An adjustable breeding rack for rapeseed breeding
The modular design of the rapeseed breeding rack solves the problems of disassembly and transportation of the seedling rack, and enables spatial adjustment and light optimization according to the rapeseed growth period, thereby improving breeding efficiency and light utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 龙新乡综合保障和技术服务中心
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-30
AI Technical Summary
The existing rapeseed seedling racks are structurally integrated, making them difficult to disassemble and transport. They also cannot adapt to the changes in growth height of rapeseed from the seedling stage to the mature seedling stage, resulting in low light utilization and wasted space.
Several sets of trays and four sets of brackets are connected by fixing bolts. The brackets are equipped with adjustment holes and positioning blocks. The trays are detachable and the shelf spacing is adjustable. Combined with anti-fall screws and LED supplementary lights, modular design and lighting optimization are achieved.
It enables convenient disassembly and transportation of seedling racks, adapts to the space requirements of rapeseed at different growth stages, improves light utilization and reduces space waste, and enhances breeding efficiency.
Smart Images

Figure CN224419505U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rapeseed cultivation equipment, specifically an adjustable breeding rack for rapeseed breeding. Background Technology
[0002] Rapeseed seedling cultivation involves carefully selected and processed rapeseed seeds being sown manually in specially designed seedbeds or seedling facilities under suitable environmental conditions. Scientific cultivation and management methods are then used to promote successful seed germination and vigorous seedling growth, resulting in high-quality rapeseed seedlings with robust root systems, appropriate plant height, and sufficient leaf count. This provides a good seedling foundation for subsequent field transplanting, ensuring healthy growth of rapeseed and improving yield and quality. This is a key early-stage agricultural technology in the planting process.
[0003] Rapeseed seedling cultivation often requires the use of seedling racks. A search revealed Chinese patent application number CN202320793297.6, which discloses a seedling rack that eliminates the spraying method and uses a circulating soaking method to reduce waste during the seedling process and facilitate humidity management. The rack includes a water tank and a water inlet. The water tank has an internal chamber, and an opening at the top that communicates with the chamber. The water inlet is installed on the water tank and communicates with the chamber. The rack also includes a lifting structure and a rotating structure. The water tank is mounted on the lifting structure, and the rotating structure is mounted on the lifting structure.
[0004] The above-mentioned technical solutions and traditional seedling racks still have defects. For example, the structure of the seedling rack is relatively integrated, which makes it inconvenient to disassemble and transport. If the spacing between the shelves is a fixed value (usually 30-40cm), it cannot adapt to the growth height changes of rapeseed from the seedling stage (5-10cm tall) to the mature seedling stage (30-50cm tall), which can easily lead to the upper layer blocking the light of the lower layer (light utilization rate ≤60%) or wasting space.
[0005] Therefore, we need to propose an adjustable breeding rack for rapeseed breeding. Utility Model Content
[0006] The purpose of this utility model is to provide an adjustable seedling rack for rapeseed breeding, which adopts a structure in which several sets of trays and four sets of supports are connected by fixing bolts. This changes the traditional integrated structure of seedling racks. Each component is detachable, which facilitates disassembly and assembly during transportation, reducing transportation difficulty and cost, thereby solving the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An adjustable breeding rack for rapeseed breeding includes:
[0009] Several sets of pallets and four sets of supports. The pallets are rectangular in shape, and the four sets of supports are fixed to both sides of the pallet with fixing bolts to support the pallet.
[0010] The support is a vertical angle steel structure. The right-angle openings of the two sets of supports on the same side of the pallet are arranged opposite each other. Positioning blocks are symmetrically arranged on the outer walls of both sides of the pallet. The two sets of right-angled sides of the support are respectively attached to the positioning blocks and the outer wall of the pallet.
[0011] Preferably, the bracket and the positioning block have adjustment holes on the side where they fit together, and multiple sets of adjustment holes are distributed longitudinally at equal intervals.
[0012] Preferably, the positioning block has a positioning hole, the positioning block and the adjustment hole are adapted to each other, and the positioning block is fixed by the bracket through the cooperation of the fixing bolt, the adjustment hole and the positioning hole.
[0013] Preferably, it also includes a support basket for supporting rapeseed seedlings, which is disposed inside the tray, and a stainless steel filter screen is provided at the bottom of the support basket.
[0014] Preferably, the inner wall of the tray is provided with a retaining ring, and the top of the support basket is provided with a rim, the support basket is inserted into the retaining ring and the rim is supported by the retaining ring.
[0015] Preferably, the tray is filled with nutrient solution below the retaining ring, and the support basket is equipped with crisscrossing partitions that divide the inner cavity of the process basket into multiple independent culture tanks. When the support basket is inserted into the retaining ring, the filter at the bottom of the support basket is inserted into the nutrient solution so that the nutrient solution can be absorbed by the seedlings.
[0016] Preferably, it also includes a fall arresting screw, which is set between two sets of brackets on the same side of the pallet. The fall arresting screw is inserted into the adjustment holes of the two sets of brackets. The fall arresting screw is located below the positioning block, and both ends of the fall arresting screw are threaded with three-pronged nuts. When the pallet falls accidentally, the fall arresting screw limits and supports the positioning block.
[0017] Preferably, the bottom of the tray is equipped with an LED supplemental light to provide supplemental lighting for the seedlings on the tray below. The LED supplemental light has a power of 30W and a color temperature of 5000-6500K.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. This utility model changes the traditional integrated structure of seedling racks by adopting a structure in which several sets of trays and four sets of supports are connected by fixing bolts. Each component is detachable, which makes it convenient to disassemble and assemble during transportation, reducing transportation difficulty and cost.
[0020] 2. The support frame has multiple sets of adjustment holes distributed longitudinally at equal intervals. The positioning blocks cooperate with the adjustment holes at different positions through fixing bolts, which can flexibly adjust the spacing between the tray shelves. This can adapt to the growth height changes of rapeseed from the seedling stage to the mature seedling stage, avoid the upper layer blocking the lower layer's light, improve the light utilization rate (theoretically, it can be improved to a higher level, effectively solving the problem of the original light utilization rate ≤60%), and at the same time reduce space waste. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the tray of this utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the bracket of this utility model;
[0024] Figure 4 This is a structural schematic diagram of the LED fill light of this utility model.
[0025] In the diagram: 1. Bracket; 2. Tray; 3. Adjustment hole; 4. Positioning block; 5. Positioning hole; 6. Snap ring; 7. Support basket; 8. Filter screen; 9. Partition; 10. Anti-fall screw; 11. Three-jaw nut; 12. LED supplementary light. Detailed Implementation
[0026] 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.
[0027] Please see Figure 1-4 This utility model provides a technical solution:
[0028] An adjustable breeding rack for rapeseed breeding includes:
[0029] Several sets of trays 2 and four sets of supports 1. The trays 2 are rectangular in shape, and the four sets of supports 1 are fixed to both sides of the trays 2 by fixing bolts to support the trays 2.
[0030] The support 1 is a vertical angle steel structure. The right-angle openings of the two sets of supports 1 located on the same side of the pallet 2 are arranged opposite each other. Positioning blocks 4 are symmetrically arranged on the outer walls of both sides of the pallet 2. The two sets of right-angled sides of the support 1 are respectively attached to the positioning blocks 4 and the outer wall of the pallet 2.
[0031] Four sets of angle steel brackets 1 are connected to both sides of the tray 2 by fixing bolts. The right-angled sides of the brackets 1 are respectively attached to the positioning block 4 and the outer wall of the tray 2 (attachment gap ≤ 0.5mm) to form a stable support structure. The right-angled openings of the angle steel are set opposite each other, and the lateral and longitudinal displacement of the tray 2 can be constrained by the two right-angled sides at the same time.
[0032] The above technical solution can replace the traditional integral frame and realize modular assembly. If the thickness of the angle steel bracket 1 is 3-4mm, its load-bearing capacity is ≥50kg, and a single tray 2 can hold 20-30 rapeseed plants. The detachable design saves a lot of space when the parts are stacked during transportation, solving the problem of difficult transportation of traditional seedling racks.
[0033] For a preferred implementation, please refer to Figure 1-4 :
[0034] An adjustment hole 3 is provided on the side where the bracket 1 and the positioning block 4 fit together. Multiple sets of adjustment holes 3 are distributed longitudinally at equal intervals. A positioning hole 5 is provided on the positioning block 4. The positioning block 4 and the adjustment hole 3 are adapted to each other. The positioning block 4 is fixed to the bracket 1 by the cooperation of the fixing bolt, the adjustment hole 3 and the positioning hole 5.
[0035] By setting adjustment holes 3 and positioning holes 5 on the bracket 1 and positioning block 4 respectively, and using fixing bolts passing through the adjustment holes 3 and positioning holes 5 at different positions, the positioning block 4 can be fixed at different heights on the bracket 1. Since the positioning block 4 is connected to the tray 2, the shelf spacing between the trays 2 can be adjusted.
[0036] The above technical solution allows for flexible adjustment of the spacing between trays 2 according to the changes in the growth height of rapeseed from seedling stage to mature seedling stage. This avoids the problem of the upper layer blocking the light of the lower layer, improves the light utilization rate, reduces space waste, and meets the space requirements of rapeseed at different growth stages.
[0037] For example, the adjustment hole 3 (longitudinal spacing 5cm) of bracket 1, in conjunction with the positioning block 4, can achieve stepless adjustment of the layer spacing from 30 to 80cm (adjustment accuracy ±1cm): 30cm for seedling stage (plant height 5-10cm) and 60-80cm for mature seedling stage (plant height 30-50cm), thereby avoiding upper layer shading (light utilization rate increases from 60% to 90%) and space waste.
[0038] For a preferred implementation, please refer to Figure 1-2 :
[0039] It also includes a support basket 7 for supporting rapeseed seedlings, which is set inside the tray 2. A stainless steel filter screen 8 is installed at the bottom of the support basket 7. A retaining ring 6 is provided on the inner wall of the tray 2, and a rim is provided on the top of the support basket 7. The support basket 7 is inserted into the retaining ring 6, and the rim is supported by the retaining ring 6. Nutrient solution is injected into the tray 2 below the retaining ring 6. The support basket 7 is equipped with crisscrossing partitions 9, which divide the inner cavity of the basket into multiple independent culture tanks. When the support basket 7 is inserted into the retaining ring 6, the filter screen 8 at the bottom of the support basket 7 extends into the nutrient solution so that the nutrient solution can be absorbed by the seedlings.
[0040] The support basket 7 is inserted into the tray 2 by the retaining ring 6 (fitting gap ≤1mm) through the edge. The bottom stainless steel filter screen 8 (pore size 1-2mm) is inserted into the nutrient solution in the tray 2 (depth 3-5mm) and the nutrient solution is transported to the seedling roots through capillary action. The partition 9 divides the support basket 7 into independent culture tanks (single tank size 10cm×10cm) to avoid root entanglement.
[0041] Function: It realizes "automatic nutrient solution supply + independent cultivation of individual plants", the filter screen 8 controls the water absorption rate to avoid root rot; the independent cultivation tank facilitates the observation and screening of individual plants, improves breeding efficiency, and the support basket 7 can be quickly removed for easy cleaning and replacement of nutrient solution.
[0042] For a preferred implementation, please refer to Figure 1-4 :
[0043] It also includes a fall arresting screw 10, which is set between two sets of brackets 1 on the same side of the pallet 2. The fall arresting screw 10 is inserted into the adjustment hole 3 of the two sets of brackets 1. The fall arresting screw 10 is located below the positioning block 4, and both ends of the fall arresting screw 10 are threaded with three-jaw nuts 11. When the pallet 2 falls accidentally, the fall arresting screw 10 limits and supports the positioning block 4.
[0044] The anti-fall screw 10 is inserted into the adjustment hole 3 of the bracket 1 (located 5-10cm below the positioning block 4), and the three-pronged nuts 11 at both ends are tightened to form a transverse support beam. When the fixing bolts loosen, the positioning block 4 will be supported by the anti-fall screw 10 (support force ≥30kg), preventing the tray 2 from falling directly.
[0045] The above technical solution can serve as a secondary safety protection, reducing the risk of the tray 2 falling; the screw can be adjusted synchronously with the height of the positioning block 4, and the adjustment hole 3 is used without the need for additional holes, thus not affecting the layer spacing adjustment function; at the same time, the three-jaw nut 11 facilitates quick loading and unloading.
[0046] For a preferred implementation, please refer to Figure 4 :
[0047] An LED supplemental light 12 is installed at the bottom of tray 2 to provide supplemental lighting for the seedlings on tray 2 below. The LED supplemental light 12 has a power of 30W and a color temperature of 5000-6500K.
[0048] The LED supplemental light 12 at the bottom of tray 2 provides a light source that simulates natural light. With a power of 30W, it can ensure that the light intensity of tray 2 below reaches 3000-5000 lux. The supplemental light is adjusted with the height of tray 2 to always maintain the optimal illumination distance (30-50cm) with the seedlings below.
[0049] It compensates for insufficient light caused by upper shading, improving the light uniformity of seedlings in the lower layer; specific color temperature promotes rapeseed photosynthesis, improves plant height uniformity, and reduces breeding errors caused by light differences.
[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. An adjustable breeding rack for rapeseed breeding, characterized in that, include: Several sets of trays (2) and four sets of supports (1). The trays (2) are rectangular in shape, and the four sets of supports (1) are fixed to both sides of the trays (2) by fixing bolts to support the trays (2). The bracket (1) is a vertical angle steel structure. The right-angle openings of the two brackets (1) located on the same side of the tray (2) are arranged opposite each other. Positioning blocks (4) are symmetrically arranged on the outer walls of both sides of the tray (2). The two right-angled sides of the bracket (1) are respectively attached to the positioning blocks (4) and the outer wall of the tray (2).
2. The adjustable breeding rack for rapeseed breeding according to claim 1, characterized in that: The bracket (1) and the positioning block (4) are fitted together on one side, and adjustment holes (3) are provided on the other side. Multiple sets of adjustment holes (3) are distributed longitudinally at equal intervals.
3. The adjustable breeding rack for rapeseed breeding according to claim 2, characterized in that: The positioning block (4) is provided with a positioning hole (5). The positioning block (4) and the adjustment hole (3) are adapted to each other. The positioning block (4) is fixed by the cooperation of the fixing bolt, the adjustment hole (3) and the positioning hole (5) and the bracket (1).
4. The adjustable breeding rack for rapeseed breeding according to claim 1, characterized in that: It also includes a support basket (7) for supporting rapeseed seedlings, which is set inside the tray (2), and a stainless steel filter screen (8) is provided at the bottom of the support basket (7).
5. The adjustable breeding rack for rapeseed breeding according to claim 4, characterized in that: The inner wall of the tray (2) is provided with a retaining ring (6), and the top of the support basket (7) is provided with a rim. The support basket (7) is inserted into the retaining ring (6) and the rim is supported by the retaining ring (6).
6. The adjustable breeding rack for rapeseed breeding according to claim 5, characterized in that: Nutrient solution is injected into the tray (2) below the retaining ring (6). The support basket (7) is filled with crisscrossing partitions (9). The partitions (9) divide the inner cavity of the process basket into multiple independent culture tanks. When the support basket (7) is inserted into the retaining ring (6), the filter screen (8) at the bottom of the support basket (7) penetrates into the nutrient solution so that the nutrient solution can be absorbed by the seedlings.
7. The adjustable breeding rack for rapeseed breeding according to claim 1, characterized in that: It also includes a fall arresting screw (10), which is set between two sets of brackets (1) on the same side of the tray (2). The fall arresting screw (10) is inserted into the adjustment hole (3) of the two sets of brackets (1). The fall arresting screw (10) is located below the positioning block (4), and both ends of the fall arresting screw (10) are threaded with three-jaw nuts (11). When the tray (2) falls accidentally, the fall arresting screw (10) limits and supports the positioning block (4).
8. The adjustable breeding rack for rapeseed breeding according to claim 1, characterized in that: An LED fill light (12) is installed at the bottom of the tray (2).