CN210318619U

CN210318619U - Fireproof anti-static ball valve

Info

Publication number: CN210318619U
Application number: CN201921171838.1U
Authority: CN
Inventors: 朱粉华; 范小娟; 邹喜; 张千; 唐雪松
Original assignee: Wuxi Xhk Valve Co ltd
Current assignee: Wuxi Xhk Valve Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-14
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a static ball valve is prevented in fire prevention, including cylinder, support, valve body and valve body cap, a cylinder side fixedly connected with solenoid valve, the cylinder is located the adjacent one side fixedly connected with relief pressure valve of solenoid valve, and the cylinder top is equipped with limit switch, and the cylinder bottom can be dismantled through hexagon bolt and be connected with the support, and beneficial effect is: the valve rod of the valve has a flying-out prevention design, and a shoulder is designed between the valve body and the valve rod to prevent the valve rod from flying out; the sealing performance is excellent, the service life is long, the sealing surfaces of the ball body and the valve seat are isolated from a medium when the valve is fully opened or fully closed, and the corrosion of the sealing surface of the valve can not be caused when the medium passes through the valve; meanwhile, once the valve is ignited, the ball body can contact with the metal valve seat (valve body) by medium force to realize sealing, so that the fire does not spread to a downstream pipeline; when static electricity generated after the ball body and the soft sealing valve seat are rubbed, the static electricity can be introduced into the ground through the arranged static electricity channel, so that the purpose of removing the static electricity is achieved.

Description

Fireproof anti-static ball valve

Technical Field

The utility model relates to a ball valve, in particular to static ball valve is prevented in fire prevention belongs to valve body equipment technical field.

Background

The existing ball valve is high in machining precision, high in manufacturing cost and poor in sealing effect, and once impurities exist in a pipeline, the valve is easily blocked by the impurities and cannot be opened, and the ball valve is not provided with a fireproof and anti-static function and is not easy to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide the static ball valve is prevented in the fire prevention.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a fireproof and antistatic ball valve, which comprises a cylinder, a bracket, a valve body and a valve body cap, wherein a solenoid valve is fixedly connected with one side surface of the cylinder, a pressure reducing valve is fixedly connected at one side of the cylinder adjacent to the electromagnetic valve, a limit switch is arranged at the top end of the cylinder, the bottom end of the cylinder is detachably connected with a bracket through a hexagon bolt, a connecting shaft is arranged in the bracket, one end of the connecting shaft penetrates through the air cylinder and is fixedly connected with the air cylinder, the other end of the connecting shaft is sleeved with a valve rod, one side inside the valve rod is fixedly connected with a plurality of steel balls, the surface of each steel ball is connected with an antistatic spring, one end of the support far away from the air cylinder is detachably connected with a valve body through a stud and a nut, the valve body is positioned in the valve cavity and is internally provided with a ball body, the top end of the ball body is fixedly connected with the bottom end of the valve rod, and one side of the valve body is detachably connected with a valve body cap through a stud and a nut.

As an optimal technical scheme of the utility model, the fixed clamp plate that has inserted in the inside clearance that just is located between valve rod and the support of support, the valve body is inside and just is located under the clamp plate and is equipped with the filler, the filler below is equipped with the packing pad.

As an optimal technical scheme of the utility model, be equipped with the thrust pad between the valve pocket top of valve body and the valve rod bottom.

As a preferred technical scheme of the utility model, the valve pocket of valve body is inside and be located spheroidal left and right sides end and all be equipped with the disk seat.

As an optimal technical scheme of the utility model, design the circular bead between valve rod and the valve body.

The utility model discloses the beneficial effect who reaches is: the series of valves have unique design structure and are suitable for cutting off various fluids such as water, oil and the like; the valve rod of the valve is designed to prevent the valve rod from flying out, and a shoulder is designed between the valve body and the valve rod to prevent the valve rod from flying out; the opening and closing are rapid, and the rotation is only 90 degrees from full opening to full closing; the sealing performance is excellent, the service life is long, the sealing surfaces of the ball body and the valve seat are isolated from a medium when the valve is fully opened or fully closed, and the corrosion of the sealing surface of the valve can not be caused when the medium passes through the valve; meanwhile, once the valve is ignited, the ball body can contact with the metal valve seat (valve body) by medium force to realize sealing, so that the fire does not spread to a downstream pipeline; when static electricity generated after the ball body and the soft sealing valve seat are rubbed, the static electricity can be introduced into the ground through the arranged static electricity channel, so that the purpose of removing the static electricity is achieved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an overall sectional view of the present invention;

fig. 2 is an enlarged view of a of the present invention.

In the figure: 1. a cylinder; 2. an electromagnetic valve; 3. a pressure reducing valve; 4. a limit switch; 5. a support; 6. a valve body; 7. a connecting shaft; 8. a valve stem; 9. a packing press plate; 10. a valve body cap; 11. a sphere; 12. a valve seat; 13. a filler; 14. a filler pad; 15. steel balls; 16. an anti-static spring; 17. a thrust pad.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

As shown in fig. 1-2, the fire-proof and anti-static ball valve comprises a cylinder 1 and a bracket 5, valve body 6 and

valve body cap

10, 1 side fixedly connected with solenoid valve 2 of cylinder, cylinder 1 is located 2 adjacent one side fixedly connected with relief pressure valve 3 of solenoid valve, 1 top of cylinder is equipped with

limit switch

4, 1 bottom of cylinder can dismantle through hex bolts and be connected with support 5, the inside connecting axle 7 that is equipped with of support 5, 7 one end of connecting axle run through cylinder 1 and with 1 fixed connection of cylinder, 7 other pot heads of connecting axle are equipped with valve rod 8, a plurality of steel balls 15 of the inside one side fixedly connected with of

valve rod

8, 15 surfaces of every steel ball all are connected with antistatic spring 16, the one end that cylinder 1 was kept away from to support 5 can be dismantled through double-screw bolt and nut and be connected with valve body 6, valve body 6 is located the valve pocket and is equipped with spheroid 11, the bottom fixed connection of.

Wherein, the inside clearance that just is located between valve rod 8 and the support 5 of support 5 is fixed to be inserted with packing clamp plate 9, and the valve body 6 is inside just to be located packing clamp plate 9 and is equipped with filler 13 under, and filler 13 below is equipped with packing pad 14, realizes sealedly, and plays the fire prevention effect.

Wherein, be equipped with thrust pad 17 between the valve pocket top of valve body 6 and the 8 bottoms of valve rod, be convenient for valve rod 8 and the stable installation of valve body 6.

Wherein, the valve cavity of the valve body 6 is provided with valve seats 12 at the left and right ends of the ball body 11, and the valve seats are matched with the ball body 11 to close the sealing medium.

Wherein, design the circular bead between valve rod 8 and the valve body 6, can prevent valve rod 8 departure.

Specifically, when the utility model is used, the electromagnetic valve 2 is powered, the pressure reducing valve 3 compresses air, the compressed air enters the cylinder 1 through the electromagnetic valve 2, the compressed air pushes the piston in the cylinder 1 to start moving, the piston drives the connecting shaft 7, the connecting shaft 7 drives the valve rod 8 to twist, the valve rod 8 further drives the ball 11 in the valve body 6 to move correspondingly, the ball 11 is communicated with the valve seat 12 in the middle, the ball 11 is sealed with the valve seat 12, the medium is cut off from the valve seat 12, the cut-off function and the communication function of the fluid are realized, the whole novel ball valve has small fluid resistance, the full-bore ball valve basically has no flow resistance, the structure is simple, the volume is small, the weight is light, the ball valve is compact and reliable, the ball valve has two sealing surfaces, the sealing surface material of the existing ball valve is widely made of various plastics, the sealing performance is good, the full, the valve is opened and closed quickly, only 90 degrees of rotation is needed from full opening to full closing, remote control is facilitated, maintenance is convenient, disassembly is convenient, the sealing surfaces of the ball 11 and the valve seat 12 are isolated from media when the valve is opened or closed completely, and the corrosion of the sealing surface of the valve cannot be caused when the media pass through the valve.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The fireproof anti-static ball valve is characterized by comprising a cylinder (1), a support (5), a valve body (6) and a valve body cap (10), wherein a solenoid valve (2) is fixedly connected to one side of the cylinder (1), the side, adjacent to the solenoid valve (2), of the cylinder (1) is fixedly connected with a pressure reducing valve (3), a limit switch (4) is arranged at the top end of the cylinder (1), the support (5) is detachably connected to the bottom end of the cylinder (1) through a hexagonal bolt, a connecting shaft (7) is arranged inside the support (5), one end of the connecting shaft (7) penetrates through the cylinder (1) and is fixedly connected with the cylinder (1), a valve rod (8) is sleeved at the other end of the connecting shaft (7), a plurality of steel balls (15) are fixedly connected to one side inside the valve rod (8), and an anti-static spring, the one end that cylinder (1) was kept away from in support (5) can be dismantled through double-screw bolt and nut and be connected with valve body (6), valve body (6) are located the valve pocket and are equipped with spheroid (11), the bottom fixed connection of spheroid (11) top and valve rod (8), valve body (6) one side can be dismantled through double-screw bolt and nut and be connected with valve body cap (10).

2. A fire-proof and static-free ball valve according to claim 1, characterized in that a packing pressure plate (9) is fixedly inserted into the gap between the valve rod (8) and the support (5) inside the support (5), a packing (13) is arranged under the packing pressure plate (9) inside the valve body (6), and a packing pad (14) is arranged under the packing (13).

3. A fire-proof and static-free ball valve according to claim 1, characterized in that a thrust pad (17) is arranged between the top end of the valve cavity of the valve body (6) and the bottom end of the valve rod (8).

4. A fire-proof and static-free ball valve according to claim 1, characterized in that the valve cavity of the valve body (6) is provided with valve seats (12) at the left and right ends of the ball body (11).

5. A fire and static resistant ball valve according to claim 1, characterized in that a shoulder is designed between the valve stem (8) and the valve body (6).