CN202274848U - Novel large aperture measuring tool - Google Patents

Novel large aperture measuring tool Download PDF

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Publication number
CN202274848U
CN202274848U CN2011203935559U CN201120393555U CN202274848U CN 202274848 U CN202274848 U CN 202274848U CN 2011203935559 U CN2011203935559 U CN 2011203935559U CN 201120393555 U CN201120393555 U CN 201120393555U CN 202274848 U CN202274848 U CN 202274848U
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CN
China
Prior art keywords
large aperture
novel large
extension rod
utility
measuring tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011203935559U
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Chinese (zh)
Inventor
余修铭
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Individual
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Individual
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Filing date
Publication date
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Priority to CN2011203935559U priority Critical patent/CN202274848U/en
Application granted granted Critical
Publication of CN202274848U publication Critical patent/CN202274848U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a novel large aperture measuring tool, comprising an inner diameter dialgage, wherein one end corresponding to the movable measuring head of the inner diameter dialgage is provided with a lengthened rod. The measuring tool can enable the measuring range to be widened, and the measuring precision to be increased and is convenient in use.

Description

A kind of novel large aperture survey instrument
Technical field
The utility model relates to a kind of measurer, refers more particularly to a kind of novel large aperture survey instrument.
Background technology
Existing micrometer inside caliper measurement range is big; Through the different size extension rod, the hole that maximum detection amount diameter is 6000 millimeters, precision is high; Coincidence measurement principle (measured size and survey instrument are on same axis); But shortcoming is: measure inconvenience, accuracy of measurement largely depends on the functipnal capability and the skill level of survey crew, causes measuring error easily.Existing dial bore gage convenient measurement, reading is simple, but shortcoming is: measurement range is little, the maximum hole of measuring 450 millimeters.Along with the change of processing process, the needs design is a kind of can to enlarge measurement range, improves measuring accuracy, survey instrument easy to use again.
Summary of the invention
The goal of the invention of the utility model provides a kind of novel large aperture survey instrument, can enlarge measurement range, improves measuring accuracy, and is easy to use again.
For realizing the goal of the invention of the utility model, the technical scheme of employing is:
This survey instrument comprises a dial bore gage, and the other end corresponding with the movable measuring head of this dial bore gage is provided with extension rod.
Further, said extension rod is the changed extension rod of micrometer inside caliper.
The beneficial effect of the utility model is:
The utility model has kept the main part that micrometer inside caliper can change extension rod; Original micrometer reading is partly changed system into the dial gauge number of degrees; So both kept all advantages of micrometer inside caliper, and manipulated very simply, survey crew can find big bore dia (radially maximum through dial gauge intuitively; Axial minimum), measure the internal diameter size of macropore easily.The point contact tightness of measurement face has reduced measuring error by the control of dial gauge spring, has improved the measurement accuracy.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is done concrete description.
As shown in Figure 1; In this instance; The large aperture survey instrument comprises a dial bore gage 2; Be provided with extension rod with the movable measuring head 3 corresponding other ends of this dial bore gage 2, said extension rod is the changed extension rod of micrometer inside caliper, and this can change extension rod and flexibly connect through the connector 1 that is arranged on the dial gauge.The large aperture survey instrument of present embodiment has kept the main part that micrometer inside caliper can change extension rod; Original micrometer reading is partly changed system into the dial gauge number of degrees; So both kept all advantages of micrometer inside caliper, and manipulated very simply, survey crew can find big bore dia (radially maximum through dial gauge intuitively; Axial minimum), measure the internal diameter size of macropore easily.The point contact tightness of measurement face has reduced measuring error by the control of dial gauge spring, has improved the measurement accuracy.The novel large aperture survey instrument of present embodiment is examined and determine through pertinent instruments, confirmed the accuracy requirement that it meets.Again with it through the practical probation of survey crew, can measure macropore internal diameter, groove width, inner plane, survey crew is consistent reflect very convenient, practical.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Other modifications that those of ordinary skills make the technical scheme of the utility model perhaps are equal to replacement; Only otherwise break away from the spirit and the scope of the utility model technical scheme, all should be encompassed in the middle of the claim scope of the utility model.

Claims (2)

1. a novel large aperture survey instrument comprises a dial bore gage, it is characterized in that: the other end corresponding with the movable measuring head of this dial bore gage is provided with extension rod.
2. a kind of novel large aperture according to claim 1 survey instrument, it is characterized in that: said extension rod is the changed extension rod of micrometer inside caliper.
CN2011203935559U 2011-10-16 2011-10-16 Novel large aperture measuring tool Expired - Fee Related CN202274848U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203935559U CN202274848U (en) 2011-10-16 2011-10-16 Novel large aperture measuring tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203935559U CN202274848U (en) 2011-10-16 2011-10-16 Novel large aperture measuring tool

Publications (1)

Publication Number Publication Date
CN202274848U true CN202274848U (en) 2012-06-13

Family

ID=46195199

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203935559U Expired - Fee Related CN202274848U (en) 2011-10-16 2011-10-16 Novel large aperture measuring tool

Country Status (1)

Country Link
CN (1) CN202274848U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104613909A (en) * 2015-02-09 2015-05-13 胡俊 Precision micrometer
CN113932688A (en) * 2021-09-22 2022-01-14 成都飞机工业(集团)有限责任公司 Hole inner diameter measuring device and measuring method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104613909A (en) * 2015-02-09 2015-05-13 胡俊 Precision micrometer
CN113932688A (en) * 2021-09-22 2022-01-14 成都飞机工业(集团)有限责任公司 Hole inner diameter measuring device and measuring method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120613

Termination date: 20121016