CN2239645Y

CN2239645Y - Shorthand rotary disk

Info

Publication number: CN2239645Y
Application number: CN 95208163
Authority: CN
Inventors: 林国钧; 李坚
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-17
Filing date: 1995-04-17
Publication date: 1996-11-06
Anticipated expiration: 2005-04-17

Abstract

The utility model relates to a shorthand rotary disk, wherein, a panel is provided with holes; multiplication signs and equal signs are arranged between holes; the center of a circle is provided with a central hole; a bottom plate is provided with three lines of numbers along the circumference of the circle; the three lines of numbers orderly represents multiplication numbers, multiplicand numbers and multiplier numbers; the panel and the bottom plate which are laminated are fixed by a screw and a nut. When the utility model is used, the panel is rotated, the multiplicand numbers and the multiplier numbers are selected by means of holes, and then the multiplication numbers are acquired. The utility model is simple and practical, is convenient for carrying, makes teaching in joy, and is favorable for students to grasp a multiplication table. The bottom plate is marked with province names and capital city names. Corresponding names can be checked out by means of rectangular holes on the panel.

Description

Shorthand rotary disk

The utility model relates to a kind of Shorthand rotary disk, is the utensil that a kind of primary and secondary students of help learnt and took down in short-hand computing, history, geographical knowledge, belongs to the technical field of simple and easy learning equipment.

When the pupil changes the multiplication and division computing in beginning over to by signed magnitude arithmetic(al), a lot of difficulties always appear, be difficult to for the moment grasp, also be difficult when teacher and parental counseling, studying history, geographical rudimentary knowledge also are to be difficult to expertly remember, and still do not have the utensil that is suitable at present, can carry, help primary and secondary students to remember the content of learning rapidly, can improve results of learning.

The purpose of this utility model is that a kind of Shorthand rotary disk will be provided, it can overcome above-mentioned shortcoming, utilize a face and a chassis to be combined into a rotating disk, be printed on numeral on the chassis, or the content on history, ground, the appropriate location of the face first half is provided with three holes, when rotating face, can select the numeral and historical, the geographical title of required computing by the hole on the panel, read its answer from another hole at last, primary and secondary students can utilize the learning content of this rotating disk examination oneself at any time alone like this, and whether its answer is correct, can significantly improve results of learning.

The purpose of this utility model is achieved in that

Three holes are arranged at round panel top, have between two holes between multiplication sign and another hole equal sign is arranged, and there is a center pit in the center of circle, and base plate is the triplex row numeral circumferentially, are the product numeral successively, multiplier numeral and multiplicand numeral, and the superimposed screw of using of panel and base plate, nut is fixed.Numeral on the base plate is not upright, and some is inclination or stands upside down.Panel has two rectangular openings to be positioned on the diameter of horizontal direction, and there is a center pit in the center of circle, and base plate has the title in 2 line display provinces and the title of expression provincial capital along circumference, and panel and base plate are superimposed, and fix with screw, nut.Panel has 2 rectangular openings and a center pit, and base plate is made the radius of 36 five equilibriums by the center of circle, and radius is marked with historical dynasty and time numeral.

Fig. 1 is a rotating disk panel synoptic diagram.

Fig. 2 is the base plate of Shorthand rotary disk.

Fig. 3 is the Shorthand rotary disk synoptic diagram of multiplication pithy formula.

Fig. 4 is a Shorthand rotary disk panel synoptic diagram.(province, provincial capital's contrast)

Fig. 5 is a Shorthand rotary disk base plate synoptic diagram.

Fig. 6 is a Shorthand rotary disk panel synoptic diagram.(historical dynasty contrast in Christian era)

Fig. 7 is a Shorthand rotary disk base plate synoptic diagram.

Now in conjunction with the accompanying drawings the structure of Shorthand rotary disk is described in detail:

By Fig. 1, round panel (1) top porose (3) (4) (5), multiplication sign (6) is arranged between the hole (3) (4), one equal sign (7) is arranged between the hole (4) (5), panel (1) Lower Half has the thick black line of setting to constitute a semicircle (8), indicate the Chinese character of multiplication pithy formula Shorthand rotary disk in semicircle (8), there is a center pit (9) at position, the center of circle.

By Fig. 2, the shape size of base plate (2) is consistent with panel, circumference uniform distribution three item of digital along different radii, the first row cylindrical numeral (10) is the product numeral, the second line number word is the numeral (11) of multiplicand, the circle numeral is the numeral (12) of multiplier in the 3rd row, and also there is a center pit (13) at position, the center of circle, and is consistent with the hole (9) of panel (1).

By Fig. 3, panel (1) is placed on the base plate (2), with screw (14), nut (15) is fixing, forms the Shorthand rotary disk of a multiplication pithy formula.

Rotary panel during use (1), make hole (3) and (4) aim at multiplicand numeral (11) and multiplier (12), so can from hole (5), find product numeral (10), rotary panel can select number arbitrarily, can both find corresponding product, the triplex row numeral (10) (11) (12) of face base plate (2) is not upright position, can be the numeral that tilts or stand upside down, the numeral of expression all is upright shape in the rotary panel (1) like this, hole (3) (4) (5).

By Fig. 4, panel (16) has two rectangular openings (17) (18), is positioned at above the diameter of horizontal direction of panel (16), and home position also has a center pit (19), and the below in hole indicates " Chinese province, provincial capital's Shorthand rotary disk ".

By Fig. 5, base plate (20) has 2 style of writing words along circumference, and first row is the title (21) (for example Yunnan) in province, and second row is the title (22) of provincial capital (for example Kunming).Panel (16) and base plate (20) with screw and nut fixing after, rotary panel can be seen the province title from rectangular opening (17), just can find provincial capital's title at another rectangular opening (18), use so repeatedly, make primary and secondary students can learn province, provincial capital's title rapidly by heart.

By Fig. 6,7, panel (23) also has 2 rectangular openings (17) (18) and a center pit (19), and the below in hole indicates " contrasting Shorthand rotary disk Christian era in Chinese history dynasty ", and base plate (24) is made radius (25) by the center of circle to circumference and is divided into 36.Radius indicates the summer on (25) successively, the merchant, (Western Zhou Dynasty in week, the Eastern Zhou Dynasty), Qin Han, (the Eastern Han Dynasty, the Western Han Dynastry) three states (another name for Sichuan Province Wu Wei) Western Jin Dynasty, the Eastern Jin Dynasty 16 the states, (Southern Dynasties of the Northern and Southern Dynasties, the Northern Dynasties) Sui, Tang, the Wu Dai-Shi Guo, Song, the Liao Dynasty, unit, bright, clearly, the Republic of China, approximately before the 21 century-preceding century, approximately preceding 16th century-Yue is preceding 1066, makes an appointment with preceding 1066-preceding 221, and preceding 221-preceding 206, before 206-Christian era 23,25-220,220-280,246-316,317-439,420-589,581-618,618-907,902-979,960-1279,907-1125,1279-1368,1368-1644,1644-1911,1912-1949.

Literal and digit position and radius (25) direction adapts.

Superimposed panel (23) and base plate (24) then, fix with screw, nut, rotary panel (23), finding historical dynasty title (for example selecting the Ming Dynasty) from rectangular opening (17), can to find the time at another rectangular opening (18) be 1368-1644.(Fig. 6)

Compared with prior art, Shorthand rotary disk has following advantages:

1. simple in structure, be easy to carry.

2. can help primary and secondary students be familiar with rapidly keeping firmly in mind multiplication pithy formula and history, The knowledge of geographical aspect is taught through lively activities, and improves its results of learning.

Claims

1. Shorthand rotary disk, it is characterized in that: three holes (3) (4) (5) are arranged at round panel (1) top, multiplication sign (5) is arranged between the hole (3) (4), hole (4) (5) equal sign (6) arranged, there is a center pit (9) in the center of circle, base plate (2) is the triplex row numeral circumferentially, be product numeral (10) successively, multiplier numeral (11) and multiplicand numeral, panel (1) and base plate (2) are superimposed with screw (14), and nut (15) is fixing.

2. rotating disk according to claim 1 is characterized in that: the numeral (10) (11) (12) on the base plate (2) is not upright, and some is inclination or stands upside down.

3. Shorthand rotary disk, it is characterized in that: panel (16) has two rectangular openings (17) (18) to be positioned on the diameter of horizontal direction, there is a center pit (19) in the center of circle, base plate (20) has the title (21) in 2 line display provinces and the title (22) of expression provincial capital along circumference, panel (16) is superimposed with base plate (20), fixes with screw, nut.

4. Shorthand rotary disk, it is characterized in that: panel (23) has 2 rectangular openings (7) (18) and a center pit (19), and base plate (24) is made the radius (25) of 36 five equilibriums by the center of circle, and radius (25) is marked with historical dynasty and time numeral.