Compasses

Abstract

The utility model discloses compasses which comprise a first compasses leg, a second compasses leg, a transmission structure and a fine adjustment structure. One end of the first compasses leg, one end of the second compasses leg and the fine adjustment structure are meshed with the transmission structure, so that the first compasses leg and the second compasses leg are rotationally connected, and when the fine adjustment structure drives the transmission structure to rotate, the transmission structure drives the first compasses leg and the second compasses leg to rotate relatively to be unfolded or folded. When the fine adjustment structure of the compasses drives the transmission structure to rotate, the transmission structure drives the first compasses leg and the second compasses leg to rotate relatively to be unfolded or folded, so that the distance between the first compasses leg and the second compasses leg can be finely adjusted through the fine adjustment structure, and the drawing precision is improved.

Description

Technical Field

[0001] The utility model relates to a compass. Background Art

[0002] A compass is a common learning tool. When using it, users can draw circles and arcs by opening the two compass legs.

[0003] However, it is difficult to fine-tune the distance between the two compass legs with traditional compasses. Applying slightly more or less force will cause the distance between the two compass legs to be too large or too small, affecting the drawing accuracy. Utility Model Content

[0004] Based on this, it is necessary to provide a compass that can solve the above problems.

[0005] A compass comprises a first compass foot, a second compass foot, a transmission structure and a fine-tuning structure;

[0006] One end of the first compass foot, one end of the second compass foot and the fine-tuning structure are all engaged with the transmission structure, so that the first compass foot and the second compass foot are rotatably connected, and when the fine-tuning structure drives the transmission structure to rotate, the transmission structure drives the first compass foot and the second compass foot to rotate relative to each other to open or close.

[0007] In one embodiment, the compass also includes a shell arranged at one end of the first compass foot and one end of the second compass foot, and a locking structure arranged on the shell, the locking structure includes an unlocking member, a locking member connected to the unlocking member, and an elastic member respectively connected to the shell and the locking member, the elastic member is in an elastic deformation state, thereby driving the locking member to move to abut against the fine-tuning structure, and the unlocking member is used to drive the locking member to move in a direction away from the fine-tuning structure.

[0008] In one embodiment, the unlocking member is provided with an unlocking portion that contacts the locking member, and the locking member is provided with an unlocking mating portion that contacts the unlocking portion. At least one of the unlocking portion and the unlocking mating portion is a curved surface or an inclined surface, so that when the unlocking member presses the locking member, the locking member moves in a direction away from the fine-tuning structure.

[0009] In one embodiment, the locking member is rod-shaped, and one end of the locking member close to the fine-tuning structure is enlarged to form an abutment portion, and the elastic member is a spring sleeved on the locking member, and the elastic member elastically abuts against the abutment portion and the shell respectively.

[0010] In one embodiment, the locking structure further includes a soft pad provided on the abutting portion, and the abutting portion abuts against the fine-tuning structure through the soft pad.

[0011] In one embodiment, the fine-tuning structure includes a driving member engaged with the transmission structure and a display member connected to the driving member, and when the driving member drives the transmission structure to rotate, the display member is driven to rotate;

[0012] The display element and the shell are respectively provided with an indicating portion and a scale.

[0013] In one embodiment, the compass further comprises a handle sleeved on the driving member, and the handle rotates to drive the driving member to rotate.

[0014] In one embodiment, the display member is in the shape of a disk mounted on the driving member, and the outer shell is further provided with an elastic ejector pin. A side of the display member close to the elastic ejector pin is provided with a plurality of radial grooves in a ring shape. When the display member rotates, the elastic ejector pin sequentially passes through several of the radial grooves.

[0015] In one embodiment, the transmission structure includes a first double gear and a second double gear;

[0016] The fine-tuning structure is provided with a first tooth, the first double gear is provided with a second tooth and a third tooth, the second double gear is provided with a fourth tooth and a fifth tooth, one end of the first compass foot is provided with a sixth tooth, and one end of the second compass foot is provided with a seventh tooth;

[0017] The first tooth meshes with the second tooth, the third tooth meshes with the fourth tooth, the fifth tooth, the sixth tooth and the seventh tooth are all bevel teeth, and the sixth tooth and the seventh tooth mesh with the fifth tooth respectively.

[0018] In one embodiment, the first teeth are stacked on the fourth teeth at intervals, and there are two second double gears.

[0019] In one embodiment, the compass further includes a compass cap mounted on the other end of the first compass leg and the other end of the second compass leg, and an adsorption fixing structure is provided on the end of the compass cap away from the first compass leg.

[0020] In one embodiment, the adsorption fixing structure is a soft suction cup, and an operating portion for releasing adsorption is provided on the periphery of the adsorption fixing structure.

[0021] When the fine-tuning structure of this compass drives the transmission structure to rotate, the transmission structure drives the first compass foot and the second compass foot to rotate relative to each other to open or close, so that the distance between the first compass foot and the second compass foot can be fine-tuned by the fine-tuning structure, thereby improving the drawing accuracy.

[0022] Compared with traditional compasses, the present invention can achieve fine-tuning of the distance between the first compass foot and the second compass foot through the fine-tuning structure, thereby improving drawing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a schematic diagram of the three-dimensional structure of a compass in one direction according to one embodiment.

[0024] Figure 2 For example Figure 1 An exploded diagram of one direction of the compass is shown.

[0025] Figure 3 For example Figure 1 A schematic diagram of the exploded view of the partial structure of the compass from another direction is shown. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] Combine Figure 1 、 Figure 2 and Figure 3 The utility model discloses a compass of one embodiment, including a first compass foot 10, a second compass foot 20, a transmission structure 30 and a fine-tuning structure 40.

[0028] One end of the first compass foot 10, one end of the second compass foot 20 and the fine-tuning structure 40 are all engaged with the transmission structure 30, so that the first compass foot 10 and the second compass foot 20 are rotatably connected, and when the fine-tuning structure 40 drives the transmission structure 30 to rotate, the transmission structure 30 drives the first compass foot 10 and the second compass foot 20 to rotate relative to each other to open or close.

[0029] When the fine-tuning structure 40 of this compass drives the transmission structure 30 to rotate, the transmission structure 30 drives the first compass foot 10 and the second compass foot 20 to rotate relative to each other to open or close, so that the distance between the first compass foot 10 and the second compass foot 20 can be fine-tuned through the fine-tuning structure 40, thereby improving the drawing accuracy.

[0030] Compared with traditional compasses, the present invention can achieve fine-tuning of the distance between the first compass foot 10 and the second compass foot 20 through the fine-tuning structure 40, thereby improving drawing accuracy.

[0031] Preferably, in combination with the accompanying drawings, in this embodiment, the compass also includes a shell 50 arranged at one end of the first compass foot 10 and one end of the second compass foot 20, and a locking structure 60 arranged on the shell 50, the locking structure 60 includes an unlocking member 62, a locking member 64 connected to the unlocking member 62, and an elastic member 66 respectively connected to the shell 50 and the locking member 64, the elastic member 66 is in an elastic deformation state, thereby driving the locking member 64 to move to abut against the fine-tuning structure 40, and the unlocking member 62 is used to drive the locking member 64 to move in a direction away from the fine-tuning structure 40.

[0032] When the locking member 64 abuts against the fine-tuning structure 40 , the fine-tuning structure 40 is difficult to rotate, that is, the user cannot manually drive the fine-tuning structure 40 to rotate, but the user can manually realize the relative rotation of the first compass foot 10 and the second compass foot 20 .

[0033] The locking member 62 is used to drive the locking member 64 to move in a direction away from the fine-tuning structure 40 , so that the locking member 64 is in contact with the fine-tuning structure 40 . At this time, the user can easily manually drive the fine-tuning structure 40 to rotate.

[0034] Preferably, in combination with the accompanying drawings, in this embodiment, the unlocking member 62 is provided with an unlocking portion 622 that contacts the locking member 64, and the locking member 64 is provided with an unlocking matching portion 642 that contacts the unlocking portion 622. At least one of the unlocking portion 622 and the unlocking matching portion 642 is a curved surface or an inclined surface, so that when the unlocking member 62 presses the locking member 64, the locking member 64 moves in a direction away from the fine-tuning structure 40.

[0035] Specifically, in this embodiment, the unlocking portion 622 and the unlocking matching portion 642 are both inclined surfaces.

[0036] Preferably, in combination with the accompanying drawings, in this embodiment, the locking member 64 is rod-shaped, and the end of the locking member 64 close to the fine-tuning structure 40 is enlarged to form an abutment portion 644, and the elastic member 66 is a spring sleeved on the locking member 64, and the elastic member 66 elastically abuts against the abutment portion 644 and the outer shell 50 respectively.

[0037] Particularly preferably, in this embodiment, the locking structure 60 further includes a soft pad 68 provided on the abutting portion 644 , and the abutting portion 644 abuts against the fine-tuning structure 40 via the soft pad 68 .

[0038] The soft pad 68 can enhance the friction between the abutting portion 644 and the fine-tuning structure 40 . In addition, the soft pad 68 can also play a buffering role.

[0039] Preferably, in this embodiment, the fine-tuning structure 40 includes a driving member 42 engaged with the transmission structure 30 and a display member 44 connected to the driving member 42 . When the driving member 42 drives the transmission structure 30 to rotate, the display member 44 is driven to rotate.

[0040] With reference to the accompanying drawings, in this embodiment, a scale 442 is provided on the display element 44 , and an indicator portion 52 is provided on the housing 50 .

[0041] In other embodiments, an indicator portion may be provided on the display element 44 and a scale may be provided on the housing 50 .

[0042] Such an arrangement enables the user to see the distance or angle between the first compass foot 10 and the second compass foot 20 in real time.

[0043] Preferably, with reference to the accompanying drawings, in this embodiment, the compass further includes a handle 70 sleeved on the driving member 42 , and the handle 70 rotates to drive the driving member 42 to rotate.

[0044] More preferably, in combination with the accompanying drawings, in this embodiment, the display member 44 is disc-shaped and is mounted on the driving member 42. An elastic ejector pin 80 is also provided on the outer shell 50. A side of the display member 44 close to the elastic ejector pin 80 is provided with a plurality of radial grooves 444 in a ring shape. When the display member 44 rotates, the elastic ejector pin 80 passes through several radial grooves 444 in sequence.

[0045] Such a setting allows the user to experience continuous vibration when manually rotating the fine-tuning structure 40 , thereby improving the user's operating feel.

[0046] The elastic ejector pin 80 adopts a traditional structure, the top of which is a convex surface and can rebound after being pressed down.

[0047] With reference to the drawings, in this embodiment, the transmission structure 30 includes a first double gear 32 and a second double gear 34 .

[0048] The fine-tuning structure 40 is provided with a first tooth 46, the first double gear 32 is provided with a second tooth 322 and a third tooth 324, the second double gear 34 is provided with a fourth tooth 342 and a fifth tooth 344, one end of the first compass foot 10 is provided with a sixth tooth 12, and one end of the second compass foot 20 is provided with a seventh tooth 22.

[0049] The first tooth 46 meshes with the second tooth 322 , the third tooth 324 meshes with the fourth tooth 342 , the fifth tooth 344 , the sixth tooth 12 , and the seventh tooth 22 are all bevel teeth, and the sixth tooth 12 and the seventh tooth 22 mesh with the fifth tooth 344 , respectively.

[0050] Specifically, in this embodiment, the first teeth 46 are stacked on the fourth teeth 342 at intervals, and there are two second double gears 34 .

[0051] Such a configuration makes the overall layout of the fine-tuning structure 40 more compact and more stable.

[0052] With reference to the accompanying drawings, preferably, in this embodiment, a core pressing structure is provided in the second compass foot 20. 24.

[0053] In conjunction with the drawings, preferably, in this embodiment, the compass also includes a compass cap 90 that is sleeved on the other end of the first compass foot 10 and the other end of the second compass foot 20, and an adsorption fixing structure 92 is provided at the end of the compass cap 90 away from the first compass foot 10.

[0054] By means of the adsorption fixing structure 92 , the compass can be fixed vertically on the desktop, thereby saving desktop space occupied by the compass.

[0055] More preferably, in this embodiment, the adsorption fixing structure 92 is a soft suction cup, and an operating portion 94 for releasing adsorption is provided on the outer periphery of the adsorption fixing structure 92 .

[0056] The soft suction cup can be well adsorbed on the desktop, and the operating part 94 provided on the periphery of the adsorption fixing structure 92 can easily release the adsorption.

[0057] The above-described embodiments merely represent several embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A compass, characterized in that: It includes a first compass foot, a second compass foot, a transmission structure and a fine-tuning structure; One end of the first compass foot, one end of the second compass foot and the fine-tuning structure are all engaged with the transmission structure, so that the first compass foot and the second compass foot are rotatably connected, and when the fine-tuning structure drives the transmission structure to rotate, the transmission structure drives the first compass foot and the second compass foot to rotate relative to each other to open or close.

2. The compass according to claim 1, characterized in that The compass also includes a shell arranged at one end of the first compass foot and one end of the second compass foot, and a locking structure arranged on the shell, the locking structure includes an unlocking member, a locking member connected to the unlocking member, and an elastic member respectively connected to the shell and the locking member, the elastic member is in an elastic deformation state, thereby driving the locking member to move until it abuts against the fine-tuning structure, and the unlocking member is used to drive the locking member to move in a direction away from the fine-tuning structure.

3. The compass according to claim 2, characterized in that The unlocking member is provided with an unlocking portion that contacts the locking member, and the locking member is provided with an unlocking matching portion that contacts the unlocking portion. At least one of the unlocking portion and the unlocking matching portion is a curved surface or an inclined surface, so that when the unlocking member presses the locking member, the locking member moves in a direction away from the fine-tuning structure.

4. The compass according to claim 3, characterized in that The locking member is rod-shaped, and one end of the locking member close to the fine-tuning structure is enlarged to form an abutment portion. The elastic member is a spring sleeved on the locking member, and the elastic member elastically abuts against the abutment portion and the housing respectively.

5. The compass according to claim 4, characterized in that The locking structure further includes a soft pad provided on the abutting portion, and the abutting portion abuts against the fine-tuning structure through the soft pad.

6. The compass according to any one of claims 2 to 5, characterized in that: The fine-tuning structure includes a driving member engaged with the transmission structure and a display member connected to the driving member, and when the driving member drives the transmission structure to rotate, the display member is driven to rotate; The display element and the shell are respectively provided with an indicating portion and a scale.

7. The compass according to claim 6, characterized in that The compass further comprises a handle sleeved on the driving member, and the handle rotates to drive the driving member to rotate.

8. The compass according to claim 6, characterized in that The display member is in the shape of a disk mounted on the driving member. The outer shell is further provided with an elastic ejector pin. A side of the display member close to the elastic ejector pin is provided with a plurality of radial grooves in a ring shape. When the display member rotates, the elastic ejector pin sequentially passes through a plurality of the radial grooves.

9. The compass according to claim 6, characterized in that The transmission structure includes a first double gear and a second double gear; The fine-tuning structure is provided with a first tooth, the first double gear is provided with a second tooth and a third tooth, the second double gear is provided with a fourth tooth and a fifth tooth, one end of the first compass foot is provided with a sixth tooth, and one end of the second compass foot is provided with a seventh tooth; The first tooth meshes with the second tooth, the third tooth meshes with the fourth tooth, the fifth tooth, the sixth tooth and the seventh tooth are all bevel teeth, and the sixth tooth and the seventh tooth mesh with the fifth tooth respectively.

10. The compass according to claim 9, characterized in that The first teeth are stacked on the fourth teeth at intervals, and there are two second double gears.

11. The compass according to claim 6, characterized in that The compass further comprises a compass cap which is sleeved on the other end of the first compass leg and the other end of the second compass leg, and an adsorption fixing structure is provided on one end of the compass cap away from the first compass leg.

12. The compass according to claim 11, characterized in that The adsorption fixing structure is a soft suction cup, and an operating portion for releasing adsorption is provided on the periphery of the adsorption fixing structure.

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