CN202561183U - Valve connection structure of pressure-reducing device - Google Patents

Abstract

The utility model relates to a pressure reducer, in particular to a valve body connection structure of the pressure reducer. The utility model provides the following technical scheme: a valve body connection structure of a pressure reducer, including a pressure reducing valve body and an electromagnetic valve body, the pressure reducing valve body is provided with connecting pieces, and the electromagnetic valve body is provided with The connecting block connected with the connecting piece of the pressure reducing valve body, the connecting piece of the pressure reducing valve body is a connecting flange, the connecting block on the solenoid valve body is a flange plate connected with the connecting flange, the connecting flange and the flange plate They respectively include a connecting channel and connecting ends arranged on both sides of the connecting channel, and the connecting channels of the connecting flange and the flange plate are respectively provided with sealing chambers for placing sealing rings. By adopting the above technical solution, a valve body connection structure of a pressure reducer with convenient installation and good sealing performance is provided.

Description

The valve body connection structure of the pressure reducer

technical field

The utility model relates to a pressure reducer, in particular to a valve body connection structure of the pressure reducer.

Background technique

The pressure reducer is a regulating device that reduces high-pressure gas to low-pressure gas and keeps the pressure and flow of the output gas stable. Since the pressure in the gas cylinder is relatively high, but the pressure required for gas welding and gas cutting and the point of use is relatively small, it is necessary to use a pressure reducer to reduce the high-pressure gas stored in the gas cylinder to a low-pressure gas, and it should be ensured The required operating pressure remains constant throughout. It is mainly used in vehicles whose driving medium is natural gas, and is used to adjust the output pressure of cylinders storing natural gas in the vehicle. At present, the pressure reducers appearing on the market and materials usually consist of a pressure reducing valve and a solenoid valve connected to the pressure reducing valve. The valve body of the pressure reducing valve is usually provided with a connection port for the insertion of the solenoid valve body, and the solenoid valve body is inserted through the connection port and locked by the locking screw; since the pressure reducing valve body and the solenoid valve body need to be sealed, the A sealing ring needs to be provided on the locking screw; since the locking screw is active during the locking process, the sealing ring sleeved on it often wears and ruptures, which poses a greater safety hazard.

Contents of the invention

Aiming at the deficiencies in the prior art, the utility model provides a valve body connection structure of a pressure reducer with convenient installation and good sealing performance.

In order to achieve the above purpose, the utility model provides the following technical solutions: a valve body connection structure of a pressure reducer, including a pressure reducing valve body and an electromagnetic valve body, the pressure reducing valve body is provided with a connecting piece, an electromagnetic The valve body is provided with a connecting block connected with the connecting piece of the pressure reducing valve body, which is characterized in that: the connecting piece of the pressure reducing valve body is a connecting flange, and the connecting block on the solenoid valve body is connected with the connecting flange The flange plate, the connecting flange and the flange plate respectively include a connecting channel and connecting ends on both sides of the connecting channel, and the connecting channel of the connecting flange and the flange plate are respectively provided with a sealing cavity for placing a sealing ring .

With the above technical scheme, the pressure reducing valve body and the electromagnetic valve body are connected through flanges, which is not only convenient for installation, but also will not cause damage to the sealing ring during the installation process, which ensures the sealing effect and also improves the use of the pressure reducer. security at the time.

The utility model is further configured as follows: the electromagnetic valve body is provided with at least two installation ports connected with the connecting channel on the flange plate through the channel.

With the above technical solution, the installation port is used for installing the pressure gauge and as a test port for testing.

Below in conjunction with accompanying drawing, the utility model will be further described:

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the structural representation of pressure reducing valve body in the utility model embodiment;

Fig. 3 is a schematic diagram of the structure of the solenoid valve body in the embodiment of the utility model.

FIG. 4 is a schematic cross-sectional view along line A-A of FIG. 3 .

Detailed ways

The valve body connection structure of a pressure reducer as shown in Figure 1-Figure 4 includes a pressure reducing valve body 1 and a solenoid valve body 2, a connecting piece 3 is provided on the pressure reducing valve body 1, and a solenoid valve body 2 There is a connecting block 4 connected with the connecting piece 3 of the pressure reducing valve body 1, the connecting piece 3 of the pressure reducing valve body 1 is a connecting flange, and the connecting block 4 on the solenoid valve body 2 is a flange connected with the connecting flange The connecting flange and the flange plate respectively include a connecting channel 5 and connecting ends 6 located on both sides of the connecting channel 5, and the connecting channel 5 of the connecting flange and the flange plate are respectively provided with sealing rings for placement. Cavity 7. In the above solution, the pressure reducing valve body 1 and the solenoid valve body 2 are connected through flanges, which is not only convenient for installation, but also does not cause damage to the sealing ring during the installation process, which ensures the sealing effect and improves the pressure reducer at the same time. Safety while in use.

In the embodiment of the present utility model, the solenoid valve body 2 is provided with at least two installation ports 52 connected with the connection channel 5 on the flange plate through the channel 51 . The setting of the installation port 52 is used for installing the pressure gauge and as a test port during testing. certainly. The number of installation openings 52 can be determined according to the design.

Claims (2)

1. the valve body linkage structure of a decompressor; Include reducing valve body and electromagnetic valve body; Described reducing valve body is provided with link; Electromagnetic valve body is provided with the contiguous block that is connected with the link of reducing valve body, it is characterized in that: the link of described reducing valve body is an adpting flange, and the contiguous block on the electromagnetic valve body is and adpting flange flange connecting dish; Adpting flange and flange plate include connecting passage respectively and are located at the connecting end of connecting passage both sides, and the place is provided with the Seal cage that supplies seal ring to place respectively in the connecting passage of adpting flange and flange plate.

2. the valve body linkage structure of decompressor according to claim 1 is characterized in that: described electromagnetic valve body be provided with at least two with its flange plate on the mount inlet of connecting passage through the passage conducting.

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