Compass ruler with replaceable inner disc

Abstract

The utility model discloses a compass ruler with a replaceable inner disc, which comprises a circular ring part and a disc part, the disc part is clamped with the inner circle of the circular ring part, the inner side of the circular ring part is provided with a clamping ring, and the outer side of the disc part is provided with a disc upper pressing edge and a fixing buckle. When the disc part and the circular ring part are clamped, the disc upper pressing edge is clamped on the upper end face of the clamping ring, the fixing buckle is clamped on the lower end face of the clamping ring, and the circular ring part and the disc part can rotate relatively. According to the technical scheme that the disc upper pressing edge of the disc part, the fixing buckle and the clamping ring of the circular ring part are connected in a clamped mode, the technical scheme that a user can replace different disc parts according to the needs of the user is achieved, and the problems that a locking structure of an inner disc and an outer circular ring of an existing compasses ruler is fixed and cannot be used for locking the inner disc and the outer circular ring are solved. The problem that a user cannot replace different inner plates according to needs is solved.

Description

Technical Field

[0001] The utility model relates to the field of rulers, in particular to a compass ruler with a replaceable inner disc. Background Art

[0002] The inner disc of the compass ruler can rotate, facilitating the drawing of accurate angles and circles, and can be used to perform the following tasks:

[0003] 1. Drawing angles: Specific angles can be accurately measured and drawn, which is suitable for geometric operations and technical drawing.

[0004] 2. Drawing circles: By using the rotating inner disc, circles with different radii can be easily drawn.

[0005] 3. Drawing arcs and circular arcs: In addition to complete circles, partial arcs can also be drawn.

[0006] 4. Mathematics and geometry drawing: It is suitable for various drawing requirements in mathematics and geometry classes.

[0007] 5. Design and drawing: It can help architects, engineers, and designers draw accurate graphics and angles on drawings.

[0008] 6. Art and handicrafts: Artists and handicraft enthusiasts can use it to create symmetrical designs and complex patterns.

[0009] The versatility of this tool makes it a useful tool for students, professionals, and art enthusiasts. The locking structure between the inner disc and the outer ring of the existing compass ruler is fixed, and users cannot replace different inner discs according to their needs. Content of the Utility Model

[0010] The utility model discloses a compass ruler with a replaceable inner disc, including: a ring part and a disc part. The disc part is clamped with the inner circle of the ring part. A snap ring is arranged on the inner side of the ring part, and a disc upper pressing edge and a fixed buckle are arranged on the outer side of the disc part. When the disc part is clamped with the ring part, the disc upper pressing edge is stuck on the upper end face of the snap ring, and the fixed buckle is stuck on the lower end face of the snap ring. The ring part and the disc part can rotate relative to each other. The technical solution of the utility model realizes the technical solution that users can replace different disc parts according to their needs through the clamping of the disc upper pressing edge and the fixed buckle of the disc part with the snap ring of the ring part, and solves the problem that the locking structure between the inner disc and the outer ring of the existing compass ruler is fixed, and users cannot replace different inner discs according to their needs.

[0011] To achieve the above object, the utility model adopts the following technical solutions:

[0012] The utility model discloses a compass ruler with a replaceable inner disc, which comprises a ring part and a disc part. The disc part is clamped with the inner circle of the ring part. The inner side of the ring part is provided with a snap ring. The outer side of the disc part is provided with a disc upper pressing edge and a fixed buckle. When the disc part is clamped with the ring part, the disc upper pressing edge is clamped on the upper end face of the snap ring, and the fixed buckle is clamped on the lower end face of the snap ring. The ring part and the disc part can rotate relatively.

[0013] Furthermore, the upper surface of the ring part is provided with a ring-shaped angle scale, and the ring part is internally provided with reinforcing ribs.

[0014] Furthermore, a disc inner drawing frame is arranged inside the disc part.

[0015] Through the technical scheme of clamping the disc upper pressing edge and the fixed buckle of the disc part with the snap ring of the ring part, the utility model realizes the technical scheme that the user can replace different disc parts according to the needs of the user, and solves the problem that the locking structure between the inner disc and the outer ring of the existing compass ruler is fixed, and the user cannot replace different inner discs according to the needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the top view of the utility model;

[0017] Figure 2 is the bottom view of the utility model;

[0018] Figure 3 is Figure 1 the sectional view with the A cutting line as the reference in

[0019] Figure 4 is Figure 1 the sectional view with the B cutting line as the reference in

[0020] In the figure: the ring part 1, the snap ring 11, the ring-shaped angle scale 12, the reinforcing rib 13,

[0021] the disc part 2, the disc upper pressing edge 21, the fixed buckle 22, the disc inner drawing frame 23, DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the above objects, features and advantages of the utility model more obvious and understandable, the following detailed description of the specific embodiments of the utility model is made with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to fully understand the utility model, but the utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed below.

[0024] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of description, the cross-sectional views showing the device structure will be locally enlarged out of the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0025] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] According to the content of the claims and the description, the specific embodiments are as follows:

[0027] A compass ruler with a replaceable inner disc, comprising: an annular part 1 and a disc part 2. The disc part 2 is snap-fitted with the inner circle of the annular part 1. On the inner side of the annular part 1, there is provided: a snap ring 11. On the outer side of the disc part 2, there are provided: a disc upper pressing edge 21 and a fixed buckle 22. When the disc part 2 is snap-fitted with the annular part 1, the disc upper pressing edge 21 is stuck on the upper end surface of the snap ring 11, and the fixed buckle 22 is stuck on the lower end surface of the snap ring 11. The annular part 1 and the disc part 2 can rotate relative to each other.

[0028] Preferably, a disc inner drawing frame 23 is provided inside the disc part 2. Different disc inner drawing frames 23 are provided inside the disc part 2 to meet different drawing needs.

[0029] The present utility model realizes the technical solution that the user can replace the disc part 2 with different disc inner drawing frames 23 according to the user's needs through the technical solution of snap-fitting the disc upper pressing edge and the fixed buckle of the disc part with the snap ring of the annular part, and solves the problem that the locking structure between the inner disc and the outer ring of the existing compass ruler is fixed and the user cannot replace different inner discs according to the needs.

[0030] Preferably, on the upper surface of the annular part 1, there is provided: a ring-shaped angle scale 12, and a reinforcing rib 13 is provided inside the annular part 1.

[0031] Although the present utility model has been described above with reference to the embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present utility model can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A compass ruler with a replaceable inner disc, characterized in that, Comprising: A circular ring part (1) and a disc part (2), the disc part (2) is clamped with the inner circle of the circular ring part (1). On the inner side of the circular ring part (1), there is provided: a snap ring (11). On the outer side of the disc part (2), there are provided: a disc upper bead (21) and a fixing buckle (22). When the disc part (2) is clamped with the circular ring part (1), the disc upper bead (21) is stuck on the upper end face of the snap ring (11), and the fixing buckle (22) is stuck on the lower end face of the snap ring (11). The circular ring part (1) and the disc part (2) can rotate relatively, and the disc part (2) inside the circular ring part (1) is replaceable.

2. The compass ruler with a replaceable inner disk according to claim 1, wherein: On the upper surface of the circular ring part (1), there is provided: a circular angle scale (12), and reinforcing ribs (13) are arranged inside the circular ring part (1).

3. A compass ruler with a replaceable inner disc according to claim 1, characterized in that: Inside the disc part (2), there is a disc inner drawing frame (23).

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