CN102032441B

CN102032441B - Cylinder valve

Info

Publication number: CN102032441B
Application number: CN201010549387A
Authority: CN
Inventors: 雷晓峰; 石文星; 秦平; 陈青山
Original assignee: Cama Luoyang Gas Supply Co ltd
Current assignee: Cama Luoyang Gas Supply Co ltd
Priority date: 2010-11-18
Filing date: 2010-11-18
Publication date: 2012-08-29
Anticipated expiration: 2030-11-18
Also published as: CN102032441A

Abstract

The invention relates to a cylinder valve which comprises a valve body with an upper opening and a lower opening, wherein the two openings are communicated to form a gas circulating pipeline, the lower end of the pipeline is provided with a cylinder receiving end used for connecting a cylinder; a guide sleeve is assembled in the pipeline at the upper end of the valve body in a sliding manner along the pipeline direction, a gas channel for circulating the gas is arranged on the guide sleeve, the bottom of the air channel is provided with a valve opening filtering device, a reverse T-shaped valve rod is downwards arranged on the valve opening filtering device in a supporting manner, a tapered sealing sleeve is sleeved on the reverse T-shaped valve rod and closely matched with the tapered side wall of the pipeline at the corresponding position, the reverse T-shaped valve rod is downwards provided with an axial spring is downwards arranged between the reverse T-shaped valve rod and the valve body in a supporting manner through a limit structure, the axial spring is used for upwards pushing the reverse T-shaped valve rod, and the lower end part of the valve body is assembled with a cylinder opening filtering device. By adopting the conical surface sealing structure, the cylinder valve has good sealing effect, is difficult to wear, and ensures the filtering effect of charging and discharging because the filtering devices are arranged at the valve openings and the cylinder opening.

Description

A kind of cylinder valve

Technical field

The present invention relates to a kind of quick cylinder valve on the gas cylinder mouth that is installed in that can realize high pressure, air flow.

Background technique

Cylinder valve generally is installed on the gas cylinder mouths such as gas cylinder, oxygen cylinder, and at devices such as valve port portion installation thimbles, when needs inflation, venting, backs down valve port with thimble.But existing cylinder valve is simple in structure, and sealing configuration adopts the end face seal mode more, the not good and easy abrasion of sealing effect; Lack filtrating equipment, IMPURITIES IN easy blocking, corrosion sealing configuration, the safe in utilization and life-span of reducing cylinder valve.

Summary of the invention

The purpose of this invention is to provide a kind of cylinder valve, in order to solve the problem that the existing technology sealing effect is bad, lack filtrating equipment.

For realizing above-mentioned purpose, scheme of the present invention is: a kind of cylinder valve, comprise having the valve body of both ends open up and down, and two openings communicate and form the pipeline of gas communication, and the lower end is bottle end that connects that is used to connect gas cylinder; In the pipeline of valve body upper end along guide pin bushing of pipeline direction slidable fit; Guide pin bushing is provided with the air flue of circulated gases; The air flue bottom is provided with the valve port filtrating equipment; Said valve port filtrating equipment top is downwards established an inverted T shape valve rod, is arranged with cone-shaped sealed gland on the inverted T shape valve rod, and the pipeline tapered sidewalls of said cone-shaped sealed gland and corresponding position closely cooperates; Said inverted T shape valve rod is top-loaded with the axle spring that is used for upwards holding out against the inverted T shape valve rod downwards and between the valve body through a limit structure, and said valve body lower end portion is equipped with the bottleneck filtrating equipment.

Cylinder valve of the present invention adopts the conical surface seal structure, good sealing effect not only, and be not afraid of wearing and tearing, and at valve port and bottleneck filtrating equipment is arranged all, guaranteed inflation and the filtering effect of exitting.

The said inverted T shape valve rod head nut that has been threaded, said axle spring top be contained in said nut and nut below valve interior wall on the step surface on the valve body.

Description of drawings

Fig. 1 is overall structure figure of the present invention;

Fig. 2 is the structural drawing of valve port end;

Fig. 3 is the structural drawing of valve rod;

Fig. 4 is and solenoid valve, gas cylinder assembly structure figure.

Embodiment

Below in conjunction with accompanying drawing the present invention is done further detailed explanation.

Cylinder valve shown in Fig. 1-4, its hollow valve body both ends open communicate and form the pipeline of gas communication, and the upper end is the valve port end; Hold for the bottle that connects that is communicated with gas cylinder 32 lower end, along pipeline bearing of trend slidable fit a guide pin bushing 2 is arranged in the pipeline of valve body upper end, and the air flue of circulated gases is arranged on the guide pin bushing 2; The bottom valve port filtrating equipment 3 that is connected; An inverted T shape valve rod 9 is established on valve port filtrating equipment 3 top, and inverted T shape valve rod 9 bottoms are arranged with cone-shaped sealed gland 23, closely cooperates with the pipeline sidewall of corresponding position; The valve body lower end portion of valve rod below 9 is equipped with bottleneck filtrating equipment 4.Inverted T shape valve rod 9 head threads are connected with nut 6, and the valve interior wall of nut 6 belows is provided with limit dais terrace up, are provided with spring 8 between nut 6 and this limit dais terrace.

Cone-shaped sealed gland 23 tops also are arranged with pin 21 guide holders 22 that are fixed on the valve rod 9, and the sealed step face towards the valve port end is arranged on the guide holder 22, when valve rod 9 in the raw, the sealed step face is more than conical pipe trackside wall, the gas passageway is by isolated; When valve rod 9 moves down mutually, drive guide holder 22 and move downward, as long as the sealed step face of guide holder 22 moves to pipeline tapered sidewalls part, the gas in the whole valve body will be communicated with.

The valve port end internal thread of valve body connects a sleeve 1, and sleeve 1 inwardly is provided with first back-up ring 11, first seal ring 12, second back-up ring, 13, the second back-up rings 13 and sleeve 1 inwall interference fit successively.

As shown in Figure 4, the valve port end outside of valve body is provided with screw thread, is used for docking assembling with solenoid valve 30; During use, the contact pin 31 of solenoid valve 30 inserts valve port, and roof pressure guide pin bushing 2 and then drive valve port filtrating equipment 3, valve rod 9 move downward together; Extrusion spring 8; Make the sealed step face of above-mentioned guide holder 22 move down into the tapered sidewalls part, the conducting of valve body gas circuit can be exitted or inflation work.Piston body 2 bottoms are provided with valve port filtrating equipment 3, and bottle mouth position is provided with bottleneck filtrating equipment 4, adopt this double medium filtration mode, can significantly improve filtering effect.

Claims

1. a cylinder valve is characterized in that, comprises having the valve body of both ends open up and down, and two openings communicate and form the pipeline of gas communication, and the lower end is bottle end that connects that is used to connect gas cylinder; In the pipeline of valve body upper end along guide pin bushing of pipeline direction slidable fit; Guide pin bushing is provided with the air flue of circulated gases; The air flue bottom is provided with the valve port filtrating equipment; Said valve port filtrating equipment top is downwards established an inverted T shape valve rod, is arranged with cone-shaped sealed gland on the inverted T shape valve rod, and the pipeline tapered sidewalls of said cone-shaped sealed gland and corresponding position closely cooperates; Said inverted T shape valve rod is top-loaded with the axle spring that is used for upwards holding out against the inverted T shape valve rod downwards and between the valve body through a limit structure, and said valve body lower end portion is equipped with the bottleneck filtrating equipment; Said guide pin bushing top has and is used for the guide pin bushing roof pressure face that cooperates with the contact pin roof pressure, and is distributed in through hole around the guide pin bushing roof pressure face, that be connected with said air flue; Said valve port filtrating equipment has and is used for the valve port filtrating equipment roof pressure face that cooperates with inverted T shape valve rod roof pressure, and the through hole that is distributed in around the valve port filtrating equipment roof pressure face, is communicated with said air flue.

2. a kind of cylinder valve according to claim 1 is characterized in that, the said inverted T shape valve rod head nut that has been threaded, said axle spring top be contained in said nut and nut below valve interior wall on the step surface on the valve body.