CN1363792A

CN1363792A - Valve

Info

Publication number: CN1363792A
Application number: CN 02113376
Authority: CN
Inventors: 张剑
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-10
Filing date: 2002-02-10
Publication date: 2002-08-14

Abstract

A valve is composed of valve seat and valve body. Said valve seat has cylindrical upper part, in which there is a control rod moving up and down in valve seat. Said valve body has an upper control knob, in which there is a push rod. Its advantages are no contact of its control screw with liquid or gas, no corrosion, and commor use for motor steel cylinders.

Description

A kind of valve

The present invention relates to a kind of valve, concretely, be applicable to pressurized container, steel cylinder, high, medium and low pressure tube road.

Pressurized container and steel cylinder are the instruments of transportation, stored-gas and liquid, and its application area is quite extensive.The Safety performance of pressurized container and steel cylinder is an important index very, comprises resistance to compression and anti-leak, especially for poisonous and harmful and corrosive liquid, gas, must solve the problem of this two aspect.The pressurized container of present stage and steel cylinder have all well solved the problems referred to above during fabrication on body.But, the pressurized container of present stage also has the following disadvantages with the valve mechanism of steel cylinder: the one, and the screw thread of liquid, gas channel and valve body links to each other, and corrosive liquid, gas can corrode screw thread, make valve to operate, cause leakage, this also is the main cause that a large amount of dead valves form; There is the screw thread etching problem too in some pressure pipings; The 2nd, each pressurized container all has complete valve body, has improved manufacture cost so on the one hand, has formed a weak link in addition in transportation process, has only to add protective housing again, is not easy to operation again.

The purpose of this invention is to provide a kind of valve that is applied in the pressurized container, the control screw thread of this valve discord liquid, gas contact, and valve body can a plurality of pressurized containers and steel cylinder shared, protective housing need be set yet.

The object of the present invention is achieved like this: a kind of valve, it is characterized in that: valve seat and valve body are set, valve seat is fixed on the pressurized container body, periphery, valve seat upper end is cylindric, be combined with controlling rod in it, controlling rod can move up and down in valve seat, between controlling rod and the periphery, valve seat upper end passage is arranged, and the passage lower ending opening is in the peripheral madial wall in valve seat upper end; The controlling rod lower end is a plug, and the valve seat lower end is a suction chamber, and suction port is arranged on the suction chamber, is provided with Returnning spring between suction chamber lower end and plug; The valve body upper end is peripheral to have push rod for controlling turn-knob in the control turn-knob, and push rod and control turn-knob inwall are screw-thread fit, push rod lower end touch controls bar upper end; Air chamber is arranged in the valve body, and air chamber and passage communicate, and air chamber is opened on outside the valve, pass through scyewed joint between valve seat and the valve body.

Described a kind of valve is characterized in that: the opening of air chamber can directly be opened at body wall, also can lead to the valve body upper end by the through hole in the push rod.

Described a kind of valve is characterized in that: the means of fixation of valve seat and pressurized container body can be a scyewed joint, and flange connects or welding.

The control screw thread of valve provided by the invention discord liquid, gas contact, corrosive liquid, gas can not corrode screw thread, thus to have avoided be the generation of dead valve; And valve body is can a plurality of steel cylinders shared, also protective housing need be set.This just greatly reduces the user cost and the wasting of resources.

Below in conjunction with accompanying drawing, the present invention is further described by embodiment:

Fig. 1 is the structural representation of the embodiment of the invention 1;

Fig. 2 is the A-A view of Fig. 1;

Fig. 3 is the B-B view of Fig. 1;

Fig. 4 is the C-C view of Fig. 1;

Fig. 5 is the transport state schematic representation of the embodiment of the invention 1;

Fig. 6 is the structural representation of the embodiment of the invention 2;

Embodiment 1:

A kind of valve, comprise valve seat 1 and valve body 2, valve seat 1 is fixed on the pressurized container body 3, valve seat 1 upper end peripheral 4 is cylindric, be combined with controlling rod 5 in it, controlling rod 5 can move up and down in valve seat 1, between controlling rod 5 and the periphery, valve seat 1 upper end 4 passage 6 is arranged, and passage 6 lower ending openings are peripheral 4 madial walls in valve seat 1 upper end; Controlling rod 5 lower ends are plug 7, and valve seat 1 lower end is a suction chamber 8, and suction port 9 is arranged on the suction chamber 8, are provided with Returnning spring 10 between suction chamber 8 lower ends and plug 7; Valve body 2 upper ends are peripheral to have push rod 12 for controlling turn-knob 11 in the control turn-knob 11, and push rod 12 and control turn-knob 11 inwalls are screw-thread fit, push rod 12 lower end touch controls bars 5 upper ends; Air chamber 13 is arranged in the valve body 2, and air chamber 13 and passage 6 communicate, and air chamber 13 has opening 14 outside valve, pass through scyewed joint between valve seat 1 and the valve body 2.15 is rotating carrier, and 16 is ball.

Steel cylinder producer can design valve seat 1 in advance and produce in gas cylinder body 3, and screws on blind nut 14, just can need not protective housing is set and transports safely; Screw off blind nut 14 during use again, screw on valve body 2, because at this moment valve seat 1 is a normally off, this process can not leaked by direct control, after installing, connects use equipment in opening 14 upper connecting tube roads.

Spin Control turn-knob 11, at this moment controlling turn-knob 11 just rotates on rotating carrier 15 by ball 16, and push rod 12 being moved down by threaded function, the elastic force that push rod 12 will make controlling rod 5 overcome Returnning spring 10 moves down, when controlling rod 12 moves down into certain stroke, the sidewall opening of passage 6 will be exposed in the suction chamber 8, at this moment the pressed gas in the steel cylinder will pass through suction port 9, suction chamber 8, passage 6, air chamber 13, opening 14 is to extraneous use equipment.

When needs are closed, counterrotating control turn-knob 11, at this moment control turn-knob 11 just by ball 16 backward rotation on rotating carrier 15, and push rod 12 is moved up by threaded function, controlling rod 5 will move up under the resilient force of Returnning spring 10, the sidewall opening of the passage 6 contact sidewall that will rise, thus closed valve.

On sealing configuration, can adopt filler 19 to seal between air chamber 13 and the push rod 12 at this raft door; Scyewed joint between valve seat 1 and the valve body 2 can use packing ring 20 to seal; When adopting flange to connect between valve seat 1 and the vessel 3, between can adopt pad to seal; Can use packing ring 21 to seal on the plug 7.

Embodiment 2:

Main structure is with embodiment 1, difference is to be provided with through hole 17 in push rod 12, through hole 17 lower ending openings are in air chamber 13, upper end open is outside valve body 2, the purpose of An Zhuaning is can screw on barometer 18 in valve body 2 upper ends like this, and pressurized container and the steel cylinder air pressure in it after unlatching can reflect on barometer 18 intuitively.Valve body 2 and barometer 18 have just constituted a dismountable convenient barometer assembly that uses like this.

Claims

1, a kind of valve, it is characterized in that: valve seat and valve body are set, valve seat is fixed on the pressurized container body, periphery, valve seat upper end is cylindric, be combined with controlling rod in it, controlling rod can move up and down in valve seat, between controlling rod and the periphery, valve seat upper end passage is arranged, and the passage lower ending opening is in the peripheral madial wall in valve seat upper end; The controlling rod lower end is a plug, and the valve seat lower end is a suction chamber, and suction port is arranged on the suction chamber, is provided with Returnning spring between suction chamber lower end and plug; The valve body upper end is peripheral to have push rod for controlling turn-knob in the control turn-knob, and push rod and control turn-knob inwall are screw-thread fit, push rod lower end touch controls bar upper end; Air chamber is arranged in the valve body, and air chamber and passage communicate, and air chamber is opened on outside the valve, pass through scyewed joint between valve seat and the valve body.

2, a kind of valve as claimed in claim 1 is characterized in that: the opening of air chamber can directly be opened at body wall, also can lead to the valve body upper end by the through hole in the push rod.

3, a kind of valve as claimed in claim 1 or 2 is characterized in that: the means of fixation of valve seat and pressurized container body can be a scyewed joint, and flange connects or welding.