WO2020248312A1 - 一种多功能外接气门嘴和气门嘴的加载装置安装方法 - Google Patents

一种多功能外接气门嘴和气门嘴的加载装置安装方法 Download PDF

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Publication number
WO2020248312A1
WO2020248312A1 PCT/CN2019/094865 CN2019094865W WO2020248312A1 WO 2020248312 A1 WO2020248312 A1 WO 2020248312A1 CN 2019094865 W CN2019094865 W CN 2019094865W WO 2020248312 A1 WO2020248312 A1 WO 2020248312A1
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WIPO (PCT)
Prior art keywords
core
valve
main body
sealing
cavity
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Application number
PCT/CN2019/094865
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English (en)
French (fr)
Inventor
张健儿
朱保尔
Original Assignee
万通智控科技股份有限公司
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Application filed by 万通智控科技股份有限公司 filed Critical 万通智控科技股份有限公司
Priority to EP19932997.0A priority Critical patent/EP3984787A4/en
Priority to US17/618,304 priority patent/US11518203B2/en
Publication of WO2020248312A1 publication Critical patent/WO2020248312A1/zh

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Classifications

    • 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
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0491—Constructional details of means for attaching the control device
    • B60C23/0496—Valve stem attachments positioned outside of the tyre chamber
    • 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
    • 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
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • 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
    • B60C29/005—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 stem
    • 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
    • B60C29/06—Accessories for tyre-inflating valves, e.g. housings, guards, covers for valve caps, locks, not otherwise provided for
    • 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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
    • 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
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/06—Devices, e.g. valves, for venting or aerating enclosures for aerating only
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
    • F16L15/008—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with sealing rings
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3584—Inflatable article [e.g., tire filling chuck and/or stem]
    • Y10T137/3724—With coupling means

Definitions

  • the invention relates to the field of valves.
  • Automobiles especially commercial vehicles often load the original tire valve with a tire pressure gauge (Figure 1), a sensor to monitor tire pressure (Figure 2), and a cap-type external sensor (Figure 3). , Tire automatic air supplement device (Figure 4), inflation extension tube (Figure 5), etc.
  • these loading devices are equipped with welded external valves, or (as shown in Figures 3 to 5) directly installed on the tire valve mouth. The external valve is directly connected to the original tire valve.
  • A1 represents loaded functional devices, such as barometers, sensors, etc.
  • A2 represents the valve core in the external valve nozzle
  • A3 is the welding part
  • A4 is the rubber built into the external loading part Flat washer
  • A5 is the built-in ejector rod of the external loading part.
  • connection between the external valve and the original tire valve is to use the ejector rod A5 of the external part to push the valve core of the original tire valve (Figure 6), so that the tire air source can pass into the loading part, which will be obvious Failure ( Figure 6):
  • Figure 6 First, the main sealing function of the cone B1 of the original tire valve core cavity is abandoned, and the valve nozzle is sealed with the rubber flat gasket A4 built in the external loading part.
  • the PTFE pressure-resistant sealing ring of the valve core is combined with the conical surface provided in the valve core cavity to achieve effective sealing to prevent tire pressure leakage. The above-mentioned only depends on the valve mouth to seal the valve.
  • the shape and roughness of the mouth and the permanent compression deformation of the rubber flat pad can easily cause chronic tire pressure leakage.
  • the spring in the valve core has been in a state of extreme compression for a long time, and its yielding deformation makes the valve core check valve function ineffective.
  • valve cores are all in the normally open state after the above loading parts are connected to the valve (the defined sealing cone sealing function of the valve is abandoned). This causes defects such as failure of the valve sealing function and inconvenient operation.
  • the external valve is currently one item for one use, with a single loading function, inconvenient charging and discharging, and poor applicability.
  • the connection is mostly welded, the processing technology is complicated and the reliability is poor.
  • the first technical problem to be solved by the present invention is to provide a multifunctional external valve, which can avoid the problem of the previous external valve and effectively prevent tire pressure leakage.
  • the present invention adopts the following technical solutions:
  • a multifunctional external valve comprising a valve body, characterized in that the valve body is provided with a three-way penetrating main body, the main body is provided with an axial middle hole and a middle side connecting portion, and passing through the side connecting portion Through the main body from the side; the side connecting portion is used to connect the loading device;
  • a valve core is arranged in the axial center hole, and a valve core body is arranged in the valve core;
  • the main body has a cavity in front of the axial center hole, and the cavity is provided with internal threads for connecting with the original tire valve;
  • the front part of the core body is provided with an outer cone surface, the front part of the core body including the outer cone surface protrudes at the front end of the main body cavity, and the core cone sealing rubber tube is installed on the outer cone surface of the core body for the core body and tire valve
  • the tapered hole sealing surface of the inner core cavity is sealed, and the core body is provided with an axial through hole;
  • the end of the main body is processed and shaped according to the core cavity and thread size of the valve and the valve core is installed.
  • the present invention may also adopt the following further technical solutions, or apply a combination of these further technical solutions:
  • the side connecting portion is a connecting hole or a threaded connecting column, the opening of the connecting hole is provided with a sealing ring receiving groove, and the threaded connecting column is provided with a through hole to penetrate the axial middle hole from the side.
  • the main body cavity includes an inner cylindrical part; the valve core body is installed in the core seat, the core seat is installed in the inner cylindrical position of the main body cavity by interference fit, and the core body is installed in the core seat.
  • the external valve is provided with a core sealing ring, and the core sealing ring is installed in the core sealing ring clamping groove to realize the sealing of the core tail.
  • the rear part of the core body is provided with a main cylinder and a clamping part, which are used to cooperate with the core seat to fix the core body on the main body.
  • the front part of the main cylinder is provided with a transition section, which forms a sealing ring after the core body is assembled.
  • the core seat is provided with an inner cylindrical surface, and the inner cylindrical surface and the main cylinder of the core constitute a mutual rotation clearance fit; the outer cone of the core is provided at the front end of the transition section.
  • the front end of the outer cone surface of the core is provided with a smallest cylindrical end.
  • the outer cone formed by the outer cone surface of the core has a small diameter end and a large diameter end, and the large diameter end of the outer cone has an annular groove.
  • the "O" seal ring is installed at the step position of the front end of the inner cylinder in the main body cavity to realize the secondary sealing of the original tire valve mouth and the external valve; after the core seat is installed, its front end is basically the same as the The steps are flush.
  • Another technical problem to be solved by the present invention is to provide a method for installing a valve loading device.
  • the present invention adopts the following technical solutions:
  • a method for installing a valve loading device which is characterized in that the valve core of the original tire valve is removed, and the original tire valve is connected to the internal thread of the cavity of any one of the above-mentioned multifunctional external valve using its external thread ,
  • the core body utilizes the length of the transition section, so that the front end of the core body and the part where the core cone sealing rubber tube is set can be inserted into the original tire valve nozzle where the valve core is originally set, and the core cone sealing rubber tube can be attached to The tapered hole sealing surface of the valve core cavity; the prototype sealing effect of the external valve and the original tire valve is realized.
  • the loading device includes a tire pressure gauge, a sensor for monitoring the tire pressure, a cap-type external sensor, an automatic tire air supplement device, and an inflation extension tube.
  • Automobile tires (and rims) valves are accessories installed according to standards, and their functions are to inflate (or liquid), deflate and seal the tires.
  • the original tire valve is loaded with an external valve for carrying such as barometer, monitoring tire pressure and temperature sensor, tire automatic air filling device, inflation extension tube, etc., in order to increase the convenience of inflating and deflating, maintaining tire pressure, monitoring tire pressure, Temperature and other functions.
  • the external valve of the present invention can use the end core component to meet the sealing and self-sealing of the external valve to the sealing cone of the original valve core cavity, and effectively prevent tire pressure leakage.
  • the multifunctional external three-way valve nozzle of the present invention can be equipped with different connectors, barometers, sensors, automatic air supplement devices and other functional parts, fully realize the functional diversity, and the two-way interface is convenient for gas (or liquid)
  • the charging and discharging from two directions can make the loading structure closer to the axis of the valve, and improve the dynamic balance performance.
  • Figures 1 to 5 are cross-sectional views of existing external valves loaded with devices with different functions.
  • Fig. 6 is a schematic diagram of the connection between the existing external valve and the original tire valve.
  • Figure 7 is a cross-sectional view of Embodiment 1 of the present invention.
  • Figure 8 is a cross-sectional view of Embodiment 2 of the present invention.
  • Fig. 9 is a schematic diagram of a core of Example 1 of the present invention.
  • Figure 10 is an exploded view of Embodiment 2 of the present invention.
  • Figure 11 is a schematic diagram of the connection between Embodiment 2 of the present invention and the original tire valve.
  • Figure 12 is a cross-sectional view of Embodiment 3 of the present invention.
  • Figure 13 is a cross-sectional view of Embodiment 4 of the present invention.
  • Embodiment 1 referring to FIGS. 7 and 9, and also referring to FIGS. 10 and 11.
  • the external valve provided by this embodiment includes a three-way penetrating main body 1, and the side of the main body 1 is provided with a connecting hole 11 with a metric thread (or NPT sealing pipe thread) and a sealing ring pocket 12 (for connecting the carrying body),
  • the sealing ring containing groove 12 is located at the opening of the connecting hole 11, and the depth of the groove is 1 to 1.5 mm.
  • the connecting hole 11 is provided in the middle of the main body 1, and the wall thickness of the main body 1 corresponding to the connecting hole 11 is greater than the wall thickness of the main body at the cavity 13 described below and greater than the wall thickness of the main body at the valve core 200 described below.
  • the inner diameter of the main body 1 at the position corresponding to the connecting hole 11 is smaller than the inner diameter of the cavity 13 described below.
  • the front end of the main body 1 is provided with a cavity 13, and an 8V1 internal thread 14 is provided in the cavity 13 for connection with the original tire valve 100.
  • the internal thread 14 is threaded with the external thread 101 of the original tire valve 100.
  • the front end of the external valve is provided with a valve core 3, the core 3 is installed in the core seat 4, and the core sealing ring 5 is installed in the core sealing ring groove 31 to realize the sealing of the tail of the core 3.
  • the core The sealing ring groove 31 is provided on the side surface of the core 3, and the core sealing ring 5 is located between the core 3 and the core seat 4.
  • the core 3 is provided with a main cylinder 37 with a diameter of 4.45 to 0.03 mm.
  • the rear part of the main cylinder 37 is provided with a clamping part 39, which is used to cooperate with the core holder 4 to fix the core body 3 on the main body 1.
  • the front part of the main cylinder 37 is provided with a transition section 38 with a diameter of 3.7mm. After the core 3 is assembled, the section 38 forms a mounting channel 17 for the sealing ring 7 described below.
  • the core base 4 is provided with an inner cylindrical surface 41 of 4.5 ⁇ 0.03, and the inner cylindrical surface 41 and the main cylinder 37 of the core 3 form a mutual rotation clearance fit.
  • an outer cone of the core is provided at the front end of the transition section 33.
  • the core holder 4 is installed at the position of the inner cylinder 16 of the main body cavity 13 with an interference fit.
  • the inner cylinder 16 has a diameter of 6.9-0.03mm.
  • the front part of the core 3 including the outer cone surface protrudes at the front end of the main body cavity 13.
  • the cone sealing rubber tube 6 is installed on the cone surface of the core body to seal the core body 3 with the cone hole sealing surface 102 of the inner hole core cavity of the tire valve, so as to realize the prototype of the external valve and the original tire valve under the action of the installation torque Sealing effect.
  • a minimum cylindrical end 31 with a diameter of 3.75-0.03mm is provided on the front end of the outer cone of the core 3, the smaller diameter end 32 of the outer cone formed by the outer cone of the core 3 has a diameter of 3.5-0.05mm, and the larger diameter end
  • the diameter of 33 is 3.88-0.03, the angle is 14 degrees, and the large diameter end of the outer cone has a groove 35 with a diameter of 3.72*0.45mm, and the length of the groove plus the outer cone in the axial direction of the external valve is 2.1mm.
  • the core 3 has a central hole 34 with a diameter of 1 to 2 mm through it.
  • the "O" seal ring 7 is installed at the position of the step 15 at the front end of the inner cylinder 16 in the main body cavity 13 to realize the secondary sealing of the original tire valve opening and the external valve opening. After the core holder 4 is installed, its front end is basically flush with the step 15.
  • the end of the main body 1 is processed and shaped according to the core cavity and thread size of a standard valve nozzle, and is used to install a common valve core 200 and a protective cap 300.
  • the core cone sealing rubber tube 6 is made of polytetrafluoroethylene material, and the "O" seal ring is made of silicon rubber or hydrogenated nitrile rubber.
  • the size of the core cone sealing rubber tube 6 is an outer diameter of 3.9 ⁇ 0.03mm, a wall thickness of 0.33mm, and a length of 2.16 ⁇ 0.04mm.
  • the distance between the core cone sealing rubber tube 6 and the core seat 4 is 11-0.20mm after being installed on the core. .
  • the core 3 uses the length of the transition section 38 to make the core 1
  • the front end and the part where the core cone sealing rubber tube 6 is provided can be inserted into the original valve core position, and the core cone sealing rubber tube 6 can abut the cone hole sealing surface 102 of the valve core cavity.
  • the core 3, the core cone sealing rubber tube 6 and the cone hole sealing surface 102 of the valve core cavity are in the process of mutual rotation and gradual compression.
  • the core rotates in the core seat Press down vertically and install in place when the installation torque reaches 0.3 ⁇ 0.45Nm.
  • the tapered hole sealing surface 102 of the tire valve core cavity is sealed with the core tapered sealing rubber tube 6 to achieve the prototype sealing effect of the external valve and the original tire valve. Moreover, by matching the distance between the step 15 and the outer cone surface of the core 3, at this time, the "O" seal ring 7 is also squeezed by the end of the original tire valve and the step 15 to achieve a secondary seal. As a result, not only the sealing effect is better, the valve can realize the original sealing function and effect, and the total mass is also relatively lower.
  • Embodiment 2 referring to Figs. 8, 10, 11, and Fig. 9 at the same time.
  • Embodiment 2 compared to Embodiment 1, the tail seal of the core 3 is changed, and the other parts are the same as Embodiment 1.
  • the reference numerals of Embodiment 2 are the same as those of Embodiment 1, and represent the same meaning.
  • the core sealing ring 5 is installed in the core sealing ring groove 36 to realize the sealing of the tail of the core 3.
  • the core sealing ring groove 36 is provided on the tail end surface of the core 3.
  • the core sealing ring 5 is located between the tail end of the core 3 and the step 18 in the outer valve body.
  • Embodiment 3 referring to FIG. 12, and referring to FIGS. 9, 10, and 11.
  • the side surface of the external valve body 2 is provided with a connecting threaded post 21 with metric threads (or NPT sealing pipe threads) for connecting the mounting body, and the threaded post is provided with a through hole 22 of 1 to 2 mm.
  • Embodiment 4 referring to FIG. 13, and referring to FIGS. 9, 10, and 11.
  • the side surface of the external valve body 2 is provided with a connecting threaded post 21 with metric threads (or NPT sealing pipe threads) for connecting the mounting body, and the threaded post is provided with a through hole 22 of 1 to 2 mm.
  • Vibration test The test is carried out on an electric vibration testing machine.
  • the connection port of the three-way valve of the present invention is equipped with a sensor with a mass of 20 grams, and the axial direction and the test displacement are fixed on the test fixture at a frequency of 8 ⁇ 10Hz, 15mm displacement amplitude sinusoidal vibration for 2min, repeat 3 times, remove the three-way valve nozzle and observe that there is no loose connection and no displacement of the loading body.

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

Abstract

本发明提供了一种多功能外接气门嘴及加载装置安装方法，其气门嘴体设置三向贯通的主体，通过所述侧面连接部从侧面贯通所述主体；所述侧面连接部用于连接加载装置；所述轴向中孔中设置气门芯，主体的轴向中孔前部设有孔腔，用于与原装轮胎气门嘴连接，气门芯体的前部设置外锥面，芯体的包括外锥面在内的前部突出在主体孔腔前端，芯体锥面密封胶管安装于芯体外锥面上用于芯体与轮胎气门嘴内孔芯腔的锥孔密封面密封。本发明能够避免以往外接气门嘴的问题，有效防止轮胎气压泄漏，同时，能使加载结构距离气门嘴的轴线距离更近，提高动平衡性能。

Description

一种多功能外接气门嘴和气门嘴的加载装置安装方法 技术领域
本发明涉及气门嘴领域。
背景技术
汽车(特别是商用车)在使用中经常会在原装轮胎气门嘴上加载测胎压的胎压计(图1)、监测胎压的传感器(图2)、帽式外置传感器(图3)、轮胎自动补气装置(图4)、充气延伸管(图5)等。目前这些加载装置(如图1、图2)采用焊接式外接气门嘴搭载，或(如图3～图5)直接安装于轮胎气门嘴嘴口。外接气门嘴则直接与原装轮胎气门嘴连接。在介绍现有技术的附图1-6中，A1代表加载的功能装置，比如气压计、传感器等；A2代表外接气门嘴中的气门芯；A3为焊接部位，A4为外接加载件内置的橡胶平垫，A5为外接加载件内置的顶杆。
上述结构中，外接气门嘴与原装轮胎气门嘴的连接都是以外接件的顶杆A5顶开原装轮胎气门嘴的气门芯(图6)，使轮胎气源通入加载件，这样会产生显见的失效(图6)：其一、放弃了原装轮胎气门嘴芯腔锥面B1的主要密封功能，仅靠气门嘴嘴口与外接加载件内置的橡胶平垫A4密封。根据气门嘴的密封原理是利用气门芯的聚四氟乙烯耐压密封圈与气门嘴芯腔内设的锥面结合实现有效密封以防止轮胎气压泄漏，上述的仅靠气门嘴嘴口密封因嘴口加工形状和粗糙度及橡胶平垫永久压缩变形的原因极易造成慢性的轮胎气压泄漏。其二、气门芯内弹簧长期处于极限压缩状态，屈服变形使气门芯单向阀功能失效。
总之，以上加载件连接气门嘴后气门芯均处于常开状态(气门嘴的定义密封锥面密封功能被放弃)。这样就造成气门嘴密封功能失效、操作不便等缺陷。
并且，外接的气门嘴目前都是一物一用，加载功能单一，充放气不方便，适用性差。连接多采用焊接，加工工艺繁杂、可靠性差。
发明内容
本发明首先所要解决的技术问题是提供一种多功能外接气门嘴，能够避免以往外接气门嘴的问题，有效防止轮胎气压泄漏。为此，本发明采用以下技术方案：
一种多功能外接气门嘴，包括气门嘴体，其特征在于所述气门嘴体设置三向贯通的主体，所述主体设有轴向中孔以及中部侧面连接部，并通过所述侧面连接部从侧面贯通所述主体；所述侧面连接部用于连接加载装置；
所述轴向中孔中设置气门芯，所述气门芯设置气门芯体；
主体的轴向中孔前部设有孔腔，孔腔设内螺纹用于与原装轮胎气门嘴连接；
芯体的前部设置外锥面，芯体的包括外锥面在内的前部突出在主体孔腔前端，芯体锥面密封胶管安装于芯体外锥面上用于芯体与轮胎气门嘴内孔芯腔的锥孔密封面密封，所述芯体设置轴向通孔；
所述主体的末端按气门嘴的芯腔和螺纹尺寸加工成型并安装气门芯。
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，或对这些进一步的技术方案组合应用：
所述侧面连接部为连接孔或螺纹连接柱，所述连接孔的孔口设置密封圈容槽，所述螺纹连接柱设置通孔，以从侧面贯通所述轴向中孔。
所述主体孔腔包括内圆柱部分；气门芯体安装于芯座内，芯座过盈配合安装于主体孔腔的内圆柱位置，芯体安装在芯座内。
所述外接气门嘴设置芯体密封圈，芯体密封圈安装于芯体密封圈卡槽以实现芯体尾部的密封。
芯体的后部设有主圆柱和卡接部，用于和芯座配合，将芯体固定在主体上，主圆柱的前部设有过渡段，此过渡段在芯体装配后形成密封圈的安装通道；芯座设有内圆柱面，此内圆柱面与芯体的主圆柱构成相互转动的间隙配合；在过渡段的前端设置芯体的所述外锥面。
在芯体的外锥面的前端设有最小圆柱端，芯体的外锥面所形成的外圆锥体具 有小径端、大径端，且外圆锥体大径端有环形槽。
“O”型密封圈安装于主体孔腔内的所述内圆柱前端的台阶位置，实现原装轮胎气门嘴嘴口与外接气门嘴的二次密封；芯座在安装后，其前端基本和所述台阶齐平。
本发明的另一个所要解决的技术问题是提供一种气门嘴的加载装置安装方法，为此，本发明采用以下技术方案：
一种气门嘴的加载装置安装方法，其特征在于，将原装轮胎气门嘴的气门芯拆除，在原装轮胎气门嘴上利用其外螺纹和上述任意一种多功能外接气门嘴的孔腔内螺纹连接，芯体利用过渡段所具备的长度，使得芯体的前端和设置芯体锥面密封胶管的部分能插入到原装轮胎气门嘴原来设置气门芯的部位，芯体锥面密封胶管能贴靠于气门嘴芯腔的锥孔密封面；实现外接气门嘴与原轮胎气门嘴的原型密封效果。
所述加载装置包括胎压计、监测胎压的传感器、帽式外置传感器、轮胎自动补气装置、充气延伸管。
汽车轮胎(和轮辋)气门嘴是按标准安装的配件，其功能是给轮胎充气(或液体)、放气和密气。在原有轮胎气门嘴上加载外接气门嘴用于搭载如气压表、监测胎压和温度传感器、轮胎自动补气装置、充气延伸管等是为了增加方便充放气、保持轮胎气压、监控轮胎气压、温度等功能。本发明的外接气门嘴能够利用端部芯体组件满足外接气门嘴对原装气门嘴芯腔密封锥面的密封和自密封，有效防止轮胎气压泄漏。同时，本发明的多功能外接三通气门嘴能满足搭载不同的接头、气压表、传感器、自动补气装置等功能件，充分实现了功能多样性，两个方向的接口方便气体(或液体)的从两个方向充入和流出，同时，能使加载结构距离气门嘴的轴线距离更近，提高动平衡性能。
附图说明
图1至图5为现有的加载不同功能装置的外接气门嘴的剖视图。
图6为现有的外接气门嘴和原装轮胎气门嘴的连接示意图。
图7为本发明实施例1的剖视图。
图8为本发明实施例2的剖视图。
图9为本发明实施例1芯体的示意图。
图10为本发明实施例2的爆炸图。
图11为本发明实施例2和原装轮胎气门嘴的连接示意图。
图12为本发明实施例3的剖视图。
图13为本发明实施例4的剖视图。
具体实施方式
实施例1，参照图7、9，同时也参考图10、11。
本实施例提供的外接气门嘴，包括三向贯通的主体1，主体1的侧面设有米制螺纹(或NPT密封管螺纹)的连接孔11和密封圈容槽12(用于连接搭载体)，密封圈容槽12处在连接孔11的孔口，槽的深度1～1.5mm。
所述连接孔11设置在主体1的中部，主体1对应所述连接孔11的位置的壁厚大于下述孔腔13处的主体壁厚也大于下述设置气门芯200处的主体壁厚。且主体1对应所述连接孔11的位置处的内径小于下述孔腔13处的内径。安装时，将TPMS传感器总成400等加载件螺纹连接安装于主体1的侧面连接孔11上，以“O”型密封圈8密封加螺纹密封胶9锁固(其它加载件同理连接)。从而避免了传感器座与外接气门嘴焊接后再安装传感器并进行旋压加工固定等一系列加工、检验过程。而且，使得加载件更接近外接气门嘴轴线，提高动平衡性能。
主体1的前端设有孔腔13，孔腔13内设8V1内螺纹14用于与原装轮胎气门嘴100连接，具体的，该内螺纹14和原装轮胎气门嘴100的外螺纹101螺纹连接。
外接气门嘴的前端设置气门芯体3，芯体3安装于芯座4内，芯体密封圈5安装于芯体密封圈卡槽31以实现芯体3尾部的密封，具体的，该芯体密封圈卡 槽31设置在芯体3的侧面，芯体密封圈5处在芯体3和芯座4之间。
芯体3设有直径4.45-0.03mm的主圆柱37。主圆柱37的后部设有卡接部39，，用于和芯座4配合，将芯体3固定在主体1上，主圆柱37的前部设有直径3.7mm的过渡段38，此过渡段38在芯体3装配后形成下述密封圈7的安装通道17。芯座4设有4.5±0.03的内圆柱面41，此内圆柱面41与芯体3的主圆柱37构成相互转动的间隙配合。在过渡段33的前端设置芯体的外锥面。
芯座4过盈配合安装于主体孔腔13的内圆柱16位置，内圆柱16直径6.9-0.03mm，芯体3的包括外锥面在内的前部突出在主体孔腔13前端，芯体锥面密封胶管6安装于芯体外锥面上用于芯体3与轮胎气门嘴内孔芯腔的锥孔密封面102密封，从而在安装扭矩作用下实现外接气门嘴与原轮胎气门嘴的原型密封效果。
在芯体3的在外锥面的前端设有直径3.75-0.03mm的最小圆柱端31，芯体3的外锥面所形成的外圆锥体的小径端32的直径3.5-0.05mm，大径端33的直径3.88-0.03，角度为14度°，且外圆锥体大径端有直径3.72*0.45mm槽35，槽加外圆锥体在外接气门嘴轴向上的长度为2.1mm。芯体3有贯通的直径1～2mm的中心孔34。
“O”型密封圈7安装于主体孔腔13内的所述内圆柱16前端的台阶15位置，实现原装轮胎气门嘴嘴口与外接气门嘴的二次密封。芯座4在安装后，其前端基本和所述台阶15齐平。
主体1的末端按标准气门嘴的芯腔和螺纹尺寸加工成型，用于安装普通气门芯200和防护帽300。
芯体锥面密封胶管6采用聚四氟乙烯材料制造，“O”型密封圈采用硅橡胶或氢化丁晴橡胶制造。芯体锥面密封胶管6尺寸为外径3.9±0.03mm，壁厚0.33mm，长度2.16±0.04mm，其安装于芯体后芯体锥面密封胶管6与芯座4间距为11-0.20mm。
在进行安装时，先拆除原装轮胎气门嘴气门芯体，然后将，本发明的外接气门嘴装在原装轮胎气门嘴100上，芯体3利用过渡段38所具备的长度，使得芯体1的前端和设置芯体锥面密封胶管6的部分能插入到原来设置气门芯的部位，芯体锥面密封胶管6能贴靠于气门嘴芯腔的锥孔密封面102。在＜0.1N.m安装扭矩时芯体3、芯体锥面密封胶管6及气门嘴芯腔的锥孔密封面102处于相互旋转逐步压紧过程，当扭矩逐渐加大则芯体在芯座内转动垂直下压，安装扭矩至0.3～0.45N.m时安装到位，轮胎气门嘴芯腔的锥孔密封面102与芯体锥面密封胶管6密封而实现外接气门嘴与原轮胎气门嘴的原型密封效果，并且，通过台阶15与芯体3的外锥面的间距配合，此时，“O”型密封圈7也被原轮胎气门嘴的端部和台阶15挤压而实现二道密封。由此，不仅密封效果更好，使得气门嘴能实现原有的密封功能和效果，而且，总质量也相对更低。
实施例2，参照图8、10、11，同时，参考图9。
本实施例中，相比于实施例1，对芯体3的尾部密封作了改变，其它与实施例1相同，实施例2的附图标号和实施例1相同的，代表相同的含义。
对于芯体3的尾部密封，芯体密封圈5安装于芯体密封圈卡槽36以实现芯体3尾部的密封，具体的，该芯体密封圈卡槽36设置在芯体3的尾端面，芯体密封圈5处在芯体3的尾端和外接气门嘴主体内的台阶18之间。
实施例3，参照图12，同时，参考图9、10、11。
在本实施例中，外接气门嘴主体2的侧面设有米制螺纹(或NPT密封管螺纹)的连接螺纹柱21，用于连接搭载体，且螺纹柱设有1～2mm通孔22。
本实施例的其它部分和实施例1相同。
实施例4，参照图13，同时，参考图9、10、11。
在本实施例中，外接气门嘴主体2的侧面设有米制螺纹(或NPT密封管螺纹)的连接螺纹柱21，用于连接搭载体，且螺纹柱设有1～2mm通孔22。
本实施例的其它部分和实施例2相同。
以下为以实施例2为例，经型式试验验证的结果：
(一)、振动试验：试验在电动振动试验机上进行，将本发明三通气门嘴的连接口搭载质量20克的传感器后轴向与试验位移同向固定在试验治具上，以频率8～10Hz、位移幅值15mm正弦振动2min，重复3次，卸下三通气门嘴观察搭载体连接无松动、无位移。
(二)密封试验：将振动试验后的三通气门嘴(连同搭载件)以0.3～0.45N.m的扭矩安装在密封试验工装上，室温下连同试验工装放入水槽，充上1.4Mpa的气压，观察60s试验结果无气泡溢出。将室温试验合格品连同工装及试验用的乙醇放入(-40-5)℃的低温箱中，试验时低温恒压0.85Mpa的压缩空气，时间24h，观察60S无气泡溢出。将低温试验合格品连同工装放入100+5℃的高温箱中24h,取出后浸入(60±5)℃水中，充入0.85Mpa的压缩空气，观察60S无气泡溢出。密封试验完成后卸下三通气门嘴观察芯体密封圈无破损、无褶皱。
以上所述仅为本发明的具体实施例，但本发明的结构特征并不局限于此，任何本领域的技术人员在本发明的领域内，所作的变化或修饰皆涵盖在本发明的保护范围之中。

Claims (9)

  1. 一种多功能外接气门嘴，包括气门嘴体，其特征在于所述气门嘴体设置三向贯通的主体，所述主体设有轴向中孔以及中部侧面连接部，并通过所述侧面连接部从侧面贯通所述主体；所述侧面连接部用于连接加载装置；
    所述轴向中孔中设置气门芯，所述气门芯设置气门芯体；
    主体的轴向中孔前部设有孔腔，孔腔设内螺纹用于与原装轮胎气门嘴连接；
    芯体的前部设置外锥面，芯体的包括外锥面在内的前部突出在主体孔腔前端，芯体锥面密封胶管安装于芯体外锥面上用于芯体与轮胎气门嘴内孔芯腔的锥孔密封面密封，所述芯体设置轴向通孔；
    所述主体的末端按气门嘴的芯腔和螺纹尺寸加工成型并安装气门芯。
  2. 如权利要求1所述的一种多功能外接气门嘴，其特征在于所述侧面连接部为连接孔或螺纹连接柱，所述连接孔的孔口设置密封圈容槽，所述螺纹连接柱设置通孔，以从侧面贯通所述轴向中孔。
  3. 如权利要求1所述的一种多功能外接气门嘴，其特征在于所述主体孔腔包括内圆柱部分；气门芯体安装于芯座内，芯座过盈配合安装于主体孔腔的内圆柱位置，芯体安装在芯座内。
  4. 如权利要求1所述的一种多功能外接气门嘴，其特征在于所述外接气门嘴设置芯体密封圈，芯体密封圈安装于芯体密封圈卡槽以实现芯体尾部的密封。
  5. 如权利要求3所述的一种多功能外接气门嘴，其特征在于芯体的后部设有主圆柱和卡接部，用于和芯座配合，将芯体固定在主体上，主圆柱的前部设有过渡段，此过渡段在芯体装配后形成密封圈的安装通道；芯座设有内圆柱面，此内圆柱面与芯体的主圆柱构成相互转动的间隙配合；在过渡段的前端设置芯体的所述外锥面。
  6. 如权利要求1所述的一种多功能外接气门嘴，其特征在于在芯体的外锥面的前端设有最小圆柱端，芯体的外锥面所形成的外圆锥体具有小径端、大径端， 且外圆锥体大径端有环形槽。
  7. 如权利要求3所述的一种多功能外接气门嘴，其特征在于“O”型密封圈安装于主体孔腔内的所述内圆柱前端的台阶位置，实现原装轮胎气门嘴嘴口与外接气门嘴的二次密封；芯座在安装后，其前端基本和所述台阶齐平。
  8. 一种气门嘴的加载装置安装方法，其特征在于，将原装轮胎气门嘴的气门芯拆除，在原装轮胎气门嘴上利用其外螺纹和权利要求1-7的任意一种多功能外接气门嘴的孔腔内螺纹连接，芯体利用过渡段所具备的长度，使得芯体的前端和设置芯体锥面密封胶管的部分能插入到原装轮胎气门嘴原来设置气门芯的部位，芯体锥面密封胶管能贴靠于气门嘴芯腔的锥孔密封面；实现外接气门嘴与原轮胎气门嘴的原型密封效果。
  9. 如权利要求8所述的一种气门嘴的加载装置安装方法，其特征在于，所述加载装置包括胎压计、监测胎压的传感器、帽式外置传感器、轮胎自动补气装置、充气延伸管。
PCT/CN2019/094865 2019-06-11 2019-07-05 一种多功能外接气门嘴和气门嘴的加载装置安装方法 WO2020248312A1 (zh)

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US20220234402A1 (en) 2022-07-28
CN112066065A (zh) 2020-12-11

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