CN207008921U - A kind of instructional device of physical and mechanical experiment - Google Patents
A kind of instructional device of physical and mechanical experiment Download PDFInfo
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- CN207008921U CN207008921U CN201720449868.9U CN201720449868U CN207008921U CN 207008921 U CN207008921 U CN 207008921U CN 201720449868 U CN201720449868 U CN 201720449868U CN 207008921 U CN207008921 U CN 207008921U
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- bottom plate
- physical
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Abstract
The utility model discloses a kind of instructional device of physical and mechanical experiment, including digital timer, battery, interior bar, fixture block, switch, outer bar, universal wheel, bottom plate, groove, neck, control experiment device, experimental provision, shield bars, electromagnet, sliding block, photogate, drawstring, support bar, guide wheel, hook code, tensiometer, guide rail, movable pulley, water tank, screw rod, scale, connecting plate and through hole；The beneficial effects of the utility model are can to carry out the Newton's second law experiment, Hooke's law experiment and buoyancy experiment of mechanics respectively, concentrate dynamics experimental device, simple to operate, conveniently moving, and using the contrast experiment of vertical type, it is easy to observation of students, becomes apparent from experiment effect；Dolly is set to be discharged without initial velocity using electromagnet when carrying out Newton's second law experiment, convenient and swift when reducing error caused by human factor, and using photoelectrometer, contrast experiment when guide rail tiltable is in order to balance frictional force and enter line tilt.
Description
Technical field
A kind of instructional device is the utility model is related to, specially a kind of instructional device of physical and mechanical experiment, belongs to thing
Manage experimental facilities applied technical field.
Background technology
Mechanics is the basis of physics, astronomy and many engineering sciences, machinery, building, spacecraft and ships etc. it is reasonable
Design all must be using classical mechanics as basic foundation, and mechanics is developed from simple mechanics principle, Mechanics Development to the present
It has had been built up, into the mansion of magnificence, can solve the problem that many problems in our living spaces, but also has explanation to conciliate never
The problem of, it is necessary to continue to explore, done one's bit for it, make it more perfect.
Mechanics be Middle School Physics must subject mesh, Experiments of Machanics show Mechanics Phenomenon to student, simulate what various mechanics occurred
State, Newton's second law, Hooke's law and buoyancy are the important compositions of Experiments of Machanics, and existing experimental facilities is using separation
Formula, complicated, equipment is easily chaotic, and when carrying out Newton's second law experiment, generally use paper slip gets timing ready, and error is big, right
The waste of paper is serious, manual releasing, human error be present；Therefore, a kind of physical and mechanical experiment is proposed regarding to the issue above
Instructional device.
Utility model content
The purpose of this utility model is that to solve the above problems and provides a kind of teaching of physical and mechanical experiment
Device.
The utility model is achieved through the following technical solutions above-mentioned purpose, a kind of teaching dress of physical and mechanical experiment
Put, including control experiment device, experimental provision and bottom plate, the bottom plate bottom is provided with universal wheel, and is provided with outer bar at the top of bottom plate；
Insertion interior bar inside the outer bar, and the outside of interior bar is provided with switch；The side of the outer bar is provided with battery, and outer bar is right therewith
The opposite side answered is provided with control experiment device and experimental provision；The experimental provision includes guide rail, and guide rail top is provided with electromagnetism
Iron；The electromagnet side is provided with sliding block, and sliding block top is provided with shield bars；The sliding block is drawn by drawstring connecting hook code
The side of rope is provided with photogate；Described guide rail one end connects guide rail by support bar, and support bar bottom is provided with pulling force
Meter；The bottom plate top is provided with water tank and scale, and water tank bottom is provided with movable pulley.
Preferably, the hook number of codes of the experimental provision is different from control experiment device, and guide rail is carved for a kind of outer surface
There is the guide rail of scale.
Preferably, the side of the sliding block uses irony structure, and sliding block is connected with electromagnet；The electromagnet with
Battery, switch are electrically connected with, and the photogate is electrically connected with digital timer.
Preferably, the interior bar is threadedly coupled with outer bar, and interior bar is hinged with guide rail one end bottom；One end of the guide rail
Provided with connecting plate, and connect plate surface and open up through hole；The through hole and the fixture block on interior bar surface are connected.
Preferably, the bottom plate top surface is provided with groove and neck, and inside grooves place water tank；Inside the neck
Engage scale, and fixed between scale and bottom plate by screw rod.
The beneficial effects of the utility model are：The instructional device of this kind of physical and mechanical experiment, mechanics can be carried out respectively
Newton's second law experiment, Hooke's law experiment and buoyancy experiment, concentrate dynamics experimental device, simple to operate, conveniently moving,
And using the contrast experiment of vertical type, it is easy to observation of students, becomes apparent from experiment effect；When carrying out Newton's second law experiment
Dolly is set to be discharged without initial velocity using electromagnet, it is convenient and swift when reducing error caused by human factor, and using photoelectrometer,
Contrast experiment when guide rail tiltable is in order to balance frictional force and enter line tilt, it is ensured that experimental simulation is comprehensive, is easy to student views
Understanding is examined, mitigates the burden of teacher significantly；There are good economic benefit and social benefit, be adapted to promote the use of.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model backplate surface structural representation；
Fig. 3 is the utility model interior bar and guide rail connection structure schematic diagram.
In figure：1st, digital timer, 2, battery, 3, interior bar, 31, fixture block, 4, switch, 5, outer bar, 6, universal wheel, 7, bottom
Plate, 71, groove, 72, neck, 8, control experiment device, 9, experimental provision, 90, shield bars, 91, electromagnet, 92, sliding block, 93,
Photogate, 94, drawstring, 95, support bar, 96, guide wheel, 97, hook code, 98, tensiometer, 99, guide rail, 10, movable pulley,
11st, water tank, 12, screw rod, 13, scale, 14, connecting plate, 141, through hole.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to shown in Fig. 1-3, a kind of instructional device of physical and mechanical experiment, including control experiment device 8, experiment dress
Put 9 and bottom plate 7, the bottom of bottom plate 7 is provided with universal wheel 6, when move integrally conveniently, the top of bottom plate 7 is provided with outer bar 5；Institute
The inside of outer bar 5 insertion interior bar 3 is stated, height is convenient for and adjusts, the outside of the interior bar 3 is provided with switch 4；The one of the outer bar 5
Side is provided with battery 2, and the 5 corresponding opposite side of outer bar is provided with control experiment device 8 and experimental provision 9, parallel up and down
Control experiment device 8 and experimental provision 9 are easy to student viewing to contrast；The experimental provision 9 includes guide rail 99, and the guide rail 99 pushes up
End is provided with electromagnet 91；The side of electromagnet 91 is provided with sliding block 92, and the top of sliding block 92 is provided with shield bars 90；The sliding block
92 are provided with photogate 93 by the connecting hook code 97 of drawstring 94, the side of the drawstring 94；Described one end of guide rail 99 passes through
Support bar 95 connects guide rail 96, and the bottom of support bar 95 is provided with tensiometer 98；The top of bottom plate 7 is provided with water tank 11 and scale
13, the bottom of water tank 11 is provided with movable pulley 10.
As a kind of technical optimization scheme of the present utility model, the quantity of hook code 97 of the experimental provision 9 and control experiment
Device 8 is different, and guide rail 99 is the guide rail 99 that scale is carved with a kind of outer surface, can carry out control experiment, up and down parallel pair
According to the facts testing is easy to student viewing to contrast.
As a kind of technical optimization scheme of the present utility model, the side of the sliding block 92 uses irony structure, and sliding block
92 are connected with electromagnet 91；The electromagnet 91 is electrically connected with battery 2, switch 4, and the photogate 93 is electrical
Digital timer 1 is connected, is convenient for the metering of time, accurately completes Newton's second law experiment.
As a kind of technical optimization scheme of the present utility model, the interior bar 3 is threadedly coupled with outer bar 5, and interior bar 3 is with leading
One end bottom of rail 99 is hinged；One end of the guide rail 99 is provided with connecting plate 14, and the surface of connecting plate 14 opens up through hole 141；It is described
Through hole 141 and the fixture block 31 on the surface of interior bar 3 are connected, and the adjustment of the angle of guide rail 99 can be achieved, be convenient for different experiments
Or balance frictional force.
As a kind of technical optimization scheme of the present utility model, the top surface of bottom plate 7 is provided with groove 71 and neck 72,
And water tank 11 is placed in the inside of groove 71；The inside of the neck 72 engaging scale 13, and pass through screw rod 12 between scale 13 and bottom plate 7
It is fixed, the related measurement of vertical direction can be carried out, is easy to complete Hooke's law experiment and buoyancy experiment.
When in use, the instructional device of this kind of physical and mechanical experiment is carrying out the reality of Newton's second law to the utility model
When testing, it can be powered by electromagnet 91 and be connected with sliding block 92, is positioned at control experiment device 8 different from experimental provision 9
Hook code 97, when experiment connection is completed, by switching the electric power between 4 tripping magnets 91 and sliding block 92, make sliding block 92 without first
Speed is discharged, and by recording the time by digital timer 1 during two photogates 93, two are read by the scale of guide rail 99
The distance between individual photogate 93, so as to experimental verification Newton's second law, it can tilt guide rail 99 if necessary, pass through
Fixture block 31 snaps onto the inside of through hole 141 and realized, to balance frictional force；, only need to be in tensiometer 98 when carrying out Hooke's law experiment
Under hang up spring, scale 13 is slided into by tensiometer 98, in spring bottom end connecting hook code 97, passes through scale 13 and reads spring
The reading of deformation quantity and tensiometer 98 carries out checking Hooke's law；When carrying out buoyancy experiment, the inside of water tank 11 need to only be injected
Water, the bottom of tensiometer 98 is pushed to, hangs up hook code 97, observed in water and the reading of tensiometer 98 is tested during not in water
Card.
Wherein photogate 93 uses 81M/US 1011, is the sensor for being used as detecting element by photoelectric cell,
It is first converted into measured change the change of optical signal, then further converts optical signals into electricity by photoelectric cell
Signal, the digital timer 1 use GSX-J0201, when record by the time between two photogates 93.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of instructional device of physical and mechanical experiment, including control experiment device (8), experimental provision (9) and bottom plate (7),
It is characterized in that：Bottom plate (7) bottom is provided with universal wheel (6), and is provided with outer bar (5) at the top of bottom plate (7)；The outer bar (5)
Inside insertion interior bar (3), and the outside of interior bar (3) is provided with switch (4)；The side of the outer bar (5) is provided with battery (2), and outside
Bar (5) corresponding opposite side is provided with control experiment device (8) and experimental provision (9)；The experimental provision (9) includes guide rail
(99), and guide rail (99) top is provided with electromagnet (91)；Electromagnet (91) side is provided with sliding block (92), and sliding block (92) pushes up
End is provided with shield bars (90)；The sliding block (92) is by drawstring (94) connecting hook code (97), and the side of drawstring (94) is provided with light
Electric switch sensor (93)；Described guide rail (99) one end connects guide rail (96) by support bar (95), and support bar (95) bottom is set
There is tensiometer (98)；Bottom plate (7) top is provided with water tank (11) and scale (13), and water tank (11) bottom is provided with movable pulley
(10)。
A kind of 2. instructional device of physical and mechanical experiment according to claim 1, it is characterised in that：The experimental provision
(9) hook code (97) quantity is different from control experiment device (8), and guide rail (99) is the guide rail that scale is carved with a kind of outer surface
(99)。
A kind of 3. instructional device of physical and mechanical experiment according to claim 1, it is characterised in that：The sliding block (92)
Side use irony structure, and sliding block (92) is connected with electromagnet (91)；The electromagnet (91) and battery (2), open
Close (4) to be electrically connected with, the photogate (93) is electrically connected with digital timer (1).
A kind of 4. instructional device of physical and mechanical experiment according to claim 1, it is characterised in that：The interior bar (3)
It is threadedly coupled with outer bar (5), and interior bar (3) is hinged with guide rail (99) one end bottom；One end of the guide rail (99) is provided with connection
Plate (14), and connecting plate (14) surface opens up through hole (141)；The through hole (141) and the fixture block (31) on interior bar (3) surface coordinate
Connection.
A kind of 5. instructional device of physical and mechanical experiment according to claim 1, it is characterised in that：The bottom plate (7)
Top surface is provided with groove (71) and neck (72), and water tank (11) is placed inside groove (71)；Block inside the neck (72)
Scale (13) is closed, and it is fixed by screw rod (12) between scale (13) and bottom plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720449868.9U CN207008921U (en) | 2017-04-26 | 2017-04-26 | A kind of instructional device of physical and mechanical experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720449868.9U CN207008921U (en) | 2017-04-26 | 2017-04-26 | A kind of instructional device of physical and mechanical experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207008921U true CN207008921U (en) | 2018-02-13 |
Family
ID=61443556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720449868.9U Expired - Fee Related CN207008921U (en) | 2017-04-26 | 2017-04-26 | A kind of instructional device of physical and mechanical experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207008921U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071170A (en) * | 2018-11-13 | 2020-12-11 | 施天霖 | Testing device for mechanics experiment |
| CN113129709A (en) * | 2020-01-15 | 2021-07-16 | 深圳市跨一科技有限公司 | Physical experiment mechanics slider |
-
2017
- 2017-04-26 CN CN201720449868.9U patent/CN207008921U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071170A (en) * | 2018-11-13 | 2020-12-11 | 施天霖 | Testing device for mechanics experiment |
| CN112071170B (en) * | 2018-11-13 | 2022-05-13 | 宣城慧哲生产力促进中心有限公司 | Testing device for mechanics experiment |
| CN113129709A (en) * | 2020-01-15 | 2021-07-16 | 深圳市跨一科技有限公司 | Physical experiment mechanics slider |
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| 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: 20180213 Termination date: 20190426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |