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Vernier caliper

A technology of vernier calipers and measuring claws, applied in the field of vernier calipers, can solve the problems of lack of sounding rods, etc., and achieve the effects of saving manufacturing time and cost, ensuring quality and reliability

Inactive Publication Date: 2009-11-18
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difference between the structure of the 0-200mm and 0-300mm vernier calipers on the market and the above-mentioned vernier calipers is that there is a fine-tuning device, but there is no sounding rod

Method used

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] refer to figure 1 In this embodiment, a vernier caliper of 0-150 mm is taken as an example for illustration. The vernier caliper 100 has a main scale 1 , a slider 11 that can slide along the main scale 1 and an air blowing device 6 .

[0017] A first inner measuring claw 2 and a first outer measuring claw 3 are respectively formed above and below one end of the main ruler 1 . The first inner measuring claw 2 and the first outer measuring claw 3 can be integrally formed with the main ruler 1 . It can also be combined into one after molding separately. At the other end of the main scale 1, a depth rod 16 for measuring depth that moves in synchronization with the slider 11 is formed. In addition, a main scale scale 4 is provided on the main scale 1 along its length direction, and an auxiliary scale scale 5 is provided on the slider 11 .

[0018] The ...

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PUM

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Abstract

The invention provides a vernier caliper, which includes a main ruler with a first outer measuring claw, and a slider with a second outer measuring claw that cooperates with the first outer measuring claw, and the vernier caliper also includes a blower device, the air blowing device includes at least one air containing device located between the first outer measuring claw and the second outer measuring claw, and at least one gas passage communicated with the corresponding air containing device, the at least Each gas channel has at least one air blowing hole for blowing air to the surface of the measured object. The vernier caliper blows air and removes dust on the surface of the measured object while measuring the measured object, which can save a lot of manufacturing time and cost.

Description

technical field [0001] The invention relates to a measuring tool, in particular to a vernier caliper. Background technique [0002] The 0-150mm vernier caliper on the market is composed of a knife-edge-shaped inner measuring claw at the front end of the ruler body, a vernier frame with a knife-edge-shaped inner and outer measuring claw that cooperates with the ruler body, and a sounding rod fixed on the vernier frame. constitute. The difference between the structure of the 0-200mm and 0-300mm vernier calipers on the market and the above-mentioned vernier calipers is that there is a fine-tuning device, but there is no sounding rod. At present, in the measurement of mechanical manufacturing, the above-mentioned vernier calipers have an extremely wide range of applications. [0003] However, when the above-mentioned vernier caliper is used to measure the height of the lens module, the following problems may arise. If the finished lens is screwed into the lens holder, it is n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B3/20G01B1/00
Inventor 吴承勋
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD