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West pointer

A pointer and western needle technology, applied in the field of natural pointing devices, to achieve the effects of easy processing, low cost, and anti-static interference

Inactive Publication Date: 2006-07-26
倪洪印
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compass is one of the four great inventions in ancient my country. It has played an extremely important role in many aspects of human life. However, there is still no pointing needle that uses the interaction force between objects to realize the east-west direction.

Method used

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Embodiment Construction

[0020] see figure 1 , figure 2 , the present invention is an embodiment of a west needle, which mainly includes a rotatable pointer 2, a steel vertical needle 9 supporting the pointer 2, and a casing 2. The pointer 2 of the west needle is made of red copper material. The needle body and the two poles of the pointer 2 have no burrs. A mortar cap 3 is processed in the middle of the pointer 2. The bottom of the mortar cap 3 is a conical socket. One end of the needle body of the pointer 2 is coated with varnish to adjust The graphite is used as the guide end 1. The shell 6 is a bottomed cylinder made of copper material, and the shell 6 is lined with an antistatic rubber insulating layer 5 . The copper base 4 at the lower end of the steel vertical pin 9 is fixed on the rubber insulating layer 5 at the center of the inner bottom of the shell 6 . Buckle the mortar cap 3 in the middle of the pointer 2 on the upper end of the steel vertical needle 9, cover the upper port of the cas...

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Abstract

The invention relates to a west-pointer comprising rotatable pointer and outer shell, which is characterized in that the pointer is made of copper material with a graphite coating on one end surface of the copper pointer. The outer shell is a tubular being made of copper material with a bottom and an antistatic insulating layer on its inside lining. The tubular outer shell is provided with a glass covering and a copper net layer covering outside of the glass covering, the downward flange of the copper net being contacted with the copper outer shell for shielding outside charge and weakening outside magnetic field effect. The inventive west-pointer has substantially same function as compass and provides a non-magnetic east and west direction pointer.

Description

technical field [0001] The invention relates to a natural pointing device, in particular to a non-magnetic compass pointing in the east-west direction. Background technique [0002] At present, the known natural pointing device has a north-south pointing compass, and the compass utilizes the effect of geomagnetism on the movable small magnetic needle to realize north-south pointing. The compass is one of the four great inventions in ancient my country. It has played an extremely important role in many aspects of human life. However, there is still no pointing needle that utilizes the interaction force between objects to realize the east-west direction. Therefore, be badly in need of developing a kind of nonmagnetic east-west direction compass, utilize it to carry out popular science demonstration and scientific research, and have the similar function of compass. Contents of the invention [0003] The object of the present invention is to solve the problems in the prior ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C17/00
Inventor 倪洪印
Owner 倪洪印
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