Angle measurer for teaching
By designing a teaching angle measuring device including a rotation shaft, a main horizontal bar, a secondary horizontal bar, an adjustment bar, a main angle ruler and a secondary angle ruler, the problem that the existing technology cannot easily measure the 360-degree angle is achieved, and flexible measurement of the 360-degree angle is achieved.
Patent Information
- Application Number
- CN202421892252.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-08-07
AI Technical Summary
Some existing teaching angle measuring devices cannot easily measure angles from 0 degrees to 180 degrees and from 180 degrees to 360 degrees, resulting in inconvenience in use.
A teaching angle measuring device is designed, including a rotation shaft, main horizontal bar, secondary horizontal bar, adjustment bar, main angle ruler and secondary angle ruler. By rotating the main angle ruler and the secondary angle ruler, combined with the fixation of the bolts, the measurement of the angle of 360 degrees is achieved.
The device enables the user to easily measure angles from 0 to 180 degrees and from 180 to 360 degrees, improving the flexibility and convenience of measurement.
Smart Images
Figure CN222849929U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of teaching tools, and in particular relates to an angle measuring device for teaching. Background Art
[0002] An angle measurer is a tool used to measure the angle of an object relative to a horizontal line or a reference line. It can be a simple protractor, a complex laser goniometer, or various electronic devices, such as a total station, theodolite, etc. These tools are widely used in engineering, construction, geological exploration, navigation, aviation, and scientific research. A protractor is usually a device with two movable arms, each with a mark or eye hole at one end, which is used to align the two sides of the measured angle. The protractor can directly read the size of the angle, and the common units of measurement are degrees, minutes, and seconds.
[0003] The angle scales of some existing teaching angle measuring instruments are only suitable for angle measurement in the range of 0 to 180 degrees, but cannot conveniently measure angles from 0 to 180 degrees and from 180 to 360 degrees, which is inconvenient for users to use and operate. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a teaching angle measuring instrument to solve the problem that the angle scales of some existing teaching angle measuring instruments proposed in the above background technology are only suitable for angle measurement in the range of 0 degrees to 180 degrees, but cannot conveniently measure the angles from 0 degrees to 180 degrees and from 180 degrees to 360 degrees, which is inconvenient for users to use and operate.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a teaching angle measuring device, comprising a rotating shaft, the outer side of the rotating shaft is rotatably connected with a main horizontal bar, a secondary horizontal bar and an adjustment bar from top to bottom in sequence, the outer side of the bottom of the rotating shaft is fixedly connected with a fixing bar, one side of the main horizontal bar is fixedly connected with a fixing block, the inner side of the fixing block is threadedly connected with a bolt, one end of the main horizontal bar is fixedly connected with a main angle ruler, one end of the secondary horizontal bar is fixedly connected with a secondary angle ruler, the top of the adjustment bar is fixedly connected with a fixing frame, the bottom of the fixing frame is fixedly connected with a spring, two springs are symmetrically arranged, the bottoms of the springs are fixedly connected with a positioning plate, and the bottom of the positioning plate is movably connected with the main angle ruler.
[0006] Preferably, one side of the positioning plate is fixedly connected to a limit strip, and one side of the limit strip is movably connected to a main angle ruler.
[0007] Preferably, a handle is fixedly connected to the top of the positioning plate, and the handle is located above the fixing frame.
[0008] Preferably, a limiting block is fixedly connected to the other side of the positioning plate, two limiting blocks are symmetrically arranged, and fixing frames are slidably connected to the outer sides of the limiting blocks.
[0009] Preferably, a gasket is movably connected to the outer side of one end of the bolt, and a fixing block is movably connected to the bottom of the gasket.
[0010] Preferably, a non-slip pad is fixedly connected to the bottom of the fixing bar, and the non-slip pad is made of rubber.
[0011] Preferably, a support block is fixedly connected to one side of the bottom of the adjustment strip, and the support block is located on one side of the main angle ruler.
[0012] Preferably, the outer surfaces of the bolt and the spring are both provided with an anti-oxidation coating.
[0013] Compared with the prior art, the present invention provides a teaching angle measuring device having the following features:
[0014] Beneficial effects:
[0015] 1. The utility model sets a secondary angle ruler, a secondary horizontal bar is fixedly connected to the inner side of the secondary angle ruler, a rotating shaft is rotatably connected to the inner side of the secondary horizontal bar, a main horizontal bar is rotatably connected to the outer side of the rotating shaft, a main angle ruler is fixedly connected to one side of the main horizontal bar, and a secondary angle ruler is rotatably connected to the bottom of the main angle ruler. When the user only needs to measure and depict an angle in the range of 0 to 180 degrees, the user can hold the adjustment bar and rotate it to the required angle for measurement and depiction. When the user needs to measure and depict an angle between 180 and 360 degrees, the main angle ruler is rotated so that the secondary angle ruler at the bottom of the main angle ruler forms a circle with the main angle ruler, and then the main angle ruler and the secondary angle ruler are fixed by bolts, and then the adjustment bar is rotated to the specified angle for measurement and depiction, which effectively facilitates the user to measure the angles from 0 to 180 degrees and from 180 to 360 degrees.
[0016] 2. The utility model provides an anti-skid pad, and a fixing strip is fixedly connected to the top of the anti-skid pad, which effectively prevents sliding when the device is used for measurement and engraving, thereby affecting the drawing;
[0017] 3. The utility model provides a handle, and a positioning plate is fixedly connected to the bottom of the handle, which effectively facilitates the user to pull up the positioning plate to move its position.
[0018] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0020] Figure 1 This is a schematic diagram of the axonometric structure of an angle measuring device for teaching proposed by the utility model;
[0021] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;
[0022] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;
[0023] Figure 4 This is a schematic diagram of the rotational expansion structure of a teaching angle measuring device proposed by the utility model;
[0024] Figure 5 This is a schematic diagram of the top view of the structure of a teaching angle measuring device proposed by the utility model;
[0025] In the figure: shaft 1, main horizontal bar 2, secondary horizontal bar 3, adjustment bar 4, fixing bar 5, fixing block 6, bolt 7, main angle ruler 8, secondary angle ruler 9, fixing frame 10, spring 11, positioning plate 12, limit bar 13, handle 14, limit block 15, gasket 16, anti-slip pad 17, support block 18. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figure 1-5The utility model provides a technical solution: a teaching angle measuring device, comprising a rotating shaft 1, the outer side of the rotating shaft 1 is rotatably connected with a main horizontal bar 2, a secondary horizontal bar 3 and an adjusting bar 4 from top to bottom, the outer side of the bottom of the rotating shaft 1 is fixedly connected with a fixing bar 5, one side of the main horizontal bar 2 is fixedly connected with a fixing block 6, the inner side of the fixing block 6 is threadedly connected with a bolt 7, one end of the main horizontal bar 2 is fixedly connected with a main angle ruler 8, one end of the secondary horizontal bar 3 is fixedly connected with a secondary angle ruler 9, the top of the adjusting bar 4 is fixedly connected with a fixing frame 10, the bottom of the fixing frame 10 is fixedly connected with a spring 11, two springs 11 are symmetrically arranged, and the bottom of the spring 11 is fixedly connected with a positioning plate 12, A main angle ruler 8 is movably connected to the bottom of the positioning plate 12. When the user only needs to measure and depict an angle in the range of 0 degrees to 180 degrees, he or she can hold the adjustment bar 4 and rotate it to the required angle for measurement and depiction. When it is necessary to measure and depict an angle between 180 degrees and 360 degrees, the main angle ruler 8 is rotated so that the secondary angle ruler 9 at the bottom of the main angle ruler 8 forms a circle with the main angle ruler 8, and then the main angle ruler 8 and the secondary angle ruler 9 are fixed by bolts 7, and then the adjustment bar 4 is rotated to the specified angle for measurement and depiction, which effectively facilitates users to measure angles from 0 degrees to 180 degrees and from 180 degrees to 360 degrees.
[0028] In the present invention, preferably, one side of the positioning plate 12 is fixedly connected to the limiting strip 13 , and one side of the limiting strip 13 is movably connected to the main angle ruler 8 , so as to effectively limit the positioning plate 12 .
[0029] In the present invention, preferably, a handle 14 is fixedly connected to the top of the positioning plate 12, and the handle 14 is located above the fixing frame 10, which effectively facilitates the user to pull up the positioning plate 12 to move its position.
[0030] In the utility model, preferably, the other side of the positioning plate 12 is fixedly connected to a limiting block 15, two limiting blocks 15 are symmetrically arranged, and the outer sides of the limiting blocks 15 are slidably connected to a fixing frame 10, which effectively prevents the positioning plate 12 from moving when moving up and down.
[0031] In the utility model, preferably, a gasket 16 is movably connected to the outer side of one end of the bolt 7 , and a fixing block 6 is movably connected to the bottom of the gasket 16 , which effectively increases the stability of the bolt 7 .
[0032] In the present invention, preferably, a non-slip pad 17 is fixedly connected to the bottom of the fixing bar 5, and the non-slip pad 17 is made of rubber material, which effectively prevents sliding when using the device to measure and depict, thereby affecting the drawing.
[0033] In the utility model, preferably, one side of the bottom of the adjustment strip 4 is fixedly connected with a support block 18, and the support block 18 is located on one side of the main angle ruler 8, which effectively supports the adjustment strip 4 to prevent the adjustment strip from deforming and affecting the measurement and depiction of the angle.
[0034] In the present invention, preferably, the outer surfaces of the bolt 7 and the spring 11 are provided with an anti-oxidation coating, which effectively prevents the bolt 7 and the spring 11 from oxidizing and rusting, and enhances their anti-oxidation ability.
[0035] The working principle and use process of the utility model are as follows: during use, when the user only needs to measure and depict the angle in the range of 0 degrees to 180 degrees, just hold the adjustment bar 4 and rotate it to the required angle for measurement and depiction. When it is necessary to measure and depict the angle between 180 degrees and 360 degrees, rotate the main angle ruler 8 so that the secondary angle ruler 9 at the bottom of the main angle ruler 8 forms a circle with the main angle ruler 8, and then fix the main angle ruler 8 and the secondary angle ruler 9 by bolts 7, and then rotate the adjustment bar 4 to the specified angle for measurement and depiction, which effectively and conveniently allows users to measure the angles from 0 degrees to 180 degrees and from 180 degrees to 360 degrees.
[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A teaching angle measuring device, comprising a rotating shaft (1), characterized in that: The outer side of the rotating shaft (1) is rotatably connected with a main horizontal bar (2), a secondary horizontal bar (3) and an adjustment bar (4) in sequence from top to bottom; the outer side of the bottom of the rotating shaft (1) is fixedly connected with a fixing bar (5); one side of the main horizontal bar (2) is fixedly connected with a fixing block (6); the inner side of the fixing block (6) is threadedly connected with a bolt (7); one end of the main horizontal bar (2) is fixedly connected with a main angle scale (8); one end of the secondary horizontal bar (3) is fixedly connected with a secondary angle scale (9); the top of the adjustment bar (4) is fixedly connected with a fixing frame (10); the bottom of the fixing frame (10) is fixedly connected with a spring (11); two springs (11) are symmetrically arranged; the bottoms of the springs (11) are fixedly connected with a positioning plate (12); the bottom of the positioning plate (12) is movably connected with the main angle scale (8).
2. The teaching angle measuring device according to claim 1, characterized in that: One side of the positioning plate (12) is fixedly connected to a limit strip (13), and one side of the limit strip (13) is movably connected to a main angle ruler (8).
3. The teaching angle measuring device according to claim 1, characterized in that: A handle (14) is fixedly connected to the top of the positioning plate (12), and the handle (14) is located above the fixing frame (10).
4. The teaching angle measuring device according to claim 1, characterized in that: The other side of the positioning plate (12) is fixedly connected to a limiting block (15), two limiting blocks (15) are symmetrically arranged, and the outer sides of the limiting blocks (15) are slidably connected to a fixing frame (10).
5. The teaching angle measuring device according to claim 1, characterized in that: A gasket (16) is movably connected to the outer side of one end of the bolt (7), and a fixing block (6) is movably connected to the bottom of the gasket (16).
6. The teaching angle measuring device according to claim 1, characterized in that: The bottom of the fixing strip (5) is fixedly connected with an anti-skid pad (17), and the anti-skid pad (17) is made of rubber.
7. The teaching angle measuring device according to claim 1, characterized in that: A support block (18) is fixedly connected to one side of the bottom of the adjustment bar (4), and the support block (18) is located on one side of the main angle ruler (8).
8. The teaching angle measuring device according to claim 1, characterized in that: The outer surfaces of the bolt (7) and the spring (11) are both provided with an anti-oxidation coating.