CN201163261Y - Sample clamper of air permeability tester - Google Patents

Sample clamper of air permeability tester Download PDF

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Publication number
CN201163261Y
CN201163261Y CNU2007201876140U CN200720187614U CN201163261Y CN 201163261 Y CN201163261 Y CN 201163261Y CN U2007201876140 U CNU2007201876140 U CN U2007201876140U CN 200720187614 U CN200720187614 U CN 200720187614U CN 201163261 Y CN201163261 Y CN 201163261Y
Authority
CN
China
Prior art keywords
sample
sample retainer
sample clamper
retainer body
air permeability
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 - Lifetime
Application number
CNU2007201876140U
Other languages
Chinese (zh)
Inventor
邵昕
李永刚
谭丽华
章健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinosteel Luoyang Institute of Refractories Research Co Ltd
Original Assignee
Sinosteel Luoyang Institute of Refractories Research Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sinosteel Luoyang Institute of Refractories Research Co Ltd filed Critical Sinosteel Luoyang Institute of Refractories Research Co Ltd
Priority to CNU2007201876140U priority Critical patent/CN201163261Y/en
Application granted granted Critical
Publication of CN201163261Y publication Critical patent/CN201163261Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a sample clamper for an air permeability tester, consisting of an inflated film, a sample clamper body, a dead ring, an upper gland and a lower gland, wherein, the inflated film is arranged inside a sample clamper; the dead ring is arranged between the upper gland and an upper port of the sample clamper body; and the section between the dead ring and the upper part of the lower gland is conical, and the conicity of the section is matched with the conicity in a lower port of the sample clamper body. The sample clamper prolongs the service life of the inflated film, improves the tightness of an upper port and a lower port of the inflated film, stops gas leakage, and is simple and convenient in assembly and operation.

Description

A kind of specimen holder of air permeability tester
Technical field
The utility model relates to refractory product air permeability tester, particularly a kind of specimen holder of this tester.
Background technology
The air permeability of refractory product is the performance that material allows gas to pass through under pressure reduction.
International standard " mensuration of fine and close shaping refractory product one air permeability of ISO 8841:1991 " has provided the structure of air permeability tester: be made up of source of the gas, gas flow measurement meter, specimen holder, liquid manometer, vernier caliper etc.The specimen holder of this air permeability is made up of upper press cover, sample retainer, lower cover, gas-filled tube and aerated film; Aerated film is made with rubber diaphragm, is cylindric, places in the cylinder shaped test piece retainer, and two ends are enclosed within on the two ends of sample retainer, and above again, lower cover compresses, and the seal face of last lower cover is the plane, relies on bolted; Aerated film is full of the pressed gas that is imported by air-filled pore outward, and is airtight, airtight to guarantee that columned sample side is inflated film.
China's national standard " GB/T3000-1999 fine and close shaping refractory product air permeability test method " adopting by equivalent international standard " ISO 8841:1991 ", the specimen holder structure of its tester is identical.
American National Standard " ASTM C 577-1999 fire resistive material air permeability test method " has provided the structure of testing apparatus, basic identical with the testing apparatus of international standard, but sample is a regular cube, the rubber finger sleeve of seal sample is two square internally and round externally frustums, rubber finger sleeve is outer non-inflatable, and fastens with inner tapered metal clamper, compresses with lifting jack again, rubber finger sleeve is closely contacted with sample, keep air-tight state.
The defective of prior art: the retainer of clamping sample in international standard and China's national standard, its sealing installation of inflating rubber film, need extract several mounting screw holes at the rubber diaphragm two ends, flange is buckled in the upward following of sample retainer respectively up and down then, method above again, that lower cover is fastening is airtight, owing to beat screw hole in installation place, rubber diaphragm two ends, be easier in the gas replenishment process tear from screw hole, because the tension force of rubber diaphragm, the rubber diaphragm operating difficulties is installed, is very easily torn rubber diaphragm in the operation and do over again; Rubber diaphragm is a tensioning state by the part of flange all the time, causes its aging speed to be accelerated.
Summary of the invention
Defectives such as the purpose of this utility model provides the specimen holder that a kind of air permeability tester is used, and to overcome existing clamper the rubber diaphragm difficulty is installed, and is aging easily.
The purpose of this utility model can realize by the following technical solutions: be provided with the taper dead ring between upper press cover and sample retainer body upper port, dead ring and to press down the upper part of the cover section tapered, its tapering respectively with sample retainer body upper port and sample retainer body lower port in tapering match; By the next fastening aerated film of compressing of last lower cover.
Advantage of the present utility model: the taper fastening means of aerated film upper and lower port in the sample retainer body, at first, improved the leakproofness of aerated film upper and lower port under inflated condition, stopped gas leakage; Secondly, need not destroy aerated film, and aerated film being the nature extended configuration under inflation situation not, having prolonged the serviceable life of aerated film, is exactly that fitting operation is very convenient at last.
Description of drawings
Accompanying drawing 1 is the structural representation of specimen holder.
Among the figure 1, lower cover, 2, sample retainer body, 3, aerated film, 4, air-filled pore, 5, dead ring, 6, upper press cover.
Embodiment
In conjunction with the accompanying drawings, specific embodiment of the utility model is described.
As shown in Figure 1: the constituting of described specimen holder by aerated film 3, sample retainer body 2, upper press cover 6 and lower cover 1, aerated film 3 is arranged on the inside of sample retainer body 2, between upper press cover 6 and sample retainer 2 upper port, be provided with taper dead ring 5, the section on dead ring 5 and lower cover 1 top is tapered, its tapering respectively with sample retainer body 2 upper port and sample retainer body 2 lower port in tapering match.By being threaded of upper press cover 6 and sample retainer body 2, the bolt of lower cover 1 and sample retainer 2 be connected to come fastening aerated film.Sample retainer body 2 one sides are provided with air-filled pore 4.

Claims (3)

1. the specimen holder of an air permeability tester, it comprises by aerated film (3), sample retainer body (2), upper press cover (6) and lower cover (1) formation, aerated film (3) is arranged on the inside of sample retainer body (2), it is characterized in that: between upper press cover (6) and sample retainer body (2) upper port, be provided with taper dead ring (5), the section on dead ring (5) and lower cover (1) top is tapered, its tapering respectively with sample retainer body (2) upper port, lower port in tapering match.
2. specimen holder according to claim 1 is characterized in that: upper press cover (6) adopts with being connected of sample retainer body (2) and is threaded.
3. specimen holder according to claim 1 is characterized in that: lower cover (1) adopts bolt to connect with being connected of sample retainer body (2).
CNU2007201876140U 2007-12-25 2007-12-25 Sample clamper of air permeability tester Expired - Lifetime CN201163261Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201876140U CN201163261Y (en) 2007-12-25 2007-12-25 Sample clamper of air permeability tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201876140U CN201163261Y (en) 2007-12-25 2007-12-25 Sample clamper of air permeability tester

Publications (1)

Publication Number Publication Date
CN201163261Y true CN201163261Y (en) 2008-12-10

Family

ID=40184196

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007201876140U Expired - Lifetime CN201163261Y (en) 2007-12-25 2007-12-25 Sample clamper of air permeability tester

Country Status (1)

Country Link
CN (1) CN201163261Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102519559A (en) * 2011-12-31 2012-06-27 中国烟草总公司郑州烟草研究院 Special fixing device for air permeability flow rate disc detection of tobaccos
CN104713811A (en) * 2015-03-31 2015-06-17 广州标际包装设备有限公司 Air permeability tester
CN106979916A (en) * 2016-01-15 2017-07-25 张家港康得新光电材料有限公司 The test device of water vapor rejection film
CN108279198A (en) * 2017-12-18 2018-07-13 广州番禺职业技术学院 A kind of packaging material gas permeability detection method based on pressure differential method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102519559A (en) * 2011-12-31 2012-06-27 中国烟草总公司郑州烟草研究院 Special fixing device for air permeability flow rate disc detection of tobaccos
CN102519559B (en) * 2011-12-31 2013-04-17 中国烟草总公司郑州烟草研究院 Special fixing device for air permeability flow rate disc detection of tobaccos
CN104713811A (en) * 2015-03-31 2015-06-17 广州标际包装设备有限公司 Air permeability tester
CN106979916A (en) * 2016-01-15 2017-07-25 张家港康得新光电材料有限公司 The test device of water vapor rejection film
CN108279198A (en) * 2017-12-18 2018-07-13 广州番禺职业技术学院 A kind of packaging material gas permeability detection method based on pressure differential method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20081210

CX01 Expiry of patent term