CN213512294U

CN213512294U - Fixed ball valve casting

Info

Publication number: CN213512294U
Application number: CN202022218472.8U
Authority: CN
Inventors: 罗贤龙; 季知燕; 乐勇明
Original assignee: Zhejiang Lin Jia Changlong Valve Casting Co ltd
Current assignee: Zhejiang Lin Jia Changlong Valve Casting Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-06-22
Anticipated expiration: 2030-10-09

Abstract

The utility model relates to the field of valve casting, in particular to a fixed ball valve casting, which comprises a valve body, wherein a valve cavity is arranged in the valve body, a liquid inlet and a liquid outlet are respectively arranged at the left side and the right side of the valve body, a liquid outlet channel is arranged between the liquid outlet and the valve cavity, an upper valve rod through hole communicated with the valve cavity is arranged at the upper side of the valve body, a valve rod base is arranged at the lower side of the valve body, a lower valve rod through hole coaxially arranged with the upper valve rod through hole is arranged in the valve rod base, and a reinforcing mechanism is arranged on the valve; the integral strength of a ball valve casting can be effectively improved, cracks are not easy to generate in the subsequent processing and using processes, the ball valve is not easy to damage, the safety of workers is ensured, and the ball valve casting is suitable for batch production; the sealing structure has the characteristics of reasonable structural design, good sealing effect, easy assembly and the like; the valve body is ensured to be still spaced with the valve core after being severely contracted, the inner wall of the valve body caused by contraction is effectively prevented from colliding with the valve core, the service life is long, and the using effect is good.

Description

Fixed ball valve casting

Technical Field

The utility model relates to a valve casting field, in particular to fixed ball valve foundry goods.

Background

The ball valve is a valve in which an opening and closing part (a ball body) is driven by a valve rod and rotates around the axis of the ball valve, and can be used for regulating and controlling fluid. The ball valve can be divided into: pneumatic ball valves, electric ball valves, manual ball valves. The valve rod through hole of the ball valve is used for placing a valve rod, and the performance of cutting off, distributing and changing the flowing direction of a medium of the ball valve is directly influenced by the matching of the valve rod and a valve body. The fixed ball valve is provided with a floating valve seat, and the valve seat moves after being pressed by a medium, so that the sealing ring is tightly pressed on the ball body to ensure sealing. The upper and lower shafts of the ball are usually provided with bearings, so that the operation torque is small, and the ball valve is suitable for high-pressure and large-caliber valves.

In the prior art, a ball valve casting rarely makes auxiliary measures on a connecting part between a valve rod and a valve body, the casting is easy to shrink in the forming process, the stable transition between a through hole of the valve rod and a cavity is directly influenced, the matching of the ball valve and the valve rod is influenced, and the performances of cutting, distributing and changing the flowing direction of a medium of the ball valve are finally influenced, so that the overall strength of the ball valve casting is low, when the ball valve casting is subsequently processed or used, cracks are easily generated at the connecting part of the through hole and a spherical cavity, the ball valve is damaged, the ball valve is easily abraded or even broken, unnecessary loss is caused, and the safety of operators is threatened; when the valve body is used in media with higher hardness, such as particles, powder and the like, the sealing effect of the valve body can be influenced by long-time scouring and corrosion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, the joint of the through hole and the spherical cavity is easy to crack, which causes the damage of the ball valve, is easy to wear and even break, causes unnecessary loss and threatens the safety of operators; when the valve is used in high-hardness media such as particles and powder, the sealing effect of the valve body can be influenced by long-time scouring and corrosion, and a fixed ball valve casting with an optimized structure is further provided.

The technical scheme that the utility model provides a, provide a fixed ball valve foundry goods, which comprises a valve body, be equipped with the valve pocket in the valve body, the valve body left and right sides is equipped with into liquid mouth and liquid outlet respectively, be equipped with liquid outlet channel between liquid outlet and valve pocket, the valve body upside is equipped with the last valve rod through-hole that communicates with the valve pocket, the valve body downside is equipped with the valve rod base, be equipped with the lower valve rod through-hole with the coaxial setting of last valve rod through-hole in the valve rod base, be equipped with strengthening mechanism on the valve body in the last valve rod through-hole outside.

Preferably, the reinforcing mechanism is a plurality of reinforcing blocks, and the reinforcing blocks are uniformly distributed outside the through hole of the valve rod.

Preferably, a plurality of the reinforcing blocks are in a right-angled trapezoid shape, and the lower bottom edges of the reinforcing blocks are fixedly connected with the outer sides of the through holes of the valve rod.

Preferably, the bottom angle a of several of the reinforcing blocks is 45 °.

Preferably, a valve seat is arranged at the joint of the liquid outlet channel and the valve cavity, and a plurality of slotted holes are formed in the valve seat towards the liquid outlet.

Preferably, a first sealing ring is arranged at the joint of the valve seat and the liquid outlet channel.

Preferably, a packing layer, a packing pressing sleeve and a sealing layer are sequentially arranged on the outer side of the through hole of the upper valve rod from inside to outside of the valve cavity.

Preferably, a gasket is arranged at the joint of the bottom of the lower valve rod through hole and the valve rod base.

Preferably, the liquid inlet is sequentially provided with a support ring and a second sealing ring from inside to outside of the valve cavity.

Preferably, a flange hole is arranged on the valve body outside the liquid outlet.

Compared with the prior art, the utility model, the beneficial effect who brings is: the valve body outside the through hole of the upper valve rod is provided with the plurality of reinforcing blocks, so that the overall strength of a ball valve casting can be effectively improved, cracks are not easy to generate in the subsequent processing and using processes, the ball valve is not easy to damage, the safety of workers is ensured, the service life of the ball valve casting is prolonged, and the ball valve casting is suitable for batch production; by improving the sealing structure of the fixed ball valve, the ball valve has the characteristics of reasonable structural design, good sealing effect, easy assembly and the like; through setting up the slotted hole, reach the effect of keeping away the sky, guarantee that the valve body still leaves the space with the case after violent shrink, prevent effectively that the inner wall that the valve body caused because the shrink from bumping with the case, ensure that the case is complete in structure, wearing and tearing are little at normal use in-process, long service life and excellent in use effect.

Drawings

Fig. 1 is a schematic structural section view of the fixed ball valve of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following examples, but the scope of the present invention is not limited thereto.

As shown in fig. 1, the utility model relates to a fixed ball valve foundry goods, including valve body 1, be equipped with valve pocket 2 in the valve body 1, the 1 left and right sides of valve body is equipped with into liquid mouth 3 and liquid outlet 4 respectively, be equipped with liquid outlet passage 5 between liquid outlet 4 and valve pocket 2, 1 upside of valve body is equipped with last valve rod through-hole 6 with valve pocket 2 intercommunication, 1 downside of valve body is equipped with valve rod base 7, be equipped with the lower valve rod through-hole 8 with the coaxial setting of last valve rod through-hole 6 in the valve rod base 7, be equipped with reinforcing mechanism on the valve body 1 in the 6 outsides of last valve rod through-hole.

The utility model discloses in, the medium flows in from going into liquid mouth 3, flows out from liquid outlet 4.

The utility model discloses in, strengthening mechanism is a plurality of boss 9, and is a plurality of boss 9 evenly distributed is in the valve rod through-hole 6 outsides.

In the utility model, the number of the reinforcing blocks 9 is 4, the axes of the valve rod through holes 6 are respectively arranged in pairwise symmetry, and the 4 reinforcing blocks 9 are arranged in pairwise opposite arrangement in a cross shape; the number of said reinforcing blocks 9 can be set by the person skilled in the art according to the actual requirements.

The utility model discloses in, it is a plurality of boss 9 is right trapezoid shape, the lower base and the 6 outside fixed connection of valve rod through-hole of boss 9.

The utility model discloses in, it is a plurality of the base angle a of boss 9 is 45.

The utility model discloses in, 45 the 9 base angles of boss that set up, boss 9 comprises rectangle and isosceles right triangle promptly, the triangle structure is the most stable, so the 9 departments of boss that the base angle set up for 45 make ball valve foundry goods bulk strength improve, the wall thickness of the valve body 1 that 6 peripheries of valve stem through-hole correspond on the multiplicable, balanced partial stress increases the intensity of this department, thereby make ball valve foundry goods bulk strength improve, when follow-up processing or use, be difficult for producing the crackle, also be difficult for causing the damage of ball valve.

The utility model discloses in, liquid outlet channel 5 is equipped with disk seat 10 with 2 junctions of valve pocket, disk seat 10 is equipped with a plurality of slotted holes 11 towards liquid outlet 4.

The utility model discloses in, the quantity of slotted hole 11 is 4, and the equidistance is arranged and is set up, reaches the effect of keeping away the sky, guarantees that valve body 1 still leaves the space with the case after violent shrink, prevents effectively that inner wall that valve body 1 caused because the shrink from bumping with the case mutually, ensures that the case is complete, wearing and tearing are little at the in-process structure of normal use, long service life and excellent in use effect.

The utility model discloses in, also can set up spring and fire prevention filler in slotted hole 11, when the conflagration breaing out, the fire prevention filler will be pushed the ball valve contact and block the pipeline fluid under the pretightning force effect of spring, the interior hourglass in the at utmost reduces the valve passage.

In the utility model discloses, the disk seat 10 is equipped with first sealing washer 12 with the play liquid channel 5 junction.

The utility model discloses in, first sealing washer 12 is O type sealing washer, and the material of sealing washer can be materials such as butyl rubber, acrylic ester, and concrete material can be set up by oneself according to the difference of flowing medium by the technical personnel in the field.

The utility model discloses in, go up the outside of valve stem through-hole 6 and be equipped with packing layer 13, packing pressure cover 14 and sealing layer 15 from inside to outside in proper order from valve pocket 2.

The utility model discloses in, packing layer 13 generally adopts asbestos, graphite etc. to strengthen sealing performance, prevents that the valve from carrying the medium and leaking outward.

The utility model discloses in, sealing layer 15's material can be materials such as butyl rubber, acrylic ester, and specific material can be set up by oneself according to the difference of flowing medium by the technical personnel in the field.

The utility model discloses in, lower 8 bottoms of valve rod through-holes and valve rod base 7 junctions are equipped with gasket 16.

The utility model discloses in, set up gasket 16 through 8 bottoms of lower valve rod through-holes and valve rod base 7 junctions, multiplicable valve rod base 7's wearability, after the use number of times has been more, gasket 16 wearing and tearing can directly change gasket 16, need not to change valve body 1, practice thrift the cost.

The utility model discloses in, go into liquid mouth 3 from valve pocket 2 from interior to exterior and be equipped with lock ring 18 and second sealing washer 17 in proper order.

The utility model discloses in, the intensity of income liquid mouth 3 can be strengthened to lock ring 18, increases structural stability, improves the durability.

The utility model discloses in, second sealing washer 17 is O type sealing washer, and the material of sealing washer can be materials such as butyl rubber, acrylic ester, and concrete material can be set up by oneself according to the difference of flowing medium by the technical personnel in the field.

The utility model discloses in, be equipped with flange hole 19 on the valve body 1 in the 4 outsides of liquid outlet.

The utility model discloses in, flange joint has characteristics such as dismantle convenience, intensity height, sealing performance are good.

Compared with the prior art, the utility model, the beneficial effect who brings is: the valve body 1 outside the upper valve rod through hole 6 is provided with the plurality of reinforcing blocks 9, so that the overall strength of a ball valve casting can be effectively improved, cracks are not easy to generate in the subsequent processing and using processes, the ball valve is not easy to damage, the safety of workers is ensured, the service life of the ball valve casting is prolonged, and the ball valve casting is suitable for batch production; by improving the sealing structure of the fixed ball valve, the ball valve has the characteristics of reasonable structural design, good sealing effect, easy assembly and the like; through setting up slotted hole 11, reach the effect of keeping away the sky, guarantee that valve body 1 still leaves the space with the case after violent shrink, prevent effectively that inner wall and case that valve body 1 caused because of the shrink from colliding, ensure that the case is complete in normal use in-process structure, wearing and tearing are little, long service life and excellent in use effect.

Claims

1. A fixed ball valve foundry goods, includes valve body (1), its characterized in that: be equipped with valve pocket (2) in valve body (1), the valve body (1) left and right sides is equipped with into liquid mouth (3) and liquid outlet (4) respectively, be equipped with liquid outlet passage (5) between liquid outlet (4) and valve pocket (2), valve body (1) upside is equipped with last valve rod through-hole (6) with valve pocket (2) intercommunication, valve body (1) downside is equipped with valve rod base (7), be equipped with in valve rod base (7) with lower valve rod through-hole (8) of the coaxial setting of last valve rod through-hole (6), be equipped with on the valve body (1) in the last valve rod through-hole (6) outside and strengthen the mechanism.

2. A stationary ball valve casting according to claim 1, wherein: the reinforcing mechanism is a plurality of reinforcing blocks (9), and the reinforcing blocks (9) are uniformly distributed on the outer side of the upper valve rod through hole (6).

3. A stationary ball valve casting according to claim 2, wherein: the reinforcing blocks (9) are in a right-angle trapezoid shape, and the lower bottom edges of the reinforcing blocks (9) are fixedly connected with the outer side of the upper valve stem through hole (6).

4. A stationary ball valve casting according to claim 3 wherein: the bottom angle a of a plurality of the reinforcing blocks (9) is 45 degrees.

5. A stationary ball valve casting according to claim 1, wherein: a valve seat (10) is arranged at the joint of the liquid outlet channel (5) and the valve cavity (2), and a plurality of slotted holes (11) are formed in the valve seat (10) towards the liquid outlet (4).

6. A stationary ball valve casting according to claim 5, wherein: and a first sealing ring (12) is arranged at the joint of the valve seat (10) and the liquid outlet channel (5).

7. A stationary ball valve casting according to claim 1, wherein: and a packing layer (13), a packing pressing sleeve (14) and a sealing layer (15) are sequentially arranged on the outer side of the upper valve rod through hole (6) from inside to outside of the valve cavity (2).

8. A stationary ball valve casting according to claim 1, wherein: and a gasket (16) is arranged at the joint of the bottom of the lower valve rod through hole (8) and the valve rod base (7).

9. A stationary ball valve casting according to claim 1, wherein: the liquid inlet (3) is sequentially provided with a support ring (18) and a second sealing ring (17) from inside to outside from the valve cavity (2).

10. A stationary ball valve casting according to claim 1, wherein: and a flange hole (19) is formed in the valve body (1) on the outer side of the liquid outlet (4).