Ploughing boundary adjusting device
Through innovative design of the lifting mechanism and the digging mechanism, the problems of insufficient height adjustment and digging mechanism flexibility of existing devices have been solved, realizing the flexibility of height adjustment and the adjustability of the digging mechanism, improving operation efficiency and accuracy, and adapting to the needs of different terrains and boundary marker sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA YUNTU SURVEY & PLANNING CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-08
AI Technical Summary
Existing land planning and design boundary marker positioning devices have limitations in terms of height adjustment and the flexibility of excavation mechanisms, making it difficult to adapt to different terrains and working depths. They are also cumbersome to operate and inefficient.
The design incorporates a lifting mechanism and an excavating mechanism, including components such as a lifting column, drive box, rotating shaft, linkage gear, adjustment box, two-way lead screw, and electric drill. Through the cooperation of the drive motor and worm gear, the height and width can be flexibly adjusted, improving work efficiency and accuracy.
It achieves high flexibility and stability, improves the adjustability and operating efficiency of the excavation mechanism, adapts to different terrains and boundary marker size requirements, simplifies the operation process, and improves operating efficiency and accuracy.
Smart Images

Figure CN224214130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of farmland demarcation technology, and in particular to a farmland demarcation adjustment device. Background Technology
[0002] In agricultural production, farmland demarcation is a crucial step in ensuring the rational planning and effective use of land. Traditional farmland demarcation often relies on manual measurement and marking, which is not only time-consuming and labor-intensive but also difficult to guarantee accuracy, especially in complex terrain and large-scale farmland, making it inefficient and prone to errors.
[0003] With the development of agricultural mechanization, some land planning and design boundary marker positioning devices have gradually appeared on the market. For example, a land planning and design boundary marker positioning device with patent publication number CN222894017U achieves automatic positioning and fixing of boundary markers through a mechanical structure, which is an improvement over the traditional manual method. However, this device still has some shortcomings:
[0004] 1. Inconvenient height adjustment: The device for comparing documents has certain limitations in height adjustment. It can usually only adapt to the operating requirements of a specific height and is difficult to adjust flexibly under different terrains and operating depths.
[0005] 2. Poor flexibility of the digging mechanism: During the digging process, the width and depth of the digging mechanism are usually fixed, making it difficult to adapt to the installation requirements of boundary markers of different sizes, which limits its application in diverse farmland demarcation operations.
[0006] To address the aforementioned problems, this utility model proposes a new farmland boundary adjustment device, which solves the problems of existing land planning and design boundary marker positioning devices in terms of height adjustment, excavation mechanism flexibility, operation efficiency, and structural complexity. Utility Model Content
[0007] This utility model discloses a farmland demarcation adjustment device that achieves high flexibility and stability through reasonable design and innovative technical means, as well as improved adjustability of the digging mechanism and operational efficiency. The device is compact in structure, easy to operate, and widely applicable, exhibiting significant technical effects and application advantages. In future farmland demarcation operations, this device will play a crucial role and provide strong support for agricultural production.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A farmland boundary adjustment device includes a base, a fixed support frame is fixedly installed on the upper surface of the base, a lifting mechanism is installed on the surface of the fixed support frame, and a digging mechanism is fixed at the bottom end of the lifting mechanism.
[0010] The lifting mechanism includes a lifting column and a drive box. The upper surface of the fixed support frame is provided with a rectangular limiting hole that matches the lifting column. The lifting column is slidably connected to the inner wall of the rectangular limiting hole. Both sides of the lifting column are provided with strip-shaped grooves. The inner wall of the strip-shaped grooves is fixedly provided with positioning racks. The inner wall of the drive box is rotatably connected with two rotating shafts. The surface of the rotating shafts is fixedly connected with linkage gears. The two linkage gears are symmetrically distributed on both sides of the lifting column, and the two linkage gears mesh with the two positioning racks respectively.
[0011] The excavation mechanism includes an adjustment box fixedly installed at the bottom of the lifting column. A two-way lead screw is rotatably connected to the inner wall of the adjustment box. Two adjustment mounting seats are threadedly connected to the surface of the two-way lead screw. One end of the adjustment mounting seat extends to the outside of the adjustment box, and an electric drill is fixedly installed on the surface of the adjustment mounting seat.
[0012] In a preferred embodiment, an adjustment motor is fixedly installed at the end of the adjustment box, the rotation shaft of the adjustment motor extends into the interior of the adjustment box and is fixedly connected to one end of a bidirectional lead screw, and a spiral drill bit is fixedly installed at the output end of the electric drill.
[0013] In a preferred embodiment, a drive motor is fixedly mounted on the outer surface of the drive box, the rotating shaft of the drive motor extends into the interior of the drive box and is fixedly connected to a drive rod, and two worm gears are fixedly mounted on the surface of the drive rod, with a worm wheel fixedly connected to one end of each of the two rotating shafts.
[0014] In a preferred embodiment, the worm is positioned opposite to the worm wheel, the worm meshes with the worm wheel, the threads of the two worms are in opposite directions, and the drive motor drives the two rotating shafts to rotate in opposite directions through the worm and the worm wheel.
[0015] In a preferred embodiment, the surface of the adjustment box is provided with scale lines, the positions of which correspond to the adjustment mounting base.
[0016] In a preferred embodiment, the fixed support frame consists of two triangular brackets and a top plate, with the top plate fixedly mounted on top of the two triangular brackets and the drive box fixedly mounted on the upper surface of the top plate.
[0017] In a preferred embodiment, the base has a U-shaped structure, and four casters are installed at the bottom of the base. The casters are universal casters with brakes.
[0018] As can be seen from the above, the farmland boundary adjustment device provided by this utility model has the following technical effects.
[0019] Firstly, the height adjustment flexibility and stability are enhanced. This device achieves flexible height adjustment of the excavating mechanism through a lifting mechanism. The drive motor drives the worm gear and worm wheel to mesh, which in turn moves the linkage gear along the positioning rack, thus smoothly raising and lowering the lifting column. Compared with the boundary marker positioning device mentioned in the background technology, this device is more precise and stable in height adjustment, and can adapt to different terrains and operational needs.
[0020] Secondly, the adjustability and operational efficiency of the excavation mechanism are improved. The excavation mechanism can adjust the rotation of the bidirectional lead screw driven by the motor, so that the two adjustable mounting seats and the electric drill fixed on them can move in opposite or the same direction to adjust the excavation width. This is suitable for installing boundary markers of different widths and improves operational flexibility. In contrast, the positioning device in the background technology usually requires additional tools to excavate the land after the boundary marker is positioned, which is relatively cumbersome. Attached Figure Description
[0021] Figure 1 This is a front view structural diagram of a farmland boundary adjustment device proposed in this utility model.
[0022] Figure 2 This is a rear-view first-angle structural diagram of a farmland boundary adjustment device proposed in this utility model.
[0023] Figure 3 This is a rear-view second perspective structural diagram of a farmland boundary adjustment device proposed in this utility model.
[0024] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.
[0025] In the attached diagram: 1. Base; 2. Fixed support frame; 3. Lifting mechanism; 4. Excavating mechanism; 5. Casters;
[0026] 301. Lifting column; 302. Drive box; 304. Strip groove; 305. Positioning rack; 306. Rotating shaft; 307. Linkage gear; 308. Drive motor; 309. Drive rod; 310. Worm gear; 311. Worm wheel
[0027] 401. Adjustment box; 402. Two-way lead screw; 403. Adjustment mounting base; 404. Electric drill; 405. Adjustment motor; 406. Spiral drill bit. Detailed Implementation
[0028] 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0029] Reference Figures 1 to 4A farmland boundary adjustment device includes a base 1, which has a U-shaped structure and is designed to be stable to support the entire device.
[0030] Features: The base 1 is equipped with four casters 5, each with a brake, facilitating the movement and positioning of the device across different farmlands. The braking function ensures the device remains stable during operation and prevents slippage.
[0031] The fixed support frame 2 consists of two triangular brackets and a top plate. The triangular brackets are structurally stable, and the top plate is fixedly mounted on top of the two triangular brackets.
[0032] Features: The top plate provides a support platform for the lifting mechanism 3, ensuring the smoothness and reliability of the lifting process.
[0033] It is worth noting that the lifting mechanism 3 includes a lifting column 301, a drive box 302, a strip groove 304, a positioning rack 305, a rotating shaft 306, a linkage gear 307, a drive motor 308, a drive rod 309, a worm gear 310, and a worm wheel 311.
[0034] Structural description: The lifting column 301 is slidably connected to the rectangular limiting hole on the fixed support frame 2 to achieve vertical lifting.
[0035] The drive box 302 houses the transmission components, which are fixedly mounted on the upper surface of the top plate. Strip-shaped grooves 304 and positioning racks 305 are formed on both sides of the lifting column 301, for meshing with the linkage gear 307. A rotating shaft 306 is rotatably connected within the drive box 302, while the linkage gear 307 is fixedly connected to the surface of the rotating shaft 306 and meshes with the positioning rack 305.
[0036] The drive motor 308, drive rod 309, worm gear 310, and worm wheel 311 are included. The rotating shaft of the drive motor 308 extends into the drive box 302 and is connected to the two worm gears 310 via the drive rod 309. One end of the rotating shaft 306 is fixedly connected to the worm wheel 311. The worm gears 310 mesh with the worm wheel 311, causing the rotating shaft 306 to rotate in the opposite direction.
[0037] It is worth noting that the excavation mechanism 4 includes an adjustment box 401, a two-way lead screw 402, an adjustment mounting base 403, an electric drill 404, an adjustment motor 405, and a spiral drill bit 406.
[0038] Structural Description: The adjusting box 401 is fixedly installed at the bottom end of the lifting column 301, and a transmission assembly is installed inside. The bidirectional lead screw 402 is rotatably connected inside the adjusting box 401 and is used to drive the movement of the adjusting mounting base 403.
[0039] The adjusting mounting base 403 is threaded onto the surface of the double-acting lead screw 402, with one end extending to the outside of the adjusting box 401 for mounting the electric drill 404. The electric drill 404 is fixedly mounted on the surface of the adjusting mounting base 403, and its output end is connected to the auger bit 406.
[0040] It should be further explained that the regulating motor 405 is fixedly installed at the end of the regulating box 401, and the rotating shaft extends into the interior of the regulating box 401 and is fixedly connected to one end of the bidirectional lead screw 402.
[0041] It is worth noting that this device has a compact structure, with tightly connected and rationally arranged components, making the entire device small in size and lightweight, easy to carry and move. At the same time, the device is simple and easy to operate; operators can perform operations such as height adjustment, width adjustment, and digging operations simply by using buttons or switches, reducing operational difficulty and labor intensity.
[0042] Working principle: During use, the operator pushes the device and uses the casters 5 to move it to the designated working position. Applying the brakes ensures the device remains stable during operation and prevents slippage.
[0043] Height adjustment operation steps: Start the drive motor 308. The rotating shaft of the drive motor 308 drives the drive rod 309 to rotate. The two worm gears 310 on the surface of the drive rod 309 mesh with the worm wheel 311 at one end of the rotating shaft 306, causing the rotating shaft 306 to rotate in the opposite direction. The linkage gear 307 on the surface of the rotating shaft 306 meshes with the positioning racks 305 on both sides of the lifting column 301, driving the lifting column 301 to rise and fall smoothly within the rectangular limit hole. Adjust the lifting column 301 to a suitable height according to the operation requirements to ensure that the excavating mechanism 4 can accurately excavate to the specified depth.
[0044] Excavation Mechanism 4 Width Adjustment and Excavation Operation Steps: Start the adjustment motor 405. The rotating shaft of the adjustment motor 405 drives the double-acting lead screw 402 to rotate. The two adjustment mounting seats 403 on the surface of the double-acting lead screw 402 move in opposite or the same direction under the action of the lead screw, thereby adjusting the excavation width of the excavation mechanism 4. Observe the scale lines on the surface of the adjustment box 401 to ensure that the adjustment mounting seats 403 have moved to the designated positions to meet the installation requirements of boundary markers of different widths. Start the electric drill 404; the auger drill bit 406 begins to rotate and excavate the land, completing the excavation operation for farmland demarcation.
[0045] After the operation is completed, the device reset procedure is as follows: Turn off the electric drill 404 and the regulating motor 405 to stop the digging operation. Start the drive motor 308 and rotate the drive rod 309 in the reverse direction. Through the meshing of the worm gear 310 and worm wheel 311, the lifting column 301 is driven to the lowest position. Depress the brake to ensure that the device remains stable during the reset process. The operator pushes the device to the next working position or storage location to prepare for the next operation.
[0046] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. A farmland boundary adjustment device, comprising a base (1), characterized in that, A fixed support frame (2) is fixedly installed on the upper surface of the base (1), and a lifting mechanism (3) is installed on the surface of the fixed support frame (2). A digging mechanism (4) is fixed at the bottom end of the lifting mechanism (3). The lifting mechanism (3) includes a lifting column (301) and a drive box (302). The upper surface of the fixed support frame (2) is provided with a rectangular limiting hole that matches the lifting column (301). The lifting column (301) is slidably connected to the inner wall of the rectangular limiting hole. Both sides of the lifting column (301) are provided with strip grooves (304). The inner wall of the strip grooves (304) is fixedly provided with positioning racks (305). The inner wall of the drive box (302) is rotatably connected with two rotating shafts (306). The surface of the rotating shafts (306) is fixedly connected with linkage gears (307). The two linkage gears (307) are symmetrically distributed on both sides of the lifting column (301), and the two linkage gears (307) mesh with the two positioning racks (305) respectively. The excavation mechanism (4) includes an adjustment box (401) fixedly installed at the bottom of the lifting column (301). A two-way lead screw (402) is rotatably connected to the inner wall of the adjustment box (401). Two adjustment mounting seats (403) are threadedly connected to the surface of the two-way lead screw (402). One end of the adjustment mounting seat (403) extends to the outside of the adjustment box (401), and an electric drill (404) is fixedly installed on the surface of the adjustment mounting seat (403).
2. The farmland boundary adjustment device according to claim 1, characterized in that, An adjustment motor (405) is fixedly installed at the end of the adjustment box (401). The rotation shaft of the adjustment motor (405) extends into the interior of the adjustment box (401) and is fixedly connected to one end of the bidirectional lead screw (402). A spiral drill bit (406) is fixedly installed at the output end of the electric drill (404).
3. The farmland boundary adjustment device according to claim 1, characterized in that, A drive motor (308) is fixedly installed on the outer surface of the drive box (302). The rotation shaft of the drive motor (308) extends into the interior of the drive box (302) and is fixedly connected to a drive rod (309). Two worm gears (310) are fixedly installed on the surface of the drive rod (309). One end of each of the two rotating shafts (306) is fixedly connected to a worm wheel (311).
4. The farmland boundary adjustment device according to claim 3, characterized in that, The worm (310) is positioned opposite to the worm wheel (311). The worm (310) meshes with the worm wheel (311). The threads of the two worms (310) are opposite to each other. The drive motor (308) drives the two rotating shafts (306) to rotate in opposite directions through the worm (310) and the worm wheel (311).
5. The farmland boundary adjustment device according to claim 1, characterized in that, The surface of the adjustment box (401) is provided with scale lines, and the position of the scale lines corresponds to the adjustment mounting base (403).
6. The farmland boundary adjustment device according to claim 1, characterized in that, The fixed support frame (2) consists of two triangular brackets and a top plate. The top plate is fixedly installed on the top of the two triangular brackets, and the drive box (302) is fixedly installed on the upper surface of the top plate.
7. The farmland boundary adjustment device according to claim 1, characterized in that, The base (1) has a U-shaped structure, and four casters (5) are installed at the bottom of the base (1). The casters (5) are universal casters with brakes.
Citation Information
Patent Citations
Land planning design boundary post positioning device
CN222894017U