CN217874181U - Vacuum valve - Google Patents

Abstract

The utility model discloses a vacuum valve, its key feature is that the direction of motion of valve plug opening action is from the high pressure side of valve plug to the low pressure side motion of valve plug. The vacuum valve has the advantage of quick opening action of the valve plug, and can meet the requirement that a vacuum demand end quickly reaches a vacuum state.

Description

Vacuum valve

Technical Field

The present invention relates to vacuum system components, and more particularly to vacuum valves.

Background

The vacuum valve is widely applied to places such as a vacuum storage tank and the like which need to control the on-off of a vacuum pipeline. The valve plug of the existing vacuum valve is opened and the moving direction is opposite to the air flow direction. The pressure differential across the valve plug needs to be overcome when opening the valve plug. The valve plug opening speed is limited by the pressure difference between two sides of the valve plug, and the requirement that the vacuum demand end quickly reaches a vacuum state is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vacuum valve to satisfy the demand that the vacuum demand end that the vacuum valve is connected reaches vacuum state fast.

The utility model discloses a realize like this: the vacuum valve comprises a valve body, wherein a valve plug is arranged in the valve body, and the opening motion direction of the valve plug moves from the high-pressure side of the valve plug to the low-pressure side of the valve plug.

The utility model has the advantages that: because the motion direction of the opening action of the valve plug moves from the high-pressure side of the valve plug to the low-pressure side of the valve plug, the pressure difference between the two sides of the valve plug does not hinder the resistance of the valve plug to open but becomes the power for helping the valve plug to open quickly, and the requirement that the vacuum demand end connected with the vacuum valve quickly reaches a vacuum state can be met.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic view of the vacuum valve in an open state.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1, the vacuum valve includes a valve body 1, and a valve plug 2 is provided in the valve body 1. The valve plug 2 in fig. 1 is in the closed state. The port 3 on the left side of the valve body is the port to which a vacuum demand is connected, for example to equipment requiring the use of vacuum. The port 4 on the underside of the valve body is a port for connection to a vacuum supply, such as a vacuum reservoir. The left side of the valve plug 2 is the high pressure side and the right side of the valve plug 2 is the low pressure side. The valve plug is open as shown in fig. 2. As can be seen from a comparison of fig. 2 and 1, the valve plug opening movement is in a direction from the high pressure side of the valve plug 2 towards the low pressure side of the valve plug 2. So, the pressure differential help valve plug 2 of usable valve plug 2 both sides is opened fast, makes the vacuum demand end that the vacuum valve is connected can reach vacuum state fast. The element for actuating the valve plug 2 is a cylinder 5 mounted on the valve body 1. Instead of a cylinder, a solenoid valve may be used to actuate the valve plug 2.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (1)

1. The utility model provides a vacuum valve, includes a valve body, is equipped with the valve plug in the valve body, and the component of drive valve plug action is installed to the valve body, characterized by: the direction of movement of the element to actuate the opening action of the valve plug is from the high pressure side of the valve plug towards the low pressure side of the valve plug.

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