CN107705678A - A kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid - Google Patents
A kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid Download PDFInfo
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- CN107705678A CN107705678A CN201711172662.7A CN201711172662A CN107705678A CN 107705678 A CN107705678 A CN 107705678A CN 201711172662 A CN201711172662 A CN 201711172662A CN 107705678 A CN107705678 A CN 107705678A
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- boiling point
- middle school
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/16—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for science of heat
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention provides a kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid；Including fix bar and base；The fix bar is provided with four, and its lower end is arranged on base upper surface；No.1 fixed block is provided with the outside of fix bar upper end；The No.1 fixed block and No.1 fixed plate are welded as a whole；Fixing groove is offered in the No.1 fixed plate；Pressure gauge, thermometer and airway tube are fixed with the fixing groove；The thermometer is fixed in flask by joint for sealing connecting；The flask is arranged on asbestos gauge upper surface；The asbestos gauge is embedded in the middle part of No. two fixed plates；Described No. two fixed plate No.2 contiguous blocks are welded as a whole；Fixing axle is installed inside No. two contiguous blocks；Rotor plate is provided with by bearing in the fixing axle；Alcolhol burner fixed seat is provided with immediately below the rotor plate；The present invention is simple in construction, easy to use, and whole device sets four fix bars, different experiments can be carried out, in order to improve the universality of device.
Description
Technical field
The present invention relates to teaching aid field, specifically a kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid.
Background technology
Students aid in teaching aid and experimental provision when learning book knowledge, the understanding to deepening knowledge
Greatly helped with grasping to have, especially for the student of the first contacts study relevant knowledge such as boiling point and pressure relation,
In-class experiment device is very necessary.And in existing teaching, just lack such in-class experiment device, otherwise teacher is complete
Imparted knowledge to students entirely by book knowledge, otherwise some nonstandard Self-made Realias oneself are made to help student to understand boiling point and pressure
The knowledge such as strong relation, the either teaching purpose of the reliability of teaching aid and reality all do not reach preferable effect.
The content of the invention
It is an object of the invention to provide a kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid；Including fix bar and base；The fix bar is provided with
Four, and its lower end is arranged on base upper surface；No.1 fixed block is provided with the outside of fix bar upper end；The No.1 fixed block and
No.1 fixed plate is welded as a whole；Fixing groove is offered in the No.1 fixed plate；The fixing groove is made up of elastomeric material, and
Pressure gauge, thermometer and airway tube are fixed with thereon；The thermometer is provided with two, and it is fixed on by joint for sealing connecting
In flask；The flask is provided with two, and it is arranged on asbestos gauge upper surface；Flask upper end is provided with three sealed connections
Head；The asbestos gauge is provided with two, and it is embedded in the middle part of No. two fixed plates；No. two fixed plates are provided with two, and
Its one end and No. two contiguous blocks are welded as a whole；No. two contiguous blocks are fixed on outside fix bar by bolt and fastener
Side, and fixing axle is installed inside it；Rotor plate is provided with by bearing in the fixing axle；The rotor plate is provided with two
It is individual, and electric heating element is installed inside it；Alcolhol burner fixed seat is provided with immediately below rotor plate；The alcolhol burner fixed seat upper end
It is provided with one layer of slipmat；Alcolhol burner fixed seat lower end is provided with electric expansion bar；The airway tube is provided with two, and one
End is fixed in flask by joint for sealing connecting, and the other end is through clamp connection at the gas outlet of syringe；The syringe is set
There are two, and it is symmetrically mounted on base upper surface by base upper surface axis；Syringe is internally provided with piston；The work
Push rod is installed beyond the Great Wall；The push rod is provided with two, is separately fixed in two syringes, and its length is different；Push rod one end
On piston, the other end and rotating bar are welded as a whole；The rotating bar is threadedly secured in fixed mount, and its end
It is provided with and comes about at point；Base lower end is provided with roller.
As the further scheme of the present invention：The No.1 fixed block is provided with two, and it is bolted on admittedly
In fixed pole 1；The bolt has been threadably secured fastener.
As the further scheme of the present invention：The pressure gauge upper end is fixed in fixing groove, and lower end passes through sealed connection
Head is fixed in flask.
As the further scheme of the present invention：No. two dead plate upper ends are provided with anti-explosion cover；The anti-explosion cover is set
On the outside of flask, and its lower end is bolted on No. two fixed plate upper surfaces.
As the further scheme of the present invention：The electric expansion bar is provided with four, and its lower end is arranged on base
Surface, movable end are bolted on alcolhol burner fixed seat lower surface.
As the further scheme of the present invention：The clip is provided with multiple, and it is bolted on outside fix bar
Side.
As further scheme of the invention：The roller is provided with four, and it is arranged in fixing axle；It is described solid
Dead axle is provided with six, is separately mounted in the middle part of No. two contiguous block inside lower ends and on base lower end.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention is simple in construction, and easy to use, whole device is symmetrical arranged, and can observe the reaction feelings in same time
Condition, strict control may influence the variable of experimental result；Anti-explosion cover is set on the outside of flask, can be prevented because flask over-heating
Burst, influence the safety of teacher and classmate；Electric heating element and the dual setting of alcolhol burner fixed seat, can be such that experimentation more protects
Danger, prevent alcolhol burner from having more than is needed and can not occur to the situation that device is powered；Alcolhol burner fixed seat lower end sets electric expansion bar,
The alcolhol burner of different size can be placed；Whole device sets four fix bars, different experiments can be carried out, in order to improve
The universality of device；The push rod of different length is set in two syringes, the pressure in two flasks can be controlled different, can be with shape
Into control experiment, speed of experiment may also speed up.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid.
Fig. 2 is the structural representation that a kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid are overlooked.
Fig. 3 is the structural representation that a kind of senior middle school physics teaching boiling point connects with rotor plate in pressure intensity testing teaching aid.
Fig. 4 is the structural representation that No.1 fixed plate is overlooked in a kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid.
In figure：1- fix bars, 2- bases, 3- No.1 fixed blocks, 4- bolts, 5- No.1 fixed plates, No. bis- fixed blocks of 6-, 7-
Asbestos gauge, 8- fixing axles, 9- rotor plates, 10- slipmat, 11- alcolhol burner fixed seats, 12- electric expansion bars, 13- pressure gauges,
14- thermometers, 15- joint for sealing connecting, 16- flasks, 17- anti-explosion covers, 18- fasteners, No. bis- fixed plates of 19-, 20- electric heating member
Part, 21- rollers, 22- airway tubes, 23- come about, 24- fixed mounts, 25- syringes, 26- clips, 27- fixing grooves, 28- rotating bars,
29- pistons, 30- push rods.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Refer to Fig. 1-3, a kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid；Including fix bar 1 and base 2；Institute
State fix bar 1 and be provided with four, and its lower end is arranged on the upper surface of base 2；No.1 fixed block is provided with the outside of the upper end of fix bar 1
3；The No.1 fixed block 3 is provided with two, and it is fixed in fix bar 1 by bolt 4；The bolt 4 is consolidated by screw thread
Surely there is fastener 18, in order to which No.1 fixed block 3 is fixed in fix bar 1；No.1 fixed block 3 and No.1 fixed plate 5 are welded
It is connected in one；Fixing groove 27 is offered in the No.1 fixed plate 5, in order to the various detector machines of fixation；The fixing groove 27
It is made up of elastomeric material, and is fixed with pressure gauge 13, thermometer 14 and airway tube 22 thereon；The upper end of pressure gauge 13 is fixed on
In fixing groove 27, lower end is fixed in flask 16 by joint for sealing connecting 15；The thermometer 14 is provided with two, and it passes through
Joint for sealing connecting 15 is fixed in flask 16；Flask 16 is provided with two, and it is arranged on the upper surface of asbestos gauge 7；On flask 16
End is provided with three joint for sealing connecting 15；The asbestos gauge 7 is provided with two, and it is embedded in No. two middle parts of fixed plate 19, with
It is easy to prevent flare from directly contacting with flask 16；No. two fixed plates 19 are provided with two, and its one end and No. two contiguous blocks 6
It is welded as a whole；No. two upper ends of fixed plate 19 are provided with anti-explosion cover 17；The anti-explosion cover 17 is arranged on the outside of flask 16, and under it
End is fixed on No. two upper surfaces of fixed plate 19 by bolt 4；No. two contiguous blocks 6 are fixed by bolt 4 and fastener 18
In the outside of fix bar 1, and fixing axle 8 is installed inside it；Rotor plate 9 is provided with by bearing in the fixing axle 8；Described turn
Dynamic plate 9 is provided with two, and electric heating element 20 is provided with inside it, and flask 16 is heated in order to provide electric heating；Rotate
Alcolhol burner fixed seat 11 is provided with immediately below plate 9；The upper end of alcolhol burner fixed seat 11 is provided with one layer of slipmat 10, in order to
Prevent alcolhol burner from sliding；The lower end of alcolhol burner fixed seat 11 is provided with electric expansion bar 12；The electric expansion bar 12 is set
There are four, and its lower end is arranged on the upper surface of base 2, movable end is fixed on the lower surface of alcolhol burner fixed seat 11 by bolt 4,
In order to drive alcolhol burner fixed seat 11 to move up and down；The airway tube 22 is provided with two, and its one end passes through sealed connection
First 15 are fixed in flask 16, and the other end is connected at the gas outlet of syringe 25 through clip 26, in order to by syringe 15
Gas is pushed in flask 16, for changing the air pressure in flask 16；The clip 26 is provided with multiple, and it passes through bolt 4
The outside of fix bar 1 is fixed on, in order to fixed airway tube 22；The syringe 25 is provided with two, and it passes through the upper surface of base 2
Axis is symmetrically mounted on the upper surface of base 2；Syringe 25 is internally provided with piston 29, in order to which the gas inside syringe 25 is led
Enter in flask 16；Push rod 30 is installed on the piston 29；The push rod 30 is provided with two, is separately fixed at two syringes 25
It is interior, and its length is different, in order to the pressure different to different flasks 16；The one end of push rod 30 is arranged on piston 29, the other end
It is welded as a whole with rotating bar 28；The rotating bar 28 is threadedly secured in fixed mount 24, and is provided with and is turned at its end points
Rudder 23, in order to drive rotating bar 28 to move；The lower end of base 2 is provided with roller 21, in order to drive whole device to move；It is described
Roller 21 is provided with four, and it is arranged in fixing axle 8；Fixing axle 8 is provided with six, is separately mounted to No. two contiguous blocks 6
In the middle part of inside lower end and on the lower end of base 1.
The present invention operation principle be：
In use, first toward the water poured into two flasks 16 as much, then by airway tube 22, pressure gauge 13 and temperature
Meter 14 is fixed on inside flask 16；By 23 rotation rotating bars 28 of coming about, so as to drive two push rods 30 to move, and then incite somebody to action
Piston 29 is pushed into syringe 25 and constantly goed deep into the bottom of syringe 25, so as to increase gas into flask 16, changes in flask 16
Air pressure；Then electric heating element 20 is started, electric heating element 20 is powered, and its internal resistance heating, can be heated to flask 16, so
Afterwards observe flask 16 inside boiling water when temperature be it is how many, also pressure when how much；If electric heating cannot be given during experiment
Element 20 is powered, then can heat flask 16 by alcolhol burner, and rotor plate 9 is turned on one side, then by wine around fixing axle 8
Smart lamp is placed in slipmat 10, is lighted alcolhol burner afterwards and is begun to warm up flask 16.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Make a variety of changes.
Claims (7)
1. a kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid；Including fix bar (1) and base (2)；Characterized in that, institute
State fix bar (1) and be provided with four, and its lower end is arranged on base (2) upper surface；No.1 is provided with the outside of fix bar (1) upper end
Fixed block (3)；The No.1 fixed block (3) and No.1 fixed plate (5) are welded as a whole；Opened up on the No.1 fixed plate (5)
There is fixing groove (27)；The fixing groove (27) is made up of elastomeric material, and be fixed with thereon pressure gauge (13), thermometer (14) and
Airway tube (22)；The thermometer (14) is provided with two, and it is fixed in flask (16) by joint for sealing connecting (15)；Institute
State flask (16) and be provided with two, and it is arranged on asbestos gauge (7) upper surface；Flask (16) upper end is provided with three sealed connections
Head (15)；The asbestos gauge (7) is provided with two, and it is embedded in the middle part of No. two fixed plates (19)；No. two fixed plates
(19) two are provided with, and its one end and No. two contiguous blocks (6) are welded as a whole；No. two contiguous blocks (6) pass through bolt (4)
It is fixed on fastener (18) on the outside of fix bar (1), and fixing axle (8) is installed inside it；Pass through on the fixing axle (8)
Bearing is provided with rotor plate (9)；The rotor plate (9) is provided with two, and electric heating element (20) is provided with inside it；Rotor plate
(9) alcolhol burner fixed seat (11) is provided with immediately below；Alcolhol burner fixed seat (11) upper end is provided with one layer of slipmat (10)；
Alcolhol burner fixed seat (11) lower end is provided with electric expansion bar (12)；The airway tube (22) is provided with two, and its one end is led to
Cross joint for sealing connecting (15) to be fixed in flask (16), the other end is connected at the gas outlet of syringe (25) through clip (26)；
The syringe (25) is provided with two, and it is symmetrically mounted on base (2) upper surface by base (2) upper surface axis；Pin
Cylinder (25) is internally provided with piston (29)；Push rod (30) is installed on the piston (29)；The push rod (30) is provided with two,
It is separately fixed in two syringes (25), and its length is different；Push rod (30) one end be arranged on piston (29) on, the other end and turn
Lever (28) is welded as a whole；The rotating bar (28) is threadedly secured in fixed mount (24), and is provided with its end points
Come about (23)；Base (2) lower end is provided with roller (21).
2. a kind of senior middle school physics teaching boiling point according to claim 1 and pressure intensity testing teaching aid, it is characterised in that described one
Number fixed block (3) is provided with two, and it is fixed in fix bar (1) by bolt (4)；The bolt (4) is consolidated by screw thread
Surely there is fastener (18).
3. a kind of senior middle school physics teaching boiling point according to claim 1 and pressure intensity testing teaching aid, it is characterised in that the pressure
Power meter (13) upper end is fixed in fixing groove (27), and lower end is fixed in flask (16) by joint for sealing connecting (15).
4. a kind of senior middle school physics teaching boiling point according to claim 1 and pressure intensity testing teaching aid, it is characterised in that described two
Number fixed plate (19) upper end is provided with anti-explosion cover (17)；The anti-explosion cover (17) is arranged on the outside of flask (16), and its lower end leads to
Cross bolt (4) and be fixed on No. two fixed plate (19) upper surfaces.
5. a kind of senior middle school physics teaching boiling point according to claim 1 and pressure intensity testing teaching aid, it is characterised in that the electricity
Dynamic expansion link (12) is provided with four, and its lower end is arranged on base (2) upper surface, and movable end is fixed on wine by bolt (4)
On smart lamp fixed seat (11) lower surface.
6. a kind of senior middle school physics teaching boiling point according to claim 1 and pressure intensity testing teaching aid, it is characterised in that the card
Hoop (26) is provided with multiple, and it is fixed on the outside of fix bar (1) by bolt (4).
7. a kind of senior middle school physics teaching boiling point according to claim 1 and pressure intensity testing teaching aid, it is characterised in that the rolling
Wheel (21) is provided with four, and it is arranged in fixing axle (8)；The fixing axle (8) is provided with six, is separately mounted to No. two
In the middle part of contiguous block (6) inside lower end and on base (1) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172662.7A CN107705678A (en) | 2017-11-22 | 2017-11-22 | A kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172662.7A CN107705678A (en) | 2017-11-22 | 2017-11-22 | A kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107705678A true CN107705678A (en) | 2018-02-16 |
Family
ID=61180632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711172662.7A Withdrawn CN107705678A (en) | 2017-11-22 | 2017-11-22 | A kind of senior middle school physics teaching boiling point and pressure intensity testing teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107705678A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036027A (en) * | 2018-08-22 | 2018-12-18 | 胡玮桐 | A kind of boiling point and pressure intensity testing heating device of high school physics |
-
2017
- 2017-11-22 CN CN201711172662.7A patent/CN107705678A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036027A (en) * | 2018-08-22 | 2018-12-18 | 胡玮桐 | A kind of boiling point and pressure intensity testing heating device of high school physics |
| CN109036027B (en) * | 2018-08-22 | 2021-03-30 | 胡玮桐 | Heating device for boiling point and pressure intensity experiments of high school physics |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180216 |
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| WW01 | Invention patent application withdrawn after publication |