Road bridge active protection net

Abstract

The utility model discloses a road bridge initiative protection net, including protection net main part and fixed knot, and the inside of fixed knot is equipped with locking assembly, and locking assembly includes through -hole, guide vertical bar, pre -buried pin and spacing cap, and pre -buried pin top sets up and rotates the joint control twist of vertical groove, and control twist sets up the spacing groove, and spacing cap is equipped with the joint cavity and filling strip in, when installing, pre -buried pin is pre -buried in concrete pedestal, and the rotation control twist is aligned spacing groove and joint vertical groove, and after the sleeve is inserted into fixed knot, inserts spacing cap, and the rotation makes spacing groove and joint vertical groove misregistration and realizes self -locking, and spacing bent column is inserted into the buckle groove and extrudes spacing rubber pad and keeps the lock position, this structure avoids using bolt, prevents the corrosion and the silk, promotes the disassembly efficiency and the net surface recycling rate, and the installation is convenient and reduces the rainwater contact, reduces the corrosion risk.

Description

Technical Field

[0001] This utility model relates to the field of protective netting technology, specifically to an active protective netting for roads and bridges. Background Technology

[0002] Active protection nets are various types of flexible nets, mainly steel wire rope nets, that are used to cover and wrap the slopes or rocks that need protection. They are used to limit the weathering and erosion of the slope rocks and soil, as well as the collapse of dangerous rocks (reinforcement function), or to control the movement of falling rocks within a certain range (containment function), thereby protecting pedestrians and vehicles to pass safely. Publication No. CN221218849U discloses a novel active protective net, including a protective net assembly, several protective net positioning components for fixing the protective net assembly, and a reinforcing net mechanism, including a reinforcing net assembly covering the upper side of the protective net assembly and expansion bolts for fixing the reinforcing net assembly. This invention uses several protective net positioning components to fix the protective net assembly to the surface of the mountain rock, and then uses expansion bolts to bind the reinforcing net assembly to the outside of the protective net assembly and fix it to the surface of the mountain rock. The expansion bolts can also pass through the reinforcing net assembly and the protective net assembly sequentially before being fixed to the surface of the mountain rock, thereby further preventing large pieces of rock from weathering and falling off, making it difficult to bind the protective net assembly and causing damage, thus resulting in personal injury and property loss. However, this patent still has the following problems in actual use: The aforementioned device, like existing active protection nets, employs a bolt-fastening structure. Traditional bolts, subjected to dynamic loads such as wind and rockfall impacts over long periods, as well as environmental erosion from rain and humidity, are prone to thread corrosion or stripping, leading to difficulties in disassembly, low maintenance efficiency, and even damage to the net body due to forced disassembly. This severely impacts the net's recycling rate. Furthermore, the traditional bolt-fixing method involves cumbersome construction steps and multiple tightening operations, increasing construction difficulty and time costs. It is also inconvenient to operate in complex mountainous terrain, affecting project progress.

[0003] An active protection net for roads and bridges is proposed to address the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide an active protection net for roads and bridges, in order to solve the problems mentioned in the background art. The aforementioned devices are the same as existing active protection nets, all of which adopt a bolt fastening structure. They are subjected to dynamic loads such as wind force and falling rock impacts, as well as environmental erosion such as rainwater and humidity over a long period of time. This can easily lead to rust or stripping of the bolt threads, resulting in difficult disassembly, low maintenance efficiency, and even damage to the net body due to forced disassembly, which seriously affects the recycling rate of the net surface. In addition, the traditional bolt fixing method has a complicated construction process, requiring multiple tightening, which increases the construction difficulty and time cost, and is inconvenient to operate in complex mountainous terrain, affecting the progress of the project.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an active protection net for roads and bridges, comprising a main body of the protection net, wherein the main body of the protection net includes a plurality of arrayed connecting sections and symmetrically distributed fixed sections, wherein the connecting sections and fixed sections are fixedly connected to form a net by a network cable; The fixed section is provided with a locking component inside. The locking component includes a through hole in the middle of the fixed section. Guide vertical bars are symmetrically fixedly connected to the inner wall of the through hole. A pre-embedded pin is slidably connected through the through hole. A limit cap is installed on the top of the pre-embedded pin. A limit buckle is fixedly connected to the outer side of the fixed section. The pre-embedded pin has symmetrically formed vertical grooves at its top, a connecting shaft is rotatably connected to the top of the pre-embedded pin, a control knob is fixedly connected to the top of the connecting shaft, and a clearance groove is symmetrically formed on the outer side of the control knob. The limiting cap has a docking cavity inside, and the inner wall of the docking cavity is symmetrically fixed with filling strips.

[0006] Preferably, the guide bar is slidably connected to the docking groove, the guide bar is also slidably connected to the avoidance groove, and the control knob is slidably connected to the through hole.

[0007] Preferably, the control knob is inserted into the docking cavity, and the filling strip is slidably connected to the clearance groove.

[0008] Preferably, a limiting bend is fixedly connected to the outer side of the limiting cap, a buckle groove is provided on one side of the limiting buckle, and the limiting bend is engaged with the limiting rubber pad.

[0009] Preferably, a limiting rubber pad is fixedly connected to the inner side of the opening of the buckle groove.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: This active road and bridge protection net, by replacing traditional bolt fixing with a mechanical structure, completely solves the problems of difficult disassembly and low recycling rate caused by thread corrosion and stripping, achieving convenient locking and efficient disassembly, and significantly improving the durability, recyclability, and construction efficiency of the road and bridge protection net. Its specific details are as follows: 1. The locking assembly, through the coordinated design of pre-embedded pins, control torques, limit caps, and guide bars, achieves precise locking and convenient disassembly of the fixed section, fundamentally overcoming the shortcomings of traditional bolt fixing. Automatic locking is achieved through a mechanical structure: during installation, rotating the control torque aligns the clearance groove with the docking groove; after the fixed section slides in, the rotation of the limit cap drives the control torque to misalign the clearance groove with the docking groove, forming a vertical lock. Disassembly releases the lock by rotating in the opposite direction, without relying on thread engagement, avoiding the risks of corrosion and stripping. This design not only significantly improves disassembly efficiency but also enhances the recyclability and reuse value of the protective net through its modular structure. Simultaneously, the installation process is simpler and more intuitive, reducing construction difficulty. It provides a more stable, durable, and economical fixing solution for active protection nets for roads and bridges, extending the service life of the overall protection system and ensuring long-term protective effects.

[0011] 2. The limiting bend, in conjunction with the limiting rubber pad and the locking groove, engages with the locking cap after it has rotated into position. The limiting rubber pad deforms, preventing the limiting bend from disengaging, thus maintaining the misalignment between the clearance groove and the connecting vertical groove, ensuring the fixed section is always securely locked onto the embedded pin. This design enhances the overall stability and reliability of the protective netting, effectively avoiding safety hazards caused by accidental rotation of the limiting cap, and providing long-term, stable protection for roads and bridges. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This utility model Figure 1 Enlarged structural diagram at point B; Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the installation structure of the limit cap and the embedded pin; Figure 5 This is a cross-sectional structural diagram of the limit cap and the embedded pin.

[0013] In the diagram: 1. Main body of the protective net; 101. Connecting section; 102. Fixing section; 103. Net cable; 2. Locking component; 201. Through hole; 202. Guide vertical bar; 203. Embedded pin; 2031. Connecting vertical groove; 2032. Connecting shaft; 2033. Control torque; 2034. Alternating groove; 204. Limiting cap; 2041. Connecting cavity; 2042. Filler strip; 3. Limiting bend; 4. Limiting buckle; 401. Buckle groove; 402. Limiting rubber pad. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1-5 The present invention provides a technical solution: an active protection net for roads and bridges, including a protection net body 1. The protection net body 1 includes a plurality of arrayed connecting sections 101 and symmetrically distributed fixed sections 102. The connecting sections 101 and the fixed sections 102 are fixedly connected to form a net by a net cable 103. When installed, the fixed sections 102 are located at the edge of 1, and there are two specifications: symmetrically located on both sides of 1 and distributed around the four sides of 1. The connecting sections 101 are located between the symmetrically distributed fixed sections 102.

[0016] The fixed section 102 is internally provided with a locking component 2. The locking component 2 includes a through hole 201 opened in the middle of the fixed section 102. Guide vertical bars 202 are symmetrically fixedly connected to the inner wall of the through hole 201. A pre-embedded pin 203 is slidably connected through the through hole 201. A limit cap 204 is installed on the top of the pre-embedded pin 203. A limit buckle 4 is fixedly connected to the outer side of the fixed section 102. The top of the pre-embedded pin 203 is symmetrically provided with a mating vertical groove 2031. The top of the pre-embedded pin 203 is rotatably connected to... A connecting shaft 2032 is provided, and a control torque 2033 is fixedly connected to the top of the connecting shaft 2032. A clearance groove 2034 is symmetrically provided on the outer side of the control torque 2033. A mating cavity 2041 is provided inside the limiting cap 2041, and a filler strip 2042 is symmetrically fixedly connected to the inner wall of the mating cavity 2041. A pre-embedded pin 203 is pre-embedded in the concrete base of the slope on both sides of the road and bridge. By first rotating the control torque 2033, the clearance groove 2034 is aligned with the mating vertical groove 2031. Then... The fixing section 102 is inserted from the top of the control knob 2033, the guide bar 202 slides along the clearance groove 2034 and is inserted into the docking groove 2031, and then the limiting cap 204 is inserted into the control knob 2033 through the docking cavity 2041, so that the filler bar 2042 slides into the clearance groove 2034; at the same time, the limiting cap 204 is fitted outside the control knob 2033, and finally the limiting cap 204 is rotated, the limiting bent column 3 rotates and squeezes the limiting rubber pad 402 to deform, and finally it is locked into the buckle groove 4. 01; This locking component 2 avoids traditional bolt fixing, thus preventing bolt corrosion or stripping due to long-term stress and external wind and rain erosion of the thread groove, which would affect disassembly efficiency and consequently the recycling of the mesh. Moreover, avoiding the use of bolts makes the installation of the protective mesh body 1 more convenient. The connecting shaft 2032 is connected to the pre-embedded pin 203 through a bearing, and the bottom end of the limit cap 204 is attached to the surface of the fixing section 102, which can reduce the contact between rainwater and the connecting shaft 2032 and reduce the chance of corrosion.

[0017] The guide bar 202 is slidably connected to the docking groove 2031, and the guide bar 202 is also slidably connected to the clearance groove 2034. The control torque 2033 is slidably connected to the through hole 201. When the limit cap 204 is installed and rotated, the limit cap 204 will drive the control torque 2033 to rotate through the docking cavity 2041 and the clearance groove 2034, thereby causing the clearance groove 2034 to be misaligned with the docking groove 2031. At this time, the fixed section 102, which is slidably sleeved on the outside of the embedded pin 203, cannot move vertically and therefore cannot be disengaged from the embedded pin 203, thus forming an automatic locking.

[0018] The control torque 2033 is inserted into the docking cavity 2041, and the filling strip 2042 is slidably connected to the clearance groove 2034.

[0019] The outer side of the limiting cap 204 is fixedly connected to the limiting bend 3, and the limiting buckle 4 has a buckle groove 401 on one side. The limiting bend 3 is engaged with the limiting rubber pad 402. After the limiting bend 3 is engaged in the buckle groove 401 of the limiting buckle 4, it can maintain the misalignment state between the avoidance groove 2034 and the docking vertical groove 2031.

[0020] A limiting rubber pad 402 is fixedly connected to the inner side of the opening of the buckle groove 401; the limiting rubber pad 402 can deform when the limiting bent post 3 is inserted into the buckle groove 401, and after the limiting bent post 3 is inserted into the buckle groove 401, it prevents it from falling out, thus preventing the limiting cap 204 from rotating arbitrarily without manual operation.

[0021] Working principle: Before using this type of active safety net for roads and bridges, it is necessary to check the overall condition of the device to ensure it can function normally. Figure 1 - Figure 5 As shown, firstly, the pre-embedded pin 203 is pre-embedded in the concrete base on both sides of the road and bridge slopes; During installation, first rotate the control knob 2033 to align the clearance groove 2034 with the docking vertical groove 2031, then insert the fixing section 102 from the top of the control knob 2033, allowing the guide vertical bar 202 to slide along the clearance groove 2034 and insert into the docking vertical groove 2031, thus achieving the initial positioning of the fixing section 102 and the pre-embedded pin 203. Next, the limiting cap 204 is inserted into the control knob 2033 through the docking cavity 2041, so that the filling strip 2042 is slidably inserted into the clearance groove 2034, while the limiting cap 204 is sleeved on the outside of the control knob 2033. Then rotate the limit cap 204. The limit cap 204 drives the control torque 2033 to rotate through the docking cavity 2041 and the avoidance groove 2034, so that the avoidance groove 2034 is misaligned with the docking vertical groove 2031, so that the fixed section 102 cannot move vertically and thus achieves automatic locking. At this time, the limiting bent column 3 rotates and squeezes the limiting rubber pad 402 to deform and then gets stuck in the buckle groove 401. The limiting rubber pad 402 prevents the limiting bent column 3 from disengaging, maintaining the misalignment state between the avoidance groove 2034 and the docking vertical groove 2031, ensuring that the fixed section 102 is stable.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An active protection net for road and bridge, comprising a protection net body (1), wherein the protection net body (1) comprises a plurality of arrayed connecting sections (101) and symmetrically distributed fixed sections (102), wherein the connecting sections (101) and the fixed sections (102) are fixedly connected to form a net by a net cable (103); Its features are, Also includes: The fixed section (102) is provided with a locking component (2). The locking component (2) includes a through hole (201) opened in the middle of the fixed section (102). The inner wall of the through hole (201) is symmetrically fixedly connected with guide vertical bars (202). The through hole (201) is slidably connected with a pre-embedded pin (203). The top of the pre-embedded pin (203) is equipped with a limit cap (204). The outer side of the fixed section (102) is fixedly connected with a limit buckle (4). The pre-embedded pin (203) has a symmetrically formed vertical groove (2031) at the top, a connecting shaft (2032) is rotatably connected to the top of the pre-embedded pin (203), a control knob (2033) is fixedly connected to the top of the connecting shaft (2032), and a clearance groove (2034) is symmetrically formed on the outer side of the control knob (2033). The limiting cap (204) has a docking cavity (2041) inside, and the inner wall of the docking cavity (2041) is symmetrically fixed with filling strips (2042).

2. The active protection net for roads and bridges according to claim 1, characterized in that: The guide bar (202) is slidably connected to the docking groove (2031), and the guide bar (202) is also slidably connected to the clearance groove (2034). The control knob (2033) is slidably connected to the through hole (201).

3. The active protection net for roads and bridges according to claim 1, characterized in that: The control knob (2033) is inserted into the docking cavity (2041), and the filling strip (2042) is slidably connected to the clearance groove (2034).

4. The active protection net for roads and bridges according to claim 1, characterized in that: The limiting cap (204) is fixedly connected to the outer side of the limiting bend (3), and the limiting buckle (4) has a buckle groove (401) on one side. The limiting bend (3) is engaged with the limiting rubber pad (402).

5. The active protection net for roads and bridges according to claim 4, characterized in that: A limiting rubber pad (402) is fixedly connected to the inner side of the opening of the buckle groove (401).

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