movable plate 14 is fixedly connected between the movable rod 17 and the traction rope 13. The guardrail body 1 has a movable groove 16 for the movable plate 14 to move within it. The movable groove 16 communicates with the cavity 20. A first spring 15 is fixedly connected to the end of the movable plate 14 facing away from the movable rod 17. The first spring 15 is located within the movable groove 16. Specifically, when the traction rope 13 is pulled, the movable plate 14 compresses the first spring 15, further increasing the traction force on the limiting block 5. Furthermore, the two sliders 73 face away from the second spring 71. The first end of the fourth spring 18 is fixedly connected to one end, and the second end of the fourth spring 18 is fixedly connected to the guardrail body 1. The fourth spring 18 is sleeved on the fixed rod 72, and the fourth spring 18 can increase the pulling force of the slider 73. There is a through-hole 19 between the movable groove 16 and the cavity 20. The through-hole 19 allows the movable rod 17 and the connecting rod 74 to pass through. The diameter of the through-hole 19 is smaller than the diameter of the movable plate 14. The setting of the through-hole 19 restricts the movable plate 14 and the first spring 15 from disengaging from the movable groove 16, ensuring the normal operation of the device.

[0034] In this embodiment of the utility model, such as Figure 1 , Figure 2 and Figure 5As shown, a positioning hole 10 is provided through the limiting block 5, and a positioning mechanism 9 is used for positioning the positioning hole 10. The mounting block 4 is provided with an insertion hole 12 for the limiting block 5 to be inserted. The positioning mechanism 9 includes a positioning rod 92, which is provided through and movably mounted on the mounting block 4. The first end of the positioning rod 92 is movably mounted between the mounting block 4 and the insertion hole 12, and has an upward inclined surface facing the limiting block 5. The second end of the positioning rod 92 extends to the outside of the mounting block 4 and is fixedly connected to a limiting plate 91 and a movable plate 94, which is sleeved and fixed on the positioning rod 92. The movable plate 94 is movably mounted inside the mounting block 4, and the mounting block 4 is provided with a movable plate 94 for movement. A third spring 93 is fitted onto the movable plate 94 in the movable groove 95. The third spring 93 is located inside the movable groove 95. The two ends of the limiting block 5 are fixedly connected to baffles 11. Specifically, the baffles 11 can prevent the limiting block 5 from being completely embedded inside the guardrail body 1. At the same time, when installing the limiting block 5 and the mounting block 4, it is only necessary to insert the limiting block 5 into the insertion hole 12. The limiting block 5 pushes the positioning rod 92 to move and drives the movable plate 94 to squeeze the third spring 93. When the positioning hole 10 is aligned with the positioning rod 92, the spring drives the movable plate 94 to reset, thereby enabling the positioning rod 92 to automatically limit the positioning hole 10, improving the overall installation efficiency.

[0035] In this embodiment of the utility model, such as Figure 1 , Figure 2 and Figure 6 As shown, a buffer mechanism 6 is fixedly connected to the guardrail body 1. The buffer mechanism 6 includes an airbag 61, a sponge 62, and a protective sleeve 63, which are fixedly connected outward from the guardrail body 1. The protective sleeve 63 surrounds the airbag 61 and the sponge 62. Specifically, the airbag 61 can be filled with inert gas. The buffer mechanism 6 can improve the protective performance of the guardrail body 1 and reduce the damage to itself and others when the guardrail is hit.

[0036] In this embodiment of the utility model, such as Figure 1 and Figure 3 As shown, a mounting plate 8 is fixedly connected to the bottom of the guardrail body 1;

[0037] Working principle: This device connects adjacent guardrail bodies 1 through connecting block 2 and limiting mechanism 3 to form a temporary guardrail. When it is necessary to connect adjacent guardrail bodies 1, the limiting block 5 is inserted into the insertion hole 12 of the mounting block 4. During the insertion process, the limiting block 5 pushes the positioning rod 92 to move through the inclined surface. When the positioning hole 10 on the limiting block 5 is aligned with the positioning rod 92, the positioning rod 92 is inserted into the positioning hole 10 under the action of the third spring 93, thus fixing the limiting block 5. When a vehicle or foreign object hits the guardrail body 1, causing the adjacent guardrail bodies 1 to rotate or separate, the limiting block 5 drives the movable rod 17 to move through the traction rope 13. The movable rod 17 drives the two sliders 73 to move relatively closer along the fixed rod 72 through the connecting rod 74, so that the two sliders 73 squeeze the second spring 71, thereby buffering the limiting block 5 and preventing the adjacent guardrail bodies 1 from moving too much, thus improving the overall safety. At the same time, the buffering mechanism 6 in the device can play a buffering role, improving the safety and stability of the temporary guardrail.

Claims

1. A temporary bridge guardrail reinforcement device for bridge expansion projects, comprising a guardrail body (1), a connecting block (2) for connecting adjacent guardrail bodies (1), and a limiting mechanism (3), characterized in that: The guardrail body (1) has mounting blocks (4) and limiting blocks (5) on opposite sides. The mounting blocks (4) are provided with positioning mechanisms (9) for limiting the limiting blocks (5). The limiting blocks (5) are movably disposed within the guardrail body (1). A movable rod (17) is movably disposed within the guardrail body (1). The movable rod (17) is fixedly connected to the limiting blocks (5) via a traction rope (13). A traction mechanism (7) is provided at one end of the movable rod (17) away from the traction rope (13). A cavity (20) for installing the traction mechanism (7) is defined within the guardrail body (1). The traction mechanism (7) includes: A fixed rod (72) is fixed inside the guardrail body (1). Two sliders (73) are sleeved on the fixed rod (72) and slidably mounted thereon. Both sliders (73) are hinged to the movable rod (17) through a connecting rod (74). The second spring (71) is sleeved on the fixed rod (72) and its two ends are fixedly connected to the two sliders (73).

2. The bridge temporary guardrail reinforcement device for expansion projects according to claim 1, characterized in that: A movable plate (14) is fixedly connected between the movable rod (17) and the traction rope (13). The guardrail body (1) is provided with a movable groove (16) for the movable plate (14) to move. The movable groove (16) is connected to the cavity (20). A first spring (15) is fixedly connected to one end of the movable plate (14) away from the movable rod (17). The first spring (15) is located in the movable groove (16).

3. The bridge temporary guardrail reinforcement device for expansion projects according to claim 2, characterized in that: The first end of the fourth spring (18) is fixedly connected to one end of the two sliders (73) away from the second spring (71). The second end of the fourth spring (18) is fixedly connected to the guardrail body (1). The fourth spring (18) is sleeved on the fixed rod (72).

4. A bridge temporary guardrail reinforcement device for expansion projects according to claim 2 or 3, characterized in that: A through-hole (19) connects the movable groove (16) and the cavity (20), and the through-hole (19) allows the movable rod (17) and the connecting rod (74) to pass through. The diameter of the through-hole (19) is smaller than the diameter of the movable plate (14).

5. A bridge temporary guardrail reinforcement device for expansion projects according to claim 1, characterized in that: The limiting block (5) has a through-hole (10), and the positioning mechanism (9) is used for positioning in the positioning hole (10). The mounting block (4) has an insertion hole (12) for the limiting block (5) to be inserted. The positioning mechanism (9) includes: A positioning rod (92) is inserted through and movably disposed on the mounting block (4). The first end of the positioning rod (92) is movably disposed between the mounting block (4) and the insertion hole (12), and has an upwardly inclined surface on the side facing the limiting block (5). The second end of the positioning rod (92) extends to the outside of the mounting block (4) and is fixedly connected to the limiting plate (91). A movable plate (94) is sleeved and fixed on the positioning rod (92). The movable plate (94) is movably disposed in the mounting block (4). The mounting block (4) is provided with a movable groove (95) for the movable plate (94) to move. A third spring (93) is sleeved on the movable plate (94) and the third spring (93) is located in the movable groove (95).

6. A bridge temporary guardrail reinforcement device for expansion projects according to claim 5, characterized in that: The limiting block (5) has baffles (11) fixedly connected to both ends.

7. A bridge temporary guardrail reinforcement device for expansion projects according to claim 1, characterized in that: A buffer mechanism (6) is fixedly connected to the guardrail body (1). The buffer mechanism (6) includes an airbag (61), a sponge (62) and a protective sleeve (63) that are fixedly connected outward from the guardrail body (1). The protective sleeve (63) surrounds the airbag (61) and the sponge (62).

8. A bridge temporary guardrail reinforcement device for expansion projects according to claim 1, characterized in that: The bottom of the guardrail body (1) is fixedly connected to an installation plate (8).

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