CN219013374U

CN219013374U - All-metal hard-seal butterfly valve with five eccentric structures

Info

Publication number: CN219013374U
Application number: CN202222322160.0U
Authority: CN
Inventors: 焦敬; 王有有; 王禹
Original assignee: Tianjin Eteo Technology Co ltd
Current assignee: Tianjin Eteo Technology Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2023-05-12
Anticipated expiration: 2032-09-01

Abstract

The utility model relates to the field of valve design, and provides an all-metal hard seal five-eccentric butterfly valve which comprises a butterfly valve main body, wherein a rotary handle is arranged on one side of the top end of the butterfly valve main body, a driving box is arranged on one side of the butterfly valve main body, a valve rod is arranged at the bottom end of the driving box, a valve plate is arranged at the bottom end of the valve rod, a valve body is arranged outside the valve plate, a sealing ring is arranged outside the valve plate, a valve seat is arranged on one side of the valve body, a side sealing ring is arranged at the bottom end of the valve seat, a limiting block is arranged at the bottom end of the valve seat, and a sealing rear cover is arranged at the bottom end of the limiting block. Through setting up valve plate and disk seat and directly being the face type contact, improve valve sealing ability, scour protection ability, increase axial and radial eccentricity, valve rod biax design increases valve circulation ability, alleviates the medium resistance, and has two-way sealing effect, has solved valve rod and valve plate simultaneously, and phenomenon such as the jam, interior hourglass that lead to owing to thermal expansion coefficient is inconsistent between valve plate and sealing ring, disk seat and the valve body.

Description

All-metal hard-seal butterfly valve with five eccentric structures

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to an all-metal hard seal butterfly valve with a five-eccentric structure.

Background

The eccentric butterfly valve is divided into a single eccentric butterfly valve, a double eccentric butterfly valve, a triple eccentric butterfly valve and a variable eccentric butterfly valve. Opposite the concentric butterfly valve. The axis of the valve rod is deviated from the center of the disc and the center of the body, and the butterfly valve with the sealing pair being an inclined cone is called an eccentric butterfly valve.

The five-eccentric butterfly valve is widely used for pipelines for conveying various corrosive and non-corrosive fluid media in water supply and drainage, heat supply, a producer, gas, steam, natural gas, city gas, cold and hot air, chemical smelting engineering and power generation environment-friendly systems, and is used for regulating and cutting off the flow of the media.

The prior art has the following problems:

when the existing butterfly valve is used, the valve rod is inconsistent with the valve plate, and the valve plate is inconsistent with the sealing ring, the valve seat is inconsistent with the valve body in thermal expansion coefficient, so that the phenomena of jamming, internal leakage and the like are easily caused.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an all-metal hard seal butterfly valve with a five-eccentric structure, which solves the existing problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an all-metal hard seal five eccentric structures butterfly valve, includes the butterfly valve main part, butterfly valve main part top one side is provided with rotatory handle, butterfly valve main part one side is provided with the drive case, the drive case bottom is provided with the valve rod, the valve rod bottom is provided with the valve plate, the valve plate outside is provided with the valve body, the valve plate outside is provided with the sealing washer, valve body one side is provided with the disk seat, the bottom is provided with the side seal circle, the disk seat bottom is provided with the stopper, the stopper bottom is provided with sealed back lid.

As a preferable technical scheme of the utility model, the outer side of the valve plate is provided with the pressing ring, the outer side of the pressing ring and the inner side of the valve seat are correspondingly provided with inclined planes, and the valve seat is movably connected with the pressing ring through the valve rod.

As the preferable technical scheme of the utility model, the top end of the valve rod is provided with an upper bearing, the bottom end of the valve rod is provided with a lower bearing, and the valve rod is movably connected with the upper bearing and the lower bearing.

As a preferable technical scheme of the utility model, the rotary handle is in transmission connection with the valve rod through a driving box, and the upper bearing and the lower bearing are connected with the valve body.

As a preferable technical scheme of the utility model, the size of the valve plate is matched with the size of the valve body, and the valve plate is movably connected with the valve body through the valve rod.

As a preferable technical scheme of the utility model, the top end of the upper bearing is provided with a pressing material, the top end of the pressing material is provided with a pressing plate, and the bottom end of the pressing plate is also provided with a side sealing ring.

Compared with the prior art, the utility model provides an all-metal hard seal butterfly valve with a five-eccentric structure, which has the following beneficial effects:

1. according to the all-metal hard seal five-eccentric structure butterfly valve, the outer side of the pressing ring and the inner side of the valve seat are correspondingly provided with inclined planes, the valve seat is movably connected with the pressing ring through the valve rod, the valve plate is directly in surface contact with the valve seat, the sealing capacity and the anti-scouring capacity of the valve are improved, and the axial and radial eccentricity is increased; the valve rod is correspondingly provided with the upper bearing and the lower bearing through the top end and the bottom end of the valve rod, the valve rod is movably connected with the upper bearing and the lower bearing, the double-shaft design is adopted, the circulation capacity of the valve is improved, the medium resistance is reduced, and the double-shaft valve has a bidirectional sealing effect.

2. The butterfly valve with the all-metal hard seal five-eccentric structure is in transmission connection with a valve rod through a driving box by a rotary handle, and the driving box can be provided with various driving structures according to requirements; the valve plate passes through valve rod and valve body swing joint, and the upper bearing top is provided with the swager, and the swager top is provided with the clamp plate, and the clamp plate bottom also is provided with the side seal circle, and two sets of side seal circles further improve the sealing performance of valve body.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the front view of the present utility model;

FIG. 3 is a schematic view of a valve seat structure according to the present utility model.

In the figure: 1. a butterfly valve body; 2. rotating the grip; 3. a drive box; 4. a valve stem; 401. an upper bearing; 402. a lower bearing; 403. pressing; 404. a pressing plate; 5. a valve plate; 501. a pressing ring; 6. a valve body; 7. a seal ring; 8. a valve seat; 9. a side seal ring; 10. a limiting block; 11. and sealing the rear cover.

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.

Referring to fig. 1 to 3, in the present embodiment: the utility model provides an all-metal hard seal five eccentric structures butterfly valve, including butterfly valve main part 1, butterfly valve main part 1 top one side is provided with rotatory handle 2, butterfly valve main part 1 one side is provided with driving case 3, driving case 3 bottom is provided with valve rod 4, and valve rod 4 bottom is provided with valve plate 5, and the valve plate 5 outside is provided with valve body 6, and the valve plate 5 outside is provided with sealing washer 7, and valve body 6 one side is provided with disk seat 8, and the bottom is provided with side sealing washer 9, and disk seat 8 bottom is provided with stopper 10, and stopper 10 bottom is provided with sealed back lid 11.

In the embodiment, the outer side of the valve plate 5 is provided with the pressing ring 501, the outer side of the pressing ring 501 and the inner side of the valve seat 8 are correspondingly provided with inclined planes, the valve seat 8 and the pressing ring 501 are movably connected through the valve rod 4, and thus the valve plate 5 and the valve seat 8 are directly in surface contact, the sealing capacity and the anti-scouring capacity of the valve are improved, and the axial and radial eccentricity is increased; the top end of the valve rod 4 is provided with an upper bearing 401, the bottom end of the valve rod 4 is provided with a lower bearing 402, the valve rod 4 is movably connected with the upper bearing 401 and the lower bearing 402, so that the double-shaft design is arranged, the circulation capacity of the valve is improved, the medium resistance is reduced, and the double-shaft valve has a bidirectional sealing effect; the rotary handle 2 is in transmission connection with the valve rod 4 through the driving box 3, so that the driving box 3 can be arranged to be provided with various driving structures according to the needs; the size of the valve plate 5 is matched with the size of the valve body 6, and the valve plate 5 is movably connected with the valve body 6 through the valve rod 4, so that the sealing performance of the valve body 6 is improved; the top of the upper bearing 401 is provided with a pressing material 403, the top of the pressing material 403 is provided with a pressing plate 404, the bottom of the pressing plate 404 is also provided with side sealing rings 9, and thus, the sealing performance of the valve body 6 is further improved by arranging two groups of side sealing rings 9.

The working principle and the using flow of the utility model are as follows: an operator rotates the rotary handle 2 to drive the internal valve rod 4 to rotate through the driving box 3 and drive the valve plate 5 to rotate, so that the valve is opened or closed; the outer side of the pressing ring 501 and the inner side of the valve seat 8 are correspondingly provided with inclined planes, the valve seat 8 is movably connected with the pressing ring 501 through the valve rod 4, the valve plate 5 is directly in surface contact with the valve seat 8, the sealing capacity and the anti-scouring capacity of the valve are improved, and the axial and radial eccentricity is increased; the upper bearing 401 and the lower bearing 402 are correspondingly arranged at the top end and the bottom end of the valve rod 4, the valve rod 4 is movably connected with the upper bearing 401 and the lower bearing 402, and the double-shaft design increases the circulation capacity of the valve, reduces the medium resistance and has a bidirectional sealing effect; the rotary handle 2 is in transmission connection with the valve rod 4 through the driving box 3, and the driving box 3 can be provided with various driving structures according to the needs; the valve plate 5 is movably connected with the valve body 6 through the valve rod 4, so that the sealing performance of the valve body 6 is improved; the top of the upper bearing 401 is provided with a pressing material 403, the top of the pressing material 403 is provided with a pressing plate 404, the bottom of the pressing plate 404 is also provided with side sealing rings 9, and the sealing performance of the valve body 6 is further improved by the two groups of side sealing rings 9.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an all-metal hard seal five eccentric structures butterfly valve, includes butterfly valve main part (1), its characterized in that: the butterfly valve is characterized in that a rotary handle (2) is arranged on one side of the top end of the butterfly valve body (1), a driving box (3) is arranged on one side of the butterfly valve body (1), a valve rod (4) is arranged at the bottom end of the driving box (3), a valve plate (5) is arranged at the bottom end of the valve rod (4), a valve body (6) is arranged on the outer side of the valve plate (5), a sealing ring (7) is arranged on the outer side of the valve plate (5), a valve seat (8) is arranged on one side of the valve body (6), a side sealing ring (9) is arranged at the bottom end of the valve seat (8), a limiting block (10) is arranged at the bottom end of the limiting block (10), and a sealing rear cover (11) is arranged at the bottom end of the limiting block (10).

2. The all-metal hard seal five-eccentric structure butterfly valve of claim 1, wherein: the valve plate (5) outside is provided with clamping ring (501), clamping ring (501) outside and disk seat (8) inboard correspond and are provided with the inclined plane, valve plate (5) and clamping ring (501) pass through valve rod (4) swing joint.

3. The all-metal hard seal five-eccentric structure butterfly valve of claim 1, wherein: the top of the valve rod (4) is provided with an upper bearing (401), the bottom of the valve rod (4) is provided with a lower bearing (402), and the valve rod (4) is movably connected with the upper bearing (401) and the lower bearing (402).

4. The all-metal hard seal five-eccentric structure butterfly valve of claim 1, wherein: the rotary handle (2) is in transmission connection with the valve rod (4) through the driving box (3), and the valve plate (5) is connected with the valve body (6) through the upper bearing (401) and the lower bearing (402).

5. The all-metal hard seal five-eccentric structure butterfly valve of claim 1, wherein: the size of the valve plate (5) is matched with the size of the valve body (6), and the valve plate (5) is movably connected with the valve body (6) through the valve rod (4).

6. An all-metal hard seal five-eccentric structure butterfly valve according to claim 3, wherein: the top of the upper bearing (401) is provided with a pressing material (403), the top of the pressing material (403) is provided with a pressing plate (404), and the bottom of the pressing plate (404) is also provided with a side sealing ring (9).