CN204904682U - Teaching aid of demonstration hydrogen detonation - Google Patents
Teaching aid of demonstration hydrogen detonation Download PDFInfo
- Publication number
- CN204904682U CN204904682U CN201520628541.9U CN201520628541U CN204904682U CN 204904682 U CN204904682 U CN 204904682U CN 201520628541 U CN201520628541 U CN 201520628541U CN 204904682 U CN204904682 U CN 204904682U
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- staving
- pvc film
- upper cover
- teaching aid
- utility
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Abstract
The utility model relates to a teaching aid trade technical field refers in particular to a teaching aid of demonstration hydrogen detonation, including the staving, the staving upper end is fixed to be provided with the upper cover, is provided with the intake pipe on the lateral wall of staving and lights the pipe, lights to manage to inlay to be equipped with the firecrackers lead wire, and during this firecrackers lead wire one end stretched into the inner chamber of staving, this firecrackers lead wire other end stretches out lighted the outside of tubes, the upper cover be provided with explosion mouthful on the surface, it is still including the method lid and PVC film that match with explosion mouth, the PVC film sets up on the upper surface of upper cover, the setting of method lid is on the upper surface of PVC film, the upper surface of upper cover passes through the screw and covers looks fixed connection with PVC film, method in proper order, the inner chamber wall threaded connection of staving has regulating cover. Using the utility model discloses the time, the security that has greatly improved the lecture experiment, improve the success rate of demonstration. The utility model has the advantages of simple structure, it is reasonable to set up, and the cost of manufacture is low.
Description
Technical field
The utility model relates to teaching aid industry technology field, refers in particular to a kind of teaching aid demonstrating hydrogen detonating.
Background technology
In current high school chemistry teaching, special teaching aid is not had to the demonstration of hydrogen detonating phenomenon, normally by Hydrogen collection in a container, by vessel port after collection, light the mixture of hydrogen and air from opening part, as: the existing demonstration to hydrogen detonating phenomenon, be that Hydrogen collection is plugged with in the paper web of spitball in opening, then take off spitball, manually light a fire at paper web opening part, the mixed gas of hydrogen and air is burnt, produces detonation phenomenon.This technology has the following disadvantages: because hydrogen density is less than atmospheric density, after taking off spitball, hydrogen can be escaped very soon from paper web, as lighted a fire not in time, in mixed gas, the content of hydrogen lower than burning condition, can cause and demonstrate unsuccessfully, simultaneously, at paper web opening part closely manual ignition, certain danger can be brought to demonstrator, there is potential safety hazard.
Summary of the invention
The purpose of this utility model is defect for prior art and deficiency, provides a kind of structure simple, the teaching aid of demonstration hydrogen detonating reasonable in design, easy to use.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of teaching aid demonstrating hydrogen detonating described in the utility model, comprise staving, described staving upper end is fixedly installed upper cover, the sidewall of described staving be provided with draft tube and light pipe, described pipe of lighting is embedded with firecrackers lead-in wire, these firecrackers one end that goes between is stretched in the inner chamber of staving, and these firecrackers lead-in wire other end stretches out to be lighted outside pipe; The surface of described upper cover is provided with blast mouth, it also includes the method lid and PVC film that match mutually with the mouth that explodes, described PVC film is arranged on the upper surface of upper cover, method lid is arranged on the upper surface of PVC film, and the upper surface of upper cover is fixedly connected with PVC film, Fa Gai successively by screw; The internal chamber wall of described staving has been threaded adjustable cap.
Further, the lower surface of described adjustable cap is provided with boss, and staving is provided with the supporting section matched mutually with boss.
Further, the longitudinal section of described supporting section is trapezoidal shape.
Further, the xsect of described boss has a rectangular shape.
After adopting said structure, the utility model beneficial effect is: a kind of teaching aid demonstrating hydrogen detonating described in the utility model, comprise staving, described staving upper end is fixedly installed upper cover, the sidewall of described staving be provided with draft tube and light pipe, described pipe of lighting is embedded with firecrackers lead-in wire, and these firecrackers one end that goes between is stretched in the inner chamber of staving, and these firecrackers lead-in wire other end stretches out to be lighted outside pipe; The surface of described upper cover is provided with blast mouth, it also includes the method lid and PVC film that match mutually with the mouth that explodes, described PVC film is arranged on the upper surface of upper cover, method lid is arranged on the upper surface of PVC film, and the upper surface of upper cover is fixedly connected with PVC film, Fa Gai successively by screw; The internal chamber wall of described staving has been threaded adjustable cap.When using the utility model, using firecrackers lead-in wire to ignite by the pipe of lighting at staving, arranging PVC film to seal by the blast mouth at upper cover, drastically increase the security of lecture experiment; By the internal chamber wall threaded adjusting lid at staving, both can control the quick-fried volume that rings, and in turn ensure that ring blast chamber has enough hydrogen, improve the success ratio of demonstration.It is simple that the utility model has structure, arranges rationally, the advantages such as cost of manufacture is low.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction schematic diagram.
Description of reference numerals:
1, staving; 1-1, supporting section; 1-2, draft tube; 1-3, light pipe; 2, upper cover; 2-1, blast mouth; 3, adjustable cap; 3-1, boss; 4, firecrackers lead-in wire; 5, Fa Gai; 6, PVC film; 7, screw.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the technical solution of the utility model is described.
As shown in Figure 1, a kind of teaching aid demonstrating hydrogen detonating described in the utility model, comprise staving 1, described staving 1 upper end is fixedly installed upper cover 2, and the sidewall of described staving 1 be provided with draft tube 1-2 and light pipe 1-3, this draft tube 1-2 one end is connected with source of the gas, the described pipe 1-3 that lights is embedded with firecrackers lead-in wire 4, these firecrackers 4 one end that go between are stretched in the inner chamber of staving 1, and these firecrackers 4 other ends that go between stretch out and light outside pipe 1-3, and the length of firecrackers lead-in wire 4 can set according to self-demand.
The surface of described upper cover 2 is provided with blast mouth 2-1, it also includes the method lid 5 and PVC film 6 that match with mouthful 2-1 phase of exploding, described PVC film 6 is arranged on the upper surface of upper cover 2, method lid 5 is arranged on the upper surface of PVC film 6, and the upper surface of upper cover 2 is fixedly connected with PVC film 6, method lid 5 successively by screw 7; The internal chamber wall of described staving 1 has been threaded adjustable cap 3.
Further, the lower surface of described adjustable cap 3 is provided with boss 3-1, and staving 1 is provided with the supporting section 1-1 matched with boss 3-1 phase, and when the lowest part that adjustable cap 3 is positioned at staving 1 is threaded mutually, boss 3-1 can hide oneself in supporting section 1-1.
Further, the longitudinal section of described supporting section 1-1 is trapezoidal shape, is convenient to staving 1 to lie on platform or desktop.
Further, the xsect of described boss 3-1 has a rectangular shape, and is convenient to rotate adjustable cap 3.
When using the utility model, using firecrackers lead-in wire to ignite by the pipe of lighting at staving, arranging PVC film to seal by the blast mouth at upper cover, drastically increase the security of lecture experiment; By the internal chamber wall threaded adjusting lid at staving, both can control the quick-fried volume that rings, and in turn ensure that ring blast chamber has enough hydrogen, improve the success ratio of demonstration.In addition, this structure is simple, reasonable in design, low cost of manufacture.
Be more than the utility model preferably embodiment, the utility model those skilled in the art can also change above-mentioned embodiment and revise.Therefore, the utility model is not limited to above-mentioned embodiment, and any apparent improvement that every those skilled in the art do on basis of the present utility model, replacement or modification all belong to protection domain of the present utility model.
Claims (4)
1. demonstrate the teaching aid of hydrogen detonating for one kind, comprise staving (1), it is characterized in that: described staving (1) upper end is fixedly installed upper cover (2), the sidewall of described staving (1) be provided with draft tube (1-2) and light pipe (1-3), described pipe (1-3) of lighting is embedded with firecrackers lead-in wire (4), these firecrackers lead-in wire (4) one end is stretched in the inner chamber of staving (1), and these firecrackers lead-in wire (4) other end stretches out lights pipe (1-3) outward;
The surface of described upper cover (2) is provided with blast mouth (2-1), it also includes the method lid (5) and PVC film (6) that match mutually with the mouth that explodes (2-1), described PVC film (6) is arranged on the upper surface of upper cover (2), method lid (5) is arranged on the upper surface of PVC film (6), and the upper surface of upper cover (2) is fixedly connected with PVC film (6), method lid (5) successively by screw (7); The internal chamber wall of described staving (1) has been threaded adjustable cap (3).
2. a kind of teaching aid demonstrating hydrogen detonating according to claim 1, it is characterized in that: the lower surface of described adjustable cap (3) is provided with boss (3-1), staving (1) is provided with the supporting section (1-1) matched mutually with boss (3-1).
3. a kind of teaching aid demonstrating hydrogen detonating according to claim 2, is characterized in that: the longitudinal section of described supporting section (1-1) is trapezoidal shape.
4. a kind of teaching aid demonstrating hydrogen detonating according to claim 2, is characterized in that: the xsect of described boss (3-1) has a rectangular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520628541.9U CN204904682U (en) | 2015-08-19 | 2015-08-19 | Teaching aid of demonstration hydrogen detonation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520628541.9U CN204904682U (en) | 2015-08-19 | 2015-08-19 | Teaching aid of demonstration hydrogen detonation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204904682U true CN204904682U (en) | 2015-12-23 |
Family
ID=54926843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520628541.9U Expired - Fee Related CN204904682U (en) | 2015-08-19 | 2015-08-19 | Teaching aid of demonstration hydrogen detonation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204904682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036058A (en) * | 2018-06-04 | 2018-12-18 | 湖南工学院 | A kind of imflammable gas blast accident simulation flowchart device |
-
2015
- 2015-08-19 CN CN201520628541.9U patent/CN204904682U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036058A (en) * | 2018-06-04 | 2018-12-18 | 湖南工学院 | A kind of imflammable gas blast accident simulation flowchart device |
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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: 20151223 Termination date: 20160819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |