A buffer passive protection net device

Abstract

This utility model relates to the technical field of slope protection equipment, specifically a buffer passive protection net device. It is installed on a slope, with multiple sets of steel columns spaced horizontally along the slope. Ring nets and grid nets are installed on the steel columns. A base is fixedly installed at the bottom of each steel column, and the base is anchored to the slope using anchor bolts. An arc-shaped spring steel plate is installed at the bottom of each steel column. Mounting plates are fixedly installed on both the steel column and the base. The mounting plates have through holes into which adjusting bolts are inserted. Both ends of the arc-shaped spring steel plate are respectively fitted onto a set of adjusting bolts. An upward-pulling component is located on the front side of the steel column and is connected in series with a first pressure-reducing spring. Through the arc-shaped spring steel plate and the first pressure-reducing spring, when the ring net and steel column are impacted, the spring steel and the first pressure-reducing spring can undergo elastic deformation within their elastic limits, thus allowing for repeated impacts and reducing the frequency of maintenance and replacement, thereby reducing maintenance workload.

Description

Technical Field

[0001] This application relates to the field of slope protection equipment, specifically a buffer passive protection net device. Background Technology

[0002] Currently, whether it is a man-made slope or a naturally formed slope, it may be prone to geological disasters such as landslides and rockfalls when subjected to long-term rain erosion or strong winds, which can have a significant impact on people's lives and property. Therefore, passive protection nets are often used to protect slopes from rockfalls.

[0003] A utility model patent with publication number CN221956753U discloses a passive flexible protective net for slope protection, comprising multiple sets of spaced steel columns, anchor ropes set on the slope and fixing the steel columns, multiple sets of steel columns connected by support rope groups, a ring net and a grid net arranged between the multiple sets of steel columns and the support rope groups, and a reinforced gabion at the front end of the grid net to initially block falling rocks. The reinforced gabion initially blocks falling rocks and reduces their energy. The decelerated rocks enter the protective net, where the ring net and grid net buffer the falling rocks. Simultaneously, the pressure-reducing rings on the anchor rods reduce the impact force of the rocks on the steel columns, causing the rocks to stop stably in front of the ring net, thereby improving the protective effect of the passive flexible protective net.

[0004] The device is equipped with a reinforced gabion and a ring mesh. The rolling stones on the slope are initially blocked by the reinforced gabion, and then fall to the ring mesh and grid below. The pressure-reducing ring deforms when the rolling stones impact the ring mesh and steel columns, thereby relieving the impact force. However, the deformation of the pressure-reducing ring after the impact cannot be recovered. In the later maintenance, the pressure-reducing ring and anchor rope need to be replaced frequently, resulting in a large amount of maintenance work. Utility Model Content

[0005] In view of the problem that the maintenance workload of existing technologies is large and inconvenient, this utility model provides a buffer passive protection net device.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] This utility model provides a buffer passive protection net device, which is installed on a slope. Multiple sets of steel columns are installed at intervals along the slope, and ring nets and grid nets are installed on the steel columns. Its features are:

[0008] A base is fixedly installed at the bottom of the steel column. The base is installed on the slope by anchor bolts. An arc-shaped spring steel plate is installed on the bottom back side of the steel column. Mounting plates are fixedly installed on both the steel column and the base. The mounting plates have through holes, and adjusting bolts are inserted into the through holes. The two ends of the arc-shaped spring steel plate are respectively fitted onto a set of adjusting bolts.

[0009] It also includes an upward pull assembly, which is disposed on the front side of the steel column and connected in series with a first pressure relief spring.

[0010] Preferably, the pull-up assembly includes a pull-up anchor rope and a wire rope anchor. The wire rope anchor is installed obliquely on the slope, and the pull-up anchor rope is positioned between the steel column and the wire rope anchor. The two ends of the pull-up anchor rope are connected to the top of the steel column and the wire rope anchor, respectively. The slope has an inclined anchor hole above each set of bases. The wire rope anchor is inserted into the anchor hole and reinforced with concrete. Then, the two ends of the pull-up anchor rope are connected to the wire rope anchor and the top of the steel column, respectively, thereby further limiting the position of the steel column and enhancing its stability.

[0011] Preferably, the upper anchor rope is connected in series with the first pressure-reducing spring. The upper anchor rope and the first pressure-reducing spring are connected in series so that when the steel column is impacted by falling rocks and shakes, the upper anchor rope is pulled, and the other end of the upper anchor rope will stretch the first pressure-reducing spring. The elastic deformation of the first pressure-reducing spring further alleviates the impact of falling rocks and improves the impact resistance of the steel column.

[0012] Preferably, an auxiliary rope is also provided between the top of the steel column and the wire rope anchor. The two ends of the auxiliary rope are connected to the top of the steel column and the wire rope anchor, respectively. The length of the auxiliary rope is greater than the total length of the pull-up anchor rope and the first decompression spring after extension. The auxiliary rope can help limit the steel column when the impact force on the steel column exceeds the elastic limit of the first decompression spring, so as to resist the impact force after being buffered by the first decompression spring.

[0013] Preferably, guide plates are fixedly installed on both sides of the top of the steel column. The guide plates have through holes, and one end of the upper anchor rope and the auxiliary rope near the steel column are inserted into the through holes. The guide plates limit the upper anchor rope and the auxiliary rope passing through the through holes, ensuring the stability of the connection between the upper anchor rope and the auxiliary rope and the steel column.

[0014] Preferably, the guide plate has rounded surfaces at the openings on both sides of the perforation. The rounded surfaces at the perforation openings prevent the upper anchor rope and auxiliary rope from being sheared at the perforation openings, thus ensuring the service life of the upper anchor rope and auxiliary rope.

[0015] Preferably, the system also includes a support rope disposed between adjacent steel columns. The support rope is connected in series with a second pressure-reducing spring. The top of the support rope is wound around the top of the steel column, and the bottom is wound around the base. The second pressure-reducing spring is disposed on the back side of the steel column. By winding the support rope around two adjacent sets of steel columns, the steel columns are provided with auxiliary support. When one set of steel columns is impacted, the support rope and the second pressure-reducing spring can pull and limit its movement, ensuring the stability of the steel column. Furthermore, placing the second pressure-reducing spring on the back side of the steel column can prevent it from being directly hit by falling rocks, ensuring the normal operation of the second pressure-reducing spring.

[0016] Preferably, the number of through holes is multiple sets and spaced apart on the mounting plate. By setting multiple sets of through holes, the position of the adjusting bolt can be adjusted, thereby adjusting the position of the arc-shaped spring steel plate and ensuring effective support for the steel column.

[0017] The advantages of adopting the above technical solution are:

[0018] This utility model includes a steel column with a base fixed at its bottom. The base is anchored to the slope using anchor bolts. An arc-shaped spring steel plate is installed on the bottom back side of the steel column. Mounting plates are fixed on both the steel column and the base, and the mounting plates have through holes into which adjusting bolts are inserted. Both ends of the arc-shaped spring steel plate are fitted onto a set of adjusting bolts. Through the arc-shaped spring steel plate and the first decompression spring, the spring steel and the first decompression spring can undergo elastic deformation within their elastic limits when the ring net and the steel column are impacted. This allows the steel plate to withstand multiple impacts, reducing the frequency of maintenance and replacement, and thus reducing maintenance workload. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of this utility model is shown;

[0021] Figure 2 A partial structural schematic diagram of this utility model is shown;

[0022] Figure 3 A partial structural schematic diagram of this utility model is shown;

[0023] Figure 4 A partially enlarged view of point A in this utility model is shown;

[0024] Figure 5 A partial structural schematic diagram of the present invention is shown.

[0025] The components are: 1. Steel column; 100. Anchor rod; 101. Mounting plate; 102. Through hole; 2. Ring net; 3. Base; 4. Curved spring steel plate; 5. Pull-up anchor rope; 6. First pressure-reducing spring; 7. Auxiliary rope; 8. Guide plate; 801. Perforation; 9. Support rope; 901. Second pressure-reducing spring. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] like Figure 1-5 As shown in the figure, this utility model embodiment discloses a buffer passive protection net device, which is installed on a slope. Multiple sets of steel columns 1 are installed at intervals on the slope. A ring net 2 and a grid net are installed on the steel column 1. A base 3 is fixedly installed at the bottom of the steel column 1. The base 3 is installed on the slope by anchor bolts 100. An arc-shaped spring steel plate 4 is provided on the bottom of the back side of the steel column 1. An installation plate 101 is fixedly installed on both the steel column 1 and the base 3. The installation plate 101 is provided with a through hole 102. An adjusting bolt is inserted into the through hole 102. The two ends of the arc-shaped spring steel plate 4 are respectively sleeved on a set of adjusting bolts. It also includes an upward pull assembly. The upward pull assembly is located on the front side of the steel column 1 and is connected in series with a first pressure reducing spring 6.

[0028] In at least one embodiment, the pull-up assembly includes a pull-up anchor rope 5 and a wire rope anchor rod 100. The wire rope anchor rod 100 is installed obliquely on the slope. The pull-up anchor rope 5 is positioned between the steel column 1 and the wire rope anchor rod 100. The two ends of the pull-up anchor rope 5 are respectively connected to the top of the steel column 1 and the wire rope anchor rod 100. The slope has an oblique anchor hole above each set of bases 3. The wire rope anchor rod 100 is inserted into the anchor hole and poured with concrete. Then, the two ends of the pull-up anchor rope 5 are respectively connected to the wire rope anchor rod 100 and the top of the steel column 1, thereby further limiting the position of the steel column 1 and enhancing the stability of the steel column 1.

[0029] In at least one embodiment, the upper anchor rope 5 is connected in series with the first decompression spring 6. The upper anchor rope 5 and the first decompression spring 6 are connected in series so that when the steel column 1 is impacted by falling rocks and shakes, the upper anchor rope 5 is pulled, and then the other end of the upper anchor rope 5 will stretch the first decompression spring 6. The elastic deformation of the first decompression spring 6 further alleviates the impact of falling rocks and improves the impact resistance of the steel column 1.

[0030] In at least one embodiment, an auxiliary rope 7 is also provided between the top of the steel column 1 and the wire rope anchor 100. The two ends of the auxiliary rope 7 are connected to the top of the steel column 1 and the wire rope anchor 100, respectively. The length of the auxiliary rope 7 is greater than the total length of the pull-up anchor rope 5 and the first decompression spring 6 after extension. The auxiliary rope 7 is provided so that when the impact force on the steel column 1 exceeds the elastic limit of the first decompression spring 6, the auxiliary rope 7 can assist in limiting the steel column 1, so as to resist the impact force after being buffered by the first decompression spring 6.

[0031] In at least one embodiment, guide plates 8 are fixedly provided on both sides of the top of the steel column 1. The guide plates 8 are provided with through holes 801. One end of the upper anchor rope 5 and the auxiliary rope 7 near the steel column 1 are both passed through the through holes 801. The guide plates 8 limit the upper anchor rope 5 and the auxiliary rope 7 passing through the through holes 801, ensuring the stability of the connection between the upper anchor rope 5 and the auxiliary rope 7 and the steel column 1.

[0032] In at least one embodiment, the guide plate 8 has rounded surfaces at the openings on both sides of the perforation 801. The rounded surfaces at the openings of the perforation 801 prevent the pull-up anchor rope 5 and the auxiliary rope 7 from being sheared at the openings of the perforation 801, thus ensuring the safety and service life of the pull-up anchor rope 5 and the auxiliary rope 7.

[0033] In at least one embodiment, a support rope 9 is further provided between adjacent steel columns 1. The support rope 9 is connected in series with a second pressure-reducing spring 901. The top of the support rope 9 is wrapped around the top of the steel column 1, and the bottom is wrapped around the base 3. The second pressure-reducing spring 901 is provided on the back side of the steel column 1. By wrapping the support rope 9 around two adjacent sets of steel columns 1, the steel columns 1 are provided with auxiliary support. When one set of steel columns 1 is impacted, the support rope 9 and the second pressure-reducing spring 901 can pull and limit it, ensuring the stability of the steel column 1. Furthermore, placing the second pressure-reducing spring 901 on the back side of the steel column 1 can prevent the second pressure-reducing spring 901 from being directly hit by falling rocks, ensuring the normal operation of the second pressure-reducing spring 901.

[0034] In at least one embodiment, the number of through holes 102 is multiple sets and spaced apart on the mounting plate 101. By setting multiple sets of through holes 102, the position of the adjusting bolt can be adjusted, thereby adjusting the position of the arc-shaped spring steel plate 4 to ensure effective support for the steel column 1.

[0035] When protecting against falling rocks on the slope, workers arrange multiple sets of steel columns 1 horizontally at intervals along the slope and pour concrete foundations at the installation locations of the steel columns 1. The base 3 at the bottom of the steel columns 1 is then connected and fixed to the concrete foundation using anchor bolts 100. The ring mesh 2 and grid mesh on the multiple sets of steel columns 1 block falling rocks along the slope. An upward-pulling component is installed on the front side of the steel column 1, and a first pressure-reducing spring 6 is connected in series with the upward-pulling component. By connecting the two ends of the arc-shaped spring steel plate 4 to the mounting plates 101 on the steel column 1 and the base 3 respectively, when the steel column 1 is impacted by falling rocks, the bottom... The arc-shaped spring steel plate 4 can support the steel column 1. When the ring net 2 and the steel column 1 are impacted by falling rocks, the steel column 1 shakes along the base 3 at the bottom. At this time, the arc-shaped spring steel plate 4 is compressed, and the first decompression spring 6 connected in series on the upper pull assembly is stretched, which causes the arc-shaped spring steel plate 4 and the first decompression spring 6 to deform. The impact of falling rocks is mitigated by the deformation of the arc-shaped spring steel plate 4 and the first decompression spring 6. When the ring net 2 and the steel column 1 are impacted, the arc-shaped spring steel plate 4 and the first decompression spring 6 can undergo elastic deformation within the elastic limit, so that they can withstand multiple impacts and be used, reducing the frequency of maintenance and replacement, thereby reducing the maintenance workload.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A passive buffer protection netting device, installed on a slope, wherein multiple sets of steel columns are installed at intervals on the slope, and ring nets and grid nets are installed on the steel columns, characterized in that: The steel column is rotatably mounted on a base, which is installed on the slope by anchor bolts. An arc-shaped spring steel plate is installed on the bottom back side of the steel column. Mounting plates are fixedly installed on both the steel column and the base. The mounting plates have through holes, and adjusting bolts are inserted into the through holes. The two ends of the arc-shaped spring steel plate are respectively fitted onto a set of adjusting bolts. It also includes an upward pull assembly, which is disposed on the front side of the steel column and connected in series with a first pressure relief spring.

2. The buffer passive protection net device according to claim 1, characterized in that: The pull-up assembly includes a pull-up anchor rope and a wire rope anchor rod. The wire rope anchor rod is installed at an angle on the slope. The pull-up anchor rope is set between the steel column and the wire rope anchor rod. The two ends of the pull-up anchor rope are connected to the top of the steel column and the wire rope anchor rod, respectively.

3. The buffer passive protection net device according to claim 2, characterized in that: The first pressure-reducing spring is connected in series with the upper anchor rope.

4. A buffer passive protection net device according to claim 2, characterized in that: An auxiliary rope is also provided between the top of the steel column and the wire rope anchor rod, with both ends of the auxiliary rope connected to the top of the steel column and the wire rope anchor rod respectively.

5. A buffer passive protection net device according to claim 4, characterized in that: Guide plates are fixedly installed on both sides of the top of the steel column. The guide plates have through holes, and one end of the upper anchor rope and the auxiliary rope on the side closest to the steel column are inserted into the through holes.

6. A buffer passive protection net device according to claim 5, characterized in that: The guide plate has rounded surfaces at the openings on both sides of the perforation.

7. A buffer passive protection net device according to claim 3, characterized in that: It also includes a support rope installed between adjacent steel columns, wherein the support rope is connected in series with a second pressure-reducing spring, the top of the support rope is wrapped around the top of the steel column, and the bottom is wrapped around the base; The second pressure-reducing spring is located on the back side of the steel column.

8. A buffer passive protection net device according to claim 1, characterized in that: The number of through holes is in multiple groups and spaced apart on the mounting plate.

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