CN203397569U - Experiment instrument of Boyle's law - Google Patents
Experiment instrument of Boyle's law Download PDFInfo
- Publication number
- CN203397569U CN203397569U CN201320539762.XU CN201320539762U CN203397569U CN 203397569 U CN203397569 U CN 203397569U CN 201320539762 U CN201320539762 U CN 201320539762U CN 203397569 U CN203397569 U CN 203397569U
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- China
- Prior art keywords
- support
- piston
- piston cylinder
- piston rod
- experiment instrument
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Abstract
The utility model relates to an experiment instrument of Boyle's law, and belongs to the field of physics teaching aids. The experiment instrument of Boyle's law includes a first support for supporting a piston rod, and a second support for supporting a piston cylinder, wherein the first support is fixed at an opposite position of the second support; a first through hole is disposed on the first support, a nut is mounted in the first through hole, and the piston rod, which is a screw piston rod goes through threads of the nut, is fixed on the first support; and the piston rod, the piston cylinder, and a piston head are concentric. With the experiment instrument of Boyle's law, the problem that the position of a piston cannot be fixed accurately in a traditional experiment instrument is solved, by fixing the piston cylinder and the piston rod on the support, and back and forth movement of the piston is achieved though rotation and telescoping of the screw piston rod and the nut fixed on the support, the structure formed in such a way has certain level of self-locking ability, so that fineness of an experiment is increased, and operation difficulty for an operator is reduced.
Description
Technical field
The utility model relates to physical teaching aid, is specifically related to a kind of Boyle law experiment instrument.
Background technology
Boyle law, and " quantitative gas in closed container, under constant temperature, the pressure of gas and the volume relation that is inversely proportional to." in traditional education experiment; the normally used instrument of operator is that aperture is opened in one end; the piston cylinder of the hollow that the other end is homogeneous diameter; on piston cylinder, mark corresponding volume size; it also comprises a piston, and piston head can insert piston cylinder inwall, and airtight air and moving along piston cylinder length direction; the aperture on piston cylinder can be sealed, and placement force sensor.In this experiment in middle school, by artificial pushing piston, carry out pressurized air, air compressed when more, reason due to staff and muscle, be difficult to keep again the larger power of output consistently, so after being more compressed to, more difficultly shift piston onto accurately assigned address, be difficult to reading, this can impact the precision of experiment.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Boyle law experiment instrument, and it can guarantee when piston cylinder inner air pressure is large still can shift piston head onto assigned address exactly.
For addressing the above problem, the technical scheme that the utility model adopts is as follows:
An experiment instrument, comprise surperficial graduated piston cylinder, piston rod, the piston head being fixedly connected with one end of piston rod, be fixedly connected on the piston rod other end push away seat and for measuring the pressure transducer of pressure in piston cylinder; Described piston head is placed in piston cylinder, described in push away seat be placed in outside piston cylinder; It also comprises for the first support of support piston bar with for the second support of support piston cylinder; The relative position of described the first support and the second support is fixed; On described the first support, be provided with one first through hole, a nut is installed in the first through hole, described piston rod is screw-plunger bar, and it is fixed on the first support through nut screw thread; Described piston rod, piston cylinder and piston head are coaxial.
Preferably, piston cylinder and the second support are detachably installed.
Preferably, the second support is provided with the second through hole, and piston cylinder is arranged on the second support through the second through hole.
Preferably, the second support is provided with two, and it is separately positioned on the two ends of piston cylinder.
Preferably, the first support and the second support are fixedly mounted on same base plate.
Compared to existing technology, the beneficial effects of the utility model are:
The utility model is fixed on piston cylinder and piston rod in experiment on support, seesawing of piston realized by mutual rotary extension between nut fixing on screw-plunger bar and support simultaneously, because this structure has certain self-lock ability, can solve the accurately problem of fixed piston head position of traditional experiment instrument, can increase the fineness of experiment, reduce operator's operation easier.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Boyle law experiment instrument of the present utility model;
Fig. 2 is axial, cross-sectional view of the present utility model;
Wherein: 1, push away seat; 2, piston rod; 3, the first support; 31, the first through hole; 4, piston cylinder; 5, the second support; 6, piston head; 7, base plate.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
An experiment instrument, comprise surperficial graduated piston cylinder 4, piston rod 2, the piston head 6 being fixedly connected with one end of piston rod 2, be fixedly connected on piston rod 2 other ends push away seat 1 and for measuring the pressure transducer of piston cylinder 4 interior pressure; Piston head 6 is placed in piston cylinder 4, pushes away seat 1 and is placed in outside piston cylinder 4; It also comprises for the first support 3 of support piston bar 2 with for the second support 5 of support piston cylinder 4; The relative position of the first support 3 and the second support 5 is fixed; On the first support 3, be provided with one first through hole 31, in the first through hole 31, a nut be installed, piston rod 2 is screw-plunger bar, and it is fixed on the first support 3 through nut screw thread; Piston rod 2, piston cylinder 4 and piston head 6 are coaxial.Because piston rod 2 is threaded piston rod, there is auto-lock function, twist relatively easily, so can accurately shift piston head 6 onto assigned address, can avoid the reacting force after air compressing.
Piston cylinder 4 and the second support 5 are detachably installed, and as a kind of preferred embodiment, on the second support 5, are provided with the second through hole, and piston cylinder 4 is arranged on the second support 5 through the second through hole.When making to mount and dismount piston cylinder 4, this kind of mounting means only piston cylinder 4 need to be passed to the second through hole, and easy to operate.
For improving the stability of piston cylinder 4, the second support 5 is provided with two, and it is separately positioned on the two ends of piston cylinder 4.
The first support 3 and the second support 5 are fixedly mounted on same base plate 7 simultaneously, thereby can fix first relative position that adds the 3 and second support 5, and when guaranteeing rotary-piston bar 2, only the position of piston cylinder 4 is fixed.
The principle of work of experiment instrument of the present utility model is:
When needs are during to piston cylinder 4 interior gas boosting, only need the aperture of Air-tight piston cylinder 4 front ends, at the built-in pressure transducer of this confined space, by clockwise rotating, push away seat 1, give 6 one power along piston cylinder 4 length directions of piston, because piston cylinder 4 and piston 6 form hermetic seal, thereby give gas boosting; Otherwise, when needs reduce pressure to piston cylinder 4, rotate counterclockwise and push away seat 1, to gas, reduce pressure.
Piston cylinder 4 front ends can be established valve, open where necessary pressure release.
The use operation of experiment instrument of the present utility model is as follows:
If piston 6 place's scales are 90ml while starting, give gas boosting, clockwise rotate and push away seat 1, piston 6 is pushed into scale 60ml place, record the pressure data that sensor senses; Clockwise rotate again and push away seat 1, piston 6 is pushed into scale 30ml place, record data.To gas decompression, rotate counterclockwise and push away seat 1, piston 6 is pulled to scale 60ml place, record data; Rotate counterclockwise again and push away seat 1, piston 6 is pulled to scale 90ml place, record data.Last force value and the gas bulking value sensing according to sensor set up coordinate, obtains the quantitative gas in closed container, and under constant temperature, the pressure of gas and the volume relation that is inversely proportional to, has verified Boyle law.
Above-mentioned embodiment is only preferred implementation of the present utility model; can not limit with this scope of the utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.
Claims (5)
1. a Boyle law experiment instrument, comprise surperficial graduated piston cylinder (4), piston rod (2), the piston head (6) being fixedly connected with one end of piston rod (2), be fixedly connected on piston rod (2) other end push away seat (1) and for measuring the pressure transducer of the interior pressure of piston cylinder (4); Described piston head (6) is placed in piston cylinder (4), described in push away seat (1) be placed in outside piston cylinder (4); It is characterized in that: it also comprises for first support (3) of support piston bar (2) with for second support (5) of support piston cylinder (4); Described the first support (3) is fixed with the relative position of the second support (5); On described the first support (3), be provided with one first through hole (31), in the first through hole (31), a nut be installed, described piston rod (2) is screw-plunger bar, and it is fixed on the first support (3) through nut screw thread; Described piston rod (2), piston cylinder (4) and piston head (6) are coaxial.
2. a kind of Boyle law experiment instrument as claimed in claim 1, is characterized in that: described piston cylinder (4) is detachably installed with the second support (5).
3. a kind of Boyle law experiment instrument as claimed in claim 1, is characterized in that: described the second support (5) is provided with the second through hole, and piston cylinder (4) is arranged on the second support (5) through the second through hole.
4. a kind of Boyle law experiment instrument as claimed in claim 1, is characterized in that: described the second support (5) is provided with two, and it is separately positioned on the two ends of piston cylinder (4).
5. a kind of Boyle law experiment instrument as claimed in claim 1, is characterized in that: the first support (3) and the second support (5) are fixedly mounted on same base plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320539762.XU CN203397569U (en) | 2013-08-30 | 2013-08-30 | Experiment instrument of Boyle's law |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320539762.XU CN203397569U (en) | 2013-08-30 | 2013-08-30 | Experiment instrument of Boyle's law |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203397569U true CN203397569U (en) | 2014-01-15 |
Family
ID=49909087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320539762.XU Expired - Fee Related CN203397569U (en) | 2013-08-30 | 2013-08-30 | Experiment instrument of Boyle's law |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203397569U (en) |
-
2013
- 2013-08-30 CN CN201320539762.XU patent/CN203397569U/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 | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Longgang District of Shenzhen City, Guangdong province 518000 Bantian street gang snow road No. 2018, Cheonan cloud Valley an industrial park building 3 floor B block 21 unit 2103 Patentee after: Shenzhen Labplus Science and Education Culture Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Baoan District Longhua streets Hua Ning Road new Wai Industrial Zone second fifth three or four floor Patentee before: Shenzhen Seneasy Industrial Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20200830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |