Polyurethane sponge for planting

Abstract

The utility model discloses a polyurethane sponge for planting, which comprises a polyurethane sponge base body, a plurality of through holes are uniformly distributed on the polyurethane sponge base body, sleeves are arranged in the through holes, check rings contacted with the bottom surface of the polyurethane sponge base body are arranged at the bottoms of the sleeves, and pressing rings contacted with the top surface of the polyurethane sponge base body are arranged at the upper parts of the sleeves. A sponge cushion block is arranged on the lower portion in the sleeve, a through groove is formed in the axis of the sponge cushion block, a seedling raising plate is arranged on the portion, corresponding to the upper portion of the sponge cushion block, in the sleeve, and small holes are evenly distributed in the seedling raising plate. According to the utility model, the overall bearing capacity is improved, the water absorption rate of seeds is ensured, plants are protected and prevented from lodging to a certain extent, the plant spacing is ensured, and the use effect is remarkable.

Description

Technical Field

[0001] The utility model relates to the technical field of planting sponges, in particular to a polyurethane sponge for planting. Background Technique

[0002] Soilless cultivation is a modern seedling raising technology that uses lightweight materials as the seedling raising substrate to fix plants, allows the plant roots to directly contact the nutrient solution, and uses mechanized precise sowing to form seedlings at one time. The planting sponge is a new type of soilless cultivation substrate that has emerged in recent years and is made by mixing and foaming a polymer foaming material with a certain proportion of organic matter or inorganic matter. The planting sponge is widely used in the field of soilless cultivation because of its advantages such as loose air permeability, good drainage performance, cleanliness, non-toxic and odorless, and light weight.

[0003] The existing planting sponge is to stuff the seeds into the seams on the sponge surface and then let the seeds germinate. Since the seeds are stuffed into the sponge seams, the light exposure rate of the seeds will be insufficient, resulting in insufficient seed germination rate. The manual operation is inconvenient, the production cost is high, and it is not conducive to the large-scale promotion of the planting sponge technology. In addition, the seeds are stuffed into the seams on the sponge surface and grow in the seams on the sponge surface, which is not conducive to the downward growth of the roots. Moreover, as the sponge grows, it lacks protection for the plant roots and is prone to lodging problems. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, provide a polyurethane sponge for planting, improve the overall load-bearing capacity, ensure the water absorption rate of the seeds, have a certain protective and anti-lodging effect on the plants, ensure the plant spacing, and have a remarkable use effect, and can effectively solve the problems in the background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A polyurethane sponge for planting, including a polyurethane sponge matrix, the polyurethane sponge matrix is evenly distributed with a plurality of through holes, a sleeve is arranged in the through hole, a retaining ring in contact with the bottom surface of the polyurethane sponge matrix is arranged at the bottom of the sleeve, a pressing ring in contact with the top surface of the polyurethane sponge matrix is arranged at the upper part of the sleeve, a sponge cushion block is arranged below the inside of the sleeve, a through groove is arranged on the axis of the sponge cushion block, and a seedling raising plate is arranged above the sponge cushion block inside the sleeve, and the seedling raising plate is evenly distributed with small holes.

[0006] Preferably, the outer diameter of the retaining ring is larger than the diameter of the sleeve, the inner diameter of the retaining ring is smaller than the diameter of the sleeve, and the sponge cushion block is in contact with the part of the retaining ring located in the sleeve.

[0007] Preferably, an arc-shaped sunken hole for placing seeds is arranged at the center of the upper part of the seedling raising plate.

[0008] Preferably, the through groove is in an inverted conical shape with a small upper end and a large lower end, and the arc-shaped sunken hole is coaxial with the through groove.

[0009] Preferably, the pressing ring is threadedly connected to the outer wall of the sleeve.

[0010] Preferably, the polyurethane sponge matrix is made by polyurethane foaming, and highly water-absorbent resin fibers are uniformly dispersed in the polyurethane sponge matrix.

[0011] Preferably, water-permeable holes are uniformly distributed on the outer wall of the sleeve.

[0012] Preferably, the sleeve is made of hard plastic, and the seedling plate is made of polyurethane sponge.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing the sleeve, the pressing ring and the retaining ring, the overall load-bearing capacity is improved. That is, the sleeve can bear the heavy objects above the polyurethane sponge matrix, and the seedling plate is used for placing seeds. The seedling plate is provided with small holes, and the sponge cushion block is provided with through grooves. After the seeds germinate, the roots grow downward through the small holes and the through grooves without obstruction, ensuring the water absorption rate of the seeds. The plants grow in the sleeve, having a certain protection and anti-lodging effect. In addition, the seeds are placed in the arc-shaped sunken holes of the seedling plate, which is convenient for operation. The plants grow in the sleeve. Since the sleeves are uniformly arranged, it is ensured that the plants can grow at a relatively uniform interval, ensuring the plant spacing, and the use effect is remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic partial structural diagram of the present utility model;

[0016] Figure 3 is Figure 2 a cross-sectional view of;

[0017] Figure 4 is a schematic diagram of the polyurethane sponge matrix of the present utility model.

[0018] In the figure: 1 polyurethane sponge matrix, 1.1 through hole, 1.2 highly water-absorbent resin fiber, 2 sleeve, 2.1 water-permeable hole, 3 pressing ring, 4 retaining ring, 5 seedling plate, 5.1 arc-shaped sunken hole, 5.2 small hole, 6 sponge cushion block, 6.1 through groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model can be explained in detail through the following embodiments. The purpose of disclosing the present utility model is to protect all technical improvements within the scope of the present utility model. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or position relationship, they are only corresponding to the drawings of the present application for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation.

[0020] Please refer to Figures 1-4 , the present utility model provides a technical solution: a polyurethane sponge for planting, including a polyurethane sponge matrix 1, the polyurethane sponge matrix 1 is evenly distributed with a plurality of through holes 1.1, a sleeve 2 is arranged in the through hole 1.1, a retaining ring 4 in contact with the bottom surface of the polyurethane sponge matrix 1 is arranged at the bottom of the sleeve 2, a pressing ring 3 in contact with the top surface of the polyurethane sponge matrix 1 is arranged at the upper part of the sleeve 2, the pressing ring 3 is threadedly connected to the outer wall of the sleeve 2, a sponge cushion block 6 is arranged below the inner part of the sleeve 2, a through groove 6.1 is arranged on the axis of the sponge cushion block 6, a seedling raising plate 5 is arranged corresponding to the upper part of the sponge cushion block 6 inside the sleeve 2, and the seedling raising plate 5 is evenly distributed with small holes 5.2;

[0021] By setting the sleeve 2, the pressing ring 3 and the retaining ring 4 to improve the overall load-bearing capacity, the sleeve 2 can bear the heavy objects on the upper part of the polyurethane sponge matrix 1, that is, it can be stacked during use without compressing the polyurethane sponge matrix 1; Seeds are placed on the seedling raising plate 5 to grow, and after the seeds germinate, the roots grow downward through the small holes 5.2 on the seedling raising plate 5 and the through groove 6.1 of the sponge cushion block 6, ensuring the water absorption rate of the seeds;

[0022] Further, the outer diameter of the retaining ring 4 is larger than the diameter of the sleeve 2, the inner diameter of the retaining ring 4 is smaller than the diameter of the sleeve 2, and the sponge cushion block 6 is in contact with the part of the sleeve 2 where the retaining ring 4 is located; The retaining ring 4 has two functions. The outer part of the retaining ring 4 is used to cooperate with the polyurethane sponge matrix 1, and the inner part of the retaining ring 4 is used to support the sponge cushion block 6;

[0023] Further, an arc-shaped sink 5.1 for placing seeds is arranged at the center of the upper part of the seedling raising plate 5 to locate the position of seed placement, which is convenient for operation, and the seeds grow in the arc-shaped sink 5.1;

[0024] Further, the through groove 6.1 is in an inverted cone shape with a small upper end and a large lower end, and the arc-shaped sink 5.1 and the through groove 6.1 are coaxial. The lower part of the root system is large, so it is set in an inverted cone shape, and the upper small hole of the through groove 6.1 is reduced in diameter to facilitate fixing the plant roots;

[0025] Further, the polyurethane sponge matrix 1 is made of polyurethane foam, and the polyurethane sponge matrix 1 is evenly dispersed with superabsorbent resin fibers 1.2. The superabsorbent resin fibers 1.2 are added to the foaming solution, and after stirring evenly, box-type foaming is adopted. By increasing the superabsorbent resin fibers 1.2, the structural strength and water absorption of the polyurethane sponge matrix 1 are improved;

[0026] In addition, the outer wall of the sleeve 2 is evenly distributed with water permeable holes 2.1 to increase water absorption; The sleeve 2 is made of hard plastic, has a certain strength and low cost, and the seedling raising plate 5 is made of polyurethane sponge.

[0027] The parts not detailed in this utility model are prior art. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, aiming to encompass all changes falling within the meaning and scope of equivalent elements in the content of this utility model.

Claims

1. A polyurethane sponge for planting, comprising a polyurethane sponge substrate (1), characterized in that: The polyurethane sponge matrix (1) is evenly distributed with a plurality of through holes (1.1), a sleeve (2) is arranged in the through hole (1.1), a retaining ring (4) in contact with the bottom surface of the polyurethane sponge matrix (1) is arranged at the bottom of the sleeve (2), a pressing ring (3) in contact with the top surface of the polyurethane sponge matrix (1) is arranged at the top of the sleeve (2), a sponge pad (6) is arranged at the bottom of the sleeve (2), a through groove (6.1) is arranged at the axis of the sponge pad (6), and a seedling raising plate (5) is arranged at the top of the sleeve (2) corresponding to the sponge pad (6), and the seedling raising plate (5) is evenly distributed with small holes (5.2).

2. The polyurethane sponge for planting according to claim 1, characterized in that: The outer diameter of the retaining ring (4) is greater than the diameter of the sleeve (2), the inner diameter of the retaining ring (4) is smaller than the diameter of the sleeve (2), and the sponge pad (6) is in contact with the portion of the retaining ring (4) located on the sleeve (2).

3. The polyurethane sponge for planting according to claim 1, characterized in that: An arc-shaped countersunk hole (5.1) for placing seeds is provided at the center of the upper part of the seedling raising plate (5).

4. The polyurethane sponge for planting according to claim 3, characterized in that: The through groove (6.1) is in the shape of an inverted cone with a small upper end and a large lower end, and the arc-shaped countersunk hole (5.1) is coaxial with the through groove (6.1).

5. The polyurethane sponge for planting according to claim 1, characterized in that: The pressing ring (3) is threadedly connected to the outer wall of the sleeve (2).

6. The polyurethane sponge for planting according to claim 1, characterized in that: The polyurethane sponge matrix (1) is made of polyurethane foam, and highly absorbent resin fibers (1.2) are evenly dispersed in the polyurethane sponge matrix (1).

7. The polyurethane sponge for planting according to claim 1, characterized in that: The outer wall of the sleeve (2) is evenly distributed with water-permeable holes (2.1).

8. The polyurethane sponge for planting according to claim 1, characterized in that: The sleeve (2) is made of hard plastic, and the seedling raising plate (5) is made of polyurethane sponge.

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