Fixed type special-shaped structure fence sand retaining wall

Abstract

The application relates to the field of wind prevention and sand fixation, in particular to a fixed-type special-shaped structure fence sand retaining wall, which comprises a stand, a frame and fence bars, the stand is arranged at the two sides of the frame, the frame is slidably connected with the stand, the fence bars are arranged in a plurality of pieces, the plurality of fence bars are vertically arranged in the frame, and the fence bars are fixedly connected with the frame; the outer surface of the fence bar is a twisted complex curved surface type, the bottom end to the top end of the fence bar is uniformly twisted at a consistent twist angle along with the height rise of the fence bar; the fence bar comprises a center rod and twisted blocks, the twisted blocks are arranged in a plurality of pieces, each twisted block is sleeved on the center rod, and each twisted block is fixedly connected with the center rod, so that the damage of wind sand to the sand retaining wall is reduced, and the service life of the sand retaining wall is prolonged.

Description

Technical Field

[0001] This application relates to the field of windbreak and sand fixation, and in particular to a fixed irregular structure fence sand retaining wall. Background Technology

[0002] With the rapid economic development in western my country, urban infrastructure construction, including railways and highways, is being carried out extensively in the deserts and Gobi regions of Northwest my country. These areas are characterized by sparse vegetation and frequent sandstorms. Since the opening of the Lanzhou-Xinjiang Railway and the Qinghai-Tibet Railway, sandstorms have become a significant threat to the safe operation of trains. Train stoppages caused by sandstorms burying railways have resulted in enormous economic losses for travelers and railway transportation.

[0003] Existing engineering measures for sand control mainly include sand stabilization and sand-blocking measures, with sand-blocking measures being more widely used. Sand-blocking measures include concrete sleeper sand-retaining walls, high vertical sand barriers made of PE mesh, and reed sand-blocking fences, etc. These engineering sand control measures have played a certain role in existing railway and highway wind and sand disaster prevention projects. Because sand-retaining walls have a large windward area, their stability is required to be high.

[0004] The existing technical solutions mentioned above have the following drawbacks: wind and sand can easily damage the sand retaining wall, resulting in a short service life for the sand retaining wall. Summary of the Invention

[0005] In order to reduce the damage of wind and sand to sand-retaining walls and extend their service life, this application provides a fixed, irregularly shaped fence-type sand-retaining wall.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] A fixed, irregularly shaped fence retaining wall includes columns, a frame, and fence posts. The columns are set on both sides of the frame, and the frame is slidably connected to the columns. Several fence posts are set, and the fence posts are all vertically set inside the frame and fixedly connected to the frame.

[0008] The outer surface of the fence post is designed as a complex curved surface with twist. As the height of the fence post increases, the twist angle is uniform from the bottom to the top of the fence post. The fence post includes a central post and twisted blocks. Several twisted blocks are provided, and each twisted block is fitted on the central post and fixedly connected to the central post.

[0009] By adopting the above scheme, and by setting twisted fence bars within the frame, when the fence bars are blown by the wind, the twisted curved surface of the outer surface of the fence bars ensures that the degree of twist of each cross-section is a fixed value as the height increases. This twisted curved surface causes the frequency of airflow vortex shedding at different heights to be different, preventing the sand and dust flow from resonating with the fence bars. This effectively reduces the wind resistance when the sand and dust flow passes through the sand retaining wall, reduces the shaking and damage caused by the sand and dust flow to the sand retaining wall, and plays a role in vibration isolation and energy dissipation. It can both reduce the intensity of the sand and dust flow and protect the sand retaining wall, reduce the damage caused by sand and dust to the sand retaining wall, and extend the service life of the sand retaining wall. At the same time, when the sand and dust flow passes through the fence bars, the sand and dust flow generates an upward rotating airflow along with the fence bars, thereby generating vortices above the frame. These vortices greatly reduce the intensity of the sand and dust flow. Setting the fence bars as several twisted blocks improves the ease of fence bar manufacturing.

[0010] Furthermore, the twisted block is detachably and fixedly connected to the central rod, and a fixing bolt is provided on the twisted block. The fixing bolt passes through the twisted block and abuts against the central rod, and the fixing bolt is threadedly connected to the twisted block.

[0011] By adopting the above solution, and by setting fixing bolts to pass through the twisted block and fix the twisted block to the center rod, when the surface of the fence is damaged, only the damaged twisted block needs to be replaced, instead of replacing the entire fence, thus reducing maintenance costs.

[0012] Furthermore, a wind wall forming device is provided at the top of the frame. The wind wall forming device includes a wind shroud, a crossbeam, and a connecting rod. The wind shroud is streamlined and located at the top of the frame. The wind shroud is trumpet-shaped, with an air inlet at the bottom and an air outlet at the top. The cross-sectional area of ​​the air inlet is larger than that of the air outlet. The wind shroud is used to constrain the flow direction of the airflow guided by the fence. The crossbeam is located inside the wind shroud, and its two ends are fixedly connected to the two side walls of the wind shroud. The connecting rod is located between the frame and the crossbeam, and its two ends are fixedly connected to the frame and the crossbeam, respectively.

[0013] By adopting the above scheme, the upward rotating airflow generated by the fence is collected by the wind-collecting hood, which in turn collects the wind blowing upwards when it encounters the fence. The wind enters the wind-collecting hood through the air inlet and then flows out of the wind-collecting hood through the air outlet. Since the cross-sectional area of ​​the air inlet is larger than that of the air outlet, the wind accelerates at the air outlet, forming a wind wall at the top of the frame to block the passing sand and dust. The stronger the wind, the more stable the wind wall becomes, creating a "using the force against the force" effect. At the same time, by utilizing this "soft" sand-blocking structure, the wind wall can not only block sand but also prevent the sand and dust from damaging the sand-blocking structure. Meanwhile, the wind blows the wind-collecting hood, which slides upwards along the columns through the crossbeams and connecting rods, thereby lifting the frame and preventing the frame from being buried by sand.

[0014] Furthermore, the connecting rod includes a first rod and a second rod. The first rod is fixedly connected to the frame, and the second rod is fixedly connected to the crossbeam. The end of the first rod away from the frame is provided with a insertion groove, and the end of the second rod away from the crossbeam is fixedly connected with an insertion rod. The insertion rod is inserted into the insertion groove, and a spring is provided in the insertion groove. The two ends of the spring are fixedly connected to the bottom wall of the insertion groove and the insertion rod, respectively.

[0015] By adopting the above scheme, when the wind shroud is blown by the wind, it will generate an upward force. The wind shroud applies an upward force to the second rod through the crossbeam. The second rod drives the insertion rod to slide in the insertion slot. The insertion rod drives the spring to stretch, thereby realizing the elastic connection between the frame and the wind shroud, making the wind shroud more stable when constraining the wind force.

[0016] Furthermore, an anti-detachment component is provided between the insertion rod and the insertion slot. The anti-detachment component includes an anti-detachment slot, a slider, and an anti-detachment block. The anti-detachment slot is formed on the side wall of the insertion slot. The slider is fixedly connected to the insertion rod and is located inside the anti-detachment slot. The slider is slidably connected to the anti-detachment slot. An anti-detachment block is provided at the end of the anti-detachment slot away from the bottom wall of the insertion slot. The anti-detachment block is fixedly connected to the anti-detachment slot.

[0017] By adopting the above solution, when the insertion rod slides in the insertion slot, the insertion rod drives the slider to slide in the anti-detachment slot. When the slider slides along the anti-detachment slot to abut against the anti-detachment block, the anti-detachment block prevents the slider from continuing to slide, thus avoiding the insertion rod from separating from the insertion slot and causing the wind shield to separate from the frame.

[0018] Furthermore, the wind wall forming device also includes a wind wall reinforcing cover, which is fixed to the side wall of the wind shroud. The air inlet of the wind wall reinforcing cover faces the windward side, and the air outlet of the wind wall reinforcing cover is close to the air outlet of the wind shroud. The wind wall reinforcing cover is used to guide the flow of air to form a vertical wind wall.

[0019] By adopting the above scheme, a windbreak reinforcement cover is set up, and the air inlet of the windbreak reinforcement cover faces the windward side to receive the wind and sand flow. By using the windbreak reinforcement cover to constrain and guide the wind, the wind forms a vertical windbreak wall, thereby enhancing the effect of the windbreak wall, improving the utilization of the wind, increasing the buoyancy of the wind on the frame, and further preventing the wind and sand from burying the sand-blocking wall.

[0020] Furthermore, a sliding ring is fitted on the outer side of the column, and the sliding ring is fixedly connected to the frame.

[0021] By adopting the above solution, the frame drives the sliding ring to slide upward along the column. The sliding ring reduces the friction between the frame and the column during sliding, and improves the convenience of the frame's movement.

[0022] Furthermore, an anti-detachment plate is provided at the top of the column, and the anti-detachment plate is fixedly connected to the column.

[0023] By adopting the above solution, when the sliding ring comes into contact with the anti-detachment plate, the anti-detachment plate is used to prevent the sliding ring from separating from the column, thus preventing the sand retaining wall from losing its sand-retaining effect.

[0024] Furthermore, an elastic element is provided at the bottom end of the anti-detachment plate. The elastic element is sleeved on the outside of the column and is fixedly connected to the anti-detachment plate. The elastic element is used to reduce the impact between the sliding ring and the anti-detachment plate.

[0025] By adopting the above solution, when the sliding ring slides to the top of the column and comes into contact with the elastic element, the elasticity of the elastic element ensures that the sliding ring and the elastic element make soft contact, thus avoiding direct impact between the sliding ring and the anti-detachment plate, which would cause the sliding ring to deform and affect its sliding along the column, or cause the sliding ring to break at the connection with the frame, leading to the failure of the sand retaining wall and improving the service life of the sand retaining wall.

[0026] In summary, this application has the following technical effects:

[0027] 1. By incorporating twisted fence bars within the frame, when the fence bars are blown by the wind, the twisted curved surface of the outer surface ensures that the degree of twist at each cross-section remains constant as the height increases. This twisted surface causes the frequency of airflow vortex shedding at different heights, preventing the sand and dust flow from resonating with the fence bars. This effectively reduces wind resistance when the sand and dust flow passes through the sand retaining wall, reducing the shaking and damage caused by the sand and dust flow. It also serves as a vibration isolation and energy dissipation mechanism, reducing the intensity of the sand and dust flow, protecting the sand retaining wall, minimizing damage, and extending its service life. Simultaneously, as the sand and dust flow passes over the fence bars, they generate an upward rotating airflow, creating vortices above the frame. These vortices significantly reduce the intensity of the sand and dust flow. Furthermore, designing the fence bars as several twisted blocks improves the ease of manufacturing the fence bars.

[0028] 2. By installing a wind-collecting hood at the top of the frame, the upward rotating airflow generated by the fence bars is collected by the wind-collecting hood. At the same time, the wind-collecting hood collects the wind blowing upward when it encounters the fence bars. The wind enters the wind-collecting hood through the air inlet and then flows out of the wind-collecting hood through the air outlet. Since the cross-sectional area of ​​the air inlet is larger than that of the air outlet, the wind accelerates at the air outlet, forming a wind wall at the top of the frame to block the passing sand and dust. The stronger the wind, the more stable the wind wall becomes, creating a "using the force against the force" effect. At the same time, by utilizing this "soft" sand-blocking structure, the wind wall can not only block sand but also prevent the sand and dust from damaging the sand-blocking structure. Meanwhile, the wind blowing the wind-collecting hood causes it to slide upward along the columns through the crossbeams and connecting rods, thereby lifting the frame and preventing the frame from being buried by sand.

[0029] 3. By setting up a windbreak reinforcement cover with its air inlet facing the windward side to receive the sand and dust flow, the windbreak reinforcement cover constrains and guides the wind, forming a vertical windbreak wall, thereby enhancing the effect of the windbreak wall, improving the utilization of the wind, increasing the buoyancy of the wind on the frame, and further preventing the sand and dust from burying the sand-blocking wall. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the fixed irregular-shaped fence sand retaining wall structure of this application;

[0031] Figure 2 This is a structural schematic diagram of the fence in this application;

[0032] Figure 3 This is a schematic diagram of the wind wall forming device installed on the fence in this application;

[0033] Figure 4 This is a structural schematic diagram showing the wind wall reinforcement cover and the wind beam cover;

[0034] Figure 5 This is a structural diagram showing the internal structure of the connecting rod.

[0035] In the diagram, 1. Column; 2. Frame; 3. Fence post; 31. Center post; 32. Twisted block; 33. Fixing bolt; 4. Wind wall forming device; 41. Wind shroud; 411. Air inlet; 412. Air outlet; 42. Crossbeam; 43. Connecting rod; 431. First rod; 432. Second rod; 433. Spring; 434. Insert rod; 5. Anti-detachment component; 51. Anti-detachment groove; 52. Slider; 53. Anti-detachment block; 6. Wind wall reinforcement cover; 61. Air inlet; 62. Air outlet; 7. Sliding ring; 8. Anti-detachment plate; 9. Elastic element; 10. Wing plate. Detailed Implementation

[0036] The present application will be further described in detail below with reference to the accompanying drawings.

[0037] Reference Figure 1 and Figure 2 This embodiment provides a fixed irregular structure fence sand barrier wall, including a column 1, a frame 2 and fence posts 3. The column 1 is set on both sides of the frame 2, and the frame 2 is slidably connected to the column 1. Several fence posts 3 are provided, and the fence posts 3 are all vertically set inside the frame 2. The fence posts 3 are fixedly connected to the frame 2. A wind wall forming device 4 is provided at the top of the frame 2, so that a wind wall is formed at the top of the frame 2, thereby enhancing the wind resistance effect of the sand barrier wall.

[0038] Reference Figure 2 and Figure 3The outer surface of the fence post 3 is designed as a complex curved surface with twists. As the height of the fence post 3 increases, the fence post 3 is uniformly twisted from the bottom to the top with a consistent twist angle. The fence post 3 includes a central post 31 and twisted blocks 32. Several twisted blocks 32 are provided, and each twisted block 32 is sleeved on the central post 31 and fixedly connected to the central post 31. In this embodiment, the twisted blocks 32 are detachably fixedly connected to the central post 31. A fixing bolt 33 is provided on the twisted block 32. The fixing bolt 33 passes through the twisted block 32 and abuts against the central post 31. The fixing bolt 33 is threadedly connected to the twisted block 32.

[0039] Reference Figure 3 and Figure 4 The wind wall forming device 4 includes a wind shroud 41, a crossbeam 42, and a connecting rod 43. The wind shroud 41 is streamlined and located at the top of the frame 2. The wind shroud 41 is trumpet-shaped, with an air inlet 411 at the bottom and an air outlet 412 at the top. The cross-sectional area of ​​the air inlet 411 is larger than that of the air outlet 412. The wind shroud 41 is used to constrain the flow direction of the airflow guided by the fence bar 3. The crossbeam 42 is located inside the wind shroud 41, and its two ends are fixedly connected to the two side walls of the wind shroud 41. The connecting rod 43 is located between the frame 2 and the crossbeam 42, and its two ends are fixedly connected to the frame 2 and the crossbeam 42.

[0040] Reference Figure 5 The connecting rod 43 includes a first rod 431 and a second rod 432. The first rod 431 is fixedly connected to the frame 2, and the second rod 432 is fixedly connected to the crossbeam 42. The end of the first rod 431 away from the frame 2 has a insertion groove, and the end of the second rod 432 away from the crossbeam 42 has an insertion rod 434 fixedly connected to it. The insertion rod 434 is inserted into the insertion groove. A spring 433 is installed in the insertion groove, and the two ends of the spring 433 are respectively connected to the bottom wall of the insertion groove and the insertion rod. 434 is fixedly connected; an anti-detachment component 5 is provided between the insertion rod 434 and the insertion slot. The anti-detachment component 5 includes an anti-detachment groove 51, a slider 52 and an anti-detachment block 53. The anti-detachment groove 51 is opened on the side wall of the insertion slot. The slider 52 is fixedly connected to the insertion rod 434. The slider 52 is located in the anti-detachment groove 51 and is slidably connected to the anti-detachment groove 51. An anti-detachment block 53 is provided at the end of the anti-detachment groove 51 away from the bottom wall of the insertion slot. The anti-detachment block 53 is fixedly connected to the anti-detachment groove 51.

[0041] Reference Figure 4The wind wall forming device 4 also includes a wind wall reinforcing cover 6, which is fixed to the side wall of the wind duct 41. The wind wall reinforcing cover 6 is also provided with an air inlet 61 and an air outlet 62. The air inlet 61 of the wind wall reinforcing cover 6 faces the windward side, and the air outlet 62 of the wind wall reinforcing cover 6 is close to the air outlet 412 of the wind duct 41. The wind wall reinforcing cover 6 is used to guide the flow of wind to form a vertical wind wall, so that the horizontal wind is constrained by the wind wall reinforcing cover 6 to form a vertical wind, thereby disturbing the horizontal wind above the sand barrier wall, thereby increasing the sand barrier height of the sand barrier wall. At the same time, the force of the horizontal wind on the wind wall will not be transmitted to the sand barrier wall, so as not to cause the sand barrier wall to be damaged due to excessive force, thus achieving a "wind-blocking" effect.

[0042] Reference Figure 1 A sliding ring 7 is fitted on the outer side of the column 1, and the sliding ring 7 is fixedly connected to the frame 2; an anti-detachment plate 8 is provided at the top of the column 1, and the anti-detachment plate 8 is fixedly connected to the column 1; an elastic element 9 is provided at the bottom of the anti-detachment plate 8, and the elastic element 9 is fitted on the outer side of the column 1. In this embodiment, the elastic element 9 is made of rubber material, and the elastic element 9 is fixedly connected to the anti-detachment plate 8. The elastic element 9 is used to reduce the impact between the sliding ring 7 and the anti-detachment plate 8.

[0043] By sliding the ring 7 to the column 1, when the frame 2 is subjected to strong wind, some of the force exerted by the wind on the frame 2 can be converted into work done to overcome the weight of the frame 2. This can prevent the connecting rod 43 between the wind shroud 41 and the frame 2 from being subjected to strong wind when the wind shroud 41 and the wind wall reinforcement shroud 6 are subjected to strong wind. At the same time, as the wind speed increases, the wind wall at the top of the frame 2 rises along the column 1, and the overall sand-blocking effect of the sand-blocking wall becomes greater.

[0044] The implementation principle of a fixed irregular-shaped fence sand-retaining wall according to an embodiment of this application is as follows: When the sand-retaining wall is set in an area to block wind and sand, when the wind and sand flow encounters the fence rod 3, the outer surface of the fence rod 3 is a twisted curved surface, which makes the frequency of airflow vortex shedding at different heights different. The wind and sand flow cannot resonate with the fence rod 3, thereby effectively reducing the wind resistance when the wind and sand flow passes through the sand-retaining wall, reducing the shaking and damage caused by the wind and sand flow to the sand-retaining wall, playing the role of vibration isolation and energy dissipation. It can reduce the intensity of the wind and sand flow, protect the sand-retaining wall, reduce the damage of wind and sand to the sand-retaining wall, and extend the service life of the sand-retaining wall.

[0045] Simultaneously, when the sand and dust flow passes through the fence 3, the sand and dust flow generates an upward rotating airflow along the fence 3, thus creating a vortex. The wind in the vortex enters the wind trap 41 from the air inlet 411, and then accelerates out from the air outlet 412 under the constraint of the wind trap 41. Due to the constraint of the wind trap 41, the wind exerts an upward force on the wind trap 41. At the same time, the wind blowing towards the wind wall reinforcement 6 directly enters the air inlet 61, and then accelerates out from the air outlet 62 of the wind wall reinforcement 6 under the constraint of the wind wall reinforcement 6. Similarly, the wind exerts an upward force on the wind wall reinforcement 6. Since the wind wall reinforcement 6 and the wind trap 41 are fixedly connected, the wind drives the frame 2 to have an upward force, causing the frame 2 to drive the sliding ring 7 to slide along the column 1. When the wind force is large, the sliding ring 7 abuts against the elastic element 9. The anti-detachment plate 8 and the elastic element 9 prevent the sliding ring 7 from falling off the column 1.

[0046] During the sliding process of the wind-gathering cover 41, when the wind-gathering cover 41 is subjected to an upward force, the wind-gathering cover 41 drives the first rod 431 to slide in the insertion groove. The first rod 431 drives the slider 52 to slide in the anti-detachment groove 51. The first rod 431 drives the spring 433 to stretch. When the tension of the spring 433 is greater than the weight of the frame 2, the spring 433 drives the frame 2 to slide along the column 1, causing the frame 2 to rise. This prevents the frame 2 from being buried by the sand trapped by the sand retaining wall. The wind power is used to raise the frame 2, thereby avoiding the need for additional kinetic energy to drive the sand retaining wall to rise.

[0047] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A fixed type of irregularly configured fence sand wall, characterized in that: The utility model provides a kind of fence, including stand (1), frame (2) and fence rail (3), stand (1) is arranged in the both sides of frame (2), frame (2) is slidably connected with stand (1), fence rail (3) is provided with several, several fence rail (3) are vertically arranged in frame (2), fence rail (3) is fixedly connected with frame (2); The outer surface of the fence rail (3) is set as a twisted complex curved surface type, as the height of the fence rail (3) rises, the bottom end to the top end of the fence rail (3) is uniformly twisted with consistent twist angle;The fence rail (3) includes a center rod (31) and a twist block (32), the twist block (32) is provided with several, each twist block (32) is sleeved on the center rod (31), and each twist block (32) is fixedly connected with the center rod (31);The top end of the frame (2) is provided with a wind wall forming device (4), the wind wall forming device (4) includes a wind cover (41), a cross beam (42) and a connecting rod (43), the wind cover (41) is set as a streamline type, the wind cover (41) is arranged at the top end of the frame (2), the wind cover (41) is set as a horn shape, the bottom end of the wind cover (41) is an air inlet (411), the top end of the wind cover (41) is an air outlet (412), the cross-sectional area of the air inlet (411) is larger than that of the air outlet (412), the wind cover (41) is used to constrain the flow direction of the airflow guided by the fence rail (3), the cross beam (42) is arranged in the wind cover (41), the two ends of the cross beam (42) are fixedly connected with the two side walls of the wind cover (41), the connecting rod (43) is arranged between the frame (2) and the cross beam (42), and the two ends of the connecting rod (43) are fixedly connected with the frame (2) and the cross beam (42) respectively;The connecting rod (43) includes a first rod (431) and a second rod (432), the first rod (431) is fixedly connected with the frame (2), the second rod (432) is fixedly connected with the cross beam (42), one end of the first rod (431) away from the frame (2) is provided with a plug-in slot, one end of the second rod (432) away from the cross beam (42) is fixedly connected with an insertion rod (434), the insertion rod (434) is plug-in matched with the plug-in slot, a spring (433) is arranged in the plug-in slot, and the two ends of the spring (433) are fixedly connected with the bottom wall of the plug-in slot and the insertion rod (434) respectively;The wind wall forming device (4) further includes a wind wall reinforcing cover (6), the wind wall reinforcing cover (6) is fixed on the side wall of the wind cover (41), the air inlet (61) of the wind wall reinforcing cover (6) faces the windward surface, the air outlet (62) of the wind wall reinforcing cover (6) is close to the air outlet (412) of the wind cover (41), and the wind wall reinforcing cover (6) is used to guide the flow direction of wind to form a vertical wind wall.

2. A fixed shaped construction barrier sand wall as claimed in claim 1 wherein: The twist block (32) is detachably fixedly connected with the center rod (31), a fixed bolt (33) is arranged on the twist block (32), the fixed bolt (33) penetrates the twist block (32) and abuts against the center rod (31), and the fixed bolt (33) is threadedly connected with the twist block (32).

3. A fixed shaped construction barrier sand wall as claimed in claim 1, wherein: The anti-falling assembly (5) is arranged between the insertion rod (434) and the insertion slot, and comprises an anti-falling groove (51), a sliding block (52) and an anti-falling block (53). The anti-falling groove (51) is formed in the side wall of the insertion slot. The sliding block (52) is fixedly connected with the insertion rod (434), and is located in the anti-falling groove (51). The sliding block (52) is in sliding connection with the anti-falling groove (51). The anti-falling block (53) is arranged at the end of the anti-falling groove (51) away from the bottom wall of the insertion slot, and is fixedly connected with the anti-falling groove (51).

4. A fixed shaped construction barrier sand wall as claimed in claim 1, wherein: The outer side of the stand column (1) is sleeved with a sliding ring (7), and the sliding ring (7) is fixedly connected with the frame (2).

5. A fixed, contoured barrier sand wall according to claim 4, wherein: The top end of the stand column (1) is provided with an anti-falling plate (8), and the anti-falling plate (8) is fixedly connected with the stand column (1).

6. A fixed, contoured barrier sand wall according to claim 5, wherein: The bottom end of the anti-falling plate (8) is provided with an elastic member (9), the elastic member (9) is sleeved on the outer side of the stand column (1), the elastic member (9) is fixedly connected with the anti-falling plate (8), and the elastic member (9) is used for reducing the impact between the sliding ring (7) and the anti-falling plate (8).

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