CN203689770U - Moment balance experimental device used for teaching - Google Patents
Moment balance experimental device used for teaching Download PDFInfo
- Publication number
- CN203689770U CN203689770U CN201420078190.4U CN201420078190U CN203689770U CN 203689770 U CN203689770 U CN 203689770U CN 201420078190 U CN201420078190 U CN 201420078190U CN 203689770 U CN203689770 U CN 203689770U
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- CN
- China
- Prior art keywords
- chute
- support column
- slide block
- torsion bar
- slide groove
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Abstract
The utility model discloses a moment balance experimental device used for teaching. The device includes a balance-weight pedestal, a support post, a first slide groove, a torque rod, a rotary shaft, a ranging rod, a second slide groove, a slide block, a hook, an elastic rope, a hook ring, limit blocks and a horizontal correcting line. The support post is arranged in the center of the balance-weight pedestal. The first slide groove is arranged on the balance-weight pedestal. The support post is provided with a positioning hole. The torque rod is arranged on the support post through the rotary shaft. The horizontal correcting line is arranged on the support post. The center of the ranging rod is connected with the rotary shaft. The second slide groove is arranged in the bottom of the torque rod. The slide rod is arranged in the first slide groove and the second slide groove. The hook is connected with the second slide groove through a slide block. The elastic rope is connected with the first slide groove through the slide block. The hook ring is arranged on the elastic rope. The limit blocks are arranged on two ends of the first slide groove and the second slide groove. According to the utility model, the magnitude of force can be demonstrated directly through stretching of the elastic rope, so that a child can understand relations of force, direction and torque easily and put the knowledge into practical use. A weight can also be used for exert forces.
Description
Technical field
The utility model relates to a kind of experimental apparatus, relates in particular to a kind of teaching moment balance test device.
Background technology
In life, almost all need power all the time, equalising torque experiment can help child better to grasp the skill in life, in the equalising torque experimental provision of prior art, mostly carry out the application of force with spring balance or counterweight, the power of spring balance or counterweight learns by reading, concerning the even less child of pupil, numeral do not had to very definite concept, be not easy to understand, and counterweight is due to Action of Gravity Field, and the application of force can only straight down, cannot reach the object of experiment.
Utility model content
The purpose of this utility model: a kind of teaching moment balance test device is provided, is applicable to the teaching of primary school's living skill, to help student that the skill of equalising torque is applied in life.
To achieve these goals, the technical solution of the utility model is:
Moment balance test device for a kind of teaching, comprises counter weight base, support column, the first chute, torsion bar, rotating shaft, telemeter rod, the second chute, polylith slide block, multiple hook, many stretch cords, multiple shackle, polylith limited block and many rectification lines, described support column is vertically arranged on the central authorities of described counter weight base, and the first described chute is arranged on described counter weight base, is positioned at the both sides of described support column, described support column is provided with multiple pilot holes, and described multiple pilot holes are vertically arranged, described rotating shaft is inserted in described pilot hole, described torsion bar is arranged on described support column by described rotating shaft, described rectification line is separately positioned on described support column, be positioned at the top of described multiple pilot holes, the upper surface flush of described rectification line and described torsion bar, directly over the first chute described in described torsion bar is positioned at, the center of described telemeter rod is flexibly connected with described rotating shaft, and described torsion bar and telemeter rod rotate around described rotating shaft respectively, the second described chute is arranged on the bottom of described torsion bar, be positioned at the top of the first described chute, described polylith slide block is separately positioned on described the first chute and the second chute, described multiple hooks are flexibly connected with the second described chute by described polylith slide block, described hook and described slide block are along the second described chute synchronous slide, one end of many described stretch cords is flexibly connected with the first described chute by described polylith slide block, described many stretch cords and described slide block are along the first described chute synchronous slide, described multiple shackles are disposed on respectively on many described stretch cords, described polylith limited block is separately positioned on the first described chute and the two ends of the second chute, on described telemeter rod, be interval with many moment vertical reference lines, described moment vertical reference line is vertical with the bearing of trend of described telemeter rod, and the first described chute is provided with scale mark.
Moment balance test device for above-mentioned teaching, wherein, the front end of described counter weight base is provided with multiple counterweight grooves, in described counterweight groove, establishes counterweight.
Moment balance test device for above-mentioned teaching, wherein, the top of described support column is also provided with the stretch cord described in one or more, is interval with multiple described shackles on described stretch cord.
Moment balance test device for above-mentioned teaching, wherein, described support column is provided with one or more suckers, is positioned at the back of described support column.
The utility model can be more vivid by the stretching of stretch cord the size of displaying power, make child can be easier to understand the relation of power, direction and moment, and be applied in life, also can carry out the application of force by counterweight, be applicable to larger child, teaching efficiency is good, and precision is high.
Brief description of the drawings
Fig. 1 is the front view of the utility model teaching moment balance test device.
Fig. 2 is the partial enlarged drawing of the telemeter rod of the utility model teaching moment balance test device.
Embodiment
Further illustrate embodiment of the present utility model below in conjunction with accompanying drawing.
Refer to shown in accompanying drawing 1 and accompanying drawing 2, moment balance test device for a kind of teaching, comprises counter weight base 1, support column 2, the first chute 3, torsion bar 4, rotating shaft 5, telemeter rod 6, the second chute 7, polylith slide block 8, multiple hook 9, many stretch cords 10, multiple shackle 11, polylith limited block 12 and many rectification lines 13, described support column 2 is vertically arranged on the central authorities of described counter weight base 1, and the first described chute 3 is arranged on described counter weight base 1, is positioned at the both sides of described support column 2, described support column 2 is provided with multiple pilot holes 14, and described multiple pilot holes 14 are vertically arranged, described rotating shaft 5 is inserted in described pilot hole 14, described torsion bar 4 is arranged on described support column 2 by described rotating shaft 5, described rectification line 13 is separately positioned on described support column 2, be positioned at the top of described multiple pilot holes 14, the upper surface flush of described rectification line 13 and described torsion bar 4, directly over the first chute 3 described in described torsion bar 4 is positioned at, the center of described telemeter rod 6 is flexibly connected with described rotating shaft 5, and described torsion bar 4 and telemeter rod 6 rotate around described rotating shaft 5 respectively, the second described chute 7 is arranged on the bottom of described torsion bar 4, be positioned at the top of the first described chute 3, described polylith slide block 8 is separately positioned on described the first chute 3 and the second chute 7, described multiple hooks 9 are flexibly connected with the second described chute 7 by described polylith slide block 8, described hook 9 and described slide block 8 are along the second described chute 7 synchronous slides, one end of described many stretch cords 10 is flexibly connected with the first described chute 3 by described polylith slide block 8, described many stretch cords 10 and described slide block 8 are along the first described chute 3 synchronous slides, described multiple shackles 11 are disposed on respectively on described many stretch cords 10, described polylith limited block 12 is separately positioned on the first described chute 3 and the two ends of the second chute 7, on described telemeter rod 6, be interval with many moment vertical reference lines 15, described moment vertical reference line 15 is vertical with the bearing of trend of described telemeter rod 6, and the first described chute 3 is provided with scale mark 16.
Counter weight base 1 can keep the steady of whole device, torsion bar 4 can be arranged on any one pilot hole 14, before using, holding torque bar 4 flushes with rectification line 13, torsion bar 4 is horizontal, regulate the position of the slide block 8 on the first chute 3 and the second chute 7, select shackle 11 to be connected on hook 9, select different shackles 11, the elastic force difference of stretch cord 10, to linking up with 9 force direction and varying in size, the position of slide block 8 can be determined by telemeter rod 6 and scale mark 16, the slide block 8 position differences of support column 2 both sides, shackle 11 differences of selecting, finally reach the object of torsion bar 4 balances, can measure moment by telemeter rod 6, stretch cord 10 is vertical with the moment vertical reference line 15 on telemeter rod 6.
The front end of described counter weight base 1 is provided with multiple counterweight grooves 17, in described counterweight groove 17, establishes counterweight, also can use the counterweight application of force when experiment, is applicable to larger child.
The top of described support column 2 is also provided with the stretch cord 10 described in one or more, is interval with multiple described shackles 11 on described stretch cord 10, can apply power upwards to torsion bar 4, and the direction of exerting all one's strength does not have limitation.
Described support column 2 is provided with one or more suckers 18, is positioned at the back of described support column 2, and whole device can be adsorbed on the wall or on blackboard, is convenient to teaching and storage by sucker 18.
In sum, the size of the displaying power that the utility model can be more vivid by the stretching of stretch cord, makes child can be easier to understand the relation of power, direction and moment, and be applied in life, also can carry out the application of force by counterweight, be applicable to larger child, teaching efficiency is good, and precision is high.
Claims (4)
1. a moment balance test device for teaching, is characterized in that: comprise counter weight base, support column, the first chute, torsion bar, rotating shaft, telemeter rod, the second chute, polylith slide block, multiple hook, many stretch cords, multiple shackle, polylith limited block and many rectification lines, described support column is vertically arranged on the central authorities of described counter weight base, and the first described chute is arranged on described counter weight base, is positioned at the both sides of described support column, described support column is provided with multiple pilot holes, and described multiple pilot holes are vertically arranged, described rotating shaft is inserted in described pilot hole, described torsion bar is arranged on described support column by described rotating shaft, described rectification line is separately positioned on described support column, be positioned at the top of described multiple pilot holes, the upper surface flush of described rectification line and described torsion bar, directly over the first chute described in described torsion bar is positioned at, the center of described telemeter rod is flexibly connected with described rotating shaft, and described torsion bar and telemeter rod rotate around described rotating shaft respectively, the second described chute is arranged on the bottom of described torsion bar, be positioned at the top of the first described chute, described polylith slide block is separately positioned on described the first chute and the second chute, described multiple hooks are flexibly connected with the second described chute by described polylith slide block, described hook and described slide block are along the second described chute synchronous slide, one end of many described stretch cords is flexibly connected with the first described chute by described polylith slide block, described many stretch cords and described slide block are along the first described chute synchronous slide, described multiple shackles are disposed on respectively on many described stretch cords, described polylith limited block is separately positioned on the first described chute and the two ends of the second chute, on described telemeter rod, be interval with many moment vertical reference lines, described moment vertical reference line is vertical with the bearing of trend of described telemeter rod, and the first described chute is provided with scale mark.
2. moment balance test device for teaching according to claim 1, is characterized in that: the front end of described counter weight base is provided with multiple counterweight grooves, in described counterweight groove, establishes counterweight.
3. moment balance test device for teaching according to claim 1, is characterized in that: the top of described support column is also provided with the stretch cord described in one or more, is interval with multiple described shackles on described stretch cord.
4. moment balance test device for teaching according to claim 1, is characterized in that: described support column is provided with one or more suckers, is positioned at the back of described support column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420078190.4U CN203689770U (en) | 2014-02-24 | 2014-02-24 | Moment balance experimental device used for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420078190.4U CN203689770U (en) | 2014-02-24 | 2014-02-24 | Moment balance experimental device used for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203689770U true CN203689770U (en) | 2014-07-02 |
Family
ID=51011646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420078190.4U Expired - Fee Related CN203689770U (en) | 2014-02-24 | 2014-02-24 | Moment balance experimental device used for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203689770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111994769A (en) * | 2020-06-29 | 2020-11-27 | 武汉高德红外股份有限公司 | Pod balancing device and balancing method |
-
2014
- 2014-02-24 CN CN201420078190.4U patent/CN203689770U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111994769A (en) * | 2020-06-29 | 2020-11-27 | 武汉高德红外股份有限公司 | Pod balancing device and balancing method |
| CN111994769B (en) * | 2020-06-29 | 2023-03-28 | 武汉高德红外股份有限公司 | Pod balancing device and balancing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20150224 |
|
| EXPY | Termination of patent right or utility model |