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Vernier caliper

A vernier caliper and measuring claw technology, which is applied in the field of vernier calipers, can solve the problem of no depth measuring rod and the like, achieve the effect of saving manufacturing time and cost, and ensuring quality and reliability

Inactive Publication Date: 2008-07-02
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 they have 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] Referring to FIG. 1 , this embodiment takes a vernier caliper of 0-150mm 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 slide...

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Abstract

The invention relates to a vernier caliper which comprises a main ruler with a first outside-measuring claw, and a slipper with a second outside-measuring claw engaged with the first outside-measuring claw. The vernier caliper further comprises a blowing device which comprises at least one air sac positioned between the first outside-measuring claw and the second outside-measuring claw, at least one air passage communicated with the relevant air sac, and at least one blowing hole provided on the at least one air passage to provide air to the surface of an object to be measured. The vernier caliper can measure the object to be measured and simultaneously blow dust off the surface of the measured object, and has short production cycle and low 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 they have 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 ...

Claims

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Application Information

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