CN203300095U - Recoil dolly teaching aid - Google Patents
Recoil dolly teaching aid Download PDFInfo
- Publication number
- CN203300095U CN203300095U CN201320363182XU CN201320363182U CN203300095U CN 203300095 U CN203300095 U CN 203300095U CN 201320363182X U CN201320363182X U CN 201320363182XU CN 201320363182 U CN201320363182 U CN 201320363182U CN 203300095 U CN203300095 U CN 203300095U
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- China
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- dolly
- recoil
- teaching aid
- air bag
- plastic
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Abstract
The utility model discloses a recoil dolly teaching aid. The recoil dolly teaching aid is characterized by comprising a plastic dolly body, an air bag and a rubber tube, wherein wheel supports are sequentially sleeved on the plastic dolly body, the wheel supports are equipped with wheels, the rubber tube is arranged on the plastic dolly body in an inclination mode, the air bag is arranged at a high end port of the rubber tube through a rubber band, and a lower end port of the rubber tube penetrates through the plastic dolly body. The recoil dolly teaching aid has a simple structure, has strong operationality and can visually demonstrate an air recoil process. A design concept of the teaching aid aims to culture science literacy of pupils for initiation education, actively advocates a learning activity which is mainly explorative and makes the pupils to experience by themselves, cultures curiosity and exploration desires of the pupils and leads the pupils to understand recoil essence, moreover, the plastic rubber tube is utilized as power for expansion of the air bag, a dolly and the air bag are simultaneously released, and the dolly does motion in an opposite direction when air is released from the air bag. The recoil dolly teaching aid is environment friendly, is suitable for advocating environmental protection and saving consciousness in a novel society.
Description
Technical field
The utility model relates to a kind of teaching aid, is specifically a kind of recoil dolly teaching aid of demonstrating gas backwash.
Background technology
At present, primary school education is basis, seems extremely important; Its teaching aid kind is also a lot, but function singlenesses all, just for needing separately the content of showing to design.Cultivation pupil scientific literacy is that the formative education of aim is also important; For the teacher, in the urgent need to by the foreign object teaching aid, being accompanied by visual illustration, complete concrete teaching; For gas backwash, be also like this; The teacher, in the urgent need to teaching aid targetedly, well not can be used for the demonstrating appliance of primary school to gas backwash at present; And existing demonstration effect is not obvious again, and is difficult for observing, and is difficult to make student's proof procedure of gas backwash that undergoes, thereby brings certain difficulty to teaching, even has influence on student performance and learning interest; Therefore need to be improved.
The utility model content
The purpose of this utility model is to provide a kind of recoil dolly teaching aid of primary school to gas backwash understanding that can be used at this; It is simple in structure, and is easy to make, workable, can demonstrate intuitively the process of gas backwash.
The utility model is achieved in that a kind of recoil dolly teaching aid of structure, it is characterized in that: comprise plastic body cover, air bag, sebific duct; On described plastic body cover, be inserted in successively wheel stand, installing wheel on wheel stand; Sebific duct is inclined on plastic body cover; Described air bag is arranged on the high port of sebific duct by bungee; Wherein the low port of sebific duct passes plastic body cover.
According to described in the utility modelRecoil dolly teaching aid
, it is characterized in that: describedThe low port of sebific duct is provided with control device.
The utility model has the advantage of: the utility model provides a kind of recoil dolly teaching aid at this; Simple in structure, workable, can demonstrate intuitively the process of gas backwash, both be convenient to the teacher and completed quickly teaching task, improved again interest and the manipulative ability of Students ' Learning, very helpful to the ability of the analysis and solve problem of cultivating the student.This teaching aid is to cultivate the formative education that pupil's scientific literacy is aim on design concept, it is actively advocated and allows the student in person experience to probe into to be main learning activities, to cultivate their curiosity and probe into wish, guide them tentatively to understand the essence of recoil.Its power, with plastics sebific duct inflation air bag, discharges dolly and air bag together simultaneously, and air bag is emitted in the gas process, and dolly moves round about, and very environmental protection, under applicable present novel society, is advocated environmental protection and economy consciousness.
The accompanying drawing explanation
Fig. 1 is the structural representation of recoil dolly teaching aid described in the utility model
Wherein: 101, plastic body cover, 102, air bag, 103, sebific duct, 104, wheel stand, 105, wheel, the high port of 106a, sebific duct, the low port of 106b, sebific duct, 107, control device.
Embodiment
Below in conjunction with 1 pair of the utility model of accompanying drawing, be elaborated, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment that obtains, and all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model provides a kind of recoil dolly teaching aid at this, comprises plastic body cover 101, air bag 102, sebific duct 103; On described plastic body cover 101, be inserted in successively wheel stand 104, on wheel stand 104, installing wheel 105; Sebific duct 103 is inclined on plastic body cover 101; Described air bag 102 is arranged on the high port 106a of sebific duct 103 by bungee; Wherein the low port 106b of sebific duct 103 passes plastic body cover 101.
According to described in the utility modelRecoil dolly teaching aid
, describedThe low port 106b of sebific duct 103 is provided with control device 107, by 107 pairs of control device, controls low port 106b and plays the control regulating action, thereby play the speed of giving vent to anger of regulating.
Assembling process: at plastic body cover 101(such as plastic bottle) on be inserted in successively wheel stand 104(front-wheel support, and rear wheel support), then installing wheel 105; Operating process: air bag 102(air bag 102 can be to balloon) by bungee, be arranged on sebific duct 103 1 ends, after air bag 102 is blown afloat, pinch the air bag mouth; The assurance opening, towards the vehicle body rear, is loosed one's grip, and the spray automobile has just moved up.This teaching aid is to cultivate the formative education that pupil's scientific literacy is aim on design concept, it is actively advocated and allows the student in person experience to probe into to be main learning activities, to cultivate their curiosity and probe into wish, guide them tentatively to understand the essence of recoil.Its power, with plastics sebific duct inflation air bag, discharges dolly and air bag together simultaneously, and air bag is emitted in the gas process, and dolly moves round about, and very environmental protection, under applicable present novel society, is advocated environmental protection and economy consciousness.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. a recoil dolly teaching aid, is characterized in that: comprise plastic body cover (101), air bag (102), sebific duct (103); On described plastic body cover (101), be inserted in successively wheel stand (104), the upper installing wheel (105) of wheel stand (104); Sebific duct (103) is inclined on plastic body cover (101); Described air bag (102) is arranged on the high port (106a) of sebific duct (103) by bungee; Wherein the low port (106b) of sebific duct (103) passes plastic body cover (101).
2.
According to claim 1Recoil dolly teaching aid
, it is characterized in that: describedThe low port (106b) of sebific duct (103) is provided with control device (107).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320363182XU CN203300095U (en) | 2013-06-24 | 2013-06-24 | Recoil dolly teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320363182XU CN203300095U (en) | 2013-06-24 | 2013-06-24 | Recoil dolly teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300095U true CN203300095U (en) | 2013-11-20 |
Family
ID=49576091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320363182XU Expired - Fee Related CN203300095U (en) | 2013-06-24 | 2013-06-24 | Recoil dolly teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300095U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107038948A (en) * | 2017-06-16 | 2017-08-11 | 郑俊岩 | Hydrodynamic force is pollution-free concept ship demonstration model for teaching |
| CN109559607A (en) * | 2019-02-14 | 2019-04-02 | 张东贤 | A kind of small experimental provision of entertaining |
-
2013
- 2013-06-24 CN CN201320363182XU patent/CN203300095U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107038948A (en) * | 2017-06-16 | 2017-08-11 | 郑俊岩 | Hydrodynamic force is pollution-free concept ship demonstration model for teaching |
| CN109559607A (en) * | 2019-02-14 | 2019-04-02 | 张东贤 | A kind of small experimental provision of entertaining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20140624 |
|
| EXPY | Termination of patent right or utility model |