Highway side slope protection net anti-loosening fastening lock buckle assembly

By designing a combination of locking housing and clamping mechanism, the problem of loosening of the protective net rope was solved, the protective net was stably fixed, and the safety of the slope protection net was ensured.

CN224363334UActive Publication Date: 2026-06-16SHANDONG KAINUO ZHIDA CONSTRUCTION ENGINEERING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG KAINUO ZHIDA CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing anti-loosening fastening and locking components for highway slope protection nets cannot effectively tighten the protective net ropes, resulting in the loss of structural stability of the protection nets, making it unable to intercept falling objects and threatening road safety.

Method used

The design incorporates a combination of a locking housing, a top cover, a clamping mechanism, and a reinforcement mechanism. Through the coordinated action of components such as a sliding rod, a return spring, and a retaining ring, the protective net rope is clamped and reinforced, ensuring the stable fixation of the protective net.

🎯Benefits of technology

This ensures reliable fixation of the protective netting ropes, preventing loosening and displacement, improving the overall stability of the slope protection netting, and ensuring road safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of slope protection net reinforcing, disclose a highway slope protection net anti -loosening fastening lock catch subassembly, including lock catch casing, the top of lock catch casing is fixedly connected with the top cap, the inside slide coupling of top cap has the clamping mechanism, the outside four corners of lock catch casing all are fixedly connected with a plurality of reinforcing mechanism, the clamping mechanism includes slide rod, the outside slide coupling of slide rod in the inside of top cap, the top of slide rod is fixedly connected with pull -out board no.
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Description

Technical Field

[0001] This utility model relates to the field of slope protection net reinforcement technology, and in particular to a fastening and locking component for preventing loosening of highway slope protection nets. Background Technology

[0002] The anti-loosening fastening and locking assembly for highway slope protection netting is mainly used in slope protection scenarios along mountainous roads, expressways, and railways. In these sections, due to complex geological conditions, rainwater erosion, weathering, and vehicle vibration, slope protection netting is prone to loosening and displacement, threatening road safety. The anti-loosening fastening and locking assembly, with its high strength and high stability, can effectively secure the protection netting, preventing it from falling off or deforming due to external impacts.

[0003] In existing technologies, some highway slope protection netting anti-loosening fastening locking components resist vibration and external forces through a multi-locking structure. The components typically consist of bolts, nuts, spring washers, and anti-loosening clips. After the bolts pass through the protective netting and anchor holes, the spring washers generate elastic tension when the nut is tightened, counteracting axial displacement caused by vibration. The anti-loosening clips engage with the nut's outer circumferential protrusions or thread gaps, forming a mechanical limit and preventing the nut from rotating counterclockwise.

[0004] However, in practical use, if the anti-loosening fastening locking components for highway slope protection nets fail to secure the netting ropes, it will lead to a series of serious consequences. Once the netting ropes loosen, the overall structural stability of the protection netting is lost, making it unable to effectively intercept falling rocks and soil, causing slope rockfalls, landslides, and other disasters that directly threaten the safety of passing vehicles and pedestrians. To address the above-mentioned problems, we now propose an anti-loosening fastening locking component for highway slope protection nets. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a highway slope protection net anti-loosening fastening locking assembly, which aims to improve the problem that some existing highway slope protection net anti-loosening fastening locking assemblies cannot tighten the protective net rope.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The anti-loosening fastening locking assembly for highway slope protection netting includes a locking housing, a top cover fixedly connected to the top of the locking housing, a locking mechanism slidably connected inside the top cover, and multiple reinforcement mechanisms fixedly connected to the four outer corners of the locking housing.

[0008] The clamping mechanism includes a sliding rod, which is slidably connected to the outside of the top cover. A pull plate is fixedly connected to the top of the sliding rod. A cavity is opened inside the top cover. A reset assembly is sleeved on the outside of the sliding rod. A pressure plate is fixedly connected to the bottom of the sliding rod.

[0009] As a further description of the above technical solution:

[0010] The reset assembly includes a connecting plate, which is externally fixedly connected to the inside of the top cover. The top cover has a cavity inside, and a reset spring is sleeved on the outside of the sliding rod.

[0011] As a further description of the above technical solution:

[0012] The reinforcement mechanism includes two extension plates, with connecting rods slidably connected to the outside of the extension plates. Pull plates are fixedly connected to the far sides of the two connecting rods, and retaining rings are fixedly connected to the near sides of the two connecting rods.

[0013] As a further description of the above technical solution:

[0014] A protective net rope is slidably connected inside the locking housing, and the outside of the retaining ring is in contact with the outside of the protective net rope;

[0015] As a further description of the above technical solution:

[0016] The sliding rod is externally slidably connected to the inside of the cavity, and the sliding rod is externally slidably connected to the inside of the connecting plate;

[0017] As a further description of the above technical solution:

[0018] The outer side of the clamping plate is slidably connected to the inside of the top cover, and the outer side of the clamping plate is in contact with the outer side of the protective net rope;

[0019] As a further description of the above technical solution:

[0020] The outer side of the pull plate is in contact with the top of the top cover;

[0021] As a further description of the above technical solution:

[0022] One end of the reset spring is fixedly connected to the bottom outer end of the connecting plate, and the other end of the reset spring is fixedly connected to the top outer end of the clamping plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the sliding rod drives the pressing plate to separate from the protective net rope, thereby allowing the protective net rope to be removed. When installing the protective net rope, by loosening the first pull plate, the return spring rebounds, and the sliding rod presses the protective net rope through the pressing plate, thereby enabling the installation of the protective net rope.

[0025] 2. In this utility model, by pulling the second pull plate, the second pull plate drives the connecting rod to move, causing the connecting rod to separate the retaining ring from the protective net rope, thereby allowing the protective net rope to be taken out from the inside of the locking housing. When reinforcing the protective net rope, by pressing the second pull plate, the second pull plate drives the connecting rod to squeeze the retaining ring, thereby locking the retaining ring with the protective net rope, thereby achieving the extension and reinforcement of the protective net rope. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the anti-loosening fastening locking assembly for highway slope protection netting proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the protective net rope of the anti-loosening fastening locking assembly for highway slope protection netting proposed in this utility model.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 for Figure 2 Enlarged view of section B in the middle.

[0030] Legend:

[0031] 1. Lock housing; 2. Top cover; 3. Cavity; 4. Connecting plate; 5. Sliding rod; 6. Pull plate one; 7. Return spring; 8. Pressing plate; 9. Protective net rope; 10. Extension clamping plate; 11. Connecting rod; 12. Clamping ring; 13. Pull plate two. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1 to 3This utility model provides an embodiment of a highway slope protection net anti-loosening fastening locking assembly, including a locking housing 1. The main function of the locking housing 1 is to provide a stable installation base for other components. At the same time, when the protection net is under stress, it serves as the main load-bearing structure, dispersing and transmitting external forces to maintain the overall stability of the protection net. A top cover 2 is fixedly connected to the top of the locking housing 1. The shape of the top cover 2 is adapted to the top of the locking housing 1, and it can tightly cover the locking housing 1 to form a relatively closed space, protecting the internal clamping mechanism from external environmental factors. The clamping mechanism is slidably connected inside the top cover 2. Multiple reinforcement mechanisms are fixedly connected to the four corners of the locking housing 1. The reinforcement mechanism includes two extension plates 10. The surface of the extension plates 10 is provided with anti-slip textures or protrusions to increase the friction between them and the connecting rod 11.

[0034] To prevent the connecting rod 11 from moving arbitrarily during sliding and to ensure the working stability of the reinforcement mechanism, the connecting rod 11 is slidably connected to the outside of the extension plate 10. The two ends of the connecting rod 11 are fixedly connected to the pull plate 13 and the retaining ring 12 respectively, which serves to connect and transmit the tension. The tension applied by the pull plate 13 is transmitted to the retaining ring 12 to further reinforce the protective net. The pull plate 13 is fixedly connected to the far side of the two connecting rods 11. The main function of the pull plate 13 is to provide a force application point for the construction personnel. When installing or adjusting the protective net, the construction personnel pull the pull plate 13 to drive the connecting rod 11 to slide within the extension plate 10, thereby adjusting the position of the retaining ring 12 to achieve tensioning and fixing of the protective net. The retaining ring 12 is fixedly connected to the near side of the two connecting rods 11. The retaining ring 12 will tighten as the connecting rod 11 moves, tightly locking the connecting parts of the protective net and firmly connecting the protective net to the locking housing 1, effectively preventing the protective net from loosening or shifting on the slope.

[0035] The clamping mechanism includes a sliding rod 5. The main function of the sliding rod 5 is as the core transmission component of the clamping mechanism. By sliding up and down within the top cover 2, it drives other connected components to work together, thereby achieving the clamping and loosening of the protective net. During the installation and fixing of the protective net, the stable sliding of the sliding rod 5 is the key to ensuring the normal operation of the clamping mechanism. The external sliding connection of the sliding rod 5 is connected to the inside of the top cover 2. The top of the sliding rod 5 is fixedly connected to a pull plate 6. By applying a downward pulling force to the pull plate 6, the construction personnel drive the sliding rod 5 to slide downward within the top cover 2, thereby causing the pressure plate 8 to move downward, thus clamping the protective net. When disassembling or adjusting the protective net, by pulling the pull plate 6 upward, the sliding rod 5 is reset upward, releasing the clamping state of the protective net. The top cover 2 has a cavity 3 inside, which provides sufficient installation and movement space for the sliding rod 5, reset component, and other components of the clamping mechanism, ensuring that the components do not interfere with each other during operation. The sliding rod 5 is fitted with a reset component.

[0036] The reset assembly includes a connecting plate 4, which serves to fix and position the reset spring 7 in the reset assembly, ensuring that the reset spring 7 will not shift or loosen during operation, thus guaranteeing the normal operation of the reset assembly. The connecting plate 4 is externally fixedly connected to the inside of the top cover 2, and the top cover 2 has a cavity 3 inside. The sliding rod 5 is fitted with the reset spring 7. When the construction personnel pull the sliding rod 5 downward through the pull plate 6, the reset spring 7 is compressed and stores elastic potential energy. When the external force is released, the reset spring 7 releases the elastic potential energy, pushing the sliding rod 5 upward to reset, so that the clamping mechanism returns to its initial state, waiting for the next clamping operation. The bottom of the sliding rod 5 is fixedly connected to a pressure plate 8, which moves downward and presses tightly onto the protective net connecting component. Using its own pressure and anti-slip structure, the protective net is firmly fixed to the locking housing 1, effectively preventing the protective net from loosening or shifting on the slope.

[0037] Reference Figures 2 to 4 The lock housing 1 has a sliding connection to a protective net rope 9. The protective net rope 9 is usually made of multiple strands of high-strength steel wire twisted together, and has extremely high tensile strength. This connection method allows the protective net rope 9 to smoothly pass through the lock housing 1. Under the synergistic action of the clamping mechanism and the reinforcement mechanism, it achieves a tight connection with the lock assembly, providing a reliable fixed foundation for the entire protective net. The outer side of the retaining ring 12 is in contact with the outer side of the protective net rope 9. The outer side of the sliding rod 5 is slidably connected to the inside of the cavity 3. The outer side of the sliding rod 5 is slidably connected to the inside of the connecting plate 4. The outer side of the pressing plate 8 is slidably connected to the inside of the top cover 2. The outer side of the pressing plate 8 is in contact with the outer side of the protective net rope 9. The outer side of the pull plate 6 is in contact with the top of the top cover 2. One end of the return spring 7 is fixedly connected to the bottom of the connecting plate 4. The other end of the return spring 7 is fixedly connected to the top of the pressing plate 8. When the construction personnel pull the sliding rod 5 downward through the pull plate 6, causing the pressing plate 8 to clamp the protective net rope 9, the return spring 7 is compressed and stores elastic potential energy. When the external force is released, the return spring 7 releases the elastic potential energy, pushing the pressing plate 8 and the sliding rod 5 upward to reset, so that the clamping mechanism returns to its initial state. This connection method enables the return spring 7 to accurately provide restoring force during the operation of the clamping mechanism, ensuring that the clamping mechanism can work cyclically and stably, and facilitating the rapid installation and disassembly of the protective net.

[0038] Working principle: By pulling the pull plate 6, the pull plate 6 drives the pressure plate 8 to move through the sliding rod 5, which in turn causes the return spring 7 to deform. This allows the sliding rod 5 to separate the pressure plate 8 from the protective net rope 9, thus allowing the protective net rope 9 to be removed. When installing the protective net rope 9, by releasing the pull plate 6, the return spring 7 rebounds, which allows the sliding rod 5 to press the protective net rope 9 through the pressure plate 8, thus enabling the installation of the protective net rope 9.

[0039] By pulling the second pull plate 13, the second pull plate 13 drives the connecting rod 11 to move, causing the connecting rod 11 to separate the retaining ring 12 from the protective net rope 9, thereby allowing the protective net rope 9 to be taken out from the inside of the locking housing 1. When reinforcing the protective net rope 9, by pressing the second pull plate 13, the second pull plate 13 drives the connecting rod 11 to squeeze the retaining ring 12, thereby clamping the retaining ring 12 with the protective net rope 9, thereby achieving the extension and reinforcement of the protective net rope 9.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A fastening and locking assembly for preventing loosening of highway slope protection netting, comprising a locking housing (1), characterized in that: The top of the latch housing (1) is fixedly connected to a top cover (2), and the inside of the top cover (2) is slidably connected to a clamping mechanism. The four corners of the latch housing (1) are all fixedly connected to multiple reinforcing mechanisms. The clamping mechanism includes a sliding rod (5), which is slidably connected to the outside of the top cover (2). A pull plate (6) is fixedly connected to the top of the sliding rod (5). A cavity (3) is opened inside the top cover (2). A reset component is sleeved on the outside of the sliding rod (5). A pressure plate (8) is fixedly connected to the bottom of the sliding rod (5).

2. The anti-loosening fastening and locking assembly for highway slope protection netting according to claim 1, characterized in that: The reset assembly includes a connecting plate (4), which is fixedly connected to the outside of the top cover (2). The top cover (2) has a cavity (3) inside, and a reset spring (7) is sleeved on the outside of the sliding rod (5).

3. The anti-loosening fastening and locking assembly for highway slope protection netting according to claim 1, characterized in that: The reinforcement mechanism includes two extension plates (10), with connecting rods (11) slidably connected to the outside of the extension plates (10), and pull plates (13) fixedly connected to the far side of the two connecting rods (11), and retaining rings (12) fixedly connected to the near side of the two connecting rods (11).

4. The anti-loosening fastening locking assembly for highway slope protection netting according to claim 3, characterized in that: The lock housing (1) is slidably connected to a protective net rope (9), and the outside of the retaining ring (12) is in contact with the outside of the protective net rope (9).

5. The anti-loosening fastening and locking assembly for highway slope protection netting according to claim 2, characterized in that: The sliding rod (5) is externally slidably connected to the inside of the cavity (3), and the sliding rod (5) is externally slidably connected to the inside of the connecting plate (4).

6. The anti-loosening fastening and locking assembly for highway slope protection netting according to claim 4, characterized in that: The outside of the clamping plate (8) is slidably connected to the inside of the top cover (2), and the outside of the clamping plate (8) is in contact with the outside of the protective net rope (9).

7. The anti-loosening fastening locking assembly for highway slope protection netting according to claim 1, characterized in that: The outside of the pull plate (6) is in contact with the top of the top cover (2).

8. The anti-loosening fastening locking assembly for highway slope protection netting according to claim 2, characterized in that: One end of the reset spring (7) is fixedly connected to the bottom outer end of the connecting plate (4), and the other end of the reset spring (7) is fixedly connected to the top outer end of the clamping plate (8).