Combined teaching demonstration device

Abstract

The utility model discloses a combined teaching demonstration device. The combined teaching demonstration device comprises an annular chassis, a functional module and a pinch plate. A permanent magnet pole array is embedded in the annular chassis; the functional module comprises a plurality of functional elements, and each functional element is composed of an arc-shaped magnetic piece. The magnetic polarity of the permanent magnet pole array is opposite to the magnetic polarity of each arc-shaped magnetic suction sheet; the buckle plate is a transparent elastic piece with an opening in one side, and the buckle plate is configured to be clamped on the annular base plate in shape and size and can move along the annular base plate. According to the utility model, the modular combination process of carrier elements can be dynamically demonstrated, and students are helped to understand the spatial arrangement logic of the elements. The information redundancy is low, and the identification degree of key functional elements such as promoters and multiple cloning sites is high. The teaching aid can also meet the requirement of students for manual operation in class, helps understand the core principle of carrier design, and improves the teaching effect.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment technology, and in particular to a combined teaching demonstration device. Background Technology

[0002] In current molecular biology teaching at medical schools, the construction of gene engineering vectors primarily relies on two-dimensional diagrams such as PowerPoint presentations and textbook illustrations. Existing technologies suffer from the following drawbacks: they cannot dynamically demonstrate the modular assembly process of vector components, making it difficult for students to understand the spatial arrangement logic of these components; commercial vector maps contain redundant information, and key functional elements such as promoters and multiple cloning sites have low identification rates; and interactivity is poor, preventing students from understanding the core principles of vector design through hands-on operation, thus limiting teaching effectiveness. Therefore, developing a new teaching demonstration device to overcome these problems is a direction that requires further research in this field. Utility Model Content

[0003] The purpose of this invention is to provide a modular teaching demonstration device that can dynamically demonstrate the modular assembly process of carrier components, improve the recognizability of key functional components such as the starter, meet the requirements of students to operate by themselves, and thus ensure the quality of teaching to students.

[0004] This utility model discloses a combined teaching demonstration device, characterized in that it includes:

[0005] A ring-shaped chassis, in which a permanent magnet pole array is embedded;

[0006] The functional module includes several functional elements, each of which is composed of an arc-shaped magnetic absorbing sheet; and the magnetic polarity of the permanent magnet pole array is opposite to that of each of the arc-shaped magnetic absorbing sheets.

[0007] The buckle is a transparent elastic element with an opening on one side, and the shape and size of the buckle are configured to engage with the annular base and be movable along the annular base.

[0008] This technical solution employs functional elements to simulate gene elements in the construction of engineering vectors. The magnetic attraction between the ring-shaped chassis and the functional elements simulates the ring-shaped DNA structure. Clamping plates simulate the proteins used to hold the vector elements in place. In this process, the number, position, and type of functional elements magnetically attached to the ring-shaped chassis surface can be freely adjusted according to teaching needs. Therefore, different combinations of functional elements can be used to demonstrate vector structures (such as plasmids and viral vectors). Simultaneously, by adjusting the forward / reverse adhesion of the magnetic plates, the impact of element insertion orientation on function can be visually demonstrated.

[0009] Rapid switching: Supports linear / circular vector configuration conversion, covering multiple types of genetic engineering vectors. This enables a dynamic demonstration process of modular combination of vector elements.

[0010] Preferably, the permanent magnet pole array is configured as a ring electrode array consisting of a plurality of permanent magnet pole pieces arranged sequentially and equidistantly within the ring chassis; the magnetic polarity of the permanent magnet pole pieces and the magnetic polarity of the arc-shaped magnetic absorbing piece are opposite to each other.

[0011] Preferably, the annular chassis is made of lightweight polypropylene rings.

[0012] Preferably, the arc length of the arc-shaped magnetic absorbing sheet is 15°-120°;

[0013] The surface of the arc-shaped magnetic accumulator is screen-printed with standard gene element characters.

[0014] Preferably, the buckle plate has a fluorescent color film embedded in it.

[0015] Preferably, the buckle is made of soft silicone.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] First, this invention can dynamically demonstrate the modular assembly process of carrier components, helping students understand the spatial arrangement logic of the components.

[0018] Secondly, this invention has less information redundancy, and key functional elements such as promoters and multiple cloning sites are highly identifiable.

[0019] Thirdly, this utility model can enable students to operate hands-on in the classroom, help them understand the core principles of carrier design, and improve teaching effectiveness.

[0020] Finally, this invention has a simple structure, is easy to operate, and is easy to prepare and use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the usage state when combining the target carrier model in Example 1.

[0022] Figure 2 This is a schematic diagram of the internal structure of the ring-shaped chassis.

[0023] Figure 3 This is a schematic diagram illustrating the usage states of different induced protein expressions in Example 1.

[0024] Figure 4 This is a schematic diagram of the clamping structure of the annular chassis and functional components in the buckle plate.

[0025] The component names corresponding to the various reference numerals in the figure are as follows:

[0026] 100. Annular chassis; 200. Functional components; 300. Buckle plate; 110. Permanent magnet pole piece; 310. Fluorescent color sheet. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0028] Example 1, please refer to Figure 1-4 :

[0029] A combined teaching demonstration device includes: a ring-shaped chassis 100, functional modules, and a snap-on panel 300.

[0030] A permanent magnet pole array is embedded in the annular chassis 100. Specifically, the permanent magnet pole array is a ring-shaped electrode array, which includes a plurality of permanent magnet pole pieces 110. The plurality of permanent magnet pole pieces 110 are embedded in the annular chassis 100 and are arranged sequentially and equally spaced to form a ring-shaped electrode array. The ring-shaped electrode array is concentrically arranged with the annular chassis 100.

[0031] The functional module includes several functional elements 200, each of which is an arc-shaped magnetic absorbing sheet. The magnetic polarity of each permanent magnet pole in the permanent magnet pole array is opposite to that of each arc-shaped magnetic absorbing sheet; (i.e., when the permanent magnet pole is P-pole, the arc-shaped magnetic absorbing sheet is N-pole; when the permanent magnet pole is P-pole, the arc-shaped magnetic absorbing sheet is N-pole). The arc length of each arc-shaped magnetic absorbing sheet is 15°-120°; the surface of each arc-shaped magnetic absorbing sheet is screen-printed with standard gene element characters (such as promoters, resistance markers, MCS, etc.).

[0032] The snap-on plate 300 is a transparent elastic element with an opening on one side. The shape and size of the snap-on plate 300 are configured to engage with the annular base 100 and be movable along the annular base 100. (In this example, the shape of the snap-on plate 300 resembles a U-shaped structure lying on its side, with its right-side U-shaped opening clamping the outer edge of the annular base 100). A fluorescent color filter 310 is embedded within the snap-on plate 300. The fluorescent color filter 310 in each of the snap-on plates 300 can use different colors to identify different products (e.g., red for antibiotic resistance proteins, green for reporter genes).

[0033] In this example: the annular chassis 100 is constructed from a lightweight polypropylene ring, approximately 20 cm in diameter and 3 cm in width, with a spacing of approximately 2 cm between adjacent permanent magnet poles, providing a uniform magnetic attraction surface. The buckle plate 300 is made of soft silicone. This achieves a lightweight design for easy portability.

[0034] During the teaching process, the teacher can operate the above equipment according to the following steps:

[0035] Teachers select several functional elements 200 and attach them to the annular base 100 at a preset angle to form a target vector model (such as pET-28a plasmid). By using this method, the vector structure (such as plasmid and viral vector) can be demonstrated by combining different functional elements 200. The influence of the insertion direction of the element on the function can also be intuitively shown by adjusting the forward / reverse adsorption of the magnetic swivel. This scheme can also support the conversion of linear / circular vector configurations, covering a variety of genetic engineering vector types.

[0036] During the teaching process, teachers can also operate the above equipment according to the following steps:

[0037] The 300 clip is inserted into the constructed vector model, and the principle and process of simulating different induced protein expression (such as temperature control, IPTG induction, etc.) are demonstrated by closing the promoter region.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A combined teaching demonstration device, characterized in that, include: A ring-shaped chassis, in which a permanent magnet pole array is embedded; The functional module includes several functional elements, each of which is composed of an arc-shaped magnetic absorbing sheet; and the magnetic polarity of the permanent magnet pole array is opposite to that of each of the arc-shaped magnetic absorbing sheets. The buckle is a transparent elastic element with an opening on one side, and the shape and size of the buckle are configured to engage with the annular base and be movable along the annular base; Functional elements are used to simulate gene elements in the construction of engineering vectors; The magnetic attraction between the ring-shaped chassis and the functional components is used to simulate the ring-shaped DNA. The fasteners simulate proteins used to lock in carrier elements.

2. The combined teaching demonstration device according to claim 1, characterized in that, The permanent magnet pole array is configured as a ring electrode array consisting of a number of permanent magnet pole pieces arranged sequentially and equidistantly within the ring chassis; the magnetic polarity of the permanent magnet pole pieces and the magnetic polarity of the arc-shaped magnetic absorbing piece are opposite to each other.

3. The combined teaching demonstration device according to claim 2, characterized in that, The annular chassis is constructed from lightweight polypropylene rings.

4. The combined teaching demonstration device according to claim 3, characterized in that, The arc length of the arc-shaped magnetic absorbing piece is 15°-120°; The surface of the arc-shaped magnetic accumulator is screen-printed with standard gene element characters.

5. The combined teaching demonstration device according to claim 4, characterized in that, The buckle plate has a fluorescent color film embedded in it.

6. The combined teaching demonstration device according to claim 5, characterized in that, The buckle is made of soft silicone blocks.

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