CN204123859U - Mathematics appliance has the ruler of angle mapping function - Google Patents

Mathematics appliance has the ruler of angle mapping function Download PDF

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Publication number
CN204123859U
CN204123859U CN201420592662.8U CN201420592662U CN204123859U CN 204123859 U CN204123859 U CN 204123859U CN 201420592662 U CN201420592662 U CN 201420592662U CN 204123859 U CN204123859 U CN 204123859U
Authority
CN
China
Prior art keywords
chi
following
convex body
slide block
fixation clamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420592662.8U
Other languages
Chinese (zh)
Inventor
刘海坤
宫禹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Normal University
Original Assignee
Harbin Normal University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin Normal University filed Critical Harbin Normal University
Priority to CN201420592662.8U priority Critical patent/CN204123859U/en
Application granted granted Critical
Publication of CN204123859U publication Critical patent/CN204123859U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

Mathematics appliance has a ruler for angle mapping function, it is characterized in that comprising square plate, fixation clamp, coordinate line and curve; Square plate front is provided with equidistantly by the locating hole of matrix arrangement; Fixation clamp is divided into single pin fixation clamp and double-legged fixation clamp, and the fixing buckle of both feet is divided into straight double-legged fixation clamp and oblique double-legged fixation clamp; Coordinate line is two, and every bar two ends are connected with the locating button with fixing hole clamping; Curve is band elastic force core flexible cord; Position, the position adjustable of this practical initial point, precision height curve transition is more smooth-going, and airborne dust does not waste resource, easy to use convenient, is suitable for application.

Description

Mathematics appliance has the ruler of angle mapping function
Technical field
The utility model relates to a kind of mathematical education and schooling apparatus, particularly relates to the ruler that a kind of mathematics appliance has angle mapping function.
Background technology
In the teaching and study of mathematics, usually relate to drafting and the measurement at straight line and angle, the drafting carrying out straight line and angle must rely on instrument with when measuring, and standing crop hornwork is all semicircle, and taking and placing are all compared and taken up room, and still need to be improved.
Utility model content
In order to the utility model that solves the problem newly provides the ruler that a kind of mathematics appliance has angle mapping function.
The technical solution adopted in the utility model is: a kind of mathematics appliance has the ruler of angle mapping function, it is characterized in that comprising strip top chi and the following chi of strip, top chi and following chi one end hinged, below the chi of top with following chi above coplanar, when top chi closes parallel with following chi, overlapping with following chi upper part below the chi of top, lower convex body is not provided with following chi superimposed thereon part below the chi of top, concordant with below following chi below lower convex body, above following chi not with top chi below lap be provided with upper convex body, concordant with above the chi of top above upper convex body, upper convex body is provided with longitudinal guide groove, slide block is provided with in guide groove, be connected by connecting rod between slide block with top chi, the two ends of connecting rod are hinged on slide block and top chi respectively, slide block is provided with calibration indicator sign, corresponding graduation indication is marked on epirelief body and is provided with angle index, slide block is connected with trip bolt, above the chi of top, above outer ledge and upper convex body sand, outer ledge is respectively equipped with length scale, the free termination of following chi is fixedly connected with elastic force buckle, and elastic force buckle engages with the groove of the free termination of top chi, be provided with the depression opened to chi direction, top below lower convex body, be provided with cushion block in depression, cushion block one end is hinged in depression, and hinged place is provided with the torsion spring of cushion block free end bullet to chi direction, top.
Further, described top chi and hinged place, following chi one end are provided with rotating shaft, and rotating shaft is hollow structure, and axle center is provided with cross coordinate.
The setting of the upper and lower convex body of the utility model makes its structural strength large, during use, bottom surface leveling ruler body not easily tilts, when in merging, following chi is to parastate, calibration indicator sign on slide block aligns with angle index zero graduation, expansion pull sliding block to vertically move along guide groove at connecting rod after following chi, it is identical with upper following chi open angle that calibration indicator sign points to corresponding angle index, inner edge or the outside that so just can use following chi are carried out the drafting at angle and measure, draw enforcement can by trip bolt by slider locking on upper convex body, ensure stability, once can draw angle of departure, first to need not fix a point to rule again as another limit of protractor, more convenient, upper following chi is opened the ejection of rear cushion block and is positioned at below the chi of top, makes it more steady, and the power that elastic force buckle can overcome torsion spring no time makes chi below draw close merging, for ruler after closing up, takes up room little, is easy to carry and deposits.
Accompanying drawing explanation
Fig. 1 is overview above following chi merging phase in the utility model embodiment.
Fig. 2 is overview below following chi merging phase in the utility model embodiment.
Fig. 3 is view above following chi deployed condition in the utility model embodiment.
Fig. 4 is following chi deployed condition lower view in the utility model embodiment
Number in the figure title: 1 top chi; 2 following chis; 3 times convex bodys; Convex body on 4; 5 guide grooves; 6 slide blocks; 7 connecting rods; 8 calibration indicator signs; 9 angle indexs; 10 trip bolts; 11 length scale; 12 elastic force buckles; 13 grooves; 14 depressions; 15 cushion blocks.
Detailed description of the invention
As shown in Figures 1 to 4, this mathematics appliance has the ruler of angle mapping function to be provided with strip top chi 1 and the following chi 2 of strip to the utility model embodiment, is transparent material, top chi and following chi one end hinged, below the chi of top with following chi above coplanar, when top chi closes parallel with following chi, overlapping with following chi upper part below the chi of top, lower convex body 3 is not provided with following chi superimposed thereon part below the chi of top, concordant with below following chi below lower convex body, above following chi not with top chi below lap be provided with upper convex body 4, concordant with above the chi of top above upper convex body, upper convex body is provided with longitudinal guide groove 5, slide block 6 is provided with in guide groove, be connected by connecting rod 7 between slide block with top chi, the two ends of connecting rod are hinged on slide block and top chi respectively, slide block is provided with calibration indicator sign 8, corresponding graduation indication is marked on epirelief body and is provided with angle index 9, slide block is connected with trip bolt 10, above the chi of top, above outer ledge and upper convex body sand, outer ledge is respectively equipped with length scale 11, the free termination of following chi is fixedly connected with elastic force buckle 12, and elastic force buckle engages with the groove 13 of the free termination of top chi, be provided with the depression 14 opened to chi direction, top below lower convex body, be provided with cushion block 15 in depression, cushion block one end is hinged in depression, and hinged place is provided with the torsion spring of cushion block free end bullet to chi direction, top.The setting of the upper and lower convex body of the present embodiment makes its structural strength larger, during use, bottom surface is smooth, better fit with drawing, chi body not easily tilts, when in merging, following chi is to parastate, calibration indicator sign on slide block aligns with angle index zero graduation, expansion pull sliding block to vertically move along guide groove at connecting rod after following chi, it is identical with upper following chi open angle that calibration indicator sign points to corresponding angle index, this angle index line is non-equidistant arrangement, inner edge or the outside that so just can use following chi are carried out the drafting at angle and measure, draw enforcement can by trip bolt by slider locking on upper convex body, ensure stability, once can draw angle of departure, first to need not fix a point to rule again as another limit of protractor, more convenient, upper following chi is opened the ejection of rear cushion block and is positioned at below the chi of top, makes it use more steady, and the power that elastic force buckle can overcome torsion spring no time makes chi below draw close merging, for ruler after closing up, takes up room little, is easy to carry and deposits.
When the utility model is implemented, align with the summit at angle better during in order to use, on top chi and the hinged place rotating shaft of following chi one end can be set to hollow structure, axle center is provided with cross coordinate, not only can align better, can also be suitable for the application of opaque chi body.
Be only the utility model preferred embodiment in sum, all equivalence modifications of doing according to the application and prior art are added and are all considered as the utility model technology category.

Claims (2)

1. mathematics appliance has a ruler for angle mapping function, it is characterized in that comprising strip top chi and the following chi of strip, top chi and following chi one end hinged, below the chi of top with following chi above coplanar, when top chi closes parallel with following chi, overlapping with following chi upper part below the chi of top, lower convex body is not provided with following chi superimposed thereon part below the chi of top, concordant with below following chi below lower convex body, above following chi not with top chi below lap be provided with upper convex body, concordant with above the chi of top above upper convex body, upper convex body is provided with longitudinal guide groove, slide block is provided with in guide groove, be connected by connecting rod between slide block with top chi, the two ends of connecting rod are hinged on slide block and top chi respectively, slide block is provided with calibration indicator sign, corresponding graduation indication is marked on epirelief body and is provided with angle index, slide block is connected with trip bolt, above the chi of top, above outer ledge and upper convex body sand, outer ledge is respectively equipped with length scale, the free termination of following chi is fixedly connected with elastic force buckle, and elastic force buckle engages with the groove of the free termination of top chi, be provided with the depression opened to chi direction, top below lower convex body, be provided with cushion block in depression, cushion block one end is hinged in depression, and hinged place is provided with the torsion spring of cushion block free end bullet to chi direction, top.
2. mathematics appliance according to claim 1 has the ruler of angle mapping function, and it is characterized in that described top chi and hinged place, following chi one end are provided with rotating shaft, rotating shaft is hollow structure, and axle center is provided with cross coordinate.
CN201420592662.8U 2014-10-15 2014-10-15 Mathematics appliance has the ruler of angle mapping function Expired - Fee Related CN204123859U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420592662.8U CN204123859U (en) 2014-10-15 2014-10-15 Mathematics appliance has the ruler of angle mapping function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420592662.8U CN204123859U (en) 2014-10-15 2014-10-15 Mathematics appliance has the ruler of angle mapping function

Publications (1)

Publication Number Publication Date
CN204123859U true CN204123859U (en) 2015-01-28

Family

ID=52380245

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420592662.8U Expired - Fee Related CN204123859U (en) 2014-10-15 2014-10-15 Mathematics appliance has the ruler of angle mapping function

Country Status (1)

Country Link
CN (1) CN204123859U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106643432A (en) * 2016-12-13 2017-05-10 国网河南省电力公司洛阳供电公司 Power dedicated steel tube bending measurer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106643432A (en) * 2016-12-13 2017-05-10 国网河南省电力公司洛阳供电公司 Power dedicated steel tube bending measurer

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150128

Termination date: 20151015

EXPY Termination of patent right or utility model