CN217874452U

CN217874452U - Pneumatic actuator for angle seat valve corrugated pipe

Info

Publication number: CN217874452U
Application number: CN202221018928.9U
Authority: CN
Inventors: 柏洋
Original assignee: Jiangsu Aidi Electromechanical Equipment Industry Co ltd
Current assignee: Jiangsu Aidi Electromechanical Equipment Industry Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-11-22
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses a pneumatic actuator of angle seat valve bellows, including the cylinder, the cylinder includes cylinder cap and jar seat, the cylinder cap passes through the bolt-up with the jar seat, be equipped with the bellows in the cylinder cap, bellows bottom outer lane is equipped with the holding ring, the holding ring outside stretches into the junction of cylinder cap and jar seat, be equipped with first sealing washer between holding ring upper end and the cylinder cap bottom, the holding ring lower extreme is equipped with the second sealing washer with jar seat upper portion, cylinder cap one side is equipped with air inlet and gas outlet respectively, in the jar seat bottom stretches into the valve body, still be equipped with the valve rod in the cylinder, the valve rod includes the gland and the body of rod, the gland is fixed at the bellows top, inside the body of rod passed from the bellows middle part and stretched into the valve body, body of rod bottom connection sealing pad.

Description

Pneumatic actuator for angle seat valve corrugated pipe

Technical Field

The utility model relates to an angle seat valve field, especially an angle seat valve bellows pneumatic actuator.

Background

The utility model relates to a pneumatic actuator and corrugated metal pipe (hereinafter referred to as bellows). The angle seat valve is widely applied to short-time frequent starting, has the characteristics of sensitive response and accurate action, is matched with an electromagnetic valve for use, and can accurately control the flow of gas and liquid by pneumatic control. Wherein, pneumatic controller adopts the mode of taking the spring, realizes reciprocating of valve rod through external gas, the switch of control valve. Due to frequent movement, wear of the sealing ring can be caused to further cause leakage, so that the service life of the valve is shortened. For a continuous production line, the actuator needs to be replaced frequently, so that shutdown maintenance is caused, the production schedule is delayed, and economic loss is caused.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to solve the technical problem that to prior art not enough, provide a pneumatic actuator of angle seat valve bellows.

In order to solve the technical problem, the utility model discloses a pneumatic executor of angle seat valve bellows, including the cylinder, the cylinder includes cylinder cap and jar seat, the cylinder cap passes through the bolt-up with the jar seat, be equipped with the bellows in the cylinder cap, bellows bottom outer lane is equipped with the holding ring, the holding ring outside stretches into the junction of cylinder cap and jar seat, be equipped with first sealing washer between holding ring upper end and the cylinder cap bottom, the holding ring lower extreme is equipped with the second sealing washer with jar seat upper portion, cylinder cap one side is equipped with air inlet and gas outlet respectively, the jar seat bottom is stretched into in the valve body, still be equipped with the valve rod in the cylinder, the valve rod includes the gland and the body of rod, the gland is fixed at the bellows top, the body of rod passes from the bellows middle part and stretches into inside the valve body, body of rod bottom connection gasket.

The utility model discloses in, sealed bottom of filling up is equipped with the round recess, is equipped with the third sealing washer in the recess.

The utility model discloses in, the bellows is double-deck nonrust corrugated steel pipe.

The utility model discloses in, the bellows external diameter is less than the internal diameter of cylinder cap.

In the utility model, an air cavity is reserved between the corrugated pipe, the gland and the cylinder cover.

The utility model discloses in, the air inlet is located the export gas lower extreme.

Has the beneficial effects that: the utility model discloses a bellows avoids the sealing washer motion wearing and tearing to cause the leakage as sealed extensible member. The sealing properties of the bellows itself are utilized. The corrugated pipe is equivalent to a sealing spring, and the corrugated pipe has rigidity (elasticity) and sealing property, so that the sealing property of the structure can be ensured, and the pressure of the return seat can be ensured.

With the sealing washer setting in non-motion department, can effectively realize the sealed of cylinder body, avoid arousing the loss of power owing to set up the wearing and tearing that cause in motion department.

The utility model discloses simple structure, manufacturing convenience have better suitability with the valve body.

Drawings

These and/or other advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings and the following detailed description.

Fig. 1 is a schematic sectional view.

Detailed Description

The embodiment is as follows:

as shown in fig. 1, the present embodiment provides a pneumatic actuator for a corrugated pipe of a corner seat valve, including an air cylinder 1, a cylinder cover 2, a cylinder seat 3, a bolt 4, a corrugated pipe 5, a positioning ring 6, a first sealing ring 7, a second sealing ring 8, an air inlet 9, an air outlet 10, a valve rod 11, a sealing gasket 12, a groove 13, a third sealing ring 14, and a valve body 15;

specifically, cylinder 1 includes cylinder cap 2 and jar seat 3, the cylinder cap passes through bolt 4 with the jar seat and fastens, be equipped with bellows 5 in the cylinder cap, bellows bottom outer lane is equipped with holding ring 6, the holding ring outside stretches into the junction of cylinder cap and jar seat, be equipped with first sealing washer 7 between holding ring upper end and the cylinder cap bottom, the holding ring lower extreme is equipped with second sealing washer 8 with jar seat upper portion, cylinder cap one side is equipped with air inlet 9 and gas outlet 10 respectively, the jar seat bottom stretches into in the valve body, still be equipped with valve rod 11 in the cylinder, the valve rod includes gland 11a and the body of rod 11b, the gland is fixed at the bellows top, the body of rod passes from the bellows middle part and stretches into inside 15 valve bodies, body of rod bottom joint gasket 12.

In this embodiment, the bottom of the sealing gasket is provided with a ring of groove 13, and a third sealing ring 14 is arranged in the groove.

In this embodiment, the corrugated tube is a double-layer stainless steel corrugated tube.

In this embodiment, the outer diameter of the bellows is smaller than the inner diameter of the cylinder head.

In this embodiment, an air cavity is left between the bellows, the gland and the cylinder cover.

In this embodiment, the air inlet is located at the lower end of the outlet air.

This embodiment is when using, and air inlet 9 admits air, and extrusion bellows 5 compresses, drives valve rod 11 and moves down, and the sealed 14 butt of sealing pad cooperation third sealing washer in valve rod 11 bottom plug valve body 15 on valve body 15, closes air inlet 9, opens gas outlet 10, and air cavity pressure replies, and under the shrink answer of bellows, the valve rod shifts up, and the valve body is opened, can circulate.

The utility model provides a thought and method of angle seat valve bellows pneumatic actuator specifically realize that this technical scheme's method and approach are many, above only the utility model discloses a preferred embodiment should point out, to this technical field's ordinary technical personnel, is not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as with moist decorations the utility model discloses a protection scope. All the components not specified in the present embodiment can be realized by the prior art.

Claims

1. The utility model provides a pneumatic actuator of angle seat valve bellows, a serial communication port, including the cylinder, the cylinder includes cylinder cap and jar seat, the cylinder cap passes through bolt-up with the jar seat, be equipped with the bellows in the cylinder cap, bellows bottom outer lane is equipped with the holding ring, the holding ring outside stretches into the junction of cylinder cap and jar seat, be equipped with first sealing washer between holding ring upper end and the cylinder cap bottom, the holding ring lower extreme is equipped with the second sealing washer with jar seat upper portion, cylinder cap one side is equipped with air inlet and gas outlet respectively, the jar seat bottom stretches into in the valve body, still be equipped with the valve rod in the cylinder, the valve rod includes gland and the body of rod, the gland is fixed at the bellows top, inside the body of rod passed from the bellows middle part and stretches into the valve body, body of rod bottom connection sealing pad.

2. The pneumatic actuator for a bellows of a globe valve according to claim 1, wherein the bottom of the packing is provided with a groove, and a third packing is provided in the groove.

3. The pneumatic actuator of claim 1, wherein the bellows is a double-layer stainless steel bellows.

4. A pneumatic actuator for a bellows of a poppet valve as defined in claim 1, wherein the bellows has an outer diameter smaller than an inner diameter of the cylinder head.

5. The pneumatic actuator of claim 4, wherein an air cavity is left between the bellows, the gland and the cylinder head.

6. The pneumatic actuator of claim 1, wherein the inlet port is located at the lower end of the outlet port.