Nothing Special   »   [go: up one dir, main page]

CN106286878A - One is applicable to vehicular gaseous propellant filling ball valve - Google Patents

One is applicable to vehicular gaseous propellant filling ball valve Download PDF

Info

Publication number
CN106286878A
CN106286878A CN201610909786.8A CN201610909786A CN106286878A CN 106286878 A CN106286878 A CN 106286878A CN 201610909786 A CN201610909786 A CN 201610909786A CN 106286878 A CN106286878 A CN 106286878A
Authority
CN
China
Prior art keywords
valve
ball
seat
valve seat
applicable
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.)
Pending
Application number
CN201610909786.8A
Other languages
Chinese (zh)
Inventor
王振勇
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.)
Sedlock Fluid Equipment Chengdu Co Ltd
Original Assignee
Sedlock Fluid Equipment Chengdu 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 Sedlock Fluid Equipment Chengdu Co Ltd filed Critical Sedlock Fluid Equipment Chengdu Co Ltd
Priority to CN201610909786.8A priority Critical patent/CN106286878A/en
Publication of CN106286878A publication Critical patent/CN106286878A/en
Priority to PCT/CN2017/090704 priority patent/WO2018072467A1/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug 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
    • F16K5/06Plug 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
    • F16K5/0605Plug 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/60Handles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug 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
    • F16K5/06Plug 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
    • F16K5/0647Spindles or actuating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug 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
    • F16K5/08Details

Landscapes

  • 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

The invention discloses one and be applicable to vehicular gaseous propellant filling ball valve, be positioned at valve inner including valve body, valve seat, valve ball, valve seat and valve ball, ball surface is provided with two manholes, the passage that two manholes are formed is orthogonal;Being additionally provided with a water conservancy diversion cavity inside valve ball, described water conservancy diversion cavity is the broken line shape of only one of which knuckle;Valve ball is positioned at valve body center, and valve ball is connected with the valve seat being positioned at spheroid both sides;Being additionally provided with valve seat in valve body to support, valve seat supports and is connected with valve seat, supports at valve seat and is additionally provided with butterfly spring between the joint of valve body both sides.The present invention solves in car filling fuel process gas, and conventional ball valve is not easy to fill gas combustion gas, need excessive pressure filling, causes ball valve short for service life, and needs are often changed, the problem of gas leakage.

Description

One is applicable to vehicular gaseous propellant filling ball valve
Technical field
The present invention relates to valve field, relate in particular to one and be applicable to vehicular gaseous propellant filling ball valve.
Background technology
Along with popularizing of gas-fueled vehicles, realize under car combustion gas filling usually needs in environment under high pressure.Raw in reality In work, it is adaptable to the by-pass valve of environment under high pressure uses tee ball valve most, and conventional tee ball valve generally may only be from side Entering medium, medium is flowed out in bottom, needs excessive pressure filling, conventional ball valve not to bear for a long time during fueling medium The biggest pressure, the service life of ball valve is the shortest, needs often to change, also easily causes cracking under suppressing simultaneously, Gas medium is caused to leak.
Summary of the invention
It is an object of the invention to provide one and be applicable to vehicular gaseous propellant filling ball valve, solve to fill gas to car In Fuel Process, conventional ball valve uses that direction is single, is not easy to share the pressure that valve port is produced by fuel medium, causes ball valve The problem that service life is short;Solve the ratio pressure between valve seat and valve ball bigger time so that valve handle operating handle is the heaviest, valve The problem that the handle life-span is short.
The present invention is achieved through the following technical solutions:
One is applicable to vehicular gaseous propellant filling ball valve, is positioned at valve body including valve body, valve seat, valve ball, valve seat and valve ball Portion, is provided with two manholes in ball surface, and the passage that two manholes are formed is orthogonal;Inside valve ball also Being provided with a water conservancy diversion cavity, described water conservancy diversion cavity is the broken line shape of only one of which knuckle;Valve ball is positioned at valve body center, valve ball It is connected with the valve seat being positioned at spheroid both sides;Being additionally provided with valve seat in valve body to support, valve seat supports and is connected with valve seat, props up at valve seat Support and be additionally provided with butterfly spring between the joint of valve body both sides.
Be additionally provided with two valve ports of A, B at the joint being positioned at valve body both sides, A valve port and B valve port respectively with position Two runner holes in valve body connect.
Being additionally provided with a C valve port at body base, C valve port is adjacent with the valve ball being positioned at valve inner.
In the present invention, it is provided with two cylinder-shaped links at valve ball spheroid top and bottom, valve ball spheroid top The cylindrical one end that connects is connected with valve rod, and the other end is connected with the cylindrical channel being positioned at valve ball ball interior;At the bottom of valve ball spheroid The cylinder-shaped link one end in portion is connected with a manhole of ball surface, the other end be positioned at the perpendicular of valve ball ball interior Straight channel is connected;The sidewall of described Vertical Channel also has a through hole, through hole and another circle being positioned at ball surface The connection of shape through hole forms an interconnection, and interconnection is orthogonal with Vertical Channel.Broken line type water conservancy diversion at valve inner Cavity connects with valve ball spherome surface, and the position of water conservancy diversion cavity and the position of the manhole connected with interconnection are contrary.
Further, connect in one end of A valve port and have filling pipeline, during fueling, start valve handle, due to A Valve port is opened, and the pressure of the gases at high pressure being positioned at body base is released, and gases at high pressure release produces thrust, can promote Fuel enters from the C valve port being positioned at body base, then goes out from A valve port, enters in filling pipeline, now C valve port Do not connect with B valve port.Fill complete, valve handle is turned clockwise 90 °, the passage that C valve port and A valve port are formed Closing, the broken line type water conservancy diversion cavity that A valve port is formed with B valve port is connected, and is now placed in the high pressure gas at A valve port Body is discharged from B valve port again, and under the twitch of gases at high pressure, along with the movement of gases at high pressure, fueling is noted from A valve port again Enter in B valve port.Thus complete to the process of vehicle filling gaseous fuel.Broken line type water conservancy diversion cavity at valve inner changes Become original ball valve and may only enter medium, the structure that bottom goes out from side, made fluid media (medium) can enter bottom valve, side Going out, or make fluid media (medium) can enter from the side of side, the side of opposite side goes out.Each valve port can serve as imported valve Or outlet valve, share the pressure that valve is produced by fuel medium.And, moreover it is possible in the case of not changing valve direction, The fuel medium of more convenient transport different directions, the life-span of ball valve is significantly improved 3-5 times, greatly reduces into by this change This.Present disclosure additionally applies for environment under high pressure, because being provided with butterfly spring, pressure is less to the impulsive force of valve seat and joint, has The structures such as valve seat guide, O, valve seat O back-up ring, also cannot be easily caused gas and leak between joint and valve body, meanwhile, Because the decompression of butterfly spring, solve the ratio pressure between valve seat and valve ball bigger time so that valve handle operating handle is very Weight, the problem that the valve handle life-span is short.
Also including valve handle, be provided with pin on valve handle, pin diameter is spacing be positioned on valve body Hole size mates.Further, valve handle is provided with pin there is spacing effect, coordinated with spacing hole by pin Effect can confirm that whether valve handle has reached position of rotation accurately.
Also including valve rod, one end of valve rod is connected by interior hexagonal cylindrical end holding screw with valve handle, the other end with Valve ball in valve body connects.
Further, valve handle changes valve ball rotation direction by the rotation of interior hexagonal cylindrical end holding screw, Valve handle is connected with valve ball by valve rod and controls valve ball.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, one of the present invention is applicable to vehicular gaseous propellant filling ball valve, and ball surface is provided with two manholes, and two The passage that individual manhole is formed is orthogonal;Being additionally provided with a water conservancy diversion cavity inside valve ball, described water conservancy diversion cavity is The broken line shape of only one of which knuckle;Broken line type water conservancy diversion cavity at valve inner changes original ball valve may only be from side Enter medium, the structure that bottom goes out, make fluid media (medium) can enter bottom valve, side goes out, or makes the fluid media (medium) can be from side Side enter, the side of opposite side goes out.Each valve port can serve as imported valve or outlet valve, has shared fuel medium The pressure that valve is produced.And, moreover it is possible in the case of not changing valve direction, the fuel of more convenient transport different directions is situated between Matter, the life-span of ball valve is significantly improved 3-5 times, cost is greatly reduced by this change;
2, one of the present invention is applicable to vehicular gaseous propellant filling ball valve, because the decompression of butterfly spring, solves and works as valve seat And when ratio pressure between valve ball is bigger so that valve handle operating handle is the heaviest, the problem that the valve handle life-span is short.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of valve ball of the present invention;
Fig. 3 is filling process schematic diagram of the present invention;
Fig. 4 is discharge process schematic diagram of the present invention.
Labelling in accompanying drawing and the component names of correspondence:
1-valve body, 2-valve seat, 3-valve ball, 4-manhole, 5-water conservancy diversion cavity, 6-valve seat supports, 7-joint, 8-butterfly spring, 9-A valve port, 10-B valve port, 11-C valve port, 12-valve handle, 13-pin, 14-valve rod, hexagonal cylindrical end in 15- Holding screw.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make For limitation of the invention.
Embodiment 1:
One as shown in Figure 1, Figure 2, Figure 3, Figure 4 is applicable to vehicular gaseous propellant filling ball valve, including valve body 1, valve seat 2, It is internal that valve ball 3, valve seat 2 and valve ball 3 are positioned at valve body 1, has two manholes 4, two manholes 4 in valve ball 3 surface configuration The passage formed is orthogonal;Being additionally provided with a water conservancy diversion cavity 5 inside valve ball 3, described water conservancy diversion cavity 5 is only one of which The broken line shape of knuckle;Valve ball 3 is positioned at valve body 1 center, and valve ball 3 is connected with the valve seat 2 being positioned at spheroid both sides;In valve body 1 also Being provided with valve seat and support 6, valve seat supports 6 and is connected with valve seat 2, supports 6 at valve seat and goes back between the joint 7 of valve body 1 both sides It is provided with butterfly spring 8.
Being additionally provided with two valve ports of A, B at the joint 7 being positioned at valve body 1 both sides, A valve port 9 is with B valve port 10 respectively It is connected with two the runner holes being positioned at valve body.Be additionally provided with a C valve port 11 at body base, C valve port 11 be positioned at valve Valve ball 3 within body 1 is adjacent.Also include valve handle 12, valve handle 12 is provided with pin 13, pin 13 diameter Mate with the spacing hole size being positioned on valve body 1.Also including valve rod 14, one end of valve rod 14 and valve handle 12 are by interior hexagonal Cylinder end clamping fixed screw 15 connects, and the other end is connected with the valve ball 3 in valve body 1.
A kind of work process being applicable to vehicular gaseous propellant filling ball valve: connect in one end of A valve port 9 and have filling Pipeline, during fueling, starts valve handle 12, owing to A valve 9 is opened, is positioned at the pressure of gases at high pressure bottom valve body 1 Be released, gases at high pressure release produce thrust, fuel can be promoted to enter from the C valve port 11 being positioned at bottom valve body 1, then from A valve port 9 goes out, and enters in filling pipeline, and now C valve port 11 does not connects with B valve port 10.Fill complete, by valve hands Handle 12 turns clockwise 90 °, the pathway closure that C valve port 11 and A valve port 9 are formed, A valve port 9 and 10 shapes of B valve port The broken line type water conservancy diversion cavity 5 become is connected, and is now placed in the gases at high pressure at A valve port 9 and discharges from B valve port 10 again, Under the twitch of gases at high pressure, along with the movement of gases at high pressure, fueling is injected into B valve port 10 from A valve port 9 again.From And complete to the process of vehicle filling gaseous fuel.Original ball valve is changed at the broken line type water conservancy diversion cavity 5 within valve body 1 May only enter medium, the structure that bottom goes out from side, the life-span of ball valve is significantly improved 3-5 times, greatly reduces by this change Cost.Present disclosure additionally applies for environment under high pressure, because being provided with butterfly spring 8, pressure is to valve seat 2 and the impulsive force of joint 7 Less, also cannot be easily caused gas leakage between joint 7 and valve body 1, meanwhile, because the decompression of butterfly spring 8, solve and work as valve Seat 2 and valve ball 3 between ratio pressure bigger time so that valve handle 12 operating handle is the heaviest, the problem that valve handle 12 life-span is short.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise Within protection scope of the present invention.

Claims (5)

1. be applicable to a vehicular gaseous propellant filling ball valve, including valve body (1), valve seat (2), valve ball (3), valve seat (2) and It is internal that valve ball (3) is positioned at valve body (1), it is characterised in that has two manholes (4), two circles in valve ball (3) surface configuration The passage that through hole (4) is formed is orthogonal;It is additionally provided with a water conservancy diversion cavity (5), described water conservancy diversion cavity in valve ball (3) inside (5) it is the broken line shape of only one of which knuckle;Valve ball (3) is positioned at valve body (1) center, valve ball (3) and the valve being positioned at spheroid both sides Seat (2) connects;Being additionally provided with valve seat in valve body (1) and support (6), valve seat supports (6) and is connected with valve seat (2), supports at valve seat And be positioned between the joint (7) of valve body (1) both sides and be additionally provided with butterfly spring (8) (6).
One the most according to claim 1 is applicable to vehicular gaseous propellant filling ball valve, it is characterised in that be positioned at valve Be additionally provided with two valve ports of A, B in the joint (7) of body (1) both sides, A valve port (9) and B valve port (10) respectively be positioned at valve Two internal runner holes connect.
One the most according to claim 1 is applicable to vehicular gaseous propellant filling ball valve, is additionally provided with at body base Individual C valve port (11), C valve port (11) is adjacent with the valve ball (3) being positioned at valve body (1) inside.
One the most according to claim 1 is applicable to vehicular gaseous propellant filling ball valve, it is characterised in that also include valve Door handle (12), is provided with pin (13), pin (13) diameter and the limit being positioned on valve body (1) on valve handle (12) Position hole size coupling.
One the most according to claim 1 is applicable to vehicular gaseous propellant filling ball valve, it is characterised in that also include valve Bar (14), one end of valve rod (14) and valve handle (12) be connected by interior hexagonal cylindrical end holding screw (15), the other end and Valve ball (3) in valve body (1) connects.
CN201610909786.8A 2016-10-19 2016-10-19 One is applicable to vehicular gaseous propellant filling ball valve Pending CN106286878A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610909786.8A CN106286878A (en) 2016-10-19 2016-10-19 One is applicable to vehicular gaseous propellant filling ball valve
PCT/CN2017/090704 WO2018072467A1 (en) 2016-10-19 2017-06-29 Ball valve applicable to vehicle gas fuel dispensing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610909786.8A CN106286878A (en) 2016-10-19 2016-10-19 One is applicable to vehicular gaseous propellant filling ball valve

Publications (1)

Publication Number Publication Date
CN106286878A true CN106286878A (en) 2017-01-04

Family

ID=57718929

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610909786.8A Pending CN106286878A (en) 2016-10-19 2016-10-19 One is applicable to vehicular gaseous propellant filling ball valve

Country Status (2)

Country Link
CN (1) CN106286878A (en)
WO (1) WO2018072467A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018072467A1 (en) * 2016-10-19 2018-04-26 赛洛克流体设备成都有限公司 Ball valve applicable to vehicle gas fuel dispensing
CN117028835A (en) * 2023-08-08 2023-11-10 广东尧邦环保科技有限公司 LNG sled dress air feed equipment

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112923091A (en) * 2021-02-08 2021-06-08 新疆八一钢铁股份有限公司 Multi-flow regulating ball valve
CN114263758B (en) * 2021-12-28 2024-04-16 青岛市水利勘测设计研究院有限公司 Water-saving valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6273134B1 (en) * 1999-11-01 2001-08-14 Barnstead/Thermolyne Corporation Sterilizer valve
CN202834208U (en) * 2012-08-31 2013-03-27 重庆希克工业自动化设备有限公司 Two-position three-way ball valve
CN203374958U (en) * 2013-06-24 2014-01-01 河南航天液压气动技术有限公司 Two-position three-way ball valve
CN204004574U (en) * 2014-08-05 2014-12-10 江苏科维仪表控制工程有限公司 Gudgeon ball valve
CN204573164U (en) * 2015-03-31 2015-08-19 瑞立集团瑞安汽车零部件有限公司 A kind of ball-type cock
CN106286901A (en) * 2016-08-29 2017-01-04 赛洛克流体设备成都有限公司 A kind of long service life tee ball valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195341A (en) * 2016-08-29 2016-12-07 赛洛克流体设备成都有限公司 A kind of tee ball valve of replaceable black box
CN106286878A (en) * 2016-10-19 2017-01-04 赛洛克流体设备成都有限公司 One is applicable to vehicular gaseous propellant filling ball valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6273134B1 (en) * 1999-11-01 2001-08-14 Barnstead/Thermolyne Corporation Sterilizer valve
CN202834208U (en) * 2012-08-31 2013-03-27 重庆希克工业自动化设备有限公司 Two-position three-way ball valve
CN203374958U (en) * 2013-06-24 2014-01-01 河南航天液压气动技术有限公司 Two-position three-way ball valve
CN204004574U (en) * 2014-08-05 2014-12-10 江苏科维仪表控制工程有限公司 Gudgeon ball valve
CN204573164U (en) * 2015-03-31 2015-08-19 瑞立集团瑞安汽车零部件有限公司 A kind of ball-type cock
CN106286901A (en) * 2016-08-29 2017-01-04 赛洛克流体设备成都有限公司 A kind of long service life tee ball valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018072467A1 (en) * 2016-10-19 2018-04-26 赛洛克流体设备成都有限公司 Ball valve applicable to vehicle gas fuel dispensing
CN117028835A (en) * 2023-08-08 2023-11-10 广东尧邦环保科技有限公司 LNG sled dress air feed equipment
CN117028835B (en) * 2023-08-08 2024-04-19 广东尧邦环保科技有限公司 LNG sled dress air feed equipment

Also Published As

Publication number Publication date
WO2018072467A1 (en) 2018-04-26

Similar Documents

Publication Publication Date Title
CN106286878A (en) One is applicable to vehicular gaseous propellant filling ball valve
CN101566263B (en) Pigging object emitter
CN203770789U (en) Break away coupling valve
CN102818043A (en) Low-temperature ball valve
CN202674421U (en) Gas cylinder for high-purity gas
CN102606108A (en) Pitching pressure-out opening oil tube constant-pressure floating valve
WO2006096819A3 (en) Universal gas valve finishing flange assembly
CN201909031U (en) Conveying plug, sealing system including same, and conveying plug sleeve
CN105351573A (en) Self-sealing swing flexible-sealing check valve
CN205446787U (en) Novel ball valve closure member reaches spherical monocline welding seam all -welded ball valve who contains it
CN201412558Y (en) Anti-mixing tank bottom valve
JP2009019719A (en) Liquified petroleum gas filling device and liquified petroleum gas filling method
CN205118345U (en) Formula soft seal check valve is opened soon in self sealss
CN102705617B (en) Combined dry self-sealing joint for oil equipment
CN101514754B (en) Integral non-retention multipath control ball valve
CN206072452U (en) Modified tire pressure gun gaseous core structure
CN101545548B (en) A bottom valve of mix-proof tank
CN103672141A (en) Novel air-inflation-preventing gas valve
CN102207203B (en) Pressure vessel valve suitable for automatic locking
KR101351563B1 (en) Receptacle of automobile gas feeding system
CN103363136B (en) A kind of external anti-dumping pressure control valve
CN202176310U (en) Built-in sleeve floating hoop
CN208057557U (en) A kind of prefill valve of extruder
CN104373077A (en) Oil well sampling device
CN203571300U (en) Overall dismantling prevention pressure gauge connector

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170104

RJ01 Rejection of invention patent application after publication