WO2018072467A1 - 一种适用于车用气体燃料加注用球阀 - Google Patents

一种适用于车用气体燃料加注用球阀 Download PDF

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Publication number
WO2018072467A1
WO2018072467A1 PCT/CN2017/090704 CN2017090704W WO2018072467A1 WO 2018072467 A1 WO2018072467 A1 WO 2018072467A1 CN 2017090704 W CN2017090704 W CN 2017090704W WO 2018072467 A1 WO2018072467 A1 WO 2018072467A1
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Prior art keywords
valve
ball
valve body
valve seat
port
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PCT/CN2017/090704
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English (en)
French (fr)
Inventor
王振勇
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赛洛克流体设备成都有限公司
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Publication of WO2018072467A1 publication Critical patent/WO2018072467A1/zh

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    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details

Definitions

  • the present invention relates to the field of valves, and more particularly to a ball valve suitable for use in gas fueling for vehicles.
  • the three-way ball valve is the most suitable for the high-pressure environment.
  • the conventional three-way ball valve can only enter the medium from the side, and the medium flows out from the bottom.
  • Conventional Ball valves can not withstand such large pressures for a long time.
  • the service life of ball valves is usually very short and needs to be replaced frequently. At the same time, it is easy to cause cracking under strong pressure, resulting in leakage of gas medium.
  • the object of the present invention is to provide a ball valve suitable for gas fueling for vehicles, which solves the problem that the conventional ball valve has a single direction of use and does not easily share the pressure of the fuel medium on the valve port during the process of filling the gas fuel into the vehicle, thereby causing the ball valve to be used.
  • the problem of short life solving the problem that the specific pressure between the valve seat and the valve ball is large, the handle of the valve handle is very heavy, and the life of the valve handle is short.
  • the utility model relates to a ball valve for gas fuel filling of a vehicle, comprising a valve body, a valve seat and a valve ball.
  • the valve seat and the valve ball are located inside the valve body, and two circular through holes are arranged on the surface of the valve ball, and two circular shapes are provided.
  • the passage formed by the through holes is perpendicular to each other; a diversion cavity is further disposed inside the valve ball, the diversion cavity is a fold line shape having only one chamfer; the valve ball is located at the center of the valve body, and the valve ball is located on both sides of the sphere
  • the valve seat is connected; a valve seat support is also arranged in the valve body, and the valve seat support is connected with the valve seat, and a butterfly spring is further disposed between the valve seat support and the joint on both sides of the valve body.
  • valve ports A and B there are two valve ports A and B in the joints on both sides of the valve body, and the A valve port and the B valve port are respectively connected with two flow channel holes located in the valve body.
  • a C valve port is also provided at the bottom of the valve body, and the C valve port is adjacent to the valve ball located inside the valve body.
  • two cylindrical connecting members are arranged at the top and bottom of the valve ball sphere, the cylindrical connecting end of the valve ball sphere is connected with the valve stem, and the other end is connected with the cylindrical passage located inside the valve ball sphere;
  • the cylindrical connecting member at the bottom of the ball body is connected at one end to a circular through hole on the surface of the valve ball, and the other end is connected to a vertical passage located inside the ball of the valve ball; and a through hole is formed in the side wall of the vertical passage
  • the hole, the through hole communicates with another circular through hole located on the surface of the valve ball to form a lateral passage, and the lateral passage and the vertical passage are perpendicular to each other.
  • a fold-type flow guiding cavity inside the valve body communicates with the surface of the valve ball sphere, and the position of the flow guiding cavity is opposite to the position of the circular through hole connected to the lateral passage.
  • a filling pipe is connected to one end of the A valve port.
  • the valve handle is activated. Since the A valve port is opened, the pressure of the high pressure gas at the bottom of the valve body is released, and the high pressure gas releases the thrust. The fuel is pushed from the C valve port located at the bottom of the valve body, and then exits from the A valve port and enters the filling pipe. At this time, the C valve port and the B valve port are not connected.
  • the valve handle is rotated clockwise by 90°, the passage formed by the C valve port and the A valve port is closed, and the fold-type guiding cavity formed by the A valve port and the B valve port is connected, and is located at A at this time.
  • the high pressure gas at the valve port is discharged from the B valve port. Under the pulsation of the high pressure gas, as the high pressure gas moves, the fuel is injected from the A valve port into the B valve port. Thereby the process of filling the vehicle with gaseous fuel is completed.
  • the fold-type diversion cavity inside the valve body changes the original ball valve can only enter the medium from the side, the bottom out structure, so that the fluid medium can enter from the bottom of the valve, side out, or the fluid medium can be from one side Side entry, side on the other side.
  • Each valve port can be used as an inlet valve or an outlet valve to share the pressure exerted by the fuel medium on the valve. Moreover, it is more convenient to transport the fuel medium in different directions without changing the direction of the valve.
  • the invention is also suitable for high-pressure environment, because the butterfly spring is arranged, the impact force of the pressure on the valve seat and the joint is smaller, and the structure of the valve seat guide, the O-ring, the valve seat O-ring retaining ring, the joint and the valve The gas leakage is not easy between the bodies.
  • the decompression of the butterfly springs solves the problem that when the specific pressure between the valve seat and the valve ball is large, the handle of the valve handle is very heavy, and the valve handle has a short life. problem.
  • valve handle having a pin on the handle of the valve that matches the size of the stop hole on the valve body. Further, the pin is provided on the valve handle to have a limit position, and the pin and the limit hole cooperate to confirm whether the valve handle reaches an accurate rotational position.
  • valve stem having one end connected to the valve handle by a hexagonal cylindrical end set screw and the other end connected to a valve ball in the valve body.
  • valve handle changes the direction of rotation of the ball by the rotation of the hexagonal cylindrical end set screw, and the valve handle is connected to the ball through the valve stem to control the ball.
  • the present invention has the following advantages and beneficial effects:
  • a ball valve suitable for gas fueling for vehicles wherein two circular through holes are arranged on the surface of the valve ball, and the channels formed by the two circular through holes are perpendicular to each other; a diversion cavity having a polygonal shape having only one chamfer; the fold-type diversion cavity inside the valve body changes the structure of the original ball valve which can only enter the medium from the side, and the bottom structure
  • the fluid medium can be introduced from the bottom of the valve, sideways, or the fluid medium can be introduced from one side of the side and the side of the other side.
  • Each valve port can be used as an inlet valve or an outlet valve to share the pressure exerted by the fuel medium on the valve. Moreover, it is more convenient to transport the fuel medium in different directions without changing the direction of the valve. This change significantly increases the life of the ball valve by 3-5 times, greatly reducing the cost;
  • the utility model relates to a ball valve for gas fuel filling of a vehicle.
  • the decompression of the butterfly spring solves the problem that when the specific pressure between the valve seat and the valve ball is large, the handle of the valve handle is heavy. The problem of short valve handle life.
  • Figure 1 is a schematic view of the structure of the present invention
  • FIG. 2 is a schematic structural view of a valve ball of the present invention
  • Figure 3 is a schematic view of the filling process of the present invention.
  • Figure 4 is a schematic view of the discharge process of the present invention.
  • valve body 2-valve seat, 3-valve ball, 4-round through hole, 5-flow diversion cavity, 6-seat support, 7-joint, 8-spr spring, 9-A valve port , 10-B valve port, 11-C valve port, 12-valve handle, 13-pin, 14-valve, 15-hexagonal cylindrical end set screw.
  • a ball valve suitable for a gas fueling for a vehicle includes a valve body 1, a valve seat 2, a valve ball 3, a valve seat 2 and a valve ball 3 at a valve.
  • a valve body 1 Inside the body 1, two circular through holes 4 are disposed on the surface of the valve ball 3, and the channels formed by the two circular through holes 4 are perpendicular to each other; and a flow guiding cavity 5 is further disposed inside the valve ball 3,
  • the guiding cavity 5 is in the shape of a broken line having only one chamfer;
  • the valve ball 3 is located at the center of the valve body 1, and the valve ball 3 is connected with the valve seat 2 on both sides of the ball body;
  • the valve body 1 is also provided with a valve seat support 6, a valve
  • the seat support 6 is connected to the valve seat 2, and a butterfly spring 8 is further disposed between the valve seat support 6 and the joint 7 on both sides of the valve body 1.
  • valve ports A and B are disposed in the joint 7 on both sides of the valve body 1, and the A valve port 9 and the B valve port 10 are respectively connected with two flow passage holes located in the valve body.
  • a C valve port 11 is also provided at the bottom of the valve body, and the C valve port 11 is adjacent to the valve ball 3 located inside the valve body 1.
  • a valve handle 12 on which is disposed a pin 13 having a diameter that matches the size of the stop hole on the valve body 1.
  • a valve stem 14 having one end connected to the valve handle 12 by a hexagonal cylindrical end set screw 15 and the other end connected to the valve ball 3 in the valve body 1.
  • a working process suitable for a ball valve for gas fueling of a vehicle a filling pipe is connected to one end of the A valve port 9
  • the valve handle 12 is activated. Since the A valve 9 is opened, the pressure of the high pressure gas at the bottom of the valve body 1 is released, and the high pressure gas is released to generate thrust, which can push the fuel from the C valve located at the bottom of the valve body 1.
  • the port 11 enters and then exits from the A valve port 9 and enters the filling pipe, at which time the C valve port 11 and the B valve port 10 are not in communication.
  • the valve handle 12 is rotated clockwise by 90°, the passage formed by the C valve port 11 and the A valve port 9 is closed, and the fold line type diversion cavity 5 formed by the A valve port 9 and the B valve port 10 is connected.
  • the high pressure gas located at the A valve port 9 is discharged from the B valve port 10.
  • the fuel is injected from the A valve port 9 to the B valve port 10 in. Thereby the process of filling the vehicle with gaseous fuel is completed.
  • the fold-type diversion cavity 5 inside the valve body 1 changes the structure that the original ball valve can only enter the medium from the side, and the bottom is out.
  • the present invention is also applicable to a high pressure environment, because the butterfly spring 8 is provided, the impact of the pressure on the valve seat 2 and the joint 7 is smaller, and the gas leakage between the joint 7 and the valve body 1 is not easily caused, and at the same time, because of the butterfly shape
  • the decompression of the spring 8 solves the problem that when the specific pressure between the valve seat 2 and the valve ball 3 is large, the valve handle 12 is operated with a heavy hand and the valve handle 12 has a short life.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

一种适用于车用气体燃料加注用球阀，包括阀体（1）、阀座（2）、阀球（3），阀座和阀球位于阀体内部，在阀球表面设置有两个圆形通孔（4），两个圆形通孔所形成的通道互相垂直；在阀球内部还设置有一个导流空腔（5），所述导流空腔为只有一个折角的折线形状；阀球位于阀体中心，阀球与位于球体两侧的阀座（2）连接；在阀体内还设置有阀座支撑（6），阀座支撑与阀座连接，在阀座支撑与位于阀体两侧的接头之间还设置有蝶形弹簧（8）。能够解决在给车加注气体燃料过程中，常规球阀不容易加注气体燃气、需要过大的压力加注，造成球阀使用寿命短，需要经常更换、燃气泄漏的问题。

Description

一种适用于车用气体燃料加注用球阀 技术领域
本发明涉及阀门领域，具体地说涉及一种适用于车用气体燃料加注用球阀。
背景技术
随着天然气汽车的普及，在车子燃气加注常常需要在高压环境下实现。在现实生活中，适用于高压环境的分流阀门使用三通球阀最多，常规的三通球阀通常只可以从侧面进介质，底部流出介质，加注燃料介质时需要过大的压力加注，常规的球阀不能长时间承受那么大的压力，球阀的使用寿命通常很短，需要经常更换，同时也容易在强压下造成开裂，导致燃气介质泄漏。
发明内容
本发明的目的在于提供一种适用于车用气体燃料加注用球阀，解决给车加注气体燃料过程中，常规球阀使用方向单一、不容易分摊燃料介质对阀门口产生的压力，造成球阀使用寿命短的问题；解决阀座与阀球之间的比压较大时，使得阀门手柄操作手感很重，阀门手柄寿命短的问题。
本发明通过下述技术方案实现：
一种适用于车用气体燃料加注用球阀，包括阀体、阀座、阀球，阀座和阀球位于阀体内部，在阀球表面设置有两个圆形通孔，两个圆形通孔所形成的通道互相垂直；在阀球内部还设置有一个导流空腔，所述导流空腔为只有一个折角的折线形状；阀球位于阀体中心，阀球与位于球体两侧的阀座连接；在阀体内还设置有阀座支撑，阀座支撑与阀座连接，在阀座支撑与位于阀体两侧的接头之间还设置有蝶形弹簧。
在位于阀体两侧的接头内还设置有A、B两个阀门口，A阀门口与B阀门口分别与位于阀体内的两个流道孔连接。
在阀体底部还设置有个C阀门口，C阀门口与位于阀体内部的阀球相邻。
在本发明中，在阀球球体顶部和底部设置有两个圆柱形连接件，阀球球体顶部的圆柱形连接一端与阀杆连接，另一端与位于阀球球体内部的圆柱形通道相连；阀球球体底部的圆柱形连接件一端与阀球表面的一个圆形通孔连接，另一端与位于阀球球体内部的竖直通道相连；在所述的竖直通道的侧壁上还开有一通孔，通孔与位于阀球表面的另一个圆形通孔连通形成一个横向通道，横向通道与竖直通道互相垂直。在阀体内部的折线型导流空腔与阀球球体表面连通，导流空腔的位置和与横向通道相连的圆形通孔的位置相反。
进一步的，在A阀门口的一端连接有加注管道，加注燃料时，启动阀门手柄，由于A阀门口被打开，位于阀体底部的高压气体的压强得到释放，高压气体释放产生推力，可推动燃料从位于阀体底部的C阀门口进入，然后从A阀门口出，进入到加注管道中，此时C阀门口和B阀门口不连通。加注完毕，将阀门手柄顺时针旋转90°，C阀门口与A阀门口所形成的通道关闭，A阀门口与B阀门口所形成的折线型导流空腔被连通，此时位于在A阀门口处的高压气体又从B阀门口排出，在高压气体的抽动下，随着高压气体的移动，加注燃料又从A阀门口注入到B阀门口中。从而完成了给车辆加注气体燃料的过程。在阀体内部的折线型导流空腔改变了原有的球阀只可以从侧面进介质，底部出的结构，使流体介质可以从阀门底部进，侧面出，或使流体介质可以从一侧的侧面进，另一侧的侧面出。各个阀门口都可以作为进口阀门或出口阀门，分摊了燃料介质对阀门产生的压力。并且，还能在不改变阀门方向的情况下，更方便运输不同方向的燃料介质，此改变将球阀的寿命显著提高了3-5倍，大大的降低了成本。本发明还适用于高压环境，因为设置有蝶形弹簧，压力对阀座和接头的冲击力更小，有阀座导向件、O型圈、阀座O型圈挡圈等结构，接头与阀体之间也不容易造成气体泄漏，同时，因为蝶形弹簧的减压，解决了当阀座与阀球之间的比压较大时，使得阀门手柄操作手感很重，阀门手柄寿命短的问题。
还包括阀门手柄，在阀门手柄上设置有销钉，销钉直径大小与位于阀体上的限位孔大小匹配。进一步的，在阀门手柄上设置有销钉具有限位的作用，通过销钉与限位孔配合作用可确认阀门手柄是否达到了准确的旋转位置。
还包括阀杆，阀杆的一端与阀门手柄通过内六角圆柱端紧定螺钉连接，另一端与阀体内的阀球连接。
进一步的，阀门手柄上通过内六角圆柱端紧定螺钉的转动而改变阀球转动方向，阀门手柄通过阀杆与阀球连接来控制阀球。
本发明与现有技术相比，具有如下的优点和有益效果：
1、本发明一种适用于车用气体燃料加注用球阀，在阀球表面设置有两个圆形通孔，两个圆形通孔所形成的通道互相垂直；在阀球内部还设置有一个导流空腔，所述导流空腔为只有一个折角的折线形状；在阀体内部的折线型导流空腔改变了原有的球阀只可以从侧面进介质，底部出的结构，使流体介质可以从阀门底部进，侧面出，或使流体介质可以从一侧的侧面进，另一侧的侧面出。各个阀门口都可以作为进口阀门或出口阀门，分摊了燃料介质对阀门产生的压力。并且，还能在不改变阀门方向的情况下，更方便运输不同方向的燃料介质，此改变将球阀的寿命显著提高了3-5倍，大大的降低了成本；
2、本发明一种适用于车用气体燃料加注用球阀，因为蝶形弹簧的减压，解决了当阀座与阀球之间的比压较大时，使得阀门手柄操作手感很重，阀门手柄寿命短的问题。
附图说明
此处所说明的附图用来提供对本发明实施例的进一步理解，构成本申请的一部分，并不构成对本发明实施例的限定。在附图中：
图1为本发明的结构示意图；
图2为本发明阀球的结构示意图；
图3为本发明加注过程示意图；
图4为本发明排放过程示意图。
附图中的标记及对应的部件名称：
1-阀体，2-阀座，3-阀球，4-圆形通孔，5-导流空腔，6-阀座支撑，7-接头，8-蝶形弹簧，9-A阀门口，10-B阀门口，11-C阀门口，12-阀门手柄，13-销钉，14-阀杆，15-内六角圆柱端紧定螺钉。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白，下面结合实施例和附图，对本发明作进一步的详细说明，本发明的示意性实施方式及其说明仅用于解释本发明，并不作为对本发明的限定。
实施例1：
如图1、图2、图3、图4所示的一种适用于车用气体燃料加注用球阀，包括阀体1、阀座2、阀球3，阀座2和阀球3位于阀体1内部，在阀球3表面设置有两个圆形通孔4，两个圆形通孔4所形成的通道互相垂直；在阀球3内部还设置有一个导流空腔5，所述导流空腔5为只有一个折角的折线形状；阀球3位于阀体1中心，阀球3与位于球体两侧的阀座2连接；在阀体1内还设置有阀座支撑6，阀座支撑6与阀座2连接，在阀座支撑6与位于阀体1两侧的接头7之间还设置有蝶形弹簧8。
在位于阀体1两侧的接头7内还设置有A、B两个阀门口，A阀门口9与B阀门口10分别与位于阀体内的两个流道孔连接。在阀体底部还设置有个C阀门口11，C阀门口11与位于阀体1内部的阀球3相邻。还包括阀门手柄12，在阀门手柄12上设置有销钉13，销钉13直径大小与位于阀体1上的限位孔大小匹配。还包括阀杆14，阀杆14的一端与阀门手柄12通过内六角圆柱端紧定螺钉15连接，另一端与阀体1内的阀球3连接。
一种适用于车用气体燃料加注用球阀的工作过程：在A阀门口9的一端连接有加注管 道，加注燃料时，启动阀门手柄12，由于A阀门9被打开，位于阀体1底部的高压气体的压强得到释放，高压气体释放产生推力，可推动燃料从位于阀体1底部的C阀门口11进入，然后从A阀门口9出，进入到加注管道中，此时C阀门口11和B阀门口10不连通。加注完毕，将阀门手柄12顺时针旋转90°，C阀门口11与A阀门口9所形成的通道关闭，A阀门口9与B阀门口10所形成的折线型导流空腔5被连通，此时位于在A阀门口9处的高压气体又从B阀门口10排出，在高压气体的抽动下，随着高压气体的移动，加注燃料又从A阀门口9注入到B阀门口10中。从而完成了给车辆加注气体燃料的过程。在阀体1内部的折线型导流空腔5改变了原有的球阀只可以从侧面进介质，底部出的结构，此改变将球阀的寿命显著提高了3-5倍，大大的降低了成本。本发明还适用于高压环境，因为设置有蝶形弹簧8，压力对阀座2和接头7的冲击力更小，接头7与阀体1之间也不容易造成气体泄漏，同时，因为蝶形弹簧8的减压，解决了当阀座2与阀球3之间的比压较大时，使得阀门手柄12操作手感很重，阀门手柄12寿命短的问题。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (5)

  1. 一种适用于车用气体燃料加注用球阀，包括阀体(1)、阀座(2)、阀球(3)，阀座(2)和阀球(3)位于阀体(1)内部，其特征在于，在阀球(3)表面设置有两个圆形通孔(4)，两个圆形通孔(4)所形成的通道互相垂直；在阀球(3)内部还设置有一个导流空腔(5)，所述导流空腔(5)为只有一个折角的折线形状；阀球(3)位于阀体(1)中心，阀球(3)与位于球体两侧的阀座(2)连接；在阀体(1)内还设置有阀座支撑(6)，阀座支撑(6)与阀座(2)连接，在阀座支撑(6)与位于阀体(1)两侧的接头(7)之间还设置有蝶形弹簧(8)。
  2. 根据权利要求1所述的一种适用于车用气体燃料加注用球阀，其特征在于，在位于阀体(1)两侧的接头(7)内还设置有A、B两个阀门口，A阀门口(9)与B阀门口(10)分别与位于阀体内的两个流道孔连接。
  3. 根据权利要求1所述的一种适用于车用气体燃料加注用球阀，在阀体底部还设置有个C阀门口(11)，C阀门口(11)与位于阀体(1)内部的阀球(3)相邻。
  4. 根据权利要求1所述的一种适用于车用气体燃料加注用球阀，其特征在于，还包括阀门手柄(12)，在阀门手柄(12)上设置有销钉(13)，销钉(13)直径大小与位于阀体(1)上的限位孔大小匹配。
  5. 根据权利要求1所述的一种适用于车用气体燃料加注用球阀，其特征在于，还包括阀杆(14)，阀杆(14)的一端与阀门手柄(12)通过内六角圆柱端紧定螺钉(15)连接，另一端与阀体(1)内的阀球(3)连接。
PCT/CN2017/090704 2016-10-19 2017-06-29 一种适用于车用气体燃料加注用球阀 WO2018072467A1 (zh)

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