Land leveling device for hilly land development

Abstract

The utility model relates to the technical field of land leveling for hilly land development, disclose a kind of land leveling device for hilly land development, including protective cover, the bottom of the protective cover is fixedly connected with lifting mechanism, the top of the protective cover is fixedly connected with extension mechanism, the rear side of the protective cover is fixedly connected with two extension rods, two the outside of extension rod is equipped with two movable blocks, two the inboard of movable block is fixedly connected with scraper, the bottom of the protective cover is rotatably connected with soil breaking rod;The lifting mechanism includes two hydraulic pipes, two the outside of hydraulic pipe is fixedly connected with protective cover, the rear side of two hydraulic pipe is fixedly connected with hydraulic cylinder.In the utility model, by the stability of guiding and limiting structure, can reduce the deviation or shaking in operation process, ensure the consistency of breaking depth and range, reduce the probability of repetitive operation, improve the overall precision of land leveling.

Description

Technical Field

[0001] This utility model relates to the field of land leveling technology for hilly land development, and in particular to a land leveling device for hilly land development. Background Technology

[0002] In hilly areas, scenarios such as rural road expansion, small-scale water conservancy facility construction, and land reclamation after mine restoration require leveling irregular slopes. Traditional equipment struggles to accurately control the elevation and slope after leveling. Hilly areas are mostly mountainous and have inconvenient transportation, resulting in high transportation costs for large equipment. Furthermore, repeated manual adjustments are required after operation, leading to a double burden of equipment investment and labor costs, resulting in low development efficiency. General-purpose equipment lacks adjustable operating range mechanisms, requiring frequent equipment movement when dealing with plots of varying widths. Moreover, elevation adjustments are mostly made by raising and lowering the entire structure, making it impossible to adjust individual protrusions or depressions, resulting in poor leveling accuracy.

[0003] The main components of the land leveling device for hilly land development include the power system, working mechanism, and transmission system. Through the lifting system, it is adapted to the complex conditions of hilly terrain, which not only ensures the quality of land leveling but also improves work efficiency and reduces the cost of use and maintenance. It has strong practical application value. For operators in hilly areas with varying skill levels, it can reduce the difficulty of use and reduce work errors caused by improper operation, making the equipment easier to popularize and apply.

[0004] In existing technologies, land leveling devices for hilly land development have many problems. For hills with large slope changes, the automatic leveling ability of the equipment is insufficient, which can easily lead to problems such as missed breaking of high places and over-excavation of low places. Some devices even rely on manual adjustment, which seriously affects the leveling accuracy. Some devices can only complete the single function of breaking or crushing soil. After the subsoiler completes the subsoiling, a large number of hard soil clods and crop stubble remain on the surface, which requires the additional use of a rotary tiller for secondary processing. This segmented operation leads to frequent equipment scheduling and extended operation cycle. Especially in hilly areas where transportation is inconvenient, it indirectly increases costs. Therefore, a land leveling device for hilly land development is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a land leveling device for hilly land development, which aims to improve the problem of hill slope adaptability in the existing technology.

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

[0007] A land leveling device for hilly land development includes a protective cover, a lifting mechanism fixedly connected to the bottom of the protective cover, an extension mechanism fixedly connected to the top of the protective cover, two extension rods fixedly connected to the rear side of the protective cover, two movable blocks installed on the outside of the two extension rods, scrapers fixedly connected to the inside of the two movable blocks, and a soil-breaking rod rotatably connected to the bottom of the protective cover.

[0008] The lifting mechanism includes two hydraulic pipes, with a protective cover fixedly connected to the outside of the two hydraulic pipes. A hydraulic cylinder is fixedly connected to the rear side of each of the two hydraulic pipes. A fixing block is fixedly connected to the drive end of each hydraulic cylinder. Multiple limiting plates are fixedly connected to the bottom of the protective cover. Limiting blocks are slidably connected inside the multiple limiting plates. A sliding component is fixedly connected to the bottom of each of the two fixing blocks.

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

[0010] The sliding assembly includes two slide rails, each with a fixed block connected to its top. Multiple sliders are slidably connected inside the slide rails, each slider has a long rod fixedly connected to its bottom, and each long rod has a soil-breaking blade fixedly connected to its front side.

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

[0012] The expansion mechanism includes two connecting rods, with a fixed rod fixedly connected to the top of each connecting rod. Two fixed blocks are fixedly connected to the sides of each fixed rod. Two more fixed blocks are fixedly connected to the front of the protective cover. Rotating shafts are rotatably connected inside each of the fixed blocks. Telescopic rods are rotatably connected to the outside of each of the rotating shafts. Spring washers are fixedly connected to the top of each of the telescopic rods. Two screws are threaded into the inside of each of the telescopic rods. A bidirectional telescopic rod is rotatably connected to the bottom of each telescopic rod.

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

[0014] The bidirectional telescopic rod includes a second telescopic rod, a third fixing block is fixedly connected to the front side of the second telescopic rod, and two other screws are threadedly connected to the internal threads of the bidirectional telescopic rod.

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

[0016] The top of the second telescopic rod is rotatably connected to the bottom of the first telescopic rod, and the bottoms of the plurality of screws are fixedly connected to the top of the spring washer;

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

[0018] The two telescopic rods in the middle are rotatably connected to the opposite side of the fixed block, and the bottom of the two connecting rods is fixedly connected to the top of the protective cover.

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

[0020] The top of the hydraulic cylinder is fixedly connected to the inside of the protective cover, and the front side of the slide rail is slidably connected to the rear side of the limiting plate.

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

[0022] The interior of each of the limiting plates is provided with a groove, and the hydraulic pipe is externally fixedly connected to the interior of the protective cover.

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

[0024] 1. In this utility model, the lifting mechanism includes a hydraulic pipe, a plurality of hydraulic cylinders are fixedly connected to the rear side of the hydraulic pipe, a fixing block is fixedly connected to the bottom of the plurality of hydraulic cylinders, a limit plate is fixedly connected to the bottom of the protective cover, a limit block is slidably connected inside the limit plate, and a sliding component is fixedly connected to the bottom of the plurality of fixing blocks. Through the stable guiding and limiting structure, the deviation or shaking during the operation can be reduced, the consistency of the soil breaking depth and range can be ensured, the probability of repeated operation can be reduced, and the overall accuracy of land leveling can be improved.

[0025] 2. In this utility model, the screw and spring washer work together to effectively lock the telescopic length and buffer operational vibrations, preventing parts from loosening. The stable connection between the connecting rod and the fixed rod enhances the overall structural rigidity, reduces shaking caused by terrain bumps, ensures long-term operational stability and component lifespan, and allows for range and angle adjustments without complicated operations, reducing the skill requirements for operators. At the same time, the integrated expansion design reduces the investment in additional equipment, balancing operational efficiency and operating costs, making it particularly suitable for diverse land development scenarios in hilly areas. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the front side of a land leveling device for hilly land development proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a hydraulic cylinder for a land leveling device for hilly land development proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of a telescopic rod of a land leveling device for hilly land development proposed in this utility model;

[0029] Figure 4This is a schematic diagram of the soil-breaking rod of a land leveling device for hilly land development proposed in this utility model.

[0030] Legend:

[0031] 1. Protective cover; 2. Lifting mechanism; 21. Hydraulic pipe; 22. Hydraulic cylinder; 23. Fixed block one; 24. Limiting block; 25. Limiting plate; 26. Sliding assembly; 261. Slide rail; 262. Slider; 263. Long rod; 264. Soil-breaking blade; 3. Extension mechanism; 31. Fixed rod; 32. Fixed block two; 33. Rotating shaft; 34. Telescopic rod one; 35. Spring washer; 36. Screw; 37. Connecting rod; 38. Two-way telescopic rod; 381. Telescopic rod two; 382. Fixed block three; 4. Scraper; 5. Soil-breaking stick; 6. Movable block; 7. Extension rod. 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 land leveling device for hilly land development, including a protective cover 1. The protective cover 1 provides physical protection for the core components inside the device, preventing direct impact from gravel and soil during hilly operations that could cause wear or deformation. A lifting mechanism 2 is fixedly connected to the bottom of the protective cover 1, providing a rigid mounting base for the lifting mechanism 2 and ensuring that the lifting mechanism 2 moves synchronously with the protective cover 1 during operation, preventing relative displacement due to the bumpy hilly terrain. An extension mechanism 3 is fixedly connected to the top of the protective cover 1, using the top bearing surface of the protective cover 1 to fix the extension mechanism 3, allowing the extension mechanism 3 to adjust the working width around the protective cover 1 to adapt to the alternating widths of hilly plots. Two extension rods 7 are fixedly connected to the rear side of the protective cover 1. The side support extension rods 7 extend the working radius of the scraper 4, enabling it to cover areas such as the edges of hilly plots and field ridges that are difficult for traditional equipment to reach. Two movable blocks 6 are installed on the outside of the two extension rods 7. The movable blocks 6 can slide and rotate laterally along the extension rods 7, allowing the scraper 4 to flexibly adjust its angle according to the slope of the hilly surface, ensuring that the scraper 4 always keeps in contact with the ground surface. The scraper 4 is fixedly connected to the inner side of the two movable blocks 6. The movable blocks 6 drive the scraper 4 to move synchronously. The scraper 4 can push the broken soil laterally to level it, eliminating local height differences in the hilly plots. The bottom of the protective cover 1 is rotatably connected to the soil crushing rod 5. The protective cover 1 provides rotational support for the soil crushing rod 5. The soil crushing rod 5 rotates at high speed when the device moves, impacting the large clumps of soil remaining after breaking the soil and breaking them into small particles, laying the foundation for subsequent leveling operations.

[0034] The lifting mechanism 2 includes two hydraulic pipes 21, which transport hydraulic medium to provide power for the extension and retraction of the hydraulic cylinders 22. Protective covers 1 are fixedly connected to the outside of the two hydraulic pipes 21 to fix their direction and position, preventing bending or detachment due to vibrations during hilly operations and ensuring stable hydraulic medium delivery. Hydraulic cylinders 22 are fixedly connected to the rear of each hydraulic pipe 21. The hydraulic pipes 21 deliver high-pressure hydraulic medium to the hydraulic cylinders 22, driving the drive end of the hydraulic cylinders 22 to extend and retract, achieving dynamic adjustment of the working height. Fixed blocks 23 are fixedly connected to the drive end of each hydraulic cylinder 22. The hydraulic cylinders 22 drive the fixed blocks 23 to move up and down synchronously, stabilizing the hydraulic power. The power is transferred to the sliding component 26 to avoid power loss. Multiple limiting plates 25 are fixedly connected to the bottom of the protective cover 1. The protective cover 1 fixes the limiting plates 25 to form a guide rail, which limits the sliding direction of the limiting block 24 and prevents the sliding component 26 from shifting laterally when it is raised and lowered. The limiting blocks 24 are slidably connected inside the multiple limiting plates 25. The limiting blocks 24 slide synchronously along the limiting plates 25 with the fixed block 23, further constraining the movement trajectory of the sliding component 26 and enhancing the stability of the raising and lowering process. Even when working on steep slopes, the structure can remain stable. The sliding component 26 is fixedly connected to the bottom of the two fixed blocks 23. The fixed blocks 23 drive the sliding component 26 to rise and fall synchronously, realizing precise control of the soil breaking depth and adapting to the operation requirements of different soil hardness in hilly areas.

[0035] The sliding assembly 26 includes two slide rails 261, which provide lateral sliding tracks for the slider 262, ensuring a stable movement path for the slider 262 and preventing it from shifting due to the bumps in the hilly terrain. A fixing block 23 is fixedly connected to the top of each slide rail 261, rigidly connecting the slide rail 261 to the lifting mechanism 2, allowing the slide rail 261 to rise and fall synchronously with the fixing block 23. Multiple sliders 262 are slidably connected inside the slide rail 261, allowing them to slide freely along the slide rail 261 and adjust according to the width of the hilly terrain. In a horizontal position, the soil-breaking component covers the target work area. The bottom of multiple sliders 262 is fixedly connected to long rods 263. The sliders 262 drive the long rods 263 to move synchronously. The long rods 263 can extend the working depth of the soil-breaking blades 264, ensuring that the soil-breaking blades 264 can cut into the hard soil layers or shallow gravel common in hilly areas. The front of multiple long rods 263 is fixedly connected to the soil-breaking blades 264. The long rods 263 provide support for the soil-breaking blades 264. When the device moves, the soil-breaking blades 264 cut into the soil, breaking up hard soil layers and rocks, clearing obstacles for subsequent soil breaking and leveling operations.

[0036] Reference Figures 1 to 3The extension mechanism 3 includes two connecting rods 37, which rigidly connect the fixed rod 31 to the protective cover 1, ensuring the overall stability of the extension mechanism 3 and preventing loosening due to vibrations during hilly operations. The top of the two connecting rods 37 is fixedly connected to the fixed rod 31, providing support for it. The fixed rod 31, as the core load-bearing component of the extension mechanism 3, provides the mounting base for the components on both sides. Two fixing blocks 32 are fixedly connected to both sides of the fixed rod 31, and two more fixing blocks 32 are fixedly connected to the front of the protective cover 1. The fixing blocks 32 are rotatable. Shaft 33 provides rotational support, ensuring stable rotation of the rotating shaft 33. The rotating shaft 33 is rotatably connected internally to multiple fixed blocks 32. The rotating shaft 33 drives the telescopic rod 34 to rotate around the fixed blocks 32, allowing the telescopic rod 34 to adjust its angle according to the slope of the hilly terrain, ensuring the working components fit the boundary. The telescopic rod 34 is rotatably connected externally to multiple rotating shafts 33, causing the telescopic rod 34 to rotate synchronously. The telescopic rod 34 can adjust the width of the foundation work by telescoping, adapting to medium-width hilly terrain. The tops of multiple telescopic rods 34 are fixedly connected... A spring washer 35 is provided, which can buffer operational vibrations through elastic deformation, preventing the screw 36 from loosening due to vibration and ensuring the stable locking of the telescopic rod 34's extension length. Two screws 36 are threaded into the interior of each of the multiple telescopic rods 34, passing through the threaded holes of the telescopic rod 34 to lock its extension length and prevent it from extending or retracting on its own during operation. A bidirectional telescopic rod 38 is rotatably connected to the bottom of the telescopic rod 34, providing support for it. The bidirectional telescopic rod 38 can extend and retract in both directions horizontally, achieving the desired working width. The bidirectional telescopic pole 38 is designed for secondary expansion to accommodate wider hilly terrain. It includes a second telescopic pole 381, which is the core telescopic component of the bidirectional telescopic pole 38. The total length of the bidirectional telescopic pole 38 can be changed by telescopic extension. A fixing block 382 is fixedly connected to the front of the second telescopic pole 381. The fixing block 382 can enhance the structural strength of the end of the second telescopic pole 381 and is also used to connect auxiliary leveling components. Two other screws 36 are threaded inside the bidirectional telescopic pole 38. The screws 36 can lock the telescopic length of the second telescopic pole 381 to ensure the stability of the width after secondary expansion.

[0037] Reference Figures 2 to 4The top of telescopic rod 381 is rotatably connected to the bottom of telescopic rod 34, allowing telescopic rod 381 to rotate synchronously with the angle adjustment of telescopic rod 34, ensuring that the bidirectional telescopic rod 38 always maintains an appropriate angle with the working surface. The bottom of multiple screws 36 is fixedly connected to the top of spring washers 35. The elastic pressure of the spring washers 35 enhances the locking effect of the screws 36, preventing the screws 36 from loosening due to vibration. The adjacent sides of the two middle telescopic rods 34 are rotatably connected to the opposite sides of the fixing block 32, allowing the middle telescopic rods 34 to rotate inward to adapt to narrower plot spaces. The bottom of the two connecting rods 37 is fixedly connected to the top of the protective cover 1, providing stable support for the connecting rods 37 through the protective cover 1. To ensure that the extension mechanism 3 and the main body of the device work together, the top of the hydraulic cylinder 22 is fixedly connected to the inside of the protective cover 1. The protective cover 1 provides a mounting point for the hydraulic cylinder 22, enhancing the stability of the hydraulic cylinder 22 during operation. The front side of the slide rail 261 is slidably connected to the rear side of the limiting plate 25, so that the slide rail 261 can slide along the limiting plate 25 when lifting and lowering, further enhancing the guiding stability of the sliding component 26. The interior of multiple limiting plates 25 is provided with grooves, which provide sliding space for the limiting block 24, ensuring that the limiting block 24 slides smoothly without jamming. The exterior of the hydraulic pipe 21 is fixedly connected to the inside of the protective cover 1. The hydraulic pipe 21 is fixed through the internal space of the protective cover 1 to prevent the hydraulic pipe 21 from being exposed to the outside and damaged by impact.

[0038] Working principle: The lifting mechanism 2 serves as the main power transmission. Hydraulic pipe 21 supplies hydraulic medium to multiple hydraulic cylinders 22 fixed at its rear. By controlling the flow rate of the hydraulic medium, the hydraulic cylinders 22 are driven to lift and lower. The hydraulic cylinders 22 extend and push the fixed block 23 at the bottom downwards, and retract and pull the fixed block 23 upwards, thereby synchronously lifting and lowering the sliding assembly 26 connected to the fixed block 23. This ensures that the breaking height of the sliding assembly 26 adapts to the current terrain. During this lifting and lowering process, the limiting plate 25 fixed at the bottom of the protective cover 1 and the limiting plate 25... The limiting block 24, which is connected by an internal sliding connection, plays a key stabilizing role. The limiting block 24 moves synchronously with the fixed block 23 and always slides along the preset track of the limiting plate 25. This limits the lateral displacement of the fixed block 23 and the sliding component 26, preventing the sliding component 26 from deviating from the target working area due to mechanical vibration and uneven ground during hilly terrain operations. This ensures the accuracy of height adjustment. The mechanism can flexibly adapt to the undulating slope and irregular shape of hilly terrain, realize the control of the breaking depth and range, and provide efficient and stable early breaking support for hilly land leveling operations.

[0039] As the core component bearing the load, the extension mechanism 3 uses connecting rod 37 to support fixed rod 31. Fixed rod 31 provides a mounting base for rotating shaft 33 via fixing blocks 32 on both sides and the front of protective cover 1. Rotating shaft 33 can drive telescopic rod 34 to rotate around fixing blocks 32, thus adjusting the angle of telescopic rod 34. Spring washer 35 fits against the top of telescopic rod 34, and screw 36 is inserted into telescopic rod 34, locking the telescopic length of telescopic rod 34 with spring washer 35 to prevent loosening. Telescopic rod 34 provides rotational support for bidirectional telescopic rod 38. Telescopic rod 381 can extend and retract horizontally, allowing for changes in the bidirectional telescopic rod 38. The overall length is controlled by screw 36, which inserts into the bidirectional telescopic rod 38 to lock the telescopic position of the second telescopic rod 381. Fixing block 382 is fixed to the front of the second telescopic rod 381 and can move with it, adapting to different trailer structures. Through a modular connection design, it forms multi-point interfaces, compatible with front, side, and rear mounting on various trailers, avoiding connection problems. It can match many common trailers, and its multi-level width adjustment meets the needs of different trailer operating ranges. Switching is possible without replacing parts, reducing costs. Flexible angle adjustment corrects mounting deviations, ensuring adaptability to the working surface. Vibration buffering and stabilization design adapts to different vibration environments, ensuring parameter stability. It is compatible with trailer auxiliary components, enabling collaborative operation and improving efficiency.

[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 land leveling device for hilly land development, comprising a protective cover (1), characterized in that: The bottom of the protective cover (1) is fixedly connected to a lifting mechanism (2), the top of the protective cover (1) is fixedly connected to an expansion mechanism (3), the rear side of the protective cover (1) is fixedly connected to two extension rods (7), two movable blocks (6) are installed on the outside of the two extension rods (7), a scraper (4) is fixedly connected to the inside of the two movable blocks (6), and a soil crushing rod (5) is rotatably connected to the bottom of the protective cover (1). The lifting mechanism (2) includes two hydraulic pipes (21), and a protective cover (1) is fixedly connected to the outside of the two hydraulic pipes (21). A hydraulic cylinder (22) is fixedly connected to the rear side of each of the two hydraulic pipes (21). A fixing block (23) is fixedly connected to the driving end of each hydraulic cylinder (22). Multiple limiting plates (25) are fixedly connected to the bottom of the protective cover (1). A limiting block (24) is slidably connected inside each of the multiple limiting plates (25). A sliding component (26) is fixedly connected to the bottom of each of the two fixing blocks (23).

2. The land leveling device for hilly land development according to claim 1, characterized in that: The sliding assembly (26) includes two slide rails (261), and a fixing block (23) is fixedly connected to the top of each of the two slide rails (261). Multiple sliders (262) are slidably connected inside the slide rails (261). Long rods (263) are fixedly connected to the bottom of each of the multiple sliders (262). A soil-breaking blade (264) is fixedly connected to the front side of each of the multiple long rods (263).

3. The land leveling device for hilly land development according to claim 1, characterized in that: The extension mechanism (3) includes two connecting rods (37), with a fixed rod (31) fixedly connected to the top of the two connecting rods (37). Two fixed blocks (32) are fixedly connected to both sides of the fixed rod (31). Two other fixed blocks (32) are fixedly connected to the front side of the protective cover (1). Rotating shafts (33) are rotatably connected inside each of the multiple fixed blocks (32). Telescopic rods (34) are rotatably connected to the outside of each of the multiple rotating shafts (33). Spring washers (35) are fixedly connected to the top of each of the multiple telescopic rods (34). Two screws (36) are threadedly connected to the inside of each of the multiple telescopic rods (34). A bidirectional telescopic rod (38) is rotatably connected to the bottom of the telescopic rod (34).

4. A land leveling device for hilly land development according to claim 3, characterized in that: The bidirectional telescopic rod (38) includes a second telescopic rod (381), and a third fixing block (382) is fixedly connected to the front side of the second telescopic rod (381). The internal threads of the bidirectional telescopic rod (38) are connected to two other screws (36).

5. A land leveling device for hilly land development according to claim 4, characterized in that: The top of the second telescopic rod (381) is rotatably connected to the bottom of the first telescopic rod (34), and the bottoms of the plurality of screws (36) are fixedly connected to the top of the spring washer (35).

6. A land leveling device for hilly land development according to claim 3, characterized in that: The two telescopic rods (34) in the middle are rotatably connected on the opposite side of the fixed block (32), and the bottom of the two connecting rods (37) are fixedly connected to the top of the protective cover (1).

7. A land leveling device for hilly land development according to claim 2, characterized in that: The top of the hydraulic cylinder (22) is fixedly connected to the inner side of the protective cover (1), and the front side of the slide rail (261) is slidably connected to the rear side of the limiting plate (25).

8. A land leveling device for hilly land development according to claim 2, characterized in that: The interior of each of the limiting plates (25) is provided with a groove, and the hydraulic pipe (21) is externally fixedly connected to the interior of the protective cover (1).

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