CN216158319U

CN216158319U - Corrosion-resistant butterfly valve of dismantling

Info

Publication number: CN216158319U
Application number: CN202122110918.XU
Authority: CN
Inventors: 金胜利; 丁红强
Original assignee: Zhengzhou Yivalve Fluid Technology Co ltd
Current assignee: Zhengzhou Yivalve Fluid Technology Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-04-01
Anticipated expiration: 2032-01-19

Abstract

The utility model discloses a corrosion-resistant detachable butterfly valve, belonging to the technical field of butterfly valves, comprising a valve body and pipes arranged on both sides of the valve body. The part includes an outer connector arranged at the end of the pipeline, and an inner connector matched with it is arranged on the inner side of the outer connector, and the outer connector and the inner connector are fixed by bolts and nuts, and the outer connector and the inner connector are fixed on the outer connector. Both are provided with annular grooves, a sealing rubber ring is arranged between the two annular grooves, and a liquid channel is arranged on the inner side of the outer connecting head, the inner connecting head and the sealing rubber ring; the utility model connects the butterfly valve and the two water pipes through the sealing connection piece. For connection, there are many corrosion-resistant rubber materials in the sealing connector, which can not only ensure the corrosion resistance and sealing performance of the butterfly valve, but also can easily remove the butterfly valve when the butterfly valve is damaged, and repair or replace the damaged place. .

Description

Corrosion-resistant butterfly valve of dismantling

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a corrosion-resistant detachable butterfly valve.

Background

The butterfly valve is a valve which uses a disc type opening and closing piece to rotate back and forth by about 90 degrees to open, close or adjust the medium flow. The butterfly valve has the advantages of simple structure, small volume, light weight, less material consumption, small installation size, small driving moment, simple and convenient operation and rapidness, and simultaneously has good flow regulation function and sealing closing characteristic, thereby being one of the fastest valve varieties developed in the last ten years. Butterfly valves are widely used. The variety and number of its uses are still expanding, and are developing towards high temperature, high pressure, large caliber, high sealing, long life, excellent regulation characteristics, and butterfly valve multifunction. The reliability and other performance indexes of the composite material reach higher levels.

With the application of the synthetic rubber for preventing chemical corrosion to the butterfly valve, the performance of the butterfly valve is improved. The synthetic rubber has the characteristics of corrosion resistance, erosion resistance, stable size, good rebound resilience, easiness in forming, low cost and the like, and synthetic rubbers with different properties can be selected according to different use requirements so as to meet the use working condition of the butterfly valve. But install butterfly valve and pipeline through complicated flange and other structures and seal when traditional butterfly valve installation, when the inboard valve plate of butterfly valve or other structures appear damaging, dismantle complicacy, it is troublesome to restore.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a corrosion-resistant detachable butterfly valve, which can be conveniently installed and detached, and can ensure corrosion resistance and sealing performance.

In order to achieve the purpose, the utility model provides a corrosion-resistant detachable butterfly valve which comprises a valve body and pipelines arranged on two sides of the valve body, wherein the two sides of the valve body are connected with the pipelines through sealing connecting pieces; sealing connection spare is in including setting up the outer joint head of pipeline end portion, the inboard of outer joint head is provided with complex in-connection joint with it, the outer joint head with fix through bolt and nut between the in-connection joint, the outer joint head with all be provided with the ring channel on the inner joint head, two be provided with a sealing rubber circle between the ring channel, the outer joint head the in-connection joint with the inboard of sealing rubber circle is provided with liquid channel.

Further, the outside of external connection head is provided with installs the inboard annular snap ring of pipeline, the outside of annular snap ring is provided with the rubber sleeve, liquid channel link up annular snap ring.

Further, the section of the annular snap ring is in a right trapezoid shape.

Furthermore, the two internal connection joints are fixedly arranged on the valve body, and the liquid channel is communicated with the internal channel of the valve body.

Further, a valve plate is arranged in the middle of the valve body, a matched sealing piece is arranged on the outer side of the valve plate and the inner side of the valve body, and a valve seat is arranged on the lower portion of the valve body.

Furthermore, a magnetic lock is arranged above the valve body, a valve rod is arranged in the middle of the magnetic lock in a penetrating and rotating mode, and a handle is arranged at the end portion of the valve rod.

Further, the valve rod is connected with the valve plate through a flange plate.

Furthermore, six groups of mutually matched bolt and nuts are arranged on each sealing connecting piece.

The technical scheme of the utility model has the following beneficial effects:

according to the butterfly valve, the sealing connecting pieces are arranged on two sides of the traditional butterfly valve, the butterfly valve is connected with the pipeline through the sealing connecting pieces, when the interior of the butterfly valve is damaged, the butterfly valve is often difficult to maintain, the sealing connecting pieces are used for connecting the butterfly valve with the pipeline through bolts and nuts, and the maintenance or replacement can be realized only by disassembling a structure connected with the butterfly valve; the sealing structure is added to the original structure, and meanwhile, rubber is arranged on the inner side of the sealing structure, so that the sealing performance of the butterfly valve can be improved, and the butterfly valve is corrosion-resistant; an annular snap ring with a right trapezoid cross section is arranged between the outer connecting piece and the pipeline, and a rubber sleeve is arranged between the annular snap ring and the pipeline, so that the sealing performance between the structures can be improved by the rubber sleeve, and the connection can be firmer by the rubber sleeve; the liquid passage connects the passageway in the butterfly valve body, and the inside valve plate diameter of butterfly valve is close with liquid passage's diameter simultaneously, can guarantee under the valve open mode, during the liquid circulation, reduces the internal stress that the butterfly valve received to improve its factor of safety and life.

Drawings

FIG. 1 is a schematic structural view of a corrosion resistant removable butterfly valve of the present invention;

FIG. 2 is a side view of a corrosion resistant removable butterfly valve of the present invention with the seal connection removed;

FIG. 3 is a cross-sectional view of the outer connector of a corrosion resistant removable butterfly valve of the present invention;

FIG. 4 is a side view of the outer connector of a corrosion resistant removable butterfly valve of the present invention;

reference numerals:

1. a valve body; 2. a pipeline; 3. a sealing connection; 4. an outer connector; 5. sealing the rubber ring; 6. an inner connection joint; 7. a bolt and a nut; 8. a magnetic lock; 9. a valve stem; 10. a handle; 11. a valve seat; 12. a valve plate; 13. a first notch groove; 14. a second notch groove; 15. a first T-shaped seal ring; 16. a second T-shaped seal ring; 17. an annular groove; 18. a liquid channel; 19. an annular snap ring; 20. a rubber sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model, are within the scope of the utility model.

As shown in fig. 1-4: the utility model provides a corrosion-resistant butterfly valve dismantled, for make the valve can conveniently restore when valve plate or other internals go wrong, should be provided with corresponding valve structure, make it be detachable structure, including valve body and the pipeline of setting in the valve body both sides, the both sides of valve body with connect through sealing connection spare between the pipeline, it is very obvious, connect comparatively inseparably during the installation, be detachable structure simultaneously, often use the bolt and nut structure in the machinery, consequently the last connection structure who uses of sealing connection spare should be bolt and nut, should be provided with the multiunit structure simultaneously and connect in order to reach corresponding connection effect.

Specifically, as shown in fig. 1-4, a corrosion-resistant detachable butterfly valve, in order to enable a sealing connector 3 to combine a pipeline 2 and a valve, and meanwhile, the butterfly valve is of a detachable structure, the sealing connector 3 can be selectively arranged into two parts, each part is tightly connected with one of the structures, then the two parts are connected through a bolt and nut 7 structure, and in order to enable the butterfly valve to have a corrosion-resistant function, a corrosion-resistant material similar to rubber is arranged at the connection sealing position of the two parts, so that the butterfly valve has a better sealing effect and a better corrosion-resistant effect, the butterfly valve comprises a valve body 1 and pipelines 2 arranged at two sides of the valve body 1, and the two sides of the valve body 1 are connected with the pipelines through the sealing connector 3; the sealing connecting piece 3 comprises an outer connector 4 arranged at the end part of the pipeline 2, the inner side of the outer connector 4 is provided with an inner connector 6 matched with the outer connector, the outer connector 4 is fixed with the inner connector 6 through a bolt and a nut 7, the outer connector 4 and the inner connector 6 are both provided with annular grooves 17, a sealing rubber ring 5 is arranged between the two annular grooves 17, the inner sides of the outer connector 4, the inner connector 6 and the sealing rubber ring 5 are provided with liquid channels 18, obviously, the sealing rubber ring 5 and the two annular grooves are in clearance connection, as the sealing rubber ring 5 is made of soft materials, the joint of the sealing rubber ring 5 can be arranged to be larger, the sealing rubber ring is filled with a structure connected with the sealing rubber ring through extrusion when being arranged, the sealing rubber ring achieves the sealing effect, and simultaneously, when a part of butterfly valves are used, the single rubber material does not have enough corrosion resistance effect, so that a layer of corresponding corrosion-resistant coating can be brushed inside the valve for special purposes to improve the corrosion resistance effect.

According to an embodiment of the present invention, as shown in fig. 1 and 3, in order to make the structure of the sealing connector 3 and the pipe 2 tightly connected and to facilitate installation, a corresponding connection structure should be provided, an annular snap ring 19 installed inside the pipe 2 is provided outside the external connector 4, a rubber sleeve 20 is provided outside the annular snap ring 19, and the liquid channel 18 penetrates through the annular snap ring 19, and it is obvious that the rubber sleeve 20 should be larger in order to make the connection between the annular snap ring 19 and the rubber sleeve 20 tightly connected, and installation can be performed by using a cold-fitting process or by simply polishing the inner wall of the pipe 2, so that installation is more convenient.

According to an embodiment of the present invention, as shown in fig. 4, in order to make the connection between the inside of the sealing connector 3 stable, a plurality of sets of matched bolt and nut 7 structures should be provided, and six sets of matched bolt and nut 7 structures are provided on each sealing connector 3, it is obvious that the number of nuts can be set to 4 sets or 5 sets, and the same function can be achieved.

According to an embodiment of the present invention, as shown in fig. 2, in order to provide a good sealing effect for the valve, a corresponding sealing structure should be provided outside the valve plate 12 to improve the sealing performance, the sealing member includes a first notch groove 13 provided outside the valve plate 12 and a second notch groove 14 provided inside the valve body 1, a first T-shaped sealing ring 15 and a second T-shaped sealing ring 16 are fixedly provided inside the first notch groove 13 and the second notch groove 14, and it is obvious that the first T-shaped sealing ring 15 and the second T-shaped sealing ring 16 are T-shaped to provide a better sealing effect, and can be implemented as a common rectangular structure.

The use method of the utility model comprises the following steps: cutting the pipeline 2 through a pipe cutting machine, grinding the inner wall of the end part of the pipeline 2, inserting an annular clamping ring 19 of an external connector 4 into the pipeline 2 after grinding is finished, sealing and stabilizing between the pipeline and the pipeline are realized through a rubber sleeve 20 arranged on the outer side of the annular clamping ring 19, connecting the pipelines 2 at two ends with one external connector 4, inserting a butterfly valve body between the two external connectors 4 after connection is finished, installing a sealing rubber ring 5 in an annular groove 17 of each external connector 4, clamping the sealing rubber ring 5 in an annular groove 17 on an internal connector 6 on the outer side of the valve body 1, connecting and fixing the external connectors 4 and the internal connector 6 through bolt nuts 7, and finishing installation and use after connection and fixation; when the problem appears in the inside of valve and needs to be dismantled, only need pull down bolt and nut 7 of installation, can take off the butterfly valve body, maintain or change.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A corrosion-resistant detachable butterfly valve, characterized in that it comprises a valve body (1) and pipes (2) arranged on both sides of the valve body (1), the two sides of the valve body (1) being connected to the The pipes (2) are connected by sealing connectors (3);

The sealing connector (3) includes an outer connector (4) arranged at the end of the pipe (2), and an inner connector (6) matched therewith is provided on the inner side of the outer connector (4), The outer connecting head (4) and the inner connecting head (6) are fixed by bolts and nuts (7). Both the outer connecting head (4) and the inner connecting head (6) are provided with annular rings. A groove (17), a sealing rubber ring (5) is arranged between the two annular grooves (17), the outer connecting head (4), the inner connecting head (6) and the sealing rubber ring ( The inner side of 5) is provided with a liquid channel (18).

2. A corrosion-resistant detachable butterfly valve according to claim 1, characterized in that: an annular snap ring (19) installed on the inner side of the pipe (2) is provided on the outer side of the outer connector (4). ), the outer side of the annular snap ring (19) is provided with a rubber sleeve (20), and the liquid passage (18) penetrates the annular snap ring (19).

3 . The corrosion-resistant detachable butterfly valve according to claim 2 , wherein the cross section of the annular snap ring ( 19 ) is a right-angled trapezoid. 4 .

4. A corrosion-resistant detachable butterfly valve according to claim 1, characterized in that: the two inner connecting heads (6) are fixedly arranged on the valve body (1), and the liquid channel is (18) communicates with the internal passage of the valve body (1).

5. A corrosion-resistant detachable butterfly valve according to claim 1, characterized in that: a valve plate (12) is provided in the middle of the valve body (1), and the outer side of the valve plate (12) is connected to the valve plate (12). The inner side of the valve body (1) is provided with a matching sealing member, and the lower part of the valve body (1) is provided with a valve seat (11).

6. A corrosion-resistant detachable butterfly valve according to claim 5, characterized in that: a magnetic lock (8) is arranged above the valve body (1), and the middle of the magnetic lock (8) rotates through the middle A valve rod (9) is provided, and the end of the valve rod (9) is provided with a handle (10).

7 . The corrosion-resistant detachable butterfly valve according to claim 6 , wherein the valve stem ( 9 ) and the valve plate ( 12 ) are connected by a flange. 8 .

8 . The corrosion-resistant detachable butterfly valve according to claim 1 , wherein each of the sealing connectors ( 3 ) is provided with six sets of bolts and nuts ( 7 ) that cooperate with each other. 9 .