CN216804967U - Novel compasses - Google Patents

Abstract

The utility model relates to a novel compasses in the technical field of study articles, which comprises a fixed block, a foot rest and an ejector pin, wherein the foot rest comprises a fixed supporting leg and a movable supporting leg, one end of the fixed supporting leg is connected with the fixed block, the ejector pin is positioned at one end of the fixed supporting leg, clamping grooves are respectively arranged in the fixed supporting leg and the movable supporting leg, the inner wall of each clamping groove is connected with a ruler for assisting in drawing a circular arc, two ends of the ruler are respectively detachably connected with the clamping grooves, the movable supporting leg can move along the surface of the ruler through the clamping grooves, one end of the movable supporting leg is provided with a refill, and the fixed supporting leg and the ejector pin are rotated by rotating the fixed block, so that the movable supporting leg and the refill rotate together; the circle can be drawn more accurately, and the circle with larger radius can be drawn; on the other hand, the ruler can be detached from the clamping groove to form the ruler independently, and the ruler is convenient for users to use.

Description

Novel compasses

Technical Field

The utility model relates to the technical field of school supplies, in particular to a novel compass.

Background

The utility model of compasses can be traced back to the Chinese summer dynasty, the Dayu water treatment 'left rope and right gauge distance' in the Shiji-Xian Ben Ji, the oracle bone text 15 th century before the Gongyuan has a rule and a moment, and is called 'rule' at that time, namely compasses, the records of 'Zhou Li-Kao Gong-Shi-Jiang-Ming': "craftsman, hang on the ground, and set to hang, see the scenery. For rule, identify the scene of sunrise and the scene of sunrise. Day refers to the scenes in the middle of the day and the polar star in night. "there is" the east china fu xi nvwa brick carving in jiaxiang wuliang temple of Shandong ", wherein the nvwa executes the rule, fu xi and executes the square, the rule here is ancient style roof beam rule, the shape is similar to the font of the oracle" deca ". Drawing tool for drawing circle. Two feet are provided, the upper ends of the two feet are hinged, and the lower ends of the two feet can be freely separated or folded, so that the size of the radius of the drawn arc can be adjusted. The tail end of one leg is a needle point, and the tail end of the other leg can be filled with a leg for drawing pencil lines or ink lines. The compasses are provided with an extension rod, so that a larger circle can be drawn. The compasses are beam compasses, spring compasses, movable compasses and the like.

The existing Chinese patent with reference to publication number CN214112099U discloses a novel compass, which comprises a mounting arm, a first support arm and a second support arm, wherein the first support arm and the second support arm are both rotationally connected with the mounting arm, the first support arm and the second support arm are respectively connected with a first connecting arm and a second connecting arm, the first connecting arm and the second connecting arm are respectively connected with a first extending leg and a second extending leg in a sliding manner, and the tail end of the first extending leg and the tail end of the second extending leg are respectively hinged with a first positioning column and a second positioning column; the first connecting arm and the second connecting arm are provided with sliding chutes, and the first extending leg and the second extending leg are in sliding connection with the sliding chutes.

The utility model has larger volume, and is too complex in design, which does not purposefully solve the problems often encountered by students, is not beneficial to carrying and is also not beneficial to the students to rapidly solve the problems; on the other hand, this utility model does not possess the function of measurement size, from structural improvement that still need to be made, for this reason we have proposed a novel compasses to solve above-mentioned technical problem who proposes.

SUMMERY OF THE UTILITY MODEL

Utility model is not enough to overcome the above condition, aims at providing a technical scheme that can solve above-mentioned problem.

The utility model provides a novel compasses, including fixed block, foot rest and thimble, the foot rest includes fixed leg and activity landing leg, the one end and the fixed block of fixed leg are connected, the thimble is located the one end of fixed leg, fixed leg all is equipped with the clamping groove with the inside of activity landing leg, the inner wall in clamping groove is connected with the supplementary ruler of drawing the circular arc, the both ends of ruler can be dismantled with the clamping groove respectively and are connected, the surface movement of ruler can be followed through the clamping groove to the activity landing leg, the one end of activity landing leg is equipped with the refill, through rotating the fixed block, make fixed leg and thimble rotate, thereby make activity landing leg and refill together rotate.

Furthermore, the surfaces of the fixed supporting legs and the movable supporting legs are respectively provided with an adjusting device, each adjusting device comprises a knob, a pressing block and a screw rod, and the screw rods are rotated through the knobs to enable the pressing blocks to apply pressure to the clamping grooves, so that the inner walls of the clamping grooves clamp the surfaces of the rulers.

Furthermore, the one end of fixed landing leg is equipped with magnetism and inhales the piece, when dismantling the ruler from the clamping groove, inhales the piece through magnetism and produces magnetic force and adsorb the landing leg that moves about, avoids the landing leg that moves about to lose.

Furthermore, the top of fixed block is equipped with the turning handle, and the one end of turning handle is connected for dismantling with the fixed block, reaches supplementary fixed landing leg and thimble pivoted effect through turning handle and fixed block.

Furthermore, one end of the movable supporting leg is provided with a graduated scale for auxiliary positioning, and the graduated scale is aligned to the scale marks on the surface of the straight scale to ensure the accuracy of drawing the circular arc.

Furthermore, the surface of the thimble is provided with a needle sleeve for protecting the thimble, the thimble is protected by the needle sleeve, and a user is prevented from being punctured by a sharp corner of the thimble.

Compared with the prior art, the utility model has the beneficial effects that: the circle can be drawn more accurately, and the circle with larger radius can be drawn; on the other hand, the ruler can be detached from the clamping groove to form the ruler independently, and the ruler is convenient for users to use.

Drawings

FIG. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is a schematic view of a movable leg in an embodiment of the utility model;

in the figure: 1-fixed block, 2-thimble, 3-fixed supporting leg, 4-movable supporting leg, 5-clamping groove, 6-straight ruler, 7-refill, 8-knob, 9-pressing block, 10-screw rod, 11-magnetic sheet, 12-rotating handle, 13-scale and 14-needle sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the embodiment, please refer to fig. 1-2, a novel compass specifically implemented by the compass comprises a fixed block 1, a foot rest and a thimble 2, wherein the foot rest comprises a fixed leg 3 and a movable leg 4, one end of the fixed leg 3 is connected with the fixed block 1, the thimble 2 is located at one end of the fixed leg 3, clamping grooves 5 are respectively formed in the fixed leg 3 and the movable leg 4, an inner wall of each clamping groove 5 is connected with a ruler 6 for assisting in drawing an arc, two ends of each ruler 6 are detachably connected with the clamping grooves 5 respectively, the movable leg 4 can move along the surface of the ruler 6 through the clamping grooves 5, and a refill 7 is arranged at one end of the movable leg 4, and the fixed leg 3 and the thimble 2 are rotated by rotating the fixed block 1, so that the movable leg 4 and the refill 7 are rotated together.

The surface of fixed landing leg 3 and activity landing leg 4 all is equipped with adjusting device, and adjusting device includes knob 8, briquetting 9 and lead screw 10, rotates lead screw 10 through knob 8, makes briquetting 9 exert pressure to clamping groove 5 to the surface that the inner wall that makes clamping groove 5 presss from both sides tight ruler 6.

The one end of fixed landing leg 3 is equipped with magnetism and inhales piece 11, when dismantling ruler 6 from clamping groove 5, inhales piece 11 through magnetism and produces magnetic force and adsorb activity landing leg 4, avoids activity landing leg 4 to lose.

The top of fixed block 1 is equipped with turning handle 12, and the one end of turning handle 12 is connected for dismantling with fixed block 1, reaches supplementary fixed landing leg 3 and thimble 2 pivoted effect through turning handle 12 and fixed block 1.

One end of the movable supporting leg 4 is provided with a graduated scale 13 for auxiliary positioning, and the graduated scale 13 is aligned to the scale marks on the surface of the straight scale 6, so that the accuracy of drawing the circular arc is ensured.

The surface of the thimble 2 is provided with a needle sleeve 14 for protecting the thimble 2, the thimble 2 is protected by the needle sleeve 14, and meanwhile, the sharp corner of the thimble 2 is prevented from stabbing a user.

When the ruler is used, the fixed block 1 is rotated through the rotating handle 12, so that the fixed supporting leg 3 and the movable supporting leg 4 can draw circular arcs, the rotating handle 12 can be detached from the fixed block 1, the ruler 6 can be detached from the clamping groove 5, the ruler can be independently formed for use, the pressing block 9 applies pressure to the clamping groove 5 through the rotation of the knob 8, the inner wall of the clamping groove 5 clamps the surface of the ruler 6, and the pen core 7 is adjusted to draw circular arcs with different radiuses.

When drawing circular arcs with the radius of 2-5mm, the thimble 2 is used for positioning, the screw rod 10 is rotated through the knob 8, and the clamping force of the clamping groove 5 on the ruler 6 is adjusted, so that the movable supporting leg 4 moves along the surface of the ruler 6 through the clamping groove 5, and the effect of drawing circular arcs with different radii is achieved.

The foregoing is a more detailed description of the utility model, taken in conjunction with the specific preferred embodiments thereof, and is not intended to limit the utility model to the particular forms disclosed. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as the protection scope of the utility model.

Claims (6)

1. The utility model provides a novel compasses, includes fixed block, foot rest and thimble, its characterized in that: the foot rest includes fixed landing leg and movable leg, the one end and the fixed block of fixed landing leg are connected, the thimble is located the one end of fixed landing leg, fixed landing leg all is equipped with the clamping groove with movable leg's inside, the inner wall in clamping groove is connected with the supplementary ruler of drawing the circular arc, the both ends of ruler are dismantled with the clamping groove respectively and are connected, movable leg passes through the clamping groove and can follow the surface removal of ruler, movable leg's one end is equipped with the refill, through rotating the fixed block, make fixed landing leg and thimble rotate, thereby make movable leg and refill together rotate.

2. The novel compass of claim 1, wherein: the surface of the fixed supporting leg and the surface of the movable supporting leg are both provided with adjusting devices, each adjusting device comprises a knob, a pressing block and a screw rod, and the screw rods are rotated through the knobs to enable the pressing blocks to apply pressure to the clamping grooves.

3. The novel compass according to any one of claims 1-2, wherein: one end of the fixed supporting leg is provided with a magnetic attraction sheet.

4. The novel compass according to any one of claims 1-2, wherein: and the top of the fixed block is provided with a rotating handle.

5. The novel compass according to any one of claims 1-2, wherein: and a graduated scale for auxiliary positioning is arranged at one end of the movable supporting leg.

6. The novel compass according to any one of claims 1-2, wherein: the surface of the thimble is provided with a needle sleeve for protecting the thimble.

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