Rockfall protection device for highway construction

Abstract

The utility model provides a rockfall protection device for highway construction, which belongs to the technical field of highway construction and comprises a fixing frame, a reinforcing steel cable and a protective net cover, the protective net cover is fixed at the bottom end of the fixing frame, the reinforcing steel cable is fixed inside the fixing frame, a buffer structure is arranged on one side of the top end of the fixing frame, and mounting rings are fixed on the outer side of the fixing frame. A mounting seat is inserted into the mounting ring, an anchor rod is fixed to the bottom end of the mounting seat, a locking structure is arranged in the anchor rod, and the top end of the mounting seat is sleeved with a nut. According to the anchor rod, by rotating the screw block, the screw block pushes the push-pull rod downwards to open the fixing teeth, meanwhile, the fixing teeth are clamped into rock soil around the anchor rod, the anchor rod is not prone to loosening, the problem that in the prior art, an anchor rod is prone to loosening is solved, the contact area between the anchor rod and soil is increased, and the anchor rod is fixed more stably and not prone to loosening and falling off; the use safety of the device is guaranteed, and the stability of the device is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of highway construction technology, and more specifically, to a rockfall protection device for highway construction. Background Technology

[0002] Due to the complex terrain and varied geological conditions in mountainous areas, natural disasters such as landslides and rockfalls frequently occur, posing a significant threat to highway construction. Traditional rigid structures such as retaining walls and slope protection are used to protect against landslides and rockfalls, but these rigid structures are easily damaged when subjected to rockfall impacts and have poor adaptability to terrain, making them difficult to apply effectively in complex and varied mountainous terrains. Therefore, it is necessary to establish rockfall protection devices for highway construction to intercept and store falling rocks, reducing damage to highway facilities. At the same time, customized designs can be made according to different mountain terrains and protection requirements.

[0003] A search revealed Chinese patent application number 202220574839.6, which discloses a rockfall protection device for steep slopes of mountainous highways. The device includes a protective net; a connecting structure, a connecting rod structure, a limiting structure, a fixing structure, a protrusion, and a control structure. One end of the connecting structure is fixed to one end of the protective net. The connecting structure includes a connecting ring, a first fixing bolt, a first rotating shaft, and a rubber block. One end of the connecting ring is fixed to one end of the protective net. The sidewall of the connecting rod structure is installed inside the connecting ring. The fixing structure is installed at one end of the connecting rod. The limiting structure is penetrated by the connecting rod. The control structure is installed on the sidewall of the protective net. This invention provides a rockfall protection device for steep slopes of mountainous highways with advantages such as easy adjustment of the size of gaps in the protective net at local locations, convenient removal of fallen rocks, and prevention of continuous damage to the protective net from falling rocks.

[0004] While the aforementioned patents can achieve a certain level of protection, they still have the following shortcomings during use: because the devices are deployed outdoors for extended periods and are subject to prolonged rain erosion and corrosion, the anchor bolts are prone to loosening, which can lead to damage to other components such as the protective netting, further exacerbating safety hazards. At the same time, maintenance and repair costs increase, affecting the smooth progress of highway construction and operation.

[0005] Therefore, there is an urgent need for a rockfall protection device for highway construction to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to address the problem that anchor bolts are prone to loosening due to prolonged exposure to rainwater erosion, which can lead to damage to other components such as protective nets, further exacerbating safety hazards, increasing maintenance and repair costs, and affecting the smooth progress of highway construction and operation.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] A rockfall protection device for highway construction includes a fixing frame, reinforcing steel cables, and a protective net cover. The protective net cover is fixed to the bottom end of the fixing frame, the reinforcing steel cables are fixed inside the fixing frame, a buffer structure is provided on one side of the top of the fixing frame, mounting rings are fixed to the outer side of the fixing frame, mounting seats are inserted inside the mounting rings, anchor rods are fixed to the bottom end of the mounting seats, locking structures are provided inside the anchor rods, and nuts are fitted onto the top end of the mounting seats.

[0009] As a preferred technical solution of this application, the locking structure includes a push-pull rod, a fixing tooth, a push rod, a screw block, and a screw groove. The screw groove is opened inside the top of the mounting base, and a screw block is inserted inside the screw groove.

[0010] As a preferred technical solution of this application, the bottom end of the screw block is rotatably connected to a push-pull rod, and both sides of the bottom end of the push-pull rod are hinged with push rods, and the bottom end of the push rod is connected to a fixed tooth.

[0011] As a preferred technical solution of this application, the outer wall of the screw block is provided with an external thread, and the inside of the screw groove is provided with an internal thread that cooperates with the external thread.

[0012] As a preferred technical solution of this application, the buffer structure includes a connecting frame, a connecting rod, a buffer spring, a rubber pad, and a pad plate. The connecting rod is fixed to one side of the top of the fixing frame, and a pad plate is fixed to one side of the connecting rod.

[0013] As a preferred technical solution of this application, a rubber pad is fixed to one side of the pad, a connecting frame is fixed to one side of the rubber pad, and a buffer spring is installed on one side of the connecting frame.

[0014] As a preferred technical solution of this application, the connecting rod and the fixing frame are welded together as an integrated structure, and the rubber pads are symmetrically distributed on the vertical center line of the connecting frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the scheme of this application:

[0017] 1. By rotating the screw block, the screw block pushes the push-pull rod downward to open the fixing teeth. At the same time, the fixing teeth are locked into the rock and soil around the anchor rod, making the anchor rod less prone to loosening. This solves the problem of anchor rods being easy to loosen in the existing technology, increases the contact area between the anchor rod and the soil, makes the anchor rod more firmly fixed and less prone to loosening and falling, ensures the safety of the device and enhances the stability of the device.

[0018] 2. By using a buffer spring to block the rock and a rubber pad to cushion the impact of the rock, the device's impact on the device is reduced. This solves the problem of difficult handling of falling rocks in existing technologies, making it easier to buffer accidentally rolling rocks, reducing damage caused by falling rocks, and enhancing the safety of the device. Attached Figure Description

[0019] Figure 1 The three-dimensional structural diagram provided in this application;

[0020] Figure 2 This is a top view of the structure provided in this application;

[0021] Figure 3 A front view cross-sectional structural diagram of the locking structure provided in this application;

[0022] Figure 4 A three-dimensional structural diagram of the buffer structure provided in this application.

[0023] The diagram shows: 1. Fixing frame; 2. Reinforcing steel cable; 3. Buffer structure; 301. Connecting frame; 302. Connecting rod; 303. Buffer spring; 304. Rubber pad; 305. Pad plate; 4. Protective net cover; 5. Anchor bolt; 6. Mounting ring; 7. Nut; 8. Locking structure; 801. Push-pull rod; 802. Fixing tooth; 803. Push rod; 804. Threaded block; 805. Threaded groove; 9. Mounting base. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0025] like Figure 1-4 As shown in the figure, the rockfall protection device for highway construction proposed in this embodiment includes a fixed frame 1, a reinforcing steel cable 2 and a protective net cover 4. The protective net cover 4 is fixed to the bottom end of the fixed frame 1, the reinforcing steel cable 2 is fixed inside the fixed frame 1, a buffer structure 3 is provided on one side of the top of the fixed frame 1, and mounting rings 6 are fixed to the outer side of the fixed frame 1. Mounting seats 9 are inserted into the inside of the mounting rings 6, and anchor rods 5 are fixed to the bottom end of the mounting seats 9. A locking structure 8 is provided inside the anchor rods 5, and a nut 7 is sleeved on the top of the mounting seats 9.

[0026] Specifically, when using this rockfall protection device for highway construction, the anchor rod 5 is inserted into the ground and reinforced with the locking structure 8 to prevent it from loosening and falling off. Next, the installation ring 6 is placed on the outside of the mounting base 9, and the fixing frame 1 is placed on the ground. The installation ring 6 is then fixed to the outside of the mounting base 9 with the nut 7. The protective netting 4 is tightly attached to the slope surface to block the rock and soil, preventing rockfalls. Simultaneously, the reinforcing steel cable 2 reinforces the protective netting 4, making it less prone to breakage under stress. The buffer structure 3 also blocks falling rocks.

[0027] like Figure 1-4 As shown, in a preferred embodiment, based on the above method, the locking structure 8 further includes a push-pull rod 801, a fixing tooth 802, a push rod 803, a screw block 804, and a screw groove 805. The screw groove 805 is formed inside the top of the mounting base 9. The screw block 804 is inserted into the screw groove 805. The bottom end of the screw block 804 is rotatably connected to the push-pull rod 801. The push rod 803 is hinged to both sides of the bottom end of the push-pull rod 801. The bottom end of the push rod 803 is connected to the fixing tooth 802. The outer wall of the screw block 804 is provided with an external thread, and the inside of the screw groove 805 is provided with an internal thread that cooperates with the external thread.

[0028] Specifically, when using the rockfall protection device for highway construction: after inserting the anchor rod 5 into the ground, by rotating the screw block 804, the screw block 804 moves downward through the thread inside the screw groove 805. Then, the screw block 804 pushes the push rod 801 downward, so that the push rod 801 opens the fixing tooth 802 through the push rod 803, so that the fixing tooth 802 is engaged in the rock and soil around the anchor rod 5, increasing the contact area between the anchor rod 5 and the rock and soil, making the anchor rod 5 less prone to loosening.

[0029] like Figure 1-4 As shown, in a preferred embodiment, based on the above method, the buffer structure 3 further includes a connecting frame 301, a connecting rod 302, a buffer spring 303, a rubber pad 304, and a pad plate 305. The connecting rod 302 is fixed to one side of the top of the fixed frame 1. The pad plate 305 is fixed to one side of the connecting rod 302. The rubber pad 304 is fixed to one side of the pad plate 305. The connecting frame 301 is fixed to one side of the rubber pad 304. The buffer spring 303 is installed on one side of the connecting frame 301. The connecting rod 302 and the fixed frame 1 are welded together as an integral structure. The rubber pads 304 are symmetrically distributed on the vertical center line of the connecting frame 301.

[0030] Specifically, when using this rockfall protection device for highway construction: the connecting rod 302 supports the connecting frame 301, making the connecting frame 301 vertical on the slope. When rocks slide down the slope, the buffer spring 303 blocks the rocks, and the elasticity of the rubber pad 304 buffers the impact of the rocks, reducing the impact of the rocks on the device.

[0031] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A rockfall protection device for highway construction, comprising a fixing frame (1), reinforcing steel cables (2), and a protective net cover (4), characterized in that, The bottom end of the fixed frame (1) is fixed with a protective net cover (4), the inside of the fixed frame (1) is fixed with a reinforcing steel cable (2), a buffer structure (3) is provided on one side of the top of the fixed frame (1), and mounting rings (6) are fixed on the outside of the fixed frame (1). A mounting seat (9) is inserted inside the mounting ring (6), an anchor rod (5) is fixed at the bottom end of the mounting seat (9), a locking structure (8) is provided inside the anchor rod (5), and a nut (7) is fitted on the top of the mounting seat (9).

2. The rockfall protection device for highway construction according to claim 1, characterized in that, The locking structure (8) includes a push-pull rod (801), a fixed tooth (802), a push rod (803), a screw block (804), and a screw groove (805). The screw groove (805) is opened inside the top of the mounting base (9), and the screw block (804) is inserted inside the screw groove (805).

3. A rockfall protection device for highway construction according to claim 2, characterized in that, The bottom end of the screw block (804) is rotatably connected to a push-pull rod (801), and push rods (803) are hinged to both sides of the bottom end of the push-pull rod (801). The bottom end of the push rod (803) is connected to a fixed tooth (802).

4. A rockfall protection device for highway construction according to claim 2, characterized in that, The outer wall of the screw block (804) is provided with an external thread, and the inside of the screw groove (805) is provided with an internal thread that cooperates with the external thread.

5. A rockfall protection device for highway construction according to claim 1, characterized in that, The buffer structure (3) includes a connecting frame (301), a connecting rod (302), a buffer spring (303), a rubber pad (304), and a pad (305). The connecting rod (302) is fixed to one side of the top of the fixing frame (1), and a pad (305) is fixed to one side of the connecting rod (302).

6. A rockfall protection device for highway construction according to claim 5, characterized in that, A rubber pad (304) is fixed to one side of the pad (305), a connecting frame (301) is fixed to one side of the rubber pad (304), and a buffer spring (303) is installed on one side of the connecting frame (301).

7. A rockfall protection device for highway construction according to claim 5, characterized in that, The connecting rod (302) and the fixing frame (1) are welded together as an integral structure, and the rubber pads (304) are symmetrically distributed on the vertical center line of the connecting frame (301).

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