CN219413569U

CN219413569U - Exhaust poppet valve seal

Info

Publication number: CN219413569U
Application number: CN202223332205.9U
Authority: CN
Inventors: 陶旭东; 王浩玮
Original assignee: Jiangsu Youruide Environment Technology Co ltd
Current assignee: Jiangsu Youruide Environment Technology Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-07-25
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses an exhaust poppet valve seal, which comprises a valve plate, a rubber sealing ring, a sealing plate and screws, wherein the rubber sealing ring is formed by integrally forming a rubber gasket and rubber rings on two sides, a threaded countersink is arranged on the sealing plate, the screws penetrate through the threaded countersink and are fixedly arranged on the valve plate in a threaded connection manner, through holes matched with the screws are distributed on the rubber gasket in an annular array manner, the rubber gasket is sleeved on the screws, and the sealing plate is used for fixedly pressing the rubber sealing ring on the valve plate in a connecting manner. The rigid collision stress between the valve plate and the sealing surface of the valve body is avoided by changing the design of the rubber sealing ring, and the contact area between the rubber sealing ring and the sealing surface of the valve body is increased by the totally-enclosed hollow stress state of the rubber sealing ring, so that the sealing performance of the poppet valve is ensured; the leakage of the valve is reduced, and the tail gas index in the factory is ensured to achieve the positive effect of environmental protection.

Description

Exhaust poppet valve seal

Technical Field

The utility model belongs to the technical field of exhaust poppet valves, and particularly relates to an exhaust poppet valve seal.

Background

At present, a plurality of tail gases in a chemical plant need to be collected and then incinerated, particularly when a lifting valve is switched, the factors causing leakage are changed in instantaneous suction and pressure, a gap between a valve plate and a sealing surface of a valve body and the like, and when the instantaneous suction and pressure of the tail gases are large, the requirements on the tightness between the valve plate and the sealing surface of the valve body are high, otherwise, the tail gases are leaked into a factory.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the elastic rubber sealing ring is designed on the sealing surface of the valve plate and the valve body, the contact area is increased by expanding the rubber sealing ring when the valve plate and the valve body are closed and pressed, and the rubber sealing ring rebounds when the valve plate and the valve body are contracted, so that the sealing performance between the valve plate and the sealing surface of the valve body is improved.

In order to solve the technical problems, the utility model is realized by the following technical scheme: the utility model provides an exhaust poppet valve seal, includes valve plate, rubber seal, closing plate and screw, rubber seal comprises rubber pad and the rubber ring integrated into one piece of both sides, be provided with the screw counter bore on the closing plate, the screw passes screw counter bore spiro union fixed mounting on the valve plate, be annular array on the rubber pad and distribute and set up with screw matched with through-hole, the rubber pad cup joints on the screw, the closing plate is fixed rubber seal crimping on the valve plate.

Preferably, both sides of the sealing plate are provided with arc-shaped structures.

Preferably, the sealing plate is provided in a circular ring structure.

Compared with the prior art, the utility model has the following advantages: the rigid collision stress between the valve plate and the sealing surface of the valve body is avoided by changing the design of the rubber sealing ring, and the contact area between the rubber sealing ring and the sealing surface of the valve body is increased by the totally-enclosed hollow stress state of the rubber sealing ring, so that the sealing performance of the poppet valve is ensured; the leakage of the valve is reduced, and the tail gas index in the factory is ensured to achieve the positive effect of environmental protection.

Drawings

The utility model is further described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of an exhaust poppet valve lifted state.

Fig. 2 is a schematic diagram of the structure of the exhaust poppet valve in a closed state.

Fig. 3 is an enlarged schematic view of the structure at M of fig. 1.

Detailed Description

The utility model is described in detail below in connection with specific embodiments:

the utility model provides an exhaust poppet valve seal as shown in fig. 1 to 3, includes valve plate 1, rubber seal, closing plate 4 and screw 5, rubber seal comprises rubber pad 2 and the rubber ring 3 integrated into one piece of both sides, rubber ring 3 sets up to hollow seal ring structure, therefore rubber ring 3 has compressible and characteristic that pops up, be provided with screw thread counter bore 6 on the closing plate 4, screw 5 passes screw thread counter bore 6 spiro union fixed mounting on valve plate 1, and screw thread counter bore 6 can imbed screw 5 its inside, avoids producing the interference between screw 5 and the valve body sealing surface, be the annular array on the rubber pad 2 and distribute the through-hole that sets up with screw 5 matched with, on rubber pad 2 cup jointed screw 5, closing plate 4 is fixed rubber seal crimping on valve plate 1.

The two sides of the sealing plate 4 are provided with arc surface structures 7 so as to avoid scratching the rubber ring 3 when the rubber sealing ring is extruded and deformed.

The sealing plate 4 is arranged to be of a circular ring-shaped structure, the circular ring-shaped structure is convenient for the sealing plate 4 to be installed, and the threaded countersunk holes 6 are arranged on the sealing plate 4 in a circular array.

It is emphasized that: it will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. An exhaust poppet valve seal, characterized by: including valve plate (1), rubber seal, closing plate (4) and screw (5), rubber seal comprises rubber ring (3) integrated into one piece of rubber pad (2) and both sides, be provided with screw thread countersink (6) on closing plate (4), screw (5) pass screw thread countersink (6) spiro union fixed mounting on valve plate (1), be annular array on rubber pad (2) and distribute and set up with screw (5) matched with through-hole, rubber pad (2) cup joint on screw (5), closing plate (4) are fixed rubber seal crimping on valve plate (1).

2. The exhaust poppet valve seal as defined in claim 1, wherein: both sides of the sealing plate (4) are provided with arc surface structures (7).

3. The exhaust poppet valve seal as defined in claim 1, wherein: the sealing plate (4) is arranged in a circular ring structure.