WO2019090664A1 - 一种密封结构的密封性检测方法 - Google Patents

一种密封结构的密封性检测方法 Download PDF

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Publication number
WO2019090664A1
WO2019090664A1 PCT/CN2017/110393 CN2017110393W WO2019090664A1 WO 2019090664 A1 WO2019090664 A1 WO 2019090664A1 CN 2017110393 W CN2017110393 W CN 2017110393W WO 2019090664 A1 WO2019090664 A1 WO 2019090664A1
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sealing
sealing structure
gas
hole
base
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PCT/CN2017/110393
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English (en)
French (fr)
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吴加富
缪磊
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苏州富强科技有限公司
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Priority to US16/486,824 priority Critical patent/US11125643B2/en
Publication of WO2019090664A1 publication Critical patent/WO2019090664A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/022—Test plugs for closing off the end of a pipe
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3209—Details, e.g. container closure devices

Definitions

  • the invention relates to the field of sealing property detection, in particular to a sealing property detecting method for a sealing structure.
  • a base having a cavity or a through hole, wherein the cavity or the through hole is provided with a component, and in order to form a seal between the component and the base, a sealing layer is often disposed between the two for sealing.
  • a sealing layer is often disposed between the two for sealing.
  • the method is to perform the sealing test.
  • the gap between the component and the pedestal is reduced due to the pressure of the pressing, and the sealing of the two is improved after the gap becomes smaller, however, Products that cause actual poor sealing problems are missed, which greatly reduces the detection success rate and detection accuracy. In view of this, it is necessary to develop a sealing structure sealing method to solve the above problems.
  • an object of the present invention is to provide a sealing property detecting method for a sealing structure, which can improve the sealing accuracy of the sealing property and improve the success rate of the sealing property detection and avoid the missed detection. Or false detection.
  • a sealing property detecting method for a sealing structure comprising:
  • the base including a mounting through hole formed therein;
  • the gasket is open at the upper portion thereof to form an opening, the edge of the opening is integrally formed with a skirt extending outward, and a seal is formed between the gasket and the mounting through hole and between the skirt and the base. layer,
  • the sealing property detecting method of the sealing structure comprises the following steps:
  • a sealing ring is disposed directly under the base to form a closed ring to the lower outlet of the mounting through hole;
  • a sealing hole is arranged on the sealing ring, and the sealing ring communicates with the air source with the air pressure sensor through the ventilation hole;
  • the gas source starts to supply air or pump air into the sealing ring through the vent hole to form a positive pressure or negative pressure region between the sealing ring and the base;
  • the gas source is an industrial gas source or an air gas source.
  • the method further comprises: performing steady current adjustment on the air source.
  • the sealing layer is an adhesive layer filled with an adhesive.
  • the invention has the beneficial effects that the sealing manner of the opening is changed from the pressing type to the film attaching type, thereby avoiding the gap between the pad and the mounting through hole and the skirt and the base.
  • the gap between the seats is narrowed and thinned after being squeezed, thereby avoiding that the sealing property of the gap is improved due to narrowing and thinning, thereby avoiding the product that is in poor sealing property from being missed.
  • the detection success rate and detection accuracy are greatly improved.
  • FIG. 1 is a longitudinal cross-sectional view of a sealing structure in accordance with the present invention.
  • the sealing structure 1 comprises:
  • a susceptor 11 including a mounting through hole 111 formed therein;
  • the gasket 12 is open at its upper portion to be formed with an opening, and the edge of the opening is integrally formed with a skirt portion 123 extending outwardly, between the gasket 12 and the mounting through hole 1111, and between the skirt portion 123 and the base portion.
  • a sealing layer 14 is formed between the two.
  • the gasket 12 includes a side wall 122 and a bottom wall 121.
  • the side wall 122 integrally joins the bottom wall 121 on the outer circumference of the bottom wall 121 and from the bottom.
  • the outer circumference of the wall 121 extends upward, and the skirt portion 123 is coupled to the outer side of the top side of the side wall 122.
  • a plurality of components or components are mounted on the bottom wall 121, and the mounted components or components cause a plurality of upper and lower holes to be formed in the bottom wall 121, and between the gasket 12 and the mounting through hole 1111 and the skirt are to be detected.
  • the sealing between the portion 123 and the base 11 requires sealing and sealing of the opening.
  • the conventional method is to close the opening with a sealing ring and apply a certain pressure downward to form a seal, and apply pressure.
  • the pressure between the gasket 12 and the mounting through hole 1111 and the gap between the skirt portion 123 and the base 11 become smaller, and the gap is reduced to improve the sealing property of the slit region. This will lead to the missed detection of products with poor sealing performance, which greatly reduces the detection success rate and detection accuracy.
  • the present invention provides a sealing property detecting method for a sealing structure, and the sealing property detecting method of the sealing structure comprises the following steps:
  • a film 15 is attached to the liner 12 to form a closed surface
  • a sealing ring 15 is disposed directly under the susceptor 11 to form a closed opening to the lower outlet of the mounting through hole 111;
  • the sealing ring 15 is provided with a venting hole 151 through which the sealing ring 15 passes The air source of the air pressure sensor is connected;
  • the air source starts to supply air or pump air into the sealing ring through the vent hole 151 to form a positive pressure or negative pressure region between the sealing ring 15 and the base 11;
  • the gas source is an industrial gas source or an air gas source.
  • the air source is further regulated by the steady current.
  • the sealing layer 14 is an adhesive layer filled with an adhesive.
  • the invention will prevent the gap between the gasket 12 and the mounting through hole 111 and the gap between the skirt portion 123 and the base 11 from being squeezed after the sealing method of the opening is changed from the pressing type to the film attaching type. After being narrowed and thinned, the sealing property of the gap is prevented from being narrowed and thinned, and the product having the poor sealing property is prevented from being missed, thereby greatly improving the detection success rate and detecting. Accuracy to meet actual inspection needs.

Abstract

一种密封结构的密封性检测方法，包括如下步骤：S1、在衬垫（12）上贴附薄膜（13）以对敞口形成封闭；S2、在基座（11）的正下方设置密封圈（15）以对安装通孔（111）的下出口形成封闭；S3、密封圈（15）上设有通气孔（151），密封圈（15）通过该通气孔（151）与带有气压传感器的气源相连通；S4、气源通过通气孔（151）开始向密封圈（15）内供气或抽气以使得密封圈（15）与基座（11）之间形成正压或负压区域；S5、保持该气压状态一定时间，气压传感器在此区间内实时检测气体的流量；S6、将检测得到的气体流量与合格阈值范围进行比较；S7、根据检测结果对具有该密封结构的产品进行分拣；S8、撕除薄膜（13），检测完成。该方法在提高密封性检测精度的同时，还能够提高密封性检测的成功率，避免漏检或误检。

Description

一种密封结构的密封性检测方法 技术领域
本发明涉及密封性检测领域，特别涉及一种密封结构的密封性检测方法。
背景技术
设有腔体或者通孔的基座，所述腔体或者通孔中安装有零部件，为使所述零部件与基座之间形成密封，往往在两者之间设置密封层进行密封，为了检测两者结合后的密封性，通常采用在腔体或孔洞的一侧采用下压式的方法对所述零部件上的孔洞进行密封而在腔体或孔洞的另一侧抽负压的方式进行密封性检测，在传统检测方法中，由于下压的压力会使得所述零部件与基座之间的缝隙变小，缝隙变小后会使得两者的密封性得到提升，然而这就会导致实际存在密封性欠佳问题的产品被漏检，大大降低了检测成功率及检测精度，有鉴于此，实有必要开发一种密封结构的密封性检测方法，用以解决上述问题。
发明内容
针对现有技术中存在的不足之处，本发明的目的是提供一种密封结构的密封性检测方法，其在提高密封性检测精度的同时，还能够提高密封性检测的成功率，避免漏检或误检。
为了实现根据本发明的上述目的和其他优点，提供了一种密封结构的密封性检测方法，所述密封结构包括：
基座，该基座包括形成于其中的安装通孔；以及
衬垫，该衬垫布置在安装通孔中，
其中，衬垫在其上部敞开形成有敞口，所述敞口的边缘一体式地形成有向外侧延伸的裙部，衬垫与安装通孔之间及裙部与基座之间形成有密封层，
所述密封结构的密封性检测方法包括如下步骤：
S1、在衬垫上贴附薄膜以对所述敞口形成封闭；
S2、在基座的正下方设置密封圈以对安装通孔的下出口形成封闭；
S3、密封圈上设有通气孔，密封圈通过该通气孔与带有气压传感器的气源相连通；
S4、气源通过通气孔开始向密封圈内供气或抽气以使得密封圈与基座之间形成正压或负压区域；
S5、保持该气压状态一定时间，气压传感器在此区间内实时检测气体的流量；
S6、将检测得到的气体流量与合格阈值范围进行比较，当气体流量处于或者小于合格阈值范围时，表明密封结构的密封性符合设计要求；否则，表明密封结构的密封性不符合设计要求；
S7、根据检测结果对具有该密封结构的产品进行分拣；
S8、撕除薄膜，检测完成。
优选的是，所述步骤S1中，所述气源为工业气源或空气气源。
优选的是，所述步骤S3中，在所述气源开始抽气之前，还包括对所述气源进行稳流调节。
优选的是，密封层为由粘胶剂填充的粘胶层。
本发明与现有技术相比，其有益效果是：将对所述敞口的密封方式从下压式改为薄膜贴附式后，避免了衬垫与安装通孔之间及裙部与基座之间的缝隙受到挤压后变窄、变薄，从而避免了这部分缝隙的密封性由于变窄、变薄后得到提升，进而避免了实际存在密封性欠佳问题的产品被漏检，大大提高了检测成功率及检测精度。
附图说明
图1为根据本发明所述的密封结构的纵向剖视图。
具体实施方式
下面结合附图对本发明做进一步的详细说明，本发明的前述和其它目的、特征、方面和优点将变得更加明显，以令本领域技术人员参照说明书文字能够据以实施。在附图中，为清晰起见，可对形状和尺寸进行放大，并将在所有图中使用相同的附图标记来指示相同或相似的部件。在下列描述中，诸如 中心、厚度、高度、长度、前部、背部、后部、左边、右边、顶部、底部、上部、下部等用词为基于附图所示的方位或位置关系。特别地，“高度”相当于从顶部到底部的尺寸，“宽度”相当于从左边到右边的尺寸，“深度”相当于从前到后的尺寸。这些相对术语是为了说明方便起见并且通常并不旨在需要具体取向。涉及附接、联接等的术语(例如，“连接”和“附接”)是指这些结构通过中间结构彼此直接或间接固定或附接的关系、以及可动或刚性附接或关系，除非以其他方式明确地说明。
参照图1，密封结构1包括：
基座11，该基座11包括形成于其中的安装通孔111；以及
衬垫12，该衬垫12布置在安装通孔111中，
其中，衬垫12在其上部敞开形成有敞口，所述敞口的边缘一体式地形成有向外侧延伸的裙部123，衬垫12与安装通孔1111之间及裙部123与基座11之间形成有密封层14，在优选的实施方式中，衬垫12包括侧壁122及底壁121，侧壁122在底壁121的外周上一体式地结合该底壁121并从该底壁121的外周向上延伸，裙部123结合于侧壁122的顶部外侧。
通常在底壁121上安装有若干元器件或零部件，而安装的元器件或零部件会使得底壁121上形成若干贯穿其上下孔洞，要检测衬垫12与安装通孔1111之间及裙部123与基座11之间的密封性则需要对所述敞口进行封闭并密封，传统方法是用密封圈对该敞口进行封闭并向下施加一定的压力以形成密封，而施加压力的同时，由于下压的压力会使得衬垫12与安装通孔1111之间及裙部123与基座11之间的缝隙变小，缝隙变小后会使得该缝隙区域的密封性得到提升，然而这就会导致实际存在密封性欠佳问题的产品被漏检，大大降低了检测成功率及检测精度。
有鉴于此，本发明提出了一种密封结构的密封性检测方法，该密封结构的密封性检测方法包括如下步骤：
S1、在衬垫12上贴附薄膜15以对所述敞口形成封闭；
S2、在基座11的正下方设置密封圈15以对安装通孔111的下出口形成封闭；
S3、密封圈15上设有通气孔151，密封圈15通过该通气孔151与带有 气压传感器的气源相连通；
S4、气源通过通气孔151开始向密封圈内供气或抽气以使得密封圈15与基座11之间形成正压或负压区域；
S5、保持该气压状态一定时间，气压传感器在此区间内实时检测气体的流量；
S6、将检测得到的气体流量与合格阈值范围进行比较，当气体流量处于或者小于合格阈值范围时，表明密封结构的密封性符合设计要求；否则，表明密封结构的密封性不符合设计要求；
S7、根据检测结果对具有该密封结构的产品进行分拣；
S8、撕除薄膜15，检测完成。
优选的是，所述步骤S1中，所述气源为工业气源或空气气源。
优选的是，在所述气源开始抽气之前，还包括对所述气源进行稳流调节。
优选的是，密封层14为由粘胶剂填充的粘胶层。
本发明将对所述敞口的密封方式从下压式改为薄膜贴附式后，避免了衬垫12与安装通孔111之间及裙部123与基座11之间的缝隙受到挤压后变窄、变薄，从而避免了这部分缝隙的密封性由于变窄、变薄后得到提升，进而避免了实际存在密封性欠佳问题的产品被漏检，大大提高了检测成功率及检测精度，能够满足实际检测需求。
这里说明的设备数量和处理规模是用来简化本发明的说明的。对本发明的应用、修改和变化对本领域的技术人员来说是显而易见的。
尽管本发明的实施方案已公开如上，但其并不仅限于说明书和实施方式中所列运用，它完全可以被适用于各种适合本发明的领域，对于熟悉本领域的人员而言，可容易地实现另外的修改，因此在不背离权利要求及等同范围所限定的一般概念下，本发明并不限于特定的细节和这里示出与描述的图例。

Claims (4)

  1. 一种密封结构的密封性检测方法，所述密封结构(1)包括：
    基座(11)，该基座(11)包括形成于其中的安装通孔(111)；以及
    衬垫(12)，该衬垫(12)布置在安装通孔(111)中，
    其中，衬垫(12)在其上部敞开形成有敞口，所述敞口的边缘一体式地形成有向外侧延伸的裙部(123)，衬垫(12)与安装通孔(1111)之间及裙部(123)与基座(11)之间形成有密封层(14)，
    其特征在于，所述密封结构的密封性检测方法包括如下步骤：
    S1、在衬垫(12)上贴附薄膜(15)以对所述敞口形成封闭；
    S2、在基座(11)的正下方设置密封圈(15)以对安装通孔(111)的下出口形成封闭；
    S3、密封圈(15)上设有通气孔(151)，密封圈(15)通过该通气孔(151)与带有气压传感器的气源相连通；
    S4、气源通过通气孔(151)开始向密封圈内供气或抽气以使得密封圈(15)与基座(11)之间形成正压或负压区域；
    S5、保持该气压状态一定时间，气压传感器在此区间内实时检测气体的流量；
    S6、将检测得到的气体流量与合格阈值范围进行比较，当气体流量处于或者小于合格阈值范围时，表明密封结构的密封性符合设计要求；否则，表明密封结构的密封性不符合设计要求；
    S7、根据检测结果对具有该密封结构的产品进行分拣；
    S8、撕除薄膜(15)，检测完成。
  2. 如权利要求1所述的密封结构的密封性检测方法，其特征在于，所述步骤S1中，所述气源为工业气源或空气气源。
  3. 如权利要求1所述的密封结构的密封性检测方法，其特征在于，所述步骤S3中，在所述气源开始抽气之前，还包括对所述气源进行稳流调节。
  4. 如权利要求1所述的密封结构的密封性检测方法，其特征在于，密封层(14)为由粘胶剂填充的粘胶层。
PCT/CN2017/110393 2017-11-07 2017-11-10 一种密封结构的密封性检测方法 WO2019090664A1 (zh)

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CN111947851A (zh) * 2020-08-18 2020-11-17 濮阳市恒信橡塑有限公司 一种高压密封圈的检测装置
CN113340534A (zh) * 2021-07-02 2021-09-03 苏州富强科技有限公司 一种气密性检测方法
CN114935294A (zh) * 2022-05-13 2022-08-23 中国第一汽车股份有限公司 一种汽车排气系统中的催化器总成检测装置及检测方法
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