CN102128707A - Valve element airtightness testing device - Google Patents

Valve element airtightness testing device Download PDF

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Publication number
CN102128707A
CN102128707A CN2010106135589A CN201010613558A CN102128707A CN 102128707 A CN102128707 A CN 102128707A CN 2010106135589 A CN2010106135589 A CN 2010106135589A CN 201010613558 A CN201010613558 A CN 201010613558A CN 102128707 A CN102128707 A CN 102128707A
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CN
China
Prior art keywords
hole
base
briquetting
predicament
venthole
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CN2010106135589A
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Chinese (zh)
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CN102128707B (en
Inventor
高福祥
徐忠
王东
陆菊平
董会科
朱文婉
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无锡鹰贝精密轴承有限公司
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Priority to CN 201010613558 priority Critical patent/CN102128707B/en
Publication of CN102128707A publication Critical patent/CN102128707A/en
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Publication of CN102128707B publication Critical patent/CN102128707B/en

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Abstract

The invention relates to a valve element airtightness testing device and belongs to the technical field of testing clamps. The valve element airtightness testing device is characterize by comprising a pressing device (1), wherein the pressing device (1) comprises a bottom plate (1.1), a top plate (1.2) and a movable beam (1.3); the top plate (1.2) is provided with an air cylinder (3); a plurality of guide posts (2) are arranged between the bottom plate (1.1) and the top plate (1.2); the movable beam (1.3) is sleeved on the guide posts (2); a pressure block (4) is arranged at the bottom of the movable beam (1.3); a base (5) is arranged on the bottom plate (1.1); and a sealed barrel (6) is fixed below the pressure block (4). The valve element airtightness testing device can provide stable and adjustable pressing force, so the airtightness of the valve element can be tested more accurately, and the test efficiency is improved; and the operation is convenient, the structure is simple, the test efficiency is high, and the manual operation intensity is lowered.

Description

The spool air-tightness detection device

Technical field

The present invention relates to a kind of spool air-tightness detection device, belong to the inspection jig technical field.

Background technology

In present production and the life, people adopt valve to be used as the switch of pipeline inner fluid.Along with people's demand improves, the precision of all kinds of hydraulic parts is also improving constantly, and therefore the structure of various valve internal spools also becomes increasingly complex, and accuracy requirement is more and more higher.Spool need detect its impermeability before using usually.If the impermeability of spool is bad, can directly have influence on the serviceability of valve, sometimes even can cause security incident.

Past people is when detecting the impermeability of spool, adopt a kind of checkout equipment that manually compresses mostly, this assay device structures complexity that manually compresses, and complex operation, when tightly detecting the impermeability of spool with hand, each snap-in force size that produces is unstable, thereby has caused the quality testing unstable result of product.

Summary of the invention

In order to overcome above-mentioned deficiency, the invention provides a kind of simple in structurely, easy to operate, and testing result is accurate, the spool air-tightness detection device that detection efficiency is higher.

The object of the present invention is achieved like this:

A kind of spool air-tightness detection device comprises hold down gag, and described hold down gag comprises base plate, top board and moving beam, is provided with some guide pillars between described base plate and the top board, and described moving beam casing is put on guide pillar.

The bottom of described moving beam is provided with briquetting, the bottom center of described briquetting extension downwards is provided with a fixed leg, the outer rim of described fixed leg bottom is provided with the O-ring seal I, the center of this fixed leg and the center of described briquetting are provided with first venthole, one side of described briquetting is provided with second venthole, and described first venthole is connected with second venthole.

Described base plate is provided with base, the top center of described base has a up big and down small first step hole, described first step hole comprises first hole of getting out of a predicament or an embarrassing situation, hole and first of topping bar, described first gets out of a predicament or an embarrassing situation is plugged with draft tube in the hole, the top of described draft tube is exposed to first hole of getting out of a predicament or an embarrassing situation, the outer rim of described draft tube is provided with external thread, this draft tube is fixed by set nut and base, one side of described base offers air admission hole, described air admission hole and first hole of getting out of a predicament or an embarrassing situation is connected, the inside of described draft tube has a up big and down small second step hole, described second step hole comprises second hole of getting out of a predicament or an embarrassing situation, hole and second of topping bar, described second tops bar is provided with a spring in the hole, and there is a bead on the top, upper end of described spring.

The below of described briquetting is fixed with sealing bore, is provided with the O-ring seal II between the inwall of described sealing bore and the outer rim of base.

Described top board is provided with cylinder, and the piston rod of described cylinder is connected with moving beam.

In contrast to prior art, the beneficial effect that the present invention has is:

Spool air-tightness detection device of the present invention is controlled by pneumatic means and is compressed examined product, can provide and stablize adjustable snap-in force, thereby detect the impermeability of spool more accurately, has improved detection efficiency.Cylinder in the pick-up unit will move beam and press down, and make briquetting, sealing bore and base form the environment of a sealing, and before the bead that will detect usefulness withstands on the detection hole of spool.Subsequently as long as in air admission hole ventilation, observe with water that second venthole links to each other in whether produce bubble and just can detect the spool air-tightness, not only easy to operate, and simple in structure, detection efficiency is higher, has reduced manually-operated intensity.

Description of drawings

Fig. 1 is the structural representation of spool air-tightness detection device of the present invention.

Fig. 2 is the syndeton synoptic diagram of briquetting, sealing bore and base among Fig. 1.

Fig. 3 is for loading onto the synoptic diagram behind the spool to be detected among Fig. 2.

Fig. 4 is the structural representation of spool among Fig. 3.

Wherein: hold down gag 1, base plate 1.1, top board 1.2, moving beam 1.3, guide pillar 2, cylinder 3, briquetting 4, fixed leg 4.1, first venthole 4.2, second venthole 4.3, base 5, air admission hole 5.1, first step hole 5.2, first top bar hole 5.2.1, first get out of a predicament or an embarrassing situation hole 5.2.2, sealing bore 6, draft tube 7, second step hole 7.1, second top bar hole 7.1.1, second get out of a predicament or an embarrassing situation hole 7.1.2, spring 8, bead 9, spool 10, O-ring seal I 11, O-ring seal II 12.

Embodiment

As Fig. 1, the present invention relates to a kind of spool air-tightness detection device, comprise hold down gag 1, described hold down gag 1 comprises base plate 1.1, top board 1.2 and moving beam 1.3, be provided with some guide pillars 2 between described base plate 1.1 and the top board 1.2, described moving beam 1.3 is nested with between the guide pillar 2, described moving beam 1.3 with can slide up and down along guide pillar 2, described top board 1.2 is provided with cylinder 3, and the piston rod of described cylinder 3 is connected with the top of moving beam 1.3.

As Fig. 1, Fig. 2 and Fig. 3, the bottom of described moving beam 1.3 is provided with briquetting 4, the bottom center of described briquetting 4 is extended the fixed leg 4.1 that is provided with a strip downwards, described fixed leg 4.1 is used for fixing spool 10, the outer rim of described fixed leg 4.1 bottoms is provided with O-ring seal I 11, be used to guarantee the sealing between fixed leg 4.1 and the spool 10, the center of the center of this fixed leg 4.1 and described briquetting 4 is provided with first venthole 4.2, one side of described briquetting 4 is provided with second venthole 4.3, and described first venthole 4.2 is connected with second venthole 4.3.

As Fig. 1, Fig. 2 and Fig. 3, described base plate 1.1 is provided with base 5, the top center of described base 5 has a up big and down small first step hole 5.2, described first step hole 5.2 comprises first hole 5.2.1 and the first hole 5.2.2 that gets out of a predicament or an embarrassing situation that tops bar, described first gets out of a predicament or an embarrassing situation is plugged with draft tube 7 in the 5.2.2 of hole, the top of described draft tube 7 is exposed to the first hole 5.2.2 that gets out of a predicament or an embarrassing situation, the outer rim of described draft tube 7 is provided with external thread, this draft tube 7 is fixing by set nut and base 5, one side of described base 5 offers air admission hole 5.1, described the air admission hole 5.1 and first hole 5.1.2 that gets out of a predicament or an embarrassing situation is connected, the inside of described draft tube 7 has a up big and down small second step hole 7.1, described second step hole 7.1 comprises second hole 7.1.1 and the second hole 7.1.2 that gets out of a predicament or an embarrassing situation that tops bar, described second tops bar is provided with a spring 8 in the 7.1.1 of hole, and there is a bead 9 on the top, upper end of described spring 8.

As Fig. 2 and Fig. 3, the below of described briquetting 4 is fixed with sealing bore 6, is provided with O-ring seal II 12 between the outer rim of the inwall of described sealing bore 6 and base 5, is used to guarantee that spool 10 has the testing environment of sealing.

As Fig. 3 and Fig. 4, earlier spool 10 is nested with on fixed leg 4.1 during the use of this spool air-tightness detection device, driving moving beam 1.3 with exhaust hood 3 moves down along guide pillar 2, when the set nut that is used for fixing draft tube 7 is run in the bottom of spool 10, bead 9 just in time can upwards withstand the detection hole of spool 10, moving just stop motion of beam 1.3.This moment, briquetting 4, sealing bore 6 and base 5 formed the surveyed area of a sealing, subsequently from air admission hole 5.1 bubbling airs, and second venthole 4.3 were inserted in the water by tracheae.If the sealing property of spool 10 is bad, air will be successively by air admission hole 5.1, first get out of a predicament or an embarrassing situation hole 5.2.2, second step hole 7.1, spool 10, first venthole 4.2 and second venthole 4.3, and with water that second venthole 4.3 links to each other in produce bubble; If the good seal performance of spool 10 then can not produce bubble in the water.

Claims (1)

1. spool air-tightness detection device, it is characterized in that: it comprises hold down gag (1), described hold down gag (1) comprises base plate (1.1), top board (1.2) and moving beam (1.3), be connected with some guide pillars (2) between described base plate (1.1) and the top board (1.2), described moving beam (1.3) is nested with on guide pillar (2), described top board (1.2) is provided with cylinder (3), and the piston rod of described cylinder (3) is connected with moving beam (1.3);
The bottom of described moving beam (1.3) is provided with briquetting (4), the bottom center of described briquetting (4) extension downwards is provided with a fixed leg (4.1), the outer rim of described fixed leg (4.1) bottom is provided with O-ring seal I (11), the center of center of this fixed leg (4.1) and described briquetting (4) is provided with first venthole (4.2), one side of described briquetting (4) is provided with second venthole (4.3), and described first venthole (4.2) is connected with second venthole (4.3);
Described base plate (1.1) is provided with base (5), the top center of described base (5) has a up big and down small first step hole (5.2), described first step hole (5.2) comprises first hole (5.2.2) of getting out of a predicament or an embarrassing situation, hole (5.2.1) and first of topping bar, described first gets out of a predicament or an embarrassing situation is plugged with draft tube (7) in the hole (5.2.2), the top of described draft tube (7) is exposed to first hole (5.2.2) of getting out of a predicament or an embarrassing situation, the outer rim of described draft tube (7) is provided with external thread, this draft tube (7) is fixing by set nut and base (5), one side of described base (5) offers air admission hole (5.1), described air admission hole (5.1) and first hole (5.1.2) of getting out of a predicament or an embarrassing situation is connected, the inside of described draft tube (7) has a up big and down small second step hole (7.1), described second step hole (7.1) comprises second hole (7.1.2) of getting out of a predicament or an embarrassing situation, hole (7.1.1) and second of topping bar, described second tops bar is provided with a spring (8) in the hole (7.1.1), and there is a bead (9) on the top, upper end of described spring (8);
The below of described briquetting (4) is fixed with sealing bore (6), and described sealing bore (6) is placed on the base (5), is provided with O-ring seal II (12) between the outer rim of the inwall of described sealing bore (6) and base (5).
CN 201010613558 2010-12-30 2010-12-30 Valve element airtightness testing device CN102128707B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010613558 CN102128707B (en) 2010-12-30 2010-12-30 Valve element airtightness testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010613558 CN102128707B (en) 2010-12-30 2010-12-30 Valve element airtightness testing device

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CN102128707A true CN102128707A (en) 2011-07-20
CN102128707B CN102128707B (en) 2013-05-01

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102636237A (en) * 2012-05-02 2012-08-15 中国计量学院 Valve cover tightness detection device for diaphragm gas meter by using negative pressure method
CN103233929A (en) * 2013-04-27 2013-08-07 甘肃蓝科石化高新装备股份有限公司 Four-column guiding type pressurizing device of hydrostatic testing machine
CN103712751A (en) * 2013-12-19 2014-04-09 怡得乐电子(杭州)有限公司 Adaptive sealing test device applicable to multi-product special-shaped cavities
CN104880284A (en) * 2014-02-28 2015-09-02 北京谊安医疗系统股份有限公司 Inner airtight testing device
CN104880281A (en) * 2014-02-28 2015-09-02 北京谊安医疗系统股份有限公司 Outer airtight testing device
CN104931212A (en) * 2015-07-02 2015-09-23 湖南菲尔斯特传感器有限公司 A urea sensor semi-finished product leakage detection device and a leakage detection method thereof
CN105043673A (en) * 2015-08-07 2015-11-11 广州飞机维修工程有限公司 Airplane starter rotor sealing performance testing tool
US9393653B2 (en) 2014-06-23 2016-07-19 Taizhou Federal Robot Technology Co., Ltd Processing system and method for a work piece surface
CN106124128A (en) * 2016-08-20 2016-11-16 无锡鹰贝精密轴承有限公司 Valve core gas tightness detecting device
CN106248317A (en) * 2016-08-20 2016-12-21 无锡鹰贝精密轴承有限公司 Spool air-tightness detection method
CN111940335A (en) * 2020-09-24 2020-11-17 台州市椒江蒙特智能装备有限公司 Factory valve detects and screening classification equipment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768305A (en) * 1971-02-24 1973-10-30 B Ivnitsky Installation for testing pressure tightness of check valve closing element
CN101261175A (en) * 2008-04-30 2008-09-10 齐齐哈尔轨道交通装备有限责任公司 Gas-tight test equipment accuracy detector and the detecting method
CN101799360A (en) * 2010-05-10 2010-08-11 玉环县清港液压机械厂 Valve element service life tester of single-handle double-control water nozzle
CN101846575A (en) * 2010-04-22 2010-09-29 安徽马东机械制造有限公司 Air tightness detecting device of valve
CN101865765A (en) * 2010-06-09 2010-10-20 长春工业大学 Automatic detection line of liquefied petroleum gas cylinder valve
CN201955204U (en) * 2010-12-30 2011-08-31 无锡鹰贝精密轴承有限公司 Valve core gas tightness detecting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768305A (en) * 1971-02-24 1973-10-30 B Ivnitsky Installation for testing pressure tightness of check valve closing element
CN101261175A (en) * 2008-04-30 2008-09-10 齐齐哈尔轨道交通装备有限责任公司 Gas-tight test equipment accuracy detector and the detecting method
CN101846575A (en) * 2010-04-22 2010-09-29 安徽马东机械制造有限公司 Air tightness detecting device of valve
CN101799360A (en) * 2010-05-10 2010-08-11 玉环县清港液压机械厂 Valve element service life tester of single-handle double-control water nozzle
CN101865765A (en) * 2010-06-09 2010-10-20 长春工业大学 Automatic detection line of liquefied petroleum gas cylinder valve
CN201955204U (en) * 2010-12-30 2011-08-31 无锡鹰贝精密轴承有限公司 Valve core gas tightness detecting device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102636237A (en) * 2012-05-02 2012-08-15 中国计量学院 Valve cover tightness detection device for diaphragm gas meter by using negative pressure method
CN103233929A (en) * 2013-04-27 2013-08-07 甘肃蓝科石化高新装备股份有限公司 Four-column guiding type pressurizing device of hydrostatic testing machine
CN103712751A (en) * 2013-12-19 2014-04-09 怡得乐电子(杭州)有限公司 Adaptive sealing test device applicable to multi-product special-shaped cavities
CN104880284A (en) * 2014-02-28 2015-09-02 北京谊安医疗系统股份有限公司 Inner airtight testing device
CN104880281A (en) * 2014-02-28 2015-09-02 北京谊安医疗系统股份有限公司 Outer airtight testing device
CN104880281B (en) * 2014-02-28 2019-10-29 北京谊安医疗系统股份有限公司 Outer airtight test device
CN104880284B (en) * 2014-02-28 2019-10-29 北京谊安医疗系统股份有限公司 Interior airtight test device
US9393653B2 (en) 2014-06-23 2016-07-19 Taizhou Federal Robot Technology Co., Ltd Processing system and method for a work piece surface
CN104931212A (en) * 2015-07-02 2015-09-23 湖南菲尔斯特传感器有限公司 A urea sensor semi-finished product leakage detection device and a leakage detection method thereof
CN105043673B (en) * 2015-08-07 2017-08-22 广州飞机维修工程有限公司 A kind of airplane starter rotor seal performance test frock
CN105043673A (en) * 2015-08-07 2015-11-11 广州飞机维修工程有限公司 Airplane starter rotor sealing performance testing tool
CN106124128A (en) * 2016-08-20 2016-11-16 无锡鹰贝精密轴承有限公司 Valve core gas tightness detecting device
CN106248317A (en) * 2016-08-20 2016-12-21 无锡鹰贝精密轴承有限公司 Spool air-tightness detection method
CN111940335A (en) * 2020-09-24 2020-11-17 台州市椒江蒙特智能装备有限公司 Factory valve detects and screening classification equipment

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Address after: 214416 Jiangsu city of Wuxi province Jiangyin city Zhu Tang Zhen Wen Lin Ring Road No. 11-1

Patentee after: Wuxi Yingbei Precision Hydraulic Co., Ltd

Address before: 214416 Jiangsu city of Wuxi province Jiangyin city Zhu Tang Zhen Wen Lin Ring Road No. 11-1

Patentee before: WUXI YINGBEI PRECISION BEARING Co.,Ltd.

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