CN208256148U - A kind of physics force resolution demonstration teaching aid - Google Patents
A kind of physics force resolution demonstration teaching aid Download PDFInfo
- Publication number
- CN208256148U CN208256148U CN201721713589.5U CN201721713589U CN208256148U CN 208256148 U CN208256148 U CN 208256148U CN 201721713589 U CN201721713589 U CN 201721713589U CN 208256148 U CN208256148 U CN 208256148U
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- round tube
- shaft
- tube hole
- vertical plate
- column
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Abstract
A kind of physics force resolution demonstration teaching aid, is related to a kind of teaching aids of physics demonstrating.Two vertical plates are affixed by upright bar and pedestal, one of vertical plate is equipped with cross groove, cross groove is equipped with round tube hole and is placed with turning-bar together, another vertical plate is equipped with round tube hole two, shaft one end passes through round tube hole one and the affixed other end of turning-bar stretches out round tube hole two, the fixed baffle for being supported by pressure spring of the shaft other end, it is fixed among shaft among column by round tube hole three, hingedly there are two connecting-rod caps for facade before column, load cell is fixed in connecting-rod cap free end, two telescopic rod one end and the affixed other end of corresponding load cell are hinged, weighted spherical ball is mounted with two telescopic rod articulated positions, the shell of display is fixed on one of vertical plate, display shows the numerical value of two load cells.Column can carry out vertical and horizontal conversion, and two telescopic rod included angle adjustable angles realize the force resolution demonstration of a variety of situations.
Description
Technical field
The utility model relates to a kind of teaching aids of physics demonstrating, especially a kind of physics force resolution demonstration teaching aid.
Background technique
In senior middle school physics teaching, force resolution belongs to rudimentary knowledge, have certain abstractness, start study when be difficult by
Student understands that thoroughly therefore, teacher is often explained using teaching aid, is understood by intuitively demonstrating auxiliary student.
Authorization Notice No. CN202258037U, authorized announcement date on May 30th, 2012, entitled " force resolution teaching experiment on inclined-plane
Instrument " utility model patent, at present using relatively more in force resolution teaching, but its existing deficiency is can only to demonstrate
The case where weight self gravity is decomposed into the pressure to two sides inclined-plane, demonstrates force resolution is single, and practicability is not high.
Summary of the invention
The purpose of this utility model is to provide a kind of physics force resolution demonstration teaching aid, column can carry out it is vertical with it is horizontal
Conversion, two telescopic rod included angle adjustable angles realize the force resolution demonstration of a variety of situations, and practicability is higher.
Realize above-mentioned purpose, the utility model takes following technical proposals: a kind of physics force resolution demonstration teaching aid, including
Pedestal, turning-bar, shaft, column, weighted spherical ball, two vertical plates, two connecting-rod caps, two load cells and two are flexible
Bar, the two described vertical plates or so are juxtaposed on above the pedestal, and affixed by a upright bar and pedestal respectively,
In vertical plate outer surface be equipped with a cross groove, the cross groove inner bottom surface center is equipped with a round tube hole
One, a turning-bar is vertically placed in cross groove, another vertical plate is equipped with a round tube hole two, the round tube hole two
It is coaxially disposed with the round tube hole one, horizontal between two vertical plates to be equipped with shaft, described shaft one end passes through round tube hole one
Affixed with the turning-bar, the shaft other end stretches out round tube hole two and is arranged, and the shaft other end is fixed with baffle, the gear
Shaft side wall support between piece and another described vertical plate is set with pressure spring, and the column by-level is equipped with round tube hole
Three, and the shaft side wall middle position between two vertical plates is fixedly set in by the round tube hole three, before column on facade
Hingedly there are two connecting-rod caps for lower correspondence, and a load cell is fixed in two connecting-rod cap free ends respectively, described
Two telescopic rod one end it is affixed with the corresponding load cell respectively, two telescopic rod other ends are hinged, and described matches
Heavy ball is mounted by connecting rope and two telescopic rod articulated positions, is fixed with shell on one of vertical plate, described
Surface of shell is equipped with display, and the display is used to show the numerical value of two load cells.
Compared with prior art, the utility model has the beneficial effects that the demonstration mode multiplicity of the utility model, column can
Realize that weighted spherical ball hangs on column side when column vertical state vertically with horizontal conversion by pulling out and rotating turning-bar,
Weighted spherical ball is hung on above or below column when column horizontality, and two telescopic rods can pass through its angle angle of telescopic adjustment
Degree, realizes the force resolution demonstration of a variety of situations, and practicability is higher.
Detailed description of the invention
Fig. 1 is the overall structure axonometric drawing of the physics force resolution demonstration teaching aid of the utility model；
Fig. 2 is the A direction view of Fig. 1；
Fig. 3 is the circuit block diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, to the technical solution in the utility model carry out it is clear,
It being fully described by, it is clear that described embodiment is only a part of the embodiment of utility model, instead of all the embodiments,
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, fall within the protection scope of the utility model.
Specific embodiment 1: the utility model discloses a kind of demonstrations of physics force resolution to teach as shown in Fig. 1 ~ Fig. 3
Tool, including pedestal 2, turning-bar 4, shaft 5, column 7, the dynamometry of connecting-rod cap 8, two of vertical plate 1, two of weighted spherical ball 11, two pass
Sensor 9 and two telescopic rods 10, two vertical plates 1 or so are juxtaposed on 2 top of pedestal, and pass through respectively
A piece upright bar 3 and pedestal 2 are affixed, and one of 1 outer surface of vertical plate is equipped with a cross groove 1-1, and the cross is recessed
Slot 1-1 inner bottom surface center is equipped with a round tube hole one, is vertically placed with a turning-bar 4 in cross groove 1-1, another is vertical
Plate 1 is equipped with a round tube hole two, and the round tube hole two and the round tube hole one are coaxially disposed, horizontal between two vertical plates 1
Equipped with shaft 5, described 5 one end of shaft passes through round tube hole one and the turning-bar 4 is affixed, and it is logical that 5 other end of shaft stretches out circle
Hole two is arranged, and 5 other end of shaft is fixed with baffle 5-1, the axis between the baffle 5-1 and another described vertical plate 1
5 side wall support of bar is set with pressure spring 6, and 7 by-level of column is equipped with round tube hole three, and solid by the round tube hole three
Surely it is sleeved on the 5 side wall middle position of shaft between two vertical plates 1, corresponding above and below facade before column 7 hingedly there are two connecting rods
First 8, a load cell 9, two described 10 one end of telescopic rod point are fixed in two 8 free ends of connecting-rod cap respectively
Not affixed with the corresponding load cell 9, two 10 other ends of telescopic rod are hinged, and the weighted spherical ball 11 passes through connecting rope
It is mounted with two 10 articulated positions of telescopic rod, is fixed with shell 12,12 surface of shell on one of vertical plate 1
Equipped with display 12-1, the display 12-1 is used to show the numerical value of two load cells 9.
Specific embodiment 2: as shown in Fig. 1 ~ Fig. 3, present embodiment be specific embodiment one is made it is further
Illustrate, setting power amplifier, A/D converter, single-chip microcontroller and power supply, two force-measuring sensings in the shell 12
Device 9 is electrically connected with power amplifier, and the power amplifier is electrically connected with A/D converter, the A/D converter and monolithic
Mechatronics, the single-chip microcontroller are electrically connected with display 12-1, the power supply and monolithic mechatronics, thus described in realizing
Display 12-1 be used to show the numerical value of two load cells 9.
Specific embodiment 3: as shown in figure 3, present embodiment is made furtherly to specific embodiment two
Bright, the single-chip microcontroller is AT89C52 single-chip microcontroller.
Specific embodiment 4: as shown in Figure 1, 2, present embodiment is to specific embodiment one or specific embodiment
The spacing of two further explanations made, the column 7 and one of vertical plate 1 and the baffle 5-1 and institute
The spacing for another vertical plate 1 stated is all larger than the depth of the cross groove 1-1.
Specific embodiment 5: as shown in Figure 1, 2, present embodiment is to specific embodiment one or specific embodiment
Two further explanations made, telescopic rod 10 described in every include the outer tube being mutually socketed and inner tube, outer tube described in every
Tube wall is radially equipped with a threaded hole, is screwed with jackscrew in each threaded hole, inner tube described in every passes through institute
The jackscrew stated is fastenedly connected with corresponding outer tube.
Power amplifier amplifies the signal that two load cells 9 issue, and amplified signal is through A/D converter
Become digital signal and pass to single-chip microcontroller, shows numerical value on display 12-1 after being handled by single-chip microcontroller.
When the utility model is used, can be by pulling out and rotating turning-bar 4, by turning-bar 4, vertically or laterally card is placed on
In cross groove 1-1, the conversion of column 7 vertical state and horizontality is realized, when 7 vertical state of column, weighted spherical ball 11 is outstanding
It is hung on 7 side of column, when 7 horizontality of column, weighted spherical ball 11 is hung on above or below column 7, flexible by flexible two
Its included angle is adjusted in bar 10, in conjunction with display 12-1 two telescopic rods, the 10 stress numerical value shown and weighted spherical ball 11 itself
Gravity (measured in advance) realizes the force resolution demonstration of a variety of situations.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in the form of others dress body
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing the condition of equivalent for falling in claim
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of physics force resolution demonstration teaching aid, it is characterised in that: including pedestal (2), turning-bar (4), shaft (5), column
(7), weighted spherical ball (11), two vertical plates (1), two connecting-rod caps (8), two load cells (9) and two telescopic rods
(10), described two vertical plates (1) left and right is juxtaposed on above the pedestal (2), and respectively by a upright bar (3) with
Pedestal (2) is affixed, and one of vertical plate (1) outer surface is equipped with a cross groove (1-1), the cross groove (1-
1) inner bottom surface center is equipped with a round tube hole one, is vertically placed with a turning-bar (4) in cross groove (1-1), another
Vertical plate (1) is equipped with a round tube hole two, and the round tube hole two and the round tube hole one are coaxially disposed, two vertical plates (1) it
Between it is horizontal be equipped with shaft (5), the shaft (5) one end passes through round tube hole one and the turning-bar (4) is affixed, shaft (5)
The other end stretches out round tube hole two and is arranged, and shaft (5) other end is fixed with baffle (5-1), the baffle (5-1) and described
Shaft (5) side wall support between another vertical plate (1) is set with pressure spring (6), and it is logical that the column (7) by-level is equipped with circle
Hole three, and shaft (5) side wall middle position between two vertical plates (1), column are fixedly set in by the round tube hole three
(7) corresponding above and below facade before hingedly there are two connecting-rod cap (8), and two connecting-rod cap (8) free ends fix one respectively
A load cell (9), two described telescopic rod (10) one end are affixed with the corresponding load cell (9) respectively, and two
Root telescopic rod (10) other end is hinged, and the weighted spherical ball (11) is hung by connecting rope and two telescopic rod (10) articulated positions
It connecing, is fixed with shell (12) on one of vertical plate (1), the shell (12) surface is equipped with display (12-1),
The display (12-1) is used to show the numerical value of two load cells (9).
2. a kind of physics force resolution demonstration teaching aid according to claim 1, it is characterised in that: in the shell (12)
Power amplifier, A/D converter, single-chip microcontroller and power supply, two load cells (9) and power amplifier electricity are set
Connection, the power amplifier are electrically connected with A/D converter, the A/D converter and monolithic mechatronics, the list
Piece machine is electrically connected with display (12-1), the power supply and monolithic mechatronics, to realize the display (12-1)
For showing the numerical value of two load cells (9).
3. a kind of physics force resolution demonstration teaching aid according to claim 2, it is characterised in that: the single-chip microcontroller is
AT89C52 single-chip microcontroller.
4. a kind of physics force resolution demonstration teaching aid according to claim 1 or 2, it is characterised in that: the column (7)
It is big with the spacing and the baffle (5-1) and the spacing of another vertical plate (1) of one of vertical plate (1)
In the depth of the cross groove (1-1).
5. a kind of physics force resolution demonstration teaching aid according to claim 1 or 2, it is characterised in that: stretched described in every
Contracting bar (10) includes the outer tube being mutually socketed and inner tube, and outer tube wall described in every is radially equipped with a threaded hole, often
It is screwed with jackscrew in a threaded hole, inner tube described in every is fastenedly connected by the jackscrew with corresponding outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721713589.5U CN208256148U (en) | 2017-12-11 | 2017-12-11 | A kind of physics force resolution demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721713589.5U CN208256148U (en) | 2017-12-11 | 2017-12-11 | A kind of physics force resolution demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208256148U true CN208256148U (en) | 2018-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721713589.5U Expired - Fee Related CN208256148U (en) | 2017-12-11 | 2017-12-11 | A kind of physics force resolution demonstration teaching aid |
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| Country | Link |
|---|---|
| CN (1) | CN208256148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503450A (en) * | 2020-04-17 | 2020-08-07 | 歌尔微电子有限公司 | Positioning mechanism |
-
2017
- 2017-12-11 CN CN201721713589.5U patent/CN208256148U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503450A (en) * | 2020-04-17 | 2020-08-07 | 歌尔微电子有限公司 | Positioning mechanism |
| CN111503450B (en) * | 2020-04-17 | 2022-02-25 | 歌尔微电子有限公司 | Positioning mechanism |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20191211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |