Magnetic stirrer for seed hull breaking

Abstract

The utility model discloses a magnetic stirrer for seed skin breaking, which relates to the technical field of test instruments and comprises a blade seat for mounting blades, the periphery of the blade seat is provided with a plurality of tips which are radially and uniformly distributed, the blades are mounted in the tips, and cutting edges of the blades extend out of the edges of the tips. The blade is detachably and fixedly connected with the tip; and a magnet is arranged in the center of the blade seat. Through the radial blade layout and the design of the double-sided blades, a multi-directional peel breaking working surface is formed, the treatment uniformity is improved, the detachable connection design supports blade angle adjustment, cutting edge extension length and abrasion replacement, and the requirements of different seeds are met; the standardized size is adaptive to a conventional magnetic stirrer, and special equipment transformation is not needed.

Description

Technical Field

[0001] This utility model relates to the field of experimental instruments, and in particular to a magnetic stir bar for breaking seed husks. Background Technology

[0002] In seed germination experiments and gene research, seed breaking is often necessary to improve water absorption and germination efficiency. Traditional breaking methods mostly involve mechanical crushing or chemical reagent penetration, which suffer from problems such as damage to the embryo, complex operation, low processing efficiency, and lack of control. While existing magnetic stirrers can automate the process, conventional stir bar only has a mixing function and cannot meet the specific needs of seed breaking. Addressing the problems of poor breaking effect, complex operation, and insufficient equipment compatibility in existing technologies, some improvement schemes attempt to add raised structures to the surface of the stir bar, but these suffer from drawbacks such as low breaking efficiency, easy blade detachment, and insufficient magnetic stability. Therefore, there is an urgent need to develop a magnetic stir bar that integrates breaking function and works in conjunction with a magnetic stirrer. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a magnetic stir bar for seed breaking that can effectively improve seed breaking efficiency, is simple to operate and safe to use.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a magnetic stirrer for breaking seed skins, comprising a blade holder for mounting blades, wherein the outer periphery of the blade holder has a plurality of radially evenly distributed tips, the blades are mounted inside the tips, and the blade edges extend from the edges of the tips, and the blades are detachably and fixedly connected to the tips; a magnet for use with a magnetic stirrer is provided in the center of the blade holder.

[0005] Furthermore, the blade holder is a two-piece structure that is fixed symmetrically at the top and bottom.

[0006] Furthermore, the number of tips and blades is equal, and they are all triangular in shape.

[0007] Furthermore, the length from any tip of the blade holder to the center is 1.5-3cm, and the thickness is 0.5-1.0cm.

[0008] Furthermore, the blade holder is made of engineering plastic.

[0009] Furthermore, the blade is a double-edged blade made of stainless steel.

[0010] Furthermore, the blade and the tip are detachably fixed together by screws or bolts.

[0011] Furthermore, the magnet is in the shape of a rectangle with a side length of less than 3cm.

[0012] Furthermore, the magnet is circular in shape with a diameter of less than 3 cm.

[0013] Based on the above technical solution, the beneficial effects of this utility model are:

[0014] 1. The dual-blade holder structure ensures stable magnet encapsulation and prevents magnet detachment; the radial blade layout and double-sided blade design create a multi-directional peeling working surface, improving processing uniformity; the detachable connection design supports blade angle adjustment, blade extension length adjustment, and wear replacement, adapting to the needs of different seeds.

[0015] 2. The engineering plastic body reduces the overall weight of the stir bar, enhances structural strength and corrosion resistance, and reduces energy loss during the stirring process. The double-sided stainless steel blades increase wear resistance. The standardized size is compatible with conventional magnetic stirrers, eliminating the need for special equipment modifications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 Schematic diagram of a magnet embedded in the blade holder;

[0018] Figure 3 A schematic diagram showing the blade setup.

[0019] The markings in the diagram are: 1. Blade holder, 11. Tip, 2. Blade, 3. Magnet, 4. Locking element, 41. First threaded hole, 42. Second threaded hole. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Furthermore, it should be noted that, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "front end," "rear end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Example 1

[0024] like Figure 1-3 As shown, a magnetic stirrer for seed breaking includes a blade holder 1 for mounting blades 2. The blade holder 1 is a two-piece structure with symmetrical upper and lower parts. The outer periphery of the blade holder 1 has multiple radially distributed tips 11. The length from any tip 11 to the center of the blade holder 1 is 1.5-3 cm, and the thickness is 0.5-1.0 cm. The material is engineering plastic, balancing structural strength and corrosion resistance while reducing energy loss during the stirring process. Each tip 11 of the blade holder is provided with a locking element 4 for locking the blades, and each tip 11 is also provided with multiple first threaded holes 41 equidistantly spaced to mate with the locking element 4.

[0025] The blade 2 is installed inside the tip 11 of the blade holder, and the cutting edge of the blade 2 protrudes from the tip 11 by 0.1-0.5 cm to form a piercing working surface. The blade 2 is a double-sided blade made of high-quality steel to ensure durable wear resistance. The number of tips 11 and blades 2 is equal, and both are triangular. The blade 2 has a second threaded hole 42 corresponding to the first threaded hole 41, which mates with the locking member 4. The locking member 4 is a bolt or screw, which allows for a detachable connection between the blade and the blade holder, and the threaded hole also serves a positioning function.

[0026] The blade holder 1 has a magnet 3 in the center for use with a magnetic stirrer. The magnet 3 is rectangular with a side length of less than 3cm or circular with a diameter of less than 3cm, and forms an effective magnetic coupling with the rotating magnetic field of the magnetic stirrer.

[0027] The dual-blade holder structure ensures stable magnet encapsulation and prevents magnet detachment; the radial blade layout and double-sided blade design create a multi-directional peeling working surface, improving processing uniformity; the detachable locking mechanism and screw connection design supports blade angle adjustment and wear replacement, adapting to the needs of different seeds; the standardized size is compatible with conventional magnetic stirrers, requiring no special equipment modification.

[0028] Taking Cymbidium faberi seeds as an example, this embodiment uses a cross-shaped magnetic stir bar with a blade holder 1 having four tips 11 and four blades 2 installed.

[0029] Cymbidium seeds require a moist environment and infection by special germination fungi to provide nutrients; they are difficult to germinate when sown under normal tissue culture conditions.

[0030] The seeds of Cymbidium faberi were cut with scissors under sterile conditions as a control group.

[0031] Pour the Cymbidium seeds into a beaker and place the beaker on a magnetic stirrer. Place four blades in a cross shape on the magnetic stir bar in the beaker and stir under sterile conditions to break the skin.

[0032] After stirring, it was found that the germination rate of Cymbidium seeds treated with a magnetic stir bar to break the seed coat was more than 70% higher than that of the control group.

[0033] Example 2

[0034] Unlike Embodiment 1, this embodiment uses a magnetic stirrer equipped with three blades 2. The blades 2 have a waist hole corresponding to the first threaded hole 41, which cooperates with the locking member 4, allowing for a detachable connection between the blades 2 and the blade holder 1, while also controlling the extension length of the blade.

[0035] The seed coat of canna lily is hard and contains aromatic oils, making it difficult to absorb water. Under normal tissue culture conditions, it grows slowly and requires the outer seed coat to be scratched with a knife to allow water to directly contact the cotyledons and promote germination.

[0036] The seed coat of canna lily seeds was cut open with a knife under sterile conditions to serve as a control group.

[0037] Pour the canna seeds into a beaker, place the beaker on a magnetic stirrer, put a magnetic stir bar with three blades into the beaker, and stir to break the skin under sterile conditions.

[0038] After stirring, it was found that the germination rate of canna seeds treated with magnetic stirrer to break the skin was basically the same as that of the control group, but the treatment time was increased by more than 60%.

[0039] Example 3

[0040] Unlike Example 1, this example uses a magnetic stir bar equipped with six blades 2.

[0041] Spinach seeds have a hard outer shell and poor air permeability and water absorption capacity. They need to be peeled or soaked in warm water (such as soaking in 30℃ warm water for 24 hours) to germinate, which facilitates subsequent tissue culture.

[0042] Pour the spinach seeds into a beaker, place the beaker on a magnetic stirrer, put a six-blade magnetic stir bar into the beaker, and stir to break the skin under sterile conditions.

[0043] With the same germination rate, the treatment time with a magnetic stir bar is significantly shorter than that with warm water soaking.

[0044] This invention is also applicable to other seeds that require skin breaking treatment to germinate effectively or undergo other further treatments.

[0045] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A magnetic stirrer for breaking seed coats, characterized in that: The blade holder (1) includes a blade holder (1) for mounting the blade (2). The outer periphery of the blade holder (1) is a plurality of radially evenly distributed tips (11). The blade (2) is mounted in the tips (11), and the cutting edge of the blade (2) extends from the edge of the tip (11). The blade (2) and the tip (11) are detachably and fixedly connected. A magnet (3) for use with a magnetic stirrer is provided in the center of the blade holder (1).

2. The magnetic stir bar for seed breaking according to claim 1, characterized in that: The blade holder (1) is a two-piece structure that is fixed symmetrically at the top and bottom.

3. A magnetic stirrer for seed breaking according to claim 1, characterized in that: The number of tips (11) and blades (2) are equal, and both are triangular.

4. A magnetic stirrer for seed breaking according to claim 1, characterized in that: The length from any tip (11) of the blade holder (1) to the center is 1.5-3cm, and the thickness is 0.5-1.0cm.

5. A magnetic stirrer for seed breaking according to claim 1, characterized in that: The blade holder (1) is made of engineering plastic.

6. A magnetic stirrer for seed breaking according to claim 1, characterized in that: The blade (2) is a double-sided blade made of stainless steel.

7. A magnetic stirrer for seed breaking according to claim 1, characterized in that: The blade (2) and the tip (11) are detachably fixed together by screws or bolts.

8. A magnetic stir bar for seed breaking according to claim 1, characterized in that: The magnet (3) is a rectangle with a side length of less than 3cm.

9. A magnetic stirrer for seed breaking according to claim 1, characterized in that: The magnet (3) is a circle with a diameter of less than 3 cm.

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