CN212718136U

CN212718136U - Metal sealing floating ball valve with spring seat

Info

Publication number: CN212718136U
Application number: CN202021455245.0U
Authority: CN
Inventors: 姚伟; 黄健; 佘恩亮
Original assignee: Sichuan Saier Valve Mfg Co ltd
Current assignee: Sichuan Saier Valve Mfg Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-03-16
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a take metal seal ball valve that floats of spring holder, which comprises a valve body, the inside of valve body is provided with the disk seat, one side of disk seat is provided with the filler, the other end of filler is provided with the spring holder, one side of spring holder is provided with wave spring, the opposite side of disk seat is provided with the spheroid, spheroidal upper end is run through and is provided with the valve rod, the both sides side of valve rod all is provided with footstep bearing, the both sides of valve rod all are provided with the filler, the lateral wall of valve rod is provided with the packing ring, the other end of packing ring is provided with gland, one side of valve rod is provided with the stopper, the lateral wall of valve rod is provided with axle circlip, axle circlip's upper end is provided with the handle. The utility model discloses in, all adopt the little increase life of frictional force, operating temperature height has the fire prevention function moreover, and the security is more reliable.

Description

Metal sealing floating ball valve with spring seat

Technical Field

The utility model relates to the technical field of valves, especially, relate to a take metal seal ball valve that floats of spring holder.

Background

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 moment. The ball valve is most suitable for being used as a switch and a stop valve.

Traditional ball valve need can satisfy sealed demand in the highly compressed condition when using, but the increase of spheroidal wearing and tearing and the open and close moment of torsion can be caused to the highly compressed condition, then causes the leakage of ball valve, has increased the spoilage of ball valve. And the ball valve is worn after a long time, so that the service life is prolonged by reducing friction, and fire can be caught in some places, so that fire cannot be prevented, and great loss is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the metal seal ball valve that floats of a take spring holder that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a metal sealing floating ball valve with a spring seat comprises a valve body, wherein a valve seat is arranged in the valve body, a first filler is arranged on one side of the valve seat, a spring seat is arranged at the other end of the first filler, a wave spring is arranged on one side of the spring seat, a ball body is arranged on the other side of the valve seat, a left body is arranged on one side of the valve body, a middle cavity gasket is fixedly connected to one side of the left body close to the valve body, a valve rod is arranged at the upper end of the ball body in a penetrating mode, a bolt is arranged at the other end of the valve rod, thrust bearings are arranged on two side of the valve rod respectively, a second filler is arranged on two sides of the valve rod respectively, a filler pressing ring is arranged on the side wall of the valve rod and is penetrated by the valve rod, a filler pressing cover is arranged, the lateral wall of valve rod is provided with the circlip for the axle, the upper end of circlip for the axle is provided with the handle, and the handle is run through by the valve rod, the upper end of handle is provided with the handle packing ring, and the handle packing ring is run through by the valve rod.

As a further description of the above technical solution:

and the upper end of the valve body and two sides of the handle are both provided with hexagon socket head cap screws of the packing gland.

As a further description of the above technical solution:

the second packing is arranged above the thrust bearing, and the packing press ring is arranged above the second packing.

As a further description of the above technical solution:

the limiting block is arranged above the packing gland, and the elastic retainer ring for the shaft is arranged above the limiting block.

As a further description of the above technical solution:

a nut is arranged on one side of the left body, a stud is arranged at the other end of the nut, and the stud penetrates through the left body.

As a further description of the above technical solution:

the handle gasket is made of metal.

The utility model discloses following beneficial effect has:

1. the thrust bearing reduces the friction torque of the valve rod, so that the valve rod can be operated flexibly and balancedly for a long time, the sealing performance of the valve seat is good, the valve seat and the ball body are spray-welded with WC, the roughness of the sealing pair is over 0.1 after precision processing, the friction torque is small, and the service life is long.

2. The valve seat and the valve body are sealed by adopting graphite packing, the wave spring is automatically compensated and pre-tightened, the sealing is reliable, the valve seat, the ball body and the valve rod are in direct metal contact, and the valve seat, the ball body and the valve rod have the function of static electricity prevention.

3. The lower-mounted valve rod and the convex step of the head part of the valve rod prevent the valve rod from being sprayed out, if a fire disaster causes the damage of the sealing of the valve rod, the convex step can also form metal contact with the valve body to ensure the sealing of the valve rod, the valve seat and the valve body are sealed by adopting graphite packing, the wave spring is automatically compensated and pre-tightened, the sealing is reliable, the valve rod is sealed by adopting the graphite packing, the middle cavity is sealed by adopting a graphite winding gasket, the service temperature is high, and the fire-

Drawings

Fig. 1 is a cross-sectional view of a metal sealing floating ball valve with a spring seat according to the present invention;

fig. 2 is a top view of the metal sealing floating ball valve with a spring seat according to the present invention.

Illustration of the drawings:

1. a valve body; 2. a wave spring; 3. a spring seat; 4. a first filler; 5. a valve seat; 6. a sphere; 7. a middle cavity gasket; 8. a nut; 9. a stud; 10. a valve stem; 11. a left body; 12. a thrust bearing; 13. a second filler; 14. packing and pressing a ring; 15. a packing gland; 16. a limiting block; 17. a circlip for the shaft; 18. a handle; 19. a handle gasket; 20. a bolt; 21. and a hexagon socket head cap screw of the packing gland.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the present invention provides an embodiment: a metal sealing floating ball valve with a spring seat comprises a valve body 1, a valve seat 5 is arranged inside the valve body 1, a first filler 4 is arranged on one side of the valve seat 5, a spring seat 3 is arranged at the other end of the first filler 4, a wave spring 2 is arranged on one side of the spring seat 3, the valve seat 5 and the valve body 1 are sealed by graphite filler, the wave spring 2 is automatically compensated and pre-tightened, a ball body 6 is arranged on the other side of the valve seat 5, WC is spray-welded between the valve seat 5 and the ball body 6, a sealing pair is precisely machined to have a roughness of more than 0.1, the friction torque is small, the service life is long, a left body 11 is arranged on one side of the valve body 1, a middle cavity gasket 7 is fixedly connected to one side of the left body 11 and a position close to the valve body 1, a valve rod 10 is arranged at the upper end of the ball body 6 in, still can form metal contact between protruding rank and valve body 1, ensure that valve rod 10 is sealed, the other end of valve rod 10 is provided with bolt 20, the both sides side of valve rod 10 all is provided with footstep bearing 12, the both sides of valve rod 10 all are provided with second packing 13, the lateral wall of valve rod 10 is provided with packing clamping ring 14, and packing clamping ring 14 is run through by valve rod 10, the other end of packing clamping ring 14 is provided with gland 15, and gland 15 is run through by valve rod 10, one side of valve rod 10 is provided with stopper 16, the lateral wall of valve rod 10 is provided with for the axle circlip 17, the upper end of for the axle circlip 17 is provided with handle 18, and handle 18 is run through by valve rod 10, the upper end of handle 18 is provided with handle packing ring 19, and handle packing ring 19 is run through.

The upper end of the valve body 1 and two sides of the handle 18 are provided with hexagon socket head cap screws 21, the second packing 13 is arranged above the thrust bearing 12, the packing press ring 14 is arranged above the second packing 13, the limiting block 16 is arranged above the packing press cover 15, the shaft elastic check ring 17 is arranged above the limiting block 16, one side of the left body 11 is provided with a nut 8, the other end of the nut 8 is provided with a stud 9, the stud 9 penetrates through the left body 11, the left body 11 and the valve body 1 are fixed together through the action of the stud 9, and the handle gasket 19 is made of metal.

The working principle is as follows: handle 18 passes through bolt 20 and is in the same place fixed between valve rod 10, handle 18's rotation drives valve rod 10's rotation, the axle is responsible for the degree of wear that protects handle 18 with circlip 17, stopper 16 can fix handle 18's rotational position, valve rod 10's rotation also begins to rotate with it fixed connection's spheroid 6 together, valve seat 5 draws close because wave spring 2's effect, can flow a space that can pass through, when needing to close the valve, rotation handle 18, a rotation handle for drive valve rod 10, and then promote spheroid 6's rotation, close the passageway.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a take metal seal ball valve that floats of spring holder, includes valve body (1), its characterized in that: the novel valve is characterized in that a valve seat (5) is arranged in the valve body (1), a first filler (4) is arranged on one side of the valve seat (5), a spring seat (3) is arranged at the other end of the first filler (4), a wave spring (2) is arranged on one side of the spring seat (3), a ball body (6) is arranged on the other side of the valve seat (5), a left body (11) is arranged on one side of the valve body (1), a middle cavity gasket (7) is fixedly connected to one side of the left body (11) and close to the valve body (1), a valve rod (10) is arranged at the upper end of the ball body (6) in a penetrating mode, a bolt (20) is arranged at the other end of the valve rod (10), thrust bearings (12) are arranged on the two side of the valve rod (10), second fillers (13) are arranged on the two sides of the valve rod (10, and packing clamping ring (14) is run through by valve rod (10), the other end of packing clamping ring (14) is provided with gland (15), and gland (15) are run through by valve rod (10), one side of valve rod (10) is provided with stopper (16), the lateral wall of valve rod (10) is provided with axle circlip (17), the upper end of axle circlip (17) is provided with handle (18), and handle (18) are run through by valve rod (10), the upper end of handle (18) is provided with handle packing ring (19), and handle packing ring (19) are run through by valve rod (10).

2. The metal seal floating ball valve with the spring seat according to claim 1, wherein: and hexagonal socket head cap screws (21) are arranged at the upper end of the valve body (1) and on two sides of the handle (18).

3. The metal seal floating ball valve with the spring seat according to claim 1, wherein: the second packing (13) is arranged above the thrust bearing (12), and the packing press ring (14) is arranged above the second packing (13).

4. The metal seal floating ball valve with the spring seat according to claim 1, wherein: the limiting block (16) is arranged above the packing gland (15), and the elastic retainer ring (17) for the shaft is arranged above the limiting block (16).

5. The metal seal floating ball valve with the spring seat according to claim 1, wherein: a nut (8) is arranged on one side of the left body (11), a stud (9) is arranged at the other end of the nut (8), and the stud (9) penetrates through the left body (11).

6. The metal seal floating ball valve with the spring seat according to claim 1, wherein: the handle gasket (19) is made of metal.