CN202816247U - Gill model teaching aid - Google Patents
Gill model teaching aid Download PDFInfo
- Publication number
- CN202816247U CN202816247U CN 201220519477 CN201220519477U CN202816247U CN 202816247 U CN202816247 U CN 202816247U CN 201220519477 CN201220519477 CN 201220519477 CN 201220519477 U CN201220519477 U CN 201220519477U CN 202816247 U CN202816247 U CN 202816247U
- Authority
- CN
- China
- Prior art keywords
- gill
- model
- box body
- arc
- teaching aid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A gill model teaching aid mainly comprises a box body. The box body has a partially open face. A plurality of gill body models are placed inside the box body in an overlapping way. Each gill body model is composed of an arc body and a plurality of thin threads. The inner side of each arc body is provided with a plurality of sawtooth edges. The thin threads are radially arranged on the outer side of each arc body. The box body simulates a gill chamber. The arc bodies simulate the gill arches. The sawtooth edges on the inner side of each arc body simulate the gill raker. The threads simulate the gill filaments. The teaching aid provided by the utility model has the advantages of strong visibility, simple demonstration, perceptual knowledge enhancement of students and good effects.
Description
Technical field
The utility model relates to a kind of biology teaching aid, is specifically related to a kind of gill model teaching aid.
Background technology
In the breathing bioconversion medium of fish, need respiratory apparatus-gill of study fish, the common experiment material of probing into will be used live fish, but the gill is hidden by the gill cover, and fish moves about in water and is difficult for observing, if cut off the gill cover, can damage fish.
The utility model content
The purpose of this utility model is for the deficiency that lacks gill model in the existing bioconversion medium, and a kind of gill model teaching aid is provided.
The purpose of this utility model realizes by following technological means: the box body that is mainly opened wide by a face portion consists of, the box body inner stacks is placed a plurality of gill body Models, gill body Model is comprised of arc body and a plurality of filament, and there are a plurality of jagged edgeses the arc body inboard, and outer radial is arranged a plurality of filaments.
Compared with prior art the utlity model has following obvious advantage: the box body simulation gill cavity, the arc body simulation visceral arch, inboard jagged edges simulation gill raker, the filament simulation gill filament, the utility model is visual by force, demonstration is simple, has strengthened student's perceptual knowledge, and is effective.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure, 1-box body, 2-filament, 3-arc body, 4-jagged edges.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail:
Gill model teaching aid as shown in Figure 1, the box body 1 that is mainly opened wide by a face portion consists of, and box body 1 inner stacks is placed a plurality of gill body Models, and gill body Model is comprised of arc body 3 and a plurality of filament 2, there are a plurality of jagged edgeses 4 arc body 3 inboards, and outer radial is arranged a plurality of filaments 2.
The above; it only is a part of embodiment of the present utility model; protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (1)
1. gill model teaching aid, the box body that is mainly opened wide by a face portion consists of, and it is characterized in that: described box body inner stacks is placed a plurality of gill body Models, and described gill body Model is comprised of arc body and a plurality of filament, there are a plurality of jagged edgeses described arc body inboard, and outer radial is arranged a plurality of described filaments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519477 CN202816247U (en) | 2012-10-11 | 2012-10-11 | Gill model teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519477 CN202816247U (en) | 2012-10-11 | 2012-10-11 | Gill model teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816247U true CN202816247U (en) | 2013-03-20 |
Family
ID=47875093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220519477 Expired - Fee Related CN202816247U (en) | 2012-10-11 | 2012-10-11 | Gill model teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816247U (en) |
-
2012
- 2012-10-11 CN CN 201220519477 patent/CN202816247U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20131011 |