Compasses with radius convenient to adjust

Abstract

The utility model relates to the field of compasses, in particular to compasses convenient to adjust radius, which comprise a connecting block, an adjusting component is fixed on the side surface of the connecting block, a rotating component is arranged in the adjusting component, the adjusting component comprises an annular block fixed on the side surface of the connecting block, and the side surface of the annular block is movably connected with a connecting ruler. A first sleeve is fixed to the top surface of the annular block, a sliding block is movably connected to the side surface of the connecting ruler, a first limiting bolt is connected to the top surface of the sliding block through threads, and a transparent lens is fixed to the side surface of the sliding block. The connecting ruler and the sliding block are arranged in the adjusting assembly, a ruler and compasses are combined together, a user does not need to hold the compasses with one hand and hold the compasses with the other hand to measure the distance between a chalk and a compasses point, use is more convenient, meanwhile, the device can be used as the ruler, the application range is wide, and practicability is high. The protractor is arranged on the side surface of the connecting block, so that angles can be measured conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of compasses, in particular to a compass for conveniently adjusting the radius. Background Art

[0002] Mathematics education plays an important role in students' future learning. When students learn mathematics, they can exercise their thinking ability. At the same time, the quality of mathematics learning plays a vital role in students' learning of science and engineering. In the current mathematics teaching, teachers often need to draw circles on the blackboard, and they need to use compasses in the process of drawing circles.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: when using the existing compass, the teacher needs to draw a circle of a specified radius on the blackboard. The teacher needs to hold the compass in one hand and the ruler in the other hand to measure the distance between the chalk and the tip of the compass, which is very inconvenient to use. Utility Model Content

[0004] In order to improve the problem that in the existing use of compasses, teachers need to draw a circle of specified radius on the blackboard, which requires the teacher to hold the compass in one hand and the ruler in the other hand to measure the distance between the chalk and the compass tip, which is very inconvenient to use, the present application provides a compass with convenient radius adjustment.

[0005] The present application provides a compass for convenient adjustment of radius, which adopts the following technical scheme: a compass for convenient adjustment of radius, comprising a connecting block, an adjusting component fixed to the side surface of the connecting block, and a rotating component is provided inside the adjusting component, the adjusting component comprises an annular block fixed to the side surface of the connecting block, and the side surface of the annular block is movably connected with a connecting ruler, a sleeve is fixed to the top surface of the annular block, a sliding block is movably connected to the side surface of the connecting ruler, and the top surface of the sliding block is connected to a limiting bolt through a threaded connection, a transparent lens is fixed to the side surface of the sliding block, and a telescopic rod is fixed to the bottom surface of the sliding block, and a spring is provided on the surface of the telescopic rod, a connecting sleeve is fixed to the bottom surface of the telescopic rod, and the surface of the connecting sleeve is connected to a limiting bolt through a threaded connection, and an arc block is fixed to the side surface of the limiting bolt.

[0006] It is further configured that a spring 2 is provided inside the sleeve 1, and a slide groove 1 is provided on the surface of the sleeve 1, a boss 1 is movably connected inside the sleeve 1, and a slide column 1 is fixed on the surface of the boss 1.

[0007] It is further arranged that the side surface of the sliding column 1 contacts the surface of the sliding groove 1, and the protruding column 1 sequentially penetrates the annular block and the connecting ruler and extends to the interior of the connecting ruler.

[0008] It is further provided that the connecting block and the annular block are an integrated structure, and a protractor is fixed to a side surface of the connecting block.

[0009] It is further configured that the rotating assembly includes a connecting column fixed to the bottom surface of the annular block, and a concave plate is fixed to the bottom surface of the connecting column, a bearing 1 is fixed to the side surface of the concave plate, a rotating shaft is installed inside the bearing 1, and a round block is fixed to the surface of the rotating shaft, a rotating seat is fixed to the surface of the rotating shaft, and a compass head is fixed to the top surface of the rotating seat, a rotating column is fixed to the bottom surface of the rotating seat, and a bearing 2 is fixed to the bottom surface of the rotating column, a suction cup seat is fixed to the bottom surface of the bearing 2, and a limiting hole is opened on the surface of the round block.

[0010] It is further configured that a sleeve 2 is fixed to the side surface of the concave plate, a slide groove 2 is opened on the surface of the sleeve 2, and a spring 3 is sleeved inside the sleeve 2, a convex column 2 is movably connected inside the sleeve 2, and a slide column 2 is fixed on the surface of the convex column 2.

[0011] Compared with the related art, the compass for conveniently adjusting the radius provided by the utility model has the following beneficial effects:

[0012] The utility model provides a compass with convenient radius adjustment. An adjustment component is arranged on the surface of a connecting block, and a connecting ruler and a sliding block are arranged inside the adjusting component. The ruler and the compass are combined together, and a user does not need to hold the compass in one hand and the gauge in the other hand to measure the distance between the chalk and the compass tip. The use is more convenient, and the device can also be used as a ruler at the same time. The use is wide. Since a protractor is arranged on the side surface of the connecting block, it is convenient to measure the angle.

[0013] The utility model provides a compass with convenient radius adjustment. A rotating assembly is installed at the bottom of an annular block. A rotating seat is arranged inside the rotating assembly, a suction cup seat is arranged on one side of the rotating seat, and a compass head is arranged on the other side of the rotating seat. Users can adjust according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of a compass for conveniently adjusting the radius provided by the utility model;

[0015] Figure 2 This is the front view of the utility model;

[0016] Figure 3 This is a bottom view of the utility model;

[0017] Figure 4 It is the rear view of the utility model.

[0018] Numbers in the figure: 1, connecting block; 2, adjusting assembly; 201, annular block; 202, connecting ruler; 203, sleeve 1; 204, sliding block; 205, limit bolt 1; 206, telescopic rod; 207, spring 1; 208, connecting sleeve; 209, limit bolt 2; 210, arc block; 211, spring 2; 212, slide groove 1; 213, convex column 1; 214, slide column 1; 215, transparent mirror 1. Plate; 2. Rotating assembly; 301. Connecting column; 302. Concave plate; 303. Bearing 1; 304. Rotating shaft; 305. Round block; 306. Rotating seat; 307. Compass head; 308. Rotating column; 309. Bearing 2; 310. Suction cup seat; 311. Limiting hole; 312. Sleeve 2; 313. Slide 2; 314. Spring 3; 315. Boss 2; 316. Slide 2; 4. Protractor. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the accompanying drawings, in which typical embodiments of the present invention are shown. Example

[0020] like Figure 1-4 As shown, a compass for conveniently adjusting the radius of the utility model comprises a connecting block 1, an adjusting component 2 is fixed on the side surface of the connecting block 1, and a rotating component 3 is arranged inside the adjusting component 2, the adjusting component 2 comprises an annular block 201 fixed to the side surface of the connecting block 1, and a connecting ruler 202 is movably connected to the side surface of the annular block 201, a sleeve 203 is fixed to the top surface of the annular block 201, a sliding block 204 is movably connected to the side surface of the connecting ruler 202, and a limiting bolt 205 is threadedly connected to the top surface of the sliding block 204, a transparent lens 215 is fixed to the side surface of the sliding block 204, and a telescopic rod 206 is fixed to the bottom surface of the sliding block 204, and a spring 207 is sleeved on the surface of the telescopic rod 206, a connecting sleeve 208 is fixed to the bottom surface of the telescopic rod 206, and a limiting bolt 209 is threadedly connected to the surface of the connecting sleeve 208, and an arc block 210 is fixed to the side surface of the limiting bolt 209.

[0021] like Figure 1-4 As shown, a spring 211 is provided inside the sleeve 203 , and a slide groove 212 is provided on the surface of the sleeve 203 . A boss 213 is movably connected inside the sleeve 203 , and a slide column 214 is fixed on the surface of the boss 213 .

[0022] like Figure 1-4 As shown, the side surface of the slide column 214 contacts the surface of the slide groove 212 , and the protrusion 213 passes through the annular block 201 and the connecting ruler 202 in sequence and extends to the inside of the connecting ruler 202 .

[0023] like Figure 1-4 As shown, the connecting block 1 and the annular block 201 are an integrated structure, and a protractor 4 is fixed to the side surface of the connecting block 1 .

[0024] During implementation, when it is necessary to draw a circle, first turn the limit bolt 209, put the chalk or marker into the connecting sleeve 208, and turn the limit bolt 209 to limit the position, and at the same time turn the limit bolt 205, slide the sliding block 204, slide the sliding block 204 to a suitable position according to the scale on the surface of the connecting ruler 202, and turn the limit bolt 205 to limit the position, place the device on the blackboard, and rotate it to draw a circle. The user does not need to hold the compass in one hand and the size in the other hand to measure the distance between the chalk and the compass tip, which is more convenient to use. By sliding the sliding column 214, the sliding column 214 drives the convex column 213 to slide, so that the convex column 213 is separated from the annular block 201, and the connecting ruler 202 can be disassembled by sliding the connecting ruler 202. Example

[0025] like Figure 1-4 As shown, on the basis of embodiment 1, the utility model provides a technical solution: the rotating component 3 includes a connecting column 301 fixed to the bottom surface of the annular block 201, and a concave plate 302 is fixed to the bottom surface of the connecting column 301, a bearing 1 303 is fixed to the side surface of the concave plate 302, and a rotating shaft 304 is installed inside the bearing 1 303, and a round block 305 is fixed to the surface of the rotating shaft 304, a rotating seat 306 is fixed to the surface of the rotating shaft 304, and a compass head 307 is fixed to the top surface of the rotating seat 306, a rotating column 308 is fixed to the bottom surface of the rotating seat 306, and a bearing 2 309 is fixed to the bottom surface of the rotating column 308, a suction cup seat 310 is fixed to the bottom surface of the bearing 2 309, and a limiting hole 311 is opened on the surface of the round block 305.

[0026] like Figure 1-4 As shown, a sleeve 2 312 is fixed to the side surface of the concave plate 302, a slide groove 2 313 is provided on the surface of the sleeve 2 312, and a spring 314 is sleeved inside the sleeve 2 312, a convex column 2 315 is movably connected inside the sleeve 2 312, and a slide column 2 316 is fixed to the surface of the convex column 2 315.

[0027] During implementation, when the compass head 307 is needed, the sliding column 316 is slid, and the sliding column 316 drives the convex column 315 to slide, so that the convex column 315 is separated from the limiting hole 311 on the surface of the block 305. At the same time, the rotating seat 306 is rotated and the sliding column 316 is released, so that the block 305 can be limited, so that the compass head 307 can be used, which can be adjusted according to actual usage requirements.

[0028] The advantages of this technical solution in practical applications include but are not limited to the following:

[0029] 1. The interior of the adjustment component 2 is provided with a connecting ruler 202 and a sliding block 204, which combines the ruler with the compass. The user does not need to hold the compass in one hand and the gauge in the other hand to measure the distance between the chalk and the tip of the compass, which is more convenient to use. At the same time, the device can also be used as a ruler, which has a wide range of uses. Since the side surface of the connecting block 1 is provided with a protractor 4, it is convenient to measure the angle;

[0030] 2. A rotating seat 306 is provided inside the rotating assembly 3, a suction cup seat 310 is provided on one side of the rotating seat 306, and a compass head 307 is provided on the other side of the rotating seat 306, so that users can adjust according to actual needs.

[0031] When it is necessary to draw a circle in the present technical solution, firstly screw the second limit bolt 209, put the chalk or marker into the connecting sleeve 208, screw the second limit bolt 209 to limit the position, screw the limit bolt 1 205 at the same time, slide the sliding block 204, slide the sliding block 204 to a suitable position according to the scale on the surface of the connecting ruler 202, screw the limit bolt 1 205 to limit the position, place the device on the blackboard, and rotate it to draw a circle. The user does not need to hold the compass in one hand and the gauge in the other hand to measure the distance between the chalk and the tip of the compass, which is more convenient to use. Move the sliding column 1 214, the sliding column 1 214 drives the protruding column 1 213 to slide, so that the protruding column 1 213 is separated from the annular block 201, and the connecting ruler 202 can be disassembled by sliding. When the compass head 307 is needed, the sliding column 2 316 is slid, and the sliding column 2 316 drives the protruding column 2 315 to slide, so that the protruding column 2 315 is separated from the limiting hole 311 on the surface of the round block 305. At the same time, the rotating seat 306 is rotated, and the sliding column 2 316 is loosened, so that the round block 305 can be limited, so that the compass head 307 can be used, which can be adjusted according to actual usage requirements.

[0032] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A compass for conveniently adjusting the radius, comprising a connecting block (1), characterized in that: An adjustment component (2) is fixed to the side surface of the connection block (1), and a rotating component (3) is provided inside the adjustment component (2); The adjustment assembly (2) comprises an annular block (201) fixed to the side surface of the connection block (1), and the side surface of the annular block (201) is movably connected to a connection ruler (202), the top surface of the annular block (201) is fixed to a sleeve (203), the side surface of the connection ruler (202) is movably connected to a sliding block (204), and the top surface of the sliding block (204) is connected to a limiting bolt (205) by a thread, a transparent lens (215) is fixed to the side surface of the sliding block (204), and a telescopic rod (206) is fixed to the bottom surface of the sliding block (204), and a spring (207) is sleeved on the surface of the telescopic rod (206), a connection sleeve (208) is fixed to the bottom surface of the telescopic rod (206), and the surface of the connection sleeve (208) is connected to a limiting bolt (209) by a thread, and an arc block (210) is fixed to the side surface of the limiting bolt (209).

2. A compass for conveniently adjusting radius according to claim 1, characterized in that: A spring 2 (211) is arranged inside the sleeve 1 (203), and a slide groove 1 (212) is provided on the surface of the sleeve 1 (203). A boss 1 (213) is movably connected inside the sleeve 1 (203), and a slide column 1 (214) is fixed on the surface of the boss 1 (213).

3. A compass for conveniently adjusting radius according to claim 2, characterized in that: The side surface of the sliding column 1 (214) contacts the surface of the sliding groove 1 (212), and the protruding column 1 (213) sequentially penetrates the annular block (201) and the connecting ruler (202) and extends to the interior of the connecting ruler (202).

4. A compass for conveniently adjusting radius according to claim 1, characterized in that: The connecting block (1) and the annular block (201) are an integrated structure, and a protractor (4) is fixed on the side surface of the connecting block (1).

5. A compass for conveniently adjusting radius according to claim 1, characterized in that: The rotating assembly (3) comprises a connecting column (301) fixed to the bottom surface of the annular block (201), and a concave plate (302) is fixed to the bottom surface of the connecting column (301), a bearing 1 (303) is fixed to the side surface of the concave plate (302), a rotating shaft (304) is installed inside the bearing 1 (303), and a round block (305) is fixed to the surface of the rotating shaft (304), a rotating seat (306) is fixed to the surface of the rotating shaft (304), and a compass head (307) is fixed to the top surface of the rotating seat (306), a rotating column (308) is fixed to the bottom surface of the rotating seat (306), and a bearing 2 (309) is fixed to the bottom surface of the rotating column (308), a suction cup seat (310) is fixed to the bottom surface of the bearing 2 (309), and a limiting hole (311) is provided on the surface of the round block (305).

6. A compass for conveniently adjusting radius according to claim 5, characterized in that: A second sleeve (312) is fixed to the side surface of the concave plate (302), a second slide groove (313) is provided on the surface of the second sleeve (312), a third spring (314) is sleeved inside the second sleeve (312), a second convex column (315) is movably connected inside the second sleeve (312), and a second slide column (316) is fixed to the surface of the second convex column (315).

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