CN204695663U - A kind of chemical experiment device of safe handling - Google Patents
A kind of chemical experiment device of safe handling Download PDFInfo
- Publication number
- CN204695663U CN204695663U CN201520345894.8U CN201520345894U CN204695663U CN 204695663 U CN204695663 U CN 204695663U CN 201520345894 U CN201520345894 U CN 201520345894U CN 204695663 U CN204695663 U CN 204695663U
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- lamp
- wick
- test tube
- transparent tube
- tube
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Abstract
The utility model discloses a kind of chemical experiment device of safe handling, comprise iron stand, test tube, iron clamp, transparent tube, spirit lamp and base; Be provided with test tube at the middle part of iron stand, test tube is fixed by iron clamp; Rubber stopper is provided with at the opening part of test tube; Be provided with circular hole in the middle of described rubber stopper, circular hole wears wireway; Be provided with transparent tube above in iron stand, transparent tube is fixed by iron clamp; Spirit lamp comprises lamp body, wick, lamp cord and the crown top of burner; Be provided with bottleneck in the upper end of lamp body, the outside of wick is threaded connection the inner side being arranged on bottleneck, and lamp cord is inner through wick, and the upper end of lamp cord is positioned at the top of wick, and the lower end of wick is positioned at lamp body inside; The utility model course of reaction slows down, and facilitates observation of students, with deep impression, and reduce air pollution, do not produce and burn solid, guarantee alcohol Thorough combustion, alcohol can not leak, economize energy, reduces the risk of breaking out of fire.
Description
Technical field
The utility model relates to chemical experiment device, the chemical experiment device of specifically a kind of safe handling.
Background technology
The gas recommended in the existing textbook experimental provision that externally does work is: load appropriate water in vitro, with rubber stopper, test tube oral area degree of tightness is suitably sealed, again test tube is fixed on iron stand obliquely, invisible spectro water is heated with spirit lamp, when water boiling, when in vitro pressure reaches a degree, rubber stopper can outwards be pushed open suddenly by water vapour and go out, illustrate that the gas expanded can externally do work, interiorly can be converted into mechanical energy.This experiment Problems existing is: the process that rubber stopper is outwards gone out is too fast, and some students do not observe the process that rubber stopper is gone out, and do not have perceptual knowledge, understand deep not.
Utility model content
The purpose of this utility model is to provide a kind of course of reaction to slow down, facilitate observation of students, with deep impression, reduce air pollution, do not produce and burn solid, guarantee alcohol Thorough combustion, alcohol can not leak, economize energy, reduces the chemical experiment device of the safe handling of the risk of breaking out of fire, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A chemical experiment device for safe handling, comprises iron stand, test tube, iron clamp, transparent tube, spirit lamp and base; Be provided with test tube at the middle part of iron stand, test tube is fixed by iron clamp; Rubber stopper is provided with at the opening part of test tube; Be provided with circular hole in the middle of described rubber stopper, circular hole wears wireway; Be provided with transparent tube above in iron stand, transparent tube is fixed by iron clamp; Also be provided with at transparent tube opening part and be equipped with rubber stopper, transparent tube, test tube are communicated with by wireway, and are provided with piston in transparent tube; Described piston is fixedly connected with the right-hand member of Compress Spring, and the left end of Compress Spring is fixedly connected with the bottom being located at transparent tube; Also offer air hole at transparent tube left end simultaneously; Described iron stand is located on base, and base is also provided with groove, and groove is provided with spirit lamp; Spirit lamp comprises lamp body, wick, lamp cord and the crown top of burner; Be provided with bottleneck in the upper end of lamp body, the outside of wick is threaded connection the inner side being arranged on bottleneck, and lamp cord is inner through wick, and the upper end of lamp cord is positioned at the top of wick, and the lower end of wick is positioned at lamp body inside; Wherein, lamp cord is asbestos lamp cord; The described crown top of burner is rotatably installed in the side lower of wick by hinge; The hinged hook being provided with rotation of the lower end side of the described crown top of burner.
Further: the opening of described test tube tilts upward setting, its pitch angle is 25-30 degree.
Further: the described crown top of burner is producing wood.
Compared with prior art, the beneficial effects of the utility model are:
1, in the utility model, course of reaction is slowed down significantly, facilitated observation of students, with deep impression.
2, in the process that the utility model spirit lamp burns, lamp cord self does not burn, there will not be alcohol and lamp cord 1 to burn simultaneously and generate the situation of mixed gas, reduce the air pollution in laboratory, what can not produce black burns solid, need not change or prune lamp cord, can also guarantee that alcohol fully contacts with air, Thorough combustion.
3, when the utility model spirit lamp is knocked over, alcohol can not leak, economize energy, reduces the risk of breaking out of fire.
Accompanying drawing explanation
Fig. 1 is the structural representation of the chemical experiment device of safe handling.
Fig. 2 is spirit lamp working state structure schematic diagram in the chemical experiment device of safe handling.
Fig. 3 is spirit lamp closed condition schematic diagram in the chemical experiment device of safe handling.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 3, in the utility model embodiment, a kind of chemical experiment device of safe handling, comprises iron stand 1, test tube 2, iron clamp 3, transparent tube 7, spirit lamp 11 and base 6; Be provided with test tube 2 at the middle part of iron stand 1, test tube 2 is fixed by iron clamp 3, and the opening of test tube 2 tilts upward setting, and its pitch angle is 25-30 degree; Rubber stopper 4 is provided with at the opening part of test tube 2; Be provided with circular hole in the middle of described rubber stopper 4, circular hole wears wireway 5; Be provided with transparent tube 7 above in iron stand 1, transparent tube 7 is fixed by iron clamp 3; Also be provided with at transparent tube 7 opening part and be equipped with rubber stopper 4, transparent tube 7, test tube 2 are communicated with by wireway 5, and are provided with piston 8 in transparent tube 7; Described piston 8 is fixedly connected with the right-hand member of Compress Spring 9, and the left end of Compress Spring 9 is fixedly connected with the bottom being located at transparent tube 7; Also offer air hole 10 at transparent tube 7 left end simultaneously; In work, to the reagent heating in test tube 2, the gas increased enters in transparent tube 7 by wireway 5, along with heating carrying out, gas push piston 8 thus extruding Compress Spring 9, show interior can constantly externally acting, process is slowed down significantly, facilitate observation of students, with deep impression, be beneficial to understand and master knowledge; Described iron stand 1 is located on base 6, and base 6 is also provided with groove 18, and groove 18 is provided with spirit lamp 11; Spirit lamp 11 comprises lamp body 17, wick 12, lamp cord 13 and the crown top of burner 14; Be provided with bottleneck in the upper end of lamp body 17, the outside of wick 12 is threaded connection the inner side being arranged on bottleneck, and lamp cord 13 is inner through wick 12, and the upper end of lamp cord 13 is positioned at the top of wick 12, and the lower end of wick 12 is positioned at lamp body 17 inside; Wherein, lamp cord 13 is asbestos lamp cord, in the process of spirit lamp burning, lamp cord 13 self does not burn, and there will not be alcohol and lamp cord 13 to burn simultaneously and generates the situation of mixed gas, reduce the air pollution in laboratory, what asbestos lamp cord can not produce black in spirit lamp combustion process burns solid, need not change or prune lamp cord 13, the lamp cord 13 of asbestos can also guarantee that alcohol fully contacts with air, thus Thorough combustion; The described crown top of burner 14 is rotatably installed in the side lower of wick 12 by hinge 15, when spirit lamp is knocked over, because wick 12 and bottleneck are threaded connection, the alcohol therefore in lamp body 17 can not leak, economize energy, reduces the risk of breaking out of fire; Meanwhile, the crown top of burner 14 can bales catch on wick 12 and lamp cord 13, by spirit lamp extinguish, prevent the generation of fire; The hinged hook 16 being provided with rotation of the lower end side of the described crown top of burner 14, after finishing experiment, hanging in place by linking up with 16 by spirit lamp 11, being conducive to depositing spirit lamp 11 neatly; The described crown top of burner 14 is producing wood, adopts the producing wood crown top of burner 14, portable construction, easy to process, simple and easy, and material is easy to obtain, and cost of manufacture is low, more environmental protection.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. a chemical experiment device for safe handling, comprises iron stand (1), test tube (2), iron clamp (3), transparent tube (7), spirit lamp (11) and base (6); It is characterized in that, be provided with test tube (2) at the middle part of iron stand (1), test tube (2) is fixed by iron clamp (3); Rubber stopper (4) is provided with at the opening part of test tube (2); Be provided with circular hole in the middle of described rubber stopper (4), circular hole wears wireway (5); Be provided with transparent tube (7) in the middle top of iron stand (1), transparent tube (7) is fixed by iron clamp (3); Also be provided with at transparent tube (7) opening part and be equipped with rubber stopper (4), transparent tube (7), test tube (2) are communicated with by wireway (5), and are provided with piston (8) in transparent tube (7); Described piston (8) is fixedly connected with the right-hand member of Compress Spring (9), and the left end of Compress Spring (9) is fixedly connected with the bottom being located at transparent tube (7); Also offer air hole (10) at transparent tube (7) left end simultaneously; Described iron stand (1) is located on base (6), and base (6) is also provided with groove (18), and groove (18) is provided with spirit lamp (11); Spirit lamp (11) comprises lamp body (17), wick (12), lamp cord (13) and the crown top of burner (14); Bottleneck is provided with in the upper end of lamp body (17), the outside of wick (12) is threaded connection the inner side being arranged on bottleneck, lamp cord (13) is inner through wick (12), and the upper end of lamp cord (13) is positioned at the top of wick (12), and the lower end of wick (12) is positioned at lamp body (17) inside; Wherein, lamp cord (13) is asbestos lamp cord; The described crown top of burner (14) is rotatably installed in the side lower of wick (12) by hinge (15); The hinged hook (16) being provided with rotation of the lower end side of the described crown top of burner (14).
2. the chemical experiment device of safe handling according to claim 1, is characterized in that, the opening of described test tube (2) tilts upward setting, and its pitch angle is 25-30 degree.
3. the chemical experiment device of safe handling according to claim 1, is characterized in that, the described crown top of burner (14) is producing wood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345894.8U CN204695663U (en) | 2015-05-26 | 2015-05-26 | A kind of chemical experiment device of safe handling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345894.8U CN204695663U (en) | 2015-05-26 | 2015-05-26 | A kind of chemical experiment device of safe handling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204695663U true CN204695663U (en) | 2015-10-07 |
Family
ID=54235927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520345894.8U Expired - Fee Related CN204695663U (en) | 2015-05-26 | 2015-05-26 | A kind of chemical experiment device of safe handling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204695663U (en) |
-
2015
- 2015-05-26 CN CN201520345894.8U patent/CN204695663U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20180526 |
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| CF01 | Termination of patent right due to non-payment of annual fee |