Vice-valve installed in the main valve side or both sides of the flap valve and the screw connection, the normal flow of media, the valve is opened, the medium pressure valve is opened by the Deputy, the medium through the valve hole into the main Double Door Check Valves, Air Cushion valve, Vice export side, so that the main valve inlet end of relief, the main valve valve flap to open, the main valve before and after the pressure balance; medium counter-current, the main valve valve valve in the counterflow medium under the action of fast closed, and the deputy valve body upper part of the buffer tank, the Deputy valve valve cap screwed the upper part of his body covered with a small hole, the Deputy valve valve valve with the piston rod sets have a certain air gap between the piston and the buffer cylinder with rubber O-ring seal, the piston and the valve flap between the lower-dimensional seal; as Vice-valve With the main valve valve valve valve valve was closed, because of Vice-valve valve cover the role of holes, the medium gradually flows through the small hole on the Vice-valve cylinder cushion cavity, part of the media, through the Deputy valve valve flap and the gap between the piston rod reflux, it is slow, Vice valve piston closed.
副阀安 装在主阀阀瓣下侧或两侧且用螺纹联接，介质正常流动阀门开启时，介质压力将副阀打开，介质通过副阀小孔流入主阀出口端，使主阀进水口端卸压，主阀阀瓣开启，主阀前后压力趋于平衡；介质逆流时，主阀阀瓣在逆流介质作用下快速关闭，而副阀阀体上部为缓冲缸，副阀阀盖旋入阀体上部其盖上有一小孔，副阀阀瓣与其活塞杆空套有一定间隙，活塞与缓冲缸之间采用O型橡胶圈密封，活塞下部与阀瓣之间为平面密封；当副阀阀瓣随主阀阀瓣关闭而关闭时，因副阀阀盖小孔的作用，介质通过小孔逐渐流入副阀缓冲缸上腔体，一部分介质通过副阀阀瓣与活塞杆之间的间隙倒流，故副阀活塞是缓慢关闭的。
Oil pan, Oil Pipe, Rubber Hose, Water tube, Valve Seal, Washer, Waterproof ring, Stop-Ring, Dustproof cover, Ripple tube, Bonded seals, Seal cover, Seal holder, Bearing sleeve, Handle, Bushing, Bushing Block, Pad, Gasket, Rubber Spring Gasket, Boot, Blade, Socket, Grommet, Nut, Clip, Housing, Gauze, Dust cap, Buffer block, Isolation block, Piston, Piston ring, Strainer, Rotary seal, Frictional damping washer, Combination Seal Gasket, Axis guide, Water blocking, Torque core, Repair kits, Hydraulic Seal, Engine Seal, Engine Mount, Seal Circle, Spring(Compression spring, Tension spring, Disc spring), Compressor parts, Brake parts, Air valve parts, Rubber mountings, Strut mount, Control arm mount, Connecting rod, Control Arm Mount, Full Set Repair Kit, Asbestos pad, non-asbestos pad, Casting aluminium, Casting copper, Casting steel, and other relative product etc, .
本厂主要产品包括油封(气门油封、骨架油封、铁壳油封、浮动油封、同步油封、异型油封)、密封圈(O型密封圈、U型密封圈、Y型密封圈、X型密封圈、W型密封圈、V型密封圈、L型密封圈、星型密封圈)、油管、水管、水封、摇把、把手、拉手、胶碗、垫片、平垫、纸垫、组合垫、牛筋垫、牛津圈、密封垫、垫圈、档圈、格莱圈、牛筋圈、防水圈、防尘圈、防尘罩、防尘套、轴套、衬套、卡套、平叉套、缓冲套、锥形套、活塞、活塞环、支承环、导向环、导向带、缓冲套、缓冲垫、缓冲圈、缓冲块、隔振块、减震块、油底壳、滤网、呼吸片、伐片、叶片、起动绳、机轮爪、六角密封圈、导承圈、密封涨圈、纸垫、石棉垫、非石棉垫、弹簧等橡胶塑料制品以及铜、铁、铝、粉末冶金等冲压和铸造件。
Oil pan, Oil Pipe, Rubber Hose, Water tube, Valve Seal, Washer, Waterproof ring, Stop-Ring, Dustproof cover, Ripple tube, Bonded seals, Seal cover, Seal holder, Bearing sleeve, Handle, Bushing, Bushing Block, Pad, Gasket, Rubber Spring Gasket, Boot, Blade, Socket, Grommet, Nut, Clip, Housing, Gauze, Dust cap, Buffer block, Isolation block, Piston, Piston ring, Strainer, Rotary seal, Frictional damping washer, Combination Seal Gasket, Axis guide, Water blocking, Torque core, Repair kits, Hydraulic Seal, Engine Seal, Engine Mount, Seal Circle, Spring(Compression spring, Tension spring, Disc spring), Compressor parts, Brake parts, Air valve parts, Rubber mountings, Strut mount, Control arm mount, Connecting rod, Control Arm Mount, Full Set Repair Kit, Casting aluminium, Casting copper, Casting steel, and other relative product etc, .
本厂主要产品包括油封(气门油封、骨架油封、铁壳油封、浮动油封、同步油封、异型油封)、密封圈(O型密封圈、U型密封圈、Y型密封圈、X型密封圈、W型密封圈、V型密封圈、L型密封圈、星型密封圈)、密封条、油管、水管、水封、拉手、胶碗、垫片、平垫、组合垫、牛筋垫、牛津圈、密封垫、垫圈、档圈、牛筋圈、防水圈、防尘圈、防尘罩、防尘套、轴套、衬套、卡套、平叉套、缓冲套、锥形套、活塞、活塞环、支承环、导向环、导向带、缓冲套、缓冲垫、缓冲圈、缓冲块、隔振块、减震块、油底壳、滤网、呼吸片、伐片、叶片、起动绳、机轮爪、六角密封圈、导承圈、密封涨圈、纸垫、石棉垫、非石棉垫等橡胶塑料制品以及铜、铁、铝、粉末冶金等冲压和铸造件。
In 0.1 mol/L HCl media, CAP undergoes an irreversible 6-electron transfer, corresponding to reduction of the nitro group to amine. While in 〓 buffer solution (pH8.0), CAP is reduced irreversibly to NHOH-CAP at negative potential. Subsequently, a new redox-active species is formed at more positive potentials, which has been identified as the NHOH-CAP/NO-CAP couple.
结果表明，在0.1mol/L HCl介质中，CAP分子中的-〓基发生不可逆还原，生成氨基衍生物〓-CAP；在pH80的氨性缓冲液中，CAP先经不可逆反应生成羟氨基衍生物NHOH-CAP，后者在较正电位下被氧化成NO-CAP，并形成可逆的〓氧化还原电对NO-CAP/NHOH-CAP。
The utility model is the cap which adds an earthquake prevention buffer of one circle (intermittent circle) to the circumference of the lower side of the cap.
“儿童学步帽”就是在帽的下边周围加装一圈（或断续一圈）防震缓冲垫。