CN2914166Y

CN2914166Y - Zonetime contrasting ruler

Info

Publication number: CN2914166Y
Application number: CN 200620078374
Authority: CN
Inventors: 王建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-02-14
Filing date: 2006-02-14
Publication date: 2007-06-20
Anticipated expiration: 2016-02-14

Abstract

A time zone contrast ruler is characterized in that the utility model comprises a fixing ruler (1) and a moving ruler (2). The moving ruler (2) is positioned in the vertical groove of the fixing ruler (1). The fixing ruler 1 is marked with east longitude and west longitude and the corresponding time zones as well as major city names in the world. The moving ruler (22) is marked with time zones, and the moving ruler (2) is sliding in the vertical groove of the fixing ruler (1) bi-directionally. The contrast ruler is simple in structure and convenient in use. Users just need to pull the moving ruler (2) to find out the time of a city in relation to the time of another city, applicable to the finding of time zone in international telephone calls or geographical lesson teaching demonstration in primary and high schools.

Description

During the district to hindsight

Technical field

When the utility model relates to a kind of district that can search the time difference between the whole world main cities fast to hindsight.

Background technology

Between outbound tour on public duty work, visit and individual's overseas trip or two countries the caller, often to puzzle one's brains for the conversion of the time difference, one comes people to be difficult to remember residing time zone, certain city, the Chu world carries out the conversion of time, moreover much people also do not grasp the conversion method of this time difference, so give trip and make a phone call to bring inconvenience to the other side.In addition, in, the explanation to the time difference when primary school take lessons in geography is also more abstract, students hears out class does not quite understand yet, and can not grasp securely its knowledge.In China's patented claim, some when district conversion instruments are also arranged, but structure more complicated mostly, contrast do not understand, uses inconveniently, more is unfavorable for carrying.

Summary of the invention

The technical problems to be solved in the utility model mainly is for overcoming the deficiency that prior art exists, and provide a kind of simple in structure, use easily and understand when distinguishing intuitively hindsight.

Technical solution of the present utility model is:

During this district hindsight is made of the fixed ruler and the chi that moves about, the chi that moves about is positioned at the cannelure of fixed ruler.

Further technical scheme of the present utility model is:

Be marked with the number of degrees and the time zone corresponding and the whole world main cities name of east longitude, west longitude with it at fixed ruler.When the chi that moves about is marked with the district, the chi two-way slip in the cannelure of fixed ruler of moving about.

Very simple during this district to the hindsight structure, only needing to spur the chi that moves about makes the local zone time scale aim at this city name, can indicate the corresponding time in another city at once, very easy to use, be easier to carry, also can make big specification, adapt to and in classroom instruction, use, give the student demonstration directly perceived and that grasp easily, the understanding and the grasp degree that convert when improving the student to world district.

Description of drawings

Fig. 1: structural representation of the present utility model.

Fig. 2: specific embodiment synoptic diagram.

Embodiment

As Fig. 1, shown in Figure 2, the utility model is to be made of the fixed ruler 1 and the chi 2 that moves about, the chi 2 that moves about is positioned at the longitudinal fluting of fixed ruler 1 and can comes and goes slip, be marked with the longitude scale mark of east longitude 0-180 ° and west longitude 0-180 ° at fixed ruler 1, each longitude scale mark corresponding again corresponding time zone (being divided into Dong1-12Qu and Xi1-12Qu), and each time zone is corresponding with corresponding world's major cities name.And on the chi 2 that moves about, only indicate two sections and scale mark during respectively for 0-24 hour district are arranged.When needs are learnt time of another foreign city of relative Beijing time, time scale line as long as will move about on the chi 2 is aimed at Beijing (time zone is the Dong Ba district), sees that so again scale mark when another city name moves about district on the chi 2 relatively knows the local time in another city.

This can also mark with foreign language the literal on the hindsight, uses with suitable people outside.

Using method is given an example:

Referring to Fig. 2, when Beijing time is 8 of January 2, wonder that the New York time is some, at first on fixed ruler 1, find Beijing, spur slip chi 2 again and make 8 scale mark aim at Beijing, so same to hindsight on time in New York just be 19 points.Because of Beijing is distributed in Dong8Qu, and New York is distributed in Xi5Qu, and then the time in New York is 19 points on January 1.

Claims

1, during a kind of district to hindsight, it is characterized in that it is made of fixed ruler (1) and the chi that moves about (2), the chi that moves about (2) is positioned at the cannelure of fixed ruler (1).

2, during district as claimed in claim 1 to hindsight, it is characterized in that when the chi that moves about (2) is marked with the district chi that moves about (2) two-way slip in the cannelure of fixed ruler (1).