CN209148449U - Elastic string maximum elongation measurer - Google Patents
Elastic string maximum elongation measurer Download PDFInfo
- Publication number
- CN209148449U CN209148449U CN201821951583.6U CN201821951583U CN209148449U CN 209148449 U CN209148449 U CN 209148449U CN 201821951583 U CN201821951583 U CN 201821951583U CN 209148449 U CN209148449 U CN 209148449U
- Authority
- CN
- China
- Prior art keywords
- guiding piece
- traction device
- elastic string
- guide groove
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of elastic string maximum elongation measurers, including pedestal, face is equipped with fixed block and guiding piece on the pedestal, guiding piece is corresponded on pedestal equipped with guiding piece guide groove, guiding piece guide groove is along the direction linear extension far from fixed block, guiding piece is fastened in guiding piece guide groove, guiding piece is slided along guiding piece guide groove, pedestal is equipped with drawing paper placing groove, drawing paper placing groove is arranged in parallel with guiding piece guide groove, guiding piece corresponds to drawing paper placing groove equipped with fixed link, the fixed link is located above the notch of drawing paper placing groove, fixed link is equipped with and sets a hole, this is set a hole and is arranged towards drawing paper placing groove.The entire deformation process of elastic string can be presented in the utility model intuitively for student, learn conducive to student and understand elastic deformation, and can observe directly the largest deformation amount of elastic string, and the elastic string for being suitable for different length is demonstrated.
Description
Technical field
The utility model relates to a kind of learning aid materials, and in particular to a kind of elastic string maximum elongation measurer.
Background technique
When middle school student learn " Hooke's law ", it is substantially the oral elaboration by teacher and some simple figures
Text, which explains, carries out rational learning, due to lacking teaching experiment, can not vividly intuitively impart knowledge to students for student, cause student to bullet
The coefficient of elasticity of property rope, amount of elastic deformation, the understanding of elastic limit deformation are more jerky.
So in progress " Hooke's law " study elastic force demonstration can be carried out, directly convenient for analysis and reason if there is a kind of
Coefficient of elasticity, amount of elastic deformation and the learning aid material of elastic limit deformation of solution elastic string are necessary, in this way
Just learning quality can be effectively improved, helps student to understand and applies " Hooke's law ".
Utility model content
In order to help student to understand elastic deformation process, convenient for measuring maximum flexibility deformation quantity, the utility model provides one
Kind elastic string maximum elongation measurer.
Technical solution is as follows:
A kind of elastic string maximum elongation measurer, key are: including pedestal, face is equipped with fixed block on the pedestal
And guiding piece, the guiding piece is corresponded on the pedestal equipped with guiding piece guide groove, the guiding piece guide groove is along far from described
The direction linear extension of fixed block, the guiding piece are fastened in the guiding piece guide groove, and the guiding piece is along the traction
The sliding of block guide groove；
The pedestal is equipped with drawing paper placing groove, and the drawing paper placing groove is arranged in parallel with guiding piece guide groove, described to lead
Draw block and correspond to the drawing paper placing groove equipped with fixed link, which is located above the notch of the drawing paper placing groove, described solid
Fixed pole is equipped with and sets a hole, this is set a hole and is arranged towards the drawing paper placing groove.
The effect of the program is: same elastic string is connected between fixed block and guiding piece, guiding piece is oriented to along traction
Slot slowly moves, and capable of making elastic string, deformation occurs, and fixed link is equipped with and sets a hole and can place paintbrush, places picture in drawing paper placing groove
Paper, when guiding piece is mobile, drawing paper can leave straight line with guiding piece movement on drawing paper, when elastic fracture of rope,
Stop mobile guiding piece, the length of the straight line on drawing paper is elastic string largest deformation amount.
Preferably, it is equipped with and leads far from one end of the fixed block close to the guiding piece guide groove on the pedestal
Leading-in device, the traction device and the guiding piece are connected by bracing wire, and the traction device pulls the guiding piece far from institute
State fixed block.
Preferably, traction device installation cavity, the traction device are equipped with far from the fixed block on the pedestal
It is mounted in the traction device installation cavity, the traction device includes rotation axis, and the both ends of the rotation axis pass through bearing respectively
It being mounted on the inner wall of the traction device installation cavity, the rotation axis is vertical with the extending direction of the guiding piece guide groove,
It is installed with reel in the rotation axis, the reel and the guiding piece face are arranged, the reel and the guiding piece
Between connected by the bracing wire.
The effect of above scheme is: traction device can be convenient for pulling traction device, by rotational traction device installation cavity
Rotation axis bracing wire is wound so that reel rotates, achieve the purpose that pull guiding piece, while guy winding is in reel
On be also convenient for discharging again, block reset will be drawn.
Preferably, the traction device further includes retarder, the retarder and the rotation axis connection.The program
Effect be: retarder can make rotation axis rotation relatively slow, guarantee that elastic string slowly extends, avoid pulling too fast, lead to bullet
Property rope moment disconnect, influence the deformation quantity result measured.
Preferably, coaxial sleeve is equipped with big transmission gear in the rotation axis, is equipped with rotation below the rotation axis
Bar, the both ends of the rotating bar pass through bearing respectively and are mounted on the inner wall of the traction device installation cavity, in the rotating bar
Be installed with small transmission gear, which engages with the big transmission gear, the big transmission gear, small transmission gear and
Rotating bar forms the retarder.
The effect of the program is: rotating small transmission gear when use, is passed by big transmission gear and small transmission gear engagement
It is dynamic, slow down the speed of reel rotation coiling, it is ensured that slow elasticity of elongation rope.
Preferably, the either end of the rotating bar is connected with hand-held turn after being pierced by the traction device installation cavity
Disk.The effect of the program is: hand-held turntable is convenient for manually controlling rotating bar rotation.
The utility model has the advantages that bullet intuitively can be presented for student using the elastic string maximum elongation measurer of the utility model
Property rope entire deformation process, learn conducive to student and understand elastic deformation, and the maximum shape of elastic string can be observed directly
Variable, and the elastic string for being suitable for different length is demonstrated.
Detailed description of the invention
Fig. 1 is the positive structure schematic of the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the cross-sectional view of Fig. 1；
Fig. 4 is the partial sectional view of Fig. 2.
Specific embodiment
Below with reference to embodiment and attached drawing, the utility model is described in further detail.
Embodiment:
As shown in attached drawing 1-4, a kind of elastic string maximum elongation measurer, including pedestal 1, face is equipped on the pedestal 1
Be respectively equipped with elastic string hook on fixed block 2 and guiding piece 3, fixed block 2 and the opposite face of guiding piece 3, when use elasticity to be measured
Rope both ends are hung on corresponding elastic string hook, guiding piece 3 are corresponded on pedestal 1 equipped with guiding piece guide groove 4, guiding piece is led
To slot 4 along the direction linear extension far from fixed block 2, guiding piece 3 is fastened in guiding piece guide groove 4, and guiding piece 3 is along guiding piece
Guide groove 4 slides；
The pedestal 1 is equipped with drawing paper placing groove 5, and the drawing paper placing groove 5 is arranged in parallel with guiding piece guide groove 4, institute
It states the corresponding drawing paper placing groove 5 of guiding piece 3 and is equipped with fixed link 6, which is located on the notch of the drawing paper placing groove 5
Side, the fixed link 6 are equipped with and set a hole a, this is set a hole a and is arranged towards the drawing paper placing groove 5.
Traction device, institute are equipped with far from one end of the fixed block 2 close to the guiding piece guide groove 4 on the pedestal 1
It states traction device to connect with the guiding piece 3 by bracing wire, the traction device pulls the guiding piece 3 far from the fixed block
2, traction device installation cavity is equipped with far from the fixed block 2 on the pedestal 1, and the traction device is mounted on the traction device
In installation cavity, the traction device includes rotation axis 7, and the both ends of the rotation axis 7 pass through bearing respectively and are mounted on the traction dress
It sets on the inner wall of installation cavity, the rotation axis 7 is vertical with the extending direction of the guiding piece guide groove 4, solid in the rotation axis 7
It is cased with reel 8, the reel 8 and 3 face of guiding piece are arranged, and pass through institute between the reel 8 and the guiding piece 3
State bracing wire connection.
When specifically used, drawing paper is placed in drawing paper placing groove 5, then traction device pulls guiding piece, makes bullet
Property rope be in nature extension state when, paintbrush is put into a hole a to setting, continue slowly using traction device pull guiding piece,
Paintbrush leaves straight line with guiding piece sliding on drawing paper, guiding piece is stopped drag when elastic fracture of rope, then
Paintbrush and drawing paper are taken out, the length of the straight line left on drawing paper is the maximum deformation quantity of elastic string.
Take-up speed is too fast in order to prevent, causes to record data inaccuracy, rotation axis 7 is connected with retarder, in rotation axis 7
Coaxial sleeve is equipped with big transmission gear 9, and rotating bar 10 is equipped with below rotation axis 7, and the both ends of rotating bar 10 are installed by bearing respectively
On the inner wall of traction device installation cavity, small transmission gear 11 is installed in rotating bar 10, the small transmission gear 11 and big transmission
Gear 9 engages, and big transmission gear 9, small transmission gear 11 and rotating bar 10 form retarder.
In order to easy to operate, the either end of operation rotating bar 10 is connected with hand-held turntable after being pierced by traction device installation cavity
12。
Finally, it should be noted that foregoing description is only the preferred embodiment of the utility model, the common skill of this field
Art personnel are under the enlightenment of the utility model, under the premise of without prejudice to the utility model aims and claim, can make
Multiple similar expressions, such transformation each fall within the protection scope of the utility model.
Claims (6)
1. a kind of elastic string maximum elongation measurer, it is characterised in that: including pedestal (1), face is equipped with solid on the pedestal (1)
Determine block (2) and guiding piece (3), the guiding piece (3) are corresponded on the pedestal (1) equipped with guiding piece guide groove (4), the traction
Block guide groove (4) is fastened on the guiding piece and leads along the direction linear extension far from the fixed block (2), the guiding piece (3)
To in slot (4), the guiding piece (3) is slided along the guiding piece guide groove (4)；
The pedestal (1) is equipped with drawing paper placing groove (5), and the drawing paper placing groove (5) is parallel with guiding piece guide groove (4) to be set
It sets, the corresponding drawing paper placing groove (5) of the guiding piece (3) is equipped with fixed link (6), which is located at the drawing paper and puts
Above the notch for setting slot (5), the fixed link (6) is equipped with and sets a hole (a), this sets a hole (a) towards the drawing paper placing groove
(5) it is arranged.
2. elastic string maximum elongation measurer according to claim 1, it is characterised in that: close on the pedestal (1)
The guiding piece guide groove (4) is equipped with traction device, the traction device and the traction far from the one end of the fixed block (2)
Block (3) is connected by bracing wire, and the traction device pulls the guiding piece (3) far from the fixed block (2).
3. elastic string maximum elongation measurer according to claim 2, it is characterised in that: separate on the pedestal (1)
The fixed block (2) is equipped with traction device installation cavity, and the traction device is mounted in the traction device installation cavity, described to lead
Leading-in device includes rotation axis (7), and the both ends of the rotation axis (7) pass through bearing respectively and are mounted on the interior of the traction device installation cavity
On wall, the rotation axis (7) is vertical with the extending direction of the guiding piece guide groove (4), be installed on the rotation axis (7) around
Line wheel (8), the reel (8) and the guiding piece (3) face are arranged, and lead between the reel (8) and the guiding piece (3)
Cross the bracing wire connection.
4. elastic string maximum elongation measurer according to claim 3, it is characterised in that: the traction device further includes
Retarder, the retarder are connect with the rotation axis (7).
5. elastic string maximum elongation measurer according to claim 4, it is characterised in that: same on the rotation axis (7)
Axle sleeve is equipped with big transmission gear (9), is equipped with rotating bar (10) below the rotation axis (7), the both ends point of the rotating bar (10)
It is not mounted on by bearing on the inner wall of the traction device installation cavity, is installed with small transmission gear on the rotating bar (10)
(11), which engages with the big transmission gear (9), the big transmission gear (9), small transmission gear (11)
The retarder is formed with rotating bar (10).
6. elastic string maximum elongation measurer according to claim 5, it is characterised in that: the rotating bar (10) is appointed
One end is connected with hand-held turntable (12) after being pierced by the traction device installation cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821951583.6U CN209148449U (en) | 2018-11-23 | 2018-11-23 | Elastic string maximum elongation measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821951583.6U CN209148449U (en) | 2018-11-23 | 2018-11-23 | Elastic string maximum elongation measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209148449U true CN209148449U (en) | 2019-07-23 |
Family
ID=67287441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821951583.6U Expired - Fee Related CN209148449U (en) | 2018-11-23 | 2018-11-23 | Elastic string maximum elongation measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209148449U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811956A (en) * | 2020-07-15 | 2020-10-23 | 杭州伊亦电子科技有限公司 | A portable pressure test machine for database data analysis |
| CN117629119A (en) * | 2024-01-25 | 2024-03-01 | 中交第一航务工程局有限公司 | Three-dimensional transverse rope measuring positioning device and method for large-water-depth immersed tube joint |
-
2018
- 2018-11-23 CN CN201821951583.6U patent/CN209148449U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811956A (en) * | 2020-07-15 | 2020-10-23 | 杭州伊亦电子科技有限公司 | A portable pressure test machine for database data analysis |
| CN111811956B (en) * | 2020-07-15 | 2021-03-26 | 浙江楠华电子科技有限责任公司 | A portable pressure test machine for database data analysis |
| CN117629119A (en) * | 2024-01-25 | 2024-03-01 | 中交第一航务工程局有限公司 | Three-dimensional transverse rope measuring positioning device and method for large-water-depth immersed tube joint |
| CN117629119B (en) * | 2024-01-25 | 2024-04-19 | 中交第一航务工程局有限公司 | Three-dimensional transverse rope measuring positioning device and method for large-water-depth immersed tube joint |
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Legal Events
| 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: 20190723 Termination date: 20201123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |