Large seedling grading tool convenient to carry

Abstract

The utility model relates to a portable big seedling grading tool, which comprises a grading tool body, the grading tool body comprises a measuring part and a handheld part which are integrally formed, a plurality of roughness measuring ports with different sizes are formed on the edge of the measuring part, the roughness measuring ports are U-shaped, and the thickness measuring ports are arranged on the handheld part. A rectangular comparison hole penetrating through the surface of the measuring part is formed in the measuring part, and the upper edge and the lower edge of the grading tool body are different in length. By arranging a plurality of thickness measuring ports with different sizes on the edge of the measuring part, whether the stem thickness of the nursery stock which is difficult to measure in the nursery stock grade requirement reaches the standard or not can be determined. By arranging the rectangular comparison holes, the area of the broken bark on the surface of the fruit tree can be measured, in addition, the upper side of the grading tool is used for measuring the length of lateral branches, the lower side is used for measuring the position from a grafting opening to thickness measurement, and the sizes of the upper side and the lower side are set to be standard measurement lengths of the stem length and the effective branch length in the nursery stock industry. During measurement, only direct comparison is needed.

Description

Technical Field

[0001] The utility model relates to the technical field of fruit seedling grading, in particular to a large seedling grading tool that is convenient to carry. Background Art

[0002] In the current market environment, the grading of apple seedlings is often limited to relatively primitive methods, such as simply relying on visual observation or using tools such as calipers and straight teeth to measure length and height. Although this grading method of obtaining simple parameters is fast, in the development trend of modern agriculture, especially in the process of building high-standard orchards, it is obviously unable to meet the strict requirements for the quality and characteristics of seedlings. The construction of modern high-standard orchards not only pursues the quantity of seedlings, but also values the quality, growth potential and adaptability of seedlings. Therefore, it is particularly important to conduct fine grading of apple seedlings.

[0003] For this reason, we have designed a tool for grading seedlings with refined and multi-parameter measurement. Summary of the Utility Model

[0004] In order to overcome the shortcomings in the above background art, the technical problem of the utility model is: to provide a tool for grading seedlings with refined and multi-parameter measurement.

[0005] The technical implementation plan of the utility model is: a large seedling grading tool that is convenient to carry, including a grading tool body. The grading tool body includes a measurement part and a handheld part that are integrally formed. Multiple thickness measurement ports with different sizes are formed at the edge of the measurement part. The thickness measurement ports are U-shaped. A rectangular comparison hole penetrating its surface is provided on the measurement part. The upper side and the lower side of the grading tool body are set to different lengths.

[0006] In addition, particularly preferably, the length of the upper side of the grading tool body is 15 cm, and the length of the lower side is 10 cm.

[0007] In addition, particularly preferably, the cross-sectional area of the comparison hole is 1 square centimeter.

[0008] In addition, particularly preferably, there are 5 thickness measurement ports, and their diameters are 0.6 cm, 0.7 cm, 0.8 cm, 1.0 cm and 1.4 cm respectively.

[0009] In addition, particularly preferably, the edges of the thickness measurement ports are chamfered and polished to avoid breaking the bark of the seedlings during the measurement process.

[0010] Compared with the prior art, the utility model has the following advantages: by arranging a plurality of thickness measurement ports with different sizes at the edge of the measurement part, the utility model can determine whether the stem thickness of seedlings, which is difficult to measure in the requirements of seedling grades, meets the standards. By arranging a rectangular comparison hole, the area of the skin break on the surface of fruit trees can be measured. In addition, the upper side of the grading tool is used to measure the length of lateral branches, and the lower side is used to measure the position from the grafting joint to the measured thickness. The sizes of the upper side and the lower side are both set to the standard measurement lengths of the stem length and the effective branch length in the seedling industry. During measurement, only direct comparison is needed. This tool is more convenient, has lower cost and is easy to use in measuring and grading the stem thickness of seedlings compared with traditional vernier calipers, which is beneficial to improving labor efficiency. Description of the Drawings

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0012] The marks of each component in the drawings are as follows: 1. Grading tool body, 11. Measurement part, 12. Holding part, 2. Thickness measurement port, 3. Comparison hole. Detailed Embodiment

[0013] It should be noted first that in different described embodiments, the same components are provided with the same reference numerals or the same component names. Among them, the disclosed content included in the whole specification can be transferred meaningfully to the same components with the same reference numerals or the same component names. The position descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and shown drawings and are transferred meaningfully to the new positions when the positions change.

[0014] Figure 1 The structure diagram of a portable large-seedling grading tool is shown, which includes a grading tool body 1. The grading tool body 1 is made of acrylic board material. Its overall length is determined according to the thickness requirements of seedling grades, and its thickness generally does not exceed 5 mm. The grading tool body 1 includes an integrally formed measurement part 11 and a holding part 12. A plurality of thickness measurement ports 2 with different diameters are formed at the edge of the measurement part 11. The thickness measurement ports 2 are U-shaped, and the number of the thickness measurement ports 2 is at least set to 5. According to the division of seedling grades, the diameters of the thickness measurement ports 2 are respectively set to 0.6 cm, 0.7 cm, 0.8 cm, 1.0 cm and 1.4 cm, and the corresponding seedling grades from inferior to superior respectively correspond to B, A, 2A, 3A and 4A. In addition, a rectangular comparison hole 3 penetrating its surface is also provided on the measurement part 11. The cross-sectional area of the comparison hole 3 is set to 1 square centimeter. The rectangular comparison hole 3 is mainly used to measure the mechanical damage of the seedling epidermis. When its damage area does not exceed 1.00 square centimeter, it means it is qualified.

[0015] The upper and lower edges of the grading tool body 1 are set to different lengths for measuring the length of seedlings. Preferably, the upper edge length is 15 cm and the lower edge length is 10 cm. According to the requirements of the seedling industry for measuring the stem diameter of seedlings, the measurement point of the stem diameter of seedlings is generally 10 cm above the grafting interface. Therefore, through the lower edge, direct comparison and measurement can be carried out to determine the stem diameter measurement point. When performing branch measurement, the screening standard for high-quality seedlings is generally that the lowest branch position is in the range of 70 cm - 90 cm, and the branch length ≥ 15 cm. By directly comparing the branch length with the upper edge of the grading tool body 1, when the branch length is greater than or equal to the upper edge of the grading tool body 1, the seedling grade can be determined.

[0016] It should also be noted that the edge of the thickness measurement port 2 is chamfered and polished to avoid damaging the bark of the seedlings during the measurement process.

[0017] The grading tool of the present utility model is small in size, light in weight and convenient to carry. It can measure the stem diameter, branch length, epidermal damage area of seedlings, and can also measure the parameters of the rootstock length. When in use, only this tool needs to be carried to realize the measurement of multiple parameters.

[0018] The above embodiments only represent the preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the patent of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several variations, improvements and substitutions can be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. A portable large-seedling grading tool, characterized in that It includes a grading tool body (1), and the grading tool body (1) includes an integrally formed measuring part (11) and a handheld part (12). A plurality of coarseness measuring ports (2) with different sizes are formed at the edge of the measuring part (11). The coarseness measuring ports (2) are U-shaped. A rectangular comparison hole (3) penetrating its surface is provided on the measuring part (11). The upper side and the lower side of the grading tool body (1) are set to different lengths.

2. The portable large-seedling grading tool according to claim 1, characterized in that, The length of the upper side of the grading tool body (1) is 15 cm, and the length of the lower side is 10 cm.

3. The portable large-seedling grading tool according to claim 1, wherein The cross-sectional area of the comparison hole (3) is 1 square centimeter.

4. The portable large-seedling grading tool according to claim 1, characterized in that, There are 5 coarseness measuring ports (2), and their diameters are 0.6 cm, 0.7 cm, 0.8 cm, 1.0 cm, and 1.4 cm respectively.

5. The portable large-seedling grading tool according to any one of claims 1-4, characterized in that, The edges of the coarseness measuring ports (2) are chamfered and polished.

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