CN207241253U - It is a kind of that there are firm compasses - Google Patents

Abstract

There are firm compasses the utility model discloses a kind of, including handle, the bottom of the handle is fixedly connected with footstock, the inner wall of the footstock is connected with compasses fixed pole and compasses bull stick, the bottom of the compasses bull stick is movably installed with compasses lead for retractable pencil, the upper surface of the compasses fixed pole and compasses bull stick opens up fluted, the groove is connected with the first fixed link close to the front of its bottom, the front of first fixed link is flexibly connected clamping device, one end of first fixed link is fixedly connected with first rotating shaft, the surface pivots of the first rotating shaft are connected with the second fixed link, the back side of second fixed link is connected with the second shaft, the bottom of second shaft is fixedly connected on groove close to the front of its bottom.The compasses of the firm function, by the cooperation of said structure, greatly improve the stability of the utility model, and the quality that people draw also improves therewith.

Description

It is a kind of that there are firm compasses

Technical field

Life learning art field is the utility model is related to, is specially a kind of compasses for having the function of to consolidate.

Background technology

Compasses are the instruments for drawing circle or string, are frequently utilized for construction with ruler and compasses in mathematics and drawing.Compasses are typically Be made of metal, by a hinge connection, including two parts, wherein can adjust, compasses be divided into common compasses, bow-spring compasses, Drop bow and trammel etc..We can run into miscellaneous circular pattern among life study, when we are want these figures When case draws the operation for doing some standards, since circular pattern is not easy to draw, rendering error is also easy to produce, then people Invented compasses, but traditional compasses still have several drawbacks at firm aspect, usually compasses fixed pole and circle in drawing processes The distance of rule bull stick cannot keep stable very well, slightly exert oneself, the distance between two bars will increase, and make the head and the tail of circular pattern It cannot connect, the ensuing operation to people brings many inconvenience.

Utility model content

There are firm compasses the purpose of this utility model is to provide a kind of, to solve to carry in above-mentioned background technology The problem of going out.

To achieve the above object, the utility model provides following technical solution：A kind of compasses for having the function of to consolidate, including Handle, the bottom of the handle are fixedly connected with footstock, and the inner wall of the footstock is connected with compasses fixed pole and compasses bull stick, The bottom of the compasses fixed pole is fixedly connected with compasses and determines pin, and the bottom of the compasses bull stick is movably installed with compasses lead for retractable pencil, institute The upper surface for stating compasses fixed pole and compasses bull stick opens up fluted, and the groove is connected with close to the front of its bottom One fixed link, the front of first fixed link are connected with clamping device, and one end of first fixed link is fixedly connected There is first rotating shaft, the surface pivots of the first rotating shaft are connected with the second fixed link, and the back side activity of second fixed link is even The second shaft is connected to, the bottom of second shaft is fixedly connected on groove close to the front of its bottom.

The clamping device includes knob, and the knob bottom is fixedly connected with clamp pad, and the clamp pad bottom is fixed It is connected with threaded rod.

Preferably, threaded hole is offered in the groove, and the size of threaded hole is adapted with threaded rod.

Preferably, the equal length of first fixed link and the second fixed link, and the first fixed link and the second fixed link Length be adapted with groove.

Preferably, the thickness of first fixed link and the second fixed link is equal, and the first fixed link and the second fixed link Thickness be adapted with groove.

Preferably, the surface of the knob is equipped with skid resistance strip.

Compared with prior art, the beneficial effects of the utility model are：The utility model by set the first fixed link with Second fixed link constitutes a triangular frame structure by first rotating shaft, improves the stability of compasses, passes through buffering First fixed link is movably connected in compasses bull stick close to the front of its bottom by knob, compasses is kept stable, is passed through Second fixed link is movably connected in compasses fixed pole close to the front of its bottom by two shafts, compasses is automatically adjusted picture circle Radius, makes the adjusting enhanced convenience of compasses, the stabilization of compasses further improves, and passes through knob bottom by the setting of clamping device Portion is fixedly connected with clamp pad, makes the tight lock function of knob more perfect, prevents knob from loosening the stability for influencing compasses, passes through Above-mentioned first fixed link, the second fixed link, first rotating shaft, the second shaft, clamping device are used cooperatively, and solve compasses fixed pole The problem of cannot keeping stabilizing distance very well in use with compasses bull stick, the stability of the utility model is set to carry significantly Height, the quality that people draw also improve therewith.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the utility model clamping device structure diagram.

In figure：1 handle, 2 footstocks, 3 compasses fixed poles, 4 compasses bull sticks, 5 compasses determine pin, 6 compasses lead for retractable pencils, 7 grooves, 8 first Fixed link, 9 clamping devices, 91 knobs, 92 clamp pads, 93 threaded rods, 10 first rotating shafts, 11 second fixed links, 12 second shafts.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained, shall fall within the protection scope of the present invention.

- 2 are please referred to Fig.1, the utility model provides a kind of technical solution：It is a kind of that there is firm compasses, including hand Handle 1, the bottom of handle 1 are fixedly connected with footstock 2, and footstock 2 is the important coupling part of overall up-down structure, the inner wall of footstock 2 Compasses fixed pole 3 and compasses bull stick 4 are connected with, is the important feature of compasses, the bottom of compasses fixed pole 3 is fixedly connected with compasses Determine pin 5, be the indispensable structure that compasses fix the center of circle, the bottom of compasses bull stick 4 is movably installed with compasses lead for retractable pencil 6, is drawing for compasses Indispensable structure, the upper surface of compasses fixed pole 3 and compasses bull stick 4 opens up fluted 7, and opening up for groove 7 facilitates fixed link Folding and unfolding, offers threaded hole in groove 7, and the size of threaded hole is adapted with threaded rod 93, facilitates the fixation of clamping device, from And ensure integrally-built firm, the equal length of the first fixed link 8 and the second fixed link 11, and the first fixed link 8 and second The length of fixed link 11 is adapted with groove 7, facilitates the folding and unfolding of supporting rod, is not in the stuck phenomenon of supporting rod, and groove 7 leans on The front of its nearly bottom is connected with the first fixed link 8, and the front of the first fixed link 8 is connected with clamping device 9, passes through First fixed link 8 is movably connected in compasses bull stick 4 close to the front of its bottom by clamping device 9, compasses is kept stable, One end of first fixed link 8 is fixedly connected with first rotating shaft 10, and the surface pivots of first rotating shaft 10 are connected with the second fixed link 11, The back side of second fixed link 11 is connected with the second shaft 12, is movably connected in the second fixed link 11 by the second shaft 12 Compasses fixed pole 3 allows compasses to automatically adjust the radius of picture circle, is made by the setting of the second shaft 12 close to the front of its bottom The adjusting enhanced convenience of compasses, the stabilization of compasses further improve, and the first fixed link 8 and the second fixed link 11 pass through first turn Axis 10 constitutes a triangular frame structure, has reached the stability of compasses, and the bottom of the second shaft 12 is fixedly connected on Groove 7 is close to the front of its bottom, and the thickness of the first fixed link 8 and the second fixed link 11 is equal, and the first fixed link 8 and second The thickness of fixed link 11 is adapted with groove 7, the utility model is acted freely, and ensures the uniformity of monnolithic case.

Clamping device 9 includes knob 91, and the back side of knob 91 is fixedly connected with clamp pad 92, and the setting of clamp pad 92 makes folder Tight device 9 is more stablized, and the surface of knob 91 is equipped with skid resistance strip, makes locking support bar more convenient, facilitates the receipts of supporting rod Put, clamp pad 92 is fixedly connected with by 91 back side of knob, make the tight lock function of knob 91 more perfect, prevent knob 91 from loosening The stability of compasses is influenced, 92 back side of clamp pad is fixedly connected with threaded rod 93.

Operation principle：When the utility model works, separately compasses fixed pole 3 and compasses bull stick 4 first, make compasses fixed pole 3 with Length between compasses bull stick 4 reaches oneself desired length, and first fixed clamping device 9, then fix the second shaft 12 afterwards, makes The overall structure of compasses, which is realized, to be stablized, and by the fixation of two bars, greatly improves the accuracy that picture is justified.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of have the function of firm compasses, including handle (1), it is characterised in that：The bottom of the handle (1) is fixedly connected There is footstock (2), the inner wall of the footstock (2) is connected with compasses fixed pole (3) and compasses bull stick (4), the compasses fixed pole (3) Bottom be fixedly connected with compasses and determine pin (5), the bottom of the compasses bull stick (4) is movably installed with compasses lead for retractable pencil (6), the circle The upper surface of regulation bar (3) and compasses bull stick (4) opens up fluted (7), front activity of the groove (7) close to its bottom The first fixed link (8) is connected with, the front of first fixed link (8) is connected with clamping device (9), and described first fixes One end of bar (8) is fixedly connected with first rotating shaft (10), and the surface pivots of the first rotating shaft (10) are connected with the second fixed link (11), the back side of second fixed link (11) is connected with the second shaft (12), and the bottom of second shaft (12) is consolidated Surely groove (7) is connected to close to the front of its bottom；

The clamping device (9) includes knob (91), and the back side of the knob (91) is fixedly connected with clamp pad (92), the folder The back side of tight pad (92) is fixedly connected with threaded rod (93).

A kind of 2. compasses for having the function of to consolidate according to claim 1, it is characterised in that：Opened up in the groove (7) There is threaded hole, and the size of threaded hole is adapted with threaded rod (93).

A kind of 3. compasses for having the function of to consolidate according to claim 1, it is characterised in that：First fixed link (8) With the equal length of the second fixed link (11), and the length of the first fixed link (8) and the second fixed link (11) is mutually fitted with groove (7) Match somebody with somebody.

A kind of 4. compasses for having the function of to consolidate according to claim 1 or 3, it is characterised in that：First fixed link (8) and the second fixed link (11) thickness it is equal, and the thickness of the first fixed link (8) and the second fixed link (11) and groove (7) It is adapted.

A kind of 5. compasses for having the function of to consolidate according to claim 1, it is characterised in that：The surface of the knob (91) Equipped with skid resistance strip.