CN217815084U

CN217815084U - Hydraulic sealing wear-resistant pneumatic ball valve

Info

Publication number: CN217815084U
Application number: CN202221275045.6U
Authority: CN
Inventors: 陈晓辉
Original assignee: Jiangsu Huixiangte Valve Co ltd
Current assignee: Jiangsu Huixiangte Valve Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-11-15
Anticipated expiration: 2032-05-26

Abstract

The utility model relates to the technical field of ball valves, and discloses a hydraulic sealing wear-resisting pneumatic ball valve, which comprises a shell, wherein the inner side of the shell is rotationally connected with a rotating shaft, the outer part of the rotating shaft is fixedly connected with a switching ball plug, the inner side of the shell is provided with an oil groove, the inner side of the oil groove is rotationally connected with an extrusion plate, and the inner part of the shell is provided with a through pipe; through bullet pad and switching ball stopper contact, thereby effectively reduce the wearing and tearing that the contact friction of switching ball stopper and casing produced, rotate at the switching ball stopper simultaneously and close under the state of pneumatic ball valve, the fluid closes the ball stopper surface of closing under the stress effect that produces by the jam and makes it unable and bullet pad in close contact with, the stripper plate rotates and makes the inboard hydraulic oil of oil groove carry the bounce pad surface under the pressure chamber effect, thereby it is more accurate to make bullet pad deformation and switching ball stopper laminating, thereby realize that pneumatic ball valve opens and automatic change seal strength under the closed condition, the leakproofness and the life of pneumatic ball valve have been improved.

Description

Hydraulic sealing wear-resistant pneumatic ball valve

Technical Field

The utility model relates to a technical field of ball valve specifically is a wear-resisting pneumatic ball valve of hydraulic seal.

Background

The ball valve, the opening and closing piece is driven by the valve rod, and the valve that revolves around the ball valve axis makes rotary motion can be used for the regulation and the control of fluidic, wherein has very strong shearing force between its V type ball core of hard seal V type ball valve and the metal valve seat of build-up welding carbide, specially adapted contains the medium of fibre, tiny solid particle etc. the ball valve divide into according to the drive mode: pneumatic ball valve, electronic ball valve, manual ball valve, wherein pneumatic ball valve uses in production life most extensively, but current pneumatic ball valve is using spheroid and valve body direct contact to produce great wearing and tearing, and current ball valve open mode is different with the closed condition spheroid receives fluid stress simultaneously, and current start-up ball valve can not be according to the opening of ball valve and the leakproofness of the automatic spheroid of closed condition and valve body to the wearing and tearing of spheroid and valve body have been aggravated, have reduced pneumatic ball valve's life.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned current pneumatic ball valve and using spheroid and valve body direct contact to produce great wearing and tearing, it is different that current ball valve open mode receives fluid stress with the closed condition spheroid simultaneously, current start-up ball valve can not be according to opening of ball valve and the leakproofness of the automatic spheroid of closed condition and valve body, thereby aggravate the wearing and tearing of spheroid and valve body, the problem of the life of pneumatic ball valve has been reduced, elastic contact is sealed more than the realization, open and the automatic change seal strength of closed condition, improve pneumatic ball valve leakproofness, stand wear and tear purpose, the utility model discloses a following technical scheme realizes: the utility model provides a wear-resisting pneumatic ball valve of hydraulic seal, includes the casing, the inboard of casing is rotated and is connected with the pivot, the outside fixedly connected with switching ball stopper of pivot, the oil groove has been seted up to the inboard of casing, the inboard of oil groove is rotated and is connected with the stripper plate, the siphunculus has been seted up to the inside of casing, the pressure chamber has been seted up to the inside of casing, the inboard joint of pressure chamber has the bullet pad.

Further, the outside fixedly connected with pneumatic motor of casing, the pivot passes through connecting axle fixed connection with pneumatic motor, pivot and casing rotary seal, switching ball stopper and casing internal passage rotary seal are connected, switching ball stopper can rotate with casing internal passage inside and communicate with each other, also can rotate the jam.

Further, hydraulic oil is added to the inside of oil groove, the both ends of siphunculus communicate with each other with the oil groove respectively and the pressure chamber communicates with each other, bullet pad and pressure chamber sealing connection, the bullet pad rotates sealing connection with switching ball stopper, the stripper plate rotates sealing connection with the oil groove, stripper plate and pivot fixed connection.

The utility model provides a wear-resisting pneumatic ball valve of hydraulic seal. The method has the following beneficial effects:

1. this wear-resisting pneumatic ball valve of hydraulic seal, contact with switching ball stopper through the bullet pad, thereby effectively reduce the wearing and tearing that the contact friction of switching ball stopper and casing produced, rotate at switching ball stopper simultaneously and close under pneumatic ball valve's the state, the fluid is stopped up the stress effect that produces and is opened and close ball stopper surface and make it unable and bullet pad in close contact with, the stripper plate rotates and makes the inboard hydraulic oil of oil groove carry the surge chamber effect down bullet pad surface, thereby it is more accurate to make bullet pad deformation and the laminating of switching ball stopper, thereby realize that pneumatic ball valve opens and close the state under the automatic change seal strength, pneumatic ball valve's leakproofness and life have been improved.

Drawings

FIG. 1 is a schematic view of the inner part of the pneumatic ball valve in a closed state according to the present invention;

FIG. 2 is a schematic view of the connection relationship among the housing, the rotating shaft, the oil groove, the extrusion plate and the through pipe when the pneumatic ball valve of the present invention is in a closed state;

fig. 3 is the structural schematic diagram of the connection relationship between the casing, the rotating shaft, the oil groove, the extrusion plate and the through pipe in the opening state of the pneumatic ball valve.

In the figure: 1. a housing; 2. a rotating shaft; 3. opening and closing the ball plug; 4. an oil sump; 5. a pressing plate; 6. pipe passing; 7. a pressure chamber; 8. a spring pad; 9. a pneumatic motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the hydraulic seal abrasion-proof pneumatic ball valve is as follows:

referring to fig. 1-3, a hydraulic sealing wear-resistant pneumatic ball valve comprises a housing 1, a rotating shaft 2 rotatably connected to the inner side of the housing 1, an opening/closing ball plug 3 fixedly connected to the outer side of the rotating shaft 2, an oil groove 4 formed in the inner side of the housing 1, a squeezing plate 5 rotatably connected to the inner side of the oil groove 4, a through pipe 6 formed in the housing 1, a pressure chamber 7 formed in the housing 1, a spring pad 8 fastened to the inner side of the pressure chamber 7, a pneumatic motor 9 fixedly connected to the outer side of the housing 1, the rotating shaft 2 fixedly connected to the pneumatic motor 9 via a connecting shaft, the rotating shaft 2 rotatably sealed to the housing 1, the opening/closing ball plug 3 rotatably sealed to the inner passage of the housing 1, the opening/closing ball plug 3 rotatably communicated to the inner passage of the housing 1 or rotatably plugged to the inner side of the housing 1, the rotating shaft 2 fixedly connected to the pneumatic motor 9 via the connecting shaft, the rotating shaft 2 rotatably sealed to the housing 1, the ball plug 3 rotatably sealed to the inner passage of the housing 1, the opening/closing ball plug 3 rotatably communicated to the inner passage of the housing 1 or rotatably plugged by the spring pad 8, thereby effectively reducing the abrasion caused by the contact friction between the opening and closing ball plug 3 and the shell 1, and simultaneously under the state that the opening and closing ball plug 3 rotates to close the pneumatic ball valve, the surface of the ball plug 3 is opened and closed under the stress action generated by the blockage of the fluid, so that the ball plug cannot be in close contact with the elastic cushion 8, the extrusion plate 5 rotates to ensure that the hydraulic oil in the inner side of the oil groove 4 is conveyed to the surface of the elastic cushion 8 under the action of the pressure chamber 7, thereby make bullet 8 deformation of pad and the laminating of switching ball stopper 3 more accurate to realize that pneumatic ball valve opens and automatic change seal strength under the closed condition, improved pneumatic ball valve's leakproofness and life.

The working principle is as follows:

when the pneumatic ball valve is closed, the operation of the pneumatic motor 9 drives the rotating shaft 2 to rotate on the inner side of the shell 1, the rotating shaft 2 rotates to drive the opening and closing ball plug 3 to rotate on the inner side of the shell 1 to close an internal channel of the shell 1, the rotating shaft 2 rotates to drive the extrusion plate 5 to rotate in the oil groove 4 to press hydraulic oil into the through pipe 6, the hydraulic oil is conveyed into the pressure chamber 7 through the through pipe 6, the hydraulic oil is accumulated in the pressure chamber 7 to enable the elastic pad 8 to deform and be tightly attached to the opening and closing ball plug 3, so that the extrusion effect of the closing fluid stress of the opening and closing ball plug 3 in the shell 1 on the opening and closing ball plug 3 is reduced, the sealing performance of the opening and closing ball plug 3 is improved, when the pneumatic ball valve is closed, the operation of the pneumatic motor 9 drives the rotating shaft 2 to rotate on the inner side of the shell 1 to open the internal channel of the shell 1, the rotating shaft 2 drives the extrusion plate 5 to rotate on the oil groove 4 to enable the negative pressure in the oil groove 4, the hydraulic oil in the pressure chamber 7 flows back through the through pipe 6 to enter the oil groove 4, the elastic pad 8 to restore to be normal state, at this moment, the internal opening and closing ball valve is opened in the shell 1, the internal channel, the shell, the contact stress of the shell 1 is reduced, and the sealing performance of the elastic pad 3 is still better.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a wear-resisting pneumatic ball valve of hydraulic seal, includes casing (1), its characterized in that: the inboard of casing (1) is rotated and is connected with pivot (2), outside fixedly connected with switching bulb stopper (3) of pivot (2), oil groove (4) have been seted up to the inboard of casing (1), the inboard of oil groove (4) is rotated and is connected with stripper plate (5), siphunculus (6) have been seted up to the inside of casing (1), pressure chamber (7) have been seted up to the inside of casing (1), the inboard joint of pressure chamber (7) has bullet pad (8).

2. A hydraulically sealed, wear-resistant, pneumatic ball valve as claimed in claim 1, wherein: and a pneumatic motor (9) is fixedly connected to the outside of the shell (1).

3. A hydraulically sealed, wear-resistant pneumatic ball valve as claimed in claim 2, wherein: the rotating shaft (2) is fixedly connected with the pneumatic motor (9) through a connecting shaft, and the rotating shaft (2) and the shell (1) are rotationally sealed.

4. A hydraulically sealed, wear-resistant, pneumatic ball valve as claimed in claim 1, wherein: the opening and closing ball plug (3) is connected with the inner channel of the shell (1) in a rotating and sealing manner, and the opening and closing ball plug (3) can be communicated with the inner channel of the shell (1) in a rotating manner and can also be blocked in a rotating manner.

5. A hydraulically sealed, wear-resistant, pneumatic ball valve as claimed in claim 1, wherein: hydraulic oil is added into the oil groove (4), and two ends of the through pipe (6) are communicated with the oil groove (4) and the pressure chamber (7) respectively.

6. A hydraulically sealed, wear-resistant pneumatic ball valve as claimed in claim 1, wherein: the elastic pad (8) is connected with the pressure chamber (7) in a sealing way, and the elastic pad (8) is connected with the opening and closing ball plug (3) in a rotating and sealing way.

7. A hydraulically sealed, wear-resistant pneumatic ball valve as claimed in claim 1, wherein: the extrusion plate (5) is connected with the oil groove (4) in a rotating and sealing mode, and the extrusion plate (5) is fixedly connected with the rotating shaft (2).