CN212082205U - Equipment for measuring diameter and area of circle - Google Patents
Equipment for measuring diameter and area of circle Download PDFInfo
- Publication number
- CN212082205U CN212082205U CN201922289050.7U CN201922289050U CN212082205U CN 212082205 U CN212082205 U CN 212082205U CN 201922289050 U CN201922289050 U CN 201922289050U CN 212082205 U CN212082205 U CN 212082205U
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- measuring scale
- measuring
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- circle
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Abstract
The utility model discloses a device for measuring the diameter and the area of a circle, which comprises a first measuring scale, a second measuring scale and a laser range finder, one end of the first measuring scale is connected with one end of the second measuring scale, a fixing frame is arranged in the middle of the first measuring scale and the second measuring scale, a laser range finder is inserted in the fixing frame, limiting blocks are symmetrically arranged at the front end of the fixing frame, limiting grooves are arranged at the joints of the first measuring scale, the second measuring scale and the limiting blocks, the limiting block is clamped with the limiting groove, gradienters are arranged at the front end and the upper end of the first measuring scale, an optical switch is arranged at the upper end of one side of the first measuring scale, which is far away from the laser range finder, the gradienter is arranged at the front end of the second measuring scale, the radius, the perimeter and the area can be conveniently measured when the round points are not known, the instrument can be used as a teaching instrument to enable students to understand the Pythagorean theorem more deeply, and the instrument can also be used for engineering measurement.
Description
Technical Field
The utility model relates to a measuring instrument specifically is a measure equipment of diameter and area of circle.
Background
The diameter of the circle can not be directly measured when the circle point is not known at present, and the circumference of the circle is inconvenient to measure when the circle is too large, so that the measuring instrument which can conveniently measure the diameter and the circumference when the circle point is not known has certain market prospect. The diameter or area of some round or spherical objects is measured.
Disclosure of Invention
An object of the utility model is to provide a measure equipment of diameter and area of circle to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a measure equipment of diameter and area of circle, includes dipperstick one, dipperstick two and laser range finder, the one end of dipperstick two is connected to the one end of dipperstick one, and the mid-mounting of dipperstick one and dipperstick two has fixed frame, and the inside cartridge of fixed frame has laser range finder, and the front end department symmetry of fixed frame is equipped with the stopper, dipperstick one and dipperstick two are equipped with the spacing groove with the junction of stopper, and stopper joint spacing groove, the spirit level is installed to the front end and the upper end of dipperstick one, one side upper end that laser range finder was kept away from to dipperstick one is equipped with the photoswitch, the spirit level is installed to the front end of dipperstick two, and two upper end cases of dipperstick have display screen and function key, and one side upper end that laser range finder was.
As a further aspect of the present invention, there is a switch on the second measuring scale for controlling the display screen, and the display screen can display the distance, radius, perimeter and area.
As a further proposal of the utility model, the length of the first measuring scale and the second measuring scale is 20cm, the width is 3cm, and the thickness is 1.5 cm.
As the utility model discloses further scheme again, the spirit level is the triangle-shaped structure, and spirit level base length is 2 cm.
As a further proposal, the distance between the optical switch and the laser distance measuring instrument is 10 cm.
As the utility model discloses further scheme again, the draw-in groove has been seted up to the rear end junction of dipperstick one and dipperstick two, fixed frame outer wall sliding connection draw-in groove inner wall.
As the utility model discloses further scheme again, the jack has been seted up with the junction of dipperstick two to dipperstick one, and the cartridge of jack department has the bolt, dipperstick one and dipperstick two-way bolt rotation connection of passing through.
Compared with the prior art, the beneficial effects of the utility model are that:
the radius, the perimeter and the area can be conveniently measured when the round points are not known, the instrument can be used as a teaching instrument to enable students to understand the Pythagorean theorem more deeply, and the instrument can also be used for engineering measurement.
Drawings
Fig. 1 is a schematic view of a structure of an apparatus for measuring a diameter and an area of a circle.
Fig. 2 is a schematic view showing the construction of an apparatus for measuring the diameter and area of a circle.
Fig. 3 is a rear view of an apparatus for measuring the diameter and area of a circle.
Fig. 4 is an enlarged view of a structure of a in an apparatus for measuring a diameter and an area of a circle.
In the figure: 1-a first measuring scale, 2-a second measuring scale, 3-a laser range finder, 4-a fixed frame, 5-a limiting block, 6-a limiting groove, 7-a level meter, 8-an optical switch, 9-a display screen, 10-a function key, 11-a clamping groove, 12-a jack and 13-a bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, in the embodiment of the present invention, an apparatus for measuring the diameter and area of a circle comprises a first measuring scale 1, a second measuring scale 2 and a laser range finder 3, wherein the first measuring scale 1 and the second measuring scale 2 have a length of 20cm, a width of 3cm and a thickness of 1.5cm, one end of the first measuring scale 1 is connected to one end of the second measuring scale 2, a fixing frame 4 is installed at the middle parts of the first measuring scale 1 and the second measuring scale 2, the laser range finder 3 is inserted into the fixing frame 4, a limiting block 5 is symmetrically arranged at the front end of the fixing frame 4, a limiting groove 6 is arranged at the joint of the first measuring scale 1 and the second measuring scale 2 and the limiting block 5, the limiting block 5 is clamped with the limiting groove 6, a level gauge 7 is installed at the front end and the upper end of the first measuring scale 1, the level gauge 7 has a triangular structure, the length of the bottom edge of the level gauge 7 is 2cm, an optical switch 8 is arranged at the upper end of, photoswitch 8 is 10cm with laser range finder 3's distance, spirit level 7 is installed to dipperstick two 2's front end, and dipperstick two 2 upper end file has display screen 9 and function key 10, and dipperstick two 2 keeps away from one side upper end of laser range finder 3 and is equipped with photoswitch 8.
Referring to fig. 3, a clamping groove 11 is formed at a connection position of the rear ends of the first measuring ruler 1 and the second measuring ruler 2, and the outer wall of the fixing frame 4 is slidably connected with the inner wall of the clamping groove 11.
Referring to fig. 4, an insertion hole 12 is formed at a connection position of the first measuring scale 1 and the second measuring scale 2, a plug 13 is inserted into the insertion hole 12, and the first measuring scale 1 and the second measuring scale 2 are rotatably connected through the plug 13.
The utility model discloses a theory of operation is:
during the use, be close to one section circular shape circumference with dipperstick 1 and dipperstick two 2, the angle frame on 7 bases of triangle-shaped spirit level is on the circumference, spirit level 7 is opened and is kept the horizontality, utilize laser range finder 3 to measure the linear distance between dipperstick 1 and dipperstick two 2 and the circumference, when measuring the circumference great, put dipperstick 1 and dipperstick two 2 outside tops on the circumference, dipperstick 1 and dipperstick two 2 are located the inboard of circumference, utilize dipperstick 1Measuring to obtain a distance a from the circumference to the middle of the laser range finder 3, measuring by the laser range finder 3 to obtain a dimension b, and utilizing a formula r2＝a2+(r2-b2) Calculating the radius
Circumference of
The area of the circumference is
When the measured circumference is small, the first measuring scale 1 and the second measuring scale 2 are placed on the outer side of the circumference, the distance from the circumference to the middle of the laser range finder 3 is measured by the first measuring scale 1 as a, the laser range finder 3 obtains the size b by measurement, and the formula (r + b) is used2)＝r2+a2Calculating the radius
Circumference of
The area of the circumference is
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The equipment for measuring the diameter and the area of the circle comprises a first measuring scale (1), a second measuring scale (2) and a laser range finder (3), and is characterized in that one end of the first measuring scale (1) is connected with one end of the second measuring scale (2), a fixed frame (4) is installed in the middle of the first measuring scale (1) and the second measuring scale (2), the laser range finder (3) is inserted into the fixed frame (4), limit blocks (5) are symmetrically arranged at the front end of the fixed frame (4), limit grooves (6) are arranged at the joints of the first measuring scale (1), the second measuring scale (2) and the limit blocks (5), the limit blocks (5) are clamped with the limit grooves (6), a level gauge (7) is installed at the front end and the upper end of the first measuring scale (1), an optical switch (8) is arranged at the upper end, far away from the laser range finder (3), the level gauge (7) is installed at the front end of the second measuring scale (2), the end case has display screen (9) and function key (10) on dipperstick two (2), and one side upper end that laser range finder (3) was kept away from in dipperstick two (2) is equipped with photoswitch (8), draw-in groove (11) have been seted up to the rear end junction of dipperstick one (1) and dipperstick two (2), fixed frame (4) outer wall sliding connection draw-in groove (11) inner wall.
2. The apparatus for measuring the diameter and area of a circle as claimed in claim 1, wherein the second measuring scale (2) has a switch for controlling the display screen (9), and the display screen (9) can display the distance, radius, circumference and area.
3. An apparatus for measuring the diameter and area of a circle as defined in claim 1, wherein said first (1) and second (2) gauges are 20cm long, 3cm wide and 1.5cm thick.
4. A device for measuring the diameter and area of a circle according to claim 1, characterized in that the level (7) is of triangular configuration and the length of the base of the level (7) is 2 cm.
5. A device for measuring the diameter and area of a circle according to claim 1, characterized in that the distance of the optical switch (8) from the laser distance meter (3) is 10 cm.
6. The equipment for measuring the diameter and the area of the circle according to claim 1, wherein a jack (12) is formed at the joint of the first measuring scale (1) and the second measuring scale (2), a bolt (13) is inserted into the jack (12), and the first measuring scale (1) and the second measuring scale (2) are rotatably connected through the bolt (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922289050.7U CN212082205U (en) | 2019-12-19 | 2019-12-19 | Equipment for measuring diameter and area of circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922289050.7U CN212082205U (en) | 2019-12-19 | 2019-12-19 | Equipment for measuring diameter and area of circle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212082205U true CN212082205U (en) | 2020-12-04 |
Family
ID=73555974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922289050.7U Active CN212082205U (en) | 2019-12-19 | 2019-12-19 | Equipment for measuring diameter and area of circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212082205U (en) |
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2019
- 2019-12-19 CN CN201922289050.7U patent/CN212082205U/en active Active
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