A soil and water conservation wind-preventing and sand-fixing device
By adjusting the inner and outer layers of the netting to prevent wind erosion and sand fixation, the problem of mismatched mesh sizes was solved, achieving soil and water conservation effects under drought and windy weather and reducing soil erosion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING ZHONGDA CONSTRUCTION GROUP CO LTD
- Filing Date
- 2026-04-28
- Publication Date
- 2026-05-26
AI Technical Summary
The existing windbreak and sand-fixing nets cannot be adapted to the size of sand particles, resulting in rapid water evaporation and severe soil erosion during drought and windy weather.
A soil and water conservation windbreak and sand fixation device was designed. By adjusting the inner and outer meshes, the inner mesh covers the gaps in the outer mesh, thereby reducing the mesh cross-section and decreasing water evaporation and sand loss.
In drought and windy weather, adjusting the position of the inner layer netting reduces water evaporation and sand loss, thus improving the adaptability and practicality of windbreak and sand fixation.
Smart Images
Figure CN224281218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of windbreak and sand fixation devices, specifically a windbreak and sand fixation device for soil and water conservation. Background Technology
[0002] Windbreak and sand-fixing nets (also known as windbreak nets or sand-fixing nets) are engineering measures that reduce wind speed, wind erosion, and sand and dust spread through physical barriers. They are widely used in desertification control. Windbreak and sand-fixing nets can retain moisture in the sand, thereby playing a role in sand fixation.
[0003] For example, Chinese Patent Publication No. CN221627043U "discloses a windbreak and sand-fixing device for water conservancy projects, which relates to the technical field of windbreak and sand-fixing devices, including a protective component, a sand-proof plate inside the protective component, a connecting plate at one end of the sand-proof plate, and the connecting plate and the sand-proof plate are not on the same horizontal plane";
[0004] The aforementioned cited document describes multiple protective components interconnected, with sand-proof boards connected to connecting plates. The connecting plates are in contact with the sand, while the sand-proof boards are not in contact with the sand, increasing their stability. Specifically, a sand-proof board is provided, with a connecting plate at one end. The connecting plate and the sand-proof board are not on the same horizontal plane. Thus, when multiple sand-proof boards are connected, the sand-proof boards maintain a certain height above the protected sand under the support of the connecting plates. Furthermore, several sand-proof nets are installed inside the sand-proof boards to prevent sand from splashing. The sand-proof boards enhance the sand-proof effect and prevent tilting or swaying due to external wind forces.
[0005] However, the mesh diameter of the aforementioned windbreak and sand-fixing net cannot be adjusted for adaptability. When installing windbreaks and sand-fixing nets for different sand particle sizes, the mesh size cannot be adjusted accordingly. If the mesh diameter is too large, the sand moisture evaporates quickly during drought and windy weather, leading to severe soil erosion. This makes it impossible to adjust the mesh size of the windbreak and sand-fixing net to be smaller according to the sand particle size, resulting in low practicality. Utility Model Content
[0006] The purpose of this utility model is to provide a soil and water conservation windbreak and sand fixation device that can make the windbreak and sand fixation net adaptable to the weather, thereby reducing the problem of severe water loss during drought and strong winds.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a soil and water conservation windbreak and sand-fixing device, comprising a resilient frame, a first outer mesh, a second outer mesh, and further comprising:
[0008] The inner mesh is slidably installed between the first outer mesh and the second outer mesh;
[0009] An unwinding roller is rotatably mounted inside one side of the resilient frame, and the unwinding roller includes a first winding shaft fixedly mounted on its inner diameter;
[0010] A take-up roller is rotatably mounted inside the resilient frame on the side away from the unwinding roller. The take-up roller includes a second spool fixedly mounted on its inner diameter. A connecting rod is movably connected through the front end of the second spool. A sliding plate is fixedly mounted on the back end of the connecting rod, and an insert rod is fixedly mounted on the front end of the connecting rod.
[0011] Preferably, a tapered grounding plug is fixedly installed at the inner corner of the top of the resilient frame, and mounting grooves are respectively opened on both sides of the inner wall of the resilient frame.
[0012] Preferably, the unwinding roller and the take-up roller are rotatably mounted inside two sets of corresponding mounting slots, one side of the inner layer mesh movably passes through the corresponding mounting slot and wraps around the outside of the unwinding roller, and the other side of the inner layer mesh movably passes through the corresponding mounting slot and wraps around the outside of the take-up roller.
[0013] Preferably, mounting bearings are fixedly installed at both ends of the inner walls of the two sets of mounting grooves, and the ends of the first and second rollers are fixedly installed on the inner diameters of the corresponding two sets of mounting bearings. Torsion springs are fixedly installed between the two ends of the first roller and the two ends of the corresponding inner walls of the mounting grooves.
[0014] Preferably, a blocking block is fixedly installed on the front end of the mounting groove located on one side of the take-up roller. The blocking block has densely spaced insertion holes on its front circumference, and the two ends of the insertion rod are inserted into the corresponding insertion holes.
[0015] Preferably, the take-up roller has a groove near its front end, the slide plate slides inside the groove, and there is a gap fit between the slide plate and the groove. A retaining spring is fixedly installed on the front of the slide plate, and the front end of the retaining spring abuts against the back of the block.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This invention, by rotating the second roller, allows the take-up roller to roll up the inner mesh layer wound on the unwinding roller slightly, causing the inner mesh layer between the first and second outer mesh layers to slide a small gap toward the take-up roller. This creates a certain misalignment between the mesh openings of the inner mesh layer and the upper and lower sets of mesh openings, thus partially blocking the mesh opening gaps on the first outer mesh layer by the mesh openings on the lower inner mesh layer. This reduces the cross-sectional area of the mesh openings, reducing water evaporation and sand and soil scattering during droughts and windy weather.
[0018] This invention allows the U-shaped insert rod to be pulled out, causing the back end of the rod to separate from the corresponding insertion hole. At this time, the slide plate slides from the groove to the front end, forming a pressure against the spring. By rotating the insert rod, the slide plate and the second roll can rotate synchronously, thereby enabling the unwinding roller to overcome the torsion force of the end torsion spring and wind up the inner layer of mesh by the winding roller. After releasing the insert rod, the slide plate can drive the insert rod to reset through the spring, and the insert rod can be reinserted into the corresponding insertion hole. This allows for quick and convenient positioning of the inner layer of mesh that slides and adjusts inside the flexible frame. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the assembly structure of the outer and inner mesh layers in this utility model;
[0021] Figure 3 This is a schematic diagram of the unwinding roller and the winding roller in this utility model;
[0022] Figure 4 for Figure 2 A magnified view of the structure at point A in the middle;
[0023] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.
[0024] In the diagram: 100, resilient frame; 200, first outer mesh; 300, inner mesh; 400, unwinding roller; 500, take-up roller; 11, tapered ground insert; 12, mounting groove; 21, second outer mesh; 41, first reel; 42, mounting bearing; 43, torsion spring; 51, second reel; 52, block; 53, connecting rod; 54, sliding plate; 55, retaining spring; 56, insert rod; 521, insertion hole; 541, chute. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] Please see Figure 1-5 This utility model provides a technical solution: a soil and water conservation windbreak and sand fixation device, including a tough frame 100, a first outer mesh 200, a second outer mesh 21, and further including:
[0027] The inner mesh 300 is slidably installed between the first outer mesh 200 and the second outer mesh 21;
[0028] The unwinding roller 400 is rotatably mounted inside one side of the rigid frame 100. The unwinding roller 400 includes a first reel 41 fixedly mounted on its inner diameter.
[0029] The take-up roller 500 is rotatably mounted inside the flexible frame 100 on the side away from the unwind roller 400. The take-up roller 500 includes a second roller 51 fixedly mounted on its inner diameter. A connecting rod 53 is movably connected through the front end of the second roller 51. A slide plate 54 is fixedly mounted on the back end of the connecting rod 53. An insert rod 56 is fixedly mounted on the front end of the connecting rod 53.
[0030] A tapered ground plug 11 is fixedly installed at the inner corner of the top of the flexible frame 100. Mounting grooves 12 are respectively opened on both sides of the inner wall of the flexible frame 100. The unwinding roller 400 and the take-up roller 500 are respectively rotatably installed in the two sets of corresponding mounting grooves 12. One side of the inner layer mesh 300 moves through the corresponding mounting groove 12 and is wrapped around the outside of the unwinding roller 400. The other side of the inner layer mesh 300 moves through the corresponding mounting groove 12 and is wrapped around the outside of the take-up roller 500. By rotating the second roller 51, the take-up roller 500 can roll up the inner layer mesh 300 wrapped on the unwinding roller 400 by a little.
[0031] In this system, mounting bearings 42 are fixedly installed at both ends of the inner walls of the two sets of mounting grooves 12. The ends of the first reel 41 and the second reel 51 are fixedly installed on the inner diameters of the corresponding two sets of mounting bearings 42. Torsion springs 43 are fixedly installed between the ends of the first reel 41 and the ends of the inner walls of the corresponding mounting grooves 12. A blocking block 52 is fixedly installed on the front end of the mounting groove 12 located on one side of the take-up roller 500. The blocking block 52 has densely spaced insertion holes 521 on its front circumference. The two ends of the insertion rod 56 are inserted into the corresponding insertion holes 521. Inside, by pulling out the end of the U-shaped insert 56, the back end of the insert 56 is separated from the corresponding insertion hole 521. By rotating the insert 56, the slide plate 54 and the second roll 51 are rotated synchronously, so that the unwinding roller 400 can overcome the torque of the end torsion spring 43 and wind up the inner layer mesh 300 by the winding roller 500. After releasing the insert 56, the slide plate 54 can drive the insert 56 to reset through the anti-spring 55. This allows for quick and convenient positioning of the inner layer mesh 300 that is slidably adjusted inside the flexible frame 100.
[0032] The take-up roller 500 has a groove 541 near its front end. The slide plate 54 slides inside the groove 541, and there is a gap fit between the slide plate 54 and the groove 541. A retaining spring 55 is fixedly installed on the front of the slide plate 54. The front end of the retaining spring 55 abuts against the back of the block 52. The mesh holes of the inner mesh 300 are misaligned with the mesh holes of the upper and lower sets of mesh holes, so that the mesh hole gap of the first outer mesh 200 is partially blocked by the mesh holes of the lower inner mesh 300. This reduces the cross-section of the mesh holes and reduces water evaporation and sand scattering during drought and windy weather.
[0033] In this embodiment, by rotating the second roller 51, the take-up roller 500 can roll up the inner mesh 300 wound on the unwind roller 400 slightly, so that the inner mesh 300 between the first outer mesh 200 and the second outer mesh 21 slides a small gap toward the take-up roller 500. This causes a certain misalignment between the mesh holes of the inner mesh 300 and the upper and lower sets of mesh holes, so that the gap between the mesh holes of the first outer mesh 200 is partially blocked by the mesh holes of the lower inner mesh 300. This reduces the cross-sectional area of the mesh holes, which can reduce water evaporation and sand scattering during drought and windy weather.
[0034] In this embodiment, by pulling the end of the U-shaped insert rod 56, the back end of the insert rod 56 is separated from the corresponding insertion hole 521. At this time, the slide plate 54 slides from the slide groove 541 to the front end to press against the abutment spring 55. In this way, by rotating the insert rod 56, the slide plate 54 and the second roll 51 are driven to rotate synchronously, so that the unwinding roller 400 can overcome the torque of the end torsion spring 43 and the winding roller 500 can wind up the inner layer mesh 300. After releasing the insert rod 56, the slide plate 54 can drive the insert rod 56 to reset through the abutment spring 55, and the insert rod 56 is reinserted into the corresponding insertion hole 521. In this way, the inner layer mesh 300 that is slidably adjusted inside the tough frame 100 is quickly and conveniently positioned.
[0035] Working principle: When this soil and water conservation windbreak and sand fixation device is installed and used, the flexible frame 100 can be laid flat at the windbreak and sand fixation position. The flexible frame 100 can be embedded into the ground through four sets of conical ground inserts 11 at the inner corner of the top, so that the mesh of the outer net can block the sand and prevent it from being blown away by the wind.
[0036] When the mesh size is adjusted to be smaller to address the problem of severe soil erosion during drought and windy weather, the U-shaped insert rod 56 is pulled out so that the back end of the insert rod 56 separates from the corresponding insert hole 521. At this time, the slide plate 54 slides from the slide groove 541 to the front end to press against the spring 55. By rotating the insert rod 56, the slide plate 54 and the second roll 51 rotate synchronously, so that the unwinding roller 400 overcomes the torque of the end torsion spring 43 and the winding roller 500 winds up the inner layer mesh 300. This causes the inner layer mesh 300 between the first outer layer mesh 200 and the second outer layer mesh 21 to slide a small gap towards the winding roller 500. This creates a certain misalignment between the mesh holes of the inner layer mesh 300 and the upper and lower sets of mesh holes, so that the gap between the mesh holes of the first outer layer mesh 200 is partially blocked by the mesh holes of the lower inner layer mesh 300. This achieves the reduction of the mesh size by reducing the cross-section, which can reduce water evaporation and sand and soil erosion during drought and windy weather.
[0037] After the insertion rod 56 is released, the slide plate 54 can drive the insertion rod 56 to reset through the anti spring 55, and the insertion rod 56 is re-inserted into the corresponding insertion hole 521, so that the inner mesh 300 that slides and adjusts inside the tough frame 100 can be quickly and conveniently positioned.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A soil and water conservation windbreak and sand fixation device, comprising a flexible frame (100), a first outer layer net (200), a second outer layer net (21), characterized in that, Also includes: The inner mesh (300) is slidably installed between the first outer mesh (200) and the second outer mesh (21); An unwinding roller (400) is rotatably mounted inside one side of the tough frame (100), and the unwinding roller (400) includes a first reel (41) fixedly mounted on its inner diameter; A take-up roller (500) is rotatably mounted inside the resilient frame (100) on the side away from the unwind roller (400). The take-up roller (500) includes a second spool (51) fixedly mounted on its inner diameter. A connecting rod (53) is movably connected through the front end of the second spool (51). A sliding plate (54) is fixedly mounted on the back end of the connecting rod (53). An insert rod (56) is fixedly mounted on the front end of the connecting rod (53).
2. The water and soil conservation windbreak and sand stabilization device according to claim 1, characterized in that: A tapered ground plug (11) is fixedly installed at the inner corner of the top of the resilient frame (100), and mounting grooves (12) are respectively opened on both sides of the inner wall of the resilient frame (100).
3. The water and soil conservation windbreak and sand stabilization device, according to claim 2, characterized in that: The unwinding roller (400) and the winding roller (500) are respectively rotatably installed inside two sets of corresponding mounting grooves (12). One side of the inner mesh (300) moves through the corresponding mounting groove (12) and is wrapped around the outside of the unwinding roller (400). The other side of the inner mesh (300) moves through the corresponding mounting groove (12) and is wrapped around the outside of the winding roller (500).
4. The soil and water conservation windbreak and sand fixation device according to claim 3, characterized in that: Mounting bearings (42) are fixedly installed at both ends of the inner walls of the two sets of mounting grooves (12). The two ends of the first spool (41) and the second spool (51) are fixedly installed on the inner diameter of the corresponding two sets of mounting bearings (42). Torsion springs (43) are fixedly installed between the two ends of the first spool (41) and the two ends of the inner walls of the corresponding mounting grooves (12).
5. A soil and water conservation windbreak and sand-fixing device according to claim 4, characterized in that: A block (52) is fixedly installed on the front end of the mounting groove (12) located on one side of the take-up roller (500). The block (52) has densely spaced insertion holes (521) on the front circumference. The two ends of the insertion rod (56) are inserted into the corresponding insertion holes (521).
6. A soil and water conservation windbreak and sand-fixing device according to claim 5, characterized in that: The take-up roller (500) has a groove (541) near its front end. The slide plate (54) slides inside the groove (541) and there is a gap fit between the slide plate (54) and the groove (541). A retaining spring (55) is fixedly installed on the front of the slide plate (54), and the front end of the retaining spring (55) abuts against the back of the block (52).