CN211175426U

CN211175426U - Double-eccentric full-lining bidirectional sealing rubber lining butterfly valve

Info

Publication number: CN211175426U
Application number: CN201922191069.8U
Authority: CN
Inventors: 郑自章; 洪健
Original assignee: Jiangxi Henglida Machinery Equipment Co ltd
Current assignee: Jiangxi Henglida Machinery Equipment Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-08-04
Anticipated expiration: 2029-12-10

Abstract

The utility model relates to a double-eccentric full-lining bidirectional sealing rubber-lined butterfly valve, which comprises a valve body, wherein a butterfly plate is arranged in the valve body, a rubber sealing ring is arranged between the butterfly plate and the valve body, an upper valve seat is arranged at the top of the valve body, an upper valve shaft is arranged in the upper valve seat, the upper valve shaft penetrates through the valve body and is connected with the butterfly plate through the rubber sealing ring, an upper shaft sleeve is arranged between the upper valve shaft and the upper valve seat, a lower valve seat is arranged at the bottom of the valve body, a lower valve shaft is arranged in the lower valve seat, the top end of the lower valve shaft penetrates through the valve body and is connected with the rubber sealing ring through a butterfly plate, a lower shaft sleeve is arranged between the lower valve shaft and the lower valve seat, sealing grooves are respectively arranged between the upper valve shaft and the upper valve seat and between the lower valve shaft and the lower valve seat, sealing rings are arranged in the sealing grooves, the double-eccentric full-lining bidirectional sealing rubber-lined butterfly valve improves the strength of the butterfly plate and the sealing property of the butterfly valve, and is beneficial to the use of the butterfly valve.

Description

Double-eccentric full-lining bidirectional sealing rubber lining butterfly valve

Technical Field

The utility model relates to a two-way sealed lining with rubber butterfly valve of two eccentric centers full lining belongs to sealed butterfly valve technical field.

Background

The butterfly valve, also called flap valve, is a kind of simple-structured regulating valve, the butterfly valve that can be used for the on-off control of the low-pressure pipeline medium means that the closing member (valve clack or butterfly plate) is a disc, rotate around the valve shaft and reach a kind of valve opened and closed, the valve shaft seal of the existing double-eccentric butterfly valve mostly adopts the gland to compress the packing, this kind of sealing way makes the shaft seal use after a period of time, the axial leakage situation appears, in addition, the pipeline pressure of the existing double-eccentric butterfly valve is large, the reverse can't be pressurized, belong to the check valve, correspondingly, its opening torque is great, there is the big problem of reverse pressurized deformation.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model overcomes current defect, provides a two-way sealed rubber lining butterfly valve of two eccentric full lining, has solved that the valve shaft is sealed not enough to lead to revealing and opening torque great, has the big problem of reverse pressurized deformation.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a two eccentric full lining two way seal rubber lining butterfly valve, includes the valve body, be equipped with the butterfly plate in the valve body, be equipped with rubber seal ring between butterfly plate and the valve body, the valve body top is equipped with the disk seat, upward be equipped with the valve shaft in the disk seat, just go up the valve shaft and run through valve body and rubber seal ring and be connected the butterfly plate, upward be equipped with the axle sleeve between valve shaft and the last disk seat, the valve body bottom is equipped with down the disk seat, be equipped with down the valve shaft in the disk seat down, just the valve shaft top runs through the valve body and is connected the butterfly plate with rubber seal ring down, be equipped with down the axle sleeve down between valve shaft and the lower disk seat, upward between valve shaft and the last disk seat, all be.

Furthermore, a transverse reinforcing rib is arranged on the butterfly plate, and the transverse reinforcing rib is connected with the upper valve shaft and the lower valve shaft respectively.

Furthermore, vertical reinforcing ribs are connected between the transverse reinforcing ribs, and the vertical reinforcing ribs are arranged on the butterfly plate.

Furthermore, a sealing cover is arranged at the bottom of the lower valve seat and is movably connected with the lower valve seat.

Further, the sealing ring comprises an annular ring and an embedding ring, a cutting groove is formed in the bottom of the annular ring, an arc-shaped embedding head is arranged at the top of the embedding ring, and the arc-shaped embedding head is arranged in the cutting groove.

Furthermore, the bottom of the embedding ring is provided with a concave hole, and the cross section of the concave hole is of an arc-shaped structure.

The utility model has the advantages that:

1. by arranging the transverse reinforcing ribs and the vertical reinforcing ribs, the strength of the butterfly plate is improved, the situation that the connecting position of the valve shaft and the butterfly plate is damaged due to large moment is avoided when the butterfly valve is opened, and the service life of the butterfly valve is prolonged;

2. through setting up the sealing washer for the annular circle of embedding circle arc embedding head extrusion grooving both sides behind the pressure of medium makes its laminating outer wall, has improved the sealed effect of sealing washer.

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.

FIG. 1 is a schematic view of the overall structure of a double-eccentric full-lining two-way sealing rubber-lined butterfly valve of the present invention;

FIG. 2 is a side view of a butterfly plate of a double eccentric full lining two-way butterfly valve with rubber lining;

fig. 3 is a schematic structural view of the sealing ring of the double-eccentric full-lining bidirectional sealing rubber-lined butterfly valve of the present invention.

Reference numbers in the figures: 1. a valve body; 2. a butterfly plate; 3. a rubber seal ring; 4. an upper valve seat; 5. an upper valve shaft; 6. an upper shaft sleeve; 7. a lower valve seat; 8. a lower valve shaft; 9. a lower shaft sleeve; 10. a sealing groove; 11. a seal ring; 12. transverse reinforcing ribs; 13. a vertical reinforcing rib; 14. sealing the cover; 15. an annular ring; 16. embedding a ring; 17. an arcuate insertion head; 18. grooving; 19. a concave hole.

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. 1-3, a double eccentric full lining bidirectional sealing rubber-lined butterfly valve comprises a valve body 1, a butterfly plate 2 is arranged in the valve body 1, a rubber sealing ring 3 is arranged between the butterfly plate 2 and the valve body 1, an upper valve seat 4 is arranged at the top of the valve body 1, an upper valve shaft 5 is arranged in the upper valve seat 4, the upper valve shaft 5 penetrates through the valve body 1 and is connected with the butterfly plate 2 through the rubber sealing ring 3, an upper shaft sleeve 6 is arranged between the upper valve shaft 5 and the upper valve seat 4, a lower valve seat 7 is arranged at the bottom of the valve body 1, a lower valve shaft 8 is arranged in the lower valve seat 7, the top end of the lower valve shaft 8 penetrates through the valve body 1 and is connected with the butterfly plate 2 through the rubber sealing ring 3, a lower shaft sleeve 9 is arranged between the lower valve shaft 8 and the lower valve seat 7, sealing grooves 10 are formed between the upper valve shaft 5 and the upper valve seat 4 and between the lower valve shaft 8 and the lower valve seat 7, and sealing rings 11 are arranged in the sealing grooves 10.

More specifically, be equipped with horizontal strengthening rib 12 on the butterfly plate 2, just horizontal strengthening rib 12 is connected and is connected respectively and connect upper valve shaft 5 and lower valve shaft 8, be connected with vertical strengthening rib 13 between the horizontal strengthening rib 12, just on butterfly plate 2 was located to vertical strengthening rib 13, improved butterfly plate 2's intensity, disk seat 7 bottom is equipped with closing cap 14 down, just disk seat 7 under the 14 swing joint of closing cap, sealing washer 11 includes annular ring 15 and embedding circle 16, annular ring 15 bottom is equipped with grooving 18, embedding ring 16 top is equipped with arc embedding head 17, just arc embedding head 17 is located in grooving 18, embedding ring 16 bottom is equipped with shrinkage pool 19, just 19 cross sections of shrinkage pool become the arc structure, have improved sealing strength of sealing washer 11.

Example 2

The outer surface of the valve body 1 is provided with reinforcing ribs for improving the stress strength of the valve body 1 so as to protect the butterfly valve and prolong the service life of the butterfly valve.

The utility model discloses the theory of operation: during the use, horizontal strengthening rib 12 has improved the intensity of butterfly plate 2 with vertical strengthening rib 13, and avoid moment great messenger valve shaft and the impaired condition to appear with butterfly plate 2 hookup location when opening, be favorable to prolonging the life of butterfly valve, when sealing washer 11 uses, make embedding circle 16 behind the pressure of medium annular ring 15 of the 18 both sides of arc embedding head 17 extrusion grooving, make its laminating outer wall, the sealed effect of sealing washer 11 has been improved, very big improvement the sealing performance of butterfly valve.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. A double-eccentric full-lining bidirectional-sealing rubber-lined butterfly valve comprises a valve body (1) and is characterized in that a butterfly plate (2) is arranged in the valve body (1), a rubber sealing ring (3) is arranged between the butterfly plate (2) and the valve body (1), an upper valve seat (4) is arranged at the top of the valve body (1), an upper valve shaft (5) is arranged in the upper valve seat (4), the upper valve shaft (5) penetrates through the valve body (1) and is connected with the rubber sealing ring (3) to form the butterfly plate (2), an upper shaft sleeve (6) is arranged between the upper valve shaft (5) and the upper valve seat (4), a lower valve seat (7) is arranged at the bottom of the valve body (1), a lower valve shaft (8) is arranged in the lower valve seat (7), the top end of the lower valve shaft (8) penetrates through the valve body (1) and is connected with the butterfly plate (2) through the rubber sealing ring (3), and a lower, and sealing grooves (10) are arranged between the upper valve shaft (5) and the upper valve seat (4) and between the lower valve shaft (8) and the lower valve seat (7), and sealing rings (11) are arranged in the sealing grooves (10).

2. The double-eccentric full-liner bidirectional rubber-lined butterfly valve of claim 1, wherein: the butterfly plate (2) is provided with a transverse reinforcing rib (12), and the transverse reinforcing rib (12) is connected with the upper valve shaft (5) and the lower valve shaft (8) respectively.

3. The double-eccentric full-liner bidirectional rubber-lined butterfly valve of claim 2, wherein: vertical reinforcing ribs (13) are connected between the transverse reinforcing ribs (12), and the vertical reinforcing ribs (13) are arranged on the butterfly plate (2).

4. The double-eccentric full-liner bidirectional rubber-lined butterfly valve of claim 1, wherein: the bottom of the lower valve seat (7) is provided with a sealing cover (14), and the sealing cover (14) is movably connected with the lower valve seat (7).

5. The double-eccentric full-liner bidirectional rubber-lined butterfly valve of claim 1, wherein: the sealing ring (11) comprises an annular ring (15) and an embedding ring (16), a cutting groove (18) is formed in the bottom of the annular ring (15), an arc-shaped embedding head (17) is arranged at the top of the embedding ring (16), and the arc-shaped embedding head (17) is arranged in the cutting groove (18).

6. The double-eccentric full-liner bidirectional rubber-lined butterfly valve of claim 5, wherein: the bottom of the embedding ring (16) is provided with a concave hole (19), and the cross section of the concave hole (19) is of an arc-shaped structure.