CN208579007U - A kind of pressure maintaining valve - Google Patents

Abstract

The utility model discloses a kind of pressure maintaining valves, including valve body, at least two air inlet pipe, escape pipe, pressure maintaining valve, escape pipe is located on valve body, at least two air inlet pipe are located on valve body, to during installation, make the option of pipeline selection air inlet pipe increase, so as to be easier to select corresponding air inlet pipe to be installed.Then it is mutually perpendicular to by two air inlet pipe, the axis coaxle of the axis of escape pipe and one of air inlet pipe, to make pipeline during installation, in the angular range that angle between two pipelines is 180 degree to 45 degree, first escape pipe and a wherein root canal road are installed, then the drift angle between an air inlet pipe and another root canal road can be found less than 45 degree, so that the pipeline be made only to need to be deviated and can be installed on pressure maintaining valve.Compared with the existing technology, the competitiveness in market is increased.

Description

A kind of pressure maintaining valve

Technical field

The utility model relates to valve field, especially a kind of pressure maintaining valve.

Background technique

Pressure maintaining valve is a kind of nowadays very common valve, existing pressure maintaining valve be all in structure only comprising one into Tracheae and an escape pipe, as shown in Figure 1, and air inlet pipe and an air outlet pipe it is mostly in terms of arrangement be linearly to arrange, however pipeline Arrangement be that there is the case where probabilistic, often to will appear valve and be set to corner, or special angle arrangement is presented, And existing pressure maintaining valve is difficult to look after these positions in installation, needs to change by other pipe fittings the direction of pipeline, or Pipeline is truncated, pressure maintaining valve is then set to the truncated position, the pipeline arrangement made cannot carry out cloth by optimal arrangement It sets.

Utility model content

In order to solve the above technical problems, can more preferably be installed on different angles the purpose of this utility model is to provide a kind of Pressure maintaining valve between two root canal roads.

Used technical solution is the utility model to solve above-mentioned technical problem:

A kind of pressure maintaining valve, comprising:

Valve body, the interior valve body includes a valve chamber；

At least two air inlet pipe, air inlet pipe are located on the valve body, and the air inlet pipe is connected with valve chamber, the air inlet pipe For air inlet；

Escape pipe, the escape pipe are located on the valve body, and the escape pipe is connected with the valve chamber；

Stabipack, the stabipack are located in valve body, and the stabipack is for stablizing the gas flowed into valve chamber Pressure.

As a further improvement of the above technical scheme, the air inlet pipe is two, and two air inlet pipe are mutually perpendicular to.

As a further improvement of the above technical scheme, the axis of the escape pipe and the axis of one of air inlet pipe are same Axis.

The utility model has the beneficial effects that by being provided at least two air inlet pipe on valve body, to during installation, make Pipeline selects the option of air inlet pipe to increase, so as to be easier to select corresponding air inlet pipe to be installed.

Then it is mutually perpendicular to by two air inlet pipe, the axis coaxle of the axis of escape pipe and one of air inlet pipe, from And make pipeline during installation, in the angular range that the angle between two pipelines is 180 degree to 45 degree, first by escape pipe with Wherein a root canal road installs, and then can find the drift angle between an air inlet pipe and another root canal road less than 45 degree, thus The pipeline is set only to need to be deviated and can be installed on pressure maintaining valve.Compared with the existing technology, the competing of market is increased Strive power.

Detailed description of the invention

Explanation and specific embodiment are further explained explanation to the utility model with reference to the accompanying drawing.

Fig. 1 is the structural schematic diagram of prior art；

Fig. 2 is the structural schematic diagram of the utility model preferred embodiment；

Fig. 3 is the direction the A-A cross-sectional structure schematic diagram of Fig. 1.

Specific embodiment

Referring to figs. 1 to Fig. 3, a kind of pressure maintaining valve, comprising: valve body 10, the interior valve body 10 includes a valve chamber；At least two A air inlet pipe 20, air inlet pipe 20 are located on the valve body 10, and the air inlet pipe 20 is connected with valve chamber, and the air inlet pipe 20 is used In air inlet；Escape pipe 30, the escape pipe 30 are located on the valve body 10, and the escape pipe 30 is connected with the valve chamber；Surely Component 40 is pressed, the stabipack 40 is located in valve body 10, and the stabipack 40 is for stablizing the gas flowed into valve chamber Pressure.

In view of the complexity of manufacture, the air inlet pipe 20 is preferably two, and two air inlet pipe 20 are mutually perpendicular to.Further It is preferred that the axis coaxle of the axis of the escape pipe 30 and one of air inlet pipe 20.

It is especially in the majority between 45-180 degree since the angle between two root canal roads is mostly between 0-180 degree, pass through The utility model can find an air inlet pipe 20, make itself and another when being connected to escape pipe 30 on a wherein root canal road Angle between pipeline is less than 45 degree, so that another root canal road be made only to need the resilient bias one slightly by pipeline itself Under, it can it is connected with air inlet pipe 20, is then blocked another air inlet pipe 20 by an end cap, for preventing Gas lets out from another air inlet pipe 20.Uncertainty when to effectively prevent because of pipe arrangement, leads to nothing Method preferably installs pressure maintaining valve.

And the utility model can also utilize on the instrument of two kinds of gas in need, pass through two air inlet connections two Kind gas, right latter two gas mix in valve chamber, and by stabipack 40, keep the pressure of the gas of output relatively stable, Or two different gases are successively conveyed, without ceaselessly being replaced to two kinds of gases.

The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all Under the utility model design of the utility model, equivalent structure made based on the specification and figures of the utility model becomes It changes, is similarly included in other related technical fields in the scope of patent protection for being included in the utility model.

Claims (3)

1. a kind of pressure maintaining valve characterized by comprising

Valve body (10), the interior valve body (10) includes a valve chamber；

At least two air inlet pipe (20), air inlet pipe (20) are located on the valve body (10), and the air inlet pipe (20) is connected with valve chamber Logical, the air inlet pipe (20) is used for air inlet；

Escape pipe (30), the escape pipe (30) are located on the valve body (10), and the escape pipe (30) is connected with the valve chamber It is logical；

Stabipack (40), the stabipack (40) are located in valve body (10), and the stabipack (40) flows into for stablizing The pressure of gas in valve chamber.

2. a kind of pressure maintaining valve as described in claim 1, it is characterised in that:

The air inlet pipe (20) is two, and two air inlet pipe (20) are mutually perpendicular to.

3. a kind of pressure maintaining valve as claimed in claim 2, it is characterised in that:

The axis of the escape pipe (30) and the axis coaxle of one of air inlet pipe (20).