Degradable seedling pot transplanting device

CN224611359UActive Publication Date: 2026-08-11QINGDAO AGRI TECH PROMOTION CENT (QINGDAO RURAL REVITALIZATION SERVICE CENT QINGDAO AGRI SCI & TECH RADIO & TELEVISION SCHOOL)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

但这一特性导致人工直接拿取时,手部施加的压力易使育苗钵变形,进而将内部用于培育植株的土壤挤出——既破坏了植株根系周围的土壤环境,影响定植后的成活率,也增加了移栽操作的繁琐性(需额外补充土壤或调整植株位置),现有钳式定植器依赖“铰接位置翻转”驱动夹板夹紧,其核心缺陷在于:

Benefits of technology

[0015]与现有技术相比,本专利的有益效果是:本专利通过“两个夹板直线夹紧育苗钵外侧壁”的设计,避免手部直接接触柔软的育苗钵本体,仅通过夹板对钵体外部施加稳定、均匀的夹持力,从根本上解决了“手动拿取挤土”的问题,直线夹紧方式:移动环沿横杆直线滑动,带动右侧夹板与左侧固定夹板平行靠近,使两个夹板的夹紧面始终稳定贴合育苗钵外侧壁,接触面积和接触位置全程不变,避免夹持过程中对钵体的“动态摩擦或挤压”;适配性夹持结构:夹板采用与育苗钵弧度匹配的弧形板,并内嵌橡胶垫既增加夹持摩擦力(防止打滑),又通过橡胶的缓冲作用分散压力,进一步避免钵体损坏。

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Abstract

This patent discloses a biodegradable seedling pot transplanter, including a crossbar. A rubber handle is fixedly installed on the outer wall of the crossbar. A fixing ring is fixedly installed on the left end of the outer wall of the crossbar, and a moving ring is slidably installed on the right end of the outer wall of the crossbar. A vertical plate is fixedly installed on the bottom end of the outer wall of both the fixing ring and the moving ring. A clamping plate is fixedly installed on the inner side of the vertical plate. This patent avoids direct contact between the hands and the soft seedling pot body by using a design of "two clamping plates clamping the outer wall of the seedling pot in a straight line". It applies a stable and uniform clamping force to the outside of the pot body only through the clamping plates, fundamentally solving the problem of "manually picking up and squeezing soil" and avoiding "dynamic friction or squeezing" of the pot body during the clamping process. The clamping plates adopt an arc-shaped plate that matches the curvature of the seedling pot and have embedded rubber pads to increase clamping friction (preventing slippage) and disperse pressure through the buffering effect of rubber, further preventing damage to the pot body.
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Description

Technical Field

[0001] This patent relates to the field of transplanter technology, specifically a biodegradable seedling pot transplanter. Background Technology

[0002] Because biodegradable seedling pots need to be buried in the soil along with the plant, their texture is designed to be very soft to ensure effective degradation. However, this characteristic means that when handled manually, the pressure applied by the hand can easily deform the seedling pot, squeezing out the soil used to cultivate the plant. This not only damages the soil environment around the plant roots, affecting the survival rate after transplanting, but also increases the complexity of transplanting (requiring additional soil or repositioning the plant). Existing clamp-type transplanters rely on a "hinged position flipping" mechanism to drive the clamping plates, and their core drawback is:

[0003] Dynamic changes in the clamping surface: When the hinge is flipped, the contact area between the clamp and the outer wall of the seedling pot will "increase from small to large", and the contact position will constantly shift, making it impossible to form a stable clamping area;

[0004] Localized pressure concentration: Unstable contact methods can easily lead to excessive localized pressure from the clamps on the soft seedling pots, causing the pots to crack and deform, which in turn affects the transplanting effect.

[0005] Therefore, we propose a biodegradable seedling pot transplanter. Utility Model Content

[0006] The purpose of this patent is to provide a biodegradable seedling pot transplanter to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this patent provides the following technical solution: a biodegradable seedling pot transplanter, comprising a crossbar, a rubber handle fixedly installed on the outer side wall of the crossbar, a fixing ring fixedly installed on the left end of the outer side wall of the crossbar, a movable ring slidably installed on the right end of the outer side wall of the crossbar, a vertical plate fixedly installed on the bottom end of the outer side wall of both the fixing ring and the movable ring, a clamping plate fixedly installed on the inner side of the vertical plate, and a biodegradable seedling pot provided between the two clamping plates;

[0008] The movable ring includes a square ring with a square hole in the middle that fits onto the side wall of the crossbar. The upper and lower ends of the inner side wall of the square ring are provided with mounting grooves. A roller is rotatably connected to the mounting groove via a rotating shaft. The upper and lower sides of the side wall of the crossbar are provided with wheel grooves. The edge of the roller is rolled and installed inside the roller. The inner side wall of the square ring does not contact the side wall of the crossbar.

[0009] Preferably, the right end of the wheel groove is open.

[0010] Preferably, the right end of the crossbar is provided with a threaded groove, a threaded rod is screwed into the threaded groove, and a baffle is integrally formed on the right end of the threaded rod. The left side of the baffle covers the right side of the wheel groove on both sides.

[0011] Preferably, the square ring includes a first half-ring and a second half-ring, with the two ends of the first half-ring and the second half-ring fixed together.

[0012] Preferably, the clamping plate includes an arc-shaped plate, the inner side of which is an inner arc surface, the inner arc surface of which matches the curvature of the outer wall of the biodegradable seedling pot, and a rubber pad is embedded in the inner arc surface of the arc-shaped plate, the inner side of which is arc-shaped.

[0013] Preferably, insert plates are fixedly installed at both the front and rear ends of the inner side of the clamping plate, the top of the insert plate is provided with an inclined surface, and the bottom edge of the biodegradable seedling pot is provided with an annular conical surface.

[0014] Preferably, a fixing plate is fixedly installed on the top of the outer side wall of the movable ring.

[0015] Compared with existing technologies, the beneficial effects of this patent are as follows: This patent, through the design of "two clamping plates clamping the outer wall of the seedling pot in a straight line," avoids direct hand contact with the soft seedling pot body. It only applies a stable and uniform clamping force to the outside of the pot body through the clamping plates, fundamentally solving the problem of "manually picking up and squeezing soil." The straight clamping method is as follows: the moving ring slides in a straight line along the crossbar, driving the right clamping plate to move closer and parallel to the left fixed clamping plate, so that the clamping surfaces of the two clamping plates are always stably attached to the outer wall of the seedling pot. The contact area and contact position remain unchanged throughout the process, avoiding "dynamic friction or squeezing" of the pot body during clamping. The adaptable clamping structure is as follows: the clamping plates adopt an arc-shaped plate that matches the curvature of the seedling pot, and the embedded rubber pads not only increase the clamping friction (preventing slippage), but also disperse the pressure through the buffering effect of the rubber, further preventing damage to the pot body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall patent.

[0017] Figure 2 This is a schematic diagram of the moving ring of this patent.

[0018] Figure 3 This is a three-dimensional view of the square ring of this patent.

[0019] Figure 4 This is a top view of the clamping plate in this patent.

[0020] In the diagram: 1. Horizontal bar, 2. Rubber grip, 3. Fixed ring, 4. Moving ring, 5. Vertical plate, 6. Clamping plate, 7. Biodegradable seedling pot, 8. Square ring, 9. Installation groove, 10. Roller, 11. Wheel groove, 12. Threaded rod, 13. Baffle, 14. First half ring, 15. Second half ring, 16. Arc plate, 17. Rubber pad, 18. Insert plate, 19. Annular conical surface, 20. Fixed plate. Detailed Implementation

[0021] The technical solutions of this patent embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this patent, and not all of them. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0022] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This patent provides a technical solution: a biodegradable seedling pot transplanter, including a crossbar 1, a rubber handle 2 fixedly installed on the outer side wall of the crossbar 1, a fixing ring 3 fixedly installed on the left end of the outer side wall of the crossbar 1, a movable ring 4 slidably installed on the right end of the outer side wall of the crossbar 1, a vertical plate 5 fixedly installed on the bottom end of the outer side wall of both the fixing ring 3 and the movable ring 4, a clamping plate 6 fixedly installed on the inner side of the vertical plate 5, and a biodegradable seedling pot 7 provided between the two clamping plates 6;

[0023] Horizontal bar (1)

[0024] Functional positioning: The main support structure of the device must be both lightweight and resistant to bending.

[0025] Material: 6061-T6 aluminum alloy (density 2.7g / cm³) 3 It has a tensile strength ≥290MPa and a yield strength ≥240MPa. It is lightweight and has high strength, and is not easily deformed during long-term use.

[0026] parameter:

[0027] Cross-sectional dimensions: Square cross-section, 20mm x 20mm on each side (balancing grip and support, avoiding excessive thickness that could affect operation).

[0028] Length: 400mm (suitable for single-person operation, ensuring easy force application when gripping seedling pots)

[0029] Wheel groove (11): groove width 8mm, groove depth 5mm, matching the roller to ensure smooth rolling; open at the right end, with a length consistent with the crossbar.

[0030] Threaded groove: located in the middle of the right end, with a depth of 25mm and an inner diameter of 12mm, suitable for threaded rods (12).

[0031] Rubber grip (2)

[0032] Functional purpose: To improve hand grip comfort and increase friction to prevent slippage.

[0033] Material: Food-grade silicone (Shore hardness 60±5HA, density 1.1g / cm³) 3 It is non-toxic, environmentally friendly, and has good elasticity, so it won't feel uncomfortable to hold for a long time.

[0034] parameter:

[0035] Shape: An arc-shaped structure that fits the four fingers of the hand, 100mm in length.

[0036] Thickness: The maximum thickness on the outer side is 15mm, and the thickness at the inner side where it fits against the crossbar is 5mm, ensuring a cushioning effect when gripping.

[0037] Fixed ring (3) and movable ring (4)

[0038] (1) Fixing ring (3)

[0039] Material: ABS engineering plastic (density 1.05g / cm³) 3 Impact strength ≥20kJ / m 2 It is lightweight, impact-resistant, and not prone to aging.

[0040] parameter:

[0041] Shape: Square structure, inner hole size 20mm×20mm (interference fit to fix with crossbar), outer side length 40mm×40mm

[0042] Thickness: 15mm, to ensure the connection strength with the upright plate (5)

[0043] (2) Moving ring (4)

[0044] Overall material: ABS engineering plastic (same as the retaining ring, ensuring material consistency and lightweight).

[0045] Subdivision of component parameters:

[0046] Square ring (8): Inner hole 20mm×20mm (clear fit with crossbar, clearance 0.5mm, to ensure smooth sliding), outer side length 45mm×45mm, thickness 18mm

[0047] Mounting slots (9): 4 slots are provided for each moving ring (2 on the top and 2 on the bottom), with a slot width of 10mm and a slot depth of 8mm, to accommodate rollers (10).

[0048] Roller (10): Material is POM plastic (density 1.41g / cm³).3 With a friction coefficient ≤0.15, a diameter of 12mm, a thickness of 8mm, and a shaft made of 304 stainless steel (diameter 3mm, length 18mm), it ensures wear resistance and lightweight operation.

[0049] The first half ring (14) and the second half ring (15) are fixed at the joint with M3 screws (screw material is 304 stainless steel), and the joint gap is ≤0.2mm to ensure the stability of the structure.

[0050] Vertical board (5)

[0051] Material: 6061-T6 aluminum alloy (same density as the crossbar, reducing overall weight difference)

[0052] parameter:

[0053] Dimensions: 80mm high, 30mm wide, 3mm thick (balancing support and lightweight design to avoid excessive thickness and added weight)

[0054] Connection method: It is fixed to the fixed ring / moving ring by welding (the tensile strength of the weld is ≥200MPa), and fixed to the clamp (6) by M4 screws (the screw material is 304 stainless steel).

[0055] The biodegradable seedling pot 7 can be buried in the soil along with the plant. As the soil degrades, the texture of the biodegradable seedling pot becomes very soft. When planting, the soil inside can be easily squeezed out by hand. There are also clamp-type planting devices that use two clamps to clamp the biodegradable seedling pot by flipping the hinge. However, the driving force of the hinge flipping will cause the clamping surface of the clamp to gradually increase from small to large, and the position of the clamping surface on the outer wall of the biodegradable seedling pot will also change, so it is easy to damage the biodegradable seedling pot.

[0056] This device allows the two clamping plates 6 to be clamped in a straight line onto the outer wall of the biodegradable seedling pot 7 by directly bending the moving ring 4 to the left. This avoids the contact between the clamping surface and the outer wall of the biodegradable seedling pot 7 being variable, ensuring the clamping effect and preventing damage to the biodegradable seedling pot 7.

[0057] The movable ring 4 includes a square ring 8. The square hole in the middle of the square ring 8 is fitted onto the side wall of the crossbar 1. The upper and lower ends of the inner side wall of the square ring 8 are provided with mounting grooves 9. A roller 10 is rotatably connected in the mounting groove 9 through a rotating shaft. The upper and lower sides of the side wall of the crossbar 1 are provided with wheel grooves 11. The edge of the roller 10 is rolled and installed in the roller 10. The inner side wall of the square ring 8 does not contact the side wall of the crossbar 1.

[0058] Plyboard (6)

[0059] (1) Curved plate (16)

[0060] Material: ABS engineering plastic (density 1.05g / cm³) 3 (Flexible strength ≥ 80 MPa), lightweight and not easily damaged by pressure in seedling pots.

[0061] parameter:

[0062] Curvature: Matches the outer wall of the biodegradable seedling pot (7), and is suitable for common seedling pot sizes (diameter 80-120mm). The inner radius of the curved plate is 40-60mm (can be adjusted according to the specifications of the seedling pot).

[0063] Dimensions: Height 100mm, Width 50mm, Thickness 5mm, ensuring clamping area while reducing weight (2) Rubber pad (17)

[0064] Material: Nitrile rubber (Shore hardness 50±5HA, density 0.98g / cm³) 3 It has good elasticity, a high coefficient of friction (≥0.6), and is not prone to aging.

[0065] Parameters: 3mm thickness, perfectly fitting the inner curved surface of the curved plate, with edges flush with the edges of the curved plate.

[0066] (3) Insert plate (18)

[0067] Material: 6061-T6 aluminum alloy (2mm thickness, 20mm width, 30mm length), lightweight and with moderate sharpness.

[0068] Sloping parameters: sloping angle 30°, sloping length 15mm, for easy insertion into the bottom of the seedling pot.

[0069] Biodegradable seedling pots (7) (compatible specifications)

[0070] Material: Straw fiber + PLA composite biodegradable material (density 1.2g / cm³) 3 The degradation cycle is 3-6 months, which meets the GB / T38082-2019 standard.

[0071] parameter:

[0072] Outer diameter: 80-120mm (suitable for curved surfaces of clamping plates), height: 100-150mm

[0073] Annular conical surface (19): Conical surface angle 45°, height 10mm, matching the inclined surface of the insert plate (18).

[0074] If the object slides directly on the inner wall of the ring and onto the side wall of the crossbar 1, the sliding of the contact surface will result in greater friction, making it inconvenient for hand operation.

[0075] By setting the roller 10 to roll inside the roller 10 at the edge of the wheel body, the friction effect can be greatly reduced, and the smoothness of the movement of the moving ring 4 can be improved.

[0076] Specifically, the right end of the wheel groove 11 is open.

[0077] The right end of the wheel groove 11 is open, which makes it convenient to install the roller 10 in the wheel groove 11 from the right end of the wheel groove 11.

[0078] Specifically, the right end of the crossbar 1 is provided with a threaded groove, and a threaded rod 12 is screwed into the threaded groove. The right end of the threaded rod 12 is integrally formed with a baffle 13, and the left side of the baffle 13 covers the right side of the wheel groove 11 on both sides.

[0079] Threaded rod (12) and baffle (13)

[0080] Threaded rod (12): Made of 304 stainless steel (diameter 12mm, length 30mm, thread pitch 2mm), rust-proof and high strength.

[0081] Baffle (13): Made of ABS engineering plastic (30mm in diameter and 5mm in thickness), integrally formed with the threaded rod, covering the right side of the wheel groove (11).

[0082] like Figure 2 As shown, the baffle 13 can block the right end of the wheel groove 11, preventing the roller 10 from detaching from the right end of the wheel groove 11.

[0083] Specifically, the square ring 8 includes a first half-ring 14 and a second half-ring 15, with the two ends of the first half-ring 14 and the second half-ring 15 fixed together.

[0084] By dividing the square ring 8 into a first half-ring 14 and a second half-ring 15, it is convenient to open the internal mounting groove 9 in the early stage, and it is also convenient to install the roller 10 in the mounting groove 9.

[0085] Specifically, the clamping plate 6 includes an arc-shaped plate 16, the inner side of which is an inner arc surface. The inner arc surface of the arc-shaped plate 16 matches the curvature of the outer wall of the biodegradable seedling pot 7. A rubber pad 17 is embedded in the inner arc surface of the arc-shaped plate 16, and the inner side of the rubber pad 17 is arc-shaped.

[0086] The rubber pad 17 increases the clamping friction effect on the outside of the biodegradable seedling pot 7.

[0087] Specifically, insert plates 18 are fixedly installed on both the front and rear ends of the inner side of the clamping plate 6. The top of the insert plate 18 is provided with a sloping surface, and the bottom edge of the biodegradable seedling pot 7 is provided with an annular conical surface 19.

[0088] The inclined plate 18 and the annular conical surface 19 facilitate the insertion of the plate 18 into the bottom of the biodegradable seedling pot 7, providing bottom support.

[0089] Specifically, a fixing plate 20 is fixedly installed on the top of the outer side wall of the movable ring 4.

[0090] The fixed plate 20 is designed to facilitate the operation of the moving ring 4 by the operator's thumb.

[0091] Lightweight design is prioritized: the core structure (crossbars, uprights) is made of 6061-T6 aluminum alloy (density only 1 / 3 that of steel), and the auxiliary structure (fixed rings, moving rings) is made of ABS engineering plastic (density ≤1.1g / cm³). 3 The overall weight is kept below 300g to reduce operator fatigue.

[0092] A balance between strength and durability: The aluminum alloy material has a tensile strength ≥290MPa and can withstand bending forces during clamping; the ABS engineering plastic has an impact resistance ≥20kJ / m. 2 To avoid collision damage; 304 stainless steel parts (threaded rods, shafts) have a rust resistance rating of ≥SUS304, making them suitable for humid field environments.

[0093] Operational safety: The rubber grip (silicone) and the clamp rubber pad (nitrile rubber) are both made of non-toxic and environmentally friendly materials with a high coefficient of friction (≥0.5) to prevent slipping during operation; the 30° angle of the insertion plate ensures smooth insertion and avoids sharp edges from scratching the hands.

[0094] Working principle: When using the device, the user holds the bottom of the rubber handle 2 with four fingers and moves the entire device to the left so that the left clamp 6 fits against the left side of the biodegradable seedling pot 7. Then, the user moves the moving ring 4 to the left with the thumb and clamps it to the right side of the biodegradable seedling pot 7 with the right clamp 6. The user then moves the entire device to the planting soil position.

[0095] It should be noted that the device structure and accompanying drawings of this patent mainly describe the principle of this patent. In terms of the technical aspects of this design principle, the setting of the device's power mechanism, power supply system and control system is not fully described. However, those skilled in the art who understand the principle of the above patent can clearly understand the specifics of its power mechanism, power supply system and control system.

[0096] In the description of this patent, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent 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. At the same time, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0097] Although embodiments of this patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this patent, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biodegradable seedling pot transplanter, characterized in that: The device includes a crossbar (1), on which a rubber handle (2) is fixedly installed. A fixing ring (3) is fixedly installed at the left end of the outer wall of the crossbar (1), and a moving ring (4) is slidably installed at the right end of the outer wall of the crossbar (1). A vertical plate (5) is fixedly installed at the bottom end of the outer wall of both the fixing ring (3) and the moving ring (4). A clamping plate (6) is fixedly installed on the inner side of the vertical plate (5), and a biodegradable seedling pot (7) is provided between the two clamping plates (6). The movable ring (4) includes a square ring (8), the square hole in the middle of the square ring (8) is fitted onto the side wall of the crossbar (1), the upper and lower ends of the inner side wall of the square ring (8) are provided with mounting grooves (9), and a roller (10) is rotatably connected in the mounting groove (9) through a rotating shaft. The upper and lower sides of the side wall of the crossbar (1) are provided with wheel grooves (11), and the edge of the wheel body of the roller (10) is rolled and installed in the roller (10). The inner side wall of the square ring (8) does not contact the side wall of the crossbar (1).

2. The biodegradable seedling pot transplanter according to claim 1, characterized in that: The right end of the wheel groove (11) is open.

3. The biodegradable seedling pot transplanter according to claim 1, characterized in that: The right end of the crossbar (1) is provided with a threaded groove, and a threaded rod (12) is screwed into the threaded groove. The right end of the threaded rod (12) is integrally formed with a baffle (13). The left side of the baffle (13) covers the right side of the wheel groove (11) on both sides.

4. The biodegradable seedling pot transplanter according to claim 1, characterized in that: The square ring (8) includes a first half-ring (14) and a second half-ring (15), with the two ends of the first half-ring (14) and the second half-ring (15) fixed together.

5. The biodegradable seedling pot transplanter according to claim 1, characterized in that: The clamp (6) includes an arc plate (16), the inner side of which is an inner arc surface. The inner arc surface of the arc plate (16) matches the curvature of the outer wall of the biodegradable seedling pot (7). A rubber pad (17) is embedded in the inner arc surface of the arc plate (16), and the inner side of the rubber pad (17) is arc-shaped.

6. The biodegradable seedling pot transplanter according to claim 1, characterized in that: The clamp (6) has insert plates (18) fixedly installed at both the front and rear ends of its inner side. The top of the insert plate (18) is provided with an inclined surface, and the bottom edge of the biodegradable seedling pot (7) is provided with an annular conical surface (19).

7. The biodegradable seedling pot transplanter according to claim 1, characterized in that: A fixing plate (20) is fixedly installed on the top of the outer side wall of the movable ring (4).