CN219975437U

CN219975437U - Ball valve with better sealing performance

Info

Publication number: CN219975437U
Application number: CN202321094810.9U
Authority: CN
Inventors: 卓丐强
Original assignee: Zhejiang Fluor Valve Co ltd
Current assignee: Zhejiang Fluor Valve Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-11-07
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses a ball valve with better sealing performance, which comprises a valve body, an opening and closing handle, a valve seat, a valve core and a valve rod, wherein the valve body is provided with a water inlet and a water outlet from left to right, the valve core is arranged between the water inlet and the water outlet, the lower end of the valve rod is connected with the valve core, the upper end of the valve rod is connected with the opening and closing handle, the valve seat comprises a first valve seat and a second valve seat, the first valve seat and the second valve seat are respectively arranged at two sides of the valve body corresponding to the valve core, a limiting seat and a pushing seat are further arranged in the valve body corresponding to the water inlet from outside to inside, a spring acting on the first valve seat is arranged on the pushing seat, the periphery of the limiting seat is in threaded fit with the inner periphery of the water inlet, and the inner end of the limiting seat is abutted against the outer end of the pushing seat.

Description

Ball valve with better sealing performance

Technical Field

The utility model relates to the field of valves, in particular to a ball valve with better sealing performance.

Background

The ball valve has wide application in the fields of petroleum, chemical industry, energy, mineral products and the like, is an important component part in industrial pipelines, is mainly used for controlling the on-off of the pipelines, has the advantages of compact structure, easy operation and maintenance, and is suitable for water, solvents, acid and natural gas working mediums.

At present, in the in-process of using of ball valves in the market, because the ball valve is opened and closed the disk seat and can produce friction with the case, in the past, the disk seat can produce wearing and tearing with the position that the case contacted, and then makes and produces the clearance between disk seat and the case, leads to ball valve leakproofness inefficacy, and the life of ball valve reduces.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the ball valve, when the sealing surface of the valve seat 3 is worn, the valve seat 3 automatically abuts against the valve core 4 to make up the gap between the valve core 4, and the ball valve has good sealing performance when the valve is closed. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a ball valve that leakproofness is better, includes valve body 1, opening and close handle 2, disk seat 3, case 4, valve rod 5, valve body 1 is from left to right equipped with water inlet 6 and delivery port 7, case 4 is established between water inlet 6 and delivery port 7 valve rod 5 lower extreme is connected with case 4, valve rod 5 upper end is connected characterized by with opening and close handle 2: the valve seat 3 comprises a first valve seat 8 and a second valve seat 9, the first valve seat 8 and the second valve seat 9 are respectively arranged on two sides of the valve body 1 corresponding to the valve core 4, a limiting seat 10 and a pushing seat 11 are further arranged in the valve body 1 corresponding to the water inlet 6 from outside to inside, and in the embodiment, the internal diameters of the limiting seat 10, the pushing seat 11 and the first valve seat 8 are the same. The spring 12 acting on the first valve seat 8 is arranged on the pushing seat 11, the periphery of the limiting seat 10 is in threaded fit with the inner periphery of the water inlet 6, and the inner end of the limiting seat 10 is abutted against the outer end of the pushing seat 11.

Through adopting above-mentioned technical scheme, when the sealed face of disk seat 3 receives wearing and tearing, spring 12 can disk seat 3 impel to case 4, compensate the clearance with case 4 to make the valve possess good leakproofness when closing, extension valve life.

The utility model is further provided with: the first valve seat 8 is provided with at least 4 first round holes 13, the pushing seat 11 is provided with second round holes 14 corresponding to the first round holes 13 of the first valve seat 8 one by one, the number of the springs 12 is the same as that of the first round holes 13, and two ends of the springs 12 are respectively embedded in the corresponding first round holes 13 and second round holes 14.

By adopting the technical scheme, the spring 12 is prevented from being subjected to torsion force, so that the spring 12 is deformed in the direction deviating from the central axis, and the spring 12 is damaged.

The utility model is further provided with: the right end face of the pushing seat 11 is provided with at least 2 positioning flanges 15, a positioning groove 16 matched with the positioning flanges 15 is formed in the water inlet 6 of the valve body 1, and the axial depth of the positioning groove 16 of the water inlet 6 is longer than the axial length of the positioning flanges 15 of the pushing seat 11.

Through adopting above-mentioned technical scheme, when installing the valve, spacing seat 10 screws and can not drive the rotation of pushing the seat 11, can not be because of positioning groove 16 and positioning flange 15 support tightly, lead to spacing seat 10 and pushing the seat 11 mounted position and take place the skew.

The utility model is further provided with: the limiting seat 10 is provided with a limiting flange 17 extending towards the periphery, and a limiting groove 18 matched with the limiting flange 17 is arranged at the position of the valve body 1 corresponding to the outer end of the water inlet 6.

By adopting the technical scheme, the installation positions of the limiting seat 10 and the pushing seat 11 can be kept unchanged, and the pressure of the valve seat 3 on the valve core 4 is prevented from changing due to the change of the installation position of the pushing seat 11.

The utility model is further provided with: the left end face of the limit flange 17 is provided with a third round hole 19 for assisting the rotation of the limit seat 10.

Through adopting above-mentioned technical scheme, can use the round bar instrument that agrees with mutually to unscrew and screw spacing seat 10, the installation is more convenient firm.

The utility model is further provided with: the valve body 1 is divided into a first valve body 20 and a second valve body 21, and the first valve body 20 and the second valve body 21 are connected by bolts.

By adopting the technical scheme, the valve body 1 is more convenient to install and detach.

The utility model further provides the following steps: the periphery of the first valve seat 8 is provided with a first groove 23, a first sealing ring 24 is arranged in the first groove 23, the first sealing ring 24 is in sealing fit with the inner wall of the valve body 1 corresponding to the water inlet 6, the periphery of the second valve seat 9 is provided with a second groove 25, a second sealing ring 26 is arranged in the second groove 25, and the second sealing ring 26 is in sealing fit with the inner wall of the valve body 1 corresponding to the water inlet 6.

By adopting the technical scheme, the tightness between the valve seat 3 and the valve body 1 is improved, and medium leakage from a gap between the valve seat 3 and the valve body 1 is avoided when the valve is closed.

Drawings

FIG. 1 is a schematic diagram of the structure of the present embodiment;

fig. 2 is a schematic structural view of the pushing seat in the present embodiment;

fig. 3 is a schematic structural diagram of a limiting seat in the present embodiment;

fig. 4 is an enlarged view of a portion a of fig. 1.

In the attached drawings, 1, a valve body; 2. opening and closing a handle; 3. a valve seat; 4. a valve core; 5. a valve stem;

6. a water inlet; 7. a water outlet; 8. a first valve seat; 9. a second valve seat; 10. a limit seat; 11. a pushing seat; 12. a spring; 13. a first round hole; 14. a second round hole; 15. positioning the flange; 16. a positioning groove; 17. a limit flange; 18. a limit groove; 19. a third round hole; 20. a first valve body; 21. a second valve body; 22. a valve body sealing ring; 23. a first groove; 24. a first seal ring; 25. a second groove; 26. and a second sealing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a ball valve that leakproofness is better, is shown as fig. 1 ~ 4, includes valve body 1, opening and close handle 2, disk seat 3, case 4, valve rod 5, and valve body 1 still is equipped with water inlet 6 and delivery port 7 from left to right, and case 4 is established between water inlet 6 and delivery port 7 valve rod 5 lower extreme is connected with case 4, and valve rod 5 upper end is connected with opening and close handle 2, and disk seat 3 includes first disk seat 8 and second disk seat 9, and first disk seat 8 and second disk seat 9 are installed respectively in valve body 1 and are corresponded the both sides of case 4, still are equipped with spacing seat 10 and pushing seat 11 in the position that corresponds water inlet 6 in the valve body 1 from outside to in, spacing seat 10, pushing seat 11 and first disk seat 8 internal diameter are the same. The pushing seat 11 is provided with a pushing seat which is tightly propped against the inner end of the first valve seat 8 and the outer end of the pushing seat 11. Therefore, when the sealing surface of the valve seat 3 is worn, the valve seat 3 can automatically abut against the valve core 4 to make up a gap between the valve core 4, and the service life of the valve is prolonged.

As shown in fig. 4, the first valve seat 8 is provided with at least 4 first round holes 13, the number of the pushing seats 11 is 4, the number of the pushing seats 11 is equal to the number of the first round holes 13, the number of the springs 12 is equal to the number of the first round holes 13, the two ends of the springs 12 are respectively embedded in the corresponding first round holes 13 and the corresponding second round holes 14, torsion force of the springs 12 is avoided, the springs 12 are prevented from being deformed in the direction deviating from the central axis, so that the springs 12 are damaged, the service life of the springs 12 is prolonged, and the springs 12 cannot be compressed to a compression limit position when the first valve seat 8 is attached to the pushing seats 11, so that the springs 12 are prevented from being damaged.

As shown in figure 4, the right end face of the pushing seat 11 is provided with at least 2 positioning flanges 15, the number of the positioning flanges 15 is 2, the water inlet 6 of the valve body 1 is internally provided with positioning grooves 16 matched with the positioning flanges 15, and the axial depth of the positioning grooves 16 of the water inlet 6 is longer than the axial length of the positioning flanges 15 of the pushing seat 11, so that the position of the pushing seat 11 is not deviated due to the fact that the positioning flanges 15 are matched with the positioning grooves 16 during installation.

As shown in fig. 1, the limiting seat 10 is provided with a limiting flange 17 extending towards the periphery, and a limiting groove 18 matched with the limiting flange 17 is arranged at the position of the valve body 1 corresponding to the outer end of the water inlet 6, so that the fixing of the installation positions of the limiting seat 10 and the pushing seat 11 is ensured, and the pressure of the valve seat 3 on the valve core 4 is prevented from changing due to the change of the installation position of the pushing seat 11.

As shown in fig. 1, the left end face of the limit flange 17 is provided with 2 third round holes 19 for assisting in rotating the limit seat 10, and the limit seat 10 can be screwed and unscrewed more conveniently by using matched round bars in the embodiment, so that the installation is more convenient and reliable.

As shown in fig. 1, the valve body 1 is divided into a first valve body 20 and a second valve body 21, the first valve body 20 and the second valve body 21 are connected through bolts, and a sealing ring is clamped between the first valve body 20 and the second valve body 21, so that the valve is more convenient to install and detach.

As shown in fig. 1, the periphery of the first valve seat 8 is provided with a first groove 23, a first sealing ring 24 is arranged in the first groove 23, the first sealing ring 24 is in sealing fit with the inner wall of the valve body 1 corresponding to the water inlet 6, the periphery of the second valve seat 9 is provided with a second groove 25, a second sealing ring 26 is arranged in the second groove 25, the second sealing ring 26 is in sealing fit with the inner wall of the valve body 1 corresponding to the water inlet 6, and the sealing performance between the valve seat 3 and the valve body 1 is enhanced.

Claims

1. The utility model provides a ball valve that leakproofness is better, includes valve body (1), opening and close handle (2), disk seat (3), case (4), valve rod (5), valve body (1) from left to right is equipped with water inlet (6) and delivery port (7), case (4) are established between water inlet (6) and delivery port (7) valve rod (5) lower extreme is connected with case (4), valve rod (5) upper end is connected with opening and close handle (2), characterized by: the valve seat (3) comprises a first valve seat (8) and a second valve seat (9), the first valve seat (8) and the second valve seat (9) are respectively arranged on two sides of the valve body (1) corresponding to the valve core (4), a limiting seat (10) and a pushing seat (11) are further arranged in the valve body (1) from outside to inside corresponding to the position of the water inlet (6), a spring (12) acting on the first valve seat (8) is arranged on the pushing seat (11), the periphery of the limiting seat (10) is in threaded fit with the inner periphery of the water inlet (6), and the inner end of the limiting seat (10) is abutted against the outer end of the pushing seat (11).

2. The ball valve with better sealing performance according to claim 1, wherein: the first valve seat (8) is provided with at least 4 first round holes (13), the pushing seat (11) is provided with second round holes (14) corresponding to the first round holes (13) of the first valve seat (8) one by one, the number of the springs (12) is the same as that of the first round holes (13), and two ends of the springs (12) are respectively embedded in the corresponding first round holes (13) and second round holes (14).

3. The ball valve with better sealing performance according to claim 1, wherein: the right end face of the pushing seat (11) is provided with at least 2 positioning flanges (15), a positioning groove (16) matched with the positioning flanges (15) is formed in the water inlet (6) of the valve body (1), and the axial depth of the positioning groove (16) of the water inlet (6) is longer than the axial length of the positioning flanges (15) of the pushing seat (11).

4. The ball valve with better sealing performance according to claim 1, wherein: the limiting seat (10) is provided with a limiting flange (17) extending towards the periphery, and a limiting groove (18) matched with the limiting flange (17) is formed in the position, corresponding to the outer end of the water inlet (6), of the valve body (1).

5. The ball valve with better sealing performance according to claim 4, wherein: the left end face of the limit flange (17) is provided with a third round hole (19) for assisting the rotation of the limit seat (10).

6. The ball valve with better sealing performance according to claim 1, wherein: the valve body (1) comprises a first valve body (20) and a second valve body (21), the first valve body (20) and the second valve body (21) are connected through bolts, and a valve body (1) sealing ring is clamped between the first valve body (20) and the second valve body (21).

7. The ball valve with better sealing performance according to claim 1, wherein: the periphery of the first valve seat (8) is provided with a first groove (23), a first sealing ring (24) is arranged in the first groove (23), the first sealing ring (24) and the valve body (1) are in sealing fit with the inner wall of the water inlet (6), the periphery of the second valve seat (9) is provided with a second groove (25), a second sealing ring (26) is arranged in the second groove (25), and the second sealing ring (26) and the valve body (1) are in sealing fit with the inner wall of the water inlet (6).