CN201909045U

CN201909045U - Gas cylinder valve

Info

Publication number: CN201909045U
Application number: CN2010206133451U
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: 2011-07-27
Anticipated expiration: 2020-11-18

Abstract

The utility model relates to a gas cylinder valve which comprises a valve body with an upper opening and a lower opening. The two openings are communicated thereby forming a pipe line for gas circulation. The lower end of the gas cylinder valve is provided with a bottle connection end which is used for connecting with a gas cylinder. A guide sleeve is slidably equipped in the pipe line at the upper end of the valve body along the direction of the pipe line. The guide sleeve is provided with an air channel for gas circulation. The bottom of the air channel is provided with a valve port filtering device. A reversed T-shaped valve stem is downwards provided at the valve port filtering device. A conical seal cover is sleeved on the reversed T-shaped valve stem. The conical seal cover is closely matched with a conical side wall of the pipe line at a corresponding position. An axial spring which is used for upwards abutting against the reversed T-shaped valve stem is downwards provided between the reversed T-shaped valve stem and the valve body through a spacing structure with an abutment-against mode. The lower end of the valve body is provided with a bottle opening filtering device. As a conical-surface sealing structure is adopted, the gas cylinder valve has the following advantages: good sealing effect, no abrasion, and ensured filtering effect in inflation and ventilation as the filtering device is respectively provided at the valve opening and the bottle opening.

Description

Cylinder valve

Technical field

The utility model relates to a kind of quick cylinder valve on the gas cylinder mouth of being 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, backs down valve port with thimble when needs inflation, venting.But existing cylinder valve is simple in structure, and sealing configuration adopts the end face seal mode more, the not good and easy wearing and tearing of sealing effect; Lack filtrating equipment, the impurity in the gas stops up, corrodes sealing configuration easily, reduces the safe in utilization and life-span of cylinder valve.

The model utility content

The purpose of this utility model provides a kind of cylinder valve, in order to solve the problem that the prior art sealing effect is bad, lack filtrating equipment.

For achieving the above object, scheme of the present utility model is: 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, described valve port filtrating equipment top is downwards established an inverted T shape valve rod, be arranged with cone-shaped sealed gland on the inverted T shape valve rod, the pipeline tapered sidewalls of described cone-shaped sealed gland and corresponding position closely cooperates, described 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 by a limit structure, and described valve body lower end portion is equipped with the bottleneck filtrating equipment.

Cylinder valve of the present utility model 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 the filtering effect of inflation and venting.

The described inverted T shape valve rod head nut that has been threaded, described axle spring top be contained in described 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 utility model;

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

The utility model is described in more detail below in conjunction with accompanying drawing.

Cylinder valve shown in Fig. 1-4, its hollow valve body both ends open communicates and forms the pipeline of gas communication, 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 and are fixed on guide holder 22 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 is mobile 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, be 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, described valve port filtrating equipment top is downwards established an inverted T shape valve rod, be arranged with cone-shaped sealed gland on the inverted T shape valve rod, the pipeline tapered sidewalls of described cone-shaped sealed gland and corresponding position closely cooperates, described 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 by a limit structure, and described valve body lower end portion is equipped with the bottleneck filtrating equipment.

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