CN209879901U

CN209879901U - Model teaching aid

Info

Publication number: CN209879901U
Application number: CN201822102014.0U
Authority: CN
Inventors: 刘慧丽
Original assignee: Zhangzhou Health Vocational College
Current assignee: Zhangzhou Health Vocational College
Priority date: 2018-12-14
Filing date: 2018-12-14
Publication date: 2019-12-31
Anticipated expiration: 2028-12-14

Abstract

The utility model discloses a model teaching aid, which comprises a magnetic module and a fixing piece, wherein the magnetic module comprises a panel, a magnetic sheet and a connecting block; the connecting block is connected with the panel and the magnetic sheet; the inner longitudinal direction of the magnetic module is provided with a through mandrel; the widest diameter of the cross section of the connecting block is smaller than the widest diameter of the panel; the fixing piece comprises a needle bar and a sucker, and the sucker is connected to one end of the needle bar; the rod length of the needle rod is longer than the axial length of the through mandrel; the needle shaft is insertable into and penetrates the through-mandrel. The model teaching aid can be suitable for various different blackboards or display boards, can be used on the blackboards or display boards with magnetic materials, and can also be used on common blackboards, whiteboards and wood boards. The requirements on the teaching environment or the teaching blackboard are reduced, and the method is suitable for various experimental teaching demonstration, such as enzyme-linked immunosorbent assay.

Description

Model teaching aid

Technical Field

The utility model relates to a teaching aid, especially model teaching aid.

Background

The enzyme-linked immunosorbent assay (ELISA) is characterized in that antigen or antibody with certain concentration is fixed on the surface of a polystyrene microporous plate by a physical adsorption method, a sample to be detected is added, and the existence or the quantity of the detected antigen or antibody is indirectly reflected by the color depth developed by an enzyme label. Generally, in a teaching class, a teacher can draw a schematic diagram on a blackboard for explanation, or please go to a student to draw a diagram to know the mastering condition, the sizes of the diagrams drawn by different people cannot be unified, the diagrams are not attractive in appearance, and the diagrams are inconvenient to modify due to errors, the efficiency of the method is low, and the diagram drawing takes a lot of class time. Although some magnetic model teaching aids for teaching exist in the prior art, the magnetic model teaching aids can only be used on a specific blackboard or display board, and cannot be used on a common blackboard or display board without a magnetic absorption material.

SUMMERY OF THE UTILITY MODEL

For solving the defect among the prior art, the utility model provides a model teaching aid, this model teaching aid can be applicable to blackboard or show board of multiple difference, not only can use at blackboard or show board that has the magnetism material of inhaling, and ordinary blackboard, blank, plank also can use moreover. The requirements on the teaching environment or the teaching blackboard are reduced, and the method is suitable for various experimental teaching demonstration, such as enzyme-linked immunosorbent assay.

Specifically, the utility model provides a model teaching aid, which comprises a magnetic module and a fixing piece, and is characterized in that the magnetic module comprises a panel 1, a magnetic sheet 2 and a connecting block 3; wherein, the connecting block 3 is connected with the panel 1 and the magnetic sheet 2; the inner longitudinal direction of the magnetic module is provided with a through mandrel 4; the widest diameter of the cross section of the connecting block 3 is smaller than the widest diameter of the panel 1; the fixing piece comprises a needle bar 6 and a sucker 5, and the sucker 5 is connected to one end of the needle bar 6; the rod length of the needle rod 6 is longer than the axial length of the through mandrel 4; the needle shaft 6 can be inserted into and penetrate the through-mandrel 4.

The utility model can be held to reduce the possibility of falling on the ground during the operation; the magnetic sheet enables the magnetic module to play a main demonstration role in a model teaching aid provided with a magnetic-absorbing material, the magnetic module is divided into three parts, the widest diameter of the cross section of the connecting block is smaller than the widest diameter of the panel, and the design is favorable for stable close attachment on a blackboard for demonstration operation; the magnetic module is internally and longitudinally provided with a through shaft which is matched with the fixing piece, one end of the fixing piece is a sucker, the other end of the fixing piece is a needle point, when the blackboard does not have a common blackboard or white board which is made of magnetic materials, the sucker of the fixing piece can be sucked on the common blackboard or white board, the magnetic module is hung on the fixing piece through the through shaft as shown in figure 2B, and when the blackboard is a simple and crude wood board, the magnetic module can be fixed on the wood board through the through shaft by the needle point of the fixing piece as shown in figure 2A. The magnetic attraction material is iron, magnetism and the like which are attracted with the magnetic sheet.

In some embodiments, the longitudinal section of the panel 1 is trapezoidal, semicircular or crescent-shaped.

The panel is designed into a shape with thin edges and thick middle parts, such as a trapezoid shape, a semicircular shape or a crescent shape, when an operator holds the panel, the edge contact of a hand and the panel is line contact, when the panel is held by the same strength, the pressure is higher, and the panel is more favorable for the holding of the operator and is not easy to fall off.

In other embodiments, the connecting block 3 is connected to the lower bottom surface of the trapezoid; or the connecting block 3 is connected to the semi-circular chord surface; or the connecting block 3 is connected with the inner arc surface of the crescent.

Because the action directions of the forefinger and the thumb when the fingers of a user hold the finger, the lower bottom surface of the trapezoid, the semicircular chord surface and the crescent inner arc surface are connected with the connecting block in a super mode, the outer edges of the shapes are hung on the finger like a small hook, and the finger can be held by an operator more stably.

In some embodiments, the model teaching aid further comprises a storage box.

In some embodiments, the model teaching aid further comprises a storage box, the storage box comprises a drawer, a storage box is arranged in the drawer, the storage box is a hollow box, a strip-shaped hollow 7 is arranged on the upper panel of the box, and the strip-shaped hollow 7 has a width which enables the connecting block 3 to smoothly pass through but prevents the panel 1 from passing through; one end of the strip-shaped hollow part 7 is provided with an inlet hollow part 8; the inlet hollow 8 can enable the connecting block 3 and the magnetic sheet 2 to smoothly pass through; the inner hollow height of the storage box is not less than the height of the magnetic module.

The arrangement box with the strip-shaped hollow parts is designed, so that the magnetic modules can be orderly arranged and conveniently taken.

In other embodiments, the strip-shaped hollow parts 7 are multiple, and the number of the inlet hollow parts 8 is 1 or more; when the inlet hollows 8 are 1, the strip-shaped hollows 7 are communicated with the inlet hollows 8.

In other embodiments, the drawer and the organizer are integral or split.

In some embodiments, the model teaching aid further comprises a storage box, the storage box comprises a drawer, and the drawer is provided with a partition board which divides the drawer into a plurality of storage grids.

In some embodiments, the panel 1 has pictures on its upper surface, including solid phase antibody pictures, enzyme labeled antibody pictures, substrate pictures, antigen pictures, arrow pictures, and specimen pictures.

In other embodiments, the model teaching aid is used for teaching the principle of enzyme-linked immunosorbent assay.

Drawings

Fig. 1 shows an example of the magnetic module of the present invention, wherein a is an example of the longitudinal section of the panel being trapezoidal, B is an example of the longitudinal section of the panel being crescent, and C is an example of the longitudinal section of the panel being semicircular.

Fig. 2 shows an example of the magnetic module of the present invention used in cooperation with a fixing member, where a is a cooperation for fixing on a board, and B is a cooperation for fixing on a common blackboard or a white board.

Fig. 3 shows an example of the fixing member of the present invention.

Fig. 4 shows an example of the storage box of the present invention.

Fig. 5 shows an example of the storage box of the present invention, wherein a is a top view and B is a perspective view.

Fig. 6 shows an example of a drawer having a plurality of storage compartments according to the present invention.

FIG. 7 shows an example of a top view of the magnetic module for ELISA according to the present invention, where a is an enzyme-labeled antibody, b is an antigen, c is a solid-phase antibody, d is an arrow, e is a substrate, and f is an antibody.

Description of reference numerals:

1-a panel; 2-magnetic sheet; 3, connecting blocks; 4-through mandrel; 5, a sucker; 6-needle bar; 7-strip-shaped hollowing; 8-hollow inlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

A teaching aid of an ELISA principle teaching model comprises a magnetic module and a fixing part, wherein the magnetic module comprises modules required by the experiment, such as a solid-phase antibody magnetic module, an enzyme-labeled antibody magnetic module, a substrate magnetic module, an antigen magnetic module, an arrow magnetic module, a specimen magnetic module and the like.

The magnetic module comprises a panel 1, a magnetic sheet 2 and a connecting block 3; wherein, the connecting block 3 is connected with the panel 1 and the magnetic sheet 2; the inner longitudinal direction of the magnetic module is provided with a through mandrel 4; the widest diameter of the cross section of the connecting block 3 is smaller than the widest diameter of the panel 1; the fixing piece comprises a needle bar 6 and a sucker 5, and the sucker 5 is connected to one end of the needle bar 6; the rod length of the needle rod 6 is longer than the axial length of the through mandrel 4; the needle shaft 6 can be inserted into and penetrate the through-mandrel 4. The longitudinal section of the panel 1 is trapezoidal, semicircular or crescent. The connecting block 3 is connected to the lower bottom surface of the trapezoid; or the connecting block 3 is connected to the semi-circular chord surface; or the connecting block 3 is connected with the crescent inner arc surface

The model teaching aid further comprises a storage box, the storage box comprises a drawer, a placing box is arranged in the drawer and is a hollow box, a strip-shaped hollow 7 is arranged on the upper panel of the box, and the strip-shaped hollow 7 is wide so that the connecting block 3 can pass through smoothly and the panel 1 cannot pass through; one end of the strip-shaped hollow part 7 is provided with an inlet hollow part 8; the inlet hollow 8 can enable the connecting block 3 and the magnetic sheet 2 to pass through smoothly. The strip-shaped hollow parts 7 are multiple, and the number of the inlet hollow parts 8 is 1 or more; when the number of the inlet hollows 8 is 1, the strip-shaped hollows 7 are communicated with the inlet hollows 8; the inner hollow height of the storage box is not less than the height of the magnetic module. Or the drawer is provided with a clapboard which divides the drawer into a plurality of storage lattices.

The drawer and the arrangement box are integrated or split.

The utility model provides a model teaching aid, what play the main demonstration effect is the magnetic module, and this magnetic module divide into three parts, the widest diameter of the cross section of connecting block is less than the widest diameter of panel, and this kind of design is favorable to demonstrating operator's holding, reduces the possibility that drops on the ground in the operation process; the magnetic sheet makes the magnetic module firmly attached to the blackboard with the magnetic absorption material; the magnetic module is internally and longitudinally provided with a through shaft which is matched with the fixing piece, one end of the fixing piece is a sucker, the other end of the fixing piece is a needle point, when the blackboard does not have a common blackboard or white board which is made of magnetic materials, the sucker of the fixing piece can be sucked on the common blackboard or white board, the magnetic module is hung on the fixing piece through the through shaft as shown in figure 2B, and when the blackboard is a simple and crude wood board, the magnetic module can be fixed on the wood board through the through shaft by the needle point of the fixing piece as shown in figure 2A. The magnetic attraction material is iron, magnetism and the like which are attracted with the magnetic sheet.

In addition, it should be noted that the terms of orientation such as front, back, left, right, up, down, horizontal, vertical, one end, and the other end in the embodiments of the present invention are only used as relative concepts or reference to normal use states, and should not be considered as limiting. The following describes the implementation of the present invention in detail with reference to specific embodiments.

The above-mentioned embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications, substitutions and improvements within the technical scope of the present invention, and these modifications, substitutions and improvements should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A model teaching aid comprises a magnetic module and a fixing piece, and is characterized in that the magnetic module comprises a panel (1), a magnetic sheet (2) and a connecting block (3); wherein the connecting block (3) is connected with the panel (1) and the magnetic sheet (2); the inner longitudinal direction of the magnetic module is provided with a through mandrel (4); the widest diameter of the cross section of the connecting block (3) is smaller than the widest diameter of the panel (1); the fixing piece comprises a needle bar (6) and a sucker (5), and the sucker (5) is connected to one end of the needle bar (6); the rod length of the needle rod (6) is longer than the axial length of the through mandrel (4); the needle rod (6) can be inserted into and penetrate the through-mandrel (4).

2. Model teaching aid according to claim 1, characterized in that the longitudinal section of the panel (1) is trapezoidal, semicircular or crescent-shaped.

3. Model teaching aid according to claim 2, characterized in that the connecting piece (3) is connected to the lower bottom surface of the trapezoid; or the connecting block (3) is connected to the semi-circular chord surface; or the connecting block (3) is connected with the crescent inner arc surface.

4. A model teaching aid as claimed in any of claims 1 to 3, further comprising a storage bin.

5. The model teaching aid as claimed in any one of claims 1 to 3, further comprising a storage box, wherein the storage box comprises a drawer, the drawer is provided with a storage box, the storage box is a hollow box, the upper panel of the box is provided with strip-shaped hollows (7), and the strip-shaped hollows (7) have a width which enables the connecting block (3) to pass through smoothly but prevents the panel (1) from passing through; one end of the strip-shaped hollow part (7) is provided with an inlet hollow part (8); the inlet hollow part (8) can enable the connecting block (3) and the magnetic sheet (2) to smoothly pass through; the inner hollow height of the storage box is not less than the height of the magnetic module.

6. Model teaching aid according to claim 5, wherein the strip-shaped openings (7) are multiple, and the inlet openings (8) are 1 or more; when the number of the inlet hollows (8) is 1, the strip-shaped hollows (7) are communicated with the inlet hollows (8).

7. A model teaching aid as claimed in claim 5, wherein the drawer and the organizer are one-piece or split.

8. A model teaching aid as claimed in any of claims 1 to 3, further comprising a storage compartment comprising a drawer having a partition therein dividing the drawer into a plurality of storage compartments.

9. A model teaching aid according to any one of claims 1-3, characterized in that the upper surface of the panel (1) has pictures, including solid phase antibody pictures, enzyme labeled antibody pictures, substrate pictures, antigen pictures, arrow pictures and specimen pictures.

10. The model teaching aid of claim 9, wherein the model teaching aid is used for teaching enzyme-linked immunosorbent assay principle.