Adjustable isolation net for corn inbred isolation seed production
By designing an adjustable isolation net frame, and utilizing height adjustment and fixing mechanisms, the problem of traditional net frames being unable to adapt to changes in corn growth height has been solved. This enables convenient height adjustment and fixing of the net frame, improving operational efficiency and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUXIONG JINQIULE AGRICULTURAL RESEARCH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-23
Smart Images

Figure CN224386347U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of isolated seed production of maize inbred lines, and in particular to an adjustable isolation net frame for isolated seed production of maize inbred lines. Background Technology
[0002] Maize inbred lines refer to maize varieties with stable and consistent genetic traits that have been bred through multiple generations of self-pollination and selection. They are the "parental materials" used to produce hybrid seeds in hybrid maize breeding. The purity of inbred lines directly affects the quality of hybrid seeds. Therefore, it is necessary to strictly avoid contamination by foreign pollen during the propagation or seed production process. To prevent maize inbred lines from hybridizing with pollen from other maize varieties during propagation or seed production, which would lead to a decrease in purity, it is necessary to isolate their planting areas from other maize varieties through physical or spatial means. This process is called "isolation seed production." Common isolation methods include spatial isolation, temporal isolation, and physical isolation.
[0003] When related maize inbred lines are isolated for seed production, such as when physical isolation is used, isolation net frames are usually used. That is, a structure similar to a fence or shed is formed by a net frame composed of a support and mesh materials such as nylon netting or gauze, which surrounds the planting area of maize inbred lines, thereby achieving the effect of isolating the planting area of maize inbred lines for seed production.
[0004] However, when using the above methods, the traditional net frame structure is often fixed, while the growth height of corn is often uncontrollable. This means that the net frame of different heights often needs to be replaced to achieve normal isolation and seed production of corn, which is troublesome and time-consuming to operate and quite inconvenient to use.
[0005] Therefore, it is necessary to provide an adjustable isolation net frame for isolated seed production of maize inbred lines to solve the above problems. Utility Model Content
[0006] To address the technical problem that the height of corn growth often necessitates replacing the existing net frame with one of different heights to achieve proper isolation and seed production, which is cumbersome and time-consuming, this invention provides an adjustable isolation net frame for isolated seed production of corn inbred lines.
[0007] The adjustable isolation net frame for isolated seed production of maize inbred lines provided by this utility model includes: a plurality of support frames, the top of which is provided with a height adjustment mechanism; the height adjustment mechanism includes a plurality of adjustment grooves, a plurality of telescopic frames, a plurality of first threaded holes, a plurality of first locking screws, a plurality of support components, and a plurality of ground-gripping components. The plurality of adjustment grooves are respectively opened on the top of the plurality of support frames, the two ends of the plurality of telescopic frames are respectively slidably connected to the top of the plurality of support frames by engaging with the plurality of adjustment grooves, the plurality of first threaded holes are respectively opened on the side walls of the plurality of support frames and communicate with the adjustment grooves, the plurality of first locking screws are respectively rotatably connected to the side walls of the plurality of support frames by engaging with the plurality of first threaded holes, the plurality of support components are symmetrically installed on the side walls of the plurality of support frames, and the plurality of ground-gripping components are respectively installed on the bottom of the plurality of support frames; a fixing mechanism is located on the side walls of the support frames and the height adjustment mechanism for fixing the isolation net.
[0008] Preferably, the support assembly includes a support block, a support rod, and a telescopic unit. One end of the support block is fixedly connected to the side wall of the support frame, one end of the support rod is rotatably connected to the middle of the other end of the support block, and the telescopic unit is installed at the other end of the support rod.
[0009] Preferably, the telescopic unit includes a telescopic groove, a telescopic rod, a second threaded hole, and a second locking screw. The telescopic groove is opened on the inner side of the other end of the support rod. The side wall of the telescopic rod is slidably connected to the side wall of the telescopic groove. The second threaded hole is opened on the side wall of the support rod and communicates with the telescopic groove. The second locking screw is rotatably connected to the side wall of the support rod by engaging with the second threaded hole.
[0010] Preferably, the gripping assembly includes a ground cone, a foot pedal, and several stabilizing units. The top of the ground cone is fixedly connected to the bottom of the support frame, one end of the foot pedal is fixedly connected to the top of the side wall of the ground cone, and the several stabilizing units are evenly distributed and installed on the side wall of the ground cone.
[0011] Preferably, the stabilizing unit includes a telescopic hole, a spring, and a ground-gripping cone. The telescopic hole is formed on the side wall of the ground-gripping cone, and one end of the ground-gripping cone is elastically connected to one end of the telescopic hole by a spring.
[0012] Preferably, the fixing mechanism includes a plurality of first magnet blocks and a plurality of second magnet blocks, one end of the plurality of first magnet blocks being uniformly distributed and fixedly connected to the side walls of a plurality of support frames and a plurality of telescopic frames, and the plurality of second magnet blocks being respectively adsorbed and connected to the other end of the plurality of first magnet blocks.
[0013] Compared with related technologies, the adjustable isolation net frame for isolated seed production of maize inbred lines provided by this utility model has the following beneficial effects:
[0014] By setting up a height adjustment mechanism, the height of the isolation enclosure can be directly adjusted to increase or decrease according to the growth height of the corn, thus eliminating the need to replace the net frame with one of different heights for isolation enclosure. This makes the operation simple, convenient, time-saving, and labor-saving, effectively improving the ease of use. Furthermore, by setting up a fixing mechanism, the nylon net or yarn net can be easily magnetically attached and fixed as needed, further enhancing the ease of use. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of the present invention;
[0016] Figure 2 Exploded view of a partial structure of the height adjustment mechanism provided by this utility model;
[0017] Figure 3 A partial exploded cross-sectional view of the support component provided by this utility model;
[0018] Figure 4 An exploded view of a partial structure of the gripping component provided by this utility model;
[0019] Figure 5 This is an enlarged schematic diagram of a portion of the fixing mechanism provided by this utility model.
[0020] The diagram shows the following components: 1. Support frame; 2. Height adjustment mechanism; 201. Adjustment groove; 202. Telescopic frame; 203. First threaded hole; 204. First locking screw; 3. Support assembly; 301. Support block; 302. Support rod; 4. Telescopic unit; 401. Telescopic groove; 402. Telescopic rod; 403. Second threaded hole; 404. Second locking screw; 5. Ground gripping assembly; 501. Ground cone; 502. Foot pedal; 6. Stabilizing unit; 601. Telescopic hole; 602. Spring; 603. Ground gripping cone; 7. Fixing mechanism; 701. First magnet block; 702. Second magnet block. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please refer to the following: Figures 1 to 5An adjustable isolation net frame for isolated seed production of maize inbred lines includes: several support frames 1, with a height adjustment mechanism 2 installed on the top of each support frame 1; the height adjustment mechanism 2 includes several adjustment grooves 201, several telescopic frames 202, several first threaded holes 203, several first locking screws 204, several support components 3, and several gripping components 5. The adjustment grooves 201 are respectively opened on the top of the support frames 1, and the two ends of the telescopic frames 202 are slidably connected to the support frames 1 by engaging with the adjustment grooves 201. On the top of the dry support frame 1, a plurality of first threaded holes 203 are respectively opened on the side walls of the plurality of support frames 1 and are connected to the adjusting slide groove 201. A plurality of first locking screws 204 are rotatably connected to the side walls of the plurality of support frames 1 by engaging with the plurality of first threaded holes 203. A plurality of support components 3 are symmetrically installed on the side walls of the plurality of support frames 1. A plurality of ground gripping components 5 are respectively installed on the bottom of the plurality of support frames 1. The fixing mechanism 7 is located on the side walls of the support frame 1 and the height adjustment mechanism 2 for fixing the isolation net.
[0023] The support assembly 3 includes a support block 301, a support rod 302, and a telescopic unit 4. One end of the support block 301 is fixedly connected to the side wall of the support frame 1, one end of the support rod 302 is rotatably connected to the middle of the other end of the support block 301, and the telescopic unit 4 is installed on the other end of the support rod 302.
[0024] The telescopic unit 4 includes a telescopic groove 401, a telescopic rod 402, a second threaded hole 403, and a second locking screw 404. The telescopic groove 401 is opened on the inner side of the other end of the support rod 302. The side wall of the telescopic rod 402 is slidably connected to the side wall of the telescopic groove 401. The second threaded hole 403 is opened on the side wall of the support rod 302 and communicates with the telescopic groove 401. The second locking screw 404 is rotatably connected to the side wall of the support rod 302 by engaging with the second threaded hole 403.
[0025] The gripping assembly 5 includes a ground cone 501, a foot pedal 502, and several stabilizing units 6. The top of the ground cone 501 is fixedly connected to the bottom of the support frame 1, one end of the foot pedal 502 is fixedly connected to the top of the side wall of the ground cone 501, and several stabilizing units 6 are evenly distributed and installed on the side wall of the ground cone 501.
[0026] The stabilizing unit 6 includes a telescopic hole 601, a spring 602, and a ground-gripping cone 603. The telescopic hole 601 is opened on the side wall of the ground-gripping cone 501, and one end of the ground-gripping cone 603 is elastically connected to one end of the telescopic hole 601 through the spring 602.
[0027] In the specific implementation process, firstly, several support frames 1 are evenly distributed on both sides of the corn inbred line planting area. Then, by stepping on the foot pedal 502, the ground-inserting cones 501 are inserted into the soil. A strong spring 602 provides force, causing the gripping cones 603 to extend from the telescopic holes 601. The extension of the gripping cones 603 increases the friction between the ground-inserting cones 501 and the soil, thereby improving the stability of the ground-inserting cones 501 after insertion. At this point, the support frames 1 are erected on both sides of the planting area by the ground-inserting cones 501. Finally, the fixing mechanism 7 secures the nylon netting or mesh used for isolation to the support frames. The support frame 1 and the side wall of the telescopic frame 202 are used to enclose and isolate the corn in the planting area through nylon netting or gauze. When the corn grows taller, the first locking screw 204 is rotated to allow it to rotate outward through the first threaded hole 203 on the side wall of the support frame 1. The outward rotation of the first locking screw 204 loosens the abutment limit on the telescopic frame 202. At this time, pulling the telescopic frame 202 upward allows it to slide upward through the adjustment groove 201 on the top of the support frame 1. The upward movement of the telescopic frame 202 increases the height of the enclosure. Then, the first locking screw 204 is rotated in the opposite direction to allow it to rotate inward on the side wall of the support frame 1. The first locking screw 204 rotates inward to abut against the side wall of the telescopic frame 202, thus limiting and fixing the increased telescopic frame 202. Simultaneously, after the telescopic frame 202 increases in height, the support block 301 supports the rotating support rod 302, allowing it to rotate open against the side wall of the support frame 1. Then, the second locking screw 404 rotates outward through the second threaded hole 403 against the side wall of the support rod 302. This outward rotation of the second locking screw 404 releases the abutment limit on the telescopic rod 402. At this point, pulling the telescopic rod 402 outward allows it to slide out of the telescopic groove 401. This sliding extension of the telescopic rod 402... It can be pressed against the ground, and by rotating the second locking screw 404 in the opposite direction, it can be rotated inward on the side wall of the support rod 302. By rotating the second locking screw 404 inward, it can be pressed against the side wall of the telescopic rod 402, thereby limiting and fixing the extended telescopic rod 402. At this time, the telescopic rod 402 pressed against the ground, together with the support rod 302, can form a triangular support structure with the support frame 1, thereby improving the stability of the support frame 1 after the telescopic frame 202 is raised. In this way, the height of the isolation enclosure can be directly adjusted and increased according to the growth height of the corn, so that there is no need to replace the net frame of different heights for isolation enclosure. The operation is simple, convenient, time-saving and labor-saving, effectively improving the convenience of use.
[0028] Furthermore, the fixing mechanism 7 includes a plurality of first magnet blocks 701 and a plurality of second magnet blocks 702. One end of the plurality of first magnet blocks 701 is uniformly distributed and fixedly connected to the side walls of a plurality of support frames 1 and a plurality of telescopic frames 202. The plurality of second magnet blocks 702 are respectively adsorbed and connected to the other end of the plurality of first magnet blocks 701.
[0029] Based on the above embodiments, after the support frame 1 and telescopic frame 202 are fixedly installed on both sides of the planting area, the second magnet 702, which is attached to the first magnet 701, is removed. Then, the nylon net or gauze is attached to one end of the first magnet 701, and the second magnet 702 is reattached to the first magnet 701. This fixes the nylon net or gauze between the first magnet 701 and the second magnet 702. Similarly, the nylon net or gauze is fixed along the trajectory of the support frame 1 and the telescopic frame 202. This allows the nylon net or gauze to surround and isolate the planting area in conjunction with the support frame 1 and the telescopic frame 202. This enables convenient magnetic attachment and fixation of the nylon net or gauze according to usage needs, thereby effectively improving the ease of use.
[0030] It should be noted that, in order to improve the stability of the overall structure, the first magnet block 701 and the second magnet block 702 can be made of magnets with strong magnetism, and the spring 602 can be made of a model with high yield strength, i.e. high elasticity. The specific configuration can be freely adjusted according to the actual application scenario.
[0031] The working principle of the adjustable isolation net frame for isolated seed production of maize inbred lines provided by this utility model is as follows:
[0032] In use, firstly, several support frames 1 are evenly distributed on both sides of the corn inbred line planting area. Then, by stepping on the foot pedal 502, the planting cone 501 is inserted into the soil. A strong spring 602 provides force, causing the gripping cone 603 to extend from the telescopic hole 601. The extension of the gripping cone 603 increases the friction between the planting cone 501 and the soil, thus improving the stability of the planting cone 501 after it is inserted into the ground. At this point, the support frames 1 are erected on both sides of the planting area. Then, the fixing mechanism 7 secures the nylon netting or mesh used for isolation to the side walls of the support frames 1 and the telescopic frame 202, allowing the corn within the planting area to be isolated through the nylon netting or mesh. The corn is enclosed and isolated. As the corn grows taller, rotating the first locking screw 204 allows it to rotate outward through the first threaded hole 203 against the side wall of the support frame 1. This outward rotation of the first locking screw 204 releases the contact limit on the telescopic frame 202. At this point, pulling up the telescopic frame 202 allows it to slide upward through the adjusting groove 201 on the top of the support frame 1, increasing the height of the enclosure. Then, rotating the first locking screw 204 in the opposite direction allows it to rotate inward against the side wall of the support frame 1, abutting against the side wall of the telescopic frame 202. This effectively limits and fixes the increased height of the telescopic frame 202. After the telescopic frame 202 is raised, the support block 301 supports the rotating support rod 302, causing it to rotate and open on the side wall of the support frame 1. Then, by rotating the second locking screw 404, it rotates outward through the second threaded hole 403 on the side wall of the support rod 302. This outward rotation of the second locking screw 404 releases the contact limit on the telescopic rod 402. At this point, pulling the telescopic rod 402 outward allows it to slide out of the telescopic groove 401, reaching the ground. Reverse rotation of the second locking screw 404 causes it to rotate inward on the side wall of the support rod 302, again reaching the side wall of the telescopic rod 402. The extended telescopic rod 402 can be limited and fixed. At this time, the telescopic rod 402, which is against the ground, can cooperate with the support rod 302 to form a triangular support structure with the support frame 1, thereby improving the stability of the support frame 1 after the telescopic frame 202 is raised. This allows for direct telescopic adjustment of the height of the isolation enclosure according to the growth height of the corn, eliminating the need to replace the net frame with one of different heights for isolation enclosure. The operation is simple, convenient, time-saving, and labor-saving, effectively improving the ease of use. Next, after the support frame 1 and the telescopic frame 202 are fixedly erected on both sides of the planting area, the second magnet 702, which is attached to the first magnet 701, is removed, and then a nylon net or gauze is attached to one end of the first magnet 701.Then, the second magnet 702 is reattached to the first magnet 701, thus fixing the nylon mesh or gauze between the first and second magnets 701 and 702. Similarly, the nylon mesh or gauze is fixed along the tracks of the support frame 1 and the telescopic frame 202, allowing it to surround and isolate the planting area. This effectively and conveniently allows for easy magnetic attachment and fixation of the nylon mesh or gauze as needed, further improving usability.
[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An adjustable isolation net frame for isolated seed production of maize inbred lines, characterized in that, include: A plurality of support frames (1), and a height adjustment mechanism (2) is provided on the top of the plurality of support frames (1); The height adjustment mechanism (2) includes several adjustment grooves (201), several telescopic frames (202), several first threaded holes (203), several first locking screws (204), several support components (3), and several gripping components (5). Several adjustment grooves (201) are respectively opened on the top of several support frames (1). The two ends of several telescopic frames (202) are respectively slidably connected to the top of several support frames (1) by engaging with several adjustment grooves (201). Several first threaded holes (203) are respectively opened on the side wall of several support frames (1) and communicate with the adjustment grooves (201). Several first locking screws (204) are respectively rotatably connected to the side wall of several support frames (1) by engaging with several first threaded holes (203). Several support components (3) are symmetrically installed on the side wall of several support frames (1). Several gripping components (5) are respectively installed on the bottom of several support frames (1). The fixing mechanism (7) is located on the side wall of the support frame (1) and the height adjustment mechanism (2) for fixing the isolation net.
2. The adjustable isolation net frame for isolated seed production of maize inbred lines according to claim 1, characterized in that, The support assembly (3) includes a support block (301), a support rod (302) and a telescopic unit (4). One end of the support block (301) is fixedly connected to the side wall of the support frame (1), one end of the support rod (302) is rotatably connected to the middle of the other end of the support block (301), and the telescopic unit (4) is installed on the other end of the support rod (302).
3. The adjustable isolation net frame for isolated seed production of maize inbred lines according to claim 2, characterized in that, The telescopic unit (4) includes a telescopic groove (401), a telescopic rod (402), a second threaded hole (403), and a second locking screw (404). The telescopic groove (401) is opened on the inner side of the other end of the support rod (302). The side wall of the telescopic rod (402) is slidably connected to the side wall of the telescopic groove (401). The second threaded hole (403) is opened on the side wall of the support rod (302) and communicates with the telescopic groove (401). The second locking screw (404) is rotatably connected to the side wall of the support rod (302) by engaging with the second threaded hole (403).
4. The adjustable isolation net frame for isolated seed production of maize inbred lines according to claim 1, characterized in that, The gripping assembly (5) includes a ground cone (501), a foot pedal (502), and several stabilizing units (6). The top of the ground cone (501) is fixedly connected to the bottom of the support frame (1), and one end of the foot pedal (502) is fixedly connected to the top of the side wall of the ground cone (501). Several stabilizing units (6) are evenly distributed and installed on the side wall of the ground cone (501).
5. The adjustable isolation net frame for isolated seed production of maize inbred lines according to claim 4, characterized in that, The stabilizing unit (6) includes a telescopic hole (601), a spring (602), and a gripping cone (603). The telescopic hole (601) is opened on the side wall of the grounding cone (501), and one end of the gripping cone (603) is elastically connected to one end of the telescopic hole (601) by the spring (602).
6. The adjustable isolation net frame for isolated seed production of maize inbred lines according to claim 1, characterized in that, The fixing mechanism (7) includes a plurality of first magnet blocks (701) and a plurality of second magnet blocks (702). One end of the plurality of first magnet blocks (701) is uniformly distributed and fixedly connected to the side walls of a plurality of support frames (1) and a plurality of telescopic frames (202). The plurality of second magnet blocks (702) are respectively adsorbed and connected to the other end of the plurality of first magnet blocks (701).