CN200962064Y - A two-purpose vacuum standard pipe interface - Google Patents

A two-purpose vacuum standard pipe interface Download PDF

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Publication number
CN200962064Y
CN200962064Y CN 200620138383 CN200620138383U CN200962064Y CN 200962064 Y CN200962064 Y CN 200962064Y CN 200620138383 CN200620138383 CN 200620138383 CN 200620138383 U CN200620138383 U CN 200620138383U CN 200962064 Y CN200962064 Y CN 200962064Y
Authority
CN
China
Prior art keywords
joint
pressure pad
vacuum
diameter
inner chamber
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
CN 200620138383
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Chinese (zh)
Inventor
李柯巍
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.)
Xian Aviation Power Co Ltd
Original Assignee
XI' AN AERO-ENGINE (GROUP) 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 XI' AN AERO-ENGINE (GROUP) Co Ltd filed Critical XI' AN AERO-ENGINE (GROUP) Co Ltd
Priority to CN 200620138383 priority Critical patent/CN200962064Y/en
Application granted granted Critical
Publication of CN200962064Y publication Critical patent/CN200962064Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model belongs to vacuum measuring technique, which relates to an improvement of a vacuum gauge tube interface. The utility model comprises a coupler 5, a sealing ring 4, a pressure pad 3 and a clamping band 6, which is characterized in that the connecting port of the coupler 5 is provided with a step inner chamber and a pyramidal face 7, the lower portion of the pressure pad 3 is inserted into the connecting port of the coupler 5, the sealing ring is positioned on the pyramidal face 7, and the pressure pad 3 is integrally connected with the coupler 5 through the clamping band 6. The present utility model simplifies the conversing interface form of vacuum quick-release flange (KF) and vacuum gauge tube connector of Phi 16, reduces encapsulation segment of interface conversion, decreases equipment leakage and increases working efficiency.

Description

A kind of dual-purpose vacuum is regulated interface
Technical field
The utility model belongs to the vacuum measurement technology, relates to the improvement to the vacuum gauge interface.
Background technology
Vacuum measuring instrument generally is made up of indicative control unit and vacuum gauge (survey sensor).When being used for vacuum experiment equipment or vacuum processing apparatus, indicative control unit places on the operating console, and vacuum gauge is installed in operating room, pipeline and the pumping hole place of equipment.The connector of equipment and vacuum gauge mainly contains the KF series and the φ 16mm vacuum gauge joint of pinching vacuum quick-release flange, and wherein KF25, KF16 and φ 16 vacuum gauge joints are the most commonly used.Pinching vacuum quick-release flange (KF type) is referring to Fig. 2, is that upper and lower end face by interface compresses " O " type cushion rubber and realizes butt-end packing; φ 16 vacuum gauge joints be by nut, pressure pad and joint with " O " type cushion rubber compress realize to radially with the sealing of end face, as shown in Figure 1.In daily a large amount of vacuum gauge calibration/test, the interface of vacuum standard equipment is generally φ 16 vacuum gauge joints or vacuum quick-release flange (KF25), therefore can frequently occur and the different situation of vacuum gauge interface pattern that is calibrated.And in the manufacturing of vacuum test, process equipment with when upgrading vacuum measuring instrument; regular meeting runs into equipment and the vacuum gauge interface of selecting for use or changes novel vacuum gauge and the inconsistent problem of the original interface pattern of equipment, makes to be restricted in the vacuum measuring instrument apolegamy.Solving the inconsistent problem of interface pattern at present is the method that adopts apolegamy or processing translation interface.As long as use translation interface, will increase sealing part, will increase the leakage of equipment to some extent, thereby influence indexs such as the final vacuum of equipment and voltage rise rate.Particularly use the translation interface of φ 16 vacuum gauge joints, leakage can be bigger, if measure higher vacuum tightness, the pressure gradient that exists between converting interface place and vacuum chamber can obtain inaccurate measurement result because seepage makes.In addition, φ 16 vacuum gauge joints are to adopt nut to screw mode to compress O type cushion rubber and realize sealing, and the therefore strength difference of at every turn tightening causes the difference of system's leak rate, causes under repeat condition, can not get identical vacuum environment.In sum, need a kind of interface that can satisfy above-mentioned two kinds of vacuum gauge joint connection requests simultaneously,, reduce leakage to increase work efficiency.
Summary of the invention
The purpose of this utility model is: propose a kind of can compatible φ 16 vacuum gauges and the dual-purpose vacuum of KF series vacuum gauge regulate interface, to simplify the translation interface pattern of vacuum quick-release flange (KF) and φ 16 vacuum gauge joints, thereby reduce the sealing part of interface conversion, reach KF flange and φ 16 joints can not increase the equipment leakage and increase work efficiency after switching purpose.
The technical solution of the utility model is: a kind of dual-purpose vacuum is regulated interface, comprise a joint 5 that has outside flange, an O-ring seal 4, a pressure pad 3 and a clip 6, clip 6 couples together joint 5 and pressure pad 3, the latus rectum Φ 3 of joint 5 matches with the external diameter of connected Φ 16mm vacuum gauge, it is characterized in that, is the step inner chamber that the second step shape inner chamber of Φ 2 is formed in the inside of the connectivity port of joint 5 by first step shape inner chamber that is Φ 1 by a diameter and diameter, Φ 1 is greater than Φ 2, diameter is between the latus rectum Φ 3 of the second step shape inner chamber of Φ 2 and joint 5 conical surface of receiving in 7 to be arranged, and the axial length of joint 5 is not less than 25mm; Said pressure pad 3 is annulus, the step axle that a reduced is arranged in its lower end, second step inner chamber Φ 2 clearance fit of the diameter of this step axle and inside, joint 5 connectivity port, first step inner chamber Φ 1 clearance fit of the diameter of pressure pad 3 lower ends and inside, joint 5 connectivity port, O-ring seal 4 is positioned on the conical surface 7 of inside, joint 5 connectivity port, the end face compresses seal 4 of the step axle of pressure pad 3 lower ends, its decrement is 15%~35%, there is a radially connection disk ring 8 of abduction pressure pad 3 upper ends, its external diameter is identical with the diameter of joint 5 outside flanges, and the cross section that connects disk ring 8 is identical with the cross section of joint 5 outside flanges; After the connectivity port of joint 5 was inserted in the lower end of pressure pad 3, the outside flange of terminal pad 8 and joint 5 connected as one by clip 6.
The utility model has the advantages that: dual-purpose vacuum of the present utility model is regulated interface, both can connect KF series vacuum quick-release flange, can connect φ 16 vacuum gauge joints again, carry out the KF flange when being connected with the conversion of φ 16 joints, do not increase sealing part, thereby can not increase the leakage of equipment.Use dual-purpose vacuum to regulate interface, can improve the interchangeability of the used vacuum measuring instrument of vacuum equipment, for upgrading vacuum measuring instrument or the novel evacuated condition that makes things convenient for that provides of regulating being provided.Particularly use this kind interface on vacuum standard equipment, for accounting for most KF series, the vacuum instrumentation of φ 16 interfaces, need not the conversion connection during calibration can be direct, more helps the acquisition of end vacuum, has improved the efficient of calibration greatly.
Description of drawings
Fig. 1 is existing φ 16 vacuum gauge joint design synoptic diagram.
Fig. 2 is existing KF series vacuum gauge joint design synoptic diagram.
Fig. 3 is a structural representation of the present utility model.
Synoptic diagram when Fig. 4 is to use the utility model to connect φ 16 vacuum gauges.
Synoptic diagram when Fig. 5 is to use the utility model to connect KF series vacuum gauge.
Embodiment
Below the utility model is described in further details.Referring to Fig. 3, dual-purpose vacuum of the present utility model is regulated interface, comprise a joint 5 that has outside flange, an O-ring seal 4, a pressure pad 3 and a clip 6, clip 6 couples together joint 5 and pressure pad 3, the latus rectum Φ 3 of joint 5 matches with the external diameter of connected Φ 16mm vacuum gauge, it is characterized in that, is the step inner chamber that the second step shape inner chamber of Φ 2 is formed in the inside of the connectivity port of joint 5 by first step shape inner chamber that is Φ 1 by a diameter and diameter, Φ 1 is greater than Φ 2, diameter is between the latus rectum Φ 3 of the second step shape inner chamber of Φ 2 and joint 5 conical surface of receiving in 7 to be arranged, and the axial length of joint 5 is not less than 25mm; Said pressure pad 3 is annulus, the step axle that a reduced is arranged in its lower end, second step inner chamber Φ 2 clearance fit of the diameter of this step axle and inside, joint 5 connectivity port, first step inner chamber Φ 1 clearance fit of the diameter of pressure pad 3 lower ends and inside, joint 5 connectivity port, O-ring seal 4 is positioned on the conical surface 7 of inside, joint 5 connectivity port, the end face compresses seal 4 of the step axle of pressure pad 3 lower ends, its decrement is 15%~35%, there is a radially connection disk ring 8 of abduction pressure pad 3 upper ends, its external diameter is identical with the diameter of joint 5 outside flanges, and the cross section that connects disk ring 8 is identical with the cross section of joint 5 outside flanges; After the connectivity port of joint 5 was inserted in the lower end of pressure pad 3, the outside flange of terminal pad 8 and joint 5 connected as one by clip 6.
For the ease of processing, said pressure pad 3 by the pressure pad body with constitute with the disk ring 8 that is connected that body separates.During use, connect disk ring 8 and be enclosed within on the pressure pad body.
Referring to Fig. 4, the synoptic diagram when this is to use the utility model to connect the vacuum gauge of φ 16., pressure pad 3, O-ring seal 4 are enclosed within on the neck of φ 16 vacuum gauges 1, neck are inserted in the latus rectum Φ 3 of joint 5, use clip 6 that joint 5 and pressure pad 3 are coupled together and get final product.
Referring to Fig. 5, the synoptic diagram when this is to use the utility model to connect KF series vacuum gauge.Do not need to use pressure pad 3 this moment, O-ring seal 4 is enclosed within on the support of KF series quick-release flange, this support is placed between the flange of the flange of joint 5 and KF series vacuum gauge, uses clip 6 that joint 5 and pressure pad 3 are coupled together and get final product.

Claims (2)

1, a kind of dual-purpose vacuum is regulated interface, comprise a joint [5] that has outside flange, an O-ring seal [4], a pressure pad [3] and a clip [6], clip [6] couples together joint [5] and pressure pad [3], the latus rectum Φ 3 of joint [5] matches with the external diameter of connected Φ 16mm vacuum gauge, it is characterized in that, is the step inner chamber that the second step shape inner chamber of Φ 2 is formed in the inside of the connectivity port of joint [5] by first step shape inner chamber that is Φ 1 by a diameter and diameter, Φ 1 is greater than Φ 2, diameter is between the latus rectum Φ 3 of the second step shape inner chamber of Φ 2 and joint [5] conical surface of receiving in [7] to be arranged, and the axial length of joint [5] is not less than 25mm; Said pressure pad [3] is an annulus, the step axle that a reduced is arranged in its lower end, second step inner chamber Φ 2 clearance fit of the diameter of this step axle and joint [5] inside, connectivity port, first step inner chamber Φ 1 clearance fit of the diameter of pressure pad [3] lower end and joint [5] inside, connectivity port, O-ring seal [4] is positioned on the conical surface [7] of joint [5] inside, connectivity port, the end face compresses seal [4] of the step axle of pressure pad [3] lower end, its decrement is 15%~35%, there is a radially connection disk ring [8] of abduction pressure pad [3] upper end, its external diameter is identical with the diameter of joint [5] outside flange, and the cross section that connects disk ring [8] is identical with the cross section of joint [5] outside flange; After the connectivity port of joint [5] was inserted in the lower end of pressure pad [3], the outside flange that connects disk ring [8] and joint [5] connected as one by clip [6].
2, dual-purpose vacuum according to claim 1 is regulated interface, it is characterized in that, said pressure pad [3] by the pressure pad body with constitute with the disk ring [8] that is connected that body separates.
CN 200620138383 2006-09-27 2006-09-27 A two-purpose vacuum standard pipe interface Expired - Lifetime CN200962064Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620138383 CN200962064Y (en) 2006-09-27 2006-09-27 A two-purpose vacuum standard pipe interface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620138383 CN200962064Y (en) 2006-09-27 2006-09-27 A two-purpose vacuum standard pipe interface

Publications (1)

Publication Number Publication Date
CN200962064Y true CN200962064Y (en) 2007-10-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620138383 Expired - Lifetime CN200962064Y (en) 2006-09-27 2006-09-27 A two-purpose vacuum standard pipe interface

Country Status (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101762419B (en) * 2009-10-14 2012-08-15 海洋王照明科技股份有限公司 Device and method for measuring compression amount of rubber sealing material
CN105756607A (en) * 2016-05-16 2016-07-13 徐秀 Well mouth blowout prevention pipe lengthening device
CN106950010A (en) * 2017-04-27 2017-07-14 沈阳飞机工业(集团)有限公司 A kind of vacuum gauge environmental control system
CN110887603A (en) * 2019-11-11 2020-03-17 合肥晶弘电器有限公司 Vacuum degree monitoring device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101762419B (en) * 2009-10-14 2012-08-15 海洋王照明科技股份有限公司 Device and method for measuring compression amount of rubber sealing material
CN105756607A (en) * 2016-05-16 2016-07-13 徐秀 Well mouth blowout prevention pipe lengthening device
CN106950010A (en) * 2017-04-27 2017-07-14 沈阳飞机工业(集团)有限公司 A kind of vacuum gauge environmental control system
CN110887603A (en) * 2019-11-11 2020-03-17 合肥晶弘电器有限公司 Vacuum degree monitoring device
CN110887603B (en) * 2019-11-11 2021-11-16 合肥晶弘电器有限公司 Vacuum degree monitoring device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: XI AN AERO-ENGINE CORPORATION LTD.

Free format text: FORMER OWNER: XI AN AEROPLANE ENGINE (GROUP) CO., LTD.

Effective date: 20090605

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20090605

Address after: Xu Jia Wan, Beijiao, Shaanxi, Xi'an Province, China: 710021

Patentee after: Xian Aviation Power Co., Ltd.

Address before: Xu Jia Wan, Beijiao, Shaanxi, Xi'an Province, China: 710021

Patentee before: Xi' an Aero-Engine (Group) Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20071017

EXPY Termination of patent right or utility model