Pen-shaped compasses

Abstract

The utility model discloses a pen type compasses relates to stationery technical field, including compasses seat, first compasses leg and second compasses leg, first compasses leg and second compasses leg are both rotatingly connected with the compasses seat, the bottom end of first compasses leg is equipped with the locating pin, also including drawing pen, the drawing pen is equipped with the locating pin, the first compasses leg is equipped with the locating pin, the second compasses leg is equipped with the locating pin. The second compass supporting leg is provided with a first containing cavity matched with the drawing pen, the drawing pen is detachably connected with the first containing cavity, a lock catch is movably installed on the drawing pen, the first containing cavity is provided with a first buckling position matched with the lock catch, and the second containing cavity is provided with a second buckling position matched with the lock catch. The lock catch is connected with the first buckling position so that the drawing pen can be limited in the first containing cavity, the overall size of the compasses is reduced, the drawing pen is limited in the first containing cavity by arranging the lock catch and the buckling position, disassembly and assembly are labor-saving, and the installation stability is good.

Description

Technical Field

[0001] The present application relates to the technical field of stationery products, and more specifically to a pen-shaped compass. Background Art

[0002] A compass generally includes a compass base and two compass legs, the two compass legs are linked by the compass base, the end of one of the two compass legs is a needle tip for positioning, and the end of the other compass leg is a pen tip for drawing. When using the compass, first open the two compass legs to the required radius, position the needle tip as the center of the circle, and pinch the compass base to rotate so that the pen tip can draw an arc along the radius. Existing compasses are generally formed by installing a pencil on the compass leg to form a pen tip for drawing. The installation of the pencil on the compass leg requires a certain amount of space, which causes the overall size of the compass to be large, inconvenient to store and carry, and the pencil is not firmly fixed. When drawing with the compass, it is not only easy to cause the drawn figure to shift, but also the pencil is easy to shake, affecting the drawing effect. Therefore, the utility model patent with publication number: CN212555621U discloses a compass with a built-in pencil structure, including a first shell and a second shell, the first shell and the second shell are internally hollow structures and are symmetrically arranged, the first shell and the second shell together form a tubular structure with upper and lower openings, the tops of the first shell and the second shell are provided with a pivoting part, the tops of the pivoting parts are provided with a gripping handle, the tops of the first shell are tightly welded with a first connecting end, the tops of the second shell are tightly welded with a second connecting end, an automatic pencil is clamped on the inner side of the first shell, a pressing part is provided on the top of the automatic pencil, a pen tip is provided at the bottom end of the automatic pencil, a limiting block is installed on the outer side of the pressing part, a strip hole is opened on the outer wall of the first shell near the limiting block, and the limiting block The outer side of the compass passes through the strip hole and is slidably connected with the strip hole; this technical solution can reduce the overall volume of the compass by installing the automatic pencil inside the first shell and the second shell, but this solution provides positioning grooves on the bottom inner walls of the first shell and the second shell, and the positioning blocks are tightly welded to the outer walls of both sides of the pen tip, and the positioning blocks are engaged with the positioning grooves to clamp the pen tip, and the pen tip is located at the bottom end of the automatic pencil. This solution only limits the automatic pencil in the first shell by fixing the pen tip, and the limiting reliability is limited. Especially when the first shell and the second shell are relatively rotated to open, the automatic pencil and the first shell are inclined, the top of the automatic pencil is easy to shake, the stability of the automatic pencil in the first shell is poor, and the pen tip is limited by clamping, and the disassembly and assembly of the pen tip is relatively laborious. Utility Model Content

[0003] The technical problem to be solved by the present application is to provide a pen-type compass, which can accommodate a drawing pen by setting a first accommodating cavity in the second compass leg, thereby reducing the overall size of the compass, and limit the drawing pen in the first accommodating cavity by setting a lock and a buckle position, so that disassembly and assembly are labor-saving and the installation stability is good.

[0004] The present application provides a pen-shaped compass, comprising a compass seat, a first compass leg and a second compass leg, wherein the first compass leg and the second compass leg are both rotatably connected to the compass seat, a positioning pin is installed at the bottom end of the first compass leg, and the compass also comprises a drawing pen, wherein the second compass leg is provided with a first accommodating cavity adapted to the drawing pen, the drawing pen is detachably connected to the first accommodating cavity, a lock is movably installed on the drawing pen, the first accommodating cavity is provided with a first buckle position adapted to the lock, and the lock is connected to the first buckle position so that the drawing pen is limited in the first accommodating cavity.

[0005] In the technical solution, the first compass leg and the second compass leg are both adjusted to have a distance therebetween by rotating, thereby controlling the radius of the circle to be drawn; a positioning pin is installed at the bottom end of the first compass leg, and the first compass leg serves as a positioning leg; a first accommodating cavity is provided on the second compass leg, and a drawing pen is accommodated in the first accommodating cavity, thereby reducing the overall size of the compass; a detachable connection is provided between the drawing pen and the first accommodating cavity, and the drawing pen includes but is not limited to a pencil, an automatic pencil, and a color pen; the drawing pen can be taken out and replaced from the first accommodating cavity, which can meet more usage requirements and is particularly suitable for replacing the core of an automatic pencil; a lock is provided on the drawing pen and a first buckle position is provided in the first accommodating cavity, when it is needed When using the drawing pen, first install the drawing pen into the first accommodating cavity, and then apply force to the lock buckle to connect the lock buckle to the first buckle position. The lock buckle is connected to the first buckle position to lock the drawing pen in the first accommodating cavity. The drawing pen is stored in the first accommodating cavity and will not interfere with the use of the first compass leg and the second compass leg. The integrity is better. When the drawing pen needs to be replaced, first apply force to the lock buckle to disengage from the first buckle position. The lock buckle disengages from the first buckle position to unlock the drawing pen and the first accommodating cavity. Then the drawing pen is taken out of the first accommodating cavity for replacement. The drawing pen is limited in the first accommodating cavity by the lock buckle and the first buckle position. Not only does it save effort to disassemble and assemble, but the drawing pen also has better installation stability and does not affect the drawing effect.

[0006] As an improvement, a through hole is provided at the bottom of the first accommodating chamber for the pen tip of the drawing pen to pass through, and the pen tip passes through the through hole and extends out of the first accommodating chamber and is limited by the through hole. In this technical solution, the drawing pen is installed in the first accommodating chamber, and by providing a through hole at the bottom of the first accommodating chamber, the pen tip of the drawing pen passes through the through hole and extends out of the first accommodating chamber to be able to draw, so that the second compass support foot can be used as a drawing support foot, the drawing pen is limited in the first accommodating chamber by the lock buckle and the first buckle position, the pen tip of the drawing pen can be limited in the first accommodating chamber through the through hole, the drawing pen has a limiting structure at the top and bottom, the drawing pen has good installation stability, and is not easy to shake during use.

[0007] As an improvement, the outer wall of the drawing pen is provided with a mounting groove adapted to the lock buckle, and the lock buckle is slidably installed and limited in the mounting groove. In the technical solution, a lock buckle is slidably installed on the drawing pen, and the lock buckle is connected or disengaged with the first buckle position by sliding up and down. The lock buckle is connected with the first buckle position by sliding to lock the drawing pen in the first accommodating cavity, and the lock buckle is disengaged from the first buckle position by sliding in the opposite direction to unlock the drawing pen from the first accommodating cavity. The sliding locking and unlocking method is simpler, more labor-saving and more efficient to use. By providing a mounting groove on the drawing pen to slide and install the lock buckle, the mounting groove has a sliding guiding effect on the lock buckle, thereby improving the sliding efficiency of the lock buckle, and the lock buckle is located in the mounting groove and can limit the sliding range through the mounting groove to prevent the lock buckle from sliding out of the drawing pen. The user's sliding lock buckle has a shorter stroke, which is more labor-saving and convenient to use.

[0008] As an improvement, the first accommodating cavity is provided with an opening on one side close to the first compass leg, and the drawing pen enters or leaves the first accommodating cavity through the opening, and the first buckle position is a raised structure arranged on both sides of the opening. In the present technical solution, by arranging the opening laterally on the first accommodating cavity, the drawing pen can enter or leave the first accommodating cavity through the opening laterally, and the opening arranged laterally is more suitable for the size of the drawing pen, so that the installation of the drawing pen is more labor-saving and quick, and the opening is arranged on the side close to the first compass leg, and the first compass leg and the second compass leg can completely store the drawing pen when they are rotated and closed, which is not only aesthetically pleasing, but also conducive to reducing the overall size of the compass; by setting the first buckle position as a raised structure on both sides of the opening, the first buckle position has a simple structure and has a high efficiency in matching with the lock.

[0009] As an improvement, the outer wall of the lock buckle is provided with a first protrusion adapted to the first buckle position, and the lock buckle slides so that the first protrusion vertically abuts against the first buckle position to slide and limit the position. When the latch is in the locked state, the first protrusion is in contact with the bottom of the latch and the first protrusion is in contact with the bottom of the latch, so that the latch is locked.

[0010] As an improvement, the outer wall of the lock buckle is provided with a second protrusion adapted to the first buckle position, and the lock buckle slides so that the second protrusion abuts laterally with the first buckle position to limit the drawing pen in the first accommodating chamber. In this technical solution, by providing a second protrusion on the lock buckle, the lock buckle is driven by force to slide the second protrusion, and the second protrusion slides downward to abut laterally with the first buckle position so that the lock buckle is laterally limited in the first accommodating chamber. The side wall of the first accommodating chamber is provided with an opening to laterally install the drawing pen. The second protrusion cooperates with the first buckle position to prevent the drawing pen from leaving the first accommodating chamber through the opening, thereby realizing the lateral limitation of the lock buckle and the drawing pen, with a simple structure, labor-saving use, and reliable locking; in this application, the first protrusion and the second protrusion both cooperate with the first buckle position to lock the lock buckle, so that the drawing pen is installed in the first accommodating chamber more stably and reliably.

[0011] As an improvement, the installation groove is provided with a third protrusion, and the inner wall of the lock buckle is provided with a recess that matches the third protrusion. The lock buckle slides to connect the recess with the third protrusion to be positioned on the drawing pen. In this technical solution, the lock buckle is slidably installed in the installation groove, and the drawing pen is installed in the first accommodating cavity and connected and locked with the first buckle position by sliding the lock buckle downward. When the drawing pen is not installed, the lock buckle will slide downward by itself due to the force of its own weight, so that the drawing pen cannot be installed in the first accommodating cavity. At this time, the user needs to manually slide the lock buckle upward, which is more laborious to use. In this solution, by providing a third protrusion on the installation groove and a recess on the inner wall of the lock buckle, the lock buckle is slid upward in the installation groove by applying force to the lock buckle. The recess on the lock buckle is connected to the third protrusion by sliding upward, and the recess and the third protrusion cooperate with the sliding limit lock buckle. The lock buckle can be positioned on the drawing pen, so that the lock buckle will not slide down by itself to interfere with the installation of the drawing pen, and the assembly is more labor-saving.

[0012] As an improvement, the lock is installed on the side of the drawing pen close to the first compass leg, and the first compass leg is provided with a second accommodating cavity adapted to the lock, and when the first compass leg and the second compass leg are rotated and closed, the lock is accommodated in the second accommodating cavity. In this technical solution, the lock is arranged between the first compass leg and the second compass leg, and the second compass leg receives the drawing pen through the first accommodating groove. By providing a second accommodating groove capable of receiving the lock on the first compass leg, the lock can be accommodated in the second accommodating groove when the first compass leg and the second compass leg are rotated and closed, so that the first compass leg and the second compass leg can be completely closed, thereby reducing the storage size of the compass.

[0013] As an improvement, the cross-sections of the first compass leg and the second compass leg are both semicircular, and the first compass leg and the second compass leg are rotated and closed to form a pen shape. In the technical solution, the cross-sections of the first compass leg and the second compass leg are both roughly semicircular, so that the first compass leg and the second compass leg can be completely closed and form a pen shape, which not only has better aesthetics, but also helps to reduce the size of the compass.

[0014] As an improvement, a protective cover is further included, and the bottom ends of the first compass leg and the second compass leg are rotated and closed to be stored through the protective cover. In this technical solution, considering that after the compass is used, the tip of the positioning needle is easy to prick people, which poses a safety hazard in use. On the other hand, when stored, the needle tip and the pen tip may be bent or broken, affecting the service life. Therefore, a protective cover is provided to cover the bottom ends of the first compass leg and the second compass leg, thereby protecting the needle tip and the pen tip and extending the service life of the compass. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a pen-shaped compass in the present application.

[0016] Figure 2 This is an exploded schematic diagram of a pen-shaped compass according to the present application.

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the second compass leg, drawing pen and lock in this application.

[0018] Figure 4 For this application Figure 3 A local enlarged schematic diagram of point A in the middle.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the drawing pen and the lock in this application.

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the lock in this application.

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the first compass leg in this application.

[0022] As shown in the figure: 1. compass seat; 2. first compass leg; 21. positioning pin; 22. second accommodating cavity; 3. second compass leg; 31. first accommodating cavity; 311. first buckle position; 312. through hole; 4. drawing pen; 41. mounting groove; 411. third protrusion; 5. locking buckle; 51. first protrusion; 52. second protrusion; 53. depression; 6. protective cover. DETAILED DESCRIPTION

[0023] In order to better understand the present application, a more detailed description of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0024] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0025] It should also be understood that the terms “comprises,” “including,” “has,” “contains,” and “comprising,” when used in this specification, indicate the presence of the described features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.

[0026] like Figures 1 to 7 As shown, the present application discloses a pen-shaped compass, including a compass seat 1, a first compass leg 2 and a second compass leg 3, the first compass leg 2 and the second compass leg 3 are both rotatably connected to the compass seat 1, a positioning pin 21 is installed at the bottom end of the first compass leg 2, and also includes a drawing pen 4, the second compass leg 3 is provided with a first accommodating cavity 31 adapted to the drawing pen 4, the drawing pen 4 is detachably connected to the first accommodating cavity 31, the first compass leg 2 and the second compass leg 3 are both adjusted by rotating to adjust the distance between each other, so as to control the required The radius of the drawn circle is set, and a positioning pin 21 is installed at the bottom end of the first compass leg 2. The first compass leg 2 is used as a positioning leg. A first accommodating cavity 31 is set on the second compass leg 3. The drawing pen 4 is accommodated by the first accommodating cavity 31, thereby reducing the overall size of the compass. The drawing pen 4 is detachably connected to the first accommodating cavity 31. The drawing pen 4 includes but is not limited to a pencil, an automatic pencil, and a color pen. The drawing pen 4 can be taken out and replaced from the first accommodating cavity 31, which can meet more usage needs and is particularly suitable for changing the core of an automatic pencil.

[0027] The drawing pen 4 is movably provided with a lock buckle 5, and the first accommodating chamber 31 is provided with a first buckle position 311 adapted to the lock buckle 5. The lock buckle 5 is connected with the first buckle position 311 so that the drawing pen 4 is limited in the first accommodating chamber 31. By providing the lock buckle 5 on the drawing pen 4 and providing the first buckle position 311 in the first accommodating chamber 31, when the drawing pen 4 needs to be used, the drawing pen 4 is first installed in the first accommodating chamber 31, and then force is applied to the lock buckle 5 so that the lock buckle 5 is connected to the first buckle position 311. The lock buckle 5 is connected with the first buckle position 311 to lock the drawing pen 4 in the first accommodating chamber 31, and the drawing pen 4 is locked in the first accommodating chamber 31. The pen 4 is stored in the first accommodating cavity 31 without interfering with the use of the first compass leg 2 and the second compass leg 3, and the integrity is better. When the drawing pen 4 needs to be replaced, force is first applied to the lock buckle 5 to disengage the lock buckle 5 from the first buckle position 311. The lock buckle 5 disengages from the first buckle position 311 to unlock the drawing pen 4 and the first accommodating cavity 31, and then the drawing pen 4 is taken out from the first accommodating cavity 31 and replaced. The drawing pen 4 is limited in the first accommodating cavity 31 through the lock buckle 5 and the first buckle position 311. Not only does it save effort to disassemble and assemble, but the drawing pen 4 is also installed stably and does not affect the drawing effect.

[0028] More specifically, Figure 2 and Figure 3 As shown, a through hole 312 is provided at the bottom of the first accommodating chamber 31 for the tip of the drawing pen 4 to pass through. The tip of the drawing pen 4 passes through the through hole 312 and extends out of the first accommodating chamber 31 and is limited by the through hole 312. The drawing pen 4 is installed in the first accommodating chamber 31. By providing the through hole 312 at the bottom of the first accommodating chamber 31, the tip of the drawing pen 4 passes through the through hole 312 and extends out of the first accommodating chamber 31 to be able to draw, so that the second compass support leg 3 can be used as a drawing support leg. The drawing pen 4 is limited in the first accommodating chamber 31 by the lock buckle 5 and the first buckle position 311. The tip of the drawing pen 4 can be limited in the first accommodating chamber 31 through the through hole 312. The drawing pen 4 has limiting structures at the top and bottom. The drawing pen 4 has good installation stability and is not easy to shake during use.

[0029] More specifically, Figure 5As shown, the outer wall of the drawing pen 4 is provided with a mounting groove 41 adapted to the lock buckle 5, the lock buckle 5 is slidably installed and limited in the mounting groove 41, and the lock buckle 5 is slidably installed on the drawing pen 4, and the lock buckle 5 is connected or disengaged with the first buckle position 311 by sliding up and down, and the lock buckle 5 is connected with the first buckle position 311 by sliding to lock the drawing pen 4 in the first accommodating cavity 31, and the lock buckle 5 is disengaged from the first buckle position 311 by reverse sliding to unlock the drawing pen 4 from the first accommodating cavity 31. The sliding locking and unlocking method is simpler, more labor-saving and more efficient to use. By providing the mounting groove 41 on the drawing pen 4 to slide the lock buckle 5, the mounting groove 41 has a sliding guiding effect on the lock buckle 5, thereby improving the sliding efficiency of the lock buckle 5, and the lock buckle 5 is located in the mounting groove 41 and can limit the sliding range through the mounting groove 41 to prevent the lock buckle 5 from sliding away from the drawing pen 4. The user's sliding stroke of the lock buckle 5 is shorter, and it is more labor-saving and convenient to use.

[0030] More specifically, Figure 2 and Figure 3 As shown, an opening is provided on one side of the first accommodating cavity 31 close to the first compass leg 2, and the drawing pen 4 enters or leaves the first accommodating cavity 31 through the opening, and the first buckle position 311 is a raised structure provided on both sides of the opening, and by laterally providing the opening on the first accommodating cavity 31, the drawing pen 4 can enter or leave the first accommodating cavity 31 through the opening along the side, and the laterally provided opening is more suitable for the size of the drawing pen 4, so that the installation of the drawing pen 4 is more labor-saving and quick, and the opening is provided on the side close to the first compass leg 2, and the first compass leg 2 and the second compass leg 3 can completely accommodate the drawing pen 4 when they are rotated and closed, which is not only aesthetically pleasing, but also conducive to reducing the overall size of the compass; by setting the first buckle position 311 as the raised structure on both sides of the opening, the first buckle position 311 has a simple structure and has a high efficiency in matching with the lock buckle 5.

[0031] More specifically, Figures 3 to 5As shown, the outer wall of the lock buckle 5 is provided with a first protrusion 51 adapted to the first buckle position 311, and the lock buckle 5 slides so that the first protrusion 51 vertically abuts against the first buckle position 311 to slide and limit the position. By providing the first protrusion 51 on the lock buckle 5, the lock buckle 5 is forced to drive the first protrusion 51 to slide, and the first protrusion 51 slides downward to tightly match the first buckle position 311 so that the lock buckle 5 is slid and locked. When the lock buckle 5 slides to the lowermost end along the installation groove 41, the bottom of the lock buckle 5 abuts against the bottom of the installation groove 41 to limit the lock buckle 5 from continuing to slide down, and the first protrusion 51 slides downward to pass through the first buckle position 311. The first protrusion 51 abuts against the first buckle position 311 up and down to limit the lock buckle 5 from sliding up, thereby realizing vertical limiting of the lock buckle 5, with a simple structure, labor-saving use, and reliable locking; in the present application, the first buckle position 311 is a protrusion structure arranged on both sides of the opening, and the first buckle position 311 is elastic through the opening. When the lock buckle 5 is forced to slide upward, it drives the first protrusion 51 to slide synchronously. The first buckle position 311 will produce elastic deformation under the action of the first protrusion 51, so that the first protrusion 51 can pass through the first buckle position 311 and disengage from the first buckle position 311, thereby realizing vertical unlocking of the lock buckle 5, and the unlocking is simple and labor-saving.

[0032] More specifically, Figures 3 to 5 As shown, the outer wall of the lock buckle 5 is provided with a second protrusion 52 adapted to the first buckle position 311, and the lock buckle 5 slides so that the second protrusion 52 is laterally abutted against the first buckle position 311 to limit the drawing pen 4 in the first accommodating chamber 31. By providing the second protrusion 52 on the lock buckle 5, the lock buckle 5 is driven by force to slide the second protrusion 52, and the second protrusion 52 slides downward to laterally abut against the first buckle position 311, so that the lock buckle 5 is laterally limited in the first accommodating chamber 31, and the side wall of the first accommodating chamber 31 is provided with an opening to laterally install the drawing pen 4, and the second protrusion 52 cooperates with the first buckle position 311 to prevent the drawing pen 4 from escaping from the first accommodating chamber 31 through the opening, thereby realizing the lateral limitation of the lock buckle 5 and the drawing pen 4, with a simple structure, labor-saving use, and reliable locking; in the present application, the first protrusion 51 and the second protrusion 52 both cooperate with the first buckle position 311 to lock the lock buckle 5, so that the drawing pen 4 is installed in the first accommodating chamber 31 more stably and reliably.

[0033] More specifically, Figures 3 to 6As shown, the installation groove 41 is provided with a third protrusion 411, and the inner wall of the lock buckle 5 is provided with a recess 53 adapted to the third protrusion 411. The lock buckle 5 slides so that the recess 53 is connected with the third protrusion 411 to be positioned on the drawing pen 4. The lock buckle 5 is slidably installed in the installation groove 41. The drawing pen 4 is installed in the first accommodating cavity 31 and is connected and locked with the first buckle position 311 by sliding the lock buckle 5 downward. When the drawing pen 4 is not installed, the lock buckle 5 will slide downward by itself under the force of its own weight, so that the drawing pen 4 cannot be installed in the first accommodating cavity 31. At this time, the user needs to manually slide the lock buckle 5 upward, which is quite laborious to use. In this solution, a third protrusion 411 is set on the installation groove 41, and a recess 53 is set on the inner wall of the lock buckle 5. By applying force to the lock buckle 5, the lock buckle 5 slides upward in the installation groove 41, and the recess 53 on the lock buckle 5 is connected to the third protrusion 411 by sliding upward. The recess 53 and the third protrusion 411 cooperate to form a sliding limit lock buckle 5. The lock buckle 5 can be positioned on the drawing pen 4, so that the lock buckle 5 will not slide down by itself to interfere with the installation of the drawing pen 4, and the assembly is more labor-saving.

[0034] More specifically, Figure 2 , Figure 3 and Figure 7 As shown, the lock buckle 5 is installed on the side of the drawing pen 4 close to the first compass leg 2, and the first compass leg 2 is provided with a second accommodating cavity 22 adapted to the lock buckle 5. When the first compass leg 2 and the second compass leg 3 are rotated and closed, the lock buckle 5 is accommodated in the second accommodating cavity 22. The lock buckle 5 is arranged between the first compass leg 2 and the second compass leg 3, and the second compass leg 3 receives the drawing pen 4 through the first accommodating groove. By providing a second accommodating groove capable of accommodating the lock buckle 5 on the first compass leg 2, the lock buckle 5 can be accommodated in the second accommodating groove when the first compass leg 2 and the second compass leg 3 are rotated and closed, so that the first compass leg 2 and the second compass leg 3 can be completely closed, thereby reducing the compass storage size.

[0035] More specifically, Figure 1 and Figure 2 As shown, the cross-sections of the first compass leg 2 and the second compass leg 3 are both semicircular, and the first compass leg 2 and the second compass leg 3 are rotated and closed to form a pen shape. The cross-sections of the first compass leg 2 and the second compass leg 3 are arranged to be roughly semicircular, so that the first compass leg 2 and the second compass leg 3 can be completely closed and form a pen shape, which not only has better aesthetics, but also helps to reduce the size of the compass.

[0036] More specifically, Figure 1 and Figure 2As shown, it also includes a protective cover 6. The bottom ends of the first compass leg 2 and the second compass leg 3 are rotated and closed to be stored through the protective cover 6. Considering that after the compass is used, the needle tip of the positioning needle 21 is easy to prick people, which poses a safety hazard in use. On the other hand, when storing, the needle tip and the pen tip are likely to be bent or broken, affecting the service life. Therefore, the protective cover 6 is provided to cover the bottom ends of the first compass leg 2 and the second compass leg 3, so as to protect the needle tip and the pen tip and extend the service life of the compass.

[0037] The present application is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present application. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present application.

Claims

1. A pen-shaped compass, comprising a compass base (1), a first compass support leg (2) and a second compass support leg (3), wherein the first compass support leg (2) and the second compass support leg (3) are both rotatably connected to the compass base (1), and a positioning pin (21) is installed at the bottom end of the first compass support leg (2), characterized in that: The invention also comprises a drawing pen (4), wherein the second compass support leg (3) is provided with a first accommodating cavity (31) adapted to the drawing pen (4), the drawing pen (4) is detachably connected to the first accommodating cavity (31), a lock buckle (5) is movably mounted on the drawing pen (4), the first accommodating cavity (31) is provided with a first buckle position (311) adapted to the lock buckle (5), and the lock buckle (5) is connected to the first buckle position (311) so that the drawing pen (4) is limited in the first accommodating cavity (31).

2. A pen-shaped compass according to claim 1, characterized in that: The bottom of the first accommodating cavity (31) is provided with a through hole (312) for the pen tip of the drawing pen (4) to pass through, and the pen tip passes through the through hole (312) to extend out of the first accommodating cavity (31) and is limited by the through hole (312).

3. A pen-shaped compass according to claim 1, characterized in that: The outer wall of the drawing pen (4) is provided with a mounting groove (41) adapted to the lock buckle (5), and the lock buckle (5) is slidably mounted and limited in the mounting groove (41).

4. A pen-shaped compass according to claim 3, characterized in that: The first accommodating cavity (31) is provided with an opening on one side close to the first compass support leg (2), and the drawing pen (4) enters or leaves the first accommodating cavity (31) through the opening. The first buckle position (311) is a protruding structure provided on both sides of the opening.

5. A pen-shaped compass according to claim 3 or 4, characterized in that: The outer wall of the lock buckle (5) is provided with a first protrusion (51) adapted to the first buckle position (311), and the lock buckle (5) slides so that the first protrusion (51) and the first buckle position (311) are vertically abutted to slide and limit.

6. A pen-shaped compass according to claim 3 or 4, characterized in that: The outer wall of the lock buckle (5) is provided with a second protrusion (52) adapted to the first buckle position (311), and the lock buckle (5) slides so that the second protrusion (52) and the first buckle position (311) are laterally abutted to limit the drawing pen (4) in the first accommodating cavity (31).

7. A pen-shaped compass according to claim 3 or 4, characterized in that: The mounting groove (41) is provided with a third protrusion (411), and the inner wall of the lock buckle (5) is provided with a recess (53) adapted to the third protrusion (411). The lock buckle (5) is positioned on the drawing pen (4) by sliding so that the recess (53) is connected to the third protrusion (411).

8. A pen-shaped compass according to claim 4, characterized in that: The lock buckle (5) is installed on the side of the drawing pen (4) close to the first compass leg (2); the first compass leg (2) is provided with a second accommodating cavity (22) adapted to the lock buckle (5); when the first compass leg (2) and the second compass leg (3) are rotated and closed, the lock buckle (5) is accommodated in the second accommodating cavity (22).

9. A pen-shaped compass according to claim 1 or 8, characterized in that: The cross-sections of the first compass support leg (2) and the second compass support leg (3) are both semicircular, and the first compass support leg (2) and the second compass support leg (3) are folded together to form a pen shape.

10. A pen-shaped compass according to claim 1, characterized in that: It also includes a protective cover (6), and the bottom ends of the first compass leg (2) and the second compass leg (3) are rotated and closed to be stored through the protective cover (6).

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