WO2014067338A1 - 一种过滤轮胎气门芯 - Google Patents

一种过滤轮胎气门芯 Download PDF

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Publication number
WO2014067338A1
WO2014067338A1 PCT/CN2013/082654 CN2013082654W WO2014067338A1 WO 2014067338 A1 WO2014067338 A1 WO 2014067338A1 CN 2013082654 W CN2013082654 W CN 2013082654W WO 2014067338 A1 WO2014067338 A1 WO 2014067338A1
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WIPO (PCT)
Prior art keywords
core
filter
valve core
mount
tire valve
Prior art date
Application number
PCT/CN2013/082654
Other languages
English (en)
French (fr)
Inventor
张健儿
Original Assignee
杭州万通气门嘴有限公司
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
Priority claimed from CN 201220561170 external-priority patent/CN202901434U/zh
Priority claimed from CN201210421510.7A external-priority patent/CN102927329B/zh
Application filed by 杭州万通气门嘴有限公司 filed Critical 杭州万通气门嘴有限公司
Publication of WO2014067338A1 publication Critical patent/WO2014067338A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/20—Check valves specially designed for inflatable bodies, e.g. tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C29/00—Arrangements of tyre-inflating valves to tyres or rims; Accessories for tyre-inflating valves, not otherwise provided for
    • B60C29/002—Arrangements of tyre-inflating valves to tyres or rims; Accessories for tyre-inflating valves, not otherwise provided for characterised by particular features of the valve core

Definitions

  • This invention relates to tire valve cores, and more particularly to filter tire valve cores. Background technique
  • the air pressure in the tire will generate high temperature due to the extrusion and flow friction, which will affect the service life of the tire and even cause a puncture.
  • the current solution is to fill the tire with a chemical powdered coolant to keep it in the tire to cool the tire when the temperature rises, to extend the life of the tire and prevent puncture.
  • the ordinary tire valve core will enter the ordinary valve core sealing gasket with the airflow when the tire is charged and deflated, thereby causing the valve core to leak.
  • the conventional valve core with a filtering device comprises a core rod, a core cap, a core body, a core sealing ring, a core seat, a core seat gasket, a spring, a fixed connection of the core rod and the core seat, and a fixed connection of the core cap and the core body
  • the core seat gasket is disposed on the core seat.
  • the spring is disposed between the core seat and the filter component mount, and the seal between the filter component mount and the valve depends on the spring to install the filter component
  • the seat is lowered to the top, and the lower part of the valve is required to provide a conical surface that seals with the mount of the filter member.
  • the valve core with the filter device can only be used one by one to adapt to a specific type of valve of a specific length and a specific shape, and is different for different valve valves, and is not applicable to the curved valve. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a filter tire valve core, which filters the filter core and the gasket of the tire valve core when the tire is charged and deflated, prevents the chemical cooling powder from leaking, and enters the valve core gasket while Maintains the air tightness and charging and deflation functions of the common tire valve core; and more importantly, it is compatible and can be applied to different types of valves.
  • the components thereof include a core rod, a core cap, a core body, a core sealing ring, a core seat, a core seat gasket, a spring, a core rod and a core seat fixed connection, a core cap and a core body Fixed connection, the core seat gasket is disposed on the core seat;
  • the spring is disposed between the core rod and the core body, and the core rod is topped up and the gas passage between the core seat gasket and the lower end of the core body is sealed by the sealing gasket;
  • the valve core is further provided with a filtering device, which comprises a filter component mount, a filter component, and a filter component mount seal; the filter component mount is connected under the core seat, and the filter component mount An inlet and outlet passage is provided, and the filter member is located in the inlet and outlet passage; the filter member mount seal is disposed outside the filter member mount to seal the gap between the filter member mount and the side of the valve core cavity wall thereof.
  • the filter component mounting seat sealing ring is located below the upper inlet and outlet ports of the inlet and outlet gas passages and above the lower inlet and outlet ports;
  • the diameter of the filter component mounting seat seal ring in the free state is larger than the diameter of the throat of the tire valve core cavity, which is 4.9 mm or less, and the thickness is 0.35 mm or less and 0.5 mm or less; the filter component mount and the diameter of the core seat or The maximum lateral dimension is smaller than the diameter of the throat diameter of the valve core; the total length of the filter tire valve core is greater than or equal to 20 mm, and less than or equal to 21.5 mm.
  • the filter component mounting seat is a cylinder, and the filter component mounting seat has two symmetry on the side of the filter component mounting seat seal ring.
  • the vent is used as the upper inlet and outlet ports.
  • the outer surface of the filter member mount is provided with an annular groove for mounting a filter member mount seal, and the filter member mount seal is mounted in the annular groove and is riveted.
  • the filter component mounting seat is hollow, and the filter member is columnar.
  • the filter component mounting seat sealing ring is a rounded, sheet-shaped rubber elastic body.
  • the upper end of the filter component mounting seat is provided with a small diameter protruding ring, which is used for connecting the filter component mounting seat to the core seat.
  • the present invention uses a reversible sealing ring to seal the gap between the filter component mount and the valve hole wall on the side thereof, and the combination of the thickness and the diameter of the seal ring allows it to pass through the valve
  • the core cavity of the mouth can be turned over, and when it is assembled, it can be naturally stretched and sealed with the valve hole wall on the side of the filter component mount.
  • the filter tire valve core provided by the present invention can also be conveniently installed in the valve, but
  • the seal between the valve and the valve can be applied to different types of valves regardless of the length and lower shape of the valve core cavity, and can be applied to the elbow-shaped valve, thereby making the invention a universal type. Filter the tire valve core.
  • Figure 1 is a half cross-sectional view showing an embodiment of a filter tire valve core of the present invention
  • Figure 2 is a schematic view of the filter tire valve core gasket of the present invention when it is turned over through the valve core throat.
  • Fig. 3 is a schematic view showing the air flow path of the filter core valve top core opening and deflation when filtering the tire.
  • Figure 4 is an assembled view of the filter tire valve core and the No. 1 core cavity valve of the present invention.
  • Figure 5 is an assembled view of the filter tire valve core and the No. 3 core cavity valve.
  • Figure 6 is an assembled view of the filter tire valve core and the curved rod valve of the present invention. detailed description
  • the filter tire valve core of the invention comprises the core rod 1, the core cap 2, the core body 4, the core sealing ring 5, the core seat 7, the core seat gasket 6, the spring 3, the core rod 1 and the core seat 7 fixed Connecting, the core cap 2 and the core 4 are fixedly connected, and the core seat gasket 6 is disposed on the core seat 7;
  • the spring 3 is disposed between the core rod 1 and the core body 4, and the core rod 1 is topped up and the gas passage between the core seat gasket 6 and the lower end of the core body 4 is sealed by a gasket;
  • the valve core is further provided with a filtering device, which comprises a filter component mount 8, a filter component 10, and a filter component mount seal 9; the filter component mount 8 is connected below the core seat 7,
  • the filter member mount 8 is provided with an inlet and outlet passage 80, and the filter member 10 is disposed in the inlet and outlet passage 80;
  • the filter member mount seal 9 is disposed outside the filter member mount, and the filter member mount 8 and the seal member are sealed.
  • a gap between the side valve core cavity wall 101, the filter component mount seal 9 is located below the upper inlet and outlet port 81 of the inlet and outlet passage 80, and above the lower inlet and outlet port 82;
  • the diameter of the filter component mount seal 9 in the free state is greater than the diameter of the tire valve core cavity 102, 4.9 mm or less, and the thickness is 0.35 mm or less and 0.5 mm or less; the filter component mount and the diameter of the core seat or The maximum lateral dimension is smaller than the valve core cavity throat; the total length of the filter tire valve core is greater than or equal to 20mm, less than or equal to 21.5mm, and can be applied to the valve and curved rod valves of various lengths of core cavities currently used.
  • the filter member mount 8 is a cylinder. Above the filter member mount seal 9, two symmetrical vent holes are provided on the side of the filter member mount 8 as the upper inlet and outlet ports 81.
  • the outer surface of the filter member mount 8 is provided with an annular groove 83 for mounting the filter member mount seal 9, and the filter member mount seal 9 is mounted in the annular groove 83 and is riveted.
  • the filter component mounting seat is hollow, and the filter member is columnar.
  • the filter member mount seal 9 is a rubber elastomer having a peripheral fillet 91 and a sheet-like ring shape (i.e., a cross-sectional body having a rectangular shape) to improve the turnover performance and the sealing performance.
  • the filter member mounting seat 8 is provided with a small diameter protruding ring 84 at the upper end thereof, and the ring 84 is used for the filter member mounting base 8 to be connected to the core base 4.
  • arrow lines and B respectively filter the airflow direction of the tire valve core top core opening and deflation.
  • Figure 4 shows the shape of a valve, which is currently used in the No. 1 core cavity valve 200, the lower part of the core cavity of the valve has a conical surface 201, the conventional filter tire valve core can be applied to such a valve mouth Similarly, the valve core of the present invention can be installed in the valve through the core cavity throat portion 102 of the valve, and the seal between the valve and the valve is independent of the length of the valve core cavity and the lower shape. .
  • Figure 5 shows the shape of a valve, which is the No. 3 core cavity valve 300 currently in use
  • the lower part of the core cavity of the valve does not have a conical surface, and the conventional filter tire valve core cannot be applied to such a valve; however, the valve core of the present invention can be installed not only in the valve through the core cavity neck portion 102 of the valve.
  • the valve core of the present invention can be used for the valve to function as a filter.
  • Figure 6 shows the shape of a valve, which is the curved valve valve 400 currently in use, the lower portion of the core cavity of the valve is curved, and the length of the core cavity is shorter than the core cavity of the No. 1 core cavity valve 200
  • the length, the filter valve core suitable for the No. 1 core cavity valve 200 cannot be used for the curved valve valve; however, the valve core of the present invention can be installed not only in the valve through the core cavity throat portion 102 of the valve, Moreover, since the seal between the present invention and the valve does not depend on the length and the lower shape of the valve core cavity, the valve core of the present invention can be used for the valve to function as a filter.
  • the filter member mount seal 9 of the present invention can be turned over when it is blocked by the throat portion, although it has a larger diameter than the valve core throat when it passes through the valve core throat 201. And smoothly pass; refer to Figures 3, 4, 5, 6, when the valve core can naturally extend through the throat and seal the gap between the filter component mount and the side of the valve core cavity wall, thereby making the valve core It can be installed smoothly and can be independent of the shape and length of the lower part of the valve core cavity.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Safety Valves (AREA)

Abstract

一种过滤轮胎气门芯，其弹簧（3）设置在芯杆（1）和芯体（4）之间，所述气门芯还设有过滤装置，所述过滤装置包括过滤部件安装座（8）、过滤部件（10）、过滤部件安装座密封圈（9）；过滤部件安装座密封圈（9）的直径大于轮胎气门嘴芯腔喉径（102）的直径，小于等于4.9mm，厚度大于等于0.35mm小于等于0.5mm；过滤部件安装座（8）以及芯座（7）的直径或最大横向尺寸小于气门嘴芯腔喉径（102）的直径；过滤轮胎气门芯的总长大于等于20mm，小于等于21.5mm。本发明能不依赖于气门嘴芯腔的长度、下部形状密封，能够适用于不同型号的气门嘴，且能适用于弯管形状的气门嘴。

Description

一种过滤轮胎气门芯 技术领域
本发明涉及轮胎气门芯， 尤其涉及过滤轮胎气门芯。 背景技术
汽车在高速行驶时，轮胎内气压因挤压和流动摩擦会产生高温， 影响轮胎使 用寿命甚至造成爆胎。现行的解决方案是在轮胎中充入化学粉末状冷却剂使之留 存在轮胎内在轮胎温度升高时起到冷却作用， 以延长轮胎寿命、 防止爆胎。但普 通的轮胎气门芯在轮胎充、放气时化学粉末状冷却剂会随气流进入普通气门芯密 封垫， 从而造成气门芯漏气。
以往的具有过滤装置的气门芯， 其包括芯杆、 芯帽、 芯体、 芯体密封圈、 芯 座、 芯座密封垫、 弹簧， 芯杆和芯座固定连接， 芯帽和芯体固定连接， 芯座密封 垫设置在芯座上。为了使具有过滤装置的气门芯能够安装在气门嘴中并密封， 弹 簧设置在芯座和过滤部件安装座之间，过滤部件安装座与气门嘴之间的密封依靠 所述弹簧将过滤部件的安装座向下顶来实现，气门嘴的下部为此需要设置与过滤 部件的安装座之间进行密封的圆锥面。这样， 带过滤装置的气门芯只能一对一地 适应特定长度、 特定形状的专门型号的气门嘴而不同通用于不同气门嘴， 并且， 对于弯杆气门嘴则还无法适用。 发明内容
本发明所要解决的技术问题是提供一种过滤轮胎气门芯，在轮胎充、放气时 过滤轮胎气门芯的滤芯和密封垫阻止化学冷却粉泄漏，进入气门芯密封垫， 同时 保持普通轮胎气门芯的密气和充、放气功能； 并更重要地是具有通配性， 能够适 用于不同型号的气门嘴。 为此， 本发明采用以下技术方案： 其构件包括芯杆、 芯 帽、 芯体、 芯体密封圈、 芯座、 芯座密封垫、 弹簧， 芯杆和芯座固定连接， 芯帽 和芯体固定连接， 芯座密封垫设置在芯座上； 其特征在于
所述弹簧设置在芯杆和芯体之间，将芯杆向上顶并使芯座密封垫和芯体下端 之间的气体通道被密封垫密封；
所述气门芯还设有过滤装置，所述过滤装置包括过滤部件安装座、过滤部件、 过滤部件安装座密封圈； 所述过滤部件安装座连接在芯座的下方， 所述过滤部件 安装座中设有进出气通道， 过滤部件处在进出气通道中； 过滤部件安装座密封圈 设置在过滤部件安装座的外侧，密封过滤部件安装座和其侧面的气门嘴芯腔孔壁 之间的空隙， 所述过滤部件安装座密封圈处在进出气通道的上部进出气口之下、 下部进出气口之上；
所述过滤部件安装座密封圈在自由状态下的直径大于轮胎气门嘴芯腔喉径 的直径， 小于等于 4.9mm， 厚度大于等于 0.35mm小于等于 0.5mm; 过滤部件安 装座以及芯座的直径或最大横向尺寸小于气门嘴芯腔喉径的直径；过滤轮胎气门 芯的总长大于等于 20mm， 小于等于 21.5mm。
在采用上述技术方案的基础上， 本发明还可采用以下进一步的技术方案： 所述过滤部件安装座为圆柱体，在过滤部件安装座密封圈的上方， 过滤部件 安装座侧面设有 2个对称的通气孔作为所述上部进出气口。
所述过滤部件安装座外表面设有用于安装过滤部件安装座密封圈的环形槽， 所述过滤部件安装座密封圈被安装在环形槽中并被铆紧。
所述过滤部件安装座中空， 过滤部件为柱状。
所述过滤部件安装座密封圈为周边圆角的、 片型圈状的橡胶弹性体。
所述过滤部件安装座上端设有一段直径较小的凸出圆环，此圆环用于过滤部 件安装座与芯座连接。 由于采用本发明的技术方案，本发明采用可翻转的密封圈密封过滤部件安装 座和其侧面的气门嘴孔壁之间的间隙，该密封圈的厚度和直径之间的组合使其在 通过气门嘴芯腔喉颈时能翻转，装配到位后自然伸张与过滤部件安装座侧面的气 门嘴孔壁密封， 由此， 本发明所提供的过滤轮胎气门芯同样能够方便地安装在气 门嘴中， 但其与气门嘴之间的密封却能不依赖于气门嘴芯腔的长度、 下部形状， 能够适用于不同型号的气门嘴， 且能适用于弯管形状的气门嘴， 从而使本发明成 为通用型的过滤轮胎气门芯。 附图说明
图 1为本发明过滤轮胎气门芯实施例的半剖图
图 2 为本发明过滤轮胎气门芯密封垫通过气门嘴芯腔喉颈翻转时的示意 图。
图 3为本发明过滤轮胎气门芯顶开芯杆充、 放气时的气流路线示意图。 图 4为本发明过滤轮胎气门芯与 1号芯腔气门嘴的装配图。
图 5为过滤轮胎气门芯与 3号芯腔气门嘴的装配图。
图 6为本发明过滤轮胎气门芯与弯杆气门嘴的装配图。 具体实施方式
参照附图。 本发明的过滤轮胎气门芯， 其构件包括芯杆 1、 芯帽 2、 芯体 4、 芯体密封圈 5、 芯座 7、 芯座密封垫 6、 弹簧 3， 芯杆 1和芯座 7固定连接， 芯帽 2和芯体 4固定连接， 芯座密封垫 6设置在芯座 7上；
所述弹簧 3设置在芯杆 1和芯体 4之间， 将芯杆 1向上顶并使芯座密封垫 6 和芯体 4下端之间的气体通道被密封垫密封；
所述气门芯还设有过滤装置， 所述过滤装置包括过滤部件安装座 8、 过滤部 件 10、 过滤部件安装座密封圈 9; 所述过滤部件安装座 8连接在芯座 7的下方， 所述过滤部件安装座 8中设有进出气通道 80， 过滤部件 10处在进出气通道 80 中； 过滤部件安装座密封圈 9设置在过滤部件安装座的外侧， 密封过滤部件安装 座 8和其侧面的气门嘴芯腔孔壁 101之间的空隙， 所述过滤部件安装座密封圈 9 处在进出气通道 80的上部进出气口 81之下、 下部进出气口 82之上；
所述过滤部件安装座密封圈 9 在自由状态下的直径大于轮胎气门嘴芯腔喉 径 102， 小于等于 4.9mm， 厚度大于等于 0.35mm小于等于 0.5mm; 过滤部件安 装座以及芯座的直径或最大横向尺寸小于气门嘴芯腔喉径；过滤轮胎气门芯的总 长大于等于 20mm， 小于等于 21.5mm， 能够应用于目前使用的各种不同长度芯 腔的气门嘴和弯杆气门嘴。
所述过滤部件安装座 8为圆柱体，在过滤部件安装座密封圈 9的上方， 过滤 部件安装座 8侧面设有 2个对称的通气孔作为所述上部进出气口 81。
所述过滤部件安装座 8外表面设有用于安装过滤部件安装座密封圈 9的环形 槽 83， 所述过滤部件安装座密封圈 9被安装在环形槽 83中并被铆紧。
所述过滤部件安装座中空， 过滤部件为柱状。如图所示， 所述过滤部件安装 座密封圈 9为周边圆角 91的、 片型圈状 （也即横截面的主体形状呈矩形） 的橡 胶弹性体， 以便提高翻转性能和密封性能。
所述过滤部件安装座 8上端设有一段直径较小的凸出圆环 84， 此圆环 84用 于过滤部件安装座 8与芯座 4连接。
图 3中， 箭头线路 、 B分别为过滤轮胎气门芯顶开芯杆充、 放气时的气流 路线方向。
图 4显示了一种气门嘴的形状， 其为目前在使用的 1号芯腔气门嘴 200， 该 气门嘴的芯腔下部具有圆锥面 201， 以往的过滤轮胎气门芯能适用于这种气门 嘴； 同样地， 本发明的气门芯能够通过该气门嘴的芯腔喉颈 102部位而安装在气 门嘴中， 并且， 其与气门嘴之间的密封不依赖于气门嘴芯腔的长度、 下部形状。
图 5显示了一种气门嘴的形状， 其为目前在使用的 3号芯腔气门嘴 300， 该 气门嘴的芯腔下部不具有圆锥面， 以往的过滤轮胎气门芯不能适用于这种气门 嘴；但本发明的气门芯不仅能够通过该气门嘴的芯腔喉颈 102部位而安装在气门 嘴中， 并且， 由于本发明与气门嘴之间的密封不依赖于气门嘴芯腔的长度、 下部 形状， 因此本发明的气门芯能够用于该种气门嘴， 起到过滤作用。
图 6显示了一种气门嘴的形状， 其为目前在使用的弯杆气门嘴 400， 该气门 嘴的芯腔下部呈弯形， 且芯腔长度短于 1号芯腔气门嘴 200的芯腔长度， 适用于 1号芯腔气门嘴 200的过滤气门芯不能使用于该弯杆气门嘴； 但本发明的气门芯 不仅能够通过该气门嘴的芯腔喉颈 102部位而安装在气门嘴中， 并且， 由于本发 明与气门嘴之间的密封不依赖于气门嘴芯腔的长度、下部形状， 因此本发明的气 门芯能够用于该种气门嘴， 起到过滤作用。 参照图 2， 它显示了本发明的过滤部件安装座密封圈 9通过气门嘴芯腔喉颈 102时， 尽管其直径大于气门嘴芯腔喉颈， 但在被喉径部位所阻挡时其能够翻转 而顺利通过； 参照图 3、 4、 5、 6， 当气门芯通过喉颈后能自然伸张而密封过滤 部件安装座和其侧面的气门嘴芯腔孔壁之间的空隙，从而使得气门芯既能够顺利 安装又能够不依赖于气门嘴芯腔的下部形状和长度。

Claims

权利要求书
1. 一种过滤轮胎气门芯， 其构件包括芯杆、 芯帽、 芯体、 芯体密封圈、 芯 座、 芯座密封垫、 弹簧， 芯杆和芯座固定连接， 芯帽和芯体固定连接， 芯座密封 垫设置在芯座上； 其特征在于
所述弹簧设置在芯杆和芯体之间，将芯杆向上顶并使芯座密封垫和芯体下端 之间的气体通道被密封垫密封；
所述气门芯还设有过滤装置，所述过滤装置包括过滤部件安装座、过滤部件、 过滤部件安装座密封圈； 所述过滤部件安装座连接在芯座的下方， 所述过滤部件 安装座中设有进出气通道， 过滤部件处在进出气通道中； 过滤部件安装座密封圈 设置在过滤部件安装座的外侧，密封过滤部件安装座和其侧面的气门嘴芯腔孔壁 之间的空隙， 所述过滤部件安装座密封圈处在进出气通道的上部进出气口之下、 下部进出气口之上；
所述过滤部件安装座密封圈在自由状态下的直径大于轮胎气门嘴芯腔喉径 的直径， 小于等于 4.9mm， 厚度大于等于 0.35mm小于等于 0.5mm; 过滤部件安 装座以及芯座的直径或最大横向尺寸小于气门嘴芯腔喉径的直径；过滤轮胎气门 芯的总长大于等于 20mm， 小于等于 21.5mm。
2. 如权利要求 1所述的一种过滤轮胎气门芯， 其特征在于过滤部件安装座 为圆柱体，在过滤部件安装座密封圈的上方， 过滤部件安装座侧面设有 2个对称 的通气孔作为所述上部进出气口。
3. 如权利要求 1 所述的一种过滤轮胎气门芯， 其特征在于过滤部件安装座 外表面设有用于安装过滤部件安装座密封圈的环形槽，所述过滤部件安装座密封 圈被安装在环形槽中并被铆紧。
4. 如权利要求 1 所述的一种过滤轮胎气门芯， 其特征在于所述过滤部件安 装座中空， 过滤部件为柱状。
5. 如权利要求 1 所述的一种过滤轮胎气门芯， 其特征在于所述过滤部件安 装座密封圈为周边圆角的、 片型圈状的橡胶弹性体。
6. 如权利要求 1 所述的一种过滤轮胎气门芯， 其特征在于过滤部件安装座 上端设有一段直径较小的凸出圆环， 此圆环用于过滤部件安装座与芯座连接。
PCT/CN2013/082654 2012-10-29 2013-08-30 一种过滤轮胎气门芯 WO2014067338A1 (zh)

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US4103282A (en) * 1975-11-03 1978-07-25 Safety Research & Engineering Corporation Acoustical tire pressure valve
CN2227773Y (zh) * 1995-06-12 1996-05-22 尤富 不用小橡皮管的自行车气门嘴
CN2332596Y (zh) * 1998-05-29 1999-08-11 衣奎甲 一种充气塞
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