CN216523474U - Ruler capable of measuring arbitrary curves - Google Patents
Ruler capable of measuring arbitrary curves Download PDFInfo
- Publication number
- CN216523474U CN216523474U CN202123203739.7U CN202123203739U CN216523474U CN 216523474 U CN216523474 U CN 216523474U CN 202123203739 U CN202123203739 U CN 202123203739U CN 216523474 U CN216523474 U CN 216523474U
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- Prior art keywords
- measuring
- chute
- hole
- rope
- slide block
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- Expired - Fee Related
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims abstract 2
- 238000005259 measurement Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a ruler capable of measuring any curve, which comprises a ruler body with scales, wherein a measuring chute parallel to scale marks is arranged on the front surface of the ruler body, and a through hole penetrating through the end surface of the ruler body is formed in one end of the measuring chute, which is far away from a zero scale line, along the extending direction of the measuring chute; a measuring slide block is connected in the measuring chute in a sliding manner, a part of the measuring slide block, which is positioned in the measuring chute, is fixedly connected with a measuring rope, and the other end of the measuring rope penetrates through the through hole along the measuring chute and is fixedly connected with a measuring block with the size larger than that of the through hole; when the measuring slide block is positioned at the end part of the measuring chute close to one end of the zero scribed line, the measuring slide block is aligned with the zero scribed line, the measuring rope is in a straightening state in the measuring chute, and the other end of the measuring rope is flush with the end face of the through hole; the position that the ruler body openly is close to the through-hole exit end is equipped with the fixed spout that communicates with the through-hole is perpendicular, is equipped with in the fixed spout to promote from top to bottom along fixed spout with the fixed slider of fixed measuring rope of extrusion.
Description
Technical Field
The utility model relates to a teaching aid, in particular to a ruler capable of measuring any curve.
Background
At present, in teaching, no good special tool for measuring the curve length in a two-dimensional plane or a three-dimensional space exists, and an approximation method or a curve-replacing-curve method is generally adopted for measurement at present, but the measurement has larger deviation because the approximation method is adopted.
SUMMERY OF THE UTILITY MODEL
In view of the above problems in the prior art, an object of the present invention is to provide a ruler which has a simple structure and can measure any curve accurately.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a ruler capable of measuring any curve comprises a ruler body with scales, wherein a measuring chute parallel to scale marks is arranged on the front surface of the ruler body, and a through hole penetrating through the end surface of the ruler body is formed in one end, away from a zero scale line, of the measuring chute in the extending direction of the measuring chute; a measuring sliding block is connected in the measuring sliding chute in a sliding manner, a part of the measuring sliding block, which is positioned in the measuring sliding chute, is fixedly connected with a measuring rope, and the other end of the measuring rope penetrates through the through hole along the measuring sliding chute and is fixedly connected with a measuring block with the size larger than that of the through hole; when the measuring slide block is positioned at the end part of the measuring chute close to one end of the zero scribed line, the measuring slide block is aligned with the zero scribed line, the measuring rope is in a straightening state in the measuring chute, and the other end of the measuring rope is flush with the end face of the through hole;
the ruler body is provided with a fixed chute which is vertically communicated with the through hole at a position close to the outlet end of the through hole in the front side, and a fixed sliding block which can be pushed up and down along the fixed chute to extrude and fix the measuring rope is arranged in the fixed chute.
Furthermore, the measuring slide block comprises a slide block positioned in the measuring slide groove and a shifting block fixedly connected with the slide block and positioned outside the measuring slide groove, a scale line used for aligning scales is arranged on the shifting block, and when the slide block is positioned at the end part of the measuring slide groove close to one end of the zero scale line, the scale line of the shifting block is aligned with the zero scale line.
Furthermore, one end of the fixed sliding block, which is used for extruding and fixing the measuring rope, is of an arc structure matched with the inner wall of the through hole.
Compared with the prior art, the utility model has the following technical effects:
according to the utility model, an arbitrary curve is simulated by using the measuring rope of the pull-out part, then the measuring rope is clamped on the inner wall of the through hole by one hand through the fixing slide block, the other hand ensures that the measuring rope is in a straightening state in the measuring chute, and the reading of the position of the measuring slide block is the length of the measuring rope of the pull-out part, namely the length of the curve to be measured, so that the length of the arbitrary curve can be conveniently and accurately measured.
The utility model can measure the length of any curve in any two-dimensional plane or three-dimensional solid.
Drawings
FIG. 1 is a schematic structural view of a freeform ruler capable of measuring arbitrary curves according to an embodiment of the present invention;
FIG. 2 is a top view of a freeform ruler of the present invention according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a cross-sectional view of a freeform ruler at a measurement slide according to embodiments of the present invention.
In the figure: 1. a straightedge body; 2. a measuring chute; 3. a through hole; 4. a measuring slide block; 401. a slider; 402. shifting blocks; 5. measuring a rope; 6. a measuring block; 7. fixing the chute; 8. and fixing the sliding block.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples.
Referring to fig. 1-4, the embodiment provides a ruler capable of measuring any curve, which comprises a ruler body 1 with scales, wherein a measuring chute 2 parallel to the scale marks is arranged on the front surface of the ruler body 1, the cross section of the bottom of the measuring chute 2 is in an arc-shaped structure, a through hole 3 penetrating through the end surface of the ruler body 1 is formed in one end, far away from a zero scale line, of the measuring chute 2 along the extending direction of the measuring chute 2, and the through hole 3 and the arc-shaped structure at the bottom of the measuring chute 2 are coaxial and have the same radius; a measuring slide block 4 is connected in the measuring chute 2 in a sliding manner, the measuring slide block 4 comprises a slide block 401 positioned in the measuring chute 2 and a shifting block 402 fixedly connected with the slide block 401 and positioned outside the measuring chute 2, a scribed line for aligning scales and facilitating reading is arranged on the shifting block 402, and when the slide block 401 is positioned at the end part of the measuring chute 2 close to one end of a zero scribed line, the scribed line of the shifting block 402 is aligned with the zero scribed line; a measuring rope 5 is fixedly connected to the sliding block 401, and the other end of the measuring rope 5 penetrates through the through hole 3 along the measuring chute 2 and is fixedly connected with a measuring block 6 with the size larger than that of the through hole 3; wherein measuring block 6 can be for multiple structures such as sphere or square, draws when setting up of measuring block 6 can facilitate the use and gets measuring rope 5 to prevent that measuring rope 5 from getting into measuring the inconvenient scheduling problem of taking of spout 2 completely.
When the scribed lines on the dial block 402 of the measuring slide block 4 are aligned with the zero scribed lines, the measuring rope 5 is in a straightened state in the measuring chute 2, and the other end of the measuring rope 5 is flush with the end face of the through hole 3;
a fixed chute 7 vertically communicated with the through hole 3 is arranged at the position, close to the outlet end of the through hole 3, on the front surface of the ruler body 1, and preferably, the fixed chute 7 is vertically communicated with one end, far away from the scribed line, of the through hole 3; a fixed sliding block 8 which can be pushed up and down along the fixed sliding chute 7 to extrude and fix the measuring rope 5 is arranged in the fixed sliding chute 7; the fixed sliding block 8 is pushed upwards to fix the measuring rope 5 at the top of the through hole 3, namely one end close to the scale mark, the hand is pressed hard, the other hand straightens the measuring rope 5 through the shifting block 402, and at the moment, the reading of the scale mark on the shifting block 402 on the scale mark is the length of the measuring rope 5 pulled out of the measuring chute 2; preferably, after the measurement is finished, in order to accurately read the measurement data and avoid the influence of the left and right sliding of the measurement rope 5 on the accuracy of the data, in the utility model, one end of the fixed sliding block 8, which is used for extruding and fixing the measurement rope 5, is arranged to be of an arc structure matched with the inner wall of the through hole 3 so as to stably fix the measurement rope 5.
When the device is used, the shifting block 402 can be shifted to a zero-scribed line position, the measuring rope 5 is pulled out through the measuring block 6 to cover a curve to be measured, the tail point of the curve to be measured is ensured to be positioned at the port of the through hole 3, then the fixed sliding block 8 is pushed upwards, the measuring rope 5 is tightly clamped and fixed on the inner wall of the through hole 3 without loosing hands, then the measuring rope 5 positioned in the measuring chute 2 is ensured to be in a straight state, the reading of the position of the shifting block 402 is read, and the read data is the length of the curve to be measured.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. The ruler capable of measuring any curve is characterized by comprising a ruler body (1) with scales, wherein a measuring chute (2) parallel to the scale marks is arranged on the front side of the ruler body (1), and a through hole (3) penetrating through the end face of the ruler body (1) is formed in one end, far away from a zero scale line, of the measuring chute (2) along the extending direction of the measuring chute (2); a measuring slide block (4) is connected in the measuring chute (2) in a sliding manner, a measuring rope (5) is fixedly connected to the part, located in the measuring chute (2), of the measuring slide block (4), and the other end of the measuring rope (5) penetrates through the through hole (3) along the measuring chute (2) and is fixedly connected with a measuring block (6) with the size larger than that of the through hole (3); when the measuring slide block (4) is positioned at the end part of the measuring chute (2) close to one end of the zero scribed line, the measuring slide block (4) is aligned with the zero scribed line, the measuring rope (5) is in a straightening state in the measuring chute (2), and the other end of the measuring rope (5) is flush with the end surface of the through hole (3);
the ruler body (1) openly be close to through-hole (3) exit end the position be equipped with through-hole (3) perpendicular intercommunication's fixed spout (7), be equipped with in fixed spout (7) and promote from top to bottom along fixed spout (7) with fixed slider (8) of fixed measuring rope (5) of extrusion.
2. The straightedge capable of measuring arbitrary curves according to claim 1, wherein said measuring slider (4) comprises a sliding block (401) located inside said measuring chute (2) and a dial (402) fixedly connected to said sliding block (401) and located outside said measuring chute (2), said dial (402) is provided with a graduation line for aligning the graduation, when said sliding block (401) is located at the end of said measuring chute (2) near the end of the zero graduation line, the graduation line of said dial (402) is aligned with the zero graduation line.
3. The straightedge capable of measuring arbitrary curves according to claim 1 or 2, wherein the end of said fixed slider (8) for pressing and fixing the measuring string (5) is an arc-shaped structure matching with the inner wall of said through hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123203739.7U CN216523474U (en) | 2021-12-20 | 2021-12-20 | Ruler capable of measuring arbitrary curves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123203739.7U CN216523474U (en) | 2021-12-20 | 2021-12-20 | Ruler capable of measuring arbitrary curves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216523474U true CN216523474U (en) | 2022-05-13 |
Family
ID=81500471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123203739.7U Expired - Fee Related CN216523474U (en) | 2021-12-20 | 2021-12-20 | Ruler capable of measuring arbitrary curves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216523474U (en) |
-
2021
- 2021-12-20 CN CN202123203739.7U patent/CN216523474U/en not_active Expired - Fee Related
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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: 20220513 |