CN213575675U

CN213575675U - Pneumatic ball valve

Info

Publication number: CN213575675U
Application number: CN202022387244.3U
Authority: CN
Inventors: 高淋艳; 秦宇鹏
Original assignee: Zhejiang Yanqi Automatic Control Valve Technology Co ltd
Current assignee: Zhejiang Yanqi Automatic Control Valve Technology Co ltd
Priority date: 2020-10-24
Filing date: 2020-10-24
Publication date: 2021-06-29
Anticipated expiration: 2030-10-24

Abstract

The utility model discloses a pneumatic ball valve, which comprises a valve cover, wherein a valve body is clamped at one side of the valve cover, a valve seat is arranged on the inner side wall of the valve body, the inner side wall of the valve seat is rotatably connected with a ball body, a clamping groove is arranged on the top wall of the outer side wall of the ball body, and a flat tenon is clamped on the inner side wall of the clamping groove, in the using process of the device, the sealing ring and the stuffing box are made of flexible graphite through the arrangement of the sealing ring and the stuffing box, when the device is used for conveying corrosive, radioactive and high or low temperature media, the sealing ring and the stuffing box are resistant to high temperature and low temperature, are simultaneously resistant to corrosion and radiation, the aging speed of the sealing ring and the stuffing box is reduced, the pressure resistance and the flexibility of the sealing ring and the stuffing box are good, the sealing effect of the device is improved, thereby facilitating the transport of the medium.

Description

Pneumatic ball valve

Technical Field

The utility model relates to the technical field of valves, specifically a pneumatic ball valve.

Background

Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves for fluid control systems range from the simplest globe valves to the most complex valves used in autonomous systems, of which the variety and specification are quite numerous, ball valves being one type of valve in which the closure member (ball) is driven by a valve stem and rotates about the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The ball valve is divided into: the ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline and can be closed tightly only by rotating 90 degrees and a small rotating torque. The ball valve is most suitable for being used as a switch and a stop valve.

The in-process that current pneumatic ball valve used, when having the transport of corruption, radiation nature and higher or low temperature medium, caused the damage to the sealing washer of ball valve for the ageing speed of sealing washer reduces the sealed effect of ball valve, and the shock resistance is relatively poor simultaneously, leads to being connected between ball valve and the valve rod easily not hard up, causes the leakage of carrying the medium, thereby leads to the waste to the medium, is unfavorable for the transport of medium, for this reason, provides a pneumatic ball valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic ball valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pneumatic ball valve, includes the valve gap, one side joint of valve gap has the valve body, the disk seat is installed to the inside wall of valve body, the inside wall of disk seat rotates and is connected with the spheroid, the draw-in groove has been seted up to spheroidal lateral wall roof, the inside wall joint of draw-in groove has the tenon, the top of valve body is equipped with pneumatic actuator, the valve rod is installed to pneumatic actuator's output, the one end of valve rod with the last fixed surface of tenon is connected, the chamber that packs has been seted up to the upper surface of valve body, the inside wall fixedly connected with packing box in chamber that packs, the third through-hole has been seted up to.

As further preferable in the present technical solution: and a sealing ring is bonded on one side of the valve body.

As further preferable in the present technical solution: the upper surface of the valve body is fixedly connected with a support, the top of the support is fixedly connected with the lower surface of the pneumatic actuator, and one end of the valve rod penetrates through the support.

As further preferable in the present technical solution: and the inner side wall of the packing cavity is fixedly connected with a packing bottom ring.

As further preferable in the present technical solution: the lower surface of the support is provided with a second through hole, the inner side wall of the second through hole is fixedly connected with a pressing sleeve, the upper surface of the pressing sleeve is provided with a first through hole, and the inner side wall of the first through hole is rotatably connected with the outer side wall of the valve rod.

As further preferable in the present technical solution: the valve cover and one side of the valve body are all provided with threaded through holes, the inner side wall of each threaded through hole is in threaded connection with a bolt, and the outer side wall of each bolt is in threaded connection with a nut.

Compared with the prior art, the beneficial effects of the utility model are that: in the in-process that this device used, through the setting of sealing washer and packing box, the material of sealing washer and packing box is flexible graphite, to having corruption, when the transport of radiation nature and higher or low temperature medium, sealing washer and packing box are high resistant, the low temperature, it is simultaneously corrosion-resistant and radiation, reduce the ageing speed to sealing washer and packing box, simultaneously the resistance to pressure and the pliability of sealing washer and packing box are good, improve the sealed effect to this device, and sealing washer and packing box have antidetonation effect, make being connected between valve body and the valve rod difficult not hard up, thereby do benefit to the transport of medium.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure of area A of FIG. 1 according to the present invention;

fig. 3 is a schematic front view of the structure of the present invention.

In the figure: 1. a valve cover; 2. a valve body; 3. a seal ring; 4. a valve seat; 5. a sphere; 6. flat tenon; 7. a stuffing box; 8. a pneumatic actuator; 9. a support; 10. pressing the sleeve; 11. a first through hole; 12. a valve stem; 13. a packing cavity; 14. a filler bottom ring; 15. a card slot; 16. a threaded through hole; 17. a bolt; 18. a nut; 19. a second through hole; 20. a third via.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a pneumatic ball valve, including valve gap 1, one side joint of valve gap 1 has valve body 2, disk seat 4 is installed to valve body 2's inside wall, disk seat 4's inside wall rotates and is connected with spheroid 5, draw-in groove 15 has been seted up to spheroid 5's lateral wall roof, draw-in groove 15's inside wall joint has tongue 6, valve body 2's top is equipped with pneumatic actuator 8, valve rod 12 is installed to pneumatic actuator 8's output, the one end of valve rod 12 and the last fixed surface of tongue 6 are connected, packing chamber 13 has been seted up to valve body 2's upper surface, packing chamber 13's inside wall fixedly connected with packing box 7, third through hole 20 has been seted up.

In this embodiment, specifically: a sealing ring 3 is bonded on one side of the valve body 2; through the setting of sealing washer 3, the material of sealing washer 3 is flexible graphite, improves the leakproofness between valve body 2 and the valve gap 1, makes the sealed effect of this device better.

In this embodiment, specifically: the upper surface of the valve body 2 is fixedly connected with a support 9, the top of the support 9 is fixedly connected with the lower surface of the pneumatic actuator 8, and one end of a valve rod 12 penetrates through the support 9; through the setting of support 9, play the effect of protection to valve rod 12, reduce the damage that the external world caused valve rod 12, and play the effect of support to pneumatic actuator 8 for pneumatic actuator 8's fixed more firm.

In this embodiment, specifically: the inner side wall of the packing cavity 13 is fixedly connected with a packing bottom ring 14; through the setting of packing bottom ring 14, improve the leakproofness between valve rod 12 and the valve body 2, make this device leakproofness better for the difficult leakage of medium of carrying.

In this embodiment, specifically: a second through hole 19 is formed in the lower surface of the support 9, a pressing sleeve 10 is fixedly connected to the inner side wall of the second through hole 19, a first through hole 11 is formed in the upper surface of the pressing sleeve 10, and the inner side wall of the first through hole 11 is rotatably connected with the outer side wall of the valve rod 12; through the setting of pressing cover 10, press cover 10 to insert and fix in the first through-hole 11 in the support 9, valve rod 12 rotates in the first through-hole 11 on pressing cover 10, improves valve rod 12's stability for valve rod 12 is more stable at the pivoted in-process.

In this embodiment, specifically: one side of the valve cover 1 and one side of the valve body 2 are both provided with threaded through holes 16, the inner side walls of the threaded through holes 16 are in threaded connection with bolts 17, and the outer side walls of the bolts 17 are in threaded connection with nuts 18; through bolt 17's setting, insert bolt 17 in the screw through-hole 16 between valve gap 1 and the valve body 2, fix valve gap 1 and valve body 2, at fixed in-process, sealing washer 3 on valve gap 1 extrusion valve body 2 improves the leakproofness between valve gap 1 and the valve body 2, makes the sealed effect of this device better, and nut 18 fastens bolt 17 simultaneously, makes bolt 17's fixed more firm.

Working principle or structural principle, when in use, the valve cover 1 and the valve body 2 are connected with a pipeline for conveying a medium through a flange, meanwhile, the bolt 17 is inserted into a threaded through hole 16 between the valve cover 1 and the valve body 2 through the arrangement of the bolt 17 to fasten the valve cover 1 and the valve body 2, meanwhile, the valve cover 1 extrudes a sealing ring 3 on the valve body 2, the sealing effect of the device is improved, the pneumatic actuator 8 is started to drive the valve rod 12 to rotate, the valve rod 12 drives the flat tenon 6 to rotate, the flat tenon 6 is used for connecting the valve rod 12 and the sphere 5, the flat tenon 6 is clamped with a clamping groove 15 on the sphere 5 so as to drive the sphere 5 to rotate, thereby controlling the opening and closing of the device, meanwhile, when the valve rod 12 rotates, the valve rod 12 rotates in a first through hole 11 on the pressing sleeve 10, the pressing sleeve 10 is arranged to improve the stability of the valve rod 12, and through the arrangement, protect valve rod 12, support pneumatic actuator 8 simultaneously, promote pneumatic actuator 8's stability, packing chamber 13 is used for filling packing box 7 and packing bottom ring 14, and the setting of packing bottom ring 14 has improved and has sealed between valve rod 12 and the valve body 2, cooperates packing box 7 simultaneously, and the material of packing box 7 is flexible graphite, improves the seal between valve rod 12 and the valve body 2, makes this device leakproofness 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. A pneumatic ball valve comprises a valve cover (1), and is characterized in that: valve gap (1) one side joint has valve body (2), disk seat (4) are installed to the inside wall of valve body (2), the inside wall of disk seat (4) rotates and is connected with spheroid (5), draw-in groove (15) have been seted up to the lateral wall roof of spheroid (5), the inside wall joint of draw-in groove (15) has tongue (6), the top of valve body (2) is equipped with pneumatic actuator (8), valve rod (12) are installed to the output of pneumatic actuator (8), the one end of valve rod (12) with the last fixed surface of tongue (6) is connected, packing chamber (13) have been seted up to the upper surface of valve body (2), the inside wall fixedly connected with packing box (7) of packing chamber (13), third through-hole (20) have been seted up to the lateral wall of spheroid (5).

2. A pneumatic ball valve as claimed in claim 1, wherein: and a sealing ring (3) is bonded on one side of the valve body (2).

3. A pneumatic ball valve as claimed in claim 1, wherein: the upper surface of the valve body (2) is fixedly connected with a support (9), the top of the support (9) is fixedly connected with the lower surface of the pneumatic actuator (8), and one end of the valve rod (12) penetrates through the support (9).

4. A pneumatic ball valve as claimed in claim 1, wherein: and the inner side wall of the packing cavity (13) is fixedly connected with a packing bottom ring (14).

5. A pneumatic ball valve as claimed in claim 3, wherein: second through-hole (19) have been seted up to the lower surface of support (9), inside wall fixedly connected with pressure cover (10) of second through-hole (19), first through-hole (11) have been seted up to the upper surface of pressure cover (10), the inside wall of first through-hole (11) with the lateral wall of valve rod (12) rotates and is connected.

6. A pneumatic ball valve as claimed in claim 1, wherein: the valve cover (1) and one side of the valve body (2) are both provided with threaded through holes (16), the inner side wall of each threaded through hole (16) is in threaded connection with a bolt (17), and the outer side wall of each bolt (17) is in threaded connection with a nut (18).