CN203503210U - Injector-contained atmospheric pressure measuring device - Google Patents
Injector-contained atmospheric pressure measuring device Download PDFInfo
- Publication number
- CN203503210U CN203503210U CN201320656184.8U CN201320656184U CN203503210U CN 203503210 U CN203503210 U CN 203503210U CN 201320656184 U CN201320656184 U CN 201320656184U CN 203503210 U CN203503210 U CN 203503210U
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- piston rod
- handle
- hole
- measuring device
- atmospheric pressure
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Abstract
Disclosed in the utility model is an injector-contained atmospheric pressure measuring device comprising an injector body and a dynamometric device. The measuring device is characterized in that a piston rod is arranged at the injector body; one end of the piston rod extends into the injector body and a piston is arranged at the end portion; and the other end is provided with a handle. A traction device is arranged at the handle or the piston rod; and the handle or the piston rod is connected with the dynamometric device by the traction device. According to the utility model, materials can be taken easily; the device can be operated simply and the presented situation is visual and clear; and scientificity, the innovation, and the enlightening are realized. Meanwhile, the measuring device has the small size and thus can be carried and operated conveniently.
Description
Technical field
The utility model belongs to teaching aid field, specifically, relates to a kind of syringe atmospheric pressure measuring device.
Background technology
Existing atmosphere measuring experiment teaching aid, what generally adopt is mercury gage and metal film barometer.But above-mentioned two kinds of experiment teaching aids all exist that cost is expensive, the defect of complicated operation, and two kinds of experiment teaching aids are all the designs first having, and are unfavorable for describing intuitively the process of atmosphere measuring.
Summary of the invention
The technical problems to be solved in the utility model is to overcome above-mentioned defect, provides a kind of easy, simple to operate, visual phenomenon of drawing materials to understand to have science, novelty and suggestive syringe atmospheric pressure measuring device.
For addressing the above problem, the technical scheme that the utility model adopts is:
A syringe atmospheric pressure measuring device, comprises syringe body and device for measuring force, it is characterized in that: on described syringe body, be provided with piston rod; One end of described piston rod extend in syringe body and is provided with piston in end, and the other end is provided with handle; On described handle or piston rod, be provided with draw-gear, and connect device for measuring force by draw-gear.
Described draw-gear comprises and is arranged on handle or some through holes of piston rod end, and through hole runs through handle or piston rod; In described through hole, be provided with traction rope.
Described draw-gear comprises and is arranged on handle or piston rod end some to through hole, and through hole does not run through handle or piston rod; Every a pair of through hole cooperatively interacts, and in every a pair of through hole, is flexibly connected the two ends of traction rope.
Described device for measuring force is the dull and stereotyped dynamometer of 5N.
Described syringe body is the syringe body of 1ml.
Owing to having adopted technique scheme, compared with prior art, the utility model arranges through hole in the outboard end of handle or piston rod, and through hole runs through or do not run through handle or piston rod.Traction rope is installed in through hole, and traction rope connects dynamometer, and the data that record according to dynamometer can be measured atmospheric numerical value.The utility model is drawn materials easily, simple to operate, and visual phenomenon understands to have science, novelty and enlightenment, also has the feature that volume is little simultaneously, is easy to carry and operates.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Embodiment
Embodiment:
As shown in Figure 1, a kind of syringe atmospheric pressure measuring device, comprises syringe body 1 and device for measuring force, on described syringe body 1, is provided with piston rod 3.One end of described piston rod 3 extend in syringe body 1 and in end, is provided with piston 2, and the other end is provided with handle 4.On described handle 4 or piston rod 3, be provided with draw-gear, and connect device for measuring force by draw-gear.
In the utility model, described device for measuring force is the dull and stereotyped dynamometer 6 of 5N.The preferred forms of described syringe body is to select the syringe body of 1ml.
Draw-gear comprises two kinds of mounting meanss:
Mounting means one:
Described draw-gear comprises and is arranged on handle 4 or some through holes of piston rod 3 ends, and through hole runs through handle or piston rod, is provided with traction rope 5 in through hole.Traction rope 5 can be soft fine rule, can be also hard iron wire etc.
Mounting means two:
Described draw-gear comprises and is arranged on handle or piston rod end some to through hole.Herein, through hole always occurs in pairs, and best embodiment is that every a pair of through hole symmetry is arranged on the two sides of handle or piston rod.In the present embodiment, through hole does not run through handle 4 or piston rod 3.Every a pair of through hole cooperatively interacts, and in every a pair of through hole, is flexibly connected the two ends of traction rope 5.
When measuring, first with rule, measure the length that has scale part on syringe, calculate the area of piston.Next a step is emptying after syringe is repeatedly absorbed water, and hauls piston and makes uniform motion holding up in direction with the dull and stereotyped dynamometer of 5N along the axis of handle, measures the friction force between piston and wall.Next step is by emptying again after syringe water suction, with the stifled tight pin hole seat of thumb, hauls piston make uniform motion along axis direction with dynamometer, measures pulling force now, calculates the pressure of atmosphere to piston.Finally according to formula, can obtain atmospheric pressure.
The utility model arranges through hole in the outboard end of handle or piston rod, and through hole runs through or do not run through handle or piston rod.Traction rope is installed in through hole, and traction rope connects dynamometer, and the data that record according to dynamometer can be measured atmospheric numerical value.The utility model is drawn materials easily, simple to operate, and visual phenomenon understands to have science, novelty and enlightenment, also has the feature that volume is little simultaneously, is easy to carry and operates.
The utility model is not limited to above-mentioned preferred implementation, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or akin technical scheme, all belong to protection domain of the present utility model.
Claims (5)
1. a syringe atmospheric pressure measuring device, comprises syringe body and device for measuring force, it is characterized in that: on described syringe body, be provided with piston rod; One end of described piston rod extend in syringe body and is provided with piston in end, and the other end is provided with handle; On described handle or piston rod, be provided with draw-gear, and connect device for measuring force by draw-gear.
2. syringe atmospheric pressure measuring device according to claim 1, is characterized in that: described draw-gear comprises and be arranged on handle or some through holes of piston rod end, and through hole runs through handle or piston rod; In described through hole, be provided with traction rope.
3. syringe atmospheric pressure measuring device according to claim 1, is characterized in that: described draw-gear comprises and be arranged on handle or piston rod end some to through hole, and through hole does not run through handle or piston rod; Every a pair of through hole cooperatively interacts, and in every a pair of through hole, is flexibly connected the two ends of traction rope.
4. according to the syringe atmospheric pressure measuring device described in claim 2 or 3, it is characterized in that: described device for measuring force is the dull and stereotyped dynamometer of 5N.
5. syringe atmospheric pressure measuring device according to claim 4, is characterized in that: the syringe body that described syringe body is 1ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320656184.8U CN203503210U (en) | 2013-10-23 | 2013-10-23 | Injector-contained atmospheric pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320656184.8U CN203503210U (en) | 2013-10-23 | 2013-10-23 | Injector-contained atmospheric pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203503210U true CN203503210U (en) | 2014-03-26 |
Family
ID=50334170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320656184.8U Expired - Fee Related CN203503210U (en) | 2013-10-23 | 2013-10-23 | Injector-contained atmospheric pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203503210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637378A (en) * | 2015-03-09 | 2015-05-20 | 江村 | Simple barometer |
-
2013
- 2013-10-23 CN CN201320656184.8U patent/CN203503210U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637378A (en) * | 2015-03-09 | 2015-05-20 | 江村 | Simple barometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |