A furrow opening device for crop testing
By designing a trenching device with a base frame and trough structure, the problems of complex and inefficient trenching operations in the existing technology have been solved. This has enabled flexible row spacing adjustment and convenient trenching operations, reducing labor requirements and operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 天津市农业发展服务中心
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-26
AI Technical Summary
Existing ditching devices used in crop trials are complex to operate, inefficient, and require a lot of manual labor, making it difficult to meet the needs of different row spacing conditions.
Design a ditching device for crop testing, including a base frame and a ditcher in a trough. The open structure facilitates assembly and disassembly, while the slots and clamping parts fix the ditcher to ensure stability and flexibility, and support adjustments for various row spacings.
It improves the convenience and efficiency of trenching operations, reduces labor requirements, saves operating costs, and supports individual replacement of damaged parts.
Smart Images

Figure CN224402163U_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of agricultural machinery auxiliary facilities, and in particular relates to a trenching device for crop testing. Background Technology
[0002] Agricultural plot trials for crops such as wheat and rice include variety trials and cultivation trials. According to national or local trial designs, each trial group requires at least six varieties and three to four replicates to improve accuracy. The spacing between varieties, the row spacing within each variety, and the row length vary depending on the trial design. In field planning for crop plot trials, suitable plots are first selected according to the trial plan. The planning begins with determining the locations, including the inner and outer points of the experimental area, observation lanes, replicate spacing, and variety spacing. After determining the locations, workers lay out the lines according to these points. Each observation lane, replicate spacing, and variety spacing requires two lines, making the laying work complex and labor-intensive, which is not conducive to actual field operation. Furthermore, after laying the lines, marking each observation lane with a furrow opener is necessary, which is very complex and inefficient for different row spacing requirements. Therefore, it is necessary to improve the existing furrow opening devices. Summary of the Invention
[0003] In view of this, the present invention aims to overcome the deficiencies in the prior art and proposes a ditching device for crop testing.
[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:
[0005] A ditching device for crop testing includes a base frame with a trough along its length. Several ditchers are installed in the trough. One end of the trough has an open structure, and a stop block is detachably installed on the side of the open structure. Several slots are spaced apart on one side wall of the trough, and clamping parts are provided on the other side wall of the trough for each slot. Each ditcher includes a boom that slides with the trough. The lower end of the boom has an arc-shaped bend, and a plow head is installed at the bottom of the bend. The top of the boom has a sliding part that slides with the upper surface of the base frame. Each boom is engaged in a slot and is pressed by its corresponding clamping part, thereby confining the boom within the slot to prevent the ditcher from moving along the length of the base frame.
[0006] Furthermore, the base frame is equipped with 4-10 trenchers.
[0007] Furthermore, the sliding part includes extending from the boom toward the side away from the slot.
[0008] Furthermore, the depth of the card slot is 5-20mm.
[0009] Furthermore, the stop block includes a base, and connecting plates are provided on both sides of the base. The connecting plates are fixed to the base frame by connectors.
[0010] Furthermore, the connector is made of screws.
[0011] Furthermore, the clamping element uses a fully threaded screw.
[0012] Furthermore, the width of the boom is the same as the width of the chute, or the width of the boom is 2-5mm smaller than the width of the chute.
[0013] Compared with existing technologies, the present invention has the following advantages:
[0014] This invention features a simple and rationally designed structure. An open structure on one side of the base frame facilitates the installation and removal of the trenchers. The required number of trenchers can be installed according to actual needs, and they can be fixed in suitable positions on the base frame to meet working requirements. Operation is convenient and effectively improves work efficiency. Furthermore, even if one or more trenchers installed on the base frame are damaged, they can be replaced individually, saving on operating costs. Attached Figure Description
[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:
[0016] Figure 1 A schematic diagram of the structure created by this invention;
[0017] Figure 2 A schematic diagram of the base frame portion in this invention;
[0018] Figure 3 This is a schematic diagram of the base frame after the stop blocks have been removed in the invention.
[0019] Figure 4 A schematic diagram of the stop block in the present invention;
[0020] Figure 5 This is a schematic diagram of the trencher in the present invention;
[0021] Figure 6 This is a schematic diagram of the plowshare in this invention. Detailed Implementation
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.
[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.
[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0026] A trenching device for crop testing, such as Figures 1 to 6 As shown, the system includes a base frame 1, with a groove 2 extending along its length. Several trench openers 3 are installed within the groove. One end of the groove has an open structure 4, and a stop block 5 is detachably installed on the side of the open structure to close the open structure and prevent the trench openers from falling off under extreme conditions. In an optional embodiment, the stop block includes a base 12, with connecting plates 13 on both sides of the base. The connecting plates are fixed to the base frame by connectors 15. The connecting plates have connecting holes 14 for the connectors to pass through, while the base frame has fixing holes 16 near the open structure. Typically, the connecting holes are smooth holes, and the fixing holes are threaded holes.
[0027] The trencher includes a boom 8 that slides with the chute, an arc-shaped bend 9 at the lower end of the boom, a plow head 10 at the bottom of the bend, and a sliding part 11 at the top of the boom that slides with the upper surface of the base frame. The width of the boom is the same as the width of the chute, or the width of the boom is 2-5mm smaller than the width of the chute, so that the boom can slide into the chute through the open structure.
[0028] The slide has several slots 6 spaced apart on one side wall, and clamping elements 7 are provided on the other side wall corresponding to the slots. Typically, the slot depth (i.e., the distance from the slide side wall to the bottom surface of the slot) is 5-20 mm. For example, the base frame has 4-10 groove openers. Typically, the connecting parts are screws. The clamping elements are fully threaded screws.
[0029] As an example, the sliding part includes a section extending from the boom towards the side away from the slot. Each boom is engaged in a slot and is secured by its corresponding clamping member, thereby confining the boom within the slot. The slot restricts the trencher from moving along the length of the base frame, while the clamping member restricts the trencher from moving within the width of the groove, ensuring the reliability and stability of the connection between the trencher and the base frame.
[0030] This invention features a simple and rationally designed structure. An open structure on one side of the base frame facilitates the installation and removal of the trenchers. The required number of trenchers can be installed according to actual needs, and they can be fixed in suitable positions on the base frame to meet working requirements. Operation is convenient and effectively improves work efficiency. Furthermore, even if one or more trenchers installed on the base frame are damaged, they can be replaced individually, saving on operating costs.
[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A trenching device for crop testing, characterized in that: The device includes a base frame with a sluice groove along its length. Several trenchers are installed within the sluice groove. One end of the sluice groove has an open structure, and a stop block is detachably installed on the side of the open structure. Several slots are spaced apart on one side wall of the sluice groove, and clamping parts are provided on the other side wall of the sluice groove for each slot. Each trencher includes a boom that slides with the sluice groove. The lower end of the boom has an arc-shaped bend, and a plow head is installed at the bottom of the bend. The top of the boom has a sliding part that slides with the upper surface of the base frame. Each boom is engaged in a slot and is pressed by its corresponding clamping part, thereby confining the boom within the slot to prevent the trencher from moving along the length of the base frame.
2. The trenching device for crop testing according to claim 1, characterized in that: The base frame is equipped with 4-10 trenchers.
3. The trenching device for crop testing according to claim 1, characterized in that: The sliding part includes a section extending from the boom toward the side away from the slot.
4. The trenching device for crop testing according to claim 1, characterized in that: The depth of the slot is 5-20mm.
5. The trenching device for crop testing according to claim 1, characterized in that: The block includes a base, and connecting plates are provided on both sides of the base. The connecting plates are fixed to the base frame by connectors.
6. The trenching device for crop testing according to claim 5, characterized in that: The connector uses screws.
7. The trenching device for crop testing according to claim 1, characterized in that: The clamping component uses a fully threaded screw.
8. A ditching device for crop testing according to any one of claims 1 to 7, characterized in that: The boom width is the same as the chute width, or the boom width is 2-5mm smaller than the chute width.