CN202366688U

CN202366688U - Gas generator for chemical teaching

Info

Publication number: CN202366688U
Application number: CN2011205428934U
Authority: CN
Inventors: 李德明
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-17
Filing date: 2011-12-17
Publication date: 2012-08-08
Anticipated expiration: 2021-12-17

Abstract

The utility model discloses a gas generator for chemical teaching. The gas generator comprises a cylindrical reaction body of which the upper end has an opening, a cover body which is arranged on the top of the reaction body and is matched with the reaction body, a tied rope of which the top is tied at the bottom of the cover body, a medicinal pocket which is hung at the bottom of the tied rope and a liquid storage body which is fixed to the bottom of one side of the reaction body and is communicated with the reaction body, wherein external pipe threads are formed on the reaction body; internal pipe threads are formed on the cover body; the external pipe threads are matched with the internal pipe threads; massive medicines are put into the medicinal pocket; an opening is formed at the upper end of the liquid storage body; a rubber plug for plugging the opening is arranged on the opening; an exhaust pipe which is communicated with the reaction body is arranged on the reaction body; and an exhaust valve is arranged on the exhaust pipe. The gas generator has the advantages that (1) a structure is simple; (2) gas difficultly leaks; (3) the volume is small; (4) the consumption of the medicines can be reduced; and (5) the cover body is convenient to screw down and loosen.

Description

A kind of chemistry teaching is used gas generator

Technical field

The utility model relates to a kind of chemistry teaching and uses laboratory apparatus, particularly a kind of gas generator.

Background technology

At present, in the junior middle school chemistry teaching practice, produce gas with experimental facilities such as flask, wireways usually, but this equipment weak point of producing gas is more, mainly contains following 3 points: the first, air-tightness is relatively poor, easily gas leakage; The second, volume is big, and it is big to produce the needed drug consumption of gas; The 3rd, intuitive is poor, is unfavorable for the understanding of student to knowledge.

Summary of the invention

The problem that the utility model will solve is: provide the chemistry teaching that a kind of air-tightness is strong, body is less and drug consumption is little to use gas generator.

In order to solve the problems of the technologies described above; The chemistry teaching of the utility model is used gas generator; Comprise that the columned reacting body of open upper end, lid, the top with reacting body is complementary that are arranged on the reacting body top bind tether in the lid bottom, are suspended on the medicine pocket of tether bottom and are fixed on the tank body that the bottom of reacting body one side is connected with reacting body, said reacting body is provided with external pipe thread, and said lid is provided with Internal Pipe Thread; Said external pipe thread and Internal Pipe Thread are complementary; Be placed with block medicine in the said medicine pocket, the upper end of said tank body is provided with opening, and said opening is provided with the rubber stopper that occlusion of openings is used; Said reacting body is provided with the blast pipe that is connected with reacting body, and said blast pipe is provided with air bleeding valve.

For the ease of tightening and unclamping lid, the chemistry teaching of the utility model is used gas generator, and the top of said lid is fixed with the handle of a swivelling cover body and function.

The beneficial effect that the utility model is obtained is: (1) is simple in structure; (2) reacting body is provided with external pipe thread, and lid is provided with Internal Pipe Thread, and external pipe thread and Internal Pipe Thread are complementary, thereby air-tightness is strong, is difficult for gas leakage; (3) tank body and reacting body link together, and be integral structure, thereby volume are little; Chemical reaction takes place when (4) liquid contacts with block medicine, produce gas, along with the gas that produces is more and more; Air pressure also progressively increases; Air pressure forces down the liquid level in the reacting body in the process that increases, and liquid is no longer contacted with block medicine; Thereby can stop chemical reaction automatically, reduce the consumption of medicine; (5) top of lid is fixed with the handle of a swivelling cover body and function, is convenient to tighten and unclamp lid.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among the figure: 1, blast pipe, 2, air bleeding valve, 3, lid, 4, handle, 5, tether, 6, reacting body,

7, medicine pocket, 8, block medicine, 9, tank body, 10, opening, 11, rubber stopper.

The specific embodiment

As shown in Figure 1; The chemistry teaching of the utility model is used gas generator; Comprise that the columned reacting body 6 of open upper end, lid 3, the top with reacting body 6 is complementary that are arranged on reacting body 6 tops bind tether 5 in lid 3 bottoms, are suspended on the medicine pocket 7 of tether 5 bottoms and are fixed on the tank body 9 that the bottom of reacting body 6 one sides is connected with reacting body 6, said reacting body 6 is provided with external pipe thread, and said lid 3 is provided with Internal Pipe Thread; Said external pipe thread and Internal Pipe Thread are complementary; Be placed with block medicine 8 in the said medicine pocket 7, the upper end of said tank body 9 is provided with opening 10, and said opening 10 is provided with the rubber stopper 11 of occlusion of openings 10 usefulness; Said reacting body 6 is provided with the blast pipe 1 that is connected with reacting body 6, and said blast pipe 1 is provided with air bleeding valve 2; The top of said lid 3 is fixed with the handle 4 of rotation lid 3 usefulness.

When producing gas, unplug rubber stopper 11, inject liquid, when liquid and block medicine 8 are contacted from opening 10; Just begin to take place chemical reaction, and produce gas, will in time clog opening with rubber stopper 11 this moment, along with the gas that produces is more and more; Air pressure also progressively increases, and air pressure forces down the liquid level in the reacting body 6 in the process that increases; Liquid is no longer contacted with block medicine 8, thereby can stop chemical reaction automatically, reduce the consumption of medicine.

Gas is opened air bleeding valve 2 if desired, can use the gas that produces in the reacting body.

Claims

1. a chemistry teaching is used gas generator; It is characterized in that: comprise that the columned reacting body (6) of open upper end, lid (3), the top with reacting body (6) is complementary that are arranged on reacting body (6) top bind tether (5) in lid (3) bottom, are suspended on the medicine pocket (7) of tether (5) bottom and are fixed on the tank body (9) that the bottom of reacting body (6) one sides is connected with reacting body (6); Said reacting body (6) is provided with external pipe thread, said lid

(3) be provided with Internal Pipe Thread; Said external pipe thread and Internal Pipe Thread are complementary; Be placed with block medicine (8) in the said medicine pocket (7), the upper end of said tank body (9) is provided with opening (10), and said opening (10) is provided with the rubber stopper (11) of occlusion of openings (10) usefulness; Said reacting body (6) is provided with the blast pipe (1) that is connected with reacting body (6), and said blast pipe (1) is provided with air bleeding valve (2).

2. chemistry teaching according to claim 1 is used gas generator, it is characterized in that: the top of said lid (3) is fixed with the handle (4) of rotation lid (a 3) usefulness.