High stability compasses

Abstract

This invention provides a highly stable compass. Before drawing a circle using this highly stable compass, a pencil is inserted between two arc-shaped locking plates. By rotating the movable nut, the two connecting plates are driven closer together, thereby clamping and fixing the pencil. By rotating the rotating foot, the distance between the pencil and the fixed foot is adjusted, thus adjusting the size of the circle. After adjusting the distance between the pencil and the fixed foot, the rotating receiving plate is driven to rotate by the two rotating handles, thereby causing the arc-shaped rotating plate to rotate along the annular rotating groove. During the rotation of the arc-shaped rotating plate along the annular rotating groove, it moves closer to the rotating foot, eventually causing the third anti-slip pad on the arc-shaped rotating plate to abut against the rotating foot. This causes the second anti-slip pad on the rotating foot to abut against the first anti-slip pad on the fixed foot, thereby compressing and limiting the position between the rotating foot and the fixed foot.

Description

Technical Field

[0001] This utility model relates to the field of compasses, and in particular to highly stable compasses. Background Technology

[0002] In mathematics and drafting, a compass is a tool used to draw circles or arcs, commonly used in ruler-and-compass constructions. Traditional compasses, such as the one protected by the patent application number CN202022443896.4, whose invention is titled "Compass," suffer from a problem in practical use: the distance between the compass legs and the drawing legs easily changes, making it impossible to meet the requirement of accurately drawing circles. Utility Model Content

[0003] Therefore, it is necessary to provide a highly stable compass to address the technical problem that the distance between the compass feet and the drawing feet of traditional compasses can easily change during actual use, thus failing to meet the requirements for accurate circle drawing.

[0004] A high-stability compass includes: a grip post, a receiving box, fixed feet, rotating feet, a fixing mechanism, and a pencil mounting mechanism. The receiving box has a U-shaped plate structure, and one end of the gripping column is connected to the outer wall of the sealing end of the receiving box; a connecting shaft is provided inside the receiving box, and the two sides of the receiving box are connected through the connecting shaft; an annular rotating groove is provided on one side of the receiving box, and locking parts are provided at both ends of the annular rotating groove symmetrically; an internal thread is provided on the inner wall of the smaller annular rotating groove. One end of the fixing foot is inserted into the receiving box and fixedly connected to the receiving box. A fixing hole is provided at one end of the fixing foot. The fixing hole is adapted to the connecting shaft. The connecting shaft is inserted into the fixing hole and fixedly connected to the fixing foot. A first anti-slip pad is provided on the side of the fixing foot that is inserted into the receiving box. One end of the rotating foot is inserted into the receiving box, and a rotating hole is provided at one end of the rotating foot. The rotating hole is adapted to the connecting shaft, and the connecting shaft is inserted into the rotating hole and rotatably connected to the fixed foot. A second anti-slip pad is provided on the side of the rotating foot that is inserted into the receiving box. The first anti-slip pad can abut against the second anti-slip pad. The fixing mechanism includes a rotating receiving plate, two arc-shaped rotating plates, and two rotating handles; the two rotating handles are symmetrically arranged on both sides of the side wall of the rotating receiving plate; the two arc-shaped rotating plates are symmetrically arranged on both sides of one side of the rotating receiving plate; the inner wall of the arc-shaped rotating plate is provided with external threads; the external threads are adapted to the internal threads and are screwed together; a third anti-slip pad is provided at the end of the arc-shaped rotating plate away from the rotating receiving plate; the third anti-slip pad can abut against the rotating foot; the arc-shaped rotating plate is adapted to the annular rotating groove, and the arc-shaped rotating plate is inserted into the annular rotating groove and rotatably connected to the receiving box; The pencil mounting mechanism includes a receiving block, two arc-shaped locking plates, and a limiting component. The receiving block is connected to the end of the rotating foot away from the receiving box. The two arc-shaped locking plates are symmetrically arranged on the receiving block, and a connecting plate is provided at the end of the arc-shaped locking plate away from the receiving block. A through hole is provided on the connecting plate. The limiting component includes a limiting head, a threaded rod, and a movable nut. One end of the threaded rod is connected to the limiting head, the threaded rod is adapted to the through hole, the threaded rod is inserted into the two through holes and screwed to the two connecting plates. The movable nut is adapted to the threaded rod, the movable nut is sleeved on the end of the threaded rod away from the limiting head and screwed to the threaded rod.

[0005] In one embodiment, the limiting head and the threaded rod are integrally formed.

[0006] In one embodiment, the first anti-slip pad is a soft rubber pad.

[0007] In one embodiment, the first anti-slip pad is a soft silicone pad.

[0008] In one embodiment, both of the rotating handles are integrally formed with the rotating support plate.

[0009] In one embodiment, the second anti-slip pad is a soft rubber pad.

[0010] In one embodiment, the second anti-slip pad is a soft silicone pad.

[0011] In one embodiment, the gripping post and the receiving box are integrally formed.

[0012] In one embodiment, the third anti-slip pad is a soft rubber pad.

[0013] In one embodiment, the third anti-slip pad is a soft silicone pad.

[0014] Before drawing a circle using the aforementioned high-stability compass, insert the pencil between the two arc-shaped locking plates. By rotating the movable nut, drive the two connecting plates closer together, thus clamping and fixing the pencil. Adjust the distance between the pencil and the fixed foot by rotating the rotating foot, thereby adjusting the size of the circle. After adjusting the distance between the pencil and the fixed foot, drive the rotating receiving plate to rotate using the two rotating handles, thereby causing the arc-shaped rotating plate to rotate along the annular rotating groove. During the rotation of the arc-shaped rotating plate along the annular rotating groove, it moves closer to the rotating foot, eventually causing the third anti-slip pad on the arc-shaped rotating plate to abut against the rotating foot. This, in turn, causes the second anti-slip pad on the rotating foot to abut against the first anti-slip pad on the fixed foot, thus compressing and fixing the position between the rotating foot and the fixed foot. The aforementioned high-stability compass has high working stability and can fix the position between the rotating foot and the fixed foot, meeting the requirements for accurate circle drawing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a high-stability compass in one embodiment; Figure 2 This is a schematic diagram of the pencil mounting mechanism in one embodiment; Figure 3 This is a partial structural diagram of a high-stability compass in one embodiment; Figure 4 This is a schematic diagram of the receiving box in one embodiment. Detailed Implementation

[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] Please refer to the following: Figures 1 to 4 This utility model provides a high-stability compass 10, which includes: a grip post 100, a receiving box 200, a fixed foot 300, a rotating foot 400, a fixing mechanism 500, and a pencil mounting mechanism 600.

[0022] The receiving box 200 has a U-shaped plate structure, with one end of the gripping post 100 connected to the outer wall of the sealed end of the receiving box 200. In this embodiment, the gripping post 100 and the receiving box 200 are integrally formed. A connecting shaft 210 is provided inside the receiving box 200, and the two sides of the receiving box 200 are connected via the connecting shaft 210. An annular rotating groove 201 is provided on one side of the receiving box 200, and locking portions 220 are provided at both symmetrical ends of the annular rotating groove 201. Internal threads are provided on the smaller inner wall of the annular rotating groove 201.

[0023] One end of the fixing foot 300 is inserted into the receiving box 200 and fixedly connected to it. A fixing hole 301 is provided at one end of the fixing foot 300, which is adapted to the connecting shaft 210. The connecting shaft 210 is inserted into the fixing hole 301 and fixedly connected to the fixing foot 300. A first anti-slip pad 310 is provided on the side of the fixing foot 300 where it is inserted into the receiving box 200. In this embodiment, the first anti-slip pad 310 is a soft rubber pad. In another embodiment, the first anti-slip pad 310 is a soft silicone pad.

[0024] One end of the rotating foot 400 is inserted into the receiving box 200. A rotating hole 401 is provided at one end of the rotating foot 400, which is adapted to the connecting shaft 210. The connecting shaft 210 is inserted into the rotating hole 401 and rotatably connected to the fixed foot 300. A second anti-slip pad 410 is provided on the side of the rotating foot 400 that is inserted into the receiving box 200. In this embodiment, the second anti-slip pad 410 is a soft rubber pad. In another embodiment, the second anti-slip pad 410 is a soft silicone pad. The first anti-slip pad 310 can abut against the second anti-slip pad 410.

[0025] The fixing mechanism 500 includes a rotating receiving plate 510, two arc-shaped rotating plates 520, and two rotating handles 530. The two rotating handles 530 are symmetrically arranged on both sides of the sidewall of the rotating receiving plate 510. In this embodiment, both rotating handles 530 are integrally formed with the rotating receiving plate 510. The two arc-shaped rotating plates 520 are symmetrically arranged on both sides of one side of the rotating receiving plate 510. External threads are provided on the inner wall of the arc-shaped rotating plate 520. The external threads are adapted to the internal threads and are screwed together. A third anti-slip pad 521 is provided at the end of the arc-shaped rotating plate 520 away from the rotating receiving plate 510. In this embodiment, the third anti-slip pad 521 is a soft rubber pad. In another embodiment, the third anti-slip pad 521 is a soft silicone pad. The third anti-slip pad 521 can abut against the rotating foot 400. The arc-shaped rotating plate 520 is adapted to the annular rotating groove 201. The arc-shaped rotating plate 520 is inserted into the annular rotating groove 201 and is rotatably connected to the receiving box 200.

[0026] The pencil mounting mechanism 600 includes a receiving block 610, two arc-shaped locking plates 620, and a limiting component 630. The receiving block 610 is connected to the end of the rotating foot 400 away from the receiving box 200. The two arc-shaped locking plates 620 are symmetrically arranged on the receiving block 610, and a connecting plate 621 is provided at the end of the arc-shaped locking plate 620 away from the receiving block 610. A through hole 601 is provided on the connecting plate 621. The limiting component 630 includes a limiting head 631, a threaded rod 632, and a movable nut 633. One end of the threaded rod 632 is connected to the limiting head 631. In this embodiment, the limiting head 631 and the threaded rod 632 are integrally formed. The threaded rod 632 is adapted to the through hole 601, and the threaded rod 632 is inserted into the two through holes 601 and screwed to the two connecting plates 621. The movable nut 633 is adapted to the threaded rod 632. The movable nut 633 is sleeved on the end of the threaded rod 632 away from the limiting head 631 and is screwed to the threaded rod 632.

[0027] Before drawing a circle using the high-stability compass 10, insert the pencil between the two arc-shaped locking plates 620. By rotating the movable nut 633, drive the two connecting plates 621 closer together, thereby clamping and fixing the pencil between the two arc-shaped locking plates 620. Adjust the distance between the pencil and the fixed foot 300 by rotating the rotating foot 400, thereby adjusting the size of the circle drawn. After adjusting the distance between the pencil and the fixed foot 300, the rotating receiving plate 510 is driven to rotate by the two rotating handles 530, thereby causing the arc-shaped rotating plate 520 to rotate along the annular rotating groove 201. During this rotation, the arc-shaped rotating plate 520 moves closer to the rotating foot 400, ultimately causing the third anti-slip pad 521 on the arc-shaped rotating plate 520 to abut against the rotating foot 400. This, in turn, causes the second anti-slip pad 410 on the rotating foot 400 to abut against the first anti-slip pad 310 on the fixed foot 300, thus compressing and fixing the position between the rotating foot 400 and the fixed foot 300. The aforementioned high-stability compass 10 exhibits high working stability and can fix the position between the rotating foot 400 and the fixed foot 300, meeting the requirements for precise circle drawing. The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A highly stable compass, characterized in that, include: The components include a gripping column, a receiving box, a fixed foot, a rotating foot, a fixing mechanism, and a pencil mounting mechanism. The receiving box has a U-shaped plate structure, and one end of the gripping column is connected to the outer wall of the sealing end of the receiving box; a connecting shaft is provided inside the receiving box, and the two sides of the receiving box are connected through the connecting shaft; an annular rotating groove is provided on one side of the receiving box, and locking parts are provided at both ends of the annular rotating groove symmetrically; an internal thread is provided on the inner wall of the smaller annular rotating groove. One end of the fixing foot is inserted into the receiving box and fixedly connected to the receiving box. A fixing hole is provided at one end of the fixing foot. The fixing hole is adapted to the connecting shaft. The connecting shaft is inserted into the fixing hole and fixedly connected to the fixing foot. A first anti-slip pad is provided on the side of the fixing foot that is inserted into the receiving box. One end of the rotating foot is inserted into the receiving box, and a rotating hole is provided at one end of the rotating foot. The rotating hole is adapted to the connecting shaft, and the connecting shaft is inserted into the rotating hole and rotatably connected to the fixed foot. A second anti-slip pad is provided on the side of the rotating foot that is inserted into the receiving box. The first anti-slip pad can abut against the second anti-slip pad. The fixing mechanism includes a rotating receiving plate, two arc-shaped rotating plates, and two rotating handles; the two rotating handles are symmetrically arranged on both sides of the side wall of the rotating receiving plate; the two arc-shaped rotating plates are symmetrically arranged on both sides of one side of the rotating receiving plate; the inner wall of the arc-shaped rotating plate is provided with external threads; the external threads are adapted to the internal threads and are screwed together; a third anti-slip pad is provided at the end of the arc-shaped rotating plate away from the rotating receiving plate; the third anti-slip pad can abut against the rotating foot; the arc-shaped rotating plate is adapted to the annular rotating groove, and the arc-shaped rotating plate is inserted into the annular rotating groove and rotatably connected to the receiving box; The pencil mounting mechanism includes a receiving block, two arc-shaped locking plates, and a limiting component. The receiving block is connected to the end of the rotating foot away from the receiving box. The two arc-shaped locking plates are symmetrically arranged on the receiving block, and a connecting plate is provided at the end of the arc-shaped locking plate away from the receiving block. A through hole is provided on the connecting plate. The limiting component includes a limiting head, a threaded rod, and a movable nut. One end of the threaded rod is connected to the limiting head, the threaded rod is adapted to the through hole, the threaded rod is inserted into the two through holes and screwed to the two connecting plates. The movable nut is adapted to the threaded rod, the movable nut is sleeved on the end of the threaded rod away from the limiting head and screwed to the threaded rod.

2. The high-stability compass according to claim 1, characterized in that, The limiting head and the threaded rod are integrally formed.

3. The high-stability compass according to claim 1, characterized in that, The first anti-slip pad is a soft rubber pad.

4. The high-stability compass according to claim 1, characterized in that, The first anti-slip pad is a soft silicone pad.

5. The high-stability compass according to claim 1, characterized in that, Both of the rotating handles are integrally formed with the rotating support plate.

6. The high-stability compass according to claim 1, characterized in that, The second anti-slip pad is a soft rubber pad.

7. The high-stability compass according to claim 1, characterized in that, The second anti-slip pad is a soft silicone pad.

8. The high-stability compass according to claim 1, characterized in that, The gripping column and the receiving box are integrally formed.

9. The high-stability compass according to claim 1, characterized in that, The third anti-slip pad is a soft rubber pad.

10. The high-stability compass according to claim 1, characterized in that, The third anti-slip pad is a soft silicone pad.

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