CN208544017U - A kind of portable type measuring and drawing tool - Google Patents

Abstract

The utility model discloses a kind of portable type measuring and drawing tool, including volume box, coils in the volume box and the rope rolling of extended volume box, the first sucker and paintbrush；The center of the volume box is equipped with rotatable central axis, and one end of the central axis is equipped with the second sucker；The extension end of the rope rolling is rotatablely connected with a hollow pen clip, first sucker and paintbrush can be detachably connected to be respectively used to picture ellipse and positive round respectively with the pen clip, compared with prior art, the beneficial effect of portable type measuring and drawing tool provided by the utility model is: equipped with the second sucker being detachably connected with pen clip and paintbrush, not only facilitate picture positive round but also facilitate picture oval, structure is simply conducive to manufacture, and convenient to use and carrying is to improve the quality of teaching.

Description

A kind of portable type measuring and drawing tool

[technical field]

The utility model relates to educational aid technical field, it is specifically related to a kind of portable type measuring and drawing tool.

[background technique]

Currently, compasses used in teaching are usually bipod compasses, i.e. one end of the two of the compasses compass foot passes through hinge Connection, the other end can merge or separate to draw circle, and when drawing, one of compass foot served as the fulcrum i.e. center of circle, another circle Regulation foot installation chalk or white board marker are used to draw.This calipers function is single, inefficiency, inconvenient to carry.It can only be single Ground must measure required radius for picture circle before mapping with two compass foots on ruler, then draw corresponding half The circle of diameter；Meanwhile because intersecting as the compass foot of fulcrum with drawing inclination is made when drawing, this makes compass foot be easy to skid simultaneously Cause the circle drawn lack of standardization；In addition, because the volume of bipod compasses is larger, it is not readily portable.Currently, having had already appeared one kind If suctorial Band tape and compass to overcome above-mentioned disadvantage, is not only convenient for carrying but also be easy to use, but it cannot be used for picture ellipse.

In consideration of it, it is really necessary to provide one kind novel portable type measuring and drawing tool to overcome the prior art not Foot.

[utility model content]

The purpose of the utility model is to provide a kind of religions with multifunctional and multipurposes such as picture positive round, ellipse and measurement length Learn compasses.

To achieve the goals above, the utility model provides a kind of portable type measuring and drawing tool, including volume box, coils In the volume box and the rope rolling of extended volume box, the first sucker and paintbrush；The center of the volume box is equipped in rotatable One end of mandrel, the central axis is equipped with the second sucker；The extension end of the rope rolling is rotatablely connected with a hollow pen clip, described First sucker and paintbrush can be detachably connected to be respectively used to picture ellipse and positive round respectively with the pen clip.

As a kind of improvement of the utility model portable type measuring and drawing tool, the extension end of the rope rolling is in circular ring shape And what can be rotated is placed on outside the pen clip, and the pen clip offers the limiting slot of receiving extension end.

As a kind of improvement of the utility model portable type measuring and drawing tool, the inner surface of the pen clip is equipped with interior spiral shell The outer surface of line, first sucker and paintbrush is respectively equipped with the external screw thread with the screw-internal thread fit of the pen clip, and described One sucker and paintbrush pass through to be threadedly engaged to be detachably connected with pen clip formation respectively.

As a kind of improvement of the utility model portable type measuring and drawing tool, the central axis and the pen clip are in flat Row setting, and first sucker or the paintbrush are set to pen clip one end corresponding with second sucker.

As a kind of improvement of the utility model portable type measuring and drawing tool, the central axis is inhaled far from described second One end of disk is recessed with the screw hole that can be threadedly engaged with first sucker.

As a kind of improvement of the utility model portable type measuring and drawing tool, stretching of the volume box in the rope rolling Place is equipped with the clamp system for being capable of fixing the rope rolling.

As a kind of improvement of the utility model portable type measuring and drawing tool, the rope rolling could be used without the soft of elasticity Rope is made and is equipped with scale on the surface.

Compared with prior art, the beneficial effect of portable type measuring and drawing tool provided by the utility model is: setting There are the first sucker and paintbrush being detachably connected with pen clip, not only facilitated picture positive round but also facilitates picture oval, structure is simply conducive to manufacture, And convenient to use and carrying is to improve the quality of teaching.

[Detailed description of the invention]

Fig. 1 is the perspective view of portable type measuring provided by the utility model and drawing tool；

Front view when Fig. 2 is portable type measuring shown in Fig. 1 and drawing tool picture positive round；

Front view when Fig. 3 is portable type measuring shown in Fig. 1 and oval drawing tool picture；

Fig. 4 is the cross-sectional view of pen clip shown in Fig. 1 and paintbrush cooperation；

Fig. 5 is the cross-sectional view of pen clip shown in Fig. 1 and the cooperation of the second sucker.

[specific embodiment]

It is clear in order to be more clear the purpose of this utility model, technical solution and advantageous effects, below in conjunction with attached Figure and specific embodiment, the present invention will be further described in detail.It should be understood that described in this specification Specific embodiment is not intended to limit the utility model just for the sake of explaining the utility model.

Please refer to Fig.1 to Fig.3, portable type measuring and drawing tool 100 provided by the utility model, including it is cylindrical simultaneously It indicates the volume box 10 of radius, coil in the volume box 10 and the rope rolling 20 of extended volume box 10, the first sucker 30 and paintbrush 40. In the present embodiment, the tightrope that the rope rolling 20 could be used without elasticity is made and is equipped with scale on the surface for indicating institute The length scale that rope rolling 20 stretches out the volume box 10 is stated, the paintbrush 40 is chalk or white board marker and can be on blackboard or blank Using in favor of teaching.The center of the volume box 10 is equipped with rotatable central axis 101, and one end of the central axis 101 is set There is the second sucker 1011；The extension end of the rope rolling 20 is rotatablely connected with a hollow pen clip 201, first sucker 30 and picture Pen 40 can be detachably connected to be respectively used to picture ellipse and positive round respectively with the pen clip 201.In present embodiment, the rope rolling 20 extension end is in circular ring shape and what can be rotated be placed on outside pen clip, specifically, Fig. 4 and Fig. 5 is please referred to, the pen clip 201 Offer the limiting slot 2011 of receiving extension end.

When the utility model portable type measuring and drawing tool 100 are used for picture positive round, referring to Fig. 2, by the paintbrush 40 It is connect with the pen clip 201 and second sucker 1011 is fixed on blackboard or blank, then institute is straightened with the paintbrush 40 Rope rolling 20 is stated and around the rotation of the central axis 101, so that the paintbrush 40 can be drawn on blackboard or blank with described second The center of sucker 1011 is the center of circle, is with the sum of the length that the radius of the volume box 10 stretches out the volume box 10 with the rope rolling 20 The circle of radius.

When the utility model portable type measuring and drawing tool 100 are used for picture ellipse, referring to Fig. 3, described first is inhaled Disk 30 connect with the pen clip 201 and is fixed on blackboard or white for what second sucker 1011 and first sucker 30 were spaced (the distance between the center of first sucker 30 and the center of second sucker 1011 are equal to drawn elliptical coke on plate Away from), the rope rolling 20 is pulled out into appropriate length, and (the i.e. described rope rolling 20 stretches out the volume box 10 to the pull-out of the rope rolling 20 length Length) be greater than the center of second sucker 1011 and the distance between the center of first sucker 30, then with the picture Pen 40 is straightened the rope rolling 20 and around the volume box 10 and the movement of pen clip 201, thus the energy on blackboard or blank of the paintbrush 40 It draws using the center of second sucker 1011 and the center of first sucker 30 as the ellipse of bifocal.

It should be noted that be recessed with far from one end of second sucker 1011 can be with described first for the central axis 101 The screw hole 1012 that sucker 30 is threadedly engaged is to be used to place first sucker 30.It is understood that when using or carrying When the portable type measuring and drawing tool 100, first sucker 30 can be locked to the screw hole 1012 in the central axis 101 On, to facilitate using and carrying for the portable type measuring and drawing tool 100, also that is, the portable type measuring and drawing work Tool 100 draw positive round, measurement length or without using when first sucker 30 can be locked in the central axis 101 To prevent first sucker 30 from losing on screw hole 1012.

Please refer to Fig. 4 and Fig. 5, further, the inner wall of the pen clip 201 is equipped with internal screw thread, first sucker 30 and the outer surface of paintbrush 40 be respectively equipped with the external screw thread with the screw-internal thread fit of the pen clip 201, first sucker 30 And paintbrush 40 is detachably connected with the pen clip 201 formation by being threadedly engaged respectively, in favor of the portable type measuring and Drawing tool 100 is not easy to loosen when in use.In other embodiments, first sucker 30 and paintbrush 40 with can pass through The mode of interference fit or the mode of clamping are detachably connected with the pen clip 201 formation.It should be noted that the central axis 101 are set in parallel with the pen clip 201, and the pen clip 201 is for being detachably connected first sucker 30 or the picture It is corresponding that one end and the central axis 101 of pen 40 are used to connect one end of second sucker 1011, i.e., described first sucker 30 or the paintbrush 40 connect with the pen clip 201 after can be adsorbed in jointly on blackboard or blank with second sucker 1011.

Further, the volume box 10 is equipped with the clamp system for being capable of fixing the rope rolling 20 at the stretching of the rope rolling 20 102, the length that the rope rolling 20 stretches out the volume box 10 is fixed, to be conducive to the portable type measuring and drawing tool 100 draw positive round or ellipse.

The utility model is not only in the description and the implementation described, therefore for the personnel of familiar field For other advantage and modification is easily implemented, therefore without departing substantially from universal defined by claim and equivalency range Spirit and scope in the case where, the utility model is not limited to specific details, representative equipment and shown here as with retouch The diagram example stated.

Claims (7)

1. a kind of portable type measuring and drawing tool, it is characterised in that: including volume box, coil in the volume box and extended volume The rope rolling of box, the first sucker and paintbrush；The center of the volume box is equipped with rotatable central axis, and one end of the central axis is set There is the second sucker；The extension end of the rope rolling is rotatablely connected with a hollow pen clip, first sucker and paintbrush can respectively with The pen clip is detachably connected to be respectively used to picture ellipse and positive round.

2. portable type measuring according to claim 1 and drawing tool, it is characterised in that: the extension end of the rope rolling is in circle Annular and what can be rotated be placed on outside the pen clip, the pen clip offers the limiting slot of receiving extension end.

3. portable type measuring according to claim 1 and drawing tool, it is characterised in that: the inner surface of the pen clip is equipped with The outer surface of internal screw thread, first sucker and paintbrush is respectively equipped with the external screw thread with the screw-internal thread fit of the pen clip, institute State the first sucker and paintbrush pass through be threadedly engaged respectively with the pen clip formation be detachably connected.

4. portable type measuring according to claim 3 and drawing tool, it is characterised in that: the central axis and the pen clip It is set in parallel, and first sucker or the paintbrush are set to pen clip one end corresponding with second sucker.

5. portable type measuring according to claim 4 and drawing tool, it is characterised in that: the central axis is far from described One end of two suckers is recessed with the screw hole that can be threadedly engaged with first sucker.

6. portable type measuring according to claim 1 and drawing tool, it is characterised in that: the volume box is in the rope rolling The clamp system for being capable of fixing the rope rolling is equipped at stretching.

7. portable type measuring according to claim 1 and drawing tool, it is characterised in that: the rope rolling could be used without elasticity Tightrope be made and on the surface be equipped with scale.