CN107901675A

CN107901675A - A kind of compasses

Info

Publication number: CN107901675A
Application number: CN201711137956.6A
Authority: CN
Inventors: 周默
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-16
Filing date: 2017-11-16
Publication date: 2018-04-13
Anticipated expiration: 2037-11-16
Also published as: CN107901675B

Abstract

The invention discloses a kind of compasses,Including pedestal,First groove,Driving mechanism,First gear,Second gear,First fixed mechanism,Second fixed mechanism,Reading mechanism,First leg,Second supporting leg,Pilot pin,Drawing pen,Handle,Second groove,Rotation axis and turntable,The lower end of the pedestal is equipped with the first groove,First gear and second gear are equipped with first groove,The first gear engages connection with second gear,The lower end of the first gear and second gear is respectively equipped with first leg and the second supporting leg,The lower end of the first leg is equipped with the first fixed mechanism,First fixed mechanism is equipped with drawing pen,The lower end of second supporting leg is equipped with the second groove and the rotation axis through the second groove,The lower end of rotation axis in second groove is equipped with pilot pin,Compared with prior art,It can use easy to carry,Good reliability,Pilot pin is avoided to hurt sb.'s feelings phenomenon.

Description

A kind of compasses

【Technical field】

The present invention relates to a kind of technical field of students' supplies, particularly a kind of technical field of compasses.

【Background technology】

Compasses are the instruments for drawing circle and circular arc, it is one of indispensable instrument in our office, study.It by Two parts connect a hinge and form, and in-between connecting portion can adjust.In life, when common compasses construction, need to use ruler Have measuring radius, in the case where no ruler has, there is significant limitation to the figure for making standard, be more often Figure can not be made, simultaneously as the connecting portion of compasses is hinge, after compasses long-time use, is easily loosened at hinge, During graphing, the problem of dislocation usually occurs, and when two compass leg angles are bigger, pilot pin is not fixed easily down Come, pilot pin is easily skidded during picture, and to Plot Work, person makes troubles.

【The content of the invention】

The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of compasses, can be easy to use, reliability It is good.

To achieve the above object, the present invention proposes a kind of compasses, including pedestal, the first groove, driving mechanism, the first tooth Wheel, second gear, the first fixed mechanism, the second fixed mechanism, reading mechanism, first leg, the second supporting leg, pilot pin, drawing Pen, handle, the second groove, rotation axis and turntable, the lower end of the pedestal are equipped with the first groove, and the is equipped with first groove One gear and second gear, the first gear engage connection, the lower end of the first gear and second gear with second gear First leg and the second supporting leg are respectively equipped with, the lower end of the first leg is equipped with the first fixed mechanism, and described first fixes machine Structure is equipped with drawing pen, and the lower end of second supporting leg is equipped with the second groove and the rotation axis through the second groove, and described second The lower end of rotation axis in groove is equipped with pilot pin, and one end of the rotation axis is equipped with turntable, and second supporting leg is equipped with solid Determine the second fixed mechanism of turntable, the driving mechanism that driving second gear rotates is equipped with the rear end of first groove, it is described The side of pedestal is equipped with the reading mechanism being connected with driving mechanism, and the upper end of the pedestal is equipped with handle, and described second fixes machine Structure includes bearing, slide mass, cap body, spring and stops step, and second supporting leg is equipped with bearing, is equipped with the bearing Slide mass, the upper end of the slide mass are equipped with cap body, and the slide mass is equipped with the lower section of bearing stops step, the stop platform Be arranged with spring on slide mass between rank and bearing, the side face of the turntable be equipped be uniformly distributed and with the lower end of slide mass Matched 3rd groove, the reading mechanism include the 3rd gear, the 4th gear, transparent cover body, the first scale area, the second quarter Spend area, the first reading pointer and the second reading pointer, the side of the pedestal is equipped with the 3rd gear and the 4th gear, and the described 3rd Gear is connected with driving mechanism, and the 4th gear engages connection with the 3rd gear, the 3rd gear and the 4th gear it is outer The first reading pointer and the second reading pointer are respectively equipped with side, the side of the pedestal is equipped with the 3rd gear of the cover and the 4th tooth The transparent cover body of wheel, the transparent cover body are equipped with the first scale area and the second scale area, first scale area and the second quarter Degree area is engaged with the first reading pointer and the second reading pointer respectively.

Preferably, the driving mechanism includes mounting base, worm body, the 5th gear and adjustment cap, first groove Rear end in be equipped with mounting base, the mounting base is equipped with rotatable worm body, the front end of the worm body and second gear Engagement connection, the worm body are equipped with the 5th gear that connection is engaged with the 3rd gear in the first groove, are set on the pedestal There is the opening exposed for the 5th gear, the rear end of the worm body is equipped with adjustment cap, the 3rd gear and the 5th gear Tooth ratio is：1:1.

Preferably, the tooth ratio of the 3rd gear and the 4th gear is：1:10.

Preferably, first fixed mechanism includes trough-shaped body, two lower connectors, two upper connectors, elasticity pressure Tight body, rotor and fastening body, the lower end of the first leg are equipped with trough-shaped body, under the front end of two cell walls of the trough-shaped body Portion is equipped with lower connector, and the lower end of the elastic compression body is rotatably connected with lower connector, two grooves of the trough-shaped body The upper front end of wall is equipped with connector, and the upper connector is equipped with rotatable rotor, the upper end of the rotor Equipped with the fastening body being pressed in the upper-end front of elastic compression body.

Preferably, the centre of the elastic compression body is equipped with the arch section to arch upward backward, the arch section compresses The seal face of drawing pen is equipped with equally distributed detent projection.

Beneficial effects of the present invention：The present invention is by will be equipped with first gear and second gear, the first tooth in the first groove Wheel engages connection with second gear, and the lower end of first gear and second gear is respectively equipped with first leg and the second supporting leg, and first The driving mechanism that driving second gear rotates is equipped with the rear end of groove, the side of pedestal is equipped with the reading being connected with driving mechanism Mechanism, can avoid the problem that having measuring radius with ruler during traditional compasses construction and dislocation usually occurs；Second The lower end of leg is equipped with the second groove and the rotation axis through the second groove, and the lower end of the rotation axis in the second groove is equipped with positioning Pin, one end of rotation axis are equipped with turntable, and the second supporting leg is equipped with the second fixed mechanism of fixed turntable, can rotate pilot pin Into the second groove, compasses folding and unfolding is convenient, avoids the occurrence of phenomenon of hurting sb.'s feelings, and can realize that multi-angle is fixed, and avoids when two compasses When leg angle is bigger, there is pilot pin slipping phenomenon；First fixed mechanism facilitates the disassembly and installation of drawing pen, with existing skill Art is compared, and can use easy to carry, good reliability, avoids pilot pin from hurting sb.'s feelings phenomenon.

The feature and advantage of the present invention will be described in detail by embodiment combination attached drawing.

【Brief description of the drawings】

Fig. 1 is a kind of structure diagram of compasses of the present invention；

Fig. 2 is the enlarged drawing of A in Fig. 1；

Fig. 3 is the structure diagram of the first fixed mechanism；

Fig. 4 is the enlarged drawing of B in Fig. 1.

In figure：1- pedestals, the first grooves of 2-, 3- driving mechanisms, 4- first gears, 5- second gears, 6- first fix machine Structure, the second fixed mechanisms of 7-, 8- reading mechanisms, 9- first legs, the second supporting legs of 10-, 11- pilot pins, 12- drawing pens, 13- hands Handle, the second grooves of 14-, 15- rotation axis, 16- turntables, 17- openings, 31- mounting bases, 32- worm bodies, the 5th gears of 33-, 34- Connector under adjustment cap, 61- trough-shaped bodies, 62-, the upper connectors of 63-, 64- elastic compressions body, 65- rotors, 66- fastening bodies, 67- detent projections, 68- arch sections, 71- bearings, 72- slide masses, 73- cap bodies, 74- springs, 75- stop step, 76- the 3rd Groove, the 3rd gears of 81-, the 4th gears of 82-, 83- transparent cover bodies, the first scale areas of 84-, the second scale areas of 85-, 86- first Reading pointer, 87- the second reading pointers.

【Embodiment】

Refering to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of compasses of the present invention, including pedestal 1, the first groove 2, driving mechanism 3, the One gear 4, second gear 5, the first fixed mechanism 6, the second fixed mechanism 7, reading mechanism 8, first leg 9, the second supporting leg 10, Pilot pin 11, drawing pen 12, handle 13, the second groove 14, rotation axis 15 and turntable 16, the lower end of the pedestal 1 are equipped with first Groove 2, first groove 2 is interior to be equipped with first gear 4 and second gear 5, the first gear 4 and 5 company of engagement of second gear Connect, the lower end of the first gear 4 and second gear 5 is respectively equipped with 9 and second supporting leg 10 of first leg, the first leg 9 Lower end be equipped with the first fixed mechanism 6, first fixed mechanism 6 is equipped with drawing pen 12, the lower end of second supporting leg 10 Equipped with the second groove 14 and the rotation axis 15 through the second groove 14, the lower end of the rotation axis 15 in second groove 14 is equipped with Pilot pin 11, one end of the rotation axis 15 are equipped with turntable 16, and second supporting leg 10 second equipped with fixed turntable 16 is solid Determine mechanism 7, the driving mechanism 3 that driving second gear 5 rotates, the side of the pedestal 1 are equipped with the rear end of first groove 2 Equipped with the reading mechanism 8 being connected with driving mechanism 3, the upper end of the pedestal 1 is equipped with handle 13, and second fixed mechanism 7 wraps Include bearing 71, slide mass 72, cap body 73, spring 74 and stop step 75, second supporting leg 10 is equipped with bearing 71, the branch Slide mass 72 is equipped with seat 71, the upper end of the slide mass 72 is equipped with cap body 73, and the slide mass 72 is in the lower section of bearing 71 Equipped with step 75 is stopped, spring 74, the turntable 16 are arranged with the slide mass 72 stopped between step 75 and bearing 71 Side face be equipped with and be uniformly distributed and include the with matched 3rd groove 76 in lower end of slide mass 72, the reading mechanism 8 Three gears 81, the 4th gear 82, transparent cover body 83, the first scale area 84, the second scale area 85, the first reading pointer 86 and second Reading pointer 87, the side of the pedestal 1 are equipped with the 3rd gear 81 and the 4th gear 82, the 3rd gear 81 and driving mechanism 3 connections, the 4th gear 82 engage connection with the 3rd gear 81, divide on the outside of the 3rd gear 81 and the 4th gear 82 Not She You the first reading pointer 86 and the second reading pointer 87, the side of the pedestal 1 is equipped with the 3rd gear 81 and the 4th of the cover The transparent cover body 83 of gear 82, the transparent cover body 83 are equipped with the first scale area 84 and the second scale area 85, first quarter Degree 84 and second scale area 85 of area is engaged with the first reading pointer 86 and the second reading pointer 87 respectively, the driving mechanism 3 Including mounting base 31, worm body 32, the 5th gear 33 and adjustment cap 34, mounting base 31 is equipped with the upper end of first groove 2, The mounting base 31 is equipped with rotatable worm body 32, and the front end of the worm body 32 engages connection with second gear 5, described Worm body 32 is equipped with the 5th gear 33 for engage connection with the 3rd gear 81 in the first groove 2, the pedestal 1 equipped with for The opening 17 that 5th gear 33 exposes, the rear end of the worm body 32 are equipped with adjustment cap 34, the 3rd gear 81 and the 5th tooth Wheel 33 tooth ratio be：1:1, the tooth ratio of the 3rd gear 81 and the 4th gear 82 is：1:10, first fixed mechanism 6 wraps The lower connector 62, two of trough-shaped body 61, two upper connector 63, elastic compression body 64, rotor 65 and fastening body 66 are included, it is described The lower end of first leg 9 is equipped with trough-shaped body 61, and the front lower portion of two cell walls of the trough-shaped body 61 is equipped with lower connector 62, The lower end of the elastic compression body 64 is rotatably connected with lower connector 62, the upper front end of two cell walls of the trough-shaped body 61 Connector 63 is equipped with, the upper connector 63 is equipped with rotatable rotor 65, and the upper end of the rotor 65 is equipped with The fastening body 66 being pressed in the upper-end front of elastic compression body 64, the centre of the elastic compression body 64 are equipped with the arc to arch upward backward Shape part 68, the seal face that the arch section 68 compresses drawing pen 12 are equipped with equally distributed detent projection 67.

The course of work of the present invention：

A kind of compasses of the present invention during the work time, rotate counterclockwise adjustment cap 34, and adjustment cap 34 drives 32 turns of worm body Dynamic, worm body 32 drives the 5th gear 33 and second gear 5 to rotate, and second gear 5 drives first gear 4 to rotate, first gear 4 Drive 9 and second supporting leg of first leg, 10 counter motion respectively with second gear 5, and the 5th gear 33 drives 81 turns of the 3rd gear Dynamic, the 3rd gear 81 drives the 4th gear 82 to rotate, and the 3rd gear 81 and the 4th gear 82 drive the first reading pointer 86 respectively Rotated with the second reading pointer 87, by the first reading pointer 86 and the second reading pointer 87 respectively in the first scale area 84 and The signified graduation mark in two scale area 85 carries out reading, determines to draw diameter of a circle, the first scale area 84 and the second scale area 85 Unit be respectively millimeter and centimetre, the first scale area 84 and the second scale area 85 are into circle-shaped equally distributed from one to ten Scale.

When pilot pin 11 needs to carry out angular adjustment, pull up cap body 73 and drive slide mass 72 to move upwards, until The lower end of slide mass 72 removes completely out of the 3rd groove 76, and then rotational positioning pin 11 carries out angular adjustment, completion to be regulated Afterwards, cap body 73 is unclamped, stops that step 75 drives slide mass 72 to move downward under the action of spring 74, makes the lower end of slide mass 72 The 3rd corresponding groove 76 of insertion.

When pilot pin 11 needs to fold into the second groove 14, operate same pilot pin 11 angular adjustment operation.

When drawing pen 12 is fixed, drawing pen 12 is inserted into the groove of trough-shaped body 61, then rotates down rotor 65, turned Kinetoplast 65 drives fastening body 66 to rotate and is pressed in the upper-end front of elastic compression body 64, meanwhile, the upper end of elastic compression body 64 exists It can rotate backward under the action of fastening body 66, drawing pen 12 is pressed in the groove of trough-shaped body 61 by elastic compression body 64, works as drawing When pen 12 needs dismounting, rotor 65 is pulled upwards and is rotated, until the upper-end front of fastening body 66 from elastic compression body 64 moves up Remove.

Compared with prior art, easy to carry, good reliability can be used, avoids pilot pin from hurting sb.'s feelings phenomenon.

Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after Scheme belong to protection scope of the present invention.

Claims

A kind of 1. compasses, it is characterised in that：Including pedestal (1), the first groove (2), driving mechanism (3), first gear (4), Two gears (5), the first fixed mechanism (6), the second fixed mechanism (7), reading mechanism (8), first leg (9), the second supporting leg (10), pilot pin (11), drawing pen (12), handle (13), the second groove (14), rotation axis (15) and turntable (16), the seat The lower end of body (1) is equipped with the first groove (2), and first gear (4) and second gear (5) are equipped with first groove (2), described First gear (4) engages connection with second gear (5), and the lower end of the first gear (4) and second gear (5) is respectively equipped with One supporting leg (9) and the second supporting leg (10), the lower end of the first leg (9) are equipped with the first fixed mechanism (6), and described first fixes Mechanism (6) is equipped with drawing pen (12), and the lower end of second supporting leg (10) is equipped with the second groove (14) and through the second groove (14) rotation axis (15), the lower end of the rotation axis (15) in second groove (14) are equipped with pilot pin (11), the rotation One end of axis (15) is equipped with turntable (16), and second supporting leg (10) is equipped with the second fixed mechanism (7) of fixed turntable (16), The driving mechanism (3) that driving second gear (5) rotates, the side of the pedestal (1) are equipped with the rear end of first groove (2) Equipped with the reading mechanism (8) being connected with driving mechanism (3), the upper end of the pedestal (1) is equipped with handle (13), and described second fixes Mechanism (7) includes bearing (71), slide mass (72), cap body (73), spring (74) and stops step (75), second supporting leg (10) bearing (71) is equipped with, slide mass (72) is equipped with the bearing (71), the upper end of the slide mass (72) is equipped with cap Body (73), the slide mass (72) is equipped with the lower section of bearing (71) stops step (75), the stop step (75) and bearing (71) be arranged with spring (74) on the slide mass (72) between, the side face of the turntable (16) be equipped be uniformly distributed and with slip Matched 3rd groove (76) in lower end of body (72), the reading mechanism (8) include the 3rd gear (81), the 4th gear (82), transparent cover body (83), the first scale area (84), the second scale area (85), the first reading pointer (86) and the second reading refer to Pin (87), the side of the pedestal (1) are equipped with the 3rd gear (81) and the 4th gear (82), the 3rd gear (81) and driving Mechanism (3) connects, and the 4th gear (82) engages connection, the 3rd gear (81) and the 4th gear with the 3rd gear (81) (82) the first reading pointer (86) and the second reading pointer (87) are respectively equipped with outside, the side of the pedestal (1) is equipped with The transparent cover body (83) of the 3rd gear (81) of the cover and the 4th gear (82), the transparent cover body (83) are equipped with the first scale area (84) and the second scale area (85), first scale area (84) and the second scale area (85) respectively with the first reading pointer (86) It is engaged with the second reading pointer (87).
A kind of 2. compasses as claimed in claim 1, it is characterised in that：The driving mechanism (3) includes mounting base (31), worm screw Body (32), the 5th gear (33) and adjustment cap (34), are equipped with mounting base (31), the peace in the rear end of first groove (2) Dress seat (31) is equipped with rotatable worm body (32), and connection, institute are engaged in the front end of the worm body (32) with second gear (5) State worm body (32) and the 5th gear (33) that connection is engaged with the 3rd gear (81), the pedestal are equipped with the first groove (2) (1) opening (17) exposed for the 5th gear (33) is equipped with, the rear end of the worm body (32) is equipped with adjustment cap (34), institute The tooth ratio for stating the 3rd gear (81) and the 5th gear (33) is：1:1.
A kind of 3. compasses as claimed in claim 1, it is characterised in that：3rd gear (81) and the tooth of the 4th gear (82) Than for：1:10.
A kind of 4. compasses as claimed in claim 1, it is characterised in that：First fixed mechanism (6) include trough-shaped body (61), Two lower connectors (62), two upper connector (63), elastic compression body (64), rotor (65) and fastening bodies (66), it is described The lower end of first leg (9) is equipped with trough-shaped body (61), and the front lower portion of two cell walls of the trough-shaped body (61) is equipped with lower company Junctor (62), the lower end of the elastic compression body (64) are rotatably connected with lower connector (62), and the two of the trough-shaped body (61) The upper front end of a cell wall is equipped with connector (63), and the upper connector (63) is equipped with rotatable rotor (65), The upper end of the rotor (65) is equipped with the fastening body (66) being pressed in the upper-end front of elastic compression body (64).
A kind of 5. compasses as claimed in claim 4, it is characterised in that：The centre of the elastic compression body (64) is equipped with to rear arch The arch section (68) risen, the seal face that the arch section (68) compresses drawing pen (12) are convex equipped with equally distributed dentation Rise (67).